CN206972640U - Bidirectional balanced valve - Google Patents
Bidirectional balanced valve Download PDFInfo
- Publication number
- CN206972640U CN206972640U CN201720864345.0U CN201720864345U CN206972640U CN 206972640 U CN206972640 U CN 206972640U CN 201720864345 U CN201720864345 U CN 201720864345U CN 206972640 U CN206972640 U CN 206972640U
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- valve
- balance
- valve body
- core
- screw plug
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 18
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
It the utility model is related to a kind of Bidirectional balanced valve, belong to mechanical-hydraulic technical field, including valve body, valve body lower end offers two hydraulic fluid ports one, valve body top offers two hydraulic fluid ports two, two check valves and two overflow valves are additionally provided with valve body, balance valve core is provided with valve body, the space for balancing valve core or so is divided into inner chamber and valve core cavity two spaces by the valve element of check valve, aperture one and aperture two are offered on balance valve core, balance valve core both ends screw thread is provided with screw plug two, valve body both sides screw thread is provided with screw plug one, space inside screw plug one is body cavity, the spring of check valve is fixed on screw plug two, balance valve spring is fixed with screw plug one, balanced valve spring housing is on balance valve core.The utility model makes hydraulic motor reach the stable characteristic of keying during rotating；Hydraulic motor is protected in the case where hydraulic system is overloaded, also possesses pressure selection function.
Description
Technical field
A kind of Bidirectional balanced valve is the utility model is related to, belongs to mechanical-hydraulic technical field.
Background technology
With national economy and the rapid development of infrastructure, engineering machinery, handling machinery obtain extremely wide
General application, raising, rotating mechanism are widely applied in its field, and balanced valve is exactly to control liquid in raising, Rotary Loop
The key element of pressure motor work.Existing hydraulic motor Bidirectional balanced valve is all in the luffing balance controlled for hydraulic jack
Transformed on the basis of valve or flexible balanced valve, although improving the use range of identical product to a certain extent,
Because lacking specific aim, in the presence of it is many shortcomings that.The utility model patent of Application No. 201520362125.9 discloses
A kind of Bidirectional balanced valve, the valve include valve body, the balanced valve in two valve pockets for being provided with two valve pockets.Because main valve plug is adopted
With pilot control structure, one overflow valve must be set on oil circuit without safety overflow function, during use again；Do not possess pressure
Power selection function, for needing one shuttle valve of additional when raising, rotating mechanism hydraulic circuit；Balanced valve used in the valve
Structure has used substantial amounts of sealing ring to keep the sealing effectiveness of valve, adds processing, assembly difficulty, the probability of leakage of oil, reduction
Reliability.
Utility model content
The purpose of this utility model is the deficiencies in the prior art to be solved, there is provided one kind can make hydraulic motor exist
Opened and closed during rotating steadily, hydraulic motor is protected in the case where hydraulic system is overloaded, while be also equipped with pressure selection work(
The Bidirectional balanced valve of energy.
The utility model is achieved through the following technical solutions：
I.e. a kind of Bidirectional balanced valve, including valve body, valve body lower end offer two hydraulic fluid ports one, and valve body top offers two
Hydraulic fluid port two, hydraulic fluid port two are provided with logical oil draining bolt, and two check valves are additionally provided with valve body, is provided with valve body and balances valve core, two
Check valve is arranged in balance valve core, and the center for balancing valve core is entity, and the valve element of check valve will balance valve core or so
Space be divided into inner chamber and valve core cavity two spaces, inner space is inner chamber, is opened up on the balance valve core of inner chamber
There is an aperture one, offer aperture two on the balance valve core in valve core cavity, hydraulic fluid port one passes through the valve channel opened on valve body
One connects with aperture one, and balance valve core both ends screw thread is provided with screw plug two, and valve body both sides screw thread is provided with screw plug one, screw plug one
Internal space is body cavity, and the spring of check valve is fixed on screw plug two, and balance valve spring is fixed with screw plug one, is put down
Weighing apparatus valve spring is enclosed on balance valve core, in valve body on be additionally provided with the valve channel two and valve channel three connected with aperture two,
Two valve channels three are respectively communicated with a hydraulic fluid port two, are horizontally through valve channel three and are provided with overflow valve, balance on valve core also
Two apertures three symmetrically are offered, valve channel four are further opened with valve body, valve channel four is positioned at balance valve core center
Outside, and valve channel four is connected with the shuttle valve hole being opened on valve body.
The utility model is to increase back pressure in the hydraulic circuit of hydraulic motor, hydraulic motor is reached during rotating
To the stable characteristic of keying；Overflow valve and shuttle valve have been merged simultaneously, hydraulic motor is protected in the case where hydraulic system is overloaded,
Possesses pressure selection function；Reduce the quantity of sealing ring, processing, assembling are more convenient, and better tightness, also improving can
By property.
Further preferably, the screw plug one, the connection place of the screw plug two and valve body are equipped with sealing ring.
Further preferably, the valve element of the overflow valve connects with hydraulic fluid port two.
Further preferably, the valve channel four is an annular passage.
Compared with prior art, beneficial effect possessed by the utility model is：
The utility model is to increase back pressure in the hydraulic circuit of hydraulic motor, hydraulic motor is reached during rotating
To the stable characteristic of keying；Overflow valve and shuttle valve have been merged simultaneously, hydraulic motor is protected in the case where hydraulic system is overloaded,
Possesses pressure selection function；Reduce the quantity of sealing ring, processing, assembling are more convenient, and better tightness, also improving can
By property.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is external structure schematic diagram of the present utility model；
Fig. 3 is Section A-A structural representation in Fig. 1；
Fig. 4 is the hydraulic schematic diagram of the utility model use state.
In figure：1st, valve body；2nd, oil draining bolt is led to；3rd, valve channel one；4th, aperture one；5th, inner chamber；6th, check valve；7th, aperture
Two；8th, valve channel two；9th, valve channel three；10th, valve core is balanced；11st, valve core cavity；12nd, screw plug one；13rd, screw plug two；
14th, damping plug；15th, body cavity；16th, valve spring is balanced；17th, aperture three；18th, valve channel four；19th, shuttle valve hole；20th, overflow
Valve；21st, reversal valve；22nd, hydraulic motor；23rd, brake；24th, hydraulic fluid port one；25th, hydraulic fluid port two.
Embodiment
Below against accompanying drawing, specific embodiment of the present utility model is described in further detail.
A kind of Bidirectional balanced valve as shown in Figure 1 to Figure 3, including valve body 1, the lower end of valve body 1 offer two hydraulic fluid ports 1,
The top of valve body 1 offers two hydraulic fluid ports 2 25, and hydraulic fluid port 2 25 is provided with logical oil draining bolt 2, two check valves 6 are additionally provided with valve body 1,
Balance valve core 10 is provided with valve body 1, two check valves 6 are arranged in balance valve core 10, and the center of balance valve core 10 is
The space for balancing valve core 10 or so is divided into inner chamber 5 and the two spaces of valve core cavity 11 by entity, the valve element of check valve 6,
Inner space is inner chamber 5, offers aperture 1 on the balance valve core 10 of inner chamber 5, the balance valve core in valve core cavity 11
Aperture 27 is offered on 10, hydraulic fluid port 1 is connected by the valve channel 1 opened on valve body 1 with aperture 1, balanced valve valve
The both ends screw thread of core 10 is provided with screw plug 2 13, and the both sides screw thread of valve body 1 is provided with screw plug 1, and the space inside screw plug 1 is valve
Intracoelomic cavity 15, the spring of check valve 6 are fixed on screw plug 2 13, and screw plug 1, the connection place of screw plug 2 13 and valve body 1 are equipped with
Sealing ring, balance valve spring 16 is fixed with screw plug 1, balance valve spring 16 is enclosed on balance valve core 10, in valve body 1
On be additionally provided with the valve channel 28 and valve channel 39 connected with aperture 27, two valve channels 39 are respectively communicated with an oil
Mouth 2 25, is horizontally through valve channel 39 and is provided with overflow valve 20, the valve element of overflow valve 20 connects with hydraulic fluid port 2 25, balanced valve valve
Two apertures 3 17 are also symmetrically offered on core 10, the valve channel 4 18 of shape in a ring, valve channel are further opened with valve body 1
4 18 positioned at the outside in the center of balance valve core 10, and valve channel 4 18 is connected with the shuttle valve hole 19 being opened on valve body 1.
