CN203209295U - Scraper type fixed screen - Google Patents
Scraper type fixed screen Download PDFInfo
- Publication number
- CN203209295U CN203209295U CN 201320174759 CN201320174759U CN203209295U CN 203209295 U CN203209295 U CN 203209295U CN 201320174759 CN201320174759 CN 201320174759 CN 201320174759 U CN201320174759 U CN 201320174759U CN 203209295 U CN203209295 U CN 203209295U
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- China
- Prior art keywords
- scraper
- plate
- roller chain
- endless roller
- gravity flow
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Abstract
The utility model discloses a scraper type fixed screen, and belongs to the technical field of screening equipment. The scraper type fixed screen comprises a feed chute, a guide chute, supporting posts, a frame, a drive device, a driving sprocket set, a tension sprocket set, an endless roller chain, scrapers, a screen surface, a tension device and the like. A plurality of inserted plates are fixed into the front of each scraper, in clearance fit with grate bars and inserted among the grate bars of the screen surface. The scraper type fixed screen is low in energy consumption and high in screening efficiency, and the screen surface is not easily blocked.
Description
Technical field
The utility model relates to a kind of gravity flow screen, belongs to the screening plant technical field.
Background technology
Existing screening plant is divided into gravity flow screen and moving screen two big classes, and moving screen comprises roto-siofter, shaker screen and vibratory sieve again.In general, the advantage of moving screen is that screening efficiency is higher, and shortcoming is that complex structure, energy resource consumption are big, produce bigger dust and noise in the course of work.The gravity flow screen working portion maintains static, and is simple in structure, firm, energy resource consumption is few or consumes energy not, generally is used for coarse crushing and broken, and its maximum shortcoming is that screening efficiency is low, bar grizzl(e)y easily stops up.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of scraper-type gravity flow screen, provides that a kind of energy-output ratio is little, screening efficiency is high and the not susceptible to plugging gravity flow screen of compass screen surface.
The utility model is achieved by the following technical solution: a kind of scraper-type gravity flow screen, it comprises feed well, hold post, deflector chute and frame, compass screen surface and scraper component are housed in the described deflector chute, it is characterized in that: described feed well is fixed on the charging aperture of described deflector chute, deflector chute is fixed on the frame by the described post that holds, described compass screen surface comprises a plurality of gratings that be arranged in parallel along the moving direction of scraper component, gapped between the grating, the bottom of grating is connected with many crossbeams, the two ends of crossbeam are fixed on the inboard of described deflector chute, the both sides, inside of described deflector chute respectively are equipped with an endless roller chain, be arranged at intervals with scraper component between the endless roller chain on both sides, scraper component comprises scraper plate, the two ends of scraper plate are fixed on the endless roller chain inboard on both sides, the scraper plate of endless roller chain the first half is close to the last plane of compass screen surface, the two ends of described endless roller chain are installed on the chain wheel set, wherein the chain wheel set of an end is drive sprocket set, and drive sprocket set connects drive unit.
Fixedly there is the suitable plate in a plurality of and described grating gap the front portion of every described scraper plate, and plate inserts between the grating of described compass screen surface.
Described plate is up-small and down-big wedge shape, and the anterior working face of plate is the inclined-plane.
Be connected with riser between described grating and the crossbeam.
The chain wheel set of the other end of described endless roller chain is the tightener sprocket group, connects tensioning apparatus on the tightener sprocket group.
Described drive unit comprises motor, speed changer and decelerator, the main shaft of described drive sprocket set is connected with the output shaft spline of described decelerator, described decelerator adopts Bevel Gear Transmission, the axis of described drive unit and the axis normal of drive sprocket set.
Described compass screen surface is downward-sloping layout from the feeding end of deflector chute to discharge end.
The chain link of described endless roller chain comprises on outer plate, inner plate and bearing pin, the bearing pin roller is housed, and the clear width of endless roller chain is provided with connecting plate, and the two ends of described scraper plate are fixed on the described connecting plate by bolt or pin.
On the described endless roller chain chain guard is installed.
The beneficial effects of the utility model are:
1, by scraper component passing successively to material on compass screen surface, it is more even to make that material distributes at compass screen surface, the screening efficiency height; Regulate the scraper component speed of service by speed changer speed governing or frequency control, can adapt to the requirement of productivity ratio in a big way; Drive unit axis and chain wheel assembly axis normal are arranged, compact conformation, and it is little to take up room.
2, compass screen surface is downward-sloping layout from the feeding end to the discharge end, and the gravity that takes full advantage of material moves on to material along the component with the compass screen surface parallel direction, has reduced energy resource consumption.
3, scrape prelaminar part the wedge shape plate is fixedly arranged, plate inserts between the adjacent grating of compass screen surface, when scraper component was driven the passing material by roller chain, the ubiquitous grating clogging of gravity flow screen be released, effectively overcome to the wedge surface of plate can to the material that is blocked between the grating effectively.
Description of drawings
Further specify with the utility model of embodiment with reference to the accompanying drawings below.
Fig. 1 is the utility model general structure schematic diagram;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the B-B cutaway view of the removal chain guard of Fig. 2;
Fig. 4 is the endless roller chain structural representation;
Among the figure: the 1-feed well; 2-holds post; The 3-deflector chute; The 4-drive sprocket set; The 5-drive unit; The 6-frame; 7-tightener sprocket group; The 8-tensioning apparatus; The 9-chain guard; The 10-endless roller chain; The 11-scraper component; The 12-compass screen surface; 5.1-motor; 5.2-speed changer; 5.3-decelerator; 10.1-outer plate; 10.2-inner plate; 10.3-bearing pin; 10.4-roller; 10.5-connecting plate; 11.1-scraper plate; 11.2-plate; 12.1-grating; 12.2-riser; 12.3-crossbeam.
The specific embodiment
As Fig. 1, Fig. 2, a kind of scraper-type gravity flow screen shown in Figure 3, it comprises feed well 1, hold post 2, deflector chute 3 and frame 6, compass screen surface 12 and scraper component 11 are housed in the described deflector chute 3, it is characterized in that: described feed well 1 is to adopt shaped steel and steel plate to be welded, its underpart is installed in deflector chute 3 feed ends by ring flange, deflector chute holds post 2 and is fixed on the frame 6 by being arranged in four of the left and right sides, the steel plate of 3 liang of side lower parts of deflector chute puts in frame 6, in order to avoid material outwards scatters from both sides.Described compass screen surface 12 comprises a plurality of gratings 12.1 that be arranged in parallel along the moving direction of scraper component 11, gapped between the grating 12.1, the bottom of grating 12.1 is connected with many crossbeams 12.3, the two ends of crossbeam 12.3 are fixed on the inboard of described deflector chute 3, the both sides, inside of described deflector chute 3 respectively are equipped with an endless roller chain 10, be arranged at intervals with scraper component 11 between the endless roller chain 10 on both sides, scraper component 11 comprises scraper plate 11.1, the two ends of scraper plate 11.1 are fixed on endless roller chain 10 inboards on both sides, the scraper plate 11.1 of endless roller chain 10 the first half is close to the last plane of compass screen surface 12, the two ends of described endless roller chain 10 are installed on the chain wheel set, wherein the chain wheel set of an end is drive sprocket set 4, and drive sprocket set 4 connects drive unit 5.
As Fig. 2, shown in Figure 3, fixedly there is the suitable plate 11.2 in a plurality of and described grating 12.1 gaps the front portion of every described scraper plate 11.1, and plate 11.2 inserts between the grating 12.1 of described compass screen surface 12.When endless roller chain 10 and scraper component 11 operations, scraper component 11 is just passed the material on the compass screen surface 12 to deflector chute 3 discharging openings, and wedge shape plate 11.2 bottoms of scraper component 11 are inserted between the two adjacent gratings 12.1.
Described plate 11.2 is up-small and down-big wedge shape, and the anterior working face of plate 11.2 is the inclined-plane, can release the material that is blocked between the grating effectively.
Be connected with riser 12.2 between described grating 12.1 and the crossbeam 12.3, increased the distance between plate 11.2 and the crossbeam 12.3, increase the insertion distance of plate 11.2, prevent from being stuck.
The chain wheel set of the other end of described endless roller chain 10 is tightener sprocket group 7, connects tensioning apparatus 8 on the tightener sprocket group 7, and the tensioning mode can adopt the spiral tensioning.
Described drive unit 5 comprises motor 5.1, speed changer 5.2 and decelerator 5.3, the main shaft of described drive sprocket set 4 is connected with the output shaft spline of described decelerator 5.3, described decelerator 5.3 adopts Bevel Gear Transmission, the axis normal of the axis of described drive unit 5 and drive sprocket set 4, the size of plant width direction reduces greatly, and it is little to take up room.
Described compass screen surface 12 is downward-sloping layout from the feeding end of deflector chute 3 to discharge end, move on to material with the gravity that takes full advantage of material along the component with the compass screen surface parallel direction, resistance when reducing the scraper component operation, the angle of inclination is according to work on the spot space requirement appropriate design.
As shown in Figure 4, the chain link of described endless roller chain 10 comprises on outer plate 10.1, inner plate 10.2 and bearing pin 10.3, the bearing pin 10.3 and roller 10.4 is housed, the friction and wear when roller 10.4 can effectively reduce transmission between the roller chain and sprocket.The clear width of endless roller chain 10 is provided with connecting plate 10.5, and the two ends of described scraper plate 11.1 are fixed on the described connecting plate 10.5 by bolt or pin.
On the described endless roller chain 10 chain guard 9 is installed, chain guard 9 is installed on the deflector chute 3, plays the effect of protection endless roller chain 10.
The utility model operation principle is: material enters deflector chute 3 by feed well 1 and falls on the compass screen surface 12, drive unit 5 drives drive sprocket set 4 and rotates, drive sprocket set 4 drives endless roller chain 10 and tightener sprocket group 7 is rotated together, thereby drives scraper component 11 in compass screen surface 12 motions.Scraper plate 11.1 is constantly passed discharge end to material from deflector chute 3 feed ends, in the material moving process, fall support 6 belows less than the fines in grating gap, enter feed bin or transported by conveying equipment, size falls from discharging opening greater than the coarse fodder in grating gap, transport by conveying equipment, thereby realized separating of fines and coarse fodder, because scraper plate 11.1 is highly certain, once can only pass a part of material, thereby material is more even in compass screen surface 12 distributions, and material is pushed to discharging opening by scraper plate 11.1 from feeding mouth simultaneously certain distance, so material screening efficient height.Compass screen surface 12 is downward-sloping layout from the feeding end to the discharge end, the gravity that can take full advantage of material moves on to material along the component with the compass screen surface parallel direction, reduced the running resistance of scraper component 11, thereby energy-output ratio is little.Scraper plate 11.1 adjacent compass screen surface 12 motions, material can not be stuck between scraper plate 11.1 and the compass screen surface 12, scraper component 11 is in running, and the wedge shape plate 11.2 that its place ahead is inserted in the adjacent grating gap can be extruded the material that is blocked in the grating gap, has effectively overcome the material clogging of bar grizzl(e)y.Drive unit 5 is regulated scraper component 11 speeds of service by speed changer 5.2, thereby adapts to different productivity ratio requirements and reach best screening effect, also can adopt the frequency control way of Frequency Converter Control variable-frequency motor to realize speed governing.
Claims (9)
1. scraper-type gravity flow screen, it comprises feed well (1), hold post (2), deflector chute (3) and frame (6), compass screen surface (12) and scraper component (11) are housed in the described deflector chute (3), it is characterized in that: described feed well (1) is fixed on the charging aperture of described deflector chute (3), deflector chute (3) is fixed on the frame (6) by the described post (2) that holds, described compass screen surface (12) comprises a plurality of gratings (12.1) that be arranged in parallel along the moving direction of scraper component (11), gapped between the grating (12.1), the bottom of grating (12.1) is connected with many crossbeams (12.3), the two ends of crossbeam (12.3) are fixed on the inboard of described deflector chute (3), the both sides, inside of described deflector chute (3) respectively are equipped with an endless roller chain (10), be arranged at intervals with scraper component (11) between the endless roller chain on both sides (10), scraper component (11) comprises scraper plate (11.1), the two ends of scraper plate (11.1) are fixed on endless roller chain (10) inboard on both sides, the scraper plate (11.1) of endless roller chain (10) the first half is close to the last plane of compass screen surface (12), the two ends of described endless roller chain (10) are installed on the chain wheel set, wherein the chain wheel set of an end is drive sprocket set (4), and drive sprocket set (4) connects drive unit (5).
2. scraper-type gravity flow screen according to claim 1, it is characterized in that: fixedly there is the suitable plate (11.2) in a plurality of and described grating (12.1) gap the front portion of every described scraper plate (11.1), and plate (11.2) inserts between the grating (12.1) of described compass screen surface (12).
3. scraper-type gravity flow screen according to claim 2 is characterized in that: described plate (11.2) is up-small and down-big wedge shape, and the anterior working face of plate (11.2) is the inclined-plane.
4. scraper-type gravity flow screen according to claim 1 and 2 is characterized in that: be connected with riser (12.2) between described grating (12.1) and the crossbeam (12.3).
5. scraper-type gravity flow screen according to claim 1, it is characterized in that: the chain wheel set of the other end of described endless roller chain (10) is tightener sprocket group (7), tightener sprocket group (7) goes up and connects tensioning apparatus (8).
6. scraper-type gravity flow screen according to claim 1, it is characterized in that: described drive unit (5) comprises motor (5.1), speed changer (5.2) and decelerator (5.3), the main shaft of described drive sprocket set (4) is connected with the output shaft spline of described decelerator (5.3), described decelerator (5.3) adopts Bevel Gear Transmission, the axis normal of the axis of described drive unit (5) and drive sprocket set (4).
7. scraper-type gravity flow screen according to claim 1, it is characterized in that: described compass screen surface (12) is downward-sloping layout from the feeding end of deflector chute (3) to discharge end.
8. scraper-type gravity flow screen according to claim 1, it is characterized in that: the chain link of described endless roller chain (10) comprises on outer plate (10.1), inner plate (10.2) and bearing pin (10.3), the bearing pin (10.3) roller (10.4) is housed, the clear width of endless roller chain (10) is provided with connecting plate (10.5), and the two ends of described scraper plate (11.1) are fixed on the described connecting plate (10.5) by bolt or pin.
9. scraper-type gravity flow screen according to claim 1 is characterized in that: chain guard (9) is installed on the described endless roller chain (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174759 CN203209295U (en) | 2013-04-10 | 2013-04-10 | Scraper type fixed screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174759 CN203209295U (en) | 2013-04-10 | 2013-04-10 | Scraper type fixed screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203209295U true CN203209295U (en) | 2013-09-25 |
Family
ID=49198867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320174759 Expired - Lifetime CN203209295U (en) | 2013-04-10 | 2013-04-10 | Scraper type fixed screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203209295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014475A (en) * | 2014-05-08 | 2014-09-03 | 江苏韦欧机械有限公司 | Classifying combined device |
-
2013
- 2013-04-10 CN CN 201320174759 patent/CN203209295U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014475A (en) * | 2014-05-08 | 2014-09-03 | 江苏韦欧机械有限公司 | Classifying combined device |
| CN104014475B (en) * | 2014-05-08 | 2016-03-30 | 江苏韦欧机械有限公司 | A kind of graded combination equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |