CN220570402U - Sealing structure of outgoing line of brush direct-current speed measuring generator - Google Patents
Sealing structure of outgoing line of brush direct-current speed measuring generator Download PDFInfo
- Publication number
- CN220570402U CN220570402U CN202322308968.8U CN202322308968U CN220570402U CN 220570402 U CN220570402 U CN 220570402U CN 202322308968 U CN202322308968 U CN 202322308968U CN 220570402 U CN220570402 U CN 220570402U
- Authority
- CN
- China
- Prior art keywords
- bushing
- outgoing line
- cavity
- brush direct
- sealing structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 5
- 239000000463 material Substances 0.000 claims 2
- 238000004804 winding Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical group [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 239000005751 Copper oxide Substances 0.000 description 3
- 229910000431 copper oxide Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model belongs to the technical field of sealing structures, and relates to a sealing structure of a brush direct-current tachogenerator outgoing line. Comprises a cavity (1), a bushing (2) and an outgoing line (3); the bushing (2) is pressed into two sides of the cavity (1) and is in press fit with the cavity (1), the outgoing line (3) is in contact fit with the bushing hollow hole, and sealing glue is arranged at the assembly gap between the bushing (2) and the cavity (1) and the fit gap between the outgoing line (3) and the bushing (2). The sealing of the outgoing line of the brush direct-current tachogenerator avoids surrounding air from entering the cavity through the gap, thereby affecting the oxidation degree of the surface of the commutator and realizing the stabilization of the direct-current resistance measurement value of the brush direct-current tachogenerator winding.
Description
Technical Field
The utility model belongs to the technical field of sealing structures, and relates to a sealing structure of a brush direct-current tachogenerator outgoing line.
Background
Brush direct current motors typically have no direct current resistance requirements. A brush direct current tachogenerator of the existing matching system needs to measure the winding direct current resistance. The brush direct current tachogenerator is affected in various aspects when measuring windings, wherein the thickness degree of an oxide layer on the surface of a commutator directly affects the measurement value of direct current resistance of the windings, the oxide layer of the commutator is copper oxide, the copper oxide is a semiconductor, the thicker the copper oxide is, the larger the measured resistance value is, the thinner the oxide layer is, the real direct current resistance value of the windings can be fed back, and the thicker the oxide layer of the commutator is, which is high-temperature and humid in the external environment. Therefore, in order to avoid the influence of the external environment on the direct current resistance of the winding, a special sealing structure is needed.
Disclosure of Invention
The purpose of the utility model is that: the sealing structure of the outgoing line of the brush direct-current tachogenerator is designed, and the sealing structure of the outgoing line of the brush direct-current tachogenerator is realized.
The technical scheme of the utility model is as follows: the sealing structure of the outgoing line of the brush direct-current tachogenerator is characterized by comprising a cavity body 1, a bushing 2 and an outgoing line 3; the bushing 2 is pressed into two sides of the cavity 1 and is in press fit with the cavity 1, the outgoing line 3 is in contact fit with the bushing hollow hole, and the assembly gap between the bushing 2 and the cavity 1 and the fit gap between the outgoing line 3 and the bushing 2 are sealed by sealant.
The sealant is silicone gasket-free sealant 586-Q/HT3.
The bushing 2 is a hollow cylinder sleeve, and the section of the bushing is I-shaped.
The diameter of the inner hole of the bushing 2 is phi 3.9 0 +0.1 。
The bushing 2 is made of brass bars, and the cavity 1 is made of aluminum bars.
The section area of the outgoing line 3 is 0.35mm 2 。
The utility model has the advantages that: the sealing of the outgoing line of the brush direct-current tachogenerator avoids surrounding air from entering the cavity through the gap, thereby affecting the oxidation degree of the surface of the commutator and realizing the stabilization of the direct-current resistance measurement value of the brush direct-current tachogenerator winding.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
wherein: 1-cavity, 2-bush, 3-lead-out wire.
The specific embodiment is as follows:
the present utility model will be described in further detail below.
A sealing structure of a brush direct current tachogenerator outgoing line comprises a cavity 1, a bushing 2 and an outgoing line 3; the bushing 2 is pressed into two sides of the cavity 1 and is in press fit with the cavity 1, the outgoing line 3 is in contact fit with the bushing hollow hole, and the assembly gap between the bushing 2 and the cavity 1 and the fit gap between the outgoing line 3 and the bushing 2 are sealed by sealant.
The bushing 2 is a hollow cylindrical sleeve, the section of the bushing is I-shaped, the bushing is pressed into two sides of the cavity 1, and finally the outgoing line 3 penetrates out of a bushing hollow hole, the diameter of an inner hole of the bushing 2 is phi 3.9+0.1, and the bushing 2 is made of brass rods; the cavity 1 is made of aluminum bars. The section area of the outgoing line 3 is 0.35mm 2 。
In order to prevent the direct current resistance of the brush direct current tachogenerator from being influenced by external environment, a special tool is used for coating silicone gasket-free sealant 586-Q/HT3 at the gap between the bushing and the outgoing line hole and at the gap between the outgoing line 3 and the hollow hole of the bushing 2, and after the coating is finished, the glue solution is pressed, so that the glue solution is ensured to be coated at the gap, and the phenomenon of protrusion of the glue solution is avoided, so that the sealing structure of the outgoing line of the brush direct current tachogenerator is realized.
Claims (6)
1. The sealing structure of the outgoing line of the brush direct-current tachogenerator is characterized by comprising a cavity (1), a bushing (2) and an outgoing line (3); the bushing (2) is pressed into two sides of the cavity (1) and is in press fit with the cavity (1), the outgoing line (3) is in contact fit with the bushing hollow hole, and sealing glue is arranged at the assembly gap between the bushing (2) and the cavity (1) and the fit gap between the outgoing line (3) and the bushing (2).
2. The sealing structure of the brush direct current tachogenerator lead wire according to claim 1, wherein the sealing glue is silicone gasket-free sealing glue 586-Q/HT3.
3. The sealing structure of the outgoing line of the brush direct current tachogenerator according to claim 1, characterized in that the bushing (2) is a hollow cylindrical sleeve with an i-shaped section.
4. The sealing structure of the brush direct current tachogenerator lead wire according to claim 1, characterized in that the inner hole diameter of the bushing (2) is Φ3.9 0 +0.1 。
5. The sealing structure of the outgoing line of the brush direct current tachogenerator according to claim 1, characterized in that the material of the bushing (2) is brass bar, and the material of the cavity (1) is aluminum bar.
6. Sealing structure of the brush direct current tachogenerator lead wire according to claim 1, characterized in that the lead wire (3) has a cross-sectional area of 0.35mm 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308968.8U CN220570402U (en) | 2023-08-28 | 2023-08-28 | Sealing structure of outgoing line of brush direct-current speed measuring generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308968.8U CN220570402U (en) | 2023-08-28 | 2023-08-28 | Sealing structure of outgoing line of brush direct-current speed measuring generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220570402U true CN220570402U (en) | 2024-03-08 |
Family
ID=90102918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308968.8U Active CN220570402U (en) | 2023-08-28 | 2023-08-28 | Sealing structure of outgoing line of brush direct-current speed measuring generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220570402U (en) |
-
2023
- 2023-08-28 CN CN202322308968.8U patent/CN220570402U/en active Active
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