CN202353343U - Motor rotor provided with slot expansion structure - Google Patents
Motor rotor provided with slot expansion structure Download PDFInfo
- Publication number
- CN202353343U CN202353343U CN2011203998774U CN201120399877U CN202353343U CN 202353343 U CN202353343 U CN 202353343U CN 2011203998774 U CN2011203998774 U CN 2011203998774U CN 201120399877 U CN201120399877 U CN 201120399877U CN 202353343 U CN202353343 U CN 202353343U
- Authority
- CN
- China
- Prior art keywords
- rotor
- wire casing
- iron core
- slot
- conducting bar
- 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 - Lifetime
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Abstract
The utility model relates to a motor rotor provided with a slot expansion structure, and the motor rotor comprises an iron core, a conducting bar, a clamping ring, an end ring and a lantern ring, wherein the iron core is provided with a slot along the axial direction; the conducting bar is arranged in the slot; the clamping ring, the end ring and the lantern ring are successively arranged on two ends of the iron core; the motor rotor also comprises a taper key; and the taper key is arranged in a gap between the bottom of the slot and the conducting bar. Compared with the prior art, the motor rotor has the following advantages: the taper-key conducting bar expansion structure is adopted to eliminate the gap along the height direction of the iron core slot, so that the expansion capability of the conducting bar in the slot can be improved, the accident that the rotor conducting bar is broken because of the centrifugal force action in the rotor rotating process can be effectively prevented, and the safety of the conducting bar in the motor operation process is improved.
Description
Technical field
The utility model relates to a kind of rotor, especially relates to a kind of rotor that is provided with wire casing swelling structure.
Background technology
The rotor bar of known operating cage type asynchronous motor is to adopt to draw moulding, so the appearance of negative tolerance, fixedly is to adopt in the sliver insertion groove in core slots, then pushes swelling with sections.The shortcoming of this swelling structure is with after the sections extruding swelling, 0.2 to 1.0 mm clearance occurs along the core slots short transverse.Calculating shows that the fatigue stress that when motor emerged in operation 0.2 mm clearance, is produced just is enough to cause the rotor bar fracture accident.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of rotor that is provided with wire casing swelling structure to be provided; This rotor adopts the sliver swelling structure of taper key formula; Strengthen the swelling ability of sliver in groove, improve the fail safe of motor operation.
The purpose of the utility model can realize through following technical scheme:
A kind of rotor that is provided with wire casing swelling structure; Comprise iron core, sliver, trim ring, end ring and the collar; Offer wire casing on the described iron core vertically, described sliver is located in the wire casing, and described trim ring, end ring and the collar are located at the two ends of iron core successively; This rotor also comprises taper key, and this taper key is located at the gap of wire casing bottom and sliver.
The gradient ratio of described taper key is 1: 200.
Be provided with two taper keies in each wire casing, the mode staggered with concentric reducer is provided with.
Described wire casing is provided with 20～60.
The two ends of described taper key and end ring welding.
The described collar is connected through screw with end ring.
Compared with prior art; The utility model adopts the sliver swelling structure of taper key formula; This structure can be eliminated the gap that occurs along the core slots short transverse, so just can improve the swelling ability of sliver in groove, effectively prevents in the rotor rotation process; The rotor bar fracture accident that centrifugal action possibly cause takes place, and has improved sliver in the operating fail safe of motor.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model;
Fig. 2 is the left TV structure sketch map of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
Like Fig. 1, shown in 2, a kind of rotor that is provided with wire casing swelling structure comprises iron core 3, taper key 2, sliver 1, trim ring 4, end ring 5 and the collar 6.Offer 39 wire casings on the iron core 3 vertically; Sliver 1 is located in the wire casing; Because sliver 1 general the employing draws moulding, sliver 1 can leave a fixed gap with the bottom of wire casing, can cause sliver 1 fracture in the running; Therefore these gap two gradient ratios of insertion are 1: 200 taper key 2, and the mode staggered with concentric reducer is provided with.Trim ring 4, end ring 5 and the collar 6 are successively set on the two ends of iron core 3, and weld with being located at the most inboard trim ring 4 at the two ends of taper key 2, connects through screw between the end ring 5 and the collar 6.
The sliver swelling structure of this taper key formula that the utility model adopts can be eliminated the gap that occurs along the core slots short transverse; So just can improve the swelling ability of sliver in groove; Effectively prevent in the rotor rotation process; The rotor bar fracture accident that centrifugal action possibly cause takes place, and has improved sliver in the operating fail safe of motor.
Claims (6)
1. rotor that is provided with wire casing swelling structure; Comprise iron core, sliver, trim ring, end ring and the collar, evenly offer a plurality of wire casings on the described iron core vertically, described sliver is located in the wire casing; Described trim ring, end ring and the collar are located at the two ends of iron core successively; It is characterized in that this rotor also comprises taper key, this taper key is located in the space of wire casing bottom and sliver formation.
2. a kind of rotor that is provided with wire casing swelling structure according to claim 1 is characterized in that, the gradient ratio of described taper key is 1: 200.
3. a kind of rotor that is provided with wire casing swelling structure according to claim 2 is characterized in that, is provided with two taper keies in each wire casing, and the mode staggered with concentric reducer is provided with.
4. a kind of rotor that is provided with wire casing swelling structure according to claim 1 is characterized in that described wire casing is provided with 20～60.
5. according to each described a kind of rotor that is provided with wire casing swelling structure in the claim 1 to 3, it is characterized in that the two ends of described taper key and end ring welding.
6. a kind of rotor that is provided with wire casing swelling structure according to claim 1 is characterized in that the described collar is connected through screw with end ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203998774U CN202353343U (en) | 2011-10-19 | 2011-10-19 | Motor rotor provided with slot expansion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203998774U CN202353343U (en) | 2011-10-19 | 2011-10-19 | Motor rotor provided with slot expansion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353343U true CN202353343U (en) | 2012-07-25 |
Family
ID=46542307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203998774U Expired - Lifetime CN202353343U (en) | 2011-10-19 | 2011-10-19 | Motor rotor provided with slot expansion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553131A (en) * | 2015-12-23 | 2016-05-04 | 湘潭电机股份有限公司 | Taper groove iron core of segmental punching motor and fabrication method of taper slot iron core |
| CN110492633A (en) * | 2019-08-24 | 2019-11-22 | 中船重工电机科技股份有限公司 | The high speed interconnected cage motor rotor structure and its assembly method of centrifugal force resistant |
-
2011
- 2011-10-19 CN CN2011203998774U patent/CN202353343U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553131A (en) * | 2015-12-23 | 2016-05-04 | 湘潭电机股份有限公司 | Taper groove iron core of segmental punching motor and fabrication method of taper slot iron core |
| CN110492633A (en) * | 2019-08-24 | 2019-11-22 | 中船重工电机科技股份有限公司 | The high speed interconnected cage motor rotor structure and its assembly method of centrifugal force resistant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI SHANGDIAN MOTOR CO., LTD. Free format text: FORMER NAME: SHANGHAI SHANGDIAN ELECTRICAL MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201807 Shanghai city Jiading District Hing Road 1200 Patentee after: Shanghai Shangdian Elec. Machinery Corp. Address before: 200240 Jiangchuan Road, Shanghai, No. 555, No. Patentee before: Shanghai Shangdian Electric Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |