CN111120524A - Efficient assembling device for inner ring split bearing - Google Patents
Efficient assembling device for inner ring split bearing Download PDFInfo
- Publication number
- CN111120524A CN111120524A CN202010049574.3A CN202010049574A CN111120524A CN 111120524 A CN111120524 A CN 111120524A CN 202010049574 A CN202010049574 A CN 202010049574A CN 111120524 A CN111120524 A CN 111120524A
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- Prior art keywords
- bearing
- inner ring
- assembly
- locking cover
- face
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Classifications
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- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
-
- 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
- F16C35/063—Fixing them on the shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The efficient assembling device for the inner ring split bearing comprises a locking cover and a sleeve, wherein the sleeve is of a hollow columnar structure, and a hollow columnar boss is processed at one end of the sleeve; the locking cover is of an annular groove-shaped structure, a through hole is processed in the center of the end face, and an annular boss is processed at one end of the through hole, which is positioned at the inner side of the groove-shaped structure; during assembly, the locking cover is used for fixing the assembly to be assembled, the end face of the hollow cylindrical boss of the sleeve pushes the end face of the inner ring of the bearing to move along the shaft, when the end face reaches a preassembling position, the locking cover and the assembly to be assembled are removed from being fixed, and finally the assembly to be assembled and the inner ring of the bearing preassembled on the shaft are pushed to form a complete bearing. According to the invention, manual operation is replaced by tool operation, the problem of uneven stress of the inner ring during manual assembly of the inner ring split bearing is thoroughly solved, the tool guarantees the coaxiality requirement of the inner ring and the outer ring of the bearing, the dependence on the technical quality of workers is eliminated, and the assembly efficiency and the assembly quality are improved.
Description
Technical Field
The invention relates to an efficient assembling device for an inner ring split bearing, and belongs to the field of assembly.
Background
The inner ring split bearing of a certain product is composed of a bearing inner ring 1, balls, a bearing outer ring, a bearing retainer and a bearing inner ring 2, and is shown in figure 1. Wherein, the bearing inner ring is matched with the shaft, the bearing outer ring is matched with the bearing seat, and the coaxiality requirement of the bearing inner ring and the bearing outer ring is
The technical requirement is high. For a long time, the assembly of the inner ring split bearing is completed only by the manual operation of an assembly worker, the assembly success rate highly depends on the operation level of the worker, and the one-time assembly power is very low. There are mainly the following problems:
1) the force applied by the inner ring of the bearing is slightly uneven, so that the bearing is scattered and the ball is scattered. The bearing needs to be replaced and reassembled as required, and the assembly efficiency and the assembly quality are severely limited.
2) The position of the inner ring and the outer ring of the bearing needs to be adjusted for the second time after the bearing is installed so as to ensure
The coaxiality is required, and time and labor are wasted.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defect of the prior art is overcome, the high-efficiency assembling device for the inner ring split bearing is provided, manual operation is replaced by tool operation, the problem that the stress of the inner ring is uneven when the inner ring split bearing is manually assembled is thoroughly solved, the coaxiality requirement of the inner ring and the outer ring of the bearing is guaranteed by the tool, dependence on technical quality of workers is eliminated, and assembling efficiency and assembling quality are improved.
The technical solution of the invention is as follows:
the efficient assembling device for the inner ring split bearing comprises a locking cover and a sleeve;
the sleeve is of a hollow columnar structure, and a hollow columnar boss is processed at one end of the sleeve;
the locking cover is of an annular groove-shaped structure, a through hole is processed in the center of the end face, and four observation holes are uniformly distributed in the end face around the through hole; an annular boss is processed at one end of the through hole, which is positioned at the inner side of the groove-shaped structure; a locking screw hole is formed in the side wall of the locking cover;
when the bearing is assembled, the locking cover is used for fixing the assembly to be assembled, the assembly to be assembled is of an integral structure consisting of a bearing inner ring, a ball, a bearing outer ring and a bearing retainer, the end face of the hollow cylindrical boss of the sleeve pushes the end face of the bearing inner ring to move along the shaft, when the end face of the hollow cylindrical boss of the sleeve reaches a preassembling position, the locking cover and the assembly to be assembled are released from being fixed, and finally the assembly to be assembled and the bearing inner ring preassembled on the shaft are pushed to form the complete.
The groove depth of the annular groove-shaped structure of the locking cover is the same as the height of the bearing outer ring.
The inner diameter of the locking cover is the same as the outer diameter of the bearing outer ring.
The coaxiality of the inner diameter of the locking cover and the through hole of the locking cover is phi 0.02 mm.
The outer diameter of the end face of the annular boss on the locking cover is the same as that of the bearing inner ring, and the difference value between the outer diameter and the inner diameter of the end face of the annular boss is half of the thickness of the single side of the bearing inner ring.
The difference value of the outer diameter and the inner diameter of the end face of the hollow cylindrical boss of the sleeve is half of the thickness of the single side of the inner ring of the bearing.
The height of the hollow cylindrical boss of the sleeve is greater than that of the bearing bush.
The assembly process is as follows:
(1) the bearing inner ring is pre-installed on the shaft;
(2) manually installing the balls in the inner side groove of the bearing outer ring, then placing the bearing retainer on the inner side of the bearing outer ring for fixing the relative positions of the balls, and sleeving the bearing inner ring on the inner side of the bearing retainer to form a to-be-assembled body;
(3) placing the assembly to be assembled in the locking cover, and locking and fixing the locking cover and the assembly to be assembled through a locking screw to ensure that the end face of the bearing inner ring is contacted with the end face of the annular boss on the locking cover;
(4) the sleeve boss penetrates into the through hole from the outer side of the end face of the locking cover, the end face of the sleeve boss abuts against the end face of the bearing inner ring arranged in the locking cover, the locking cover is pushed to be pushed to advance along the axial direction of the shaft uniformly, and the shaft penetrates through the sleeve;
(5) when the outer side of the end face of the locking cover reaches the end face of a bearing bushing which is installed in advance, a locking screw between the locking cover and the assembly to be assembled is loosened, the sleeve is continuously pressed to push the assembly to be assembled to be separated from the locking cover, and after the assembly position is reached, the assembly to be assembled and the bearing inner ring form a complete bearing, and the assembly is finished;
(6) and detaching the sleeve and the locking cover.
Compared with the prior art, the invention has the following beneficial effects:
the locking cover and the sleeve are designed, the assembly to be assembled is fixed through the locking cover, the sleeve pushes the assembly to be assembled and the bearing inner ring pre-assembled on the shaft to form the complete bearing, manual operation is replaced by tool operation, the problem that the inner ring is stressed unevenly when the inner ring split bearing is assembled manually is solved thoroughly, the tool can guarantee the coaxiality requirement of the inner ring and the outer ring of the bearing, the dependence on the technical quality of workers is eliminated, and the assembly efficiency and the assembly quality are improved.
Drawings
FIG. 1 is a schematic view of a sleeve structure;
FIG. 2 is a schematic view of a locking boot, wherein (a) is a schematic end view and (b) is a cross-sectional view;
fig. 3 is a view showing the inner ring split bearing structure.
Detailed Description
Fig. 3 shows a structure of the inner ring split bearing.
The invention provides an efficient assembling device of an inner ring split bearing aiming at the inner ring split bearing, which comprises a locking cover 3 and a sleeve 4.
As shown in FIG. 1, the sleeve 4 is a hollow cylindrical structure, and a hollow cylindrical boss is formed at one end of the sleeve.
As shown in fig. 2, the locking cover 3 is of an annular groove-shaped structure, a through hole is processed at the center of the end face, and four observation holes are uniformly distributed on the end face around the through hole; an annular boss is processed at one end of the through hole, which is positioned at the inner side of the groove-shaped structure; and a locking screw hole is arranged on the side wall of the locking cover 3. Fig. 2 (a) is a schematic end view and (b) is a cross-sectional view.
The depth of the annular groove-shaped structure of the locking cover 3 is the same as the height of the bearing outer ring. The inner diameter of the locking cover 3 is the same as the outer diameter of the bearing outer ring. The coaxiality of the inner diameter of the locking cover 3 and the through hole of the locking cover 3 is phi 0.02mm, so that the inner ring and the outer ring of the bearing are ensured
And (5) coaxiality requirement. The outer diameter of the end face of the annular boss on the locking cover 3 is the same as that of the bearing inner ring 1, and the difference value between the outer diameter and the inner diameter of the end face of the annular boss is half of the thickness of the single side of the bearing inner ring 1. The difference value between the outer diameter and the inner diameter of the end face of the hollow columnar boss of the sleeve 4 is half of the thickness of the single side of the bearing inner ring 1. The height of the hollow column-shaped boss of the sleeve 4 is larger than that of the bearing bush.
The outer diameter of the hollow cylindrical boss of the sleeve 4 is in clearance fit with the inner diameter of the through hole of the locking cover 3.
The height of the annular boss on the locking cover 3 is ensured to be capable of contacting with the end face of the bearing inner ring 1. The 4 observation holes are used for observing the assembly process in real time, the middle part of each observation hole is of an arc-shaped structure, the two sides of each observation hole are of semicircular structures, and the included angle between the circle centers of the semicircles on the two sides and the central connecting line of the end face of the locking cover is 46 degrees. The width of each observation hole along the radial direction of the end face of the locking cover is 6-8 mm.
The assembly process of the assembly device applying the invention is as follows:
(1) the bearing inner ring 2 is pre-installed on the shaft;
(2) manually installing the balls in the inner side groove of the bearing outer ring, then placing the bearing retainer on the inner side of the bearing outer ring for fixing the relative positions of the balls, and sleeving the bearing inner ring 1 on the inner side of the bearing retainer to form a to-be-assembled assembly;
(3) placing the assembly to be assembled in the locking cover 3, and locking and fixing the locking cover 3 and the assembly to be assembled through an M5 locking screw to ensure that the end face of the bearing inner ring 1 is contacted with the end face of the annular boss on the locking cover 3;
(4) the sleeve boss penetrates into the through hole from the outer side of the end face of the locking cover 3, and the end face of the annular boss on the locking cover 3 and the end face of the hollow columnar boss of the sleeve 4 jointly prop against the end face of the bearing inner ring 1. The end face of the boss of the sleeve pushes the locking cover 3 to advance along the axial direction of the shaft, and the shaft passes through the sleeve;
(5) when the outer side of the end face of the locking cover reaches the end face of a bearing bushing which is installed in advance, an M5 locking screw between the locking cover 3 and the assembly to be assembled is loosened, the sleeve is continuously pressed to push the assembly to be assembled to be separated from the locking cover, and after the assembly position is reached, the assembly to be assembled and the bearing inner ring 2 form a complete bearing, and the assembly is finished;
(6) and detaching the sleeve and the locking cover.
The assembly data of nearly 20 products is counted to obtain: the number of times of bearing reinstallation is reduced to 1 from 5 times in the past on average, and a trainee can complete the operation, and the time is saved by 2 hours each time of assembly. The bearing assembly failure and bearing ball scattering phenomenon are not found, the utilization rate of the bearing is improved, the assembly quality is improved, and the cost is saved. The bearing can ensure the inner and outer rings of the bearing through one-time assembly
And (5) coaxiality requirement.
The invention has not been described in detail in part of the common general knowledge of those skilled in the art.
Claims (8)
1. High-efficient assembly quality of inner ring split bearing, its characterized in that: comprises a locking cover (3) and a sleeve (4);
the sleeve (4) is of a hollow columnar structure, and a hollow columnar boss is processed at one end of the sleeve;
the locking cover (3) is of an annular groove-shaped structure, a through hole is processed in the center of the end face, and four observation holes are uniformly distributed on the end face around the through hole; an annular boss is processed at one end of the through hole, which is positioned at the inner side of the groove-shaped structure; a locking screw hole is formed in the side wall of the locking cover (3);
during assembly, the locking cover (3) is used for fixing the assembly to be assembled, the assembly to be assembled is an integral structure formed by the bearing inner ring (1), the balls, the bearing outer ring and the bearing retainer, the end face of the hollow cylindrical boss of the sleeve (4) pushes the end face of the bearing inner ring (1) to move along the shaft, when the end face reaches a preassembling position, the locking cover and the assembly to be assembled are removed from being fixed, and finally the assembly to be assembled and the bearing inner ring (2) preassembled on the shaft are pushed to form a complete bearing.
2. The inner ring split bearing high efficiency assembly device according to claim 1, wherein: the depth of the annular groove-shaped structure of the locking cover (3) is the same as the height of the bearing outer ring.
3. The inner ring split bearing high efficiency assembly device according to claim 1, wherein: the inner diameter of the locking cover (3) is the same as the outer diameter of the bearing outer ring.
4. The inner ring split bearing high efficiency assembly device according to claim 1, wherein: the coaxiality of the inner diameter of the locking cover (3) and the through hole of the locking cover (3) is phi 0.02 mm.
5. The inner ring split bearing high efficiency assembly device according to claim 1, wherein: the outer diameter of the end face of the annular boss on the locking cover (3) is the same as that of the bearing inner ring (1), and the difference value between the outer diameter and the inner diameter of the end face of the annular boss is half of the unilateral thickness of the bearing inner ring (1).
6. The inner ring split bearing high efficiency assembly device according to claim 5, wherein: the difference value between the outer diameter and the inner diameter of the end face of the hollow cylindrical boss of the sleeve (4) is half of the unilateral thickness of the bearing inner ring (1).
7. The inner ring split bearing high efficiency assembly device according to claim 5, wherein: the height of the hollow cylindrical boss of the sleeve (4) is greater than that of the bearing bush.
8. The inner ring split bearing high efficiency assembly device according to claim 1, wherein: the assembly process is as follows:
(1) the bearing inner ring (2) is pre-installed on the shaft;
(2) manually installing the balls in the inner side groove of the bearing outer ring, then placing the bearing retainer on the inner side of the bearing outer ring for fixing the relative positions of the balls, and sleeving the bearing inner ring (1) on the inner side of the bearing retainer to form a to-be-assembled assembly;
(3) placing the assembly to be assembled in the locking cover (3), and locking and fixing the locking cover (3) and the assembly to be assembled through a locking screw to ensure that the end face of the bearing inner ring (1) is contacted with the end face of the annular boss on the locking cover (3);
(4) a sleeve boss penetrates into the through hole from the outer side of the end face of the locking cover (3), the end face of the sleeve boss is tightly propped against the end face of the bearing inner ring (1) arranged in the locking cover (3), the locking cover (3) is uniformly pushed to advance along the axial direction of a shaft, and the shaft penetrates through the sleeve;
(5) when the outer side of the end face of the locking cover reaches the end face of a bearing bushing which is installed in advance, a locking screw between the locking cover (3) and the assembly to be assembled is loosened, the sleeve is continuously pressed to push the assembly to be assembled to be separated from the locking cover, and after the assembly position is reached, the assembly to be assembled and the bearing inner ring (2) form a complete bearing, and the assembly is finished;
(6) and detaching the sleeve and the locking cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010049574.3A CN111120524B (en) | 2020-01-16 | 2020-01-16 | Efficient assembling device for inner ring split bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010049574.3A CN111120524B (en) | 2020-01-16 | 2020-01-16 | Efficient assembling device for inner ring split bearing |
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|---|---|
| CN111120524A true CN111120524A (en) | 2020-05-08 |
| CN111120524B CN111120524B (en) | 2021-08-10 |
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| CN202010049574.3A Active CN111120524B (en) | 2020-01-16 | 2020-01-16 | Efficient assembling device for inner ring split bearing |
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| CN110328493A (en) * | 2019-06-28 | 2019-10-15 | 中国航发南方工业有限公司 | The method for controlling the axial gap between the blade tip and outer cover of centrifugal impeller |
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| CN111120524B (en) | 2021-08-10 |
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