CN106050781A - Hydraulic high-frequency energy-saving servo valve - Google Patents
Hydraulic high-frequency energy-saving servo valve Download PDFInfo
- Publication number
- CN106050781A CN106050781A CN201610581634.XA CN201610581634A CN106050781A CN 106050781 A CN106050781 A CN 106050781A CN 201610581634 A CN201610581634 A CN 201610581634A CN 106050781 A CN106050781 A CN 106050781A
- Authority
- CN
- China
- Prior art keywords
- oil
- spool
- annular groove
- sealing wall
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
Abstract
The invention provides a hydraulic high-frequency energy-saving servo valve and relates to the hydraulic field. The hydraulic high-frequency energy-saving servo valve comprises a valve element, a valve body, a servo motor and a transmission mechanism, wherein the valve element is of a shaft rod type structure and is used for moving leftwards and rightwards along the axis of the valve element; the valve body is of a hole groove structure and is used for containing the valve element and moving in cooperation with the valve element so that different work states can be formed; the servo motor is used for providing movement power for the valve element; and the transmission mechanism is used for transmitting the power of the servo motor to the valve element so that the valve element can be driven to move and return. The shaft rod type valve element structure and the hole groove type valve body structure are adopted for the hydraulic high-frequency energy-saving servo valve, and the product manufacturing precision can be easily improved so that energy can be substantially saved; besides, according to the hydraulic high-frequency energy-saving servo valve, due to the fact that by means of the transmission mechanism, the valve element is directly driven to move through the servo motor and a reset spring in the prior art is omitted, when the valve element of the hydraulic high-frequency energy-saving servo valve moves leftwards and rightwards, elasticity of the reset spring does not need to be overcome, and therefore the servo frequency of the hydraulic high-frequency energy-saving servo valve is improved.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, particularly to a kind of hydraulic pressure high-frequency energy-saving servo valve, be applied to hydraulic energy-saving
And accurately control occasion.
Background technology
Hydraulic efficiency servo-valve, is that a kind of output becomes certain functional relationship the hydraulic control that can quickly respond with input quantity
Valve, is the critical elements of Hydrauservo System.Hydraulic efficiency servo-valve by structure be divided into side valve type, moving-coil baffle-type, nozzle baffle type,
The board-like peace of jet pipe type, jet is board-like.
Being illustrated with side valve type hydraulic efficiency servo-valve, existing side valve type hydraulic efficiency servo-valve includes spool, two reset bullets
Spring and linear electric motors.The side valve type hydraulic efficiency servo-valve of said structure, needs when spool moves left and right to overcome two back-moving springs
Elastic force so that the servo frequency of side valve type hydraulic efficiency servo-valve is low, causes its energy expenditure big.
Summary of the invention
It is an object of the present invention to provide a kind of and can be effectively improved servo frequency the most energy-conservation hydraulic pressure high frequency
Energy-saving servo valve.
Inventor finds, existing side valve type hydraulic efficiency servo-valve is due to the existence of back-moving spring so that during design, if driven
The little meeting of strength of dynamic back-moving spring design causes frequency low；Drive the excessive merit causing driving motor of strength of back-moving spring design
Rate to strengthen, and not only drives the power consumption of motor to increase, and the quality and the volume that simultaneously drive motor all must increase, so energy disappears
Consume and be directly proportional to raising frequency.And due to the limited mass system of servo valve in hydraulic system so that cannot rely on increasing servo
The power of motor solves the problem that frequency is low, and this is first group of contradiction.Additionally, spool slides in valve body needs spool and valve
The oil film that the fit clearance of body is formed lubricates, and oil film thickness determines the coefficient of friction of spool sliding process, and oil film thickness then rubs
Coefficient is little, and the resistance to sliding of spool is the least, thus one come servo valve frequency can height a bit, the weight of motor can be light by one
Point, the driving electric energy of motor can also be a little less.But occur in that again conflict: between the coordinating of oil film thickness i.e. spool and valve body
Gap is big, then the amount of leakage of hydraulic oil adds (refering to hydromechanical gap flow formula) the most therewith.And the present invention
Aim to provide a kind of hydraulic pressure high-frequency energy-saving servo valve cancelling offsetting spring structure, so that aforementioned two groups of contradictions are the most so
Prominent, thus increase the space of the energy-saving design of the present invention.
Especially, the invention provides a kind of hydraulic pressure high-frequency energy-saving servo valve, including:
Spool, shaft rod type structure, for moving left and right along its axis；
Valve body, hole slot type structure, it is used for accommodating described spool and coordinating it to move, to form different duties；
Servomotor, for providing mobile power to described spool；With
Drive mechanism, for the power of described servomotor is passed to described spool, with drive described valve core movement and
Reset.
Further, described spool has shaft core, and described shaft core has wherein one end, opposed two ends for connecting end, described
Connecting end and be used for connecting described drive mechanism, described shaft core is sequentially with first to fourth oil sealing by described connection end to the other end
Wall, described first to described 4th oil sealing wall arranges and projecting radially outwardly along described shaft core in interval.
Further, described valve body is provided with spool bore and the low pressure oil pocket communicated therewith, high-voltage oil cavity, left working oil
Chamber and right working oil chamber；
Described spool bore matches with the structure of described spool, and described spool bore has first be sequentially arranged to five rings
Groove, wherein, described first annular groove is used for connecting described low pressure oil pocket, and described first annular groove is additionally operable to as described connection end and described
First oil sealing wall provides sports center, and described second annular groove is used for connecting described left working oil chamber, and described 3rd annular groove is for even
Logical described high-voltage oil cavity, described 3rd annular groove is additionally operable to provide sports center into described second and described 3rd oil sealing wall, described
4th annular groove is used for connecting described right working oil chamber, and described 5th annular groove is used for connecting described low pressure oil pocket, described 5th annular groove
It is additionally operable to provide sports center for described 4th oil sealing wall；
Described low pressure oil pocket has a hole in the middle of the bottom surface being formed at described valve body and is divided into two inclined holes to both sides, described
Two inclined holes communicate with described first annular groove and described 5th annular groove respectively, thus form described low pressure oil pocket；
Described high-voltage oil cavity has in the middle of the bottom surface being formed at described valve body and is perpendicular to the high pressure oilhole of described spool bore,
Described high pressure oilhole communicates with described 3rd annular groove, at the spool aperture at described 3rd annular groove two ends by described second oil sealing wall and
Described 3rd oil sealing wall blocks, thus forms described high-voltage oil cavity；
Described left working oil chamber has on the left of the bottom surface of described valve body and is perpendicular to the left hole of described spool bore, described
Left hole connects described second annular groove, and the exterior lateral area of described second annular groove is blocked by described first oil sealing wall, thus formed institute
State left working oil chamber；
Described right working oil chamber has on the right side of the bottom surface of described valve body and is perpendicular to the right ports of described spool bore, described
Right ports connects described 4th annular groove, and the exterior lateral area of described 4th annular groove is blocked by described 4th oil sealing wall, thus formed institute
State right working oil chamber.
Further, described duty includes intermediateness,
Blocked by described second oil sealing wall and described 3rd oil sealing wall at the spool aperture at described 3rd annular groove two ends, make institute
Stating high-voltage oil cavity to close, the most described left working oil chamber is blocked by described first oil sealing wall, and described right working oil chamber is by institute
State the 4th oil sealing wall and block formation closed state, so that the hydraulic oil of described valve inner is all cut off.
Further, described duty includes the state of moving to left,
Described servomotor drives described drive mechanism and then drives described spool to move to left, the valve of described 3rd annular groove left end
Being blocked by described second oil sealing wall at core bore footpath, owing to described spool moves to left, described 3rd oil sealing wall is right with described 3rd annular groove
One gap is getd out of the way, so that the hydraulic oil of described high-voltage oil cavity enters described right work through this gap, road at the spool aperture of end
Make oil pocket, and the aperture of described spool bore right-hand member corresponding at described right working oil chamber is blocked by described 4th oil sealing wall, thus
Described right working oil chamber is made to export hydraulic oil；
Blocked by described second oil sealing wall at the spool aperture of described 3rd annular groove left end so that the height of described high-voltage oil cavity
Force feed can not enter described left working oil chamber, and owing to described spool moves to left, described first oil sealing wall is left with described left working oil chamber
One gap is getd out of the way, so that the hydraulic oil of described left working oil chamber enters described low through this gap, road at the spool aperture of end
Pumping cavity flows back to fuel tank.
Further, described duty includes the state of moving to right,
Described servomotor drives described drive mechanism and then drives described spool to move to right, the valve of described 3rd annular groove right-hand member
Being blocked by described 3rd oil sealing wall at core bore footpath, owing to described spool moves to right, described second oil sealing wall is left with described 3rd annular groove
One gap is getd out of the way, so that the hydraulic oil of described high-voltage oil cavity enters described left work through this gap, road at the spool aperture of end
Make oil pocket, and blocked by described first oil sealing wall at the aperture of described spool bore left end corresponding at described left working oil chamber, from
And make described left working oil chamber export hydraulic oil；
Blocked by described 3rd oil sealing wall at the spool aperture of described 3rd annular groove right-hand member so that the height of described high-voltage oil cavity
Force feed can not enter described right working oil chamber, and owing to described spool moves to right, described 4th oil sealing wall is right with described right working oil chamber
One gap is getd out of the way, so that the hydraulic oil of described right working oil chamber enters described through this gap, road at the spool aperture of end
Low pressure oil pocket flows back to fuel tank.
Further, described drive mechanism includes the connection end of connecting rod and rocking arm, one end of described connecting rod and described spool
Being connected by bearing pin, the other end of described connecting rod is connected by bearing pin with described rocking arm, described rocking arm and described servomotor
Drive shaft is by bonded.
Further, described drive mechanism also includes that axle sleeve, described axle sleeve are arranged on the outside of described bearing pin.
Further, described hydraulic pressure high-frequency energy-saving servo valve also includes embedding the computer control unit installed, described meter
Calculation machine control unit is used for controlling the work of described hydraulic pressure high-frequency energy-saving servo valve.
Hydraulic pressure high-frequency energy-saving servo valve of the present invention uses valve core structure and the valve body structure of hole slot formula of shaft rod type,
The most easily improve the accuracy of manufacture of product and then the most energy-conservation, and owing to the present invention is straight through drive mechanism by servomotor
Tape splicing movable valve plug move, owing to eliminating the back-moving spring of prior art so that spool of the present invention when side-to-side movement without gram
Take the elastic force of back-moving spring, thus improve the servo frequency of the present invention.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, advantage and the feature of the present invention.
Accompanying drawing explanation
Describe some specific embodiments of the present invention the most by way of example, and not by way of limitation in detail.
Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing:
Signal when Fig. 1 is that hydraulic pressure high-frequency energy-saving servo valve cuts rocking arm shell and valve body open according to an embodiment of the invention
Property perspective view；
Fig. 2 is the Fig. 1 schematic cross sectional views along line A-A cutting；
Fig. 3 is the enlarged schematic sectional view of valve body shown in Fig. 1；
Fig. 4 is the Fig. 3 enlarged schematic sectional view along line B-B cutting；
Fig. 5 is the schematic enlarged front view of spool shown in Fig. 1；
Fig. 6 is along left working oil chamber and the schematic cross sectional views of right working oil chamber place plane cutting；
Fig. 7 is the schematic cross sectional views along the plane cutting of low pressure oil pocket place；
Fig. 8 is the servo valve of hydraulic pressure high-frequency energy-saving shown in Fig. 1 schematic working state figure when moving to left；
Fig. 9 is the servo valve of hydraulic pressure high-frequency energy-saving shown in Fig. 1 schematic working state figure when moving to right.
In figure, each symbol represents that implication is as follows:
10 spools,
11 shaft core, 12 connection ends, 13 first oil sealing walls, 14 second oil sealing walls, 15 the 3rd oil sealing walls, 16 the 4th oil sealing walls,
20 valve bodies,
21 spool bore, 211 first annular grooves, 212 second annular grooves, 213 the 3rd annular grooves, 214 the 4th annular grooves, 215 the 5th annular grooves,
22 low pressure oil pockets, 23 high-voltage oil cavities, 24 left working oil chambers, 25 right working oil chambers,
30 servomotors,
40 drive mechanisms,
41 connecting rods, 42 rocking arms, 43 bearing pins, 44 axle sleeves, 45 rocking arm shells.
Detailed description of the invention
Signal when Fig. 1 is that hydraulic pressure high-frequency energy-saving servo valve cuts rocking arm shell and valve body open according to an embodiment of the invention
Property perspective view.As it is shown in figure 1, the invention provides a kind of hydraulic pressure high-frequency energy-saving servo valve, including: spool 10, valve body 20, servo
Motor 30 and drive mechanism 40, wherein, spool 10 is shaft rod type structure, for moving left and right along its axis；Valve body 20 is hole slot
Formula structure, is used for accommodating described spool 10 and coordinating it to move, to form different duties；Servomotor 30 is for institute
State spool 10 and mobile power is provided；Drive mechanism 40 is used for the power of described servomotor 30 is passed to described spool 10, with
Described spool 10 is driven to move and reset.
Hydraulic pressure high-frequency energy-saving servo valve of the present invention uses valve core structure and the valve body structure of hole slot formula of shaft rod type,
The most easily improve the accuracy of manufacture of product and then the most energy-conservation, and due to the present invention by servomotor 30 through drive mechanism
Directly band movable valve plug 10 moves, owing to eliminating the back-moving spring of prior art so that spool 10 of the present invention is when side-to-side movement
Without overcoming the elastic force of back-moving spring, thus improve the servo frequency of the present invention.
Fig. 2 is the Fig. 1 schematic cross sectional views along line A-A cutting.In the present embodiment, described drive mechanism 40 includes connecting rod 41
With Rocker arm 42, the connection end 12 of one end of described connecting rod 41 and described spool 10 is connected by bearing pin 43, described connecting rod 41 another
One end is connected by bearing pin 43 with described Rocker arm 42, and described Rocker arm 42 passes through key (in figure with the drive shaft of described servomotor 30
Do not mark) connect.
Further, described drive mechanism 40 also includes that axle sleeve 44, described axle sleeve 44 are arranged on the outside of described bearing pin 43.
Further, Rocker arm 42 is arranged in rocking arm shell 45, and spool 10 is inserted in valve body 20, and spool 10 one end is by pin hole (figure
In do not mark) be connected with connecting rod 41 one end with axle sleeve 44 by bearing pin 43, the pin hole of connecting rod 41 other end is by bearing pin 43 He
Axle sleeve 44 is connected with the connecting rod pin-and-hole (not marking in figure) of Rocker arm 42, the end face keyhole (not marking in figure) of Rocker arm 42 be arranged on
The axle of the servomotor 30 on rocking arm shell 45 is connected, and the another side of rocking arm shell 45 connects valve body 20.
Fig. 5 is the schematic enlarged front view of spool 10 shown in Fig. 1.In the present embodiment, described spool 10 has shaft core 11,
Described shaft core 11 has wherein one end, opposed two ends for connecting end 12, and described connection end 12 is used for connecting described drive mechanism
40, described shaft core 11 is sequentially with first to fourth oil sealing wall 13,14,15,16 by described connection end 12 to the other end, and described
One arranges and projecting radially outwardly along described shaft core 11 to described 4th oil sealing wall 13,14,15,16 in interval.
Fig. 3 is the amplification schematic cross sectional views of valve body 20 shown in Fig. 1.Fig. 4 is Fig. 3 schematically putting along line B-B cutting
Big sectional view.Fig. 6 is along left working oil chamber 24 and the schematic cross sectional views of right working oil chamber 25 place plane cutting.Fig. 7 is
Schematic cross sectional views along the plane cutting of low pressure oil pocket 22 place.
As in figure 2 it is shown, referring also to Fig. 3 and Fig. 4, in the present embodiment, described valve body 20 is provided with spool bore 21 and with
Low pressure oil pocket 22, high-voltage oil cavity 23, left working oil chamber 24 and the right working oil chamber 25 that it communicates；
As it is shown on figure 3, referring also to Fig. 6, described spool bore 21 matches with the structure of described spool 10, described spool bore 21
Having the first to the 5th annular groove 211,212,213,214,215 being sequentially arranged, wherein, described first annular groove 211 is used for connecting
Described low pressure oil pocket 22, described first annular groove 211 is additionally operable to provide motion into described connection end 12 and described first oil sealing wall 13
Place, described second annular groove 212 is used for connecting described left working oil chamber 24, and described 3rd annular groove 213 is used for connecting described high pressure
Oil pocket 23, described 3rd annular groove 213 is additionally operable to provide sports center for described second oil sealing wall 14 and described 3rd oil sealing wall 15,
Described 4th annular groove 214 is used for connecting described right working oil chamber 25, and described 5th annular groove 215 is used for connecting described low pressure oil pocket
22, described 5th annular groove 215 is additionally operable to provide sports center for described 4th oil sealing wall 16；
As shown in Figure 4, referring also to Fig. 7, described low pressure oil pocket 22 has the bottom surface middle being formed at described valve body 20
Individual hole is divided into two inclined holes (not marking in figure) to both sides, said two inclined hole respectively with described first annular groove 211 and described
Five annular grooves 215 communicate, thus form described low pressure oil pocket 22；
As it is shown on figure 3, referring also to Fig. 4, described high-voltage oil cavity 23 have in the middle of the bottom surface being formed at described valve body 20 and
Being perpendicular to the high pressure oilhole (not marking in figure) of described spool bore 21, described high pressure oilhole communicates with described 3rd annular groove 213, institute
State and blocked by described second oil sealing wall 14 and described 3rd oil sealing wall 15 at the spool aperture at the 3rd annular groove 213 two ends, thus shape
Become described high-voltage oil cavity 23；
As shown in Figure 6, described left working oil chamber 24 has on the left of the bottom surface of described valve body 20 and is perpendicular to described spool
The left hole in hole 21, described left hole connects described second annular groove 212, and the exterior lateral area of described second annular groove 212 is by described the
One oil sealing wall 13 blocks, thus forms described left working oil chamber 24；
As shown in Figure 6, described right working oil chamber 25 has on the right side of the bottom surface of described valve body 20 and is perpendicular to described spool
The right ports in hole 21, described right ports connects described 4th annular groove 214, and the exterior lateral area of described 4th annular groove 214 is by described the
Four oil sealing walls 16 block, thus form described right working oil chamber 25.
Further, as in figure 2 it is shown, described duty includes intermediateness, the reset winding energising of servomotor 30,
Now it is indirectly connected with the spool 10 of servomotor 30 axle by Rocker arm 42 connecting rod 41 connector such as grade, is positioned at position shown in Fig. 2, described
Blocked by described second oil sealing wall 14 and described 3rd oil sealing wall 15 at the spool aperture at the 3rd annular groove 213 two ends, make described height
Pumping cavity 23 is closed, and the most described left working oil chamber 24 is blocked by described first oil sealing wall 13, and described right working oil chamber 25
Formation closed state is blocked, so that the hydraulic oil within described valve body 20 is all cut off by described 4th oil sealing wall 16.
Fig. 8 is the servo valve of hydraulic pressure high-frequency energy-saving shown in Fig. 1 schematic working state figure when moving to left.As shown in Figure 8, described
Duty includes that the state of moving to left, servomotor 30 move to left the winding energising of an angle, now by Rocker arm 42 connecting rod 41 grade even
Fitting is indirectly connected with the spool 10 of servomotor 30 axle, is moved to the left the position shown in a Fig. 8, and described servomotor 30 carries
Move described drive mechanism 40 and then drive described spool 10 to move to left, described at the spool aperture of described 3rd annular groove 213 left end
Second oil sealing wall 14 blocks, owing to described spool 10 moves to left, and described 3rd oil sealing wall 15 and the valve of described 3rd annular groove 213 right-hand member
One gap is getd out of the way, so that the hydraulic oil of described high-voltage oil cavity 23 enters described right working oil through this gap, road at core bore footpath
Chamber 25, and the aperture of described spool bore 21 right-hand member corresponding at described right working oil chamber 25 is blocked by described 4th oil sealing wall 16,
So that described right working oil chamber 25 exports hydraulic oil；
Blocked by described second oil sealing wall 14 at the spool aperture of described 3rd annular groove 213 left end so that described hydraulic oil
The hydraulic oil in chamber 23 can not enter described left working oil chamber 24, owing to described spool 10 moves to left, and described first oil sealing wall 13 and institute
State and get out of the way one gap at the spool aperture of left working oil chamber 24 left end, so that the hydraulic oil of described left working oil chamber 24 passes
This gap, road enters described low pressure oil pocket 22 and flows back to fuel tank.
Fig. 9 is the servo valve of hydraulic pressure high-frequency energy-saving shown in Fig. 1 schematic working state figure when moving to right.As it is shown in figure 9, it is described
Duty includes that the state of moving to right, servomotor 30 move to right the winding energising of an angle, now by Rocker arm 42 connecting rod 41 grade even
Fitting is indirectly connected with the spool 10 of servomotor 30 axle, moves right one and is positioned at the position shown in Fig. 9, described servomotor
30 drive described drive mechanism 40 and then drive described spool 10 to move to right, quilt at the spool aperture of described 3rd annular groove 213 right-hand member
Described 3rd oil sealing wall 15 blocks, owing to described spool 10 moves to right, and described second oil sealing wall 14 and described 3rd annular groove 213 left end
Spool aperture at get out of the way one gap so that the hydraulic oil of described high-voltage oil cavity 23 through this gap, road enter described left work
Make oil pocket 24, and by described first oil sealing wall 13 at the aperture of described spool bore 21 left end corresponding at described left working oil chamber 24
Block, so that described left working oil chamber 24 exports hydraulic oil；
Blocked by described 3rd oil sealing wall 15 at the spool aperture of described 3rd annular groove 213 right-hand member so that described hydraulic oil
The hydraulic oil in chamber 23 can not enter described right working oil chamber 25, owing to described spool 10 moves to right, and described 4th oil sealing wall 16 and institute
State and get out of the way one gap at the spool aperture of right working oil chamber 25 right-hand member, so that the hydraulic oil of described right working oil chamber 25 is worn
Gap, Guo Zhe road enters described low pressure oil pocket 22 and flows back to fuel tank.
Further, in the present embodiment, described hydraulic pressure high-frequency energy-saving servo valve also includes embedding the computer control installed
Unit processed (is not drawn in figure), and described computer control unit is used for controlling the work of described hydraulic pressure high-frequency energy-saving servo valve.
So far, although those skilled in the art will appreciate that the multiple of the most detailed present invention of illustrate and describing show
Example embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that and recognize
It is set to and covers other variations or modifications all these.
Claims (9)
1. a hydraulic pressure high-frequency energy-saving servo valve, it is characterised in that including:
Spool, shaft rod type structure, for moving left and right along its axis；
Valve body, hole slot type structure, it is used for accommodating described spool and coordinating it to move, to form different duties；
Servomotor, for providing mobile power to described spool；With
Drive mechanism, for passing to described spool by the power of described servomotor, to drive described valve core movement and reset.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 1, it is characterised in that described spool has shaft core, described
Shaft core have wherein one end, opposed two ends for connect end, described connection end is used for connecting described drive mechanism, described shaft core by
Described connection end to the other end is sequentially with first to fourth oil sealing wall, and described first to described 4th oil sealing wall arranges in interval
And projecting radially outwardly along described shaft core.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 2, it is characterised in that described valve body is provided with spool bore with
And low pressure oil pocket, high-voltage oil cavity, left working oil chamber and the right working oil chamber communicated therewith；
Described spool bore matches with the structure of described spool, and described spool bore has the first to the 5th annular groove being sequentially arranged, its
In, described first annular groove is used for connecting described low pressure oil pocket, and described first annular groove is additionally operable to as described connection end and described first
Oil sealing wall provides sports center, and described second annular groove is used for connecting described left working oil chamber, and described 3rd annular groove is used for connecting institute
State high-voltage oil cavity, described 3rd annular groove be additionally operable to into described second and described 3rd oil sealing wall provide sports center, the described 4th
Annular groove is used for connecting described right working oil chamber, and described 5th annular groove is used for connecting described low pressure oil pocket, and described 5th annular groove is also used
In providing sports center for described 4th oil sealing wall；
Described low pressure oil pocket has a hole in the middle of the bottom surface being formed at described valve body and is divided into two inclined holes, said two to both sides
Inclined hole communicates with described first annular groove and described 5th annular groove respectively, thus forms described low pressure oil pocket；
Described high-voltage oil cavity has in the middle of the bottom surface being formed at described valve body and is perpendicular to the high pressure oilhole of described spool bore, described
High pressure oilhole communicates with described 3rd annular groove, by described second oil sealing wall and described at the spool aperture at described 3rd annular groove two ends
3rd oil sealing wall blocks, thus forms described high-voltage oil cavity；
Described left working oil chamber has on the left of the bottom surface of described valve body and is perpendicular to the left hole of described spool bore, described left side
Hole connects described second annular groove, and the exterior lateral area of described second annular groove is blocked by described first oil sealing wall, thus formed a described left side
Working oil chamber；
Described right working oil chamber has on the right side of the bottom surface of described valve body and is perpendicular to the right ports of described spool bore, described right side
Hole connects described 4th annular groove, and the exterior lateral area of described 4th annular groove is blocked by described 4th oil sealing wall, thus formed the described right side
Working oil chamber.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 3, it is characterised in that described duty includes middle shape
State,
Blocked by described second oil sealing wall and described 3rd oil sealing wall at the spool aperture at described 3rd annular groove two ends, make described height
Pumping cavity is closed, and the most described left working oil chamber is blocked by described first oil sealing wall, and described right working oil chamber is by described the
Four oil sealing walls block formation closed state, so that the hydraulic oil of described valve inner is all cut off.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 3, it is characterised in that described duty includes moving to left shape
State,
Described servomotor drives described drive mechanism and then drives described spool to move to left, the spool bore of described 3rd annular groove left end
Blocked by described second oil sealing wall at footpath, owing to described spool moves to left, described 3rd oil sealing wall and described 3rd annular groove right-hand member
One gap is getd out of the way, so that the hydraulic oil of described high-voltage oil cavity enters described right working oil through this gap, road at spool aperture
Chamber, and the aperture of described spool bore right-hand member corresponding at described right working oil chamber is blocked by described 4th oil sealing wall, so that institute
State right working oil chamber output hydraulic oil；
Blocked by described second oil sealing wall at the spool aperture of described 3rd annular groove left end so that the hydraulic oil of described high-voltage oil cavity
Described left working oil chamber can not be entered, owing to described spool moves to left, described first oil sealing wall and described left working oil chamber left end
One gap is getd out of the way, so that the hydraulic oil of described left working oil chamber enters described low pressure oil through this gap, road at spool aperture
Fuel tank is flowed back in chamber.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 3, it is characterised in that described duty includes moving to right shape
State,
Described servomotor drives described drive mechanism and then drives described spool to move to right, the spool bore of described 3rd annular groove right-hand member
Blocked by described 3rd oil sealing wall at footpath, owing to described spool moves to right, described second oil sealing wall and described 3rd annular groove left end
One gap is getd out of the way, so that the hydraulic oil of described high-voltage oil cavity enters described left working oil through this gap, road at spool aperture
Chamber, and blocked by described first oil sealing wall at the aperture of described spool bore left end corresponding at described left working oil chamber, so that
Described left working oil chamber output hydraulic oil；
Blocked by described 3rd oil sealing wall at the spool aperture of described 3rd annular groove right-hand member so that the hydraulic oil of described high-voltage oil cavity
Described right working oil chamber can not be entered, owing to described spool moves to right, described 4th oil sealing wall and described right working oil chamber right-hand member
One gap is getd out of the way, so that the hydraulic oil of described right working oil chamber enters described low pressure through this gap, road at spool aperture
Oil pocket flows back to fuel tank.
7. according to the hydraulic pressure high-frequency energy-saving servo valve according to any one of claim 1-6, it is characterised in that described drive mechanism
Including connecting rod and rocking arm, one end of described connecting rod is connected by bearing pin with the connection end of described spool, the other end of described connecting rod
Being connected by bearing pin with described rocking arm, described rocking arm and the drive shaft of described servomotor are by bonded.
Hydraulic pressure high-frequency energy-saving servo valve the most according to claim 7, it is characterised in that described drive mechanism also includes axle
Set, described axle sleeve is arranged on the outside of described bearing pin.
9. according to the hydraulic pressure high-frequency energy-saving servo valve according to any one of claim 1-8, it is characterised in that also include embedding peace
The computer control unit of dress, described computer control unit is used for controlling the work of described hydraulic pressure high-frequency energy-saving servo valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581634.XA CN106050781A (en) | 2016-07-21 | 2016-07-21 | Hydraulic high-frequency energy-saving servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581634.XA CN106050781A (en) | 2016-07-21 | 2016-07-21 | Hydraulic high-frequency energy-saving servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050781A true CN106050781A (en) | 2016-10-26 |
Family
ID=57417233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581634.XA Pending CN106050781A (en) | 2016-07-21 | 2016-07-21 | Hydraulic high-frequency energy-saving servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050781A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187237Y (en) * | 1993-12-26 | 1995-01-11 | 哈尔滨工业大学 | Digital capillary pressure regulating servo valve |
| CN1271821A (en) * | 1999-04-27 | 2000-11-01 | 速睦喜股份有限公司 | Double force drived leading type electromagnetic valve |
| CN2497087Y (en) * | 2001-09-23 | 2002-06-26 | 袁名衡 | Digital-controlled hydraulic servo valve |
| DE10014435B4 (en) * | 2000-03-16 | 2004-04-15 | Bosch Rexroth Teknik Ab | Multi-way valve |
| CN1603634A (en) * | 2003-09-29 | 2005-04-06 | 株式会社亚瑟科技 | Slide spool-type valve |
| CN201723776U (en) * | 2010-05-29 | 2011-01-26 | 无锡职业技术学院 | Semi-enclosed electric linear motion type 4-way reversing valve |
| CN202418077U (en) * | 2012-01-20 | 2012-09-05 | 杨世祥 | Motor-driven servo valve |
| CN202646209U (en) * | 2012-06-08 | 2013-01-02 | 三一重工股份有限公司 | Valve, multi-way reversing valve and engineering machinery |
| CN103090048A (en) * | 2011-10-27 | 2013-05-08 | 北京精密机电控制设备研究所 | High-flow direct-drive digital servo valve |
| CN103148035A (en) * | 2013-03-13 | 2013-06-12 | 武汉海力威机电科技有限公司 | Directly-fed digital hydraulic valve |
| DE102012001964A1 (en) * | 2012-02-02 | 2013-08-08 | Robert Bosch Gmbh | Proportional valve, particularly pressure-, flow- and directional valves, has operable control element which clamps control spring assembly in operating direction, where control spring assembly sets operating path on section |
| CN203549084U (en) * | 2013-10-21 | 2014-04-16 | 青岛众瑞智能仪器有限公司 | Multichannel switching valve |
| CN203670323U (en) * | 2013-11-19 | 2014-06-25 | 曲世杰 | Motor driven reversing valve |
| CN205371706U (en) * | 2015-12-15 | 2016-07-06 | 宁波飞泰工业自控设备有限公司 | Combination valve and single valve thereof |
-
2016
- 2016-07-21 CN CN201610581634.XA patent/CN106050781A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187237Y (en) * | 1993-12-26 | 1995-01-11 | 哈尔滨工业大学 | Digital capillary pressure regulating servo valve |
| CN1271821A (en) * | 1999-04-27 | 2000-11-01 | 速睦喜股份有限公司 | Double force drived leading type electromagnetic valve |
| US6325102B1 (en) * | 1999-04-27 | 2001-12-04 | Smc Corporation | Servo driving pilot-type solenoid valve |
| DE10014435B4 (en) * | 2000-03-16 | 2004-04-15 | Bosch Rexroth Teknik Ab | Multi-way valve |
| CN2497087Y (en) * | 2001-09-23 | 2002-06-26 | 袁名衡 | Digital-controlled hydraulic servo valve |
| CN1603634A (en) * | 2003-09-29 | 2005-04-06 | 株式会社亚瑟科技 | Slide spool-type valve |
| CN201723776U (en) * | 2010-05-29 | 2011-01-26 | 无锡职业技术学院 | Semi-enclosed electric linear motion type 4-way reversing valve |
| CN103090048A (en) * | 2011-10-27 | 2013-05-08 | 北京精密机电控制设备研究所 | High-flow direct-drive digital servo valve |
| CN202418077U (en) * | 2012-01-20 | 2012-09-05 | 杨世祥 | Motor-driven servo valve |
| DE102012001964A1 (en) * | 2012-02-02 | 2013-08-08 | Robert Bosch Gmbh | Proportional valve, particularly pressure-, flow- and directional valves, has operable control element which clamps control spring assembly in operating direction, where control spring assembly sets operating path on section |
| CN202646209U (en) * | 2012-06-08 | 2013-01-02 | 三一重工股份有限公司 | Valve, multi-way reversing valve and engineering machinery |
| CN103148035A (en) * | 2013-03-13 | 2013-06-12 | 武汉海力威机电科技有限公司 | Directly-fed digital hydraulic valve |
| CN203549084U (en) * | 2013-10-21 | 2014-04-16 | 青岛众瑞智能仪器有限公司 | Multichannel switching valve |
| CN203670323U (en) * | 2013-11-19 | 2014-06-25 | 曲世杰 | Motor driven reversing valve |
| CN205371706U (en) * | 2015-12-15 | 2016-07-06 | 宁波飞泰工业自控设备有限公司 | Combination valve and single valve thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180274687A1 (en) | Spool valve | |
| CN104344015A (en) | Electromagnetic valve | |
| CN104508344A (en) | Shock-absorbing valve | |
| CN107989991A (en) | A kind of bidirectional slide valve type electro-hydraulic proportional reducing valve | |
| US2295111A (en) | Manufacture of tubular valve members | |
| CN106050781A (en) | Hydraulic high-frequency energy-saving servo valve | |
| EP0399044B1 (en) | Hydraulic servo valve | |
| CN109676520A (en) | A kind of intracavitary internal-feedback throttling fluid pressure electro spindle | |
| CN108331942B (en) | Valve core assembly, multi-way valve and walking machinery hydraulic system | |
| CN111749939A (en) | Large-traffic two-dimensional piston flow servo valve | |
| CN111457127A (en) | Two-dimensional pilot-operated electromagnetic cartridge valve | |
| US3174510A (en) | Spool type control valve for controlling hydraulic actuators | |
| CN210623006U (en) | Two-dimensional pressure servo variable pump | |
| CN108105194A (en) | A kind of valve member and solenoid valve | |
| CN108716489B (en) | Power stage structure of electro-hydraulic pressure servo valve | |
| CN216812969U (en) | Improved reversing mechanism for displacement control | |
| CN109702501B (en) | Intracavity feedback throttling static pressure rotary table | |
| CN203321917U (en) | Force feedback type electro-hydraulic proportional valve driven by two-degree-of-freedom torque motor | |
| CN208107278U (en) | A kind of high speed electrohydraulic switch valve based on laser gain material manufacture spool | |
| CN217969648U (en) | Hydraulic steering system and steering valve core thereof | |
| CN211116883U (en) | Electromagnetic valve and hydraulic machine | |
| CN111089093A (en) | Energy-saving electro-hydraulic proportional direction valve with improved structure and control method thereof | |
| CN111734838B (en) | Fuel metering valve with integrated valve core | |
| CN111102259A (en) | Two-dimensional pulse width modulation mechanism | |
| CN102889257B (en) | Slide valve type hydraulic valve with differential motion function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |