A universal joint sleeve lining replacement device

Abstract

The present invention discloses a device for replacing a universal joint sleeve liner, comprising a tightening and fixing part and a disassembling and moving part, wherein the disassembling and moving part drives a liner to be movably arranged on the tightening and fixing part, and the tightening and fixing part is adjustably tightened and fixed in the sleeve of the universal joint; through the tightening and fixing part, the device can be fixed in the sleeve of the universal joint, and the disassembly and installation of the liner can be completed by manually adjusting the disassembling and moving part, which is labor-saving and convenient, and avoids the difficulty in loading and unloading caused by the liner being difficult to grasp, and the phenomenon of easy squeezing and hitting of hands.

Description

Technical Field

[0001] The invention belongs to the technical field of shaft coupling sleeves, and in particular relates to a liner replacement device for a universal shaft coupling sleeve. Background Art

[0002] The universal joint is the connecting shaft between the transmission device and the roller. Its main function is to transmit the motion and power of two transmission shaft systems that are not in the same straight line. A large part of the transmission in metallurgical equipment adopts universal joint transmission, especially the transmission shaft of the rolling mill almost all adopts universal joint. Such universal joints are generally designed with lining plates to cooperate with the flat head of the roller to transmit torque. After a period of use, the lining plates are severely worn and need to be replaced regularly.

[0003] At present, when replacing the liner of the universal joint, the universal joint needs to be removed, and then hoisted to the maintenance area, and the liner is replaced manually. When manually replacing, the staff needs to put their fingers into the liner bolt holes installed on the universal joint or hold the edge of the liner with their hands, and then apply force to pull the liner out from the inner wall of the universal joint sleeve. In this way, it is difficult to apply force with the fingers or because of the obstruction of the universal joint cylinder wall, the hand cannot hold the edge of the liner well, so it is difficult to grasp. In addition, the liner of the universal joint is generally heavy, especially the liner in the large universal joint. This phenomenon is even worse, resulting in difficulty in manual loading and unloading of the liner, and it is easy to squeeze or hit the hands, which is time-consuming and laborious. Summary of the invention

[0004] In view of the shortcomings and defects in the prior art, the object of the present invention is to provide a universal joint sleeve liner replacement device, which solves the problem of difficult disassembly and assembly and easy squeezing or hitting of hands caused by directly replacing the liner by hand.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a universal joint sleeve liner replacement device, comprising a tightening and fixing part and a disassembling and moving part, the disassembling and moving part drives a liner to be movably arranged on the tightening and fixing part, and the tightening and fixing part is adjustably tightened and fixed in the sleeve of the universal joint.

[0006] As a further improvement of the present invention, the tightening and fixing part includes a movable base plate, a pre-tightening adjustment column, a long connecting rod, and a short connecting rod. The movable base plate is horizontally placed at the bottom of the universal joint sleeve. There are four pre-tightening adjustment columns, which are connected one by one through long connecting rods and short connecting rods to form a rectangle. The pre-tightening adjustment column is placed on the upper part of the movable base plate.

[0007] As a further improvement of the present invention, the preload adjustment column includes an adjusting screw, a nut, a sleeve, a connecting head and a preload platform. The bottom of the sleeve is fixed with a connecting nut, the upper part is fixed with a connecting head, the upper part of the connecting head is fixed with a preload platform, and the nut is cooperatively connected with the adjusting screw.

[0008] As a further improvement of the present invention, a flat plate is welded to the bottom of the adjusting screw, the flat plate is circular in shape, and its diameter is larger than the bottom diameter of the screw.

[0009] As a further improvement of the present invention, the connector is a cylinder, and four insertion holes are evenly distributed on the circumferential surface of the cylinder, and the insertion holes are matched and connected with the long connecting rod and the short connecting rod.

[0010] As a further improvement of the present invention, the disassembly moving part includes two slides, two pulling members that can pull lining plate one or lining plate two, and an adjusting screw. The two slides are slidably arranged in parallel on the tightening fixing part, and the pulling members are slidably arranged on the slides respectively. The sliding direction of the pulling members is perpendicular to the sliding direction of the slides, and the two pulling members are connected by an adjusting screw that can adjust the relative distance between the two.

[0011] As a further improvement of the present invention, the pulling member includes a translation platform, a rotating plate and a cara rod. The rotating plate is rotatably arranged at the lower part of the translation platform, and two cara rods are fixed on one side of the translation platform. The distance between the two cara rods is the same as the distance between the upper and lower bolt holes of liner one or liner two. A small boss is provided on the circumference of the cara rod on the side away from the rotating plate, and the sum of the outer diameter of the cara rod and the height of the small boss is smaller than the diameter of the bolt hole of liner one or liner two.

[0012] As a further improvement of the present invention, the translation platform includes a height adjustment part, a screw matching sleeve, and a clamping plate. A height adjustment part with adjustable height is fixed to the lower part of the clamping plate. The lower end of the height adjustment part is rotatably connected to the rotating plate. A screw matching sleeve is provided on the upper part of the clamping plate. A threaded hole is opened on the screw matching sleeve on one of the translation platforms, which is threadably matched with the adjusting screw. The screw matching sleeve on the other translation platform is rotatably matched with the adjusting screw.

[0013] As a further improvement of the present invention, the height adjustment member includes a threaded shaft and a threaded barrel, the threaded barrel is fixed to the lower part of the clamping plate, the threaded shaft is cooperatively connected with the threaded barrel, and the rotating plate is rotatably connected with the threaded shaft.

[0014] As a further improvement of the present invention, a protruding rotating handle is provided at one end of the adjusting screw.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] 1. The device can be fixed in the sleeve of the universal joint shaft by tightening the fixing part, and the liner can be removed and installed by manually adjusting and disassembling the moving part, which is labor-saving and convenient, avoiding the difficulty of loading and unloading caused by the liner being difficult to grasp, and the phenomenon of squeezing and hitting the hands;

[0017] 2. Through the cooperation of the movable bottom plate and the preload adjustment column, the structure is simple, so that the device can be fixed in the sleeve of the universal joint shaft;

[0018] 3. By welding a flat plate at the bottom of the adjusting screw, the contact area between the movable bottom plate and the adjusting screw can be increased, so that the preload adjustment column can be more firmly fixed between the movable bottom plate and the inner wall of the universal joint sleeve.

[0019] 4. Insert the long connecting rod and the short connecting rod into the socket to complete the matching and fixing of the connecting head with the long connecting rod and the short connecting rod, which is easy to assemble and disassemble.

[0020] 5. The disassembly moving part is set in the form of a slide, a pulling member and an adjusting screw, and the pulling member is used to grab the lining. In addition, the pulling member is set in the form of a pull rod, and the pull rod can be extended into the bolt hole of the lining to complete the grabbing of the lining. The operation is convenient, saving time and effort.

[0021] 6. By adjusting the distance between the two pulling parts with an adjusting screw, it can be suitable for grabbing linings with bolt holes of different spacings, thereby expanding the scope of use. In addition, in the pulling part, the rotating plate is rotatably connected to the translation table, and the adjusting pull rod can be rotated. Therefore, after the pull rod has disassembled and assembled the liner one on one side of the universal joint, the rotating plate can be directly rotated 180 degrees to align the pull rod with the liner two on the other side of the universal joint to complete the disassembly and assembly of the liner two, thereby avoiding the inconvenience of removing the entire device and then installing and fixing it when disassembling and assembling the liner two on the other side.

[0022] 7. A protruding rotating handle is provided at one end of the adjusting screw, so that it is convenient for people to hold the adjusting screw and rotate it. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of a universal joint shaft sleeve liner replacement device of the present invention;

[0025] Figure 2 for Figure 1 A magnified view at point A;

[0026] Figure 3 It is a structural schematic diagram of the universal joint shaft sleeve liner replacement device of the present invention working in the universal joint shaft;

[0027] Figure 4 It is a structural schematic diagram of a preload adjustment column;

[0028] Figure 5 is a schematic diagram of the three-dimensional structure of the pulling member;

[0029] Figure 6 It is a schematic diagram of the planar structure of the pulling member;

[0030] Figure 7 for Figure 6 Enlarged view at B;

[0031] In the figure: 1 tightening fixing part, 11 movable bottom plate, 12 pre-tightening adjustment column, 121 adjusting screw, 122 nut, 123 sleeve, 124 connector, 1241 socket, 125 pre-tightening platform, 126 flat plate, 13 long connecting rod, 14 short connecting rod, 2 disassembling moving part, 21 slide, 22 pulling member, 221 translation stage, 2211 height adjusting member, 22111 threaded shaft, 22112 threaded cylinder, 2212 screw matching sleeve, 2213 clamping plate, 222 rotating plate, 223 clamping rod, 224 small boss, 23 adjusting screw, 231 rotating handle, 3 liner one, 4 universal joint shaft, 5 liner two, 6 bolt holes. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-7 The present invention is described in further detail.

[0033] An embodiment of the present invention discloses a universal joint shaft sleeve liner replacement device, including a tightening and fixing part 1 and a disassembling and moving part 2, wherein the disassembling and moving part 2 drives a liner 3 to be movably arranged on the tightening and fixing part 1, and the tightening and fixing part 1 is adjustably tightened and fixed in the sleeve of the universal joint shaft 4.

[0034] In this embodiment, the tightening and fixing part 1 includes a movable bottom plate 11, a pre-tightening adjustment column 12, a long connecting rod 13, and a short connecting rod 14. The movable bottom plate 11 is horizontally placed at the bottom of the sleeve of the universal joint 4. There are four pre-tightening adjustment columns 12, which are connected one by one through the long connecting rod 13 and the short connecting rod 14 to form a rectangle. The pre-tightening adjustment column 12 is placed on the upper part of the movable bottom plate 11. The specific structure of the preload adjustment column 12 is as follows: it includes an adjusting screw 121, a nut 122, a sleeve 123, a connecting head 124 and a preload platform 125. The bottom of the sleeve 123 is fixedly connected to the nut 121, and the upper part is fixedly connected to the connecting head 124. The connecting head 124 is a cylinder, and four sockets 1241 are evenly distributed on its circumferential surface. The sockets 1241 are matched and connected with the long connecting rod 13 and the short connecting rod 14. The long connecting rod 13 and the short connecting rod 14 are inserted into the sockets 1241, and the assembly and disassembly are simple; the upper part of the connecting head 124 is fixed with the preload platform 125, and the nut 121 is matched and connected with the adjusting screw 121.

[0035] In addition, a flat plate 126 can be welded to the bottom of the adjusting screw 121, and the flat plate 126 is circular in shape and its diameter is larger than the bottom diameter of the screw 121; by welding the flat plate to the bottom of the adjusting screw 121, the contact area between the movable base plate 11 and the adjusting screw 121 can be increased, so that the preload adjustment column 12 can be more firmly fixed between the movable base plate 11 and the inner wall of the universal joint sleeve.

[0036] In this embodiment, the disassembly moving part 2 includes two slides 21, two pulling members 22 that can pull lining plate 1 3 or lining plate 2 5, and an adjusting screw 23. A protruding rotating handle is provided at one end of the adjusting screw, which is convenient for people to hold and rotate the adjusting screw. The two slides 21 are slidably and detachably arranged in parallel on the tightening fixing part 1, and the pulling members 22 are slidably arranged on the slides 21 respectively. The sliding direction of the pulling members 22 is perpendicular to the sliding direction of the slides 21. The two pulling members 22 are connected by an adjusting screw 23 that can adjust the relative distance between the two. The distance between the two pulling members 22 can be adjusted by adjusting the lead screw, which can be suitable for grabbing the liner plates with bolt holes 6 at different intervals, thereby expanding the scope of use. In addition, in the pulling member 22, the rotating plate 222 is rotatably connected to the translation platform 221, and the adjusting rod 223 can be rotatably adjusted, so that after the adjusting rod 223 has disassembled the liner plate 3 on one side of the universal joint, the rotating plate 222 can be directly rotated 180 degrees to align the adjusting rod 223 with the liner plate 2 5 on the other side of the universal joint, so as to complete the disassembly and assembly of the liner plate 2 5, thereby avoiding the inconvenience of removing the entire device and then installing it again when disassembling the liner plate 2 5 on the other side.

[0037] In this embodiment, the structure of the pulling member 22 specifically includes a translation platform 221, a rotating plate 222 and a pull rod 223. The rotating plate 222 is rotatably arranged at the lower part of the translation platform 221, and two pull rods 223 are fixed on one side of the translation platform 221. The distance between the two pull rods 223 is the same as the distance between the upper and lower bolt holes 6 of the liner 1 3 or the liner 2 5. A small boss 224 is arranged on the circumference of the pull rod 223 on the side away from the rotating plate 222, and the sum of the outer diameter of the pull rod 223 and the height of the small boss 224 is less than the diameter of the bolt hole 6 on the liner 1 3 or the liner 2 5. In addition, the pull rod 223 structure provided in the pulling member 22 can extend the pull rod 223 into the bolt hole 6 of the liner, so as to complete the grabbing of the liner, which is convenient to operate and saves time and effort. The translation platform 221 can be clamped on the slide 21 to slide on the slide 21. Specifically, the translation platform 221 includes a height adjustment member 2211, a screw matching sleeve 2212, and a card plate 2213. A height adjustment member 2211 with adjustable height is fixed at the lower part of the card plate 2213. The lower end of the height adjustment member 2211 is rotatably connected with the rotating plate 222. A screw matching sleeve 2212 is provided at the upper part of the card plate 2213. A screw matching sleeve 2212 on one translation platform 221 has a threaded hole, which is threadedly matched with the adjusting screw 23. The screw matching sleeve 2212 on the other translation platform 221 is rotatably matched with the adjusting screw 23. The height adjustment member 2211 includes a threaded shaft 22111 and a threaded barrel 22112. The threaded barrel 22112 is fixed at the lower part of the card plate 2213. The threaded shaft 22111 is matched with the threaded barrel 22112. The rotating plate 222 is rotatably connected with the threaded shaft 22111.

[0038] The implementation principle of this embodiment is: mainly including the following implementation steps:

[0039] 1) Manually remove the mounting bolts of the lower liner 1 3 and the lower liner 2 5, place the movable bottom plate 11 horizontally at the bottom of the sleeve of the universal joint shaft 4, and place the tightening fixing part 1 on the movable bottom plate 11;

[0040] 2) Rotate the four adjusting screws 121 respectively to make the sleeve 123 move upward on the adjusting screws 121 until the upper part of the pre-tightening platform 125 contacts and presses against the inner wall of the sleeve of the universal joint shaft 4, and then the tightening fixing part 1 is fixed in the sleeve of the universal joint shaft 4;

[0041] 3) Push the disassembly moving part 2 so that the two carabiner rods 223 on one of the pulling members 22 are aligned with one pair of upper and lower bolt holes 6 on the lining plate 3, and then rotate the adjusting screw 23, and the other pulling member 22 moves under the adjustment of the adjusting screw 23 until the two carabiner rods 223 of the other pulling member 22 are aligned with the other pair of upper and lower bolt holes 6 on the lining plate 3;

[0042] 4) Push the two pulling members 22 to move toward the lining plate 3, insert the locking rod 223 into the bolt hole 6 of the lining plate 3, and continue to push the two pulling members 22 until the small boss 224 on the locking rod 223 completely leaks out from the other side of the lining plate 3;

[0043] 5) Rotate the threaded shaft 2211 to make the rotating plate 222 rise until the small boss 224 can clamp the side of the liner 3; then push the pulling member 22 away from the liner 3 until the liner 3 is pulled out from the circumferential wall of the sleeve of the universal joint shaft 4;

[0044] 6) Pull the pulling member 22 toward the tube mouth of the universal joint shaft 4 until it reaches the limit position;

[0045] 7) Remove the liner plate 3 from the cara rod 223, hang a new liner plate 3 on the cara rod 223, and push the pulling member 22 into the tube of the universal joint shaft 4 until the liner plate 3 corresponds to the installation position on the universal joint shaft 4; then push the pulling member 22 in the direction of the installation position of the liner plate 3 until the liner plate 3 is installed on the circumferential wall of the universal joint shaft 4;

[0046] 8) Rotate the threaded shaft 2211 in the direction opposite to the rotation direction of the threaded shaft 2211 in step 5) to lower the rotating plate 222 until the small boss 224 does not get stuck on the liner 3, and then pull the pull rod 22 out of the bolt hole 6 of the liner 3;

[0047] 9) Rotate the rotating plate 222 180 degrees so that the cara rod 223 faces the liner plate 25 on the opposite side, and replace the liner plate 25 in the same manner as steps 3)-8);

[0048] 10) Rotate the sleeve 123 to make it descend until the preload platform 125 is separated from the inner wall of the sleeve of the universal joint shaft 4, then take out the entire device except the movable bottom plate 11, and finally take out the movable bottom plate 11;

[0049] 11) Manually install the mounting bolts of liner 1 3 and liner 2 5.

[0050] The present invention has very good beneficial technical effects: by tightening the fixing part 1, the device can be fixed in the sleeve of the universal joint shaft, and by manually adjusting the disassembly moving part 2, the liner can be disassembled and installed, which is labor-saving and convenient, avoiding the difficulty of loading and unloading caused by the liner being difficult to grasp, and the phenomenon of easy squeezing and hitting of hands;

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A universal joint sleeve liner replacement device, characterized in that: It comprises a tightening and fixing part (1) and a disassembling and moving part (2), wherein the disassembling and moving part (2) drives a liner plate (3) to be movably arranged on the tightening and fixing part (1), and the tightening and fixing part (1) is adjustably tightened and fixed in a sleeve of a universal joint shaft (4); The tightening and fixing part (1) comprises a movable bottom plate (11), a pre-tightening adjustment column (12), a long connecting rod (13), and a short connecting rod (14); the movable bottom plate (11) is horizontally placed at the bottom of the sleeve of the universal joint (4); there are four pre-tightening adjustment columns (12), which are connected one by one through the long connecting rod (13) and the short connecting rod (14) to form a rectangle; the pre-tightening adjustment column (12) is placed on the upper part of the movable bottom plate (11); The disassembly moving part (2) comprises two slides (21), two pulling members (22) capable of pulling lining plate one (3) or lining plate two (5), and an adjusting screw (23); the two slides (21) are slidably and detachably arranged in parallel on the tightening fixing part (1); the pulling members (22) are slidably arranged on the slides (21), respectively; the sliding direction of the pulling members (22) is perpendicular to the sliding direction of the slides (21); the two pulling members (22) are connected by means of an adjusting screw (23) capable of adjusting the relative distance between the two. The pulling member (22) comprises a translation platform (221), a rotating plate (222) and a pull rod (223). The rotating plate (222) is rotatably arranged at the lower part of the translation platform (221), and two pull rods (223) are fixed on one side of the translation platform (221) up and down. The distance between the two pull rods (223) is the same as the distance between the upper and lower bolt holes (6) on the liner plate 1 (3) or the liner plate 2 (5). A small boss (224) is provided on the circumference of the pull rod (223) on the side away from the rotating plate (222), and the sum of the outer diameter of the pull rod (223) and the height of the small boss (224) is smaller than the diameter of the bolt hole (6) on the liner plate 1 (3) or the liner plate 2 (5).

2. A universal joint sleeve liner replacement device according to claim 1, characterized in that: The preload adjustment column (12) comprises an adjustment screw (121), a nut (122), a sleeve (123), a connecting head (124) and a preload platform (125); the sleeve (123) is fixedly connected to the nut (122) at the bottom and fixedly connected to the connecting head (124) at the top; the preload platform (125) is fixedly connected to the top of the connecting head (124); the nut (122) is cooperatively connected to the adjustment screw (121).

3. A universal joint sleeve liner replacement device according to claim 2, characterized in that: A flat plate (126) is welded to the bottom of the adjusting screw rod (121); the flat plate (126) is circular in shape, and its diameter is larger than the bottom diameter of the screw rod (121).

4. A universal joint sleeve liner replacement device according to claim 2, characterized in that: The connecting head (124) is a cylinder, and four insertion holes (1241) are evenly distributed on its circumferential surface. The insertion holes (1241) are matched and connected with the long connecting rod (13) and the short connecting rod (14).

5. The universal joint sleeve liner replacement device according to claim 1, characterized in that: The translation platform (221) comprises a height adjustment member (2211), a screw matching sleeve (2212), and a clamping plate (2213). A height adjustment member (2211) whose height can be adjusted is fixed to the lower part of the clamping plate (2213). The lower end of the height adjustment member (2211) is rotatably connected to the rotating plate (222). A screw matching sleeve (2212) is provided on the upper part of the clamping plate (2213). A threaded hole is formed in the screw matching sleeve (2212) on one of the translation platforms (221) and is threadably matched with the adjusting screw (23). The screw matching sleeve (2212) on the other translation platform (221) is rotatably matched with the adjusting screw (23).

6. A universal joint sleeve liner replacement device according to claim 5, characterized in that: The height adjustment member (2211) comprises a threaded shaft (22111) and a threaded barrel (22112); the threaded barrel (22112) is fixed to the lower part of the clamping plate (2213); the threaded shaft (22111) and the threaded barrel (22112) are cooperatively connected; and the rotating plate (222) and the threaded shaft (22111) are rotatably connected.

7. A universal joint sleeve liner replacement device according to claim 1, characterized in that: A protruding rotating handle (231) is provided at one end of the adjusting screw (23).

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