CN108278234A - Plug-in rotary buffering valve - Google Patents
Plug-in rotary buffering valve Download PDFInfo
- Publication number
- CN108278234A CN108278234A CN201810045910.XA CN201810045910A CN108278234A CN 108278234 A CN108278234 A CN 108278234A CN 201810045910 A CN201810045910 A CN 201810045910A CN 108278234 A CN108278234 A CN 108278234A
- Authority
- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid port
- valve
- swivel nut
- circulation passage
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
- B66C23/86—Slewing gear hydraulically actuated
-
- 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
Abstract
The present invention proposes a kind of plug-in rotary buffering valve, including：Valve body which is provided with hydraulic fluid port A and hydraulic fluid port B；Main valve plug is located in the valve body, and the second circulation passage which is provided with the first circulation passage being connected to hydraulic fluid port A and be connected to hydraulic fluid port B；Valve seat is connected in the main valve plug；Swivel nut, one end are fixedly connected with the one end of the valve body far from hydraulic fluid port A, and are equipped with hydraulic fluid port T far from the side of hydraulic fluid port A in the swivel nut mouth of swivel nut；First elastic component, is located between swivel nut and valve seat；Pilot valve, one end are crimped on partition hydraulic fluid port T on swivel nut mouth, and the other end passes through swivel nut, the first elastic component to enter in valve seat, and be formed with gap circulation passage between the valve seat.The plug-in rotary buffering valve structure is simpler, compact, and processing is more convenient, cost is lower.
Description
Technical field
The present invention relates to valve technology fields, and in particular to a kind of plug-in rotary buffering valve, the plug-in rotary buffering valve
It is mainly used in minor crane, hydraulic crane, swing mechanism etc..
Background technology
In order to improve the mobility of working efficiency and complete machine in engineering machinery, generally there is swing mechanism.Automobile is risen
Heavy-duty machine, swing mechanism are even more indispensable.And load inertia of the autocrane in revolution is larger, starts, braking is frequent, work
Make inclement condition, thus its hydraulic system requires reliable operation, especially turns round in starting and braking, cannot there is big pressure
Impact.
The prior art generally prevents from overloading by the way that rotary buffering valve is arranged.Current tonnage hydraulic automobile medium and small on the market rises
There are mainly two types of modes for the rotary buffering valve of heavy-duty machine：A kind of to be connected in parallel on rotary motor both ends using Two relief valve, another kind uses
Four check valves and a pilot operated compound relief valve form bridge；It starts, allow closed high-voltage oil liquid by overflowing in braking process
Stream valve overflows, and both direction is all worked.But both the above rotary buffering valve is all made of multiple valve members, body
The more huge and cost of product is higher, unsuitable to be widely used on minor crane.
Invention content
For some or all of of the above-mentioned technical problem in the presence of the prior art, the present invention proposes a kind of inserting
Formula rotary buffering valve, the plug-in rotary buffering valve structure is simpler, compact, and processing is more convenient, cost is lower.
In order to realize that the above goal of the invention, the present invention propose a kind of plug-in rotary buffering valve having following structure,
Including：
Valve body which is provided with hydraulic fluid port A and hydraulic fluid port B；
Main valve plug is located in the valve body, and which is provided with the first circulation passage and and hydraulic fluid port being connected to hydraulic fluid port A
Second circulation passage of B connections；
Valve seat is connected in the main valve plug；
Swivel nut, one end are fixedly connected with the one end of the valve body far from hydraulic fluid port A, and in the swivel nut mouth of swivel nut far from hydraulic fluid port
The side of A is equipped with hydraulic fluid port T；
First elastic component, is located between swivel nut and valve seat；
Pilot valve, one end are crimped on swivel nut mouth partition hydraulic fluid port T, the other end pass through swivel nut, the first elastic component into
Enter in valve seat, and is formed with gap circulation passage between the valve seat；
The control mechanism of control pilot valve Opening pressure is additionally provided on the swivel nut；When hydraulic fluid port A or hydraulic fluid port B pressure are more than
When the preset pressure of control mechanism, pilot valve is open-top, and fluid is through the first circulation passage or the second circulation passage via gap
Circulation passage enters swivel nut and from hydraulic fluid port T overflow, and main valve plug opens buffering.
In the present invention, play the role of damping and guarantee pilot valve stable movement by the way that gap circulation passage is arranged.
Overflowing from hydraulic fluid port A or hydraulic fluid port B to hydraulic fluid port T is realized by the setting of main valve plug, valve seat, swivel nut, the first elastic component and pilot valve
Stream and the buffering between hydraulic fluid port A and hydraulic fluid port B.And the group since multiple check valves and overflow valve need not be used in the present invention
Structure is closed, but two-way overload buffer can be achieved with by a valve body, thus structure is simpler, compact, processing is also more square
Just, cost is lower.
In one embodiment, first circulation passage includes the first axis hole being connected to hydraulic fluid port A and with
First speaker hole of one axial hole connection, first speaker hole are equipped with the first reversed disabling mechanism.
In one embodiment, second circulation passage includes the first radial hole being connected to hydraulic fluid port B and with
Second speaker hole of one radial hole connection, second speaker hole are equipped with the second reversed disabling mechanism.
In one embodiment, the outside that the main valve plug corresponds to the position of hydraulic fluid port B is the structure that ladder is inwardly recessed,
The inside that the main valve plug corresponds to the position of hydraulic fluid port B is inclined-plane, valve seat direction the first circulation passage and second circulation passage
One side be equipped with and convex block and be formed with gap between the exit face and valve seat of the second speaker hole.
In one embodiment, the pilot valve include sequentially connected taper portion, sealing block, the first cylindrical portion,
First slide contact part, the second cylindrical portion and the second slide contact part, the swivel nut mouth are cone structure, first cylindrical portion
There are gaps, the diameter of the sealing block to be more than the diameter of the swivel nut mouth between the swivel nut mouth, and first sliding connects
The diameter of the diameter of socket part and second slide contact part is more than the diameter of second cylindrical portion, and described first is slidably connected
The gap circulation passage of 0.05mm-1mm is formed between portion and second slide contact part and the valve seat.
In one embodiment, the valve seat is respectively equipped with the protrusion stretched out in opposite directions on the opposite face of the swivel nut,
The both ends of first elastic component are socketed in respectively on the protrusion.
In one embodiment, the control mechanism includes the second elastic component, adjusting screw rod and locking nut, the tune
Section screw rod one end is plugged in the swivel nut and is threadedly coupled with the swivel nut, and the other end of the adjusting screw rod connects the lock
Tight nut, the locking nut are connected to one end outer surface of the swivel nut far from pilot valve, and the one of second elastic component
End is connected in the pilot valve, and the other end of second elastic component is connected to the surface of internal cavity of the adjusting screw rod.
In one embodiment, it is adjusted by adjusting the adjusting screw rod and locking nut and is crimped on the pilot valve
Pre-pressing force on core, to control the Opening pressure of pilot valve.
In one embodiment, hydraulic fluid port A pressure is high, hydraulic fluid port B pressure is low, and the pressure of hydraulic fluid port A is more than control mechanism
When Opening pressure, the part fluid of hydraulic fluid port A flows to hydraulic fluid port T overflows through the first circulation passage, gap circulation passage；Main valve plug is being pressed
It is opened under the action of difference, fluid flows to hydraulic fluid port B from hydraulic fluid port A and forms buffering.
In one embodiment, hydraulic fluid port B pressure is high, hydraulic fluid port A pressure is low, and the pressure of hydraulic fluid port B is more than control mechanism
When Opening pressure, the fluid of hydraulic fluid port B flows to hydraulic fluid port T through the second circulation passage, gap circulation passage.Effect of the main valve plug in pressure difference
Lower unlatching, fluid flow to hydraulic fluid port A from hydraulic fluid port B and form buffering.
Compared with prior art, the advantages of plug-in rotary buffering valve of the invention, is：
Pass through the structure of gap circulation passage, main valve plug, valve seat, swivel nut, the first elastic component and pilot valve in the present invention
Setting and connection relation are realized from hydraulic fluid port A to hydraulic fluid port B and from hydraulic fluid port B to the overload buffer function of hydraulic fluid port A both directions.
Compared with prior art, reduce the cumbersome problem of arrangement and piping connection that a pile valve body connect band is come.And due to only needing
A valve body, more compact structure are wanted, while being greatly reduced cost.It is relatively not multiple additionally, due to valve body structure and spool shape
Miscellaneous, processing is also convenient for.It can be better adapted to the operating modes such as minor crane, hydraulic crane, swing mechanism.
Description of the drawings
The preferred embodiment of the present invention is described in detail below in conjunction with attached drawing, in figure：
Fig. 1 shows the structural schematic diagram of one of the plug-in rotary buffering valve of present invention embodiment.
In attached drawing, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.
Specific implementation mode
In order to make technical scheme of the present invention and advantage be more clearly understood, below in conjunction with attached drawing to the exemplary of the present invention
Embodiment is described in more detail.Obviously, the described embodiments are merely a part of the embodiments of the present invention, rather than
The exhaustion of all embodiments.And in the absence of conflict, the feature in the embodiment and embodiment in the present invention can be mutual
It is combined.
Inventor is during invention it is noted that generally forming rotary buffering valve by multiple valve members in the prior art to prevent
Overload, leads to that structural volume is more huge and cost is higher, unsuitable to be widely used on minor crane.
For the above deficiency, the embodiment of the present invention proposes a kind of plug-in rotary buffering valve, is illustrated below.
It as figure 1 shows the one of which embodiment of the plug-in rotary buffering valve of the present invention.In this embodiment, this hair
Bright plug-in rotary buffering valve includes mainly：Valve body 1, main valve plug 2, valve seat 4, pilot valve 6, the first elastic component 5 and swivel nut
8.Wherein, hydraulic fluid port A and hydraulic fluid port B is located at the lower end of valve body 1, and hydraulic fluid port A is located on the axial direction of valve body 1, and hydraulic fluid port B is located at radial side
Upwards.Main valve plug 2 is located in valve body 1, and the lower end of main valve plug 2 is connected on the valve port 1.1 of valve body 1, and preceding oil is opened in main valve plug 2
Mouth A and hydraulic fluid port B is separated.In addition, main valve plug 2 is equipped with the first circulation passage for being connected to hydraulic fluid port A and is connected to hydraulic fluid port B
Second circulation passage.The top of valve body 1 is connected with swivel nut 8, and in other words, the lower end of swivel nut 8 is fixedly connected with valve body 1.Swivel nut 8
It is equipped with hydraulic fluid port T positioned at the top of swivel nut mouth 8.1, pilot valve 6 is connect with swivel nut 8, and the upper end of pilot valve 6 is crimped on swivel nut mouth
Separate hydraulic fluid port T on 8.1, the lower end of pilot valve 6 passes through swivel nut 8, the first elastic component 5 to enter in valve seat 4, pilot valve 6 and valve
It is formed with gap circulation passage between seat 4.In addition, the top that swivel nut 8 is located at swivel nut mouth 8.1 is additionally provided with control pilot valve 6
The control mechanism of Opening pressure.When preset pressure that is higher in hydraulic fluid port A or hydraulic fluid port B pressure and being more than control mechanism, pilot valve 6
Open-top, fluid enters via gap circulation passage in swivel nut 8 through the first circulation passage or the second circulation passage, and from hydraulic fluid port T
Overflow.
In one embodiment, the first circulation passage includes mainly the first axis hole 2.1 being connected to hydraulic fluid port A and with
First speaker hole 2.2 of one axial hole 2.1 connection, the first speaker hole 2.2 are equipped with the first reversed cut-off for magnifying opening upwards
Mechanism 2.3.Steel ball can be selected in the first reversed disabling mechanism 2.3.
In one embodiment, the second circulation passage includes mainly the first radial hole 2.4 being connected to hydraulic fluid port B and with
Second speaker hole 2.5 of one radial hole 2.4 connection, the second speaker hole 2.5 are equipped with the second reversed disabling mechanism 2.6.This second
Steel ball can be selected in reversed disabling mechanism 2.6.
In one embodiment, the outside (being outside lower end in Fig. 1) that main valve plug 2 corresponds to the position of hydraulic fluid port B is ladder-like
The structure being inwardly recessed.The inside that main valve plug 2 corresponds to the position (being lower end in Fig. 1) of hydraulic fluid port B is inclined-plane, valve seat 4 towards first
The one side (being lower face in Fig. 1) of circulation passage and the second circulation passage is equipped with downwardly projecting convex block and in the second speaker hole
It is formed with gap 2.7 between 2.5 exit face and valve seat 4.
In one embodiment, pilot valve 6 includes mainly sequentially connected taper portion, sealing block 6.1, the first cylinder
Portion, the first slide contact part, the second cylindrical portion and the second slide contact part.The swivel nut mouth 8.1 of swivel nut 8 be cone structure, first
There are gaps, the diameter of sealing block 6.1 to be more than the diameter of swivel nut mouth 8.1, thus pilot valve between cylindrical portion and swivel nut mouth 8.1
6 can block swivel nut mouth 8.1 by sealing block 6.1 downwards.The diameter of first slide contact part and the second slide contact part it is straight
Diameter is all higher than the diameter of the second cylindrical portion, is formed between the first slide contact part and the second slide contact part and valve seat 4 radially-wide
Degree is the gap circulation passage of 0.05mm-1mm.Gap circulation passage can be from clearance fit, or can be by processing first
Strip gap on slide contact part and the second slide contact part is constituted.
In a preferred embodiment, the upper surface of valve seat 4 is equipped with the first protrusion 4.1, and the lower face of swivel nut 8 is equipped with the
Two protrusions 8.2, which sets up separately with the second protrusion 8.2 on the face opposite with swivel nut 8 of valve seat 4, and the first protrusion
4.1 are oppositely arranged with the second protrusion 8.2.The upper end of first elastic component 5 is socketed on the second protrusion 8.2, under the first elastic component 5
End cap is connected on the first protrusion 4.1.In addition, shape between the top of valve body 1, the lower part of swivel nut 8, the top of main valve plug 2 and valve seat 4
At there is control chamber 3.
In one embodiment, control mechanism includes mainly the second elastic component 7, adjusting screw rod 9 and locking nut 10.Its
In, the lower end of adjusting screw rod 9 is plugged in swivel nut 8 and is threadedly coupled with swivel nut 8, and the upper end of adjusting screw rod 9 is connected with locking screw
Mother 10, locking nut 10 is connected to the upper end outer surface of swivel nut 8, and the lower end of the second elastic component 7 is connected in pilot valve 6, the
The upper end of two elastic components 7 is connected to the surface of internal cavity of adjusting screw rod 9.
In one embodiment, it is adjusted and is crimped in pilot valve 6 by adjusting adjusting screw rod 9 and locking nut 10
Pre-pressing force, to control the Opening pressure of pilot valve 6.
In one embodiment, hydraulic fluid port A pressure is high, hydraulic fluid port B pressure is low, and the pressure of hydraulic fluid port A is more than opening for control mechanism
When opening the active force of pressure or the second elastic component 7, the part fluid of hydraulic fluid port A is flowed to through the first circulation passage, gap circulation passage
Hydraulic fluid port T overflows；Main valve plug is opened under the action of pressure difference, and fluid flows to hydraulic fluid port B from hydraulic fluid port A and forms buffering.
In one embodiment, hydraulic fluid port B pressure is high, hydraulic fluid port A pressure is low, and the pressure of hydraulic fluid port B is more than opening for control mechanism
When opening the active force of pressure or the second elastic component 7, the fluid of hydraulic fluid port B flows to hydraulic fluid port through the second circulation passage, gap circulation passage
T.Main valve plug 2 is opened under the action of pressure difference, and fluid flows to hydraulic fluid port A from hydraulic fluid port B and forms buffering.
In a preferred embodiment, working principle of the present invention is as follows：
Pilot valve 6 is slidably arranged in the endoporus of valve seat 4, and the cylinder of pilot valve 4 and the endoporus of valve seat 6 are directly
Clearance fit, gap are about 0.05mm-0.1mm, and such gap can not only play damping action and also ensure pilot valve
The stable movement of core 6.
When hydraulic fluid port A is in high pressure, hydraulic fluid port B is in low-pressure state, the pressure of hydraulic fluid port A is through first axis hole 2.1 and first
Speaker hole 2.2, after pushing up the first reversed disabling mechanism 2.3 opening valve port, by the slide contact part and valve seat of pilot valve 6
The direct gap of 4 endoporus flows into control chamber 3, if the pressure rise of hydraulic fluid port A has been more than the pressure of the second elastic component 7 setting, control
Fluid in chamber 3 processed pushes pilot valve 6 to move upwards, and the fluid in control chamber 3 flows to hydraulic fluid port T, main valve plug through swivel nut mouth 8.1
2 open under the action of the pressure difference that fluid flowing generates, and the fluid of hydraulic fluid port A flows into hydraulic fluid port B and plays cushioning effect.
When hydraulic fluid port B is in high pressure, hydraulic fluid port A is in low-pressure state, the pressure of hydraulic fluid port B is through the first radial hole 2.4, the second loudspeaker
Hole 2.5, after pushing up the second reversed disabling mechanism 2.6 opening valve port, by slide contact part and the valve seat 4 of pilot valve 6
Endoporus between gap flow into control chamber 3.If the pressure rise of hydraulic fluid port B has been more than the pressure that second spring 7 is set, control
The fluid of chamber 3 pushes pilot valve 6 to move upwards, and the fluid in control chamber 3 flows to hydraulic fluid port T through swivel nut mouth 8.1, and main valve plug 2 exists
It is opened under the action of the pressure difference that fluid flowing generates, the fluid of hydraulic fluid port B flows into hydraulic fluid port A and plays cushioning effect.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.Therefore, it includes excellent that the following claims are intended to be interpreted as
Select embodiment and fall into having altered and/or changing for the scope of the invention, the change made according to an embodiment of the invention and/
Or modification should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of plug-in rotary buffering valve, which is characterized in that including：
Valve body which is provided with hydraulic fluid port A and hydraulic fluid port B；
Main valve plug is located in the valve body, and be which is provided with the first circulation passage being connected to hydraulic fluid port A and connected with hydraulic fluid port B
The second logical circulation passage；
Valve seat is connected in the main valve plug；
Swivel nut, one end are fixedly connected with the one end of the valve body far from hydraulic fluid port A, and in the swivel nut mouth of swivel nut far from hydraulic fluid port A's
Side is equipped with hydraulic fluid port T；
First elastic component, is located between swivel nut and valve seat；
Pilot valve, one end are crimped on partition hydraulic fluid port T on swivel nut mouth, and the other end passes through swivel nut, the first elastic component to enter valve
In seat, and gap circulation passage is formed between the valve seat；
The control mechanism of control pilot valve Opening pressure is additionally provided on the swivel nut；When hydraulic fluid port A or hydraulic fluid port B pressure are more than control
When the preset pressure of mechanism, pilot valve is open-top, and fluid circulates through the first circulation passage or the second circulation passage via gap
Channel enters swivel nut and from hydraulic fluid port T overflow, and main valve plug opens buffering.
2. trimmer valve according to claim 1, which is characterized in that first circulation passage includes being connected to hydraulic fluid port A
First axis hole and the first speaker hole being connected to first axis hole, first speaker hole are equipped with the first reversed cut-off machine
Structure.
3. trimmer valve according to claim 1 or 2, which is characterized in that second circulation passage includes being connected to hydraulic fluid port B
The first radial hole and the second speaker hole for being connected to the first radial hole, second speaker hole be equipped with the second reversed cut-off
Mechanism.
4. trimmer valve according to claim 3, which is characterized in that the outside that the main valve plug corresponds to the position of hydraulic fluid port B is
The structure that ladder is inwardly recessed, the inside that the main valve plug corresponds to the position of hydraulic fluid port B are inclined-plane, and the valve seat circulates towards first
The one side of channel and the second circulation passage is equipped with convex block and is formed with gap between the exit face and valve seat of the second speaker hole.
5. trimmer valve according to any one of claim 1 to 4, which is characterized in that the pilot valve includes connecting successively
Taper portion, sealing block, the first cylindrical portion, the first slide contact part, the second cylindrical portion and the second slide contact part connect, the spiral shell
Running-on is cone structure, and there are gaps, the diameter of the sealing block to be more than institute between first cylindrical portion and the swivel nut mouth
State the diameter of swivel nut mouth, the diameter of the diameter of first slide contact part and second slide contact part is more than described second
The diameter of cylindrical portion forms 0.05mm- between first slide contact part and second slide contact part and the valve seat
The gap circulation passage of 1mm.
6. trimmer valve according to claim 4 or 5, which is characterized in that the valve seat divides on the opposite face of the swivel nut
The both ends of the protrusion that She You do not stretch out in opposite directions, first elastic component are socketed in respectively on the protrusion.
7. trimmer valve according to any one of claim 1 to 6, which is characterized in that the control mechanism includes the second bullet
Property part, adjusting screw rod and locking nut, described adjusting screw rod one end is plugged in the swivel nut and is threadedly coupled with the swivel nut,
The other end of the adjusting screw rod connects the locking nut, and the locking nut is connected to the swivel nut far from pilot valve
One end of one end outer surface, second elastic component is connected in the pilot valve, and the other end of second elastic component supports
It is connected on the surface of internal cavity of the adjusting screw rod.
8. trimmer valve according to claim 7, which is characterized in that adjustable by adjusting the adjusting screw rod and locking nut
Section is crimped on the pre-pressing force in the pilot valve, to control the Opening pressure of pilot valve.
9. trimmer valve according to any one of claim 1 to 8, which is characterized in that hydraulic fluid port A pressure height, hydraulic fluid port B pressure
It is low, and the pressure of hydraulic fluid port A be more than control mechanism Opening pressure when, the part fluid of hydraulic fluid port A is through the first circulation passage, clearance flow
Circulation passage flows to hydraulic fluid port T overflows；Main valve plug is opened under the action of pressure difference, and fluid flows to hydraulic fluid port B from hydraulic fluid port A and forms buffering.
10. trimmer valve according to any one of claim 1 to 9, which is characterized in that hydraulic fluid port B pressure height, hydraulic fluid port A pressure
It is low, and when the pressure of hydraulic fluid port B is more than the Opening pressure of control mechanism, the fluid of hydraulic fluid port B circulates logical through the second circulation passage, gap
Road flows to hydraulic fluid port T.Main valve plug is opened under the action of pressure difference, and fluid flows to hydraulic fluid port A from hydraulic fluid port B and forms buffering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045910.XA CN108278234B (en) | 2018-01-17 | 2018-01-17 | Plug-in rotary buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045910.XA CN108278234B (en) | 2018-01-17 | 2018-01-17 | Plug-in rotary buffer valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278234A true CN108278234A (en) | 2018-07-13 |
| CN108278234B CN108278234B (en) | 2020-11-24 |
Family
ID=62803841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810045910.XA Active CN108278234B (en) | 2018-01-17 | 2018-01-17 | Plug-in rotary buffer valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278234B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058208A (en) * | 2018-10-17 | 2018-12-21 | 邵玉刚 | A kind of buffer overflow valve |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901061A (en) * | 1958-12-02 | 1962-07-11 | Von Roll Ag | Improvements in or relating to safety valves |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| CN203879834U (en) * | 2014-05-16 | 2014-10-15 | 浙江华益机械有限公司 | Hydraulic valve with vibration and noise reduction function |
| CN105952703A (en) * | 2016-06-22 | 2016-09-21 | 宁波文泽机电技术开发有限公司 | Threaded cartridge type balance valve |
| CN205876839U (en) * | 2016-08-04 | 2017-01-11 | 华侨大学 | Proportion overflow choke valve |
-
2018
- 2018-01-17 CN CN201810045910.XA patent/CN108278234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901061A (en) * | 1958-12-02 | 1962-07-11 | Von Roll Ag | Improvements in or relating to safety valves |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| CN203879834U (en) * | 2014-05-16 | 2014-10-15 | 浙江华益机械有限公司 | Hydraulic valve with vibration and noise reduction function |
| CN105952703A (en) * | 2016-06-22 | 2016-09-21 | 宁波文泽机电技术开发有限公司 | Threaded cartridge type balance valve |
| CN205876839U (en) * | 2016-08-04 | 2017-01-11 | 华侨大学 | Proportion overflow choke valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058208A (en) * | 2018-10-17 | 2018-12-21 | 邵玉刚 | A kind of buffer overflow valve |
| CN109058208B (en) * | 2018-10-17 | 2020-05-22 | 浙江奥诗柯流体控制股份有限公司 | Buffer overflow valve |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108278234B (en) | 2020-11-24 |
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