Standard rack assembly device

Abstract

This invention discloses a standard rack assembly device, comprising a chassis, a left wall plate, a right wall plate, connecting columns, a rack positioning device, a standard section tensioning device, a rack guide seat, a rack ejector seat, a rack clamping device, a standard section pressing device, and a standard section release device. The chassis has a left wall plate and a right wall plate mounted at its two ends, with several connecting columns between them. The left wall plate has a rack clamping device, a rack ejector seat, and a standard section pressing device, while the right wall plate has a rack guide seat, a rack positioning device, a standard section tensioning device, and a standard section release device. Each of the rack clamping device, standard section tensioning device, standard section pressing device, and standard section release device is connected to a pusher cylinder. This device offers high positioning accuracy, rapid and efficient installation, and a simple structure.

Description

Technical Field

[0001] This invention pertains to supporting equipment for construction hoists, and particularly relates to a standard section rack assembly device. Background Technology

[0002] Construction hoists are commonly used personnel and material transport machines in construction, primarily used to transport construction workers and materials to heights. They mainly consist of a guide rail frame, drive system, cage, electrical control system, and safety system. The lifting movement of the construction hoist is achieved by the drive system moving the cage along the guide rail frame. The drive system, powered by the electrical control system, drives the hoist. The cage provides the space for carrying personnel and materials, while the safety system ensures safe operation. The guide rail frame is composed of multiple standard sections, each equipped with a rack. The gears in the drive system mesh with the racks on the guide rail frame to provide the lifting force. The upper and lower load-bearing wheels and side rollers in the cage ensure its attachment to the guide rail frame. Therefore, the installation accuracy of the racks on the standard sections affects the smoothness of the relative movement between the cage and the guide rail frame, as well as the transmission efficiency between the cage and the drive system, thus significantly impacting passenger comfort and the lifespan of the equipment.

[0003] Currently, rack and pinion assembly is generally performed after the standard section has undergone hot-dip galvanizing. Existing rack and pinion assembly equipment lacks adequate measures to ensure assembly accuracy, leading to difficulties in positioning during assembly and requiring significant time for precision calibration. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a standard rack and pinion assembly device, which has high positioning accuracy, fast installation, high efficiency, and simple structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a standard rack assembly device, comprising a chassis, a left wall plate, a right wall plate, connecting columns, a rack positioning device, a standard section tensioning device, a rack guide seat, a rack ejector seat, a rack clamping device, a standard section pressing device, and a standard section release device. The chassis has a left wall plate and a right wall plate respectively installed at both ends, with several connecting columns between the left and right wall plates. The left wall plate has a rack clamping device, a rack ejector seat, and a standard section pressing device. The right wall plate has a rack guide seat, a rack positioning device, a standard section tensioning device, and a standard section release device. Each of the rack clamping device, standard section tensioning device, standard section pressing device, and standard section release device is connected to a pusher cylinder.

[0006] The rack positioning device includes a rack positioning sleeve and a rack positioning pin. One end of the rack positioning sleeve is bolted to the right wall plate, and the rack positioning pin is installed in the hole on the end face of the rack positioning sleeve, with an interference fit and anti-loosening screws.

[0007] The rack guide seat includes a guide pad and a guide block. The guide pad is bolted to the right wall plate and the guide pad and the guide block are connected by bolts.

[0008] The rack ejector seat includes a mounting base and a rack pad. The mounting base is installed on the left wall panel by bolts, and the rack pad is connected to the mounting base by bolts.

[0009] In the above technical solution, the rack clamping device includes a rack connecting seat, a rack clamping guide sleeve, a first guide screw, a rack top rod, a clamping positioning pin, and a first graphite copper sleeve. One end of the rack connecting seat is connected to the outer side of the left wall panel, and the other end is connected to the push cylinder. The rack clamping guide sleeve is connected to the inner side of the left wall panel and is coaxially arranged with the rack connecting seat. The rack top rod is fitted with the first graphite copper sleeve. The rack top rod and the first graphite copper sleeve are installed inside the rack clamping guide sleeve. One end of the rack top rod is connected to the push cylinder, and the other end is connected to the clamping positioning pin. A sliding groove is provided on the outer circle of the rack top rod. The first guide screw is installed on the rack clamping guide sleeve, and the sliding groove on the rack top rod cooperates with the first guide screw.

[0010] In the above technical solution, the standard section tensioning device includes a positioning sleeve, an inner support shaft head, a small connecting seat, a connecting nut, a conical pull stud, a second graphite copper sleeve, and an inner support expansion clamp. One end of the small connecting seat is connected to the push electric cylinder, and the other end is coaxially connected to the inner support shaft head. The inner support shaft head is connected to the outside of the right wall panel, and the positioning sleeve is connected to the inside of the right wall panel and is coaxially arranged with the inner support shaft head. One end of the connecting nut is connected to the drive end of the push electric cylinder, and the other end is connected to the conical pull stud. The connecting nut is fitted with a second graphite copper sleeve, which is located inside the inner support shaft head. The inner support expansion clamp is installed in the positioning sleeve and connected to the conical pull stud. The inner support expansion clamp is contracted or expanded by driving the conical pull stud through the push electric cylinder.

[0011] In the above technical solution, the standard section clamping device includes a clamping connecting seat, a fixed seat, a clamping top rod, a third graphite copper sleeve, a pressure head, a second guide screw, and an A-type disc spring. One end of the clamping connecting seat is connected to the push cylinder, and the other end is connected to the left wall plate. The clamping connecting seat is connected to the outside of the left wall plate, and the fixed seat is connected to the inside of the left wall plate and is coaxially arranged with the clamping connecting seat. A second guide screw is provided on the side wall of the fixed seat. The clamping top rod is fitted with a third graphite copper sleeve and installed in the fixed seat. The end of the clamping top rod is connected to the drive end of the push cylinder. A groove that mates with the second guide screw is opened on the outer diameter of the clamping top rod. The pressure head is bolted to the end of the clamping top rod. An A-type disc spring is provided between the pressure head and the clamping top rod.

[0012] In the above technical solution, the standard section release device includes an ejector head, a fixed positioning seat, an ejector rod, a third guide screw, a fourth graphite copper sleeve, and a fixed connecting seat. One end of the fixed connecting seat is connected to a push electric cylinder, and the other end is connected to the outside of the right wall panel. The fixed positioning seat is connected to the inside of the right wall panel and is coaxially arranged with the fixed connecting seat. The ejector rod is fitted with a fourth graphite copper sleeve, and the ejector rod and the fourth graphite copper sleeve are installed in the fixed positioning seat. One end of the ejector rod is connected to the drive end of the push electric cylinder, and the other end is connected to the ejector head. The fixed positioning seat is provided with a third guide screw, and the ejector rod is provided with a sliding groove that mates with the third guide screw. The ejector head has a cross-shaped structure, and the end face of the fixed positioning seat is provided with a cross-shaped groove that mates with the ejector head.

[0013] In the above technical solution, the chassis includes a base frame, a flange seat, a roller seat, a sensor mounting plate, and a middle beam. The middle beam is provided in the middle of the base frame, and the two ends of the base frame are respectively provided with mounting holes for mounting the left wall panel and the right wall panel. The base frame is provided with a flange seat between the mounting holes and the middle beam. A roller seat is installed on the flange seat, and a sensor mounting plate is provided on the roller seat. A sensor is mounted on the sensor mounting plate.

[0014] In the above technical solution, the connecting column includes a connecting pipe, a thick round nut, and a locking washer for the round nut. The two ends of the connecting pipe are equipped with screws, one end of which is connected to the left wall panel and the other end is connected to the right wall panel. The thick round nut and the locking washer for the round nut are used to lock and prevent loosening.

[0015] The beneficial effects of this invention are as follows: This invention employs advanced positioning technology and precise processing techniques to ensure accurate fit between all components. This precise fit not only reduces errors and deviations but also improves overall performance and stability. Furthermore, this invention offers significant advantages in improving work efficiency. By optimizing the structural design and simplifying the operating process, this invention enables workers to complete tasks more quickly and accurately. Simultaneously, it reduces unnecessary maintenance and repair work, lowering labor and time costs, further improving work efficiency. Finally, the structure of this invention is simple and clear, making it easy to manufacture and install. This design not only reduces production costs but also facilitates daily use and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure from another direction of the present invention.

[0018] Figure 3 This is a front view of the present invention.

[0019] Figure 4 for Figure 3Top view.

[0020] Figure 5 for Figure 3 A schematic diagram of the rack and pinion positioning device.

[0021] Figure 6 for Figure 3 A schematic diagram of the structure of the rack guide seat.

[0022] Figure 7 for Figure 3 A schematic diagram of the structure of the rack ejector seat.

[0023] Figure 8 for Figure 3 A schematic diagram of the middle rack clamping device.

[0024] Figure 9 for Figure 3 A schematic diagram of the mid-chassis structure.

[0025] Figure 10 for Figure 3 Structural diagram of the left middle wall panel.

[0026] Figure 11 for Figure 3 A schematic diagram of the right wall panel structure.

[0027] Figure 12 for Figure 3 A schematic diagram of the tensioning device for the standard section.

[0028] Figure 13 for Figure 3 A schematic diagram of the standard section clamping device.

[0029] Figure 14 for Figure 3 A schematic diagram of the structure of the standard section release device.

[0030] Figure 15 for Figure 3 A schematic diagram of the connecting column in the middle.

[0031] The components include: 1. Chassis; 2. Connecting column; 3. Left wall panel; 4. Standard section clamping device; 5. Rack clamping device; 6. Rack ejector seat; 7. Rack; 8. Standard section; 9. Standard section tensioning device; 10. Rack positioning device; 11. Rack guide seat; 12. Standard section release device; 13. Right wall panel; 14. Pushing cylinder; 15. Rack positioning pin; 16. Rack positioning sleeve; 17. Guide pad; 18. Guide block; 19. Mounting seat; 20. Rack pad; 21. Clamping positioning pin; 22. First guide screw; 23. Rack clamping guide sleeve; 24. First graphite copper sleeve; 25. Rack push rod; 26. Rack connecting seat; 27. Base frame; 28. 29. Flange seat; 30. Roller seat; 31. Sensor mounting plate; 32. Intermediate beam; 33. Inner support tensioning clamp; 34. Positioning sleeve; 35. Conical pull stud; 36. Inner support shaft head; 37. Second graphite copper sleeve; 38. Connecting nut; 39. Small connecting seat; 40. Pressure head; 41. Type A disc spring; 42. Second guide screw; 43. Pressing rod; 44. Fixed seat; 45. Third graphite copper sleeve; 46. Pressing connecting seat; 47. Ejector head; 48. Third guide screw; 49. Fixed positioning seat; 50. Fourth graphite copper sleeve; 51. Ejector rod; 52. Connecting seat two; 53. Thick round nut; 54. Round nut with locking washer; 55. Connecting pipe. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 4 The illustrated standard rack assembly device includes a chassis 1, a left wall plate 3, a right wall plate 13, connecting columns 2, a rack positioning device 10, a standard section tensioning device 9, a rack guide seat 11, a rack ejector seat 6, a rack clamping device 5, a standard section pressing device 4, and a standard section disengagement device 12. The chassis 1 has a left wall plate 3 and a right wall plate 13 mounted at its two ends, with several connecting columns 2 between them. The left wall plate 3 has the rack clamping device 5, the rack ejector seat 6, and the standard section pressing device 4. The right wall plate 13 has the rack guide seat 11, the rack positioning device 10, the standard section tensioning device 9, and the standard section disengagement device 12. Each of the rack clamping device 5, the standard section tensioning device 9, the standard section pressing device 4, and the standard section disengagement device 12 is connected to a push cylinder 14.

[0034] like Figure 5 As shown, the rack positioning device 10 includes a rack positioning sleeve 16 and a rack positioning pin 15. One end of the rack positioning sleeve 16 is installed on the right wall plate 13 by bolts. The rack positioning pin 15 is installed in the hole on the end face of the rack positioning sleeve 16. The rack positioning pin 15 is installed with the hole on the end face of the rack positioning sleeve 16 by interference fit and is loosened by screws.

[0035] The rack positioning sleeve 16 also has a threaded hole. The rack positioning pin 15 is fixed in the hole of the rack positioning sleeve 16 by tightening the screw. The rack positioning device 10 is positioned by inserting the rack positioning pin 15 into the hole on the side of the rack 7.

[0036] like Figure 6 As shown, the rack guide seat 11 includes a guide pad 17 and a guide block 18. The guide pad 17 is bolted to the right wall panel 13, and the guide pad 17 and the guide block 18 are bolted together. The rack guide seat 11 plays a guiding role when the rack 7 moves on the rack guide seat 11 through the stepped structure on the guide block 18.

[0037] like Figure 7 As shown, the rack ejector 6 includes a mounting base 19 and a rack pad 20. The mounting base 19 is bolted to the left wall panel 3, and the rack pad 20 is bolted to the mounting base 19. The rack ejector 6 uses the rack pad 20 to lift the rack 7 and cooperates with the rack guide seat 11 to keep the rack 7 horizontal.

[0038] like Figure 8 As shown, the rack clamping device 5 includes a rack connecting seat 26, a rack clamping guide sleeve 23, a first guide screw 22, a rack top rod 25, a clamping positioning pin 21, and a first graphite copper sleeve 24. One end of the rack connecting seat 26 is connected to the outside of the left wall panel 3, and the other end is connected to the push cylinder 14. The rack clamping guide sleeve 23 is connected to the inside of the left wall panel 3 and is coaxially arranged with the rack connecting seat 26. The rack top rod 25 is fitted with the first graphite copper sleeve 24. The rack top rod 25 and the first graphite copper sleeve 24 are installed inside the rack clamping guide sleeve 23. One end of the rack top rod 25 is connected to the push cylinder 14, and the other end is connected to the clamping positioning pin 21. A groove is provided on the outer circle of the rack top rod 25. The first guide screw 22 is installed on the rack clamping guide sleeve 23. The groove on the rack top rod 25 cooperates with the first guide screw 22.

[0039] The clamping positioning pin 21 of the rack clamping device 5 can position and tighten the rack 7. The rack clamping device 5 moves the rack 7 onto the rack positioning pin 15 of the rack positioning device 10 by pushing the electric cylinder 14, and clamps it.

[0040] like Figure 12As shown, the standard section tensioning device 9 includes a positioning sleeve 33, an inner support shaft head 35, a small connecting seat 38, a connecting nut 37, a conical pull stud 34, a second graphite copper sleeve 36, and an inner support expansion clamp 32. One end of the small connecting seat 38 is connected to the push cylinder 14, and the other end is coaxially connected to the inner support shaft head 35. The inner support shaft head 35 is connected to the outside of the right wall panel 13. The positioning sleeve 33 is connected to the inside of the right wall panel 13 and is coaxially arranged with the inner support shaft head 35. One end of the connecting nut 37 is connected to the drive end of the push cylinder, and the other end is connected to the conical pull stud 34. The second graphite copper sleeve 36 is sleeved on the connecting nut 37. The connecting nut 37 and the second graphite copper sleeve 36 are located inside the inner support shaft head 35. The inner support expansion clamp 32 is installed in the positioning sleeve 33 and connected to the conical pull stud 34. The inner support expansion clamp 32 is contracted or expanded by driving the conical pull stud 34 through the push cylinder.

[0041] The standard section tensioning device 9 is pushed by the electric cylinder 14, causing the inner support tensioning clamp 32 to enter the main chord of the standard section 8, and the inner support tensioning clamp 32 tightens the inner hole of the main chord of the standard section 8.

[0042] like Figure 13 As shown, the standard section clamping device 4 includes a clamping connecting seat 45, a fixed seat 43, a clamping top rod 42, a third graphite copper sleeve 44, a pressure head 39, a second guide screw 41, and an A-type disc spring 40. One end of the clamping connecting seat 45 is connected to the push cylinder, and the other end is connected to the left wall plate 3. The clamping connecting seat 45 is connected to the outside of the left wall plate 3. The fixed seat 43 is connected to the inside of the left wall plate 3 and is coaxially arranged with the clamping connecting seat 45. The second guide screw 41 is provided on the side wall of the fixed seat 43. The clamping top rod 42 is fitted with the third graphite copper sleeve 44 and installed in the fixed seat 43. The end of the clamping top rod 42 is connected to the drive end of the push cylinder 14. A sliding groove that mates with the second guide screw 41 is opened on the outer diameter of the clamping top rod 42. The pressure head 39 is bolted to the end of the clamping top rod 42. An A-type disc spring 40 is provided between the pressure head 39 and the clamping top rod 42.

[0043] The pressure head 39 has a through hole at its center, and the end face of the clamping rod 42 has a threaded hole. The pressure head is connected to the end face of the clamping rod by bolts. One end of the A-type disc spring 40 is in close contact with the clamping rod 42, and the other end is in close contact with the pressure head 39. The degree of clamping is controlled by the bolts installed on the clamping rod 42. The standard section clamping device 4 is pushed by the electric cylinder 14, so that the pressure head 39 contacts and clamps the standard section 8.

[0044] like Figure 14As shown, the standard section ejection device 12 includes an ejector head 46, a fixed positioning seat 48, an ejector rod 50, a third guide screw 47, a fourth graphite copper sleeve 49, and a fixed connecting seat 51. One end of the fixed connecting seat 51 is connected to a push cylinder, and the other end is connected to the outside of the right wall panel 13. The fixed positioning seat 48 is connected to the inside of the right wall panel 13 and is coaxially arranged with the fixed connecting seat 51. The ejector rod 50 is fitted with a fourth graphite copper sleeve 49. The ejector rod 50 and the fourth graphite copper sleeve 49 are installed inside the fixed positioning seat 48. One end of the ejector rod 50 is connected to the drive end of the push cylinder, and the other end is connected to the ejector head 46. The fixed positioning seat 48 is provided with a third guide screw 47, and the ejector rod 50 is provided with a sliding groove that mates with the third guide screw 47. The ejector head 46 has a cross-shaped structure, and the end face of the fixed positioning seat 48 is provided with a cross-shaped groove that mates with the ejector head 46.

[0045] The standard section release device 12 pushes the electric cylinder 14 to move the ejector head 46 to the end face of the main chord of the standard section 8, and continues to move forward, so that the standard section 8 is released under pressure.

[0046] like Figure 9 As shown, the chassis 1 includes a base frame 27, a flange seat 28, a roller seat 29, a sensor mounting plate 30, and a middle beam 31. The middle beam 31 is provided in the middle of the base frame 27. The two ends of the base frame 27 are respectively provided with mounting holes for mounting the left wall panel 3 and the right wall panel 13. The base frame 25 is provided with a flange seat 28 between the mounting holes and the middle beam 31. The roller seat 29 is mounted on the flange seat 28. The sensor mounting plate 30 is provided on the roller seat 29. The sensor is mounted on the sensor mounting plate 30.

[0047] The standard section 8 is placed on the roller seat 29 of the chassis 1. A sensor is installed on the sensor mounting plate 30 to detect whether the standard section 8 is present. The roller seat 29 has a roller in the middle, and guide devices are provided on both sides of the roller along the direction of the main chord of the standard section. The standard section 8 can slide left and right on the roller seat 29.

[0048] like Figure 15 As shown, the connecting column 2 includes a connecting pipe 54, a thick round nut 52, and a round nut locking washer 53. The connecting pipe 54 has screws at both ends, one end of which is connected to the left wall plate 3 and the other end is connected to the right wall plate 13. It is locked by the thick round nut 52 and the round nut locking washer 53.

[0049] The connecting column 2 allows the left wall panel 3 and the right wall panel 13 to form a whole, ensuring their parallelism and perpendicularity.

[0050] like Figure 10 The left wall panel 3 shown is welded from sheet metal and requires overall machining after welding to ensure precision. The left wall panel 3 has mounting holes for a rack ejector seat 6, a rack clamping device 5, a connecting column 2, and a standard section clamping device 4.

[0051] like Figure 11 The right wall panel 13 shown is welded from sheet metal and requires overall machining after welding to ensure accuracy. The right wall panel 13 has mounting holes for a rack positioning device 10, a rack guide seat 11, a standard section release device 12, a connecting column 2, and a standard section tensioning device 9.

[0052] Taking the rack 7 on the standard section 8 as an example: During operation, the standard section 8 is placed on the roller seat 29 of the chassis 1 by the robot arm of the previous process. After the sensor on the sensor mounting plate 30 detects the standard section 8, the push cylinder 14 of the standard section clamping device 4 starts to work, pressing the standard section 8 against the standard section tensioning device 9 and the standard section release device 12. The displacement of the push cylinder is monitored. When the design value is reached, the push cylinder 14 of the standard section tensioning device 9 starts to work, causing the inner support tensioning chuck 32 to tighten the inner hole of the main chord of the standard section 8. At the same time, the push cylinder 14 of the standard section clamping device 4 continues to work, clamping the standard section 8 against the positioning sleeve 33 and the standard section tensioning device 9. The standard section release device 12 is positioned on the positioning reference surface of the fixed positioning seat 48; the worker pushes the rack 7 onto the rack ejector seat 6 and the rack guide seat 11; the push cylinder 14 of the rack clamping device 5 starts working, cooperating with the rack positioning device 10 to clamp the rack 7, and after the rack is clamped, the worker tightens the rack bolt; then each push cylinder 14 pushes the standard section tensioning device 9, the standard section pressing device 4, and the rack clamping device 5 back to their original positions; the push cylinder 14 of the standard section release device 12 starts working, pushing the standard section 8 and the rack 7 to the gripping position of the robot arm; the push cylinder pushes the standard section release device 12 back to its original position; the robot arm grabs the standard section and enters the next circulation tube.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A standard pin rack assembly apparatus, characterized by: The system includes a chassis, left wall panel, right wall panel, connecting columns, rack positioning device, standard section tensioning device, rack guide seat, rack ejector seat, rack clamping device, standard section pressing device, and standard section release device. The chassis has a left wall panel and a right wall panel mounted at its two ends, with several connecting columns between them. The left wall panel has a rack clamping device, a rack ejector seat, and a standard section pressing device. The right wall panel has a rack guide seat, a rack positioning device, a standard section tensioning device, and a standard section release device. Each of the rack clamping device, standard section tensioning device, standard section pressing device, and standard section release device is connected to a pusher cylinder. The rack positioning device includes a rack positioning sleeve and a rack positioning pin. One end of the rack positioning sleeve is bolted to the right wall plate, and the rack positioning pin is installed in the hole on the end face of the rack positioning sleeve, with an interference fit and anti-loosening screws. The rack guide seat includes a guide pad and a guide block. The guide pad is bolted to the right wall plate and the guide pad and the guide block are connected by bolts. The rack ejector seat includes a mounting base and a rack pad. The mounting base is bolted to the left wall panel, and the rack pad is bolted to the mounting base. The rack clamping device includes a rack connecting seat, a rack clamping guide sleeve, a first guide screw, a rack top rod, a clamping positioning pin, and a first graphite copper sleeve. One end of the rack connecting seat is connected to the outside of the left wall panel, and the other end is connected to the push cylinder. The rack clamping guide sleeve is connected to the inside of the left wall panel and is coaxially arranged with the rack connecting seat. The rack top rod is fitted with the first graphite copper sleeve. The rack top rod and the first graphite copper sleeve are installed inside the rack clamping guide sleeve. One end of the rack top rod is connected to the push cylinder, and the other end is connected to the clamping positioning pin. A sliding groove is provided on the outer circle of the rack top rod. The first guide screw is installed on the rack clamping guide sleeve, and the sliding groove on the rack top rod cooperates with the first guide screw. The standard section tensioning device includes a positioning sleeve, an inner support shaft head, a small connecting seat, a connecting nut, a conical pull stud, a second graphite copper sleeve, and an inner support expansion clamp. One end of the small connecting seat is connected to a push electric cylinder, and the other end is coaxially connected to the inner support shaft head. The inner support shaft head is connected to the outside of the right wall panel, and the positioning sleeve is connected to the inside of the right wall panel and is coaxially arranged with the inner support shaft head. One end of the connecting nut is connected to the drive end of the push electric cylinder, and the other end is connected to the conical pull stud. The connecting nut is fitted with a second graphite copper sleeve, which is located inside the inner support shaft head. The inner support expansion clamp is installed in the positioning sleeve and connected to the conical pull stud. The inner support expansion clamp is contracted or expanded by driving the conical pull stud through the push electric cylinder.

2. The standard knuckle gear assembly of claim 1, wherein The standard section clamping device includes a clamping connecting seat, a fixed seat, a clamping top rod, a third graphite copper sleeve, a pressure head, a second guide screw, and an A-type disc spring. One end of the clamping connecting seat is connected to the push cylinder, and the other end is connected to the left wall panel. The clamping connecting seat is connected to the outside of the left wall panel, and the fixed seat is connected to the inside of the left wall panel and is coaxially arranged with the clamping connecting seat. A second guide screw is provided on the side wall of the fixed seat. The clamping top rod is fitted with a third graphite copper sleeve and installed in the fixed seat. The end of the clamping top rod is connected to the drive end of the push cylinder. A groove that mates with the second guide screw is opened on the outer diameter of the clamping top rod. The pressure head is bolted to the end of the clamping top rod. An A-type disc spring is provided between the pressure head and the clamping top rod.

3. The standard knuckle gear assembly of claim 1, wherein: The standard section ejection device includes an ejector head, a fixed positioning seat, an ejector rod, a third guide screw, a fourth graphite copper sleeve, and a fixed connecting seat. One end of the fixed connecting seat is connected to a push electric cylinder, and the other end is connected to the outside of the right wall panel. The fixed positioning seat is connected to the inside of the right wall panel and is coaxially arranged with the fixed connecting seat. The ejector rod is fitted with a fourth graphite copper sleeve, and the ejector rod and the fourth graphite copper sleeve are installed in the fixed positioning seat. One end of the ejector rod is connected to the drive end of the push electric cylinder, and the other end is connected to the ejector head. The fixed positioning seat is provided with a third guide screw, and the ejector rod is provided with a sliding groove that mates with the third guide screw. The ejector head has a cross-shaped structure, and the end face of the fixed positioning seat is provided with a cross-shaped groove that mates with the ejector head.

4. The standard knuckle gear assembly of claim 1, wherein: The chassis includes a base frame, a flange seat, a roller seat, a sensor mounting plate, and a middle beam. The middle beam is located in the middle of the base frame, and the two ends of the base frame are respectively provided with mounting holes for mounting the left and right wall panels. The base frame is provided with a flange seat between the mounting holes and the middle beam. A roller seat is mounted on the flange seat, and a sensor mounting plate is provided on the roller seat. A sensor is mounted on the sensor mounting plate.

5. The standard knuckle gear assembly of claim 1, wherein: The connecting column includes a connecting pipe, a thick round nut, and a locking washer for the round nut. The connecting pipe has screws at both ends, one end of which is connected to the left wall panel and the other end is connected to the right wall panel. It is locked by the thick round nut and the locking washer for the round nut to prevent loosening.

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