A drive device

Abstract

The utility model relates to motor technical field, concretely relates to a kind of driving device, it includes hollowly arranged drive shell, stator and rotating shaft are built-in in drive shell, stator is fixedly connected in drive shell, rotating shaft penetrates stator and is rotatably connected with stator, rotating shaft is fixedly connected with magnetic ring, magnetic ring is coaxially sleeved in the outer contour of stator, electromagnetic drive structure is formed, rotating shaft extends to the outside of drive shell;Speed reduction mechanism, including hollowly arranged speed reduction shell, first planet carrier is rotatably connected in speed reduction shell, first sun gear and first planetary gear are built-in in first planet carrier, first sun gear is detachably connected with the protruding portion of rotating shaft, first planetary gear is respectively engaged in the outer circumferential side of first sun gear and speed reduction shell, speed reduction shell is detachably connected with drive shell, the overall or partial assembly of the speed reduction mechanism of the application is replaced with the driving mechanism adaptation, greatly improve the flexibility and convenience of equipment adaptation different transmission ratio demand.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a drive device. Background Technology

[0002] In the current field of mechanical transmission technology, many drive device designs commonly employ an integrated architecture where the drive and reduction gear housings are combined. While this integrated design simplifies the overall structure, reduces assembly difficulty, and improves the stability of some performance aspects to some extent, it also introduces significant technical limitations. Due to the fixed and integral nature of the housing structure, it is difficult to flexibly configure reduction mechanisms with different transmission ratios to meet the diverse needs of different application scenarios. This results in insufficient adaptability and flexibility for the equipment when dealing with complex working conditions and meeting varying production efficiency or power output requirements, limiting its application and development in a wider range of fields. Utility Model Content

[0003] The purpose of this invention is to provide a drive device to solve the problem that it is difficult to configure reduction mechanisms with different transmission ratios in existing drive devices.

[0004] The technical solution of this utility model is: a driving device, comprising: a driving mechanism, including a hollow driving housing, wherein a stator and a rotating shaft are built into the driving housing, the stator is fixedly connected to the driving housing, the rotating shaft passes through the stator and is rotatably connected to the stator, a magnetic ring is fixedly connected to the rotating shaft, the magnetic ring is coaxially sleeved on the outer contour of the stator to form an electromagnetic driving structure, and the rotating shaft extends to the outside of the driving housing;

[0005] The deceleration mechanism includes a hollow deceleration housing, a first planetary carrier rotatably connected to the deceleration housing, a first sun gear and a first planetary gear housed inside the first planetary carrier, the first sun gear being detachably connected to a protruding part of a rotating shaft, the first planetary gears respectively meshing with the outer periphery of the first sun gear and the deceleration housing, and the deceleration housing being detachably connected to a drive housing.

[0006] Preferably, the drive housing and the reduction housing are detachably connected by bolts distributed circumferentially, and the first sun gear and the first planetary gear are connected along a first direction key.

[0007] Preferably, a retainer is fixed at the end of the rotating shaft away from the deceleration mechanism, and a plurality of magnets are fixed on the retainer and evenly distributed along the circumference, and the plurality of magnets are coaxially sleeved on the outer contour of the stator.

[0008] Preferably, the stator comprises a sensing part and a support part fixedly connected along a first direction, the support part of the stator is threadedly connected to the drive housing, and the magnet and the magnetic ring are both sleeved on the outer contour of the support part.

[0009] Preferably, a steel ring is detachably connected inside the deceleration housing. The steel ring and the deceleration housing are fixedly connected by a limiting structure. The limiting structure includes a limiting groove and a limiting rod that cooperate with each other. The axis of the limiting rod is inserted into the limiting hole formed by the limiting groove in the radial or axial direction.

[0010] Preferably, a drive shaft is fixedly provided at the output end of the first planetary carrier, and a second sun gear is detachably connected to the drive shaft. A plurality of second planet gears are meshed on the outer periphery of the second sun gear, and each second planet gear meshes with the steel ring simultaneously. A second planetary carrier is rotatably connected inside the steel ring, and the second sun gear and the second planet gears are built into the second planetary carrier. The second planetary carrier is used to output power.

[0011] Preferably, the axis of the first sun gear, the axis of the second sun gear, and the axis of the rotating shaft are coaxial.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] By designing the drive housing and the reduction housing as detachable connections, it is possible to easily replace the entire reduction mechanism or some of its components with a suitable reduction mechanism when different transmission ratios are required. At the same time, the shaft and the first sun gear are detachable, so when a reduction mechanism with a different transmission ratio is replaced, the drive mechanism can be quickly matched with the new reduction mechanism without making complex modifications to the drive mechanism, which greatly improves the flexibility and convenience of the equipment to adapt to different transmission ratio requirements. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of a driving device according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a driving device according to the present invention.

[0017] Figure 3 This is an exploded structural diagram of the drive mechanism described in this utility model;

[0018] Figure 4 This is an exploded structural diagram of the deceleration mechanism described in this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Drive mechanism; 11. Rotating shaft; 12. Stator; 121. First hole; 122. Sensing part; 123. Support part; 13. Drive housing; 14. Cage; 15. Magnet; 16. Magnetic ring; 2. Reduction mechanism; 21. Reduction housing; 23. Steel ring; 231. Limiting groove; 232. Limiting rod; 24. First sun gear; 25. First planet gear; 26. First planet carrier; 261. First clearance hole; 262. Drive shaft; 31. Second sun gear; 32. Second planet gear; 33. Second planet carrier; 331. Second clearance hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1 As shown, a driving device includes a driving mechanism 1 and a reduction mechanism 2. The reduction mechanism 2 is detachably connected to the output end of the driving mechanism 1 to configure the driving mechanism 1 with different transmission ratios.

[0025] like Figure 2 and Figure 3As shown, the drive mechanism 1 includes a stator 12, a rotating shaft 11, and a drive housing 13. The stator 12 has a first hole 121 extending through it along a first direction. The rotating shaft 11 is rotatably connected to the stator 12 along the first direction. Specifically, both ends of the rotating shaft 11 extend out of the stator 12. The stator 12 consists of a sensing part 122 and a support part 123 fixedly connected along the first direction. The sensing part 122 is a hollow cylindrical structure, and the support part 123 is a hollow disk-shaped structure. That is, the first hole 121 penetrates both the cylindrical and disk-shaped structures. The drive housing 13 has a thin-walled hollow structure inside. The drive housing 13 is arranged along the first direction and opens towards the end face of the reduction mechanism 2. The stator 12 is built into the drive housing 13, and the outer edge of the support part 123 of the stator 12 fits against the inner wall of the drive housing 13. Preferably, the support part 123 of the stator 12 and the drive housing 13 are connected by bolts.

[0026] A retainer 14 is fixedly connected to the end of the rotating shaft 11 away from the reduction mechanism 2. The retainer 14 is disc-shaped and parallel to the support portion 123. Several magnets 15 are fixedly mounted on the retainer 14. The magnets 15 are located on the end face of the retainer 14 near the stator 12, and the magnets 15 are arranged in a circumferential array on the edge of the end face. The magnets 15 and the outer contour of the stator 12 maintain a predetermined air gap. A magnetic ring 16 is sleeved on the magnets 15. One end of the magnetic ring 16 is fixed to the retainer 14 and coaxially sleeved on the outside of the sensing portion 122. The end of the rotating shaft 11 away from the retainer 14 extends out of the drive housing 13 for transmission connection to the reduction mechanism 2. The magnet 15 and the magnetic ring 16 constitute the magnetic field of the rotor. When the induction part 122 of the stator 12 is energized, a rotating magnetic field is generated. The permanent magnet formed by the magnet 15 and the magnetic ring 16 interacts with the magnetic field of the stator 12, pushing the cage 14 to drive the rotating shaft 11 to rotate. The end of the rotating shaft 11 away from the cage 14 extends out of the drive housing 13 and is directly connected to the reduction mechanism 2, transmitting the rotational power to the reduction mechanism 2.

[0027] like Figure 4 As shown, the reduction mechanism 2 includes a reduction housing 21, a first planetary carrier 26, and a steel ring 23. The reduction housing 21 is a hollow structure and extends through the housing in a first direction. One end of the reduction housing 21 is detachably connected to the drive housing 13. Specifically, the reduction housing 21 and the drive housing 13 are detachably connected by bolts distributed circumferentially. The first planetary carrier 26 is rotatably connected to the interior of the reduction housing 21, and the steel ring 23 is fixedly connected to the interior of the reduction housing 21, with the steel ring 23 positioned between the first planetary carrier 26 and the reduction housing 21. Preferably, both the steel ring 23 and the reduction housing 21 have recessed limiting grooves 231, which together form a limiting hole. A limiting rod 232 is movably inserted into the limiting hole to restrict the movement of the steel ring 23 relative to the reduction housing 21, while also facilitating the installation and removal of the steel ring 23.

[0028] A first sun gear 24 is connected to a rotating shaft 11. Preferably, the first sun gear 24 is keyed to the rotating shaft 11, and the first sun gear 24 rotates coaxially with the rotating shaft 11. A plurality of first planet gears 25 are rotatably connected to a first planet carrier 26, and the plurality of first planet gears 25 mesh with the outer periphery of the first sun gear 24. A plurality of first clearance holes 261 are provided on the side wall of the first planet carrier 26, and the plurality of first clearance holes 261 are connected at the center of the first planet carrier 26. The first sun gear 24 and the plurality of first planet gears 25 are all rotatably connected to the first planet carrier 26, and a portion of the first planet gears 25 extends out of the first clearance holes 261. Preferably, the first planet gears 25 and the first clearance holes 261 correspond one-to-one.

[0029] The inner wall of the steel ring 23 is equipped with internal gears, and several first planetary gears 25 mesh with the steel ring 23. The shaft 11 of the drive mechanism 1 drives the first sun gear 24 to rotate at high speed. While the first sun gear 24 drives the surrounding first planetary gears 25 to rotate around the first sun gear 24, the first planetary gears 25 also rotate on their own axes. The first planetary gears 25 are forced to rotate relative to the steel ring 23, thereby driving the first planetary carrier 26 to rotate at a reduced speed. The first planetary carrier 26, as the output end, transmits high torque and low speed power to the load.

[0030] A drive shaft 262 is fixedly mounted on the end of the first planetary carrier 26 away from the drive mechanism 1. The drive shaft 262 is detachably connected to a second sun gear 31. Preferably, the drive shaft 262 and the second sun gear 31 are keyed together. The second sun gear 31 rotates coaxially with the drive shaft 262, and the axis of the first sun gear 24 and the axis of the second sun gear 31 are coaxial. A plurality of second planet gears 32 are meshed on the outer periphery of the second sun gear 31, and the second planet gears 32 mesh with the steel ring 23. A second planetary carrier 33 is also provided inside the steel ring 23. The second planetary carrier 33 has a plurality of second clearance holes 331, which are connected in the center of the second planetary carrier 33. The second sun gear 31 and the plurality of second planet gears 32 are rotatably connected inside the second planetary carrier 33. Parts of the second planet gears 32 extend out of the second clearance holes 331, that is, the extended parts of the second planet gears 32 mesh with the inner wall of the steel ring 23. Preferably, the second planetary gear 32 corresponds one-to-one with the second clearance hole 331, and the second planetary carrier 33 is rotatably connected to the end face of the reduction housing 21.

[0031] The first planetary carrier 26 transmits the power after the first stage of reduction to the second sun gear 31. The second sun gear 31 drives the second-stage planetary gears to rotate around it. At the same time, the second sun gear 31 meshes with the internal teeth of the steel ring 23 to rotate, realizing the second stage of reduction. The second planetary carrier 33, as the output end, transmits the high-torque, low-speed power after the second stage of reduction to the load.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A drive device characterized by comprising: include: The drive mechanism (1) includes a hollow drive housing (13), in which a stator (12) and a rotating shaft (11) are built. The stator (12) is fixedly connected to the drive housing (13), and the rotating shaft (11) passes through the stator (12) and is rotatably connected to the stator (12). A magnetic ring (16) is fixedly connected to the rotating shaft (11), and the magnetic ring (16) is coaxially sleeved on the outer contour of the stator (12) to form an electromagnetic drive structure. The rotating shaft (11) extends to the outside of the drive housing (13). The deceleration mechanism (2) includes a hollow deceleration housing (21), which is rotatably connected to a first planetary carrier (26). The first planetary carrier (26) houses a first sun gear (24) and a first planetary gear (25). The first sun gear (24) is detachably connected to the protruding part of the rotating shaft (11). The first planetary gear (25) meshes with the outer periphery of the first sun gear (24) and the deceleration housing (21), respectively. The deceleration housing (21) is detachably connected to the drive housing (13).

2. A drive device according to claim 1, characterized in that: The drive housing (13) and the reduction housing (21) are detachably connected by bolts distributed along the circumference, and the first sun gear (24) and the first planet gear (25) are connected along the first direction key.

3. A drive device according to claim 2, characterized in that: A retainer (14) is fixed at one end of the rotating shaft (11) away from the deceleration mechanism (2). A plurality of magnets (15) are fixed on the retainer (14) and are evenly distributed along the circumference. The plurality of magnets (15) are coaxially sleeved on the outer contour of the stator (12).

4. A drive device according to claim 3, characterized in that: The stator (12) consists of a sensing part (122) and a support part (123) fixedly connected along a first direction. The support part (123) of the stator (12) and the drive housing (13) are threadedly connected. The magnet (15) and the magnetic ring (16) are both sleeved on the outer contour of the support part (123).

5. The drive apparatus according to claim 1, characterized by: The deceleration housing (21) is detachably connected to a steel ring (23). The steel ring (23) and the deceleration housing (21) are fixedly connected by a limiting structure. The limiting structure includes a limiting groove (231) and a limiting rod (232) that cooperate with each other. The axis of the limiting rod (232) is inserted into the limiting hole formed by the limiting groove (231) in the radial or axial direction.

6. A drive device according to claim 5, characterized in that: The first planetary carrier (26) has a drive shaft (262) fixed at its output end. The drive shaft (262) is detachably connected to a second sun gear (31). Several second planet gears (32) are meshed on the outer periphery of the second sun gear (31). Each second planet gear (32) meshes with the steel ring (23). A second planetary carrier (33) is rotatably connected inside the steel ring (23). The second sun gear (31) and the second planet gears (32) are built into the second planetary carrier (33). The second planetary carrier (33) is used to output power.

7. A drive arrangement according to claim 6, characterised in that: The axis of the first sun gear (24), the axis of the second sun gear (31), and the axis of the rotating shaft (11) are coaxial.

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