CN211524803U - Coal mining machine roller - Google Patents
Coal mining machine roller Download PDFInfo
- Publication number
- CN211524803U CN211524803U CN201921043639.2U CN201921043639U CN211524803U CN 211524803 U CN211524803 U CN 211524803U CN 201921043639 U CN201921043639 U CN 201921043639U CN 211524803 U CN211524803 U CN 211524803U
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- coal
- spiral
- drum
- cylinder
- spiral board
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Abstract
The utility model relates to a coal-winning machine cylinder belongs to mining engineering machinery. The technical scheme includes that the drum comprises a drum body, cutting teeth are arranged on the outer surface of the drum, four groups of spiral plates extending from the outer side end face to an inner spiral are arranged on the outer surface of the drum, a central connecting line between the end of each group of spiral plates and a section circle of the drum is 90 degrees, and the cutting teeth are arranged on the tops of the spiral plates. The invention has the advantages that: the increased spiral plates improve the throwing efficiency of coal when the roller rotates, improve the coal charging efficiency and reduce the float coal thickness of the excavation working position after one-time mining. The coal loading speed saves the running time of a coal machine and a scraper-trough conveyer, reduces mechanical abrasion, saves electricity, reduces the empty top time of a coal wall, and is favorable for safe production.
Description
Technical Field
The utility model relates to a coal-winning machine cylinder belongs to mining engineering machinery.
Background
The drum helical blades of the original coal mining machine are provided with two groups, each group is helical within 180 degrees, and the helical blades rotate the crushed coal from the coal wall along the axial direction of the drum to push the crushed coal to be conveyed away in the scraper conveyor; because the coal quality is soft and powdery, the helical blade can not push all the fallen coal to the scraper conveyor at one time, and the missing float coal in the machine channel is about 600mm, because the throwing frequency of the helical blade is not enough.
The running speed of the roller of the MG170/410-WD coal mining machine used by the company of the inventor is 1.7m/min, the rotating speed of the blades is 46r/min, and the coal cutting of the working face is about 90min once. Coal cutting sequence of drum shearer: the coal is cut from the head part to the tail part of the working face by riding and sliding back and forth along the working face, the left roller is responsible for cutting the upper part of the coal layer, the right roller is responsible for cutting the lower part of the coal layer, the left roller and the right roller are vertically matched to complete the working procedures of cutting, dropping and loading coal on the working face of the coal mining machine, and the broken coal is rotationally pushed into a scraper conveyor to be transported away from the coal wall along the axial direction of the rollers by the helical blades; because the coal is soft and powdery, the falling coal cannot be completely pushed onto the scraper conveyor by the helical blade once, about 600mm of float coal is left in the machine channel, and the coal mining machine must pick up coal in one round trip, so 90min is delayed invisibly, the optimal maintenance time of a top plate and a coal wall is prolonged, and potential hazards are brought to safety production.
Disclosure of Invention
The invention provides a coal mining machine roller, which solves the problem of low coal throwing efficiency of helical blades.
In order to achieve the purpose, the invention adopts the technical scheme that;
the coal cutter roller comprises a roller body, cutting teeth are arranged on the outer surface of the roller, spiral plates extending from the outer side end face to the inner spiral are arranged on the outer surface of the roller, the number of the spiral plates is four, the end of each spiral plate is 90 degrees with the center connecting line of the cross section circle of the roller, and the cutting teeth are arranged on the tops of the spiral plates.
Preferably, the edge of the end face of the drum is provided with a circle of cutting teeth, and the cutting teeth of the end face are inclined towards the outer side and the rotation direction of the drum.
Preferably, the spiral plate top picks are oriented in the direction of rotation of the rotating drum.
Preferably, the spiral plates are made of wear-resistant manganese steel plates with the thickness of 20mm, the height of each spiral plate is 310mm, and the outlet width between every two adjacent spiral plates is 100 mm-360 mm.
The invention has the advantages that: the increased spiral plates improve the throwing efficiency of coal when the roller rotates, improve the coal charging efficiency and reduce the float coal thickness of the excavation working position after one-time mining.
The coal loading speed saves the running time of a coal machine and a scraper-trough conveyer, reduces mechanical abrasion, saves electricity, reduces the empty top time of a coal wall, and is favorable for safe production.
Drawings
Figure 1 is a side view of the present invention,
fig. 2 is a side view of the original product.
Reference numerals;
drum 1, cutting pick 3 spiral plate 2.
Detailed Description
The following further describes the specific structure of the present invention
The utility model discloses coal-winning machine cylinder, including the cylinder, the terminal surface edge of cylinder sets up a week pick, and this terminal surface position pick slope is towards outside and cylinder rotation direction.
The outer surface of the roller is provided with spiral plates which extend from the section teeth of the outer end surface to the inner spiral, the number of the spiral plates is four, the end of each group of spiral plates is 90 degrees with the center connecting line of the section circle of the roller, the four groups of spiral plates are arranged at equal intervals, and the cutting teeth are arranged at the tops of the spiral plates.
The spiral plate top cutting teeth face to the rotating direction of the rotating drum. The spiral plate is made of a wear-resistant manganese steel plate with the thickness of 20mm, the height of the spiral plate is 310mm, and the width of an outlet between every two adjacent spiral plates is 100-360 mm.
The manufacturing process of the product is as follows:
the spiral plate has the dimensions of 1200mm long, 310mm high and 20mm thick. The wear-resistant manganese steel plate is particularly adopted for manufacturing, and a spiral shape with the total external diameter of 1200mm and the width of 310mm can be drawn on the steel plate.
The spiral curve welding is to weld the spiral plates on the surface of the roller, the positions of the spiral plates are arranged at equal intervals, and the spiral plates are arranged near the inner side of the coal mining machine and form an inclination angle of 35 degrees with the surface of the roller; in order to prolong the service life of the spiral plate, the bottom of the two side surfaces of the spiral plate at the coal outlet is welded with the surface of the roller by 45 degrees. The outlet width of the helical blade is kept between 100mm and 360mm, so that the optimal coal charging effect is achieved, as shown in figure 1.
The position symmetry of the spiral plate needs to be kept in the manufacturing process, and the dynamic balance of the blade is ensured; secondly, the tail part of the spiral plate is kept consistent with the channel, and the smooth conveying of raw coal is ensured; thirdly, the wear resistance of the blade material is ensured, and the hardness is basically the same as that of the raw material; fourthly, the welding standard meets the requirements.
By using the roller of the coal mining machine, the coal loading efficiency after roller coal mining is improved to more than 95 percent from about 70 percent before, and the thickness of float coal is reduced to less than 80mm from about 600mm before. The coal loading speed is improved, the running time of the coal machine and the scraper-trough conveyer is saved, the mechanical abrasion is reduced, the power consumption is saved, the empty top time of the coal wall is reduced, and the safety production is facilitated.
Claims (1)
1. The utility model provides a coal-winning machine cylinder, includes the cylinder, and the surface of cylinder sets up the pick, characterized by, and the surface setting of cylinder is from the spiral board that the outside end extends to interior spiral, and the spiral board has four groups, and every group spiral board is equidistant to be arranged, and the tip of every group spiral board is 90 with being the center line with cylinder cross-section circle, and the top of spiral board sets up the pick, the terminal surface edge of cylinder sets up a week pick, and this terminal surface position pick slope is to the outside and cylinder rotation direction, and spiral board top pick orientation rotates the cylinder rotation direction, and the spiral board is the wear-resisting manganese steel sheet preparation of 20mm thickness, and the spiral board height 310mm, and the export width between adjacent spiral board is 100mm ~ 360 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043639.2U CN211524803U (en) | 2019-07-05 | 2019-07-05 | Coal mining machine roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043639.2U CN211524803U (en) | 2019-07-05 | 2019-07-05 | Coal mining machine roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211524803U true CN211524803U (en) | 2020-09-18 |
Family
ID=72438991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921043639.2U Expired - Fee Related CN211524803U (en) | 2019-07-05 | 2019-07-05 | Coal mining machine roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211524803U (en) |
-
2019
- 2019-07-05 CN CN201921043639.2U patent/CN211524803U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200918 Termination date: 20210705 |