CN109611406A - A kind of hydraulicdirectional control valve - Google Patents

A kind of hydraulicdirectional control valve Download PDF

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Publication number
CN109611406A
CN109611406A CN201910027449.XA CN201910027449A CN109611406A CN 109611406 A CN109611406 A CN 109611406A CN 201910027449 A CN201910027449 A CN 201910027449A CN 109611406 A CN109611406 A CN 109611406A
Authority
CN
China
Prior art keywords
valve
spool
hydraulicdirectional control
control valve
instrumentation tubes
Prior art date
Application number
CN201910027449.XA
Other languages
Chinese (zh)
Inventor
高峰
丁顺刚
芮宏斌
吴庆
李艳
白少康
Original Assignee
西安理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安理工大学 filed Critical 西安理工大学
Priority to CN201910027449.XA priority Critical patent/CN109611406A/en
Publication of CN109611406A publication Critical patent/CN109611406A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401Valve members; Fluid interconnections therefor
    • F15B13/0402Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401Valve members; Fluid interconnections therefor
    • F15B2013/041Valve members; Fluid interconnections therefor with two positions

Abstract

The length of a kind of hydraulicdirectional control valve disclosed by the invention, including instrumentation tubes, instrumentation tubes offers square valve pool to surface, and valve pool has been embedded in valve body, and spool is equipped in valve body, and spool can move in valve body.A kind of hydraulicdirectional control valve of the invention facilitates pipeline operations by the way that valve body, spool and valve seat to be uniformly integrated in instrumentation tubes;The hydraulic chamber of the shape of a saddle is formed between the plunger and valve body of spool, convenient for the influence of the flowing of high-voltage high-speed liquid;The second annular groove being arranged on spool reduces influence of the radial force to valve commutation ability;Design triangle shape throttling channel on spool reduces influence of the instantaneous hydraulic dynamics to valve commutation ability.A kind of hydraulicdirectional control valve of the invention, can be integrated in instrumentation tubes, facilitate pipeline operations, easy to operate.

Description

A kind of hydraulicdirectional control valve

Technical field

The invention belongs to pipeline hydraulic equipment technical fields, and in particular to a kind of hydraulicdirectional control valve.

Background technique

In pipeline hydraulic machinery field, pipe robot is assembled into usually using helicoid hydraulic motor enters inside pipeline and made Industry is protruded into inside pipeline, specifically using several screwed work pipe nipple connections wherein being integrated with hydraulic pressure system in the pipe nipple that works System and control system etc..Due to the limitation of complex work environment in the diameter and pipeline of pipeline, the liquid being integrated in helicoid hydraulic motor The components such as pressure system need to carry out special designing, and standard requirements are higher.

The structure of Normal hydraulic reversal valve is independent valve seat and valve body, it is difficult to is integrated in helicoid hydraulic motor.Due to pipeline Interior environment is complicated, and hydraulic pump transportation work fluid path Cheng Yuan, the pressure of the pumping of working solution is big, the working solution flowing in hydraulic system Fastly, when leading to treatment fluid flow through valve port, the variation of flow direction and flowing velocity causes the variation of liquid momentum, on spool by The effect of hydraulic power, and the direction of hydraulic power can prevent spool mobile, increase the difficulty of manipulation spool.

There are the gaps of very little between the spool and valve body of reversal valve, and in the case where high pressure high flow rate, liquid can be into Enter gap and radial hydraulic pressure is generated to spool, when the hydraulic radial that reversal valve causes spool to be subject to because of foozle and rigging error When power is unevenly distributed, spool can generate shaking on the move, or even dry friction occurs with valve body and then leads to spool clamping.

Summary of the invention

The purpose of the present invention is to provide a kind of hydraulicdirectional control valve, complicated operating condition can adapt to, and using safe and stable Property it is high, maintenance is simple.

The technical scheme adopted by the invention is that: the length of a kind of hydraulicdirectional control valve, including instrumentation tubes, instrumentation tubes is opened to surface Equipped with square valve pool, valve pool has been embedded in valve body, and spool is equipped in valve body, and spool can move in valve body.

The features of the present invention also characterized in that:

Spool both ends are arranged with split ring;

The two sides of valve body are equipped with third annular groove, which is embedded in split ring.

Valve body both ends have been connected by screw to limit sprue.

The peripheral surface for limiting sprue is equipped with first annular groove, which is embedded with the first sealing ring.

Valve pool both ends are equipped with step, and voussoir has been bolted at the step, and voussoir is in contact with limit sprue.

Valve body is trapezoidal, and each inclined-plane corresponding matching of valve body presses voussoir.

Spool is equipped with the plunger of protrusion.

The quantity of plunger is no less than a;

Saddle type is used between each plunger of spool.

Two end plugs of spool are equipped with triangular form throttling channel.

The side of instrumentation tubes be respectively arranged with spool adjust mouth K, spool adjust mouth K, actuator port A, actuator port B and into Hydraulic fluid port P;Spool adjusts mouth K and spool adjusts the both ends that mouth K is located at instrumentation tubes;Actuator port A, actuator port B, oil inlet P are set It sets at the middle part of instrumentation tubes, and oil inlet P is arranged between actuator port A and actuator port B;

The other side of instrumentation tubes is set there are two unloading port T;

Spool adjust mouth K, spool adjust mouth K, actuator port A, actuator port B, oil inlet P, Liang Ge unloading port T, with Valve body is connected.

The beneficial effects of the present invention are: a kind of hydraulicdirectional control valve of the invention, by the way that valve body, spool are uniformly integrated in work In managing, facilitate pipeline operations;Spool can move in valve body, easy to accomplish can commutate, easy to operate;The plunger of spool The hydraulic chamber that the shape of a saddle is formed between valve body, convenient for the flowing of high-voltage high-speed liquid, while can prevent high pressure height stream In the case where speed, spool generates sliding;The second annular groove being arranged on spool reduces radial force to the shadow of commutation valve performance It rings;Design triangle shape throttling channel on spool reduces influence of the instantaneous hydraulic dynamics to valve commutation ability.One kind of the invention is hydraulic to change It to valve, can be integrated in instrumentation tubes, facilitate pipeline operations, easy maintenance.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of hydraulicdirectional control valve of the present invention;

Fig. 2 is a kind of valve core structure schematic diagram of hydraulicdirectional control valve of the present invention;

Fig. 3 is a kind of first time commutation station schematic diagram of hydraulicdirectional control valve of the present invention;

Fig. 4 is a kind of second of commutation station schematic diagram of hydraulicdirectional control valve of the present invention.

In figure: 1. instrumentation tubes, 2. voussoirs, 3. limit sprues, 4. split rings, 5. valve pools, 6. spools, 6-1. plunger, 7. valves Body, 8. first sealing rings.

Specific embodiment

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

The present invention provides a kind of hydraulicdirectional control valves, as shown in Figure 1, including instrumentation tubes 1, the length of instrumentation tubes 1 is opened to surface Equipped with square valve pool 5, square valve pool 5 has been embedded in valve body 7, and spool 6 is equipped in valve body 7, and spool 6 can move in valve body 7 It is dynamic.

6 both ends of spool are arranged with split ring 4;When spool 6 moves in valve body 7, the split ring 4 determines spool 6 Position.

The two sides of valve body 7 are equipped with third annular groove, and the third annular groove is for being embedded in the opening being set on spool 6 Ring 4.

The both ends of valve body 7 are equipped with limit sprue 3 by screw, and the limit sprue 3 is for limiting spool 6 in valve body 7 Interior range.

5 both ends of square valve pool are equipped with step, and voussoir 2 has been bolted at the step, the voussoir 2 and limit sprue 3 are in contact.

Valve body 7 is trapezoidal, and each inclined-plane corresponding matching of valve body 7 presses voussoir 2.It can prevent valve body 7 from existing using voussoir 2 It is moved on square valve pool 5.

The peripheral surface for limiting sprue 3 is equipped with first annular groove, is embedded with the first sealing ring 8 in first annular groove, First sealing ring 8 prevents leakage.

As shown in Fig. 2, spool 6 is equipped with the plunger 6-1 of protrusion, the peripheral surface of plunger 6-1 is equipped with second annular groove, The second annular groove is to reduce influence of the radial force to commutation valve performance.

The quantity of plunger 6-1 is no less than 3.

Two end plug 6-1 of spool 6 are equipped with triangular form throttling channel, which reduces instantaneous hydraulic dynamics to valve performance It influences.

As depicted in figs. 1 and 2, saddle type, the saddle type valve core structure and 7 row of valve body are used between each plunger 6-1 of spool 6 Journey special type hydraulic cavities, convenient for the disengaging of high pressure high flow rate liquid.

The side of instrumentation tubes 1 is respectively arranged with spool and adjusts mouth K1, spool adjusting mouth K2, actuator port A, actuator port B And oil inlet P;Spool adjusts mouth K1 and spool adjusts the both ends that mouth K2 is located at instrumentation tubes 1;Actuator port A, actuator port B, into The intermediate position of instrumentation tubes 1 is arranged in hydraulic fluid port P, and oil inlet P is arranged between actuator port A and actuator port B;

The other side of instrumentation tubes 1 is set there are two unloading port T;

Spool adjusts mouth K1, spool adjusts mouth K2, actuator port A, actuator port B, oil inlet P, Liang Ge unloading port T, It is connected with valve body 7;

Spool adjusts mouth K1, spool adjusts the connection of mouth K2, actuator port A, actuator port B, oil inlet P with valve body 7 It is equipped with the second sealing ring at mouthful, is equipped with filter screen at Liang Ge unloading port T.

A kind of workflow of hydraulicdirectional control valve of the present invention:

1. commutating for the first time: when hydraulicdirectional control valve commutates for the first time, as shown in Figure 1, when spool adjusts mouth K1 feed liquor, valve Core 6 promotes to the right, and internal cavity space contraction, the pressure increase of hydraulic cavities, actuator port A is connected to oil inlet P at this time, work The working solution for making hydraulic fluid port B is flowed out from unloading port T, and after spool 6 struts split ring 4, spool 6 is moved on, after split ring 4 reduces Spool 6 is positioned, reversal valve is in commutation station 3 at this time, as shown in figure 3, oil inlet P is connected to actuator port B at this time, Actuator port A is connected to pressure relief opening T, actuator port A connected hydraulic pipeline pressure release, working solution by oil inlet P from chamber into Enter actuator port B, into hydraulic system.

2. second of commutation:

When reversal valve commutates for the second time, spool adjusts mouth K2 feed liquor, and spool 6 pushes back, and spool 6 struts the return of split ring 4, Split ring 4 positions spool 6 after reducing, at this point, reversal valve is in commutation station 4.As shown in figure 4, at this time oil inlet P and Actuator port A connection, actuator port B be connected to pressure relief opening T, the hydraulic pipeline pressure release that actuator port B is connected, working solution by into Hydraulic fluid port P enters actuator port A from chamber, into hydraulic system.

By the above-mentioned means, a kind of hydraulicdirectional control valve of the invention, by the way that valve body 7, spool 6 are uniformly integrated in instrumentation tubes In 1, facilitate pipeline operations;Spool 6 can move in valve body 7, easy to accomplish can commutate, easy to operate;The plunger of spool 6 The hydraulic chamber that the shape of a saddle is formed between 6-1 and valve body 7, convenient for the flowing of high-voltage high-speed liquid, while can prevent high pressure In the case where high flow rate, spool 6 generates sliding;The second annular groove being arranged on spool 6 reduces radial force to commutation valve performance Influence;Design triangle shape throttling channel on spool 6 reduces influence of the instantaneous hydraulic dynamics to valve commutation ability.One kind of the invention Hydraulicdirectional control valve can be integrated in instrumentation tubes 1, facilitate pipeline operations, easy maintenance.

Claims (10)

1. a kind of hydraulicdirectional control valve, which is characterized in that including instrumentation tubes (1), the length of the instrumentation tubes (1) is to the surface side of offering Type valve pool (5), the valve pool (5) have been embedded in valve body (7), are equipped with spool (6) in the valve body (7), spool (6) energy It is enough to be moved in the valve body (7).
2. a kind of hydraulicdirectional control valve as described in claim 1, which is characterized in that spool (6) both ends are arranged with split ring (4);
The two sides of the valve body (7) are equipped with third annular groove, which is embedded in the split ring (4).
3. a kind of hydraulicdirectional control valve as claimed in claim 1 or 2, which is characterized in that valve body (7) both ends pass through screw It is connected with limit sprue (3).
4. a kind of hydraulicdirectional control valve as claimed in claim 3, which is characterized in that the peripheral surface of limit sprue (3) is set There is first annular groove, which is embedded with the first sealing ring (8).
5. a kind of hydraulicdirectional control valve as claimed in claim 3, which is characterized in that valve pool (5) both ends are equipped with step, this It has been bolted at rank voussoir (2), the voussoir (2) is in contact with the limit sprue (3).
6. a kind of hydraulicdirectional control valve as claimed in claim 5, which is characterized in that the valve body (7) is trapezoidal, the valve body (7) each inclined-plane corresponding matching presses the voussoir (2).
7. a kind of hydraulicdirectional control valve as described in claim 1, which is characterized in that the spool (6) is equipped with the plunger of protrusion (6-1)。
8. a kind of hydraulicdirectional control valve as claimed in claim 7, which is characterized in that the quantity of the plunger (6-1) is no less than 3 It is a;
Saddle type is used between each plunger 6-1 of the spool (6).
9. a kind of hydraulicdirectional control valve as claimed in claim 7 or 8, which is characterized in that two end plug (6- of the spool (6) 1) it is equipped with triangular form throttling channel.
10. a kind of hydraulicdirectional control valve as described in claim 1, which is characterized in that the side of the instrumentation tubes (1) is respectively set There is spool to adjust mouth K1, spool adjusting mouth K2, actuator port A, actuator port B and oil inlet P;The spool adjusts mouth K1 and institute It states spool and adjusts the both ends that mouth K2 is located at the instrumentation tubes (1);The actuator port A, the actuator port B, the oil inlet P Middle part in the instrumentation tubes (1) is set, and oil inlet P setting the actuator port A and actuator port B it Between;
The other side of the instrumentation tubes (1) is set there are two unloading port T;
The spool adjusts mouth K1, the spool adjusts mouth K2, the actuator port A, the actuator port B, the oil inlet P, two unloading port T are connected with the valve body (7).
CN201910027449.XA 2019-01-11 2019-01-11 A kind of hydraulicdirectional control valve CN109611406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910027449.XA CN109611406A (en) 2019-01-11 2019-01-11 A kind of hydraulicdirectional control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910027449.XA CN109611406A (en) 2019-01-11 2019-01-11 A kind of hydraulicdirectional control valve

Publications (1)

Publication Number Publication Date
CN109611406A true CN109611406A (en) 2019-04-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910027449.XA CN109611406A (en) 2019-01-11 2019-01-11 A kind of hydraulicdirectional control valve

Country Status (1)

Country Link
CN (1) CN109611406A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2839687Y (en) * 2005-07-22 2006-11-22 上海立新液压有限公司 Two-position six-way guiding reversing valve
CN201155492Y (en) * 2008-01-22 2008-11-26 山东法因数控机械股份有限公司 Mechanical servo valve and hydraulic circuit applying same
CN201155592Y (en) * 2008-02-26 2008-11-26 谢蔚敏 Hydraulic change-over valve
CN201265571Y (en) * 2008-10-08 2009-07-01 上海立新液压有限公司 Novel hydraulic reversing valve
CN201836134U (en) * 2010-05-11 2011-05-18 上海华岛液压设备制造有限公司 Manual reversing valve
CN102297171A (en) * 2010-07-30 2011-12-28 三一重工股份有限公司 Hydraulic valve, hydraulic valve group and hydraulic valve control method
CN205592212U (en) * 2016-04-22 2016-09-21 济南弋泽展特机械有限公司 Valve member convenient to installation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2839687Y (en) * 2005-07-22 2006-11-22 上海立新液压有限公司 Two-position six-way guiding reversing valve
CN201155492Y (en) * 2008-01-22 2008-11-26 山东法因数控机械股份有限公司 Mechanical servo valve and hydraulic circuit applying same
CN201155592Y (en) * 2008-02-26 2008-11-26 谢蔚敏 Hydraulic change-over valve
CN201265571Y (en) * 2008-10-08 2009-07-01 上海立新液压有限公司 Novel hydraulic reversing valve
CN201836134U (en) * 2010-05-11 2011-05-18 上海华岛液压设备制造有限公司 Manual reversing valve
CN102297171A (en) * 2010-07-30 2011-12-28 三一重工股份有限公司 Hydraulic valve, hydraulic valve group and hydraulic valve control method
CN205592212U (en) * 2016-04-22 2016-09-21 济南弋泽展特机械有限公司 Valve member convenient to installation

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