CN203822303U - Coal mining machine - Google Patents
Coal mining machine Download PDFInfo
- Publication number
- CN203822303U CN203822303U CN201420194897.1U CN201420194897U CN203822303U CN 203822303 U CN203822303 U CN 203822303U CN 201420194897 U CN201420194897 U CN 201420194897U CN 203822303 U CN203822303 U CN 203822303U
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- Prior art keywords
- rocking arm
- traction
- axles
- wheels
- bevel gear
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Abstract
The utility model provides a coal mining machine. The coal mining machine comprises a dragging part and a rocker arm connected with the dragging part, wherein the rocker arm comprises a cutting motor; the cutting motor is in driving connection with a rocker arm planetary speed reducing wheel set through a rocker arm parallel speed reducing wheel set; the rocker arm planetary speed reducing wheel set is in driving connection with a roller by a square head; at least one pair of driving wheel sets in the rocker arm parallel speed reducing wheel set are inclined gear sets. Straight gears in one part of or all parallel speed reducing wheel sets in the rocker arm are replaced into the inclined gear sets so that the strength of a gear can be greatly improved under the same size condition; inclined gears are more stable than straight gear in engagement; the engagement impact is small; the technology is preferable for a thin coal layer coal mining machine.
Description
Technical field
The utility model relates to a kind of coal mine machinery, particularly a kind of coal-winning machine.
Background technology
At present, the rocking arm of coal-winning machine and tractive unit inside are traditionally arranged to be gear reduction, and wherein, the gear reduction of rocking arm is in rocking arm housing, to have rocking arm parallel straight-tooth ratio wheel group and planetary reduction gear wheels.The power of the cutting motor in rocking arm housing is delivered to by transmission system on the cylinder being connected with rocking arm, the effect that is completed coal breakage and coaling by cylinder.
And the gear reduction of shearer hauled-part is, in traction housing, the parallel straight-tooth ratio wheel group of traction and planetary reduction gear wheels are installed, by this transmission system by traction motor for coal mining machine power transmission the road wheel to running part, coal-winning machine is walked on scratch board conveyor.
Transmission system in rocking arm and tractive unit, for adopting straight-tooth transmission, comprises planet part.Straight-tooth transmission, transmission stability is poor, and gear engagement impact is larger.Gear drive in coal-winning machine has vital impact to the product quality of coal-winning machine, and the intensity of raising gear can extend the coal-winning machine overhaul life, reduces maintenance cost.
Therefore under comparable size condition, how improving the intensity of gear, and in the situation that dimensional requirement is dwindled, how to meet the requirement of transmission system, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
In order to overcome above-mentioned defect and the deficiency of prior art, the purpose of this utility model is to provide a kind of coal-winning machine that adopts helical teeth transmission, and to realize the intensity that improves gear under comparable size condition, transmission is more steady.
The utility model provides a kind of coal-winning machine, comprises tractive unit and is connected to the rocking arm on described tractive unit; Described rocking arm comprises cutting motor, and described cutting motor drives connecting rocker arm planetary reduction gear wheels by the parallel deceleration wheels of rocking arm, and described rocking arm planetary reduction gear wheels are driven and connected cylinder by square toes; Wherein,
In the parallel deceleration wheels of described rocking arm, at least one pair of drives wheels to be set to bevel gear set.
Further, in described rocking arm planetary reduction gear wheels, at least one pair of drives wheels to be set to bevel gear set.
Further, described tractive unit comprises traction electric machine, and described traction electric machine is driven and connected traction planetary reduction gear wheels by the parallel deceleration wheels of traction, and described traction planetary reduction gear wheels drive and connect driving wheel; In the parallel deceleration wheels of described traction, at least one pair of drives wheels to be set to bevel gear set.
Further, in described traction planetary reduction gear wheels, at least one pair of drives wheels to be set to bevel gear set.
Further, the parallel deceleration wheels of described rocking arm comprise: rocking arm one axle being coupling with described cutting motor output; Drive rocking arm two axles that are connected by the first bevel gear set with described rocking arm one axle; Drive rocking arm three axles that are connected by the second bevel gear set with described rocking arm two axles; Drive rocking arm four axles that are connected by the 3rd bevel gear set with described rocking arm three axles; Drive rocking arm five axles that are connected by the 4th bevel gear set with described rocking arm four axles; Drive rocking arm six axles that are connected by the 5th bevel gear set with described rocking arm five axles; Drive rocking arm seven axles that are connected by the 6th bevel gear set with described rocking arm six axles; Wherein, the described rocking arm seven axles input of described rocking arm planetary reduction gear wheels that is coupling.
Further, in described rocking arm planetary reduction gear wheels, be provided with helical teeth circle in rocking arm sun helical gear, rocking arm epicyclic singleplent helical gear and rocking arm.
Further, the parallel deceleration wheels of described traction comprise traction one axle being connected with described traction electric machine output; Drive traction two axles that are connected by the 8th bevel gear set with described traction one axle; Drive traction three axles that are connected by the 9th bevel gear set with described traction two axles; Drive traction four axles that are connected by the tenth bevel gear set with described traction three axles; Wherein, the described traction four axles input of described traction planetary reduction gear wheels that is coupling.
Further, in described traction planetary reduction gear wheels, be provided with helical teeth circle in traction sun helical gear, traction epicyclic singleplent helical gear and traction.
Further, described bevel gear set is the helical gears group of engagement.
Compared with prior art the beneficial effects of the utility model are:
A kind of coal-winning machine that the utility model provides, comprises tractive unit and is connected to the rocking arm on tractive unit; Rocking arm comprises cutting motor, and cutting motor drives connecting rocker arm planetary reduction gear wheels by the parallel deceleration wheels of rocking arm, and rocking arm planetary reduction gear wheels are driven and connected cylinder by square toes; In the parallel deceleration wheels of rocking arm, at least one pair of drives wheels to be set to bevel gear set.By straight-tooth wheels in the part or all of parallel deceleration wheels in rocking arm are replaced by bevel gear set, can under comparable size condition, greatly improve the intensity of gear, and helical gear is more steady than spur gear engagement, mesh impact is little, is more suitable for the use in low seam mining machinery.
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:
Figure 1 shows that the structural representation of coal-winning machine in the utility model embodiment;
Figure 2 shows that the structural representation at another visual angle in Fig. 1;
Fig. 3 is the structure enlarged diagram of the left rocking arm of coal-winning machine in the utility model embodiment;
Fig. 4 is the structure enlarged diagram of the left tractive unit of coal-winning machine in the utility model embodiment.
Description of reference numerals:
1, left rocking arm; 2, left tractive unit; 3, right tractive unit; 4, right rocking arm; 5, cutting motor; 6, rocking arm one axle; 7, rocking arm two axles; 8, rocking arm three axles; 9, rocking arm four axles; 10, rocking arm five axles; 11, rocking arm six axles; 12, rocking arm seven axles; 13, rocking arm planetary reduction gear wheels; 13a, rocking arm sun helical gear; 13b, rocking arm epicyclic singleplent helical gear; Helical teeth circle in 13c, rocking arm; 14, traction one axle; 15, traction two axles; 16, traction three axles; 17, traction four axles; 18, traction planetary reduction gear wheels; 18a, traction sun helical gear; 18b, traction epicyclic singleplent helical gear; Helical teeth circle in 18c, traction; 19, traction electric machine.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment is by part in the engaging tooth wheels in rocking arm and tractive unit or be all arranged to bevel gear set, the engagement of use helical gears, can meet transmission intensity, stationarity requirement in rocking arm and tractive unit, select part to engage paired spur gear and be replaced by the helical gears of engagement, also all spur gears in rocking arm and tractive unit can be replaced by helical gears; By adopting the helical teeth kind of drive, under comparable size condition, helical teeth improves 15%-20% than straight-tooth intensity, and helical teeth is more steady than straight-tooth engagement, and mesh impact is little.Especially for low seam mining machinery, it is less that helical teeth transmission can be done the appearance and size of coal-winning machine, is more conducive to supporting and exploitation coal seam.
As depicted in figs. 1 and 2, the coal-winning machine of the utility model embodiment comprises left tractive unit 2 and the right tractive unit 3 on mount pad fuselage, and left tractive unit 2 left sides are also connected with left rocking arm 1, and right tractive unit 3 right sides are also connected with right Rocker arm 4.Wherein, left tractive unit 2 is similar to right tractive unit 3 structure substantial symmetry, and left rocking arm 1 is similar with right Rocker arm 4 structure substantial symmetry, describes the utility model embodiment in detail below with the structure of left rocking arm 1 and left tractive unit 2.
As shown in Figure 3, analyse and observe enlarged diagram for the structure of the left rocking arm 1 of coal-winning machine of the present invention, in figure, left rocking arm 1 comprises cutting motor 5, cutting motor 5 outputs rocking arm one axle 6 that is coupling; Rocking arm one axle 6 drives connecting rocker arm two axles 7 by the first bevel gear set; Rocking arm two axles 7 drive connecting rocker arm three axles 8 by the second bevel gear set; Rocking arm three axles 8 drive connecting rocker arm four axles 9 by the 3rd bevel gear set; Rocking arm four axles 9 drive connecting rocker arm five axles 10 by the 4th bevel gear set; Rocking arm five axles 10 drive connecting rocker arm six axles 11 by the 5th bevel gear set; Rocking arm six axles 11 drive connecting rocker arm seven axles 12 by the 6th bevel gear set; Wherein, rocking arm seven axles 12 input of rocking arm planetary reduction gear wheels 13 that is coupling; Rocking arm planetary reduction gear wheels 13 are driven and are connected cylinder by square toes.
As shown in Figure 3, in rocking arm planetary reduction gear wheels 13, be provided with helical teeth circle 13c in rocking arm sun helical gear 13a, rocking arm epicyclic singleplent helical gear 13b and rocking arm.Wherein, rocking arm sun helical gear 13a engagement rocking arm epicyclic singleplent helical gear 13b, helical teeth circle 13c in rocking arm epicyclic singleplent helical gear 13b engagement rocking arm; In rocking arm planetary reduction gear wheels inner rocker arm sun helical gear 13a, rocking arm epicyclic singleplent helical gear 13b and rocking arm, the structure of helical teeth circle 13c can, with reference to the interior structural configuration of existing rocking arm planetary reduction gear wheels, only need to change original straight-tooth into helical teeth.
Preferably, the first bevel gear set in left rocking arm 1, the second bevel gear set, the 3rd bevel gear set, the 4th bevel gear set, the 5th bevel gear set, the 6th bevel gear set and the 7th bevel gear set are intermeshing helical gears.Certainly as other selections, the first bevel gear set, the second bevel gear set, the 3rd bevel gear set, the 4th bevel gear set, the 5th bevel gear set, the 6th bevel gear set and the 7th bevel gear set also can partly be replaced by straight-tooth wheels, as long as the wheels in engagement are replaced by straight-tooth wheels jointly, as rocking arm three axle 8 upsides (being as the criterion with orientation as shown in scheming) are provided with helical gears, downside is installed a spur gear, corresponding rocking arm four axle 9 downsides are also provided with another spur gear engaging with the spur gear of rocking arm three axle 8 downsides, and at the upside of rocking arm four axles 9, helical gears are installed.
Preferably, the rocking arm sun gear in rocking arm planetary reduction gear wheels 13, rocking arm planetary gear and rocking arm ring gear are all arranged to helical teeth structure, as helical teeth circle 13c in rocking arm sun helical gear 13a, rocking arm epicyclic singleplent helical gear 13b and rocking arm.As other selections, if while being provided with many group rocking arm sun gears, rocking arm planetary gear and rocking arm ring gear in rocking arm planetary reduction gear wheels 13, optionally rocking arm sun gear, rocking arm planetary gear and the rocking arm ring gear of a certain group are set to straight-tooth circle in rocking arm sun spur gear, rocking arm planet spur gear and rocking arm; Other continue to be left helical teeth structure.Concrete condition can, according to concrete operating condition design, not repeat them here.
As shown in Figure 4, for the structure of the left tractive unit 2 of coal-winning machine of the present invention is analysed and observe enlarged diagram, in figure, left tractive unit 2 comprises traction electric machine 19, traction electric machine 19 outputs connect traction one axle 14, drawing an axle 14 is driven and is connected traction two axles 15 by the 8th bevel gear set, drawing two axles 15 is driven and is connected traction three axles 16 by the 9th bevel gear set, drawing three axles 16 is driven and is connected traction four axles 17 by the tenth bevel gear set, draw the be coupling input of the described traction planetary reduction gear wheels 18 of traction of four axles 17, traction planetary reduction gear wheels 18 drive and connect driving wheels.
As shown in Figure 4, in traction planetary reduction gear wheels 18, be provided with helical teeth circle 18c in traction sun helical gear 18a, traction epicyclic singleplent helical gear 18b and traction.Wherein, traction sun helical gear 18a engagement traction epicyclic singleplent helical gear 18b, traction epicyclic singleplent helical gear 18b engagement traction planet carrier helical gear 18c; The structure of traction planetary reduction gear wheels expert star-wheel, sun gear and planet carrier can be with reference to the structural configuration in the traction planetary reduction gear wheels in existing shearer hauled-part, and only planetary gear, sun gear and planet carrier need to be replaced by can intermeshing helical gear.
Preferably, the 8th bevel gear set in left tractive unit 2, the 9th bevel gear set and the tenth bevel gear set are intermeshing helical gears.Certainly as other selections, the 8th bevel gear set, the 9th bevel gear set and the tenth bevel gear set also can partly be replaced by straight-tooth wheels, as long as the wheels in engagement are replaced by straight-tooth wheels jointly, as draw two axle 15 upsides (being as the criterion with orientation as shown in scheming) another helical gears corresponding with helical gears on traction one axle 14 are installed, draw two axle 15 downsides a spur gear is installed, corresponding traction three axle 16 upsides are also provided with another spur gear engaging with the spur gear that draws two axle 15 downsides, and at traction three axle 16 downsides, helical gears are installed.
Preferably, the traction sun in traction planetary reduction gear wheels 19, traction planetary gear and traction ring gear are all arranged to helical teeth structure, as helical teeth circle 18c in traction sun helical gear 18a, traction epicyclic singleplent helical gear 18b and traction.As other selections, if will lead when being provided with many group traction sun, traction planetary gear and traction in planetary reduction gear wheels 18 and will leading ring gear, can be optionally by the traction sun of a certain group, will draw planetary gear and lead ring gear and be set to draw sun spur gear, draw planet spur gear and draw interior straight-tooth circle; Other continue to be left helical teeth structure.Concrete condition can, according to concrete operating condition design, not repeat them here.
The structural principle of the utility model embodiment is, as Figure 1-Figure 4, in the present invention, in coal-winning machine, adopt the helical teeth kind of drive, can be mainly used in the gear drive of rocking arm, also can be applied in as required in the rocking arm of coal-winning machine and in tractive unit simultaneously.Due to helical teeth cylinder wheel gear teeth inclination transmission, Total contact ratio increases, and contact line length increases, and therefore flank of tooth contact fatigue strength and tooth root bending fatigue strength is all increased.Under comparable size condition, helical teeth gearratio straight-tooth transmission intensity improves 15%-20%, and helical teeth transmission engagement effect is more steady than straight-tooth transmission engagement effect, and mesh impact is little.Especially for low seam mining machinery, it is less that helical teeth transmission can be done the appearance and size of coal-winning machine, is more conducive to supporting and exploitation coal seam.
Be coal-winning machine complete machine figure as depicted in figs. 1 and 2, as shown in Figure 3, the utility model embodiment preferably by helical teeth transmission application at left rocking arm 1, left traction 2, right traction 3, right Rocker arm 4.Rocker structure is as Fig. 3, and taking left rocking arm 1 as example, the power of cutting motor 5 is delivered in rocking arm planetary reduction gear wheels 13 by rocking arm one axle 6, rocking arm two axles 7, rocking arm three axles 8, rocking arm four axles 9, rocking arm five axles 10, rocking arm six axles 11 and rocking arm seven axles 12.Rocking arm planetary reduction gear wheels 13 are connected with cylinder by square toes, carry out coal breakage and coaling.It drives syndeton is all helical teeth engaged transmission, and in helical teeth engaged transmission, some helical teeth engaged transmission can produce axial force, and for adapting to this axial force, the bearing that can bear axial force that install corresponding both sides, as self-aligning ball bearing, taper roll bearing etc.
As shown in Figure 4, the power of traction electric machine 19 is by traction one axle 14, traction two axles 15, traction three axles 16, traction four axles 17 and traction planetary reduction gear wheels 18 for left tractive unit structure.The power of traction planetary reduction gear wheels 18 is delivered to the driving wheel of running part again, and driving wheel drives road wheel, on scrapper conveyor, walks.It drives syndeton is all helical teeth engaged transmission, and in helical teeth engaged transmission, some helical teeth engaged transmission can produce axial force, and for adapting to this axial force, the bearing that can bear axial force that install corresponding both sides, as self-aligning ball bearing, taper roll bearing etc.
Under comparable size condition, helical teeth gearratio straight-tooth transmission intensity improves, and extends the transmission system life-span; Rocking arm adopts helical teeth planet, planet head external diameter can be reduced, and improves the height of drum blade, improves effect of loading coal; Helical teeth engagement is more steady than straight-tooth engagement, and mesh impact is little; Utilize helical teeth transmission, coal-winning machine appearance and size can be reduced, be conducive to three machines supporting, more adapt to thin seam mining.
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 (9)
1. a coal-winning machine, comprises tractive unit and is connected to the rocking arm on described tractive unit; It is characterized in that,
Described rocking arm comprises cutting motor (5), and described cutting motor (5) drives connecting rocker arm planetary reduction gear wheels (13) by the parallel deceleration wheels of rocking arm, and described rocking arm planetary reduction gear wheels (13) are driven and connected cylinder by square toes; Wherein,
In the parallel deceleration wheels of described rocking arm, at least one pair of drives wheels to be set to bevel gear set.
2. coal-winning machine according to claim 1, is characterized in that, in described rocking arm planetary reduction gear wheels (13), at least one pair of drives wheels to be set to bevel gear set.
3. according to the coal-winning machine described in claim 1-2 any one, it is characterized in that, described tractive unit comprises traction electric machine (19), described traction electric machine (19) is driven and is connected traction planetary reduction gear wheels (18) by the parallel deceleration wheels of traction, and described traction planetary reduction gear wheels (18) drive and connect driving wheel;
In the parallel deceleration wheels of described traction, at least one pair of drives wheels to be set to bevel gear set.
4. coal-winning machine according to claim 3, is characterized in that, in described traction planetary reduction gear wheels (18), at least one pair of drives wheels to be set to bevel gear set.
5. according to the coal-winning machine described in claim 1-2 any one, it is characterized in that, the parallel deceleration wheels of described rocking arm comprise:
Rocking arm one axle (6) being coupling with described cutting motor (5) output;
Drive rocking arm two axles (7) that are connected by the first bevel gear set with described rocking arm one axle (6);
Drive rocking arm three axles (8) that are connected by the second bevel gear set with described rocking arm two axles (7);
Drive rocking arm four axles (9) that are connected by the 3rd bevel gear set with described rocking arm three axles (8);
Drive rocking arm five axles (10) that are connected by the 4th bevel gear set with described rocking arm four axles (9);
Drive rocking arm six axles (11) that are connected by the 5th bevel gear set with described rocking arm five axles (10);
Drive rocking arm seven axles (12) that are connected by the 6th bevel gear set with described rocking arm six axles (11); Wherein,
The be coupling input of described rocking arm planetary reduction gear wheels (13) of described rocking arm seven axles (12).
6. coal-winning machine according to claim 5, is characterized in that, is provided with helical teeth circle (13c) in rocking arm sun helical gear (13a), rocking arm epicyclic singleplent helical gear (13b) and rocking arm in described rocking arm planetary reduction gear wheels (13).
7. coal-winning machine according to claim 4, is characterized in that, the parallel deceleration wheels of described traction comprise traction one axle (14) being connected with described traction electric machine (19) output;
Drive traction two axles (15) that are connected by the 8th bevel gear set with described traction one axle (14);
Drive traction three axles (16) that are connected by the 9th bevel gear set with described traction two axles (15);
Drive traction four axles (17) that are connected by the tenth bevel gear set with described traction three axles (16); Wherein,
The be coupling input of described traction planetary reduction gear wheels (18) of described traction four axles (17).
8. coal-winning machine according to claim 7, is characterized in that, is provided with helical teeth circle (18c) in traction sun helical gear (18a), traction epicyclic singleplent helical gear (18b) and traction in described traction planetary reduction gear wheels (18).
9. coal-winning machine according to claim 4, is characterized in that, described bevel gear set is the helical gears group of engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194897.1U CN203822303U (en) | 2014-04-21 | 2014-04-21 | Coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194897.1U CN203822303U (en) | 2014-04-21 | 2014-04-21 | Coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822303U true CN203822303U (en) | 2014-09-10 |
Family
ID=51477816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194897.1U Expired - Fee Related CN203822303U (en) | 2014-04-21 | 2014-04-21 | Coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564054A (en) * | 2015-01-15 | 2015-04-29 | 商巧玲 | Coal mining device |
| CN104806240A (en) * | 2014-11-10 | 2015-07-29 | 三一重型装备有限公司 | Rocker arm structure and coal mining machine |
-
2014
- 2014-04-21 CN CN201420194897.1U patent/CN203822303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806240A (en) * | 2014-11-10 | 2015-07-29 | 三一重型装备有限公司 | Rocker arm structure and coal mining machine |
| CN104564054A (en) * | 2015-01-15 | 2015-04-29 | 商巧玲 | Coal mining device |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140910 Termination date: 20170421 |