CN210769655U

CN210769655U - Electromagnetic pilot valve hydraulic test bench

Info

Publication number: CN210769655U
Application number: CN201921647166.7U
Authority: CN
Inventors: 何治国; 郭永强; 韩伟; 王军
Original assignee: Shaanxi Guangtai Mine Electromechanical Equipment Co ltd
Current assignee: Shaanxi Guangtai Mine Electromechanical Equipment Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-16
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses an electromagnetism pilot valve hydraulic pressure testboard relates to hydrovalve integrated test equipment technical field. The test device comprises a workbench, wherein a pneumatic pressure reducing valve, an air-to-liquid pump, a pressurizing liquid box and a plurality of replaceable test tools corresponding to different types of electromagnetic valves are arranged on the workbench, each test tool comprises a base with four interfaces connected with the electromagnetic valves on the upper surface and a clamping part fixed on the upper surface of the base, the clamping part is of a door-shaped frame structure and is connected with the base into a cavity structure, a locking device is arranged at the top of the clamping part, the electromagnetic valves are placed into the cavity structure, when the locking device locks the electromagnetic valves, each interface is hermetically connected with a liquid inlet and a liquid return port on the electromagnetic valves, and two hydraulic oil meters, a tool liquid return port and a liquid inlet interface are arranged on the base; the liquid inlet pipeline is provided with a hydraulic oil meter. Therefore, the technical problem that the electromagnetic pilot valve hydraulic test bench in the prior art is single in function and only faces to a specific single product is solved.

Description

Electromagnetic pilot valve hydraulic test bench

Technical Field

The utility model relates to a hydrovalve integrated test equipment technical field, more specifically say, relate to an electromagnetism pilot valve hydraulic pressure testboard.

Background

At present, hydraulic support electrohydraulic control systems are mostly used in mobile working faces of coal mines, and ceiling support is realized through the hydraulic systems. One of the control cores of the hydraulic system is an electromagnetic pilot valve, and due to the fact that the underground working environment is severe, moisture, high salt, coal dust and gangue are all main causes of damage of the electromagnetic pilot valve; meanwhile, as the hydraulic system manufacturers are numerous, the structural designs of the hydraulic elements of the manufacturers are different, and the maintenance workload of the hydraulic system is large due to the two points. Once a certain hydraulic component fails, the whole hydraulic system can possibly fail to work normally, which can affect the normal production of the whole mine, so how to repair the electromagnetic pilot valve timely and quickly is a key ring for ensuring the normal production of the coal mine.

Through the development of the last decade, the hydraulic testing technology is gradually shifted to the testing technology concerning dynamic performance, microscopic characteristics, system matching performance and the like from the traditional steady-state testing which is mainly used and only meets some necessary working stress and environmental stress simulation. For a long time, due to the factors of few independent intellectual property rights of domestic hydraulic products, large investment of test equipment and the like, the hydraulic test technology is not deeply utilized and effectively paid attention. The electromagnetic pilot valve hydraulic test bench has the main functions of testing whether the working performance of the repaired electromagnetic pilot valve is good or not and completing repair, the existing electromagnetic pilot valve hydraulic test bench is single in function and only faces to a specific single product, the connection of a hydraulic product and test equipment is complex, the assembly and disassembly are complex, labor is wasted, the efficiency is low, and the dripped oil is not environment-friendly.

Therefore, how to solve the technical problem that the hydraulic test bench of the electromagnetic pilot valve in the prior art has a single function and is only oriented to a specific single product becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electromagnetism pilot valve hydraulic pressure testboard exists in order to solve prior art electromagnetism pilot valve hydraulic pressure testboard function singleness, only towards the technical problem of specific single product. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an electromagnetism pilot valve hydraulic pressure testboard, comprises a workbench, be equipped with the pneumatic relief pressure valve, the air-to-liquid pump, the liquid case of suppressing and a plurality of solenoid valve and the removable test fixture that correspond different models of adjusting inlet pressure on the workstation, each test fixture all include the upper surface have with the base of four interfaces that solenoid valve inlet and return the liquid mouth and be connected with fixing of base upper surface be used for the joint portion of solenoid valve, joint portion is door type frame construction, its with the base is connected to the cavity structure, and its top is equipped with and is used for locking the locking device of solenoid valve will the solenoid valve is put into in the cavity structure, locking device locks during the solenoid valve, each the interface with on the solenoid valve the inlet with return the equal airtight connection of liquid mouth, be equipped with two hydraulic oil meters on the base, The liquid inlet interface is respectively communicated with the liquid inlet of the electromagnetic valve through the hydraulic oil meter, and the tool liquid return port is connected with the liquid return port of the electromagnetic valve; the pneumatic pressure reducing valve is respectively connected with an external air source and the air-to-liquid pump through an air pipe; the air-to-liquid pump is connected with the pressurizing liquid tank through a liquid pipe, and is connected with the liquid inlet interface through the liquid inlet pipeline; the liquid inlet pipeline is provided with the hydraulic oil meter for detecting liquid inlet pressure.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, a power box and an electromagnetic valve driving head which is electrically connected with the power box and used for testing the electrical property of the electromagnetic pilot valve are arranged on the workbench.

Furthermore, locking device includes the screw rod and sets up be used for conveniently rotating the handle of screw rod one end, be equipped with on the roof of corresponding cavity structure and supply the screw rod passes through the screw hole.

Further, the workbench is divided into an upper layer and a lower layer, the testing tool is arranged on the upper surface of the upper layer, the pneumatic pressure reducing valve and the power box are both arranged on the lower surface of the upper layer, and the pneumatic liquid transfer pump and the pressurizing liquid box are both arranged on the upper surface of the lower layer; the boundary of the upper layer is provided with a plate-shaped bulge which surrounds the upper layer into a closed groove shape, the surface of the upper layer is provided with a liquid return hole, and the liquid return hole is connected with the pressurizing liquid tank through a liquid return pipeline in a communicating manner.

Furthermore, the liquid inlet pipeline and the liquid return pipeline are both provided with filter elements for filtering impurities in the emulsion.

Furthermore, a switch for controlling the on-off of the liquid pipe is arranged on the liquid pipe.

Furthermore, a tool box for placing common tools is arranged on the workbench.

Furthermore, one side of the workbench is provided with a push rod which is convenient for pushing the workbench.

Furthermore, the bottom of the workbench is provided with brake trundles.

Further, the liquid inlet interface is a standard DN10 interface.

In the technical scheme provided by the utility model, the electromagnetic pilot valve hydraulic test bench comprises a workbench, a pneumatic pressure reducing valve for adjusting air inlet pressure, an air-to-liquid pump, a pressurizing liquid box and a plurality of replaceable test tools corresponding to different types of electromagnetic valves are arranged on the workbench, each test tool comprises a base with four interfaces connected with a liquid inlet and a liquid return port of the electromagnetic valve on the upper surface and a clamping part fixed on the upper surface of the base and used for clamping the electromagnetic valve, the clamping part is of a door-shaped frame structure and connected with the base into a cavity structure, the top of the clamping part is provided with a locking device used for locking the electromagnetic valve, the electromagnetic valve is placed into the cavity structure, when the locking device locks the electromagnetic valve, each interface is hermetically connected with the liquid inlet and the liquid return port on the electromagnetic valve, two hydraulic oil meters are arranged on the base, the liquid return port of the tool and a liquid, the liquid inlet interface is respectively communicated with a liquid inlet of the electromagnetic valve through a hydraulic oil meter, and a liquid return port of the tool is connected with a liquid return port of the electromagnetic valve; the pneumatic pressure reducing valve is respectively connected with an external air source and the pneumatic liquid transfer pump through an air pipe; the air-to-liquid pump is connected with the pressurizing liquid tank through a liquid pipe and is connected with the liquid inlet interface through a liquid inlet pipeline; the liquid inlet pipeline is provided with a hydraulic oil meter for detecting liquid inlet pressure. Therefore, the working table is provided with a plurality of hydraulic oil meters which can indicate the liquid inlet pressure and the pressure maintaining pressure, observe dynamic parameters and verify the performance index of a product, and a plurality of replaceable test tools are arranged, so that the universality of the electromagnetic pilot valve hydraulic test table can be enhanced, and the electromagnetic pilot valve hydraulic test table is adaptive to electromagnetic valves of various types; the hydraulic test bench solves the technical problems that the electromagnetic pilot valve hydraulic test bench in the prior art is single in function and only faces to a specific single product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electromagnetic pilot valve hydraulic test bench in an embodiment of the present invention;

fig. 2 is a schematic diagram of a back structure of a test fixture in an embodiment of the present invention;

fig. 3 is a schematic front structural view of the testing tool in the embodiment of the present invention.

In the figure, 1-a workbench, 2-an upper layer, 3-a lower layer, 4-a power box, 5-a pneumatic pressure reducing valve, 6-a testing tool, 61-a clamping part, 62-a base, 63-a cavity structure, 64-a locking device, 641-a screw rod, 642-a handle, 65-a positioning rod, 66-a liquid inlet interface, 67-an interface, 68-a tool liquid return port, 7-a pressurizing liquid box, 8-a pneumatic liquid transfer pump, 9-an air pipe, 10-a liquid pipe, 11-a liquid inlet pipeline, 12-a hydraulic oil meter, 13-an electromagnetic valve driving head, 14-a plate-shaped bulge and 15-a tool box.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An object of this embodiment mode is to provide an electromagnetism pilot valve hydraulic pressure test bench, be equipped with a plurality of hydraulic oil meters on the workstation, can instruct inlet pressure and pressurize pressure, observe dynamic parameter, verify product property ability index, and through the test fixture of change setting on the workstation, reach the purpose of reinforcing its commonality, thereby the solenoid valve of the multiple different models of adaptation, the electromagnetism pilot valve hydraulic pressure test bench function singleness who has solved existence among the prior art, only towards the technical problem of specific single product.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-3, the electromagnetic pilot valve hydraulic test bench provided in this embodiment includes a workbench 1, which is rectangular as a whole, a pneumatic pressure reducing valve 5 for adjusting intake pressure is disposed on the workbench 1 to reach a pressure value required by the electromagnetic pilot valve hydraulic test bench, and further includes an air-to-liquid pump 8, a pressurizing liquid tank 7, and a plurality of replaceable test tools 6 corresponding to different types of electromagnetic valves, wherein the air-to-liquid pump 8 pressurizes emulsion in the pressurizing liquid tank 7 by using an air source as power and sends the emulsion to the test tools 6, and the air-to-liquid pump 8 replaces a conventional oil pump or an emulsion pump, thereby reducing the volume and weight of the equipment; each test tool 6 comprises a base 62 and a clamping part 61 arranged on the base 62 and used for clamping and connecting an electromagnetic valve, the base 62 is a cylinder with a quadrangular cross section, two sets of identical loops are arranged inside the electromagnetic pilot valve, so that the electromagnetic pilot valve is provided with two liquid outlets and two liquid return ports, four connectors 67 used for being hermetically connected with the two liquid inlets and the two liquid outlets of the electromagnetic valve are correspondingly arranged on the upper surface of the base 62, the clamping part 61 is of a door-shaped structure and fixed on the upper surface of the base 62 in a welding mode, a cavity structure 63 used for placing an interface part of the electromagnetic valve is formed by the clamping part and the base 62, and a locking device 64 used for locking the electromagnetic valve is arranged at the top of the cavity structure 63; when the solenoid valve is located in the cavity structure 63, after the solenoid valve is locked by the locking device 64, the two liquid inlets and the two liquid return ports of the solenoid valve are hermetically connected with the four connectors 67 on the base 62.

The base 62 is also provided with two hydraulic oil meters 12, a tool liquid return port 68 and a liquid inlet interface 66 for connecting with the liquid inlet pipeline 11, when the testing tool 6 needs to be replaced, only the liquid inlet interface 66 needs to be detached, so that the testing tool is simple and convenient, has wide applicability, can be adapted to electromagnetic valves of different models, realizes universality, and solves the technical problem that the electromagnetic pilot valve hydraulic testing table in the prior art only faces to a specific single product; the liquid inlet interface 66 is internally divided into two cavities which are respectively connected with a hydraulic oil meter 12 and a liquid inlet of the electromagnetic valve, the two hydraulic oil meters 12 respectively measure the left and right pressure maintaining pressures, observe dynamic parameters and verify the performance of the hydraulic oil meters; the two liquid return ports of the electromagnetic valve are converged into one and connected with the tool liquid return port 68; the pneumatic pressure reducing valve 5 is respectively connected with an external air source and an air-to-liquid pump 8 through an air pipe 9, and the air pipe 9 is a standard air path pipe; the air-to-liquid pump 8 is connected with the pressurizing liquid tank 7 through a liquid pipe 10, and the air-to-liquid pump 8 is connected with a liquid inlet interface 66 through a liquid inlet pipeline 11; the liquid inlet pipeline 11 is provided with the hydraulic oil meter 12 for detecting liquid inlet pressure, and the plurality of hydraulic oil meters 12 solve the problem of single function of the electromagnetic pilot valve.

As an optional implementation manner, the power box 4 and the electromagnetic valve driving head 13 electrically connected to the power box 4 and used for testing the electrical performance of the electromagnetic pilot valve are disposed on the workbench 1, the power box 4 is provided with different output voltage levels and is adjustable, and the electromagnetic valve driving head 13 is connected to the electromagnetic pilot valve, so that the electrical performance of the electromagnetic pilot valve can be measured, and whether the electromagnetic pilot valve is repaired or not is further determined.

In a further preferred embodiment, the locking device 64 includes a screw 641 having an external thread on a side wall thereof and a handle 642 disposed at an end of the screw 641 for facilitating rotation of the screw 641, the handle 642 is an elongated cylinder, and may be provided in different forms as needed as long as the screw 641 is conveniently rotated, and a threaded hole for the screw 641 to pass through is disposed on a top wall of the corresponding cavity structure 63, so that the electromagnetic valve can be stably fixed in the cavity structure 63 by the locking device 64.

What need say, still be equipped with the locating lever 65 that is used for the position solenoid valve position of placing, its concrete screw that is at the upper surface of base 62, so, be equipped with locating lever 65 and can counterpoint each inlet and the liquid outlet and each interface 67 of solenoid valve fast.

In a specific implementation mode, the workbench 1 is divided into an upper layer 2 and a lower layer 3, a gap is arranged between the upper layer 2 and the lower layer 3, the testing tool 6 is arranged on the upper surface of the upper layer 2, the pneumatic pressure reducing valve 5 and the power supply box 4 are both arranged on the lower surface of the upper layer 2 in a bolt fixing mode, the air-to-liquid pump 8 and the pressurizing liquid box 7 are both arranged on the upper surface of the lower layer 3, and the air-to-liquid pump 8 is fixed on the workbench 1 through bolts; the boundary of the upper layer 2 is provided with a plate-shaped bulge 14 which surrounds the upper layer 2 into a closed groove shape, the surface of the upper layer 2 is provided with a liquid return hole, and the liquid return hole is connected with the pressurizing liquid tank 7 in a communicating manner through a liquid return pipeline, so that the emulsion flowing out from the tool liquid return port 68 returns to the pressurizing liquid tank 7 through the liquid return hole and the liquid return pipeline, and automatic liquid return is realized.

As an optional implementation mode, filter elements for filtering impurities in the emulsion are arranged on the liquid inlet pipeline 11 and the liquid return pipeline, the filter elements are 40 micrometers, and the filter elements are arranged at the end parts of the liquid inlet pipeline 11 and the liquid return pipeline and are convenient to replace.

In a further embodiment, a switch for controlling the on-off of the liquid pipe 10 is arranged on the liquid pipe 10 and is arranged at the joint of the liquid pipe 10 and the pressurizing liquid tank 7, so that the liquid pipe is opened when in use and is closed when not in use, and the control of the liquid pipe is realized.

As an alternative embodiment, the work table 1 is provided with a tool box 15 for placing common tools, the tool box 15 is a rectangular box, one side of which can be opened, and the tool box 15 is placed on the lower surface of the upper layer 2, adjacent to the power supply box 4, and is also fixed by bolts. Thus, the tool box 15 is provided to facilitate the placement and storage of necessary tools by a person.

Further embodiment, one side of workstation 1 is equipped with the push rod that conveniently promotes workstation 1, and the push rod is the stock of buckling, for stainless steel, fixes on workstation 1 through the welded mode, so, is equipped with the push rod, does benefit to the removal of promotion workstation 1, and stainless steel is difficult for rustting increase of service life.

The preferred embodiment, 1 bottom of workstation is equipped with the brake truckle, and it sets up four corners of workstation 1, so, is equipped with the brake truckle, and on the one hand conveniently promotes, and on the other hand can fix at any time and locate the position at present, tests.

In a specific embodiment, the liquid inlet interface 66 is a standard DN (nominal diameter) 10 interface, which is a standard interface and has a wider applicability.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The electromagnetic pilot valve hydraulic test bench is characterized by comprising a workbench (1), wherein a pneumatic pressure reducing valve (5) for adjusting air inlet pressure, an air-to-liquid pump (8), a pressurizing liquid box (7) and a plurality of replaceable test tools (6) corresponding to electromagnetic valves of different models are arranged on the workbench (1), each test tool (6) comprises a base (62) of which the upper surface is provided with four interfaces (67) connected with a liquid inlet and a liquid return port of the electromagnetic valve and a clamping part (61) which is fixed on the upper surface of the base (62) and used for clamping the electromagnetic valve, the clamping part (61) is of a door-shaped frame structure and is connected with the base (62) to form a cavity structure (63), the top of the clamping part is provided with a locking device (64) used for locking the electromagnetic valve, and the electromagnetic valve is placed in the cavity structure (63), when the electromagnetic valve is locked by the locking device (64), each interface (67) is hermetically connected with the liquid inlet and the liquid return port on the electromagnetic valve, two hydraulic oil meters (12), a tool liquid return port (68) and a liquid inlet interface (66) used for being connected with a liquid inlet pipeline (11) are arranged on the base (62), the liquid inlet interface (66) is respectively communicated with the liquid inlet of the electromagnetic valve through the hydraulic oil meters (12), and the tool liquid return port (68) is connected with the liquid return port of the electromagnetic valve; the pneumatic pressure reducing valve (5) is respectively connected with an external air source and the air-to-liquid pump (8) through an air pipe (9); the air-to-liquid pump (8) is connected with the pressurizing liquid tank (7) through a liquid pipe (10), and the air-to-liquid pump (8) is connected with the liquid inlet interface (66) through the liquid inlet pipeline (11); the liquid inlet pipeline (11) is provided with the hydraulic oil meter (12) for detecting liquid inlet pressure.

2. The hydraulic test bench for the electromagnetic pilot valve according to claim 1, wherein a power supply box (4) and an electromagnetic valve driving head (13) electrically connected with the power supply box (4) and used for testing the electrical performance of the electromagnetic pilot valve are arranged on the workbench (1).

3. The electromagnetic pilot valve hydraulic test bench according to claim 1, wherein said locking device (64) comprises a screw rod (641) and a handle (642) disposed at one end of said screw rod (641) for facilitating rotation of said screw rod (641), and a threaded hole for passing said screw rod (641) is disposed on a top wall of said corresponding cavity structure (63).

4. The hydraulic test bench for the electromagnetic pilot valve according to claim 2, wherein the workbench (1) is divided into an upper layer (2) and a lower layer (3), the test tool (6) is arranged on the upper surface of the upper layer (2), the pneumatic pressure reducing valve (5) and the power supply box (4) are both arranged on the lower surface of the upper layer (2), and the pneumatic liquid transfer pump (8) and the pressurizing liquid box (7) are both arranged on the upper surface of the lower layer (3); the boundary of the upper layer (2) is provided with a plate-shaped bulge (14) which surrounds the upper layer (2) into a closed groove shape, the surface of the upper layer (2) is provided with a liquid return hole, and the liquid return hole is connected with the pressurizing liquid tank (7) through a liquid return pipeline in a communicating manner.

5. The hydraulic test bench for the electromagnetic pilot valve according to claim 4, wherein both the liquid inlet pipeline (11) and the liquid return pipeline are provided with filter elements for filtering impurities in the emulsion.

6. The electromagnetic pilot valve hydraulic test bench according to claim 1, wherein a switch for controlling the on-off of the liquid pipe (10) is arranged on the liquid pipe (10).

7. The electromagnetic pilot valve hydraulic test bench according to claim 1, characterized in that the work bench (1) is provided with a tool box (15) for placing common tools.

8. The electromagnetic pilot valve hydraulic test bench according to claim 1, characterized in that one side of the workbench (1) is provided with a push rod for conveniently pushing the workbench (1).

9. The electromagnetic pilot valve hydraulic test bench according to claim 1, characterized in that the bottom of the workbench (1) is provided with brake casters.

10. The electromagnetic pilot valve hydraulic test bench according to claim 3, characterized in that said inlet interface (66) is a standard DN10 interface.