Auxiliary supporting structure of automobile hydraulic retarder

Abstract

The utility model relates to an auxiliary supporting structure of an automobile hydraulic retarder, which belongs to the technical field of truck manufacturing and comprises a supporting beam, two connecting plates, a supporting connecting rod, a frame assembly and a retarder. A threaded blind hole perpendicular to the axis of a main shaft of the retarder is formed in the upper end face of the retarder. The two connecting plates are fixed to the two ends of the supporting beam respectively. The supporting plate is connected with the frame assembly; a connecting rod connecting hole is formed in the left side of the supporting beam, the lower end of the supporting connecting rod is connected with the threaded blind hole, and the upper end of the supporting connecting rod penetrates through the connecting rod connecting hole in the supporting beam to be connected with the supporting beam; the automobile hydraulic retarder supporting device can effectively solve the falling problem of the retarder in the running process of an automobile, and the problems that the retarder or a transmission case leaks, and a buffering rubber mat of the automobile hydraulic retarder supporting device is damaged too early are greatly solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of truck manufacturing, and in particular relates to an auxiliary supporting structure of a hydraulic retarder of an automobile. Background Art

[0002] The function of the automobile hydraulic retarder is to enable the retarder when the automobile is decelerating or going down a long slope, so that the vehicle can decelerate smoothly and avoid the wear and heat of the brake components caused by the use of brakes. The hydraulic retarder is a device that uses liquid damping to produce a retarding effect. Installing a hydraulic retarder in the transmission system of a truck has become an urgent need for truck manufacturers and users. The automobile hydraulic retarder support device can support the transmission case and the retarder integral part on the truck frame assembly. However, since the retarder is installed at the rear end of the transmission case, which is the supporting object of the automobile hydraulic retarder support device, there is a large suspension distance relative to the center line of the automobile hydraulic retarder support device, which will cause the retarder to fall during the operation of the vehicle, thereby causing the retarder or transmission case to leak and the buffer rubber pad of the automobile hydraulic retarder support device to be damaged prematurely. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, the utility model provides an auxiliary supporting structure for an automobile hydraulic retarder, which effectively solves the problem of the retarder falling during the operation of the automobile by arranging a supporting beam that can be connected to the frame assembly, opening a threaded blind hole perpendicular to the retarder on the upper end surface of the retarder, and connecting the threaded blind hole and the supporting beam of the retarder with a supporting connecting rod, and also greatly reduces the problems of leakage of the retarder or the transmission box and premature damage of the buffer rubber pad of the automobile hydraulic retarder supporting device.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] The auxiliary supporting structure of the automobile hydraulic retarder includes a supporting beam, two connecting plates, a supporting connecting rod, a frame assembly and a retarder; a threaded blind hole perpendicular to the main shaft axis of the retarder is provided on the upper end surface of the retarder; two connecting plates are respectively fixed at both ends of the supporting beam; the connecting plate is connected to the frame assembly; a connecting rod connecting hole is provided on the left side of the supporting beam, the lower end of the supporting connecting rod is connected to the threaded blind hole of the retarder, and the upper end passes through the connecting rod connecting hole of the supporting beam and is connected to the supporting beam.

[0006] Preferably, the connecting plate is connected to the frame assembly by fine-thread bolts, and the connecting bolts are provided with flat washers and spring washers.

[0007] Preferably, the supporting connecting rod is a cylindrical rod, and fine threads are respectively provided at the upper and lower ends, and the length of the lower thread is greater than that of the upper thread.

[0008] Preferably, a spring washer and a fine-thread nut are provided at the connection between the support connecting rod and the threaded blind hole of the retarder.

[0009] Preferably, a steel sleeve, a steel washer, a buffer rubber pad and a fine-pitch nut are provided at the connection between the supporting connecting rod and the supporting beam; the steel sleeve is sleeved on the outside of the supporting connecting rod and passes through the connecting rod connecting hole of the supporting beam, and on the upper and lower end surfaces of the supporting beam, the steel washer, the buffer rubber pad and the steel washer are sequentially sleeved on the steel sleeve from the inside to the outside, and two fine-pitch nuts are respectively connected to the supporting connecting rod by abutting against the uppermost and lowermost steel washers.

[0010] Preferably, the length of the steel sleeve is less than the total thickness of the support beam, the steel washer and the buffer rubber pad.

[0011] Preferably, the two connecting plates are respectively connected to the inner sides of the left and right longitudinal beams of the frame assembly.

[0012] Beneficial effects of the utility model:

[0013] The structure of the utility model can realize stable support of the retarder, effectively solve the problem of the retarder falling during the operation of the car, and greatly reduce the phenomenon of leakage of the retarder or the transmission box and premature damage of the buffer rubber pad of the automobile hydraulic retarder support device. The fixed structure of the utility model is stable and not easy to shake, and has little or no impact on other structures.

[0014] The utility model also has the characteristics of simple structure and low cost, and can be widely applied to trucks equipped with hydraulic retarders. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a rear view of the overall structural diagram of the utility model.

[0016] Figure 2 It is a top view of the overall structural schematic diagram of the utility model;

[0017] Figure 3 yes Figure 1 AA section view;

[0018] Remark: Figure 1 The view is obtained by projecting forward from the direction of the car's travel;

[0019] In the figure, 1-support, 2-support connecting rod, 3-fine-thread nut, 4-steel washer, 5-buffer rubber pad, 6-bolt, 7-flat washer, 8-spring washer, 10-transmission box, 11-retarder, 12-connecting plate, 13-frame assembly, 14-automobile hydraulic retarder supporting device, 15-steel bushing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0021] In the description of the present invention, unless otherwise specified, the terms "left", "upper", "lower", etc. indicate positions or state relationships based on the positions or state relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0023] like Figure 1-3 As shown, the mounting base of the utility model, namely the frame assembly 13, the supporting object of the device, namely the retarder 11, the transmission case 10 and the automobile hydraulic retarder supporting device 14 are indicated by double-dotted lines and are made transparent.

[0024] The auxiliary support structure of the automobile hydraulic retarder comprises a support beam 1, two connecting plates 12, a support connecting rod 2, a frame assembly 13 and a retarder 11.

[0025] Two connecting plates 12 are fixed to the two ends of the support beam 1 respectively. The upper end surface of the retarder 11 is provided with a threaded blind hole perpendicular to the main shaft axis of the retarder 11, and the left side of the support beam 1 is provided with a connecting rod connecting hole. The connecting rod connecting hole of the support beam 1 is opposite to the threaded blind hole of the retarder, and the lower end of the supporting connecting rod 2 is connected to the threaded blind hole of the retarder, and the upper end is connected to the supporting beam 1 through the connecting rod connecting hole of the support beam 1. The supporting connecting rod 2 is inclined at an angle α relative to the vertical plane (as shown in the attached figure). Figure 3 ), the size of the angle α is the same as the inclination angle between the axis of the front drive shaft and the horizontal plane.

[0026] Since the main shaft of the transmission box 10 is connected to the rear end of the front drive shaft of the car through a cross-axis universal joint, and the rear end of the main shaft of the transmission box 10 is connected to the front end of the rear drive shaft of the car through a cross-axis universal joint, the rotation of the main shaft of the transmission box 10 is increased by the gear transmission mechanism and then transmitted to the main shaft of the retarder 11 installed behind the transmission box. The front end of the transmission box 10 and the retarder 11 integrated part is supported on the truck frame assembly 13 through the automobile hydraulic retarder support device 14. The axis of the retarder main shaft is parallel to the axis of the transmission box main shaft, while the axis of the front drive shaft is tilted at an angle α to the horizontal plane. Since the cross-axis universal joint in the retarder is an unequal speed universal joint, by tilting the supporting connecting rod 2 at an angle α relative to the vertical plane, it is ensured that the main shaft of the transmission box and the axis of the drive shaft at its front end are on the same straight line, so that the main shaft of the transmission box and the drive shaft at its front end can be ensured to rotate at the same speed, thereby avoiding the vibration and noise caused by the unequal speed characteristics of the cross-axis universal joint.

[0027] In order to ensure the firmness and stability of the structural connection, the connecting plate 12 is connected to the frame assembly 13 by fine-pitch bolts, and the fine-pitch bolts are provided with flat washers 7, spring washers 8 and fine-pitch nuts 3.

[0028] The supporting connecting rod 2 is connected between the threaded blind hole of the retarder and the connecting rod connecting hole of the supporting beam 1, wherein the supporting connecting rod 2 is connected with three fine-pitch nuts 3 between the threaded blind hole of the retarder and the supporting beam 1, and two fine-pitch nuts 3 are connected above the supporting beam 1. In this way, there are two fine-pitch nuts 3 on the upper and lower end faces of the supporting connecting rod 2 and the supporting beam 1 respectively, and the fine-pitch nuts 3 close to the upper and lower end faces of the supporting beam 1 play a role in adjusting the connection height between the supporting connecting rod 2 and the supporting beam 1, and the two fine-pitch nuts on the outer side play a locking role.

[0029] The connection between the supporting connecting rod 2 and the supporting beam 1 is provided with a steel sleeve 15, a steel washer 4, a buffer rubber pad 5 and a fine-pitch nut 3, wherein the steel sleeve 15 is sleeved on the outside of the supporting connecting rod 2 and passes through the connecting rod connection hole of the supporting beam 1. On the upper and lower end surfaces of the supporting beam 1, the steel washer 4, the buffer rubber pad 5 and the steel washer 4 are sleeved on the steel sleeve 15 in sequence from the inside to the outside, and two fine-pitch nuts 3 are respectively connected to the supporting connecting rod 2 by abutting against the upper and lower steel washers 4. The steel sleeve 15 can reduce or avoid the contact wear between the supporting connecting rod 2 and the supporting beam 1, thereby avoiding looseness and shaking caused by wear; on the upper and lower end surfaces of the supporting beam 1, the combined structure of the steel washer 4 plus the buffer rubber pad 5 plus the steel washer 4 also prevents wear, and avoids or reduces looseness and shaking caused by wear, and avoids or reduces shaking and loosening after the use of the utility model. The length of the steel sleeve 15 is smaller than the total thickness of the support beam 1 and the steel washers 4 and the buffer rubber pads 5 on the upper and lower sides of the support beam 1. In this way, the buffer rubber pads 5 can play a buffering role and effectively reduce the vibration caused by the operation of the hydraulic retarder.

[0030] Demonstration of the processing and installation process of this utility model:

[0031] The supporting beam assembly is welded together by a supporting beam 1 and two plates 12; the supporting beam 1 is cut from angle steel, and a circular connecting rod connecting hole is machined at an appropriate position on the left end of the horizontal plane of the supporting beam 1; the connecting plate 12 is cut from steel plate into a rectangle, and a bolt mounting hole is machined. After the supporting connecting rod 2 is cut from round steel, both the upper and lower ends are machined into fine-pitch threads, and the lower end thread section is relatively long, and the upper end thread section is relatively short. After three fine-pitch nuts 3 are installed on the lower end thread section of the supporting connecting rod 2, and then a spring washer (Φ16) is installed, the lower end of the supporting connecting rod 2 is installed in the threaded blind hole specially machined on the retarder 11, and the fine-pitch nut 3 at the lower end is tightened to compress the spring washer 8 (Φ16). Install a steel washer 4, a buffer rubber pad 5, a steel washer 4 on the two fine-pitch nuts 3 installed at the lower end of the supporting connecting rod 2, and then install a steel sleeve 15, then pass through the connecting rod connection hole of the supporting beam 1, install a steel washer 4, a buffer rubber pad 5, a steel washer 4 on the upper section of the supporting connecting rod 2, and finally install two fine-pitch nuts 3. Install the connecting plates 12 at both ends of the supporting beam 1 on the inner side of the left and right longitudinal beams of the frame assembly 13 with an M14×35 bolt 6, a Φ14 flat washer 7, a Φ14 spring washer 8 and an M14 fine-pitch nut 3 respectively. Rotate the fine-pitch nut 3 to adjust the buffer rubber pads 5 on the upper and lower sides of the supporting beam 1 to the appropriate position, and lock them with the other two fine-pitch nuts 3. Since the threaded hole specially processed on the retarder 11 is perpendicular to the main shaft axis of the retarder 11, the supporting connecting rod 2 is tilted at an angle α relative to the vertical plane after installation, which ensures that the main shaft axis of the retarder 11 is tilted at an angle α with the horizontal plane and is parallel to the transmission shaft axis at its front end. This kind of auxiliary support device for automobile hydraulic retarder greatly reduces the phenomenon of retarder falling during the operation of the automobile, and also greatly reduces the phenomenon of retarder or transmission box leakage and premature damage to the buffer rubber pad of the automobile hydraulic retarder support device. It has a simple structure and low cost, and can be widely used in trucks equipped with hydraulic retarders.

[0032] 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 auxiliary support structure for a hydraulic retarder of an automobile, characterized in that: The invention comprises a support beam (1), two connecting plates (12), a support connecting rod (2), a frame assembly (13) and a retarder (11); the upper end surface of the retarder (11) is provided with a threaded blind hole perpendicular to the main shaft axis of the retarder (11); the two connecting plates (12) are respectively fixed to the two ends of the support beam (1); the connecting plate (12) is connected to the frame assembly (13); a connecting rod connecting hole is provided on the left side of the support beam (1); the lower end of the support connecting rod (2) is connected to the threaded blind hole of the retarder (11), and the upper end passes through the connecting rod connecting hole on the support beam (1) to be connected to the support beam (1).

2. The auxiliary support structure of the automobile hydraulic retarder according to claim 1, characterized in that: The connecting plate (12) is connected to the vehicle frame assembly (13) via fine-thread bolts, and a flat washer (7) and a spring washer (8) are provided on the connecting bolts.

3. The auxiliary support structure of the automobile hydraulic retarder according to claim 1, characterized in that: The supporting connecting rod (2) is a cylindrical rod, and fine threads are respectively provided at the upper and lower ends, and the length of the lower thread is greater than that of the upper thread.

4. The auxiliary support structure for a hydraulic retarder for an automobile according to claim 3, characterized in that: A spring washer (8) and a fine-thread nut (3) are provided at the connection between the support connecting rod (2) and the threaded blind hole of the retarder (11).

5. The auxiliary support structure for a hydraulic retarder for an automobile according to claim 1, characterized in that: A steel sleeve (15), a steel washer (4), a buffer rubber pad (5) and a fine-pitch nut (3) are provided at the connection between the supporting connecting rod (2) and the supporting beam (1); the steel sleeve (15) is sleeved outside the supporting connecting rod (2) and passes through the connecting rod connection hole on the supporting beam (1); on the upper and lower end surfaces of the supporting beam (1), the steel washer (4), the buffer rubber pad (5) and the steel washer (4) are sleeved on the steel sleeve (15) in sequence from the inside to the outside; and two fine-pitch nuts (3) are respectively abutted against the uppermost and lowermost steel washers (4) and connected to the supporting connecting rod (2).

6. The auxiliary support structure for the automobile hydraulic retarder according to claim 5, characterized in that: The length of the steel sleeve (15) is less than the total thickness of the support beam (1), the steel washer (4) and the buffer rubber pad (5).

7. The auxiliary support structure for a vehicle hydraulic retarder according to claim 1, characterized in that: The two connecting plates (12) are respectively connected to the inner sides of the left and right longitudinal beams of the vehicle frame assembly (13).

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