Universal joint with end anti-disengagement function

Abstract

The utility model relates to the field of universal joints, and discloses a universal joint with an end anti-disengagement function, which comprises a transmission component and a connecting component, and the transmission component is fixedly mounted at one end of the connecting component; the transmission part comprises a transmission shaft and clamping blocks, the clamping blocks are evenly arranged on the outer surface of one end of the transmission shaft, the outer surfaces of the clamping blocks are in threaded connection with fastening screws, a first inserting hole is formed in the center of one end face of the transmission shaft, and clamping teeth are arranged on the outer surface of one end of the transmission shaft and located between the clamping blocks; according to the universal joint, the transmission part and the connecting part are connected in a matched mode, so that the end of the universal joint can be well prevented from falling off, and when the transmission shaft at the end of the universal joint is abraded, the transmission shaft at the end of the universal joint can be replaced.

Description

Technical Field

[0001] The utility model relates to the field of universal joints, in particular to a universal joint with an end portion anti-slipping function. Background Art

[0002] The universal joint is a device that can maintain constant angular velocity during the transmission process. Its unique performance characteristics make it widely used in the fields of automobiles, heavy machinery and equipment, and ships. The basic principle of the universal joint is to structurally ensure that the force transmission point of the universal joint is always located on the bisector of the angle between the master and slave shafts during operation. In this way, no matter how the angle between the two shafts changes, the center of the force transmission steel ball is located on the bisector of the angle, thus ensuring constant angular velocity transmission.

[0003] Universal joints are mainly used in the steering system of automobiles, engine output shafts, etc. Universal joints play an important role in transmitting torque and rotating smoothly. They solve the shortcomings of ordinary universal joints in changing speed at large deflection angles, ensuring the safety and stability of automobiles when driving.

[0004] However, during the use of existing universal joints, conventional retaining ring groove structure designs generally adopt a 90° groove bottom structure design. After the product is installed in the inner spline hole, there is a risk of low pull-out force or easy disengagement, so it cannot play a good role in preventing the end from disengaging. Moreover, after the universal joint end is worn, the universal joint end cannot be replaced. Therefore, after the universal joint end is worn and cannot be used, the universal joint can only be replaced as a whole, resulting in a waste of resources. Utility Model Content

[0005] The purpose of the utility model is to provide a universal joint with an end anti-slipping function, and to solve the following technical problems: how to make the end of the universal joint play a good role in preventing the end from slipping out, and how to replace the end of the universal joint when the end of the universal joint is worn.

[0006] The purpose of the utility model can be achieved through the following technical solutions: A universal joint with an end anti-slip function, comprising: a transmission component and a connecting component, wherein the transmission component is fixedly mounted on one end of the connecting component;

[0007] The transmission component comprises a transmission shaft and a clamping block, wherein the clamping block is evenly arranged on the outer surface of one end of the transmission shaft, a fastening screw is threadedly connected to the outer surface of the clamping block, a first plug hole is provided at the center of one end surface of the transmission shaft, a clamping tooth is provided on the outer surface of one end of the transmission shaft and between the clamping blocks, an annular limiting groove is provided on the outer surface of the other end of the transmission shaft, a clamping spring is clamped inside the annular limiting groove, and a transmission tooth groove is provided on the end of the outer surface of the transmission shaft away from the clamping block;

[0008] The bottom of the annular limit groove is set at an oblique angle of 105 degrees, the width of the annular limit groove is 2.2 mm, the diameter of the retaining spring is 1.8 mm, and the drooping amount of the bottom end of the retaining spring inside the annular limit groove is 15.46 mm.

[0009] As a preferred solution of the utility model: the connecting component includes a driving shaft and a spherical shell, one end of the driving shaft is movably clamped in one end of the spherical shell, a rubber sleeve is arranged between the driving shaft and the spherical shell, threaded holes are evenly arranged on the outer surface of one end of the spherical shell, a second plug-in hole is arranged on one end surface of the spherical shell, and a clamping groove is arranged inside the second plug-in hole.

[0010] As a preferred solution of the utility model: one end of the transmission shaft is plugged into one end surface of the spherical shell through the second plug hole.

[0011] As a preferred solution of the utility model: the transmission shaft is engaged with the engaging groove via engaging teeth on the outer surface of one end.

[0012] As a preferred solution of the utility model: the transmission shaft is clamped with the outer surface of one end of the spherical shell through a clamping block.

[0013] As a preferred solution of the utility model: the fastening screw passes through the clamping block and is threadedly connected with the threaded hole.

[0014] As a preferred solution of the present utility model: a limiting column is arranged inside the second plug-in hole, and the transmission shaft is plugged into the limiting column through the first plug-in hole at one end.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model connects the transmission component and the connecting component by plugging them together and fastening them together. When one end of the transmission component is worn, the transmission component can be disassembled and replaced, so that the connecting component can continue to be used without avoiding the removal of the entire universal joint, thereby achieving the purpose of saving resources and reducing maintenance costs;

[0017] (2) The utility model adopts a 105° bevel angle at the bottom of the annular limit groove at one end of the transmission shaft, and widens the retaining spring groove width by 0.2mm. This allows one end of the transmission shaft to be assembled and inserted into the inner hole. When the transmission shaft moves axially to the right, the circular retaining spring will move along the bevel angle of the bottom of the annular limit groove to the left side of the bevel angle, thereby reducing the amount of sagging of the retaining spring and ensuring that one end of the transmission shaft can be installed smoothly. Moreover, the diameter of the high bevel angle is the same as that of the conventional 90° groove bottom structure. When one end of the transmission shaft is pulled out, the product moves axially to the left, and the circular retaining spring will move along the bevel angle of the bottom of the annular limit groove to the right side of the bevel angle, thereby increasing the amount of sagging of the retaining spring and ensuring that the retaining spring has a greater anti-escape blocking force. The structural design of the retaining spring inside the annular limit groove increases the amount of sagging of the circular retaining spring by 0.26mm, thereby increasing the anti-escape blocking force of the retaining spring.

[0018] (3) The utility model can effectively prevent the end of the universal joint from falling out through the adaptable connection between the transmission component and the connecting component, and can replace the transmission shaft at the end of the universal joint when the transmission shaft at the end of the universal joint is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a schematic diagram of the universal joint structure;

[0021] Figure 2 It is a schematic diagram of the cut-away end structure of the transmission component;

[0022] Figure 3 It is a schematic diagram of the cross-section structure of the transmission component;

[0023] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 5 Schematic diagram of the connecting parts structure.

[0025] Description of the drawings: 1. Transmission component; 2. Connecting component; 11. Transmission shaft; 12. Snap-in block; 13. Snap-in tooth; 14. First plug-in hole; 15. Fastening screw; 16. Transmission tooth groove; 17. Annular limit groove; 18. Retaining spring; 21. Threaded hole; 22. Snap-in groove; 23. Second plug-in hole; 24. Rubber sleeve; 25. Drive shaft; 26. Spherical shell. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 As shown, the utility model is a universal joint with an end anti-slip function, comprising: a transmission component 1 and a connecting component 2, wherein the transmission component 1 is fixedly mounted on one end of the connecting component 2;

[0028] The transmission component 1 includes a transmission shaft 11 and a clamping block 12, the clamping block 12 is evenly arranged on the outer surface of one end of the transmission shaft 11, the outer surface of the clamping block 12 is threadedly connected with a fastening screw 15, a first plug hole 14 is provided at the center of one end surface of the transmission shaft 11, a clamping tooth 13 is provided on the outer surface of one end of the transmission shaft 11 and located between the clamping block 12, an annular limiting groove 17 is provided on the outer surface of the other end of the transmission shaft 11, a retaining spring 18 is clamped inside the annular limiting groove 17, and a transmission tooth groove 16 is provided on the outer surface of the transmission shaft 11 at one end away from the clamping block 12;

[0029] The connecting component 2 includes a driving shaft 25 and a spherical shell 26. One end of the driving shaft 25 is movably clamped inside one end of the spherical shell 26. A rubber sleeve 24 is arranged between the driving shaft 25 and the spherical shell 26. Threaded holes 21 are evenly arranged on the outer surface of one end of the spherical shell 26. A second plug hole 23 is arranged on one end surface of the spherical shell 26. A clamping groove 22 is arranged inside the second plug hole 23.

[0030] One end of the transmission shaft 11 of the utility model is plugged into one end surface of the spherical shell 26 through the second plug hole 23, and the transmission shaft 11 is clamped with the clamping groove 22 through the clamping teeth 13 on the outer surface of one end, so that the spherical shell 26 can drive the transmission shaft 11 to rotate synchronously when it rotates. The transmission shaft 11 is clamped with the outer surface of one end of the spherical shell 26 through the clamping block 12, and the fastening screw 15 passes through the clamping block 12 and is threadedly connected with the threaded hole 21, which can ensure that the transmission component 1 and the connecting component 2 are firmly connected.

[0031] The bottom of the annular limit groove 17 of the utility model is set at an oblique angle of 105 degrees, and the width of the annular limit groove 17 is 2.2 mm, which is 0.2 mm increased compared with the existing size, and the diameter of the retaining spring 18 is 1.8 mm, and the drooping amount of the bottom end of the retaining spring 18 inside the annular limit groove 17 is 15.46 mm, which is 0.26 mm increased compared with the existing size. The sagging amount of the circular retaining spring 18 can prevent the end of the universal joint from falling out, and a limiting column is arranged inside the second plug hole 23, and the transmission shaft 11 is connected to the limiting column through the first plug hole 14 at one end, which can improve the stability of the connection between the transmission component 1 and the connecting component 2.

[0032] The working principle of the utility model: after the transmission component 1 and the connecting component 2 are used for a long time, the transmission tooth groove 16 at one end of the transmission shaft 11 will be worn, so that it cannot play a normal transmission role, so it is necessary to replace the transmission component 1 at one end of the connecting component 2. When replacing, first remove the universal joint as a whole, then turn the fastening screw 15 to separate it from the threaded hole 21, then pull the transmission shaft 11 to separate it from the second plug hole 23 at one end of the spherical shell 26, and then connect one end of the new transmission shaft 11 to the second plug hole 23 is aligned and plugged, and the card tooth 13 on the outer surface of one end of the transmission shaft 11 is carded with the card groove 22, and the card block 12 on the outer surface of one end of the transmission shaft 11 is aligned and carded with the outer surface of one end of the spherical shell 26, and then the fastening screw 15 is turned to fasten the threaded hole 21 to complete the replacement of the transmission component 1. In addition, the annular limit groove 17 at one end of the transmission shaft 11 adopts a groove bottom bevel of 105° and a widened retaining spring groove width of 0.2mm, which can make one end of the transmission shaft 11 assembled with the card slot 22. When entering the inner hole, one end of the transmission shaft 11 moves axially to the right, and the circular retaining spring 18 moves along the bottom bevel of the annular limiting groove 17 to the high position of the left bevel, thereby reducing the sagging amount of the retaining spring 18 and ensuring that one end of the transmission shaft 11 is smoothly installed, and the diameter at the high position of the bevel is the same as the diameter of the conventional 90° groove bottom structure; when one end of the transmission shaft 11 is pulled out, the product moves axially to the left, and the circular retaining spring 18 moves along the bottom bevel of the annular limiting groove 17 to the low position of the right bevel, thereby increasing the retaining spring 18. The effect of the drooping amount of the spring 18 ensures that the retaining spring 18 has a greater anti-slipping blocking force; and the structural design of the retaining spring 18 inside the annular limit groove 17 increases the drooping amount of the circular retaining spring 18 by 0.26mm, which can achieve the effect of increasing the anti-slipping blocking force of the retaining spring 18. Therefore, through the adaptive connection between the transmission component 1 and the connecting component 2, the end of the universal joint can play a good role in preventing the end from slipping out, and when the drive shaft 11 at the end of the universal joint is worn, the drive shaft 11 at the end of the universal joint can be replaced.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A universal joint with an end anti-slip function, comprising: A transmission component (1) and a connecting component (2), wherein the transmission component (1) is fixedly mounted on one end of the connecting component (2); The transmission component (1) comprises a transmission shaft (11) and a clamping block (12), wherein the clamping block (12) is evenly arranged on the outer surface of one end of the transmission shaft (11), the outer surface of the clamping block (12) is threadedly connected with a fastening screw (15), a first plug hole (14) is provided at the center of one end surface of the transmission shaft (11), a clamping tooth (13) is provided on the outer surface of one end of the transmission shaft (11) and between the clamping blocks (12), an annular limiting groove (17) is provided on the outer surface of the other end of the transmission shaft (11), a retaining spring (18) is clamped inside the annular limiting groove (17), and a transmission tooth groove (16) is provided on the end of the outer surface of the transmission shaft (11) away from the clamping block (12); The bottom of the annular limit groove (17) is set at an oblique angle of 105 degrees, and the width of the annular limit groove (17) is 2.2 mm; the diameter of the retaining spring (18) is 1.8 mm, and the sagging amount of the bottom end of the retaining spring (18) inside the annular limit groove (17) is 15.46 mm.

2. A universal joint with end anti-dropout function according to claim 1, characterized in that: The connecting component (2) comprises a driving shaft (25) and a spherical shell (26); one end of the driving shaft (25) is movably clamped inside one end of the spherical shell (26); a rubber sleeve (24) is arranged between the driving shaft (25) and the spherical shell (26); threaded holes (21) are evenly arranged on the outer surface of one end of the spherical shell (26); a second plug hole (23) is arranged on one end surface of the spherical shell (26); and a clamping groove (22) is arranged inside the second plug hole (23).

3. A universal joint with end anti-slip function according to claim 2, characterized in that: A limiting column is arranged inside the second plug-in hole (23), and the transmission shaft (11) is plugged into the limiting column through a first plug-in hole (14) at one end.

4. A universal joint with end anti-slip function according to claim 3, characterized in that: The transmission shaft (11) is clamped to the outer surface of one end of the spherical shell (26) via a clamping block (12).

5. A universal joint with end anti-slip function according to claim 4, characterized in that: The fastening screw (15) passes through the clamping block (12) and is threadedly connected to the threaded hole (21).

6. A universal joint with end anti-dropout function according to claim 5, characterized in that: The transmission shaft (11) is engaged with the engaging groove (22) via engaging teeth (13) on the outer surface of one end.

7. A universal joint with end anti-dropout function according to claim 6, characterized in that: One end of the transmission shaft (11) is plugged into one end surface of the spherical shell (26) through a second plug-in hole (23).

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