CN201344236Y

CN201344236Y - Cam mechanism with adjustable elevation and subsidence distance

Info

Publication number: CN201344236Y
Application number: CNU200820157454XU
Authority: CN
Inventors: 杨伟江
Original assignee: SHANGHAI YUANDONG PHARMACEUTICAL MACHINERY GENERAL FACTORY
Current assignee: Shanghai Chinasun Far East Pharmaceutical Co ltd; SHANGHAI FAR EAST PHARMACEUTICAL MACHINERY Co.,Ltd.
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2009-11-11
Anticipated expiration: 2018-12-19

Abstract

The utility model discloses a cam mechanism with adjustable elevation and subsidence distance, which comprises a bracket, a cam, a swing shaft connected with the cam, a guide shaft arranged on the bracket, an elevation and subsidence swing shaft sleeve connected with the swing shaft, an elevator and the like; a movable adjusting seat is arranged on the guide shaft, the swing shaft is connected with the movable adjusting seat through a movable shaft sleeve on the swing shaft; the movable shaft sleeve is connected to one end of the movable adjusting seat through a movable shaft; and the movable shaft sleeve can rotate around the movable shaft. The utility model avoids the limits by cam curve on the distance of the cam and the trouble of replacing the cam, and has the advantages of simple structure, convenient use and wide popularization.

Description

A kind ofly can regulate the cam mechanism that journey is drawn in lifting

Technical field

The cam drive that the utility model relates in particular a kind ofly can be regulated the cam mechanism that journey is drawn in lifting.

Background technique

Cam is a member with curved profile or groove, is generally driving link, makes constant speed rotation motion or linear reciprocating motion.

Cam mechanism divides by the form of cam disc cam, wedge cam and cylindrical cam.The relative movement of disc cam, wedge cam and its driven member is plane motion, thus belong to planar cam mechanism, and cylindrical cam is to belong to spatial cam from the motion with its moving part.The basic characteristics of cam mechanism in application are to make driven member to obtain the complicated characteristics of motion.Because the characteristics of motion of driven member depends on cam profile curve, so when using, as long as it is just passable to design the profilogram of cam according to the characteristics of motion of driven member.Therefore, in mechanical design field, cam uses quite extensive at present.And why cam mechanism obtains using so widely, mainly be because cam mechanism can be realized various complicated requirement, cam has the curve working surface, only need the suitable cam profile of design, just can make driven member obtain the required characteristics of motion, and simple in structure, compact, design is convenient, and its biggest advantage is to reset.

Cam mechanism is the circuit action, and just the change of motor current makes that action is reciprocal in a certain segment limit of cam, but can not obtain very big displacement amount, becomes very big because big displacement amount means the cam diameter.After existing cam is contained on the equipment, its journey of drawing is changeless, in some transmission control and manipulator, sometimes because of variation and other reason of product or testpieces, need the journey of drawing of cam to make corresponding changes, and the stroke of cam is owing to be subjected to the restriction of cam curve, can't free adjustment, so can only pull down original cam, change the cam that another kind draws journey, so promptly bother very much, be difficult for accomplishing again, want to continuously change the journey of drawing of cam, greatly difficult especially.

Summary of the invention

The utility model purpose is, the deficiencies in the prior art have been overcome, and the adjusting that a kind of stroke is provided can not be subjected to the restriction of cam curve, in the cam stroke scope, can the free adjustment lift, be implemented in the transmission purpose that changes cam stroke, have and simple in structure, easy to use can regulate the cam mechanism that journey is drawn in lifting.

To achieve these goals, the utility model is to realize by the following technical solutions:

A kind ofly can regulate the cam mechanism that journey is drawn in lifting, comprise support, cam, the swing axis that is connected with cam, be arranged on the axis of guide on the support, lifting and swinging axle sleeve and the elevator that is connected with swing axis; It is characterized in that, the described axis of guide is provided with mobile adjustment seat, described swing axis be by can being connected on the mobile adjustment seat at the movable axis cover that slides on the swing axis, and described movable axle sleeve is connected an end of mobile adjustment seat by movable axis, and described movable axle sleeve can rotate around movable axis.

Described mobile adjustment seat and the movable axle sleeve that is fixed in the above can move freely on swing axis, thereby changed movable axis and be enclosed within position of the fulcrum on the swing axis, the position of swing axis output terminal changed, realized that swing axis drives the lifting and swinging axle sleeve and drives the change as the stroke of oscilaltion campaign along the center of axis of guide fixed base of elevator and the lifting axis of guide.

Described swing axis one end is connected with cam by bearing, it is fast that the described swing axis the other end connects lifting by the lifting and swinging axle sleeve, swing axis is enclosed within movable axle sleeve and the lifting and swinging axle sleeve, movable axle sleeve is fixed on the mobile adjustment seat and can rotates along movable shaft, the lifting and swinging axle sleeve is fixed on the elevator, also can rotate along movable shaft.

The described axis of guide is arranged on the support, described support is by the adjusting axle that has been threaded, described adjusting axle is provided with handwheel, driving support by rotation hand wheel moves, thereby mobile guide axle, change the position of the fulcrum of mobile adjustment seat on swing axis, the position of swing axis output terminal is changed, realized that swing axis drives the lifting and swinging axle sleeve and drives the change as the stroke of oscilaltion campaign along the center of axis of guide fixed base of elevator and the lifting axis of guide.

The utility model is by changing the position of the fulcrum on the swing axis, change the stroke of swing axis output terminal oscilaltion campaign, the adjusting of stroke can not be subjected to the restriction of cam curve, in the cam stroke scope, can the free adjustment lift, thus realized in transmission, changing the purpose of cam stroke, avoided the stroke of cam to be subjected to the restriction of cam curve, and change loaded down with trivial details that cam brings, and have advantage simple in structure, easy to use, can extensively promote the use of.

Description of drawings

Fig. 1 is a plan view of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the plan view of Fig. 1.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.

With reference to figure 1, of the present utility modelly a kind ofly can regulate the cam mechanism that journey is drawn in lifting, comprise cam 6, swing axis 13, support 2, the axis of guide 4, adjusting axle 3, handwheel 12, panel 1 and elevator 10 etc.; Installation panel 1 on support 2, the adjusting axle 3 that is installed with the axis of guide 4 on the support 2 under the panel 1 and is threaded with support 2 is fixed with the handwheel of being convenient to rotate 12 at adjusting axle 3 left ends, by rotation hand wheel 12, drive the screw thread rotation on the adjusting axle 3, cause moving of support 2.In the present embodiment, mobile adjustment seat 5 is installed on the axis of guide 4, this moves adjustment seat 5 can be trapezium structure, but also can be set to other polygonal, and different shapes is set as required.Big end in trapezoidal mobile adjustment seat 5 connects the axis of guide 4, and its small end is connected with rotatable movable axle sleeve 7 by movable axis, and this movable axis can be bearing or bearing pin; This activity axle sleeve 7 can be the fixed center rotation of movable axle sleeve 7 around movable axis.Swing axis 13 is enclosed within on the movable axle sleeve 7, and should can on swing axis 13, move freely by activity axle sleeve 7, change the position of movable axle sleeve 7 on swing axis 13 by moving described mobile adjustment seat 5, movable axle sleeve 7 and swing axis 13 can rotate around movable axis, are convenient to change the lifting angle of swing axis 13 output terminals.

With reference to figure 2, in the utility model, swing axis 13 1 ends are connected by bearing 17 with cam 6, and the other end of swing axis 13 is connected lifting fast 10 by lifting and swinging axle sleeve 14, this lifting and swinging axle sleeve 14 is fixed on the elevator 10, also can rotate along fixed center.In the present embodiment, elevator 10 is installed on the lifting axis of guide 9, the two ends of this lifting axis of guide 9 are fixed on the lifting axis of guide 9 on the fixed bearing 8 by axis of guide fixed base 11, in fixed bearing 8 bottoms fixed bearing base plate 16 are installed, and are used for fixing described fixed bearing 8.

With reference to figure 3, cam 6 in the utility model is by transmission shaft 15 driven rotary, drive 17 bearings again and carry out regular movement along cam curve, bearing 17 is installed on the swing axis 13, transmit motion on the swing axis 13, swing axis 13 overlaps on the movable axle sleeve 7 that is fixed on again on the mobile adjustment seat 5, with the cam curve conversion of motion for being the oscillating motion of fulcrum with movable axle sleeve 7 centers of rotation, again by swing axis 13 drive lifting and swinging axle sleeves 14 drive elevators 10 and the lifting axis of guide 9 along the center of guide securement seat 11 do the oscilaltion campaign.The utility model can move freely mobile adjustment seat 5 and the movable axle sleeve 7 that is fixed in the above on swing axis 13, thereby changed the position of the fulcrum of movable axle sleeve 7 on swing axis 13, the position of swing axis 13 output terminals changed, realized that swing axis 13 drives lifting and swinging axle sleeves 14 and drives the change as the stroke of oscilaltion campaign along the center of axis of guide fixed base 11 of elevators 10 and the lifting axis of guide 9.

The utility model is to be connected by bearing 17 with swing axis 13 at cam 6, swing axis 13 is enclosed within movable axle sleeve 7 and the lifting and swinging axle sleeve 14, movable axle sleeve 7 is fixed on the mobile adjustment seat 5 and can rotates along fixed center, lifting and swinging axle sleeve 14 is fixed on the elevator 10, also can rotate along fixed center, mobile adjustment seat 5 is installed on the axis of guide 4, the axis of guide 4 is fixed on the support 2, rotate handwheel 12, drive the screw thread of adjusting axle 3, make mobile adjustment seat 5, movable axle sleeve 7 can be along swing axis 13 move left and right; Thereby mobile adjustment seat 5, the position of movable axle sleeve 7 on swing axis 13 are changed, finally make the lifting and swinging axle sleeve 14 that is enclosed within on the swing axis 13, elevator 10, the lifting axis of guide about in the of 9 stroke variation has taken place, reached the purpose that changes cam stroke, avoided the stroke of cam to be subjected to the restriction of cam curve, and change loaded down with trivial details that cam brings, and have advantage simple in structure, easy to use, can extensively promote the use of.

More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1, a kind ofly can regulate the cam mechanism that journey is drawn in lifting, comprise support, cam, the swing axis that is connected with cam, be arranged on the axis of guide on the support, lifting and swinging axle sleeve and the elevator that is connected with swing axis; It is characterized in that, the described axis of guide is provided with mobile adjustment seat, described swing axis is connected with mobile adjustment seat by the movable axle sleeve that can move on swing axis, and described movable axle sleeve is connected an end of mobile adjustment seat by movable axis, and described movable axle sleeve can rotate around movable axis.

2, according to claim 1ly a kind ofly can regulate the cam mechanism that journey is drawn in lifting, it is characterized in that, described swing axis one end is connected with cam by bearing, it is fast that the described swing axis the other end connects lifting by the lifting and swinging axle sleeve, described lifting and swinging axle sleeve is fixed on the elevator, and described swing axis is enclosed within movable axle sleeve and the lifting and swinging axle sleeve.

3, according to claim 1ly a kind ofly can regulate the cam mechanism that journey is drawn in lifting, it is characterized in that the described axis of guide is arranged on the support, described support is by the adjusting axle that has been threaded.

4, according to claim 3ly a kind ofly can regulate the cam mechanism that journey is drawn in lifting, it is characterized in that, also be provided with handwheel on the described adjusting axle.