CN218625050U - Deep groove ball bearing with key groove structure - Google Patents
Deep groove ball bearing with key groove structure Download PDFInfo
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- CN218625050U CN218625050U CN202223151451.4U CN202223151451U CN218625050U CN 218625050 U CN218625050 U CN 218625050U CN 202223151451 U CN202223151451 U CN 202223151451U CN 218625050 U CN218625050 U CN 218625050U
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- mounting
- key
- hole
- ball bearing
- inner circle
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Abstract
The utility model provides a take deep groove ball bearing of keyway structure, including inner circle, outer lane, a plurality of rolling elements of setting between the inner circle outer lane, the mounting is installed in the inner circle cooperation, the mounting is including the grafting portion, the installation department of setting on an inner circle terminal surface that correspond the centre bore grafting location of inner circle, be provided with the positioning mechanism of installation location between installation department and the inner circle terminal surface, grafting portion is provided with installs driven through-hole with the drive shaft cooperation, through-hole inner edge surface circumference evenly distributed have a plurality of be used for with key-type connection complex keyway, a plurality of the keyway runs through the setting along the axial to can make things convenient for the installation location effect of mounting through positioning mechanism, pass through the key-type connection cooperation of through-hole internal diameter and drive shaft external diameter, the drive is steady, and then avoids taking place the phenomenon of skidding between inner circle internal diameter and the drive shaft external diameter, convenient operation.
Description
Technical Field
The utility model relates to a take deep groove ball bearing of keyway structure.
Background
Deep groove ball bearings are one of the most widely used rolling bearings. It features small friction resistance and high rotation speed, and can be used for parts bearing radial load or combined load acted simultaneously in radial and axial directions, and also for parts bearing axial load, such as small power motor, automobile and tractor gear box, machine tool gear box, general machine and tool.
In a general deep groove ball bearing with a rotating inner ring, the inner diameter of the inner ring is in interference fit with the outer diameter of a driving shaft, the inner ring is driven to rotate by interference when the driving shaft rotates, and the installation mode may cause a slipping phenomenon between the inner diameter of the inner ring and the outer diameter of the driving shaft due to improper installation, insufficient interference and the like, so that the bearing cannot normally operate or even fails.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a take deep groove ball bearing of keyway structure.
In order to realize the above object, the utility model provides a take deep groove ball bearing of keyway structure, including inner circle, outer lane, a plurality of rolling elements of setting between the inner circle outer lane, the mounting is installed in the inner circle cooperation, the mounting is including the grafting portion, the installation department of setting on the inner circle terminal surface that correspond the centre bore grafting location of inner circle, be provided with the positioning mechanism of installation location between installation department and the inner circle terminal surface, grafting portion is provided with and installs driven through-hole with the drive shaft cooperation, through-hole inner edge surface circumference evenly distributed has a plurality of being used for and key-type connection complex keyway, and is a plurality of the keyway runs through the setting along the axial.
The utility model has the advantages that: the utility model discloses the structure passes through the grafting portion, the installation department of setting on inner circle terminal surface of the centre bore grafting location that correspond the inner circle on the mounting install, the rethread to the inner circle inner edge grafting portion sets up the keyway and the key-type connection cooperation of installing driven through-hole and through-hole inner edge surface circumference evenly distributed with the drive shaft cooperation, the key can be connected or be connected with whole keyways with partial keyway to thereby carry out the drive inner circle of drive shaft to the drive of mounting, and can make things convenient for the installation location effect of mounting through positioning mechanism, pass through the key-type connection cooperation of through-hole internal diameter and drive shaft external diameter, the drive is steady, and then avoids taking place the phenomenon of skidding between inner circle internal diameter and the drive shaft external diameter, convenient operation.
Furthermore, the positioning mechanism comprises a plurality of mounting holes formed in one end face of the inner ring and an insert arranged on the mounting surface of the mounting portion and connected with the mounting holes in an adaptive mode, and the mounting portion is a mounting ring adaptive to the shape of the end face of the inner ring.
Through adopting above-mentioned technical scheme, the plug-in components of pegging graft through mounting hole and mounting hole cooperation can improve the fixed effect of mounting, prevent breaking away from of mounting in the course of the work, and the installation department can improve an organic whole nature for the collar with inner circle terminal surface shape looks adaptation, avoids the unstability when the drive shaft drive rotates.
Further, the openings at the two ends of the key groove are arranged to be gradually enlarged outwards in the axial direction.
Through adopting above-mentioned technical scheme, the gradual big setting of keyway can make things convenient for the direction installation effect of key, can reduce the installation time to between the keyway when the installation key.
Furthermore, a second mounting hole which penetrates through the mounting part is formed in the mounting part, a bolt is arranged in the second mounting hole in a matched mode, and when the second mounting hole is aligned with the mounting hole, the bolt is matched with the mounting hole to mount the fixed mounting part.
Through adopting above-mentioned technical scheme, can correspond bolt and mounting hole and install when second mounting hole aligns with the mounting hole to the installation effect of auxiliary positioning mechanism to the mounting improves the firm degree of mounting.
Furthermore, a plurality of protruding parts are formed in the through holes of the inserting part through the plurality of key grooves, and the protruding parts are in butt fit with the outer surface of the driving shaft.
Through adopting above-mentioned technical scheme, the bulge is by through a plurality of keyway forms and the butt can reduce the clearance between during operation drive shaft and the mounting, avoids rocking because of having the clearance to produce in the drive process, improves stability to improve the precision.
Furthermore, the connecting part of the inserting part and the mounting part is chamfered to form a guide inclined surface for guiding the driving shaft.
By adopting the technical scheme, the chamfering treatment of the connecting part can improve the guiding effect in the installation process of the driving shaft, avoid the abrasion of the outer surface of the driving shaft and save the time for installing the driving shaft.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic diagram of an explosion structure in an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings: as shown in fig. 1-2, the deep groove ball bearing with the key groove structure includes an inner ring 1, an outer ring 2, and a plurality of rolling elements arranged between the inner ring 1 and the outer ring 2, the inner ring 1 is provided with a fixing member 3 in a matching manner, the fixing member 3 includes an insertion portion 5 corresponding to a central hole 4 of the inner ring 1 for insertion positioning, and an installation portion 6 arranged on one end surface of the inner ring 1, a positioning mechanism 7 for installation positioning is arranged between the installation portion 6 and the end surface of the inner ring 1, the insertion portion 5 is provided with a through hole 8 for installation driving in a matching manner with a driving shaft, a plurality of key grooves 9 for key connection matching are evenly distributed on the inner edge surface of the through hole 8 in the circumferential direction, and the plurality of key grooves 9 are arranged in an axial direction in a penetrating manner.
The positioning mechanism 7 comprises a plurality of mounting holes 10 arranged on one end face of the inner ring 1 and a plug-in 11 arranged on the mounting face of the mounting portion 6 and connected with the mounting holes 10 in an adaptive mode, and the mounting portion 6 is a mounting ring matched with the end face of the inner ring 1 in shape. The middle of the installation Kong Haineng is provided with a convex ring, the middle of the plug-in is provided with a second convex ring, and the second convex ring can be in interference fit from one side of the convex ring to the other side through press fitting, so that the positioning mechanism is fixed.
The two end openings 12 of the key groove 9 are arranged to be gradually enlarged outwards in the axial direction. The gradually enlarging device can also be arranged into two inclined planes to form a shape with an enlarged opening, so that the key and the key groove can be conveniently inserted and matched.
The second mounting hole 13 that runs through is seted up to installation department 6, second mounting hole 13 cooperation is provided with bolt 14, when second mounting hole 13 aligns with mounting hole 10 bolt 14 with mounting hole 10 cooperation installation fixed mounting portion 6.
The through hole 8 of the insertion part 5 forms a plurality of convex parts 15 through a plurality of key slots 9, and the convex parts 15 form abutting fit on the outer surface of the driving shaft. The convex part 15 is abutted on the outer surface of the driving shaft, so that the position of the driving shaft can be limited and the driving shaft can be kept at the center of the through hole, and the driving shake instability generated when the driving shaft is not assembled at the center is prevented.
The connection portion of the insertion portion 5 and the mounting portion 6 is chamfered to form a guide slope for guiding the drive shaft. The chamfering of the connection section enables the insertion opening of the spigot to be cut at a position corresponding to the drive shaft, so that a certain guiding action can be performed when the drive shaft is inserted, so that the drive shaft slides into the through hole 8 of the spigot 5.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a take deep groove ball bearing of keyway structure which characterized in that: the inner ring is provided with a fixing piece in a matched mode, the fixing piece comprises an inserting portion and an installing portion, the inserting portion corresponds to a center hole of the inner ring and is used for inserting and locating, the installing portion is arranged on one end face of the inner ring, a locating mechanism for installing and locating is arranged between the installing portion and the end face of the inner ring, the inserting portion is provided with a through hole matched with a driving shaft to install and drive, a plurality of key grooves matched with key connection are evenly distributed in the circumferential direction of the surface of the inner edge of the through hole, and the key grooves penetrate through the inner ring in the axial direction.
2. The deep groove ball bearing with a key groove structure as claimed in claim 1, wherein: the positioning mechanism comprises a plurality of mounting holes formed in one end face of the inner ring and an insert arranged on the mounting face of the mounting portion and connected with the mounting holes in an inserting mode, and the mounting portion is a mounting ring matched with the end face of the inner ring in shape.
3. The deep groove ball bearing with a key groove structure according to claim 1 or 2, characterized in that: the openings at the two ends of the key groove are arranged outwards gradually.
4. The deep groove ball bearing with a key groove structure as claimed in claim 2, wherein: the second mounting hole that runs through is seted up to the installation department, the cooperation of second mounting hole is provided with the bolt, when second mounting hole aligns with the mounting hole the bolt with mounting hole cooperation installation fixed mounting portion.
5. The deep groove ball bearing with a key groove structure as claimed in claim 4, wherein: the through hole of the insertion part forms a plurality of protruding parts through a plurality of key grooves, and the protruding parts form butt joint matching with the outer surface of the driving shaft.
6. The deep groove ball bearing with a key groove structure as claimed in claim 2, wherein: and the connecting part of the inserting part and the mounting part is chamfered to form a guide inclined plane which plays a role of guiding the driving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223151451.4U CN218625050U (en) | 2022-11-24 | 2022-11-24 | Deep groove ball bearing with key groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223151451.4U CN218625050U (en) | 2022-11-24 | 2022-11-24 | Deep groove ball bearing with key groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625050U true CN218625050U (en) | 2023-03-14 |
Family
ID=85450877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223151451.4U Active CN218625050U (en) | 2022-11-24 | 2022-11-24 | Deep groove ball bearing with key groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625050U (en) |
-
2022
- 2022-11-24 CN CN202223151451.4U patent/CN218625050U/en active Active
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