CN104165166B - A kind of compact telescopic oil cylinder switching valve group - Google Patents
A kind of compact telescopic oil cylinder switching valve group Download PDFInfo
- Publication number
- CN104165166B CN104165166B CN201410369560.4A CN201410369560A CN104165166B CN 104165166 B CN104165166 B CN 104165166B CN 201410369560 A CN201410369560 A CN 201410369560A CN 104165166 B CN104165166 B CN 104165166B
- Authority
- CN
- China
- Prior art keywords
- switching valve
- runner
- actuator port
- valve rod
- control
- 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.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of compact telescopic oil cylinder switching valve group, including valve body, the first actuator port being located on valve body, second actuator port, control port, unloading port, oil return opening and oil-in, the control runner being located in valve body, off-load runner, first platform flow channel, back work runner, second platform flow channel, oil return runner, cavity, solenoid directional control valve and reverse check valve, the switching valve rod being installed in cavity, control the spring control assembly that switching valve rod moves along cavity, solenoid directional control valve is arranged on the control end of switching valve rod, and connect with control port by controlling runner, connected with unloading port by off-load runner, reversely check valve is arranged on the second platform flow channel.The present invention has Highgrade integration, advantage without pipe and densification.
Description
Technical field
The present invention relates to switch valve technology field, in particular, particularly to a kind of compact telescopic oil cylinder switching valve group.
Background technology
Along with the development of China's engineering machinery grows, especially for autocrane, user and main frame unit to car load
The requirement of hydraulic system is more and more higher.The switching control valve of telescopic oil cylinder is proposed Highgrade integration simultaneously, without pipe and compact
The requirement of type.There is provided a kind of telescopic oil cylinder switching valve group to this end, necessary, meet above-mentioned requirements.
Summary of the invention
It is an object of the invention to provide a kind of Highgrade integration and the compact telescopic oil cylinder without pipe switches valve group.
In order to solve posed problems above, the technical solution used in the present invention is:
A kind of compact telescopic oil cylinder switching valve group, including valve body, the first actuator port of also including being located on valve body, second
Actuator port, control port, unloading port, oil return opening and oil-in, the control runner being located in valve body, off-load runner,
One platform flow channel, back work runner, the second platform flow channel, oil return runner, cavity, solenoid directional control valve and reverse check valve,
The switching valve rod being installed in cavity, controls the spring control assembly that described switching valve rod moves along cavity, and described electromagnetism changes
It is arranged on the control end of switching valve rod to valve, and connects with control port, by off-load runner and unloading port by controlling runner
Connection, described first platform flow channel connects the first actuator port and oil-in, described second workflow when switching valve rod work
Road connects the second actuator port and reverse check valve, described back work flow passage the second actuator port and oil return opening；And
In switching valve rod commutation transient process, oil-in connects the first actuator port and the second actuator port simultaneously, changes at switching valve rod
To during to extreme position, oil-in only connects the second actuator port, and described switching valve rod cuts off back work runner.
According to a preferred embodiment of the invention: described switching valve rod includes bar portion, the first stop part and the second stop part, institute
State the first stop part and the second stop part is corresponding with the first actuator port and the second actuator port respectively, and in switching valve rod commutation
In transient process, oil-in connects the first actuator port and the second working oil by the first stop part and the second stop part simultaneously
Mouthful.
According to a preferred embodiment of the invention: on described back work runner, be also equipped with the first filter screen damping being serially connected
With the second filter screen damping.
According to a preferred embodiment of the invention: described spring controls assembly and includes end cap, Limit screw, end cap spring and bullet
Spring abutment, described end cap is installed on one end of valve body, and described Limit screw is installed in end cap, and described spring socket sleeve is located at switching
The end of valve rod, one end of described Limit screw contacts with the end of switching valve rod, and spacing spiral shell is located at by described end cap spring housing
On bar, and contact with spring base.
According to a preferred embodiment of the invention: be additionally provided with baffle plate between described end cap and valve body, between described end cap and baffle plate
Sealed by an O RunddichtringO, sealed by an O between described baffle plate and valve body.
According to a preferred embodiment of the invention: be positioned on the valve body of described switching valve rod the other end and be also equipped with and switch valve
The ED plug screw that pole pair is answered.
According to a preferred embodiment of the invention: described reverse check valve and solenoid directional control valve all use screw thread inserting type structure to pacify
It is loaded on valve body.
Compared with prior art, the beneficial effects of the present invention is:
1, the present invention is when oil inlet P connects the second actuator port B, and switching valve rod disconnects the second platform flow channel and auxiliary work
Make runner, due to the release of damping flow, the most whole telescopic oil cylinder mechanism causes that efficiency is low, speed is slow when stretching out；
2, it is provided with control end cap portion relative to current like product, and the control end of the present invention is integrated in valve body,
Greatly reduce the volume of valve group, make structure the compactest；
3, the setting that the present invention is damped by filter screen, improves the anti-soil of valve group inside, improves the service life of product；
4, the present invention uses the structure of screw thread inserting type, decreases the volume of valve group, makes valve group the smallest and the most exquisite, it is simple to maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1. for the structural representation of the compact telescopic oil cylinder switching valve group of the present invention.
Fig. 2. for the top view of the compact telescopic oil cylinder switching valve group of the present invention.
Fig. 3. for the front view of the compact telescopic oil cylinder switching valve group of the present invention.
Fig. 4. for the sectional view in C-C direction in Fig. 3 of the present invention.
Fig. 5. for the hydraulic schematic diagram of the compact telescopic oil cylinder switching valve group of the present invention.
Description of reference numerals: 1, valve body, 2, baffle plate, 3, end cap, 4, soket head cap screw, 5 and cap, 6, cap-type flat
Cap, 7, reverse check valve, 8, smash block up, the 9, first filter screen damping, the 10, second filter screen damping, 11, spacing spiral shell
Bar, 12, end cap spring, 13, spring base, 14, O RunddichtringO, 15, O, 16, valve rod, 17, electromagnetism changes
To valve, 18, ED plug screw, 19, control runner, 20, off-load runner, the 21, first platform flow channel, 22, back work stream
Road, the 23, second platform flow channel, 24, oil return runner, 25, bar portion, the 26, first stop part, the 27, second stop part,
28, cavity.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Embodiment
Refering to shown in Fig. 1 to Fig. 5, a kind of compact telescopic oil cylinder switching valve group that the present invention provides, including valve body 1, also
Including the first actuator port A being located on valve body 1, the second actuator port B, control port X, unloading port Y, oil return inlet T
And oil inlet P, the control runner 19 being located in valve body 1, off-load runner the 20, first platform flow channel 21, back work stream
Road the 22, second platform flow channel 23, oil return runner 24, cavity 28, solenoid directional control valve 17 and reverse check valve 7, be installed on
Switching valve rod 16 in cavity 28, the spring that the switching valve rod 16 described in control moves along cavity 28 controls assembly, institute
State solenoid directional control valve 17 be arranged on switching valve rod 16 control end, and by control runner 19 connect with control port X,
Connected with unloading port Y by off-load runner 20, described reverse check valve 7 is arranged on the second platform flow channel 23, institute
The first platform flow channel 21 stated connects the first actuator port A and oil inlet P, described second when switching valve rod 16 and working
Platform flow channel 23 connects the second actuator port B and reverse check valve 7, and described back work runner 22 connects the second work
Hydraulic fluid port B and oil return inlet T；And commutating in transient process at switching valve rod 16, oil inlet P connects the first actuator port A simultaneously
With the second actuator port B, when switching valve rod 16 and commutating to extreme position, oil inlet P only connects the second actuator port B,
Described switching valve rod 16 cuts off back work runner 22.
Refering to shown in Fig. 1, in the present invention, described switching valve rod 16 includes bar portion the 25, first stop part 26 and second
Stop part 27, the first described stop part 26 and the second stop part 27 respectively with the first actuator port A and the second actuator port
B is corresponding, and commutates in transient process at switching valve rod 16, and oil inlet P is stopped by the first stop part 26 and second simultaneously
Portion 27 connects the first actuator port A and the second actuator port B.
In the present invention, described back work runner 22 is also equipped with the first filter screen damping 9 and second being serially connected
Filter screen damping 10, and damp the outside of 9 at the first filter screen and be additionally provided with smash and block up 8.
In the present invention, described spring controls assembly and includes end cap 3, Limit screw 11, end cap spring 12 and spring base
13, described end cap 3 is installed on one end of valve body 1, and described Limit screw 11 is installed in end cap 3, described bullet
Spring abutment 13 is set in the end of switching valve rod 16, and one end of described Limit screw 11 connects with the end of switching valve rod 16
Touching, described end cap spring 12 is sheathed on Limit screw 11, and contacts with spring base 13；And Limit screw 11
The other end by and cap 5 and the flat cap of cap-type 6 link together.
In the present invention, being additionally provided with baffle plate 2 between described end cap 3 and valve body 1, total is to pass through soket head cap screw
4 link together, and are sealed by an O RunddichtringO 14 between described end cap 3 and baffle plate 2, described baffle plate 2 with
Sealed by an O 15 between valve body 1.
In the present invention, it is positioned on the valve body 1 of described switching valve rod 16 the other end and is also equipped with to switch valve rod 16 right
The ED plug screw 18 answered.
As preferably, the solenoid directional control valve 17 in the present invention is two-position three way magnetic valve.
As preferably, heretofore described reverse check valve 7 and solenoid directional control valve 17 all use screw thread inserting type structure to pacify
It is loaded on valve body 1, is greatly reduced the volume of valve group, make the volume of valve group reach 155X 116X 60 (mm).
The operation principle of the compact telescopic oil cylinder switching valve group of the present invention is:
Oil inlet P connects the corresponding actuator port of car banked direction control valves；And the first actuator port A and the second actuator port B is respectively
(wherein the first actuator port A connects I oil cylinder, the second actuator port B and connects No. II to connect the rodless cavity of two telescopic oil cylinders
Oil cylinder)；Control port X connects constant pressure oil source；Unloading port Y connects without back pressure runner oil sump tank；Oil return inlet T takes back oil runner and returns
Fuel tank.
When solenoid directional control valve 17 must not be electric, and switching valve rod 16 does not commutates under the active force of end cap spring 12, oil inlet P
Fluid by switching valve rod 16 restriction enter left-hand component platform flow channel by the first actuator port A lead to I oil cylinder without
Bar chamber, it is achieved I oil cylinder extending action, becomes big when I oil cylinder stretches out due to central canal volume simultaneously, causes central canal
Negative pressure inside occur, now the fluid of oil return runner platform flow channel on the right side of Fill valve enters supplements center through the second actuator port B
Pipe, prevents vacuum phenomenon and damages oil cylinder；When I cylinder rod chamber oil-feed, rodless cavity fluid is by the first working oil
Mouth A leads to oil inlet P, through banked direction control valves oil sump tank, it is achieved I oil cylinder retract action；Simultaneously when I oil cylinder is retracted due to
Central canal volume diminishes, and occurs supercharging phenomenon in causing central canal, and now pressure oil liquid throttles through valve rod through right side platform flow channel
Mouth, to auxiliary flow, is discharged into fuel tank by double filter screen damping through T mouth, prevents constantly promoting of pressure from damaging oil cylinder and causing
The misoperation that II oil cylinder stretches out；
When solenoid directional control valve 17 obtains electric, the pressure signal oil of constant pressure oil source enters switching valve rod 16 through solenoid directional control valve 17
Controlling chamber, switching valve rod 16, under controlling pressure effect, overcomes the spring force of end cap spring 12 to commutate, in commutation process,
In order to prevent compression shock, due to the first stop part the 26, second stop part 27 and effect in bar portion 25, oil-in can be realized
P also connects the second actuator port B while leading to the first actuator port A, when switching valve rod 16 and commutating to limit position, and oil-feed
Mouthful P only connects the second actuator port B, (and the platform flow channel of the second actuator port B disconnects with back work runner, can in case
Only double filter screen damping discharges part fluid and affects and stretch out speed), enter II oil cylinder, it is achieved stretching out of II oil cylinder is dynamic
Make.
It is an advantage of the current invention that: when oil inlet P connects the second actuator port B, switching valve rod 16 disconnects the second work
Runner and back work runner, the most whole telescopic oil cylinder mechanism when stretching out due to damping flow release cause efficiency low,
Speed is slow；It is provided with control end cap portion relative to current like product, and the control end of the present invention is integrated in valve body,
Greatly reduce the volume of valve group, make structure the compactest；The setting that the present invention is damped by filter screen, improves the anti-of valve group
Dirt inside, improves the service life of product；The present invention uses the structure of screw thread inserting type, decreases the volume of valve group, makes
Valve group is the smallest and the most exquisite, it is simple to maintenance.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not limited by above-described embodiment
System, the change made, modifies, substitutes, combines, simplifies under other any spirit without departing from the present invention and principle,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (5)
1. a compact telescopic oil cylinder switching valve group, including valve body (1), it is characterised in that: also include being located at valve body (1)
On the first actuator port (A), the second actuator port (B), control port (X), unloading port (Y), oil return opening (T)
With oil-in (P), the control runner (19) being located in valve body (1), off-load runner (20), the first platform flow channel (21),
Back work runner (22), the second platform flow channel (23), oil return runner (24), cavity (28), solenoid directional control valve (17)
With reverse check valve (7), the switching valve rod (16) being installed in cavity (28), control described switching valve rod (16) edge
The spring cavity (28) movement controls assembly, and described solenoid directional control valve (17) is arranged on the control of switching valve rod (16)
End, and connect with control port (X), by off-load runner (20) with unloading port (Y) even by controlling runner (19)
Logical, described reverse check valve (7) is arranged on the second platform flow channel (23), and described first platform flow channel (21) is being cut
Connecting the first actuator port (A) and oil-in (P) when changing valve rod (16) work, described second platform flow channel (23) is even
Logical second actuator port (B) and reverse check valve (7), described back work runner (22) connects the second actuator port (B)
With oil return opening (T)；And in switching valve rod (16) commutation transient process, oil-in (P) connects the first working oil simultaneously
Mouth (A) and the second actuator port (B), when switching valve rod (16) commutation to extreme position, oil-in (P) only connects
Second actuator port (B), described switching valve rod (16) cuts off back work runner (22)；
Described switching valve rod (16) includes bar portion (25), the first stop part (26) and the second stop part (27), described
One stop part (26) and the second stop part (27) are corresponding with the first actuator port (A) and the second actuator port (B) respectively,
And in switching valve rod (16) commutation transient process, oil-in (P) is simultaneously by the first stop part (26) and the second resistance
Stopper (27) connects the first actuator port (A) and the second actuator port (B)；
The first filter screen damping (9) and the damping of the second filter screen being serially connected it is also equipped with on described back work runner (22)
(10)。
Compact telescopic oil cylinder the most according to claim 1 switching valve group, it is characterised in that: described spring control group
Part includes end cap (3), Limit screw (11), end cap spring (12) and spring base (13), and described end cap (3) is installed on
One end of valve body (1), described Limit screw (11) is installed in end cap (3), and described spring base (13) is set in be cut
Changing the end of valve rod (16), one end of described Limit screw (11) contacts with the end of switching valve rod (16), described
End cap spring (12) is sheathed on Limit screw (11), and contacts with spring base (13).
Compact telescopic oil cylinder the most according to claim 2 switching valve group, it is characterised in that: described end cap (3) with
Baffle plate (2) it is additionally provided with, by an O RunddichtringO (14) between described end cap (3) and baffle plate (2) between valve body (1)
Seal, sealed by an O (15) between described baffle plate (2) and valve body (1).
Compact telescopic oil cylinder the most according to claim 1 switching valve group, it is characterised in that: it is positioned at described switching valve
The ED plug screw (18) corresponding with switching valve rod (16) it is also equipped with on the valve body (1) of bar (16) the other end.
5. switch valve group according to the compact telescopic oil cylinder described in Claims 1-4 any one, it is characterised in that: institute
State reverse check valve (7) and solenoid directional control valve (17) all uses screw thread inserting type structure to be installed on valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369560.4A CN104165166B (en) | 2014-07-30 | 2014-07-30 | A kind of compact telescopic oil cylinder switching valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369560.4A CN104165166B (en) | 2014-07-30 | 2014-07-30 | A kind of compact telescopic oil cylinder switching valve group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165166A CN104165166A (en) | 2014-11-26 |
| CN104165166B true CN104165166B (en) | 2016-08-24 |
Family
ID=51909114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410369560.4A Expired - Fee Related CN104165166B (en) | 2014-07-30 | 2014-07-30 | A kind of compact telescopic oil cylinder switching valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104165166B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489788B (en) * | 2017-08-31 | 2023-10-20 | 上海立新液压有限公司 | Efficient electromagnetic reversing valve |
| CN108087365B (en) * | 2017-12-19 | 2019-11-26 | 江苏双辉机械制造有限公司 | Oil circuit automatic transfer valve |
| CN108005987A (en) * | 2017-12-31 | 2018-05-08 | 无锡英特帕普威孚液压有限责任公司 | Hydraulicdirectional control valve reversing oil circuit structure |
| CN108626296B (en) * | 2018-04-02 | 2020-06-02 | 徐州徐工液压件有限公司 | One-way damping valve used on hydro-pneumatic suspension system |
| CN110486504B (en) * | 2019-08-25 | 2020-12-22 | 江苏科迈液压控制系统有限公司 | Low-power-consumption large-flow electromagnetic valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598152A (en) * | 2009-06-18 | 2009-12-09 | 卢宇 | Large-flow compact type bi-directional rotary control valve |
| CN201661537U (en) * | 2010-02-11 | 2010-12-01 | 卢宇 | Upper electro-hydraulic integrating operation rotary control valve of mechanical crane |
| CN102135118A (en) * | 2011-04-17 | 2011-07-27 | 常德中联重科液压有限公司 | Hydraulic control component and control circuit with same |
| CN102678647A (en) * | 2012-05-31 | 2012-09-19 | 常德中联重科液压有限公司 | Direction control valve |
| CN203430888U (en) * | 2013-08-09 | 2014-02-12 | 徐州重型机械有限公司 | Wheeled crane and hydraulic balance loop thereof |
| CN204003721U (en) * | 2014-07-30 | 2014-12-10 | 株洲中研流体技术有限公司 | A kind of compact type telescopic oil cylinder switching valve group |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7481149B2 (en) * | 2005-07-04 | 2009-01-27 | Smc Corporation | Bimanual control valve |
-
2014
- 2014-07-30 CN CN201410369560.4A patent/CN104165166B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598152A (en) * | 2009-06-18 | 2009-12-09 | 卢宇 | Large-flow compact type bi-directional rotary control valve |
| CN201661537U (en) * | 2010-02-11 | 2010-12-01 | 卢宇 | Upper electro-hydraulic integrating operation rotary control valve of mechanical crane |
| CN102135118A (en) * | 2011-04-17 | 2011-07-27 | 常德中联重科液压有限公司 | Hydraulic control component and control circuit with same |
| CN102678647A (en) * | 2012-05-31 | 2012-09-19 | 常德中联重科液压有限公司 | Direction control valve |
| CN203430888U (en) * | 2013-08-09 | 2014-02-12 | 徐州重型机械有限公司 | Wheeled crane and hydraulic balance loop thereof |
| CN204003721U (en) * | 2014-07-30 | 2014-12-10 | 株洲中研流体技术有限公司 | A kind of compact type telescopic oil cylinder switching valve group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104165166A (en) | 2014-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104165166B (en) | A kind of compact telescopic oil cylinder switching valve group | |
| CN204061372U (en) | A kind of oil hydraulic cylinder quick-expansion control loop | |
| CN102673639B (en) | Hydraulic steering control system and crane with system | |
| CN102996553B (en) | Support leg hydraulic system and engineering machinery | |
| CN105351276A (en) | Rotation hydraulic control system and method and crane | |
| CN201661532U (en) | Hydraulic pumping system of concrete pump | |
| CN204175679U (en) | Bidirectional booster cylinder, pressurization system and vehicle | |
| CN204003701U (en) | A kind of novel bidirectional hydraulic locking-valve group | |
| CN103133446B (en) | Valve rod of multi-path valve and multi-path valve with valve rod | |
| CN204284043U (en) | A kind of hydraulic control system and pump | |
| CN202451484U (en) | Double-cylinder synchronization control hydraulic system and crane | |
| CN204572604U (en) | Revolution combined control valve, rotary system and hoist | |
| CN204003721U (en) | A kind of compact type telescopic oil cylinder switching valve group | |
| CN104029722B (en) | Engineering machinery hydraulic steering | |
| CN103290869B (en) | The control system of a kind of bulldozer and shovel blade inclination thereof | |
| CN205578390U (en) | Multiple directional control valve that supporting burden flow feedback multiple unit valve used | |
| CN204082762U (en) | The automatic reciprocating oil hydraulic cylinder of a kind of integrated form | |
| CN102168696A (en) | High-low pressure switching control system, concrete pumping system and device | |
| CN202209447U (en) | Converging valve and crane hydraulic control system with converging valve | |
| CN203627367U (en) | Locking loop provided with electromagnetic directional valve | |
| CN204083373U (en) | A kind of multi-way valve with off-load protection | |
| CN202381436U (en) | Hydraulic control valve and fire truck off outrigger control system with hydraulic control valve | |
| CN102152719B (en) | Damping control buffering system with high integration | |
| CN108561358A (en) | A kind of differential circuit switching valve and hydraulic differential circuit | |
| CN209649988U (en) | Suspension system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20180730 |