CN206530565U - The differential changement of spring hydraulic-driven - Google Patents
The differential changement of spring hydraulic-driven Download PDFInfo
- Publication number
- CN206530565U CN206530565U CN201720196140.XU CN201720196140U CN206530565U CN 206530565 U CN206530565 U CN 206530565U CN 201720196140 U CN201720196140 U CN 201720196140U CN 206530565 U CN206530565 U CN 206530565U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- spring
- driving
- valve element
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of differential changement of spring hydraulic-driven, including valve body, valve element and rod assembly, inner chamber is provided with valve body, rod assembly includes pull bar and is coated at the piston body of pull bar lower end；Piston body is arranged at inner chamber and inner chamber is separated into epicoele and cavity of resorption, and epicoele and cavity of resorption are respectively arranged with oil inlet and lower oil inlet, and epicoele is also provided with and communicated with the oil-out that break-make is controlled by valve element；Piston body driving is matched with pull bar lower end and drives piston body to move up and down and drive pull bar to move up and down by piston body upper and lower end face pressure differential, and the upper end of pull bar and valve element driving are with merging for driving valve element to control the opening of one of them in oil-out and upper oil inlet and another closing；Pull bar upper end drives valve element to move up and down by the elastic force of spring assembly；Avoid the occurrence of hair fastener phenomenon, it is ensured that the reliability of commutation, while improving the sensitivity of commutation, pulse more steady.
Description
Technical field
The utility model is related to a kind of spraying equipment changement, and in particular to a kind of spring hydraulic-driven is differential to change
To mechanism.
Background technology
In some spraying equipments, it usually needs set changement to drive piston movement direction, changement is special
The full Pneumatic control air distribution reversing arrangement of pilot-operated type of form；And in the prior art, generally using three spring pressure difference changements (see figure
1), the mechanism is oppositely arranged two springs (including spring 01 and spring 02) in upper end level and realizes that valve element is spacing, perpendicular in lower end
Directly a spring 03 is set to realize pull bar snubber contact, discontinuity card valve easily occurs in the differential changement of three springs
The phenomenon of core, especially when commutating from bottom to top, due to lower spring from both the above spring away from too far away, in processing such as
There is the problem of axiality is inadequate in fruit, just occurs the existing picture of valve element hair fastener, and the valve element of the commutation stress in commutation easily goes out
, easily there is Caton phenomenon, the reliability of changement is relatively low, and dead point situation is more in the situation of existing discontinuity.
Therefore, be solve problem above, it is necessary to which a kind of differential changement of spring hydraulic-driven, can overcome commutation
When valve element stress easily there is the situation of discontinuity, it is to avoid there is hair fastener phenomenon, it is ensured that the reliability of commutation, simultaneously improve
The sensitivity of commutation, pulses more steady.
Utility model content
In view of this, the purpose of this utility model is to overcome defect of the prior art there is provided spring hydraulic-driven pressure
Differential changement, easily there is the situation of discontinuity in valve element stress when overcoming commutation, it is to avoid hair fastener phenomenon occur, it is ensured that
The reliability of commutation, while improving the sensitivity of commutation, pulses more steady.
The differential changement of spring hydraulic-driven of the present utility model, including valve body, valve element and rod assembly, it is described
Inner chamber is provided with valve body, the rod assembly includes pull bar and is coated at the piston body of pull bar lower end；The piston body is set
Epicoele and cavity of resorption are separated into inner chamber and by inner chamber, the epicoele and cavity of resorption are respectively arranged with oil inlet and lower oil inlet, institute
State epicoele and be also provided with and communicated with the oil-out that break-make is controlled by valve element；The piston body driving is matched with pull bar lower end and by work
Cock body upper and lower end face pressure differential driving piston body moves up and down and drives pull bar to move up and down, and upper end and the valve element of the pull bar drive
Move is used to drive valve element to control one of them in oil-out and upper oil inlet to open and another closing with merging；On the pull bar
End drives valve element to move up and down by the elastic force of spring assembly.
Further, the valve element is valve core housing, and the valve body formation connects the installation cavity for installing valve core housing with epicoele,
The valve core housing is placed on installation cavity and by surge motion control oil-out and upper oil inlet break-make in sliding axially；It is described to draw
Bar upper end is coaxially disposed in simultaneously the formation of valve core housing inner circle drives platform in valve core housing, and spring assembly includes the upper spiral for being coated at pull bar
Spring and lower helical spring, pull bar upper end are further fixedly arranged on upper spring seat and lower spring cup, the upper end of the upper helical spring
It is fixed on upper spring seat and lower end can coordinates with driving the upper surface of platform to drive, bullet is fixed in the upper end of the lower helical spring
Simultaneously upper end can coordinate spring abutment with driving the lower surface of platform to drive.
