Integral arrangement structure of hydraulic retarder on automobile

Abstract

The utility model discloses an integral arrangement structure of a hydraulic retarder on an automobile. Reinforcing plates are respectively arranged at proper positions on the inner sides of the middle sections of a left longitudinal beam and a right longitudinal beam of a frame assembly. The support assemblies are installed on the inner sides of the reinforcing plates installed on the left longitudinal beam and the right longitudinal beam of the frame assembly respectively. And a buffer rubber pad is arranged on each of the bracket assemblies on the left side and the right side. The two ends of the supporting cross beam assembly are installed on the buffering rubber pads on the left side and the right side, the transmission case assembly is hung below the supporting cross beam assembly, and the retarder is installed on the left rear side of the transmission case assembly. The front transmission shaft is installed and connected between the transmission output shaft and the main shaft of the transmission box assembly. And the rear transmission shaft is mounted and connected between the input shaft of the rear drive axle and the main shaft of the transmission case assembly. According to the overall arrangement scheme of the hydraulic retarder on the automobile, on the premise that the requirement for retarding and braking of the hydraulic retarder is met, negative effects on running of the whole automobile are avoided, and the overall arrangement scheme can be widely applied to the hydraulic retarder on a truck.

Description

Technical Field

[0001] The utility model relates to the technical field of truck manufacturing, in particular to an overall arrangement structure of a hydraulic retarder on a truck. Background Art

[0002] The function of the automobile hydraulic retarder is to enable the retarder when the car is decelerating or going down a long slope, so that the car can decelerate smoothly and avoid the wear and heat of the brake parts caused by the use of brakes. The hydraulic retarder is a device that uses liquid damping to produce a retarding effect, thereby slowing down the vehicle. Installing a hydraulic retarder in the transmission system of a truck has become an urgent need for truck manufacturers and users. However, most truck transmissions currently do not have a special installation interface reserved for the hydraulic retarder. How to arrange and install the hydraulic retarder in the transmission system between the transmission output shaft and the rear drive axle has become a problem that must be faced by automobile hydraulic retarder manufacturers, automobile modification factories and even automobile manufacturers. However, since the car is a high-speed machine, the transmission shaft in the automobile transmission system has a high speed and is equipped with a cross-axis universal joint. The solution of arranging and installing the hydraulic retarder in the transmission system between the transmission output shaft and the rear drive axle is a comprehensive technical problem. If the arrangement is not good, it will inevitably cause vibration and noise when the car is driving, which will lead to the failure of the solution. Summary of the invention

[0003] In order to overcome the above problems of the prior art, the utility model proposes an overall arrangement structure of a hydraulic retarder on a vehicle.

[0004] The utility model is implemented by the following technical scheme: an overall arrangement structure of a hydraulic retarder on a car, comprising a rear drive axle, a rear transmission shaft, a hydraulic retarder, a reinforcement plate, a supporting crossbeam assembly, a transmission box assembly, a front transmission shaft, a frame assembly, a transmission, a bracket assembly and a buffer rubber pad assembly, wherein a reinforcement plate is respectively installed at a suitable position on the inner side of the middle section of the left longitudinal beam and the right longitudinal beam of the frame assembly, a bracket assembly is respectively installed on the inner side of the reinforcement plate installed on the left longitudinal beam and the right longitudinal beam of the frame assembly, a buffer rubber pad assembly is respectively installed on the left and right bracket assemblies, two ends of the supporting crossbeam assembly are installed on the buffer rubber pad assemblies on the left and right sides, and the transmission box assembly is hoisted below the supporting crossbeam assembly.

[0005] Preferably, the hydraulic retarder is installed on the left rear side of the transmission case assembly.

[0006] Preferably, a large gear, an intermediate gear and a small gear are provided in the transmission box assembly, the large gear is connected to the main shaft through a spline, and the small gear is connected to the hydraulic retarder shaft through a spline.

[0007] Preferably, a flange is installed at the front end of the main shaft of the transmission box assembly, and a telescopic front drive shaft with cross-type universal joints at the front and rear is installed and connected between the flange on the transmission output shaft and the flange at the front end of the main shaft of the transmission box assembly.

[0008] Preferably, the center lines of the front drive shaft, the main shaft of the transmission box assembly and the transmission output shaft are in a straight line, and have an angle α tilted backward and downward with the upper wing surface of the frame assembly to meet the layout requirements of the engine and transmission on the vehicle.

[0009] Preferably, a flange is installed at the rear end of the main shaft of the transmission box assembly, and a telescopic rear drive shaft with cross-type universal joints at the front and rear is installed and connected between the flange on the input shaft of the rear drive axle and the flange at the rear end of the main shaft of the transmission box assembly.

[0010] Preferably, the angle β2 between the center line of the main shaft of the transmission box assembly and the center line of the rear drive shaft is equal to the angle β1 between the center line of the rear drive shaft and the center line of the rear drive axle input shaft, and the universal joint active fork at the front end of the rear drive shaft and the universal joint driven fork at the rear end of the rear drive shaft are in the same plane.

[0011] The utility model provides a solution for the overall arrangement structure of a hydraulic retarder on a vehicle without causing negative impact on the driving of the whole vehicle under the premise of satisfying the hydraulic retarder braking function, and can be widely used in the installation and arrangement of the hydraulic retarder on a truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a right view of the overall structural schematic diagram of the utility model, that is, a view projected from right to left in the direction of the vehicle's travel.

[0013] Figure 2 It is the overall structural diagram of the utility model Figure 1 AA section view.

[0014] In the figure: 1-rear drive axle, 2-rear transmission shaft, 3-hydraulic retarder, 4-reinforcement plate, 5-support beam assembly, 6-transmission box assembly, 7-front transmission shaft, 8-frame assembly, 9-transmission, 10-bracket assembly, 11-buffer rubber pad assembly. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model.

[0016] The following is a detailed description with reference to the accompanying drawings. Figures 1-2As shown, the mounting base of the device, the frame assembly 8, is indicated by a double-dotted line and is made transparent. The overall arrangement scheme of the hydraulic retarder provided by the utility model on the automobile is as follows: a reinforcing plate 4 is installed at a suitable position on the inner side of the middle section of the left longitudinal beam and the right longitudinal beam of the frame assembly 8. A bracket assembly 10 is installed on the inner side of the reinforcing plate 4 installed on the left longitudinal beam and the right longitudinal beam of the frame assembly 8 and the left longitudinal beam and the right longitudinal beam of the frame assembly 8. A buffer rubber pad assembly 11 is installed on the bracket assembly 10 on the left side; similarly, a buffer rubber pad assembly 11 is installed on the bracket assembly 10 on the right side. The two ends of the supporting crossbeam assembly 5 are installed on the buffer rubber pad assemblies 11 on the left and right sides, and the transmission box assembly 6 is hoisted under the supporting crossbeam assembly 5. Supporting the automobile hydraulic retarder and the transmission box assembly with a buffer rubber pad can greatly reduce the vibration and noise generated by the installation of the hydraulic retarder in the transmission system. The hydraulic retarder 3 is installed on the left rear side of the transmission box assembly 6. A large gear, an intermediate gear and a small gear are arranged in the transmission box assembly 6. The large gear is connected to the main shaft through a spline, and the small gear is connected to the hydraulic retarder 3 shaft through a spline. The transmission of the large gear and the small gear can increase the rotation speed of the hydraulic retarder 3 shaft, obtain a larger braking torque with a smaller turbine diameter, and thus reduce the total mass and volume of the hydraulic retarder 3 under the premise of the same braking torque. The intermediate gear can increase the center distance between the hydraulic retarder 3 shaft and the automobile transmission shaft, which provides convenience for the installation and arrangement of the hydraulic retarder 3 in the automobile. A flange is installed at the front end of the main shaft of the transmission box assembly 6, and a retractable front transmission shaft 7 with a cross universal joint at the front and rear is installed and connected between the flange on the output shaft of the transmission 9 and the flange at the front end of the main shaft of the transmission box assembly 6. The retractable front transmission shaft 7 can avoid the axial impact of the axial movement of the engine during operation on the main shaft of the transmission box assembly 6. In terms of design, manufacturing and installation, it is necessary to ensure that the center lines of the front drive shaft 7, the main shaft of the transmission box assembly 6 and the output shaft of the transmission 9 are in a straight line, and have an angle α tilted backward and downward with the upper wing surface of the frame assembly 8 to meet the layout requirements of the engine and the transmission 9 on the vehicle. A flange is installed at the rear end of the main shaft of the transmission box assembly 6, and a retractable rear drive shaft 2 with a cross universal joint at the front and rear is installed and connected between the flange on the input shaft of the rear drive axle 1 and the flange at the rear end of the main shaft of the transmission box assembly 6. The retractable rear drive shaft 2 can meet the requirements for the change in the length of the rear drive shaft caused by the up and down jumping of the rear drive axle 1 when the vehicle is running. In terms of design, manufacturing and installation, it is necessary to ensure that the angle β2 between the center line of the main shaft of the transmission box assembly 6 and the center line of the rear drive shaft 2 is equal to the angle β1 between the center line of the rear drive shaft 2 and the center line of the input shaft of the rear drive axle 1, and the universal joint active fork at the front end of the rear drive shaft 2 and the universal joint driven fork at the rear end of the rear drive shaft 2 are in the same plane to ensure equal angular speed transmission from the main shaft of the transmission box assembly 6 to the input shaft of the rear drive axle 1.This overall arrangement scheme of the hydraulic retarder on the automobile will not have a negative impact on the driving of the entire vehicle while satisfying the hydraulic retarder's slow braking function, and can be widely used in the installation and arrangement of the hydraulic retarder on trucks.

[0017] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0018] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. An overall arrangement structure of a hydraulic retarder on a vehicle, characterized in that: It includes a rear drive axle, a rear transmission shaft, a hydraulic retarder, a reinforcement plate, a supporting crossbeam assembly, a transmission box assembly, a front transmission shaft, a frame assembly, a transmission, a bracket assembly and a buffer rubber pad assembly. A reinforcement plate is respectively installed at a suitable position on the inner side of the middle section of the left longitudinal beam and the right longitudinal beam of the frame assembly, a bracket assembly is respectively installed on the inner side of the reinforcement plate installed on the left longitudinal beam and the right longitudinal beam of the frame assembly, a buffer rubber pad assembly is respectively installed on the left and right bracket assemblies, two ends of the supporting crossbeam assembly are installed on the buffer rubber pad assemblies on the left and right sides, and the transmission box assembly is hoisted under the supporting crossbeam assembly.

2. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 1, characterized in that: The hydraulic retarder is installed on the left rear side of the transmission case assembly.

3. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 1, characterized in that: A large gear, an intermediate gear and a small gear are arranged in the transmission box assembly. The large gear is connected to the main shaft through a spline, and the small gear is connected to the hydraulic retarder shaft through a spline.

4. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 1, characterized in that: A flange is installed at the front end of the main shaft of the transmission box assembly, and a telescopic front transmission shaft with cross-type universal joints at the front and rear is installed and connected between the flange on the output shaft of the transmission and the flange at the front end of the main shaft of the transmission box assembly.

5. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 4, characterized in that: The center lines of the front drive shaft, the main shaft of the transmission box assembly and the transmission output shaft are in a straight line, and have an α angle tilted backward and downward with the upper wing surface of the frame assembly to meet the layout requirements of the engine and transmission on the vehicle.

6. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 1, characterized in that: A flange is installed at the rear end of the main shaft of the transmission box assembly, and a telescopic rear transmission shaft with cross-type universal joints at the front and rear is installed and connected between the flange on the input shaft of the rear drive axle and the flange at the rear end of the main shaft of the transmission box assembly.

7. The overall arrangement structure of a hydraulic retarder on a vehicle according to claim 6, characterized in that: The angle β2 between the center line of the main shaft of the transmission case assembly and the center line of the rear drive shaft is equal to the angle β1 between the center line of the rear drive shaft and the center line of the rear drive axle input shaft. The active fork of the universal joint at the front end of the rear drive shaft and the driven fork of the universal joint at the rear end of the rear drive shaft are in the same plane.

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