A cross axle assembly structure with sealed lubrication protection assembly

Abstract

The utility model relates to cross axle technical field, concretely is a kind of cross axle assembly structure with sealed lubrication protection component, it includes: cross axle piece, protective cover, the four axle neck end of cross axle piece is provided with shaft sleeve, oil storage cavity is set in cross axle piece, oil inlet is communicated oil storage cavity and is set in the end wall of cross axle piece, protective cover is set at oil inlet by connecting assembly;Sealing rubber plug is inserted with oil inlet and realizes sealing and blocks oil inlet, until the end of protective cover and cross axle piece end wall clamping after, rotate two arc clamping plates, so that first magnetic block and second magnetic block attract each other, the spring reset of compression pushes slider to move to the end of sliding slot, first magnetic block and second magnetic block are framed in limiting sleeve at this time, the position of fixed arc clamping plate, elastic tab reset and limiting sleeve frame other end side wall clamping further limit limiting sleeve frame movement;Simple operation, protective cover dismounting does not need to help auxiliary tool, the oiling of the oil storage cavity of cross axle piece is convenient.

Description

Technical Field

[0001] This utility model relates to the field of cross shaft technology, specifically a cross shaft assembly structure with sealing, lubrication and protection components. Background Technology

[0002] Chinese patent document CN217081166U discloses a cross-shaped assembly for improved lifespan, comprising a connecting seat and a self-lubricating component. The connecting seat has a connecting shaft arranged around its outer perimeter, and a rotating sleeve is mounted on the outer surface of the connecting shaft. The inner surface of the rotating sleeve is provided with balls, and a limiting plate is provided on the outer surface of the rotating sleeve. A mating seat is mounted on the top outer side of the rotating sleeve. This improved lifespan cross-shaped assembly allows a threaded shaft to be inserted into the threaded hole at the outer end of the connecting hole. Tightening the threaded shaft allows it to be screwed into the threaded hole, and a protective cover plate is fitted against the outer surface of the connecting component. The auxiliary fixation of the threaded shaft further enhances the stability of the rotating sleeve. Furthermore, when the protective cover plate covers the outer surface of the connecting component, it conceals the connecting hole, preventing the rotating sleeve from being exposed and damaged, thus extending the service life of the cross-shaped assembly.

[0003] However, in the above solution, the cross shaft is equipped with an oil reservoir and oil supply line so that the cross shaft can lubricate the bushings on its four journals during use. In order to achieve the sealing protection of the oil filling port of the cross shaft oil reservoir, the protective cover is screwed on at the oil filling port. The operation requires the use of auxiliary tools. When performing the oil filling operation, the auxiliary tool is affected by the structure of the cross shaft connecting parts, and the working space of the auxiliary tool is restricted, so that the protective cover can only be turned by a small angle each time, which is inconvenient for the removal and installation of the protective cover. Improvement and optimization are needed. Utility Model Content

[0004] The purpose of this invention is to provide a cross shaft assembly structure with sealing, lubrication and protection components to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cross shaft assembly structure with a sealing lubrication and protection component, comprising: a cross shaft component and a protective cover; bushings are provided at the four journal ends of the cross shaft component; an oil storage cavity is provided inside the cross shaft component; four oil supply pipes are provided on the peripheral wall of the oil storage cavity leading to the bushing connection; an oil injection port is provided on the end wall of the cross shaft component to connect to the oil storage cavity; and the protective cover is provided at the oil injection port through a connecting component.

[0006] Preferably, the connecting component includes a protrusion, an arc-shaped retaining plate, a first protrusion, a limiting sleeve, and a second protrusion. A sealing rubber plug is connected to the bottom end of the protective cover, and the sealing rubber plug is inserted into the oil filling port. The bottom end of the protective cover is engaged with the end wall of the cross shaft component, and a retaining ring groove is provided on the peripheral wall of the protective cover.

[0007] Preferably, the protrusion connection is disposed on the end wall of the cross shaft component, and a straight groove is provided on the side wall of the protrusion. Two arc-shaped clamping plates are symmetrically rotated in the straight groove. A ramp is connected to the side wall of the arc-shaped clamping plate. A first magnetic block is connected to the end of one arc-shaped clamping plate, and a second magnetic block is connected to the end of the other arc-shaped clamping plate.

[0008] Preferably, the first magnetic block and the second magnetic block attract each other, the arc-shaped card plate is snapped into the card ring groove, the side wall of the cross shaft is connected to a first boss, the end wall of the first boss is provided with a sliding groove, and the side wall of the sliding groove is connected to a guide post.

[0009] Preferably, the guide post is sleeved with a spring, and the guide post is movably sleeved with a slider. The slider is movably engaged in a groove in the end wall of the first boss, and the slider is engaged with the spring. A limit frame is provided on the side wall of the slider.

