Quotation of Huai'an 30m Climbing CarLadder car, aerial work vehicle, aerial vehicle and climbing vehicle The working devices of aerial work vehicle include outrigger mechanism, lifting mechanism, slewing mechanism, work platform and its leveling mechanism. (1) At present, most outriggers are hydraulic outriggers.The power taken out by the automobile engine drives the hydraulic pump, and the hydraulic oil produced by the hydraulic pump is supplied to the hydraulic outrigger working cylinder through the control valve to realize the outrigger expansion.On both sides of the aerial work vehicle, there are generally control levers that can make the front, rear, left and right hydraulic outriggers stretch out or retract individually, so even on uneven or dumping ground, the vehicle body can be adjusted to a horizontal state for safe operation.
Quotation of Huai'an 30m Climbing CarLadder car, aerial work vehicle, aerial vehicle and climbing vehicle (2) The lifting mechanism realizes the lifting and luffing of the working platform.The vertical lifting mechanism can be divided into hydraulic transmission and mechanical transmission according to the transmission mode, and can be divided into cross scissors type and sleeve type according to its structural form.The cross scissor type is a connecting rod frame structure that is arranged in a cross way and hinged into a scissors shape.When the cross angle of the connecting rod is changed, the lifting movement is realized.The change of the cross angle of the connecting rod can be realized by the expansion and contraction of the piston rod of the hydraulic cylinder or the retraction and retraction of the wire rope.The sleeve type can be truss type, box type or cylinder type. The lifting movement can be completed through the expansion and contraction of multi section sleeves. The driving mode can be hydraulic transmission or wire rope pulley transmission.This vertical lifting mechanism has limited working height and small working range, but its working platform is large and its support is stable.Boom lifting mechanism can be divided into telescopic boom or straight boom, folding boom or bent boom, mixed boom and other forms, which is the mainstream lifting mechanism at present.The telescopic boom lifting mechanism is composed of a multi section suit and a telescopic box boom, including a basic boom and a telescopic boom. The telescopic boom can be one or more sections, and each section is equipped with a hydraulic cylinder.When the hydraulic cylinder is working, each boom can slide up and down along the guide element under the push of the piston rod of the hydraulic cylinder, thus changing the length of the boom.Folding arm lifting mechanism is folded from multiple box arms, which can be divided into up folding type and down folding type. The folding and unfolding of each arm is completed by the hydraulic cylinder between each arm.It can complete the operation of certain height and range, and the downward folding type can complete the space operation below the ground level.The hybrid boom lifting mechanism is composed of a folding boom and a telescopic boom, which combines the advantages of the two, expands the height and range of operation, and has a strong ability to surmount obstacles.
Quotation of Huai'an 30m Climbing CarLadder car, aerial work vehicle, aerial vehicle and climbing vehicle (3) The slewing mechanism usually adopts the full slewing mechanism, and the forward and reverse directions can be selected according to the operation needs.Generally, the hydraulic motor drives the mechanical slewing device with deceleration effect to rotate.The slewing part and operating platform of the slewing mechanism are installed on the slewing ring, namely the turntable.The driving device is fixed on the turntable, and its lower end is equipped with a driving gear.The slewing ring is composed of the turntable and the inner gear ring seat which is fixedly connected with the frame.When the driving device rotates, the gear is meshed with the fixed gear ring, and the gear rolls along the gear ring to drive the turntable to rotate.A ball or roller is installed between the turntable and the fixed gear ring seat to reduce the friction resistance of the turntable.The mechanical transmission mode of the slewing mechanism can be worm gear, cycloidal needle gear or planetary gear.
Quotation of Huai'an 30m Climbing CarLadder car, aerial work vehicle, aerial vehicle and climbing vehicle (4) The end of the working platform and the leveling mechanism lifting mechanism is connected to the working platform, which is the basic component for carrying people or equipment.In order to ensure the safety of operators and prevent equipment from falling, various countries have put forward clear requirements for the structure and performance of operating platforms.Such as platform guardrail height, platform width, platform anti-skid surface, safety belt on the platform, etc.In order to keep the bottom plane of the working platform level during operation, the aerial work vehicle is equipped with automatic leveling mechanism for keeping the working platform level, which mainly includes three types: mechanical type, mechanical hydraulic combination type and electro-hydraulic combination type.
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