CN112128234B - Double-row cylindrical roller bearing and working method thereof - Google Patents
Double-row cylindrical roller bearing and working method thereof Download PDFInfo
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- CN112128234B CN112128234B CN202011002094.8A CN202011002094A CN112128234B CN 112128234 B CN112128234 B CN 112128234B CN 202011002094 A CN202011002094 A CN 202011002094A CN 112128234 B CN112128234 B CN 112128234B
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- heat conduction
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- cylindrical roller
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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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
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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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
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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
- F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
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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
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a double-row cylindrical roller bearing and a working method thereof.A separation plate, a limiting column and a connecting clamping seat are arranged to be matched for use, so that the stability of a retainer can be effectively improved; the inner ring is tightly matched with the shaft through a plurality of fixing strips, the retainer is sleeved on the outer surface of the inner ring, and a plurality of isolation plates are turned over to the edge of the outer surface of the outer ring through the limiting columns; the heat conduction column, the first connection guide column, the second connection guide column, the first heat conduction groove, the second heat conduction groove and the third heat conduction groove are matched for use, so that the heat conduction effect of the double-row cylindrical roller bearing can be improved; the inner ring rotates to drive the first cylindrical rollers and the second cylindrical rollers to rotate, heat generated by rotation enters the second heat conduction groove, and heat in the third heat conduction groove is conducted through the heat conduction columns; the invention can solve the problems that the retainer cannot be limited, so that the stability of the retainer is poor, and the heat conductivity of the double-row cylindrical roller bearing is poor.
Description
Technical Field
The invention relates to the technical field of mechanical parts, in particular to a double-row cylindrical roller bearing and a working method thereof.
Background
The rollers adopted in the cylindrical roller bearing are arranged in parallel, and the spacing retainers or the spacing blocks are arranged between the rollers, so that the rollers can be prevented from inclining or rubbing against each other, and the increase of the rotating torque is effectively prevented; the cylindrical roller and the raceway are linear contact bearings, have high load capacity and mainly bear radial load; the friction between the rolling body and the flange of the ferrule is small, and the high-speed rotation is suitable; depending on whether the ring has a flange or not, single-row cylindrical roller bearings such as NU, NJ, NUP, N, NF, etc., and double-row cylindrical roller bearings such as NNU, NN, etc., may be classified. The bearing is a structure with a separable inner ring and an outer ring.
The inner ring and the outer ring of the cylindrical roller bearing without the flanges can move relatively in the axial direction, so the cylindrical roller bearing can be used as a free end bearing. The cylindrical roller bearing is characterized in that one side of the inner ring and one side of the outer ring are provided with double flanges, and the ring on the other side is provided with a single flange, so that the cylindrical roller bearing can bear axial load in one direction to a certain degree. Steel stamped cages or copper alloy lathed solid cages are commonly used. However, a retainer is partially formed of polyamide.
Patent publication No. CN106481667A discloses a double-row cylindrical roller bearing, which comprises an outer ring, an inner ring, a retainer and a sealing ring; the retainer is arranged between the outer ring and the inner ring, and two rows of rectangular through holes are formed in the retainer; a cylindrical roller is arranged in each through hole, and the sealing ring is positioned on the edge between the outer ring and the inner ring; the center of the inner surface of the outer ring and the center of the outer surface of the inner ring are respectively provided with a first groove and a fourth groove; a second groove and a third groove are respectively formed in the outer surface and the inner surface of the retainer; a plurality of balls I are filled between the second groove and the first groove, and a plurality of balls II are filled between the third groove and the fourth groove. According to the invention, the balls are additionally arranged between the two rows of rollers, so that the lubricant is effectively prevented from being accumulated between the two rows of rollers, the lubricant is fully utilized, other parts of the rollers are fully lubricated, the period of lubricant supplement is prolonged, the frequency of lubricant supplement is reduced, the lubricant is saved, and the maintenance cost of equipment is reduced. The existing defects include: the retainer cannot be limited, so that the problem of poor stability of the retainer and the problem of poor heat conductivity of the double-row cylindrical roller bearing are caused.
Disclosure of Invention
The invention aims to provide a double-row cylindrical roller bearing and a working method thereof; the problems to be solved include:
how to solve the problem of poor stability of the retainer; the stability of the retainer can be effectively improved by the matching use of the arranged isolation plate, the limiting column and the connecting clamping seat; the inner ring is tightly matched with the shaft through a plurality of fixing strips, the retainer is sleeved on the outer surface of the inner ring, the second heat conduction groove is positioned right above the third heat conduction groove, when the outer ring is sleeved on the outer surface of the retainer, the plurality of isolation plates are overturned towards the edge of the outer surface of the outer ring through the limiting column, the plurality of first limiting plates and the plurality of second limiting plates which are vertically arranged with the limiting column are contacted with the outer surface of the outer ring, so that the limiting column stops overturning, then the outer ring is moved towards the retainer, and the outer ring is sleeved on the outer surface of the retainer; cup joint fixed back with outer lane and holder, with the upset of a plurality of division board through spacing post to the surface center department of outer lane for the surface of a plurality of division board and outer lane is in same horizontal position, avoids the holder to follow one side roll-off of outer lane, has solved and can not carry on spacingly to the holder among the current scheme, and then has leaded to the not good problem of stability of holder.
How to solve the problem of poor heat conductivity of the double-row cylindrical roller bearing; the heat conduction effect of the double-row cylindrical roller bearing can be improved by matching the arranged heat conduction column, the first connection guide column, the second connection guide column, the first heat conduction groove, the second heat conduction groove and the third heat conduction groove; the axle drives the inner circle and rotates when rotating, the inner circle rotates and drives the first cylinder roll of a plurality of and the second cylinder roll rotates, the heat that the rotation produced gets into to the second heat-conducting groove, convey to the third heat-conducting groove through the second heat-conducting groove, conduct the heat in the third heat-conducting groove through the heat-conducting post, make the heat conduct and discharge in the first heat-conducting groove through the heat-conducting post, the inside of first connection guide pillar and second connection guide pillar all is provided with the heat conduction hole, first connection guide pillar and second connection guide pillar play the effect of connecting the heat-conducting post and the effect of heat conduction, the not good problem of heat conductivity of double-row cylindrical roller bearing in the current scheme has been solved.
The purpose of the invention can be realized by the following technical scheme:
a double-row cylindrical roller bearing comprises an outer ring, a retainer, an inner ring, a first cylindrical roller body and a second cylindrical roller body, wherein the first cylindrical roller bodies and the second cylindrical roller bodies are arranged on the outer surface of the retainer, the first cylindrical roller bodies and the second cylindrical roller bodies are distributed on the retainer in a staggered arrangement mode, the second cylindrical roller body is located behind the first cylindrical roller body, the retainer is arranged between the outer ring and the inner ring, the inner ring is connected inside the outer ring, a first heat conduction groove is formed in the position, close to the front, of the outer surface of the inner ring, and a limiting structure is arranged in the position, close to the rear, of the outer surface of the outer ring;
the limiting structure comprises a plurality of isolation plates, limiting columns and connecting clamping seats, the limiting columns penetrate through the connecting clamping seats, and the isolation plates are arranged on the outer surfaces of the limiting columns and close to the middle of the outer surfaces of the limiting columns;
the inner ring is provided with a plurality of heat-conducting columns, a first connecting guide column and a second connecting guide column are fixedly connected between the plurality of heat-conducting columns and the inner ring, and the second connecting guide column is positioned behind the first connecting guide column.
As a further improvement of the invention: the heat conduction post is L font, the inside of first connecting guide pillar and second connecting guide pillar all is provided with the heat conduction hole, the lower extreme of heat conduction post runs through to the inside of first heat-conducting groove, a plurality of first cylinder rolls the body and the second cylinder rolls the body all to be connected with the holder rotation.
As a further improvement of the invention: a plurality of the division board is equidistant range distribution in the rear end of outer lane, the spacing ring is installed near middle position to the front end of division board, the spacing ring splices fixedly with the division board, spacing post rotates with the connection holder to be connected, the division board rotates with the connection holder through spacing post to be connected.
As a further improvement of the invention: first limiting plate and second limiting plate are installed perpendicularly to the surface of spacing post near the position of top, first limiting plate is located one side of second limiting plate, the surface of spacing post is close to the fixed position of one side and installs first isolating ring and third isolating ring, the third isolating ring is located the position that the outside of spacing post is close to one end, the surface of spacing post is close to the fixed position of opposite side and installs second isolating ring and fourth isolating ring, the position that the outside that the fourth isolating ring is located the spacing post is close to the other end.
As a further improvement of the invention: the lower end of the connecting clamp holder is fixedly provided with a connecting plate, and the outer surface of the connecting clamp holder is provided with a connecting ring at a position close to the middle.
As a further improvement of the invention: and a third heat conduction groove is formed in the position, close to the middle, of the outer surface of the inner ring, is positioned right below the second heat conduction groove, and the upper end of the heat conduction column penetrates through the inside of the third heat conduction groove.
As a further improvement of the invention: the inner surface of the inner ring is provided with a plurality of fixing strips close to the middle, the fixing strips are fixedly connected with the inner ring in an adhesive mode, and the retainer and the inner ring are fixedly connected with the outer ring in an abutting mode.
A working method of a double-row cylindrical roller bearing comprises the following steps:
the method comprises the following steps: the inner ring is tightly matched with the shaft through a plurality of fixing strips, the retainer is sleeved on the outer surface of the inner ring, the second heat conduction groove is positioned right above the third heat conduction groove, when the outer ring is sleeved on the outer surface of the retainer, the plurality of isolation plates are overturned towards the edge of the outer surface of the outer ring through the limiting column, the plurality of first limiting plates and the plurality of second limiting plates which are vertically arranged with the limiting column are contacted with the outer surface of the outer ring, so that the limiting column stops overturning, then the outer ring is moved towards the retainer, and the outer ring is sleeved on the outer surface of the retainer;
step two: after the outer ring and the retainer are fixedly sleeved, the plurality of isolation plates are overturned towards the center of the outer surface of the outer ring through the limiting columns, so that the plurality of isolation plates and the outer surface of the outer ring are in the same horizontal position;
step three: the shaft drives the inner ring to rotate when rotating, the inner ring rotates to drive the first cylindrical rollers and the second cylindrical rollers to rotate, heat generated by rotation enters the second heat conduction groove, is transmitted to the third heat conduction groove through the second heat conduction groove, and is conducted through the heat conduction columns to the first heat conduction groove and then is discharged.
One beneficial effect brought by one aspect of the invention is as follows:
the stability of the retainer can be effectively improved by the matching use of the arranged isolation plate, the limiting column and the connecting clamping seat; the inner ring is tightly matched with the shaft through a plurality of fixing strips, the retainer is sleeved on the outer surface of the inner ring, the second heat conduction groove is positioned right above the third heat conduction groove, when the outer ring is sleeved on the outer surface of the retainer, the plurality of isolation plates are overturned towards the edge of the outer surface of the outer ring through the limiting column, the plurality of first limiting plates and the plurality of second limiting plates which are vertically arranged with the limiting column are contacted with the outer surface of the outer ring, so that the limiting column stops overturning, then the outer ring is moved towards the retainer, and the outer ring is sleeved on the outer surface of the retainer; cup joint fixed back with outer lane and holder, with the upset of a plurality of division board through spacing post to the surface center department of outer lane for the surface of a plurality of division board and outer lane is in same horizontal position, avoids the holder to follow one side roll-off of outer lane, has solved and can not carry on spacingly to the holder among the current scheme, and then has leaded to the not good problem of stability of holder.
The invention also discloses another aspect brings the following beneficial effects:
the heat conduction effect of the double-row cylindrical roller bearing can be improved by matching the arranged heat conduction column, the first connection guide column, the second connection guide column, the first heat conduction groove, the second heat conduction groove and the third heat conduction groove; the axle drives the inner circle and rotates when rotating, the inner circle rotates and drives the first cylinder roll of a plurality of and the second cylinder roll rotates, the heat that the rotation produced gets into to the second heat-conducting groove, convey to the third heat-conducting groove through the second heat-conducting groove, conduct the heat in the third heat-conducting groove through the heat-conducting post, make the heat conduct and discharge in the first heat-conducting groove through the heat-conducting post, the inside of first connection guide pillar and second connection guide pillar all is provided with the heat conduction hole, first connection guide pillar and second connection guide pillar play the effect of connecting the heat-conducting post and the effect of heat conduction, the not good problem of heat conductivity of double-row cylindrical roller bearing in the current scheme has been solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a double-row cylindrical roller bearing according to the present invention;
FIG. 2 is a view showing the connection structure between the outer ring and the retainer according to the present invention;
FIG. 3 is a rear cross-sectional view of the outer race of the present invention;
FIG. 4 is a connection structure diagram of the spacing column with the first spacing plate and the second spacing plate according to the present invention;
FIG. 5 is a sectional view of the connection between the connecting holder and the connecting plate according to the present invention;
FIG. 6 is a sectional view of the spacer plate and the retainer ring according to the present invention;
fig. 7 is a sectional view showing the connection of the heat conductive post with the first connecting guide post and the second connecting guide post according to the present invention.
In the figure: 1. an outer ring; 2. a holder; 3. an inner ring; 4. a first heat conduction groove; 5. a fixing strip; 6. a first cylindrical roller body; 7. a second cylindrical roller body; 8. a second heat conduction groove; 9. a separator plate; 10. a limiting column; 11. connecting the clamping seat; 12. a first limit plate; 13. a second limiting plate; 14. a first spacer ring; 15. a second isolation ring; 16. a third isolating ring; 17. a fourth isolating ring; 18. a connecting ring; 19. a connecting plate; 20. a limiting ring; 21. a heat-conducting column; 22. a first connecting guide post; 23. and the second connecting guide pillar.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, a double-row cylindrical roller bearing includes an outer ring 1, a holder 2, an inner ring 3, first cylindrical rollers 6 and second cylindrical rollers 7, wherein a plurality of the first cylindrical rollers 6 and the second cylindrical rollers 7 are both mounted on an outer surface of the holder 2, a plurality of the first cylindrical rollers 6 and the second cylindrical rollers 7 are distributed on the holder 2 in a staggered arrangement, the second cylindrical rollers 7 are located behind the first cylindrical rollers 6, the holder 2 is mounted between the outer ring 1 and the inner ring 3, the inner ring 3 is connected inside the outer ring 1, a first heat-conducting groove 4 is disposed on an outer surface of the inner ring 3 near the front, and a limiting structure is mounted on an outer surface of the outer ring 1 near the rear;
the limiting structure comprises a plurality of isolation plates 9, limiting columns 10 and connecting clamping seats 11, wherein the limiting columns 10 penetrate through the connecting clamping seats 11, and the isolation plates 9 are arranged on the outer surfaces of the limiting columns 10 close to the middle;
a second heat conduction groove 8 is formed in the position, close to the middle, of the upper end of the retainer 2, a plurality of heat conduction columns 21 are installed inside the inner ring 3, a first connecting guide column 22 and a second connecting guide column 23 are fixedly connected between the plurality of heat conduction columns 21 and the inner ring 3, and the second connecting guide column 23 is located behind the first connecting guide column 22.
The heat conduction column 21 is L-shaped, heat conduction holes are formed in the first connection guide column 22 and the second connection guide column 23, the lower end of the heat conduction column 21 penetrates through the first heat conduction groove 4, the first cylindrical roller 6 and the second cylindrical roller 7 are rotatably connected with the retainer 2, and the first connection guide column 22 and the second connection guide column 23 play roles in connecting the heat conduction column 21 and conducting heat.
A plurality of division board 9 is equidistant range distribution at the rear end of outer lane 1, spacing ring 20 is installed near the position in the middle of division board 9's front end, spacing ring 20 splices fixedly with division board 9, spacing post 10 rotates with connection holder 11 to be connected, division board 9 rotates with connection holder 11 through spacing post 10 to be connected, overturns a plurality of division board 9 to the surface edge of outer lane 1 through spacing post 10, all contacts with the surface of outer lane 1 through first limiting plate 12 and the second limiting plate 13 of a plurality of and the perpendicular installation of spacing post 10 for spacing post 10 stops the upset, can carry on spacingly to holder 2 through a plurality of division board 9.
First limiting plate 12 and second limiting plate 13 are installed perpendicularly to the position that the surface of spacing post 10 is close to the top, first limiting plate 12 is located one side of second limiting plate 13, the position fixed mounting that the surface of spacing post 10 is close to one side has first isolating ring 14 and third isolating ring 16, third isolating ring 16 is located the position that the outside of spacing post 10 is close to one end, the position fixed mounting that the surface of spacing post 10 is close to the opposite side has second isolating ring 15 and fourth isolating ring 17, fourth isolating ring 17 is located the position that the outside of spacing post 10 is close to the other end.
The lower end of the connecting clamp holder 11 is fixedly provided with a connecting plate 19, and the outer surface of the connecting clamp holder 11 is provided with a connecting ring 18 at a position close to the middle.
The position that the surface of inner circle 3 is close to the centre is provided with the third heat conduction groove, and the third heat conduction groove is located second heat conduction 8 under, the inside to the third heat conduction groove is run through to the upper end of heat conduction post 21, and inner circle 3 rotates and drives a plurality of first cylinder roller 6 and second cylinder roller 7 and rotate, and the heat that the rotation produced gets into to second heat conduction 8 in, conveys to the third heat conduction groove through second heat conduction 8, conducts the heat in the third heat conduction groove through heat conduction post 21 for the heat conducts to first heat conduction 4 in and discharges through heat conduction post 21, avoids the heat to cause the influence to the work of bearing.
The inner surface of the inner ring 3 is provided with a plurality of fixing strips 5 at positions close to the middle, the plurality of fixing strips 5 are fixedly connected with the inner ring 3 in a gluing mode, and the retainer 2 and the inner ring 3 are fixedly connected with the outer ring 1 in an abutting mode.
A working method of a double-row cylindrical roller bearing comprises the following steps:
the method comprises the following steps: tightly matching an inner ring 3 with a shaft through a plurality of fixing strips 5, sleeving a retainer 2 on the outer surface of the inner ring 3, positioning a second heat conduction groove 8 right above a third heat conduction groove, overturning a plurality of isolation plates 9 to the edge of the outer surface of the outer ring 1 through a limiting column 10 when the outer ring 1 is sleeved on the outer surface of the retainer 2, and enabling the limiting column 10 to stop overturning through contact of a plurality of first limiting plates 12 and second limiting plates 13 which are vertically arranged with the limiting column 10 with the outer surface of the outer ring 1, then moving the outer ring 1 to the retainer 2, and enabling the outer ring 1 to be sleeved on the outer surface of the retainer 2;
step two: after the outer ring 1 and the retainer 2 are fixedly sleeved, the plurality of isolation plates 9 are turned over to the center of the outer surface of the outer ring 1 through the limiting columns 10, so that the plurality of isolation plates 9 and the outer surface of the outer ring 1 are in the same horizontal position;
step three: the axle drives the inner circle 3 and rotates when rotating, and the inner circle 3 rotates and drives a plurality of first cylinder roller 6 and second cylinder roller 7 and rotate, and the heat that the rotation produced gets into to second heat-conducting groove 8 in, conveys to the third heat-conducting groove through second heat-conducting groove 8, conducts the heat in the third heat-conducting groove through heat-conducting post 21 for the heat conducts to first heat-conducting groove 4 and discharges through heat-conducting post 21.
The working principle of the embodiment of the invention is as follows: the inner ring 3 is tightly matched with a shaft through a plurality of fixing strips 5, the shaft plays a role of driving a bearing, the plurality of fixing strips 5 play fixing and connecting roles, the retainer 2 is sleeved on the outer surface of the inner ring 3, the second heat conduction groove 8 is positioned right above the third heat conduction groove, the second heat conduction groove 8 and the third heat conduction groove are convenient for conducting heat generated by friction, and the influence of the heat on the work of the bearing is avoided, when the outer ring 1 is sleeved on the outer surface of the retainer 2, the plurality of isolation plates 9 are overturned towards the edge of the outer surface of the outer ring 1 through the limiting column 10, and the plurality of first limiting plates 12 and the plurality of second limiting plates 13 which are vertically arranged with the limiting column 10 are in contact with the outer surface of the outer ring 1, so that the limiting column 10 stops overturning, then the outer ring 1 moves towards the retainer 2, and the outer ring 1 is sleeved on the outer surface of the retainer 2;
after the outer ring 1 and the retainer 2 are fixedly sleeved, the plurality of isolation plates 9 are turned to the center of the outer surface of the outer ring 1 through the limiting columns 10, so that the plurality of isolation plates 9 and the outer surface of the outer ring 1 are in the same horizontal position, the plurality of isolation plates 9 can limit the retainer 2, and the stability of the retainer 2 in the outer ring 1 can be improved;
the shaft drives the inner ring 3 to rotate when rotating, the first cylindrical rollers 6 and the second cylindrical rollers 7 are rotatably connected with the retainer 2, the inner ring 3 drives the first cylindrical rollers 6 and the second cylindrical rollers 7 to rotate, heat generated by rotation enters the second heat conduction groove 8 and is transmitted to the third heat conduction groove through the second heat conduction groove 8, and the heat in the third heat conduction groove is conducted through the heat conduction column 21, so that the heat is conducted to the first heat conduction groove 4 through the heat conduction column 21 and is discharged, and the influence of the heat on the work of the bearing can be effectively reduced;
compared with the prior art, the stability of the retainer 2 can be effectively improved by the matching use of the arranged isolation plate 9, the limiting column 10 and the connecting clamp holder 11; tightly matching an inner ring 3 with a shaft through a plurality of fixing strips 5, sleeving a retainer 2 on the outer surface of the inner ring 3, positioning a second heat conduction groove 8 right above a third heat conduction groove, overturning a plurality of isolation plates 9 to the edge of the outer surface of the outer ring 1 through a limiting column 10 when the outer ring 1 is sleeved on the outer surface of the retainer 2, and enabling the limiting column 10 to stop overturning through contact of a plurality of first limiting plates 12 and second limiting plates 13 which are vertically arranged with the limiting column 10 with the outer surface of the outer ring 1, then moving the outer ring 1 to the retainer 2, and enabling the outer ring 1 to be sleeved on the outer surface of the retainer 2; after the outer ring 1 and the retainer 2 are fixedly sleeved, the plurality of isolation plates 9 are turned over to the center of the outer surface of the outer ring 1 through the limiting columns 10, so that the plurality of isolation plates 9 and the outer surface of the outer ring 1 are positioned at the same horizontal position, the retainer 2 is prevented from sliding out of one side of the outer ring 1, and the problem that the retainer 2 cannot be limited in the existing scheme, and further the stability of the retainer 2 is poor is solved;
the heat conduction effect of the double-row cylindrical roller bearing can be improved by matching the arranged heat conduction column 21, the first connecting guide column 22, the second connecting guide column 23, the first heat conduction groove 4, the second heat conduction groove 8 and the third heat conduction groove; the shaft drives the inner ring 3 to rotate when rotating, the inner ring 3 drives a plurality of first cylindrical rollers 6 and second cylindrical rollers 7 to rotate, heat generated by rotation enters a second heat conducting groove 8, the heat is transmitted to the third heat conduction groove through the second heat conduction groove 8, the heat in the third heat conduction groove is conducted through the heat conduction column 21, make the heat conduct and discharge in first heat-conducting groove 4 through heat conduction post 21, the material of heat conduction post 21 is the diamond, heat conduction post 21 is the L font, heat conduction post 21 is through first connecting guide pillar 22 and the inside of second connecting guide pillar 23 fixed connection at inner circle 3, the inside of first connecting guide pillar 22 and second connecting guide pillar 23 all is provided with the heat conduction hole, first connecting guide pillar 22 and second connecting guide pillar 23 play the effect of connecting heat conduction post 21 and the effect of heat conduction, the problem of the not good heat conductivity of double-row cylindrical roller bearing in the prior art scheme has been solved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A double-row cylindrical roller bearing is characterized by comprising an outer ring (1), a retainer (2), an inner ring (3), a first cylindrical roller body (6) and a second cylindrical roller body (7), wherein a plurality of the first cylindrical roller bodies (6) and the second cylindrical roller bodies (7) are arranged on the outer surface of the retainer (2), a plurality of the first cylindrical roller bodies (6) and the second cylindrical roller bodies (7) are distributed on the retainer (2) in a crossed arrangement manner, the second cylindrical roller (7) is positioned behind the first cylindrical roller (6), the retainer (2) is arranged between the outer ring (1) and the inner ring (3), the inner ring (3) is connected inside the outer ring (1), a first heat conduction groove (4) is formed in the position, close to the front, of the outer surface of the inner ring (3), and a limiting structure is installed in the position, close to the rear, of the outer surface of the outer ring (1);
the limiting structure comprises a plurality of isolation plates (9), limiting columns (10) and connecting clamping seats (11), the limiting columns (10) penetrate through the connecting clamping seats (11), and the isolation plates (9) are arranged on the outer surfaces of the limiting columns (10) close to the middle;
the isolation plates (9) are arranged at the rear end of the outer ring (1) at equal intervals, the front ends of the isolation plates (9) are provided with limit rings (20) close to the middle, the limit rings (20) are fixedly connected with the isolation plates (9) in a gluing mode, the limit columns (10) are rotatably connected with the connecting clamp seats (11), and the isolation plates (9) are rotatably connected with the connecting clamp seats (11) through the limit columns (10);
the heat-conducting structure is characterized in that a second heat-conducting groove (8) is formed in the position, close to the middle, of the upper end of the retainer (2), a plurality of heat-conducting columns (21) are mounted inside the inner ring (3), a first connecting guide column (22) and a second connecting guide column (23) are fixedly connected between the plurality of heat-conducting columns (21) and the inner ring (3), and the second connecting guide column (23) is located behind the first connecting guide column (22).
2. The double-row cylindrical roller bearing according to claim 1, wherein the heat-conducting columns (21) are L-shaped, the first connecting guide columns (22) and the second connecting guide columns (23) are provided with heat-conducting holes inside, the lower ends of the heat-conducting columns (21) penetrate through the inside of the first heat-conducting grooves (4), and a plurality of first cylindrical rollers (6) and second cylindrical rollers (7) are rotatably connected with the retainer (2).
3. The double-row cylindrical roller bearing according to claim 1, wherein a first limiting plate (12) and a second limiting plate (13) are vertically installed at a position, close to the upper side, of the outer surface of the limiting column (10), the first limiting plate (12) is located at one side of the second limiting plate (13), a first isolating ring (14) and a third isolating ring (16) are fixedly installed at a position, close to one side, of the outer surface of the limiting column (10), the third isolating ring (16) is located at a position, close to one end, of the outermost side of the limiting column (10), a second isolating ring (15) and a fourth isolating ring (17) are fixedly installed at a position, close to the other end, of the outer surface of the limiting column (10), and the fourth isolating ring (17) is located at a position, close to the other end, of the outermost side of the limiting column (10).
4. The double-row cylindrical roller bearing according to claim 1, characterized in that a connecting plate (19) is fixedly mounted at the lower end of the connecting clamp holder (11), and a connecting ring (18) is arranged on the outer surface of the connecting clamp holder (11) near the middle.
5. The double-row cylindrical roller bearing according to claim 1, wherein a third heat conduction groove is formed in the outer surface of the inner ring (3) near the middle, the third heat conduction groove is located right below the second heat conduction groove (8), and the upper end of the heat conduction column (21) penetrates into the third heat conduction groove.
6. The double-row cylindrical roller bearing according to claim 1, characterized in that a plurality of fixing strips (5) are arranged on the inner surface of the inner ring (3) near the middle, the plurality of fixing strips (5) are fixed to the inner ring (3) in a glued manner, and the cage (2) and the inner ring (3) are fixed to the outer ring (1) in an abutting manner.
7. The working method of the double-row cylindrical roller bearing is characterized by comprising the following steps:
the method comprises the following steps: tightly matching the inner ring (3) with the shaft through a plurality of fixing strips (5), sleeving the retainer (2) on the outer surface of the inner ring (3), positioning the second heat conduction groove (8) right above the third heat conduction groove, overturning a plurality of isolation plates (9) to the edge of the outer surface of the outer ring (1) through a limiting column (10) when the outer ring (1) is sleeved on the outer surface of the retainer (2), and contacting the outer surface of the outer ring (1) through a plurality of first limiting plates (12) and second limiting plates (13) which are vertically arranged with the limiting column (10) to stop overturning the limiting column (10), then moving the outer ring (1) to the retainer (2), and sleeving the outer ring (1) on the outer surface of the retainer (2);
step two: after the outer ring (1) and the retainer (2) are fixedly sleeved, the plurality of isolation plates (9) are turned over to the center of the outer surface of the outer ring (1) through the limiting columns (10), so that the plurality of isolation plates (9) and the outer surface of the outer ring (1) are in the same horizontal position;
step three: the axle drives inner circle (3) and rotates when rotating, and inner circle (3) rotate and drive the first cylinder of a plurality of and roll body (6) and second cylinder and roll body (7) and rotate, and the heat that the rotation produced gets into in second heat-conducting groove (8), conveys to the third heat-conducting groove through second heat-conducting groove (8), conducts the heat in the third heat-conducting groove through heat-conducting post (21), makes the heat conduct and discharge in first heat-conducting groove (4) through heat-conducting post (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011002094.8A CN112128234B (en) | 2020-09-22 | 2020-09-22 | Double-row cylindrical roller bearing and working method thereof |
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| CN202011002094.8A CN112128234B (en) | 2020-09-22 | 2020-09-22 | Double-row cylindrical roller bearing and working method thereof |
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| CN112128234A CN112128234A (en) | 2020-12-25 |
| CN112128234B true CN112128234B (en) | 2021-11-26 |
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