CN111720449A - Precise thrust bearing and assembling method thereof - Google Patents
Precise thrust bearing and assembling method thereof Download PDFInfo
- Publication number
- CN111720449A CN111720449A CN202010466734.4A CN202010466734A CN111720449A CN 111720449 A CN111720449 A CN 111720449A CN 202010466734 A CN202010466734 A CN 202010466734A CN 111720449 A CN111720449 A CN 111720449A
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- China
- Prior art keywords
- thrust bearing
- connecting ring
- retainer
- ring
- parts
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
- F16C43/065—Placing rolling bodies in cages or bearings in 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
- F16C33/38—Ball cages
- F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
- F16C33/3843—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages formed as one-piece cages, i.e. monoblock 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
- F16C33/38—Ball cages
- F16C33/44—Selection of substances
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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
- F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
- F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
- F16C2206/56—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal based on ceramic carbides, e.g. silicon carbide (SiC)
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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
- F16C2220/00—Shaping
- F16C2220/40—Shaping by deformation without removing material
- F16C2220/48—Shaping by deformation without removing material by extrusion, e.g. of metallic profiles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a precision thrust bearing and an assembling method thereof. A precise thrust bearing comprises a first connecting ring and a second rolling ring; the first connecting ring is connected with the frame, so the second rolling ring is connected with the shaft, and a retainer is arranged between the first connecting ring and the second rolling ring; balls are arranged above the retainer, the retainer comprises a central turntable and a separating fin plate arranged at the edge of the central turntable, and the separating fin plate is used for separating the balls; the bottom of the fin plate is provided with an inserting plate which is matched with a slot on the second rolling ring below the inserting plate. A method for assembling a precision thrust bearing comprises the following specific steps: 1) placing the second rolling ring and the retainer in the first die cavity group; 2) putting balls into the grooves; 3) cold stamping; 4) feeding the first connecting ring into the second die cavity group; 5) placing the first connecting ring; 6) and carrying out secondary cold stamping. The invention has the advantages of convenient assembly and disassembly, high mechanical strength and high wear resistance.
Description
Technical Field
The invention relates to a precision thrust bearing and an assembling method thereof.
Background
The thrust bearing is an important component of the main power transmission device and transmits power. Traditional thrust bearing mostly assembles through the mode of artifical striking. The assembly is carried out through the mode of strikeing, can influence the precision of bearing, simultaneously, also can significantly reduce thrust bearing's life-span. Therefore, how to improve the convenience of thrust bearing installation, extension thrust bearing's life-span is the problem that this patent was waited to solve.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provides a precise thrust bearing which is convenient to mount and dismount, high in mechanical strength, high in wear resistance and high in chemical corrosion resistance and an assembling method thereof.
The technical scheme is as follows: a precise thrust bearing comprises a first connecting ring and a second rolling ring; the first connecting ring is connected with the frame, so the second rolling ring is connected with the shaft, and a retainer is arranged between the first connecting ring and the second rolling ring; balls are arranged above the retainer, the retainer comprises a central turntable and a separating fin plate arranged at the edge of the central turntable, and the separating fin plate is used for separating the balls; the bottom of the fin plate is provided with an inserting plate which is matched with a slot on the second rolling ring below the inserting plate.
The invention has the further improvement that two sides of the separating fin plate are arc-shaped; the balls are arranged in the grooves above the retainer.
A further development of the invention is that the separating fin is fan-shaped.
The invention is further improved in that the central turntable 4 is composed of the following materials in parts by weight:
75-80 parts of nylon PA6 resin; 10-15 parts of glass fiber; 1-2 parts of an anti-aging agent; 3-5 parts of silicon carbide ceramic powder; 0.02-0.04 part of tetramethyl ammonium hydroxide; 1-2 parts of diacetin (GDA).
The invention is further improved in that the first connecting ring, the second rolling ring and the retainer are all made of silicon carbide ceramics.
The invention is further improved in that the second rolling ring and the flange are of an integral structure.
A method for assembling a precision thrust bearing comprises the following specific steps:
1) placing the second rolling ring and the retainer in the first die cavity group;
2) putting balls into the grooves;
3) carrying out cold stamping;
4) the first connecting ring is sent into a second die cavity group corresponding to the lower part of the first die cavity group;
5) placing the first connecting ring;
6) and carrying out secondary cold stamping.
Compared with the prior art, the precision thrust bearing and the assembling method thereof provided by the invention at least realize the following beneficial effects:
the invention can bear larger axial stress load. The central turntable is connected with the second rolling ring through the inserting plate at the bottom of the separating fin plate, so that the installation is convenient. By adding ceramic powder particles for modification, compared with the traditional bearing, the mechanical strength is high, and the wear resistance and the chemical corrosion resistance are improved. By adding the nylon PA6 resin, the impact resistance, wear resistance and chemical resistance of the thrust bearing are improved.
Of course, it is not specifically necessary for any one product in which the present invention is practiced to achieve all of the above technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the cage of the present invention;
wherein, 1-a first linking ring; 2-a second roll ring; 3-a cage; 302-a ball bearing; 303-separating fin plate; 304-a central turntable; 306-inserting board; 4-a flange plate.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the case of the example 1, the following examples are given,
as shown in fig. 1 and 2, a precision thrust bearing includes a first connecting ring 1, a second rolling ring 2; the first connecting ring 1 is connected with the frame, so the second rolling ring 2 is connected with the shaft, and a retainer 3 is arranged between the first connecting ring 1 and the second rolling ring 2; the inner diameter of the second rolling ring 2 is larger than that of the first connecting ring 2, a flange plate 4 is arranged at the edge of the first connecting ring 1, and the first connecting ring 1 is fixedly connected with the rack through the flange plate 4; balls 302 are arranged above the retainer 3, the retainer 3 comprises a central turntable 304 and a separating fin plate 303 arranged on the edge of the central turntable 304, and the separating fin plate 303 is used for separating the balls 302; the bottom of the fin plate 303 is provided with an inserting plate 306, and the inserting plate 306 is matched with a slot on the lower second rolling ring 2.
Based on this embodiment, it should be noted that the flange 4 is disposed to facilitate the direct connection and fixation of the first connection ring and the upper rack. The central turntable 304 is arranged in the retainer 3, and the fins 303 at the edge of the central turntable 304 separate the balls 302, so that the axial stress load of the thrust bearing is improved compared with the traditional ferrule seat cushion. The central turntable 304 is connected with the second rolling ring 2 through the inserting plate 306 at the bottom of the separating fin plate 303, so that the installation is convenient.
To further explain the present embodiment, it should be noted that both sides of the separating fin 303 are arc-shaped; the balls 30 are disposed in grooves above the cage 3. In this embodiment, two sides of the separating fin plate 303 are set to be arc-shaped, so that the balls 302 can be clamped between the separating fin plates 303.
To further explain the present embodiment, it should be noted that the separating fin 303 has a fan shape. In this embodiment, the separating fins 303 are fan-shaped, and the gaps and the sizes between the adjacent separating fins 303 are the same and are matched with the shapes of the balls 302.
For further explanation of the present embodiment, it is noted that the second rolling ring 2 is of a unitary construction with the flange 4. In this embodiment, set up ring flange 4 and second rolling ring 2 into an organic whole structure, be convenient for fix thrust bearing and frame, the reliability is high, and stability is good.
The assembling method of the precision thrust bearing comprises the following specific steps:
1) placing the second rolling ring 2 and the retainer 3 into the first die cavity group;
2) placing the ball 302;
3) carrying out cold stamping;
4) the first connecting ring 1 is sent into a corresponding second die cavity group below the first die cavity group;
5) putting the first connecting ring 1;
6) and carrying out secondary cold stamping.
In this embodiment, according to expend with heat and contract with cold's principle, carry out cold stamping, its organizational structure is inseparabler under the condition that guarantees that each item performance of bearing material does not change, and forged bearing quality is guaranteed, can avoid later stage maintenance to change, very big reduction the cost. The assembled second rolling ring 2 and the rolling part are turned over and then directly sent to the first connecting ring 1 in the second die cavity group, so that the production efficiency is greatly improved.
Example 2
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
75 parts of nylon PA6 resin; 10 parts of glass fiber; 1 part of anti-aging agent; 3 parts of silicon carbide ceramic powder; 0.02 part of tetramethyl ammonium hydroxide; 1 part of diacetin (GDA). The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
Example 3
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
75 parts of nylon PA6 resin; 15 parts of glass fiber; 2 parts of an anti-aging agent; 5 parts of silicon carbide ceramic powder; 0.04 part of tetramethylammonium hydroxide; diacetin (GDA) 2 parts. The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
Example 4
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
75 parts of nylon PA6 resin; 12 parts of glass fiber; 1 part of anti-aging agent; 4 parts of silicon carbide ceramic powder; 0.03 part of tetramethylammonium hydroxide; diacetin (GDA) 2 parts. The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
Example 5
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
80 parts of nylon PA6 resin; 10 parts of glass fiber; 1 part of anti-aging agent; 3 parts of silicon carbide ceramic powder; 0.02 part of tetramethyl ammonium hydroxide; 1 part of diacetin (GDA). The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
Example 6
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
80 parts of nylon PA6 resin; 15 parts of glass fiber; 2 parts of an anti-aging agent; 5 parts of silicon carbide ceramic powder; 0.04 part of tetramethylammonium hydroxide; diacetin (GDA) 2 parts. The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
Example 7
On the basis of embodiment 1, the central turntable 304 of the precision thrust bearing is composed of the following materials in parts by weight:
78 parts of nylon PA6 resin; 12 parts of glass fiber; 2 parts of an anti-aging agent; 3 parts of silicon carbide ceramic powder; 0.04 part of tetramethylammonium hydroxide; 1 part of diacetin (GDA). The first connecting ring 1, the second rolling ring 2 and the retainer 3 are all made of silicon carbide ceramics.
The bearings prepared in examples 2 to 7, which are modified by adding ceramic powder particles, have higher mechanical strength than conventional bearings, and improved wear resistance and chemical resistance. By adding the nylon PA6 resin, the impact resistance, wear resistance and chemical resistance of the thrust bearing are improved.
According to the embodiment, the precision thrust bearing and the assembling method thereof provided by the invention at least realize the following beneficial effects:
the invention can bear larger axial stress load. The central turntable 304 is connected with the second rolling ring 2 through the inserting plate 306 at the bottom of the separating fin plate 303, so that the installation is convenient. By adding ceramic powder particles for modification, compared with the traditional bearing, the mechanical strength is high, and the wear resistance and the chemical corrosion resistance are improved. By adding the nylon PA6 resin, the impact resistance, wear resistance and chemical resistance of the thrust bearing are improved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. A precision thrust bearing characterized by: comprises a first connecting ring (1) and a second rolling ring (2); the first connecting ring (1) is connected with the rack, so that the second rolling ring (2) is connected with the shaft, and a retainer (3) is arranged between the first connecting ring (1) and the second rolling ring (2);
the inner diameter of the second rolling ring (2) is larger than that of the first connecting ring (2), a flange plate (4) is arranged at the edge of the first connecting ring (1), and the first connecting ring (1) is fixedly connected with the rack through the flange plate (4);
balls (302) are arranged above the retainer (3), the retainer (3) comprises a central turntable (304) and a separating fin plate (303) arranged at the edge of the central turntable (304), and the separating fin plate (303) is used for separating the balls (302);
an inserting plate (306) is arranged at the bottom of the fin plate (303), and the inserting plate (306) is matched with a slot on the lower second rolling ring (2).
2. A precision thrust bearing according to claim 1, wherein: the two sides of the separating fin plate (303) are arc-shaped; the balls (302) are arranged in grooves above the retainer (3).
3. A precision thrust bearing according to claim 1, wherein: the separating fin plate (303) is fan-shaped.
4. A precision thrust bearing according to claim 1, wherein: the central turntable (304) is composed of the following materials in parts by weight:
75-80 parts of nylon PA6 resin; 10-15 parts of glass fiber; 1-2 parts of an anti-aging agent; 3-5 parts of silicon carbide ceramic powder; 0.02-0.04 part of tetramethyl ammonium hydroxide; 1-2 parts of diacetin (GDA).
5. A precision thrust bearing according to claim 1, wherein: the first connecting ring (1), the second rolling ring (2) and the retainer (3) are all made of silicon carbide ceramics.
6. A precision thrust bearing according to claim 1, wherein: the second rolling ring (2) and the flange plate (4) are of an integral structure.
7. The method of assembling a precision thrust bearing of claim 1, wherein: the method comprises the following specific steps:
1) placing the second rolling ring (2) and the retainer (3) in the first die cavity group;
2) inserting the ball (302);
3) carrying out cold stamping;
4) the first connecting ring (1) is sent into a corresponding second die cavity group below the first die cavity group;
5) placing the first connecting ring (1);
6) and carrying out secondary cold stamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010466734.4A CN111720449B (en) | 2020-05-28 | 2020-05-28 | Precise thrust bearing and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010466734.4A CN111720449B (en) | 2020-05-28 | 2020-05-28 | Precise thrust bearing and assembling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111720449A true CN111720449A (en) | 2020-09-29 |
| CN111720449B CN111720449B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010466734.4A Active CN111720449B (en) | 2020-05-28 | 2020-05-28 | Precise thrust bearing and assembling method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003193989A (en) * | 2001-12-27 | 2003-07-09 | Koyo Seiko Co Ltd | Eccentric thrust bearing |
| JP2006161922A (en) * | 2004-12-06 | 2006-06-22 | Nsk Ltd | Crowned cage |
| KR20100084154A (en) * | 2007-10-04 | 2010-07-23 | 섀플러 테크놀로지스 게엠베하 운트 코. 카게 | Radial rolling bearing especially double-row angular contact ball bearing |
| CN203835977U (en) * | 2014-05-21 | 2014-09-17 | 日本精工株式会社 | Thrust bearing |
| CN107043266A (en) * | 2017-04-18 | 2017-08-15 | 华中科技大学 | A kind of quick inorfil for preparing strengthens the method for ceramic matric composite |
| CN207728725U (en) * | 2018-01-21 | 2018-08-14 | 温州市宇润车业部件有限公司 | The automobile-used plane bearing of stable type |
| CN209705098U (en) * | 2018-12-27 | 2019-11-29 | 无锡市锡珠保持架有限公司 | A kind of aviation engine clutch bear plastic cage |
-
2020
- 2020-05-28 CN CN202010466734.4A patent/CN111720449B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003193989A (en) * | 2001-12-27 | 2003-07-09 | Koyo Seiko Co Ltd | Eccentric thrust bearing |
| JP2006161922A (en) * | 2004-12-06 | 2006-06-22 | Nsk Ltd | Crowned cage |
| KR20100084154A (en) * | 2007-10-04 | 2010-07-23 | 섀플러 테크놀로지스 게엠베하 운트 코. 카게 | Radial rolling bearing especially double-row angular contact ball bearing |
| CN203835977U (en) * | 2014-05-21 | 2014-09-17 | 日本精工株式会社 | Thrust bearing |
| CN107043266A (en) * | 2017-04-18 | 2017-08-15 | 华中科技大学 | A kind of quick inorfil for preparing strengthens the method for ceramic matric composite |
| CN207728725U (en) * | 2018-01-21 | 2018-08-14 | 温州市宇润车业部件有限公司 | The automobile-used plane bearing of stable type |
| CN209705098U (en) * | 2018-12-27 | 2019-11-29 | 无锡市锡珠保持架有限公司 | A kind of aviation engine clutch bear plastic cage |
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| Publication number | Publication date |
|---|---|
| CN111720449B (en) | 2021-12-21 |
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