A heavy-duty vehicle transmission control device

A technology for operating devices and gearboxes, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., to achieve the effect of preventing accidental gearing

Active Publication Date: 2016-08-17
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem in the prior art that the interlock between the main box and the rear auxiliary box cannot be realized from the air path, and to provide a heavy-duty interlock between the main box and the rear auxiliary box that can be realized from the air path car gearbox controls

Method used

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  • A heavy-duty vehicle transmission control device
  • A heavy-duty vehicle transmission control device

Examples

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Embodiment 1

[0041] see figure 1 – figure 2 , a heavy-duty vehicle gearbox control device, comprising a gearbox selector shift shaft 1 and a neutral switch 2, said gearbox selector shift shaft 1 is sleeved with a selector shift dial 4 and a guide block sleeve 3, said The neutral guide block 31 fixedly connected on the guide block cover 3 is matched with the contact of the neutral switch 2; the transmission control device also includes a locking cylinder valve 5, a high-low gear switching control valve 6, a main box low-speed cut-off valve 7 and The reverse gear switch 21, the locking pin 53 of the locking cylinder valve 5 is in limited cooperation with the shifting head locking block 41 on the shifting head 4, the piston 64 of the high and low gear switching control valve 6 is in contact with the shifting head 4 The high and low gear switching control guide block 42 on the shifting head 4 is matched, and the shifting head locking block 41 and the high and low gear switching control guide...

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PUM

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Abstract

A gearbox control device for a heavy-duty vehicle comprises a gearbox gear selecting and shifting shaft and a neutral-gear switch. A gear selecting and shifting block and a guide block sleeve connectedly sleeve the gearbox gear selecting and shifting shaft, and a neutral-gear guide block fixedly connected with the guide block sleeve is matched with a contact of the neutral-gear switch. The gearbox control device further comprises a locking air cylinder valve and a high-gear and low-gear shifting control valve, a lock pin of the locking air cylinder valve is in limited fit with a shifting block locking block on the gear selecting and shifting block, a piston of the high-gear and low-gear shifting control valve is matched with a high-gear and low-gear shifting control guide block on the gear selecting and shifting block, and the shifting block locking block and the high-gear and low-gear shifting control guide block are both fixedly connected with a bushing of the gear selecting and shifting block. The gearbox control device for the heavy-duty vehicle is compact in structure, safe and reliable, interlocking between a main box and a rear auxiliary box can be realized, and false gear engagement can be prevented.

Description

technical field [0001] The invention relates to a gearbox control device, in particular to a heavy-duty vehicle gearbox control device, which is particularly suitable for realizing the self-locking and interlocking functions between the main box and the rear auxiliary box, and preventing mistakenly shifting to a low-speed gear when driving at high speed. Background technique [0002] The traditional heavy-duty vehicle gearbox top cover control system can only realize the shift interlock function and the signal feedback function of the idle and reverse gear; it cannot realize the high-speed mistaken low gear function and the self-locking and interlocking between the main box and the rear auxiliary box Features. [0003] The Chinese patent application publication number is CN102384257A, and the invention patent on March 21, 2012 discloses a kind of heavy-duty gearbox selection and shifting control mechanism. It includes a small cover housing assembly, a shift shaft on which a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/18F16H61/22
CPCF16H61/18F16H61/22F16H2061/185
Inventor 蒋鸣李瑾宁杜春鹏占伟郑万生邱华曹辞
Owner DONGFENG COMML VEHICLE CO LTD
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