CN208331019U - A kind of anti-bias expansion connecting sleeve - Google Patents
A kind of anti-bias expansion connecting sleeve Download PDFInfo
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- CN208331019U CN208331019U CN201820909394.6U CN201820909394U CN208331019U CN 208331019 U CN208331019 U CN 208331019U CN 201820909394 U CN201820909394 U CN 201820909394U CN 208331019 U CN208331019 U CN 208331019U
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- outer ring
- hole
- sleeve
- ring
- swollen
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Abstract
The utility model belongs to machine component field, disclose a kind of anti-bias expansion connecting sleeve, including inner ring, the first outer ring and the second outer ring, inner ring includes sleeve and be located on sleeve outer swollen, mouth is gradually reduced the thickness of sleeve from the middle to both ends, and outer swollen radius is gradually reduced in face from the middle to both ends；First outer ring and the second outer ring are cylinder, and stepped hole is equipped on the first outer ring and the second outer ring, and stepped hole includes first order hole and second level hole；The inner surface in first order hole and second level hole is inclined-plane；Multiple axial threaded holes are equipped on first outer ring, inner ring and the second outer ring, it is equipped in threaded hole for connecting the interior six point cylindrical head bolt tensed, interior six point cylindrical head bolt passes through the first outer ring and inner ring and penetrates on the second outer ring in corresponding threaded hole, and the first outer ring and the second outer ring are tensed to centre and squeeze inner ring.The utility model makes the workpiece stress equalization of installation, is not likely to produce deviation, reliability is higher.Therefore it is suitble to promote the use of.
Description
Technical field
The utility model belongs to machine component field, and in particular to a kind of anti-bias expansion connecting sleeve.
Background technique
The main function of expansion coupling sleeve is the connection effect instead of singly-bound and spline, and to realize parts, (such as gear flies
Wheel, belt pulley etc.) couple with axis, to transfer charge.By the effect of high-strength bolt when use, make inner ring and axis it
Between, huge enclasping force is generated between outer ring and wheel hub；When bearing load, by the combination pressure and associated generation of expansion set and parts
Frictional force transmit torque, the combined load of axial force or both.
Compared with general Desing of Interference Joint, having key joint, expansion set connection has the advantages that many uniquenesses:
1. keeping host part manufacturing and installation simple using expansion set.The axis of expansion set and the processing in hole are installed unlike interference fit
High-precision manufacturing tolerance is required like that.Expansion set when installing need not heating, cooling or pressurized equipment, need only be by bolt as required
Torque is tightened.And it is easy to adjust, wheel hub can be readily tuned to required position on axis.Expansion set can also be used to join
Tie the part of weldability difference.
2. the long service life of expansion set, intensity is high.Expansion set relies on frictional drive, does not have keyway weakening to part is coupled,
Without relative motion, abrasion will not be generated in work.
3. expansion set in overload, will lose connection effect, it is without damage to can protect equipment.
4. expansion set connection can bear multi-load, structure can be made a variety of styles.According to installation load size, also
It can be used in series with multiple expansion sets.
5. expansion set convenient disassembly, and there is good interchangeability.Since expansion set can combine the propeller boss of larger fit clearance
Get up, when disassembly unscrews bolt, can make to be coupled part and is easy to dismantle.When swelling, contact surface, which fits closely, is not likely to produce rust
Erosion is also convenient for being coupled disassembly.
The realization principle of existing expansion connecting sleeve mainly includes mechanical presses deformation or hydraulic deformation, but is squeezed and deformed
Structure be single-side structural or unsymmetric structure, after being used for a long time or dismantling repeatedly, the position of extrusion deformation is easy
Plastic deformation occurs, it is difficult to maintain stable use state, reliability reduces.Meanwhile unilateral extrusion deformation structure or asymmetric
Structure is squeezed and deformed the offset for being easy to cause assembling process, error occurs in use process, also results in reliability reduction, also holds
Workpiece easy to damage reduces the service life of workpiece.
Accordingly, it is desirable to provide a kind of more reasonable technical solution, solves current technical problem, makes expansion connecting sleeve
Use reliability is higher.
Utility model content
The utility model aim is to provide a kind of anti-bias expansion connecting sleeve, by the way that symmetrical inner ring is arranged, on inner ring
Two outer rings are set and carry out tension extruding, realize swelling connection；Due to being symmetrical structure, pacified using the utility model
Part installation is avoided when load connects error occurs.
The technology employed by the present utility model is
A kind of anti-bias expansion connecting sleeve, including inner ring, the first outer ring and the second outer ring, the first outer ring and the second outer ring difference
It is connected to one end of inner ring.Specifically, the inner ring includes sleeve and be located on sleeve outer swollen, the sleeve it is interior
Portion is cylindrical hole, and mouth is gradually reduced the thickness of sleeve from the middle to both ends；Described outer swollen is greater than set for cylindrical and radius
The radius of cylinder, outer swollen is coaxially disposed and positioned at the centre of sleeve with sleeve, and face is gradually from the middle to both ends for outer swollen radius
Reduce；First outer ring and the second outer ring is cylinder, and is equipped with stepped hole on the first outer ring and the second outer ring, institute
Stating stepped hole includes the first order hole for being socketed sleeve, further includes the second level hole for being socketed outer swollen；Described first
The inner surface in grade hole and second level hole is inclined-plane；Multiple axial directions are equipped on first outer ring, inner ring and the second outer ring
Threaded hole, be equipped in threaded hole for connect the interior six point cylindrical head bolt tensed, interior six point cylindrical head bolt is across first
Outer ring and inner ring simultaneously penetrate on the second outer ring in corresponding threaded hole, and the first outer ring and the second outer ring are tensed and squeezed to centre
Inner ring.
Further, the outer swollen middle part cross section is overlapped with the middle part cross section of sleeve, by outer swollen and sleeve
The inner ring of composition is symmetrical structure.The benefit of symmetrical structure is to occur to squeeze after the first outer ring and the second outer ring are connect with inner ring
The position of compressive strain and the degree of deformation are all the same, facilitate installation part, and part will not be made to generate deflection.
Further, in order to reinforce the intensity and reliability of inner ring, described outer swollen and sleeve are integrally formed.
Further, elastic gap is provided on first outer ring, the second outer ring and inner ring.Elastic gap runs through
First appearance, the side wall surface of the second outer ring and inner ring, effect is to provide certain cooperation surplus during installation, is installed more square
Just.
Further, in order to reinforce the circumferentially positioned of the first outer ring, the second outer ring and inner ring, as a preferred option, institute
The second level hole stated is equipped with orientation block, is correspondingly provided with guide slot on outer swollen lateral wall；Or it is set on the hole wall in first order hole
There is orientation block, is correspondingly provided with guide slot on the lateral wall of sleeve；When first outer ring, the second outer ring are socketed with inner ring respectively, orientation
Block slides into guide slot.
As another preferred scheme, the second level hole is equipped with guide slot, corresponds on outer swollen lateral wall
Equipped with orientation block；Or the hole wall in first order hole is equipped with guide slot, is correspondingly provided with orientation block on the lateral wall of sleeve；Outside first
When circle, the second outer ring are socketed with inner ring respectively, orientation block is slid into guide slot.
Further, mouth is linearly gradually reduced the thickness of the sleeve from the middle to both ends.According to this setting, sleeve
Exterior side surfaces be inclined-plane.
Further, the outer swollen radius is linearly gradually reduced in face from the middle to both ends, and the thickness of sleeve is in
The slope linearly reduced is identical as the slope that outer swollen radius linearly reduces.
It further, is the frictional force for reinforcing workpiece and the first outer ring, the second outer ring, outside first outer ring and second
The roughness value of the exterior side surfaces of circle is Ra1.6~Ra50.
Further, it dismantles for convenience, is provided with removal hole on the end face of first outer ring and the second outer ring,
Removal hole runs through the first outer ring and the second outer ring and just external swollen end face.
The utility model has the following beneficial effects:
The inner ring of symmetrical structure is arranged in the utility model, and the first outer ring and the second outer ring are symmetrically installed on inner ring,
It is tensed and is squeezed from both sides when installation, and synchronous generation deformation, made the workpiece stress equalization of installation, be not likely to produce deviation,
Reliability is higher.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings only shows the section Example of the utility model, therefore does not answer
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the decomposition diagram of the utility model.
Fig. 3 is the positive structure diagram of the utility model.
Fig. 4 is the side structure schematic view of the utility model.
Schematic cross-sectional view when Fig. 5 is the utility model side view.
Fig. 6 is the overall structure diagram of inner ring.
Fig. 7 is the side structure schematic view of inner ring.
Schematic cross-sectional view when Fig. 8 is inner ring side view.
Fig. 9 is the overall structure diagram of the first outer ring.
Figure 10 is the overall structure diagram of the second outer ring.
Figure 11 is the first structural schematic diagram of inner ring in embodiment 2.
Figure 12 is second of structural schematic diagram of inner ring in embodiment 2.
Figure 13 is the third structural schematic diagram of inner ring in embodiment 2.
Figure 14 is the 4th kind of structural schematic diagram of inner ring in embodiment 2.
In figure: the first outer ring 1-；2- inner ring；Swollen outside 201-；202- sleeve；The second outer ring 3-；Hexagonal cylindrical head in 4-
Bolt；5- threaded hole；6- removal hole；7- first order hole；The second level 8- hole；9- elastic gap；10- guide slot；11- orients block.
Specific embodiment
With reference to the accompanying drawing and specific embodiment does further explaination to the utility model.
Embodiment 1:
As shown in Fig. 1~Figure 10, present embodiment discloses a kind of anti-bias expansion connecting sleeves, including inner ring 2, the first outer ring 1
With the second outer ring 3, the first outer ring and the second outer ring are connected to one end of inner ring, and the first outer ring, the second outer ring and inner ring
95 steel are all made of to be made.
Specifically, the inner ring includes sleeve 202 and be located on sleeve outer swollen 201, the inside of the sleeve
For cylindrical hole, mouth is gradually reduced the thickness of sleeve from the middle to both ends；Described outer swollen is greater than sleeve for cylindrical and radius
Radius, outer swollen is coaxially disposed and is located at the centre of sleeve with sleeve, and outer swollen radius gradually subtract in face from the middle to both ends
It is small；First outer ring and the second outer ring is cylinder, and is equipped with stepped hole on the first outer ring and the second outer ring, described
Stepped hole includes the first order hole 7 for being socketed sleeve, further includes the second level hole 8 for being socketed outer swollen；Described first
The inner surface in grade hole and second level hole is inclined-plane；Multiple axial directions are equipped on first outer ring, inner ring and the second outer ring
Threaded hole 5, be equipped in threaded hole for connect the interior six point cylindrical head bolt 4 tensed, interior six point cylindrical head bolt is across the
One outer ring and inner ring simultaneously penetrate on the second outer ring in corresponding threaded hole, and the first outer ring and the second outer ring are tensed and squeezed to centre
Press inner ring.
In the present embodiment, the quantity of interior six point cylindrical head bolt is six, and is arranged according to even circumferential.
The outer swollen middle part cross section is overlapped with the middle part cross section of sleeve, the inner ring being made of outer swollen and sleeve
For symmetrical structure.The benefit of symmetrical structure is the portion that is squeezed and deformed after the first outer ring and the second outer ring are connect with inner ring
The degree of position and deformation is all the same, facilitates installation part, and part will not be made to generate deflection.
In order to reinforce the intensity and reliability of inner ring, described outer swollen and sleeve are integrally formed.
Elastic gap 9 is provided on first outer ring, the second outer ring and inner ring.Elastic gap is outside first
It sees, the side wall surface of the second outer ring and inner ring, effect is to provide certain cooperation surplus during installation, easier for installation.Bullet
Property gap width be the 5%~10% of circular shaft bore radius, in the present embodiment, the radius of circular shaft bore is 16mm, elasticity
The width in gap is 1mm.
Mouth is linearly gradually reduced the thickness of the sleeve from the middle to both ends.According to this setting, the outer side of sleeve
Surface is inclined-plane, and convenient realize after installing the first outer ring and the second outer ring of setting in this way is squeezed and deformed.
The outer swollen radius be linearly gradually reduced in face from the middle to both ends, and the thickness of sleeve linearly reduces
Slope is identical as the slope that outer swollen radius linearly reduces.
For the frictional force for reinforcing workpiece and the first outer ring, the second outer ring, the outside of first outer ring and the second outer ring
The roughness value of side surface is Ra1.6~Ra50, and the roughness value being arranged in the present embodiment is Ra25.
In order to facilitate disassembly, cylindrical removal hole 6 is provided on the end face of first outer ring and the second outer ring,
Removal hole runs through the first outer ring and the second outer ring and just external swollen end face.
Embodiment 2:
Present embodiment discloses a kind of anti-bias expansion connecting sleeve, the place different from embodiment 1 is in the present embodiment:
As shown in Figure 11~Figure 14, in order to reinforce the circumferentially positioned of the first outer ring, the second outer ring and inner ring, in the present embodiment
In, the hole wall in the second level hole is equipped with orientation block, is correspondingly provided with guide slot 10 on outer swollen lateral wall；Or the first order
The hole wall in hole is equipped with orientation block 11, is correspondingly provided with guide slot on the lateral wall of sleeve；First outer ring, the second outer ring respectively with it is interior
When snare connects, orientation block is slid into guide slot.It is rectangular for orienting block
Another scheme also can be used in the present embodiment simultaneously, and the hole wall in the second level hole is equipped with guide slot, outer swollen
Orientation block is correspondingly provided on the lateral wall of platform；Or the hole wall in first order hole is equipped with guide slot, corresponds on the lateral wall of sleeve
Equipped with orientation block；When first outer ring, the second outer ring are socketed with inner ring respectively, orientation block is slid into guide slot.
The structure and connection relationship of other each components of the present embodiment are in the same manner as in Example 1, are not described in more detail here.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products out.Above-mentioned specific embodiment should not be understood the limitation of the pairs of protection scope of the utility model,
The protection scope of the utility model should be subject to be defined in claims, and specification can be used for explaining that right is wanted
Seek book.
Claims (10)
1. a kind of anti-bias expansion connecting sleeve, including inner ring (2), the first outer ring (1) and the second outer ring (3), the first outer ring and second
Outer ring is connected to one end of inner ring；It is characterized by: the inner ring includes sleeve (202) and is located at outer swollen on sleeve
The inside of platform (201), the sleeve is cylindrical hole, and mouth is gradually reduced the thickness of sleeve from the middle to both ends；Described outer swollen
Be greater than the radius of sleeve for cylindrical and radius, outer swollen is coaxially disposed and is located at the centre of sleeve with sleeve, outer swollen partly
Face is gradually reduced diameter from the middle to both ends；First outer ring and the second outer ring is cylinder, and the first outer ring and second
Stepped hole is equipped on outer ring, it further includes outer swollen for being socketed that the stepped hole, which includes the first order hole (7) for being socketed sleeve,
The second level hole (8) of platform；The inner surface in the first order hole and second level hole is inclined-plane；First outer ring, inner ring
Be equipped with multiple axial threaded holes (5) on the second outer ring, the interior hexagonal cylindrical head for connect tension is equipped in threaded hole
Bolt (4), interior six point cylindrical head bolt pass through the first outer ring and inner ring and penetrate on the second outer ring in corresponding threaded hole, by the
One outer ring and the second outer ring tense to centre and squeeze inner ring.
2. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: the outer swollen middle part cross section
It is overlapped with the middle part cross section of sleeve, inner ring is symmetrical structure.
3. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: described outer swollen and sleeve one
Molding.
4. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: first outer ring, outside second
Elastic gap (9) are provided on circle and inner ring.
5. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: on the hole wall in the second level hole
Equipped with orientation block (11), guide slot (10) are correspondingly provided on outer swollen lateral wall；Or the hole wall in first order hole is equipped with orientation
Block is correspondingly provided with guide slot on the lateral wall of sleeve；When first outer ring, the second outer ring are socketed with inner ring respectively, orientation block is slid into
In guide slot.
6. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: on the hole wall in the second level hole
Equipped with guide slot, orientation block is correspondingly provided on outer swollen lateral wall；Or the hole wall in first order hole is equipped with guide slot, sleeve
Orientation block is correspondingly provided on lateral wall；When first outer ring, the second outer ring are socketed with inner ring respectively, orientation block is slid into guide slot.
7. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: the thickness of the sleeve from centre to
Two-port is linearly gradually reduced.
8. a kind of anti-bias expansion connecting sleeve according to claim 7, it is characterised in that: the outer swollen radius is from centre
It is linearly gradually reduced to both ends of the surface, and the slope that linearly reduces of the thickness of sleeve and outer swollen radius linearly reduce
Slope is identical.
9. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: outside first outer ring and second
The roughness value of the exterior side surfaces of circle is Ra1.6~Ra50.
10. a kind of anti-bias expansion connecting sleeve according to claim 1, it is characterised in that: first outer ring and second
It is provided on the end face of outer ring removal hole (6), removal hole runs through the first outer ring and the second outer ring and just external swollen end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820909394.6U CN208331019U (en) | 2018-06-12 | 2018-06-12 | A kind of anti-bias expansion connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820909394.6U CN208331019U (en) | 2018-06-12 | 2018-06-12 | A kind of anti-bias expansion connecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331019U true CN208331019U (en) | 2019-01-04 |
Family
ID=64770279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820909394.6U Active CN208331019U (en) | 2018-06-12 | 2018-06-12 | A kind of anti-bias expansion connecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237351A (en) * | 2020-03-19 | 2020-06-05 | 山东大学 | Keyless coupling capable of positioning light load transmission and shaft hole transmission structure |
| CN111392356A (en) * | 2020-03-30 | 2020-07-10 | 唯实先端智能科技(苏州)有限公司 | Connecting structure of conveyer |
-
2018
- 2018-06-12 CN CN201820909394.6U patent/CN208331019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237351A (en) * | 2020-03-19 | 2020-06-05 | 山东大学 | Keyless coupling capable of positioning light load transmission and shaft hole transmission structure |
| CN111392356A (en) * | 2020-03-30 | 2020-07-10 | 唯实先端智能科技(苏州)有限公司 | Connecting structure of conveyer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230830 Address after: 611630 No. 118, Xinyuan 2nd Road, shou'an street, Pujiang County, Chengdu, Sichuan Patentee after: Chengdu chaodechuang Technology Co.,Ltd. Address before: No. 99, south section of Rongtai Avenue, Chengdu cross strait science and Technology Industrial Development Park, Wenjiang District, Chengdu, Sichuan 610000 Patentee before: CHENGDU CDC MECHANICAL & ELECTRICAL EQUIPMENT CO.,LTD. |
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| TR01 | Transfer of patent right |