CN105736583A - Double-row angular contact ball bearing and installation structure thereof - Google Patents
Double-row angular contact ball bearing and installation structure thereof Download PDFInfo
- Publication number
- CN105736583A CN105736583A CN201610250224.7A CN201610250224A CN105736583A CN 105736583 A CN105736583 A CN 105736583A CN 201610250224 A CN201610250224 A CN 201610250224A CN 105736583 A CN105736583 A CN 105736583A
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- CN
- China
- Prior art keywords
- bearing
- locking groove
- outer ring
- double
- angular contact
- 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
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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
- 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
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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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 double-row angular contact ball bearing and an installation structure thereof. The installation structure comprises a host machine, and a bearing mounted in a bearing hole in the host machine; a stop groove a with a semicircular section is peripherally formed in the inner wall of the bearing hole; a stop groove b with a semicircular section is axially formed in the outer wall of an outer ring of the bearing; and a positioning steel ball is filled in a circular groove formed between the stop groove a and the stop groove b. The installation structure uses the positioning steel ball for positioning to prevent axial displacement and increase axial bearing capacity. The stop groove a, the stop groove b and the positioning steel ball are matched without generating a stress concentration point, so that the service life of the bearing is largely prolonged. After the bearing is failed, the disassembly and replacement efficiency is improved.
Description
Technical field
The invention belongs to field of bearings, be specifically related to a kind of double-row angular contact bal bearing and mounting structure thereof.
Background technology
Bearing (bearing) is that one is applied on rotating mechanism, is used for supporting, and reduces friction and bears the parts of load.This product structure designs exclusively for for the machinery such as hydraulic motor, hydraulic wireline winch, owing to mechanical dimensions is less, there is no axial direction positioning device and unpack format cannot be made, so bearing overall dimensions is compact and to carry axial locating slot, radial load should be born and bear axial load again simultaneously, and bearing capacity is high, it is adaptable to heavy duty, low speed occasion.This product structure is because of its simple in construction, and overall dimensions is compact, and bearing capacity is very strong, thus is widely used in the machinery such as hydraulic motor, hydraulic wireline winch.This product adopts import or sub-fraction domestic mostly at present, and wherein domestic main or employing 65Mn locating snap ring and bearing outside diameter U-shaped locking groove carry out bearing and axially position, and as depicted in figs. 1 and 2, the external diameter locking groove of this structure has the disadvantage in that
1, due to installation time need 65Mn locating snap ring 2 to compress, because locating snap ring rigidity is better, cause bearing installation difficulty.
2, owing to locating snap ring enters elastic release after main frame hole, cause main frame hole to scratch, ultimately result in bearing generation noise or rolling element discontinuity and initial failure.
3, because locating snap ring and locking groove size exist difference, so bearing axially produces displacement when bearing bears axial force, thus causing bearing initial failure.
4, owing to locking groove exists multiple wedge angle, so arising that stress is concentrated when bearing bearing load, thus causing bearing initial failure.
5, owing to locking groove and locating snap ring are in the middle of main frame hole, it is replaced so bearing can only be destroyed by force when noise or initial failure occur when bearing, causes unnecessary replacement cost.
Summary of the invention
The technical problem to be solved is: the deficiency existed for prior art, it is provided that a kind of novel structure, the double-row angular contact bal bearing of easy accessibility and mounting structure thereof.
For realizing the purpose of the present invention, it is achieved by the following technical solutions: the mounting structure of a kind of double-row angular contact bal bearing, include main frame and be arranged on the bearing in main frame upper bearing aperture, described dead eye inwall circumferentially forms the locking groove a of cross section semicircular in shape, the outer ring outer wall of described bearing forms the locking groove b of cross section semicircular in shape vertically, is filled with locking ball in the circular groove formed between described locking groove a and locking groove b.
Preferably: described main frame also forms and fills out ball with locking groove a is connected.
Preferably: described bearing includes a described outer ring, two inner rings, and it is arranged on two two groups of steel balls between inner ring and outer ring, often group steel ball is arranged on a retainer.
The invention also discloses a kind of double-row angular contact bal bearing, described bearing includes an outer ring, two inner rings, and is arranged on two two groups of steel balls between inner ring and outer ring, and often group steel ball is arranged on a retainer；The outer ring outer wall of described bearing forms the locking groove b of cross section semicircular in shape vertically.
Compared with prior art, the invention has the beneficial effects as follows: after 1. removing snap ring, reduce the installation difficulty of bearing, thus improve installation effectiveness.2. after removing snap ring, the dead eye of main frame will not be scratched when installing by bearing, it is to avoid the bearing failure caused because of scuffing causes dispute.3. utilize locking ball location to avoid axial displacement, and add axial carrying capacity.4. locking groove a, locking groove b and locking ball coordinate, and are absent from stress concentration point, and bearing life is largely increased.5., after bearing failure, dismounting and replacing efficiency are improved.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of prior art double-row angular contact bal bearing.
Fig. 2 is the structural representation of prior art locating snap ring.
Fig. 3 is the structural representation of the present invention.
1, main frame；10, locking groove a；11, ball is filled out；2, locating snap ring；3, bearing；31, outer ring；311, locking groove b；32, inner ring；33, steel ball；34, retainer；4, locking ball.
Detailed description of the invention
Below according to accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
Embodiment 1
According to Fig. 3, a kind of double-row angular contact bal bearing described in the present embodiment, described bearing includes an outer ring 31, two inner rings 32, and is arranged on two two groups of steel balls 33 between inner ring and outer ring, and often group steel ball is arranged on a retainer 34；The outer ring outer wall of described bearing forms the locking groove b311 of cross section semicircular in shape vertically.
This bearing is mainly used in the machinery such as hydraulic motor, hydraulic wireline winch, mold in adopting during trap, steel ball is put in retainer pocket hole, ensure that steel ball quantity is corresponding with retainer pocket hole number, steel ball is made to reach good contacting with retainer, then smooth for the inner ring of finished product putting in steel ball width circle is extruded, finally utilize oil bath heating to make swell with in the outer ring of fore shaft inner assembly (steel ball, inner ring, retainer) press-in；Then second half is carried out trap and realizes last trap by profit in the same way, thus inner ring, outer ring, steel ball, retainer are combined, constitutes a set of bearing.
Embodiment 2
According to Fig. 1 to Fig. 3, the mounting structure of a kind of double-row angular contact bal bearing described in the present embodiment, include main frame 1 and the bearing 3 being arranged in main frame upper bearing aperture, described dead eye inwall circumferentially forms the locking groove a10 of cross section semicircular in shape, the outer ring outer wall of described bearing forms the locking groove b311 of cross section semicircular in shape vertically, is filled with locking ball 4 in the circular groove formed between described locking groove a and locking groove b.
Described main frame also forms be connected with locking groove a fill out ball 11.
Described bearing includes a described outer ring 31, two inner rings 32, and is arranged on two two groups of steel balls 33 between inner ring and outer ring, and often group steel ball is arranged on a retainer 34.
Described locking groove a, locking groove b are absent from the situation of wedge angle, Pedicellus et Pericarpium Trapae, stress so largely can be avoided to concentrate, it is achieved the operating that bearing is good when bearing bigger load, it is ensured that bearing stress will not concentrate initial failure.Locking groove a, locking groove b coordinate with locking ball, it is possible to make bearing bear bi-directional axial load, and will not produce axial displacement, reduce bearing noise, thus improving main frame running accuracy.
Bearing directly utilizes press-fit approach and loads the dead eye on main frame 1, make locking groove a and locking groove b overlap after bearing loads the dead eye of main frame 1 and form the locking groove that a cross section is rounded, the ball of filling out then passed through on main frame 1 is sequentially placed into locking ball in locking groove, utilizes plug screw to block filling out ball after locking ball fills up locking groove.So not only easy to assembly, and main frame running accuracy and life-span be all largely increased.
When bearing initial failure, take out main frame and fill out the plug screw in ball, utilize instrument that locking ball is taken out successively, then utilize and draw the instrument of unloading that failing bearings taking-up is changed again.So not only convenient disassembly, and main frame running accuracy and life-span be all largely increased, change efficiency be also largely increased.Avoid locating snap ring location dismounting technique (utilizes sawing to carry out bearing multistage segmentation to failing bearings, then take out failing bearings again to change) dead eye on main frame 1 is scratched, and it also avoid because main frame 1 hole scratches the situation that the bearing rotation precision caused reduces
Some technical parameters such as the size of described locking groove a, the radius size of locking groove b, the degree of depth and locking ball are to use the parameter optimization gained such as steel ball size, bearing outer ring wall thickness, main frame wall thickness according to bearing size size, bearing, and the realization of its data is to carry out selectivity optimization design by computer program.
After bearing loads main frame, it is necessary to assure bearing operation is normal, will not be too little and stuck because of gap.
Claims (4)
1. the mounting structure of a double-row angular contact bal bearing, it is characterized in that: include main frame and be arranged on the bearing in main frame upper bearing aperture, described dead eye inwall circumferentially forms the locking groove a of cross section semicircular in shape, the outer ring outer wall of described bearing forms the locking groove b of cross section semicircular in shape vertically, is filled with locking ball in the circular groove formed between described locking groove a and locking groove b.
2. the mounting structure of a kind of double-row angular contact bal bearing according to claim 1, it is characterised in that: described main frame also forms and fills out ball with locking groove a is connected.
3. the mounting structure of a kind of double-row angular contact bal bearing according to claim 1, it is characterized in that: described bearing includes a described outer ring, two inner rings, and it is arranged on two two groups of steel balls between inner ring and outer ring, often group steel ball is arranged on a retainer.
4. a double-row angular contact bal bearing, it is characterised in that: described bearing includes an outer ring, two inner rings, and is arranged on two two groups of steel balls between inner ring and outer ring, and often group steel ball is arranged on a retainer；The outer ring outer wall of described bearing forms the locking groove b of cross section semicircular in shape vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250224.7A CN105736583A (en) | 2016-04-21 | 2016-04-21 | Double-row angular contact ball bearing and installation structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250224.7A CN105736583A (en) | 2016-04-21 | 2016-04-21 | Double-row angular contact ball bearing and installation structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736583A true CN105736583A (en) | 2016-07-06 |
Family
ID=56254997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610250224.7A Pending CN105736583A (en) | 2016-04-21 | 2016-04-21 | Double-row angular contact ball bearing and installation structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272955A1 (en) * | 2021-06-29 | 2023-01-05 | 人本股份有限公司 | Quick-connection pressing plate bearing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003020150A1 (en) * | 2001-08-28 | 2003-03-13 | Kaltenbach & Voigt Gmbh & Co. Kg | Medical or dental handpiece with a rotary part mounted on an antifriction bearing |
| JP4910936B2 (en) * | 2007-08-13 | 2012-04-04 | 日本精工株式会社 | Double row ball bearing |
| CN102444663A (en) * | 2011-12-30 | 2012-05-09 | 瓦房店轴承集团有限责任公司 | Novel high-speed high-rigidity angular contact ball matched bearing for machine tool spindle |
| CN203081841U (en) * | 2013-03-13 | 2013-07-24 | 泛科轴承集团有限公司 | Double-faced fastening insert bearing |
| CN203214605U (en) * | 2013-04-02 | 2013-09-25 | 常州市武进永达机械轴承有限公司 | Stop double-row tapered roller bearing |
| CN203362814U (en) * | 2013-07-12 | 2013-12-25 | 上虞市万里汽车轴承有限公司 | Double-row angular contact ball bearing |
| CN204003966U (en) * | 2014-08-13 | 2014-12-10 | 慈溪市特种轴承有限公司 | The bearing with spherical outside surface of usheing to seat |
| CN205559586U (en) * | 2016-04-21 | 2016-09-07 | 浙江天马轴承有限公司 | Double column angular contact ball bearing and mounting structure thereof |
-
2016
- 2016-04-21 CN CN201610250224.7A patent/CN105736583A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003020150A1 (en) * | 2001-08-28 | 2003-03-13 | Kaltenbach & Voigt Gmbh & Co. Kg | Medical or dental handpiece with a rotary part mounted on an antifriction bearing |
| JP4910936B2 (en) * | 2007-08-13 | 2012-04-04 | 日本精工株式会社 | Double row ball bearing |
| CN102444663A (en) * | 2011-12-30 | 2012-05-09 | 瓦房店轴承集团有限责任公司 | Novel high-speed high-rigidity angular contact ball matched bearing for machine tool spindle |
| CN203081841U (en) * | 2013-03-13 | 2013-07-24 | 泛科轴承集团有限公司 | Double-faced fastening insert bearing |
| CN203214605U (en) * | 2013-04-02 | 2013-09-25 | 常州市武进永达机械轴承有限公司 | Stop double-row tapered roller bearing |
| CN203362814U (en) * | 2013-07-12 | 2013-12-25 | 上虞市万里汽车轴承有限公司 | Double-row angular contact ball bearing |
| CN204003966U (en) * | 2014-08-13 | 2014-12-10 | 慈溪市特种轴承有限公司 | The bearing with spherical outside surface of usheing to seat |
| CN205559586U (en) * | 2016-04-21 | 2016-09-07 | 浙江天马轴承有限公司 | Double column angular contact ball bearing and mounting structure thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272955A1 (en) * | 2021-06-29 | 2023-01-05 | 人本股份有限公司 | Quick-connection pressing plate bearing device |
| EP4137711A4 (en) * | 2021-06-29 | 2023-09-20 | C&U Company Limited. | Quick-connection pressing plate bearing device |
| JP7498788B2 (en) | 2021-06-29 | 2024-06-12 | 人本股▲ふん▼有限公司 | Quick connect platen bearing system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |