CN216529749U - High-stability air compressor motor commutator - Google Patents
High-stability air compressor motor commutator Download PDFInfo
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- CN216529749U CN216529749U CN202122282262.XU CN202122282262U CN216529749U CN 216529749 U CN216529749 U CN 216529749U CN 202122282262 U CN202122282262 U CN 202122282262U CN 216529749 U CN216529749 U CN 216529749U
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Abstract
High stability air compressor machine motor commutator. Relates to the technical field of commutators. The structure is firm, and the jump can be prevented. The commutator bar comprises commutator bars and mica sheets which are annularly arranged on the outer surface of a matrix, wherein the commutator bars and the mica sheets are arranged at intervals, at least two grooves are formed in the lower parts of the commutator bars, and a convex block is formed between every two adjacent grooves; the bottom of the commutator segment is provided with a cavity, the outer wall of the bottom of the commutator segment is provided with a plurality of through holes communicated with the cavity, sealing plates are arranged in the through holes, the sealing plates completely seal the through holes, and the through holes are in a negative pressure state; the base fills the cavity and the groove.
Description
Technical Field
The utility model relates to the technical field of commutators, in particular to a high-stability air compressor motor commutator.
Background
The air compressor is an air compressor, and the air compressor is a main body of an electromechanical bleed air source device which is a core device of a pneumatic system and provides air source power, is a device for converting mechanical energy of a prime mover (usually a motor) into gas pressure energy, and is an air pressure generating device for compressing air. The air compressor is widely applied in the mechanical field and various production, decoration and manufacturing fields, and is a source power for driving a pneumatic tool.
The motor is an important component of the air compressor, the performance of a commutator in the motor has a great influence on the long-time reliable operation of the motor, the connection tightness between a commutator bar and a mica sheet of the existing commutator is poor, the phenomenon of sheet jumping caused by mutual separation of the commutator bar and the mica sheet is easy to generate, the normal operation of the motor is not facilitated, and the operation of the air compressor is further influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the high-stability air compressor motor commutator which is firm in structure and capable of preventing the jump sheet.
The utility model is realized by adopting the following technical scheme: the high-stability motor commutator of the air compressor comprises commutator segments and mica sheets which are annularly arranged on the outer surface of a matrix, wherein the commutator segments and the mica sheets are arranged at intervals, at least two grooves are formed in the lower parts of the commutator segments, and a convex block is formed between every two adjacent grooves;
the bottom of the commutator segment is provided with a cavity, the outer wall of the bottom of the commutator segment is provided with a plurality of through holes communicated with the cavity, sealing plates are arranged in the through holes, the sealing plates completely seal the through holes, and the through holes are in a negative pressure state;
the base fills the cavity and the groove.
The side wall of the bottom of the commutator bar is symmetrically provided with a pair of clamping grooves, clamping rings are arranged in the clamping grooves, and the clamping rings are wound on the periphery of the base body and penetrate through the commutator bar and the mica sheet.
A plurality of centrums are arranged in the cavity, the outer diameters of the centrums are gradually reduced towards the direction of the through hole, and a plurality of convex strips are arranged on the outer walls of the centrums.
The axial cross section of the lug is in a trapezoid shape with a small upper part and a large lower part, and the axial cross section of the groove is in a reversed trapezoid shape with a large upper part and a small lower part.
Compared with the prior art, the sealing plate is damaged by the fused substrate with higher temperature, the fused substrate is sucked into the cavity under the action of negative pressure in the cavity after the sealing plate is broken, the connection tightness between the substrate and the commutator segment is improved, meanwhile, the fused substrate can flow into the groove, the commutator segment is clamped on the substrate through the inner wall of the groove, the substrate and the groove can be extruded under the action of the bump, the connection strength between the substrate and the commutator segment is further improved, the structure is firm, the commutator segment and mica sheet are reliably fixed on the outer surface of the substrate, the phenomenon of segment jumping is avoided, and the commutator is ensured to be in a reliable working state.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a commutator segment;
in the figure: 1. a substrate; 2. a commutator segment; 21. a groove; 22. a bump; 23. a cavity; 24. closing the plate; 25. a card slot; 3. mica sheets; 4. a snap ring; 5. a vertebral body; 50. and (4) raised strips.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1-2, the high-stability air compressor motor commutator comprises commutator segments 2 and mica sheets 3 annularly arranged on the outer surface of a substrate 1, wherein the commutator segments 2 and the mica sheets 3 are arranged at intervals, at least two grooves 21 are arranged at the lower part of each commutator segment 2, and a bump 22 is formed between every two adjacent grooves 21;
the bottom of each commutator segment 2 is provided with a cavity 23, the outer wall of the bottom of each commutator segment 2 is provided with a plurality of through holes communicated with the cavities 23, sealing plates 24 are arranged in the through holes, the sealing plates 24 completely seal the through holes, and the through holes are in a negative pressure state;
the base body 1 fills the cavity 23 and the recess 21. In the process of pouring of the base body 1, the base body 1 with high melting temperature can damage the sealing plate 24, after the sealing plate 24 is broken, the melted base body 1 is sucked into the cavity 23 under the action of negative pressure in the cavity 23, the tightness of connection between the base body 1 and the commutator segment 2 is improved, meanwhile, the melted base body 1 can also flow into the groove 21, the commutator segment 2 is clamped on the base body 1 through the inner wall of the groove 21, and under the action of the bump 22, the extrusion effect on the base body 1 and the groove 21 can be achieved, the connection strength between the base body 1 and the commutator segment 2 is further improved, the structure is firm, the commutator segment 2 and the mica segment 3 are reliably fixed on the outer surface of the base body 1, the phenomenon of segment jumping is avoided, and the commutator is ensured to be in a reliable working state.
The bottom side wall of the commutator segment 2 is further symmetrically provided with a pair of clamping grooves 25, clamping rings 4 are arranged in the clamping grooves 25, and the clamping rings 4 are wound on the periphery of the base body 1 and penetrate through the commutator segment 2 and the mica sheet 3. Through the clamping and fixing effect of the clamping ring 4, the commutator segment 2 and the mica sheet 3 are radially locked, the firmness of the assembly of the commutator segment 2 and the mica sheet 3 on the substrate 1 is effectively improved, and the commutator is ensured to be in a reliable working state.
A plurality of vertebral bodies 5 are arranged in the cavity 23, the outer diameter of each vertebral body 5 gradually decreases towards the direction of perforation, and a plurality of convex strips 50 are arranged on the outer wall of each vertebral body 5. The reliable fit of the base body 1 and the inner wall of the cavity 23 is ensured through the matching of the cone 5 and the convex strip 50, the bonding strength of the base body 1 and the inner wall of the cavity 23 is improved, the connection tightness of the commutator segment 2 and the base body 1 is improved, and the commutator is ensured to be in a reliable working state.
The axial section of the projection 22 is a trapezoid with a small top and a big bottom, and the axial section of the groove 21 is an inverted trapezoid with a large top and a small bottom. The lug 22 is trapezoidal shape, recess 21 is the shape of falling the trapezoidal for base member 1 is injecting the back, can reliably centre gripping base member 1 through recess 21 and lug 22, further improves the assembly fastness between commutator segment 2 and the base member 1.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (4)
1. High stability air compressor machine motor commutator establishes commutator segment and mica sheet at the base member surface including the ring, and is a plurality of commutator segment and a plurality of the mica sheet interval sets up its characterized in that: the lower part of the commutator segment is provided with at least two grooves, and a convex block is formed between every two adjacent grooves;
the bottom of the commutator segment is provided with a cavity, the outer wall of the bottom of the commutator segment is provided with a plurality of through holes communicated with the cavity, sealing plates are arranged in the through holes, the sealing plates completely seal the through holes, and the through holes are in a negative pressure state;
the base fills the cavity and the groove.
2. The high stability air compressor motor commutator of claim 1, characterized in that: the side wall of the bottom of the commutator bar is symmetrically provided with a pair of clamping grooves, clamping rings are arranged in the clamping grooves, and the clamping rings are wound on the periphery of the base body and penetrate through the commutator bar and the mica sheet.
3. The high stability air compressor motor commutator of claim 1, characterized in that: the cavity is internally provided with a plurality of centrums, the outer diameters of the centrums are gradually reduced towards the direction of the perforation, and the outer walls of the centrums are provided with a plurality of convex strips.
4. The high stability air compressor motor commutator of claim 1, characterized in that: the axial cross section of the lug is in a trapezoid shape with a small upper part and a large lower part, and the axial cross section of the groove is in a reversed trapezoid shape with a large upper part and a small lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122282262.XU CN216529749U (en) | 2021-09-18 | 2021-09-18 | High-stability air compressor motor commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122282262.XU CN216529749U (en) | 2021-09-18 | 2021-09-18 | High-stability air compressor motor commutator |
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| Publication Number | Publication Date |
|---|---|
| CN216529749U true CN216529749U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122282262.XU Active CN216529749U (en) | 2021-09-18 | 2021-09-18 | High-stability air compressor motor commutator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665353A (en) * | 2022-05-25 | 2022-06-24 | 西安赛隆金属材料有限责任公司 | Rotating shaft power supply device, power supply method and application |
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2021
- 2021-09-18 CN CN202122282262.XU patent/CN216529749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665353A (en) * | 2022-05-25 | 2022-06-24 | 西安赛隆金属材料有限责任公司 | Rotating shaft power supply device, power supply method and application |
| CN114665353B (en) * | 2022-05-25 | 2022-08-19 | 西安赛隆金属材料有限责任公司 | Rotating shaft power supply device, power supply method and application |
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