CN114909393B - Self-pretightening double-row angular contact ball bearing with large caliber - Google Patents
Self-pretightening double-row angular contact ball bearing with large caliber Download PDFInfo
- Publication number
- CN114909393B CN114909393B CN202210273560.9A CN202210273560A CN114909393B CN 114909393 B CN114909393 B CN 114909393B CN 202210273560 A CN202210273560 A CN 202210273560A CN 114909393 B CN114909393 B CN 114909393B
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- bearing
- ring
- rear end
- outer ring
- base
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- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000005461 lubrication Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 17
- 239000010687 lubricating oil Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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
- 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
- F16C19/181—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 with angular contact
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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
-
- 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
- F16C33/583—Details of specific parts of races
-
- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
-
- 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
- F16C35/061—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing mounting a plurality of bearings side by side
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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
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
Abstract
The invention provides a self-pretightening double-row angular contact ball bearing with large caliber, which relates to the technical field of double-row angular contact ball bearings with large caliber, and comprises the following components: the base is provided with two groups of waist-shaped grooves, and the lower end of the base is provided with two groups of square grooves; the lower bearing bush is arranged in the groove structure on the base; the bearings are provided with two groups and are respectively arranged at the front end and the rear end of the lower bearing bush; compared with the traditional bearing, the double-row angular contact ball bearing is provided with the retainer ring between the inner ring and the outer ring of the bearing, the retainer ring can seal the rolling bodies between the outer ring and the inner ring, can block external dust, prevent the dust from entering the bearing and affecting the service life of the bearing, and the rear end of the rotating shaft is provided with the ball and the locking sleeve, so that the connecting shaft can be quickly assembled and disassembled; the first locking cover is rotated to enable the rolling bodies to be in close contact with the inner ring and the outer ring of the bearing, namely, the gap between the inner ring and the outer ring of the bearing is reduced, so that the operation precision can be improved, and the operation noise can be reduced.
Description
Technical Field
The invention relates to the technical field of large-caliber double-row angular contact ball bearings, in particular to a self-pretightening large-caliber double-row angular contact ball bearing.
Background
Bearings are components that act to fix and reduce the coefficient of friction of a load during mechanical transmission, and can also be said to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed when other parts are moved relative to each other on the shaft. The bearing is a weight-bearing part in modern mechanical equipment. The double-row angular contact ball bearing is mainly used for supporting a mechanical rotating body and reducing the mechanical load friction coefficient of equipment in the transmission process, can bear radial and axial combined loads and moment loads mainly with larger radial loads, limits the axial displacement of two aspects of a shaft, and is mainly used for limiting components of the bidirectional axial displacement of the shaft and a shell.
However, after the existing bearing is used for a period of time, due to abrasion of the inner rolling bodies, a gap between an inner ring and an outer ring of the bearing becomes larger, so that the phenomenon that the running accuracy is reduced and the running noise is increased can occur when the bearing rotates, dust enters the existing bearing, abrasion of the rolling bodies can be increased, and the service life of the bearing can be shortened.
Disclosure of Invention
In view of the above, the present invention provides a self-pre-tightening double-row angular contact ball bearing, in which a first locking cap is mounted on a rotating shaft, and when the self-pre-tightening double-row angular contact ball bearing is in use, the first locking cap is rotated, at this time, the rotating shaft moves backward, a positioning shoulder at the front end of the rotating shaft applies a backward force to an inner ring of a front end bearing, then the force on an inner ring is transferred to an outer ring, and then transferred from the outer ring to an outer positioning sleeve, the outer positioning sleeve transfers the force to an outer ring of a rear end bearing, and finally the outer ring of the rear end bearing transfers the force to a base and a top cap, and by rotating the first locking cap, the rolling body and the inner ring and the outer ring of the bearing can be brought into close contact, and a certain elastic deformation is generated, namely, a gap between the inner ring and the outer ring of the bearing is reduced, thereby improving the operation accuracy and reducing operation noise.
The invention provides a self-pretightening large-caliber double-row angular contact ball bearing, which specifically comprises the following components: the base is provided with a groove structure, two groups of kidney-shaped grooves are formed in the base, the kidney-shaped grooves are positioned at the left end and the right end of the base, two groups of square grooves are formed in the lower end of the base, and through holes are formed in the upper parts of the square grooves; the lower bearing bush is arranged in the groove structure on the base, and the front end of the lower bearing bush is provided with threads; the bearing is equipped with two sets of, installs respectively at the front and back both ends of lower axle bush, and the bearing includes: an outer ring, an inner ring, rolling bodies and a retainer ring; the outer ring is arranged in the lower bearing bush, the inner ring is positioned in the outer ring, rolling bodies are arranged between the outer ring and the inner ring, and a retainer is arranged on the rolling bodies; the retaining ring is equipped with two sets of, and the retaining ring buckle is installed between outer lane and inner circle.
Optionally, the two sets of bearings are provided with a rotating shaft, the rotating shaft is provided with an inner positioning sleeve and an outer positioning sleeve, the inner positioning sleeve and the outer positioning sleeve are arranged between the two sets of bearings, the inner positioning sleeve is contacted with the inner rings of the two sets of bearings, and the outer positioning sleeve is contacted with the outer rings of the two sets of bearings.
Optionally, an upper bearing bush is installed at the upper end of the lower bearing bush, threads are arranged at the front end of the upper bearing bush, a through hole is formed in the upper bearing bush, and an oiling seat is fixed at the upper end of the through hole.
Optionally, the top cap is installed to the upper end of base, is equipped with two sets of through-holes on the top cap, installs square bolt in the square groove of base lower extreme, and square bolt's upper end inserts in the through-hole on the top cap to it is fixed through the nut, and be equipped with the lubrication hole on the top cap, install the oil cup on the lubrication hole.
Optionally, the oil cup includes: an oil storage seat, filter cotton and a sealing cover; the lower end of the oil storage seat is provided with a circular tube which is inserted into a lubricating hole on the top cover, and filter cotton is arranged in the oil storage seat; the sealing cover is screwed on the upper end of the oil storage seat.
Optionally, screw thread has screwed two sets of lugs on the top cap, and two sets of lugs diagonal distribution to install the rubber cushion between top cap and the base, install fixing bolt in the kidney slot on the base, install the spring on the fixing bolt.
Optionally, the front end of pivot is fixed with the locating key, and the rear end of locating key is fixed with solid fixed ring to the front end of pivot is equipped with the screw thread, and the band pulley is installed to the front end of pivot, is equipped with the draw-in groove on the band pulley, and the draw-in groove block is installed on the locating key, and the rear end and the solid fixed ring contact of band pulley, and the screw thread is screwed up on the screw thread of pivot front end has fixation nut, and the rear end of gu fixed ring is equipped with the location shaft shoulder, and the location shaft shoulder contacts with the inner circle of the bearing of lower axle bush front end.
Optionally, be equipped with the screw thread in the pivot, the screw thread is located the rear of the bearing of lower axle bush rear end to install locking lid No. one on the screw thread, no. one locking lid contacts with the inner circle of the bearing of lower axle bush rear end, and go up the axle bush and screw thread of lower axle bush front end and connect No. two locking lids, no. two locking lids contact with the outer lane of lower axle bush front end bearing.
Optionally, the connector is installed to the rear end bolt of pivot to install the filler between pivot and the connector, the locking sleeve is installed to the rear end of connector, and the locking sleeve passes through the fix with screw at the rear end of connector.
Optionally, the rear end of connector is equipped with the hole groove, installs the ball in the hole groove to the rear end of connector is equipped with the fixed slot, installs the snap ring in the fixed slot, and the connecting axle is installed to the rear end of connector, and the front end of connecting axle is fixed with the buckle circle, and the buckle circle passes through the ball buckle and installs the rear end at the connector.
Advantageous effects
According to the double-row angular contact ball bearing disclosed by the embodiment of the invention, compared with a traditional bearing, the retainer ring is arranged between the inner ring and the outer ring of the bearing, the retainer ring can seal the rolling bodies between the outer ring and the inner ring, can block external dust, prevent the dust from entering the bearing and affecting the service life of the bearing, and the rear end of the rotating shaft is provided with the ball and the locking sleeve, so that the connecting shaft can be quickly assembled and disassembled.
In addition, the first locking cover is arranged on the rotating shaft, when the first locking cover is rotated, the rotating shaft moves backwards at the moment, a positioning shaft shoulder at the front end of the rotating shaft can apply a backward force to the inner ring of the front end bearing, then the force on the inner ring is transferred to the outer ring and then transferred to the outer positioning sleeve from the outer ring, the outer positioning sleeve transfers the force to the outer ring of the rear end bearing, finally the outer ring of the rear end bearing transfers the force to the base and the top cover, the rolling body can be tightly contacted with the inner ring and the outer ring of the bearing through rotating the first locking cover, and certain elastic deformation is generated, namely, the gap between the inner ring and the outer ring of the bearing is reduced, so that the running precision is improved, and the running noise is reduced.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.
In the drawings:
FIG. 1 shows a schematic view of the overall structure of a double row angular contact ball bearing with self-pretension of large caliber according to an embodiment of the present invention;
FIG. 2 shows a schematic structural view of a rear end of a double row angular contact ball bearing with self-pretension of large caliber according to an embodiment of the present invention;
FIG. 3 shows a schematic view of the structure of the lower end of a base with a self-pre-tightening large-caliber double-row angular contact ball bearing according to an embodiment of the present invention;
FIG. 4 shows a schematic diagram of a disassembled structure of a double row angular contact ball bearing with self-pretension of large caliber according to an embodiment of the present invention;
FIG. 5 shows an enlarged schematic view of the structure at A in FIG. 4 with a self-preloaded large bore double row angular contact ball bearing in accordance with an embodiment of the present invention;
FIG. 6 shows a schematic structural view of an upper bearing shell with a self-pre-tightening large-caliber double-row angular contact ball bearing according to an embodiment of the present invention;
FIG. 7 shows a schematic diagram of a disassembled structure of an oil cup with a self-pre-tightening large caliber double row angular contact ball bearing according to an embodiment of the present invention;
fig. 8 shows a schematic structural view of a bearing with a self-preloaded large-bore double row angular contact ball bearing according to an embodiment of the present invention;
FIG. 9 shows a schematic structural view of an inner positioning sleeve with self-pre-tightening large-caliber double-row angular contact ball bearing according to an embodiment of the present invention;
fig. 10 shows a schematic structural view of a rear end of a rotating shaft with a self-pre-tightening large-caliber double-row angular contact ball bearing according to an embodiment of the present invention;
fig. 11 shows an enlarged schematic structural view at B in fig. 10 with a self-preloaded large-bore double row angular contact ball bearing according to an embodiment of the present invention.
List of reference numerals
1. A base; 101. a kidney-shaped groove; 102. a fixing bolt; 103. a spring; 104. a square groove; 1041. square bolts; 1042. a rubber cushion block; 2. a lower bearing bush; 3. a bearing; 301. an outer ring; 302. an inner ring; 303. a rolling element; 3031. a retainer; 304. a retainer ring; 4. a rotating shaft; 401. a positioning key; 402. a fixing ring; 403. positioning a shaft shoulder; 404. a first locking cover; 405. a second locking cover; 406. a belt wheel; 407. a fixing nut; 408. a connector; 4081. filling blocks; 4082. a locking sleeve; 4083. a ball; 4084. a clasp; 409. a snap ring; 410. a connecting shaft; 5. an inner positioning sleeve; 501. an outer positioning sleeve; 502. an upper bearing bush; 5021. an oiling seat; 6. a top cover; 601. lifting lugs; 602. a lubrication hole; 603. an oil cup; 6031. an oil storage seat; 6032. filtering cotton; 6033. sealing cover.
Detailed Description
In order to make the objects, aspects and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiment of the present invention. Unless otherwise indicated, terms used herein have the meaning common in the art. Like reference numerals in the drawings denote like parts.
Examples: please refer to fig. 1 to 11:
the invention provides a self-pretightening large-caliber double-row angular contact ball bearing, which comprises: the base 1 is provided with a groove structure, the base 1 is provided with two groups of kidney-shaped grooves 101, the kidney-shaped grooves 101 are positioned at the left end and the right end of the base 1, the lower end of the base 1 is provided with two groups of square grooves 104, and through holes are formed above the square grooves 104; the lower bearing bush 2 is arranged in a groove structure on the base 1, and the front end of the lower bearing bush 2 is provided with threads; bearing 3, bearing 3 are equipped with two sets of, install respectively at the front and back both ends of lower axle bush 2, and bearing 3 includes: outer race 301, inner race 302, rolling elements 303, and retainer ring 304; the outer ring 301 is arranged in the lower bearing bush 2, the inner ring 302 is positioned inside the outer ring 301, rolling bodies 303 are arranged between the outer ring 301 and the inner ring 302, and a retainer 3031 is arranged on the rolling bodies 303; the retaining ring 304 is provided with two groups, the retaining ring 304 is buckled and installed between the outer ring 301 and the inner ring 302, the rotating shaft 4 is installed on the two groups of bearings 3, the inner positioning sleeve 5 and the outer positioning sleeve 501 are installed on the rotating shaft 4, the inner positioning sleeve 5 and the outer positioning sleeve 501 are installed between the two groups of bearings 3, the inner positioning sleeve 5 is contacted with the inner rings 302 of the two groups of bearings 3, and the outer positioning sleeve 501 is contacted with the outer rings 301 of the two groups of bearings 3.
As shown in fig. 4, 6 and 7, the upper end of the lower bearing bush 2 is provided with an upper bearing bush 502, the front end of the upper bearing bush 502 is provided with threads, and the upper bearing bush 502 is provided with a through hole, the upper end of the through hole is fixed with an oiling seat 5021, the upper end of the base 1 is provided with a top cover 6, two groups of through holes are arranged on the top cover 6, a square bolt 1041 is arranged in a square groove 104 at the lower end of the base 1, the upper end of the square bolt 1041 is inserted into the through hole on the top cover 6 and is fixed by a nut, and the top cover 6 is provided with a lubrication hole 602, an oil cup 603 is arranged on the lubrication hole 602, and the oil cup 603 comprises: an oil storage seat 6031, filter cotton 6032 and a sealing cover 6033; the lower end of the oil storage seat 6031 is provided with a circular tube which is inserted into the lubrication hole 602 on the top cover 6, and the filter cotton 6032 is arranged in the oil storage seat 6031; the sealing cover 6033 is screwed on the upper end of the oil storage seat 6031, and the function of the sealing cover is as follows: pouring lubricating oil into the oil storage seat 6031, the fixed impurity in the lubricating oil can be filtered by the arrangement of the filter cotton 6032, and the impurity in the lubricating oil is prevented from entering the bearing 3 to affect the service life of the bearing 3.
As shown in fig. 4 and 5, two sets of lifting lugs 601 are screwed on the top cover 6, the two sets of lifting lugs 601 are distributed diagonally, and a rubber cushion 1042 is installed between the top cover 6 and the base 1, a fixing bolt 102 is installed in a kidney-shaped groove 101 on the base 1, and a spring 103 is installed on the fixing bolt 102, which has the functions of: the square bolt 1041 between the top cover 6 and the base 1 can elastically deform the rubber cushion 1042 after locking, thereby preventing the square bolt 1041 from loosening.
As shown in fig. 8 to 11, a positioning key 401 is fixed at the front end of a rotating shaft 4, a fixing ring 402 is fixed at the rear end of the positioning key 401, a first locking cap 404 is mounted on the front end of the rotating shaft 4, a belt pulley 406 is mounted on the front end of the rotating shaft 4, a clamping groove is formed in the belt pulley 406, the clamping groove is mounted on the positioning key 401 in a clamping manner, the rear end of the belt pulley 406 contacts with the fixing ring 402, a fixing nut 407 is screwed on the thread of the front end of the rotating shaft 4, a positioning shaft shoulder 403 is arranged at the rear end of the fixing ring 402, the positioning shaft shoulder 403 contacts with the inner ring 302 of the bearing 3 at the front end of the lower bearing bush 2, a thread is arranged on the rotating shaft 4, the thread is located behind the bearing 3 at the rear end of the lower bearing bush 2, a first locking cap 404 contacts with the inner ring 302 of the bearing 3 at the rear end of the lower bearing bush 2, a second locking cap 405 is screwed with the front end of the lower bearing bush 2, and the second locking cap 405 contacts with the outer ring 301 of the bearing 3 at the front end of the lower bearing 2, and the functions are as follows: the rolling bodies 303 can be tightly contacted with the inner ring 302 and the outer ring 301 of the bearing 3 by rotating the first locking cover 404, and certain elastic deformation is generated, namely, the gap between the inner ring 302 and the outer ring 301 of the bearing 3 is reduced, so that the running precision can be improved, and the running noise can be reduced; the connector 408 is installed to the rear end bolt of pivot 4 to install filler 4081 between pivot 4 and the connector 408, locking sleeve 4082 is installed to the rear end of connector 408, locking sleeve 4082 passes through the rear end of screw fixation at connector 408, the rear end of connector 408 is equipped with the hole groove, install ball 4083 in the hole groove, and the rear end of connector 408 is equipped with the fixed slot, install snap ring 4084 in the fixed slot, connecting axle 410 is installed to the rear end of connector 408, the front end of connecting axle 410 is fixed with buckle circle 409, buckle circle 409 passes through the rear end of ball 4083 buckle installation at connector 408, its effect is: loosening the screw on the locking sleeve 4082 allows it to be removed, thereby allowing for quick assembly and disassembly of the connecting shaft 410.
Furthermore, according to the embodiment of the present invention, the ventilation holes may be provided on the inner and outer positioning sleeves 5 and 501, and the heat generated by friction of the rolling elements 303 can be accelerated by the provision of the ventilation holes, thereby prolonging the service life of the bearing 3.
Specific use and action of the embodiment: in the invention, the first locking cover 404 is rotated, at this time, the rotating shaft 4 moves backward, the positioning shaft shoulder 403 at the front end of the rotating shaft 4 applies backward force to the inner ring 302 of the front end bearing 3, then the force on the inner ring 302 is transferred to the outer ring 301, and then the force is transferred from the outer ring 301 to the outer positioning sleeve 501, the outer positioning sleeve 501 transfers the force to the outer ring 301 of the rear end bearing 3, finally the outer ring 301 of the rear end bearing 3 transfers the force to the base 1 and the top cover 6, the rolling bodies 303 are tightly contacted with the inner ring 302 and the outer ring 301 of the bearing 3 by rotating the first locking cover 404, and certain elastic deformation is generated, namely, the gap between the inner ring 302 and the outer ring 301 of the bearing 3 is reduced, so that the operation precision is improved, the operation noise is reduced, lubricating oil is poured into the oil storage seat 6031, the fixed impurities in the lubricating oil are filtered by the arrangement of the filter cotton 6032, the impurities in the lubricating oil are prevented from entering the inside the bearing 3 to affect the service life of the bearing 3, the square bolt 1041 between the base 1 and the base 1 can enable the rubber cushion block 104to be tightly contacted with the inner ring 302, and the square bolt 1041 after the locking is locked, and the square bolt 1041 between the base 1 can be elastically deformed, and the rubber cushion block 1041 can be tightly contacted with the inner ring 302, and the outer ring is tightly deformed, and the screw is quickly removed, and the bolt is tightly fixed tightly, and the bolt is tightly fixed tightly by a fixed.
Finally, it should be noted that the present invention is generally described in terms of a/a pair of components, such as the location of each component and the mating relationship therebetween, however, those skilled in the art will appreciate that such location, mating relationship, etc. are equally applicable to other components/other pairs of components.
The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.
Claims (5)
1. A double row angular contact ball bearing with self-pretension and large caliber, comprising: the base (1) is provided with a groove structure, the base (1) is provided with two groups of kidney-shaped grooves (101), the kidney-shaped grooves (101) are positioned at the left end and the right end of the base (1), the lower end of the base (1) is provided with two groups of square grooves (104), and through holes are formed above the square grooves (104); the lower bearing bush (2) is arranged in a groove structure on the base (1), and threads are arranged at the front end of the lower bearing bush (2); the bearing (3), bearing (3) are equipped with two sets of, install respectively at the front and back both ends of lower axle bush (2), and bearing (3) include: an outer ring (301), an inner ring (302), rolling bodies (303) and a retainer ring (304); the outer ring (301) is arranged in the lower bearing bush (2), the inner ring (302) is positioned inside the outer ring (301), rolling bodies (303) are arranged between the outer ring (301) and the inner ring (302), and a retainer (3031) is arranged on the rolling bodies (303); the retainer ring (304) is provided with two groups, the retainer ring (304) is buckled and installed between the outer ring (301) and the inner ring (302), a rotating shaft (4) is installed on the two groups of bearings (3), threads are arranged on the rotating shaft (4), the threads are positioned behind the bearings (3) at the rear end of the lower bearing bush (2), a first locking cover (404) is installed on the threads, the first locking cover (404) is contacted with the inner ring (302) of the bearings (3) at the rear end of the lower bearing bush (2), a second locking cover (405) is screwed on the upper bearing bush (502) and the front end of the lower bearing bush (2), the second locking cover (405) is contacted with the outer ring (301) of the front end bearing (3) of the lower bearing bush (2), a connector (408) is installed on a rear end bolt of the rotating shaft (4), a filling block (4081) is installed between the rotating shaft (4) and the connector (408), a locking sleeve (4082) is installed at the rear end of the connector (408) through a screw, a hole groove is formed in the rear end of the connector (408), a ball groove (408) is formed in the rear end of the connector (408), and the ball groove (408) is installed in the rear end of the connector (408) and the ball groove (4082) is fixedly connected with the rear end groove (408), the front end of the connecting shaft (410) is fixedly provided with a clamping ring (409), the clamping ring (409) is clamped and installed at the rear end of the connecting head (408) through a ball (4083), the front end of the rotating shaft (4) is fixedly provided with a positioning key (401), the rear end of the positioning key (401) is fixedly provided with a fixed ring (402), the front end of the rotating shaft (4) is provided with threads, the front end of the rotating shaft (4) is provided with a belt wheel (406), the belt wheel (406) is provided with a clamping groove, the clamping groove is clamped and installed on the positioning key (401), the rear end of the belt wheel (406) is contacted with the fixed ring (402), the threads at the front end of the rotating shaft (4) are screwed with a fixed nut (407), the rear end of the fixed ring (402) is provided with a positioning shaft shoulder (403), the positioning shaft shoulder (403) is contacted with the inner ring (302) of the bearing (3) at the front end of the lower bearing bush (2), an inner positioning sleeve (5) and an outer positioning sleeve (501) are arranged on the rotating shaft (4), the inner positioning sleeve (5) and the outer positioning sleeve (501) are arranged between the two groups of bearings (3), the inner positioning sleeve (5) is contacted with the inner rings (302) of the two groups of bearings (3), the outer positioning sleeve (501) is contacted with the outer rings (301) of the two groups of bearings (3), the first locking cover (404) is rotated, at the moment, the rotating shaft (4) moves backwards, the positioning shaft shoulder (403) at the front end of the rotating shaft (4) can apply backward force to the inner ring (302) of the front end bearing (3), then the force on the inner ring (302) is transferred to the outer ring (301), then the force is transferred to the outer positioning sleeve (501) from the outer ring (301), the outer positioning sleeve (501) transfers the force to the outer ring (301) of the rear end bearing (3), finally the outer ring (301) of the rear end bearing (3) transfers the force to the base (1) and the top cover (6), the rolling body (303) can be tightly contacted with the inner ring (302) and the outer ring (301) of the bearing (3) through rotating the first locking cover (404), and certain elastic deformation is generated, namely, the gap between the inner ring (302) and the outer ring (301) of the bearing (3) is reduced, so that the running accuracy can be improved and the running noise can be reduced.
2. The self-pretightening double-row angular contact ball bearing with the large caliber according to claim 1, wherein an upper bearing bush (502) is installed at the upper end of the lower bearing bush (2), threads are arranged at the front end of the upper bearing bush (502), a through hole is arranged on the upper bearing bush (502), and an oiling seat (5021) is fixed at the upper end of the through hole.
3. The double-row angular contact ball bearing with the self-pre-tightening large caliber according to claim 1, wherein a top cover (6) is installed at the upper end of the base (1), two groups of through holes are formed in the top cover (6), square bolts (1041) are installed in square grooves (104) at the lower end of the base (1), the upper ends of the square bolts (1041) are inserted into the through holes in the top cover (6) and fixed through nuts, lubrication holes (602) are formed in the top cover (6), and oil cups (603) are installed on the lubrication holes (602).
4. A double row angular contact ball bearing with self pre-tightening large caliber according to claim 3, characterized in that said oil cup (603) comprises: an oil storage seat (6031), filter cotton (6032) and a sealing cover (6033); the lower end of the oil storage seat (6031) is provided with a circular tube which is inserted into a lubrication hole (602) on the top cover (6), and the filter cotton (6032) is arranged in the oil storage seat (6031); the sealing cover (6033) is screwed on the upper end of the oil storage seat (6031).
5. The double-row angular contact ball bearing with the self-pretightening large caliber according to claim 4, wherein two groups of lifting lugs (601) are screwed on the top cover (6), the two groups of lifting lugs (601) are distributed diagonally, a rubber cushion block (1042) is arranged between the top cover (6) and the base (1), a fixing bolt (102) is arranged in a kidney-shaped groove (101) on the base (1), and a spring (103) is arranged on the fixing bolt (102).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273560.9A CN114909393B (en) | 2022-03-19 | 2022-03-19 | Self-pretightening double-row angular contact ball bearing with large caliber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273560.9A CN114909393B (en) | 2022-03-19 | 2022-03-19 | Self-pretightening double-row angular contact ball bearing with large caliber |
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| CN114909393A CN114909393A (en) | 2022-08-16 |
| CN114909393B true CN114909393B (en) | 2024-01-09 |
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| CN202210273560.9A Active CN114909393B (en) | 2022-03-19 | 2022-03-19 | Self-pretightening double-row angular contact ball bearing with large caliber |
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| CN105570314A (en) * | 2014-04-12 | 2016-05-11 | 方义飞 | Engineering machine, dismounting-free bearing block with oil cavity capable of being cleaned and cleaning method for oil cavity |
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| CN205446423U (en) * | 2015-12-28 | 2016-08-10 | 左享兰 | Detachable bearing retainer of two bolt dustproof and waterproof grease lubrication |
| CN107339326A (en) * | 2017-05-27 | 2017-11-10 | 中国科学院上海技术物理研究所 | A kind of method for improving bearing with solid lubricant assembly life-span |
| CN207975124U (en) * | 2018-01-12 | 2018-10-16 | 东莞市奥斯特轴承有限公司 | A kind of noise cancelling type rolling bearing |
| CN208169335U (en) * | 2018-04-03 | 2018-11-30 | 成都天马铁路轴承有限公司 | A kind of rail traffic vehicles axle axle box double row tapered roller bearing |
| CN208651450U (en) * | 2018-08-14 | 2019-03-26 | 德尔玛轴承有限公司 | A kind of deep groove ball bearing component |
| CN209164401U (en) * | 2018-08-15 | 2019-07-26 | 淮安市宏骏机电有限公司 | A kind of machine bearing sealing device |
| CN209959726U (en) * | 2019-03-24 | 2020-01-17 | 杭州前进齿轮箱集团股份有限公司 | Marine intermediate shaft adopting split rolling bearing |
| CN211438198U (en) * | 2019-12-13 | 2020-09-08 | 洛阳王力重型机械有限公司 | Device for machining pin holes of crawler board of large-scale loader |
| CN211423193U (en) * | 2019-12-18 | 2020-09-04 | 江苏中奕和创智能科技有限公司 | Last enhancement bearing frame of diesel generator |
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| CN213776123U (en) * | 2020-11-27 | 2021-07-23 | 浙江物产中大电机铁芯制造有限公司 | Cast aluminum shaft of motor rotor |
| CN113483015A (en) * | 2021-07-05 | 2021-10-08 | 宣城职业技术学院 | High-sealing-performance bearing with good rotating effect |
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|---|---|
| CN114909393A (en) | 2022-08-16 |
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