CN211655923U - Integrated driving device and equipment driven by motor - Google Patents

Integrated driving device and equipment driven by motor Download PDF

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Publication number
CN211655923U
CN211655923U CN201921519116.0U CN201921519116U CN211655923U CN 211655923 U CN211655923 U CN 211655923U CN 201921519116 U CN201921519116 U CN 201921519116U CN 211655923 U CN211655923 U CN 211655923U
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China
Prior art keywords
rotor
transmission
gear
shaft
input shaft
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Active
Application number
CN201921519116.0U
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Chinese (zh)
Inventor
文比强
尹华治
许剑
郑鹏翱
葛春波
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Hunan High Precision Special Motor Equipment Co ltd
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Hunan High Precision Special Motor Equipment Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The utility model belongs to the technical field of motor drive, and discloses an integrated driving device and equipment adopting the driving device, which comprises a driving motor and a transmission matched with the driving motor, wherein the driving motor and the transmission are coaxially arranged; the shaft of the driving motor and the transmission is a hollow shaft with a containing space, and a load is arranged in the hollow shaft; the driving motor rotor is provided with a rotor gear; the transmission is provided with an input shaft and an output shaft, the input shaft is connected with the rotating self-gear, and the output shaft is connected with a load in the hollow shaft. The driving device is structurally optimized and designed on the basis of the existing mature gear speed change technology, an input shaft of a transmission is designed into a hollow shaft, the radial size of a driving motor is enlarged, enough optimized space is reserved for a hollow shaft of a rotor, the driving device is perfectly butted with the hollow shaft of the transmission, and the problem of the central space layout of a special mechanical structure is solved.

Description

Integrated driving device and equipment driven by motor
Technical Field
The utility model relates to a motor drive technical field specifically, relates to an integrated form variable speed drive.
Background
When traditional motor and speed reducer are used in a matched manner, the motor shaft of the motor stretches into the speed reducer, and the gear is sleeved at the tail end of the motor shaft to be matched with the transmission mechanism in the speed reducer for transmission, so that torque is transmitted to the output shaft finally. Although the traditional matching mode can achieve the purpose of torque transmission, the overall structure is large, the space utilization rate of the motor and the speed reducer is low, and the overall structure is influenced by an overlarge driving device in equipment such as ships and submarines with compact space structure requirements. In the torque transmission process, the problems of high noise and vibration and high power loss exist simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that the structure that prior art exists is too big, power output is not high, provide an integrated form drive arrangement, compact structure, space utilization is high, and the noise is little, vibrates for a short time, and output thrust is big.
The purpose of the utility model is realized through the following technical scheme:
an integrated driving device comprises a driving motor and a speed changer matched with the driving motor, wherein the driving motor and the speed changer are coaxially arranged; the shaft of the driving motor and the shaft of the transmission are hollow shafts with accommodating spaces, and loads are arranged in the hollow shafts; the driving motor rotor is provided with a rotor gear; the transmission is provided with an input shaft and an output shaft, the input shaft is connected with the rotor gear, and the output shaft is connected with a load in the hollow shaft.
Further, the driving motor comprises a stator arranged inside and a rotor arranged outside, a gear is arranged on the outer ring of the rotor, the transmission input shaft is hollow, an inner ring gear is arranged on the inner wall of the transmission input shaft, the inner ring gear of the transmission input shaft is meshed with the outer ring gear of the driving motor rotor, and the middle of the stator of the driving motor is hollow.
Further, the driving motor comprises a rotor arranged inside and a stator arranged outside the rotor, the rotor is hollow, and an inner gear ring is arranged inside the rotor; the outer ring gear is arranged on the outer wall of the input shaft of the speed changer, the inner gear ring of the rotor is meshed with the outer ring gear of the input shaft of the speed changer, and the input shaft of the speed changer is hollow.
Further, the driving motor and the permanent magnet synchronous motor.
Further, the drive motor is provided at an end portion or an intermediate position in a radial direction of the transmission.
Furthermore, the transmission comprises a box body arranged outside, an inner gear ring is arranged on the inner wall of the box body, and a planet wheel meshed with the inner gear ring in the box body and a sun wheel for rotating the planet wheel are arranged in the box body.
Further, the transmission is a spur transmission.
Further, the driving device is also provided with a controller for controlling the rotating speed.
Further, the power device of the movement device is arranged in the hollow shaft of the integrated driving device.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the driving device is structurally optimized and designed on the basis of the existing mature gear speed change technology, the input shaft of the transmission is designed into the hollow shaft, the radial size of the driving motor is enlarged, enough optimized space is reserved for the hollow shaft of the rotor, the hollow shaft of the transmission is perfectly butted, the problem of central space layout of a special mechanical structure is solved, the driving motor and the reducer are effectively integrated, the hollow input shaft of the transmission and the inner space of the hollow shaft of the driving motor can be used for placing or installing loads, the space is fully utilized, the whole structure of the driving device is compact, the space is saved for other parts of equipment, and the requirement of special equipment is met.
2) The motor shaft of the driving motor is a hollow shaft, which is equivalent to a shaftless structure, and the defects of vibration and noise during the operation of the traditional motor shaft can be effectively avoided.
3) And a load is arranged in the output shaft, so that the torque and the thrust are larger under the condition of the same motor output power.
Drawings
FIG. 1 is a schematic view of the transmission input shaft coupled to a hollow shaft of an outer rotor drive motor;
FIG. 2 is a view of the structure of the external gear of the rotor of the driving motor;
FIG. 3 is a view of the motor rotor external gear ring in cooperation with a transmission input shaft gear;
FIG. 4 is a schematic view of the transmission input shaft coupled to the hollow shaft of the inner rotor drive motor;
FIG. 5 is a view of the construction of the internal gear of the rotor of the driving motor;
fig. 6 is a two-stage reduction gear structure diagram.
Detailed Description
The invention will be further described with reference to specific embodiments, wherein the drawings are designed solely for the purpose of illustration and not as a definition of the limits of the patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
An integrated driving device, as shown in fig. 1-3, includes a driving motor 1 and a transmission 2, where the driving motor 1 is a permanent magnet synchronous motor and includes a rotor 11 and a stator 12. The rotor 11 is arranged on the outer ring of the stator 12 and rotates around the stator 12, the inner wall of the rotor 11 is adhered with a permanent magnet, and the outer wall of the rotor 11 is provided with a rotor outer side gear 111. The stator 12 has stator windings on the outer ring and a hollow shaft 121 inside. The transmission 2 comprises a transmission input shaft 21 and a transmission output shaft 22, the transmission input shaft 21 is provided with an input shaft inner gear ring 211, the input shaft inner gear ring 211 is meshed with the driving motor rotor outer side gear 111, and the input shaft is driven by the driving motor rotor 11 to rotate. The transmission output shaft 22 is hollow, and an output shaft ring gear 221 is arranged in the transmission output shaft. The driving motor stator 12 and the transmission output shaft 22 are coaxially arranged, hollow spaces of the driving motor stator and the transmission output shaft are connected into a whole to form a hollow shaft 3 of the integrated driving device together, a load is arranged in the hollow shaft 3, and the load is meshed with an inner gear ring 221 of the transmission output shaft to output torque to the load. The input shaft 21 and the output shaft 22 of the transmission 2 are connected by adopting a planetary gear or straight teeth to realize the purpose of speed change, and the speed change can be realized by adopting the existing transmission principle. The output shaft 22 may not have a ring gear, and the load is welded in the hollow shaft of the output shaft 22.
As shown in fig. 1, the transmission input shaft 21 is connected with a sun gear 23, the sun gear 23 is connected with a plurality of planet gears 25, the transmission housing 24 is provided with an annular gear which is meshed with the planet gears 25, the planet gears 25 revolve between the sun gear 23 and the transmission housing 24, the planet gears 25 are connected with a planet carrier 26, the planet gears 25 drive the planet carrier 26 to rotate when revolving, the planet carrier 16 is connected with the transmission output shaft 22, and the planet carrier 26 rotates to drive the output shaft 22 to rotate.
Depending on the ratio of the gear change, a multi-stage planetary reduction gear may also be used. As shown in fig. 6, the transmission input shaft 21 is connected with a primary sun gear 23, the primary sun gear 23 is connected with a plurality of primary planet gears 25, the transmission housing 24 is provided with an annular gear, the primary planet gears 25 revolve between the primary sun gear 23 and the transmission housing 24, the primary planet gears 25 are connected with a primary planet carrier 26, the primary planet gears 25 drive the primary planet carrier 26 to rotate when revolving, the primary planet carrier 26 is connected with a secondary sun gear 27, the secondary sun gear 27 is connected with a secondary planet gear 28, the secondary planet gear 28 is connected with a secondary planet carrier 29, the secondary planet carrier 29 is connected with the output shaft 22, and the secondary planet carrier 29 drives the output.
Example 2
As shown in fig. 4 to 5, the present embodiment is different from embodiment 1 in that: the stator 12 is arranged on the outer ring of the rotor 11, and the rotor 11 rotates in the stator 12; the outer wall of the rotor 11 is adhered with a permanent magnet, the center of the rotor 11 is a hollow shaft 113, and the inner wall is provided with a rotor inner gear ring 112. The transmission 2 comprises a transmission input shaft 21 and a transmission output shaft 22, an input shaft coupling gear 212 is arranged on the outer wall of the transmission input shaft 21, the center of the input shaft 21 is hollow, the input shaft 21 is inserted into a hollow shaft 113 of the driving motor rotor 11, the coupling gear 212 is meshed with the rotor inner gear ring 112, and the transmission is driven to rotate by the driving motor rotor 11. The transmission output shaft 22 is hollow, and an output shaft ring gear 221 is arranged in the transmission output shaft. The output shaft 22 and the input shaft 21 are coaxially arranged, hollow spaces in the centers of the output shaft and the input shaft are connected into a whole to form a hollow shaft 3 of the integrated driving device, and a load is arranged in the hollow shaft. The motor in the embodiment also comprises other structures such as other bearings and the like, and can be realized by adopting the prior art.
In the transmission configuration, a one-stage planetary gear reduction as shown in fig. 4 and a two-stage reduction as shown in fig. 5 may also be employed.
An accelerator may also be used as required for shifting.
The embodiment 1 and the embodiment 2 both adopt the planetary gear transmission, and other embodiments also adopt the straight-tooth transmission, and the same technical effects can be produced.
Example 3
The present embodiment is different from embodiment 2 in that an electromagnetic dc motor is used, and the electromagnetic dc motor includes a stator magnetic pole, a rotor (armature), a commutator (commonly referred to as a commutator), a brush, a bearing, and the like. The center of the rotor is hollow, the inner wall of the rotor is provided with an inner gear ring, and the inner gear ring is used for being connected with an input shaft gear of the transmission.
Other motors improve the axle of rotor or stator, set up to behind the hollow shaft, equally can reach the technical effect of the utility model.
Example 4
A propeller blade of the underwater propeller is arranged in a hollow shaft 3, and outputs axial torque to the blade to drive a ship to run. Adopt the utility model discloses a propeller simulates in aqueous, the motor of the same power, and thrust can reach 2.5 times of traditional motor drive screw, and the moment of torsion can reach 2.7 times of traditional motor drive screw.
It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. An integrated driving device is characterized by comprising a driving motor and a speed changer matched with the driving motor, wherein the driving motor and the speed changer are coaxially arranged; the shaft of the driving motor and the shaft of the transmission are hollow shafts with accommodating spaces, and loads are arranged in the hollow shafts; the driving motor rotor is provided with a rotor gear; the speed changer is provided with an input shaft and an output shaft, the input shaft is connected with the rotor gear, and the output shaft is connected with a load.
2. The integrated drive of claim 1, wherein the drive motor comprises an internally disposed stator and an externally disposed rotor, the rotor outer ring is provided with a gear, the transmission input shaft is hollow, the transmission input shaft inner wall is provided with an inner ring gear, the transmission input shaft inner ring gear is engaged with the drive motor rotor outer ring gear, and the drive motor stator is hollow in the middle.
3. The integrated driving device according to claim 1, wherein the driving motor comprises a rotor disposed inside and a stator disposed outside the rotor, the rotor is hollow inside, and an inner gear ring is disposed inside the rotor; the outer ring gear is arranged on the outer wall of the input shaft of the speed changer, the inner gear ring of the rotor is meshed with the outer ring gear of the input shaft of the speed changer, and the input shaft of the speed changer is hollow.
4. The integrated drive of any of claims 2-3, wherein the drive motor is a permanent magnet synchronous motor.
5. The integrated drive of claim 4, wherein the drive motor is disposed at a radial end or an intermediate position of the transmission.
6. The integrated drive device according to claim 5, wherein the transmission comprises an externally disposed housing, an inner wall of the housing is provided with an inner gear ring, and the housing is provided with planet gears engaged with the inner gear ring of the housing and a sun gear for rotation of the planet gears.
7. The integrated drive of claim 5, wherein the transmission is a spur-tooth transmission.
8. The integrated drive of claim 1, wherein the drive is further provided with a controller for controlling the rotational speed.
9. Equipment driven by a motor, characterized in that, the integrated driving device of any one of claims 1-8 is used, and the power device of the moving device is arranged in the hollow shaft of the integrated driving device.
CN201921519116.0U 2019-07-26 2019-09-12 Integrated driving device and equipment driven by motor Active CN211655923U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201921201327X 2019-07-26
CN201921201327 2019-07-26

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CN211655923U true CN211655923U (en) 2020-10-09

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CN201910863365.XA Pending CN110611399A (en) 2019-07-26 2019-09-12 Integrated variable-speed driving device and equipment driven by motor
CN201921519116.0U Active CN211655923U (en) 2019-07-26 2019-09-12 Integrated driving device and equipment driven by motor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201910863365.XA Pending CN110611399A (en) 2019-07-26 2019-09-12 Integrated variable-speed driving device and equipment driven by motor

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111516002A (en) * 2020-06-23 2020-08-11 北京哈崎机器人科技有限公司 Joint unit and joint module of robot and foot type robot with joint unit and joint module

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