CN204572821U - A kind of hole axle swelling connection set - Google Patents
A kind of hole axle swelling connection set Download PDFInfo
- Publication number
- CN204572821U CN204572821U CN201520124120.2U CN201520124120U CN204572821U CN 204572821 U CN204572821 U CN 204572821U CN 201520124120 U CN201520124120 U CN 201520124120U CN 204572821 U CN204572821 U CN 204572821U
- Authority
- CN
- China
- Prior art keywords
- hole
- axle
- expansion sleeve
- groove
- swelling
- 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
Links
- 230000008961 swelling Effects 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
- F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses a kind of axis hole swelling connection set, it is made up of expansion sleeve, hole, axle and back-up ring.The axial cross section of described expansion sleeve is flexuose, is arranged between the axle of Spielpassung and hole.The internal surface in hole and the outer surface radial equipartition of axle have the groove of certain depth.By press-fiting sleeve, expansion sleeve being compressed at axial direction, deforming, fill up the gap between hole and axle between axle and hole, produce tension force, the groove structure contact segment of expansion sleeve and hole and axle produces plastic deformation, and material imbeds in the groove of hole and axle.Adopt the utility model not need to process keyway on axle and hole, the tangential force that the frictional force relying on swelling to produce and distensible ring plastic deformation produce carrys out transmitting torque.Require low to the fit tolerance in axle and hole, after connecting, bearing capacity is strong, and centering is good, hole and the unstressed concentration phenomenon of axle.Structure is simple, realizes easily, is especially applicable on the hole axle cooperating structure of batch equivalent life design.
Description
Technical field
The utility model relates to a kind of without key connection set, especially a kind of swelling connection set.
Background technique
It is a kind of Novel transmission Placement that swelling connects, and is widely used in machinery industry.Use expansion sleeve connects, and does not need to process keyway on axle and hole, reduces the accuracy of manufacturing requirement to axis hole part, without the need to equipment such as heating, coolings during installation, installs simple.General expansion sleeve relies on friction driving, and do not have keyway to weaken to connected piece, can not produce wearing and tearing in work, during overload, expansion sleeve can lose connection function, and proterctive equipment is not damaged.Swelling connects can bear multi-load, and structural type is various.Due to above-mentioned advantage, swelling connects and just progressively replaces traditional keyway connection.
Use in expansion sleeve connection procedure and find the place that two point values must improve.First, common expansion sleeve is placed between axle and hole, connected by the hold-down bolt of some circumference, this requires that hole and the diameter difference of axle in cooperation place are at least greater than the twice of hold-down bolt diameter, adopts the swelling connecting means of hold-down bolt inapplicable with size all smaller coordinate of axle with hole; Second, common expansion sleeve only relies on the expansion sleeve radial direction frictional force produced that swells that hole, expansion sleeve and axle are fastened as a whole transmitting torque mutually, find in actual use: even if improve pretightening force so that the bolt thread plastic deformation of hold-down bolt, the moment of torsion of transmission does not still obviously promote.This makes expansion sleeve be restricted in small-sized connection and the application improving moment of torsion.Therefore, be necessary that improving swelling connects, and meets small size swelling connection request, improves join strength simultaneously, increase bearing torque.
Summary of the invention
For can make swelling connection set can be used for hole shaft size difference less time connection occasion, increase the bearing torque that swelling connects simultaneously, the utility model proposes a kind of hole axle swelling connection set.
The technical solution of the utility model is: a kind of hole axle swelling connection set, expansion sleeve axial cross section is flexuose, is arranged on and has between the axle in gap and hole.The outer surface radial equipartition of the internal surface in hole and the attachment portion of axle has the groove of certain depth.By press-fiting sleeve, expansion sleeve is compressed at axial direction, deform between axle and hole, fill up the gap between hole and axle, the attachment portion of hole and axle produces radial tension force, force the groove structure contact segment of expansion sleeve and hole and axle to produce plastic deformation, material is imbedded in the groove of hole and axle.
Adopt technological scheme as above, the utility model has following beneficial effect.
1, expansion sleeve radial dimension is little, can be used on hole and differs in less cooperation with axle fit dimension.
2, expansion sleeve press-fits after in the gap of inlet hole and axle, and expansion sleeve portion of material embeds in groove, and the groove contact segment generation plastic deformation with hole and axle, can improve the bearing torque that swelling connects.
3, when transmission overloads, distensible ring can first be destroyed, and plays a protective role to axle and hole.
Accompanying drawing explanation
The structural drawing (coordinating with axle swelling for gear) of a kind of hole of Fig. 1 axle swelling connection set.
Fig. 2 back-up ring partial view.
The axle swelling connection of a kind of hole of Fig. 3 press-fits process structure diagram.
Fig. 4 press-fits process and installs collar and press-fit sleeve partial view.
Fig. 5 axle upper groove topology view.
Fig. 6 axle sectional view and groove structure partial view.
Fig. 7 gear view.
Fig. 8 gear inner surface recesses structure partial view.
Wherein, 1-axle; 2a-back-up ring 1; 2b-back-up ring 2; 3-gear; 4-expansion sleeve; 5-collar; 6-press-fits sleeve.
Embodiment
Be described in further detail the utility model below in conjunction with drawings and Examples, but the utility model is not limited only to described embodiment.
Described swelling connection set, illustrates embodiment of the present utility model with the engagement process of a gear and axle: as shown in Figure 3, is enclosed within by collar 5 on axle 1, and the right side of collar 5 is concordant with the right flank of groove axle 1 being installed circlip I 2a.Be enclosed within axle 1 by expansion sleeve 4 from opposite side, expansion sleeve 4 left side is against the right side of collar 5.Be enclosed within by gear 3 on expansion sleeve 4, the left side of gear 3 is against the right side of collar 5.Then will press-fit sleeve 6 right-to-left is enclosed within axle 1, the right side press-fiting sleeve 6 exerts a force, expansion sleeve 4 is squeezed into vertically in the hole of gear 3 and the gap of axle 1, expansion sleeve 4 is axially compressed, radial deformation fills up the gap of hole between centers, produce tension force, expansion sleeve 4 produces plastic deformation with the groove structure contact segment of the endoporus of gear 3 and the outer surface of axle 1, and portion of material imbeds in the groove of hole and axle.After installation, remove and collar 5 be installed and press-fit sleeve 6, axle cog both sides groove in circlip I 2a and circlip II 2b is installed as axial restraint, as shown in Figure 1.
Claims (2)
1. a hole axle swelling connection set, is characterized in that: described device is primarily of expansion sleeve, hole, axle and back-up ring composition, and installation process needs collar and press-fits sleeve; Wherein, described expansion sleeve is sleeved between axle and hole, and axial cross section is flexuose, can be compressed at axial direction; The internal surface in described hole is evenly equipped with the groove of certain depth, and the outer surface of described axle and attachment portion, hole are evenly equipped with the groove of certain depth; Described installation collar coordinates with shaft clearance, and race diameter is greater than aperture, is fixed on fixture and completes axial positioning function; Described press-fits sleeve working length portion diameter between all external diameters and hole internal diameter, press-fits the length of thread engagement that length sleeve is greater than hole.
2. a kind of hole axle swelling connection set according to claim 1, is characterized in that: described swelling connects orifice both sides back-up ring, and back-up ring outside diameter is greater than orifice diameter of bore, and back-up ring is arranged in the groove on axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124120.2U CN204572821U (en) | 2015-03-04 | 2015-03-04 | A kind of hole axle swelling connection set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124120.2U CN204572821U (en) | 2015-03-04 | 2015-03-04 | A kind of hole axle swelling connection set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572821U true CN204572821U (en) | 2015-08-19 |
Family
ID=53865463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520124120.2U Expired - Fee Related CN204572821U (en) | 2015-03-04 | 2015-03-04 | A kind of hole axle swelling connection set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696377A (en) * | 2015-03-04 | 2015-06-10 | 四川大学 | Axle hole expanding connection device |
| CN117102907A (en) * | 2023-10-24 | 2023-11-24 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
-
2015
- 2015-03-04 CN CN201520124120.2U patent/CN204572821U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696377A (en) * | 2015-03-04 | 2015-06-10 | 四川大学 | Axle hole expanding connection device |
| CN117102907A (en) * | 2023-10-24 | 2023-11-24 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
| CN117102907B (en) * | 2023-10-24 | 2024-01-16 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |