CN216583695U

CN216583695U - Permanent magnet synchronous traction machine

Info

Publication number: CN216583695U
Application number: CN202123265558.7U
Authority: CN
Inventors: 吴昌明; 钟耀德; 汪建宇
Original assignee: Ningbo Yiteng Precision Manufacturing Co ltd
Current assignee: Ningbo Yiteng Precision Manufacturing Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-24
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to a permanent magnet synchronous traction machine, which comprises a motor, a bridge frame and a traction wheel, wherein one end of the bridge frame is provided with an opening, the diameter of the opening is larger than that of the traction wheel, and the other end of the bridge frame is provided with a first bearing chamber provided with a first bearing; a rear end cover with a second bearing and a traction wheel are sequentially arranged on a driving shaft of the motor, the traction wheel is positioned between two ends of the bridge, the rear end cover is abutted against and fixed with the bridge end with an opening, and a motor base is abutted against and fixed with the bridge; the utility model has the advantages that: the engine base and the bridge frame adopt a split structure, an opening at one end of the bridge frame is larger than the diameter of the traction sheave, so that the installation and the disassembly of the traction sheave are convenient, the traction sheave is more convenient when needing to be replaced, and meanwhile, the structure of the bridge frame is simplified, the casting is easy, and the machining can be realized only by once clamping; therefore, modular assembly can be realized in the production process of the traction machine, the productivity is effectively improved, the production efficiency is higher, and the traction machine has more advantages in maintenance.

Description

Permanent magnet synchronous traction machine

Technical Field

The utility model belongs to the technical field of the hauler, especially, relate to a synchronous hauler of permanent magnetism.

Background

With the development of the modern building industry, the market share of the household elevator is continuously increased, and the requirements of smaller space, high efficiency, reliability, low noise and the like are provided for the elevator. Most household elevator traction machines in the industry adopt cantilever type and double-support type structures, the double-support type traction machine has more advantages than the cantilever type, and the double-support type traction machine has some defects in the aspect of convenient disassembly and assembly of the structure, so that the reliability of the traction machine is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a compact structure, be convenient for installation and the synchronous hauler of permanent magnetism of dismantlement.

The utility model aims at completing the technical proposal that the permanent magnet synchronous traction machine comprises a motor, a bridge frame and a traction wheel, wherein one end of the bridge frame is provided with an opening, the diameter of the opening is larger than that of the traction wheel, and the other end of the bridge frame is provided with a first bearing chamber provided with a first bearing; the rear end cover and the traction wheel with the second bearing are sequentially mounted on a driving shaft of the motor, the traction wheel is located between two ends of the bridge, the rear end cover abuts against and is fixed to the end, provided with the opening, of the bridge, and the base of the motor abuts against and is fixed to the bridge.

The utility model has the advantages that: by adopting the technical scheme, compared with the prior art, the engine base and the bridge frame adopt a split structure, and the opening at one end of the bridge frame is larger than the diameter of the traction sheave, so that the traction sheave is convenient to mount and dismount; therefore, modular assembly can be realized in the production process of the traction machine, the productivity is effectively improved, the production efficiency is higher, and the traction machine has more advantages in maintenance.

Preferably, the motor is positioned at one end of the bridge, and the other end of the bridge is provided with a brake and an encoder through a driving shaft of the motor; the installation structure enables the two ends of the bridge frame to be balanced, the gravity center of the traction machine is maintained in the middle of the traction sheave, when the traction sheave is loaded, the traction machine is shared to the bridge frame support through the bearings on the two sides to form a double-support structure, the two sides are evenly stressed, and the stress is reasonable, so that the traction machine can safely and stably run.

Preferably, the motor comprises a stator, a rotor, a base and a driving shaft, the rotor is fixed on the driving shaft, a permanent magnet is installed on the outer ring of the rotor and corresponds to the stator, the stator is fixed on the inner wall of the base, one side of the base is fixed with the bridge, and a cover plate is installed on the other side of the base; the base and the stator can be assembled independently, and the motor is simple in structure and convenient to install.

Preferably, the machine base is formed by adopting a general aluminum alloy extruded section; the molding is easier, the universality is stronger, and the cost is greatly reduced.

Preferably, a second bearing chamber is arranged on the end face, close to the driving shaft of the motor, of the rear end cover, and the second bearing is installed in the second bearing chamber; the installation and the limitation of the bearing are facilitated.

Preferably, a step spigot surface is arranged on the end surface of the rear end cover close to the bridge, and the rear end cover and the bridge are fixedly installed through the step spigot surface; the installation and the spacing between the rear end cover and the bridge frame are more convenient.

Preferably, one end of the second bearing is fixedly clamped with the driving shaft of the motor through a first clamping ring, and the other end of the second bearing is fixedly clamped with the rear end cover through a second clamping ring; so that the second bearing can be limited in the second bearing chamber and is convenient to mount.

Preferably, the first bearing is installed in the first bearing chamber along a driving shaft of a motor, one end of the first bearing abuts against a spigot arranged on the bridge frame, and the other end of the first bearing is fixed with the bridge frame through an end cover; the installation and the limitation of the bearing are facilitated.

Preferably, a gasket and a framework oil seal are respectively arranged between the end cover and the other end of the first bearing, the gasket abuts against the other end of the first bearing, and the framework oil seal is limited in the end cover; the tractor can run more stably, and secondary protection is provided for preventing oil stains from polluting the braking surface.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the permanent magnet synchronous traction machine of the present invention.

Fig. 2 is a schematic view of the half-section main view structure of the permanent magnet synchronous traction machine of the present invention.

Fig. 3 is a schematic diagram of the bridge structure of the present invention.

The reference numbers in the drawings are respectively: 1. a cover plate; 2. a motor; 3. a drive shaft; 4. a stator; 5. a rotor; 6. a machine base; 7. a second bearing; 8. a rear end cap; 9. a bridge frame; 10. a traction sheave; 11. a gasket; 12. framework oil seal; 13. an end cap; 14. a brake; 15. an encoder; 16. a first bearing; 17. a permanent magnet; 18. a first snap ring; 19. a second snap ring; 81. a second bearing chamber; 82. a stepped spigot surface; 91. an opening; 92. a first bearing chamber.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: as shown in fig. 1 to 3, the present invention includes a motor 2, a bridge 9 and a traction sheave 10, wherein one end of the bridge 9 is provided with an opening 91, and the diameter of the opening 91 is larger than that of the traction sheave 10, and the other end of the bridge 9 is provided with a first bearing chamber 92 provided with a first bearing 16; the traction sheave clamping device is simple in structure, machining can be achieved only by one-time clamping, and the traction sheave is convenient to mount and dismount. The rear end cover 8 with the second bearing 7 and the traction sheave 10 are sequentially installed on the driving shaft 3 of the motor 2, the traction sheave 10 is located between two ends of the bridge frame 9, namely the traction sheave 10 is located in the middle of the bridge frame 9, the rear end cover 8 abuts against and is fixed to the end of the bridge frame 9 with the opening 91, the base 6 of the motor 2 abuts against and is fixed to the bridge frame 9, the base and the bridge frame are of a split structure, and installation and disassembly are convenient. The installation process of the structure is as follows: fixing a traction sheave 10 on a driving shaft 3 through a flat key, installing a first bearing 16 and a second bearing 7 on the front side and the rear side of the driving shaft 3 through a hot sleeve, installing a second bearing chamber 81 of a rear end cover 8 and the second bearing 7 on the rear side, installing a rotor 5 at the rear end of the driving shaft 3 through the flat key, axially positioning by using a retainer ring, and installing into the bridge along the opening end of the bridge; the permanent magnet synchronous traction machine is more convenient to mount and dismount.

The motor 2 is positioned at one end of the bridge 9, the other end of the bridge 9 is provided with a brake 14 and an encoder 15 through a driving shaft 3 of the motor 2, and the brake and the encoder are combined with the traction sheave 10 to be positioned at the middle position of the bridge 9; the gravity center of the traction machine is maintained in the middle of the traction sheave, when the traction sheave is loaded, the traction sheave is shared on the bridge frame support through the first bearing 16 and the second bearing 7 to form a double-support structure, the two sides are evenly stressed, and the stress is reasonable, so that the traction machine can run safely and stably. The first bearing 16 and the second bearing 7 are both deep groove ball bearings.

The motor 2 comprises a stator 4, a rotor 5, a base 6 and a driving shaft 3, wherein the rotor 5 is fixed on the driving shaft 3, the outer ring of the rotor 5 is provided with a permanent magnet 17 and corresponds to the stator 4, the stator 4 is fixed on the inner wall of the base 6, one side of the base 6 is fixed with the bridge 9, and the other side of the base 9 is provided with a cover plate 1; the machine base 6 is formed by adopting a general aluminum alloy extruded section; the whole machine can realize modular assembly.

The end surface of the rear end cover 8 close to the driving shaft 3 of the motor 2 is provided with a second bearing chamber 81, and the second bearing 7 is arranged in the second bearing chamber 81; the end surface of the rear end cover 8 close to the bridge frame 9 is provided with a step spigot surface 82, and the rear end cover 8 and the bridge frame 9 are fixedly installed through the step spigot surface 82; one end of the second bearing 7 is fixedly connected with the driving shaft 3 of the motor 2 through a first clamping ring 18 in a clamping mode, and the other end of the second bearing 7 is fixedly connected with the rear end cover 8 through a second clamping ring 19 in a clamping mode.

The first bearing 16 is arranged in the first bearing chamber 92 along the driving shaft 3 of the motor 2, one end of the first bearing 16 is abutted against a spigot arranged on the bridge frame 9, and the other end of the first bearing 16 is fixed with the bridge frame 9 through an end cover 13; and a gasket 11 and a framework oil seal 12 are respectively arranged between the end cover 13 and the other end of the first bearing 16, the gasket 11 is abutted against the other end of the first bearing 16, and the framework oil seal 12 is limited in the end cover 13.

The utility model discloses not be limited to above-mentioned embodiment, no matter make any change on its shape or material constitution, all adopt the utility model provides a structural design all is the utility model discloses a warp, all should consider to be in within the protection scope of the utility model.

Claims

1. The permanent magnet synchronous traction machine comprises a motor (2), a bridge (9) and a traction sheave (10), and is characterized in that: an opening (91) is formed in one end of the bridge (9), the diameter of the opening (91) is larger than that of the traction sheave (10), and a first bearing chamber (92) provided with a first bearing (16) is formed in the other end of the bridge (9); the rear end cover (8) with a second bearing (7) and the traction wheel (10) are sequentially installed on a driving shaft (3) of the motor (2), the traction wheel (10) is located between two ends of the bridge (9), the rear end cover (8) is abutted and fixed to the end of the bridge (9) with an opening (91), and the base (6) of the motor (2) is abutted and fixed to the bridge (9).

2. The permanent magnet synchronous traction machine according to claim 1, wherein: the motor (2) is positioned at one end of the bridge (9), and the other end of the bridge (9) is provided with a brake (14) and an encoder (15) through a driving shaft (3) of the motor (2).

3. The permanent magnet synchronous traction machine according to claim 1, wherein: motor (2) include stator (4), rotor (5), frame (6) and drive shaft (3), rotor (5) are fixed on drive shaft (3), just permanent magnet (17) and with stator (4) are corresponding are installed to the outer lane of rotor (5), stator (4) are fixed on the inner wall of frame (6), just one side of frame (6) with crane span structure (9) are fixed, apron (1) is installed to the opposite side of frame (6).

4. The permanent magnet synchronous traction machine according to claim 3, wherein: the machine base (6) is formed by adopting a general aluminum alloy extrusion section.

5. The permanent magnet synchronous traction machine according to claim 1, wherein: and a second bearing chamber (81) is arranged on the end face, close to the driving shaft (3) of the motor (2), of the rear end cover (8), and the second bearing (7) is installed in the second bearing chamber (81).

6. The permanent magnet synchronous traction machine according to claim 1 or 5, characterized in that: the end face, close to the bridge (9), of the rear end cover (8) is provided with a step spigot face (82), and the rear end cover (8) and the bridge (9) are fixedly installed through the step spigot face (82).

7. The permanent magnet synchronous traction machine according to claim 5, wherein: one end of the second bearing (7) is connected with the driving shaft (3) of the motor (2) in a clamped mode through a first clamping ring (18), and the other end of the second bearing (7) is connected with the rear end cover (8) in a clamped mode through a second clamping ring (19).

8. The permanent magnet synchronous traction machine according to claim 1, wherein: the first bearing (16) is installed in the first bearing chamber (92) along a driving shaft (3) of the motor (2), one end of the first bearing (16) is abutted to a spigot arranged on the bridge (9), and the other end of the first bearing (16) is fixed with the bridge (9) through an end cover (13).

9. The permanent magnet synchronous traction machine according to claim 8, wherein: end cover (13) with install packing ring (11) and skeleton oil blanket (12) respectively between the other end of first bearing (16), just packing ring (11) with the other end of first bearing (16) offsets, skeleton oil blanket (12) are spacing in end cover (13).