The Components of Scissor Lift

To solution the question "How does a scissor raise work?" it's far essential to have an knowledge of what additives cross into the layout and manufacture of a scissor raise assembly.

Most scissor lifts will comprise the subsequent middle useful additives:

Platform

The platform on the top of A scissor lift mechanism can be of various sizes, shapes, and materials. Also known as a lift table, the platform is the working surface that bears the load of personnel or work objects that the scissor lift raises or lowers. Units that transport workers typically feature a platform with guard rails around its perimeter for fall protection. Platforms without rails are typically designed for lifting or lowering materials and inanimate objects.

Scissor Legs

The scissor legs are the crisscross array or pantograph configuration of fabricated metal struts that bridge the gap between the base and the platform. The maximum working height of the scissor lift mechanism will be dictated by the length of each scissor leg or the number of scissor legs. The scissor legs raise the platform as they constrict (draw closer together) and lower the platform as they expand and can be driven by different power sources depending upon the specified application.

Cylinders

A scissor lift mechanism will typically have an array of one to four compression / expansion cylinders attached. These cylinders may be filled with hydraulic fluid (hydraulic scissor lift) or compressed air (pneumatic pump system) depending on the specification and the operating environment. An increase or reduction of pressure through these cylinders attached to the scissor legs actuates the raising or lowering action of the scissor legs and platform.

Base

This foundational part of the scissor lift mechanism is a sturdy footing made up of strong, rigid brackets. The base is engineered with tracks to guide the rollers at the bottom of the scissor legs. In conjunction with strong support from the base, these rollers ensure steady and stable raising and lowering of the unit. The size and configuration of the scissor lift base will depend on the model and its application.

Power Source

There is a range of power sources that can be specified to power a scissor lift. These can range from self-contained motors that run on different fuel sources to remote power packs. The selection of the most suitable power source will be dependent on the operating environment of the scissor lift.

Down Valve

The down valve controls the flow of compressed air or hydraulic fluid back to its reservoir. The speed of this flow dictates the speed at which the platform will descend. The power source is connected to the down valve that controls the rate of descent.

Flow Control Valve

The flow control valve regulates the scissor lift rate of accent or decent by controlling how quickly the fluid or compressed air leaves or returns to the reservoir cylinder.

Types of Power Source

Most scissor lifts are self-propelled and have a steering capability enabling them to be driven to their required work area. Consideration must be given to the terrain that the scissor lift may encounter as it is being moved to the work area to prevent it from becoming stuck or unstable. Some smaller lightweight units for indoor work may not be self-propelled and require maneuvering by hand.