CN214092173U - High-efficient long-life three-cylinder high pressure plunger pump - Google Patents

Abstract

The utility model relates to a high-pressure plunger pump technical field, concretely relates to high-efficient long-life triplex high-pressure plunger pump. The three-cylinder high-pressure plunger oil tank is sealed with the crankcase body, and the crankcase body is a three-cylinder high-pressure plunger oil tank and is driven by a motor. The pump body is internally provided with a plurality of water inlet valves, a plurality of water outlet valves, a pressure regulating valve, an easy starting valve and a gun closing stopping valve. The utility model discloses a water intaking valve, outlet valve, air-vent valve and the cooperation of spouting the pottery plunger realize the output and the pressure regulating process at high pressure water source, and the bulb of air-vent valve front end adopts the composite ceramic bulb, and the pressure regulating case is sealed with the inside O type sealing washer and the gasket cooperation of passing through of pressure regulating valve body, the effectual life who improves the air-vent valve. Meanwhile, the occurrence of the situation that the motor is burnt out by a stuffy machine is effectively reduced through the matching of the easy-to-start valve.

Description

High-efficient long-life three-cylinder high pressure plunger pump

Technical Field

The utility model relates to a high-pressure plunger pump technical field, concretely relates to high-efficient long-life triplex high-pressure plunger pump.

Background

The high-pressure plunger pump achieves the purpose of conveying liquid by means of the periodic change of the volume of fluid in the working cavity, and the mechanical energy of the prime motor is directly converted into the pressure energy of the conveyed liquid through the pump body. The existing high-pressure plunger pump is easy to damage a pressure regulating valve and short in service life because of misoperation and frequent operation of workers in actual use, and a motor is easy to burn out due to the fact that a driving motor is not reasonable in pressure relief in the starting process when the high-pressure plunger pump is started for use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a high-efficient, long-life three jar high-pressure plunger pumps.

The utility model provides a technical scheme that its technical problem adopted is:

a high-efficiency long-life three-cylinder high-pressure plunger pump comprises a pump body and a crankcase body, wherein the pump body is sealed with the crankcase body, a plurality of water inlet valves, a plurality of water outlet valves, a pressure regulating valve, an easy-to-start valve and a gun-closing shutdown valve are arranged in the pump body, the plurality of water inlet valves are communicated with water inlets through low-pressure cavities, the plurality of water outlet valves are communicated with water outlets through high-pressure cavities, a working cavity is arranged between a single water inlet valve and a single water outlet valve, the crankcase body comprises a ceramic spraying plunger, and the ceramic spraying plunger is inserted into the working cavity to reciprocate; the high-pressure cavity is communicated with the water outlet, a first pressure relief cavity is arranged at the communication position to form a three-fork opening, the first pressure relief cavity is communicated with the low-pressure cavity, the three-fork opening is provided with the pressure regulating valve, and the pressure regulating valve controls the flow rate of the first pressure relief cavity to control the water outlet pressure of the water outlet; the pressure regulating valve comprises a pressure regulating valve body, a pressure regulating valve core and a ball head, the front end of the pressure regulating valve core is fixedly connected with the ball head, the rear end of the pressure regulating valve core is elastically connected with the interior of the pressure regulating valve body through a spring, the pressure regulating valve core is sealed with the pressure regulating valve body through an O-shaped sealing ring and a buffer gasket, a second pressure relief cavity is further arranged in the pressure regulating valve core and the inner cavity of the lower end of the pressure regulating valve body, a circulation hole is formed in the pressure regulating valve core, and the second pressure relief cavity is communicated with the water outlet through the circulation hole; the easy-to-start valve comprises a steel ball, the upper end of the steel ball is communicated with the high-pressure cavity, and the lower end of the steel ball is provided with a spring and communicated with the first pressure relief cavity; the gun closing stop valve comprises a gun closing stop valve rod, the upper end of the gun closing stop valve rod is communicated with the second pressure relief cavity through the circulation hole, the lower end of the gun closing stop valve rod is communicated with the high-pressure cavity, and a micro switch is arranged at the lower end of the gun closing stop valve rod.

Preferably, the ball head is a composite ceramic ball head.

Further, the surface of the front end of the ceramic spraying plunger, which is contacted with a water source, is coated with ceramic.

Furthermore, a jet fluid is arranged at the water outlet, a one-way valve core and a one-way valve spring are arranged in the jet fluid, and the one-way valve core is elastically connected with the jet fluid.

Furthermore, the pump body is also provided with a pressure gauge for detecting the pressure in the high-pressure cavity.

The utility model has the advantages that:

1. the ball head at the lower end of the pressure regulating valve is matched with the valve seat through the water inlet valve, the water outlet valve and the pressure regulating valve, the pressure regulating process of the high-pressure plunger pump is realized, the ball head is a composite ceramic ball head, the ceramic surface is high in smoothness, high in wear resistance and high in hardness, and the service life of the pressure regulating valve is effectively prolonged.

2. The valve core and the valve body of the pressure regulating valve are sealed through the O-shaped sealing ring and the buffer gasket, the buffer gasket can effectively overcome the defects existing when the original O-shaped sealing ring is sealed independently, shock of the O-shaped sealing ring is reduced, and therefore the service life of the O-shaped sealing ring is prolonged.

3. The pressure regulating valve core and the pressure regulating valve body are internally provided with a second pressure relief cavity and are provided with through holes, and the water outlet is communicated with the pressure relief cavity through the through holes, so that the pressure relief process can be realized, and the service life is prolonged. Meanwhile, a gun closing stop valve is also arranged on the pump body, the upper end of the gun closing stop valve is also communicated with the second pressure relief cavity through another through hole, and the lower end of the gun closing stop valve is communicated with the high pressure cavity, so that the gun closing stop valve is controlled to move upwards and downwards through the opening and closing of the water outlet, the micro switch is controlled to be opened and closed through the upwards and downwards movement of the gun closing stop valve, the micro switch is connected with a control system, and the operation of the motor is controlled through the control system.

4. The pump body is further provided with an easy-start valve, a steel ball is arranged in the easy-start valve, the upper end of the steel ball is communicated with the high-pressure cavity, the lower end of the steel ball is provided with a spring and is communicated with the first pressure relief cavity, when the motor operates at full power, gas in the pump body flows out of the gap of the steel ball of the easy-start valve into the first pressure relief valve, the situation that the motor is blocked is avoided, when a high-pressure water source flows in, the steel ball blocks a lower end flow passage, and the easy-start valve is closed.

5. The surface of the front end of the ceramic spraying plunger, which is contacted with a water source, is subjected to ceramic spraying treatment, and the rear end of the ceramic spraying plunger, which is contacted with the reciprocating oil seal, keeps the original material, so that the occurrence of water seepage and oil seepage is effectively reduced, and the service life of the whole machine is further prolonged.

Drawings

FIG. 1 is a perspective view of the utility model;

figure 2 is a front view and a sectional direction diagram, marked 1 in figure 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an enlarged cross-sectional view taken generally at 103 in FIG. 4;

FIG. 6 is a schematic view in plan and cut-away orientation, marked 1 in FIG. 1;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

labeled as:

1. the hydraulic pump comprises a pump body, 2, a crankcase body, 201, a ceramic spraying plunger, 3, a pressure gauge, 4, a microswitch, 101, a water inlet valve, 1011, a water inlet, 102, a water outlet valve, 1021, a water outlet, 103, a pressure regulating valve, 104, an easy-to-start valve, 105, a gun closing shutdown valve, 106, a low pressure cavity, 107, a high pressure cavity, 108, a working cavity, 109, a first pressure relief cavity, 110, a second pressure relief cavity, 111, a jet fluid, 1031, a pressure regulating valve body, 1032, a pressure regulating valve core, 1033, a ball head, 1034, an O-shaped sealing ring, 1035, a buffer gasket, 1036, a valve seat, 1041, a steel ball, 1051, a gun closing shutdown valve seat, 1052, a gun closing shutdown valve rod, 1191, a one-way valve core, 1192 and a one-way valve spring.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

A high-efficiency long-life three-cylinder high-pressure plunger pump is shown in figures 1-4 and comprises a pump body 1 and a crankcase body 2, wherein the pump body 1 is sealed with the crankcase body 2, and the crankcase body 1 is a three-cylinder high-pressure plunger oil tank and is driven by a motor. A plurality of water inlet valves 101, a plurality of water outlet valves 102, a pressure regulating valve 103, an easy-to-start valve 104 and a gun closing stop valve 105 are arranged in the pump body 1, the plurality of water inlet valves 101 are communicated with a water inlet 1011 through a low-pressure cavity 106, the plurality of water outlet valves 102 are communicated with a water outlet 1021 through a high-pressure cavity 107, a working cavity 108 is arranged between a single water inlet valve and a single water outlet valve, the crankshaft box body 2 comprises a ceramic spraying plunger 201, and the ceramic spraying plunger 201 is inserted into the working cavity 108 to reciprocate.

In this embodiment, the inlet valve 101 and the outlet valve 102 are both one-way valves, the inlet valve 101 is disposed at the lower end of the outlet valve 102 and arranged vertically to each other, the inlet valve 101 is disposed horizontally, the outlet valve 102 is disposed vertically and corresponds to the three-cylinder high-pressure plunger oil tank, three groups of the inlet valve 101 and the outlet valve 102 are respectively disposed to form three working chambers 108, and the three ceramic spraying plungers 201 respectively reciprocate in the three working chambers 108. When the ceramic spraying plunger 201 moves backwards (towards the right side as shown in fig. 3), vacuum is formed in the working cavity 108, low-pressure water in the low-pressure cavity 106 is pumped into the working cavity 108 through the water inlet valve 101, when the ceramic spraying plunger moves forwards (towards the left side), the water inlet valve 101 is closed, the water in the working cavity 108 is squeezed to form high-pressure water, the water outlet valve 102 is pushed open, and the high-pressure water is output from the high-pressure cavity 107.

The high pressure chamber 107 is communicated with the water outlet 1021, a first pressure relief chamber 109 is arranged at the communication position to form a three-fork port, the first pressure relief chamber 109 is communicated with the low pressure chamber 106 to form a loop, a pressure regulating valve 103 is arranged at the three-fork port, and the pressure regulating valve 103 controls the flow rate of the first pressure relief chamber 109 to control the water outlet pressure of the water outlet 1021. When the pressure regulating valve 103 is opened, a part of the high-pressure water source in the high-pressure cavity 107 flows out from the water outlet 1021, and a part of the high-pressure water source returns to the low-pressure cavity 106 from the first pressure relief cavity 109, the larger the pressure regulating valve 103 is opened, the larger the flow in the first pressure relief cavity 109 is, and the smaller the flow and the pressure of the water outlet 1021 are, so that the purpose of pressure regulation is achieved.

As shown in fig. 4 and 5, the pressure regulating valve 103 includes a pressure regulating valve body 1031, a pressure regulating valve spool 1032 and a ball 1033, wherein the front end of the pressure regulating valve spool 1032 is fixedly connected to the ball 1033, and the rear end thereof is elastically connected to the inside of the pressure regulating valve body 1031 by a spring. The pressure regulating valve core 1032 is a stepped valve core with upper and lower concentric circles, the diameter of the upper end is larger than that of the lower end, a stepped through hole with the upper and lower concentric circles is formed in the pressure regulating valve body 1031, the upper end of the pressure regulating valve core 1032 is arranged in the through hole at the upper end of the pressure regulating valve body 1031, the lower end of the pressure regulating valve core 1032 penetrates through the through hole at the lower end of the pressure regulating valve body 1031 to be connected with a ball head 1033, a valve seat 1036 matched with the ball head is arranged at the upper end of the first pressure relief cavity 109, the ball head 1033 is used for opening and closing the first pressure relief cavity 109, the upper end and the lower end of the pressure regulating valve core 1032 are sealed with the pressure regulating valve body 1031 through an O-shaped sealing ring 1034 and a buffer gasket 1035, the vibration of the O-shaped sealing ring 1034 can be effectively reduced by the buffer gasket 1035, and the service life of the O-shaped sealing ring 1034 is prolonged. As shown in fig. 5, the through holes at the upper end of the pressure regulating valve core 1032 and the upper end of the pressure regulating valve body 1031 are also provided with solid grease for lubrication, so as to further improve the service life of the valve core 1033. The upper end of the pressure regulating valve core 1032 is separated from the through hole at the lower end of the pressure regulating valve body 1031 to form a second pressure relief cavity 110, a flow hole is formed in the second pressure relief cavity, and the second pressure relief cavity 110 is communicated with the water outlet through the flow hole. The easy-to-start valve 104 comprises a steel ball 1041, the upper end of the steel ball 1041 is communicated with the high-pressure cavity 105, and the lower end of the steel ball 1041 is provided with a spring and is communicated with the first pressure relief cavity 109.

As shown in fig. 6 and 7, the gun closing stopping valve 105 includes a gun closing stopping valve seat 1051 and a gun closing stopping valve rod 1052, the upper end of the gun closing stopping valve rod 1052 is communicated with the second pressure relief chamber 110 through a flow hole, the lower end is communicated with the high pressure chamber 107, and the lower end of the gun closing stopping valve rod 1052 is provided with a microswitch 4.

The utility model discloses in, bulb 1033 adopts the compound ceramic bulb, and its surface finish is higher, and the hardness is higher, and the wearability is better, solves the problem of original metal bulb in use easy gasification wearing and tearing, improves life. Spout pottery plunger 201 front end contact water source department surface and spout pottery, the reciprocal oil blanket department in rear end contact crankcase 2 keeps original metal material, front end contact water source department inserts and is reciprocating motion in working chamber 108, its surface finish is higher after the pottery is spouted to the surface, later stage sealing effect is better, rear end contact reciprocal oil blanket department keeps original metal material, the roughness in surface can reduce wear when reciprocating oil blanket in motion, can effectually solve the infiltration oil impregnate problem between the pump body 1 and the crankcase 2 like this.

As shown in fig. 4, the jet fluid 111 is disposed at the water outlet 1021, a check valve 1111 and a check valve spring 1112 are disposed in the jet fluid 111, and the check valve 1111 is elastically connected to the jet fluid 111.

As shown in fig. 1, the pump body 1 is further provided with a pressure gauge 3 for detecting the pressure in the internal high pressure chamber 107 thereof.

The working principle of the utility model is as follows:

1. and (3) pressure regulating process:

the ceramic spraying plunger 201 reciprocates in the working cavity 108, low-pressure water is pumped into the working cavity 108, the water in the working cavity 108 is extruded out to form high-pressure water, the high-pressure water is conveyed to a three-way opening formed by the jet fluid 111 and the first pressure relief cavity 109 through the high-pressure cavity 107, the high-pressure water extrudes the one-way valve core 1111 to be opened, and the high-pressure water is ejected from the jet fluid 111. The pressure regulating valve 103 controls the high-pressure water source to split by regulating the opening amplitude of the control ball 1033, one part of the high-pressure water source flows out of the original jet fluid 111, and the other part of the high-pressure water source flows back into the low-pressure cavity 106 from the first pressure relief cavity 109, and the larger the opening amplitude of the ball 1033 is, the more the water flow flows into the first pressure relief cavity 109 is, the smaller the water flow pressure of the outflow jet fluid 111 is, and the pressure regulating process is realized.

2. And (3) pressure relief process:

the water outlet 1021 later stage is through water piping connection spray gun, when the spray gun was closed, because the motor has inertia, spouts the pottery plunger and still does reciprocating motion and change high pressure water source, and the pressure in the water outlet pipeline will become very big, and in order to reduce the pressure in the water outlet pipeline, water outlet 1021 and second pressure release chamber 110 communicate, and the high pressure water source of water outlet 1021 department flows into second pressure release chamber 110, jacks up case 1032 to open bulb 1033 and realize the pressure release process.

3. The easy starting process is as follows:

after the high-pressure plunger pump is used, because the pump body is in a sealed state, a water source is generally reserved in the pump body, the water source also exists in the jet fluid 111, the one-way valve element 1111 is closed, when the motor is started, the motor is operated at full power at first, air is firstly extracted, when the air flows out of the high-pressure cavity 107, the air cannot be discharged because the one-way valve element 1111 is closed, and if the ball 1033 and the valve seat 1036 of the pressure regulating valve 103 are also sealed, the motor is easily burnt out. In order to solve the problem, an easy-start valve 104 is designed beside the pressure regulating valve 103, and spring-supported air at the lower end of a steel ball 1041 in the easy-start valve flows out of a high-pressure cavity 107 to a first pressure relief cavity 109 along with the gap of the steel ball, so that the situation that the motor is blocked is effectively avoided. When the low-pressure water source is transferred to the high-pressure water source, the high-pressure water source impacts the steel ball 1041 to press down, and the steel ball 1041 seals the flow passage at the lower end of the steel ball 1041, so that normal high-pressure water source output is performed.

4. The high-pressure water source output control process:

through the contact of the gun closing stop valve 105 and the micro switch, a signal is generated when the micro switch is turned on and off, and the control system detects the signal and controls the operation of the motor so as to control the output process of the high-pressure water source. The upper and lower isolation of the valve rod 1052 in the gun-closing shutdown valve 105 is realized through a sealing ring, the upper end is communicated with the second pressure relief cavity 110, the lower end is communicated with the high-pressure water source output end, and the lower end of the valve rod 1052 penetrates through a gun-closing shutdown valve seat 1051 to be connected with a microswitch. When the spray gun is opened, a high-pressure water source is sprayed out from the jet fluid 111, the water pressure at the output end of the high-pressure water source is increased, the high-pressure water source flows into the lower end of the valve rod 1052 to jack the valve rod 1052, the valve rod 1052 moves upwards, the micro switch 4 is closed, the micro switch 4 sends a closing signal to the control system, and the control system controls the motor to work; when the spray gun is closed, the one-way valve core 1111 is closed, the pressure of a water source at the water outlet 1021 is increased, the water source flows into the second pressure relief cavity 110 from the water outlet 1021, a high-pressure water source in the second pressure relief cavity 110 flows into the valve rod 1052 to press down the valve rod 1052, the valve rod 1052 moves downwards, the valve rod 1052 opens the micro switch 4, the micro switch 4 sends an opening signal to a control system, and the control system controls the motor to stop running.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (5)

1. The utility model provides a high-efficient long-life triplex high pressure plunger pump, includes the pump body (1) and crankcase body (2), the pump body (1) with crankcase body (2) are sealed, its characterized in that: the ceramic spraying device is characterized in that a plurality of water inlet valves (101), a plurality of water outlet valves (102), a pressure regulating valve (103), an easy-to-start valve (104) and a gun closing shutdown valve (105) are arranged in the pump body (1), the plurality of water inlet valves (101) are communicated with a water inlet (1011) through low-pressure cavities (106), the plurality of water outlet valves (102) are communicated with a water outlet (1021) through high-pressure cavities (107), a working cavity (108) is arranged between a single water inlet valve and a single water outlet valve, the crankcase body (2) comprises a ceramic spraying plunger (201), and the ceramic spraying plunger (201) is inserted into the working cavity (108) to do reciprocating motion; the high-pressure cavity (107) is communicated with the water outlet (1021), a first pressure relief cavity (109) is arranged at the communication position to form a three-fork port, the first pressure relief cavity (109) is communicated with the low-pressure cavity (106), the three-fork port is provided with the pressure regulating valve (103), and the pressure regulating valve (103) controls the flow rate of the first pressure relief cavity (109) to control the water outlet pressure of the water outlet (1021); the pressure regulating valve (103) comprises a pressure regulating valve body (1031), a pressure regulating valve core (1032) and a ball head (1033), the front end of the pressure regulating valve core (1032) is fixedly connected with the ball head (1033), the rear end of the pressure regulating valve core is elastically connected with the interior of the pressure regulating valve body (1031) through a spring, the pressure regulating valve core (1032) is sealed with the pressure regulating valve body (1031) through an O-shaped sealing ring (1034) and a buffer gasket (1035), a second pressure relief cavity (110) is further arranged in the inner cavities of the lower ends of the pressure regulating valve core (1032) and the pressure regulating valve body (1031) and is provided with a flow hole, and the second pressure relief cavity (110) is communicated with the water outlet through the flow hole; the easy-to-start valve (104) comprises a steel ball (1041), the upper end of the steel ball (1041) is communicated with the high-pressure cavity (107), and the lower end of the steel ball (1041) is provided with a spring and is communicated with the first pressure relief cavity (109); the gun closing shutdown valve (105) comprises a gun closing shutdown valve rod (1052), the upper end of the gun closing shutdown valve rod (1052) is communicated with the second pressure relief cavity (110) through the circulation hole, the lower end of the gun closing shutdown valve rod is communicated with the high pressure cavity (107), and a microswitch (4) is arranged at the lower end of the gun closing shutdown valve rod (1052).

2. A high efficiency long life three cylinder high pressure plunger pump as claimed in claim 1 wherein: the ball head (1033) is a composite ceramic ball head.

3. A high efficiency long life three cylinder high pressure plunger pump as claimed in claim 1 wherein: pottery is sprayed on the surface of the front end of the pottery spraying plunger (201) contacting with a water source.

4. A high efficiency long life three cylinder high pressure plunger pump as claimed in claim 1 wherein: the jet fluid jet device is characterized in that a jet fluid (111) is arranged at the water outlet (1021), a one-way valve core (1111) and a one-way valve spring (1112) are arranged in the jet fluid (111), and the one-way valve core (1111) is elastically connected with the jet fluid (111).

5. A high efficiency long life three cylinder high pressure plunger pump as claimed in any one of claims 1 to 4 wherein: the pump body (1) is further provided with a pressure gauge (3) for detecting the pressure in the high-pressure cavity (107) inside the pump body.

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