CN215980502U - Boring shaft supporting device - Google Patents
Boring shaft supporting device Download PDFInfo
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- CN215980502U CN215980502U CN202121606714.9U CN202121606714U CN215980502U CN 215980502 U CN215980502 U CN 215980502U CN 202121606714 U CN202121606714 U CN 202121606714U CN 215980502 U CN215980502 U CN 215980502U
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- bearing
- boring shaft
- inner sleeve
- wall
- boring
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Abstract
The utility model discloses a boring shaft supporting device, belongs to the field of boring processing devices, and solves the problems of high abrasion, trouble in replacing a copper sleeve and cost caused by the fact that the copper sleeve is adopted to support a boring shaft in the prior art. The supporting device comprises a bearing inner sleeve, a bearing and a bearing seat, wherein the bearing sleeve is arranged in the middle of the bearing inner sleeve, the bearing seat is arranged on the periphery of the bearing, and the two ends of the bearing inner sleeve are respectively in threaded connection with a first locking nut and a second locking nut which are used for locking a boring shaft in the bearing inner sleeve. The boring shaft supporting device disclosed by the utility model can effectively ensure the coaxiality of the boring shaft processing, simultaneously reduces the abrasion of the boring shaft, reduces the processing cost and improves the working efficiency.
Description
Technical Field
The utility model relates to a boring processing device, in particular to a boring shaft supporting device.
Background
Boring is the further processing of forged or drilled holes and is a common process for ship production and manufacture. In the boring process, in order to prevent the boring shaft from vibrating or deflecting, a support device is usually added at the periphery of the boring shaft to support and guide the boring shaft. The existing boring shaft supporting device is generally a copper sleeve, the copper sleeve is fixed on a machine frame or directly fixed on a machine tool, a boring shaft penetrates through the copper sleeve, and the boring shaft and the copper sleeve are in clearance fit. However, in the application process of the supporting device, when the boring shaft rotates, friction is often generated between the boring shaft and the copper sleeve, so that the copper sleeve and the boring shaft are extremely easy to wear, the copper sleeve is replaced again, the supporting device is not only troublesome, but also high in cost, and the supporting device is not beneficial to continuous production and processing of enterprises.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a boring shaft support device, which can effectively ensure the coaxiality of boring shaft processing, reduce the wear of the boring shaft, reduce the processing cost and improve the working efficiency.
The technical scheme of the utility model is as follows: the utility model provides a bore hole axle strutting arrangement, includes bearing inner race, bearing and bearing frame, the bearing housing establish the middle part of bearing inner race, the bearing frame cover establish at the bearing periphery, bearing inner race both ends respectively threaded connection have be used for with the first lock nut and the second lock nut of bore hole axle locking in bearing inner race.
As a further improvement, one side of the bearing inner sleeve is provided with a notch which penetrates through to two ends along the axial direction of the bearing inner sleeve, and the diameters of the outer wall of the bearing inner sleeve are larger than the diameters of the inner walls of the first locking nut and the second locking nut.
Further, a plurality of oil grooves are formed in the inner wall of the bearing inner sleeve, and each oil groove extends to two ends of the bearing inner sleeve along the axial direction of the bearing inner sleeve.
Further, the bearing inner sleeve comprise a first thread section, a bearing installation part and a second thread section which are sequentially connected from left to right, the first thread section is in threaded connection with a first locking nut, the second thread section is in threaded connection with a second locking nut, and the bearing sleeve is sleeved on the periphery of the bearing installation part.
Further, the outer surface of the bearing mounting portion is a tapered surface, correspondingly, the inner wall of the inner ring of the bearing is a tapered hole, and the tapered surface is matched with the tapered hole.
Further, the first threaded section, the bearing mounting portion and the second threaded section are of an integrated structure.
Furthermore, the outer walls of the first locking nut and the second locking nut are provided with mounting grooves for mounting the stop piece.
Furthermore, the outer wall of the second locking nut is also provided with a plurality of sinking grooves.
Furthermore, one end of the inner wall of the bearing seat is provided with a limiting shoulder, the other end of the inner wall of the bearing seat is in threaded connection with a plurality of limiting screws, the plurality of limiting screws are circumferentially arranged on the outer wall of the bearing seat, and the limiting screws and the limiting shoulder are respectively contacted with two sides of the outer ring of the bearing.
Furthermore, the outer wall of the bearing seat is provided with an annular groove.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
1. according to the boring shaft supporting device, the boring shaft is locked in the bearing inner sleeve by the first locking nut and the second locking nut, the bearing inner sleeve is installed in the bearing seat through the bearing, and the bearing seat is fixed, so that the boring shaft can be supported.
2. According to the boring shaft supporting device, the bearing inner sleeve is provided with the notch, and the effect of the first locking nut and the second locking nut is matched, when the boring shaft is locked, the boring shaft penetrates through the bearing inner sleeve, the outer wall of the bearing inner sleeve is extruded to deform and tightly press the boring shaft, the first locking nut and the second locking nut can be respectively screwed in when the diameter is reduced, and the boring shaft is clamped; through loosening two lock nuts, the bearing inner sleeve struts, can extract the bore hole axle, and the dismouting is very convenient, also can be through changing the lock nut of different specifications to realize the bore hole axle clamp of different diameters, application scope is wide.
3. According to the boring shaft support device, the oil groove is formed in the bearing inner sleeve, and when the boring shaft support device is in practical use, cooling oil can be injected into the bearing inner sleeve through the oil groove, so that the cooling effect on the bearing inner ring is realized, and the service life of the bearing is effectively ensured in the process of high-speed running of the boring shaft.
4. The boring shaft supporting device adopts the installation mode that the conical surface is matched with the conical hole between the bearing inner sleeve and the bearing inner ring, when the boring shaft supporting device is installed, the largest end of the bearing installation part of the bearing inner sleeve is installed towards one side of a workpiece, when the workpiece is fed and cut in the direction of a cutter in the boring process, the bearing inner ring can provide the bearing inner sleeve with a reverse thrust in the direction of the workpiece, compared with the installation mode that the bearing inner ring is matched with the cylindrical surface of the bearing inner sleeve, the connection reliability is higher, and the problem that the bearing inner sleeve and the bearing slide relatively and are loosened is effectively prevented.
5. According to the boring shaft supporting device, the bearing is limited in the bearing seat through the limiting shoulder and locked in the bearing seat through the limiting screw, the bearing is prevented from moving axially along the bearing seat, the stability of the boring shaft support is improved, and meanwhile, the bearing is convenient to disassemble and assemble and maintenance is more convenient due to the matched installation mode of the limiting screw and the limiting shoulder.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic side view of the inner race of the bearing of the present invention;
FIG. 3 is a schematic sectional view of a bearing inner race of the present invention;
FIG. 4 is a schematic sectional front view of a bearing seat according to the present invention;
FIG. 5 is a side view of the first locking nut of the present invention;
fig. 6 is a side view schematically illustrating the second lock nut according to the present invention.
Wherein: 1-bearing inner sleeve, 2-bearing, 3-bearing seat, 4-first locking nut, 5-second locking nut, 6-notch, 7-oil groove, 8-mounting groove, 9-sink groove, 10-limit screw, 11-first thread section, 12-bearing mounting section, 13-second thread section, 14-conical surface, 21-conical hole, 31-limit shoulder and 32-limit screw.
Detailed Description
The utility model will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1-6, the boring shaft support device of the present invention includes a bearing inner sleeve 1, a bearing 2 and a bearing seat 3, wherein the bearing 2 is a ball bearing, the bearing 2 is sleeved on the middle portion of the bearing inner sleeve 1, the bearing seat 3 is sleeved on the periphery of the bearing 2, and two ends of the bearing inner sleeve 1 are respectively in threaded connection with a first locking nut 4 and a second locking nut 5 for locking the boring shaft in the bearing inner sleeve 1.
According to the boring shaft supporting device, the boring shaft is locked in the bearing inner sleeve 1 through the first locking nut 4 and the second locking nut 5, the bearing inner sleeve 1 is installed in the bearing seat 3 through the bearing 2, the bearing seat 3 is fixed, and therefore the boring shaft can be supported, when the boring shaft rotates, relative rotation does not exist between the boring shaft and the bearing inner sleeve 1, and between the bearing inner sleeve 1 and an inner ring of the bearing 2, relative abrasion does not exist, coaxiality of machining of the boring shaft can be effectively guaranteed, abrasion of the boring shaft is reduced, machining cost is reduced, and working efficiency is improved.
Preferably, a notch 6 penetrating to two ends along the axial direction is formed in one side of the bearing inner sleeve 1, wherein the diameter of the outer wall of the bearing inner sleeve 1 is larger than the diameter of the inner walls of the first locking nut 4 and the second locking nut 5.
In the boring shaft supporting device of the embodiment, the bearing inner sleeve 1 is provided with the notch 6 and is matched with the action of the first locking nut 4 and the second locking nut 5, when the boring shaft is locked, the boring shaft penetrates through the bearing inner sleeve 1, the outer wall of the bearing inner sleeve 1 is extruded to deform and press the boring shaft, and the boring shaft can be screwed in the first locking nut 4 and the second locking nut 5 respectively after the diameter is reduced, so that the boring shaft is clamped; through loosening two lock nuts, bearing inner race 1 struts, can extract the bore hole axle, and the dismouting is very convenient, also can be through the lock nut of changing different specifications to realize the bore hole axle clamp of different diameters, application scope is wide.
Preferably, a plurality of oil grooves 7 are formed in the inner wall of the bearing inner sleeve 1, and each oil groove 7 extends to two ends of the bearing inner sleeve 1 along the axial direction of the bearing inner sleeve.
In the boring shaft supporting device in the embodiment, the oil groove 7 is formed in the bearing inner sleeve 1, and cooling oil can be injected into the bearing inner sleeve 1 through the oil groove 7 in practical use, so that the cooling effect on the inner ring of the bearing 2 is realized, and the service life of the bearing is effectively ensured in the process of high-speed running of the boring shaft.
Preferably, the bearing inner sleeve 1 comprises a first thread section 11, a bearing mounting part 12 and a second thread section 13 which are sequentially connected from left to right, wherein the first thread section 11 is in threaded connection with the first locking nut 4, the second thread section 13 is in threaded connection with the second locking nut 5, and the bearing 2 is sleeved on the periphery of the bearing mounting part 12. The outer surface of the bearing mounting part 12 is a tapered surface 14, correspondingly, the inner wall of the inner ring of the bearing 2 is a tapered hole 21, and the tapered surface 14 is matched with the tapered hole 21.
In the boring shaft supporting device of the embodiment, the mounting mode that the tapered surface 14 is matched with the tapered hole 21 is adopted between the bearing inner sleeve 1 and the bearing 2 inner ring, when the device is mounted, the largest end of the bearing mounting part 12 of the bearing inner sleeve 1 is mounted towards one side of a workpiece, namely the workpiece is positioned at the right side in the figure 1, in the boring process, when the workpiece is fed and cut towards the direction of a cutter, the bearing 2 inner ring can provide a reverse thrust towards the direction of the workpiece for the bearing inner sleeve 1, compared with the mounting mode that the bearing 2 inner ring is matched with the cylindrical surface of the bearing inner sleeve 1, the connection reliability is higher, and the problem that the bearing inner sleeve 1 and the bearing 2 slide relatively and are loosened is effectively prevented.
Preferably, the inner wall of the bearing inner sleeve 1 corresponding to the bearing mounting portion 12 is provided with two spiral oil ducts which are spirally arranged along two ends of the inner wall, the two spiral oil ducts are arranged in a crossed manner, the spiral oil ducts are communicated with the oil grooves, the flow area of cooling oil at the position of the bearing mounting portion 12 is increased, and the cooling effect is further improved.
Preferably, the first thread section 11, the bearing mounting part 12 and the second thread section 13 are of an integrated structure, so that the strength of the bearing inner sleeve 1 is convenient to manufacture and improve, and meanwhile, the elasticity of the bearing inner sleeve 1 is ensured.
Preferably, the outer walls of the first locking nut 4 and the second locking nut 5 are provided with mounting grooves 8 for mounting the stop pieces, when the boring shaft is clamped tightly, the plum blossom-shaped stop pieces are clamped in the mounting grooves 8, and then the locking nuts are screwed, so that the problem of preventing the locking nuts from loosening is solved.
Preferably, a plurality of heavy grooves 9 are further formed in the outer wall of the second locking nut 5, the heavy grooves 9 and the mounting groove 8 are arranged in a staggered mode, when the second locking nut 5 is screwed, an inserting rod can be used for being inserted into the heavy grooves 9, the second locking nut 5 is rotated, and the second locking nut 5 is conveniently screwed.
Preferably, one end of the inner wall of the bearing seat 3 is provided with a limiting shoulder 31, the other end of the inner wall of the bearing seat is in threaded connection with a plurality of limiting screws 10, the plurality of limiting screws 10 are circumferentially arranged on the outer wall of the bearing seat 3, and the limiting screws 10 and the limiting shoulder 31 are respectively contacted with two sides of the outer ring of the bearing 2.
The bore hole shaft supporting device of this embodiment, its bearing 2 is spacing in bearing frame 3 through spacing circular bead 31, and locks in bearing frame 3 through stop screw 10, prevents bearing 2 along 3 axial displacement of bearing frame, improves the stability that the bore hole shaft supported, and stop screw 10 makes things convenient for the dismouting bearing with spacing circular bead 31's cooperation mounting means simultaneously, and it is more convenient to maintain.
Preferably, an annular groove 32 is formed on the outer wall of the bearing seat 3 to facilitate the fixing of the bearing seat 3.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the structure of the utility model, which will not affect the effect of the utility model and the practicability of the patent.
Claims (10)
1. The utility model provides a bore hole axle strutting arrangement, its characterized in that includes bearing endotheca (1), bearing (2) and bearing frame (3), bearing (2) cover establish the middle part at bearing endotheca (1), bearing frame (3) cover establish at bearing (2) periphery, bearing endotheca (1) both ends respectively threaded connection have be used for locking bore hole axle first lock nut (4) and second lock nut (5) in bearing endotheca (1).
2. A boring shaft supporting device according to claim 1, wherein one side of the bearing inner sleeve (1) is provided with a notch (6) penetrating to two ends along the axial direction of the bearing inner sleeve, and the diameters of the outer wall of the bearing inner sleeve (1) are larger than the diameters of the inner walls of the first locking nut (4) and the second locking nut (5).
3. A boring shaft supporting device according to claim 1, wherein the inner wall of the bearing inner sleeve (1) is provided with a plurality of oil grooves (7), and each oil groove (7) extends to two ends of the bearing inner sleeve (1) along the axial direction thereof.
4. A boring shaft support device according to claim 1, 2 or 3, wherein the bearing inner sleeve (1) comprises a first thread section (11), a bearing mounting section (12) and a second thread section (13) which are sequentially connected from left to right, the first thread section (11) is in threaded connection with the first lock nut (4), the second thread section (13) is in threaded connection with the second lock nut (5), and the bearing (2) is sleeved on the periphery of the bearing mounting section (12).
5. A boring shaft support arrangement according to claim 4, wherein the bearing mounting portion (12) has an outer surface which is a tapered surface (14), and correspondingly, the inner race of the bearing (2) has an inner wall which is a tapered bore (21), the tapered surface (14) being adapted to the tapered bore (21).
6. A boring shaft support apparatus according to claim 4, wherein the first threaded section (11), the bearing mounting portion (12) and the second threaded section (13) are of one-piece construction.
7. A boring shaft support apparatus according to claim 1, wherein the outer walls of the first lock nut (4) and the second lock nut (5) are provided with mounting grooves (8) for mounting a stop piece.
8. A boring shaft support apparatus according to claim 1, wherein the outer wall of the second lock nut (5) is further provided with a plurality of recesses (9).
9. A boring shaft support device according to claim 1, wherein one end of the inner wall of the bearing seat (3) is provided with a limiting shoulder (31), the other end is in threaded connection with a plurality of limiting screws (10), the plurality of limiting screws (10) are circumferentially arranged on the outer wall of the bearing seat (3), and the limiting screws (10) and the limiting shoulder (31) are respectively contacted with two sides of the outer ring of the bearing (2).
10. A boring shaft support apparatus according to claim 1, wherein the outer wall of the bearing housing (3) is provided with an annular groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606714.9U CN215980502U (en) | 2021-07-15 | 2021-07-15 | Boring shaft supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606714.9U CN215980502U (en) | 2021-07-15 | 2021-07-15 | Boring shaft supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980502U true CN215980502U (en) | 2022-03-08 |
Family
ID=80516772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121606714.9U Active CN215980502U (en) | 2021-07-15 | 2021-07-15 | Boring shaft supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980502U (en) |
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2021
- 2021-07-15 CN CN202121606714.9U patent/CN215980502U/en active Active
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