CN110486345A - Combined hydraulic valve - Google Patents
Combined hydraulic valve Download PDFInfo
- Publication number
- CN110486345A CN110486345A CN201910768068.7A CN201910768068A CN110486345A CN 110486345 A CN110486345 A CN 110486345A CN 201910768068 A CN201910768068 A CN 201910768068A CN 110486345 A CN110486345 A CN 110486345A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil sources
- oil
- sources switching
- switching system
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 description 88
- 239000010720 hydraulic oil Substances 0.000 description 8
- 230000003213 activating effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of Combined hydraulic valve, including oil sources switching system and auxiliary connection control system, the two are connected in series, and the oil sources switching system includes the first oil sources switching system and the second oil sources switching system, and the first oil sources switching system and the second oil sources switching system are in parallel.The first oil sources switching system includes the first oil sources switching valve, and the first oil sources switching valve is 2/2-way solenoid valve；The second oil sources switching system includes the second oil sources switching valve, and the second oil sources switching valve is two-bit triplet solenoid valve.This Combined hydraulic valve is compact-sized, safe and reliable, is able to satisfy the hydraulic circuit arrangement of different flow demand.
Description
Technical field
The present invention relates to a kind of valve, in particular to a kind of Combined hydraulic valve belongs to technical field of engineering machinery.
Background technique
Nowadays engineering machinery has no longer been the machinery for the work of single operating condition, if excavator is in addition to excavating earthwork
Outside, load onto quartering hammer, hydraulic shear become tear building emperorship open.For another example usually as the loading machine of scrapers, external extensive
Various accessories are equipped with as mobile oil sources and realize multi-function operation, are currently known up to 120 kinds of accessory that loading machine can be equipped with.Respectively
Kind accessory has very big difference due to its operating condition difference, the flow etc. of required mobile device (loading machine, excavator).Work at present
Journey machinery does not consider accessory diversification, and the hydraulic oil source of output is single, to limit the application range of engineering machinery.
Summary of the invention
Goal of the invention: the present invention is directed to overcome the shortcomings of existing hydraulic valve, safe and reliable, a variety of oil sources of one kind are provided
Combination valve.
Technical solution: a kind of Combined hydraulic valve, including oil sources switching system and auxiliary connection control system, the two are connected in series,
The oil sources switching system include the first oil sources switching system and the second oil sources switching system, the first oil sources switching system and
Second oil sources switching system is in parallel.The first oil sources switching system includes the first oil sources switching valve, and first oil sources is cut
Changing valve is 2/2-way solenoid valve；The second oil sources switching system includes the second oil sources switching valve, the second oil sources switching
Valve is two-bit triplet solenoid valve.Therefore, three can be realized by the on-off of control two-bit triplet solenoid valve and 2/2-way solenoid valve
Kind flow enters auxiliary connection control system, meets a variety of accessories to the different demands of flow.
Preference guarantees the reliability of oil sources, second oil for the quantity for reducing Hydraulic Elements in oil circuit control arrangement
Source switching system further includes oil sources check valve and overflow valve, flows to the second oil sources switching valve by the oil liquid of oil sources check valve；Institute
State the pressure threshold value that overflow valve sets the second oil sources switching system.
Preference, for the reliability for being further ensured that oil sources, the second oil sources switching system further includes oil circuit check valve,
The second oil sources switching valve, oil circuit check valve are successively flowed to by the oil liquid of oil sources check valve.
Preference, for the quantity for being further reduced Hydraulic Elements in oil circuit control arrangement, the Combined hydraulic valve further includes
Two oil return openings, described two oil return openings communicate.
Preference, for the requirement for meeting different accessory controls, the auxiliary connection control system includes the first auxiliary joint control system
Valve and the second auxiliary linkage control valve；The first auxiliary linkage control valve is two-bit triplet solenoid valve；The second auxiliary joint control system
Valve is three position four-way electromagnetic valve.
The utility model has the advantages that Combined hydraulic valve of the invention is compact-sized, safe and reliable, it is able to satisfy the hydraulic of different flow demand
Oil circuit arrangement.
Detailed description of the invention
Fig. 1 is the example 1 of Combined hydraulic valve of the present invention；
Fig. 2 is the example 2 of Combined hydraulic valve of the present invention；
Fig. 3 is the example 3 of Combined hydraulic valve of the present invention；
Fig. 4 is the example 4 of Combined hydraulic valve of the present invention；
Fig. 5 is the example 5 of Combined hydraulic valve of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and preferred embodiment
The present invention is described in further detail, and preferred embodiments are merely illustrative of the invention, is not intended to be limiting of the invention
Protection scope.
As shown in Figure 1, a kind of Combined hydraulic valve, including oil sources switching system 1, auxiliary connection control system 2 and two oil returns
Mouth 3, the oil sources switching system 1 and auxiliary connection control system 2 are connected in series, and described two oil return openings 3 communicate.The oil sources switching
System 1 includes the first oil sources switching system 11 and the second oil sources switching system 12, the first oil sources switching system 11 and second
Oil sources switching system 12 is in parallel.The first oil sources switching system 11 includes the first oil sources switching valve 111, first oil sources
Switching valve 111 is 2/2-way solenoid valve, and oil inlet is A mouthfuls.The second oil sources switching system 12 switches including the second oil sources
Valve 121, oil sources check valve 122, overflow valve 123 and oil circuit check valve 124, oil inlet are H mouthfuls.The second oil sources switching valve
121 be two-bit triplet solenoid valve, and it is unidirectional successively to flow to the second oil sources switching valve 121, oil circuit by the oil liquid of oil sources check valve 122
Valve 124.The overflow valve 123 sets the pressure threshold value of the second oil sources switching system 12.The auxiliary connection control system 2 is wrapped
Include the first auxiliary linkage control valve 21 and the second auxiliary linkage control valve 22；The first auxiliary linkage control valve 21 is two-bit triplet electromagnetism
Valve；The second auxiliary linkage control valve 22 is three position four-way electromagnetic valve.F mouthfuls are auxiliary connection oil return opening, avoid making for back leakage connection
With.The G mouthfuls of oil return openings for the Combined hydraulic valve are finally flowed out through G mouthfuls together with the oil liquid of auxiliary connection oil return.
Whether the hydraulic oil source that the second oil sources switching valve 121 controls H mouthfuls participates in work, when in position shown in Fig. 1, H
The hydraulic oil of mouth is directly flowed out through G mouthfuls.In the oil circuit that H mouthfuls of oil liquid enters system after activating the second oil sources switching valve 121, H
The maximum pressure of oral fluid pressure oil is set by overflow valve 123, when H mouthfuls of pressure are more than pressure set by overflow valve 123, H oral fluid pressure
Oil liquid flows to G mouthfuls by overflow valve 123.First oil sources switching valve 111 controls whether A mouthfuls of hydraulic oil participates in work, when being in
Shown in Fig. 1 when position, A mouthfuls of hydraulic oil does not enter in oil circuit, and A mouthfuls of oil liquid, which enter, after activating the first oil sources switching valve 111 is
In the oil circuit of system.The oil liquid of A mouthfuls of oil liquid and H mouthful can all enter the first auxiliary linkage control valve 21 and the second auxiliary linkage control valve
22, therefore can realize that three kinds of flows enter the by the on-off of the first oil sources switching valve 111 of control and the second oil sources switching valve 121
One auxiliary linkage control valve 21 and the second auxiliary linkage control valve 22, i.e. A mouthful of oil liquid enters, H mouthfuls of oil liquid entrance, A mouthfuls of oil liquid
Oil liquid with H mouthfuls enters together.First assists linkage control valve 21 as the switching valve of flow, it can be achieved that hydraulic oil flows to B mouthfuls or C
The selection of the switching of mouth.Second auxiliary linkage control valve 22, which can be realized, to be flowed to D mouthfuls by hydraulic oil then E mouthfuls of oil returns, hydraulic oil flows to E mouthfuls then
The mode of D mouthfuls of oil returns.
As shown in Fig. 2, cancelling oil circuit check valve 124 can realize that A mouthfuls are controlled with H mouthfuls of oil liquid maximum pressures by overflow valve 123,
A mouthfuls and H mouthfuls of oil liquid interflow after the first oil sources switching valve 111, the second oil sources switching valve 121 obtain electric, when system pressure is higher than
When pressure set by overflow valve 123, A mouthfuls flow to G mouthfuls after the opening of overflow valve 123 simultaneously with H mouthfuls of oil liquid.In addition, such as Fig. 3,
Shown in Fig. 4, Fig. 5, to cooperate different accessories, auxiliary connection control system 2 may also include third auxiliary linkage control valve 23 etc..
Although be described in detail above to the present invention in conjunction with the embodiments, the technical personnel in the technical field's energy
It is enough to understand, without departing from the purpose of the present invention, above-described embodiment can also be changed or be changed, still fall in this
In the protection scope of invention.
Claims (6)
1. a kind of Combined hydraulic valve, including oil sources switching system (1) and auxiliary connection control system (2), the two is connected in series, feature
Be: the oil sources switching system (1) includes the first oil sources switching system (11) and the second oil sources switching system (12), and described the
One oil sources switching system (11) and the second oil sources switching system (12) are in parallel.
2. Combined hydraulic valve according to claim 1, it is characterised in that: the first oil sources switching system (11) includes the
One oil sources switching valve (111), the first oil sources switching valve (111) are 2/2-way solenoid valve；Second oil sources switching system
System (12) includes the second oil sources switching valve (121), and the second oil sources switching valve (121) is two-bit triplet solenoid valve.
3. Combined hydraulic valve according to claim 2, it is characterised in that: the second oil sources switching system (12) further includes
Oil sources check valve (122) and overflow valve (123) flow to the second oil sources switching valve by the oil liquid of oil sources check valve (122)
(121)；The overflow valve (123) sets the pressure threshold value of the second oil sources switching system (12).
4. Combined hydraulic valve according to claim 3, it is characterised in that: the second oil sources switching system (12) further includes
It is unidirectional successively to flow to the second oil sources switching valve (121), oil circuit by the oil liquid of oil sources check valve (122) for oil circuit check valve (124)
Valve (124).
5. Combined hydraulic valve according to claim 4, it is characterised in that: the Combined hydraulic valve further includes two oil return openings
(3), described two oil return openings (3) communicate.
6. Combined hydraulic valve according to any one of claims 1 to 5, it is characterised in that: auxiliary connection control system (2) packet
Include the first auxiliary linkage control valve (21) and the second auxiliary linkage control valve (22)；First auxiliary linkage control valve (21) is two three
Three-way electromagnetic valve；Second auxiliary linkage control valve (22) is three position four-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910768068.7A CN110486345A (en) | 2019-08-20 | 2019-08-20 | Combined hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910768068.7A CN110486345A (en) | 2019-08-20 | 2019-08-20 | Combined hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486345A true CN110486345A (en) | 2019-11-22 |
Family
ID=68552176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910768068.7A Pending CN110486345A (en) | 2019-08-20 | 2019-08-20 | Combined hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486345A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829011A (en) * | 2012-08-21 | 2012-12-19 | 中传重型装备有限公司 | Double-pump confluence hydraulic loop combined valve and application thereof |
| CN203214468U (en) * | 2013-04-16 | 2013-09-25 | 中联重科股份有限公司渭南分公司 | Combination valve block and hydraulic control system and excavator comprising same |
| CN203906426U (en) * | 2014-05-23 | 2014-10-29 | 兰州兰石集团有限公司 | Three-stage logic combination valve for unloading of large hydraulic system |
| CN204327629U (en) * | 2014-12-10 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of flow control combination brake switch and proporting |
| CN210829934U (en) * | 2019-08-20 | 2020-06-23 | 江苏柳工机械有限公司 | Hydraulic combination valve |
-
2019
- 2019-08-20 CN CN201910768068.7A patent/CN110486345A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829011A (en) * | 2012-08-21 | 2012-12-19 | 中传重型装备有限公司 | Double-pump confluence hydraulic loop combined valve and application thereof |
| CN203214468U (en) * | 2013-04-16 | 2013-09-25 | 中联重科股份有限公司渭南分公司 | Combination valve block and hydraulic control system and excavator comprising same |
| CN203906426U (en) * | 2014-05-23 | 2014-10-29 | 兰州兰石集团有限公司 | Three-stage logic combination valve for unloading of large hydraulic system |
| CN204327629U (en) * | 2014-12-10 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of flow control combination brake switch and proporting |
| CN210829934U (en) * | 2019-08-20 | 2020-06-23 | 江苏柳工机械有限公司 | Hydraulic combination valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201118 Address after: No. 588 Yancheng South Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Applicant after: LIUGONG CHANGZHOU MACHINERY Co.,Ltd. Address before: The town of Nanjing Road 212002 Zhenjiang city of Jiangsu Province, Runzhou District No. 1 Applicant before: Jiangsu Liugong Machinery Co.,Ltd. |
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| TA01 | Transfer of patent application right |