CN210423206U - Electromagnetic controlled two-position two-way electro-hydraulic valve - Google Patents
Electromagnetic controlled two-position two-way electro-hydraulic valve Download PDFInfo
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- CN210423206U CN210423206U CN201921479060.0U CN201921479060U CN210423206U CN 210423206 U CN210423206 U CN 210423206U CN 201921479060 U CN201921479060 U CN 201921479060U CN 210423206 U CN210423206 U CN 210423206U
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Abstract
The utility model provides a novel electromagnetic control two-position two-way electro-hydraulic valve, which comprises a main valve, a pilot valve and a control valve; a control valve seat of the control valve is provided with a small damping hole; the pilot valve is arranged at the upper end of the main valve, and the control valve is arranged at the upper end of the pilot valve; the main valve is provided with three oil ports, namely a first oil port, a second oil port and a third oil port; the lower end oil way of a pilot valve core in the pilot valve is communicated with a main oil way and a control oil way in a main valve, and the upper end oil way is communicated with a main oil port in a control valve seat in the control valve; the upper end of an oil leakage path of the pilot valve is communicated with a side oil port of the control valve, and the lower end of the oil leakage path of the pilot valve is communicated with the first oil port. The utility model discloses by solenoid electric valve and pilot valve control, the main valve can lead to large-traffic, and because the damping hole control flow on the control valve, has the cushioning effect to the lift of main valve core for main valve core switching-over is steady.
Description
Technical Field
The utility model relates to an electrohydraulic valve field specifically, relates to a novel two-position two-way electrohydraulic valve of electromagnetic control.
Background
In the fields of engineering machinery, construction machinery, hoisting and transportation machinery and the like, the electro-hydraulic reversing valve is stable in reversing and long in reversing time, and mainly comprises an electromagnetic reversing valve and a hydraulic reversing valve, wherein the electromagnetic reversing valve plays a role in pilot operation, and the hydraulic reversing valve plays a role in a main valve. Generally used in hydraulic systems with high flow rates.
The electromagnetic control two-position two-way electro-hydraulic valve is mainly used in a hydraulic system with the flow rate exceeding the normal working allowable range of the electromagnetic directional valve, and is used for controlling the action of an actuating element or controlling the flow direction of oil.
The existing two-position two-way electro-hydraulic valve with common flow has the disadvantages of high reversing speed, large impact and unstable reversing when flowing through a large flow. The novel two-position two-way electro-hydraulic valve changes the on-off of the control oil through the control of the electromagnetic valve and then is combined with the action control of the pilot valve to realize the large-flow stable passage of the system.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a novel solenoid electric's two-position two-way electrohydraulic valve, the utility model discloses by solenoid electric valve and pilot valve control, the main valve can lead to large-traffic, and because the damping hole controlled flow on the control valve, has the cushioning effect to the lift of main valve core for main valve core switching-over is steady.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a novel electromagnetic control two-position two-way electro-hydraulic valve comprises a main valve, a pilot valve and a control valve, wherein the pilot valve is arranged at the upper end of a main valve body, and the control valve is arranged at the upper end of the pilot valve body; the main valve comprises a main valve body, a main valve sleeve, a main valve core spring, a damping screw and a main valve core spring cavity, the pilot valve comprises a pilot valve body and a pilot valve component, the pilot valve component comprises a pilot valve sleeve, a pilot valve core, a pilot valve spring and a pilot valve spring seat, the control valve comprises a control cover, a control valve seat, a top cover, a control valve core, a push rod, a flux sleeve, a nut, a coil, a small control valve spring, a control valve spring seat and a large control valve spring, and a small damping hole is formed in the control valve seat; the main valve body of the main valve is provided with three oil ports, namely a first oil port, a second oil port and a third oil port; the lower end oil way of a pilot valve core in the pilot valve is communicated with a main oil way and a control oil way in a main valve, and the upper end oil way is communicated with a main oil port in a control valve seat in the control valve; the upper end of an oil leakage path of the pilot valve is communicated with a side oil port of the control valve, and the lower end of the oil leakage path of the pilot valve is communicated with the first oil port.
The utility model discloses a further improvement lies in: the main valve sleeve is in clearance fit with the main valve body, the main valve core is arranged in a groove of the main valve sleeve and is in sliding fit with the main valve sleeve, and a main valve core spring cavity for containing a main valve core spring is formed between the main valve core and the pilot valve body; and damping screws are respectively arranged at the contact positions of the main oil path, the control oil path and the main valve core spring cavity in the main valve and the pilot valve body, and damping holes for controlling the flow of the oil port are arranged on the damping screws. The damping hole is used for controlling the flow of an oil inlet of the pilot valve core and has a buffering effect on the closing and the opening of the main valve core.
The utility model discloses a further improvement lies in: the two groups of pilot valve assemblies are respectively arranged at the joints of the pilot valve body and the main oil way and the control oil way of the main valve, and both the two groups of pilot valve assemblies are fixed by check rings; the pilot valve sleeve is in clearance fit with the pilot valve body, a pilot valve core and a pilot valve spring seat are arranged in a cavity of the pilot valve sleeve, and a pilot valve core spring cavity for containing a pilot valve spring is formed between the pilot valve core and the pilot valve spring seat; the lower ends of the cavity of the pilot valve sleeves on the left side and the right side are respectively communicated with a main oil way and a control oil way in a main valve.
The utility model discloses a further improvement lies in: the control valve is characterized in that the control cover is abutted against the pilot valve body, the control valve seat is arranged in a cavity of the control cover, one end of the control valve seat is inserted in the upper end of the pilot valve body, the other end of the control valve seat is provided with a magnetic sleeve, a top cover, a control valve core and a push rod are arranged in the cavity of the magnetic sleeve, the control valve spring seat is arranged in a spring cavity formed between the top cover and the control valve core, a small control valve spring and a large control valve spring are respectively arranged on the inner side and the outer side of the control valve spring seat, two ends of the small control valve spring and the large control valve spring are respectively connected with the top cover and the control valve core, the other end of the control valve core is connected with the push rod, a.
The utility model discloses a further improvement lies in: the main oil way and the control oil way in the main valve respectively enter the pilot valve through damping screws, the control oil way in the main valve enters the control valve through the pilot valve, and the electromagnet controls the on-off of the oil way between the pilot valve and the control valve; and a main oil port in the middle of the control valve seat is communicated with a pilot valve oil way and a main valve core spring cavity, and a side oil port of the control valve seat is communicated with a first oil port through a pilot valve.
The utility model discloses a further improvement lies in: the first oil port, the second oil port and the third oil port are fixedly arranged on a guard plate on the bottom surface of the main valve body through screws and are plate valves, the bottom surfaces of the oil ports are sealed by O-shaped rings, the first oil port is connected with external oil drainage, and the second oil port and the third oil port can be connected with an oil inlet or an oil outlet at will.
The utility model discloses a further improvement lies in: the pilot valve is arranged at the upper end of the main valve body, the pilot valve body is fixedly connected with the main valve body through a screw, and the middle of the pilot valve body is sealed through an O-shaped ring; the control valve sets up the upper end at the pilot valve body, the control valve seat passes through the screw to be connected with the pilot valve body fixedly, and the centre is sealed through O type circle, the control lid passes through hexagon socket head cap screw and is connected fixedly with the pilot valve body, and is equipped with the fastening of elastic washer between control lid and the pilot valve body.
The utility model discloses a further improvement lies in: the main oil way process hole in the main valve is sealed by adopting an inner hexagonal plug screw and an O-shaped ring, and the control oil way process hole in the main valve and the oil way process hole in the pilot valve are both sealed by adopting a ball expansion type plug.
The utility model discloses a further improvement lies in: the upper end face and the lower end face between the main valve sleeve and the main valve body, between the pilot valve sleeve and the pilot valve body, between the pilot valve sleeve and the main valve body, between the control valve seat and the pilot valve body, between the control cover and the control valve seat, between the control cover and the magnetic sleeve, and between the magnetic sleeve and the control valve body are all provided with O-shaped ring seals; a check ring is arranged between the control cover and the magnetic sleeve; a Glare ring is arranged between the main valve sleeve and the main valve core; and an elastic check ring is arranged between the top cover and the magnetic sleeve.
The utility model discloses a further improvement lies in: the main valve body and the guard plate are fixed through an elastic cylindrical pin.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a novel electromagnetic control two-position two-way electro-hydraulic valve, an electromagnetic control valve and a pilot valve control, a main valve can be communicated with a large flow, and the flow is controlled by a damping hole on the control valve, so that the main valve core is smoothly reversed, namely, the control of the action buffer of the main valve core is realized by perfecting an electromagnetic control part;
(2) the utility model relates to a novel electromagnetic control two-position two-way electro-hydraulic valve which has simple structure, ingenious design and obvious effect;
(3) the novel electromagnetic control two-position two-way electro-hydraulic valve related by the utility model is provided with the Glare ring on the main valve core, which can reduce the damping, prolong the service life and achieve zero leakage;
(4) the utility model relates to a novel electromagnetic control two-position two-way electro-hydraulic valve, the damping small hole on the control valve seat plays a damping role, the flow of the pilot valve flowing into the control valve can be reduced, and the lifting speed of the pilot valve core is buffered;
(5) the utility model relates to a novel electromagnetic control two-position two-way electro-hydraulic valve, a damping hole for controlling the flow of an oil inlet of a pilot valve core is arranged on a damping screw, and the damping screw has a buffer effect on the closing and opening of a main valve core;
(6) the utility model relates to a novel two-position two-way electro-hydraulic valve of electromagnetic control, easily processing and assembly, it is with low costs, the practicality is strong, is fit for promoting on a large scale.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of an electromagnetic control two-position two-way electrohydraulic valve of the present invention;
FIG. 2 is a schematic structural diagram of the control valve of the present invention;
FIG. 3 is a schematic structural side view of the solenoid-operated two-position two-way electrohydraulic valve of the present invention;
FIG. 4 is a schematic top view of the structure of the solenoid-operated two-position two-way electro-hydraulic valve of the present invention;
FIG. 5 is a schematic diagram showing the flow direction of the oil in the solenoid-operated two-position two-way electro-hydraulic valve of the present invention;
in FIGS. 1-5: 1-a main valve, 2-a pilot valve, 3-a control valve, 4-a first oil port, 5-a second oil port, 6-a third oil port and 7-a guard plate;
11-main valve body, 12-main valve sleeve, 13-main valve core, 14-main valve core spring, 15-damping screw and 16-main valve core spring cavity;
21-a pilot valve body, 22-a pilot valve sleeve, 23-a pilot valve core, 24-a pilot valve spring and 25-a pilot valve spring seat;
31-a control cover, 32-a control valve seat, 33-a top cover, 34-a control valve core, 35-a push rod, 36-a magnetic sleeve, 37-a nut, 38-a coil, 39-a small control valve spring, 310-a control valve spring seat and 311-a large control valve spring;
41-inner hexagonal plug, 42-O-shaped ring, 43-ball expansion type plug, 44-retaining ring, 45-Glare ring, 46-inner hexagonal screw, 47-elastic cylindrical pin, 48-elastic retaining ring and 49-elastic washer.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
The embodiment provides a novel electromagnetic control two-position two-way electro-hydraulic valve, the structure of which is detailed in attached figures 1-4, and the flow direction of oil is detailed in attached figure 5.
The novel electromagnetic control two-position two-way electro-hydraulic valve comprises a main valve 1, a pilot valve 2 and a control valve 3; the main valve 1 comprises a main valve body 11, a main valve sleeve 12, a main valve core 13, a main valve core spring 14, a damping screw 15 and a main valve core spring cavity 16, the pilot valve 2 comprises a pilot valve body 21 and a pilot valve component, the pilot valve component comprises a pilot valve sleeve 22, a pilot valve core 23, a pilot valve spring 24 and a pilot valve spring seat 25, the control valve 3 comprises a control cover 31, a control valve seat 32, a top cover 33, a control valve core 34, a push rod 35, a magnetic conduction sleeve 36, a nut 37, a coil 38, a small control valve spring 39, a control valve spring seat 310 and a large control valve spring 311, and a small damping hole is formed in the control valve seat 32; the pilot valve 2 is arranged at the upper end of the main valve body 11, and the control valve 3 is arranged at the upper end of the pilot valve body 21;
the main valve body 11 of the main valve 1 is provided with three oil ports, namely a first oil port 4, a second oil port 5 and a third oil port 6; the lower end oil way of the pilot valve core 23 in the pilot valve 2 is communicated with the main oil way and the control oil way in the main valve 1, and the upper end oil way is communicated with the main oil port in the control valve seat 32 in the control valve 3; the upper end of an oil leakage path of the pilot valve 2 is communicated with a side oil port of the control valve 3, and the lower end of the oil leakage path is communicated with a first oil port 4.
Further, the main valve sleeve 12 is in clearance fit with the main valve body 11, the main valve element 13 is arranged in a groove of the main valve sleeve 12 and is in sliding fit with the main valve sleeve 12, and a main valve element spring cavity 16 containing a main valve element spring 14 is formed between the main valve element 13 and the pilot valve body 21; the main oil path, the control oil path, the main valve core spring cavity 16 and the pilot valve body 21 in the main valve 1 are respectively provided with a damping screw 15, and the damping screw 15 is provided with a damping hole for controlling the flow of the oil port. The damping hole is used for controlling the flow of an oil inlet of the pilot valve core and has a buffering effect on the closing and the opening of the main valve core.
Further, the two groups of pilot valve assemblies are arranged at the joints of the pilot valve body 21 and the main oil path and the control oil path of the main valve 1 respectively and are fixed by a retaining ring 44, the pilot valve sleeve 22 is in clearance fit with the pilot valve body 21, a pilot valve core 23 and a pilot valve spring seat 25 are arranged in a cavity of the pilot valve sleeve 22, and a pilot valve core spring cavity for accommodating the pilot valve spring 24 is formed between the pilot valve core 23 and the pilot valve spring seat 25; the lower ends of the cavity of the pilot valve sleeves 22 on the left side and the right side are respectively communicated with the main oil way and the control oil way in the main valve 1.
Further, the control cover 31 abuts against the pilot valve body 21, the control valve seat 32 is disposed in a cavity of the control cover 31, one end of the control valve seat 32 is inserted into the upper end of the pilot valve body 21, the other end of the control valve seat is disposed with a flux sleeve 36, a top cover 33, a control valve core 34 and a push rod 35 are disposed in the cavity of the flux sleeve 36, the control valve spring seat 310 is disposed in a spring cavity formed between the top cover 33 and the control valve core 34, a control valve small spring 39 and a control valve large spring 311 are disposed on the inner side and the outer side of the control valve spring seat 310 respectively, two ends of the control valve small spring 39 and the control valve large spring 311 are connected with the top cover 33 and the control valve core 34 respectively, the other end of the control valve core 34 is connected with the push rod 35, a coil 38 is sleeved on the outer wall of the flux sleeve 36, and a.
Furthermore, a main oil path and a control oil path in the main valve 1 respectively enter the pilot valve 2 through a damping screw 15, the control oil path in the main valve 1 enters the control valve 3 through the pilot valve 2, and the electromagnet controls the on-off of the oil path between the pilot valve 2 and the control valve 3; the main oil port in the middle of the control valve seat 32 is communicated with the oil path of the pilot valve 2 and the main valve core spring cavity 16, and the side oil port of the control valve seat 32 is communicated with the first oil port 4 through the pilot valve 2.
Further, the first oil port 4, the second oil port 5 and the third oil port 6 are all fixedly arranged on a guard plate 7 on the bottom surface of the main valve body 11 through screws and are plate valves, the bottom surfaces of the oil ports are all sealed by O-shaped rings 42, the first oil port 4 is connected with external oil drainage, and the second oil port 5 and the third oil port 6 can be connected with an oil inlet or an oil outlet at will.
Further, the pilot valve 2 is arranged at the upper end of the main valve body 11, the pilot valve body 21 is fixedly connected with the main valve body 11 through a screw, and the middle of the pilot valve body is sealed through an O-shaped ring; the control valve 3 is arranged at the upper end of the pilot valve body 21, the control valve seat 32 is fixedly connected with the pilot valve body 21 through screws, the middle of the control valve seat is sealed through an O-shaped ring, the control cover 31 is fixedly connected with the pilot valve body 21 through an inner hexagon screw 46, and an elastic gasket 49 is arranged between the control cover 31 and the pilot valve body 21 for fastening.
Further, the main oil path process hole in the main valve 1 is sealed by an inner hexagonal plug 41 and an O-ring 42, and the control oil path process hole in the main valve 1 and the oil path process hole in the pilot valve 2 are both sealed by a ball expansion type plug 43.
Furthermore, O-rings 42 are arranged between the main valve sleeve 12 and the main valve body 11, between the pilot valve sleeve 22 and the pilot valve body 21, between the pilot valve sleeve 22 and the main valve body 11, between the control valve seat 32 and the pilot valve body 21, between the control cover 31 and the control valve seat 32, between the flux sleeve 36, and between the flux sleeve 36 and the control valve body for sealing; a check ring 44 is arranged between the control cover 31 and the magnetic sleeve 36; a Glare ring 45 is arranged between the main valve sleeve 12 and the main valve core 13 for sealing; and an elastic retainer ring 48 is arranged between the top cover 33 and the magnetic sleeve 36.
Further, the main valve body 11 and the guard plate 7 are fixed by an elastic cylindrical pin 47.
The utility model discloses a theory of operation does:
when the coil is powered off, the control valve core rises to the uppermost end under the action of the small control valve spring and the large control valve spring, the small damping hole in the control valve seat is communicated with the side oil port, the side oil port is connected with the first oil port, and the control valve is in an open state. The small damping holes on the control valve seat play a damping role, so that the flow of the pilot valve flowing into the control valve can be reduced, and the lifting speed of the pilot valve core is buffered.
When the coil is electrified, the armature in the magnetic conduction sleeve pushes the push rod, the push rod pushes the control valve core to move downwards, the damping small hole in the control valve seat is closed, the control oil way is closed, and the control oil is in a pressure maintaining state.
And (3) controlling the valve coil to be powered off: when oil passes through the first oil port, the main valve core moves upwards under the action of hydraulic pressure, the main oil path is opened, the oil flows from the second oil port to the third oil port and flows out, meanwhile, part of the oil enters the pilot valve through the damping screw, the pilot valve core is opened, the oil enters the main valve core spring cavity and enters the first oil port through the damping hole of the control valve seat to leak, and the main valve core is buffered due to the action of the damping hole on the control valve seat, so that the main valve core is opened stably. Similarly, when oil passes through the third oil port, hydraulic pressure force opens the main valve core, the oil flows to the second oil port from the third oil port and flows out again, meanwhile, a part of oil enters the pilot valve through the damping screw, the pilot valve core is opened, the oil enters the main valve core spring cavity and enters the first oil port through the damping hole of the control valve seat to leak, and the main valve core is buffered due to the effect of the damping hole on the control valve seat, so that the main valve core is opened stably. And the main valve core is provided with the Glare ring, so that the damping can be reduced, the service life can be prolonged, and zero leakage can be achieved.
Controlling the valve coil to be electrified: the armature iron in the magnetic conduction sleeve pushes the push rod, the push rod pushes the control valve core to act, the damping small hole in the control valve seat is closed, and the control oil way is closed. When oil flows in through the second oil port, the oil enters the right pilot valve through the right damping screw, the right pilot valve core is opened, the oil enters the main valve core spring cavity, hydraulic force acts on the main valve core spring cavity, and the stress area of the main valve core spring cavity is larger than that of the bottom end of the main valve core, so that the main valve core is closed, and the main oil way is closed. Similarly, when oil flows in through the third oil port, the oil enters the left pilot valve through the left damping screw, the left pilot valve core is opened, the oil enters the main valve core spring cavity, the hydraulic force acts on the main valve core spring cavity, and the stress area of the main valve core spring cavity is larger than that of the conical surface annular surface at the bottom end of the main valve core, so that the main valve core is closed, and the main oil way is closed.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A novel electromagnetic control two-position two-way electro-hydraulic valve is characterized by comprising a main valve (1), a pilot valve (2) and a control valve (3); the main valve (1) comprises a main valve body (11), a main valve sleeve (12), a main valve core (13), a main valve core spring (14), a damping screw (15) and a main valve core spring cavity (16); the pilot valve (2) comprises a pilot valve body (21) and a pilot valve assembly; the pilot valve component comprises a pilot valve sleeve (22), a pilot valve core (23), a pilot valve spring (24) and a pilot valve spring seat (25); the control valve (3) comprises a control cover (31), a control valve seat (32), a top cover (33), a control valve core (34), a push rod (35), a magnetic conduction sleeve (36), a screw cap (37), a coil (38), a control valve small spring (39), a control valve spring seat (310) and a control valve large spring (311), and a small damping hole is formed in the control valve seat (32); three oil ports, namely a first oil port (4), a second oil port (5) and a third oil port (6), are arranged on a main valve body (11) of the main valve (1); the lower end oil way of a pilot valve core (23) in the pilot valve (2) is communicated with the main oil way and the control oil way in the main valve (1), and the upper end oil way is communicated with a main oil port in a control valve seat (32) in the control valve (3); the upper end of an oil leakage way of the pilot valve (2) is communicated with a side oil port of the control valve (3), and the lower end of the oil leakage way is communicated with a first oil port (4); the pilot valve (2) is arranged at the upper end of the main valve body (11), and the control valve (3) is arranged at the upper end of the pilot valve body (21).
2. A novel electromagnetic control two-position two-way electro-hydraulic valve as claimed in claim 1, characterized in that said main valve housing (12) is clearance fitted with the main valve body (11), the main valve spool (13) is disposed in a groove of the main valve housing (12) and is slidably fitted with the main valve housing (12); a main valve core spring cavity (16) for containing a main valve core spring (14) is formed between the main valve core (13) and the pilot valve body (21); damping screws (15) are respectively arranged at the contact positions of a main oil path, a control oil path, a main valve core spring cavity (16) and a pilot valve body (21) in the main valve (1), and damping holes for controlling the flow of an oil port are arranged on the damping screws (15).
3. The novel electromagnetic control two-position two-way electro-hydraulic valve as claimed in claim 1, wherein the pilot valve assemblies are provided in two groups, which are respectively arranged at the joints of the pilot valve body (21) and the main oil path and the control oil path of the main valve (1), and both the two groups of pilot valve assemblies are fixed by a retainer ring (44); the pilot valve sleeve (22) is in clearance fit with the pilot valve body (21), a pilot valve core (23) and a pilot valve spring seat (25) are arranged in a cavity of the pilot valve sleeve (22), and a pilot valve core spring cavity for containing a pilot valve spring (24) is formed between the pilot valve core (23) and the pilot valve spring seat (25); the lower ends of the cavity bodies of the pilot valve sleeves (22) on the left side and the right side are respectively communicated with a main oil way and a control oil way in the main valve (1).
4. The novel electromagnetic control two-position two-way electro-hydraulic valve according to claim 1, wherein the control cover (31) abuts against the pilot valve body (21), the control valve seat (32) is disposed in a cavity of the control cover (31), one end of the control valve seat (32) is inserted into the upper end of the pilot valve body (21), the other end is disposed with a magnetic sleeve (36), a top cover (33), a control valve core (34) and a push rod (35) are disposed in the cavity of the magnetic sleeve (36), the control valve spring seat (310) is disposed in a spring cavity formed between the top cover (33) and the control valve core (34), a small control valve spring (39) and a large control valve spring (311) are disposed on the inner side and the outer side of the control valve spring seat (310), and two ends of the small control valve spring (39) and the large control valve spring (311) are connected with the top cover (33) and the control valve core (34) respectively, the other end of the control valve core (34) is connected with a push rod (35), a coil (38) is sleeved on the outer wall of the magnetic sleeve (36), and a nut (37) is sleeved on the other end of the magnetic sleeve (36).
5. The novel electromagnetic control two-position two-way electro-hydraulic valve as claimed in claim 1, wherein the main oil path and the control oil path in the main valve (1) enter the pilot valve (2) through the damping screw (15), the control oil path in the main valve (1) enters the control valve (3) through the pilot valve (2), and the electromagnet controls the on-off of the oil path between the pilot valve (2) and the control valve (3); the main oil port in the middle of the control valve seat (32) is communicated with the pilot valve (2) oil way and the main valve core spring cavity (16), and the side oil port of the control valve seat (32) is communicated with the first oil port (4) through the pilot valve (2).
6. The novel electromagnetic control two-position two-way electro-hydraulic valve according to claim 1, characterized in that the first oil port (4), the second oil port (5) and the third oil port (6) are all fixedly arranged on a guard plate (7) on the bottom surface of the main valve body (11) through screws and are plate valves, the bottom surfaces of the oil ports are all sealed by O-shaped rings (42), the first oil port (4) is connected with external oil drainage, and the second oil port (5) and the third oil port (6) can be connected with an oil inlet or an oil outlet at will.
7. The novel electromagnetic control two-position two-way electro-hydraulic valve is characterized in that the pilot valve (2) is arranged at the upper end of the main valve body (11), the pilot valve body (21) is fixedly connected with the main valve body (11) through a screw, and the middle of the pilot valve body is sealed through an O-shaped ring; the control valve (3) is arranged at the upper end of the pilot valve body (21), the control valve seat (32) is fixedly connected with the pilot valve body (21) through screws, the middle of the control valve seat is sealed through an O-shaped ring, the control cover (31) is fixedly connected with the pilot valve body (21) through an inner hexagonal screw (46), and an elastic washer (49) is arranged between the control cover (31) and the pilot valve body (21) for fastening.
8. The new electromagnetic control two-position two-way electro-hydraulic valve according to claim 1, characterized in that the main oil passage process hole in the main valve (1) is sealed by an inner hexagonal plug (41) and an O-ring (42), and the control oil passage process hole in the main valve (1) and the oil passage process hole in the pilot valve (2) are sealed by a ball expansion type plug (43).
9. The novel electromagnetic control two-position two-way electro-hydraulic valve as claimed in claim 1, wherein the upper and lower end surfaces between the main valve sleeve (12) and the main valve body (11), the pilot valve sleeve (22) and the pilot valve body (21), the pilot valve sleeve (22) and the main valve body (11), the control valve seat (32) and the pilot valve body (21), the control cover (31), the control valve seat (32) and the flux sleeve (36), and the O-ring (42) for sealing are arranged between the flux sleeve (36) and the control valve body; a check ring (44) is arranged between the control cover (31) and the magnetic sleeve (36); a Glare ring (45) for sealing is arranged between the main valve sleeve (12) and the main valve core (13); and an elastic retainer ring (48) is arranged between the top cover (33) and the magnetic sleeve (36).
10. A new type of electromagnetic control two position two way electro-hydraulic valve as claimed in claim 1, characterized by the fact that the main valve body (11) is fixed to the guard (7) by means of a resilient cylindrical pin (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479060.0U CN210423206U (en) | 2019-09-06 | 2019-09-06 | Electromagnetic controlled two-position two-way electro-hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479060.0U CN210423206U (en) | 2019-09-06 | 2019-09-06 | Electromagnetic controlled two-position two-way electro-hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423206U true CN210423206U (en) | 2020-04-28 |
Family
ID=70366264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921479060.0U Active CN210423206U (en) | 2019-09-06 | 2019-09-06 | Electromagnetic controlled two-position two-way electro-hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423206U (en) |
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2019
- 2019-09-06 CN CN201921479060.0U patent/CN210423206U/en active Active
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