CN201348023Y

CN201348023Y - Inner gear type speed reduction slewing gear

Info

Publication number: CN201348023Y
Application number: CNU2008201445430U
Authority: CN
Inventors: 张文; 刘文贵
Original assignee: Borun New Energy Science & Technology Co Ltd
Current assignee: Borun New Energy Science & Technology Co Ltd
Priority date: 2008-12-17
Filing date: 2008-12-17
Publication date: 2009-11-18
Anticipated expiration: 2018-12-17

Abstract

The utility model discloses an inner gear type speed reduction slewing gear which comprises a motor, a speed reducer, a pinion and a slewing bearing; the slewing bearing comprises an inner ring and an outer ring; the inner ring and the outer ring relatively rotate through a rolling element; the inner ring surface on one side of the outer ring is provided with an inner gear; the pinion is meshed with the inner gear on the outer ring; and the diameter of a pitch circle of the inner gear on the outer ring is larger than that of the pitch circle of the pinion. The end surface of the inner ring of the slewing bearing is fixed on a connecting plate. The end surface of the outer ring of the slewing bearing which is close to the inner gear is arranged on a bottom plate. In the speed reduction slewing gear, a hydraulic motor or an electric motor drives the speed reducer or the motor directly drives the same, and the output pinion of the speed reducer or 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 rotation in the clockwise or counterclockwise direction. The speed reducer or the motor, the slewing bearing and a stand are combined into an entirety; and therefore, the inner gear type speed reduction slewing gear has the advantages of simple and compact structure, can not only meet the requirement for quite low output speed, but also meet the requirement for overturning moment bearing.

Description

Internal gear type deceleration swivel gear

Technical field

The utility model relates to a kind of internal gear 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: internal gear type deceleration swivel gear, comprise motor, speed reducer, small gear, pivoting support, pivoting support comprises inner ring, outer ring, relatively rotate by rolling element between inner ring, the outer ring, the inner ring surface of outer ring one side is provided with internal tooth, described small gear is meshed with internal tooth on the outer ring, and the standard pitch diameter of internal tooth is greater than the standard pitch diameter of small gear on the outer ring.

The end face of the inner ring of pivoting support is fixedly mounted on the connecting plate.

The end face of the close internal tooth of the outer ring of pivoting support is fixedly mounted on the base plate.

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 internal gear type deceleration swivel gear, comprise motor 1, speed reducer 2, small gear 3, pivoting support 5, pivoting support 5 comprises inner ring 5.3, outer ring 5.1, relatively rotate by rolling element 5.2 between inner ring 5.3, the outer ring 5.1, the inner ring surface of outer ring 5.1 1 sides is provided with internal tooth 5.4, small gear 3 is meshed with internal tooth 5.4 on the outer ring 5.1, and the standard pitch diameter of internal tooth is greater than the standard pitch diameter of small gear 3 on the outer ring 5.1.

The end face of the inner ring 5.3 of pivoting support 5 is fixedly mounted on the connecting plate 6.

The end face of the close internal tooth 5.4 of the outer ring 5.1 of pivoting support 5 is fixedly mounted on the base plate 3.

Motor 1 is an electric motor.Motor 1 also can be oil hydraulic motor.

Claims

1, a kind of internal gear 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 (5.3), outer ring (5.1), relatively rotate by rolling element (5.2) between inner ring (5.3), outer ring (5.1), the inner ring surface of outer ring (5.1) one sides is provided with internal tooth (5.4), described small gear (3) is meshed with internal tooth (5.4) on outer ring (5.1), and outer ring (5.1) go up the standard pitch diameter of the standard pitch diameter of internal tooth greater than small gear (3).

2, internal gear type deceleration swivel gear according to claim 1 is characterized in that: the end face of the inner ring (5.3) of described pivoting support (5) is fixedly mounted on the connecting plate (6).

3, external tooth type deceleration swivel gear according to claim 1 and 2 is characterized in that: the end face of the close internal tooth (5.4) of the outer ring (5.1) of described pivoting support (5) is fixedly mounted on the base plate (3).

4, according to claim 1 or 2 or 3 described external tooth type deceleration swivel gears, it is characterized in that: described motor (1) is an electric motor.

5, according to claim 1 or 2 or 3 described external tooth type deceleration swivel gears, it is characterized in that: described motor (1) is an oil hydraulic motor.