RU2394654C1 - Vibration screening machine - Google Patents

Vibration screening machine Download PDF

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Publication number
RU2394654C1
RU2394654C1 RU2009119199/03A RU2009119199A RU2394654C1 RU 2394654 C1 RU2394654 C1 RU 2394654C1 RU 2009119199/03 A RU2009119199/03 A RU 2009119199/03A RU 2009119199 A RU2009119199 A RU 2009119199A RU 2394654 C1 RU2394654 C1 RU 2394654C1
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RU
Russia
Prior art keywords
vibration
screen
screening
screening machine
beams
Prior art date
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RU2009119199/03A
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Russian (ru)
Inventor
Александр Леонидович Бидуля (RU)
Александр Леонидович Бидуля
Александр Константинович Кириков (RU)
Александр Константинович Кириков
Олег Геннадьевич Краснов (RU)
Олег Геннадьевич Краснов
Сергей Александрович Воробьев (RU)
Сергей Александрович Воробьев
Original Assignee
Открытое акционерное общество "Российские железные дороги" (ОАО "РЖД")
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Priority to RU2009119199/03A priority Critical patent/RU2394654C1/en
Application granted granted Critical
Publication of RU2394654C1 publication Critical patent/RU2394654C1/en

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Abstract

FIELD: process engineering.
SUBSTANCE: invention relates to solid material grading devices, particularly to their design peculiarities related with to railway ballast with increased moisture and impurities content. Proposed screening machine comprises housing made up of two sidewalls with external support journals, cross beams, screening surface fitted on said cross beams, vibration exciter and suspension. Screening machine incorporates automatic control system and vibration amplitude pickups fitted on screening machine housing and vibration frequency pickups fitted of screening machine housing of vibration exciter coupled with ACS. Suspension allows adjusting rigidity in vertical and horizontal planes and varying vibration amplitude via varying, for example air pressure in air cylinder chambers. Vibration exciter allows varying vibration frequency to provide for optimum screening conditions, ballast conditions and screening machine load.
EFFECT: higher efficiency of screening.
1 dwg

Description

The invention relates to devices for sorting solid materials, in particular to their structural elements associated with the feature of sorting the ballast of a railway track of high humidity and contamination.
There is a known screen for sorting ballast of a railway track, containing a box mounted on elastic shock absorbers, a vibrodrive, an upper metal sieve, a lower sieve made in the form of individual fragments with elastic string ribbons gathered in them, installed with the possibility of oscillations with an amplitude of 1.5 times higher than the oscillation amplitudes of the upper sieve, and cascaded with an angle of inclination to the horizon less than 4-10 degrees of the angle of inclination of the upper metal sieve (RU, patent No. 2275252, CL B07B 1/46, 2006).
A known vibrating screen, including a box with a sieve mounted on elastic supports, a single-shaft vibrator with an unbalance connected to the box, the screen is equipped with an electromagnet, a program relay and a device for changing the direction of vibration of the box, which is made in the form of a differential-planetary mechanism having gears, a gear wheel and satellites, the axle shafts of which are installed inside the gear wheel and additional unbalance mounted on the shaft of the vibrator, covering the main one, while one of the gears diff of the planetary-planetary mechanism is rigidly connected to the main unbalance, and its satellites are kinematically connected to another gear, which is connected to the additional unbalance by means of a gear and a gear rack with an electromagnet core, which is connected to a program relay (SU, AS No. 1311125, C. B07B 1/40, 1985).
The disadvantages of the known vibrating screen are the lack of the ability to automatically control the main screening parameters - the amplitude and frequency of vibration, which reduces the efficiency of the vibrating screen, as well as the increased complexity of the design of the screen reduces its reliability, given the conditions of its operation.
A known crash adopted as a prototype, comprising a housing in the form of sidewalls with external support trunnions and transverse tie-beams, a screening surface placed on the tie-beams, a vibration exciter and a suspension in the form of ropes with springs with adjustable vibration amplitude along the length of the screening surface during separation materials with different physical and mechanical characteristics, the screen is equipped with two shoulders levers, shock absorbers and devices for regulating the preliminary compression of the suspension springs, and the shoulder levers are mounted with the possibility of rotation on the support trunnions, and the shock absorbers on the sidewalls, while one shoulder of each two-shouldered lever is placed with the possibility of interaction with shock absorbers, and the other has a number of holes and is connected to the corresponding suspension rope (SU, A.S. No. 1327999, B07B 1/42, 1986).
The disadvantages of the known screen are the lack of automatic control of the main screening parameters - the amplitude and frequency of vibration, which reduces the efficiency of the screen, as well as increased design complexity (the presence of two-arm levers, ropes, etc.) reduces the reliability of the screen.
The technical result of the invention is to increase work efficiency and simplify the design of the screen.
The specified technical result is achieved by the fact that in the screen, which includes a body in the form of sidewalls with external support trunnions and transverse tie-beams, a screening surface placed on the tie-beams, vibration exciter and suspension, the screen is equipped with an automatic control system and vibration vibration amplitude control sensors installed on the screen body, and vibration frequency sensors mounted on the screen body or vibration exciter and associated with the automatic control system, the suspension is made with zmozhnostyu adjusting stiffness in the vertical and horizontal planes and correspondingly changes oscillatory due to changes in amplitude, e.g., air pressure in the cavities of the bellows, and the vibration exciter is adapted to change the frequency oscillatory screening for optimal modes of screening according to the quality and condition of ballast and load screen.
The drawing shows a diagram of a screen with an automatic control system and sensors for monitoring the amplitude and frequency of vibration.
A screen, including a housing made in the form of sidewalls 1, with external trunnions 2 and transverse connection beams 3 with a screening surface made in the form of two screens 4 and 5, placed on the connection beams 3, vibration exciter 6 and suspension 7, is equipped with an automatic system control 8 and sensors 9 for controlling the amplitude of vibrational vibrations installed on the sides 1 and sensors 10 for vibrational frequency mounted on the sides 1 or on the body of the vibration exciter 6. Suspension 7 is made, for example, in the form of air cylinders 11. Sensors 9 and 10 via cables 12 are connected with the automatic control system 8. Depending on the state of the ballast entering the screen (for example, heavily contaminated, wet ballast, overloaded screen), the sensors 9 and 10 register a decrease in the amplitude and frequency of the vibration of the screen and transmit data to the automatic control system 8, which, on the basis of the installed programs, issues the appropriate commands, for example, to increase the air pressure in the pneumatic cylinders 11 and increase the rotational speed of the drive of the vibration exciter 6, setting optimal vibration parameters for the implementation of the most efficient screen operation.
The roar works as follows.
Clogged ballast is fed to the loading point of the screen. Under the action of vibration initiated by the vibration exciter 6, the weed and ballast particles of small fractions freely pass through the upper sieve 4 with large cells. On the upper sieve 4 there are particles of ballast of large and medium fractions. Ballast weed with particles of fine fractions falls on the lower sieve 5, where it is sieved, and suitable fractions are separated from the weed. The automatic control system 8, depending on the signals received through the cable connection 12 from the sensors 9 and 10, determines the optimal parameters of vibration, the amplitude and frequency of vibration, and gives the appropriate commands to set the pressure in the pneumatic cylinders 11 and, accordingly, the amplitude of the vibration of the screen and set the rotation frequency of the exciter drive 6, providing an increase in the performance of the screen and the quality of cleaning the ballast with fluctuations in size, shape, humidity and contamination of the ballast.

Claims (1)

  1. A screen, including a case in the form of sidewalls with external support trunnions and transverse tie-beams, a screening surface placed on the tie-beams, a vibration exciter and a suspension, characterized in that the screen is equipped with an automatic control system and vibration amplitude control sensors mounted on the screen body and vibration frequency sensors mounted on the screen body or vibration exciter and associated with an automatic control system, the suspension is made with the ability to control stiffness and in the vertical and horizontal planes and, accordingly, changes in the amplitude of vibrations due to changes, for example, air pressure in the cavities of pneumatic cylinders, and the exciter is configured to change the frequency of vibrations of the screen to ensure optimal screening modes depending on the quality and condition of the ballast and the load of the screen.
RU2009119199/03A 2009-05-21 2009-05-21 Vibration screening machine RU2394654C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2009119199/03A RU2394654C1 (en) 2009-05-21 2009-05-21 Vibration screening machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2009119199/03A RU2394654C1 (en) 2009-05-21 2009-05-21 Vibration screening machine

Publications (1)

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RU2394654C1 true RU2394654C1 (en) 2010-07-20

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Family Applications (1)

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RU2009119199/03A RU2394654C1 (en) 2009-05-21 2009-05-21 Vibration screening machine

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103638730A (en) * 2013-11-11 2014-03-19 吴中区木渎蒯斌模具加工厂 Pneumatic-electric bimodal high frequency dewatering screen
CN103706562A (en) * 2013-12-20 2014-04-09 柳州译海网络科技有限公司 Intelligent vibrating screen
CN103769362A (en) * 2014-02-19 2014-05-07 徐州徐工施维英机械有限公司 Vibrating screen
CN106311429A (en) * 2016-11-07 2017-01-11 郑州游爱网络技术有限公司 Sandstone grinding and screening plant for construction engineering
RU185351U1 (en) * 2017-12-27 2018-12-03 Александр Анатольевич Шубин Vibrater
RU189555U1 (en) * 2018-12-05 2019-05-28 Федеральное государственное бюджетное образовательное Учреждение высшего образования "Воронежский государственный аграрный университет имени императора Петра 1" (ФГБОУ ВО Воронежский ГАУ) Reshetny camp
RU2737247C1 (en) * 2020-05-28 2020-11-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) Device for extraction of bee bread

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
МАРЮТА А.Н. и др. Автоматическое управление технологическими процессами обогатительных фабрик. - М.: Недра, 1983, с.156-157. *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103638730A (en) * 2013-11-11 2014-03-19 吴中区木渎蒯斌模具加工厂 Pneumatic-electric bimodal high frequency dewatering screen
CN103706562A (en) * 2013-12-20 2014-04-09 柳州译海网络科技有限公司 Intelligent vibrating screen
CN103769362A (en) * 2014-02-19 2014-05-07 徐州徐工施维英机械有限公司 Vibrating screen
CN103769362B (en) * 2014-02-19 2015-12-23 徐州徐工施维英机械有限公司 A kind of vibratory sieve
CN106311429A (en) * 2016-11-07 2017-01-11 郑州游爱网络技术有限公司 Sandstone grinding and screening plant for construction engineering
RU185351U1 (en) * 2017-12-27 2018-12-03 Александр Анатольевич Шубин Vibrater
RU189555U1 (en) * 2018-12-05 2019-05-28 Федеральное государственное бюджетное образовательное Учреждение высшего образования "Воронежский государственный аграрный университет имени императора Петра 1" (ФГБОУ ВО Воронежский ГАУ) Reshetny camp
RU2737247C1 (en) * 2020-05-28 2020-11-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) Device for extraction of bee bread

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