CN108266414A - A kind of plug-in overload oil compensating valve - Google Patents
A kind of plug-in overload oil compensating valve Download PDFInfo
- Publication number
- CN108266414A CN108266414A CN201810037109.0A CN201810037109A CN108266414A CN 108266414 A CN108266414 A CN 108266414A CN 201810037109 A CN201810037109 A CN 201810037109A CN 108266414 A CN108266414 A CN 108266414A
- Authority
- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid ports
- hole
- spool
- valve seat
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 80
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
Landscapes
- Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of plug-in overload oil compensating valves, valve body including being equipped with P hydraulic fluid ports, and it is slidably connected at the valve seat in the valve body, it is axially arranged with through-hole A along it in the valve seat, it is equipped between the P hydraulic fluid ports and the valve seat in the valve body and forces first spring of the valve seat far from the P hydraulic fluid ports, it is equipped with to limit the hollow swivel nut that the valve seat is detached from valve body in the valve body, the swivel nut is equipped with the T hydraulic fluid ports to cooperate with the P hydraulic fluid ports, spool and the second spring that the spool is forced to be moved to the through-hole A are slidably connected in the swivel nut, and the adjusting rod for adjusting the second spring pretightning force, the shoulder A that position-limiting action is played with spool cooperation is additionally provided in the swivel nut, the spool is equipped with oil-through-hole, in order to which the oil pressure of T hydraulic fluid ports is applied to the upper surface of the valve seat；The valve arrangement is simple, it is easy to process, can be with fast cache surge and quick repairing.
Description
Technical field
The present invention relates to hydraulic valve technical field, specially a kind of plug-in overload oil compensating valve.
Background technology
Domestic production at present and use be used for playing pressurized overflow for the Hydraulic Elements such as oil cylinder and the valve of negative pressure repairing is big
Mostly there are two types of frame modes, and a kind of is to overload the combination valve that overflow valve and negative pressure Fill valve are separately set, and another kind is that have first
The overload overflow valve and negative pressure Fill valve collection of pilot valve are integrated the inserted valve of setting, both valves can play overload protection and
The function of negative pressure repairing；But the former since valve body is set respectively, volume is big, and material utilization amount is more, it can also be because of volume ambassador
Its application is by using space to be limited；Although the latter will overload overflow and repairing is integrated into a valve body, solves volume
Greatly, the problem of material utilization amount is more, but since overload overflow needs are pushed main overflow spool by pilot valve, this structure can be brought
It is slow to overload overflow reaction, acts not sensitive enough.
Invention content
(1) technical problems to be solved
The defects of it is an object of the invention to overcome in the prior art, provide it is a kind of it is simple in structure, easy to process, can be fast
Fast shock absorbing pressure and the plug-in overload oil compensating valve of quick repairing.
(2) technical solution
To achieve the above object, the present invention provides following technical solution：A kind of plug-in overload oil compensating valve, including being equipped with P
The valve body of hydraulic fluid port and the valve seat being slidably connected in the valve body, the valve seat is interior to be axially arranged with through-hole A, the valve along it
It is equipped between the P hydraulic fluid ports and the valve seat in vivo and forces first spring of the valve seat far from the P hydraulic fluid ports, the valve body
Interior to be equipped with for limiting the hollow swivel nut that the valve seat is detached from valve body, the swivel nut is equipped with to cooperate with the P hydraulic fluid ports
T hydraulic fluid ports, be equipped in the swivel nut to control the slidable spool of the through-hole A holes break-make and force the spool to institute
The second spring of through-hole A movements and the adjusting rod for adjusting the second spring pretightning force are stated, is additionally provided in the swivel nut
The shoulder A of position-limiting action is played with spool cooperation；The spool is equipped with oil-through-hole, is acted in order to the oil pressure of T hydraulic fluid ports
To the upper surface of the valve seat.
Through the above technical solutions, the valve, when overloading overflow, the oil pressure of P hydraulic fluid ports is acted on valve seat, and valve seat is upward
It pushes up and offsets with the lower face of swivel nut, while the pressure of P hydraulic fluid ports is applied on spool, when spool because the pressure of P hydraulic fluid ports generates
Upward active force when being enough to overcome the active force of second spring, spool upward sliding, fluid is through P hydraulic fluid ports, through-hole A, logical oil
Hole flows into T hydraulic fluid ports, plays the role of overloading overflow, and after pressure of the P hydraulic fluid ports pressure less than second spring setting, spool is transported downwards
Dynamic through-hole A, the P hydraulic fluid port being re-closing off on valve seat and T hydraulic fluid ports block obstructed.When the pressure of P hydraulic fluid ports is because of hydraulic cylinder or hydraulic pressure horse
When the movement reached generates negative pressure, the fluid of T hydraulic fluid ports is applied to through oil-through-hole on valve seat, and the effect of the first spring is overcome to push
Valve opening seat, fluid flow into P hydraulic fluid ports, carry out repairing.
In further technical solution, the stiffness coefficient of first spring is far smaller than the stiffness coefficient of second spring,
And T hydraulic fluid ports pressure is more than active area of the P hydraulic fluid ports pressure to spool to the active area of valve seat；Overflow is overloaded by above-mentioned setting
Pressure can adjust higher, and when repairing, can just open through-hole A repairings because of the pressure difference of very little.
In further technical solution, the spool is included with shoulder A cylindrical sections coordinate and described in being arranged on
For the ball of the through-hole A break-makes to be controlled to bore section on cylindrical section, the cylindrical section is interior to be axially arranged with the second oil-through-hole along it, described
The side of ball cone section is equipped with the first oil-through-hole connected with second oil-through-hole.
In further technical solution, the T hydraulic fluid ports are arranged on one end far from the valve seat, the tune on the swivel nut
Pole upper edge its be axially arranged with through-hole B.
In further technical solution, it is equipped with bushing in the swivel nut between the spool and adjusting rod, described second
Spring is socketed on the bushing, is equipped with what is contradicted for second spring in one end that it is contacted with the spool on the bushing
Chimb, the other end of the bushing are plugged in the adjusting rod, and being axially arranged with perforative third along it in the bushing leads to oil
Hole.
The convex shoulder B for playing position-limiting action coordinated with the swivel nut is equipped in further technical solution, in the valve body.
In further technical solution, the side of the valve seat is equipped with the annular groove A for placing sealing ring.
In further technical solution, the side of the close P hydraulic fluid ports is equipped with to place sealing ring on the valve body
Annular groove B.
(3) advantageous effect
Compared with prior art, technical scheme of the present invention has the following advantages：The valve when overloading overflow, P hydraulic fluid ports
Oil pressure is acted on valve seat, and valve seat is pushed up upwards and is offseted with the lower face of swivel nut, while the pressure of P hydraulic fluid ports is applied to spool
On, when spool because when the upward active force that the pressure of P hydraulic fluid ports generates is enough to overcome the active force of second spring, spool is upward
It slides, fluid flows into T hydraulic fluid ports through P hydraulic fluid ports, through-hole A, oil-through-hole, plays the role of overloading overflow, when P hydraulic fluid ports pressure is less than second
After the pressure of spring setting, spool moves downward through-hole A, the P hydraulic fluid port being re-closing off on valve seat and T hydraulic fluid ports block it is obstructed.When P oil
For the pressure of mouth because when the movement of hydraulic cylinder or hydraulic motor generates negative pressure, the fluid of T hydraulic fluid ports is applied to valve through oil-through-hole
On seat, the active force of the first spring is overcome to push valve seat open, fluid flows into P hydraulic fluid ports, carries out repairing；Its is simple in structure, easy to process,
It can be with fast cache surge and quick repairing；In addition the stiffness coefficient of first spring is far smaller than the firm of second spring
Coefficient is spent, and T hydraulic fluid ports pressure is more than P hydraulic fluid ports pressure to the active area of spool to the active area of valve seat, passes through above-mentioned setting
The pressure of overload overflow can adjust higher, and when repairing, through-hole A benefits can be just opened because of the pressure difference of very little
Oil.
Description of the drawings
Fig. 1 is a kind of cross-sectional view of plug-in overload oil compensating valve in the present embodiment；
Fig. 2 is the cross-sectional view of valve body in the present embodiment；
Fig. 3 is the cross-sectional view of spool in the present embodiment；
Fig. 4 is the cross-sectional view of swivel nut in the present embodiment.
The corresponding component names of reference numeral are：1. valve body；2. valve seat；3. the first spring；4. swivel nut；5. spool；6. the
Two springs；7. adjusting rod；8. bushing；101.P hydraulic fluid port；102. convex shoulder B；103. annular groove B；201. through-hole A；202. annulars are recessed
Slot A；401.T hydraulic fluid port；402. shoulder A；501. cylindrical section；502. balls bore section；503. second oil-through-holes；504. first oil-through-holes；
701. through-hole B；801. chimb；802. third oil-through-holes.
Specific embodiment
- 4 are please referred to Fig.1, the present invention provides a kind of a kind of plug-in overload oil compensating valve of technical solution, including being equipped with P hydraulic fluid ports
101 valve body 1 and the valve seat 2 being slidably connected in the valve body 1, the valve seat 2 is interior to be axially arranged with through-hole A 201 along it,
Force the valve seat 2 far from the P hydraulic fluid ports 101 the is equipped in the valve body 1 between the P hydraulic fluid ports 101 and the valve seat 2
One spring 3 is equipped in the valve body 1 to limit the hollow swivel nut 4 that the valve seat 2 is detached from valve body 1, remote on the swivel nut 4
One end from the valve seat 2 is equipped with the T hydraulic fluid ports 401 cooperated with each other with the P hydraulic fluid ports 101, is equipped with and is used in the swivel nut 4
The for controlling the slidable spool 5 of the 201 hole break-makes of through-hole A and forcing that the spool 5 moves to the through-hole A 201
Two springs 6 and the adjusting rod 7 for adjusting 6 pretightning force of second spring, 7 upper edge of adjusting rod its be axially arranged with it is logical
Hole B 701 is additionally provided with the shoulder A 402 that position-limiting action is played with the spool 5 cooperation in the swivel nut 4；The spool 5 includes
With the cylindrical sections 501 of the shoulder A 402 cooperations and being arranged on the cylindrical section 501 for controlling the through-hole A 201
The ball cone section 502 of break-make, the cylindrical section 501 is interior to be axially arranged with the second oil-through-hole 503, the side of the ball cone section 502 along it
The first oil-through-hole 504 connected with second oil-through-hole 503 is equipped with, the first oil-through-hole 504 and the second oil-through-hole 503 are set
It is to be applied to the upper surface of the valve seat 2 for the ease of the oil pressure of T hydraulic fluid ports 401.
Bushing 8 is equipped in the swivel nut 4 between the spool 5 and adjusting rod 7, the second spring 6 is socketed in described
The chimb 801 contradicted for second spring 6, institute are equipped on bushing 8, on the bushing 8 in one end that it is contacted with the spool 5
The other end for stating bushing 8 is plugged in the adjusting rod 7, is axially arranged with perforative third oil-through-hole along it in the bushing 8
802。
When overloading overflow, the oil pressure of P hydraulic fluid ports 101 acts on valve seat 2 valve, and by valve seat 2, top is arrived and swivel nut 4 upwards
Lower face offsets, while the pressure of P hydraulic fluid ports 101 is applied on spool 5, when spool 5 because P hydraulic fluid ports 101 pressure generate to
On active force when being enough to overcome the active force of second spring 6,5 upward sliding of spool, fluid through P hydraulic fluid ports 101, through-hole A 201,
First oil-through-hole 504, the second oil-through-hole 503, third oil-through-hole 802, through-hole B 701 flow into T hydraulic fluid ports 401, play overload overflow
Effect, when 101 pressure of P hydraulic fluid ports less than second spring 6 set pressure after, spool 5, which moves downward, to be re-closing off on valve seat 2
Through-hole A 201, P hydraulic fluid port 101 and T hydraulic fluid ports 401 block obstructed.When the pressure of P hydraulic fluid ports 101 is because of the fortune of hydraulic cylinder or hydraulic motor
When movable property gives birth to negative pressure, fluid via through holes B 701, third oil-through-hole 802, the second oil-through-hole 503, first of T hydraulic fluid ports 401 are logical
Oilhole 504 is applied on valve seat 2, the active force of the first spring 3 is overcome to push valve seat 2 open, fluid flows into P hydraulic fluid ports from through-hole A 201
101, carry out repairing.
