Universal joint assembly capable of preventing sliding noise

Abstract

The utility model relates to the technical field of universal joint assemblies, in particular to a universal joint assembly capable of preventing sliding noise. According to the technical scheme, the universal joint comprises a universal joint, a spline shaft and a spline sleeve, one end of the spline shaft is located in the spline sleeve, a first spline groove is formed in the outer surface of the spline shaft, a second spline groove is formed in the inner wall of the spline sleeve, and the first spline groove is matched with the second spline groove; a plurality of linear grooves are formed in the inner wall of the second spline groove in an annular array at equal intervals, a lubricating oil nozzle is fixedly connected to the outer surface of the spline sleeve, a fixing ring is fixedly installed at the end, close to the spline shaft, of the spline sleeve, a sealing ring is arranged in the fixing ring, and the spline shaft penetrates through the sealing ring. In the use process of the universal joint assembly, the spline shaft can be fully lubricated when sliding in the spline sleeve, so that noise caused by sliding friction is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a universal joint assembly technical field, concretely is a universal joint assembly of preventing sliding noise. BACKGROUND

[0002] The universal joint assembly is a kind of mechanical device for connecting two axis not on the same straight line but need to transmit torque, the main function of universal joint assembly is to allow two axis to rotate at different angles and directions, and transmit torque, while allowing a certain degree of bending and angular deviation, it is widely used in automobile transmission system, industrial machinery and other various mechanical devices.

[0003] The universal joint assembly of the prior art is used in the process, the spacing between the two universal joint heads is controlled by the sliding of spline shaft inside spline sleeve to adapt to the change of transmission distance, but the spline shaft will produce noise due to sliding friction in the process of sliding inside spline sleeve, therefore, we propose a kind of universal joint assembly of preventing sliding noise. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of universal joint assembly of preventing sliding noise, with the advantage that spline shaft can be fully lubricated when sliding inside spline sleeve in the process of universal joint assembly use, to avoid noise due to sliding friction, solve the problem that the universal joint assembly of the prior art is used in the process, the spacing between the two universal joint heads is controlled by the sliding of spline shaft inside spline sleeve to adapt to the change of transmission distance, but the spline shaft will produce noise due to sliding friction in the process of sliding inside spline sleeve.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of universal joint assembly of preventing sliding noise, including universal joint head, spline shaft and spline sleeve, the spline shaft one end is located inside spline sleeve, the spline shaft outer surface is provided with first spline groove, the spline sleeve inner wall is provided with second spline groove, and first spline groove and second spline groove are adapted, the second spline groove inner wall is equidistantly provided with a plurality of straight grooves in annular array, the spline sleeve outer surface is fixedly connected with lubricating oil nozzle, the one end of spline sleeve close to spline shaft is fixedly installed with fixed ring, the fixed ring is internally provided with sealing ring, and spline shaft passes through sealing ring.

[0006] Preferably, the straight groove is provided with sponge strip inside, sponge strip can absorb lubricating oil inside spline sleeve, sponge strip and spline sleeve inner wall and spline shaft outer surface contact after being infiltrated with lubricating oil, it is favorable that lubricating oil is evenly and fully distributed in the gap between spline shaft and spline sleeve, improve lubrication effect.

[0007] Preferably, the spline sleeve and spline shaft are fixedly connected with universal joint heads at the ends away from each other, the two universal joint heads are connected to two axes not in the same straight line mechanical device, and transmission is conducted.

[0008] Preferably, the inner wall of the fixing ring is provided with an annular clamping groove, the outer surface of the sealing ring is provided with a clamping protrusion, and the clamping protrusion is located in the annular clamping groove. The fixing ring and the sealing ring are clamped and fixed through the annular clamping groove and the clamping protrusion, so that the sealing ring is convenient to disassemble and replace.

[0009] Preferably, the inner wall of the sealing ring is equidistantly provided with a plurality of protruding blocks, and the protruding blocks are located in the first spline groove. When the spline shaft slides in the spline sleeve, the impurities in the first spline groove are scraped off through the protruding blocks, and the sealing performance of the sealing ring on the inside of the spline sleeve is improved.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The utility model discloses a spline shaft and spline sleeve are provided with a universal joint head, a first spline groove, a spline sleeve, a second spline groove, a lubricating oil nozzle and a straight line groove, which can fully lubricate the spline shaft when it slides in the spline sleeve, avoiding noise caused by sliding friction.

[0012] 2. The utility model discloses a sponge strip, which can absorb the lubricating oil in the spline sleeve, and the sponge strip and the inner wall of the spline sleeve are in contact with the outer surface of the spline shaft, which is beneficial to the uniform and sufficient distribution of the lubricating oil between the spline shaft and the spline sleeve, improving the lubricating effect.

[0013] 3. The utility model discloses a protruding block, which can scrape off the impurities in the first spline groove when the spline shaft slides in the spline sleeve, and improve the sealing performance of the sealing ring on the inside of the spline sleeve. DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic view of the utility model fixing ring;

[0016] Figure 3 It is a three-dimensional structure schematic view of the utility model spline sleeve;

[0017] Figure 4This is a schematic diagram of the main structure of the utility model.

[0018] Figure numerals: 1, universal joint head; 2, spline shaft; 3, first spline groove; 4, fixing ring; 5, spline sleeve; 6, raised block; 7, sealing ring; 8, annular groove; 9, snap-on protrusion; 10, second spline groove; 11, linear groove; 12, sponge strip; 13, lubricating oil nozzle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figures 1-4 As shown, the utility model proposes a universal joint assembly for preventing sliding noise, comprising a universal joint head 1, a spline shaft 2 and a spline sleeve 5, one end of the spline shaft 2 is located inside the spline sleeve 5, and the ends of the spline sleeve 5 and the spline shaft 2 that are separated from each other are fixedly connected with the universal joint head 1, and two mechanical devices whose axes are not in the same straight line are connected through the two universal joint heads 1, the spline shaft 2 and the spline sleeve 5, and transmission is performed, and the two universal joint heads can be controlled by sliding the spline shaft 2 inside the spline sleeve 5. 1, in order to adapt to the change of transmission spacing, the outer surface of the spline shaft 2 is provided with a first spline groove 3, and the inner wall of the spline sleeve 5 is provided with a second spline groove 10, and the first spline groove 3 and the second spline groove 10 are adapted to each other. The inner wall of the second spline groove 10 is provided with a plurality of linear grooves 11 in an annular array and equidistantly spaced. The interior of the linear groove 11 is used to accommodate lubricating oil to facilitate the contact between the spline shaft 2 and the spline sleeve 5 and the lubricating oil, and to lubricate the contact surface of the spline shaft 2 and the spline sleeve 5.

[0022] A sponge strip 12 is provided inside the linear groove 11. The sponge strip 12 can absorb the lubricating oil inside the spline sleeve 5. The sponge strip 12 soaked with lubricating oil contacts the inner wall of the spline sleeve 5 and the outer surface of the spline shaft 2, which is conducive to the lubricating oil being evenly and fully distributed in the gap between the spline shaft 2 and the spline sleeve 5, thereby improving the lubrication effect. A lubricating oil nozzle 13 is fixedly connected to the outer surface of the spline sleeve 5, and a fixing ring 4 is fixedly installed at one end of the spline sleeve 5 close to the spline shaft 2. A sealing ring 7 is provided inside the fixing ring 4. The sealing ring 7 plays a sealing role to prevent the lubricating oil inside the spline sleeve 5 from leaking, and the spline shaft 2 passes through the sealing ring 7.

[0023] When the utility model is in use, two mechanical devices whose axes are not in the same straight line are connected through two universal joint heads 1, spline shafts 2 and spline sleeves 5, and transmission is performed. Lubricating oil is injected into the spline sleeve 5 through the lubricating oil nozzle 13, and the lubricating oil enters the linear groove 11 and lubricates the spline shaft 2 and the spline sleeve 5 to avoid noise generated by sliding friction of the spline shaft 2 inside the spline sleeve 5.

[0024] Example 2

[0025] like Figure 1 、 Figure 2 and Figure 4 As shown, the utility model proposes a universal joint assembly for preventing sliding noise. Compared with the first embodiment, this embodiment also includes an annular groove 8 provided on the inner wall of the fixing ring 4, and a clamping protrusion 9 provided on the outer surface of the sealing ring 7, and the clamping protrusion 9 is located inside the annular groove 8. The fixing ring 4 and the sealing ring 7 are clamped and fixed by the annular groove 8 and the clamping protrusion 9, which facilitates the disassembly and replacement of the sealing ring 7. A plurality of raised blocks 6 are equidistantly provided on the inner wall of the sealing ring 7, and the raised blocks 6 are located inside the first spline groove 3.

[0026] In this embodiment, when the spline shaft 2 slides into the spline sleeve 5 , impurities inside the first spline groove 3 are scraped away by the protruding block 6 , and the sealing performance of the sealing ring 7 to the inside of the spline sleeve 5 is also improved.

[0027] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A universal joint assembly for preventing sliding noise, comprising a universal joint head (1), a spline shaft (2) and a spline sleeve (5), characterized in that: One end of the spline shaft (2) is located inside the spline sleeve (5); a first spline groove (3) is provided on the outer surface of the spline shaft (2); a second spline groove (10) is provided on the inner wall of the spline sleeve (5); the first spline groove (3) and the second spline groove (10) are adapted to each other; a plurality of linear grooves (11) are provided on the inner wall of the second spline groove (10) in an annular array and are equidistantly spaced; a lubricating oil nozzle (13) is fixedly connected to the outer surface of the spline sleeve (5); a fixing ring (4) is fixedly installed on one end of the spline sleeve (5) close to the spline shaft (2); a sealing ring (7) is provided inside the fixing ring (4), and the spline shaft (2) passes through the sealing ring (7).

2. The universal joint assembly for preventing sliding noise according to claim 1, characterized in that: A sponge strip (12) is provided inside the linear groove (11).

3. The universal joint assembly for preventing sliding noise according to claim 1, characterized in that: The ends of the spline sleeve (5) and the spline shaft (2) that are separated from each other are both fixedly connected with a universal joint head (1).

4. The universal joint assembly for preventing sliding noise according to claim 1, characterized in that: An annular groove (8) is provided on the inner wall of the fixing ring (4), and a clamping protrusion (9) is provided on the outer surface of the sealing ring (7), and the clamping protrusion (9) is located inside the annular groove (8).

5. The universal joint assembly for preventing sliding noise according to claim 4, characterized in that: The inner wall of the sealing ring (7) is provided with a plurality of raised blocks (6) at equal intervals, and the raised blocks (6) are located inside the first spline groove (3).

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