CN114183461B - Thrust tapered roller bearing - Google Patents
Thrust tapered roller bearing Download PDFInfo
- Publication number
- CN114183461B CN114183461B CN202111193589.8A CN202111193589A CN114183461B CN 114183461 B CN114183461 B CN 114183461B CN 202111193589 A CN202111193589 A CN 202111193589A CN 114183461 B CN114183461 B CN 114183461B
- Authority
- CN
- China
- Prior art keywords
- peripheral wall
- inner peripheral
- seat
- lower seat
- upper seat
- 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.)
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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
- F16C19/22—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
- F16C19/30—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 axial load mainly
- F16C19/32—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 axial load mainly for supporting the end face of a shaft or other member, e.g. footstep 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
- F16C33/30—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
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
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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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6629—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a thrust tapered roller bearing which comprises an upper seat and a lower seat, wherein the upper seat and the lower seat are coaxially arranged, shaft holes are formed in the centers of the upper seat and the lower seat in a penetrating way, the inner peripheral wall of the upper seat and the inner peripheral wall of the lower seat are oppositely arranged, a plurality of limiting blocks are distributed on the inner peripheral wall of the upper seat and the inner peripheral wall of the lower seat, a first inclined surface is connected between the left side wall of each limiting block on the upper seat and the inner peripheral wall of the upper seat, a second inclined surface is connected between the right side wall of each limiting block on the lower seat and the inner peripheral wall of the lower seat, each first inclined surface is in one-to-one correspondence with each second inclined surface, rollaway paths are formed by combining each first inclined surface with the corresponding second inclined surface, rollers are arranged in each rollaway path, and the transverse section of each rollaway path is the same and is in a fan shape. The invention solves the problem that a planar thrust bearing which can bear high axial load and can be matched with external parts to perform linear propulsion or reciprocating motion is lacking in the prior art.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a tapered roller thrust bearing.
Background
Planar thrust roller bearings are widely used in applications that are subject to axial loads, and ball screws are widely used in motor drives with their unique feature of converting rotational motion into linear motion. The planar thrust bearing in the prior art is either high in axial load resistance or high in linear feeding efficiency, and the planar thrust bearing which can bear high axial load and can be matched with external parts to perform linear propulsion and reciprocating motion is lacking in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tapered roller thrust bearing, which aims to solve the problem that a planar thrust bearing which can bear high axial load and can be matched with external parts to perform linear propulsion or reciprocating motion is lacking in the prior art.
In order to achieve the above purpose, the invention provides a thrust tapered roller bearing, which comprises an upper seat and a lower seat, wherein the upper seat and the lower seat are coaxially arranged, shaft holes are formed in the centers of the upper seat and the lower seat in a penetrating manner, the inner peripheral wall of the upper seat and the inner peripheral wall of the lower seat are oppositely arranged, a plurality of limiting blocks are circumferentially distributed on the inner peripheral wall of the upper seat and the inner peripheral wall of the lower seat along the respective shaft holes, the limiting blocks on the upper seat are in one-to-one correspondence and are arranged in a staggered manner, a gap is reserved between each limiting block and an adjacent limiting block, a first inclined surface is connected between the left side wall of each limiting block on the upper seat and the inner peripheral wall of the upper seat, a second inclined surface is connected between the right side wall of each limiting block on the lower seat and the inner peripheral wall of the lower seat, each first inclined surface is in one-to-one correspondence with each second inclined surface, a roller path is formed by combining each first inclined surface with the corresponding second inclined surface, and each roller path is arranged in a rolling manner.
The technical scheme is beneficial in that: the lower seat is defined as a semi-fixed state, when the upper seat bears load and rotates anticlockwise at a certain rotation speed, the roller slides on the second inclined surface due to the pushing of the first inclined surface, when the roller slides to the lowest position of the second inclined surface, the local peripheral wall of the roller contacts with the left side wall of a close limiting block on the lower seat, the roller is limited by the limiting block and cannot continue rolling, the upper seat still rotates anticlockwise, when the roller slides to the lowest position of the second inclined surface, the roller just contacts with the lowest position of the first inclined surface, the local peripheral wall of the roller contacts with the right side wall of the close limiting block on the upper seat, so that the roller is limited by the right side wall of the limiting block on the upper seat, when the upper seat continues rotating anticlockwise, the right side wall of the limiting block on the upper seat pushes the roller, and the roller bears the pushing force and transmits the pushing force to the close limiting block on the lower seat, and the limiting block on the lower seat bears the pushing force and drives the lower seat to rotate; the operation flow is the operation process of each roller path, because the transverse section of each roller path is the same and is in a fan-shaped arrangement, each roller path consists of a first inclined plane and a second inclined plane which are equal, so that the operation process in each roller path is synchronously carried out, the inner peripheral wall of the upper seat and the inner peripheral wall of the lower seat are oppositely arranged, each first inclined plane is arranged in one-to-one correspondence with each second inclined plane, and the inclined direction of each first inclined plane is consistent with the inclined direction of the corresponding second inclined plane, therefore, the roller path for roller rolling can be formed, and the rollers in each roller path are limited by a limiting block and cannot enter the adjacent roller path; when the upper seat rotates clockwise, the first inclined surface can push the roller to roll on the second inclined surface, so that the roller can roll to the highest position of the first inclined surface and the highest position of the second inclined surface, namely, the aim of resetting the roller in the roller path is fulfilled, the lower seat can be driven to rotate when the upper seat rotates anticlockwise next time, the whole anticlockwise and clockwise operation processes are combined to form reciprocating motion, at the moment, the device can cooperate with external parts to achieve the functions of linear propulsion and reciprocating motion, meanwhile, the arrangement of the first inclined surface and the second inclined surface can enable the roller not to slip in the rolling process, the axial load resistance of the upper seat and the lower seat can be improved, and the service life of the device is further prolonged.
The invention further provides that: still include the lasso, the lasso cover is established on last seat and lower seat, the lasso inner peripheral wall contacts with last seat lateral wall and lower seat lateral wall respectively, first spacing groove has been seted up to circumference on the last seat lateral wall, second spacing groove has been seted up to circumference on the lower seat lateral wall, be provided with on the lasso inner peripheral wall be used for with first spacing groove grafting complex first spacing ring, still be provided with on the lasso inner peripheral wall be used for with second spacing groove grafting complex second spacing ring.
The technical scheme is beneficial in that: after the rollers are arranged between the upper seat and the lower seat, the ferrule can be sleeved on the upper seat and the lower seat, at the moment, the fixation of the ferrule and the upper seat is realized through the plug-in fit of the first limiting ring and the first limiting groove, the fixation of the ferrule and the lower seat is realized through the plug-in fit of the second limiting ring and the second limiting groove, the ferrule simultaneously fixes the upper seat and the lower seat, the inner peripheral wall of the ferrule is respectively contacted with the outer side wall of the upper seat and the outer side wall of the lower seat, and the upper seat and the lower seat can rotate; the arrangement of the technology ensures that the upper seat and the lower seat cannot be scattered or offset in the running process, and ensures the normal running of the upper seat and the lower seat.
The invention further provides that: a plurality of heat dissipation windows are formed in the outer peripheral wall of the ferrule.
The technical scheme is beneficial in that: the heat dissipation window can be used for discharging heat generated in the running process of the bearing, so that the bearing is prevented from being damaged due to high temperature.
The invention further provides that: the inner peripheral wall of the shaft hole is provided with a grease guiding groove in a circumferential direction.
The technical scheme is beneficial: the arrangement of the grease guiding groove can effectively guide redundant grease on the surface of the roller to the peripheral wall of the shaft hole, so that the redundant grease is used for the external inserting shaft, and further friction loss between the external inserting shaft and the shaft hole is reduced.
The invention further provides that: the bottom of the inner peripheral wall of the shaft hole on the lower seat is provided with a guide ring for guiding the roller to roll.
The technical scheme is beneficial in that: the guide ring can guide the roller to roll normally on the second inclined plane, so that the phenomenon of deflection of the roller is avoided.
Drawings
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a three-dimensional view of the invention with the ferrule removed;
FIG. 3 is a three-dimensional view of a ferrule of the present invention;
FIG. 4 is a three-dimensional view of the lower seat of the present invention;
fig. 5 is a three-dimensional view of the upper seat of the present invention.
Detailed Description
The invention provides a thrust tapered roller 5 bearing, which comprises an upper seat 1 and a lower seat 2, wherein the upper seat 1 and the lower seat 2 are coaxially arranged, shaft holes 3 are penetrated through the centers of the upper seat 1 and the lower seat 2, the inner peripheral wall of the upper seat 1 and the inner peripheral wall of the lower seat 2 are oppositely arranged, a plurality of limiting blocks 4 are circumferentially distributed on the inner peripheral wall of the upper seat 1 and the inner peripheral wall of the lower seat 2 along the respective shaft holes 3, the limiting blocks 4 on the upper seat 1 are in one-to-one correspondence and staggered arrangement with the limiting blocks 4 on the lower seat 2, a gap is reserved between each limiting block 4 and the adjacent limiting block 4, a first inclined surface 11 is connected between the left side wall of each limiting block 4 on the upper seat 1 and the inner peripheral wall of the upper seat 1, a second inclined surface 21 is connected between the right side wall of each limiting block 4 on the lower seat 2 and the inner peripheral wall of the lower seat 2, each first inclined surface 11 is in one-to-one correspondence with each second inclined surface 21, each first inclined surface 11 is combined with a corresponding second inclined surface 21 to form a roller path 51, each roller path is internally provided with a roller 5 in a rolling way, the transverse section of each roller path 51 is the same and is in a fan-shaped arrangement, the novel heat dissipation device further comprises a ferrule 6, the ferrule 6 is sleeved on the upper seat 1 and the lower seat 2, the inner peripheral wall of the ferrule 6 is respectively contacted with the outer side wall of the upper seat 1 and the outer side wall of the lower seat 2, the outer side wall of the upper seat 1 is circumferentially provided with a first limit groove 12, the outer side wall of the lower seat 2 is circumferentially provided with a second limit groove 22, the inner peripheral wall of the ferrule 6 is provided with a first limit ring 61 for being in plug-in fit with the first limit groove 12, the inner peripheral wall of the ferrule 6 is also provided with a second limit ring 62 for being in plug-in fit with the second limit groove 22, the outer peripheral wall of the ferrule 6 is provided with a plurality of heat dissipation windows 63, the inner peripheral wall of the shaft hole 3 is provided with a grease guiding groove 31 in a circumferential direction, and the bottom of the inner peripheral wall of the shaft hole 3 on the lower seat 2 is provided with a guiding ring 32 for guiding the roller 5 to roll.
While the basic principles and main features of the present invention and advantages of the present invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing specification merely illustrate the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims and their equivalents.
Claims (5)
1. A tapered roller thrust bearing is characterized in that: including upper seat and lower seat, upper seat and lower coaxial setting, upper seat and lower seat center department all run through there is the shaft hole, upper seat inner peripheral wall sets up in opposite directions with lower seat inner peripheral wall, all arranged a plurality of stoppers along respective shaft hole circumference on upper seat inner peripheral wall and the lower seat inner peripheral wall, a plurality of stoppers on the upper seat and a plurality of stoppers one-to-one and dislocation set on the lower seat, every leave the clearance between stopper all and the adjacent stopper, be connected with first inclined plane between every stopper left side wall on the upper seat all and the upper seat inner peripheral wall, be connected with the second inclined plane between every stopper right side wall on the lower seat all and the lower seat inner peripheral wall, every first inclined plane all sets up with every second inclined plane one-to-one, every first inclined plane all forms the raceway with the second inclined plane combination that corresponds respectively, every all rolls in the raceway and is provided with the roller, every horizontal cross-section of raceway all is the same and is the fan-shaped setting.
2. A tapered roller thrust bearing as claimed in claim 1, wherein: still include the lasso, the lasso cover is established on last seat and lower seat, the lasso inner peripheral wall contacts with last seat lateral wall and lower seat lateral wall respectively, first spacing groove has been seted up to circumference on the last seat lateral wall, second spacing groove has been seted up to circumference on the lower seat lateral wall, be provided with on the lasso inner peripheral wall be used for with first spacing groove grafting complex first spacing ring, still be provided with on the lasso inner peripheral wall be used for with second spacing groove grafting complex second spacing ring.
3. A tapered roller thrust bearing as claimed in claim 2, wherein: a plurality of heat dissipation windows are formed in the outer peripheral wall of the ferrule.
4. A tapered roller thrust bearing as claimed in claim 1, wherein: the inner peripheral wall of the shaft hole is provided with a grease guiding groove in a circumferential direction.
5. A tapered roller thrust bearing as claimed in claim 1, wherein: the bottom of the inner peripheral wall of the shaft hole on the lower seat is provided with a guide ring for guiding the roller to roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111193589.8A CN114183461B (en) | 2021-10-13 | 2021-10-13 | Thrust tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111193589.8A CN114183461B (en) | 2021-10-13 | 2021-10-13 | Thrust tapered roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183461A CN114183461A (en) | 2022-03-15 |
| CN114183461B true CN114183461B (en) | 2023-10-10 |
Family
ID=80539452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111193589.8A Active CN114183461B (en) | 2021-10-13 | 2021-10-13 | Thrust tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114183461B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340607A (en) * | 1971-06-16 | 1973-12-12 | Timken Co | Roller bearings |
| JP2007170539A (en) * | 2005-12-21 | 2007-07-05 | Ntn Corp | Thrust receiving mechanism |
| WO2012157430A1 (en) * | 2011-05-13 | 2012-11-22 | 株式会社椿本チエイン | Annular raceway ring module and axial roller bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8764307B2 (en) * | 2010-10-29 | 2014-07-01 | Koyo Bearings Usa Llc | Roller thrust bearing vibration isolator |
-
2021
- 2021-10-13 CN CN202111193589.8A patent/CN114183461B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340607A (en) * | 1971-06-16 | 1973-12-12 | Timken Co | Roller bearings |
| JP2007170539A (en) * | 2005-12-21 | 2007-07-05 | Ntn Corp | Thrust receiving mechanism |
| WO2012157430A1 (en) * | 2011-05-13 | 2012-11-22 | 株式会社椿本チエイン | Annular raceway ring module and axial roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114183461A (en) | 2022-03-15 |
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