CN207906281U

CN207906281U - A kind of new harmonic bearing

Info

Publication number: CN207906281U
Application number: CN201820300944.4U
Authority: CN
Inventors: 杨建设
Original assignee: Xi'an Step Transmission Technology Co Ltd
Current assignee: Xi'an Step Transmission Technology Co Ltd
Priority date: 2018-03-05
Filing date: 2018-03-05
Publication date: 2018-09-25
Anticipated expiration: 2028-03-05

Abstract

The utility model is related to a kind of new harmonic bearings, inner ring and retainer occurs including flexible tooth outer shroud, rolling element, wave, the flexible tooth outer shroud is to rely on standard thin-wall bearing and standard harmonic speed reducer, it is designed as standard flex tooth outer shroud, the particular/special requirement of user can also be met and customized, and flexible tooth outer shroud be equipped with bearing surface tooth, for connect it is matched use determine steel wheel internal tooth；The rolling element is corresponding with standard thin-wall bearing, and it is ellipse that inner ring, which occurs, for the wave, is to rely on standard thin-wall bearing and standard harmonic speed reducer, raceway, long axis and short axle, and long axis and minor axis length are unequal；The utility model has the advantages that, the transmission efficiency of product can be promoted, reduce transmission chain raising transmission accuracy, small, light-weight, simple in structure, energy-conservation of consumption reduction etc., it realizes bearing surface tooth and transmits power, the deficiency that the speed reducer structure to change previous wave producer (contain tooth poor) class is complicated, of high cost, manufacture difficulty is big, inefficient etc..

Description

A kind of new harmonic bearing

Technical field

The utility model is related to variable-speed motor fields, and in particular to a kind of new harmonic bearing.

Background technology

Bearing is a kind of important spare part in contemporary mechanical equipment, is widely used general.Bearing is by inner ring, outer ring, rolling Kinetoplast and four part of retainer composition.Its major function is the mechanical rotary body of support, reduces the friction system in its motion process The case where counting, and ensure its rotating accuracy, transmitting power is more rare.And the utility model is that bearing is allowed no longer to be limited only to drop Low-friction coefficient ensures rotating accuracy, moreover it is possible to the precision parts of power are transmitted as mechanical part.

As Chinese intelligence makes 2025 gradually acceleration, the demand of accurate retarding machine also constantly heats up.Such as：Harmonic wave, rubs at cycloid It is to drive rotary body to misplace with another fixed body generation dislocation or deformation by wave producer to wipe class speed reducer, to realize the biography of power It passs.

Existing design bearing and manufacture are cumbersome, transmission chain is longer, transmission efficiency is not high, energy saving have space；Manufacture harmonic wave axis It holds and needs special technology, this necessarily makes it higher than conventional bearings price；Mechanical harmonic drive is built upon flexible deformation Transmission in theoretical foundation, equally further to be solved from material and process aspect and improve flexible tooth outer shroud fatigue life and The deficiency of performance.If theoretically the material of flexible tooth outer shroud and technique can guarantee and bear big deformation, large modulus and large size The design and manufacture of the speed reducer of class containing harmonic drive will no longer be difficult.

The birth of the utility model, on the one hand can be by similar harmonic drive and harmonic wave technology standardization, seriation, transparent Change；On the other hand manufacture difficulty and manufacturing cost containing harmonic oscillator (it is poor to contain tooth) such speed reducer can be reduced, from skill The fast development and realization of power-assisted intelligence manufacture in art.

Existing 102820104 A of Chinese patent document CN disclose a kind of realization harmonic speed reducer and are applied to Bidirectional driving Mechanical device, mainly solve the problems, such as be：Harmonic speed reducer is applied to do the mechanical system of Bidirectional driving in the presence of tired Difficulty, as the transmission system of humanoid robot is learnt by oneself in teach-by-doing teaching.When mechanical system does reverse transmission, the transmission of larger retarder It meets obstructions excessive when than artificial guided robot can be made to act and causes dragging difficult.It is solved the problems, such as with the utility model It is different.

Utility model content

The purpose of this utility model is to solve the above problems, and provides a kind of new harmonic bearing, can shorten the manufacturing cycle, Totle drilling cost that is energy saving and reducing device, improves the comprehensive mechanical performance of harmonic drive.

To achieve the above object, the utility model provides the following technical solutions：

Inner ring and retainer, the flexible tooth occur for a kind of new harmonic bearing, including flexible tooth outer shroud, rolling element, wave Outer shroud is to rely on standard thin-wall bearing and standard harmonic speed reducer, is designed as standard flex tooth outer shroud, can also meet user Particular/special requirement and customize, and flexible tooth outer shroud be equipped with bearing surface tooth, for connect it is matched use determine steel wheel internal tooth； The rolling element is corresponding with standard thin-wall bearing, and it is ellipse that inner ring, which occurs, for the wave, humorous with standard thin-wall bearing and standard Wave speed reducer is to rely on, raceway, long axis and short axle, and long axis and minor axis length are unequal.

Further, it is to rely on that inner ring, which occurs, for the wave with standard thin-wall bearing and standard harmonic speed reducer, according to reality Need the wave for being designed as unicast or more waves that inner ring occurs.

Further, the flexible tooth outer shroud is deformable thin-wall construction, thickness ＜ 0.5mm.

Further, the retainer is skeleton, is uniformly provided with the first groove being adapted with rolling element size thereon.

Preferably, the rolling element is the sphere being embedded on retainer.

Further, the inner side edge of the wave generation inner ring is equipped with the second groove, for connecting external input shaft.

The beneficial effects of the utility model are：

The utility model can be promoted product transmission efficiency, reduce transmission chain improve transmission accuracy, it is small, light-weight, Simple in structure, energy-conservation of consumption reduction etc. realizes bearing surface tooth and transmits power, to change previous wave producer (it is poor to contain tooth) class Speed reducer structure is complicated, the deficiency that of high cost, manufacture difficulty is big, inefficient etc..Not only use bearing surface tooth as power It transmits, moreover it is possible to simplify the cumbersome and difficulty of design, the manufacture of harmonic wave class speed reducer；Improve the comprehensive mechanical of harmonic drive Military project, space flight, intelligent manufacturing, medical treatment and machinery manufacturing industry can be preferably served with the economic benefit of enterprise, had wide General application prospect and huge economic value.

Description of the drawings

It is required in being described below to embodiment to make in order to illustrate more clearly of the utility model embodiment technical solution Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model in order to more clearly Illustrate the utility model embodiment or technical solution in the prior art, for those of ordinary skill in the art, is not paying Under the premise of going out creative work, other drawings may also be obtained based on these drawings.

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the front view of the utility model flexible tooth outer shroud；

Fig. 3 is the side view of the utility model flexible tooth outer shroud；

Fig. 4 is the portions flexible tooth outer shroud C schematic enlarged-scale view in Fig. 3；

Fig. 5 is the utility model rolling element structural schematic diagram；

Fig. 6 is that inner ring front view occurs for the utility model wave；

Fig. 7 is that inner ring side view occurs for the utility model wave；

Fig. 8 is the utility model retainer structural schematic diagram；

Fig. 9 is that the utility model embodiment coaxially exports double wave cam formula harmonic wave speed reducing machine schematic diagram.

Specific implementation mode

A kind of new harmonic bearing as shown in figures 1-8, including flexible tooth outer shroud 1, rolling element 2, wave occur inner ring 3 and protect Frame 4 is held, the flexible tooth outer shroud 1 is to rely on standard thin-wall bearing and standard harmonic speed reducer, is designed as outside standard flex tooth Ring, and flexible tooth outer shroud 1 be equipped with bearing surface tooth, for connect it is matched use determine steel wheel internal tooth 5；The rolling element 2 Corresponding with standard thin-wall bearing, it is ellipse that inner ring 3, which occurs, for the wave, is with standard thin-wall bearing and standard harmonic speed reducer It relies on, raceway 6, long axis B and short axle A, and long axis B and short axle A length are unequal.

Further, it is to rely on that inner ring 3, which occurs, for the wave with standard thin-wall bearing and standard harmonic speed reducer, according to reality Need the wave for being designed as unicast or more waves that inner ring occurs.

Further, the flexible tooth outer shroud 1 is deformable thin-wall construction, thickness ＜ 0.5mm.

Further, the retainer 4 is skeleton, is uniformly provided with the first groove being adapted with 2 size of rolling element thereon 41。

Preferably, the rolling element 2 is the sphere being embedded on retainer 4.

Further, the inner side edge of the wave generation inner ring 3 is equipped with the second groove 31, for connecting external input shaft.

The course of work of the utility model harmonic rolling beering is：

For simply coaxially exporting double wave cam formula harmonic wave speed reducing machine；Such as Fig. 9, usual rotary power axis occurs with wave Inner ring 3 connects, and flexible tooth outer shroud 1 is forced to generate flexible deformation, make the tooth of flexible tooth outer shroud 1 and speed reducer determine steel wheel internal tooth 5 into Enter meshing state, to realize that the face tooth with bearing transmits power.

The utility model can be promoted product transmission efficiency, reduce transmission chain improve transmission accuracy, it is small, light-weight, Simple in structure, energy-conservation of consumption reduction etc. realizes bearing surface tooth and transmits power, to change the i.e. class of difference containing tooth of previous wave producer The deficiency that speed reducer structure is complicated, of high cost, manufacture difficulty is big, inefficient etc..Not only use bearing surface tooth as the biography of power It passs, moreover it is possible to simplify the cumbersome and difficulty of design, the manufacture of harmonic wave class speed reducer；Improve the comprehensive mechanical performance of harmonic drive With the economic benefit of enterprise, military project, space flight, intelligent manufacturing, medical treatment and machinery manufacturing industry can be preferably served, is had extensive Application prospect and huge economic value.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims

1. inner ring (3) and retainer (4) occur for a kind of new harmonic bearing, including flexible tooth outer shroud (1), rolling element (2), wave, It is characterized in that, the flexible tooth outer shroud (1) is to rely on standard thin-wall bearing and standard harmonic speed reducer, it is soft to be designed as standard Property tooth outer shroud, and flexible tooth outer shroud (1) be equipped with bearing surface tooth, for connect it is matched use determine steel wheel internal tooth (5)；Institute It is corresponding with standard thin-wall bearing to state rolling element (2), it is ellipse that inner ring (3), which occurs, for the wave, with standard thin-wall bearing and mark Quasi- harmonic wave speed reducing machine is to rely on, raceway (6), long axis (B) and short axle (A), and long axis (B) and short axle (A) length are unequal.

2. a kind of new harmonic bearing according to claim 1, which is characterized in that inner ring (3) occurs for the wave with standard Thin-wall bearing and standard harmonic speed reducer are to rely on, and inner ring occurs for the wave for being designed as unicast or more waves according to actual needs.

3. a kind of new harmonic bearing according to claim 1, which is characterized in that the flexible tooth outer shroud (1) is variable Shape thin-wall construction, thickness ＜ 0.5mm.

4. a kind of new harmonic bearing according to claim 1, which is characterized in that the retainer (4) is skeleton, thereon Uniformly it is provided with the first groove (41) being adapted with rolling element (2) size.

5. a kind of new harmonic bearing according to claim 1, which is characterized in that the rolling element (2) is to be embedded in guarantor Hold the sphere on frame (4).

6. a kind of new harmonic bearing according to any one of claims 1 to 5, which is characterized in that inner ring occurs for the wave (3) inner side edge is equipped with the second groove (31), for connecting external input shaft.