CN101704486B - Pilot control valve for aboard duplex hoist brake of autocrane - Google Patents
Pilot control valve for aboard duplex hoist brake of autocrane Download PDFInfo
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- CN101704486B CN101704486B CN2009101541460A CN200910154146A CN101704486B CN 101704486 B CN101704486 B CN 101704486B CN 2009101541460 A CN2009101541460 A CN 2009101541460A CN 200910154146 A CN200910154146 A CN 200910154146A CN 101704486 B CN101704486 B CN 101704486B
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Abstract
The invention discloses a pilot control valve for an aboard duplex hoist brake of an autocrane. An inner cavity of a first output oil port of a valve body is connected with an output port of a first inversing valve; the end face of the first output oil port is in screw connection with a first damper adapter in a sealing way; the middle of the first damper adapter is embedded with a damper; an inner cavity of a second output oil port is connected with an output port of a second reversing valve; the end face of the second output oil port is in screw connection with a second damper adaptor in a sealing way; the middle of the second damper adaptor is also embedded with a damper; and the first reversing valve is provided with an oil inlet and an oil outlet, and correspondingly, the second reversing valve is also provided with an oil inlet and an oil outlet. The output oil ports are provided with damper adaptors, and the dampers in the damper adaptors can be replaced according to characteristics, so the matching of the whole structure is improved and the assembly and disassembly are convenient; the valve body is inserted and in threaded screw connection with valves, so the whole structure is compact; and the outside of the valve body is provided with a control oil port, an oil path controlled thereby has small interference, and a system is stable and has good reliability.
Description
Technical field
The present invention relates to the technical field of automobile-used hydraulic valve, particularly a kind of duplex hoist brake pilot-actuated valve of getting on the bus of car hosit.
Background technology
Be applicable to the hydraulic valve on the car hosit, its kind is more, is no lack of the pilot control system of adopting is arranged, for this series products, one must be considered the matching with whole corollary system, and promptly the delivery rate of guide's fluid must mate with the overall operation characteristic of total system, so should increase the controllability of flow, or employing flow regulating valve structure, or the employing damping structure, both all can, former structure is bigger, the modulability of latter's flow a little less than, should make according to different use occasions; It two is to consider stability, should be independent to the setting of control oil channel, should not be subjected to external disturbance, especially to the duplex hoist brake system of getting on the bus,, certainly will influence the stable of whole service in case control oil channel goes wrong, even can cause operational dangerous, so control must be reliable for the guide.
Summary of the invention
Technical matters to be solved by this invention is the present situation at prior art, and a kind of compact conformation is provided, the duplex hoist brake pilot-actuated valve of getting on the bus of simple operation, easy accessibility, system stability and failure-free car hosit
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of duplex hoist brake pilot-actuated valve of getting on the bus of car hosit, comprise valve body, be fitted with first change-over valve, second change-over valve, the first damping joint and the second damping joint on this valve body, this valve body also is shaped on oil inlet, return opening and first output oil port, second output oil port; The first output oil port inner chamber is connected with the delivery port of first change-over valve, and the first output oil port end face and the first damping joint sealing spin, and is embedded with damping in the middle of this first damping joint, and the delivery rate of first change-over valve is controlled in this damping; The second output oil port inner chamber is connected with the delivery port of second change-over valve, and the second output oil port end face and the second damping joint sealing spin, and also is embedded with damping in the middle of this second damping joint, and the delivery rate of second change-over valve is controlled in this damping; Also be shaped on oil inlet and return opening on first change-over valve, correspondingly, also be shaped on oil inlet and return opening on second change-over valve, and the oil inlet of the oil inlet of first change-over valve, second change-over valve is connected with oil inlet respectively; And the return opening of the return opening of first change-over valve, second change-over valve is connected with return opening respectively.
The measure of taking also comprises:
The first above-mentioned change-over valve two ends are equipped with spring reset end and hydraulic-driven end, and correspondingly, the second above-mentioned change-over valve two ends also are equipped with spring reset end and hydraulic-driven end; Be shaped on first control port and second control port on the above-mentioned valve body, and this first control port is connected with the above-mentioned first change-over valve hydraulic-driven end, correspondingly, this second control port is connected with the above-mentioned second change-over valve hydraulic-driven end.
Above-mentioned first control port, second control port all are positioned on the right lateral surface of valve body, and become same straight-though arrangement, and also all are shaped on the connection screw thread on its port.
The first above-mentioned damping joint, the second damping joint are positioned at the front of valve body, and arrange in line; Above-mentioned oil inlet, return opening are positioned at the upper surface of valve body, and the port of this oil inlet, return opening all is shaped on to connect and uses screw thread.
Above-mentioned first change-over valve, second change-over valve are positioned on the left-hand face of valve body, and this first change-over valve, second change-over valve all adopt plug-in mounting structure; The first above-mentioned change-over valve, second change-over valve all are shaped on screw thread outward, by being fastenedly connected of this screw thread realization and valve body.
The first above-mentioned change-over valve is a two position three-way valve, and when controlling this first change-over valve by the spring reset end, the delivery port on this first change-over valve is communicated with return opening, and oil inlet is in rest position; When controlling this first change-over valve by the hydraulic-driven end, the delivery port on this first change-over valve is communicated with oil inlet, and return opening is in rest position.
The second above-mentioned change-over valve is a two position three-way valve, and when controlling this second change-over valve by the spring reset end, the delivery port on this second change-over valve is communicated with return opening, and oil inlet is in rest position; When controlling this second change-over valve by the hydraulic-driven end, the delivery port on this second change-over valve is communicated with oil inlet, and return opening is in rest position.
Compared with prior art, the present invention includes valve body, be fitted with first change-over valve, second change-over valve, the first damping joint and the second damping joint on this valve body, this valve body also is shaped on oil inlet, return opening and first output oil port, second output oil port; The first output oil port inner chamber is connected with the delivery port of first change-over valve, and the first output oil port end face and the first damping joint sealing spin, and is embedded with damping in the middle of this first damping joint, and the delivery rate of first change-over valve is controlled in this damping; The second output oil port inner chamber is connected with the delivery port of second change-over valve, and the second output oil port end face and the second damping joint sealing spin, and also is embedded with damping in the middle of this second damping joint, and the delivery rate of second change-over valve is controlled in this damping; Also be shaped on oil inlet and return opening on first change-over valve, correspondingly, also be shaped on oil inlet and return opening on second change-over valve, and the oil inlet of the oil inlet of first change-over valve, second change-over valve is connected with oil inlet respectively; And the return opening of the return opening of first change-over valve, second change-over valve is connected with return opening respectively.The invention has the advantages that: at output oil port the damping joint is housed, can changes damping in the damping joint according to characteristic, and then improve the matching of total, it is simple in structure, and simple operation, dismounting are comparatively convenient; Adopt the inserting screw thread mode that spins between valve body and the valve member, its compact overall structure, volume is little; In the independently control port of valve body exterior arrangement, its control oil channel interference is little, system stability, good reliability.
Description of drawings
Fig. 1 is the hydraulic principle scheme drawing of the embodiment of the invention;
Fig. 2 is the front scheme of installation of the embodiment of the invention;
Fig. 3 is that scheme drawing is looked on the left side of Fig. 2;
Fig. 4 is the cross-sectional schematic of A-A among Fig. 3.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, figure grade is described as follows: valve body 1, damping 2, the first control port a, the second control port b, the first output oil port A, the second output oil port B, the first damping joint DLF1, the second damping joint DLF2, oil inlet P, oil return inlet T, the first change-over valve YHF1, the second change-over valve YHF2.
The embodiment of the invention, a kind of duplex hoist brake pilot-actuated valve of getting on the bus of car hosit, comprise valve body 1, be fitted with the first change-over valve YHF1, the second change-over valve YHF2, the first damping joint DLF1 and the second damping joint DLF2 on this valve body 1, this valve body 1 also is shaped on oil inlet P, oil return inlet T and the first output oil port A, the second output oil port B; The first output oil port A inner chamber is connected with the delivery port of the first change-over valve YHF1, and the first output oil port A end face and first damping joint DLF1 sealing spin, and be embedded with damping 2 in the middle of this first damping joint DLF1, the delivery rate of these damping 2 controls first change-over valve YHF1; The second output oil port B inner chamber is connected with the delivery port of the second change-over valve YHF2, and the second output oil port B end face and second damping joint DLF2 sealing spin, and also be embedded with damping 2 in the middle of this second damping joint DLF2, and the delivery rate of these damping 2 controls second change-over valve YHF2; Also be shaped on oil inlet and return opening on the first change-over valve YHF1, correspondingly, also be shaped on oil inlet and return opening on the second change-over valve YHF2, and the oil inlet of the oil inlet of the first change-over valve YHF1, the second change-over valve YHF2 is connected with oil inlet P respectively; And the return opening of the return opening of the first change-over valve YHF1, the second change-over valve YHF2 is connected with oil return inlet T respectively.
Present embodiment is achieved in that the first change-over valve YHF1 two ends are equipped with spring reset end and hydraulic-driven end, and correspondingly, the second change-over valve YHF2 two ends also are equipped with spring reset end and hydraulic-driven end; Be shaped on the first control port a and the second control port b on the valve body 1, and this first control port a is connected with the first change-over valve YHF1 hydraulic-driven end, correspondingly, this second control port b is connected with the second change-over valve YHF2 hydraulic-driven end.The first control port a, the second control port b all are positioned on the right lateral surface of valve body 1, and become same straight-though arrangement, and also all are shaped on the connection screw thread on its port.
The first damping joint DLF1, the second damping joint DLF2 are positioned at the front of valve body 1, and arrange in line; Oil inlet P, oil return inlet T are positioned at the upper surface of valve body 1, and the port of this oil inlet P, oil return inlet T all is shaped on to connect and uses screw thread.At the first output oil port A, the second output oil port B damping joint is housed, can changes damping in the damping joint according to characteristic, and then improve the matching of total, it is simple in structure, and simple operation, dismounting are comparatively convenient.
The first change-over valve YHF1, the second change-over valve YHF2 are positioned on the left-hand face of valve body 1, and this first change-over valve YHF1, the second change-over valve YHF2 all adopt plug-in mounting structure; The first change-over valve YHF1, the second change-over valve YHF2 all are shaped on screw thread outward, by being fastenedly connected of this screw thread realization and valve body.Adopt the inserting screw thread mode that spins between valve body and the valve member, its compact overall structure, volume is little.
The first change-over valve YHF1 is a two position three-way valve, and when controlling this first change-over valve YHF1 by the spring reset end, the delivery port on this first change-over valve YHF1 is communicated with return opening, and oil inlet is in rest position; When controlling this first change-over valve YHF1 by the hydraulic-driven end, the delivery port on this first change-over valve YHF1 is communicated with oil inlet, and return opening is in rest position.The second change-over valve YHF2 is a two position three-way valve, and when controlling this second change-over valve YHF2 by the spring reset end, the delivery port on this second change-over valve YHF2 is communicated with return opening, and oil inlet is in rest position; When controlling this second change-over valve YHF2 by the hydraulic-driven end, the delivery port on this second change-over valve YHF2 is communicated with oil inlet, and return opening is in rest position.In the independently control port of valve body 1 exterior arrangement, its control oil channel interference is little, system stability, good reliability.
The invention has the advantages that: at output oil port the damping joint is housed, can changes damping in the damping joint according to characteristic, and then improve the matching of total, it is simple in structure, and simple operation, dismounting are comparatively convenient; Adopt the inserting screw thread mode that spins between valve body and the valve member, its compact overall structure, volume is little; In the independently control port of valve body exterior arrangement, its control oil channel interference is little, system stability, good reliability.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (7)
1. the duplex hoist brake pilot-actuated valve of getting on the bus of a car hosit, comprise valve body (1), be fitted with first change-over valve (YHF1), second change-over valve (YHF2), the first damping joint (DLF1) and the second damping joint (DLF2) on this valve body (1), this valve body (1) also is shaped on oil inlet (P), return opening (T) and first output oil port (A), second output oil port (B); It is characterized in that: described first output oil port (A) inner chamber is connected with the delivery port of first change-over valve (YHF1), and first output oil port (A) end face and the sealing of the described first damping joint (DLF1) spin, and be embedded with damping (2) in the middle of this first damping joint (DLF1), the delivery rate of this damping (2) control first change-over valve (YHF1); Described second output oil port (B) inner chamber is connected with the delivery port of second change-over valve (YHF2), and second output oil port (B) end face and the sealing of the described second damping joint (DLF2) spin, and also be embedded with damping (2) in the middle of this second damping joint (DLF2), and the delivery rate of this damping (2) control second change-over valve (YHF2); Also be shaped on oil inlet and return opening on described first change-over valve (YHF1), correspondingly, also be shaped on oil inlet and return opening on described second change-over valve (YHF2), and the oil inlet of the oil inlet of first change-over valve (YHF1), second change-over valve (YHF2) is connected with the oil inlet (P) of described valve body (1) respectively; And the return opening of the return opening of first change-over valve (YHF1), second change-over valve (YHF2) is connected with the return opening (T) of described valve body (1) respectively.
2. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 1, it is characterized in that: described first change-over valve (YHF1) two ends are equipped with spring reset end and hydraulic-driven end, correspondingly, described second change-over valve (YHF2) two ends also are equipped with spring reset end and hydraulic-driven end; Be shaped on first control port (a) and second control port (b) on the described valve body (1), and this first control port (a) is connected with described first change-over valve (YHF1) hydraulic-driven end, and this second control port (b) is connected with described second change-over valve (YHF2) hydraulic-driven end.
3. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 2, it is characterized in that: described first control port (a), second control port (b) all are positioned on the right lateral surface of valve body (1), and all are shaped on to be connected on the port of first control port (a) and second control port (b) and use screw thread.
4. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 3, it is characterized in that: the described first damping joint (DLF1), the second damping joint (DLF2) are positioned at the front of valve body (1); The oil inlet (P) of described valve body (1), the return opening (T) of valve body (1) are positioned at the upper surface of valve body (1), and the port of the return opening (T) of the oil inlet (P) of valve body (1), valve body (1) all is shaped on to connect and uses screw thread.
5. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 4, it is characterized in that: described first change-over valve (YHF1), second change-over valve (YHF2) are positioned on the left-hand face of valve body (1), and this first change-over valve (YHF1), second change-over valve (YHF2) all adopt plug-in mounting structure; Described first change-over valve (YHF1), the outer screw thread that all is shaped on of second change-over valve (YHF2) are by being fastenedly connected of this screw thread realization and valve body.
6. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 5, it is characterized in that: described first change-over valve (YHF1) is a two position three-way valve, when controlling this first change-over valve (YHF1) by the spring reset end, delivery port on this first change-over valve (YHF1) is communicated with return opening, and oil inlet is in rest position; When controlling this first change-over valve (YHF1) by the hydraulic-driven end, the delivery port on this first change-over valve (YHF1) is communicated with oil inlet, and return opening is in rest position.
7. the duplex hoist brake pilot-actuated valve of getting on the bus of a kind of car hosit according to claim 5, it is characterized in that: described second change-over valve (YHF2) is a two position three-way valve, when controlling this second change-over valve (YHF2) by the spring reset end, delivery port on this second change-over valve (YHF2) is communicated with return opening, and oil inlet is in rest position; When controlling this second change-over valve (YHF2) by the hydraulic-driven end, the delivery port on this second change-over valve (YHF2) is communicated with oil inlet, and return opening is in rest position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101541460A CN101704486B (en) | 2009-11-05 | 2009-11-05 | Pilot control valve for aboard duplex hoist brake of autocrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101541460A CN101704486B (en) | 2009-11-05 | 2009-11-05 | Pilot control valve for aboard duplex hoist brake of autocrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101704486A CN101704486A (en) | 2010-05-12 |
| CN101704486B true CN101704486B (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101541460A Active CN101704486B (en) | 2009-11-05 | 2009-11-05 | Pilot control valve for aboard duplex hoist brake of autocrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101704486B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102718B (en) * | 2010-12-31 | 2013-06-05 | 贵州枫阳液压有限责任公司 | Power unit for braking of tower crane |
| CN112240417A (en) * | 2019-12-16 | 2021-01-19 | 新昌县善力机械科技有限公司 | Hydraulic control method for high-pressure oil pipe |
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2009
- 2009-11-05 CN CN2009101541460A patent/CN101704486B/en active Active
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| CN101704486A (en) | 2010-05-12 |
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