CN206302275U - A kind of rotor stack - Google Patents
A kind of rotor stack Download PDFInfo
- Publication number
- CN206302275U CN206302275U CN201621338085.5U CN201621338085U CN206302275U CN 206302275 U CN206302275 U CN 206302275U CN 201621338085 U CN201621338085 U CN 201621338085U CN 206302275 U CN206302275 U CN 206302275U
- Authority
- CN
- China
- Prior art keywords
- hole
- rotor
- pin
- drive shaft
- along
- 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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- Rotary Pumps (AREA)
Abstract
This application discloses a kind of rotor stack, its drive shaft for including rotor and the axis hole through rotor, also including pin；The first through hole is offered on the side wall of rotor, first through hole forms expansion section towards the side of rotor exterior along the circumferential extension of the first through hole；The fixing hole corresponding with the first through hole is offered on the driving shaft；Pin includes head and afterbody, has blind hole along the axially arranged of pin on the end face of the afterbody of pin；The head of pin is entered into fixing hole after passing through above-mentioned first through hole, blind hole is at least partially disposed in expansion section, the side wall that blind hole is located at the part in expansion section is expanded along the radial direction of pin to surrounding, is fixedly connected with the rotor pin, while making drive shaft be fixedly connected with rotor.Due to there is pin, even if there is small gap between the axis hole and drive shaft of rotor, operationally, will not also be relatively rotated between rotor and drive shaft, rotor can be made to use the usage cycles of setting.
Description
Technical field
The utility model is related to the rotor stack that the rotor of oil pump and drive shaft are constituted.
Background technology
In lubricating oil pump, the rotation of rotor is to lean on the drive shaft being connected with rotor to be attached, the company of rotor and drive shaft
Connect the connected mode generally using shaft hole matching, due to the miniaturized structure of rotor, the thickness of the side wall of rotor than relatively thin,
In long-term operation process, the material of rotor can gradually produce plastic deformation, the axis hole of rotor to the cohesive force of drive shaft gradually
Reduce, when cohesive force is less than resistance suffered by rotor, drive shaft will relatively rotate with rotor, and this is to be accomplished by more
The accessory for renewing, but in this case, the service life of rotor and drive shaft is simultaneously not yet due, which results in certain wave
Take.
Utility model content
To solve the above problems, the utility model proposes a kind of rotor stack, rotor in the rotor stack and
Drive shaft is closely connected together, and the axis hole of rotor will not be caused to drop the cohesive force of drive shaft because of the plastic deformation of rotor
Low, so that drive shaft relatively rotates with rotor, specific technical scheme is as follows：
A kind of rotor stack, its drive shaft for including rotor and the axis hole through rotor, it also includes pin；Described turn
The first through hole is offered on the side wall of son, first through hole expands towards the side of rotor exterior along the circumference of the first through hole
Spread is into expansion section；The fixing hole corresponding with above-mentioned first through hole is offered on the driving shaft；The pin includes head
And afterbody, there is blind hole along the axially arranged of pin on the end face of the afterbody of pin；The head of the pin passes through above-mentioned first
Entered into fixing hole after through hole, the blind hole is at least partially disposed in expansion section, blind hole is located at the part in expansion section
Side wall is expanded along the radial direction of pin to surrounding, is fixedly connected with the rotor pin, while making drive shaft be fixedly connected with rotor.
The first through hole and fixing hole are opened up in the application on rotor and drive shaft, and the first through hole is passed through with pin
Into in fixing hole, rotor is fixedly connected with drive shaft, due to there is pin, between the axis hole and drive shaft of rotor i.e.
Make have small gap, operationally, will not also be relatively rotated between rotor and drive shaft, rotor can be made to use setting
Usage cycles.
Further, the fixing hole of the drive shaft forms through hole through drive shaft.After being processed into through hole, pin can increase with
The contact area of drive shaft, can be such that drive shaft increases with the stress surface of pin, it is ensured that the service life of rotor stack.
Further, with the opposing sidewalls of the side wall of the rotor for offering the first through hole on offer second and run through
Hole, the pin is entered into the second through hole after the fixing hole of drive shaft.The design further increases the stress surface of pin,
Increase lifting surface area to be twice.
Further, on the rotor fixing hole in the first through hole, the second through hole and drive shaft along and driving
The direction of the axis perpendicular of axle is set.Design positioning easy to process.
Further, the end face at the two ends of the pin is no more than the outer peripheral face of rotor.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model.
Fig. 2 is the structural representation of rotor in Fig. 1.
Fig. 3 is the structural representation of drive shaft in Fig. 1.
Fig. 4 is the structural representation of pin in Fig. 1.
Specific embodiment
Embodiment 1：
Refering to Fig. 1~Fig. 4,
A kind of rotor stack, its drive shaft 10 for including rotor 20 and the axis hole 25 through rotor, it also includes pin
30；The first through hole 23 is offered on the side wall 21 of the rotor, first through hole is towards the side of rotor exterior along first
The circumferential extension of through hole 23 forms expansion section 22, in the opposing sidewalls with the side wall of the rotor for offering the first through hole
On offer the second through hole 24；The fixing hole 12 corresponding with above-mentioned first through hole 23 is offered in drive shaft 10；Institute
Stating pin 30 includes head 32 and afterbody 33, has blind hole 35 along the axially arranged of pin on the end face of the afterbody 35 of pin 30；
The head of the pin is entered into the second through hole after passing through above-mentioned first through hole through fixing hole, the part position of the blind hole
In in expansion section, the side wall that blind hole is located at the part in expansion section is expanded along the radial direction of pin to surrounding, pin is consolidated with rotor
Fixed connection, while making drive shaft be fixedly connected with rotor.
It is appreciated that above-mentioned second through hole can be cancelled, being provided only with the first through hole can also reach enhancing drive shaft
The effect of the fastening force between rotor.
It is also understood that above-mentioned fixing hole can not penetrate drive shaft, to the greatest extent in the form of blind hole.
In the present embodiment, on rotor fixing hole in the first through hole, the second through hole and drive shaft along and drive
The direction of the axis perpendicular of moving axis is set.It is appreciated that above-mentioned first through hole, the second through hole and fixing hole can also
There is an angle relative to the axis of drive shaft, but can so increase the difficulty of processing in above-mentioned each hole, make the first through hole, second
Through hole and fixing hole are vertical relative to the axis of drive shaft, favorably with the machining accuracy and the difficulty of reduction processing in each hole.
In the present embodiment, the end face at the two ends of the pin is no more than the outer peripheral face of rotor.If pin is any
One end exceedes the outer peripheral face of rotor, then other parts can be caused to scratch, and whole lubricating oil pump is also can result in when serious and is scrapped.
Claims (5)
1. a kind of rotor stack, its drive shaft for including rotor and the axis hole through rotor, it is characterised in that also including pin
Nail；
The first through hole is offered on the side wall of the rotor, first through hole runs through towards the side of rotor exterior along first
The circumferential extension in hole forms expansion section；The fixing hole corresponding with above-mentioned first through hole is offered on the driving shaft；The pin
Nail includes head and afterbody, has blind hole along the axially arranged of pin on the end face of the afterbody of pin；
The head of the pin is entered into fixing hole after passing through above-mentioned first through hole, and the blind hole is at least partially disposed at expansion
In portion, the side wall that blind hole is located at the part in expansion section is expanded along the radial direction of pin to surrounding, is fixedly connected with the rotor pin,
Drive shaft is set to be fixedly connected with rotor simultaneously.
2. rotor stack according to claim 1, it is characterised in that the fixing hole of the drive shaft runs through drive shaft shape
Into through hole.
3. rotor stack according to claim 2, it is characterised in that with the rotor for offering the first through hole
Side wall opposing sidewalls on offer the second through hole, the pin enters into the second through hole after the fixing hole of drive shaft
It is interior.
4. rotor stack according to claim 3, it is characterised in that the first through hole on the rotor, second are passed through
Fixing hole in perforation and drive shaft is set along the direction with the axis perpendicular of drive shaft.
5. rotor stack according to claim 1, it is characterised in that the end face at the two ends of the pin is no more than turning
The outer peripheral face of son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338085.5U CN206302275U (en) | 2016-12-07 | 2016-12-07 | A kind of rotor stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338085.5U CN206302275U (en) | 2016-12-07 | 2016-12-07 | A kind of rotor stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302275U true CN206302275U (en) | 2017-07-04 |
Family
ID=59213274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621338085.5U Expired - Fee Related CN206302275U (en) | 2016-12-07 | 2016-12-07 | A kind of rotor stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302275U (en) |
-
2016
- 2016-12-07 CN CN201621338085.5U patent/CN206302275U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |