Cab suspension buffer structure

Abstract

The utility model relates to the technical field of automobile suspension buffering, and discloses a cab suspension buffering structure which comprises an automobile body floor, an automobile frame installation position and a rubber mat arranged between the automobile body floor and the automobile frame installation position. The section of the rubber mat is a big-end-up unequal-diameter cylinder, the top end of the rubber mat is provided with an embedded cavity, an upper base plate is fixed in the cavity, and the top face of the upper base plate makes contact with a vehicle body to disperse loads. According to the structure, the upper base plate is stably connected through the embedded cavity, vehicle body loads are evenly distributed on the rubber mat, stress concentration is avoided, the rubber mat is evenly and gently changed, local abrasion is reduced, and the service life is prolonged. And meanwhile, the vibration isolation effect of the suspension system is improved through uniform deformation, and the driving and riding comfort is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of automotive suspension buffer technology, specifically to a cab suspension buffer structure. Background Technology

[0002] Most small and micro commercial vehicles adopt a non-load-bearing structure. The cab is connected to the frame through a suspension system, which is a columnar rubber structure with metal on the top and bottom for contact and fastening to the body and frame. The suspension system bears the weight of the cab while providing a certain degree of vibration isolation and shock absorption, which requires the suspension system to be both rigid and flexible.

[0003] like Figure 1 As shown, existing vehicle suspension systems typically include a vehicle floor and a frame mounting position. A rubber pad, usually a cylindrical rubber pad of uniform diameter, is fixed between the vehicle floor and the frame mounting position. The pad 1 is positioned between the vehicle floor 01 and the frame mounting position 02, thus suspending the vehicle body on the frame to form the vehicle suspension structure. The vehicle load acts directly on the pad. Because the top and bottom surfaces of the pad are made of metal and are firmly attached to the vehicle body and frame, the vehicle load is transferred to the pad 1 through the vehicle floor 01. When the load on the pad is uneven, it leads to uneven deformation, causing some parts of the pad to bear greater stress. When the stress on the pad 1 exceeds the rubber's tolerance limit, it accelerates the wear and damage of the pad, reducing its service life. Furthermore, uneven deformation also affects the vibration isolation effect of the suspension system, causing bumps in the cab and reducing ride comfort. Utility Model Content

[0004] The present invention aims to provide a cab suspension buffer structure to improve the existing automobile suspension structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cab suspension buffer structure, including a vehicle floor and a frame mounting position, wherein a rubber pad is fixed between the vehicle floor and the frame mounting position, the cross-section of the rubber pad is an unequal cylinder with a larger upper section and a smaller lower section, an embedding cavity is provided at the top of the rubber pad, and an upper pad plate is embedded and fixed in the embedding cavity, the top surface of the upper pad plate is in contact with the bottom surface of the vehicle body and can distribute the load of the vehicle body.

[0006] The beneficial effects of this solution are as follows: By cleverly incorporating an embedded cavity at the top of the rubber pad, this design allows the upper pad to be securely fixed to the top of the rubber pad. During use, the upper pad effectively distributes the load borne by the rubber pad evenly, enabling the rubber pad to achieve a more uniform shape change under stress. When vehicle loads are applied to the rubber pad, the upper pad ensures that these loads are evenly distributed on the rubber pad, thereby avoiding excessive stress concentration in certain areas. This results in a more uniform and gradual deformation process of the rubber pad, greatly reducing localized wear and damage, and thus significantly extending the service life of the rubber pad. Furthermore, uniform deformation also positively enhances the vibration isolation effect of the suspension system, further improving driving comfort and providing users with a smoother and more enjoyable driving experience.

[0007] Furthermore, the upper pad and the rubber pad are bonded together through a vulcanization process.

[0008] Beneficial effects: By bonding the upper pad and the rubber pad through a vulcanization process, the upper pad and the rubber pad are made into a whole, thereby preventing the upper pad from shifting due to pressure, and ensuring that the upper pad can play its intended dispersing role.

[0009] Furthermore, a buffer section with a concave shape is provided in the middle of the rubber pad. This buffer section ensures that when the rubber pad deforms under the pressure transmitted from the upper pad, the deformation on the surface is more uniform, preventing the rubber pad's surface from deforming beyond its deformation range and causing cracks, thus affecting the pad's service life.

[0010] Furthermore, the lower part of the buffer section is integrally molded with a cup-shaped structure that adapts to the frame mounting position. The cup-shaped structure is designed to be accurately placed in the mounting position on the frame, serving a positioning function.

[0011] Furthermore, the bowl-shaped structure includes a first positioning section and a second positioning section with successively decreasing diameters. The frame mounting position includes a support surface with mounting holes. The diameter of the first positioning section is larger than the diameter of the mounting hole, and the diameter of the second positioning section is adapted to the diameter of the mounting hole.

[0012] Furthermore, an avoidance groove is provided at the junction of the first positioning segment and the second positioning segment.

[0013] Furthermore, the upper pad is made of steel plate. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the suspension structure mentioned in the background section;

[0015] Figure 2 This is a cross-sectional view of the suspension structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the present invention in its assembled state. Detailed Implementation

[0017] The following detailed description illustrates the specific implementation method:

[0018] The reference numerals in the accompanying drawings include: vehicle floor 01, frame mounting position 02, rubber pad 1, buffer section 11, bowl-shaped structure 12, clearance groove 121, and upper pad 2.

[0019] Example

[0020] The basic implementation examples are as follows: Figure 2-3 As shown, Figure 2-3 The cab suspension buffer structure shown includes the vehicle floor 01 and the frame mounting position 02, as follows: Figure 3 As shown, a rubber pad 1 is fixed between the vehicle floor 01 and the frame mounting position 02, such as... Figure 2 As shown, the cross-section of the rubber pad 1 is an unequal diameter cylinder with a larger diameter at the top and a smaller diameter at the bottom, in order to improve the overall rigidity of the rubber pad 1 and at the same time improve the vibration isolation performance of the rubber pad 1.

[0021] The rubber pad 1 has an embedded cavity at its top, into which an upper pad 2, made of steel, is embedded and fixed. The steel plate and the rubber pad 1 are bonded together through a vulcanization process, thereby distributing the load of the vehicle body. A buffer section 11 with a concave shape is provided in the middle of the rubber pad 1. A bowl-shaped structure 12 adapted to the frame mounting position 02 is integrally formed at the lower part of the buffer section 11. The bowl-shaped structure 12 includes a first positioning section and a second positioning section with successively decreasing diameters. The frame mounting position 02 includes a support surface with mounting holes. The diameter of the first positioning section is larger than the diameter of the mounting hole, and the diameter of the second positioning section is adapted to the diameter of the mounting hole. A clearance groove 121 is provided at the junction of the first and second positioning sections to prevent the rubber pad 1 from contacting the metal edge of the frame mounting position 02, thus avoiding damage caused by sharp edges or burrs from the metal edge cutting the rubber during vehicle operation.

[0022] When using, such as Figure 3 As shown, the rubber pad 1 is placed between the vehicle floor 01 and the frame mounting position 02. The second positioning section of the bowl-shaped structure 12 is located in the mounting hole of the frame mounting position 02. The vehicle floor 01 rests on the surface of the upper pad 2 and the vehicle body is fixed to the frame by bolts to form a suspension system.

[0023] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cab suspension buffer structure, including a vehicle floor and a frame mounting position, wherein a rubber pad is fixed between the vehicle floor and the frame mounting position, characterized in that: The rubber pad has a cross-section of an unequal diameter cylinder with a larger top and a smaller bottom. An embedding cavity is provided at the top of the rubber pad, into which an upper pad plate is embedded and fixed. The top surface of the upper pad plate contacts the bottom surface of the vehicle body and can distribute the load of the vehicle body.

2. The cab suspension buffer structure according to claim 1, characterized in that: The upper pad and the rubber pad are bonded together by a vulcanization process.

3. The cab suspension buffer structure according to claim 2, characterized in that: The rubber pad has a buffer section in the middle, which is concave in shape.

4. The cab suspension buffer structure according to claim 3, characterized in that: The lower part of the buffer section is integrally molded with a bowl-shaped structure that fits the frame mounting position.

5. The cab suspension buffer structure according to claim 4, characterized in that: The bowl-shaped structure includes a first positioning section and a second positioning section with successively decreasing diameters. The frame mounting position includes a support surface with mounting holes. The diameter of the first positioning section is larger than the diameter of the mounting hole, and the diameter of the second positioning section is adapted to the diameter of the mounting hole.

6. The cab suspension buffer structure according to claim 5, characterized in that: An avoidance groove is provided at the junction of the first positioning segment and the second positioning segment.

7. The cab suspension buffer structure according to claim 1, characterized in that: The upper pad is made of steel plate.

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