CN216971667U

CN216971667U - Speed-reducing forced driving motor with planetary gear

Info

Publication number: CN216971667U
Application number: CN202220146892.6U
Authority: CN
Inventors: 王子旺; 李冬
Original assignee: Ceg Motor Suzhou Co ltd
Current assignee: Ceg Motor Suzhou Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-15
Anticipated expiration: 2032-01-19

Abstract

The utility model provides a speed-reducing forced driving motor with a planetary gear, which comprises a planetary gear speed reduction box, a permanent magnet synchronous motor, a traction sheave roller and a machine base; the planetary gear reduction box is arranged in the traction sheave roller, and the output shaft of the planetary gear reduction box is in driving connection with the traction sheave roller; the two ends of the traction sheave roller are respectively provided with a front traction sheave cover and a rear traction sheave cover, and the inner rings of the front traction sheave cover and the rear traction sheave cover are fixed on the engine base through bearings; the input shaft of the planetary gear reduction box is rigidly connected with the motor shaft of the permanent magnet synchronous motor arranged on one side of the base, the utility model has the advantages of silence, small installation size, large torque range and small self volume, and can also provide a better scheme for flexible layout of the whole elevator hoistway, namely hoistway pit installation, hoistway top installation and small machine room installation.

Description

Speed-reducing forced driving motor with planetary gear

Technical Field

The utility model relates to a driving motor, in particular to a speed-reducing forced driving motor with a planetary gear.

Background

In the traditional permanent magnet synchronous traction machine, a permanent magnet synchronous motor directly drives a traction sheave loading steel wire rope to drive an elevator to go up and down without a speed reducer. Generally, the traction apparatus is installed in a machine room above a top floor or in an elevator shaft. The structure has the advantages of easy assembly, convenient adjustment and mature technology. The structure has the defects that the torque is increased due to no reduction gearbox, the torque is low, the permanent magnet synchronous tractor is often required to be wound and installed according to the traction ratio of 2: 1, and the cost is too high when the permanent magnet synchronous tractor is installed according to the traction ratio of 1: 1, so that the installation and the use of the permanent magnet synchronous tractor have certain limitations. In addition, the existing permanent magnet synchronous traction machine has the problem that various elevator driving problems such as forced driving without counterweight and the like cannot be caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a speed-reducing forced driving motor with a planetary gear, which has the advantages of silence, small installation size, large torque range and small self volume, and can also provide a better scheme for flexible layout of the whole elevator shaft, namely shaft pit installation, shaft top installation and small machine room installation.

The utility model provides the following technical scheme:

a speed reduction forced driving motor with a planetary gear comprises a planetary gear reduction box, a permanent magnet synchronous motor, a traction wheel roller and a base; the planetary gear reduction box is arranged in the traction sheave roller, and an output shaft of the planetary gear reduction box is in driving connection with the traction sheave roller; the two ends of the traction wheel roller are respectively provided with a front traction wheel cover and a rear traction wheel cover, and the inner rings of the front traction wheel cover and the rear traction wheel cover are fixed on the engine base through bearings; an input shaft of the planetary gear reduction box is rigidly connected with a motor shaft of a permanent magnet synchronous motor arranged on one side of the base.

Preferably, the braking device further comprises a disc brake, wherein the disc brake is installed on an end cover of the permanent magnet synchronous motor on the side far away from the traction sheave roller through stud screws and is used for braking a motor shaft of the permanent magnet synchronous motor.

Preferably, the traction sheave roller is internally provided with a connecting rib sleeve sleeved outside the output shaft of the planetary gear reduction gearbox, and the connecting rib sleeve is in key connection with the output shaft of the planetary gear reduction gearbox for driving.

Preferably, one end of the base is fixed with a reducer connecting plate for positioning and connecting with the planetary gear reducer, the other end of the base is connected with a rear end cover, and the two groups of bearings are correspondingly assembled outside a shaft ring of the rear end cover and a ring of the reducer connecting plate and are used for supporting a traction wheel roller of the reducer connecting plate.

Preferably, protective covers for protecting the traction sheave drum are disposed at both sides of the machine base.

Preferably, the machine base is also provided with a rope blocking rod for preventing the steel wire rope from jumping.

Preferably, the traction sheave roller, the permanent magnet synchronous motor shaft, the planetary gear reduction gearbox output shaft and the planetary gear reduction gearbox input shaft are arranged concentrically.

The utility model has the beneficial effects that:

1. the speed-reducing forced driving motor with the planetary gear has the characteristics of large output torque, high transmission efficiency and low output rotating speed;

2. the planetary gear reduction box is arranged in the traction wheel roller, so that the space of the whole machine can be reduced, the size of the whole machine is smaller, the weight is lighter, the stability is better, and the whole machine has the advantages of low noise and small vibration.

3. The support mode that the bearings are arranged on the inner rings of the front traction sheave cover and the rear traction sheave cover at the two ends of the traction sheave roller and are fixed on the machine base to support the traction sheave roller is adopted, so that the stability is better during working.

4. Due to the fact that the planetary gear reduction box is used, the risk of oil leakage can be reduced compared with a traditional gearbox.

5. Because the planetary gear reduction box is used, the input shaft and the output shaft are in a concentric state, and compared with the traditional forced driving traction machine, the forced driving traction machine has the characteristics of small volume, easy layout and good maintenance.

6. Can force the drive to the car, need not to arrange to counter weight, save the well space, both be fit for driving the elevator field by force, also be fit for ordinary elevator field.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural cross-sectional view of the present invention;

notation in the figure: 1. a permanent magnet synchronous motor; 2. a machine base; 3. a disc brake; 4. a traction sheave drum; 5. a planetary gear reduction gearbox; 6. a motor shaft; 7. an output shaft; 8. an input shaft; 9. connecting the rib sleeves; 10. a reducer connecting plate; 11. a rear end cap; 12. a front traction wheel cover; 13. and a rear traction wheel cover.

Detailed Description

With reference to fig. 1 to 2, the reduction forced driving motor with planetary gear includes a planetary gear reduction box 5, a permanent magnet synchronous motor 1, a traction sheave drum 4 and a machine base 2; the planetary gear reduction box 5 is arranged in the traction sheave roller 4, and an output shaft 7 of the planetary gear reduction box is in driving connection with the traction sheave roller; the two ends of the traction sheave roller 4 are respectively provided with a front traction sheave cover 12 and a rear traction sheave cover 13, and the inner rings of the front traction sheave cover 12 and the rear traction sheave cover 13 are fixed on the machine base 2 through bearings; an input shaft 8 of the planetary gear reduction box 5 is rigidly connected with a motor shaft 6 of the permanent magnet synchronous motor 1 arranged on one side of the base 2.

In this embodiment, the deceleration forced driving motor with the planetary gear further comprises a disc brake 3, and the disc brake 3 is installed on an end cover of the permanent magnet synchronous motor 1 on the side far away from the traction sheave roller 4 through stud screws and is used for braking a motor shaft 6 of the permanent magnet synchronous motor 1.

The inside of the traction sheave cylinder is provided with a connecting rib sleeve 9 which is sleeved outside an output shaft 7 of the planetary gear reduction box 5, and the connecting rib sleeve 9 is connected with the output shaft 7 of the planetary gear reduction box 5 through a key for driving.

One end of the machine base 2 is fixed with a reducer connecting plate 10 which is used for positioning and connecting with the planetary gear reducer box 5, the other end of the machine base is connected with a rear end cover 11, and two groups of bearings are correspondingly assembled outside a shaft ring of the rear end cover 11 and a ring of the reducer connecting plate 10 and are used for supporting the traction wheel roller 4.

Protective covers for protecting the traction sheave roller 4 are arranged on both sides of the machine base 2.

The machine base 2 is also provided with a rope blocking rod for preventing the steel wire rope from jumping.

The traction sheave roller 4, the motor shaft 6 of the permanent magnet synchronous motor 1, the output shaft 7 of the planetary gear reduction box 5 and the input shaft 8 of the planetary gear reduction box are concentrically arranged.

The working principle of the utility model is as follows: through placing the planetary gear reduction box 5 in the traction sheave cylinder 4 in, thereby can reduce the space of complete machine, make the complete machine volume less, light in weight, and the stationarity is better, thereby make the complete machine have the noise low, the little advantage of vibration, and after the PMSM 1 drives the input shaft 8 of planetary gear reduction box 5 rotatory through its motor shaft 6, power transmits behind the output shaft 7 of planetary gear reduction box 5, and then through the cooperation of its above-mentioned and the inside connection muscle cover 9 of traction sheave cylinder, thereby realized the rotation of traction sheave cylinder 4, and realize supporting fixedly by the bearing of assembly on frame 2 at both ends at traction sheave cylinder 4 itself, therefore stability is also better.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed reduction forced driving motor with a planetary gear is characterized by comprising a planetary gear reduction box, a permanent magnet synchronous motor, a traction sheave roller and a base;

the planetary gear reduction box is arranged in the traction sheave roller, and the output shaft of the planetary gear reduction box is in driving connection with the traction sheave roller;

the two ends of the traction wheel roller are respectively provided with a front traction wheel cover and a rear traction wheel cover, and the inner rings of the front traction wheel cover and the rear traction wheel cover are fixed on the machine base through bearings;

and an input shaft of the planetary gear reduction box is rigidly connected with a motor shaft of a permanent magnet synchronous motor arranged on one side of the base.

2. The deceleration forced driving motor with the planetary gear according to claim 1, further comprising a disc brake, wherein the disc brake is installed on an end cover of the permanent magnet synchronous motor on the side far away from the traction sheave roller through stud screws and is used for braking a motor shaft of the permanent magnet synchronous motor.

3. The motor of claim 1, wherein the traction sheave drum is provided with a connecting rib sleeve which is sleeved outside the output shaft of the planetary gear reduction gearbox, and the connecting rib sleeve is connected with the output shaft of the planetary gear reduction gearbox through a key for driving.

4. A forced driving motor with planetary gear reduction according to claim 3, characterized in that one end of the base is fixed with a reducer connecting plate for positioning and connecting the planetary gear reduction box, and the other end is connected with a rear end cover, two sets of bearings are correspondingly assembled outside a shaft ring of the rear end cover and a ring of the reducer connecting plate and are used for supporting the traction sheave roller.

5. A reduction-force driving motor with planetary gears according to claim 1, characterized in that protective covers for protecting the traction sheave drum are arranged on both sides of the machine base.

6. The deceleration forced driving motor with the planetary gear according to claim 1, wherein the machine base is further provided with a rope blocking lever for preventing the wire rope from jumping.

7. The belt planetary gear deceleration forced drive motor of claim 1, wherein the traction sheave drum, the permanent magnet synchronous motor shaft, the planetary gear reduction gearbox output shaft and the planetary gear reduction gearbox input shaft are concentrically arranged.