CN106763606B - Outer sheave mechanism with multiple stop-and-go ratios and use method thereof - Google Patents
Outer sheave mechanism with multiple stop-and-go ratios and use method thereof Download PDFInfo
- Publication number
- CN106763606B CN106763606B CN201611109853.4A CN201611109853A CN106763606B CN 106763606 B CN106763606 B CN 106763606B CN 201611109853 A CN201611109853 A CN 201611109853A CN 106763606 B CN106763606 B CN 106763606B
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- Prior art keywords
- shaft
- grooved pulley
- driving plate
- driving
- stop
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Classifications
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- 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
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
- F16H27/06—Mechanisms with driving pins in driven slots, e.g. Geneva drives
Abstract
The invention relates to an outer sheave mechanism with a plurality of stop-and-go ratios and a use method thereof. The invention comprises a grooved pulley, a grooved pulley shaft, a driving dial shaft, a cylindrical pin, a driving dial and a base; the grooved pulley is provided with a radial groove and an inward concave locking arc, the driving plate is provided with an outward convex arc, three pin holes are formed in the driving plate and are used for installing cylindrical pins, the grooved pulley is connected with a grooved pulley shaft, the driving plate is connected with a driving plate shaft, and the axes of the grooved pulley shaft and the driving plate shaft are parallel; two holes are formed in the base, one hole is assembled with the grooved pulley shaft, and the other hole is assembled with the driving dial shaft; the number of the installation cylindrical pins is one, two or three. Compared with other external grooved pulley mechanisms, the invention can realize the conversion of 3 dynamic stop ratios; the mechanism has the advantages of simple structure, easy processing, reliable work, accurate rotation angle and high mechanical efficiency.
Description
Technical Field
The invention relates to an external sheave mechanism with a plurality of motion stop ratios, which is particularly suitable for an automatic production line with intermittent motion and the motion stop ratio meeting the requirements of 3:1, 1:1 or 1:3, for example, the external sheave mechanism is used as a workpiece conveying or indexing mechanism in the automatic production line.
Background
The grooved pulley mechanism has the advantages of unidirectional intermittent periodic rotation, simple structure, easy manufacture, reliable work and the like. The general grooved pulley mechanism is used in automatic machines, light industrial machines and instruments with a not very high rotating speed, such as film feeding mechanisms in film projectors, and the grooved pulley drives films to carry out intermittent feeding, so that dynamic pictures are formed. In addition, they are also used in automated production lines as workpiece transfer or indexing mechanisms.
One external sheave mechanism in the current market can only realize one dynamic stop ratio, and one external sheave mechanism needs to be made again to realize other dynamic stop ratios, so that materials are wasted, and space is occupied for storing the mechanisms.
Disclosure of Invention
The invention provides an external geneva mechanism with a plurality of dynamic stop ratios and a use method thereof, aiming at solving the problem that one external geneva mechanism in the existing market can only realize one dynamic stop ratio.
The technical scheme of the invention is as follows: an outer sheave mechanism with a plurality of stop ratios comprises a sheave 1, a sheave axle 2, a driving dial axle 3, a cylindrical pin 4, a driving dial 5 and a base 6;
the grooved pulley 1 is provided with a radial groove and an inward concave locking arc, the driving plate 5 is provided with an outward convex arc, three pin holes are formed in the driving plate 5 and are used for installing the cylindrical pins 4, the grooved pulley 1 is connected with the pulley shaft 2, the driving plate 5 is connected with the driving plate shaft 3, and the axes of the pulley shaft 2 and the driving plate shaft 3 are parallel; two holes are formed in the base 6, one hole is assembled with the grooved wheel shaft 2, and the other hole is assembled with the driving dial shaft 3;
the number of the mounting cylindrical pins 4 is one, two or three.
The included angle between the connecting lines of the adjacent two pin holes and the central point of the driving plate 5 is 120 degrees.
A method for using an outer sheave mechanism with a plurality of stop-and-go ratios,
a cylindrical pin 4 is arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:3;
two cylindrical pins 4 are arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:1;
three cylindrical pins 4 are installed so that the stop-and-go ratio of the outer sheave mechanism is 3:1.
The working principle of the invention is as follows:
when the cylindrical pin 4 of the driving member driving dial 5 does not enter the radial groove of the sheave 1, the sheave 1 is stationary because the concave locking arc of the sheave 1 is caught by the convex arc of the driving dial 5. The cylindrical pin 4 starts to enter the radial groove position of the grooved pulley 1, and at the moment, the locking arc is released, and the cylindrical pin 4 starts to drive the grooved pulley 1 to move. When the cylindrical pin 4 is separated from the radial groove of the grooved pulley 1, the other concave locking arc of the grooved pulley 1 is blocked by the convex arc of the driving plate 5, so that the grooved pulley 1 is stopped, and the cylindrical pin 4 of the driving plate 5 repeatedly moves and circulates when the cylindrical pin 4 enters the other radial groove of the grooved pulley 1 again. So that the continuous rotation of the driving dial 5 becomes unidirectional intermittent movement of the sheave 1.
When a cylindrical pin 4 is installed, the motion-stop ratio of the outer sheave mechanism is 1:3; when two cylindrical pins 4 are installed, the motion-stop ratio of the outer sheave mechanism is 1:1; when three cylindrical pins 4 are installed, the motion-stop ratio of the outer sheave mechanism is 3:1. The mechanism can realize the conversion of three moving-stopping ratios only by selecting the number of the cylindrical pins 4.
The beneficial effects of the invention are as follows:
1. compared with other external grooved pulley mechanisms, the three-way clutch can realize the conversion of 3 dynamic stop ratios.
2. The mechanism has the advantages of simple structure, easy processing, reliable work, accurate rotation angle and high mechanical efficiency.
Drawings
FIG. 1 is a schematic diagram of the assembly of the mechanism of the present invention;
FIG. 2 is a sheave of the mechanism of the present invention;
FIG. 3 is a sheave shaft of the mechanism of the present invention;
FIG. 4 is an active dial shaft of the mechanism of the present invention;
FIG. 5 is a cylindrical pin of the mechanism of the present invention;
FIG. 6 is an active dial of the mechanism of the present invention;
FIG. 7 is a base of the mechanism of the present invention;
the reference numerals in the drawings: 1-grooved pulley, 2-grooved pulley shaft, 3-driving plate shaft, 4-cylindrical pin, 5-driving plate and 6-base.
Detailed Description
Example 1: as shown in fig. 1-7, an outer sheave mechanism with a plurality of stop-and-go ratios comprises a sheave 1, a sheave axle 2, a driving dial axle 3, a cylindrical pin 4, a driving dial 5 and a base 6;
the grooved pulley 1 is provided with a radial groove and an inward concave locking arc, the driving plate 5 is provided with an outward convex arc, three pin holes are formed in the driving plate 5 and are used for installing the cylindrical pins 4, the grooved pulley 1 is connected with the pulley shaft 2, the driving plate 5 is connected with the driving plate shaft 3, and the axes of the pulley shaft 2 and the driving plate shaft 3 are parallel; two holes are formed in the base 6, one hole is assembled with the grooved wheel shaft 2, and the other hole is assembled with the driving dial shaft 3;
the number of the mounting cylindrical pins 4 is one, two or three.
The included angle between the connecting lines of the adjacent two pin holes and the central point of the driving plate 5 is 120 degrees.
A method for using an outer sheave mechanism with a plurality of stop-and-go ratios,
a cylindrical pin 4 is arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:3;
two cylindrical pins 4 are arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:1;
three cylindrical pins 4 are installed so that the stop-and-go ratio of the outer sheave mechanism is 3:1.
Example 2: as shown in fig. 1-7, an outer sheave mechanism with a plurality of stop-and-go ratios comprises a sheave 1, a sheave axle 2, a driving dial axle 3, a cylindrical pin 4, a driving dial 5 and a base 6;
the grooved pulley 1 is provided with a radial groove and an inward concave locking arc, the driving plate 5 is provided with an outward convex arc, three pin holes are formed in the driving plate 5 and are used for installing the cylindrical pins 4, the grooved pulley 1 is connected with the pulley shaft 2, the driving plate 5 is connected with the driving plate shaft 3, and the axes of the pulley shaft 2 and the driving plate shaft 3 are parallel; two holes are formed in the base 6, one hole is assembled with the grooved wheel shaft 2, and the other hole is assembled with the driving dial shaft 3;
the number of the mounting cylindrical pins 4 is one, two or three.
The included angle between the connecting lines of the adjacent two pin holes and the central point of the driving plate 5 is 120 degrees.
Example 3: as shown in fig. 1-7, a method of using an outer sheave mechanism having a plurality of stop-and-go ratios,
a cylindrical pin 4 is arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:3;
two cylindrical pins 4 are arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:1;
three cylindrical pins 4 are installed so that the stop-and-go ratio of the outer sheave mechanism is 3:1.
Example 4: as shown in fig. 1-7, an outer sheave mechanism with a plurality of stop-and-go ratios comprises a sheave 1, a sheave axle 2, a driving dial axle 3, a cylindrical pin 4, a driving dial 5 and a base 6;
the grooved pulley 1 is provided with a radial groove and an inward concave locking arc, the driving plate 5 is provided with an outward convex arc, three pin holes are formed in the driving plate 5 and are used for installing the cylindrical pins 4, the grooved pulley 1 is connected with the pulley shaft 2, the driving plate 5 is connected with the driving plate shaft 3, and the axes of the pulley shaft 2 and the driving plate shaft 3 are parallel; two holes are formed in the base 6, one hole is assembled with the grooved wheel shaft 2, and the other hole is assembled with the driving dial shaft 3;
the number of the mounting cylindrical pins 4 is one, two or three.
While the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (2)
1. An outer sheave mechanism with a plurality of stop-and-go ratios, characterized in that: comprises a sheave (1), a sheave shaft (2), a driving dial shaft (3), a cylindrical pin (4), a driving dial (5) and a base (6);
the grooved pulley (1) is provided with a radial groove and an inward concave locking arc, the driving plate (5) is provided with an outward convex arc, three pin holes are formed in the driving plate (5) and are used for installing the cylindrical pins (4), the grooved pulley (1) is connected with the grooved pulley shaft (2), the driving plate (5) is connected with the driving plate shaft (3), and the axes of the grooved pulley shaft (2) and the driving plate shaft (3) are parallel; two holes are formed in the base (6), one hole is assembled with the grooved pulley shaft (2), and the other hole is assembled with the driving dial shaft (3);
the number of the mounting cylindrical pins (4) is one, two or three;
a cylindrical pin (4) is arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:3;
two cylindrical pins (4) are arranged, so that the motion-stop ratio of the outer sheave mechanism is 1:1;
three cylindrical pins (4) are arranged, so that the motion-stop ratio of the outer sheave mechanism is 3:1.
2. The outer sheave mechanism with multiple stop-and-go ratios of claim 1, wherein: the included angle between the connecting lines of the adjacent two pin holes and the central point of the driving plate (5) is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611109853.4A CN106763606B (en) | 2016-12-06 | 2016-12-06 | Outer sheave mechanism with multiple stop-and-go ratios and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611109853.4A CN106763606B (en) | 2016-12-06 | 2016-12-06 | Outer sheave mechanism with multiple stop-and-go ratios and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106763606A CN106763606A (en) | 2017-05-31 |
| CN106763606B true CN106763606B (en) | 2023-09-26 |
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| CN201611109853.4A Active CN106763606B (en) | 2016-12-06 | 2016-12-06 | Outer sheave mechanism with multiple stop-and-go ratios and use method thereof |
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