Product Introduction

Relaxation sieve is a new type of screening machinery developed in the early 1980s. It is a screening machine that throws materials through the relaxation and tension motion of elastic screening surfaces installed on inclined screening boxes. Its main characteristics are improved screening efficiency, large processing capacity, low dynamic load, low power consumption, and low noise, making it widely used. This article will provide a detailed introduction to its structure and working principle.
The relaxation sieve consists of two sieve boxes, which are independent and connected to each other by cross beams. The deformable screen surface is installed on the cross beam, and the screen frame is composed of two side baffles, with the cross beams intersecting and connected. The sieve plate contains a screen surface that forms a bouncing flow and is installed on
On the cross beam. The two sieve frames are connected by guide springs.
The relaxation screen is a dual mass vibration system that uses a polyurethane rubber screen surface. Any two adjacent crossbeams supporting the screen surface belong to two vibrating bodies, one of which is the screen box and the other is the counterweight. During work, the screen mesh is alternately tightened and relaxed, causing the material to bounce forward, which can prevent the material from adhering to the screen mesh and blocking the mesh holes. When two bodies vibrate with a phase difference of two, any two adjacent beams sometimes approach and sometimes move away, and the elastic screen surface also relaxes and tightens accordingly, that is, the screen surface moves in a relative motion with the screen box while also moving relative to the screen box. This relaxation movement not only causes continuous deformation of the sieve holes, but also greatly increases the vibration intensity of the sieve surface, effectively overcoming the phenomenon of sieve hole blockage and significantly improving the processing capacity of the sieve machine.

Product Features

(1) Reasonable design of screen structure, maximizing the strength of the screen; Minimize the overall weight of the screen body as much as possible while meeting the strength requirements of the screening machine, so that the entire screening machine has the characteristics of high strength, light weight, and large processing capacity.
(2) The various connecting components of the equipment are assembled using noise reduction technology to ensure that the entire screening machine operates with low noise, with a noise level of less than 85dB within one meter.
(3) The excitation beam and crossbeam are welded using advanced welding processes and techniques, and undergo overall stress relief annealing according to special heat treatment processes. All weld quality meets the special fatigue requirements of high-strength vibration, while minimizing the risk of welding
Make welding deformation.
(4) The excitation beam and crossbeam should be finely processed to ensure that the dimensional deviations of each component are reduced to a reasonable range during the assembly of the screening machine, and to ensure the overall assembly quality of the screening machine.
(5) The crossbeam is designed with special shaped steel pipes, and the bracket and crossbeam are welded with embedded sleeves. The entire surface of the crossbeam is uniformly stressed, effectively avoiding stress concentration.
(6) After the surface treatment of the sieve body reaches Sa2.5 level, polyester protective paint is sprayed to give the surface high wear resistance and corrosion resistance.
(7) During the assembly of the screening machine, all mating surfaces and joint parts are treated with waterproof sealing.
(8) The vibrating screen body and installation base are equipped with steel spiral compression springs for vibration isolation and buffering. Rubber pads are added at both ends of the spring to reduce friction and noise between the spring and the steel spring seat plate.

Technical parameter