CN202810923U - Conveyor trough rolling ledge used for mining extremely-thin coal seam - Google Patents
Conveyor trough rolling ledge used for mining extremely-thin coal seam Download PDFInfo
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- CN202810923U CN202810923U CN 201220445676 CN201220445676U CN202810923U CN 202810923 U CN202810923 U CN 202810923U CN 201220445676 CN201220445676 CN 201220445676 CN 201220445676 U CN201220445676 U CN 201220445676U CN 202810923 U CN202810923 U CN 202810923U
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- ledge
- coal seam
- thin coal
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Abstract
The utility model relates to the technical field of the underground extremely-thin coal seam mining and conveying machine for a coal mine, in particular to a conveyor trough rolling ledge used for mining an extremely-thin coal seam. The rolling ledge in the prior art is in an M type and an E type which can not achieve the economy requirement of the extremely-thin coal seam mining due to the limitation of the ledge height size and the strength. The utility model provides an integral rolling ledge, the upper wing plate and the lower wing plate of the outer side surface A of the ledge are respectively provided with an extension section, and an angle beta formed between the bottom surface of the extension section and the horizontal surface of the extension section is 3-9 degrees. The utility model provides a new rolling ledge, the height of the middle trough is reduced while the use intensity of the middle trough is satisfied so as to lower the height of the overall heightmachine, the strength of the ledge is enhanced, and the phenomenon that the ledge is deformed and broken due to the fact that the ledge is subjected to outward extrusion force in the conveyor coal conveying process or is subjected to uneven stressing in a hydraulic bracket pushing and pulling process can be avoided, thereby being favorable for realizing the fully mechanized mining matching of the extremely-thin coal seam.
Description
Technical field
The utility model relates to the technical field of ultra-thin coal seam mining conveyor tool under the coal mine, specifically a kind ofly exploits the delivery chute rolled ledge that ultra-thin coal seam is used, and is applicable to be installed on the delivery chute of the middle pan of scraper conveyor, coal plough.
Background technology
At present, the transporter intermediate channel ledge that China's ultra-thin coal seam uses has two large classes: casting ledge and rolled ledge, the casting ledge compares, rolled ledge has compact conformation, one-shot forming intensity is higher, outward appearance is clean and tidy, without casting flaw, be out of shape the advantages such as little, make it in ultra-thin coal seam conveying equipment application facet obvious advantage be arranged.The rolled ledge of prior art is M type and the E types of being divided into again more, but limited by ledge height dimension and intensity, can not adapt to the exploitation of the more and more narrower and small ultra-thin coal seam in present space after supporting with coal-winning machine, cause ultra-thin coal seam mining machines degree low, can't reach the economy requirement of ultra-thin coal seam exploitation.
Summary of the invention
The purpose of this utility model provides a kind of delivery chute rolled ledge that ultra-thin coal seam is used of exploiting.Adopting section is the structure of " worker " type, when guaranteeing ledge intensity, has reduced the intermediate channel height, to satisfy the supporting requirement of ultra-thin coal seam fully-mechanized mining working mechanization three machines.
The technical solution of the utility model is: a kind ofly exploit the delivery chute rolled ledge that ultra-thin coal seam is used, ledge is whole rolling, it is characterized in that: the upper lower wing plate of ledge lateral surface A respectively is provided with the section of stretching out, and the β angle that the bottom surface of the section of stretching out and horizontal plane form is 3 °～9 °.
Further, the section of stretching out that the upper lower wing plate of described ledge lateral surface A is provided with, the length L from ledge lateral surface (A) to wing plate right-hand member lateral surface is 25～50mm.
The beneficial effects of the utility model are: the rolled ledge compact conformation, thereby effectively reduce the intermediate channel height and reduce the complete machine height, satisfy the supporting requirement of ultra-thin coal seam work plane, be conducive to the supporting realization of ultra-thin coal seam fully-mechanized mining equipment, satisfy the requirement of fully-mechanized mining working high-yield and high-efficiency.
The utility model has been strengthened the intensity of ledge itself with respect to E type and the M type ledge of prior art, prevents that ledge is subject to outside extruding force in conveyer fortune coal process or unbalance stress and cause ledge distortion brisement in hydraulic support pushing-pulling-rack process.In addition, the section of stretching out in the ledge outside also helps monoblock cast or forges the welding of inlaying of termination, compare with traditional ledge, the section of stretching out has effectively increased the contact area of termination and ledge, strengthened the weld strength of termination and ledge, solve in the past the termination and easily snapped the problem that comes off, guaranteed the reliability that intermediate channel connects, improved the application life of intermediate channel in the down-hole, and compared to traditional ledge, the section of stretching out has increased the contact area of very thin seam coal winning machine piston shoes and ledge upper surface, makes the operation of coal-winning machine more steady.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the intermediate channel schematic diagram with the utility model assembling.
Fig. 3 is E type ledge structural representation.
Fig. 4 is M type ledge structural representation.
The specific embodiment
Among the figure: 1, forge the termination, 2, middle plate, 3, rolled ledge, A, ledge lateral surface.
As shown in Figure 1 a kind of exploits the delivery chute rolled ledge that ultra-thin coal seam is used, and ledge is whole rolling, it is characterized in that: the upper lower wing plate of ledge lateral surface A respectively is provided with the section of stretching out, and the β angle of the bottom surface of the section of stretching out and horizontal plane formation is 3 °～9 °.
The section of stretching out that the upper lower wing plate of described ledge lateral surface A is provided with, the length L from ledge lateral surface A to wing plate right-hand member lateral surface is respectively 25mm, 30mm, 35mm, 40mm, 45mm, 50mm.
As shown in Figure 2, the middle pan of scraper conveyor mainly is made of the ledge that is arranged at both sides and the middle plate that is fixedly connected between the two, and the drag conveyor delivery chute is formed by connecting by the termination that is welded on the ledge by a plurality of intermediate channel.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all embodiments exhaustive.Every row that belong to the protection domain that apparent variation that the technical solution of the utility model extends out or change still be in.
Claims (2)
1. exploit the delivery chute rolled ledge that ultra-thin coal seam is used for one kind, ledge is whole rolling, it is characterized in that: the upper lower wing plate of ledge lateral surface (A) respectively is provided with the section of stretching out, and the β angle that the bottom surface of the section of stretching out and horizontal plane form is 3 °～9 °.
2. a kind of delivery chute rolled ledge that ultra-thin coal seam is used of exploiting as claimed in claim 1, it is characterized in that: the section of stretching out of the upper lower wing plate of described ledge lateral surface (A), the length L from ledge lateral surface (A) to wing plate right-hand member lateral surface is 25～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445676 CN202810923U (en) | 2012-08-23 | 2012-08-23 | Conveyor trough rolling ledge used for mining extremely-thin coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445676 CN202810923U (en) | 2012-08-23 | 2012-08-23 | Conveyor trough rolling ledge used for mining extremely-thin coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810923U true CN202810923U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220445676 Expired - Fee Related CN202810923U (en) | 2012-08-23 | 2012-08-23 | Conveyor trough rolling ledge used for mining extremely-thin coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828774A (en) * | 2012-08-23 | 2012-12-19 | 中煤张家口煤矿机械有限责任公司 | Rolled ledge of conveying trough used for exploiting ultra-thin coal seam |
-
2012
- 2012-08-23 CN CN 201220445676 patent/CN202810923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828774A (en) * | 2012-08-23 | 2012-12-19 | 中煤张家口煤矿机械有限责任公司 | Rolled ledge of conveying trough used for exploiting ultra-thin coal seam |
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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: 20130320 Termination date: 20160823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |