CN110671427A - Bearing capable of offsetting shape tolerance of shaft neck - Google Patents
Bearing capable of offsetting shape tolerance of shaft neck Download PDFInfo
- Publication number
- CN110671427A CN110671427A CN201910952026.9A CN201910952026A CN110671427A CN 110671427 A CN110671427 A CN 110671427A CN 201910952026 A CN201910952026 A CN 201910952026A CN 110671427 A CN110671427 A CN 110671427A
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- China
- Prior art keywords
- bearing
- ring
- external
- fastening cover
- elastic chuck
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- Pending
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- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a bearing capable of offsetting shape tolerance of a shaft neck, which comprises a bearing inner ring, an elastic chuck, a bearing outer ring, a retainer and a rolling ball, wherein one end of the bearing inner ring is provided with a first conical head, one end of the elastic chuck is embedded into the bearing inner ring, and the conical end of the elastic chuck is matched with the first conical head; the bearing is characterized by further comprising a fastening cover ring, one end of the fastening cover ring is in threaded connection with the other end of the bearing inner ring, a second conical head is arranged at the other end of the fastening cover ring, the other end of the elastic chuck is embedded into the fastening cover ring, and the conical end of the elastic chuck is matched with the second conical head. According to the invention, the elastic chuck is arranged in the bearing inner ring and the fastening cover ring, and then the elastic chuck is extruded by screwing the fastening cover ring, so that the elastic chuck is deformed, the shape tolerance of the journal is offset, the journal is further held tightly, the assembly of the bearing and the journal is realized, the mounting difficulty of the bearing is greatly reduced, the processing precision requirement of the journal is reduced, and the processing cost of the journal is greatly reduced.
Description
Technical Field
The invention relates to a bearing capable of offsetting shape tolerance of a shaft neck.
Background
The bearing is an important part in mechanical assembly, and in the process of assembling the bearing and the journal, the installation difficulty of the bearing is high due to the machining error of the journal, and the machining precision of the journal is required to be very high.
Disclosure of Invention
The object of the present invention is to overcome the above-mentioned drawbacks and to provide a bearing which can counteract the tolerances of the shape of the journal.
In order to achieve the purpose, the invention adopts the following specific scheme:
a bearing capable of offsetting shape tolerance of a journal comprises a bearing inner ring, an elastic chuck, a bearing outer ring, a retainer and a plurality of rolling balls, wherein the retainer is arranged between the bearing inner ring and the bearing outer ring, the rolling balls are arranged on the retainer, the rolling balls are in rolling connection with the outer ring surface of the bearing inner ring and the inner ring surface of the bearing outer ring, one end of the bearing inner ring is provided with a first conical head, one end of the elastic chuck is embedded into the bearing inner ring, and the conical end of the elastic chuck is matched with the first conical head; the bearing is characterized by further comprising a fastening cover ring, one end of the fastening cover ring is in threaded connection with the other end of the bearing inner ring, a second conical head is arranged at the other end of the fastening cover ring, the other end of the elastic chuck is embedded into the fastening cover ring, and the conical end of the elastic chuck is matched with the second conical head.
The other end of the bearing inner ring is provided with an external thread part, the external diameter of the external thread part is smaller than that of the bearing inner ring, one end of the fastening cover ring is provided with an internal thread part, and the internal diameter of the internal thread part is larger than that of the fastening cover ring.
The locking structure comprises a bearing inner ring and a fastening cover ring, wherein the fastening cover ring is sleeved on an outer thread part of the bearing inner ring, the locking washer is provided with at least two outer locking lugs, the other end of the outer ring surface of the bearing inner ring is provided with first locking grooves matched with the outer locking lugs at intervals along the circumferential direction, and one end of the outer ring surface of the fastening cover ring is provided with second locking grooves matched with the outer locking lugs at intervals along the circumferential direction.
The invention has the beneficial effects that: compared with the prior art, the elastic chuck is arranged in the bearing inner ring and the fastening cover ring, and then the elastic chuck is extruded by screwing the fastening cover ring, so that the elastic chuck is deformed, the shape tolerance of the journal is offset, the journal is tightly held, the assembly of the bearing and the journal is realized, the mounting difficulty of the bearing is greatly reduced, the processing precision requirement of the journal is reduced, and the processing cost of the journal is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of a bearing provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view of another perspective of a bearing provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a bearing provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a bearing inner race provided by an embodiment of the invention;
FIG. 5 is a schematic structural view of a fastening cover ring provided by an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a collet provided in an embodiment of the present invention;
FIG. 7 is a schematic view of a stop washer according to an embodiment of the present invention;
description of reference numerals: 1-bearing inner race; 11-a first conical head; 12-an external threaded portion; 13-a first stop groove; 2-elastic chuck; 3-bearing outer ring; 4-fastening a cover ring; 41-a second conical head; 42-an internal threaded portion; 43-a second detent; 5-a stop washer; 51-external stop ears.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
As shown in fig. 1 to 7, the bearing capable of offsetting the shape tolerance of the journal according to the present embodiment includes a bearing inner ring 1, an elastic collet 2, a bearing outer ring 3, a retainer, and a plurality of rolling balls, wherein the retainer is disposed between the bearing inner ring 1 and the bearing outer ring 3, the rolling balls are disposed on the retainer, the rolling balls are in rolling connection with an outer annular surface of the bearing inner ring 1 and an inner annular surface of the bearing outer ring 3, one end of the bearing inner ring 1 is provided with a first tapered head 11, one end of the elastic collet 2 is embedded in the bearing inner ring 1, and a tapered end thereof is engaged with the first tapered head 11; the bearing inner ring structure is characterized by further comprising a fastening cover ring 4, one end of the fastening cover ring 4 is in threaded connection with the other end of the bearing inner ring 1, a second conical head 41 is arranged at the other end of the fastening cover ring 4, the other end of the elastic chuck 2 is embedded into the fastening cover ring 4, and the conical end of the elastic chuck is matched with the second conical head 41.
Specifically, twenty rolling balls are arranged on the retainer, and the outer ring surface of the bearing inner ring 1 and the inner ring surface of the bearing inner ring 1 are both provided with raceways matched with the rolling balls, since the elastic chuck 2 is arranged in the bearing inner ring 1 and the fastening cover ring 4, the fastening cover ring 4 is screwed, the second conical head 41 of the fastening cover ring 4 and the first conical head 11 of the bearing inner ring 1 can extrude the elastic chuck 2, and the elastic chuck 2 is extruded to generate deformation, thereby the elastic chuck 2 is tightly held with the shaft neck, the purpose of matching and connecting the bearing inner ring 1 with the shaft neck is achieved, the effect of thread clamping is realized, the installation difficulty of the bearing is reduced, the machining error of the shaft neck size is eliminated through the deformation of the elastic chuck 2, the precision requirement of the machining of the shaft neck is reduced, therefore, the processing cost of the shaft neck can be greatly reduced, and the device can be suitable for installation occasions with large size fluctuation of the shaft neck.
Based on the above embodiment, as shown in fig. 3 to 5, the other end of the bearing inner ring 1 is provided with an external thread portion 12, the external diameter of the external thread portion 12 is smaller than the external diameter of the bearing inner ring 1, one end of the fastening cover ring 4 is provided with an internal thread portion 42, the internal diameter of the internal thread portion 42 is larger than the internal diameter of the fastening cover ring 4, the external thread portion 12 and the internal thread portion 42 are screwed to realize the fixed connection of the bearing inner ring 1 and the fastening cover ring 4, and the elastic chuck 2 is pressed to connect the bearing and the journal, so as to realize the effect of thread clamping; in other embodiments, it is also possible to provide the male thread 12 on the fastening cover ring 4 and the female thread 42 on the bearing inner ring 1 to achieve the effect of a screw clamping.
Based on the above embodiment, as shown in fig. 2, 3 and 7, the fastening cover ring further includes a stop washer 5, the stop washer 5 is sleeved on the external thread portion 12 of the bearing inner ring 1, the stop washer 5 is provided with at least two external stop lugs 51, the other end of the outer annular surface of the bearing inner ring 1 is circumferentially provided with first stop grooves 13 at intervals for being matched with the external stop lugs 51, and one end of the outer annular surface of the fastening cover ring 4 is circumferentially provided with second stop grooves 43 at intervals for being matched with the external stop lugs 51; after the elastic chuck 2 is tightly held with the shaft neck, one outer stopping lug 51 is pressed into the first stopping groove 13, and the other outer stopping lug 51 is pressed into the second stopping groove 43, so that the relative movement between the bearing inner ring 1 and the fastening cover ring 4 can be effectively prevented, the elastic chuck 2 and the shaft neck are always in a tightly holding state during working, and the structure is more reliable. Of course, in this embodiment, three or more than three external stop lugs 51 may be further provided on the stop washer 5, so that after the bearing is fixed to the journal, in the case that there is a misalignment between the external stop lug 51 and the first stop groove 13 or the second stop groove 43, only the external stop lug 51 corresponding to the first stop groove 13 and the external stop lug 51 corresponding to the second stop groove 43 need to be selected, and then the external stop lugs 51 are respectively pressed into the first stop groove 13 and the second stop groove 43, which is more flexible in structure, and in this embodiment, six external stop lugs 51 are provided.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (4)
1. The bearing capable of offsetting the shape tolerance of the journal is characterized by comprising a bearing inner ring (1), an elastic chuck (2), a bearing outer ring (3), a retainer and a plurality of rolling balls, wherein the retainer is arranged between the bearing inner ring (1) and the bearing outer ring (3), the rolling balls are arranged on the retainer and are in rolling connection with the outer ring surface of the bearing inner ring (1) and the inner ring surface of the bearing outer ring (3), one end of the bearing inner ring (1) is provided with a first conical head (11), one end of the elastic chuck (2) is embedded into the bearing inner ring (1), and the conical end of the elastic chuck is matched with the first conical head (11); the bearing is characterized by further comprising a fastening cover ring (4), one end of the fastening cover ring (4) is in threaded connection with the other end of the bearing inner ring (1), a second conical head (41) is arranged at the other end of the fastening cover ring (4), the other end of the elastic chuck (2) is embedded into the fastening cover ring (4), and the conical end of the elastic chuck is matched with the second conical head (41).
2. Bearing capable of offsetting journal shape tolerances according to claim 1, characterized in that the other end of the inner bearing ring (1) is provided with an external threaded part (12), the external threaded part (12) has an external diameter smaller than the external diameter of the inner bearing ring (1), one end of the fastening cover ring (4) is provided with an internal threaded part (42), the internal diameter of the internal threaded part (42) is larger than the internal diameter of the fastening cover ring (4).
3. A bearing capable of offsetting shape tolerance of shaft neck according to claim 2, further comprising a stop washer (5), wherein the stop washer (5) is sleeved on the external thread part (12) of the inner bearing ring (1), the stop washer (5) is provided with at least two external stop lugs (51), the other end of the external annular surface of the inner bearing ring (1) is circumferentially provided with first stop grooves (13) for being matched with the external stop lugs (51), and the one end of the external annular surface of the fastening cover ring (4) is circumferentially provided with second stop grooves (43) for being matched with the external stop lugs (51).
4. A bearing capable of offsetting shape tolerance of shaft neck according to claim 2, further comprising a stop washer (5), wherein the stop washer (5) is sleeved on the external thread part (12) of the inner bearing ring (1), the stop washer (5) is provided with at least two external stop lugs (51), the other end of the external annular surface of the inner bearing ring (1) is circumferentially provided with first stop grooves (13) for being matched with the external stop lugs (51), and the one end of the external annular surface of the fastening cover ring (4) is circumferentially provided with second stop grooves (43) for being matched with the external stop lugs (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952026.9A CN110671427A (en) | 2019-10-09 | 2019-10-09 | Bearing capable of offsetting shape tolerance of shaft neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952026.9A CN110671427A (en) | 2019-10-09 | 2019-10-09 | Bearing capable of offsetting shape tolerance of shaft neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671427A true CN110671427A (en) | 2020-01-10 |
Family
ID=69080952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910952026.9A Pending CN110671427A (en) | 2019-10-09 | 2019-10-09 | Bearing capable of offsetting shape tolerance of shaft neck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404924A (en) * | 2020-10-22 | 2021-02-26 | 西安空间无线电技术研究所 | A method of multi-part stacking assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816013A (en) * | 1972-02-24 | 1974-06-11 | Skf Ind Trading & Dev | Apparatus for mounting bearing assemblies |
| SE8401126D0 (en) * | 1984-03-01 | 1984-03-01 | Skf Nova Ab | DEVICE FOR FIXING A MACHINE ELEMENT |
| JPS60256622A (en) * | 1984-05-31 | 1985-12-18 | Masanori Mochizuki | Shafts connecting device |
| JP2009138765A (en) * | 2007-12-03 | 2009-06-25 | Ntn Corp | Bearing unit and its incorporation method |
| CN202991904U (en) * | 2012-12-24 | 2013-06-12 | 石家庄常山纺织股份有限公司 | Coupling for emergency use |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | Adapter sleeve for a bearing and method for locking an adapter sleeve for a bearing |
| CN110296154A (en) * | 2019-08-14 | 2019-10-01 | 东莞职业技术学院 | Tapered sleeve shaft coupling |
-
2019
- 2019-10-09 CN CN201910952026.9A patent/CN110671427A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816013A (en) * | 1972-02-24 | 1974-06-11 | Skf Ind Trading & Dev | Apparatus for mounting bearing assemblies |
| SE8401126D0 (en) * | 1984-03-01 | 1984-03-01 | Skf Nova Ab | DEVICE FOR FIXING A MACHINE ELEMENT |
| JPS60256622A (en) * | 1984-05-31 | 1985-12-18 | Masanori Mochizuki | Shafts connecting device |
| JP2009138765A (en) * | 2007-12-03 | 2009-06-25 | Ntn Corp | Bearing unit and its incorporation method |
| CN202991904U (en) * | 2012-12-24 | 2013-06-12 | 石家庄常山纺织股份有限公司 | Coupling for emergency use |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | Adapter sleeve for a bearing and method for locking an adapter sleeve for a bearing |
| CN110296154A (en) * | 2019-08-14 | 2019-10-01 | 东莞职业技术学院 | Tapered sleeve shaft coupling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404924A (en) * | 2020-10-22 | 2021-02-26 | 西安空间无线电技术研究所 | A method of multi-part stacking assembly |
| CN112404924B (en) * | 2020-10-22 | 2021-12-07 | 西安空间无线电技术研究所 | Multi-part stacking assembly method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
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| RJ01 | Rejection of invention patent application after publication |