CN207363985U - A kind of direct moving type hydraulic thread cartridge buffer overflow valve - Google Patents
A kind of direct moving type hydraulic thread cartridge buffer overflow valve Download PDFInfo
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- CN207363985U CN207363985U CN201721236480.7U CN201721236480U CN207363985U CN 207363985 U CN207363985 U CN 207363985U CN 201721236480 U CN201721236480 U CN 201721236480U CN 207363985 U CN207363985 U CN 207363985U
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Abstract
The utility model discloses a kind of direct moving type hydraulic thread cartridge buffer overflow valve, including valve body, valve seat is fixedly connected with the left of the valve body, oil inlet is offered on the left of the valve seat, the valve base surface right hand top offers oil outlet with bottom, the first nut is fixedly connected with the right side of the valve body, the thread in inner cavity of first nut is connected with adjusting set, the inner cavity of valve body is extended on the left of adjusting set, the second nut is fixedly connected with the right side of adjusting set.The utility model by valve body, valve seat, oil inlet, oil outlet, adjusting rod, spring, spool, first segment discharge orifice, cushion chamber, be oriented to annulus, cross recirculation hole, damper piston, second throttle orifice and be used cooperatively; buffer unit can be provided directly with the inside of overflow valve; avoiding traditional buffer unit may clamping stagnation and abrasion; and improve buffering effect; the protective effect of buffering overflow has preferably been played, has extended the service life of overflow valve.
Description
Technical field
Overflow valve technical field is the utility model is related to, is specially a kind of direct moving type hydraulic thread cartridge buffer overflow valve.
Background technology
In excavator walks startup and braking procedure, the rising of walking mechanism load transients is larger, causes in walking mechanism
Portion's impact is larger, and parts wear is more serious, in order to reduce the negative effect that hydraulic shock is brought, usually in the suitable of hydraulic system
, can be with the pressure oscillation of suppression system using buffer relief valve when position installation buffer relief valve, and then reduce complete machine
Failure rate, common buffer relief valve, buffer unit all on the outside of overflow valve pocket, directly bear compression shock, because
This easily causes buffer unit clamping stagnation and heavy wear, makes the average life time of buffer unit shorter, simultaneous buffering device only leans on
The volume that damper piston movement produces is bad into row buffering, buffering effect, it is impossible to the protective effect of buffering overflow is preferably played,
Cause service life shorter.
Utility model content
The purpose of this utility model is to provide a kind of direct moving type hydraulic thread cartridge buffer overflow valve, possesses buffering effect
The advantages of good, solves common buffer relief valve, buffer unit all on the outside of overflow valve pocket, directly bears pressure
Impact, therefore buffer unit clamping stagnation and heavy wear are easily caused, make the average life time of buffer unit shorter, simultaneous buffering dress
It is bad into row buffering, buffering effect to put the volume only produced by damper piston movement, it is impossible to preferably play the guarantor of buffering overflow
Shield acts on, the problem of causing service life shorter.
To achieve the above object, the utility model provides following technical solution：A kind of direct moving type hydraulic thread cartridge buffering
Overflow valve, including valve body, are fixedly connected with valve seat on the left of the valve body, oil inlet are offered on the left of the valve seat, described
Valve base surface right hand top and bottom offer oil outlet, are fixedly connected with the first nut on the right side of the valve body, and described the
The thread in inner cavity of one nut is connected with adjusting set, and the inner cavity of valve body is extended on the left of the adjusting set；
The second nut is fixedly connected with the right side of the adjusting set, the thread in inner cavity of second nut is connected with adjusting
Bar, the left side of the adjusting rod through adjusting set and extend to the inner cavity of adjusting set, and the adjusting rod is located at adjusting set inner cavity
One end is fixedly connected with the first support plate, is arranged with spring on the left of first support plate, the inner cavity set on the left of the spring
Equipped with the second support plate, be fixedly connected with spool on the left of second support plate, the top of the valve body surface and top from
Left-to-right offers air leakage hole and exhausting-gas hole successively.
Preferably, the spool includes valve head and valve rod, and the valve head is located at the left end of valve rod, the periphery wall of the valve head
It is slidably connected with the inner cavity of valve body, the left part of the valve head is provided with conical seal (contact) face, and the inner cavity of the spool is from left to right
First segment discharge orifice is offered successively ease up rush chamber.
Preferably, guiding annulus, the top and bottom for being oriented to annulus are fixedly connected with the left of the body cavity
Offered recirculation hole, the valve rod through being oriented to annulus, the valve rod and being oriented between annulus be radially equipped with it is predetermined between
Gap.
Preferably, the surface of the valve rod is arranged with damper piston, and periphery wall and the body cavity of the damper piston are slided
Dynamic connection, the top and bottom of the damper piston offer the second throttle orifice.
Preferably, handwheel is fixedly connected with the right side of the adjusting rod, the surface of the handwheel is arranged with Anti-slip cover, described
The surface of Anti-slip cover is provided with anti-skid chequer.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model by valve body, valve seat, oil inlet, oil outlet, adjusting rod, spring, spool, first segment discharge orifice,
Cushion chamber, be oriented to annulus, cross recirculation hole, damper piston, the second throttle orifice and be used cooperatively, can be direct in the inside of overflow valve
Be provided with buffer unit, avoid traditional buffer unit may clamping stagnation and abrasion, and improve buffering effect, preferably
The protective effect of buffering overflow has been played, has extended the service life of overflow valve.
2nd, the utility model rushes chamber by setting first segment discharge orifice to ease up, and can tentatively play cushioning effect, can make liquid
The process of pressure system pressure increase delays, and then avoids pressure rise too fast, can by setting guiding annulus and crossing recirculation hole
Spool clamping stagnation during movement is avoided, preferably ensure that the normal work of valve, by setting damper piston, valve can be made
Volume smaller, more compact structure；The guiding role of valve rod, can reduce eccentric clamping stagnation in spool and damper piston moving process
Caused by inordinate wear, by setting handwheel, the pressure limit of the elastic force of spring so as to regulation relief valve can be adjusted, preferably
It ensure that the normal work of overflow valve.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the partial structurtes enlarged diagram of the utility model A.
In figure：1 valve body, 2 valve seats, 3 oil inlets, 4 oil outlets, 5 first nuts, 6 adjusting sets, 7 second nuts, 8 adjusting rods,
9 first support plates, 10 springs, 11 second support plates, 12 spools, 121 valve heads, 122 valve rods, 13 air leakage holes, 14 exhausting-gas holes, 15
Recirculation hole, 19 damper pistons, 20 second throttle orifices, 21 handwheels are crossed in one throttle orifice, 16 cushion chambers, 17 guiding annulus, 18.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, a kind of direct moving type hydraulic thread cartridge buffer overflow valve, including valve body 1, the left side of valve body 1 are consolidated
Surely valve seat 2 is connected with, the left side of valve seat 2 offers oil inlet 3, and 2 surface right hand top of valve seat offers oil outlet with bottom
4, the right side of valve body 1 is fixedly connected with the first nut 5, and the thread in inner cavity of the first nut 5 is connected with adjusting set 6, a left side for adjusting set 6
Side extends to the inner cavity of valve body 1；
The right side of adjusting set 6 is fixedly connected with the second nut 7, and the thread in inner cavity of the second nut 7 is connected with adjusting rod 8, adjusts
The right side of pole 8 is fixedly connected with handwheel 21, and the surface of handwheel 21 is arranged with Anti-slip cover, and the surface of Anti-slip cover is provided with anti-skidding
Line, by setting handwheel 21, can adjust the elastic force of spring 10 so as to the pressure limit of regulation relief valve, preferably ensure that excessive
The normal work of valve is flowed, the left side of adjusting rod 8 through adjusting set 6 and extends to the inner cavity of adjusting set 6, and adjusting rod 8 is positioned at adjusting
The one end for covering 6 inner cavities is fixedly connected with the first support plate 9, and the left side of the first support plate 9 is arranged with spring 10, the left side of spring 10
Inner cavity is arranged with the second support plate 11, and the left side of the second support plate 11 is fixedly connected with spool 12, and spool 12 includes 121 He of valve head
Valve rod 122, is fixedly connected with the left of 1 inner cavity of valve body and is oriented to annulus 17, and the top and bottom for being oriented to annulus 17 offered
Recirculation hole 18, valve rod 122 are radially equipped with predetermined gap between valve rod 122 and guiding annulus 17 through guiding annulus 17, lead to
Cross setting to be oriented to annulus 17 and cross recirculation hole 18, the clamping stagnation during movement of spool 12 can be avoided, preferably ensure that valve
Normal work, valve head 121 is located at the left end of valve rod 122, and the inner cavity of the periphery wall and valve body 1 of valve head 121 is slidably connected, valve head
121 left part is provided with conical seal (contact) face, and the inner cavity of spool 12 offers first segment discharge orifice 15 and buffering successively from left to right
Chamber 16, by setting first segment discharge orifice 15 and cushion chamber 16, can tentatively play cushioning effect, can increase hydraulic system pressure
Big process delays, and then avoids pressure rise too fast, and top and the top on 1 surface of valve body offer excessive gas successively from left to right
Hole 13 and exhausting-gas hole 14, the surface of valve rod 122 are arranged with damper piston 19, and periphery wall and 1 inner cavity of valve body of damper piston 19 are slided
Dynamic connection, the top and bottom of damper piston 19 offer the second throttle orifice 20, by setting damper piston 19, can make valve
Volume smaller, more compact structure；The guiding role of valve rod 122, can reduce in 19 moving process of spool 12 and damper piston
Inordinate wear caused by eccentric clamping stagnation, by valve body 1, valve seat 2, oil inlet 3, oil outlet 4, adjusting rod 8, spring 10, spool 12,
The cooperation of first segment discharge orifice 15, cushion chamber 16, guiding annulus 17, excessively recirculation hole 18, damper piston 19, the second throttle orifice 20 makes
With, buffer unit can be provided directly with the inside of overflow valve, avoid traditional buffer unit may clamping stagnation and abrasion,
And buffering effect is improved, the protective effect of buffering overflow has preferably been played, has extended the service life of overflow valve.
In use, with the pressure rise of high-pressure oil passage, when the active force that 12 left end of spool is subject to is more than the resistance of right end,
Spool 12 moves right, and oil inlet 3 is connected with oil outlet 4, and then carries out pressure release, the pressure relieving of high-pressure oil passage to high-pressure oil passage
Increase tendency, at the same time, section hydraulic oil overcome the damping of first segment discharge orifice 15 to enter the inner cavity of cushion chamber 16, cushion chamber
16 with accommodating portion hydraulic oil, can further delay the trend of pressure increase；As pressure continues to raise, hydraulic oil overcomes second
The damping of throttle orifice 20 enters the right side of 1 inner cavity of valve body, and the right side of 1 inner cavity of valve body can accommodate a certain amount of hydraulic oil, together
Sample can also delay the trend that high-pressure oil passage pressure increases, and under the action of hydraulic oil, damper piston 19 is moved to the left, further
Delay the increase tendency of pressure.
In summary：The direct moving type hydraulic thread cartridge buffer overflow valve, by valve body 1, valve seat 2, oil inlet 3, fuel-displaced
Mouthfuls 4, adjusting rod 8, spring 10, spool 12, first segment discharge orifice 15, cushion chamber 16, be oriented to annulus 17, cross recirculation hole 18, buffering is lived
The cooperation of the 19, second throttle orifice 20 is filled in, solves common buffer relief valve, buffer unit is all outside overflow valve pocket
Side, directly bears compression shock, therefore easily causes buffer unit clamping stagnation and heavy wear, makes the average life time of buffer unit
Shorter, the volume that simultaneous buffering device is only produced by damper piston movement is bad into row buffering, buffering effect, it is impossible to preferably hair
The problem of waving the protective effect of buffering overflow, causing service life shorter.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of direct moving type hydraulic thread cartridge buffer overflow valve, including valve body (1), it is characterised in that：A left side for the valve body (1)
Side is fixedly connected with valve seat (2), and oil inlet (3), valve seat (2) surface right hand top are offered on the left of the valve seat (2)
Oil outlet (4) is offered with bottom, the first nut (5), first nut are fixedly connected with the right side of the valve body (1)
(5) thread in inner cavity is connected with adjusting set (6), and the inner cavity of valve body (1) is extended on the left of the adjusting set (6)；
The second nut (7) is fixedly connected with the right side of the adjusting set (6), the thread in inner cavity of second nut (7) is connected with
Adjusting rod (8), the left side of the adjusting rod (8) through adjusting set (6) and extend to the inner cavity of adjusting set (6), the adjusting rod
(8) the first support plate (9) is fixedly connected with positioned at one end of adjusting set (6) inner cavity, is arranged on the left of first support plate (9)
There is a spring (10), the inner cavity on the left of the spring (10) is arranged with the second support plate (11), a left side for second support plate (11)
Side is fixedly connected with spool (12), and top and the top on valve body (1) surface offer air leakage hole (13) successively from left to right
With exhausting-gas hole (14).
A kind of 2. direct moving type hydraulic thread cartridge buffer overflow valve according to claim 1, it is characterised in that：The spool
(12) valve head (121) and valve rod (122) are included, the valve head (121) is located at the left end of valve rod (122), the valve head (121)
Periphery wall and the inner cavity of valve body (1) are slidably connected, and the left part of the valve head (121) is provided with conical seal (contact) face, the spool
(12) inner cavity offers first segment discharge orifice (15) and cushion chamber (16) successively from left to right.
A kind of 3. direct moving type hydraulic thread cartridge buffer overflow valve according to claim 2, it is characterised in that：The valve body
(1) it is fixedly connected with the left of inner cavity and is oriented to annulus (17), the top and bottom for being oriented to annulus (17) offers overcurrent
Through hole (18), the valve rod (122) are radially put through annulus (17) is oriented between the valve rod (122) and guiding annulus (17)
There is predetermined gap.
A kind of 4. direct moving type hydraulic thread cartridge buffer overflow valve according to claim 2, it is characterised in that：The valve rod
(122) surface is arranged with damper piston (19), and periphery wall and valve body (1) inner cavity of the damper piston (19) are slidably connected,
The top and bottom of the damper piston (19) offers the second throttle orifice (20).
A kind of 5. direct moving type hydraulic thread cartridge buffer overflow valve according to claim 1, it is characterised in that：The adjusting
Handwheel (21) is fixedly connected with the right side of bar (8), the surface of the handwheel (21) is arranged with Anti-slip cover, the surface of the Anti-slip cover
It is provided with anti-skid chequer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236480.7U CN207363985U (en) | 2017-09-25 | 2017-09-25 | A kind of direct moving type hydraulic thread cartridge buffer overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236480.7U CN207363985U (en) | 2017-09-25 | 2017-09-25 | A kind of direct moving type hydraulic thread cartridge buffer overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363985U true CN207363985U (en) | 2018-05-15 |
Family
ID=62349973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721236480.7U Expired - Fee Related CN207363985U (en) | 2017-09-25 | 2017-09-25 | A kind of direct moving type hydraulic thread cartridge buffer overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363985U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162977A (en) * | 2018-10-19 | 2019-01-08 | 宁波文泽机电技术开发有限公司 | Rotary buffering valve |
| CN112610553A (en) * | 2020-11-25 | 2021-04-06 | 杨明虎 | Booster-type overflow valve |
| CN113864270A (en) * | 2021-09-29 | 2021-12-31 | 刘颖 | Direct-acting overflow valve |
| CN115370875A (en) * | 2022-08-25 | 2022-11-22 | 芜湖高昌液压机电技术有限公司 | Hydraulic contraction type electromechanical equipment auxiliary moving assembly |
-
2017
- 2017-09-25 CN CN201721236480.7U patent/CN207363985U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162977A (en) * | 2018-10-19 | 2019-01-08 | 宁波文泽机电技术开发有限公司 | Rotary buffering valve |
| CN109162977B (en) * | 2018-10-19 | 2020-08-28 | 湖北江威智能汽车股份有限公司 | Rotary cushion valve |
| CN112610553A (en) * | 2020-11-25 | 2021-04-06 | 杨明虎 | Booster-type overflow valve |
| CN112610553B (en) * | 2020-11-25 | 2022-12-06 | 浙江绿洲制冷设备有限公司 | Booster-type overflow valve |
| CN113864270A (en) * | 2021-09-29 | 2021-12-31 | 刘颖 | Direct-acting overflow valve |
| CN113864270B (en) * | 2021-09-29 | 2023-10-03 | 盐城市精工阀门有限公司 | Direct-acting overflow valve |
| CN115370875A (en) * | 2022-08-25 | 2022-11-22 | 芜湖高昌液压机电技术有限公司 | Hydraulic contraction type electromechanical equipment auxiliary moving assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20200925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |