CN203316386U

CN203316386U - Full-amplitude support high-frequency linear vibrating screen

Info

Publication number: CN203316386U
Application number: CN2013203809894U
Authority: CN
Inventors: 王海生; 王作军
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-29
Filing date: 2013-06-29
Publication date: 2013-12-04
Anticipated expiration: 2023-06-29

Abstract

The utility model relates to a full-amplitude support high-frequency linear vibrating screen, which belongs to the field of vibrating screening machinery and is mainly used for solving the problems that the vibration frequency of the existing high-frequency vibrating screen is insufficient and can not meet production needs. A multi-section screen mesh is transversely tensed and mounted on a screen mesh bracket in the shape of an arc, two vibrators or vibrating motors are mounted on horizontal and vertical vibrator base plates at the middle part of a vibrating beam, and the combined force action line of vibration passes through the gravity of a screen box. The screen box is connected with a full-amplitude elastic support seat mounted on a bottom frame through four square trunnions, the full-amplitude elastic support seat comprises an upper support saddle, a lower support saddle and rubber springs, and the square trunnions are positioned between the upper and the lower rubber springs; the bottom frame is connected with a foundation through a secondary vibration reduction device. A sealed mud material box is arranged at the feed end of the screen box on the bottom frame. The full-amplitude support high-frequency linear vibrating screen has the characteristics of high vibration frequency, strong vibration intensity, strong capability of producing screened materials and the like. The full-amplitude support high-frequency linear vibrating screen can be widely applied to powder grinding adopting iron ore ball grinders, and precise screening of petroleum drilling mud and other fine mesh grade wet materials, coal carbon and chemical engineering mesh grade materials.

Description

Double amplitude supporting high frequency linear vibratory sieve

Technical field

The utility model belongs to the vibration screening machinery field, mainly relates to the double amplitude supporting high frequency linear vibratory sieve of straight-line oscillation track, dither and screening detailed catalogue sticky material.

Background technology

High frequency shale shaker is the capital equipment of screening detailed catalogue sticky material, because existing high frequency shale shaker is subject to the restriction of structure and mode of vibration, vibration frequency is difficult to improve, and can't realize real dither, so screening efficiency and the production capacity of screening detailed catalogue sticky material vibratory sieve are difficult to improve.Chinese patent " walking-beam type high-frequency vibrating screen ", the patent No. is ZL200720015951.1, has the characteristics such as screening efficiency height and disposal ability are large.Because take up room large and vibrating motor of existence can not be realized the deficiency of straight-line oscillation track screening its development in the field of screening being restricted in walking beam.Chinese patent " linear-vibration walking-beam type high-frequency vibrating screen ", the patent No. is ZL201020010257.2, this screen(ing) machine has a plurality of walking beams, need in force the running parameters such as amplitude, vibration frequency and vibrating direction angle under each walking beam level are adjusted, vibratory sieve is in the situation that dither is difficult to realize the synchronous vibration state of a plurality of walking beams.In order to meet the accurate screening of the detailed catalogue level hygrometric state materials such as iron ore ball mill abrasive dust, oil drilling slurry, coal, chemical industry order stage material, in the urgent need to a kind of real high frequency shale shaker.

Summary of the invention

The purpose of this utility model is to provide a kind of double amplitude supporting high frequency linear vibratory sieve, this vibratory sieve is taked whole straight-line oscillation, the horizontal arc compass screen surface of bearing bracket screen cloth both sides tensioning, and double amplitude elastic bearing principle, the whole vibration resistance of screen(ing) machine is significantly improved, makes the utility model become real high frequency linear vibratory sieve.

The utility model is realized by following measures, mainly by screen frame, compass screen surface, vibrator and vibration damping support device, formed, it is characterized in that: screen frame is by biside plate, discharge gate, screen bracket, backboard, walking beam and crossbeam, through hooked riveting with lock rivet, link together, the horizontal arc tensioning of multistage screen cloth is arranged on screen bracket; Walking beam is arranged on the sieve box side plate of compass screen surface top, the level that two vibrators or vibrating motor are arranged on the walking beam middle part is with on vertical vibrator seat board, the axial line of two vibrators or vibrating motor is vertical with side plate, and vibration force action line is by the center of gravity of screen box; Screen box is connected with the double amplitude elastic supporting seat on being arranged on underframe by four square gudgeons, and described double amplitude elastic bearing seat is comprised of upper bracket, undersetting and upper and lower two rubber springs, and square gudgeon is between upper and lower two rubber springs; Underframe is connected with basis by the secondary vibration absorber.The material feeding end of screen box on underframe, arrange Packed mud hopper, in the mud hopper inside of sealing, is provided with the backgauge stabilier.

In order to increase the intensity of screen bracket, many group bearing diagonal beams are installed in the middle of the I-shaped crossbeam of screen bracket, many vertical band steels of I-shaped crossbeam top configuration, many horizontal band steels are integrally connected with vertical band steel; Described screen cloth is by stainless steel detailed catalogue screen cloth and the synthetic composite screen mesh of stainless steel large-meshed net application Polyurethane.

Vibrator or vibrating motor both sides configure two groups of eccentric blocks, the bias that an adjustable-angle all is set in every group of eccentric block is fast, the adjustment angle of both sides eccentric block group is consistent, changes the adjustment that angle can realize motor statical moment value size, realizes the adjustment of vibratory sieve amplitude.

During vibratory sieve work, two vibrators rotate in the opposite direction, and screen box is with the movement locus dither of straight line, and the rubber spring that the energy of dither passes to the interior bottom of double amplitude elastic support and top absorbs.Unabsorbed vibrational energy is absorbed by the secondary rubber shock-absorbing spring of underframe below again.Order stage material moisture, that contain mud is overflowed the material feeding end that falls into screen box by the mud hopper.Compass screen surface is done straight-line oscillation with vibratory sieve, and the mud material is along compass screen surface to exhaust end jumping, screening.High-frequency and high-intensity vibration can be by water surface tension fragmentation, separation mud and sand, and the material and the water that are less than mesh are fallen chute off the net through screen cloth, and the material that is greater than mesh is discharged by discharge gate, completes the Accurate Classification of order level mud material.Vibrosieve individual layer, bilayer.Single-deck screen is joined the individual layer screen cloth, and double deck screen is joined Double-layer screen.

The beneficial effects of the utility model are, the strong sieve box of vibrating of anti-seismic performance is by the operation of four groups of double amplitude elastic bearings, and vibratory sieve is upwards, downward high frequency vibrating power all has rubber spring to absorb, the dither peak value to vibratory sieve without harm.The rubber spring secondary shock-absorbing system of underframe below can absorb remaining vibration peak again.The axis of vibrator is vertical with sieve box side plate, the horizontal friction of side plate source, and the side plate life-span is long.Carriage, walking beam, backboard, crossbeam are the structure member of high target resistance to shock, and general frame antivibration index performance is high.Can ensure that vibratory sieve is in the smooth working of 2900rpm high frequency vibrating next state.The airtight mud hopper inside of screen box material feeding end arranges the backgauge stabilier, can be by the mud buffering of high flow rate, current stabilization, be inducted into uniformly the material feeding end screen cloth of high-frequency screen, reduce the impact of mud to the material feeding end screen cloth, the life cycle that extends screen cloth.The setting of multistage screen cloth makes to change the screen cloth facility, the screen cloth utilization rate is high.

Vibratory sieve of the present utility model is high based on vibration frequency, oscillation intensity and material screening production capacity large, the characteristics that amplitude and frequency are adjustable.Can be widely used in the accurate screening of the detailed catalogue level hygrometric state materials such as iron ore ball mill abrasive dust, oil drilling slurry, coal, chemical industry order stage material.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model, Fig. 2 is the side view of Fig. 1, Fig. 3 is the floor map of screen bracket, Fig. 4 is the E-E cutaway view of Fig. 3, Fig. 5 and Fig. 6 are the schematic diagrames of double amplitude elastic supporting seat, in figure, 1 is discharge gate, the 2nd, side plate, the 3rd, walking beam, the 4th, vibrator, the 5th, crossbeam, the 6th, screen bracket, the 7th, backboard, the 8th, the screen cloth tensioning plate, the 9th, screen cloth, the 10th, rubber strip, the 11st, hopper, the 12nd, the double amplitude elastic supporting seat, the 13rd, underframe, the 14th, rubber spring, the 15th, the I-shaped crossbeam, the 16th, carriage bearing diagonal group, the 17th, the carriage rubber strip is installed band steel, the 18th, horizontal band steel, the 19th, undersetting, the 20th, rubber spring, the 21st, upper bracket, the 22nd, square gudgeon, direction of arrow A is that mud charging aperture, B are that to overflow the direction, the C that flow to vibratory sieve be that sieve lower reuse mud, D are that the grains of sand of rejecting on screen cloth export to mud.

The specific embodiment

Below in conjunction with accompanying drawing, an embodiment of the present utility model is described.Mainly by screen frame, compass screen surface, vibrator and vibration damping support device, formed.Screen frame, by biside plate 2, discharge gate 1, screen bracket 6, backboard 7, walking beam 3 and crossbeam 5, links together through hooked riveting with lock rivet.Three sections horizontal arc tensionings of screen cloth 9 are arranged on screen bracket 6, through 8 tensionings of both sides tensioning plate, become the drum surface shape, three sections screen clothes are set and are convenient to certain section screen cloth of damage is changed separately.Walking beam 3 is arranged on the sieve box side plate 2 of compass screen surface top, and screen box discharging opening side is by the oblique upper of 45 ° of lines of screen box center of gravity.Two vibrating motors 4 are arranged on the level and vertically disposed vibrator seat board at walking beam 3 middle parts, and the axial line of two vibrating motors 4 is vertical with sieve box side plate, and vibration force action line is by the center of gravity of screen box, and vibrating motor 4 is two-pole machines, revolution 2900rpm.Screen box is connected with the double amplitude elastic supporting seat 12 on being arranged on underframe 13 by four square gudgeons 22.Double amplitude elastic bearing seat 12 is comprised of upper bracket 21, undersetting 19 and upper and lower two rubber springs 20, and square gudgeon 22 is between upper and lower two rubber springs 20.Underframe 13 is connected with basis by ten groups of rubber springs 14, forms the secondary vibration insulating system.The material feeding end of screen box on underframe 13, arrange Packed mud hopper 11, in mud hopper 11 inside of sealing, is provided with the backgauge stabilier.

In order to increase the intensity of screen bracket 6, four groups of bearing diagonal beams 16 are installed in the middle of the I-shaped crossbeam 15 of screen bracket 6, I-shaped crossbeam 15 tops dispose five vertical band steels 17, and vertically band steel 17 connects as one by the horizontal band steel 18 of its top.Described screen cloth 9 is by 160 order stainless steel detailed catalogue screen clothes and the synthetic composite screen mesh of stainless steel large-meshed net application Polyurethane.160 orders are containing husky mud through 1500X2500 area screen cloth 2900rpm and 23g oscillation intensity straight-line oscillation screening, and screening efficiency can reach 98%.Production capacity is large.Vibrating motor 4 both sides configure two groups of eccentric blocks, and the bias that an adjustable-angle all is set in every group of eccentric block is fast, and the adjustment angle of both sides eccentric block group is consistent, change the adjustment that angle can realize motor statical moment value size, realize the adjustment of vibratory sieve amplitude.

Claims

1. a double amplitude supports the high frequency linear vibratory sieve, mainly by screen frame, compass screen surface, vibrator and vibration damping support device, formed, it is characterized in that: screen frame by biside plate (2), discharge gate (1), screen bracket (6), backboard (7), walking beam (3) with crossbeam (5), through hooked riveting with lock rivet, link together, the multistage screen cloth (9) laterally the arc tensioning be arranged on screen bracket and (6) go up;

(3) walking beam is arranged on the sieve box side plate of compass screen surface top and (2) goes up, two vibrators (4) or vibrating motor be arranged on walking beam (3) the level at middle part with on vertical vibrator seat board, two vibrators (4) or the axial line of vibrating motor vertical with side plate, vibration force action line is by the center of gravity of screen box;

Screen box by four square gudgeons (22) be arranged on the double amplitude elastic supporting seat that (13) underframe go up and (12) be connected, (20) (19) (12) described double amplitude elastic bearing seat be comprised of with upper and lower two rubber springs upper bracket (21), undersetting, square gudgeon (22) upper and lower two rubber springs (20) between; (14) (13) underframe be connected with basis by the secondary vibration absorber;

(13) go up the material feeding end of screen box at underframe, Packed mud hopper is set (11), at the mud hopper sealed, (11) be provided with the backgauge stabilier in inside.

2. double amplitude according to claim 1 supports the high frequency linear vibratory sieve, it is characterized in that: (16) screen bracket I-shaped crossbeam (6) middle installation the (15) organize the bearing diagonal beams more, (17) I-shaped crossbeam (15) top configures many vertical band steels, and many horizontal band steels (18) (17) are integrally connected with vertical band steel; (9) described screen cloth is by stainless steel detailed catalogue screen cloth and the synthetic composite screen mesh of stainless steel large-meshed net application Polyurethane.

3. double amplitude according to claim 1 supports the high frequency linear vibratory sieve, it is characterized in that: vibrator (4) or the vibrating motor both sides configure two groups of eccentric blocks, the bias that an adjustable-angle all is set in every group of eccentric block is fast, and the adjustment angle of both sides eccentric block group is consistent.