CN1669673A - Novel vibrating screen based on multi-motor frequency conversion excitation - Google Patents
Novel vibrating screen based on multi-motor frequency conversion excitation Download PDFInfo
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- CN1669673A CN1669673A CN 200510020704 CN200510020704A CN1669673A CN 1669673 A CN1669673 A CN 1669673A CN 200510020704 CN200510020704 CN 200510020704 CN 200510020704 A CN200510020704 A CN 200510020704A CN 1669673 A CN1669673 A CN 1669673A
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Abstract
The invention relates to a new jigging screen based on the multi-motor frequency-changing exciting, which primarily comprises screen box, exciting apparatus and chassis, wherein the screen box set on the chassis through the spacer spring, characterized in that the exciting apparatus uses three or more rectangle or short exciting motors setting on the upper, middle or lower of the screen box, each exciting motor has different eccentric center qualities according to the actual need, the exciting motors can synchronous operate stably. The invention uses the frequency-changing apparatus to adjust the exciting rotary speed, which can meet the requirements of different behaviors. When the exciting motors operating stably, it can keep only one motor working and shut the rest, and the jigging screen can also move in a needed track.
Description
Technical field
The present invention relates to the vibratory sieve of material screening and conveying, comprise the vibratory sieve that uses in the industry department operations such as oil, gas drilling, ore dressing, coal separation, chemical industry, medicine, food, non-ferrous metal, transmission.
Background technology
Domestic and international employed vibratory sieve normally is made up of screen box, vibrator and base at present.Two eccentric shafts that vibrator comprises have adopted gear, synchronous band etc. to force Synchronous Transmission, or adopt two shock electric machine motor synchronizing transmissions to realize exciting.Because the exciting force that two eccentric shafts produce is not enough to satisfy the demand of the vibratory sieve of big cover surface to exciting force, therefore a kind of multiaxis motor synchronizing balanced elliptical shale shaker has been proposed in patent 00259925.2, can adopt the eccentric shaft more than three and three, every by a motor-driven, but this structure has proposed new requirement to the structure of present shock electric machine.In patent 02221465.8, a kind of many shock electric machines motor synchronizing balanced elliptic, linear vibrating screen have been proposed, its vibrator adopts four or more even number shock electric machine to be installed in the appropriate location of screen box both sides symmetrically, angle by shock electric machine and sieve box side plate in the change vibrator can obtain the different elliptic motion of ovality, become elliptic motion, rectilinear motion, the straight-line vibratory sieve of change.Although the self-synchronizing vibrating screen of this type sieve and the bi-motor exciting of present use specific energy mutually obtains bigger exciting force, screen box is stressed relatively reasonable, and intensity and life-span can obtain raising to a certain degree, but also has certain limitation, for example excited frequency is non-adjustable, and mud splashes influences environmental protection etc.
Summary of the invention
The object of the present invention is to provide the novel vibrating screen based on multi-motor frequency conversion excitation, this vibratory sieve can produce bigger exciting force, stressed more even, and simple in structure, energy-conserving and environment-protective, with low cost.
For reaching above-mentioned technical purpose, the present invention takes following technical scheme.
Novel vibrating screen based on multi-motor frequency conversion excitation, mainly form by screen box, vibrator and base, screen box is bearing on the base by isolation spring, it is characterized in that, vibrator adopts microscler or brachmorphy shock electric machine more than three or three to be installed in the appropriate location of screen box top or screen box middle part, bottom, each shock electric machine can have different eccentric mass according to actual needs, and three or three above shock electric machines can be realized the motor synchronizing steady running.
The shock electric machine of vibrator of the present invention can be installed between the screen cloth at screen box middle part, so screen cloth can be installed bilayer or multilayer, serial or parallel connection.
On screen box, also can be added with case lid, prevent that mud or other liquid phase from splashing, play environmental-protection function.
The present invention adopts converter plant to adjust the exciting rotating speed, to adapt to the demand of different operating modes.After the shock electric machine steady running, can only keep the electrical power of one or less number as required and close all the other shock electric machines, vibratory sieve still can be realized required movement locus, reaches energy-conservation simultaneously and prolongs the motor effect in service life.
Compared with prior art, the invention has the advantages that:
(1) compares with the self-synchronizing vibrating screen of many motors exciting with the bi-motor exciting of present use, can be when bigger exciting force be provided, change excited frequency and relevant excitation parameter to adapt to different working condition requirements, the transporting velocity etc. of screening effect, treating capacity, material is all improved greatly;
(2) adopt two or many shock electric machines to be installed in screen box top or screen box middle part, bottom, make the stressed more reasonable of screen box, can get a greater increase the service life of vibratory sieve;
(3) adopt standardized shock electric machine, simple in structure, easy for installation, with low cost, can realize the low maintenance even the non-maintaining running of vibratory sieve;
(4) bilayer or multilayer screen cloth, serial or parallel connection screen cloth can be installed, make screening effect better;
(5) in use can close one or more shock electric machine as required, reach energy-conservation and prolong the motor purpose in service life.
Description of drawings
Accompanying drawing 1 is to adopt three microscler shock electric machines to be installed in the structural representation at screen box top;
Accompanying drawing 2 is vertical views of accompanying drawing 1;
Accompanying drawing 3 is to adopt three brachmorphy shock electric machines to be installed in the structural representation at screen box middle part;
Accompanying drawing 4 is vertical views of accompanying drawing 3;
Specific embodiments
Further specify the present invention below in conjunction with accompanying drawing.
Embodiment one:
Referring to accompanying drawing 1, accompanying drawing 2.Novel vibrating screen based on many motors exciting pattern mainly is made up of screen box 1, vibrator 2 and base 3, and screen box 1 is installed on the base by isolation spring 4, and vibrator adopts three microscler shock electric machine A, B, C to be installed in the appropriate location at screen box 1 top.Each shock electric machine can have different eccentric mass according to actual needs.Shock electric machine B, C rotate in the same way, and the exciting force that make a concerted effort and the shock electric machine A of the exciting force that is produced produces synthesizes the exciting force of vibratory sieve.The direction of rotation of the rotation direction of shock electric machine A and shock electric machine B, C.
The vibratory sieve that this kind mode is installed can produce bigger exciting force under the situation that does not improve excited frequency, make screening, carry effect better.
Embodiment two:
Referring to accompanying drawing 3, accompanying drawing 4.Novel vibrating screen based on many motors exciting pattern mainly is made up of screen box 1, vibrator 2 and base 3, screen box 1 is installed on the base by isolation spring 4, vibrator adopts three brachmorphy shock electric machine A, B, C to be installed in the appropriate location at the middle part (between upper strata screen cloth 6 and the lower screen 5) of screen box 1, the protective cover 7 of vibrator is used to prevent the filtrate contamination vibrator of upper strata screen cloth 6, and each shock electric machine can have different eccentric mass according to actual needs.Shock electric machine B, C rotate in the same way, and the exciting force that make a concerted effort and the shock electric machine A of the exciting force that is produced produces synthesizes the exciting force of vibratory sieve.The direction of rotation of the rotation direction of shock electric machine A and shock electric machine B, C.
The vibratory sieve that this kind mode is installed can produce bigger exciting force, and need not change excited frequency.Be excited at the same time motor and be installed between the two-layer screen cloth, make the screening effect of every layer of screen cloth can both be even more ideal.And vibratory sieve is stressed more even, all gets in the intensity of vibratory sieve and service life further to arrive raising.
Claims (4)
1 novel vibrating screen based on multi-motor frequency conversion excitation, mainly form by screen box (1), vibrator (2) and base (3), screen box (1) is bearing on the base (3) by isolation spring (4), it is characterized in that, vibrator (2) adopts microscler or brachmorphy shock electric machine more than three or three to be installed in the appropriate location of screen box (1) top or screen box middle part, bottom, each shock electric machine can have different eccentric mass according to actual needs, and three or three above shock electric machines can be realized the motor synchronizing steady running.
2 vibratory sieves as claimed in claim 1 is characterized in that, the shock electric machine of described vibrator can be installed between the screen cloth (6), (5) at screen box (1) middle part, and described screen cloth is bilayer or multilayer, but serial or parallel connection.
3 vibratory sieves as claimed in claim 1 is characterized in that, are added with protective cover (7) on the described vibrator.
4 vibratory sieves as claimed in claim 1 is characterized in that, are added with case lid on screen box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020704 CN1669673A (en) | 2005-04-11 | 2005-04-11 | Novel vibrating screen based on multi-motor frequency conversion excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020704 CN1669673A (en) | 2005-04-11 | 2005-04-11 | Novel vibrating screen based on multi-motor frequency conversion excitation |
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| CN1669673A true CN1669673A (en) | 2005-09-21 |
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| CN 200510020704 Pending CN1669673A (en) | 2005-04-11 | 2005-04-11 | Novel vibrating screen based on multi-motor frequency conversion excitation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909061A (en) * | 2014-04-22 | 2014-07-09 | 西南石油大学 | Translation elliptical vibrating screen with three short shock excitation motors |
| CN108472689A (en) * | 2015-12-08 | 2018-08-31 | 株式会社近畿 | The method for controlling of operation of vibrating sieving machine |
| CN112604955A (en) * | 2020-11-27 | 2021-04-06 | 东北大学 | Three-machine frequency-doubling self-synchronous driving variable-track vibrating screen and parameter determination method |
-
2005
- 2005-04-11 CN CN 200510020704 patent/CN1669673A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909061A (en) * | 2014-04-22 | 2014-07-09 | 西南石油大学 | Translation elliptical vibrating screen with three short shock excitation motors |
| CN108472689A (en) * | 2015-12-08 | 2018-08-31 | 株式会社近畿 | The method for controlling of operation of vibrating sieving machine |
| CN108472689B (en) * | 2015-12-08 | 2021-09-21 | 株式会社近畿 | Operation control method of vibrating screen machine |
| CN112604955A (en) * | 2020-11-27 | 2021-04-06 | 东北大学 | Three-machine frequency-doubling self-synchronous driving variable-track vibrating screen and parameter determination method |
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