Gear reducer maintenance dismounting device

Abstract

The application discloses to the technical field of speed reducer maintenance, in particular to a kind of gear speed reducer maintenance is dismantled device, including base, intermittent divider is fixedly installed in base, the upper end of intermittent divider is fixedly installed with rotary disc, and rotary disc is rotationally contacted with the upper surface of base;The upper end of rotary disc is annular array and is provided with a plurality of first installation grooves and a plurality of second installation grooves, and a plurality of first installation grooves and a plurality of second installation grooves are alternately distributed, and the positioning die holder for placing speed reducer shell seat is fixedly installed in each first installation groove;The beneficial effects of the present application are: intermittent divider drives rotary disc intermittent rotation, so that alternately distributed positioning die holder and dismounting die holder are switched to work station in turn, during dismounting process, automatic positioning limiting of speed reducer shell seat is realized first, then bearing body is pulled and dismounted, and after bearing body is separated from speed reducer shell seat, automatic unloading cycle operation is carried out on bearing body.

Description

Technical Field

[0001] This invention relates to the field of speed reducer repair technology, specifically a disassembly device for repairing gear speed reducers. Background Technology

[0002] In a gear reducer, the bearings on the reducer shaft provide stable support for the high-speed rotating gear shaft, ensuring that the gear shaft does not bend or deform excessively during operation. During the operation of the gear reducer, the bearings can withstand the weight of the gear shaft and various loads from the gear drive, including radial and axial loads. During reducer maintenance, it is often necessary to disassemble the bearings, especially when they are excessively worn or deformed and need to be replaced.

[0003] In actual disassembly, the gear shaft and bearing often separate. The gear shaft is pulled out of the housing bearing seat hole first due to a relatively loose fit or with the help of conventional tools. However, the bearing is stuck in the stepped hole of the housing because of the large interference fit between the outer ring and the housing seat hole, corrosion and seizing of the mating surface, or thermal deformation. This makes it impossible to remove the bearing with the shaft. At this time, the end face of the bearing outer ring is often basically flush with the stepped hole of the housing, and only the inner ring is exposed without being covered by the housing structure.

[0004] In the face of the above situation, traditional disassembly methods have certain drawbacks. The clamps in traditional disassembly devices cannot effectively hold the outer ring of the bearing, and slippage is likely to occur. Knocking or prying is not only inefficient, but also easily causes scratches or damage to the inner wall surface of the housing and bearing seat hole during the knocking process, affecting the subsequent use of the housing. Destructive disassembly requires cutting or crushing the bearing, which is difficult to operate and still poses a risk of damaging the housing, making it unsuitable for actual gearbox disassembly work. Summary of the Invention

[0005] The purpose of this invention is to provide a disassembly device for repairing gear reducers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a disassembly device for repairing a gear reducer, comprising a base, an intermittent divider fixedly installed inside the base, a rotating disk fixedly installed at the upper end of the intermittent divider, and the rotating disk rotatably contacting the upper surface of the base; The upper end of the rotating disk is provided with a plurality of first mounting slots and a plurality of second mounting slots in a ring array. The plurality of first mounting slots and the plurality of second mounting slots are alternately distributed. Each first mounting slot is fixedly installed with a positioning mold base for placing the reducer housing seat. An annular support base is fixedly installed at the bottom of the inner cavity of the positioning mold base. Each second mounting slot is fixedly installed with a disassembly mold base for supporting the bearing body. A circular through hole is provided at the bottom of the disassembly mold base. A support frame is provided on the side of the base. A hydraulic cylinder is fixedly installed on the upper end of the support frame. A lifting frame is fixedly installed on the lower end of the inner rod of the hydraulic cylinder. A limit mechanism and a pulling column are fixedly connected to the bottom of the lifting frame. A pulling mechanism for disassembling the bearing body is installed on the lower end of the pulling column.

[0007] As a further embodiment of the present invention, the limiting mechanism includes a sliding groove formed on the side of the support frame, and limiting grooves are symmetrically formed on the inner side of the sliding groove. A limiting frame is slidably installed between the two symmetrical limiting grooves, and a limiting sleeve is fixedly installed on each positioning mold base. The limiting frame is movably inserted into the adjacent limiting sleeve. A drive frame is fixedly installed at the lower end of the lifting frame. The drive frame and the pull column are respectively installed at both ends of the bottom of the lifting frame. An extrusion groove is opened on the side of the drive frame. A transmission rod is slidably installed in the extrusion groove. The two ends of the transmission rod are respectively fixedly connected to the inner side wall of the limiting frame.

[0008] As a further embodiment of the present invention, the inner sidewall of the support frame is symmetrically provided with guide grooves, and the side of the lifting frame is symmetrically fixedly connected with guide plates, and the guide plates are slidably connected to the adjacent guide grooves.

[0009] As a further embodiment of the present invention, the extrusion groove is composed of a first vertical groove, an inclined groove, and a second vertical groove. The first vertical groove is located at the upper end of the drive frame, the inclined groove is located at the middle position of the drive frame, and the second vertical groove is located at the lower end of the drive frame. The two ends of the inclined groove are respectively connected to the first vertical groove and the second vertical groove.

[0010] As a further embodiment of the present invention, the drawing mechanism includes a cylindrical groove formed inside the drawing column, a lifting groove formed at the upper end of the cylindrical groove, an annular cavity formed on the inner sidewall of the cylindrical groove, a plurality of contraction grooves formed in an annular array at the lower end of the cylindrical surface of the drawing column, a plurality of strip grooves formed in an annular array at the bottom of the drawing column, the strip grooves being connected to the cylindrical groove and the contraction groove respectively, and a locking groove formed on the inner sidewall of the lifting groove; A pulling gripper is slidably installed inside the shrinkage groove. The two sides of the pulling gripper are provided with protruding edges. A shrinkage spring is fixedly installed on the side of the edge. One side of the shrinkage spring abuts against the inner wall of the shrinkage groove. The pulling column is equipped with an ejection mechanism for pushing out the pulling jaws.

[0011] As a further embodiment of the present invention, a self-locking mechanism is installed at the upper end of the ejection mechanism, and an unlocking mechanism is installed on the side of the pull-out column.

[0012] As a further embodiment of the present invention, the ejection mechanism includes a light rod slidably installed in a cylindrical groove. The lower end of the light rod is fixedly connected to multiple push plates in a circular array. Each push plate is slidably connected to an adjacent strip groove. The upper end of the push plate near the pulling claw is an inclined surface. An annular plate is fixedly sleeved on the outside of the light rod. The upper end of the annular plate abuts against a downward push spring. The upper end of the downward push spring abuts against the top of the annular cavity. The upper end of the light rod extends into the lifting groove and is fixedly connected to a movable seat. The movable seat is slidably connected to the lifting groove. A movable groove is opened on one side of the movable seat. The self-locking mechanism is installed in the movable groove.

[0013] As a further embodiment of the present invention, the self-locking mechanism includes a locking block slidably installed in a movable groove, a locking spring is installed on one side of the locking block, one side of the locking spring abuts against the movable groove, and a ball is rotatably installed on the end of the locking block away from the locking spring.

[0014] As a further embodiment of the present invention, the unlocking mechanism includes a concave frame fixedly installed on the side of the pull-out column. A pressing rod is slidably installed on the side of the concave frame. One end of the pressing rod extends to the inner side of the concave frame. A limiting plate and a return spring are sleeved on the outer side of the inner end of the pressing rod. The limiting plate is fixedly connected to the pressing rod. The two ends of the return spring abut against the pull-out column and the limiting plate, respectively. One end of the pressing rod passes through the pull-out column and extends into the locking groove. A roller is rotatably installed on the end of the pressing rod away from the pull-out column through a roller frame. A pressing plate is fixedly installed on the upper end of the disassembly mold base. A pressing slope is provided on the upper end of the pressing plate.

[0015] The beneficial effects of this invention are: 1. The intermittent divider drives the rotary table to rotate intermittently, so that the alternately distributed positioning mold base and disassembly mold base are switched to the working position in sequence. During the disassembly process, the automatic positioning and limiting of the reducer housing base is realized first, and then the bearing body is pulled out and disassembled. After the bearing body is separated from the reducer housing base, the bearing body is automatically unloaded in a cycle. The whole process is highly automated, which improves maintenance efficiency and operational safety.

[0016] 2. Through the cooperation of the limiting mechanism and the positioning mold base, the reducer housing is stably pressed during the pulling process, effectively preventing the reducer housing from shaking or moving upwards, ensuring the reliability of bearing body disassembly and the integrity of parts; through the cooperation of the extrusion groove on the drive frame and the transmission rod, the limiting frame limits the housing before the pulling action when the pulling column moves downwards, and the limiting frame detaches from the housing after a delay when the pulling column moves upwards, so that the limiting and pulling actions form an orderly linkage, with a compact structure and accurate and reliable action logic.

[0017] 3. The ejection mechanism can automatically push the pulling jaws along the side of the pulling column, so that the jaws can automatically engage with the lower end face of the inner ring of the bearing body. The self-locking mechanism fixes the guide rod and the pulling column to ensure that the pulling jaws stably bear the pulling force during the pulling process, avoiding slippage or clamping failure. Thus, the disassembly between the bearing body and the reducer housing can be completed effectively, stably and quickly.

[0018] 4. Through the unlocking mechanism, when the pull column moves the bearing body down and contacts the disassembly mold base, the extrusion plate and roller cooperate to trigger the extrusion rod, pushing the locking block out of the locking groove, releasing the self-locking of the ejection mechanism, causing the ejection mechanism to move down, releasing the thrust on the pull gripper, and causing the pull gripper to automatically retract under the action of the shrinking spring, realizing the non-destructive separation of the bearing body and the pull column. The structure is simple and can complete the unloading and reset without the need for an additional power source. Attached Figure Description

[0019] Figure 1 This is a perspective view of the disassembly device for repairing gear reducers according to the present invention; Figure 2 This is a side sectional view of the disassembly device for repairing gear reducers according to the present invention; Figure 3 This is an exploded view of the positioning mold base and limiting mechanism structure of the present invention; Figure 4 This is a first side sectional view of the positioning mold base, pulling column, and pulling mechanism structure of the present invention; Figure 5 This is a second side sectional view of the positioning mold base, pulling column, and pulling mechanism structure of the present invention; Figure 6 This is a cross-sectional view of the structure of the pull-out column, self-locking mechanism and unlocking mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the pull column, pull gripper, and retraction spring of the present invention; Figure 8 This is an exploded view of the positioning mold base, reducer housing base, and drawing column structure of the present invention; Figure 9 This is an exploded view of the structure of the pull-out column, pull-out gripper, and ejection mechanism of the present invention; Figure 10This is an exploded view of the structure of the drawing column and drawing mechanism of the present invention; Figure 11 This is a partial schematic diagram of the rotating disk, disassembly mold base, pull-out column, and unlocking mechanism of the present invention; Figure 12 This is a side sectional view of the disassembly mold base, pulling column, and pulling mechanism structure of the present invention; Figure 13 for Figure 12 Enlarged schematic diagram of the structure at point A in the middle; Figure 14 This is a schematic diagram of the structure of the pull-out gripper in the retracted state when the pull-out column separates from the bearing body according to the present invention.

[0020] In the diagram: 1. Base; 11. Intermittent divider; 12. Rotary disk; 13. First mounting slot; 14. Second mounting slot; 15. Positioning mold base; 16. Reducer housing base; 161. Bearing body; 17. Disassembly mold base; 18. Extrusion plate; 2. Support frame; 21. Slide groove; 22. Limiting groove; 23. Guide groove; 3. Hydraulic cylinder; 31. Lifting frame; 32. Guide plate; 33. Limiting frame; 34. Limiting sleeve; 4. Drive frame; 41. First vertical groove; 42. Inclined groove; 43. 44. Second vertical groove; 5. Transmission rod; 6. Pulling column; 7. Cylindrical groove; 8. Lifting groove; 9. Annular cavity; 10. Contraction groove; 11. Strip groove; 12. Locking groove; 13. Pulling gripper; 14. Contraction spring; 15. Smooth rod; 26. Push plate; 37. Annular plate; 48. Pushing spring; 59. Movable seat; 20. Movable groove; 20. Locking block; 21. Locking spring; 22. Concave frame; 33. Extrusion rod; 44. Limiting plate; 55. Return spring; 66. Roller. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 14 The present invention provides a technical solution: a disassembly device for repairing a gear reducer, comprising a base 1, an intermittent divider 11 fixedly installed inside the base 1, a rotating disk 12 fixedly installed at the upper end of the intermittent divider 11, and the rotating disk 12 rotatingly contacting the upper surface of the base 1. The upper end of the rotating disk 12 is provided with a plurality of first mounting slots 13 and a plurality of second mounting slots 14 in a ring array. The plurality of first mounting slots 13 and the plurality of second mounting slots 14 are alternately distributed. Each first mounting slot 13 is fixedly installed with a positioning mold base 15 for placing the reducer housing seat 16. The reducer housing seat 16 is snapped into the cavity of the positioning mold base 15. An annular support seat is fixedly installed at the bottom of the inner cavity of the positioning mold base 15. The diameter of the annular support seat is larger than the diameter of the bearing seat hole, so it will not hinder the operation of disassembling the bearing. Each second mounting slot 14 is fixedly installed with a disassembly mold base 17 for supporting the bearing body 161. The bottom of the disassembly mold base 17 is provided with a circular through hole. The diameter of the circular through hole is larger than the outer diameter of the inner ring of the bearing body 161, and the diameter of the circular through hole is smaller than the outer diameter of the outer ring of the bearing body 161. During disassembly, the end of the reducer housing 16 faces downward, so that the end of the reducer housing 16 abuts against the annular support seat. The bearing bore diameter of the reducer housing 16 is coaxial with the annular support seat, so that the bearing body 161 can move upward and separate from the reducer housing 16. A support frame 2 is provided on the side of the base 1. A hydraulic cylinder 3 is fixedly installed on the upper end of the support frame 2. The hydraulic cylinder 3 passes through the top of the support frame 2 from top to bottom. A lifting frame 31 is fixedly installed on the lower end of the inner rod of the hydraulic cylinder 3. A limit mechanism and a pulling column 5 are fixedly connected to the bottom of the lifting frame 31. A pulling mechanism for disassembling the bearing body 161 is installed on the lower end of the pulling column 5.

[0023] The limiting mechanism is used to lock the reducer housing base 16 above. The positioning mold base 15 and the limiting mechanism work together to limit the reducer housing base 16 and prevent the reducer housing base 16 from shaking when the bearing body 161 is disassembled. The diameter of the pull-out column 5 is smaller than the inner diameter of the bearing body 161; The rotating disk 12 is driven to rotate intermittently by the intermittent divider 11. The sum of the number of the first mounting slot 13 and the second mounting slot 14 is n. The angle of rotation of the rotating disk 12 each time is 360° / n. The number of first mounting slots 13 and second mounting slots 14 is the same, and the number of both first mounting slots 13 and second mounting slots 14 is preferably four. At this time, the intermittent divider 11 drives the rotating disk 12 to rotate at an angle of forty-five degrees each time.

[0024] Please see Figures 1 to 3The limiting mechanism includes a slide groove 21 on the side of the support frame 2, and symmetrical limiting grooves 22 on the inner side of the slide groove 21. A limiting frame 33 is slidably installed between the two symmetrical limiting grooves 22. A limiting sleeve 34 is fixedly installed on each positioning mold base 15. The limiting frame 33 is movably inserted into the adjacent limiting sleeve 34. When a positioning mold base 15 rotates to the bottom of the pull column 5, the opening of the upper limiting sleeve 34 of the positioning mold base 15 is aligned with the end of the limiting frame 33. A drive frame 4 is fixedly installed at the lower end of the lifting frame 31. The drive frame 4 and the pull column 5 are respectively installed at both ends of the bottom of the lifting frame 31. A squeezing groove is opened on the side of the drive frame 4. A transmission rod 44 is slidably installed in the squeezing groove. The two ends of the transmission rod 44 are respectively fixedly connected to the inner side wall of the limiting frame 33. A clearance groove is opened in the limiting frame 33 to avoid the drive frame 4, so as not to hinder the up and down movement of the drive frame 4.

[0025] The inner sidewall of the support frame 2 is symmetrically provided with guide grooves 23, and the side of the lifting frame 31 is symmetrically fixedly connected with guide plates 32. The guide plates 32 and the adjacent guide grooves 23 are slidably connected up and down.

[0026] The lifting frame 31 moves up and down by extending and retracting the inner rod of the hydraulic cylinder 3. The lifting frame 31 drives the guide plate 32 to slide up and down along the guide groove 23, thereby enabling the lifting frame 31 to drive the drive frame 4 and the pulling column 5 to move up and down stably.

[0027] Please see Figure 2 and Figure 3 The extrusion groove is composed of a first vertical groove 41, an inclined groove 42, and a second vertical groove 43. The first vertical groove 41 is located at the upper end of the drive frame 4, the inclined groove 42 is located in the middle of the drive frame 4, and the second vertical groove 43 is located at the lower end of the drive frame 4. The two ends of the inclined groove 42 are connected to the first vertical groove 41 and the second vertical groove 43, respectively.

[0028] Initially, the inner rod of the hydraulic cylinder 3 is in a retracted state. At this time, the lifting frame 31 drives the drive frame 4 to move up to the top, and the transmission rod 44 is in the second vertical groove 43. When the lifting frame 31 drives the drive frame 4 to move downward, the second vertical groove 43 moves downward along the transmission rod 44. When the second vertical groove 43 separates from the transmission rod 44, the inclined groove 42 moves downward along the transmission rod 44. The inclined groove 42 pushes the transmission rod 44 to move closer to the positioning mold base 15. The transmission rod 44 drives the end of the limiting frame 33 to insert into the limiting sleeve 34. At the same time, the lower surface of the limiting frame 33 contacts the upper surface of the reducer housing base 16. As the lifting frame 31 continues to move downward, when the connection between the inclined groove 42 and the first vertical groove 41 contacts the transmission rod 44, the lower end of the pulling column 5 has not yet been inserted into the inner ring of the bearing body 161. At the same time, the drive frame 4 continues to move downward, and the limit frame 33 will no longer move. At this time, the lifting frame 31 continues to move downward, the first vertical groove 41 slides downward along the transmission rod 44, and the lower end of the pulling column 5 passes downward through the inner ring of the bearing body 161. When the lower end of the pulling mechanism contacts the bottom of the inner cavity of the positioning mold seat 15, the lifting frame 31 continues to move downward, so that the pulling mechanism moves out of the pulling column 5.

[0029] When the lifting frame 31 moves upward, the pulling column 5 drives the pulling mechanism to move upward a certain distance, and the pulling mechanism contacts the lower surface of the inner ring of the bearing body 161. At this time, the lifting frame 31 continues to move upward, and the pulling mechanism drives the bearing body 161 to move upward, while the reducer housing seat 16 is restricted from moving upward, thereby separating the bearing body 161 from the reducer housing seat 16 and completing the disassembly of the bearing body 161. When the pulling mechanism moves the bearing body 161 out of the bearing bore, the transmission rod 44 contacts the upper end of the inclined groove 42, and the lifting frame 31 continues to move upward. The bearing body 161 continues to move upward through the pulling column 5 and the pulling mechanism. The drive frame 4 pushes the transmission rod 44 and the limiting frame 33 away from the positioning mold base 15, so that the limiting frame 33 moves away from the top of the positioning mold base 15 until the second vertical groove 43 slides into contact with the transmission rod 44.

[0030] When it is necessary to remove the bearing body 161 from the pull-out column 5, the rotary disk 12 is rotated by the intermittent divider 11, so that a disassembly mold 17 is rotated to the direct under the pull-out column 5. At this time, the pull-out column 5 and the circular through hole of the disassembly mold 17 are coaxial. The inner rod of the hydraulic cylinder 3 extends upward, and the lifting frame 31 drives the bearing body 161 to move downward through the pulling column 5 until the bearing body 161 contacts the disassembly mold base 17. At this time, the pulling column 5 continues to move downward, causing the pulling mechanism to retract into the pulling column 5. Then, the lifting frame 31 is moved upward. Since the pulling mechanism retracts into the pulling column 5, the pulling column 5 will not drive the bearing body 161 to move upward synchronously when it moves upward, thus completing the disassembly of the bearing body 161.

[0031] Please see Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 10 , Figure 12 and Figure 14The pulling mechanism includes a cylindrical groove 51 formed inside the pulling column 5. The cylindrical groove 51 extends downward through the bottom of the pulling column 5. A lifting groove 52 is formed at the upper end of the cylindrical groove 51. The lifting groove 52 extends upward through the upper end of the pulling column 5. An annular cavity 53 is formed on the inner wall of the cylindrical groove 51. Multiple contraction grooves 54 are formed in an annular array at the lower end of the cylindrical surface of the pulling column 5. Multiple strip grooves 55 are formed in an annular array at the bottom of the pulling column 5. The number of strip grooves 55 is the same as the number of contraction grooves 54. The strip grooves 55 are connected to the cylindrical groove 51 and the contraction grooves 54 respectively. A locking groove 56 is formed on the inner wall of the lifting groove 52. A pulling claw 6 is slidably installed inside the shrinkage groove 54. The pulling claw 6 is distributed in an L-shape. The lower end of the pulling claw 6 can extend out through the pulling column 5. The two sides of the pulling claw 6 are provided with protruding edges. A shrinkage spring 61 is fixedly installed on the side of the edge. One side of the shrinkage spring 61 abuts against the inner sidewall of the shrinkage groove 54. The shrinkage spring 61 applies elastic force to the edge, so that the pulling claw 6 maintains the tendency to move into the shrinkage groove 54. The pull column 5 is equipped with an ejection mechanism for pushing out the pull gripper 6.

[0032] A self-locking mechanism is installed at the upper end of the ejection mechanism. The self-locking mechanism is used to lock the position of the ejection mechanism, so that the ejection mechanism can firmly push one end of the pulling claw 6 out of the pulling column 5. An unlocking mechanism is installed on the side of the pulling column 5. The unlocking mechanism is used to release the self-locking mechanism from locking the ejection mechanism, so that the self-locking mechanism and the pulling claw 6 are reset, and the pulling claw 6 retracts back into the shrinkage groove 54.

[0033] Please see Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 10 , Figure 12 and Figure 14 The ejection mechanism includes a smooth rod 62 slidably installed in a cylindrical groove 51. The lower end of the smooth rod 62 is fixedly connected to multiple push plates 63 in a ring array. The number of push plates 63 is the same as the number of strip grooves 55. Each push plate 63 is slidably connected to the adjacent strip groove 55. The upper end of the push plate 63 near the pulling claw 6 is inclined. An annular plate 64 is fixedly sleeved on the outside of the smooth rod 62. The upper end of the annular plate 64 abuts against a downward push spring 65. The upper end of the downward push spring 65 abuts against the top of the annular cavity 53. The downward push spring 65 is sleeved on the outside of the smooth rod 62 and applies a downward elastic force to the annular plate 64. The upper end of the smooth rod 62 extends into the lifting groove 52 and is fixedly connected to a movable seat 66. The movable seat 66 is slidably connected to the lifting groove 52. A movable groove 67 is opened on one side of the movable seat 66, and a self-locking mechanism is installed in the movable groove 67.

[0034] When disassembling the bearing body 161, the lower end of the pull column 5 passes through the inner side of the inner ring of the bearing body 161. When the lower end of the pull clamp 6 is below the bearing body 161, the bottom of the smooth rod 62 is just abutting against the bottom of the inner cavity of the positioning mold base 15. The pull column 5 continues to move downward. At this time, the pull column 5 slides downward along the smooth rod 62, causing the annular cavity 53 to slide downward along the annular plate 64, causing the pull column 5 to squeeze the push spring 65. The strip groove 55 at the lower end of the pull column 5 slides downward along the push plate 63. At the same time, the pull column 5 drives the pull clamp. The claw 6 moves downward. When the lower end of the pulling claw 6 contacts the inclined surface of the push plate 63, the pulling column 5 continues to drive the pulling claw 6 to move downward. At this time, the push plate 63 pushes the downward-moving pulling claw 6 to move outward along the shrinkage groove 54, so that one end of the pulling claw 6 extends outward along the pulling column 5 until the side of the pulling claw 6 abuts against the side of the push plate 63. The pulling claw 6 squeezes the shrinkage spring 61, and at the same time aligns the locking groove 56 with the self-locking mechanism, so that the self-locking mechanism is engaged with the locking groove 56, thereby fixing the light rod 62 and the pulling column 5 relatively. At this time, the pulling column 5 moves upward, and the smooth rod 62 moves upward synchronously. There is no relative sliding between the two, so that the push plate 63 can firmly hold the pulling claw 6, preventing the pulling claw 6 from moving into the shrinkage groove 54. The pulling column 5 drives the pulling claw 6 to lock at the lower end of the bearing body 161, and the reducer housing seat 16 is limited. The pulling claw 6 drives the bearing body 161 to move upward, so that the bearing body 161 is separated from the reducer housing seat 16, thereby completing the disassembly of the bearing body 161.

[0035] Please see Figure 4 , Figure 6 , Figure 10 , Figure 12 and Figure 13 The self-locking mechanism includes a locking block 7 that is slidably installed in the movable groove 67. A locking spring 71 is installed on one side of the locking block 7. One side of the locking spring 71 abuts against the movable groove 67. The locking spring 71 applies a spring force to the locking block 7, so that the locking block 7 always maintains the tendency to move outward along the movable groove 67. A ball is rolled on the end of the locking block 7 away from the locking spring 71. When the locking block 7 is aligned with the locking groove 56, the locking block 7 is engaged in the locking groove 56 under the action of the locking spring 71. The spring force of the locking spring 71 is less than the spring force of the push spring 65. When the light rod 62 slides relative to the pull post 5, the movable seat 66 slides up and down along the lifting groove 52, the locking block 7 retracts into the movable groove 67, and at the same time, the ball at one end of the locking block 7 rolls along the inner wall of the lifting groove 52 to reduce friction.

[0036] When disassembling the bearing body 161, the pull column 5 slides down along the smooth rod 62. The pull column 5 drives the lifting groove 52 to slide down along the movable seat 66. When the side of the push plate 63 abuts against the side of the pull claw 6, the lower end of the pull claw 6 extends out. At this time, the locking groove 56 is aligned with the locking block 7. Under the action of the elastic force of the locking spring 71, the locking block 7 is engaged with the locking groove 56, thereby fixing the smooth rod 62 and the pull column 5 relatively. When it is necessary to separate the bearing body 161 from the pull column 5, the locking block 7 retracts into the movable groove 67, separating the locking block 7 from the locking groove 56. At this time, the push spring 65 pushes the annular plate 64 to move downward. The annular plate 64 drives the push plate 63 to slide downward along the strip groove 55 through the smooth rod 62, separating the push plate 63 from the pull gripper 6. Under the action of the elastic force of the retraction spring 61, the pull gripper 6 is pushed to retract into the retraction groove 54. At this time, when the pull column 5 moves upward, the pull gripper 6 will not drive the bearing body 161 to move upward, thus completing the separation of the pull column 5 from the bearing body 161.

[0037] Please see Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 11 and Figure 13 The unlocking mechanism includes a concave frame 72 fixedly installed on the side of the pull-out column 5. A pressing rod 73 is slidably installed on the side of the concave frame 72. One end of the pressing rod 73 extends to the inner side of the concave frame 72. A limiting plate 74 and a return spring 75 are sleeved on the outer side of the inner end of the pressing rod 73. The limiting plate 74 is fixedly connected to the pressing rod 73. The two ends of the return spring 75 abut against the pull-out column 5 and the limiting plate 74 respectively. The return spring 75 applies elastic force to the limiting plate 74, so that the pressing rod 73 and the limiting plate 74 tend to move away from the pull-out column 5. One end of the pressing rod 73 passes through the pull-out column 5 and extends into the locking groove 56. The pressing rod 73 is slidably connected to the pull-out column 5. A roller 76 is rotatably installed on the end of the pressing rod 73 away from the pull-out column 5 through a roller frame. A pressing plate 18 is fixedly installed on the upper end of the disassembly mold base 17. A pressing slope is provided on the upper end of the pressing plate 18.

[0038] When the disassembly mold base 17 causes the extrusion plate 18 on it to rotate to below the roller 76, the extrusion plate 18 is in the path of the roller 76 moving downward.

[0039] When it is necessary to separate the bearing body 161 from the pulling column 5, the intermittent divider 11 and the rotating disk 12 work together to rotate the disassembly mold base 17 to below the pulling column 5, causing the pulling column 5 to move the bearing body 161 downwards. When the bearing body 161 contacts the disassembly mold base 17, the roller 76 contacts the extrusion slope of the extrusion plate 18. The pulling column 5 continues to move downwards, causing the roller 76 to roll downwards along the extrusion slope of the extrusion plate 18, so that the roller 76 is pushed by the extrusion plate 18 against the extrusion plate 18. As the concave frame 72 moves, the roller 76 drives the pressing rod 73 to insert into the locking groove 56, causing the pressing rod 73 to push the locking block 7 out of the locking groove 56, thereby releasing the self-locking mechanism from locking the smooth rod 62. Under the action of the downward spring 65, the smooth rod 62 moves downward. When the pressing rod 73 moves, it drives the limiting plate 74 to press the reset spring 75. When the pulling column 5 moves upward to reset, the reset spring 75 pushes the pressing rod 73 back to reset, waiting for the next unlocking operation.

[0040] The limiting frame 33 has a notch, through which the bearing body 161 can easily pass. When the bearing body 161 separates from the pull-out column 5, the limiting frame 33 will not cause any obstruction.

[0041] Working principle: When separating the bearing body 161 from the reducer housing 16, place the reducer housing 16 in the positioning mold 15 with its end facing down; start the intermittent divider 11, so that the intermittent divider 11 drives the rotating disk 12 to rotate intermittently, and through the rotating disk 12, drive the positioning mold 15 and the disassembly mold 17, which are equipped with the reducer housing 16, to rotate alternately to directly below the pulling column 5. When the positioning mold base 15, which houses the reducer housing 16, is directly below the pulling column 5, the pulling column 5 is coaxial with the bearing body 161 inside the reducer housing 16. At the same time, the opening of the limiting sleeve 34 on the positioning mold base 15 is aligned with the end of the limiting frame 33. The hydraulic cylinder 3 is activated, causing the inner rod to drive the lifting frame 31 to descend. The lifting frame 31 drives the drive frame 4 and the pulling column 5 to move down synchronously. The extrusion groove on the drive frame 4 slides along the transmission rod 44. At the same time, the inclined groove 42 pushes the transmission rod 44 to move, so that the end of the limiting frame 33 is inserted into the limiting sleeve 34. The lower surface of the limiting frame 33 presses against the upper surface of the reducer housing 16. The limiting frame 33 and the positioning mold base 15 cooperate to limit the reducer housing 16. During the downward movement of the lifting frame 31, the lower end of the pulling column 5 passes through the inner ring of the bearing body 161. The pulling column 5 drives the pulling mechanism to insert into the inner ring. When the lower end of the pulling claw 6 is below the inner ring, the lower end of the smooth rod 62 in the pulling mechanism abuts against the bottom of the inner cavity of the positioning mold base 15. The pulling column 5 drives the pulling claw 6 to continue to move downward. The pulling claw 6 is pushed outward by the push plate 63. When the pulling claw 6 extends outward to its maximum, it can still pass through the bearing hole without causing obstruction. At the same time, the locking block 7 is engaged in the locking groove 56, so that the smooth rod 62 and the pulling column 5 are relatively fixed, and the pulling claw 6 is below the inner ring of the bearing body 161. The inner rod of the hydraulic cylinder 3 retracts, causing the lifting frame 31 to rise. The pulling column 5 pulls the bearing body 161 upward through the pulling claw 6. Since the reducer housing seat 16 is limited and cannot move upward, the bearing body 161 is pulled out of the reducer housing seat 16. After the bearing body 161 is completely pulled out, the inclined groove 42 on the drive frame 4 pushes the transmission rod 44 to reset, causing the limit frame 33 to disengage from the limit sleeve 34 and reset, thus releasing the limit frame 33 from limiting the reducer housing seat 16.

[0042] The intermittent divider 11 is activated, causing the rotating disk 12 to rotate. The rotating disk 12 rotates a disassembly die holder 17 to a position directly below the drawing column 5, at which point the drawing column 5 is coaxial with the circular through hole. The hydraulic cylinder 3 is activated again, causing the lifting frame 31 to descend. The bearing body 161 moves downwards with the drawing column 5. When the bearing body 161 contacts the disassembly die holder 17, it is stopped and will not move further downwards. Simultaneously, the roller 76 touches the extrusion slope of the extrusion plate 18. The lifting frame 31 drives the drawing column 5 to continue descending, causing the roller 76 to roll along the extrusion slope of the extrusion plate 18 until it contacts the side of the extrusion plate 18. During this process, the extrusion plate 18 pushes the roller 76 closer to the drawing column. As the pull column 5 moves, the roller 76 pushes the locking block 7 out of the locking groove 56 through the pressing rod 73, unlocking the self-locking mechanism. The push spring 65 pushes the light rod 62 down, and the push plate 63 separates from the pull gripper 6. The pull gripper 6 retracts under the action of the retraction spring 61, causing the pull gripper 6 to retract into the pull column 5. At this time, the lifting frame 31 rises and resets, and the pull column 5 separates from the bearing body 161. The bearing body 161 remains on the disassembly mold base 17, completing the disassembly. Through the alternating positioning mold base 15 and disassembly mold base 17, the pull disassembly and unloading operations of the bearing can be carried out cyclically, greatly improving the work efficiency and enabling the disassembly of the bearing body 161 without damaging the reducer housing 16.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disassembly device for repairing a gear reducer, comprising a base (1), wherein an intermittent divider (11) is fixedly installed inside the base (1), and a rotating disk (12) is fixedly installed at the upper end of the intermittent divider (11), wherein the rotating disk (12) is in rotational contact with the upper surface of the base (1); Its features are: The upper end of the rotating disk (12) is provided with a plurality of first mounting slots (13) and a plurality of second mounting slots (14) arranged in a ring array. The plurality of first mounting slots (13) and the plurality of second mounting slots (14) are alternately distributed. Each first mounting slot (13) is fixedly installed with a positioning mold base (15) for placing the reducer housing base (16). An annular support base is fixedly installed at the bottom of the inner cavity of the positioning mold base (15). Each second mounting slot (14) is fixedly installed with a disassembly mold base (17) for supporting the bearing body (161). A circular through hole is opened through the bottom of the disassembly mold base (17). The base (1) is provided with a support frame (2) on its side. A hydraulic cylinder (3) is fixedly installed on the upper end of the support frame (2). A lifting frame (31) is fixedly installed on the lower end of the inner rod of the hydraulic cylinder (3). A limit mechanism and a pulling column (5) are fixedly connected to the bottom of the lifting frame (31). A pulling mechanism for disassembling the bearing body (161) is installed on the lower end of the pulling column (5). The limiting mechanism includes a slide groove (21) opened on the side of the support frame (2), and a limiting groove (22) is symmetrically opened on the inner side of the slide groove (21). A limiting frame (33) is slidably installed between the two symmetrical limiting grooves (22). A limiting sleeve (34) is fixedly installed on each positioning mold base (15). The limiting frame (33) is movably inserted into the adjacent limiting sleeve (34). The lower end of the lifting frame (31) is fixedly installed with a drive frame (4). The drive frame (4) and the pull column (5) are respectively installed at both ends of the bottom of the lifting frame (31). The side of the drive frame (4) is provided with an extrusion groove. A transmission rod (44) is slidably installed in the extrusion groove. The two ends of the transmission rod (44) are respectively fixedly connected to the inner side wall of the limiting frame (33). The pulling mechanism includes a cylindrical groove (51) inside the pulling column (5), a lifting groove (52) at the upper end of the cylindrical groove (51), an annular cavity (53) on the inner wall of the cylindrical groove (51), a plurality of contraction grooves (54) in an annular array at the lower end of the cylindrical surface of the pulling column (5), a plurality of strip grooves (55) in an annular array at the bottom of the pulling column (5), the strip grooves (55) communicating with the cylindrical groove (51) and the contraction grooves (54) respectively, and a locking groove (56) on the inner wall of the lifting groove (52). A pulling claw (6) is slidably installed in the shrinkage groove (54). The two sides of the pulling claw (6) are provided with protruding edges. A shrinkage spring (61) is fixedly installed on the side of the edge. One side of the shrinkage spring (61) abuts against the inner wall of the shrinkage groove (54). The pull column (5) is equipped with an ejection mechanism for pushing out the pull gripper (6).

2. The disassembly device for repairing a gear reducer according to claim 1, characterized in that: The inner sidewall of the support frame (2) is symmetrically provided with guide grooves (23), and the side of the lifting frame (31) is symmetrically fixedly connected with guide plates (32). The guide plates (32) are slidably connected to the adjacent guide grooves (23).

3. The disassembly device for repairing a gear reducer according to claim 1, characterized in that: The extrusion groove is composed of a first vertical groove (41), an inclined groove (42), and a second vertical groove (43). The first vertical groove (41) is located at the upper end of the drive frame (4), the inclined groove (42) is located at the middle position of the drive frame (4), and the second vertical groove (43) is located at the lower end of the drive frame (4). The two ends of the inclined groove (42) are connected to the first vertical groove (41) and the second vertical groove (43) respectively.

4. The disassembly device for repairing a gear reducer according to claim 1, characterized in that: The upper end of the ejection mechanism is equipped with a self-locking mechanism, and the side of the pull-out column (5) is equipped with an unlocking mechanism.

5. A disassembly device for repairing a gear reducer according to claim 4, characterized in that: The ejection mechanism includes a light rod (62) slidably installed in a cylindrical groove (51). The lower end of the light rod (62) is fixedly connected to multiple push plates (63) in a ring array. Each push plate (63) is slidably connected to the adjacent strip groove (55). The upper end of the push plate (63) near the pull-out claw (6) is inclined. An annular plate (64) is fixedly sleeved on the outside of the light rod (62). The upper end of the annular plate (64) abuts against a push spring (65). The upper end of the push spring (65) abuts against the top of the annular cavity (53). The upper end of the light rod (62) extends into the lifting groove (52) and is fixedly connected to a movable seat (66). The movable seat (66) is slidably connected to the lifting groove (52). A movable groove (67) is opened on one side of the movable seat (66). The self-locking mechanism is installed in the movable groove (67).

6. A disassembly device for repairing a gear reducer according to claim 5, characterized in that: The self-locking mechanism includes a locking block (7) that is slidably installed in the movable groove (67). A locking spring (71) is installed on one side of the locking block (7). One side of the locking spring (71) abuts against the movable groove (67). A ball is rolled on the end of the locking block (7) away from the locking spring (71).

7. A disassembly device for repairing a gear reducer according to claim 6, characterized in that: The unlocking mechanism includes a concave frame (72) fixedly installed on the side of the pull column (5). A pressing rod (73) is slidably installed on the side of the concave frame (72). One end of the pressing rod (73) extends to the inside of the concave frame (72). A limiting plate (74) and a return spring (75) are sleeved on the outside of the end of the pressing rod (73) on the inside of the concave frame (72). The limiting plate (74) is fixedly connected to the pressing rod (73). The two ends of the return spring (75) abut against the pull column (5) and the limiting plate (74) respectively. One end of the pressing rod (73) passes through the pull column (5) and extends into the locking groove (56). A roller (76) is rotatably installed on the end of the pressing rod (73) away from the pull column (5) through the roller frame. A pressing plate (18) is fixedly installed on the upper end of the disassembly mold base (17). A pressing slope is provided on the upper end of the pressing plate (18).

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