CN2165937Y - Low-noise oscillating screen - Google Patents
Low-noise oscillating screen Download PDFInfo
- Publication number
- CN2165937Y CN2165937Y CN 93237446 CN93237446U CN2165937Y CN 2165937 Y CN2165937 Y CN 2165937Y CN 93237446 CN93237446 CN 93237446 CN 93237446 U CN93237446 U CN 93237446U CN 2165937 Y CN2165937 Y CN 2165937Y
- Authority
- CN
- China
- Prior art keywords
- plate
- low
- noise
- sieve
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000000452 restraining effect Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 7
- 239000003351 stiffener Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The utility model relates to a low-noise oscillating screen, which is composed of a side plate of a screen box, a screen plate, transverse beams, an oscillation exciter, a rubber spring, a flexible coupling and an electric machine. The low-noise oscillating screen uses the condition that the working principle and the overall structure of the device can not be changed, for decreasing the radiation area of the machine noise as much as possible, for canceling the box body of the oscillation exciter, for changing the shape of the side plate, and for reducing the area of the side plate; the side plate of the box body uses a low-noise composite plate, and adopts a specialized connection mode; the transverse beams all adopt damping oscillation attenuation steel pipes; the screen plate adopts a flexible screen plate with a special structure; 15 to 20 dB (A) of the noise can be reduced, and the strength and the rigidity of the structure can be increased; the low-noise oscillating screen has the advantages of compact structure, light weight, long service life, and energy saving; the low-noise oscillating screen is an ideal low-noise device on site.
Description
The utility model relates to low-noise vibration sieve, is particularly useful for coal separation (ore deposit) engineering.
The vibratory sieve that coal separation ore dressing is both at home and abroad at present used, noise is usually up to 100～110dB(A), the 85dB(A that surpasses country's " industrial enterprise's noise sanitary standard " regulation) or the 90dB(A of enterprise's temporary provisions) index, severe contamination workplace and surrounding environment, influence people's physical and mental health, influenced operating efficiency and safety.In order to reduce noise, also taked some Local treatment measures in recent years, as at the sticking one deck General Purpose Rubber plate of sieve box side plate, for noise reduction has stepped a positive step, but its noise reduction, durability are all relatively poor, can not tackle the problem at its root.
In view of the problem that prior art exists, the purpose of this utility model provides a kind of vibratory sieve with visco-elastic damping material, and it not only makes the vibratory sieve noise reduce, and has increased the strength and stiffness of structure, has improved service life greatly.
The utility model low-noise vibration sieve is made up of sieve box side plate, sieve plate, crossbeam, vibrator, rubber spring, flexible clutch and motor, it is characterized in that: sieve box side plate and stiffener are manufactured with composite plate, and composite plate adopts special connection; The cross bearer and the needle beam that connect symmetrical biside plate are all used the damping vibration attenuation steel pipe; The screen box that is connected into by crossbeam and side plate is provided with several screen frames, the corresponding flexible sieve plate that is assemblied with several specially made structures on the screen frame; The synchromesh gear of vibrator adopts flexible web gear, and the vibrator bearing is added with acoustic hood.
The utility model low-noise vibration sieve, the composite plate that sieve box side plate and stiffener adopt by substrate, damping sheet, restraining plate is bonding forms also available bolt spacing constraint reinforcing.Composite plate adopts bolt and nut to add spacer sleeve, pad connects, and can make damping sheet, restraining plate not bear the tightening force of connecting bolt.All crossbeam damping vibration attenuation steel pipe adopts damping layer covering steel pipe internal-surface to form, and damping layer material can select 9050 for use, also can select LI48 for use.The flexible sieve plate of assembly unit can be used polyurethane material on the screen frame, sieves the sieve plate that different structure and hole are manufactured in requirement by difference, and sieve plate can also be changed separately.Vibrator bearing acoustic hood adopts the composite plate that adds damping to make.
The utility model low-noise vibration sieve, be best suited for coal separation (ore deposit) factory, take special transformation to each parts of vibratory sieve noise source, use viscoelastic damping material and substrate, the composite plate that restraining plate constitutes, excellent noise reduction effect not only, and the intensity and the rigidity of structure have been increased, prior art corresponding to this technical field, noise can reduce by 15～20dB(A), in light weight 15～20%, save power 15～20%, consumable accessory prolongs service life greatly, adopts rubber spring higher more than 4 times than spiral metal spring, and the polyurethane sieve plate structural life-time of employing is higher more than 8 times than punched screens.Adopt the damping vibration attenuation steel pipe to do that crossbeam is done beam strength than channel-section steel and rigidity improves greatly, can stop the crossbeam fracture defect substantially.Reduced fault power time, improved operating efficiency and safety, through on-the-spot industrial experiment, effect is fine, is on-the-spot desirable low noise equipment, has practicality widely.
Description of drawings:
Fig. 1 is the utility model front view;
Fig. 2 is the utility model vertical view;
Fig. 3 is the utility model composite plate structure figure;
Fig. 4 is the bolt connection structure figure of the utility model composite plate;
Fig. 5 is the utility model screening sieve-plate structure figure;
Fig. 6 is the utility model dewatering screen composition that hardens.
Triangle crossbeam 1, sieve box side plate 2, stiffener 3, bolt 4, motor 5, motor cabinet 6, rubber spring 7, sieve plate 8, screen frame 9, cross bearer 10, needle beam 11, vibrator bearing cover 12, flexible clutch 13, eccentric block 14, synchromesh gear 15, screen box 16, power transmission shaft 17, substrate 18, damping sheet 19, restraining plate 20, spacer sleeve 21, bolt pad 22, nut 23, sieve plate hole (crack) 8-1, reinforcement 8-2, screw hole 8-3.
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model low-noise vibration sieve is best suited for coal separation (ore deposit) factory.Under the condition that does not change equipment operation principle and general structure, reduce machine acoustic radiation area as far as possible, cancelled the vibrator casing, reduce the height of sieve box side plate 2, reduce the side plate area by changing side plate 2 shapes.Sieve box side plate 2 and stiffener 3 all uses the low noise composite plates, and composite plate is by substrate 18, damping sheet 19, and restraining plate 20 bonding forming, and reinforce with the constraint of bolt spacing, its damping ratio height responds little after the excited target.Composite plate has two kinds of structures, and as Fig. 3, Fig. 4, substrate 18 is the steel plate of 8～10mm, damping sheet 19, and available 9050 or the LI48 material, thickness is 6～8mm, restraining plate can be with the steel plate of 2～3mm.Composite plate adopts special bolt connection mode, and as shown in Figure 4, substrate contacts with fishplate bar or load-carrying member, damping sheet 19, and restraining plate 20 does not bear connecting bolt 4, the tightening force of nut 24, by pad 22, spacing 21 is transmitted the connecting bolt tightening force.Connect the cross bearer 10 of symmetrical biside plate 2 and the seamless steel pipe that needle beam 11 all adopts damping vibration attenuation, at bonding damping material 9050 of seamless steel pipe inner surface or LI48, thickness is 8～10mm, plays vibration damping, and beam strength rigidity is improved.1 reinforcement effect of triangle crossbeam.Can several screen frames 9 be set by model on the screen box 16 that is connected into by crossbeam and side plate 2, present embodiment is provided with 16 screen frames, and correspondence is assemblied with flexible sieve plate 8 on the screen frame 9, and every area of screening sieve plate is 0.25M
2About, dehydration is 0.075M with every area of sieve plate
2, sieve-plate structure such as Fig. 5, shown in Figure 6 are equipped with reinforcement 8-2 and screw hole 8-3 on each sieve plate, with bolted on screen frame 9, sieve plate 8 can be manufactured with polyurethane material, sieves the sieve plate that different structure and hole 8-1 are made in requirement by difference, and sieve plate 8 can also be changed separately.Support the spring of screen box 16 and select rubber spring 7 alternative metals helical springs for use, can improve the life-span, reduce noise, motor 5 on the motor cabinet is given vibrator by shaft coupling 13 transmitted powers, and vibrator is by eccentric block 14, synchromesh gear 15, power transmission shaft 17, bearing and bearing cage 12 are formed.Adopt flexible web gears to substitute former normal gear with eccentric block 14 coaxial synchromesh gears 15 in the vibrator, not only noise is low, and vibrate little, flexible web gear promptly uses rubber as gear disc, transmit moment of torsion by key and rubber, flexible web uses the oil resistant rubber sulfuration to form, and its Brinell hardness is 60～80.The load because exciter shaft withstands shocks is sent than very noisy, therefore adds acoustic hood 12 at the vibrator bearing, and acoustic hood 12 uses the composite plate that adds damping to manufacture, and reduces the vibration of all non-essentials, thereby reaches the noise reduction purpose.
Claims (6)
1, a kind of low-noise vibration sieve is by sieve box side plate, sieve plate, crossbeam.Vibrator, rubber spring, flexible clutch and motor are formed, and it is characterized in that: sieve box side plate (2) and stiffener (3) are manufactured with composite plate, and composite plate adopts special connection; The cross bearer (10) and the needle beam (11) that connect symmetrical biside plate (2) are all used the damping vibration attenuation steel pipe; The screen box (16) that is connected into by crossbeam (10) and side plate (2) is provided with several screen frames (9), and screen frame (9) is gone up the flexible sieve plate (8) that correspondence is assemblied with several specially made structures; Synchromesh gear in the vibrator (15) adopts flexible web gear, and the vibrator bearing is added with acoustic hood (12).
2, low-noise vibration sieve according to claim 1 is characterized in that: composite plate is by substrate (18), damping sheet (19), and bonding the forming of restraining plate (20), also available bolt spacing constraint is reinforced.
3, low-noise vibration sieve according to claim 1 is characterized in that: all crossbeam damping vibration attenuation steel pipe adopts damping layer covering steel pipe internal-surface to form.
4, low-noise vibration sieve according to claim 1 is characterized in that: screen frame (9) is gone up the flexible sieve plate (8) of assembly unit can use polyurethane material, sieves the sieve plate that different structure and hole are made in requirement by difference, and sieve plate (8) can also be changed separately.
5, low-noise vibration sieve according to claim 1 is characterized in that: composite plate adopts bolt (4) nut (23) to add spacer sleeve (21) pad (22) connection.
6, low-noise vibration sieve according to claim 1 is characterized in that: vibrator bearing acoustic hood (12) adopts the composite plate that adds damping to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237446 CN2165937Y (en) | 1993-08-11 | 1993-08-11 | Low-noise oscillating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237446 CN2165937Y (en) | 1993-08-11 | 1993-08-11 | Low-noise oscillating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2165937Y true CN2165937Y (en) | 1994-05-25 |
Family
ID=33812399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237446 Expired - Fee Related CN2165937Y (en) | 1993-08-11 | 1993-08-11 | Low-noise oscillating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2165937Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443708A (en) * | 2011-12-08 | 2012-05-09 | 葫芦岛锌业股份有限公司 | Device and method for extracting zinc powder from zinc casting floating slag |
| CN106216229A (en) * | 2016-07-28 | 2016-12-14 | 宁夏大学 | Earth and rock separation batch mixer |
-
1993
- 1993-08-11 CN CN 93237446 patent/CN2165937Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443708A (en) * | 2011-12-08 | 2012-05-09 | 葫芦岛锌业股份有限公司 | Device and method for extracting zinc powder from zinc casting floating slag |
| CN106216229A (en) * | 2016-07-28 | 2016-12-14 | 宁夏大学 | Earth and rock separation batch mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725482A (en) | Damping composite type variable rigidity vibration attenuating support for gearbox of wind powered generator | |
| CN2165937Y (en) | Low-noise oscillating screen | |
| CN1098668A (en) | Low-noise vibration sieve | |
| DE2922030A1 (en) | COMBUSTION MACHINE | |
| CN201013820Y (en) | Rubber shock absorber | |
| CN103658023A (en) | Novel single-layer banana sieve | |
| CN201441973U (en) | Novel single banana screen | |
| CN216606038U (en) | Vibration relaxation sieve amplitude stepless regulation device | |
| CN101716991B (en) | Ship high transmission loss base structure | |
| CN214994864U (en) | Novel viscoelastic damping material composite steel plate wall | |
| CN210361787U (en) | Building concrete shaking table | |
| CN201666225U (en) | Damping composite type rigidity-variable vibration-damping support for gear case of wind power generator | |
| CN210766366U (en) | Unit strong anchor prepressing type synchronous displacement telescopic device | |
| CN218638048U (en) | Limiting structure for fixing composite base of ultrahigh pressure cleaning unit | |
| CN219984882U (en) | Thin corrugated lining plate of ball mill | |
| CN2344437Y (en) | Vibration-reducing device for vibration hammer | |
| CN219631490U (en) | Large-block design semi-autogenous mill cylinder composite lining board | |
| CN211924828U (en) | High-pressure pump belt tightness adjusting device of multifunctional combined sewage suction truck | |
| CN104149862B (en) | Bottom plate for engineering machine cab | |
| CN219857138U (en) | High-strength driver's desk head structure | |
| CN218235457U (en) | Combined base | |
| CN217808175U (en) | Elevator car connecting seat | |
| CN211948023U (en) | Bonding steel plate combined structure for bridge reinforcement | |
| CN201441974U (en) | Novel dual-layer banana screen | |
| CN218932741U (en) | High-performance rubber vibration isolator and track system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |