CN211398298U - Ball bearing and retainer thereof - Google Patents
Ball bearing and retainer thereof Download PDFInfo
- Publication number
- CN211398298U CN211398298U CN201921821984.4U CN201921821984U CN211398298U CN 211398298 U CN211398298 U CN 211398298U CN 201921821984 U CN201921821984 U CN 201921821984U CN 211398298 U CN211398298 U CN 211398298U
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- CN
- China
- Prior art keywords
- retainer
- diameter surface
- ring body
- outer diameter
- oil guide
- 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.)
- Expired - Fee Related
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Abstract
A ball bearing and its keeper, a ball bearing includes an inner ring body has a rolling ditch located in the outer ring surface, an outer ring body is set in the peripheral side of the inner ring body, several balls are arranged between the inner ring body and the outer ring body at intervals; and the retainer is provided with an inner diameter surface, an outer diameter surface, a plurality of ball holes and a plurality of external connecting blocks, the plurality of ball holes are arranged at intervals and penetrate through the inner diameter surface and the outer diameter surface, the ball holes are respectively sleeved with balls between the inner ring body and the outer ring body, the plurality of external connecting blocks are convexly arranged on the outer diameter surface among the ball holes and respectively provided with two side connecting surfaces, the external connecting blocks are respectively connected with the outer diameter surface through the two side connecting surfaces to form an oil guide groove for guiding impregnated lubricating oil to enter the ball holes, and each external connecting block is respectively provided with two abutting parts which are convexly arranged towards the outer ring body at two ends and an oil guide groove which is concavely arranged on each abutting part, so that the outer ring body and the retainer only partially contact with the abutting parts to reduce friction.
Description
Technical Field
The present invention relates to a bearing structure, and more particularly to a ball bearing and a retainer thereof.
Background
With the rapid development of the related industries such as machinery and aviation, it is one of the trends of current development to increase the rotating speed of the rotating shaft of the rotating system and increase the working efficiency, and due to the development of the mechanical precision machining technology, the requirement for the precision of the rotating shaft is gradually increased, so that the high-speed performance and precision of the ball bearing must be continuously improved along with the requirement for the rotating speed and precision of the mechanical rotating shaft.
The high-speed performance and precision of the ball bearing are affected by the material of the bearing itself and the machining precision, and the structural design of the bearing is also significantly affected. The structure of the ball bearing generally includes an outer ring, an inner ring, balls, and a ball retainer. Wherein the ball retainer functions to separate the respective balls so that the plurality of balls can be arranged between the ball tracks of the inner and outer rings at equal angular intervals. How to avoid the collision friction between the ball retainer and the outer ring and the inner ring during operation and improve lubrication are important issues concerning bearing performance.
The applicant has also proposed various bearing structures with reduced friction and improved lubrication performance in the course of bearing development for many years, such as taiwan patent No. M331056 and taiwan patent No. M573802. The applicant continues to pursue another type of ball bearing and retainer arrangement in the light of his or her own refinement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem lies in, overcomes the above-mentioned defect that prior art exists, and provides a ball bearing and keeps ware, makes keep ware in the bearing operation with the contact of bearing only with the protruding structure of establishing of several interval that is located the external diameter face form local contact in order to reduce friction, and each interval is protruding to establish and is formed between the structure and lead the oil groove, provides the bearing and includes infiltration lubricating oil and can guide to get into in the pearl is downthehole in order to improve lubricated effect.
The utility model provides a technical scheme that its technical problem adopted is:
a ball bearing includes an inner ring having a rolling groove on an outer ring surface.
The outer ring body is sleeved on the outer peripheral side of the inner ring body and provided with a rolling groove positioned on the inner ring surface, and the rolling groove form a rolling path relatively.
A plurality of balls are arranged in the rolling path at intervals.
And a retainer, which is an annular body with an inner diameter surface and an outer diameter surface, and the retainer is provided with a plurality of ball holes and a plurality of external connecting blocks, the diameters of the ball holes are all larger than the diameters of the balls, the ball holes are arranged at intervals and penetrate through the inner diameter surface and the outer diameter surface, the retainer is positioned between the inner ring body and the outer ring body, the ball holes are respectively sleeved with the balls, the external connecting blocks are convexly arranged on the outer diameter surface between the ball holes and are respectively provided with two side connecting surfaces, and the two side connecting surfaces and the outer diameter surface between the external connecting blocks are respectively connected to form an oil guide groove for guiding impregnated lubricating oil to enter the ball holes, the external connecting blocks are respectively provided with two abutting parts which are convexly arranged at two ends of the external connecting blocks towards the outer ring body and an oil guide groove which is concavely arranged on the abutting parts, so that the outer ring body and the retainer only partially contact the abutting parts when colliding to reduce friction.
According to the above-mentioned to the utility model discloses under the description, the utility model discloses a further technical feature is that, should keep the ware and have two side anchor rings of connecting this inner diameter face, outer diameter face, two abutting portions of this circumscribed piece are located respectively and are close to one side of two side anchor rings and have a abutting surface of parallel outer diameter face respectively.
According to the above-mentioned to the utility model discloses under the description, the utility model discloses a further technical characterized in that, should lead the length of oil drain length and be greater than the length of portion of leaning on in order to cut apart each abutting surface for reduce and lean on the contact friction area when supporting with outer loop body and form and lead the oil lubrication.
According to the above to the utility model discloses under the description, the utility model discloses a further technical characterized in that, the slope of gradually deepening form is formed towards the one end of side anchor ring to the ditch bottom of this holder's oil guide ditch for improve and lead oily effect.
The utility model relates to a retainer for install in a ball bearing, this retainer contains an internal diameter face, an external diameter face, several pearl hole and several external piece, this several pearl hole interval range runs through this internal diameter face, the external diameter face, the protruding external diameter face of locating between each pearl hole of this several has two side joint faces respectively, and be connected with two side joint faces and external diameter face respectively between each external piece and form one and lead the oil groove, each external piece has respectively to be located two that both ends are towards the protruding establishment of outer annular body and lead the oil groove by joint portion and concave one of locating each joint portion.
The beneficial effects of the utility model are that, make the retainer in the bearing operation with the contact of bearing only with the protruding structure formation local contact of establishing of several interval that is located the external diameter face, and each interval is protruding to establish and is formed between the structure and lead the oil groove, provide the bearing and include infiltration lubricating oil and can guide to get into in the pearl is downthehole in order to improve lubricated effect.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of the holder of the present invention.
Fig. 3 is a partially enlarged perspective view of the retainer of the present invention.
Fig. 4 is a schematic plan view of the assembly of the present invention.
FIG. 5 is a schematic cross-sectional view of line V-V shown in FIG. 1.
Figure 6 is a schematic cross-sectional view taken along line vi-vi of figure 2.
FIG. 7 is a schematic cross-sectional view of the VII-VII line shown in FIG. 4.
Fig. 8 is a partially enlarged schematic view of the upper section of fig. 7.
Fig. 9 is a partially enlarged view of a lower section of fig. 7.
The reference numbers in the figures illustrate:
ball bearing 100
Rolling channel 12
Rolling groove 22
Bead hole 43
Side joint surface 441
Scroll Path A
Oil guide groove B
Oil guide ditch C
Oil guide groove length L1
Abutment length L2
Detailed Description
Referring to fig. 1 to 9, a ball bearing 100 of the present invention includes: an inner ring 10 has a rolling groove 12 on the outer ring surface.
An outer ring 20 is disposed around the outer periphery of the inner ring 10, the outer ring 20 has a rolling groove 22 located on the inner ring surface, and the rolling groove 22 and the rolling groove 12 form a rolling path a.
A plurality of balls 30 are arranged in the rolling path A at intervals;
and a retainer 40, which is an annular body having an inner diameter surface 41, an outer diameter surface 42, and having a plurality of ball holes 43 and a plurality of external connecting blocks 44, the ball holes 43 are arranged at intervals and penetrate the inner diameter surface 41 and the outer diameter surface 42 with a diameter larger than that of the balls 30, the retainer 40 is positioned between the inner ring 10 and the outer ring 20 such that the ball holes 43 are respectively sleeved with a plurality of balls 30, the external connecting blocks 44 are protruded on the outer diameter surface 42 between the ball holes 43 and respectively have two side contact surfaces 441, and each external block 44 is connected to the external block 44 by the two side contact surfaces 441 and the outer diameter surface 42 to form an oil guide groove B, the oil-impregnated lubricant is used between the inner ring body 10 and the outer ring body 20 to be guided into the bead holes 43, and each of the outer connecting blocks 44 has two abutting portions 442 protruding toward the outer ring body 20 at both ends thereof and an oil guide groove C recessed in each of the abutting portions 442, so that the outer ring body 20 only partially contacts the abutting portions 442 when colliding with the retainer 40 to reduce friction.
As described above, the retainer 40 of the present invention, which is disposed between the inner ring 10 and the outer ring 20 and respectively sleeved with the plurality of balls 30, is formed with the plurality of external blocks 44 protruding from the outer diameter surface 42 between the ball holes 43 and respectively connected with the two side contact surfaces 441 and the outer diameter surface 42 to form the oil guiding groove B, and the impregnated lubricant oil provided between the inner ring 10 and the outer ring 20 can be guided into the ball holes 43 along the arrow direction of fig. 6 to improve the lubrication; and by each external block 44 being located at two abutting portions 442 protruding from both ends of the external ring 20, when the retainer 40 collides with the external ring 20 during operation, the external ring 20 only partially contacts the abutting portions 442 of the external blocks 44 to reduce friction; and an oil guiding channel C recessed in each abutting portion 442 is used to further provide the external block 44 with an oil guiding and lubricating effect.
In the following, the features of the components of the present invention are further described in detail, in fig. 1 to 9, the retainer 40 has two side ring surfaces 45 connecting the inner diameter surface 41 and the outer diameter surface 42, and the two abutting portions 442 of the external block 44 are respectively located at a side close to the two side ring surfaces 45 and respectively have an abutting surface 4421 parallel to the outer diameter surface 42. The length L1 of the oil guide groove C is greater than the length L2 of the abutting portion 442 to divide each abutting surface 4421 into two parts, so that each abutting surface 4421 is divided into two parts by the oil guide groove C, thereby reducing the contact friction area when abutting against the outer ring body 20, avoiding the contact surface from being concentrated, and guiding the lubrication when the lubricating oil is brought into contact with each abutting surface 4421.
Further, the groove bottom of the oil guide groove C of the retainer 40 is inclined in a gradually deeper manner toward one end of the side ring surface 45, and the oil guide effect can be further improved.
As described above, the present invention can actually break through the dilemma and the disadvantages faced in the technical development of the ball bearing 100 and the retainer 40, and achieve the following advantages:
1. when the retainer 40 contacts the outer ring 20 during the operation of the bearing 100, the contacting portions 442 of the plurality of outer pads 44 are protruded at intervals on the outer diameter surface 42 to form local contact to reduce friction.
2. The plurality of external blocks 44 are protruded at intervals to form oil guiding grooves B therebetween, so that the ball bearing 100 can guide the lubricating oil contained therein into the ball holes 43 to improve the lubricating effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A ball bearing, comprising:
an inner ring body is provided with a rolling groove positioned on the outer ring surface;
the outer ring body is sleeved on the outer peripheral side of the inner ring body and provided with a rolling groove positioned on the inner ring surface, and the rolling groove form a rolling path oppositely;
a plurality of balls are arranged in the rolling path at intervals;
and a retainer, which is an annular body with an inner diameter surface and an outer diameter surface, and the retainer is provided with a plurality of ball holes and a plurality of external connecting blocks, the diameters of the ball holes are all larger than the diameters of the balls, the ball holes are arranged at intervals and penetrate through the inner diameter surface and the outer diameter surface, the retainer is positioned between the inner ring body and the outer ring body, the ball holes are respectively sleeved with the balls, the external connecting blocks are convexly arranged on the outer diameter surface between the ball holes and are respectively provided with two side connecting surfaces, and the two side connecting surfaces and the outer diameter surface between the external connecting blocks are respectively connected to form an oil guide groove for guiding impregnated lubricating oil to enter the ball holes, the external connecting blocks are respectively provided with two abutting parts which are convexly arranged at two ends of the external connecting blocks towards the outer ring body and an oil guide groove which is concavely arranged on the abutting parts, so that the outer ring body and the retainer only partially contact the abutting parts when colliding to reduce friction.
2. The ball bearing of claim 1 wherein the retainer has two side annular surfaces connecting the inner and outer diameter surfaces, the abutment portions of the outboard piece being located adjacent to one side of the two side annular surfaces and having an abutment surface parallel to the outer diameter surface.
3. The ball bearing of claim 2, wherein the length of the oil guide groove is greater than the length of the abutting portion to divide each abutting surface for reducing a contact friction area against the outer ring body and forming oil guide lubrication.
4. The ball bearing of claim 3, wherein the oil guide groove of the retainer has a groove bottom inclined toward one end of the side ring surface in a gradually deeper shape for improving an oil guide effect.
5. A retainer is characterized by being installed on a ball bearing and comprising an inner diameter surface, an outer diameter surface, a plurality of ball holes and a plurality of external connecting blocks, wherein the ball holes are arranged at intervals and penetrate through the inner diameter surface and the outer diameter surface, the external connecting blocks are convexly arranged on the outer diameter surface among the ball holes and respectively provided with two side connecting surfaces, the external connecting blocks and the external connecting blocks are respectively connected with the outer diameter surface through the two side connecting surfaces to form an oil guide groove, and each external connecting block is respectively provided with two abutting parts which are convexly arranged towards an outer ring body at two ends and an oil guide groove which is concavely arranged on each abutting part.
6. The retainer of claim 5, wherein the retainer has two side ring surfaces connecting the inner and outer diameter surfaces, and the two abutment portions of the outer block are respectively located near one side of the two side ring surfaces and respectively have an abutment surface parallel to the outer diameter surface.
7. The retainer as claimed in claim 6, wherein the oil guide groove has a length greater than that of the abutting portion to divide the abutting surfaces for reducing a contact friction area against the outer ring body and forming oil guide lubrication.
8. The retainer as claimed in claim 7, wherein the oil guide groove of the retainer has a groove bottom inclined toward one end of the side ring surface in a gradually deeper shape to improve oil guide effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821984.4U CN211398298U (en) | 2019-10-28 | 2019-10-28 | Ball bearing and retainer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821984.4U CN211398298U (en) | 2019-10-28 | 2019-10-28 | Ball bearing and retainer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398298U true CN211398298U (en) | 2020-09-01 |
Family
ID=72215811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921821984.4U Expired - Fee Related CN211398298U (en) | 2019-10-28 | 2019-10-28 | Ball bearing and retainer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398298U (en) |
-
2019
- 2019-10-28 CN CN201921821984.4U patent/CN211398298U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20211028 |