CN107939761A - One kind is used for the pressure controlled locking device of hydraulic valve - Google Patents
One kind is used for the pressure controlled locking device of hydraulic valve Download PDFInfo
- Publication number
- CN107939761A CN107939761A CN201711193651.7A CN201711193651A CN107939761A CN 107939761 A CN107939761 A CN 107939761A CN 201711193651 A CN201711193651 A CN 201711193651A CN 107939761 A CN107939761 A CN 107939761A
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- China
- Prior art keywords
- hole
- threaded
- threaded post
- notch
- tensioner
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (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 ladder hole, the big hole portion of ladder 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 is additionally provided with the bar v notch v for radially extending and axially penetrating through, bar v notch v runs through tensioner threaded hole and ladder 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 ladder hole, ladder hole it is big
The perforative threaded post end face of hole portion institute is first end face, and the perforative threaded post end face of small hole portion institute of ladder hole is second end
Face, the big hole portion of ladder hole are inserted into rotate the polygonal hole of the threaded post for convenience of hand-operated tools, are also provided with threaded post
In axial direction perforative tensioner threaded hole, threaded post are additionally provided with the bar v notch v for radially extending and axially penetrating through, which lacks
Mouth runs through tensioner threaded hole and ladder hole, and being also threaded with the tensioning threaded hole can be by the bar v notch v spreading
Holding screw.
The lower part of above-mentioned holding screw has one end gradual increased conical surface section of diameter from bottom to top, the tensioner threaded hole
The middle part of internal perisporium has annular shoulder block to form the necking coordinated with the conical surface section, is revolved in holding screw at first end face
In the state of entering in tensioner threaded hole, the conical surface section is through necking with by bar v notch v spreading.It is in this way, more past in holding screw
Lower to twist, conical surface Duan Huiyue spreading bar v notch vs, the periphery of threaded post is by spreading so that holding screw, which has, more down twists, bar shaped
The degree of notch spreading is bigger, i.e. the degree of the periphery spreading of threaded post is also bigger, can fully ensure that in threaded post and spring cavity
The firm occlusion of wall.
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, while is connected with oil-through-hole one of them described.Bar shaped
Notch is longer so that threaded post is easier by spreading.
The raised boss in middle part of the second end face of above-mentioned threaded post, the ladder hole run through the boss.Boss
Setting the installation of spring can be formed 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, the periphery of threaded post by spreading, the external screw thread on threaded post perisporium be engaged with the internal thread of spring cavity it is more firm, most
Eventually so that threaded post is secured firmly in spring cavity, it will not be shifted using threaded post for a long time, also allow for hydraulic valve pressure tune
Section meets design requirement all the time, without being subsequently adjusted again；In addition, ladder hole and bar v notch v in threaded post for
Hydraulic oil from the lower port of spring cavity by and flowing out, so can connect flowline in the lower port of spring cavity, it is suitable as
Used for check valve, and one-way valve structures can be simplified.
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 ladder hole 5, and perforative 3 end faces of threaded post of the institute of big hole portion 51 of ladder hole 5 are the
End face 31, first end face 31 is towards the openend of spring cavity 2, perforative 3 end faces of threaded post of the institute of small hole portion 52 of ladder hole 5
For second end face 32, second end face 32 is inserted into rotate towards spring 4, the big hole portion 51 of ladder hole 5 for convenience of hand-operated tools
The polygonal hole of the threaded post 3, is also provided with axial direction perforative tensioner threaded hole 6, threaded post 3 in threaded post 3 and is additionally provided with
The bar v notch v 7 for radially extending and axially penetrating through, this v notch v 7 run through tensioner threaded hole 6 and ladder hole 5, bar v notch v 7
Center line and tensioner threaded hole 6 and ladder hole 5 axis in the same plane, being also threaded with tensioner threaded hole 6 can
By the holding screw 8 of 7 spreading of bar v notch v.
The lower part of holding screw 8 has one end gradual increased conical surface section 81 of diameter from bottom to top, 6 inner circumferential of tensioner threaded hole
The middle part of wall has annular shoulder block 61 to form the necking 62 coordinated with the conical surface section 81, in holding screw 8 from first end face
In the state of being screwed at 31 in tensioner threaded hole 6, the conical surface section 81 is through necking 62 with by 7 spreading of bar v notch v.
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, while connected with oil-through-hole one of them described 9.
The raised boss 33 in middle part of the second end face 32 of threaded post 3, ladder hole 5 run through the boss 33
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 periphery 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, ladder hole 5 in threaded post 3, logical
Oilhole 9 and bar v notch v 7 for hydraulic oil by, and flowed out from the lower port of spring cavity 2, so can be under spring cavity 2
Port connects flowline, 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 ladder hole (5), the perforative spiral shell of big hole portion (51) institute of ladder hole (5)
Line column (3) end face is first end face (31), and perforative threaded post (3) end face of small hole portion (52) institute of ladder hole (5) is second
End face (32), the big hole portion (51) of ladder hole (5) are inserted into for convenience of hand-held tool to rotate the polygonal hole of the threaded post (3),
In axial direction perforative tensioner threaded hole (6) is also provided with threaded post (3), threaded post (3), which is additionally provided with, to be radially extended simultaneously axially
Perforative bar v notch v (7), this v notch v (7) run through the tensioner threaded hole (6) and ladder hole (5), the tensioner spiral shell
Also being threaded with pit (5) 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 holding screw
(8) lower part has one end gradual increased conical surface section (81) of diameter from bottom to top, in tensioner threaded hole (6) internal perisporium
Portion has annular shoulder block (61) to form the necking (62) coordinated with the conical surface section (81), in holding screw (8) from first end
In the state of face (31) place is screwed in tensioner threaded hole (6), the conical surface section (81) is through necking (62) with by bar v notch v (7)
Spreading.
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), while is connected with oil-through-hole one of them described (9).
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 (33) of second end face (32), the ladder hole (5) run through the boss (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193651.7A CN107939761A (en) | 2017-11-24 | 2017-11-24 | One kind is used for the pressure controlled locking device of hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193651.7A CN107939761A (en) | 2017-11-24 | 2017-11-24 | One kind is used for the pressure controlled locking device of hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939761A true CN107939761A (en) | 2018-04-20 |
Family
ID=61948762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193651.7A Pending CN107939761A (en) | 2017-11-24 | 2017-11-24 | One kind is used for the pressure controlled locking device of hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939761A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077442A1 (en) * | 1999-06-15 | 2000-12-21 | Sparkling Krämer Gmbh | Refillable co2 gas cylinder and method of filling the same |
| CN201322121Y (en) * | 2008-11-28 | 2009-10-07 | 蒋浩亮 | Pressure adjustable safety valve |
| CN201386841Y (en) * | 2009-04-09 | 2010-01-20 | 上海立新液压有限公司 | Tube-type back pressure valve |
| CN202520724U (en) * | 2012-05-08 | 2012-11-07 | 宁海永博文体用品有限公司 | Expansion locking device |
| CN204921619U (en) * | 2015-07-30 | 2015-12-30 | 河南柴油机重工有限责任公司 | Novel screw |
| RU2606471C1 (en) * | 2015-10-08 | 2017-01-10 | Общество с ограниченной ответственностью "Электро" | Quick-detachable wellhead check valve |
| 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 CN201711193651.7A patent/CN107939761A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077442A1 (en) * | 1999-06-15 | 2000-12-21 | Sparkling Krämer Gmbh | Refillable co2 gas cylinder and method of filling the same |
| CN201322121Y (en) * | 2008-11-28 | 2009-10-07 | 蒋浩亮 | Pressure adjustable safety valve |
| CN201386841Y (en) * | 2009-04-09 | 2010-01-20 | 上海立新液压有限公司 | Tube-type back pressure valve |
| CN202520724U (en) * | 2012-05-08 | 2012-11-07 | 宁海永博文体用品有限公司 | Expansion locking device |
| CN204921619U (en) * | 2015-07-30 | 2015-12-30 | 河南柴油机重工有限责任公司 | Novel screw |
| RU2606471C1 (en) * | 2015-10-08 | 2017-01-10 | Общество с ограниченной ответственностью "Электро" | Quick-detachable wellhead check valve |
| 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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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180420 |