CN105221505B - A kind of double spool double freedom rotary type four-way reversal valve with jackshaft - Google Patents
A kind of double spool double freedom rotary type four-way reversal valve with jackshaft Download PDFInfo
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- CN105221505B CN105221505B CN201510576256.1A CN201510576256A CN105221505B CN 105221505 B CN105221505 B CN 105221505B CN 201510576256 A CN201510576256 A CN 201510576256A CN 105221505 B CN105221505 B CN 105221505B
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Abstract
The invention discloses a kind of double spool double freedom rotary type four-way reversal valve with jackshaft, including left end cap, right end cap, valve body and the left valve element being placed in valve body, right valve element and jackshaft.Wherein, left valve element is provided with annular groove with right spool face, jackshaft left end stretches into left valve element endoporus, and right-hand member is stretched into right end cap by right valve core through hole, is provided with A hydraulic fluid ports corresponding with annular groove, B hydraulic fluid ports, P oil inlets and T oil return openings on valve body wall successively from left to right.Left valve element left end runs through and stretches out left end cap, is connected with the main shaft of motor, and motor drives left Spool rotating, so as to control the working frequency of executing agency；The axial movement of right valve element is controlled by a three-way diverter valve, the amplitude displacement of executing agency is controlled with this.Symmetrical configuration of the present invention, spool valve body uniform force, Stability Analysis of Structures, with double spool double freedom, can be independently controlled, it is adaptable to electrohydraulic excitation field to the working frequency of executing agency and amplitude displacement.
Description
Technical field
The present invention relates to hydraulicdirectional control valve field, the reciprocating multi-parameter of executing agency's high speed is mainly used in（Work
Frequency and displacement amplitude）Independent control field.
Background technology
The major way of concrete block forming is press-formed for vibration, and its forming principle is to be acted in vibration and pressure
Under, make the various particles in moulding box with respect to the changing of the relative positions to reach closely knit effect.Vibration is important in concrete block forming technique
Link, the Forming Quality and production efficiency of concrete segment depended greatly on and shaken on Concrete block forming machine
The performance of dynamic equipment, so shake table is the part of most critical in whole block machine, vibrator as shake table key
One of element, the breakthrough important in inhibiting of its core technology.
By the difference of excitation pattern, vibrator be divided into mechanically, the pattern, mechanical excitation structure such as electrodynamic type, electric-liquid type
Simply, low cost, but upper limiting frequency is low, and wave distortion is serious, and electrodynamic type exciting working band is wider, and control mode is simple, ripple
The shape distortion factor is small, but is difficult to obtain big exciting force, and high cost, wherein electro-hydraulic vibration exciter are because exciting force is big, structure is firm, with nothing
The advantages of level amplitude modulation, frequency modulation, good easy to operate and controllability, using more and more extensive.
Conventional electro-hydraulic vibration exciter mainly uses two kinds of forms at present：（1）Produced using the break-make of servo valve control fluid
Raw vibration, i.e., in electrohydraulic servo valve control signal input inputted vibration pumping signal, valve element is reciprocating, valve port size with
That is cyclically-varying, control hydraulic actuator is reciprocating, realizes vibration.Patent of invention 201110127418.5 is disclosed
A kind of " large-flow high-frequency based on parallel connection of servo valves rings electro-hydraulic vibrating device and control method ", the device is by taking to servo
The command signal of valve carries out the synchronisation control means that phase shift and luffing are combined, and solves the asynchronous problem of valve core movement, should
Flow needed for device is provided simultaneously by multiple valves are in parallel, and the traffic requirement to each servo valve is little, but due to being subject to
The limitation of servo valve work structuring and Frequency Response, working frequency is not easily adjustable, and response speed is slow, and commutating frequency is not high, and
The amount of opening of valve is smaller, and its pressure loss is also big, and uninterrupted is restricted, and electro-hydraulic vibration exciter is difficult to high-frequency excitation, phase
Hope that vibrational waveform is difficult to realize, and cost and accuracy of manufacture requirement are higher, processing and maintenance difficulty are than larger, antifouling property
Also it is poor.（2）These shortcomings based on servo valve, more and more electro-hydraulic vibration exciter is controlled using rotating type change valve now
So as to produce vibration, rotating type change valve refers to the rotation by valve element realizes oil circuit break-make and commutation to the break-make of fluid
Valve.Such as referenced patent US6499507, the valve core constitutes a series of import and outlet with the opening on valve pocket, with valve
The rotation of core, the groove that cuts of valve element coordinates the break-make for realizing entering hydraulic cylinder both sides fluid with the opening of valve pocket, and the valve can be avoided
The resonance and self-excited vibration of rotary valve, reduce noise, while switch operation is easy, but the valve fit dimension is more, valve element and valve
Set coordinates requirement high, improves processing and the installation difficulty of rotary valve.Referenced patent 201310021709.5 discloses a kind of " double electricity
The rotary directional throttle valve of double spool that machine drives ", the clack valve core of valve two directly drives by motor and rotates, it is to avoid not
Know the rotating Vortex of dead band and null offset using two clack valve cores, easily constitute position feedback, improve control accuracy, but the valve
Device without regulation axial movement and valve core chamber thrust between two clack valve cores, sealing is poor, and the leakage of valve core chamber is larger, can only
The working frequency of executing agency is controlled by Spool rotating, it is impossible to which working frequency and amplitude to executing agency carry out independent control
System, two motors of valve needs are while drive two clack valve core rotating Vortexes, control is complex, and regulation difficulty is higher in addition.Ginseng
Examine patent 201310021948.0 and disclose " a kind of internal control type double freedom Spool rotating formula four-way reversing valve ", the valve has valve element
Rotation and valve element move axially two frees degree, and stepper motor drives Spool rotating, and active hydraulic coupling is comprehensive with the pre- force adjustment of spring
Cooperation is moved axially with control valve element, but the valve is this controls what valve element was moved axially by active hydraulic coupling and the pre- force adjustment of spring
Mode adjusts more difficult and unstable, and increased the complexity of the valve arrangement, using the shoulder two in valve element
The structure of side recessing, makes its flow smaller, and due to the asymmetry of hydraulic pressure runner, axial hydraulic power is also larger.
The content of the invention
It is real it is an object of the invention to provide a kind of double spool double freedom rotary type four-way reversal valve with jackshaft
Now the working frequency and amplitude to electro-hydraulic vibration exciter are independently controlled, and overcome that existing hydraulicdirectional control valve flow is small, axial liquid
Power is big, commutating frequency is low and is difficult the defect of regulation.
The present invention provide technical scheme be：A kind of double spool double freedom rotary type four-way commutation with jackshaft
Valve, including a middle part axially through valve body, is disposed with from left to right through a motor-driven left valve in the valve body
The jackshaft of core and left valve core rotation connection and one be slideably positioned in valve body and middle part axially through right valve element,
The left end of the jackshaft is rotated with the right-hand member of the left valve element and is connected, and the right-hand member of the jackshaft is horizontally through right valve element and prolongs
Extend and be fixed in the right end cap of valve end, described valve body the other end is fixed with a left end cap；The left valve element and right valve
The outer surface of core is interval with two annular grooves from left to right, is circumferentially uniformly laid with n on the annular groove respectively
The first flow of radial direction, the left valve element is also circumferentially spaced to offer 2n second flow channel from left to right, the left valve element
Respective first flow is connected with a wherein second flow channel respectively in two annular grooves；The jackshaft is circumferentially at equal intervals
It is provided with 2n first through hole from left to right, the jackshaft outer surface is interval with two second leading to radially from left to right
Hole, respective first flow is respectively through wherein one second through hole and a wherein first through hole in two annular grooves of the right valve element
It is connected, n is positive integer；The right valve element two ends end face corresponding with valve body forms the first control chamber and the second control chamber, leads to
A three-way diverter valve is crossed through controlling the first control chamber and the second control chamber to realize the axial movement of right valve element；The left valve element annular
The A hydraulic fluid ports and B hydraulic fluid ports of radial direction are provided with valve body wall where groove successively from left to right, where the right valve element annular groove
It is provided with the P oil inlets and T oil return openings of radial direction on valve body wall successively from left to right；The left end of the left valve element closely connects with left end cap
Touch, right-hand member and the right end cap of the jackshaft are in close contact.
Further, the valve body is located at first control chamber and the second control chamber and is provided with from bottom to top respectively and institute
Three-way diverter valve connected the first hydraulic fluid port and the second hydraulic fluid port are stated, first hydraulic fluid port and the second hydraulic fluid port are controlled with described first respectively
Chamber is connected with the second control chamber.
Further, angle is between two adjacent second flow channels（360/2n）°, angle between two adjacent first through hole
For（360/2n）°.
Further, the left end of the left valve element has extended laterally a projecting shaft, and the projecting shaft passes through the left end cap
And be connected with the main shaft of the motor.
Further, the left valve element right-hand member is provided with an endoporus, and the jackshaft left side is circumferentially spaced to be provided with some
Individual boss, the boss stretches into the endoporus and forms several circumferentially spaced seal areas with the left valve element inner face
Domain, and the second flow channel extended at the endoporus, and the first through hole is extended at boss.
Further, the boss forms 2n sealing area in fan-shaped and relative with left valve element inner face；Described
One through hole is located between two adjacent sealing areas.
Further, the annular groove on the left valve element is respectively annular groove a and annular groove b, the right valve element
Annular groove be respectively annular groove p and annular groove t, the annular groove a, annular groove b, annular groove p and annular
Groove t is each connected with A hydraulic fluid ports A, B hydraulic fluid port, P oil inlets and T oil return openings.
Further, the oil inlet M of radial direction is provided with the right end cap from top to bottom, is provided with from left to right and the centre
The axially extending bore f of axle right-hand member connection, the axially extending bore f is connected with the lower end of the oil inlet M, from up on the valve body
Under be provided with the horizontal runner e1 and horizontal on right end cap that drain tap a N, the drain tap N is located on valve body through
Runner e2 is connected with the upper end of the oil inlet M；The runner e1 and runner e2 is on same axis and is interconnected.
Further, interval is arranged with Combined sealing between the left valve element right-hand member endoporus and jackshaft
Circle, interval is arranged with O-ring seal between the jackshaft and right valve element.
Compared with prior art, the beneficial effects of the invention are as follows：
1）The present invention provide reversal valve using with jackshaft bivalve cored structure, by switching runner between connection close
System makes it commutate, and compared with the structure of traditional valve element both sides recessing, the simple structure is symmetrical, spool valve body uniform force,
Axial hydraulic power is smaller, Stability Analysis of Structures, and power is big, and flow is big, and workload-adaptability is strong.
2）Two frees degree are moved axially with Spool rotating and valve element, can be to the working frequency of executing agency and amplitude
Displacement is independently controlled.The left Spool rotating of motor drive, and then the working frequency of executing agency is controlled, by a threeway
Reversal valve controls the axial movement of right valve element, and then controls the amplitude displacement of executing agency, and this kind of control mode is simple and convenient,
Relatively stable reliability, can be readily adjusted vibrator excited frequency and amplitude, meet the forming requirements of different building blocks.
3）Compared with conventional rotary reversal valve, the leakage of the valve is substantially reduced.Right end cap shaft orientation flowing channel can be adjusted effectively
Thrust between jackshaft boss and corresponding left valve element inner face, reduces the oil liquid leakage between end face, left valve element and jackshaft it
Between be additionally provided with Combined sealing, when further reducing left Spool rotating, leakage between the two, jackshaft and right valve element
Between be provided with O-ring seal, it is ensured that the axial movement of right valve element or it is static when leakage between the two it is less.
Brief description of the drawings
Fig. 1 is based on excitation system rough schematic view of the invention；
Fig. 2 is internal structure schematic diagram of the invention；
Fig. 3 is the three dimensional structure diagram that valve body is cut open along its center longitudinal section；
Fig. 4 is the three dimensional structure diagram of left valve element；
Fig. 5 is the three dimensional structure diagram of jackshaft；
Fig. 6 is the three dimensional structure diagram of right valve element；
Fig. 7 is that four-way reversing valve of the present invention is in P → A working conditions（That is A working conditions）When internal structure schematic diagram,
Wherein valve body and end cap portion are center longitudinal section sectional views；
Fig. 8 is that four-way reversing valve of the present invention is in P → B working conditions（That is B working conditions）When internal structure schematic diagram,
Wherein valve body and end cap portion are center longitudinal section sectional views；
In figure, 1-valve body；2-left valve element；3-jackshaft；4-right valve element；5-left end cap；6-right end cap；7-left
Valve element external part；8-the first control chamber；9-the second control chamber；10-annular groove a；11-annular groove b；12-annular is recessed
Groove p；13-annular groove t；14-first flow b1；15-second flow channel b2；16-first flow a1；17-second flow channel a2；
18-first through hole t1；19-the second through hole t2；20-first through hole p1；21-the second through hole p2；22-first flow t3；23—
First flow p3；24-oil inlet M；25-runner e1；26-runner e2；27-drain tap N；28-axially extending bore f；29-A oil
Mouthful；30-B hydraulic fluid ports；31-P oil inlets；32-T oil return openings；33-the first hydraulic fluid port；34-the second hydraulic fluid port；35-O-ring seal；
36-Combined sealing；37-boss；38-three-way diverter valve；39-exciting cylinder；40-motor；41-pump；
42-filter；43-overflow valve.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Fig. 1 to Fig. 8 the embodiment of the present invention provides a kind of double spool double freedom rotary four with jackshaft 3
Logical reversal valve, including a middle part axially through valve body 1, is disposed with from left to right in the valve body 1 and is driven through a motor
Dynamic left valve element 2 and the left valve element 2 rotate the right valve element 4 that the jackshaft 3 and of connection is slideably positioned in valve body 1, described
The left end of jackshaft 3 is rotated with the right-hand member of the left valve element 2 and is connected, and the right-hand member of the jackshaft 3 leads to through the axial direction of right valve element 4
Hole and extending to is fixed in the right end cap 6 of the end of valve body 1, and the other end of the valve body 1 is fixed with a left end cap 5；Institute
State left valve element 2 and right valve element 4 outer surface it is axially spaced be provided with two annular grooves, respectively along the week side of boss on the annular groove
Uniform to be laid with the n first flow of radial direction, the left valve element 2 is also circumferentially spaced to offer 2n second from left to right
Road, respective first flow is connected with a wherein second flow channel respectively in two annular grooves on the left valve element 2；In described
Countershaft 3 is circumferentially spaced to be provided with 2n first through hole from left to right, and the outer surface of the jackshaft 3 is interval with two from left to right
Individual the second through hole radially, on the right valve element 4 in two annular grooves respective first flow respectively through wherein one second
Through hole is connected with a wherein first through hole, and n is positive integer；The two ends of right valve element 4 form first with the corresponding end face of valve body 1
The control chamber 9 of control chamber 8 and second, by a three-way diverter valve 38 through controlling the first control chamber 8 and the second control chamber 9 to realize right valve
The axial movement of core 4；Be provided with successively from left to right on the wall of valve body 1 where the annular groove of left valve element 2 radial direction A hydraulic fluid ports and
B hydraulic fluid ports, are provided with P oil inlets and the T oil returns of radial direction successively from left to right on the wall of valve body 1 where the annular groove of right valve element 4
Mouthful；The left end of the left valve element 2 is in close contact with left end cap 5, and right-hand member and the right end cap 6 of the jackshaft 3 are in close contact.
In the present embodiment, the valve body 1 is located at the control chamber 9 of first control chamber 8 and second respectively from bottom to top
It is provided with the first hydraulic fluid port 33 and the second hydraulic fluid port 34 being connected with the three-way diverter valve 38, the hydraulic fluid port 34 of first hydraulic fluid port 33 and second
It is connected with the control chamber 9 of first control chamber 8 and second respectively.
In the present embodiment, angle is between adjacent second flow channel（360/2n）°, angle between adjacent first through hole
For（360/2n）°.
In the present embodiment, the left end of the left valve element 2 has extended laterally a projecting shaft, and the projecting shaft passes through the left side
End cap 5 and it is connected with the main shaft of the motor.
In the present embodiment, the right-hand member of left valve element 2 is provided with an endoporus, and the left side of the jackshaft 3 is circumferentially spaced to be set
There are several boss 37, between the boss 37 stretches into the endoporus and forms several circumferentially with the inner face of left valve element 2
Every sealing area, and the second flow channel extended at the endoporus, and the first through hole is extended at boss 37.
In the present embodiment, the boss 37 forms 2n sealing area in fan-shaped and relative with left valve element 2 inner face；
The first through hole is located between two adjacent sealing areas.
In the present embodiment, the annular groove on the left valve element 2 is respectively annular groove a10 and annular groove b11, institute
State the annular groove respectively annular groove p12 and annular groove t13 of right valve element 4, the annular groove a10, annular groove
B11, annular groove p12 and annular groove t13 are each connected with A hydraulic fluid ports A, B hydraulic fluid port, P oil inlets and T oil return openings.
In the present embodiment, be provided with from top to bottom on the right end cap 6 radial direction oil inlet M24, be provided with from left to right with
The axially extending bore f28 of the right-hand member of the jackshaft 3 connection, the axially extending bore f28 are connected with the lower end of the oil inlet M24,
The horizontal runner that drain tap a N27, the drain tap N27 is located on valve body 1 through one is provided with the valve body 1 from top to bottom
E125 and the horizontal runner e226 on right end cap 6 are connected with the upper end of the oil inlet M24；The runner e125 and
Runner e226 is on same axis and is interconnected.
In the present embodiment, interval is arranged with tooth form sliding ring type and combines between the right-hand member endoporus of the left valve element 2 and jackshaft 3
Sealing ring 36, interval is arranged with O-ring seal 35 between the jackshaft 3 and right valve element 4.
As shown in figure 1, the hydraulic oil from pump 41 flows into P oil inlets by filter 43, overflow valve 42 is to vibrator system
System carries out safeguard protection.The first control chamber 8 and the second control chamber 9 is controlled to control right valve element 4 by the three-way diverter valve 38
Axial displacement, so as to control the amplitude displacement of exciting cylinder 39.A oil-outs positioned at left side are connected with the epicoele of exciting cylinder 39, B
Oil-out connects cavity of resorption connection with the epicoele of exciting cylinder 39.Left valve element 2 is connected with motor 40, drives left valve element 22 to revolve by motor 40
Turn so as to control the excited frequency of exciting cylinder 39.When left valve element 2 is rotated to position shown in Fig. 7, it is rotary that the present invention is provided
Four-way reversing valve is in left position（That is A working conditions）, now exciting cylinder 39 vibrate downwards, when left valve element 2 is rotated to as shown in Figure 8
When, rotary type four-way reversal valve is in right position（That is B working conditions）, now the vibration upwards of exciting cylinder 39, exciting cylinder is realized with this
39 up and down reciprocatingly vibration.
It is first flow a positioned at the first flow of annular groove a10 as shown in Fig. 2 to 8116, positioned at annular groove b11
First flow be first flow b114, with first flow a116 second flow channels being connected are second flow channel a217, with first
Runner b114 second flow channels being connected are second flow channel b215, it is first flow positioned at the first flow of annular groove p12
p323, it is first flow t positioned at the first flow of annular groove t13322;The jackshaft 3 and first flow p323 are connected
Second through hole is the second through hole p221, with the second through hole p221 first through hole being connected are first through hole p120, it is described in
Countershaft 3 and first flow t322 the second through holes being connected are the second through hole t219, with the second through hole t219 be connected
One through hole is first through hole t118.Wherein, the first flow a1The 16 and first flow b114 is adjacent, the first flow
p323 and first flow t322 is adjacent.The per revolution of the motor 40, liquid flow path direction commutates 2n times, is achieved in each oil circuit and connects
Logical cut-out is each 2n times（N is positive integer）.As shown in Figure 7 and Figure 8, now n=2, i.e. motor per revolution, liquid flow path direction
Commutation 4 times, if Spool rotating speed is x（Rev/min）, electro-hydraulic vibration exciter frequency is just：
。
A kind of commutation work of double spool double freedom rotary type four-way reversal valve with jackshaft 3 that the present invention is provided
Process is：
The main shaft of motor 40 is connected by shaft coupling with the external part 7 of left valve element 2, drives left valve element 2 to rotate.
When left valve element 2 rotates to position as shown in Figure 7, reversal valve of the present invention is in P → A, the working condition of B → T
(i.e. A working conditions）.Now, second flow channel a217 and first through hole p120 connections, second flow channel b215 and first through hole t118 connect
It is logical.The hydraulic oil for flowing into annular groove p12 by P oil inlets 31 passes through first flow p323, flow into the second through hole p221, with laggard
Enter first through hole p120, by with first through hole p1The second flow channel a of left valve element 2 of 20 connections217 enter first flow a116, by
First flow a116 flow into annular groove a10, most enter the epicoele of exciting cylinder 39 through A hydraulic fluid ports 29 afterwards；Meanwhile, from the cavity of resorption of exciting cylinder 39
The hydraulic oil of outflow flows through B hydraulic fluid ports 30, and first flow b is entered by the annular groove b11 of left valve element 2114, then flow into second
Road b215, by with second flow channel b2The first through hole t of 15 connections118, flow into the second through hole t219, then by first flow t322
Annular groove t13 is flowed into, fuel tank is finally flowed back to by T oil return openings 32, now exciting cylinder 39 vibrates downwards.
When left valve element 2 rotates to position as shown in Figure 8, reversal valve of the present invention is in P → B, the working condition of T → A
（That is B working conditions）.The now second flow channel b of left valve element 2215 and first through hole p120 connections, while the second flow channel of left valve element 2
a217 and first through hole t118 connections.The hydraulic oil for flowing into annular groove p12 by P oil inlets 31 passes through the first flow of right valve element 4
p323, flow into the through hole p of jackshaft 3 second221, subsequently enter the first through hole p of jackshaft 3120, by with first through hole p120 connect
The logical second flow channel b of left valve element 2215 enter first flow b114, by first flow b114 flow into annular groove b11, most afterwards through B
Hydraulic fluid port 30 enters the cavity of resorption of exciting cylinder 39；Meanwhile, A hydraulic fluid ports 29 are flowed through from the hydraulic oil of the epicoele of exciting cylinder 39 outflow, by left valve element 2
Annular groove a10 enters first flow a116, then flow into second flow channel a217, by with second flow channel a2The centre of 17 connections
The first through hole t of axle 3118, flow into the second through hole t219, then by the first flow t of right valve element 4322 flow into annular groove t13, finally
Fuel tank is flowed back to by T oil return openings 32.With the rotation of left valve element 2, reversal valve of the present invention be periodically alternately at A working conditions and
B working conditions, realize the commutation function of reversal valve of the present invention, drive exciting cylinder to be vibrated repeatedly about 39 with this.
While left valve element 2 rotates, the axial displacement of right valve element 4 is accomplished by the following way.Such as Fig. 1 and Fig. 2 institutes
Show, the first control chamber 8, the right side of right valve element 4 and the wall of valve body 1 are formed between the left outside end face and the wall of valve body 1 of right valve element 4
Between form the second control chamber 99.The first control chamber 8 and the second control chamber 9 are controlled using a three-way diverter valve 38, so as to control
Make the axial displacement of right valve element 4.When three-way diverter valve 38 is in middle position, right valve element 4 is without axial displacement, remains stationary；When three
When logical reversal valve 38 is in left position, right valve element 4 moves right；When three-way diverter valve 38 is in right position, right valve element 4 is to moving to left
It is dynamic.The size of its valve port opening is controlled by controlling the axial movement of right valve element 4, so as to control the amplitude position of executing agency
Move.
Knowable to foregoing description, rotating type change valve simple structure provided in an embodiment of the present invention, and also critical piece is left
Valve element 2 and the simple structure of right valve element 4, convenient processing and manufacture.
In the present embodiment, the second flow channel a of left valve element 2217th, second flow channel b215 by the sector region of boss 37 of jackshaft 3
When covering completely, now the oilhole of left valve element 2 is in zero-bit.By changing the sector region size of boss 37 of jackshaft 3, it is capable of achieving
Plus lap, negative covering and zero lap characteristic to the oilhole of left valve element 2.
In sum, there is provided a kind of double spool double freedom rotary type four-way reversal valve with jackshaft, realize to electricity
The working frequency of liquid vibrator is independently controlled with amplitude, overcome that existing hydraulicdirectional control valve flow is small, axial hydraulic power big,
Commutating frequency is low and is difficult the defect of regulation.
The object, technical solutions and advantages of the present invention have been carried out further by the above-listed preferred embodiment that the present invention is provided
Describe in detail, should be understood that and the foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention,
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (9)
1. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft, it is characterised in that：Including a middle part edge
It is disposed with from left to right through a motor-driven left valve element and the left valve element in the valve body for axially penetrating through, the valve body
The jackshaft and one for rotating connection be slideably positioned in valve body and middle part axially through right valve element, the left end of the jackshaft
Rotated with the right-hand member of the left valve element and be connected, the right-hand member of the jackshaft is horizontally through right valve element and extends to and is fixed on valve body end
In the right end cap in portion, described valve body the other end is fixed with a left end cap；The outer surface of the left valve element and right valve element is from left-hand
Right septum is provided with two annular grooves, is circumferentially uniformly laid with the n first flow of radial direction, institute on the annular groove respectively
State that left valve element is also circumferentially spaced to offer 2n second flow channels from left to right, in two annular grooves of the left valve element each
First flow be connected with a wherein second flow channel respectively；The jackshaft is circumferentially provided with 2n from left to right at equal intervals
First through hole, the jackshaft outer surface is interval with two the second through holes radially, the right valve element two from left to right
Respective first flow is connected through wherein one second through hole with a wherein first through hole respectively in annular groove, and n is positive integer；
The right valve element two ends end face corresponding with valve body forms the first control chamber and the second control chamber, by a three-way diverter valve through control
Make the first control chamber and the second control chamber realizes the axial movement of right valve element；On valve body wall where the left valve element annular groove
Be provided with the A hydraulic fluid ports and B hydraulic fluid ports of radial direction successively from left to right, on the valve body wall where the right valve element annular groove from left to right according to
The secondary P oil inlets and T oil return openings for being provided with radial direction；The left end of the left valve element is in close contact with left end cap, the right side of the jackshaft
End is in close contact with right end cap.
2. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：The valve body is located at first control chamber and the second control chamber and is provided with from bottom to top respectively and the triplet commutation
Valve connected the first hydraulic fluid port and the second hydraulic fluid port, first hydraulic fluid port and the second hydraulic fluid port are controlled with first control chamber and second respectively
Chamber processed is connected.
3. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：Angle is between two adjacent second flow channels（360/2n）°, angle is between two adjacent first through hole（360/
2n）°.
4. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：The left end of the left valve element has extended laterally a projecting shaft, the projecting shaft through the left end cap and with the electricity
The main shaft connection of machine.
5. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：The left valve element right-hand member is provided with an endoporus, and the jackshaft left side is circumferentially spaced to be provided with several boss, described
Boss stretches into the endoporus and forms several circumferentially spaced sealing areas, and described with the left valve element inner face
Two runners are extended at the endoporus, and the first through hole is extended at boss.
6. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 5, it is special
Levy and be：The boss forms 2n sealing area in fan-shaped and relative with left valve element inner face；The first through hole is located at
Between two adjacent sealing areas.
7. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：Annular groove on the left valve element is respectively annular groove a and annular groove b, the annular groove of the right valve element
Respectively annular groove p and annular groove t, the annular groove a, annular groove b, annular groove p and annular groove t are each
It is connected with the A hydraulic fluid ports, B hydraulic fluid ports, P oil inlets and T oil return openings.
8. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：The oil inlet M of radial direction is provided with the right end cap from top to bottom, is provided with is connected with the jackshaft right-hand member from left to right
Axially extending bore f, the axially extending bore f is connected with the lower end of the oil inlet M, is provided with one on the valve body from top to bottom and lets out
Hydraulic fluid port N, the drain tap N are located at horizontal runner e1 and the horizontal runner e2 on right end cap and institute on valve body through one
The upper end for stating oil inlet M is connected；The runner e1 and runner e2 is on same axis and is interconnected.
9. a kind of double spool double freedom rotary type four-way reversal valve with jackshaft according to claim 1, it is special
Levy and be：Interval is arranged with Combined sealing circle, the centre between the left valve element right-hand member endoporus and jackshaft
Interval is arranged with O-ring seal between axle and right valve element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510576256.1A CN105221505B (en) | 2015-09-11 | 2015-09-11 | A kind of double spool double freedom rotary type four-way reversal valve with jackshaft |
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| CN201510576256.1A CN105221505B (en) | 2015-09-11 | 2015-09-11 | A kind of double spool double freedom rotary type four-way reversal valve with jackshaft |
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| CN105221505B true CN105221505B (en) | 2017-06-06 |
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| CN201510576256.1A Expired - Fee Related CN105221505B (en) | 2015-09-11 | 2015-09-11 | A kind of double spool double freedom rotary type four-way reversal valve with jackshaft |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106438625B (en) * | 2016-06-27 | 2018-11-13 | 浙江工业大学 | The electro-hydraulic high-speed switch valves of spool outer shroud spiral flute type 2D |
| CN106593980A (en) * | 2016-10-10 | 2017-04-26 | 合肥协力液压科技有限公司 | Hydraulic oil control valve |
| CN106438541B (en) * | 2016-10-10 | 2018-04-17 | 合肥协力液压科技有限公司 | A kind of double-layer hydraulic valve |
| CN106351904B (en) * | 2016-10-10 | 2018-04-17 | 合肥协力液压科技有限公司 | A kind of double-layer hydraulic oil controlling valve |
| CN110296118B (en) * | 2019-08-05 | 2024-04-02 | 安徽理工大学 | Be applied to automatic switch-over structure of two degrees of freedom rotary valve case |
| CN110319238B (en) * | 2019-08-05 | 2024-03-22 | 安徽理工大学 | High-flow electrohydraulic proportional reversing excitation dual-purpose valve |
| CN110319242B (en) * | 2019-08-05 | 2024-03-26 | 安徽理工大学 | Rotary valve core switching mechanism based on bidirectional torsion spring |
| CN110285238B (en) * | 2019-08-05 | 2024-04-12 | 安徽理工大学 | Rotary valve core switching mechanism based on cross limiting port |
| CN112460013B (en) * | 2019-09-06 | 2023-04-18 | 中石化石油工程技术服务有限公司 | Hydraulic plunger pump and hydraulic end thereof |
| CN111059092B (en) * | 2019-12-25 | 2022-02-22 | 中航工业南京伺服控制系统有限公司 | Dual-system energy selection valve and isolation device thereof |
| CN111059025B (en) * | 2019-12-26 | 2021-07-30 | 宁波真格液压科技有限公司 | Compact air compressor |
| CN111828439B (en) * | 2020-06-16 | 2022-08-09 | 浙大城市学院 | High-frequency hydraulic vibration exciter |
| CN113446278B (en) * | 2021-06-28 | 2022-07-22 | 温岭市富力泵业有限公司 | Hydraulic reversing valve |
| CN114345677B (en) * | 2021-10-29 | 2023-03-24 | 中国航发西安动力控制科技有限公司 | Valve sleeve type pneumatic vibrator |
| CN116696881B (en) * | 2023-07-31 | 2023-10-03 | 烟台天兵工程机械有限公司 | Valve core mechanism of reversing valve of hydraulic breaking hammer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2635039B2 (en) * | 1987-03-18 | 1997-07-30 | 豊田工機株式会社 | Servo valve device for power steering device |
| CN88200510U (en) * | 1988-01-16 | 1988-08-31 | 盂令元 | Rotary hydraulic servo valve |
| JPH0742916Y2 (en) * | 1989-09-20 | 1995-10-04 | 自動車機器株式会社 | Rotary valve for power steering |
| US6499507B1 (en) * | 2000-09-12 | 2002-12-31 | Ford Global Technologies, Inc. | Rotary valve |
| CN100565158C (en) * | 2007-12-14 | 2009-12-02 | 浙江工业大学 | Electrohydraulic excitation controlling valve |
| CN103089732B (en) * | 2013-01-21 | 2015-04-15 | 天津大学 | Double-valve-core rotary type direction throttle valve driven by two motors |
| CN103104568B (en) * | 2013-01-22 | 2015-05-20 | 浙江大学 | Internally piloting type two-freedom-degree valve core rotation type four-way reversing valve |
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