CN220313010U - Electric tool connection structure - Google Patents
Electric tool connection structure Download PDFInfo
- Publication number
- CN220313010U CN220313010U CN202321414681.7U CN202321414681U CN220313010U CN 220313010 U CN220313010 U CN 220313010U CN 202321414681 U CN202321414681 U CN 202321414681U CN 220313010 U CN220313010 U CN 220313010U
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- elastic unit
- rotor
- output shaft
- connector
- connection structure
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- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a connecting structure of an electric tool. The device comprises an output shaft and a rotor, wherein a gap is formed between the inner end of the output shaft and the outer end of the rotor; the motor rotor is characterized by further comprising an elastic unit, wherein one end of the elastic unit is connected to the inner end of the output shaft, and the other end of the elastic unit is connected to the outer end of the rotor. According to the utility model, the elastic unit is used for replacing the existing rigid connecting piece, and the output shaft and the rotor are in soft connection, so that the noise of the product in use is reduced, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of electric tools, in particular to a connecting structure of an electric tool.
Background
The electric grinder is commonly called a grinding head machine, and is an electric tool for sanding by using a grinding wheel or a grinding disc, wherein the electric grinder comprises a rotor and an output shaft, the output shaft and the rotor form transmission fit by a rigid connecting piece, and one end of the rigid connecting piece is connected with the output shaft, and the other end of the rigid connecting piece is connected with the rotor, as shown in fig. 4.
The mode of adopting the rigid connecting piece is loud in the actual use process, and the collision among the components is easy to cause the damage among the components, and the service life is short, so that the applicant improves.
Disclosure of Invention
The utility model provides a connecting structure of an electric tool, which aims at the defects in the prior art.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the electric tool connecting structure comprises an output shaft and a rotor, wherein a gap is formed between the inner end of the output shaft and the outer end of the rotor;
the motor rotor is characterized by further comprising an elastic unit, wherein one end of the elastic unit is connected to the inner end of the output shaft, and the other end of the elastic unit is connected to the outer end of the rotor.
In the above scheme, preferably, one end of the elastic unit is fixed on the inner end of the output shaft, and the other end is fixed on the outer end of the rotor.
In the above aspect, preferably, the elastic unit is a spring or a torsion spring.
In the above aspect, preferably, the inner end of the output shaft is flat, and the elastic unit is wrapped and assembled along the outer wall thereof.
In the above aspect, preferably, the outer end of the rotor is flat, and the elastic unit is wrapped and assembled along an outer wall thereof.
In the above aspect, preferably, the inner end of the output shaft includes a first connector, and one end of the elastic unit is connected to the first connector.
In the above aspect, preferably, the outer end of the rotor includes a second connector, and one end of the elastic unit is connected to the second connector.
In the above aspect, preferably, the first connector is flat, and the elastic unit is wrapped and assembled along an outer wall thereof.
In the above aspect, preferably, the second connector is flat, and the elastic unit is wrapped and assembled along an outer wall thereof.
The beneficial effects of the utility model are as follows:
according to the utility model, the elastic unit is used for replacing the existing rigid connecting piece, and the output shaft and the rotor are in soft connection, so that the noise of the product in use is reduced, and the service life is prolonged.
Drawings
FIG. 1 is a schematic diagram of an external unit according to the present utility model.
FIG. 2 is a schematic diagram showing a sectional state of the present utility model.
Fig. 3 is a schematic diagram of the fit state of the output shaft, the rotor and the elastic unit according to the present utility model.
Fig. 4 is a schematic view of a prior art rigid connection.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and detailed description:
referring to fig. 1 to 3, a connection structure of an electric tool includes an output shaft 1 and a rotor 2, the rotor 2 is used as power output, power is transmitted to the output shaft 1 through an elastic unit 3, and the power output is realized by means of the action of the output shaft 1.
As a preferred way, the rotor is arranged concentrically with the output shaft 1, the elastic unit 3 forms a soft connection between the two, in this embodiment, a gap 4 is provided between the inner end of the output shaft 1 and the outer end of the rotor 2, the existence of the gap 4 avoids the mutual friction between the rotor 2 and the output shaft 1, and the arrangement of the elastic unit 3 can provide a supporting force for the output shaft 1 to move transversely.
In this embodiment, the inner end of the output shaft 1 includes a first connector 11, the outer end of the rotor 2 includes a second connector 21 corresponding to the first connector 11, one end of the elastic unit 3 is connected to the first connector 11, the other end is connected to the second connector 21, alternatively, the first connector 11 and the second connector 21 are flat, and two ends of the elastic unit 3 are wound along the outer wall of the first connector 11 and the outer wall of the second connector 21 respectively and wrap the flat connectors.
Alternatively, one end of the elastic unit 3 is fixed on the first connector 11, and the other end is fixed on the second connector 21, and the elastic unit 3 is a spring or torsion spring.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The utility model provides an electric tool connection structure, includes output shaft and rotor, its characterized in that: a gap is formed between the inner end of the output shaft and the outer end of the rotor;
the motor rotor is characterized by further comprising an elastic unit, wherein one end of the elastic unit is connected to the inner end of the output shaft, and the other end of the elastic unit is connected to the outer end of the rotor.
2. The power tool connection structure according to claim 1, wherein: one end of the elastic unit is fixed on the inner end of the output shaft, and the other end of the elastic unit is fixed on the outer end of the rotor.
3. The power tool connection structure according to claim 1, wherein: the elastic unit is a spring or torsion spring.
4. The power tool connection structure according to claim 1, wherein: the shape of the inner end of the output shaft is flat, and the elastic unit is wrapped and assembled along the outer wall of the elastic unit.
5. The power tool connection structure according to claim 1 or 4, wherein: the outer end of the rotor is flat, and the elastic unit is wrapped and assembled along the outer wall of the rotor.
6. The power tool connection structure according to claim 1, wherein: the inner end of the output shaft comprises a first connector, and one end of the elastic unit is connected to the first connector.
7. The power tool connection structure according to claim 1 or 6, wherein: the outer end of the rotor comprises a second connector, and one end of the elastic unit is connected to the second connector.
8. The power tool connection structure according to claim 6, wherein: the first connector is flat in shape, and the elastic unit is wrapped and assembled along the outer wall of the elastic unit.
9. The power tool connection structure according to claim 7, wherein: the second connector is flat in shape, and the elastic unit is wrapped and assembled along the outer wall of the second connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414681.7U CN220313010U (en) | 2023-06-06 | 2023-06-06 | Electric tool connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414681.7U CN220313010U (en) | 2023-06-06 | 2023-06-06 | Electric tool connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220313010U true CN220313010U (en) | 2024-01-09 |
Family
ID=89413002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321414681.7U Active CN220313010U (en) | 2023-06-06 | 2023-06-06 | Electric tool connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220313010U (en) |
-
2023
- 2023-06-06 CN CN202321414681.7U patent/CN220313010U/en active Active
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| GR01 | Patent grant |