Wear-resistant universal joint fork

Abstract

The utility model relates to the technical field of universal joints, and discloses a wear-resistant universal joint fork which comprises a universal joint fork head, the top of the universal joint fork head is fixedly connected with a universal joint fork lug, the inner wall of the universal joint fork lug is provided with a limiting groove, the inner wall of the universal joint fork lug is provided with a rotating groove, the inner wall of the limiting groove is rotatably connected with a rotating shaft, and the inner wall of the rotating shaft is provided with a rotating shaft. A steel ball limiting shaft is fixedly connected to the right side of the outer wall of the rotating shaft, a limiting shaft is rotatably connected to the right side of the outer wall of the rotating shaft, steel balls are rotatably connected to the outer wall of the limiting shaft, the steel balls are limited by the steel ball limiting shaft and the limiting shaft, and lubricating holes are formed in the inner wall of the steel ball limiting shaft. When the cardan shaft is rotated, the cardan shaft rotates the round limiting block, the cardan shaft rotates the limiting shaft, the limiting shaft rotates the steel ball, the steel ball rotates in a limited mode through the steel ball limiting shaft and the limiting shaft, the limiting shaft rotates on the outer wall of the rotating shaft, and therefore rotation of the cardan shaft is achieved, friction force is reduced, and the service life of a used product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joints, in particular to a wear-resistant universal joint fork. Background Art

[0002] A universal joint is a component that realizes variable-angle power transmission and is used in positions where the direction of the transmission axis needs to be changed. It is a joint component of the universal transmission device of the automobile drive system. In actual use, it is generally used in conjunction with a universal joint fork. It is a common transmission structure. The universal joint fork has the following disadvantages when in use: 1. The above-mentioned universal joint fork does not have a wear-resistant mechanism. After long-term use, the connection part of the universal joint fork is prone to wear, affecting the transmission quality and efficiency; 2. The traditional universal joint fork is an integrated fixed structure. When its internal connection part is worn, it must be replaced as a whole, which increases the cost of use and maintenance.

[0003] The purpose of the utility model is to change the rotation of the previous cross transmission shaft. When the rotating shaft rotates, each component will move with the rotation of the transmission shaft and generate friction. Long-term friction will easily lead to larger gaps between the components. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model provides a wear-resistant universal joint fork.

[0005] The utility model is implemented by the following technical scheme: a wear-resistant universal joint fork, including a universal joint fork head, a universal joint fork ear fixedly connected to the top of the universal joint fork head, a limiting groove is provided on the inner wall of the universal joint fork ear, a rotating groove is provided on the inner wall of the universal joint fork ear, and the inner wall of the limiting groove is rotatably connected to a rotating shaft.

[0006] As a further improvement of the above scheme, a steel ball limiting shaft is fixedly connected to the right side of the outer wall of the rotating shaft, the right side of the outer wall of the rotating shaft is rotatably connected to the limiting shaft, the outer wall of the limiting shaft is rotatably connected to a steel ball, and the steel ball is limited by the steel ball limiting shaft and the limiting shaft.

[0007] As a further improvement of the above solution, a lubrication hole is opened on the inner wall of the steel ball limit shaft, a circular limit block is fixedly connected to the right side of the outer wall of the limit shaft, and a universal shaft is fixedly connected to the right side of the outer wall of the circular limit block.

[0008] Through the above technical solution, when the universal joint is rotated, the universal joint rotates the circular limit block, the universal joint rotates the limit shaft, the limit shaft rotates the steel ball, the steel ball is limitedly rotated through the steel ball limit shaft and the limit shaft, and the limit shaft rotates on the outer wall of the rotating shaft, thereby realizing the rotation of the universal joint, reducing friction, and increasing the life of the product.

[0009] As a further improvement of the above scheme, there are two limit grooves, and the two limit grooves are symmetrically arranged with respect to the center of the universal joint fork; there are two rotation grooves, and the two rotation grooves are symmetrically arranged with respect to the center of the universal joint fork; there are two rotation shafts, and the two rotation shafts are symmetrically arranged with respect to the center of the universal joint fork.

[0010] As a further improvement of the above scheme, there are two steel ball limiting shafts, which are symmetrically arranged around the center of the universal joint fork; there are several steel balls, which are symmetrically arranged around the center of the rotating shaft; there are several lubrication holes, which are symmetrically arranged around the center of the steel ball limiting shaft.

[0011] As a further improvement of the above scheme, a lubricating oil injection hole is opened at the top of the inner wall of the universal joint fork ear, and the inner wall of the lubricating oil injection hole is slidably connected to a dust block, the bottom of the dust block is fixedly connected to a limiting block, the bottom of the limiting block is fixedly connected to a spring, the inner wall of the lubricating oil injection hole is fixedly connected to a spring limiting block, and the spring is fixedly connected to the outer wall of the spring limiting block.

[0012] As a further improvement of the above scheme, there are two lubricating oil injection holes, which are symmetrically arranged with respect to the center of the universal joint fork head; there are two dust blocks, which are symmetrically arranged with respect to the center of the universal joint fork head; there are two limit blocks, which are symmetrically arranged with respect to the center of the universal joint fork head.

[0013] Through the above technical solution, when the product needs lubrication after being used for a long time, an oiling needle can be used to squeeze the dust block inward, the dust block squeezes the limit block, the limit block squeezes the spring, and the spring is limited by the spring limit block. When the dust block moves downward, a gap will be generated, and then lubricating oil is injected. The lubricating oil will flow along the lubricating oil injection hole into the lubrication hole opened on the steel ball limit shaft, and then lubricate the rotating shaft and steel ball, reducing friction and increasing the service life of the product.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model realizes the rotation of the universal shaft by rotating the circular limit block of the universal shaft, the universal shaft rotates the limit shaft, the limit shaft rotates the steel ball, the steel ball is limitedly rotated by the steel ball limit shaft and the limit shaft, and the limit shaft rotates on the outer wall of the rotating shaft, thereby realizing the rotation of the universal shaft, reducing friction and increasing the service life of the product.

[0016] The utility model can use an oiling needle to squeeze the dust block inward when the product needs lubrication after being used for a long time. The dust block squeezes the limit block, and the limit block squeezes the spring. The spring is limited by the spring limit block. A gap will be generated after the dust block moves downward, and then lubricating oil is injected. The lubricating oil will flow along the lubricating oil injection hole into the lubrication hole opened on the steel ball limit shaft, and then lubricate the rotating shaft and the steel ball, thereby reducing friction and increasing the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the universal joint fork ear of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a circular limit block of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the universal joint shaft of the present invention;

[0022] Figure 6 For this utility model Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0023] Description of main symbols:

[0024] 1. Universal joint fork; 2. Universal joint fork ear; 3. Limit groove; 4. Rotation groove; 5. Rotation shaft; 6. Steel ball limit shaft; 7. Limit shaft; 8. Steel ball; 9. Lubrication hole; 10. Circular limit block; 11. Universal joint; 12. Lubricating oil injection hole; 13. Dust block; 14. Limit block; 15. Spring; 16. Spring limit block. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0026] Please combine Figure 1-6 A wear-resistant universal joint fork in this embodiment includes a universal joint fork head 1, a universal joint fork ear 2 is fixedly connected to the top of the universal joint fork head 1, a limiting groove 3 is provided on the inner wall of the universal joint fork ear 2, a rotating groove 4 is provided on the inner wall of the universal joint fork ear 2, and a rotating shaft 5 is rotatably connected to the inner wall of the limiting groove 3.

[0027] A steel ball limiting shaft 6 is fixedly connected to the right side of the outer wall of the rotating shaft 5, and a limiting shaft 7 is rotatably connected to the right side of the outer wall of the rotating shaft 5. A steel ball 8 is rotatably connected to the outer wall of the limiting shaft 7, and the steel ball 8 is limited by the steel ball limiting shaft 6 and the limiting shaft 7.

[0028] A lubrication hole 9 is provided on the inner wall of the steel ball limiting shaft 6 , a circular limiting block 10 is fixedly connected to the right side of the outer wall of the limiting shaft 7 , and a universal shaft 11 is fixedly connected to the right side of the outer wall of the circular limiting block 10 .

[0029] There are two limit slots 3, which are symmetrically arranged around the center of the universal joint fork 1; there are two rotation slots 4, which are symmetrically arranged around the center of the universal joint fork 1; there are two rotation shafts 5, which are symmetrically arranged around the center of the universal joint fork 1.

[0030] There are two steel ball limit shafts 6, which are symmetrically arranged around the center of the universal joint fork 1. There are several steel balls 8, which are symmetrically arranged around the center of the rotating shaft 5. There are several lubrication holes 9, which are symmetrically arranged around the center of the steel ball limit shafts 6.

[0031] A lubricating oil injection hole 12 is provided at the top of the inner wall of the universal joint fork ear 2, and a dust block 13 is slidably connected to the inner wall of the lubricating oil injection hole 12. A limiting block 14 is fixedly connected to the bottom of the dust block 13, and a spring 15 is fixedly connected to the bottom of the limiting block 14. A spring limiting block 16 is fixedly connected to the inner wall of the lubricating oil injection hole 12, and the spring 15 is fixedly connected to the outer wall of the spring limiting block 16.

[0032] There are two lubricating oil injection holes 12, which are symmetrically arranged with respect to the center of the universal joint fork 1; there are two dust blocks 13, which are symmetrically arranged with respect to the center of the universal joint fork 1; there are two limit blocks 14, which are symmetrically arranged with respect to the center of the universal joint fork 1.

[0033] The implementation principle of a wear-resistant universal joint fork in the embodiment of the present application is as follows: when the universal joint 11 is rotated, the universal joint 11 rotates the circular limit block 10, the universal joint 11 rotates the limit shaft 7, the limit shaft 7 rotates the steel ball 8, and the steel ball 8 is limited and rotated by the limit shaft 7 and the steel ball limit shaft 6. At the same time, the rotating shaft 5 and the steel ball limit shaft 6 can also be rotated to a certain extent by the limitation of the limit groove 3 and the rotating groove 4, thereby realizing the rotation of the universal joint 11, changing the previous cross rotation, reducing friction and increasing the life of the product. When the product needs lubrication after being used for a long time, an oiling needle can be used to squeeze the dust block 13 inward, and the dust block 13 squeezes the limit block 14. The limit block 14 squeezes the spring 15, and the spring 15 is limited by the spring limit block 16. When the dust block 13 moves downward, a gap will be generated, and then lubricating oil will be injected. The lubricating oil will flow along the lubricating oil injection hole 12 into the lubrication hole 9 opened in the steel ball limit shaft 6, and then lubricate the rotating shaft 5 and the steel ball 8, reducing friction, increasing the service life of the product, and making maintenance convenient. When the lubricating oil is injected, the reaction force of the spring 15 pushes the limit block 14 outward, and the limit block 14 pushes the dust block 13, so that the dust block 13 seals the lubricating oil injection hole 12 to prevent dust and impurities from entering the interior of the steel ball limit shaft 6, ensuring the protection of internal parts.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A wear-resistant universal joint fork, characterized in that: The invention comprises a universal joint fork head (1), wherein the top of the universal joint fork head (1) is fixedly connected to a universal joint fork ear (2), the inner wall of the universal joint fork ear (2) is provided with a limiting groove (3), the inner wall of the universal joint fork ear (2) is provided with a rotation groove (4), and the inner wall of the limiting groove (3) is rotatably connected to a rotation shaft (5).

2. A wear-resistant universal joint fork according to claim 1, characterized in that: The right side of the outer wall of the rotating shaft (5) is fixedly connected to a steel ball limiting shaft (6), the right side of the outer wall of the rotating shaft (5) is rotatably connected to a limiting shaft (7), the outer wall of the limiting shaft (7) is rotatably connected to a steel ball (8), and the steel ball (8) is limited by the steel ball limiting shaft (6) and the limiting shaft (7).

3. A wear-resistant universal joint fork according to claim 2, characterized in that: A lubrication hole (9) is provided on the inner wall of the steel ball limiting shaft (6), a circular limiting block (10) is fixedly connected to the right side of the outer wall of the limiting shaft (7), and a universal shaft (11) is fixedly connected to the right side of the outer wall of the circular limiting block (10).

4. The wear-resistant universal joint fork according to claim 1, characterized in that: There are two limit grooves (3), and the two limit grooves (3) are symmetrically arranged around the center of the universal joint fork (1); there are two rotation grooves (4), and the two rotation grooves (4) are symmetrically arranged around the center of the universal joint fork (1); there are two rotation shafts (5), and the two rotation shafts (5) are symmetrically arranged around the center of the universal joint fork (1).

5. The wear-resistant universal joint fork according to claim 3, characterized in that: There are two steel ball limiting shafts (6), and the two steel ball limiting shafts (6) are symmetrically arranged around the center of the universal joint fork (1). There are a plurality of steel balls (8), and the plurality of steel balls (8) are symmetrically arranged around the center of the rotating shaft (5). There are a plurality of lubrication holes (9), and the plurality of lubrication holes (9) are symmetrically arranged around the center of the steel ball limiting shaft (6).

6. The wear-resistant universal joint fork according to claim 1, characterized in that: A lubricating oil injection hole (12) is provided at the top of the inner wall of the universal joint fork ear (2); a dust block (13) is slidably connected to the inner wall of the lubricating oil injection hole (12); a limit block (14) is fixedly connected to the bottom of the dust block (13); a spring (15) is fixedly connected to the bottom of the limit block (14); a spring limit block (16) is fixedly connected to the inner wall of the lubricating oil injection hole (12); and the spring (15) is fixedly connected to the outer wall of the spring limit block (16).

7. The wear-resistant universal joint fork according to claim 6, characterized in that: There are two lubricating oil injection holes (12), and the two lubricating oil injection holes (12) are symmetrically arranged around the center of the universal joint fork (1); there are two dust blocks (13), and the two dust blocks (13) are symmetrically arranged around the center of the universal joint fork (1); there are two limit blocks (14), and the two limit blocks (14) are symmetrically arranged around the center of the universal joint fork (1).

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