CN207740725U - A kind of positive six sides special-shaped seamless steel sleeve - Google Patents
A kind of positive six sides special-shaped seamless steel sleeve Download PDFInfo
- Publication number
- CN207740725U CN207740725U CN201820001521.2U CN201820001521U CN207740725U CN 207740725 U CN207740725 U CN 207740725U CN 201820001521 U CN201820001521 U CN 201820001521U CN 207740725 U CN207740725 U CN 207740725U
- Authority
- CN
- China
- Prior art keywords
- seamless steel
- positive
- plane
- outer tube
- shaped seamless
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of positive six sides special-shaped seamless steel sleeves, belong to special-shaped seamless steel pipe technical field, including outer tube and inner tube, and the outer tube and said inner tube grafting, the inner surface of affiliated outer tube are identical as the external surface shape of said inner tube.The cross section of the outer tube outer surface is regular hexagon, the outer pipe internal surface includes three planes one and three convex surfaces, the plane one is alternately distributed with the convex surface, angle between the two neighboring plane one is 60 °, the convex surface is arc surface, and the corresponding central angle in the convex surface is 60 120 °.The positive six sides special-shaped seamless steel sleeve of one kind of the utility model using the above structure, can solve the problems, such as that Hollow Transmission Shafts torsional strength is low, transmission is unstable.
Description
Technical field
The utility model is related to special-shaped seamless steel pipe fields, more particularly, to a kind of positive six sides special-shaped seamless steel sleeve.
Background technology
Axis as transmission torque on farm machinery is mostly solid shafting, and solid shafting not only increases the weight of machinery,
And easily cause the waste of material.Hollow steel pipe is although light-weight, materials'use amount is few, but cannot be by due to its intensity is low
For transmitting torque.
Utility model content
The purpose of this utility model is to provide a kind of positive six sides special-shaped seamless steel sleeve, solves Hollow Transmission Shafts torsional strength
Problem low, transmission is unstable.
To achieve the above object, the utility model provides a kind of positive six sides special-shaped seamless steel sleeve, including outer tube and interior
The cross section of pipe, the outer tube and said inner tube grafting, the outer tube outer surface is regular hexagon, and the outer pipe internal surface includes
Three planes one and three convex surfaces, the plane one are alternately distributed with the convex surface, the folder between the two neighboring plane one
Angle is 60 °, and the convex surface is arc surface.
Preferably, the corresponding central angle in the convex surface is 60-120 °.
Preferably, the outer surface of said inner tube includes three planes two and three concave surfaces, the plane two and the concave surface
It is alternately distributed, the width of the plane two is less than the width of the plane one, and the angle between the two neighboring plane two is
60 °, the concave surface is arc surface compatible with the convex surface, and the inner surface cross section of said inner tube is regular hexagon.
Preferably, the corresponding central angle in the concave surface is 60-120 °.
Preferably, the outer tube and said inner tube are solid drawn tube.
The positive six sides special-shaped seamless steel sleeve of one kind described in the utility model, outer tube pass through plane one and plane two with inner tube
It is limited, plane limit is more stable, improves the stability being driven between outer tube and inner tube.The convex surface of outer tube and inner tube it is recessed
Face coordinates for bearing torque, and the torsion of a part can be transformed into the compression of inner tube, the stability of transmission is improved, make set
Pipe can bear the torsion of bigger.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of positive six sides special-shaped seamless steel sleeve embodiment of the utility model；
Fig. 2 is a kind of outer tube cross-sectional structure schematic diagram of positive six sides special-shaped seamless steel sleeve embodiment of the utility model；
Fig. 3 is a kind of inner tube cross-sectional structure schematic diagram of positive six sides special-shaped seamless steel sleeve embodiment of the utility model；
Reference numeral
1, outer tube；2, inner tube；3, plane one；4, convex surface；5, plane two；6, concave surface.
Specific implementation mode
Embodiment
Fig. 1 is a kind of structural schematic diagram of positive six sides special-shaped seamless steel sleeve embodiment of the utility model, and Fig. 2 is this practicality
A kind of outer tube cross-sectional structure schematic diagram of novel positive six sides special-shaped seamless steel sleeve embodiment.As shown in Figure 1 and Figure 2, Yi Zhongzheng
Six side special-shaped seamless steel sleeves, including outer tube 1 and inner tube 2, inner tube 2 are inserted into the internal cavities of outer tube 1, inner tube 2 and outer tube 1
It is the solid drawn tube using cold-drawing technology production.Inner tube 2 is independent separate structure, the outer surface of inner tube 2 with outer tube 1
It is identical as the inner surface configuration of outer tube 1, but the exterior surface dimension outline of inner tube 2 is less than the inner surface size of outer tube 1, makes inner tube
2 are inserted into outer tube 1.The outer surface of inner tube 2 and the inner surface size of outer tube 1 can not differ too big, it is ensured that inner tube 2 with
Drive connection between outer tube 1.The cross section of 1 outer surface of outer tube is regular hexagon, and 1 inner surface of outer tube includes three planes 1
With three convex surfaces 4, plane 1 is alternately distributed with convex surface 4.Angle between two adjacent planes 1 is 60 °, i.e., three flat
Face 1 is evenly distributed on a circumference, is distributed for circumference array.Convex surface 4 is arc surface, and 4 corresponding central angle of convex surface is
60-120 °, the chord length of 4 cross section circular arc of convex surface is of same size with plane 1.
