CN208036276U - A kind of tool car - Google Patents

Abstract

The utility model discloses a kind of tool cars, the lifting platform in compartment, transmission device and both sides including chassis, on the chassis, further include have traveling turn to integrated device, mainly by bogie, traveling wheel drive unit, travelling wheel, preceding inside directive wheel, outside guide wheel group at；Travelling wheel is driven by traveling wheel drive unit；Preceding inside directive wheel is connected to the interior side skeleton of bogie by spring, and bogie both sides stage casing is hinge connection；The travelling wheel is an integral structure with the bogie, and preceding travelling wheel can be deviated with bogie front end, is realized and is turned to；The front-end and back-end of the bogie are connect with chassis by the flange plate bolt with rubber cushion blocks, when section turns to offset before or after bogie, chassis and are deviated therewith with upper bit, realize full-vehicle steering.

Description

A kind of tool car

Technical field

The utility model is related to service technique fields, and in particular to a kind of tool car.

Background technology

Existing tool car is generally by chassis, compartment, operation bridge, power source, transmission device, running gear, braking Device, front and back overhauling workbench, hang together hitch, vehicle rise Holder for hanging household utensiles, lighting device and driver's tool composition, for track into Row maintenance.Current tool car is generally with the poor problem of stability.

Utility model content

In view of the deficiencies of the prior art, the utility model is intended to provide a kind of tool car, by running gear and transfer More stable steering is realized in integrated design.

To achieve the goals above, the utility model adopts the following technical solution：

A kind of tool car, including chassis, the compartment on the chassis, transmission device and the lifting platform of both sides, also Include traveling turn to integrated device, mainly by bogie, traveling wheel drive unit, travelling wheel, be set to the bogie before The preceding inside directive wheel of inside, the outside guide wheel group on the outside of the bogie at；The travelling wheel is by the travelling wheel Driving device drives；Inside directive wheel is connected to the interior side skeleton of the bogie, the bogie two by spring before described Side stage casing is hinge connection；When tool car enters bend, it is described before inside directive wheel can PC beams by bending compressing, pass through bullet Spring contraction is transmitted to side skeleton in bogie；The release of outside directive wheel spring, to the bogie front end to bend side Direction deviates；The travelling wheel is an integral structure with the bogie, and preceding travelling wheel can be deviated with bogie front end, real It turns now to；The front-end and back-end of the bogie are connect with chassis by the flange plate bolt with rubber cushion blocks, and bogie is worked as It when front or rear section turns to offset, chassis and is deviated therewith with upper bit, realizes full-vehicle steering.

Further, the bogie is also connected to the chassis by damping device.

Further, the traveling wheel drive unit includes motor and motor erection support, and the travelling wheel is mounted on horse Couple with bogie up to upper, then by motor bearing.

Further, it is passed by the steering of flanged joint there are two being set between the preceding travelling wheel of bogie and rear travelling wheel Lever is equipped with rubber cushion blocks between ring flange.

Further, further include thering is rescue to take turns, the rescue wheel is separately installed in the front-end and back-end of chassis.

Further, the lifting platform passes through hydraulic-driven horizontal extension, vertical lift and inside and outside overturning.

The beneficial effects of the utility model are：Pass through the integrated setting of traveling and steering so that tool car is in traveling In steering it is more coherent and stablize.

Description of the drawings

Fig. 1 is the side structure schematic diagram of the utility model；

Fig. 2 is the positive structure schematic of the utility model.

Specific implementation mode

Below with reference to attached drawing, the utility model will be further described, it should be noted that following embodiment is with this Premised on technical solution, detailed embodiment and specific operating process are given, but the scope of the utility model and unlimited In the present embodiment.

As shown in Figs. 1-2, a kind of tool car, including chassis 3, the compartment 4 on the chassis 3, transmission device 5 and The lifting platform 6 of both sides, further include have traveling turn to integrated device, mainly by bogie 1, traveling wheel drive unit, travelling wheel, Set on the bogie 1 it is anterointernal before inside directive wheel, the outside guide wheel group on the outside of the bogie at；It is described walk Row wheel is driven by the traveling wheel drive unit；Inside directive wheel is connected to the inside of the bogie 1 by spring 2 before described Skeleton, bogie both sides stage casing are hinge connection；When tool car enters bend, the preceding inside directive wheel can be by bending The compressing of PC beams is transmitted to side skeleton in bogie by spring contraction；Outside directive wheel spring release, to the bogie Front end to one side direction of bend deviate；The travelling wheel is an integral structure with the bogie, and preceding travelling wheel can be with steering Frame front end deviates together, realizes and turns to；The front-end and back-end of the bogie pass through the ring flange with rubber cushion blocks with chassis It is bolted, when section turns to offset before or after bogie, chassis and is deviated therewith with upper bit, realize full-vehicle steering.

Further, the bogie is also connected to the chassis by damping device.

Further, the traveling wheel drive unit includes motor and motor erection support, and the travelling wheel is mounted on horse Couple with bogie up to upper, then by motor bearing.

Further, it is passed by the steering of flanged joint there are two being set between the preceding travelling wheel of bogie and rear travelling wheel Lever is equipped with rubber cushion blocks between ring flange.

Further, further include having rescue wheel 8, the rescue wheel is separately installed in the front-end and back-end of chassis.

Further, the lifting platform passes through hydraulic-driven horizontal extension, vertical lift and inside and outside overturning.

Further, connection vehicle hook 7 is additionally provided on the bogie.

The utility model is described in further detail below.

One, the basic composition of tool car

1. tool car is by chassis, compartment, operation bridge, power source, transmission device, running gear, brake apparatus, front and back Overhauling workbench hangs together the compositions such as hitch, vehicle Holder for hanging household utensiles, lighting device and driver's tool.

2. per car can carry 1, generator, 1 set of distribution box (220V/380V).

3. per car mobile generator 1, stable AC 220V can be exported, ± 5%.Not less than 8kw alternating currents, distribution box 1 set of AC 220V.

4. cab signal device and radio contact equipment (not in this scope of supply, but spare interface and installation site).

Two, drive system

(1) drive system forms：Tool car power source selects 30 diesels engine for automobile of east wind comings ISDe230, band charging Generator starts motor, and the type technical performance is advanced, with failure is few, coefficient of torque reserve is big, fuel consumption rate is low, makes an uproar The features such as sound is small, service life is long meets Eurolll discharge standards.

(2) elasticity of engine and plunger pump：Engine is coupled with hydraulic oil pump by 4237 transfer cases, and three outputs, SAE connects Mouthful, maximum list pump power 210kw can play oil pump good buffer protection function, it is hard to overcome existing engineering truck spline housing Oil pump caused by connection damages, and extends the usage time of oil pump.

(3) engine is installed：Engine is arranged in using integral sealing in compartment by hood, and engine enclosure is set For interlayer, heat-insulated noise control layer is housed between interlayer.Hood can be easily turned on and off, and be protected convenient for on-wing maintenance It supports, engine is mounted on by yielding rubber pad on chassis central sill, and damping effect is good, and engine center of gravity is ensureing its repair guarantor It is in extreme lower position in the case of supporting easily, tankage can meet engine and continuously run 20 hours, tank filler position It is easy to lubricate in bottom frame floor face.

(4) motor exhaust roof discharges：The exhaust pipe of engine is bent after eliminating the noise, purifying and extends to roof, to room Outer discharge, long-time idling will not be polluted when stopping along build, exhaust gas caused by engine, the hot gas of generation is from vehicle side Face is discharged outside compartment.

(5) there are enough surpluses by calculating for the engine technology parameter selected.

(6) the serial two-way variable displacement plunger pump extensive use on existing engineering truck of hydraulic oil pump Sa Australia 90, performance are stablized, with Mating electric control reversing handle can easily operate the advance, retrogressing, braking of vehicle.

(7) hydraulic motor：SAMPO-BBCO2 series wheel-side motor carries out extensive use, performance in engineering machinery Stablize, defined running velocity can be reached by being computed can be directly mounted on tool car.Matched hydraulic pressure horse It is 8470Nm up to brake torque, to ensure that vehicle is reliably braked on 60 ‰ ramps, needs 13000 × 0.475m= The braking moment of 6175Nm.If the single brake failure of comparative descriptions tool car, any one is enough completely in remaining brake The braking requirement of sufficient vehicle, the problem of brake failure will not be caused.

(8) closed type hydraulic system：Engine, bidirectional variable hydraulic pump, hydraulic motor and brake pass through pipeline, valve block group At enclosed driving circuit, under the driving of this primary Ioops, single-row vehicle whole process operation, straight road maximum speed is not less than 40km/h, 60 ‰ ramp speed are not less than 25km/h；Two train of vehicles are even hung, and whole delivery operation, all fronts speed of service is not less than 20km/ H meets requirement.

(9) differential function：Tool car running gear can realize stepless speed regulation, make vehicle smooth ride.Both ends driver behavior Platform energy is flexible, is conveniently operated vehicle advances, retreats, maximum operational speed 40km/h；And can rescue traction another tool car with The distance of the speed all fronts of 20km/h comes back to the base；Vehicle low-speed stable performance is good, can be with 0~5km/h in service work Velocity-stabilization maintenance traveling.

(10) work system open circuit：Engine, gear pump, oil cylinder, valve block, hydraulic oil pipe etc. form open type and return Road, under the driving of this primary Ioops, inspection platform is achieved horizontal extension, vertical lift, varus and the functions such as turns up；Various pieces It radiates to the radiator that hydraulic motor is power, reduces the hydraulic fluid temperature of vehicle.The design of this primary Ioops utilizes hair Power when motivation idling ensure that vehicle without other attached prime mover.

(11) hydraulic oil container is arranged apart：Requirement of the open circuit to hydraulic oil is well below closed circuit to hydraulic oil It is required that after two hydraulic oil containers are installed separately by tool car, be conducive to the cleaning for keeping closed circuit hydraulic oil first, extension is closed The service life of formula loop hydraulic oil is cost-effective, after secondly may filter that with closed hydraulic loop hydraulic oil after a period of time again It is secondary to be used for open circuit, further save cost.

(12) hydraulic tube, hydraulic valve arrangement：Fluid pressure line, valve block avoid PC beam running faces and arrange as possible, while I The theory that will be arranged using the integrated hydraulic pipeline of latest domestic, the hydraulic valve pipeline of vehicle is subjected to integrated control, with hard tube Based on arrangement, supplemented by hose connection, to improve security of system, and full vehicle pipeline is identified, it is convenient to overhaul.

Three, the steering integrated device of traveling

(1) it forms：Traveling and turn-around design are structure as a whole by the tool car of the utility model, by bogie skeleton, subtract Vibrating device, power drive unit, motor erection support, travelling wheel, is oriented to the compositions such as steady wheel at whole bogie, passes through damping Device and two center towing pins are attached with vehicle frame.

(2) steering principle is sketched：When tool car enters bend, the pressure of inside directive wheel PC beams by bending before bogie Compel, side skeleton in bogie is transmitted to by spring contraction；Outside directive wheel spring release, and in this Integral steering frame both sides Section is hinge connection, and to be that whole bogie front end is deviated to one side direction of bend, bogie is integral type knot with travelling wheel Structure, preceding travelling wheel can be deviated with bogie front end, realized and turned to.Section carries rubber with chassis by two before and after bogie The flange plate bolt of cushion block connects, and when section turns to offset before or after bogie, can make chassis and by this connection with top Position deviates therewith, realizes full-vehicle steering.

(3) damping device：Vehicle vibration absorber is to support shock mitigation system, the shock mitigation system by the general rubber of railway operation vehicle Lower part is equipped with liquid lubricant breaking-in mechanism for contacting can also realize compartment and bogie well while playing damping effect Between sliding movement.In addition, travelling wheel, which is light rail car, inflates Michelin's tire, level-one damping work can be also played well With.

(4) there are 4 travelling wheels, 8 directive wheels, 4 steady wheels.Travelling wheel is mounted on wheel-side motor, then passes through horse Couple up to bearing with bogie.Pass through the steering drive link of flanged joint, method there are two being set between travelling wheel before and after bogie It is equipped with rubber cushion blocks between blue disk, issuable phenomenon of nodding in bogie operational process can be prevented,

(5) rescue wheel：Rescue wheel use advanced polyurethane steel core wheel, be mounted on floor underframe for vehicle front and back end, front and back each 1, Apart from beam face 100mm, when there is tyre break situation, inclination of vehicle degree can be effectively controlled.

(6) four-wheel drive：Tool car drive motor selects the single amount BBC02 series of the single speed of sampo companies of Finland production, BBC02-642 types and each 2 wheels side black bear motor parallel drive of BBC02-783 types, the motor configuration is compact, output torque is big, Highly reliable and energy is well and tool car travelling wheel matches to form driving unit, and is not take up tool car overall space.

(7) travelling wheel：Travelling wheel uses pneumatic tire (model：345/85R16XPMATL), single tire bears maximum load Lotus reaches 5 tons or more, and tool car is that four travelling wheels support jointly, fully meets the operation of the operating modes such as tool car heavy duty, unbalance loading It needs；Directive wheel and steady wheel (model：5.00-8) select solid core rubber tyre.Steady wheel is oriented to car body to connect for non-rigidity It connects, away from identical, each wheel, which adjusts PC side pressures by spring, applies pretightning force, ensures tool car any for wheelbase and travelling wheel Vehicle frame bottom surface and PC beams face keeping parallelism under operating mode.

(8) travelling wheel is dismantled：Tool car traveling tire is mutual indepedent, is driven by individual wheel-side motor, the hydraulic pressure horse It is fixed on bogie by high-strength bolt cantilever up to erection support.Traveling tire is convenient for disassembly and assembly, right over traveling tire Car body top on be provided with skylight, be provided on indoor floor dismounting tire cover board, dismount tire when lifting steel wire rope can pass through Skylight utilizes carrier tire of having driven a vehicle with cover board.It only need to be by the bolt pine of the wheel-side motor erection support of side when same dismounting motor Open easily to dismantle in the car.

(9) the old tire on the drive wheels of light rail car utilizes：Tool car uses light rail car Michelin's tire, since this vehicle is conducted oneself with dignity Relatively light, 3 tons of single tire load-bearing is improved tire wear and stressing conditions, can be used completely after follow-up steering frame technology The old tire on the drive wheels operation of light rail car, to reduce use cost.

(10) selection of running gear structural member meets technology and requires and using function needs, eliminate machining stress and concentrate, heat Potential faults are eliminated in affected defect detecting test after processing.

Four, electrical system explanation

(1) power supply is controlled：This tool car every is by 4 sail accumulator (models：It 6-Q-195A) forms, grouping setting It for 24V power supplys, is controlled by electromagnetic switch, change-over switch controls forward/backward operation platform operation power, and power supply inlet-outlet line is prevented by insurance The generation only overloaded ensures that voltage, electric current stablize output in underload electromagnetic switch akinesia

(2) control circuit：This vehicle will in single track series Operation Van creative use programmable logic controller (PLC) (i.e. PLC), Analog input mModule, the control system of touch screen triplicity, to realize the automation of operation, the real-time prison of whole vehicle state Control and reliable self-test warning function.Such PLC controls system has been obtained in conventional project machinery field Using, and obtain good effect.PLC controls system is superior in self-test, repair, operation various aspects Conventional low voltage circuit at present is one of this vehicle bright spot.

(3) low-tension supply part：The low-tension supply of tool car includes two kinds of 220V and 380V, is generated electricity from vehicle-mounted hydraulic Machine, the equal having air switch of each low-tension distribution box and power supply indicator instruction, to ensure low pressure Electrical Safety.

(4) low-tension distribution box：Low-tension distribution box is installed separately with 24V direct-current power distribution cabinets, and tool car sets low pressure at two and matches altogether Electronic box is located under interior and vehicle.

(5) button switch：Each button switch uses the automobile-used button switches of DC24V of internationally renowned brand, such as west gate as possible Son, De Lixi etc. overcome the problems, such as tool car button switch easily along bad.

(6) hydraulic generator：The use of vehicle-mounted hydraulic generator so that tool car need not repeat installation power source, reduce Discharge, noise pollution source take full advantage of power when engine operating, save improve vehicle operating environment while The energy.

(7) arrangement of cable：Tool car uses inserting as possible using fire-retardant, nontoxic locomotive electric wire arrangement circuit Formula connecting terminal, each end that connects mark wire size with number marking tube, are provided conveniently for maintenance dismounting from now on；Cable splice head heat-shrink tube It connects, to ensure to connect insulation quality, vehicle cable is arranged in cable trough as possible, reduces exposed, delaying aging.

(8) according to the requirement of vehicle-mounted signal device, the fixed installation position and required power supply that are reserved with signalling arrangement connect Mouthful.

Five, rigid track girder inspection platform

1. platform motion mode：Using hydraulic-driven, can horizontal extension, vertical lift, inside and outside overturning, pass through different behaviour It adjusts, inspection platform can meet needs.

2. the hydraulic lock of inspection platform：Overhaul working platform is now had been supplied in by bidirectional hydraulic lock lock-bit, such setting In No. two line Operation Vans that my company manufactures and designs, it is ensured that completely full in arbitrary lifting position without the time > 24 hours of gliding Foot construction demand.

3. inspection platform upper limit：Inspection platform can rise at any time, to facilitate releasing upper limit, the platform upper limit Travel switch is installed at position, after only contacting upper limit, other control buttons of platform could be powered, and it is dynamic to complete decline overturning etc. Make.

4. inspection platform lower limit：Lower limit mechanical stop device is installed at platform Maximum Descent Height, prevents platform Because other factors are fallen.

5. platform abrupt deceleration vehicle：In inspection platform emergency brake operations can be carried out to vehicle.

6. safety monitoring device：Vehicle is solved operation traffic safety and is asked using radar alarm, video intercom monitoring technology Topic and communication problem facilitate driver to stop and align.

7. space for maintenance：Inspection platform is turning up, headroom length dimension 2230mm.Meet what two people worked at the same time It needs.

8. workbench overlaps：, it can be achieved that mutually overlap joint, composition overhaul rigid rail manually after overturning platform after workbench declines The trouble free service face of road beam.

Six, safety device

Tool car has but is not limited to following safety guard and measure：

(1) safety device is arranged：Various corresponding Warning boards, operating instruction, compartment and service work are puted up in compartment Equal placing fire extinguisher in platform, to ensure personnel's equipment safety.

(2) handrail is installed inside compartment on both sides of the middle installation car door, it is ensured that personnel have when working on telescopic pedal can The seat-belt anchorage leaned on ensures personnel safety.

(3) overspeed protective device：By controlling hydraulic oil pump output flow the limit of operation handle, reaches and control always Hydraulic oil maximum output flow, to limit tool car maximum speed.

(4) tool car is equipped with emergency management and rescue wheel, since tool car uses four-wheel drive, as long as tool car is dynamic defeated Go out, by the support of emergency management and rescue wheel, wherein wantonly two driving wheel can guarantee that tool car low speed self comes back to the base.

(5) each overhaul working platform of tool car, which designs, is equipped with descending stroke limit switch.

(6) emergency brake switch there are one control brake is all provided in each overhaul working platform, in platform In the case that staff has found emergency, can open the emergency brake switch makes tool car hard brake stop.

(7) tool car overhauling workbench, which is equipped with, prevents the mechanical stop that platform is fallen.

(8) 2 anti-collision buffer devices are respectively arranged at vehicle crossbeam both ends.The structure of large arc type both solves vehicle The passage that anti-collision problem on curve is also personnel between vehicle provides safety assurance.

(10) it is respectively reserved with power interface and hydraulic quick coupling at maintenance crossbeam both ends, when so as to emergency relief To this tool car input power and hydraulic power supply.

(11) various corresponding Warning boards, operating instruction are puted up in compartment, are placed in compartment and overhaul working platform Fire extinguisher, to ensure personnel's equipment safety.

Seven, it is hung together with other vehicles

1. electric hydraulic quick coupling：Be mounted on per trolley rear and front end hydraulic quick coupling that vehicle is hung together and Electric appliance quick coupling front and back can be hung together.

2. tool car is mutually hung together：The hydraulic quick coupling of tool car and electric appliance quick coupling can be intended in a tool car The upper purpose for manipulating another tool car, two-way long distance running is convenient, safe before and after organizing into groups vehicle.

3. being hung together with other vehicles：If tool car is hung together with other motorless vehicles, pass through quick coupling tool car Hydraulic power source and power supply can be provided to unpowered vehicle, facilitate unpowered tool car operation, operation.Acceleration on unpowered vehicle simultaneously Platform can also manipulate tool car, and bidirectional driving may be implemented after hanging together.

About being described as follows for tool car function：

1, has steel track beam structural repair function

1. it includes every maintenance and inspection such as finger plate, bearing, pier stud cap to track beam structure to be mainly used for.It transports and safeguards Personnel, equipment tool to operation field return to vehicle base after the completion of operation.

2. can rescue other tool cars, and base can be drawn go back to.

3. a jib crane or platform trailer can be drawn.

4. meeting power supply, signal, communication, the every maintenance and inspection of Mechatronic Systems to being installed on track girder.

5. including every maintenance and inspection such as finger plate, bearing, pier stud cap to track beam structure.

6. to all steel track beam bottom surfaces, side and top surface Inspection and maintenance and painting operation require.

7. the arbitrary section that 10 people, service kit and maintenance and repair parts run on monorail can be carried.

2, function when tool car is used to draw

1. can be used for rescuing other tool cars, and draw go back to base.

2. can be used for drawing a jib crane or platform trailer.

3, running velocity

1. single-row vehicle completely half discharge capacity operation is not less than 40km/h, on 60 ‰ ramps not straight to maximum speed Less than 25km/h.

2. two train of vehicles are hung together, all fronts delivery operation, all fronts speed of service is not less than 20km/h.

3. low speed is run when line maintenance operation, speed governing can be stablized within the scope of 0-5km/h.

4. operation function and purposes

4.1 overhauling workbenchs have rigid track beam structure upkeep operation function

(1) be used for include to track beam structure finger plate, bearing, pier stud cap every maintenance and inspection；To on track girder Power supply, signal, communication, the every maintenance and inspection of Mechatronic Systems of installation；To all steel track beam bottom surfaces, side and top surface check It safeguards and painting operation requires.

(2) workbench is mounted on each one of vehicle front and rear sides, is guided by bracket, hydraulic pressure or motor drive its lifting, most Big falling head is 2.7m, is used for steel track beam structural inspection.

(3) overturning workbench sets guardrail for three weeks, and safety strap hook is set on guardrail, is equipped with safety belt.Workbench bottom surface and three weeks If web plate is fallen with protection object.

(4) when workbench declines 2.7m, overturning working platform overturning in place, overlaps PC beams two sides workbench, composition inspection manually The workbench of rigid track girder is repaiied, workbench is equipped with protective fence and seat belt hanger, and platform has under the anti-object of safety net It falls.

(5) front and rear sides workbench is all equipped with the Operation switch of a pendency, and to control worktable lifting, both sides hang Vertical switch can also operate simultaneously.The control of workbench also uses hydraulic transmission.

(6) it includes every maintenance and inspection such as finger plate, bearing, pier stud cap that overhauling workbench, which meets to track beam structure, Power supply, signal, communication, every maintenance and inspection of Mechatronic Systems that can be to being installed on track girder, to all steel track beam bottom surfaces, side Face and the requirement of top surface Inspection and maintenance and painting operation.

(7) each overhauling workbench should be equipped with beam circuit turn over function, meet operating space requirement.

(8) workbench, which is equipped with, prevents the baffle and safety belt suspension device that personnel, tool equipment fall, and is arranged eye-catching Caution slogan and operating instruction, and convenient working personnel are upper and lower, ensure safety.

(9) rotary type lighting apparatus is installed in workbench, and reserves other power interfaces.

(10) in engine or Hydraulic pump fault, hoistable platform has manual (mechanical) lifting device, it is ensured that vehicle Platform is quickly risen after breaking down, to be dragged away from scene as early as possible by other breakdown lorrys.

(11) in driver and self-powered platform convenient and reliable communication means is equipped between operating personnel.

For those skilled in the art, it can be provided various corresponding according to above technical solution and design Change and distortion, and all these change and distortions, should be construed as being included in the utility model claims protection domain it It is interior.

Claims (6)

1. a kind of tool car, including chassis, the compartment on the chassis, transmission device and the lifting platform of both sides, special Sign is, further includes having traveling to turn to integrated device, mainly by bogie, traveling wheel drive unit, travelling wheel, be set to it is described Bogie it is anterointernal before inside directive wheel, the outside guide wheel group on the outside of the bogie at；The travelling wheel is by institute State the driving of traveling wheel drive unit；Inside directive wheel is connected to the interior side skeleton of the bogie by spring before described, described Bogie both sides stage casing is hinge connection；When tool car enters bend, it is described before inside directive wheel can PC beams by bending pressure Compel, side skeleton in bogie is transmitted to by spring contraction；The release of outside directive wheel spring, to the bogie front end to One side direction of bend deviates；The travelling wheel is an integral structure with the bogie, and preceding travelling wheel can be with bogie front end one Offset is played, realizes and turns to；The front-end and back-end of the bogie are connect with chassis by the flange plate bolt with rubber cushion blocks, It when section turns to offset before or after bogie, chassis and is deviated therewith with upper bit, realizes full-vehicle steering.

2. tool car according to claim 1, which is characterized in that the bogie is also connected to by damping device described Chassis.

3. tool car according to claim 1, which is characterized in that the traveling wheel drive unit includes motor and motor peace Bearing is filled, the travelling wheel is mounted on motor, then couples with bogie by motor bearing.

4. tool car according to claim 1 or 3, which is characterized in that the preceding travelling wheel of bogie and rear travelling wheel it Between set there are two by the steering drive link of flanged joint, be equipped with rubber cushion blocks between ring flange.

5. tool car according to claim 1, which is characterized in that further include thering is rescue to take turns, in the front-end and back-end of chassis It is separately installed with the rescue wheel.

6. tool car according to claim 1, which is characterized in that the lifting platform by hydraulic-driven horizontal extension, hang down Go straight up to drop and inside and outside overturning.