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Quick plug valve group, remote hydraulic control system and engineering vehicle

A technology of inserting valves and valve bodies, which is applied in the direction of transmission control, multi-way valves, valve devices, etc., can solve problems such as damage, inconvenient installation and maintenance, and secondary failures, so as to avoid excessive hydraulic pressure and improve work reliability and stability sexual effect

Pending Publication Date: 2021-05-07
XCMG CONSTR MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the multiple access or continuous access of external oil sources is also restricted by various conditions, and the excessively high pressure will cause damage to the actuators of the faulty vehicle and cause secondary failures, causing the vehicle to completely lose its working function.
[0003] In addition, in order to adapt to the narrow working space and improve the competitive advantage, construction machinery tends to be low-cost, high-speed, and low-fuel consumption. It requires construction machinery to be lightweight and small in size, resulting in a narrow layout of the hydraulic system of construction machinery, which is inconvenient. Installation and Maintenance

Method used

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  • Quick plug valve group, remote hydraulic control system and engineering vehicle
  • Quick plug valve group, remote hydraulic control system and engineering vehicle
  • Quick plug valve group, remote hydraulic control system and engineering vehicle

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Embodiment Construction

[0025] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the examples herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0026] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish diffe...

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Abstract

The invention relates to a quick plug valve group, a remote hydraulic control system and an engineering vehicle. The quick plug valve group comprises a valve body, a third oil duct, a fifth oil duct and an eighth oil duct are formed in the valve body, a safety overflow valve is arranged on a passage of the eighth oil duct, a throttle valve and a manual flow regulating valve are arranged on a passage of the third oil duct, and a connecting point of the third oil duct and the eighth oil duct is located between the throttle valve and the manual flow regulating valve. The throttle valve, the manual flow regulating valve and the safety overflow valve are arranged in the oil duct in the valve body, the throttle valve is used for limiting flow of an external oil source, the manual flow regulating valve is used for manually controlling the flow of the external oil source, and the safety overflow valve is used for limiting the pressure of the external oil source, so that the pressure is kept in a reasonable range, vehicle faults caused by overlarge hydraulic pressure of the external oil source are effectively avoided, and the working reliability and stability are improved.

Description

technical field [0001] The present disclosure relates to the technical field of engineering machinery, in particular to a quick-plug valve group, a remote hydraulic control system and an engineering vehicle. Background technique [0002] With the rapid development of engineering vehicles and the expansion of application fields, the functions of engineering vehicles are diversified. External, for example, engine failure can cause the oil supply oil circuit of the working device to have no driving force and cannot work), so an external pressure oil source needs to be connected. The external oil source can be the pressure oil source of the towing vehicle or a portable manual pump. Specific solutions include but are not limited to installing push-in connectors or similar components on the oil circuit of the brake accumulator (such as pressure measuring connectors, sampling connectors, etc. are also small push-in connectors), and designing a pressure Wire. However, the multiple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K11/10F16H63/34
CPCF15B13/02F15B13/022F16K11/10F16H63/3483F15B2013/002
Inventor 郭振华许敬科魏然
Owner XCMG CONSTR MACHINERY
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