CN114508549A - Bearing adapter sleeve of double-deck nested formula - Google Patents
Bearing adapter sleeve of double-deck nested formula Download PDFInfo
- Publication number
- CN114508549A CN114508549A CN202210135895.4A CN202210135895A CN114508549A CN 114508549 A CN114508549 A CN 114508549A CN 202210135895 A CN202210135895 A CN 202210135895A CN 114508549 A CN114508549 A CN 114508549A
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- Prior art keywords
- sleeve
- adapter sleeve
- fastening
- bearing
- double
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a double-layer nested bearing adapter sleeve, which relates to the technical field of bearing adapter sleeves and comprises an inner adapter sleeve, an outer adapter sleeve and a fixed sleeve; the fastening inner sleeve is sleeved on the shaft, and the outer wall of the fastening inner sleeve is conical and is provided with an external thread; the inner wall of the fastening outer sleeve is provided with internal threads, and the bearing is arranged on the fastening outer sleeve; the small-diameter end part of the fastening inner sleeve is provided with at least one end part bayonet, the fixing sleeve can be sleeved on the shaft and comprises an inner ring fixture block and an outer ring stop block, the inner ring fixture block can be clamped with the end part bayonet in a matching way, the outer ring stop block can be abutted against the bearing, the fastening inner sleeve and the fastening outer sleeve can be screwed by rotating the fixing sleeve, so that the fastening inner sleeve and the fastening outer sleeve are fixed on the shaft, and the bearing is fixed on the fastening outer sleeve; the structure of the adapter sleeve is effectively simplified, the fixing effect is improved, extra measurement work is not needed in the installation process through the arrangement of the annular baffle of the positioning piece, and the installation precision can be well guaranteed.
Description
Technical Field
The invention relates to the technical field of bearing adapter sleeves, in particular to a double-layer nested bearing adapter sleeve.
Background
In the existing mechanical structure, a taper sleeve bearing is widely applied due to the unique structure, the taper sleeve bearing comprises a bearing and a fastening sleeve, and the taper sleeve bearing is used in a group, wherein an inner hole of the bearing is designed into a taper hole, the fastening sleeve is arranged in the taper hole to realize the static matching state of a shaft and the bearing, and the fastening sleeve is the most commonly used part when the bearing with the taper hole is positioned on a cylindrical shaft, and the taper sleeve can be used for an optical axis or a stepped shaft; the adapter sleeve is used for installing the rotating shaft in a positioning mode on a tool fitting inside the bearing, and the shaft and the bearing can be tightly matched and conveniently detached through the adapter sleeve. The existing locking sleeve is limited by a clamping groove of a nut on the locking sleeve through a clamping piece in the using process, the whole device is complex in structure and large in size, the position is not easy to assemble if the space is compact, meanwhile, the existing fixing structure is only locked and fixed through one end, the situation that the nut is excessively locked in order to fix the locking sleeve is easy to occur, and local looseness and abrasion of a shaft are easily caused.
The quick detachable adapter sleeve disclosed in the Chinese invention patent CN106944972A comprises an adapter sleeve, an adapter sleeve and slots, wherein a narrow groove is formed in one side of the adapter sleeve, a wide groove is formed below the narrow groove and is communicated with the narrow groove, the adapter sleeve is in threaded connection with one side of the adapter sleeve close to the bottom end, notches are formed in the outer wall of the adapter sleeve, four groups of notches are formed in the four groups of notches, the four groups of notches are circularly and uniformly distributed on the outer side of the adapter sleeve, a bolt hole is formed in one side of the adapter sleeve, a fastening screw is in threaded connection with the center of the bolt hole, a protective gasket is welded on one side of the fastening screw, and the slots are formed in the outer wall of the adapter sleeve; the adapter sleeve of the invention can not solve the problem of large assembly space and also has the problem of local over-locking.
Disclosure of Invention
First, technical problem to be solved
The invention aims at the defects in the prior art, and particularly provides a double-layer nested bearing adapter sleeve, which solves the problems that the existing adapter sleeve device is complex in structure, large in size and not easy to assemble, and also solves the problem that a shaft is abraded due to local locking and fixing.
Second, technical scheme
In order to solve the technical problem, the invention provides a double-layer nested bearing fastening sleeve which comprises a fastening inner sleeve, a fastening outer sleeve and a fixing sleeve;
the fastening inner sleeve is sleeved on the shaft, and the outer wall of the fastening inner sleeve is conical and is provided with an external thread;
the inner wall of the fastening outer sleeve is provided with internal threads, the fastening inner sleeve is sleeved with the fastening outer sleeve through threads, the outer wall of the fastening outer sleeve is conical, and the bearing is arranged on the fastening outer sleeve;
the small-diameter end part of the fastening inner sleeve is provided with at least one end part bayonet, the fixing sleeve can be sleeved on the shaft and comprises an inner ring fixture block and an outer ring stop dog, the inner ring fixture block can be clamped with the end part bayonet in a matching mode, the outer ring stop dog can be abutted against the bearing, the fastening inner sleeve can be screwed with the fastening outer sleeve through rotating the fixing sleeve, and therefore the fastening inner sleeve and the fastening outer sleeve are fixed on the shaft and the bearing is fixed on the fastening outer sleeve.
Wherein, the thick diameter end part of the fastening inner sleeve is also provided with a positioning piece which can be abutted against the end part of the fastening outer sleeve.
Wherein, the setting element is the annular baffle, when the tip butt of setting element and tight overcoat for tight endotheca and axle realize fixing.
Wherein, the quantity of tip bayonet socket is 3, and the equipartition is in the thin footpath tip of tight endotheca.
Wherein, the fixed sleeve can be detached from the shaft after fixing the fastening inner sleeve, the fastening outer sleeve and the bearing.
Wherein, still be equipped with at least a locking screw on the outer loop dog outer wall, fix fixed cover and tight overcoat locking through the locking screw.
Wherein, locking screw quantity is 3, and the equipartition is on outer ring dog outer wall.
Wherein, an axial slot is arranged on the fastening inner sleeve.
Third, beneficial effect
Compared with the prior art, the double-layer nested bearing adapter sleeve has the advantages that the structure of the adapter sleeve is effectively simplified and the fixing effect is improved through the arrangement of the adapter sleeve and the adapter sleeve, particularly, the adapter sleeve and the adapter sleeve move oppositely, and meanwhile, the bearing and the adapter sleeve can be fixed, so that the installation of the bearing is synchronously completed, the installation is simple and convenient, the efficiency is high, and the situation that an end nut is excessively locked for fixing the adapter sleeve on a shaft is easily caused in the adapter sleeve structure compared with the existing fixing structure that only one end is locked and fixed is effectively solved, the fixing effect is better, and meanwhile, the problems that the existing adapter sleeve device is complex in structure, large in size and difficult to assemble are solved;
furthermore, due to the arrangement of the annular baffle of the positioning piece, extra measurement work is not needed in the installation process, the installation precision can be well ensured, and the installation efficiency is improved;
the fixing sleeve can be used as a mounting tool and also can be used as an auxiliary fixing device, and the position of the fixing sleeve is fixed through the locking screw after the bearing adapter sleeve structure is mounted, so that the fixation of the bearing and the fixation of the whole bearing adapter sleeve structure are enhanced.
Drawings
Fig. 1 is an exploded view of embodiment 1 of the present invention;
FIG. 2 is an exploded view of embodiment 3 of the present invention;
FIG. 3 is a perspective view of the present invention without a retaining sleeve;
FIG. 4 is a perspective view of embodiment 3 of the present invention;
FIG. 5 is a perspective view of a locking inner sleeve of the present invention;
in the figure: 1 is a fastening inner sleeve; 2, a fastening outer sleeve; 3 is a fixed sleeve; 4 is a bearing; 5 is a shaft; 12 is an axial slot; 13 is an end bayonet; 14 is a positioning piece; 31 is an inner ring fixture block; 32 is an outer ring stop block; and 33, a locking screw.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, 3 and 5, the double-layer nested bearing adapter sleeve of the present embodiment includes an inner adapter sleeve 1, an outer adapter sleeve 2 and a fixed sleeve 3;
specifically, the fastening inner sleeve 1 is sleeved on the shaft 5, and the outer wall of the fastening inner sleeve 1 is conical and is provided with an external thread; the inner wall of the fastening outer sleeve 2 is provided with internal threads, the inner wall and the outer wall of the fastening outer sleeve 2 are both conical, the outer wall of the fastening inner sleeve 1 is matched with the inner wall of the fastening outer sleeve 2 and can be sleeved through threads, an axial slot 12 is formed in the fastening inner sleeve 1, the fastening inner sleeve 1 is extruded and generates certain deformation and tightly holds the shaft 5 in the process of screwing and sleeving the threads, so that the fastening inner sleeve is fixed on the shaft 5, the width of the axial slot 12 can be reduced in the process, and the bearing 4 is arranged on the fastening outer sleeve 2 to realize the effect of a bearing fastening sleeve;
the specific mounting structure is as follows: at least one end bayonet 13 is arranged at the small diameter end of the fastening inner sleeve 1, the number of the end bayonets 13 is 3 in the embodiment, the end bayonets are uniformly distributed at the small diameter end of the fastening inner sleeve 1, the fixing sleeve 3 can be sleeved on the shaft 5, the fixing sleeve 3 comprises an inner ring fixture block 31 and an outer ring fixture block 32, the inner ring fixture block 31 can be matched and clamped with the end bayonet 13, the width of the inner ring fixture block 31 is slightly smaller than that of the end bayonet 13, the outer ring fixture block 32 can be abutted against the bearing 4, the fastening inner sleeve 1 and the fastening outer sleeve 2 can be screwed by rotating the fixing sleeve 3 by hand or a wrench or an electric tool, and the like, so that the fastening inner sleeve 1 and the fastening outer sleeve 2 are fixed on the shaft 5, the bearing 4 is fixed on the fastening outer sleeve 2, the fastening inner sleeve 1 and the fastening outer sleeve 2 move oppositely in the process of screwing the fastening inner sleeve 1, the bearing 4 and the fastening outer sleeve 2 can be fixed, and the installation of the bearing 4 is completed synchronously, the installation is got up simple and conveniently, and is efficient to through tightly deciding overcoat 2 to the locking of tightly deciding 1 full section of endotheca, compare in current fixed knot structure all only one end and lock fixedly, effectively solved and appeared in the tight fit structure easily in order to overlap epaxial and fixed and the condition of excessive lock end nut tightly decide, fixed effect is better.
And can dismantle from the axle 5 at fixed cover 3 after will tightly decide endotheca 1, tightly decide overcoat 2, and bearing 4 is fixed, therefore whole structure is after the installation, only need tightly decide endotheca 1, tightly decide overcoat 2, and bearing 4's structure can, according to bearing 4's width, set up tightly decide endotheca 1, tightly decide the width of overcoat 2, can realize just fixing the bearing on the optical axis under the condition that tightly decide endotheca 1, tightly decide overcoat 2's width slightly is greater than the bearing width, required installation space reduces greatly, can be fine solution current tightly decide set device structure complicacy, the big problem of being difficult to the assembly of volume.
Example 2:
compared with embodiment 1, in this embodiment, the positioning element 14 is further disposed at the end portion of the inner fastening sleeve 1 with the larger diameter, and the positioning element 14 can abut against the end portion of the outer fastening sleeve 2.
Specifically, the positioning piece 14 is an annular baffle, when the positioning piece 14 is abutted against the end part of the fastening outer sleeve 2, the fastening inner sleeve 1 and the shaft 5 are fixed, extra measurement work is not needed in the installation process, the installation precision can be well guaranteed, and the installation efficiency is improved;
according to different shaft diameters, different positions of the annular baffle can be arranged, or a gasket with a certain thickness is added, so that the accuracy and reliability of installation are guaranteed.
Example 3:
compared with the embodiment 1, as shown in fig. 2 and 4, in this embodiment, at least one locking screw 33 is further disposed on the outer wall of the outer ring stopper 32, and the fixing sleeve 3 and the locking outer sleeve 2 are locked and fixed by the locking screw 33.
Particularly, locking screw 33 quantity is 3, and the equipartition is on outer loop dog 32 outer wall, and fixed cover 3 can regard as a mounting tool, also can regard as an auxiliary fixed device, and after bearing adapter sleeve structure installation was accomplished, fix fixed cover 3 position through locking screw 33 to strengthen the fixed of bearing 4 and the fixed of whole bearing adapter sleeve structure.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (8)
1. A double-layer nested bearing adapter sleeve is characterized in that the double-layer nested bearing adapter sleeve comprises an inner adapter sleeve (1), an outer adapter sleeve (2) and a fixed sleeve (3);
the fastening inner sleeve (1) is sleeved on the shaft (5), and the outer wall of the fastening inner sleeve (1) is conical and is provided with an external thread;
the inner wall of the fastening outer sleeve (2) is provided with internal threads, the fastening inner sleeve (1) is sleeved with the fastening outer sleeve (2) through the threads, the outer wall of the fastening outer sleeve (2) is conical, and a bearing (4) is arranged on the fastening outer sleeve (2);
the thin footpath tip of tightly deciding endotheca (1) is equipped with an at least tip bayonet socket (13), but fixed cover (3) cover is established on axle (5), fixed cover (3) include inner ring fixture block (31) and outer loop dog (32), inner ring fixture block (31) can with tip bayonet socket (13) cooperation joint, outer loop dog (32) can with bearing (4) butt, through rotatory fixed cover (3) can make tightly decide endotheca (1) and tightly decide overcoat (2) screw to fix tightly deciding endotheca (1) and tightly deciding overcoat (2) on axle (5) to make bearing (4) fix on tightly deciding overcoat (2).
2. The double-layer nested bearing adapter sleeve according to claim 1, characterized in that the end with the large diameter of the adapter sleeve (1) is further provided with a positioning piece (14), and the positioning piece (14) can be abutted with the end of the adapter sleeve (2).
3. A double nested bearing adapter sleeve according to claim 2, characterized in that the positioning element (14) is an annular baffle, which fixes the inner adapter sleeve (1) to the shaft (5) when the positioning element (14) abuts against the end of the outer adapter sleeve (2).
4. A double nested bearing adapter sleeve according to claim 1, characterized in that the number of the end bayonets (13) is 3, and they are uniformly distributed at the small diameter end of the adapter sleeve (1).
5. A double nested bearing adapter sleeve according to claim 1, characterized in that the said sleeve (3) is detachable from the shaft (5) after fixing the inner adapter sleeve (1), the outer adapter sleeve (2) and the bearing (4).
6. The double-layer nested bearing adapter sleeve according to claim 1, characterized in that the outer wall of the outer ring stopper (32) is further provided with at least one locking screw (33), and the fixing sleeve (3) and the adapter sleeve (2) are locked and fixed through the locking screw (33).
7. The double-layer nested bearing adapter sleeve according to claim 6, characterized in that the number of the locking screws (33) is 3, and the locking screws are uniformly distributed on the outer wall of the outer ring stopper (32).
8. A double nested bearing adapter sleeve according to claim 1, characterized in that the inner adapter sleeve (1) is provided with an axial slot (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135895.4A CN114508549B (en) | 2022-02-15 | 2022-02-15 | Double-layer nested bearing adapter sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135895.4A CN114508549B (en) | 2022-02-15 | 2022-02-15 | Double-layer nested bearing adapter sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114508549A true CN114508549A (en) | 2022-05-17 |
| CN114508549B CN114508549B (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210135895.4A Active CN114508549B (en) | 2022-02-15 | 2022-02-15 | Double-layer nested bearing adapter sleeve |
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| Country | Link |
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| CN (1) | CN114508549B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118088582A (en) * | 2024-04-12 | 2024-05-28 | 浙江得利亚自动化制造有限公司 | Ball bearing assembly and ball |
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| CN213409843U (en) * | 2020-08-18 | 2021-06-11 | 辛集市澳森钢铁有限公司 | Split type loose wheel |
| CN214617560U (en) * | 2021-05-12 | 2021-11-05 | 宁波斯立福精密工业有限公司 | Novel bearing adapter sleeve |
| CN214788645U (en) * | 2021-05-18 | 2021-11-19 | 宁波斯立福精密工业有限公司 | Combined bearing adapter sleeve |
| US20210372468A1 (en) * | 2018-10-31 | 2021-12-02 | Schaeffler Technologies AG & Co. KG | Pre-tensioned rolling element mounting |
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2022
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| DE3215618A1 (en) * | 1982-04-27 | 1983-10-27 | Ralph 4048 Grevenbroich Müllenberg | Taper clamping arrangement with auxiliary ring |
| EP0318977A1 (en) * | 1987-12-01 | 1989-06-07 | VMA-NC Mess- und Antriebstechnik GmbH | Tightening device |
| EP1674746A2 (en) * | 2004-12-23 | 2006-06-28 | Ab Skf | Bearing arrangement |
| US20080085072A1 (en) * | 2006-10-10 | 2008-04-10 | Fyh Bearing Units Usa, Inc. | Taper bore bearing assembly |
| TWM323535U (en) * | 2007-07-18 | 2007-12-11 | William Chen | Fastening sheath for securing of bearing |
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| CN118088582A (en) * | 2024-04-12 | 2024-05-28 | 浙江得利亚自动化制造有限公司 | Ball bearing assembly and ball |
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| Publication number | Publication date |
|---|---|
| CN114508549B (en) | 2023-07-11 |
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