Novel reduction motor

Abstract

The utility model discloses a novel speed reducer motor realizes miniaturization, light weight and integration, and it includes motor, speed reducer, first bolt and second bolt, the motor includes first casing and motor shaft, the output end surface of first casing is square, and the first perforation is established in all the four corner positions, the speed reducer includes connecting plate, second casing, output shaft and planetary gear, the output end surface shape of connecting plate and first casing is same and is equipped with the first screw hole opposite first perforation, the inner chamber of second casing is equipped with the inner tooth ring, and the end surface facing connecting plate is equipped with a plurality of second screw holes, and connecting plate is equipped with the second perforation opposite second screw hole, the output shaft is rotatably matched in second casing, the planetary gear is rotatably installed in the circumferential surface of inside end portion of output shaft and is driven connection with inner tooth ring and motor shaft simultaneously, first bolt passes through second perforation and is connected with second screw hole threadedly, second bolt passes through first perforation and is connected with first screw hole threadedly, and first casing covers first bolt.

Description

Technical Field

[0001] This utility model belongs to the field of geared motor technology, and specifically refers to a new type of geared motor. Background Technology

[0002] A geared motor is typically an integrated unit of a speed reducer and a motor, also known as a geared motor or geared motor. Geared motors are generally used to achieve low-speed, high-torque transmission, converting the relatively small torque output by the electric motor into a larger torque through a speed reducer.

[0003] Most existing geared motors directly mount the reducer to the output end of the motor, and the housings of both are connected and fixed together by bolts or other means. However, motors and reducers from different manufacturers have different specifications for output and input keys, and users must understand the relevant information to make the appropriate selection. At the same time, this connection method results in a relatively long overall length of the geared motor, occupying a large space, making it unsuitable for space-constrained scenarios. Utility Model Content

[0004] The main purpose of this utility model is to provide a new type of geared motor, solve the problems existing in the prior art, achieve miniaturization, lightweighting and integration, and improve the market competitiveness of the product.

[0005] To achieve the above objectives, the solution of this utility model is: A novel geared motor includes a motor, a reducer, and a plurality of first bolts and second bolts. The motor includes a first housing and a motor shaft disposed on the axis of the first housing. The output end face of the first housing is square, with first through holes at each of its four corners. The reducer includes a connecting plate, a second housing, an output shaft, and planetary gears. The connecting plate has the same shape as the output end face of the first housing and is provided with first threaded holes opposite to the first through holes. An internal gear ring is disposed in the inner cavity of the second housing, and a plurality of second threaded holes are provided on its end face facing the connecting plate. The connecting plate is provided with second through holes opposite to the second threaded holes. The output shaft is rotatably fitted inside the second housing. The planetary gears are disposed on the circumferential surface of the inner end of the output shaft and are rotatably fitted with the output shaft. The planetary gears are simultaneously connected to the internal gear ring and the motor shaft. The first bolts pass through the second through holes and are threadedly connected to the second threaded holes. The second bolts pass through the first through holes and are threadedly connected to the first threaded holes. The output end face of the first housing covers the first bolts.

[0006] The motor is a servo motor.

[0007] The motor shaft is configured as a worm gear, the planetary gears are worm wheels, and the convex teeth of the internal gear ring match the convex teeth of the worm wheel.

[0008] The first housing is provided with a clearance groove extending along the axial direction of the motor shaft at the position corresponding to the first perforation.

[0009] The second housing is a cylinder coaxially arranged with the motor shaft. Its end face facing away from the motor has a shaft hole through which the output shaft passes. A sealing ring cover through which the output shaft passes is installed at the shaft hole.

[0010] The outer end of the output shaft is a connecting part for connecting to the device driven by the geared motor, and its inner end is a mounting part for mounting the planetary gear. The front and rear sides of the mounting part are respectively fitted with a first bearing and a second bearing; the first bearing is arranged opposite to the shaft hole; the second bearing is fitted between the first step on the end face of the connecting plate and the second step on the end face of the second housing.

[0011] Preferably, the mounting part is configured as a hollow structure, with a plurality of through mounting slots between its outer and inner walls, the planetary gears being rotatably fitted into the corresponding mounting slots, and the axis of the planetary gears being parallel to the axis of the output shaft.

[0012] Preferably, the planetary gears are arranged at equal angular intervals around the axis of the output shaft.

[0013] Preferably, a first sealing ring and a second sealing ring are respectively provided between the output end face of the first housing and the connecting plate, and between the connecting plate and the second housing.

[0014] After adopting the above technical solution, the present invention has the following technical effects: (1) Eliminate the adapter shaft between the motor and the reducer, and directly connect the motor shaft of the motor to the planetary gear of the reducer. This shortens the transmission path between the motor and the reducer, resulting in higher transmission efficiency, more stable transmission, and a longer service life for the product.

[0015] (2) Eliminate the inherent motor disc between the motor and the reducer, and directly connect the motor and the reducer through the adapter plate, thereby shortening the overall length of the motor and reducer, reducing the overall space required for installation, and achieving miniaturization.

[0016] (3) This allows products to be assembled directly by the same manufacturer, so that users can use them directly after purchase without further assembly, thus improving the user experience.

[0017] (4) The locking design between the first housing, the connecting plate and the second housing of this utility model allows the reducer to be removed independently of the motor after the adapter shaft, the clamping ring, the motor disc and other parts are removed. Then the connecting plate can be disassembled to replace the adapter shaft, the planetary gear and other parts, which is more flexible. Attached Figure Description

[0018] Figure 1 This is a perspective view of a specific embodiment of the present utility model.

[0019] Figure 2 Breakdown of specific embodiments of this utility model Figure 1 .

[0020] Figure 3 Breakdown of specific embodiments of this utility model Figure 2 .

[0021] Figure 4 This is a cross-sectional view of a specific embodiment of the present utility model.

[0022] Figure 5 This is a disassembly and assembly diagram of a specific embodiment of the present utility model.

[0023] Explanation of icon numbers: 10-Motor; 11-First housing; 111-First through hole; 112-Second bolt; 12-Motor shaft; 20-Reducer; 21-Connecting plate; 211-First threaded hole; 212-Second through hole; 22-Second housing; 221-Internal gear ring; 222-Second threaded hole; 223-Shaft hole; 23-Output shaft; 231-Mounting part; 232-Mounting through groove; 24-Planetary gear; 25-Sealing ring cover; 26-First bearing; 27-Second bearing; 30 - First bolt; 40 - Second bolt; 50 - First sealing ring; 60 - Second sealing ring. Detailed Implementation

[0024] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0025] refer to Figures 1 to 5 As shown, this utility model discloses a novel geared motor, including a motor 10, a reducer 20, and a plurality of first bolts 30 and second bolts 40; The motor 10 includes a first housing 11 and a motor shaft 12 disposed on the axis of the first housing 11; the output end face of the first housing 11 is square, and a first through hole 111 is provided at each of its four corners; The reducer 20 includes a connecting plate 21, a second housing 22, an output shaft 23, and planetary gears 24. The connecting plate 21 has the same shape as the output end face of the first housing 11 and is provided with a first screw hole 211 opposite to the first through hole 111. The inner cavity of the second housing 22 is provided with an internal gear ring 221, and its end face facing the connecting plate 21 is provided with a plurality of second screw holes 222. The connecting plate 21 is provided with a second through hole 212 opposite to the second screw holes 222. The output shaft 23 is rotatably fitted inside the second housing 22. The planetary gears 24 are provided on the circumferential surface of the inner end of the output shaft 23 and are rotatably fitted with the output shaft 23. The planetary gears 24 are also connected to the internal gear ring 221 and the motor shaft 12 for transmission. The first bolt 30 passes through the second through hole 212 and is threaded into the second screw hole 222; The second bolt 40 passes through the first through hole 111 and is threaded into the first screw hole 211, and the output end face of the first housing 11 covers the first bolt 30.

[0026] Through the above solution, this utility model eliminates the adapter shaft between the motor 10 and the reducer 20, directly connecting the motor shaft 12 of the motor 10 to the planetary gears 24 of the reducer 20. This shortens the transmission path between the motor 10 and the reducer 20, resulting in higher transmission efficiency, more stable transmission, and a longer product lifespan. Eliminating the inherent motor disc between the motor 10 and the reducer 20, and directly connecting them via the adapter plate 21, shortens the overall length of the motor 10 and reducer 20, reducing the overall space required for installation and achieving miniaturization. This structure allows the product to be directly assembled at the same manufacturer, enabling users to use it immediately after purchase without further assembly, thus improving the user experience. Furthermore, the locking design between the first housing 11, the connecting plate 21, and the second housing 22 allows the reducer 20 to be independently removed from the motor 10 even after eliminating components such as the adapter shaft, clamping ring, and motor disc. The connecting plate 21 can then be disassembled to replace components such as the adapter shaft 23 and the planetary gears 24, providing greater flexibility.

[0027] The following are specific embodiments of the present invention.

[0028] The aforementioned motor 10 can be a servo motor, which can achieve more precise and stable power output.

[0029] The motor shaft 12 is configured as a worm, the planetary gear 24 is a worm wheel, and the convex teeth of the internal gear ring 221 match the convex teeth of the worm wheel.

[0030] The first housing 11 is provided with a relief groove 112 extending along the axial direction of the motor shaft 12 at the position corresponding to the first through hole 111. This avoids the need for the second bolt 40 and makes it convenient to use a screwdriver or other tools to tighten the second bolt 40 in a straight direction.

[0031] The second housing 22 is a cylinder coaxially arranged with the motor shaft 12. Its end face facing away from the motor 10 is provided with a shaft hole 223 through which the output shaft 23 passes. A sealing ring cover 25 through which the output shaft 23 passes is installed at the shaft hole 223.

[0032] Furthermore, the outer end of the aforementioned output shaft 23 is a connecting part for connecting to the device driven by the geared motor, and its inner end is a mounting part 231 for mounting the planetary gear 24. A first bearing 26 and a second bearing 27 are respectively fitted onto the front and rear sides of the mounting part 231. The first bearing 26 is positioned opposite to the shaft hole 223; the second bearing 27 is fitted between the first step 213 on the end face of the connecting plate 21 and the second step 224 on the end face of the second housing 22. Thus, the first bearing 26 and the second bearing 27 also serve to provide auxiliary sealing for the joint between the shaft hole 223, the connecting plate 21, and the second housing 22.

[0033] Secondly, the aforementioned mounting part 231 is configured as a hollow structure, with a plurality of through mounting slots 232 provided between its outer and inner walls. The planetary gears 24 are rotatably fitted within the corresponding mounting slots 232, and the axes of the planetary gears 24 are parallel to the axis of the output shaft 23. In this embodiment, the aforementioned planetary gears 24 are arranged at equal angular intervals around the axis of the output shaft 23.

[0034] Meanwhile, a first sealing ring 50 and a second sealing ring 60 are respectively provided between the output end face of the first housing 11 and the connecting plate 21, and between the connecting plate 21 and the second housing 22, so as to achieve the effect of sealing and preventing oil leakage.

[0035] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A novel geared motor, characterized in that: Includes a motor, a speed reducer, and several first bolts and second bolts; The motor includes a first housing and a motor shaft disposed on the axis of the first housing; the output end face of the first housing is square, and each of its four corners is provided with a first through hole; The reducer includes a connecting plate, a second housing, an output shaft, and planetary gears. The connecting plate has the same shape as the output end face of the first housing and is provided with a first threaded hole opposite to the first through hole. An internal gear ring is provided in the inner cavity of the second housing, and its end face facing the connecting plate is provided with a plurality of second threaded holes. The connecting plate is provided with a second through hole opposite to the second threaded holes. The output shaft is rotatably fitted inside the second housing. The planetary gears are disposed on the circumferential surface of the inner end of the output shaft and are rotatably fitted with the output shaft. The planetary gears are also connected to the internal gear ring and the motor shaft for transmission. The first bolt passes through the second through hole and is threaded into the second screw hole; The second bolt passes through the first through hole and is threaded into the first screw hole, and the output end face of the first housing covers the first bolt.

2. The novel geared motor as described in claim 1, characterized in that: The motor is a servo motor.

3. The novel geared motor as described in claim 1, characterized in that: The motor shaft is configured as a worm gear, the planetary gears are worm wheels, and the convex teeth of the internal gear ring match the convex teeth of the worm wheel.

4. The novel geared motor as described in claim 1, characterized in that: The first housing is provided with a clearance groove extending along the axial direction of the motor shaft at the position corresponding to the first perforation.

5. The novel geared motor as described in claim 1, characterized in that: The second housing is a cylinder coaxially arranged with the motor shaft. Its end face facing away from the motor has a shaft hole through which the output shaft passes. A sealing ring cover through which the output shaft passes is installed at the shaft hole.

6. The novel geared motor as described in claim 5, characterized in that: The outer end of the output shaft is a connecting part for connecting to the device driven by the geared motor, and its inner end is a mounting part for mounting the planetary gear. The front and rear sides of the mounting part are respectively fitted with a first bearing and a second bearing; the first bearing is arranged opposite to the shaft hole; the second bearing is fitted between the first step on the end face of the connecting plate and the second step on the end face of the second housing.

7. The novel geared motor as described in claim 6, characterized in that: The mounting part is configured as a hollow structure, with several through mounting slots between its outer and inner walls. The planetary gears are rotatably fitted into the corresponding mounting slots, and the axes of the planetary gears are parallel to the axis of the output shaft.

8. The novel geared motor as described in claim 7, characterized in that: The planetary gears are arranged at equal angular intervals around the axis of the output shaft.

9. The novel geared motor as described in claim 6, characterized in that: A first sealing ring and a second sealing ring are respectively provided between the output end face of the first housing and the connecting plate, and between the connecting plate and the second housing.

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