CN101769275B - Upper structure electro-hydraulic rotary control valve of mechanical operation crane - Google Patents
Upper structure electro-hydraulic rotary control valve of mechanical operation crane Download PDFInfo
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- CN101769275B CN101769275B CN201010110925.3A CN201010110925A CN101769275B CN 101769275 B CN101769275 B CN 101769275B CN 201010110925 A CN201010110925 A CN 201010110925A CN 101769275 B CN101769275 B CN 101769275B
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Abstract
The invention discloses an upper structure electro-hydraulic rotary control valve of a mechanical operation crane, which comprises a valve body, wherein the valve body is provided with a hydraulic reversing valve, a shuttle valve, an electromagnetic reversing valve, a one-way valve and an adjustable flow valve in a matching way, an oil inlet opening, an oil return opening and an oil output opening are arranged on the valve body, the oil inlet opening is communicated with pressure openings of the hydraulic reversing valve and the electromagnetic reversing valve, the oil return opening is communicated with oil return openings of the hydraulic reversing valve and the electromagnetic reversing valve, oil outlet openings of the hydraulic reversing valve and the electromagnetic reversing valve are respectively communicated with two oil inlet openings of the shuttle valve, an oil outlet opening of the shuttle valve is communicated with the oil output opening through the one-way valve and the adjustable flow valve which are in parallel connection, and all of the hydraulic reversing valve, the shuttle valve, an adjustable damping and the one-way valve adopt insertion type structures, are respectively inserted and arranged in the valve body, and are highly integrated. The invention has the advantages of simple structure, low manufacture cost, small size of the valve body, high atomization degree, shortened flow passage and convenient maintenance.
Description
Technical field
The present invention relates to the technical field of vehicle liquid pressure valve, particularly a kind of electric-liquid combination operation rotation control valve for upper machine of mechanically actuated hoist.
Background technique
Be applicable to the hydrovalve of truck crane upper rotary control, divide by maneuverability pattern, have manual control mode, electrichydraulic control mode etc., can carry out actual selection according to different ride qualities; To manual maneuverability pattern, its manipulation strength is higher, and automaticity is poor, so comparatively advanced truck crane does not re-use at present; For the latter's electrichydraulic control mode, because it has realized the combination of electricity with liquid, make whole control system can reach automation mechanized operation, and the control sensitivity of system is also significantly improved.
Or adopt treadle control mode and solenoid directional control valve to come together to realize, it is huge that it manufactures control system, installation and maintenance difficulty, automaticity is low; But domestic minority hydraulic hoist and external hydraulic mobile crane upper rotary brake control valve also adopt integrated mode that each control unit is combined, but complex structure is bulky, expensive.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, provide a kind of simple in structure, valve volume is little, valve member height is integrated, automaticity is high and be convenient to the electric-liquid combination operation rotation control valve for upper machine of mechanically actuated hoist of maintenance.
The present invention solves the problems of the technologies described above adopted technological scheme: the electric-liquid combination operation rotation control valve for upper machine of mechanically actuated hoist, include valve body, this valve body is fitted with hydraulicchange-over valve, shuttle valve, solenoid directional control valve, one-way valve and adjustable restrictive valve, on valve body, be provided with filler opening, return opening and output oil port, filler opening is communicated with the pressure port of hydraulicchange-over valve, solenoid directional control valve, and return opening is communicated with hydraulicchange-over valve return opening, pilot operated directional control valve spring chamber, solenoid directional control valve return opening; And the oil outlet of hydraulicchange-over valve, solenoid directional control valve is communicated with two filler openings of shuttle valve respectively, one-way valve, the adjustable restrictive valve of the oil outlet of shuttle valve through being in parallel is communicated with output oil port.
The measure of taking also comprises:
Above-mentioned hydraulicchange-over valve, solenoid directional control valve and valve body all adopt plug-in mounting structure, and this hydraulicchange-over valve, solenoid directional control valve be all shaped with screw thread outward, realize being fastenedly connected of each valve and valve body by this screw thread.
Above-mentioned hydraulicchange-over valve is two position three-way valve, and during by spring chamber control hydraulicchange-over valve, the output terminal on this hydraulicchange-over valve is communicated with return opening, and filler opening is in rest position; During by hydraulic control end control hydraulicchange-over valve, the output terminal on this hydraulicchange-over valve is communicated with filler opening, and return opening is in rest position, and fluid continues outwards to export through shuttle valve, one-way valve and output oil port.
Above-mentioned solenoid directional control valve is also two position three-way valve, and its one end is spring chamber, and the other end is Electromagnetic Drive end; During by this solenoid directional control valve of spring chamber control, the output terminal on this solenoid directional control valve is communicated with return opening, and filler opening is in rest position; During by this solenoid directional control valve of Electromagnetic Drive end control, the output terminal on this solenoid directional control valve is communicated with filler opening, and return opening is in rest position.
On the above-mentioned valve body right side, be shaped with the first control port, and this first control port is communicated with the hydraulic control end of hydraulicchange-over valve; On the hydraulicchange-over valve the other end, be shaped with the second control port.
Above-mentioned filler opening, the bottom surface that return opening is arranged at valve body.
Above-mentioned output oil port, one-way valve and shuttle valve is arranged at the end face of valve body, and one-way valve, shuttle valve coordinate with the equal plug-in mounting of valve body, and above-mentioned shuttle valve is all shaped with screw thread outward, is fastenedly connected by this screw thread and valve body.
The through-flow end of above-mentioned one-way valve is connected with the output terminal of shuttle valve, and cut-off end is connected with above-mentioned output oil port.
The below that above-mentioned valve body is positioned at output oil port is shaped with tapped hole, and adjustable restrictive valve includes at least one damping, and tapped hole and this damping spin chimeric.
The quantity composition adjustable restrictive valve of above-mentioned damping; In the middle of each damping, be all shaped with reach through hole, and the diameter value of this damping reach through hole determines the liquid through-current capability of adjustable restrictive valve.
Compared with prior art, the present invention includes valve body, this valve body is fitted with hydraulicchange-over valve, shuttle valve, solenoid directional control valve, one-way valve and adjustable restrictive valve, on valve body, be provided with filler opening, return opening and output oil port, filler opening is communicated with the pressure port of hydraulicchange-over valve, solenoid directional control valve, return opening is communicated with the return opening of hydraulicchange-over valve, solenoid directional control valve, and the oil outlet of hydraulicchange-over valve, solenoid directional control valve is communicated with two filler openings of shuttle valve respectively, one-way valve, the adjustable restrictive valve of the oil outlet of shuttle valve through being in parallel is communicated with output oil port.The invention has the advantages that: hydraulicchange-over valve, shuttle valve, adjustable damping and one-way valve all adopt plug-in type structure, in difference plug-in mounting and valve body, and highly integrate, simple in structure, low cost of manufacture, valve volume is little, automaticity is high, shortened runner, the maintenance of being more convenient for.
Brief description of the drawings
Fig. 1 is the hydraulic principle schematic diagram of the embodiment of the present invention;
Fig. 2 is the equipped schematic diagram of the embodiment of the present invention;
Fig. 3 is the schematic top plan view of Fig. 2;
Fig. 4 is the cross section cross-sectional schematic of A-A direction in Fig. 2;
Fig. 5 is the cross section cross-sectional schematic of B-B direction in Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figures 1 to 5, figure grade is described as follows: valve body 1, tapped hole 11, damping 2, filler opening K, oil return inlet T, output oil port Y, the first control port P, the second control port PT, hydraulicchange-over valve YHF, solenoid directional control valve DHF, shuttle valve SF, one-way valve DF, adjustable restrictive valve NF.
The embodiment of the present invention, the electric-liquid combination operation rotation control valve for upper machine of mechanically actuated hoist, include valve body 1, this valve body 1 is fitted with hydraulicchange-over valve YHF, shuttle valve SF, solenoid directional control valve DHF, one-way valve DF and adjustable restrictive valve NF, on valve body 1, be provided with filler opening K, oil return inlet T and output oil port Y, filler opening K is communicated with the pressure port of hydraulicchange-over valve YHF, solenoid directional control valve DHF, and oil return inlet T is communicated with hydraulicchange-over valve YHF return opening, pilot operated directional control valve YHF spring chamber, solenoid directional control valve DHF return opening; And the oil outlet of hydraulicchange-over valve YHF, solenoid directional control valve DHF is communicated with two filler openings of shuttle valve SF respectively, one-way valve DF, the adjustable restrictive valve NF of the oil outlet of shuttle valve SF through being in parallel is communicated with output oil port Y.
Output oil port Y, one-way valve DF and shuttle valve SF are arranged at the end face of valve body 1, the below that valve body 1 is positioned at output oil port Y is shaped with tapped hole 11, adjustable restrictive valve NF includes at least one damping 2, the spin quantity of chimeric, equipped damping 2 of tapped hole 11 and this damping 2 forms and controls adjustable restrictive valve NF; In the middle of each damping 2, be all shaped with reach through hole, and the diameter value of these damping 2 reach through holes determines the liquid through-current capability of adjustable restrictive valve NF.Output oil port Y, by the adjustable restrictive valve NF and the one-way valve DF that are in parallel and arrange, adjusts quantity, the reach through hole numerical value of damping 2, and then improves the matching of whole product, and played the rotary braking effect of quick unlatching and slowly closing according to characteristic.
Filler opening K, oil return inlet T are arranged at the bottom surface of valve body 1, and one-way valve DF, shuttle valve SF coordinate with the equal plug-in mounting of valve body 1.Hydraulicchange-over valve YHF, solenoid directional control valve DHF are plugged on valve body 1 left side, and on the right side of valve body 1, are shaped with the first control port P, and this first control port P is communicated with the hydraulic control end of hydraulicchange-over valve YHF; On the hydraulicchange-over valve YHF the other end, be shaped with the second control port PT.
Hydraulicchange-over valve YHF, solenoid directional control valve DHF and valve body 1 all adopt plug-in mounting structure, and this hydraulicchange-over valve YHF, solenoid directional control valve DHF be all shaped with screw thread outward, realize being fastenedly connected of each valve and valve body 1 by this screw thread.Hydraulicchange-over valve YHF is two position three-way valve, and during by spring chamber control hydraulicchange-over valve YHF, the output terminal on this hydraulicchange-over valve YHF is communicated with return opening, and filler opening is in rest position; During by hydraulic control end control hydraulicchange-over valve YHF, the output terminal on this hydraulicchange-over valve YHF is communicated with filler opening, and return opening is in rest position, and fluid continues to export outward through shuttle valve SF, one-way valve DF and output oil port Y-direction.Solenoid directional control valve DHF is also two position three-way valve, and its one end is spring chamber, and the other end is Electromagnetic Drive end; During by this solenoid directional control valve of spring chamber control DHF, the output terminal on this solenoid directional control valve DHF is communicated with return opening, and filler opening is in rest position; During by this solenoid directional control valve of Electromagnetic Drive end control DHF, the output terminal on this solenoid directional control valve DHF is communicated with filler opening, and return opening is in rest position.
Output oil port Y, one-way valve DF and shuttle valve SF are arranged at the end face of valve body 1, and one-way valve DF, shuttle valve SF coordinate with the equal plug-in mounting of valve body 1, and shuttle valve SF is all shaped with screw thread outward, is fastenedly connected by this screw thread and valve body 1; The through-flow end of one-way valve DF is connected with the output terminal of shuttle valve SF, and cut-off end is connected with output oil port Y.
The working principle of the embodiment of the present invention is: constant pressure fluid enters filler opening K, when solenoid directional control valve DHF needs to turn round work in must not electric situation, rotary buffering valve oil-feed runner and oil return runner build-up pressure, namely the first control port P, the second control port PT build-up pressure, utilize the pressure reduction between the first control port P, the second control port PT and spring force to open hydraulicchange-over valve YHF, now constant pressure fluid is selected by shuttle valve SF by hydraulicchange-over valve YHF, to output oil port Y, open rapidly trainstop by one-way valve DF.
When system need to be used while freely turning round, solenoid directional control valve DHF obtains electric, and now constant pressure fluid is selected by one-way valve DF, to output oil port Y, to open rapidly trainstop by shuttle valve SF by solenoid directional control valve DHF.When revolution end-of-job, when not charged the and hydraulicchange-over valve YHF fluid control pressure of solenoid directional control valve DHF disappears, cut off constant pressure fluid, the pressure oil in break is slowly discharged into fuel tank from solenoid directional control valve DHF and hydraulicchange-over valve YHF to oil return inlet T by adjustable restrictive valve NF.Guarantee that break slowly brakes.
Pilot operated directional control valve YHF spring chamber is communicated with oil return inlet T, and forms oil return, and the first control port P, from filler opening K, opens pilot operated directional control valve.Filler opening K is provided by external system, adopts permanent high pressure fuel source form.
The invention has the advantages that: hydraulicchange-over valve, shuttle valve, adjustable damping and one-way valve all adopt plug-in type structure, in difference plug-in mounting and valve body, and highly integrate, simple in structure, low cost of manufacture, valve volume is little, automaticity is high, shortening runner, the maintenance of being more convenient for.
Most preferred embodiment of the present invention is illustrated, and the various variations of being made by those of ordinary skill in the art or remodeling can not depart from the scope of the present invention.
Claims (1)
1. the electric-liquid combination operation rotation control valve for upper machine of mechanically actuated hoist, include valve body (1), this valve body (1) is fitted with hydraulicchange-over valve (YHF), solenoid directional control valve (DHF), one-way valve (DF), adjustable restrictive valve (NF) and a unique shuttle valve (SF), on valve body (1), be provided with filler opening (K), return opening (T) and output oil port (Y), it is characterized in that: described filler opening (K) and hydraulicchange-over valve (YHF), the pressure port of solenoid directional control valve (DHF) is communicated with, described return opening (T) and hydraulicchange-over valve (YHF) return opening,
hydraulicchange-over valve (YHF) spring chamber, solenoid directional control valve (DHF) return opening be communicated with, and
hydraulicchange-over valve (YHF), solenoid directional control valve (DHF) oil outlet be communicated with two filler openings of shuttle valve (SF) respectively, one-way valve (DF), the adjustable restrictive valve (NF) of the oil outlet of shuttle valve (SF) through being in parallel is communicated with output oil port (Y), described hydraulicchange-over valve (YHF), solenoid directional control valve (DHF) all adopt plug-in mounting structure with valve body (1), and outside this hydraulicchange-over valve (YHF), solenoid directional control valve (DHF), be all shaped with screw thread, realize being fastenedly connected of each valve and valve body (1) by this screw thread, described hydraulicchange-over valve (YHF) is two position three-way valve, and during by spring chamber control hydraulicchange-over valve (YHF), the output terminal on this hydraulicchange-over valve (YHF) is communicated with return opening, and filler opening is in rest position, during by hydraulic control end control hydraulicchange-over valve (YHF), output terminal on this hydraulicchange-over valve (YHF) is communicated with filler opening, and return opening is in rest position, fluid continues outwards to export through shuttle valve (SF), one-way valve (DF) and output oil port (Y), described solenoid directional control valve (DHF) is also two position three-way valve, and its one end is spring chamber, and the other end is Electromagnetic Drive end, during by this solenoid directional control valve of spring chamber control (DHF), the output terminal on this solenoid directional control valve (DHF) is communicated with return opening, and filler opening is in rest position, during by this solenoid directional control valve of Electromagnetic Drive end control (DHF), the output terminal on this solenoid directional control valve (DHF) is communicated with filler opening, and return opening is in rest position, constant pressure fluid enters filler opening (K), when solenoid directional control valve (DHF) needs to turn round work in must not electric situation, rotary buffering valve oil-feed runner and oil return runner build-up pressure, the first control port (P), the second control port (PT) build-up pressure, utilize the first control port (P), pressure reduction between the second control port (PT) and spring force is opened hydraulicchange-over valve (YHF), constant pressure fluid is selected by shuttle valve (SF) by hydraulicchange-over valve (YHF), by one-way valve (DF) to output oil port (Y), open rapidly trainstop, on described valve body (1) right side, be shaped with the first control port (P), and this first control port (P) is communicated with the hydraulic control end of hydraulicchange-over valve (YHF), on described hydraulicchange-over valve (YHF) the other end, be shaped with the second control port (PT), described filler opening (K), the bottom surface that return opening (T) is arranged at valve body (1), described output oil port (Y), one-way valve (DF) and shuttle valve (SF) is arranged at the end face of valve body (1), and one-way valve (DF), shuttle valve (SF) coordinate with the equal plug-in mounting of valve body (1), described shuttle valve (SF) is outer is all shaped with screw thread, is fastenedly connected by this screw thread and valve body (1), the through-flow end of described one-way valve (DF) is connected with the output terminal of shuttle valve (SF), and cut-off end is connected with described output oil port (Y), the below that described valve body (1) is positioned at output oil port (Y) is shaped with tapped hole (11), described adjustable restrictive valve (NF) includes at least one damping (2), and described tapped hole (11) spins chimeric with this damping (2), the quantity composition adjustable restrictive valve (NF) of described damping (2), in the middle of each damping (2), be all shaped with reach through hole, and the diameter value of this damping (2) reach through hole determines the liquid through-current capability of adjustable restrictive valve (NF), hydraulicchange-over valve (YHF), shuttle valve (SF), damping (2) and one-way valve (DF) all adopt plug-in type structure, are plugged in respectively in valve body (1), and integrate, when system need to be used while freely turning round, solenoid directional control valve (DHF) obtains electric, now constant pressure fluid by solenoid directional control valve (DHF) by shuttle valve (SF) select by one-way valve (DF) to output oil port (Y), open rapidly trainstop, when revolution end-of-job, when not charged and hydraulicchange-over valve (YHF) fluid control pressure of solenoid directional control valve (DHF) disappears, cut off constant pressure fluid, the pressure oil in break is slowly discharged into fuel tank from solenoid directional control valve (DHF) and hydraulicchange-over valve (YHF) to return opening (T) by adjustable restrictive valve (NF), guarantee that break slowly brakes, filler opening (K) is provided by external system, adopts permanent high pressure fuel source form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010110925.3A CN101769275B (en) | 2010-02-11 | 2010-02-11 | Upper structure electro-hydraulic rotary control valve of mechanical operation crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010110925.3A CN101769275B (en) | 2010-02-11 | 2010-02-11 | Upper structure electro-hydraulic rotary control valve of mechanical operation crane |
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| Publication Number | Publication Date |
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| CN101769275A CN101769275A (en) | 2010-07-07 |
| CN101769275B true CN101769275B (en) | 2014-06-25 |
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| CN201010110925.3A Active CN101769275B (en) | 2010-02-11 | 2010-02-11 | Upper structure electro-hydraulic rotary control valve of mechanical operation crane |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102518615A (en) * | 2012-01-04 | 2012-06-27 | 余礼福 | Universal control valve and universal control valve group combining and connecting method |
| US11092171B2 (en) | 2018-12-13 | 2021-08-17 | Caterpillar Inc. | Valve assembly with mechanical and electro-hydraulic control |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859044Y (en) * | 2005-07-19 | 2007-01-17 | 四川长江液压件有限责任公司 | Combined control valve for uploading automatic crane |
| CN101704480A (en) * | 2009-11-05 | 2010-05-12 | 卢宇 | Mounting electrically and hydraulically operated rotation control valve for hydraulically-controlled crane |
| CN201525714U (en) * | 2009-11-05 | 2010-07-14 | 卢宇 | Electric-liquid combination operation rotation control valve for upper machine of hydraulic control crane |
| CN201661537U (en) * | 2010-02-11 | 2010-12-01 | 卢宇 | Upper electro-hydraulic integrating operation rotary control valve of mechanical crane |
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2010
- 2010-02-11 CN CN201010110925.3A patent/CN101769275B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859044Y (en) * | 2005-07-19 | 2007-01-17 | 四川长江液压件有限责任公司 | Combined control valve for uploading automatic crane |
| CN101704480A (en) * | 2009-11-05 | 2010-05-12 | 卢宇 | Mounting electrically and hydraulically operated rotation control valve for hydraulically-controlled crane |
| CN201525714U (en) * | 2009-11-05 | 2010-07-14 | 卢宇 | Electric-liquid combination operation rotation control valve for upper machine of hydraulic control crane |
| CN201661537U (en) * | 2010-02-11 | 2010-12-01 | 卢宇 | Upper electro-hydraulic integrating operation rotary control valve of mechanical crane |
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| CN101769275A (en) | 2010-07-07 |
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