Linear motor counterweight device

Abstract

The utility model discloses a linear motor counterweight device which comprises a counterweight box, an adjusting device is installed on the counterweight box, the adjusting device comprises a fixed sleeve, a shifting sleeve, a moving rod, a moving sleeve, a moving groove, an inserting groove, an inserting rod, a connecting spring, a pressing plate, a moving block and a moving plate, the moving rod penetrates through the fixed sleeve in a sliding mode, the moving groove is formed in the fixed sleeve in an inclined mode, and the moving block is arranged in the moving sleeve. The inserting groove is formed in the moving block, the inserting rod is connected to one side of the pressing plate, the moving block is connected to one side of the moving plate, a locking mechanism is installed on the outer side of the fixing sleeve, and the locking mechanism comprises a transverse plate, an arc-shaped rod, an arc-shaped spring, a return block, a matching groove, an arc-shaped hole, the fixing block, a longitudinal plate and a matching plate. According to the utility model, not only can the thrust applied by the spring be flexibly adjusted according to linear motors of different models and working condition requirements, but also the long-term stability of parameters after adjustment can be ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of linear motor counterweight devices, and more specifically, it relates to a linear motor counterweight device. Background Technology

[0002] In the field of linear motor counterweight devices, there are still many technical problems that need to be solved. These problems seriously restrict the performance and safety reliability of linear motors in various application scenarios.

[0003] In existing technology, a linear motor counterweight device, currently disclosed in Chinese utility model patent application number CN202223485820.3, involves adding symmetrical counterweight sleeves on both sides of the primary and secondary stages. A counterweight block and a shock-absorbing spring are slidably connected inside the counterweight sleeves. These are fixedly connected to a transmission wheel on the outer wall of the secondary stage via a transmission steel wire. This design allows the counterweight block to be pulled by the transmission steel wire to reduce the force exerted by the falling sleeve when the secondary stage experiences a power outage at a high point. However, this design has a fundamental technical flaw: the internal shock-absorbing springs can only provide a solid... A fixed thrust cannot be adapted to the actual needs of different linear motor models. In practical applications, different linear motor models have different requirements for protection systems due to their varying weights, operating speeds, and load characteristics. Furthermore, even for the same model of linear motor, the requirements for protection systems will change under different working environments and load conditions. This rigid and fixed thrust design cannot flexibly cope with the changing working conditions, seriously affecting the versatility and adaptability of the equipment. This forces users to configure multiple systems for different scenarios, which not only increases equipment costs but also reduces ease of use.

[0004] Even more worrying is that, in response to the above problems, some manufacturers have attempted to dynamically adjust the thrust of the shock-absorbing springs by adding adjustment devices. However, these improved designs are often too simple and crude, with serious structural stability defects. During the high-frequency and high-intensity operation of the linear motor, the equipment will inevitably generate vibrations of various frequencies and intensities. These vibrations will be transmitted to the adjustment device through the mechanical structure, causing the components to gradually loosen and the connections to have slight displacements. As time goes by, the loosening of the adjustment device will continue to intensify, eventually leading to a significant change in the carefully adjusted protective thrust. Finally, this change in thrust will not only reduce the protective effect, but may also cause instability in the operation of the linear motor, and may even cause it to lose its due protective function in the event of a power outage, resulting in serious safety hazards and economic losses. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a linear motor counterweight device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a linear motor counterweight device, comprising a counterweight box, an adjusting device mounted on the counterweight box, the adjusting device comprising a fixed sleeve, a shifting sleeve, a shifting rod, a shifting sleeve, a shifting groove, a slot, a plug rod, a connecting spring, a pressure plate, a shifting block, and a shifting plate. The fixed sleeve is fixedly installed on the top of the counterweight box, the shifting sleeve is disposed outside the fixed sleeve, the shifting rod slides through the fixed sleeve, the shifting sleeve is movably disposed within the fixed sleeve, the shifting groove is inclinedly formed within the fixed sleeve, the slot is formed within the shifting block, the plug rod is fixedly connected to one side of the pressure plate, and the plug rod slides into the slot, and the two ends of the connecting spring are respectively... The device is connected to a pressing plate and a moving block. The moving block is fixedly connected to one side of the moving plate. The moving plate is slidably installed in the moving groove. A locking mechanism is installed on the outside of the fixed sleeve. The locking mechanism includes a transverse plate, an arc-shaped rod, an arc-shaped spring, a return block, a mating groove, an arc-shaped hole, a fixed block, a longitudinal plate, and a mating plate. The three transverse plates are fixedly installed on one side of the shifting sleeve through the longitudinal plate. The arc-shaped rod is fixedly connected to one side of the return block. The arc-shaped spring is movably sleeved on the outside of the arc-shaped rod. The return block is fixedly installed on one side of the mating plate. The mating groove is opened on the mating plate. The arc-shaped hole is opened in the fixed block. The fixed block is fixedly installed on the outside of the fixed sleeve. The mating plate is rotatably installed on the outside of the fixed sleeve.

[0009] The present invention is further configured such that a counterweight block is slidably disposed in the counterweight box, a guide wheel is rotatably disposed on the side wall of the counterweight box, a steel wire rope is movably disposed between the guide wheels, and an observation slot is provided on one side of the counterweight box.

[0010] The present invention is further provided that the movable rod has a clearance groove.

[0011] The present invention is further configured such that a push plate is provided above the counterweight, the push plate is in contact with the counterweight, a connecting plate is connected to the bottom end of the moving rod, a spring is connected above the push plate, the top end of the spring is connected to the lower end face of the connecting plate, and the wire rope moves through the clearance groove and the push plate and is connected to the top end of the counterweight.

[0012] The present invention is further configured such that a movable block is connected to one side of the movable block, and a movable groove is provided on one side of the movable sleeve. The movable groove is adapted to the movable block, thereby ensuring the precise movement of the movable block.

[0013] The present invention is further configured such that a displacement groove is provided on the side wall of the fixed sleeve, a displacement block is slidably provided in the displacement groove, and the inner wall of the displacement sleeve is fixedly connected to the outer wall of the moving sleeve through the displacement block, thereby ensuring the linkage between the displacement sleeve and the moving sleeve.

[0014] The present invention is further configured such that a thrust bearing is detachably provided on one side of the mating plate, a push spring is connected to one side of the shifting sleeve, and the other end of the push spring is connected to the thrust bearing, thereby ensuring the stable sliding and resetting of the shifting sleeve.

[0015] The present invention is further configured such that a plurality of anti-slip strips are fixedly provided on one side of the pressing plate. After the anti-slip strips are pressed, they form strong friction with the outer wall of the moving rod, ensuring that the set parameters will not deviate due to vibration during equipment operation.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a linear motor counterweight device, which has the following features:

[0018] Beneficial effects:

[0019] 1. The overall device, through the ingenious combination of the counterweight box, counterweight block, guide wheel, wire rope, and observation slot, constructs a highly efficient and reliable linear motor safety protection system. The counterweight box, as the basic carrier of the overall structure, provides a stable sliding space for the counterweight block. The guide wheel effectively reduces the frictional loss of the wire rope during movement, extending the service life of the system. The wire rope passes through the clearance slot and push plate to connect to the counterweight block, forming a complete force transmission link. The design of the observation slot facilitates the operator to monitor the position status of the counterweight block in real time, enhancing the intuitiveness and safety of equipment use. The counterweight block compresses the spring through the push plate, generating an upward reaction force. This force transmission mechanism effectively slows down the descent speed of the linear motor and slider, preventing damage to the equipment due to rapid falls. The design of the overall device not only meets the functional requirements of power failure protection for the linear motor but also achieves smooth energy conversion through mechanical principles, significantly improving the safety and reliability of the equipment and providing a solid guarantee for the stable operation of the linear motor.

[0020] 2. The adjustment device consists of precision components such as a fixed sleeve, a shifting sleeve, a moving rod, a moving sleeve, a moving groove, a slot, a plug rod, a connecting spring, a pressure plate, a moving block, and a moving plate. It achieves precise control of the protective force. The inclined design of the moving groove allows the moving plate to drive the moving block to generate radial displacement during sliding. The cooperation mechanism between the slot and the plug rod, combined with the elastic characteristics of the connecting spring, forms a precise clamping system for the moving rod. By adjusting the position of the moving rod, the distance between the connecting plate and the push plate can be changed, thereby controlling the degree of spring compression and precisely adjusting the magnitude of the thrust applied by the spring to the counterweight. This innovative design of the adjustment mechanism allows the system to quickly adjust the most suitable protective parameters according to the characteristics of different linear motor models and actual working conditions, solving the technical defect of fixed spring thrust in traditional equipment. The entire adjustment process is simple to operate and the effect is intuitive, significantly improving the applicability and flexibility of the equipment. It provides customized protection parameters for different application scenarios, greatly enhancing the practical value of the device.

[0021] 3. The locking mechanism, through the synergistic action of the transverse plate, arc-shaped rod, arc-shaped spring, return block, mating groove, arc-shaped hole, fixing block, longitudinal plate, and mating plate, constructs a fixed locking system. The transverse plate is fixed to one side of the shifting sleeve by the longitudinal plate, forming a stable support structure; the combination of the arc-shaped rod and arc-shaped spring provides the return block with elastic return function; the careful design of the mating groove and arc-shaped hole ensures the precise conversion between rotation and linear motion; the cooperation between the fixing block and the mating plate achieves stable locking of the overall moving structure. After adjustment, the locking mechanism, through the principle of multiple positioning, makes the shifting sleeve, moving sleeve, moving block, and pressing plate form a highly stable whole. This innovative multi-locking design completely solves the problem of insufficient stability caused by the simple structure of traditional adjustment devices, effectively prevents structural loosening and parameter drift caused by vibration, and maintains the long-term stability of adjustment parameters. The precision and reliability of the locking mechanism significantly improves the operational safety and service life of the equipment, providing a solid foundation for the linear motor counterweight system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a linear motor counterweight device according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the adjusting device and locking mechanism in this utility model;

[0025] Figure 4 This is a cross-sectional view of the adjusting device and locking mechanism in this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the shift sleeve and the moving block in this utility model.

[0027] In the diagram: 1. Counterweight box; 2. Fixed sleeve; 3. Displacement sleeve; 4. Moving rod; 5. Moving sleeve; 6. Moving groove; 7. Slot; 8. Insert rod; 9. Connecting spring; 10. Pressing plate; 11. Moving block; 12. Moving plate; 13. Transverse plate; 14. Arc rod; 15. Arc spring; 16. Return block; 17. Mating groove; 18. Arc hole; 19. Fixed block; 20. Longitudinal plate; 21. Mating plate; 22. Counterweight block; 23. Guide wheel; 24. Wire rope; 25. Observation groove; 26. Clearance groove; 27. Push plate; 28. Connecting plate; 29. ​​Spring; 30. Movable block; 31. Movable groove; 32. Displacement groove; 33. Displacement block; 34. Thrust bearing; 35. Push spring; 36. Anti-slip strip. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A linear motor counterweight device includes a counterweight box 1, on which an adjustment device is installed. The adjustment device includes a fixed sleeve 2, a shifting sleeve 3, a moving rod 4, a moving sleeve 5, a moving groove 6, a slot 7, a plug rod 8, a connecting spring 9, a pressure plate 10, a moving block 11, and a moving plate 12. The fixed sleeve 2 is fixedly installed on the top of the counterweight box 1. The shifting sleeve 3 is disposed outside the fixed sleeve 2. The moving rod 4 slides through the fixed sleeve 2. The moving sleeve 5 is movably disposed in the fixed sleeve 2. The moving groove 6 is inclinedly opened in the fixed sleeve 2. The slot 7 is opened in the moving block 11. The plug rod 8 is fixedly connected to one side of the pressure plate 10 and slides into the slot 7. The two ends of the connecting spring 9 are respectively connected to the pressure plate 10 and the moving block 11. The moving block 11 is fixedly connected to... On one side of the movable plate 12, the movable plate 12 is slidably installed in the movable groove 6. A locking mechanism is installed on the outside of the fixed sleeve 2. The locking mechanism includes a transverse plate 13, an arc rod 14, an arc spring 15, a return block 16, a mating groove 17, an arc hole 18, a fixed block 19, a longitudinal plate 20, and a mating plate 21. The three transverse plates 13 are fixedly installed on one side of the shifting sleeve 3 through the longitudinal plate 20. The arc rod 14 is fixedly connected to one side of the return block 16. The arc spring 15 is movably sleeved on the outside of the arc rod 14. The return block 16 is fixedly installed on one side of the mating plate 21. The mating groove 17 is opened on the mating plate 21. The arc hole 18 is opened in the fixed block 19. The fixed block 19 is fixedly installed on the outside of the fixed sleeve 2. The mating plate 21 is rotatably installed on the outside of the fixed sleeve 2.

[0032] A counterweight block 22 is slidably provided in the counterweight box 1, and a guide wheel 23 is rotatably provided on the side wall of the counterweight box 1. A steel wire rope 24 is movably provided between the guide wheels 23, and an observation slot 25 is opened on one side of the counterweight box 1.

[0033] The movable rod 4 has a relief groove 26, through which the wire rope 24 moves and passes through the relief groove 26 and the push plate 27 to connect with the top of the counterweight block 22.

[0034] A push plate 27 is provided above the counterweight 22. The push plate 27 is in contact with the counterweight 22. A connecting plate 28 is connected to the bottom of the moving rod 4. A spring 29 is connected above the push plate 27. The top of the spring 29 is connected to the lower end of the connecting plate 28.

[0035] In this embodiment, when the motor unexpectedly loses power, it drives the slider to descend along the slide table. Then, the winding wheel on one side of the slide table drives the wire rope 24 to stretch. The wire rope 24 then moves along the guide wheel 23. The guide wheel 23 reduces the wear of the wire rope 24 during movement. The wire rope 24 then moves in the mating groove 17 and pulls the counterweight 22 to rise in the counterweight box 1. The counterweight 22 then pushes the top push plate 27 to move, shortening the distance between the push plate 27 and the connecting plate 28, thereby compressing the spring 29. The thrust of the spring 29 slows down the descent speed of the linear motor and the slider, thus protecting the linear motor and the slider.

[0036] Please see Figures 3-5 As a further implementation of the overall equipment: a movable block 30 is connected to one side of the movable block 11, and a movable groove 31 is opened on one side of the movable sleeve 5, which is adapted to the movable block 30.

[0037] The side wall of the fixed sleeve 2 is provided with a displacement groove 32, and a displacement block 33 is slidably disposed in the displacement groove 32. The inner wall of the displacement sleeve 3 is fixedly connected to the outer wall of the movable sleeve 5 through the displacement block 33.

[0038] A thrust bearing 34 is detachably provided on one side of the mating plate 21, and a push spring 35 is connected to one side of the shifting sleeve 3. The other end of the push spring 35 is connected to the thrust bearing 34.

[0039] Multiple anti-slip strips 36 are fixedly provided on one side of the clamping plate 10.

[0040] More specifically, when the applied thrust of spring 29 needs to be adjusted according to the actual working conditions and linear motor model, firstly, the mating plate 21 is rotated forward, causing the mating plate 21 to drive the thrust bearing 34 installed on one side and the return block 16 set on the other side to rotate forward. Then, the return block 16 will drive the arc-shaped rod 14 connected on one side to slide along the arc-shaped hole 18 opened in the fixed block 19, and the return block 16 will cooperate with the fixed block 19 to compress the arc-shaped spring 15. At the same time, the mating plate 21 will drive the mating groove 17 to rotate. When the arc-shaped spring 15 is compressed to the limit, the mating groove 17 just rotates to the position corresponding to the transverse plate 13, and then pushes the shift sleeve 3, causing the shift sleeve 3 to drive the shift block 33 set on the inner side to slide along the shift groove 32, and then shift... Position block 33 drives the movable sleeve 5 to move, causing the movable sleeve 5 to slide the movable block 11 to one side through the cooperation of the movable groove 31 and the movable block 30. Then, the movable block 11 drives the movable plate 12 connected to one side to slide along the inclined movable groove 6. Then, the movable plate 12 drives the movable block 11 to move outward, and the movable block 11 drives the movable block 30 to slide outward along the movable groove 31. At the same time, the movable block 11 drives the slot 7 opened on the inner side to move, causing the insertion rod 8 to slide relative to the slot 7. The distance between the movable block 11 and the pressure plate 10 increases, causing the connecting spring 9 to gradually return to its original position. When the connecting spring 9 is fully returned to its original position, the movable block 11 drives the pressure plate 10 to move outward through the connecting spring 9, so that the inner wall of the pressure plate 10 is no longer in contact with the inner wall of the pressure plate 10. When the outer wall of the moving rod 4 contacts the moving rod, the shifting sleeve 3 will drive the longitudinal plate 20 and the transverse plate 13 on one side to gradually enter the mating groove 17. The shifting sleeve 3 will cooperate with the thrust bearing 34 to press the push spring 35. When the moving block 11 can no longer slide, the push spring 35 is pressed to its limit. The transverse plate 13 closest to the shifting sleeve 3 just passes through the mating groove 17 and moves to the other side of the mating plate 21. Then the mating plate 21 is released, the arc spring 15 pushes the return block 16 to rotate and reset. Then the return block 16 drives the arc rod 14 to slide and reset along the arc hole 18. The return block 16 will also drive the mating plate 21 to rotate and reset. Then the mating plate 21 drives the mating groove 17 and the thrust bearing 34 installed on one side to rotate and reset in the opposite direction, so that the mating groove 17... Rotate the device to a position that does not correspond to the transverse plate 13. At this point, the longitudinal plate 20 and the transverse plate 13 closest to the displacement position cooperate to limit the displacement sleeve 3 to one side of the mating plate 21, so that the displacement sleeve 3 no longer moves. Then, move the moving rod 4 so that it slides along the fixed sleeve 2, and causes the moving rod 4 to drive the connecting plate 28 to slide in the counterweight box 1. Then, the distance between the connecting plate 28 and the push plate 27 will be stretched or shortened, causing the spring 29 to reset or be compressed, thereby increasing or decreasing the thrust exerted by the spring 29 on the push plate 27 and the counterweight block 22. When the thrust is adjusted appropriately, stop moving the moving rod 4 and rotate the mating plate 21 forward again, so that the mating plate 21 drives the mating groove 17 and the thrust bearing 34 installed on one side to rotate forward again.Furthermore, the mating plate 21 will cause the return block 16 installed on one side to rotate forward again. Then, the return block 16 will again drive the arc rod 14 to slide along the arc hole 18. The return block 16 and the fixed block 19 will cooperate to press the arc spring 15 again. When the mating groove 17 rotates to the position corresponding to the transverse plate 13 again, the push spring 35 will push the shift sleeve 3 to slide and reset. Then, the shift sleeve 3 will drive the three transverse plates 13 to slide and reset through the longitudinal plate 20. The shift sleeve 3 will also drive the moving sleeve 5 to slide and reset along the shift groove 32 through the shift block 33. The rear moving sleeve 5 pushes the moving block 11 to slide and reset. Then, the moving block 11 drives the moving plate 12 to slide and reset along the moving groove 6. The moving plate 12 will also drive the moving block 11 to converge inward, so that the moving block 11 drives the movable block 30 connected on one side to slide and reset inward along the movable groove 31. At the same time, the moving block 11 will drive the pressing plate 10 to move inward through the connecting spring 9. When the inner wall of the pressing plate 10 contacts the outer wall of the moving rod 4, the moving sleeve 3 is manually pushed to slide and reset. Then, the moving sleeve 5 continues to push the moving block 11 to slide and reset, and then the moving... The distance between block 11 and pressure plate 10 is shortened, causing the connecting spring 9 to be compressed. The moving block 11 moves the slot 7 on its inner side, causing the insertion rod 8 connected to one side of pressure plate 10 to slide into the slot 7. When the shifting sleeve 3 is fully slid-reset, the moving block 11 and pressure plate 10 press the connecting spring 9, and also press the multiple anti-slip strips 36 on the inner side of pressure plate 10, thus fixing and clamping the moving rod 4. At this time, the push spring 35 is fully reset, and the other two transverse plates 13 have just moved to the sides of the mating plate 21 respectively. Then... After the mating plate 21 is released, the arc spring 15 pushes the return block 16 to rotate and reset. Then, the return block 16 drives the arc rod 14 and the mating plate 21 to rotate and reset again. The mating plate 21 then drives the thrust bearing 34 to rotate in the opposite direction. Simultaneously, the mating plate 21 drives the mating groove 17 to rotate and reset to a position not corresponding to the transverse plate 13. Then, the longitudinal plate 20, together with the two transverse plates 13, provides limiting support for the shift sleeve 3, preventing it from sliding. This ensures the stable fixation of the moving rod 4 and guarantees the stable operation of the equipment.

[0041] In summary, during use or operation of the overall equipment: when the motor unexpectedly loses power, it drives the slider to descend along the slide table. Then, the winding wheel on one side of the slide table drives the wire rope 24 to stretch. The wire rope 24 then moves along the guide wheel 23. The guide wheel 23 reduces the wear of the wire rope 24 during movement. The wire rope 24 then moves in the mating groove 17 and pulls the counterweight 22 to rise in the counterweight box 1. The counterweight 22 then pushes the top push plate 27 to move, shortening the distance between the push plate 27 and the connecting plate 28, thereby compressing the spring 29. The thrust of the spring 29 slows down the descent speed of the linear motor and the slider, thus protecting the linear motor and the slider.

[0042] When the applied thrust of spring 29 needs to be adjusted according to the actual working conditions and the linear motor model, firstly, the mating plate 21 is rotated forward, causing the mating plate 21 to drive the thrust bearing 34 installed on one side and the return block 16 set on the other side to rotate forward. Then, the return block 16 will drive the arc-shaped rod 14 connected on one side to slide along the arc-shaped hole 18 opened in the fixed block 19, and the return block 16 will cooperate with the fixed block 19 to compress the arc-shaped spring 15. At the same time, the mating plate 21 will drive the mating groove 17 to rotate. When the arc-shaped spring 15 is compressed to the limit, the mating groove 17 just rotates to the position corresponding to the transverse plate 13, and then pushes the shift sleeve 3, causing the shift sleeve 3 to drive the shift block 33 set on the inner side to slide along the shift groove 32. Then the shift block 33 This causes the movable sleeve 5 to move, which in turn causes the movable block 11 to slide to one side through the cooperation of the movable groove 31 and the movable block 30. Then, the movable block 11 causes the movable plate 12 connected to one side to slide along the inclined movable groove 6. The movable plate 12 then causes the movable block 11 to move outward, and the movable block 11 causes the movable block 30 to slide outward along the movable groove 31. At the same time, the movable block 11 causes the slot 7 on the inner side to move, causing the insertion rod 8 to slide relative to the slot 7. The distance between the movable block 11 and the pressure plate 10 increases, causing the connecting spring 9 to gradually return to its original position. When the connecting spring 9 has fully returned to its original position, the movable block 11 causes the pressure plate 10 to move outward through the connecting spring 9, so that the inner wall of the pressure plate 10 no longer contacts the movable sleeve 5. When the outer wall of rod 4 contacts, during this process, the shifting sleeve 3 will drive the longitudinal plate 20 and transverse plate 13 on one side to gradually penetrate into the mating groove 17. The shifting sleeve 3 will also cooperate with the thrust bearing 34 to press the push spring 35. When the moving block 11 can no longer slide, the push spring 35 is pressed to its limit. The transverse plate 13 closest to the shifting sleeve 3 just passes through the mating groove 17 and moves to the other side of the mating plate 21. Then the mating plate 21 is released, and the arc spring 15 pushes the return block 16 to rotate and reset. Then the return block 16 drives the arc rod 14 to slide and reset along the arc hole 18. The return block 16 will also drive the mating plate 21 to rotate and reset. Then the mating plate 21 drives the mating groove 17 and the thrust bearing 34 installed on one side to rotate and reset in the opposite direction, so that the mating groove 17 rotates. The longitudinal plate 20 is moved to a position not corresponding to the transverse plate 13. At this point, the longitudinal plate 20 and the transverse plate 13 closest to the displacement position cooperate to limit the displacement sleeve 3 to one side of the mating plate 21, so that the displacement sleeve 3 no longer moves. Then, the moving rod 4 is moved, so that the moving rod 4 slides along the fixed sleeve 2, and the moving rod 4 drives the connecting plate 28 to slide in the counterweight box 1. Then, the distance between the connecting plate 28 and the push plate 27 will be lengthened or shortened, so that the spring 29 is reset or compressed, thereby increasing or decreasing the thrust exerted by the spring 29 on the push plate 27 and the counterweight 22. When the thrust is adjusted appropriately, the moving rod 4 is stopped, and the mating plate 21 is rotated forward again, so that the mating plate 21 drives the mating groove 17 and the thrust bearing 34 installed on one side to rotate forward again.Furthermore, the mating plate 21 will cause the return block 16 installed on one side to rotate forward again. Then, the return block 16 will again drive the arc rod 14 to slide along the arc hole 18. The return block 16 and the fixed block 19 will cooperate to press the arc spring 15 again. When the mating groove 17 rotates to the position corresponding to the transverse plate 13 again, the push spring 35 will push the shift sleeve 3 to slide and reset. Then, the shift sleeve 3 will drive the three transverse plates 13 to slide and reset through the longitudinal plate 20. The shift sleeve 3 will also drive the moving sleeve 5 to slide and reset along the shift groove 32 through the shift block 33. The rear moving sleeve 5 pushes the moving block 11 to slide and reset. Then, the moving block 11 drives the moving plate 12 to slide and reset along the moving groove 6. The moving plate 12 will also drive the moving block 11 to converge inward, so that the moving block 11 drives the movable block 30 connected on one side to slide and reset inward along the movable groove 31. At the same time, the moving block 11 will drive the pressing plate 10 to move inward through the connecting spring 9. When the inner wall of the pressing plate 10 contacts the outer wall of the moving rod 4, the moving sleeve 3 is manually pushed to slide and reset. Then, the moving sleeve 5 continues to push the moving block 11 to slide and reset, and then the moving... The distance between block 11 and pressure plate 10 is shortened, causing the connecting spring 9 to be compressed. The moving block 11 moves the slot 7 on its inner side, causing the insertion rod 8 connected to one side of pressure plate 10 to slide into the slot 7. When the shifting sleeve 3 is fully slid-reset, the moving block 11 and pressure plate 10 press the connecting spring 9, and also press the multiple anti-slip strips 36 on the inner side of pressure plate 10, thus fixing and clamping the moving rod 4. At this time, the push spring 35 is fully reset, and the other two transverse plates 13 have just moved to the sides of the mating plate 21 respectively. Then... After the mating plate 21 is released, the arc spring 15 pushes the return block 16 to rotate and reset. Then, the return block 16 drives the arc rod 14 and the mating plate 21 to rotate and reset again. The mating plate 21 then drives the thrust bearing 34 to rotate in the opposite direction. Simultaneously, the mating plate 21 drives the mating groove 17 to rotate and reset to a position not corresponding to the transverse plate 13. Then, the longitudinal plate 20, together with the two transverse plates 13, provides limiting support for the shift sleeve 3, preventing it from sliding. This ensures the stable fixation of the moving rod 4 and guarantees the stable operation of the equipment.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A counterweight device for a linear motor, comprising a counterweight box (1), characterized in that: An adjustment device is installed on the counterweight box (1). The adjustment device includes a fixed sleeve (2), a shifting sleeve (3), a moving rod (4), a moving sleeve (5), a moving groove (6), a slot (7), a plug rod (8), a connecting spring (9), a pressure plate (10), a moving block (11), and a moving plate (12). The moving rod (4) slides through the fixed sleeve (2). The moving groove (6) is inclinedly opened in the fixed sleeve (2). The slot (7) is opened in the moving block (11). The plug rod (8) is connected to one side of the pressure plate (10). The two ends of the connecting spring (9) are respectively connected to the pressure plate (10) and the moving block (11). The moving block (11) is connected to one side of the moving plate (12). A locking mechanism is installed on the outside of the fixed sleeve (2). The locking mechanism includes a transverse plate (13), an arc rod (14), an arc spring (15), a return block (16), a mating groove (17), an arc hole (18), a fixed block (19), a longitudinal plate (20), and a mating plate (21). The three transverse plates (13) are set on one side of the shifting sleeve (3) through the longitudinal plate (20). The arc rod (14) is connected to one side of the return block (16). The arc spring (15) is sleeved on the outside of the arc rod (14). The mating groove (17) is opened on the mating plate (21). The arc hole (18) is opened in the fixed block (19). The mating plate (21) is installed on the outside of the fixed sleeve (2).

2. The linear motor counterweight device according to claim 1, characterized in that: The counterweight box (1) is provided with a counterweight block (22) that slides in it. The side wall of the counterweight box (1) is provided with a guide wheel (23) that rotates. A steel wire rope (24) is provided between the guide wheels (23). An observation slot (25) is provided on one side of the counterweight box (1).

3. The linear motor counterweight device according to claim 2, characterized in that: The movable rod (4) is provided with a clearance groove (26).

4. A linear motor counterweight device according to claim 3, characterized in that: A push plate (27) is provided above the counterweight (22). The push plate (27) is in contact with the counterweight (22). A connecting plate (28) is connected to the bottom end of the moving rod (4). A spring (29) is connected above the push plate (27). The top end of the spring (29) is connected to the lower end face of the connecting plate (28). The wire rope (24) moves through the clearance groove (26) and the push plate (27) and is connected to the top end of the counterweight (22).

5. A linear motor counterweight device according to any one of claims 1-4, characterized in that: The movable block (11) is connected to a movable block (30) on one side, and the movable sleeve (5) is provided with a movable groove (31) on one side, which is adapted to the movable block (30).

6. A linear motor counterweight device according to claim 5, characterized in that: The side wall of the fixed sleeve (2) is provided with a displacement groove (32), and a displacement block (33) is slidably provided in the displacement groove (32). The inner wall of the displacement sleeve (3) is fixedly connected to the outer wall of the movable sleeve (5) through the displacement block (33).

7. A linear motor counterweight device according to claim 1, characterized in that: A thrust bearing (34) is detachably provided on one side of the mating plate (21), and a push spring (35) is connected to one side of the shifting sleeve (3), with the other end of the push spring (35) connected to the thrust bearing (34).

8. A linear motor counterweight device according to claim 6, characterized in that: Multiple anti-slip strips (36) are fixedly provided on one side of the clamping plate (10).

Images