CN201807540U - Spiral tooth type fire coal sieving machine - Google Patents
Spiral tooth type fire coal sieving machine Download PDFInfo
- Publication number
- CN201807540U CN201807540U CN2010205432846U CN201020543284U CN201807540U CN 201807540 U CN201807540 U CN 201807540U CN 2010205432846 U CN2010205432846 U CN 2010205432846U CN 201020543284 U CN201020543284 U CN 201020543284U CN 201807540 U CN201807540 U CN 201807540U
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- coal
- spiral tooth
- tooth
- screening machine
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Abstract
The utility model relates to a spiral tooth type fire coal sieving machine, comprising an allocation feeding port, a discharge hole, a machine case of a coarse coal and sundries outlet, a rotating shaft which penetrates through the machine case and is arranged transversely, a rotating barrel which is arranged in the machine case and is connected with the rotating shaft, a rotating shaft driving mechanism which is connected with one end of the rotating shaft and consists of a motor and a speed reducer, bearing blocks which are respectively arranged at two ends of the rotting shaft, and a rubber vibration damper arranged below the bearing block. Spiral tooth impellers are axially arranged on the rotating barrel, the spiral tooth impeller consists of a toothed ring, radial arc spiral teeth which are uniformly distributed on the toothed ring by bolts and a crescent circumferential cog which is arranged at the inner side of the root part of the spiral tooth; the arc spiral tooth is provided with a trapezoid cross section, the toothed edge at the inner side of the spiral tooth is composed of a row of concave arcs which are connected smoothly in a transition way. The spiral tooth type fire coal sieving machine is particularly suitable for being used as fire coal sieving equipment in a thermal power plant, and has the characteristics of high working efficiency, good sieving effect, low equipment working noise, low maintenance cost and long service life, and is convenient to replace worn parts.
Description
Technical field
The utility model relates to coal-fired screening plant, is specifically related to the coal-fired screening machine of a kind of rotary teeth type.
Background technology
The thermal power plant need use screening machine that used fire coal is sieved, to remove super large lump coal in the fire coal and the foreign material of carrying secretly.At present, the coal-fired preferably screening plant of power plant's result of use is the coal-fired screening machine of rotary teeth type, and its adopts and revolves the tingia wheel coal stream that enters in the box-shaped casing is tackled, and sieves out coarse coal and carries foreign material secretly.Because the work characteristics of this kind equipment is to drop on screening machine under the mode of coal stream with freely falling body to revolve on the tingia wheel, revolving the tingia wheel is subjected to coal stream impact forces bigger, the noise of vibration equipment and generation is strong, and the maintenance of screening machine is relative with working life shorter the same period, part replacement cost height.In addition, the tooth pitch of the coal-fired screening machine of existing rotary teeth type is adjusted inconvenient, when the bigger fire coal of humidity is sieved, revolves the easily sticking coal of tooth, influence screening effect, also is that present rotary teeth type fire coal screening machine needs the major issue that solves in design.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of high efficiency, that screening effect is good, the equipment operating noise is little, easily worn part is changed is convenient, maintenance cost is low, the coal-fired screening machine of the rotary teeth type of long service life.
The purpose of this utility model also is to solve the problem that space width adjustment is inconvenient to reach easily sticking coal of revolving, to improve screening machine required and contained relatively the bigger ature of coal of moisture to different screen sizes adaptive capacity.
The technical scheme that realizes above-mentioned purpose is: the coal-fired screening machine of a kind of rotary teeth type, it is included in top the side direction charging aperture is set, the casing of discharging opening and coarse coal and miscellaneous object outlet is set in the lower end, in described casing, be provided with dustproof check apron in the charging aperture place, run through casing horizontal turning cylinder is arranged, placing links to each other in the casing and with described turning cylinder is connected to rotary barrel, link to each other with an end of described turning cylinder and to be connected to the rotating shaft driving mechanism of forming by motor and decelerator, two ends at described turning cylinder are respectively fitted with bearing block, and the rubber damping device is installed below each bearing block; Axially-aligned has the tingia of revolving wheel on rotary barrel, this revolve the tingia wheel by be mounted on through key on the rotary barrel ring gear be connected the radial strut that is distributed on the ring gear through bolt and revolve tooth and place the circumferential attached tooth of crescent that arc revolves tooth root portion inboard to form; The concave arc that the inner tines limit that described arc revolves tooth is joined by row's smooth transition is formed.
The technical solution of the utility model also comprises: described rubber damping device is by the base of horizontal, form through the be connected cover body that places the base top and the high density block rubber that is arranged in the cover body of two ends connecting bolt; Between described each ring gear, be provided with and revolve space width adjustment spacer; The cross section that described arc revolves tooth is trapezoidal.
The utility model adopts and revolves tingia wheel screening structure, and device structure is simple, high efficiency, screening good impurity removing effect.
The utility model is by the configuration vibration absorber and have the structural design that the arc of attached tooth revolves tooth, can effectively alleviate coal and flow down the impact forces of process to equipment, reduces the vibration and the noise of equipment, improves the working life of screening machine.And the setting of attached tooth not only can alleviate the direct impact to cylinder of coal stream, also has simultaneously to make to fall into the foreign material that revolve tooth root portion and enter the effect of foreign material passage smoothly along circumferentially dishing out, and can effectively improve impurity-eliminating effect.
The utility model will revolve the tingia wheel and be designed to modular structure, be convenient to the maintenance and the replacing of easily worn part, help reducing the use and the maintenance cost of equipment.
The utility model revolves space width by the spacer adjustment that is provided with, and revolves the easy to adjust of space width, is convenient to satisfy different grain size screening requirement.
The utility model is arranged to trapezium structure with the cross section that arc revolves tooth, meets fluid flow characteristics, can effectively avoid revolving the sticking coal of tooth, thereby improves the conformability of screening machine to the bigger fire coal of humidity.
Description of drawings
Fig. 1 is that the coal-fired screening machine structure of this rotary teeth type master looks schematic diagram;
Fig. 2 is the coal-fired screening machine structure of this a rotary teeth type schematic side view;
Fig. 3 be the coal-fired screening machine of this rotary teeth type revolve tingia wheel construction front view;
Fig. 4 is that the tingia of revolving of the coal-fired screening machine of this rotary teeth type is taken turns sectional view;
Fig. 5 is the rubber damping apparatus structure schematic diagram of the coal-fired screening machine of this rotary teeth type;
Fig. 6 is that the tingia of revolving of the coal-fired screening machine of this rotary teeth type is taken turns the assembly structure schematic diagram;
Fig. 7 is that the arc of the coal-fired screening machine of this rotary teeth type revolves the tooth front view;
Fig. 8 is the A-A profile of Fig. 7.
The specific embodiment
In conjunction with the accompanying drawings the specific embodiment of the present utility model is described.
As accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, the coal-fired screening machine of this rotary teeth type has box-shaped casing 4, and matching at the top and the coal-fired belt conveyer of casing 4 is equipped with side direction charging 1, and there is dustproof check apron 5 a mouthful inboard that is assemblied in charging aperture 1.Lower end at casing 4 is provided with bucket shape discharging opening 2 in the rear portion, bucket shape coarse coal and miscellaneous object outlet 3 are set in the front portion.Run through casing in the middle part of casing 4 horizontal turning cylinder 6 is arranged, placing links to each other in the casing 4 and with turning cylinder 6 is connected to rotary barrel 7, axially-aligned has the tingia of revolving wheel 8 on rotary barrel 7, link to each other with an end of turning cylinder 6 and to be connected to the turning cylinder driving mechanism of forming by motor and decelerator 9, be respectively fitted with bearing block 10 at the two ends of turning cylinder 6, below each bearing block 10, rubber damping device 11 be installed.The described tingia wheel 8 that revolves is by being mounted on the ring gear 12 on the rotary barrel 7 through key and revolving tooth 14 and place the circumferential attached tooth 15 of crescent that arc revolves tooth root portion inboard to form through the radial strut that bolt 13 fixedly is distributed on the ring gear 12.
Accompanying drawing 5 has provided the concrete enforcement structure of rubber damping device 10 of the present utility model.It has the base 16 of horizontal, and the connecting bolt 17 through placing two ends above base 16 is connected with cover body 18, on base 16 and place and be provided with high density block rubber 19 in the cover body 18.Block rubber 19 can be set as polylith according to the designing requirement branch.
As accompanying drawing 6, the utility model is provided with between each ring gear 12 and revolves space width adjustment spacer 20, by changing the adjustment spacer 20 of different in width, can adjust the spacing of revolving tooth 14 easily, to be fit to the fire coal screening that different grain size requires.
As accompanying drawing 7, accompanying drawing 8, the tooth outer side edges that arc of the present utility model revolves tooth 14 is fit to be arranged to parabola shaped, the concave arc that the inner tines limit that arc revolves tooth 14 is joined by row's smooth transition is formed, the cross section that arc revolves tooth 14 is designed to the trapezoid cross section of fillet smooth transition, shock resistance, removal of impurities performance and the antiseized coal performance of revolving tooth with raising.
Claims (4)
1. the coal-fired screening machine of a rotary teeth type, include side direction charging aperture (1) is set on top, the casing (4) of discharging opening (2) and coarse coal and miscellaneous object outlet (3) is set in the lower end, in casing (4), locate to be provided with dustproof check apron (5) in charging aperture (1), run through casing (4) horizontal turning cylinder (6) is arranged, placing links to each other in the casing (4) and with turning cylinder (6) is connected to rotary barrel (7), link to each other with an end of turning cylinder (6) and to be connected to the rotating shaft driving mechanism of forming by motor and decelerator (9), be respectively fitted with bearing block (10) at the two ends of turning cylinder (6), it is characterized in that: rubber damping device (11) is installed below described bearing block (10); Axially-aligned has the tingia of revolving wheel (8) on rotary barrel (7), this revolve tingia wheel (8) by be mounted on through key on the rotary barrel (7) ring gear (12) be connected the radial strut that is distributed on the ring gear (12) through bolt (13) and revolve tooth (14) and place the circumferential attached tooth of crescent (15) that arc revolves tooth root portion inboard to form; The concave arc that the inner tines limit that described arc revolves tooth (14) is joined by row's smooth transition is formed.
2. the coal-fired screening machine of rotary teeth type according to claim 1 is characterized in that: described rubber damping device (11) is by the base (16) of horizontal, form through the be connected cover body (18) that places base (16) top and the high density block rubber (19) that is arranged in the cover body (18) of two ends connecting bolt (17).
3. the coal-fired screening machine of rotary teeth type according to claim 1 is characterized in that: be provided with between each ring gear (12) and revolve space width adjustment spacer (20).
4. the coal-fired screening machine of rotary teeth type according to claim 1, it is characterized in that: the cross section that described arc revolves tooth (14) is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205432846U CN201807540U (en) | 2010-09-22 | 2010-09-22 | Spiral tooth type fire coal sieving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205432846U CN201807540U (en) | 2010-09-22 | 2010-09-22 | Spiral tooth type fire coal sieving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201807540U true CN201807540U (en) | 2011-04-27 |
Family
ID=43890489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205432846U Expired - Lifetime CN201807540U (en) | 2010-09-22 | 2010-09-22 | Spiral tooth type fire coal sieving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201807540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861815A (en) * | 2014-01-13 | 2014-06-18 | 洛阳广盈机械设备有限公司 | Single-tooth claw pricking type sundries removing device |
| CN111495764A (en) * | 2020-04-09 | 2020-08-07 | 鹤岗市田丰农机制造有限公司 | Straw impurity cleaning and sorting machine |
-
2010
- 2010-09-22 CN CN2010205432846U patent/CN201807540U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861815A (en) * | 2014-01-13 | 2014-06-18 | 洛阳广盈机械设备有限公司 | Single-tooth claw pricking type sundries removing device |
| CN111495764A (en) * | 2020-04-09 | 2020-08-07 | 鹤岗市田丰农机制造有限公司 | Straw impurity cleaning and sorting machine |
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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 |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |