CN215334208U - Transition fit replaces interference fit type commutator - Google Patents
Transition fit replaces interference fit type commutator Download PDFInfo
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- CN215334208U CN215334208U CN202121817501.0U CN202121817501U CN215334208U CN 215334208 U CN215334208 U CN 215334208U CN 202121817501 U CN202121817501 U CN 202121817501U CN 215334208 U CN215334208 U CN 215334208U
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- shell
- output shaft
- round cover
- sealing
- type commutator
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Abstract
The utility model relates to a transition fit instead of an interference fit type commutator, which comprises a shell, a bearing, a round cover, an output shaft, a power part and a sealing part, wherein the shell is provided with a bearing hole; the improved sealing device is characterized in that a shell cavity is formed in the shell, the round cover is in contact with the shell through an adjusting gasket, the round cover is connected with the shell through a connecting piece, a gap is formed between the shell and the round cover, the sealing piece is specifically located in the gap, the sealing piece is located on the outer side of the output shaft, the output shaft penetrates through the shell, bevel gears are arranged on the power piece and the output shaft, and the bevel gears on the output shaft are meshed with the bevel gears on the power piece. The utility model provides a transition fit type commutator which replaces an interference fit type commutator, is convenient to assemble, reduces the assembly cost, avoids the use of glue, and saves the production cost.
Description
Technical Field
The utility model relates to the field of commutators, in particular to a transition fit type commutators replacing interference fit.
Background
The commutator is a device for changing the output direction of the output shaft; the output direction of the output shaft can be changed, and simultaneously the magnitude of the torque force output by the output shaft can be changed.
The existing commonly used commutator is generally in interference fit between an output shaft and a shell, and then glue is applied to the joint of a round cover and the shell, so that the tightness of the commutator is ensured, the interference fit installation is complex, the installation cost is high, and the glue is wasted when the glue is applied.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the transition fit type commutator is used for replacing an interference fit type commutator, and the problems are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a transition fit replaces interference fit type commutator, including body, bearing, dome, output shaft, power part and seal; the improved sealing device is characterized in that a shell cavity is formed in the shell, the round cover is in contact with the shell through an adjusting gasket, the round cover is connected with the shell through a connecting piece, a gap is formed between the shell and the round cover, the sealing piece is specifically located in the gap, the sealing piece is located on the outer side of the output shaft, the output shaft penetrates through the shell, bevel gears are arranged on the power piece and the output shaft, and the bevel gears on the output shaft are meshed with the bevel gears on the power piece.
Further, the sealing element is in contact with the bearing, the sealing element is made of flexible materials, the round cover is in contact with the output shaft through the bearing, the output shaft penetrates through the shell cavity, and the round cover is provided with a pressing surface.
Further, the sealing element is in contact with the shell, the sealing element is made of elastic materials, the number of the round covers and the number of the bearings are two, and the pressing surface is in contact with the bearings.
Further, the sealing element is in contact with the round cover, the connecting element is a screw rod, and a rotating shaft of the power element is connected with the bevel gear.
Further, the cross section of the sealing element is circular, the sealing element is specifically an O-shaped ring, and the power element is specifically a planetary reducer or a motor.
The utility model has the beneficial effects that: the utility model provides a transition fit replaces interference fit type commutator, which comprises a housin, a bearing, the dome, the output shaft, power spare and sealing member use of mutually supporting, through being used in the mode of output shaft outside installation sealing washer, replace to beat the glue and ensure the commutator leakproofness, the sealing washer compresses tightly casing and output shaft and makes the connection between the two more stable after the sealing washer is compressed simultaneously, the transition fit who realizes output shaft and casing replaces interference fit's effect, and convenient assembling, the assembly cost is reduced, the use of glue has been avoided, and the production cost is saved.
Drawings
Fig. 1 is a partial cross-sectional view of the overall construction of a transition fit type commutator of the present invention instead of an interference fit type.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1. a housing; 2. a bearing; 3. a dome; 31. pressing the dough; 4. a connecting member; 5. adjusting the gasket; 6. a gap; 7. an output shaft; 8. a bevel gear; 9. a power member; 10. a shell cavity; 11. and a seal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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 utility model and are not intended to limit the utility model.
Referring to fig. 1 to 2, a transition fit type commutator instead of an interference fit type comprises a housing 1, a bearing 2, a dome 3, an output shaft 7, a power member 9 and a sealing member 11; the shell 1 is provided with a shell cavity 10 for placing an output shaft 7, a bevel gear 8 and other parts which need to be assembled, the round cover 3 is contacted with the shell 1 through an adjusting gasket 5, used for adjusting the distance between the round cover 3 and the shell 1 to achieve the best installation effect, the round cover 3 is connected with the shell 1 through a connecting piece 4, a gap 6 is arranged between the shell 1 and the round cover 3, for placing a seal 11, said seal 11 being in particular located in the gap 6, said seal 11 being located outside the output shaft 7, the sealing device is used for sealing after being pressed, and simultaneously the pressing shell and the output shaft enable the connection between the two to be more stable, the output shaft 7 penetrates through the shell 1, bevel gears 8 are arranged on the power element 9 and the output shaft 7, the bevel gear 8 on the output shaft 7 is engaged with the bevel gear 8 on the power element 9 for transmitting kinetic energy.
The sealing element 11 is in contact with the bearing 2, the sealing element 11 is made of a flexible material for ensuring that the sealing element 11 can be compressed, the round cap 3 is in contact with the output shaft 7 through the bearing 2, the output shaft 7 penetrates through the shell cavity 10, and the round cap 3 is provided with a pressing surface 31 for pressing the bearing 2.
The sealing element 11 is in contact with the housing 1, the sealing element 11 is made of elastic material, the two circular covers 3 and the two bearings 2 are used for supporting two ends of the output shaft 7, and the pressing surface 31 is in contact with the bearings 2.
The sealing element 11 is in contact with the round cover 3, the connecting element 4 is a screw rod for convenient locking, and the rotating shaft of the power element 9 is connected with the bevel gear 8 for driving the bevel gear 8 to rotate and providing power for the commutator.
The section of the sealing element 11 is circular, the sealing element 11 is specifically an O-shaped ring, and the power element 9 is specifically a planetary reducer or a motor.
The working principle of the utility model is as follows: when the commutator begins to be installed: firstly, a power part 9 and an output shaft 7 are arranged in a shell 1, and then bearings 2 on two sides are arranged on the outer side of the output shaft 7, at the moment, the bearings 2 tightly push against a step and a bevel gear 8 on the output shaft 7, and meanwhile, the outer side of the bearing 2 contacts the inner wall of a shell cavity 10; and then, placing an adjusting gasket 5 with proper thickness on the shell 1, then placing a sealing member 11 on the outer side of the output shaft 7, pushing the sealing member 11 to be positioned in the gap 6, wherein the sealing member 11 contacts the adjusting gasket 5, connecting the round cover 3 and the shell 1 together through the connecting piece 4, and completing the installation of the commutator.
The above examples are intended to further illustrate the present invention, but are not intended to limit the utility model to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.
Claims (5)
1. The utility model provides a transition fit replaces interference fit type commutator which characterized in that: comprises a shell (1), a bearing (2), a round cover (3), an output shaft (7), a power part (9) and a sealing part (11); the improved energy-saving device is characterized in that a shell cavity (10) is formed in the shell (1), the round cover (3) is in contact with the shell (1) through an adjusting gasket (5), the round cover (3) is connected with the shell (1) through a connecting piece (4), a gap (6) is formed between the shell (1) and the round cover (3), the sealing piece (11) is specifically located in the gap (6), the sealing piece (11) is located on the outer side of the output shaft (7), the output shaft (7) penetrates through the shell (1), bevel gears (8) are arranged on the power piece (9) and the output shaft (7), and the bevel gears (8) on the output shaft (7) are meshed with the bevel gears (8) on the power piece (9).
2. A transition fit instead of interference fit type commutator according to claim 1, wherein: the sealing element (11) is in contact with the bearing (2), the sealing element (11) is made of flexible materials, the round cover (3) is in contact with the output shaft (7) through the bearing (2), the output shaft (7) penetrates through the shell cavity (10), and a pressing surface (31) is arranged on the round cover (3).
3. A transition fit instead of interference fit type commutator according to claim 2, wherein: the sealing element (11) is in contact with the shell (1), the sealing element (11) is made of elastic materials, the number of the round covers (3) and the number of the bearings (2) are two, and the pressing surface (31) is in contact with the bearings (2).
4. A transition fit instead of interference fit type commutator according to claim 1, wherein: the sealing element (11) is in contact with the round cover (3), the connecting element (4) is a screw rod in particular, and a rotating shaft of the power element (9) is connected with the bevel gear (8).
5. A transition fit instead of interference fit type commutator according to claim 4, wherein: the section of the sealing element (11) is circular, the sealing element (11) is an O-shaped ring, and the power element (9) is a planetary reducer or a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817501.0U CN215334208U (en) | 2021-08-05 | 2021-08-05 | Transition fit replaces interference fit type commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817501.0U CN215334208U (en) | 2021-08-05 | 2021-08-05 | Transition fit replaces interference fit type commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334208U true CN215334208U (en) | 2021-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121817501.0U Active CN215334208U (en) | 2021-08-05 | 2021-08-05 | Transition fit replaces interference fit type commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334208U (en) |
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2021
- 2021-08-05 CN CN202121817501.0U patent/CN215334208U/en active Active
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