Universal shaft spline tooth installation tool

CN224795602UActive Publication Date: 2026-09-25TIANJIN ZHONGZHONG TECH ENG CO LTD
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Patent Information

Application Number
CN202522070410.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-09-25
Estimated Expiration
2035-09-25

AI Technical Summary

Benefits of technology

[0026]通过锁紧组件固定万向轴外花键和万向轴内花键之间的相对位置,利于设备的正确安装,通过顶升组件调节万向轴外花键的位置,以及提高设备的安装效率。

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Abstract

The utility model provides a kind of universal shaft spline tooth installation tool, comprising: jacking assembly, the output end of jacking assembly is tightly universal shaft outer spline bottom;Locking assembly, the locking assembly is made of locking ring and multiple locking hooks;The locking ring is close to the end face of universal shaft outer spline and is provided with jacking assembly, and the output end of jacking assembly is tightly universal shaft outer spline;Multiple the locking hook is connected to the outside of locking ring, and the hook head of locking hook hooks universal shaft inner spline;Locking ring and locking hook form the clamping position for fixing universal shaft outer spline and universal shaft inner spline between it.The utility model has beneficial effects: the relative position between universal shaft outer spline and universal shaft inner spline is fixed by locking assembly, beneficial to the correct installation of equipment, the position of universal shaft outer spline is adjusted by jacking assembly, and the installation efficiency of equipment is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of universal joint spline installation, and in particular relates to a universal joint spline tooth installation tool. Background Technology

[0002] In recent years, my country's steel product market has undergone significant changes. With the global goal of carbon neutrality, higher requirements have been placed on efficient and energy-saving hot rolling processes and the quality of hot-rolled strip steel. Rolling mills with roll shifting functions have been designed in this context. However, to adapt to the new rolling mill functions, existing universal joints may encounter difficulties in on-site installation after structural modifications. Utility Model Content

[0003] In view of this, the present invention aims to provide a universal joint spline installation tool in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A universal joint spline installation tool, comprising:

[0006] The lifting assembly, the output end of which presses against the bottom of the external spline of the universal joint;

[0007] A locking assembly, comprising a locking ring and multiple locking hooks;

[0008] A clamping component is provided on the end face of the locking ring near the external spline of the universal joint, and the output end of the clamping component clamps the external spline of the universal joint; a plurality of locking hooks are connected to the outside of the locking ring, and the hook head of the locking hook hooks onto the internal spline of the universal joint; a clamping position for fixing the external spline and the internal spline of the universal joint is formed between the locking ring and the locking hooks.

[0009] Furthermore, the locking ring includes:

[0010] A semi-ring structure, wherein both ends of the semi-ring structure are hinged to connecting members;

[0011] There are two fan-shaped structural components. The two fan-shaped structural components are spliced ​​with the semi-ring structural component to form a complete ring structure. One end of the fan-shaped structural component is hinged to the connector, and the other end is connected to another fan-shaped structural component by a locking bolt.

[0012] Furthermore, one sector-shaped structural component has a through hole, and another sector-shaped structural component has a threaded groove corresponding to the through hole. The locking bolt is located inside the through hole, and the locking bolt passes through the through hole and is threaded into the threaded groove.

[0013] Furthermore, two locking hooks are symmetrically arranged on the semi-ring structure, and a positioning groove corresponding to the tightening component is opened between the two locking hooks. The housing of the tightening component is inserted into the positioning groove.

[0014] Furthermore, the two fan-shaped structural components have the same central angle, and each of the two fan-shaped structural components is provided with a locking hook and a positioning groove, with the housing of the clamping assembly inserted into the positioning groove.

[0015] Furthermore, the end of the locking hook furthest from the hook head is hinged to the locking ring.

[0016] Furthermore, the lifting assembly includes:

[0017] A movable component, wherein the movable component is used to adjust the horizontal position of the external spline of the universal joint, and the movable part of the movable component is fixedly provided with a guide post;

[0018] A guide plate has a guide groove at its bottom corresponding to a guide post, the guide post is inserted into the guide groove, and a lifting assembly is provided between the guide plate and the moving assembly, the output end of the lifting assembly is pressed against the guide plate;

[0019] The tray is fixed to the top of the guide plate, and the tray has a groove corresponding to the external spline of the universal joint, with the external spline of the universal joint located inside the groove.

[0020] Furthermore, the moving component includes:

[0021] The support frame is equipped with pulleys at its bottom;

[0022] The base has a slide rail corresponding to the pulley, the pulley is located inside the slide rail, and the support frame is movably connected to the top of the base through the pulley.

[0023] Furthermore, the pulleys are provided in two sets, which are arranged on both sides of the support frame along the moving direction of the support frame. One set of pulleys is a flat pulley, and the other set is a concave pulley.

[0024] The slide rail is provided with two rails, each corresponding to a set of pulleys. The slide rail corresponding to the flat pulley is a flat track, and the slide rail corresponding to the concave pulley is a convex track.

[0025] Compared with the prior art, the universal joint spline installation tool of this utility model has the following advantages:

[0026] The locking assembly secures the relative positions of the external and internal splines of the universal joint, facilitating proper installation. The lifting assembly adjusts the position of the external spline of the universal joint, thereby improving installation efficiency. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the installation tool described in an embodiment of this utility model;

[0029] Figure 2 This is a side view of the locking assembly according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the locking ring in the open state according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the locking ring in its closed state according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the lifting component structure according to an embodiment of the present utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Locking ring; 11. Semi-ring structural component; 12. Fan-shaped structural component; 13. Connecting component; 14. Locking bolt; 15. Positioning groove; 2. Locking hook; 3. Lifting assembly; 31. Guide plate; 32. Support plate; 33. Support frame; 34. Base; 35. Guide column; 36. Flat wheel; 37. Concave wheel; 4. Tightening assembly; 5. Lifting assembly; 6. Universal shaft external spline; 7. Universal shaft internal spline. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] A universal joint spline installation tool, comprising:

[0040] Lifting component 3, the output end of which presses against the bottom of the universal joint external spline 6;

[0041] A locking assembly, comprising a locking ring 1 and a plurality of locking hooks 2;

[0042] A clamping component 4 is provided on the end face of the locking ring 1 near the external spline 6 of the universal joint. The output end of the clamping component 4 clamps the external spline 6 of the universal joint. A plurality of locking hooks 2 are connected to the outside of the locking ring 1, and the hook head of the locking hook 2 hooks the internal spline 7 of the universal joint. A clamping position for fixing the external spline 6 and the internal spline 7 of the universal joint is formed between the locking ring 1 and the locking hooks 2.

[0043] The locking ring 1 includes:

[0044] A semi-ring structure 11, wherein both ends of the semi-ring structure 11 are hinged to connecting members 13;

[0045] There are two fan-shaped structural components 12. The two fan-shaped structural components 12 are spliced ​​with the semi-ring structural component 11 to form a complete ring structure. One end of the fan-shaped structural component 12 is hinged to the connector 13, and the other end is connected to another fan-shaped structural component 12 by a locking bolt 14.

[0046] One sector-shaped structural component 12 has a through hole, and another sector-shaped structural component 12 has a threaded groove corresponding to the through hole. The locking bolt 14 is located inside the through hole, and the locking bolt 14 passes through the through hole and is threaded into the threaded groove.

[0047] Two locking hooks 2 are symmetrically arranged on the semi-ring structure 11. A positioning groove 15 corresponding to the tightening component 4 is opened between the two locking hooks 2. The housing of the tightening component 4 is inserted into the positioning groove 15.

[0048] The two fan-shaped structural members 12 have the same central angle. Each of the two fan-shaped structural members 12 is provided with a locking hook 2 and a positioning groove 15. The housing of the clamping assembly 4 is inserted into the positioning groove 15.

[0049] The locking hook 2 is hinged to the locking ring 1 at the end furthest from the hook head.

[0050] The lifting component 3 includes:

[0051] A movable component is used to adjust the horizontal position of the external spline 6 of the universal joint, and the movable part of the movable component is fixedly provided with a guide post 35.

[0052] Guide plate 31, the bottom of the guide plate 31 has a guide groove corresponding to the guide post 35, the guide post 35 is inserted into the guide groove, and a lifting component 5 is provided between the guide plate 31 and the moving component, the output end of the lifting component 5 is pressed against the guide plate 31;

[0053] The support plate 32 is fixed to the top of the guide plate 31. The support plate 32 has a groove corresponding to the external spline 6 of the universal shaft, which is located inside the groove.

[0054] The moving component includes:

[0055] Support frame 33, the bottom of which is provided with pulleys;

[0056] The base 34 has a slide rail corresponding to the pulley, the pulley is located inside the slide rail, and the support frame 33 is movably connected to the top of the base 34 through the pulley.

[0057] The pulleys are provided in two sets, which are arranged on both sides of the support frame 33 along the moving direction of the support frame 33. One set of pulleys is a flat pulley 36, and the other set is a concave pulley 37.

[0058] The slide rail is provided with two rails, each corresponding to a set of pulleys. The slide rail corresponding to the flat pulley 36 is a flat track, and the slide rail corresponding to the concave pulley 37 is a convex track.

[0059] Work process:

[0060] In this embodiment, the clamping component 4 is specifically a hydraulic jack, the lifting component 5 is specifically a lifting jack, and it is briefly described that the universal joint external spline 6 is an external spline and the universal joint internal spline 7 is an internal spline.

[0061] The internal spline is already installed on the output shaft of the reducer when it leaves the factory. When installing the external spline, after the external spline and the internal spline are aligned, open the locking ring 1 in the locking assembly and place it on the intermediate shaft of the universal joint. Then close the locking ring 1 and adjust the position of the locking ring 1 so that the hook head of the locking hook 2 is locked on the shoulder of the inner ring of the universal joint. Place the hydraulic jack in the positioning groove 15 and manually or automatically fill the rodless chamber of the hydraulic jack with oil so that the piston rod of the hydraulic jack is against the left end of the external spline cylinder structure. There are multiple hydraulic jacks. Repeat the above oil filling action in sequence so that all the hydraulic jacks are just under force.

[0062] The lifting assembly 3 is placed at the lower end of the outer splined cylinder. The flat wheel 36 and concave wheel 37 are fixedly installed at the bottom of the support frame 33. The support frame 33 moves along the axis of the universal joint on the base 34 via wheels. The base 34 is provided with corresponding flat and convex rails for guidance. The relative position of the base 34 and the support frame 33 is adjusted to meet the movement distance during the assembly process. The guide plate 31 is installed on the support frame 33 via a guide rod to constrain the movement of the guide plate 31 in the vertical direction. The lifting jack is installed between the support frame 33 and the guide plate 31. The support plate 32 is a rubber pad placed on the guide plate 31. Oil is filled into the rodless chamber of the lifting jack, and the piston rod drives the guide plate 31 and the support plate 32 to move upward.

[0063] Use the lifting assembly 3 to lift the outer spline cylinder and bring it to a horizontal position. At the same time, fill the rodless chamber of the hydraulic jack with oil. The piston rod pushes the outer spline to the right until the spline is installed in place. During this process, the lifting assembly 3 moves continuously with the outer spline.

[0064] After installation, drain the oil from the rodless chamber of the hydraulic jack, remove the hydraulic jack, loosen the locking hook 2, open the locking ring 1, remove the locking assembly from the universal joint, drain the oil from the rodless chamber of the lifting jack, and remove the lifting assembly 3.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal joint spline installation tool, characterized in that, include: The lifting assembly (3) has its output end pressed against the bottom of the universal joint external spline (6); A locking assembly, comprising a locking ring (1) and a plurality of locking hooks (2); A clamping assembly (4) is provided on the end face of the locking ring (1) near the external spline (6) of the universal shaft. The output end of the clamping assembly (4) clamps the external spline (6) of the universal shaft. A plurality of locking hooks (2) are connected to the outside of the locking ring (1). The hook head of the locking hook (2) hooks the internal spline (7) of the universal shaft. A clamping position for fixing the external spline (6) and the internal spline (7) of the universal shaft is formed between the locking ring (1) and the locking hooks (2).

2. The universal joint spline installation tool according to claim 1, characterized in that, The locking ring (1) includes: A semi-ring structure (11), wherein the two ends of the semi-ring structure (11) are hinged with connectors (13); There are two fan-shaped structural components (12). The two fan-shaped structural components (12) are spliced ​​with the semi-ring structural component (11) to form a complete ring structure. One end of the fan-shaped structural component (12) is hinged to the connector (13), and the other end is connected to another fan-shaped structural component (12) by a locking bolt (14).

3. The universal joint spline installation tool according to claim 2, characterized in that: One sector-shaped structural component (12) has a through hole, and another sector-shaped structural component (12) has a threaded groove corresponding to the through hole. The locking bolt (14) is located inside the through hole and passes through the through hole and is threaded into the threaded groove.

4. The universal joint spline installation tool according to claim 2, characterized in that: Two locking hooks (2) are symmetrically arranged on the semi-ring structure (11). A positioning groove (15) corresponding to the tightening component (4) is opened between the two locking hooks (2). The housing of the tightening component (4) is inserted into the positioning groove (15).

5. A universal joint spline installation tool according to claim 2, characterized in that: The two fan-shaped structural members (12) have the same central angle. Each of the two fan-shaped structural members (12) is provided with a locking hook (2) and a positioning groove (15). The housing of the clamping assembly (4) is inserted into the positioning groove (15).

6. The universal joint spline installation tool according to claim 1, characterized in that: The locking hook (2) is hinged to the locking ring (1) at the end away from the hook head.

7. A universal joint spline installation tool according to claim 1, characterized in that, The lifting assembly (3) includes: A movable component is used to adjust the horizontal position of the external spline (6) of the universal joint, and the movable part of the movable component is fixedly provided with a guide post (35). Guide plate (31), the bottom of the guide plate (31) has a guide groove corresponding to the guide post (35), the guide post (35) is inserted into the guide groove, and a lifting component (5) is provided between the guide plate (31) and the moving component, the output end of the lifting component (5) is pressed against the guide plate (31); The tray (32) is fixed on the top of the guide plate (31). The tray (32) has a groove corresponding to the universal joint external spline (6). The universal joint external spline (6) is located inside the groove.

8. A universal joint spline installation tool according to claim 7, characterized in that, The moving component includes: A support frame (33) is provided with pulleys at its bottom; The base (34) has a slide rail corresponding to the pulley, the pulley is located inside the slide rail, and the support frame (33) is movably connected to the top of the base (34) through the pulley.

9. A universal joint spline installation tool according to claim 8, characterized in that: The pulleys are provided in two sets, and the two sets of pulleys are arranged on both sides of the support frame (33) along the moving direction of the support frame (33). One set of pulleys is a flat pulley (36), and the other set is a concave pulley (37). The slide rail is provided with two rails, each rail corresponding to a set of pulleys. The slide rail corresponding to the flat pulley (36) is a flat track, and the slide rail corresponding to the concave pulley (37) is a convex track.