Heavy type lorry transmission-gear box durable main air valve

A technology for heavy-duty trucks and main air valves, applied to components with teeth, transmission parts, fluid pressure actuators, etc. The air valve is easy to be damaged and other problems, so as to achieve the effect of easy processing and manufacturing

Inactive Publication Date: 2008-08-13
爱安特技术(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the shifting main air valve of the existing heavy-duty truck gearbox is easily damaged, cannot be used for a long period of time and the sealing surface of the valve seat is not easy to be finished, and provides a durable main air valve for the heavy-duty truck gearbox

Method used

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  • Heavy type lorry transmission-gear box durable main air valve
  • Heavy type lorry transmission-gear box durable main air valve
  • Heavy type lorry transmission-gear box durable main air valve

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific implementation mode one: refer to figure 1 with figure 2 , the present embodiment is composed of shifting main air valve body 1, spring 2, electromagnetic pilot valve 3, neutral gear pin 4, piston 5, steel retaining ring spool 6, aluminum reversing spool 7, rubber ring valve The seat assembly 8 and the sliding sleeve 9 are composed. The electromagnetic pilot valve 3 is assembled on the left end of the shift main air valve body 1, and the air outlet pipe 27 of the electromagnetic pilot valve 3 communicates with the right end surface of the piston 5. The inside is close to the wall of the inner hole, and the sliding sleeve 9 and the rubber ring valve seat assembly 8 are fixed and assembled sequentially from the left end to the right end, and the piston 5 and the steel ring valve seat assembly 8 are slidingly assembled in the holes of the sliding sleeve 9 and the rubber ring valve seat assembly 8 from left to right. The retaining ring spool 6, the aluminum reve...

specific Embodiment approach 2

[0009] Specific implementation mode two: refer to figure 1 The difference between this embodiment and the first embodiment is that a plastic guide ring 11 is inlaid on the outer circular surface of the right end retaining ring 20 of the steel retaining ring spool 6, and other components and connections are the same as those of the first embodiment. . The plastic guide ring 11 slides along the inner wall of the sliding sleeve 9 and acts as a guide to the steel retaining ring spool 6 .

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PUM

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Abstract

The present invention provides a durable main air valve for heavy truck gear-box, relating to a shift main air valve of heavy truck gear-box. The aim of the invention is to resolve the problem of easy damage of the shift main air valve of the present heavy truck gear-box, not used for long period and difficult finish machining of the valve base sealing face, the main air valve cling to inner wall is fixedly assembled with a sliding bush, a rubber ring valve base component from left to right in orders, holes between the sliding bush and the rubber ring valve base from left to right are slidely assembled with a piston, a steel limit ring valve core, an aluminum reversing valve core and a spring in orders, wherein, the right of the piston and the left of the steel limit ring valve core are connected, the shaft drum external surface of the aluminum reversing valve core and the seal ring of the rubber ring valve base component form kinematical seal; the upper of the neutral gear bumper pin is inserted between the left baffle ring and the right baffle of the steel limit ring valve core, the right baffle ring sets multiple axial pylomes. The main air valve has a long using life, easy to process.

Description

technical field [0001] The invention relates to a shift main air valve of a heavy-duty truck gearbox. Background technique [0002] Currently, if image 3 As shown, the shift main air valve of the gearbox of a heavy-duty truck adopts an aluminum one-piece valve core 24. There is a rubber ring 25 on the valve core 24 to form a flexible sealing surface, and the sealing surface of the valve seat is rigid. The shortcoming of mechanism and material is: because the spool 24 strength made of aluminum is low, so just very easy damage when the retaining ring groove 26 of spool 24 collides with steel limit pin 4, and damage accumulates to a certain degree, then occurs valve. When the safety control function of the valve core fails, when the valve core 24 moves, the air hole A, air hole B, and air hole P on the sealing surface of the valve seat will also damage the rubber ring 25 on the valve core, which limits the shifting of the main air valve. long-term use. And because the sealin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/00F16H59/04F15B13/02
Inventor 戴远敏逯延赵玉琢姜海龙付昱飞李秀梅徐晓立刘海之付新毅
Owner 爱安特技术(常州)有限公司
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