Heavy truck transmission with main and auxiliary box structures and single-H gate valve

A technology for heavy-duty vehicles and transmissions, applied in the direction of multi-way valves, valve details, valve devices, etc., can solve the problems of complete vehicle damage to transmissions, easy to engage in gears by mistake, etc., to simplify the structure, reduce the difficulty of assembly, and improve comfort Effect

Active Publication Date: 2015-04-08
SHAANXI FAST GEAR CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the corresponding position of the guide block is like the two capital letters "H", we vividly call it "double H control", but it is easy to mistakenly engage the gear during the gear selection process in this way, causing damage to the gearbox and even the entire vehicle

Method used

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  • Heavy truck transmission with main and auxiliary box structures and single-H gate valve
  • Heavy truck transmission with main and auxiliary box structures and single-H gate valve
  • Heavy truck transmission with main and auxiliary box structures and single-H gate valve

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Embodiment Construction

[0027] Such as figure 1 and figure 2 As shown, the heavy-duty vehicle transmission of the main and auxiliary box structure of the present invention includes a main box, an auxiliary box, an air filter regulator, an air circuit control valve, a high-grade air pipe, a low-grade air pipe, an auxiliary box cylinder, a preselection valve, and an air circuit control valve.

[0028] The single H strobe valve consists of a valve body, a valve core and a valve sleeve arranged in the valve body, a piston and a return spring arranged in the valve body, a low-grade exhaust hole, an inlet, a high-grade exhaust hole, and a low-grade exhaust hole arranged on the valve body wall. Air intake holes, high-grade air intake holes; return springs and piston chambers are respectively arranged at both ends of the piston. When the return spring is in the original position, the sealing ring and the valve sleeve work together to seal, the inlet is connected to the high-grade air intake hole, the low-...

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Abstract

The invention relates to a heavy truck transmission with main and auxiliary box structures and a single H gate valve for the transmission. On the basis of an existing heavy truck transmission with the main and auxiliary box structures, a brand-new gas path is adopted, a double-H valve is canceled, a gas path control valve and the single H gate valve are additionally arranged for jointly controlling the gas path, the gas path control valve is used for controlling on and off of a high-gear gas path, the single H gate valve is used for controlling conversion of a high gear and a low gear, and a conversion switch is integrated in a preselector valve, so that the operation is simpler and clearer, and the probability of mis-operation of gear engaging is greatly reduced; meanwhile, the structure of an operation device can be simplified, and the assembling difficulty is reduced. The single H gate valve is mainly applied to an 8-speed transmission and a 9-speed transmission of an applicant, the gear shift comfortableness and the operation reliability are greatly improved.

Description

technical field [0001] The invention relates to a heavy-duty vehicle transmission adopting a main and auxiliary box structure and a single H strobe valve technology used in the transmission. Background technique [0002] With the continuous development of the heavy-duty vehicle industry and the intensification of market competition, OEMs have higher and higher requirements for the reliability and handling comfort of gearboxes. [0003] In the traditional air circuit, the on-off of the air circuit and the conversion of high and low gears are all controlled by double H valves. The structure of the air valve is complex, and the selection and shifting strokes are inconsistent, which may easily cause accidental shifting and other situations. [0004] The traditional air circuit has two neutral positions, corresponding to the position of the upper cover guide block and the arrangement of gear positions as follows: Figure 5 . Since the corresponding position of the guide block is...

Claims

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Application Information

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IPC IPC(8): F16K11/044F16K31/122
CPCF16K11/044F16K31/1221
Inventor 孙鹏费逢宇孙春艳
Owner SHAANXI FAST GEAR CO
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