CN202510441U - Automatic reversing valve - Google Patents
Automatic reversing valve Download PDFInfo
- Publication number
- CN202510441U CN202510441U CN2012201182855U CN201220118285U CN202510441U CN 202510441 U CN202510441 U CN 202510441U CN 2012201182855 U CN2012201182855 U CN 2012201182855U CN 201220118285 U CN201220118285 U CN 201220118285U CN 202510441 U CN202510441 U CN 202510441U
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- valve
- control valve
- main valve
- control
- spring
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Abstract
The utility model provides an automatic reversing valve, which comprises a main valve body, a main valve core, a control valve body, a control valve core, a left end cover and a right end cover, wherein a control valve formed by the control valve core, the control valve body, a steel ball I, an ejector pin, a control valve spring, a filter core, a set nut and a control valve regulating rod is arranged at the left end of the main valve core and mounted in the main valve body; the left end cover is arranged at the left end of the control valve, the right end cover is arranged at the right end of the main valve core, and a unified organic function body is formed by the left end cover, the right end cover and the main valve body; a disc spring is arranged between the control valve body and the left end cover; and a main valve core spring is arranged between the main valve core and the right end cover. The automatic reversing valve has a simple process and is easy to assemble; and sequence valves are adopted to replace relief valves and the internal structural layout of the valve is simultaneously simplified and optimized, so that an explosion protection requirement can be satisfied, an electrical apparatus control system can also be simplified, and the automatic reversing valve can be widely applied to natural gas compression systems and garbage compression systems.
Description
Technical field
The utility model relates to hydrovalve, is specially the auto reversive hydrovalve of a kind of ability.
Background technique
Along with the large-scale application of heavy mechanical equipment, hydraulic driving is widely adopted as a kind of very important driving mode, and hydraulic system and correlation technique thereof also reach its maturity.
In present hydraulicdirectional control valve, adopt manually more, automatically controlled; Gas control, external power such as hydraulic control drive the selector valve switching-over, and there is extremely strict requirement of explosion proof in some field; Require simplified system, need not extraneous the intervention, like rock gas compression substation as far as possible; Garbage compression station (requirement of explosion proof is arranged), objective requirement hydraulic system need a kind of selector valve to satisfy the in-plant intervention of the personnel that need not can to commutate voluntarily but also satisfy explosion-proof demand.
Summary of the invention
The technical problem that the utility model solved is to provide a kind of automatic diverter valve, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technological scheme to realize:
A kind of automatic diverter valve comprises main valve body, main valve plug, control valve body, control spool, left end cap and right end cap etc., and wherein the left end of main valve plug is served as reasons and controlled spool, control valve body, steel ball one; Push rod, control valve spring, filter core; Setscrew nut, the control valve that control valve adjustable lever etc. are formed is installed in the main valve body; Left end cap is arranged on the left end of control valve, and right end cap is arranged on the right-hand member of main valve plug, constitutes a unified organic functions body with main valve body; Between control valve body and left end cap, be provided with the dish spring, be provided with the main valve plug spring between main valve plug and the right end cap, the balance of spool is being kept in dish spring and the acting in conjunction of main valve plug spring.
Said main valve plug inner hollow is provided with spacing collar and is positioned at the left side, and small valve core is positioned at the right, in main valve plug.The left side of spacing collar is a control valve; The setscrew nut of control valve and control valve adjustable lever make the filter core location, and the control valve adjustable lever applies pre-compression force to control valve spring left, and control valve spring applies active force left to push rod; The push rod left end is a steel ball one; So on steel ball one, be applied with an active force left, this active force tries hard to make steel ball one tightly to be fitted in valve seat (aperture) in the control valve body, and valve port is closed.The left end of steel ball one is the control spool, and the control spool is as receiving the action of hydraulic force of left end, and if this power is greater than the loaded spring power of steel ball one right-hand member and the hydraulic coupling of control spool right-hand member, and then steel ball one will be pushed away by the right side, break away from valve seat, make the chamber overflow of steel ball one left side.
Said main valve plug and right end cap interrelate through the main valve plug spring, and in the main valve plug spring, the right of small valve core also is provided with small plunger, and the right-hand member of small plunger contacts with right end cap, and the left side contacts with small valve core through the small plunger spring.
Be provided with two steel balls in the said small valve core, middle between the steel ball have the small valve core spring to support two steel balls.
Also be provided with three, two sequence valves of ball check valve and one-way valve and some throttle orifices in the said main valve body, orifice plug constitutes said automatic diverter valve jointly, realizes auto reversive function.
Beneficial effect: the utility model technology is simple, and is easy to use, and assembling adopts sequence valve to substitute relief valve easily; Simultaneously simplify and optimize in valve internal structure layout, efficiently solve the automatic reverse difficulty and be prone to the card valve, reliability is not high, regulates difficulty; Leakage of oil easily, the problem of withstand voltage low grade both can realize requirement of explosion proof; Also electrical apparatus control system can be simplified, the rock gas compression can be widely used in, systems such as rubbish compression.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the utility model.
Fig. 2 is the structural representation of the utility model preferred embodiment.
Among the figure: left end cap 1, dish spring 2, control valve body 3, control spool 4, steel ball 1, push rod 6, control valve spring 7, filter core 8, setscrew nut 9, control valve adjustable lever 10, spacing collar 11, main valve plug 12, main valve body 13, small valve core 14, steel ball 2 15, small valve core spring 16, small plunger 17, small plunger spring 18, main valve plug spring 19, right end cap 20, ball check valve 21, sequence valve Pp22, sequence valve Pb23, one-way valve 24.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of automatic diverter valve of 2, comprise main valve body 13, main valve plug 12, control valve body 3, control spool 4, left end cap 1 and right end cap 20 etc., wherein serve as reasons control spool 4, control valve body 3 of the left end of main valve plug 12; Steel ball 1, push rod 6, control valve spring 7; Filter core 8, setscrew nut 9, the control valve that control valve adjustable lever 10 grades are formed; Be installed in the main valve body 13; Left end cap 1 is arranged on the left end of control valve, and right end cap 20 is arranged on the right-hand member of main valve plug 12, constitutes a unified organic whole with main valve body 13; Between control valve body 3 and left end cap 1, be provided with dish spring 2, be provided with main valve plug spring 19 between main valve plug 12 and the right end cap 20.Said main valve plug 12 inner hollow are provided with spacing collar 11 and are positioned at the left side, and small valve core 14 is positioned at the right; In main valve plug 12, the left side of spacing collar 11 is control valves, is provided with setscrew nut 9 and control valve adjustable lever 10; In control valve body 3; The right of control spool 4 is provided with push rod 6, and push rod 6 contacts with control valve adjustable lever 10, and the outside is with control valve spring 7.Said main valve plug 12 is connected through main valve plug spring 19 with right end cap 20, and in main valve plug spring 19, the right of small valve core 14 also is provided with small plunger 17, and the right-hand member of small plunger 17 links to each other with right end cap 20, and the left side links to each other with small valve core 14 through small plunger spring 18.
Between said control spool 4 and push rod 6, also be provided with the steel ball 1 of control usefulness, be provided with the filter core 8 that filters usefulness between control spool 4 and the setscrew nut 9.Be provided with two steel balls 2 15 in the said small valve core 14, middle between the steel ball have small valve core spring 16 to support two steel balls.Also be provided with ball check valve 21, sequence valve Pp22, sequence valve Pb23 and one-way valve 24 in the said main valve body 13.
The utility model workflow is following.
B termination cylinder rod chamber, A termination oil cylinder rodless cavity.
1, initial position: P leads to B, and A leads to T.
Because C3, hydraulic fluid ports such as C4 have throttling pore and T mouth to lead to, after pump stopped, C3 end (left end of main valve plug 12) oil pressure released very soon, and at right-hand member small plunger spring 18, under 19 actings in conjunction of main valve plug spring, main valve plug 12 moves to left.Realize diagram P-B intercommunication, the A-T intercommunication.
After starting oil pump, P leads to B, and A leads to T.So oil cylinder is return.Up to having moved back.
When has moved back because of oil cylinder in the B chamber, when pressure rises to certain value, overcome sequence valve Pb23 place spring thrust; Opening sequence valve Pb23, few part is got back to fuel tank T through the J1 aperture, and the ball check valve 21 that major part is pushed open in the left end cap 1 gets into left end cap 1 inner chamber; Get into the C4 mouth of control spool 4, get into C3 through the J2 hole, the C3 chamber is a few T mouth that partly gets into C2 through J3 wherein; C3 end oil pressure acts on main valve plug 12 left ends, comprises that a part through behind the filter core 8, gets into main valve plug 12 internal position limited sleeve tubes 11 inner chambers by setscrew nut 9 half slots; Pass small valve core 14 inner chambers and act on small plunger 17 left ends; The hydraulic coupling that acts on main valve plug 12 like this overcomes right-hand member two spring forces, so and small valve core 14 is temporarily to be connected with main valve plug 12 through steel ball 2 15. and when main valve plug 12 moves to right, drive small valve core 14 and move to right.Back small valve core 14 limited the coming to a halt that move to right, two steel balls of steel ball 2 15 are thrown off main valve plug 12 inside grooves, and the main valve plug 12 right shoulder rank, back that move to right again keep apart with the T mouth, continue to move to right 4 annular slotted holes of main valve plug 12 and 4 annular slotted holes communications of small valve core 14 again.Main valve plug 12 moves to right in the process, accomplishes and blocks being connected of P and B, and B and C3 connect gradually; Block being connected of A and T; P and A connect gradually; After blocking being connected of P and B, sequence valve Pb23 no-output is because of Pp>Pb; Pressure rises to and overcomes sequence valve Pp22 spring force, and sequence valve Pp22 is opened, the effect of P mouth pressure oil alternate orders valve Pb23 behind sequence valve Pp22 (this moment, sequence valve Pb23 turn-offed); Keep and promote main valve plug 12 left end pressure, still be not communicated with between B-T this moment, and B mouth fluid flows to the P mouth by integrated package internal check valve 24; Realize differentially, the rodless cavity oil inlet quantity increases, and oil cylinder is released fast; A little pushes the steel ball 1 in the control valve body 3 open to making the B cavity pressure continue to be elevated to be enough to overcome control valve spring 7 setting power when load rise; Be overflow, left end cap 1 chamber pressure is kept this control valve spring 7 setting power, but rising (the few part of B chamber oil this moment can be passed through the filter core 8 entering C4 chamber through the J2 hole again) is continued because of the pressure that is squeezed in the B chamber.When B is that power that the C3 cavity pressure acts on control valve body 3 right-hand members surpasses in left end cap 1 pressure P p and the left end cap 1 after dish spring 2 thrusts, the B cavity pressure promotes control valve body 3 and moves to left, and B overflows to T, makes the B mouth pressure not continue to raise, thereby finishes differentially, and realization is release normally.The logical A of P this moment, B leads to the T state through back pressure valve.When main valve plug 12 moves to right in right end cap 20 chambeies oil be pressed against the T mouth through J4, restriction plays the effect of control main valve plug 12 travelling speeds.
2, spool state: P leads to A, and B is through the logical T of back pressure valve.Oil cylinder is released.
P leads to A, and B leads to T behind back pressure valve, and oil cylinder normal (non-differential) is released.Not having (gently) load has pushed away have no way of the again oil-feed of rod chamber of (or meet heavy load stop to advance) B chamber, back and has pushed; The A cavity pressure is raised to certain value simultaneously, and because of logical control valve body 3 inner control spools 4 left ends in A chamber, pressure oil promotes control spool 4 and moves to right; Overcome control valve spring 7 thrusts, back down steel ball.Make the T mouth of the logical C2 of C4, left end cap 1 chamber pressure is zero, because of C4 is logical through J2 and C3, causes main valve plug 12 left end pressure to reduce.So main valve plug 12 moves to left under right-hand member two spring force effects.Main valve plug 12 left end chamber oil pressure are linked up through 4 annular slotted holes of its 4 annular slotted holes and small valve core 14 and the communication that is connected right-hand member T circular groove makes main valve plug 12 left end pressure complete obiterations.Help main valve plug 12 to continue to move to left; After main valve plug 12 continues to move left to the end; The communication of 14 4 looping pits of small valve core and main valve plug 12 annular slotted holes is ended, and gets back to diagram initial position (two locking balls 2 15 on the small valve core 14 fall in main valve plug 12 internal channel), accomplishes a circulation.This moment, main valve plug 12 positions were in initial position.P-B；A-T。So oil cylinder is return.Reciprocation cycle like this is till the oil-feed of P mouth stops to supply with.
More than show and described the advantage of basic principle, major character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model protection defined by the appended claims and their equivalents defined
.
Claims (6)
1. an automatic diverter valve comprises main valve body, main valve plug, control valve body, control spool, left end cap and right end cap, it is characterized in that, the left end of main valve plug is served as reasons and controlled spool, control valve body; Steel ball one, push rod, control valve spring, filter core; Setscrew nut, the control valve that the control valve adjustable lever is formed is installed in the main valve body; Left end cap is arranged on the left end of control valve, and right end cap is arranged on the right-hand member of main valve plug, constitutes a unified organic functions body with main valve body; Between control valve body and left end cap, be provided with the dish spring, be provided with the main valve plug spring between main valve plug and the right end cap.
2. a kind of automatic diverter valve according to claim 1 is characterized in that, said main valve plug inner hollow is provided with spacing collar and is positioned at the left side, and small valve core is positioned at the right, and control valve body the right is equipped with filter core, setscrew nut and control valve adjustable lever; In control valve body, the right of control spool is provided with steel ball one, push rod, and control valve spring and control valve adjustable lever, said push rod, control valve spring, control valve adjustable lever and setscrew nut, steel ball one, the control spool, control valve body is formed control valve jointly.
3. according to the said a kind of automatic diverter valve of claim 1, it is characterized in that, between said control spool and push rod, also be provided with the steel ball that pilot pressure is used, be provided with the filter core that filters usefulness between control spool and the setscrew nut.
4. according to the said a kind of automatic diverter valve of claim 1; It is characterized in that said main valve plug is connected through the main valve plug spring with right end cap, in the main valve plug spring; The right of small valve core; Also be provided with small plunger, the right-hand member of small plunger links to each other with right end cap, and the left side links to each other with small valve core through the small plunger spring.
5. according to the said a kind of automatic diverter valve of claim 1, it is characterized in that, be provided with two steel balls in the said small valve core, middle between the steel ball have the small valve core spring to support two steel balls.
6. according to the said a kind of automatic diverter valve of claim 1, it is characterized in that, also be provided with ball check valve, sequence valve and one-way valve in the said main valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201182855U CN202510441U (en) | 2012-03-27 | 2012-03-27 | Automatic reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201182855U CN202510441U (en) | 2012-03-27 | 2012-03-27 | Automatic reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510441U true CN202510441U (en) | 2012-10-31 |
Family
ID=47062931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201182855U Expired - Fee Related CN202510441U (en) | 2012-03-27 | 2012-03-27 | Automatic reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775410A (en) * | 2014-01-08 | 2014-05-07 | 浙江大学 | Automatic reversing slide valve |
| CN108518376A (en) * | 2018-05-18 | 2018-09-11 | 宁波真格液压科技有限公司 | A kind of automatic diverter valve |
-
2012
- 2012-03-27 CN CN2012201182855U patent/CN202510441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775410A (en) * | 2014-01-08 | 2014-05-07 | 浙江大学 | Automatic reversing slide valve |
| CN108518376A (en) * | 2018-05-18 | 2018-09-11 | 宁波真格液压科技有限公司 | A kind of automatic diverter valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20170327 |