CN2091725U - Centrifugal probabilistic screen - Google Patents
Centrifugal probabilistic screen Download PDFInfo
- Publication number
- CN2091725U CN2091725U CN 91212669 CN91212669U CN2091725U CN 2091725 U CN2091725 U CN 2091725U CN 91212669 CN91212669 CN 91212669 CN 91212669 U CN91212669 U CN 91212669U CN 2091725 U CN2091725 U CN 2091725U
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- Prior art keywords
- sieving
- width
- sieve
- utility
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model relates to a novel sieving mechanism which is used on railway ballast cleaning and sieving machines and is designed on the ground of the principle of ballast relatively sliding along screen surfaces and the polygonal effect of chain transmission. The utility model is characterized in that a sieve belt comprises sieve sheets which are arranged in the stagger way and sieve holes with the same width are formed; the length of each of the sieve holes is bigger than the width, and the width of each of the sieve holes is determined by the particle diameter of the critical broken dreg. The utility model enables the particle diameter of smaller broken dreg to obtain sufficient sieving to improve sieving rate, prolong cleaning and sieving period, save cost, and raise the quality of ballast beds; when the cleaning and sieving machines are redesigned, the sieving width can be reduced, and machines are more compact. The utility model is suitable for various types of big, medium, small ballast cleaning and sieving machines.
Description
The utility model relates to a kind of railroad ballast cleaning sub-agencies.
The sieve aperture of existing screen centrifuge be width greater than length, its size can vertically be determined by critical broken quarrel particle diameter by the diagonal of sieve aperture.Therefore, the screening efficiency of this screen centrifuge is very low, and cleaning is of low quality, and its grating does not meet Ministry of Railways's ministry standard.And be to serve as according to designing with ballast aggregate along principle and the chaindriven polygon effect that compass screen surface relatively slides according to the contained another kind of novel centrifugal probability screen of Chinese patent 90215995.X (the centrifugal probability screen of different pass).Be characterized in sieving band and constitute, and the length of sieve aperture is greater than width by one wide one narrow compound sieve aperture.This screen centrifuge has been broken through traditional design considerations on design principle, screening quality and screening efficiency are obviously improved, and can prolong the cleaning cycle.But emphasizing one wide one narrow compound sieve aperture on its structure, is not unique from reasonable structure in fact.
The purpose of this utility model is to seek at the shortcoming of existing screen centrifuge a kind ofly to improve screening efficiency, improve screening quality, improve the novel centrifugal sieve of railway roadbed performance.
The utility model is that the theory and the chaindriven polygon effect of slip serve as according to the more new-type centrifugal probability screen that designs relatively along compass screen surface with ballast aggregate.
Describe below in conjunction with accompanying drawing.
Figure one is the schematic top plan view of the centrifugal probability of diplodal.
Structure of the present utility model and existing screen centrifuge are basic identical.Form by driving-chain ［ 1 ］, support chain ［ 2 ］ and sieve band ［ 3 ］, its characteristics form for sieve band ［ 3 ］ is staggered by the sieve sheet, the width of its sieve aperture ［ 5 ］ equates, and the length of sieve aperture ［ 4 ］ is greater than the width ［ 5 ］ of sieve aperture, and the width of sieve aperture ［ 5 ］ is determined by the particle diameter of critical broken quarrel.
Through test invention, when sieve aperture length of the present utility model ［ 4 ］ was 1.2～4 times of sieve aperture width ［ 5 ］, the screening quality of sieve aperture was better.
Adopt the utility model that broken quarrel is sieved fully, obviously improved screening efficiency and screening quality, can reduce the circuit disease, and prolong the cleaning cycle of railway roadbed.It is wide to reduce sieve when adopting the utility model to design novel screen scarifier, makes complete machine structure more compact, stressed more reasonable, reduces metal consumption, cuts down the consumption of energy the scope of application, the manufacturing cost that has reduced machine and the use cost of expansion machine.
The utility model is applicable to large, medium and small various ballast screening machine.
Claims (2)
1, the centrifugal probability screen of a kind of diplodal is made up of driving-chain [1], support chain [2] and sieve band [3], it is characterized in that sieve band [3] is staggered by the sieve sheet forms, the width of each sieve aperture [5] equate and the length [4] of sieve aperture greater than the width [5] of sieve aperture, the width of sieve aperture [5] is determined by the particle diameter of critical broken quarrel.
2, the centrifugal probability screen of diplodal according to claim 1, the length ［ 4 ］ that it is characterized in that sieve aperture is 1.2～4 times of the width of sieve aperture ［ 5 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212669 CN2091725U (en) | 1991-05-13 | 1991-05-13 | Centrifugal probabilistic screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212669 CN2091725U (en) | 1991-05-13 | 1991-05-13 | Centrifugal probabilistic screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2091725U true CN2091725U (en) | 1992-01-01 |
Family
ID=4921165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91212669 Withdrawn CN2091725U (en) | 1991-05-13 | 1991-05-13 | Centrifugal probabilistic screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2091725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225797A (en) * | 2017-11-08 | 2019-01-18 | 刘全义 | Put down back sieve special chain compass screen surface and preparation method thereof |
-
1991
- 1991-05-13 CN CN 91212669 patent/CN2091725U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225797A (en) * | 2017-11-08 | 2019-01-18 | 刘全义 | Put down back sieve special chain compass screen surface and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |