CN205715033U - A kind of digital control valve controlling oil cylinder speed ring and position ring - Google Patents
A kind of digital control valve controlling oil cylinder speed ring and position ring Download PDFInfo
- Publication number
- CN205715033U CN205715033U CN201620402225.4U CN201620402225U CN205715033U CN 205715033 U CN205715033 U CN 205715033U CN 201620402225 U CN201620402225 U CN 201620402225U CN 205715033 U CN205715033 U CN 205715033U
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- China
- Prior art keywords
- oil cylinder
- feedback
- servo motor
- ring
- spool
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of digital control valve controlling oil cylinder speed ring and position ring.It include seat in the plane, active servo drive, active servo motor, actively shaft coupling, valve body, left annular seal space, ball-screw nut, nut connecting shaft, ball-screw, feedback shaft coupling, feedback servo motor, end cap, feedback servo driving, grating, one group of nut connecting shaft angular contact ball bearing, one group of spool angular contact ball bearing, spool, right annular seal space, oil cylinder, one group of bolt and oil sump tank.This utility model uses grating negative feedback, directly can control common oil cylinder, unrestricted to cylinder diameter, the stroke of oil cylinder, digital control valve portion separates with oil cylinder, it is suitable under adverse circumstances using, active servo motor, the transmission of feedback servo motor use conical ring formula gapless driving, and the control accuracy of valve improves.
Description
Technical field
This utility model relates to a kind of control valve, particularly relates to a kind of digital control valve controlling oil cylinder speed ring and position ring.
Background technology
The basic structure of hydraulic valve mainly includes the manipulation device that spool, valve body and driving spool perform relative motion in valve body.Valve
The principal mode of core has guiding valve, cone valve and ball valve；On valve body in addition to the valve body hole having with spool precision-fit or valve seat orifice, it is necessary to
Have external oil pipe into and out of hydraulic fluid port, additionally, according to function need may also have control port and drain tap；Drive spool at valve
The internal device performed relative motion can be man-operated mechanism, it is also possible to be spring or electric magnet, also has and uses hydraulic action exactly
Drive.
Along with the development of computer technology, in hydraulic system, the application of digital technology is constantly expanded.In recent years, due to
The development of microcomputer and raising, particularly single board computer, the price that single-chip microcomputer is cheap, the digitized for hydraulic system provides
Necessary condition, makes digital technology be applied to all many-sides of hydraulic pressure, and also is constantly opening up new application.
The digital control valve used in hydraulic system, can be divided into analog valve, Combined digital valve, Stepping Digital valve and high speed
The types such as switch valve.
Analog valve needs to carry out the conversion repeatedly of digital-to-analogue and modulus, also frequently with pulse-width modulation type control, is a kind of indirect type
Digital control.Digital pressure that Combined digital valve is made up of groups of general solenoid valve and pressure valve or flow valve or stream
Amount valve.
Electromagnetic valve accepts, by the binary voltage signal after voltage amplification of microcomputer coding, to eliminate the D/A conversion equipment of costliness.
Stepping Digital valve is to use stepping motor as electromechanical conversion element, and input signal is converted to become with step number ratio
The valve output signal of example, this kind of valve have repeatable accuracy high, without stagnant ring, without using the advantages such as D/A conversion and linear amplifier,
But owing to its response speed is slow, for requiring the high-accuracy system quickly responded, need to use Analog control mode.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of numeral control controlling oil cylinder speed ring and position ring
Valve processed.
Control oil cylinder speed ring, the digital control valve of position ring includes active servo motor, feedback servo motor, ball-screw spiral shell
Mother, ball-screw, valve body, spool, nut connecting shaft angular contact ball bearing, spool angular contact ball bearing, actively shaft coupling,
Feedback shaft coupling, nut connecting shaft, grating, active servo driving, feedback servo driving, oil cylinder, oil sump tank, upper seat in the plane,
Left annular seal space, right annular seal space and end cap；Upper seat in the plane drives with active servo and is connected, and active servo drives and active servo electricity
Machine is connected, and active servo motor is connected with nut connecting shaft by actively shaft coupling, and actively shaft coupling is positioned at right annular seal space, valve
Core forms rotation by one group of angular contact ball bearing with ball-screw and couples, and ball-screw nut is enclosed within ball-screw, and nut is even
Spindle is enclosed within ball-screw nut and is connected by one group of bolt, and nut connecting shaft two ends are cased with one group of angular contact ball bearing, angle
Contact ball bearing is fixing by end cap and left annular seal space location, and feedback shaft coupling is connected with nut connecting shaft, feedback servo motor with
Feedback shaft coupling is connected, and feedback servo motor drives with feedback servo and is connected, and grating drives with feedback servo and is connected, oil sump tank position
Be connected in the top of valve body and with the main oil return inlet T on valve body, valve body is additionally provided with main oil inlet P, actuator port A and
Actuator port B, grating includes indicating cursor and photoelectric cell part, and the instruction cursor of grating is fixed on the piston rod of oil cylinder,
The photoelectric cell portion of grating is fixed and is driven with feedback servo and is connected.
It is provided with four convex side, i.e. A face, B face, C face, D face on described spool, described body cavity sets
It is equipped with four concave flanks, i.e. A1 face, B2 face, C3 face, D4 face；When oil cylinder is in equilbrium position, described convex
Side and concave flanks cooperation aligned with each other.
Being provided with sealing ring between described active servo motor and right closed chamber, valve body is respectively and between right closed chamber, left closed chamber
It is provided with sealing ring, between left closed chamber and end cap, is provided with sealing ring.
It is provided with oilhole, for connecting the hydraulic oil from hydraulic power source on described valve body.
Described active servo motor, the transmission of feedback servo motor use conical ring formula gapless driving.
The negative feedback type of the digital oil cylinder on market is mechanical type, and this utility model uses grating negative feedback, directly can control
Common oil cylinder is unrestricted to cylinder diameter, the stroke of oil cylinder.Digital control valve portion separates with oil cylinder, is suitable under adverse circumstances using.
And the digital oil cylinder valve core movement on market is rotation adds the mode of moving axially, spool, valve body service life easy to wear is short etc. lacks
Falling into, this utility model spool uses axial displacement, uses special material and Technology for Heating Processing, is greatly improved spool, valve body
Service life.This utility model in order to solve spool, valve body is caused vibrating of cylinder movement by the thermal deformation that oil temperature is affected, logical
Overtesting obtains rational dead band value (take into account precision and change vibration factor with temperature rise).This utility model uses special spool, valve
The manufacturing process of body, solves valve body, spool axial dimension coordinates with radial dimension of, it is achieved total digitalization mill processing, effectively
Control dimensional accuracy, improve the control accuracy of valve.Active servo motor, the transmission of feedback servo motor use conical ring formula gapless
Transmission, improves the control accuracy of valve.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram that this utility model controls the digital control valve of oil cylinder speed ring and position ring；
Fig. 2 is that this utility model controls oil cylinder speed ring and the digital control valve body partial schematic diagram of position ring；
In figure, active servo motor 1, feedback servo motor 2, ball-screw nut 3, ball-screw 4, valve body 5, spool 6,
Nut connecting shaft angular contact ball bearing 7, spool angular contact ball bearing 8, actively shaft coupling 9, feedback shaft coupling 10, nut connect
Axle 11, grating 12, active servo driving 13, feedback servo driving 14, oil cylinder 15, oil sump tank 16, upper seat in the plane 17, a left side
Annular seal space 18, right annular seal space 19, end cap 20 and bolt 21.
Detailed description of the invention
As it is shown in figure 1, the digital control valve controlling oil cylinder speed ring and position ring includes active servo motor 1, feedback servo electricity
Machine 2, ball-screw nut 3, ball-screw 4, valve body 5, spool 6, nut connecting shaft angular contact ball bearing 7, spool corner connection
Touch ball bearing 8, actively shaft coupling 9, feedback shaft coupling 10, nut connecting shaft 11, grating 12, active servo drive 13, anti-
Feedback servo-drive 14, oil cylinder 15, oil sump tank 16, upper seat in the plane 17, left annular seal space 18, right annular seal space 19, end cap 20 and
Bolt 21；Upper seat in the plane 17 drives 13 to be connected with active servo, and active servo drives 13 to be connected with active servo motor 1, main
Dynamic servomotor 1 is connected with nut connecting shaft 11 by actively shaft coupling 9, and actively shaft coupling 9 is positioned at right annular seal space 19,
Spool 6 forms rotation by one group of angular contact ball bearing 8 with ball-screw 4 and couples, and ball-screw nut 3 is enclosed within ball-screw
On 4, nut connecting shaft 11 is enclosed within ball-screw nut 3 and is connected by one group of bolt 21, and nut connecting shaft 11 two ends are overlapped
Having one group of angular contact ball bearing 7, angular contact ball bearing 7 is fixing by end cap 20 and left annular seal space 18 location, feeds back shaft coupling
10 are connected with nut connecting shaft 11, and feedback servo motor 2 is connected with feedback shaft coupling 10, and feedback servo motor 2 is watched with feedback
Clothes drive 14 to be connected, and grating 12 drives 14 to be connected with feedback servo, and oil sump tank 16 is positioned at top and and the valve body of valve body 5
Main oil return inlet T on 5 is connected, and valve body 5 is additionally provided with main oil inlet P, actuator port A and actuator port B, grating 12
Including instruction cursor and photoelectric cell part, the instruction cursor of grating 12 is fixed on the piston rod of oil cylinder 15, the light of grating 12
Electric device portion is fixed and drives 14 to be connected with feedback servo.
Four convex side, i.e. A face, B face, C face, D face, described valve body 5 inner chamber it is provided with on described spool 6
On be provided with four concave flanks, i.e. A1 face, B2 face, C3 face, D4 face；When oil cylinder 15 is in equilbrium position, described
Four convex side and concave flanks cooperation aligned with each other.
As it is shown in figure 1, this utility model is to be provided by pressure oil liquid to drive, it is desirable to device itself has the highest sealing, numeral
Be provided with sealing ring between active servo motor 1 and the right closed chamber 19 of control valve, valve body 5 respectively with right closed chamber 19, Zuo Mi
Envelope is provided with sealing ring between room 18, is provided with sealing ring between left closed chamber 18 and end cap 20.
As it is shown in figure 1, the transmission of active servo motor 1 of the present utility model, feedback servo motor 2 uses conical ring formula gapless
Transmission.
As in figure 2 it is shown, be provided with oilhole on this utility model valve body 5, for connecting the hydraulic oil from hydraulic power source.
The control method of the digital control valve that this utility model controls oil cylinder speed and position comprises the following steps:
1) oil cylinder 15 is in equilbrium position: when spool 6 A, B, C, D face respectively with A1, B1, C1, D1 of valve body 5
In the face of neat, A, B mouth of oil cylinder 15 is now gone to be in closure state, oil cylinder transfixion；
2) control oil cylinder 15 left direction to move: host computer 17 sends and moves to left movement instruction pulse signal through active servo driving
13 amplify control active servo motor 1 turns clockwise, and drives ball screw 4 to turn clockwise through active shaft coupling 9, promotes
Spool 6 moves right, and the most main oil inlet P and actuator port B connect, main oil return inlet T is connected with actuator port A, oil cylinder
15 are in left direction motion；Along with oil cylinder 15 is to left movement, when the instruction cursor of grating 12 gives photoelectric cell part light letter
Number input time, grating 12 output move to left feedback pulse signal, this signal through feedback servo drive 14 amplification control feedback servo electricity
Machine 2 rotates clockwise and drives nut connecting shaft 11 to rotate clockwise through feedback shaft coupling 10, drives ball screw nut 3 up time
Pin rotates so that spool 6 obtains the negative feedback campaign that left direction moves；When moving to left pulse signal and stopping, spool 6 is in
Equilbrium position, now oil cylinder 15 stop motion；
3) control oil cylinder 15 right direction to move: host computer 17 sends and moves to right movement instruction pulse signal through active servo driving
13 amplify control active servo motor 1 rotates counterclockwise, drives ball screw 4 to rotate counterclockwise through active shaft coupling 9, promotes
Spool 6 is moved to the left, and the most main oil inlet P and actuator port A connect, main oil return inlet T is connected with actuator port B, oil cylinder
15 are in right direction motion, along with oil cylinder 15 moves right, when the instruction cursor of grating 12 gives photoelectric cell part light letter
Number input time, grating 12 output move to right feedback pulse signal, this signal through feedback servo drive 14 amplification control feedback servo electricity
Machine 2 rotates counterclockwise and drives nut connecting shaft 11 to rotate counterclockwise through feedback shaft coupling 10, drives ball screw nut 3 inverse time
Pin rotates so that spool 6 obtains the negative feedback campaign that right direction moves；When moving to right pulse signal and stopping, spool 6 is in
Equilbrium position, now oil cylinder 15 stop motion.
Claims (5)
1. the digital control valve controlling oil cylinder speed ring and position ring, it is characterised in that include active servo motor (1), anti-
Feedback servomotor (2), ball-screw nut (3), ball-screw (4), valve body (5), spool (6), nut connect shaft angle
Contact ball bearing (7), spool angular contact ball bearing (8), actively shaft coupling (9), feedback shaft coupling (10), nut connecting shaft
(11), grating (12), active servo drive (13), feedback servo to drive (14), oil cylinder (15), oil sump tank (16), upper machine
Position (17), left annular seal space (18), right annular seal space (19), end cap (20) and bolt (21)；Upper seat in the plane (17) is with main
Dynamic servo-drive (13) is connected, and active servo drives (13) to be connected with active servo motor (1), active servo motor (1)
Being connected with nut connecting shaft (11) by active shaft coupling (9), actively shaft coupling (9) is positioned at right annular seal space (19),
Spool (6) forms rotation by one group of spool angular contact ball bearing (8) with ball-screw (4) and couples, ball-screw nut (3)
Being enclosed within ball-screw (4), nut connecting shaft (11) is enclosed within ball-screw nut (3) and above and passes through one group of bolt (21)
Being connected, nut connecting shaft (11) two ends are cased with one group of nut connecting shaft angular contact ball bearing (7), nut connecting shaft angular contact ball
Bearing (7) is fixing by end cap (20) and left annular seal space (18) location, feedback shaft coupling (10) and nut connecting shaft (11)
Being connected, feedback servo motor (2) is connected with feedback shaft coupling (10), and feedback servo motor (2) drives (14) with feedback servo
Being connected, oil sump tank (16) is positioned at the top of valve body (5) and is connected with the main oil return inlet T on valve body (5), valve body (5)
On be additionally provided with main oil inlet P, actuator port A and actuator port B, grating (12) includes indicating cursor and photoelectric cell portion
Point, the instruction cursor of grating (12) is fixed on the piston rod of oil cylinder (15), the photoelectric cell portion of grating (12)
Fix and drive (14) to be connected with feedback servo.
A kind of digital control valve controlling oil cylinder speed ring and position ring the most according to claim 1, it is characterised in that described
Spool (6) on be provided with four convex side, i.e. A face, B face, C face, D face, on described valve body (5) inner chamber
It is provided with four concave flanks, i.e. A1 face, B2 face, C3 face, D4 face；When oil cylinder (15) is in equilbrium position, institute
The convex side stated and concave flanks cooperation aligned with each other.
A kind of digital control valve controlling oil cylinder speed ring and position ring the most according to claim 1, it is characterised in that described
Be provided with sealing ring between active servo motor (1) and right closed chamber (19), valve body (5) respectively with right closed chamber (19), left
It is provided with sealing ring between closed chamber (18), between left closed chamber (18) and end cap (20), is provided with sealing ring.
A kind of digital control valve controlling oil cylinder speed ring and position ring the most according to claim 1, valve body sets on (5)
It is equipped with hydraulic fluid port P, for connecting the hydraulic oil from hydraulic power source.
A kind of digital control valve controlling oil cylinder speed ring and position ring the most according to claim 1, active servo motor
(1), the transmission of feedback servo motor (2) uses conical ring formula gapless driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402225.4U CN205715033U (en) | 2016-05-05 | 2016-05-05 | A kind of digital control valve controlling oil cylinder speed ring and position ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402225.4U CN205715033U (en) | 2016-05-05 | 2016-05-05 | A kind of digital control valve controlling oil cylinder speed ring and position ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715033U true CN205715033U (en) | 2016-11-23 |
Family
ID=57303128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620402225.4U Withdrawn - After Issue CN205715033U (en) | 2016-05-05 | 2016-05-05 | A kind of digital control valve controlling oil cylinder speed ring and position ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757033A (en) * | 2016-05-05 | 2016-07-13 | 浙江亿洋工具制造有限公司 | Digital control valve and control method thereof for controlling speed ring and position ring of oil cylinder |
| CN113483138A (en) * | 2021-06-16 | 2021-10-08 | 北京华德液压工业集团有限责任公司 | Digital valve with shaft motion controller |
-
2016
- 2016-05-05 CN CN201620402225.4U patent/CN205715033U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757033A (en) * | 2016-05-05 | 2016-07-13 | 浙江亿洋工具制造有限公司 | Digital control valve and control method thereof for controlling speed ring and position ring of oil cylinder |
| CN113483138A (en) * | 2021-06-16 | 2021-10-08 | 北京华德液压工业集团有限责任公司 | Digital valve with shaft motion controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180316 |
|
| AV01 | Patent right actively abandoned |