Composite top glue assembly

Abstract

A composite material top glue assembly, including a support, a composite bushing body, a cover plate; the composite bushing body includes a rubber bushing body, a first buffer block and a second buffer block, the first buffer block and the second buffer block are respectively assembled on the upper and lower ends of the rubber bushing body; the top and bottom of the rubber bushing body are provided with a first groove and a second groove; the first buffer block is provided with a first boss and a second boss, the first boss of the first buffer block is assembled in the first groove at the top of the rubber bushing body, and the second boss of the first buffer block is assembled in the second groove at the top of the rubber bushing body; the first boss of the second buffer block is assembled in the first groove at the bottom of the rubber bushing body, and the second boss of the second buffer block is assembled in the second groove at the bottom of the rubber bushing body. When the inner core moves up and down under the action of the piston rod, the inner core drives the first buffer block and the second buffer block to move up and down, so as to isolate the vertical vibration and improve the comfort.

Description

Technical Field

[0001] This application relates to the field of automotive suspension damping shock absorber top mount assembly technology, and in particular to a composite material top mount assembly. Background Technology

[0002] A top mount is a component installed at the top of the piston rod of a car suspension damper. Its bracket is connected to the chassis tower, and the shock absorber piston rod is connected to the inner core of the top mount bushing. When a car travels on uneven roads, vibrations from the rough surface are transmitted through the tires to the shock absorbers, creating damping force, which is then transmitted to the top mount via the piston rod. Therefore, a medium is needed between the inner core of the top mount and its bracket to isolate the damping force of the piston rod, thereby reducing vibrations transmitted to the car body and improving ride comfort.

[0003] Traditionally, vulcanized rubber is commonly used as the vibration damping medium in conventional top mounts. However, rubber itself has limitations: higher hardness rubber has better tensile strength and wear resistance, which is beneficial for durability, but its dynamic-to-static ratio is high, which is detrimental to comfort; while lower hardness rubber has a lower dynamic-to-static ratio, but its tensile strength and wear resistance are poor, which is also detrimental to durability. Customers often require lower dynamic stiffness, which conflicts with high durability. Therefore, a material with high durability and a low dynamic-to-static ratio has been sought: polyurethane. Foamed polyurethane material is cut into the required shape, and an inner core is installed in the middle to form the top mount bushing structure. After assembly into the bracket, it constitutes the top mount assembly. Because the vibration-damping polyurethane and inner core of this top mount bushing are assembled without external tube support, its radial stiffness is often very low, and assembly gaps may exist, which will lead to poor vehicle handling. Therefore, there is a contradiction between handling and comfort.

[0004] Therefore, we propose a composite material top adhesive assembly. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a composite material top adhesive assembly, in which the piston rod drives the inner core to move up and down, and the inner core drives the first buffer block and the second buffer block to move up and down, thereby isolating vertical vibration and improving comfort.

[0006] The technical solution adopted in this application is as follows: A composite material top adhesive assembly, comprising: support; The composite bushing body is housed within the support. The cover plate is fixedly connected to the bracket and pressed tightly onto the composite bushing body; The composite bushing body includes a rubber bushing body, a first buffer block and a second buffer block, which are respectively assembled on the upper and lower ends of the rubber bushing body; the top and bottom of the rubber bushing body are provided with a first groove and a second groove. The first buffer block and the second buffer block have the same structure. The first buffer block is provided with a first boss and a second boss. The first boss and the second boss protrude in the same direction. The first boss of the first buffer block is fitted into the first groove at the top of the rubber bushing body, and the second boss of the first buffer block is fitted into the second groove at the top of the rubber bushing body. The first boss of the second buffer block is fitted into the first groove at the bottom of the rubber bushing body, and the second boss of the second buffer block is fitted into the second groove at the bottom of the rubber bushing body.

[0007] Its further features are: The bracket is secured with bolts in a knurled manner.

[0008] The bolts are press-fit bolts, and there are three bolts in total.

[0009] Both the first and second buffer blocks are made of polyurethane.

[0010] The first boss, the second boss, and the first buffer block are an integral structure.

[0011] Both the bracket and the cover plate are made of cast aluminum.

[0012] The rubber bushing body is composed of an outer tube, a rubber main spring, and an inner core vulcanized into one piece.

[0013] Both the first groove and the second groove are annular.

[0014] The second grooves at the top and bottom of the rubber bushing body are provided on the inner core; the first grooves at the top and bottom of the rubber bushing body are provided on the rubber main spring.

[0015] The beneficial effects of this application are as follows: This application features a compact and reasonable structure, and is easy to operate. The inner core is connected to the piston rod. When vibration excitation from the road surface is transmitted to the top rubber assembly, i.e., when the piston rod drives the inner core to move up and down, the inner core drives the first and second buffer blocks to move up and down, isolating vertical vibration and improving comfort. When steering or tilting, the piston rod drives the inner core to move radially, and the rubber main spring on the rubber bushing body provides greater radial stiffness, which can reduce tilting and improve handling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this application.

[0017] Figure 2 for Figure 1Top view.

[0018] Figure 3 for Figure 2 Schematic diagram of the AA section.

[0019] Figure 4 This is a schematic diagram of the rubber bushing body of this application. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the rubber bushing body of this application. Figure 2 .

[0021] Figure 6 This is a schematic diagram of the first buffer block of this application.

[0022] Figure 7 This is a schematic diagram of the cover plate for this application.

[0023] The components include: 1. Bracket; 2. Cover plate; 3. Bolt; 4. First buffer block; 5. Second buffer block; 6. Outer tube; 7. Rubber main spring; 8. Inner core; 401. First boss; 402. Second boss; 901, First groove; 902, Second groove. Detailed Implementation

[0024] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0025] like Figures 1-7 As shown, a composite material top adhesive assembly includes a bracket 1, a cover plate 2, bolts 3, a first buffer block 4, a second buffer block 5, and a rubber bushing body.

[0026] In one embodiment, the bracket 1 is made of cast aluminum.

[0027] In one embodiment, the cover plate 2 is made of cast aluminum.

[0028] The rubber bushing body is set in the bracket 1, and the rubber bushing body is interference-fitted with the bracket 1. The first buffer block 4 and the second buffer block 5 are respectively installed at the upper and lower ends of the rubber bushing body. The first buffer block 4, the second buffer block 5 and the rubber bushing body form a composite bushing body. The cover plate 2 is fixed to the bracket 1 and is pressed tightly on the composite bushing body.

[0029] In one embodiment, the cover plate 2 is fixed to the bracket 1 by riveting.

[0030] In one embodiment, bolt 3 is a press-fit bolt, and bolt 3 is pressed onto bracket 1 by knurling.

[0031] In one embodiment, the rubber bushing body is formed by vulcanizing the outer tube 6, the rubber main spring 7, and the inner core 8 into one piece.

[0032] The first buffer block 4 and the second buffer block 5 have the same structure. The top and bottom of the rubber bushing body are provided with a first groove 901 and a second groove 902, and both the first groove 901 and the second groove 902 are annular.

[0033] The first buffer block 4 is provided with a first boss 401 and a second boss 402, and the first boss 401 and the second boss 402 protrude in the same direction.

[0034] The first boss 401 of the first buffer block 4 is fitted into the first groove 901 on the top of the rubber bushing body, and the second boss 402 of the first buffer block 4 is fitted into the second groove 902 on the top of the rubber bushing body.

[0035] The first boss 401 of the second buffer block 5 is fitted into the first groove 901 at the bottom of the rubber bushing body, and the second boss 402 of the second buffer block 5 is fitted into the second groove 902 at the bottom of the rubber bushing body.

[0036] The first buffer block 4 and the second buffer block 5 are both made of polyurethane.

[0037] The first boss 401, the second boss 402 and the first buffer block 4 are an integral structure.

[0038] In one embodiment, the second grooves 902 at the top and bottom of the rubber bushing body are provided on the inner core 8; the first grooves 901 at the top and bottom of the rubber bushing body are provided on the rubber main spring 7.

[0039] The inner core 8 is connected to the piston rod. When vibrations from the road surface are transmitted to the top rubber assembly, i.e., when the piston rod drives the inner core 8 to move up and down, the inner core 8 drives the first buffer block 4 and the second buffer block 5 to move up and down, isolating vertical vibrations and improving comfort. When steering or tilting, the piston rod drives the inner core 8 to move radially. The rubber main spring 7 on the rubber bushing body provides greater radial stiffness, which can reduce tilting and improve handling.

[0040] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A composite material top adhesive assembly, characterized in that, include: Support (1); The composite bushing body is set in the bracket (1); The cover plate (2) is fixedly connected to the bracket (1) and pressed against the composite bushing body; The composite bushing body includes a rubber bushing body, a first buffer block (4) and a second buffer block (5), the first buffer block (4) and the second buffer block (5) are respectively assembled on the upper and lower ends of the rubber bushing body; the top and bottom of the rubber bushing body are provided with a first groove (901) and a second groove (902). The first buffer block (4) and the second buffer block (5) have the same structure. The first buffer block (4) is provided with a first boss (401) and a second boss (402). The first boss (401) and the second boss (402) protrude in the same direction. The first boss (401) of the first buffer block (4) is installed in the first groove (901) at the top of the rubber bushing body, and the second boss (402) of the first buffer block (4) is installed in the second groove (902) at the top of the rubber bushing body. The first boss (401) of the second buffer block (5) is installed in the first groove (901) at the bottom of the rubber bushing body, and the second boss (402) of the second buffer block (5) is installed in the second groove (902) at the bottom of the rubber bushing body.

2. The composite material top adhesive assembly as described in claim 1, characterized in that: Bolts (3) are knurled on the bracket (1).

3. The composite material top adhesive assembly as described in claim 2, characterized in that: The bolt (3) is a press-fit bolt, and there are three bolts (3).

4. The composite material top adhesive assembly as described in claim 1, characterized in that: The first buffer block (4) and the second buffer block (5) are both made of polyurethane.

5. The composite material top adhesive assembly as described in claim 1, characterized in that: The first boss (401), the second boss (402) and the first buffer block (4) are an integral structure.

6. The composite material top adhesive assembly as described in claim 1, characterized in that: The bracket (1) and the cover plate (2) are both made of cast aluminum.

7. The composite material top adhesive assembly as described in claim 1, characterized in that: The rubber bushing body is formed by vulcanizing an outer tube (6), a rubber main spring (7), and an inner core (8).

8. The composite material top adhesive assembly as described in claim 1, characterized in that: Both the first groove (901) and the second groove (902) are annular.

9. A composite material top adhesive assembly as described in claim 7, characterized in that: The second groove (902) at the top and bottom of the rubber bushing body is provided on the inner core (8); the first groove (901) at the top and bottom of the rubber bushing body is provided on the rubber main spring (7).

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