CN210949481U

CN210949481U - Labor-saving nut

Info

Publication number: CN210949481U
Application number: CN201921144271.9U
Authority: CN
Inventors: 黄绍端; 张武茹; 白伟; 赵美茹; 黄圣琳; 倪洪海
Original assignee: Yongji Zhong Car Electrical And Electrical Equipment Repair Co ltd
Current assignee: Yongji Zhong Car Electrical And Electrical Equipment Repair Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-07-07
Anticipated expiration: 2029-07-19

Abstract

The utility model is suitable for a motor assembly technical field provides a laborsaving nut, through setting up the nut, thrust ball bearing and plane apron, the nut is recess shape structure and has a notch, a bolt hole has been seted up on the diapire in the face of the notch of nut, thrust ball bearing sets up in the nut, plane apron lid is established on the notch of nut, a through-hole has been seted up at the middle part of plane apron, thereby when the construction bolt, pass the bolt plane apron, the diapire of thrust ball bearing and nut, then twist in the screw hole of motor, the bolt passes through nut contact motor end cover, the bolt can not directly rub with the motor end cover, and the bolt is rotating the in-process, rotates through thrust ball bearing, has reduced the impaired of frictional force and has also reduced the motor end cover, the utility model discloses when having the installation or dismantling the motor end cover, can not hinder frame screw thread and end cover surface, And the labor intensity is reduced and the production efficiency is improved.

Description

Labor-saving nut

Technical Field

The utility model belongs to the technical field of the motor assembly, especially, relate to a laborsaving nut.

Background

Various alternating current and direct current motors, especially traction motor, end cover and frame tang are interference fit, need assemble rotor and the end cover is impressed the stator tang through two or three technology bolts when the motor assembly, and the bolt can cause the strain or press the wound to the end cover during operation process, influences motor accessories appearance quality, and the strain can cause the bolt pulling force increase simultaneously, damages partial screw thread, causes the motor to repair the probability increase when newly-built, repair.

SUMMERY OF THE UTILITY MODEL

The utility model provides a labor-saving nut, the bolt can cause the problem of strain or crushing injury to the end cover when aiming at solving operation process.

The utility model is realized in such a way that the labor-saving nut comprises a nut, a thrust ball bearing and a plane cover plate;

the nut is of a groove-shaped structure and is provided with a notch, a bolt hole is formed in the bottom wall of the nut facing the notch, the thrust ball bearing is arranged in the nut, the plane cover plate is covered on the notch of the nut, and a through hole is formed in the middle of the plane cover plate.

The utility model discloses still provide preferred, thrust ball bearing with be provided with a cushion between the plane apron, the cushion is the loop configuration.

The utility model discloses it is preferred still to provide, the plane apron passes through welded fastening and is in on the nut.

The utility model discloses it is preferred still to provide, the bolt hole with the axial lead coincidence of through-hole.

The utility model discloses it is preferred still to provide, the surface of the diapire of nut is smooth surface.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a labor-saving nut, through setting up the nut, thrust ball bearing and plane apron, the nut just has a notch for recess shape structure, a bolt hole has been seted up on the diapire in the face of notch of nut, thrust ball bearing sets up in the nut, plane apron lid is established on the notch of nut, a through-hole has been seted up at the middle part of plane apron, thereby when the construction bolt, pass the plane apron with the bolt, the diapire of thrust ball bearing and nut, then twist in the screw hole of motor, the bolt passes through nut contact motor end cover, the bolt can not with motor end cover direct friction, and the bolt is rotating the in-process, it is rotatory through thrust ball bearing, the impaired that frictional force has also reduced the motor end cover has been reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of a labor-saving nut of the present invention;

fig. 2 is a schematic structural view of the nut of the present invention;

fig. 3 is a schematic structural view of the thrust ball bearing of the present invention;

fig. 4 is a schematic structural diagram of the flat cover plate of the present invention.

In the figure: 1-nut, 2-thrust ball bearing, 3-plane cover plate, 4-bolt and 5-cushion block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the present invention provides a technical solution: a labor-saving nut comprises a nut 1, a thrust ball bearing 2 and a plane cover plate 3.

Nut 1 is recess shape structure and has a notch, has seted up a bolt hole on the diapire in the face of the notch of nut 1, and thrust ball bearing 2 sets up in

nut

1, and 3 lids of plane apron are established on nut 1's notch, and a through-hole has been seted up at the middle part of plane apron 3.

In this embodiment, nut 1 is used for contacting the shell of motor, the notch is used for installing thrust ball bearing 2, the bolt hole is used for supplying bolt 4 to pass, plane apron 3 is used for spacing thrust ball bearing 2, and plane apron 3 fixes on nut 1, the through-hole on the plane apron 3 also is used for supplying bolt 4 to pass, when installing bolt 4 on the motor, pass plane apron 3 with bolt 4 in proper order, thrust ball bearing 2 and nut 1, then in the screw hole of screw in the wrong income motor, bolt 4 passes through nut 1 contact motor end cover, bolt 4 can not with motor end cover direct friction, and bolt 4 is in the rotation in-process, it is rotatory through thrust ball bearing 2, reduced frictional force and also reduced the impaired of motor end cover, it is also more laborsaving.

Further, a cushion block 5 is arranged between the thrust ball bearing 2 and the plane cover plate 3, and the cushion block 5 is of an annular structure.

In the present embodiment, the spacer 5 is used for the bolt 4 to contact the thrust ball bearing 2, so that the bolt rotation is more stable.

Further, the flat cover plate 3 is fixed to the nut 1 by welding.

In the present embodiment, the flat cover plate 3 is fixed to the nut 1 by spot welding, so that the integrity is improved and the use is safer.

Further, the bolt holes and the through holes are overlapped by the axial lead.

In the present embodiment, the bolt hole is aligned with the axis of the through hole when the flat cover 3 is fixed.

Further, the outer surface of the bottom wall of the nut 1 is a smooth surface.

In the present embodiment, the nut 1 having the bottom wall with a smooth surface is more stable when in contact with the motor end cover.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back, stretch into plane apron 3, thrust ball bearing 2 and nut 1 with the bolt in proper order, bolt 4 passes through 1 contact motor end cover of nut, bolt 4 can not with the direct friction of motor end cover, and bolt 4 is rotating the in-process, and is rotatory through thrust ball bearing 2, has reduced the impaired of frictional force also reduced the motor end cover, also more laborsaving.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a laborsaving nut which characterized in that: comprises a nut (1), a thrust ball bearing (2) and a plane cover plate (3);

the nut (1) is of a groove-shaped structure and is provided with a notch, a bolt hole is formed in the bottom wall of the notch in the face of the nut (1), the thrust ball bearing (2) is arranged in the nut (1), the plane cover plate (3) covers the notch of the nut (1), and a through hole is formed in the middle of the plane cover plate (3).

2. A labor saving nut as defined in claim 1, wherein: a cushion block (5) is arranged between the thrust ball bearing (2) and the plane cover plate (3), and the cushion block (5) is of an annular structure.

3. A labor saving nut as defined in claim 1, wherein: the plane cover plate (3) is fixed on the nut (1) through welding.

4. A labor saving nut as defined in claim 1, wherein: the bolt holes and the through holes are overlapped by the shaft axis.

5. A labor saving nut as defined in claim 1, wherein: the outer surface of the bottom wall of the nut (1) is a smooth surface.