CN2920903Y - Scraper conveyor coal transporting tank L-shape coupling hole push ear - Google Patents
Scraper conveyor coal transporting tank L-shape coupling hole push ear Download PDFInfo
- Publication number
- CN2920903Y CN2920903Y CN 200620120288 CN200620120288U CN2920903Y CN 2920903 Y CN2920903 Y CN 2920903Y CN 200620120288 CN200620120288 CN 200620120288 CN 200620120288 U CN200620120288 U CN 200620120288U CN 2920903 Y CN2920903 Y CN 2920903Y
- Authority
- CN
- China
- Prior art keywords
- ear
- fastener hole
- shaped
- connection holes
- scraper conveyor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of a transport technology under a well of coal mine, in particular to a pushing ear with an L-shaped fastener hole on a coal transportation groove of a scraper conveyer .The present the fastener hole of the pushing ear on the coal transportation groove of the scraper conveyor is of a rectilinear figure. When a hydraulic support supports, the stressed part is concentrated on the lower part of the fastener hole and thus the bearing position will be restricted in a narrow scope and be easy to be offset-loaded and to break with low bearing efficiency. The utility model applies an optimum design of the shape and optimizes the shape of the fastener hole of the pushing ear on the coal transportation groove of the scraper conveyor. That is, the original fastener hole of the rectilinear figure is changed into an L-shaped one. The best proposal is as the following: the angle between the center lines of the two circles of the fastener hole and a horizontal line is 45 degree; the center lines of the two circles are changed into broken lines A and B from straight line; and the angle between A and B is 25 degree. The pushing ear reduces the stress peak and solves the problem that pushing ear is easy to be offset-loaded and overloaded and to break, thereby losing effectiveness.
Description
Technical field
The utility model relates to transportation technology field under the coal mine, and the L shaped connection holes of specifically a kind of underground mine use slat conveyer coal chute is passed ear.
Background technology
Slat conveyer is the significant transportation equipment under the coal mine, because slat conveyer is in the operating mode complexity of underground work, caused it stressedly to have complexity and a uncertainty, the connection holes that coal chute is passed on the ear is a key position of realizing that slat conveyer pushing and sliding and hydraulic support are tried to stop people from fighting each other.At present, it is linear that the slat conveyer coal chute is passed the ear connection holes, and the connection holes lower end is stressed when hydraulic support is tried to stop people from fighting each other concentrates, and the carrying position is limited in the very little zone, is easy to unbalance loading and breaks, and load-carrying efficiency is low.
Summary of the invention
The purpose of this utility model provides the L shaped connection holes of a kind of slat conveyer coal chute and passes ear, problem at above-mentioned existence, adopt the method for Shape optimization designs, design the L shaped connection holes of coal chute and pass ear, effectively improved the strained condition at this position of coal chute, reduced peak stress, successfully solved passing ear position and be prone to unbalance loading, transship and break Problem of Failure.
The utility model is for solving its technical matters, and the connection holes of the slat conveyer coal chute being passed ear has carried out Shape optimization.The technical scheme that is adopted is: being shaped as of passing ear connection holes is L shaped.
The beneficial effects of the utility model are, the maximum stress regional centralized is in the tensile zone part, and maximum stress has reduced by 17.37%.Make stress passing ear near zone uniformization, reduced stress concentration, can avoid the potential safety hazard that exists under the heavy load running operating mode.
Above-mentioned L shaped connection holes is passed ear, has two or more applicable to same coal chute and passes ear.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that slat conveyer coal chute linear connection holes is passed ear structure figure.
Fig. 2 is that the L shaped connection holes of the utility model slat conveyer coal chute is passed ear structure figure.
The specific embodiment
The application of shape optimal design, the connection holes of the slat conveyer coal chute being passed ear carries out Shape optimization.Its preferred plan is, connection holes two circle line of centerss are designed to 45 ° with the horizon angle, and two circle line of centerss become broken line A and B by straight line, and the angle of A and B is 25 °, obtains the L shaped connection holes passing of slat conveyer coal chute ear.
Claims (3)
1, the L shaped connection holes of a kind of slat conveyer coal chute is passed ear, it is characterized in that: being shaped as of passing ear connection holes is L shaped.
2, the L shaped connection holes of slat conveyer coal chute as claimed in claim 1 is passed ear, it is characterized by, the preferred plan of described L shaped passing ear connection holes is that connection holes two circle line of centerss and horizon angle are 45 °, and two circle line of centerss become broken line A and B by straight line, and the angle of A and B is 25 °.
3, the L shaped connection holes of slat conveyer coal chute according to claim 1 is passed ear, it is characterized in that: have two or more applicable to same coal chute and pass ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120288 CN2920903Y (en) | 2006-06-20 | 2006-06-20 | Scraper conveyor coal transporting tank L-shape coupling hole push ear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120288 CN2920903Y (en) | 2006-06-20 | 2006-06-20 | Scraper conveyor coal transporting tank L-shape coupling hole push ear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2920903Y true CN2920903Y (en) | 2007-07-11 |
Family
ID=38253382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620120288 Expired - Fee Related CN2920903Y (en) | 2006-06-20 | 2006-06-20 | Scraper conveyor coal transporting tank L-shape coupling hole push ear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2920903Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734477B (en) * | 2009-12-23 | 2012-04-18 | 三一重型装备有限公司 | Rack and scraper conveyor comprising same |
| CN102678116A (en) * | 2012-04-26 | 2012-09-19 | 三一重型装备有限公司 | Movable pushing device and coal mining machine |
| CN104533495A (en) * | 2014-12-10 | 2015-04-22 | 兖州煤业股份有限公司 | Slip connection device |
-
2006
- 2006-06-20 CN CN 200620120288 patent/CN2920903Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734477B (en) * | 2009-12-23 | 2012-04-18 | 三一重型装备有限公司 | Rack and scraper conveyor comprising same |
| CN102678116A (en) * | 2012-04-26 | 2012-09-19 | 三一重型装备有限公司 | Movable pushing device and coal mining machine |
| CN104533495A (en) * | 2014-12-10 | 2015-04-22 | 兖州煤业股份有限公司 | Slip connection device |
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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: 20070711 Termination date: 20150620 |
|
| EXPY | Termination of patent right or utility model |