Pressure regulating valve for high-pressure pump of machine tool

Abstract

The utility model relates to the technical field of pressure regulating valves, and discloses a machine tool high-pressure pump pressure regulating valve which comprises a valve body, a second pipeline and a third pipeline are installed on the left side and the right side of the valve body respectively, the second pipeline and the third pipeline are located on the same straight line, and a valve deck is installed at the top of the valve body. And the top of the valve cover is in threaded connection with an adjusting screw rod. According to the pressure regulating valve for the high-pressure pump of the machine tool, a safety valve is installed on the side face of a second pipeline through a first pipeline and used for relieving pressure and improving the stability of the pressure regulating valve, a second gasket is installed between a valve body and a valve cover, and an adjusting screw is in threaded connection with the top of the valve cover and used for adjusting pressure; a third gasket is installed on the side face of the second connecting base, the first gasket and the third gasket are both made of rubber, the sealing performance is improved, a valve element is installed at the bottom of the second connecting base, a sliding groove is formed in the valve body, the valve element is slidably connected into the sliding groove, the valve element can be guided to move, and the stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressure regulating valve, concretely is machine tool high pressure pump pressure regulating valve. BACKGROUND

[0002] Hydraulic system is widely used in machine tool, is mainly used for providing power to drive various mechanical parts, high pressure pump is the power source of hydraulic system, is responsible for pressurizing liquid to meet the demand of mechanical movement, pressure regulating valve is responsible for maintaining and regulating the pressure in the system in the hydraulic system.

[0003] Some high pressure pump pressure regulating valves may have insufficient pressure regulation accuracy when facing large flow or fast flowing liquid, affecting the stability of the pressure regulating valve, which may affect the quality of workpiece machining, some high pressure pump pressure regulating valves are relatively complex in design, occupy a large space and are heavy, and have small flexibility. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides machine tool high pressure pump pressure regulating valve to solve the problems in the above background art.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: machine tool high pressure pump pressure regulating valve, including valve body, the left side and the right side of valve body are installed with second pipeline and third pipeline respectively, second pipeline and third pipeline are located on the same straight line, the top of valve cover is installed with adjusting screw rod, the inside of valve cover is connected with first connecting seat slidingly, the inside of valve body is installed with first baffle and second baffle, first baffle is located above second baffle.

[0008] Preferably, the bottom of the first connecting seat is connected with a spring, the other end of the spring is fixedly connected with a second connecting seat, the top of the side surface of the second connecting seat is installed with a diaphragm, and the diaphragm is clamped between the valve body and the valve cover.

[0009] Preferably, the outside of the first connecting seat is installed with a first gasket, the outside of the second connecting seat is installed with a third gasket, and the material of the first gasket and the third gasket is rubber.

[0010] Preferably, recesses are formed in the top of the valve body and the bottom of the valve cover, a second gasket is installed in the recess, and the material of the second gasket is rubber.

[0011] Preferably, a first pipeline is installed on the side surface of the second pipeline, a safety valve is installed on the top of the first pipeline, and a pressure sensor is installed on the top of the third pipeline.

[0012] Preferably, the second connecting seat bottom is fixedly connected with a valve core, and the inner side bottom of the valve body is provided with a sliding groove, and the bottom of the valve core is slidably connected in the inner side of the sliding groove.

[0013] Preferably, the middle part of the valve core is fixedly connected with a mounting seat, the mounting seat is attached to the bottom of the second partition plate, the fourth gasket is installed on the top of the mounting seat, and the fourth gasket is made of rubber.