[0010] Preferably, the limiting sleeve is sleeved with the first magnetic block and the second magnetic block, a second boss is connected to the side wall of the cross shaft, and an elastic lever is connected to the side wall of the second boss, the elastic lever being engaged with the limiting sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The oil inlet is sealed by inserting a sealing rubber plug into it until the bottom of the protective cover engages with the end wall of the cross shaft. Then, the two arc-shaped locking plates are rotated, causing the first and second magnetic blocks to attract each other. The compressed spring returns to its original position and pushes the slider to the end of the groove. At this point, the limiting sleeve engages with the first and second magnetic blocks, fixing the position of the arc-shaped locking plates. The elastic lever returns to its original position and engages with the other side wall of the limiting sleeve to further limit the movement of the limiting sleeve. The operation is simple, and no auxiliary tools are needed when disassembling or assembling the protective cover, making it convenient to fill the oil reservoir of the cross shaft with oil. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a half-sectional view of the structural connection of this utility model; Figure 3 This utility model Figure 1 A magnified view of a portion of the image; Figure 4 This is an exploded view of the structural connection of this utility model.

[0013] In the diagram: 1. Cross shaft, 2. Bushing, 3. Oil reservoir, 4. Oil supply line, 5. Oil inlet, 6. Protective cover, 7. Sealing rubber plug, 8. Snap ring groove, 9. Protrusion, 10. Arc-shaped retaining plate, 11. Slope block, 12. First magnetic block, 13. Second magnetic block, 14. First boss, 15. Guide post, 16. Spring, 17. Slider, 18. Limiting sleeve, 19. Second boss, 20. Elastic lever. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: a cross shaft assembly structure with a sealing lubrication protection component, comprising: a cross shaft 1 and a protective cover 6. The four journal ends of the cross shaft 1 are provided with bushings 2. An oil storage cavity 3 is provided inside the cross shaft 1. Four oil supply pipes 4 are provided on the peripheral wall of the oil storage cavity 3, leading to the connection of the bushings 2. An oil injection port 5 is opened on the end wall of the cross shaft 1 to connect to the oil storage cavity 3. The protective cover 6 is set at the oil injection port 5 through a connecting component.

[0016] The oil storage chamber 3 is used to store lubricating oil. The oil storage chamber 3 can input the lubricating oil into the oil supply pipeline 4. The lubricating oil in the oil supply pipeline 4 can enter the rotational connection between the cross shaft 1 and the bushing 2 due to the centrifugal force during the rotation of the cross shaft 1, and lubricate both of them.

[0017] The bottom end of the protective cover 6 is connected to a sealing rubber plug 7, which is inserted into the oil inlet 5. The bottom end of the protective cover 6 is engaged with the end wall of the cross shaft 1, and a retaining ring groove 8 is provided on the periphery of the protective cover 6.

[0018] The sealing rubber plug 7 is inserted into the oil inlet 5 for positioning and installation of the protective cover 6, and at the same time achieves sealing protection of the oil inlet 5 to prevent the lubricating oil in the oil storage chamber 3 from leaking from the oil inlet 5.

[0019] The protrusion 9 in the connecting assembly is connected to the end wall of the cross shaft 1. A straight groove is formed on the side wall of the protrusion 9, and two arc-shaped retaining plates 10 are symmetrically rotatably arranged in the straight groove. A ramp 11 is connected to the side wall of the arc-shaped retaining plate 10. A first magnetic block 12 is connected to the end of one arc-shaped retaining plate 10, and a second magnetic block 13 is connected to the end of the other arc-shaped retaining plate 10. The first magnetic block 12 and the second magnetic block 13 attract each other. The arc-shaped retaining plate 10 is engaged in the retaining ring groove 8. A first boss 14 is connected to the side wall of the cross shaft 1. A sliding groove is formed on the end wall of the first boss 14, and a guide post 15 is connected to the side wall of the sliding groove.

[0020] The arc-shaped card plate 10 is snapped into the card ring groove 8 to fix the position of the protective cover 6. The first magnetic block 12 and the second magnetic block 13 attract each other to fix the relative position of the two arc-shaped card plates 10. The arc-shaped card plate 10 is provided with a ramp 11 to facilitate the separation of the two arc-shaped card plates 10 during disassembly.

[0021] The guide post 15 is sleeved with a spring 16, and the guide post 15 is movably sleeved with a slider 17. The slider 17 is movably engaged in the groove of the end wall of the first boss 14. The slider 17 is engaged with the spring 16, and the side wall of the slider 17 is connected with a limit sleeve 18.

[0022] When the spring 16 is in a compressed state, both ends of the spring 16 are engaged with the slide groove sidewall of the end wall of the first boss 14 and the slider 17, respectively. When the spring 16 is reset, it pushes the slider 17 to move in the slide groove of the end wall of the first boss 14. The slider 17 is movably engaged with the guide post 15 to prevent the slider 17 from disengaging.

[0023] The limiting sleeve 18 is sleeved with the first magnetic block 12 and the second magnetic block 13. A second boss 19 is connected to the side wall of the cross shaft 1. An elastic lever 20 is connected to the side wall of the second boss 19. The elastic lever 20 is engaged with the limiting sleeve 18.

[0024] After the first magnetic block 12 and the second magnetic block 13 are attracted to each other, the limiting sleeve 18 is fitted onto the first magnetic block 12 and the second magnetic block 13, thereby fixing the position of the first magnetic block 12 and the second magnetic block 13. The direction of the elastic lever 20 is towards the end of the limiting sleeve 18. The engagement between the elastic lever 20 and the limiting sleeve 18 further ensures the stability of the connection between the limiting sleeve 18 and the first magnetic block 12 and the second magnetic block 13.

[0025] Working principle: After lubricating oil is injected into the oil reservoir 3 through the oil inlet 5, the sealing rubber plug 7 is inserted into the oil inlet 5 to seal it until the bottom end of the protective cover 6 is engaged with the end wall of the cross shaft 1. Then, the two arc-shaped clamping plates 10 are rotated, causing the first magnetic block 12 and the second magnetic block 13 to attract each other and fix the relative position of the two arc-shaped clamping plates 10. The elastic lever 20 is then moved to the right side of the end of the limiting sleeve 18 until the elastic lever 20 separates from the limiting sleeve 18. After that, the compressed spring 16 returns to its original position and pushes the slide... Block 17 moves within the groove on the end wall of the first boss 14 until the slider 17 moves to the end of the groove. At this time, the limiting sleeve 18 engages with the first magnetic block 12 and the second magnetic block 13, fixing the position of the arc-shaped card plate 10. The elastic lever 20 is released, and the elastic lever 20 resets so that its side wall contacts the other side wall of the limiting sleeve 18 to achieve limiting. The limiting sleeve 18 is further limited to move, completing the positioning and installation of the protective cover 6. The operation is simple, and the protective cover 6 can be disassembled and assembled without the aid of auxiliary tools, which facilitates the filling of the oil storage chamber 3 of the cross shaft 1 with oil.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cross shaft assembly structure with sealing, lubrication, and protection components, comprising: A cross shaft (1) and a protective cover (6) are provided. The four journal ends of the cross shaft (1) are provided with bushings (2). An oil storage chamber (3) is provided inside the cross shaft (1). Four oil pipelines (4) are provided on the periphery of the oil storage chamber (3) leading to the connection of the bushings (2). The feature is that: an oil inlet (5) is provided on the end wall of the cross shaft (1) to connect the oil storage chamber (3), and the protective cover (6) is set at the oil inlet (5) through a connecting component; The connecting assembly includes a protrusion (9), an arc-shaped clamping plate (10), a first protrusion (14), a limiting sleeve (18), and a second protrusion (19). A sealing rubber plug (7) is connected to the bottom end of the protective cover (6). The sealing rubber plug (7) is inserted into the oil inlet (5). The bottom end of the protective cover (6) is clamped to the end wall of the cross shaft (1). A retaining ring groove (8) is opened on the peripheral wall of the protective cover (6). The protrusion (9) is connected to the end wall of the cross shaft (1). A straight groove is provided on the side wall of the protrusion (9). Two arc-shaped clamping plates (10) are symmetrically rotated in the straight groove. A ramp (11) is connected to the side wall of the arc-shaped clamping plate (10). A first magnetic block (12) is connected to the end of one arc-shaped clamping plate (10), and a second magnetic block (13) is connected to the end of the other arc-shaped clamping plate (10).

2. The cross shaft assembly structure with sealing, lubrication, and protection components according to claim 1, characterized in that: The first magnetic block (12) and the second magnetic block (13) attract each other. The arc-shaped card plate (10) is snapped into the card ring groove (8). A first boss (14) is connected to the side wall of the cross shaft (1). A sliding groove is opened on the end wall of the first boss (14). A guide post (15) is connected to the side wall of the sliding groove.

3. The cross shaft assembly structure with sealing, lubrication, and protection components according to claim 2, characterized in that: The guide post (15) is sleeved with a spring (16), and the guide post (15) is movably sleeved with a slider (17). The slider (17) is movably snapped into the groove of the end wall of the first boss (14). The slider (17) is snapped into the spring (16), and the side wall of the slider (17) is connected with a limit sleeve (18).

4. The cross shaft assembly structure with sealing, lubrication, and protection components according to claim 3, characterized in that: The limiting sleeve (18) is sleeved with the first magnetic block (12) and the second magnetic block (13). A second boss (19) is connected to the side wall of the cross shaft (1). An elastic paddle (20) is connected to the side wall of the second boss (19). The elastic paddle (20) is engaged with the limiting sleeve (18).

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