CN202370924U - High frequency reversing valve - Google Patents
High frequency reversing valve Download PDFInfo
- Publication number
- CN202370924U CN202370924U CN2011205116222U CN201120511622U CN202370924U CN 202370924 U CN202370924 U CN 202370924U CN 2011205116222 U CN2011205116222 U CN 2011205116222U CN 201120511622 U CN201120511622 U CN 201120511622U CN 202370924 U CN202370924 U CN 202370924U
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- oil
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- spool
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Abstract
The utility model discloses a high frequency reversing valve, which comprises a valve body. An oil cavity, two first working oil ports, two second working oil ports, two pressure oil ports and two return oil ports are arranged in the valve body. The first working oil ports, the second working oil ports, the pressure oil ports and the oil return ports are arranged on the periphery of the oil cavity in circle and respectively communicated with the oil cavity. The arrangement sequence is as follows: the pressure oil port, the second working oil port, the oil return port, the first working oil port, the pressure oil port, the second working oil port, the return oil port and the first working oil port. A cross valve core is installed in the oil cavity, a reversing shaft is installed on the valve core, and the valve core is matched with the inner wall of the oil cavity to divide the oil cavity into four independent closed areas. A valve cover is installed at the front end of the valve body, a connector lateral plate is installed at the back end of the valve body, two ends of the reversing shaft are respectively matched with the connector lateral plate and the valve cover, and the two first working oil holes, the two second working oil holes, the two pressure oil holes and the two return oil holes are arranged on the connector lateral plate.
Description
Technical field
The utility model relates to a kind of selector valve, exactly is a kind of high frequency selector valve.
Background technique
Existing selector valve mostly is to rely on the oily flow path direction that move back and forth come switch pressure oil export and backflow fluid of reciprocating spool in valve body, thereby realizes the switching-over of hydraulic actuator motion.But the switch operation of the reciprocating reversing valve of reciprocating spool can't be realized the high frequency switching-over of real meaning.Its main cause is: spool is back and forth moving past in the journey, and each switching-over all need overcome the effect of inertia on the former moving direction, is difficult to realize per minute thousand times and even higher commutating frequency.On the one hand, the reciprocating spool moves one and comes and goes and can only accomplish first power to switching, realize the commutating frequency of per minute more than thousand times, must dispose complicated ground reciprocating device and could realize that high frequency commutates.On the other hand, long-time high frequency reciprocating reversing can make the reciprocation motion premature wear inefficacy at short notice of spool or valve body, has significantly shortened the working life of whole selector valve.Therefore the high frequency selector valve that does not all have actual application value so far.
The model utility content
The purpose of the utility model provides a kind of high frequency selector valve; The effect of inertia that it can solve in the to-and-fro motion of reciprocating spool is difficult to realize the high frequency switching-over; And be difficult to solve the problem that the energy consumption that effect of inertia brought is high and the selector valve life-span is short in the spool to-and-fro motion, can realize the high frequency switching-over of real meaning.
The utility model is realized through following technological scheme for realizing above-mentioned purpose: the high frequency selector valve, comprise valve body, and offer oil pocket, two first actuator ports, two second actuator ports, two pressure hydraulic fluid ports and two return openings in the valve body; First actuator port, second actuator port, pressure hydraulic fluid port, the rounded periphery that is distributed in oil pocket of return opening; And communicate with oil pocket respectively, it puts in order as follows: pressure hydraulic fluid port, second actuator port, return opening, first actuator port, pressure hydraulic fluid port, second actuator port, return opening, first actuator port; Criss-cross spool is installed in the oil pocket, reversing shaft is installed on the spool, spool cooperates with the inwall of oil pocket oil pocket is divided into four independently closed areas; The front end of valve body is installed valve gap; The rear end mounting interface side plate of valve body; The reversing shaft two ends cooperate with interface side plate and valve gap respectively; The interface side plate is provided with two first work oilholes, two second work oilhole, two pressure oilholes and two spill ports, and oilhole is corresponding one by one communicates for two first actuator ports and two first work, and two second actuator ports work with two second that oilhole is corresponding one by one to communicate; Two pressure hydraulic fluid ports communicate with two pressure oilholes are corresponding one by one, and two return openings and two spill ports correspondence one by one communicate.
In order further to realize the purpose of the utility model, can also adopt following technological scheme: offer first linked hole and the second work oil duct in the said interface side plate, first linked hole and two second work oilhole UNICOMs, the second work oil duct communicates with first linked hole.Offer the 3rd linked hole and the first work oil duct in the said interface side plate, the 3rd linked hole and two first work oilhole UNICOMs, the 3rd linked hole and the first work oil duct UNICOM.Offer first linked hole and total pressure oil duct in the said interface side plate, first linked hole and two pressure oilhole UNICOMs, first linked hole and total pressure oil duct UNICOM.Said reversing shaft and spool are offered keyway respectively, and reversing shaft is connected through key with spool.
The good effect of the utility model is: its spool realizes that with the mode of unidirectional rotation the high frequency switching-over of hydraulic oil is mobile; Need not change the moving direction and the motion state of spool therebetween; Can realize that high frequency switching-over can be saved again is used to overcome the energy that spool inertia changes its motion state, therefore, both can effectively cut down the consumption of energy; The premature wear that can prevent the reciprocation motion that spool causes because of frequent reciprocating reversing again lost efficacy; Can prolong the working life of spool and whole selector valve, thereby, can make the high frequency selector valve have real use value.The utility model also has compactness simple for structure, makes adult advantage cheap and easy to maintenance.
Description of drawings
Fig. 1 is the structural representation of the said high frequency selector valve of the utility model; Fig. 2 is the structural representation of said interface side plate; Fig. 3 is the F-F sectional structure schematic representation of Fig. 2; Fig. 4 is the E-E sectional structure schematic representation of Fig. 2; Fig. 5 is the D-D sectional structure schematic representation of Fig. 2; Fig. 6 is the C-C sectional structure schematic representation of Fig. 2; Fig. 7 is the structural representation of said valve body; Fig. 8 is the structural representation of said spool; Fig. 9 is the structural representation that valve body cooperates with spool.Figure 10 is the fundamental diagram of said high frequency selector valve.This figure by 0 to No. 8 totally nine width of cloth phase diagrams form, 0 to 8 has indicated a commutation cycle overall process in order.Among the figure first actuator port of selector valve and second actuator port respectively with oil hydraulic cylinder in two oil pocket UNICOMs up and down.Because actuator port respectively is two, therefore,, can two first actuator ports be connected by two threeways respectively with two second actuator ports for the convenient pipeline of simplifying connects, respectively two total working oil pipelines are connected with oil hydraulic cylinder again.
Reference character: 1 interface side plate, 2 valve bodies, 3 valve gaps, 4 bolts, 5 reversing shafts, 6 keys, 7 spools, 8 first linked holes, 9 first linked holes 10 the 3rd linked hole, 11 oil pockets, 12 total pressure oil ducts, 13 second work oil ducts, 14 first work oil duct A, the first actuator port B, the second actuator port P pressure hydraulic fluid port O return opening A1, the first work oilhole B1, the second work oilhole P1 pressure oilhole O1 spill port.
Embodiment
The described high frequency selector valve of the utility model comprises valve body 2, offers oil pocket 11, two first actuator port A, two second actuator port B, two pressure hydraulic fluid port P and two return opening O in the valve body 2.Like Fig. 7 and shown in Figure 9; The first actuator port A, the second actuator port B, pressure hydraulic fluid port P, the rounded periphery that is distributed in oil pocket 11 of return opening O; And communicate with oil pocket 11 respectively, it puts in order as follows: pressure hydraulic fluid port P, the second actuator port B, return opening O, the first actuator port A, pressure hydraulic fluid port P, the second actuator port B, return opening O, the first actuator port A.Like Fig. 8 and shown in Figure 9, criss-cross spool 7 is installed in the oil pocket 11.As shown in Figure 1, reversing shaft 5 is installed on the spool 7.As shown in Figure 9, spool 7 cooperates with the inwall of oil pocket 11 oil pocket 11 is divided into four independently closed areas.As shown in Figure 1, the front end of valve body 2 is installed valve gap 3, the rear end mounting interface side plate 1 of valve body 2, and reversing shaft 5 two ends cooperate with interface side plate 1 and valve gap 3 respectively.One end of reversing shaft 5 can be gone out to pass by valve gap 3 or interface side plate 1, so that be connected with drive unit, makes spool 7 obtain rotating power.As shown in the figure; Interface side plate 1 is provided with two first work oilhole A1, two second work oilhole B1, two pressure oilhole P1 and two spill port O1; Two first actuator port A and two first corresponding one by one the communicating of work oilhole A1; Two second actuator port B and two second corresponding one by one the communicating of work oilhole B1, two pressure hydraulic fluid port P and two corresponding one by one communicating of pressure oilhole P1, two return opening O and two spill port O1 correspondence one by one communicate.Interface side plate 1, valve body 2 and valve gap 3 can be made into one, but the processing technology difficulty is excessive, and processing cost is higher, therefore, still interface side plate 1, valve body 2 and valve gap 3 are made respectively usually, and be as shown in Figure 1 then, the three connected fixing with several bolts 4.
The constant flow direction of hydraulic oil is that through the pressure hydraulic fluid port P of valve inflow, again through hydraulic pressure installation such as oil hydraulic cylinders, the return opening O by valve flows back to fuel tank at last by fuel tank in elder generation.
In entire work process, spool 7 clockwise turns to example all the time, and the working principle of setting forth the high frequency selector valve in conjunction with Figure 10 is following:
Shown in No. 0 figure, off-position was put during selector valve was in, and all return opening O and pressure hydraulic fluid port P all are closed, and this moment, the piston position of oil hydraulic cylinder was locked.
Shown in No. 1 figure, at the beginning of spool 7 rotated, pressure hydraulic fluid port P opened to the first actuator port A side; Return opening O opens to the second actuator port B side; Hydraulic oil moves on the piston according to the lower oil cavitie through pressure hydraulic fluid port P and first actuator port A inflow oil hydraulic cylinder, and the upper oil cavitie that makes oil hydraulic cylinder is to the second actuator port B oil extraction; Oil flows back to fuel tank through the second actuator port B and return opening O, and the piston of oil hydraulic cylinder quickens up in the process;
Shown in No. 2 figure, after spool 7 is rotated further, make pressure hydraulic fluid port P and the equal complete opening of return opening O, the flow path of hydraulic oil is constant, and it is maximum that flow velocity reaches, and at this moment, the piston stroking upward speed of oil hydraulic cylinder is maximum;
Shown in No. 3 figure, the spool 7 beginning enclosure portion first actuator port A and the second actuator port B, the flow path of hydraulic oil is constant, and flow velocity reduces gradually, and at this moment, the piston of oil hydraulic cylinder slows down up;
Shown in No. 4 figure, spool 7 is the first actuator port A and the second actuator port B complete closed, and each is self-enclosed, not connected for pressure hydraulic fluid port P, the first actuator port A, the second actuator port B, return opening O, and this moment, piston stopped to move;
Shown in No. 5 figure, spool 7 is rotated further, and pressure hydraulic fluid port P opens to the second actuator port B side; Return opening O opens to the first actuator port A side; Hydraulic oil is according to the upper oil cavitie through pressure hydraulic fluid port P and second actuator port B inflow oil hydraulic cylinder, and piston moves down, and the lower oil cavitie that makes oil hydraulic cylinder is to the first actuator port A oil extraction; Oil flows back to fuel tank through the first actuator port A and return opening O, and the piston of oil hydraulic cylinder quickens descending in the process;
Shown in No. 6 figure, after spool 7 is rotated further, make pressure hydraulic fluid port P and the equal complete opening of return opening O, the flow path of hydraulic oil is constant, and it is maximum that flow velocity reaches, and at this moment, the descent of piston speed of oil hydraulic cylinder is maximum;
Shown in No. 7 figure, the spool 7 beginning enclosure portion first actuator port A and the second actuator port B, the flow path of hydraulic oil is constant, and flow velocity reduces gradually, and at this moment, the piston of oil hydraulic cylinder slows down descending;
Shown in No. 8 figure, spool 7 is pressure hydraulic fluid port P and return opening O complete closed, and each is self-enclosed for pressure hydraulic fluid port P, the first actuator port A, the second actuator port B and return opening O, and piston stops to move.
Press the said process circulation and realize the high frequency switching-over.
In said process, in four closed areas of oil pocket 11, be that relative two regional work states are identical all the time; I.e. oil extraction simultaneously or oil-feed simultaneously; Therefore adjacent two regional work opposite states, make spool 7 be in the environment of an outer equilibrium of forces and work; Can prevent effectively that the relative reversing shafts 5 of spool 7 from doing to radially wobble, thus can be further along working life of long spool 7 and whole selector valve.
Spool 7 whenever rotates a circle and can realize four switching-overs, and the rotatable at least thousands of commentaries on classics of spool 7 per minutes, and therefore, commutating frequency is high, and the hydraulic pressure installation that can satisfy all high frequencies actions such as high frequency hydraulic vibration driver for example uses.Spool 7 can be connected with motor or oil hydraulic motor and gains impetus, and installs and uses easy.
Extremely shown in Figure 6 like Fig. 1 and Fig. 3; Offer first linked hole 9 and the second work oil duct 13 in the said interface side plate 1; Two second work oilhole B1 are blind holes, first linked hole 9 and two second work oilhole B1 UNICOMs, and the second work oil duct 13 communicates with first linked hole 9.Offer the 3rd linked hole 10 and first work oil duct 14, the three linked holes 10 and two first work oilhole A1 UNICOMs in the said interface side plate 1, two first work oilhole A1 are blind holes, the 3rd linked hole 10 and the first work oil duct, 14 UNICOMs.Offer first linked hole 8 and total pressure oil duct 12, the first linked holes 8 and two pressure oilhole P1 UNICOMs in the said interface side plate 1, two pressure oilhole P1 are blind holes, first linked hole 8 and total pressure oil duct 12 UNICOMs.The paired first work oilhole A1, the second work oilhole B1 and pressure oilhole P1 are converged in total pressure oil duct 12, the second work oil duct 13 and the 14 alternative threeways of the first work oil duct, connect so that simplify pipeline.
Fixing, as shown in Figure 1 for ease of reversing shaft 5 is connected with key 6, said reversing shaft 5 is offered keyway respectively with spool 7, and reversing shaft 5 is connected through key 6 with spool 7.
The utility model not part of detailed description is known technology.
Claims (5)
1. the high frequency selector valve is characterized in that: comprise valve body (2), offer oil pocket (11), two first actuator ports (A), two second actuator ports (B), two pressure hydraulic fluid ports (P) and two return openings (O) in the valve body (2); First actuator port (A), second actuator port (B), pressure hydraulic fluid port (P), the rounded periphery that is distributed in oil pocket (11) of return opening (O); And communicate with oil pocket (11) respectively, it puts in order as follows: pressure hydraulic fluid port (P), second actuator port (B), return opening (O), first actuator port (A), pressure hydraulic fluid port (P), second actuator port (B), return opening (O), first actuator port (A); Criss-cross spool (7) is installed in the oil pocket (11), and spool (7) is gone up reversing shaft (5) is installed, and spool (7) cooperates with the inwall of oil pocket (11) oil pocket (11) is divided into four independently closed areas; The front end of valve body (2) is installed valve gap (3); The rear end mounting interface side plate (1) of valve body (2); Reversing shaft (5) two ends cooperate with interface side plate (1) and valve gap (3) respectively; Interface side plate (1) is provided with two first work oilholes (A1), two second work oilhole (B1), two pressure oilholes (P1) and two spill ports (O1); Two first actuator ports (A) and corresponding one by one the communicating of two first work oilholes (A1); Corresponding one by one the communicating of two second actuator ports (B) and two second work oilhole (B1), two pressure hydraulic fluid ports (P) are with two pressure oilhole (P1) is corresponding one by one communicates, and two return openings (O) and two spill ports (O1) correspondence one by one communicate.
2. high frequency selector valve according to claim 1; It is characterized in that: offer first linked hole (9) and the second work oil duct (13) in the said interface side plate (1); First linked hole (9) and two second work oilhole (B1) UNICOMs, the second work oil duct (13) communicates with first linked hole (9).
3. high frequency selector valve according to claim 1; It is characterized in that: offer the 3rd linked hole (10) and the first work oil duct (14) in the said interface side plate (1); The 3rd linked hole (10) and two first work oilhole (A1) UNICOMs, the 3rd linked hole (10) and first work oil duct (14) UNICOM.
4. high frequency selector valve according to claim 1; It is characterized in that: offer first linked hole (8) and total pressure oil duct (12) in the said interface side plate (1); First linked hole (8) and two pressure oilhole (P1) UNICOMs, first linked hole (8) and total pressure oil duct (12) UNICOM.
5. high frequency selector valve according to claim 1 is characterized in that: said reversing shaft (5) and spool (7) are offered keyway respectively, and reversing shaft (5) is connected through key (6) with spool (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116222U CN202370924U (en) | 2011-12-09 | 2011-12-09 | High frequency reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116222U CN202370924U (en) | 2011-12-09 | 2011-12-09 | High frequency reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370924U true CN202370924U (en) | 2012-08-08 |
Family
ID=46594628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205116222U Expired - Fee Related CN202370924U (en) | 2011-12-09 | 2011-12-09 | High frequency reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849158A (en) * | 2015-05-29 | 2015-08-19 | 四川德翔科创仪器有限公司 | Electro-hydraulic type high-frequency fatigue testing machine and design method thereof |
| CN111870507A (en) * | 2020-08-04 | 2020-11-03 | 董宏林 | Intelligent clothing system deeply breathes |
-
2011
- 2011-12-09 CN CN2011205116222U patent/CN202370924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849158A (en) * | 2015-05-29 | 2015-08-19 | 四川德翔科创仪器有限公司 | Electro-hydraulic type high-frequency fatigue testing machine and design method thereof |
| CN104849158B (en) * | 2015-05-29 | 2017-09-29 | 四川德翔科创仪器有限公司 | A kind of electric-liquid type HF fatigue testing machine and its design method |
| CN111870507A (en) * | 2020-08-04 | 2020-11-03 | 董宏林 | Intelligent clothing system deeply breathes |
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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 |
Granted publication date: 20120808 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |