CN103758979A - Double cam mechanism - Google Patents
Double cam mechanism Download PDFInfo
- Publication number
- CN103758979A CN103758979A CN201310602266.9A CN201310602266A CN103758979A CN 103758979 A CN103758979 A CN 103758979A CN 201310602266 A CN201310602266 A CN 201310602266A CN 103758979 A CN103758979 A CN 103758979A
- Authority
- CN
- China
- Prior art keywords
- cam
- double cam
- double
- camshaft
- slotted eye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/08—Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams
Abstract
The invention belongs to the technical field of electric switches, and particularly relates to a double cam mechanism which comprises a fixed roller, a driven roller, a cam shaft and a double cam. A slotted hole is formed in the center of the double cam along the long diameter direction of the cam, the double cam is assembled on the cam shaft through the slotted hole, the double cam includes two cams with different base circle radiuses, the cam with the large base circle radius contacts with the driven roller, and the cam with the small base circle radius contacts with the fixed roller. Strokes of driven components of the cams can be enlarged under the permissive condition of the maximum pressure angles of the cams.
Description
Technical field
The invention belongs to transmission device technical field.
Background technique
Existing cam is in order to obtain larger stroke, conventionally adopt larger cam, but for some mini-plants, cannot arrange larger cam, artificer generally can realize the stroke that increases driven member by increasing the mode of cam pressure angle, but this method tends to make the maximum pressure angle of cam to exceed permission boundary, occurs locking phenomenon.
Summary of the invention
The invention is intended to provide a kind of double cam mechanism that makes to increase driven member stroke.
Object of the present invention can reach by following measures: double cam mechanism, comprise fixed idler whell, driven roller and camshaft, also comprise double cam, the center of double cam has the slotted eye arranging along cam major diameter direction, and this double cam is assembled on camshaft by slotted eye; Described double cam consists of two different cams of Base radius, and the camming surface that Base radius is larger contacts with driven roller, and the cam that Base radius is less contacts with fixed idler whell.
Technique scheme difference with the prior art is: because double cam is arranged on camshaft by slotted eye, double cam can be along axis Vertical Square upward sliding, the lower end of double cam contacts with fixed idler whell, upper end contacts with driven roller, like this, cam slides along the direction vertical with axis when rotated simultaneously, the rising of driven roller form be exactly two apart from sum, one is the lift of the camming surface that contacts with driven roller, another is the mobile stroke of double cam rising itself, thereby has increased the total kilometres of driven roller.
Further, described slotted eye is positioned at the direction groove that double cam center arranges, and camshaft is fixed with limiting stopper in this square groove disposal place, square groove, and limiting stopper can carry out the slip of double cam spacing, prevents the left and right skew of double cam.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the double cam mechanism embodiment's of the present invention structural representation.
Embodiment
As shown in Figure 1: double cam mechanism, comprise fixed idler whell 1, driven roller 2, camshaft 3 and double cam 4, the center of double cam 4 has along double cam 4 major diameter directions and is provided with square groove 6, in this square groove 6, be penetrated with slotted eye 5, this double cam 4 is assembled on camshaft 3 by slotted eye 5, and camshaft 3 is fixed with limiting stopper 7 at direction groove 6 places; Described double cam 4 upper ends consist of two different cams of Base radius, are cam A and cam B in figure, and the cam B that Base radius is larger contacts with driven roller 2, and cam A contacts with fixed idler whell.Double cam 4 center one sides have square groove 6, and camshaft 3 is fixed with limiting stopper 7 in the position of these square groove 6 correspondences.
The foregoing is only the detailed description of preferred embodiment of the present invention, be not used for limiting the present invention, the embodiment of all similar variations of doing according to creation spirit of the present invention, all should be contained among the present invention.
Claims (2)
1. double cam mechanism, comprises fixed idler whell, driven roller and camshaft, it is characterized in that: also comprise double cam, the center of double cam has the slotted eye arranging along cam major diameter direction, and this double cam is assembled on camshaft by slotted eye; Described double cam consists of two different cams of Base radius, the camming surface that Base radius is larger and moving roller contact, and the cam that Base radius is less contacts with fixed idler whell.
2. double cam mechanism according to claim 1, is characterized in that: described in square groove square groove, slotted eye is positioned at the direction groove that double cam center arranges, and camshaft is fixed with limiting stopper in this square groove disposal place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602266.9A CN103758979A (en) | 2013-11-25 | 2013-11-25 | Double cam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602266.9A CN103758979A (en) | 2013-11-25 | 2013-11-25 | Double cam mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103758979A true CN103758979A (en) | 2014-04-30 |
Family
ID=50526268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602266.9A Pending CN103758979A (en) | 2013-11-25 | 2013-11-25 | Double cam mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103758979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134903A (en) * | 2015-08-07 | 2015-12-09 | 柳超 | Large-stroke cam mechanism based on pulley transmission |
-
2013
- 2013-11-25 CN CN201310602266.9A patent/CN103758979A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134903A (en) * | 2015-08-07 | 2015-12-09 | 柳超 | Large-stroke cam mechanism based on pulley transmission |
| CN105134903B (en) * | 2015-08-07 | 2017-09-15 | 李烈熊 | A kind of cam mechanism of the big stroke based on pulley drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |