Five-hole secondary and tertiary spot brake master valve with screen for Delonghi series

A brake master valve and belt filter technology, which is applied in the direction of brakes, brake components, control valves and air release valves, etc., can solve the problems of complex processing technology, different test performance, poor compatibility, etc., and achieve simple processing, Improved braking effect and easy spring installation

Inactive Publication Date: 2017-07-07
CHANGTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key component in the above patent is the spring ferrule. Due to the special shape of the spring ferrule and the complicated processing technology, it needs to be finished on a lathe after casting, and the cost is relatively high.
The precision dimension of the spring ferrule has high requirements, and the defective rate is very high after inspection.
In addition, due to the poor compatibility of various components, there is also the problem of complex installation process, and the test performance after installation is different, and the regularity is poor, which needs to be improved
[0003] At present, there are generally filters in the pipeline of the braking system, which are used to filter the solid particle impurities flowing with the gas in the air pipe, so as to ensure that each braking component is not affected by solid particle impurities and ensure the reliability of its work. However, due to the distance between the filter and the spool of each valve, it cannot be avoided that the filtered gas will be polluted by other newly generated solid particles before entering the spool. Sometimes solid particles will still enter the spool and affect the spool. The airtightness caused by air leakage accidents, a new solution needs to be put forward

Method used

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  • Five-hole secondary and tertiary spot brake master valve with screen for Delonghi series
  • Five-hole secondary and tertiary spot brake master valve with screen for Delonghi series
  • Five-hole secondary and tertiary spot brake master valve with screen for Delonghi series

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: A five-hole two-stage point brake master valve with filter screen for Delong series, see figure 1 , figure 2 and image 3 , including the upper body 24, the middle body 13 and the lower body 8 etc. which are sealed and fixed together sequentially from top to bottom.

[0033]The upper part of the upper body is a tubular structure, and the upper inner cavity of the upper body 24 is set with a balance piston 37, and the upper inner cavity of the upper body 24 is also provided with a limit stop ring 27 to prevent the balance piston from being ejected. The matching suit has a dustproof cover 31, and the outside of the dustproof cover 31 is fitted with the clamp 1 and fixed on the outside of the upper body 24. The dustproof cover 31 is provided with a central hole and a linkage groove 23 is provided at the central hole position.

[0034] The pedal is hinged on one side of the upper body or the pedal seat through a pin shaft, and the pedal is provided with a pin ...

Embodiment 2

[0048] Embodiment 2: A five-hole three-stage point brake main valve with filter screen for Delong series, the content is basically the same as that of Embodiment 1, the difference is: see Figure 12 , replace the two-stage point brake balance piston assembly with the three-stage point brake balance piston assembly. see Figure 13 , the three-stage point brake balance piston assembly includes a balance piston 37, a spring ferrule 40, a tappet seat 38, the top of the balance piston 37 is a cylindrical disc chamber A, and the bottom of the balance piston 37 protrudes from the space The cavity-shaped protrusion is the rod body chamber B; the upper part of the tappet seat 38 is a disc, and the lower part is a three-stage step rod body that protrudes from the disc 3801, and the first rod body is sequentially from top to bottom. 3803, the second rod body 3804, the third rod body 3805, the lower section of the third rod body 3805 is inserted into the rod body chamber B at the lower p...

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Abstract

The invention discloses a five-hole two-stage and three-stage snub brake main valve provided with a filter screen for Deron series. The snub brake main valve comprises an upper body and a lower body which are sealed and fixed together, wherein a balance piston sleeves the upper part of an inner cavity of the upper body; a first stage balance spring sleeves the outer part of a spring clamp sleeve, and a second stage balance spring sleeves the inner part of the spring clamp sleeve; an upper valve seat is clamped and fixed at the inner side of the wall of an upper valve by an elastic check ring, and a lower valve seat is clamped and fixed at the inner side of the wall of a lower valve by another elastic check ring. The structure of an upper part ring-shaped inner flanging and a lower part ring-shaped outer flanging is adopted by the snub brake main valve, so that the structure of the spring clamp sleeve is simplified, the processing difficulty and the assembly difficulty are reduced, and the yield of products can be greatly improved. The filter screen of a valve core of a brake valve in the invention is simple in structure and convenient to install, and can be arranged outside the valve core of the brake valve, especially, the valve core of the brake main valve; the filter screen is directly arranged around the valve core, a solid shell carried in gas can be prevented from entering the valve core, so that the work reliability of the valve core is greatly improved; therefore, the brake accidents can be avoided.

Description

technical field [0001] The invention relates to the technical field of parts of automobile brake valves, in particular to a five-hole two-stage and three-stage point brake master valve with filter screens for Delong series. Background technique [0002] The braking system of trucks and heavy-duty vehicles in the prior art brakes too quickly, and the foot feel is not easy to control, which will easily cause the brake pads to heat up rapidly, resulting in carbonization, which directly affects the braking effect. bias, affecting the overall stability, resulting in insecurity, or unnecessary economic losses. In order to solve these braking problems of trucks, our unit has successively proposed a series of patents on the two-stage point brake structure and three-stage balance piston assembly, such as the invention patent with the publication number CN 101837774 A, which can output ". The principle of "point brake" can make the compressed air form pulses in the control pipe sect...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B60T15/06
CPCB60T15/041
Inventor田青锋
OwnerCHANGTONG TECH