CN108005980A - For the pressure controlled locking device of hydraulic valve - Google Patents
For the pressure controlled locking device of hydraulic valve Download PDFInfo
- Publication number
- CN108005980A CN108005980A CN201711191003.8A CN201711191003A CN108005980A CN 108005980 A CN108005980 A CN 108005980A CN 201711191003 A CN201711191003 A CN 201711191003A CN 108005980 A CN108005980 A CN 108005980A
- Authority
- CN
- China
- Prior art keywords
- hole
- threaded
- threaded post
- notch
- bar
- 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
- F15B13/027—Check valves
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to one kind to be used for the pressure controlled locking device of hydraulic valve, including the regulating part being threaded in the spring cavity of valve pocket, and regulating part forms support to the spring rear end in spring cavity, it is characterised in that：Regulating part is cylindrical threaded post, the center of threaded post is provided with through hole, through hole is inserted into for convenience of hand-held tool to rotate the polygonal hole of the threaded post, in axial direction perforative tensioner threaded hole is also provided with threaded post, threaded post stage casing is additionally provided with the bar v notch v radially extended, bar v notch v extends radially through tensioner threaded hole and through hole, and being also threaded with tensioner threaded hole can be by the holding screw of the bar v notch v spreading.After locking device locking, use for a long time, regulating part will not shift, and without regulating part is adjusted again, can also hold the spring in setting pressure.
Description
Technical field
It is especially a kind of to be used for the pressure controlled locking device of hydraulic valve, wherein hydraulic pressure the present invention relates to a kind of hydraulic valve
Valve can be pressure-regulating valve, overflow valve or balanced valve.
Background technology
Control valve class is one of main prototype part of hydraulic system, it generally comprises the valve casing which is provided with various hydraulic fluid ports, if
In mobile spool in valve casing, whether realizing that the valve port in valve casing is opened and closed by the movement of spool, to determine oil circuit in valve casing
Flow direction.The movement of general spool is by oil pressure actuated or solenoid-driven or exposed driving, and the reset of spool is then answered by spring
Position, when external force is more than the elastic force of spring, can promote spool mobile and open valve port, after external force diminishes or cancels, spool then exists
Spring effect is lower to reset close port.Therefore existing hydraulic valve can all set an adjusting that the preload pressure of spring can be adjusted
Structure.
Existing adjustment structure generally comprises the adjusting screw (or adjusting threaded rod) being threaded on the exposed junction of valve pocket,
The spring cavity placed for spring is formed in valve pocket, the both ends of spring are held in adjusting screw and spool respectively, so that spool begins
There is the trend of close port eventually.By rotating adjusting screw, in the spring cavity axis under the action of screw-driven in opposing valve sleeves
To movement, and then the preload pressure of spring is adjusted, finally realize the adjusting to spool Opening pressure.
If an Authorization Notice No. is CN106050784B, entitled《A kind of balanced valve》Chinese invention patent, an and Shen
Please publication No. be CN101943187A, entitled《A kind of one-way balance valve of generation braking unlocking ports》, just disclose such one
Kind is used for the pressure controlled structure of hydraulic valve.
Existing adjustment structure is all to be realized by the threaded connection power between adjusting screw and spring cavity to adjusting screw position
The locking put, because of the presence of each component error, the threaded engagement journey between the external screw thread of adjusting screw and the internal thread of spring cavity
Spend limited, after prolonged use, adjusting screw may loosen so that cause hydraulic valve preset pressure do not reach design will
Ask, this just needs maintenance personnel that adjusting screw is adjusted again, after in addition repeatedly adjusting, between adjusting screw and internal thread
Easy to wear, adjusting screw is more easy to loosen.
How to design a can make adjusting screw (or adjust threaded rod) and the firm use being engaged of the internal thread of spring cavity
It is that those skilled in the art need a technical problem solving in the pressure controlled locking device of hydraulic valve.
The content of the invention
The technical problems to be solved by the invention be for above-mentioned state of the art and provide it is a kind of it is simple and reasonable,
Can make the external screw thread of regulating part and the internal thread of spring cavity it is firm be engaged be used for the pressure controlled locking device of hydraulic valve, through this
After locking device locking, use for a long time, regulating part will not shift, and without regulating part is adjusted again, can also make spring
It is maintained at setting pressure.
Technical solution is used by the present invention solves above-mentioned technical problem：One kind is used for the pressure controlled locking of hydraulic valve
Device, including the regulating part being threaded in the spring cavity of valve pocket, regulating part form support to the spring rear end in spring cavity,
It is characterized in that：The regulating part is cylindrical threaded post, and the center of threaded post is provided with through hole, and through hole is for convenience of hand-held tool
Insertion is also provided with tensioner threaded hole in axial direction, threaded post stage casing to rotate the polygonal hole of the threaded post in threaded post
The bar v notch v radially extended is additionally provided with, this v notch v extends radially through the tensioner threaded hole and through hole, the tensioner spiral shell
Also being threaded with pit can be by the holding screw of the bar v notch v spreading.
The height of above-mentioned bar v notch v is 0.8-1.3mm, on the one hand such height can ensure threaded post bar v notch v
Top and the bottom can produce certain deformation, and not influence intensity.When holding screw screws in tensioner spiral shell from threaded post lower face
When pit, holding screw upper end and bar v notch v offset, if continuing to rotate holding screw, bar v notch v is by threadingly column
Axial direction spreading, holding screw is down stubborn more, and the degree of bar v notch v spreading is bigger, i.e. threaded post spreading vertically
Degree is also bigger, can fully ensure threaded post and spring cavity wall is firm is engaged.
Multiple circumferentially equal portions and the oil-through-hole axially penetrated through are also provided with above-mentioned threaded post.In the application scenario having, need
Allow oil by spring cavity below, traditional pressure-regulating device is full-closed structure, it must be opened again in sleeve side wall
There is oil outlet, using after this structure, structure is compacter, and hydraulic oil can more rapidly pass through threaded post.
The length of above-mentioned bar v notch v is more than the radius of threaded post, and bar v notch v is longer so that threaded post is easier to be risen
Open.
The raised boss in middle part of the upper surface of above-mentioned threaded post, the ladder hole run through the boss.Boss
Setting can form the installation of spring spacing, be more suitable for spring base.
Compared with prior art, the advantage of the invention is that：Threaded post is threaded in spring cavity, threaded post it is polygon
Shape hole is inserted into easy to spanner and drives threaded post to screw in, until spring is compressed to position, meets design requirement, then again by tightening
Screw is screwed in tensioner threaded hole, because of the presence of bar v notch v so that and threaded post has certain deformability, and in holding screw
Extruding under, two parts up and down of the bar v notch v of threaded post by spreading, external screw thread and spring cavity on threaded post perisporium it is interior
Threaded engagement is more firm, finally so that threaded post is secured firmly in spring cavity, will not be shifted using threaded post for a long time, also
So that hydraulic valve pressure is adjusted meets design requirement all the time, without being subsequently adjusted again；In addition, the ladder in threaded post leads to
Hole and bar v notch v are for hydraulic oil by and flowing out from the lower port of spring cavity, can so connect in the lower port of spring cavity
Oil pipe is picked out, it is suitable as check valve use, and can simplify one-way valve structures.
Brief description of the drawings
Fig. 1 is the structure sectional view of the embodiment of the present invention；
Fig. 2 is the positive dimensional structure diagram of threaded post in the embodiment of the present invention；
Fig. 3 is the back side dimensional structure diagram of threaded post in the embodiment of the present invention；
Fig. 4 is the top view of threaded post in the embodiment of the present invention；
Fig. 5 is the sectional view along A-A of Fig. 4.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
It is a preferred embodiment of the present invention as shown in Fig. 1~5.
One kind is used for the pressure controlled locking device of hydraulic valve, including the adjusting being threaded in the spring cavity 2 of valve pocket 1
Part, regulating part form support to 4 rear end of spring in spring cavity 2, and the other end of spring 4 is supported on spool 10.
The improvement of the present invention is：Regulating part is cylindrical threaded post 3, and the thickness of threaded post 3 is less than threaded post 3
Diameter, the center of threaded post 3 is provided with through hole 5, and through hole 5 is inserted into for convenience of hand-operated tools to rotate the polygon of the threaded post 3
Shape hole, tensioner threaded hole 6 in axial direction is also provided with threaded post 3,3 stage casing of threaded post is additionally provided with the bar shaped radially extended and lacks
Mouth 7, this v notch v 7 extends radially through tensioner threaded hole 6 and through hole 5, and being also threaded with tensioner threaded hole 6 can be by bar shaped
The holding screw 8 of 7 spreading of notch.
The height H of bar v notch v is 0.8-1.3mm.On the one hand such height can ensure the bar v notch v 7 of threaded post 3
Top and the bottom can produce certain deformation, and not influence intensity
Multiple circumferentially equal portions and the oil-through-hole 9 axially penetrated through are also provided with threaded post 3.The length of bar v notch v 7 is more than
The radius of threaded post 3.
The raised boss 31 in middle part of the upper surface of threaded post 3, through hole 5 run through the boss 31
The operation principle and process of the present invention is as follows.
Threaded post 3 is threaded in spring cavity 2, and the polygonal hole of threaded post 3 is inserted into easy to spanner and drives threaded post 3
Spring cavity 2 is screwed in, until spring 4 is compressed to position, meets design requirement, holding screw 8 is then screwed in into tensioner threaded hole 6 again
In, because of the presence of bar v notch v 7 so that threaded post 3 has certain deformability, and under the extruding of holding screw 8, threaded post
3 vertically by spreading, the external screw thread on 3 perisporium of threaded post be engaged with the internal thread of spring cavity 2 it is more firm, finally so that threaded post
3 are secured firmly in spring cavity 2, will not be shifted over for a long time using threaded post 3 with respect to spring cavity 2, also allow for hydraulic pressure
Valve pressure is adjusted meets design requirement all the time, without being subsequently adjusted again；In addition, through hole 5, oil-through-hole 9 in threaded post 3
And bar v notch v 7 for hydraulic oil by and flowing out from the lower port of spring cavity 2, can so connect in the lower port of spring cavity 2
Oil pipe is picked out, it is suitable as check valve use, and can simplify one-way valve structures.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.It will additionally be appreciated that as long as there is no in structure
Conflict, the feature in each embodiment can be combined with each other, and the combined type feature formed still falls within the scope of the present invention
It is interior.The invention is not limited in specific embodiment disclosed herein, but all skills including falling within the scope of the appended claims
Art scheme.
Claims (5)
1. one kind is used for the pressure controlled locking device of hydraulic valve, including the tune being threaded in the spring cavity (2) of valve pocket (1)
Part is saved, regulating part forms support to spring (4) rear end in spring cavity (2), it is characterised in that：The regulating part is cylindrical
Threaded post (3), the center of threaded post (3) is provided with through hole (5), and through hole (5) is inserted into for convenience of hand-held tool to rotate the threaded post
(3) polygonal hole, tensioner threaded hole (6) in axial direction is also provided with threaded post (3), threaded post (3) stage casing is additionally provided with
The bar v notch v (7) radially extended, this v notch v (7) extends radially through the tensioner threaded hole (6) and through hole (5), described
Also being threaded with tensioner threaded hole (6) can be by the holding screw (8) of bar v notch v (7) spreading.
2. according to claim 1 be used for the pressure controlled locking device of hydraulic valve, it is characterised in that：The bar v notch v
Height (H) be 0.8-1.3mm.
3. according to claim 1 be used for the pressure controlled locking device of hydraulic valve, it is characterised in that：The threaded post
(3) multiple circumferentially equal portions and the oil-through-hole (9) axially penetrated through are also provided with.
4. according to claim 3 be used for the pressure controlled locking device of hydraulic valve, it is characterised in that：The bar v notch v
(7) length is more than the radius of threaded post (3).
5. according to claim 1 be used for the pressure controlled locking device of hydraulic valve, it is characterised in that：The threaded post
(3) the raised boss in middle part (31) of upper surface, the through hole (5) run through the boss (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191003.8A CN108005980A (en) | 2017-11-24 | 2017-11-24 | For the pressure controlled locking device of hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191003.8A CN108005980A (en) | 2017-11-24 | 2017-11-24 | For the pressure controlled locking device of hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005980A true CN108005980A (en) | 2018-05-08 |
Family
ID=62053416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711191003.8A Pending CN108005980A (en) | 2017-11-24 | 2017-11-24 | For the pressure controlled locking device of hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005980A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447885A (en) * | 2000-08-23 | 2003-10-08 | 吉塞拉·韦伯 | Hydraulic valve |
| CN201386841Y (en) * | 2009-04-09 | 2010-01-20 | 上海立新液压有限公司 | Tube-type back pressure valve |
| CN201763767U (en) * | 2010-09-08 | 2011-03-16 | 缙云县高新机械制造有限公司 | Lock nut |
| CN202108963U (en) * | 2011-02-10 | 2012-01-11 | 北京中清能发动机技术有限公司 | Thrust adjusting element and combustion engine and compression engine thereof |
| CN202833534U (en) * | 2012-07-30 | 2013-03-27 | 无锡华宇精密机械有限公司 | Piston rod nut for oil-pressure air cylinder provided with limiting mechanism |
| CN106402441A (en) * | 2016-10-26 | 2017-02-15 | 华东矿用设备有限公司 | Safety valve for hydraulic system of hydraulic support |
-
2017
- 2017-11-24 CN CN201711191003.8A patent/CN108005980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447885A (en) * | 2000-08-23 | 2003-10-08 | 吉塞拉·韦伯 | Hydraulic valve |
| CN201386841Y (en) * | 2009-04-09 | 2010-01-20 | 上海立新液压有限公司 | Tube-type back pressure valve |
| CN201763767U (en) * | 2010-09-08 | 2011-03-16 | 缙云县高新机械制造有限公司 | Lock nut |
| CN202108963U (en) * | 2011-02-10 | 2012-01-11 | 北京中清能发动机技术有限公司 | Thrust adjusting element and combustion engine and compression engine thereof |
| CN202833534U (en) * | 2012-07-30 | 2013-03-27 | 无锡华宇精密机械有限公司 | Piston rod nut for oil-pressure air cylinder provided with limiting mechanism |
| CN106402441A (en) * | 2016-10-26 | 2017-02-15 | 华东矿用设备有限公司 | Safety valve for hydraulic system of hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180508 |
|
| WD01 | Invention patent application deemed withdrawn after publication |