CN207715655U - A kind of wave producer - Google Patents

Abstract

The utility model is related to a kind of harmonic wave speed reducing machine, more particularly to a kind of wave producer, including cam and flexible bearing, cam includes rotation axis and cam ring, and cam ring is arranged on the rotating shaft, and flexible bearing is set on the outside of cam ring.The utility model by cam by being arranged to rotation axis and cam ring so that cam ring coordinates with flexible bearing, and when flexible bearing damages, cam ring easy tos produce abrasion, it is only necessary to replace cam ring, achieve the effect that reduce replacement cost.

Description

A kind of wave producer

Technical field

The utility model is related to a kind of harmonic wave speed reducing machine, more particularly to a kind of wave producer.

Background technology

Harmonic wave speed reducing machine includes mainly three big component of wave producer, flexbile gear and firm gear, and flexbile gear is annular in shape, cup-shaped or carnival hat Shape thin-walled, flexbile gear outer ring and firm gear inner ring are provided with the tooth worked in coordination, and that there are teeth is poor for flexbile gear outer ring and firm gear inner ring（It is general soft Tooth number is less than the firm gear number of teeth）, wave producer and firm gear be located at the inner side and outer side of flexbile gear, and wave producer is elliptoid Cam, the flexbile gear and firm gear of wave producer top part are at a fully engaged, and the flexbile gear and firm gear at remaining position of wave producer are in half Engagement or the state disengaged can drive flexbile gear to generate periodically deformation, make the different portions of flexbile gear when wave producer rotates Bit period is engaged with firm gear, poor since there are teeth between flexbile gear and firm gear, and the opposite firm gear of flexbile gear meeting rotates, and reaches To the purpose of deceleration.

As shown in Figure 1, comprising cam 11 and flexible bearing 12, cam 11 is ellipticity and is existing wave producer structure Integral type, 12 inner ring of flexible bearing is set in the outside of cam 11, the outer ring of flexible bearing 12 and the fit inside of flexbile gear, when convex Flexible bearing 12 can be driven to rotate when 11 rotation of wheel and generate periodically deforming, the periodically deforming of flexible bearing 12 can band Dynamic flexbile gear generates periodically deforming.Disadvantage is that flexible bearing 12 is vulnerable part, and when usage time is longer, cam 11 are easy to generate abrasion because of the damage of flexible bearing 12, need replacing entire cam 11, maintenance cost is larger.

Utility model content

The purpose of this utility model is to provide a kind of wave producer, solves when cam generates abrasion and needs integral replacing, The higher problem of maintenance cost.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of wave producer, including cam and flexible bearing, cam includes rotation axis and cam ring, the outer wheel face of cam ring In ellipticity, cam ring is arranged on the rotating shaft, and flexible bearing is set on the outside of cam ring.

By using above-mentioned technical proposal, cam ring is vulnerable part, and cam ring is only replaced when cam ring is worn , achieved the purpose that reduce replacement cost.

Preferably, rotation axis is provided with the shaft shoulder in the side of cam ring, the shaft shoulder is for limiting cam ring towards the shaft shoulder Direction occur axial float.

By using above-mentioned technical proposal, the setting of the shaft shoulder can limit cam ring and play occurs towards the direction of the shaft shoulder.

Preferably, being provided with block between cam ring and the shaft shoulder, block is arranged on the rotating shaft, the both sides of block respectively with The shaft shoulder and cam ring abut.

By using above-mentioned technical proposal, the setting of block can facilitate positioning and installation cam ring, moreover it is possible to prevent cam Circle is contacted with the shaft shoulder, generates abrasion.

Preferably, the thickness of cam ring is less than the thickness of flexible bearing, the outer diameter of block is less than the outer diameter of cam ring.

By using above-mentioned technical proposal, the whole axial dimension of cam can be reduced.

Preferably, protruding restraining position ring block on the outside of block, the spacing ring is abutted with the inner ring of flexible bearing.

By using above-mentioned technical proposal, spacing ring can limit flexible bearing, prevent flexible bearing play.

Preferably, rotation axis opens up fluted in side of the cam ring far from the shaft shoulder, it is connected on groove for limiting Clamp spring of the cam ring towards groove direction play.

By using above-mentioned technical proposal, clamp spring can very stably limit convex wheel rim, more preferably with shaft shoulder fiting effect.

Preferably, being provided with catch between clamp spring and cam ring, the catch is arranged on the rotating shaft, and the both sides of catch It is abutted respectively with cam ring and clamp spring.

By using above-mentioned technical proposal, catch can separate cam ring and clamp spring, reduce the abrasion of cam ring, while The degree for abutting cam ring can be increased.

Preferably, cam ring offers catch slot close to the one side of catch, the catch is located in catch slot.

By using above-mentioned technical proposal, catch slot can reduce the whole axial dimension of cam, and can increase cam The intensity of circle.

In conclusion the utility model has the following technical effects：By the way that cam is arranged to rotation axis and cam ring, make It obtains cam ring with flexible bearing to coordinate, when flexible bearing damages, cam ring easy tos produce abrasion, it is only necessary to replace cam ring i.e. Can, achieve the effect that reduce maintenance cost.

Description of the drawings

Fig. 1 is the mounting structure schematic diagram of wave producer in the prior art；

Fig. 2 is the installation cross-sectional view of the utility model.

In figure, 11, cam；111, rotation axis；1111, the shaft shoulder；1112, groove；1113, clamp spring；112, cam ring； 1121, catch slot；113, block；1131, spacing ring；114, catch；12, flexible bearing.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.

As shown in Fig. 2, a kind of wave producer, including cam 11 and flexible bearing 12, the inner ring and cam of flexible bearing 12 11 cooperations, the outer ring of flexible bearing 12 and the flexbile gear of harmonic speed reducer coordinate.

As shown in Fig. 2, cam 11 includes rotation axis 111 and cam ring 112, cam ring 112 is set in rotation axis 111, Cam ring 112 is ring-type, and the outer wheel face of cam ring 112 is ellipse, and cam ring 112 may be used interference with rotation axis 111 and match Conjunction, spline fitted or key cooperation, ensure to relatively rotate between cam ring 112 and rotation axis 111, flexible bearing 12 Inner ring be set in the outside of cam ring 112.

As shown in Fig. 2, rotation axis 111 is provided with the shaft shoulder 1111 in the left side of cam ring 112, rotation axis 111 is in cam ring 112 right side opening is equipped with groove 1112, is connected with clamp spring 1113 on groove 1112, the both sides of cam ring 112 pass through the shaft shoulder respectively 1111 and clamp spring 1113 limit and fix cam ring 112, prevent the cam ring 112 from axial float occurs in rotation axis 111.

Cam ring 112 can be abutted directly with the shaft shoulder 1111 and clamp spring 1113, to limit and fix cam ring 112.

In addition, as shown in Fig. 2, block 113 can be arranged between cam ring 112 and the shaft shoulder 1111, block 113 is set in rotation On axis 111, the both sides of block 113 are abutted with the shaft shoulder 1111 and cam ring 112 respectively；It is set between clamp spring 1113 and cam ring 112 Be equipped with catch 114, catch 114 is set in rotation axis 111, and the both sides of catch 114 respectively with cam ring 112 and clamp spring 1113 It abuts.Block 113 can avoid cam ring 112 from being contacted with the shaft shoulder 1111 and clamp spring 1113 with the setting of catch 114, and then avoid Rotation axis 111 is worn when cam ring 112 is damaged and failed.

Preferably, as shown in Fig. 2, the thickness of cam ring 112 is less than the thickness of flexible bearing 12, the outer diameter of block 113 is small In the outer diameter of cam ring 112；Cam ring 112 offers catch slot 1121, the catch 114 close to the one side of catch 114 In in catch slot 1121.It is arranged in this way, block 113 can be reduced to the distance of catch 114, to reduce the whole of cam 11 Body axial dimension.

As shown in Fig. 2, 113 outside of block can protrude setting restraining position ring block 1131, the spacing ring 1131 and flexible bearing 12 inner ring abuts, for abutting and positioning flexible bearing 12.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (8)

1. a kind of wave producer, including cam（11）And flexible bearing（12）, which is characterized in that cam（11）Including rotation axis （111）And cam ring（112）, cam ring（112）Outer wheel face be in ellipticity, cam ring（112）It is set in rotation axis（111） On, flexible bearing（12）It is set in cam ring（112）Outside.

2. a kind of wave producer according to claim 1, which is characterized in that rotation axis（111）In cam ring（112）One Side is provided with the shaft shoulder（1111）, the shaft shoulder（1111）For limiting cam ring（112）Towards the shaft shoulder（1111）Direction occur Axial float.

3. a kind of wave producer according to claim 2, which is characterized in that cam ring（112）With the shaft shoulder（1111）Between It is provided with block（113）, block（113）It is set in rotation axis（111）On, block（113）Both sides respectively with the shaft shoulder（1111） And cam ring（112）It abuts.

4. a kind of wave producer according to claim 3, which is characterized in that cam ring（112）Thickness be less than flexible shaft It holds（12）Thickness, block（113）Outer diameter be less than cam ring（112）Outer diameter.

5. a kind of wave producer according to claim 4, which is characterized in that block（113）Protrude restraining position ring block in outside （1131）, the spacing ring（1131）With flexible bearing（12）Inner ring abut.

6. according to a kind of any wave producer of claim 2~5, which is characterized in that rotation axis（111）In cam ring （112）Far from the shaft shoulder（1111）Side open up it is fluted（1112）, in groove（1112）On be connected with for limiting cam ring （112）Towards groove（1112）The clamp spring of direction play（1113）.

7. a kind of wave producer according to claim 6, which is characterized in that clamp spring（1113）And cam ring（112）Between It is provided with catch（114）, the catch（114）It is set in rotation axis（111）On, and catch（114）Both sides respectively with cam Circle（112）And clamp spring（1113）It abuts.

8. a kind of wave producer according to claim 7, which is characterized in that cam ring（112）Close to catch（114）One Side offers catch slot（1121）, the catch（114）Positioned at catch slot（1121）It is interior.