CN112190917B - Shuffling device of mahjong machine - Google Patents

Abstract

The invention discloses a mahjong machine shuffling device, which comprises a shuffling large tray and a central shaft seat arranged in the center of the shuffling large tray, wherein the shuffling large tray is rotationally connected with the central shaft seat, and a poker device positioned above the shuffling large tray is rotationally connected on the central shaft seat; a planetary gear reducer for realizing transmission between the shuffling large disc and the card pulling device is arranged on the central shaft seat and is circumferentially positioned with the central shaft seat. The invention integrally sets the shuffling large disc, and sequentially sets the planetary gear reducer and the card pulling device on the top surface of the shuffling large disc, so that enough installation space is reserved for the planetary gear reducer, and the planetary gear reducer can be prevented from wearing the planetary gear reducer due to the operation of the shuffling large disc and the card pulling device; the planetary gear reducer can be ensured to be always kept stable in position, and stable and effective transmission between the shuffling large disc and the card puller is ensured.

Description

Shuffling device of mahjong machine

Technical Field

The invention belongs to the technical field of mahjong machines, and particularly relates to a mahjong machine shuffling device.

Background

The mahjong machine shuffling device generally comprises a shuffling tray, a bearing seat is rotationally connected at the center of the shuffling tray, the bottom end of the bearing seat is fixedly connected with a bottom plate of the mahjong machine, and a poker machine is arranged at the top end of the bearing seat and provided with a plurality of poker bars extending on the top surface of the shuffling tray.

In the traditional mahjong machine, under the drive of shuffling motor, the big disk of shuffling will take place circumference rotation for the bearing frame, and the position of dialling tablet ware and dialling the strip remains unchanged, then in the big disk rotation process of shuffling, dialling the strip and dialling the mahjong pieces on the big disk of shuffling.

The mahjong machine has the following defects: because the position of the dealing strip is kept unchanged in the rotation process of the shuffling large disc, the phenomena of 'dead angle for dealing' and the phenomenon that mahjong pieces are clamped between the dealing strip and the shuffling large disc often occur at the position of the dealing strip, and the shuffling process is influenced; when the shuffling large disc rotates, the shuffling large disc and the playing pieces have larger differential speed, and when the mahjong tiles are more, the mahjong tiles can continuously strike the playing pieces, so that shuffling noise is larger.

In order to solve the problems, the Chinese patent application with the publication number of CN108031108A discloses a batch shuffling device of a mahjong machine and a shuffling method thereof, wherein the batch shuffling device comprises a large disc and a large disc shaft seat arranged in the center of the large disc, the large disc is rotationally connected with the large disc shaft seat, a playing strip is attached to the upper surface of the large disc, and a clutch device for controlling the large disc and the playing strip to synchronously rotate and relatively rotate is arranged between the playing strip and the large disc shaft seat.

The card shuffling device has the following defects: the rotating speed of the shuffling large disc is kept unchanged, and the shifting bar is controlled by the clutch only to obtain different rotating states relative to the shuffling large disc, wherein the change of the rotating state of the shifting bar depends on the clutch, and the abrasion of parts is unavoidable; when the card poking strip and the large shuffling tray synchronously rotate under friction force, larger abrasion is caused to the large shuffling tray.

On the basis, the Chinese patent application with publication number of CN110237525A discloses a rotary tile-poking bar big disc mechanism and a mute mahjong machine, wherein the rotary tile-poking bar big disc mechanism comprises a lower big disc in a horizontal state and an upper big disc in an umbrella shape, and the lower big disc is arranged on a lower bearing seat through a lower bearing; the card pulling device is arranged on the upper bearing seat through an upper bearing, the edge of the upper large disc is fixedly arranged on the lower large disc, and the center of the card pulling device is positioned at the periphery of the upper bearing; the planetary carrier is fixedly arranged at the connecting position of the upper bearing seat and the lower bearing seat, the planetary carrier is rotationally connected with a planetary gear set, the card pulling device is provided with a large central wheel meshed with the planetary gear set, and the lower large disc is also provided with a sun wheel meshed with the planetary gear set.

When the motor drives the lower big disc to rotate, the sun wheel and the planetary gear set are sequentially driven, so that the power of the lower big disc is distributed to the card pulling device in a speed reducing way, and the card pulling device rotates relatively to the lower big disc.

The rotary card pulling strip large disc mechanism has the following defects: the shuffling large disc is divided into a lower large disc and an upper large disc, and a planet carrier and a planet wheel set are arranged in a gap between the lower large disc and the upper large disc; the space between the upper large disc and the lower large disc is low due to the limitation of the volume of the large disc and the gradient of the upper large disc, so that enough space is reserved for the upper bearing seat and the lower bearing seat, the planet carrier is only arranged into a thin flat plate shape, and the planet carrier is clamped by the upper bearing seat and the lower bearing seat so as to realize circumferential positioning of the planet carrier; when the card poking device rotates relatively to the card shuffling large disc, the planet carrier clamped between the upper bearing seat and the lower bearing seat bears friction from the upper bearing and the lower bearing in the whole card shuffling process, so that the service life of the planet carrier is influenced, the thickness of the planet carrier is further thinned due to long-term friction, the planet carrier is difficult to maintain circumferential positioning, and finally the transmission of the planet wheel set is invalid; meanwhile, as the stress area between the planet carrier and the upper bearing seat and the stress area between the planet carrier and the lower bearing seat are small, the supporting effect of the planet carrier on the planet wheel set is still insufficient, and the planet wheel set can be ensured to stably run only by arranging supporting rollers on the outer periphery of the planet carrier.

Disclosure of Invention

The invention aims to provide a mahjong machine shuffling device, wherein a planetary gear reducer in the shuffling device can always keep stable position, and stable and effective transmission between a shuffling large tray and a poker machine is ensured.

In order to achieve the above object, the present invention has the following technical scheme:

the shuffling device of the mahjong machine comprises a shuffling large disc and a central shaft seat arranged in the center of the shuffling large disc, wherein the shuffling large disc is rotationally connected with the central shaft seat, and a poker device positioned above the shuffling large disc is rotationally connected with the central shaft seat; and a planetary gear reducer for realizing transmission between the shuffling large disc and the card pulling device is arranged on the central shaft seat, and the planetary gear reducer and the central shaft seat are circumferentially positioned.

In the invention, the shuffling large disc is integrally arranged, the shuffling large disc is not separately arranged as a lower large disc and an upper large disc, and the planetary gear reducer and the card pulling device are sequentially arranged on the top surface of the shuffling large disc, so that enough installation space is reserved for the planetary gear reducer, the planetary gear reducer can be directly installed on a central shaft seat, and the abrasion of the planetary gear reducer caused by the operation of the shuffling large disc and the card pulling device is avoided or is negligible; meanwhile, as the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable positions, and stable and effective transmission between the shuffling large disc and the card pulling device is ensured.

In the mahjong machine shuffling device, a mahjong poking shaft seat part, a positioning seat part and a shuffling shaft seat part are formed on the central shaft seat from the top to the bottom, wherein the mahjong poking shaft seat part is used for installing a mahjong machine shuffling large disc, and the positioning seat part is used for installing a planetary gear reducer;

a first-stage speed reduction transmission pair is arranged between the planetary gear reducer and the shuffling large disc, and a second-stage speed reduction transmission pair is arranged between the planetary gear reducer and the shuffling device.

The invention adopts the primary speed reduction transmission pair and the secondary speed reduction transmission pair, and the power of the shuffling large tray is transmitted to the card shifter through the secondary speed reduction, thereby realizing the differential transmission of the card shifter relative to the shuffling large tray. Of course, multiple reduction drives may be designed according to specific needs.

In the mahjong machine shuffling device, the planetary gear reducer comprises a planetary carrier which is positioned circumferentially with the central shaft seat and is limited axially, the primary speed reduction transmission pair comprises a primary speed reduction planetary gear which is connected to the planetary carrier in a rotating way, and a power input gear which is driven to rotate by a shuffling large disc and is meshed with the primary speed reduction planetary gear;

the secondary speed reduction transmission pair comprises a secondary speed reduction transmission gear which is rotationally connected to the planet carrier and a power output gear which is fixedly arranged on the card shifter, wherein the secondary speed reduction transmission gear is meshed with the power output gear, and the secondary speed reduction transmission gear and the primary speed reduction transmission gear are coaxially arranged.

Only when the planet carrier is positioned circumferentially, the power generated by the rotation of the power input gear can be transmitted to the primary reduction planetary gear.

In the mahjong shuffling device of the mahjong machine, the planet carrier comprises a planet carrier body with a second central hole, a convex part or a concave area is formed on the inner peripheral wall of the second central hole, and a concave area or a convex part matched with the positioning seat is formed on the outer peripheral wall of the positioning seat. When the planet carrier is mounted on the positioning seat, the convex parts are embedded into the corresponding concave areas, so that the circumferential positioning of the planet carrier is formed.

In the mahjong shuffling device of the mahjong machine, the two ends of the planet carrier body are provided with the outward turned edges, and a planet wheel installation space for installing the primary reduction planet gear and the secondary reduction planet gear is formed between the two outward turned edges. Planet wheel installation space is set up between two outward flanges, then two outward flanges can fix a position the both ends of the center pin of one-level reduction planetary gear and second grade reduction planetary gear, and one-level reduction planetary gear and second grade reduction planetary gear operation is more stable.

In the shuffling device of the mahjong machine, the shuffling large disc and the poker machine are in the same rotation direction. The same direction rotation can greatly reduce the shuffling noise of the shuffling device.

When the card poking device and the shuffling large disc rotate in the same direction, the power input gear and the power output gear are both external gears or are both internal gears; when the two gears are external gears, the primary reduction planetary gear and the secondary reduction planetary gear are both positioned at the inner rings of the power input gear and the power output gear; in order to ensure that the primary reduction planetary gear is meshed with the power input gear and the secondary reduction planetary gear is meshed with the power output gear, a third central hole communicated with the second central hole is formed in the center of the planet carrier body, and a first through hole used for communicating the third central hole with a planet wheel installation space so that the primary reduction planetary gear is meshed with the power input gear is formed in the planet carrier body;

the top surface of the planet carrier body is also concavely provided with an annular avoidance groove for accommodating the power output gear, and the planet carrier body is also provided with a second through hole which is communicated with the annular avoidance groove and the planet wheel installation space so that the secondary reduction planet gear is meshed with the power output gear;

the card poking device comprises a card poking seat, wherein a plurality of card poking strips extending towards the edge of the card shuffling large disc are arranged on the periphery of the card poking seat, and the number of the card poking strips is less than or equal to four.

When the power input gear and the power output gear are both internal gears, a third center hole, a first through hole, an annular avoidance groove and a second through hole are not required to be additionally arranged on the planet carrier.

Meanwhile, in order to further reduce shuffling noise, the number of card-pulling bars can be reduced to be less than or equal to four.

In addition, in the shuffling device of the mahjong machine, the rotation directions of the shuffling large tray and the card poking device can be opposite, so that the shuffling speed can be further increased, and the shuffling efficiency is improved.

When the rotation directions of the card pulling device and the shuffling large disc are opposite, one of the card pulling device and the shuffling large disc is an inner gear, and the other is an outer gear; when the shuffling large disc is an external gear, a third central hole communicated with the second central hole is formed in the center of the planet carrier body, and a first through hole used for communicating the third central hole with a planet wheel installation space so that the first-stage reduction planet gear is meshed with the power input gear is formed in the planet carrier body;

when the playing card pulling device is an external gear, the top surface of the planet carrier body is concavely provided with an annular avoidance groove for accommodating the power output gear, and the planet carrier body is also provided with a second through hole which is communicated with the annular avoidance groove and the planet gear installation space so that the secondary reduction planet gear is meshed with the power output gear.

In order to further improve the shuffling efficiency, the number of the playing cards can be increased to be equal to or greater than four.

In the shuffling device of the mahjong machine, the shuffling large disc comprises a conical part at the center and a flat plate part at the outer ring, and the conical part and the flat plate part are integrally formed;

the shuffling large disc is provided with a first central hole which is convenient for installing a central shaft seat, and the power input gear is positioned at the outer edge of the opening of the first central hole;

the planet carrier comprises a planet carrier body with a second central hole, at least two protruding parts are uniformly arranged on the inner peripheral wall of the second central hole, and a concave area matched with the outer peripheral wall of the positioning seat part is formed on the outer peripheral wall of the positioning seat part;

each protruding part comprises a radial boss, and one end of the radial boss facing the axis of the second central hole is provided with a plurality of radial positioning clamping teeth; each concave area comprises a radial groove matched with the radial boss and a radial positioning clamping groove matched with the radial positioning clamping tooth; the bottom surfaces of the radial groove and the radial positioning clamping groove form a limiting step, the central shaft seat is provided with an external thread seat part positioned between the playing card shaft seat part and the positioning seat part, the external thread seat part is fixedly connected with a locking seat positioned on the top surface of the planet carrier, and the locking seat is used for driving the planet carrier to tightly abut against the limiting step;

the card pulling device comprises an umbrella-shaped card pulling seat, a fifth central hole which is convenient for installing a central shaft seat is formed in the center of the card pulling seat, and the power output gear is fixedly arranged on the bottom surface of the card pulling seat and is positioned at the outer edge of the opening of the fifth central hole; the edge of the flaring end of the umbrella-shaped card poking seat is provided with a plurality of card poking strips;

the shuffling large disc is driven to rotate by a variable speed driving mechanism, the variable speed driving mechanism comprises two transmission gears which are fixedly connected with the bottom surface of the shuffling large disc and are concentrically arranged, and driving gears which are in one-to-one correspondence with the transmission gears, and different driving gears and transmission gear combinations have different speed ratios; the gear rings of the two transmission gears are arranged in opposite directions, the two driving gears are driven by the same shuffling motor, and each driving gear is in unidirectional transmission with the shuffling motor.

The invention adopts the variable speed driving mechanism to drive the large shuffling tray to rotate, and the large shuffling tray rotates slowly in the early shuffling stage to reduce shuffling noise, and rotates rapidly in the later shuffling stage to improve shuffling efficiency. In this way, in the shuffling device, the change of shuffling speed is realized by the shuffling large disc alone, and the card pulling device only needs to realize differential transmission with the shuffling large disc, so that the function of the card pulling device is simplified.

Although the transmission ratio of the shuffling large disc to the card shifter is fixed, when the rotation speed of the shuffling large disc is changed, the rotation speed difference between the card shifter and the shuffling large disc is also changed synchronously, namely: when the shuffling large tray rotates at a low speed, the rotating speed difference between the shuffling device and the shuffling large tray is small, so that the shuffling device can timely poke mahjong tiles piled on the top surface of the shuffling large tray while ensuring low shuffling noise; when the shuffling large tray rotates rapidly, the rotation speed difference between the shuffling device and the shuffling large tray becomes large, which is suitable for the situation that only a small amount of mahjong tiles are remained on the shuffling large tray without high-frequency playing.

Compared with the prior art, the invention has the beneficial effects that:

(1) In the invention, the shuffling large disc is integrally arranged, the shuffling large disc is not separately arranged as a lower large disc and an upper large disc, and the planetary gear reducer and the card pulling device are sequentially arranged on the top surface of the shuffling large disc, so that enough installation space is reserved for the planetary gear reducer, the planetary gear reducer can be directly installed on a central shaft seat, and the abrasion of the planetary gear reducer caused by the operation of the shuffling large disc and the card pulling device is avoided or is negligible; meanwhile, as the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable positions, and stable and effective transmission between the shuffling large disc and the card pulling device is ensured.

(2) In the invention, at least two protruding parts are formed on the inner peripheral wall of a second central hole of the planet carrier, a concave area matched with the second central hole is formed on the outer peripheral wall of a second central shaft seat, and a limiting step which is positioned below the concave area and used for axially limiting the protruding parts is formed on the outer peripheral wall of the second central shaft seat; the circumferential positioning of the planet carrier is realized through the mutually nested convex parts and concave areas; and when the concave area is arranged on the local circumferential position of the central shaft seat, a limit step is naturally formed below the concave area, so that the planet carrier can realize circumferential positioning and axial limit of the planet carrier in one step in the process of assembling the planet carrier to the central shaft seat.

(3) In the invention, both ends of the planet carrier body are provided with the outward flanges, and a planet wheel installation space for installing a primary reduction planet gear and a secondary reduction planet gear is formed between the two outward flanges; the two turnups can position two ends of the central shafts of the primary reduction planetary gear and the secondary reduction planetary gear, and the primary reduction planetary gear and the secondary reduction planetary gear can run more stably.

(4) In the invention, the rotation direction of the card poking device can be the same as that of the card shuffling large disc, and when the rotation speed difference of the card poking device and the card shuffling large disc is smaller and the card poking device and the card poking large disc rotate in the same direction, the card shuffling noise of the card shuffling device is greatly reduced. Meanwhile, in order to further reduce shuffling noise, the number of card-pulling bars can be reduced to be less than or equal to four.

(5) In the invention, the rotating direction of the card poking device can be opposite to the shuffling tray, so that the shuffling speed can be further increased, and the shuffling efficiency can be improved; meanwhile, in order to further improve the shuffling efficiency, the number of the card pulling bars can be properly increased to be more than or equal to four.

(6) In the invention, the big shuffling tray is driven to rotate by the variable speed driving mechanism, and in the early shuffling stage, the big shuffling tray rotates slowly to reduce shuffling noise, and in the later shuffling stage, the big shuffling tray rotates rapidly to improve shuffling efficiency; in this way, in the shuffling device, the change of shuffling speed is realized by the shuffling large disc alone, and the card pulling device only needs to realize differential transmission with the shuffling large disc, so that the function of the card pulling device is simplified. Although the transmission ratio of the shuffling large disc to the card shifter is fixed, when the rotation speed of the shuffling large disc is changed, the rotation speed difference between the card shifter and the shuffling large disc is also changed synchronously, namely: when the shuffling large tray rotates at a low speed, the rotating speed difference between the shuffling device and the shuffling large tray is small, so that the shuffling device can timely poke mahjong tiles piled on the top surface of the shuffling large tray while ensuring low shuffling noise; when the shuffling large tray rotates rapidly, the rotation speed difference between the shuffling device and the shuffling large tray becomes large, which is suitable for the situation that only a small amount of mahjong tiles are remained on the shuffling large tray without high-frequency playing.

Drawings

FIG. 1 is a schematic diagram of a shuffling device of the mahjong machine of the present invention;

fig. 2 is a schematic view of the shuffling device of the mahjong machine of the present invention in another view;

FIG. 3 is a schematic diagram of an exploded construction of a shuffling device of the mahjong machine of the present invention;

FIG. 4 is a schematic diagram of the planetary gear reducer of FIG. 3;

FIG. 5 is a schematic view of the center shaft seat in FIG. 3;

FIG. 6 is a schematic view of the card shifter of FIG. 3 from another perspective;

fig. 7 is a schematic view of the planetary gear reducer in fig. 3 from another perspective.

Detailed Description

The technical scheme of the invention is further described in detail below with reference to the attached drawings and the detailed description.

Example 1

As shown in fig. 1, 3 and 5, the shuffling device of the mahjong machine of this embodiment includes a central shaft seat 2, where a card pulling shaft seat 25, an external thread seat 24, a positioning seat 23 and a shuffling shaft seat 26 are formed in this order from top to bottom on the central shaft seat 2, the outer diameters of the card pulling shaft seat 25, the external thread seat 24 and the shuffling shaft seat 26 are increased in this order, and the outer diameter of the positioning seat 23 is equal to that of the shuffling shaft seat 26; wherein, dial the tablet axle seat 25 and be used for installing and dial the tablet 3, shuffle axle seat 26 is used for installing and shuffle the big dish 1, and location seat 23 is used for installing and is used for realizing the planetary gear reducer 4 of the differential transmission of big dish of shuffling and dial.

As shown in fig. 3, the center of the large shuffling tray 1 has a first center hole 11, and in this first center hole 11, the large shuffling tray 1 is rotatably connected to a shuffling shaft seat 26 on the center shaft seat 2 via a bearing. As can be seen from fig. 1, 2 and 3, the shuffling tray 1 of this embodiment includes a tapered portion 12 at the center and a flat portion 13 at the outer ring, the tapered portion 12 being integrally formed with the flat portion 13.

As shown in fig. 2 and 3, in this embodiment, the shuffling large tray 1 is rotated by a variable speed driving mechanism 5; the specific structure of the variable speed driving mechanism 5 is disclosed in the chinese patent application publication No. CN111282260a, and the description of this embodiment is omitted. In short, the variable speed driving mechanism 5 includes two transmission gears 51 fixedly connected to the bottom surface of the large shuffling tray 1 and driving gears 52 corresponding to the transmission gears 51 one by one, and different combinations of the driving gears 52 and the transmission gears 51 have different speed ratios, so that when the large shuffling tray 1 is rotated by the different combinations of the driving gears 52 and the transmission gears 51, the rotation speed of the large shuffling tray 1 is different. As can be seen from fig. 2, in this embodiment, the gear rings of the two transmission gears 51 are disposed opposite to each other, and the two driving gears 52 are driven by the same shuffling motor 53, and each driving gear 52 is unidirectionally driven by the shuffling motor 53.

As shown in fig. 1 and 3, the top surface of the shuffling large tray 1 is provided with a card pulling device 3, the card pulling device 3 comprises a card pulling seat 31 rotatably connected with a card pulling shaft seat portion 25 of a central shaft seat 2 through a bearing, the card pulling seat 31 is umbrella-shaped, a fifth central hole 31a which is convenient for installing the card pulling shaft seat portion 25 is formed in the center of the card pulling seat 31, and a plurality of card pulling strips 32 are arranged at the edge of the flaring end of the umbrella-shaped card pulling seat 31. The top surface of the playing card holder 31 is fixedly provided with an end cover 33 positioned at the end part of the central shaft seat 2 through a fastener, and the center of the end cover 33 is only provided with a fourth central hole 33a which is convenient for a lifting rod of a central lifting mechanism of the mahjong machine to pass through.

In the embodiment, the card pulling device 3 is driven by a planetary gear reducer 4 and a card shuffling large disc 1, a primary reduction driving pair 42 is arranged between the planetary gear reducer 4 and the card shuffling large disc 1, and a secondary reduction driving pair 43 is arranged between the planetary gear reducer 4 and the card pulling device 3; so that the power of the shuffling large disc 1 is transmitted to the card shifter 3 through the planetary gear reducer 4 in a speed reducing way, and the card shifter 3 are in differential transmission.

As shown in fig. 4 and 5, in combination with fig. 3, the planetary gear reducer 4 includes a carrier 41 circumferentially positioned with the positioning seat portion 23 of the center shaft seat 2, the carrier 41 includes a carrier body 41a having a second center hole 41b, three protrusions 41c are formed on an inner peripheral wall of the second center hole 41b, and three recess areas 21 adapted thereto are formed on an outer peripheral wall of the positioning seat portion 23. When the carrier 41 is mounted on the positioning seat 23, the protruding portions 41c are fitted into the corresponding recessed areas 21, forming circumferential positioning of the carrier 41.

As can be seen in fig. 4 and 5, each of the projections 41c of the planet carrier body 41a includes a radial boss 41ca, and the end of the radial boss 41ca facing the axis of the second central hole 41b is provided with a plurality of radial positioning latches 41cb; correspondingly, each concave area 21 of the positioning seat 23 comprises a radial groove 21a matched with the radial boss 41ca and a radial positioning clamping groove 21b matched with the radial positioning clamping tooth 41 cb.

When the planet carrier 41 is mounted on the positioning seat 23, the nested radial boss 41ca and radial groove 21a, radial positioning latch 41cb and radial positioning latch 21b form a double circumferential positioning of the planet carrier 41, while the bottom surfaces of the radial groove 21a and radial positioning latch 41cb naturally form a limit step 22 under the planet carrier 41; and the locking seat 6 above the planet carrier 41 is arranged on the external thread seat 24 in a threaded manner, and the locking seat 6 cooperates with the limiting step 22 to limit the axial position of the planet carrier 41 on the central shaft seat 2.

As shown in fig. 3 and 4, the planet carrier body 41a has turned-out rims 41d at both ends, and a planet wheel mounting space 44 is formed between the turned-out rims 41 d. Three primary reduction planetary gears 42a are uniformly arranged in the inner circumference of the planetary gear installation space 44, and two ends of a central shaft of each primary reduction planetary gear 42a are respectively in running fit with corresponding flanging 41 d; one of the primary reduction planets 42a is also fixedly coupled to a secondary reduction planet 43a.

As shown in fig. 3, a power input gear 42b meshed with each primary reduction planetary gear 42a is fixed to the top surface of the large shuffling tray 1, and the power input gear 42b and the primary reduction planetary gears 42a constitute a primary reduction gear pair 42. As shown in fig. 7, in combination with fig. 4, the power input gear 42b of the present embodiment is an external gear, and the power input gear 42b is located at the inner ring of the primary reduction planetary gear 42a in transmission; in order to facilitate the engagement of the power input gear 42b with the primary reduction planetary gear 42a, the center of the planet carrier body 41a is further formed with a third center hole 41e communicating with the second center hole 41b, the third center hole 41e having an inner diameter larger than that of the second center hole 41b, and the power input gear 42b being located in the third center hole 41e when the large shuffling tray 1 and the planetary gear reducer 4 are both assembled to the center hub 2; the carrier body 41a is formed with a first through-hole 41f for communicating the third center hole 41e and the planetary gear installation space 44 so that the primary reduction planetary gear 42a meshes with the power input gear 42 b.

As shown in fig. 4 and 6, the bottom surface of the card holder 31 is integrally formed with a power output gear 43b engaged with the secondary reduction planetary gear 43a, the power output gear 43b being located at the opening outer edge of the fifth center hole 31a, the power output gear 43b and the secondary reduction planetary gear 43a constituting the secondary reduction gear pair 43. The power output gear 43b of the present embodiment is also an external gear, and the power output gear 43b is also positioned at the inner ring of the secondary reduction planetary gear 43a at the time of transmission; in order to facilitate the engagement transmission of the two, the top surface of the planet carrier body 41a is further concavely provided with an annular avoidance groove 41g for accommodating the power output gear 43b, and the planet carrier body 41a is further formed with a second through hole 41h for communicating the annular avoidance groove 41g with the planet wheel installation space 44 so that the secondary reduction planet gear 43a is engaged with the power output gear 43 b.

Since the power input gear 42b and the power output gear 43b are both external gears, in this embodiment, the card skimmer 3 rotates in the same direction as the shuffling tray 1, and shuffling noise is greatly reduced. To further reduce shuffling noise, the number of playing bars 32 may also be reduced to four or less.

The mahjong machine shuffling device of the embodiment has the working principle that:

in the front shuffling stage, the variable speed driving mechanism 5 drives the large shuffling tray 1 to rotate slowly, the power input gear 42b distributes the power of the large shuffling tray 1 to the secondary reduction planetary gear 43a in a speed reducing manner through the primary reduction transmission pair 42, and the power of the secondary reduction planetary gear is distributed to the poker machine 3 in a speed reducing manner through the secondary reduction transmission pair 43, so that the poker machine 3 rotates in the same direction and at a differential speed relative to the large shuffling tray 1, and the difference of the rotational speeds of the two is small in the process, so that a large number of mahjong tiles on the top surface of the large shuffling tray 1 can be shifted in time;

in the later stage of shuffling, the variable speed driving mechanism 5 drives the large shuffling tray 1 to rotate rapidly, the power input gear 42b distributes the power of the large shuffling tray 1 to the secondary reduction planetary gear 43a in a speed reducing manner through the primary reduction transmission pair 42, and the power of the secondary reduction planetary gear is distributed to the poker machine 3 in a speed reducing manner through the secondary reduction transmission pair 43, so that the poker machine 3 rotates in the same direction and at a differential speed relative to the large shuffling tray 1, and the rotational speed difference between the two is large in the process, which is suitable for the situation that only a small amount of mahjong pieces are remained on the large shuffling tray 1 without high-frequency poker.

Example 2

The shuffling device of the mahjong machine is basically the same as that of the embodiment 1, except that: the power input gear 42b and the power output gear 43b are both internal gears, and in the running process of the planetary gear reducer 4, the power input gear 42b is located at the outer ring of the primary reduction planetary gear 42a, and the power output gear 43b is located at the outer ring of the secondary reduction planetary gear 43a, so that the third central hole 41e, the annular avoidance groove 41g, the first through hole 41f and the second through hole 41h are not required to be provided on the planet carrier body 41a in this embodiment. In this embodiment, the card shooter 3 and the large shuffling tray 1 are rotated in the same direction as in embodiment 1.

Example 3

The shuffling device of the mahjong machine is basically the same as that of the embodiment 1, except that: the power input gear 42b of the present embodiment is an external gear, and the power input gear 42b is an internal gear; accordingly, only the third central hole 41e and the first through hole 41f are opened on the planet carrier body 41a, and the annular avoidance groove 41g and the second through hole 41h are not provided.

Based on this, in this embodiment, the rotation direction of the card shooter 3 and the shuffling tray 1 is opposite, which significantly accelerates the shuffling speed and shortens the shuffling time. To further increase the shuffling speed, the number of card bars 32 in this embodiment may be increased to four or more.

Example 4

The shuffling device of the mahjong machine is basically the same as that of the embodiment 1, except that: the power input gear 42b of the present embodiment is an internal gear, and the power input gear 42b is an external gear; accordingly, only the annular escape groove 41g and the second through-hole 41h are opened on the carrier body 41a, and the third center hole 41e and the first through-hole 41f are not provided.

In this embodiment, as in embodiment 3, the direction of rotation of the card skimmer 3 and the shuffling tray 1 is also reversed.

Claims (6)

1. The mahjong machine shuffling device comprises a shuffling large disc (1) and a central shaft seat (2) arranged in the center of the shuffling large disc (1), wherein the shuffling large disc (1) is rotationally connected with the central shaft seat (2), and a poker shifter (3) arranged above the shuffling large disc (1) is rotationally connected to the central shaft seat (2); the novel card shuffling machine is characterized in that a planetary gear reducer (4) for realizing transmission between the card shuffling large disc (1) and the card poking device (3) is arranged on the central shaft seat (2), and the planetary gear reducer (4) and the central shaft seat (2) are circumferentially positioned;

the card pulling device is characterized in that a card pulling shaft seat part (25), a positioning seat part (23) and a card shuffling shaft seat part (26) which are sequentially arranged from the top end to the bottom end of the central shaft seat (2) are formed on the central shaft seat, wherein the card pulling shaft seat part (25) is used for installing a card pulling device (3), the card shuffling shaft seat part (26) is used for installing a card shuffling large disc (1), and the positioning seat part (23) is used for installing a planetary gear reducer (4);

a primary speed reduction transmission pair (42) is arranged between the planetary gear reducer (4) and the shuffling large disc (1), and a secondary speed reduction transmission pair (43) is arranged between the planetary gear reducer (4) and the card poking device (3);

the planetary gear reducer (4) comprises a planet carrier (41) which is positioned circumferentially with the central shaft seat (2) and is limited axially, the primary reduction transmission pair (42) comprises a primary reduction planetary gear (42 a) which is connected to the planet carrier (41) in a rotating way, and a power input gear (42 b) which is driven to rotate by the shuffling large disc (1), and the power input gear (42 b) is meshed with the primary reduction planetary gear (42 a);

the secondary speed reduction transmission pair (43) comprises a secondary speed reduction transmission gear which is rotationally connected to the planet carrier (41) and a power output gear (43 b) which is fixedly arranged on the card pulling device (3), the secondary speed reduction transmission gear is meshed with the power output gear (43 b), and the secondary speed reduction transmission gear and the primary speed reduction transmission gear are coaxially arranged;

the planet carrier (41) comprises a planet carrier body (41 a), wherein both ends of the planet carrier body (41 a) are provided with outward flanges (41 d), and a planet wheel installation space (44) for installing a primary reduction planet gear (42 a) and a secondary reduction planet gear (43 a) is formed between the two outward flanges (41 d).

2. The shuffling device of mahjong machine as claimed in claim 1, wherein the planet carrier (41) comprises a planet carrier body (41 a) with a second central hole (41 b), a convex part (41 c) or a concave area is formed on the inner peripheral wall of the second central hole (41 b), and a concave area (21) or a convex area matched with the convex area is formed on the outer peripheral wall of the positioning seat (23).

3. The mahjong machine shuffling device as claimed in claim 2, wherein the shuffling tray (1) is rotated in the same direction as the poker machine (3);

the center of the planet carrier body (41 a) is also provided with a third center hole (41 e) communicated with the second center hole (41 b), and the planet carrier body (41 a) is provided with a first through hole (41 f) used for communicating the third center hole (41 e) with a planet wheel installation space (44) so that the primary reduction planet gear (42 a) is meshed with the power input gear (42 b);

the top surface of the planet carrier body (41 a) is also concavely provided with an annular avoidance groove (41 g) for accommodating a power output gear (43 b), and the planet carrier body (41 a) is also provided with a second through hole (41 h) which is communicated with the annular avoidance groove (41 g) and a planet wheel installation space (44) so as to facilitate the meshing of the secondary reduction planet gear (43 a) and the power output gear (43 b);

the card poking device (3) comprises a card poking seat (31), a plurality of card poking strips (32) extending towards the edge of the card shuffling large tray (1) are arranged on the periphery of the card poking seat (31), and the number of the card poking strips (32) is less than or equal to four;

the shuffling large tray (1) comprises a conical part (12) at the center and a flat plate part (13) at the outer ring, wherein the conical part (12) and the flat plate part (13) are integrally formed;

the shuffling large disc (1) is provided with a first central hole (11) for conveniently installing the central shaft seat (2), and the power input gear (42 b) is positioned at the outer edge of the opening of the first central hole (11);

the planet carrier (41) comprises a planet carrier body (41 a) with a second central hole (41 b), at least two protruding parts (41 c) are uniformly arranged on the inner peripheral wall of the second central hole (41 b), and a concave area (21) matched with the outer peripheral wall of the positioning seat part (23) is formed on the outer peripheral wall of the positioning seat part;

each boss (41 c) comprises a radial boss (41 ca), and one end of the radial boss (41 ca) facing the axis of the second central hole (41 b) is provided with a plurality of radial positioning latches (41 cb); each concave area (21) comprises a radial groove (21 a) matched with the radial boss (41 ca) and a radial positioning clamping groove (21 b) matched with the radial positioning clamping tooth (41 cb); the bottom surfaces of the radial groove (21 a) and the radial positioning clamping groove (21 b) form a limiting step (22), an external thread seat part (24) positioned between a card pulling shaft seat part (25) and a positioning seat part (23) is formed on the central shaft seat (2), a locking seat (6) positioned on the top surface of the planet carrier (41) is fixedly connected on the external thread seat part (24), and the locking seat (6) is used for driving the planet carrier (41) to tightly abut against the limiting step (22);

the card pulling device (3) comprises an umbrella-shaped card pulling seat (31), a fifth central hole (31 a) which is convenient for installing the central shaft seat (2) is formed in the center of the card pulling seat (31), and the power output gear (43 b) is fixedly arranged on the bottom surface of the card pulling seat (31) and is positioned at the outer edge of an opening of the fifth central hole (31 a); the edge of the flaring end of the umbrella-shaped card poking seat (31) is provided with a plurality of card poking strips (32);

the shuffling large disc (1) is driven to rotate by a variable speed driving mechanism (5), the variable speed driving mechanism (5) comprises two transmission gears which are fixedly connected with the bottom surface of the shuffling large disc (1) and are concentrically arranged, and driving gears (52) which are in one-to-one correspondence with the transmission gears, and different combinations of the driving gears (52) and the transmission gears (51) have different speed ratios; the gear rings of the two transmission gears (51) are arranged in opposite directions, the two driving gears (52) are driven by the same shuffling motor (53), and each driving gear (52) is in unidirectional transmission with the shuffling motor (53).

4. The shuffling device of the mahjong machine as claimed in claim 1, wherein the shuffling tray (1) and the poker machine (3) are rotated in the same direction.

5. The mahjong machine shuffling device as claimed in claim 2, wherein the shuffling tray (1) is rotated in opposite directions to the poker machine (3);

the center of the planet carrier body (41 a) is also provided with a third center hole (41 e) communicated with the second center hole (41 b), and the planet carrier body (41 a) is provided with a first through hole (41 f) used for communicating the third center hole (41 e) with a planet wheel installation space (44) so that the primary reduction planet gear (42 a) is meshed with the power input gear (42 b);

or, the top surface of the planet carrier body (41 a) is concavely provided with an annular avoidance groove (41 g) for accommodating the power output gear (43 b), the planet carrier body (41 a) is also provided with a second through hole (41 h) which is communicated with the annular avoidance groove (41 g) and the planet wheel installation space (44) so that the secondary reduction planet gear (43 a) is meshed with the power output gear (43 b);

the card poking device (3) comprises a card poking seat (31), a plurality of card poking strips (32) extending towards the edge of the card shuffling large tray (1) are arranged on the periphery of the card poking seat (31), and the number of the card poking strips (32) is more than or equal to four;

the shuffling large tray (1) comprises a conical part (12) at the center and a flat plate part (13) at the outer ring, wherein the conical part (12) and the flat plate part (13) are integrally formed;

the shuffling large disc (1) is provided with a first central hole (11) for conveniently installing the central shaft seat (2), and the power input gear (42 b) is positioned at the outer edge of the opening of the first central hole (11);

the planet carrier (41) comprises a planet carrier body (41 a) with a second central hole (41 b), at least two protruding parts (41 c) are uniformly arranged on the inner peripheral wall of the second central hole (41 b), and a concave area (21) matched with the outer peripheral wall of the positioning seat part (23) is formed on the outer peripheral wall of the positioning seat part;

each boss (41 c) comprises a radial boss (41 ca), and one end of the radial boss (41 ca) facing the axis of the second central hole (41 b) is provided with a plurality of radial positioning latches (41 cb); each concave area (21) comprises a radial groove (21 a) matched with the radial boss (41 ca) and a radial positioning clamping groove (21 b) matched with the radial positioning clamping tooth (41 cb); the bottom surfaces of the radial groove (21 a) and the radial positioning clamping groove (21 b) form a limiting step (22), an external thread seat part (24) positioned between a card pulling shaft seat part (25) and a positioning seat part (23) is formed on the central shaft seat (2), a locking seat (6) positioned on the top surface of the planet carrier (41) is fixedly connected on the external thread seat part (24), and the locking seat (6) is used for driving the planet carrier (41) to tightly abut against the limiting step (22);

the card pulling device (3) comprises an umbrella-shaped card pulling seat (31), a fifth central hole (31 a) which is convenient for installing the central shaft seat (2) is formed in the center of the card pulling seat (31), and the power output gear (43 b) is fixedly arranged on the bottom surface of the card pulling seat (31) and is positioned at the outer edge of an opening of the fifth central hole (31 a); the edge of the flaring end of the umbrella-shaped card poking seat (31) is provided with a plurality of card poking strips (32);

the shuffling large disc (1) is driven to rotate by a variable speed driving mechanism (5), the variable speed driving mechanism (5) comprises two transmission gears which are fixedly connected with the bottom surface of the shuffling large disc (1) and are concentrically arranged, and driving gears (52) which are in one-to-one correspondence with the transmission gears, and different combinations of the driving gears (52) and the transmission gears (51) have different speed ratios; the gear rings of the two transmission gears (51) are arranged in opposite directions, the two driving gears (52) are driven by the same shuffling motor (53), and each driving gear (52) is in unidirectional transmission with the shuffling motor (53).

6. The shuffling device of the mahjong machine as claimed in claim 1, wherein the shuffling large tray (1) is rotated opposite to the card shifter (3).