CN117703370B - Guard board device and coal mining machine - Google Patents
Guard board device and coal mining machine Download PDFInfo
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- CN117703370B CN117703370B CN202410159947.0A CN202410159947A CN117703370B CN 117703370 B CN117703370 B CN 117703370B CN 202410159947 A CN202410159947 A CN 202410159947A CN 117703370 B CN117703370 B CN 117703370B
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- mount
- connecting rod
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- 239000003245 coal Substances 0.000 title abstract description 24
- 238000005065 mining Methods 0.000 title abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000006378 damage Effects 0.000 abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/04—Safety devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention relates to the technical field of mineral exploitation, in particular to a guard plate device and a coal mining machine. The guard plate device includes: a first mount; the second installation seat is rotationally connected with a first supporting rod; the guard plate is hinged with the first mounting seat and is provided with a support rod mounting seat, and the support rod mounting seat is rotationally connected with a second support rod; a connecting piece; the hydraulic cylinder, the both ends of pneumatic cylinder are connected with a connecting piece respectively, and the pneumatic cylinder is used for adjusting the angle of backplate through adjusting the distance between two connecting pieces, and every connecting piece in two connecting pieces is connected with a head rod and a second connecting rod, and the both ends of every head rod are articulated with second bracing piece and a connecting piece respectively, and the both ends of every second connecting rod are articulated with first bracing piece and a connecting piece respectively. The hydraulic cylinder damage probability can be reduced, and the service life of the guard plate device is prolonged.
Description
Technical Field
The invention relates to the technical field of mineral exploitation, in particular to a guard plate device and a coal mining machine.
Background
In the mining process of the coal mining machine, flying of objects such as gangue, coal blocks and the like can occur, and equipment damage and personnel injury can be caused.
In the related art, in order to prevent equipment damage and personnel injury, a guard plate may be provided for the shearer, and the guard plate is used for blocking objects such as gangue, coal blocks, and the like. The guard plate is directly connected with the hydraulic cylinder to adjust the position of the guard plate through the extension and contraction of the hydraulic cylinder. Because the guard plate is directly connected with the hydraulic cylinder, the hydraulic cylinder directly bears the acting force from the guard plate, so that the hydraulic cylinder is more easily damaged.
Therefore, there is a need to design a shield apparatus and a shearer to reduce the probability of damage to the hydraulic cylinder.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
Therefore, the invention provides the guard plate device, the second connecting rod and the hydraulic cylinder share the acting force from the guard plate, even in a specific state, the hydraulic cylinder does not need to bear the acting force from the guard plate, and the stress at the two ends of the hydraulic cylinder can be uniform through the two connecting pieces; therefore, the protection plate device can reduce the damage probability of the hydraulic cylinder. The invention further provides a coal mining machine.
According to a first aspect of the present invention, there is provided a fender device comprising: a first mount; the second installation seat is rotationally connected with a first supporting rod, and two ends of the first supporting rod are respectively rotationally connected with one second installation seat; the guard plate is hinged with the first mounting seat and is provided with a support rod mounting seat, the support rod mounting seat is rotationally connected with a second support rod, and two ends of the second support rod are respectively rotationally connected with one support rod mounting seat; a connecting piece; the hydraulic cylinder, the both ends of pneumatic cylinder are connected with a connecting piece respectively, and the pneumatic cylinder is used for adjusting the angle of backplate through adjusting the distance between two connecting pieces, and every connecting piece in two connecting pieces is connected with a head rod and a second connecting rod, and the both ends of every head rod are articulated with second bracing piece and a connecting piece respectively, and the both ends of every second connecting rod are articulated with first bracing piece and a connecting piece respectively.
Optionally, when the first connecting rod and the second connecting rod are in the same straight line, the first connecting rod and the second connecting rod are perpendicular to the hydraulic cylinder respectively.
Optionally, the first mounting seat is hinged with the guard board through a pin shaft, and a first check ring is sleeved on the pin shaft and used for limiting the axial movement of the pin shaft; the first supporting rod is sleeved with a second check ring, and the second check ring is used for limiting the axial movement of the first supporting rod.
Optionally, the first mounting seat and the second mounting seat are respectively fixedly connected with the coal mining machine.
Optionally, the first mounting base is connected with the coal mining machine through a first fastening piece, and the second mounting base is connected with the coal mining machine through a second fastening piece.
Optionally, a first of the two connectors is connected with a free end of the hydraulic cylinder and a second of the two connectors is connected with a fixed end of the hydraulic cylinder.
Optionally, the guard plate device further includes: and the pressure sensor is arranged in the hydraulic cylinder and is used for sensing the pressure in the hydraulic cylinder.
Optionally, the guard plate device further includes: the controller is connected with the pressure sensor and is used for receiving the pressure sensed by the pressure sensor, judging whether the pressure exceeds a pressure threshold value or not, and generating an alarm instruction when the pressure exceeds the pressure threshold value; and the alarm is connected with the controller and used for alarming when receiving the alarm instruction.
Optionally, the guard plate device further includes: and the inclination angle sensor is connected with the guard plate and used for sensing the angle of the guard plate.
According to a second aspect of the present invention there is provided a shearer comprising: the fender assembly of the first aspect or its various implementations.
One of the above technical solutions has the following advantages or beneficial effects:
for a guard plate device of the present invention, a first mount, a second mount, a guard plate, a connecting member, and a hydraulic cylinder may be provided. The guard plate is used for protecting, can be hinged with the first mounting seat, and can be lifted and lowered by changing the angle of the guard plate. The guard plate is not directly connected to the hydraulic cylinder but is connected to the hydraulic cylinder by a connecting piece. The connecting piece is connected with the first connecting rod, the second connecting rod and the hydraulic cylinder respectively. The backplate can transmit the effort to the head rod, and the effort of backplate has been shared to pneumatic cylinder and second connecting rod, and the second connecting rod still is connected with the second mount pad to with effort transmission for the second mount pad. The acting force from the guard plate is shared by the second connecting rod and the hydraulic cylinder, so that the acting force born by the hydraulic cylinder can be reduced, the damage probability of the hydraulic cylinder is reduced, and the service life of the hydraulic cylinder is prolonged. The hydraulic cylinder can be arranged between the two connecting pieces, so that the stress at the two ends of the hydraulic cylinder is uniform, and the damage probability of the hydraulic cylinder is further reduced. The guard plate device can enable the extending direction of the hydraulic cylinder to be parallel to the guard plate, and interference in the operation process is reduced. The first connecting rod and the second connecting rod can be perpendicular to the hydraulic cylinder respectively, so that the hydraulic cylinder does not need to bear acting force from the guard plate, and the service life of the hydraulic cylinder is further prolonged.
The coal mining machine provided by the invention comprises the guard plate device, and the coal mining machine comprising the guard plate device has corresponding technical effects because the guard plate device has the technical effects.
Drawings
FIG. 1 shows a schematic side view of a fender assembly according to one embodiment of the invention;
fig. 2 shows a schematic perspective view of a fender device according to an embodiment of the invention.
Reference numerals illustrate:
10-first mount, 20-second mount, 21-first support bar, 30-guard plate, 31-support bar mount, 32-second support bar, 40-connecting piece, 41-first connecting rod, 42-second connecting rod, 50-hydraulic cylinder, 61-pin, 62-first retainer ring, 63-second retainer ring, 71-first fastener, 72-second fastener.
Detailed Description
In the related art, a shield may be provided for the shearer to prevent equipment damage and personnel injury. When the guard plate is directly connected with the hydraulic cylinder, the angle between the guard plate and the horizontal plane can be adjusted through the expansion and contraction of the hydraulic cylinder, so that the guard plate can be lifted and lowered. The guard plate can directly transmit acting force to the hydraulic cylinder, does not share acting force received by the hydraulic cylinder, and increases damage probability of the hydraulic cylinder. One end of the hydraulic cylinder is generally connected with the body of the coal mining machine, and the other end of the hydraulic cylinder is connected with the guard plate, so that the stress at the two ends of the hydraulic cylinder is uneven, and the damage probability of the hydraulic cylinder is further increased. The angle of the shield is typically determined by manual observation and the pressure in the cylinder is determined empirically. This leads to problems of reduced efficiency, increased labor costs, and inaccurate angle and pressure judgment results.
In order to at least solve one of the technical problems in the prior art or related technologies, the invention provides a guard plate device and a coal mining machine. A shield apparatus and a shearer according to some embodiments provided by the present invention are described below with reference to fig. 1 and 2.
Referring to fig. 1 and 2, one embodiment of the present invention provides a fender apparatus including: a first mount 10; the second mounting seat 20 is rotatably connected with a first supporting rod 21, and two ends of the first supporting rod 21 are respectively rotatably connected with one second mounting seat 20; the guard plate 30 is hinged with the first mounting seat 10 and is provided with a support rod mounting seat 31, the support rod mounting seat 31 is rotatably connected with a second support rod 32, and two ends of the second support rod 32 are respectively rotatably connected with one support rod mounting seat 31; a connecting member 40; the hydraulic cylinder 50, both ends of the hydraulic cylinder 50 are respectively connected with one connecting piece 40, the hydraulic cylinder 50 is used for adjusting the angle of the guard plate 30 by adjusting the distance between the two connecting pieces 40, each connecting piece 40 in the two connecting pieces 40 is connected with a first connecting rod 41 and a second connecting rod 42, both ends of each first connecting rod 41 are respectively hinged with the second supporting rod 32 and one connecting piece 40, and both ends of each second connecting rod 42 are respectively hinged with the first supporting rod 21 and one connecting piece 40.
The angle between the shield 30 and the horizontal plane is understood to be the angle of the shield 30. One end of the guard plate 30 may be hinged to the first mounting base 10, and the other end of the guard plate 30 is a free end of the guard plate 30, and a distance between the free end of the guard plate 30 and a horizontal plane may be used to determine lifting and lowering of the guard plate 30. Specifically, when the distance between the free end of the shield plate 30 and the horizontal plane is gradually increased, it can be determined that the shield plate 30 is during the lifting, and when the distance between the free end of the shield plate 30 and the horizontal plane is gradually decreased, it can be determined that the shield plate 30 is during the lowering. As the shield 30 is raised or lowered, the angle of the shield 30 is also changed. Through backplate 30, can protect, prevent objects such as gangue, coal cinder, reduce personnel's injury and equipment harm.
It should be further noted that two hydraulic cylinders 50 may be provided as shown in fig. 2, and the raising operation and the lowering operation of the apron 30 may be performed by the two hydraulic cylinders 50. Of course, this is merely exemplary, and the raising and lowering of the apron 30 may be performed by three or more hydraulic cylinders 50. The first mount 10 and the second mount 20 may be relatively fixed, that is, the first mount 10 may be fixed and the second mount 20 may be fixed so as to reduce or even avoid relative movement between the first mount 10 and the second mount 20. When the first mount 10 and the second mount 20 are relatively fixed, the stability of the apron apparatus can be improved.
In an exemplary embodiment, the first mount 10 and the second mount 20 may be fixedly connected with the shearer, respectively. By fixing the first mount 10 and the second mount 20, the extending direction of the hydraulic cylinder 50 can be made parallel to the plane of the guard plate 30. The guard plate 30 may be provided as a multi-layer plate to enhance the protective effect. The mount may also be referred to herein as a mounting, for example, the first mount 10 may be referred to as a first mounting, and the second mount 20 may be referred to as a second mounting. The articulation in the exemplary embodiment is understood to be a rotational connection. The connecting member 40 may also be referred to as a middleware. Each hydraulic cylinder 50 may correspond to two connecting members 40, and the two connecting members 40 may be symmetrically disposed. The connecting rods may also be referred to as connecting frames, for example, the first connecting rod 41 may be referred to as a first connecting frame and the second connecting rod 42 may be referred to as a second connecting frame. The first connecting rod 41 may be provided at both ends with corresponding mounting holes, respectively, and the second connecting rod 42 may be provided at both ends with corresponding mounting holes, respectively, and the hinge may be achieved by a column passing through the mounting holes.
