CN114076677A - Bearing tester shafting structure - Google Patents
Bearing tester shafting structure Download PDFInfo
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- CN114076677A CN114076677A CN202111438103.2A CN202111438103A CN114076677A CN 114076677 A CN114076677 A CN 114076677A CN 202111438103 A CN202111438103 A CN 202111438103A CN 114076677 A CN114076677 A CN 114076677A
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- 238000000034 method Methods 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000012360 testing method Methods 0.000 abstract description 50
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A bearing tester shafting structure relates to the technical field of machinery. The problem that the work efficiency is low and the universality of the existing device is poor due to the fact that the number of tools for mounting and dismounting the existing bearing experiment device is large is solved. The area from a loading bush to a process load body in the device belongs to a standardized process part, a test end belongs to a replaceable test part, the design of the standardized process part is cured and can be directly used, and the part is produced and assembled in batches and is used as a standard component; the replaceable test part is designed and processed independently according to different test bearings, so that the workload of tool design is greatly reduced, and because the right end of the shafting is the test bearing part, the part is only dismounted during mounting and dismounting, so that the workload of dismounting of field operators is greatly reduced, and the universality of the device is improved. The invention is suitable for the field of bearing testers.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a bearing tester shafting structure.
Background
At present, the most classical and most traditional shafting test scheme for double-half inner ring angular contact ball bearings as test bearings is of a symmetrical structure, 4 bearings are arranged on a shafting, two sets of process bearings of the two sets of test bearings are symmetrically distributed on the shafting, the scheme enables different test bearings to be required to be completely newly designed and tested, the tools are required to be completely assembled after being machined, the design workload is large, and the operation amount of installation and disassembly is also large.
According to the traditional bearing test structure, double-half inner ring angular contact ball bearings (test bearings) are positioned at two ends of a shaft system, two sets of cylindrical roller bearings (process bearings) are installed in the middle of the shaft system, radial loads of the test bearings are transmitted to a test shaft through two sets of cylindrical roller bearing bearings positioned in the central position of a main shaft, and then transmitted to an inner ring of the test bearing through the test shaft, so that effective loads are formed. In order to ensure the effectiveness of the axial load application of the test bearing, the left end test bearing is provided with a sliding sleeve, and the sliding sleeve adopts a single key to stop rotating. After the axial load is applied to the sliding sleeve by the axial loader and is transmitted to the test bearing, the left end test bearing pushes the main shaft to apply the axial load to the outer ring of the right side test bearing through the main shaft, and effective application of the axial load is formed;
in conclusion, the existing bearing experiment device has the problems that the work efficiency is low due to the fact that the number of tools for mounting and dismounting is large, and the universality of the existing device is poor.
Disclosure of Invention
The invention provides a bearing tester shafting structure, aiming at solving the problems that the working efficiency is lower and the universality of the existing device is poorer due to the larger amount of tools for mounting and dismounting the existing bearing tester.
The invention relates to a bearing tester shafting structure, which comprises an axial loading mechanism, a loading bush, an upper cover, a sliding sleeve, a process bush, a first bearing, a second bearing, a first spacing ring, a radial loading mechanism, a process load body, a second spacing ring, a tested bush, a tested outer ring sleeve, an oil sealing flange, a coupling, a shaft, a dismounting ring, a shaft gland, a guide disc, a guide rod, an axial loading disc and a base, wherein the axial loading mechanism is arranged on the upper cover;
