CN206738375U - A kind of generator drive axle and hollow shaft coupling structure - Google Patents
A kind of generator drive axle and hollow shaft coupling structure Download PDFInfo
- Publication number
- CN206738375U CN206738375U CN201621276957.XU CN201621276957U CN206738375U CN 206738375 U CN206738375 U CN 206738375U CN 201621276957 U CN201621276957 U CN 201621276957U CN 206738375 U CN206738375 U CN 206738375U
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- Prior art keywords
- hollow shaft
- bolt
- power transmission
- drive axle
- transmission shaft
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Abstract
A kind of generator drive axle and hollow shaft coupling structure.Described structure includes：Hollow shaft (1), round nut (3), bolt (4) and power transmission shaft (6), power transmission shaft (6) is sleeved in hollow shaft (1), connected by spline, one end of hollow shaft (1) endoporus is provided with step, bolt (4) coordinates the one end for screwing in power transmission shaft (6) by screw thread, and bolt (4) is pressed on the step of hollow shaft (1) endoporus；Round nut (3) is provided with external screw thread, is coordinated by screw thread and screwed in hollow shaft (1), hollow shaft (1) same one end is in bolt (4).It is good, easy to assembly to propose a kind of processing technology, ensure power transmission shaft axially will not displacement, make power transmission shaft and hollow shaft positive connection, so as to ensure the Axile connection structure of the reliable normal work of generator.
Description
Technical field
A kind of Axile connection structure is the utility model is related to, more particularly to a kind of generator drive axle couples knot with hollow shaft
Structure.
Background technology
Aviation dc generator is arranged on the accessory drive gearbox of engine, by engine driving, by generator drive axle
Coordinate with the liner inner room cylinder involute spline flank of engine to realize transmission moment of torsion.The axle of generator is designed to power transmission shaft
With the composite structure of hollow shaft, it is characterized in that power transmission shaft can buffer the certain shock and vibration of engine, overload etc. to generating electricity
Influence caused by machine, ensure the normal work of generator.
Coupling between the power transmission shaft and hollow shaft of existing domestic aerogenerator or fastening means mainly has：
1st, Woodruff key+taper fit, use nut check
Use taper fit between power transmission shaft and hollow shaft, cone requirement on machining accuracy is high, and by power transmission shaft and hollow shaft
Cone in fact with grinding, making its contact area, processing time consuming is laborious and interchangeability is poor up to more than 95%.Woodruff key assembles in motor
Shi Buyi is assembled, also relatively time-consuming.The processability of product structure is not good enough.
2nd, the cooperation of cylinder involute spline flank, nut check.
Coordinated using cylinder involute spline flank, the structure of nut check, it is necessary to limited bit architecture or part.Typically exist
Step is provided with inside hollow shaft, step also is provided with power transmission shaft, the contact of two step surfaces is spacing in assembling, and power transmission shaft stretches out spline
The threaded shank portion of tooth, assemble nut check.This structure, power transmission shaft compare " dead ", it is impossible to play buffering engine well
Vibration, impact effect.
Also a kind of structure is that spring is housed between power transmission shaft and two steps of hollow shaft, causes spring pressure during nut check
Contracting has certain pressure.This structure transmission shaft has the vibration of good buffering engine, the ability of impact, but is driven
For axle by after the Torsinoal absorber failure of axially big impulsive force, particularly driving end, power transmission shaft, spring and nut can be axially
Displacement, reliability are bad.
The content of the invention
The purpose of this utility model：It is proposed that a kind of processing technology is good, easy to assembly, ensure that power transmission shaft will not position in axial direction
Move, make power transmission shaft and hollow shaft positive connection, so as to ensure the Axile connection structure of the reliable normal work of generator.
The technical solution of the utility model：A kind of generator drive axle and hollow shaft coupling structure, it is characterized in that described
Structure includes：Hollow shaft 1, round nut 3, bolt 4 and power transmission shaft 6, power transmission shaft 6 are sleeved in hollow shaft 1, connected by spline,
One end of the endoporus of hollow shaft 1 is provided with step, and bolt 4 coordinates the one end for screwing in power transmission shaft 6 by screw thread, and bolt 4 is pressed on sky
On the step of the endoporus of mandrel 1；
Round nut 3 is provided with external screw thread, is coordinated by screw thread and screwed in hollow shaft 1, it is same to be in hollow shaft 1 with bolt 4
End.
Preferably, described structure also includes stop washer 2, and stop washer 2 is provided with the hole with the head fits of bolt 4, only
Flange is provided with washer 2, groove is provided with round nut 3, the flange of stop washer 2 is located in the groove of round nut 3.
Preferably, multiple grooves are provided with described round nut 3.
Preferably, described spline is involute spline.
Preferably, 3 externally threaded hand of spiral of round nut is opposite with generator direction of rotation.
Preferably, packing ring 5 is provided between bolt 4 and endoporus step surface.
The advantages of the utility model：Compared with prior art, the technical program is positioned by bolt, nut, passes through screw thread
It is connected, assembly process process is good, and assembling is simple, and interchangeability is high.Location structure after assembling can realize flexible tune
It is whole, the buffer gap between power transmission shaft and hollow shaft is ensure that, realizes power transmission shaft buffering engine luggine, the effect of impact.
The technical program is spacing by bolt and round nut progress, improves the spacing reliability of power transmission shaft.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is partial enlarged drawing of the present utility model；
Fig. 3 is the structural representation of round nut；
Fig. 4 is the longitudinal sectional view of stop washer.
Embodiment：
The technical program is described in further detail below in conjunction with the accompanying drawings.
A kind of generator drive axle and hollow shaft coupling structure, it is characterized in that described structure includes：Hollow shaft 1, circle spiral shell
Mother 3, bolt 4 and power transmission shaft 6, power transmission shaft 6 are sleeved in hollow shaft 1, connected by spline, and one end of the endoporus of hollow shaft 1 is set
There is step, bolt 4 coordinates the one end for screwing in power transmission shaft 6 by screw thread, and bolt 4 is pressed on the step of the endoporus of hollow shaft 1；Circle spiral shell
Mother 3 is provided with external screw thread, is coordinated by screw thread and screwed in hollow shaft 1,1 same one end of hollow shaft is in bolt 4.
Described structure also includes stop washer 2, and stop washer 2 is provided with the hole with the head fits of bolt 4, stop washer 2
On be provided with flange, groove is provided with round nut 3, the flange of stop washer 2 is located in the groove of round nut 3.Stop washer 2 is logical
Cross flange to be defined the relative position of bolt and round nut, prevent bolt or round nut from vibrating and occurring under shock environment
Loosen, improve the reliability of axis connection.Multiple grooves are provided with described round nut 3, the technical scheme ensure that flange energy
It is enough to be smoothly caught in the groove of round nut 3, help to be driven being adjusted flexibly for shaft clearance.
Described spline is involute spline, and the technical scheme improves the stationarity and reliability of transmission.
3 externally threaded hand of spiral of round nut is with generator direction of rotation on the contrary, the technical scheme is prevented in high speed rotation
Turn the loosening that lower round nut 3 is threadedly coupled, and then improve the reliability of axis connection.
Packing ring 5 is provided between bolt 4 and endoporus step surface, the technical scheme provides to be driven the adjustment of shaft clearance
May, cause bolt screw-in depth to change by the thickness or quantity of adjusting washer, realize the adjustment of transmission shaft clearance.
Claims (6)
1. a kind of generator drive axle and hollow shaft coupling structure, it is characterized in that described structure includes：Hollow shaft (1), circle spiral shell
Female (3), bolt (4) and power transmission shaft (6), power transmission shaft (6) are sleeved in hollow shaft (1), connected by spline, in hollow shaft (1)
The one end in hole is provided with step, and bolt (4) coordinates the one end for screwing in power transmission shaft (6) by screw thread, and bolt (4) is pressed on hollow shaft
(1) on the step of endoporus；
Round nut (3) is provided with external screw thread, is coordinated by screw thread and screwed in hollow shaft (1), hollow shaft (1) is in bolt (4)
Same one end.
2. a kind of generator drive axle according to claim 1 and hollow shaft coupling structure, it is characterized in that described structure
Also include stop washer (2), stop washer (2) is provided with and the hole of bolt (4) head fits, is provided with and turns on stop washer (2)
Side, groove is provided with round nut (3), the flange of stop washer (2) is located in the groove of round nut (3).
3. a kind of generator drive axle according to claim 2 and hollow shaft coupling structure, it is characterized in that：Described circle spiral shell
Multiple grooves are provided with female (3).
4. a kind of generator drive axle according to claim 1 and hollow shaft coupling structure, it is characterized in that：Described spline
For involute spline.
5. a kind of generator drive axle according to claim 1 and hollow shaft coupling structure, it is characterized in that：Round nut (3)
Externally threaded hand of spiral is opposite with generator direction of rotation.
6. a kind of generator drive axle according to claim 1 and hollow shaft coupling structure, it is characterized in that：In bolt (4)
Packing ring (5) is provided between endoporus step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276957.XU CN206738375U (en) | 2016-11-24 | 2016-11-24 | A kind of generator drive axle and hollow shaft coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276957.XU CN206738375U (en) | 2016-11-24 | 2016-11-24 | A kind of generator drive axle and hollow shaft coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738375U true CN206738375U (en) | 2017-12-12 |
Family
ID=60555138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621276957.XU Active CN206738375U (en) | 2016-11-24 | 2016-11-24 | A kind of generator drive axle and hollow shaft coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683506A (en) * | 2020-12-16 | 2021-04-20 | 陕西航空电气有限责任公司 | Elastic shaft dynamic stress measuring structure |
-
2016
- 2016-11-24 CN CN201621276957.XU patent/CN206738375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683506A (en) * | 2020-12-16 | 2021-04-20 | 陕西航空电气有限责任公司 | Elastic shaft dynamic stress measuring structure |
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