ОБҐРУНТУВАННЯ КОНСТРУКТИВНИХ ТА ЕКСПЛУАТАЦІЙНИХ ВИМОГ ДО ПІДЙОМНИКА ДЛЯ ОБСЛУГОВУВАННЯ ОПОР ВУЛИЧНОГО ОСВІТЛЕННЯ

Abstract

The article is an overview, and the presented information is of an overview nature and is dedicated to the justification of the choice of component parts of the selected structure of mechanized lifts for servicing street lighting poles. The purpose is to consider the shortcomings of the chosen analogue and to justify the components of the chosen design of the wheel lift, namely each individual part of it, which should ensure operation on street lighting poles with poles of different cross-sections. The main structural and operational requirements for the component parts of the selected lift structure were determined, namely: the lift components must be reliable, quickly reconfigurable in the field and without the use of special tools; the fastening of the wheels to the frame must be reliable and durable enough to withstand a heavy load; wheels must withstand large tangential loads, have good grip on the surface supports; brakes must meet certain requirements; the manipulator must be so reliable that it is possible to lift not only tools and equipment, but also a person, be compact and have enough controlled degrees of movement to easily fold down to the smallest possible dimensions; weight and size characteristics should allow its transportation in cargo or cargo-passenger vehicles of category "B" and above, as well as on trailers (semi-trailers) to them. Deficiencies of the existing design are identified and changes to the design details are proposed. Special attention is paid to brakes. Among the existing brakes are: disc brakes, drum brakes, foot brakes, regenerative brakes and electronic brakes. Disk ones were chosen. Types of brakes are arranged in order of efficiency types of electric scooter brakes. Therefore, taking into account the advantages and disadvantages of each type of b rake, disc brakes were chosen. The wheels themselves must be selected according to the following parameters: they must withstand a large tangential load, tires and the pressure in them must be selected so that there is good engagement with the support, a diameter of 11 inches.