CN105438989A - Upper crane part and lower crane part oil supply system of crane - Google Patents
Upper crane part and lower crane part oil supply system of crane Download PDFInfo
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- CN105438989A CN105438989A CN201410796314.7A CN201410796314A CN105438989A CN 105438989 A CN105438989 A CN 105438989A CN 201410796314 A CN201410796314 A CN 201410796314A CN 105438989 A CN105438989 A CN 105438989A
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Abstract
The invention relates to an upper crane part and lower crane part oil supply system of a crane. The upper crane part and lower crane part oil supply system comprises an oil supply module, an adapter-connection module, an execution module and an oil integrated module. The oil supply module is located on a lower crane part and can provide high-pressure oil for the oil supply system; the adapter-connection module is located between an upper crane part and the lower crane part and connected with the oil supply module and the execution module and can achieve normal oil conveying between the upper crane part and the lower crane part during rotation of the upper crane part; the execution module is located in the upper crane part or in the upper crane part and the lower crane part and can control the crane to execute actions; the oil integrated module is disposed on an oil way between the adapter-connection module and the execution module and can achieve single input and multiple outputs of oil supply, multiple inputs and single output of oil return and/or multiple inputs and single output of oil drainage of the oil supply module. By means of the upper crane part and lower crane part oil supply system of the crane, the number of channels of the adapter-connection module is effectively decreased, the number of connection pipelines is also decreased, and the overall arrangement is simple. By optimizing the structure of the upper crane part and lower crane part oil supply hydraulic system, the compactedness of the whole crane is improved, and the cost is reduced.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of hoisting crane and to get on or off the bus fuel-feed system.
Background technology
Rough terrain wheeled crane is the wheel-mounted crane of a kind of Function Extension inheriting the advantage such as car hosit maneuverability and crawler crane lift heavy traveling.
Rough terrain wheeled crane of the prior art gets on the bus fuel-feed system as shown in Figure 1, mainly comprise: braking in a turn control cock group 13a controls steering hardware 14a and stop mechanism 15a, the elevator luffing control cock group 8a that stretches controls elevator and to stretch luffing mechanism 7a, rotary control valve group 10a controls swing type mechanism 9a and pilot-actuated valve group 12a and controls pilot mechanism 11a, the control oil pump of its correspondence is respectively braking in a turn oil pump 5a, elevator stretches luffing oil pump 2a, dump pump 3a and guide's oil pump 4a, these control oil pumps are arranged at gets off, each system realizes fuel feeding by the control oil pump of correspondence respectively through the respective oil duct in centre revolving joint 6a.Wherein, centre revolving joint 6a, for connecting the hydraulic tubing between getting on or off the bus, electric wiring, ensures in upper-part rotation process, electricity, liquid normal transmission between can realizing getting on or off the bus.
Although this hydraulic oil supply system can realize working respectively with simultaneously of each system effectively, control comparatively flexible, number of channels and the pipeline of centre revolving joint 6a are more, and it is intricate to connect, and cause that system is not compact and cost is higher thus.Along with the exploitation of rough terrain wheeled crane, require more and more higher to the compactedness of its hydraulic efficiency pressure system, existing fuel-feed system can not satisfy the demands.
Summary of the invention
The object of the invention is to propose a kind of hoisting crane to get on or off the bus fuel-feed system, effectively can reduce the quantity of interconnecting module passage, improve the compactedness of car load hydraulic efficiency pressure system.
For achieving the above object, the invention provides a kind of hoisting crane and to get on or off the bus fuel-feed system, comprising: fuel oil supply unit, interconnecting module, execution module and fluid integration module;
Described fuel oil supply unit is positioned at gets off, and can provide high-voltage oil liquid for described fuel-feed system;
Described interconnecting module is between getting on or off the bus, and the import and export of each passage are connected with described fuel oil supply unit and described execution module respectively, in upper-part rotation process, can realize the fluid normal transmission between getting on or off the bus;
Described execution module is arranged in gets on the bus or gets on or off the bus, and can control hoisting crane and perform an action;
Described fluid integration module is arranged on the oil circuit between described interconnecting module and described execution module, and the fuel feeding one that can realize described fuel oil supply unit inputs multi output, oil return multi input one exports and/or draining multi input one output.
Further, described fluid integration module comprises: high pressure integration module, oil return integration module 18 and/or draining integration module 16;
Described high pressure integration module is connected between the oil supply gallery of described interconnecting module and described execution module, and control fluid can be converged is, behind a road, reallocate to the oil circuit at each mechanism place of described execution module;
Described oil return integration module 18 is connected between the drainback passage of described execution module and described interconnecting module, each oil return circuit of described execution module can be converted to a road and return fuel tank 1;
Described draining integration module 16 is connected between the drain path of described execution module and described interconnecting module, each draining oil circuit of described execution module can be converted to a road and return fuel tank 1.
Further, described high pressure integration module comprises: be arranged on the first high pressure integration module 17 of getting on the bus and be arranged on the second high pressure integration module 19 of getting off, it is, behind a road, reallocate to the oil circuit at each mechanism place of the described execution module of getting on the bus that control fluid can converge by described first high pressure integration module 17; It is, behind a road, reallocate to the oil circuit at each mechanism place of the described execution module of getting off that control fluid can converge by described second high pressure integration module 19.
Further, the described execution module of getting on the bus comprises: braking in a turn control cock group 13, elevator stretch luffing control cock group 8 control elevator stretch luffing mechanism 7, rotary control valve group 10 control swing type mechanism 9 and pilot-actuated valve group 12 control pilot mechanism 11.
Further, the described execution module of getting off comprises: the steering hardware 14 controlled by described braking in a turn control cock group 13 and stop mechanism 15.
Further, described fuel oil supply unit comprises: elevator stretches luffing oil pump 2, dump pump 3, guide's oil pump 4 and braking in a turn oil pump 5, is separately positioned on described elevator and stretches on the oil circuit at luffing control cock group 8, rotary control valve group 10, pilot-actuated valve group 12 and braking in a turn control cock group 13 place.
Further, check valve 20 is respectively arranged with in the stretch outlet of luffing oil pump 2, described dump pump 3, described guide's oil pump 4 and described braking in a turn oil pump 5 of described elevator.
Further, swivel coupling 6 centered by described interconnecting module.
Further, described first high pressure integration module 17 and described second high pressure integration module 19 are flow divider valve, or described oil return integration module 18 and described draining integration module 16 are combiner valve.
Based on technique scheme, the hoisting crane of the embodiment of the present invention is got on or off the bus fuel-feed system, fluid integration module is increased in traditional hydraulic efficiency pressure system, achieve the function that high pressure fuel source fuel feeding one inputs multi output, oil return multi input one exports and/or draining multi input one exports, effectively reduce the quantity of interconnecting module passage, connecting line is reduced, layout is simple, the optimization that this kind carries out fuel feeding hydraulic system structure of getting on or off the bus, improve the compactedness of car load hydraulic efficiency pressure system, also save cost simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is that in prior art, hoisting crane is got on or off the bus the hydraulic system principle figure of fuel-feed system;
Fig. 2 is that hoisting crane of the present invention is got on or off the bus the hydraulic system principle figure of a fuel-feed system embodiment.
Description of reference numerals
2a-elevator stretches luffing oil pump; 3a-dump pump; 4a-guide's oil pump; 5a-braking in a turn oil pump; 6a-centre revolving joint; 7a-elevator stretches luffing mechanism; 8a-elevator stretches luffing control cock group; 9a-swing type mechanism; 10a-rotary control valve group; 11a-pilot mechanism; 12a-pilot-actuated valve group; 13a-braking in a turn control cock group; 14a-steering hardware; 15a-stop mechanism;
1-fuel tank; 2-elevator stretches luffing oil pump; 3-dump pump; 4-guide's oil pump; 5-braking in a turn oil pump; 6-centre revolving joint; 7-elevator stretches luffing mechanism; 8-elevator stretches luffing control cock group; 9-swing type mechanism; 10-rotary control valve group; 11-pilot mechanism; 12-pilot-actuated valve group; 13-braking in a turn control cock group; 14-steering hardware; 15-stop mechanism; 16-draining integration module; 17-first high pressure integration module; 18-oil return integration module; 19-second high pressure integration module; 20-check valve.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Terms such as " first ", " second " that occur in the present invention is only for convenience of description, to distinguish the different constituent elementss with same names, does not represent successively or primary-slave relation.
In order to make the structure of car load hydraulic efficiency pressure system more compact, the invention provides a kind of hoisting crane and to get on or off the bus fuel-feed system, comprising: fuel oil supply unit, interconnecting module, execution module and fluid integration module; Fuel oil supply unit is positioned at gets off, and can provide high-voltage oil liquid for fuel-feed system; Interconnecting module is between getting on or off the bus, and the import and export of each passage are connected with fuel oil supply unit and execution module respectively, in upper-part rotation process, can realize the fluid normal transmission between getting on or off the bus; Execution module is arranged in gets on the bus or gets on or off the bus, and can control hoisting crane and perform an action; Fluid integration module is arranged on the oil circuit between interconnecting module and execution module, and the fuel feeding one that can realize fuel oil supply unit inputs multi output, oil return multi input one exports and/or draining multi input one output.
The fuel-feed system of prior art adopts each mechanism to realize fuel feeding, oil return and draining respectively by the control oil pump of correspondence through centre revolving joint, and the number of channels of centre revolving joint is more, pipeline is many, it is intricate to connect.And the hoisting crane of the embodiment of the present invention is got on or off the bus fuel-feed system, in traditional hydraulic efficiency pressure system, increase fluid integration module, achieve the function that high pressure fuel source fuel feeding one inputs multi output, oil return multi input one exports and/or draining multi input one exports.Engineering staff can select the quantity of fluid integration module to realize channel part or all integrated object according to the situation of hydraulic efficiency pressure system, certainly in all fuel feeding, oil return and draining path, fluid integration module is all set with interconnecting module related position, the optimized design of system can be obtained.These schemes are compared to prior art in a word, effectively can reduce the quantity of interconnecting module passage, connecting line is reduced, layout is simple, the optimization that this kind carries out fuel feeding hydraulic system structure of getting on or off the bus, improves the compactedness of car load, also saves cost simultaneously.
Hoisting crane is as shown in Figure 2 got on or off the bus the hydraulic system principle figure of fuel-feed system, and the fluid integration module in above-described embodiment can comprise: high pressure integration module, oil return integration module 18 and/or draining integration module 16; High pressure integration module is connected between the oil supply gallery of interconnecting module and execution module, and control fluid can be converged is, behind a road, reallocate to the oil circuit at each mechanism place of execution module; Oil return integration module 18 is connected between execution module and the drainback passage of interconnecting module, each oil return circuit of execution module can be converted to a road and return fuel tank 1; Draining integration module 16 is connected between execution module and the drain path of interconnecting module, each draining oil circuit of execution module can be converted to a road and return fuel tank 1.
Further, in a upper embodiment, high pressure integration module comprises: be arranged on the first high pressure integration module 17 of getting on the bus and be arranged on the second high pressure integration module 19 of getting off, it is, behind a road, reallocate to the oil circuit at each mechanism place of the execution module of getting on the bus that control fluid can converge by the first high pressure integration module 17; It is, behind a road, reallocate to the oil circuit at each mechanism place of the execution module of getting off that control fluid can converge by the second high pressure integration module 19.
In engineering reality, high pressure integration module (such as: the first high pressure integration module 17 and the second high pressure integration module 19) can choose flow divider valve, oil return integration module 18 and draining integration module 16 can select combiner valve, can choose suitable model or designed, designed from the market during use.The effect of flow divider valve makes to supply identical flow by same oil sources to plural power element in hydraulic efficiency pressure system, or by a certain percentage to plural power element supply flow, keep synchronously or surely than relation with the speed realizing two or more power element.If be the demand that flows exceed of certain road power element supply, by the by pass valve being arranged on this road, a part of fluid can be returned fuel tank 1.The effect of combiner valve is then from flow or pro rata recirculating oil quantities such as plural power element collections, is converted to a road binders liquid and exports.
In order to more specifically effect of optimization of the present invention is described quantitatively, the hydraulic oil supply system by applying in hoisting crane embodiment specifically set forth below, as shown in Figure 2, the arrow shown in figure schematically show the flow direction of hydraulic oil liquid.This hydraulic efficiency pressure system makes hoisting crane realize elevator to stretch the actions such as luffing controls, revolution control, pilot control, course changing control and control for brake.Each execution module in this hydraulic efficiency pressure system is that the execution module of getting on the bus comprises in the layout of hoisting crane: braking in a turn control cock group 13, elevator stretch luffing control cock group 8 control elevator stretch luffing mechanism 7, rotary control valve group 10 control swing type mechanism 9 and pilot-actuated valve group 12 control pilot mechanism 11.The execution module of getting off comprises: the steering hardware 14 controlled by braking in a turn control cock group 13 and stop mechanism 15.
Further, fuel oil supply unit comprises: elevator stretches luffing oil pump 2, dump pump 3, guide's oil pump 4 and braking in a turn oil pump 5, being separately positioned on elevator stretches on the oil circuit at luffing control cock group 8, rotary control valve group 10, pilot-actuated valve group 12 and braking in a turn control cock group 13 place, for the action of each mechanism provides fluid.Certainly, if single oil pump can provide flow and the pressure of needs, fuel oil supply unit also can only comprise single oil pump.
Preferably, in order to prevent fluid from refluxing, damage being impacted to oil pump or produces fault, being respectively arranged with check valve 20 in the stretch outlet of luffing oil pump 2, dump pump 3, guide's oil pump 4 and braking in a turn oil pump 5 of elevator.
Preferably, swivel coupling 6 centered by interconnecting module, can certainly be that other can ensure in upper-part rotation process, can realize the structure of fluid normal transmission between getting on or off the bus.
This embodiment all arranges fluid integration module with interconnecting module and the related position of centre revolving joint 6 in all fuel feeding, oil return and draining path, all oil circuits of swivel coupling 6 centered by interconnecting module that needs can all be merged into a road by it, decrease the quantity of interconnecting module passage, this mode belongs to the optimum design optimized in centre revolving joint number of channels.
Under this system layout pattern, fluid integration module comprises: the first high pressure integration module 17, second high pressure integration module 19, oil return integration module 18 and draining integration module 16.Wherein, between the oil supply gallery that first high pressure integration module 17 is connected to centre revolving joint 6 and execution module, it is a road that the fluid of luffing oil pump 2, dump pump 3, guide's oil pump 4 and braking in a turn oil pump 5 oil outlet of elevator can being stretched converges after check valve 20, the oil circuit at luffing control cock group 8, rotary control valve group 10, pilot-actuated valve group 12 and braking in a turn control cock group 13 place of stretching to elevator of reallocating; Oil return integration module 18 is connected between the drainback passage of execution module and centre revolving joint 6, each oil return circuit in execution module can be converted to a road and return fuel tank 1; Draining integration module 16 is connected between the drain path of execution module and centre revolving joint 6, each draining oil circuit of execution module can be converted to a road and return fuel tank 1.
Embodiments of the invention by increasing by the first high pressure integration module 17 and the second high pressure integration module 19 in the fuel-feed system of prior art, the function that high pressure fuel source one inputs multi output can be realized, and increase draining integration module 16 and oil return integration module 18, the function of oil return and the output of leakage multi input one can be realized, the number of channels of such center steering body is reduced to 4, effectively reduce the quantity of centre revolving joint passage, optimize hydraulic efficiency pressure system, improve the compactedness of car load hydraulic efficiency pressure system.And fuel-feed system of the prior art is in order to realize getting on or off the bus each several part hydraulic efficiency pressure system fuel feeding, centre revolving joint needs to possess 13 oil ducts, and center visible swivel coupling number of channels is more, make pipeline many and connect intricate, cause car load not compact, system cost is also higher.Known by contrasting, fuel-feed system of the present invention is simple and compact for structure, and pipeline quantity reduces, and also avoids the phenomenon of pipeline alternative arrangement as far as possible, reduces the probability that fault occurs, also saves cost.
Certainly, in practice, engineering staff also can only choose in an embodiment in fluid integration module one or several, such as after the restriction considering the deployment scenarios of modules in hoisting crane is got on or off the bus and real space, in the first high pressure integration module 17, second high pressure integration module 19, oil return integration module 18 and draining integration module 16, part is chosen, when the function that also can perform in system is more, increases as required and fluid integration module is set.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And do not depart from the spirit of technical solution of the present invention, all should be encompassed in request of the present invention protection technical scheme scope in the middle of.
Claims (9)
1. hoisting crane is got on or off the bus a fuel-feed system, it is characterized in that, comprising: fuel oil supply unit, interconnecting module, execution module and fluid integration module;
Described fuel oil supply unit is positioned at gets off, and can provide high-voltage oil liquid for described fuel-feed system;
Described interconnecting module is between getting on or off the bus, and the import and export of each passage are connected with described fuel oil supply unit and described execution module respectively, in upper-part rotation process, can realize the fluid normal transmission between getting on or off the bus;
Described execution module is arranged in gets on the bus or gets on or off the bus, and can control hoisting crane and perform an action;
Described fluid integration module is arranged on the oil circuit between described interconnecting module and described execution module, and the fuel feeding one that can realize described fuel oil supply unit inputs multi output, oil return multi input one exports and/or draining multi input one output.
