CN212909183U

CN212909183U - Bearing structure of roller pin split type motor rotor

Info

Publication number: CN212909183U
Application number: CN202021720330.5U
Authority: CN
Inventors: 闫玉刚; 冯韵娇
Original assignee: Dalian Guanli Motor Technology Co ltd
Current assignee: Dalian Guanli Motor Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-06
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a kingpin split type electric motor rotor bearing structure, belongs to motor technical field, including split type bearing, split type bearing bush flange, kingpin spacing groove, the axle stretches confined rotor shaft and front end housing, rear end cap and links to each other through split type bearing bush flange and the split type bearing who sets up in split type bearing bush flange, split type bearing bush flange is parallel with the axle center, cuts apart into two lamella structures, and its hole is equipped with the kingpin spacing groove, and the axle stretches confined rotor shaft and supports through split type bearing bush flange and split type bearing and connect, effectively rotates in the stator of the tape seat of installing front and rear end cap. The utility model is used for electric motor rotor's rotation support, the limited split type motor of specially adapted installation environment and generator product.

Description

Bearing structure of roller pin split type motor rotor

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to a split type electric motor rotor bearing structure of kingpin.

Background

The rotary support of the traditional motor rotor is realized through a bearing, and the installation is characterized in that the bearing is sleeved from the shaft extension end, so that the shaft extension end of the motor is required to have an open condition; along with the development of the motor application environment, the structure of the motor is diversified, the split motor with the closed shaft extension end is produced, the traditional motor rotor rotary support cannot be installed, the complexity and the manufacturability of the structure are inevitably increased if the traditional rotary support structure is adhered to, the safety and the reliability of the product are reduced, and the material cost, the installation cost and the maintenance cost are greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a split type electric motor rotor bearing structure of kingpin for electric motor rotor's rotation support, the limited split type motor of specially adapted installation environment and generator product.

The utility model adopts the following technical scheme:

a roller split type motor rotor supporting structure comprises a front end cover, a rear end cover, a machine base, a rotor with a closed shaft extension, a stator with the machine base, a rotor shaft with a closed shaft extension, a rotor iron core with a closed shaft extension, split type roller bearings, split type bearing bushes and roller limiting grooves, wherein the rotor shaft with a closed shaft extension is connected with the front end cover and the rear end cover through the split type bearing bushes and the split type roller bearings arranged in the split type bearing bushes, the split type bearing bushes are parallel to an axis and are divided into two-split type structures, the roller limiting grooves are arranged in inner holes of the two-split type structure, the rotor shaft with a closed shaft extension is in supporting connection with the split type roller bearings through the split type bearing bushes and the split type roller bearings and effectively rotates in the stator with the machine base provided with the front end cover and the rear end cover, the split type roller bearings are parallel to the axis and are of the two-split type structure, and each split type roller bearing comprises a roller, The split type roller bearing comprises a retainer, the roller pins are cylindrical roller pins, the retainer is provided with a limiting groove matched with the roller pins, the limiting groove is open to one side and the opposite side of the rotor bearing, the roller pins are uniformly embedded into the split type retainer and protrude out of the inner circle and the outer circle of the retainer, the outer contour of the split type roller pin bearing is in rolling contact with the roller pin limiting groove of the split type bearing bush, and the inner contour of the split type roller pin bearing is in rolling contact with a rotor shaft with a closed shaft extension.

Furthermore, the inner end face of the split bearing flange is provided with a unthreaded hole mounting flange, and the outer end face of the split bearing flange is provided with an oil cup.

The utility model has the advantages that:

the utility model has the characteristics of novel structure is simple, the installation is maintained conveniently, is used safe and reliable etc, has solved the installation problem of the limited split type motor of installation environment and the rotatory support component of generator, has simplified the structure and the technology of motor, has improved the security and the reliability of product usage, the effectual material cost and the installation of having reduced, maintenance cost.

Drawings

Fig. 1 is a schematic structural view of the split roller pin type motor rotor support structure of the present invention;

fig. 2 is a schematic side view of the split bearing bush of the present invention;

fig. 3 is a schematic front view of the split bearing flange of the present invention;

fig. 4 is a schematic view of the front view structure of the split needle roller bearing of the present invention;

fig. 5 is a schematic side view of the split needle roller bearing of the present invention;

FIG. 6 is a schematic structural view of the front and rear end caps of the present invention;

fig. 7 is a schematic structural view of a stator with a base according to the present invention;

fig. 8 is a schematic structural view of the shaft-extension-sealed rotor of the present invention.

The components in the figure: the structure comprises a rotor 1, a split needle bearing 2, a front end cover 3, a stator 4 with a base, a rear end cover 5, a split bearing bush 6, an oil cup 7, a unthreaded hole mounting flange 8, a needle roller limiting groove 9, an oil cup mounting hole 10, a needle roller 11, a retainer 12, an inner contour 13, an outer contour 14, an internal thread flange 15, a base mounting flange 16, a base flange 17, a base 18, a base 19, a rotor shaft 19 and a rotor core 20, wherein the rotor shaft is axially extended and sealed.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

A roller pin split type motor rotor supporting structure comprises a front end cover, a rear end cover, a split type bearing bush, a split type roller pin bearing, a stator with a base, a rotor with a closed shaft extension and an oil cup. The split bearing flange is divided into 2 parts by 180 degrees in parallel with the axis, the inner end face is provided with a unthreaded hole mounting flange and is connected with the internal thread flanges of the front end cover and the rear end cover, the outer end face is provided with a lubricating oil cup mounting hole, normal maintenance is facilitated, and the inner hole is provided with a rolling needle limiting groove; the split type needle bearing is divided into 2 segments by 180 degrees in parallel with the axis, the needle rollers are uniformly embedded into the split type retainer and are protruded to the inner circle and the outer circle of the retainer, the outer contour is contacted with the needle roller limiting groove of the split type bearing bush to roll, and the inner contour is contacted with a rotor shaft with closed shaft extension to roll; and then after the complete machine is assembled, the rotor with the shaft extension closed effectively rotates in the stator with the base and provided with the front end cover and the rear end cover through the linkage support of the split bearing bush flange and the split needle roller bearing.

Claims

1. The utility model provides a split type electric motor rotor bearing structure of kingpin, includes interconnect's front end housing (3), rear end housing (5), frame (18), and the axle stretches confined rotor (1), takes stator (4) of frame, and the axle stretches confined rotor shaft (19), rotor core (20), its characterized in that: the split type needle roller bearing is characterized by further comprising a split type needle roller bearing (2), a split type bearing bush (6) and a needle roller limiting groove (9), wherein a rotor shaft (19) with a shaft extending and sealing is connected with the front end cover (3) and the rear end cover (5) through the split type bearing bush (6) and the split type needle roller bearing (2) arranged in the split type bearing bush (6), the split type bearing bush (6) is parallel to the axis, the needle roller limiting groove (9) is formed in an inner hole of the split type bearing bush, the rotor shaft (19) with the shaft extending and sealing is in supporting connection with the split type needle roller bearing (2) through the split type bearing bush (6) and effectively rotates in a stator with a base and provided with the front end cover and the rear end cover, the split type needle roller bearing (2) is parallel to the axis, the split type needle roller bearing (2) comprises a needle roller (11) and a retainer (12), the needle roller (11) is a cylindrical needle roller, and the retainer (12) is provided with a limiting groove matched with the needle roller (11, the limiting groove is open towards one side and the opposite side of the rotor bearing, the roller pins (11) are uniformly embedded into the split type retainer (12) and protrude out of the inner circle and the outer circle of the retainer, the outline of the split type roller pin bearing (2) is in rolling contact with the roller pin limiting groove of the split type bearing bush, and the inner outline of the split type roller pin bearing (2) is in rolling contact with the rotor shaft with a closed shaft extension.

2. The needle split rotor support structure of an electric machine according to claim 1, wherein: the inner end face of the split bearing flange (6) is provided with a unthreaded hole mounting flange (8), and the outer end face is provided with an oil cup (7).

3. The needle split rotor support structure of an electric machine according to claim 1, wherein: the split type needle roller bearing (2) and the split type bearing bush (6) are divided into two-piece structures.