CN203119640U - Rotor three section shaft coupling structure - Google Patents
Rotor three section shaft coupling structure Download PDFInfo
- Publication number
- CN203119640U CN203119640U CN 201220651922 CN201220651922U CN203119640U CN 203119640 U CN203119640 U CN 203119640U CN 201220651922 CN201220651922 CN 201220651922 CN 201220651922 U CN201220651922 U CN 201220651922U CN 203119640 U CN203119640 U CN 203119640U
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- China
- Prior art keywords
- transmission shaft
- shaft
- nut
- power transmission
- quill
- 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.)
- Expired - Fee Related
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Abstract
A rotor three section shaft coupling structure comprises a transmission shaft, a quill shaft and a non-transmission shaft. The transmission shaft, the quill shaft and the non-transmission shaft are integrally forged. The quill shaft is a hollow shaft. The transmission shaft and the quill shaft are connected through at least two groups of connecting pieces. Each group of the connecting pieces comprises a double end stud and a nut which are located on two sides, and a bolt pin, a pin bush and the nut which are located in the middle. The transmission shaft and the quill shaft form front edge clearance fit. The non-transmission shaft and the quill shaft are connected through at least two groups of the connecting pieces. Each group of the connecting pieces comprises the two double end studs and the nut. The bolt pin, the pin bush and the nut are arranged between the two double end studs of the one group of the connecting pieces. The non-transmission shaft and the quill shaft form the front edge clearance fit. The transmission shaft, the quill shaft and the non-transmission shaft adopt a three-section shaft coupling structure so that the structure of a motor rotor is compact and reasonable. Rotational inertia of the motor rotor can be greatly reduced so that an impulse load during positive and negative rotation can be effectively reduced and a system is stable.
Description
Technical field
The utility model belongs to the AC/AC (alternating current) variable-frequency steel-rolling technical field of motors, particularly a kind of three sections axle connecting structures of rotor for the AC/AC (alternating current) variable-frequency steel-rolling motor.
Background technology
As everyone knows, the AC/AC (alternating current) variable-frequency steel-rolling motor is that environment for use is required relatively harsher motor product.This kind motor not only frequency changes back and forth, but also needs rotating, and shock loading is big, and rotor is as its critical component, and motor requires very high to the rotor bulk strength.At present, the rotor of AC/AC (alternating current) variable-frequency steel-rolling motor commonly used is based on that synchronous motor develops, though through for many years practice operation, but still have following defective: 1) rotor moment of inertia is big, shock loading is big when causing motor positive and inverse, influences total system stability; 2) rotor weight is heavy, the lifting difficulty; 3) rotor structure complexity, installation difficulty is big.Above-mentioned defective has brought a lot of inconvenience for installation and the use of rotor.In practice, though the rotor structure of AC/AC (alternating current) variable-frequency steel-rolling motor is updated, effect is still not ideal.
The utility model content
The utility model provide a kind of simple in structure, moment of inertia is little, three sections axle connecting structures of rotor that can transmit big torque and be convenient to install.
For achieving the above object, the technical solution of the utility model is: three sections axle connecting structures of a kind of rotor, comprise power transmission shaft, quill shaft and non-power transmission shaft, and described power transmission shaft, quill shaft and non-power transmission shaft solid forging respectively form, and quill shaft is hollow shaft; Power transmission shaft links to each other by at least two group connectors with quill shaft, and every group of connector comprises the studs of both sides and bolt pin and guide and the nut of nut and centre, and power transmission shaft and quill shaft adopt the seam matched in clearance; Non-power transmission shaft links to each other by at least two group connectors with quill shaft, every group of connector comprises two studs and nut, wherein be provided with bolt pin and guide and nut between two of one group of connector studs, non-power transmission shaft and quill shaft adopt the seam matched in clearance.
Described power transmission shaft links to each other by eight groups of connectors with quill shaft, and the nuts and bolt pin of studs and the nut outside of guide all are provided with braking ring by latch, are connected with brake(-holder) block on the braking ring of every group of connector; Non-power transmission shaft links to each other by eight groups of connectors with quill shaft, wherein be provided with bolt pin and guide and nut between two of four groups of connectors studs, the nuts and bolt pin of studs and the nut outside of guide all are provided with braking ring by latch, are connected with brake(-holder) block on the braking ring of every group of connector.
Bolt pin in the connector of described non-power transmission shaft and quill shaft and guide and nut are spaced apart.
Offer ventilation hole and magnetic pole installing hole on the circumferencial direction of described quill shaft.
Compared with prior art, the utility model has the advantages that:
1, the utility model comprises power transmission shaft, quill shaft and non-power transmission shaft, and described power transmission shaft, quill shaft and non-power transmission shaft solid forging respectively form, and quill shaft is hollow shaft; Power transmission shaft links to each other by at least two group connectors with quill shaft, and every group of connector comprises the studs of both sides and bolt pin and guide and the nut of nut and centre, and power transmission shaft and quill shaft adopt the seam matched in clearance; Non-power transmission shaft links to each other by at least two group connectors with quill shaft, every group of connector comprises two studs and nut, wherein be provided with bolt pin and guide and nut between two of one group of connector studs, non-power transmission shaft and quill shaft adopt the seam matched in clearance; Every section of power transmission shaft, quill shaft and non-power transmission shaft in light weight is beneficial to lifting, is convenient to install, safeguard; Adopt bolt pin to be connected with the mode that studs is used between power transmission shaft and quill shaft, quill shaft and the non-power transmission shaft, simple in structure, connect reliably, bolt pin is mainly used to carry-over moment, studs mainly plays the connection effect, can satisfy the requirement of big transmission of torque; Adopt three sections Axile connection structures, make the structure of rotor compacter, reasonable, can reduce the moment of inertia of rotor greatly, thereby the shock loading when effectively reducing rotating makes system more stable.
2, the nut outside of the nuts and bolt pin of studs and guide all is provided with braking ring by latch, be connected with brake(-holder) block on the braking ring of every group of connector, anti-loosening reliable in structure, rationally, can realize connecting fastening reliably, loosening, can not damage nut, not influence dismounting.
3, quill shaft adopts hollow-core construction, and offers ventilation hole and magnetic pole installing hole on the circumferencial direction, and in light weight with respect to the T-slot structure, moment of inertia is little.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that A among Fig. 1 is to view;
Fig. 3 is that B among Fig. 1 is to view;
Fig. 4 is bolt pin and guide connection diagram among Fig. 1;
Fig. 5 is studs connection diagram among Fig. 1.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and three sections axle connecting structures of rotor shown in Figure 5, it comprises power transmission shaft 1, quill shaft 2 and non-power transmission shaft 3, power transmission shaft 1, quill shaft 2 and non-power transmission shaft 3 solid forging respectively form, and quill shaft 2 is hollow shaft, offers ventilation hole 22 and magnetic pole installing hole 21 at the circumferencial direction of quill shaft 2.Power transmission shaft 1 and quill shaft 2 employing seam matched in clearance, and continuous by eight groups of connectors, and every group of connector comprises the studs 5 of both sides and bolt pin and the guide 4 and nut 6 of nut 61 and centre.Non-power transmission shaft 3 adopts the seam matched in clearance with quill shaft 2, and it is continuous by eight groups of connectors, every group of connector comprises two studs 5 and nut 61, because the torque of non-transmision end is less, only be provided with bolt pin and guide 4 and nut 6 therein between two studs 5 of four groups of connectors, and non-power transmission shaft 3 is spaced apart in eight groups of connectors with nut 6 with bolt pin and guide 4 on the quill shaft 2.All be provided with braking ring 7 by latch 8 at the nut 61 of studs 5 and nut 6 outsides of bolt pin and guide 4, be connected with brake(-holder) block 9 on the braking ring 7 of every group of connector, can realize connecting fastening reliably, loosening, can not damage nut, do not influence dismounting.Bolt pin and guide 4 are mainly used to carry-over moment, and bolt pin wherein and guide adopt cone match, can transmit big torque; And studs 5 mainly plays the connection effect.
In the present embodiment, nut 6 is special nut with nut 61, have pin-and-hole radially on its circumference, radially pin-and-hole is corresponding with the pin-and-hole on the braking ring 7 for this, braking ring 7 is fixed on nut 6 or the nut 61 by the latch 8 in the pin-and-hole, and nut 6 or nut 61 are weldingly connected with brake(-holder) block 9.Bolt pin and guide 4 are super bolt pin and guide, and studs 5 is the high strength studs.
The utility model is applicable to TDP8000-16 AC/AC (alternating current) variable-frequency synchronous motor.
Claims (4)
1. three sections axle connecting structures of a rotor comprise power transmission shaft, quill shaft and non-power transmission shaft, it is characterized in that described power transmission shaft, quill shaft and non-power transmission shaft solid forging respectively form, and quill shaft is hollow shaft; Power transmission shaft links to each other by at least two group connectors with quill shaft, and every group of connector comprises the studs of both sides and bolt pin and guide and the nut of nut and centre, and power transmission shaft and quill shaft adopt the seam matched in clearance; Non-power transmission shaft links to each other by at least two group connectors with quill shaft, every group of connector comprises two studs and nut, wherein be provided with bolt pin and guide and nut between two of one group of connector studs, non-power transmission shaft and quill shaft adopt the seam matched in clearance.
2. three sections axle connecting structures of rotor as claimed in claim 1, it is characterized in that, described power transmission shaft links to each other by eight groups of connectors with quill shaft, the nuts and bolt pin of studs and the nut outside of guide all are provided with braking ring by latch, are connected with brake(-holder) block on the braking ring of every group of connector; Non-power transmission shaft links to each other by eight groups of connectors with quill shaft, wherein be provided with bolt pin and guide and nut between two of four groups of connectors studs, the nuts and bolt pin of studs and the nut outside of guide all are provided with braking ring by latch, are connected with brake(-holder) block on the braking ring of every group of connector.
3. three sections axle connecting structures of rotor as claimed in claim 2 is characterized in that, the bolt pin in the connector of described non-power transmission shaft and quill shaft and guide and nut are spaced apart.
4. as claim 1, three sections axle connecting structures of 2 or 3 described rotors, it is characterized in that, offer ventilation hole and magnetic pole installing hole on the circumferencial direction of described quill shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651922 CN203119640U (en) | 2012-12-03 | 2012-12-03 | Rotor three section shaft coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651922 CN203119640U (en) | 2012-12-03 | 2012-12-03 | Rotor three section shaft coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119640U true CN203119640U (en) | 2013-08-07 |
Family
ID=48899956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651922 Expired - Fee Related CN203119640U (en) | 2012-12-03 | 2012-12-03 | Rotor three section shaft coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119640U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527614A (en) * | 2013-10-25 | 2014-01-22 | 中电电机股份有限公司 | Connecting structure of three-section shaft used for large synchronous motor |
| CN104595345A (en) * | 2014-12-16 | 2015-05-06 | 中国船舶重工集团公司第七一二研究所 | Novel marine air-cooled propulsion motor |
| CN107855730A (en) * | 2017-09-21 | 2018-03-30 | 上海力信电气技术有限公司 | Multistage hollow shaft docking calculation |
-
2012
- 2012-12-03 CN CN 201220651922 patent/CN203119640U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527614A (en) * | 2013-10-25 | 2014-01-22 | 中电电机股份有限公司 | Connecting structure of three-section shaft used for large synchronous motor |
| CN104595345A (en) * | 2014-12-16 | 2015-05-06 | 中国船舶重工集团公司第七一二研究所 | Novel marine air-cooled propulsion motor |
| CN104595345B (en) * | 2014-12-16 | 2017-02-15 | 中国船舶重工集团公司第七一二研究所 | Novel marine air-cooled propulsion motor |
| CN107855730A (en) * | 2017-09-21 | 2018-03-30 | 上海力信电气技术有限公司 | Multistage hollow shaft docking calculation |
| CN107855730B (en) * | 2017-09-21 | 2019-10-22 | 上海力信电气技术有限公司 | Multistage hollow shaft interconnection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |