CN210431136U

CN210431136U - Gear box motor

Info

Publication number: CN210431136U
Application number: CN201921508072.1U
Authority: CN
Inventors: 季月康
Original assignee: Shanghai Heyu Dynamo Co ltd
Current assignee: Shanghai Heyu Dynamo Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-04-28
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a gear box motor, the motor is fixedly connected with the gear box shell through a support column, and a motor output shaft on the motor penetrates into the gear box shell; the output shaft of the motor is meshed with the second-stage gear; a first pinion is arranged above the second-stage gear and meshed with the third-stage gear; a second pinion is arranged below the third-stage gear and meshed with the fourth-stage gear; a third pinion is arranged below the fourth-stage gear and meshed with the fifth-stage gear; an output shaft is connected to the fifth-stage gear; the output shaft penetrates through the cover plate; a first copper shaft sleeve is sleeved in the cover plate; a first needle bearing is sleeved in the first copper shaft sleeve; the output shaft is arranged inside the first needle bearing; the motor and the gear box adopt an integrated mechanism, and the gear shaft drives the second-stage gear, the third-stage gear, the fourth-stage gear and the fifth-stage gear, so that the gear box has the characteristics of small volume, large torsion and low noise; the device has the characteristic of large reduction ratio and faults.

Description

Gear box motor

Technical Field

The utility model relates to a motor especially relates to a gear box motor.

Background

In current technique, often use the gear box to reduce to the rotational speed of motor, promote the moment of torsion, gear box and motor often separately set up among the prior art, in order to reduce installation space, need with motor and gear box integration, for this the utility model discloses in, it is rotatory to pass through the gear shaft drive first order gear by the motor, and first order drives the second level, and the second level drives the third level to this analogizes, thereby realizes the change of output rotational speed, and the output moment of torsion promotes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, and the utility model realizes a gearbox motor which is characterized by comprising a motor and a gearbox, wherein the motor is fixedly connected with a gearbox shell through a support column, and a motor output shaft on the motor penetrates into the gearbox shell; the output shaft of the motor is meshed with the second-stage gear; a first pinion is arranged above the second-stage gear; the first pinion is meshed with the third-stage gear; a second pinion is arranged below the third-stage gear; the second pinion is meshed with the fourth stage gear; a third pinion is arranged below the fourth-stage gear and meshed with the fifth-stage gear; an output shaft is connected to the fifth-stage gear; the output shaft penetrates through the cover plate; a first copper shaft sleeve is sleeved in the cover plate; a first needle bearing is sleeved in the first copper shaft sleeve; the output shaft is disposed inside the first needle bearing.

Further, the motor also comprises a rear end cover, a rear bearing sleeve, a rear bearing, a stator assembly, a coil, a rotor, an optical axis, a front bearing sleeve, a front end cover, a screw and a cooling fan; the front end cover is sleeved on the output shaft of the motor; a front bearing sleeve is arranged in the front end cover; a front bearing is arranged in the front bearing sleeve; an optical axis is arranged at the rear end of the motor output shaft; sleeving a front bearing on the optical axis; a rotor is arranged on the optical axis; arranging a stator assembly around the outside of the rotor; a coil is clamped below the stator component; a rear bearing is arranged on the other side of the optical axis; a rear bearing sleeve is embedded in the outer side of the rear bearing, the outer side of the rear bearing sleeve is embedded in the rear end cover, and the optical axis penetrates through the rear end cover; fixing a heat radiation fan on the optical axis; and penetrating screws into the stator assembly and fixing the motor on the gear box shell.

Furthermore, the tooth shapes of the output shaft of the motor and the second-stage gear are helical tooth structures; the second-stage gear, the third-stage gear, the fourth-stage gear and the fifth-stage gear penetrate through the first bearing; the inner ring of the first bearing is sleeved on the fixing column on the gear box shell.

Furthermore, the material of the second-stage gear is thermosetting plastic, and the materials of the third-stage gear, the fourth-stage gear and the fifth-stage gear are all powder metallurgy.

Further, a second copper shaft sleeve is embedded in the middle of the gearbox shell; and a second needle bearing is embedded in the second copper bush.

Furthermore, a wiring terminal is arranged on the coil.

Further, the motor is a phase shaded pole asynchronous motor; the reduction ratio of the gear box is 1:50-1: 20.

The utility model has the technical effects that the motor and the gear box adopt an integrated mechanism, and the gear shaft drives the second-stage gear to rotate, the second-stage gear drives the third-stage gear, the third-stage gear drives the fourth-stage gear, and the fourth-stage gear drives the fifth-stage gear, thereby realizing the change of the output rotating speed and improving the output torque; has the characteristics of small volume, large torsion and low noise; meanwhile, the device has the characteristic of large reduction ratio and fault.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a blasting diagram of the present invention.

Fig. 3 is a schematic diagram of the reduction gearbox after the cover plate is removed.

Fig. 4 is a schematic diagram of the engagement between the motor output shaft and the second stage gear of the present invention.

Fig. 5 is a schematic diagram of the engagement between the third stage gear and the fourth stage gear of the present invention.

Fig. 6 is a schematic view of the first needle bearing of the present invention.

Fig. 7 is a schematic view of the second needle bearing of the present invention.

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.

In combination, as shown in fig. 1, fig. 2, fig. 3, and fig. 6, in this embodiment, a gearbox motor is disclosed, which includes a motor 100 and a gearbox 200, the motor 100 is fixedly connected to a gearbox housing 18 through a support column 100, and a motor output shaft 8 on the motor 100 penetrates into the gearbox housing 18; the output shaft 8 of the motor is meshed with the second-stage gear 13; a first pinion gear 131 is provided above the second-stage gear 13; the first pinion 131 meshes with the third stage gear 14; a second pinion gear 141 is provided below the third stage gear 14; the second pinion gear 141 meshes with the fourth stage gear 15; a third pinion gear 151 is provided below the fourth stage gear 15, and the third pinion gear 151 meshes with the fifth stage gear 16; an output shaft 17 is connected to the fifth-stage gear 16; the output shaft 17 passes through the cover plate 21; a first copper shaft sleeve 22 is sleeved in the cover plate 21; a first needle bearing 23 is sleeved in the first copper shaft sleeve 22; the output shaft 17 is disposed inside the first needle bearing 23; integrating the motor 100 and the gear box 200; through the motor output shaft 8; namely, the first-stage gear transmits power to the second-stage gear 13, then the second-stage gear 13 transmits power to the third-stage gear 14, the third-stage gear 14 transmits power to the fourth-stage gear 15, the fourth-stage gear 15 transmits power to the fifth-stage gear 16, and finally the output shaft 17 transmits torque to a load part to be driven; thereby realizing the change of the output rotating speed and the improvement of the output torque; has the characteristics of small volume, large torsion and low noise.

In combination, as shown in fig. 1, in order to realize the transmission of the power of the gear box, the motor 100 further includes a rear end cover 1, a rear bearing housing 2, a rear bearing 3, a stator assembly 4, a coil 5, a rotor 7, an optical axis 81, a front bearing 9, a front bearing housing 10, a front end cover 11, a screw 12, and a cooling fan 24; the front end cover 12 is sleeved on the motor output shaft 8; a front bearing sleeve 10 is arranged in the front end cover 11; a front bearing 9 is arranged in the front bearing sleeve 10; an optical axis 81 is arranged at the rear end of the motor output shaft 8; the front bearing 9 is sleeved on the optical axis 81; a rotor 7 is provided on the optical axis 81; the stator assembly 4 is arranged around the outside of the rotor 7; a coil 5 is clamped below the stator assembly 4; a rear bearing 3 is provided on the other side of the optical axis 8; the outer side of the rear bearing 3 is embedded into the rear bearing sleeve 2, the outer side of the rear bearing sleeve 2 is embedded into the rear end cover 1, and the optical axis 81 penetrates through the rear end cover 1; fixing the heat radiation fan 24 on the optical axis 81; screws 12 are threaded into the stator assembly 4 and the motor 100 is secured to the gearbox housing 18. Such a structure forms the structure of the motor 100 and is integrated with the gear box 200. The rotor 7 and the optical axis 81 form a rotor assembly which can rotate around the rear bearing 3 and the front bearing 9, the stator assembly 4 is a main body structure of the motor, bears the rear end cover 1, the front end cover 11, the rotor 7 and the optical axis 81, is equivalent to a human skeleton, and the screw 12 fastens the rear end cover 1 and the front end cover 11. The front bearing 9 and the front bearing housing 10 function the same as the rear bearing 3 and the front bearing 9. After the power supply is switched on, the coil 5 generates an electromagnetic field, the magnetic field is guided by the stator assembly 4, a rotating magnetic field is provided for the rotor 7, the rotor 7 provides a cyclic and starting rotating force, power is transmitted into the gear box body through the optical axis 81, the rotating speed is reduced through the output shaft, the torque is improved, and the load is driven to operate. The motor 100 in this embodiment is a single-phase shaded-pole asynchronous motor, and the shaded-pole motor is the simplest motor of single-phase ac motors, and a cage-type chute cast aluminum rotor is generally used. The shaded pole motor is divided into a salient pole type and a non-salient pole type according to different shapes and structures of the stator. The stator iron core of the salient pole shaded pole motor is a square, rectangular or circular magnetic field frame, the magnetic poles are protruded, and each magnetic pole is provided with 1 or more short-circuit copper rings playing an auxiliary role, namely a shaded pole winding. When the motor works, the concentrated winding on the salient pole magnetic pole is used as a main winding. When the main winding is electrified, the shaded pole winding can also generate induction current, so that the magnetic flux of the stator magnetic pole covered by the shaded pole winding rotates from the uncovered part to the covered part. The motor has the advantages of simple structure, low failure rate, low running noise, good integration with various environments and occasions, and suitability for various application scenes.

In order to form the structure of the gear box 200, as shown in fig. 3, 4 and 5, the second stage gear 13, the third stage gear 14, the fourth stage gear 15 and the fifth stage gear 15 all penetrate into the first bearing 25; the inner rings of the first bearings 25 are sleeved on the fixing columns 181 on the gearbox shell 18.

In the present embodiment, the material of the second stage gear 13 is thermosetting plastic, and the materials of the third stage gear 14, the fourth stage gear and the fifth stage gear 15 are all powder metallurgy. The tooth profiles of the motor output shaft 8 and the second-stage gear 13 are helical teeth, and compared with straight teeth, the helical teeth have small impact, vibration and noise in the meshing process, so that the transmission is stable, the contact ratio between the gears is increased, and the noise phenomenon caused by tooth beating is prevented. The helical gear is more suitable for high-speed transmission, a gear shaft of the motor is a driving wheel and is a power source, the gear shaft is meshed with the second-stage gear 13 to form a two-stage gear with the highest transmission speed, and the helical gear structure is suitable for the transmission environment. The second-stage gear 13 is made of thermosetting plastic, commonly called bakelite, the material characteristics of the thermosetting plastic can enable the meshing adaptability to be better, the thermosetting plastic has certain plasticity and toughness and can have certain inclusion on tiny dust and chips, meanwhile, the thermosetting plastic material can reduce the noise of the gear in the high-speed transmission process, meanwhile, the torque of the previous two-stage transmission is smaller, the service life of the gear box cannot be influenced by the characteristics of the thermosetting plastic, and the design and the material selection meet the characteristics of high speed, light load and high efficiency during the transmission of the first-stage gear and the second-stage gear.

Referring to FIG. 6, a second copper bush 20 is embedded in the middle of the gearbox housing 18; a second needle bearing 19 is embedded in the second brass bushing 20.

In fig. 1, a connection terminal 6 is provided on a coil 5, and a motor 100 is a phase shaded pole asynchronous motor in the embodiment; the gear box 200 has a reduction ratio of between 1:50 and 1: 20.

As a preferred embodiment of the present invention, it is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention, and that the scope of the present invention is also encompassed by the present invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A gear box motor is characterized by comprising a motor and a gear box, wherein the motor is fixedly connected with a gear box shell through a support column, and a motor output shaft on the motor penetrates into the gear box shell; the output shaft of the motor is meshed with the second-stage gear; a first pinion is arranged above the second-stage gear; the first pinion is meshed with the third-stage gear; a second pinion is arranged below the third-stage gear; the second pinion is meshed with the fourth stage gear; a third pinion is arranged below the fourth-stage gear and meshed with the fifth-stage gear; an output shaft is connected to the fifth-stage gear; the output shaft penetrates through the cover plate; a first copper shaft sleeve is sleeved in the cover plate; a first needle bearing is sleeved in the first copper shaft sleeve; the output shaft is disposed inside the first needle bearing.

2. The gearbox motor of claim 1, further comprising a rear end cap, a rear bearing housing, a rear bearing, a stator assembly, a coil, a rotor, an optical axis, a front bearing housing, a front end cap, a screw, a heat sink fan; the front end cover is sleeved on the output shaft of the motor; a front bearing sleeve is arranged in the front end cover; a front bearing is arranged in the front bearing sleeve; an optical axis is arranged at the rear end of the motor output shaft; sleeving a front bearing on the optical axis; a rotor is arranged on the optical axis; arranging a stator assembly around the outside of the rotor; a coil is clamped below the stator component; a rear bearing is arranged on the other side of the optical axis; a rear bearing sleeve is embedded in the outer side of the rear bearing, the outer side of the rear bearing sleeve is embedded in the rear end cover, and the optical axis penetrates through the rear end cover; fixing a heat radiation fan on the optical axis; and penetrating screws into the stator assembly and fixing the motor on the gear box shell.

3. A gearbox motor as defined in claim 1, wherein the gear profiles of the motor output shaft and the second stage gear are helical tooth structures; the second-stage gear, the third-stage gear, the fourth-stage gear and the fifth-stage gear penetrate through the first bearing; the inner ring of the first bearing is sleeved on the fixing column on the gear box shell.

4. A gearbox motor as defined in claim 3 wherein said second stage gear is a thermoset plastic and said third, fourth and fifth stage gears are all powder metallurgy.

5. A gearbox motor as defined in claim 1, wherein said gearbox housing has a second copper bushing embedded in the middle thereof; and a second needle bearing is embedded in the second copper bush.

6. A gearbox motor as defined in claim 2 wherein said coil has terminals thereon.

7. A gearbox motor as defined in claim 1, wherein said motor is a phase shaded pole asynchronous motor; the reduction ratio of the gear box is 1:50-1: 20.