CN210495172U

CN210495172U - Variable speed transmission mechanism of mahjong machine shuffling turntable

Info

Publication number: CN210495172U
Application number: CN201921324640.2U
Authority: CN
Inventors: 陈铁夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-12
Anticipated expiration: 2029-08-15

Abstract

A variable speed transmission mechanism of a shuffling rotary disc of a mahjong machine solves the problems that the shuffling rotary disc in the prior art always rotates at a slow speed, the card arranging speed can be obviously slowed down at the later stage of shuffling, and if the shuffling rotary disc is always maintained at a fast rotating speed, the card sucking speed is influenced, and great shuffling noise can be generated. Including the drive pivot that links to each other with carousel drive motor output, its characterized in that: a reverse ratchet wheel and a forward ratchet wheel are sequentially arranged on the driving rotating shaft, a quick transmission gear is arranged at the position of the reverse ratchet wheel on the driving rotating shaft, and a slow transmission gear is arranged at the position of the forward ratchet wheel on the driving rotating shaft; the slow transmission gear is meshed with a turntable driving gear arranged on the shuffling rotating disc; the quick transmission gear is meshed with the reversing transmission gear, and the reversing transmission gear is also meshed with the turntable driving gear. The automatic card shuffling turntable has the advantages of reasonable design, compact structure, capability of effectively improving the card arranging efficiency of the card shuffling turntable, low card shuffling noise, low operation failure rate and convenience in maintenance.

Description

Variable speed transmission mechanism of mahjong machine shuffling turntable

Technical Field

The utility model belongs to the technical field of automatic mahjong machine, concretely relates to compact structure can effectively promote the reason tablet efficiency of shuffling the carousel, and the noise of shuffling is little, and the operation fault rate is low, maintains convenient mahjong machine and shuffles variable speed drive mechanism of carousel.

Background

The shuffling turntable inside the automatic mahjong machine is one of the important parts of mahjong machine. The shuffling rotary disc drives a gear on an output shaft to rotate through a driving motor so as to drive the shuffling rotary disc with internal teeth (or external teeth) to rotate; the mahjong tiles in the shuffling cavity rotate along with the shuffling rotary disc, and simultaneously, the magnets below the shuffling rotary disc are utilized to turn over the mahjong tiles internally provided with the magnets according to the magnetic pole polarity and with the character faces upward, and then the turned mahjong tiles are randomly conveyed into the mahjong conveying mechanism through the mahjong sucking rotary wheel; and then, the stacked mahjong tiles are lifted to the table top of the mahjong machine by using a tile lifting mechanism.

However, the shuffling rotary disc of the prior full-automatic mahjong machine always rotates at a speed, and when all mahjong tiles are thrown on the shuffling rotary disc of the shuffling cavity in the initial shuffling stage, the rotation speed of the shuffling rotary disc cannot be too high due to the crowding of the mahjong tiles; however, the slow rotation of the shuffling rotary disc can obviously slow down the whole card arranging speed along with the reduction of the card sucking probability after half of the mahjong cards on the shuffling rotary disc are sucked by the card sucking rotary wheel in the later stage of card shuffling. In addition, if the shuffling rotary table is always kept at a faster rotating speed, because the cards are crowded and the front and the back are disordered at the early shuffling stage, the shuffling rotary table rotating fast not only seriously influences the card sucking speed of the card sucking rotary wheel, but also generates larger shuffling noise and has poor use effect. Therefore, the transmission mechanism of the shuffling rotary disc of the existing full-automatic mahjong machine needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problems, and provides a speed change transmission mechanism of mahjong shuffling rotary disc, which has compact structure, can effectively improve the mahjong arranging efficiency of shuffling rotary disc, has small mahjong shuffling noise, low operation failure rate and convenient maintenance.

The utility model adopts the technical proposal that: this variable speed drive mechanism of mahjong machine shuffling carousel includes the drive pivot that links to each other with the carousel driving motor output, its characterized in that: a reverse ratchet wheel and a forward ratchet wheel are sequentially arranged on the driving rotating shaft, a quick transmission gear is arranged at the position of the reverse ratchet wheel on the driving rotating shaft, and a slow transmission gear is arranged at the position of the forward ratchet wheel on the driving rotating shaft; the slow transmission gear is meshed with a turntable driving gear arranged on the shuffling rotating disc; the quick transmission gear is meshed with the reversing transmission gear, and the reversing transmission gear is also meshed with a turntable driving gear on the shuffling rotation disc.

The slow transmission gear is composed of a slow gear wheel body, a slow forward rotation inner bushing is fixedly arranged in a cavity in the middle of the slow gear wheel body, a plurality of forward rotation clamping jaw recovery grooves which are uniformly distributed along the circumference are formed in the inner side of the slow forward rotation inner bushing, and slow forward rotation clamping jaws are rotatably arranged in the forward rotation clamping jaw recovery grooves respectively; the slow-speed gear wheel body is sleeved outside the forward ratchet wheel through a slow-speed forward rotation inner bushing inside the slow-speed gear wheel body, and the slow-speed forward rotation clamping jaws on the slow-speed forward rotation inner bushing are respectively contacted with the ratchet tooth surface of the forward ratchet wheel. The forward ratchet wheel rotates along with the forward direction of the driving rotating shaft to drive the slow forward rotation clamping jaw to drive the slow transmission gear to rotate forward, and the shuffling rotating disc rotates slowly through the meshing transmission with the rotating disc driving gear; and when the forward ratchet wheel rotates reversely, each slow forward rotation claw is pushed into a corresponding forward rotation claw recovery groove on the slow forward rotation inner sleeve by utilizing the ratchet tooth back of the forward ratchet wheel, so that the rotation of the slow transmission gear is stopped.

And the slow forward rotation claws in the recovery grooves of the slow forward rotation claws of the low forward rotation inner bushing are respectively provided with claw return springs. So as to be beneficial to the reciprocating extension and retraction of the slow forward rotation claw in the forward rotation claw recovery groove in the process that the forward ratchet wheel rotates forward and backward along with the driving rotating shaft.

The quick transmission gear is composed of a quick gear wheel body, a quick reverse inner bushing is fixedly arranged in a cavity in the middle of the quick gear wheel body, a plurality of reverse jaw recovery grooves which are uniformly distributed along the circumference are formed in the inner side of the quick reverse inner bushing, and quick reverse jaws are respectively and rotatably arranged in each reverse jaw recovery groove; the quick gear wheel body is sleeved outside the reverse ratchet wheel through a quick reverse inner bushing in the quick gear wheel body, and quick reverse claws on the quick reverse inner bushing are respectively contacted with the tooth surfaces of the ratchets of the reverse ratchet wheel. The reverse ratchet wheel is utilized to rotate along with the reverse direction of the driving rotating shaft to drive the quick reverse rotation claw to drive the quick transmission gear to rotate reversely, and the shuffling rotating disc rotates quickly in the original direction through the meshing transmission of the reversing transmission gear meshed with the quick transmission gear and the rotating disc driving gear; and when the reverse ratchet wheel rotates in the forward direction, each quick reverse rotation claw is pushed into the corresponding reverse rotation claw recovery groove of the quick reverse rotation inner sleeve by utilizing the ratchet tooth back of the reverse ratchet wheel, so that the rotation of the quick transmission gear is stopped.

And claw reset springs are respectively arranged on the quick reverse claws in the reverse claw recovery grooves of the quick reverse inner bushing. So as to be beneficial to the reciprocating extension and retraction of the quick reverse pawl claw in the reverse pawl claw recovery groove in the process that the reverse ratchet wheel rotates along with the driving rotating shaft in the reverse direction and the forward direction.

And sealing end covers are detachably arranged at the middle parts of the axial outer ends of the slow transmission gear and the fast transmission gear respectively. The sealing performance of the joint between the driving rotating shaft and each transmission gear is improved, the operation reliability is further improved, the service life is prolonged, and the maintenance is facilitated.

The utility model has the advantages that: because the utility model adopts the driving rotating shaft connected with the output end of the turntable driving motor, the driving rotating shaft is sequentially provided with the reverse ratchet wheel and the forward ratchet wheel, the position of the reverse ratchet wheel on the driving rotating shaft is provided with the fast transmission gear, and the position of the forward ratchet wheel on the driving rotating shaft is provided with the slow transmission gear; the slow transmission gear is meshed with a turntable driving gear arranged on the shuffling rotating disc; the fast transmission gear is meshed with the reversing transmission gear, and the reversing transmission gear is also meshed with the turntable driving gear, so that the structure is reasonable in design and compact in structure, the slow transmission gear is driven to rotate in the forward direction by utilizing the forward ratchet wheel to rotate in the forward direction along with the forward rotation of the driving rotating shaft, and the shuffling rotating disc is driven to rotate slowly by meshing transmission with the turntable driving gear; the reverse ratchet wheel rotates reversely along with the driving rotating shaft to drive the quick transmission gear to rotate reversely, and the reverse transmission gear meshed with the quick transmission gear is meshed with the rotating disc driving gear to drive the shuffling rotating disc to rotate quickly in the original direction. Therefore, the card arranging efficiency of the shuffling rotary disc is effectively improved, the shuffling noise is reduced, the operation failure rate is reduced, and the card shuffling rotary disc is convenient to maintain.

Drawings

Fig. 1 is a schematic view of a usage state of the present invention.

Fig. 2 is a view in the direction a of fig. 1.

Fig. 3 is a schematic view of a construction of the variable speed drive mechanism of fig. 2.

Fig. 4 is a view from direction B of fig. 3.

Fig. 5 is a schematic view showing a coupling structure of the driving shaft, the forward ratchet and the reverse ratchet of fig. 4.

Fig. 6 is a schematic view of a construction of the slow transmission gear of fig. 4.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a schematic view of a construction of the quick drive gear of fig. 4.

Fig. 9 is a top view of fig. 8.

The sequence numbers in the figures illustrate: the automatic card shuffling device comprises a card shuffling rotating disc 1, a rotating disc driving motor 2, a conical inclined plane 3, a mounting shaft hole 4, a rotating disc driving gear 5, a supporting connecting plate 6, a variable speed transmission mechanism 7, a driving rotating shaft 8, a slow speed transmission gear 9, a fast transmission gear 10, a reverse ratchet wheel 11, a reverse transmission gear 12, a forward ratchet wheel 13, a slow speed gear wheel body 14, a slow speed forward rotation inner bushing 15, a forward rotation claw recovery groove 16, a slow speed forward rotation claw 17, a sealing end cover 18, a claw reset spring 19, a fast gear wheel body 20, a fast reverse rotation inner bushing 21, a reverse rotation claw recovery groove 22 and a fast reverse rotation claw 23.

Detailed Description

The specific structure of the present invention is described in detail with reference to fig. 1 to 9. The variable-speed transmission mechanism of the mahjong shuffling rotary table of the mahjong machine comprises a driving rotary shaft 8 connected with the output end of a rotary table driving motor 2, wherein a reverse ratchet wheel 11 and a forward ratchet wheel 13 are sequentially arranged on the driving rotary shaft 8. A slow transmission gear 9 is arranged at the position of a forward ratchet wheel 13 on the driving rotating shaft 8, the slow transmission gear 9 is composed of a slow gear wheel body 14, and a slow forward rotation inner bushing 15 is fixedly arranged in a circular cavity in the middle of the slow gear wheel body 14; the inner side of the slow forward rotation inner bushing 15 is provided with a plurality of forward rotation jack catch recycling grooves 16 which are uniformly distributed along the circumference, and each forward rotation jack catch recycling groove 16 is internally and respectively provided with a slow forward rotation jack catch 17 in a rotating way. In order to facilitate the reciprocating extension and retraction of the slow forward rotation claw 17 in the forward rotation claw recovery groove 16 in the process that the forward ratchet wheel 13 rotates forwards and backwards along with the driving rotating shaft 8, claw return springs 19 are respectively arranged between the middle part of the slow forward rotation claw 17 and the inner part of the corresponding forward rotation claw recovery groove 16 of the slow forward rotation inner bushing 15.

The slow gear wheel body 14 of the slow transmission gear 9 is sleeved outside the forward ratchet wheel 13 on the driving rotating shaft 8 through the slow forward rotation inner bushing 15 inside the slow transmission gear 9, and the slow forward rotation claws 17 on the slow forward rotation inner bushing 15 are respectively contacted with the ratchet tooth surface of the forward ratchet wheel 13. Meanwhile, the slow transmission gear 9 is meshed with a turntable driving gear 5 (an internal gear or an external gear) arranged at the lower side of the shuffling rotating disk 1; the middle part of the shuffling rotating disc 1 is provided with an installation shaft hole 4, and the upper side of the shuffling rotating disc 1 is provided with a conical inclined plane 3 which is convenient for mahjong tiles to be uniformly distributed and fall in the shuffling process. The forward ratchet wheel 13 is further utilized to rotate along with the forward direction of the driving rotating shaft 8 to drive the slow forward rotation claw 17 to drive the slow transmission gear 9 to rotate forward, so that the shuffling rotating disc 1 rotates slowly through the meshing transmission with the rotating disc driving gear 5; when the forward ratchet 13 rotates in the reverse direction (at this time, the reverse ratchet 11 drives the fast transmission gear 10 to rotate), the ratchet teeth back of the forward ratchet 13 pushes each slow forward rotation pawl 17 into the corresponding forward rotation pawl recovery groove 16 of the slow forward rotation inner liner 15, thereby stopping the rotation of the slow transmission gear 9.

A fast transmission gear 10 is arranged below the slow transmission gear 9 and at the position of a reverse ratchet wheel 11 on the driving rotating shaft 8. The quick transmission gear 10 is composed of a quick gear wheel body 20, a quick reverse inner bushing 21 is fixedly arranged in a circular cavity in the middle of the quick gear wheel body 20, and a plurality of reverse claw recovery grooves 22 which are uniformly distributed along the circumference are arranged on the inner side of the quick reverse inner bushing 21; in each reverse rotation claw recovery groove 22, a quick reverse rotation claw 23 is rotatably provided. The middle part of the rapid reverse rotation claw 23 and the inner part of the corresponding reverse rotation claw recovery groove 22 of the rapid reverse rotation inner bushing 21 are respectively provided with a claw return spring 19; and further facilitates the reciprocating extension and retraction of the quick reverse pawl 23 in the reverse pawl recovery groove 22 during the reverse and forward rotation of the reverse ratchet wheel 11 along with the driving rotating shaft 8. For the purpose of improving the sealing performance of the joint between the driving rotating shaft 8 and each transmission gear, the middle parts of the axial outer ends of the slow transmission gear 9 and the fast transmission gear 10 are respectively detachably provided with a sealing end cover 18, so that the operation reliability is improved, the service life is prolonged, and the maintenance of the mechanism is facilitated.

The fast gear wheel body 20 of the fast transmission gear 10 is sleeved outside the reverse ratchet wheel 11 through the fast reverse inner bushing 21 inside, and meanwhile, the fast reverse claws 23 on the fast reverse inner bushing 21 are respectively contacted with the ratchet tooth surfaces of the reverse ratchet wheel 11. The quick drive gear 10 is engaged with the reverse drive gear 12, and the reverse drive gear 12 is also engaged with the turntable drive gear 5 on the lower side of the shuffling rotary disk 1. The gear shaft of the reversing transmission gear 12, and the driving rotating shaft 8 of the slow transmission gear 9 and the fast transmission gear 10 are connected with the machine body of the mahjong machine through the supporting connection plate 6. Therefore, the reverse ratchet wheel 11 rotates reversely along with the driving rotating shaft 8 to drive the quick reverse pawl 23 to drive the quick transmission gear 10 to rotate reversely, so that the shuffling rotating disk 1 rotates quickly in the original direction (without changing the rotating direction during the previous slow rotation) through the meshing transmission of the reversing transmission gear 12 meshed with the quick transmission gear 10 and the turntable driving gear 5. When the reverse ratchet 11 is rotated in the forward direction (at this time, the slow transmission gear 9 is rotated by the forward ratchet 13), the respective reverse rotation claws 23 are pushed into the corresponding reverse rotation claw recovery grooves 22 of the reverse rotation inner bush 21 by the ratchet tooth backs of the reverse ratchet 11, and the rotation of the quick transmission gear 10 is stopped.

It can be understood that, in order to facilitate the effective transmission between the reversing transmission gear 12 and the turntable driving gear 5, the axial tooth width of the reversing transmission gear 12 is not less than the sum of the axial tooth widths of the fast transmission gear 10 and the slow transmission gear 9; the number of teeth and the module of the slow drive gear 9 and the reverse drive gear 12 may be the same. Meanwhile, the gear ratio of the fast transmission gear 10 and the slow transmission gear 9 can be flexibly changed to adapt to the specific rotating speed requirement of the shuffling rotating disk 1.

When the variable speed transmission mechanism of the shuffling rotary disc of the mahjong machine is used, firstly, the shuffling rotary disc 1 is arranged on a middle rotating shaft of a shuffling cavity of the full-automatic mahjong machine through the installation shaft hole 4, and the rotary disc driving gear 5 at the lower side of the shuffling rotary disc 1 is respectively meshed with the slow speed transmission gear 9 and the reversing transmission gear 12 of the variable speed transmission mechanism 7 arranged on the support connecting plate 6. Then, the turntable driving motor 2 connected to the driving shaft 8 is started, and the turntable driving motor 2 is rotated in the forward direction, and thereafter, the mahjong pieces to be shuffled are thrown in. And a forward ratchet wheel 13 which rotates forward along with the driving rotating shaft 8 drives a slow transmission gear 9 to rotate forward, so that the shuffling rotating disc 1 rotates slowly through the meshing transmission with the rotating disc driving gear 5, and when all the mahjong tiles are thrown onto the shuffling rotating disc 1 of the shuffling cavity at the initial shuffling stage, the mahjong tiles are favorably sucked away one by the mahjong tile sucking rotating wheel under the conditions of crowded mahjong tiles and disordered front and back sides, and the noise in the shuffling process is effectively reduced. In the later shuffling stage, after a majority of mahjong tiles on the shuffling rotating disc 1 are sucked away by the tile sucking rotating wheel, the rotating disc driving motor 2 is controlled to rotate reversely, so that a reverse ratchet wheel 11 rotating reversely along with the driving rotating shaft 8 is utilized to drive a quick transmission gear 10 to rotate reversely, and the shuffling rotating disc 1 rotates fast in the original direction through the meshing transmission of a reversing transmission gear 12 meshed with the quick transmission gear 10 and the rotating disc driving gear 5, so that the tile sucking probability is ensured, and the integral speed of tile sorting is improved.

Claims

1. The utility model provides a variable speed drive of mahjong machine shuffling carousel constructs, includes drive pivot (8) that link to each other with carousel driving motor (2) output, its characterized in that: a reverse ratchet wheel (11) and a forward ratchet wheel (13) are sequentially arranged on the driving rotating shaft (8), a quick transmission gear (10) is arranged at the position of the reverse ratchet wheel (11) on the driving rotating shaft (8), and a slow transmission gear (9) is arranged at the position of the forward ratchet wheel (13) on the driving rotating shaft (8); the slow transmission gear (9) is meshed with a turntable driving gear (5) arranged on the shuffling rotating disc (1); the quick transmission gear (10) is meshed with the reversing transmission gear (12), and the reversing transmission gear (12) is also meshed with a turntable driving gear (5) on the shuffling rotating disk (1).

2. The variable speed transmission mechanism of the mahjong shuffling rotary table of claim 1, wherein: the slow transmission gear (9) is composed of a slow gear wheel body (14), a slow forward rotation inner bushing (15) is fixedly arranged in a cavity in the middle of the slow gear wheel body (14), a plurality of forward rotation clamping jaw recovery grooves (16) which are uniformly distributed along the circumference are formed in the inner side of the slow forward rotation inner bushing (15), and slow forward rotation clamping jaws (17) are respectively and rotatably arranged in the forward rotation clamping jaw recovery grooves (16); the slow-speed gear wheel body (14) is sleeved outside the forward ratchet wheel (13) through a slow-speed forward rotation inner bushing (15) in the slow-speed gear wheel body, and slow-speed forward rotation clamping claws (17) on the slow-speed forward rotation inner bushing (15) are respectively contacted with ratchet tooth surfaces of the forward ratchet wheel (13).

3. The variable speed transmission mechanism of the shuffling rotary disk of the mahjong machine as claimed in claim 2, characterized in that: and the slow forward rotation claws (17) in the forward rotation claw recovery grooves (16) of the slow forward rotation inner bushing (15) are respectively provided with claw return springs (19).

4. The variable speed transmission mechanism of the mahjong shuffling rotary table of claim 1, wherein: the quick transmission gear (10) is composed of a quick gear wheel body (20), a quick reverse inner bushing (21) is fixedly arranged in a cavity in the middle of the quick gear wheel body (20), a plurality of reverse claw recovery grooves (22) which are uniformly distributed along the circumference are arranged on the inner side of the quick reverse inner bushing (21), and quick reverse claws (23) are respectively and rotatably arranged in each reverse claw recovery groove (22); the rapid gear wheel body (20) is sleeved outside the reverse ratchet wheel (11) through a rapid reverse inner bushing (21) inside the rapid gear wheel body, and rapid reverse claws (23) on the rapid reverse inner bushing (21) are respectively contacted with the ratchet tooth surface of the reverse ratchet wheel (11).

5. The variable speed transmission mechanism of the mahjong shuffling rotary table of claim 4, wherein: and claw reset springs (19) are respectively arranged on the quick reverse rotation claws (23) in the reverse rotation claw recovery grooves (22) of the quick reverse rotation inner bushing (21).

6. The variable speed transmission mechanism of the mahjong shuffling rotary table of claim 1, wherein: and sealing end covers (18) are detachably arranged at the middle parts of the axial outer ends of the slow transmission gear (9) and the fast transmission gear (10) respectively.