CN214404402U - Auxiliary tool for mounting cylindrical roller bearing on high-speed wire rod finishing mill - Google Patents
Auxiliary tool for mounting cylindrical roller bearing on high-speed wire rod finishing mill Download PDFInfo
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- CN214404402U CN214404402U CN202120419026.5U CN202120419026U CN214404402U CN 214404402 U CN214404402 U CN 214404402U CN 202120419026 U CN202120419026 U CN 202120419026U CN 214404402 U CN214404402 U CN 214404402U
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Abstract
The utility model discloses a high-speed wire rod finishing mill installation cylindrical roller bearing's auxiliary fixtures, including the installation cover, in the axial one end structure of installation cover has a plurality of roller positioning groove, a plurality of roller positioning groove evenly set up along the circumference of installation cover and respectively with the roller one-to-one of bearing, each roller assembles in corresponding roller positioning groove, and the installation cover has the motion to the bearing inner race along the axial of bearing inner race under external drive to constitute holder and bearing inner race and assemble in the outer lane along with the motion of roller. The utility model discloses ensured that the bearing is in the installation, and the roller is in the positioned state, can not take place the installation fish tail between roller, the raceway. The utility model is suitable for a technical field of high-speed wire rod finishing mill's cylindrical roller bearing installation.
Description
Technical Field
The utility model belongs to the technical field of high-speed wire rod finishing mill, specifically speaking relates to a high-speed wire rod finishing mill installs cylindrical roller bearing's auxiliary fixtures.
Background
When the high-speed wire rod finishing mill cylindrical roller bearing is installed, the inner ring combination is firstly installed on the shaft in a hot mode, then the outer ring is installed on the bearing seat or the box body, and finally the bearing seat and the box body are sleeved in a matched mode. In the process of fitting, because the roller in the inner ring combination is in a free state and cannot smoothly enter the bearing outer ring, scratches are generated on the surface of the roller and the surface of a raceway of the outer ring, and in the serious case, the scratches have great depth, so that the damage has great influence on the overall performance of the bearing. The damage can not be detected when the installation is finished, and only the larger damage can be found through vibration noise when the complete machine of the high-speed wire rod finishing mill runs in an experiment, and the bearing needs to be replaced by disassembling the finishing mill after the damage is found, so that a large amount of time, manpower and material resources are wasted; and minor damage is difficult to find during the test of the machine, and the bearing is damaged in advance after the on-line operation, thereby causing shutdown and production halt.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-speed wire rod finishing mill installation cylindrical roller bearing's auxiliary fixtures ensures that the bearing is in the installation, and the roller is in the positioned state, can not take place the installation fish tail between roller, the raceway.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a high-speed wire rod finishing mill installation cylindrical roller bearing's auxiliary fixtures, including the installation cover, in the axial one end structure of installation cover has a plurality of roller positioning groove, a plurality of roller positioning groove evenly set up along the circumference of installation cover and respectively with the roller one-to-one of bearing, each roller assembles in corresponding roller positioning groove, and the installation cover has the motion to the bearing inner race along the axial of bearing inner race under external drive to constitute holder and bearing inner race and assemble in the outer lane along with the motion of roller.
Furthermore, the installation sleeve is provided with an operation part and a positioning part which are connected into a whole, the positioning part is close to the bearing outer ring, the roller positioning groove is formed in the positioning part, and the end face of one end, connected with the positioning part, of the operation part is abutted to the corresponding end faces of the retainer and the bearing inner ring.
Furthermore, the operating part is provided with jackscrew holes at intervals along the circumferential direction, each jackscrew hole penetrates through the operating part along the axial direction of the operating part, and the operating part is connected with a jackscrew with one end connected with the end face of the retainer or the bearing inner ring through the jackscrew hole.
Furthermore, the number of the jackscrew holes is at least two, and the jackscrew holes are uniformly arranged along the circumferential direction of the operating part.
Furthermore, the connection part of the operation part and the positioning part is of a horn-shaped structure gradually expanding towards the direction of the outer ring of the bearing along the axis of the installation sleeve.
Further, the radius of the annular inner surface of the mounting sleeve close to one end of the bearing outer ring is slightly smaller than that of the annular inner surface of the mounting sleeve at the other end.
Further, a layer of silver or lead-tin-copper ternary alloy is electroplated on the surface of the mounting sleeve.
Furthermore, the mounting sleeve is made of an aluminum alloy material, a copper alloy material or nylon engineering plastic.
Furthermore, the mounting sleeve comprises two half clamping rings which are spliced with each other to form a complete sleeve-shaped structure.
Furthermore, two ends of the two half clamping rings which are spliced with each other are fastened through connecting bolts respectively.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the utility model discloses an installation cover is owing to adopt roller positioning groove, and the roller of bearing assembles in roller positioning groove, and then makes the roller of bearing have good location when the installation, not with bearing inner race raceway direct contact to the fish tail phenomenon that the installation caused between roller, the raceway has been avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of an embodiment of the present invention, a bearing outer ring, a bearing inner ring, and a retainer equipped with rollers;
fig. 3 is a schematic structural diagram of the embodiment of the present invention after being assembled with a bearing inner ring and a retainer assembled with rollers.
Labeling components: 1-operation part, 2-positioning part, 3-roller positioning groove, 4-connecting bolt, 5-jackscrew hole, 6-jackscrew, 7-outer ring, 8-retainer, 9-roller and 10-inner ring.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The utility model discloses an auxiliary fixtures of high-speed wire rod finishing mill installation cylindrical roller 9 bearing, as shown in figure 1, including the installation cover, axial one end structure at this installation cover has a plurality of roller positioning groove 3, and these roller positioning groove 3 evenly set up along the circumference of installation cover to respectively with the roller 9 one-to-one of bearing, every roller 9 assembles in corresponding roller positioning groove 3, and then has good location when making roller 9 assemble, skew and incline can not appear. The outer diameter of the mounting sleeve is dimensioned to the raceway of the outer ring 7 of the bearing and is slightly smaller than this, the outer diameter surface of the mounting sleeve being guided into the interior of the bearing by the raceway of the outer ring 7. The utility model has the advantages that: the utility model discloses an installation cover is owing to adopt roller positioning groove 3, and the roller 9 of bearing assembles in roller positioning groove 3, and then makes the roller 9 of bearing have good location when the installation, not with 7 raceway direct contact of bearing inner race to the fish tail phenomenon that the installation caused between roller 9, the raceway has been avoided.
As a preferred embodiment of the utility model, the outer diameter of the mounting sleeve is 0.02-0.05 mm smaller than the minimum size of the raceway of the outer ring 7, and the inner diameter of the mounting sleeve is 0.5-2.0 mm larger than the outer diameter of the retainer 8; the diameter of the roller positioning groove 3 is 0-0.010 mm smaller than that of the roller 9, the length of the roller positioning groove 3 is slightly larger than that of the roller 9 by 0.5-1 mm, the number of the roller positioning grooves 3 is the same as that of the rollers 9, and the diameter of the distributed center circle of the groove is the same as that of the center circle of the roller 9 group.
As a preferred embodiment of the present invention, as shown in fig. 3, the mounting sleeve has an operation portion 1 and a positioning portion 2 connected as a whole, the positioning portion 2 is close to the bearing outer ring 7, the roller positioning groove 3 is formed on the positioning portion 2, and an end face of the operation portion 1 connected with the positioning portion 2 abuts against a corresponding end face of the retainer 8 and the bearing inner ring 10. The operating part 1 is provided with jackscrew holes 5 at intervals along the circumferential direction, each jackscrew hole 5 penetrates through the operating part 1 along the axial direction of the operating part 1, the operating part 1 is connected with a jackscrew 6 through the jackscrew hole 5, and one end of the jackscrew 6 is abutted against the end face of the retainer 8 or the bearing inner ring 10. The number of the jackscrew holes 5 is at least two, and the jackscrew holes are uniformly arranged along the circumferential direction of the operating part 1, and the preferred number of the jackscrew holes 5 is four, so that the mounting sleeve is prevented from deflecting in the process of guiding out the mounting sleeve. In this embodiment, a layer of silver or a ternary alloy of lead, tin and copper is electroplated on the surface of the mounting sleeve, wherein typical components of the ternary alloy of lead, tin and copper are 0-20% of Sn, 0-5% of Cu and the balance of Pb. The mounting sleeve of the embodiment is made of an aluminum alloy material, a copper alloy material or nylon engineering plastic. The using method of this embodiment is, as shown in fig. 2-3, the specific implementation is as follows:
a) the bearing inner assembly (inner ring 10, cage 8 and roller 9) is hot-mounted on the shaft, and the bearing outer ring 7 is assembled behind the bearing seat or the box body;
b) the embodiment is arranged at one side of the bearing inner assembly;
c) aligning the roller positioning grooves 3 of the embodiment with the rollers 9 of the assembly in the bearing, and slightly pushing the embodiment into the bearing with force to enable each roller positioning groove 3 to completely enclose the corresponding roller 9;
d) the shaft, the bearing inner assembly and the mounting sleeve are combined to align with a raceway of a bearing outer ring 7, so that the outer surface of the mounting sleeve slowly enters the raceway of the bearing outer ring 7 under the guidance of the raceway until a bearing inner ring 10 is in place;
e) the mounting sleeve is ejected through the jackscrew hole 5 by the jackscrew 6.
Therefore, the present embodiment has the following advantages: (1) when the bearing is installed and sleeved, the roller 9 is well positioned; (2) when the bearing is installed and sleeved, the roller 9 and the outer ring 7 raceway cannot be directly contacted, so that scratches and scratches cannot be generated between the roller 9 and the outer ring 7 raceway; (3) the material adopted by the embodiment is softer, and the outer surface of the material is electroplated with softer metal, so that scratches and scratches cannot be generated on the raceway of the outer ring 7; (4) the bearing is not scratched during installation, and the operation reliability and the service life of the bearing are guaranteed.
As a preferred embodiment of the present invention, the radius of the annular inner surface of the mounting sleeve near one end of the bearing outer race 7 is slightly smaller than the radius of the other end. The joint of the operation part 1 and the positioning part 2 is in a horn-shaped structure gradually expanding towards the direction of the bearing outer ring 7 along the axis of the mounting sleeve. The advantages of this embodiment are: the inner surface of the mounting sleeve has a taper to facilitate entry of the mounting sleeve into the set of rollers 9 and compression of the rollers 9. The joint of the operation part 1 and the positioning part 2 is of a horn-shaped structure and also has certain taper, so that the installation sleeve is convenient to drive the bearing inner assembly to enter the raceway of the bearing outer ring 7
As a preferred embodiment of the present invention, as shown in fig. 1, the installation sleeve is a split structure, which includes two half-snap rings, the two half-snap rings are mutually spliced to form a complete sleeve-shaped structure, and the two ends of the two half-snap rings are respectively fastened by the connecting bolt 4. When the bearing assembling tool is used, the two half clamping rings are spanned on a shaft provided with an assembly in the bearing, the two half clamping rings are fastened and connected together by the connecting bolt 4 to form a sleeving structure, and then the bearing is sleeved; after the use is finished, the jackscrew 6 ejects out the sleeve-shaped structure, and finally the two halves of the snap rings are disassembled and stored for the next use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (10)
1. The utility model provides a high-speed wire rod finishing mill installation cylindrical roller bearing's auxiliary fixtures which characterized in that: the roller bearing comprises an installation sleeve, wherein a plurality of roller positioning grooves are constructed at one axial end of the installation sleeve, the roller positioning grooves are uniformly arranged along the circumferential direction of the installation sleeve and are respectively in one-to-one correspondence with rollers of a bearing, each roller is assembled in the corresponding roller positioning groove, and the installation sleeve has movement towards the outer ring of the bearing along the axial direction of the outer ring of the bearing under the drive of external force so as to form a retainer and a bearing inner ring which are assembled in the outer ring along with the movement of the rollers.
2. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 1, is characterized in that: the mounting sleeve is provided with an operation part and a positioning part which are connected into a whole, the positioning part is close to the bearing outer ring, the roller positioning groove is formed in the positioning part, and the end face of one end, connected with the positioning part, of the operation part is abutted to the end faces, corresponding to the retainer and the bearing inner ring, of the end face.
3. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 2, is characterized in that: and the operating part is provided with jackscrew holes at intervals along the circumferential direction, each jackscrew hole penetrates through the operating part along the axial direction of the operating part, and the operating part is connected with a jackscrew with one end connected to the end face of the retainer or the inner ring of the bearing through the jackscrew hole.
4. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 3, is characterized in that: the number of jackscrew holes is two at least, and evenly sets up along the circumference of operating portion.
5. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 2, is characterized in that: the connection part of the operation part and the positioning part is of a horn-shaped structure gradually expanding towards the direction of the outer ring of the bearing along the axis of the installation sleeve.
6. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 1, is characterized in that: the radius of the annular inner surface of the mounting sleeve close to one end of the bearing outer ring is slightly smaller than that of the other end of the bearing outer ring.
7. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 1, is characterized in that: and electroplating a layer of silver or lead-tin-copper ternary alloy on the surface of the mounting sleeve.
8. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 1, is characterized in that: the mounting sleeve is made of aluminum alloy material, copper alloy material or nylon engineering plastic.
9. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to any one of claims 1 to 8, wherein the auxiliary tool comprises: the mounting sleeve comprises two half clamping rings which are spliced with each other to form a complete sleeve-shaped structure.
10. The auxiliary tool for mounting the cylindrical roller bearing on the high-speed wire rod finishing mill according to claim 9, is characterized in that: and two ends of the half clamping rings which are spliced with each other are fastened through connecting bolts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120419026.5U CN214404402U (en) | 2021-02-25 | 2021-02-25 | Auxiliary tool for mounting cylindrical roller bearing on high-speed wire rod finishing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120419026.5U CN214404402U (en) | 2021-02-25 | 2021-02-25 | Auxiliary tool for mounting cylindrical roller bearing on high-speed wire rod finishing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404402U true CN214404402U (en) | 2021-10-15 |
Family
ID=78026460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120419026.5U Active CN214404402U (en) | 2021-02-25 | 2021-02-25 | Auxiliary tool for mounting cylindrical roller bearing on high-speed wire rod finishing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404402U (en) |
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2021
- 2021-02-25 CN CN202120419026.5U patent/CN214404402U/en active Active
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