CN204985288U - Stabilize civilian dress type rotor shaft - Google Patents

Stabilize civilian dress type rotor shaft Download PDF

Info

Publication number
CN204985288U
CN204985288U CN201520723350.0U CN201520723350U CN204985288U CN 204985288 U CN204985288 U CN 204985288U CN 201520723350 U CN201520723350 U CN 201520723350U CN 204985288 U CN204985288 U CN 204985288U
Authority
CN
China
Prior art keywords
axle
angle
chamfering
chamfer
rotor shaft
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
Application number
CN201520723350.0U
Other languages
Chinese (zh)
Inventor
周树勋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo IDA Shaft Co Ltd
Original Assignee
Ningbo IDA Shaft Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo IDA Shaft Co Ltd filed Critical Ningbo IDA Shaft Co Ltd
Priority to CN201520723350.0U priority Critical patent/CN204985288U/en
Application granted granted Critical
Publication of CN204985288U publication Critical patent/CN204985288U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a stabilize civilian dress type rotor shaft, including the first axle body, the second axle body and the third axis body of connecting in order, be equipped with first bearing installation end between the first axle body and the second axle body, be equipped with second bearing construction section between the second axle body and the third axis body, the other end of the relative the second axle body of the first axle body is equipped with the guide part, the guide part is including the first chamfer and the second chamfer that connect gradually, the other end and the terminal surface of the first axle body of the relative second chamfer of first chamfer are connected, and the angle an of first chamfer is greater than the angle b of second chamfer, and through first chamfer and the second chamfer that links to each other, and the angle an of first chamfer is greater than the angle b of second chamfer, has realized mode direction interference fit's part and being connected of the first axle body with the low -angle promptly, and it is very long that the length that has realized the guide part again can not become owing to there being the existence of wide -angle first chamfer.

Description

One stablizes civilian dress type rotor shaft
Technical field
The utility model relates to a kind of machine field, in particular, relates to the rotor shaft inside motor.
Background technique
In today of industrial technology fast development, motor plays important role wherein, and it obtains in the every field of national economy and extensively meets the tendency.Therefore, the setting of each components and parts of motor is particularly important.Rotor shaft special position is fixed in order to make rotor iron core, common rotor shaft designs one section of twigs of the chaste tree, and ensureing enough axial confining forces and radial moment, common axial pressure assembling force is about 2500-4500 ox, and the axle saltus step of so large pressing-in force to slender axles is huge challenge.
And can be inserted in the parts with cover apertured of commutator, bearing race snap and so on axle, these parts have plenty of slipping into of directly coordinating from the tip-clearance of axle, and what have is then knocking in of interference fit.And for the parts needing interference fit to knock in, then need to arrange angle of deflection in the end of axle.
If but the angle of deflection gradient arranged is excessive, then can arrange guide effect and be deteriorated, parts are not easy to knock in, easily stuck; And if the setting of the gradient of angle of deflection is too small, really incorporates parts guiding and knock in, but the length of angle of deflection can be made long, increase the difficulty of processing of axle; Or practical fillet guiding, but the difficulty of processing of fillet is large, and cost is high, is not suitable for batch process.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of rotor shaft conveniently needing the parts installing interference fit.
For achieving the above object, the utility model provides following technological scheme: one stablizes civilian dress type rotor shaft, comprise the first axle body connected in turn, the second axle body and three-axis body, clutch shaft bearing mounting end is provided with between described the first axle body and the second axle body, the second bearing construction section is provided with between the second axle body and three-axis body, the other end of the relative the second axle body of described the first axle body is provided with guide portion, described guide portion comprises the first chamfering and the second chamfering that connect successively, the relative the other end of the second chamfering of described first chamfering is connected with the end face of the first axle body, and the angle a of the first chamfering is greater than the angle b of the second chamfering.
The utility model is set to further: described angle a is 45 °, and angle b is 30 °.
The utility model is set to further: described the second axle body is provided with the spaced straight knurling of multistage.
The utility model is set to further: the end face of described three-axis body is provided with threaded mounting hole, and the diameter of three-axis body is less than the diameter of the second axle body.
Compared with prior art, the utility model has the advantage of: be provided with guide portion by the end at the first axle body, by the first connected chamfering and the second chamfering, and the angle a of the first chamfering is greater than the angle b of the second chamfering, namely achieve and to lead the parts of interference fit and the connection of the first axle body in low-angle mode, it is very long that the length achieving again guide portion can not become owing to there being the existence of the first chamfering of wide-angle, the design of this dual chamfering, can a continuous knife processing and forming when chamfering, reduce difficulty of processing; By the spaced straight knurling of multistage arranged on the second axle body, reduce when the pressure stress in rotor shaft loading rotor iron core process, the power of press-in is that piecewise uniform increases, and after making to press-fit village's iron core, the axle of rotor shaft is jumped in less margin of error; Be less than the second axle body by what arranged by the diameter of three-axis body, achieving can be more smooth and easy when exporting from three-axis body, and by threaded mounting hole, realizes the connectivity robustness with the parts of its installation.
Accompanying drawing explanation
Fig. 1 is the overall schematic of a kind of stable civilian dress type rotor shaft embodiment of the utility model;
Fig. 2 is the A portion enlarged diagram of Fig. 1.
In figure, 1, the first axle body; 11, the first chamfering; 12, the second chamfering; 2, clutch shaft bearing construction section; 3, the second axle body; 31, straight knurling; 4, the second bearing construction section; 5, three-axis body; 51, threaded mounting hole.
Embodiment
Stablize civilian dress type rotor shaft embodiment with reference to accompanying drawing 1 to 2 pair of the utility model one to be described further.
One stablizes civilian dress type rotor shaft, comprise the first axle body 1 connected in turn, the second axle body 3 and three-axis body 5, clutch shaft bearing mounting end is provided with between described the first axle body 1 and the second axle body 3, the second bearing construction section 4 is provided with between the second axle body 3 and three-axis body 5, the other end of the relative the second axle body 3 of described the first axle body 1 is provided with guide portion, described guide portion comprises the first chamfering 11 and the second chamfering 12 connected successively, the other end of relative second chamfering 12 of described first chamfering 11 is connected with the end face of the first axle body 1, and the angle a of the first chamfering 11 is greater than the angle b of the second chamfering 12, described angle a is 45 °, angle b is 30 °.
According to said structure and accompanying drawing, the second axle body 3 and rotor iron core realize installing, clutch shaft bearing construction section 2 and the second bearing construction section 4 install bearing, then on the first axle body 1 interference fit knock in retaining ring, bearing on clutch shaft bearing construction section 2 is fixed, and when installation retaining ring, owing to being provided with guide portion in the end of the first axle body 1, when retaining ring is inserted in the first axle body 1, can first enter in the second chamfering 12 through the guiding of the first chamfering 11, because the angle a of the first chamfering 11 is larger, the angle b of the second chamfering 12 is less, so the first chamfering 11 plays guide effect, second chamfering 12 can playing interference fit with retaining ring compresses effect gradually, namely achieve and to lead the parts of interference fit and the connection of the first axle body 1 in low-angle mode, it is very long that the length achieving again guide portion can not become owing to there being the existence of the first chamfering 11 of wide-angle, the design of this dual chamfering, can a continuous knife processing and forming when chamfering, reduce difficulty of processing.
Further, described the second axle body 3 is provided with the spaced straight knurling 31 of multistage, and reduce when the pressure stress in rotor shaft loading rotor iron core process, the power of press-in is that piecewise uniform increases, after making to press-fit village's iron core, the axle of rotor shaft is jumped in less margin of error.
Finally, be less than the second axle body 3 by what arranged by the diameter of three-axis body 5, achieving can be more smooth and easy when exporting from three-axis body 5, and by threaded mounting hole 51, realizes the connectivity robustness with the parts of its installation.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (4)

1. a stable civilian dress type rotor shaft, comprise the first axle body, the second axle body and the three-axis body that connect in turn, clutch shaft bearing mounting end is provided with between described the first axle body and the second axle body, the second bearing construction section is provided with between the second axle body and three-axis body, it is characterized in that, the other end of the relative the second axle body of described the first axle body is provided with guide portion, described guide portion comprises the first chamfering and the second chamfering that connect successively, the relative the other end of the second chamfering of described first chamfering is connected with the end face of the first axle body, and the angle a of the first chamfering is greater than the angle b of the second chamfering.
2. one according to claim 1 stablizes civilian dress type rotor shaft, it is characterized in that, described angle a is 45 °, and angle b is 30 °.
3. one according to claim 1 stablizes civilian dress type rotor shaft, it is characterized in that, described the second axle body is provided with the spaced straight knurling of multistage.
4. the one according to claim 1 or 2 or 3 stablizes civilian dress type rotor shaft, and it is characterized in that, the end face of described three-axis body is provided with threaded mounting hole, and the diameter of three-axis body is less than the diameter of the second axle body.
CN201520723350.0U 2015-09-17 2015-09-17 Stabilize civilian dress type rotor shaft Expired - Fee Related CN204985288U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520723350.0U CN204985288U (en) 2015-09-17 2015-09-17 Stabilize civilian dress type rotor shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520723350.0U CN204985288U (en) 2015-09-17 2015-09-17 Stabilize civilian dress type rotor shaft

Publications (1)

Publication Number Publication Date
CN204985288U true CN204985288U (en) 2016-01-20

Family

ID=55119661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520723350.0U Expired - Fee Related CN204985288U (en) 2015-09-17 2015-09-17 Stabilize civilian dress type rotor shaft

Country Status (1)

Country Link
CN (1) CN204985288U (en)

Similar Documents

Publication Publication Date Title
CN204985288U (en) Stabilize civilian dress type rotor shaft
CN203840111U (en) Car pivoted window motor
CN202889129U (en) Expanding tire
CN205315517U (en) Bearing connection structure among speed change mechanism
CN202612105U (en) Screw pump stator connector
CN204205755U (en) Rotor and motor
CN204789693U (en) Interference formula electric energy meter connector
CN202266585U (en) Strengthened bearing
CN202579279U (en) Device for combining horizontal type multi-stage pump rolling bearing
CN204921906U (en) Planet wheel subassembly structure
CN204068463U (en) Armature spindle and motor
CN202962527U (en) Rack bearing assembling mechanism of jaw crusher
CN202833579U (en) Universal steering bearing
CN102916534B (en) Expander
CN203158533U (en) Roller pin sleeve assembly
CN202276211U (en) Rotor structure of aviation permanent magnet synchronous alternator
CN204442089U (en) General motor for speed reducer
CN201799930U (en) Grinding spindle lengthening mechanism
CN201973118U (en) Locating structure of straight shaft bearing
CN202468729U (en) Connecting structure of long shaft and bearing
CN203617854U (en) Prepositioning device convenient for motor rotor into-shaft assembly
CN208702887U (en) A kind of rotating shaft
CN201975585U (en) High-low frequency mixed electric connector rapid in assembly
CN210461536U (en) Assembly structure of crankshaft and balance shaft
CN207638452U (en) A kind of motor

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20160917

CF01 Termination of patent right due to non-payment of annual fee