Automotive Lift Status And Select Precautions
Present, Market On Sell Of Lift Main Category with Double-column
, four-column type, three types of scissors.One drive type divided by two-column, divided into: mechanical and hydraulic
1, mechanical double-column machine works: in the inside of each column has a screw-nut transmission structure between the two sets of transmission in the possession of the chassis Sleeve Roller chain to pass connecting power, make two columns in the child care system to keep pace held up.
2, Double Column Lift hydraulic cylinder type and cylinder-type points.
Single cylinder lift works. The fuel tanks of the main pillars in the main chain drive through the main sliding frame, and then slip through even the shelves in the main chain drive; vice column in frame synchronization, vice slide up, down. It has the following safety device: (1) hydraulic system overload protection and hydraulic self-locking; (2) mechanical locking device; (3) chain fracture protection. In addition to the several hydraulic lift cylinder safety device, there should be balance between the two cylinders synchronized hydraulic control unit and to prevent a sudden burst device to prevent vehicle rollover occurred pipeline damage the situation.
Mechanical lift because there is nut screw and other parts easier to wear, Service Maintenance of large, high noise characteristics. With Modern Hydraulic technology advances have been able to produce quality domestic clearance hydraulic pump, hydraulic cylinders, hydraulic valves and other key components, therefore, now in the number of hydraulic mechanical over the mainstream varieties.
3, Four-column Hydraulic Lift style are basically working cylinder can be placed in the top between the two columns, column inside, inside parking platform. One cylinder placed inside the aircraft parking platform, platform lift smooth, concise appearance, is an ideal one.
If lifting the platform to set the second car, also can be four-wheel-location project. This four-poster with a secondary lifting trolley wheel alignment machines have become the mainstream model dedicated lift. Four-machine and double-column machines can be compared to larger vehicles, lifting operation. Applies more broadly. The future use of this model should increase dramatically.
Four-machine safety device should have the following: (1) hydraulic system overload protection and locked; (2) wire rope and chain breakage protection; (3) platform at the top of the mechanical locking devices; (4) Second cite l car after lifting of mechanical locking devices; (5) second lift car can be a reliable back-bit device. If a four-column machine is missing any of the above devices are unsafe.
4, Scissor Lift mainly simple shear type, single-cut picture-type, double-cut type. Because no column, drop in the overall maintenance of the region without any obstacles, so broad field of vision, save space, it is more popular models. Currently single shear Marsupial is its main models, has become an alternative to inter Four-wheel alignment machine dedicated lift. Double-cut type because of its smaller, in some Fast repair shop , Automotive beauty shops more popular. However, due to shear-type machine technically demanding, and thus its manufacturing cost than other models, the market price higher than the other models, which limits its Developing Space.
Scissor lift safety device must have the following: (1) hydraulic system overload protection and locked; (2) Lift mechanical locking device; (3) both sides of the synchronous system, if any are missing unsafe.
Second, choose Notes
A qualified lift in design and manufacturing process must be reliable and a good safety protection measures: considering (1) safe and reliable use of raw materials, processing methods; (2) the design and manufacture a variety of security devices; ( 3) operation and control institutions shall adopt fail-safe, that any single component, component damage will not occur fall and turn over the vehicle such dangers; (4) steel wire rope, chain and connecting ends should have sufficient safety factor , and the necessary failure test; (5) application test means 125% load and overload tests, to lift the national standards;
Automotive Lift Status And Select Precautions
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