CN210829245U - Drum type crushing roller for coal cutter - Google Patents
Drum type crushing roller for coal cutter Download PDFInfo
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- CN210829245U CN210829245U CN201921812205.4U CN201921812205U CN210829245U CN 210829245 U CN210829245 U CN 210829245U CN 201921812205 U CN201921812205 U CN 201921812205U CN 210829245 U CN210829245 U CN 210829245U
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Abstract
The utility model relates to a drum type crushing drum for coal-winning machine, toothholder and pick including the cylinder, connection pad and a plurality of one-to-one, the pick is fixed corresponding on the toothholder, the toothholder distributes on the outer cylinder of cylinder and relative cylinder fixed connection, toothholder and pick divide into the multiunit along the axial of cylinder, and a plurality of toothholders dispersion in every group arrange on a circumference of the outer cylinder of cylinder, the tooth top of pick arrives the distance of the outer cylinder of cylinder uses middle group as the biggest, and the group that is close to the axial both ends of cylinder more is littleer, the connection pad is coaxial to be fixed axial of cylinder is served, be provided with the broken tooth of a plurality of sawtooth pattern along the circumference dispersion on the cylinder of connection pad. The utility model discloses broken coal ability is stronger, and life is longer.
Description
Technical Field
The utility model relates to a cylinder on breaker for coal-winning machine belongs to coal mining equipment technical field.
Background
With the progress of coal mining technology and equipment in recent years, more and more thick and ultra-thick coal seams begin to adopt once-mining full-height technology and equipment. The higher the mining height, the greater the probability of the rib caving phenomenon. The large coal blocks falling off from the upper part fall onto the scraper conveyor under the action of gravity, and the crushing device is required to crush the upper coal blocks.
As the scraper conveyer is always in a working running state, the lump coal falling to the middle part of the scraper conveyer can be transported away in a short time, and the lump coal falling to the two sides of the scraper conveyer is difficult to transport away, so that the lump coal integrally presents a concave structure, the middle part is low, the two sides are high, and the lump coal accumulation state shown in figure 1 is formed.
The distances from tooth crests of all cutting teeth on a roller of the conventional crushing device to an outer cylindrical surface of a roller body are equal, namely the tooth crests of all the cutting teeth are positioned on the same cylindrical surface. This results in the crushing drum contacting the coal briquette first with the cutting teeth on the sectional lines near the two ends of the drum body in the lump coal stacking state shown in fig. 1, while the cutting teeth on the sectional line in the middle are difficult to contact the lump coal, the cutting teeth have large and small workload, each cutting tooth cannot function in a balanced manner, and there are problems of low coal crushing efficiency, large workload of the cutting teeth on both sides, and low service life.
With the gradual increase of the caving lump coal, the problem that the crushing roller has stronger crushing capability under the premise of unchanged power becomes urgent to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coal-winning machine is with broken cylinder of drum type, broken coal ability is stronger, and life is longer.
The utility model discloses a main technical scheme has:
the drum-type crushing drum for the coal mining machine comprises a cylindrical drum body and a plurality of tooth holders and cutting teeth which correspond to one another, wherein the cutting teeth are fixed on the corresponding tooth holders, the tooth holders are distributed on the outer cylindrical surface of the drum body and fixedly connected with the drum body relatively, the tooth holders and the cutting teeth are divided into a plurality of groups along the axial direction of the drum body, the plurality of tooth holders in each group are dispersedly distributed on one circumference of the outer cylindrical surface of the drum body, the distance from the tooth tips of the cutting teeth to the outer cylindrical surface of the drum body is the largest by using a middle group, and the groups which are closer to the two axial ends of the drum body are smaller.
The tooth holder and the cutting teeth can be divided into five groups along the axial direction of the roller body, and the first group, the second group, the third group, the fourth group and the fifth group are respectively arranged from one axial end of the roller body to the other axial end of the roller body.
The drum-type crushing roller for the coal mining machine further comprises a first cushion block and a second cushion block, the toothholders of the second group and the fourth group are fixed on the first cushion block, the toothholders of the third group are fixed on the second cushion block, the first cushion block and the second cushion block are welded on the outer cylindrical surface of the roller body, the height of the first cushion block is smaller than that of the second cushion block, the toothholders of the first group and the fifth group are directly fixed on the outer cylindrical surface of the roller body, specifications of all the toothholders are the same, and specifications of the cutting teeth are the same.
The tooth holders of the first group, the third group and the fifth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the first group, one tooth holder of the third group and one tooth holder of the fifth group are arranged on each generatrix, the tooth holders of the second group and the fourth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the second group and one tooth holder of the fourth group are arranged on each generatrix, and the tooth holders of the second group and the tooth holders of the fourth group are mutually staggered with the tooth holders of the first group, the third group and the fifth group in the circumferential.
The mounting directions of the three cutting picks corresponding to the same bus bar in each pair of the first group, the third group and the fifth group are consistent, and the mounting directions of the two cutting picks corresponding to the same bus bar in each pair of the second group and the fourth group are consistent.
The installation direction of each cutting tooth deviates a certain angle from the corresponding radial direction of the drum body, the axes of the cutting teeth are positioned on a plane formed by the corresponding section lines, and all the cutting teeth are installed along the circumferential direction of the drum body in a clockwise or anticlockwise direction.
The paired tooth holders and cutting teeth in the same group are uniformly distributed according to the circumference.
The included angles of the overhanging directions of all cutting teeth relative to the outer cylindrical surface of the roller body are equal.
The drum-type crushing roller for the coal mining machine further comprises a connecting disc, the connecting disc is coaxially fixed at one axial end of the roller body, and a plurality of sawtooth-type crushing teeth are preferably arranged on the cylindrical surface of the connecting disc in a scattered mode along the circumference.
A plurality of sawtooth type broken teeth are evenly distributed along the circumference of the connecting disc.
The utility model has the advantages that:
the utility model discloses a drum-shaped structure that middle height, both ends are low can pile up the state with "concave" font lump coal on the scraper conveyor and mutually match, laminates each other, has guaranteed that all picks can both effectively participate in crushing work, has consequently reduceed the pick loss, has improved crushing efficiency by a wide margin.
The utility model discloses a five transversal designs, and the crisscross distribution of pick of adjacent transversal, increased the quantity that the pick was arranged on the one hand, on the other hand has promoted the broken coal ability of cylinder.
The utility model discloses be provided with the broken tooth of a plurality of sawtooth pattern along the circumference dispersion on the cylinder of connection pad, further improved broken coal ability of cylinder and life.
Drawings
FIG. 1 is a schematic diagram of a state of lump coal accumulation on a prior art lower scraper conveyor;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals:
1. a cutting pick; 2. a tooth holder; 3. a first cushion block; 4. a second cushion block; 5. a roller body; 6. a first section line; 7. a second section line; 8. a drum-shaped structure; 9. a sawtooth-shaped crushing tooth; 10. a fourth section line; 11. a fifth section line; 12. a third section line; 13. and (7) connecting the disc.
Detailed Description
The utility model discloses a drum type crushing drum for coal cutter, as shown in figure 2, toothholder 2 and pick 1 including cylindrical drum body 5 and a plurality of one-to-one, the pick is fixed correspondingly on the toothholder, form the cutting system. The tooth holders are distributed on the outer cylindrical surface of the drum body and fixedly connected with the drum body, the tooth holders and the cutting teeth are divided into a plurality of groups along the axial direction of the drum body, the plurality of tooth holders in each group are distributed on one circumference of the outer cylindrical surface of the drum body, the distance from the tooth tops of the cutting teeth to the outer cylindrical surface of the drum body is the largest by taking the middle group as the largest, the groups closer to the two axial ends of the drum body are smaller, and the enveloping curved surfaces of the tooth tops of all the cutting teeth form a drum-shaped structure 8 with a high middle part and low two ends.
The utility model discloses a drum-shaped crushing drum's "protruding" font structure can pile up the state with "concave" font lump coal on the scraper conveyor and mutually match, laminates each other, has guaranteed that all picks can both effectively participate in crushing work, has consequently reduceed the pick loss, has improved crushing efficiency by a wide margin.
The tooth holder and the cutting teeth can be divided into five groups along the axial direction of the roller body, and the first group, the second group, the third group, the fourth group and the fifth group are respectively arranged from one axial end of the roller body to the other axial end of the roller body. Each circumference is referred to herein as a stub, and the first to fifth sets correspond to the first stub 6, the second stub 7, the third stub 12, the fourth stub 10, and the fifth stub 11, respectively.
The drum-type crushing roller for the coal mining machine can further comprise a first cushion block 3 and a second cushion block 4, the tooth holders of the second group and the fourth group are fixed on the first cushion block, the tooth holder of the third group is fixed on the second cushion block, the first cushion block and the second cushion block are both fixed on the outer cylindrical surface of the roller body, the height of the first cushion block is smaller than that of the second cushion block, and the tooth holders of the first group and the fifth group are directly fixed on the outer cylindrical surface of the roller body, so that a drum-shaped structure 8 with a high middle and low two ends is realized. In this case, it is preferable that all the seats have the same specification, and the picks have the same specification, simplifying manufacture and assembly. In this embodiment, the first and second spacers are welded to the drum body.
The tooth holders of the first group, the third group and the fifth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the first group, one tooth holder of the third group and one tooth holder of the fifth group are arranged on each generatrix, the tooth holders of the second group and the fourth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the second group and one tooth holder of the fourth group are arranged on each generatrix, and the tooth holders of the second group and the tooth holders of the fourth group are mutually staggered with the tooth holders of the first group, the third group and the fifth group in the circumferential. The whole design that adopts five transversal lines of cylinder, and the pick of adjacent transversal staggers the distribution, and this kind of structure has increased the quantity that the pick arranged on the one hand, and on the other hand has promoted the broken coal ability of cylinder.
The mounting directions of the three cutting picks corresponding to the same bus bar in each pair of the first group, the third group and the fifth group are consistent, and the mounting directions of the two cutting picks corresponding to the same bus bar in each pair of the second group and the fourth group are consistent.
The mounting direction of each pick is angled away from the respective radial direction of the drum body, and the axes of the picks preferably lie in the plane formed by the respective section lines. All the cutting picks are installed along the circumferential direction of the drum body in the clockwise or anticlockwise direction.
The paired tooth holders and cutting teeth in the same group are uniformly distributed according to the circumference.
Furthermore, included angles of the overhanging directions of all cutting teeth relative to the outer cylindrical surface of the roller body are equal, so that the cutting teeth are stressed uniformly, the coal breaking capacity of the roller is improved, and the service life of the roller is prolonged.
The drum-type crushing roller for the coal mining machine further comprises a connecting disc 13, the connecting disc is coaxially fixed at one axial end of the roller body, and a plurality of sawtooth-type crushing teeth 9 are preferably arranged on the cylindrical surface of the connecting disc in a scattered mode along the circumference, so that more teeth are arranged at one end, close to the connecting disc, of the connecting disc to participate in crushing, and therefore the coal crushing capacity of the roller is further improved, and the service life of the roller is further prolonged.
The plurality of sawtooth-shaped crushing teeth are preferably evenly distributed along the circumference of the connecting disc.
Claims (10)
1. The utility model provides a coal-winning machine is with drum type crushing roller which characterized in that: including cylindrical drum body and the toothholder and the pick of a plurality of one-to-one, the pick is fixed correspondingly on the toothholder, the toothholder distributes on the outer cylinder of drum body and relative drum body fixed connection, toothholder and pick divide into the multiunit along the axial of drum body, and a plurality of toothholders in every group dispersion are arranged on a circumference of the outer cylinder of drum body, the tooth top of pick arrives the distance of the outer cylinder of drum body uses middle group as the biggest, and the more close to the group at the axial both ends of drum body is littleer.
2. The drum-type crushing drum for a coal cutter according to claim 1, characterized in that: the tooth holder and the cutting teeth are divided into five groups along the axial direction of the roller body, and the first group, the second group, the third group, the fourth group and the fifth group are respectively arranged from one axial end of the roller body to the other axial end of the roller body.
3. The drum-type crushing drum for a coal cutter according to claim 2, characterized in that: the roller body is characterized by further comprising a first cushion block and a second cushion block, the tooth holders of the second group and the fourth group are fixed on the first cushion block, the tooth holders of the third group are fixed on the second cushion block, the first cushion block and the second cushion block are welded on the outer cylindrical surface of the roller body, the height of the first cushion block is smaller than that of the second cushion block, the tooth holders of the first group and the fifth group are directly fixed on the outer cylindrical surface of the roller body, all the tooth holders are identical in specification, and the cutting teeth are identical in specification.
4. The drum-type crushing drum for a coal cutter according to claim 3, characterized in that: the tooth holders of the first group, the third group and the fifth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the first group, one tooth holder of the third group and one tooth holder of the fifth group are arranged on each generatrix, the tooth holders of the second group and the fourth group are linearly arranged along a plurality of generatrices of the outer cylindrical surface of the roller body in the axial direction, one tooth holder of the second group and one tooth holder of the fourth group are arranged on each generatrix, and the tooth holders of the second group and the tooth holders of the fourth group are mutually staggered with the tooth holders of the first group, the third group and the fifth group in the circumferential.
5. The drum-type crushing drum for a coal cutter according to claim 4, characterized in that: the mounting directions of the three cutting picks corresponding to the same bus bar in each pair of the first group, the third group and the fifth group are consistent, and the mounting directions of the two cutting picks corresponding to the same bus bar in each pair of the second group and the fourth group are consistent.
6. The drum-type crushing drum for a coal cutter according to claim 5, characterized in that: the installation direction of each cutting tooth deviates a certain angle from the corresponding radial direction of the drum body, the axes of the cutting teeth are positioned on a plane formed by the corresponding section lines, and all the cutting teeth are installed along the circumferential direction of the drum body in a clockwise or anticlockwise direction.
7. The drum-type crushing drum for a coal cutter according to claim 6, characterized in that: the paired tooth holders and cutting teeth in the same group are uniformly distributed according to the circumference.
8. The drum-type crushing drum for a coal cutter according to claim 7, characterized in that: the included angles of the overhanging directions of all cutting teeth relative to the outer cylindrical surface of the roller body are equal.
9. The drum-type crushing drum for a coal cutter according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that: the roller body is characterized by further comprising a connecting disc, the connecting disc is coaxially fixed at one axial end of the roller body, and a plurality of sawtooth-shaped crushing teeth are arranged on the cylindrical surface of the connecting disc in a dispersed mode along the circumference.
10. The drum-type crushing drum for a coal cutter according to claim 9, characterized in that: a plurality of sawtooth type broken teeth are evenly distributed along the circumference of the connecting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921812205.4U CN210829245U (en) | 2019-10-26 | 2019-10-26 | Drum type crushing roller for coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921812205.4U CN210829245U (en) | 2019-10-26 | 2019-10-26 | Drum type crushing roller for coal cutter |
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| Publication Number | Publication Date |
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| CN210829245U true CN210829245U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921812205.4U Active CN210829245U (en) | 2019-10-26 | 2019-10-26 | Drum type crushing roller for coal cutter |
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| CN (1) | CN210829245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608038A (en) * | 2019-10-26 | 2019-12-24 | 天地科技股份有限公司上海分公司 | Drum type crushing roller for coal cutter |
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2019
- 2019-10-26 CN CN201921812205.4U patent/CN210829245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608038A (en) * | 2019-10-26 | 2019-12-24 | 天地科技股份有限公司上海分公司 | Drum type crushing roller for coal cutter |
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