As shown in figure 4, the utility model is when in use, be connected in hydraulic motor 22 by leading to oil draining bolt 2 two
On hydraulic fluid port so that two hydraulic fluid ports 2 25 connect with two hydraulic fluid ports of hydraulic motor 22 respectively, shuttle valve hole 19 and hydraulic motor 22
The control mouth connection of brake 23, two hydraulic fluid ports 1 connect with A, B hydraulic fluid port of reversal valve 21 respectively.
The course of work：
In use, when reversal valve 21 is in middle position, oil pump coming oil enters from P hydraulic fluid ports, two-way flat from T hydraulic fluid port oil return boxes
Weighing apparatus valve and hydraulic motor 22 do not work.
When reversal valve 21 is in P → A commutation positions, A hydraulic fluid port of the hydraulic oil through reversal valve 21 flows into Bidirectional balanced valve
One of hydraulic fluid port 1, inner chamber 5 is flowed into by valve channel 1 and aperture 1, with the increase of high pressure oil pressure, overcome
The bearing force of the spring of check valve 6, check valve 6 is opened, then pass through aperture 27, valve channel 28, valve channel 39 and flow into it
In a hydraulic fluid port 2 25, hydraulic oil enters hydraulic motor 22, and by the internal structure of hydraulic motor 22, hydraulic oil is from hydraulic motor 22
Outflow, by another hydraulic fluid port 2 25 of the logical inflow Bidirectional balanced valve of oil draining bolt 2, lead to then in turn through valve channel 39, valve body
Aperture 27 on road 28 and balance valve core 10 flows into valve core cavity 11, because valve core cavity 11 is by screw plug 2 13 and unidirectional
Valve 6 form a closing space, so present case be hydraulic oil can not be by the normal oil return of passage of Bidirectional balanced valve.
With the increase of high pressure oil pressure, higher-pressure region is formed at hydraulic fluid port 1, hydraulic oil is entered by valve channel 1 and damping plug 14
Enter body cavity 15, then overcome the bearing force of balance valve spring 16, make balance valve core 10 toward moving right, in mobile process
In, hydraulic oil can by balancing aperture 3 17 on valve core 10 and valve channel 4 18 enters shuttle valve hole 19, shuttle valve hole 19 with
The control chamber of the brake 23 of hydraulic motor 22 is connected, and opens brake 23, hydraulic motor 22 is in the shape that can be rotated freely
State.Balance valve core 10 continues toward moving right, and can make valve channel 28, balance aperture 1 and valve channel one on valve core 10
3 insertions, fluid are flowed into the B hydraulic fluid ports of reversal valve 21 by another hydraulic fluid port 1, eventually pass back to fuel tank, this completes one again
Normal way to cycle oil, the rotary work of hydraulic motor 22.Overflow valve 20 is additionally provided with valve body 1, can root when system pressure is too high
According to setting safe pressure unloading protecting hydraulic motor 22.
Bidirectional balanced valve employs symmetrical structure, and when reversal valve 21 is in P → B commutation positions, two hydraulic fluid ports 1 are handed over
Swap-in oil, oil return, the course of work is identical, equally has the function that return oil pressure, opens and closes balance.
In description of the present utility model, term " interior ", " outer ", " longitudinal direction ", " transverse direction ", " on ", " under ", " top ", " bottom "
Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly
Type rather than require that the utility model must be with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model
Limitation.
Claims (4)
1. a kind of Bidirectional balanced valve, including valve body (1), valve body (1) lower end offers two hydraulic fluid ports one (24), valve body (1) top
Two hydraulic fluid ports two (25) are offered, hydraulic fluid port two (25) is provided with logical oil draining bolt (2), two check valves are additionally provided with valve body (1)
(6), it is characterised in that：Balance valve core (10) is provided with the valve body (1), described two check valves (6) are arranged on balanced valve
In valve element (10), the center of balance valve core (10) is entity, and the valve element of check valve (6) will balance the sky of valve core (10) left and right
Between be divided into inner chamber (5) and valve core cavity (11) two spaces, inner space is inner chamber (5), the balanced valve valve of inner chamber (5)
Offer aperture one (4) on core (10), aperture two (7), hydraulic fluid port are offered on the balance valve core (10) in valve core cavity (11)
One (24) are connected by the valve channel one (3) opened on valve body (1) with aperture one (4), balance valve core (10) both ends screw thread
Screw plug two (13) is installed, valve body (1) both sides screw thread is provided with screw plug one (12), and the internal space of screw plug one (12) is in valve body
Chamber (15), the spring of check valve (6) are fixed on screw plug two (13), and balance valve spring (16) is fixed with screw plug one (12),
Balance valve spring (16) is enclosed in balance valve core (10), in valve body (1) on be additionally provided with the valve channel connected with aperture two (7)
Two (8) and valve channel three (9), two valve channels three (9) are respectively communicated with a hydraulic fluid port two (25), are horizontally through valve channel
Three (9) are provided with overflow valve (20), also symmetrically offer two apertures three (17) on balance valve core (10), valve body is also opened on (1)
Provided with valve channel four (18), valve channel four (18) is located at the outside in balance valve core (10) center, and valve channel four
(18) it is connected with the shuttle valve hole (19) being opened on valve body (1).
2. Bidirectional balanced valve according to claim 1, it is characterised in that：The screw plug one (12), the screw plug two (13)
Sealing ring is equipped with the connection place of valve body (1).
3. Bidirectional balanced valve according to claim 1, it is characterised in that：The valve element of the overflow valve (20) and hydraulic fluid port two
(25) connect.
4. Bidirectional balanced valve according to claim 1, it is characterised in that：The valve channel four (18) is one annular
Passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864345.0U CN206972640U (en) | 2017-07-17 | 2017-07-17 | Bidirectional balanced valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864345.0U CN206972640U (en) | 2017-07-17 | 2017-07-17 | Bidirectional balanced valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972640U true CN206972640U (en) | 2018-02-06 |
Family
ID=61401837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720864345.0U Active CN206972640U (en) | 2017-07-17 | 2017-07-17 | Bidirectional balanced valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972640U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296579A (en) * | 2018-11-30 | 2019-02-01 | 杭州力龙液压有限公司 | Balanced valve and hydraulic motor |
| CN111120446A (en) * | 2020-02-11 | 2020-05-08 | 焦彪彪 | Pressure control valve |
| CN111677712A (en) * | 2020-07-21 | 2020-09-18 | 徐州徐工随车起重机有限公司 | Rotary buffer valve device, speed reducer and using method of speed reducer |
| CN113898629A (en) * | 2021-09-22 | 2022-01-07 | 江苏汇智高端工程机械创新中心有限公司 | Brake control valve and bidirectional balance valve integrated with same |
| CN113898628A (en) * | 2021-09-22 | 2022-01-07 | 江苏汇智高端工程机械创新中心有限公司 | Super-large flow bidirectional balance valve |
| CN115478977A (en) * | 2022-09-29 | 2022-12-16 | 青岛力克川液压机械有限公司 | Hydraulic motor device capable of acquiring output rotating speed in real time |
-
2017
- 2017-07-17 CN CN201720864345.0U patent/CN206972640U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296579A (en) * | 2018-11-30 | 2019-02-01 | 杭州力龙液压有限公司 | Balanced valve and hydraulic motor |
| CN111120446A (en) * | 2020-02-11 | 2020-05-08 | 焦彪彪 | Pressure control valve |
| CN111120446B (en) * | 2020-02-11 | 2021-10-15 | 维都利阀门有限公司 | Pressure control valve |
| CN111677712A (en) * | 2020-07-21 | 2020-09-18 | 徐州徐工随车起重机有限公司 | Rotary buffer valve device, speed reducer and using method of speed reducer |
| CN113898629A (en) * | 2021-09-22 | 2022-01-07 | 江苏汇智高端工程机械创新中心有限公司 | Brake control valve and bidirectional balance valve integrated with same |
| CN113898628A (en) * | 2021-09-22 | 2022-01-07 | 江苏汇智高端工程机械创新中心有限公司 | Super-large flow bidirectional balance valve |
| CN113898628B (en) * | 2021-09-22 | 2023-09-26 | 江苏汇智高端工程机械创新中心有限公司 | Super-large flow bidirectional balance valve |
| CN113898629B (en) * | 2021-09-22 | 2024-01-26 | 江苏汇智高端工程机械创新中心有限公司 | Brake control valve and bidirectional balance valve integrated with same |
| CN115478977A (en) * | 2022-09-29 | 2022-12-16 | 青岛力克川液压机械有限公司 | Hydraulic motor device capable of acquiring output rotating speed in real time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 273522 No. 2998, Yihua Road, Tangcun Town, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong yikaide Hydraulic Co.,Ltd. Address before: 273522 No. 2998, Yihua Road, Tangcun Town, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YIKDE HYDRAULIC CO.,LTD. |