CN104709061A - Large horse power engine suspension of off-road vehicle - Google Patents

Abstract

The invention relates to a high-horsepower engine mount of an off-road vehicle. Including the front and rear mounts of the engine, the front mount of the engine includes the left and right bracket assemblies of the front mount and the front shock absorber rubber support assembly, and the front shock absorber rubber support assembly is respectively installed on the left and right support assemblies of the front mount ; The rear suspension of the engine includes backing plates, rear suspension left and right bracket assemblies, wedge support assemblies and left and right rear support bracket assemblies, and the rear suspension left and right bracket assemblies are respectively fixed on the corresponding vehicle The rear end of the center plane of the front axle outside the frame, the rear suspension left and right bracket assemblies are all equipped with wedge-shaped support assemblies, and corresponding left and right rear support bracket assemblies are respectively arranged on the wedge-shaped support assemblies. The invention can be firmly fixed on the vehicle frame under the driver's cab, easy to assemble, and has high structural strength and good stability. Moreover, the invention has simple structure, is easy to manufacture, has strong adaptability to manufacturing errors, and is convenient for installing engines with different horsepower.

Description

A high-horsepower engine mount for off-road vehicles

technical field

The invention relates to the field of automobile engine mounts, in particular to a high-horsepower engine mount for off-road vehicles.

Background technique

Existing heavy-duty vehicles are mostly flat cabs, and below the cab are the cooling module and the engine of the car. The cooling module is installed in front of the engine, and the engine is installed on the inside of the vehicle frame below the cab. The suspension of the engine usually adopts the welded slant plate on the front tubular beam to fix the front shock absorber, and the rear suspension of the engine uses castings to connect the inner slope of the frame to fix the rear shock absorber. When a heavy-duty off-road vehicle needs a high-horsepower engine, due to the relatively large shape of the high-horsepower engine, the space for installing the engine inside the frame is limited, and it is easy to cause the rear suspension of the engine to be unable to be installed on the inside of the frame, or the casting of the rear suspension is reduced. The small strength meets the installation, and even the engine cannot be installed, which brings great trouble and difficulty to the engine assembly work. As a result, work delays and delays are caused, and economic losses are brought to automobile manufacturers.

The front suspension of the current heavy-duty off-road vehicle engine mostly uses a tubular beam, and the rear suspension has a built-in casting inside the frame to install the engine. When the off-road vehicle needs a high-horsepower engine, this structure appears to be short of installation space and insufficient. The disadvantages of this structure are:

(1) The processing error of the curved pipe beam in the tubular beam is large, and it is difficult for the inspector to check the exact size of the finished product, which may easily lead to improper assembly of the engine;

(2) The welding of the inclined plate in the tubular beam is difficult to be accurate and difficult to manufacture;

(3) The installation space of the engine between the frames under the cab is narrow, and it is very difficult to use castings.

And if the engine of different horsepower is replaced in the same model, the engine mount cannot be used universally, and the degree of universality is low.

Contents of the invention

The invention provides a high-horsepower engine mount for off-road vehicles with strong versatility, easy manufacture, simple installation, low cost and good stability.

The present invention is achieved through the following technical solutions:

A high-horsepower engine mount for an off-road vehicle, including front and rear mounts of the engine, the front mount of the engine includes a front mount left and right bracket assembly and a front shock absorbing rubber support assembly, and the front mount left and right brackets The assemblies are respectively fixed on the front end of the center plane of the front axle inside the corresponding vehicle frame, and the front shock-absorbing rubber support assembly is respectively installed on the front suspension left and right bracket assemblies; the rear suspension of the engine includes a backing plate, a rear suspension left , right bracket assembly, wedge support assembly and left and right rear support bracket assemblies, rear suspension left and right bracket assemblies are respectively fixed at the rear end of the center plane of the front axle on the outside of the corresponding frame, rear suspension left, right A wedge-shaped support assembly is installed on the right support assembly, and corresponding left and right rear support bracket assemblies are respectively arranged on the wedge-shaped support assembly.

The invention includes front suspension left and right bracket assemblies, front shock absorbing rubber support assembly, backing plate, rear suspension left and right bracket assemblies, wedge support assembly and left and right rear support bracket assemblies. The left and right bracket assemblies of the front suspension are welded by ordinary steel plates of different specifications. Fix the front damping rubber support assembly with bolts on the assembly, and then fix the bracket at the front of the engine with bolts to complete the installation and fixation of the front suspension of the engine; the backing plate is made of ordinary 6mm steel plate, and the rear suspension left and right The component, left and right rear support bracket assemblies are all welded by ordinary steel plates of different specifications. The left and right bracket assemblies are installed with wedge-shaped support assemblies through bolts, and the left and right rear support bracket assemblies are installed with bolts on the wedge-shaped support assemblies, and then the brackets at the rear of the engine are fixed with bolts and nuts to complete the rear suspension of the engine. The installation and fixing of the position are completed, thereby completing the installation and fixing of the high-horsepower engine.

In order to adapt to the installation of engines with different horsepower, standard parts are used to install the front and rear mounts of the engine. The installation is fixed.

In order to solve the installation space of the high-horsepower engine and simplify the assembly, the rear suspension of the engine is installed and fixed by connecting bolts and nuts to the outside of the frame.

For a stable and reliable structure, the left and right bracket assemblies of the front suspension, the left and right bracket assemblies of the rear suspension, and the left and right rear support bracket assemblies are all made of thick steel plates bent and welded, and there are many places in the assembly. Reinforcing ribs are added, in which the left and right bracket assemblies of the rear suspension both include L-shaped bent steel plates, and two ribs are welded on the L-shaped bent steel plates; the left and right bracket assemblies of the front suspension include two different bent steel plates. A curved steel plate and a rib plate located between the two steel plates, the steel plate and the rib plate are integrated by welding; the left and right rear support bracket assemblies each include a vertical plate and a flat plate, the flat plate is welded to the vertical plate, Ribs are welded between the flat plate and the vertical plate, the flat plate straddles the vehicle frame, the vertical plate is located on the inner side of the vehicle frame, the screw holes on the vertical plate correspond to the screw holes on the left and right bracket assemblies of the corresponding rear suspension, Both the front shock-absorbing rubber support assembly and the wedge-shaped support assembly adopt the existing mature batch products. Among them, the wedge-shaped support assembly includes a V-shaped block and a V-shaped groove matching the V-shaped block, a V-shaped block and an insert The V-shaped tank body is fixed by long bolts, nuts and rectangular washers, and a compressible V-shaped rubber block is arranged between the V-shaped block and the V-shaped tank body. The front shock-absorbing rubber support assembly is composed of two bent steel plates, a compressible rubber block, a positioning pin, three special nuts, and three conical plugs. The two steel plates are inserted to form a rectangular structure. The two steel plates can be set Compressed rubber blocks.

In order to facilitate processing and manufacture, each of the front suspension left bracket assembly and front suspension right bracket assembly, the rear suspension left bracket assembly, the rear suspension right bracket assembly, and the left rear support bracket assembly and the right rear support bracket assembly are symmetrical to the center plane of the vehicle, and each assembly is completed by welding.

In order to facilitate the acquisition of materials and reduce manufacturing costs, each single piece of the front suspension left and right bracket assembly, the rear suspension left and right bracket assembly and the left and right rear support bracket assembly is made of ordinary steel plates .

Each of the assembly connections described above is fixed by bolts and nuts of different types, which is simple to assemble, easy to disassemble, and has good stability. The materials selected for each bracket assembly are steel plates, which are low in cost and good in versatility.

Beneficial effects of the present invention: the present invention adopts the left and right bracket assemblies of the front mount and two front shock absorbing rubber support assemblies to form the front mount of the engine. Two backing plates, rear suspension left and right bracket assemblies, two wedge support assemblies and left and right rear support bracket assemblies form the engine rear suspension. The front mount of the engine is fixed on the inner side of the frame by bolts and nuts, and the rear mount of the engine is fixed on the outside of the frame by bolts and nuts. Hoist the engine and fix it with bolts. The invention can be firmly fixed on the vehicle frame under the driver's cab, easy to assemble, and has high structural strength and good stability. Moreover, the invention has simple structure, is easy to manufacture, has strong adaptability to manufacturing errors, and is convenient for installing engines with different horsepower.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Accompanying drawing 1 is the schematic diagram of engine mount of the present invention;

In the figure: 1 vehicle frame, 2 front suspension left bracket assembly, 3 front suspension right bracket assembly, 4 front shock absorbing rubber support assembly, 5 left rear support bracket assembly, 6 right rear support bracket assembly 7, rear suspension left bracket assembly, 8 rear suspension right bracket assembly, 9 wedge support assembly, 10 backing plate, 11 bolts, 12 nuts.

Detailed ways

A specific embodiment as shown in Figure 1, including front suspension left bracket assembly 2, front suspension right bracket assembly 3, left rear support bracket assembly 5, right rear support bracket assembly 6, rear The suspension left bracket assembly 7, the rear suspension right bracket assembly 8, and the backing plate 10 are all bent and welded steel plates of different specifications, and the front shock absorbing rubber support assembly 4 and the wedge support assembly 9 are all existing Mature batch products.

The front suspension left bracket assembly 2 and the front suspension right bracket assembly 3 are symmetrical about the center plane of the vehicle, and each assembly is welded by two bent steel plates and a middle rib plate.

The front suspension of the engine is connected to the vehicle frame 1, the left front suspension bracket assembly 2, the right front suspension bracket assembly 3 and the front shock absorbing rubber support assembly 4 by bolts 11 and nuts 12 to complete the installation.

Left rear support bracket assembly 5, right rear support bracket assembly 6, rear suspension left support assembly 7, rear suspension right support assembly 8 are symmetrical about the center plane of the vehicle, left rear support bracket assembly 5 and the right rear support bracket assembly 6 all include a vertical plate and a flat plate, the flat plate is welded to the vertical plate, a reinforcing rib is welded between the flat plate and the vertical plate, the flat plate straddles the vehicle frame 1, and the vertical plate is located on the vehicle frame 1, the screw holes on the vertical plate are corresponding to the screw holes on the corresponding rear suspension left and right bracket assemblies 7,8, and the vertical plate, flat plate, and reinforcing rib are respectively three thick steel plates with size specifications.

Both the rear suspension left bracket assembly 7 and the rear suspension right bracket assembly 8 are welded by an L-shaped steel plate and two triangular reinforcing ribs made of common steel plates.

The rear mount of the engine is connected with the backing plate 10, the vehicle frame 1, the left rear mount bracket assembly 7, the right rear mount bracket assembly 8, the wedge support assembly 9 and the left rear support bracket assembly through bolts 11 and nuts 12 5. The installation of the right rear support bracket assembly 6 is completed.

Production method: firstly make two bent steel plates and a middle stiffener plate in the left and right bracket assemblies of the front suspension according to the size requirements, and then weld the left bracket assembly 2 of the front suspension and the front suspension bracket assembly 2 sequentially according to the size requirements Set the right bracket assembly 3; then make three thick steel plates, one L-shaped steel plate, and two triangular reinforcing ribs in the left and right rear support bracket assemblies and the rear suspension left and right bracket assemblies according to the size requirements , weld the above three thick steel plates to complete the left rear support bracket assembly 5 and the right rear support bracket assembly 6, and then weld an L-shaped steel plate and two triangular ribs to complete the rear suspension left bracket assembly 7 and rear suspension Set the right bracket assembly 8; finally complete the manufacture of the front and rear suspensions of the engine through a series of bolts 11 and nuts 12 of different specifications.

How to use: First install the left and right rear support bracket assemblies on the engine flywheel housing through bolts, and install the front shock absorbing rubber support assembly 4 on the front suspension left bracket assembly 2 or the front suspension right bracket assembly through bolts. On the bracket assembly 3, the front suspension of the engine is fixed on the inner side of the frame 1 under the driver's cab through bolts and nuts, and then the wedge-shaped support assembly 9 is respectively installed on the rear suspension left bracket assembly 7 or the rear suspension assembly through bolts. On the right bracket assembly 8, fix the backing plate 10 and the rear suspension of the engine on the outside of the vehicle frame 1 below the cab through bolts and nuts, and lift the engine so that the left rear support bracket assembly 5 or the right rear support bracket The bolt mounting holes on the assembly 6 are aligned with the mounting holes of the wedge-shaped support assembly 9 on both sides of the frame 1, and the bolts are screwed on, but not tightened tightly, and then the engine is slowly lowered so that the holes on the engine front suspension bracket are aligned with the front shock absorber. Vibrate the holes on the rubber support assembly 4 and screw on the bolts. When there are no problems in the mounting holes, the bolts can be tightened to complete the installation and fixing of the engine.

The present invention proposes a novel solution for the disadvantages of existing high-horsepower engine mounts of off-road vehicles, such as narrow assembly space, complex and cumbersome mount structures, difficult assembly, and high manufacturing process requirements: the frame assembly under the chassis cab of off-road vehicles The inner side and the outer inclined side of the high-horsepower engine are connected by a series of bolts and nuts to the front suspension left bracket assembly 2 or the front suspension right bracket assembly 3, the front shock absorbing rubber support assembly 4, the backing plate 10, the rear Mount left bracket assembly 8 or rear mount right bracket assembly 8, wedge support assembly 9, left rear support bracket assembly 5 or right rear support bracket assembly 6 and other components to complete the engine mount installation, Lift the high-horsepower engine again, fix the bolts and nuts on the front shock-absorbing rubber support assembly 4 and the wedge-shaped support assembly 9, and complete the installation of the engine. The connection form is simple, the stability is good, the assembly is simple, the disassembly and replacement are convenient, the cost is low, and the versatility is good.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. a high-horsepower engine mount for off-road vehicles, including engine front and rear mounts, is characterized in that: engine front mounts include front mount left and right bracket assemblies and front shock-absorbing rubber support assemblies, and front mounts The left and right bracket assemblies are respectively fixed on the front end of the center plane of the front axle inside the corresponding vehicle frame, and the front suspension rubber support assembly is respectively installed on the left and right bracket assemblies of the front suspension; the rear suspension of the engine includes a backing plate, Rear suspension left and right bracket assembly, wedge support assembly and left and right rear support bracket assembly, rear suspension left and right bracket assembly are respectively fixed on the rear end of the center plane of the front axle on the outside of the corresponding frame, A wedge-shaped support assembly is installed on the suspension left and right bracket assemblies, and corresponding left and right rear support bracket assemblies are respectively arranged on the wedge-shaped support assembly. 2. The off-road vehicle high-horsepower engine mount according to claim 1 is characterized in that: the left bracket assembly of the front suspension and the right bracket assembly of the front suspension, the left bracket assembly of the rear suspension and the right bracket of the rear suspension The assembly, the left rear support bracket assembly and the right rear support bracket assembly are all left-right symmetrical about the center plane of the vehicle. 3. The off-road vehicle high-horsepower engine mount according to claim 1 or 2, characterized in that: the left and right bracket assemblies of the front mount all include two steel plates with different bending forms and a reinforcing rib in the middle of the two steel plates The plate, the steel plate and the stiffener plate are integrated by welding. 4. The off-road vehicle high-horsepower engine mount according to claim 3, characterized in that: the front shock-absorbing rubber support assembly includes two bent steel plates, the two steel plates are plugged to form a rectangular structure, and the two steel plates are provided with compressible rubber piece. 5. The off-road vehicle high-horsepower engine mount according to claim 4, characterized in that: the left and right bracket assemblies of the rear mount all include L-shaped bent steel plates, and two reinforcing ribs are welded on the L-shaped bent steel plates. 6. The off-road vehicle high-horsepower engine mount according to claim 5, characterized in that: the wedge-shaped support assembly includes a V-shaped block and a V-shaped groove that is compatible with the V-shaped block, and the V-shaped block and the inserted V-shaped The tank body is fixed, and a compressible V-shaped rubber block is arranged between the V-shaped block and the V-shaped tank body. 7. The off-road vehicle high-horsepower engine mount according to claim 6, characterized in that: the left and right rear support bracket assemblies all include a vertical plate and a flat plate, the flat plate is welded to the vertical plate, and the flat plate and the vertical plate Reinforcing ribs are welded between them, the flat plate straddles the vehicle frame, the vertical plate is positioned at the inner side of the vehicle frame, and the screw holes on the vertical plate correspond to the screw holes on the corresponding rear suspension left and right bracket assemblies. 8. The off-road vehicle high-horsepower engine mount according to claim 7, characterized in that: the backing plate is a rectangular 6mm steel plate equipped with mounting holes.