LU93438B1 - Vibration Impact Lump Coal Crushing Drum and Shearer with Same - Google Patents
Vibration Impact Lump Coal Crushing Drum and Shearer with Same Download PDFInfo
- Publication number
- LU93438B1 LU93438B1 LU93438A LU93438A LU93438B1 LU 93438 B1 LU93438 B1 LU 93438B1 LU 93438 A LU93438 A LU 93438A LU 93438 A LU93438 A LU 93438A LU 93438 B1 LU93438 B1 LU 93438B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- drum
- impact
- drum body
- lump coal
- rods
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
Abstract
The present invention relates to a vibration impact lump coal crushing drum and a shearer with the same, wherein the vibration impact lump coal crushing drum comprises drum body and a drum shaft extending along an axis of the drum body; the drum shaft penetrates through two ends of the drum body and is fixed to the drum body; picks are arranged on the periphery of the drum body, and impact hammers are arranged in the drum body; and one ends of the impact hammers are fixed to the drum shaft, and impact heads capable of impacting the inner wall of the drum body are elastically connected to the other ends of the impact hammers. During rotation of the drum shaft, under the action of centrifugal force, the impact heads are thrown towards the inner wall of the drum body, to generate a huge shock wave to the drum body, so that spalling ribs and deposited coal are impacted, cutting is facilitated, and falling deposited coal during coal exploitation can be timely treated; and therefore, the processing efficiency of lump coal is improved, the production efficiency is improved and the safety and speed for underground processing of the spalling ribs and the lump coal, while extending the service life of the transmission and motor of the scraper conveyor. FIG. 1
Description
Vibration Impact Lump Coal Crushing Drum and Shearer with Same
Technical Field
The present invention belongs to the field of drum crushing equipment, and particularly relates to a vibration impact lump coal crushing drum and a shearer with the same.
Background
At present, most domestic coal mining enterprises adopt an artificial smashing treatment method to cut spalling ribs and lump coal falling on a flight drag conveyor. Due to the maximum power rating of the flight drag conveyor, the deposit of the spalling ribs and the lump coal is easy to make overloading work and blocked chain of the flight drag conveyor, so that a transmission chain and a motor of the flight drag conveyor are damaged. Artificial treatment of the spalling ribs and deposited coal causes low efficiency and low treatment speed, and the falling deposited coal cannot be treated in real time, the work difficulty is increased, and debris blasting easily causes explosion accident; and besides, coal mining efficiency and yield are reduced, thereby resulting in waste of coal production efficiency and resources. Therefore, it is desirable to design a better shearer to solve the above problems.
Summary
Aiming at the problems existing in the prior art, the present invention provides a vibration impact lump coal crushing drum and a shearer with the same, which improves production efficiency, increases the safety and speed of downhole treatment of the spalling ribs and the lump coal, and besides, prolongs the service life of the transmission mechanism and the motor of the flight drag conveyor.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a vibration impact lump coal crushing drum comprises a drum body and a drum shaft extending along an axis of the drum body, wherein the drum shaft penetrates through two ends of the drum body and is fixed to the drum body; picks are arranged on the periphery of the drum body, and impact hammers are arranged in the drum body; and one ends of the impact hammers are fixed to the drum shaft, and impact heads capable of impacting the inner wall of the drum body are elastically connected to the other ends of the impact hammers.
Further, through holes are formed in two end surfaces of the drum body in an axial direction, and bearings are arranged in the through holes, and the drum shaft is matched with the bearings.
Further, an axle housing sleeves the drum shaft, wherein the inner wall of the axle housing is connected with the drum shaft by a key, and the end part of the axle housing is fixed to the drum body by bolts.
Further, fixed sleeves which sleeve the drum shaft and are fastened by connecting bolts are arranged at the end parts of the impact hammers.
Further, positioning grooves are formed in positions corresponding to the mounting positions of the fixed sleeves, of the drum shaft.
