Rack jack - quick overview of the
In everyday life with jacks, we encounter when replacing the wheels on the car. Many people know how to use a rack jack, but not all of them realize that the scope of their use is much wider. They are successfully used in bridge building, laying power lines, dismantling of building structures and in many other industrial areas.
They differ in compactness, simplicity and reliability. Currently, two types of jacks are used: with a manual and electric drive. They, in turn, by their design are divided into rack, screw, hydraulic and pneumatic devices. With their help, the cargo can be hoisted to a height of several meters or more.
Next, in detail we will consider the device of a rack jack. Its main part is a load-lifting steel rack, equipped with a platform for cargo. Its main feature is the low location of the cargo area. After lifting the load, the position of the rail is fixed by a special locking device.
Jack Rack DR-10 as a representative of heavyweights
Jacks designed to work with a mass of not more than 6 tons are equipped with a single-stage transmission. More powerful lifting mechanisms, carrying capacity of more than 15 tons, are equipped with a three-stage transmission mechanism. The heavyweight also includes a rack-mounted jack DR-10, which is powered by a manual drive.
This mechanism is used in the execution of construction work, as well as for the installation of various bulk cargoes. The main part of the design is a rack mechanism, driven by a handle, which transfers the force to a three-stage box. After lifting the load, the rack is locked by a special device. In the upper and lower part of the jack there are special fastening brackets for the lines, which are installed during its movement.
Rack jack, the instruction manual for which is always available complete with the device itself, is used both in isolated rooms and in open space and has a high coefficient of efficiency( 0.85).If you want to know in more detail how to use a rack jack, video materials of our site will allow you to get the most useful information on this issue. They outline the details of the operation of the lifting mechanisms, and also explains the features of their operation and maintenance.