Further, the piston body is the plunger bushing of T-shaped, and the lower end of plunger bushing passes through valve body lower end in a sealing manner,
The pull bar lower end is inserted in plunger bushing from top to bottom, the inner circle of the plunger bushing be fixedly installed for limit pull bar relative to
The locating part that plunger bushing is moved upwards, the interior half dog points of the plunger bushing are provided with for providing pull bar elastic cushion effect upwards
Bottom column spring.
Further, in addition to the positioning component for being axially positioned to valve core housing, the positioning component is included along valve element
The radial direction top pressure of set is in the cylindrical steel ball of valve core housing and driving spring for flexible drive steel ball, the inwall edge of the installation cavity
Radial depressions form the mounting hole for installing driving spring and steel ball, and the steel ball is arranged at the inner port of mounting hole and passed through
It is arranged at the cylindrical positive stop lug boss driving of valve core housing and realizes diametrically reciprocating along installation cavity.
Further, the positioning component is multiple and along the circumferentially distributed of installation cavity, and the positive stop lug boss is annular stop
Boss, the side wall of the annular stop boss is inclined-plane.
The beneficial effects of the utility model are：A kind of differential reversing machine of spring hydraulic-driven disclosed in the utility model
Structure, drives valve element to move up and down, commutates relatively reliable, dead point situation is very by pull bar upper end by the elastic force of spring assembly
It is few；Upper helical spring and lower helical spring are arranged in valve core housing, makes valve element uniform force in commutation, occurs without hair fastener and show
As, it is to avoid easily there is the situation of discontinuity in valve element stress during commutation, it is to avoid hair fastener phenomenon occur, it is ensured that commutation it is reliable
Property, while improving the sensitivity of commutation, pulse more steady.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is three springs pressure difference changement of the prior art；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the structural representation after the utility model commutates.
Embodiment
Fig. 1 is three springs pressure difference changement of the prior art, and Fig. 2 is structural representation of the present utility model, Fig. 3
Structural representation after being commutated for the utility model, as illustrated, the differential commutation of spring hydraulic-driven in the present embodiment
Mechanism；Including valve body 1, valve element 2 and rod assembly, inner chamber is provided with the valve body 1, the rod assembly includes the He of pull bar 3
It is coated at the piston body 4 of the lower end of pull bar 3；The piston body 4 is arranged at inner chamber and inner chamber is separated into epicoele 5 and cavity of resorption 6, described
Epicoele 5 and cavity of resorption 6 are respectively arranged with oil inlet 7 and lower oil inlet 8, and the epicoele 5 is also provided with and communicated with to be controlled to lead to by valve element 2
Disconnected oil-out 9；The driving of piston body 4 is matched with the lower end of pull bar 3 and drives piston by the upper and lower end face pressure differential of piston body 4
Body 4 is moved up and down and drives pull bar 3 to move up and down, and the upper end of the pull bar 3 is matched somebody with somebody with the driving of valve element 2 to be merged for driving valve element 2
One of them in oil-out 9 and upper oil inlet 7 is controlled to open and another closing；The upper end of pull bar 3 passes through spring assembly
Elastic force driving valve element 2 moves up and down；The piston body 4 is rigidly connected with the plunger (not shown) in coating plunger pump, piston
The upper surface size of body 4 be more than positioned at inner chamber lower surface size, because oil pressure is identical in upper and lower chamber 6 so that piston body 4 to
Lower motion, while promoting the plunger in coating plunger pump to move downward, drives pull bar 3 downward after under piston body 4 to minimum point
And moved downward with movable valve plug 2, epicoele 5 is connected with oil-out 9, and upper oil inlet 7 is closed, and makes piston upwards, works as work
Plug, which moves to after top point to drive pull bar 3 and move upwards with movable valve plug 2, to be made, and oil-out 9 is closed and upper oil inlet 7 is closed, real
Existing plunger is moved downward, and reciprocation cycle driving piston body 4 pumps and drives the plunger in coating plunger pump, pull bar 3
Upper end drives valve element 2 to move up and down by the elastic force of spring assembly, commutates relatively reliable, dead point situation is considerably less.
In the present embodiment, the valve element 2 is valve core housing, and the formation of valve body 1 is connected for installing valve core housing with epicoele 5
Installation cavity 10, the valve core housing slide axially in be placed on installation cavity 10 and by surge motion control oil-out 9 and upper oil-feed
7 break-makes of mouth；The upper end of pull bar 3 is coaxially disposed in simultaneously the formation of valve core housing inner circle drives platform 11 in valve core housing, and spring assembly includes
The upper helical spring 12 and lower helical spring 13 of pull bar 3 are coated at, the upper end of pull bar 3 is further fixedly arranged on upper spring seat 12a with
Spring base 13a, the upper end of the upper helical spring 12 is fixed on upper spring seat and lower end can be with driving the upper surface of platform 11 to drive
Coordinate, the upper end of the lower helical spring 13 is fixed on upper spring seat and upper end can coordinate with driving the lower surface of platform 11 to drive；
As illustrated, valve core housing is moved downward after certain position, epicoele 5 is connected with oil-out 9, while the cylindrical seal convexity of valve core housing
Oil inlet 7 in closing；After valve core housing moves certain position upwards, epicoele 5 is connected with upper oil inlet 7, while valve core housing is cylindrical
Seal convexity close oil-out 9；Upper helical spring 12 and lower helical spring 13 are arranged in valve core housing, valve element 2 is being changed
To when uniform force, occur without hair fastener phenomenon.
In the present embodiment, the piston body 4 is the plunger bushing of T-shaped, and the lower end of plunger bushing passes through valve body 1 in a sealing manner
Lower end, the lower end of pull bar 3 is inserted in plunger bushing from top to bottom, and the inner circle of the plunger bushing is fixedly installed for limiting pull bar
3 are provided with for providing upwards pull bar 3 relative to the locating part 14 that plunger bushing is moved upwards, the interior half dog points of the plunger bushing
The bottom column spring 15 of elastic buffer power；Locating part 14 is the detachable T-shaped set for being installed on plunger bushing upper port, pull bar 3
Lower surface is fixedly installed realizes that plunger bushing is pulled downward on to pull bar 3 with T-shaped set cooperation；Set by the interior half dog points of plunger bushing
There is the bottom column spring 15 for providing pull bar 3 elastic cushion effect upwards, overcome the gravity factor of valve element 2 and pull bar 3, protect
Demonstrate,prove submissive stabilization.
In the present embodiment, in addition to the positioning component for being axially positioned to valve core housing, the positioning component includes edge
The radial direction top pressure of valve core housing is described to install in the cylindrical steel ball 16 of valve core housing and driving spring 17 for flexible drive steel ball 16
The inwall of chamber 10 is radially recessed the mounting hole to be formed for installing driving spring 17 and steel ball 16, and the steel ball 16 is arranged at peace
Fill the inner port in hole and back and forth transported along the radial direction of installation cavity 10 by being arranged at the cylindrical driving realization of positive stop lug boss 18 of valve core housing
It is dynamic；The positioning component is multiple and along the circumferentially distributed of installation cavity 10, and the positive stop lug boss 18 is annular stop boss 18, institute
The side wall for stating annular stop boss 18 is inclined-plane, is set by positioning component, and realization is positioned to valve element 2, smooth beneficial to commutating, and is kept away
Exempt from interim card.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (5)
1. a kind of differential changement of spring hydraulic-driven, it is characterised in that：Including valve body, valve element and rod assembly, institute
State and inner chamber is provided with valve body, the rod assembly includes pull bar and is coated at the piston body of pull bar lower end；The piston body is set
It is placed in inner chamber and inner chamber is separated into epicoele and cavity of resorption, the epicoele and cavity of resorption is respectively arranged with oil inlet and lower oil inlet,
The epicoele is also provided with and communicated with the oil-out that break-make is controlled by valve element；The piston body driving is matched with pull bar lower end and passed through
Piston body upper and lower end face pressure differential driving piston body moves up and down and drives pull bar to move up and down, the upper end of the pull bar and valve element
Driving, which matches somebody with somebody to merge, is used to drive one of opening in valve element control oil-out and upper oil inlet and another is closed；The pull bar
Upper end drives valve element to move up and down by the elastic force of spring assembly.
2. the differential changement of spring hydraulic-driven according to claim 1, it is characterised in that：The valve element is valve
Core retainer plate, valve body formation connects the installation cavity for installing valve core housing with epicoele, and the valve core housing slides axially interior be placed on
Installation cavity simultaneously passes through surge motion control oil-out and upper oil inlet break-make；The pull bar upper end be coaxially disposed in valve core housing simultaneously
Valve core housing inner circle formation driving platform, spring assembly includes the upper helical spring and lower helical spring for being coated at pull bar, pull bar upper end
Upper spring seat and lower spring cup are further fixedly arranged on, the upper end of the upper helical spring is fixed on upper spring seat and lower end can be with drive
The upper surface driving of dynamic platform coordinates, and the lower end that upper spring seat and upper end can be with driving platforms is fixed in the upper end of the lower helical spring
Face driving coordinates.
3. the differential changement of spring hydraulic-driven according to claim 1, it is characterised in that：The piston body is
The plunger bushing of T-shaped, the lower end of plunger bushing passes through valve body lower end in a sealing manner, and plunger is inserted in the pull bar lower end from top to bottom
In set, the inner circle of the plunger bushing is fixedly installed for limiting pull bar relative to the locating part that plunger bushing is moved upwards, described
The interior half dog points of plunger bushing are provided with the bottom column spring for providing pull bar elastic cushion effect upwards.
4. the differential changement of spring hydraulic-driven according to claim 2, it is characterised in that：Also include be used for pair
The positioning component that valve core housing is axially positioned, the positioning component includes the radial direction top pressure along valve core housing in the cylindrical steel of valve core housing
Ball and the driving spring for flexible drive steel ball, the inwall of the installation cavity are radially recessed to be formed for installing driving spring
With the mounting hole of steel ball, the steel ball is arranged at the inner port of mounting hole and driven by being arranged at the cylindrical positive stop lug boss of valve core housing
It is dynamic to realize diametrically reciprocating along installation cavity.
5. the differential changement of spring hydraulic-driven according to claim 4, it is characterised in that：The positioning component
To be multiple and along the circumferentially distributed of installation cavity, the positive stop lug boss is annular stop boss, the side wall of the annular stop boss
For inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196140.XU CN206530565U (en) | 2017-03-01 | 2017-03-01 | The differential changement of spring hydraulic-driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196140.XU CN206530565U (en) | 2017-03-01 | 2017-03-01 | The differential changement of spring hydraulic-driven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530565U true CN206530565U (en) | 2017-09-29 |
Family
ID=59918671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720196140.XU Active CN206530565U (en) | 2017-03-01 | 2017-03-01 | The differential changement of spring hydraulic-driven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105203A (en) * | 2017-12-15 | 2018-06-01 | 重庆长江涂装设备有限责任公司 | Pneumatic equipment Quick air-discharge constructs |
-
2017
- 2017-03-01 CN CN201720196140.XU patent/CN206530565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105203A (en) * | 2017-12-15 | 2018-06-01 | 重庆长江涂装设备有限责任公司 | Pneumatic equipment Quick air-discharge constructs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4080107A (en) | Bellows pump and pumping plant for oil-filled electric cables | |
| CN109095161A (en) | A kind of pneumatic buffer gear stops device and its gear stops method | |
| CN206943121U (en) | A kind of integral type automatic reciprocating air cylinder device | |
| CA2605893A1 (en) | Top plunger adapter | |
| CN107178536A (en) | A kind of integral type automatic reciprocating air cylinder device | |
| CN206530565U (en) | The differential changement of spring hydraulic-driven | |
| US3597120A (en) | Injector-recirculation pump | |
| US9133943B2 (en) | Flow path switching valve and discharge control apparatus for fluid material using the same | |
| JP2018525564A (en) | Dual pumping fluid pump | |
| CN2934630Y (en) | High pressure common-rail oil injection pump with cooling oil passage | |
| CN104134557A (en) | Spring operating mechanism buffer for circuit breaker | |
| CN210920257U (en) | Prevent splashing filling and use angle seat valve | |
| CN105257863A (en) | Diaphragm solenoid valve | |
| CN204533038U (en) | Without the automatic reciprocating oil hydraulic cylinder of external control | |
| CN104110564B (en) | Lubricating structure for head of staple gun | |
| US1688978A (en) | Reciprocating pump | |
| CN205013746U (en) | Ball valve is moved to high and flat table flotation of ludox | |
| TW201522778A (en) | Draining device | |
| CN207259126U (en) | A kind of filling mechanism | |
| CN206626207U (en) | A kind of sucker vacuum valve structure for climbing robot | |
| CN207777155U (en) | A kind of filling apparatus | |
| CN205503999U (en) | Medical vim and vigour circulation appearance electromagnetism elder generation top guide | |
| CN203463242U (en) | Hydraulic airless pump | |
| CN208651174U (en) | Associated mode sliding vane rotary vacuum pump is anti-to return oily structure | |
| CN205841878U (en) | A kind of single current is to sleeve adjusting valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |