CN201348022Y - Outer gear type speed reduction slewing gear - Google Patents
Outer gear type speed reduction slewing gear Download PDFInfo
- Publication number
- CN201348022Y CN201348022Y CNU2008201445394U CN200820144539U CN201348022Y CN 201348022 Y CN201348022 Y CN 201348022Y CN U2008201445394 U CNU2008201445394 U CN U2008201445394U CN 200820144539 U CN200820144539 U CN 200820144539U CN 201348022 Y CN201348022 Y CN 201348022Y
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- Prior art keywords
- outer gear
- motor
- slewing
- bearing
- gear
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Abstract
The utility model discloses an outer gear type speed reduction slewing gear which comprises a motor, a speed reducer and a pinion; the pinion is meshed with a rotary bearing; and the slewing bearing is connected with a stand. The slewing bearing comprises an inner ring and an outer gear ring; the inner ring and the outer gear ring rotate relatively through a rolling element; the outer gear ring is provided with an outer gear; the pinion is meshed with the outer gear on the outer gear ring; the diameter of the pitch circle of the outer gear ring is larger than that of the pitch circle of the pinion; the stand is provided with a large plane which is vertical to the axis of the slewing bearing; and the end surface of the inner ring of the slewing bearing is fixed on the large plane. In the speed reduction slewing gear, the speed reducer is driven by a hydraulic motor or an electric motor or directly driven by the motor, and the speed reducer or the output pinion of the motor drives a gear ring on the slewing bearing to rotate, so as to obtain the final output with quite high reduction ratio, and realize the continuous slewing movement in the clockwise or the counter clockwise direction. The speed reducer or the motor, the slewing bearing and the stand are combined into an entirety; and therefore, the outer gear type speed reduction slewing gear has simple and compact structure, can not only meet the requirement for quite low output speed, but also meet the requirement for overturning movement bearing.
Description
Technical field
The utility model relates to a kind of external tooth type deceleration swivel gear, especially needs to bear big tilting moment and rotating occasion of while.
Background technique
Present traverse platform, mainly the output pinion by speed reducer drives a bull gear and realizes that this gear ring is connected with axle by assortment of keys, and spool by bearing fixing on bearing support, bear tilting moment by bearing, and realize 360 ° rotation motion: its fault mainly contain following some:
1, the bearing capacity under the same structural volume is less.Bearing capacity mainly realizes by bearing, and the volume of bearing has determined the size of its bearing capacity, makes this structure under bad working environments, bears the limited in one's ability of complicated multiaxis loading;
2, structure bulky complex.Revolution realizes by bearing, therefore, needs bearing support, thicker axle, and driving parts such as wheel hub cause complicated structure and huge volume inevitably, have restricted its application in narrow space especially;
3, difficulty is adjusted in assembling.Since the bulkiness and the complicated and diversified number of spare parts of conventional construction, the complexity that causes erecting yard to adjust.Its basic adjustment link has: (1). the adjustment of bearing play; (2). the adjustment of big or small gear backlash; (3). the adjustment of big small gear assembly center distance.The difficulty of assembling also embodies in the following areas: (1). because causing when assembling, the particularity that bearing cooperates with axle need use static pressure or hot and cold dress technology; (2). the bull gear wheel hub mostly is the transition fit tolerance with the platform of joining of axle, thereby has also increased the complexity of technology when assembling, and needs by special process such as static pressure or hot and cold dresses;
4, safeguard, maintain difficulty.Because gear ring mostly is the open type exposed parts, causes the tooth portion easy-to-rust of part, and easily sticking foreign material, to the wearing and tearing aggravation of the flank of tooth, reduced in the life-span of whole parts.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned deficiency, provide a kind of can rotary decelerating, can bear big tilting moment, simple in structure, easy for installation, incorporate deceleration swivel gear that the life-span is long again.
The technical solution of the utility model is: external tooth type deceleration swivel gear, comprise motor, speed reducer, small gear, pivoting support, pivoting support comprises inner ring, external toothing, relatively rotate by rolling element between inner ring, the external toothing, external toothing is provided with external tooth, described small gear is meshed with external tooth on the external toothing, and the standard pitch diameter of external toothing is greater than the standard pitch diameter of small gear.
Pivoting support is connected with support.
Have on the support one with the perpendicular big plane of axis of described pivoting support, the inner ring end face of pivoting support is fixedly mounted on the big plane.
Motor is an electric motor; Motor also can be oil hydraulic motor.
Beneficial effect: this deceleration swivel gear is by oil hydraulic motor or electrical motor driven speed reducer, and by the gear ring rotation on the output pinion drive pivoting support of speed reducer or motor, thereby can obtain final output, and realize clockwise or anticlockwise continuous rotation motion than the big retarding ratio.Speed reducer or motor, pivoting support, support make up in aggregates, simple in structure, compact, can satisfy the slower needs of output speed, can reach the requirement of bearing tilting moment again.This model utility has the following advantages:
1, function admirable.Because adopting pivoting support is final output element, has solved and can rotate, can bear axially again, radially, the problem of multi-direction while used load such as tilting moment.And bearing capacity is big, can use under complicated bad working environments;
2, simple in structure, compact.Because it is, in aggregates by an enclosed support combination with parts such as speed reducer, pivoting supports.Number of spare parts is less, makes boundary dimension and volume compact, can satisfy the use in narrow installing space;
3, easy to maintenance, long service life.The driving mechanism of this model utility all is installed in the support of sealing, relatively rotates part and rubber seal all is installed is hedged off from the outer world.Stopped the intrusion of external impurities, made maintenance period increase, in addition non-maintaining, improved the working life of driving component simultaneously, thereby the life-span of complete machine is prolonged greatly;
4, cost is low, and the number of spare parts that is adopted is few, and is enclosed construction, makes manufacture cost and working service cost reduce greatly;
5, Installation and Debugging are simple, and the utility model is combined as an integral body with several vital parts.Before dispatching from the factory, can adjust the assembly relation of driving component, and assembling becomes an one-piece element, therefore, no longer need to adjust during on-the-spot the installation, significantly reduced the on-site installation work amount, improved on-the-spot installation efficiency and installation quality.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is an another kind of structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of external tooth type deceleration swivel gear, comprise motor 1, speed reducer 2, small gear 3, pivoting support 5, pivoting support 5 comprises inner ring 5.1, external toothing 5.3, relatively rotate by rolling element 5.2 between inner ring 5.1, the external toothing 5.3, external toothing 5.3 is provided with external tooth 5.4, small gear 3 is meshed with external tooth 5.4 on the external toothing 5.3, and the standard pitch diameter of external toothing 5.3 is greater than the standard pitch diameter of small gear 3.
Described pivoting support 5 is connected with support 4.
Have on the support 4 one with the perpendicular big plane 6 of axis of described pivoting support 5, inner ring 5.1 end faces of pivoting support 5 are fixedly mounted on the big plane 6.
Motor 1 is an electric motor.Motor 1 also can be oil hydraulic motor.
Claims (5)
1, a kind of external tooth type deceleration swivel gear, comprise motor (1), speed reducer (2), small gear (3), pivoting support (5), it is characterized in that: described pivoting support (5) comprises inner ring (5.1), external toothing (5.3), relatively rotate by rolling element (5.2) between inner ring (5.1), the external toothing (5.3), external toothing (5.3) is provided with external tooth (5.4), described small gear (3) is meshed with external tooth (5.4) on the external toothing (5.3), and the standard pitch diameter of external toothing (5.3) is greater than the standard pitch diameter of small gear (3).
2, external tooth type deceleration swivel gear according to claim 1 is characterized in that: described pivoting support (5) is connected with support (4).
3, external tooth type deceleration swivel gear according to claim 2, it is characterized in that: have on the described support (4) one with the perpendicular big plane (6) of axis of described pivoting support (5), inner ring (5.1) end face of pivoting support (5) is fixedly mounted on the big plane (6).
4, external tooth type deceleration swivel gear according to claim 1 is characterized in that: described motor (1) is an electric motor.
5, external tooth type deceleration swivel gear according to claim 1 is characterized in that: described motor (1) is an oil hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201445394U CN201348022Y (en) | 2008-12-17 | 2008-12-17 | Outer gear type speed reduction slewing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201445394U CN201348022Y (en) | 2008-12-17 | 2008-12-17 | Outer gear type speed reduction slewing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348022Y true CN201348022Y (en) | 2009-11-18 |
Family
ID=41367492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201445394U Expired - Fee Related CN201348022Y (en) | 2008-12-17 | 2008-12-17 | Outer gear type speed reduction slewing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348022Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
| CN105221112A (en) * | 2015-11-11 | 2016-01-06 | 太重（天津）滨海重型机械有限公司 | Rotating mechanism |
| CN104503478B (en) * | 2014-12-02 | 2017-05-10 | 中国船舶重工集团公司第七一六研究所 | Separate adjustable-backlash servo turntable transmission device |
| CN109139715A (en) * | 2018-08-28 | 2019-01-04 | 广州大度机械科技有限公司 | Rotary labeling main bearing room |
-
2008
- 2008-12-17 CN CNU2008201445394U patent/CN201348022Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
| CN104503478B (en) * | 2014-12-02 | 2017-05-10 | 中国船舶重工集团公司第七一六研究所 | Separate adjustable-backlash servo turntable transmission device |
| CN105221112A (en) * | 2015-11-11 | 2016-01-06 | 太重（天津）滨海重型机械有限公司 | Rotating mechanism |
| CN109139715A (en) * | 2018-08-28 | 2019-01-04 | 广州大度机械科技有限公司 | Rotary labeling main bearing room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20111217 |