Limiting and buffering engine suspension for commercial vehicle

Abstract

The limiting and buffering engine suspension for the commercial vehicle comprises a limiting cover, a lower framework is arranged in the limiting cover, a high-strength rubber body is arranged on the surface of the lower framework, an upper framework is arranged on the surface of the high-strength rubber body, and a mounting component is arranged on the surface of the limiting cover. The limiting cover, the lower framework, the high-strength rubber body, the upper framework and the installation component are all installed on a frame assembly and connected with an engine, and the high-strength rubber body in the middle plays a role in supporting a power assembly, reducing the influence of vibration of the power assembly on the whole vehicle, limiting swing displacement of the power assembly and improving the NVH performance of the whole vehicle. Through the limiting cover and a rubber space structure, vibration generated by an engine can be fully isolated from being transmitted to a frame and a cab, vibration noise is reduced, the vibration isolation effect is improved, the six-degree-of-freedom swing displacement position and the rigidity requirement of a vehicle engine assembly are limited, the sensory comfort of a driver and passengers is improved, vibration of the engine to a vehicle body is reduced, and the NVH performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a limited buffer engine suspension for commercial vehicles. Background Art

[0002] The engine is connected to the vehicle frame through a suspension device. The engine is one of the main vibration sources on the vehicle. Its vibration is periodic and speed-dependent. Therefore, the suspension device is not only a connection device, but also a vibration reduction device. The suspension device is directly related to the transmission of engine vibration to the vehicle body and affects the vibration and noise of the entire vehicle.

[0003] The existing engine suspension bracket is a cast aluminum one-piece structure. When the vehicle is running under sudden speed change conditions such as potholes and curves, the vehicle is affected and shakes upward and downward, causing the vehicle to swing freely upward, affecting the riding comfort of the passengers. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes an engine suspension with limited buffering for commercial vehicles. The technical solution solves the problem that the existing engine suspension bracket in the above background technology is an integrated cast aluminum structure. When the vehicle is running under sudden speed change conditions such as pits and curves, the vehicle is affected and shakes upward and downward, resulting in the vehicle's free upward swing range, affecting the riding comfort of occupants.

[0005] To achieve the above-mentioned purpose, the utility model provides a semi-enclosed limited engine mount for commercial vehicles, comprising a limited cover, a lower frame inside the limited cover, a high-strength rubber body on the surface of the lower frame, and a frame on the surface of the high-strength rubber body;

[0006] The surface of the limit cover is provided with a mounting component;

[0007] The limit cover, the lower frame, the high-strength rubber body, the upper frame and the mounting components are formed in one piece;

[0008] The limit cover, lower frame, high-strength rubber body, upper frame and mounting components are all installed on the frame assembly and connected to the engine. The middle part is a high-strength rubber body that supports the power assembly, reduces the impact of the vibration of the power assembly on the whole vehicle, and limits the swing displacement of the power assembly, thereby improving the NVH performance of the whole vehicle.

[0009] The lower frame, the high-strength rubber body and the upper frame are all vulcanized.

[0010] Optionally, the installation component includes two reserved holes, bolts and positioning pins;

[0011] The bolt and the positioning pin are respectively arranged inside the two openings.

[0012] Optionally, the bottom of the engine suspension is connected by bolts, the bolts are hexagon socket bolts, and the surface of the high-strength rubber body has a limit block.

[0013] Optionally, the surfaces of the upper frame, the lower frame and the high-strength rubber body are all coated with electrophoretic paint.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The present application has a reasonable structure. Through the connecting plates, connecting plates, bolts, positioning pins and limit covers, it can effectively limit the upward and downward shaking of the vehicle, limit the upward free swing range of the vehicle, increase the riding comfort of passengers, and reduce interference or damage to people.

[0016] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 It is a side view structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] In the figure: 1. limit cover; 2. lower frame; 3. high-strength rubber body; 4. upper frame; 5. bolt; 6. positioning pin. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0023] Reference Figure 1-4 As shown, a limited buffer engine mount for commercial vehicles includes a limited cover 1, the inner wall of the limited cover 1 is provided with a lower frame 2, the surface of the lower frame 2 is provided with a high-strength rubber body 3, and the surface of the high-strength rubber body 3 is embedded with an upper frame 4;

[0024] The surface of the limiting cover 1 is provided with a mounting component;

[0025] The limiting cover 1, the lower frame 2, the high-strength rubber body 3, the upper frame 4 and the mounting components are formed in an integrated manner;

[0026] The above-mentioned limit cover 1, lower frame 2, high-strength rubber body 3 upper frame 4 and mounting components are all installed on the frame assembly and connected to the engine, and the middle part is the high-strength rubber body 3 which plays a buffering and bearing role.

[0027] When in use, the lower frame 2, the upper frame 4, the bolts 5, the positioning pins 6 and the limit cover 1 can effectively limit the upward and downward shaking of the vehicle, limit the upward free swing range of the vehicle, increase the riding comfort of the passengers, and reduce interference or damage to people.

[0028] Further, the mounting component includes two openings, a bolt 5 and a positioning pin 6;

[0029] The bolt 5 and the positioning pin 6 are respectively arranged inside the two openings;

[0030] The bottom of the engine suspension is connected by a bolt 5, which is a hexagon socket bolt. The surface of the high-strength rubber body (3) is provided with a limit block. When the vehicle body moves in the Z direction, the limit block on the surface of the high-strength rubber body 3 is used to impact and limit the position. When the vehicle body shakes, the high-strength rubber body 3 is used for buffering.

[0031] Furthermore, the surfaces of the limiting cover 1 , the lower frame 2 and the high-strength rubber body 3 are all provided with electrophoretic paint.

[0032] During the production of this application, the lower frame 2, the upper frame 4 and the high-strength rubber body 3 are vulcanized. After the vulcanization, the surface is provided with electrophoretic paint through an electrophoretic process. Then, the lower frame 2, the upper frame 4, the high-strength rubber body 3 and the limit cover 1 are riveted together by a machine, and finally inspected. After the inspection, they are packaged and shipped.

[0033] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A commercial vehicle limited buffer engine mount, characterized in that: It comprises a limiting cover (1), wherein a lower frame (2) is provided inside the limiting cover (1), a high-strength rubber body (3) is provided on the surface of the lower frame (2), and a frame (4) is provided on the surface of the high-strength rubber body (3); The surface of the limiting cover (1) is provided with a mounting component; The limiting cover (1), the lower frame (2), the high-strength rubber body (3), the upper frame (4) and the mounting components are formed in an integrated manner; The limit cover (1), the lower frame (2), the high-strength rubber body (3), the upper frame (4) and the mounting components are all mounted on the frame assembly and connected to the engine. The middle part is the high-strength rubber body (3) which plays a role in supporting the power assembly, reducing the impact of the vibration of the power assembly on the whole vehicle, limiting the swing displacement of the power assembly, and improving the NVH performance of the whole vehicle. The lower frame (2), the high-strength rubber body (3) and the upper frame (4) are all subjected to high-temperature vulcanization treatment.

2. The engine mount with limited buffer for commercial vehicles according to claim 1, characterized in that: The installation component comprises two reserved holes, a bolt (5) and a positioning pin (6); The bolt (5) and the positioning pin (6) are respectively arranged inside the two openings.

3. The engine mount with limited buffer for commercial vehicles according to claim 2, characterized in that: The bottom of the engine suspension is connected via bolts (5), the bolts (5) are hexagonal bolts, and the surface of the high-strength rubber body (3) is provided with a limit block.

4. The engine mount with limited buffer for commercial vehicles according to claim 1, characterized in that: The surfaces of the upper frame (4), the lower frame (2) and the high-strength rubber body (3) are all coated with low-temperature electrophoretic paint.

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