Single-H-structure gearbox air path control mechanism

Abstract

The invention discloses a single-H-structure gearbox air path control mechanism which comprises a shell, a transverse gearshift, a control block, a gear shifting block, an air path control valve and areset mechanism, wherein the reset mechanism is used for the reset of the gear shifting block; the transverse gearshift is horizontally arranged in the shell and capable of rotating; the control block, the reset mechanism and the gear shifting block are mounted on the transverse gearshift; the gear shifting block is capable of synchronously rotating along with the transverse gearshift and horizontally sliding on the transverse gearshift; the control block is capable of synchronously rotating along with the transverse gearshift; a first groove is formed in the control block; the air path control valve is arranged on the shell; an ejector rod of the air path control valve penetrates through the shell and gets in touch with the control block; when the ejector rod of the air path control valve is positioned in the first groove, the air path control valve is opened; and when the ejector rod of the air path control valve is positioned outside the first groove, the air path control valve isclosed. The single-H-structure gearbox air path control mechanism is simple in structure, high in universality, and convenient to assemble and maintain, can be applied to a single-H-structure controlled gearbox with main and auxiliary box bodies, and has the relatively high use and popularization value.

Description

technical field [0001] The invention relates to the field of gearboxes, in particular to an air circuit control mechanism of a gearbox with a single H structure. Background technique [0002] The transmission of the main and auxiliary box structure, the high and low gear switching of the auxiliary box synchronizer is an air-controlled operation. In order to protect the auxiliary box synchronizer, the switching of the auxiliary box must be carried out when the main box is in neutral, so the air circuit of the auxiliary box needs to be shifted. Shift head or main box shift fork shaft control. The gas circuit control valve of the single H-structure transmission with a follower lever is controlled by the interaction between the follower lever and the shift fork shaft of the main box. The follower lever contacts multiple fork shafts at the same time. When the main box is in neutral, The follower lever does not move, and the air circuit of the auxiliary box is opened. When the ma...

AI Technical Summary

Problems solved by technology

[0003] The air circuit control valve and the neutral light of the single H structure transmission with a follower lever are controlled by the follower lever, and the neutral and reverse gear indicator switches are arranged on the upper cover assembly; The air circuit control valve needs to be installed on the control assembly. In the past, the air circuit control valve was installed on the side of the shift pad. There will be interference between the reverse indicator switch and the air control valve, and the air control valve cannot be installed

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