CN104295772A - Reversing valve spool two-stage fluid control structure - Google Patents
Reversing valve spool two-stage fluid control structure Download PDFInfo
- Publication number
- CN104295772A CN104295772A CN201410551011.9A CN201410551011A CN104295772A CN 104295772 A CN104295772 A CN 104295772A CN 201410551011 A CN201410551011 A CN 201410551011A CN 104295772 A CN104295772 A CN 104295772A
- Authority
- CN
- China
- Prior art keywords
- ring
- end cap
- spring seat
- valve core
- cavity volume
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a reversing valve spool two-stage fluid control structure comprising a valve body and a valve spool. Two ends of the valve body are provided with a first end cover and a second end cover; one side of the valve body is provided with an other-linkage pilot oil hole; the first end cover is provided with a spring seat, a ring and a spring; one end of the spring seat is connected to the valve spool, the other end is connected to the spring, the ring and the first end cover form a sealed first cavity and second cavity, the ring is provided with grooves, the first end cover is provided with a flow channel hole, one end of the flow channel hole is communicated with the other-linkage pilot oil hole, and the other end is communicated with the first cavity. The oil is controlled to enter the second cavity via the flow channel hole and the first cavity through the other linkage control, and the force opposite to the moving direction of the valve spool is provided for the reversing valve two-stage fluid control; the speed is not influenced during the single action, and the action in high speed can meet a target value during the composite action.
Description
Technical field
The present invention relates to a kind of limit stoper, particularly relate to a kind of change-over valve core two-stage hydraulic control structure.
Background technique
In engineering machinery, for digging machine, digging machine groundwork comprises swing arm, dipper, scraper bowl, bulldoze, walking and revolution etc., the speed of each action is determined by the valve core opening area that spool stroke is corresponding substantially, when multiple elemental motion composite move, assignment of traffic is distributed according to valve core opening area corresponding proportion corresponding under spool range, but a movement speed can lower than desired value sometimes, another one movement speed can higher than desired value, two exercise not harmonies, spool mechanical position limitation is normally adopted to the solution of this kind of problem, but need so repeatedly to install and remove adjustment, but also one action speed can be affected, often can not obtain satisfactory result.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the problem, and the invention provides a kind of change-over valve core two-stage hydraulic control structure and solves the problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of change-over valve core two-stage hydraulic control structure, comprise commutation valve body and be arranged on the changeover valve core in commutation valve body, described commutation valve body two ends are provided with the first end cap and the second end cap, described first end covers has this connection guide oilhole one, second end cap has this connection guide oilhole two, described commutation valve body has other connection guide oilhole near the side of the first end cap
Spring seat is provided with in the first described end cap, ring and spring, described spring seat and ring can slide in the first end cap, described spring seat one end is connected with changeover valve core, the other end stretches in ring and is connected with spring, described spring in the ring of described ring through being fixed on the inwall of the first end cap, groove on the outer round surface of described ring and the inwall of the first end cap forms the first cavity volume and the second cavity volume that seal, described ring has and sets up and intercept the groove that be communicated with of the first cavity volume with the second cavity volume, described first end covers and has runner hole, described one end, runner hole joins guide's oilhole with other and is communicated with, the other end is communicated with the first cavity volume,
Described groove is oval-shaped slot, and described groove has 4 and circumference is distributed on ring.
Described spring seat has near one end of changeover valve core and prevents spring seat from all stretching into flange collar one in ring, and the one end near spring seat on described ring has flange collar two.
The invention has the beneficial effects as follows, change-over valve core two-stage hydraulic control structure of the present invention, the pilot control oil adopting other to join is entered in the second cavity volume by runner hole, the first cavity volume, provides the power that one contrary with valve core movement direction, for change-over valve core two-stage hydraulic control structure.Adopt in this way both can bonding action hourly velocity unaffected, can ensure that again the higher action of composite move hourly velocity reaches desired value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the optimum embodiment of change-over valve core two-stage hydraulic control structure of the present invention,
Fig. 2 is the enlarged view at A place in Fig. 1,
Fig. 3 is the structural representation of ring.
In figure 1, commutation valve body, 1-K1, other connection guide oilhole, 2, changeover valve core, 3, the first end cap, 3-K1, runner hole, 3-K2, this connection guide oilhole one, 3-R1, the first cavity volume, 3-R2, the second cavity volume, the second end cap, 4-K1, this connection guide oilhole two, 5, spring seat, the acting surface on 5-A, spring seat, 6, ring, first acting surface on 6-A1, ring, the second acting surface on 6-A2, ring, 6-C, groove.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1-2, change-over valve core two-stage hydraulic control structure of the present invention, comprises commutation valve body (1) and is arranged on the changeover valve core 2 in commutation valve body 1.Commutation valve body 1 two ends are provided with on the first end cap 3 and the second end cap 4, first end cap 3 has this connection guide oilhole one 3-K2, and on the second end cap, 4 have this connection guide oilhole two 4-K1.Commutation valve body 1 has other connection guide oilhole 1-K1 near the side of the first end cap 3.
Spring seat 5, ring 6 and spring is provided with in first end cap 3, spring seat 5 and ring 6 can slide in the first end cap 3, spring seat 5 one end is connected with changeover valve core 2, the other end stretches in ring 6 and is connected with spring, described spring is through being fixed on the inwall of the first end cap 3 in the ring of described ring 6, and the groove on the outer round surface of ring 6 and the inwall of the first end cap 3 forms the first cavity volume 3-R1 and the second cavity volume 3-R2 that seal.
As shown in Figure 3, ring 6 has and sets up and intercept the groove 6-C that be communicated with of the first cavity volume 3-R1 with the second cavity volume 3-R2, groove 6-C is oval-shaped slot, groove 6-C has 4 and circumference is distributed on ring 6, first end cap 3 has runner hole 3-K1,3-K1 one end, runner hole joins guide's oilhole 1-K1 with other and is communicated with, and the other end is communicated with the first cavity volume 3-R1.
Spring seat 5 has near one end of changeover valve core 1 and prevents spring seat 5 from all stretching into flange collar 1 in ring 6, and the one end near spring seat 5 on ring 6 has flange collar 28.
Working principle: when this connection guide oilhole two 4-K1 passes into guide's hydraulic oil on the second end cap 4 of changeover valve core 2, changeover valve core 2 moves right together with spring seat 5, as the first acting surface 6-A1 on acting surface 5-A contact ring 6 on spring seat 5, band rotating ring 6 moves right together, at this moment 4 symmetrical shallow slot 6-C for introducing other connection guide oils on ring 6 can open, the first cavity volume 3-R1 that first end covers is communicated with the second cavity volume 3-R2, namely the first cavity volume 3-R1 that other connection guide oils are covered by first end can be introduced to the second cavity volume 3-R2, the pressure of other connection guide oils acts on the second acting surface 6-A2 on ring 6, ring 6 can be subject to other connection guide oils to ring 6 active force left, then final changeover valve core 2 can keep balance under this connection guide oil active force to the right and other join making a concerted effort of guide oils active force left, finally can settle out.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. a change-over valve core two-stage hydraulic control structure, it is characterized in that: the changeover valve core (2) comprising commutation valve body (1) and be arranged in commutation valve body (1), described commutation valve body (1) two ends are provided with the first end cap (3) and the second end cap (4), described the first end cap (3) has this connection guide oilhole one (3-K2), on second end cap, (4) have this connection guide oilhole two (4-K1), described commutation valve body (1) has other connection guide's oilhole (1-K1) near the side of the first end cap (3)
Spring seat (5) is provided with in described the first end cap (3), ring (6) and spring, described spring seat (5) and ring (6) can slide in the first end cap (3), described spring seat (5) one end is connected with changeover valve core (2), the other end stretches in ring (6) and is connected with spring, described spring is interior through being fixed on the inwall of the first end cap (3) from the ring of described ring (6), groove on the outer round surface of described ring (6) and the inwall of the first end cap (3) forms the first cavity volume (3-R1) and the second cavity volume (3-R2) that seal, described ring (6) has and sets up and intercept the groove (6-C) that be communicated with of the first cavity volume (3-R1) with the second cavity volume (3-R2), described the first end cap (3) has runner hole (3-K1), described runner hole (3-K1) one end joins guide's oilhole (1-K1) with other and is communicated with, the other end is communicated with the first cavity volume (3-R1).
2. change-over valve core two-stage hydraulic control structure according to claim 1, it is characterized in that: described groove (6-C) is oval-shaped slot, described groove (6-C) has 4 and circumference is distributed on ring (6).
3. change-over valve core two-stage hydraulic control structure according to claim 1, it is characterized in that: described spring seat (5) has near one end of changeover valve core (1) and prevents spring seat (5) from all stretching into flange collar one (7) in ring (6), and the upper one end near spring seat (5) of described ring (6) has flange collar two (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551011.9A CN104295772B (en) | 2014-10-16 | 2014-10-16 | Change-over valve core two-stage hydraulic control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551011.9A CN104295772B (en) | 2014-10-16 | 2014-10-16 | Change-over valve core two-stage hydraulic control structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295772A true CN104295772A (en) | 2015-01-21 |
| CN104295772B CN104295772B (en) | 2016-08-17 |
Family
ID=52315626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410551011.9A Active CN104295772B (en) | 2014-10-16 | 2014-10-16 | Change-over valve core two-stage hydraulic control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295772B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431338A (en) * | 2017-03-17 | 2019-11-08 | 纳博特斯克有限公司 | Slide valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673591A (en) * | 2004-03-25 | 2005-09-28 | 伊顿公司 | Solenoid operated spool valve with baffled dampening reservoir port and method of making same |
| JP2005282754A (en) * | 2004-03-30 | 2005-10-13 | Toyoda Mach Works Ltd | Solenoid valve |
| CN101893011A (en) * | 2010-07-30 | 2010-11-24 | 三一重工股份有限公司 | Hydraulic valve, hydraulic valve bank and control method thereof |
| CN102308131A (en) * | 2008-12-06 | 2012-01-04 | 米克罗斯塔奇公司 | Fluid flow control assembly |
| CN102341629A (en) * | 2009-03-30 | 2012-02-01 | 博格华纳公司 | Die cast sleeve with stability enhancement features occupying small package space |
| CN203757073U (en) * | 2014-04-17 | 2014-08-06 | 宁波市镇海华力液压机电有限公司 | Hydraulic control one-way valve |
| CN204187045U (en) * | 2014-10-16 | 2015-03-04 | 江苏恒立液压有限公司 | Change-over valve core two-stage hydraulic control structure |
-
2014
- 2014-10-16 CN CN201410551011.9A patent/CN104295772B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673591A (en) * | 2004-03-25 | 2005-09-28 | 伊顿公司 | Solenoid operated spool valve with baffled dampening reservoir port and method of making same |
| JP2005282754A (en) * | 2004-03-30 | 2005-10-13 | Toyoda Mach Works Ltd | Solenoid valve |
| CN102308131A (en) * | 2008-12-06 | 2012-01-04 | 米克罗斯塔奇公司 | Fluid flow control assembly |
| CN102341629A (en) * | 2009-03-30 | 2012-02-01 | 博格华纳公司 | Die cast sleeve with stability enhancement features occupying small package space |
| CN101893011A (en) * | 2010-07-30 | 2010-11-24 | 三一重工股份有限公司 | Hydraulic valve, hydraulic valve bank and control method thereof |
| CN203757073U (en) * | 2014-04-17 | 2014-08-06 | 宁波市镇海华力液压机电有限公司 | Hydraulic control one-way valve |
| CN204187045U (en) * | 2014-10-16 | 2015-03-04 | 江苏恒立液压有限公司 | Change-over valve core two-stage hydraulic control structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431338A (en) * | 2017-03-17 | 2019-11-08 | 纳博特斯克有限公司 | Slide valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295772B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104454738A (en) | Agriculture machine control valve | |
| CN101338829B (en) | Multipath hydraulic change-over valve | |
| CN202560499U (en) | Connecting rod piston shoes type wagon-flow allocation radial plunger pump | |
| CN201696385U (en) | Control valve device | |
| CN105379659A (en) | Full-submerged-type deep-water controllable lifting-type marine net cage culture device | |
| CN204187045U (en) | Change-over valve core two-stage hydraulic control structure | |
| CN103016435B (en) | Valve for preventing hydraulic motor from reversing | |
| CN104295772A (en) | Reversing valve spool two-stage fluid control structure | |
| CN104455548B (en) | A kind of fluid regeneration valve and method of work thereof | |
| CN106678381A (en) | Pressing type control valve | |
| CN104563519A (en) | Jib of concrete ejecting machine | |
| CN104776018A (en) | Dynamic-static pressure lubricating type flow distribution plate | |
| CN201284847Y (en) | Multipath hydraulic reverse valve | |
| CN107429851B (en) | Valve gear and fluid pressure control device | |
| CN205639132U (en) | A balance control valve for hydraulic traveling motor | |
| CN204226775U (en) | A kind of three-way control valve of high pressure occasion | |
| CN106460880B (en) | The fluid pressure control device of building machinery | |
| CN106104120A (en) | Valve gear | |
| CN105041751A (en) | Damping balance valve | |
| CN202176566U (en) | A hydraulic diverter valve | |
| CN207906426U (en) | A kind of gear box of tractor gearshift | |
| CN205298136U (en) | Go up leveling cylinder | |
| CN104265981A (en) | Proportional flow control valve | |
| CN103591076B (en) | A kind of quiet liquid displacement feedback quick on-off mechanism | |
| CN104290809B (en) | Hydraulic power steering gear assistance adjustment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213167 Wujin high tech Industrial Development Zone, Jiangsu Province, No. long hidden Road, No. 99 Applicant after: JIANGSU HENGLI HYDRAULIC CO., LTD. Address before: 213167 Wujin high tech Industrial Development Zone, Jiangsu Province, No. long hidden Road, No. 99 Applicant before: JIANGSU HENGLI HYDRAULIC CO., LTD. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |