Change the crane into a high-altitude vehicle into a hidden danger

Recently, an article appeared suddenly on the Internet, "Moving a Truck at High Altitude." This article mainly promotes the installation of a crane into a high-altitude truck. I would like to say that such modified cars have always been, and whether or not we should be classified as "three nos" products in terms of identity, and only from the comparison of the hardware conditions, we will never reach the standards for high-altitude equipment!

Therefore, I feel that I have the obligation and responsibility to make it clear. Simply define the definition of two types of equipment: Aerial vehicles are vehicles that transport workers and use equipment to the site and perform aerial operations. With chassis and legs, the legs can be opened to keep the body in balance while working; there is a boom that can be overhanged, crossed over certain obstacles, or can be moved at multiple points in one lift. More for inspection and maintenance work, belonging to special vehicles. The car crane is a type of crane mounted on the chassis of an ordinary car or a special automobile chassis. The driving cab is separated from the lifting control room, and the legs must be supported during work.

 

The coexistence of safety hazards retells the difference between crane conversion and aerial work vehicles: 1. Whether or not there is a safety guarantee function different from that of a crane, due to the high-risk nature of high-altitude operations, high-altitude operation vehicles can be said to be sufficient in terms of safety protection capabilities. The high-altitude operation vehicle is equipped with operating devices in the operation bucket and the rotary seat to remotely control the start/stop of the engine, high speed/low speed, and uses the electro-hydraulic proportional valve to control the movement of the arm. The working arm can continuously rotate left and right, relying on The connecting rod mechanism automatically maintains the working tank level, and when the main pump fails, the emergency pump lowering operation tank can be operated, and functions such as night lighting and safety alarm are provided. The converted cranes do not have any safety protection function. In the event of a breakdown, the workers in the basket will be unable to save themselves. 2. Differences in design priorities; As a mechanical device, each design covers the designer's efforts. High-altitude trucks, simply put, are tools that send people to high-altitude construction. This determines that every design on the vehicle needs to ensure the safety of people in the basket. Therefore, whether it is a hydraulic or electrical system, The first thing to solve is the stationarity and stability of the equipment when it operates. Because each shaking will bring psychological and physical discomfort to the workers. The hoisting machinery naturally takes the design of the hoisting ability as its emphasis, and the sloshing of a certain amplitude and the elastic bending that occurs when the boom is loaded are usually insufficient. 3, the gap in operational capacity; aerial vehicles , generally can be divided into two kinds of straight arm type and crank arm, especially arm-type aerial work vehicles, through the folding boom and basket rotation capacity, greatly increased the height The flexibility of the operating vehicle enables it to be freely stretched in a small space, plus the intra-basket operation function to ensure work efficiency. The modified crane obviously does not have such capabilities. It can be seen that although the converted crane has similarities with aerial work vehicles, it is not the same type of product, otherwise it will not belong to two industries. After all, pointing to a deer is a joke. In high-risk industries such as high-altitude operations, the consequences of deterring a horse are not only related to violations, but also to disrespect for life.

The aerial work vehicle is a multi-purpose aerial work machine whose function is to carry the operating personnel and the platform on which the equipment is used to special engineering equipment at a designated altitude for aerial operations. This equipment is widely used in high-altitude operations such as industrial and mining workshops, high halls, warehouses, stations, and plazas. The whole machine consists of platform, telescopic cylinder, single ladder type or double ladder type anti-rotation mechanism, chassis tank, outriggers, and walking wheels. The platform has a telescopic cylinder that is lifted directly. When the motor is started, the motor drives the gear pump to supply oil. The oil is input to the cylinder through the one-way valve and the electromagnetic channel. The telescopic cylinder rises section by section. When the platform is raised to the maximum height, the system pressure is also The rated working pressure is reached. At this time, the spill valve is unloaded and the hydraulic pressure is maintained at a constant working pressure. After the stoppage, the check valve maintains pressure, and the platform stays at the maximum working position. The platform can be used according to the working height of the site. Stay at any position below the maximum height.

High- powered aerial vehicles can overhang their work, cross over certain obstacles, or can perform multi-point operations at one lift; the platform can carry heavy loads and can be used by two or more people at the same time and can carry certain equipment; the lift platform has good mobility. Easy to transfer the venue; beautiful appearance, suitable for indoor and outdoor operations and storage. Applicable to stations, docks, shopping malls, stadiums, residential properties, factories and mines and other large-scale operations. High-altitude operation vehicles, easy to move, compact structure of folding arms, use of new high-quality profile steel, high strength, light weight, direct access to AC power or start with its own DC power supply, fast erection, worktable can be elevated and horizontally extended, also It is ideal for high-altitude operations because it can be rotated and easily reached obstacles to reach the working position.

Therefore, whether for the owner or the leasing party, safety is the priority, and professional work should still be given to professional people and equipment.

 

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