Anti-deviation cross shaft universal joint shaft sleeve
By designing a rolling mechanism on the shaft wall and shaft end between the cross shaft and the universal joint bushing, wear is reduced by utilizing rolling and elastic connection, the problem of cross shaft misalignment is solved, and a more stable transmission effect is achieved.
Patent Information
- Application Number
- CN202520843137.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-29
AI Technical Summary
In existing technology, wear between the cross shaft and the universal joint bushing causes misalignment, affecting the transmission effect.
The shaft wall rolling mechanism and shaft end rolling mechanism are designed, including components such as a movable ring, inner support ring, needle roller, dust cover, rubber ring, support block, cylinder, inner support rod, sliding block and elastic element, which reduce wear through rolling and elastic connection.
It effectively reduces wear between the cross shaft and the universal joint bushing, prevents misalignment, extends service life, and ensures the stability of transmission operation.
Smart Images
Figure CN223854703U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to universal joint frock technical field, specifically, relate to a kind of anti-deviation cross shaft universal joint shaft sleeve. BACKGROUND
[0002] Universal joint is also called universal joint, is the core mechanical component in transmission system and realizes variable angle power transmission, its function is similar to human joint, allows transmission shaft to continuously transmit power under the condition of angle change. It is composed of cross shaft and other components, two shafts are connected by hinged design, can swing around cross shaft center to adapt to turning, suspension bounce and other working conditions.
[0003] Cross shaft is rotatably connected with universal joint shaft sleeve, and the rotating connection is assembled by pin rod and other components, after a period of use, wear occurs at pin rod and other components, which further causes the cross shaft to deviate, affecting the transmission effect. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of anti-deviation cross shaft universal joint shaft sleeve, solve the problem that wear is greater and easy to cause cross shaft to deviate in prior art by assembling with pin rod and other components.
[0005] The utility model provides the following technical scheme: a kind of anti-deviation cross shaft universal joint shaft sleeve, comprising:
[0006] Universal joint shaft sleeve and cross shaft, the side surface of the universal joint shaft sleeve is fixedly connected with flange;
[0007] Shaft wall rolling mechanism, the shaft wall rolling mechanism is arranged on universal joint shaft sleeve, and the shaft wall rolling mechanism is used to reduce the wear of shaft body outer wall;
[0008] Shaft end rolling mechanism, the shaft end rolling mechanism is arranged at the end of cross shaft, and the shaft end rolling mechanism is used to reduce the wear of shaft body end.
[0009] As the preferred technical scheme, the shaft wall rolling mechanism includes movable ring, the universal joint shaft sleeve is provided with recess, the inner wall of the recess is detachably connected with movable ring, and the inner wall of the movable ring is fixedly connected with inner support ring.
[0010] Through the above technical scheme, the damaged one-way roller is replaced by the design of movable ring.
[0011] As the preferred technical scheme, the inner wall of the inner support ring is rotatably connected with one-way roller, the recess is movably connected with plug-in ring, and the side, away from the universal joint shaft sleeve of the plug-in ring, is fixedly connected with dust cover.
[0012] Through the technical scheme, the inner cavity of the groove can be protected through the design of the dust cover.
[0013] As the preferred technical scheme, the outer wall of the plug-in ring is fixedly sleeved with a rubber ring, and the outer wall of the rubber ring is movably connected with the inner wall of the groove.
[0014] Through the technical scheme, the stability of the plug-in ring inserted into the groove is improved through the design of the rubber ring.
[0015] As the preferred technical scheme, the shaft end rolling mechanism comprises a support block, the support block is fixedly installed at the end of the cross shaft, a second rolling pin is rotatably connected to the side of the support block away from the cross shaft, and a cylinder is fixedly installed on the inner wall of the support block.
[0016] Through the technical scheme, the wear between the end of the cross shaft and the universal joint shaft sleeve can be reduced through the design of the second rolling pin.
[0017] As the preferred technical scheme, an inner support rod is fixedly installed on the inner wall of the cylinder, a sliding block is slidably connected to the outer wall of the inner support rod, an elastic member is fixedly installed on the inner wall of the cylinder, and the end of the elastic member away from the inner wall of the cylinder is fixedly connected with the outer wall of the sliding block.
[0018] Through the technical scheme, the telescopic shaft can be kept in an extended state through the design of the elastic member.
[0019] As the preferred technical scheme, the side of the sliding block away from the elastic member is fixedly connected with a telescopic shaft, the end of the telescopic shaft away from the sliding block extends to the outside of the cylinder, and a ventilation hole is formed in the end of the cylinder.
[0020] Through the technical scheme, the gas inside the cylinder can flow through the ventilation hole when the sliding block moves.
[0021] Compared with the prior art, the utility model discloses the following beneficial effects:
[0022] Through the design of the shaft wall rolling mechanism, the telescopic shaft rotates in the process of the cross shaft rotating, the telescopic shaft rotates on the inner side of the first rolling pin, and the first rolling pin can roll, so that the wear between the outer wall of the shaft body and the universal joint shaft sleeve as a whole can be reduced. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1This is a perspective view of the present utility model;
[0024] Figure 2 This is a partially cutaway structural diagram of the universal joint bushing of this utility model;
[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0026] Figure 4 This is a schematic diagram of the structure of the support block of this utility model separated from the cross axis;
[0027] Figure 5 This is a partial cross-sectional structural diagram of the cylindrical part of this utility model.
[0028] In the diagram: 1. Universal joint bushing; 11. Cross shaft; 12. Flange; 2. Shaft wall rolling mechanism; 21. Groove; 22. Moving ring; 23. Inner support ring; 24. No. 1 needle roller; 25. Insertion ring; 26. Dust cover; 27. Rubber ring; 3. Shaft end rolling mechanism; 31. Support block; 32. No. 2 needle roller; 33. Cylinder; 34. Inner support rod; 35. Sliding block; 36. Telescopic shaft; 37. Elastic element; 38. Vent hole. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0030] like Figures 1-5 As shown, this utility model provides a technical solution: a cross-shaft universal joint bushing with anti-offset function, comprising:
[0031] Universal joint bushing 1 and cross shaft 11, with flange 12 fixedly connected to the side of universal joint bushing 1;
[0032] The shaft wall rolling mechanism 2 is installed on the universal joint bushing 1 and is used to reduce the wear of the outer wall of the shaft.
[0033] The shaft end rolling mechanism 3 is located at the end of the cross shaft 11 and is used to reduce wear at the end of the shaft.
[0034] As one implementation method in this embodiment, such as Figures 1-3As shown in the figure, the shaft wall rolling mechanism 2 comprises a movable ring 22, a groove 21 is formed on the universal joint shaft sleeve 1, the inner wall of the groove 21 is detachably connected with the movable ring 22, the inner wall of the movable ring 22 is fixedly installed with an inner support ring 23, the inner wall of the inner support ring 23 is rotatably connected with a first rolling needle 24, the groove 21 is movably inserted with an insertion ring 25, the side of the insertion ring 25 away from the universal joint shaft sleeve 1 is fixedly connected with a dust cover 26, the outer wall of the insertion ring 25 is fixedly sleeved with a rubber ring 27, the outer wall of the rubber ring 27 is movably connected with the inner wall of the groove 21, the insertion ring 25 is inserted at the end of the groove 21, the dust cover 26 can protect the inner cavity of the groove 21 from dust, the design of the rubber ring 27 can produce elastic deformation, improve the stability of the insertion ring 25 inserted in the groove 21, the movable ring 22 is installed in the inner cavity of the groove 21 through bolts, so that the movable ring 22 can be disassembled, and then the damaged first rolling needle 24 can be replaced as a whole on the universal joint shaft sleeve 1, the outer wall of the telescopic shaft 36 is movably connected with the outer wall of the first rolling needle 24, the cross shaft 11 rotates to drive the telescopic shaft 36 to rotate, the telescopic shaft 36 rotates on the inner side of the first rolling needle 24, and the first rolling needle 24 can roll, so that the wear between the outer wall of the shaft body and the universal joint shaft sleeve 1 as a whole can be reduced.
[0035] As an embodiment in the present embodiment, as shown in Figure 4 、 Figure 5 As shown in the figure, the shaft end rolling mechanism 3 comprises a support block 31, the support block 31 is fixedly installed at the end of the cross shaft 11, the side of the support block 31 away from the cross shaft 11 is rotatably connected with a second rolling needle 32, the inner wall of the support block 31 is fixedly installed with a cylinder 33, the inner wall of the cylinder 33 is fixedly installed with an inner support rod 34, the outer wall of the inner support rod 34 is slidably connected with a sliding block 35, the inner wall of the cylinder 33 is fixedly installed with an elastic element 37, the end of the elastic element 37 away from the inner wall of the cylinder 33 is fixedly connected with the outer wall of the sliding block 35, the side of the sliding block 35 away from the elastic element 37 is fixedly connected with a telescopic shaft 36, the end of the telescopic shaft 36 away from the sliding block 35 extends to the outside of the cylinder 33, the end of the cylinder 33 is provided with a ventilation hole 38, the outer wall of the second rolling needle 32 is movably connected with the inner surface of the universal joint shaft sleeve 1, in the process of rotating the cross shaft 11, the second rolling needle 32 rolls on the inner surface of the universal joint shaft sleeve 1, reducing the wear between the end of the cross shaft 11 and the universal joint shaft sleeve 1, pressing the telescopic shaft 36 to the cylinder 33, the sliding block 35 can slide on the outer wall of the inner support rod 34, and the elastic element 37 is compressed at the same time, so that the cross shaft 11 can be disassembled on the universal joint shaft sleeve 1, after loosening the telescopic shaft 36, the telescopic shaft 36 can be reset by the reset elastic force of the elastic element 37, the outer wall of the sliding block 35 and the inner wall of the cylinder 33 have a gap, and the design of the ventilation hole 38 facilitates the flow of gas in the cylinder 33 when the telescopic shaft 36 moves.
[0036] Working principle: when using, the structure is connected in the transmission system from the flange 12, the cross shaft 11 rotates in the process of driving the telescopic shaft 36 to rotate, the telescopic shaft 36 rotates in the inside of the first needle 24, the first needle 24 can roll, thereby reducing the wear between the outer wall of the shaft body and the universal joint shaft sleeve 1, in the process of rotating the cross shaft 11, the second needle 32 rolls on the inner surface of the universal joint shaft sleeve 1, reducing the wear between the end of the cross shaft 11 and the universal joint shaft sleeve 1, if the universal joint shaft sleeve 1 and the cross shaft 11 need to be disassembled and maintained, the telescopic shaft 36 is pressed to the cylinder 33, so that the telescopic shaft 36 is contracted to the inside of the cylinder 33, then the universal joint shaft sleeve 1 and the cross shaft 11 can be disassembled.
[0037] The above examples are only used to illustrate the technical solutions of the present application, not to limit them.
Claims
1. A cross-shaped universal joint bushing with anti-offset feature, characterized in that, Include: Universal joint shaft sleeve (1) and cross shaft (11), the side of the universal joint shaft sleeve (1) is fixedly connected with flange (12); Shaft wall rolling mechanism (2), the shaft wall rolling mechanism (2) is arranged on the universal joint shaft sleeve (1), the shaft wall rolling mechanism (2) is used for reducing the wear of the outer wall of the shaft body; Shaft end rolling mechanism (3), the shaft end rolling mechanism (3) is arranged at the end of the cross shaft (11), the shaft end rolling mechanism (3) is used for reducing the wear of the end of the shaft body.
2. An anti- deflection cross axle universal joint bushing according to claim 1, wherein: The shaft wall rolling mechanism (2) includes a movable ring (22), the universal joint shaft sleeve (1) is provided with a groove (21), the inner wall of the groove (21) is detachably connected with the movable ring (22), and the inner wall of the movable ring (22) is fixedly connected with the inner support ring (23).
3. An anti- deflection cross axle universal joint bushing according to claim 2, characterized in that: The inner wall of the inner support ring (23) is rotatably connected with a first rolling needle (24), the groove (21) is movably inserted with an insertion ring (25), and the side, away from the universal joint shaft sleeve (1), of the insertion ring (25) is fixedly connected with a dust cover (26).
4. A misalignment-proof cross axle universal joint bushing according to claim 3, characterized in that: The outer wall of the insertion ring (25) is fixedly sleeved with a rubber ring (27), and the outer wall of the rubber ring (27) is movably connected with the inner wall of the groove (21).
5. The anti- deflection cross axle universal joint boot of claim 1, wherein: The shaft end rolling mechanism (3) includes a support block (31), the support block (31) is fixedly installed at the end of the cross shaft (11), the side, away from the cross shaft (11), of the support block (31) is rotatably connected with a second rolling needle (32), and the inner wall of the support block (31) is fixedly installed with a cylinder (33).
6. An anti- deflection cross axle universal joint bushing according to claim 5, wherein: The inner wall of the cylinder (33) is fixedly installed with an inner support rod (34), the outer wall of the inner support rod (34) is slidably connected with a sliding block (35), the inner wall of the cylinder (33) is fixedly installed with an elastic member (37), and the end, away from the inner wall of the cylinder (33), of the elastic member (37) is fixedly connected with the outer wall of the sliding block (35).
7. An anti- deflection cross axle universal joint bushing according to claim 6, characterized in that: The side, away from the elastic member (37), of the sliding block (35) is fixedly connected with a telescopic shaft (36), one end of the telescopic shaft (36), away from the sliding block (35), extends to the outside of the cylinder (33), and the end of the cylinder (33) is provided with a ventilation hole (38).