CN213331758U

CN213331758U - Hydraulic valve group for vertical arch frame trolley

Info

Publication number: CN213331758U
Application number: CN202022402016.9U
Authority: CN
Inventors: 徐平平; 李艳明; 刘领兵; 王宗杰
Original assignee: Henan Wei Bang Machinery Co ltd
Current assignee: Henan Wei Bang Machinery Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-01
Anticipated expiration: 2030-10-26

Abstract

The utility model relates to an bow member platform truck technical field, concretely relates to hydraulic pressure valves for founding bow member platform truck, including first oil inlet, second oil inlet, first oil return mouth, second oil return mouth, first working oil mouth, second working oil mouth, third working oil mouth, pressure measurement mouth, first solenoid valve, second solenoid valve, first check valve, second check valve, first solenoid valve and second solenoid valve all are provided with P end interface, A end interface, B end interface, T end interface, the utility model aims at realizing cantilever crane emergency system and motor zero load start-up function through above part interact, make the work of founding the bow member platform truck more reliable, guarantee to found the bow member platform truck and can continuous action, can not produce the influence to tunnel bow member operation, cantilever crane emergency system convenient operation is swift moreover. The motor zero load starting effectively improves the stability of the whole system and prolongs the service life of the motor pump set.

Description

Hydraulic valve group for vertical arch frame trolley

Technical Field

The utility model relates to an bow member platform truck technical field, concretely relates to hydraulic pressure valves for founding bow member platform truck.

Background

With the rapid development of the traffic industry in China and the acceleration of the pace of road, railway and subway construction, the mechanization level of tunnel construction in China is continuously improved. After the tunnel is excavated, in order to control the proper amount of stress release and deformation of surrounding rocks and prevent local instability or large-area collapse of a tunnel body caused by factors such as a weak rock stratum, surrounding rock breakage, serious water seepage and the like, the tunnel body is supported and installed in time to increase the structural safety and facilitate construction. The vertical arch frame trolley is matched with a spraying machine, a jumbolter and the like to form comprehensive mechanical tunnel construction.

The traditional vertical arch frame trolley has the following problems due to the design of a hydraulic valve group: 1. the oil pump is started with load, the service lives of the oil pump and the motor are reduced, and the noise of the starting with load is high; 2. the emergency system is incomplete, and when the motor and the oil pump have faults, the arm support cannot be controlled to act, so that a hydraulic valve bank which is reliable in work, high in stability and convenient to use is needed to overcome the problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the embodiment of the utility model provides a hydraulic pressure valves for founding bow member platform truck, including first oil inlet, second oil inlet, first oil return mouth, second oil return mouth, first working oil mouth, second working oil mouth, third working oil mouth, pressure measurement mouth, first solenoid valve, second solenoid valve, first check valve, second check valve, first solenoid valve and second solenoid valve all are provided with P end interface, A end interface, B end interface, T end interface, P end interface on the first solenoid valve with first oil inlet intercommunication, A end interface on the first solenoid valve with first working oil mouth intercommunication, B end interface on the first solenoid valve and the oil inlet end of first check valve, third working oil mouth intercommunication, T end interface on the first solenoid valve and first oil return mouth, T end interface on the second solenoid valve, B end interface on the second solenoid valve, And the second oil return port is communicated, the second oil inlet is communicated with the oil inlet end of the second one-way valve, and a P-end port on the second electromagnetic valve is communicated with the oil outlet end of the first one-way valve, the oil outlet end of the second one-way valve, the second working oil port and the pressure measuring port.

Further, the first solenoid valve and the second solenoid valve are both two-position four-way solenoid valves.

Further, an A-end interface on the second electromagnetic valve is in a closed state.

The utility model discloses beneficial effect does: the utility model discloses a set up first oil inlet, the second oil inlet, first oil return mouth, the second oil return mouth, first work hydraulic fluid port, the second work hydraulic fluid port, the third work hydraulic fluid port, the pressure measurement mouth, first solenoid valve, the second solenoid valve, first check valve, the second check valve, realized cantilever crane emergency system and motor zero load start function through above part interact, the work that makes upright bow member platform truck is more reliable, it can the continuous action to have guaranteed to upright bow member platform truck, can not exert an influence to the neutral bow member operation in the tunnel, cantilever crane emergency system convenient operation is swift moreover. The motor zero load starting effectively improves the stability of the whole system and prolongs the service life of the motor pump set.

Drawings

Fig. 1 is a schematic structural view of the main view of the present invention.

In the figure: 1. a first solenoid valve; 2. a first check valve; 3. a second one-way valve; 4. a second solenoid valve; 5. a first working oil port; 6. a second working oil port; 7. a third working oil port; 8. a first oil inlet; 9. a second oil inlet; 10. a first oil return port; 11. a second oil return port; 12. and a pressure measuring port.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, a hydraulic valve set for an arch center erecting trolley comprises a first oil inlet 8, a second oil inlet 9, a first oil return port 10, a second oil return port 11, a first working oil port 5, a second working oil port 6, a third working oil port 7, a pressure measuring port 12, a first electromagnetic valve 1, a second electromagnetic valve 4, a first check valve 2 and a second check valve 3, wherein the first electromagnetic valve 1 and the second electromagnetic valve 4 are two-position four-way electromagnetic valves, the first electromagnetic valve 1 and the second electromagnetic valve 4 are respectively provided with a P-end interface, an a-end interface, a B-end interface and a T-end interface, the P-end interface on the first electromagnetic valve 1 is communicated with the first oil inlet 8, the a-end interface on the first electromagnetic valve 1 is communicated with the first working oil port 5, the B-end interface on the first electromagnetic valve 1 is communicated with an oil inlet end of the first check valve 2 and the third working oil port 7, the T-end interface on the first electromagnetic valve 1 is communicated with the first, The T-end interface on the second electromagnetic valve 4, the B-end interface on the second electromagnetic valve 4 and the second oil return port 11 are communicated, the second oil inlet 9 is communicated with the oil inlet end of the second check valve 3, the P-end interface on the second electromagnetic valve 4 is communicated with the oil outlet end of the first check valve 2, the oil outlet end of the second check valve 3, the second working oil port 6 and the pressure measuring port 12, and the A-end interface on the second electromagnetic valve 4 is in a closed state.

When the hydraulic control system is used, the first oil inlet 8 is communicated with an engine pump group, the second oil inlet 9 is communicated with a motor pump group, the first working oil port 5 is communicated with a chassis hydraulic system, the second working oil port 6 and the third working oil port 7 are communicated with an arm support hydraulic system, the first oil return port 10 and the second oil return port 11 are communicated with an oil tank, the pressure measuring port 12 is communicated with a sensor and used for measuring the characteristics of a hydraulic valve group, when the first electromagnetic valve 1 is not powered, the first electromagnetic valve 1 is reversed to enable the P-end port on the first electromagnetic valve 1 to be communicated with the A-end port, oil in the engine pump group enters through the first oil inlet 8, exits from the first working oil port 5 and enters the chassis hydraulic system, and the functions of chassis steering, braking and the like; the oil of the motor pump set flows through the second oil inlet 9, flows through the second check valve 3 and flows out of the second working oil port 6 to enter the boom hydraulic system, boom movement is achieved, when the motor pump set breaks down, the first electromagnetic valve 1 is electrified, the first electromagnetic valve 1 is reversed, a port at the P end of the first electromagnetic valve 1 is communicated with a port at the B end, the oil of the engine pump set flows through the first oil inlet 8, flows into the second working oil port 6 and flows out of the third working oil port 7 to enter the boom hydraulic system, boom movement is achieved, and accordingly boom emergency function is achieved.

When the motor is started, the second electromagnetic valve 4 is powered on, the second electromagnetic valve 4 is reversed to enable the P-end port on the second electromagnetic valve 4 to be communicated with the B-end port, oil of the motor pump set passes through the second oil inlet 9, flows through the second one-way valve 3 and the second electromagnetic valve 4, flows back to the oil tank through the second oil return port 11, and is powered off after being normally started, so that zero-load starting of the motor is achieved, and the service life of the motor pump set is prolonged.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic pressure valves for standing bow member platform truck which characterized in that: the electromagnetic valve comprises a first oil inlet, a second oil inlet, a first oil return port, a second oil return port, a first working oil port, a second working oil port, a third working oil port, a pressure measuring port, a first electromagnetic valve, a second electromagnetic valve, a first check valve and a second check valve, wherein the first electromagnetic valve and the second electromagnetic valve are respectively provided with a P-end port, an A-end port, a B-end port and a T-end port, the P-end port on the first electromagnetic valve is communicated with the first oil inlet, the A-end port on the first electromagnetic valve is communicated with the first working oil port, the B-end port on the first electromagnetic valve is communicated with the oil inlet end of the first check valve and the third working oil port, the T-end port on the first electromagnetic valve is communicated with the first oil return port, the T-end port on the second electromagnetic valve, the B-end port on the second electromagnetic valve and the second oil return port, and the second oil inlet is communicated with the oil inlet end, and a P-end interface on the second electromagnetic valve is communicated with the oil outlet end of the first one-way valve, the oil outlet end of the second one-way valve, the second working oil port and the pressure measuring port.

2. A hydraulic valve block for an arch erecting trolley according to claim 1 and wherein: the first electromagnetic valve and the second electromagnetic valve are two-position four-way electromagnetic valves.

3. A hydraulic valve block for an arch erecting trolley according to claim 1 and wherein: and the port A on the second electromagnetic valve is in a closed state.