In an exemplary embodiment, both ends of the hydraulic cylinder 50 may be a free end and a fixed end, respectively, an end of the hydraulic cylinder 50 having a telescopic rod may be referred to as a free end, and an end of the hydraulic cylinder 50 having no telescopic rod may be referred to as a fixed end. By the action of the hydraulic pressure within the hydraulic cylinder 50, the hydraulic cylinder 50 may be extended or shortened, and the extension of the hydraulic cylinder 50 may be understood as an increase in the distance between the free end of the hydraulic cylinder 50 and the fixed end of the hydraulic cylinder 50, and the shortening of the hydraulic cylinder 50 may be understood as an increase in the distance between the free end of the hydraulic cylinder 50 and the fixed end of the hydraulic cylinder 50. An oil path connected with the hydraulic cylinder 50 can be further arranged, hydraulic oil can be conveyed to the hydraulic cylinder 50 through the oil path, when the hydraulic oil enters the hydraulic cylinder 50, the pressure in the hydraulic cylinder 50 is increased, and the hydraulic cylinder 50 stretches; when the hydraulic oil flows out of the hydraulic cylinder 50, the pressure in the hydraulic cylinder 50 decreases, and the hydraulic cylinder 50 shortens. The free or fixed end of the hydraulic cylinder 50 may be connected to the connecting member 40, and the connection between the hydraulic cylinder 50 and the connecting member 40 may be hinged or fixed. When the telescopic rod of the hydraulic cylinder 50 is extended from the body of the hydraulic cylinder 50, the overall length of the hydraulic cylinder 50 becomes longer, and accordingly, the distance between the two connection members 40 increases. When the distance between the two connecting members 40 increases, the extending directions of the first connecting rod 41 and the second connecting rod 42 change, and the included angle between the first connecting rod 41 and the second connecting rod 42 also changes, so that the guard plate 30 is supported by the first connecting rod 41 and the second connecting rod 42 to rotate, for example, the guard plate 30 rotates around the pin 61, thereby achieving the purpose of lifting the guard plate 30. Correspondingly, when the telescopic rod of the hydraulic cylinder 50 retracts into the hydraulic cylinder 50 body, the whole length of the hydraulic cylinder 50 is shortened; the distance between the two connecting members 40 is reduced and the guard plate 30 is lowered by the first and second connecting rods 41 and 42. In this way, the angle of the guard plate 30 is changed, the guard plate 30 is lifted and lowered, and convenience is provided for protecting the coal mining machine.
In an exemplary embodiment, two connectors 40 may be provided. The two connecting pieces 40 are symmetrically arranged, so that the stress on the two ends of the hydraulic cylinder 50 is relatively balanced, and the damage probability of the hydraulic cylinder 50 is reduced. The guard plate 30 can transmit the acting force to the first connecting rod 41, and the acting force received by the first connecting rod 41 can be shared with the hydraulic cylinder 50 and the second connecting rod 42, so that the acting force of the hydraulic cylinder 50 is further reduced, and the hydraulic cylinder 50 cannot receive the acting force from the guard plate 30 under the specific condition described below, so that the service life of the hydraulic cylinder 50 can be prolonged, and correspondingly, the service lives of the protecting device and the coal mining machine can be prolonged.
Further, when the first connecting rod 41 and the second connecting rod 42 are in the same straight line, the first connecting rod 41 and the second connecting rod 42 are perpendicular to the hydraulic cylinder 50, respectively.
In an exemplary embodiment, as the overall length of hydraulic cylinder 50 changes, the angle between first connecting rod 41 and second connecting rod 42 may change. When the angle between the first connecting rod 41 and the second connecting rod 42 is 180 degrees, the first connecting rod 41 and the second connecting rod 42 are in the same straight line. In case the first connecting rod 41 and the second connecting rod 42 are in the same straight line, the straight line may also be perpendicular to the guard plate 30, that is, the extending direction of the first connecting rod 41 may be perpendicular to the guard plate 30, and the extending direction of the hydraulic cylinder 50 may be perpendicular to the straight line, that is, the extending direction of the hydraulic cylinder 50 may be perpendicular to the extending direction of the first connecting rod 41 and the extending direction of the second connecting rod 42, respectively. In this case, the force of the guard plate 30 directly acts on the first and second connection rods 41 and 42, the hydraulic cylinder 50 is not subjected to the force from the guard plate 30, and the safety of the hydraulic cylinder 50 is further improved.
Further, the first mounting seat 10 is hinged with the guard plate 30 through a pin shaft 61, a first check ring 62 is sleeved on the pin shaft 61, and the first check ring 62 is used for limiting the axial movement of the pin shaft 61; the first supporting rod 21 is sleeved with a second check ring 63, and the second check ring 63 is used for limiting the axial movement of the first supporting rod 21.
In the exemplary embodiment, the first check ring 62 limits the axial movement of the pin 61, so that the probability of detachment of the pin 61 from the first mounting seat 10 can be reduced, the probability of detachment of the pin 61 from the guard plate 30 can be reduced, the stability of the protection device can be improved, and the manual maintenance cost can be reduced. The detachable connection can be realized through the pin shaft 61 and the first check ring 62, and compared with the non-detachable connection, the detachable connection has the advantage of convenient installation and detachment. Similarly, by providing the second retainer ring 63, the probability of detachment of the first support rod 21 from the second mount 20 can be reduced, and there can be an advantage in that the mounting and dismounting are convenient.
Further, the first mounting seat 10 and the second mounting seat 20 are respectively fixedly connected with the coal mining machine.
In an exemplary embodiment, the shearer may be a mine mining apparatus, for example, the shearer may have mounting beams, brackets, mounting plates, etc., to which the first mount 10 may be secured, and to which the second mount 20 may also be secured. Of course, the first mount 10 and the second mount 20 may be fixed on the same component or on different components. Through fixing first mount pad 10 to fix second mount pad 20, can restrict the relative movement between first mount pad 10 and the second mount pad 20, make protector more firm, the effort from backplate 30 accessible first mount pad 10 and second mount pad 20 transmit for the coal-winning machine, realized the effective support of backplate 30.
Further, the first mount 10 is connected to the shearer via a first fastener 71, and the second mount 20 is connected to the shearer via a second fastener 72.
In the exemplary embodiment, a removable connection of first mount 10 to the shearer is made via first fastener 71 and a removable connection of second mount 20 to the shearer is made via second fastener 72. Through detachable connection, can provide convenience for installation and dismantlement. The first fastener 71 may be implemented by a bolt, and the second fastener 72 may be implemented by a bolt. In order to install the first fastener 71 and the second fastener 72, bolt holes may be formed in the first mount 10, the second mount 20, and the shearer, respectively. The first fastening piece 71 is inserted into the corresponding bolt hole, so that the first mounting seat 10 and the coal mining machine can be fixedly connected, and correspondingly, the second fastening piece 72 is inserted into the corresponding bolt hole, so that the second mounting seat 20 and the coal mining machine can be fixedly connected.
Further, a first one of the two connection members 40 is connected to a free end of the hydraulic cylinder 50, and a second one of the two connection members 40 is connected to a fixed end of the hydraulic cylinder 50.
In an exemplary embodiment, the two connection members 40 may be symmetrically disposed, and each connection member 40 may be connected with a corresponding first connection rod 41 and second connection rod 42. By providing two symmetrical connecting pieces 40, the two ends of the hydraulic cylinder 50 can be uniformly stressed, and damage caused by uneven stress is reduced.
Further, the guard plate device further includes: a pressure sensor is provided in the hydraulic cylinder 50 for sensing the pressure in the hydraulic cylinder 50.
In an exemplary embodiment, the pressure sensor of the guard may be implemented with a known type of sensor. By providing a pressure sensor, the pressure in the hydraulic cylinder 50 can be automatically sensed without performing artificial pressure judgment, and errors caused by the artificial pressure judgment can be reduced. By arranging the pressure sensor, real-time pressure monitoring can be performed, and high labor cost brought by manual monitoring is reduced. By arranging the pressure sensor, the intelligent degree is improved, countermeasures can be timely taken according to pressure conditions, and production delay caused by pressure abnormality is reduced.
Further, the guard plate device further includes: the controller is connected with the pressure sensor and is used for receiving the pressure sensed by the pressure sensor, judging whether the pressure exceeds a pressure threshold value or not, and generating an alarm instruction when the pressure exceeds the pressure threshold value; and the alarm is connected with the controller and used for alarming when receiving the alarm instruction.
In an exemplary embodiment, the controller may be implemented using a programmable logic controller (Programmable Logic Controller, PLC) or the like. The controller may receive the pressure sensed by the pressure sensor and determine the pressure. Pressure sensing and pressure determination may be performed in real time. The pressure threshold value may be set in advance, and when the pressure exceeds the pressure threshold value, damage to the hydraulic cylinder 50 or abnormality of the hydraulic cylinder 50 may be caused. In order to avoid damage to the hydraulic cylinder 50 or abnormality of the hydraulic cylinder 50, pressure judgment may be made. When an alarm instruction is generated, the alarm can receive the alarm instruction. The alarm can be realized through a loudspeaker, a buzzer, an indicator lamp and the like, the loudspeaker can give out warning sound, the buzzer can give out a sound, and the indicator lamp can display a red light. By the mode, workers can be reminded of timely taking measures, and loss generation and even loss expansion are avoided. Correspondingly, the safety can be improved, and the potential safety hazard is reduced. Through the automatic alarm operation that carries out, can improve work efficiency, reduce the human cost.
Further, the guard plate device further includes: and an inclination sensor connected to the guard plate 30 for sensing an angle of the guard plate 30.
In an exemplary embodiment, the tilt sensor may be implemented by a known angle sensor, which may be used to sense the angle between the shield 30 and the horizontal plane. Through the sensing of the angle, the working state of the guard plate 30 can be known in time, so that corresponding adjustment can be adopted according to the actual use situation, and the device has the advantages of convenience and flexibility.
In another embodiment, a shearer is provided that includes the shield apparatus of the embodiments.
Since the coal mining machine provided by the exemplary embodiment includes the guard plate device of any one of the foregoing exemplary embodiments, the coal mining machine has all the beneficial effects of the guard plate device provided by any one of the foregoing exemplary embodiments, and the implementation manner of the coal mining machine can be realized by referring to the guard plate device embodiment, which is not repeated herein.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," "specific examples," or "some examples," etc., refer to a particular feature, structure, material, or characteristic described in connection with the embodiment or example as being included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (10)
1. A fender device, comprising:
a first mount (10);
the second installation seat (20) is rotationally connected with a first supporting rod (21), and two ends of the first supporting rod (21) are respectively rotationally connected with one second installation seat (20);
the guard board (30) is hinged with the first mounting seat (10) and is provided with a support rod mounting seat (31), the support rod mounting seat (31) is rotationally connected with a second support rod (32), and two ends of the second support rod (32) are respectively rotationally connected with one support rod mounting seat (31);
a connecting member (40);
the hydraulic cylinder (50), the both ends of pneumatic cylinder (50) respectively with one connecting piece (40), pneumatic cylinder (50) are used for adjusting through the adjustment two distance between connecting piece (40) backplate (30) angle, two every connecting piece (40) in connecting piece (40) are connected with a head rod (41) and a second connecting rod (42), every head rod (41) both ends respectively with second bracing piece (32) and one connecting piece (40) are articulated, every second connecting rod (42) both ends respectively with first bracing piece (21) and one connecting piece (40) are articulated.
2. The apron device according to claim 1, characterized in that the first connecting rod (41) and the second connecting rod (42) are perpendicular to the hydraulic cylinder (50), respectively, when the first connecting rod (41) and the second connecting rod (42) are in the same straight line.
3. The guard plate device according to claim 1, characterized in that the first mounting seat (10) is hinged with the guard plate (30) through a pin shaft (61), a first check ring (62) is sleeved on the pin shaft (61), and the first check ring (62) is used for limiting the axial movement of the pin shaft (61);
the first support rod (21) is sleeved with a second check ring (63), and the second check ring (63) is used for limiting the axial movement of the first support rod (21).
4. The shield arrangement according to claim 1, characterized in that the first mount (10) and the second mount (20) are each fixedly connected with a shearer loader.
5. The apron arrangement of claim 4, wherein the first mount (10) is connected to the shearer via a first fastener (71) and the second mount (20) is connected to the shearer via a second fastener (72).
6. The fender assembly of claim 1, wherein a first one of the two attachment members (40) is connected to a free end of the hydraulic cylinder (50), and a second one of the two attachment members (40) is connected to a fixed end of the hydraulic cylinder (50).
7. The fender assembly of claim 1, further comprising:
and the pressure sensor is arranged in the hydraulic cylinder (50) and is used for sensing the pressure in the hydraulic cylinder (50).
8. The fender assembly of claim 7, further comprising:
the controller is connected with the pressure sensor and is used for receiving the pressure sensed by the pressure sensor, judging whether the pressure exceeds a pressure threshold value or not, and generating an alarm instruction when the pressure exceeds the pressure threshold value;
and the alarm is connected with the controller and used for alarming when receiving the alarm instruction.
9. The fender assembly of claim 1, further comprising:
and the inclination angle sensor is connected with the guard plate (30) and is used for sensing the angle of the guard plate (30).
10. A shearer, comprising: a fender assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410159947.0A CN117703370B (en) | 2024-02-05 | 2024-02-05 | Guard board device and coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410159947.0A CN117703370B (en) | 2024-02-05 | 2024-02-05 | Guard board device and coal mining machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117703370A CN117703370A (en) | 2024-03-15 |
| CN117703370B true CN117703370B (en) | 2024-04-12 |
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| CN202410159947.0A Active CN117703370B (en) | 2024-02-05 | 2024-02-05 | Guard board device and coal mining machine |
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| CN (1) | CN117703370B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031610A1 (en) * | 2010-09-07 | 2012-03-15 | Rag Aktiengesellschaft | Control of extraction work in underground coal mining by means of a laser measurement device |
| CN210768755U (en) * | 2019-09-27 | 2020-06-16 | 常州回回机械科技有限公司 | Support device of continuous miner |
| CN214887055U (en) * | 2021-07-30 | 2021-11-26 | 郑州煤机智能工作面科技有限公司 | Top guard plate device capable of completely lifting |
| CN117145468A (en) * | 2023-09-28 | 2023-12-01 | 三一智能装备有限公司 | Top guard board device and coal mining machine |
-
2024
- 2024-02-05 CN CN202410159947.0A patent/CN117703370B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031610A1 (en) * | 2010-09-07 | 2012-03-15 | Rag Aktiengesellschaft | Control of extraction work in underground coal mining by means of a laser measurement device |
| CN210768755U (en) * | 2019-09-27 | 2020-06-16 | 常州回回机械科技有限公司 | Support device of continuous miner |
| CN214887055U (en) * | 2021-07-30 | 2021-11-26 | 郑州煤机智能工作面科技有限公司 | Top guard plate device capable of completely lifting |
| CN117145468A (en) * | 2023-09-28 | 2023-12-01 | 三一智能装备有限公司 | Top guard board device and coal mining machine |
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| CN117703370A (en) | 2024-03-15 |
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