2. hoisting crane according to claim 1 is got on or off the bus fuel-feed system, and it is characterized in that, described fluid integration module comprises: high pressure integration module, oil return integration module (18) and/or draining integration module (16);
Described high pressure integration module is connected between the oil supply gallery of described interconnecting module and described execution module, and control fluid can be converged is, behind a road, reallocate to the oil circuit at each mechanism place of described execution module;
Described oil return integration module (18) is connected between the drainback passage of described execution module and described interconnecting module, each oil return circuit of described execution module can be converted to a road and return fuel tank (1);
Described draining integration module (16) is connected between the drain path of described execution module and described interconnecting module, each draining oil circuit of described execution module can be converted to a road and return fuel tank (1).
3. hoisting crane according to claim 2 is got on or off the bus fuel-feed system, it is characterized in that, described high pressure integration module comprises: be arranged on the first high pressure integration module (17) of getting on the bus and be arranged on the second high pressure integration module (19) of getting off, it is, behind a road, reallocate to the oil circuit at each mechanism place of the described execution module of getting on the bus that control fluid can converge by described first high pressure integration module (17); It is, behind a road, reallocate to the oil circuit at each mechanism place of the described execution module of getting off that control fluid can converge by described second high pressure integration module (19).
4. hoisting crane according to claim 3 is got on or off the bus fuel-feed system, it is characterized in that, the described execution module of getting on the bus comprises: stretch elevator that luffing control cock group (8) controls of braking in a turn control cock group (13), elevator stretches swing type mechanism (9) that luffing mechanism (7), rotary control valve group (10) control and the pilot mechanism (11) that pilot-actuated valve group (12) controls.
5. hoisting crane according to claim 4 is got on or off the bus fuel-feed system, it is characterized in that, the described execution module of getting off comprises: the steering hardware (14) controlled by described braking in a turn control cock group (13) and stop mechanism (15).
6. to get on or off the bus fuel-feed system according to the arbitrary described hoisting crane of Claims 1 to 5, it is characterized in that, described fuel oil supply unit comprises: elevator stretches luffing oil pump (2), dump pump (3), guide's oil pump (4) and braking in a turn oil pump (5), is separately positioned on described elevator and stretches on the oil circuit at luffing control cock group (8), rotary control valve group (10), pilot-actuated valve group (12) and braking in a turn control cock group (13) place.
7. hoisting crane according to claim 6 is got on or off the bus fuel-feed system, it is characterized in that, be respectively arranged with check valve (20) in the stretch outlet of luffing oil pump (2), described dump pump (3), described guide's oil pump (4) and described braking in a turn oil pump (5) of described elevator.
8. to get on or off the bus fuel-feed system according to the arbitrary described hoisting crane of Claims 1 to 5, it is characterized in that, swivel coupling (6) centered by described interconnecting module.
9. hoisting crane according to claim 3 is got on or off the bus fuel-feed system, it is characterized in that, described first high pressure integration module (17) and described second high pressure integration module (19) are flow divider valve, or described oil return integration module (18) and described draining integration module (16) are combiner valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410796314.7A CN105438989B (en) | 2014-12-19 | 2014-12-19 | Crane is got on or off the bus oil supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796314.7A CN105438989B (en) | 2014-12-19 | 2014-12-19 | Crane is got on or off the bus oil supply system |
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| CN105438989A true CN105438989A (en) | 2016-03-30 |
| CN105438989B CN105438989B (en) | 2018-02-16 |
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| CN201410796314.7A Active CN105438989B (en) | 2014-12-19 | 2014-12-19 | Crane is got on or off the bus oil supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109340200A (en) * | 2018-11-29 | 2019-02-15 | 中联重科股份有限公司 | Hydraulic power controls oil circuit, hydraulic power control method and engineering machinery |
| CN114852867A (en) * | 2022-04-26 | 2022-08-05 | 中联重科股份有限公司 | Control method and control device for crane, controller and crane |
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| CN105438989B (en) | 2018-02-16 |
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