The stiffness coefficient of first spring 3 is far smaller than the stiffness coefficient of second spring 6, and 401 pressure of T hydraulic fluid ports is to valve
The active area of seat 2 is more than active area of 101 pressure of P hydraulic fluid ports to spool 5；The pressure that overflow is overloaded by above-mentioned setting can be with
What is adjusted is higher, and when repairing, it can just open 201 repairings of through-hole A because of the pressure difference of very little.
The convex shoulder B 102 for playing position-limiting action coordinated with the swivel nut 4 is equipped in the valve body 1；The side of the valve seat 2
Face is equipped with the annular groove A 202 for placing sealing ring；It is equipped with and uses close to the side of the P hydraulic fluid ports 101 on the valve body 1
In the annular groove B 103 for placing sealing ring.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of plug-in overload oil compensating valve, which is characterized in that valve body (1) and the company of slip including being equipped with P hydraulic fluid ports (101)
The valve seat (2) being connected in the valve body (1), the valve seat (2) is interior to be axially arranged with through-hole A (201) along it, and the valve body (1) is interior
Force the valve seat (2) far from the P hydraulic fluid ports (101) first is equipped between the P hydraulic fluid ports (101) and the valve seat (2)
Spring (3), the valve body (1) is interior to be equipped with to limit the hollow swivel nut (4) that the valve seat (2) is detached from valve body (1), the spiral shell
Set (4) is equipped with the T hydraulic fluid ports (401) cooperated with each other with the P hydraulic fluid ports (101), is equipped with to control in the swivel nut (4)
The slidable spool (5) of through-hole A (201) break-make and force the spool (5) to the through-hole A (201) it is mobile the
Two springs (6) and the adjusting rod (7) for adjusting the second spring (6) pretightning force, be additionally provided in the swivel nut (4) with
The shoulder A (402) of position-limiting action is played in spool (5) cooperation；
The spool (5) is equipped with oil-through-hole, in order to which the oil pressure of T hydraulic fluid ports (401) is applied to the upper surface of the valve seat (2).
2. plug-in overload oil compensating valve according to claim 1, which is characterized in that the stiffness coefficient of first spring (3)
The far smaller than stiffness coefficient of second spring (6), and T hydraulic fluid ports (401) pressure is more than P hydraulic fluid ports to the active area of valve seat (2)
(101) pressure is to the active area of spool (5).
3. plug-in overload oil compensating valve according to claim 1, which is characterized in that the spool (5) including with the shoulder A
(402) it the cylindrical section (501) of cooperation and is arranged on the cylindrical section (501) for controlling through-hole A (201) break-make
Ball cone section (502), is axially arranged with the second oil-through-hole (503) along it in the cylindrical section (501), the ball cone section (502)
Side is equipped with the first oil-through-hole (504) connected with second oil-through-hole (503).
4. plug-in overload oil compensating valve according to claim 1, which is characterized in that the T hydraulic fluid ports (401) are arranged on the spiral shell
Cover (4) on far from the valve seat (2) one end, adjusting rod (7) upper edge its be axially arranged with through-hole B (701).
5. plug-in overload oil compensating valve according to claim 4, which is characterized in that in the spool (5) in the swivel nut (4)
Bushing (8) is equipped between adjusting rod (7), the second spring (6) is socketed on the bushing (8), on the bushing (8)
Its one end contacted with the spool (5) is equipped with the chimb (801) contradicted for the second spring (6), the bushing (8)
The other end is plugged in the adjusting rod (7), is axially arranged with perforative third oil-through-hole (802) along it in the bushing (8).
6. plug-in overload oil compensating valve according to claim 1, which is characterized in that be equipped with and the spiral shell in the valve body (1)
Cover the convex shoulder B (102) for playing position-limiting action of (4) cooperation.
7. plug-in overload oil compensating valve according to claim 1, which is characterized in that the side of the valve seat (2) is equipped with and is used for
Place the annular groove A (202) of sealing ring.
8. plug-in overload oil compensating valve according to claim 1, which is characterized in that close to the P hydraulic fluid ports on the valve body (1)
(101) side is equipped with the annular groove B (103) for placing sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037109.0A CN108266414B (en) | 2018-01-15 | 2018-01-15 | Cartridge formula overload oil compensating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037109.0A CN108266414B (en) | 2018-01-15 | 2018-01-15 | Cartridge formula overload oil compensating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266414A true CN108266414A (en) | 2018-07-10 |
| CN108266414B CN108266414B (en) | 2020-09-18 |
Family
ID=62775453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810037109.0A Active CN108266414B (en) | 2018-01-15 | 2018-01-15 | Cartridge formula overload oil compensating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266414B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074155A (en) * | 2021-04-02 | 2021-07-06 | 同济大学 | Negative pressure opening plug-in mounting type oil replenishing valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625680Y (en) * | 2003-07-04 | 2004-07-14 | 天津特精液压股份有限公司 | Plug-in mounting straight moving type dual-purpose safety valve controlling balance inside and outside |
| US20100206405A1 (en) * | 2009-02-19 | 2010-08-19 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Pilot operated check valve |
| CN102878136A (en) * | 2012-09-21 | 2013-01-16 | 广西柳工机械股份有限公司 | Threaded cartridge valve |
| CN103075382A (en) * | 2013-02-04 | 2013-05-01 | 陕西航天动力高科技股份有限公司 | Compact overload oil supplementation valve with variable damping force |
| CN203098472U (en) * | 2013-01-30 | 2013-07-31 | 上海强田液压技术有限公司 | Direct-acting type overload oil-recharging valve |
-
2018
- 2018-01-15 CN CN201810037109.0A patent/CN108266414B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625680Y (en) * | 2003-07-04 | 2004-07-14 | 天津特精液压股份有限公司 | Plug-in mounting straight moving type dual-purpose safety valve controlling balance inside and outside |
| US20100206405A1 (en) * | 2009-02-19 | 2010-08-19 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Pilot operated check valve |
| CN102878136A (en) * | 2012-09-21 | 2013-01-16 | 广西柳工机械股份有限公司 | Threaded cartridge valve |
| CN203098472U (en) * | 2013-01-30 | 2013-07-31 | 上海强田液压技术有限公司 | Direct-acting type overload oil-recharging valve |
| CN103075382A (en) * | 2013-02-04 | 2013-05-01 | 陕西航天动力高科技股份有限公司 | Compact overload oil supplementation valve with variable damping force |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074155A (en) * | 2021-04-02 | 2021-07-06 | 同济大学 | Negative pressure opening plug-in mounting type oil replenishing valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108266414B (en) | 2020-09-18 |
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Effective date of registration: 20200825 Address after: 224700 Yancheng City Jianhu County, Jiangsu Province Economic Development Zone No. 19 North Star Applicant after: Yancheng Baotong Machinery Technology Co.,Ltd. Address before: 315000 No. 510 Chuangyuan Road, Ningbo National High-tech Zone, Zhejiang Province Applicant before: Shao Likun |
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