Spring brake chamber capable of preventing braking force superposition

A spring brake air chamber, braking force technology, applied in the direction of brake transmission, brake, brake actuator, etc., can solve the problem of increased maintenance cost, complicated pipeline connection, differential relay valve or two-way single There are many problems such as many ports to the valve, so as to reduce the configuration cost, save the installation space, and reduce the failure mode.

Active Publication Date: 2013-05-08
RUILI GROUP RUIAN AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of such a pipeline is that due to the addition of valves in the brake pipeline, the pipeline connection becomes complicated and the failure mode of the brake system is increased. Faults increase the failure risk of the braking system; and because there are many interfaces of the differential relay valve or the two-way check valve, the piping connection of the system becomes complicated, which increases the maintenance cost

Method used

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  • Spring brake chamber capable of preventing braking force superposition
  • Spring brake chamber capable of preventing braking force superposition
  • Spring brake chamber capable of preventing braking force superposition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 and 2 As shown, an anti-braking force superimposed spring brake air chamber includes a spring brake air chamber 1 and a bypass valve 2 arranged on the middle housing at the piston shaft 6 in the spring brake air chamber 1, The bypass valve 2 includes a valve seat 3 , a one-way valve 4 and a return spring 5 .

[0028] When driving, the anti-braking force superimposed spring brake air chamber parking brake port 7 always has air pressure acting on the parking brake chamber 9, and the energy storage spring 10 is compressed under the action of the air pressure, and is in the parking brake release position; At the same time, the air pressure of the parking brake chamber 9 acts on the bypass valve chamber 11 of the bypass valve 2, and the air pressure acts on the check valve 4. The air pressure of the check valve 4 in the parking brake chamber 9 and the return spring 5 The vent 12 is closed under the action.

[0029] When the service brake is performed, the...

Embodiment 2

[0034] Such as image 3 and 4 As shown, an anti-braking force superimposed spring brake air chamber includes a spring brake air chamber 1 and a bypass valve 2 arranged on the middle housing at the piston shaft 6 in the spring brake air chamber 1, The bypass valve 2 includes a valve seat 3 and a one-way valve 4 .

[0035] When driving, the anti-braking force superimposed spring brake air chamber parking brake port 7 always has air pressure acting on the parking brake chamber 9, and the energy storage spring 10 is compressed under the action of the air pressure, and is in the parking brake release position; At the same time, the air pressure of the parking brake chamber 9 acts on the bypass valve chamber 11 of the bypass valve 2, and the air pressure acts on the one-way valve 4, and the one-way valve 4 closes the air port 12 under the action of the air pressure of the parking brake chamber 9. .

[0036] When the service brake is performed, the air pressure from the bicycle br...

Embodiment 3

[0041] Such as Figure 5 As shown, an anti-braking force superimposed spring brake air chamber includes a spring brake air chamber 1 and a bypass on the middle housing at the parking brake port 7 in the spring brake air chamber 1 A valve 2 , the bypass valve 2 includes a valve seat 3 , a one-way valve 4 and a return spring 5 .

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PUM

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Abstract

The invention provides a spring brake chamber capable of preventing braking force superposition. In the invention, a bypass valve is arranged in the spring brake chamber, and the bypass valve comprises a valve seat and a one-way valve and optionally comprises a return spring; the spring brake chamber is of an external respiration structure or an internal respiration structure; and the bypass valve can be arranged on a middle shell at a piston shaft of the spring brake chamber, a middle shell of a parking brake port, an energy storage piston or in a parking brake port. By adopting the spring brake chamber capable of preventing braking-force superposition, the conventional differential relay valve or dual-way check valve is omitted, and the function of preventing braking force superpositionis realized; and meanwhile a brake pipeline can be more simple and convenient in connection, a brake system can be more economically configured, and failure modes are reduced.

Description

technical field [0001] The invention relates to a vehicle air brake system, in particular to an anti-braking force superimposed spring brake air chamber. Background technique [0002] In the prior art, in order to prevent the simultaneous action of the driving brake and the parking brake, the brake pipeline system mainly has two structures, one is the brake pipeline with a differential relay valve attached to the spring brake air chamber , and the second is the brake pipeline with a double-way check valve outside the spring brake air chamber; the brake pipelines of these two structures are installed with a differential relay valve outside the spring brake air chamber in the pipeline. Or a two-way one-way valve to achieve the purpose of preventing the superposition of braking force. The disadvantage of such a pipeline is that due to the addition of valves in the brake pipeline, the pipeline connection becomes complicated and the failure mode of the brake system is increased....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/24F16D65/14F16D121/02F16D125/02
Inventor 黄万义王伟杨帆
Owner RUILI GROUP RUIAN AUTO PARTS CO LTD
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