CN214413947U

CN214413947U - Transmission structure for dough kneading machine

Info

Publication number: CN214413947U
Application number: CN202120200134.3U
Authority: CN
Inventors: 王文飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-19
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to a transmission structure for malaxator in drive mechanism field, including motor, gear box, back shaft and stirring subassembly, the inside of gear box is divided into ascending last transmission chamber of opening and the decurrent underdrive chamber of opening by the baffle, goes up to be equipped with in the transmission chamber and installs the speed reduction helical gear of back shaft upper end and mate the worm of meshing with the speed reduction helical gear, and the inner wall in underdrive chamber is equipped with circular internal tooth to be equipped with and carry out the rolling gear that meshes along circular internal tooth, the stirring subassembly includes the connecting rod, stirring and linkage. Set up a set of worm and speed reduction helical gear and carry out the transmission, the motor drives the back shaft through worm and speed reduction helical gear cooperation and rotates, has simplified transmission structure after the whole combination to make the stirring piece realize synchronous rotation by the linkage, make up into the noise that novel transmission structure can effectively reduce the transmission in-process and produce, increase driven stability, both can realize the big torque output of low rotational speed, but also can promote work efficiency and product quality.

Description

Transmission structure for dough kneading machine

Technical Field

The utility model relates to a drive mechanism field, concretely relates to a transmission structure for dough kneading machine.

Background

The kitchen appliances such as dough kneaders, cooks and the like are popular because of convenience and rapidness, the devices all need to be provided with transmission mechanisms, the transmission mechanism of the traditional device is usually realized by a plurality of groups of reduction gears, and the output of lower rotating speed is realized by the plurality of groups of reduction gears. Because the rotating speed of a common motor is relatively high, in order to realize the output of low rotating speed (about 40-250 rpm), a larger transmission ratio is needed for speed reduction.

The currently commonly used reduction gearing scheme is as follows: the transmission is realized by adopting a multi-stage speed reducing mechanism (belt speed reduction or gear speed reduction), and the scheme has the defects of more transmission stages, more gears and more parts, thereby causing large occupied space, short service life of the gears and high noise of the transmission.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above defect, providing a transmission structure for dough kneading machine, it has simplified transmission structure, can effectively reduce the noise that produces among the transmission process.

The utility model aims at realizing through the following mode:

a transmission structure for a dough kneading machine comprises a motor, a gear box, a support shaft and a stirring assembly, wherein the interior of the gear box is divided into an upper transmission cavity with an upward opening and a lower transmission cavity with a downward opening by a partition plate, the support shaft can rotatably penetrate into the gear box and respectively extends to the middle parts of the upper transmission cavity and the lower transmission cavity, a speed reduction helical gear arranged at the upper end of the support shaft and a worm meshed with the speed reduction helical gear in a matching way are arranged in the upper transmission cavity, the worm is connected with a rotating shaft of the motor and drives the worm and the speed reduction helical gear to synchronously rotate, circular inner teeth are arranged on the inner wall of the lower transmission cavity and are provided with rolling gears capable of rolling along the circular inner teeth in a meshing way, the stirring assembly comprises a connecting rod, a stirring piece and a linkage piece, one end of the linkage piece is fixedly arranged at the bottom of the support shaft, the connecting rod is arranged at the other end of the linkage piece through a bearing, and the upper end of the connecting rod extends upwards to penetrate into the rolling gears, and is fixedly connected with the rolling gear, and the lower end of the connecting rod extends downwards and is fixedly connected with the stirring piece.

In the above description, it is preferable that the end of the worm away from the motor is provided with a circular boss for correcting the deformation of the worm during operation.

In the above description, as a preferred scheme, the opening of the lower transmission cavity is provided with a lower protecting cover, the inner side surface of the lower protecting cover is provided with a positioning groove for accommodating the linkage in a matching manner, and the lower protecting cover and the support shaft rotate synchronously during operation.

In the above description, it is preferable that the opening of the upper transmission chamber is provided with a gear box cover.

In the above description, the motor is preferably a brush dc motor, a brushless dc motor, an ac motor, or a reluctance synchronous motor.

In the above description, as the preferred scheme, the lower extreme of connecting rod is equipped with spring, preforming and card post, preforming hold-down spring, and the top of stirring is equipped with the socket that is used for pairing to insert the connecting rod and the draw-in groove that switches on with the socket, and the one end of draw-in groove is equipped with the screens that is used for chucking card post.

In the above description, preferably, the lower end of the connecting rod is screwed to the upper end of the stirring bar.

The utility model discloses produced beneficial effect is: set up a set of worm and speed reduction helical gear and carry out the transmission, the motor drives the back shaft rotation through worm and speed reduction helical gear cooperation, simultaneously through circular internal tooth and rolling gear's cooperation, the transmission structure has been simplified after the whole combination, the part is less and connect simply, and make stirring piece realize synchronous rotation by the linkage, only set up a set of worm and speed reduction helical gear complex transmission structure and can send the torsion of motor to the back shaft, make up into the noise that novel transmission structure can effectively reduce the transmission in-process and produce, increase driven stability, both can realize the big torsion output of low rotational speed, and still can promote work efficiency and product quality.

Drawings

Fig. 1 is a schematic perspective view of a top view angle according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the bottom view of the embodiment of the present invention;

fig. 3 is an exploded view of the top view of the embodiment of the present invention;

fig. 4 is an exploded view of the bottom view of the embodiment of the present invention;

in the figure, 1 is a motor, 2 is a gear box, 3 is a gear box cover, 4 is a supporting shaft, 5 is a worm, 6 is a speed reduction helical gear, 7 is a circular shaft sleeve, 8 is a connecting rod, 9 is a stirring piece, 10 is a linkage piece, 11 is a rolling gear, 12 is circular internal teeth, and 13 is a lower protective cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the present embodiment, referring to fig. 1-4, a transmission structure for a dough kneading machine, which is specifically implemented by the present embodiment, includes a motor 1, a gear box 2, a supporting shaft 4 and a stirring assembly, the motor 1 of the present embodiment is a brushless dc motor 1, the interior of the gear box 2 is divided into an upper transmission cavity with an upward opening and a lower transmission cavity with a downward opening by a partition plate, an opening of the upper transmission cavity is provided with a gear box cover 3, and the gear box cover 3 is locked by screws.

The supporting shaft 4 can penetrate into the gear box 2 in a rotating mode and respectively extends to the middle of the upper transmission cavity and the middle of the lower transmission cavity, a speed reduction bevel gear 6 mounted at the upper end of the supporting shaft 4 and a worm 5 meshed with the speed reduction bevel gear 6 in a matching mode are arranged in the upper transmission cavity, the worm 5 is connected with a rotating shaft of the motor 1, the motor 1 drives the worm 5 and the speed reduction bevel gear 6 to rotate synchronously, and a circular shaft sleeve 7 used for correcting the deformation of the worm 5 in the working process is arranged at the tail end, away from the motor 1, of the worm 5. The inner wall of the lower transmission cavity is provided with circular inner teeth 12 and a rolling gear 11 which can roll along the circular inner teeth 12 in a meshing way.

The stirring subassembly includes connecting rod 8, stirring 9 and linkage 10, the one end fixed mounting of linkage 10 is in the bottom of back shaft 4, connecting rod 8 passes through the bearing and installs the other end at linkage 10, the upper end of connecting rod 8 upwards extends and penetrates rolling gear 11, and carry out fixed connection with rolling gear 11, the lower extreme downwardly extending of connecting rod 8 carries out fixed connection with stirring 9, the opening in transmission chamber is equipped with protecting cover 13 down, the medial surface of protecting cover 13 is equipped with the constant head tank that is used for pairing holding linkage 10 down. The lower extreme of the connecting rod 8 of this embodiment is equipped with spring, preforming and card post, preforming hold-down spring, and the top of stirring 9 is equipped with the socket that is used for pairing to insert connecting rod 8 and the draw-in groove that switches on with the socket, and the one end of draw-in groove is equipped with the screens that are used for chucking card post.

The motor 1 during operation of this embodiment drives speed reduction helical gear 6 and back shaft 4 through worm 5 and rotates, and simultaneously, back shaft 4 also synchronous dynamic link 10 rotates, drives rolling gear 11 when linkage 10 rotates and carries out the circumference formula along circular internal tooth 12 and roll, and rolling gear 11 rolls drives stirring piece 9 through connecting rod 8 and realizes rotating to can carry out the low-speed stirring action. The transmission structure has been simplified after the whole combination, and the part is less and connect simply to make stirring piece 9 realize synchronous rotation by linkage 10, make up into novel transmission structure and can effectively reduce the noise that the transmission in-process produced, increase driven stability, both can realize low rotational speed output, but also can promote work efficiency and product quality.

The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as the utility model discloses a protection scope.

Claims

1. A transmission structure for malaxator, including motor, gear box, back shaft and stirring subassembly, its characterized in that: the interior of the gear box is divided into an upper transmission cavity with an upward opening and a lower transmission cavity with a downward opening by a partition plate, a support shaft can be rotatably penetrated into the gear box, and respectively extend to the middle parts of the upper transmission cavity and the lower transmission cavity, a speed reduction bevel gear arranged at the upper end of the supporting shaft and a worm meshed with the speed reduction bevel gear in a matching way are arranged in the upper transmission cavity, the worm is connected with a rotating shaft of a motor, the motor drives the worm and the speed reduction bevel gear to synchronously rotate, the inner wall of the lower transmission cavity is provided with circular inner teeth, and is provided with a rolling gear which can roll along the circular internal teeth in a meshing way, the stirring assembly comprises a connecting rod, a stirring piece and a linkage piece, one end of the linkage piece is fixedly arranged at the bottom of the supporting shaft, the connecting rod is arranged at the other end of the linkage piece through a bearing, the upper end of the connecting rod extends upwards to penetrate into the rolling gear, and is fixedly connected with the rolling gear, and the lower end of the connecting rod extends downwards and is fixedly connected with the stirring piece.

2. The transmission structure for a dough kneading machine according to claim 1, wherein: and a circular shaft sleeve for correcting the deformation of the worm in the working process is arranged at the tail end of the worm, which is far away from the motor.

3. The transmission structure for a dough kneading machine according to claim 1, wherein: the opening of lower transmission chamber is equipped with down the protecting cover, and the medial surface of lower protecting cover is equipped with the constant head tank that is used for mating to hold the linkage.

4. A transmission structure for a dough kneading machine according to any one of claims 1 to 3, wherein: and a gear box cover is arranged at an opening of the upper transmission cavity.

5. A transmission structure for a dough kneading machine according to any one of claims 1 to 3, wherein: the motor is a brush direct current motor or a brushless direct current motor or an alternating current motor or a reluctance synchronous motor.

6. A transmission structure for a dough kneading machine according to any one of claims 1 to 3, wherein: the lower extreme of connecting rod is equipped with spring, preforming and card post, preforming compression spring, and the top of stirring piece is equipped with the socket that is used for pairing to insert the connecting rod and the draw-in groove that switches on with the socket, and the one end of draw-in groove is equipped with the screens that is used for the chucking card post.

7. A transmission structure for a dough kneading machine according to any one of claims 1 to 3, wherein: the lower end of the connecting rod is in threaded connection with the upper end of the stirring piece.