CN202937535U - Hydraulic reversing combination valve - Google Patents
Hydraulic reversing combination valve Download PDFInfo
- Publication number
- CN202937535U CN202937535U CN 201220329421 CN201220329421U CN202937535U CN 202937535 U CN202937535 U CN 202937535U CN 201220329421 CN201220329421 CN 201220329421 CN 201220329421 U CN201220329421 U CN 201220329421U CN 202937535 U CN202937535 U CN 202937535U
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- Prior art keywords
- hydraulic control
- special
- control valves
- valve
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic reversing combination valve. The value is used in a pumping and pump hydraulic system of a towed concrete pumper. The valve comprises three special hydraulic control valves, wherein three hydraulic control valves are overlaid in an integrated valve plate in a fastening mode, inside pipelines of three hydraulic control valves are communicated, small throttle holes are arranged on valve rods of special hydraulic control valves, three hydraulic control valves are overlaid in the integrated valve plate in a fastening mode, the structure is simplified, the size is reduced, and the system is convenient to arranged. Besides, the three special hydraulic control valves are non-standard members, the flow is large, inside pipelines of three hydraulic control valves are communicated, transition valve blocks are not required to be arranged among hydraulic control valves, the structure is simple, small throttle holes are arranged on valve rods of special hydraulic control valves, the hydraulic oil in the system is effectively buffered and throttled, the stability of the system in the operation is guaranteed, the hydraulic impact for special hydraulic control valves is reduced and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of combination brake switch and proporting, and is espespecially a kind of for the pumping of towed concrete pump car and the hydraulic pressure reversing combined valve in pump pendulum hydraulic system.
Background technique
What the hydraulic system of at present domestic and international towed concrete pump car all adopted is general electro-hydraulic control valve, along with the development of towed concrete pump towards large flow and quick commutation direction, traditional general electro-hydraulic control valve more and more is difficult to be suitable for thereon, and its reason mainly is:
At first, the oscillating oil cylinder of described towed concrete pump requires to swing rapidly, just require control valve that large discharge value is arranged for this reason, and the discharge value of traditional general electro-hydraulic control valve is limited, and, described traditional general electro-hydraulic control valve is along with the increase of latus rectum, and its volume and price also correspondingly increase significantly;
Secondly, the swing cylinder of described towed concrete pump also requires to swing rapidly, thereby larger to the hydraulic shock of control valve, and then, affect described traditional general electro-hydraulic control valve working life;
In addition, the control valve quantity of described towed concrete pump is many and distribute discretely, thereby occupies larger space.
The model utility content
For the problem in background technique, the utility model provides that a kind of flow is large, the hydraulic pressure reversing combined valve of long service life and compact structure.
A kind of hydraulic pressure reversing combined valve that the utility model provides, be used in the pumping and pump pendulum hydraulic system of towed concrete pump car, it comprises three special-purpose hydraulic control valve, the described three fastening stacks of special-purpose hydraulic control valve are arranged in integrated valve plate, and the internal duct of described three special-purpose hydraulic control valve communicates, and is provided with throttling pore in the valve rod of described special-purpose hydraulic control valve.
Based on disclosing of above technological scheme, the utility model possesses following beneficial effect:
(1) the described three fastening stacks of special-purpose hydraulic control valve are arranged in integrated valve plate, simplify structure, reduce size, facilitate system layout, in addition, described three special-purpose hydraulic control valve sizes arrange unrestricted, and the flow set that arranges described three special-purpose hydraulic control valve that can depend on actual need gets very large.
(2) internal duct of described three special-purpose hydraulic control valve communicates, and need not to arrange any transition valve piece between each described special-purpose hydraulic control valve, and is simple in structure.
(3) valve rod in described special-purpose hydraulic control valve is provided with described throttling pore, and the hydraulic oil in the throttling buffering system to be guaranteeing system's traveling comfort effectively, and reduces the hydraulic shock to described special-purpose hydraulic control valve, increases the service life.
Description of drawings
Fig. 1 is the structural representation of the hydraulic pressure reversing combined valve that provides of the utility model.
The drawing reference numeral explanation
Hydraulic pressure reversing combined valve 100
The first special-purpose hydraulic control valve 1
The second special-purpose hydraulic control valve 2
The 3rd special-purpose hydraulic control valve 3
Integrated valve plate 4
Throttling pore 5
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment:
see also Fig. 1, a kind of hydraulic pressure reversing combined valve 100 that the utility model provides is used in the pumping and pump pendulum hydraulic system of towed concrete pump car, it comprises that three special-purpose hydraulic control valve are specially the first special-purpose hydraulic control valve 1, the second special-purpose hydraulic control valve 2 and the 3rd special-purpose hydraulic control valve 3, described three special-purpose hydraulic control valve (1, 2 and 3) be non-standard component, for satisfying the specific (special) requirements of native system super-flow, described three special-purpose hydraulic control valve (1, 2 and 3) valve body and valve rod have been taked the structure of super large latus rectum and overlength length, described three special-purpose hydraulic control valve (1, 2 and 3) fastening stack is arranged in integrated valve plate 4, and described three special-purpose hydraulic control valve (1, 2 and 3) internal duct communicates, in described special-purpose hydraulic control valve (1, 2 or 3) valve rod is provided with throttling pore 5.
The utility model possesses following beneficial effect:
(1) the fastening stack of described three special-purpose hydraulic control valve (1,2 and 3) is arranged in described integrated valve plate 4, simplify structure, reduce size, facilitate system layout, in addition, described three special-purpose hydraulic control valve (1,2 and 3) are the non-standard component size and arrange unrestrictedly, and the flow set that arranges described three special-purpose hydraulic control valve (1,2 and 3) that can depend on actual need gets very large.
(2) internal duct of described three special-purpose hydraulic control valve (1,2 and 3) communicates, thereby described three special-purpose hydraulic control valve need not to arrange any transition valve piece between (1,2 and 3), and are simple in structure.
(3) valve rod in described special-purpose hydraulic control valve (1,2 or 3) is provided with described throttling pore 5, hydraulic oil in the throttling buffering system is to guarantee system's traveling comfort effectively, and reduce the hydraulic shock to described special-purpose hydraulic control valve (1,2 or 3), increase the service life.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all in protection domain of the present utility model.
Claims (1)
1. hydraulic pressure reversing combined valve, be used in the pumping and pump pendulum hydraulic system of towed concrete pump car, it is characterized in that, comprise three special-purpose hydraulic control valve, the described three fastening stacks of special-purpose hydraulic control valve are arranged in integrated valve plate, and the internal duct of described three special-purpose hydraulic control valve communicates, and is provided with throttling pore in the valve rod of described special-purpose hydraulic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329421 CN202937535U (en) | 2012-07-09 | 2012-07-09 | Hydraulic reversing combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329421 CN202937535U (en) | 2012-07-09 | 2012-07-09 | Hydraulic reversing combination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937535U true CN202937535U (en) | 2013-05-15 |
Family
ID=48321777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220329421 Expired - Fee Related CN202937535U (en) | 2012-07-09 | 2012-07-09 | Hydraulic reversing combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454732A (en) * | 2014-12-01 | 2015-03-25 | 天地上海采掘装备科技有限公司 | Valve group for coal cutter |
-
2012
- 2012-07-09 CN CN 201220329421 patent/CN202937535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454732A (en) * | 2014-12-01 | 2015-03-25 | 天地上海采掘装备科技有限公司 | Valve group for coal cutter |
| CN104454732B (en) * | 2014-12-01 | 2016-08-24 | 天地上海采掘装备科技有限公司 | A kind of coal-winning machine valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20140709 |
|
| EXPY | Termination of patent right or utility model |