CN204170922U - Automatic anti-blocking rotary screen - Google Patents
Automatic anti-blocking rotary screen Download PDFInfo
- Publication number
- CN204170922U CN204170922U CN201420584367.8U CN201420584367U CN204170922U CN 204170922 U CN204170922 U CN 204170922U CN 201420584367 U CN201420584367 U CN 201420584367U CN 204170922 U CN204170922 U CN 204170922U
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- CN
- China
- Prior art keywords
- hole
- foreign steamer
- rotary screen
- groove
- blocking rotary
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of automatic anti-blocking rotary screen, solve flexible cleaning gear not wear-resistant, the problem of the tamper in space can not be cleared up, its drip irrigation device is a kind of automatic anti-blocking rotary screen, comprise frame, sieve nest, described sieve nest is connected with anti-block apparatus, anti-block apparatus and sieve nest engagement, sieve nest circumference is provided with groove, screen cloth is provided with in described groove, anti-block apparatus comprises interior wheel and foreign steamer, inside take turns and offer the standing groove of opening towards foreign steamer, foreign steamer is rotatably set in interior wheel, on foreign steamer, circumference is provided with at least one through hole, groove, through hole can be communicated with standing groove, inside take turns back material hole end face offering and is communicated with standing groove, described back material hole is connected with negative pressure device, the utility model has the advantages that automatic anti-blocking rotary screen is more wear-resistant, tamper can not disperse in atmosphere.
Description
Technical field
The utility model relates to a kind of screening plant, and in particular, it relates to a kind of automatic anti-blocking rotary screen.
Background technology
Roto-siofter utilizes exactly to rotate various raw material and various primary product to sort through screen cloth and is divided into several grades by raw meal particle size size, or by removals such as moisture wherein, impurity, then plant equipment used when carrying out next step processing and improve the quality of product.
Roto-siofter working portion is cylindrical shape, and whole sieve turns round around tubular axis.Material feeds from one end of cylinder, and thin rank material passes through from the sieve aperture of tubular working surface, and coarse-grained material is discharged from the other end of cylinder.The rotating speed of drum sieve is very low, stable working, dynamic equilibrium are good.But its sieve aperture easily blocks, screening efficiency is low, and work area is little, and productivity ratio is low.
At present, application number be 200920241180 Chinese patent disclose a kind of automatic anti-blocking rotary screen, sieve nest anti-block apparatus comprises the flexibility coordinated with the sieve aperture on sieve nest and cleans gear, and flexible cleaning gear is in tandem in axle.If be sized material because of moisture content is excessive or granule materials be stuck in sieve aperture block sieve aperture time, the flexibility of the rubber matched with sieve aperture in sieve nest rotation process cleans gear can clear up blocked sieve aperture in time.Although this sieve nest anti-block apparatus solves the problem of clearing up each sieve aperture according to the order of sequence, but because sieve aperture is meticulous, the rubber teeth of cleaning gear will insert in sieve aperture to be cleared up, the erosion wear of rubber teeth can be caused, namely tooth and sieve aperture can be swiped, cause the stress of gear surface local to concentrate, and be constantly cut and pull apart into molecule, decrease the service life of automatic anti-blocking rotary screen.If flexible cleaning gear is chosen excessive, because flexibility cleaning gear cross sectional shape is circular, and settle the groove of screen cloth to be irregular, flexible cleaning gear can be caused cannot to clear up the space of screen cloth and groove.If flexible cleaning gear is chosen too small, flexible cleaning gear can collide with groove walls, causes the damage of flexible adjustment device.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of wear-resistant, the automatic anti-blocking rotary screen that cleaning effect is good.
For achieving the above object, the utility model provides following technical scheme: a kind of automatic anti-blocking rotary screen, comprise frame, sieve nest, described sieve nest is connected with anti-block apparatus, described anti-block apparatus and sieve nest engagement, described sieve nest circumference is provided with groove, screen cloth is provided with in described groove, described anti-block apparatus comprises interior wheel and foreign steamer, inside take turns and offer the standing groove of opening towards foreign steamer, foreign steamer is rotatably set in interior wheel, on foreign steamer, circumference is provided with at least one through hole, described groove, through hole can be communicated with standing groove, describedly interiorly take turns back material hole end face offering and is communicated with standing groove, described back material hole is connected with negative pressure device.
By adopting technique scheme: sieve nest passes through rotation, the anti-block apparatus be engaged on sieve nest is driven to rotate, when sieve nest engages with anti-block apparatus, groove, projection, through hole and standing groove form a passage, tamper in screen cloth can be drawn out by negative pressure device by anti-block apparatus, anti-block apparatus without the need to screen contact, decrease frictional dissipation.
As preferably, described through hole is outward extended with projection along the center of circle, and described protruding both ends open is hollow form, described projection and fit depressions.
By adopting technique scheme: when sieve nest engages with anti-block apparatus, protruding outer wall and groove inner wall fit tightly, formed between groove and projection and can not allow the confined space of air leak, now groove, projection, through hole and prevent groove from connecting into passage, negative pressure device works, and internally wheel is bled, and makes to form negative pressure in passage, suction function is on screen cloth, and confined air chien shih tamper can not be distributed to passage outside by the space between protruding outer wall and the inwall of groove.
As preferably, between described back material hole and negative pressure device, be fixedly connected with tracheae.
By adopting technique scheme: the tamper on described screen cloth is sucked out under the effect of negative pressure device, by back material hole, shifts away from tracheae, and tracheae makes the air in passage enter negative pressure device.The price economy of tracheae is practical simultaneously, and seamless iron pipe of comparing, reduces production cost.
As preferably, described foreign steamer and interior take turns between be embedded with two ball bearings, described two ball bearings are positioned at takes turns two ends.
By adopting technique scheme: the friction mode between interior wheel and foreign steamer becomes the rolling friction of ball bearing from the interior sliding friction taking turns outer wall and foreign steamer inwall, due to the feature of ball bearing frame for movement, reduce and interiorly take turns frictional force between foreign steamer, decrease interior wheel and wearing and tearing between foreign steamer, add the transmission efficiency of rotary motion, add the stability of transmission, add the service life of automatic anti-blocking rotary screen.
As preferably, described foreign steamer is made up of anti-rubber milling.
By adopting technique scheme: the projection on foreign steamer and the engagement of sieve nest, foreign steamer is made up of anti-rubber milling, and the high resiliency of rubber makes that impact during engagement alleviates, noise reduction.
As preferably, described negative pressure device is axial flow blower.
By adopting technique scheme: gas kinetic energy is converted to pressure energy by axial flow blower, for automatic anti-blocking rotary screen provides negative pressure, by tamper sucking-off.
As preferably, described interior wheel offers central through hole, and the hole wall of described central through hole has keyway.
By adopting technique scheme: the back material hole on interior wheel connects negative pressure device by tracheae, and stationary spindle is fixedly connected in frame, inside takes turns and is set on stationary spindle, and inside taking turns is that key is connected in axle.Inside take turns and do not rotate, thus tracheae can not cause the accident around stationary spindle rotation.
Compared with prior art the utility model has the following advantages: automatic anti-blocking rotary screen is more wear-resistant, and cleaning effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is sectional view one of the present utility model;
Fig. 3 is the A portion enlarged diagram shown in Fig. 2;
Fig. 4 is sectional view two of the present utility model;
Fig. 5 is the A-A sectional view shown in Fig. 4.
In figure: 1, foreign steamer; 2, interiorly to take turns; 3, through hole; 4, central through hole; 5, keyway; 6, standing groove; 7, back material hole; 8, protruding; 9, groove; 10, ball bearing; 11. stationary spindles; 12, screen cloth; 13, power transmission shaft; 14, sieve nest; 15, anti-block apparatus; 16, mounting groove; 17, tracheae; 18, axial flow blower.
Detailed description of the invention
Referring to figs. 1 through Fig. 5, the utility model is described further.
As shown in Figure 1, a kind of automatic anti-blocking rotary screen, comprises anti-block apparatus 15, sieve nest 14, and sieve nest 14 is arranged on power transmission shaft 13, and the sidewall of described sieve nest 14 has the groove 9 be evenly distributed in circumference, be provided with screen cloth 12 in groove 9.As shown in Figure 4, anti-block apparatus 15 comprises foreign steamer 1 and interiorly takes turns 2, and central through hole 4 is offered at 2 end face centers of inside taking turns, and central through hole 4 hole wall offers keyway 5, inside takes turns 2 and is set on stationary spindle 11 by central through hole 4, and inside taking turns 2 with stationary spindle 11 is that key is connected.Stationary spindle 11 is arranged on the position corresponding to power transmission shaft 13, and sieve nest 14 is engaged with anti-block apparatus 15, and stationary spindle 11 is arranged in frame by interference fit.As shown in Figure 5, inside take turns on 2 and foreign steamer 1 and be respectively arranged with corresponding mounting groove 16, two mounting grooves 16 are formed with the accommodating chamber supplying the embedded placement of ball bearing 10, the inner ring of ball bearing 10 is by instrument and with the method cold charge of hammering in interior mounting groove 16 of taking turns on 2, foreign steamer 1 is made up of anti-rubber milling, foreign steamer 1 is socketed on ball bearing 10 by the high resiliency of anti-rubber milling, the sealing in increasing between wheel 2 and foreign steamer 1.Because interior 2 keys of taking turns are connected on fixing stationary spindle 11, within institute, wheel 2 is fixed and does not rotate, and inside take turns 2 and can be relatively rotated by ball bearing 10 with foreign steamer 1, the rotation of sieve nest 14 can drive the foreign steamer 1 of the anti-block apparatus 15 be engaged on sieve nest 14 to rotate.Inside take turns 2 and offer the standing groove 6 of opening towards foreign steamer 1, foreign steamer 1 circumference offers equally distributed through hole 3, and through hole 3 is outward extended with protruding 8, and protruding 8 is one-body molded with foreign steamer 1.As shown in Figure 2, described groove 9, projection 8, through hole 3 can be communicated with standing groove 6.Inside take turns 2 end faces and offer the back material hole 7 being communicated with standing groove 9, back material hole 7 is communicated with standing groove 6, negative pressure device connects back material hole 7 by tracheae 17, negative pressure device employing model is the axial flow blower 18 of EG-2A-2, the EG-2A-2 axial flow blower 18 of this model is that nine continent general gentle breeze machine Co., Ltds produce, axial flow blower 18 is prior art, and therefore not to repeat here.
When automatic anti-blocking rotary screen works, sieve nest 14 rotates under the drive of power transmission shaft 13, groove 9 on sieve nest 14 engages with the projection 8 of anti-block apparatus 15, sieve nest 14 rotate through groove 9 with protruding 8 be meshed and transmitted on anti-block apparatus 15, because interior wheel 2 key of anti-block apparatus 15 is connected on the stationary spindle 11 that maintains static, within institute, wheel 2 is fixed and does not rotate, be connected with ball bearing 10 between the interior wheel 2 of anti-block apparatus 15 and foreign steamer 1, the rotation of sieve nest 14 can drive the rotation of anti-block apparatus 15 foreign steamer 1.Tamper is there is in the sieve aperture of screen cloth 12, when the groove 9 corresponding to screen cloth 12 turns to and protruding 8 positions of engaging around power transmission shaft 13, as shown in Figure 3, groove 9 on sieve nest 14, protruding 8, through hole 3 is communicated with fixed standing groove 6, form a passage, one end of passage is screen cloth 12 blocked in groove 9, the other end is connected with negative pressure device by back material hole 7, axial flow blower 18 opens work, form negative pressure in standing groove 6 and then cause formation negative pressure in passage, the absolute pressure of moving air is less than the outer absolute pressure with absolute altitude of screen cloth 12, powerful suction is produced to the tamper on screen cloth, thus tamper is separated with screen cloth 12, realize the effect of cleaning.
The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. an automatic anti-blocking rotary screen, comprise frame, sieve nest, described sieve nest is connected with anti-block apparatus, described anti-block apparatus and sieve nest engagement, described sieve nest circumference is provided with groove, screen cloth is provided with in described groove, it is characterized in that: described anti-block apparatus comprises interior wheel and foreign steamer, described interior wheel offers the standing groove of opening towards foreign steamer, described foreign steamer is rotatably set in interior wheel, on foreign steamer, circumference is provided with at least one through hole, described groove, through hole can be communicated with standing groove, describedly interiorly take turns back material hole end face offering and is communicated with standing groove, described back material hole is connected with negative pressure device.
2. automatic anti-blocking rotary screen according to claim 1, is characterized in that: described through hole is outward extended with projection along the center of circle, and described protruding both ends open is hollow form, described projection and fit depressions.
3. automatic anti-blocking rotary screen according to claim 1, is characterized in that: be fixedly connected with tracheae between described back material hole and negative pressure device.
4. automatic anti-blocking rotary screen according to claim 1, is characterized in that: described foreign steamer and interior take turns between be embedded with two ball bearings, described two ball bearings are positioned at takes turns two ends.
5. automatic anti-blocking rotary screen according to claim 1, is characterized in that: described foreign steamer is made up of anti-rubber milling.
6. automatic anti-blocking rotary screen according to claim 1, is characterized in that: described negative pressure device is axial flow blower.
7. automatic anti-blocking rotary screen according to claim 1, is characterized in that: describedly interiorly take turns the central through hole offering and coordinate with stationary spindle, and the hole wall of described central through hole has keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584367.8U CN204170922U (en) | 2014-10-10 | 2014-10-10 | Automatic anti-blocking rotary screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584367.8U CN204170922U (en) | 2014-10-10 | 2014-10-10 | Automatic anti-blocking rotary screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204170922U true CN204170922U (en) | 2015-02-25 |
Family
ID=52559758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420584367.8U Expired - Fee Related CN204170922U (en) | 2014-10-10 | 2014-10-10 | Automatic anti-blocking rotary screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204170922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114885A (en) * | 2017-12-22 | 2018-06-05 | 东北农业大学 | Rotation shake formula grain cleaning machine |
-
2014
- 2014-10-10 CN CN201420584367.8U patent/CN204170922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114885A (en) * | 2017-12-22 | 2018-06-05 | 东北农业大学 | Rotation shake formula grain cleaning machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20201010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |