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Empty truck valve for vehicles

An empty-load vehicle valve and vehicle technology, applied in the field of rail transit, can solve problems such as difficulty in meeting the requirements of the vehicle braking system and difficulty in adjusting the proportional relationship, and achieve the effect of high integration and compact overall structure

Active Publication Date: 2022-07-26
QINGDAO SRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to adjust the proportional relationship between the pre-control pressure of the valve brake pre-control pressure of the existing empty-load vehicle and the air spring pressure, and it is difficult to meet the requirements of the vehicle braking system.

Method used

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  • Empty truck valve for vehicles
  • Empty truck valve for vehicles
  • Empty truck valve for vehicles

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Embodiment Construction

[0076] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0077] The present invention provides an empty truck valve for vehicles, which includes a valve seat 1, a valve core assembly, a push rod 6, an exhaust valve body 8, an adjustment sleeve 17, a first spring 15, a second spring 16, a casing 20 and other components .

[0078] The valve seat 1 has the following structure. The base body of the valve seat 1 is provided with a through-cavity hole 101 penetrating the thickness direction of the base body, and is further provided with: an air spring air passage 102 connected to the air spring, a pre-control pressure inl...

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Abstract

The invention provides an empty-heavy truck valve for vehicles. The empty-heavy truck valve includes a valve seat, a valve core assembly, an ejector rod, a pressure chamber, a first spring, a second spring and other structures. The valve seat is provided with an air spring pressure air circuit, a pre-control pressure inlet air circuit, a pre-control pressure outlet air circuit and an outlet pressure feedback air circuit. The present invention adopts the structure of force transmission rod and spring to realize the balance of air pressure. By designing large spring seats of different sizes, the area of ​​the acting ejector rod and the area of ​​the force transmission rod, the ratio between the pre-control pressure and the air spring pressure can be adjusted. relation. The initial preload force of the first spring and the second spring can be adjusted through the shell and stop lever, so as to set the minimum pre-control pressure, and make fine adjustments to the pre-control pressure, so that the brake pre-control pressure can be adjusted with the air. The pressure change of the spring is accurately adjusted to realize the automatic adjustment of the braking force with the change of the vehicle load.

Description

technical field [0001] The invention relates to the technical field of rail transportation, and relates to an empty-heavy truck valve for vehicles. Background technique [0002] In order to improve the transportation efficiency, the load of the vehicle is increasing and the self-weight is gradually decreasing, which leads to the gradual increase of the empty-weight ratio of the vehicle. Therefore, the role of the empty-weight vehicle adjustment device is becoming increasingly prominent. With the increase of the vehicle speed and the further increase of the vehicle's empty-to-weight ratio, to ensure that the heavy-duty vehicle has sufficient braking force under the condition of high-speed heavy load, it can stop within a specified distance, and the empty-vehicle braking force will not be too high. If it is too large, it will prevent the braking force from exceeding the adhesive force and cause the wheel tread to be scratched. [0003] For vehicles that are loaded by air spri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T15/02B60T8/18
CPCB60T15/021B60T8/1831B60T8/1893
Inventor 魏灿刚石喆文赵庆刚李从元安震刘德才薛皓
Owner QINGDAO SRI TECH CO LTD
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