CN200990546Y - Electric machine axle coupling without welding broken axle - Google Patents
Electric machine axle coupling without welding broken axle Download PDFInfo
- Publication number
- CN200990546Y CN200990546Y CN 200620048992 CN200620048992U CN200990546Y CN 200990546 Y CN200990546 Y CN 200990546Y CN 200620048992 CN200620048992 CN 200620048992 CN 200620048992 U CN200620048992 U CN 200620048992U CN 200990546 Y CN200990546 Y CN 200990546Y
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- CN
- China
- Prior art keywords
- connects
- axis
- axle
- sectional area
- circular hole
- 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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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to a motor repairing technical field, in particular to a bearing cut connect component which is easy for producing and can enhance the intensity. The technical problem to be solved is that no weld repairing method is taken after the motor rotating shaft is broken, and the service life is promised after repairing. The technic proposal is to adopt a bearing cut connect component which is not to be welded with the motor. The utility model is characterized in that the bearing thick segment of the cut bearing is processed with a bearing connecting hole; the alloy steel connecting bearing of stronger intensity is embedded with hot sleeve, and the connecting bearing and the connecting bearing hole realize connection with the pass torque via a non-key interference and are mainly applied to the repair after the motor rotating shaft is cut.
Description
Technical field:
The utility model belongs to the motor repair technical field, relates in particular to a kind of off-axis easy to process, that can improve intensity and connects a part.
Background technology:
Because of overload or tired cause machine shaft fracture (mainly being the load side spindle nose), be a kind of comparatively common mechanical breakdown.Machine shaft generally all is to be processed behind heat treatment reinforcement by Fine Steel Casting iron, and at present, public service technique has two kinds usually: change off-axis or welding and connect axle.Preceding a kind of method process-cycle is long, and on the axle many annexes is arranged, and under a lot of situations, must destroy these annexes and rotating shaft could be taken out from rotor core; A kind of method in back has weakened the intensity of axle owing to there is remaining welding stress.
Summary of the invention:
The purpose of this utility model provides and a kind ofly need not weld, the axle construction that connects easy to process, and it improves the intensity that connects axle effectively, and has avoided extruding the inconvenience that off-axis brought.
The technical solution of the utility model: the off-axis that a kind of motor does not weld connects a part, be processed with one at the thick shaft part of the rotating shaft of off-axis and connect a circular hole, hot jacket is bumped into more that the structural alloy steel of high strength grade connects axle, connects axle and connects a circular hole by no key interference fit joint transmitting torque.
Connecing the axle bearing shelves, to go out the spindle nose profile to load side identical with rotating shaft, and connecing a connector is cylindricality, its diameter with connect a circular hole coupling, connector is a round-corner transition with connecing axis body.
Beneficial effect: the structural alloy steel of high strength grade connects axle because the utility model adopts more, has improved the intensity at off-axis place, so, avoided changing a trouble that causes and expensive; Also avoided welding to connect the stress that weakening and welding produced of axle to axle intensity.
Description of drawings:
For achieving the above object, embodiment of the present utility model is described further below in conjunction with the accompanying drawing example.
Fig. 1 is a motor load side shaft structural representation;
Fig. 2 is that the utility model connects a back structural representation;
Number in the figure explanation: 1, motor rotor core; 2, radiator shutter; 3, connect the position of axle; 4, bearing guard; 5, off-axis cross section; 6, load side goes out spindle nose; 7, the thick shaft part of rotating shaft; 8, connect axle; 9, fillet; 10, connector.
Embodiment:
The utility model is implemented as shown in Figure 1, have the rotating shaft generation off-axis on the motor rotor core 1 of radiator shutter 2 after, the position 3 that connects axle at the thick shaft part 7 of rotating shaft prescinds outboard shafts; Press shown in Figure 2 then in this position, process a deep hole and promptly connect a circular hole, make this shaft part become external member, 1., external member sectional area (former rotating shaft sectional area deducts the sectional area that connects a circular hole) is greater than the sectional area in the former rotating shaft off-axis of load side cross section 5 diameter of perforate should meet two conditions:, guarantee that external member shaft part intensity will be far longer than off-axis place primitive axis intensity, avoids connecing a back external member place and can not rupture; 2., the sectional area that connects a circular hole will reach more than 70% of sectional area in off-axis cross section 5, because the axle that connects that is bumped into is selected the more structural alloy steel of high strength grade for use, and through heat treatment reinforcement, though connect a sectional area at place less than off-axis place sectional area, actual working strength is greater than primitive axis intensity.
The length that connects a circular hole is greater than the position 3 that Fig. 1 connects axle and goes out 1/3 of spindle nose 6 end length overalls to load side.Connecing axle 8 bearing guards 4, to go out spindle nose 6 profiles to load side identical with rotating shaft, connect a connector 10 and be cylindricality, its diameter with connect a circular hole and mate, connector and to connect axis body be fillet 9 transition.
1., the assurance magnitude of interference can transmit the overload torque more than 3 times connect axle place's external member and adopt no key interference fit joint to come carry-over moment with internal member, the size of value of interference fit satisfies two conditions:; 2., guarantee the regime of elastic deformation of the magnitude of interference at material.
Shown in Figure 2, connector with connect the stress that 9 transition of axis body fillet can be eliminated this place, improve intensity.
Mode with heating rises greatly by the external member endoporus, packs into to connect axle 8.Connect axle except being bumped into partly, all the other shaft parts are all put allowance, go up after cooling to process after lathe is proofreaied and correct and put in place.
The utility model has adopted the shaft material that connects of high intensity levels more, considers the intensity that meets axle place and former off-axis place, so connect intensity reality behind the axle greater than the intensity of primitive axis; Because the utility model is to adopt no key interference fit joint to come transmitting torque, so simple in structure, easy to process.
Claims (5)
1, the off-axis that do not weld of a kind of motor connects a part, it is characterized in that: be processed with one at the thick shaft part of the rotating shaft of off-axis and connect a circular hole, hot jacket is bumped into more that the structural alloy steel of high strength grade connects axle, connects axle and connects a circular hole by no key interference fit joint transmitting torque.
2, the off-axis that do not weld of a kind of motor according to claim 1 connects a part, it is characterized in that: connecing the axle bearing shelves, to go out the spindle nose profile to load side identical with rotating shaft, connecing a connector is cylindricality, its diameter with connect spool circular hole coupling, connector is a round-corner transition with connecing axis body.
3, the off-axis that do not weld of a kind of motor according to claim 1 connects a part, and it is characterized in that: the external member sectional area is that former rotating shaft sectional area deducts the sectional area that the sectional area that connects a circular hole is greater than the former rotating shaft off-axis of load side cross section.
4, the off-axis that do not weld of a kind of motor according to claim 1 connects a part, and it is characterized in that: the sectional area that connects a circular hole will reach the sectional area in off-axis cross section more than 70%.
5, the off-axis that do not weld of a kind of motor according to claim 1 connects a part, it is characterized in that: the length that connects a circular hole be greater than connect axle the position to 1/3 of load side shaft cephalic par length overall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048992 CN200990546Y (en) | 2006-12-14 | 2006-12-14 | Electric machine axle coupling without welding broken axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048992 CN200990546Y (en) | 2006-12-14 | 2006-12-14 | Electric machine axle coupling without welding broken axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200990546Y true CN200990546Y (en) | 2007-12-12 |
Family
ID=38941580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048992 Expired - Fee Related CN200990546Y (en) | 2006-12-14 | 2006-12-14 | Electric machine axle coupling without welding broken axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200990546Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385141A (en) * | 2016-11-28 | 2017-02-08 | 宁夏西北骏马电机制造股份有限公司 | Motor broken shaft reconnection technology |
-
2006
- 2006-12-14 CN CN 200620048992 patent/CN200990546Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385141A (en) * | 2016-11-28 | 2017-02-08 | 宁夏西北骏马电机制造股份有限公司 | Motor broken shaft reconnection technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20100114 |