WO2013107078A1 - Furnace top chute feeder for blast furnace - Google Patents

Description

 Furnace top pulsating device

 The invention relates to a top charging device for smelting a blast furnace, in particular to a blast furnace top chute distributor.

Background technique

 The blast furnace top charging equipment is the key equipment for blast furnace iron making. Whether the equipment can meet the process requirements directly restricts the output of the blast furnace. Since the blast furnace ironmaking, the blast furnace top charging equipment has experienced the following three generations of development. The first generation is the bell top charging equipment; the second generation is the material clock and the movable furnace throat baffle top charging equipment; the third generation is the bellless top charging equipment. With the development and progress of the steel industry, in the past 20 years, especially in the past ten years, the blast furnace top loading equipment has gradually replaced the bell top with a bellless top, which has changed the single form of fabric, process performance and operation control performance. Poor, maintenance and maintenance difficulties, the realization of accurate fabrics, improve the level and efficiency of blast furnace smelting technology.

 The chutes of the existing bell-less top distributors are driven by a planetary differential transmission, a single cylinder and wire rope combination transmission, a servo motor and wire rope combination transmission, and a lever transmission mechanism. The structure of the planetary differential transmission is complicated, the equipment cost, maintenance and maintenance cost are high, the equipment manufacturing is difficult, the equipment process performance and the high temperature resistance of the furnace top are poor; the single cylinder and the wire rope combined transmission, the servo motor and the wire rope combined transmission fabric The wire rope system is complicated, the wire rope is easy to fatigue fracture, the chute is pressed by the balance ring weight, and the structure has certain limitations. It is not suitable for the big blast furnace; the lever drive has two hanging points and four hanging points. In either case, there is a problem of mechanical over-constraints and unsynchronized processing and assembly, resulting in a short life of the distributor, which does not meet the requirements of a generation of furnaces.

Summary of the invention

 In view of the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a blast furnace top chute distributor with reasonable structure, long service life, shortest transmission chain, more stable operation, and no lateral force on the guide rail. .

 In order to solve the above technical problems, the present invention adopts the following technical solutions: A blast furnace top chute distributor, comprising:

a gastight box, a top cover is arranged on the top of the airtight box; a throat pipe, the throat pipe is communicated with the outside through the top cover, and the throat pipe extends into the airtight case;

 The upper slewing bearing is fixedly connected to the top cover; the rotating sleeve is located in the airtight box, the upper end of the rotating sleeve and the upper slewing bearing The outer ring of the rotating sleeve is fixedly opposite to each other, and two trunnion holes are oppositely disposed on the diameter of the rotating sleeve, and the trunnion is respectively provided with a trunnion, and the end of the trunnion extending from the outer side of the rotating sleeve Connected to one end of a crank;

 a chute, the upper ends of the chute are respectively connected with the other end of one of the trunnions to suspend the chute in the rotating sleeve;

 a gimbal frame, the gimbal frame is sleeved on the outside of the rotating sleeve, the gimbal frame is provided with two symmetrical sliding grooves, and the crank tail wheel at the other end of the crank is disposed in the sliding slot ;

 a lower slewing bearing, the inner ring of the lower slewing bearing is fixedly connected with the universal frame; a dial assembly, one end of the dial assembly is fixedly connected with the inner ring of the lower slewing bearing, and the dial assembly The other end of the dial is located in a sliding groove formed on the rotating sleeve, and rolls in the sliding groove;

 a cylinder for moving the outer ring of the lower slewing bearing up and down;

 A horizontal drive for driving the outer ring of the upper slewing ring.

 Preferably, the large flange of the outer edge of the top cover is fixedly connected to the airtight box, and the small flange of the inner edge of the top cover is fixedly connected with the inner ring of the upper slewing bearing;

 The outer side of the chute is fixedly connected with a chute bracket, and the upper ends of the chute bracket are respectively connected to one end of the trunnion by a spline, and the other end of the trunnion is respectively connected to one end of a crank by a spline;

 The upper part of the rotating sleeve is sleeved outside the throat tube, and the rotating sleeve is sleeved with a translational support ring, and the lower part of the inner edge of the translational support ring and the lower part of the lower slewing bearing a ring is fixedly connected, a guide wheel is disposed on an outer edge of the translational ring, and a guide rail corresponding to the guide wheel is disposed on an inner wall of the airtight case, and the guide wheel is driven along the guide rail under the driving of the oil cylinder Scroll

The cylinders are three, and the three cylinders are axially evenly distributed on the top cover with respect to the horizontal rotation center line of the chute, and the three cylinders respectively pass through the transition link and the flat The movable ring is connected to drive the translational ring to move up and down, thereby driving the universal frame to move up and down.

 Preferably, the oil cylinder comprises a cylinder body and a cylinder rod, the cylinder body is fixed on the top cover by a cylinder holder, and a lower end of the cylinder rod rod is fixedly connected with the transition link through a collar, the transition A lower end of the connecting rod is connected to the adjustable connecting rod in the airtight box through the cylinder holder and the top cover, and the adjustable connecting rod is connected with the translational supporting ring.

 Preferably, the hull is a cylindrical shape having a central through hole formed by the two-cuffed sleeve body that is fastened together, and the two lobes are fixed together by a connecting bolt, and two of the central through holes are The aperture of the end is smaller than the aperture of the intermediate portion, and a step is formed at the diameter of the central through hole, and the opposite ends of the cylinder rod and the transition link respectively form a thin portion, and the cylinder rod and the transition link are The thin portions are respectively located at two ends of the central through hole, and one ends of the two thin portions are respectively connected to the connecting head, and the connecting heads are respectively located at an intermediate portion of the central through hole and abut against the step. The opposite ends of the cylinder rod and the transition link abut against both ends of the jacket.

 Preferably, the airtight box corresponds to a positioning slot of the inner wall of the guide wheel of the translational ring that is fixedly connected with a notch toward the guide wheel in a longitudinal direction, and the guide rail of the airtight case The longitudinal direction is detachably fixed in the positioning groove.

 Preferably, the guide rail is a square steel, and the guide rail is detachably fixed in the positioning groove by a plurality of spaced-apart fixing bolts welded to an inner wall of the airtight case.

 Preferably, the gimbal frame comprises two opposite and parallel first frames, two opposite and parallel second frames and a third frame, and the first frame is perpendicular to the second frame, adjacent to each other. The opposite ends of the first frame and the second frame are respectively connected to the two ends of the third frame to form a closed ring shape, and the middle portions of the two second frames are outwardly arched to form a boss, two The second frame defines two opposite sliding slots on the same side of the boss, and the length of the sliding slot along the length direction of the second frame is greater than the width of the sliding slot along the second frame The length of the two first frames is provided with a symmetrical connecting frame, and the gimbal frame is fixedly connected to the inner ring of the lower slewing ring by the two connecting frames.

Preferably, the trunnion from the trunnion toward the outside of the rotating sleeve to the trunnion The inner opening is provided with a central cavity, the one end of the trunnion is formed as an open end, and the open end of the trunnion is provided with an end cover for covering the opening of the central cavity, the end cover a through hole is formed in the middle of the through hole, and an inlet pipe for introducing cooling water into the central cavity is bored in the through hole, and the end cover plate is further provided with a plurality of communicating with the central cavity. Overflow hole.

 Preferably, an oil passage hole is opened in the trunnion from an end of the trunnion toward the outside of the rotating sleeve, and an outer wall of the trunnion at the sleeve sleeve is provided with communication to the oil hole. At least one grease outlet, the oil passage is connected to a fuel supply pipe that supplies lubricating oil in the oil passage.

 Preferably, the grease outlet holes are three, and the three grease outlet holes are arranged in a straight line on the outer wall of the trunnion sleeve at which the trunnion sleeve is sleeved.

 Preferably, the trunnion at the grease outlet is provided with a large gap fit with the trunnion sleeve.

 Preferably, the crank is fixedly disposed with a fueling device connected to the oil supply pipe for supplying oil to the oil supply pipe, and an outer wall of the rotating sleeve is provided to be capable of refueling when the crank rotates The device touches the bumper to start refueling and disengage from the oiler to stop refueling.

 Compared with the prior art, the blast furnace top chute hopper of the present invention has at least the following beneficial effects:

 1. The blast furnace top chute hopper of the invention has reasonable structure, the shortest transmission chain, stable operation, no lateral force on the guide rail, and more uniform cloth, which can fully satisfy the blast furnace bell-top top charging process operation. Various requirements.

 2. Since the three cylinders of the blast furnace top chute distributor of the present invention are externally mounted on the top cover by the cylinder holder, the requirements for quick cylinder replacement during the operation of the distributor can be met.

 3. The guide rail on the airtight box of the blast furnace top chute distributor of the invention adopts a detachable structure, which is convenient to be replaced after wear, thereby prolonging the service life to match the service life of the distributor, thereby overcoming the existing In the technology, the guide rail is difficult to process, the guide rail is difficult to heat-treat, and the operation cannot be replaced after the wear is severe.

4. The blast furnace top chute hopper of the invention performs water cooling and lubrication treatment on the trunnion, thereby meeting the requirement of smooth operation of the trunnion in a high temperature environment and reducing wear, and prolonging the trunnion. Life expectancy.

DRAWINGS

 1 is a schematic view showing the overall structure of a blast furnace top chute distributor of the present invention; FIG. 2 is an overall structure of the blast furnace top chute distributor of the present invention; FIG. 3 is a plan view of FIG.

 Figure 4 is a schematic view showing the connection structure of the universal frame of the blast furnace top chute distributor and the lower slewing inner ring and the chute bracket;

 Figure 5 is a plan view of the gimbal frame of the blast furnace top chute hopper of the present invention: Figure 6 is a front view of the gimbal frame of the blast furnace top chute hopper of the present invention: Figure 7 is a blast furnace top chute cloth of the present invention Side view of the universal frame of the device: FIG. 8 is a schematic view showing the connection structure of a cylinder and a transition link of the blast furnace top chute distributor of the present invention;

 Figure 9 is a cross-sectional view showing the ferrule of the blast furnace top chute distributor of the present invention;

 Figure 10 is a schematic view showing the connection structure of the guide rail and the guide wheel on the inner wall of the airtight box of the blast furnace top chute distributor of the present invention;

 Figure 11 is a schematic view showing the structure of the trunnion of the blast furnace top chute hopper of the present invention; Fig. 12 is a structural schematic view of the trunnion lubrication of the blast furnace top chute hopper of the present invention; 14 is an initial unfueled state of the trunnion of the hopper of the present invention. FIG. 14 is a view showing the unfilled state of the trunnion of the blast furnace top chute distributor of the present invention. FIG. 15 is a refueling state of the trunnion of the blast furnace top chute distributor of the present invention. : Description of the reference signs

 1-Airtight box 2-Top cover 3-Throat

 4-rotating sleeve 5-upper swivel 6-lower slewing 7-slot 8-universal frame 9-moving bracket

10-slot horizontal drive 11-cylinder 12-trundle

13-ear bushing 14-crank 15-transition connecting rod 16-rail 17-positioning groove 18-fixing bolt 19-center chamber 20-end cover plate 22-overflow hole

 23-Internal water pipe 24-External water pipe 25-Water-cooled chassis 26-Connection bolt 27-Sealing ring 28-Over-oil hole

 29- Grease outlet 30-Supply pipe 31- Oiler

 32-Bumping block 34-Crank tail wheel 35-Adjustable connecting rod 36-Cylinder rod 37-Dial wheel assembly 71-Chute bracket 81-Chute 82-First frame 83-Second frame 84-Third frame 85- Boss 86-connector

 91-guide wheel 92-holding sleeve 93-cylinder bearing 94-cylinder 95-sleeve body 96-center through hole 97-connection bolt 98-connecting head 99-reduction motor 100-step 101- detail

Specific real

 The invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

 1 is a schematic view showing the overall structure of a blast furnace top chute hopper according to the present invention; FIG. 2 is a schematic view showing the overall structure of the blast furnace top chute hopper according to another aspect of the present invention; FIG. 3 is a plan view of FIG. Schematic diagram of the connection structure of the universal frame of the blast furnace top chute distributor and the lower slewing inner ring and the chute bracket; as shown in FIG. 1 to FIG. 4, the blast furnace top chute distributor of the present invention includes an airtight box Body 1, top cover 2, throat 3, rotary sleeve 4, upper slewing ring 5, lower slewing ring 6, chute 7, gimbal frame 8, translation ring 9, chute horizontal transmission 10 and three cylinders 11 . The middle of the top cover 2 has a through hole (not shown) for allowing the throat 3 to pass through, the top cover 2 covers the upper end of the airtight case 1, and the outer flange of the outer cover 2 has a large flange and an airtight case 1 Fixed connection. In the present invention, both the upper slewing ring 5 and the lower slewing ring 6 adopt a conventional structure, and gp includes both inner and outer rings which are relatively rotatable but are not movable up and down. The small flange of the inner edge of the top cover 2 is fixedly connected to the inner ring of the upper slewing ring 5. The throat 3 is disposed in the airtight casing 1 through the through hole of the top cover 2.

As shown in FIG. 1, FIG. 2 and FIG. 4, the rotary sleeve 4 is located in the airtight housing 1, and the upper portion of the rotary sleeve 4 is sleeved outside the throat 3. The upper end of the rotary sleeve 4 and the upper slewing bearing 5 The outer ring is fixedly connected, and the inner ring of the upper slewing ring 5 is fixedly coupled to the top cover 2, so that the rotary sleeve 4 and the top cover 2 are in a static state with each other in the vertical direction. The rotation of the outer ring of the upper slewing ring 5 is driven by the chute horizontal transmission 10 provided on the top cover 2, and drives the rotary sleeve 4 to rotate 360 degrees around the center line of the top cover 2. The rotary sleeve 4 is provided with a chute 7 which is rotatable therewith. The connection relationship between the rotary sleeve 4 and the chute 7 is as follows: Two cylindrically opposed trunnion holes are formed in the wall of the rotary sleeve 4 ( Not shown in the drawings), each of the trunnion holes is provided with a trunnion sleeve 13 in which the trunnion 12 which can rotate in the trunnion sleeve 13 is respectively mounted. The chute bracket 71 is fixedly connected to the outer side of the chute 7, and the upper ends of the chute bracket 71 are respectively connected to one end of the trunnion 12 by splines, so that the chute 7 is hung on the two trunnions 12, and the trunnion 12 is passed through. The trunnion sleeve 13, that is, the chute 7 is hung on the rotating sleeve 4 through the trunnion. The chute bracket 71 and the chute 7 are always in a relatively stationary state and rotate together with the rotary sleeve 4.

 1 to 3, the three cylinders 11 are axially distributed on the top cover 2 with respect to the horizontal rotation center line of the chute 7, and the three cylinders 11 are respectively connected to the translation ring 9 through the transition link 15, respectively. The translation bracket 9 moves up and down. The swinging support ring 9 is sleeved outside the rotary sleeve 4, and the lower part of the inner edge of the translational support ring 9 and the outer ring of the lower slewing bearing 6 are integrally fixed by bolts, so that the translational support ring 9 can drive the lower slewing ring The outer ring and inner ring of 6 move up and down. The outer edge of the movable ring 9 is provided with a guide wheel 91. The inner wall of the airtight case 1 is provided with a guide rail 16 corresponding to the guide wheel 91. The guide wheel 91 is disposed on the guide rail 16 and is driven up and down along the guide rail 16 under the driving of the oil cylinder 11. Rolling to ensure the precise direction of movement of the outer and inner rings of the translational ring 9 and the lower slewing ring 6. The universal frame 8 is sleeved outside the rotating sleeve 4, and the universal frame 8 is fixedly connected with the inner ring of the lower slewing bearing 6, and the up and down movement of the translational ring 9 drives the inner ring of the lower slewing bearing 6 to move up and down, thereby driving 10,000 Move up and down the frame 8. The other end of the trunnion 12 passes through the trunnion sleeve 13 and is coupled to a crank 14 via a spline. The crank tail 34 of the other end of the crank 14 is located in the chute 81 of the gimbal frame 8. Since the rotary sleeve 4 cannot move up and down, when the gimbal frame 8 moves up and down, the chute 81 moves the crank tail wheel 34 up and down while moving along the chute 81, so that the crank 14 drives the trunnion 12 in the trunnion sleeve 13. When rotated, the rotation of the trunnion 12 causes the chute 7 and the chute bracket 71 to swing.

The inner ring of the lower slewing bearing 6 is fixedly connected with a dial assembly 37. The dial of the dial assembly 37 is located in an up-and-down sliding groove (not shown) provided on the rotating sleeve 4, and the cylinder 11 moves the lower slewing ring 6 up and down by the translational support ring 9, so that when the chute oscillates, the dial slides up and down relative to the rotary sleeve 4 in the sliding groove of the rotary sleeve 4, when the rotary sleeve 4 rotates, The dial rotates with the rotary sleeve 4 while sliding up and down the sliding groove of the rotary sleeve 4, and drives the inner ring of the lower slewing bearing 6 and the universal frame 8 to rotate, thereby completing the swinging of the chute 7 while rotating. Actions.

 As a preferred embodiment of the present embodiment, as shown in FIG. 1, the three cylinders 11 respectively include a cylinder block 94 and a cylinder rod 36, and the cylinder block 94 is fixed to the top cover 2 via the cylinder holder 93, and the lower end of the cylinder rod 36 The lower end of the transition link 15 extends through the cylinder support 93 and the top cover 2 into the airtight case 1 through the collar 92 and the transition link 15, and the adjustable link in the airtight case 1 35 is connected, and the adjustable link 35 is connected to the translation ring 9. Therefore, the up and down movement of the cylinder rod 36 will drive the translation ring 9 up and down. The cylinder 11 of the present embodiment is disposed in an external cylinder type, that is, the cylinder rod 36 is located outside the airtight housing 1, or the cylinder rod 36 is located outside the blast furnace top chute distributor of the present invention, thereby changing The built-in way of the cylinder rod of the original cylinder to extend into the airtight box. When there is a problem in the cylinder 11 that needs to be disassembled for inspection or replacement, it is not necessary to open the distributor body, and only the cylinder 11 is removed from the cylinder holder 93, and then the collar 92 is released, so that the cylinder rod 36 and the transition The connecting rod 15 can be separated, and it is not as complicated as the need to open the distributor when the built-in cylinder is disassembled, so that the disassembly is convenient and quick, and the production efficiency is improved.

 As a further preferred solution, as shown in FIG. 8 and FIG. 9, the cuff 92 is a cylindrical shape having a central through hole 96 formed by the two-cuffed body 95 that is fastened together, and the two-cuffed body 95 is connected. The bolts 97 are fixed together, the diameter of the two ends of the center through hole 96 is smaller than the diameter of the intermediate portion, and the step 100 is formed at the variable diameter of the center through hole 96, and the opposite ends of the cylinder rod 36 and the transition link 15 respectively form a section 101. The cylinder rod 36 and the thin portion 101 of the transition link 15 are respectively located in the two ends of the central through hole 96. One ends of the two thin portions 101 are respectively connected to the head 98, and the connecting head 98 is located at the middle portion of the central through hole 96 and abuts against On the step 100, the opposite ends of the cylinder rod 36 and the transition link 15 abut against both ends of the collar 92. The cylinder rod 36 is fixedly coupled to the transition link 15 by a hoop 92.

In order to overcome the direct welding of the guide rail to the inner wall of the airtight box 1 in the prior art, there are disadvantages such as difficulty in processing, difficulty in heat treatment of the guide rail, serious wear of the guide rail, short life, and non-replacement when the guide rail fails. As another preferred embodiment of this embodiment, as shown in FIG. The present invention adopts a detachable guide rail 16 , that is, a positioning slot 17 that is fixedly connected with a notch toward the guide pulley 91 in the longitudinal direction on the inner wall of the guide pulley 91 of the airtight housing 1 corresponding to the translational ring 9 . The groove 17 can be fixed on the inner wall of the airtight case 1 by welding, and the guide rail 16 (made of square steel) is detachably fixed in the positioning groove 17 in the longitudinal direction through a plurality of spaced-apart fixing bolts 18, when the guide rail When the wear is severe, the guide rail 16 can be detached from the positioning groove 17 and replaced with another new guide rail, thereby improving the service life of the guide rail.

 As a further preferred embodiment of the present embodiment, as shown in FIGS. 4 to 7, the gimbal frame 8 is a cast-shaped profiled frame, and the gimbal frame 8 includes two opposite and parallel first frames 82 and two opposite sides. And the second frame 83 is parallel, and the first frame 82 is perpendicular to the second frame 83, and the opposite ends of the adjacent first frame 82 and the second frame 83 are respectively connected to the two ends of the third frame 84, that is, the first frame 82. The second frame 83 and the third frame 84 are sequentially looped end to end to form a closed ring. The middle portions of the two second frames 83 are outwardly arched to form a boss 85. The boss 85 is disposed to prevent the bottom turn. The support 6 projects the gimbal frame 8 in the horizontal direction, and the boss 85 is also provided for the end cover 20 attached to the trunnion 12, the lower end of the outer water pipe 24, and the oil supply pipe 30, which will be described later. The two second frames 83 are provided with two opposite sliding slots 81 on the same side of the boss 85. The length of the sliding slot 81 along the length of the second frame 83 is greater than the length of the sliding slot along the width of the second frame 83, that is, Is the chute 81 is one Elongated hole, the end of the crank wheel 34 is provided inside the chute 81, and can occur in the movement of the first frame 82 in the longitudinal direction of the chute 81. A connecting frame 86 is disposed in the middle of the two first frames 82, and the gimbal frame 6 is connected to the inner ring of the lower turning support 6 via two symmetrically arranged connecting brackets 86.

Since the trunnion 12 is directly operated in a high temperature environment, in order to ensure the smooth running and the service life of the trunnion 12, as a further preferred embodiment of the embodiment, the present embodiment performs forced cooling on the trunnion 12 itself to better It satisfies the functional requirements of the trunnion 12 running smoothly in a high temperature environment. As shown in FIG. 11, a central chamber 19 is opened from the trunnion 12 toward the outside of the rotating sleeve 4 to the trunnion 12 (the central chamber 19 is not open to the other end of the trunnion 12), and the trunnion 12 One end is formed as an open end, and the open end of the trunnion 12 is provided with an end cover 20 for covering the opening of the central chamber 19, and the end cover 20 is detachably connected to the trunnion 12 by a connecting bolt 26, and the end A seal ring 27 is disposed between the cover plate 20 and the trunnion 12. A through hole (not shown) is opened in a middle portion of the end cover 20, and the through hole is bored for An inlet pipe for cooling water is introduced into the central chamber 19, and a plurality of overflow holes 22 communicating with the central chamber 19 are also formed in the end cover 20. The inlet pipe is divided into an internal water pipe 23 located inside the center chamber 19 and an external water pipe 24 connected to the cooling water source outside the center chamber 19, and one end of the internal water pipe 23 extends to the end close to the center chamber 19 for cooling Water fills the entire central chamber 19. The cooling water in the central chamber 19 cools the trunnion 12 and then flows out through the overflow hole 22 provided in the end cover 20, and the cooled cooling water finally enters the water-cooled chassis 25 as shown in FIG. The water-cooled chassis 25 is connected to the cooling water system of the distributor. The specific flow of the cooling water in the central chamber 19 is as shown in the arrow of Fig. 11 for the dry wear between the trunnion 12 and the trunnion sleeve 13 of the prior art, as a further preferred embodiment. Lubricating oil is injected into the friction surface between the trunnion 12 and the trunnion sleeve 13 to effectively reduce the coefficient of friction and thereby increase the service life of the trunnion 12. The specific structure is as shown in FIG. 12: an oil passage hole 28 is opened from the trunnion 12 toward the outside of the rotating sleeve 4, and the outer wall of the trunnion 12 at the trunnion sleeve 13 is connected to the outer wall. At least one grease outlet hole 29 of the oil hole 28 is connected to the oil supply pipe 30 which supplies lubricating oil in the oil passage hole 28.

 As still further preferred, as shown in Fig. 12, in consideration of the uniformity of the injection of the lubricating oil, three grease outlet holes 29 are provided, and the three grease outlet holes 29 are uniformly distributed in a straight line at the sleeve cover 13 On the outer wall of the trunnion 12. Further, the oil passage hole 28 is preferably opened near the outer wall of the trunnion 12, preferably not in the middle of the trunnion 12, and the grease outlet hole 29 is also opened to the side closer to the outer wall of the trunnion 12 to reduce the processing. Difficulty, reducing the distance the grease flows. In addition, the trunnion 12 at the grease outlet 29 is provided with a large clearance fit, so that the initial state of the trunnion 12 and the trunnion 13 is in line contact, after a period of operation, the trunnion 12 and the trunnion The line contact between the sleeves 13 is converted into a narrow-face contact, and the lubrication treatment here can effectively reduce the friction coefficient and thereby increase the service life.

As a still further preferred, as shown in FIG. 12, since the lubrication of the trunnion 12 described above cannot provide lubricating oil by the external lubricating device, the oiler 31 is fixedly disposed on the crank 14, and the bumper 32 is disposed on the outer wall of the rotating sleeve 4. The rotation of the crank 14 drives the oiler 31 to move up and down to achieve contact and separation with the bump 32. In order to control the amount of fueling, fixed-cycle lubrication is used during the operation of the distributor. During the non-lubrication period, the oiler 31 is not connected to the bumper 32. At the touch, the running angle of the chute 81 is controlled between 7 degrees and 45 degrees. When entering the lubrication cycle, the operating angle control range of the chute 81 changes. Lubrication for the trunnion 12 is performed during the operation of the equipment using a fixed period of lubrication, that is, the distributor cloth is lubricated every ten batches, and the non-lubrication time oiler 31 is not in contact with the bump 32, when the trunnion 12 is subjected to the lubrication cycle. At the time of the rotation of the crank 14, when the running angle of the chute 81 is 4 degrees, the oiler 31 collides with the bump 32 to start refueling, as shown in FIG. As shown in Fig. 15, when the chute 81 reaches 1 degree, the oiler 31 is filled. Then, the bumper block 32 is separated from the oiler 31, and the oiler 31 stops the oiling, that is, the state shown in Fig. 14. Chute 81 enters the next refueling cycle. The angle of the swing of the chute 81 is changed by adjusting the length of the adjustable link 35 to control the height of the gimbal frame 8.

 The working principle and working process of the blast furnace top chute distributor of the present invention will be described below with reference to Figs. 1 to 4:

 To complete the fabric of the distributor, it is necessary to swing while the chute 7 is rotating to achieve uniform fabric.

 The realization of the chute swinging: the three oil cylinders 11 are respectively connected with the translational support ring 9 through the transition link 15, the adjustable connecting rod 35, and the outer ring of the lower slewing bearing 6 is connected with the translational support ring 9 by bolts, The inner ring of the slewing ring 6 is connected to the gimbal frame 8. When the cylinder rods 36 of the three cylinders 11 move up and down, the translational ring 9, the lower slewing ring 6 and the gimbal frame 8 are driven to move up and down. The swinging support ring 9 is engaged with the guide rail 16 of the airtight box 1 during the up and down movement to form rolling friction, and the guide rail 16 of the airtight housing 1 acts as a limit on the movement of the guide pulley 91. The crank tail wheel 34 assembled into the chute 81 of the gimbal frame 8 moves in the same direction as the gimbal frame 8, and the crank 14 mounted on the outer side of the trunnion 12 drives the trunnion 12 to be made in the trunnion sleeve 13 of the rotary sleeve 4. The rotation of the corresponding amplitude. The other end of the trunnion 12 is coupled to the chute bracket 71 by a spline, and thus, the chute 7 and the chute bracket 71 are synchronously oscillated with the crank 14 under the power transmitted by the spline of the trunnion 12.

The realization of the rotation of the chute 7 is: the large flange of the top cover 2 is fixedly connected with the airtight box body 1, the small flange at the lower part of the top cover 2 is connected with the inner ring of the upper slewing ring 5, and the outer ring and the rotating sleeve of the upper slewing ring 5 The barrel 4 is fixedly connected, and the two trunnions 12 are mounted in the trunnion sleeve 13 which is formed in the trunnion hole of the rotary sleeve 4. The trunnion 12-end spline is connected with the crank 14 and the other end spline and chute bracket 71 connection, that is to say, the chute bracket 71 is hung on the rotating sleeve through the trunnion 12 On the tube 4. The chute horizontal transmission device 10 is mounted on the top cover 2, and the power of the chute horizontal transmission device 10 is provided by a reduction motor 99. When the chute horizontal transmission device 10 is driven by the pinion to rotate the outer ring of the upper slewing ring 5, the rotary sleeve 4 is provided. When the outer ring of the upper slewing ring 5 rotates, the chute bracket 71 also rotates with the rotary sleeve 4, and the chute 7 mounted on the chute bracket 71 rotates accordingly.

 The manner in which the chute 7 rotates and oscillates simultaneously: As shown in Fig. 1, the dial assembly 37 is mounted on the inner ring of the lower slewing bearing 6, so that the dial assembly 37 can move up and down with the translational ring 9, the dial assembly 37 The dial wheel can roll up and down in the sliding groove of the rotating sleeve 4, and when the rotating sleeve 4 rotates, the dial assembly 37 rotates together with the rotating sleeve 4, thereby dragging the gimbal frame 8 to follow, and then turning down The inner ring of the support 6 performs a circumferential rotational motion. Since the cylinder 11 is dragged up and down by the adjustable link 35, the outer ring of the lower slewing ring 6 is fixedly connected with the translation ring 9 to remain relatively stationary, and because of the inner ring of the lower slewing bearing 6, The ring has relatively no movement in the vertical direction, so that the gimbal frame 8 is operated up and down, and the crank tail wheel 34 moves upward along the gimbal frame 8 in the chute 81 of the gimbal frame 8, since the rotating sleeve 4 cannot move up and down, The crank 14 rotates the trunnion 12 in the trunnion sleeve 13, and the rotation of the trunnion 12 drives the chute 7 and the chute bracket 71 to swing at a constant amplitude. Thus, the chute 7 completes the organic synthesis of the rotation and the oscillating motion with the chute bracket 71.

 The above embodiments are merely exemplary embodiments of the invention, and are not intended to limit the invention, and the scope of the invention is defined by the claims. A person skilled in the art can make various modifications or equivalents to the invention within the spirit and scope of the invention, and such modifications or equivalents are also considered to be within the scope of the invention.

Claims

Rights request 1. A blast furnace top chute distributor, characterized in that:  a gastight box, a top cover is arranged on the top of the airtight box;  a throat pipe, the throat pipe is communicated with the outside through the top cover, and the throat pipe extends into the airtight case;  The upper slewing bearing is fixedly connected to the top cover; the rotating sleeve is located in the airtight box, the upper end of the rotating sleeve and the upper slewing bearing The outer ring of the rotating sleeve is fixedly opposite to each other, and two trunnion holes are oppositely disposed on the diameter of the rotating sleeve, and the trunnion is respectively provided with a trunnion, and the end of the trunnion extending from the outer side of the rotating sleeve Connected to one end of a crank;  a chute, the upper ends of the chute are respectively connected with the other end of one of the trunnions to suspend the chute in the rotating sleeve;  a gimbal frame, the gimbal frame is sleeved on the outside of the rotating sleeve, the gimbal frame is provided with two symmetrical sliding grooves, and the crank tail wheel at the other end of the crank is disposed in the sliding slot ;  a lower slewing bearing, the inner ring of the lower slewing bearing is fixedly connected with the universal frame; a dial assembly, one end of the dial assembly is fixedly connected with the inner ring of the lower slewing bearing, and the dial assembly The other end of the dial is located in a sliding groove formed on the rotating sleeve, and rolls in the sliding groove;  a cylinder for moving the outer ring of the lower slewing bearing up and down;  A horizontal drive for driving the outer ring of the upper slewing ring.  2 . The blast furnace top chute hopper according to claim 1 , wherein a large flange of an outer edge of the top cover is fixedly connected to the airtight box, and a small flange of the inner edge of the top cover is The inner ring of the upper slewing ring is fixedly connected;  The outer side of the chute is fixedly connected with a chute bracket, and the upper ends of the chute bracket are respectively connected to one end of the trunnion by a spline, and the other end of the trunnion is respectively connected to one end of a crank by a spline; The upper part of the rotating sleeve is sleeved outside the throat tube, and the rotating sleeve is sleeved with a translational support ring, and the lower part of the inner edge of the translational support ring and the lower part of the lower slewing bearing Circle The outer edge of the translational support ring is provided with a guide wheel, and the inner wall of the airtight case body is provided with a guide rail corresponding to the guide wheel, and the guide wheel is rolled up and down along the guide rail under the driving of the oil cylinder ;  The cylinders are three, and the three cylinders are axially evenly distributed on the top cover with respect to the horizontal rotation center line of the chute, and the three cylinders respectively pass through the transition link and the translation ring. Connecting, driving the translational ring to move up and down, thereby driving the universal frame to move up and down.  3. The blast furnace top chute hopper according to claim 2, wherein the oil cylinder comprises a cylinder block and a cylinder rod, and the cylinder block is fixed to the top cover by a cylinder holder, the cylinder rod The lower end is fixedly connected to the transition link through a hug, and the lower end of the transition link is connected to the adjustable link in the airtight box through the cylinder support and the top cover, the adjustable connection A rod is coupled to the translational ring.  The blast furnace top chute hopper according to claim 3, wherein the hull is a cylindrical shape having a central through hole formed by a two-cuffed body that is fastened together, and the two lobes are The collar body is fixed together by a connecting bolt, the aperture of the two ends of the central through hole is smaller than the aperture of the intermediate portion, and a step is formed at the diameter of the central through hole, and the cylinder rod is opposite to the transition link Forming a segment at each end, wherein the cylinder rod and the detail of the transition link are respectively located in two ends of the central through hole, and one ends of the two parts are respectively connected to the connector, and the connectors are located at The middle portion of the central through hole abuts against the step, and the opposite ends of the cylinder rod and the transition link abut against both ends of the sleeve.  The blast furnace top chute hopper according to claim 2, wherein the airtight box is fixedly connected to the inner wall of the guide wheel of the translation ring in a longitudinal direction with a notch facing the The positioning groove of the guide wheel, the guide rail of the airtight case is detachably fixed in the positioning groove in the longitudinal direction.  The blast furnace top chute hopper according to claim 5, wherein the guide rail is square steel, and the guide rail is detachably fixed in the positioning groove by a plurality of spaced apart fixing bolts. The positioning groove is welded to an inner wall of the airtight case. The blast furnace top chute hopper according to claim 1 or 2, wherein the gimbal frame comprises two opposite and parallel first frames, two opposite and parallel portions a second frame and a third frame, wherein the first frame is perpendicular to the second frame, and adjacent first ends of the first frame and the second frame are respectively connected to two ends of the third frame Forming a closed ring, the middle portions of the two second frames are outwardly arched to form a boss, and the two second frames open two opposite sliding grooves on the same side of the boss, the sliding The length of the slot along the length of the second frame is greater than the length of the slot along the width of the second frame, and the middle of the two first frames is provided with a symmetric connecting frame, and the universal frame passes through two The connecting brackets are fixedly connected to the inner ring of the lower slewing ring.  The blast furnace top chute hopper according to claim 1 or 2, wherein a central chamber is opened from the trunnion toward an outer end of the rotating sleeve toward the trunnion, The one end of the trunnion is formed as an open end, and the open end of the trunnion is provided with an end cover for covering an opening of the central cavity, and a through hole is defined in a middle of the end cover An inlet pipe for introducing cooling water into the central chamber is bored in the through hole, and the end cover plate is further provided with a plurality of overflow holes communicating with the central chamber.  The blast furnace top chute hopper according to claim 1 or 2, wherein an oil hole is formed in the trunnion from an end of the trunnion toward the outside of the rotating sleeve, and the sleeve is provided The outer wall of the trunnion at the trunnion sleeve is provided with at least one grease outlet opening communicating with the oil passage hole, and the oil passage hole is connected with a fuel supply pipe for supplying lubricating oil in the oil passage hole.  The blast furnace top chute hopper according to claim 9, wherein the grease outlet holes are three, and the three grease outlet holes are arranged in a straight line on the sleeve bushing. On the outer wall of the trunnion.  11. The blast furnace top chute hopper according to claim 10, wherein the trunnion at the grease outlet is provided with a large clearance fit with the trunnion sleeve.  The blast furnace top chute hopper according to claim 10, wherein the crank is fixedly disposed with a fueling device connected to the oil supply pipe for supplying oil to the oil supply pipe, the rotation The outer wall of the sleeve is provided with a bumper that can be brought into contact with the oiler when the crank rotates to start refueling and disengage from the oiler to stop refueling.