A reduction motor with an easily assembled shaft core

Abstract

This utility model relates to the field of motor technology, and discloses a geared motor with an easily assembled shaft core. It includes a gearbox housing, a gearbox cover, an output shaft, a planetary carrier, planetary gears, an internal gear ring, a helical gear, and two bearings. The output shaft passes through the gearbox, with bearings connected to its front and rear ends, and the planetary carrier and helical gear connected to its middle section. The output shaft is fixedly connected to the planetary carrier. The output shaft has an internal mounting hole for installing the shaft core. The inner wall of the upper end of the mounting hole has an internal hexagonal structure, and the inner wall of the lower end has a circular hole structure. A nut for fastening the shaft core is located at the upper end of the output shaft. The outer wall surface of the upper end of the shaft core has external threads, and the nut is screwed to the upper end of the shaft core. This geared motor prevents slippage between the equipment shaft core and the motor output shaft by setting the upper center of the geared motor to an internal hexagonal structure; by setting external threads at the top of the equipment shaft core, installation only requires installing the nut at the top, improving work efficiency; the shaft core directly passes through the motor output shaft, resulting in uniform force distribution and improving the efficiency and service life of the geared motor.

Description

Technical Field

[0001] This utility model relates to the field of geared motor technology, and in particular to a geared motor that is easy to assemble with a shaft core. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine.

[0003] Reference Figure 4 The following problems may occur when assembling the shaft of existing geared motors: a. When assembling and disassembling, screw 11 is tightened from the side, which is inconvenient to use tools, resulting in low work efficiency; b. During assembly, the geared motor obstructs the view, making it difficult to align the shaft with the hole and causing misalignment. C. The small contact area between the motor shaft and the mounting hole on the equipment easily leads to uneven force distribution due to eccentricity, which affects the motor assembly efficiency and lifespan. Therefore, there is an urgent need for a geared motor that facilitates shaft assembly to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a geared motor with an easy-to-assemble shaft core, so as to solve the technical problem of low assembly efficiency of existing gearboxes, which affects the installation efficiency of the motor.

[0005] This utility model discloses a geared motor with an easily assembled shaft core, comprising a gearbox housing, a gearbox cover, an output shaft, a planetary carrier, planetary gears, an internal gear ring, a helical gear, and two bearings disposed inside the gearbox housing and the gearbox cover. The output shaft passes through the gearbox, with bearings connected to its front and rear ends respectively, and the planetary carrier and helical gear connected to its middle section. The planetary gears are disposed within the internal gear ring, and the planetary carrier and helical gear are disposed on both sides of the internal gear ring. The sun gear in the middle of the helical gear meshes with the external teeth of the planetary gears. The planetary carrier is connected to the middle of the planetary gears, and the external teeth of the helical gear mesh with the external thread at the front end of the motor rotor. The output shaft is fixedly connected to the planetary carrier. The output shaft has an internal mounting hole for mounting the shaft core. The inner wall of the upper end of the mounting hole is a hexagonal internal structure, and the inner wall of the lower end is a circular hole structure. A nut for fastening the shaft core is provided at the upper end of the output shaft, and the outer wall surface of the upper end of the shaft core is provided with an external thread. The nut is screwed to the upper end of the shaft core.

[0006] Preferably, the outer side of the output shaft is provided with a mounting surface, and the mounting hole in the middle of the planetary carrier is provided with a limiting surface adapted to the mounting surface. The cross-section of the mounting surface and the limiting surface is square.

[0007] Preferably, the gearbox cover has a groove for placing nuts.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This geared motor, which facilitates the assembly of the shaft core, mainly includes a gearbox housing, a gearbox cover, an output shaft, a planetary carrier, planetary gears, an internal gear ring, a helical gear, and two bearings. The output shaft runs through the interior of the gearbox and is used to drive the rotation of external equipment, providing power to the external equipment. A mounting hole is provided inside the output shaft to drive the shaft core of the equipment to rotate. By setting the upper end of the mounting hole to an internal hexagonal structure and the lower end to a round hole structure, slippage between the equipment shaft core and the output shaft of the geared motor is prevented, achieving a stable installation. A nut is provided at the upper end of the output shaft to lock the upper end of the shaft core, facilitating the connection between the output shaft and the shaft core. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the split structure of a geared motor according to an embodiment of the present invention, which is easy to assemble the shaft core; Figure 2 This is a side view of an embodiment of a geared motor that facilitates the assembly of the shaft core according to this utility model; Figure 3 yes Figure 2 A schematic diagram of the cross-section of CC; Figure 4 This is a schematic diagram of the existing geared motor and equipment shaft.

[0010] In the diagram: 1. Gearbox housing; 2. Gearbox top cover; 21. Groove; 3. Output shaft; 31. Mounting hole; 32. Mounting surface; 4. Planetary carrier; 41. Limiting surface; 5. Planetary gear; 6. Internal gear ring; 7. Helical gear; 71. Sun gear; 8. Bearing; 9. Shaft core; 10. Nut; 11. Screw. Detailed Implementation

[0011] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0012] like Figure 1-3As shown, this utility model discloses a geared motor with an easy-to-assemble shaft core, comprising a gearbox housing 1, a gearbox cover 2, an output shaft 3 disposed inside the gearbox housing 1 and the gearbox cover 2, a planetary carrier 4, planetary gears 5, an internal gear ring 6, a helical gear 7, and two bearings 8. The output shaft 3 passes through the gearbox, with the bearings 8 connected to its front and rear ends respectively, and the planetary carrier 4 and the helical gear 7 connected in the middle. The planetary gears 5 are disposed inside the internal gear ring 6, and the planetary carrier 4 and the helical gear 7 are disposed on both sides of the internal gear ring 6. The helical gear 7 is located in the middle of the... The sun gear 71 meshes with the external teeth of the planet gear 5. The planet carrier 4 is connected to the middle of the planet gear 5. The external teeth of the helical gear 7 mesh with the external thread at the front end of the motor rotor. The output shaft 3 is fixedly connected to the planet carrier 4. The inside of the output shaft 3 is provided with a mounting hole 31 for mounting the shaft core 9. The inner wall of the upper end of the mounting hole 31 is set as an internal hexagonal structure, and the inner wall of the lower end is set as a round hole structure. The upper end of the output shaft 3 is provided with a nut 10 for fastening the shaft core 9. The outer wall surface of the upper end of the shaft core 9 is provided with an external thread, and the nut 10 is screwed to the upper end of the shaft core 9.

[0013] This utility model discloses a geared motor with an easily assembled shaft core, mainly comprising a housing structure consisting of a gearbox outer shell 1 and a gearbox upper cover 2, and a drive mechanism disposed inside the housing, specifically comprising an output shaft 3, a planetary carrier 4, planetary gears 5, an internal gear ring 6, a helical gear 7, and two bearings 8. The output shaft 3 penetrates the interior of the gearbox and is used to drive external equipment to rotate, providing power to the external equipment. The planetary carrier 4, planetary gears 5, internal gear ring 6, and helical gear 7 are interconnected, driving the output shaft 3 to rotate. The internal gear ring 6 is fixedly mounted on the gearbox upper cover 2, the planetary gears 5 are mounted inside the internal gear ring 6, the planetary carrier 4 and the helical gear 7 are respectively mounted on the left and right sides of the internal gear ring 6, the planetary carrier 4 is connected to the planetary gears 5, the planetary gears 5 are connected to the sun gear 71 in the middle of the helical gear 7, and the helical gear 7... The helical teeth on the outer wall mesh with the external threads on the motor rotor. Therefore, when the motor rotor rotates, it drives the helical gear 7 to rotate. The sun gear 71 in the middle of the helical gear 7 drives the planet gear 5 and the planet carrier 4 to rotate in the internal gear ring 6, which in turn drives the output shaft 3 in the middle to rotate, thus achieving the effect of transmitting power. The output shaft 3 is provided with a mounting hole 31 inside for mounting the shaft core 9 of the ice maker. The output shaft 3 is used to drive the shaft core 9 to rotate. The upper end of the mounting hole 31 is set as a polygon, preferably hexagonal, but it can also be set as quadrilateral or pentagonal, etc., and the lower end is set as a round hole to prevent slippage between the shaft core 9 and the output shaft 3 of the geared motor, thus achieving the effect of stable installation. A nut 10 is set on the upper end of the output shaft 3 to lock the upper end of the shaft core 9, which facilitates the connection between the output shaft 3 and the shaft core 9.

[0014] In a preferred embodiment, refer to Figure 1-3The output shaft 3 of the geared motor, which facilitates the assembly of the shaft core, has a mounting surface 32 on its outer side. A limiting surface 41, adapted to the mounting surface, is located in the mounting hole in the middle of the planetary carrier 4. The mounting surface 32 and the limiting surface 41 have square cross-sections. The middle part of the output shaft 3 is fixed to the limiting surface 41 of the planetary carrier 4. The mounting surface 32 is designed as a square structure to prevent the output shaft 3 from moving after installation. A groove 21 for placing the nut 10 is provided on the upper cover 2 of the gearbox, ensuring that the nut locks the output shaft 3 and the shaft core 9 above the gearbox, facilitating installation and disassembly and improving assembly efficiency.

[0015] The geared motor of this utility model, which facilitates the assembly of the shaft core, also has the following characteristics: 1. The center of the output shaft of the geared motor is set as a through hole structure and matches with the shaft core 9 on the equipment. This makes it easy to observe and facilitates assembly. The upper end of the through hole is set as an internal hexagonal structure to prevent slippage between the equipment shaft core 9 and the motor output shaft 3. 2. By setting an external thread at the top of the shaft core 9, when locking the shaft core 9 and the output shaft 3, only the nut 10 needs to be installed on top, which improves work efficiency; 3. Since the equipment shaft core can directly pass through the motor output shaft 3, the force between the motor shaft and the equipment shaft core 9 is evenly distributed, which improves the efficiency and service life of the geared motor.

[0016] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A reduction motor facilitating assembly of a shaft core, characterized by: The device includes a gearbox housing, a gearbox cover, an output shaft, a planetary carrier, planetary gears, an internal gear ring, a helical gear, and two bearings located inside the gearbox housing and cover. The output shaft passes through the gearbox, with bearings connected to its front and rear ends, and the planetary carrier and helical gear connected to its middle section. The planetary gears are located inside the internal gear ring, and the planetary carrier and helical gear are located on both sides of the internal gear ring. The sun gear in the middle of the helical gear meshes with the external teeth of the planetary gears. The planetary carrier is connected to the middle of the planetary gears. The external teeth of the helical gear mesh with the external thread at the front end of the motor rotor. The output shaft is fixedly connected to the planetary carrier. The output shaft has a mounting hole for mounting a shaft core inside. The inner wall of the upper end of the mounting hole has an internal hexagonal structure, and the inner wall of the lower end has a round hole structure. A nut for fastening the shaft core is located at the upper end of the output shaft. The outer wall surface of the upper end of the shaft core has an external thread, and the nut is screwed to the upper end of the shaft core.

2. The reduction motor with an easily assembled shaft core according to claim 1, wherein The output shaft has a mounting surface on its outer side, and the planetary carrier has a limiting surface in the mounting hole in the middle that is adapted to the mounting surface. The mounting surface and the limiting surface have square cross-sections.

3. The reduction motor with an easily assembled shaft core according to claim 1, wherein The gearbox cover has a groove for placing nuts.

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