CN205331356U

CN205331356U - Novel cam

Info

Publication number: CN205331356U
Application number: CN201520982160.0U
Authority: CN
Inventors: 朱金良
Original assignee: Jiaxing Wanli Electromechanical Control Equipment Co Ltd
Current assignee: Jiaxing Wanli Electromechanical Control Equipment Co Ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2016-06-22
Anticipated expiration: 2025-11-27

Abstract

The utility model relates to a novel cam, including A disc -shaped's wheel body, its characterized in that: the center of this wheel body is provided with the connecting hole, be provided with the first recess of arcs of recesses form in all being on the outline of this wheel body, second recess and third recess, first recess, radius homogeneous phase of second recess and third recess etc, first recess is first arc portion with the junction of second recess, the radius of this first arc portion and the radius ratio of first recess are 0.25 -0.3, the peak of this first arc portion is wheel body radial 320 with the distance of wheel body outline, the straight line at the central point of first recess and wheel body centre of a circle place and the central point of second recess are 35 degrees with the angle that the straight line became at wheel body centre of a circle place, the utility model discloses lie in: through setting up three recess on the wheel body outline, the effectual transmission orbit that has increased the wheel body can satisfy existing machinery automated production's demand to the efficiency of cam in the use has been improved.

Description

A kind of new type of cam

Technical field

This utility model relates to mechanical field, particularly to a kind of new type of cam。

Background technology

Cam mechanism is usually by cam, the higher pair mechanism of driven member and three component compositions of frame。Cam generally makees continuous constant velocity rotation, and driven member according to requirements designs and makes it obtain the motion of certain rule, and cam mechanism can realize the movement needs of complexity, is widely used in various automated and semi-automatic machinery。

Existing cam includes wheel body, and the outline of this wheel body is made up of arc surface and even surface, and the transmission track of this cam is fairly simple, it is impossible to meet the demand of existing machinery automated production；And this cam in use efficiency is poor。

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is in that to provide the new type of cam that a kind of transmission track is diversified and efficiency is higher。

The technical solution of the utility model is achieved in that a kind of new type of cam, including wheel body in the form of annular discs, it is characterized in that: this wheel body be provided centrally with connecting hole, the outline of this wheel body is provided with the first groove all in imploded arcs shape, second groove and the 3rd groove, first groove, the radius of the second groove and the 3rd groove is all equal, the junction of the first groove and the second groove is the first curved portions, the radius of this first curved portions and the radii ratio of the first groove are 0.25-0.3, the peak of this first curved portions and distance is wheel body radius the 3/20 of wheel body outline, angle formed by the straight line at the central point of the first groove and place, the wheel body center of circle and the central point of the second groove and the straight line at place, the wheel body center of circle is 35 degree, angle formed by the straight line at the central point of the second groove and place, the wheel body center of circle and the central point of the 3rd groove and the straight line at place, the wheel body center of circle is 105 degree, described wheel body is additionally provided with driving hole, the center of circle of this driving hole and the distance in the center of circle of connecting hole are 0.75 with the ratio of wheel body radius。

By adopting technique scheme, by arranging three grooves on wheel body outline, it is effectively increased the transmission track of wheel body, the demand of existing machinery automated production can be met, thus improve cam efficiency in use, driving hole coordinates upper live-roller, cam can be made to have the activation point driving different angles, expand driving track, thus further increasing the use scope of this disc cam, when wherein the radius of this first curved portions and the radii ratio of the first groove are less than 0.25, owing to the radius of this first curved portions is less, the track making cam is smoother, do not reach transmission effect, when the radius of this first curved portions and the radii ratio of the first groove are more than 0.3, the track causing this place is loftier, do not reach transmission effect, therefore the radius of the first curved portions and the radii ratio of the first groove are controlled when 0.25-0.3, best results。

This utility model is further arranged to: the junction of the first described groove and wheel body outline is provided with the second curved portions, and the two ends of this second curved portions are tangent with the first groove and wheel body outline respectively。

By adopting technique scheme, the transmission of cam is effectively played by this second curved portions conducts smoothly, and this curved portions reduces the abrasion between driving member, and driving member effectively plays the effect of protection。

This utility model is further arranged to: the junction of the second described groove and wheel body outline is provided with the 3rd curved portions, and the two ends of the 3rd curved portions are tangent with the second groove and wheel body outline respectively。

By adopting technique scheme, the transmission of cam is effectively played by the 3rd curved portions conducts smoothly, and this curved portions reduces the abrasion between driving member, and driving member effectively plays the effect of protection。

This utility model is further arranged to: the second described curved portions is equal with the radius of the 3rd curved portions, and the radius of the second curved portions is more than the radius of the first curved portions。

By adopting technique scheme, the radius of the second curved portions and the 3rd curved portions is bigger, therefore the curved portions at this place is shallower, be conducive to the entrance of driving member and roll out, the radius of this first curved portions is less, therefore this place is loftier, has the effect driving driving member, therefore this design comparison is reasonable, it is simple to realize。

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。

Fig. 1 is this utility model detailed description of the invention structural representation。

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。

As shown in Figure 1, the utility model discloses a kind of new type of cam, including wheel body 1 in the form of annular discs, in this utility model specific embodiment, this wheel body 1 be provided centrally with connecting hole 11, the outline of this wheel body 1 is provided with the first groove 12 all in imploded arcs shape, second groove 13 and the 3rd groove 14, first groove 12, the radius of the second groove 13 and the 3rd groove 14 is all equal, the junction of the first groove 12 and the second groove 13 is the first curved portions 15, the radius of this first curved portions 15 and the radii ratio of the first groove 12 are 0.25-0.3, the peak of this first curved portions 15 and distance L is wheel body 1 radius the 3/20 of wheel body 1 outline, angle α formed by the straight line at the central point of the first groove 12 and place, wheel body 1 center of circle and the central point of the second groove 13 and the straight line at place, wheel body 1 center of circle is 35 degree, angle β formed by the straight line at the central point of the second groove 13 and place, the wheel body center of circle and the central point of the 3rd groove 14 and the straight line at place, the wheel body center of circle is 105 degree, described wheel body 1 is additionally provided with driving hole 18, the distance in the center of circle of the center of circle of this driving hole 18 and connecting hole 11 draws the ratio with wheel body half 1 footpath to be 0.75。

In this utility model specific embodiment, the first described groove 12 and the junction of wheel body 1 outline are provided with the second curved portions 16, and the two ends of this second curved portions 16 are tangent with the first groove 12 and wheel body 1 outline respectively。

In this utility model specific embodiment, the second described groove 13 and the junction of wheel body 1 outline are provided with the 3rd curved portions 17, and the two ends of the 3rd curved portions 17 are tangent with the second groove 13 and wheel body 1 outline respectively。

In this utility model specific embodiment, the second described curved portions 16 is equal with the radius of the 3rd curved portions 17, and the radius of the second curved portions 16 is more than the radius of the first curved portions 15。

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model。

Claims

1. a new type of cam, including wheel body in the form of annular discs, it is characterized in that: this wheel body be provided centrally with connecting hole, the outline of this wheel body is provided with the first groove all in imploded arcs shape, second groove and the 3rd groove, first groove, the radius of the second groove and the 3rd groove is all equal, the junction of the first groove and the second groove is the first curved portions, the radius of this first curved portions and the radii ratio of the first groove are 0.25-0.3, the peak of this first curved portions and distance is wheel body radius the 3/20 of wheel body outline, angle formed by the straight line at the central point of the first groove and place, the wheel body center of circle and the central point of the second groove and the straight line at place, the wheel body center of circle is 35 degree, angle formed by the straight line at the central point of the second groove and place, the wheel body center of circle and the central point of the 3rd groove and the straight line at place, the wheel body center of circle is 105 degree, described wheel body is additionally provided with driving hole, the center of circle of this driving hole and the distance in the center of circle of connecting hole are 0.75 with the ratio of wheel body radius。

2. new type of cam according to claim 1, it is characterised in that: the junction of the first described groove and wheel body outline is provided with the second curved portions, and the two ends of this second curved portions are tangent with the first groove and wheel body outline respectively。

3. new type of cam according to claim 2, it is characterised in that: the junction of the second described groove and wheel body outline is provided with the 3rd curved portions, and the two ends of the 3rd curved portions are tangent with the second groove and wheel body outline respectively。

4. new type of cam according to claim 3, it is characterised in that: the second described curved portions is equal with the radius of the 3rd curved portions, and the radius of the second curved portions is more than the radius of the first curved portions。