CN203822305U - Coal cutter as well as coal cutter cutting unit and drive system thereof - Google Patents
Coal cutter as well as coal cutter cutting unit and drive system thereof Download PDFInfo
- Publication number
- CN203822305U CN203822305U CN201420118193.6U CN201420118193U CN203822305U CN 203822305 U CN203822305 U CN 203822305U CN 201420118193 U CN201420118193 U CN 201420118193U CN 203822305 U CN203822305 U CN 203822305U
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- Prior art keywords
- winning machine
- cutting part
- transmission system
- bearing
- machine cutting
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- Expired - Lifetime
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- 238000005520 cutting process Methods 0.000 title claims abstract description 98
- 239000003245 coal Substances 0.000 title abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 230000009467 reduction Effects 0.000 claims description 42
- 210000003371 toe Anatomy 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000000979 retarding effect Effects 0.000 abstract 5
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 238000000926 separation method Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a coal cutter as well as a coal cutter cutting unit and a drive system thereof, wherein the transmission system of the coal cutter cutting unit is arranged in a housing of the coal cutter cutting unit and comprises a straight-tooth retarding mechanism and a planetary retarding mechanism; the planetary retarding mechanism comprises a planetary reducer of which the input end is engaged with the output end of the straight-tooth retarding mechanism, and a spline housing which is provided with an internal spline and connected with a spline at the output end of the planetary reducer by use of the internal spline; and the spline housing is further connected with a cutting roller. The output end of the drive system of the coal cutter is of a spline housing connection structure, in other words, the spline housing is arranged between the planetary reducer and the cutting roller so that the planetary reducer only bears torque rather than axial force and radial force generated by the cutting roller during working; as a result, the stress separation of the transmission system of the coal cutter cutting unit from the housing is realized, and therefore the stability and reliability of the transmission system of the coal cutter cutting unit can be improved and the service life of the planetary retarding mechanism is increased.
Description
Technical field
The utility model relates to mechanical transmissioning technology, particularly a kind of coal-winning machine, winning machine cutting part and winning machine cutting part transmission system.
Background technology
The cutting units of coal-winning machine comprises rocking arm and cutting drum; in the housing of rocking arm, multi-stage gear driving system is installed; by this transmission system by coal-winning machine cutting motor power transmission the cutting drum mechanism to cutting units, drive cutting drum to rotate, complete the coal breakage of coal-winning machine and the work of coalingging.
On the one hand, the gear reduction that the cutting units of coal-winning machine adopts, in order to reach the requirement of gearratio, the general combining form that adopts straight-tooth deceleration and planetary reduction gear, mostly being three grades of straight-tooth slows down and adds one-level planetary reduction gear or two-stage straight-tooth and slow down and add the form of structure of two-stage planetary reduction gear, driving-chain is longer, and complex structure has increased production maintenance cost and potential faults point.
On the other hand, the drive mechanism of winning machine cutting part is generally placed on planetary gear speed reducing mechanism the end of driving-chain, exporting external splines by planetary reduction gear directly connects and drives coal-winning machine square toes, the work of drive cutting drum, therefore planetary gear speed reducing mechanism is not only bearing the moment of torsion that the tangential force that produces due to the work of coal-winning machine cutting drum is transformed, also bearing part axial force and the radial load transmitted by bearing, thereby affect the stationarity of winning machine cutting part transmission system and the application life of bearing, and planetary reduction gear is produced to action moment, affect the rigidity of planetary reduction gear, thereby reduce the application life of planetary reduction gear.
Utility model content
In view of this, the utility model proposes a kind of winning machine cutting part transmission system, it can change the stress form of planetary gear speed reducing mechanism, the moment of torsion producing while making planetary reduction gear only bear cutting drum work, do not bear axial force and radial load that cutting drum work produces, reduce the stressed of planetary gear speed reducing mechanism, improve stability and the reliability of winning machine cutting part transmission system, and promote the application life of planetary gear speed reducing mechanism.The utility model also proposes a kind of coal-winning machine and winning machine cutting part, the two all has above-mentioned winning machine cutting part transmission system, to change the stress form of planetary gear speed reducing mechanism, improve stability and the reliability of winning machine cutting part transmission system, and promote the application life of planetary gear speed reducing mechanism.
On the one hand, the utility model provides a kind of winning machine cutting part transmission system, is arranged in the housing of winning machine cutting part, comprises straight-tooth reducing gear and planetary gear speed reducing mechanism, and described planetary gear speed reducing mechanism comprises:
Planetary reduction gear, the input of described planetary reduction gear engages with the output of described straight-tooth reducing gear;
Spline housing, has internal spline, and described spline housing is by the output spline joint of described internal spline and described planetary reduction gear, and described spline housing is also connected with the cutting drum of described winning machine cutting part.
Further, described planetary gear speed reducing mechanism also comprises the clutch shaft bearing and the clutch shaft bearing seat that support described spline housing, and described clutch shaft bearing is connected with described housing by described clutch shaft bearing seat.
Further, described clutch shaft bearing is taper roll bearing.
Further, described planetary gear speed reducing mechanism also comprises the second bearing and the 3rd bearing that support described planetary reduction gear, and described the second bearing and described the 3rd bearing lay respectively at rib side one end of described planetary reduction gear and adopt sky side one end.
Further, described the second bearing and described the 3rd bearing are rolling bearing.
Further, described straight-tooth reducing gear is double reduction mechanism, and described planetary gear speed reducing mechanism is primary speed-down mechanism.
Further, described spline housing is connected with described cutting drum by square toes.
Further, described spline housing also has external splines, and described spline housing is connected with described square toes with bolt by described external splines, and described square toes are fixedly connected with described cutting drum.
On the other hand, the utility model also provides a kind of winning machine cutting part, is provided with housing and cutting drum, is also provided with the winning machine cutting part transmission system described in as above any one.
Another aspect, the utility model also provides a kind of coal-winning machine, and it is provided with winning machine cutting part as above.
Coal-winning machine of the present utility model and winning machine cutting part are provided with identical winning machine cutting part transmission system, the output of this coal-winning machine transmission system adopts and connects spline housing structure, be, between planetary reduction gear and cutting drum, spline housing is set, change the stress form of planetary gear speed reducing mechanism, make planetary reduction gear only bear moment of torsion, and do not bear cutting drum work produce axial force and radial load, realize winning machine cutting part transmission system and the stressed of housing separates, both stability and the reliability of winning machine cutting part transmission system had been improved, promote again the application life of planetary gear speed reducing mechanism.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the winning machine cutting part of the utility model embodiment, for the ease of understanding, also shows the cutting motor of coal-winning machine in this figure.
Description of reference numerals
1-cutting motor; 2-the first straight-tooth reducing gear; 3-the second straight-tooth reducing gear; 4-housing; 5-planetary reduction gear; 6-clutch shaft bearing; 7-spline housing; 8-square toes; 9-the second bearing; 10-the 3rd bearing; 11-cutting drum.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The structural representation of the winning machine cutting part that Figure 1 shows that the utility model embodiment of the present utility model, for the ease of understanding, also shows the cutting motor of coal-winning machine in this figure.
As shown in Figure 1, the winning machine cutting part that the utility model embodiment provides comprises housing 4, the sky side one end of adopting of housing 4 is provided with cutting motor 1, rib side one end of housing 4 is provided with cutting drum 11, housing 4 inside are provided with transmission system, and this transmission system is connected with cutting motor 1 and cutting drum 11 respectively, and the power that cutting motor 1 is exported transfers to cutting drum 11 through transmission system, drive cutting drum 11 to work, realize coal-winning machine coal breakage and the work of coalingging.
Wherein, the winning machine cutting part transmission system that this transmission system provides for another embodiment of the utility model, this winning machine cutting part transmission system is arranged in above-mentioned housing 4, comprise straight-tooth reducing gear and planetary gear speed reducing mechanism, this planetary gear speed reducing mechanism comprises planetary reduction gear 5 and spline housing 7, the input (being the sun gear of planetary reduction gear 5) of planetary reduction gear 5 engages with the output of straight-tooth reducing gear, spline housing 7 has internal spline, and spline housing 7 is by the output spline joint of internal spline and planetary reduction gear 5, spline housing 7 is also connected with the cutting drum 11 of winning machine cutting part.
As shown in Figure 1, more specifically, straight-tooth reducing gear comprises the first straight-tooth reducing gear 2 and the second straight-tooth reducing gear 3 of intermeshing connection, and the first straight-tooth reducing gear 2 is also connected with cutting motor 1, and preferably key connects, the second straight-tooth reducing gear 3 is connected with a joggle with the sun gear of planetary reduction gear 5.Planetary gear speed reducing mechanism also comprises the second bearing 9 and the 3rd bearing 10 that support planetary reduction gear 5, the second bearing 9 is positioned at rib side one end of planetary reduction gear, what the 3rd bearing 10 was positioned at planetary reduction gear adopts sky side one end, the second bearing 9 and the 3rd bearing 10 all can adopt common rolling bearing, as ball bearing or roller bearing.The output preferred disposition of planetary reduction gear 5 is the external splines structure matching with spline housing 7, and forms spline joint with the internal spline of spline housing 7.Planetary gear speed reducing mechanism also comprises the clutch shaft bearing 6 and the clutch shaft bearing seat that support this spline housing 7, and clutch shaft bearing 6 is preferably taper roll bearing, and clutch shaft bearing 6 is connected with housing 4 by this clutch shaft bearing seat; Spline housing 7 is connected with cutting drum 11 by square toes 8, particularly, spline housing 7 also has external splines, and spline housing 7 is connected with square toes 8 with bolt by external splines, square toes 8 are fixedly connected with cutting drum 11, and then form and be rigidly connected between spline housing 7 and cutting drum 11.
In addition, 1 is known by reference to the accompanying drawings, and in this embodiment, straight-tooth reducing gear is the double reduction mechanism that the first straight-tooth reducing gear 2 and the second straight-tooth reducing gear 3 form, and planetary gear speed reducing mechanism is still primary speed-down mechanism, to shorten the driving-chain of transmission system.
When work, cutting motor 1 outputting power, this power is passed to the first straight-tooth reducing gear 2, the second straight-tooth reducing gear 3 and planetary gear speed reducing mechanism successively, in planetary gear speed reducing mechanism, power is passed to square toes 8 successively after planetary reduction gear 5 and spline housing 7, and then square toes 8 drive cutting drum 11 to carry out work.When in cutting drum the 11 cut coal seam, can produce axial force, radial load and tangential force, wherein, tangential force changes into the moment of torsion of cutting drum 11, and be passed to spline housing 7 through square toes 8, and further act on planetary reduction gear 5, owing to being spline joint between spline housing 7 and planetary reduction gear 5, therefore, transmitting torque only between spline housing 7 and planetary reduction gear 5; Be passed on spline housing 7 through square toes 8 for the axial force producing and radial load, and then be passed to supporting spline housing 7 clutch shaft bearing 6, and clutch shaft bearing 6 is connected with housing 4 by clutch shaft bearing seat, thereby this axial force and radial load be passed to housing 4, finally born by housing 4.
Because clutch shaft bearing 6 can be subject to the effect of axial force and radial load, thereby in the above-described embodiments, clutch shaft bearing 6 has preferably adopted taper roll bearing, also can adopt other types can bear axial force and the rolling bearing of radial load effect or the combination of rolling bearing at other embodiment simultaneously; And planetary reduction gear 5 is only subject to the effect of moment of torsion, substantially can not bear axial force and radial load, therefore, the second bearing and the 3rd bearing can adopt to be compared the common rolling bearing that clutch shaft bearing 6 is less and supports.
Compared with winning machine cutting part of the prior art or winning machine cutting part transmission system, the winning machine cutting part that the utility model provides and winning machine cutting part transmission system tool have the following advantages:
1, the output of transmission system adopts and connects spline housing structure, be, between planetary reduction gear and square toes, spline housing is set, change the stress form of planetary gear speed reducing mechanism, make planet carrier only bear moment of torsion, and do not bear cutting drum work produce axial force and radial load, realize winning machine cutting part transmission system and the stressed of housing separates, both improved stability and the reliability of winning machine cutting part transmission system, promoted again the application life of planetary gear speed reducing mechanism;
2, the gearratio of straight-tooth reducing gear is redesigned, the double reduction form that adopts the first straight-tooth reducing gear and the second straight-tooth reducing gear to form, and planetary gear speed reducing mechanism still adopts primary speed-down form of structure, shortening can winning machine cutting part driving-chain, simplify transmission mechanism, ensure that transmission system is simple, reliable;
3,, according to the loading characteristic of planetary gear speed reducing mechanism, adopt larger roller bearing supporting for the spline housing of setting up, so that it bears larger active force; Adopt less plain bearing supporting for planetary reduction gear, cost-saving.
Correspondingly, embodiment of the present utility model also provides a kind of coal-winning machine, and it is provided with above-mentioned winning machine cutting part, therefore has advantages of same as described abovely, repeats no more.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a winning machine cutting part transmission system, is arranged in the housing (4) of winning machine cutting part, comprises straight-tooth reducing gear and planetary gear speed reducing mechanism, it is characterized in that, described planetary gear speed reducing mechanism comprises:
Planetary reduction gear (5), the input of described planetary reduction gear (5) engages with the output of described straight-tooth reducing gear;
Spline housing (7), has internal spline, and described spline housing (7) is by the output spline joint of described internal spline and described planetary reduction gear (5), and described spline housing (7) is also connected with the cutting drum (11) of described winning machine cutting part.
2. winning machine cutting part transmission system according to claim 1, it is characterized in that, described planetary gear speed reducing mechanism also comprises clutch shaft bearing (6) and the clutch shaft bearing seat of the described spline housing of supporting (7), and described clutch shaft bearing (6) is connected with described housing (4) by described clutch shaft bearing seat.
3. winning machine cutting part transmission system according to claim 2, is characterized in that, described clutch shaft bearing (6) is taper roll bearing.
4. winning machine cutting part transmission system according to claim 2, it is characterized in that, described planetary gear speed reducing mechanism also comprises the second bearing (9) and the 3rd bearing (10) of the described planetary reduction gear of supporting (5), and described the second bearing (9) and described the 3rd bearing (10) lay respectively at rib side one end of described planetary reduction gear (5) and adopt sky side one end.
5. winning machine cutting part transmission system according to claim 4, is characterized in that, described the second bearing (9) and described the 3rd bearing (10) are rolling bearing.
6. according to the winning machine cutting part transmission system described in any one in claim 1-5, it is characterized in that, described straight-tooth reducing gear is double reduction mechanism, and described planetary gear speed reducing mechanism is primary speed-down mechanism.
7. winning machine cutting part transmission system according to claim 6, is characterized in that, described spline housing (7) is connected with described cutting drum (11) by square toes (8).
8. winning machine cutting part transmission system according to claim 7, it is characterized in that, described spline housing (7) also has external splines, and described spline housing (7) is connected with described square toes (8) with bolt by described external splines, and described square toes (8) are fixedly connected with described cutting drum (11).
9. a winning machine cutting part, is provided with housing (4) and cutting drum (11), it is characterized in that, is also provided with the winning machine cutting part transmission system described in any one in claim 1-8.
10. a coal-winning machine, is characterized in that, is provided with winning machine cutting part as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118193.6U CN203822305U (en) | 2014-03-14 | 2014-03-14 | Coal cutter as well as coal cutter cutting unit and drive system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118193.6U CN203822305U (en) | 2014-03-14 | 2014-03-14 | Coal cutter as well as coal cutter cutting unit and drive system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822305U true CN203822305U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118193.6U Expired - Lifetime CN203822305U (en) | 2014-03-14 | 2014-03-14 | Coal cutter as well as coal cutter cutting unit and drive system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822305U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455224A (en) * | 2014-11-13 | 2015-03-25 | 重庆大学 | Coal cutter infinitely-variable-speed cutting transmission system based on rotation speed coupling |
| CN104564054A (en) * | 2015-01-15 | 2015-04-29 | 商巧玲 | Coal mining device |
| CN107623407A (en) * | 2017-09-11 | 2018-01-23 | 中国矿业大学 | A kind of the high reliability transmission system and sensorless strategy method of magneto driving |
| CN109488294A (en) * | 2019-01-04 | 2019-03-19 | 天地科技股份有限公司上海分公司 | Mars Miner cutting mechanism with big slewing range |
| CN109538203A (en) * | 2019-01-14 | 2019-03-29 | 太重煤机有限公司 | The cutting means of vertical shearer |
-
2014
- 2014-03-14 CN CN201420118193.6U patent/CN203822305U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455224A (en) * | 2014-11-13 | 2015-03-25 | 重庆大学 | Coal cutter infinitely-variable-speed cutting transmission system based on rotation speed coupling |
| CN104564054A (en) * | 2015-01-15 | 2015-04-29 | 商巧玲 | Coal mining device |
| CN107623407A (en) * | 2017-09-11 | 2018-01-23 | 中国矿业大学 | A kind of the high reliability transmission system and sensorless strategy method of magneto driving |
| CN109488294A (en) * | 2019-01-04 | 2019-03-19 | 天地科技股份有限公司上海分公司 | Mars Miner cutting mechanism with big slewing range |
| CN109488294B (en) * | 2019-01-04 | 2024-01-26 | 天地科技股份有限公司上海分公司 | Mining machine cutting mechanism with large speed change range |
| CN109538203A (en) * | 2019-01-14 | 2019-03-29 | 太重煤机有限公司 | The cutting means of vertical shearer |
| CN109538203B (en) * | 2019-01-14 | 2024-04-02 | 太重煤机有限公司 | Cutting device of vertical drum shearer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |