CN203082124U - Large-power NW type grinding machine gear case - Google Patents
Large-power NW type grinding machine gear case Download PDFInfo
- Publication number
- CN203082124U CN203082124U CN 201220548483 CN201220548483U CN203082124U CN 203082124 U CN203082124 U CN 203082124U CN 201220548483 CN201220548483 CN 201220548483 CN 201220548483 U CN201220548483 U CN 201220548483U CN 203082124 U CN203082124 U CN 203082124U
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- gear
- bevel gear
- planet
- wheel
- large bevel
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Abstract
The utility model provides a large-power NW type grinding machine gear case including a casing, an input shaft, a small bevel gear, a large bevel gear, a large bevel gear shaft, and a grinding disc. The gear case further is characterized by including a primary NW type planet deceleration mechanism, the input shaft is connected with a motor via a diaphragm coupling, the small bevel gear fixed at the front end of the input shaft is engaged with the large bevel gear arranged on the large bevel gear shaft, the large bevel gear shaft transmits torque to a sun gear of the NW type planet deceleration mechanism, and the planet carrier output end of the NW type planet deceleration mechanism is connected with the grinding disc. Because the large bevel gear and the small bevel gear are fixedly connected and share one shafting, the planetary mechanisms with same speed ratio are obviously reduced and the speed ratio of the planetary mechanisms is greatly improved, a large power vertical grinding reducer is reduced from an original double split flow one or a secondary NGW planet one to a primary spiral bevel gear together with the primary NW planet one. The gear case provided has the advantages of small size, high power density, low power loss, and strong bearing capability, and is an update product of a large power grinding machine gear case in the prior art.
Description
Technical field
The utility model relates to a kind of reduction gear box, particularly a kind of high-power reduction gear box of large-scale vertical grinding machine of the grindings such as new type nonaqueous cement raw material, clinker and cement-slag that are applied to energy-conservation environmental protection.
Background technique
Existing grinding machine generally adopts input spiral shell umbrella to adopt double split flow or NGW type planetary mechanism with high-power gear reducer.But the double split flow of input spiral shell umbrella need increase the one-level parallel split-flow again at input shaft, cause number of structures to increase, cause gear-box efficient to reduce single-stage driving efficient about 98%, adopt shunting back transmission efficiency about 96%, long-time running can shine very big electric power resource waste; Adopt the double split flow meeting to cause the biasing of spiral shell umbrella mounting distance, cause spiral shell umbrella processing difficulties, cost is bigger; And double split flow is more owing to driving mechanism, causes the gear-box heating bigger, and noise is bigger, less stable.And NGW type planetary mechanism can not satisfy the requirement of velocity ratio, general single-stage NGW planetary mechanism velocity ratio is at 1.13-13.7(recommendation 2.7-9), on the bigger speed reducer of speed ratio, need to adopt two-stage NGW planetary mechanism, cause speed reducer bulky, it is bigger to generate heat, noise is bigger, less stable, and the fault point increases.
Summary of the invention
The utility model purpose just is to overcome the deficiency of above-mentioned existing speed reducer, designs the high-power NW type grinding machine gear-box that a kind of volume is little, specific power is high, power loss is low, bearing capacity is strong.
High-power NW type grinding machine gear-box of the present utility model, comprise casing, input shaft, bevel pinion, large bevel gear, large bevel gear axle, mill, it is characterized in that also comprising one-level NW type planetary gear speed reducing mechanism, described input shaft is connected with motor by diaphragm coupling, be packed in the bevel pinion and the large bevel gear engagement that is installed on the large bevel gear axle of input shaft front end, the large bevel gear axle transfers torque to the sun gear of NW type planetary gear speed reducing mechanism, and the planet carrier output terminal of NW type planetary gear speed reducing mechanism is connected with mill.
Above-mentioned NW type planetary mechanism comprises sun gear, major planets wheel, asteroid wheel, planet axis, planet carrier, ring gear, float with the large bevel gear axle with the duplex crown gear coupling by the straight-tooth coupling and be connected in the bottom of described sun gear, sun gear and the engagement of major planets wheel, major planets wheel bottom is provided with asteroid wheel, asteroid wheel and the ring gear engagement that is packed in the casing, major planets wheel and asteroid wheel are contained on the planet carrier through planet axis, the planet carrier output terminal is connected with mill, and mill is installed on the casing through spring bearing.
Above-mentioned planet axis and major planets wheel and asteroid wheel are preferably 3 or 4, and supporting with it planet carrier is triangle or quadrilateral.
High-power NW type grinding machine gear-box of the present utility model, by major planets wheel and asteroid wheel for fixedlying connected and a shared axle is, the planetary mechanism that makes identical speed ratio obviously dwindles and increases substantially the speed ratio of planetary mechanism, the single-stage speed ratio recommendation that the maximum single-stage speed ratio of the NW planetary mechanism of this gear-box can reach the common planetary mechanism of 50(is 2.7-9 only), also can reduce simultaneously the speed ratio of input spiral shell umbrella, with high-power roller mill speed reducer from original double split flow or 2 grades of NGW planets, be reduced into one-level spiral shell umbrella and add one-level NW planet, it is little to have volume, the specific power height, power loss is low, advantages such as bearing capacity is strong are the upgrading regeneration products of existing high-power grinding machine gear-box.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
1 of mark is mill among the figure, the 2nd, and planet carrier, the 3rd, major planets wheel, the 4th, planet axis, the 5th, asteroid wheel, the 6th, ring gear, the 7th, casing, the 8th, input shaft, the 9th, bevel pinion, the 10th, large bevel gear, the 11st, large bevel gear axle, the 12nd, duplex crown gear coupling, the 13rd, straight-tooth coupling, the 14th, sun gear.
Embodiment
Accompanying drawing is nonrestrictive to disclose a specific embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
Referring to accompanying drawing, high-power NW type grinding machine gear-box of the present utility model, comprise casing 7, input shaft 8, bevel pinion 9, large bevel gear 10, large bevel gear axle 11, mill 1, it is characterized in that also comprising one-level NW type planetary gear speed reducing mechanism, described input shaft 8 is connected with motor by diaphragm coupling, be packed in the bevel pinion 9 and large bevel gear 10 engagements that are installed on the large bevel gear axle 11 of input shaft 8 front ends, the large bevel gear axle transfers torque to the sun gear of NW type planetary gear speed reducing mechanism, and the planet carrier output terminal of NW type planetary gear speed reducing mechanism is connected with mill.
Above-mentioned NW type planetary mechanism comprises sun gear 14, major planets wheel 3, asteroid wheel 5, planet axis 4, planet carrier 2, ring gear 6, float with large bevel gear axle 11 with duplex crown gear coupling 12 by straight-tooth coupling 13 and be connected in the bottom of described sun gear 14, sun gear 14 and 3 engagements of major planets wheel, major planets is taken turns 3 bottoms and is provided with asteroid wheel 5, asteroid wheel 5 and ring gear 6 engagements that are packed in the casing 7, major planets wheel 3 and asteroid wheel 5 are contained on the planet carrier 2 through planet axis 4, planet carrier 2 output terminals are connected with mill 1, and mill 1 is installed on the casing 7 through spring bearing.
Above-mentioned planet axis 4 and major planets wheel 3 and asteroid wheel 5 are preferably 3 or 4, and supporting with it planet carrier 2 is triangle or quadrilateral.
Working principle of the present utility model: prime mover (being generally motor) is connected with the speed reducer input shaft by diaphragm coupling, effectively avoids the gearbox input shaft axial force that motor is damaged, and also can compensate error of centralization when installing; Gearbox input shaft substitutes the shunting of input spiral shell umbrella by using the big specification spiral shell of single-stage umbrella, for guaranteeing the unsteady degrees of freedom of sun gear in the planetary mechanism, spiral shell umbrella output back connects the sun gear of NW planetary mechanism by the duplex crown gear coupling, crowned teeth can compensate certain angle and error of centralization, has reduced the requirement to casing processing simultaneously.
The moment of torsion of spiral shell umbrella adjutant input amplifies the mechanism that is delivered to the NW planet, and in order to give full play to the advantage of planetary pinion transmission, employing can compensate foozle, makes planet wheels at different levels evenly share the mechanism of load, and planet wheel is set at relocation mechanism.Sun gear and the engagement of my first order planet wheel, transfer torque to planet axis system, first order planet wheel gear and second level planet wheel gear are for fixedlying connected, a shared axle is, first order planetary gear tooth number is greater than second level planet wheel gear, second level planet wheel gear and ring gear engagement, ring gear adopts fixedly connected, ring gear is fastened on the casing by pin, when sun gear rotates, ring gear is fixedly the time, and planet wheel is except that around the sun gear rotation, and its center line is also around the sun gear revolution, revolution by planet wheel transfers torque to the planet pivoted frame, pivoted frame drives the output mill, has realized that the power transmission of gear-box and rotating speed change, and transmitting torque is also because the conversion of mechanism has obtained increase.
The epicyclic transmission mechanism speed ratio is by the ring gear number of teeth and the decision of the planet wheel number of teeth, adopt the NW structure to pass through first, the secondary planet wheel gear obviously dwindles the planetary mechanism of identical speed ratio, can increase substantially simultaneously the speed ratio of planetary mechanism, make the maximum single-stage speed ratio of NW planetary mechanism can arrive 50(recommendation 2.7-9), also can reduce simultaneously the speed ratio of input spiral shell umbrella, with high-power roller mill speed reducer from original double split flow or 2 grades of NGW planets, be reduced into one-level spiral shell umbrella and add one-level NW planet, demonstrated fully the compact of speed reducer, precise treatment has improved the bearing capacity of gear-box.
Claims (3)
1. high-power NW type grinding machine gear-box, comprise casing, input shaft, bevel pinion, large bevel gear, large bevel gear axle, mill, it is characterized in that also comprising one-level NW type planetary gear speed reducing mechanism, described input shaft is connected with motor by diaphragm coupling, be packed in the bevel pinion and the large bevel gear engagement that is installed on the large bevel gear axle of input shaft front end, the large bevel gear axle transfers torque to the sun gear of NW type planetary gear speed reducing mechanism, and the planet carrier output terminal of NW type planetary gear speed reducing mechanism is connected with mill.
2. high-power NW type grinding machine gear-box as claimed in claim 1, it is characterized in that described NW type planetary gear speed reducing mechanism comprises sun gear, the major planets wheel, asteroid wheel, planet axis, planet carrier, ring gear, float with the large bevel gear axle with the duplex crown gear coupling by the straight-tooth coupling and be connected in the bottom of described sun gear, sun gear and the engagement of major planets wheel, major planets wheel bottom is provided with asteroid wheel, asteroid wheel and the ring gear engagement that is packed in the casing, major planets wheel and asteroid wheel are contained on the planet carrier through planet axis, the planet carrier output terminal is connected with mill, and mill is installed on the casing through spring bearing.
3. high-power NW type grinding machine gear-box as claimed in claim 2 is characterized in that described planet axis and major planets wheel and asteroid wheel are preferably 3 or 4, and supporting with it planet carrier is triangle or quadrilateral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548483 CN203082124U (en) | 2012-10-25 | 2012-10-25 | Large-power NW type grinding machine gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548483 CN203082124U (en) | 2012-10-25 | 2012-10-25 | Large-power NW type grinding machine gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082124U true CN203082124U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220548483 Expired - Fee Related CN203082124U (en) | 2012-10-25 | 2012-10-25 | Large-power NW type grinding machine gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082124U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453076A (en) * | 2013-08-20 | 2013-12-18 | 洛阳理工学院 | Single-input coaxial double-output speed reducer |
| CN104265841A (en) * | 2014-08-25 | 2015-01-07 | 南京金鑫传动设备有限公司 | Main gearbox for high-power superfine slag mill |
| CN104437760A (en) * | 2014-11-19 | 2015-03-25 | 江苏荣基重工科技有限公司 | Marine vertical mill speed reduction box system |
| CN104504196A (en) * | 2014-12-22 | 2015-04-08 | 湘潭电机股份有限公司 | Method for optimizing efficiency of NW type fixed-axle gear system |
| CN108050209A (en) * | 2017-11-28 | 2018-05-18 | 徐光中 | Multiple stage gear reduction motor containing dual planetary gear |
| CN112572781A (en) * | 2020-12-04 | 2021-03-30 | 中国航空工业集团公司成都飞机设计研究所 | Front wheel turning speed reduction output mechanism |
-
2012
- 2012-10-25 CN CN 201220548483 patent/CN203082124U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453076A (en) * | 2013-08-20 | 2013-12-18 | 洛阳理工学院 | Single-input coaxial double-output speed reducer |
| CN103453076B (en) * | 2013-08-20 | 2015-10-28 | 洛阳理工学院 | The coaxial Dual-output reducer of a kind of single input |
| CN104265841A (en) * | 2014-08-25 | 2015-01-07 | 南京金鑫传动设备有限公司 | Main gearbox for high-power superfine slag mill |
| CN104265841B (en) * | 2014-08-25 | 2016-10-05 | 南京金鑫传动设备有限公司 | High-power slag micropowder mill main-gear box |
| CN104437760A (en) * | 2014-11-19 | 2015-03-25 | 江苏荣基重工科技有限公司 | Marine vertical mill speed reduction box system |
| CN104504196A (en) * | 2014-12-22 | 2015-04-08 | 湘潭电机股份有限公司 | Method for optimizing efficiency of NW type fixed-axle gear system |
| CN104504196B (en) * | 2014-12-22 | 2017-10-10 | 湘潭电机股份有限公司 | A kind of method of optimization NW type fixed axis gear system efficiency |
| CN108050209A (en) * | 2017-11-28 | 2018-05-18 | 徐光中 | Multiple stage gear reduction motor containing dual planetary gear |
| CN112572781A (en) * | 2020-12-04 | 2021-03-30 | 中国航空工业集团公司成都飞机设计研究所 | Front wheel turning speed reduction output mechanism |
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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 |
Granted publication date: 20130724 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |