CN107654229A - A kind of anti-wall caving coal-winning machine of high working face - Google Patents
A kind of anti-wall caving coal-winning machine of high working face Download PDFInfo
- Publication number
- CN107654229A CN107654229A CN201711122182.XA CN201711122182A CN107654229A CN 107654229 A CN107654229 A CN 107654229A CN 201711122182 A CN201711122182 A CN 201711122182A CN 107654229 A CN107654229 A CN 107654229A
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- rotating mechanism
- cutting
- coal
- housing
- hydraulic cylinder
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- 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.)
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000005520 cutting process Methods 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 27
- 238000005065 mining Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
- E21C31/04—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices imparting both a rotary and reciprocating motion
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
A kind of anti-wall caving coal-winning machine of high working face, the both ends of fuselage connect with rotating mechanism and cutting mechanism respectively；Rotating mechanism is made up of housing, installation electric rotating machine in the housing and its transmission mechanism and two auxiliary hydraulic cylinders on rotating mechanism housing and body shell；The rocking arm of cutting mechanism connects with the hydraulic cylinder of heightening on rotating mechanism housing；Cutting drum is centering type.The coal-winning machine can be such that cutting mechanism is tilted to exploitation rib side by rotating mechanism, and certain inclination angle is presented in the rib after cut, be not required to externally reinforced can effectively prevent wall caving；By critical piece of two auxiliary hydraulic cylinders as stress when rotating mechanism rotates, and the cutting height of cutting drum is adjusted by the hydraulic cylinder of heightening on rotating mechanism housing and rocking arm, is hardly damaged during equipment operation, it can be ensured that keep the safety in production；Upper and lower ends line keep level after cutting drum tilts, it is ensured that exploitation working face is horizontal to be promoted.
Description
Technical field
The present invention relates to mining technology, particularly a kind of anti-wall caving coal-winning machine of high working face.
Background technology
In recent years, as what the maturation and mining of Coal Mining Technology were equipped updates, the big of 3.5m~6m is adopted
Height working face more and more starts input exploitation and production.No matter large-mining-height working surface is from coal resources quality or from exploitation
For standpoint of efficiency, there is significant advantage, but exploited using existing coal-winning machine, wall caving problem becomes increasingly conspicuous, serious shadow
Ring the personal safety of large cutting height workface working face staff.
Existing coal-winning machine is typically by can be along the fuselage that drag conveyor moves and the cutting mechanism to connect with fuselage both ends
Form.The rocking arm and formed with the cutting drum that the rocking arm other end connects, cutting drum that cutting mechanism is hinged by one end with fuselage
Its upper-lower height is adjusted by the hydraulic cylinder that one end and fuselage are be hinged, the other end and rocking arm are be hinged.During coal mining, because on cutting drum
Under in vertical state, coal mining face is also vertical up and down, for large-mining-height working surface, it is impossible to prevent wall caving.To prevent wall caving, mesh
It is preceding mostly to use following methods：
A kind of method is to realize anti-wall caving by coal seam shallow foundation pits.Although this method can prevent to a certain extent
The only wall caving of production face, but need a large amount of water fillings, complex procedures, the quality and calorific value to cut coal in coal seam to substantially reduce,
And extra increase hydraulic pipeline is needed to a large amount of water fillings in underground, increase the production cost of enterprise.
Another method is to prevent roof fall before coal wall caving and frame by hydraulic support.This method is needed to original hydraulic pressure branch
Frame is transformed, and the mutual cooperation relation of hydraulic support and coal-winning machine is also contemplated that in recovery process, for super great mining height
It is poor to exploit working face applicability.
It is by preventing coal wall caving to rib slip casting to have a kind of method again.Although this method can effectively reduce production face
The probability of wall caving, but exploit after coal with it is grout curing together with, not only influence Coal Quality, and be not easy to sieve and select
Take.
4th kind of method is to turn forward to help to prevent limited step using coal-winning machine complete machine.Although this method can be to a certain extent
Wall caving is prevented, but complete machine tilts the pressure increased to side piston shoes, accelerates the life time decay of piston shoes, and it is easy to a certain extent
Cause coal-winning machine complete machine to tumble, largely effect on the production efficiency of working face.
CN106437701A patent documents disclose a kind of anti-wall caving coal-winning machine.The coal-winning machine is to utilize to be arranged on fuselage
The revolving member band motion rocker arm that can be rotated upwardly and downwardly rotates upwardly and downwardly, for adjusting the cutting height of cutting drum；Utilize fixed installation
The rocking arm that motor and gear drive driving in revolving member are fixedly connected with driven gear axially rotates, and drives and cuts
Drum-inclined is cut, makes the coal surface after cut that certain inclination angle be presented with coal mining area, reaches the purpose of anti-wall caving.This is adopted
Although coal machine can make rocking arm drive cutting drum to tilt in theory, following technical problem there are in fact：
1st, because the rocking arm of high working face coal winning machine and the quality of roller are very great, and roller born in cutting course it is huge
Heavy load, to take and be directly fixedly connected with rocking arm with the driven gear in gear drive, gear drive stress is excessive,
Easily damage, it is impossible to ensure downhole safety production and efficiently mine.
2nd, the method that specification does not provide revolving member rotation, the cut of cutting drum is adjusted by revolving member rotation
Highly, whole gravity of rocking arm and cutting drum are applied on revolving member, it is difficult to ensure that the safe operation of equipment.
3rd, traditional coal mining machine roller in an inclined state cut when, the face direction of propulsion of adopting can be tilted down constantly, be deviateed former
The flat direction of propulsion of coal seam water come, deviates exploration mined bed, and production efficiency is low.
4th, it is arranged on from its Figure of description, the gear drive of the coal-winning machine in fuselage, intermeshing two
Individual gear is driven side by side, and longitudinal highly significant of coal-winning machine fuselage certainly will be caused to increase, and the center of coal-winning machine is offset up, and is mined
The rocking arm and roller of machine easily cause coal-winning machine to overturn when turning forward；And limited this structure not by the underground confined space
Easily realize.
The content of the invention
To solve technical problem existing for above-mentioned prior art, the present invention provides a kind of anti-wall caving coal-winning machine of high working face.
The anti-wall caving coal-winning machine of high working face provided by the invention, including the fuselage that can be moved along drag conveyor；The two of fuselage
End connects with rotating mechanism respectively；Rotating mechanism connects with cutting mechanism.
The rotating mechanism includes rotating mechanism housing, electric rotating machine, decelerator, power transmission shaft, fixed support shaft, first auxiliary
Help hydraulic cylinder and the second auxiliary hydraulic cylinder；Wherein electric rotating machine is fixedly mounted in rotating mechanism housing, and electric rotating machine passes through institute
State decelerator and power transmission shaft with the fixed support shaft to connect, fixed support shaft is fixedly mounted in body shell；Rotating mechanism
Housing is hinged by the first auxiliary hydraulic cylinder and the second auxiliary hydraulic cylinder with body shell.
The cutting mechanism includes rocking arm and the cutting drum to connect by power transmission shaft with rocking arm；The rear end of wherein rocking arm leads to
Cross and heighten hydraulic cylinder and the rotating mechanism housing hinge on rotating mechanism housing；Cutting drum be 10 ° of gradient~
30 ° of eccentric cutting drum.
Compared with prior art, coal-winning machine of the present invention has the advantages that：
1st, by rotating mechanism can realize cutting mechanism to coal mining face side tilt, make the coal surface after cut with
Certain inclination angle is presented in coal mining area, can effectively prevent wall caving without externally reinforced, use manpower and material resources sparingly, reduction is produced into
This.
2nd, the rotation of rotating mechanism is completed jointly by motor and its transmission mechanism with two auxiliary hydraulic cylinders, by two auxiliary
Critical piece of the hydraulic cylinder as stress, it can be ensured that rotating mechanism is hardly damaged, and ensures downhole production safety.
3rd, the cutting height of cutting drum heightens hydraulic cylinder regulation by what is be hinged on rotating mechanism housing with rocking arm,
The safe operation of equipment when can ensure that regulation cutting height.
4th, using with gradient eccentric cutting drum, its upper and lower ends line and horizontal plane keeping parallelism after inclination can be most
Effective cut in coal seam at top plate and bottom plate is realized to limits, simultaneously, it is ensured that coal mining working face is horizontal to be promoted, and is avoided
The drawbacks of conventional tumble causes advance of the face direction to tilt down after tilting.
4th, the present invention can adjust coal surface and the angle at coal mining area inclination angle at any time according to the change of mining height, and cooperation makes
With the eccentric cutting drum of different gradients, the wall caving protection in the coal seam of different mining heights can be applied to, it is applied widely.
5th, rotating mechanism of the present invention is compact-sized, is not limited by the underground confined space.
Brief description of the drawings
Fig. 1 is the schematic diagram (3 dimensional drawing) of the anti-wall caving coal-winning machine of high working face of the present invention；
Fig. 2 is along the transverse sectional view of right side rotating mechanism in Fig. 1；
Fig. 3 is along the longitudinal sectional view of left pivot movement mechanism in Fig. 1；
Fig. 4 is Fig. 1 side view；
Fig. 5 is that Fig. 1 coal-winning machines are used for large cutting height workface schematic diagram.
Symbol description in figure：1- drag conveyors；2- cutting drums；3- rotating mechanism housings；4- body shells；5- first
Auxiliary hydraulic cylinder；6- rocking arms；7- scraper plates；8- heightens hydraulic cylinder；9- walking piston shoes；10- guide slip shoes；11- (rocking arm and whirler
Structure housing) jointed shaft；12- pin rows；The auxiliary hydraulic cylinders of 13- second；14- motor fixing plates；15- decelerators；16- power transmission shafts；
17- fixes support shaft；18- supports axis fixing plate；19- fixed plate fastening bolts；4- body shells；20- support shaft supporting plates；
21- electric rotating machines；22- electric rotating machine fastening bolts；23- exploits rib.
Embodiment
The present invention is described further below in conjunction with accompanying drawing.
With reference to Fig. 1, the anti-wall caving coal-winning machine of high working face of the present invention, including the fuselage that can be moved along drag conveyor 1；Fuselage
Both ends connect with rotating mechanism respectively；Rotating mechanism connects with cutting mechanism.Wherein there are pin row 12 and scraper plate on drag conveyor
7；The underbelly of coal-winning machine has the walking piston shoes 9 and guide slip shoe 10 being hinged with body shell 4, is led by what can be moved along pin row
It is oriented to piston shoes, realizes that coal-winning machine is walked on drag conveyor, the coal under adopting is transported by scraper plate.
With reference to Fig. 2 and Fig. 3, the rotating mechanism includes rotating mechanism housing 3, electric rotating machine 21, decelerator 15, power transmission shaft
16th, fixed support shaft 17, the first auxiliary hydraulic cylinder 5 and the second auxiliary hydraulic cylinder 13；Wherein electric rotating machine motor fixing plate 14
Be fixedly mounted on electric rotating machine fastening bolt 22 in rotating mechanism housing, electric rotating machine by the decelerator and power transmission shaft with
The fixed support shaft connects, fixed support shaft support shaft supporting plate 20, support axis fixing plate 18 and fixed plate fastening bolt
19 are fixedly mounted in body shell；Rotating mechanism housing passes through the first auxiliary hydraulic cylinder 5 and the second auxiliary hydraulic cylinder 13 and machine
Body housing hinge.
With reference to Fig. 1, Fig. 2 and Fig. 4, the cutting mechanism includes rocking arm 6 and connected by power transmission shaft (not shown) with rocking arm
Cutting drum 2；Wherein the middle part of rocking arm is installed by jointed shaft 11 and rotating mechanism housing hinge, the lower end of rocking arm be hinged
The hydraulic stem for heightening hydraulic cylinder 8 on rotating mechanism housing is hinged, and makes rocking arm by heightening the flexible of cylinder hydraulic bar to cut with scissors
Rotated centered on spindle, and then adjust the cutting height of cutting drum；As shown in figure 4, cutting drum is eccentric cutting drum, its
Gradient is 10 °~30 ° (specific gradient is selected according to different mining heights).
With reference to Fig. 5, when the coal-winning machine is used to exploit high working face, first according to the height H of exploitation rib 23 and exploitation rib need
It is matched that the inclination alpha wanted chooses the eccentric cutting drum that gradient is α.In recovery process, the rotation at both ends is driven by fuselage
Mechanism and cutting mechanism are back and forth walked on drag conveyor, utilize the electric rotating machine inside rotating mechanism and and rotating mechanism
First auxiliary hydraulic cylinder of housing hinge and the second auxiliary hydraulic cylinder, which cooperate, completes the spinning movement of rotating mechanism, realizes and cuts
The side of cutting mill structure to exploitation rib tilts, now cutting drum upper and lower ends line and horizontal plane keeping parallelism, opening after cut
Inclination alpha can be presented in coal mining wall, reach the purpose for preventing wall caving.
The present invention can roll according to the inclination angle of the change adjustment exploitation rib of mining height with the use of the eccentric cut of different gradients
Cylinder, anti-wall caving protection during with suitable for different mining height seam minings.
Claims (1)
1. a kind of anti-wall caving coal-winning machine of high working face, including can be along the mobile fuselage of drag conveyor (1)；The both ends of fuselage respectively with
Rotating mechanism connects；Rotating mechanism connects with cutting mechanism；It is characterized in that：
The rotating mechanism includes rotating mechanism housing (3), electric rotating machine (21), decelerator (15), power transmission shaft (16), fixed branch
Support axle (17), the first auxiliary hydraulic cylinder (5) and the second auxiliary hydraulic cylinder (13)；Wherein electric rotating machine is fixedly mounted on rotating mechanism
In housing, electric rotating machine is connected by the decelerator and power transmission shaft with the fixed support shaft, and fixed support shaft is fixedly mounted
In body shell (4)；Rotating mechanism housing is hinged by the first auxiliary hydraulic cylinder and the second auxiliary hydraulic cylinder with body shell；
The cutting mechanism includes rocking arm (6) and the cutting drum (2) to connect by the power transmission shaft with rocking arm；Wherein rocking arm
Rear end on rotating mechanism housing by heightening hydraulic cylinder (8) and the rotating mechanism housing hinge；Cutting drum is
The eccentric cutting drum that 10 °~30 ° of gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122182.XA CN107654229B (en) | 2017-11-14 | 2017-11-14 | Large-mining-height shearer-preventing coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122182.XA CN107654229B (en) | 2017-11-14 | 2017-11-14 | Large-mining-height shearer-preventing coal cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654229A true CN107654229A (en) | 2018-02-02 |
| CN107654229B CN107654229B (en) | 2024-04-19 |
Family
ID=61121228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711122182.XA Active CN107654229B (en) | 2017-11-14 | 2017-11-14 | Large-mining-height shearer-preventing coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654229B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139001A (en) * | 2018-10-31 | 2019-01-04 | 攀枝花学院 | Double-ended shearer for large-mining-height working surface |
| US11761333B2 (en) | 2020-11-16 | 2023-09-19 | Joy Global Underground Mining Llc | Cutting assembly for longwall mining system |
| US12006824B2 (en) | 2020-11-16 | 2024-06-11 | Joy Global Underground Mining Llc | Cutting assembly for longwall mining system |
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|---|---|---|---|---|
| GB323369A (en) * | 1929-01-02 | 1930-01-02 | Jeffrey Mfg Co | Improvements in or relating to coal cutting or like machines |
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| WO2007106928A1 (en) * | 2006-03-23 | 2007-09-27 | Caldon Mining Pty. Limited | Swivel-head continuous miner |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139001A (en) * | 2018-10-31 | 2019-01-04 | 攀枝花学院 | Double-ended shearer for large-mining-height working surface |
| US11761333B2 (en) | 2020-11-16 | 2023-09-19 | Joy Global Underground Mining Llc | Cutting assembly for longwall mining system |
| US12006824B2 (en) | 2020-11-16 | 2024-06-11 | Joy Global Underground Mining Llc | Cutting assembly for longwall mining system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107654229B (en) | 2024-04-19 |
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