CN210769821U - Combined bearing and assembling die thereof - Google Patents
Combined bearing and assembling die thereof Download PDFInfo
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- CN210769821U CN210769821U CN201921565276.9U CN201921565276U CN210769821U CN 210769821 U CN210769821 U CN 210769821U CN 201921565276 U CN201921565276 U CN 201921565276U CN 210769821 U CN210769821 U CN 210769821U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a combination bearing and assembling die thereof, combination bearing includes bearing inner race, first bearing inner race, second bearing inner race and holder, first bearing inner race and second bearing inner race are installed side by side in the bearing inner race, first bearing inner race and second bearing inner race can dismantle fixed connection through the connecting piece, it is equipped with a plurality of first steel balls to pack between first bearing inner race and the bearing inner race, it is equipped with a plurality of second steel balls to pack between second bearing inner race and the bearing inner race; the assembling die comprises a first assembling die and a second assembling die, the first assembling die comprises a base and a steel ball supporting body, a central hole is formed in the steel ball supporting body, a second positioning groove and a mounting hole which are distributed annularly are formed in the second assembling die, and the first positioning groove and the second positioning groove are matched with the bearing outer ring. The combined die can realize smooth assembly of the combined bearing and has higher assembly efficiency.
Description
Technical Field
The utility model relates to a combination bearing and assembling die thereof.
Background
The existing combined bearing is of a single inner ring structure, namely, the inner ring is integral, and cannot meet higher requirements in performance and service life. In performance, because the bearing is large in size and high in precision, when steel balls are installed in a single inner ring structure according to a common assembly method, the steel balls can be scratched, and the vibration noise performance and even the rotation precision of the bearing are further influenced; in the service life, the existing inner ring is integral, the contact angle is fixed, the pretightening force cannot be adjusted, the temperature rise and the vibration can be increased in the working process, and the service life of the bearing is further influenced. It is therefore necessary to develop special combination bearings for specific applications.
And to obtain a bearing product, the assembly of the bearing product is often completed without auxiliary tools, and the auxiliary tools play an important role in the assembly of the bearing. The design and application of the auxiliary tool greatly influence the assembly of the bearing, and the quality of the auxiliary tool directly influences the processing precision and efficiency of a bearing product. Therefore, an adaptive assembly mold is required to improve the assembly efficiency and the product accuracy of the combined bearing.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that prior art exists, the utility model provides a combination bearing and assembling die thereof realizes combination bearing's high efficiency, high accuracy equipment through assembling die, and this combination bearing that the assembly obtained can have better mechanical properties and rotation accuracy, is applicable to the use occasion to combination bearing high performance requirement.
For realizing above-mentioned mesh, the utility model discloses the technical scheme who takes is a combination bearing, including bearing inner race, bearing inner race and holder, bearing inner race and bearing inner race rolling connection, the holder is installed between bearing inner race and the bearing inner race, the bearing inner race has two, is first bearing inner race and second bearing inner race respectively, first bearing inner race and second bearing inner race are installed side by side in the bearing inner race, fixed connection can be dismantled through the connecting piece to first bearing inner race and second bearing inner race, a plurality of first steel balls have been filled between first bearing inner race and the bearing inner race, a plurality of second steel balls have been filled between second bearing inner race and the bearing inner race, first steel ball and second steel ball are all installed in the holder.
In an embodiment of the present invention, two rows of channels are disposed on the inner hole wall of the bearing outer ring, and are respectively a first channel and a second channel, the first channel and the second channel are parallel and all follow the inner hole wall annular distribution of the bearing outer ring.
In an embodiment of the present invention, the holder is an annular ring, the two end faces of the annular ring are respectively provided with a first holding groove and a second holding groove, the first holding groove is used for mounting the first steel ball, and the second holding groove is used for mounting the second steel ball.
In an embodiment of the present invention, the first receiving groove includes a plurality of first pockets, the second receiving groove includes a plurality of second pockets, the first pockets and the second pockets are all followed the holder circumference evenly distributed.
In an embodiment of the present invention, a first limiting groove is disposed on the first bearing inner ring, and the first limiting groove is an annular groove distributed on an outer surface of the first bearing inner ring; a second limiting groove is formed in the second bearing inner ring and is an annular groove distributed on the outer surface of the second bearing inner ring; the first limiting groove is matched with the first channel, and the second limiting groove is matched with the second channel.
In an embodiment of the present invention, the first bearing inner ring has a first mounting hole, the second bearing inner ring has a second mounting hole, the second mounting hole is communicated with the first mounting hole, and the connecting member is mounted in the first mounting hole and the second mounting hole.
A bearing assembling die is used for assembling the combined bearing and comprises a first assembling die and a second assembling die, wherein the first assembling die comprises a base and a steel ball supporting body, the steel ball supporting body is fixedly connected with the base, the steel ball supporting body protrudes out of the middle of the base, the base is provided with a first positioning groove and a first mounting platform which are distributed annularly, the first mounting platform is an annular step and used for placing a retainer, a central hole is formed in the steel ball supporting body, and the central hole is a blind hole; and the second assembling die is provided with a second positioning groove and a mounting hole which are distributed annularly, the mounting hole is a through hole, and the first positioning groove and the second positioning groove are matched with the bearing outer ring.
In an embodiment of the present invention, the diameter of the central hole is smaller than the diameter of the first bearing inner ring big end and larger than the diameter of the first bearing inner ring small end.
In an embodiment of the present invention, the upper end surface of the steel ball supporting body is provided with a steel ball supporting surface for supporting the first steel ball.
In an embodiment of the present invention, the diameter of the mounting hole is greater than or equal to the diameter of the second bearing inner ring big end.
The technical scheme has the following beneficial effects:
the inner ring of the utility model adopts a two-half structure, which is convenient for assembly, can not scratch the steel ball during assembly, and ensures the vibration noise performance of the bearing and the rotation precision after installation; and secondly, the contact angle of the double-groove bearing with the integral inner ring is fixed, and the double-half inner ring structure can be used for loosening and tightening bolts according to needs and adjusting the contact angle, namely the pretightening force, so that a proper gap is formed between the bearing groove and the steel ball, the vibration noise of the bearing and a system is reduced, the rotation precision is improved, and the service life is prolonged. The combined bearing has good performance and high precision, and is suitable for use occasions with high requirements on the rotation precision of the bearing, such as certain special equipment.
Through carrying out special design on the combined mould structure, adopting first assembly mould and second assembly mould to pack first steel ball and second steel ball respectively into first bearing inner race and second bearing inner race, the equipment is more convenient. The design of the steel ball support body improves the accuracy of assembling and positioning, thereby improving the sleeve combining efficiency. Through being used for the installation of first bearing inner race with the centre bore on the steel ball support piece, be the blind hole with this centre bore design simultaneously for the base of first assembly mould is the entity structure, and first steel ball rolls the outside when preventing to assemble, has guaranteed the cleanliness of steel ball, avoids impaired. Furthermore, the design of the mounting hole on the second assembly die not only ensures the mounting of the inner ring of the second bearing, but also reduces the weight of the die and is convenient for mounting and operating. The utility model discloses an assembling die has realized having higher packaging efficiency simultaneously to the smooth equipment of combination bearing.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a first bearing inner race in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of the inner race of the second bearing in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a retainer according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a bearing outer ring in embodiment 1 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 7 is a schematic structural view of a first assembly die in embodiment 2 of the present invention;
fig. 8 is a schematic structural view of a second assembly die in embodiment 2 of the present invention.
Description of reference numerals: the bearing inner race comprises a bearing outer ring 10, a first bearing inner ring 21, a second bearing inner ring 22, a retainer 30, a first limiting groove 110, a second limiting groove 120, a first mounting hole 31, a second mounting hole 32, a first steel ball 41, a second steel ball 42, a first pocket 51, a second pocket 52, a bolt 60, a first channel 71, a second channel 72, a base 100, a steel ball support body 111, a steel ball support surface 113, a first assembling die 1, a second assembling die 2, a first positioning groove 101, a first mounting table 102, a central hole 103, a second positioning groove 202 and a mounting hole 203.
Detailed Description
The invention will be further described with reference to the following examples and figures 1 to 8.
Example 1
A combined bearing comprises a bearing outer ring 10, bearing inner rings and a retainer 30, wherein the bearing inner rings are in rolling connection with the bearing outer ring 10, the retainer 30 is arranged between the bearing outer ring 10 and the bearing inner rings, the number of the bearing inner rings is two, the two bearing inner rings are respectively a first bearing inner ring 21 and a second bearing inner ring 22, the first bearing inner ring 21 and the second bearing inner ring 22 are arranged in the bearing outer ring 10 side by side, and the first bearing inner ring 21 and the second bearing inner ring 22 are detachably and fixedly connected through a connecting piece. In this embodiment, the first bearing inner race 21 is provided with first mounting holes 31, the first mounting holes 31 are circumferentially distributed on the first bearing inner race 21, the second bearing inner race 22 is provided with second mounting holes 32, and the second mounting holes 32 are circumferentially distributed on the second bearing inner race 22. The second mounting hole 32 communicates with the first mounting hole 31, and the connector is mounted in the first and second mounting holes 31 and 32.
In this embodiment, the first mounting hole 31 is an internal threaded hole, the second mounting hole 32 is an unthreaded hole, the connecting member is a bolt 60 with an external thread, and the first bearing inner ring 21 and the second bearing inner ring 22 are fixed together by the bolt 60. A plurality of first steel balls 41 are filled between the first bearing inner ring 21 and the bearing outer ring 10, a plurality of second steel balls 42 are filled between the second bearing inner ring 22 and the bearing outer ring 10, and the first steel balls 41 and the second steel balls 42 are both installed in the retainer 30 and used as rolling bodies for enabling the bearing inner ring and the bearing outer ring 10 to rotate relatively.
Two rows of channels, namely a first channel 71 and a second channel 72, are arranged on the hole wall of the inner hole of the bearing outer ring 10, wherein the first channel 71 and the second channel 72 are parallel to each other, are arc-shaped grooves and are distributed along the hole wall of the inner hole of the bearing outer ring 10 in an annular manner. The holder 30 is an annular frame ring, a first accommodating groove and a second accommodating groove are respectively arranged on two end faces of the annular frame ring, the first accommodating groove is used for installing the first steel ball 41, and the second accommodating groove is used for installing the second steel ball 42. The integrated retainer 30 is designed to enable the bearing to be stressed more stably during working and to be more convenient to assemble. The first receiving groove includes a plurality of first pockets 51, the second receiving groove includes a plurality of second pockets 52, first pockets 51 and second pockets 52 are all followed the holder 30 circumference evenly distributed. One first steel ball 41 is placed in each first pocket 51 and one second steel ball 42 is placed in each second pocket 52. In this embodiment, the first pocket 51 and the second pocket 52 are identical, and the first steel ball 41 and the second steel ball 42 are identical.
A first limiting groove 110 is formed in the first bearing inner ring 21, and the first limiting groove 110 is an annular groove distributed on the outer surface of the first bearing inner ring 21; the second bearing inner ring 22 is provided with a second limiting groove 120, and the second limiting groove 120 is also an annular groove distributed on the outer surface of the second bearing inner ring 22. The first limiting groove 110 and the second limiting groove 120 are both arc-shaped grooves. One side of the arc-shaped groove on the first bearing inner ring 21 and the second bearing inner ring 22 is provided with a steel ball retaining shoulder which is respectively used for axially positioning the first steel ball 41 and the second steel ball 42. One end of the first steel ball 41 is matched with the first bearing inner ring 21, that is, one end of the first steel ball 41 is located in the first limiting groove 110, and the first steel ball 41 is in rolling connection with the first bearing inner ring 21; the other end of the first steel ball 41 is matched with the bearing outer ring 10, that is, the other end of the first steel ball 41 is located in the first channel 71, and the first steel ball 41 is in rolling connection with the bearing outer ring 10. One end of the second steel ball 42 is matched with the second bearing inner ring 22, that is, one end of the second steel ball 42 is located in the second limiting groove 120, the second steel ball 42 is in rolling connection with the second bearing inner ring 22, the other end of the second steel ball 42 is matched with the bearing outer ring 10, that is, the other end of the second steel ball 42 is located in the second channel 72, and the second steel ball 42 is in rolling connection with the bearing outer ring 10.
Example 2
A bearing assembling die for assembling the combination bearing described in embodiment 1, said assembling die comprising a first assembling die 1 and a second assembling die 2, as shown in fig. 6-8, said first assembling die 1 and said second assembling die 2 having the same outer diameter and being a set of dies. The first assembling die 1 comprises a base 100 and a steel ball supporting body 111, the steel ball supporting body 111 and the base 100 are of an integral structure, and the steel ball supporting body 111 protrudes out of the middle of the base 100. The base 100 is provided with a first positioning groove 101 and a first mounting platform 102 which are distributed in an annular mode, the two sides of the first positioning groove 101 are of platform structures, the height of an outer side platform is larger than that of an inner side platform, so that the bearing outer ring 10 and the retainer 30 which are placed in the first assembly die 1 can be better supported, and the outer side platform is the platform which is far away from one side of the central hole and is formed by the first positioning groove 101. The first mounting platform 102 is an annular step for placing the retainer 30, and the steel ball support 111 is used to accurately position the retainer 30. The second assembly die 2 is provided with a second positioning groove 202 and a mounting hole 203 which are distributed annularly, and the mounting hole 203 is a through hole, so that the weight of the die is reduced, and the die is more convenient to take. The first positioning groove 101 and the second positioning groove 202 are used for placing the bearing outer ring 10 when the combined bearing is assembled, and positioning the bearing outer ring 10.
The upper end surface of the steel ball support body 111 is provided with a steel ball support surface 113, and the steel ball support surface 113 is an inclined plane or a spherical surface. During assembly, the steel ball supporting surface is used for supporting the first steel ball 41 and pushing the first steel ball 41 into the arc-shaped groove of the first channel 71. The steel ball support 111 is provided with a central hole 103, and the central hole 103 is a blind hole, i.e. the base 100 is a solid structure, so as to prevent the second steel ball 42 from rolling out when the second steel ball 42 is loaded. In this embodiment, the aperture of the central hole is smaller than the diameter of the large end of the first bearing inner ring 21 and larger than the diameter of the small end of the first bearing inner ring 21, so as to facilitate the installation of the first bearing inner ring 21. And the diameter of the mounting hole is larger than or equal to the diameter of the large end of the second bearing inner ring 22, so that the second bearing inner ring 22 can be mounted conveniently.
The utility model discloses a carry out specific structural design to the composite mold, can not only realize composite bearing's high-efficient installation smoothly, and can guarantee the precision of assembly, have important meaning to composite bearing's production.
The above-mentioned embodiments are only used for explaining the present invention, and not for limiting the present invention, and any changes and substitutions made by the present invention without creative efforts fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides a combination bearing, its characterized in that, includes bearing inner race, bearing inner race and holder, bearing inner race and bearing inner race rolling connection, the holder is installed between bearing inner race and the bearing inner race, the bearing inner race has two, is first bearing inner race and second bearing inner race respectively, first bearing inner race and second bearing inner race are installed side by side in the bearing inner race, fixed connection can be dismantled through the connecting piece to first bearing inner race and second bearing inner race, a plurality of first steel balls are packed into between first bearing inner race and the bearing inner race, a plurality of second steel balls are packed into between second bearing inner race and the bearing inner race, first steel ball and second steel ball are all installed in the holder.
2. The combination bearing of claim 1, wherein the inner bore wall of the outer race has two rows of grooves, namely a first groove and a second groove, and the first groove and the second groove are parallel and are circumferentially distributed along the inner bore wall of the outer race.
3. The combination bearing of claim 2, wherein the retainer is an annular ring, and a first receiving groove and a second receiving groove are respectively formed on two end faces of the annular ring, the first receiving groove is used for mounting the first steel ball, and the second receiving groove is used for mounting the second steel ball.
4. The combination bearing of claim 3, wherein the first receiving groove comprises a plurality of first pockets, the second receiving groove comprises a plurality of second pockets, and the first pockets and the second pockets are evenly distributed along the circumferential direction of the cage.
5. The combination bearing of claim 4, wherein the first bearing inner race is provided with a first limiting groove, and the first limiting groove is an annular groove distributed on the outer surface of the first bearing inner race; a second limiting groove is formed in the second bearing inner ring and is an annular groove distributed on the outer surface of the second bearing inner ring; the first limiting groove is matched with the first channel, and the second limiting groove is matched with the second channel.
6. The combination bearing of any one of claims 1 to 5, wherein the first bearing inner race defines a first mounting hole, the second bearing inner race defines a second mounting hole, the second mounting hole communicates with the first mounting hole, and the connecting member is mounted in the first mounting hole and the second mounting hole.
7. A bearing assembling die is used for assembling the combined bearing of any one of claims 1 to 6, and comprises a first assembling die and a second assembling die, wherein the first assembling die comprises a base and a steel ball supporting body, the steel ball supporting body is fixedly connected with the base, the steel ball supporting body protrudes out of the middle of the base, the base is provided with a first positioning groove and a first mounting platform which are distributed annularly, the first mounting platform is an annular step and used for placing the retainer, the steel ball supporting body is provided with a central hole, and the central hole is a blind hole; and the second assembling die is provided with a second positioning groove and a mounting hole which are distributed annularly, the mounting hole is a through hole, and the first positioning groove and the second positioning groove are matched with the bearing outer ring.
8. The bearing assembling die as claimed in claim 7, wherein the bore diameter of said center bore is smaller than the diameter of the large end of said first bearing inner race and larger than the diameter of the small end of said first bearing inner race.
9. The bearing assembling die as claimed in claim 8, wherein the upper end surface of the steel ball supporting body is provided with a steel ball supporting surface for supporting the first steel ball.
10. The bearing assembling die as claimed in any one of claims 7 to 9, wherein the diameter of the mounting hole is larger than or equal to the diameter of the large end of the inner race of the second bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565276.9U CN210769821U (en) | 2019-09-19 | 2019-09-19 | Combined bearing and assembling die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565276.9U CN210769821U (en) | 2019-09-19 | 2019-09-19 | Combined bearing and assembling die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210769821U true CN210769821U (en) | 2020-06-16 |
Family
ID=71060220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921565276.9U Active CN210769821U (en) | 2019-09-19 | 2019-09-19 | Combined bearing and assembling die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210769821U (en) |
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2019
- 2019-09-19 CN CN201921565276.9U patent/CN210769821U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Combined bearing and its assembly die Effective date of registration: 20210628 Granted publication date: 20200616 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: Bahuan Technology Group Co.,Ltd. Registration number: Y2021330000681 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231016 Granted publication date: 20200616 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: Bahuan Technology Group Co.,Ltd. Registration number: Y2021330000681 |