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Piston type retarding braking system for truck

A slow-speed braking, piston-type technology, used in brake actuators, gear transmission mechanisms, mechanical equipment, etc., can solve the problems of brake recession, poor heat dissipation, and reduced braking efficiency, and reduce lock-up. , Improve braking effect, increase the effect of resistance

Active Publication Date: 2020-08-14
QINGDAO LINDA TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, drum brakes are generally used to brake large trucks. Drum brakes have many disadvantages, such as poor heat dissipation. When encountering a long downhill, braking for a long time will cause heat to accumulate. Under the influence of high temperature, extremely complex deformation is more likely to occur, and it is easy to cause braking failure and chattering, resulting in a decrease in braking efficiency; and the overall quality of the drum brake is relatively heavy, and the number of use is large, which is not conducive to the lightweight of the vehicle

Method used

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  • Piston type retarding braking system for truck
  • Piston type retarding braking system for truck
  • Piston type retarding braking system for truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: A kind of piston-type retarding braking system for trucks, including engine 1, power shaft 2 driven by engine 1, gearbox 3, transmission shaft 31 for outputting the changed speed of gearbox 3, setting The disc brake 4 on the transmission shaft 31 , the rear axle 5 arranged at the end of the power shaft 2 away from the engine 1 , and the piston brake 6 for braking by the transmission shaft 31 . The rear axle 5 is provided with a connection disc 521 connected with the tire.

[0042] see figure 2 and image 3 , The piston brake 6 includes a frame body 7 fixed on the vehicle body and a piston 66 fixed on the frame body 7 .

[0043] The transmission shaft 31 is provided with a missing gear 71 coaxially rotating with the transmission shaft 31 (keyway connection), and the periphery of the missing gear 71 is provided with a moving frame 72 that cooperates with the missing gear 71. The top and bottom ends of the inner wall of the moving frame 72 are respectively...

Embodiment 2

[0050] Embodiment 2: The difference between this embodiment and Embodiment 1 lies in the way of driving the piston rod 663 to reciprocate.

[0051] A piston retarder braking system for trucks, see Figure 4 , including an engine 1, a power shaft 2 driven by the engine 1, a gearbox 3, a disc brake 4 arranged between the gearbox 3 and the engine 1, a rear axle 5 arranged at the end of the power shaft 2 away from the engine 1, and the rear Bridge 5 is braked by piston brake 6 . There are two groups of piston brakes 6, which are symmetrically arranged at both ends of the rear axle 5. The number of disc brakes 4 is two, and the control end extends into the cab of the truck.

[0052] The gearbox 3 is provided with a transmission shaft 31 , the power shaft 2 transmits the power of the engine 1 to the gearbox 3 , and after the gearbox 3 rotates, it is output through the transmission shaft 31 .

[0053] see Figure 4 and Figure 5 , the rear axle 5 includes a housing 51 fixed to t...

Embodiment 3

[0063] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the braking position of the piston brake 6 is different.

[0064] see Figure 5 and Figure 6 , the left output shaft 53 (and the right output shaft 52) ​​is provided with a fourth brake gear 68 coaxially rotating with the left output shaft 53 (and the right output shaft 52), and the first brake gear 61 and the fourth brake gear Gear 68 meshes. A housing 69 for supporting the first brake gear 61 , the brake shaft 62 and the second brake gear 63 is fixed on the housing 51 . At this time, the resistance of the piston 66 is directly transmitted to the left output shaft 53 (and the right output shaft 52 ), which directly decelerates and brakes the left output shaft 53 (and the right output shaft 52 ).

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Abstract

The invention discloses a piston type retarding braking system for a truck, and relates to the technical field of vehicle braking. The key points of the technical scheme are as follows: the piston type retarding braking system for the truck comprises an engine, a power shaft for transmitting the power of the engine, a gearbox for receiving the transmission of the power shaft, disc brakes arrangedon the power shaft, a rear axle, and piston type brakes used for braking the rear axle. The piston type brakes are used for replacing existing drum type brakes, and thus the effect of overcoming the defects of the existing drum type brakes is achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a piston type retarding braking system for trucks. Background technique [0002] Automobile braking system refers to a series of special devices that exert a certain force on certain parts of the automobile (mainly the wheels) to perform a certain degree of mandatory braking. The function of the braking system is: to make the driving car decelerate or even stop forcibly according to the driver's request; to make the stopped car stably park under various road conditions (including on the slope); to make the car driving downhill The speed remains steady. In the prior art, drum brakes are generally used to brake large trucks. Drum brakes have many disadvantages, such as poor heat dissipation. When encountering a long downhill, braking for a long time will cause heat to accumulate. Under the influence of high temperature, extremely complex deformations are prone to occur, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14F16D121/04F16D125/06
CPCF16D65/14F16D2121/04F16D2125/06
Inventor 王永林郑卫国王明智
Owner QINGDAO LINDA TECH DEV CO LTD
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