CN208281344U - A kind of built-up shaft type component - Google Patents
A kind of built-up shaft type component Download PDFInfo
- Publication number
- CN208281344U CN208281344U CN201820922633.1U CN201820922633U CN208281344U CN 208281344 U CN208281344 U CN 208281344U CN 201820922633 U CN201820922633 U CN 201820922633U CN 208281344 U CN208281344 U CN 208281344U
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- Prior art keywords
- lines
- axis
- built
- bellmouth
- shaft type
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Abstract
The utility model discloses a kind of built-up shaft type components, including axis and pored component；The axis is equipped with protrusion, and protrusion offers a plurality of lines；It is characterized by: the hole of the pored component and axis male cooperation is bellmouth, and the small bore end of bellmouth not chamfering；A plurality of lines in the protrusion is obliquely installed, and forms angle with the center line of axis.The utility model solves the problems, such as that part cylindrical hole pushes crown of roll and plays lines, even and if this kind of built-up shaft has the tendency that loosening, also due to the guiding role of raised lines, make the micro axial movement of parts on shaft, compensate the reduction of magnitude of interference, even closer and firm combination, reduces the risk of failure mode.
Description
Technical field
The utility model relates to shaft element technical fields, in particular to a kind of built-up shaft type component.
Background technique
Existing pored component (such as cam) and the combination of axis are: inner bore of part is to process on cylindrical hole or cylindrical hole
Radial slot, axis surface bulge lines and inner bore of part form interference fit when assembly indentation, reach and bear torque and axial force
Purpose.The size of magnitude of interference determines the firmness of assembly connection.Magnitude of interference is bigger, connects more secured.
Above-mentioned assembly method defect be no matter in hole machined radial slot whether, hole grown form is cylindrical hole, and hole is entering
On axis when raised lines, on axis raised lines some pushed by aperture so that magnitude of interference lower than being expected, reduces assembly
Reliability, have skid, the failure risk that falls off.And raised lines is predominantly parallel to shaft centre line on axis, once occur
It loosens, does not have compensation, lead to failure of skidding, fall off immediately.
Utility model content
The purpose of this utility model is to provide a kind of built-up shaft type components, so as to solve the deficiencies in the prior art.
To realize the utility model aim, the technical solution of use are as follows: a kind of built-up shaft type component, including axis and band
Hole part；The axis is equipped with protrusion, and protrusion offers a plurality of lines；It is characterized by: the pored component and crown of roll rise
The hole of cooperation is bellmouth, and the small bore end of bellmouth not chamfering；A plurality of lines in the protrusion is obliquely installed, and and axis
Center line formed angle.
Further, the macropore end chamfer of the bellmouth, convenient for assembly pored component.
Further, a plurality of lines is arranged in raised periphery uniform intervals.
Further, the taper angle of the bellmouth is 0-10 °.
Further, the taper angle of the bellmouth is 3 °.
Further, the lines and shaft centre line angle are 0-60 °.
The beneficial effects of the utility model are:
The utility model solve the problems, such as part cylindrical hole push fall crown of roll rise lines, even and if this kind of built-up shaft have
The trend of loosening, also due to the guiding role of raised lines, makes the micro axial movement of parts on shaft, compensate subtracting for magnitude of interference
Small, even closer and firm combination reduces the risk of failure mode.
Detailed description of the invention
Fig. 1 is the cooperation schematic diagram of axis and part provided by the utility model；
Fig. 2 is the structural schematic diagram of part bellmouth；
Fig. 3 makes the distribution schematic diagram of raised lines.
Specific embodiment
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Fig. 1-3 shows built-up shaft type component provided by the utility model, including axis 1 and pored component 2；The axis
1 is equipped with protrusion 3, and protrusion 3 offers a plurality of lines 5；The hole that the pored component 2 plays 3 cooperations with crown of roll is bellmouth 4,
And the small bore end 41 of bellmouth 4 not chamfering；A plurality of lines 5 on described raised 3 is obliquely installed, and linear with the center of axis 1
At angle.
42 chamfering of big nose end of bellmouth 4, convenient for assembly pored component 2；The a plurality of lines 5 is equal in raised 3 peripheries
It is even to be intervally arranged；The taper angle of the bellmouth 4 is 0-10 °；The taper angle of the bellmouth 4 is 3 °；The lines 5 with
1 centerlines of axis are 0-60 °.
In working condition, part 2 is by torque, since a plurality of lines 5 forms angle, this angle with the center line of axis 1
With guiding role, part 2 can be moved along lines 5 to big 42 direction of nose end is micro if any rotating tendency, thus make part 2 with
Axis 1 cooperates stronger.When part 2 is by axial force, if axial force, to big 42 direction of nose end, lines 5, which has, more enters taper
The trend in hole 4, axis 1 are bigger to drag；If axis 1 is to power to 41 direction of small bore end, since small bore end 41 is sharp, there is insertion axis 1
Trend hinders the axial movement of part 2.Therefore, regardless of by axis 1, to power direction, taper inner part 2 is than cylinder
The axial force that shape inner hole part is born is big.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of built-up shaft type component, including axis and pored component；The axis be equipped with protrusion, and protrusion offer it is a plurality of
Lines；It is characterized by: the hole of the pored component and axis male cooperation is bellmouth, and the small bore end of bellmouth not chamfering；
A plurality of lines in the protrusion is obliquely installed, and forms angle with the center line of axis.
2. built-up shaft type component according to claim 1, it is characterised in that: the macropore end chamfer of the bellmouth.
3. built-up shaft type component according to claim 1, it is characterised in that: a plurality of lines is in raised periphery
Uniform intervals arrangement.
4. built-up shaft type component according to claim 1, it is characterised in that: the taper angle of the bellmouth is 0-
10°。
5. built-up shaft type component according to claim 4, it is characterised in that: the taper angle of the bellmouth is
3°。
6. built-up shaft type component according to claim 1, it is characterised in that: the lines is with shaft centre line angle
0-60°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820922633.1U CN208281344U (en) | 2018-06-14 | 2018-06-14 | A kind of built-up shaft type component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820922633.1U CN208281344U (en) | 2018-06-14 | 2018-06-14 | A kind of built-up shaft type component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281344U true CN208281344U (en) | 2018-12-25 |
Family
ID=64699974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820922633.1U Active CN208281344U (en) | 2018-06-14 | 2018-06-14 | A kind of built-up shaft type component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412887A (en) * | 2018-06-14 | 2018-08-17 | 中汽成都配件有限公司 | A kind of built-up shaft type component and assembly technology |
-
2018
- 2018-06-14 CN CN201820922633.1U patent/CN208281344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412887A (en) * | 2018-06-14 | 2018-08-17 | 中汽成都配件有限公司 | A kind of built-up shaft type component and assembly technology |
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