CN113141073A - Rotor punching sheet of slurry generator - Google Patents
Rotor punching sheet of slurry generator Download PDFInfo
- Publication number
- CN113141073A CN113141073A CN202110397206.2A CN202110397206A CN113141073A CN 113141073 A CN113141073 A CN 113141073A CN 202110397206 A CN202110397206 A CN 202110397206A CN 113141073 A CN113141073 A CN 113141073A
- Authority
- CN
- China
- Prior art keywords
- rotor punching
- wide
- groove
- narrow groove
- permanent magnet
- 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.)
- Pending
Links
- 238000004080 punching Methods 0.000 title claims abstract description 33
- 239000002002 slurry Substances 0.000 title description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
Abstract
The patent discloses a mud motor rotor punching, including the rotor punching body, evenly be provided with a plurality of wide grooves and the slot that are used for placing the permanent magnet on the rotor punching body, be provided with the tension hole between wide groove and the slot, evenly be provided with the wide groove on the outer circumference of rotor punching body, all be equipped with the slot in the inboard left and right sides of every wide groove, be provided with the bridge cut-off between wide groove and slot, the cross-section of wide groove is the quadrangle, and the limit that is close to the periphery is curved, and other three limits are straight, and the limit that is equipped with the bridge cut-off is the disconnection. The rotor punching sheet structure can effectively reduce the magnetic leakage of the motor, improve the utilization rate of the permanent magnet, reduce the using amount of the permanent magnet and reduce the material cost of the motor.
Description
Technical Field
The invention belongs to the field of electric parts, and relates to a rotor punching sheet of a slurry generator.
Background
The mud generator mainly works at the bottom of a well, and the bottom of the well is in a high-temperature, high-pressure and high-vibration environment, so that the mud generator is required to have the capability of being used in the high-temperature, high-pressure and high-vibration environment. The power generation part consists of a generator stator and a generator rotor. The coil is fixed on the stator, the rotor is provided with magnetic steel, and the coil is cut by the rotation of the magnetic steel to realize power generation.
Chinese patent CN201410223876.2 discloses a 4-pole automotive permanent magnet synchronous generator rotor punching, but this 4-pole automotive permanent magnet synchronous generator rotor punching is in the in-service use, because one side that the wide groove is close to the narrow groove has contained two non-collinear faces, and then leads to the wide groove to need a face of many processing, and two non-collinear face intersections are because the structure is very thin, the condition of processing deformation can often appear, have the defect when leading to the later stage to use.
Disclosure of Invention
Object of the Invention
The purpose of this patent is to provide one kind and can reduce the magnetic leakage, can guarantee mechanical strength again, the mud generator rotor punching that the reliability is high.
Technical scheme
The utility model provides a mud generator rotor punching, includes the rotor punching body, evenly is provided with a plurality of wide grooves and the narrow groove that are used for placing the permanent magnet on the rotor punching body, is provided with the tensioning hole between wide groove and the narrow groove, evenly is provided with the wide groove on the outer circumference of rotor punching body, all is equipped with the narrow groove in the inboard left and right sides of every wide groove, is provided with the bridge cut-off between wide groove and narrow groove, the cross-section of wide groove is the quadrangle, and the limit that is close to the periphery is curved, and other three limits are straight, and the limit that is equipped with the bridge cut-off is the disconnection.
The bridge cut-off sets up between wide groove and adjacent arbitrary one side and the narrow groove that is the homonymy rather than. The section of the narrow groove is trapezoidal, and the upper bottom of the trapezoid of the narrow groove is close to the outer arc of the rotor punching sheet body. The number of the wide slots and the narrow slots corresponds to the number of poles of the motor.
Advantages and effects
The mud generator rotor punching sheet has the following advantages and beneficial effects:
(1) the broken bridge structure is adopted, so that the magnetic leakage of the motor rotor is effectively reduced;
(2) the mechanical strength is effectively ensured, and the reliability is high;
(3) the utilization rate of the permanent magnet is improved, the using amount of the permanent magnet is reduced, and the material cost of the motor is reduced.
Drawings
FIG. 1 is a schematic overall structure diagram of a rotor sheet of a mud generator.
Description of reference numerals:
in the figure: 1-wide groove, 2-bridge cut-off, 3-tensioning hole, 4-narrow groove and 5-rotor punching sheet body.
Detailed Description
The patent is further described with reference to the accompanying drawings in which:
as shown in figure 1, the rotor punching sheet of the mud generator is of a full-circle structure and comprises a rotor punching sheet body 5, a plurality of wide grooves 1 and narrow grooves 4 for placing permanent magnets are uniformly arranged on the rotor punching sheet body 5, tensioning holes 3 are arranged between the wide grooves 1 and the narrow grooves 4 and are used for axial tensioning of the punching sheet, the wide grooves 1 are uniformly arranged on the outer circumference of the rotor punching sheet body 5, the narrow grooves 4 are arranged on the left side and the right side of the inner side of each wide groove 1, and a bridge breaker 2 is arranged between the wide grooves 1 and the narrow grooves 4, so that magnetic leakage flux is effectively reduced, the cross section of each wide groove 1 is quadrilateral, the edge close to the outer circumference is arc-shaped, the other three edges are straight, and the edge provided with the bridge breaker 2 is broken. The bridge cut-off 2 sets up between wide groove 1 and arbitrary one side rather than adjacent and be the slot 4 of homonymy, all can set up the bridge cut-off between wide groove 1 and the slot 4 of arbitrary one side of the left and right sides rather than adjacent promptly, sets up all on the left side when the left side, sets up all on the right side when the right side. The section of the narrow groove 4 is trapezoidal, and the upper bottom of the trapezoid of the narrow groove 4 is close to the outer arc of the rotor punching sheet body 5. The number of wide slots 1 and narrow slots 4 corresponds to the number of poles of the motor.
The quantity in tensioning hole 3 is corresponding with the number of poles of motor to the diameter in tensioning hole can set up between 5 ~ 10mm, and the effect is best this moment, and the tensioning hole influences the taut intensity of rotor punching for a short time, and the tensioning hole is too big, can influence the magnetic leakage of motor.
The width of the bridge 2 is a, the width of the end part of the narrow groove 4 is b, and the width a of the bridge 2 and the width b of the narrow groove 4 are satisfied
The magnetic shield is high in mechanical strength and good in magnetic isolation effect.
When the slurry generator rotor punching sheet is used:
at present current rotor punching does not have the bridge cut-off, is continuous, and the magnetic leakage phenomenon is serious, and this patent has set up bridge cut-off 2 between wide groove 1 and narrow groove 4, has effectively solved this problem.
When the rotor punching sheet is used, the permanent magnets arranged in the wide groove 1 and the narrow groove 4 emit total magnetic flux outwards, the total magnetic flux is the sum of main magnetic flux and leakage magnetic flux, the main magnetic flux is beneficial magnetic flux, the leakage magnetic flux is harmful magnetic flux, the more the leakage magnetic flux is, the less the main magnetic flux is, the more the motor is, after the bridge cut-off 2 is arranged between the wide groove 1 and the narrow groove 4, the leakage magnetic flux is effectively prevented, the leakage magnetic flux is reduced, and the beneficial magnetic flux of the motor is greatly increased. Therefore, the using amount of the permanent magnet can be reduced, and the production cost of the motor is effectively saved.
Claims (4)
1. The utility model provides a mud generator rotor punching, including rotor punching body (5), evenly be provided with a plurality of wide flute (1) and narrow groove (4) that are used for placing the permanent magnet on rotor punching body (5), be provided with between wide flute (1) and narrow groove (4) and pull up hole (3), evenly be provided with wide flute (1) on rotor punching body (5) outer circumference, all be equipped with narrow groove (4) in the inboard left and right sides of every wide flute (1), be provided with broken bridge (2) between wide flute (1) and narrow groove (4), its characterized in that: the cross section of the wide groove (1) is quadrilateral, the edge close to the periphery is arc-shaped, the other three edges are straight, and the edge provided with the broken bridge (2) is broken.
2. The mud permanent magnet generator rotor blade as set forth in claim 1, wherein: the bridge cut-off (2) is arranged between the wide groove (1) and the narrow groove (4) which is adjacent to the wide groove and is at any side and at the same side.
3. The mud permanent magnet generator rotor blade as set forth in claim 1, wherein: the section of the narrow groove (4) is trapezoidal, and the trapezoidal upper bottom of the narrow groove (4) is close to the outer arc of the rotor punching sheet body (5).
4. The mud generator rotor blade as set forth in claim 1, 2 or 3, wherein: the number of the wide slots (1) and the narrow slots (4) corresponds to the number of poles of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110397206.2A CN113141073A (en) | 2021-04-13 | 2021-04-13 | Rotor punching sheet of slurry generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110397206.2A CN113141073A (en) | 2021-04-13 | 2021-04-13 | Rotor punching sheet of slurry generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113141073A true CN113141073A (en) | 2021-07-20 |
Family
ID=76812321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110397206.2A Pending CN113141073A (en) | 2021-04-13 | 2021-04-13 | Rotor punching sheet of slurry generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113141073A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856994A (en) * | 2011-06-30 | 2013-01-02 | 德昌电机(深圳)有限公司 | Permanent magnetic motor rotor |
| CN103956844A (en) * | 2014-05-26 | 2014-07-30 | 沈阳工业大学 | Permanent magnet synchronous generator rotor sheet for 4-pole cart |
| CN103973012A (en) * | 2014-05-26 | 2014-08-06 | 沈阳工业大学 | Rotor sheet for automotive permanent-magnet synchronous generator |
| CN103973011A (en) * | 2014-05-26 | 2014-08-06 | 沈阳工业大学 | Rotor punching sheet of four-pole automotive permanent magnet synchronous generator |
| CN203896071U (en) * | 2014-05-26 | 2014-10-22 | 沈阳工业大学 | Permanent magnetic synchronous generator rotor sheet for vehicle |
| CN105871096A (en) * | 2016-05-06 | 2016-08-17 | 浙江希尔富电气有限公司 | Rotor core of brushless motor |
| CN106100180A (en) * | 2016-07-07 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Built-in tangential formula rotor core, built-in tangential formula rotor and motor |
| CN206575252U (en) * | 2017-03-29 | 2017-10-20 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless electric machine of brushless electric machine |
-
2021
- 2021-04-13 CN CN202110397206.2A patent/CN113141073A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856994A (en) * | 2011-06-30 | 2013-01-02 | 德昌电机(深圳)有限公司 | Permanent magnetic motor rotor |
| CN103956844A (en) * | 2014-05-26 | 2014-07-30 | 沈阳工业大学 | Permanent magnet synchronous generator rotor sheet for 4-pole cart |
| CN103973012A (en) * | 2014-05-26 | 2014-08-06 | 沈阳工业大学 | Rotor sheet for automotive permanent-magnet synchronous generator |
| CN103973011A (en) * | 2014-05-26 | 2014-08-06 | 沈阳工业大学 | Rotor punching sheet of four-pole automotive permanent magnet synchronous generator |
| CN203896071U (en) * | 2014-05-26 | 2014-10-22 | 沈阳工业大学 | Permanent magnetic synchronous generator rotor sheet for vehicle |
| CN105871096A (en) * | 2016-05-06 | 2016-08-17 | 浙江希尔富电气有限公司 | Rotor core of brushless motor |
| CN106100180A (en) * | 2016-07-07 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Built-in tangential formula rotor core, built-in tangential formula rotor and motor |
| CN206575252U (en) * | 2017-03-29 | 2017-10-20 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless electric machine of brushless electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |
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| RJ01 | Rejection of invention patent application after publication |