Retarding device for integral frame rubber-tyred vehicle

Abstract

The utility model discloses an integral frame rubber-tyred vehicle retarding device which comprises an integral frame, a front drive axle, a rear drive axle, a gearbox, a front transmission shaft, a coupler, a retarder and a rear transmission shaft, the front drive axle and the rear drive axle are fixed on the front portion and the rear portion of the integral frame respectively, and the gearbox is fixed in the middle of the integral frame. The gearbox is in transmission connection with the front drive axle through a front transmission shaft, the gearbox is further connected with the retarder through a coupler, the retarder is in transmission connection with the rear drive axle through a rear transmission shaft, and the retarder adopts two control modes of foot brake linkage and a hydraulic handle. By means of the mode, the hydraulic retarder can avoid the phenomena of brake abrasion and overheating caused by long-time or frequent brake treading to a certain degree, and stable braking of a vehicle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicles, in particular to a deceleration device for an integral frame rubber-wheeled vehicle. Background Art

[0002] Since there are many slopes in the tunnels of rubber-tyred vehicles used for auxiliary transportation in coal mines, the braking of existing rubber-tyred vehicles is completely dependent on the front and rear axle brakes of the vehicle. When braking is needed, the driver steps on the brake pedal to give the brake signal to cause friction braking of the brakes, especially on long downhill sections, where the brakes need to be braked continuously. Under long-term friction braking, the brakes are prone to temperature rise, thermal attenuation and wear, and in severe cases, it is easy to cause brake failure.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a deceleration device for an integral frame rubber-wheeled vehicle. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a retarding device for an integral frame rubber-wheeled vehicle. The hydraulic retarder can, to a certain extent, avoid brake wear and overheating caused by prolonged or frequent braking, thereby achieving stable braking of the vehicle.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a retarding device for a rubber-tyred vehicle with an integral frame, the retarding device for a rubber-tyred vehicle with an integral frame comprises an integral frame, a front drive axle, a rear drive axle, a gearbox, a front transmission shaft, a coupling, a retarder and a rear transmission shaft, the front drive axle and the rear drive axle are fixed to the front and rear of the integral frame, the gearbox is fixed to the middle of the integral frame, the gearbox is transmission-connected to the front drive axle through the front transmission shaft, the gearbox is also connected to the retarder through the coupling, the retarder is transmission-connected to the rear drive axle through the rear transmission shaft, and the retarder adopts two control modes: foot brake linkage and hydraulic handle.

[0006] Preferably, a retarding device for an integral frame rubber-tyred vehicle further comprises a retarder manual valve and a foot brake valve, wherein the control port of the retarder is connected to the retarder manual valve 9 via an oil circuit, and the retarder manual valve is also connected to the brake port of the foot brake valve via an oil circuit.

[0007] Preferably, the retarder manual valve is hydraulically controlled, the hydraulic source of the rubber-tyred vehicle is connected to the retarder manual valve, the retarder manual valve is connected to the hydraulic oil tank through an oil circuit, and the retarder manual valve is provided with three gears, namely: off / small / large.

[0008] Preferably, the retarder for an integral frame rubber-tyred vehicle further comprises a radiator, and the retarder is connected to the radiator via a cooling pipeline.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The integral frame rubber-tyred vehicle for coal mines installs the retarder on the transmission system as an auxiliary braking device. The auxiliary braking device is independent of the service braking system and is mainly used for auxiliary braking of heavy vehicles on long downhill slopes to help the vehicle slow down smoothly and avoid wear and heat caused by frequent use of brakes. It has the advantages of smooth braking, no impact, high vehicle comfort, and fast braking and releasing response. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of a deceleration device for a rubber-wheeled vehicle with an integral frame.

[0012] Figure 2 The present invention is a structural schematic diagram of a deceleration device for a rubber-wheeled vehicle with an integral frame.

[0013] Figure 3 This is a schematic structural diagram from another perspective of a deceleration device for an integral frame rubber-wheeled vehicle.

[0014] Figure 4 The utility model is a schematic diagram of the retarder pipeline of a retarding device of an integral frame rubber-wheel vehicle.

[0015] Among them, 1. integral frame, 2. front drive axle, 3. rear drive axle, 4. gearbox, 5. front drive shaft, 6. coupling, 7. retarder, 8. rear drive shaft, 9. retarder manual valve, 10. foot brake valve, 11. radiator. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0017] See also Figures 1 to 4 , the utility model embodiment includes:

[0018] A retarding device for a rubber-tyred vehicle with an integral frame comprises an integral frame 1, a front drive axle 2, a rear drive axle 3, a gearbox 4, a front transmission shaft 5, a coupling 6, a retarder 7 and a rear transmission shaft 8. The front drive axle 2 and the rear drive axle 3 are fixed to the front and rear of the integral frame 1, a gearbox 4 is fixed to the middle of the integral frame 1, the gearbox 4 is transmission-connected to the front drive axle 2 through the front transmission shaft 5, the gearbox 4 is also connected to the retarder 7 through the coupling 6, the retarder 7 is transmission-connected to the rear drive axle 3 through the rear transmission shaft 8, and the retarder 7 adopts two control modes: foot brake linkage and hydraulic handle.

[0019] The control port of the retarder 7 is connected to the retarder manual valve 9 through an oil circuit, and the retarder manual valve 9 is also connected to the brake port of the foot brake valve 10 through an oil circuit.

[0020] The retarder manual valve 9 is hydraulically controlled, the hydraulic source of the rubber-tyred vehicle is connected to the retarder manual valve 9, and the retarder manual valve 9 is connected to the hydraulic oil tank through an oil circuit. The retarder manual valve 9 is provided with three gears, namely: off (retarder closed) / small (low braking torque of the retarder) / large (high braking torque of the retarder). When the pedal and manual linkage control are adopted, when the slope is not less than 14°, the hydraulic retarder is used alone when the vehicle is fully loaded to achieve the effect of not exceeding the specified vehicle speed, the response time does not exceed 3s, and the surface temperature does not exceed 150°C during 3km continuous braking.

[0021] The retarder 7 is connected to a radiator 11 through a cooling pipeline, and the radiator 11 cools and dissipates heat for the retarder 7 .

[0022] The utility model discloses a retarding device for a vehicle with an integral frame and rubber wheels. The hydraulic retarder can avoid the wear and overheating of the brakes caused by long-time or frequent braking to a certain extent, thereby realizing stable braking of the vehicle.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A deceleration device for an integral frame rubber-wheeled vehicle, characterized in that: The vehicle comprises an integral frame, a front drive axle, a rear drive axle, a gearbox, a front transmission shaft, a coupling, a retarder and a rear transmission shaft. The front drive axle and the rear drive axle are fixed to the front and rear of the integral frame. The gearbox is fixed to the middle of the integral frame. The gearbox is connected to the front drive axle through the front transmission shaft. The gearbox is also connected to the retarder through the coupling. The retarder is connected to the rear drive axle through the rear transmission shaft. The retarder adopts two control modes: foot brake linkage and hydraulic handle.

2. The integral frame rubber-tyred vehicle deceleration device according to claim 1, characterized in that: It also comprises a retarder manual valve and a foot brake valve, wherein the control port of the retarder is connected to the retarder manual valve (9) via an oil circuit, and the retarder manual valve is also connected to the brake port of the foot brake valve via an oil circuit.

3. The integral frame rubber-tyred vehicle deceleration device according to claim 1, characterized in that: The retarder manual valve is hydraulically controlled, the hydraulic source of the rubber-tyred vehicle is connected to the retarder manual valve, and the retarder manual valve is connected to the hydraulic oil tank through an oil circuit. The retarder manual valve is provided with three gears, namely: off / small / large.

4. The integral frame rubber-tyred vehicle deceleration device according to claim 1, characterized in that: A radiator is also included, and the retarder is connected to the radiator through a cooling pipeline.

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