The working principle of car lifter

The working principle of the car lifter: the main component of the car lifter is the hydraulic system. Relying on the hydraulic system pressurized lifting, motor driven hydraulic pump, hydraulic pressure to promote the hydraulic cylinder plunger, drive the chain, lifting the car bracket, lift the car. Decompression landing, pull the slide two mechanical safety lock, press the manual valve, start to unload oil down.

When press the button of starting motor on hydraulic pressure, the motor will start, drive the oil pump, pressurize the hydraulic oil from the hydraulic tank to the cylinder, make the piston rod move. At this time the relief valve is closed, in order to ensure the requirements of the rated load for lifting. The pressure has been adjusted before the factory. When the pressure in the system exceeds the limit, automatic overflow unloading oil. Prevent the occurrence of safety accidents. Release the start button to stop the oil supply, the end of lifting, and start the work.

Scissor lifter is divided into large shear and small shear

The main thing is to rely on the hydraulic pump to lift the load plate upward. Some of the current small shear has no mechanical lock, but the use of the main vice cylinder interlock function. In general, the large shear will still take the form of mechanical lock.

Large shears are basically used for vehicle pre-inspection stations and do four-wheel alignment, small shears are generally used for vehicle repair.

Scissor lift is used for auto repair machinery in the auto repair industry. Depend on the hydraulic system to drive the lift, also called hydraulic lift, in the car repair and maintenance plays a vital role, the whole car overhaul and maintenance, are inseparable from the hydraulic lift. With the increase in China’s car sales, lift as an important tool for car maintenance, the demand has also increased greatly.

Before using the car lifter, you must carry out daily inspection on the relevant parts according to the manual. Check whether the oil level of hydraulic oil tank is normal. No-load test run must be carried out before each shift.

Proceed according to the following procedure: Turn on the power switch. Press the rising button, the working platform should be able to rise normally. Release the button, the working platform should be able to stop reliably. After rising to a certain height and stopping, hook the working platform on, at this time the four hooks must be able to hang reliably on the pegboard inside the column.

When turning the reversing valve to supply air, the four hooks should be able to completely detach from the pegboard. Press the down button, the working platform should fall at normal speed, release the down button, the working platform should be able to stop reliably.

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