[0014] Compared with the prior art, the machine tool high-pressure pump pressure regulating valve has the following beneficial effects: the machine tool high-pressure pump pressure regulating valve, the left side and the right side of the valve body are respectively provided with the second pipeline and the third pipeline, the safety valve is installed on the side of the second pipeline through the first pipeline, is used for pressure relief, improves the stability of the pressure regulating valve, the second gasket is installed between the valve body and the valve cover, improves the sealing performance, the adjusting screw is screw-connected on the top of the valve cover, the adjusting screw is used for adjusting the pressure, the first gasket is installed on the side of the first connecting seat, the third gasket is installed on the side of the second connecting seat, the first gasket and the third gasket are both made of rubber, improves the sealing performance, the valve core is installed at the bottom of the second connecting seat, the sliding groove is arranged in the valve body, the valve core is slidably connected in the sliding groove, can guide the movement of the valve core, and improves the stability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a diaphragm structure schematic view of the utility model;

[0017] Figure 3 It is a spring structure schematic view of the utility model;

[0018] Figure 4 It is a valve core structure schematic view of the utility model.

[0019] In the drawing: 1, valve body;2, first pipeline;3, second pipeline;4, safety valve;5, adjusting screw;6, pressure sensor;7, valve cover;8, first connecting seat;9, first gasket;10, spring;11, recess;12, second gasket;13, diaphragm;14, first partition plate;15, second connecting seat;16, third gasket;17, second partition plate;18, fourth gasket;19, third pipeline;20, mounting seat;21, valve core;22, sliding groove. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] As shown in Figures 1-4 The utility model provides a technical scheme: machine tool high pressure pump pressure regulating valve, including valve body 1, the left side and the right side of valve body 1 are installed with second pipeline 3 and third pipeline 19 respectively, and second pipeline 3 and third pipeline 19 are located on same straight line, and valve body 1 top is installed with valve cover 7, and valve cover 7 top is connected with adjusting screw rod 5, and valve cover 7 inside is connected with first connecting seat 8 slidingly, and the inside of valve body 1 is installed with first baffle 14 and second baffle 17, and first baffle 14 is located above second baffle 17.

[0022] Further, the bottom of first connecting seat 8 is connected with spring 10, the other end of spring 10 is fixedly connected with second connecting seat 15, the top of the side surface of second connecting seat 15 is installed with diaphragm 13, and diaphragm 13 is clamped between valve body 1 and valve cover 7.

[0023] Specifically, the predetermined pressure of spring 10 can be adjusted by adjusting screw rod 5, when the pressure on both sides of diaphragm 13 is inconsistent, the pressure regulating valve is maintained in a balanced state of opening or closing, so that the internal pressure of the valve is in a stable state, and the safety is improved.

[0024] Further, the outside of first connecting seat 8 is installed with first gasket 9, and the outside of second connecting seat 15 is installed with third gasket 16, and the material of first gasket 9 and third gasket 16 is rubber.

[0025] Specifically, the first gasket 9 and the third gasket 16 of rubber material have good elasticity and sealing performance, can adapt to certain pressure and temperature change, and improve the stability of the pressure regulating valve.

[0026] Further, the top of valve body 1 and the bottom of valve cover 7 are provided with grooves 11, and the second gasket 12 is installed in the grooves 11, and the material of the second gasket 12 is rubber.

[0027] Specifically, the second gasket 12 ensures that a good seal is formed between the valve body 1 and the valve cover 7, preventing leakage of gas or liquid, thereby ensuring normal operation and safety of the equipment.

[0028] Further, the side of second pipeline 3 is installed with first pipeline 2, the top of first pipeline 2 is installed with safety valve 4, and the top of third pipeline 19 is installed with pressure sensor 6.

[0029] Specifically, the safety valve 4 can ensure automatic release of pressure when the pressure exceeds the preset range, protecting the pressure regulating valve from damage, and the pressure sensor 6 monitors the pressure at the outlet to facilitate adjustment.

[0030] Further, the second connecting seat 15 is fixedly connected with a valve core 21 at the bottom, and a sliding groove 22 is formed in the inner bottom of the valve body 1, and the bottom of the valve core 21 is slidingly connected to the inner side of the sliding groove 22.

[0031] Specifically, the sliding groove 22 can guide the movement of the valve core 21 to adjust the opening and closing state of the pressure regulating valve and improve stability.

[0032] Further, the mounting seat 20 is fixedly connected to the middle part of the valve core 21, the mounting seat 20 is attached to the bottom of the second partition plate 17, the fourth gasket 18 is installed on the top of the mounting seat 20, and the fourth gasket 18 is made of rubber.

[0033] Specifically, the mounting seat 20 and the fourth gasket 18 can ensure that the pressure regulating valve can be completely closed when not in use, improving the sealing performance.

[0034] Working principle: first, the second pipeline 3 and the third pipeline 19 are respectively installed on the left side and the right side of the valve body 1, the safety valve 4 is installed on the side of the second pipeline 3 through the first pipeline 2 for pressure relief, the valve cover 7 is installed on the top of the valve body 1, the adjusting screw 5 is threadedly connected to the top of the valve cover 7, the first connecting seat 8 is slidingly connected to the inside of the valve cover 7, the first connecting seat 8 is located at the bottom of the adjusting screw 5, the spring 10 is installed between the first connecting seat 8 and the second connecting seat 15, the adjusting screw 5 is used to apply a predetermined pressure to the spring 10 to adjust the pressure, secondly, the first partition plate 14 and the second partition plate 17 are installed on the inner side of the valve body 1, the first partition plate 14 is located above the second partition plate 17, the first gasket 9 is installed on the side of the first connecting seat 8, the third gasket 16 is installed on the side of the second connecting seat 15, the first gasket 9 and the third gasket 16 are both made of rubber to improve the sealing performance, and finally, the valve core 21 is installed at the bottom of the second connecting seat 15, the sliding groove 22 is formed in the inside of the valve body 1, and the valve core 21 is slidingly connected to the inside of the sliding groove 22, so that the valve core 21 can freely and smoothly slide in the valve body 1.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure regulating valve for a machine tool high pressure pump, comprising a valve body (1), characterised in that: The left side and the right side of the valve body (1) are respectively provided with a second pipeline (3) and a third pipeline (19), the second pipeline (3) and the third pipeline (19) are located on the same straight line, the top of the valve body (1) is provided with a valve cover (7), the top of the valve cover (7) is threadedly connected with an adjusting screw (5), the inside of the valve cover (7) is slidably connected with a first connecting seat (8), the inner side of the valve body (1) is provided with a first partition plate (14) and a second partition plate (17), the first partition plate (14) is located above the second partition plate (17).

2. Machine tool high-pressure pump pressure regulating valve according to claim 1, characterized in that The bottom of the first connecting seat (8) is connected with a spring (10), the other end of the spring (10) is fixedly connected with a second connecting seat (15), the top of the side surface of the second connecting seat (15) is provided with a diaphragm (13), the diaphragm (13) is clamped between the valve body (1) and the valve cover (7).

3. Machine tool high-pressure pump pressure regulating valve according to claim 2, characterized in that The outer side of the first connecting seat (8) is provided with a first gasket (9), the outer side of the second connecting seat (15) is provided with a third gasket (16), the materials of the first gasket (9) and the third gasket (16) are rubber.

4. The machine tool high pressure pump pressure regulating valve according to claim 1, characterized by: The top of the valve body (1) and the bottom of the valve cover (7) are provided with a recess (11), the inside of the recess (11) is provided with a second gasket (12), the material of the second gasket (12) is rubber.

5. The machine tool high pressure pump pressure regulating valve according to claim 1, characterized by: The side surface of the second pipeline (3) is provided with a first pipeline (2), the top of the first pipeline (2) is provided with a safety valve (4), the top of the third pipeline (19) is provided with a pressure sensor (6).

6. The machine tool high pressure pump pressure regulating valve according to claim 3, characterized by: The bottom of the second connecting seat (15) is fixedly connected with a valve core (21), the inner bottom of the valve body (1) is provided with a sliding groove (22), the bottom of the valve core (21) is slidably connected to the inside of the sliding groove (22).

7. The machine tool high-pressure pump pressure regulating valve according to claim 6, characterized by: The middle part of the valve core (21) is fixedly connected with a mounting seat (20), the mounting seat (20) is attached to the bottom of the second partition plate (17), the top of the mounting seat (20) is provided with a fourth gasket (18), the material of the fourth gasket (18) is rubber.

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