Deceleration motor driving mechanism

Abstract

The utility model discloses a gear motor driving mechanism which comprises a driving motor and a gear reducer, the gear reducer is provided with an output rotating shaft which outputs rotating acting force outwards, and a rotating shaft of the driving motor and the output rotating shaft of the gear reducer are arranged in an angle mode. The gear reducer comprises a first shell, a second shell and a third shell, the first shell and the third shell are arranged on the upper side and the lower side of the second shell respectively, the second shell extends towards one side in the radial direction of the gear reducer to form a motor installation part, and the driving motor is installed on the motor installation part. According to the utility model, worm and gear meshing transmission is adopted, and the transmission position and the transmission structure of the driving motor and the gear reducer are further improved and optimized, so that the motor driving mechanism is more compact in structure, thinner in overall thickness and smaller in volume, saves space, is more beneficial to the arrangement and installation of the gear motor driving mechanism, and is more convenient to use. And miniaturization of applied electrical products can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a reduction motor drive mechanism. Background Art

[0002] In order to adapt to the fast-paced work and life of modern people, miniaturization is one of the development directions of electrical products. There are two main ways to achieve miniaturization of electrical products and reduce the volume of electrical products. One is to change and optimize the functional structure of components, and the other is to optimize the layout and position relationship of components. According to the specific situation of the electrical products, technicians in this field need to flexibly design and optimize based on various factors. An extruder ice maker is an electrical product used to make ice cubes. The evaporator of the extruder ice maker generally includes a cylinder and an ice knife arranged in the cylinder. A refrigerant circulation cavity is arranged outside the cylinder. The ice knife is driven to rotate by a motor drive mechanism, so that the water entering the cylinder rises with the rotation of the ice knife and condenses into ice, and then squeezes out of the cylinder from the ice head at the top of the cylinder. In order to make the water turn into ice smoothly and squeeze out of the cylinder, the motor drive mechanism needs to give the ice knife a smaller speed and a larger force. For this reason, the motor drive mechanism of the ice maker needs to be equipped with a reduction gear box to reduce the speed of the output shaft of the motor drive mechanism and increase the driving force of the output shaft. The existing ice-making machine evaporator drive mechanism is mostly parallel-axis, that is, the gearbox output shaft and the drive motor shaft are parallel to each other. The ice-making machine evaporator drive mechanism with this structural layout has some obvious defects in practical applications, specifically, there are many transmission meshing parts, which not only has high production costs, but also makes the volume of the ice-making machine evaporator drive mechanism too large, which is not conducive to saving space. Therefore, it is necessary to improve and optimize the existing ice-making machine evaporator drive mechanism. Utility Model Content

[0003] In view of the above background and the problems existing in the prior art methods, the utility model provides a reduction motor drive mechanism. The technical solution of the utility model is:

[0004] A reduction motor drive mechanism comprises a drive motor and a gear reduction box, wherein the gear reduction box has an output shaft for outputting a rotational force outward, the shaft of the drive motor and the output shaft of the gear reduction box are arranged at an angle to each other, the gear reduction box comprises a first shell, a second shell and a third shell, the first shell and the third shell are respectively arranged on the upper and lower sides of the second shell, the second shell extends to one side along the radial direction of the gear reduction box to form a motor mounting portion, and the drive motor is mounted on the motor mounting portion; the gear reduction box comprises a planetary gear unit and a transmission gear unit, a first transmission cavity is formed in the motor mounting portion, and the drive motor and the transmission gear unit are meshingly connected.

[0005] As a further description of the present utility model, the transmission gear unit includes a first transmission tooth and a second transmission tooth, the first transmission tooth and the second transmission tooth are coaxially arranged, a worm gear transmission is formed between the first transmission tooth and the drive motor, and a gear meshing transmission is formed between the second transmission tooth and the planetary gear unit.

[0006] Furthermore, a second transmission cavity is formed in the third housing, and the second transmission tooth is arranged in the second transmission cavity and is transmission-connected to the planetary gear unit.

[0007] Furthermore, the first housing, the second housing and the third housing together form a planetary gear transmission chamber, and the planetary gear unit is arranged in the planetary gear transmission chamber.

[0008] Furthermore, the planetary gear unit includes a primary planetary gear unit and a secondary planetary gear unit, wherein the primary planetary gear unit is transmission-connected to the transmission gear unit, and the secondary planetary gear unit is used to drive the output shaft of the gear reduction box.

[0009] Furthermore, the height of the driving motor is not greater than the height of the gear reduction box.

[0010] Furthermore, the rotating shaft of the driving motor and the output rotating shaft of the gear reduction box are arranged at an angle of 90 degrees to each other.

[0011] Beneficial effects of the utility model:

[0012] The utility model adopts worm gear meshing transmission, changes the position and direction relationship between the output shaft of the gear box and the shaft of the drive motor, further improves and optimizes the transmission position and transmission structure of the drive motor and the gear reduction box, makes the motor drive mechanism structure more compact, the overall thickness is thinner, the volume is smaller, and space is saved, which is more conducive to the arrangement and installation of the reduction motor drive mechanism inside the ice maker, and is conducive to the miniaturization of electrical products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the layout structure of the reduction motor drive mechanism of the utility model embodiment;

[0014] Figure 2 This is a diagram showing the internal transmission structure of the reduction motor drive mechanism of the utility model embodiment.

[0015] Reference numerals: driving motor 1 , rotating shaft 101 , output rotating shaft 2 , first housing 3 , second housing 4 , motor mounting portion 401 , third housing 5 , first transmission teeth 6 , second transmission teeth 7 , primary planetary gear unit 8 , secondary planetary gear unit 9 . DETAILED DESCRIPTION

[0016] Example:

[0017] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] As attached Figure 1-2 A reduction motor drive mechanism shown in the figure includes a drive motor 1 and a gear reduction box, the gear reduction box has an output shaft 2 for outputting a rotational force outward, the shaft 101 of the drive motor 1 and the output shaft 2 of the gear reduction box are arranged at an angle to each other, the gear reduction box includes a first shell 3, a second shell 4 and a third shell 5, the first shell 3 and the third shell 5 are respectively arranged on the upper and lower sides of the second shell 4, the second shell 4 extends to one side along the radial direction of the gear reduction box to form a motor mounting portion 401, and the drive motor 1 is mounted on the motor mounting portion 401; the gear reduction box includes a planetary gear unit and a transmission gear unit, a first transmission cavity is formed in the motor mounting portion 401, and the drive motor 1 and the transmission gear unit are meshingly connected. When the reduction motor driving mechanism is running, the power is input from the rotating shaft of the driving motor 1, and after meshing with the transmission gear unit, the planetary gear unit in the gear reduction box is driven to rotate, and the output rotating shaft 2 is driven to rotate and output the final driving force. After the gear reduction box is decelerated, the speed of the output rotating shaft 2 is reduced and its driving force is increased, so that it can be applied to the driving of the ice maker evaporator. The reduction motor driving mechanism of this embodiment adopts a worm gear meshing transmission, and while changing the position and direction relationship between the output rotating shaft 2 of the gear transmission box and the rotating shaft 101 of the driving motor 1, the transmission position and transmission structure of the driving motor 1 and the gear reduction box are further improved and optimized, so that the structure of the motor driving mechanism is more compact. Specifically, the driving motor 1 is arranged at a position roughly equal to the height in the middle of the gear reduction box, so that the overall thickness of the reduction motor driving mechanism is thinner, the volume is reduced, and space is saved, which is more conducive to the installation of the reduction motor driving mechanism inside the ice maker, and is conducive to the miniaturization of electrical products.

[0020] In this embodiment, referring to the drawings, since the drive motor 1 and the middle part of the gear reduction box are arranged at roughly the same height, in order to facilitate the transmission with the planetary gear unit, the transmission gear unit of this embodiment includes a first transmission tooth 6 and a second transmission tooth 7, the first transmission tooth 6 and the second transmission tooth 7 are arranged coaxially, the first transmission tooth 6 and the drive motor 1 are driven by a worm gear, and the second transmission tooth 7 and the planetary gear unit are driven by a gear meshing. In this way, the installation height position of the drive motor 1 can be designed and adjusted according to the needs of practical applications without substantially changing the structure of the conventional planetary gear unit, so that the reduction motor drive mechanism can meet the design and installation needs of the electrical product to which it is applied. For example, in this embodiment, a second transmission cavity is formed in the third housing 5, the second transmission tooth 7 is arranged in the second transmission cavity and is connected to the planetary gear unit, and the power provided by the drive motor 1 is still transmitted from one end of the gear reduction box to the other end (in the drawings, it can be understood that the power is transmitted from the lower side of the gear reduction box to the upper side), and finally drives the output rotating frame of the gear reduction box to rotate and output power.

[0021] It is easy to understand that the gear reducer of this embodiment is composed of the first housing 3, the second housing 4 and the third housing 5 to form a planetary gear transmission cavity, and the planetary gear unit is arranged in the planetary gear transmission cavity. Specifically, the planetary gear unit includes a primary planetary gear unit 8 and a secondary planetary gear unit 9, wherein the primary planetary gear unit 8 is connected to the transmission gear unit in a transmission manner, and the secondary planetary gear unit 9 is used to drive the output shaft 2 of the gear reducer. Similar to the existing gear reducer, the reduction motor drive mechanism of this embodiment is also based on the deceleration and torque amplification function of the gear reducer to slow down the rotation input by the drive motor 1 and amplify the driving force input by the drive motor 1. The difference lies in the positional relationship and meshing transmission structure between the drive motor 1 and the gear reducer. Through the structural setting of this embodiment, the drive motor 1 can be arranged in the middle of the gear reducer and the power input from the middle can be adjusted to be input from the primary planetary gear unit 8 of the gear reducer and output from the secondary planetary gear unit 9. That is, on the premise of ensuring that the driving function of the reduction motor drive mechanism is not affected, the reduction motor drive mechanism structure is made more compact to achieve the purpose of reducing the installation volume.

[0022] Based on the structural arrangement of the present invention, it is easy to understand that the height of the drive motor 1 is not greater than the height of the gear reducer. Thus, in the height direction, the height of the gear reducer is the height of the entire reduction motor drive mechanism. During installation, only one height value needs to be considered. There is no need to consider the height of the drive motor 1, the height of the gear reducer, and the height of the entire reduction motor drive mechanism separately. Fewer factors need to be considered, which facilitates the design and assembly of the structure of the electrical products to which it is applied.

[0023] Furthermore, the angle between the rotating shaft 101 of the drive motor 1 and the output rotating shaft 2 of the gear reducer means that the two are not parallel to each other. As for the size of the angle between the two, it can be selected and set according to actual conditions, as long as it is within a feasible and reasonable range. For example, under normal circumstances, it is preferred to set the angle between the rotating shaft 101 of the drive motor 1 and the output rotating shaft 2 of the gear reducer to 90 degrees, that is, the two are perpendicular to each other, which is easy to implement and produce in structural design, and is a better implementation of the present invention, but the present invention is not limited to this angle setting.

[0024] The above only describes the preferred embodiments of the utility model, which should not be construed as limiting the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. In short, all changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A reduction motor drive mechanism, comprising a drive motor and a gear reduction box, wherein the gear reduction box has an output shaft for outputting a rotational force outward, and the shaft of the drive motor and the output shaft of the gear reduction box are arranged at an angle to each other, characterized in that: The gear reduction box includes a first shell, a second shell and a third shell, the first shell and the third shell are respectively arranged on the upper and lower sides of the second shell, the second shell extends to one side along the radial direction of the gear reduction box to form a motor mounting portion, and the drive motor is mounted on the motor mounting portion; the gear reduction box includes a planetary gear unit and a transmission gear unit, a first transmission cavity is formed in the motor mounting portion, and the drive motor and the transmission gear unit are meshingly connected.

2. The reduction motor drive mechanism according to claim 1, characterized in that: The transmission gear unit includes a first transmission tooth and a second transmission tooth, the first transmission tooth and the second transmission tooth are coaxially arranged, a worm gear transmission is performed between the first transmission tooth and the drive motor, and a gear meshing transmission is performed between the second transmission tooth and the planetary gear unit.

3. The reduction motor drive mechanism according to claim 2, characterized in that: A second transmission cavity is formed in the third housing, and the second transmission tooth is disposed in the second transmission cavity and is transmission-connected to the planetary gear unit.

4. The reduction motor drive mechanism according to claim 1, characterized in that: The first housing, the second housing and the third housing together form a planetary gear transmission chamber, and the planetary gear unit is arranged in the planetary gear transmission chamber.

5. The reduction motor drive mechanism according to claim 4, characterized in that: The planetary gear unit includes a primary planetary gear unit and a secondary planetary gear unit, wherein the primary planetary gear unit is drivingly connected to the transmission gear unit, and the secondary planetary gear unit is used to drive the output shaft of the gear reduction box.

6. The reduction motor drive mechanism according to claim 1, characterized in that: The height of the driving motor is not greater than the height of the gear reduction box.

7. The reduction motor drive mechanism according to claim 1, characterized in that: The rotating shaft of the driving motor and the output rotating shaft of the gear reduction box are arranged at an angle of 90 degrees to each other.

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