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Hydraulic parking and emergency trailer control device and wheeled engineering vehicle

A control device and engineering vehicle technology, applied in the direction of brake transmission, vehicle components, brakes, etc., can solve the problem that the vehicle cannot be released from parking, and achieve the effect of improving parking control performance, improving service life, and improving intelligence

Active Publication Date: 2021-06-11
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the vehicle parking cannot be released after the vehicle loses power, the invention provides a hydraulic parking and emergency trailer control device and a wheeled engineering vehicle. The hydraulic parking and emergency trailer control device can realize the parking of the wheeled vehicle. Vehicle brake release, stable parking, emergency towing, automatic parking on slopes, automatic driving release and other functions provide intelligent control for driving and parking of wheeled engineering vehicles

Method used

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  • Hydraulic parking and emergency trailer control device and wheeled engineering vehicle
  • Hydraulic parking and emergency trailer control device and wheeled engineering vehicle
  • Hydraulic parking and emergency trailer control device and wheeled engineering vehicle

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] A hydraulic parking and emergency trailer control device, comprising a DC motor pump 14, a first two-two three-way reversing valve 3, a second two-two three-way reversing valve 13, a shuttle valve 9 and a first two-two two-way reversing valve The hydraulic oil can pass through the DC motor pump 14, the second two-position three-way reversing valve 13, the shuttle valve 9 and the first two-two-way reversing valve 4 in sequence, and then from the first two-two-way reversing valve 4 port 2 output, such as figure 1 and figure 2 shown.

[0022] In this embodiment, the oil port 1 of the first two-two three-way reversing valve 3 communicates with the oil port 1 of the shuttle valve 9, and t...

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Abstract

The invention provides a hydraulic parking and emergency trailer control device and a wheeled engineering vehicle. The hydraulic parking and emergency trailer control device comprises a direct-current motor pump (14), a first two-position three-way reversing valve (3), a second two-position three-way reversing valve (13), a shuttle valve (9) and a first two-position two-way reversing valve (4); hydraulic oil can sequentially pass through the direct-current motor pump (14), the second two-position three-way reversing valve (13), the shuttle valve (9) and the first two-position two-way reversing valve (4) and then is output from an oil port 2 of the first two-position two-way reversing valve (4). The hydraulic parking and emergency trailer control device can realize the functions of parking brake release, stable parking, emergency trailing, ramp automatic parking, running automatic release and the like of a wheeled vehicle, and provides intelligent control for running and parking of the wheeled engineering vehicle.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a hydraulic parking and emergency trailer control device, and a wheeled engineering vehicle. Background technique [0002] The parking of traditional wheeled engineering vehicles is usually controlled by a manual flexible shaft. This operating mechanism has a large operating force, a large operating stroke, and a large installation space for the operating mechanism. Due to the existence of these defects, it is gradually replaced by air-controlled and hydraulic-controlled parking brakes replaced. Although the hydraulic control parking or air control parking solves the problem of humanized design and installation layout, it also has the problem that the vehicle parking cannot be released after the vehicle loses power, which brings constraints to the rescue work such as tow trucks. Contents of the invention [0003] In order to solve the problem that the vehicle parking c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68B60T17/22
CPCB60T13/686B60T17/228
Inventor 堵利宾周小磊庞文卓李太运李孝瑾
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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