CN221074966U

CN221074966U - Combined rotating shaft for direct current motor

Info

Publication number: CN221074966U
Application number: CN202322966631.6U
Authority: CN
Inventors: 马志伟; 徐双; 朱熀宏; 范明松
Original assignee: Jingjiang Mingyu Shaft Manufacturing Co ltd
Current assignee: Jingjiang Mingyu Shaft Manufacturing Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-06-04
Anticipated expiration: 2033-11-03

Abstract

The utility model relates to the technical field of direct current motor rotating shafts, and discloses a combined rotating shaft for a direct current motor, which comprises the following components: the rotary shaft comprises a rotary shaft I, a cavity formed in the rotary shaft I, a rotary shaft II arranged on the cavity, a positioning assembly for positioning the rotary shaft II, a fixed block fixedly arranged on the surface of the rotary shaft I, and a combination assembly for combining the rotary shaft I with the rotary shaft II. According to the combined type rotating shaft for the direct current motor, the threaded rod is screwed through the hexagonal groove to drive the threaded rod to rotate, and the threaded rod is connected with the fixing block through threads to change the rotating motion into the linear motion of the pressing plate, so that the pressing plate can extrude and fix the second rotating shaft, and the three groups of pressing plates extrude and fix the second rotating shaft at the same time, so that the fixing effect of the second rotating shaft can be improved.

Description

Combined rotating shaft for direct current motor

Technical Field

The utility model relates to the technical field of direct current motor rotating shafts, in particular to a combined rotating shaft for a direct current motor.

Background

The direct current motor refers to a rotating electrical machine capable of converting direct current electric energy into mechanical energy (direct current motor) or converting mechanical energy into direct current electric energy (direct current generator), which is a motor capable of realizing the mutual conversion between direct current electric energy and mechanical energy, and is a direct current motor for converting electric energy into mechanical energy when it operates as a motor; when the motor is used, the motor drives the rotating shaft to rotate, and then drives other tools to rotate, so that the motor is convenient to use, and the motor needs to combine the rotating shaft to meet the use requirement when in use.

The patent of application number CN202020591027.3 proposes a high-speed traction motor pivot of combination formula be convenient for installation through being provided with the mount pad and changeing the cover, inserts the motor rotation department with the mount pad, and it is fixed to rotate the cover afterwards, changes the cover and drives the extrusion pole and extrude to make the extrusion pole extrude the motor fixedly, can make the mount pad carry out quick installation combination with the motor of different models, easy operation makes the use of pivot main part more convenient, and efficiency is better.

But this patent drives the dead lever through the second spring and changes the cover and fix, because the unstable characteristic of second spring self can lead to the dead lever to change the fixed of cover not stable enough, and then leads to the mount pad to make up not stable enough with the motor of different models.

Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.

Disclosure of utility model

The utility model aims to provide a combined rotating shaft for a direct current motor, which can effectively solve the technical problems.

In order to achieve the purpose of the utility model, the following technical scheme is adopted: a modular spindle for a dc motor, comprising: the rotary shaft comprises a rotary shaft I, a cavity formed in the rotary shaft I, a rotary shaft II arranged on the cavity, a positioning assembly for positioning the rotary shaft II, a fixed block fixedly arranged on the surface of the rotary shaft I, and a combination assembly for combining the rotary shaft I with the rotary shaft II.

The positioning assembly consists of a limiting groove formed in the first rotating shaft, a spring fixedly installed on the limiting groove, a connecting block fixedly installed on the spring, a push rod fixedly connected to the connecting block and a ball rotatably installed at one end of the push rod.

The combined assembly consists of a limit hole formed in the fixed block, a limit rod slidingly connected to the limit hole, a pressing plate fixedly installed on the limit rod, an anti-slip pad fixedly installed on the pressing plate, a threaded rod rotationally connected to the pressing plate and a hexagonal groove formed in the threaded rod.

Further, the positioning assembly is provided with three groups on the cavity at equal intervals.

Further, the fixed block is provided with three groups on the surface of the first rotating shaft.

Further, the anti-slip pads are uniformly distributed on the surface of the pressing plate.

Further, the diameter size of the limiting hole is identical with the diameter size of the limiting rod.

Compared with the prior art, the utility model has the following beneficial effects:

According to the combined type rotating shaft for the direct current motor, the threaded rod is screwed through the hexagonal groove to drive the threaded rod to rotate, and the threaded rod is connected with the fixing block through threads to change the rotating motion into the linear motion of the pressing plate, so that the pressing plate can extrude and fix the second rotating shaft, and the three groups of pressing plates extrude and fix the second rotating shaft at the same time, so that the fixing effect of the second rotating shaft can be improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

FIG. 1 is a schematic view of a combined rotary shaft for a DC motor according to the present utility model;

FIG. 2 is an enlarged view of the assembled shaft of the DC motor of FIG. 1 according to the present utility model;

FIG. 3 is a schematic diagram showing the structure of the cavity and the second shaft of the combined shaft for DC motor according to the present utility model;

FIG. 4 is an enlarged view of the structure of the combined rotary shaft of FIG. 3B for a DC motor according to the present utility model;

Fig. 5 is a schematic structural diagram of a combined assembly of a combined rotating shaft for a dc motor according to the present utility model.

In the figure: 1. a first rotating shaft; 2. a cavity; 3. a second rotating shaft; 4. a positioning assembly; 41. a limit groove; 42. a spring; 43. a connecting block; 44. a push rod; 45. a ball; 5. a fixed block; 6. a combination assembly; 61. a limiting hole; 62. a limit rod; 63. a pressing plate; 64. an anti-slip pad; 65. a threaded rod; 66. hexagonal grooves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. When an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an mechanism is considered to be "connected" to another mechanism, it may be directly connected to the other mechanism or there may be a centering mechanism present at the same time. When an element is considered to be "disposed on" another element, it may be disposed directly on the other element or there may be a centering element present at the same time. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

As shown in fig. 1 to 5, a combined rotary shaft for a dc motor according to the present utility model includes: the rotary shaft I1 is provided with a cavity 2 on the rotary shaft I1, a positioning component 4 is arranged in the cavity 2, a rotary shaft II 3 is arranged on the cavity 2, the positioning component 4 is positioned at the position of the rotary shaft II 3, a fixed block 5 is fixedly arranged on the surface of the rotary shaft I1, the combined component 6 is supported, and the combined component 6 is used for combining the rotary shaft I1 and the rotary shaft II 3.

In the use, insert the inside of pivot two 3 through cavity 2 pivot one 1, then adjust the position of pivot two 3 in cavity 2 inside through locating component 4, guarantee that pivot two 3 and the axis of pivot one 1 are at same horizontal line, then fix pivot two 3 through combination component 6, accomplish the combination of pivot one 1 and pivot two 3.

The locating component 4 is composed of a limiting groove 41 formed in the first rotating shaft 1, a sliding range of the connecting block 43, a spring 42 fixedly installed on the limiting groove 41, a connecting block 43 driving the connecting block 43 and the ejector rod 44 to reset, a connecting piece of the spring 42 and the ejector rod 44, the ejector rod 44 can be prevented from sliding out of the limiting groove 41, the ejector rod 44 is fixedly connected to the connecting block 43, the ejector rod 44 is used for supporting a ball 45, the ball 45 installed at one end of the ejector rod 44 is rotated, the second rotating shaft 3 slides on the surface of the ball 45, the ball 45 simultaneously rotates on one end surface of the ejector rod 44, and friction between the ball 45 and the second rotating shaft 3 can be reduced to the minimum.

The second rotating shaft 3 is inserted into the first rotating shaft 1 through the cavity 2, meanwhile, the second rotating shaft 3 slides on the surface of the ball 45, in the process, the second rotating shaft 3 can squeeze the spring 42 through the ball 45, the ejector rod 44 and the connecting block 43, the spring 42 is stressed to deform, then the spring 42 can push the connecting block 43, the ejector rod 44 and the ball 45 to squeeze the second rotating shaft 3, the axis of the second rotating shaft 3 is positioned on the same horizontal line with the axis of the first rotating shaft 1 as far as possible, when the spring 42 pushes the connecting block 43 to move, the limiting groove 41 can limit the movement of the connecting block 43, the connecting block 43 is prevented from shaking when the connecting block 43 moves, and the positioning effect of positioning the second rotating shaft 3 can be improved through the three groups of positioning assemblies 4.

The combined assembly 6 is formed by arranging a limiting hole 61 on the fixed block 5, limiting a limiting rod 62, sliding the limiting rod 62 on the limiting hole 61, enabling the diameter size of the limiting hole 61 to be identical with the diameter size of the limiting rod 62, sliding the limiting rod 62 inside the limiting hole 61 to limit a pressing plate 63, avoiding shaking of the pressing plate 63 and affecting extrusion fixation of a second rotating shaft 3, fixedly arranging the pressing plate 63 on the limiting rod 62, extruding and fixation of the second rotating shaft 3 through the pressing plate 63, fixedly arranging an anti-slip pad 64 on the pressing plate 63, preventing shaking of the pressing plate 63 when the second rotating shaft 3 is fixed by the second rotating shaft 3, rotating a threaded rod 65 connected to the pressing plate 63, enabling the position of the pressing plate 63 to be adjusted by threaded connection of the threaded rod 65 and the fixed block 5, and enabling the threaded rod 65 to be screwed through the hexagonal groove 66.

The threaded rod 65 is screwed through the hexagonal groove 66, the threaded rod 65 is driven to rotate, the threaded rod 65 is connected with the fixed block 5 through threads, the rotary motion is changed into linear motion of the pressing plate 63, the pressing plate 63 can extrude and fix the second rotating shaft 3, meanwhile, the pressing plate 63 slides in the limiting groove 41 in the moving process, the pressing plate 63 is prevented from shaking in the moving process, the three groups of pressing plates 63 extrude and fix the second rotating shaft 3, the stability of fixing the second rotating shaft 3 can be improved, finally, the friction between the pressing plate 63 and the second rotating shaft 3 can be increased through the multiple groups of anti-slip pads 64, and the fixing effect of the second rotating shaft 3 is improved.

According to the combined rotating shaft for the direct current motor, the threaded rod 65 is screwed through the hexagonal groove 66 to drive the threaded rod 65 to rotate, and the threaded rod 65 is connected with the fixed block 5 through threads to change the rotating motion into the linear motion of the pressing plate 63, so that the pressing plate 63 can extrude and fix the second rotating shaft 3, and the three groups of pressing plates 63 extrude and fix the second rotating shaft 3 at the same time, so that the fixing effect of the second rotating shaft 3 can be improved.

Working principle: when the anti-slip device is used, the rotating shaft II 3 is inserted into the rotating shaft I1 through the cavity 2, meanwhile, the rotating shaft II 3 slides on the surface of the ball 45, the spring 42 is extruded through the ball 45, the ejector rod 44 and the connecting block 43 in the process, the spring 42 is stressed and deformed, then the spring 42 can push the connecting block 43, the ejector rod 44 and the ball 45 to extrude the rotating shaft II 3, the axis of the rotating shaft II 3 and the axis of the rotating shaft I1 are positioned on the same horizontal line as much as possible, when the spring 42 pushes the connecting block 43 to move, the limiting groove 41 can limit the movement of the connecting block 43, the connecting block 43 is prevented from driving the ejector rod 44 and the ball 45 to shake when moving, then the threaded rod 65 is screwed through the hexagonal groove 66, the threaded rod 65 is driven to rotate, the threaded rod 65 is changed into linear movement of the pressing plate 63 through the threaded rod 65, the pressing plate 63 can extrude and fix the rotating shaft II 3, meanwhile, the pressing plate 63 can slide in the limiting groove 41, the pressing plate 63 is prevented from shaking in the moving process, the three groups 63 can simultaneously extrude and fix the rotating shaft II 3, the stability of the rotating shaft 3 can be improved, and the friction effect of the rotating shaft II can be improved, and the friction effect of the rotating shaft 3 can be improved, and the friction effect of the rotating plate 3 can be fixed.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. A modular spindle for a dc motor, comprising: the device comprises a first rotating shaft, a cavity formed in the first rotating shaft, a second rotating shaft arranged in the cavity, a positioning assembly for positioning the second rotating shaft, a fixed block fixedly arranged on the surface of the first rotating shaft, and a combination assembly for combining the first rotating shaft with the second rotating shaft;

The positioning component consists of a limit groove formed in the first rotating shaft, a spring fixedly arranged on the limit groove, a connecting block fixedly arranged on the spring, a push rod fixedly connected to the connecting block and a ball rotatably arranged at one end of the push rod;

2. A modular rotor for a dc motor as claimed in claim 1 wherein said positioning members are equally spaced apart on said cavity.

3. A combined rotary shaft for a direct current motor as claimed in claim 1, wherein the fixing block is provided with three groups on a surface of the first rotary shaft.

4. A modular rotor for a dc motor as claimed in claim 1, wherein said anti-skid pads are uniformly distributed on the surface of said platen.

5. A modular spindle for a dc motor as set forth in claim 1, wherein the diameter of the limiting aperture is sized to match the diameter of the limiting rod.