High-bearing-capacity rod and wire coupling and assembling method

Abstract

The high-bearing rod and wire coupler comprises a first spline shaft and a second spline shaft, a connecting assembly is arranged between the first spline shaft and the second spline shaft, and supporting mechanisms are arranged at the opposite ends of the first spline shaft and the second spline shaft; the other end of the first spline shaft is connected with a tooth end assembly, the other end of the second spline shaft is connected with a roller end assembly, and a clutch is installed on the second spline shaft. The supporting mechanism comprises two supporting assemblies, a lifting assembly and a buffering assembly, the two supporting assemblies are connected to the opposite ends of the first spline shaft and the second spline shaft, and the buffering assembly is connected to the lower end of the lifting assembly; the coupling can be lengthened, the coupling is made to adapt to the installation distances of different devices, the installation adaptability of the coupling is improved, the supporting mechanism can support the first spline shaft and the second spline shaft, transmission is stable during high-speed operation, and the problems of shaking and vibration are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of couplings for rod and wire rolling mills, and in particular to a high-load-bearing rod and wire coupling and an assembly method thereof. Background Art

[0002] A bar and wire coupling is a device that connects two shafts, or a shaft and a rotating member, in a rolling mill. They rotate together during motion and power transmission and remain in place under normal circumstances. With the development of the manufacturing industry, the requirements for efficient and stable transmission of bar and wire are increasing. Existing traditional couplings have the following drawbacks: 1. The motor is decelerated by a reducer, whose interface is connected to the coupling's teeth, which takes up space and increases production costs. 2. The spline shaft is supported at both ends by roller and tooth assemblies, leaving the center free. When the spline shaft is extended, the distance between the roller and tooth ends increases, increasing deflection due to gravity. This leads to unstable transmission and causes jitter and vibration at high speeds. Modifying existing systems requires relocating the motor and equipment, which would require a lengthy construction period. Simply removing the reducer would also increase the distance between the roller and tooth ends, increasing deflection due to gravity. This would result in unstable transmission and cause jitter and vibration at high speeds, impacting transmission stability.

[0003] CN215467063U discloses a novel rod and wire coupling, comprising a roller end assembly, a spline shaft, a tooth end assembly, and a lubrication assembly. This rod and wire coupling allows for convenient replacement of internal and external tooth components when the roller end gear pair wears. Furthermore, the phase of the transmission equipment can be adjusted online according to actual needs. However, this novel rod and wire coupling still has some drawbacks, such as the inability to extend the coupling and the need to limit the distance between the equipment to be installed, which may prevent the equipment from being optimally arranged. Therefore, it is necessary to provide a high-load-bearing rod and wire coupling and a method for its installation without moving the motor or equipment. Summary of the Invention

[0004] The object of the present invention is to provide a high-load-bearing rod and wire coupling and an assembly method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-load-bearing rod and wire coupling, comprising:

[0007] A first spline shaft and a second spline shaft, wherein a connecting assembly is provided between the first spline shaft and the second spline shaft, a supporting mechanism is provided on opposite ends of the first spline shaft and the second spline shaft, the other end of the first spline shaft is connected to a tooth end assembly, the other end of the second spline shaft is connected to a roller end assembly, and a clutch is installed on the second spline shaft;

[0008] The connecting assembly includes a first connecting plate, a second connecting plate and an extension piece, wherein the first connecting plate and the second connecting plate are fixedly welded to opposite ends of the first spline shaft and the second spline shaft respectively, and the extension piece is fixedly installed between the first connecting plate and the second connecting plate by a plurality of first connecting bolts;

[0009] The support mechanism includes two support assemblies, a lifting assembly and a buffer assembly. The two support assemblies are connected to the opposite ends of the first spline shaft and the second spline shaft. The lifting assembly includes a first support frame, a movable plate, a servo electric cylinder and a first movable frame. The support assembly is installed on the movable plate. The first movable frame is fixedly welded to the lower end of the movable plate and is movably connected in the first support frame. The servo electric cylinder is fixedly installed in the first support frame. The output end of the servo electric cylinder is connected to the movable plate. The buffer assembly is connected to the lower end of the lifting assembly.

[0010] Preferably, the support mechanism also includes a thrust spherical roller bearing, two left and right pressure covers, and two left and right spacers are located in the middle of the roller end assembly and the tooth end assembly, with the spline shaft passing through the middle. The thrust spherical roller bearing radially positions its inner ring through the spline shaft, and radially and axially positions its outer ring through the left and right pressure covers, thereby ensuring the reliability of its position.

[0011] Preferably, the intermediate support assembly also includes two left and right sealing rings, which are arranged in the holes on the outer end face of the pressure cover and press the outer circle of the spacer, with the lip of the sealing ring facing outward; the lip of the sealing ring faces outward, and its outer ring presses the pressure cover, which can prevent external water vapor, dust, etc. from entering the bearing assembly, thereby extending the service life of the bearing.

[0012] Preferably, the tooth end assembly includes a tooth end outer gear sleeve, a tooth end inner gear ring, an intermediate pipe, a motor end sleeve and a flat key. The tooth end outer gear sleeve and the tooth end inner gear ring are meshed through a gear pair. The inner hole of the tooth end outer gear sleeve is provided with an internal spline. The tooth end outer gear sleeve and the second spline shaft are connected through an involute spline pair. One end of the intermediate pipe and the motor end sleeve are connected through the flat key.

[0013] Preferably, both ends of the intermediate connecting pipe are provided with a first flange, wherein the first flange at one end is connected to the second flange at one end of the inner gear ring at the tooth end by a first fixing bolt, and the first flange at the other end is connected to the third flange at one end of the motor end sleeve by a second fixing bolt.

[0014] Preferably, the roller end mechanism includes a roller end outer gear sleeve, a roller end inner gear ring and a bearing assembly, the roller end outer gear sleeve and the roller end inner gear ring are meshed through a gear pair, the roller end inner gear ring is connected to the first spline shaft, and the bearing assembly is connected to the outer side of the roller end inner gear ring.

[0015] Preferably, the bearing assembly includes a retaining frame, a first bearing, two end covers and a locking nut. The retaining frame is sleeved on the outer side of the inner gear ring of the roller end, the bearing is installed in the retaining frame, the inner ring of the first bearing cooperates with the outer circle of the inner gear ring of the roller end, the two end covers are located at both ends of the retaining frame, the inner holes of the two end covers cooperate with the outer side of the inner gear ring of the roller end, the inner end surfaces of the two end covers are in contact with the retaining frame and the first bearing, the locking nut is screwed on the inner gear ring of the roller end to press the end cover at one end, and the end cover at the other end is pressed on the inner gear ring of the roller end.

[0016] Preferably, the roller end assembly further comprises two sealing rings, which are respectively arranged in the holes of the two end covers, with the sealing ring lip at one end facing the step surface of the inner gear ring of the roller end, and the sealing ring lip at the other end facing the first bearing.

[0017] Preferably, the two support assemblies each include a fixing ring and a support ring, the fixing rings are fixedly welded on the first spline shaft and the second spline shaft respectively, the support ring is rotatably connected to the other end of the fixing ring through a second bearing, a support member is fixedly welded at the lower end of the support ring, and both ends of the support member are mounted on the movable plate through second connecting bolts.

[0018] Preferably, the buffer assembly includes a plurality of buffer springs, a second support frame and a second movable frame, the second movable frame is fixedly welded to the lower end of the first movable frame, and the second movable frame is movably connected in the second support frame, dampers are sleeved in the plurality of buffer springs, and the ends of the plurality of buffer springs and dampers are respectively connected to the first support frame and the second support frame.

[0019] Preferably, limiting blocks are fixedly welded on both sides of the second movable frame, limiting grooves for sliding connection of the limiting blocks are opened on both sides of the second support frame, and several mounting blocks are fixedly welded on the lower end of the second movable frame, and several of the mounting blocks are opened with mounting threaded holes.

[0020] A high-load-bearing rod and wire coupling and an assembly method thereof, comprising the following steps:

[0021] S1. Install the supporting components of the first spline shaft: Install the support ring on the end of the first spline shaft close to the motor, weld the fixing ring on the support ring to the first connecting plate on the first spline shaft, and install the roller end inner gear ring on the other end of the first spline shaft;

[0022] S2. Install the second spline shaft's supporting components: Install the support ring on the end of the second spline shaft away from the motor, install the clutch in the middle of the second spline shaft, and install the tooth-end inner gear ring on the end of the second spline shaft close to the motor;

[0023] S3. Connect the support roller end assembly to the roller end external gear sleeve: Connect the roller end external gear sleeve through the step surface of the roller end inner gear ring on the first spline shaft and the lock nut;

[0024] S4. Connect the gear end assembly to the motor output shaft: The motor end shaft sleeve and the gear end inner gear ring are connected through an intermediate pipe, and the intermediate pipe is connected to the motor end shaft sleeve through a flat key;

[0025] S5. Connecting the lifting assembly and the supporting assembly: Connecting the movable plate and the supporting member using a second connecting bolt;

[0026] S6. Centering and leveling by dial indicator: Install the magnetic base on the first spline shaft, fix the dial indicator dial on the outer circle of the second spline shaft connecting plate to read the reading, and the dial indicator measuring rod is halfway between fully extended and pushed in. Rotate the bezel to zero the scale, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, and adjust the horizontal position of the second spline shaft according to the dial indicator reading to complete the first horizontal alignment. Install the magnetic base on the second spline shaft, fix the dial indicator dial on the outer circle of the second spline shaft connecting plate to read the reading, and the dial indicator measuring rod is halfway between fully extended and pushed in. Rotate the bezel to zero the scale, start the motor, control the motor speed between 50-100 rpm, and adjust the horizontal position of the second spline shaft according to the dial indicator reading to complete the second horizontal alignment.

[0027] S7. Move and adjust the lifting assembly: Move the lifting assembly to below the connection between the first spline shaft and the second spline shaft to ensure that the lifting assembly is level. Install and set the dial indicator according to step S6, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, and control the servo electric cylinder to adjust the lifting assembly according to the dial indicator reading so that the movable plate just contacts the lower surface of the support. Control the servo electric cylinder to adjust the lifting to drive the movable plate to move. The movable plate drives the upper support assembly to move. The movement of the support assembly drives the first spline shaft and the second spline shaft to move vertically. Use a horizontal measuring device such as a laser level to measure the horizontality of the spline shaft to keep the two shafts level to complete the first vertical alignment. Swap the position of the dial indicator and the fixed seat, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, and control the servo electric cylinder to adjust the lifting assembly according to the reading to move the first spline shaft and the second spline shaft vertically to complete the second vertical alignment.

[0028] S8, connecting the first spline shaft and the second spline shaft: connecting the first connecting plate and the second connecting plate through a first connecting bolt;

[0029] S9. Test the vibration amplitude of the coupling during trial operation: Install the dial indicator base on the end cover, fix the dial indicator dial to the outer circle of the first spline shaft for reading, and place the dial indicator measuring rod between fully extended and pushed in. Rotate the bezel to return the scale to zero, start the motor, control the motor speed to between 40% and 60% of the rated speed, and observe whether the dial indicator reading reaches the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the dial indicator measuring position and measure again until it reaches the predetermined range three times in a row, and proceed to the next installation step. If it does not reach the predetermined range, control the servo electric cylinder to adjust the micro-support assembly in the vertical direction according to the dial indicator reading, and fine-tune the position of the lifting assembly in the horizontal direction. After adjustment, rotate the bezel to return the scale to zero, start the motor, control the motor speed to between 40% and 60% of the rated speed, and observe whether the dial indicator reading reaches the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the dial indicator measuring position and measure again until it reaches the predetermined range three times in a row, and proceed to the next installation step. If it does not reach the predetermined range, continue to adjust and measure according to the above method.

[0030] S10. Fix the lifting assembly: Use connecting bolts to pass through the mounting threaded holes to fix the lifting assembly in the current position.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The connection component can extend the coupling by setting the extension piece, so that the coupling can adapt to the installation distance of different equipment, thereby improving the installation adaptability of the coupling. The support mechanism can adjust the connection distance of the coupling by setting the support component, and the support height of the coupling can be adjusted by setting the lifting component, and the coupling can be supported and buffered by setting the buffer component. The support mechanism can support the first spline shaft and the second spline shaft, so that the coupling is not affected by the downward force of its own weight even when it is in the longest extended state. Therefore, the transmission is stable during high-speed operation, reducing jitter and vibration problems.

[0033] 2. The tooth end assembly transmits power through a direct connection between the motor and the intermediate pipe, eliminating the need for a reduction gearbox, saving installation space and production costs. The coupling's increased speed enables high-speed operation and high load capacity. The inclusion of a bearing assembly in the roller end assembly improves the coupling's strength and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic cross-sectional view of the present invention;

[0035] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0036] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point B in the middle;

[0037] Figure 4 This is a schematic structural diagram of the connecting assembly and the supporting assembly of the present invention;

[0038] Figure 5 This is a schematic cross-sectional structural diagram of a first support frame of the present invention;

[0039] Figure 6 It is a schematic diagram of the exploded structure of the connection assembly of the present invention.

[0040] In the figure: 1. First spline shaft; 2. Second spline shaft; 3. First connecting plate; 4. Second connecting plate; 5. Extension piece; 6. First connecting bolt; 7. First support frame; 8. Moving plate; 9. Servo cylinder; 10. First moving frame; 11. Tooth end outer gear sleeve; 12. Tooth end inner gear ring; 13. Intermediate connecting pipe; 14. Motor end sleeve; 15. Flat key; 16. First flange; 17. Second flange; 18. First fixing bolt; 19. Third flange; 20. Second fixing bolt; 21. Roller end outer gear sleeve 22. Roller end inner gear ring; 23. Retaining frame; 24. First bearing; 25. End cover; 26. Lock nut; 27. Sealing ring; 28. Retaining ring; 29. ​​Clutch; 30. Support ring; 31. Second bearing; 32. Support member; 33. Second connecting bolt; 34. Buffer spring; 35. Second support frame; 36. Second moving frame; 37. Damper; 38. Limit block; 39. Limit groove; 40. Mounting block; 41. Mounting threaded hole; 42. Sealing ring; 43. Thrust spherical roller bearing; 44. Pressure cover. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1:

[0043] See also Figure 1-5 , the present invention provides a technical solution:

[0044] A high-load-bearing rod and wire coupling, comprising:

[0045] A first spline shaft 1 and a second spline shaft 2, a connecting assembly is provided between the first spline shaft 1 and the second spline shaft 2, a supporting mechanism is provided on opposite ends of the first spline shaft 1 and the second spline shaft 2, the other end of the first spline shaft 1 is connected to a tooth end assembly, the other end of the second spline shaft 2 is connected to a roller end assembly, and a clutch 29 is installed on the second spline shaft 2;

[0046] The connecting assembly includes a first connecting plate 3, a second connecting plate 4 and an extension piece 5. The first connecting plate 3 and the second connecting plate 4 are fixedly welded to opposite ends of the first spline shaft 1 and the second spline shaft 2, respectively. The extension piece 5 is fixedly installed between the first connecting plate 3 and the second connecting plate 4 by a plurality of first connecting bolts 6.

[0047] When extending the coupling, the number of extension pieces 5 is added according to the extension distance, and several first connecting bolts 6 are used to install the extension piece 5 between the first connecting plate 3 and the second connecting plate 4 to complete the extension of the coupling, so that the coupling can adapt to the installation distance of different equipment and improve the installation adaptability of the coupling.

[0048] The supporting mechanism includes two supporting assemblies, a lifting assembly and a buffer assembly. The two supporting assemblies are connected to the opposite ends of the first spline shaft 1 and the second spline shaft 2. The lifting assembly includes a first supporting frame 7, a movable plate 8, a servo electric cylinder 9 and a first movable frame 10. The supporting assembly is installed on the movable plate 8. The first movable frame 10 is fixedly welded to the lower end of the movable plate 8 and is movably connected to the first supporting frame 7. The servo electric cylinder 9 is fixedly installed in the first supporting frame 7. The output end of the servo electric cylinder 9 is connected to the movable plate 8. The buffer assembly is connected to the lower end of the lifting assembly.

[0049] When adjusting the support for the coupling, the servo electric cylinder 9 drives the movable plate 8 to move, thereby driving the support assembly to adjust the height to support the coupling. When the movable plate 8 moves, the first movable frame 10 moves in the first support frame 7.

[0050] Specifically, the two support assemblies each include a fixing ring 28 and a support ring 30. The fixing ring 28 is fixedly welded on the first spline shaft 1 and the second spline shaft 2, respectively. The support ring 30 is rotatably connected to the other end of the fixing ring 28 through a second bearing 31. A support member 33 is fixedly welded on the lower end of the support ring 30, and both ends of the support member 33 are installed on the movable plate 8 through second connecting bolts 33.

[0051] When the support assembly is connected to the lifting assembly, the second connecting bolt 33 fixes the support member 33 on the movable plate 8. When the first spline shaft 1 and the second spline shaft 2 rotate, the support ring 30 supports the fixed ring 28 through the setting of the second bearing 31, and supports the first spline shaft 1 and the second spline shaft 2 without affecting the rotation. Even in the longest extended state, the coupling is not affected by the downward force of its own weight. Therefore, the transmission is stable during high-speed operation, and the occurrence of jitter and vibration problems is reduced.

[0052] The buffer assembly includes several buffer springs 34, a second support frame 35 and a second movable frame 36. The second movable frame 36 is fixedly welded to the lower end of the first movable frame 10, and the second movable frame 36 is movably connected in the second support frame 35. Dampers 37 are sleeved in several buffer springs 34. The two ends of several buffer springs 34 and dampers 37 are respectively connected to the first support frame 7 and the second support frame 35. Limiting blocks 38 are fixedly welded on both sides of the second movable frame 36, and limiting grooves 39 are opened on both sides of the second support frame 35 for sliding connection of the limiting blocks 38.

[0053] During shock absorption and buffering, a number of buffer springs 34 and dampers 37 can perform shock absorption and buffering on the first support frame 7. During shock absorption and buffering, the second movable frame 36 moves in the second support frame 35, and the limit block 38 moves in the limit groove 39, which can limit the movement of both sides of the second movable frame 36.

[0054] On the basis of the above embodiment, a plurality of mounting blocks 40 are fixedly welded to the lower end of the second movable frame 36 , and mounting threaded holes 41 are formed on the plurality of mounting blocks 40 .

[0055] The provision of the mounting threaded holes 41 facilitates the installation and fixation of the mounting block 40 , thereby installing and fixing the second movable frame 36 .

[0056] The tooth end assembly includes a tooth end outer gear sleeve 11, a tooth end inner gear ring 12, an intermediate pipe 13, a motor end sleeve 14 and a flat key 15. The tooth end outer gear sleeve 11 and the tooth end inner gear ring 12 are meshed through a gear pair. The inner hole of the tooth end outer gear sleeve 11 is provided with an internal spline. The tooth end outer gear sleeve 11 and the second spline shaft 2 are connected through an involute spline pair. One end of the intermediate pipe 13 and the motor end sleeve 14 are connected through a flat key 15.

[0057] The connection between the motor end sleeve 14 and the tooth end inner gear ring 12 is achieved through the intermediate pipe 13, and the connection between the intermediate pipe 13 and the motor end sleeve 14 is achieved through the flat key 15; when the motor is working, it drives the intermediate pipe 13 to rotate through the flat key 15, thereby driving the tooth end inner gear ring 12, the tooth end outer gear sleeve 11, the first spline shaft 1 and the second spline shaft 2 to rotate, and then drives the roller end mechanism to rotate, thereby transmitting the power source to the roller.

[0058] Furthermore, a first flange 16 is provided at both ends of the intermediate connecting pipe 13, wherein the first flange 16 at one end is connected to the second flange 17 at one end of the tooth end inner ring 12 by a first fixing bolt 18, and the first flange 16 at the other end is connected to the third flange 19 at one end of the motor end shaft sleeve 14 by a second fixing bolt 20, so that the intermediate connecting pipe 13 can be installed and fixed.

[0059] The roller end mechanism includes a roller end outer gear sleeve 21, a roller end inner gear ring 22 and a bearing assembly. The roller end outer gear sleeve 21 and the roller end inner gear ring 22 are meshed through a gear pair. The roller end inner gear ring 22 is connected to the first spline shaft 1, and the bearing assembly is connected to the outer side of the roller end inner gear ring 22.

[0060] The bearing assembly is limited in radial direction by the roller end inner teeth and the retaining frame 23, and is limited in axial direction by the step surface of the roller end inner gear ring 22 and the locking nut 26, thereby ensuring the reliability of the position.

[0061] Specifically, the bearing assembly includes a retainer 23, a first bearing 24, two end covers 25 and a locking nut 26. The retainer 23 is sleeved on the outer side of the roller end inner gear ring 22, and the bearing is installed in the retainer 23. The inner ring of the first bearing 24 cooperates with the outer circle of the roller end inner gear ring 22. The two end covers 25 are located at both ends of the retainer 23. The inner holes of the two end covers 25 cooperate with the outer side of the roller end inner gear ring 22. The inner end surfaces of the two end covers 25 are in contact with the retainer 23 and the first bearing 24. The locking nut 26 is screwed on the roller end inner gear ring 22 to press the end cover 25 at one end, and the end cover 25 at the other end is pressed on the roller end inner gear ring 22.

[0062] Since the inner ring size of the first bearing 24 becomes larger, the specifications of the first bearing 24 become larger, and the load-bearing capacity of the first bearing 24 is stronger; the outer diameter of the roller end inner gear ring 22 is much larger than the outer diameters of the first spline shaft 1 and the second spline shaft 2, and the support force point of the first bearing 24 has little effect on the roller end inner gear ring 22; therefore, the setting of the bearing assembly improves the strength and stability of the coupling.

[0063] Example 2:

[0064] See also Figure 2 The difference between this embodiment 2 and embodiment 1 is that:

[0065] The roller end assembly also includes two sealing rings 27, which are respectively arranged in the holes of the two end covers 25. The lip of the sealing ring 27 at one end faces the step surface of the roller end inner gear ring 22, and the lip of the sealing ring 27 at the other end faces the first bearing 24.

[0066] The sealing ring 27 at one end can prevent external moisture, dust, etc. from entering the bearing assembly, thereby extending the service life of the first bearing 24; the sealing ring 27 at the other end can prevent the lubricating oil in the first bearing 24 from flowing out of the bearing assembly, thereby extending the service life of the first bearing 24.

[0067] Example 3:

[0068] The difference between this embodiment 3 and the embodiments 1 and 2 is that this embodiment further provides a high-load-bearing rod and wire coupling and an assembly method, including the following steps:

[0069] S1. Install the supporting components of the first spline shaft 1: Install the support ring 30 on the end of the first spline shaft 1 close to the motor, weld the fixing ring 28 on the support ring 30 to the first connecting plate 3 on the first spline shaft 1, and install the roller end inner gear ring 22 on the other end of the first spline shaft 1;

[0070] S2. Install the supporting components of the second spline shaft 2: install the support ring 30 on the end of the second spline shaft 2 away from the motor, install the clutch 29 in the middle of the second spline shaft 2, and install the tooth end inner gear 12 on the end of the second spline shaft 2 close to the motor;

[0071] S3. Connect the support roller end assembly to the roller end external gear sleeve: Connect the roller end external gear sleeve 21 through the step surface of the roller end internal gear ring 22 on the first spline shaft 1 and the locking nut 26;

[0072] S4. Connect the gear end assembly to the motor output shaft: The motor end sleeve 14 and the gear end inner ring 12 are connected via an intermediate pipe 13, and the intermediate pipe 13 is connected to the motor end sleeve 14 via a flat key 15;

[0073] S5. Connect the lifting assembly and the supporting assembly: Use the second connecting bolts 33 to connect the movable plate 8 and the supporting member 32;

[0074] S6. Centering and leveling by dial indicator: Install the magnetic base on the first spline shaft 1, fix the dial indicator dial to the outer circle of the connecting disk of the second spline shaft 2 for reading, and place the dial indicator rod between fully extended and pushed in. Rotate the bezel to return the scale to zero, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, and adjust the horizontal position of the second spline shaft 2 according to the dial indicator reading to complete the first horizontal alignment. Install the magnetic base on the second spline shaft 2, fix the dial indicator dial to the outer circle of the connecting disk of the first spline shaft 1 for reading, and place the dial indicator rod between fully extended and pushed in. Rotate the bezel to return the scale to zero, start the motor, control the motor speed between 50-100 rpm, and adjust the horizontal position of the second spline shaft 2 according to the dial indicator reading to complete the second horizontal alignment.

[0075] S7, move and adjust the lifting assembly: move the lifting assembly to below the connection between the first spline shaft 1 and the second spline shaft 2, ensure that the lifting assembly is level, install and set the dial indicator according to step S6, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, control the servo electric cylinder 9 to adjust the lifting assembly according to the dial indicator reading, so that the movable plate 8 just contacts the lower surface of the support 32, control the servo electric cylinder 9 to adjust the lifting to drive the movable plate 8 to move, and the movable plate 8 drives the upper end support assembly to move, and the support assembly moves to drive the first spline shaft 1 and the second spline shaft 2 to move vertically, use a laser level or other horizontal measuring device to measure the horizontality of the spline shaft to keep the two shafts level, complete the first vertical alignment, swap the position of the dial indicator and the fixed seat, start the motor, control the motor speed between 50-100 rpm, observe the reading on the dial indicator, control the servo electric cylinder 9 to adjust the lifting assembly according to the reading, vertically move the first spline shaft 1 and the second spline shaft 2, and complete the second vertical alignment;

[0076] S8, connecting the first spline shaft 1 and the second spline shaft 2: connecting the first connecting plate 3 and the second connecting plate 4 through the first connecting bolt 6;

[0077] S9. Test the vibration amplitude of the coupling during trial operation: Install the dial indicator base on the end cover 25, fix the dial indicator dial to the outer circle of the first spline shaft 1 for reading, and place the dial indicator measuring rod between fully extended and pushed in. Rotate the bezel to return the scale to zero, start the motor, and control the motor speed between 40% and 60% of the rated speed. Observe whether the dial indicator reading is within the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the dial indicator measuring position and measure again until it reaches the predetermined range three times in a row. Then proceed to the next installation step. If it does not reach the predetermined range, According to the dial indicator reading, control the servo electric cylinder 9 to adjust the micro-support assembly in the vertical direction, move the lifting assembly in the horizontal direction, and fine-tune the position of the lifting assembly. After adjustment, rotate the bezel to zero the scale, start the motor, and control the motor speed between 40% and 60% of the rated speed. Observe whether the dial indicator reading is within the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the dial indicator measurement position and measure again. If it reaches the predetermined range three times in a row, proceed to the next installation step. If it does not reach the predetermined range, continue to adjust the measurement according to the above method.

[0078] S10. Fix the lifting assembly: Use connecting bolts to pass through the mounting threaded holes to fix the lifting assembly in the current position.

[0079] Working principle:

[0080] The motor end sleeve 14 and the gear end inner ring 12 are connected by the intermediate pipe 13, and the intermediate pipe 13 and the motor end sleeve 14 are connected by the flat key 15. The axial position of the roller end inner ring 22 is limited by the stepped surface and the locking nut 26.

[0081] When extending the first spline shaft 1 and the second spline shaft 2, the number of extension pieces 5 is added according to the extension distance, and the extension pieces 5 are installed between the first connection plate 3 and the second connection plate 4 by a plurality of first connecting bolts 6;

[0082] When supporting the first spline shaft 1 and the second spline shaft 2, the second movable frame 36 can be fixed by connecting the mounting threaded holes 41 with bolts. Then, the servo electric cylinder 9 drives the movable plate 8 to move, thereby driving the support assembly to adjust the height to support the coupling. After adjusting to the appropriate position, the support member 33 is fixed to the movable plate 8 with the second bolt, and the support ring 30 and the movable plate 8 are connected.

[0083] During rotation, the motor drives the intermediate pipe 13 to rotate through the flat key 15, thereby driving the tooth end inner gear ring 12, the tooth end outer gear shaft sleeve 11, the first spline shaft 1 and the second spline shaft 2 to rotate. When the first spline shaft 1 and the second spline shaft 2 are engaged, the support ring 30 supports the fixing ring 28 through the setting of the second bearing 31, and supports the rotation of the first spline shaft 1 and the second spline shaft 2 without affecting the rotation.

Claims

1. A high load-bearing rod and wire coupling, characterized in that: include: A first spline shaft (1) and a second spline shaft (2), wherein a connecting assembly is provided between the first spline shaft (1) and the second spline shaft (2), a supporting mechanism is provided on opposite ends of the first spline shaft (1) and the second spline shaft (2), the other end of the first spline shaft (1) is connected to a tooth end assembly, the other end of the second spline shaft (2) is connected to a roller end assembly, and a clutch (29) is installed on the second spline shaft (2); The connecting assembly comprises a first connecting plate (3), a second connecting plate (4) and an extension piece (5); the first connecting plate (3) and the second connecting plate (4) are respectively fixedly welded to opposite ends of the first spline shaft (1) and the second spline shaft (2); and the extension piece (5) is fixedly installed between the first connecting plate (3) and the second connecting plate (4) by means of a plurality of first connecting bolts (6); The support mechanism comprises two support components, a lifting component and a buffer component. The two support components are connected to opposite ends of a first spline shaft (1) and a second spline shaft (2). The lifting component comprises a first support frame (7), a moving plate (8), a servo electric cylinder (9) and a first moving frame (10). The support components are mounted on the moving plate (8). The first moving frame (10) is fixedly welded to the lower end of the moving plate (8) and is movably connected in the first support frame (7). The servo electric cylinder (9) is fixedly mounted in the first support frame (7). The output end of the servo electric cylinder (9) is connected to the moving plate (8). The buffer component is connected to the lower end of the lifting component.

2. A high load-bearing rod and wire coupling according to claim 1, characterized in that: The tooth end assembly comprises a tooth end outer tooth shaft sleeve (11), a tooth end inner tooth ring (12), an intermediate pipe (13), a motor end shaft sleeve (14) and a flat key (15); the tooth end outer tooth shaft sleeve (11) and the tooth end inner tooth ring (12) are meshed through a gear pair; the inner hole of the tooth end outer tooth shaft sleeve (11) is provided with an internal spline; the tooth end outer tooth shaft sleeve (11) and the second spline shaft (2) are connected through an involute spline pair; one end of the intermediate pipe (13) and the motor end shaft sleeve (14) are connected through the flat key (15).

3. A high load-bearing rod and wire coupling according to claim 2, characterized in that: Both ends of the intermediate pipe (13) are provided with a first flange (16), wherein the first flange (16) at one end is connected to a second flange (17) at one end of the tooth end inner gear ring (12) via a first fixing bolt (18), and the first flange (16) at the other end is connected to a third flange (19) at one end of the motor end shaft sleeve (14) via a second fixing bolt (20).

4. A high load-bearing rod and wire coupling according to claim 1, characterized in that: The roller end mechanism comprises a roller end outer gear sleeve (21), a roller end inner gear ring (22) and a bearing assembly; the roller end outer gear sleeve (21) and the roller end inner gear ring (22) are meshed via a gear pair; the roller end inner gear ring (22) is connected to the first spline shaft (1); and the bearing assembly is connected to the outer side of the roller end inner gear ring (22).

5. A high load-bearing rod and wire coupling according to claim 4, characterized in that: The bearing assembly comprises a retainer (23), a first bearing (24), two end covers (25) and a locking nut (26); the retainer (23) is sleeved on the outer side of the roller end inner gear ring (22); the bearing is installed in the retainer (23); the inner ring of the first bearing (24) matches the outer circle of the roller end inner gear ring (22); the two end covers (25) are located at two ends of the retainer (23); the inner holes of the two end covers (25) match the outer side of the roller end inner gear ring (22); the inner end surfaces of the two end covers (25) are in contact with the retainer (23) and the first bearing (24); the locking nut (26) is screwed on the roller end inner gear ring (22) to press the end cover (25) at one end, and the end cover (25) at the other end is pressed on the roller end inner gear ring (22).

6. A high load-bearing rod and wire coupling according to claim 5, characterized in that: The roller end assembly further comprises two sealing rings (27), the two sealing rings (27) being respectively arranged in the holes of the two end covers (25), the lip of the sealing ring (27) at one end facing the step surface of the roller end inner gear ring (22), and the lip of the sealing ring (27) at the other end facing the first bearing (24).

7. A high load-bearing rod and wire coupling according to claim 1, characterized in that: The two support assemblies each comprise a fixing ring (28) and a support ring (30); the fixing ring (28) is fixedly welded to the first spline shaft (1) and the second spline shaft (2), respectively; the support ring (30) is rotatably connected to the other end of the fixing ring (28) via a second bearing (31); a support member (33) is fixedly welded to the lower end of the support ring (30); and both ends of the support member (33) are mounted on the movable plate (8) via second connecting bolts (33).

8. A high load-bearing rod and wire coupling according to claim 1, characterized in that: The buffer assembly comprises a plurality of buffer springs (34), a second support frame (35) and a second movable frame (36); the second movable frame (36) is fixedly welded to the lower end of the first movable frame (10), and the second movable frame (36) is movably connected in the second support frame (35); a damper (37) is sleeved in the plurality of buffer springs (34); and two ends of the plurality of buffer springs (34) and the damper (37) are respectively connected to the first support frame (7) and the second support frame (35).

9. A high load-bearing rod and wire coupling according to claim 8, characterized in that: Limiting blocks (38) are fixedly welded on both sides of the second movable frame (36), limiting grooves (39) for sliding connection of the limiting blocks (38) are provided on both sides of the second support frame (35), and a plurality of mounting blocks (40) are fixedly welded on the lower end of the second movable frame (36), and mounting threaded holes (41) are provided on the plurality of mounting blocks (40).

10. An assembly method for a high-load-bearing rod and wire coupling according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Install the supporting components of the first spline shaft (1): install the support ring (30) on the end of the first spline shaft (1) close to the motor, weld the fixing ring (28) on the support ring (30) and the first connecting plate (3) on the first spline shaft (1), and install the roller end inner gear ring (22) on the other end of the first spline shaft (1); S2. Install the supporting components of the second spline shaft (2): install the support ring (30) at the end of the second spline shaft (2) away from the motor, install the clutch (29) in the middle of the second spline shaft (2), and install the tooth end inner gear ring (12) at the end of the second spline shaft (2) close to the motor; S3, connecting the support roller end assembly to the roller end external gear sleeve: connecting the roller end external gear sleeve (21) through the step surface of the roller end internal gear ring (22) on the first spline shaft (1) and the locking nut (26); S4, connecting the gear end assembly with the motor output shaft: the motor end sleeve 14 and the gear end inner gear ring 12 are connected through the intermediate pipe 13, and the intermediate pipe 13 is connected to the motor end sleeve 14 through the flat key 15; S5, connecting the lifting assembly and the supporting assembly: using the second connecting bolt (33) to connect the moving plate (8) and the supporting member (32); S6, centering and leveling by dialing: the magnetic base is mounted on the first spline shaft (1), the dial gauge is fixed on the outer circle of the connecting plate of the second spline shaft (2) to read the reading, the dial gauge measuring rod is between fully extended and pushed in, the bezel is rotated to return the scale to zero, the motor is started, the motor speed is controlled between 50 and 100 rpm, the reading on the dial gauge is observed, and the horizontal position of the second spline shaft (2) is adjusted according to the dial gauge reading to complete the first horizontal direction centering, the magnetic base is mounted on the second spline shaft (2), the dial gauge is fixed on the outer circle of the connecting plate of the first spline shaft (1) to read the reading, the dial gauge measuring rod is between fully extended and pushed in, the bezel is rotated to return the scale to zero, the motor is started, the motor speed is controlled between 50 and 100 rpm, and the horizontal position of the second spline shaft (2) is adjusted according to the dial gauge reading to complete the second horizontal direction centering; S7, moving and adjusting the lifting assembly: move the lifting assembly to below the connection between the first spline shaft (1) and the second spline shaft (2), ensure that the lifting assembly is level, install and set the dial indicator according to step S6, start the motor, control the motor speed to be between 50 and 100 rpm, observe the reading on the dial indicator, and control the servo electric cylinder (9) to adjust the lifting assembly according to the reading of the dial indicator, so that the moving plate (8) just contacts the lower surface of the support member (32), control the servo electric cylinder (9) to adjust the lifting to drive the moving plate (8) to move, and the moving plate (8) drives the upper support assembly to move, and the support assembly moves The first spline shaft (1) and the second spline shaft (2) are driven to move vertically, so that the first spline shaft (1) and the second spline shaft (2) move vertically, a horizontal measuring device such as a laser level is used to measure the horizontality of the spline shafts, so that the two shafts remain horizontal, and the first vertical alignment is completed, the positions of the dial indicator and the fixed seat are exchanged, the motor is started, and the motor speed is controlled to be between 50 and 100 revolutions per minute, and the reading on the dial indicator is observed. According to the reading, the servo electric cylinder (9) is controlled to adjust the lifting component, so that the first spline shaft (1) and the second spline shaft (2) move vertically synchronously, and the second vertical alignment is completed; S8, connecting the first spline shaft (1) and the second spline shaft (2): connecting the first connecting plate (3) and the second connecting plate (4) via a first connecting bolt (6); S9. Test the vibration amplitude of the coupling by trial operation: install the dial indicator base on the end cover (25), fix the dial indicator dial to the outer diameter of the first spline shaft (1) and read the reading. The dial indicator measuring rod is between fully extended and pushed in. Rotate the bezel to return the scale to zero. Start the motor and control the motor speed to between 40% and 60% of the rated speed. Observe whether the dial indicator reading is within the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the dial indicator measurement position and measure again until it reaches the predetermined range three times in a row. Then proceed to the next installation step. If it does not reach the predetermined range, According to the reading of the dial indicator, the servo electric cylinder (9) is controlled in the vertical direction to adjust the height of the micro-support component, and the lifting component is moved in the horizontal direction to fine-tune the position of the lifting component. After adjustment, the dial bezel is rotated to return the scale to zero, the motor is started, and the motor speed is controlled to be between 40% and 60% of the rated speed. Observe whether the dial indicator reading reaches the range of 0.05mm-0.15mm. If it reaches the predetermined range, change the measuring position of the dial indicator and measure again until it reaches the predetermined range three times in a row, and then proceed to the next installation step. If it does not reach the predetermined range, continue to adjust and measure according to the above method; S10. Fix the lifting assembly: Use the connecting bolts to pass through the mounting threaded holes to fix the lifting assembly at the current position.

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