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Sep 08, 2015 This work aims to conduct a systematic mechanics analysis of the beam structures and improve the design method. Total motion of a beam structure in screening process can be decomposed into the traditional followed rigid translation (FRT), bending vibration (BV) and axial linear-distributed random rigid translation (ALRRT) excited by the
A hyperstatic net-beam device was set between two side plates of the vibrating screen which was composed of six beams, two exciter beams and
Sep 01, 2009 A hyperstatic net-beam device was set between two side plates of the vibrating screen which was composed of six beams, two exciter beams and three static plates. The beams distributed on the support plates according to the requirement of exciting force.
The screen body includes side plates, bearing beams, spring supports, and stiffeners. The excitation system consists of two box vibrators connected with universal couplings. Box vibrators are fixed on exciting beam with high-strength bolts. With the rotation of the eccentric blocks within box vibrators, the screen body vibrates.
Aiming at the frequently fracture happening in the large-scale liner vibrating screen beams, the software of finite-element analysis, ANSYS is used to analyze the modal and harmonic response of the beam structure. The analysis result suggests the danger area where beam is prone to fracture because of fatigue. The improvement scheme of the beam structure is proposed and
novel large vibrating screen with a duplex statically in-determinate mesh beam structure. rough the model analysisresultcomparisonswith thetraditionalvibrating screen, the superiority of this structure was veried 12. Jiang et al. established a dynamic model and stability equations of the variable linear vibration screen and in-
The structure of the vibrating screen with hy perstatic net-beam was modified according to optimal resu lts and the natural characteristic was analyzed. The first twelve modal frequ ency and ...
2.1. The Structure of Vibrating Screen. ZS2560 is a linear vibrating screen widely used in coal separation. As shown in Figure 1, the ZS2560 linear vibrating screen is mainly composed of vibration exciters, screen box, and spring. The screen box is the main working part of the vibrating screen, and accordingly, it is vulnerable to the damage.
The vibrating screen exciter beam and the screen frame beam adopt a box-shaped beam structure with reinforcing ribs inside to improve the rigidity and strength of the screen machine and reduce the weight of the whole machine. Thereby improving the efficiency of the whole machine and reducing power consumption.
Oct 29, 2021 vibrating screen structural specifiion. Vibrating Screen Structural Specification. Scope covers mechanical vibrating screens used for, screening the material of various grain sizes.1.1 the standard screen sizes shall be in accordance with is 2405-1980 specification for industrial.To is 226-1975 structural steel. vibrating screen structural specifi
The crossbeam of the vibrating screen is a beam that supports the vibrator on the top of the screen frame, also known as cross-girder. Generally, screen equipment with a box-type vibrator has a very strong crossbeam. And it determines the useful life of the vibratory screen equipment.
1.Use the unique eccentric structure to produce powerful vibrating force. 2.The beam and case of screen are connected with high strength bolts without welding. 3.Simple structure and easy maintenance. 4.Adopting tire coupling and soft connection makes operation smooth. 5.High screen efficiency, great capacity and longer service life.
Use the unique eccentric structure to produce powerful vibrating force. The beam and case of screen are connected with high strength bolts without welding. Simple structure and
May 15, 2021 Beam Structure For Vibrating Screen An extra-large vibrating screen with duplex statically indeterminate mesh beam excitation body and plate type combined bearing beam comprises plate type flat and rigid statically indeterminate combined bearing beam (12) arranged in a screen box (1), a plurality of Y-shaped statically indeterminate combined ...
Use the unique eccentric structure to produce powerful vibrating force. The beam and case of screen are connected with high strength bolts without welding. Simple structure and easy maintenance. Adopting tire coupling and soft connection makes operation smooth. High screen efficiency, great capacity and longer service life.
The cross beam and track beam can be solved by replacement. Cracks on the side plates can be welded. However, since the welding stress cannot be eliminated, cracks will appear again soon. The following mainly lists the treatment methods for the cracking of the side plate of the vibrating screen. Difficulties in the treatment of side plate cracks
Aug 31, 2019 7 troubleshooting tips for vibrating screen common problems. August.31,2019. Mining vibrating screen used in metallurgy, mining, coal, building materials, electric power, chemical and other industries, especially in the metallurgical industry. It is the most widely used screening machine under the blast furnace tank, coking plant and concentrating
Totally sealed screen Snap on profiles on top, bottom and frontal part of the screen. Rubber grip strips Trellex dust sealing cloth for interface between vibrating and stationary parts Top frame structure (arches and snap on profiles) Trellex dust sealing cloth for top cover
Oct 20, 2021 Identifying the appropriate support for the type of screen. Since there are a wide variety of vibrating screens on the market, its important for structural engineers to determine in advance whether the equipment is mounted to the structure using rigid or flexible supports.
Use the unique eccentric structure to produce powerful vibrating force. 2. The beam and case of screen are connected with high strength bolts without welding. 3. Simple structure and easy maintenance. 4. Adopting tire coupling and soft connection makes operation smooth. 5. High screen efficiency, great capacity and longer service life.
Vibrating screen is the one of key equipments in coal preparation industry. It is difficult of acquisition of condition signal and feature extraction of crack fault because of the structure features of the vibrating screen lower beam. So there is no effective method to diagnose the crack fault of the vibrating screen lower beam at home and abroad. This paper studied and
Some of the steel structure vibrating screen improvise eccentric blocks as the excitation forces, wherein the excitation forces are stronger. These steel structure vibrating screen also use tire coupling processes for smoother operation and the screen beam, as well as screen box, are able to adopt higher-strength bolts.
Sep 08, 2015 Demand for large vibrating screen is huge in the mineral processing industry. As bending and random vibration are not considered in a traditional design method for beam structures of a large vibrating screen, fatigue damage occurs frequently to affect the screening performance. This work aims to conduct a systematic mechanics analysis of the beam
vibrating screen upper beam is thin-walled circular tube structure, the shell element is adopted in finite element meshing, element SHELL181 is applied to the vibrating screen upper beam with the adaptive meshing method.K0 K0
Apr 14, 2021 A systematic mechanical analysis of the structure was carried out and an improved design method considering bending and random vibration was developed. proposed a novel large vibrating screen with a doubly indeterminate mesh beam structure.
Sep 01, 2009 The reliability is a key factor for the design and manufacture of large vibrating screen. In the paper, we presented a new large vibrating screen with hyperstatic net-beam structure. Dynamic characteristic of the vibrating screen was researched and dynamic simulation method of large screening machines was explored.
Jul 26, 2015 Source This article is a reproduction of an excerpt of In the Public Domain documents held in 911Metallurgy Corps private library. screening-capacity screen-capacity vibratory-screen-design-vibrating-screen-types-selection Screen Frame Sizes and Scale-Up Problems Major Screen Components. Now, essentially you can break screens down into
The present invention concerns a vibrating screen (1) having wear protections (8)placed on beams (4) of the vibrating screen (1). A supporting structure (3) for screening media (2) is placed on the beams (4). The wear protections (8) are snapped onto adapters (7) fixed to the beams (4). The 5 adapters (7) are fixed to the beams (4) by an adhesive.
Mar 15, 2018 They were fixed on the horizontal edges of lateral plates which were connected to a bearing beam in order to test the vibrating acceleration amplitude of the screen structure. As the elastic-deformed natural frequency of a screen structure is designed to avoid the exciting frequency, namely, 16.25 Hz for CWKS1218, the screening structure is ...
The design of screens therefore calls for special attention to fatigue detail. An apparently insignificant change in design detail can have a profound effect on the fatigue life of a screen. The catastrophic failure of two deck support beams on a vibrating screen is evidence of the above statement and the subject of this paper.
It is shown that, in the vibrating screen structure, dynamic stress is oversize at the positions of crossbeam, discharging beam and in-material beam, the values are much larger than static stress, and these are caused by notched specimen in beam components. Optimal improved scheme of beam section is finalized by computer simulation analysis ...
Abstract. Key Words the beam of liner vibrating screen low stress failure model analysis response analysis Abstract Aiming at the frequently fracture happening in the large-scale liner vibrating screen beams, the software of finite-element analysis, ANSYS is used to analyze the modal and harmonic response of the beam structure.
Study on Stiffness Identification for Damping Springs And Dynamic Problems of Beam Structures in A Large Vibrating ScreenCN
Abstract The reliability is a key factor for the design and manufacture of large vibrating screen. In the paper, we presented a new large vibrating screen with hyperstatic net-beam structure. Dynamic characteristic of the vibrating screen was researched and dynamic simulation method of large screening machines was explored. We used finite element method (FEM) to analyze
May 06, 2019 vibrating screen for sale. 1 Structure and working principle. The main parts are drive, screen, vibration exciter, bumper, transmission, spring, side panel. The cross member is the main component of the screen body and is made of the hollow rectangular steel tube. The rubber layer of the beam outer surface can prevent it from the erode and can ...