CN105402188B - A kind of controllable high-speed rotation shunt reversing valve of servo - Google Patents
A kind of controllable high-speed rotation shunt reversing valve of servo Download PDFInfo
- Publication number
- CN105402188B CN105402188B CN201510997550.XA CN201510997550A CN105402188B CN 105402188 B CN105402188 B CN 105402188B CN 201510997550 A CN201510997550 A CN 201510997550A CN 105402188 B CN105402188 B CN 105402188B
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- oil
- valve
- valve element
- valve body
- hydraulic cylinder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
The present invention relates to a kind of controllable high-speed rotation shunt reversing valve of servo, including valve body, valve element and AC servo motor, oil inlet is provided with valve body, the hydraulic cylinder that oil return opening and eight are distributed in circumferential side wall is fed, rollback hydraulic fluid port, L-type valve element oil-feed path is provided with valve element, after valve core rotation, the oil-out of valve element oil-feed path can be connected with the hydraulic cylinder feeding on valve body, rollback hydraulic fluid port successively.The requirement that the present invention is accurately responded at a high speed for complex hydraulic system containing multi-hydraulic-cylinder, by adjusting rotating speed and the start-stop time of the AC servo motor being connected with valve element, realizes the accurate shunting of fixed point at regular time and quantity of high pressure liquid stream and commutates, response is rapid, precise control；Simultaneously, under the high-speed rotation of AC servo motor, the self-balancing dynamic sealing effect produced using the prefabricated multiple tracks annular seal groove in valve element periphery is sealed to whole valve, has both been eliminated the consumption of traditional rubber seal, turn avoid system failure caused by seal failure.
Description
Technical field
The invention belongs to the adjusting control valve field of Fluid Transmission and Control technique direction, and in particular to a kind of servo is controllable
High-speed rotation shunt reversing valve.
Background technology
For the complex hydraulic system being made up of multiple reciprocating hydraulic cylinders, multiple piston cylinders in hydraulic circuit
Fluid distribution and commutation are generally realized using multi-way reversal valve or rotary valve.Reversal valve refer to two or more hydraulic fluid port and
The directional control valve of two or more liquid forms, it using different power come the relative position of valve element in change over valve body so that
The sequential control and unloading for realize the break-make of hydraulic circuit, commutating and be attached thereto hydraulic actuator.Reversal valve is by promotion
The power difference of valve element can be divided into mechanically, hand, fluid pressure type, electric-liquid type and electromagnetic type etc. it is several, wherein solenoid directional control valve
Automaticity highest, most widely used.But the commutation response time of traditional solenoid directional control valve and commutating frequency are by electromagnetism skill
, there is a limiting value in the limitation of art, still much can not meet requirement under the application scenario for needing high-speed response, and due to
The quantity of solenoid directional control valve and the quantity of executive component are into corresponding relation in system circuit, and a considerable number of magnetic valve not only increases
The complexity and cost of system, while also greatly improve the fault rate of system.Rotary valve is also known as rotary valve, is a kind of allusion quotation
The directional control valve of type, mainly controls the opening and closing of runner, to switch runner by rotary part such as rotary spool
The flow direction of interior fluid.Existing rotary valve usually requires external rotary magnet or asynchronous machine to drive rotary spool to rotate, though
It is so simple in construction, compact, but controllability is poor, and seal easily fails under high speed reciprocating rotation, therefore its product is current only
Suitable for the application scenario of low discharge.
The content of the invention
It is an object of the invention to overcome the technical disadvantages that above-mentioned prior art is present to turn there is provided a kind of controllable high speed of servo
Dynamic shunt reversing valve, the reversal valve is driven the mode of the self-sealed valve element of high speed using servomotor, not only realizes flow
Distribute at regular time and quantity, while external executive component can be controlled to be moved in a designated order, rapid, commutation is responded with commutation
Frequency is high, can pinpoint accurate commutation at regular time and quantity, system architecture is simple, controllability is good, the low advantage of system failure rate.
In order to achieve the above object, the technical solution that the present invention is used is as follows：
A kind of controllable high-speed rotation shunt reversing valve of servo, including valve body, the valve element and actuatable valve that are set in valve body
The AC servo motor that core is turned round in body cavity, wherein,
Described valve body has the cylinder hollow valve pocket that an one end is solid-end, is provided with the center of the solid end face of valve pocket
One be circumscribed with main oil inlet pipe valve body oil inlet, nine hydraulic fluid ports, eight oil therein are being provided with the middle part of valve pocket on circumferential side wall
Mouth is distributed on same circumferential section, another to be circumscribed with hydraulic cylinder feeding, the hydraulic cylinder feeding of rollback oil pipe, rollback hydraulic fluid port
Individual hydraulic fluid port is being slightly away from hydraulic cylinder feeding, opened up at the position of rollback hydraulic fluid port, to be circumscribed with the valve body oil return opening of main oil return pipe；
Described valve element has cylindrical core, end face center of the valve element close to main oil inlet pipe one end be provided with one by
The L-type valve element oil-feed path that axial passage and radial passage are constituted, oil inlet and the valve body oil inlet phase of valve element oil-feed path
Logical, each hydraulic cylinder feeding, the central axis of rollback hydraulic fluid port are in together on the central axis and valve body of valve element oil-feed path oil-out
On one circumferential section, the annular oil-recovery tank of twice, first annular oil-recovery tank therein and valve element oil-feed are provided with valve element outer peripheral face
Oil-out and the hydraulic cylinder feeding of path, rollback hydraulic fluid port are on the same cross section of valve element, on the circumferential surface in 270 ° of annulars
In distribution, and the same longitudinal section of its symmetrical middle section and the oil-out end of valve element oil-feed path in valve element, the second annular is returned
The symmetrical middle section of oil groove is on same cross section with the central axis of valve body oil return opening, and twice annular oil-recovery tank is outside valve element
Connected on week by short groove together.
Further technical solution of the invention is also resided in：One is provided with close on the inwall of solid end face in body cavity
The annular table of undergauge is enclosed, the oil inlet end overhead of valve element is on step, and the cavity between valve element oil inlet end and step forms valve body
Main oil suction chamber.
Further technical solution of the invention is also resided in：Valve body oil return opening is connected by screw thread with main oil return pipe,
Eight uniform hydraulic cylinder feedings, the rollback hydraulic fluid ports opened in the middle part of valve pocket on circumferential side wall are respectively by screw thread liquid corresponding with one
Cylinder pressure feeding, rollback oil pipe are fixedly connected, and hydraulic cylinder feeding, the other end of rollback oil pipe are directly connected in reciprocating hydraulic cylinder
Feeding and rollback hydraulic fluid port.
Further technical solution of the invention is also resided in：Multiple tracks ring packing is disposed with the outer peripheral face of valve element
Spacing between groove, the sweeping rectangular cross-section of the annular seal groove, wide 4~6mm, deep 3~5mm, two adjacent annular seal grooves
For 4~6mm.
Further technical solution of the invention is also resided in：Valve element oil-feed path and hydraulic cylinder feeding, rollback hydraulic fluid port
Diameter is respectively less than the through-hole diameter of main oil inlet pipe and main oil return pipe.
Further technical solution of the invention is also resided in：Valve element is connected to be formed with AC servo motor by flat key
Assembly is installed in valve body valve pocket, and one end of AC servo motor is fixed on the end face of valve body hollow end by fastening bolt
On.
Compared with prior art, the controllable high-speed rotation shunt reversing valve of servo of the present invention can realize point of fluid
Stream and commutation, using the accurate control of the shunting reversing arrangement combination AC servo motor, the timing that high pressure liquid stream can be achieved is determined
The accurate shunting of amount fixed point and commutation, have the advantages that simple in construction, controllability is strong, commutation response is rapid, commutating frequency is high；Simultaneously
Because the valve element of apparatus of the present invention uses the multiple tracks annular seal groove of rational deployment, under the high-speed driving of AC servo motor,
High-pressure fluid is set to be produced from balanced dynamic sealing effect, the completely left out consumption of traditional rubber seal, and AC servo motor
High controllability also widened the application of apparatus of the present invention significantly.
Brief description of the drawings
Fig. 1 is that (Fig. 4 A-A is to section knot to cross-sectional view for the main view of a specific embodiment device of the invention
Structure schematic diagram).
Fig. 2 is the top view of embodiment illustrated in fig. 1 device.
Fig. 3 is the left view of embodiment illustrated in fig. 1 device.
Fig. 4 is the right view of embodiment illustrated in fig. 1 device.
Fig. 5 is Fig. 4 B-B cross-section structure diagram.
Fig. 6 is the axonometric drawing of illustrated embodiment of the present invention device.
Fig. 7 is the fundamental diagram of illustrated embodiment of the present invention device.
The title of each number designation is respectively in figure：The main oil return pipes of 1-, 2- valve bodies；3- annular seal grooves, 4- second
Annular oil-recovery tank, 5- AC servo motors, 6- fastening bolts, the deep groove ball bearings of 7- first, the feeding of 8- hydraulic cylinders, rollback
(wherein 8a, 8b, 8c, 8d, 8e, 8f, 8g, 8h are respectively to enter with opening eight uniform hydraulic cylinders on valve body circumferential side wall to oil pipe
Give, rollback hydraulic fluid port connection hydraulic cylinder feeding, rollback oil pipe), 9- valve element oil-feed paths, 10- valve elements, the deep-groove balls of 11- second
Bearing, the main oil suction chambers of 12-, 13- main oil inlet pipes, 14- valve body oil return openings, 15- flat keys, the feeding of 16- hydraulic cylinders, rollback oil
Mouthful, 17- valve body oil inlets；The first annular oil-recovery tanks of 18-；19-1 hydraulic cylinders；20-2 hydraulic cylinders；21-3 hydraulic pressure
Cylinder；22-4 hydraulic cylinders；23- fuel tanks；24- hydraulic cylinders feed oil circuit；25- hydraulic cylinder rollback oil circuits.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below with reference to accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
As shown in figs 1 to 6, the controllable high-speed rotation shunt reversing valve of servo of the present invention is main by valve body 2, suit
Constituted in the valve element 10 in valve body 2 and for driving valve element 10 to rotate AC servo motor 5.
The one end of valve body 2 is hollow, and the other end is solid, and valve body oil inlet 17, valve body oil-feed are provided with the center of its solid end face
Mouth 17 is attached with main oil inlet pipe 13 using screw thread.In the inner chamber of valve body 2 undergauge is enclosed close on the inwall of solid end face provided with one
Annular table, using this annular table formation valve body main oil suction chamber 12, while annular table can fix the second deep groove ball bearing 11
Outer ring.Nine hydraulic fluid ports are provided with portion's circumferential side wall in the body 2, wherein eight hydraulic fluid ports are distributed on same circumferential section, being can
Using screw thread correspondence be circumscribed with the feeding of hydraulic cylinder, rollback oil pipe 8 (8a, 8b, 8c, 8d, 8e shown in Fig. 2-Fig. 4, Fig. 6,
8f, 8g, 8h) hydraulic cylinder feeding, rollback hydraulic fluid port 16, another hydraulic fluid port be slightly away from hydraulic cylinder feeding, rollback hydraulic fluid port position
Place is opened up, and is the valve body oil return opening 14 that main oil return pipe 1 is circumscribed with using screw thread；Hydraulic cylinder feeding, the other end of rollback oil pipe 8
Feeding and rollback hydraulic fluid port that can be with reciprocating hydraulic cylinder be connected, and realize the reciprocating motion of hydraulic cylinder.
Valve element 10 is fixedly supported to the inner chamber of valve body 2 using the first deep groove ball bearing 7 and the two ends of the second deep groove ball bearing 11
In, valve element 10 is driven by AC servo motor 5 and overall revolution is carried out in the inner chamber of valve body 2.In order to realize high-pressure spray
The steady circulation of body, end face center of the valve element 10 close to the one end of main oil inlet pipe 13 is provided with one by axial passage and radial passage structure
Into L-type valve element oil-feed path 9, in order to realize the correct insertion of oil circuit, the central axis and valve of the oil-out of valve element oil-feed path 9
Each hydraulic cylinder feeding, the central axis of rollback hydraulic fluid port 16 are on same circumferential section on body 2.For reduction system failure rate, it is
In system exempt rubber seal use, accordingly, it would be desirable to system run at high speed it is lower be additionally produced from balanced dynamic sealing effectiveness, therefore
Multiple tracks annular seal groove 3 is disposed with the outer peripheral face of valve element 10, its sweeping rectangular cross-section section, wide 4~6mm, deep 3~
Spacing between 5mm, two adjacent annular seal grooves 3 is 4~6mm.Meanwhile, to realize single oil circuit oil-feed, remaining oil circuit is quick
Be additionally provided with the annular oil-recovery tank 4,18 of twice on oil return function, the outer peripheral face of valve element 10, first annular oil-recovery tank 18 therein with
The oil-out end of valve element oil-feed path 9 is on same cross section, on the circumferential surface in 270 ° of annular spreads (referring to Fig. 7), and
Symmetrical middle section and the oil-out end of valve element oil-feed path 9 are on the same longitudinal section of valve element 10, the second annular oil-recovery tank 4 with
Valve body oil return opening 14 is on same cross section, and twice annular oil-recovery tank is connected on the periphery of valve element 10 by short groove together.
The one end of valve element 10 away from main oil suction chamber 12 is connected using flat key 15 with AC servo motor 5, and is consolidated using four fastening bolts 6
On hollow end end face of the Dingan County loaded on valve body 2.
To make system oil-feed and oil return steady rapidly, the present invention in main oil inlet pipe 13, main oil return pipe 1 through-hole diameter it is big
In valve element in-line 9 and hydraulic cylinder feeding, the through-hole diameter of rollback oil pipe 8.
The controllable high-speed rotation shunt reversing valve of servo of the present invention can be applied to have four reciprocating hydraulic cylinders
Hydraulic system in, now by the reversal valve be applied to control four hydraulic cylinders carry out reciprocating in certain sequence exemplified by said
Bright, its course of work is as shown in Figure 7：
By the main oil inlet pipe 13 being connected on valve body oil inlet 17 (referring to Fig. 7 center spools) and hydraulic pump and it is related needed for
Hydraulic Elements are connected, and open hydraulic pump, under the driving of hydraulic pump, and fluid enters main oil suction chamber through fuel tank 23 through main oil inlet pipe 13
12；AC servo motor 5 is opened simultaneously, and under the drive of AC servo motor 5, valve element 10 works as valve by rotation is started counterclockwise
The oil-out of core oil-feed path 9 goes to (as shown in Figure 7 with hydraulic cylinder feeding, rollback oil pipe with an oil inlet on valve body 2
Oil inlet connected 8h) when communicating, AC servo motor 5 stops operating, and No. 4 hydraulic cylinders 22 feed chamber oil-feeds, and piston rod starts
Exert oneself, remaining seven oil inlet all carries out quick oil return by annular oil-recovery tank 4 through main oil return pipe 14 and secondary oil return pipe 1；Enter
After oil is finished, AC servo motor 5 is rotated further, when going to and another oil inlet (as shown in Figure 7 and liquid on valve body 2
Cylinder pressure feeding, rollback oil pipe 8g connected oil inlet) when communicating, AC servo motor 5 stops operating again, No. 4 hydraulic cylinders 22
Rollback chamber oil-feed, piston rod retracts.By that analogy, system can press No. 4 hydraulic cylinders of hydraulic cylinder 21 → 2 of hydraulic cylinder 22 → 3
The order of 20 → No. 1 hydraulic cylinders 19 carries out oil-feed and oil return to each hydraulic cylinder；Equally, as long as changing turning for AC servo motor 5
Speed and duration, the oil-feed and oil return of each hydraulic cylinder can also be carried out by specified hydraulic cylinder order, in addition, continuously working
In, the oil inlet quantity of each hydraulic cylinder and oil-feed order can be controlled at any time.
To sum up content, the controllable high-speed rotation shunt reversing valve of servo of the present invention can be directed to containing the complicated liquid of multi-hydraulic-cylinder
The requirement that pressure system high-speed is accurately responded, it is real by adjusting rotating speed and the start-stop time of the AC servo motor being connected with valve element
The fixed point at regular time and quantity of existing high pressure liquid stream accurately shunting and commutation, response is rapid, precise control；Meanwhile, in AC servo motor
High-speed rotation under, the self-balancing dynamic sealing effect produced using the prefabricated multiple tracks annular seal groove in valve element periphery is entered to whole valve
Row sealing, had both eliminated the consumption of traditional rubber seal, and turn avoid system failure caused by seal failure.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modification, equivalent substitution and improvements made within principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of controllable high-speed rotation shunt reversing valve of servo, including valve body (2), the valve element (10) that is set in valve body (2) and
The AC servo motor (5) that actuatable valve core (10) is turned round in valve body (2) valve pocket, it is characterised in that：
Described valve body (2) has the cylinder hollow valve pocket that an one end is solid-end, is provided with the center of the solid end face of valve pocket
One be circumscribed with main oil inlet pipe (13) valve body oil inlet (17), nine hydraulic fluid ports are being provided with the middle part of valve pocket on circumferential side wall, wherein
Eight hydraulic fluid ports are distributed on same circumferential section, to be circumscribed with hydraulic cylinder feeding, the hydraulic cylinder feeding of rollback oil pipe (8), retracting
Hydraulic fluid port (16), another hydraulic fluid port is being slightly away from hydraulic cylinder feeding, opened up at the position of rollback hydraulic fluid port, to be circumscribed with main oil return pipe
(1) valve body oil return opening (14)；
Described valve element (10) has a cylindrical core, is opened in end face center of the valve element (10) close to main oil inlet pipe (13) one end
Have a L-type valve element oil-feed path (9) being made up of axial passage and radial passage, the oil inlet of valve element oil-feed path (9) with
Valve body oil inlet (17) is communicated, and the central axis of valve element oil-feed path (9) oil-out feeds with each hydraulic cylinder on valve body (2), returned
The central axis for moving back hydraulic fluid port (16) is on same circumferential section, and the annular oil-recovery tank of twice is provided with valve element (10) outer peripheral face
The oil-out and hydraulic cylinder of (4,18), first annular oil-recovery tank (18) therein and valve element oil-feed path (9) are fed, rollback hydraulic fluid port
(16) on the same cross section in valve element (10), on the circumferential surface in 270 ° of annular spreads, and its symmetrical middle section and valve element
The oil-out end of oil-feed path (9) is on the same longitudinal section of valve element (10), the symmetrical middle section of the second annular oil-recovery tank (4)
It is in the central axis of valve body oil return opening (14) on same cross section, twice annular oil-recovery tank (4,18) is in valve element (10) periphery
It is upper to be connected by short groove together.
2. the controllable high-speed rotation shunt reversing valve of servo according to claim 1, it is characterised in that：In valve body (2) valve pocket
Close to annular table of the inwall provided with a circle undergauge of solid end face, the oil inlet end overhead of valve element (10) is in the step of annular table
On, the main oil suction chamber (12) of the cavity formation valve body between the step of valve element (10) oil inlet end and annular table.
3. the controllable high-speed rotation shunt reversing valve of servo according to claim 1, it is characterised in that：The valve body oil return opening
(14) be connected by screw thread with main oil return pipe (1), eight opened in the middle part of valve pocket on circumferential side wall it is uniform hydraulic cylinder feeding,
Rollback hydraulic fluid port (16) is respectively fixedly connected by screw thread hydraulic cylinder feeding corresponding with one, rollback oil pipe (8), hydraulic cylinder feeding,
The other end of rollback oil pipe (8) is directly connected in feeding and the rollback hydraulic fluid port of reciprocating hydraulic cylinder.
4. the controllable high-speed rotation shunt reversing valve of servo according to claim 1, it is characterised in that：In the outer of valve element (10)
Multiple tracks annular seal groove (3), the sweeping rectangular cross-section of the annular seal groove (3), wide 4~6mm, deep 3 are disposed with side face
Spacing between~5mm, two adjacent annular seal grooves (3) is 4~6mm.
5. the controllable high-speed rotation shunt reversing valve of servo according to claim 1, it is characterised in that：The valve element oil-feed is led to
Road (9) and hydraulic cylinder feeding, the diameter of rollback hydraulic fluid port (16) is respectively less than main oil inlet pipe (13) and the through hole of main oil return pipe (1) is straight
Footpath.
6. the controllable high-speed rotation shunt reversing valve of servo according to claim 1, it is characterised in that：The valve element (10) with
AC servo motor (5) forms assembly by flat key (15) connection and is installed in valve body (2) valve pocket, AC servo motor (5)
One end be fixed on by fastening bolt (6) on the end face of valve body (2) hollow end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997550.XA CN105402188B (en) | 2015-12-28 | 2015-12-28 | A kind of controllable high-speed rotation shunt reversing valve of servo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997550.XA CN105402188B (en) | 2015-12-28 | 2015-12-28 | A kind of controllable high-speed rotation shunt reversing valve of servo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402188A CN105402188A (en) | 2016-03-16 |
| CN105402188B true CN105402188B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510997550.XA Expired - Fee Related CN105402188B (en) | 2015-12-28 | 2015-12-28 | A kind of controllable high-speed rotation shunt reversing valve of servo |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971958A (en) * | 2016-06-12 | 2016-09-28 | 山东嘉岩石油科技开发有限公司 | Two-position four-way rotating reversing valve |
| CN107084168B (en) * | 2017-05-27 | 2019-06-07 | 江苏德生新材料锻造有限公司 | A kind of hydraulic reversing valve |
| CN107008840B (en) * | 2017-05-27 | 2018-11-30 | 江苏德生新材料锻造有限公司 | Hydraulic rapid forging press |
| CN107442491B (en) * | 2017-09-12 | 2024-02-23 | 苏州市吴通电子有限公司 | Contact type PCB cleaning device |
| CN108426064A (en) * | 2018-02-12 | 2018-08-21 | 芜湖众维教研仪器研发有限责任公司 | A kind of multi-way control valve |
| CN117367921B (en) * | 2023-12-08 | 2024-03-01 | 淄博市检验检测计量研究总院 | Proton membrane gas transmittance measuring device and measuring method |
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| CN105402188A (en) | 2016-03-16 |
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