CN218041118U

CN218041118U - Motor rotor bearing dismantles frock

Info

Publication number: CN218041118U
Application number: CN202221735517.1U
Authority: CN
Inventors: 平奇; 郭洪; 马晓峰; 丁凯儒; 丁团结; 秦纯煜; 童奇
Original assignee: Zhejiang Jiaren New Materials Co ltd
Current assignee: Zhejiang Jiaren New Materials Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-13
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses a frock is dismantled to electric motor rotor bearing, including stack, torsion bar and rotor, the stack is for upper and lower both ends link up the structure, the torsion bar stretches into in the stack and can follow the stack and go up and down, the rotor includes the pivot, the interference cover is equipped with the bearing in the pivot, pivot and bearing can stretch into in the stack and bearing crimping to the stack bottom in the lump, the torsion bar is used for the roof pressure pivot and makes the rotor break away from the interference fit with the bearing until the pivot with the radial stack direction motion of leaving. The utility model discloses utilize simple structural design to realize the convenient dismouting of the epaxial bearing of electric motor rotor, can not damage rotor and bearing, can effectively replace the hydraulic press and dismantle the bearing mode, effectively controlled cost of maintenance.

Description

Motor rotor bearing dismantles frock

Technical Field

The utility model relates to a bearing dismouting technical field especially relates to a motor rotor bearing dismantles frock.

Background

In the fiber spinning production process, a winder is required to be used for winding and forming, the current dismounting of a rotor bearing of the winder motor is to separate the bearing through a hydraulic press, as described in CN201320729883.0, a hydraulic puller using platform comprising a fixed frame, a bearing and the like is fixedly arranged on a support frame, a plurality of groups of mutually corresponding limiting crosspiece holes are arranged on arms at two sides of the fixed frame, a through hole is arranged on the lower side wall of the fixed frame, the hydraulic puller using platform is arranged at the rear side of the fixed frame, a tool box is positioned below the platform, and the hydraulic puller is arranged on the hydraulic puller using platform; the following two types of mounting methods are used for the above components: (1) A bearing is arranged on the upper edge of the through hole, the jack is fixedly arranged on the upper side wall of the fixed frame, the jack is connected with the mounting sleeve, and a space reserved for placing a motor rotor is arranged between the bearing and the mounting sleeve; (2) a limit crosspiece is added on the basis; when the bearing is disassembled, the motor spindle bearing to be disassembled is sleeved on a tool box of the equipment, and the bearings at two ends of the spindle are disassembled one by using the split type hydraulic puller. However, the hydraulic machine has unstable pressure during operation, and once the pressure is unbalanced and the local pressure is too high, the rotor is stressed unevenly, so that the rotor is deformed and the bearing is damaged, which undoubtedly increases the maintenance cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's is not enough, provides a motor rotor bearing dismantles frock, utilizes simple structural design to realize the convenient dismouting of the epaxial bearing of motor rotor, can not damage rotor and bearing, can effectively replace the hydraulic press and dismantle the bearing mode, effectively controlled cost of maintenance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a frock is dismantled to electric motor rotor bearing, includes barrel holder, torsion bar and rotor, the barrel holder is upper and lower both ends link up the structure, the torsion bar stretches into in the barrel holder and can follow the barrel holder and go up and down, the rotor includes the pivot, interference fit is equipped with the bearing in the pivot, pivot and bearing can stretch into in the barrel holder and bearing crimping to barrel holder bottom in the lump, the torsion bar is used for the roof pressure pivot and makes the rotor break away from the barrel holder direction motion until the pivot breaks away from the interference fit with the bearing with the pivot in order to radially.

The torsion bar extends into the inner cavity of the barrel frame and is in threaded connection with the barrel frame.

The barrel frame comprises a hollow first barrel part, the first barrel part comprises a first inner cavity and a second inner cavity which are mutually communicated, the torsion bar comprises a screw part, and the screw part is in threaded connection with the second inner cavity after penetrating through the first inner cavity and extending into the second inner cavity.

The first lumen has an inner diameter that is smaller in size than the second lumen.

The barrel frame further comprises a second barrel part connected with the first barrel part, the second barrel part comprises a third inner cavity for the bearing and the rotating shaft to extend into, and the third inner cavity is communicated with the second inner cavity.

The side wall of the second cylinder part is sunken to form a second notch along the length direction of the second cylinder part, and the bearing and the rotating shaft enter the third inner cavity together through the second notch.

The side wall of the first cylinder is recessed to form a first notch along the length direction of the first cylinder, and the first notch and the second notch are located on the same side and are communicated with each other.

The second cylinder part comprises a third notch penetrating through the bottom of the second cylinder part, the bearing is connected to the bottom of the second cylinder part in a pressing mode, and the rotating shaft penetrates through the third notch.

The utility model has the advantages that: through putting into the barrel holder with pivot and bearing, utilize the top thrust effect of the support of second section of thick bamboo portion bottom to the bearing and torsion bar to the pivot, make pivot and bearing break away from to be connected, the device utilizes simple structural design to realize the convenient dismouting of epaxial bearing of electric motor rotor, can not damage rotor and bearing, can effectively replace the hydraulic press and dismantle the bearing mode, effectively controlled cost of maintenance.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a perspective view of the cartridge holder of the present invention.

In the figure: the torsion bar type motor comprises a barrel frame 1, a first barrel part 11, a first inner cavity 111, a second inner cavity 112, a first notch 113, a second barrel part 12, a third inner cavity 121, a second notch 122, a third notch 123, a bottom plate 124, a barrel wall 125, a torsion bar 2, a screw part 21, a cross rod part 22, a rotor 3, a rotating shaft 31, an A shaft part 311, a B shaft part 312 and a bearing 4.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-2, a motor rotor bearing dismounting tool comprises a barrel frame 1, a torsion bar 2 and a rotor 3, wherein the barrel frame 1 is a structure with a through structure at the upper end and the lower end, the torsion bar 2 extends into the barrel frame 1 and can ascend and descend along the barrel frame 1, actually, the torsion bar 2 extends into an inner cavity of the barrel frame 1 and is in threaded connection with the barrel frame 1, and the torsion bar 2 is screwed to realize the ascending and descending of the torsion bar 2.

The cartridge holder 1 comprises a hollow first cartridge 11, the first cartridge 11 comprises a first inner cavity 111 and a second inner cavity 112 which are communicated with each other, the inner diameter of the first inner cavity 111 is smaller than that of the second inner cavity 112, the torsion bar 2 comprises a screw part 21, and the screw part 21 is screwed through the first inner cavity 111 and extends into the second inner cavity 112. The torsion bar 2 further includes a cross bar portion 22 vertically connected to the screw portion 21, and the cross bar portion 22 is located outside the barrel frame 1 and is used for applying force to screw the torsion bar 2.

The rotor 3 comprises a rotating shaft 31, a bearing 4 is arranged on the rotating shaft 31 in an interference fit mode, the rotating shaft 31 and the bearing 4 can extend into the barrel frame 1 together, the bearing 4 is connected to the bottom of the barrel frame 1 in a pressing mode, and the torsion bar 2 is used for jacking the rotating shaft 31 and enabling the rotor 3 to move in the direction of radially leaving the barrel frame 1 until the rotating shaft 31 is separated from the interference fit with the bearing 4.

The cartridge holder 1 further comprises a second cylinder part 12 connected with the first cylinder part 11, the second cylinder part 12 comprises a third inner cavity 121 into which the bearing 4 and the rotating shaft 31 extend, and the third inner cavity 121 is communicated with the second inner cavity 112. The third lumen 121 has a larger inner diameter dimension than the second lumen 112. The whole barrel frame 1 is of an integrally formed structure, the barrel frame 1 is integrally cylindrical, the first inner cavity 111, the second inner cavity 112 and the third inner cavity 121 are all of cylindrical inner cavity structures, and the inner diameter of the first inner cavity 111, the inner diameter of the second inner cavity 112 and the inner diameter of the third inner cavity 121 are sequentially increased.

The side wall of the second cylinder portion 12 is recessed to form a second notch 122 along the length direction (i.e. radial direction) of the second cylinder portion 12, and the bearing 4 and the rotating shaft 31 enter the third cavity 121 through the second notch 122. The width of the second notch 122 is smaller than the diameter of the cartridge holder 1, and the second notch 122 is provided for mounting the bearing 4 and the rotating shaft 31, and for observing the separation condition of the bearing 4 and the rotating shaft 31 when the operation of ejecting the rotor 3 is performed.

The side wall of the first cylinder 11 is recessed to form a first notch 113 along the length direction (i.e. radial direction) of the first cylinder 11, and the first notch 113 and the second notch 122 are located on the same side and are communicated with each other. The opening size of the first notch 113 is smaller than that of the second notch 122, and the width of the first notch 113 is smaller than that of the second notch 122. If the rotating shaft 31 is long and the rotating shaft 31 and the bearing 4 are placed together, the end of the rotating shaft 31 enters through the first notch 113, and the first notch 113 is provided to fit the second notch 122 to fit the bearing 4 and the rotating shaft 31, and to observe the separation of the bearing 4 and the rotating shaft 31 when the operation of ejecting the rotor 3 is performed. If the rotating shaft 31 is short, the rotating shaft 31 and the bearing 4 enter the third cavity 121 together through the second notch 122.

The second cylinder part 12 includes a third notch 123 penetrating through the bottom thereof, the bearing 4 is pressed to the bottom of the second cylinder part 12, and the rotating shaft 31 passes through the third notch 123. The third gap 123 and the second gap 122 are distributed at 90 degrees, the third gap 123 is a structure surrounded by three sides, the opening end of the third gap 123 faces the second gap 122, the second cylinder 12 comprises a bottom plate 124 and an annular cylinder wall 125 vertically extended from the peripheral edge of the bottom plate 124, the third gap 123 is arranged at the center of the bottom plate 124, the other end of the cylinder wall 125 is connected with the first cylinder 11, the third gap 123 is square, the third gap 123 is vertically communicated with the second gap 122, and the caliber of the third gap 123 is smaller than that of the bearing 4. The bottom plate 124 is designed to abut against the bearing 4 during the operation of ejecting the rotor 3, thereby achieving detachment. In the prior art, the rotating shaft 31 of the motor rotor is a multi-step shaft structure, the rotating shaft 31 comprises an A shaft part 311 and a B shaft part 312 which are connected with each other, the outer diameter of the B shaft part 312 is larger than that of the A shaft part 311, the A shaft part 311 is positioned at the upper end of the B shaft part 312, the width of the third gap 123 is larger than that of the B shaft part 312, so that the B shaft part 312 passes through the third gap 123, and the width of the third gap 123 is smaller than that of the bearing 4, so that the bearing 4 can be pressed on the bottom of the second cylinder part 12.

When the bearing is disassembled and assembled, the rotor 3 and the bearing 4 are placed into the barrel frame 1, the bearing 4 passes through the second notch 122 to enter the third inner cavity 121 and is pressed at the bottom of the second barrel part 12, the rotating shaft 31 above the bearing 4 passes through the second notch 122 to enter the third inner cavity 121 or passes through the first notch 113 and the second notch 122 to enter the second inner cavity 112 and the third inner cavity 121, the rotating shaft 31 below the bearing 4 enters the third notch 123 to support the barrel frame 1 and the torsion bar 2 to be screwed, the torsion bar 2 is screwed continuously after the screw part 21 abuts against the rotating shaft 31, the rotor 3 is gradually withdrawn from the barrel frame 1 under the action of the jacking force of the torsion bar 2 on the rotating shaft 31 and the supporting force of the bottom of the second barrel part 12 on the bearing 4, and the torsion bar 2 is stopped to be screwed when the bearing 4 is separated from the rotating shaft 31. The bearings 4 are installed at the upper end and the lower end of the motor rotor rotating shaft 31, and after the bearing 4 at one end is disassembled, the motor rotor is overturned to place another bearing 4 into the third inner cavity 121 to complete disassembly.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a frock is dismantled to electric motor rotor bearing, includes barrel holder (1), torsion bar (2) and rotor (3), its characterized in that: the improved structure is characterized in that the barrel frame (1) is of a through structure with the upper end and the lower end, the torsion bar (2) extends into the barrel frame (1) and can lift along the barrel frame (1), the rotor (3) comprises a rotating shaft (31), a bearing (4) is sleeved on the rotating shaft (31) in an interference fit mode, the rotating shaft (31) and the bearing (4) can extend into the barrel frame (1) in the whole and the bearing (4) is in compression joint with the bottom of the barrel frame (1), and the torsion bar (2) is used for jacking the rotating shaft (31) and enabling the rotor (3) to move in a direction of radially leaving the barrel frame (1) until the rotating shaft (31) is separated from the interference fit with the bearing (4).

2. The motor rotor bearing disassembling tool according to claim 1, characterized in that: the torsion bar (2) extends into the inner cavity of the barrel frame (1) and is in threaded connection with the barrel frame (1).

3. The motor rotor bearing disassembling tool according to claim 2, characterized in that: the barrel frame (1) comprises a hollow first barrel part (11), the first barrel part (11) comprises a first inner cavity (111) and a second inner cavity (112) which are communicated with each other, the torsion bar (2) comprises a screw rod part (21), and the screw rod part (21) penetrates through the first inner cavity (111) in a threaded mode and extends into the second inner cavity (112).

4. The motor rotor bearing disassembling tool according to claim 3, characterized in that: the inner diameter of the first inner cavity (111) is smaller than that of the second inner cavity (112).

5. The motor rotor bearing disassembling tool according to claim 3, characterized in that: the barrel frame (1) further comprises a second barrel part (12) connected with the first barrel part (11), the second barrel part (12) comprises a third inner cavity (121) for the bearing (4) and the rotating shaft (31) to extend into, and the third inner cavity (121) is communicated with the second inner cavity (112).

6. The motor rotor bearing disassembling tool according to claim 5, characterized in that: the side wall of the second cylinder part (12) is sunken to form a second notch (122) along the length direction of the second cylinder part (12), and the bearing (4) and the rotating shaft (31) enter the third inner cavity (121) together through the second notch (122).

7. The motor rotor bearing disassembling tool according to claim 6, characterized in that: the side wall of the first cylinder part (11) is sunken to form a first notch (113) along the length direction of the first cylinder part (11), and the first notch (113) and the second notch (122) are positioned on the same side and are communicated with each other.

8. The motor rotor bearing disassembling tool according to claim 5, characterized in that: the second barrel part (12) comprises a third notch (123) penetrating through the bottom of the second barrel part, the bearing (4) is connected to the bottom of the second barrel part (12) in a pressing mode, and the rotating shaft (31) penetrates through the third notch (123).