Constant velocity universal joint bearing support structure
By designing the constant speed universal joint bearing bracket structure, the problems of insufficient installation space and high temperature failure on the engine are solved by using multi-point connections and heat insulation covers, stable installation and heat insulation effects are achieved, and production costs and vibration risks are reduced.
Patent Information
- Application Number
- CN202420028012.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-05
AI Technical Summary
The installation problems of constant speed universal joints on the engine, including insufficient space and high temperature failure, lead to failure of bearings during long-term use.
A constant speed universal joint bearing bracket structure is designed, including the bracket body, avoidance groove, heat insulation cover and multi-point connection method. It is connected to the engine housing through a triangular installation hole to avoid the boss on the engine, and cast iron is used. Material and arc-shaped heat shield for stable insulation.
The stable installation of constant speed universal joints is achieved, reducing the weight and production cost of the bracket. At the same time, while ensuring the NVH performance and bracket mode of the whole vehicle, the service life of the bearing is extended and high-temperature failure is avoided.
Smart Images
Figure CN222254745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile accessories, in particular to a constant velocity universal joint bearing bracket structure. Background Art
[0002] The constant velocity drive shaft assembly of a car is used to transmit torque and power. The constant velocity drive shaft assembly consists of a core shaft, an inner constant velocity universal joint arranged on the gearbox side, and an outer constant velocity universal joint arranged on the drive wheel. In order to meet the requirements of equal angles, stiffness differences, and layout space, the constant velocity drive shaft assembly is generally designed as a three-section structure, and the intermediate shaft is fixed to the mounting hole of the engine housing through a bracket. However, the boss on the engine will interfere with the installation of the constant velocity bracket, but due to angle and stiffness issues, the bracket bearing needs to be arranged near the boss; at the same time, the outer installation space of the constant velocity universal joint is limited, and the gap with the surrounding parts is limited. If the inner side is too close to the pre-catalyst, long-term use will cause the bearing to fail due to high temperature. Therefore, it is necessary to invent a constant velocity universal joint bearing bracket structure. Utility Model Content
[0003] The utility model aims to provide a constant velocity joint bearing bracket structure to solve the installation problem of the constant velocity joint on the engine, and to achieve a stable heat insulation installation effect for the constant velocity joint without affecting the layout space and installation rigidity.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A constant velocity joint bearing bracket structure comprises a bracket body, the bracket body is connected to a constant velocity joint handle, the upper end and the lower end of the bracket body are respectively provided with an upper mounting portion and a lower mounting portion for fixing to an engine housing, the bracket body is concavely provided with an avoidance groove on one side facing the engine housing, and a heat insulation cover is provided on the bracket body.
[0006] Furthermore, upper mounting holes are provided on both left and right sides of the upper mounting portion, and a lower mounting hole is provided on one side of the lower mounting portion, and both the upper mounting hole and the lower mounting hole are connected to the engine housing.
[0007] Furthermore, the upper mounting hole and the lower mounting hole are both connected to the engine casing by screwing.
[0008] Furthermore, the upper mounting holes and the lower mounting holes are arranged in a triangle.
[0009] Furthermore, an upper mounting boss is provided on a side of the upper mounting portion away from the engine housing, a lower mounting boss is provided on a side of the lower mounting portion away from the engine housing, and the heat insulation cover is connected to the upper mounting boss and the lower mounting boss.
[0010] Furthermore, the heat shield is an arc structure, the fixed edges at the upper and lower ends of the heat shield are respectively connected to the upper mounting boss and the lower mounting boss, and a gap is provided between the heat shield and the bracket body.
[0011] Furthermore, an upper fixing hole is provided on the upper mounting boss, and a lower fixing hole is provided on the lower mounting boss. The upper fixing hole and the lower fixing hole are connected to the heat insulation cover by screw connection.
[0012] Furthermore, a bearing hole is provided in the bracket body, a bearing is provided in the bearing hole, and a bearing limit retaining ring and a bearing pressure ring are fixedly provided on the left and right sides of the bearing respectively.
[0013] The beneficial effects of the utility model are as follows: the bracket structure of the utility model is arranged at the handle of the constant velocity joint, is connected to the engine housing through three mounting points, and avoids the boss on the engine through the avoidance groove to solve the problem of insufficient installation space. It can also minimize the weight of the bracket and reduce production costs while ensuring the NVH performance of the whole vehicle and the bracket mode.
[0014] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a schematic diagram of a high-voltage wire harness bracket assembled on an engine.
[0016] Figure 2 The utility model is a schematic diagram of the assembly of a constant velocity universal joint bearing bracket.
[0017] Figure 3 This is a schematic diagram of a constant velocity universal joint bearing bracket of the utility model in another direction.
[0018] Figure 4 The utility model is a mounting structure diagram of a constant velocity universal joint bearing bracket.
[0019] Figure 5 The utility model is a structural diagram of a constant velocity universal joint bearing bracket.
[0020] Figure 6 This is a structural diagram of a constant velocity universal joint bearing bracket in another direction of the utility model.
[0021] Figure 7 The utility model is a cross-sectional view of a constant velocity universal joint bearing bracket. DETAILED DESCRIPTION
[0022] like Figures 1 to 6A constant velocity joint bearing bracket structure shown includes a bracket body 1, the bracket body 1 is connected to the constant velocity joint handle 20, the upper end and lower end of the bracket body 1 are respectively provided with an upper mounting portion 13 and a lower mounting portion 15 for fixing to the engine housing, and the bracket body 1 is provided with an avoidance groove 16 on the side facing the engine housing, which not only avoids the engine boss 40, but also achieves a weight reduction effect; in order to achieve a better heat insulation effect, a heat insulation cover 10 is provided on the bracket body 1 to prevent the bearing from failing due to high temperature. The bracket body 1 is made of cast iron.
[0023] Preferably, in combination with the above scheme, in order to facilitate the connection between the bracket and the engine housing, upper mounting holes 131 are provided on both sides of the upper mounting portion 13, the upper mounting portion 13 is a triangular structure, and a lower mounting hole 151 is provided on one side of the lower mounting portion 15, and the upper mounting hole 131 and the lower mounting hole 151 are both connected to the engine housing.
[0024] Preferably, in combination with the above solution, in order to facilitate installation and disassembly, the upper installation hole 131 and the lower installation hole 151 are both connected to the engine housing by screw connection.
[0025] Preferably, in combination with the above solution, in order to ensure the stability of the connection, the upper mounting holes 131 and the lower mounting holes 151 are arranged in a triangle.
[0026] Preferably, in combination with the above solution, in order to facilitate the installation of the heat shield 10 on the bracket, the upper mounting portion 13 is provided with an upper mounting boss 12 on the side away from the engine housing, and the lower mounting portion 15 is provided with a lower mounting boss 14 on the side away from the engine housing, and the heat shield 10 is connected to the upper mounting boss 12 and the lower mounting boss 14. The upper mounting boss 12 and the lower mounting boss 14 can play a reinforcing role, and can save space while ensuring the bracket modal and the NVH performance of the whole vehicle. The integral boss reduces the processing technology and machining time compared with the boss separated from the reinforcing rib.
[0027] Preferably, in combination with the above scheme, in order to facilitate matching with the arc-shaped outer wall of the bracket body 1, the heat insulation cover 10 is an arc structure, and the fixed edges at the upper and lower ends of the heat insulation cover 10 are respectively connected to the upper mounting boss 12 and the lower mounting boss 14, and a heat insulation gap is provided between the heat insulation cover 10 and the bracket body 1.
[0028] Preferably, in combination with the above solution, in order to facilitate the installation and disassembly of the heat insulation cover 10, the upper mounting boss 12 is provided with an upper fixing hole 121, and the lower mounting boss 14 is provided with a lower fixing hole 141, and the upper fixing hole 121 and the lower fixing hole 141 are connected to the heat insulation cover 10 by screwing.
[0029] Preferably, in combination with the above scheme, in order to facilitate the connection between the bracket and the constant velocity joint handle 20, a bearing hole 11 is provided in the bracket body 1, a bearing 2 is provided in the bearing hole 11, and the bearing 2 can use a high temperature resistant bearing 63007-2RSD. The bearing 2 is sleeved on the constant velocity joint handle 20, and the left and right sides of the bearing 2 are respectively fixed with a bearing limit ring 3 and a bearing pressure ring 4. The inner ring of the bearing 2 and the constant velocity joint handle 20 are interference fit, and the outer ring of the bearing 2 and the bearing hole 11 are transition fit to reduce the vibration risk; the bearing hole 11 has a corresponding slot to press and position the outer ring of the bearing 2 and the bearing pressure ring 4.
[0030] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0031] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions without improvement, they all fall within the protection scope of the utility model.
Claims
1. A constant velocity universal joint bearing support structure, comprising a support body (1), characterized in that: The support body (1) is connected to the handle of the constant velocity universal joint (20); the upper end and the lower end of the support body (1) are respectively provided with an upper mounting portion (13) and a lower mounting portion (15) for fixing to the engine casing; a side of the support body (1) facing the engine casing is provided with an avoidance groove (16) inwardly concavely; and a heat insulation cover (10) is provided on the support body (1).
2. The constant velocity joint bearing support structure according to claim 1 is characterized in that: Upper mounting holes (131) are provided on both left and right sides of the upper mounting portion (13), and a lower mounting hole (151) is provided on one side of the lower mounting portion (15). Both the upper mounting hole (131) and the lower mounting hole (151) are connected to the engine housing.
3. The constant velocity joint bearing support structure according to claim 2 is characterized in that: The upper mounting hole (131) and the lower mounting hole (151) are both connected to the engine housing by screw connection.
4. The constant velocity joint bearing support structure according to claim 2 is characterized in that: The upper mounting hole (131) and the lower mounting hole (151) are arranged in a triangle.
5. The constant velocity joint bearing support structure according to claim 1, characterized in that: An upper mounting boss (12) is provided on a side of the upper mounting portion (13) away from the engine housing, a lower mounting boss (14) is provided on a side of the lower mounting portion (15) away from the engine housing, and the heat insulation cover (10) is connected to the upper mounting boss (12) and the lower mounting boss (14).
6. The constant velocity joint bearing support structure according to claim 5, characterized in that: The heat shield (10) is of an arc structure, and the fixed edges at the upper and lower ends of the heat shield (10) are respectively connected to the upper mounting boss (12) and the lower mounting boss (14), and a gap is provided between the heat shield (10) and the bracket body (1).
7. The constant velocity joint bearing support structure according to claim 6, characterized in that: The upper mounting boss (12) is provided with an upper fixing hole (121), and the lower mounting boss (14) is provided with a lower fixing hole (141). The upper fixing hole (121) and the lower fixing hole (141) are connected to the heat insulation cover (10) by screw connection.
8. The constant velocity joint bearing support structure according to claim 1, characterized in that: A bearing hole (11) is provided in the bracket body (1), a bearing (2) is provided in the bearing hole (11), and a bearing limit ring (3) and a bearing pressure ring (4) are fixedly provided on the left and right sides of the bearing (2), respectively.