CN113958618B - Device for rapidly disassembling double-row roller bearing - Google Patents
Device for rapidly disassembling double-row roller bearing Download PDFInfo
- Publication number
- CN113958618B CN113958618B CN202111332465.3A CN202111332465A CN113958618B CN 113958618 B CN113958618 B CN 113958618B CN 202111332465 A CN202111332465 A CN 202111332465A CN 113958618 B CN113958618 B CN 113958618B
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- double
- disassembling
- cylindrical pin
- disassembling device
- roller bearing
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- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a device for disassembling a double-row roller bearing, which comprises a disassembling device upper body and a disassembling device lower body, wherein the disassembling device upper body and the disassembling device lower body are respectively in a semicircular shape and are connected to form a circular shape, a threaded hole a is axially formed in the cross section of the circular ring, a fastening screw a is screwed in the threaded hole a, a through hole b is axially formed in the other cross section of the circular ring, a double-cone cylindrical pin is inserted in the through hole b, a counter bore and a threaded hole c are radially formed in the surface of the circular ring, the upper part of the counter bore is a threaded end, a screw d is screwed at the threaded end, a conical cylindrical pin is inserted in the lower part of the counter bore, a fastening screw c is screwed in the threaded hole c, a groove a is axially formed in the cylindrical surface of the conical cylindrical pin, the fastening screw a is arranged in the groove a, and the double-cone cylindrical pin is axially provided with a groove c; the maintenance time can be shortened, the machine tool stopping time is reduced, and the economic loss caused by stopping is reduced.
Description
Technical Field
The invention belongs to the technical field of machining and equipment manufacturing, and particularly relates to a device for rapidly disassembling a double-row roller bearing.
Background
Because the two rows of rollers in the double-row roller bearing are arranged in a crossed manner, the fluctuation frequency can be doubled compared with that of a single-row bearing during rotation, and the amplitude is reduced by 70%; meanwhile, the outer ring and the inner ring of the double-row cylindrical roller bearing can be separated, the inner hole is a taper hole, the inner hole is matched with a taper journal of a main shaft, and the inner ring can be expanded by axially moving the inner ring so as to reduce bearing play and even pre-tightening the bearing, so that the double-row cylindrical roller bearing is suitable for bearing larger radial load and impact load and allows higher rotating speed. At present, due to the special advantages of the double-row bearing, the double-row bearing is widely applied to main shafts of key parts of various large numerical control machine tool equipment and main shafts of accessory angle milling heads of the main shafts, high rotation precision of the main shafts is guaranteed, and high machining precision is obtained.
Although the double-row roller bearing is applied to various large-scale numerical control machine tool spindles with the advantages, and brings more benefits, when the rotation precision and the machining precision of the numerical control machine tool spindle and the accessory angle milling head spindle thereof are out of tolerance, the double-row roller bearing still cannot be maintained and adjusted to eliminate the faults, and the double-row roller bearing needs to be replaced; because the double-row roller bearing is difficult to disassemble at the main shaft part and the structural characteristics thereof, and the bearing clearance is required to be adjusted when the bearing is replaced, the double-row roller bearing is required to be repeatedly assembled and disassembled, and thus the double-row roller bearing is easy to be disassembled. Not only is maintenance time and labor wasted, but also maintenance cost is increased more easily, and production progress is affected.
Disclosure of Invention
The invention aims to provide a device for rapidly disassembling a double-row roller bearing, which solves the problem that the double-row roller bearing is difficult to disassemble due to the complex structure.
The technical scheme adopted by the invention is that the device for rapidly disassembling the double-row roller bearing comprises a disassembling device upper body and a disassembling device lower body, wherein the disassembling device upper body and the disassembling device lower body are respectively in a semicircular shape, the disassembling device upper body and the disassembling device lower body are connected to form a circular ring shape, threaded holes a are axially formed in the cross sections of the disassembling device upper body and the disassembling device lower body, a set screw a is internally rotated in the threaded holes a, a through hole b is axially formed in the other cross section of the disassembling device upper body and the disassembling device lower body, a biconical cylindrical pin is inserted in the through hole b, a counter bore and a threaded hole c are radially formed in the outer surfaces of the disassembling device upper body and the disassembling device lower body, the upper part of the counter bore is a threaded end, a bolt is screwed at the threaded end of the counter bore, a conical surface cylindrical pin is inserted in the lower part of the counter bore, the bolt is abutted to the conical surface cylindrical pin, the threaded hole c is screwed in the threaded hole c, a groove a is axially formed in the cylindrical surface, the set screw a is axially formed in the groove a, the cylindrical surface is axially formed in the cylindrical surface, the threaded hole b is axially formed in the cylindrical surface, the threaded hole c is axially formed in the threaded hole c, the threaded cylindrical pin is vertically abutted to the threaded hole b, and vertically abutted to the threaded hole b.
The invention is also characterized in that:
the upper body of the dismounting device is connected with the lower body of the dismounting device through a fastening bolt and a nut.
The joint of the dismounting device upper body and the dismounting device lower body is provided with a flat washer and a spring washer between the nut and the dismounting device upper body.
The conical surface angle of the conical surface cylindrical pin is the same as that of the double-conical surface cylindrical pin.
The bolts are hexagonal bolts.
The beneficial effects of the invention are as follows:
According to the device for rapidly disassembling the double-row roller bearing, when the double-row roller bearing on the main shaft of the large numerical control machine tool and the main shaft of the accessory angle milling head of the large numerical control machine tool loses the rotation precision, the double-row roller bearing can be rapidly and conveniently disassembled when the double-row roller bearing needs to be disassembled, replaced and installed and adjusted and is required to be repeatedly disassembled; the maintenance time can be shortened, the machine tool stopping time is reduced, and the economic loss caused by stopping is reduced.
Drawings
FIG. 1 is a front view of the apparatus for rapidly disassembling a double row roller bearing of the present invention;
FIG. 2 is a left side view of the apparatus for rapidly disassembling a double row roller bearing of the present invention;
FIG. 3 is a diagram of the actual removal of the device for rapidly removing a double row roller bearing according to the present invention.
In the figure, the device upper body 2, flat washers a,3, spring washers a,4, nuts a,5, fastening bolts a,6, bolts a,7, tapered cylindrical pins a,11, bolts b,12, tapered cylindrical pins b,16, bolts c,17, tapered cylindrical pins c,18, bolts a,19, double tapered cylindrical pins a,20, set screws b,21, bolts d,22, tapered cylindrical pins d,26, bolts e,27, tapered cylindrical pins e,31, fastening bolts b,32, nuts b,33, spring washers b,34, flat washers b,35, bolts f,36, tapered cylindrical pins f,40, bolts g,41, tapered cylindrical pins g,45, bolts h,46, tapered cylindrical pins h,47, set screws c,48, double tapered cylindrical pins b,49, set screws d,50, bolts i,51, tapered cylindrical pins i,55, bolts j,56, cylindrical pins j,60, dismounting the device lower body 61, 62, outer race 63.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the dismounting device upper body 1 and the dismounting device lower body 60 are respectively in a semicircular shape, two ends of the dismounting device upper body 1 and the dismounting device lower body 60 are respectively connected through a fastening bolt a5, a nut a4, a fastening bolt b31 and a nut b32 to form a circular shape, a flat gasket a2 and a spring gasket a3 are arranged between the nut a4 and the dismounting device upper body 1, a flat gasket b34 and a spring gasket b33 are arranged between the nut b32 and the dismounting device upper body 1, counter bores and threaded holes c are radially formed on the outer surfaces of the dismounting device upper body 1 and the dismounting device lower body 60, the upper parts of the counter bores are threaded ends, the threaded ends are screwed with a bolt a6, a bolt b11, a bolt c16, a bolt d21, a bolt e26, a bolt f35, a bolt g40, a bolt h45, a bolt i50 and a bolt j55, conical surface cylindrical pin a7, conical surface cylindrical pin b12, conical surface cylindrical pin c17, conical surface cylindrical pin d22, conical surface cylindrical pin e27, conical surface cylindrical pin f36, conical surface cylindrical pin g41, conical surface cylindrical pin h46, conical surface cylindrical pin i51, conical surface cylindrical pin j56 are inserted into the lower portion of the counter bore, bolt a6, bolt b11, bolt c16, bolt d21, bolt e26, bolt f35, bolt g40, bolt h45 and conical surface cylindrical pin a7, conical surface cylindrical pin b12, conical surface cylindrical pin c17, conical surface cylindrical pin d22, conical surface cylindrical pin e27, conical surface cylindrical pin f36, conical surface cylindrical pin g41, conical surface cylindrical pin h46, conical surface cylindrical pin i51 and conical surface cylindrical pin j56 are respectively in butt joint.
As shown in fig. 2, the cross sections of the upper dismounting device body 1 and the lower dismounting device body 60 are provided with threaded holes a along the axial direction, the outer surfaces of the upper dismounting device body 1 and the lower dismounting device body 60 are provided with threaded holes c in the radial direction, the threaded holes a are internally provided with fastening screws a18 and c47, the threaded holes c are internally provided with fastening screws b20 and d49, the other cross sections of the upper dismounting device body 1 and the lower dismounting device body 60 are provided with through holes b along the axial direction, the through holes b are internally provided with double-cone cylindrical pins a19 and a double-cone cylindrical pin b48, the conical cylindrical pins shown in fig. 1 are provided with grooves a along the axial direction on the cylindrical surfaces, the fastening screws a18 and c47 are arranged in the grooves a, the double-cone cylindrical pins are provided with grooves c along the axial direction, the fastening screws b20 and d49 are arranged in the grooves c, the conical pins are vertically abutted with the double-cone cylindrical pins, the threaded holes a are vertically and mutually perpendicular to the counter bores, and the threaded holes c vertically and mutually intersect with the counter bores b.
The working principle of the invention is as follows:
As shown in fig. 3, firstly, the bolts c16 and h45 are loosened, so that the arc surfaces of the double-conical cylindrical pin a19 and the double-conical cylindrical pin b48 are flush with the right end surfaces of the upper dismounting device body 1 and the lower dismounting device body 60; the dismounting device is then mounted on the machine spindle 61 with the right end of the dismounting device abutting against the double row roller bearing. The bolts c16 and h45 are rotated clockwise, and at the moment, the set screw a18 and the set screw c47 limit rotation of the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46, so that the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46 are pushed by the bolts a16 and h45 to move linearly; the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46 apply thrust to the double-conical-surface cylindrical pin a19 and the double-conical-surface cylindrical pin b 48; because the set screw b20 and the set screw d49 limit the double-conical cylindrical pin a19 and the double-conical cylindrical pin b48 to rotate, the double-conical cylindrical pin can only move linearly outwards. The other eight operations are also performed simultaneously in this way.
The specific process of the invention for quick disassembly is as follows:
Firstly, loosening the nuts a4 and b32 to separate the upper dismounting device body 1 from the lower dismounting device body 60, and loosening the bolts a16 and h45 to retract the double-conical cylindrical pin a19 and the double-conical cylindrical pin b48 to be level with the right end surfaces of the upper dismounting device body 1 and the lower dismounting device body 60; the dismounting device is then mounted on the machine tool spindle 61 where the double row roller bearing is to be dismounted, and the quick dismounting device is fastened as a whole with the fastening bolt a5, the fastening bolt b31, the nut a4 and the nut b 32. Finally, the bolt c16 and the bolt h45 are rotated clockwise to push the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46 to move; because the set screw a18 and the set screw c47 limit the rotation of the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46, the linear motion of the conical surface cylindrical pin c17 and the conical surface cylindrical pin h46 push the double-conical surface cylindrical pin a19 and the double-conical surface cylindrical pin b48 to move, and because the set screw b20 and the set screw d49 limit the rotation of the double-conical surface cylindrical pin a19 and the double-conical surface cylindrical pin b48, the double-conical surface cylindrical pin a19 and the double-conical surface cylindrical pin b48 can only move linearly outwards, the thrust is exerted on the inner ring 62 of the double-row roller bearing, and other eight parts simultaneously operate according to the method to rapidly unload the double-row roller bearing.
Through the mode, when the double-row roller bearing of the main shaft of the numerical control machine tool loses rotation precision and needs to be replaced, the dismounting device can quickly and conveniently dismount the double-row roller bearing, shorten maintenance time, reduce machine tool stop-start time and reduce economic loss caused by machine tool stop.
Claims (5)
1. The device for rapidly disassembling the double-row roller bearing is characterized by comprising a disassembling device upper body (1) and a disassembling device lower body (60), wherein the disassembling device upper body (1) and the disassembling device lower body (60) are respectively in a semicircular shape, the disassembling device upper body (1) and the disassembling device lower body (60) are connected to form a circular ring shape, a threaded hole a is formed in the cross section of the disassembling device upper body (1) and the disassembling device lower body (60) along the axial direction, a set screw a is arranged in the threaded hole a in an internal rotation mode, a through hole b is formed in the other cross section of the disassembling device upper body (1) and the disassembling device lower body (60) along the axial direction, a double-cone cylindrical pin is inserted into the through hole b, a counter bore and a threaded hole c are formed in the radial direction on the outer surfaces of the disassembling device upper body (1) and the disassembling device lower body (60), a bolt is arranged at the threaded end of the counter bore, a conical surface cylindrical pin is inserted into the lower portion of the counter bore, a set screw c is arranged in the threaded hole c along the axial direction, a set screw a is arranged on the cylindrical surface along the cylindrical surface a vertical direction, a set screw c is arranged on the cylindrical surface b, a cylindrical surface is arranged on the cylindrical surface b vertical to the cylindrical surface b, and a cylindrical surface is perpendicular to the cylindrical surface b.
2. Device for rapid disassembly of a double row roller bearing according to claim 1, characterized in that the disassembly device upper body (1) and the disassembly device lower body (60) are connected with fastening bolts and nuts.
3. The device for rapidly disassembling a double row roller bearing according to claim 2, wherein a flat washer and a spring washer are arranged between the nut and the upper body (1) of the disassembling device at the joint of the upper body (1) of the disassembling device and the lower body (60) of the disassembling device.
4. The apparatus for rapidly disassembling a double row roller bearing according to claim 1, wherein the taper angle of the tapered cylindrical pin is the same as the taper angle of the double tapered cylindrical pin.
5. The apparatus for rapidly disassembling a double row roller bearing according to claim 1, wherein the bolt is a hexagonal bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332465.3A CN113958618B (en) | 2021-11-11 | 2021-11-11 | Device for rapidly disassembling double-row roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332465.3A CN113958618B (en) | 2021-11-11 | 2021-11-11 | Device for rapidly disassembling double-row roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113958618A CN113958618A (en) | 2022-01-21 |
| CN113958618B true CN113958618B (en) | 2024-04-30 |
Family
ID=79470179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111332465.3A Active CN113958618B (en) | 2021-11-11 | 2021-11-11 | Device for rapidly disassembling double-row roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113958618B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0530546U (en) * | 1991-09-30 | 1993-04-23 | エヌテイエヌ株式会社 | Double row tapered roller bearing unit |
| JP2012026495A (en) * | 2010-07-22 | 2012-02-09 | Toyota Motor Corp | Housing device of drive-shaft bearing |
| KR20130019158A (en) * | 2011-08-16 | 2013-02-26 | 대우조선해양 주식회사 | Mounting structure for bearing |
| CN204985326U (en) * | 2015-08-25 | 2016-01-20 | 中机洛阳轴承科技有限公司 | Cross cylindrical roller bearing of flanged and retaining ring |
| CN106969052A (en) * | 2017-05-18 | 2017-07-21 | 响水县海源紧定衬套制造有限公司 | A kind of quick detachable sleeve |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | Adapter sleeve for a bearing and method for locking an adapter sleeve for a bearing |
-
2021
- 2021-11-11 CN CN202111332465.3A patent/CN113958618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0530546U (en) * | 1991-09-30 | 1993-04-23 | エヌテイエヌ株式会社 | Double row tapered roller bearing unit |
| JP2012026495A (en) * | 2010-07-22 | 2012-02-09 | Toyota Motor Corp | Housing device of drive-shaft bearing |
| KR20130019158A (en) * | 2011-08-16 | 2013-02-26 | 대우조선해양 주식회사 | Mounting structure for bearing |
| CN204985326U (en) * | 2015-08-25 | 2016-01-20 | 中机洛阳轴承科技有限公司 | Cross cylindrical roller bearing of flanged and retaining ring |
| CN106969052A (en) * | 2017-05-18 | 2017-07-21 | 响水县海源紧定衬套制造有限公司 | A kind of quick detachable sleeve |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | Adapter sleeve for a bearing and method for locking an adapter sleeve for a bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113958618A (en) | 2022-01-21 |
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