CN203146562U - Motor rotating shaft - Google Patents
Motor rotating shaft Download PDFInfo
- Publication number
- CN203146562U CN203146562U CN 201320167040 CN201320167040U CN203146562U CN 203146562 U CN203146562 U CN 203146562U CN 201320167040 CN201320167040 CN 201320167040 CN 201320167040 U CN201320167040 U CN 201320167040U CN 203146562 U CN203146562 U CN 203146562U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- shaft body
- motor
- machine shaft
- axle sleeve
- 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
Links
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to the technical field of motors, and in particular relates to a motor rotating shaft. The rotating shaft is quickly in contact with a rear end cover of a motor to be positioned through an additionally arranged shaft shoulder, so that a bearing arranged at the tail end of the rotating shaft can be well protected. The motor rotating shaft comprises a rotating shaft body, wherein the tail end of the rotating shaft body is provided with a shaft head; the other end of the rotating shaft body is a rotating head; the shaft shoulder is arranged on the end face of the tail end of the shaft head and is correspondingly matched with a positioning hole in the rear end cover of the motor; and four cambered key grooves for fixedly mounting the rotating shaft body to a rotor are formed in a position, which is close to the rotating head, of the rotating shaft body. The motor rotating shaft is rational in design and is quickly in contact with the rear end cover of the motor to be positioned through the additionally arranged shaft shoulder, so that the bearing arranged at the tail end of the rotating shaft can be well protected; and the cambered key grooves in the rotating shaft body can ensure that the rotating shaft body can be firmly arranged on the rotor.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of machine shaft.
Background technique
Motor refers to realize electric energy conversion or a kind of calutron that transmits according to the law of electromagnetic induction.Rotating shaft is one of most important part in the motor, is subjected to effects such as rotor gravity, electromagnet pull and moment of torsion in running, unreasonablely off-axis will take place or cause the situation that stator and rotor are wiped mutually because rotating shaft deflection is excessive if design.This just requires the rigidity of designer's countershaft in design and intensity that accurate a calculating is arranged, and machine shaft is accurately designed and optimizes, thereby guarantees the reliability of motor.
Existing rotating shaft design, after the final assembling of bearing, the bearing outer side surface is almost parallel with axial end, during so final rotor work because the axial float of rotating shaft, motor casing to the impact force of axle can directly apply with bearing inner ring on, accelerate the wearing and tearing of bearing, damaged bearing.
The model utility content
For solving the defective that exists in the above-mentioned prior art, the utility model provides a kind of machine shaft, contacts the location by the newly-increased shaft shoulder fast with back end cover for motor, can play a very good protection to the bearing that is assemblied on the rotating shaft terminal shaft.
The technical solution of the utility model is for providing a kind of machine shaft, comprise the rotating shaft body, the end of described rotating shaft body has spindle nose, the other end of rotating shaft body is rotary head, the end face of described spindle nose end is provided with the shaft shoulder, the positioning hole corresponding matching that the described shaft shoulder and motor posterior end cover, described rotating shaft body offers for the rotating shaft body being fixedly installed to epitrochanterian arc keyway near the position of rotary head, and the number of described arc keyway is 4.
Preferably, in the above-mentioned machine shaft, described rotating shaft body is coated with one deck insulation wearing layer,
Preferably, in the above-mentioned machine shaft, the tail end of the described shaft shoulder offers fillet.
Preferably, in the above-mentioned machine shaft, the cooperation place external diameter of described rotating shaft body and rotor is provided with the anaerobism glue-line.
Preferably, in the above-mentioned machine shaft, described machine shaft also comprises the axle sleeve with a through hole, an end of described axle sleeve and rotary head interference fit, and the described axle sleeve the other end is the circular hole that is provided with internal spline.
Preferably, in the above-mentioned machine shaft, the magnitude of interference of described axle sleeve and rotary head is the 0.03-0.06 millimeter.
The beneficial effects of the utility model are: the utility model is reasonable in design; can effectively avoid off-axis or cause that because rotating shaft deflection is excessive stator and rotor wipe mutually; contact the location by the newly-increased shaft shoulder fast with back end cover for motor; can play a very good protection to the bearing that is assemblied on the rotating shaft terminal shaft, the arc keyway on the rotating shaft body can guarantee firm being installed on the rotor of rotating shaft body.
Description of drawings
Fig. 1 is the structural representation of the utility model machine shaft;
1, spindle nose; 2, rotary head; 3, the shaft shoulder; 4, arc keyway; 5, axle sleeve; 6, internal spline.
Embodiment
By describing technology contents of the present utility model, structure characteristics in detail, realized purpose and effect, give explanation below in conjunction with mode of execution and conjunction with figs. are detailed.
See also Fig. 1, structural representation for the utility model machine shaft, this machine shaft comprises the rotating shaft body, the end of described rotating shaft body has spindle nose 1, the other end of rotating shaft body is rotary head 2, and the end face of described spindle nose 1 end is provided with the shaft shoulder 3, the positioning hole corresponding matching that the described shaft shoulder and motor posterior end cover, described rotating shaft body offers for the rotating shaft body being fixedly installed to epitrochanterian arc keyway 4 near the position of rotary head 2, and the number of described arc keyway 4 is 4.
When the utility model machine shaft uses, the shaft shoulder is inserted in the positioning hole that the motor posterior end covers, realize that rotating shaft contacts the location fast, the rotating shaft body is provided with arc keyway 4, arcuate structure imports it easily and installs, and with the joint phase-splitting chucking of the arc keyway 4 on the rotating shaft body with rotor, avoid the rotating shaft body fixing not firm, thereby cause off-axis or cause that because rotating shaft deflection is excessive stator and rotor wipe mutually.
As an improvement of the present utility model, in the above-mentioned machine shaft, described rotating shaft body is coated with the wearing layer of one deck insulation, can be silicone rubber insulation layer, can increase its working life, saves cost.
As an improvement of the present utility model, in the above-mentioned machine shaft, the tail end of the described shaft shoulder offers fillet.This kind structure imports it easily and installs.
As an improvement of the present utility model, in the above-mentioned machine shaft, the cooperation place external diameter of described rotating shaft body and rotor is provided with the anaerobism glue-line.
As an improvement of the present utility model, in the above-mentioned machine shaft, described machine shaft also comprises the axle sleeve 5 with a through hole, an end of described axle sleeve 5 and rotary head 2 interference fit, and described axle sleeve 5 the other ends are the circular hole that is provided with internal spline 6.The vehicle transmitting torque often uses splined.Motor side is internal spline 6 among Fig. 1, connects with the gear-box of vehicle or the external splines on the back axle, gives gear-box or back axle with the transmission of torque of motor.
It is on the axle sleeve 5 of through hole that internal spline need be processed at the center.The endoporus of axle sleeve is divided into two-part in the longitudinal direction: a part is internal spline, and another part is the round smooth hole that is connected with axle.Stretching on the axle has one section spindle nose, with the circular hole interference fit of axle sleeve.Through the long-term calculating of my company and test, the magnitude of interference of the utility model axle sleeve 5 and rotary head 2 reliability when 0.03-0.06mm is the highest, and magnitude of interference is too small to skid easily, and the excessive spindle nose of magnitude of interference cracks axle sleeve easily.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. machine shaft, it is characterized in that, comprise the rotating shaft body, the end of described rotating shaft body has spindle nose, the other end of rotating shaft body is rotary head, and the end face of described spindle nose end is provided with the shaft shoulder, the positioning hole corresponding matching that the described shaft shoulder and motor posterior end cover, described rotating shaft body offers for the rotating shaft body being fixedly installed to epitrochanterian arc keyway near the position of rotary head, and the number of described arc keyway is 4.
2. machine shaft according to claim 1 is characterized in that, described rotating shaft body is coated with one deck insulation wearing layer.
3. machine shaft according to claim 1 is characterized in that, the tail end of the described shaft shoulder offers fillet.
4. machine shaft according to claim 1 is characterized in that, the cooperation place external diameter of described rotating shaft body and rotor is provided with the anaerobism glue-line.
5. machine shaft according to claim 1 is characterized in that, described machine shaft also comprises the axle sleeve with a through hole, an end of described axle sleeve and rotary head interference fit, and the described axle sleeve the other end is the circular hole that is provided with internal spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167040 CN203146562U (en) | 2013-04-07 | 2013-04-07 | Motor rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167040 CN203146562U (en) | 2013-04-07 | 2013-04-07 | Motor rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146562U true CN203146562U (en) | 2013-08-21 |
Family
ID=48974088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320167040 Expired - Fee Related CN203146562U (en) | 2013-04-07 | 2013-04-07 | Motor rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715664A (en) * | 2014-12-04 | 2016-06-29 | 王益 | Motor operation rotating shaft |
-
2013
- 2013-04-07 CN CN 201320167040 patent/CN203146562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715664A (en) * | 2014-12-04 | 2016-06-29 | 王益 | Motor operation rotating shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007067738A3 (en) | A rotor assembly having a reduced back portion and method of manufacturing same | |
| CN204916962U (en) | Location and transmission structure suitable for roller sprocket | |
| CN203146562U (en) | Motor rotating shaft | |
| CN206850552U (en) | P-m rotor assembly and direct current generator | |
| JP2015087794A5 (en) | ||
| CN205278129U (en) | Encoder connector | |
| CN209510897U (en) | A kind of rear wheel hub motors axis | |
| CN202673974U (en) | Motor shaft | |
| CN202963476U (en) | Motorized spindle rotor core double-conical-surface locating mechanism | |
| CN207148288U (en) | High rotating speed large-torque electrical automobile drive electric motor testing stand | |
| CN204175776U (en) | A kind of machine shaft | |
| CN203382441U (en) | Direct connection motor of electric hoist | |
| CN207961004U (en) | Fan | |
| CN202231533U (en) | Motor sealing structure of development machine | |
| CN106130313B (en) | A kind of increasing torque permanent magnet retarder | |
| CN210724357U (en) | Light rotor structure of permanent magnet motor | |
| CN205265419U (en) | Unilateral bearing motor | |
| CN104741633B (en) | A kind of spindle motor rotor self-locking type assembles device | |
| CN204200663U (en) | A kind of oil pump shaft coupling | |
| CN204316245U (en) | With the brushless dc motor-car slowspeed machine of clutch structure | |
| CN203599541U (en) | High-speed electric spindle core structure | |
| CN205647163U (en) | Motor rotating shaft | |
| CN207069803U (en) | A kind of speed changer and motor integration power assembly | |
| CN209250464U (en) | Cage rotor | |
| CN204131303U (en) | Power equipment rotor main shaft is without moment of flexure drive mechanism |
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: 20130821 Termination date: 20140407 |