Single-H gas path

Abstract

The invention provides a single-H air valve. The problems that the types of parts in a single H-shaped gas path in an existing heavy-duty truck-mounted transmission are various, the gas path arrangement is tedious, and the problem that the gear shifting phenomenon of an auxiliary tank synchronizer is easy to occur are solved. The single-H gas path comprises an air filter, an air inlet pipe, an integrated valve, a high-grade air pipe, a low-grade air pipe and an air cylinder; the integrated valve simultaneously has the functions of a single-H valve and a gas path control valve; and compressed air enters the integrated valve through the air filter and the air inlet pipe, and then enters the air cylinder through the high-grade air pipe or the low-grade air pipe. According to the single-H airvalve, the integrated valve is adopted to replace the single-H valve and the gas path control valve, so that a transition gas pipe among a single-H valve support, the single-H valve and the gas path control valve is directly omitted, the installation part is saved, so that the gas path is clear, the arrangement is more compact, and the integration is higher; meanwhile, due to the fact that the channel distance between the two air valves is shortened, the phenomenon of gear dropping of the auxiliary tank synchronizer is avoided.

Description

technical field [0001] The invention belongs to the field of gearboxes, and in particular relates to a single H gas circuit. Background technique [0002] At present, heavy-duty trucks all adopt double countershaft transmissions with main and auxiliary box structures, and the auxiliary transmissions rely on shift valves to switch between high and low gears. However, the air valve and air circuit products on the existing transmission have design risks. [0003] Taking the existing 12-speed transmission as an example, it uses a single H air circuit, such as figure 1 As shown, it contains 12 parts, air filter 1, high-grade air pipe 2, low-grade air pipe 3, single H valve 4, connecting screw 5, vent plug 6, single H valve support 7, transition air pipe 8, air control valve 9, Tee joint 10, intake pipe 11, and cylinder 12; it can be seen that there are many types of parts in the air circuit, single function, cumbersome air circuit layout, not compact, and there are problems of ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing single-H air circuit in the transmission of heavy-duty trucks, such as various parts, cumbersome air circuit layout, and the tendency of auxiliary box synchronizer to lose gear, and provide a single-H Gas line

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