Steering intermediate shaft sheath capable of meeting vehicle floating function

Abstract

The utility model discloses a steering intermediate shaft sheath capable of meeting a vehicle floating function, which comprises a metal plate, an upper dust cover, a lower dust cover, a shaft seal component A and a shaft seal component B are arranged on the metal plate, the lower dust cover penetrates through the upper dust cover through three rubber staple bolt structures to be clamped on the metal plate, and the shaft seal component A is arranged on the metal plate. The shaft seal assembly A is assembled in the upper dust cover in an interference mode, the shaft seal assembly B is assembled in the lower dust cover in an interference mode, the shaft seal assembly A and the shaft seal assembly B are coaxial, and each of the shaft seal assembly A and the shaft seal assembly B comprises a shaft seal fixing sleeve, a supporting ring, a rubber lip, a framework, a spring and lubricating grease. The utility model relates to the technical field of automobile accessories. The steering intermediate shaft sheath capable of meeting the vehicle floating function has the advantages of being easy to assemble, economical, practical, good in dustproof and noise reduction effect, high in waterproof grade and capable of meeting the vehicle floating function.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a steering intermediate shaft sleeve capable of satisfying the water floating function of a vehicle. Background Art

[0002] With the continuous improvement of living standards and the increase of outdoor activities, high-end models such as off-road vehicles are gradually increasing. Customers are also demanding higher and higher comfort levels in cars. The noise and poor sealing of low-end family cars are common problems. The steering intermediate shaft sleeve of the car is a part installed between the engine compartment and the driver's compartment. It mainly plays the role of water insulation, sound insulation and dust prevention. Its quality directly affects the sealing and noise level of the whole vehicle.

[0003] In order to control the sealing and noise of the whole vehicle, the utility model provides a steering intermediate shaft sleeve assembly which is economical and practical, has good dustproof and noise reduction effects, a high waterproof grade and can meet the vehicle's floating function. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a steering intermediate shaft sleeve which can meet the vehicle floating function, and solves the problems raised in the background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a steering intermediate shaft sleeve that can meet the vehicle floating function, including a metal plate, on which an upper dust cover, a lower dust cover, a shaft seal assembly A and a shaft seal assembly B are arranged, the lower dust cover passes through the upper dust cover and is clamped on the metal plate through three rubber staple structures, the shaft seal assembly A is fitted inside the upper dust cover through interference fit, the shaft seal assembly B is fitted inside the lower dust cover through interference fit, the shaft seal assembly A is coaxial with the shaft seal assembly B, and the shaft seal assembly A and the shaft seal assembly B both include a shaft seal fixing sleeve, a support ring, a rubber lip, a skeleton, a spring and grease.

[0006] Preferably, the rubber staple structure on the lower dust cover is used for installation with the upper dust cover and the metal plate snap-on structure.

[0007] Preferably, the bearing assembly A and the bearing assembly B are both installed into the product by interference fitting.

[0008] Preferably, a rib structure is provided on the outer circumferential surface of the shaft seal fixing sleeve for interference fit with the upper dust cover and the lower dust cover.

[0009] Preferably, a serrated pattern structure is provided on the outer circumferential surface of the rubber lip, and the rubber lip is interference fitted with the shaft seal fixing sleeve.

[0010] Preferably, the support ring and the spring are interference fitted with the rubber lip, and the grease is injected into the inner circle of the rubber lip.

[0011] Beneficial Effects

[0012] The utility model provides a steering intermediate shaft sleeve that can meet the vehicle's floating function. Compared with the prior art, it has the following beneficial effects: it is easy to assemble, economical and practical, dustproof, has good noise reduction effect, high waterproof level, and can meet the characteristics of vehicle floating function; it is installed through the rubber staple structure and the upper dust cover and the metal plate buckle structure to ensure the stable installation of the lower dust cover and avoid loosening or falling off during use; the bearing assemblies A and B are both interference-fitted into the product. This assembly method makes the connection between the bearing and the product tighter and is not easy to produce gaps, thereby improving the stability of the overall structure; the shaft seal fixing sleeve is interference-fitted with the upper and lower dust covers through the rib structure, and the rubber lip The serrated pattern structure on the outer circumference and the interference fit of the shaft seal fixing sleeve effectively avoid circumferential rotation and falling off during use, ensuring the sealing performance and meeting the waterproof requirements; the interference fit design of the support ring, spring and rubber lip enables the rubber lip to maintain an interference seal with the intermediate shaft when the assembly limit is ±5mm in three directions of the vehicle body, meeting various assembly conditions when the vehicle is in use; the inner ring of the rubber lip is filled with grease, which not only ensures smooth contact between the rubber lip and the intermediate shaft and reduces friction loss, but also effectively improves the torque transmission efficiency and meets the torque requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a cross-sectional view of the bearing assembly of the utility model.

[0016] In the figure: 1. Metal plate; 2. Upper dust cover; 3. Lower dust cover; 4. Shaft seal fixing sleeve; 5. Support ring; 6. Rubber lip; 7. Frame; 8. Spring; 9. Grease; 10. Shaft seal assembly A; 11. Shaft seal assembly B. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] See also Figure 1-3The utility model provides a technical solution: a steering intermediate shaft sleeve that can meet the vehicle floating function, including a metal plate 1, an upper dust cover 2, a lower dust cover 3, a shaft seal assembly A10 and a shaft seal assembly B11 are arranged on the metal plate 1, the lower dust cover 3 passes through the upper dust cover 2 and is clamped on the metal plate 1 through three rubber staple structures, the shaft seal assembly A10 is fitted inside the upper dust cover 2 through interference fitting, the shaft seal assembly B11 is fitted inside the lower dust cover 3 through interference fitting, the shaft seal assembly A10 is coaxial with the shaft seal assembly B11, and the shaft seal assembly A10 and the shaft seal assembly B11 both include a shaft seal fixing sleeve 4, a support ring 5, a rubber lip 6, a skeleton 7, a spring 8 and grease 9.

[0019] The rubber staple structure on the lower dust cover 3 is used for installation with the upper dust cover 2 and the metal plate 1 by snap-fitting structure.

[0020] Both bearing assembly A and bearing assembly B are installed into the product by interference fitting.

[0021] The outer circumferential surface of the shaft seal fixing sleeve 4 is provided with a rib structure which is interference fit with the upper dust cover 2 and the lower dust cover 3 to ensure that there is no circumferential rotation and no falling off during use.

[0022] The outer circumferential surface of the rubber lip 6 is provided with a serrated pattern structure, and is fitted with the shaft seal fixing sleeve 4 in an interference fit manner, thereby ensuring that the rubber lip 6 does not rotate in a circle or fall off during use.

[0023] The support ring 5 and the spring 8 are interference fitted with the rubber lip 6 to meet the ±5mm assembly limit in three directions of the vehicle body when the whole vehicle is in use. The rubber lip 6 and the intermediate shaft are interference sealed to ensure waterproofness and torque requirements. Grease 9 is injected into the inner ring of the rubber lip 6 to ensure torque transmission between the rubber lip 6 and the intermediate shaft.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0025] 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 steering intermediate shaft sleeve capable of satisfying the vehicle's floating function, comprising a metal plate (1), characterized in that: The metal plate (1) is provided with an upper dust cover (2), a lower dust cover (3), a shaft seal assembly A (10) and a shaft seal assembly B (11); the lower dust cover (3) passes through the upper dust cover (2) and is clamped on the metal plate (1) via three rubber clamp structures; the shaft seal assembly A (10) is fitted inside the upper dust cover (2) via interference fit; the shaft seal assembly B (11) is fitted inside the lower dust cover (3) via interference fit; the shaft seal assembly A (10) is coaxial with the shaft seal assembly B (11); the shaft seal assembly A (10) and the shaft seal assembly B (11) both include a shaft seal fixing sleeve (4), a support ring (5), a rubber lip (6), a frame (7), a spring (8) and grease (9).

2. The steering intermediate shaft sleeve capable of satisfying the vehicle floating function according to claim 1, characterized in that: The rubber staple structure on the lower dust cover (3) is used for installation with the upper dust cover (2) and the metal plate (1) snap-fit ​​structure.

3. The steering intermediate shaft sleeve capable of satisfying the vehicle floating function according to claim 1, characterized in that: The bearing assembly A and the bearing assembly B are both installed into the product by interference fitting.

4. The steering intermediate shaft sleeve capable of satisfying the vehicle floating function according to claim 1, characterized in that: The outer circumferential surface of the shaft seal fixing sleeve (4) is provided with a rib structure for interference fit with the upper dust cover (2) and the lower dust cover (3).

5. The steering intermediate shaft sleeve capable of satisfying the vehicle floating function according to claim 1, characterized in that: The outer circumferential surface of the rubber lip (6) is provided with a sawtooth pattern structure, and is interference fitted with the shaft seal fixing sleeve (4).

6. The steering intermediate shaft sleeve capable of satisfying the vehicle floating function according to claim 1, characterized in that: The support ring (5) and the spring (8) are interference-fitted with the rubber lip (6), and the lubricating grease (9) is injected into the inner ring of the rubber lip (6).

Images