CN212343505U

CN212343505U - Shaftless hollow motor

Info

Publication number: CN212343505U
Application number: CN202021547619.1U
Authority: CN
Inventors: 付永新
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-01-12
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to the technical field of motors, in particular to a shaftless hollow motor, which comprises a shell, a rotor assembly and a stator assembly, wherein the left end of the shell is fixedly connected with a front end cover, the outer side of the shell is fixedly connected with a first fixing lug, the right end of the shell is fixedly connected with a rear end cover, the inner part of the shell is fixedly connected with the stator assembly, the inner part of the stator assembly is rotatably connected with the rotor assembly, a power wire is fixedly connected above the surface of the rear end cover, the front end of the power wire is fixedly connected with a fixing piece, the outer side of the rear end cover is fixedly connected with a second fixing lug, and the first fixing lug and the second fixing lug are uniformly and fixedly connected with the outer side of the shell, later maintenance is convenient, and is more energy-conserving, long service life.

Description

Shaftless hollow motor

Technical Field

The utility model relates to the technical field of motors, specifically be a shaftless hollow motor.

Background

The hollow shaft motor is mainly technically characterized in that a motor shaft is a hollow metal pipe, an impeller is arranged on the inner wall of the hollow metal pipe, the impeller is fixed on a bearing on the inner wall of the pipe shaft by adopting a welding method and other methods, the hollow shaft motor mainly has two types of precision requirements, namely no precision requirement and no precision requirement, the requirement on the size precision of a hollow output shaft or an inner hole of the motor is not high, the inner hole of the hollow shaft motor is mainly used for wiring, light transmission or passing through other media such as air, the hollow shaft motor greatly optimizes the mechanical design, facilitates wiring and saves the design space and the production cost, the hollow shaft motor with the precision requirement has high requirements on the hole diameter and the thread precision of the hollow output shaft or the inner hole of the hollow output shaft, and the hollow shaft motor is mainly customized to meet the requirement of using a third-party trapezoidal screw or a ball screw, the precision requirements of the hollow shaft on the bore diameter and the thread are higher than those of a common through type screw rod motor.

The existing motor is low in maximum power, the motor is slow in response due to resistance and other external obstacles when the motor is used, due to the existence of the stator core in the motor, electrons can generate magnetic hysteresis and eddy current loss in the stator core during operation, the power consumption of the motor is increased, the maximum energy conversion efficiency of the traditional motor is 15% -50%, and no obvious energy-saving effect exists, the traditional motor is waste in material utilization, the structural design is complex, the noise is high, and the maintenance in later period is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shaftless hollow motor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a shaftless hollow motor, includes shell, rotor assembly and stator assembly, shell left end fixedly connected with front end housing, the first fixed ear of shell outside fixedly connected with, shell right-hand member fixedly connected with rear end cap, the inside fixedly connected with stator assembly of shell, the inside rotation of stator assembly is connected with the rotor assembly, rear end cap surface top fixedly connected with power cord, power cord front end fixedly connected with stationary blade, the fixed ear of rear end cap outside fixedly connected with second.

Preferably, the stator assembly includes an iron core lamination, a first insulation frame and a coil winding, the outer side of the iron core lamination is fixedly connected with the housing, the first insulation frame is fixedly connected below the iron core lamination, the coil winding is fixedly connected below the first insulation frame, a second insulation frame is fixedly connected below the coil winding, and a rotor assembly is fixedly connected below the second insulation frame.

Preferably, the front end cover surface side has seted up the fixed orifices, the number of the fixed ear of first fixed ear and second all respectively has 4, the even fixed connection in the shell outside of the fixed ear of first fixed ear and second, the fixed ear of first fixed ear and the fixed ear inside equal fixedly connected with set screw of second.

Preferably, the rotor assembly comprises a first bearing, magnetic steel and a rotor shaft, the left end of the first bearing is fixedly connected with the rotor shaft, the left end of the rotor shaft is fixedly connected with the magnetic steel, the magnetic steel is fixedly connected with the magnetic steel at the outer side of the magnetic steel and separates from the magnetic steel, the left end of the magnetic steel is fixedly connected with a second bearing, the rotor shaft is internally and rotatably connected with a worm wheel, and the worm wheel is internally and fixedly connected with a fixing ring.

Preferably, the number of the iron core lamination, the number of the first insulating frame, the number of the coil winding and the number of the second insulating frame are respectively 12, the iron core lamination, the number of the first insulating frame, the number of the coil winding and the number of the second insulating frame form a T-shaped module, and the T-shaped modules are fixedly welded and connected through a clamp.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, through the arranged winding, the insulating frame and the iron chip lamination, the winding through the arranged winding is very simple, the reliable process of the equipment is simple, and the T-shaped modules are formed through the winding, the insulating frame and the iron chip lamination, 12T-shaped modules save materials, the modules are fixedly welded by the end, the three windings are excited to rotate and change the direction, the practicability and the assembly convenience of the device are improved, and the resources are saved;

2. the utility model discloses in, the magnet steel, pivot son and bearing, paste in the rotor shaft surface through the rotor magnet steel surface that sets up, the magnet steel separates through the magnet steel and separates, the magnet steel separates through glue and magnet steel bonding, the bearing passes through the noise that rotor shaft interference fit reduced the motor, and the turbine arranges with rotor shaft hollow hole, with hole interference fit, its structural design is reasonable, the installation is simple, high durability and convenient use, the noise is little, later stage easy maintenance, it is more energy-conserving, ensure the operation of motor safe and reliable, long service life.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the stator assembly of the present invention;

FIG. 4 is an exploded view of the stator assembly of the present invention;

FIG. 5 is a schematic structural view of the rotor assembly of the present invention;

fig. 6 is a schematic side view of the rotor assembly structure of the present invention.

In the figure: 1-shell, 2-front end cover, 3-fixing hole, 4-first fixing lug, 5-fixing screw, 6-rear end cover, 7-second fixing lug, 8-rotor assembly, 801-first bearing, 802-magnetic steel spacer, 803-magnetic steel, 804-rotor shaft, 805-turbine, 806-fixing ring, 807-second bearing, 9-stator assembly, 901-iron core lamination, 902-first insulating frame, 903-winding, 904-second insulating frame, 10-power line and 11-fixing piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

the utility model provides a shaftless hollow motor, which comprises a housing 1, rotor assembly 8 and stator assembly 9, 1 left end fixedly connected with front end housing 2 of shell, the first fixed ear 4 of 1 outside fixedly connected with of shell, 1 right-hand member fixedly connected with rear end housing 6 of shell, the inside fixedly connected with stator assembly 9 of shell, the inside rotation of stator assembly 9 is connected with rotor assembly 8, rear end housing 6 fixed surface top fixedly connected with power cord 10, power cord 10 front end fixedly connected with stationary blade 11, the fixed ear 7 of 6 outside fixedly connected with second of rear end housing.

The stator assembly 9 comprises iron core laminations 901, a first insulating frame 902 and a coil winding 903, the outer side of the iron core laminations 901 is fixedly connected with the shell 1, the first insulating frame 902 is fixedly connected below the iron core laminations 901, the coil winding 903 is fixedly connected below the first insulating frame 902, the second insulating frame 904 is fixedly connected below the coil winding 903, and the rotor assembly 8 is fixedly connected below the second insulating frame 904, so that the material is saved and the design is simple; the side edge of the surface of the front end cover 2 is provided with a fixing hole 3, the number of the first fixing lugs 4 and the number of the second fixing lugs 7 are respectively 4, the first fixing lugs 4 and the second fixing lugs 7 are uniformly and fixedly connected to the outer side of the shell 1, and fixing screws 5 are fixedly connected inside the first fixing lugs 4 and the second fixing lugs 7, so that the whole device is conveniently fixed; the rotor assembly 8 comprises a first bearing 801, magnetic steel 803 and a rotor shaft 804, the rotor shaft 804 is fixedly connected to the left end of the first bearing 801, the magnetic steel 803 is fixedly connected to the left end of the rotor shaft 804, a magnetic steel spacer 802 is fixedly connected to the outer side of the magnetic steel 803, a second bearing 807 is fixedly connected to the left end of the magnetic steel 803, a worm wheel 805 is rotatably connected to the inner part of the rotor shaft 804, and a fixing ring 806 is fixedly connected to the inner part of the worm wheel 805, so that noise; the number of the iron core lamination 901, the first insulating frame 902, the coil winding 903 and the second insulating frame 904 is respectively 12, the iron core lamination 901, the first insulating frame 902, the coil winding 903 and the second insulating frame 904 form a T-shaped module, the T-shaped modules are fixedly welded and connected through a clamp, and the maintainability of the device is improved.

The working process is as follows: the stator assembly 9 is fixed inside the casing 1, and the front and back sides of the casing 1 are fixedly connected with the front end cover 2 and the back end cover 6, the casing 1, the front end cover 2 and the back end cover 6 are fixedly connected through the first fixing lug 4 and the second fixing lug 7 through the fixing screw 5, when the motor is started, the power cord 10 is externally connected with a power supply, the switch is started, at the moment, the rotor assembly 8 rotates on the stator assembly 9, because the stator assembly 9 is assembled by 12T-shaped modules together and saves materials, the modules are fixedly welded through the clamp, the magnetic field rotation reversing is carried out by the three-phase winding excitation, the practicability of the device is improved, the power of the motor can be improved, the energy can be saved, the winding between the coil windings 903 is very simple, the equipment is reliable and simple in process, the rotor assembly 8 rotates on the stator assembly 9, and the magnetic steel 803 on the rotor assembly 8 is pasted on the surface, magnet steel separates 802 and separates adjacent magnet steel 803, and magnet steel 803 separates bonding through glue between 802 with the magnet steel, interference fit between first bearing 801 and the rotor shaft 804, and turbine 805 arranges and rotor shaft 804 hollow hole and hole interference fit, can reduce the noise of motor when the operation, and this device convenient to use, the noise is little, later stage easy maintenance, and is more energy-conserving, ensures motor safe and reliable's operation, long service life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A shaftless hollow motor comprises a shell (1), a rotor assembly (8) and a stator assembly (9), and is characterized in that: the improved motor rotor is characterized in that the shell (1) is fixedly connected with a front end cover (2) at the left end, a first fixed lug (4) is fixedly connected with the outer side of the shell (1), a rear end cover (6) is fixedly connected with the right end of the shell (1), a stator assembly (9) is fixedly connected with the inner part of the shell (1), a rotor assembly (8) is rotatably connected with the inner part of the stator assembly (9), a power line (10) is fixedly connected with the upper surface of the rear end cover (6), a fixing piece (11) is fixedly connected with the front end of the power line (10), and a second fixed lug (7) is fixedly connected with the outer side.

2. A shaftless air-core motor according to claim 1, wherein: the stator assembly (9) comprises iron core laminations (901), a first insulating frame (902) and a coil winding (903), wherein the outer side of the iron core laminations (901) is fixedly connected with a shell (1), the first insulating frame (902) is fixedly connected to the lower portion of the iron core laminations (901), the coil winding (903) is fixedly connected to the lower portion of the first insulating frame (902), a second insulating frame (904) is fixedly connected to the lower portion of the coil winding (903), and a rotor assembly (8) is fixedly connected to the lower portion of the second insulating frame (904).

3. A shaftless air-core motor according to claim 1, wherein: fixed orifices (3) have been seted up to front end housing (2) surface side, the number of the fixed ear of first fixed ear (4) and second (7) all respectively has 4, the even fixed connection in shell (1) outside of the fixed ear of first fixed ear (4) and second (7), the fixed ear of first fixed ear (4) and second (7) inside equal fixedly connected with set screw (5).

4. A shaftless air-core motor according to claim 2, wherein: rotor assembly (8) include first bearing (801), magnet steel (803) and rotor shaft (804), first bearing (801) left end fixedly connected with rotor shaft (804), rotor shaft (804) left end fixedly connected with magnet steel (803), magnet steel (803) outside fixedly connected with magnet steel separates (802), magnet steel (803) left end fixedly connected with second bearing (807), rotor shaft (804) internal rotation is connected with worm wheel (805), worm wheel (805) internal fixedly connected with fixes ring (806).

5. A shaftless air-core motor according to claim 2, wherein: the number of the iron core lamination sheets (901), the number of the first insulating frames (902) of the iron core, the number of the coil windings (903) of the iron core and the number of the second insulating frames (904) of the iron core are respectively 12, the iron core lamination sheets (901), the first insulating frames (902), the number of the coil windings (903) of the iron core and the number of the second insulating frames (904) of the iron core form T-shaped modules, and the T-shaped modules are fixedly welded and connected through clamps.