Motor integrated with reduction gearbox

Abstract

The utility model relates to the technical field of motors, and particularly discloses a motor integrated with a reduction gearbox, which comprises a motor shell, a stator assembly, a rotor assembly, a rotating shaft, an end cover assembly, a transmission part and an output shaft, the stator assembly and the rotor assembly are both arranged in the motor shell, and the rotating shaft is connected with the rotor assembly; the end cover assembly is fixedly connected with the motor shell and covers an opening of the motor shell, a containing cavity is formed in the end cover assembly, and an open hole communicated with the containing cavity is formed in the surface of the end cover assembly; the transmission part is arranged in the containing cavity, the rotating shaft extends into the containing cavity and is connected with the transmission part, the transmission part is connected with the output shaft so as to be used for transmitting driving force to the output shaft, and the output shaft extends out of the open hole; and the rotating shaft and the output shaft are coaxially arranged. The motor and the reduction gearbox are designed into an integrated structure, so that the manufacturing cost is reduced, and the performance of the motor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor designed as an integral unit with a reduction box. Background Art

[0002] A gearbox is a device used with a motor to reduce the speed of the motor by changing the transmission ratio. Planetary gearboxes ensure the coaxiality of the motor shaft and the gearbox output shaft, making them the most common type of gearbox on the market. However, planetary gearboxes are separate components that typically require external procurement, resulting in high costs. Furthermore, the motor shaft and the gearbox output shaft require a coupling. Improper installation can lead to eccentricity, affecting motor performance. Utility Model Content

[0003] The utility model provides a motor designed as an integral unit with a reduction box. The motor and the reduction box are designed as an integrated structure, which reduces manufacturing costs and ensures the performance of the motor.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] An embodiment of the present utility model provides a motor designed as an integral part of a reduction gearbox, comprising a motor housing, a stator assembly, a rotor assembly, a rotating shaft, an end cover assembly, a transmission member and an output shaft; the stator assembly and the rotor assembly are both arranged in the motor housing, and the rotating shaft is connected to the rotor assembly; the end cover assembly is fixedly connected to the motor housing and covers the opening of the motor housing, the interior of the end cover assembly is provided with a accommodating cavity, and the surface of the end cover assembly is provided with an opening connected to the accommodating cavity; the transmission member is arranged in the accommodating cavity, the rotating shaft extends into the accommodating cavity and is connected to the transmission member, the transmission member is connected to the output shaft for transmitting driving force to the output shaft, and the output shaft extends from the opening; the rotating shaft and the output shaft are coaxially arranged.

[0006] In some embodiments, the transmission member includes a first gear and a second gear coaxially connected, the rotating shaft is provided with external teeth adapted to the first gear, and the external teeth of the rotating shaft are engaged with the first gear; a third gear is coaxially connected to the output shaft, and the third gear is engaged with the second gear.

[0007] In some embodiments, the end cover assembly includes a front end cover and a rear end cover, the rear end cover is fixedly connected to the motor housing and covers the opening of the motor housing, the front end cover is fixed to the outside of the rear end cover, the front end cover and the rear end cover are combined to form a accommodating cavity, and the opening is set on the front end cover.

[0008] In some embodiments, the inner side surface of the front end cover is provided with a receiving groove, the output shaft and the third gear are both located in the receiving groove, and the inner side surface of the front end cover is also fixed with a mounting cover, which is used to position the output shaft.

[0009] In some embodiments, a first bearing is fixed on the mounting cover, and one end of the output shaft close to the mounting cover is connected to the first bearing.

[0010] In some embodiments, a second bearing is fixed in the receiving groove, and the end of the output shaft away from the mounting cover is connected to the second bearing.

[0011] In some embodiments, the transmission member further includes a central shaft, and the central shaft is coaxially connected to the first gear and the second gear.

[0012] In some embodiments, a third bearing is fixed to the rear end cover, and one end of the central shaft close to the rear end cover is connected to the third bearing.

[0013] In some embodiments, a fourth bearing is fixed to the front end cover, and one end of the central shaft close to the front end cover is connected to the fourth bearing.

[0014] The present invention has at least the following beneficial effects: an accommodating cavity is provided inside the end cover assembly of the present invention, and an opening connected to the accommodating cavity is provided on the surface of the end cover assembly; a transmission member is provided in the accommodating cavity, a rotating shaft extends into the accommodating cavity and is connected to the transmission member, and the transmission member is connected to the output shaft, thereby transmitting the driving force of the rotating shaft to the output shaft to drive the output shaft to rotate; this is equivalent to the end cover assembly being used to cover the motor housing and form the outer shell of the reduction gearbox. The motor and the reduction gearbox share the end cover assembly, so that the motor and the reduction gearbox are designed as an integrated structure, and there is no need to purchase a reduction gearbox from outside, which reduces the overall manufacturing cost and saves the process of docking the rotating shaft of the motor with the output shaft of the reduction gearbox. The concentricity of the rotating shaft and the output shaft is higher, and eccentricity is not easy to occur, thereby ensuring the performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a motor designed as a whole with a reduction gearbox according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A cross-sectional view of a motor integrated with a reduction gearbox is shown;

[0017] Figure 3 This is an exploded schematic diagram of a motor designed as a whole with a reduction gearbox according to an embodiment of the present invention;

[0018] Figure 4 This is a partial cross-sectional schematic diagram of a motor designed as an integral unit with a reduction gearbox according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic structural diagram of a rear end cover according to an embodiment of the present invention;

[0020] Figure 6 This is a structural schematic diagram of a front end cover according to an embodiment of the present invention.

[0021] Wherein, the accompanying drawings are marked as follows:

[0022] Motor housing 100;

[0023] stator assembly 210, rotor assembly 220;

[0024] Rotating shaft 300, external teeth 310;

[0025] End cover assembly 400, front cover 410, opening 411, receiving groove 412, fourth placement groove 413, rear cover 420, rotation hole 421, third placement groove 422;

[0026] Transmission member 500, first gear 510, second gear 520, central shaft 530;

[0027] Output shaft 600, third gear 610;

[0028] Mounting cover 700, first placement slot 710;

[0029] A first bearing 810 , a second bearing 820 , a third bearing 830 , and a fourth bearing 840 . DETAILED DESCRIPTION

[0030] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0031] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0032] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0033] The embodiment of the present utility model provides a motor designed as a whole with a reduction gearbox, such as Figure 1-3 As shown, the motor housing 100 includes a stator assembly 210, a rotor assembly 220, a rotating shaft 300, an end cap assembly 400, a transmission member 500, and an output shaft 600. The stator assembly 210 and the rotor assembly 220 are both disposed within the motor housing 100. The rotating shaft 300 is connected to the rotor assembly 220. When the motor is powered on, the rotor assembly 220 drives the rotating shaft 300 to rotate. The motor housing 100 is provided with an opening through which the stator assembly 210, the rotor assembly 220, and the rotating shaft 300 can be placed into the motor housing 100. The end cap assembly 400 is fixedly connected to the motor housing 100 and covers the opening of the motor housing 100. The end cap assembly 400 and the motor housing 100 enclose the stator assembly 210 and the rotor assembly 220, providing dust protection for the stator assembly 210 and the rotor assembly 220.

[0034] The end cap assembly 400 is provided with an accommodating cavity inside, and an opening 411 communicating with the accommodating cavity is provided on the surface of the end cap assembly 400. The transmission member 500 is provided in the accommodating cavity, and the surface of the end cap assembly 400 is also provided with a rotating hole communicating with the accommodating cavity. The rotating shaft 300 extends into the accommodating cavity through the rotating hole and is connected to the transmission member 500. The transmission member 500 is connected to the output shaft 600, transmitting the driving force of the rotating shaft 300 to the output shaft 600 to drive the output shaft 600 to rotate, and the reduction ratio is controlled by properly configuring the transmission member 500. The output shaft 600 extends from the opening 411 to facilitate connection with an external component to be driven. The rotating shaft 300 and the output shaft 600 are coaxially arranged.

[0035] The end cover assembly 400 of this embodiment is used to cover the motor housing 100 and also forms the outer shell of the reduction gearbox. The motor and the reduction gearbox share the end cover assembly 400, so that the motor and the reduction gearbox are designed as an integrated structure, and there is no need to purchase a reduction gearbox externally, thereby reducing the overall manufacturing cost; the process of docking the rotating shaft 300 of the motor with the output shaft 600 of the reduction gearbox is eliminated, and the concentricity of the rotating shaft 300 and the output shaft 600 is higher, and eccentricity is less likely to occur, thereby ensuring the performance of the motor and effectively reducing noise.

[0036] In some embodiments, as Figure 2-4As shown, the transmission member 500 comprises coaxially connected first gear 510 and second gear 520, the rotating shaft 300 is provided with the outer teeth 310 matched with the first gear 510, the outer teeth 310 of the rotating shaft 300 is engaged with the first gear 510; the output shaft 600 is coaxially connected with the third gear 610, the third gear 610 is engaged with the second gear 520.

[0037] When the rotating shaft 300 rotates, because the outer teeth 310 of the rotating shaft 300 is engaged with the first gear 510, the rotating shaft 300 can drive the first gear 510 to rotate, the second gear 520 is also rotated accordingly, because the third gear 610 is engaged with the second gear 520, the second gear 520 drives the third gear 610 to rotate, and then drives the output shaft 600 to rotate, realizing the transmission of driving force.

[0038] The embodiment can adjust the speed reduction ratio by configuring the tooth number of the first gear 510, the second gear 520 and the third gear 610, and more easily realize the regulation and control of different speed reduction ratios.

[0039] Further, the end cover assembly 400 comprises a front end cover 410 and a rear end cover 420, the rear end cover 420 is fixedly connected with the motor housing 100 and covers the opening of the motor housing 100, the front end cover 410 is fixed on the outer side of the rear end cover 420 (away from the motor housing 100 side), the front end cover 410 and the rear end cover 420 enclose to form a containing cavity, and the opening 411 is arranged on the front end cover 410.

[0040] The end cover assembly 400 of the embodiment is a split structure, which is convenient for assembling the transmission member 500 into the containing cavity, and is also convenient for overhauling the devices in the containing cavity. Figure 5 As shown, the rotating hole 421 of the above embodiment can be arranged on the rear end plate 420.

[0041] The front end cover 410 and the rear end cover 420 of the embodiment can be fastened together by screws, or fixed together by screwing each other, or fixed together by buckle connection. Of course, other fixing ways can also be used to fix the front end cover 410 and the rear end cover 420 together.

[0042] In some embodiments, as shown in FIG. 6, the front end cover 410 and the rear end cover 420 can be connected by a plurality of connecting rods 430. Figure 3-6As shown, the inner side of the front cover 410 is provided with a receiving groove 412. The output shaft 600 and the third gear 610 are both located in the receiving groove 412, which provides space for the output shaft 600 and the third gear 610 to rotate. The receiving groove 412 is part of the receiving cavity. A mounting cover 700 is also fixed to the inner side of the front cover 410. The mounting cover 700 is used to position the output shaft 600. In this embodiment, the output shaft 600 is positioned by an independent mounting cover 700 to ensure the concentricity of the rotating shaft 300 and the output shaft 600. The mounting cover 700 can also limit the movement of the output shaft 600 toward the rotating shaft 300. The mounting cover 700 can be positioned between the rotating shaft 300 and the output shaft 600 to separate the rotating shaft 300 and the output shaft 600.

[0043] Furthermore, a first bearing 810 is fixed on the mounting cover 700, and the end of the output shaft 600 close to the mounting cover 700 is connected to the first bearing 810, which can not only ensure the smooth rotation of the output shaft 600, but also limit the position of the output shaft 600 through the first bearing 810 and the mounting cover 700, so that it can be kept in an ideal position for rotation.

[0044] In this embodiment, a first placement groove 710 may be provided on the mounting cover 700 , and the outer ring of the first bearing 810 may be fixed in the first placement groove 710 , while the inner ring of the first bearing 810 is sleeved on the output shaft 600 .

[0045] Furthermore, a second bearing 820 is fixed in the accommodating groove 412, and the end of the output shaft 600 away from the mounting cover 610 is connected to the second bearing 820. In this embodiment, the output shaft 600 is positioned by two bearings, which ensures the smooth rotation of the output shaft 600 while also ensuring the concentricity of the rotating shaft 300 and the output shaft 600.

[0046] In this embodiment, the outer ring of the second bearing 820 can be fixed in the receiving groove 412 , and the inner ring of the second bearing 820 is sleeved on the output shaft 600 .

[0047] In some embodiments, as Figure 3-6 As shown, the transmission member 500 further includes a central shaft 530, which is coaxially connected to the first gear 510 and the second gear 520, so that the first gear 510 and the second gear 520 can be linked. The first gear 510 and the second gear 520 can be specifically sleeved on the central shaft 530, and the ends of the central shaft 530 can pass through the first gear 510 and the second gear 520 respectively.

[0048] Furthermore, a third bearing 830 is fixed on the rear end cover 420 , and one end of the center shaft 530 close to the rear end cover 420 is connected to the third bearing 830 , which can not only ensure the smooth rotation of the center shaft 530 , but also limit the movement of the transmission member 500 toward the side of the rear end cover 420 .

[0049] In the embodiment, the rear end cover 420 can be provided with a third placing groove 422, and the outer ring of the third bearing 830 can be clamped in the third placing groove 422, and the inner ring of the third bearing 830 is sleeved on the central shaft 530.

[0050] Furthermore, the fourth bearing 840 is fixed on the front end cover 410, and the end of the central shaft 530 close to the front end cover 410 is connected with the fourth bearing 840, so that the central shaft 530 can be positioned by the two bearings, and the central shaft 530 can keep its position and rotate smoothly.

[0051] In the embodiment, the front end cover 410 can be provided with a fourth placing groove 413, and the outer ring of the fourth bearing 840 can be clamped in the fourth placing groove 413, and the inner ring of the fourth bearing 840 is sleeved on the central shaft 530.

[0052] The motor of the utility model can be widely applied to the polishing machine or other technical fields. The polishing machine is also called grinding machine, and is often used for mechanical grinding, polishing and waxing. The motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed. Since the polishing disc and the polishing agent jointly act and rub with the surface to be polished, the purpose of removing paint surface pollution, oxidation layer and shallow marks can be achieved.

[0053] The terms and words used in the above description and claims are not limited by the literal meaning, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is only for illustration, not for limiting the utility model as defined by the appended claims and their equivalents.

Claims

1. A motor designed as a whole with a reduction gearbox, characterized by: It includes a motor housing, a stator assembly, a rotor assembly, a rotating shaft, an end cover assembly, a transmission member and an output shaft; the stator assembly and the rotor assembly are both arranged in the motor housing, and the rotating shaft is connected to the rotor assembly; the end cover assembly is fixedly connected to the motor housing and covers the opening of the motor housing, the interior of the end cover assembly is provided with a accommodating cavity, and the surface of the end cover assembly is provided with an opening connected to the accommodating cavity; the transmission member is arranged in the accommodating cavity, the rotating shaft extends into the accommodating cavity and is connected to the transmission member, the transmission member is connected to the output shaft for transmitting driving force to the output shaft, and the output shaft extends from the opening; the rotating shaft and the output shaft are coaxially arranged.

2. The motor integrated with the reduction gearbox according to claim 1, characterized in that: The transmission member includes a first gear and a second gear coaxially connected, the rotating shaft is provided with external teeth adapted to the first gear, and the external teeth of the rotating shaft are engaged with the first gear; the output shaft is coaxially connected with a third gear, and the third gear is engaged with the second gear.

3. The motor integrated with the reduction gearbox according to claim 2, characterized in that: The end cover assembly includes a front end cover and a rear end cover, the rear end cover is fixedly connected to the motor housing and covers the opening of the motor housing, the front end cover is fixed to the outside of the rear end cover, the front end cover and the rear end cover are enclosed to form a accommodating cavity, and the opening is set on the front end cover.

4. The motor integrated with the reduction gearbox according to claim 3, characterized in that: The inner side surface of the front end cover is provided with a receiving groove, and the output shaft and the third gear are both located in the receiving groove. The inner side surface of the front end cover is also fixed with a mounting cover, and the mounting cover is used to position the output shaft.

5. The motor integrated with the reduction gearbox according to claim 4, characterized in that: A first bearing is fixed on the mounting cover, and one end of the output shaft close to the mounting cover is connected to the first bearing.

6. The motor integrated with the reduction gearbox according to claim 5, characterized in that: A second bearing is fixed in the accommodating groove, and one end of the output shaft away from the mounting cover is connected to the second bearing.

7. The motor integrated with the reduction gearbox according to claim 3, characterized in that: The transmission member further includes a central shaft, and the central shaft is coaxially connected to the first gear and the second gear.

8. The motor integrated with the reduction gearbox according to claim 7, characterized in that: A third bearing is fixed on the rear end cover, and one end of the central shaft close to the rear end cover is connected to the third bearing.

9. The motor integrated with the reduction gearbox according to claim 8, characterized in that: A fourth bearing is fixed on the front end cover, and one end of the central shaft close to the front end cover is connected to the fourth bearing.

Images