CN209875728U - Combined bearing - Google Patents
Combined bearing Download PDFInfo
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- CN209875728U CN209875728U CN201920066069.2U CN201920066069U CN209875728U CN 209875728 U CN209875728 U CN 209875728U CN 201920066069 U CN201920066069 U CN 201920066069U CN 209875728 U CN209875728 U CN 209875728U
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- bearing
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- inner ring
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- middle ring
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Abstract
The utility model relates to a modular bearing belongs to bearing technical field. The steel ball bearing comprises a bearing outer ring and a bearing inner ring, wherein a first middle ring and a second middle ring are arranged between the bearing outer ring and the bearing inner ring, rolling bodies are respectively arranged on the inner side and the outer side of the first middle ring, and a first retainer used for arranging a first steel ball is arranged between the inner side and the inner ring of the second middle ring. And a plurality of third middle rings are further arranged between the first middle ring and the bearing inner ring, and second retainers for arranging second steel balls are respectively arranged between the third middle rings and the bearing inner ring. A first retainer for arranging a first steel ball is arranged between the inner side of the first middle ring and the bearing inner ring, and a cross roller is arranged between the outer side of the first middle ring and the bearing outer ring. The high-precision machining equipment has the advantages that the production precision of the high-precision machining equipment is guaranteed by combining the advantages of the three bearings, the precision of products is improved, the installation error between parts is reduced, the structure is compact, and the high-precision machining equipment can bear loads in several directions simultaneously.
Description
Technical Field
The utility model relates to a modular bearing belongs to bearing technical field.
Background
The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance. The ball screw is installed on high-precision processing equipment after being assembled through various bearings, and the production precision of the equipment is inevitably reduced by the method, so that the product precision is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a modular bearing is provided to above-mentioned prior art, guarantees the production precision of high-accuracy processing equipment, improves the precision of product, reduces installation error between the spare part.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a combined bearing, includes bearing inner race and bearing inner race, set up first well circle and second well circle between bearing inner race and the bearing outer race, the inboard and the outside of first well circle are equipped with the rolling element respectively, be equipped with the first holder that is used for setting up first steel ball between the inboard of second well circle and the bearing inner race.
And a plurality of third middle rings are further arranged between the first middle ring and the bearing inner ring, and second retainers for arranging second steel balls are respectively arranged between the third middle rings and the bearing inner ring.
A first retainer for arranging a first steel ball is arranged between the inner side of the first middle ring and the bearing inner ring, and a cross roller is arranged between the outer side of the first middle ring and the bearing outer ring.
The bearing outer ring is provided with a groove for arranging a plug, the plug is fixedly arranged on the crossed roller, and the plug is fixed on the bearing outer ring through a bolt.
The first retainer is an angular contact structural member, and the second retainer is a crown-shaped structural member.
Compared with the prior art, the utility model has the advantages of: a combined bearing combines a deep groove ball bearing, an angular contact ball bearing and a cross roller into a whole, not only combines the advantages of three bearings to ensure the production precision of high-precision processing equipment, improves the precision of products, reduces the installation error between parts, but also has compact structure and can simultaneously improve the axial and radial load bearing capacity.
Drawings
Fig. 1 is a schematic view of a combined bearing according to an embodiment of the present invention;
fig. 2 is a side view of a combined bearing according to an embodiment of the present invention;
in the figure, 1, a bearing outer ring, 2 plugs, 3 crossed rollers, 4 first middle rings, 5 second middle rings, 6 third middle rings, 7 crown type retainers, 8 second steel balls, 9 bearing inner rings, 10 first steel balls, 11 angular contact retainers and 12 conical inner hexagon bolts.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the combined bearing in this embodiment includes a bearing outer ring 1 and a bearing inner ring 9, a first middle ring 4 and a second middle ring 5 are disposed between the bearing outer ring 1 and the bearing inner ring 9, the first middle ring 4 and the second middle ring 5 are axially disposed in parallel, an angular contact retainer 11 is disposed between an inner side of the first middle ring 4 and the bearing inner ring 9, a first steel ball 10 with a diameter of 3.175 is disposed on the angular contact retainer 11, a cross roller 3 is disposed between an outer side of the first middle ring 4 and the bearing outer ring 1, a groove is disposed on the bearing outer ring 1 above the cross roller 3, a plug 2 is disposed in the groove, and the plug 2 is fixed in the bearing outer ring 1 by a tapered hexagon socket head bolt 12 to fix the cross roller 3; an angular contact retainer 11 is arranged between the inner side of the second middle ring 5 and the bearing inner ring 9, and a first steel ball 10 with the diameter of 3.175 is arranged on the angular contact retainer 11.
And 2 third middle rings 6 are further arranged between the first middle ring 4 and the bearing inner ring 9, the third middle rings 6 are arranged in parallel in the axial direction, crown-shaped retainers 7 are respectively arranged between the third middle rings 6 and the bearing inner ring 9, and second steel balls 8 with the diameter of 2.778 are arranged on the crown-shaped retainers 7.
The combined bearing combines a deep groove ball bearing, an angular contact ball bearing and a cross roller bearing together, is convenient to install and compact in structure, ensures the production precision of high-precision processing equipment, and has the characteristics of high rotation precision, high rigidity, high rotating speed, capability of simultaneously bearing loads in several directions and the like.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (6)
1. A combined bearing is characterized in that: the steel ball bearing is characterized by comprising a bearing outer ring (1) and a bearing inner ring (9), a first middle ring (4) and a second middle ring (5) are axially arranged between the bearing outer ring (1) and the bearing inner ring (9) in parallel, rolling bodies are respectively arranged on the inner side and the outer side of the first middle ring (4), and a first retainer used for arranging a first steel ball (10) is arranged between the inner side of the second middle ring (5) and the bearing inner ring (9).
2. A modular bearing according to claim 1, wherein: a plurality of third middle rings (6) are further arranged between the first middle ring (4) and the bearing inner ring (9), and second retainers for arranging second steel balls (8) are respectively arranged between the third middle rings (6) and the bearing inner ring (9).
3. A modular bearing according to claim 1, wherein: a first retainer for arranging a first steel ball (10) is arranged between the inner side of the first middle ring (4) and the bearing inner ring (9), and a cross roller (3) is arranged between the outer side of the first middle ring (4) and the bearing outer ring (1).
4. A modular bearing according to claim 1, wherein: the bearing outer ring (1) is provided with a groove for arranging the plug (2), the plug (2) is fixedly arranged on the crossed roller (3), and the plug (2) is fixed on the bearing outer ring (1) through a bolt.
5. A combined bearing according to claim 1 or 3, characterised in that: the first retainer is an angular contact structure.
6. A modular bearing according to claim 2, wherein: the second retainer is a crown-shaped structural member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066069.2U CN209875728U (en) | 2019-01-16 | 2019-01-16 | Combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066069.2U CN209875728U (en) | 2019-01-16 | 2019-01-16 | Combined bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875728U true CN209875728U (en) | 2019-12-31 |
Family
ID=68951397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920066069.2U Active CN209875728U (en) | 2019-01-16 | 2019-01-16 | Combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007214A (en) * | 2021-03-09 | 2021-06-22 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
-
2019
- 2019-01-16 CN CN201920066069.2U patent/CN209875728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007214A (en) * | 2021-03-09 | 2021-06-22 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
| CN113007214B (en) * | 2021-03-09 | 2022-04-01 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
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