CN107933236A - A kind of heavy-duty truck balance shaft support - Google Patents

Abstract

The invention provides a heavy-duty truck balance shaft bracket, belonging to the technical field of heavy-duty truck balance suspension. Its technical solution is: a balance shaft support for heavy-duty trucks, which includes a frame connecting part, a load-bearing support structure arranged on one side of the frame connecting part, and an axle housing arranged at the connection between the frame connecting part and the load-bearing support structure The installation assembly, and the thrust rod installation support structure arranged at the bottom of the axle housing installation assembly. The beneficial effects of the present invention are: the outer surface of the present invention is a connecting plate in the shape of a convex arc surface, the hollow load-bearing support shell of the load-bearing support structure, the concave connector, the inner load-bearing block and the wing-shaped support, and the axle housing installation assembly The load on the thrust rod can be transmitted to the upper part of the balance shaft bracket, so as to avoid deformation of the thrust rod installation support and make the overall force of the balance shaft bracket more balanced.

Description

A heavy-duty truck balance shaft bracket

technical field

The invention relates to the technical field of balance suspension of heavy-duty trucks, in particular to a balance shaft bracket of heavy-duty trucks.

Background technique

Due to the heavy load and complex road conditions, heavy-duty trucks usually adopt a double rear axle design. The balance shaft is installed between the two rear axles to balance the load on the two axles and reduce the rolling force of the vehicle. The balance shaft bracket is the main load-bearing structure of the balance shaft, and whether its structure is reasonable or not directly affects the safety and stability of the balance shaft. At present, the balance shaft of heavy-duty trucks is mainly divided into two types: one is an integral balance shaft, and the other is a disconnected balance shaft. Among them, the integral balance shaft bracket is not only expensive to manufacture and not easy to maintain later, but also has a large dead weight, which reduces the carrying capacity of the vehicle. At the same time, due to the harsh working environment and heavy load of heavy-duty trucks, if the structural design of the disconnected balance shaft bracket is unreasonable, it will cause unbalanced stress on the bracket, causing deformation, tearing and other forms of damage to the balance shaft bracket.

Contents of the invention

The purpose of the present invention is to further improve the reliability of the balance shaft, redesign the disconnected balance shaft support structure, and provide a heavy-duty truck balance shaft support. The overall force of the heavy-duty truck balance shaft support is balanced and can Effectively reduce stress concentration, reduce manufacturing cost and use cost, improve the reliability of the balance shaft and the safety of the heavy-duty truck.

The present invention is achieved through the following measures: a heavy-duty truck balance shaft bracket, the balance shaft bracket has two front reinforcing ribs at the front part, a process hole, the front reinforcing rib is connected to the frame connecting part from the bottom, and the frame connecting part There are three sets of countersunk screw mounting holes and six sets of bolt mounting holes; there is a side rib on each side of the balance shaft bracket, and the bottom of the side rib is connected to the thrust rod mounting support; there is a bottom in the middle of the thrust rod mounting support at the bottom of the balance shaft bracket Reinforcing ribs; there are eight bolt connection holes in the crossbeam connection part of the balance shaft bracket, and there are one process long hole on the left and right sides of the lower part of the crossbeam connection part. The crossbeam connection part is connected with the frame connection part through the transition boss, and There is an internal reinforcing rib inside, two rear reinforcing ribs at the rear of the balance shaft support, and a side rear reinforcing rib on the left and right sides, and the side rear reinforcing ribs run from the bottom to the top of the balance shaft support.

A heavy-duty truck balance shaft bracket, which includes a frame connection part, a load-bearing support structure arranged on one side of the frame connection part, and a shaft arranged at the connection between the frame connection part and the load-bearing support structure The shell mounting assembly, and the thrust rod mounting support structure arranged at the bottom of the shaft shell mounting assembly.

The connecting part of the vehicle frame is in a concave shape, which includes a connecting plate, fixed fins arranged at both ends of the connecting plate, several bolt fixing holes arranged on the fixed fins, each of the fixed fins Each is provided with an L-shaped notch, and the plurality of bolt fixing holes are equidistantly arranged around the L-shaped notch.

There is a circular arc transition connection between the fixed fin plate and the connecting plate, and the outer surface of the connecting plate is in the shape of a convex arc surface.

The load-bearing support structure includes a hollow load-bearing support shell, which is arranged on a concave connector at the top of the hollow load-bearing support shell, and an inner bearing block that runs through the hollow load-bearing support shell and the concave connector, and is arranged on Wing-shaped supports on both sides of the hollow bearing support shell, and a hollow shaft passing through the hollow load bearing support shell and having an axis parallel to the axis of the bolt fixing hole.

The shaft housing installation assembly is composed of a shaft housing mounting frame, a shaft housing end cover arranged at the front end of the shaft housing mounting frame, and communicated with the hollow shaft, and a shaft housing body arranged above the shaft housing end cover and composite bushings.

The thrust rod mounting support structure includes a vertical fixing plate connected to the shaft housing mounting frame, an arc-shaped curved connecting plate arranged on one side of the vertical fixing plate, and a connecting plate respectively arranged on the vertical fixing plate. The thrust rod installation support at the bottom of the plate and the arc-shaped curved surface connection plate is a hollow cylindrical sleeve.

A lightening hole is also opened on the hollow bearing support shell, the lightening hole is notch-shaped, and its two corresponding sides are parallel to the top surface of the concave connector; Several connection holes are provided.

The side of the arc-shaped curved surface connecting plate abutting against the end cover of the axle housing is a concave arc-shaped curved surface.

The shaft housing body is composed of a transverse shaft plate whose bottom surface is fixedly connected to the top surface of the shaft housing end cover, and convex baffles fixedly connected to both ends of the transverse shaft plate.

The connection between the vertical fixing plate and the arc-shaped curved surface connection plate is a circular arc transition connection, and an oblong hole is opened at the connection between the vertical fixing plate and the arc-shaped curved surface connection plate.

In order to better achieve the purpose of the above invention, the present invention provides a balance shaft bracket for heavy-duty trucks. Specifically, the front end of the balance shaft bracket is provided with two front reinforcing ribs, and a process hole is opened. The front reinforcement The ribs are connected to the frame connecting part from the bottom, and there are three sets of countersunk head screw mounting holes and six sets of hexagon head bolt mounting holes on the frame connecting part;

The two sides of the balance shaft bracket are respectively provided with a side reinforcing rib, and the bottom of the side reinforcing rib is connected to the thrust rod mounting support;

The bottom reinforcing rib is arranged in the middle of the thrust rod mounting support at the bottom of the balance shaft bracket;

The crossbeam connection part of the balance shaft bracket is provided with eight bolt connection holes, and the left and right sides of the bottom of the crossbeam connection part are each provided with a process long hole, and the crossbeam connection part is connected with the vehicle frame through a transitional boss The parts are connected, and an inner reinforcing rib is provided inside the connecting part of the beam;

The rear part of the balance shaft bracket is provided with two rear reinforcing ribs, and the left and right sides are respectively provided with a side rear reinforcing rib, and the side rear reinforcing ribs penetrate from the bottom to the top of the balance shaft support.

The beneficial effects of the present invention are: the outer surface of the present invention is a connecting plate in the shape of a convex arc surface, the hollow load-bearing support shell of the load-bearing support structure, the concave connector, the inner bearing block and the wing-shaped support, and the shaft shell installation assembly The load on the thrust rod can be transmitted to the upper part of the balance shaft bracket, avoiding the deformation of the thrust rod mounting support, so that the overall force of the balance shaft bracket is more balanced; the vertical fixing plate of the thrust rod mounting support structure has an arc surface The connecting plate, the thrust rod installation support, and the inner bearing block passing through the hollow load-bearing support shell and the concave connector make the balance shaft support local force more uniform, which can effectively reduce stress concentration and improve the reliability of the balance shaft. performance and vehicle safety; the weight-reducing holes on the hollow load-bearing support shell and the connection holes on the concave connectors can not only reduce the weight of the balance shaft bracket, but also help to realize lightweight design, and can reduce the The risk of process defects such as shrinkage cavity and shrinkage porosity reduces the manufacturing cost; in addition, it is also conducive to the maintenance of the balance shaft in the later stage, reducing the use cost.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the embodiment of the present invention.

Fig. 3 is a front view of the embodiment of the present invention.

Fig. 4 is a rear view of Fig. 3 .

Fig. 5 is a schematic diagram of the overall structure of the embodiment of the present invention.

FIG. 6 is a top view of FIG. 3 .

Fig. 7 is a left view of Fig. 3 .

Fig. 8 is a schematic cross-sectional structure diagram of the balance shaft bracket of the present invention after assembly.

Wherein, the reference signs are: 1. frame connecting part; 10. connecting plate; 11. fixed fin plate; 12. bolt fixing hole; 13. L-shaped notch; 2. load-bearing support structure; 20. hollow-shaped load-bearing support Shell; 21. Concave connector; 22. Inner bearing block; 23. Wing support; 24. Hollow shaft; 3. Shaft housing mounting assembly; 30. Shaft housing mounting frame; Shaft shell body; 320, transverse shaft plate; 321, convex baffle; 33, composite bushing; 4, thrust rod installation support structure; 40, vertical fixing plate; 41, arc-shaped curved surface connecting plate; 42, thrust Rod mounting support; 200, lightening hole; 210, connecting hole.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.

Referring to Fig. 1 to Fig. 8, the present invention is: a heavy-duty truck balance shaft bracket, which includes a frame connection part, a load-bearing support structure arranged on one side of the frame connection part, and a load-bearing support structure arranged between the frame connection part and the load-bearing support The shaft housing installation assembly at the structural connection, and the thrust rod installation support structure arranged at the bottom of the shaft housing installation assembly.

The connecting part of the frame is in a concave shape, which includes a connecting plate, fixed fins arranged at both ends of the connecting plate, several bolt fixing holes arranged on the fixed fins, and each fixed fin is provided with an L-shaped notch , several bolt fixing holes are equidistantly arranged around the L-shaped notch.

There is a circular arc transition connection between the fixed fin plate and the connecting plate, and the outer surface of the connecting plate is in the shape of a convex arc surface.

The load-bearing support structure includes a hollow load-bearing support shell, which is arranged on a concave connector on the top of the hollow-shaped load-bearing support shell, and an inner bearing block that runs through the hollow load-bearing support shell and the concave-shaped connector, and is set on both sides of the hollow load-bearing support shell The wing-shaped support piece, and the hollow shaft that runs through the hollow load-bearing support shell and whose axis is parallel to the axis of the bolt fixing hole.

The shaft housing installation assembly is composed of a shaft housing mounting frame, a shaft housing end cover arranged at the front end of the shaft housing mounting frame and connected to the hollow shaft, a shaft housing body and a composite bushing arranged above the shaft housing end cover.

The thrust rod installation support structure includes a vertical fixing plate connected to the shaft housing mounting frame, an arc-shaped curved connecting plate arranged on one side of the vertical fixed plate, and the bottom of the vertical fixed plate and the arc-shaped curved connecting plate respectively The thrust rod mounting support is a hollow cylindrical sleeve.

The hollow load-bearing supporting shell is also provided with a weight-reducing hole, the weight-reducing hole is in the shape of a notch, and its two corresponding sides are parallel to the top surface of the concave connector; the concave connector is provided with several connection holes.

The side of the arc-shaped curved surface connecting plate abutting against the end cover of the shaft housing is a concave arc curved surface.

The shaft housing body consists of a transverse shaft plate whose bottom surface is fixedly connected to the top surface of the shaft housing end cover, and convex baffles fixedly connected to both ends of the transverse shaft plate.

The joint between the vertical fixing plate and the arc-shaped curved surface connecting plate is a circular arc transition connection, and an oblong hole is opened at the joint between the vertical fixing plate and the arc-shaped curved surface connecting plate.

The undescribed technical features of the present invention can be realized by or using the prior art, and will not be repeated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Those of ordinary skill in the art Changes, modifications, additions or substitutions made within the essential scope of the present invention shall also belong to the protection scope of the present invention.

Claims (10)

1. A heavy-duty truck balance shaft bracket, characterized in that it includes a frame connecting part (1), a load-bearing support structure (2) arranged on one side of the frame connecting part (1), and a load-bearing support structure (2) arranged on the vehicle A shaft housing installation assembly (3) at the connection between the frame connecting part (1) and the bearing support structure (2), and a thrust rod installation support structure (4) arranged at the bottom of the shaft housing installation assembly (3). 2. The heavy-duty truck balance shaft bracket according to claim 1, characterized in that, the frame connecting part (1) is in a concave shape and includes a connecting plate (10), which is arranged on the connecting plate (10) The fixed fins (11) at both ends are provided with several bolt fixing holes (12) on the fixed fins (11), and each of the fixed fins (11) is provided with an L-shaped notch ( 13), the plurality of bolt fixing holes (12) are equidistantly arranged around the L-shaped notch (13). 3. The heavy-duty truck balance shaft bracket according to claim 1 or 2, characterized in that there is a circular arc transition connection between the fixed fin (11) and the connecting plate (10), and the connection The outer surface of the plate (10) is in the shape of a convex arc. 4. The heavy-duty truck balance shaft bracket according to any one of claims 1-3, characterized in that, the load-bearing support structure (2) includes a hollow load-bearing support shell (20), which is arranged in the hollow-shaped The concave connector (21) on the top of the bearing supporting shell (20) runs through the inner bearing block (22) of the hollow bearing supporting housing (20) and the concave connector (21), and is set on the hollow Wing-shaped supports (23) on both sides of the load-bearing support shell (20), and a hollow shaft (24) that passes through the hollow load-bearing support shell (20) and whose axis is parallel to the axis of the bolt fixing hole (12) ). 5. The heavy-duty truck balance shaft bracket according to any one of claims 1-4, characterized in that, the axle housing installation assembly (3) is an axle housing mounting frame (30), which is arranged on the axle housing The front end of the installation frame (30), the shaft housing end cover (31) communicating with the hollow shaft (24), the shaft housing body (32) and the composite bushing arranged above the shaft housing end cover (31) (33). 6. The heavy-duty truck balance shaft bracket according to any one of claims 1-5, characterized in that, the thrust rod mounting support structure (4) includes a shaft housing mounting bracket (30) connected a vertical fixing plate (40), an arc-shaped curved connecting plate (41) arranged on one side of the vertical fixing plate (40), and an arc-shaped connecting plate respectively arranged on the vertical fixing plate (40) and the curved curved connecting plate (41) The bottom thrust rod mounting support (42), the thrust rod mounting support (42) is a hollow cylindrical sleeve; The connection between the vertical fixing plate (40) and the arc-shaped connecting plate (41) is an arc transition connection, and the connection between the vertical fixing plate (40) and the arc-shaped connecting plate (41) There is a long round hole. 7. The heavy-duty truck balance shaft bracket according to any one of claims 1-6, characterized in that, a weight-reducing hole (200) is opened on the hollow bearing support shell (20), and the light-reducing hole (200) The heavy hole (200) is notch-shaped, and its two corresponding sides are parallel to the top surface of the concave connector (21); several connection holes (210) are opened on the concave connector (21). 8. The heavy-duty truck balance shaft bracket according to any one of claims 1-7, characterized in that, the side of the arc-shaped curved surface connecting plate (41) abutting against the axle housing end cover (31) is concave arc surface. 9. The heavy-duty truck balance shaft bracket according to any one of claims 1-8, characterized in that, the axle housing body (32) is fixedly connected to the top surface of the axle housing end cover (31) by the bottom surface The transverse shaft plate (320) is composed of convex baffles (321) fixedly connected to both ends of the transverse shaft plate (320). 10. A heavy-duty truck balance shaft bracket as claimed in any one of claims 1-9, characterized in that, the front end of the balance shaft bracket is provided with two front reinforcing ribs, and a process hole is provided, and the The front reinforcing rib is connected to the frame connection part from the bottom, and the frame connection part has three sets of countersunk head screw mounting holes and six sets of hexagonal head bolt mounting holes; The two sides of the balance shaft bracket are respectively provided with a side reinforcing rib, and the bottom of the side reinforcing rib is connected to the thrust rod mounting support; The bottom reinforcing rib is arranged in the middle of the thrust rod mounting support at the bottom of the balance shaft bracket; The crossbeam connection part of the balance shaft bracket is provided with eight bolt connection holes, and the left and right sides of the bottom of the crossbeam connection part are each provided with a process long hole, and the crossbeam connection part is connected with the vehicle frame through a transitional boss The parts are connected, and an inner reinforcing rib is provided inside the connecting part of the beam; The rear part of the balance shaft bracket is provided with two rear reinforcing ribs, and the left and right sides are respectively provided with a side rear reinforcing rib, and the side rear reinforcing ribs penetrate from the bottom to the top of the balance shaft support.