Highly supported split steering intermediate shaft boot

Abstract

The utility model relates to the technical field of steam accessory, and disclose a high supportability split type steering intermediate shaft boot, including upper and lower metal sheet, rubber pad, needle roller bearing, the rubber pad is through the hole of rubber snap nail structure of lower metal sheet and is snapped on the upper metal sheet, needle roller bearing is through the interference assembly in rubber ball head inside, and needle roller bearing includes elastic outer ring, retainer, needle roller and second lubricating grease, bearing cover plate is full of oil and is put into bearing ring and another bearing cover plate and carries out the joint through the interference assembly and is installed in rubber ball head inside, and rubber ball head and upper and lower metal sheet carry out the interference assembly. The utility model discloses split type steering intermediate shaft boot assembly is fixed through metal sheet and car front apron, and rubber pad is sealed with front apron, and needle roller bearing and bearing ring and car intermediate shaft interference fit, and satisfy the intermediate shaft rotation function, and this high supportability steering intermediate shaft boot has easy assembly, economic and practical, dustproof, waterproof, rotates smoothly and the high supportability to intermediate shaft.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a highly supportive split steering intermediate shaft sleeve. Background Technology

[0002] With rising living standards and increased outdoor activities, the demand for high-end vehicles, such as off-road vehicles, is also growing, leading to higher safety requirements for automobiles. Most intermediate shafts (BC section) on the market are single-section shafts. However, to optimize overall vehicle safety, space utilization, production efficiency, and maintenance costs, the BC section is often made into two sections connected by a universal joint. This results in a lack of support for the intermediate shaft. The steering intermediate shaft sleeve, located between the engine compartment and the passenger compartment, primarily serves to protect against water, sound, and dust, while also providing dynamic support for the intermediate shaft. This design may become a future market trend. Its quality directly impacts the vehicle's handling and drivability.

[0003] In order to control the overall vehicle handling and drivability, this utility model provides an economical, practical, dustproof, noise-reducing, and highly maneuverable steering intermediate shaft sleeve assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a highly supportive split steering intermediate shaft sleeve to solve the following technical problem: poor vehicle handling and drivability when the BC section is a two-section shaft.

[0005] The objective of this utility model can be achieved through the following technical solutions: A highly supportive split steering intermediate shaft sleeve includes an upper metal plate, a lower metal plate disposed on the upper metal plate, a rubber pad disposed between the upper metal plate and the lower metal plate, and the rubber pad is fastened to the upper metal plate through holes in the lower metal plate by a plurality of rubber clip structures. A rubber ball head is provided in the inner cavity formed by the upper metal plate and the lower metal plate. The rubber ball head is interference-fitted with the upper metal plate and the lower metal plate respectively. A needle roller bearing is interference-fitted inside the rubber ball head. The needle roller bearing consists of an elastic outer ring, a cage, needle rollers, and a second grease.

[0006] As a further embodiment of this utility model: the rubber clip structure on the rubber pad is used for the installation of the upper metal plate clip structure.

[0007] As a further embodiment of this invention: the needle roller bearing is interference-fitted with the rubber ball head, and the inside of the needle roller bearing is coated with grease.

[0008] As a further embodiment of this utility model: the needle roller bearing is interference-fitted with the intermediate shaft and has a self-aligning function; the needle roller is transition-fitted with the intermediate shaft and is adjustable to accommodate the size of the intermediate shaft.

[0009] As a further aspect of this invention: the surface of the rubber ball head is coated with a first lubricant to provide adjustment of the steering wheel angle.

[0010] As a further embodiment of this utility model, a bearing cover plate is interference-fitted to the lower end of the rubber ball head.

[0011] As a further embodiment of this utility model: a bearing ring is fitted into the lower end gap of the bearing cover plate, and the middle gap between the bearing cover plate and the bearing ring is filled with a first lubricant.

[0012] As a further embodiment of this utility model: the bearing ring has a K-type structure design and is interference-fitted with the intermediate shaft to accommodate the size of the intermediate shaft for adjustment.

[0013] As a further embodiment of this invention: the rubber ball head is interference-fitted with the elastic outer ring, and the elastic outer ring has the ability to change diameter.

[0014] As a further embodiment of this utility model: the cage is clearance-fitted with the needle roller, and the needle roller rolls along its pitch circle.

[0015] The beneficial effects of this utility model are: (1) Assembly convenience and sealing and dustproof effect: This utility model uses three rubber clips to clamp the rubber pad onto the metal plate, ensuring the stable fixing and sealing performance of the rubber pad. It is easy to install and has good shock absorption and noise reduction efficiency. The elastic outer ring and the cage adopt interference fit to ensure that they do not rotate or fall off during use, which improves the sealing performance of the overall structure. The elastic outer ring adopts an open ring. When the assembly limit of ±5mm in three directions of the vehicle body is met during the use of the whole vehicle, the transition seal between the needle roller and the intermediate shaft is achieved to ensure more stable torque transmission, further improving the sealing performance of the overall structure and effectively achieving the dustproof effect. (2) Performance optimization and structural stability: The locking structure of the rubber pad can effectively reduce vibration and noise, and the second grease injected into the inner ring of the needle roller bearing can reduce frictional resistance, ensuring that the two can smoothly transmit torque during relative movement, effectively improving torque transmission efficiency and meeting torque requirements; the needle roller bearing and the rubber ball are interference-fitted to ensure that the product does not rotate or fall off during use. Combined with the stable assembly of the elastic outer ring and the cage, the overall structural stability is fully guaranteed. It has the characteristics of easy assembly, economical and practical, dustproof, good noise reduction effect, smooth rotation of the support shaft and high support for the intermediate shaft.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the bearing assembly of this utility model.

[0019] In the diagram: 100, upper metal plate; 200, lower metal plate; 300, rubber pad; 400, needle roller bearing; 500, rubber ball head; 600, bearing cover plate; 700, bearing ring; 800, first lubricant. 401, Elastic outer ring; 402, Cage; 403, Needle roller; 404, Secondary grease. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] In the field of automotive parts technology, with the increasing popularity of off-road vehicles and rising user demands for vehicle safety, the steering intermediate shaft BC section is often modified to a two-section shaft plus universal joint structure to optimize overall vehicle safety, space layout, production efficiency, and maintenance costs. However, this results in a lack of support for the intermediate shaft. As a key component between the engine compartment and the driver's cabin, the steering intermediate shaft sleeve needs to simultaneously achieve water insulation, sound insulation, dustproofing, and dynamic support functions. Its quality directly affects the vehicle's handling and drivability, and this type of design is gradually becoming a market trend. Therefore, this utility model provides an economical and practical steering intermediate shaft sleeve assembly with excellent dustproofing and noise reduction effects and high handling performance to control the overall vehicle handling and drivability.

[0023] Example 1: Please refer to Figure 1 As shown, a highly supportive split steering intermediate shaft sleeve includes an upper metal plate 100, on which a rubber pad 300 is disposed. The rubber pad 300 is engaged with the upper metal plate 100 by three rubber clips. A needle roller bearing 400 is interference-fitted into the product. The needle roller bearing 400 consists of an elastic outer ring 401, a cage 402, needle rollers 403, and a second grease 404.

[0024] In this embodiment, the upper metal plate 100 undergoes a neutral salt spray test as required, and after the test, it meets the requirement of no red rust after 480 hours. The rubber clip structure on the rubber pad 300 is used for the snap-fit ​​installation of the upper metal plate 100. The rubber pad 300 and the upper metal plate 100 are connected by snap-fit, which simplifies installation and disassembly, enables efficient assembly, improves production efficiency, and ensures that the connecting parts remain stable during vibration and movement.

[0025] Further, please refer to Figure 2 As shown, the needle roller bearing 400 and the rubber ball head 500 are interference-fitted, and the inside of the needle roller bearing 400 is coated with grease, which can ensure that the needle roller bearing 400 and the rubber ball head 500 remain stable during vibration or movement, and ensure that they do not rotate or fall off during use.

[0026] The needle roller bearing 400 is interference-fitted with the intermediate shaft and has a built-in self-aligning function, so even if errors occur during the assembly process, it can still ensure that it remains concentric with the shaft.

[0027] A rubber ball head 500 is provided in the inner cavity formed by the upper metal plate 100 and the lower metal plate 200. The rubber ball head 500 is interference-fitted with the upper metal plate 100 and the lower metal plate 200. The surface of the rubber ball head 500 is coated with a first lubricant 800 to provide a five-degree adjustment range for the steering wheel and make the adjustment smoother, thereby ensuring the overall waterproofness and torque requirements.

[0028] Example 2: Based on Example 1, please refer to... Figure 2 , Figure 3As shown, the needle roller bearing 400 is filled with a second grease 404. The second grease 404 reduces the friction between the needle roller 403 and the shaft, extends the life of the seal, and at the same time ensures the torque transmission between the needle roller 403 and the intermediate shaft.

[0029] Further, please refer to Figure 1 As shown, the elastic outer ring 401 is interference-fitted with the rubber ball head 500, and the elastic outer ring 401 has a variable diameter capability. This effectively ensures that the needle roller 403 will not be squeezed during assembly.

[0030] The cage 402 and the needle roller 403 are clearance-fitted, and the needle roller 403 can roll along its pitch circle, which can effectively distribute the load of the shaft to the needle roller 403 and ensure the torque transmission between the needle roller 403 and the intermediate shaft.

[0031] The needle roller 403 has a transition fit with the intermediate shaft and can be adjusted to adapt to the size of the intermediate shaft.

[0032] Further, please refer to Figure 1 As shown, the rubber ball head 500 is interference-fitted with the bearing cover plate 600, and the bearing cover plate 600 is clearance-fitted with the bearing ring 700, with the middle gap filled with the first lubricant 800. The bearing ring 700 has a K-type structure design and is interference-sealed with the intermediate shaft, which can be adjusted to adapt to the size of the intermediate shaft.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly supportive, split-type steering intermediate shaft sleeve, characterized in that, It includes an upper metal plate (100), on which a lower metal plate (200) is disposed, and a rubber pad (300) is disposed between the upper metal plate (100) and the lower metal plate (200), and the rubber pad (300) is fastened to the upper metal plate (100) through holes in the lower metal plate (200) by a plurality of rubber clip structures; A rubber ball head (500) is provided in the inner cavity formed by the upper metal plate (100) and the lower metal plate (200). The rubber ball head (500) is press-fitted with the upper metal plate (100) and the lower metal plate (200) respectively. A needle roller bearing (400) is press-fitted inside the rubber ball head (500). The needle roller bearing (400) consists of an elastic outer ring (401), a cage (402), needle rollers (403), and a second grease (404).

2. The high-support split steering intermediate shaft sleeve according to claim 1, characterized in that, The rubber clip structure on the rubber pad (300) is used for the installation of the upper metal plate (100) clip structure.

3. The high-support split steering intermediate shaft sleeve according to claim 1, characterized in that, The needle roller bearing (400) is interference-fitted with the rubber ball head (500), and the inside of the needle roller bearing (400) is coated with grease.

4. The high-support split steering intermediate shaft sleeve according to claim 1, characterized in that, The needle roller bearing (400) is interference-fitted with the intermediate shaft and has a self-aligning function. The needle roller (403) is transition-fitted with the intermediate shaft and is adjustable to accommodate the size of the intermediate shaft.

5. A highly supportive, split-type steering intermediate shaft sleeve according to claim 1, characterized in that, The surface of the rubber ball head (500) is coated with a first grease (800) to provide adjustment of the steering wheel angle.

6. A high-support split steering intermediate shaft sleeve according to claim 1, characterized in that, The lower end of the rubber ball head (500) is interference-fitted with a bearing cover plate (600).

7. A high-support split steering intermediate shaft sleeve according to claim 6, characterized in that, The bearing cover plate (600) is fitted with a bearing ring (700) at the lower end of the gap, and the middle gap between the bearing cover plate (600) and the bearing ring (700) is filled with first grease (800).

8. A highly supportive split steering intermediate shaft sleeve according to claim 7, characterized in that, The bearing ring (700) is designed with a K-type structure and is interference-fitted with the intermediate shaft to accommodate the size of the intermediate shaft.

9. A high-support split steering intermediate shaft sleeve according to claim 1, characterized in that, The rubber ball head (500) is interference-fitted with the elastic outer ring (401), and the elastic outer ring (401) has the ability to change diameter.

10. A highly supportive split steering intermediate shaft sleeve according to claim 1, characterized in that, The cage (402) is clearance-fitted with the needle roller (403), and the needle roller (403) rolls along its pitch circle.

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