CN204492813U - A kind of coal-winning machine bi-directional rotary double-roller structure - Google Patents
A kind of coal-winning machine bi-directional rotary double-roller structure Download PDFInfo
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- CN204492813U CN204492813U CN201520010142.6U CN201520010142U CN204492813U CN 204492813 U CN204492813 U CN 204492813U CN 201520010142 U CN201520010142 U CN 201520010142U CN 204492813 U CN204492813 U CN 204492813U
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- bevel pinion
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- winning machine
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Abstract
A kind of coal-winning machine bi-directional rotary double-roller structure, mainly solve existing small-sized coal-winning machine and shake violent problem, the utility model provides a kind of coal-winning machine bi-directional rotary double-roller structure, comprises rocking arm, planetary reducer, this structure also comprises front roll end cap, front roll, front roll floating bearing, cone toothed ring gear A, small bevel gear wheel seat, small coning gear shaft, bevel pinion axle sleeve, bevel pinion, back roll, the fastening screw of bevel pinion, back roll floating bearing, rear end cap, the fastening screw of front floating bearing, front floating bearing positioning sleeve, cone toothed ring gear B.The utility model adopts cone tooth transmission system, solve small-sized coal-winning machine and shake violent problem, eliminating because shaking the machinery, the electrical component damage that cause coal-winning machine, considerably reducing business equipment maintenance cost expenditure, and having increased substantially the effective operation time of equipment.
Description
Technical field
The utility model relates to a kind of coal-winning machine bi-directional rotary double-roller structure, belongs to mechanical manufacturing field.
Background technology
Coal-winning machine is the capital equipment of modernization machinery coal mining activity; its major function is under the complete hydraulic prop equipment protection of arranging before channel of coal mining working surface; drag conveyor along parallel mine working face moves back and forth; rocking arm, with the coal seam of the continuous cut work plane of rotating disc cutter, realizes downhole coal mine resource mechanical mining process.
Existing coal-winning machine main composition and abbreviated functional description, coal-winning machine both domestic and external is all have electric control box, left and right towing tank, left and right rocking arm and be arranged on five major parts such as cutting drum (cutterhead) on rocking arm to form.Electric control box internal high-voltage power transmission system and electrical control system, be responsible for the supply of complete machine power electric and system electrical controls; Left and right traction casing built-in motor and power drive system, be responsible for driving coal-winning machine to move back and forth along drag conveyor slide rail; Left and right rocking arm built-in motor and transmission system, be responsible for driving the rotary motion of cut cutterhead.
Cutting drum is Thickwalled cylinder, its outer cylinder surface arranges spiral stock guide, stock guide outer rim in certain direction, certain angle, the pick (also claiming cutter) of equidistant layout some, cylinder is connected securely by the square flange of end, be installed to rocking arm final stage planetary reducer exports on square shaft, under the driving of cutting motor, left and right traction electric machine and transmission system, realize rotating and forward motion, pick invaded coal layer, isolate coal seam, realize continuously, coal winning technology process efficiently.
Existing coal-winning machine is single roller frame, i.e. single rocking arm list roller frame, and rocking arm planetary reducer head roll is by clockwise or be rotated counterclockwise.
In the real process that coal-winning machine is mined, cylinder is continuously one direction rotation under hundreds of kilowatts of high power motors and transmission system drives thereof, pick cylinder being pressed certain space angle layout is constantly alternately cut in coal seam, under the clipping force effect that pick is huge, coal cut from the coal seam of work plane is stripped, coal seam also produces reaction force to the pick of all contacts according to forst law of motion active force and reaction force principle, in the process in coal winning machine cutting bit cut coal seam! The tangent line of pick point place circumference is the position of this reaction force, and direction is the direction that drum rotating is contrary, and the size of reaction force depends on and seam hardness size (namely the size of pick invasiveness is resisted in coal seam).
Tradition single ended shearer is in the course of work of advance limit, limit cut, before cylinder, semi-cylindrical contacts with coal seam, goaf after the relative cut of rear semicircle cylinder, therefore in actual coal mining process, cylinder only has the pick cutting coal seam of half quantity, these picks are suffered makes a concerted effort to be zero from the horizontal direction of the reaction force in coal seam, making a concerted effort of vertical direction is non-vanishing, the size of power is relevant with seam hardness, seam hardness is higher, this vertical direction is made a concerted effort larger, produces many disadvantageous, serious impacts to the normal work of coal-winning machine.
Concrete impact is summarized as follows:
In coal-winning machine coal mining process, the vertical resultant of this large minor cycle pulsatile change must cause coal-winning machine complete machine to shake, especially low seam mining machinery and the higher operating mode of seam hardness affect huge, coal-winning machine will be made to produce strenuous vibration, coal machine normally cannot be worked, even cause the direct damage of coal-winning machine mechanical part, electric component;
Reduce coal-winning machine operating efficiency, the essence of coal-winning machine vibrations is that coal-winning machine is lightweight, the making a concerted effort of self gravity and above-mentioned vertical direction reaction force be in the same order of magnitude, namely gravity cannot overcome the impact of effect counter-force, reaction force destroys stable equipment operation, produces vibrations, and the Microscopic of vibrations is then that pick point slips on hard coal seam, and do not make coal strip down from coal seam, affect coal-winning machine coal mining activity efficiency.
By above-mentioned analysis, I thinks that existing coal-winning machine exists technological deficiency, namely single cylinder list revolving structure design is unreasonable, and this spline structure certainly leads to the huge reaction force of vertical direction, and this reaction force is large especially for the impact of little tonnage and light body low seam mining machinery.
Roller frame design is unreasonable make the strenuous vibration problem in light body coal-winning machine coal mining process cannot obtain always basic, effectively solve.
Utility model content
For the problems referred to above, technical problem to be solved in the utility model is to provide a kind of coal-winning machine bi-directional rotary double-roller structure.Single roller frame Curve guide impeller that original one direction rotates by the utility model is bi-directional rotary double-roller structure, adopt cone tooth transmission system, solve small-sized coal-winning machine and shake violent problem, eliminate because shaking the machinery, the electrical component damage that cause coal-winning machine, considerably reduce business equipment maintenance cost expenditure, and increase substantially the effective operation time of equipment.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of coal-winning machine bi-directional rotary double-roller structure, comprises rocking arm, planetary reducer, this structure also comprises front roll end cap, front roll, front roll floating bearing, cone toothed ring gear A, small bevel gear wheel seat, small coning gear shaft, bevel pinion axle sleeve, bevel pinion, back roll, the fastening screw of bevel pinion, back roll floating bearing, rear end cap, the fastening screw of front floating bearing, front floating bearing positioning sleeve, cone toothed ring gear B; Described front roll is installed on planetary reducer shell by inner front roll floating bearing, be locked by the fastening screw of bevel pinion, front floating bearing positioning sleeve, and be fixedly connected with by the flange of the square hole on front roll end cap with planetary reducer output shaft; Cone toothed ring gear A is arranged on front roll inner flange by bolt, flat key; Bevel pinion is installed on small bevel gear wheel seat by small coning gear shaft, bevel pinion axle sleeve and the fastening screw of bevel pinion and forms bevel pinion assembly, and then bevel pinion component assembling is on planetary reducer shell; Back roll is fixed on planetary reducer shell by back roll floating bearing, and cone toothed ring gear B is fixed on the inner flange of back roll by bolt, flat key, and rear end cap is fixed on back roll by bolt.
The cone toothed ring gear A of described front roll and the cone toothed ring gear B of back roll and bevel pinion positive engagement.
The beneficial effects of the utility model:
The low seam mining machinery of bi-directional rotary twin-roll of the present utility model, the pick of equal number is arranged on forward and backward cylinder by identical angle, in the operation process in cut coal seam, the cutting coal direction of pick is contrary, and quantity is equal, so no matter soft seam or hard coal seam, coal seam is all that equal and opposite in direction, direction are contrary to the reaction force that the pick on cylinder produces.It can thus be appreciated that coal seam acts on horizontal direction on rocker arm of coal mining machine and makes a concerted effort to be zero, vertical direction be also zero with joint efforts.
By above-mentioned analysis, the coal seam reaction force causing the cycle of strenuous vibration to pulse in traditional coal-winning machine work can be known, in bi-directional rotary double-roller structure of the present invention, eliminate because of the effect of cancelling out each other, therefore the technical solution of the utility model fundamentally can improve coal-winning machine, especially low seam mining machinery and other small-sized coal-winning machine coal mining activities time complete machine stress, fundamentally can eliminate the root producing strenuous vibration, the small-sized coal-winning machine of thorough solution shakes violent problem, eliminate because shaking the machinery causing coal-winning machine, electrical component damage, considerably reduce business equipment maintenance cost expenditure.
Owing to solving the problem of equipment vibrations at all, greatly reduce the frequency of device fails, increased substantially the effective operation time of equipment, this creates huge economic benefit by for coal mining enterprise.
During the coal-winning machine cut coal seam operation of bi-directional rotary twin-roll, pick has traditional unidirectional external force to the active force that coal seam applies, become two-way external force, the size of power is no longer relevant with coal-winning machine own wt, only relevant with cutting motor and transmission system thereof, the hardness in small-sized coal-winning machine cut coal seam can be improved like this, significantly can widen the seam hardness scope that small-sized coal-winning machine adapts to.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1-2, a kind of coal-winning machine bi-directional rotary double-roller structure, comprises rocking arm 1, planetary reducer 2, this structure also comprises front roll end cap 3, front roll 4, front roll floating bearing 5, cone toothed ring gear A6, small bevel gear wheel seat 7, small coning gear shaft 8, bevel pinion axle sleeve 9, bevel pinion 10, back roll 11, the fastening screw 12 of bevel pinion, back roll floating bearing 13, rear end cap 14, the fastening screw 15 of front floating bearing, front floating bearing positioning sleeve 16, cone toothed ring gear B17; Described front roll 4 is installed on planetary reducer 2 shell by inner front roll floating bearing 5, be locked by the fastening screw of bevel pinion 12, front floating bearing positioning sleeve 16, and be fixedly connected with by the flange of the square hole on front roll end cap 3 with planetary reducer 2 output shaft; Cone toothed ring gear A6 is arranged on front roll 4 inner flange by bolt, flat key; Bevel pinion 10 is installed on small bevel gear wheel seat 7 by the fastening screw 12 of small coning gear shaft 8, bevel pinion axle sleeve 9 and bevel pinion and forms bevel pinion assembly, and then bevel pinion component assembling is on planetary reducer 2 shell; Back roll 11 is fixed on planetary reducer 2 shell by back roll floating bearing 14, and cone toothed ring gear B17 is fixed on by bolt, flat key on the inner flange of back roll 11, and rear end cap 14 is fixed on back roll 11 by bolt.
The cone toothed ring gear A6 of described the front roll 4 and cone toothed ring gear B17 of back roll 11 and bevel pinion 10 positive engagement.
During use, after barrel drive motors obtains electric startup, by rocking arm 1 gear-box and final stage planetary reducer 2 outputting power, front roll 4 drives rotate motion at motor, reducing gear, cone toothed ring gear A6 in front roll 4 engages with bevel pinion 10, rotary motion is passed to the cone toothed ring gear B of back roll 11 by bevel pinion 10, and then drive back roll 11 that counter rotational movement occurs, in this bevel gear engaged transmission, achieve the gyration in the other direction of front and back cylinder constant speed, namely achieve the transmission process of bi-directional rotary twin-roll.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a coal-winning machine bi-directional rotary double-roller structure, comprises rocking arm, and planetary reducer is characterized in that, this structure also comprises front roll end cap, front roll, front roll floating bearing, cone toothed ring gear A, small bevel gear wheel seat, small coning gear shaft, bevel pinion axle sleeve, bevel pinion, back roll, the fastening screw of bevel pinion, back roll floating bearing, rear end cap, the fastening screw of front floating bearing, front floating bearing positioning sleeve, cone toothed ring gear B; Described front roll is installed on planetary reducer shell by inner front roll floating bearing, be locked by the fastening screw of bevel pinion, front floating bearing positioning sleeve, and be fixedly connected with by the flange of the square hole on front roll end cap with planetary reducer output shaft; Cone toothed ring gear A is arranged on front roll inner flange by bolt, flat key; Bevel pinion is installed on small bevel gear wheel seat by small coning gear shaft, bevel pinion axle sleeve and the fastening screw of bevel pinion and forms bevel pinion assembly, and then bevel pinion component assembling is on planetary reducer shell; Back roll is fixed on planetary reducer shell by back roll floating bearing, and cone toothed ring gear B is fixed on the inner flange of back roll by bolt, flat key, and rear end cap is fixed on back roll by bolt.
2. kind coal-winning machine bi-directional rotary double-roller structure as claimed in claim 1, is characterized in that, the cone toothed ring gear A of described front roll and the cone toothed ring gear B of back roll and bevel pinion positive engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010142.6U CN204492813U (en) | 2015-01-04 | 2015-01-04 | A kind of coal-winning machine bi-directional rotary double-roller structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010142.6U CN204492813U (en) | 2015-01-04 | 2015-01-04 | A kind of coal-winning machine bi-directional rotary double-roller structure |
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| CN204492813U true CN204492813U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520010142.6U Expired - Fee Related CN204492813U (en) | 2015-01-04 | 2015-01-04 | A kind of coal-winning machine bi-directional rotary double-roller structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412986A (en) * | 2020-11-23 | 2021-02-26 | 吕梁学院 | Coal-winning machine walking wheel bearing of convenient maintenance |
-
2015
- 2015-01-04 CN CN201520010142.6U patent/CN204492813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412986A (en) * | 2020-11-23 | 2021-02-26 | 吕梁学院 | Coal-winning machine walking wheel bearing of convenient maintenance |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20180104 |