Rotation anti-shifting device for roller carrier of rubber coating machine

Abstract

The invention discloses a rubber coating machine roller carrier rotation anti-shifting device, and relates to the technical field of mechanical parts, the rubber coating machine roller carrier rotation anti-shifting device comprises a supporting seat, the upper end face of the supporting seat is provided with a sliding groove, a bidirectional screw is arranged in the sliding groove of the supporting seat, one end of the supporting seat is provided with a driving motor, and an output shaft of the driving motor is coaxially and fixedly connected with the bidirectional screw; two moving seats are arranged on the upper end face of the supporting seat, the two moving seats are oppositely arranged, the two moving seats are in threaded connection with the two ends of the two-way screw respectively, the moving seats are in sliding connection with the supporting seat, a pipe is arranged between the two moving seats, and the moving seats are connected with roller sets used for supporting the pipe. According to the device, the distance between the two roller sets is adjusted to adapt to pipes with different pipe diameters, so that good support is provided, and the adaptability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical components, in particular to a device for preventing a roller frame from rotating and escaping when a rubber lagging machine is used. Background Art

[0002] Rubber Lagging Machine Roller Frame is an auxiliary equipment used in specific industrial production processes. It is mainly used to support and fix various types of rollers or drums to facilitate rubber lagging (i.e. covering a layer of rubber material on the surface of metal or other materials). This equipment is usually used in occasions where maintenance or repair of drums, conveyor belt rollers and other parts is required, such as printing machinery, papermaking machinery, agricultural machinery and other fields.

[0003] When the vertical pipe is being coated on the coating machine, the head of the coating bed uses a claw to fix one end of the vertical pipe, and the tail uses a roller frame to carry and rotate. However, the pipe may still move when it rotates due to the roundness and axis accuracy of the pipe. The movement of the pipe will affect subsequent operations. The anti-movement device of the roller frame of the coating machine is a safety and stability device specially designed to prevent axial movement of the roller during the coating process. This device plays an important role in ensuring the quality of coating, improving production efficiency and maintaining equipment safety.

[0004] Related technology can refer to the patent application with publication number CN108927632A, which discloses an anti-slip roller frame, including a controller, a frame and a plurality of roller assemblies installed on the frame, the roller assembly including a roller seat and a roller installed on the roller seat, when the workpiece moves, the roller deflects around the Z axis, so that an anti-slip angle is formed between the axial direction of the roller and the axial direction of the workpiece to prevent the workpiece from moving; the application drives the roller seat to rotate through a driving device, thereby causing the roller to deflect by an angle, and the rotation direction of the roller forms an angle with the rotation direction of the workpiece, that is, the rotation of the roller forms a spiral line on the workpiece, so that when the workpiece moves, a force opposite to the moving direction is given to the workpiece to offset the force causing the workpiece to move, thereby achieving an anti-slip effect, and has the characteristics of simple structure, low manufacturing cost, good anti-slip effect, and will not affect the quality of circumferential seam welding.

[0005] With regard to the above-mentioned related technologies, the roller frame cannot be adapted according to the workpiece diameter when performing anti-channeling treatment, and the anti-channeling effect cannot always be in a stable state. Therefore, a rolling anti-channeling device for the roller frame of a rubber laminating machine is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0006] In order to improve the quality of product rubber coating and production efficiency, the present invention provides a device for preventing the rotation of a roller frame of a rubber coating machine.

[0007] The present invention provides a device for preventing the rotation of a roller frame of a rubber lagging machine, which adopts the following technical solution: A device for preventing the roller frame of a rubber lagging machine from rotating and slipping includes a support seat, an upper end surface of the support seat is provided with a sliding groove, a bidirectional screw is provided in the sliding groove of the support seat, a driving motor is provided at one end of the support seat, an output shaft of the driving motor is coaxially and fixedly connected with the bidirectional screw, two moving seats are provided on the upper end surface of the support seat, the two moving seats are arranged opposite to each other, the two moving seats are respectively threadedly connected to the two ends of the bidirectional screw, the moving seat is slidably connected to the support seat, a pipe is provided between the two moving seats, and a roller group for supporting the pipe is connected to the moving seat.

[0008] By adopting the above technical solution, when the pipe is placed between the roller groups, the roller groups fit closely to the surface of the pipe to provide stable support. When pipes of different diameters need to be adapted, the staff starts the drive motor, and the drive motor drives the bidirectional screw to rotate, thereby driving the two moving seats to move, and then driving the two roller groups to move, so as to adjust the distance between the two roller groups. This automatic adjustment mechanism improves the versatility and ease of operation of the equipment, and can effectively avoid the occurrence of pipe movement due to incompatibility, which is conducive to improving the safety of the equipment.

[0009] Optionally, the roller group includes a triangular plate, a right-angled end of the triangular plate is provided with a rotating shaft, the rotating shaft is fixedly connected to the triangular plate, the triangular plate is hinged to the movable seat through the rotating shaft, both beveled ends of the triangular plate are hinged with rollers, and the beveled edge of the triangular plate is arc-shaped for adapting to the shape of the pipe.

[0010] By adopting the above technical solution, when the roller group supports the tube, the beveled edge of the triangle plate is arc-shaped, which can better adapt to tubes of different diameters. When the size of the tube changes, the roller group can fit closely to the surface of the tube and provide uniform support, thereby ensuring stability and consistency during processing. In addition, by arranging rollers at the beveled end of the triangle plate, the contact points with the tube surface are increased, providing a stronger grip and further preventing the tube from sliding or moving during processing.

[0011] Optionally, moving wheels are provided at both ends of the moving seat, and the two moving wheels are coaxially fixedly connected to the two ends of the rotating shaft respectively. Movable grooves are provided on both sides of the sliding groove of the support seat, and the two movable grooves are arranged opposite to each other. Racks are provided in the movable grooves of the support seat, and the racks and moving wheels are arranged one by one, and the moving wheels are meshed with the corresponding racks.

[0012] By adopting the above technical solution, when the distance between the two moving seats needs to be adjusted according to the pipe diameter, the moving wheel will engage with the rack, thereby driving the moving wheel to rotate. The rotation of the moving wheel drives the rotating shaft to rotate, thereby driving the triangle plate to rotate, thereby changing the angle of the triangle plate to make it more suitable for the pipe diameter and provide better support.

[0013] Optionally, both ends of the support seat are fixedly connected with vertical plates, the two vertical plates are arranged opposite to each other, and lifting grooves are opened on opposite sides of the two vertical plates, and the two lifting grooves are respectively vertically provided with lifting screws and sliding rods, and a lifting plate is horizontally provided between the two vertical plates, one end of the lifting plate is threadedly connected to the lifting screw, and the other end is slidably connected to the sliding rod, the lower end surface of the lifting plate is fixedly connected with an arc plate for stabilizing the pipe, and the lifting screw passes through the upper end surface of the support seat and is connected to the bidirectional screw through a bevel gear pair.

[0014] By adopting the above technical solution, when the distance between the two movable seats needs to be adjusted according to the pipe diameter, the driving motor is started to drive the bidirectional screw to rotate, thereby driving the lifting screw to rotate. The rotation of the lifting screw drives the lifting plate to rise and fall, thereby adjusting the distance between the lifting plate and the pipe, thereby limiting the range of movement of the pipe in the vertical direction, further preventing the pipe from sliding or moving during the processing process, which is beneficial to improving the safety of the device.

[0015] Optionally, an auxiliary roller is provided on the lower end surface of the arc plate, and the auxiliary roller is extended along the width direction of the arc plate.

[0016] By adopting the above technical solution and setting auxiliary rollers, the smooth progress of the pipe rotation process can be ensured, and the occurrence of damage caused by excessive pressure on the curved plate can be avoided, which is beneficial to improving the safety of the device.

[0017] Optionally, a connecting block is provided on one side of the support seat, and a square groove is provided on the upper end surface of the connecting block, and two lifting cylinders are provided in the square groove. A long plate is provided at the square groove of the connecting block, and the piston rods of the two lifting cylinders are fixedly connected to the long plate. An adapting groove is provided on the upper end surface of the long plate, and the adapting groove is extended along the length direction of the long plate. An adapting screw is rotatably connected in the adapting groove, and a moving block is slidably connected to the upper end surface of the long plate, and the moving block is threadedly connected to the adapting screw. The upper end surface of the moving block is rotatably connected to an abutment wheel, and the abutment wheel is horizontally arranged, and the abutment wheel abuts against one end of the pipe.

[0018] By adopting the above technical solution, when the pipe is located between the two roller groups, the staff starts the lifting cylinder, and the lifting cylinder drives the long plate to rise and fall, so that the abutment wheel on the moving block and the end of the pipe are on the same horizontal line, and then drives the adapter screw to rotate, and the adapter screw drives the moving block to move, so that the abutment wheel and the end of the pipe are abutted, thereby achieving the limitation of the pipe, thereby preventing the pipe from moving. The setting of the abutment wheel can prevent the pipe from being damaged during the processing process, which is beneficial to improving the safety of the device.

[0019] Optionally, a rotating disk is provided at one end of the long plate away from the tube, and the rotating disk is coaxially fixedly connected to the adapting screw.

[0020] By adopting the above technical solution, when it is necessary to drive the adapting screw to rotate, the staff rotates the rotating disk, and the rotating disk drives the adapting screw to rotate, which is easy to operate and helps to improve work efficiency.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By setting a support seat, a bidirectional screw, a driving motor, a moving seat, a pipe and a roller group, when the pipe is placed between the roller groups, the roller group fits closely to the pipe surface and provides stable support. When pipes of different diameters need to be adapted, the staff starts the driving motor, and the driving motor drives the bidirectional screw to rotate, thereby driving the two moving seats to move, and then driving the two roller groups to move, so as to adjust the distance between the two roller groups. This automatic adjustment mechanism improves the versatility and ease of operation of the equipment, and can effectively avoid the occurrence of the phenomenon of pipe movement due to incompatibility, which is conducive to improving the safety of the equipment; 2. By setting the set plate, rotating shaft and roller, when the roller group supports the pipe, the bevel of the set plate is arc-shaped, which can better adapt to pipes of different diameters. When the size of the pipe changes, the roller group can closely fit the surface of the pipe, provide uniform support, and ensure stability and consistency during processing. In addition, by setting the roller at the bevel end of the set plate, the contact point with the pipe surface is increased, providing stronger gripping force, further preventing the pipe from sliding or moving during processing; 3. By setting the moving wheel and the rack, when the distance between the two moving seats needs to be adjusted according to the pipe diameter, the moving wheel will mesh with the rack, thereby driving the moving wheel to rotate. The rotation of the moving wheel drives the rotating shaft to rotate, thereby driving the triangle plate to rotate, thereby changing the angle of the triangle plate to make it more suitable for the pipe diameter and provide better support. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the overall structure of a rolling frame rotation anti-slip device of a rubber lagging machine.

[0023] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a rolling frame rotation anti-slip device of a rubber lagging machine.

[0024] Figure 3 The present invention is a schematic diagram of the cross-sectional structure of a rolling frame rotation anti-slip device of a rubber lagging machine from another angle.

[0025] Figure 4 yes Figure 3 Enlarged view of part A.

[0026] Figure 5 It is a schematic diagram of the overall structure of the stabilizing component.

[0027] Explanation of the accompanying drawings: 1. pipe; 2. adjustment component; 21. support seat; 22. bidirectional screw; 23. moving seat; 24. sliding groove; 25. driving motor; 26. vertical plate; 27. lifting screw; 28. sliding rod; 271. lifting plate; 272. arc plate; 273. auxiliary roller; 3. roller group; 31. triangular plate; 32. rotating shaft; 33. roller; 34. moving wheel; 35. rack; 4. stabilizing component; 41. connecting block; 42. lifting cylinder; 43. long plate; 44. adapter screw; 45. moving block; 46. abutment wheel; 47. rotating disk. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with all the accompanying drawings.

[0029] The embodiment of the invention discloses a device for preventing a roller frame from rotating and escaping when a rubber lagging machine is used.

[0030] Reference Figure 3 , Figure 4 and Figure 5 A device for preventing the rolling of a rubber lagging machine from slipping, comprising a tube 1, an adjusting component 2, a roller group 3 and a stabilizing component 4, wherein the roller group 3 is connected to the adjusting component 2, and the stabilizing component 4 is connected to one end of the tube 1. The adjusting component 2 adjusts the spacing of the roller group 3, the roller group 3 provides support for the tube 1, and the stabilizing component 4 limits one end of the tube 1.

[0031] Reference Figure 1 and Figure 3 The adjustment component 2 includes a support seat 21, a bidirectional screw 22 and two movable seats 23. A sliding groove 24 is opened on the upper end surface of the support seat 21. The bidirectional screw 22 is rotatably connected to the sliding groove 24 of the support seat 21. A driving motor 25 is provided at one end of the support seat 21. The output shaft of the driving motor 25 is coaxially fixedly connected with the bidirectional screw 22. The two movable seats 23 are both arranged on the upper end surface of the support seat 21. The two movable seats 23 are arranged opposite to each other. The two movable seats 23 are respectively threadedly connected to the two ends of the bidirectional screw 22. The movable seat 23 is slidably connected to the support seat 21. The pipe 1 is located between the two movable seats 23, and the roller group 3 is arranged on the movable seat 23.

[0032] Reference Figure 1 and Figure 3When the pipe 1 is placed between the roller groups 3, the roller groups 3 fit closely to the surface of the pipe 1 to provide stable support. When pipes 1 of different diameters need to be adapted, the staff starts the drive motor 25, and the drive motor 25 drives the bidirectional screw 22 to rotate, thereby driving the two moving seats 23 to move, and then driving the two roller groups 3 to move, thereby adjusting the distance between the two roller groups 3. This automatic adjustment mechanism improves the versatility and ease of operation of the equipment, and can effectively avoid the occurrence of movement of the pipe 1 due to incompatibility, which is beneficial to improving the safety of the equipment.

[0033] Reference Figure 2 and Figure 3 Both ends of the support seat 21 are fixedly connected with vertical plates 26, the two vertical plates 26 are arranged opposite to each other, and lifting grooves are opened on the opposite sides of the two vertical plates 26. The two lifting grooves are respectively vertically provided with lifting screws 27 and sliding rods 28. A lifting plate 271 is horizontally provided between the two vertical plates 26. One end of the lifting plate 271 is threadedly connected to the lifting screw 27, and the other end is slidably connected to the sliding rod 28. The lower end surface of the lifting plate 271 is fixedly connected with an arc plate 272 for stabilizing the pipe 1. The lifting screw 27 passes through the upper end surface of the support seat 21 and is connected to the bidirectional screw 22 through a bevel gear pair.

[0034] Reference Figure 1 , Figure 2 and Figure 3 When the distance between the two movable seats 23 needs to be adjusted according to the pipe diameter, the driving motor 25 starts to drive the bidirectional screw 22 to rotate, thereby driving the lifting screw 27 to rotate. The lifting screw 27 rotates to drive the lifting plate 271 to rise and fall, thereby adjusting the distance between the lifting plate 271 and the pipe 1, thereby limiting the range of movement of the pipe 1 in the vertical direction, further preventing the pipe 1 from sliding or moving during the processing, which is beneficial to improving the safety of the device.

[0035] Reference Figure 3 The lower end surface of the arc plate 272 is provided with an auxiliary roller 273, and the auxiliary roller 273 is extended along the width direction of the arc plate 272. By providing the auxiliary roller 273, the smooth rotation process of the pipe 1 can be ensured, and the phenomenon of damage caused by excessive pressure on the arc plate 272 can be avoided, which is conducive to improving the safety of the device.

[0036] Reference Figure 1 , Figure 3 and Figure 4The roller set 3 includes a triangular plate 31 and a rotating shaft 32. The rotating shaft 32 is inserted into the right-angle end of the triangular plate 31. The rotating shaft 32 is fixedly connected to the triangular plate 31. The triangular plate 31 is hinged to the movable seat 23 through the rotating shaft 32. The two bevel ends of the triangular plate 31 are hinged with rollers 33. The bevel of the triangular plate 31 is arc-shaped, which is used to adapt to the shape of the tube 1. When the roller set 3 supports the tube 1, the bevel of the triangular plate 31 is arc-shaped, which can better adapt to the tubes 1 of different diameters. When the size of the tube 1 changes, the roller set 3 can fit the surface of the tube 1 tightly, provide uniform support, and ensure stability and consistency during the processing. In addition, by setting the roller 33 at the bevel end of the triangular plate 31, the contact point with the surface of the tube 1 is increased, providing a stronger grip, and further preventing the tube 1 from sliding or moving during the processing.

[0037] Reference Figure 1 , Figure 3 and Figure 4 , moving wheels 34 are provided at both ends of the moving seat 23, and the two moving wheels 34 are coaxially fixedly connected to the two ends of the rotating shaft 32 respectively. Active grooves are opened on both sides of the sliding groove 24 of the support seat 21, and the two active grooves are arranged opposite to each other. Racks 35 are provided in the active grooves of the support seat 21, and the racks 35 are arranged one by one with the moving wheels 34, and the moving wheels 34 are meshed with the corresponding racks 35.

[0038] Reference Figure 1 , Figure 3 and Figure 4 When the distance between the two movable seats 23 needs to be adjusted according to the pipe diameter, the movable wheel 34 will mesh with the rack 35, thereby driving the movable wheel 34 to rotate. The rotation of the movable wheel 34 drives the rotating shaft 32 to rotate, thereby driving the triangular plate 31 to rotate, thereby changing the angle of the triangular plate 31 to make it more suitable for the pipe diameter of the pipe 1 and provide better support.

[0039] Reference Figure 1 and Figure 5 The stabilizing assembly 4 includes a connecting block 41, a square groove is provided on the upper end surface of the connecting block 41, two lifting cylinders 42 are arranged in the square groove, a long plate 43 is provided at the square groove of the connecting block 41, the piston rods of the two lifting cylinders 42 are fixedly connected to the long plate 43, an adapting groove is provided on the upper end surface of the long plate 43, the adapting groove is extended along the length direction of the long plate 43, an adapting screw 44 is rotatably connected in the adapting groove, a moving block 45 is slidably connected to the upper end surface of the long plate 43, the moving block 45 is threadedly connected to the adapting screw 44, the upper end surface of the moving block 45 is rotatably connected to an abutment wheel 46, the abutment wheel 46 is horizontally arranged, the abutment wheel 46 abuts against one end of the pipe 1, a rotating disk 47 is provided at the end of the long plate 43 away from the pipe 1, and the rotating disk 47 is coaxially fixedly connected to the adapting screw 44.

[0040] Reference Figure 1 and Figure 5 When the pipe 1 is located between the two roller groups 3, the staff starts the lifting cylinder 42, and the lifting cylinder 42 drives the long plate 43 to rise and fall, so that the abutment wheel 46 on the moving block 45 is on the same horizontal line as the end of the pipe 1, and then the rotating disk 47 is rotated to drive the adapting screw 44 to rotate, and the adapting screw 44 drives the moving block 45 to move, so that the abutment wheel 46 abuts against the end of the pipe 1, thereby limiting the position of the pipe 1, thereby preventing the pipe 1 from moving. The setting of the abutment wheel 46 can prevent the pipe 1 from being damaged during the processing process, which is beneficial to improving the safety of the device.

[0041] The implementation principle of the anti-slip device of the roller frame rotation of a rubber laminating machine according to an embodiment of the present invention is as follows: when the pipe diameter needs to be adapted, the pipe 1 is located between the two roller groups 3, and the staff starts the driving motor 25. The driving motor 25 drives the bidirectional screw 22 to rotate, thereby driving the two moving seats 23 to move, and then driving the two roller groups 3 to move, thereby adjusting the distance between the two roller groups 3, and at the same time driving the lifting plate 271 to fall, thereby limiting the movement of the pipe 1 from the vertical direction, and when the moving seat 23 moves, the moving wheel 34 will engage with the rack 35, thereby driving the moving wheel 34 to rotate, and the rotation of the moving wheel 34 drives the rotating shaft 32 to rotate, thereby driving the triangular plate 31 to rotate, thereby changing the angle of the triangular plate 31, so that it is more adapted to the pipe diameter of the pipe 1, providing better support, which is beneficial to preventing the pipe 1 from slipping and improving the safety of the device.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing the rotation of a roller frame of a rubber lagging machine, comprising a support seat (21), characterized in that: The upper end surface of the support seat (21) is provided with a sliding groove (24), a bidirectional screw (22) is arranged in the sliding groove (24) of the support seat (21), a driving motor (25) is arranged at one end of the support seat (21), an output shaft of the driving motor (25) is coaxially fixedly connected to the bidirectional screw (22), the upper end surface of the support seat (21) is provided with two moving seats (23), the two moving seats (23) are arranged opposite to each other, the two moving seats (23) are respectively threadedly connected to the two ends of the bidirectional screw (22), the moving seats (23) are slidably connected to the support seat (21), a pipe (1) is arranged between the two moving seats (23), and a roller group (3) for supporting the pipe (1) is connected to the moving seat (23).

2. The device for preventing the roll frame of a rubber lagging machine from rotating according to claim 1 is characterized in that: The roller assembly (3) comprises a triangular plate (31), a rotating shaft (32) passing through the right-angle end of the triangular plate (31), the rotating shaft (32) being fixedly connected to the triangular plate (31), the triangular plate (31) being hinged to the movable seat (23) via the rotating shaft (32), the two oblique ends of the triangular plate (31) being hinged to rollers (33), the oblique side of the triangular plate (31) being arc-shaped and adapted to the shape of the pipe (1).

3. The device for preventing the roll frame of a rubber lagging machine from rotating according to claim 2 is characterized in that: Both ends of the movable seat (23) are provided with movable wheels (34), and the two movable wheels (34) are coaxially fixedly connected to the two ends of the rotating shaft (32), respectively. Both sides of the sliding groove (24) of the support seat (21) are provided with movable grooves, and the two movable grooves are arranged opposite to each other. Racks (35) are arranged in the movable grooves of the support seat (21), and the racks (35) and the movable wheels (34) are arranged one by one, and the movable wheels (34) are meshed with the corresponding racks (35).

4. The device for preventing the roll frame of a rubber lagging machine from rotating according to claim 3 is characterized in that: Both ends of the support seat (21) are fixedly connected with vertical plates (26), the two vertical plates (26) are arranged opposite to each other, and the opposite sides of the two vertical plates (26) are provided with lifting grooves, and the two lifting grooves are respectively vertically provided with lifting screws (27) and sliding rods (28). A lifting plate (271) is horizontally provided between the two vertical plates (26), one end of the lifting plate (271) is threadedly connected to the lifting screw (27), and the other end is slidably connected to the sliding rod (28), and the lower end surface of the lifting plate (271) is fixedly connected with an arc plate (272) for stabilizing the pipe (1), and the lifting screw (27) passes through the upper end surface of the support seat (21) and is connected to the bidirectional screw (22) through a bevel gear pair.

5. The device for preventing the rolling frame of a rubber lagging machine from rotating according to claim 4 is characterized in that: An auxiliary roller (273) is provided on the lower end surface of the arc-shaped plate (272), and the auxiliary roller (273) is extended along the width direction of the arc-shaped plate (272).

6. The device for preventing the roll frame of a rubber lagging machine from rotating according to claim 1 is characterized in that: A connecting block (41) is provided on one side of the support seat (21). A square groove is provided on the upper end surface of the connecting block (41). Two lifting cylinders (42) are provided in the square groove. A long plate (43) is provided at the square groove of the connecting block (41). The piston rods of the two lifting cylinders (42) are fixedly connected to the long plate (43). An adapting groove is provided on the upper end surface of the long plate (43). The adapting groove is extended along the length direction of the long plate (43). An adapting screw (44) is rotatably connected in the adapting groove. A moving block (45) is slidably connected to the upper end surface of the long plate (43). The moving block (45) is threadedly connected to the adapting screw (44). An abutting wheel (46) is rotatably connected to the upper end surface of the moving block (45). The abutting wheel (46) is horizontally arranged and abuts against one end of the pipe (1).

7. The device for preventing the roll frame of a rubber lagging machine from rotating according to claim 6 is characterized in that: A rotating disk (47) is provided at one end of the long plate (43) away from the tube (1), and the rotating disk (47) is coaxially fixedly connected to the adapting screw rod (44).

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