the upper surface of the base is sequentially and uniformly provided with a loading bush, a process bush and a tested bush from left to right, the middle part of the side surface of the loading bush is provided with a through hole, an axial loading mechanism is embedded in the through hole, the output end of the axial loading mechanism is connected with one end of a guide rod, a guide disc is arranged at the joint of the output end of the axial loading mechanism and one end of the guide rod, the middle part of the side surface of the process bush is provided with a counter bore, a sliding sleeve is embedded in the counter bore, a one-to-one bearing is embedded in the sliding sleeve, one end of a shaft penetrates through the inner ring of the one-to-one bearing and is connected with a shaft gland, a one-to-one spacing ring is arranged between the two one-to-one bearings, the outer side of the shaft gland is provided with an axial loading disc, the outer side of the axial loading disc is in contact with the other end of the guide rod, the middle part of the shaft is provided with a pair of two bearings, and the outer ring of the pair of two bearings is provided with a process load body, a second spacing ring is arranged between the two second bearings, a dismounting ring is arranged between the one-to-one bearing and the one-to-two bearing, a through hole is arranged in the middle of the side surface of the tested bushing, a tested outer ring sleeve is embedded in the through hole, the other end of the shaft penetrates through the tested outer ring sleeve and is connected with one end of the coupling, an oil sealing flange is arranged at the joint of the other end of the shaft and one end of the coupling, the top end of the loading bushing is detachably connected with one end of the lower surface of the upper cover, the top end of the tested bushing is detachably connected with the other end of the lower surface of the upper cover, one end of the upper surface of the upper cover is provided with a radial loading mechanism, and the output end of the radial loading mechanism penetrates through the upper cover and then is contacted with the outer surface of the process load body;
furthermore, the upper surface of the base is detachably connected with the bottoms of the loading bushing, the process bushing and the tested bushing;
furthermore, the first bearing is a double-half inner ring angular contact ball bearing;
furthermore, the second bearing is a cylindrical roller bearing;
further, an oil return hole is processed in the through hole in the middle of the side face of the tested bushing;
further, the axial line of the axial loading mechanism is perpendicular to the side surface of the loading lining;
further, the axis of the radial loading mechanism is perpendicular to the horizontal line of the upper surface of the upper cover;
further, when the device is used, the area from the loading bushing to the process load body in the device belongs to a standardized process part, the tested bushing belongs to a replaceable test part, and a tester designs the tested end independently according to a test bearing structure, a lubrication mode and a bearing mounting structure; the special structures such as the elastic ring structure, the sealing ring structure, the common spring support structure, the turn-back spring support structure and the like can be simulated at the test end, the tested bearing is arranged at the other end of the shaft, the outer ring of the tested bearing is in contact with the inner part of the tested outer ring sleeve, and the axial loading mechanism and the radial loading mechanism are started to load the tested bearing;
the whole structure is a symmetrical structure, the tested bearing is located at one end of a shaft system of the tester during testing, two bearings are arranged in the middle of the shaft system, a one-to-one bearing is arranged at the other side of the shaft system, and the one-to-one bearing is mechanically pre-tightened through the size difference of the tool so as to improve the stability of operation. The radial load is applied to the middle two sets of roller process bearings by the radial loading mechanism and is transmitted to the test shaft, and then is transmitted to the inner ring of the test bearing by the test shaft to form an effective load, the distances between the bearing center of the tested bearing and the bearing centers of the one-to-one bearings are equal to the distance between the bearing centers of the radial loading mechanism, and the distribution uniformity of the radial load is ensured. And axial load is applied to the guide rod by the axial loading mechanism, the guide rod is utilized to push the shaft, and the axial load is applied to the outer ring of the right test bearing through the shaft to form effective application of the axial load, so that the test of the tested bearing is completed.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects of the prior art, the area from the loading bush to the process load body in the device belongs to a standardized process part, the test end belongs to a replaceable test part, the design of the standardized process part is solidified and can be directly used, and the part is produced and assembled in batches and is used as a standard component; the replaceable test part is designed and processed independently according to different test bearings, so that the workload of tool design is greatly reduced, and because the right end of the shafting is the test bearing part, the workload of dismounting by field operators is also greatly reduced by only dismounting the part during mounting and dismounting;
when the device is used, a tester designs the tested end independently according to a test bearing structure, a lubrication mode and a bearing mounting structure; the special structures such as the elastic ring structure, the sealing ring structure, the common spring support structure and the turn-back spring support structure can be simulated at the test end, so that the universality of the device is improved.
Drawings
FIG. 1 is a cross-sectional view of a bearing tester shafting structure according to the present invention;
FIG. 2 is a cross-sectional view of a conventional bearing test structure;
FIG. 3 is a schematic diagram of the area division of the standardized process part and the testable part in the bearing tester shafting structure according to the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 and fig. 3, and a bearing tester shafting structure according to the present embodiment includes an axial loading mechanism 1, a loading bushing 2, an upper cover 3, a sliding sleeve 4, a process bushing 5, a first bearing 6, a second bearing 7, a first spacer ring 8, a radial loading mechanism 9, a process load body 10, a second spacer ring 11, a tested bushing 12, a tested outer ring sleeve 13, an oil sealing flange 16, a coupling 17, a shaft 18, a dismounting ring 19, a shaft gland 20, a guide disc 21, a guide rod 22, an axial loading disc 23, and a base 24;
the upper surface of a base 24 is uniformly provided with a loading bush 2, a process bush 5 and a bush 12 to be tested from left to right, the middle part of the side surface of the loading bush 2 is provided with a through hole, an axial loading mechanism 1 is embedded in the through hole, the output end of the axial loading mechanism 1 is connected with one end of a guide rod 22, a guide disc 21 is arranged at the joint of the output end of the axial loading mechanism 1 and one end of the guide rod 22, the middle part of the side surface of the process bush 5 is provided with a counter bore, a sliding sleeve 4 is embedded in the counter bore, a one-to-one bearing 6 is embedded in the sliding sleeve 4, one end of a shaft 18 passes through the inner ring of the one-to-one bearing 6 and then is connected with a shaft gland 20, a one-to-two bearing 8 is arranged between the two one-to-one bearing 6, the outer side of the shaft gland 20 is provided with an axial loading disc 23, the outer side of the axial loading disc 23 is contacted with the other end of the guide rod 22, the middle part of the shaft 18 is provided with a one-to-two bearing 7, a process load body 10 is arranged on the outer ring of the pair of the second bearings 7, a second spacing ring 11 is arranged between the two second bearings 7, a dismounting ring 19 is arranged between the pair of the first bearings 6 and the pair of the second bearings 7, a through hole is formed in the middle of the side face of the tested bushing 12, a tested outer ring sleeve 13 is embedded in the through hole, the other end of the shaft 18 penetrates through the tested outer ring sleeve 13 and then is connected with one end of a coupling 17, an oil sealing flange 16 is arranged at the joint of the other end of the shaft 18 and one end of the coupling 17, the top end of the loading bushing 2 is detachably connected with one end of the lower surface of the upper cover 3, the top end of the tested bushing 12 is detachably connected with the other end of the lower surface of the upper cover 3, a radial loading mechanism 9 is arranged in the middle of the upper surface of the upper cover 3, and the output end of the radial loading mechanism 9 penetrates through the upper cover 3 and then is contacted with the outer surface of the process load body 10;
in the specific embodiment, when the device is used, the area from the loading bush 2 to the process load body 10 in the device belongs to a standardized process part, the tested bush 12 belongs to a replaceable test part, and a tester designs a tested end independently according to a test bearing structure, a lubrication mode and a bearing mounting structure; the special structures such as the elastic ring structure, the sealing ring structure, the common spring support structure, the turn-back spring support structure and the like can be simulated at the test end, the tested bearing is arranged at the other end of the shaft, the outer ring of the tested bearing 14 is in contact with the inside of the tested outer ring sleeve 13, and the axial loading mechanism 1 and the radial loading mechanism 9 are started to load the tested bearing;
the whole structure is a symmetrical structure, the tested bearing is located at one end of a shaft system of the tester during testing, two bearings 7 are arranged in the middle, a one-to-one bearing 6 is arranged at the other side, and the one-to-one bearing 6 is mechanically pre-tightened through the size difference of the tool so as to improve the stability of operation. The radial load is applied to the middle two sets of roller process bearings by the radial loading mechanism 9 and is transmitted to the test shaft, and then is transmitted to the inner ring of the tested bearing 14 by the test shaft to form an effective load, the distance between the bearing center of the tested bearing 14 and the bearing center of the one-to-one bearing 6 and the distance between the bearing center of the radial loading mechanism 9 are equal, and the distribution uniformity of the radial load is ensured. The axial load is applied to the guide rod 22 by the axial loading mechanism 1, the guide rod 22 is used for pushing the shaft 18, the axial load is applied to the outer ring of the right bearing to be tested 14 through the shaft 18, the axial load effective application is formed, and therefore the loading of the bearing to be tested 14 is completed.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation to the shafting structure in the first embodiment, in the shafting structure of the bearing tester in the present embodiment, the upper surface of the base 24 is detachably connected to the bottoms of the loading bush 2, the process bush 5 and the tested bush 12;
in the present embodiment, the upper surface of the base 24 is detachably connected to the bottoms of the loading bush 2, the process bush 5 and the tested bush 12, which facilitates the detachment of the device, thereby facilitating the cleaning of the device.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation to the shafting structure described in the first embodiment, and in the bearing tester shafting structure described in the present embodiment, the first bearing 6 is a double-half inner ring angular contact ball bearing.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1, which is a further limitation of the shafting structure according to the first embodiment, and the second bearing 7 is a cylindrical roller bearing according to the bearing tester shafting structure of the present embodiment.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation to the shafting structure according to the second embodiment, in the shafting structure of the bearing tester according to the present embodiment, an oil return hole is processed in the through hole in the middle of the side surface of the bush 12 to be tested;
in the embodiment, an oil return hole is processed in the through hole in the middle of the side surface of the tested bushing 12, so that the tested bearing 14 is lubricated.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation to the shafting structure of the first embodiment, in the bearing tester shafting structure of the present embodiment, the axial line of the axial loading mechanism 1 is perpendicular to the side surface of the loading bush 2;
in the embodiment, the axial line of the axial loading mechanism 1 is perpendicular to the side surface of the loading bush 2, so that the direction of the output force of the axial loading mechanism 1 is ensured, the axial line of the axial loading mechanism 1 and the axial line of the shaft 18 are arranged in a collinear manner, and the error of the testing device is reduced.
The seventh embodiment: the present embodiment is described with reference to fig. 1, and is a further limitation to the shafting structure of the first embodiment, and in the shafting structure of the bearing tester of the present embodiment, the axis of the radial loading mechanism 9 is perpendicular to the horizontal line of the upper surface of the upper cover 3.
Principle of operation
When in use, the area from the loading bush 2 to the process load body 10 in the device belongs to a standardized process part, the tested bush 12 belongs to a replaceable test part, and a tester designs a tested end independently according to a test bearing structure, a lubrication mode and a bearing mounting structure; the special structures such as the elastic ring structure, the sealing ring structure, the common spring support structure, the turn-back spring support structure and the like can be simulated at the test end, the tested bearing is arranged at the other end of the shaft, the outer ring of the tested bearing 14 is in contact with the inside of the tested outer ring sleeve 13, and the axial loading mechanism 1 and the radial loading mechanism 9 are started to load the tested bearing;
the whole structure is a symmetrical structure, the tested bearing is located at one end of a shaft system of the tester during testing, two bearings 7 are arranged in the middle, a one-to-one bearing 6 is arranged at the other side, and the one-to-one bearing 6 is mechanically pre-tightened through the size difference of the tool so as to improve the stability of operation. The radial load is applied to the middle two sets of roller process bearings by the radial loading mechanism 9 and is transmitted to the test shaft, and then is transmitted to the inner ring of the tested bearing 14 by the test shaft to form an effective load, the distance between the bearing center of the tested bearing 14 and the bearing center of the one-to-one bearing 6 and the distance between the bearing center of the radial loading mechanism 9 are equal, and the distribution uniformity of the radial load is ensured. The axial load is applied to the guide rod 22 by the axial loading mechanism 1, the guide rod 22 is used for pushing the shaft 18, the axial load is applied to the outer ring of the right bearing to be tested 14 through the shaft 18, the axial load effective application is formed, and therefore the loading of the bearing to be tested 14 is completed.
Claims (7)
1. The utility model provides a bearing tester shafting structure which characterized in that: the device comprises an axial loading mechanism (1), a loading bush (2), an upper cover (3), a sliding sleeve (4), a process bush (5), a first bearing (6), a second bearing (7), a first spacing ring (8), a radial loading mechanism (9), a process load body (10), a second spacing ring (11), a tested bush (12), a tested outer ring sleeve (13), an oil sealing flange (16), a coupling (17), a shaft (18), a dismounting ring (19), a shaft gland (20), a guide disc (21), a guide rod (22), an axial loading disc (23) and a base (24);
the upper surface of a base (24) is uniformly provided with a loading bush (2), a process bush (5) and a tested bush (12) from left to right, the middle part of the side surface of the loading bush (2) is provided with a through hole, an axial loading mechanism (1) is embedded in the through hole, the output end of the axial loading mechanism (1) is connected with one end of a guide rod (22), a guide disc (21) is arranged at the joint of the output end of the axial loading mechanism (1) and one end of the guide rod (22), the middle part of the side surface of the process bush (5) is provided with a counter bore, a sliding sleeve (4) is embedded in the counter bore, a one-to-one bearing (6) is embedded in the sliding sleeve (4), one end of a shaft (18) penetrates through the inner ring of the one-to-one bearing (6) and is connected with a shaft gland (20), a one-to-one spacing ring (8) is arranged between the two one-to-one bearing (6), and an axial loading disc (23) is arranged on the outer side of the shaft gland (20), the outer side of the axial loading disc (23) is in contact with the other end of the guide rod (22), a pair of second bearings (7) is arranged in the middle of the shaft (18), a process load body (10) is arranged on the outer rings of the pair of second bearings (7), a second spacing ring (11) is arranged between the two second bearings (7), a dismounting ring (19) is arranged between the pair of first bearings (6) and the pair of second bearings (7), a through hole is arranged in the middle of the side face of the tested bushing (12), a tested outer ring sleeve (13) is embedded in the through hole, the other end of the shaft (18) penetrates through the tested outer ring sleeve (13) and then is connected with one end of the coupling (17), an oil sealing flange (16) is arranged at the joint of the other end of the shaft (18) and one end of the coupling (17), the top end of the loading bushing (2) is detachably connected with one end of the lower surface of the upper cover (3), and the top end of the tested bushing (12) is detachably connected with the other end of the lower surface of the upper cover (3), the middle of the upper surface of the upper cover (3) is provided with a radial loading mechanism (9), and the output end of the radial loading mechanism (9) is contacted with the outer surface of the process load body (10) after passing through the upper cover (3).
2. The bearing tester shafting structure of claim 1, wherein: the upper surface of the base (24) is detachably connected with the bottoms of the loading bushing (2), the process bushing (5) and the tested bushing (12).
3. The bearing tester shafting structure of claim 1, wherein: the first bearing (6) is a double-half inner ring angular contact ball bearing.
4. The bearing tester shafting structure of claim 1, wherein: the second bearing (7) is a cylindrical roller bearing.
5. The bearing tester shafting structure of claim 2, wherein: and an oil return hole is processed in the through hole in the middle of the side surface of the tested bush (12).
6. The bearing tester shafting structure of claim 1, wherein: the axial line of the axial loading mechanism (1) is perpendicular to the side surface of the loading bush (2).
7. The bearing tester shafting structure of claim 1, wherein: the axial line of the radial loading mechanism (9) is vertical to the horizontal line of the upper surface of the upper cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438103.2A CN114076677A (en) | 2021-11-29 | 2021-11-29 | Bearing tester shafting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438103.2A CN114076677A (en) | 2021-11-29 | 2021-11-29 | Bearing tester shafting structure |
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| Publication Number | Publication Date |
|---|---|
| CN114076677A true CN114076677A (en) | 2022-02-22 |
Family
ID=80284456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111438103.2A Pending CN114076677A (en) | 2021-11-29 | 2021-11-29 | Bearing tester shafting structure |
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| Country | Link |
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| CN (1) | CN114076677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813127A (en) * | 2022-04-13 | 2022-07-29 | 中国航发哈尔滨轴承有限公司 | A small bearing high speed tester test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2645643A1 (en) * | 1989-04-05 | 1990-10-12 | Gironnet Bernard | Device for applying a load of determined and adjustable intensity and direction to at least one ball bearing associated with a rotating shaft |
| CN109141877A (en) * | 2017-06-27 | 2019-01-04 | 上海电驱动股份有限公司 | A kind of bearing test device for driving motor |
| CN109141879A (en) * | 2018-10-24 | 2019-01-04 | 中国航发哈尔滨轴承有限公司 | A kind of bearing tester |
| CN109855872A (en) * | 2019-03-26 | 2019-06-07 | 成都天马精密机械有限公司 | A kind of general roller bearing testing machine |
| CN110243602A (en) * | 2019-07-19 | 2019-09-17 | 中国航空综合技术研究所 | Oscillating bearing cold scuffing pilot system and its assemble method |
-
2021
- 2021-11-29 CN CN202111438103.2A patent/CN114076677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2645643A1 (en) * | 1989-04-05 | 1990-10-12 | Gironnet Bernard | Device for applying a load of determined and adjustable intensity and direction to at least one ball bearing associated with a rotating shaft |
| CN109141877A (en) * | 2017-06-27 | 2019-01-04 | 上海电驱动股份有限公司 | A kind of bearing test device for driving motor |
| CN109141879A (en) * | 2018-10-24 | 2019-01-04 | 中国航发哈尔滨轴承有限公司 | A kind of bearing tester |
| CN109855872A (en) * | 2019-03-26 | 2019-06-07 | 成都天马精密机械有限公司 | A kind of general roller bearing testing machine |
| CN110243602A (en) * | 2019-07-19 | 2019-09-17 | 中国航空综合技术研究所 | Oscillating bearing cold scuffing pilot system and its assemble method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813127A (en) * | 2022-04-13 | 2022-07-29 | 中国航发哈尔滨轴承有限公司 | A small bearing high speed tester test device |
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Application publication date: 20220222 |
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