CN110056578A - Bearing compresses locking device - Google Patents
Bearing compresses locking device Download PDFInfo
- Publication number
- CN110056578A CN110056578A CN201910390510.7A CN201910390510A CN110056578A CN 110056578 A CN110056578 A CN 110056578A CN 201910390510 A CN201910390510 A CN 201910390510A CN 110056578 A CN110056578 A CN 110056578A
- Authority
- CN
- China
- Prior art keywords
- nut
- annular groove
- bearing
- rotary shaft
- locking device
- 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.)
- Pending
Links
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 210000005069 ears Anatomy 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000138939 Ricinodendron heudelotii Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003825 pressing Methods 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
-
- 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
- F16C35/063—Fixing them on the shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The present invention provides a kind of bearing compression locking device, comprising: the surface of rotary shaft, the rotary shaft has an outer annular groove；Bearing is mounted in the rotary shaft and has a bearing inner ring；Nut is set in the rotary shaft and abuts the bearing inner ring, and the nut has an interior annular groove, and the interior annular groove and the outer annular groove are located on same section；And circlip for hole, it is arranged between the outer annular groove and the interior annular groove.The present invention compresses bearing inner ring by nut, and annular groove is provided on nut and rotary shaft, circlip for hole is equipped in slot to limit the axial movement of nut, to generate anti-loose effect to nut.Bearing compression locking device number of parts of the invention is few, fabricates at low cost, nut non-loosening risk, it is ensured that rotary shaft securely and reliably works.
Description
Technical field
The present invention relates to field of bearings, in particular to a kind of bearing compresses locking device.
Background technique
In mechanical driving device, the inner ring of the bearing of installation on the rotary shaft need to be usually compressed, it is safe and reliable to guarantee
Work, generally need to take locking measures to pressing device.
Currently, bearing compress locking device generally use it is following several:
A kind of structure is as shown in Figure 1A and 1B, is connected between end face grooved round nut 11 and rotary shaft 10 by screw thread 13, revolves
Groove is offered in shaft 10, the ear of lock washer with double ears 12 installs in the groove, when end face grooved round nut 11 compresses
After the inner ring of bearing 14, the groove that end face grooved round nut 11 opens up is placed in after the lug 15 of lock washer with double ears 12 is dug
In, anti-loose effect is played to end face grooved round nut 11.But lock washer with double ears 12 is thin-wall part in this structure, pacifies installation and dismantling
When unloading, the lug 15 of lock washer with double ears 12 need to be stirred, is easy to cause lug 15 to damage and chip off-falling, causes security risk.
Another structure is as shown in Figure 2 A and 2B, is connected between locking nut 21 and rotary shaft 20 by screw thread 25, works as locking
After nut 21 compresses the inner ring of bearing 24, the boss being arranged inside stop washer 23 is packed into the ditch being correspondingly arranged in rotary shaft 20
In slot, the multiple serrations being arranged outside stop washer 23 are fitted into the groove being correspondingly arranged on locking nut 21, are finally packed into
Circlip 22 limits the axial movement of stop washer 23, and circlip 22 and stop washer 23 combine to locking nut 21
Play anti-loose effect.But the number of parts of this structure is more, and it is more to be provided with quantity on stop washer 23 and locking nut 21
Serration and groove, need to customize dedicated tool processing, fabricate higher cost.
As shown in figs.3 a and 3b, bearing 34 is mounted in rotary shaft 30 yet another construction, using 31 compression axis of shaft end ring
The inner ring for holding 34 compresses shaft end ring 31 by screw 33, locking to screw 33 using spring washer 32.But spiral shell in this structure
Nail 33 has the risk that falls off, and rotary shaft 30 is caused to have security risk during the work time.
Therefore, currently used bearing, which compresses locking device, has that security risk or manufacturing cost are high.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide it is a kind of fabricate it is at low cost and safe and reliable
Bearing compresses locking device.
To achieve the above object, scheme of the present invention are as follows:
A kind of bearing compression locking device, comprising:
The surface of rotary shaft, the rotary shaft has an outer annular groove；
Bearing is mounted in the rotary shaft and has a bearing inner ring；
Nut is set in the rotary shaft and abuts the bearing inner ring, and the nut has an interior annular groove, described
Interior annular groove and the outer annular groove are located on same section；And
Circlip for hole is arranged between the outer annular groove and the interior annular groove.
In some embodiments, the nut is connected through a screw thread with the rotary shaft.
