CN2300546Y

CN2300546Y - Lifting/lowering flatbed type conveying vehicle

Info

Publication number: CN2300546Y
Application number: CN 97211347
Authority: CN
Inventors: 孙光强
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-25
Filing date: 1997-02-25
Publication date: 1998-12-16
Anticipated expiration: 2007-02-25

Abstract

The utility model relates to a lifting flat plate conveying vehicle. A front bridge is the driving bridge, and a back bridge is the turning bridge. The back part of a leading motive power towing vehicle is provided with a front door stand, and the two sides of the front door stand are provided with supporting liquid pressing oil cylinders. The turning bridge is provided with a back door stand, and the front and back door stands are connected by a lifting flat plate. The vertical sections of the two ends of the flat plate can maintain the smoothness of the leading motive power towing vehicle and the back bridge, and each vertical section is provided with a sliding wheel being able to move up and down in the concave groove of an inner stand. A liquid pressing mechanism is used to drive the lifting processes of the inner stand and the flat plate, and the flat plate can falls to the ground or be lifted to the needed height to bring convenience to the cargo loading and unloading processes. The flat plate can leave the ground to bring convenience to the walking process of the vehicle. The lifting flat plate conveying vehicle has the advantages of energy saving, safety and flexibility and is suitable for the cargo short haul of the station, the harbor and the warehouse.

Description

The lifting board transport trolley

The utility model relate to a kind of can the lifting board transport vehicle.

Existing counterbalanced lift truck is a kind of handbarrow of goods, and it has, and number of significant " is removed ", " fortune " function: the one, and the article that utilize pallet fork lifting and fork truck advance and retreat that manpower is difficult for moving carry out the automatic lifting loading and unloading of moving, be shifted; The 2nd, be engaged in the high palletizing operation of heap of goods; The 3rd, add the dull and stereotyped goods of being convenient to load and unload in order to the carrying manpower on the pallet fork and carry out short-distance transport.Above-mentioned functions makes fork truck be widely used in the transport operation in station, harbour, factories and miness, warehouse and other items.But in production practice, exist bulk cargo transport operations such as a large amount of volumes is little, in light weight, quantity bag how, bucket, packing material, fork truck can't be brought into play the lifting function, can only be manually with cargo handing on the fork of forklift truck flat board, fork truck is only as short-haul vehicle.Therefore, investigation in practice, the fork truck of only being engaged in short-distance transport accounts for and uses 55% of fork truck sum.Multi-functional fork truck but has many obvious deficiencies when only being engaged in the short-distance transport operation:

1, counterbalanced lift truck all will assemble balance weight and could satisfy the lifting requirement at the rear portion, needs crash-resistant car body to help supporting simultaneously, and this makes the fork truck curb mass be much higher than loading mass.As charge material amount 5 ton forklifts, curb mass just reaches 8 tons, and balance weight generally just accounts for half of charge material amount.Therefore, the fork truck dynamic property is low, the fuel oil consumption height, less economical, waste energy contaminated environment.

2, because of the preposition pallet fork loading of fork truck, vertical stationarity when keeping vehicle operating, cargo-carring goods is subjected to the restriction of load base, both the quality of goods size and mass cg vertical line were apart from pitching root distance from certain requirement is arranged, add factors such as the pallet fork platen area is less, just limited the shipped quantity of some goods, fork truck can not be transported at full capacity, this transport capacity to fork truck is a waste.The lade volume surpasses certain altitude, and the driver can't see the place ahead sight line clearly.This is the safety hazard of fork truck as transportation means.

3, pallet fork dull and stereotyped three open wide and area again little, dangerous to the loading and unloading operation personnel when the rising loading and unloading operation, turn in the goods transport way or goods is often fallen in the descending highway section again, the goods that falls down often hinders the operation of vehicle and is easily rolled bad by vehicle.

The purpose of this utility model is that the pallet fork of the single-ended stressed lifting of fork truck front overhang is put between two bridges, increase a hydraulic lifting door frame, the pallet fork that changes single-ended stressed lifting is the flat board of the stressed lifting in two ends, the cancellation balance weight, propons is preposition power driven bridge, back axle is a steeraxle, has formed to be convenient to the lifting board transport trolley that artificial handling goods only is engaged in short-distance transport.

A kind of lifting board transport trolley is except that comprising front driving axle and back steeraxle, front door frame is set behind tractor truck, on steeraxle, be located the frame that has a back door connection, and interconnect by lifting board, engine output power and conversion hydraulic pressure energy in the preposition power buggy, two-door hydraulic gear acts on simultaneously and makes dull and stereotyped steadily lifting, and flat board can land or be raised to desired height is convenient to loading and unloading operation, and flat board can be convenient to vehicle to run by a liftoff segment distance.

Technical solutions of the utility model can be achieved like this again: described preposition power before driving tractor truck comprises operator's compartment, and drive axle and front door frame, driving engine are positioned on the drive axle, after front door frame is positioned at tractor truck.

Technical solutions of the utility model can also realize like this: described front door frame structure is an eclipsed form, and internal frame is sleeved in the outrigger, and can slide in outrigger, and the door frame both sides are provided with the support hydraulic oil cylinder.

Technical solutions of the utility model also can be achieved like this: there is vertical section described lifting board rear and front end, and all be equipped with pulley can be in the internal frame groove up-and-down movement, be rigid connection between vertical section and the flat board.

Technical solutions of the utility model can also realize like this: be located the frame that has a back door connection on the steeraxle of described back, steering swivel system is fluid-link steering oil cylinder and pull bar.

Lifting board transport trolley recited above has the following advantages:

1, the lifting board of Cai Yonging is two ends stress balance liftings, needn't resemble to assemble balance weight the fork truck, does not also need crash-resistant supporting.Driving engine and power buggy volume are also corresponding to be dwindled.Factor to sum up, with identical charge material amount rank as a comparison, the lifting board transport trolley reduces greatly than fork truck curb mass.So lifting board transport trolley dynamic property improves, fuel oil consumption obviously descends, and remarkable economic efficiency is arranged.

2, lifting board transport trolley load base is broad, and platen area increases, and lade is not subjected to the restriction of volume and mass cg vertical line position, so easier reaching at full capacity transported.Working direction does not have door frame and goods blocks, and driver's sight line is openr.

3, increase because of platen area and blocking of door frame of back protected, the possibility of falling goods in the goods transport process reduces, and is difficult for being rolled bad by vehicle.The operation of loading and unloading personal security is improved.

4, the lifting board transport trolley is compared with fork truck, and material cost, tooling cost all can reduce greatly, and its total cost can reduce 20%-30%.

Description of drawings

Fig. 1, lifting board transport trolley front view

Fig. 2, lifting board transport trolley birds-eye view

Fig. 3, front door frame structural representation A-A are that door frame cutaway view Amplified image I is the pulley enlarged drawing

Fig. 4, lifting board structural representation

Fig. 5, back steeraxle scheme drawing

Embodiment now does as following the utility model in conjunction with the accompanying drawings:

A kind of lifting board transport trolley of the utility model is provided with former and later two door frames, after front door frame (3) is positioned at tractor truck, after being seated, back door frame (7) turns on bridge (6), and between the door frame liftable flat board (5).This flat board (5) is made up of horizontal segment and preceding vertical section (12) and back vertical section (14).Horizontal segment is loading flat board (5), front and back vertical sections (12) (14) are equipped with pulley (13) and are connected with chain, under front and back hydraulic ram (8) (16) effect, the lifting of internal frame (10) makes chain produce pulling force and drives dull and stereotyped (5) lifting, and pulley (13) rises when sliding up and down in internal frame (10) groove and reduces friction and directional tagging.Adopt rigid connection between dull and stereotyped (5) horizontal segment front and back and two vertical sections (12) (14).Two vertical sections (12) (14) are the lifting guide function not only, the more important thing is to keep tractor truck (1) and back door frame (6) to be in erectility, makes vehicle keep fore-and-aft stability.

Dull and stereotyped (5) are that two ends vertical section (12) (14) is subjected to pulling force to make steadily lifting of flat board (5) respectively, the antagonistic force of pulling force acts on respectively on front door frame (3) two supports oil cylinder (4) and the back axle tire, during so dull and stereotyped lifting door frame is not produced when resembling the single-ended stressed lifting of fork of forklift truck goods gravity to the big moment of door frame.Therefore, during interior outrigger relative motion, resistance of motion is little.The utility model adopts the eclipsed form door frame of compact conformation.Friction force is little mutually between the outrigger in when lift work (10) (9), and wearing and tearing seldom.Vehicle is when the walking operation, interior outrigger is static relatively, and door frame (3) (6) is subjected to pulling force and impulsive force big, can more equably these power be distributed to the better outrigger of intensity (9) by the internal frame (10) of these application forces, friction shoe or pulley are housed, to improve door frame service life between the interior outrigger.

The utility model lifting board transport trolley system adopts explosive motor as power, drives Hydraulic Pump simultaneously and produces the hydraulic pressure energy.Engine output power is passed to front driving axle (2) through power-transfer clutch, change speed gear box; Engine output power also can be passed to front driving axle (2) behind hydraulic pitch device and hydraulic gearbox, make wheel produce propulsive effort, by dull and stereotyped (5) dilatory back steeraxles (7) walking.

Hydraulic oil pump obtains power from driving engine, behind the generation hydraulic pressure energy, and hydraulic ram before and after hydraulic control is passed to.The biography of the hydraulic oil pipe of back hydraulic ram (16), trailing wheel (17) braking oil-gas pipeline connects, and is the same with lift truck attachment, adopts through sprocket wheel (11), through dull and stereotyped (5) bottom, the biography through sprocket wheel connects mode again.Because it is longer to pass to the hydraulic power line of back hydraulic ram (16), to consider that in hydraulic control system hydraulic pressure can lose by the pressure energy in pipeline, adopt different pressure regulating valves to come the pressure energy in the compensation pipes to lose, the pressure of two oil cylinders and the conformability of flow before and after keeping make steadily lifting of flat board (5).Hydraulic ram adopts the single-acting formula, rises by hydraulic pressure, descends by the deadweight effect.

The utility model propons is drive axle (2), and back axle is steeraxle (7), and the structure of back axle (7) can take into full account the assembling of intensity and door frame (6) and oil cylinder (16).When also being lifting board, the line of centers of hydraulic ram (16) is subjected to force line, consider dull and stereotyped (5) to the application force of back door frame (6) not on the back axle axis, for the stressed moment that rear axle is produced of balance door frame, with the line of centers and the back axle axis runout one segment distance C (see figure 5) of hydraulic ram (16).Steering swivel system adopts horizontal hydraulic ram (15) and pull bar, and fluid-link steering system can realize that teletransmission passs, and rear-axle steering can make steering torque reduce, and the lifting board transport trolley is turned to flexibly, and turn radius is little.

Lifting board (5) decline nadir is that flat board lands, and the rising vertex is 1500mm, also can design according to different needs, and dull and stereotyped (5) are at the upright liftoff 300mm of vehicle '.The moving velocity of vehicle requires to surpass 30km/h according to operating environment, and advance second gear and slow astern shelves are set.Brake system, operating system, electric system are identical with fork truck.

This lifting board transport trolley can carry out flat board (5) lift work after stopping to travel, before dull and stereotyped (5) lift work, supporting oil cylinder (4) are in bearing state.Therefore, brake-applying handle is linked to each other with the supporting oil cylinder switch.As long as braking during standstill also just makes supporting oil cylinder (4) be in bearing state.Lifting board (5) is removed braking during standstill when being in walking position, also just removes the supporting of oil cylinder (4).

Claims

1, a kind of lifting board transport trolley, comprise front driving axle (2) and back steeraxle (7), it is characterized in that between front door frame (3) behind the tractor truck (1) and back door frame (6), lifting board (5) being set, front door frame (3) is seated on the steeraxle (7) with fastening linking to each other of tractor truck (1), back door frame (6).

2, lifting board transport trolley according to claim 1 is characterized in that forming preposition power before driving tractor truck jointly by drive axle (2), front door frame (3) and operator's compartment, and driving engine is positioned on the drive axle (2), after front door frame (3) is positioned at tractor truck (1).

3, lifting board transport trolley according to claim 1 is characterized in that portal-framed structure is an eclipsed form, and internal frame (9) is sleeved on outrigger (10) lining, and door frame (3) both sides are provided with support hydraulic oil cylinder (4).

4, lifting board transport trolley according to claim 1, it is characterized in that dull and stereotyped rear and front end is provided with vertical section (12) (14), and all be equipped with pulley (13) can be in internal frame (10) groove up-and-down movement, be rigid connection between vertical section (12) (14) and dull and stereotyped (5).

5, lifting board transport trolley according to claim 1 is characterized in that being located the frame that has a back door connection (6) on the steeraxle (7), and steering swivel system is provided with fluid-link steering oil cylinder (15) and pull bar.