TW538203B - Intermittent rotating mechanism for turntable, second case - Google Patents

Abstract

This invention is the second case of an intermittent rotating mechanism for turntable, comprising at least one upper disk movably connected to a base wherein a through hole is provide on the center of the upper disk and sliding slots is provided on a bottom surface, and a drive wheel movably fit in a circular hole pre-formed on a side of the base wherein a pulley is provided on the side of a upper flat surface of the driving wheel and slidably received in the sliding slots and is characterized in that the arc sliding slots of the sliding slots are provided on the surface near the periphery of the through hole while the elongated sliding slots are located at outside the arc sliding slots, so as to prolong the service life of the power transmission mechanism such as small pulley.

Description

538203 V. Description of the invention (i) The present invention is the second case of providing a rotary disc intermittent rotation mechanism, particularly the re-inventor of the rotary disc intermittent rotation mechanism No. 8 9 1 0 5 4 7 2. According to the 8 9 1 0 5 4 7 2 rotary disc intermittent rotation mechanism previously created by the inventor, the main technology is to use a small pulley (3 4) with the axis of the driving wheel (3 0) as the rotation center to make a Rotate, so that the small pulley (3 4) can rotate in the plum-shaped chute (1 4), so as to drive the upper disc (1 0) to intermittently rotate the displacement person. Although the investigation of this case is very practical, there is still room for improvement in the long-term implementation, that is, please refer to Figure 6, the bottom plan view of the upper case of the patent case No. 89 1 05 472, whose small pulley (3 4) is in the plum blossom. When rotating in the chute (1 4), the small pulley (3 4) directly generates a thrust force against the groove wall, and the thrust action area for pushing the turntable to rotate is in the area of the long chute (1 4 3), and the arc slides The groove radian of the groove (1 4 6) is the same as the arc of rotation of the small pulley (3 4), so the small pulley (3 4) does not act on the groove wall of the curved groove (1 4 6), and the small pulley (3 4 ) The arc-shaped chute (1 4 6) is displaced by idling, so the upper plate (10) does not rotate and stops. Therefore, when the small pulley (3 4) slides circularly in the arc-shaped chute (1 4 6) and the long chute (1 4 3), the upper plate (1 0) is driven to intermittently stop and rotate. . The small pulley (3 4) exerts a force to act on the area position of the long chute (1 4 3), and the center point of the small pulley (3 4) and the center point of the perforation (1 2) form a short force arm (R 1), The small pulley (3 4) forms a long arm (R 2) at the arc-shaped chute (1 4 6) t when the distance between the center point of the small pulley and the center point of the perforation (1 2) is idling.

538203 V. Description of the invention (2) However, when the small pulley (3 4) is pushed and acts on the long chute (1 4 3), due to the short relationship between the short arm (R 1), the small pulley (3 4) The force of the application is large, so that the small pulley (3 4) acts on the slot wall of the long chute (1 4 3). On the other hand, the long arm (R2) has a long force arm (R2), but it does not work. (No thrust is applied) On the groove wall of the arc chute (1 4 6), because the short arm (R 1) is shorter, the small pulley (3 4) pushes the turning force (horsepower) of the upper disc (1 0). The larger the friction force of the small pulley (3 4) in the long chute (1 4 3) is increased, and the transmission mechanism such as the small pulley (3 4) is more likely to be damaged under long-term stress. The reason is that the present invention is to provide a rotary disc intermittent rotation mechanism in the second case by designing the long chute and the arc chute of the patent No. 8 9 1 0 5 4 7 2 on the upper plate in the opposite direction. On the bottom surface, the arm of the small pulley acting on the long chute is longer, so that the force of the small pulley on the wall of the long chute can be effectively reduced, and the upper disk can be driven to rotate. Those who increase the service life of the power transmission mechanism. In order to achieve the above-mentioned object, the present invention will be described in detail with reference to the drawings and the effects of the features of the present invention in detail: Attachment: Photo of Patent Bulletin No. 8 9 1 0 5 4 7 2. First, please refer to Figures 1 and 2. The present invention includes: At least one piece of upper plate 10 is connected to a base 20, wherein a hole 12 is provided in the center of the upper plate 10, and a bottom surface is provided. There are chute 1 4 and a driving wheel 3 0 is loosely connected to the circular perforation 2 6 preset on the side of the base 20, wherein a small pulley 3 4 is arranged on the side of the plane above the driving wheel 30.

538203 V. Description of the invention (3), the small pulley 3 4 can be slidably connected to the chute 14, which is characterized in that the curved chute 1 4 6 in the chute 14 is located near the perforation 12 On the surface around the hole, the long chute 1 4 3 is located outside the curved chute 1 4 6. According to the foregoing main features, the peripheral edge of the hole at the perforation 12 forms a continuous and regular curved wall 1 4 1, and a pair of corners are formed between each adjacent curved wall 1 4 1 (1 4 1) 1 4 2, the corresponding surface of the diagonal portion 1 4 2 forms a straight and long long chute 1 4 3, and the bottom wall surface of the long chute 1 4 3 forms a semi-circular arc wall 1 44, among which the arc wall The corresponding groove wall of 1 4 1 forms an elliptical convex body 145. According to the foregoing primary and secondary features, when implemented, it has the following advantageous effects: (1) As shown in Figures 1 and 2, the upper disk 10 of this case is connected to the projection on the base 20 by the bearing 2 4 The technology of the column 22 and the driving wheel 30 connected to the circular perforation 26 by the bearing 32 is the same as the patent case No. 89105472, please refer to Figure 3. This case is different from the patent case No. 89 105472 previously applied by the inventor. The arc chute 1 4 6 of this case is reversely designed on the inside of the inner surface of the upper plate 10, and is close to the peripheral edge of the hole of the perforation 12, while the long chute 1 4 3 is designed on the upper plate 10 Outside the inner surface, the center point of the small pulley 3 4 when sliding on the arc-shaped chute 1 4 6 and the center point of the perforation 1 2 1 2 1 is the short arm R 1, and the small The distance between the center point 3 4 1 and the perforation 1 2 center point 1 2 1 when the pulley 3 4 slides in the straight long chute 1 4 3 is the long arm R 2, and the small pulley 3 4

538203 V. Description of the invention (4) The thrust force acting on the chute 14 is F, and the distance between the center point 30 1 of the driving wheel 30 and the center point 3 4 of the small pulley 3 4 is the rotation distance M. According to the principle of mechanics, the rotation distance M = Short-stroke arm R 1 X thrust F or torque M = long-stroke arm R2x thrust F, then thrust F = torque M / short-stroke arm R 1 or thrust F = torque M / long-stroke arm R2, of which long, The values of the short-force arms R 1 and R 2 change with the rotation position of the small pulley 34. According to the mechanical principle, it can be known that when the small pulley 34 exerts a force on the long groove 1 4 3, the distance of its long-force arm R2 The larger the value (ie, R2 > R1), and the torque M is a fixed value, when the small pulley 34 is actuated in the long chute 1 4 3, the thrust F value is relatively small. In contrast, the short arm R 1 value Smaller, when the small pulley 3 4 slides in the arc chute 1 4 6, the thrust F value is larger, but because the moving system of the small pulley 3 4 in the arc chute 1 4 6 will not produce idling The frictional pushing torque (the upper plate 10 does not rotate), so the F value of this area can be ignored. It is obvious that the long chute 1 4 3 of the present invention is designed on the outside of the inner surface of the upper plate 10, which can make the small pulley 3 4 Push the upper plate 1 0 on the base 20 Move to reduce the force required, so can improve the life of a power transmission structure of small pulley 34 of capstan 30 and the like. (2). As shown in Figure 4, this case can also be implemented on the sockets of the upper floor 10 and 10 'on the second floor. When the power is started, the small pulley 34 can move in the chute 14 to further make the second floor. The upper plates 10, 10 'can be intermittently rotated in the same direction or in the opposite direction. As shown in the fifth figure, the perforation 12 of the upper plate 10 is connected to the central boss 22 of the base 20 by the bearing 24, so that the two upper plates 10 and 10 'can be rotated by the protrusion 22 The shaft does a smooth,

538203 V. Description of the invention (5) Those who rotate intermittently and stop intermittently. In summary, the effect of the features of the present invention has been achieved excellently, and the applicant submitted an application according to law. Part No .: Upper plate 10, perforated ··· 12 chute · · · · 1 4 curved wall · · · 1 4 1 diagonal part · · · 1 4 2 long chute · · · 1 4 3 semicircle Curved wall · 1 4 4 Elliptical convex body · 1 4 5 Curved chute · 1 4 6 Base · · · 2 0 convex post · · · · 2 2 round perforated · · · 2 6 driving wheel · · · 3 0 bearing · · · · 3 2, 2 4 small pulley · · · 3 4 center point · · · 3 4 1, 1 2 1, 3 0 1 short arm · ·, R 1 long arm · · · R 2

Thrust · F · Torque * · · · Μ

538203 Brief description of the drawing The first drawing is a three-dimensional combined drawing of the present invention. The second figure is an exploded perspective view of another part of the present invention. The third figure is a plan view of the small pulley acting on the upper plate chute of the present invention. The fourth figure is a bottom plan view of the present invention which is sleeved by a two-layer upper disk. The fifth figure is a perspective view of an embodiment of the present invention as a processing table. The sixth figure is a bottom plan view of the upper plate of the case No. 8 9 1 0 5 4 7 2.

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Claims (1)

538203 VI. Scope of patent application1. The second case of a rotary disc intermittent rotation mechanism includes: at least one upper disc is connected to a base, wherein the upper disc is provided with a perforation in the center and the bottom surface is provided with a chute. ; A driving gear is looped into a round perforation preset on the side of the base, wherein a small pulley is provided on the side of the plane above the driving pulley, and the small pulley can be slid in the chute. The arc-shaped chute in the groove is provided on the surface near the periphery of the hole of the perforation, and the long chute is located outside the Tibetan-shaped chute. 2 · According to the rotary disc intermittent rotation mechanism described in item 1 of the scope of patent application In the second case, continuous edges and regular curved walls are formed on the peripheral edge of the perforated hole. Each adjacent curved wall forms a pair of corners, and the corresponding surfaces of the diagonals form a straight and long strip. Long chute, the bottom wall surface of the long chute forms a semi-circular arc wall, and the corresponding groove wall of the arc wall forms an elliptical convex body. Page 10