In some embodiments, the depth of the outer annular groove is greater than the thickness of the circlip for hole.
In some embodiments, the depth of the interior annular groove is less than the thickness of the circlip for hole.
In some embodiments, the nut inner wall at the abutting of the nut and the bearing inner ring is the conical surface.
In some embodiments, the nut inner wall between the conical surface and the interior annular groove is cylindrical surface.
In some embodiments, the nut has multiple through-holes on the corresponding side wall of the interior annular groove.
In some embodiments, the diameter of the through-hole is greater than the width of the interior annular groove.
The present invention compresses bearing inner ring by nut, and annular groove is provided on nut and rotary shaft, is equipped in slot
Circlip for hole is to limit the axial movement of nut, to generate anti-loose effect to nut.Bearing of the invention compresses locking
Apparatus parts quantity is few, fabricates at low cost, nut non-loosening risk, it is ensured that rotary shaft securely and reliably works.
Detailed description of the invention
Figure 1A and Figure 1B is the structural schematic diagram that a kind of bearing compresses locking device in the prior art；
Fig. 2A and Fig. 2 B is the structural schematic diagram that another bearing compresses locking device in the prior art；
Fig. 3 A and Fig. 3 B are the structural schematic diagram that another bearing compresses locking device in the prior art；
Fig. 4 is the structural schematic diagram that bearing of the invention compresses locking device；
Fig. 5 A is the perspective view that bearing of the invention compresses nut in locking device；
Fig. 5 B is the cross-sectional view that bearing of the invention compresses nut in locking device；
Fig. 5 C is the sectional view in the direction A-A in Fig. 5 B.
Wherein, the reference numerals are as follows:
10: rotary shaft
11: end face grooved round nut
12: lock washer with double ears
13: screw thread
14: bearing
15: lug
20: rotary shaft
21: locking nut
22: circlip
23: stop washer
24: bearing
25: screw thread
30: rotary shaft
31: end ring
32: spring washer
33: screw
34: bearing
50: rotary shaft
51: circlip for hole
52: screw thread
53: nut
54: bearing
55: outer annular groove
56: the conical surface
57: through-hole
58: interior annular groove
59: cylindrical surface
Specific embodiment
Below according to specific embodiment, technical scheme is described further.Protection scope of the present invention is unlimited
In following embodiment, these examples are enumerated merely for exemplary purpose without limiting the invention in any way.
Fig. 4 is the structural schematic diagram that bearing of the invention compresses locking device, as shown in figure 4, bearing of the invention compresses
Locking device includes rotary shaft 50, bearing 54, nut 53 and circlip for hole 51.
Bearing 54 is mounted in rotary shaft 50, such as is revolved around it axis 50 and be arranged, and nut 53 is set in rotary shaft 50
And the bearing inner ring of bearing 54 is abutted, to compress bearing inner ring.
The outer surface of rotary shaft 50 has outer annular groove 55, and outer annular groove 55 is covered by nut 53.
Nut 53 is connect with rotary shaft 50 by screw thread 52, and the inner surface of nut 53 has interior annular groove 58, interior annular groove
58 revolve around it axis 50 with outer annular groove 55 and set.When nut 53 abut bearing 54 bearing inner ring when, interior annular groove 58 with
Outer annular groove 55 is located on the same radial section of rotary shaft 50.
Circlip for hole 51 is arranged between interior annular groove 58 and outer annular groove 55, can after 51 tensioner of circlip for hole
Nut 53 is limited along the axial movement of rotary shaft 50, to generate anti-loose effect to nut 53.
The depth of outer annular groove 55 be greater than circlip for hole 51 thickness (i.e. the outer inside radius of circlip for hole 51 it
Difference), so that circlip for hole 51 can be compressed to completely within outer annular groove 55 when guaranteeing that nut 53 mounts and dismounts.
The depth of interior annular groove 58 is less than the thickness of circlip for hole 51, thus after guaranteeing 51 spreading of circlip for hole
Between rotary shaft 50 and nut 53, and then limit the axial movement of nut 53.
Fig. 5 A is the perspective view that bearing of the invention compresses nut in locking device, and Fig. 5 B is that bearing compression of the invention is anti-
The cross-sectional view of nut in loose device, Fig. 5 C is the sectional view in the direction A-A in Fig. 5 B, as shown in Fig. 4 and Fig. 5 A- Fig. 5 C, nut
53 inner wall is equipped with the conical surface 56 and cylindrical surface 59, i.e. nut inner wall at the abutting of nut 53 and bearing inner ring is the conical surface 56, cone
Nut inner wall between face 56 and interior annular groove 58 is cylindrical surface 59, so as to when mount and dismount nut, hole is elastic
Retaining ring 51 is compressed in the outer annular groove 55 in rotary shaft 50.
To be easy to disassemble, nut 53 is circumferentially arranged on the side wall corresponding to interior annular groove 58 multiple through-holes 57, tears open
Circlip for hole 51 can be compressed by through-hole 57 using tool when removing nut 53.
The diameter of through-hole 57 is greater than the width of interior annular groove 58, to guarantee the sustainable compression circlip for hole 51 of tool,
Until the cylindrical surface 59 on nut 53 compresses circlip for hole 51.
Bearing of the invention compresses locking device and can install and use in the following manner:
First circlip for hole 51 is placed at the outer annular groove 58 in rotary shaft 50；
Nut 53 is tightened, outer ring circlip for hole 51 being compressed to by the conical surface 56 on nut 53 in rotary shaft 50
In shape slot 55；
Continue to tighten nut 53, when the arrival of interior annular groove 58 on nut 53 is corresponding with the outer annular groove 55 in rotary shaft 50
Position when, circlip for hole 51 can automatic spreading, be located at after 51 spreading of circlip for hole rotary shaft 50 and nut 53 it
Between, for limiting the axial movement of nut 53, it rotate nut 53 can not around own axes, to play locking work to nut 53
With.
Bearing of the invention compresses locking device and can dismantle in the following manner:
By many places through-hole 57 on nut 53, circlip for hole 51 is compressed to using tool outer in rotary shaft 50
In annular groove 55, circlip for hole 51 is persistently compressed when the cylindrical surface 59 on nut 53 compresses circlip for hole 51,
Releasable tool；Continue to unscrew nut 53, the disassembly of achievable nut 53.
Compared with the structure shown in Figure 1A-Figure 1B, bearing of the invention compresses locking device in nut disassembly process, no
Nut and circlip for hole can be caused to damage and chip off-falling, security risk is not present.
Compared with the structure shown in Fig. 2A-Fig. 2 B, it is few that bearing of the invention compresses locking device number of parts, and is not required to specially
With tool sharpening, fabricate at low cost.
Compared with the structure shown in Fig. 3 A- Fig. 3 B, bearing of the invention compresses circlip for hole installation in locking device
There is no the risks that falls off in nut interior, the course of work, it is ensured that rotary shaft securely and reliably works.
In conclusion the present invention compresses bearing inner ring by nut, annular groove, slot are provided on nut and rotary shaft
Circlip for hole is inside installed to limit the axial movement of nut, to generate anti-loose effect to nut.
Bearing of the invention compresses locking device and has been applied to transmission device, number of parts is few, processing and manufacturing is at low cost,
Assembly is simple, actually examined and using show nut can safely and reliably clamp nut, loosenings will not be generated, it is ensured that revolve
Shaft securely and reliably works.
Those skilled in the art should be noted that embodiment described in the invention is only exemplary, can be
Various other replacements, changes and improvements are made in the scope of the present invention.Thus, the present invention is not limited to the above embodiments, and only
It is defined by the claims.
Claims (8)
1. a kind of bearing compresses locking device characterized by comprising
The surface of rotary shaft, the rotary shaft has an outer annular groove；
Bearing is mounted in the rotary shaft and has a bearing inner ring；
Nut, is set in the rotary shaft and abuts the bearing inner ring, and the nut has an interior annular groove, the inner ring
Shape slot and the outer annular groove are located on same section；And
Circlip for hole is arranged between the outer annular groove and the interior annular groove.
2. bearing according to claim 1 compresses locking device, which is characterized in that the nut passes through with the rotary shaft
It is threadedly coupled.
3. bearing according to claim 1 compresses locking device, which is characterized in that the depth of the outer annular groove is greater than institute
State the thickness of circlip for hole.
4. bearing according to claim 1 compresses locking device, which is characterized in that the depth of the interior annular groove is less than institute
State the thickness of circlip for hole.
5. bearing according to claim 1 compresses locking device, which is characterized in that the nut and the bearing inner ring
Nut inner wall at abutting is the conical surface.
6. bearing according to claim 5 compresses locking device, which is characterized in that the conical surface and the interior annular groove it
Between nut inner wall be cylindrical surface.
7. bearing according to claim 1 compresses locking device, which is characterized in that the nut is in the interior annular groove pair
There are multiple through-holes on the side wall answered.
8. bearing according to claim 7 compresses locking device, which is characterized in that the diameter of the through-hole is greater than in described
The width of annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390510.7A CN110056578A (en) | 2019-05-10 | 2019-05-10 | Bearing compresses locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390510.7A CN110056578A (en) | 2019-05-10 | 2019-05-10 | Bearing compresses locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056578A true CN110056578A (en) | 2019-07-26 |
Family
ID=67322990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910390510.7A Pending CN110056578A (en) | 2019-05-10 | 2019-05-10 | Bearing compresses locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056578A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307394A (en) * | 2019-08-12 | 2019-10-08 | 无锡斯考尔自动控制设备有限公司 | Split high-precision anti-loosening valve trim |
| CN111577739A (en) * | 2020-05-29 | 2020-08-25 | 中国航发湖南动力机械研究所 | Locking nut anti-loosening device |
| CN114542578A (en) * | 2022-02-18 | 2022-05-27 | 中国人民解放军总参谋部第六十研究所 | Thread anti-loosening system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0276916A (en) * | 1988-03-30 | 1990-03-16 | Aeroquip Corp | O ring fixing mechanism |
| JP2001241424A (en) * | 2000-03-01 | 2001-09-07 | Hamanaka Nut Kk | Locking structure for fastening with bolt and nut |
| CN101182898A (en) * | 2006-11-16 | 2008-05-21 | 光阳产业股份有限公司 | Pipe adaptor, coupling releasing appliance and pipe adaptor device |
| CN201487002U (en) * | 2009-08-06 | 2010-05-26 | 高志明 | Locking device for tapered thread bearing |
| CN201650992U (en) * | 2010-03-19 | 2010-11-24 | 徐工集团工程机械股份有限公司科技分公司 | Nut and bolt assembly type anti-loosening device |
| CN104989734A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Shaft fastener |
| JP2015224726A (en) * | 2014-05-28 | 2015-12-14 | Ntn株式会社 | Bearing lock implement, shaft and bearing device |
| EP3040581A1 (en) * | 2015-01-05 | 2016-07-06 | Aktiebolaget SKF | Pulley device for a drive element |
| CN107013552A (en) * | 2017-03-24 | 2017-08-04 | 中国北方发动机研究所(天津) | A kind of active intrusive mood bolt connection anti-loose structure and its moulding process |
-
2019
- 2019-05-10 CN CN201910390510.7A patent/CN110056578A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0276916A (en) * | 1988-03-30 | 1990-03-16 | Aeroquip Corp | O ring fixing mechanism |
| JP2001241424A (en) * | 2000-03-01 | 2001-09-07 | Hamanaka Nut Kk | Locking structure for fastening with bolt and nut |
| CN101182898A (en) * | 2006-11-16 | 2008-05-21 | 光阳产业股份有限公司 | Pipe adaptor, coupling releasing appliance and pipe adaptor device |
| CN201487002U (en) * | 2009-08-06 | 2010-05-26 | 高志明 | Locking device for tapered thread bearing |
| CN201650992U (en) * | 2010-03-19 | 2010-11-24 | 徐工集团工程机械股份有限公司科技分公司 | Nut and bolt assembly type anti-loosening device |
| JP2015224726A (en) * | 2014-05-28 | 2015-12-14 | Ntn株式会社 | Bearing lock implement, shaft and bearing device |
| EP3040581A1 (en) * | 2015-01-05 | 2016-07-06 | Aktiebolaget SKF | Pulley device for a drive element |
| CN104989734A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Shaft fastener |
| CN107013552A (en) * | 2017-03-24 | 2017-08-04 | 中国北方发动机研究所(天津) | A kind of active intrusive mood bolt connection anti-loose structure and its moulding process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307394A (en) * | 2019-08-12 | 2019-10-08 | 无锡斯考尔自动控制设备有限公司 | Split high-precision anti-loosening valve trim |
| CN111577739A (en) * | 2020-05-29 | 2020-08-25 | 中国航发湖南动力机械研究所 | Locking nut anti-loosening device |
| CN114542578A (en) * | 2022-02-18 | 2022-05-27 | 中国人民解放军总参谋部第六十研究所 | Thread anti-loosening system |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190726 |
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| RJ01 | Rejection of invention patent application after publication |