Fig. 3 is a kind of inner tube cross-sectional structure schematic diagram of positive six sides special-shaped seamless steel sleeve embodiment of the utility model.
As shown in figure 3,2 outer surface of inner tube includes three planes 25 and three concave surfaces 6, plane 25 is also to be alternately distributed with concave surface 6.It is flat
Face 25 and concave surface 6 are corresponded with plane 1 and convex surface 4 respectively, and the width of plane 25 is slightly less than the width of plane 1.Phase
Angle between adjacent two planes 25 is 60 °, and the shape of concave surface 6 is identical as the shape on convex surface 4.The inner surface cross section of inner tube 2
For regular hexagon.
The plane 1 of 1 inner surface of outer tube forms the groove of circumferentially array, 2 outer surface of inner tube with convex surface 4 on an internal surface
Plane 25 and concave surface 6 form the boss of circumferentially array on the outer surface, the boss of inner tube 2 is just caught in the groove of outer tube 1
It is interior.The plane 1 of outer tube 1 and the cooperation of plane 25 of inner tube 2 have the function of limit, and convex surface 4 can bear to be driven with concave surface 6
Shearing force in the process, convex surface 4 coordinate the contact area for increasing outer tube 1 and being driven with inner tube 2 with concave surface 6, improve the steady of transmission
It is qualitative.
Therefore, the positive six sides special-shaped seamless steel sleeve of one kind of the utility model using the above structure, can solve hollow biography
The problem that moving axis torsional strength is low, transmission is unstable.
It is specific embodiment of the present utility model above, but the scope of protection of the utility model should not be limited to thoses mentioned above.Appoint
What those skilled in the art is in the technical scope disclosed by the utility model, the change or replacement that can be readily occurred in,
It should be covered within the scope of the utility model, therefore the scope of protection of the utility model should be limited with claims
Subject to fixed protection domain.
Claims (5)
1. a kind of positive six sides special-shaped seamless steel sleeve, it is characterised in that：Including outer tube and inner tube, the outer tube is inserted with said inner tube
It connects, the cross section of the outer tube outer surface is regular hexagon, and the outer pipe internal surface includes three planes one and three convex surfaces, institute
It states plane one to be alternately distributed with the convex surface, the angle between the two neighboring plane one is 60 °, and the convex surface is circular arc
Face.
2. the positive six sides special-shaped seamless steel sleeve of one kind according to claim 1, it is characterised in that：The corresponding circle in the convex surface
Heart angle is 60-120 °.
3. the positive six sides special-shaped seamless steel sleeve of one kind according to claim 1, it is characterised in that：The outer surface of said inner tube
Including three planes two and three concave surfaces, the plane two is alternately distributed with the concave surface, and the width of the plane two is less than institute
The width of plane one is stated, the angle between the two neighboring plane two is 60 °, and the concave surface is compatible with the convex surface
The inner surface cross section of arc surface, said inner tube is regular hexagon.
4. the positive six sides special-shaped seamless steel sleeve of one kind according to claim 3, it is characterised in that：The corresponding circle in the concave surface
Heart angle is 60-120 °.
5. the positive six sides special-shaped seamless steel sleeve of one kind according to claim 1, it is characterised in that：The outer tube and it is described in
Pipe is solid drawn tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820001521.2U CN207740725U (en) | 2018-01-02 | 2018-01-02 | A kind of positive six sides special-shaped seamless steel sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820001521.2U CN207740725U (en) | 2018-01-02 | 2018-01-02 | A kind of positive six sides special-shaped seamless steel sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207740725U true CN207740725U (en) | 2018-08-17 |
Family
ID=63121419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820001521.2U Expired - Fee Related CN207740725U (en) | 2018-01-02 | 2018-01-02 | A kind of positive six sides special-shaped seamless steel sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207740725U (en) |
-
2018
- 2018-01-02 CN CN201820001521.2U patent/CN207740725U/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: 20180817 Termination date: 20210102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |