CN113623316B - Thrust roller bearing retainer and thrust roller bearing - Google Patents
Thrust roller bearing retainer and thrust roller bearing Download PDFInfo
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- CN113623316B CN113623316B CN202110465279.0A CN202110465279A CN113623316B CN 113623316 B CN113623316 B CN 113623316B CN 202110465279 A CN202110465279 A CN 202110465279A CN 113623316 B CN113623316 B CN 113623316B
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- hole
- roller
- inner ring
- outer ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—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
- F16C19/305—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 consisting of rollers held in a cage
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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
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
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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
- F16C33/46—Cages for rollers or needles
- F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
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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
- F16C33/46—Cages for rollers or needles
- F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
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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
- F16C33/6607—Retaining the grease in or near the bearing
- F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or 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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention relates to the technical field of thrust roller bearings, in particular to a thrust roller bearing retainer and a thrust roller bearing. The thrust roller bearing comprises a shaft collar, a seat ring, rollers and a retainer, wherein the rollers comprise inner ring rollers and outer ring rollers, the retainer comprises an annular body and a pocket, one axial end of the pocket is a locking end for the rollers to be installed in the pocket, the other axial end of the pocket is a non-locking end which is matched with the rollers in a blocking mode to limit the annular body to move towards one axial side, the pocket further comprises an inner ring hole for installing the inner ring rollers and an outer ring hole for installing the outer ring rollers, the annular body can be limited to move towards two axial sides respectively through the non-locking end of the inner ring hole and the non-locking end of the outer ring hole, the excessive axial movement of the retainer is avoided, collision between the retainer and the shaft collar or the seat ring is avoided, and the influence on high-speed rotation and service life of the bearing is reduced.
Description
Technical Field
The invention relates to the technical field of thrust roller bearings, in particular to a thrust roller bearing retainer and a thrust roller bearing.
Background
The thrust roller bearing is used for bearing axial load and mainly comprises a shaft collar, a seat ring and a retainer arranged between the shaft collar and the seat ring, wherein the retainer comprises an annular body and pockets which are arranged on the annular body and axially penetrate through the annular body, the pockets are arranged in a plurality of circumferential spacing mode along the annular body, one end of each pocket is a locking port end, the other end of each pocket is a non-locking port end, or the two ends of each pocket are locking port ends, rollers are installed into the retainer from the locking port ends, and the non-locking port ends can be matched with the rollers in a blocking mode.
As shown in fig. 1, which is a partial structure of a retainer in the prior art, a pocket 101 is provided in a retainer 100, the pocket 101 has a locking end at an upper end and a non-locking end at a lower end, and a flare is provided at the locking end to facilitate loading of a roller 200 into the pocket 101.
For the retainer 100, in order to facilitate processing the pocket 101 and installing the roller 200, the size of the locking end is generally set to be larger, so that the axial movement of the retainer 100 is also larger when the bearing rotates at a high speed, as shown in fig. 1, when the retainer 100 moves towards the direction of the non-locking end, the bottom of the roller 200 is flush with the lower end surface of the retainer 100, which means that the retainer 100 collides with the shaft collar or the seat ring, which is not only unfavorable for the high-speed rotation of the bearing, but also affects the service life of the bearing.
Disclosure of Invention
The invention aims to provide a thrust roller bearing retainer, which solves the problems that the retainer in the prior art has larger axial movement and is easy to collide with a shaft collar or a seat ring so as to influence the high-speed rotation and the service life of a bearing; the invention also aims to provide a thrust roller bearing, which solves the problems that the high-speed rotation and the service life of the bearing are affected due to the fact that the axial play of a retainer is large and the retainer is easy to collide with a shaft collar or a seat ring in the prior art.
In order to achieve the above object, the thrust roller bearing retainer of the present invention adopts the following technical scheme:
a thrust roller bearing retainer comprising:
an annular body;
the pocket is arranged on the annular body and penetrates through the annular body along the axial direction, a plurality of pockets are arranged along the circumferential direction of the annular body at intervals, one axial end of each pocket is a locking end for a roller to be arranged in the pocket, and the other axial end of each pocket is a non-locking end for being matched with the roller in a blocking way;
the pocket hole comprises an inner ring hole for installing the inner ring roller and an outer ring hole for installing the outer ring roller, the locking mouth end of the inner ring hole and the locking mouth end of the outer ring hole face opposite directions, the non-locking mouth end of the inner ring hole is used for being matched with the inner ring roller in a blocking mode to limit the annular body to move towards one axial side, and the non-locking mouth end of the outer ring hole is used for being matched with the outer ring roller in a blocking mode to limit the annular body to move towards the other axial side.
The beneficial effects of the technical scheme are that: because the locking end of the inner ring hole and the locking end of the outer ring hole face opposite directions, the non-locking end of the inner ring hole and the non-locking end of the outer ring hole face opposite directions, and the non-locking end of the inner ring hole can be matched with the inner ring roller in a blocking way to limit the annular body to move towards one axial side, the non-locking end of the outer ring hole can be matched with the outer ring roller in a blocking way to limit the annular body to move towards the other axial side, namely, the non-locking end of the inner ring hole and the non-locking end of the outer ring hole can limit the annular body to move towards two axial sides respectively, the axial play of the retainer is avoided, the retainer is prevented from colliding with a shaft ring or a seat ring, and the influence on high-speed rotation of the bearing and the service life of the bearing is reduced.
Further, the inner ring hole is communicated with the outer ring hole.
The beneficial effects of the technical scheme are that: the inner ring hole and the outer ring hole are communicated, so that the processing of the pocket hole can be facilitated, and the roller is arranged in the pocket hole.
Further, the pocket hole is a rectangular hole for simultaneously installing two cylindrical rollers, and two hole wall surfaces of the pocket hole, which are positioned in the radial direction, are all arc surfaces so as to generate a gap with the end surfaces of the two cylindrical rollers.
The beneficial effects of the technical scheme are that: the two hole wall surfaces of the pocket hole in the radial direction are arc surfaces, a gap can be formed between the arc surfaces and the end surfaces of the two cylindrical rollers, the contact area between the pocket hole wall and the end surfaces of the cylindrical rollers is reduced, and further friction between the end surfaces of the rollers and the pocket hole can be reduced; and, the lubricating grease can be stored to the clearance between pocket hole and two cylindrical rollers, improves the lubricated effect between pocket hole and the roller.
Further, the pocket hole comprises an arc hole wall or a spherical hole wall matched with the outer peripheral surface of the roller, the locking end is a bell mouth connected with the arc hole wall or the spherical hole wall, the non-locking end is a plane connected with the arc hole wall or a cylindrical surface connected with the spherical hole wall, and the plane or the cylindrical surface is perpendicular to the end surface of the annular body.
The beneficial effects of the technical scheme are that: the arc hole wall or the spherical hole wall is more beneficial to the rolling of the roller in the pocket hole, and the service life of the retainer is prolonged; the horn-shaped locking port end is more convenient for the rollers to be arranged in the pockets; the non-locking end is a plane connected with the arc hole wall or a cylindrical surface connected with the spherical hole wall and is perpendicular to the end surface of the annular body, so that the processing of the non-locking end is facilitated.
In order to achieve the above purpose, the thrust roller bearing in the present invention adopts the following technical scheme:
a thrust roller bearing comprising:
a shaft collar;
a seat ring;
a retainer disposed between the collar and the race;
a roller mounted on the holder;
wherein the retainer comprises:
an annular body;
the pocket is arranged on the annular body and penetrates through the annular body along the axial direction, a plurality of pockets are arranged along the circumferential direction of the annular body at intervals, one axial end of each pocket is a locking end for a roller to be arranged in the pocket, and the other axial end of each pocket is a non-locking end for being matched with the roller in a blocking way;
the rollers comprise an inner ring roller and an outer ring roller;
the pocket hole comprises an inner ring hole for installing the inner ring roller and an outer ring hole for installing the outer ring roller, the locking mouth end of the inner ring hole and the locking mouth end of the outer ring hole face opposite directions, the non-locking mouth end of the inner ring hole is used for being matched with the inner ring roller in a blocking mode to limit the annular body to move towards one axial side, and the non-locking mouth end of the outer ring hole is used for being matched with the outer ring roller in a blocking mode to limit the annular body to move towards the other axial side.
The beneficial effects of the technical scheme are that: the inner ring roller and the outer ring roller can increase the bearing capacity of the bearing; because the locking end of the inner ring hole and the locking end of the outer ring hole face opposite directions, the non-locking end of the inner ring hole and the non-locking end of the outer ring hole face opposite directions, and the non-locking end of the inner ring hole can be matched with the inner ring roller in a blocking way to limit the annular body to move towards one axial side, the non-locking end of the outer ring hole can be matched with the outer ring roller in a blocking way to limit the annular body to move towards the other axial side, namely, the non-locking end of the inner ring hole and the non-locking end of the outer ring hole can limit the annular body to move towards two axial sides respectively, the axial play of the retainer is avoided, the retainer is prevented from colliding with a shaft ring or a seat ring, and the influence on high-speed rotation of the bearing and the service life of the bearing is reduced.
Further, the inner ring hole is communicated with the outer ring hole.
The beneficial effects of the technical scheme are that: the inner ring hole and the outer ring hole are communicated, so that the processing of the pocket hole can be facilitated, and the roller is arranged in the pocket hole.
Further, the inner ring roller and the outer ring roller are cylindrical rollers, the pocket is a rectangular hole for simultaneously installing the two cylindrical rollers, and two hole wall surfaces of the pocket, which are positioned in the radial direction, are arc surfaces so as to generate a gap with the end surfaces of the two cylindrical rollers.
The beneficial effects of the technical scheme are that: the two hole wall surfaces of the pocket hole in the radial direction are arc surfaces, a gap can be formed between the arc surfaces and the end surfaces of the two cylindrical rollers, the contact area between the pocket hole wall and the end surfaces of the cylindrical rollers is reduced, and further friction between the end surfaces of the rollers and the pocket hole can be reduced; and, the lubricating grease can be stored to the clearance between pocket hole and two cylindrical rollers, improves the lubricated effect between pocket hole and the roller.
Further, the pocket hole comprises an arc hole wall or a spherical hole wall matched with the outer peripheral surface of the roller, the locking end is a bell mouth connected with the arc hole wall or the spherical hole wall, the non-locking end is a plane connected with the arc hole wall or a cylindrical surface connected with the spherical hole wall, and the plane or the cylindrical surface is perpendicular to the end surface of the annular body.
The beneficial effects of the technical scheme are that: the arc hole wall or the spherical hole wall is more beneficial to the rolling of the roller in the pocket hole, and the service life of the retainer is prolonged; the horn-shaped locking port end is more convenient for the rollers to be arranged in the pockets; the non-locking end is a plane connected with the arc hole wall or a cylindrical surface connected with the spherical hole wall and is perpendicular to the end surface of the annular body, so that the processing of the non-locking end is facilitated.
Drawings
FIG. 1 is a partial block diagram of a retainer of the prior art;
in the figure: 100. a retainer; 101. a pocket; 200. a roller;
FIG. 2 is a front view of a thrust roller bearing of the present invention;
FIG. 3 is a top view of a retainer for a thrust roller bearing of the present invention;
FIG. 4 is a cross-sectional view taken along the direction K-K in FIG. 3;
FIG. 5 is a cross-sectional view taken along the direction K-K in FIG. 3 (end points at both ends of the non-locking end plane of the inner race bore are marked);
FIG. 6 is a J-J sectional view of FIG. 3;
FIG. 7 is a block diagram of the retainer of the thrust roller bearing of the present invention moved down to an extreme position;
FIG. 8 is a block diagram of the thrust roller bearing retainer of the present invention moved up to an extreme position;
in the figure: 1. a retainer; 1-1, an annular body; 1-2, inner ring holes; 1-3, outer ring holes; 1-4, a non-locking end of an inner ring hole; 1-5, locking port ends of inner ring holes; 1-6, the non-locking end of the outer ring hole; 1-7, locking port ends of outer ring holes; 1-8, arc hole wall; 2. an outer ring roller; 3. an inner ring roller; 4. a seat ring; 5. and a shaft collar.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
A preferred embodiment of the thrust roller bearing of the present invention is shown in fig. 2, and the thrust roller bearing comprises a race 5, a raceway 4, rollers and a retainer 1, wherein the rollers are mounted on the retainer 1, and as shown in fig. 3, the rollers comprise an inner ring roller 3 and an outer ring roller 2, and the inner ring roller 3 and the outer ring roller 2 are cylindrical rollers.
The retainer 1 is mounted between the shaft collar 5 and the seat ring 4, as shown in fig. 3, the retainer 1 includes an annular body 1-1 and a pocket hole, wherein the pocket hole is provided on the annular body 1-1 and penetrates the annular body 1-1 in the axial direction, the pocket hole is provided with a plurality of pocket holes and is arranged at intervals along the circumferential direction of the annular body 1-1, one axial end of the pocket hole is a locking mouth end for loading the roller into the pocket hole, and the other axial end of the pocket hole is a non-locking mouth end for being in stop fit with the roller to limit the annular body 1-1 to move towards one axial side.
Specifically, the pocket is a rectangular hole in which two cylindrical rollers are mounted at the same time, the pocket comprises an inner ring hole 1-2 for mounting an inner ring roller 3 and an outer ring hole 1-3 for mounting an outer ring roller 2, and the inner ring hole 1-2 is communicated with the outer ring hole 1-3 (as shown in fig. 2). The structure of the inner ring hole 1-2 is shown in fig. 4 and 5, the inner ring hole 1-2 comprises an arc hole wall 1-8 matched with the outer peripheral surface of the inner ring roller 3, a locking end 1-5 of the inner ring hole is positioned at the lower end, a non-locking end 1-4 of the inner ring hole is positioned at the upper end, the locking end 1-5 of the inner ring hole is a bell mouth connected with the arc hole wall 1-8, the non-locking end 1-4 of the inner ring hole is a plane connected with the arc hole wall 1-8, and the plane is perpendicular to the end face of the annular body 1-1.
The outer ring hole 1-3 and the inner ring hole 1-2 are basically identical in structure, but the orientation of the locking ends is different. Therefore, as shown in fig. 6, the locking end 1-7 of the outer ring hole is located at the upper end, the non-locking end 1-6 of the outer ring hole is located at the lower end, that is, the locking end 1-5 of the inner ring hole and the locking end 1-7 of the outer ring hole are opposite, the non-locking end 1-4 of the inner ring hole and the non-locking end 1-6 of the outer ring hole are opposite, so that the non-locking end 1-4 of the inner ring hole can be in blocking fit with the inner ring roller 3 to limit the annular body 1-1 to move towards one axial side, the non-locking end 1-6 of the outer ring hole can be in blocking fit with the outer ring roller 2 to limit the annular body 1-1 to move towards the other axial side, that is, through the non-locking end 1-4 of the inner ring hole and the non-locking end 1-6 of the outer ring hole can limit the annular body 1-1 to move towards two axial sides respectively, the excessive axial movement of the retainer 1 is avoided, the collision with the shaft collar 5 or the race 4 is avoided, and the influence on the high-speed rotation and service life of the bearing is reduced.
Specifically, during the high-speed rotation of the thrust roller bearing, when the retainer 1 moves down, the downward movement of the retainer 1 is restricted by the non-locking end 1-4 of the inner ring bore (as shown in fig. 7), and correspondingly, when the retainer 1 moves up during the high-speed rotation, the upward movement of the retainer 1 is restricted by the non-locking end 1-6 of the outer ring bore (as shown in fig. 8), and at this time, the upward and downward movements of the retainer 1 are both restricted, so that by adjusting the sizes of the non-locking end 1-4 of the inner ring bore and the non-locking end 1-6 of the outer ring bore, the axial play amount of the retainer 1, and the clearance (h 1 or h2 in fig. 2) between the end face of the retainer 1 and the collar 5 or the race 4 can be adjusted.
For example, as shown in fig. 5 and 6, during high-speed rotation of the bearing, when the retainer 1 moves down, the retainer 1 is limited by the non-locking end 1-4 (DD ') of the inner ring hole, and when the retainer moves up, the retainer 1 is limited by the non-locking end 1-6 (GG') of the outer ring hole, and the axial displacement amount of the retainer 1 can be adjusted by adjusting the sizes of DD 'and GG'. Alternatively, the dimensions of the above-mentioned planes may be regarded as the length of CD or C 'D', GF or G 'F', and thus the dimensions of CD or C 'D', GF or G 'F' may be changed, and the amount of axial play of the retainer 1 may be changed.
In addition, as shown in fig. 2, two hole wall surfaces of the pocket hole in the radial direction are arc surfaces (arc MM 'and arc NN') so as to generate a gap with the end surfaces of the two cylindrical rollers, and the gap can store lubricating grease, so that the lubricating effect between the pocket hole and the rollers is improved, and the friction between the end surfaces of the rollers and the pocket hole is reduced.
In other embodiments of the thrust roller bearing, when the roller is a spherical roller, the wall of the pocket for matching with the outer peripheral surface of the roller is a spherical wall, the locking end is a flare connected with the spherical wall, the non-locking end is a cylindrical surface connected with the spherical wall, and the cylindrical surface is perpendicular to the end surface of the annular body.
In other embodiments of the thrust roller bearing, the hole wall of the pocket hole for matching with the outer peripheral surface of the roller may be a cylindrical hole, the locking end connected with the cylindrical hole wall may be a cylindrical hole, after the roller is loaded into the retainer from the cylindrical locking hole, a chisel opening for preventing the roller from falling off is chiseled at the locking hole, and the non-locking end connected with the cylindrical hole wall may be an inwardly retracted conical hole section.
In other embodiments of thrust roller bearings, the pockets may not be rectangular holes, such as two communicating circular holes for mounting two spherical rollers.
In other embodiments of the thrust roller bearing, the inner race bore and the outer race bore may not be in communication, but may be separately spaced apart.
Examples of the thrust roller bearing retainer of the present invention are: the specific construction of the thrust roller bearing retainer is the same as in the thrust roller bearing embodiments described above and will not be repeated here.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A thrust roller bearing retainer comprising:
an annular body (1-1);
the pocket is arranged on the annular body (1-1) and penetrates through the annular body (1-1) along the axial direction, a plurality of pockets are arranged at intervals along the circumferential direction of the annular body (1-1), one axial end of each pocket is a locking port end for a roller to be arranged in the pocket, and the other axial end of each pocket is a non-locking port end for being matched with the roller in a blocking mode;
the method is characterized in that:
the pocket comprises an inner ring hole (1-2) for mounting an inner ring roller (3) and an outer ring hole (1-3) for mounting an outer ring roller (2), wherein the locking end (1-5) of the inner ring hole faces opposite to the locking end (1-7) of the outer ring hole, the non-locking end (1-4) of the inner ring hole is used for being in blocking fit with the inner ring roller (3) to limit the annular body (1-1) to move towards one axial side, and the non-locking end (1-6) of the outer ring hole is used for being in blocking fit with the outer ring roller (2) to limit the annular body (1-1) to move towards the other axial side;
the axial displacement of the retainer is regulated by regulating the dimensions of the non-locking end (1-4) of the inner ring hole and the non-locking end (1-6) of the outer ring hole.
2. The thrust roller bearing retainer of claim 1, wherein: the inner ring hole (1-2) is communicated with the outer ring hole (1-3).
3. The thrust roller bearing retainer of claim 2, wherein: the pocket hole is a rectangular hole for simultaneously installing two cylindrical rollers, and two hole wall surfaces of the pocket hole, which are positioned in the radial direction, are all arc surfaces so as to generate a gap with the end surfaces of the two cylindrical rollers.
4. A thrust roller bearing retainer according to any one of claims 1 to 3, wherein: the pocket hole comprises an arc hole wall (1-8) or a spherical hole wall matched with the outer peripheral surface of the roller, the locking end is a bell mouth connected with the arc hole wall (1-8) or the spherical hole wall, the non-locking end is a plane connected with the arc hole wall (1-8) or a cylindrical surface connected with the spherical hole wall, and the plane or the cylindrical surface is perpendicular to the end surface of the annular body (1-1).
5. A thrust roller bearing comprising:
a collar (5);
a seat ring (4);
a retainer (1) arranged between the shaft collar (5) and the race (4);
a roller mounted on the holder (1);
wherein the retainer (1) comprises:
an annular body (1-1);
the pocket is arranged on the annular body (1-1) and penetrates through the annular body (1-1) along the axial direction, a plurality of pockets are arranged at intervals along the circumferential direction of the annular body (1-1), one axial end of each pocket is a locking port end for a roller to be arranged in the pocket, and the other axial end of each pocket is a non-locking port end for being matched with the roller in a blocking mode;
the method is characterized in that:
the rollers comprise an inner ring roller (3) and an outer ring roller (2);
the pocket comprises an inner ring hole (1-2) for mounting an inner ring roller (3) and an outer ring hole (1-3) for mounting an outer ring roller (2), wherein the locking end (1-5) of the inner ring hole faces opposite to the locking end (1-7) of the outer ring hole, the non-locking end (1-4) of the inner ring hole is used for being in blocking fit with the inner ring roller (3) to limit the annular body (1-1) to move towards one axial side, and the non-locking end (1-6) of the outer ring hole is used for being in blocking fit with the outer ring roller (2) to limit the annular body (1-1) to move towards the other axial side;
the axial displacement of the retainer is regulated by regulating the dimensions of the non-locking end (1-4) of the inner ring hole and the non-locking end (1-6) of the outer ring hole.
6. The thrust roller bearing of claim 5, wherein: the inner ring hole (1-2) is communicated with the outer ring hole (1-3).
7. The thrust roller bearing of claim 6, wherein: the inner ring roller (3) and the outer ring roller (2) are cylindrical rollers, the pocket is a rectangular hole for simultaneously installing two cylindrical rollers, and two hole wall surfaces of the pocket, which are positioned in the radial direction, are arc surfaces so as to generate a gap with the end surfaces of the two cylindrical rollers.
8. The thrust roller bearing of any one of claims 5 to 7, wherein: the pocket hole comprises an arc hole wall (1-8) or a spherical hole wall matched with the outer peripheral surface of the roller, the locking end is a bell mouth connected with the arc hole wall (1-8) or the spherical hole wall, the non-locking end is a plane connected with the arc hole wall (1-8) or a cylindrical surface connected with the spherical hole wall, and the plane or the cylindrical surface is perpendicular to the end surface of the annular body (1-1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110465279.0A CN113623316B (en) | 2021-04-28 | 2021-04-28 | Thrust roller bearing retainer and thrust roller bearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110465279.0A CN113623316B (en) | 2021-04-28 | 2021-04-28 | Thrust roller bearing retainer and thrust roller bearing |
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| CN113623316A CN113623316A (en) | 2021-11-09 |
| CN113623316B true CN113623316B (en) | 2023-06-23 |
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| CN202110465279.0A Active CN113623316B (en) | 2021-04-28 | 2021-04-28 | Thrust roller bearing retainer and thrust roller bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114263679A (en) * | 2022-01-26 | 2022-04-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Cylindrical roller bearing retainer |
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| JP2005061614A (en) * | 2003-07-25 | 2005-03-10 | Ntn Corp | Thrust needle roller bearing |
| JP2006052812A (en) * | 2004-08-16 | 2006-02-23 | Ntn Corp | Double row thrust roller bearing |
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| CN113623316A (en) | 2021-11-09 |
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