CN209411632U - A kind of small connecting lever insulating overhead operating vehicle cantilever crane and its control system - Google Patents

Abstract

The utility model discloses a kind of small connecting lever insulating overhead operating vehicle cantilever crane and its control systems, can realize that platform continuous power supply for a long time provides platform operation control power supply using platform power control loop, solve the problems, such as platform power；Cantilever crane actively makees the turntable master control ratio valve group that control loop is actively made using one group of control cantilever crane, realizes the ratio control that all actives of cantilever crane are made, and all actives make not only can single movement operation, but also can composite move operation；Cantilever crane platform auxiliary movement control loop can control up to eight all auxiliary movements of platform using a piece of proportioning valve in turntable master control ratio valve group；Boom frame telescopic movement uses the simple differential connection mode of shuttle valve, and realizing cantilever crane in the state that throttle is not added can quickly stretch out；Valve group arranged using partition zone optimizing, realize valve group occupy platform own load is small, in insulation arm pipeline lack latus rectum is small, insulation arm drag chain pipeline arrangement simply, pressure loss in piping is small, valve group not easy oil leakage.

Description

A kind of small connecting lever insulating overhead operating vehicle cantilever crane and its control system

Technical field

The utility model relates to a kind of high-altitude operation vehicle cantilever cranes, and in particular to a kind of small connecting lever insulating overhead operating vehicle cantilever crane And its control system, belong to high-altitude operation vehicle technical field.

Background technique

High-altitude operation vehicle is that transport staff and the equipment using equipment to high-altitude contraposition in high-altitude are installed, tieed up Shield, the special vehicle cleaned, and insulating overhead operating vehicle is as a kind of extraordinary high altitude operation for being able to carry out livewire work Vehicle is widely used in the extensive use of the industries such as electric power, telecommunications.During construction operation, when the electric wire of two-wire dispatching is separate Whens there are building or river etc. in road side, the electrification high-altitude operation vehicle of either straight telescopic boom or foldable arm all without Method overhauls it, and especially the construction site of power industry is not able to satisfy the requirement of client in many occasions, because This needs to increase by one section of insulation connecting lever for capableing of horizontal rotation, increases horizontal working area.

Existing insulating overhead operating vehicle is all made of all-hydraulic control system, since insulating overhead operating vehicle movement is more, and Platform is as main operation platform, it is desirable that the everything of get on the bus cantilever crane and platform is intended to carry out operation control by platform, this The defect of hydraulic control mode is: 1), up to ten bigeminy manual multi-path reversing valve groups platform at are installed, it is stupid so as to cause stage+module The hydraulic valve bank of weight, the space occupied is very big, and valve group itself leads to occupy platform compared with big load again；2), respectively act can only for cantilever crane It is manually operated using mechanical handle, the operation ratio performance of movement is poor, is difficult to control；3), the movement of cantilever crane terrace part needs Flow very little, can only control its speed by throttle style, and system is easily generated heat；4), pipeline length, the pressure loss are big in insulation arm, System is easily generated heat, valve group easy oil leakage；5), pipeline is more in arm, part pipeline is thick, and pipeline arrangement is very tired in insulation arm and drag chain It is difficult；6), the individual auxiliary movements of platform such as boom turns round, even if platform valve group mounting arrangements are in the widest installation of workbench Face still can not be arranged any more, can only now be used manual hand manipulation, i.e., again be gone to suspension arm mechanism manually using artificial plug bolt Certain angle does not automatically control operating function, and operation is very inconvenient, and operating efficiency is low；7), the insulation with small connecting lever is high Idle job vehicle, small connecting lever can be only installed between insulation connecting lever and insulating telescopic arm tail end, be grasped using manually plug bolt Make boom swing mechanism, it is difficult to realize operation；8) workbench of small connecting lever insulating overhead operating vehicle retains three working faces, only Allow that valve group and platform lifting mechanism etc. are installed in most narrow one side, just cannot achieve at all using existing all-hydraulic control technology. Therefore, the control of insulation arm high-altitude operation vehicle cantilever crane also can be gradually from all-hydraulic control system to electric-hydraulic proportion intelligence control system side To development；Insulation arm high altitude vehicle will also be solved other than needing to solve the problems, such as at above-mentioned 7 points using electric-hydraulic proportion intelligence control system Certainly platform power problem, and by the way that, to platform power, but storage battery power supply amount is limited, can not in such a way that battery is arranged in platform Meet continuous power supply for a long time, does not lead to not carry out operation for a long time, and manually replace or charge the battery etc. all both very not Just, battery also takes up the biggish load of platform and space, is restricted the load of platform bearer.

Summary of the invention

In order to overcome various deficiencies of the existing technology, the utility model provides a kind of small connecting lever insulating overhead operating vehicle Cantilever crane and its control system, the electro-hydraulic speed proportional intelligent control that all actives of cantilever crane are made, the handling of movement is good, and system It is not easy to generate heat, not easy oil leakage, system cost is low, high reliablity, and valve group occupies that platform own load is small, pipeline leads to less in insulation arm Diameter is small, insulation arm drag chain pipeline arrangement is simple, pressure loss in piping is small, can also be achieved platform continuous power supply for a long time.

To realize above-mentioned purpose of utility model, a kind of small connecting lever insulating overhead operating vehicle cantilever crane control system of the utility model System, including cantilever crane actively make control loop, and cantilever crane includes actively hydraulic pump, turntable master control ratio valve group, turntable as control loop Rotary motor, lower arm lifting cylinder, upper arm lifting cylinder and upper arm telescopic oil cylinder, by each dynamic of turntable master control ratio valve group The accurate control of cantilever crane revolution, lower arm lifting, upper arm lifting and upper arm expanding-contracting action can be achieved in the operation for making control valve；Its feature It is, further includes platform auxiliary movement circuit and platform Generation Control circuit, platform auxiliary movement circuit includes turntable solenoid valve Group, platform solenoid valve block I, platform solenoid valve block II, upper leveling cyclinder, lower leveling cyclinder, connecting lever rotary motor, boom turn round horse It reaches, hoist lift motor, boom luff oil cylinder, platform rotary motor and platform lift cylinders, the speed in turntable master control ratio valve group Control valve is spent as the flow control valve in platform auxiliary movement circuit, and control enters turntable solenoid valve block, platform electromagnetism respectively Valve group I and platform solenoid valve block II respectively act flow, acted by the leveling that each solenoid valve block of operation controls workbench respectively, The revolution movement of connecting lever, the revolution movement of boom and lifting action, the lifting action of hoist, the revolution of platform and lifting action； The hydraulic pump is duplex pump, and the big pump of duplex actively makees control loop for cantilever crane and platform auxiliary movement circuit provides power source, The small pump of duplex provides power source for platform Generation Control circuit, and Generation Control circuit further includes generator control valve group, platform hair Motor, generator motor, generator electric quantity detection apparatus, platform Generation Control circuit generate electricity to platform by electric quantity detection apparatus The detection of electromechanics amount, which is realized, carries out automatic charging and power-off to platform generator.

Further, generator control valve group includes the second overflow valve, flow preferential flow divider valve and generator start and stop commutation Valve, the small pump discharge of duplex are connected with the oil inlet P 1 of generator control valve group, the import E of flow preferential flow divider valve, the second overflow At valve inlet parallel to the oil inlet P 1 of generator control valve group, the outlet F connection generator start and stop of flow preferential flow divider valve are changed To the oil inlet P of valve, the oil return opening R of flow preferential flow divider valve, the oil return opening of the second overflow valve and generator start and stop reversal valve Oil return inlet T is connected in parallel at the oil return inlet T 1 of generator control valve group, and oil return inlet T 1 takes back fuel tank by pipeline；Generator start and stop The outlet A of reversal valve is connected to platform generator motor oil inlet B, and pressure switch is connected to platform generator motor oil inlet oil circuit On, generator motor is power electric generators source.

When insulating overhead operating vehicle product first powers on, generator start and stop reversal valve obtains electric commutation, forces generator system It charges the regular hour, guarantees the reliability of platform electric-control system operation.When generator electric quantity detection apparatus detects power generation electromechanics Pond electricity reaches the electricity range of requirement setting, then illustrates that generator charging battery capacity is full of, and generator start and stop reversal valve is certainly Dynamic circuit breaker electricity, charging terminate, and generator system oil circuit passes through the direct oil return box off-load of generator start and stop reversal valve；If power generation is electromechanical The setting range that amount detecting device detection generator cells quantity of electric charge decrement does not reach requirement, electrical power generators control system can be continuous Work charge until being full of.Flow preferential flow divider valve guarantee no matter the small revolution speed size of duplex, i.e., no matter duplex is small How much is the flow increase of pump output, and generator motor oil inlet flow is no more than the setting value of flow preferential flow divider valve, thus effectively Control generator motor acts within the scope of setting speed, prevents generator overload from damaging.In insulating overhead operating vehicle cantilever crane work During work, when upper arm rises or lower arm rises, the flow for needing to act is big, and system is when executing upper arm liter or lower arm lift operations Chassis meeting automatic oiling door, and generator control circuit is not then actively needed chassis open out to be influenced by cantilever crane.Second overflow Safety valve of the valve as Generation Control circuit guarantees power-generating control system pressure non-overloading.Pressure switch is sent out for detection platform The pressure of electric motor oil inlet oil circuit, when generator is in charging work state, pressure switch output pressure signal to control of getting off System processed is realized by master control system and is controlled the operation that platform respectively acts.

Further, turntable master control ratio valve group includes rotation of rotary table control valve, lower arm lift controil valve, upper arm lifting control Valve, the flexible control valve of upper arm and speed control valve processed, above-mentioned each control valve are automatically controlled proportional hydraulic valve, rotation of rotary table motor tool There are the first working chamber and the second working chamber, the first working chamber of rotation of rotary table motor and the first working oil of rotation of rotary table control valve Mouth A1 connection, the second working chamber of rotation of rotary table motor are connected to the second actuator port B1 of rotation of rotary table control valve；Lower arm liter Dropping oil cylinder has the first working chamber and the second working chamber, the first working chamber of lower arm lifting cylinder by upper arm up and down balance system valve with First actuator port A2 of lower arm lift controil valve is connected to, and the second working chamber is gone up and down by the flat up and down balance system valve of upper arm and lower arm Second actuator port B2 of control valve 302 is connected to；Upper arm lifting cylinder has the first working chamber and the second working chamber, upper arm liter First working chamber of drop oil cylinder is connected to by upper arm up and down balance system valve with the first actuator port A3 of upper arm lift controil valve, the Two working chambers are connected to by the flat up and down balance system valve of upper arm with the second actuator port B2 of upper arm lift controil valve；Upper arm telescopic oil cylinder With the first working chamber and the second working chamber, the first work of the flexible control valve of the first working chamber and upper arm of upper arm telescopic oil cylinder Second working chamber of hydraulic fluid port A4 connection, upper arm telescopic oil cylinder is connected to the second actuator port B4 of the flexible control valve of upper arm；Speed The oil inlet P 11 of first actuator port A5 of control valve and turntable solenoid valve block, the oil inlet P 12 of platform solenoid valve block I and flat The oil inlet P 13 of platform solenoid valve block II is respectively communicated with, the second actuator port B5 of speed control valve and returning for turntable solenoid valve block The oil return inlet T 13 of hydraulic fluid port T11, the oil return inlet T 12 of platform solenoid valve block I and platform solenoid valve block II are respectively communicated with.

The commutation of rotation of rotary table control valve is operated, the first working chamber oil inlet of rotation of rotary table motor is made, the clockwise driving of turntable is whole A cantilever crane is clockwise, the second working chamber oil inlet, and turntable, which reverses, drives entire cantilever crane to reverse；The commutation of lower arm elevating control is operated, is made First working chamber oil inlet of lower arm lifting cylinder, lower arm oil cylinder rise driving lower arm and rise, the second working chamber oil inlet, lower arm oil Cylinder decline driving lower arm decline；Operate the commutation of upper arm lift controil valve, the first working chamber oil inlet of upper arm lifting cylinder, upper arm oil cylinder Rise driving upper arm to rise, the second working chamber oil inlet, the decline driving upper arm decline of upper arm oil cylinder；Operate the flexible control valve of upper arm Commutation, makes the first working chamber oil inlet of upper arm telescopic oil cylinder, and telescopic oil cylinder stretches out driving telescopic arm and stretches out, the second working chamber into Oil, upper arm telescopic oil cylinder retraction driving telescopic arm retraction；Speed control valve and turntable solenoid valve block, platform solenoid valve block I, platform II collective effect of solenoid valve block can realize the selection of different movements and the control of each movement friction speed to the multiple auxiliary movements of platform System；Eight auxiliary movements control that platform can be completed by the biggish valve block of a piece of range of flow, realizes Comparison basis portion Divide the speed proportional demand for control of small flow movement；The commutation position that speed control valve only allows to be fixed therein when working It sets, not reversible switching operation, otherwise easily causes other malfunctions and damage valve group.

Further, it is additionally provided with differential valve group of stretching between upper arm telescopic oil cylinder and the flexible control valve of upper arm, stretched differential Valve group includes flexible balanced valve and shuttle valve, and shuttle valve includes the first oil inlet a, the second oil inlet b and third oil outlet c；Shuttle valve Stretch respectively with upper arm the first actuator port A4 of control valve, flexible balanced valve oil inlet of one oil inlet a is connected to, and shuttle valve third goes out Hydraulic fluid port c is connected to another oil inlet of flexible balanced valve, the second work of shuttle valve the second oil inlet b and the flexible control valve of upper arm Make hydraulic fluid port B4 connection.

When the first working chamber oil inlet of upper arm telescopic oil cylinder, since upper arm stretches, there are areas for oil cylinder rodless cavity and rod chamber Difference, the second oil inlet b of shuttle valve are enclosed obstructed, and the oil liquid of the second working chamber of upper arm telescopic oil cylinder passes sequentially through shuttle valve third Oil outlet c, shuttle valve the first oil inlet a enter back into the first working chamber of upper arm telescopic oil cylinder, thus formed differential connection return Road in the case where not needing chassis power open out in the not increased situation of flow system flow, that is, realizes on automatic accelerate Arm telescopic oil cylinder stretches out speed, and then cantilever crane is driven quickly to stretch out；When upper arm stretches oil cylinder stroke to the end, the pressure of the big pump of duplex Power oil directly flows back to fuel tank by the first overflow valve, plays the role of safeguard protection.

Further, turntable solenoid valve block includes the clockwise overflow valve of connecting lever, connecting lever reverse overflow valve, connecting lever slewing directional control valve Reversal valve is leveled with platform, connecting lever rotary motor has the first working chamber and the second working chamber, and the first working chamber and connecting lever return Turn reversal valve the first actuator port C1 connection, the second working chamber is connected to the second actuator port D1 of connecting lever slewing directional control valve； The oil inlet of the clockwise overflow valve of connecting lever respectively with the first work of the first oil outlet of connecting lever slewing directional control valve and connecting lever rotary motor Make chamber to be connected, connecting lever reverses the oil inlet of overflow valve to turn round horse with the second oil outlet and connecting lever of connecting lever slewing directional control valve respectively It is connected up to the second working chamber, the oil outlet and connecting lever of the clockwise overflow valve of connecting lever reverse the oil outlet of overflow valve to be connected in parallel to turntable electromagnetism The oil return inlet T 11 of valve group；

Platform levels the first actuator port C2 of the first oil inlet connecting platform leveling reversal valve of lower balanced valve, platform tune Second actuator port D2 of the second oil inlet connecting platform leveling reversal valve of flat lower balanced valve；Platform levels the of lower balanced valve One oil outlet is connected to the rodless cavity of lower leveling cyclinder, while the rodless cavity of upper balanced valve and upper leveling cyclinder is leveled by platform Connection, the second oil outlet that platform levels lower balanced valve are connected to the rod chamber of lower leveling cyclinder, while by platform leveling Balanced valve is connected to the rod chamber of upper leveling cyclinder.

When the first working chamber oil inlet of connecting lever rotary motor, connecting lever rotary motor is clockwise, thus drive insulation connecting lever clockwise, When its second working chamber oil inlet, connecting lever rotary motor is reversed, so that insulation connecting lever be driven to reverse；The clockwise overflow valve of connecting lever and connecting lever Reverse overflow valve respectively insulation connecting lever it is clockwise to extreme position and reverse to extreme position and pressure respectively reach it is respective overflow Connecting lever rotary system overflow when flowing valve setting pressure, plays the role of pressure limiting safeguard protection, and then also protect insulation connecting lever.

Instantly leveling cyclinder and when the first working chamber oil inlet of upper leveling cyclinder, is constrained, lower leveling cyclinder is not by jib structure Dynamic, upper leveling cyclinder stretches out driving workbench and leans forward；Instantly leveling cyclinder and when the second working chamber oil inlet of upper leveling cyclinder, together Sample is constrained by jib structure, and lower leveling cyclinder is motionless, and upper leveling cyclinder retracts driving workbench hypsokinesis, can both realize that work was flat The manually leveling of platform, can also be achieved insulating overhead operating vehicle workbench topples over function.

Further, platform solenoid valve block I includes boom slewing directional control valve, boom luff reversal valve and hoist lifting commutation Valve, boom rotary motor have the first working chamber and the second working chamber, the first working chamber of boom rotary motor and the second work Chamber is connected to the first actuator port C3 of boom slewing directional control valve and the second actuator port D3 respectively；Boom luff oil cylinder has the First working chamber of one working chamber and the second working chamber, boom luff oil cylinder passes through arm up and down balance system valve and boom luff reversal valve The first actuator port C4 connection, the second working chamber passes through the second working oil of arm up and down balance system valve and boom luff reversal valve Mouth D4 connection；Boom luff motor has the first working chamber and the second working chamber, the first working chamber of hoist lift motor and the Two working chambers are connected to the first actuator port C5 and the second actuator port D5 of hoist lifting reversal valve respectively.

The clockwise driving boom of boom motor is clockwise when the first working chamber oil inlet of boom rotary motor, the second working chamber into Boom motor reverses driving boom to reverse when oily；When the first working chamber oil inlet of boom luff oil cylinder, boom luff oil cylinder, which stretches out, to be driven Dynamic boom rises, and boom oil cylinder shrinks driving boom decline when the second working chamber oil inlet of boom luff oil cylinder；Hoist motor first When working chamber oil inlet, the clockwise driving hoist of hoist motor rises, and when the second working chamber oil inlet of hoist motor, hoist motor, which reverses, to be driven Dynamic hoist decline.

Further, platform solenoid valve block II includes that platform slewing directional control valve and platform go up and down reversal valve；Platform turns round horse Up to having the first working chamber and the second working chamber, the first working chamber and the second working chamber of platform rotary motor are returned with platform respectively Turn the first actuator port C6 and the second actuator port D6 connection of reversal valve；Platform lifting cylinder has the first working chamber and second Working chamber, the first working chamber of platform lifting cylinder go up and down the first working oil of reversal valve by platform raise-lower hydraulic lock with platform Mouth C connection, the second work that the second working chamber of platform lifting cylinder passes through platform raise-lower hydraulic lock and platform lifting reversal valve Hydraulic fluid port D7 connection.

When the first working chamber oil inlet of platform rotary motor, the clockwise driving workbench of platform rotary motor is clockwise, platform When the second working chamber oil inlet of rotary motor, platform rotary motor reverses driving workbench to reverse；Platform lifting cylinder first When working chamber oil inlet, platform lifting cylinder stretches out driving workbench and rises, and when the second working chamber oil inlet of platform lifting cylinder, puts down Platform lifting cylinder retracts driving workbench decline.

Further, platform solenoid valve block II further includes hydraulic interface reversal valve, the first work of hydraulic interface reversal valve Hydraulic fluid port C8 is connected to the oil inlet of hydraulic tool interface, and the second actuator port D8 is connected to the oil return opening of hydraulic tool interface. Hydraulic power is arranged without another in power source interface of the hydraulic tool interface as external hydraulic tool.

This control system can both realize the single movement or the electric-hydraulic proportion intelligence for realizing composite move that cantilever crane is respectively actively made It can control；Boom frame telescopic can make system that can also quickly stretch out in the state that throttle is not added using simple Differential Control mode Cantilever crane movement, energy conservation and environmental protection；Platform auxiliary movement control loop passes through master control ratio valve group a piece of proportioning valve therein and three Solenoid valve block is applied in combination, and arranges the partition zone optimizing of solenoid valve block, while by the pipeline number in insulation arm drag chain into platform Amount greatly reduces, and the pipeline that cantilever crane is actively made, slightly not into insulation arm, hose latus rectum is greatly reduced, the self weight of platform valve group It substantially reduces, and the speed of all auxiliary movements of platform is realized with lower cost and acts the intelligent control of selection.

A kind of small connecting lever insulating overhead operating vehicle cantilever crane, including turntable, workbench, insulation upper arm, insulation lower arm, lower arm Insulated pull rod, insulating telescopic arm, insulation connecting lever and boom, hinged at the top of lower arm insulated pull rod one end and turntable, the other end and absolutely Edge lower arm is hinged, and insulation lower arm is connected by lower arm lifting cylinder with turntable, and insulation upper arm one end is cut with scissors by upper arm lifting cylinder It connects in one end of lower arm insulated pull rod, the other end is connected by the connecting lever that insulate with workbench, is equipped with extension of upper limb in insulation upper arm Contracting oil cylinder drives the flexible of insulating telescopic arm, and the both ends for the upper arm that insulate are respectively equipped with lower leveling cyclinder and upper leveling cyclinder for work Make the leveling control of platform；It is characterized in that, one end of insulation connecting lever is hinged on the side of workbench by platform rotary motor The other end in face, the connecting lever that insulate is hinged by connecting lever rotary motor and boom, and boom upper end is equipped with boom rotary motor, boom Side boom luff oil cylinder is installed, the other side of boom is equipped with hoist lift motor.

Further, generator control valve group is arranged in vehicle out-of-the-car position；Turntable master control ratio valve group and turntable electromagnetism Valve group is arranged at cantilever crane turntable；The platform solenoid valve block I of control boom movement is located at workbench without relative motion On the outside of workbench bracket on crossbeam；The platform solenoid valve block of control platform revolution, platform lifting and three groups of movements of hydraulic interface II is located at workbench carriage inner lateral crossbeam.

This laying mode cause platform solenoid valve block I can not by workbench lifting movement to it into the pipeline of cantilever crane Influence, and platform solenoid valve block II reduces the pipeline into workbench valve group, and reducing workbench, there are relative motions Influence to platform valve group pipeline, piping connection is compact reliably, is artistically decorated.

Preferably, platform solenoid valve block I and platform solenoid valve block II use two groups of identical valve groups, and each solenoid valve is equal The four latus rectum solenoid directional control valves made of aluminum material.Under the premise of meeting each auxiliary movement flow of platform, both substantially reduced Valve group self weight, the insulating overhead operating vehicle of all-hydraulic control system, valve group self weight are greatly lowered compared with the prior art；In addition The volume of valve group is substantially reduced again, and valve group arrangement space also greatly reduces.

The utility model can realize that platform continuous power supply for a long time provides platform operation control using platform power control loop Power supply processed, solves the problems, such as platform power；Cantilever crane actively makees the turntable master control that control loop is actively made using one group of control cantilever crane Ratio valve group, realizes the ratio control that all actives of cantilever crane are made, and all actives make not only can single movement operation, but also can be compound Motion action, solves the electro-hydraulic speed proportional intelligent control that all actives of cantilever crane are made, and the handling of movement is good；Cantilever crane platform Auxiliary movement control loop combines turntable solenoid valve block, platform electricity using a piece of proportioning valve in turntable master control ratio valve group Magnet valve group I and platform solenoid valve block II can control up to eight all auxiliary movements of platform, and it is dynamic to realize all auxiliary of platform The electric ratio intelligent operation of work controls, and solves the problems, such as that the small flow speed in cantilever crane part is uncontrollable, and system is not easy to generate heat, be not easy Oil leak, system cost is low, high reliablity；Valve group arranges that platform solenoid valve block I and platform solenoid valve block II are adopted using partition zone optimizing Small in size, light-weight with the board-like valve group of small latus rectum, subregion is arranged in the relatively narrow working face cradle of workbench, cantilever crane master Movement pipeline does not enter in insulation arm drag chain, and platform auxiliary movement pipeline only has the oil inlet and oil return pipeline of platform solenoid valve block, leveling Pipeline, connecting lever pipeline and generator oil inlet and oil return pipeline enter in insulation arm drag chain, and occupying valve group, platform own load is small, insulate Pipeline lacks that latus rectum is small, insulation arm drag chain pipeline arrangement is simple, pressure loss in piping is small, valve group not easy oil leakage in arm；Boom frame telescopic Movement uses the simple differential connection mode of shuttle valve, and realizing cantilever crane in the state that throttle is not added can quickly stretch out.

Detailed description of the invention

Fig. 1 is the small connecting lever insulating overhead operating vehicle jib structure schematic diagram of the utility model；

Fig. 2 is the utility model insulation connecting lever and boom structure schematic diagram；

Fig. 3 is the utility model platform and insulation connecting lever top view；

Fig. 4 is the small connecting lever insulating overhead operating vehicle arm support control system figure of the utility model；

Fig. 5 is the platform generator control valve group concrete structure schematic diagram in Fig. 4；

Fig. 6 is the cantilever crane master control ratio valve group structural schematic diagram in Fig. 4；

Fig. 7 is the differential valve group structural schematic diagram that stretches in Fig. 4；

Fig. 8 is that the connecting lever in Fig. 4 levels valve block structure schematic diagram；

Fig. 9 is the boom valve block structure schematic diagram in Fig. 4；

Figure 10 is the lifting valve group structural schematic diagram in Fig. 4；

Figure 11 is valve group arragement construction schematic diagram at the utility model turntable；

In figure: 1, turntable；2, lower arm insulated pull rod；3, lower arm lifting cylinder；4, insulate lower arm；5, upper arm lifting cylinder； 6, insulate upper arm；7 insulating telescopic arms；8, workbench；9, insulate connecting lever；The big pump of 10-1 duplex；The small pump of 10-2 duplex；11, One overflow valve；12, rotation of rotary table motor；13, lower arm up and down balance system valve；14, upper arm up and down balance system valve；15, stretch different valve Group；151, stretch balanced valve；152, shuttle valve；16, upper arm telescopic oil cylinder；17, connecting lever rotary motor；18, the lower balance of platform leveling Valve；19, platform levels upper balanced valve；20, platform Generation Control valve group；201 second overflow valves；202 preferential flow divider valves；203 hairs Electric motor reversal valve；21, lower leveling cyclinder；22, upper leveling cyclinder；23, boom rotary motor；24, hoist lift motor； 25, boom luff balanced valve；26, boom luff oil cylinder；27, platform rotary motor；28, platform raise-lower hydraulic is locked；29, platform Lifting cylinder；30, turntable master control ratio valve group；301, rotation of rotary table control valve；302, lower arm lift controil valve；303, upper arm Lift controil valve；304, the flexible control valve of upper arm；305, speed control valve；31, hydraulic tool interface；32, platform generator control Motor processed；33, platform generator；34, pressure switch；40, turntable solenoid valve block；401, the clockwise overflow valve of connecting lever；402, connecting lever Reverse overflow valve；403, connecting lever slewing directional control valve；404, platform levels reversal valve；50, platform solenoid valve block I；501, boom returns Turn reversal valve；502, boom luff reversal valve；503, hoist goes up and down reversal valve；60, platform solenoid valve block II；601, platform turns round Reversal valve；602, platform goes up and down reversal valve；603, hydraulic interface reversal valve.

Specific embodiment

The utility model is described in detail in the following with reference to the drawings and specific embodiments.

As shown in figure 4, a kind of small connecting lever insulating overhead operating vehicle arm support control system, including the main action control of cantilever crane return Road, cantilever crane include actively hydraulic pump, turntable master control ratio valve group 30, rotation of rotary table motor 12, lower arm lifting oil as control loop Cylinder 3, upper arm lifting cylinder 5 and upper arm telescopic oil cylinder 16 pass through the behaviour of each operated control valve to turntable master control ratio valve group 30 Make the accurate control of achievable cantilever crane revolution, lower arm lifting, upper arm lifting and upper arm expanding-contracting action；It is characterized in that, further including Platform auxiliary movement circuit and platform Generation Control circuit, platform auxiliary movement circuit include turntable solenoid valve block 40, platform electricity Magnet valve group I 50, platform solenoid valve block II 60, upper leveling cyclinder 22, lower leveling cyclinder 21, connecting lever rotary motor 17, boom revolution Motor 23, hoist lift motor 24, boom luff oil cylinder 26, platform rotary motor 27 and platform lifting cylinder 29, turntable master control As the flow control valve in platform auxiliary movement circuit, control enters respectively turns speed control valve 305 in ratio valve group 30 Platform solenoid valve block 40, platform solenoid valve block I 50 and platform solenoid valve block II 60 respectively act flow, pass through and operate each solenoid valve component Not Kong Zhi the leveling movement of workbench, the revolution movement of connecting lever, the revolution movement of boom and lifting action, the lifting of hoist it is dynamic Work, the revolution of platform and lifting action；The hydraulic pump be duplex pump, the big pump 10-1 of duplex be cantilever crane actively make control loop with Platform auxiliary movement circuit provides power source, and the small pump 10-2 of duplex provides power source, Generation Control for platform Generation Control circuit Circuit further includes generator control valve group 20, platform generator 33, generator motor 32, generator electric quantity detection apparatus, platform The detection of 33 electricity of platform generator is realized by electric quantity detection apparatus, platform generator 33 is carried out certainly in Generation Control circuit Dynamic charging and power-off.

As shown in Figure 4 and Figure 5, generator control valve group includes the second overflow valve 201, flow preferential flow divider valve 202 and hair Motor start and stop reversal valve 203, the small outlet pump 10-2 of duplex are connected with the oil inlet P 1 of generator control valve group 20, and flow preferentially divides At the import E of stream valve 202, the oil inlet P 1 of 201 inlet parallel of the second overflow valve to generator control valve group 20, flow preferentially divides Flow the oil inlet P of the outlet F connection generator start and stop reversal valve 203 of valve 202, the oil return opening R of flow preferential flow divider valve 202, the The oil return opening of two overflow valves 201 and the oil return inlet T of generator start and stop reversal valve 203 are connected in parallel to returning for generator control valve group 20 At hydraulic fluid port T1, oil return inlet T 1 takes back fuel tank by pipeline；The outlet A and platform generator motor of generator start and stop reversal valve 203 32 oil inlet B connection, pressure switch 34 are connected on 32 oil inlet oil circuit of platform generator motor, and generator motor 32 is generator 33 provide power source.

When insulating overhead operating vehicle product first powers on, generator start and stop reversal valve 203 obtains electric commutation, forces generator system The system charging regular hour, guarantee the reliability of platform electric-control system operation.When generator electric quantity detection apparatus detects generator 33 battery capacities reach the electricity range of requirement setting, then illustrate that generator charging battery capacity is full of, generator start and stop commutation Valve 203 automatically powers off, and charging terminates, and generator system oil circuit passes through the direct oil return box off-load of generator start and stop reversal valve 203；Such as Fruit generator electric quantity detection apparatus 24 detects 33 battery capacity of generator and loses the setting range not reached requirement, electrical power generators Control system meeting continuous work charge until being full of.Flow preferential flow divider valve 202 guarantee no matter the small pump 10-2 of duplex Revolving speed size, i.e., no matter duplex it is small pump 10-2 output flow increase how much, 32 oil inlet flow of generator motor be no more than flow The setting value of preferential flow divider valve 202 prevents from generating electricity so that effectively control generator motor 32 acts within the scope of setting speed The overload damage of machine 33.In the insulating overhead operating vehicle cantilever crane course of work, when upper arm rises or lower arm rises, the stream that needs to act Amount is big, system meeting automatic oiling door in chassis when executing upper arm liter or lower arm lift operations, and generator control circuit is not then by arm Frame actively needs the influence of chassis open out.Safety valve of second overflow valve 201 as Generation Control circuit guarantees Generation Control System pressure non-overloading.Pressure switch 34 is used for the pressure of 32 oil inlet oil circuit of detection platform generator motor, at generator 33 In charging work state, 34 output pressure signal of pressure switch to lower vehicle control is realized each to platform by master control system The operation of movement controls.

As shown in Figure 4 and Figure 6, turntable master control ratio valve group 30 includes rotation of rotary table control valve 301, lower arm lift controil valve 302, the flexible control valve 304 of upper arm lift controil valve 303, upper arm and speed control valve 305, above-mentioned each control valve are automatically controlled ratio Example hydraulic valve, rotation of rotary table motor 12 have the first working chamber and the second working chamber, the first working chamber of rotation of rotary table motor 12 It is connected to the first actuator port A1 of rotation of rotary table control valve 301, the second working chamber and rotation of rotary table of rotation of rotary table motor 12 Second actuator port B1 of control valve 301 is connected to；Lower arm lifting cylinder 3 has the first working chamber and the second working chamber, lower arm liter The first working chamber for dropping oil cylinder 3 is connected by the first actuator port A2 of upper arm up and down balance system valve 13 and lower arm lift controil valve 302 Logical, the second working chamber is connected to by the flat up and down balance system valve 13 of upper arm with the second actuator port B2 of lower arm lift controil valve 302； Upper arm lifting cylinder 5 has the first working chamber and the second working chamber, and the first working chamber of upper arm lifting cylinder 5 is gone up and down by upper arm Balanced valve 14 is connected to the first actuator port A3 of upper arm lift controil valve 303, and the second working chamber is flat by the flat lifting of upper arm Weighing apparatus valve 14 is connected to the second actuator port B2 of upper arm lift controil valve 303；Upper arm telescopic oil cylinder 16 have the first working chamber and First working chamber of the second working chamber, upper arm telescopic oil cylinder 16 is connected to the first actuator port A4 of the flexible control valve 304 of upper arm, Second working chamber of upper arm telescopic oil cylinder 16 is connected to the second actuator port B4 of the flexible control valve 304 of upper arm；Speed control valve The oil inlet P 11 of 305 the first actuator port A5 and turntable solenoid valve block 40, the oil inlet P 12 of platform solenoid valve block I 50 and flat The oil inlet P 13 of platform solenoid valve block II 60 is respectively communicated with, the second actuator port B5 and turntable solenoid valve block 40 of speed control valve Oil return inlet T 11, the oil return inlet T 13 of the oil return inlet T 12 of platform solenoid valve block I and platform solenoid valve block II 60 is respectively communicated with.

It operates rotation of rotary table control valve 301 to commutate, makes the first working chamber oil inlet of rotation of rotary table motor 12, the clockwise drive of turntable It is clockwise to move entire cantilever crane, the second working chamber oil inlet, turntable, which reverses, drives entire cantilever crane to reverse；Operate lower arm elevating control 302 Commutation makes the first working chamber oil inlet of lower arm lifting cylinder 3, and lower arm oil cylinder 3 rises driving lower arm 4 and rises, the second working chamber Oil inlet, the decline driving lower arm 4 of lower arm oil cylinder 3 decline；It operates upper arm lift controil valve 303 to commutate, 5 first work of upper arm lifting cylinder Make chamber oil inlet, upper arm oil cylinder 5 rises driving upper arm 6 and rises, the second working chamber oil inlet, the decline driving upper arm 6 of upper arm oil cylinder 5 Decline；It operates the flexible control valve 304 of upper arm to commutate, makes the 16 first working chamber oil inlet of upper arm telescopic oil cylinder, telescopic oil cylinder 16 stretches out Telescopic arm 7 is driven to stretch out, the second working chamber oil inlet, the retraction driving telescopic arm 7 of upper arm telescopic oil cylinder 16 bounces back；Speed control valve 305 is dynamic with turntable solenoid valve block 40, platform solenoid valve block I 50, II 60 collective effect of platform solenoid valve block auxiliary multiple to platform The selection of different movements and the control of each movement friction speed can be achieved；Pass through the biggish valve block of a piece of range of flow The speed proportional demand for control of the small flow movement in Comparison basis part is realized in the eight auxiliary movements control for completing platform；Speed Otherwise the commutation position that control valve 305 only allows to be fixed therein when working, not reversible switching operation easily cause other Malfunction and damage valve group.

As shown in figs. 4 and 7, flexible different valve is additionally provided between upper arm telescopic oil cylinder 16 and the flexible control valve 304 of upper arm Group 15, differential valve group 15 of stretching include flexible balanced valve 151 and shuttle valve 152, shuttle valve 152 include the first oil inlet a, second into Hydraulic fluid port b and third oil outlet c；152 first oil inlet a of shuttle valve stretches with upper arm the first actuator port of control valve 304 respectively A4, flexible 151 oil inlet of balanced valve connection, 152 third oil outlet c of shuttle valve are connected to another oil inlet of flexible balanced valve, 152 second oil inlet b of shuttle valve is connected to the second actuator port B4 of the flexible control valve 304 of upper arm.

When the first working chamber oil inlet of upper arm telescopic oil cylinder 16, since 16 rodless cavity of upper arm telescopic oil cylinder and rod chamber exist Difference in areas, the second oil inlet b of shuttle valve 152 are enclosed obstructed, and the oil liquid of the second working chamber of upper arm telescopic oil cylinder 16 successively leads to Cross 152 third oil outlet c of shuttle valve, the first oil inlet a of shuttle valve 152 enters back into the first working chamber of upper arm telescopic oil cylinder 16, from And differential connection circuit is formed, in the case where not needing chassis power open out in the not increased situation of flow system flow, i.e., It realizes automatic upper arm telescopic oil cylinder 16 of accelerating and stretches out speed, and then cantilever crane is driven quickly to stretch out；When 16 row of upper arm telescopic oil cylinder Journey to the end when, the pressure oil of the big pump 10-1 of duplex directly flows back to fuel tank by the first overflow valve 11, plays the role of safeguard protection.

As shown in Figure 4 and Figure 8, turntable solenoid valve block 40 include the clockwise overflow valve 401 of connecting lever, connecting lever reverse overflow valve 402, Connecting lever slewing directional control valve 403 and platform level reversal valve 404, and connecting lever rotary motor 17 has the first working chamber and the second work Chamber, the first working chamber are connected to 403 first actuator port C1 of connecting lever slewing directional control valve, and the second working chamber is changed with connecting lever revolution It is connected to the second actuator port D1 of valve 403；The oil inlet of the clockwise overflow valve 401 of connecting lever respectively with connecting lever slewing directional control valve 403 The first oil outlet and 17 first working chamber of connecting lever rotary motor be connected, connecting lever reverse overflow valve 402 oil inlet respectively with The second oil outlet and 17 second working chamber of connecting lever rotary motor of connecting lever slewing directional control valve 403 are connected, the clockwise overflow valve of connecting lever The oil outlet of 401 oil outlet and connecting lever reverse overflow valve 402 is connected in parallel to the oil return inlet T 11 of turntable solenoid valve block 40；

Platform levels the first actuator port C2 of the first oil inlet connecting platform leveling reversal valve 404 of lower balanced valve 18, Platform levels the second actuator port D2 of the second oil inlet connecting platform leveling reversal valve 404 of lower balanced valve 18；Platform leveling First oil outlet of lower balanced valve 18 is connected to the rodless cavity of lower leveling cyclinder 21, at the same by platform level upper balanced valve 19 with The rodless cavity of upper leveling cyclinder 22 is connected to, and platform levels lower second oil outlet of balanced valve 18 and the rod chamber of lower leveling cyclinder 21 Connection, while upper balanced valve 19 is leveled by platform and is connected to the rod chamber of upper leveling cyclinder 22.

When the first working chamber oil inlet of connecting lever rotary motor 17, connecting lever rotary motor 17 is clockwise, to drive insulation connecting lever 9 Clockwise, when the second working chamber oil inlet, connecting lever rotary motor 17 is reversed, so that insulation connecting lever 9 be driven to reverse；The clockwise overflow of connecting lever Valve 401 and connecting lever reverse overflow valve 402 clockwise to extreme position and reverse to extreme position and pressure point in insulation connecting lever 8 respectively Connecting lever rotary system overflow when not reaching respective relief valve set pressure is played the role of pressure limiting safeguard protection, and then is also protected Insulation connecting lever 9.

It when 22 first working chamber oil inlet of leveling cyclinder 21 and upper leveling cyclinder instantly, is constrained by jib structure, lower leveling oil Cylinder 21 is motionless, and upper leveling cyclinder 22 stretches out driving workbench 8 and leans forward；Instantly leveling cyclinder 21 and upper leveling cyclinder 22 second It when working chamber oil inlet, is equally constrained by jib structure, lower leveling cyclinder 21 is motionless, and upper leveling cyclinder 22 retracts driving workbench 8 hypsokinesis, can both realize the manually leveling of workbench 8, and can also be achieved insulating overhead operating vehicle workbench topples over function Energy.

As shown in figures 4 and 9, platform solenoid valve block I 50 includes boom slewing directional control valve 501, boom luff reversal valve 502 Reversal valve 503 is gone up and down with hoist, boom rotary motor 23 has the first working chamber and the second working chamber, boom rotary motor 23 The first working chamber and the second working chamber respectively with the first actuator port C3 of boom slewing directional control valve 501 and the second actuator port D3 connection；Boom luff oil cylinder 26 has the first working chamber and the second working chamber, and the first working chamber of boom luff oil cylinder 26 is logical It crosses arm up and down balance system valve 25 to be connected to the first actuator port C4 of boom luff reversal valve 502, the second working chamber passes through arm liter Drop balanced valve 25 is connected to the second actuator port D4 of boom luff reversal valve 502；Hoist lift motor 24 has the first work Chamber and the second working chamber, the first working chamber and the second working chamber of hoist lift motor 24 go up and down reversal valve 503 with hoist respectively The first actuator port C5 and the second actuator port D5 connection.

The clockwise driving boom of boom motor 23 is clockwise when the first working chamber oil inlet of boom rotary motor 23, the second work Boom motor 23 reverses driving boom to reverse when chamber oil inlet；When the 26 first working chamber oil inlet of boom luff oil cylinder, boom luff oil Cylinder 26 stretches out driving boom and rises, and boom oil cylinder 26 is shunk under driving boom when the 26 second working chamber oil inlet of boom luff oil cylinder Drop；When the 24 first working chamber oil inlet of hoist motor, the clockwise driving hoist of hoist motor 24 rises, 24 second working chamber of hoist motor When oil inlet, hoist motor 24 reverses driving hoist decline.

As shown in Fig. 4 and Figure 10, platform solenoid valve block II 60 includes that platform slewing directional control valve 601 and platform go up and down reversal valve 602；Platform rotary motor 27 has the first working chamber and the second working chamber, the first working chamber of platform rotary motor 27 and second Working chamber is connect with the first actuator port C6 of platform slewing directional control valve 601 and the second actuator port D6 respectively；Platform lifting oil Cylinder 29 has the first working chamber and the second working chamber, and the first working chamber of platform lifting cylinder 29 is locked by platform raise-lower hydraulic 28 are connected to the first actuator port C7 of platform lifting reversal valve 602, and the second working chamber of platform lifting cylinder 29 passes through platform Raise-lower hydraulic lock 28 is connected to the second actuator port D7 of platform lifting reversal valve 602.

When the first working chamber oil inlet of platform rotary motor 27, the clockwise driving workbench 8 of platform rotary motor 27 is clockwise, When the second working chamber oil inlet of platform rotary motor 27, platform rotary motor 27 reverses driving workbench 8 to reverse；Platform lifting When 29 first working chamber oil inlet of oil cylinder, platform lifting cylinder 29 stretches out driving workbench 8 and rises, platform lifting cylinder 29 second When working chamber oil inlet, platform lifting cylinder 29 retracts driving workbench 8 and declines.

Further, platform solenoid valve block II 60 further includes hydraulic interface reversal valve 603, hydraulic interface reversal valve 603 First actuator port C8 is connected to the oil inlet of hydraulic tool interface 31, the second actuator port D8 and hydraulic tool interface 31 Oil return opening connection.Hydraulic power is arranged without another in power source interface of the hydraulic tool interface 31 as external hydraulic tool.

This control system can both realize the single movement or the electric-hydraulic proportion intelligence for realizing composite move that cantilever crane is respectively actively made It can control；Boom frame telescopic can make system that can also quickly stretch out in the state that throttle is not added using simple Differential Control mode Cantilever crane movement, energy conservation and environmental protection；Platform auxiliary movement control loop passes through master control ratio valve group a piece of proportioning valve therein and three Solenoid valve block is applied in combination, and arranges the partition zone optimizing of solenoid valve block, while by the pipeline number in insulation arm drag chain into platform Amount greatly reduces, and the pipeline that cantilever crane is actively made, slightly not into insulation arm, hose latus rectum is greatly reduced, the self weight of platform valve group It substantially reduces, and the speed of all auxiliary movements of platform is realized with lower cost and acts the intelligent control of selection.

As shown in Figure 1 to Figure 3, a kind of small connecting lever insulating overhead operating vehicle cantilever crane, including turntable 1, workbench 8, insulation Upper arm 6, insulation lower arm 4, lower arm insulated pull rod 2, insulating telescopic arm 7, insulation connecting lever 9 and boom, 2 one end of lower arm insulated pull rod and 1 top of turntable is hinged, and the other end and insulation lower arm 4 are hinged, and insulation lower arm 4 is connected by lower arm lifting cylinder 3 with turntable 1, absolutely 6 one end of edge upper arm is hinged on one end of lower arm insulated pull rod 2 by upper arm lifting cylinder 5, and the other end passes through insulation connecting lever 9 and work Make platform 8 to be connected, equipped with flexible, the both ends for the upper arm 6 that insulate of upper arm telescopic oil cylinder driving insulating telescopic arm 7 in insulation upper arm 6 The leveling that lower leveling cyclinder 21 and upper leveling cyclinder 22 are respectively equipped with for workbench 8 controls；It is characterized in that, insulation connecting lever 9 one end is hinged on the side of workbench 8 by platform rotary motor 7, and the other end of insulation connecting lever 9 turns round horse by connecting lever Hinged with boom up to 17, boom upper end is equipped with boom rotary motor 23, and the side of boom is equipped with boom luff oil cylinder 26, hangs The other side of arm is equipped with hoist lift motor 24.

Such as Fig. 2, as shown in 3 and Figure 11, generator control valve group 20 is arranged in vehicle out-of-the-car position；Turntable master control proportioning valve Group 30 and turntable solenoid valve block 40 are arranged at cantilever crane turntable 1；Control boom movement platform solenoid valve block I 50 be located at Workbench 8 is without on crossbeam on the outside of 8 bracket of workbench of relative motion；Control platform revolution, platform lifting and hydraulic interface The platform solenoid valve block II 60 of three groups of movements is located at 8 carriage inner lateral crossbeam of workbench.

This laying mode makes platform solenoid valve block I 50 can not be by 8 lifting action of workbench to it into the pipeline of cantilever crane Caused by influence, and platform solenoid valve block II 60 reduces the pipeline into workbench valve group, and reducing workbench, there are phases Influence to movement to platform valve group pipeline, piping connection is compact reliably, is artistically decorated.

Preferably, platform solenoid valve block I 50 and platform solenoid valve block II 60 use two groups of identical valve groups, each electromagnetism Valve is all made of four latus rectum solenoid directional control valves of aluminum material production.Under the premise of meeting each auxiliary movement flow of platform, both significantly Valve group self weight is reduced, compared with the prior art the insulating overhead operating vehicle of all-hydraulic control system, valve group self weight is greatly lowered； In addition the volume of valve group is substantially reduced again, and valve group arrangement space also greatly reduces.

Claims (10)

1. a kind of small connecting lever insulating overhead operating vehicle arm support control system, including cantilever crane actively make control loop, cantilever crane is actively made Control loop includes hydraulic pump, turntable master control ratio valve group (30), rotation of rotary table motor (12), lower arm lifting cylinder (3), upper arm Lifting cylinder (5) and upper arm telescopic oil cylinder (16), pass through the operation of each operated control valve to turntable master control ratio valve group (30) The accurate control of cantilever crane revolution, lower arm lifting, upper arm lifting and upper arm expanding-contracting action can be achieved；It is characterized in that, further including putting down Platform auxiliary movement circuit and platform Generation Control circuit, platform auxiliary movement circuit include turntable solenoid valve block (40), platform electricity Magnet valve group I (50), platform solenoid valve block II (60), upper leveling cyclinder (22), lower leveling cyclinder (21), connecting lever rotary motor (17), boom rotary motor (23), hoist lift motor (24), boom luff oil cylinder (26), platform rotary motor (27) peace Platform lifting cylinder (29), the speed control valve (305) in turntable master control ratio valve group (30) is as in platform auxiliary movement circuit Flow control valve, control enters turntable solenoid valve block (40), platform solenoid valve block I (50) and platform solenoid valve block II respectively (60) flow is respectively acted, the leveling movement of workbench is controlled respectively by operating each solenoid valve block, the revolution of connecting lever movement, hangs The revolution movement of arm and lifting action, the lifting action of hoist, the revolution of platform and lifting action；The hydraulic pump is duplex Pump, the big pump (10-1) of duplex actively makees control loop for cantilever crane and platform auxiliary movement circuit provides power source, the small pump of duplex (10-2) provides power source for platform Generation Control circuit, and Generation Control circuit further includes generator control valve group (20), platform Generator (33), generator motor (32), generator electric quantity detection apparatus, platform Generation Control circuit pass through electric quantity detection apparatus The detection of platform generator (33) electricity is realized, automatic charging and power-off are carried out to platform generator (33).

2. small connecting lever insulating overhead operating vehicle arm support control system according to claim 1, which is characterized in that generator control Valve group processed includes the second overflow valve (201), flow preferential flow divider valve (202) and generator start and stop reversal valve (203), the small pump of duplex The outlet (10-2) is connected with the oil inlet P 1 of generator control valve group (20), the import E of flow preferential flow divider valve (202), second At overflow valve (201) inlet parallel to the oil inlet P 1 of generator control valve group (20), the outlet of flow preferential flow divider valve (202) F is connected to the oil inlet P of generator start and stop reversal valve (203), oil return opening R, the second overflow valve of flow preferential flow divider valve (202) (201) oil return inlet T of oil return opening and generator start and stop reversal valve (203) is connected in parallel to the oil return opening of generator control valve group (20) At T1, oil return inlet T 1 takes back fuel tank by pipeline；The outlet A and platform generator motor of generator start and stop reversal valve (203) (32) oil inlet B is connected to, and pressure switch (34) is connected on platform generator motor (32) oil inlet oil circuit, generator motor (32) Power source is provided for generator (33).

3. small connecting lever insulating overhead operating vehicle arm support control system according to claim 2, which is characterized in that turntable master control Ratio valve group (30) include rotation of rotary table control valve (301), lower arm lift controil valve (302), upper arm lift controil valve (303), Upper arm stretches control valve (304) and speed control valve (305), and above-mentioned each control valve is automatically controlled proportional hydraulic valve, rotation of rotary table Motor (12) has the first working chamber and the second working chamber, and the first working chamber and rotation of rotary table of rotation of rotary table motor (12) control First actuator port A1 of valve (301) is connected to, the second working chamber and rotation of rotary table control valve (301) of rotation of rotary table motor (12) The second actuator port B1 connection；Lower arm lifting cylinder (3) has the first working chamber and the second working chamber, lower arm lifting cylinder (3) the first working chamber is connected by upper arm up and down balance system valve (13) and the first actuator port A2 of lower arm lift controil valve (302) Logical, the second working chamber passes through the second actuator port B2 of upper arm flat up and down balance system valve (13) and lower arm lift controil valve (302) Connection；Upper arm lifting cylinder (5) has the first working chamber and the second working chamber, and the first working chamber of upper arm lifting cylinder (5) is logical It crosses upper arm up and down balance system valve (14) to be connected to the first actuator port A3 of upper arm lift controil valve (303), the second working chamber is logical The flat up and down balance system valve (14) of upper arm is crossed to be connected to the second actuator port B2 of upper arm lift controil valve (303)；Upper arm telescopic oil cylinder (16) there is the first working chamber and the second working chamber, the flexible control valve of the first working chamber and upper arm of upper arm telescopic oil cylinder (16) (304) the first actuator port A4 connection, the second working chamber and upper arm of upper arm telescopic oil cylinder (16) stretch control valve (304) Second actuator port B4 connection；First actuator port A5 of speed control valve (305) and the oil inlet of turntable solenoid valve block (40) The oil inlet P 13 of P11, the oil inlet P 12 of platform solenoid valve block I (50) and platform solenoid valve block II (60) are respectively communicated with, speed Second actuator port B5 of control valve and oil return inlet T 11, the oil return inlet T 12 of platform solenoid valve block I of turntable solenoid valve block (40) And the oil return inlet T 13 of platform solenoid valve block II (60) is respectively communicated with.

4. small connecting lever insulating overhead operating vehicle arm support control system according to claim 3, which is characterized in that upper arm is flexible Stretch differential valve group (15) are additionally provided between oil cylinder (16) and upper arm flexible control valve (304), differential valve group of stretching (15) includes Flexible balanced valve (151) and shuttle valve (152), shuttle valve (152) include the first oil inlet a, the second oil inlet b and third oil outlet c； (152) first oil inlet a of shuttle valve stretches with upper arm the first actuator port A4 of control valve (304), flexible balanced valve (151) respectively Oil inlet connection, shuttle valve (152) third oil outlet c is connected to another oil inlet of flexible balanced valve, shuttle valve (152) second into Hydraulic fluid port b is connected to the second actuator port B4 of upper arm flexible control valve (304).

5. small connecting lever insulating overhead operating vehicle arm support control system according to claim 4, which is characterized in that turntable electromagnetism Valve group (40) includes the clockwise overflow valve of connecting lever (401), connecting lever reverse overflow valve (402), connecting lever slewing directional control valve (403) and platform It levels reversal valve (404), connecting lever rotary motor (17) has the first working chamber and the second working chamber, the first working chamber and connecting lever (403) first actuator port C1 of slewing directional control valve connection, the second work of the second working chamber and connecting lever slewing directional control valve (403) Hydraulic fluid port D1 connection；The oil inlet of the clockwise overflow valve of connecting lever (401) respectively with the first oil outlet of connecting lever slewing directional control valve (403) with And (17) first working chamber of connecting lever rotary motor is connected, connecting lever reverses the oil inlet of overflow valve (402) to change respectively with connecting lever revolution It is connected to the second oil outlet and (17) second working chamber of connecting lever rotary motor of valve (403), the clockwise overflow valve of connecting lever (401) Oil outlet and the oil outlet of connecting lever reverse overflow valve (402) are connected in parallel to the oil return inlet T 11 of turntable solenoid valve block (40)；

Platform levels the first actuator port C2 of the first oil inlet connecting platform leveling reversal valve (404) of lower balanced valve (18), Platform levels the second actuator port D2 of the second oil inlet connecting platform leveling reversal valve (404) of lower balanced valve (18)；Platform The first oil outlet for leveling lower balanced valve (18) is connected to the rodless cavity of lower leveling cyclinder (21), while by putting down in platform leveling Weighing apparatus valve (19) is connected to the rodless cavity of upper leveling cyclinder (22), second oil outlet of balanced valve (18) and lower leveling under platform levels The rod chamber of oil cylinder (21) is connected to, while being connected by the rod chamber that platform levels upper balanced valve (19) and upper leveling cyclinder (22) It is logical.

6. small connecting lever insulating overhead operating vehicle arm support control system according to claim 5, which is characterized in that platform electromagnetism Valve group I (50) includes boom slewing directional control valve (501), boom luff reversal valve (502) and hoist lifting reversal valve (503), is hung Revolution of arm motor (23) has the first working chamber and the second working chamber, the first working chamber and the second work of boom rotary motor (23) Make chamber to be connected to the first actuator port C3 of boom slewing directional control valve (501) and the second actuator port D3 respectively；Boom luff oil Cylinder (26) has the first working chamber and the second working chamber, and the first working chamber of boom luff oil cylinder (26) passes through arm up and down balance system valve (25) it is connected to the first actuator port C4 of boom luff reversal valve (502), the second working chamber passes through arm up and down balance system valve (25) it is connected to the second actuator port D4 of boom luff reversal valve (502)；Hoist lift motor (24) has the first working chamber With the second working chamber, the first working chamber and the second working chamber of hoist lift motor (24) go up and down reversal valve with hoist respectively (503) the first actuator port C5 and the second actuator port D5 connection.

7. special according to claim 1 to small connecting lever insulating overhead operating vehicle arm support control system described in 6 any claims Sign is that platform solenoid valve block II (60) includes platform slewing directional control valve (601) and platform lifting reversal valve (602)；Platform returns Turn motor (27) with the first working chamber and the second working chamber, the first working chamber and the second working chamber of platform rotary motor (27) It is connect respectively with the first actuator port C6 of platform slewing directional control valve (601) and the second actuator port D6；Platform lifting cylinder (29) there is the first working chamber and the second working chamber, the first working chamber of platform lifting cylinder (29) is locked by platform raise-lower hydraulic (28) it is connected to the first actuator port C7 of platform lifting reversal valve (602), the second working chamber of platform lifting cylinder (29) is logical Platform raise-lower hydraulic lock (28) is crossed to be connected to the second actuator port D7 of platform lifting reversal valve (602).

8. small connecting lever insulating overhead operating vehicle arm support control system according to claim 7, which is characterized in that platform electromagnetism Valve group II (60) further includes hydraulic interface reversal valve (603), the first actuator port C8 of hydraulic interface reversal valve (603) and hydraulic The oil inlet of tool interface (31) is connected to, and the second actuator port D8 is connected to the oil return opening of hydraulic tool interface (31).

9. under a kind of small connecting lever insulating overhead operating vehicle cantilever crane, including turntable (1), workbench (8), insulation upper arm (6), insulation Arm (4), lower arm insulated pull rod (2), insulating telescopic arm (7), insulation connecting lever (9) and boom, lower arm insulated pull rod (2) one end and turn Hinged at the top of platform (1), hingedly, insulation lower arm (4) passes through lower arm lifting cylinder (3) and turntable (1) for the other end and insulation lower arm (4) It is connected, insulation upper arm (6) one end is hinged on one end of lower arm insulated pull rod (2) by upper arm lifting cylinder (5), and the other end passes through Insulation connecting lever (9) is connected with workbench (8), equipped with upper arm telescopic oil cylinder driving insulating telescopic arm (7) in insulation upper arm (6) Flexible, the both ends of insulation upper arm (6) are respectively equipped with lower leveling cyclinder (21) and upper leveling cyclinder (22) for workbench (8) Leveling control；It is characterized in that, one end of insulation connecting lever (9) is hinged on workbench (8) by platform rotary motor (27) The other end of side, insulation connecting lever (9) is hinged by connecting lever rotary motor (17) and boom, and boom upper end is equipped with boom revolution Motor (23), the side of boom are equipped with boom luff oil cylinder (26), and the other side of boom is equipped with hoist lift motor (24).

10. small connecting lever insulating overhead operating vehicle cantilever crane according to claim 9, which is characterized in that generator control valve group (20) it is arranged in vehicle out-of-the-car position；Turntable master control ratio valve group (30) and turntable solenoid valve block (40) are arranged in cantilever crane turntable (1) at；The platform solenoid valve block I (50) of control boom movement is located at and the workbench (8) of workbench (8) without relative motion On the outside of bracket on crossbeam；The platform solenoid valve block II (60) of control platform revolution, platform lifting and three groups of movements of hydraulic interface is set At workbench (8) carriage inner lateral crossbeam；Platform solenoid valve block I (50) and platform solenoid valve block II (60) are complete using two groups Identical valve group, each solenoid valve are all made of four latus rectum solenoid directional control valves of aluminum material production.