CN212559039U

CN212559039U - Asynchronous gearless steel belt traction machine

Info

Publication number: CN212559039U
Application number: CN202021116486.2U
Authority: CN
Inventors: 林云发
Original assignee: Huzhou Mengna Drive Technology Co ltd
Current assignee: Huzhou Mengna Drive Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-19
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to an asynchronous gearless steel band hauler, including frame, asynchronous machine, driving sheave, encoder and stopper, the driving sheave rotates and sets up in the frame, and asynchronous machine is fixed to be set up in the frame and to be located the one end of driving sheave, and the stopper is located the one end that asynchronous machine was kept away from to the driving sheave and installs in the frame, and asynchronous machine is provided with the drive shaft, and the driving sheave cooperates with drive shaft circumference linkage, the driving sheave sets up a plurality of driving groove along its axial interval, and two adjacent driving grooves separate the setting through annular baffle, and annular baffle's both sides are equipped with the arc concave surface respectively. By adopting the above scheme, the utility model overcomes the not enough of prior art existence provides an asynchronous gearless steel band hauler, and it does not use the permanent magnet that contains rare earth material, and the cost is lower, no magnetism moves back the risk to the volume is littleer, has reduced installation space.

Description

Asynchronous gearless steel belt traction machine

Technical Field

The utility model belongs to the technical field of the hauler technique in the elevator and specifically relates to an asynchronous gearless steel band hauler.

Background

An elevator traction machine is a traction power device of an elevator, and the function of the traction power device is to transmit and transmit power to operate the elevator. The existing elevator traction machine comprises a frame, a motor, a traction sheave, a reduction gearbox and a brake, wherein a steel wire rope is connected with an elevator through one end of the traction sheave, the other end of the steel wire rope is connected with a counterweight device, the steel wire rope is tightly pressed in a traction groove of the traction sheave to generate friction force through the gravity of the elevator and the counterweight device, and the motor drives the traction sheave to rotate through the reduction gearbox to drive the steel wire rope to drag the elevator and the counterweight to move relatively. The elevator reciprocates up and down along guide rails in a hoistway.

The motor drives the traction sheave through the reduction gearbox, so the whole volume is large, the installation space is increased, and the traction sheave is dragged through the steel wire rope, so the precision of the traction sheave is low, the jumping is large, and the noise is large.

If the motor is of a permanent magnet synchronous structure, the permanent magnet containing rare earth materials is used, the cost is high, the pollution is serious, and the risk of high-temperature demagnetization of the permanent magnet exists.

Disclosure of Invention

The utility model overcomes prior art's is not enough, provides an asynchronous gearless steel band hauler, and it does not use the permanent magnet that contains rare earth material, and the cost is lower, no magnetism moves back the risk to the volume is littleer, has reduced installation space.

In order to realize the purpose, the utility model discloses a technical scheme is: the asynchronous gearless steel belt traction machine comprises a rack, an asynchronous motor, traction sheaves, an encoder and a brake, wherein the traction sheaves are rotatably arranged on the rack, the asynchronous motor is fixedly arranged on the rack and is positioned at one end of the traction sheaves, the brake is positioned at one end of the traction sheaves, which is far away from the asynchronous motor, and is arranged on the rack, the asynchronous motor is provided with a driving shaft, the traction sheaves are in circumferential linkage fit with the driving shaft, the traction sheaves are axially provided with a plurality of traction grooves at intervals, two adjacent traction grooves are separated by an annular partition plate, and arc-shaped concave surfaces are respectively arranged on two sides of the annular partition plate.

By adopting the scheme, the asynchronous motor and the gearless box are adopted, the asynchronous motor and the brake are respectively arranged on two sides of the traction wheel, the whole traction machine is reasonable in layout design, the whole volume is smaller, the installation space is reduced, the shape of the traction groove is matched with that of the steel belt, the abrasion of the steel belt and two side walls of the traction groove can be reduced due to the arrangement of the arc concave surface, the traction steel belt is more stable, the traction steel belt does not use a permanent magnet containing rare earth materials, the cost is lower, and no magnetic return risk exists.

The utility model discloses a further setting is: asynchronous machine includes shell, apron, rotor and stator, and the shell is fixed to be set up in the frame, is equipped with the installation cavity in the shell, and the stator is fixed to be set up in the installation cavity of shell, and the stator overcoat is in the rotor, and the cover of rotor linkage is established on the drive shaft, and the apron covers the installation cavity and with shell fixed connection, and the apron is equipped with the through-hole in the department that corresponds the drive shaft, and the encoder setting is in through-hole department.

By adopting the above scheme, each part can be assembled in a split manner, the assembly and disassembly are convenient, the encoder is stably installed, the encoder has a speed feedback function, the speed can be conveniently regulated, the structure is simple, and the design is reasonable.

The utility model discloses a further setting is: the brake is a double armature shaft brake disc brake, and one side of the brake is also connected with a manual brake release device.

By adopting the above-mentioned solution, the brake plays a role of limiting the rotation of the traction sheave, the manual brake release device can be operated manually, and the brake and the manual brake release device are conventional in the art and thus are not described in detail herein.

The utility model discloses a further setting is: and a wear-resistant coating is arranged on the traction surface of the traction groove.

By adopting the scheme, the traction surface of the traction groove is more wear-resistant, and the service life is prolonged.

The utility model discloses a further setting is: the stator is composed of a stator core and an enameled copper wire, and the rotor is a cast aluminum rotor.

By adopting the scheme, the stator current is directly taken from an alternating current power system, and compared with other motors, the asynchronous motor has the advantages of simple structure, convenience in manufacturing, using and maintaining, high operation reliability, light weight and low cost.

The utility model discloses a further setting is: the traction sheave and the driving shaft are integrally arranged, and two sides of the traction sheave are rotatably arranged on the rack through bearings respectively.

Through adopting above-mentioned scheme, the driving sheave sets up with drive shaft is integrative, simplifies the assembly to intensity is higher, and the rotation of driving sheave is more stable.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a first overall structure of the present invention;

fig. 2 is a second overall structural schematic diagram of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

FIG. 4 is a schematic view showing a structure of a traction sheave and a rotor;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a schematic structural view of a traction sheave;

fig. 7 is a schematic structural diagram of the cover plate.

Detailed Description

As shown in fig. 1-7, an asynchronous gearless steel belt traction machine is characterized in that: the traction mechanism comprises a rack 1, an asynchronous motor 2, a traction sheave 3, an encoder 4 and a brake 5, wherein two ends of the traction sheave 3 are rotatably arranged on the rack 1 through bearings 6 respectively, the asynchronous motor 2 is fixedly arranged on the rack 1 and is positioned at one end of the traction sheave, the brake 5 is positioned at one end of the traction sheave 3 far away from the asynchronous motor 2 and is arranged on the rack 1, the asynchronous motor 2 is provided with a driving shaft 7, a traction sheave 3 is arranged at the end of the driving shaft 7, the traction sheave 3 and the driving shaft 7 are fixedly connected in a split mode, the traction sheave 3 is provided with a plurality of traction grooves 31 at intervals along the axial direction of the traction sheave, a wear-resistant coating is arranged on a traction surface 311 of each traction groove 31, two adjacent traction grooves 31 are arranged at intervals through an annular partition plate 32, and arc-shaped concave surfaces 321.

In this embodiment, the asynchronous motor 2 includes a housing 21, a cover plate 22, a rotor 23 and a stator 24, the housing 21 is fixedly disposed on the frame 1, a mounting cavity 211 is disposed in the housing 21, the stator 24 is fixedly disposed in the mounting cavity 211 of the housing 21, the stator 24 is externally sleeved on the rotor 23, the rotor 23 is connected with the driving shaft 7 in a linkage manner through a tight fit sleeve, the cover plate 22 covers the mounting cavity 211 and is fixedly connected with the housing 21, the cover plate 22 is provided with a through hole 221 at a position corresponding to the driving shaft 7, and the encoder 4 is disposed at the through hole 221.

In this embodiment, the brake 5 is a double armature shaft brake disc brake, and a manual brake release device 8 is further connected to one side of the brake 5. The brake serves to restrict the rotation of the traction sheave, the manual brake release device is manually operated, and the brake and the manual brake release device are conventional in the art and thus are not described in detail herein.

In the present embodiment, the stator 24 is composed of a stator core and an enameled copper wire, and the rotor 23 is a cast aluminum rotor.

The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The asynchronous gearless steel belt traction machine is characterized in that: the traction sheave comprises a rack, an asynchronous motor, traction sheaves, an encoder and a brake, wherein the traction sheave is rotatably arranged on the rack, the asynchronous motor is fixedly arranged on the rack and is positioned at one end of the traction sheave, the brake is positioned at one end of the traction sheave, which is far away from the asynchronous motor, and is arranged on the rack, the asynchronous motor is provided with a driving shaft, the traction sheave is in circumferential linkage fit with the driving shaft, the traction sheave is provided with a plurality of traction grooves at intervals along the axial direction of the traction sheave, two adjacent traction grooves are separated by an annular partition plate, and arc-shaped concave surfaces are respectively arranged on two sides of the annular partition plate.

2. The asynchronous gearless steel belt traction machine according to claim 1, is characterized in that: asynchronous machine includes shell, apron, rotor and stator, and the shell is fixed to be set up in the frame, is equipped with the installation cavity in the shell, and the stator is fixed to be set up in the installation cavity of shell, and the stator overcoat is in the rotor, and the cover of rotor linkage is established on the drive shaft, and the apron covers the installation cavity and with shell fixed connection, and the apron is equipped with the through-hole in the department that corresponds the drive shaft, and the encoder setting is in through-hole department.

3. The asynchronous gearless steel belt traction machine according to claim 1 or 2, wherein: the brake is a double armature shaft brake disc brake, and one side of the brake is also connected with a manual brake release device.

4. The asynchronous gearless steel belt traction machine according to claim 1 or 2, wherein: and a wear-resistant coating is arranged on the traction surface of the traction groove.

5. The asynchronous gearless steel belt traction machine according to claim 2, is characterized in that: the stator is composed of a stator core and an enameled copper wire, and the rotor is a cast aluminum rotor.

6. The asynchronous gearless steel belt traction machine according to claim 1 or 2, wherein: the traction sheave and the driving shaft are integrally arranged, and two sides of the traction sheave are rotatably arranged on the rack through bearings respectively.