Device facilitating disassembly of cardan shaft

Abstract

The utility model aims to provide a device convenient for disassembling a cardan shaft, which solves the problem that the cardan shaft is difficult to disassemble, and comprises a driving component, a lifting component and a rack, the driving component drives the rack to move, the lifting component is arranged on the rack, the driving component comprises an oil cylinder and a bottom plate, the rack is arranged on the bottom plate in a sliding manner, and the oil cylinder is arranged on the bottom plate. The rack is connected with the driving end of the oil cylinder; under the driving of the oil cylinder, the rack can slide to the bottom of the cardan shaft, under the driving of the motor, the worm drives the worm wheel to rotate, the worm wheel can ascend or descend on the worm wheel until the lifting arm supports the cardan shaft, and then under the driving of the oil cylinder, the cardan shaft is separated from the roller shaft, so that the cardan shaft is supported by the lifting arm and is not easy to fall off; therefore, the problem that the universal shaft is difficult to disassemble is solved.

Description

Technical Field

[0001] The utility model relates to the field of steel ball forging, in particular to a device for facilitating the disassembly of a universal shaft. Background Art

[0002] During the use of the ball rolling mill, the step of replacing the rollers is unavoidable. The rollers and the gearbox are connected by flanges. The first step in replacing the rollers is to disassemble the universal joint. However, the universal joint and the rollers are connected by flanges and fixed with a circle of pin-type screws. When disassembling, the flange must be lifted by a crane first, and then the screws are removed. Since they are pin-type screws, disassembly is inconvenient, and there are certain safety hazards when disassembling and assembling by a crane. Disassembly and assembly take a long time, which delays production output.

[0003] Change the traditional flange connection form, make the part that connects the roller shaft and the universal shaft into a flat head form, and at the same time make the universal shaft interface into an inward concave structure. Therefore, the disassembly of the universal shaft requires the re-setting of the device. Utility Model Content

[0004] The utility model aims to provide a device for facilitating the disassembly of a universal joint, thereby solving the problem that the universal joint is difficult to disassemble.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a device for disassembling a universal joint, comprising a driving assembly, a lifting assembly and a frame, wherein the driving assembly drives the frame to move, and the lifting assembly is arranged on the frame, and is characterized in that:

[0007] The driving assembly includes a cylinder and a base plate, the frame is slidably arranged on the base plate, and the frame is connected to the driving end of the cylinder;

[0008] The frame is hingedly provided with a base, the lifting assembly includes a motor, a conversion mechanism and a lifting arm, the motor and the conversion mechanism are arranged on the base, the conversion mechanism includes a worm, a worm wheel and a lead screw, the worm is connected to the motor driving end, the worm is meshed with the worm wheel, the worm wheel has a through hole, the through hole has an internal thread, the lead screw has an external thread, and the external thread on the lead screw is meshed with the internal thread in the through hole;

[0009] The screw rod can be raised and lowered in the worm gear, the upper end of the screw rod is connected to the lifting arm, the lifting arm is rotatably arranged on the frame, and the lifting arm is used to lift the universal joint shaft.

[0010] Optionally, a slide rail is provided on the bottom plate, a slide groove is provided on the frame, and the slide groove is slidably provided on the slide rail.

[0011] Optionally, a driving rod is provided at the driving end of the oil cylinder, a spherical bearing is provided at the end of the driving rod, a connecting plate is provided at the bottom of the frame, and the spherical bearing is rotatably provided on the connecting plate.

[0012] Optionally, the driving assembly further includes a support, and the oil cylinder is arranged on the support.

[0013] Optionally, a groove is provided on the lifting arm, and the groove is used to accommodate the universal joint.

[0014] Optionally, a connecting block is provided at the end of the lifting arm, an angle is formed between the connecting block and the extending direction of the lifting arm, and the screw rod is connected to the connecting block.

[0015] Optionally, the frame has a first column and a second column, a first vertical plate is provided on the first column, the base is hingedly provided on the first vertical plate, and the first column and the second column are respectively located on both sides of the frame.

[0016] Furthermore, a second vertical plate is provided on the second column, two bases are symmetrically provided, and two drive assemblies are symmetrically provided.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] The utility model provides a device for facilitating disassembly of a universal shaft. Under the drive of an oil cylinder, a machine frame can slide to the bottom of the universal shaft. Under the drive of a motor, a worm drives a worm wheel to rotate. The wire can rise or fall on the worm wheel until a lifting arm supports the universal shaft. Then, under the drive of the oil cylinder, the universal shaft is separated from the roller shaft. In this way, the universal shaft is supported by the lifting arm and is not easy to fall off, thereby solving the problem of difficult disassembly of the universal shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0020] Figure 1 This is a front view of a device for facilitating disassembly of a universal joint shaft according to a preferred embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Bottom view shown;

[0022] Figure 3 It is a three-dimensional view of the conversion mechanism;

[0023] Figure 4It is a structural diagram of the roller shaft and the universal joint.

[0024] The description of the accompanying drawings is as follows:

[0025] 1. Driving assembly; 2. Lifting assembly; 3. Frame; 4. Base; 5. Roller shaft; 11. Cylinder; 12. Bottom plate; 13. Slide rail; 14. Driving rod; 15. Spherical bearing; 16. Connecting plate; 17. Support; 21. Motor; 22. Conversion mechanism; 220. Through hole; 221. Worm; 222. Worm gear; 223. Screw; 23. Lifting arm; 24. Groove; 25. Connecting block; 31. Slide; 32. Universal joint; 33. First column; 34. Second column; 35. First vertical plate; 36. Second vertical plate. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 and Figure 2 and Figure 3 As shown, a device for facilitating disassembly of a universal joint includes a drive assembly 1, a lifting assembly 2 and a frame 3. The drive assembly 1 drives the frame 3 to move, the lifting assembly 2 is arranged on the frame 3, the drive assembly 1 includes a cylinder 11 and a base plate 12, the frame 3 is slidably arranged on the base plate 12, the frame 3 is connected to the driving end of the cylinder 11, and the cylinder 11 drives the frame 3 to move on the base plate 12.

[0030] A base 4 is hingedly provided on the frame 3, and the lifting assembly 2 includes a motor 21, a conversion mechanism 22 and a lifting arm 23. The motor 21 and the conversion mechanism 22 are arranged on the base 4. The conversion mechanism 22 includes a worm 221, a worm wheel 222 and a screw 223. The worm 221 is connected to the driving end of the motor 21, and the worm 221 is meshed with the worm wheel 222. The worm wheel 222 has a through hole 220, and the through hole 220 has an internal thread. The screw 223 has an external thread, and the external thread on the screw 223 is meshed with the internal thread in the through hole 220.

[0031] The oil cylinder 11 drives the frame 3 to move until the lifting arm 23 is located at the bottom of the universal shaft 32, and the screw rod 223 can rotate and rise in the worm gear 222. When the motor 21 drives the worm 221 to rotate, the worm 221 drives the worm gear 222 to rotate, and when the worm gear 222 rotates, the screw rod 223 can rise or fall in the through hole 220. The upper end of the screw rod 223 is connected to the lifting arm 23, and the lifting arm 23 is rotatably set on the frame 3. When the screw rod 223 rises or falls, the screw rod 223 drives the lifting arm 23 to rotate. The lifting arm 23 is used to lift the universal shaft 32. The lifting arm 23 rotates upward to lift the universal shaft 32. When the screw rod 223 pushes the lifting arm 23 upward to rotate, the base 4 is subjected to appropriate force to rotate to cooperate with the screw rod 223 to push the lifting arm 23 to rotate.

[0032] After the lifting arm 23 supports the universal shaft 32, the motor 21 stops driving, the positions of the worm 221 and the worm wheel 222 remain unchanged, the lifting arm 23 supports the universal shaft 32 and is also stationary, the cylinder 11 drives the frame 3 to move, the frame 3 indirectly drives the conversion mechanism 22 to move, and the lifting arm 23 separates the universal shaft 32 from the roller shaft 5.

[0033] A groove 24 is provided on the lifting arm 23, and the groove 24 is used to accommodate the universal shaft 32. After the universal shaft 32 is completely separated from the roller shaft 5, the universal shaft 32 is located in the groove 24, so that when the universal shaft 32 moves with the lifting arm 23, the universal shaft 32 is not easy to fall off from the lifting arm 23.

[0034] A connecting block 25 is provided at the end of the lifting arm 23. The connecting block 25 and the groove 24 are respectively located at both ends of the lifting arm 23. There is an angle between the connecting block 25 and the extension direction of the lifting arm 23. The screw rod 223 is rotatably connected to the connecting block 25.

[0035] The frame 3 has a first column 33 and a second column 34. A first vertical plate 35 is provided on the first column 33. The base 4 is hingedly provided on the first vertical plate 35. The lifting arm 23 is rotatably provided on the first vertical plate 35. The lifting arm 23 is located on the upper part of the base 4. The first column 33 and the second column 34 are respectively located on both sides of the frame 3.

[0036] A second vertical plate 36 is provided on the second column 34 , two bases 4 are symmetrically provided, and two driving assemblies 1 are symmetrically provided. In this way, the two lifting arms 23 are symmetrically provided and can lift two universal shafts 32 at the same time.

[0037] A slide rail 13 is provided on the base plate 12, and a slide groove 31 is provided on the rack 3. The slide groove 31 is slidably set on the slide rail 13. The slide rail 13 and the slide rail 13 are symmetrically arranged in a pair. The two slide rails 13 are located on both sides of the base plate 12, and the two slide grooves 31 are located on both sides of the bottom of the rack 3. In this way, the rack 3 slides more stably on the base plate 12.

[0038] A driving rod 14 is provided at the driving end of the oil cylinder 11, and a joint bearing 15 is provided at the end of the driving rod 14. A connecting plate 16 is provided at the bottom of the frame 3. The joint bearing 15 is rotatably set on the connecting plate 16. A pair of connecting plates 16 are provided. The joint bearing 15 is rotatably set between the two connecting plates 16 to prevent the frame 3 from getting stuck on the base plate 12. The joint bearing 15 plays a buffering role.

[0039] The driving assembly 1 further includes a support 17 , on which the oil cylinder 11 is disposed, and the support 17 has a fixing effect on the oil cylinder 11 .

[0040] like Figure 4 As shown, the roller shaft 5 extends into the cardan shaft 32 , and the roller shaft 5 and the cardan shaft 32 are combined together.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for facilitating the disassembly of a universal joint, comprising a drive assembly (1), a lifting assembly (2) and a frame (3), wherein the drive assembly (1) drives the frame (3) to move, and the lifting assembly (2) is arranged on the frame (3), and is characterized in that: The driving assembly (1) comprises an oil cylinder (11) and a base plate (12), the frame (3) is slidably arranged on the base plate (12), and the frame (3) is connected to the driving end of the oil cylinder (11); A base (4) is hingedly provided on the frame (3), and the lifting assembly (2) includes a motor (21), a conversion mechanism (22) and a lifting arm (23). The motor (21) and the conversion mechanism (22) are provided on the base (4). The conversion mechanism (22) includes a worm (221), a worm wheel (222) and a screw (223). The worm (221) is connected to the driving end of the motor (21). The worm (221) is meshed with the worm wheel (222). The worm wheel (222) has a through hole (220). An internal thread is provided in the through hole (220). The screw (223) has an external thread. The external thread on the screw (223 meshes with the internal thread in the through hole (220). The screw rod (223) can be raised and lowered in the worm wheel (222); the upper end of the screw rod (223) is connected to the lifting arm (23); the lifting arm (23) is rotatably arranged on the frame (3); and the lifting arm (23) is used to lift the universal joint.

2. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: A slide rail (13) is provided on the bottom plate (12), a slide groove (31) is provided on the frame (3), and the slide groove (31) is slidably provided on the slide rail (13).

3. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: The driving end of the oil cylinder (11) is provided with a driving rod (14), the end of the driving rod (14) is provided with a joint bearing (15), the bottom of the frame (3) is provided with a connecting plate (16), and the joint bearing (15) is rotatably provided on the connecting plate (16).

4. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: The driving assembly (1) further comprises a support (17), and the oil cylinder (11) is arranged on the support (17).

5. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: A groove (24) is provided on the lifting arm (23), and the groove (24) is used to accommodate the universal shaft.

6. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: A connecting block (25) is provided at the end of the lifting arm (23), an angle is formed between the connecting block (25) and the extending direction of the lifting arm (23), and the screw rod (223) is connected to the connecting block (25).

7. The device for facilitating disassembly of a universal joint according to claim 1, characterized in that: The frame (3) has a first column (33) and a second column (34); a first vertical plate (35) is provided on the first column (33); the base (4) is hingedly provided on the first vertical plate (35); the first column (33) and the second column (34) are respectively located on both sides of the frame (3); and the lifting arm (23) is rotatably provided on the first vertical plate (35).

8. The device for facilitating disassembly of a universal joint according to claim 7, characterized in that: A second vertical plate (36) is provided on the second upright column (34), two bases (4) are symmetrically provided, and two drive assemblies (1) are symmetrically provided.

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