CN114508549B - Double-layer nested bearing adapter sleeve - Google Patents
Double-layer nested bearing adapter sleeve Download PDFInfo
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- CN114508549B CN114508549B CN202210135895.4A CN202210135895A CN114508549B CN 114508549 B CN114508549 B CN 114508549B CN 202210135895 A CN202210135895 A CN 202210135895A CN 114508549 B CN114508549 B CN 114508549B
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- sleeve
- fastening
- tight
- fixing
- bearing
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- 238000009434 installation Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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 fastening sleeve, which relates to the technical field of bearing fastening sleeves and comprises a fastening inner sleeve, a fastening outer sleeve and a fixing sleeve; the outer wall of the tight fixing inner sleeve is conical and is provided with an external thread; the inner wall of the tight-fixing jacket is provided with an internal thread, and the bearing is arranged on the tight-fixing jacket; the small-diameter end part of the fastening inner sleeve is provided with at least one end bayonet, the fixing sleeve can be sleeved on the shaft, the fixing sleeve comprises an inner ring clamping block and an outer ring stop block, the inner ring clamping block can be clamped with the end bayonet in a matching way, the outer ring stop block can be abutted with the bearing, the fastening inner sleeve and the fastening outer sleeve can be screwed tightly through 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 invention effectively simplifies the structure of the tight sleeve and improves the fixing effect, and the installation process does not need to carry out extra measurement work by arranging the annular baffle of the positioning piece, so that the installation precision can be well ensured.
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, the taper sleeve bearing is widely applied due to the unique structure, the taper sleeve bearing comprises a bearing and a fastening sleeve, and is used in groups, 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 fit state of the 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, because the shaft sleeve can be used for an optical axis or a stepped shaft; the adapter sleeve is used for positioning and installing the rotating shaft in the tool fitting inside the bearing, and the shaft and the bearing can be tightly matched through the adapter sleeve and are convenient to detach. In the use of the existing fastening sleeve, the clamping groove of the nut on the fastening sleeve is required to be limited through a clamping piece, the whole device is complex in structure and large in size, if some positions with compact space are not easy to assemble, meanwhile, the existing fixing structure is only locked and fixed at one end, the situation that the end nut is excessively locked for fixing the fastening sleeve easily occurs, and local looseness and abrasion of a shaft are easily caused.
The invention discloses a quick detachable fastening sleeve disclosed in Chinese patent No. 106944972A, which comprises a fastening inner bushing, a fastening sleeve and a slot, wherein a narrow-mouth groove is formed in one side of the fastening inner bushing, a wide-mouth groove is formed below the narrow-mouth groove and is communicated with the narrow-mouth groove, the fastening sleeve is connected with one side of the fastening inner bushing close to the bottom end in a threaded manner, the outer surface wall of the fastening sleeve is provided with notches, four groups of notches are uniformly distributed on the outer side of the fastening sleeve in a circular manner, one side of the fastening sleeve is provided with a bolt hole, a fastening screw is connected with the center of the bolt hole in a threaded manner, a protection gasket is welded on one side of the fastening screw, and the outer surface wall of the fastening inner bushing is provided with the slot; the tight sleeve of the invention can not solve the problem of large assembly space, and simultaneously has the problem of local excessive locking.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the defects in the prior art, the invention 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 difficult to assemble, and simultaneously solves the problem of shaft abrasion caused by local locking and fixing.
2. Technical proposal
In order to solve the technical problems, 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 outer wall of the tight fixing inner sleeve is conical and is provided with an external thread;
the inner wall of the tight fixing outer sleeve is provided with an internal thread, the tight fixing inner sleeve is sleeved with the tight fixing outer sleeve through threads, the outer wall of the tight fixing outer sleeve is conical, and the bearing is arranged on the tight fixing outer sleeve;
the small diameter end of the fastening inner sleeve is provided with at least one end bayonet, the fixing sleeve can be sleeved on the shaft, the fixing sleeve comprises an inner ring clamping block and an outer ring clamping block, the inner ring clamping block can be clamped with the end bayonet, the outer ring clamping block can be abutted with the bearing, the fastening inner sleeve and the fastening outer sleeve can be screwed tightly through 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.
Wherein, the end part of the inner sleeve with the thick diameter is also provided with a positioning piece which can be abutted with the end part of the outer sleeve.
The positioning piece is an annular baffle, and when the positioning piece is abutted with the end part of the tight positioning outer sleeve, the tight positioning inner sleeve and the shaft are fixed.
The number of the end bayonets is 3, and the end bayonets are uniformly distributed on the small-diameter end part of the tightly fixed inner sleeve.
The fixing sleeve can be detached from the shaft after fixing the fastening inner sleeve, the fastening outer sleeve and the bearing.
And the outer wall of the outer ring stop block is also provided with at least one locking screw, and the fixing sleeve and the fastening sleeve are locked and fixed through the locking screw.
The number of the locking screws is 3, and the locking screws are uniformly distributed on the outer wall of the outer ring stop block.
Wherein, an axial slot is arranged on the fastening inner sleeve.
3. Advantageous effects
Compared with the prior art, the double-layer nested bearing fastening sleeve has the advantages that the fastening sleeve and the fastening outer sleeve are arranged, the structure of the fastening sleeve is effectively simplified, the fixing effect is improved, particularly, the fastening inner sleeve and the fastening outer sleeve move oppositely, meanwhile, the bearing and the fastening outer sleeve can be fixed, the installation of the bearing is synchronously completed, the installation is simple and convenient, the efficiency is high, and compared with the existing fixing structure, the fastening outer sleeve is used for locking and fixing the whole section of the fastening inner sleeve, the problem that an end nut is excessively locked for fixing the fastening sleeve on a shaft is effectively solved, the fixing effect is better, and meanwhile, the problems that the existing fastening sleeve device is complex in structure and large in size and difficult to assemble are well solved;
further, due to the arrangement of the annular baffle of the positioning piece, no additional measurement work is 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 an installation tool and also can be used as an auxiliary fixing device, and after the bearing fastening sleeve structure is installed, the fixing sleeve is fixed in position through the locking screw, so that the fixing of the bearing and the fixing of the whole bearing fastening 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 the retaining sleeve;
fig. 4 is a perspective view of embodiment 3 of the present invention;
FIG. 5 is a perspective view of the tight fitting inner sleeve of the present invention;
in the figure: 1 is a tight inner sleeve; 2 is a tight jacket; 3 is a fixed sleeve; 4 is a bearing; 5 is an axis; 12 is an axial slot; 13 is an end bayonet; 14 is a positioning piece; 31 is an inner ring clamping block; 32 is an outer ring stop; 33 is a locking screw.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, 3 and 5, a double-layer nested bearing fastening sleeve of the present embodiment includes a fastening inner sleeve 1, a fastening outer sleeve 2 and a fixing sleeve 3;
specifically, the fastening inner sleeve 1 is sleeved on the shaft 5, the outer wall of the fastening inner sleeve 1 is conical, and external threads are arranged; 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 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 by threads, an axial slot 12 is formed in the fastening inner sleeve 1, the fastening inner sleeve 1 is extruded and deforms to a certain extent and 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 slot width of the axial slot 12 is reduced in the process, the bearing 4 is arranged on the fastening outer sleeve 2, and the effect of the bearing fastening sleeve is realized;
the structure for mounting is as follows: the small diameter end of the tight inner sleeve 1 is provided with at least one end bayonet 13, in this embodiment, the number of the end bayonet 13 is 3, the small diameter end of the tight inner sleeve 1 is uniformly distributed, the fixed sleeve 3 can be sleeved on the shaft 5, the fixed sleeve 3 comprises an inner ring clamping block 31 and an outer ring stop 32, the inner ring clamping block 31 can be matched and clamped with the end bayonet 13, the width of the inner ring clamping block 31 is slightly smaller than that of the end bayonet 13, the outer ring stop 32 can be abutted with the bearing 4, the tight inner sleeve 1 and the tight outer sleeve 2 can be screwed tightly by rotating the fixed sleeve 3 manually or by a spanner or an electric tool, so that the tight inner sleeve 1 and the tight outer sleeve 2 are fixed on the shaft 5, the bearing 4 is fixed on the tight outer sleeve 2, the tight inner sleeve 1 and the tight outer sleeve 2 move in opposite directions in the process of screwing the tight inner sleeve 1, meanwhile, the bearing 4 and the tight outer sleeve 2 can be synchronously mounted, the installation is simple and convenient, the efficiency is high, and the tight outer sleeve 2 can be tightly locked on the whole section of the tight inner sleeve 1 by rotating the fixed sleeve 2, compared with the existing fixed structure, the tight inner sleeve is fixed on the shaft, and the tight inner sleeve is only fixed on one end of the tight sleeve, the tight inner sleeve is fixed on the shaft, and the tight inner sleeve is fixed on the end of the tight inner sleeve.
And can dismantle from the axle 5 after fixed cover 3 will tight interior sleeve 1, tight overcoat 2, and bearing 4, therefore whole structure after the installation, only need tight interior sleeve 1, tight overcoat 2, and bearing 4's structure can, according to the width of bearing 4, set up tight interior sleeve 1, tight overcoat 2's width, can realize tight interior sleeve 1, tight overcoat 2's width is slightly greater than the bearing width the condition just fix the bearing on the optical axis, required installation space reduces greatly, the problem that current tight sleeve device structure is complicated, the volume is difficult to assemble has been solved very much.
Example 2:
in the present embodiment, compared with embodiment 1, the end of the inner sleeve 1 with a larger diameter is further provided with a positioning member 14, and the positioning member 14 can be abutted against the end of the outer sleeve 2.
Specifically, the positioning piece 14 is an annular baffle, when the positioning piece 14 is abutted with the end part of the tight outer sleeve 2, the tight inner sleeve 1 and the shaft 5 are fixed, no extra measurement work is needed in the installation process, the installation precision can be well ensured, and the installation efficiency is improved;
according to different shaft diameters, different positions of the annular baffle plate can be arranged, or a gasket with a certain thickness is added, so that the installation accuracy and reliability are ensured.
Example 3:
in comparison with the embodiment 1, as shown in fig. 2 and 4, in the present embodiment, at least one locking screw 33 is further provided on the outer wall of the outer ring stop 32, and the fixing sleeve 3 is locked and fixed with the fastening sleeve 2 by the locking screw 33.
Specifically, the number of the locking screws 33 is 3, the locking screws are uniformly distributed on the outer wall of the outer ring stop block 32, the fixing sleeve 3 can be used as an installation tool or an auxiliary fixing device, and after the bearing fastening sleeve structure is installed, the fixing sleeve 3 is fixed in position through the locking screws 33, so that the fixing of the bearing 4 and the fixing of the whole bearing fastening sleeve structure are enhanced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (7)
1. The double-layer nested bearing fastening sleeve is characterized by comprising a fastening inner sleeve (1), a fastening outer sleeve (2) and a fixing 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 external threads;
the inner wall of the tight-fixing outer sleeve (2) is provided with an internal thread, the tight-fixing inner sleeve (1) is sleeved with the tight-fixing outer sleeve (2) through threads, the outer wall of the tight-fixing outer sleeve (2) is conical, and the bearing (4) is arranged on the tight-fixing outer sleeve (2);
the small-diameter end part of the tight inner sleeve (1) is provided with at least one end bayonet (13), the fixed sleeve (3) can be sleeved on the shaft (5), the fixed sleeve (3) comprises an inner ring clamping block (31) and an outer ring stop block (32), the inner ring clamping block (31) can be matched and clamped with the end bayonet (13), the outer ring stop block (32) can be abutted with the bearing (4), the tight inner sleeve (1) and the tight outer sleeve (2) can be screwed tightly by rotating the fixed sleeve (3), so that the tight inner sleeve (1) and the tight outer sleeve (2) are fixed on the shaft (5), and the bearing (4) is fixed on the tight outer sleeve (2);
an axial slot (12) is arranged on the fastening inner sleeve (1).
2. The double-layer nested bearing adapter sleeve according to claim 1, wherein a positioning piece (14) is further arranged at the thick-diameter end part of the adapter sleeve (1), and the positioning piece (14) can be abutted with the end part of the adapter sleeve (2).
3. A double-layer nested bearing adapter according to claim 2, characterized in that the positioning element (14) is an annular baffle, and when the positioning element (14) abuts against the end of the adapter sleeve (2), the adapter sleeve (1) is fixed to the shaft (5).
4. A double-layer nested bearing adapter as claimed in claim 1, wherein the number of end bayonets (13) is 3 and are uniformly distributed on the small-diameter end of the adapter sleeve (1).
5. A double nested bearing adapter according to claim 1, wherein the retaining sleeve (3) is removable from the shaft (5) after the retaining inner sleeve (1), the retaining outer sleeve (2), and the bearing (4) are secured.
6. A double-layer nested bearing adapter according to claim 1, wherein the outer wall of the outer ring stop (32) is further provided with at least one locking screw (33), and the locking screw (33) is used for locking and fixing the fixed sleeve (3) and the fixed sleeve (2).
7. The double-layer nested bearing adapter as claimed in claim 6, wherein the number of locking screws (33) is 3, and the locking screws are uniformly distributed on the outer wall of the outer ring stop block (32).
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 CN114508549A (en) | 2022-05-17 |
| CN114508549B true CN114508549B (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210135895.4A Active CN114508549B (en) | 2022-02-15 | 2022-02-15 | Double-layer nested bearing adapter sleeve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118088582B (en) * | 2024-04-12 | 2024-08-27 | 浙江得利亚自动化制造有限公司 | Ball bearing assembly and ball |
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| CN103831485A (en) * | 2012-11-23 | 2014-06-04 | 大连创新齿轮箱制造有限公司 | Tensioning fixture for gear grinding |
| CN111677769A (en) * | 2020-05-06 | 2020-09-18 | 宁波斯立福精密工业有限公司 | Bearing adapter sleeve with double-layer adapter structure |
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| SE353374B (en) * | 1968-06-28 | 1973-01-29 | Skf Svenska Kullagerfab Ab | |
| DE3215618A1 (en) * | 1982-04-27 | 1983-10-27 | Ralph 4048 Grevenbroich Müllenberg | Taper clamping arrangement with auxiliary ring |
| DE3884153D1 (en) * | 1987-12-01 | 1993-10-21 | Vma Nc Mess Und Antriebstechni | Jig. |
| DE102004062117B4 (en) * | 2004-12-23 | 2006-11-30 | Ab Skf | Bearing arrangement for a computer tomograph |
| US7637668B2 (en) * | 2006-10-10 | 2009-12-29 | 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 |
| DE102009005109A1 (en) * | 2009-01-19 | 2010-07-22 | Schaeffler Technologies Gmbh & Co. Kg | Fastening device for traction mechanism drive, comprises swivel arm, roller unit carried by swivel arm, and antifriction bearing that forms component of roller unit |
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| CN109590713A (en) * | 2018-10-31 | 2019-04-09 | 舍弗勒技术股份两合公司 | Mounting and dismounting device for bearing |
| CN209621853U (en) * | 2019-02-26 | 2019-11-12 | 小林英一 | A kind of bearing of double nut vertical pulling lock sleeve |
| CN213409843U (en) * | 2020-08-18 | 2021-06-11 | 辛集市澳森钢铁有限公司 | Split type loose wheel |
| CN112628294A (en) * | 2020-11-26 | 2021-04-09 | 山西华润福龙水泥有限公司 | Adjustable roller press bearing mounting device and manufacturing method |
| 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 | A combined bearing adapter sleeve |
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2022
- 2022-02-15 CN CN202210135895.4A patent/CN114508549B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831485A (en) * | 2012-11-23 | 2014-06-04 | 大连创新齿轮箱制造有限公司 | Tensioning fixture for gear grinding |
| CN111677769A (en) * | 2020-05-06 | 2020-09-18 | 宁波斯立福精密工业有限公司 | Bearing adapter sleeve with double-layer adapter structure |
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| CN114508549A (en) | 2022-05-17 |
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