Further, two partition plates are arranged in the impact hammers at interval, first perforation holes are separately formed in the partition plates, impact rods are arranged in the first perforation holes and can move along the first perforation holes, one ends of the impact rods are connected to the impact heads by connecting springs, and reset springs sleeve the impact rods and are limited between the two partition plates.
Further, second perforation holes are also formed in the partition plates, and positioned in two sides of the first perforation holes; damping rods which are positioned in the second perforation holes and can move along the second perforation holes are respectively arranged on two sides of the impact rods; baffles sleeve damping rods and are connected to the connecting rods on the same side as the damping rods; the connecting rods are connected between every two partition plates, and one damping spring sleeves the corresponding damping rod, and the damping springs are limited i between the baffles and the partition plates.
Further, the two baffles are arranged at interval on each of the damping rods, the damping springs are positioned between the baffles and the partition plates close to the baffles, and the length of each of the damping springs is less than that of each of the reset springs. A shearer comprises the vibration impact lump coal crushing drum, wherein one end of the drum shaft is connected with a motor through a coupling.
Further, one side of the coupling is connected to the end part of the drum shaft and the other side of the coupling is connected to a motor shaft end of the motor.
The vibration impact lump coal crushing drum and the shearer with the same have the beneficial effects that the impact hammers are arranged in the drum body, one ends of the impact hammers are fixed to the drum shaft, and impact heads capable of impacting the inner wall of the drum body are elastically connected to the other ends of the impact hammers. During rotation of the drum shaft, under the action of centrifugal force, the impact heads are thrown towards the inner wall of the drum body, to generate a huge shock wave to the drum body, so that spalling ribs and deposited coal are impacted, cutting is facilitated, and falling deposited coal during coal exploitation can be timely treated; and therefore, the treatment efficiency of lump coal is improved, the production efficiency is improved, the safety and speed for underground treatment of the spalling ribs and the lump coal are increased, and besides, the service life of a transmission and motor of a flight drag conveyor is prolonged.
Brief Description of Drawings
Fig. 1 is a structural schematic view of a vibration impact lump coal crushing drum of the present invention and a shearer with the same;
Fig. 2 is a structural schematic view of one impact hammer in the drum in Fig. 1;
Fig. 3 is a structural schematic view of the hammer body of one impact hammer in Fig. 2;
Fig. 4 is a side view of Fig. 3;
In the drawings, 1-drum body, 2-drum shaft, 3-through hole, 4-bearing, 5-pick, 6-axle housing, 7-key, 8-bolt, 9-coupling, 10-motor, 11-motor shaft, 12-impact hammer, 13-impact head, 14-fixed sleeve, 15-connecting bolt, 16-impact rod, 17-partition plate, 18-first perforation hole, 19-second perforation hole, 20-connecting spring, 21-reset spring, 22-damping rod, 23-damping spring, 24-baffle, 25-connecting rod.
Detailed Description
The technical scheme of the embodiments of the present invention will now be described clearly and completely with reference to the accompanying drawings, and those embodiments to be described will apparently be part of rather than all embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.
It should be noted that all directional indications (such as top, bottom, left, right, front, rear,...) in the embodiments of the present invention are only used to explain the relative positional relationship, a motion condition, etc. between the components in a particular posture (as shown in the drawings) and if the particular posture is changed, the directional indications will also change accordingly along with the particular posture.
As shown in Fig. 1, the present invention provides the vibration impact lump coal crushing drum and a shearer with the same, wherein the crushing drum is connected with a shearer body. The crushing drum comprises a drum body 1 and a drum shaft 2 extending along the axis of the drum body 1, wherein the drum shaft 2 is fixed to the drum body 1, and one end of the drum shaft 2 is connected with the motor 10 through a coupling 9, so that the motor 10 outputs power to the drum shaft 2, the drum body 1 is further driven to rotate, and the coal body is crushed. In the present embodiment, one side of the coupling 9 is connected to the end part of the drum shaft 2, and the other side is connected to the end part of the motor shaft 11 of the motor 10.
Protruding-outward spine-form picks 5 are arranged on the periphery of the drum body 1 for cutting lump coal. Preferably, the drum body 1 and the picks 5 are machined from high strength alloy steel, so that the cutting effect through impact crushing is improved and the efficiency of coal treatment is improved. Through holes 3 are formed in two end surfaces of the drum body 1 in an axial direction, bearings 4 are arranged in the through holes 3, the drum shaft 2 penetrates through two end surfaces of the drum body 1, and the drum shaft 2 is matched with the bearings 4. An axle housing 6 is arranged at one end surface of the drum body 1 and sleeves the drum shaft 2; the inner wall of the axle housing 6 is connected with the drum shaft 2 by a key 7, so that the axle housing 6 and the drum shaft 2 do not circumferentially rotate relatively; the bottom of the axle housing 6 abuts against the end surface of the drum body 1 and is fixedly connected with the drum body 1 by bolts 8; connection is performed through the bolts 8 and the key 7, the drum shaft 2, the axle housing 6 and the drum body 1 are integrally fixed, so that the drum body 1 can be driven to rotate together when the drum shaft 2 rotates, and the picks 5 on the outer surface of the drum body 1 cut the coal body.
As shown in Figs. 1 and 4, impact hammers 12 are arranged in the drum body 1, and fixed sleeves 14 are arranged at the end parts of the impact hammers 12. The fixed sleeves 14 circumferentially sleeve the drum shaft 2 and are fastened by connecting bolts 15, so that the fixed sleeves 14 are fixed to the drum shaft 2, and the impact hammers 12 rotate along with the rotation of the drum shaft 2. Positioning grooves are formed in positions corresponding to the mounting positions of the fixed sleeves 12 on the drum shaft 2, so that the mounting and dismounting of the impact hammers 12 are facilitated. The number and the mounting angle of the impact hammers 12 can be adjusted according to actual working conditions, so that actual production needs are well met. Impact heads 13 capable of impacting the inner wall of the drum body 1 are elastically connected to the other ends of the impact hammers 12; during the rotation of the drum shaft 2, under the action of centrifugal force, the impact heads 13 are thrown towards the inner wall of the drum body 1, to generate a vibration impact effect to the drum body 1, so that the spalling ribs and the deposited coal are impacted, and cutting is facilitated.
As shown in Figs. 2 and 3, two partition plates 17 are arranged at interval in the impact hammers 12, first perforation holes 18 are formed in the middle parts of the partition plates 17, second perforation holes 19 are symmetrically formed in two sides of the first perforation holes 18, and impact rods 16 are arranged in the first perforation holes 18 and can axially move along the first perforation holes 18; one ends of the impact rods 16 are connected to the impact heads 13 by connecting springs 20, reset springs 21 sleeve the middle parts of the impact rods 16, and are limited between the two partition plates 17; when the impact heads 13 impact the inner wall of the drum body 1 under the action of the centrifugal force,the impact rods 16 can move in the first perforation holes 18, and and after the impact is finished, under the action of the reset springs 21 and the connecting springs 20, the impact rods 16 and the impact heads 13 return to original positions.
Damping rods 22 are respectively arranged on two sides of the impact rods 16, are positioned in the second perforation holes 19 and can move along the second perforation holes 19. Connecting rods 25 are arranged between the impact rods 16 and the damping rods 22 and connected between the two partition plates 17, and two baffles 24 which sleeve the damping rods 22 are arranged on each connecting rod 25, and damping springs 23 sleeve the damping rods 22, and are limited between the baffles 24 and the partition plates 17. In this embodiment, the damping springs 23 are positioned between the baffles 24 and the partition plates 17 close to the baffles 24. The length of each damping spring 23 is less than that of the corresponding reset spring 21. The damping springs 23 are limited within a certain range by the baffles 24 and the partition plates 17, so that the vibration amplitude of the damping rods 22 can be limited, mechanical loss of the impact hammers 12 during crushing operation is reduced, and the service life of the impact hammers 12 is prolonged.
According to the vibration impact lump coal crushing drum and the shearer with the same disclosed by the present invention, the motor 10 drives the drum shaft 2 to rotate, so that the drum body 1 is further driven to rotate, and the picks 5 on the periphery of the drum body 1 cut lump coal. Besides, the impact hammers 12 are arranged in the drum body 1, and impact heads 13 capable of impacting the inner wall of the drum body 1 are connected to one ends of the impact hammers 12; during rotation of the drum shaft 2, under the action of centrifugal force, the impact heads 13 are thrown towards the inner wall of the drum body 1, to generate a huge shock wave to the drum body 1 so that spalling ribs and deposited coal are impacted, cutting is facilitated, and falling deposited coal during coal exploitation can be timely treated; and therefore, the treatment efficiency of lump coal is improved, the production efficiency is improved, and the safety and speed for underground treatment of the spalling ribs and the lump coal are increased. When the drum stops working, the connecting springs 20 and the reset springs 21 are reset to prepare for the next operation. The damping rods 22 and the damping springs 23 are arranged on two sides of the impact rods 16, so that mechanical loss of the impact hammers 12 during the crushing operation can be reduced, and the service life of the impact hammers 12 is prolonged. The crushing drum of the present invention can improve the working efficiency and prolong the service life of the transmission mechanism and the motor of the flight drag conveyor.
The above embodiments are merely illustrative of the technical schemes of the present invention and are not to be construed as limiting. While the present invention has been described in detail with reference to preferred embodiments thereof, it will be understood by those skilled in the art that modifications may be made or equivalents may be substituted for the technical scheme without departing from the spirit and scope of the technical schemes, which should be encompassed within the scope of the claims of the present invention.
Claims (10)
1. A Vibration impact lump coal crushing drum, characterized by comprising: a drum body and a drum shaft extending along an axis of the drum body, wherein the drum shaft penetrates through two ends of the drum body and is fixed to the drum body; picks are arranged on the periphery of the drum body, and impact hammers are arranged in the drum body; and one ends of the impact hammers are fixed to the drum shaft, and impact heads capable of impacting the inner wall of the drum body are elastically connected to the other ends of the impact hammers.
2. The vibration impact lump coal crushing drum according to claim 1, characterized in that: through holes are separately formed in two end faces of the drum body in an axial direction, bearings are arranged in the through holes, and the drum shaft is matched with the bearings.
3. The vibration impact lump coal crushing drum according to claim 1, characterized in that: an axle housing sleeves the drum shaft, wherein the inner wall of the axle housing is connected to the drum shaft by a key, and the end part of the axle housing is fixed to the drum body by bolts.
4. The vibration impact lump coal crushing drum according to claim 1, characterized in that: fixed sleeves which sleeve the drum shaft and are fastened by the connecting bolts are arranged at the end parts of the impact hammers.
5. The vibration impact lump coal crushing drum according to claim 4, characterized in that: positioning grooves are formed in positions corresponding to the mounting positions of the fixed sleeves, of the drum shaft.
6. The vibration impact lump coal crushing drum according to claim 1, characterized in that: two partition plates are arranged in the impact hammers at interval, first perforation holes are separately formed in the partition plates, impact rods are arranged in the first perforation holes and can move along the first perforation holes, one ends of the impact rods are connected to the impact heads by connecting springs, and reset springs sleeve the impact rods and are limited between the two partition plates.
7. The vibration impact lump coal crushing drum according to claim 6, characterized in that: second perforation holes are also formed in the partition plates, and positioned in two sides of the first perforation holes; damping rods which are positioned in the second perforation holes and can move along the second perforation holes are respectively arranged on two sides of the impact rods; baffles sleeve damping rods and are connected to the connecting rods on the same side as the damping rods; the connecting rods are connected between every two partition plates, and one damping spring sleeves the corresponding damping rod, and the damping springs are limited between the baffles and the partition plates.
8. The vibration impact lump coal crushing drum according to claim 7, characterized in that: the two baffles are arranged at interval on each of the damping rods, the damping springs are positioned between the baffles and the partition plates close to the baffles, and the length of each of the damping springs is less than that of each of the reset springs.
9. A shearer, characterized by comprising the vibration impact lump coal crushing drum according to any one of claims 1-9, wherein one end of the drum shaft is connected with a motor through a coupling.
10. The shearer according to claim 9, characterized in that: one side of the coupling is connected to the end part of the drum shaft and the other side of the coupling is connected to a motor shaft end of the motor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164636.9A CN105604549B (en) | 2016-03-22 | 2016-03-22 | A kind of vibration-impact type coarse coal crushing roller and its coal-winning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU93438B1 true LU93438B1 (en) | 2017-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU93438A LU93438B1 (en) | 2016-03-22 | 2016-12-27 | Vibration Impact Lump Coal Crushing Drum and Shearer with Same |
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| Country | Link |
|---|---|
| CN (1) | CN105604549B (en) |
| LU (1) | LU93438B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106732967B (en) * | 2017-01-17 | 2018-12-04 | 宣城苏兴矿业有限公司 | A kind of adjustable buffer power regulating mechanism of hammer mill |
| CN106984592A (en) * | 2017-06-08 | 2017-07-28 | 福建省将乐县长兴电子有限公司 | A kind of crystal oscillator produces surface dust collection device |
| CN107282910A (en) * | 2017-08-02 | 2017-10-24 | 石狮市森科智能科技有限公司 | A kind of vacuum die casting machine |
| CN109403965B (en) * | 2018-10-16 | 2021-01-29 | 山东东山王楼煤矿有限公司 | Memory cutting device |
| CN109693314A (en) * | 2019-02-26 | 2019-04-30 | 长安大学 | A kind of ground rotation milling attachment containing exciting agency in axis |
| CN114033372B (en) * | 2021-10-25 | 2024-02-23 | 北京天玛智控科技股份有限公司 | Control method and device for fully-mechanized coal mining face |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273771Y (en) * | 1996-05-31 | 1998-02-04 | 上海汉联综机技术公司 | Non-uniform blade cutting drun of coal mining machine |
| CN2426014Y (en) * | 2000-03-07 | 2001-04-04 | 西安科技学院 | Torsion impact type vibration cutting mechamism |
| DE10024129C1 (en) * | 2000-05-18 | 2001-10-31 | Nikolaus Wendel | Hammer boring tool for stone and similar materials has chisel on wobble tube which can be moved radially to centrally running milling drive |
| US8020940B2 (en) * | 2008-11-05 | 2011-09-20 | Gregory Greenspan | Mining and demolition tool |
| CN102071936A (en) * | 2010-12-24 | 2011-05-25 | 陕西陕煤韩城矿业有限公司 | Roller internal rotation coal cutting method of thin coal seam roller coal cutter |
| CN102748025A (en) * | 2011-04-19 | 2012-10-24 | 刘素华 | Cutting coal mining method and device thereof |
| CN102853023B (en) * | 2012-08-13 | 2015-11-18 | 三一重型装备有限公司 | Winning machine cutting part and coal winning machine |
| CN204140064U (en) * | 2014-11-01 | 2015-02-04 | 西安科技大学 | Coal-winning machine vibrating type cutting drum |
| CN104612684A (en) * | 2014-12-15 | 2015-05-13 | 中国矿业大学 | Ultrasonic impact cutting tooth |
| CN205558904U (en) * | 2016-03-22 | 2016-09-07 | 辽宁工程技术大学 | Broken cylinder of vibratory impulse formula large coal and coal -winning machine thereof |
-
2016
- 2016-03-22 CN CN201610164636.9A patent/CN105604549B/en active Active
- 2016-12-27 LU LU93438A patent/LU93438B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN105604549B (en) | 2017-09-26 |
| CN105604549A (en) | 2016-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20170601 |