WO2013000402A1 - Single-shaft track-changeable vibration exciter - Google Patents

Abstract

Disclosed is a single-shaft track-changeable vibration exciter, comprising a vibration box (1), a bottom seat (2), a vibration-exciting spring (19), and a vibration-exciting shaft (3). The vibration-exciting shaft (3) is disposed on the vibration box (1). The vibration-exciting spring (19) is disposed between the vibration box (1) and the bottom seat (2). Multiple groups of track-restricting rod assemblies are slantingly arranged on either side of the vibration box (1). Each group of track-restricting rod assemblies comprises two track-restricting rod assemblies symmetrically arranged on either side of the vibration box (1). The two ends of each track-restricting rod assembly respectively connect by a hinge to the vibration box (1) and to the bottom seat (2). The structure of the track-restricting assemblies has multiple designs and comprises one group or multiple groups. The vibration exciter achieves exciting forces of circular, linear, and elliptical movement tracks on one device, all easily changeable by using a track-restricting rod design in place of a multi-shaft vibration exciter design. The present invention provides a single-shaft track-changeable vibration exciter that has a simplified structure, low manufacturing cost, and low energy consumption. The vibration exciter can be used in the horizontal position and the direction angles thereof can be easily adjusted. The present invention can be easily retrofitted onto old products on-site, and enhance the vibration-exciting functions.

Description

 Single-axis variable path exciter

 The present invention relates to the field of vibration machinery technology, and more particularly to an exciter assembly for use in a vibrating screen or a feeder in a mining machine, and more particularly to a single-axis variable path exciter. Background technique

 So far, the prior art mechanical vibration exciters can be divided into three categories according to the motion trajectory: circular, linear and elliptical; according to the structure of the exciter, it can be divided into three types: single axis, double axis and three axes. . The trajectories achieved by the various exciter structures are:

 1. The single-axis vibration exciter realizes a circular motion trajectory;

 2. The two-axis vibration exciter realizes a linear motion trajectory;

 3. The triaxial shaker achieves an elliptical motion trajectory.

 Although there are many improvements and innovations, many invention and utility model patents have been published, such as patent number 200920213889.6, and the patent name is "single-axis circular vibration track exciter for mechanical vibrating screen", patent number 200310119021.7, The patent name is "Double-axis inertial vibration exciter", patent number 200920213200.X, patent name "vibrator of three-axis elliptical vibrating screen", etc., although it has advanced nature, it does not exceed the single-axis or multi-axis combination. The framework of ideas.

 The motion trajectory is different, and the excitation work produced is different. Specifically:

1. The single-axis vibration exciter produces a circular motion trajectory. Its advantage is that it has both the normal direction vibration component and the tangential direction vibration component. The critical material is not easy to block the hole in the screen. Its disadvantage is the vibration box When the spring motion is combined, the material only has the upper and lower screening movements without the horizontal conveying motion (the horizontal component is extremely small). Therefore, all devices on the market that use single-axis exciters are all tilted to create horizontal transport using gravity. It is because of the oblique reason that the material is hurriedly dropped, the screening is insufficient, and the screening effect is not high.

 2. The two-axis exciter produces a linear motion trajectory. Its advantage is that the vibration direction angle can be adjusted from 0° to 90° (by changing the eccentric phase angle of the two excitation axes), usually 30°~ Direction angle of the 60° range. This enables the material to have both vertical and vertical screening movements and horizontal movement, so the two-axis shaker can be placed horizontally. It is precisely because of the flatness that the material is sieved sufficiently and the screening effect is excellent. Its disadvantage is that because the linear motion only has normal vibration and lacks tangential vibration, the critical material on the screen is easy to block holes, which affects the screening effect.

 3. The three-axis vibration exciter produces an elliptical motion trajectory. Its advantage is that it combines the advantages of circular motion and linear motion. It can be used horizontally and is not easy to block. However, the disadvantage is that the structure is complicated, the manufacturing cost is high, and the power consumption is large. And the three-axis vibration exciter (including the two-axis exciter) needs to open the exciter to disassemble the gear when adjusting the direction angle (that is, by adjusting the eccentric phase angle difference of the excitation shaft), which is very inconvenient and is adjusted by the user. It is extremely error-prone.

 In summary, in the prior art:

 If a single-axis vibration exciter is used, although the structure is simple, it must be inclined, the screening effect is greatly reduced, and the height difference between the high and low ends of the vibration box is large, which requires more space and increases the installation cost;

 If a multi-axis vibration exciter is used, it can be placed horizontally and the excitation work effect is improved, but the mechanism has many materials, the manufacturing is difficult, the running cost is high, and the vibration direction angle adjustment is extremely inconvenient;

The biggest shortcoming of the prior art is that: an exciter can only realize one kind of motion trajectory, and can not realize switching between different motion trajectories in the same device. Disclosure of invention

 The invention provides a single-axis variable trajectory exciter with simple structure, low cost, capable of forming multiple motion trajectories, adapting to various working conditions, convenient adjustment, high excitation efficiency and good screening effect. It solves the technical problems that different motion trajectories existing in the prior art need to select different vibration exciters, and the structure is complicated and the adjustment is inconvenient.

 The above technical problem of the present invention is solved by the following technical solutions: a single-axis variable trajectory exciter, comprising a vibration box body, a base, an excitation spring and an excitation shaft, wherein the excitation shaft is disposed on the vibration box body; The excitation spring is disposed between the vibration box body and the base, and is characterized in that: a plurality of sets of obliquely arranged orbital rod assemblies are arranged on both sides of the vibration box body, and each group of the rail rod assembly comprises a symmetric arrangement Two orbital rail assemblies on both sides of the vibrating case; the two ends of each of the fixed rail assemblies are respectively hinged to the vibrating case and the base.

 The "orbiting rod assembly" is the core component of the structure of the present invention, and the motion trajectory of the exciting force is determined by it (the orbiting rod: as the name implies, the rod that determines the motion trajectory).

 The structural features of the present invention are: (1) using a single shaft as an excitation source; (2) adding an obliquely and symmetrically arranged rail assembly assembly; (3) the vibration box does not need to be tilted, and can be installed horizontally. (4) The excitation direction angle adjustment mechanism is external.

 The functional features of the present invention are as follows: (1) The single-axis exciter structure can also be mounted flatly (ie, the circular motion trajectory also has a vibration direction angle); (2) realize the "circumference, straight line or ellipse" in the same machine. Switching between the excitation motion trajectories; (3) Implementing an external, intuitive, and simple excitation direction angle adjustment.

The core technology of the invention is: Using the structural design of "single-axis vibration exciter + orbiting rod assembly", the function of having the three movement tracks of "circumference, straight line or ellipse" in the same machine is realized, and the switch can be conveniently performed. Replace The above-mentioned functions that can be realized by using single-axis, two-axis and three-axis respectively in the prior art are substituted. Greatly improved the function and efficiency of the exciter.

 The mechanism of the invention can be equipped with three kinds of motion trajectory excitation functions of "circumference, straight line and ellipse", and the mechanism for conveniently switching the functions is as follows:

 The orbiting rod assembly performs two sub-movements under the inertial force of the eccentric shaft. 1 A small "sliding linear motion" along the axial direction of the orbiting rod, the motion trajectory is a straight line, and the length of motion is set by the orbiting rod. The slip spacing is determined; 2 is centered on the lower pivot point of the orbital pole, and the length from the fulcrum to the upper fulcrum is a small "swing arc motion", and the motion trajectory is an arc (because the arc is short, it can be approximated as a straight line). The length is determined by the spring characteristic (elasticity);

 The two-motion synthesis of "sliding linear motion" and "swinging arc motion" is expressed as a circular, linear or elliptical motion trajectory, thereby generating exciting forces for a variety of different motion trajectories;

 The long axis of the ellipse of the motion trajectory is determined by the weight of the vibration box and the spring characteristic (elastic spacing), which is a fixed value; the elliptical short axis of the motion trajectory is determined by the adjustment of the slip distance of the orbital rail (the slip spacing is adjustable, usually adjusted) The range is 0~20mm). The specific performance is:

 1. When the slip spacing is adjusted to zero, the motion trajectory appears as a straight line (actually an arc);

 2. When the slip spacing is equal to the length of the arc, the motion trajectory is round;

 3. When the slip spacing is not equal to the length of the arc, the motion trajectory appears as an ellipse.

 The significant effects of the present invention are:

 1. By adjusting the slip spacing of the orbital bar in the same device, it is convenient to switch between different motion trajectories such as circle, straight line and ellipse. Similar to the functions of circular, linear or elliptical motion trajectories independently generated by single, double and triple-axis exciters;

2. The vibration direction angle can be easily adjusted by changing the inclination of the orbital lever assembly. 3. The above functions of the present invention are implemented under the conditions of a single-axis vibration exciter:

 In the prior art, the single-axis vibration exciter can only realize the circular motion trajectory exciting force, and the circular motion trajectory excitation force has no vibration direction angle, and the material only has the upper and lower sieving motion without the horizontal conveying motion, so it needs to be installed obliquely. Use gravity to produce horizontal conveying motion of materials to run;

 The invention adopts the structural design of the "single-axis vibration exciter + fixed-rail assembly", and has the vibration direction angle under the condition of the single-axis vibration exciter (regardless of the motion trajectory), and the monolithic oblique use restriction is changed. , to achieve flat installation and use;

 That is to say, the same single-axis exciter must be used obliquely in the prior art, and the present invention can be used flat. This is a major technical highlight of the present invention! The flat use makes the material screening more complete and the screening effect is more ideal.

 Preferably, the assembly of the orbital rails is symmetrically arranged with a longitudinal line of the axis of the excitation shaft. When the number of sets of the orbital lever assembly is an odd array, in the fixed rail assembly on the same side of the vibration box body, the upper end hinge of the fixed rail assembly at the intermediate position is disposed at the fixed axis of the excitation shaft On the longitudinal line, the other orbital rod assemblies are arranged symmetrically with the longitudinal line where the excitation shaft is fixed.

 When viewed on one of the sides, in the odd-array rod assembly of the odd array, the upper end of the fixed-arm assembly of the middle set is hinged on the same line as the longitudinal line of the axis of the excitation shaft. When there is only one set, the hinge axis of the orbiting rod assembly and the vibration box body is disposed on the longitudinal line where the excitation shaft fixed axis is located. The circular motion trajectory of the original uniaxial vibration exciter is balanced and moved before and after the vibration box body with the longitudinal line of the excitation axis fixed axis line. If a limiting movement deviates from this line, it will appear. The amplitude of the vibration box is not uniform before and after, and the vibration balance is not guaranteed. Therefore, the vibration rail balance can be well ensured by setting the rail assembly as described above.

In another preferred embodiment, the number of sets of the orbiting rod assembly is an even array, and is located in the vibration box body. The orbital rail assembly on one side is symmetrically arranged centering on the longitudinal line where the excitation shaft is fixed.

 The orbital machine is arranged to be arranged, and is symmetrically arranged on both sides of the vibration box body, specifically on the side of the vibration box body at the two ends of the excitation shaft, and will be located on the same side of the vibration box body. The rail mechanism is evenly arranged to further increase the vibration balance.

 Preferably, the acute angle of the angle between the orbiting rod assembly and the horizontal plane of the vibration box is in the range of 30 to 60 degrees.

 The sum of the acute angle and the vibration direction angle is 90°, and the relationship between the vibration direction angle β and the orbital rod assembly and the horizontal angle α is β = 90° - a. A beneficial effect is: In the prior art, the linear and elliptical trajectory movements have a vibration direction angle and can be used flat; and the circular trajectory has no directional angle, that is, it needs to be inclined to generate horizontal transportation by gravity. force. In the present invention, whether it is a straight line, an ellipse or a circular trajectory, it can be placed horizontally and operated in an optimum effect state.

 The vibration direction angle is determined by the tilt angle of the rail assembly, so to facilitate the tilt adjustment of the rail assembly, an arc adjuster is provided. It can theoretically be adjusted between 0 and 90°, and is usually adjusted to be optimal from 30° to 60°.

 The structure of the orbiting rod assembly can be designed in a variety of ways, depending on the trajectory and working conditions:

 Preferably, the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc adjuster is fixed on the base, and a curved slot is formed in the arc adjuster, One end of the fixed rail is hinged in the arc slot, and the other end of the rail is hinged on the vibration box. The length of the orbiting rod is not adjustable, and the formed trajectory is a linear motion trajectory.

The motion trajectory of the structure exciter is a straight line, and the advantage is that the structure is extremely simple and the maintenance is convenient. It is especially suitable for locking under the condition of “straight line” single movement track and low investment requirement. In another preferred embodiment, the orbital rail assembly includes an arc adjuster and an orbiting rod, and the arc adjuster is fixed on the base, and the arc adjuster is provided with an arc-shaped slot; The orbital rail includes an upper rail and a lower rail, and the outer circumferential surfaces of the upper and lower rails are provided with threads, and the upper and lower rails have opposite threads; the connection of the upper and lower rails is provided. There is a threaded sleeve, one end of the upper fixed rail is hinged on the vibration box body, and the other end is located in the screw sleeve, one end of the lower rail rod is hinged in the arc slot, and the other end is located in the screw sleeve.

 The orbital rod is fixed in the threaded sleeve, and the threaded sleeve performs a small arc offset movement. The above structure limits the circular motion trajectory of the original uniaxial vibration exciter, so that the motion trajectory becomes a straight line, which not only makes the material have vertical vertical screening movement and horizontal conveying motion, so that the material screening is more sufficient, screening The effect is more ideal, and the limitation condition that the single-axis vibration exciter must tilt the vibration box body is overcome, and the vibration box body is placed flat.

 The orbiting rod and the threaded sleeve are threaded, that is, the length of the orbiting rod is adjustable, and it is convenient to meet any length requirement within the size of the factory.

 The performance of the structural solution is the same as that of the previous structural solution. The difference is that the length of the orbital rail is adjustable, and fine adjustment can be made when the performance of the spring compression elasticity changes to ensure that the equipment is always in an optimal state.

 In a further preferred embodiment, the orbital rail assembly includes an arc adjuster and an orbiting rod, and the arc adjuster is fixed on the base, and the arc adjuster is provided with a curved slot; The railing rod includes a light rod, and a sliding sleeve is sleeved on the light rod; the sliding sleeve is hinged on the vibration box body, and the light rod is hinged in the arc slot.

 The motion trajectory of the structure exciter is elliptical, and the advantage is that the structure is extremely simple and the maintenance is convenient. It is especially suitable for use as a single trajectory of "ellipse" and low investment requirements.

In still another preferred embodiment, the orbiting rod assembly includes an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and the curved adjuster is provided with a curved slot; the fixed rail includes a light rod, and a threaded rod segment is arranged at each end of the polished rod, and the sliding rod is sleeved on the polished rod The diameter of the polished rod section is larger than the diameter of the screw rod section, and the length of the polished rod section is smaller than the length of the sliding sleeve; the combination of a set of limiting nut and the lock nut is respectively arranged on the screw section of the both ends of the polished rod section, and the sliding sleeve and the two sides thereof The fixing rails between the limiting nuts are respectively sleeved with a muffling spring, and the sliding sleeve is hinged on the vibration box body, wherein a wire rod segment is hinged in the arc slot.

 The remarkable effect of the optimization of the structure is: by adjusting the slip spacing of the orbital rail assembly in the same device, it is convenient to realize the transformation of different motion trajectories such as circumference, straight line, ellipse, etc., breaking through the prior art The device can only be a limitation of a motion trajectory, and realizes the conversion of three motion trajectories on one vibration exciter to meet the needs of different working conditions; the device functionality is increased and the applicability is wider.

 In a further preferred embodiment, the orbital rail assembly includes an arc adjuster and an orbiting rod, and the arc adjuster is fixed on the base, and the arc adjuster is provided with an arc-shaped slot; A sliding sleeve is sleeved on the railing rod, and a sliding cavity is arranged in the sliding sleeve, and the two ends of the sliding cavity are respectively screwed with the adjusting screw sleeve and the adjusting screw, and the adjusting screw sleeve is internally provided with the sliding cavity a guiding passage which is electrically connected to the guiding passage, and the guiding rail extends through the guiding passage and protrudes into the sliding cavity, the outer sleeve of the adjusting screw sleeve is provided with an upper locking nut, and the outer side of the adjusting screw sleeve is provided with a lower locking nut, and the sliding nut is arranged inside the sliding cavity The sound absorbing and damping pad matched with the fixed rail is arranged, the upper end of the fixed rail is hinged on the vibration box body, and the lower end of the adjusting screw is hinged on the base.

 The performance of the structural scheme is the same as that of the previous structural scheme. What is more advantageous is that the length of the orbiting rail is adjustable, and fine adjustment can be made during installation and debugging or when the working compression time changes the spring compression return performance to ensure that the equipment is always at the most Good state.

In a further preferred embodiment, the orbital rail assembly and the excitation spring are located on the same base, and the rail assembly includes an arcuate guide groove disposed on the base, and a curved guide groove is disposed in the arc guide groove. Curved skateboard, curved skateboard A certain rail is connected to the upper rail, and the other end of the rail is connected to the vibration box through the support shaft; one end of the excitation spring is also connected to the vibration box through the support shaft, and the other end of the excitation spring is fixed on the spring seat, the spring The seat is fixed on the curved skateboard. The vibration box body is supported by the combination of the fixed rail rod and the spring in the fixed rail assembly, and the structure that only uses the spring is changed, so that the fixed rail rod plays a role of supporting, and also changes the original single shaft excitation. The action of the trajectory of the device, and the spring acts as an excitation and accumulator in the excitation.

 More preferably, the excitation spring is perpendicular to the orbital rail.

 The unique structure of the scheme lies in that the fixed rail assembly and the excitation spring are designed on the same base. The remarkable functional characteristics are as follows: 1. The orbital pole shares the bearing capacity of the vibration box, which reduces the bearing load of the spring. This is not available in the above-mentioned various orbital rod structure design; 2. The spring is always in the vertical state when it is under stress and work, that is, it achieves good vibration performance and prolongs the service life of the spring. In the above various orbital rail structure design (including the prior art structure), the springs are vertically arranged. Because the exciting force has a direction angle, the spring is laterally subjected to pressure. After a long time, the spring is easily bent and deformed. The vibration effect will also slowly decrease. This structural design eliminates this drawback.

 In a further preferred embodiment, the orbital rail assembly includes two arc adjusters, two orbiting rails, an upper link and a lower link, and the arc adjuster is fixed on the base, in the arc The shape adjuster is provided with an arc-shaped slot; the upper ends of the two orbiting rods are hinged with the upper link, and the two upper hinge points are located on the vibration box; the lower ends of the two orbiting rods are hinged to the lower link And the two lower hinge points are respectively located in two arc-shaped slots, and the rail-distributing rods are connected with a sliding pitch structure.

More preferably, the slip spacing structure comprises a sliding rod, the sliding rod has a sliding chamber therein, one end of the orbiting rod extends into the sliding chamber, and a silencing rubber pad is arranged in the sliding chamber, and the sliding An external adjusting screw is arranged outside the rod, the sliding rod is fixed by the upper locking nut and the outer adjusting screw, and the other end of the outer adjusting screw is provided with an inner adjusting screw, and one end of the inner adjusting screw hinge is hinged with the lower connecting rod, and is hinged in the arc shape Inside the slot The screw and the outer adjustment screw are locked by a lower lock nut.

 The structural design of the scheme is characterized in that: two parallel rails and upper and lower links form a parallelogram. The unique feature is that when adjusting the vibration direction angle, the two rails are always in parallel, ensuring that the two rails are always in parallel. Good vibration performance.

 In summary:

 The technical highlights of the present invention are as follows: 1. The structure of the single-axis vibration exciter can also be installed and used flatly (that is, the circular motion track also has a vibration direction angle), 2. realize the switching of multiple excitation motion paths in the same machine, 3. External, intuitive and simple excitation direction angle adjustment.

 The advantages of the present invention are as follows: 1. The structure is simplified and the manufacturing cost is greatly reduced. Compared with the biaxial and triaxial structures, the uniaxial structure of the present invention saves one or two sets of expensive excitation shafts, bearings and gears, and the cost of the orbiting rod assembly of the present invention is only 5/1 of the above components. ~1/3, which means that it can save 20~70% of equipment manufacturing costs.

 2. Low power consumption and low operating cost. The excitation shaft is self-contained and runs at high speed, and is a very expensive part. With the fixed rail assembly of the present invention, the operating power consumption can be saved by 1/4 to 1/3.

 3, easy to install, easy to adjust, easy to maintain. The multi-axis exciter structure is complicated to install, especially the adjustment of the directional angle is very difficult. The exciter assembly must be opened, the gears pulled out, the phase angle changed, and then replaced. It takes 3~5 people to complete. In the arc groove structure of the invention, the adjustment direction angle can be operated by a single person and completed quickly.

 4. It is very simple to retrofit old products with the technology of the present invention, that is, the vibrating screen (or feeding machine) of the prior art single-axis vibration exciter can be equipped with a set of orbital rod assemblies, and can be on site. Complete the transformation.

5. The practicability and applicability of the present invention is also that the fixed rail assembly of the single-axis variable path exciter can be designed as a single or multiple sets of structures; the fixed rail assembly can also be used for various structural designs. To meet different sports Description of the requirements for the trajectory and different working conditions

 Figure 1 is a front elevational view of a single-axis variable trajectory exciter of the present invention;

 Figure 2 is a plan view of Figure 1;

 Figure 3 is a schematic view showing another structure of the present invention;

 Figure 4 is a schematic structural view of the orbital rod of Figure 3;

 Figure 5 is a schematic structural view of still another embodiment of the present invention;

 Figure 6 is a schematic view showing still another structure of the present invention;

 Figure 7 is a schematic structural view of the rail of Figure 6;

 Figure 8 is a schematic view showing still another structure of the present invention;

 Figure 9 is a schematic structural view of the orbital rod of Figure 8;

 Figure 10 is a schematic view showing still another structure of the present invention;

 Figure 11 is a schematic view showing still another structure of the present invention;

 Figure 12 is a schematic view showing still another structure of the present invention;

 Figure 13 is a schematic view showing still another structure of the present invention;

 Figure 14 is a schematic view of a linear trajectory (m = 0) of the present invention;

 Figure 15 is a schematic view of an elliptical trajectory (m≠L) of the present invention;

 Figure 16 is a schematic view of a circular trajectory (m = L) of the present invention. Best way to implement the invention

The technical solutions of the present invention will be further specifically described below by way of embodiments and with reference to the accompanying drawings. Example 1:

 As shown in FIGS. 1 and 2, a single-axis variable path exciter includes a vibration box 1, a base 2, and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration box 1, the vibration box 1 and A buffer spring 19 is disposed at four corners between the bases 2, and the excitation shaft 3 is rotated by the motor 21 through the belt 22, and the excitation shaft 3 is an eccentric shaft.

 An obliquely disposed orbiting rod 7 is disposed between the vibrating case 1 and the base 2. The orbiting rods 7 are a pair and are symmetrically arranged on both sides of the vibrating case 1. The orbiting rods 7 are not adjustable in length. Fixed rod.

 The hinge shaft of the lower end of the orbiting lever 7 and the base 2 is disposed in the arcuate slot 5 and is locked by the adjusting nut; the arcuate slot 5 is disposed on the base 4, and the base 4 is disposed on the base 2. During the movement, since the lower end of the orbital lever is locked with a nut, the following fixed point is a center swing.

 The orbiting rod 7 is disposed perpendicular to the fixed axis of the excitation shaft 3, and the upper end of the orbiting rod 7 and the hinge shaft of the vibrating case 1 are disposed on a longitudinal line on which the axis of the excitation shaft 3 is fixed. The acute angle α of the angle between the orbital lever 7 and the horizontal plane of the vibration box 1 is 60°. The vibration direction angle is β, β and the relationship between the orbital rod assembly and the horizontal angle α is β = 90° - ct, and β is 30°. In order to adjust the vibration direction angle for different devices, the orbital lever can be slid into different angles in the arcuate slot 5 and then fixed by adjusting the nut.

 Since the length of the orbiting rod 7 is not adjustable, the slip spacing of the orbiting rod is m=0. As shown in Fig. 14, the moving direction of the spring is shown by the direction of the arrow in Fig. 1, which is a rocking curve. Movement, the movement of the material in the vibration box is a linear path.

 Example 2:

As shown in FIGS. 3 and 4, a single-axis variable path exciter includes a vibration box 1, a base 2, and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration case 1, the vibration case 1 and On the four corners between the bases 2 A buffer spring 19 is provided.

 An orbiting rod 7 is disposed between the vibrating case 1 and the base 2, and the rails 7 are a pair and symmetrically arranged on both sides of the vibrating case 1.

 The orbiting rod 7 is a two-stage threaded rod with opposite threads in opposite directions, which are an upper fixed rail 71 and a lower fixed rod 72, respectively, and the upper fixed rail 71 and the lower fixed rail 72 are connected by a screw sleeve 6; The free end of the rail 71 is hinged to the vibrating case 1 and the free end of the lower rail 72 is hinged to the base 2. The length of the orbital rail can be adjusted by adjusting the distance between the upper and lower rails for different vibration boxes. Since the length of the rails is constant during the adjustment, the slip of the rails is fixed. The spacing m = 0, the motion track in the vibration box is shown in Figure 14.

 The hinge shaft of the lower end of the lower rail bar 72 and the base 2 is disposed in the arcuate slot 5 and locked by the adjusting nut; the arcuate slot 5 is formed on the base 4, and the base 4 is fixed to the base 2.

 The orbiting rod 7 is disposed perpendicular to the fixed axis of the excitation shaft 3, and the upper end of the orbiting rod 7 and the hinge shaft of the vibrating case 1 are disposed on a longitudinal line on which the axis of the excitation shaft 3 is fixed. The acute angle α between the orbital rod 7 and the horizontal plane of the vibration box 1 is 45 degrees. The vibration direction angle is β, β and the relationship between the orbital rod assembly and the horizontal angle α is β = 90° - α and β is 45°.

 Example 3:

As shown in FIG. 5, a single-axis variable path vibration exciter includes a vibration box body 1, a base 2 and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration box body 1, the vibration box body 1 and the base 2 A buffer spring 19 is disposed between the four corners. The orbiting lever 7 is a straight rod, and the upper end of the railing rod 7 is sleeved in the sliding sleeve 8, and the sliding sleeve 8 is hinged on the vibrating casing 1. The lower end of the orbiting rod 7 is hinged on the base 2, and the orbiting rod 7 can be moved in the sliding sleeve, and the sliding distance m of the orbiting rod can be adjusted, as shown in Fig. 15, when m=L, the motion track is round, When m≠L (see Figure 16), the motion trajectory is an ellipse. The orbital lever and the sliding sleeve are slidably engaged, that is, the orbital The length of the rod is arbitrary and can be easily accommodated to any length within the size of the factory. The rest is the same as in Embodiment 2.

 Example 4:

 As shown in FIGS. 6 and 7, a single-axis variable path exciter includes a vibration case 1, a base 2, and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration case 1, the vibration case 1 and A buffer spring 19 is disposed at four corners between the bases 2.

 The upper end of the orbiting rod 7 is sleeved in the sliding sleeve 8; the sliding sleeve 8 is hinged on the vibrating case 1 and the lower end of the orbiting rod 7 is hinged to the base 2.

 The orbiting rod 7 is provided with a section of the optical rod segment 20, the two ends of the rod portion 20 are threaded rod segments having external threads, the diameter of the rod portion 20 is larger than the diameter of the rod portion, and the length of the rod portion 20 is smaller than the length of the sleeve, the polished rod The segment 20 is sleeved in the sliding sleeve 8, and a pair of the limiting nut 9 and the lock nut 10 are respectively arranged on the screw segments at both ends of the polished rod segment 20, and the orbital between the sliding sleeve 8 and the limiting nut 9 on both sides thereof A muffler spring 11 is respectively sleeved on the rod segments. During the movement, the sliding sleeve is fixed, the orbiting rod moves in the sliding sleeve, compresses or lengthens the muffling spring, and forms a slip spacing m. As shown in Figure 15, when m = L, the motion trajectory is a circle, and when m ≠ L (see Figure 16), the motion trajectory is an ellipse. The orbital lever and the sliding sleeve are slidably fitted, that is, the length of the orbiting rail is arbitrary, and it is convenient to meet any length requirement within the size during factory installation.

 The rest are the same as in the third embodiment.

 Example 5

 As shown in FIG. 8 and FIG. 9, a single-axis variable path vibration exciter includes a vibration box body 1, a base 2 and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration box body 1, and the vibration box body 1 is provided. A buffer spring 19 is disposed at four corners between the base and the base 2. An inclined rail assembly is disposed between the base and the vibration box.

The orbiting rod assembly includes a certain rail rod, and the rail adjusting rod 7 and the sliding guide rod 32 form a pair of motion pairs, which can be extended The sliding guide is inserted into the outer adjusting screw 34. The slip spacing m value can be adjusted by the advance and retreat of the thread. As shown in Fig. 15, when m = L, the motion trajectory is a circle, and when m ≠ L (see Fig. 16), the motion trajectory is an ellipse. The orbital lever and the sliding sleeve are slidably engaged, that is, the length of the orbital rail is arbitrary, and it is convenient to meet any length requirement within the size of the factory when installed at the factory. The inner adjustment screw 37 is screwed to the lower portion of the outer adjustment screw 34, and the total length of the telescopic rod 3 can be adjusted by screwing in and out to achieve an optimum position during installation adjustment. The upper lock nut 33 and the lower lock nut 36 need to be loosened before adjustment, and then locked after adjustment. The muffler rubber pad 35 functions to eliminate the hitting sound.

 The rest are the same as in the third embodiment.

 Example 6:

 As shown in FIG. 10, a single-axis elliptical motion path exciter includes a vibration box body 1, a base 2, an excitation spring 19, and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration box body 1; A spring 19 is disposed at the four corners between the vibrating case 1 and the base 2.

 The vibrating case 1 is provided with three sets of fixed rail assemblies, and each set of fixed rail assemblies is symmetrically arranged on both sides of the vibrating case 1. The rail assembly includes a rail 7 and a sleeve 8; the upper end of the rail 7 is sleeved in the sleeve 8, and the sleeve 8 is hinged to the vibrating case 1, as shown in FIG.

 The lower end of the orbiting rod 7 is hinged on the base 2, and the base 2 is provided with a base 4, and the base 4 is provided with an arcuate slot 5, and the hinge shaft of the lower end of the railing rod 7 and the base 2 is disposed in the arc slot 5 It is locked by the adjusting nut 51.

 The orbiting bars 7 are arranged in an inclined manner and arranged in an array and the rails 7 are arranged perpendicular to the fixed axis of the excitation shaft 3.

The sliding sleeve 8 of the orbital mechanism in the intermediate position in the orbital mechanism on the same side of the vibrating case 1 and the hinge shaft of the vibrating case 1 are disposed on the longitudinal line of the fixed axis of the excitation shaft 3, other orbital Rod 7 is symmetrically arranged with the longitudinal line where the excitation shaft 3 is fixed.

 The angle between the orbital lever 7 and the horizontal plane is 30 degrees, the angle is ct, the vibration direction angle β and the relationship between the extension rod and the horizontal angle α are β = 90° - ct. The rest is the same as that of Embodiment 4. Of course, the structure of the orbiting rod assembly in this embodiment may be any one of Embodiments 1 to 5, thereby forming different motion trajectories.

 Example 7

 As shown in Fig. 11, a single-axis elliptical motion path exciter is provided with four sets of fixed rail assemblies on the vibration box body 1, and each set of the fixed rail rod assemblies is symmetrically arranged on both sides of the vibration box body 1. The orbital assembly includes a rail 7 and a sleeve 8.

 The rails 7 on the same side of the vibrating case 1 are symmetrically arranged centering on the longitudinal line where the excitation shaft 3 is fixed. The rest is the same as in Embodiment 6.

 Example 8

 As shown in FIG. 12, a single-axis linear motion trajectory excitation device includes a vibration box body 1, a base 2, and an excitation shaft 3, and the excitation shaft 3 is disposed on the vibration box body 1, the vibration box body 1 and the base 2 A base 4 in which a certain rail assembly and an excitation spring 19 are integrated is disposed on each of the four corners.

 The orbital rail assembly includes an arcuate guide groove 41 disposed on the base 4, and an arcuate slide plate 42 is disposed in the arcuate guide groove 41. The arcuate slide plate 42 is connected with a certain rail rod 7 for orbit determination. The other end of the rod 7 is connected to the vibration case 1 via a support shaft 43.

The structure of each of the orbital mechanisms is as follows: The support shaft 43 is fixed to the support base 44 on the vibration case 1. The orbiting rod 7 is disposed obliquely between the vibrating case 1 and the base 2. The upper end of the orbiting rod 7 is vertically hinged on the support shaft 43, and the lower end is hinged on the curved slide plate 42, and the orbiting rod 7 is perpendicular to the excitation shaft 3 fixed axis line setting. The upper end of the excitation spring 19 is also vertically hinged to the support shaft 43, and the lower end is fixed to the curved slider 42 by a spring seat 45. The orbiting lever 7 and the excitation spring 19 are arranged vertically.

 An arcuate guide groove 41 is provided on the base 4, and the arcuate slide plate 42 is disposed in the arcuate guide groove 41 and locked by the lock bolt 46.

 The length of the orbiting rod is not adjustable, the sliding distance of the orbiting rod is m=0, and the movement of the material in the vibrating box is straight.

 Example 9

 As shown in FIG. 9 and FIG. 13 , a single-axis variable path vibration exciter includes a vibration box body 1 , a base 2 and an excitation shaft 3 . The excitation shaft 3 is sleeved with a pulley 53 , and the excitation shaft 3 passes through The bearing housing 54 is fixed on the vibration box body 1. A buffer spring 19 is disposed at four corners between the vibration box body 1 and the base 2. The excitation shaft 3 is rotated by the motor 21 through the belt 22, and the excitation shaft 3 is an eccentricity. axis.

 An obliquely arranged orbiting rod assembly is further disposed between the vibrating case 1 and the base 2. The orbiting rod assembly includes an arc adjuster, an orbiting rod, an upper link and a symmetrically arranged on both sides of the vibrating box body. The lower link is provided with two curved adjusters, two fixed rails 7, two upper links 52 and two lower links 51 on each side. The orbiting rod 7, the upper link 52 and the lower link 51 constitute a hinged four-bar mechanism. The curved adjuster includes a base 4 having an arcuate slot 5 formed therein, and the base 4 is fixed to the base 2. The upper ends of the two orbiting rods 7 are hinged to the upper link 52, and the two upper hinge points are located on the vibration box body 1; the lower ends of the two orbiting rods 7 are hinged to the lower link 51, and the two lower hinges are hinged. The points are located in two arcuate slots 5, respectively.

 As shown in the figure, the direction A is the material transport direction, the B direction is the direction of the linear motion of the orbital rail, that is, the m distance direction that can be adjusted, and the C direction is the direction of the swing arc motion, that is, the L distance adjustment. direction.

The orbital rod is adjustable in length, and the mechanism is as shown in FIG. 9. The orbiting rod 7 and the sliding guide rod 32 are composed. A pair of motion pairs, telescopic slip, and the slip guide 32 are nested inside the outer adjustment screw 34. The slip spacing _m value can be adjusted by the advance and retreat of the thread. As shown in Fig. 15, when m = L, the motion trajectory is a circle, and when m ≠ L (see Fig. 16), the motion trajectory is an ellipse. The orbital lever and the sliding sleeve are slidably engaged, that is, the length of the orbital rail is arbitrary, and it is convenient to meet any length requirement within the size of the factory when installed at the factory. The inner adjustment screw 37 is screwed to the lower portion of the outer adjustment screw 34, and the total length of the telescopic rod 3 can be adjusted by screwing in and out to achieve an optimum position during installation adjustment. The upper lock nut 33 and the lower lock nut 36 need to be loosened before adjustment, and then locked after adjustment. The muffler rubber pad 35 functions to eliminate the hitting sound.

Claims

Rights request  A single-axis variable path vibration exciter comprising a vibration box body, a base, an excitation spring and an excitation shaft, wherein the excitation shaft is disposed on the vibration box body; the excitation spring is disposed between the vibration box body and the base The utility model is characterized in that: a plurality of sets of obliquely arranged orbital rail assemblies are arranged on both sides of the vibration box body, and each set of the rail fixing rod assemblies comprises two fixed rail rods symmetrically arranged on two sides of the vibration box body The assembly, the two ends of each of the fixed rail assemblies are respectively hinged on the vibration box body and the base.  The uniaxial variable trajectory exciter according to claim 1, wherein: the number of sets of the fixed rail assembly is an odd array, wherein the total number of fixed rails on the same side of the vibration box The upper end hinge of the fixed rail assembly in the middle position is disposed on the longitudinal line of the fixed axis of the excitation shaft, and the other fixed rail assemblies are symmetrically arranged with the longitudinal line of the excitation shaft fixed axis.  3 . The uniaxial variable trajectory exciter according to claim 1 , wherein: the number of sets of the fixed rail assembly is an even array, and the fixed rail assembly on the same side of the vibration box body. It is symmetrically arranged centering on the longitudinal line where the excitation shaft fixed axis is located.  The uniaxial variable trajectory exciter according to claim 1, wherein an acute angle between the fixed rail assembly and the horizontal plane of the vibration box is in an angle of 30 to 60 degrees.  The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and an arc-shaped slot is formed in the arc adjuster, and one end of the fixed rail is hinged in the arc slot, and the other end of the rail is hinged on the vibration box. The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and the curved adjuster is provided with an arc-shaped slot; the orbital rail includes an upper rail and a lower rail. The outer circumferential surfaces of the upper and lower rails are provided with threads and the upper and lower rails are threaded in opposite directions. A screw sleeve is arranged at the joint of the upper and lower rails, and one end of the upper rail is hinged to the vibration box. The other end of the rail is located in the screw sleeve, one end of the lower rail is hinged in the arc slot, and the other end of the lower rail is located in the screw sleeve.  The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and the curved adjuster is provided with a curved slot; the fixed rail includes a light rod, and the sliding sleeve is sleeved on the light rod; the sliding sleeve is hinged on the vibration box body, the light rod Hinged in a curved slot.  The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and the curved adjuster is provided with a curved slot; the fixed rail includes a light rod, and a threaded rod segment is arranged at each end of the polished rod, and the sliding rod is sleeved on the polished rod The diameter of the polished rod section is larger than the diameter of the screw rod section, the length of the polished rod section is smaller than the length of the sliding sleeve, and the combination of a set of limiting nut and the lock nut is respectively arranged on the screw section of the both ends of the polished rod section, and the sliding sleeve and the two sides thereof The fixing rails between the limiting nuts are respectively sleeved with a muffling spring, and the sliding sleeve is hinged on the vibration box body, wherein a wire rod segment is hinged in the arc slot. The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the orbital rail assembly comprises an arc adjuster and an orbiting rod, the arc The shape adjuster is fixed on the base, and an arc-shaped slot is formed in the arc adjuster; a sliding sleeve is sleeved on the fixed rail rod, and a sliding cavity is arranged in the sliding sleeve, and the two ends of the sliding cavity are respectively threaded The adjusting screw sleeve and the adjusting screw are coupled, and the adjusting screw sleeve is internally provided with a guiding passage that is electrically connected to the sliding cavity, and the railing rod extends through the guiding channel and extends into the sliding cavity, and the outer sleeve of the adjusting screw sleeve is arranged There is a locking nut, the outer sleeve of the adjusting screw is provided with a lower locking nut, and a sound absorbing damping pad matched with the fixed rail is arranged in the sliding cavity, and the upper end of the fixed rail is hinged on the vibration box, and the adjusting The lower end of the screw is hinged to the base.  The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the fixed rail assembly and the excitation spring are located on the same base, and the fixed rail assembly The utility model comprises an arc-shaped guide groove disposed on the base, an arc-shaped slide plate is arranged in the arc-shaped guide groove, a certain rail rod is connected to the arc-shaped slide plate, and the other end of the rail-displacement rod is connected to the vibration box body through the support shaft; One end of the excitation spring is also connected to the vibration box through the support shaft, and the other end of the excitation spring is fixed on the spring seat, and the spring seat is fixed on the arc slide.  11. The uniaxial variable trajectory exciter of claim 10, wherein: the excitation spring is perpendicular to the orbital rail.  The uniaxial variable trajectory exciter according to any one of claims 1 to 4, wherein: the orbital rail assembly comprises two curved adjusters, two fixed rails, and upper a connecting rod and a lower connecting rod, wherein the curved adjuster is fixed on the base, and the curved adjusting device is provided with an arc-shaped slot; the upper ends of the two fixed-rail rods are hinged with the upper connecting rod, and two The hinge point is located on the vibration box body; the lower ends of the two orbiting rods are hinged to the lower link, and the two lower hinge points are respectively located in the two arc-shaped slots, and the fixed rail rod is connected with the sliding pitch structure.  13. The uniaxial variable trajectory exciter according to claim 12, wherein: the slip spacing structure comprises a sliding rod, the sliding rod has a sliding chamber therein, and one end of the orbiting rod extends In the sliding chamber, a sound-reducing rubber pad is arranged in the sliding chamber, and an external adjusting screw is arranged outside the sliding rod, the sliding rod is fixed by the upper locking nut and the outer adjusting screw, and the other end of the outer adjusting screw is internally adjusted. The screw, the hinged end of the inner adjustment screw is hinged to the lower link, and is hinged in the arc slot, and the inner adjustment screw and the outer adjustment screw are locked by the lower lock nut.