CN204756022U - Pneumatic hydraulic tribit five -way switching -over valve - Google Patents

Pneumatic hydraulic tribit five -way switching -over valve Download PDF

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Publication number
CN204756022U
CN204756022U CN201520485924.5U CN201520485924U CN204756022U CN 204756022 U CN204756022 U CN 204756022U CN 201520485924 U CN201520485924 U CN 201520485924U CN 204756022 U CN204756022 U CN 204756022U
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CN
China
Prior art keywords
pneumatic piston
stem
chamber
pneumatic
valve
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Withdrawn - After Issue
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CN201520485924.5U
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Chinese (zh)
Inventor
暴术龙
邢玉
许志营
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ACTUANT (CHINA) INDUSTRIAL Co Ltd
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ACTUANT (CHINA) INDUSTRIAL Co Ltd
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Publication of CN204756022U publication Critical patent/CN204756022U/en
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Abstract

The utility model discloses a pneumatic hydraulic tribit five -way switching -over valve, including valve body, air piston, air piston end cap, ball seat, stem stem, steel ball and central spring, suppress through aerodynamic mode is one -sided to realize the function of hydraulic pressure switching -over, the valve body need not adopt the electro -magnet, and the effectual manufacturing cost who reduces the switching -over valve has also improved life simultaneously.

Description

Pneumatic hydraulic 3 position-5 way valve
Technical field
The utility model relates to hydrovalve, specifically provides a kind of pneumatic hydraulic 3 position-5 way valve controlled by pressurized gas gas.
Background technique
Hydraulicdirectional control valve is widely used in hydraulic system, and traditional hydraulicdirectional control valve mainly contains Manual hydraulic change-over valve and electromagnetic hydraulic pressure selector valve.
Manual needle valve needs manual operation, and manual hydraulicdirectional control valve can not meet the demand of automatic liquid pressing system; It is the most general mode that electromagnetic hydraulic pressure selector valve is used as hydraulic system commutation, the function of commutation is realized by the break-make of the different oil circuit of electromagnetic valve, solenoid directional control valve needs magnetic force large, needing, the occasion heating value of frequent movement is large, overall working life can be affected, require higher to magnetic switch, processing cost is high, and cost performance is low.
Model utility content
The purpose of this utility model is to provide a kind of pneumatic hydraulic 3 position-5 way valve, comprises valve body, pneumatic piston, pneumatic piston plug, ball seat, stem stem, steel ball and central spring;
Described pneumatic piston comprises left side pneumatic piston and right side pneumatic piston; Described pneumatic piston plug comprises left side pneumatic piston plug and right side pneumatic piston plug; Described stem stem comprises: left side stem stem and right side stem stem; Described steel ball comprises: a steel ball, No. two steel balls, No. three steel balls and No. four steel balls;
Described valve inner is provided with from left to right successively: pneumatic piston chamber, left side, drain charge chamber, left side, left side connection chamber, center cavity, right side connection chamber, drain charge chamber, right side, pneumatic piston chamber, right side;
Described left side oil outlet is connected on the cavity of left side connection chamber; Described left side return opening is connected on drain charge chamber, described left side; Described filler opening is connected on the cavity of center cavity; Described right side oil outlet is connected on the connection chamber of described right side; Right side return opening is connected on drain charge chamber, described right side;
The rear end of described left side pneumatic piston is assemblied in the cavity in pneumatic piston chamber, left side, and the front end of described left side pneumatic piston is provided with striker, and this striker loads in drain charge chamber, left side; Described left side stem stem is installed in the connection chamber of left side; Between the striker that a described steel ball is stuck in left side pneumatic piston and left side stem stem;
The rear end of described right side pneumatic piston is assemblied in the cavity in pneumatic piston chamber, right side, and the front end of described right side pneumatic piston is provided with striker, and this striker loads in drain charge chamber, right side; Described right side stem stem is installed in the connection chamber of right side; Between the striker that described No. four steel balls are stuck in right side pneumatic piston and left side stem stem;
Described central spring is installed in center cavity, and the two ends edge sealing of central spring connects No. two ball seats and No. three ball seats; Described No. two steel balls are stuck between left side stem stem and No. two ball seats; Described No. three steel balls are stuck between No. three ball seats and right side stem stem;
Described left side pneumatic piston plug gets lodged in the left end of valve body; Described right side pneumatic piston plug gets lodged in the right-hand member of valve body, and described left side spring one end is stuck on the inner side surface of left side pneumatic piston plug, and the other end is connected with bottom the pneumatic piston of left side; One end of described right side spring is stuck on the inner side surface of right side pneumatic piston plug, and the other end is connected with the bottom of right side pneumatic piston (17).
3 position-5 way valve described in the utility model realizes commutation by adopting pneumatic mode, and structure is different from hand-operated direction valve of the prior art and solenoid directional control valve, achieves the simplification of the control mode of commutation; Meanwhile, without the need to adopting electromagnet in valve body, effectively save cost of production; Further, the 3 position-5 way valve structure in the utility model is more ingenious compact, and saved installing space, Applicable scope is wider.
Described in the utility model, left side stem stem and stem stem two ends, right side are all provided with ball seat.In the utility model, No. seven ball seats and No. eight ball seats are set respectively at stem stem two ends, left side; No. five ball seats and No. six ball seats are set at stem stem two ends, right side; Steel ball contacts with ball seat, increases area of contact, can effectively prevent steel ball from misplacing, improve the sealing of steel ball.
On the striker of pneumatic piston front end, left side described in the utility model and/or the striker of pneumatic piston front end, described right side be provided with ball seat.On the striker of pneumatic piston front end, arranging ball seat in the utility model, is the area of contact in order to increase between steel ball and ball seat equally, can effectively prevent steel ball from misplacing, improve the sealing of steel ball.
On the left of the intracavity diameter > in pneumatic piston chamber, left side described in the utility model drain charge chamber intracavity diameter > on the left of the intracavity diameter of connection chamber.On the right side of the intracavity diameter > in pneumatic piston chamber, described right side drain charge chamber intracavity diameter > on the right side of the intracavity diameter of connection chamber.
By arranging left side connection chamber and right side connection chamber in the utility model, better can locate the position of striker, when guaranteeing that striker contacts with steel ball, surface of contact is relative, does not tremble, improves the precision of work, and then the working life of improving product; Simultaneously according to Pascal's law, thrust equals pressure and is multiplied by active area, when the diameter of pneumatic piston be greater than steel ball size reach enough multiples time, low pressure pressurized gas and the power-actuated pneumatic piston of spring can promote outside steel ball, by the effect between the stem stem that contacts with each other, thus push the steel ball of high-pressure and hydraulic effect open, connect oil circuit and start suppressing of this mouthful; So the intracavity diameter in drain charge chamber on the left of the intracavity diameter > in pneumatic piston chamber, described left side; The intracavity diameter in drain charge chamber on the right side of the intracavity diameter > in pneumatic piston chamber, described right side; And the steel ball being positioned at left side and drain charge chamber, right side must seal up left side connection chamber and right side, so the diameter of steel ball must be greater than the inner diameter of connection chamber; So the intracavity diameter of connection chamber on the left of the intracavity diameter > in drain charge chamber, left side; The intracavity diameter of connection chamber on the right side of the intracavity diameter > in drain charge chamber, right side.
In the utility model all ball seats inner side surface shape with to support the outer circumferential face shape of steel ball suitable.The utility model, by being matched by the outer circumferential face of ball seat inner side surface shape and steel ball, is increased the area of contact of ball seat and steel ball, is improved the sealing of steel ball by enlarge active surface.
Left hand piston back-end sealing circle is provided with between left side pneumatic piston and body cavity described in the utility model; Left hand piston forward end seal circle is provided with between described left side pneumatic piston front end striker and left side connection chamber; Left side plug seal ring is provided with between described left side pneumatic piston plug and body cavity;
Right hand piston back-end sealing circle is provided with between described right side pneumatic piston and body cavity; Right hand piston forward end seal circle is provided with between described right side pneumatic piston front end striker and right side connection chamber; Right side plug seal ring is provided with between described right side pneumatic piston plug and body cavity.
Preventing the gas of hydraulic oil and promotion pneumatic piston from spilling from gap, joint by arranging multiple-sealed circle in the utility model, improve the sealing of product.
Described in the utility model, valve body comprises: left side valve body and right side valve body; Left side valve body and right side valve body are bolted.By valve body is divided into two in the utility model, with bolts, reduce the difficulty of valve body processing, make processing more simple and convenient.
Also disclose the method for work of above-mentioned pneumatic hydraulic 3 position-5 way valve in the utility model, the concrete steps of the method are as follows:
(1), when hydraulic system does not need to suppress, left side pneumatic piston and right side pneumatic piston do not stress; No. two steel balls are against the port of left side connection chamber by central spring by No. two ball seats at two ends, by No. three ball seats, No. three steel balls are against the port of right side connection chamber;
(2) when hydraulic system needs left side oil outlet to suppress, left side pressurized gas is connected, pressurized gas acts on the bottom of left side pneumatic piston, under the spring-force driven dual of pressurized gas and left side spring, the effect that described left side pneumatic piston overcomes central spring and hydraulic coupling is moved to the right, the striker of pneumatic piston front end, left side promotes a steel ball, and a steel ball is pressed to the left end of left side connection chamber, and then promotes left side stem stem by a steel ball; Described left side stem stem promotes No. two steel balls and leaves left side connection chamber; Filler opening is communicated with left side oil outlet, realizes hydraulic system the suppressing of oil outlet to the left;
(3) when hydraulic system needs right side oil outlet to suppress, right side pressurized gas is connected, pressurized gas acts on the bottom of described right side pneumatic piston, under the spring-force driven dual of pressurized gas and right side spring, the effect that described left side pneumatic piston overcomes central spring and hydraulic coupling is moved to the left, the striker of pneumatic piston front end, right side promotes No. four steel balls, and No. four steel balls is pressed to the right-hand member of right side connection chamber, and then promotes right side stem stem by No. four steel balls; Described right side stem stem promotes No. three steel balls and leaves right side connection chamber; Filler opening is communicated with right side oil outlet, realizes hydraulic system the suppressing of oil outlet to the right.
Beneficial effect:
The utility model compared with prior art tool has the following advantages:
1, pneumatic hydraulic 3 position-5 way valve described in the utility model is by designing cleverly, adopts the mode of pressurized gas, by an easy structure, achieves the commutation control of 3 position-5 way valve.
2, pneumatic hydraulic 3 position-5 way valve structure described in the utility model is simple, without the need to adopting electromagnet compared with control valve of the prior art, reducing cost of production, improve working life, applied widely.
3, have employed steel ball sealing in the utility model, hydraulic pressure is higher, good sealing effect, seals more reliable, not easily leakage of oil occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of pneumatic hydraulic 3 position-5 way valve described in the utility model.
Fig. 2 is the closed condition schematic diagram of pneumatic hydraulic 3 position-5 way valve described in the utility model.
Fig. 3 is the opening state schematic diagram of pneumatic hydraulic 3 position-5 way valve described in the utility model.
Embodiment
Present embodiment discloses a kind of pneumatic hydraulic 3 position-5 way valve, it is characterized in that: comprise valve body, pneumatic piston, pneumatic piston plug, ball seat, stem stem, steel ball and central spring, each component names is as follows: left side pneumatic piston plug 1, left side jump ring 2, left side pneumatic piston 3, a ball seat 4, a steel ball 5, left side stem stem 6, left side oil outlet 7, No. two steel balls 8, No. two ball seats 9, bolt 10, No. three ball seats 11, No. three steel balls 12, right side oil outlet 13, right side stem stem 14, No. four steel balls 15, No. four ball seats 16, right side pneumatic piston 17, right side jump ring 18, right side pneumatic piston plug, 19, right side spring 20, right side plug seal ring 21, right hand piston back-end sealing circle 22, right hand piston forward end seal circle 23, right side return opening 24, No. five ball seats 25, No. six ball seats 26, right side valve body 27, valve body connects seal ring 28, central spring 29, filler opening 30, No. seven ball seats 31, left side valve body 32, No. eight ball seats 33, left side return opening 34, left hand piston forward end seal circle 35, left hand piston back-end sealing circle 36, left side spring 37, left side plug seal ring 38, pneumatic piston chamber 39, left side, pneumatic piston chamber 40, right side, center cavity 41, left side connection chamber 42, right side connection chamber 43, drain charge chamber 44, left side, drain charge chamber 45, right side.
The annexation of above-mentioned each parts is as follows:
Described valve body comprises left side valve body 32 and right side valve body 27; Left side valve body 32 and right side valve body 27 connect into entirety by bolt 10;
Described valve inner is provided with from left to right successively: pneumatic piston chamber, left side 39, drain charge chamber, left side 44, left side connection chamber 42, center cavity 41, right side connection chamber 43, drain charge chamber, right side 45, pneumatic piston chamber, right side 40;
Described left side oil outlet 7 is connected on the cavity of left side connection chamber 42; Described left side return opening 34 is connected on drain charge chamber, described left side 44; Described filler opening 30 is connected on the cavity of center cavity 21; Described right side oil outlet 13 is connected on described right side connection chamber 42; Right side return opening 24 is connected on drain charge chamber, described right side 45;
The rear end of described left side pneumatic piston 3 is assemblied in the cavity in pneumatic piston chamber 39, left side, and the front end of described left side pneumatic piston 3 is provided with striker; A ball seat 4 is equipped with in described striker front end, and this striker is inconjunction with the ball seat 4 be arranged in striker and all loads in drain charge chamber 44, left side; Described left side stem stem 6 is installed in the connection chamber 42 of left side; A described steel ball 5 is stuck between a ball seat 4 and left side stem stem 6;
The rear end of described right side pneumatic piston 17 is assemblied in the cavity in pneumatic piston chamber 40, right side, and the front end of described right side pneumatic piston 17 is provided with striker, and No. four ball seats 16 are installed in striker front end, and No. four ball seats 16 of the related installation of this striker load in drain charge chamber 45, right side; Described right side stem stem 14 is installed in the connection chamber 43 of right side; Described No. four steel balls 15 are stuck between No. four ball seats 16 and left side stem stem 6;
Described central spring 29 is installed in center cavity 41, and the two ends edge sealing of central spring 29 connects No. two ball seats 9 and No. three ball seats 11; The left end of described left side stem stem 6 is provided with No. eight ball seats 33, and right side is provided with No. seven ball seats 31; Described right side stem stem 14 left end is provided with No. six ball seats 26, and right-hand member is provided with No. five ball seats 25; Described No. two steel balls 8 are stuck between No. seven ball seats 31 and No. two ball seats 9; Described No. three steel balls 12 are stuck between No. three ball seats 11 and No. six ball seats 26;
Described left side pneumatic piston plug blocks up 1 and is arranged on left end at valve body by left side jump ring 2; Described right side pneumatic piston plug 19 is arranged on the right-hand member of valve body by right side jump ring 18, spring 37 one end, described left side is stuck on the inner side surface of left side pneumatic piston plug 1, and the other end is connected with bottom left side pneumatic piston 3; One end of described right side spring 20 is stuck on the inner side surface of right side pneumatic piston plug 19, and the other end is connected with the bottom of right side pneumatic piston 17.
Described left side stem stem 6 and right side stem stem 14 two ends are all provided with ball seat.
On the left of the intracavity diameter > in pneumatic piston chamber, described left side 39 drain charge chamber 44 intracavity diameter > on the left of the intracavity diameter of connection chamber 42.On the right side of the intracavity diameter > in pneumatic piston chamber, described right side 10 drain charge chamber 45 intracavity diameter > on the right side of the intracavity diameter of connection chamber 43.
In the present embodiment all ball seats inner side surface shape with to support the outer circumferential face shape of steel ball suitable.
Left hand piston back-end sealing circle 36 is provided with between described left side pneumatic piston 3 and body cavity; Left hand piston forward end seal circle 35 is provided with between described left side pneumatic piston front end striker and left side connection chamber 42; Left side plug seal ring 38 is provided with between described left side pneumatic piston plug 1 and body cavity; Right hand piston back-end sealing circle 22 is provided with between described right side pneumatic piston 17 and body cavity; Right hand piston forward end seal circle 23 is provided with between described right side pneumatic piston front end striker and right side connection chamber 43; Right side plug seal ring 21 is provided with between described right side pneumatic piston plug 19 and body cavity.
The working principle of the present embodiment is as follows:
(1), when hydraulic system does not need to suppress, left side pneumatic piston 3 and right side pneumatic piston 17 do not stress; No. two steel balls 8 are against the port of left side connection chamber 42 by central spring 29 by No. two ball seats 9 at two ends, by No. three ball seats 11, No. three steel balls 12 are against the port of right side connection chamber 43; Filler opening 30 is not communicated with any oil outlet;
(2) when hydraulic system needs left side oil outlet 7 to suppress, left side pressurized gas is connected, pressurized gas acts on the bottom of left side pneumatic piston 3, under the spring-force driven dual of pressurized gas and left side spring 37, the effect that described left side pneumatic piston 3 overcomes central spring 29 and hydraulic coupling is moved to the right, the striker of pneumatic piston 3 front end, left side promotes a steel ball 5, and a steel ball 5 is pressed to the left end of left side connection chamber 42, and then promotes left side stem stem 6 by a steel ball 5; Described left side stem stem 6 promotes No. two steel balls 8 and leaves left side connection chamber 42; Filler opening 30 is communicated with left side oil outlet 7, realizes hydraulic system the suppressing of oil outlet 7 to the left;
(3) when hydraulic system needs right side oil outlet 13 to suppress, right side pressurized gas is connected, pressurized gas acts on the bottom of described right side pneumatic piston 17, under the spring-force driven dual of pressurized gas and right side spring 37, the effect that described left side pneumatic piston 3 overcomes central spring 20 and hydraulic coupling is moved to the left, striker and No. four ball seats 16 of pneumatic piston 17 front end, right side promote No. four steel balls 15, and No. four steel balls 15 are pressed to the right-hand member of right side connection chamber 43, and then promote right side stem stem 14 by No. four steel balls 15; Described right side stem stem 14 promotes No. three steel balls 12 and leaves right side connection chamber 43; Filler opening 30 is communicated with right side oil outlet (13), realizes hydraulic system the suppressing of oil outlet 13 to the right.

Claims (8)

1. a pneumatic hydraulic 3 position-5 way valve, is characterized in that: comprise valve body, pneumatic piston, pneumatic piston plug, ball seat, stem stem, steel ball and central spring;
Described pneumatic piston comprises left side pneumatic piston (3) and right side pneumatic piston (17); Described pneumatic piston plug comprises left side pneumatic piston plug (1) and right side pneumatic piston plug (19); Described stem stem comprises: left side stem stem (6) and right side stem stem (14); Described steel ball comprises: a steel ball (5), No. two steel balls (8), No. three steel balls (12) and No. four steel balls (15);
Described valve inner is provided with from left to right successively: pneumatic piston chamber, left side (39), drain charge chamber, left side (44), left side connection chamber (42), center cavity (41), right side connection chamber (43), drain charge chamber, right side (45), pneumatic piston chamber, right side (40);
Described left side oil outlet (7) is connected on the cavity in left side connection chamber (42); Described left side return opening (34) is connected on drain charge chamber, described left side (44); Described filler opening (30) is connected on the cavity of center cavity (21); Described right side oil outlet (13) is connected on described right side connection chamber (42); Right side return opening (24) is connected on drain charge chamber, described right side (45);
The rear end in described left side pneumatic piston (3) is assemblied in the cavity in pneumatic piston chamber, left side (39), and the front end in described left side pneumatic piston (3) is provided with striker, and this striker loads in drain charge chamber, left side (44); Described left side stem stem (6) is installed in left side connection chamber (42); Between the striker that a described steel ball (5) is stuck in left side pneumatic piston (3) and left side stem stem (6);
The rear end on described right side pneumatic piston (17) is assemblied in the cavity on pneumatic piston chamber, right side (40), and the front end on described right side pneumatic piston (17) is provided with striker, and this striker loads in drain charge chamber, right side (45); Described right side stem stem (14) is installed in right side connection chamber (43); Between the striker that described No. four steel balls (15) are stuck in right side pneumatic piston (17) and left side stem stem (6);
Described central spring (29) is installed in center cavity (41), and the two ends edge sealing of central spring (29) connects No. two ball seats (9) and No. three ball seats (11); Described No. two steel balls (8) are stuck between left side stem stem (6) and No. two ball seats (9); Described No. three steel balls (12) are stuck between No. three ball seats (11) and right side stem stem (14);
Described left side pneumatic piston plug stifled (1) is at the left end of valve body; Described right side pneumatic piston plug (19) gets lodged in the right-hand member of valve body, and spring (37) one end, described left side is stuck on the inner side surface in left side pneumatic piston plug (1), and the other end is connected with left side pneumatic piston (3) bottom; The one end on described right side spring (20) is stuck on the inner side surface on right side pneumatic piston plug (19), and the other end is connected with the bottom of right side pneumatic piston (17).
2. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: described left side stem stem (6) and right side stem stem (14) two ends are all provided with ball seat.
3. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: on the striker of pneumatic piston (3) front end, described left side and/or the striker of pneumatic piston (17) front end, described right side be provided with ball seat.
4. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: on the left of the intracavity diameter > in pneumatic piston chamber, described left side (39) drain charge chamber (44) intracavity diameter > on the left of the intracavity diameter of connection chamber (42).
5. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: on the right side of the intracavity diameter > on pneumatic piston chamber, described right side (40) drain charge chamber (45) intracavity diameter > on the right side of the intracavity diameter of connection chamber (43).
6. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: the inner side surface shape of all ball seats with to support the outer circumferential face shape of steel ball suitable.
7. pneumatic hydraulic 3 position-5 way valve according to claim 1, is characterized in that: be provided with left hand piston back-end sealing circle (36) between described left side pneumatic piston (3) and body cavity; Left hand piston forward end seal circle (35) is provided with between described left side pneumatic piston front end striker and left side connection chamber (42); Left side plug seal ring (38) is provided with between described left side pneumatic piston plug (1) and body cavity;
Right hand piston back-end sealing circle (22) is provided with between described right side pneumatic piston (17) and body cavity; Right hand piston forward end seal circle (23) is provided with between described right side pneumatic piston front end striker and right side connection chamber (43); Right side plug seal ring (21) is provided with between described right side pneumatic piston plug (19) and body cavity.
8. pneumatic hydraulic 3 position-5 way valve according to claim 1, the phase is characterised in that: described valve body comprises: left side valve body (32) and right side valve body (27); Left side valve body (32) is connected by bolt (10) with right side valve body (27).
CN201520485924.5U 2015-07-08 2015-07-08 Pneumatic hydraulic tribit five -way switching -over valve Withdrawn - After Issue CN204756022U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520485924.5U CN204756022U (en) 2015-07-08 2015-07-08 Pneumatic hydraulic tribit five -way switching -over valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520485924.5U CN204756022U (en) 2015-07-08 2015-07-08 Pneumatic hydraulic tribit five -way switching -over valve

Publications (1)

Publication Number Publication Date
CN204756022U true CN204756022U (en) 2015-11-11

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Application Number Title Priority Date Filing Date
CN201520485924.5U Withdrawn - After Issue CN204756022U (en) 2015-07-08 2015-07-08 Pneumatic hydraulic tribit five -way switching -over valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964069A (en) * 2015-07-08 2015-10-07 实用动力(中国)工业有限公司 Pneumatic hydraulic three-position five-way reversing valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964069A (en) * 2015-07-08 2015-10-07 实用动力(中国)工业有限公司 Pneumatic hydraulic three-position five-way reversing valve

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