CN106678098A

CN106678098A - Crane hydraulic control system and crane

Info

Publication number: CN106678098A
Application number: CN201611257503.2A
Authority: CN
Inventors: 单增海; 东权; 刘东宏; 向小强; 张正得; 邓永建; 王帅; 胡小冬; 杜孝杰; 仲维超; 韩建营
Original assignee: Xuzhou Heavy Machinery Co Ltd
Current assignee: Xuzhou Heavy Machinery Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-05-17
Anticipated expiration: 2036-12-30
Also published as: CN106678098B

Abstract

The invention relates to the technical field of cranes, in particular to a crane hydraulic control system and a crane. The crane hydraulic control system comprises a prime mover, an execution control mechanism, a hydraulic brake device, a running energy recycling device and an operation energy recycling device; and the operation energy recycling device and the running energy recycling device are matched with a hydraulic energy conversion device, so that kinetic energy generated in a running brake process of the crane and potential energy generated in a heavy object dropping process are respectively converted into hydraulic energy which is recycled, stored and reused. Therefore, energy generated when the crane gets on a lorry and energy generated when the crane gets off from the lorry can be recycled, and energy waste is reduced effectively.

Description

Crane hydraulic control system and crane

Technical field

The present invention relates to crane technical field, more particularly to a kind of crane hydraulic control system and crane.

Background technology

Existing crane, during travelling brake of getting off and in execution weight-drop operation process of getting on the bus, There is energy dissipation phenomenon, the gravitional force in kinetic energy and falling process of heavy in braking procedure is generally converted to heat energy and dissipates Lose, this can increase oil consumption and the discharge of pernicious gas, the service life of influence brake apparatus, prime mover and hydraulic system.

The content of the invention

A technical problem to be solved by this invention is：To under the kinetic energy and weight in crane running braking procedure Potential energy during falling is reclaimed, and reduces energy waste.

In order to solve the above-mentioned technical problem, the invention provides a kind of crane hydraulic control system, it includes driving Prime mover of dynamic crane running, the executing agency for controlling crane implement the execution controlling organization and prime mover of operation Energy transition device with power connector state, enforcement energy recycle device and operation energy recycle device, wherein：

Energy transition device includes switchably working in the pump motor of pump condition and motor operating conditions, pump motor With can the first working hole for being connected of break-make and can the second working hole for being connected of break-make with controlling organization is performed with fuel tank；Exercise energy Amount retracting device includes the first accumulator that can be connected to break-make with the first working hole, and operation energy recycle device includes and second Working hole can the second accumulator of break-make ground connection；

Operation energy recycle device coordinates with energy transition device, executing agency can be performed into weight-drop operation During transform gravitational energy be stored in the first accumulator for hydraulic energy, realize operation energy recovery function, now, pump horse Up in motor operating conditions, the first working hole is connected with the first accumulator and disconnected by the oil circuit of the first working hole to fuel tank, second Working hole is connected and disconnected with the second accumulator with controlling organization is performed；

Traveling energy recycle device coordinates with energy transition device, can be by the machine in crane running braking procedure Tool can be converted into during hydraulic energy is stored in the second accumulator and realize traveling energy recovery function, and now, pump motor is in pump condition, First working hole is connected with fuel tank, and the second working hole is connected with the second accumulator and disconnected with controlling organization is performed.

Alternatively, energy transition device can also be supplied when executing agency normally performs operation to perform controlling organization To hydraulic oil, now, pump motor is in pump condition, and the first working hole connect with fuel tank, the second working hole and execution controlling organization Connect and disconnected with the second accumulator.

Alternatively, crane hydraulic control system also includes the first break-make for controlling the first working hole and fuel tank break-make Control device and the second on-off control device for controlling the second working hole with perform controlling organization break-make, operation energy regenerating Device also includes the 3rd on-off control device for controlling the first accumulator and the first working hole break-make, traveling energy regenerating dress The 4th on-off control device also included for controlling the second accumulator and the second working hole break-make is put, wherein：

When operation energy recovery function is realized, the first on-off control device is controlled by the oil circuit of the first working hole to fuel tank Disconnect, the second on-off control device controls the second working hole to be connected with controlling organization is performed, and the 3rd on-off control device controls the One working hole is connected with the first accumulator, and the 4th on-off control device controls the second working hole and the second accumulator to disconnect；

When traveling energy recovery function is realized, the first on-off control device controls the first working hole to be connected with fuel tank, the Two on-off control devices control the second working hole to be disconnected with controlling organization is performed, and the 4th on-off control device control second works Mouth is connected with the second accumulator.

Alternatively, the first on-off control device includes hydraulic control one-way valve, and the oil inlet of hydraulic control one-way valve is connected with fuel tank, liquid The oil-out for controlling check valve is connected with the first working hole；And/or, the second on-off control device includes switching valve of getting on or off the bus, up and down Car switching valve includes the first valve port and the second valve port, and the first valve port of switching valve of getting on or off the bus is connected with the second working hole, got on or off the bus Second valve port of switching valve is connected with controlling organization is performed, and switching valve of getting on or off the bus is with the first working condition and the second work shape State, when switching valve of getting on or off the bus is in the first working condition, the first valve port of switching valve of getting on or off the bus and the second valve port disconnect, when upper When switching valve of getting off is in the second working condition, the first valve port of switching valve of getting on or off the bus is connected with the second valve port；And/or, the 3rd On-off control device includes the first accumulation of energy control valve, and the first accumulation of energy control valve includes the first valve port and the second valve port, the first accumulation of energy The first valve port of valve is controlled to be connected with the first working hole, the second valve port of the first accumulation of energy control valve is connected with the first accumulator, and First accumulation of energy control valve has the first working condition and the second working condition, when the first accumulation of energy control valve is in the first working condition When, first valve port and the second valve port of the first accumulation of energy control valve disconnect, or, the first accumulation of energy controls first valve port and second of valve Valve port along the direction unilaterally connected by the first working hole to the first accumulator, when the first accumulation of energy control valve is in the second work shape During state, the first valve port of the first accumulation of energy control valve is connected with the second valve port；And/or, the 4th on-off control device includes that second stores Valve, the second accumulation of energy control valve can be controlled includes the first valve port and the second valve port, and the second accumulation of energy controls first valve port and second of valve Working hole is connected, and the second valve port of the second accumulation of energy control valve is connected with the second accumulator, and the second accumulation of energy control valve has first Working condition and the second working condition, when the second accumulation of energy control valve is in the first working condition, the of the second accumulation of energy control valve One valve port and the second valve port disconnect, when the second accumulation of energy control valve is in the second working condition, the first of the second accumulation of energy control valve Valve port is connected with the second valve port.

Alternatively, performing controlling organization includes that the elevator of executing agency performs winding lifting and elevator falls to making for controlling The winch control mechanism of industry, winch control mechanism includes the hoist motor with Sheng Kou and the mouth that falls, the second of switching valve of getting on or off the bus Valve port is connected with mouth is risen, and when winch control mechanism control elevator performs elevator weight-drop operation, switching valve of getting on or off the bus Second valve port can be connected with a liter mouth, to realize elevator whereabouts operation energy recovery function；And/or, performing controlling organization includes For controlling executing agency to perform the luffing controlling organization of luffing raising and the operation of luffing whereabouts, luffing controlling organization includes luffing Oil cylinder, the second valve port of switching valve of getting on or off the bus is connected with the rodless cavity of amplitude oil cylinder, and when luffing controlling organization controls execution machine When structure performs luffing whereabouts operation, the second valve port of switching valve of getting on or off the bus can be connected with the rodless cavity of amplitude oil cylinder, to realize Luffing whereabouts operation energy recovery function.

Alternatively, performing controlling organization includes winch control mechanism and luffing controlling organization, and operation energy recycle device is also Including being arranged at the second valve port of switching valve of getting on or off the bus and performing the energy regenerating switching device between controlling organization, energy regenerating Switching device be used for control get on or off the bus switching valve the second valve port switchably with the rodless cavity of liter mouth and amplitude oil cylinder in one Individual connection, elevator whereabouts operation energy recovery function and luffing whereabouts operation energy recovery function are realized to switch.

Alternatively, energy regenerating switching device include energy regenerating switching valve, energy regenerating switching valve include the first valve port, Second valve port and the 3rd valve port, the first valve port of energy regenerating switching valve are connected with the second valve port of switching valve of getting on or off the bus, energy The second valve port for reclaiming switching valve is connected with mouth is risen, and the 3rd valve port of energy regenerating switching valve connects with the rodless cavity of amplitude oil cylinder It is logical, and energy regenerating switching valve has the first working condition and the second working condition, when energy regenerating switching valve is in the first work When making state, the first valve port of energy regenerating switching valve is connected with the second valve port and the 3rd valve port ends, when energy regenerating switching When valve is in the second working condition, the first valve port of energy regenerating switching valve is connected with the 3rd valve port and the second valve port ends.

Alternatively, energy regenerating switching valve also include the 4th valve port, the 4th valve port of energy regenerating switching valve with perform control Mechanism connection processed, when energy regenerating switching valve is in the first working condition and the second working condition, energy regenerating switching valve 4th valve port is turned off, and energy regenerating switching valve also has the 3rd working condition, when energy regenerating switching valve is in the 3rd work When making state, the 4th valve port of energy regenerating switching valve is connected with the first valve port and the second valve port and the 3rd valve port are turned off, with Energy transition device is set to be execution controlling organization fuel feeding when executing agency normally performs operation.

Alternatively, winch control mechanism also includes hoist motor control device, and hoist motor control device is used to control to rise Mouthful and the oil-feed in mouth and another is fuel-displaced of falling, the 4th valve port of energy regenerating switching valve passes through hoist motor control device It is connected with hoist motor；And/or, luffing controlling organization also includes amplitude oil cylinder control device, and amplitude oil cylinder control device is used for Control amplitude oil cylinder rod chamber and rodless cavity in an oil-feed and another is fuel-displaced, the 4th valve port of energy regenerating switching valve It is connected with amplitude oil cylinder by amplitude oil cylinder control device.

Alternatively, hoist motor control device include hoisting control valve, hoisting control valve include the first valve port, Second valve port, the 3rd valve port and the 4th valve port, the first valve port of hoisting control valve and the 4th valve of energy regenerating switching valve Mouth connection, the second valve port of hoisting control valve is connected with fuel tank, and the 3rd valve port and liter mouth of hoisting control valve can lead to Connect disconnectedly, hoisting control valve the 4th valve port connect with the mouth that falls, hoisting control valve have the first working condition with Second working condition, when hoisting control valve is in the first working condition, first valve port and the of hoisting control valve Three valve ports are connected and the second valve port is connected with the 4th valve port, when hoisting control valve is in the second working condition, elevator liter First valve port of drop control valve is connected with the 4th valve port and the second valve port is connected with the 3rd valve port；And/or, amplitude oil cylinder control dress Put including luffing lift controil valve, luffing lift controil valve includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, First valve port of luffing lift controil valve is connected with the 4th valve port of energy regenerating switching valve, the second valve of luffing lift controil valve Mouth is connected with fuel tank, and the 3rd valve port of luffing lift controil valve can be connected to break-make with the rodless cavity of amplitude oil cylinder, luffing lifting The 4th valve port of valve is controlled to be connected with the rod chamber of amplitude oil cylinder, luffing lift controil valve has the first working condition and the second work Make state, when luffing lift controil valve is in the first working condition, first valve port and the 3rd valve port of luffing lift controil valve Connect and the second valve port is connected with the 4th valve port, when luffing lift controil valve is in the second working condition, luffing elevating control First valve port of valve is connected with the 4th valve port and the second valve port is connected with the 3rd valve port.

Alternatively, luffing controller for motor also includes luffing balanced valve, and luffing balanced valve includes the first valve port and second Valve port, the first valve port of luffing balanced valve is connected with the 3rd valve port of luffing lift controil valve, the second valve port of luffing balanced valve The rodless cavity connection of amplitude oil cylinder, and luffing balanced valve has the first working condition and the second working condition, when luffing balanced valve During in the first working condition, first valve port and the second valve port of luffing balanced valve are along the 3rd valve by luffing lift controil valve Mouthful to amplitude oil cylinder rodless cavity direction unilaterally connected, when luffing balanced valve be in the second working condition when, luffing balanced valve The first valve port connected with the second valve port；3rd valve port of energy regenerating switching valve is connected with the first valve port of luffing balanced valve.

Alternatively, the first valve port of hoisting control valve is also connected with upper car owner's fueller of crane, so that on Car owner's fueller also can be winch control mechanism fuel feeding；And/or, the first valve port of luffing lift controil valve also with upper car owner Fueller is connected, so that upper car owner's fueller also can be luffing controlling organization fuel feeding.

Alternatively, the first valve port of hoisting control valve is returned with the 4th valve port of energy regenerating switching valve along by energy 4th valve port of receipts switching valve controls the direction unilaterally connected of the first valve port of valve to hoisting, and hoisting controls valve Along unidirectional to the direction of the first valve port of hoisting control valve by main fueller between first valve port and main fueller Connection；And/or, the first valve port of luffing lift controil valve is cut with the 4th valve port of energy regenerating switching valve along by energy regenerating Change the direction unilaterally connected of the 4th valve port of valve to the first valve port of luffing lift controil valve, and luffing lift controil valve first Along the direction unilaterally connected of the first valve port by main fueller to luffing lift controil valve between valve port and main fueller.

Alternatively, crane hydraulic control system also includes power transmission controller, and power transmission controller is used for Switch between power connector state and power off state between control prime mover and energy transition device, wherein, During realizing traveling energy recovery function and during operation energy recovery function is realized, power transmission control dress Put between control energy transition device and prime mover in power connector state.

Alternatively, during executing agency normally performs operation, power transmission controller also controls hydraulic energy Power connector state is between conversion equipment and prime mover.

Alternatively, energy transition device also includes auxiliary pump, and the oil inlet of auxiliary pump is connected with fuel tank, auxiliary pump Oil-out is connected with the first working hole.

Alternatively, the oil-out of auxiliary pump is also connected with the second working hole, and when pump motor is in motor operating conditions, auxiliary The oil-out of pump can with the second working hole along the oil-out by auxiliary pump to the second working hole direction unilaterally connected so that Auxiliary pump can be pump motor repairing when pump motor is in motor operating conditions.

Alternatively, device for hydraulically actuating also includes being connected to overflow valve between the oil-out of auxiliary pump and the second working hole, The oil inlet of overflow valve is connected with the second working hole, and the oil-out of overflow valve is connected with the oil-out of auxiliary pump.

Alternatively, operation energy recycle device also includes the first energy-storage pressure detection means, the first energy-storage pressure detection dress Put the pressure for detecting the first accumulator；And/or, traveling energy recycle device also includes the second energy-storage pressure detection means, Second energy-storage pressure detection means is used to detect the pressure of the second accumulator；And/or, operation energy recycle device also includes getting on the bus Pressure-detecting device, pressure-detecting device of getting on the bus is used to detect the pressure for performing controlling organization.

Another aspect of the present invention additionally provides a kind of crane, and it includes executing agency and crane hydraulic pressure of the invention Control system.

Crane hydraulic control system of the invention, by its operation energy recycle device and exercise energy recycle device with The cooperation of energy transition device, can be by the potential energy in the kinetic energy in crane running braking procedure and falling process of heavy It is separately recovered and is stored in the first accumulator and the second accumulator and is reused, therefore, the present invention can be realized to rising Heavy-duty machine is got on the bus energy and the recycling of energy of getting off, and effectively reduces energy waste.

By being described in detail to exemplary embodiment of the invention referring to the drawings, further feature of the invention and Its advantage will be made apparent from.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also Other accompanying drawings are obtained with according to these accompanying drawings.

Fig. 1 shows the hydraulic schematic diagram of the crane hydraulic control system of one embodiment of the invention.

In figure：

1st, prime mover；

211st, hoist motor；212nd, hoisting control valve；213rd, elevator balance control mechanism；2131st, elevator balanced valve； 2132nd, elevator balanced valve control valve；221st, amplitude oil cylinder；222nd, luffing lift controil valve；223rd, luffing balance control mechanism； 2231st, luffing balanced valve；Luffing balanced valve controls valve；23rd, the first check valve；24th, the second check valve；25th, return filter；

3rd, energy transition device；31st, pump motor；311st, variable control mechanism；32nd, auxiliary pump；33rd, fluid-control one-way Valve；331st, check valve control valve；34th, repairing overflow valve；341st, repairing check valve；342nd, overflow valve；

4th, get on or off the bus switching valve；

51st, the first accumulator；52nd, the first energy-storage pressure detection means；53rd, the first accumulation of energy control valve；54th, energy regenerating is cut Change valve；55th, get on the bus pressure-detecting device；56th, the 3rd check valve；

61st, the second accumulator；62nd, the second energy-storage pressure detection means；63rd, the second accumulation of energy control valve；

7th, fuel tank；

81st, clutch；82nd, clutch controller；

9th, controller.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below Description only actually at least one exemplary embodiment is illustrative, and never conduct is to the present invention and its application or makes Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are without development creative work premise Lower obtained every other embodiment, belongs to the scope of protection of the invention.

May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.

In the description of the invention, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " it is laterally, vertical, The indicated orientation such as vertically, level " and " top, bottom " or position relationship are normally based on orientation shown in the drawings or position and close System, is for only for ease of the description present invention and is described with simplified, and in the case where opposite explanation is not made, these nouns of locality are not indicated that There must be specific orientation or with specific azimuth configuration and operation with the device or element for implying meaning, therefore can not manage It is limiting the scope of the invention to solve；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.

In the description of the invention, it is to be understood that limit parts using the word such as " first ", " second ", only It is for only for ease of and corresponding parts is distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore not It is understood that to be limiting the scope of the invention.

Fig. 1 shows one embodiment of crane hydraulic control system of the present invention.Reference picture 1, it is provided by the present invention Crane hydraulic control system, including prime mover 1 of crane running, the executing agency's reality for controlling crane can be driven The perform controlling organization and prime mover 1 for applying industry have the energy transition device 3 of power connector state, exercise energy time Receiving apparatus and operation energy recycle device, wherein：

Energy transition device 3 includes switchably working in the pump motor 31 of pump condition and motor operating conditions, pump Motor 31 has can the first working hole A for be connected of break-make and can second working of being connected of break-make with controlling organization is performed with fuel tank 7 Mouth B；Exercising energy recycle device includes the first accumulator 51 that can be connected to break-make with the first working hole A, operation energy regenerating Device includes being connected to break-make the second accumulator 61 with the second working hole B；

Operation energy recycle device coordinates with energy transition device 3, executing agency can be performed into weight-drop and made Transform gravitational energy during industry is stored in the first accumulator 51 for hydraulic energy, realizes operation energy recovery function, now, Pump motor 31 is in motor operating conditions, and the first working hole A is connected and by the oil of the first working hole A to fuel tank 7 with the first accumulator 51 Road is disconnected, and the second working hole B is connected and disconnected with the second accumulator 61 with controlling organization is performed；

Traveling energy recycle device coordinates with energy transition device 3, can be by crane running braking procedure Mechanical energy is converted into during hydraulic energy is stored in the second accumulator 61 and realizes traveling energy recovery function, and now, pump motor 31 is in Pump condition, the first working hole A is connected with fuel tank 7, and the second working hole B is connected with the second accumulator 61 and broken with controlling organization is performed Open.

Crane hydraulic control system of the invention, by its operation energy recycle device and exercise energy recycle device with The cooperation of energy transition device 3, crane running can be braked the kinetic energy and falling process of heavy during (brake) In potential energy be separately recovered and be stored in the first accumulator 51 and the second accumulator 61 in order to be used again, therefore, this Invention can realize the recycling to crane energy and energy of getting off, and effectively reduce energy waste.

In order to realize it is above-mentioned respectively can break-make connection, in the present invention, crane hydraulic control system can also include the first break-make Control device and the second on-off control device, operation energy recycle device can also include the 3rd on-off control device, and traveling Energy recycle device can also include the 4th on-off control device, wherein：First on-off control device is used to control first to work The break-make of mouth A and fuel tank 7, the second on-off control device is used to control the break-make of the second working hole B and execution controlling organization, the 3rd On-off control device is used to control the break-make of the first accumulator 51 and the first working hole A, and the 4th on-off control device is used to control The break-make of the second accumulator 52 and the second working hole B.And, when operation energy recovery function is realized, the first break-make control dress Put control to be disconnected by the oil circuit of the first working hole A to fuel tank 7, the second on-off control device controls the second working hole B and performs control Mechanism connection processed, the 3rd on-off control device controls the first working hole A to be connected with the first accumulator 51, and the 4th break-make control dress The second working hole B of control is put to be disconnected with the second accumulator 61；When traveling energy recovery function is realized, the first on-off control device The first working hole A is controlled to be connected with fuel tank 7, the 3rd on-off control device controls the first working hole A to be disconnected with the first accumulator 51, And the 4th on-off control device control the second working hole B connected with the second accumulator 61.

Due to the first on-off control device, the second on-off control device, the 3rd on-off control device and the 4th can be utilized On-off control device control respectively the break-make of the first working hole A and fuel tank 7, the second working hole B with perform controlling organization break-make, The break-make of the break-make and the second accumulator 52 and the second working hole B of the first accumulator 51 and the first working hole A, therefore, control More facilitate, control accuracy is higher；And, by this four cooperations of on-off control device, can not only ensure operation energy Reclaim function and traveling energy recovery function it is independent of one another, non-interference, realize it is significantly more efficient get on the bus energy recovery process and Get off energy recovery process, operation energy recovery process and traveling energy recovery process can also be avoided to normal operation of getting on the bus The influence of journey and normal driving process of getting off, it is ensured that crane being capable of normally travel or normal when that need not carry out energy regenerating Operation.It can be seen that, the present invention can easily and effectively ensure get off normal driving process, normal operation process of getting on the bus and operation energy Removal process and independent and orderly the carrying out of traveling energy recovery process.

Wherein, as a kind of implementation method of the second on-off control device of the invention, the second on-off control device can be wrapped Include switching valve 4 of getting on or off the bus, switching valve of getting on or off the bus 4 include the first valve port and the second valve port, the first valve port of switching valve of getting on or off the bus 4 with Second working hole B is connected, and the second valve port of switching valve of getting on or off the bus 4 is connected with controlling organization is performed, and switching valve 4 of getting on or off the bus has First working condition and the second working condition, when switching valve 4 of getting on or off the bus is in the first working condition, switching valve of getting on or off the bus 4 First valve port and the second valve port disconnect, when switching valve 4 of getting on or off the bus is in the second working condition, the first of switching valve of getting on or off the bus 4 Valve port is connected with the second valve port.Switching valve 4 is so got on or off the bus between the first working condition and the second working condition by control Switching, you can easily control the second working hole B and perform the break-make of controlling organization.

The executing agency of crane usually can perform elevator, luffing and flexible etc. single and multiple working pattern, phase Ying Di, the execution controlling organization of crane generally includes winch control mechanism, luffing controlling organization and pushing handle telescopic control mechanism etc., its In：The elevator of winch control mechanism control executing agency performs winding lifting operation and the operation of elevator whereabouts, and it generally includes volume Motor 211 and hoist motor control device are raised, hoist motor 211 is used to drive elevator to rotate, and hoist motor control device then leads to Cross control hoist motor 211 liters mouth H and fall an oil-feed in mouthful D and another it is fuel-displaced come control hoist motor 211 turn To, and then controlling elevator to perform winding lifting operation or the operation of elevator whereabouts, hoist motor control device generally includes elevator liter Drop control valve 212 and elevator balanced valve 2131；Luffing controlling organization control executing agency is performed under the operation of luffing raising and luffing Fall operation, and it generally includes amplitude oil cylinder 221 and amplitude oil cylinder control device, and amplitude oil cylinder 221 is used to drive luffing range of cantilever support, becomes Width cylinder control device then by an oil-feed in the rod chamber and rodless cavity that control amplitude oil cylinder 221 and another it is fuel-displaced come The cylinder rod of amplitude oil cylinder 211 is controlled to stretch, and then control realization luffing raising operation or the operation of luffing whereabouts, amplitude oil cylinder control Device generally includes luffing lift controil valve 222 and luffing balanced valve 2231.

In this case, crane hydraulic control system of the invention both could be arranged to only can elevator be fallen to making Gravitional force during industry is reclaimed, i.e., can realize elevator whereabouts operation energy recovery function；It can also be provided that only Gravitional force in the operation process of luffing whereabouts can be reclaimed, i.e., can realize luffing whereabouts operation energy regenerating work( Energy.

Wherein, based on foregoing switching valve 4 of getting on or off the bus, in order to realize elevator whereabouts operation energy recovery function, get on or off the bus and cut The second valve port for changing valve 4 can be connected with the liter mouth H of the hoist motor 211 of winch control mechanism, and switching valve 4 of getting on or off the bus Two valve ports can be connected when needing to realize elevator whereabouts operation energy recovery function with liter mouth H.Based on this, when rolling control machine When structure control elevator performs elevator whereabouts operation and needs to realize elevator whereabouts operation energy recovery function, from hoist motor 211 Liter mouth H outflow hydraulic oil can via in the second working condition get on or off the bus switching valve 4 flow direction work in motor operating conditions Pump motor 31, and via pump motor 31 flow into the first accumulator 51 for being connected with the first working hole A of pump motor 31 so that The gravitional force lost in the operation process of elevator whereabouts is converted into the hydraulic energy being stored in the first accumulator 51, realizes volume Raise whereabouts operation energy recovery function.

And in order to realize luffing whereabouts operation energy recovery function, the second valve port of foregoing switching valve 4 of getting on or off the bus then can be with Rodless cavity with the amplitude oil cylinder 221 of luffing controlling organization is connected, and the second valve port of switching valve 4 of getting on or off the bus can need reality Connected with the rodless cavity of amplitude oil cylinder 221 during existing luffing whereabouts operation energy recovery function.Based on this, luffing controlling organization is controlled When executing agency performs luffing whereabouts operation and needs to realize luffing whereabouts operation energy recovery function, from amplitude oil cylinder 221 The hydraulic oil of rodless cavity outflow can work in motor operating conditions via the flow direction of switching valve 4 of getting on or off the bus in the second working condition Pump motor 31, and via pump motor 31 flow into the first accumulator 51 for being connected with the first working hole A of pump motor 31 so that change The gravitional force lost in the operation process of width whereabouts is converted into the hydraulic energy being stored in the first accumulator 51, realizes luffing Whereabouts operation energy recovery function.

It is highly preferred that crane hydraulic control system of the invention is set to realize that operation energy in elevator whereabouts is returned Function is received, luffing whereabouts operation energy recovery function can be realized again.In this case, traveling energy regenerating dress of the invention Putting can also include being arranged at the second valve port of switching valve 4 of getting on or off the bus and perform the energy regenerating switching dress between controlling organization Put, the energy regenerating switching device be used for control get on or off the bus switching valve 4 the second valve port switchably with the liter of hoist motor 211 Mouth H is connected with the rodless cavity of amplitude oil cylinder 221.So when needing to realize elevator whereabouts operation energy recovery function When, it is possible to use energy switching control control get on or off the bus switching valve 4 the second valve port with liter mouth H connect, be easy to from a liter mouth H The hydraulic oil of outflow carries out recovery storage in flowing into the first accumulator 51, and working as needs to realize luffing whereabouts operation energy regenerating work( Can when, then the get on or off the bus rodless cavity of the second valve port and amplitude oil cylinder 221 of switching valve 4 of energy switching device control can be utilized to connect It is logical, it is easy to the hydraulic oil flowed out from the rodless cavity of amplitude oil cylinder 221 to carry out recovery storage in flowing into the first accumulator 51.It can be seen that, By setting energy regenerating switching device, can easily switch and realize that elevator whereabouts operation energy recovery function and luffing fall Operation energy recovery function, realizes significantly more efficient effects of energy saving and emission reduction.

Wherein, energy regenerating switching device of the invention can include energy regenerating switching valve 54, energy regenerating switching Valve 54 includes the first valve port, the second valve port and the 3rd valve port, wherein：First valve port of energy regenerating switching valve 54 is cut with getting on or off the bus The second valve port connection of valve 4 is changed, the second valve port of energy regenerating switching valve 54 is connected with mouth H is risen, energy regenerating switching valve 54 3rd valve port is connected with the rodless cavity of amplitude oil cylinder 221；And, the energy regenerating switching valve 54 has the first working condition and the Two working conditions, wherein：When energy regenerating switching valve 54 is in the first working condition, the first valve of energy regenerating switching valve 54 Mouth is connected with the second valve port and the 3rd valve port ends, when energy regenerating switching valve 54 is in the second working condition, energy regenerating First valve port of switching valve 54 is connected with the 3rd valve port and the second valve port ends.

By setting above-mentioned energy regenerating switching valve 54 so that when the energy regenerating switching valve 54 is in the first working condition And get on or off the bus switching valve 54 be in the second working condition when, the second working hole B can be connected with a liter mouth H, be easy to pump motor 31 to drive In dynamic elevator whereabouts operation process from liter hydraulic oil of mouth H outflows into the first accumulator 51 in stored, under realizing elevator Fall operation energy recovery function；And work as energy regenerating switching valve 54 and be in the second working condition and switching valve 54 of getting on or off the bus and be in the During two working conditions, the second working hole B can be connected with the rodless cavity of amplitude oil cylinder 211, be easy under the driving luffing of pump motor 31 The hydraulic oil that is flowed out from the rodless cavity of amplitude oil cylinder 211 in operation process fall into being stored in the first accumulator 51, it is real Existing luffing whereabouts operation energy recovery function.

In addition, in order to more fully utilize energy transition device 3, in the present invention, energy transition device 3 is also It is configured to (hydraulic energy can be referred to as to perform controlling organization supply hydraulic oil when executing agency normally performs operation The oil supply function of getting on the bus of conversion equipment 3, in order to describe), now, pump motor 31 is in pump condition, the first working hole A and fuel tank 7 connections, the second working hole B is connected and disconnected with the second accumulator 61 with controlling organization is performed.Based on this, hydraulic energy of the invention Amount conversion equipment 3 is not only able to be worked in the case where energy regenerating is needed, and can also be in the case of normal operation of getting on the bus Work, is normal operation process (such as elevator, the luffing and flexible) fuel feeding got on the bus as the oil sources got on the bus, and this aspect can To improve the utilization rate of energy transition device 3, abundant energy transition device 3 is in crane hydraulic control system Function；On the other hand, this causes that the energy transition device 3 both can be operation of getting on the bus together with the original oil sources of crane Fuel feeding, effectively improves the operating efficiency of crane, and reduce the requirement to original oil sources equipment, it is also possible to omit crane original Oil sources, be individually for fuel feeding of getting on the bus, realize to the integrally-built simplification of crane, reduces cost.

In order to simplify the structure of crane hydraulic control system, and be easy to switching control, energy transition device it is upper Car oil supply function can also reclaim switching valve 54 to realize based on preceding energy.And in order to realize energy transition device 3 Get on the bus oil supply function, energy regenerating switching valve 54 of the invention can also include the 4th valve port, the energy regenerating switching valve 54 4th valve port is connected with controlling organization is performed, when energy regenerating switching valve 54 is in the first working condition and the second working condition When, the 4th valve port of energy regenerating switching valve 54 is turned off, and energy regenerating switching valve 54 also has the 3rd working condition, works as energy When amount reclaims switching valve 54 in three working conditions, the 4th valve port and the energy regenerating switching valve 54 of energy regenerating switching valve 54 The connection of the first valve port and second valve port and the 3rd valve port of energy regenerating switching valve 54 be turned off.So can not only guarantee Amount recovery switching valve 54 still is able to switching and realizes elevator whereabouts operation energy recovery function and luffing whereabouts operation energy regenerating Function, but also energy transition device can be controlled by controlling energy regenerating switching valve 54 to be in the 3rd working condition 3 the second working hole B is connected with controlling organization is performed, and is easy to the energy transition device 3 in pump condition in executing agency To perform controlling organization fuel feeding during normal execution operation, the oil supply function of getting on the bus of energy transition device 3 is realized.

Wherein, the 4th valve port of energy regenerating switching valve 54 and the connection for performing controlling organization, can be by energy regenerating 4th valve port of switching valve 54 realizes with the connection of hoist motor control device, the 4th valve of such as energy regenerating switching valve 54 Mouth can be connected with hoisting control valve 212, and in this case, the 4th valve port of energy regenerating switching valve 54 passes through elevator horse It is connected with hoist motor 211 up to control device, so that pump motor 31 can be elevator horse by hoist motor control device Up to 211 fuel feeding；Or, it is also possible to by the 4th valve port of energy regenerating switching valve 54 and the connection of amplitude oil cylinder control device come Realize, the 4th valve port of such as energy regenerating switching valve 54 can be connected with luffing lift controil valve 222, in this case, energy The 4th valve port that amount reclaims switching valve 54 is connected by amplitude oil cylinder control device with amplitude oil cylinder 221, so that pump motor 31 can be the fuel feeding of amplitude oil cylinder 221 by amplitude oil cylinder control device.It is highly preferred that the 4th valve of energy regenerating switching valve 54 Mouth can be connected with hoist motor control device and amplitude oil cylinder control device, so that energy transition device 3 can be Elevator operating mode and the equal fuel feeding of luffing operating mode.Certainly, the 4th valve port of energy regenerating switching valve 54 can also be while and telescopic oil cylinder Control device is connected, so that energy transition device 3 can also be flexible operating mode fuel feeding, its principle is similar with luffing operating mode, So, no longer describe in detail herein.

The present invention is described further with reference to the embodiment shown in Fig. 1.The crane liquid of the embodiment Pressure control system can either meet normal work demand of getting on or off the bus, and energy recovery function, and achieved energy can be realized again Amount reclaims function had both included traveling energy recovery function, and including operation energy recovery function, and, operation energy therein is returned Receiving function both includes elevator whereabouts operation energy recovery function, and including luffing whereabouts operation energy recovery function.

As shown in figure 1, in this embodiment, crane hydraulic control system includes prime mover 1, performs controlling organization, liquid Pressure energy conversion device 3, the hydraulic control one-way valve 33 as the first on-off control device, as the upper and lower of the second on-off control device Car switching valve 4, operation energy recycle device, traveling energy recycle device, power transmission controller and controller 9.

Wherein, prime mover 1 is used as the power source of crane hydraulic control system, for example, can be engine.The embodiment Prime mover 1 can not only provide power for the normal driving process of crane, additionally it is possible to be energy recovery process and crane Normal operation process of getting on the bus power is provided, mainly by driving energy transition device 3 to realize, this point can be for the latter It is described in detail below.

Energy transition device 3 is used to realize the conversion of hydraulic energy and mechanical energy.In this embodiment, hydraulic energy turns Changing device 3 can realize the function of three aspects, and it can coordinate with operation energy recycle device realizes operation energy recovery function, Can coordinate with traveling energy recycle device again and realize traveling energy recovery function, additionally it is possible to be used as to get on the bus when normal operation is got on the bus Oil sources, is normal operation process fuel feeding of getting on the bus, and the multiplex set-up mode of a this energy transition device 3 can effectively letter Change the structure and control process of crane hydraulic control system.

As shown in Figure 1, the energy transition device 3 of the embodiment is connected by power transmission controller with prime mover 1 Connect, and the energy transition device of the embodiment includes pump motor 31 and auxiliary pump 32.

Pump motor 31 be it is a kind of can be by the Hydraulic Elements (also known as secondary component) of hydraulic energy and the mutual phase transformation of mechanical energy, its energy Switch between pump condition and motor operating conditions, wherein：During in pump condition, hydraulic energy can be converted mechanical energy into, hydraulic oil by First working hole A of pump motor 31 flows to the second working hole B；Can be again mechanical energy by hydraulic energy transfer during in motor operating conditions, Hydraulic oil flows to the first working hole A by the second working hole B of pump motor 31.No matter pump condition or motor operating conditions are worked in, should The rotation direction all same of the pump motor 31 of embodiment, difference is that the quadrant residing for its swash plate pivot angle is different, namely the implementation The pump motor 31 of example is to realize that operating mode switches by controlling its swash plate pivot angle to change in different quadrants.

As shown in Figure 1, in this embodiment, pump motor 31 is connected by power transmission controller with prime mover 1, dynamic Under the control of power transmission control device, there is power connector state and power off state between pump motor 31 and prime mover 1, its In, during in power connector state, prime mover 1 can transmit power to pump motor 31 so that pump motor 31 can be in prime mover 1 Driving under along certain orientation rotate；And when being in power off state, prime mover 1 is then dynamic without the transmission of normal direction pump motor 31 Power.And, as shown in figure 1, the pump motor 31 of the embodiment has the variable control mechanism that can adjust swash plate swash angle position 311, and variable control mechanism 311 electrically connects with controller 9, such controller 9 can change pump with control variables controlling organization 311 The swash plate swash angle position of motor 31, realizes the control to the switching of the operating mode of pump motor 31 and discharge capacity etc..It can be seen that, the pump horse of the embodiment Up to 31 switchings that pump condition and motor operating conditions are realized by way of automatically controlled variable, simple structure is easy to control.

First working hole A of pump motor 31 is used as inlet port when pump motor 31 is in pump condition, and at pump motor 31 It is used as force feed mouth when motor operating conditions.In this embodiment, the first working hole A of pump motor 31 is by hydraulic control one-way valve 33 and oil Case 7 can break-make connection, the break-make between the first working hole A of control of hydraulic control one-way valve 33 and fuel tank 7.

Specifically, as shown in figure 1, the oil inlet of hydraulic control one-way valve 33 is connected with fuel tank 7, the oil-out of hydraulic control one-way valve 33 Connected with the first working hole A.Based on this, when the obstructed pressure oil in the hydraulic control end of hydraulic control one-way valve 33, hydraulic control one-way valve 33 with it is general Logical check valve is identical, and control hydraulic oil can only flow to the first working hole A by fuel tank 7 through hydraulic control one-way valve 33, and be unable to reverse flow It is dynamic, that is, the blocking function of motor operating conditions is realized, this is easy to the liquid for controlling pump motor 31 to be exported when needing and reclaiming and get on the bus energy Force feed cannot be back to fuel tank 7 and can only flow into and store in the first accumulator 51 of operation energy recycle device；Work as hydraulic control During the logical pressure oil in the hydraulic control end of check valve 33, the bidirectional open of hydraulic control one-way valve valve 33, now hydraulic oil flow through hydraulic control one-way valve 33 Flow direction depend on its oil inlet and which pressure ratio of oil-out is larger, if pressure the first working hole A at is more than fuel tank 7 Pressure, then hydraulic oil can flow to fuel tank 7 through hydraulic control one-way valve 33 by the first working hole A, this is easy to needing off-load or needs The hydraulic oil at the first working hole A is controlled directly to be back to fuel tank 7 without back pressure ground when reusing reclaimed braking energy.

More specifically, as shown in Figure 1, the hydraulic control one-way valve 33 of the embodiment, its hydraulic control end connects with check valve control valve 331 Connect, whether check valve control valve 331 is used to control the logical pressure oil in hydraulic control end of hydraulic control one-way valve 33, and then controls first to work Break-make between mouth A and fuel tank 7.Certainly, check valve control valve 331 is not limited to control end Y1 two shown in Fig. 1 Position-3-way solenoid valve structure, as long as in fact, the oily break-make of the hydraulic control end pressure of hydraulic control one-way valve 33 can be controlled, in this hair Within bright protection domain.

Second working hole B of pump motor 31 is used as force feed mouth when pump motor 31 is in pump condition, and at pump motor 31 It is used as inlet port when motor operating conditions.In this embodiment, the second working hole B of pump motor 31 by get on or off the bus switching valve 4 with Performing controlling organization can connect to break-make, and switching valve of getting on or off the bus 4 controls logical between the second working hole B and execution controlling organization It is disconnected.

Specifically, as shown in figure 1, the switching valve 4 of getting on or off the bus of the embodiment is using single valve arrangement (two position two-way valve), bag The first valve port and the second valve port are included, wherein：First valve port of switching valve of getting on or off the bus 4 is connected with the second working hole B, switching of getting on or off the bus Second valve port of valve 4 is connected with controlling organization is performed.And, the switching valve 4 of getting on or off the bus (is in Fig. 1 with the first valve position Left position) and the second valve position (being right position in Fig. 1), wherein：When switching valve 4 of getting on or off the bus is in the first valve position, gets on or off the bus and cut Change valve 4 and work in the first working condition, the first valve port of switching valve of getting on or off the bus 4 and the second valve port disconnect so that the second working hole B Disconnected with the oil circuit performed between controlling organization；When switching valve 4 of getting on or off the bus is in the second valve position, switching valve of getting on or off the bus 4 works In the second working condition, the first valve port of switching valve of getting on or off the bus 4 is connected with the second valve port so that the second working hole B with perform control Oil communication between mechanism processed.So by control get on or off the bus switching valve 4 the first valve position and the second valve position between switch, i.e., Can easily control the second working hole B with perform controlling organization break-make, and then be easy to control get on the bus and get off switch over And it is easy to control switching to realize traveling energy recovery function and operation energy recovery function.

More specifically, as shown in Figure 1, the switching valve 4 of getting on or off the bus of the embodiment, it is in the first valve by the first valve position Mouthful and the second valve port between oppositely arranged two check valves come realize its first valve port and the second valve port the first valve position disconnection, It is to be understood by those skilled in the art that can also use at the first valve position directly block the first valve port and the second valve port etc. its His mode realizes the disconnection of the first valve port and the second valve port at the first valve position；In addition, the switching valve 4 of getting on or off the bus shown in Fig. 1, Its control end Y2 is electrically connected with controller 9, controller 9 control this get on or off the bus switching valve 4 the first valve position and the second valve position between Switching, but in fact, switching valve 4 of getting on or off the bus can also be realized in the first valve position and the second valve position using other modes such as hydraulic controls Between switching.

Auxiliary pump 32 is used to for mechanical energy to be converted into hydraulic energy, for example, can be centrifugal pump.In this embodiment, auxiliary pump 32 also have power connector state with prime mover 1, in order that the structure of energy transition device 3 is simpler compact, and just Just control auxiliary pump 32 works asynchronously with pump motor 31, and the auxiliary pump 32 of the embodiment is connected with the axis of pump motor 31, auxiliary pump 32 are mainly used in additional mechanical supercharging, improve the service behaviour of energy transition device 3.

As shown in figure 1, the auxiliary pump 32 of the embodiment, its oil inlet is connected with fuel tank 7, its oil-out and the first working hole A is connected.Based on this, when auxiliary pump 32 works, its oil pumped out from fuel tank 7 can flow to the first working hole A of pump motor 31, This can effectively prevent pump motor 31 from producing negative pressure at the first working hole A when pump condition is worked in, and can not only reduce pump Motor 31 is produced and is emptied the risk of cavitation erosion, in helping to extend the service life of pump motor 31 and reducing the course of work of pump motor 31 Noise, and also helping makes pump motor 31 in maximum pump discharge with working speed higher, improves hydraulic energy conversion The service behaviour of device 3.

And, in this embodiment, the oil-out of auxiliary pump 32 is also connected with the second working hole B, and at pump motor 31 When motor operating conditions, the oil-out of auxiliary pump 32 can be with the second working hole B along the oil-out by auxiliary pump 32 to the second work Make the direction unilaterally connected of mouth B.So when pump motor 31 works in motor operating conditions, due to the second working hole B of pump motor 31 Pressure of the pressure less than the first working hole A, therefore, the hydraulic oil that auxiliary pump 31 is pumped out from fuel tank 7 is no longer via auxiliary pump 31 Connection oil circuit between oil-out and the first working hole A flows to the first working hole A, but flows at the second working hole B so that auxiliary It can be the repairing of pump motor 31 in motor operating conditions to help pump 32, and this is it is possible to prevente effectively from when pump motor 31 works in motor operating conditions There is emptying phenomenon, help further to extend the service life of pump motor 31, and further improve the workability of pump motor 31 Energy.Especially, in this embodiment, the pump motor 31 in motor operating conditions can be used for travelling the row that energy recycle device is reclaimed Sail braking energy and discharge the process that utilizes again, therefore, auxiliary pump 32 is in this process to the repairing of pump motor 31, moreover it is possible to so that the mistake Steadily efficiently, the course of work that crane hydraulic control system can be combined behind this partial content is further illustrated Cheng Gengjia.And Because the oil-out of auxiliary oil pump 32 to the second working hole B is unilaterally connected, so, the hydraulic oil that auxiliary pump 32 can be caused to pump out Remain to flow to the first working hole A when pump motor 31 works in pump condition, realize the foregoing repairing to the first working hole A.

Specifically, in order that the oil-out of auxiliary pump 32 and the second working hole B can be along the oil-outs by auxiliary pump 32 To the direction unilaterally connected of the second working hole B, as shown in figure 1, the energy transition device 3 of the embodiment also includes repairing list To valve 341, the oil inlet of the repairing check valve 341 is connected with the oil-out of auxiliary pump 32, the oil-out of repairing check valve 341 with Second working hole B is connected.Based on this, when pump motor 31 works in high pressure at motor operating conditions and the oil-out of auxiliary pump 32 and the When the difference of the low pressure at two working hole B can open repairing check valve 341, oil-out and second work of auxiliary pump 32 are controlled Mouthful B along the oil-out by auxiliary pump 32 to the second working hole B direction unilaterally connected so that auxiliary pump 32 can be to the second work Make mouth B pump oils, and then realize required repairing function；And because repairing check valve 341 reversely ends, therefore, when pump motor 31 Work in pump condition or the oil-out of auxiliary pump 31 not enough with the pressure difference of the second working hole B of the pump motor 31 for working in motor operating conditions When, repairing check valve 341 cannot be opened, then the hydraulic oil that auxiliary pump 32 is pumped out cannot flow through repairing check valve 341 and flow to second Working hole B, and connection oil circuit that can only be still between the oil-out of auxiliary pump 31 and the first working hole A flows to the first working hole A, The repairing to the first working hole A needed for realizing.

It can be seen that, the set-up mode based on the embodiment, auxiliary pump 32 can be the repairing of pump motor 31 in pump condition, and Can be the repairing of pump motor 31 in motor operating conditions, it is possible to achieve to additional mechanical supercharging of the pump motor 31 under Double-working-condition, prevent pump There is suck erosion in motor 31, be effectively improved the service behaviour of pump motor 31, and extend pump horse under pump condition and motor operating conditions Up to 31 service life.

In addition, as shown in figure 1, in this embodiment, energy transition device 3 also includes overflow valve 342, the overflow valve 342 oil inlet is connected with the second working hole B, and the oil-out of the overflow valve 342 is connected with the oil-out of auxiliary pump 32.Due to overflowing Stream valve 342 can be opened at the second working hole B during hypertonia, the hydraulic oil at the second working hole B is flowed through overflow valve 342 And the connection oil circuit overflow between the oil-out of auxiliary pump 32 and the first working hole A to the first working hole A, (now pump motor 31 is in Pump condition, forms internal oil circulation), therefore, it is possible to realize the high pressure kicks function of the second working hole B, to working in pump work The pump motor 31 of condition forms safeguard protection.

And, as shown in figure 1, in this embodiment, repairing check valve 341 is integrated into repairing overflow valve with overflow valve 342 34 so that the oil-out of auxiliary pump 32 is connected by the repairing overflow valve 34 with the second working hole B, so setting can cause this The overall structure of the crane hydraulic control system of embodiment is simpler compact, control of being also more convenient for.

Power transmission controller be used to controlling between prime mover 1 and energy transition device 3 whether power connector, make Can switch between power connector state and power off state between prime mover 1 and energy transition device 3.By setting Power transmission controller is put, due to that can cause that it is dynamic that prime mover 1 is only just switched to when needed with energy transition device 3 Power connection status, accordingly, with respect to the feelings that power connector state is constantly between prime mover 1 and energy transition device 3 Condition, can more effectively reducing energy consumption, it is cost-effective.

Specifically, as shown in figure 1, the power transmission controller of the embodiment includes that clutch 81 and clutch control are filled Put 82, clutch 81 is connected between prime mover 1 and energy transition device 3, clutch controller 82 be used for control from Clutch 81 switches between engagement state and off-state, changeable between energy transition device 3 and prime mover 1 to control A state of the ground in power connector state and power off state.Wherein, the mistake of traveling energy recovery function is being realized In journey and during operation energy recovery function is realized, the control clutch 81 of clutch controller 82 is in joint shape State, is in power connector state between control energy transition device 3 and prime mover 1, enable prime mover 1 to hydraulic energy Conversion equipment 3 transmits power, and then allows energy transition device 3 with operation energy recycle device and traveling energy regenerating Device coordinates realizes energy recovery function；And, during executing agency normally performs operation, clutch controller 82 Clutch 81 can also be controlled to be in engagement state, this aspect is easy to energy transition device 3 when normal operation is got on the bus It is fuel feeding of getting on the bus, the energy on the other hand also allowing for being reclaimed in the operation process of whereabouts can be used again, service hoisting The oil absorbency of pump motor 31.

And in crane normal driving process, when prime mover 1 itself is clutch control when disclosure satisfy that driving requirements Device 82 can control clutch 81 to be off, and power is between control energy transition device 3 and prime mover 1 Dissengaged positions, cut-out prime mover 1 is transmitted to the power of energy transition device 3, so that energy transition device 3 etc. will not Influence is produced on normal driving process；When prime mover 1 is difficult to meet driving requirements, such as when starting to walk or climbing, from Clutch control device 82 can also control clutch 81 to be in engagement state, be easy to the energy reclaimed in braking procedure is travelled Can be used again, be converted into mechanical energy auxiliary travelling.

More specifically, as shown in Figure 1, the clutch controller 82 of the embodiment uses Hydraulic Elements, specially one Two-position three way magnetic valve with control end Y10 so that the embodiment realizes the control to clutch 81 by hydraulic control mode.But It will be appreciated by those skilled in the art that in other embodiments of the invention, it would however also be possible to employ an electronically or mechanically control etc. other Mode is controlled to clutch 81.

Performing controlling organization is used to control the executing agency of crane to implement operation, for example, implement elevator, luffing and stretch Deng operation.As shown in figure 1, in this embodiment, performing controlling organization includes winch control mechanism and luffing controlling organization, its In：Winch control mechanism is used to control the elevator of executing agency to perform winding lifting operation and the operation of elevator whereabouts, and it includes volume Motor 211 and hoist motor control device are raised, hoist motor 211 is used to drive elevator to rotate, and hoist motor control device then leads to Cross control hoist motor 211 liters mouth H and fall an oil-feed in mouthful D and another it is fuel-displaced come control hoist motor 211 turn To, and then control elevator to perform winding lifting operation or the operation of elevator whereabouts；Luffing controlling organization control executing agency performs change The operation of width raising and the operation of luffing whereabouts, it includes amplitude oil cylinder 221 and amplitude oil cylinder control device, and amplitude oil cylinder 221 is used for Luffing range of cantilever support, amplitude oil cylinder control device is driven then to enter by the rod chamber and rodless cavity that control amplitude oil cylinder 221 Oily and another fuel-displaced cylinder rod to control amplitude oil cylinder 211 is flexible, and then control realization luffing raising operation or luffing fall Operation.

Specifically, as shown in Figure 1, the hoist motor control device of the embodiment includes that hoisting controls valve 212 and volume Raise balance control mechanism 213；And the amplitude oil cylinder control device of the embodiment includes that luffing lift controil valve 222 and luffing are balanced Controlling organization 223.

Wherein, hoisting control valve 212 is used to control hydraulic oil to flow through the flow direction of hoist motor 221, so that by control The steering of hoist motor processed 211 come control elevator perform winding lifting operation or the operation of elevator whereabouts.As shown in figure 1, the reality Apply example hoisting control valve 212 include the first valve port, the second valve port, the 3rd valve port and the 4th valve port, its first valve port with The fueller connection of getting on the bus of crane, its second valve port is connected with fuel tank 7, and its 3rd valve port can be connected to break-make with mouth H is risen, Its 4th valve port is connected with mouthful D that falls；And, hoisting control valve 212 has the first working condition (upper in corresponding diagram 1 Position) and the second working condition (bottom in corresponding diagram 1), wherein：When hoisting control valve 212 is in the first working condition, First valve port of hoisting control valve 212 is connected with the 3rd valve port and the second valve port is connected with the 4th valve port, and this causes to get on the bus The pressure oil that fueller is supplied now can via hoisting control valve 212 enter rise a mouth H, and from fall mouthful D again via Hoisting control valve 212 flows back to fuel tank 7, drives hoist motor 211 to be rotated (referred to as rotate forward) to first direction, realizes hoisting crane Rise operation；When hoisting control valve 212 is in the second working condition, hoisting controls first valve port and the 4th of valve 212 Valve port is connected and the second valve port is connected with the 3rd valve port, and the pressure oil that this fueller that causes to get on the bus is supplied now can be via Hoisting control valve 212 in the second working condition enters to fall mouthful D, and from liter mouth H again via in the second working condition Hoisting control valve 212 flow back to fuel tank 7, drive hoist motor 211 to rotate (letter to the second direction opposite with first direction Claim reversion), realize the operation of elevator whereabouts.

And, as shown in Figure 1, the hoisting control valve 212 of the embodiment also has the 3rd working condition (corresponding diagram 1 Shown middle position), and when hoisting control valve 212 is in three working conditions, hoisting controls the first valve of valve 212 Mouthful connected with the 4th valve port with the disconnection of the 3rd valve port and the second valve port, the pressure oil that this fueller that causes to get on the bus is supplied is now Loop cannot be formed via hoisting control valve 212 again, elevator operation stops.It should be noted that hoisting control valve 212 the 3rd working condition is not limited to the set-up mode shown in Fig. 1, for example, hoisting control valve 212 is set into place Its first valve port, the second valve port, the 3rd valve port and the 4th valve port are turned off when three working conditions, it is also possible to so that elevator is made Industry stops.

Elevator balance control mechanism 212 is arranged between the 3rd valve port of liter mouth H and hoisting control valve 212, and it leads to Control hoisting is crossed to control the break-make between the 3rd valve port of valve 212 and liter mouth H to improve the safety of elevator operation process Property.

As shown in Figure 1, the elevator balance control mechanism 213 of the embodiment includes elevator balanced valve 2131, elevator balance Valve 2131 includes the first valve port and the second valve port, the of the first valve port of elevator balanced valve 2131 and hoisting control valve 212 Three valve ports are connected, and the second valve port of elevator balanced valve 2131 is connected with mouth H is risen；And the elevator balanced valve 2131 has the first work State (the left position in corresponding diagram 1) and the second working condition (the right position in corresponding diagram 1), wherein：At elevator balanced valve 2131 When the first working condition, first valve port and the second valve port of elevator balanced valve 2131 are along by hoisting control valve 212 3rd valve port extremely rises the direction unilaterally connected of mouth H, so that hydraulic oil flows through the elevator balanced valve 2131 in the first working condition When a mouth H can only be risen by the 3rd valve port flow direction of hoisting control valve 212, and be unable to reverse flow, elevator operation can be improved When security；And when elevator balanced valve 2131 is in the second working condition, the first valve port of elevator balanced valve 2131 and the Two valve ports are connected so that hydraulic oil can flow through the elevator balanced valve 2131 in the second working condition and flow to elevator by liter mouth H 3rd valve port of lift controil valve 212, is easy to implement the operation of elevator whereabouts.

More specifically, as shown in figure 1, when elevator balanced valve 2131 be in the first working condition when, elevator balanced valve 2131 The first valve port and the second valve port between realize above-mentioned controlling the of valve 212 along by hoisting by setting check valve even Three valve ports extremely rise the unilaterally connected in mouth H directions；When elevator balanced valve 2131 is in the second working condition, elevator balanced valve 2131 The first valve port and the second valve port between by damp connect, so can by adjust damping size flow through elevator to adjust The flow of balanced valve 2131, and then elevator falling speed can be adjusted.

It can be seen that, switched between the first working condition and the second working condition by controlling elevator balanced valve 2131, you can Break-make between 3rd valve port and liter mouth H of control hoisting control valve 212.

And control elevator balanced valve 2131 to switch between the first working condition and the second working condition for convenience, such as scheme Shown in 1, the elevator balance control mechanism 213 of the embodiment also includes that elevator balanced valve controls valve 2132, the elevator balanced valve control Valve processed 2132 is connected to the control end Y9 of elevator balanced valve 2131, by controlling whether the control end Y9 to elevator balanced valve 2131 Pressure oil is passed through to control elevator balanced valve 2131 to switch between the first working condition and the second working condition.

Luffing lift controil valve 222 is used to control hydraulic oil to flow through the flow direction of amplitude oil cylinder 221, so that by controlling luffing The telescopic direction of oil cylinder 221 come control perform the operation of luffing raising or the operation of luffing whereabouts.As shown in figure 1, the embodiment Luffing lift controil valve 222 includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, luffing lift controil valve 222 First valve port is connected with the fueller of getting on the bus of crane, and the second valve port of luffing lift controil valve 222 is connected with fuel tank 7, is become 3rd valve port of width lift controil valve 222 can be connected to break-make with the rodless cavity of amplitude oil cylinder 221, luffing lift controil valve 222 The 4th valve port connected with the rod chamber of amplitude oil cylinder 221；And luffing lift controil valve 222 has the first working condition (correspondence It is upper in Fig. 1) and the second working condition (bottom in corresponding diagram 1), wherein：Luffing lift controil valve 222 is in the first work When making state, the first valve port of luffing lift controil valve 222 is connected with the 3rd valve port and the second valve port is connected with the 4th valve port, this So that the pressure oil that fueller of getting on the bus is supplied now can enter amplitude oil cylinder 221 via the luffing lift controil valve 222 Hydraulic oil in rod chamber, and the rodless cavity of amplitude oil cylinder 221 can flow back to fuel tank 7 via the luffing lift controil valve 222 again, drive The cylinder rod of dynamic amplitude oil cylinder 221 is stretched out, and realizes luffing raising operation；When luffing lift controil valve 222 is in the second working condition, First valve port of luffing lift controil valve 222 is connected with the 4th valve port and the second valve port is connected with the 3rd valve port, and this causes to get on the bus The pressure oil that fueller is supplied can now enter the rodless cavity of amplitude oil cylinder 221 via the luffing lift controil valve 222, And the hydraulic oil in the rod chamber of amplitude oil cylinder 221 can flow back to fuel tank 7 via the luffing lift controil valve 222 again, drive luffing The cylinder rod of oil cylinder 221 is retracted, and realizes the operation of luffing whereabouts.

And, as shown in Figure 1, the luffing lift controil valve 222 of the embodiment also has the 3rd working condition (corresponding diagram 1 In middle position), when luffing lift controil valve 222 be in three working conditions when, the first valve port of luffing lift controil valve 222 with 3rd valve port is disconnected and the second valve port is connected with the 4th valve port, and the pressure oil that this fueller that causes to get on the bus is supplied now cannot Loop is formed via hoisting control valve 222 again, luffing operation stops.Certainly, to realize that luffing operation stops, luffing liter Drop control valve 222 it can also be provided that in three working conditions when its first valve port, the second valve port, the 3rd valve port and the 4th valve Mouthful it is turned off, and the set-up mode of the 3rd working condition of luffing lift controil valve 222 shown in Fig. 1, it is more convenient for realizing luffing Whereabouts operation energy recovery function, and be also convenient for during luffing whereabouts operation energy recovery function is realized by being in Pressure oil is passed through at second valve port of the luffing lift controil valve 222 of the 3rd working condition to be the rod chamber of amplitude oil cylinder 221 Repairing, prevents from being emptied cavitation erosion.

Luffing balance control mechanism 223 is arranged at the rodless cavity and the 3rd of luffing lift controil valve 222 of amplitude oil cylinder 221 Between valve port, it passes through to control the break-make between the 3rd valve port of luffing lift controil valve 222 and the rodless cavity of amplitude oil cylinder 221, To improve security during luffing operation.

As shown in Figure 1, the luffing balance control mechanism of the embodiment includes luffing balanced valve 2231, the luffing balanced valve 2231 include the first valve port and the second valve port, the first valve port of luffing balanced valve 2231 and the 3rd of luffing lift controil valve 222 the Valve port is connected, the rodless cavity connection of the second valve port amplitude oil cylinder 221 of luffing balanced valve 2231；And luffing balanced valve 2231 has First working condition (the left position in corresponding diagram 1) and the second working condition (the right position in corresponding diagram 1), wherein：When luffing balance When valve 2231 is in the first working condition, first valve port and the second valve port of luffing balanced valve 2231 are along by luffing elevating control 3rd valve port of valve 222 to the rodless cavity of amplitude oil cylinder 221 direction unilaterally connected so that hydraulic oil flow through in first work During the luffing balanced valve 2231 of state can only by the 3rd valve port of luffing lift controil valve 222 flow to amplitude oil cylinder 221 without bar Chamber, and reverse flow is unable to, this can improve security during luffing operation；When luffing balanced valve 2231 is in the second work shape During state, the first valve port of luffing balanced valve 2231 is connected with the second valve port so that hydraulic oil can be by the rodless cavity of amplitude oil cylinder 221 Flow through the luffing balanced valve 2231 in the second working condition and flow to the 3rd valve port that hoisting controls valve 212, be easy to implement The operation of luffing whereabouts.

More specifically, as shown in figure 1, when luffing balanced valve 2231 be in the first working condition when, luffing balanced valve 2231 The first valve port and the second valve port between it is even above-mentioned along by the of luffing lift controil valve 222 to realize by setting check valve Three valve ports to the rodless cavity direction of amplitude oil cylinder 221 unilaterally connected；When luffing balanced valve 2231 is in the second working condition, By damping connection between first valve port and the second valve port of luffing balanced valve 2231, so can be by adjusting the size for damping The flow of luffing balanced valve 2231 is flowed through to adjust, and then luffing falling speed can be adjusted.

It can be seen that, switched between the first working condition and the second working condition by controlling luffing balanced valve 2231, you can Break-make between 3rd valve port and the rodless cavity of amplitude oil cylinder 221 of control luffing lift controil valve 222.

And control luffing balanced valve 2231 to switch between the first working condition and the second working condition for convenience, such as scheme Shown in 1, the luffing balance control mechanism 223 of the embodiment also includes that luffing balanced valve controls valve 2232, the luffing balanced valve control Valve processed 2232 is connected to the control end Y8 of luffing balanced valve 2231, by controlling whether the control end Y8 to luffing balanced valve 2231 Pressure oil is passed through to control luffing balanced valve 2231 to switch between the first working condition and the second working condition.

As it was previously stated, in this embodiment, hoisting control valve 212 and luffing lift controil valve 222 are in the 3rd work When making state, respective second valve port is connected with respective 4th valve port, is so set and is advantageous in that, is easy under realization Fall operation when, pressure oil is passed through by the second valve port of the two, and realize whereabouts repairing function, to prevent in dropping process There is emptying phenomenon in the rod chamber 221 of fall mouthful D and the amplitude oil cylinder 221 of hoist motor 211, and then can further reduce whereabouts The risk of stall.

In addition, it is necessary to explanation is, although in order that structure is simpler, control more facilitates, in Fig. 1, elevator liter Drop controls valve 212 using four position three-way valves with control end Y61 and Y62, and luffing lift controil valve 222 is using with control end Four position three-way valves of Y71 and Y72, it is to be understood by those skilled in the art that hoisting control valve 212 and luffing elevating control Valve 222 is not limited thereto, for example, can also use pilot operated valve device, or can also close to realize corresponding work(by several valve groups Energy.

Foregoing fueller of getting on the bus is in device of the execution operation process to execution controlling organization fuel feeding of getting on the bus.In order to Reduce and the problems such as system attonity, impact, low-response or shake occur in many action complex conditions, in this embodiment, with The fueller of getting on the bus of the first valve port connection of first valve port and luffing lift controil valve 222 of hoisting control valve 212 Using multiple pump, wherein both energy transition devices 3 including the embodiment, also (can be with including upper car owner's fueller Including one or more pumps), that is, in this embodiment, energy transition device 3 and upper car owner's fueller are both functioned as The oil sources of car, can be fuel feeding of getting on the bus, and due to setting independently of one another, therefore so that the oil sources independence of controlling organization is performed, Help to improve complex conditions performance.And, relative to only using in energy transition device 3 and upper car owner's fueller One is the situation of fuel feeding of getting on the bus, and this setup of the embodiment can also be reduced to energy transition device 3 and upper The requirement of car owner's fueller, is easy to use energy transition device 3 and/or upper car owner's fuel feeding dress of smaller installed power Put, this helps further to reduce the discharge of pernicious gas, and help further to improve the service life of the grade of prime mover 1.

Wherein, on hoisting control valve 212 the first valve port and luffing lift controil valve 222 the first valve port with The connection implementation of hydraulic control device 3, illustrates in greater detail, herein only when operation energy recycle device is described below First explanation hoisting controls the first valve port of valve 212 and first valve port and upper car owner's fuel feeding of luffing lift controil valve 222 The connection implementation of device.

In this embodiment, the first valve of the first valve port of hoisting control valve 212 and luffing lift controil valve 222 Connected by check valve between mouth and upper car owner's fueller.Specifically, as shown in figure 1, upper car owner's fuel feeding dress of the embodiment Put the first valve of the first valve port and luffing lift controil valve 222 that control valve 212 with hoisting by the first check valve 23 Mouth connection, wherein, the oil inlet of the first check valve 23 is connected with upper car owner's fueller, oil-out and the volume of the first check valve 23 First valve port of the first valve port and luffing lift controil valve 222 of raising lift controil valve 212 is all connected with, so that upper car owner First valve port of the fueller both with hoisting control valve 212 controls valve along from upper car owner's fueller to hoisting The direction unilaterally connected of 212 the first valve port, also fills with the first valve port of luffing lift controil valve 222 along by upper car owner's fuel feeding Put the direction unilaterally connected of the first valve port to luffing lift controil valve 222.The setting is advantageous in that, may further ensure that Upper car owner's fueller be used as get on the bus oil sources when energy transition device 3 independently of one another, prevent hydraulic oil produce be not required to The reverse flow wanted, improves the job stability and reliability of the crane hydraulic control system of the embodiment.

It can be seen that, in this embodiment, first valve port and luffing lift controil valve of valve 212 are controlled by making hoisting 222 the first valve port is connected with upper car owner's fueller so that upper car owner's fueller can be to get on the bus to carry out fuel feeding.

In addition, as shown in Figure 1, in this embodiment, the second valve port of hoisting control valve 212 and luffing lifting are controlled Second valve port of valve processed 222 is also connected by check valve (the second check valve 223 shown in Fig. 1) with fuel tank 7.The setting is caused Along the second valve port by hoisting control valve 212 to fuel tank between second valve port and fuel tank 7 of hoisting control valve 212 Along by luffing lift controil valve between 7 direction unilaterally connected, and second valve port and fuel tank 7 of luffing lift controil valve 222 222 the second valve port controls valve 212 due to being prevented from fluid to the direction unilaterally connected of fuel tank 7 in fuel tank 7 and hoisting And undesirable reverse flow is produced between luffing lift controil valve 222, thus, it is also possible to improve the embodiment crane hydraulic pressure The job stability and reliability of control system.And, as shown in figure 1, in this embodiment, the second check valve 24 and fuel tank 7 Between connection oil circuit on be additionally provided with return filter 25, the return filter 25 is used for the fluid to flowing back to fuel tank 7 via it Filtered, be conducive to improving the purity of fluid in fuel tank 7, and then can further be improved the work of crane hydraulic control system Make reliability.

Operation energy recycle device is used to coordinate with energy transition device 3 realizes operation energy recovery function.At this In embodiment, operation energy recycle device can be reclaimed to the gravitional force in the operation process of elevator whereabouts, again can be to becoming Gravitional force in the operation process of width whereabouts is reclaimed so that achieved by the crane hydraulic control system of the embodiment Operation energy recovery function both includes elevator whereabouts operation energy recovery function, and including luffing whereabouts operation energy regenerating work( Energy.

As shown in figure 1, the operation energy recycle device of the embodiment includes the first accumulator 51, the first accumulation of energy control valve 53 And energy regenerating switching valve 54, wherein：First accumulator 51 is used to store the energy reclaimed in the operation process of whereabouts, and it leads to Cross the first accumulation of energy control valve 53 and the first working hole A can break-make be connected；First accumulation of energy control valve 53 is used as the 3rd break-make and controls dress Put, it is connected between the first accumulator 51 and the first working hole A, for controlling the first accumulator 51 and the first working hole A Break-make；Energy regenerating switching valve 54 be used as energy regenerating switching device, the second valve port that it is connected to switching valve 4 of getting on or off the bus with hold Between row controlling organization, the second valve port of the switching valve 4 that is applied not only to control to get on or off the bus switchably with liter mouth H and an amplitude oil cylinder A connection in 221 rodless cavity, elevator whereabouts operation energy recovery function and luffing whereabouts operation energy are realized to switch Reclaim function, between second valve port and hoist motor control device of the switching valve 4 that is additionally operable to control to get on or off the bus and with luffing oil Break-make between cylinder control device so that the second valve port of switching valve of getting on or off the bus 4 can be by hoist motor control device and volume Raise motor 211 to connect and can be connected with amplitude oil cylinder 221 by amplitude oil cylinder control device, be easy to energy transition device 3 during normal operation of getting on the bus be hoist motor 211 and/or the fuel feeding of amplitude oil cylinder 221.

Specifically, as shown in figure 1, the first accumulation of energy control valve 53 of the embodiment includes the first valve port and the second valve port, the First valve port of one accumulation of energy control valve 53 is connected with the first working hole A, and second valve port and first of the first accumulation of energy control valve 53 stores Energy device 51 is connected；And first accumulation of energy control valve 53 have the first working condition (the left position in corresponding diagram 1) and the second working condition (the right position in corresponding diagram 1), wherein：When the first accumulation of energy control valve 53 is in the first working condition, the first accumulation of energy control valve 53 The first valve port and the second valve port between along the direction unilaterally connected by the first accumulators of working hole A to first 51；When first When accumulation of energy control valve 53 is in the second working condition, the first valve port of the first accumulation of energy control valve 53 is connected with the second valve port.

Valve 53 is controlled by setting the first accumulation of energy, the break-make between the first accumulator 51 and the first working hole A can be controlled, And it is possible to when needing to reclaim the energy of whereabouts operation process, control the first accumulation of energy control valve 53 is in the first work Make state, be easy to the pump motor 31 for the working in motor operating conditions oil return that will get on the bus to be delivered in the first accumulator 51 and carry out recovery and deposit Storage, and because first valve port and the second valve port of the first accumulation of energy control valve 53 are along by the first accumulators of working hole A to first 51 Direction unilaterally connected, therefore, recovery finish after, the hydraulic oil stored in the first accumulator 51 cannot reversely flow out, can Realize the reliable memory to hydraulic energy；And when needing to reuse stored hydraulic energy, then can control the first accumulation of energy control Valve processed 53 switches to the second working condition so that the hydraulic oil being stored in the first accumulator 51 is released, service hoisting pump horse Up to 31 oil absorptive function.

In Fig. 1, first valve port and the second valve port of the first accumulation of energy control valve 53 in the first working condition are by connecting The check valve being connected to therebetween realizes above-mentioned unilaterally connected, but it should be recognized that in other embodiments of the invention, the First valve port of one accumulation of energy control valve 53 can also disconnect with the second valve port in the first working condition, for example, can cause first First valve port and the second valve port of accumulation of energy control valve 53 are turned off in the first working condition or can cause the first accumulation of energy control First valve port of valve processed 53 is connected in the first working condition with the second valve port by the check valve of two reversed arrangements, this In the case of, the first accumulation of energy of control control valve 53 is needing to carry out operation energy regenerating and is needing to reuse reclaimed energy When be in the second working condition and control the first accumulation of energy control valve 53 the first working condition is at other, it is also possible to Realize reliable and stable operation energy recovery function.In addition, the first accumulation of energy control valve 53 shown in Fig. 1 is with control end Y3 Two-position two-way solenoid valve so that can easily control the first accumulation of energy to control valve 53 by controlling whether to be powered to control end Y3 Switched between the first working condition and the second working condition, it is to be understood by those skilled in the art that the first accumulation of energy control Valve processed 53 is not limited to the specific constructive form.

As shown in figure 1, the energy regenerating switching valve 54 of the embodiment is the three-position four-way valve with control end Y51 and Y52, It includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, wherein：First valve port of energy regenerating switching valve 54 with The second valve port connection of switching valve of getting on or off the bus 4, the second valve port of energy regenerating switching valve 54 is connected with mouth H is risen, and energy regenerating is cut The 3rd valve port of valve 54 and the rodless cavity of amplitude oil cylinder 221 are changed along by the second valve port to the side of the rodless cavity of amplitude oil cylinder 221 To unilaterally connected, and the 4th valve port of energy regenerating switching valve 54 then with hoist motor control device and amplitude oil cylinder control device Connection.And, there is energy regenerating switching valve 54 first valve position (being right position in Fig. 1), the second valve position (to be in Fig. 1 Left position) and the 3rd valve position (being middle position in Fig. 1), wherein：When energy regenerating switching valve 54 is in the first valve position, energy is returned Receive switching valve 54 and work in the first working condition, its first valve port is connected with the second valve port and the 3rd valve port and the 4th valve port cut Only；When energy regenerating switching valve 54 is in the second valve position, energy regenerating switching valve 54 works in the second working condition, and it first Valve port is connected with the 3rd valve port and the second valve port and the 4th valve port are turned off；When energy regenerating switching valve 54 is in the 3rd valve position When, energy regenerating switching valve 54 works in the 3rd working condition, and its first valve port is connected and the second valve port and with the 4th valve port Three valve ports are turned off.

Based on the energy regenerating switching valve 54, when needing that the gravitional force in the operation process of elevator whereabouts is reclaimed When, energy regenerating switching valve 54 can be controlled to switch to the first valve position, it is easy in the operation process of elevator whereabouts from liter mouth H outflows Hydraulic oil via the energy regenerating switching valve 54 get on or off the bus switching valve 4 of the flow direction in the second working condition, and can finally exist Work under the driving effect of the pump motor 31 under motor operating conditions, flow into the first accumulator 51, realize elevator whereabouts operation energy Amount reclaims function；And when needing to reclaim the gravitional force in the operation process of luffing whereabouts, then energy can be controlled to return Receive switching valve 54 and switch to the second valve position, be easy to the hydraulic pressure flowed out from the rodless cavity of amplitude oil cylinder 221 in the operation process of luffing whereabouts Oil via the energy regenerating switching valve 54 get on or off the bus switching valve 4 of the flow direction in the second working condition, and can finally work In the first accumulator 51 under the driving effect of the pump motor 31 under motor operating conditions, is flowed into, realize that operation energy in luffing whereabouts is returned Receive function；Also, when normal operation of getting on the bus, need not get on the bus energy regenerating when, can control at energy regenerating switching valve 54 In the 3rd valve position, it is easy to the pump motor 31 for working in pump condition to drive hydraulic oil to be cut via in getting on or off the bus for the second working condition Change valve 4 and the energy regenerating switching valve 54 flows to hoist motor control device and amplitude oil cylinder control device, and then realization is got on the bus Normal operation oil supply function.

In this embodiment, as shown in figure 1, the 3rd valve port of energy regenerating switching valve 54 and amplitude oil cylinder 221 have bar The above-mentioned unilaterally connected in chamber is realized by luffing balanced valve 2231.Specifically, the 3rd valve port of energy regenerating switching valve 54 with The first valve port connection of luffing balanced valve 2231, so as to when luffing balanced valve 231 is in the first working condition, energy can be made The 3rd valve port of switching valve 54 and the rodless cavity of amplitude oil cylinder 221 are reclaimed along by the second valve port to the rodless cavity of amplitude oil cylinder 221 Direction unilaterally connected.So set and be advantageous in that, not only job security is higher, and be also convenient for realizing luffing whereabouts The starting stage of energy recovery process, weight-drop speed is adjusted using luffing balanced valve 2231.

In addition, as shown in figure 1, the connection of the above-mentioned valve port of energy regenerating switching valve 54 the 4th and hoist motor control device, The 4th valve port of energy regenerating switching valve 54 and the company of the first valve port of hoisting control valve 212 are specially in this embodiment Connect, and the connection of the above-mentioned valve port of energy regenerating switching valve 54 the 4th and luffing controller for motor, it is then specific in this embodiment It is the connection of the first valve port of the 4th valve port and luffing lift controil valve 222 of energy regenerating switching valve 54.Based on this, getting on the bus During normal operation, energy transition device 3 can control valve 212 together with upper car owner's fueller by hoisting It is the fuel feeding of amplitude oil cylinder 221 for the fuel feeding of hoist motor 211 and/or to pass through luffing lift controil valve 221 together.And, can by Fig. 1 Know, in this embodiment, the valve port of energy regenerating switching valve 54 the 4th controls the valve port of valve 212 first and luffing lifting with hoisting The 3rd check valve 56 is additionally provided with connection oil circuit between the control valve port of valve 222 first.With the foregoing setting class of the first check valve 23 As, the 3rd check valve 56 is set, can further ensure upper car owner's fueller be used as get on the bus oil sources when hydraulic pressure Energy conversion device 3 is independent of one another.And the first check valve 23 and the 3rd check valve 56 are set simultaneously, car owner's fuel feeding can be prevented Device flows with the hydraulic oil for being provided in energy transition device 3 to another, it is ensured that the two liquid for being supplied Force feed flows as expected so that crane hydraulic control system can more reliablely and stablely work.

It can be seen that, it is communicated in the second valve port of switching valve 54 of getting on or off the bus and performs the energy regenerating switching between controlling organization Valve 54, is switched by controlling its between three valves position, be not only convenient for switching realize elevator whereabouts operation energy recovery function with Luffing whereabouts operation energy recovery function, is also convenient for energy transition device 3 and realizes normal operation oil supply function of getting on the bus.

In order to easily control energy regenerating switching valve 54 to be switched between three valve positions, as shown in figure 1, the implementation The energy regenerating switching valve 54 of example has two control ends a Y51 and Y52, and at least one of two control ends Y51 and Y52 can Electrically connected with controller 9, control the energy regenerating switching valve 54 to be switched between three valve positions by controller 9.

In addition, as shown in figure 1, in this embodiment, operation energy recycle device also includes pressure-detecting device 55 of getting on the bus With the first energy-storage pressure detection means 52.

Wherein, pressure-detecting device 55 of getting on the bus is used to detect the pressure for performing controlling organization.Specifically, as shown in Figure 1, should The pressure-detecting device 55 of getting on the bus of embodiment is arranged at the of the second valve port of switching valve 4 of getting on or off the bus and energy regenerating switching valve 54 On connection oil circuit between one valve port, so it is easy to the pressure-detecting device 55 of getting on the bus to be detected in whereabouts operation process of getting on the bus and holds The pressure of row controlling organization, enabling judge whether to need to carry out operation energy regenerating according to the pressure for performing controlling organization Function, it is accurate and convenient；And, the pressure-detecting device 55 of getting on the bus of the embodiment is electrically connected with controller 9, and this causes that this is got on the bus Pressure-detecting device 55 can in time by the pressure feedback of detected execution controlling organization to controller 9, consequently facilitating Controller 9 controls each hydraulic valve and pump motor 31 of crane hydraulic control system etc. when needing to carry out operation energy regenerating In required working condition.

First energy-storage pressure detection means 52 is used to detect the pressure of the first accumulator 51.Specifically, as shown in Figure 1, should First energy-storage pressure detection means 52 of embodiment is arranged at the connection between the first accumulator 51 and the first accumulation of energy control valve 53 On oil circuit, in being so easy to the first energy-storage pressure detection means 52 to detect the first accumulator 51 in operation energy recovery process Pressure so that the pressure in the first accumulator 51 controls the first working hole A and the first accumulator 51 to break after reaching setting value Open, improve the security of operation energy recovery process；And, the first energy-storage pressure detection means 52 of the embodiment also with control Device 9 is electrically connected so that controller 9 can conveniently and accurately control each hydraulic valve and pump according to the pressure of the first accumulator 51 The grade of motor 31 is in required working condition.

Traveling energy recycle device is used to coordinate with energy transition device 3 realizes traveling energy recovery function.Such as Fig. 1 Shown, in this embodiment, traveling energy recycle device includes that the second accumulator 61, the second accumulation of energy control valve 63 and second store Energy pressure-detecting device 62, wherein：Second accumulator 61 is used to store the energy reclaimed in traveling braking procedure, and it passes through the Two accumulation of energys control valve 63 and the second working hole B can break-make be connected；Second accumulation of energy control valve 63 is used as the 4th on-off control device, its It is connected between the second accumulator 61 and the second working hole B, the break-make for controlling the second accumulator 61 and the second working hole B； Second energy-storage pressure detection means 62 is used to detect the pressure of the second accumulator 61.

Specifically, as shown in figure 1, the second accumulation of energy control valve 63 of the embodiment includes the first valve port and the second valve port, the First valve port of two accumulation of energys control valve 63 is connected with the second working hole B, and second valve port and second of the second accumulation of energy control valve 63 stores Energy device 61 is connected；And second accumulation of energy control valve 63 have the first working condition (the left position in corresponding diagram 1) and the second working condition (the right position in corresponding diagram 1), wherein：When the second accumulation of energy control valve 63 is in the first working condition, the second accumulation of energy control valve 63 The first valve port and the second valve port disconnect；When the second accumulation of energy control valve 63 is in the second working condition, the second accumulation of energy control valve 63 the first valve port is connected with the second valve port.

Valve 63 is controlled by setting second accumulation of energy, can be controlled logical between the second accumulator 61 and the second working hole B Disconnected, and it is possible to when needing to reclaim the energy of travelling brake process, control the second accumulation of energy control valve 63 switches to the Two working conditions, be easy to work in the pump motor 31 of pump condition under the driving of prime mover 1 output hydraulic pressure oil to the second accumulator Carry out recovery storage in 61, and after reclaiming and finishing, the second accumulation of energy can be controlled to control valve 63 to switch to the first working condition, prevent Hydraulic oil enters back into the second accumulator 61, is also prevented from the hydraulic oil outflow stored in the second accumulator 61, and working as needs again When utilizing stored hydraulic energy, then the second accumulation of energy is controlled to control valve 63 to switch to the second working condition so as to be stored in second Hydraulic oil in accumulator 61 can flow to the pump motor 31 for working in motor operating conditions via the second accumulation of energy control valve 63, export machine The starting of tool energy auxiliary hoist or climbing etc..

More specifically, as shown in Figure 1, in this embodiment, the second accumulation of energy control valve 63 in the first working condition First valve port and the second valve port are realized disconnecting by two check valves of reversed arrangement, it is to be understood by those skilled in the art that In fact, can also be set in the first working condition with the second valve port by the way that the second accumulation of energy to be controlled the first valve port of valve 63 Disconnection shape of the first valve port and the second valve port to realize the second accumulation of energy control valve 63 for directly ending in the first working condition State；And, the control end Y4 of the second accumulation of energy control valve 63 of the embodiment is electrically connected with controller 9, and this enables controller 9 The second accumulation of energy is easily controlled to control valve 63 to be switched between the first working condition and the second working condition.

Second energy-storage pressure detection means 62 is used to detect the pressure of the second accumulator 61.Specifically, as shown in Figure 1, should Second energy-storage pressure detection means 62 of embodiment is arranged at the connection between the second accumulator 61 and the second accumulation of energy control valve 63 On oil circuit, in being so easy to the second energy-storage pressure detection means 62 to detect the second accumulator 61 in traveling energy recovery process Pressure, be easy to the pressure in the second accumulator 61 to control the second working hole B and the second accumulator 61 to break after reaching setting value Open, improve the security of traveling energy recovery process；And, the second energy-storage pressure detection means 62 of the embodiment also with control Device 9 is electrically connected so that controller 9 can conveniently and accurately control each hydraulic valve and pump according to the pressure of the second accumulator 61 The grade of motor 31 is in required working condition.

Based on the hydraulic circuit shown in Fig. 1, the operation principle of the embodiment crane hydraulic control system is as follows：

(1) during normally travel of getting off, the control clutch 81 of clutch controller 82 is off, now hydraulic energy Amount conversion equipment 3 is in power off state with prime mover 1, and energy transition device 3 does not work, and prime mover 1 drives lifting Machine normally travel.In this process, can be according to the foot brake pedal position of crane, gearbox-gear and the second accumulation of energy pressure The pressure and other parameters of the second accumulator 61 detected by force checking device 62, judge whether to carry out travelling brake kinetic energy Reclaim, if can be with startup traveling energy recovery function.

(2) when needing to realize traveling energy recovery function, then the control end Y10 to clutch controller 82 is powered, Control clutch 81 switches to engagement state, energy transition device 3 is switched to power connector state with prime mover 1, makes The traveling inertia energy (mechanical energy) for obtaining the generations such as prime mover 1 and speed changer can input to pump motor 31, this variations per hour control The control pump motor 31 of mechanism processed 331 is in pump condition, and to the control end Y4 energizations of the second accumulation of energy control valve 63, control second stores Valve 63 can be controlled to switch to the second working condition, then passed through by the after fluid can be pumped out and pressurizeed by pump motor 31 from fuel tank 7 Two working hole B and the second accumulation of energy control valve 63 are exported into the second accumulator 61 so that the mechanical energy during travelling brake turns Turn to hydraulic energy to be stored in the second accumulator 61, realize traveling energy recovery function.In this process, auxiliary pump 32 is also driven Start building to make, repairing carried out to the first working hole A, its pressure oil that is pumped out from fuel tank 7 via its oil-out and the first work Make the connection oil circuit between mouth A to flow at the first working hole A, by pump horse together with the fluid pumped out from fuel tank 7 with pump motor 31 It is delivered in the second accumulator 61 after up to 31 pressurizations.

In above-mentioned traveling energy recovery process, it is possible to use the real-time detection of the second energy-storage pressure detection means 62 second stores Pressure that can be in device 61, and after detecting the pressure in the second accumulator 61 and reaching certain threshold value, the second accumulation of energy control of control Valve processed 63 switches to the first working condition so that pressure oil is no longer flow into the second accumulator 61, improves traveling energy regenerating mistake The security of journey.

Above-mentioned reclaimed travelling brake energy, when needed (such as during crane startup next time), can be subject to again Utilize：Control pump motor 31 switches to motor operating conditions, and control end Y4 and check valve control valve to the second accumulation of energy control valve 63 331 control end Y1 break-makes, control the second accumulation of energy control valve 63 switches to the second working condition and control hydraulically-controlled one-way valve 33 pairs To opening, clutch 81 is now set to work, then hydraulic oil stored in the second accumulator 61 can be controlled via the second accumulation of energy Valve 63 and pump motor 31 and hydraulic control one-way valve 33 are back to fuel tank 7, so that hydraulic energy stored by the second accumulator 61 can be by Discharge and drive power transmission shaft to rotate, the mechanical energy for being exported can be started to walk or be climbed with auxiliary hoist.In this process, auxiliary pump 32 equally by driving work, and its hydraulic oil pumped out from fuel tank 7 flows to the second work via its oil-out and repairing check valve 341 Make mouth B, realize the repairing to the second working hole B, can so cause that the exergonic process is more steady efficient, and contribute into one The service life of step extension pump motor 31, because at the end of exoergic, the pressure oil in the first accumulator 61 stops outflow, i.e., Make now to cut off clutch 81, but pump motor 31 in the presence of motional inertia still can maintenance rotation so that the second work The fluid made in the connection oil circuit between mouth B and the second energy-storage pressure control valve 63 can be back to fuel tank 7 through pump motor 31 rapidly, If being now supplemented in the second working hole B without fluid, pump motor 31 can be caused to produce and to be emptied cavitation erosion, influence making for pump motor 31 With life-span and the stationarity of exergonic process.

(3) get on the bus normal operation when, upper car owner's fueller and energy transition device 3 both function as oil sources of getting on the bus, to Perform controlling organization fuel feeding.Wherein, the hydraulic oil that upper car owner's fueller is supplied is exported to execution by the first check valve 23 Controlling organization.And to realize the normal operation oil supply function of getting on the bus of energy transition device 3, then in normal operation process of getting on the bus In, control clutch 81 is in engagement state and adjusts pump motor 31 and is in pump condition, and to the control end of switching valve 4 of getting on or off the bus Y2 is powered, and the switching valve 4 that makes to get on or off the bus switches to the second valve position, and the control end Y1 and energy of now check valve control valve 331 are returned The control end equal no power of Y51 and Y52 of switching valve 54 is received, control hydraulic control one-way valve 33 can only be opened unidirectionally and energy regenerating switches Valve 54 is in the 3rd valve position (middle position), so that energy transition device 3 can be to oil under the driving effect of prime mover 1 Liquid is pressurizeed and is driven the pressure oil from the second working hole B outflows via switching valve 4 and the energy regenerating switching valve 54 of getting on or off the bus Flow into execution controlling organization, realize the fuel feeding to getting on the bus.In this process, pump motor 31 and auxiliary pump 32 are from the pump of fuel tank 7 Oil, and connection oil circuit flow direction of the pressure oil that is pumped out of auxiliary pump 32 between the oil-out of auxiliary pump 32 and the first working hole A First working hole A, together with the fluid pumped out from fuel tank 7 with pump motor 31 by after the pressurization of pump motor 31 from second Working hole B flows out to execution controlling organization.

By taking winding lifting operation process as an example, the control end Y62 of now hoisting control valve 212 obtains electric and elevator and balances The obstructed hydraulic oil of control end Y9 of valve 2131 so that hoisting control valve 212 is in the first working condition (upper) and elevator Balanced valve 2131 is in the first working condition (left position), therefore, pressure oil and hydraulic energy that upper car owner's fueller is supplied The pressure oil that amount conversion equipment 3 is supplied can control valve 212 and elevator balanced valve 2131 to flow into elevator horse via hoisting Up to 211 liter mouth H, and fuel tank 7 is back to via the hoisting control check valve 24 of valve 212 and second again from mouthful D that falls so that Hoist motor 211 can drive elevator to rotate forward, and drive weight raising, realize winding lifting operation.

Similarly, in the operation process of elevator whereabouts, the control end Y61 of hoisting control valve 212 is powered and elevator is flat The logical hydraulic oil of control end Y9 of weighing apparatus valve 2131 so that hoisting control valve 212 is in the second working condition (bottom) and elevator Balanced valve 2131 is in the second working condition (right position), therefore, pressure oil and hydraulic energy that upper car owner's fueller is supplied The pressure oil that is supplied of amount conversion equipment 3 can flow into mouthful D that falls of hoist motor 211 via hoisting control valve 212, and from Rise mouth H and be back to fuel tank 7 via elevator balanced valve 2131, the hoisting control check valve 24 of valve 212 and second again so that elevator Motor 211 can drive elevator to invert, and drive weight-drop, realize the operation of elevator whereabouts.

Similarly, in luffing raising operation process, the pressure oil and hydraulic energy that upper car owner's fueller is supplied turn The pressure oil that changing device 3 is supplied can be via the left bit stream of the upper and luffing balanced valve 2231 of luffing lift controil valve 222 The fluid entered in the rodless cavity of amplitude oil cylinder 221, and the rod chamber of amplitude oil cylinder 221 can be via the He of luffing lift controil valve 222 Second check valve 24 is back to fuel tank 7 so that the cylinder rod of amplitude oil cylinder 221 is stretched out, and drives weight raising, realizes that luffing raising is made Industry；And in the operation process of luffing whereabouts, pressure oil and the institute of energy transition device 3 that upper car owner's fueller is supplied The pressure oil of supply also can be via the next rod chamber for flowing into amplitude oil cylinder 221 of luffing lift controil valve 222, and luffing oil Fluid in the rodless cavity of cylinder 221 can be via the right position of luffing balanced valve 2231, the check valve of luffing lift controil valve 222 and second 24 are back to fuel tank 7 so that the cylinder rod of amplitude oil cylinder 221 is retracted, and drive weight to decline, and realize the operation of luffing whereabouts.

During execution whereabouts operation (operation of elevator whereabouts and the operation of luffing whereabouts) of getting on the bus, it is possible to use pressure of getting on the bus The detection of detection means 55 performs the pressure of controlling organization, and judges whether to need to whereabouts operation according to the pressure value for being detected Gravitional force in journey is reclaimed, if desired, then initiating task energy recovery function.

(4) operation energy recovery process is divided into two kinds of situations：

(41) elevator whereabouts operation energy recovery process：In the operation process of elevator whereabouts, if getting on the bus pressure-detecting device 55 detect and need to reclaim the energy in the operation process of elevator whereabouts, then can give the control of energy regenerating switching valve 54 End Y51 is powered, and control energy regenerating switching valve 54 switches to the first valve position (right position), and switching valve of now getting on or off the bus 4 is in second Working condition (right position), elevator balanced valve 2131 is in the first working condition (left position), and the first accumulation of energy control valve 53 is in first Working condition (left position), the obstructed oil in hydraulic control end of hydraulic control one-way valve 33 (is cut by the connection oil circuit of the first working hole A to fuel tank 7 Only), clutch 81 is in engagement state, so, control pump motor 31 switches to motor operating conditions, then from liter in falling process of heavy The hydraulic oil of mouth H outflows i.e. can be under the driving effect of pump motor 31 via energy regenerating switching valve 54, switching valve of getting on or off the bus 4th, during the second working hole B, the first working hole A and the first accumulation of energy control valve 53 flow into the first accumulator 51, the operation of elevator whereabouts is made During the gravitional force that is lost be converted into hydraulic energy and be stored in the first accumulator 51, realize elevator whereabouts operation energy Reclaim function.

In above-mentioned elevator whereabouts operation energy recovery process, weight can be controlled by adjusting the discharge capacity of pump motor 31 Falling speed, weight-drop speed is adjusted due to elevator balanced valve 2131 need not be recycled, therefore, contribute to reduction system Heating, improves systematic function；Furthermore, it is possible to come further with the mechanical energy that the pump motor for working in motor operating conditions 31 is exported Assist prime mover 1 drives upper car owner's fueller work, and control hoisting control valve 212 be in the second working condition (under Position) and elevator balanced valve 2131 is in the first working condition so that upper car owner's fueller in this process can be single through first It is mouthful D repairings that fall to valve 23 and hoisting control valve 212, this can be reduced because mouthful D that falls is emptied cavitation erosion risk, contributed to Extend the service life of hoist motor 211, and be favorably improved the stationarity of the energy process.

In addition, in order to prevent from switching to motor operating conditions by pump condition suddenly because of pump motor 31 and caused by weight fall suddenly, The weight-drop security in elevator whereabouts operation energy recovery process is further improved, horse can also be switched in pump motor 31 Pump motor 31 is first controlled to work in pump condition before up to operating mode so that pump motor 31 can be by making by the second working hole B to liter Build pressure and hold load full of pressure oil in connection oil circuit between mouth H, pump motor 31 is then adjusted again makes it gradually switch to Motor operating conditions, can so prevent because in connection oil circuit not in advance in the second working hole B between rising mouth H it is oil-filled build pressure make Produce moment to rotate at a high speed in the moment that hoist brake is opened into hoist motor 211, cause weight-drop to tremble, influence is fallen Stationarity.

(42) luffing whereabouts operation energy recovery process：When needing that the gravitional force in the operation process of luffing whereabouts is carried out During recovery, energy regenerating switching valve 54 can be controlled to switch to the second valve position (left position), and control at luffing lift controil valve 222 In the 3rd working condition (middle position), with above-mentioned elevator whereabouts operation energy recovery process similarly now, switching valve of getting on or off the bus 4 In the second working condition (right position), the first accumulation of energy control valve 53 is also at the first working condition (left position), hydraulic control one-way valve 33 Hydraulic control end also it is obstructed oil (i.e. by the first working hole A to fuel tank 7 connection oil circuit end), clutch 81 is also at joint shape State, so, control luffing balanced valve 2231 is in the second working condition (right position), and controls pump motor 31 to switch to motor work Condition, the then hydraulic oil for being flowed out from the rodless cavity of amplitude oil cylinder 221 in falling process of heavy can be made in the driving of pump motor 31 Via luffing balanced valve 2231, energy regenerating switching valve 54, switching valve of getting on or off the bus 4, the second working hole B, the first working hole A under And first accumulation of energy control valve 53 flow into the first accumulator 51 in, turned the gravitional force lost in the operation process of luffing whereabouts Turn to hydraulic energy to be stored in the first accumulator 51, realize luffing whereabouts operation energy recovery function.In this process, due to becoming Width lift controil valve 222 is in the 3rd working condition, and its second valve port is connected with the 4th valve port, therefore, it can by second Another oil sources is passed through at valve port to realize the repairing of the rod chamber to amplitude oil cylinder 221, prevents the generation of emptying phenomenon.

For the more steady and more effectively weight-drop speed in control luffing whereabouts operation energy recovery process, becoming The starting stage (2231 right valve ports of luffing balanced valve are not yet opened completely) of width whereabouts operation energy recovery process, can pass through Control the openings of sizes of luffing 2231 right valve ports of balanced valve to adjust weight-drop speed, realize fine motion dropping process, now Pump motor 31 can be controlled to work in motor small displacement operating mode；Afterwards until 2231 right valve ports of luffing balanced valve open it completely Afterwards, then can be by the falling speed that adjusts the discharge capacity of pump motor 31 to control weight.

And, in order to further improve luffing whereabouts operation energy with elevator whereabouts operation energy recovery process similarly Weight-drop security in removal process, it is also possible to control pump motor 31 first to work in pump condition and realize building pressure, then gradually control Pump motor processed 31 switches to motor operating conditions.

It should be noted that in above-mentioned elevator whereabouts operation energy recovery process, and in the operation of above-mentioned luffing whereabouts In energy recovery process, stored via first together with the hydraulic oil that the pressure oil that auxiliary pump 32 is exported is exported with pump motor 31 Valve 53 can be controlled to be stored in flowing into the first accumulator 51；Also, the first energy-storage pressure detection means 52 is to the first accumulation of energy Pressure in device 51 is detected that the pressure in the first energy-storage pressure detection means 52 detects the first accumulator 51 reaches one After determining threshold value, can be powered to the control end Y1 of check valve control valve 331 so that hydraulic control one-way valve 33 is double because of the logical oil in hydraulic control end To opening, so that the hydraulic oil that pump motor 31 and auxiliary pump 32 are exported can together flow through hydraulic control one-way valve 33 returns to oil Case 7, carries out off-load.

In addition it is also necessary to explanation, the energy that either above-mentioned elevator whereabouts operation energy recovery process is reclaimed, also It is the energy reclaimed in above-mentioned luffing whereabouts operation energy recovery process, can be again subject to when lower subjob is got on the bus Utilize, need to only control pump motor 31 to work in pump condition, and it is (right to control the first accumulation of energy control valve 53 to switch to the second working condition Position), then under the driving effect of pump motor 31, stored pressure oil can be released in the first accumulator 51, output to the One working hole A, the oil absorbency of service hoisting pump motor 31 prevents pump motor 31 from producing and is emptied so that hydraulic energy converting means It can be preferably the normal operation process fuel feeding got on the bus to put 3.

It can be seen that, based on the crane hydraulic control system shown in Fig. 1, the embodiment can conveniently realize traveling energy and return Function, elevator whereabouts operation energy recovery function and luffing whereabouts operation energy recovery function are received, due to traveling can be caused The gravitional force in kinetic energy and whereabouts operation process in braking procedure is used again, therefore, it can effectively reduction Because these energy be converted into heat energy dissipation fall and caused by energy loss, realize the purpose of energy-saving and emission-reduction.And, the implementation The structure of example crane hydraulic control system is relatively simple, and cost is relatively low, is implemented separately in above three energy recovery function Any one when, only need to control clutch controller 82,54 3 elements of pump motor 31 and energy regenerating switching valve (two ratio Example signal and two switching signals), control process is simpler, and control accuracy is higher.

In the above-described embodiments, the first energy-storage pressure detection means 51, the second energy-storage pressure detection means 52 and pressure of getting on the bus Force checking device 55 can be using structure types such as pressure sensors.In addition, it will be appreciated by those skilled in the art that above-mentioned In embodiment, each hydraulic valve commutated using automatically controlled mode can also actually be commutated using modes such as hydraulic control or Mechanical courses, Similarly, each hydraulic valve for being commutated using hydraulic control mode can also actually be commutated using an electronically or mechanically mode such as control；And And, although each hydraulic valve shown in above-described embodiment use single valve arrangement, each working condition of each hydraulic valve with it is respective Each valve position corresponds, but it should be recognized that each hydraulic valve actually can also be using the combining structure of several valves come real Existing corresponding function, in this case, each working condition of each hydraulic valve is no longer limited to some with some valve Valve position is corresponding, but these modifications should also be as within protection scope of the present invention.

Exemplary embodiment of the invention is the foregoing is only, is not intended to limit the invention, it is all in spirit of the invention Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims

1. a kind of crane hydraulic control system, it is characterised in that including that can drive prime mover (1) of crane running, use Implement the execution controlling organization and described prime mover (1) of operation with power connector in the executing agency of the crane is controlled The energy transition device (3) of state, enforcement energy recycle device and operation energy recycle device, wherein：

The energy transition device (3) is including can switchably work in the pump motor of pump condition and motor operating conditions (31), the pump motor (31) with fuel tank (7) can the first working hole (A) for being connected of break-make and with the execution controlling organization Can break-make connection the second working hole (B)；The enforcement energy recycle device includes can break-make ground with first working hole (A) First accumulator (51) of connection, the operation energy recycle device includes being connected to break-make with second working hole (B) Second accumulator (61)；

The operation energy recycle device coordinates with the energy transition device (3), can perform the executing agency Transform gravitational energy in weight-drop operation process is in hydraulic energy is stored in first accumulator (51), to realize operation energy Amount reclaims function, and now, the pump motor (31) stores in the motor operating conditions, first working hole (A) with described first Can device (51) connection and by first working hole (A) to the fuel tank (7) oil circuit disconnect, second working hole (B) with Execution controlling organization connection simultaneously disconnects with second accumulator (61)；

The traveling energy recycle device coordinates with the energy transition device (3), can brake crane running Mechanical energy in journey is converted into during hydraulic energy is stored in second accumulator (61) and realizes traveling energy recovery function, now, The pump motor (31) connects in the pump condition, first working hole (A) with the fuel tank (7), second work Mouth (B) is connected with second accumulator (61) and disconnected with the execution controlling organization.

2. crane hydraulic control system according to claim 1, it is characterised in that the energy transition device (3) can also be the execution controlling organization supply hydraulic oil, now, the pump when the executing agency normally performs operation Motor (31) is connected in the pump condition, first working hole (A) with the fuel tank (7), second working hole (B) with Execution controlling organization connection simultaneously disconnects with second accumulator (61).

3. crane hydraulic control system according to claim 1 and 2, it is characterised in that the crane hydraulic control System is also included for controlling the first on-off control device of first working hole (A) and the fuel tank (7) break-make and being used for The second on-off control device of second working hole (B) and the execution controlling organization break-make is controlled, the operation energy is returned Receiving apparatus are also included for controlling first accumulator (51) to control dress with the 3rd break-make of the first working hole (A) break-make Put, the traveling energy recycle device also includes logical with second working hole (B) for controlling second accumulator (61) The 4th disconnected on-off control device, wherein：

When the operation energy recovery function is realized, the first on-off control device control is by first working hole (A) Oil circuit to the fuel tank (7) disconnects, and second on-off control device controls second working hole (B) to perform control with described Mechanism connection processed, the 3rd on-off control device controls first working hole (A) to be connected with first accumulator (51), And the 4th on-off control device controls second working hole (B) to be disconnected with second accumulator (61)；

When the traveling energy recovery function is realized, first on-off control device control first working hole (A) with Fuel tank (7) connection, second on-off control device controls second working hole (B) to break with the execution controlling organization Open, and the 4th on-off control device controls second working hole (B) to be connected with second accumulator (61).

4. crane hydraulic control system according to claim 3, it is characterised in that

First on-off control device includes hydraulic control one-way valve (33), the oil inlet and the oil of the hydraulic control one-way valve (33) Case (7) is connected, and the oil-out of the hydraulic control one-way valve (33) is connected with first working hole (A)；And/or,

Second on-off control device includes getting on or off the bus switching valve (4), the switching valve of getting on or off the bus (4) including the first valve port and Second valve port, the first valve port of the switching valve of getting on or off the bus (4) is connected with second working hole (B), the switching of getting on or off the bus Second valve port of valve (4) with it is described execution controlling organization connect, and the switching valve of getting on or off the bus (4) with the first working condition with Second working condition, when the switching valve of getting on or off the bus (4) is in the first working condition, the of the switching valve of getting on or off the bus (4) One valve port and the second valve port disconnect, when the switching valve of getting on or off the bus (4) is in the second working condition, the switching valve of getting on or off the bus (4) the first valve port is connected with the second valve port；And/or,

3rd on-off control device includes that the first accumulation of energy controls valve (53), and first accumulation of energy controls valve (53) including first Valve port and the second valve port, the first valve port of first accumulation of energy control valve (53) are connected with first working hole (A), and described the Second valve port of one accumulation of energy control valve (53) is connected with first accumulator (51), and first accumulation of energy controls valve (53) tool There are the first working condition and the second working condition, it is described when first accumulation of energy controls valve (53) in the first working condition First valve port and the second valve port of the first accumulation of energy control valve (53) disconnect, or, the first of first accumulation of energy control valve (53) Valve port and the second valve port work as institute along the direction unilaterally connected by first working hole (A) to first accumulator (51) When stating the first accumulation of energy control valve (53) in the second working condition, first valve port and second of first accumulation of energy control valve (53) Valve port is connected；And/or,

4th on-off control device includes that the second accumulation of energy controls valve (63), and second accumulation of energy controls valve (63) including first Valve port and the second valve port, the first valve port of second accumulation of energy control valve (63) are connected with second working hole (B), and described the Second valve port of two accumulation of energys control valve (63) is connected with second accumulator (61), and second accumulation of energy controls valve (63) tool There are the first working condition and the second working condition, it is described when second accumulation of energy controls valve (63) in the first working condition First valve port and the second valve port of the second accumulation of energy control valve (63) disconnect, when second accumulation of energy controls valve (63) in the second work When making state, the first valve port of second accumulation of energy control valve (63) is connected with the second valve port.

5. crane hydraulic control system according to claim 4, it is characterised in that

The controlling organization that performs is included for controlling the elevator of the executing agency to perform winding lifting and the operation of elevator whereabouts Winch control mechanism, the winch control mechanism include have rise mouth (H) He Luokou (D) hoist motor (211), it is described on Second valve port of switching valve of getting off (4) is connected with liter mouth (H), and when the winch control mechanism controls the elevator to perform During the elevator weight-drop operation, the second valve port of the switching valve of getting on or off the bus (4) can be connected with liter mouth (H), with Realize elevator whereabouts operation energy recovery function；And/or,

The controlling organization that performs includes the luffing for being used to control the executing agency to perform luffing raising and the operation of luffing whereabouts Controlling organization, the luffing controlling organization includes amplitude oil cylinder (221), the second valve port of the switching valve of getting on or off the bus (4) and institute The rodless cavity connection of amplitude oil cylinder (221) is stated, and is fallen when the luffing controlling organization controls the executing agency to perform luffing During operation, the second valve port of the switching valve of getting on or off the bus (4) can be connected with the rodless cavity of the amplitude oil cylinder (221), with reality Existing luffing whereabouts operation energy recovery function.

6. crane hydraulic control system according to claim 5, it is characterised in that the execution controlling organization includes institute Winch control mechanism and the luffing controlling organization are stated, the operation energy recycle device also includes that being arranged at described getting on or off the bus cuts The energy regenerating switching device changed between the second valve port of valve (4) and the execution controlling organization, the energy regenerating switching dress Put for controlling the second valve port of the switching valve (4) of getting on or off the bus switchably to rise mouth (H) and the amplitude oil cylinder with described (221) one in rodless cavity connection, with switching and realizing the elevator whereabouts operation energy recovery function and the luffing Fall operation energy recovery function.

7. crane hydraulic control system according to claim 6, it is characterised in that the energy regenerating switching device bag Energy regenerating switching valve (54) is included, the energy regenerating switching valve (54) includes the first valve port, the second valve port and the 3rd valve port, institute The first valve port for stating energy regenerating switching valve (54) is connected with the second valve port of the switching valve of getting on or off the bus (4), and the energy is returned The second valve port for receiving switching valve (54) is connected with liter mouth (H), the 3rd valve port of the energy regenerating switching valve (54) and institute The rodless cavity connection of amplitude oil cylinder (221) is stated, and the energy regenerating switching valve (54) is with the first working condition and the second work Make state, when the energy regenerating switching valve (54) is in the first working condition, the of the energy regenerating switching valve (54) One valve port is connected with the second valve port and the 3rd valve port ends, when the energy regenerating switching valve (54) is in the second working condition When, the first valve port of the energy regenerating switching valve (54) is connected with the 3rd valve port and the second valve port ends.

8. crane hydraulic control system according to claim 7, it is characterised in that the energy regenerating switching valve (54) Also include the 4th valve port, the 4th valve port of the energy regenerating switching valve (54) is connected with the execution controlling organization, when described When energy regenerating switching valve (54) is in the first working condition and the second working condition, the of the energy regenerating switching valve (54) Four valve ports are turned off, and the energy regenerating switching valve (54) also has the 3rd working condition, when the energy regenerating switching valve (54) when in three working conditions, the 4th valve port of the energy regenerating switching valve (54) is connected and the second valve with the first valve port Mouth and the 3rd valve port are turned off, so that the energy transition device (3) can also normally perform work in the executing agency It is the execution controlling organization fuel feeding during industry.

9. crane hydraulic control system according to claim 8, it is characterised in that

The winch control mechanism also includes hoist motor control device, and the hoist motor control device is used to control the liter Mouthful (H) and it is described fall mouth (D) in an oil-feed and another is fuel-displaced, the 4th valve port of the energy regenerating switching valve (54) is logical The hoist motor control device is crossed to be connected with the hoist motor (211)；And/or,

The luffing controlling organization also includes amplitude oil cylinder control device, and the amplitude oil cylinder control device is used to control the change An oil-feed in the rod chamber and rodless cavity of width oil cylinder (221) and another is fuel-displaced, the energy regenerating switching valve (54) 4th valve port is connected by the amplitude oil cylinder control device with the amplitude oil cylinder (221).

10. crane hydraulic control system according to claim 9, it is characterised in that

The hoist motor control device includes that hoisting controls valve (212), and the hoisting controls the valve (212) to include the One valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve port and the energy of hoisting control valve (212) Amount reclaims the 4th valve port connection of switching valve (54), and the hoisting controls the second valve port and the fuel tank (7) of valve (212) Connection, the 3rd valve port of hoisting control valve (212) can be connected to break-make with liter mouth (H), the hoisting 4th valve port of control valve (212) with it is described fall mouth (D) connect, the hoisting controls valve (212) to be worked shape with first State and the second working condition, when the hoisting controls valve (212) in the first working condition, the hoisting control First valve port of valve (212) is connected with the 3rd valve port and the second valve port is connected with the 4th valve port, when the hoisting controls valve (212) when in the second working condition, the first valve port of hoisting control valve (212) is connected and second with the 4th valve port Valve port is connected with the 3rd valve port；And/or,

The amplitude oil cylinder control device includes luffing lift controil valve (222), and the luffing lift controil valve (222) includes the One valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve port and the energy of the luffing lift controil valve (222) Amount reclaims the 4th valve port connection of switching valve (54), the second valve port and the fuel tank (7) of the luffing lift controil valve (222) Connection, the 3rd valve port of the luffing lift controil valve (222) can connect to break-make with the rodless cavity of the amplitude oil cylinder (221) Connect, the 4th valve port of the luffing lift controil valve (222) is connected with the rod chamber of the amplitude oil cylinder (221), the luffing Lift controil valve (222) with the first working condition and the second working condition, when the luffing lift controil valve (222) is in During one working condition, the first valve port of the luffing lift controil valve (222) is connected and the second valve port and the 4th with the 3rd valve port Valve port is connected, when the luffing lift controil valve (222) is in the second working condition, the luffing lift controil valve (222) The first valve port connected with the 4th valve port and the second valve port is connected with the 3rd valve port.

11. crane hydraulic control systems according to claim 10, it is characterised in that

The luffing controller for motor also includes luffing balanced valve (2231), and the luffing balanced valve (2231) includes the first valve Mouthful and the second valve port, the 3rd valve of the first valve port of the luffing balanced valve (2231) and the luffing lift controil valve (222) Mouth connection, the rodless cavity connection of amplitude oil cylinder (221) described in the second valve port of the luffing balanced valve (2231), and the luffing Balanced valve (2231) with the first working condition and the second working condition, when the luffing balanced valve (2231) is in the first work During state, first valve port and the second valve port of the luffing balanced valve (2231) are along by the luffing lift controil valve (222) The 3rd valve port to the amplitude oil cylinder (221) rodless cavity direction unilaterally connected, when luffing balanced valve (2231) place When the second working condition, the first valve port of the luffing balanced valve (2231) is connected with the second valve port；

3rd valve port of the energy regenerating switching valve (54) is connected with the first valve port of the luffing balanced valve (2231).

12. crane hydraulic control systems according to claim 10, it is characterised in that the hoisting controls valve (212) the first valve port is also connected with upper car owner's fueller of crane, so that upper car owner's fueller also can be The winch control mechanism fuel feeding；And/or, the first valve port of the luffing lift controil valve (222) is also supplied with the upper car owner Oily device connection, so that upper car owner's fueller also can be the luffing controlling organization fuel feeding.

13. crane hydraulic control systems according to claim 12, it is characterised in that the hoisting controls valve (212) the 4th valve port of the first valve port and the energy regenerating switching valve (54) is along by the energy regenerating switching valve (54) The 4th valve port to hoisting control valve (212) the first valve port direction unilaterally connected, and the hoisting control Controlled along by the main fueller to the hoisting between first valve port and the main fueller of valve (212) processed The direction unilaterally connected of the first valve port of valve (212)；And/or, the first valve port of the luffing lift controil valve (222) with it is described 4th valve port of energy regenerating switching valve (54) is along the 4th valve port by the energy regenerating switching valve (54) to the luffing The direction unilaterally connected of the first valve port of lift controil valve (222), and the first valve port of the luffing lift controil valve (222) with Along by the main fueller to the side of the first valve port of the luffing lift controil valve (222) between the main fueller To unilaterally connected.

14. crane hydraulic control systems according to claim 1, it is characterised in that the crane hydraulic control system System also includes power transmission controller, and the power transmission controller is used to control described prime mover (1) and the hydraulic pressure Switch between power connector state and power off state between energy conversion device (3), wherein, realizing the traveling energy During amount reclaims function and during the operation energy recovery function is realized, the power transmission controller Control to be in power connector state between the energy transition device (3) and described prime mover (1).

15. crane hydraulic control systems according to claim 14, it is characterised in that normally held in the executing agency During row operation, the power transmission controller also controls the energy transition device (3) and described prime mover (1) power connector state is between.

16. crane hydraulic control systems according to claim 1, it is characterised in that the energy transition device (3) auxiliary pump (32) is also included, the oil inlet of the auxiliary pump (32) is connected with the fuel tank (7), the auxiliary pump (32) Oil-out is connected with first working hole (A).

17. crane hydraulic control systems according to claim 16, it is characterised in that the auxiliary pump (32) it is fuel-displaced Mouth is also connected with second working hole (B), and when the pump motor (31) is in the motor operating conditions, the auxiliary pump (32) oil-out can be with second working hole (B) along the oil-out by the auxiliary pump (32) to the described second work The direction unilaterally connected of mouth (B), so that the auxiliary pump (32) can be when the pump motor (31) be in the motor operating conditions It is the pump motor (31) repairing.

18. crane hydraulic control systems according to claim 16, it is characterised in that the device for hydraulically actuating (3) Also include being connected to overflow valve (342), the overflow between the oil-out of the auxiliary pump (32) and second working hole (B) The oil inlet of valve (342) is connected with second working hole (B), the oil-out and the auxiliary pump of the overflow valve (342) (32) oil-out connection.

19. crane hydraulic control systems according to claim 1, it is characterised in that the operation energy recycle device Also include the first energy-storage pressure detection means (52), the first energy-storage pressure detection means (52) is for detecting that described first stores The pressure of energy device (51)；And/or, the traveling energy recycle device also includes the second energy-storage pressure detection means (62), described Second energy-storage pressure detection means (62) is for detecting the pressure of second accumulator (61)；And/or, the operation energy is returned Receiving apparatus also include getting on the bus pressure-detecting device (55), and the pressure-detecting device of getting on the bus (55) described performs control for detecting The pressure of mechanism.

A kind of 20. cranes, including executing agency, it is characterised in that the crane is also included as claim 1-19 is any Described crane hydraulic control system.