CN112857802A - Bridge structure bearing inner race rotation test device - Google Patents
Bridge structure bearing inner race rotation test device Download PDFInfo
- Publication number
- CN112857802A CN112857802A CN202110253509.7A CN202110253509A CN112857802A CN 112857802 A CN112857802 A CN 112857802A CN 202110253509 A CN202110253509 A CN 202110253509A CN 112857802 A CN112857802 A CN 112857802A
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- Prior art keywords
- bearing
- loading
- outer ring
- test device
- sleeved
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 claims description 37
- 125000006850 spacer group Chemical group 0.000 claims description 21
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
-
- 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)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a bearing outer ring rotation test device with a bridge structure, in particular to a bearing outer ring rotation test device, which aims to solve the problem that the rotation precision is reduced due to insufficient size span when a tester of an outer ring rotation bearing is provided with a rotating shaft, the bearing outer ring rotation test device comprises a base, wherein the base comprises a test shell, an upper cover and the base, the upper cover and the test shell are arranged from top to bottom, the upper cover of the base is covered on the upper cover, the bridge-type structure bearing outer ring rotation test device also comprises a rotating shaft assembly and a loading fixed shaft assembly, the rotating shaft assembly is horizontally arranged between the right side wall of the upper cover and the right side wall of the test shell, the loading fixed shaft assembly is horizontally arranged between the left side wall of the upper cover and the left side wall of the test shell, the rotating shaft assembly is connected with the loading fixed shaft assembly, and the joint of the rotating shaft assembly and the loading fixed shaft assembly is positioned in the base. The invention belongs to the technical field of bearings.
Description
Technical Field
The invention relates to a bearing outer ring rotation test device, in particular to a bridge-type structure bearing outer ring rotation test device, and belongs to the technical field of bearings.
Background
In recent years, with the expansion of the use pattern of rolling bearings, outer ring rolling bearings have been developed. The outer ring rotating bearing breaks through the fixation of an outer ring of a common inner ring rotating bearing, the use mode of the rotation of the inner ring is that the inner ring is fixed and the outer ring rotates, and the rotation of the outer ring needs higher rotation precision requirements which are different from the rotation of the inner ring rotating bearing, so that the inner diameter and the outer diameter of the outer ring rotating bearing are both over-hard matching, and the installation coaxiality requirements of the inner ring and the outer ring are higher. The relevant experimental verification of the outer ring rotating bearing is changed.
The tester structure generally divide into cantilever structure and bridge type structure two kinds, utilizes the improvement of suspension wall structure to realize outer lane slew bearing's experiment, and is relatively simpler, nevertheless because the span of cantilever structure installation rotation axis is great, receives the structure influence during the operation, and there is the radial runout of different degrees in the installation rotation axis, leads to the unable stable rotatory bearing test of operation outer lane of tester of cantilever structure.
The prior bridge structure tester shown in the drawing I of the specification is a bridge type bearing structure with rigid supports at two ends of a test main shaft and radial loading in the middle, which is referred to as a bridge structure for short. The bridge structure is limited by the axial size of the supporting end, the size span of the installation rotating shaft is insufficient, the rotation precision is reduced, and the outer ring rotating bearing test cannot be stably operated.
Disclosure of Invention
The invention provides a bearing outer ring rotation test device with a bridge structure, aiming at solving the problem that the rotation precision is reduced due to insufficient size span when a tester of an outer ring rotation bearing is provided with a rotating shaft.
The technical scheme adopted by the invention for solving the problems is as follows:
the invention comprises a base, wherein the base comprises a test shell, an upper cover and a base, the upper cover and the test shell are arranged from top to bottom, the upper cover of the base is covered on the upper cover, the bridge-type structure bearing outer ring rotation test device further comprises a rotating shaft assembly and a loading fixed shaft assembly, the rotating shaft assembly is horizontally arranged between the right side wall of the upper cover and the right side wall of the test shell, the loading fixed shaft assembly is horizontally arranged between the left side wall of the upper cover and the left side wall of the test shell, the rotating shaft assembly is connected with the loading fixed shaft assembly, and the connection position of the rotating shaft assembly and the loading fixed shaft assembly is positioned in the base.
Furthermore, the rotating shaft assembly comprises a rotating shaft, a bearing pressing plate, a detaching ring, a 1B process bearing, an inner ring spacer bush, an outer ring spacer bush, a 1A process bearing and a coupling, the detaching ring is sleeved on the rotating shaft, the 1B process bearing and the 1A process bearing are sleeved on the detaching ring, the inner ring spacer bush and the outer ring spacer bush are sequentially sleeved on the detaching ring from inside to outside, and the inner ring spacer bush is positioned between the inner rings of the 1B process bearing and the 1A process bearing; the outer ring spacer bush is positioned between the outer rings of the 1B process bearing and the 1A process bearing, the bearing pressure plate is connected with the left end of the rotating shaft, and the coupling is connected with the right end of the rotating shaft.
Furthermore, the bridge-type structure bearing outer ring rotation test device further comprises a support bushing and a bushing flange plate, the support bushing is sleeved on the outer rings of the 1B process bearing and the 1A process bearing, the bushing flange plate is sleeved on the coupling, and the support bushing is connected with the bushing flange plate through screws.
Further, the loading fixed shaft assembly comprises a loading fixed shaft, a SY disassembly ring and a test bearing, the SY disassembly ring is sleeved at the right end of the loading fixed shaft, and the test bearing is sleeved on the SY disassembly ring.
Furthermore, an open slot is formed in the left end of the rotating shaft, and the open slot is sleeved on the outer ring of the test bearing.
Further, the bridge-type structure bearing outer ring rotation test device further comprises a centering bushing, and the centering bushing is sleeved in the middle of the loading fixing shaft.
Furthermore, the bridge-type structure bearing outer ring rotation test device further comprises a loading gland and a loading flange plate, the loading flange plate is sleeved on the loading fixing shaft and located on the left side of the centering lining, the loading gland is sleeved at the left end of the loading fixing shaft, and the loading gland is connected with the loading flange plate through a screw.
The invention has the beneficial effects that:
the invention utilizes the structural characteristics of the test base, changes the axial loading piston into the loading fixed shaft, provides reliable support and stable axial load through the inner ring of the test bearing, adjusts the support span of the outer ring rotating shaft to the maximum allowable span, and simultaneously is arranged in a bushing, thereby improving the stability and ensuring sufficient drive input. The test bearing is arranged in the test base, a radial loading device is omitted, and a sufficient oil return space is ensured. The invention has reasonable structural design and can meet the test of the tester of the outer ring rotating bearing with the maximum 15000 r/min.
Drawings
FIG. 1 is a schematic diagram of a prior art bridge configuration tester;
in the figure: 101-longitudinal loading piston; 102-a load body; 103-test spindle; bearing number 104-1; bearing number 105-2; bearing number 106-3; bearing No. 107-4; 108-a spacer ring; 109-a locking nut; 110-axially load the piston.
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 1-base; 1-1-upper cover, 1-2-test shell; 1-3-radial loading gland; 1-1-1-lubrication oil return passage; 1-1-2-lubricating oil inlet channel; 2-rotating shaft, 3-bearing pressure plate, 4-disassembling ring, 5-1B process bearing, 6-inner ring spacer bush, 7-outer ring spacer bush and 8-1A process bearing; 9-coupling; 10 supporting the liner; 11-a bushing flange; 12-loading a stationary shaft, 13-SY removal ring; 14-test bearings; 15-centering the bushing; 16-loading gland; 17-loading flange.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 2, the bridge-type structure bearing outer ring rotation test device in the embodiment includes a base 1, the base 1 includes a test housing 1-2, an upper cover 1-1 and a base upper cover 1-3, the upper cover 1-1 and the test housing 1-2 are arranged from top to bottom, the base upper cover 1-3 is covered on the upper cover 1-1, the bridge-type structure bearing outer ring rotation test device further includes a rotating shaft assembly and a loading fixed shaft assembly, the rotating shaft assembly is horizontally arranged between a right side wall of the upper cover 1-1 and a right side wall of the test housing 1-2, the loading fixed shaft assembly is horizontally arranged between a left side wall of the upper cover 1-1 and a left side wall of the test housing 1-2, the rotating shaft assembly is connected with the loading fixed shaft assembly, and the joint of the rotating shaft assembly and the loading fixed shaft assembly is positioned in the base 1.
The middle part of the upper surface of the test shell 1-2 is provided with a lubricating oil return passage 1-1-1, and two sides of the lubricating oil return passage 1-1-1 are oppositely provided with lubricating oil inlet passages 1-1-2.
The second embodiment is as follows: the embodiment is described with reference to fig. 2, the rotating shaft assembly in the embodiment includes a rotating shaft 2, a bearing pressure plate 3, a dismounting ring 4, a 1B process bearing 5, an inner ring spacer 6, an outer ring spacer 7, a 1A process bearing 8 and a coupling 9, the dismounting ring 4 is sleeved on the rotating shaft 2, the 1B process bearing 5 and the 1A process bearing 8 are both sleeved on the dismounting ring 4, the inner ring spacer 6 and the outer ring spacer 7 are sequentially sleeved on the dismounting ring 4 from inside to outside, and the inner ring spacer 6 is located between inner rings of the 1B process bearing 5 and the 1A process bearing 8; the outer ring spacer 7 is positioned between the outer rings of the 1B process bearing 5 and the 1A process bearing 8, the bearing pressure plate 3 is connected with the left end of the rotating shaft 2, and the coupling 9 is connected with the right end of the rotating shaft 2.
The 1B process bearing 5 and the 1A process bearing 8 are in interference fit with the rotating shaft.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 2, the rotation test apparatus for a bridge-type structure bearing outer ring according to the present embodiment further includes a support bushing 10 and a bushing flange 11, the support bushing 10 is sleeved on the outer ring of the 1B process bearing 5 and the 1A process bearing 8, the bushing flange 11 is sleeved on the coupling 9, and the support bushing 10 is connected with the bushing flange 11 through a screw.
Other components and connection relationships are the same as those in the first or second embodiment.
The fourth concrete implementation mode: referring to fig. 2, the loading fixed shaft assembly of the present embodiment includes a loading fixed shaft 12, a SY removing ring 13 and a test bearing 14, wherein the SY removing ring 13 is sleeved on the right end of the loading fixed shaft 12, and the test bearing 14 is sleeved on the SY removing ring 13.
The test bearing 14 is in interference fit with the loading fixed shaft 12.
Other components and connection relationships are the same as those in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 2, the left end of the rotating shaft 2 of the present embodiment is provided with an open groove, and the open groove is fitted over the outer ring of the test bearing 14.
The rotating shaft 2 is in interference fit with the outer ring of the bearing, the rotating shaft is heated to 120 ℃, is sleeved on the outer ring of the test bearing, and is fixedly connected with the bearing pressing plate through screws.
Other components and connections are the same as those of the first, second, third or fourth embodiments.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 2, and the bearing outer ring rotation test apparatus with a bridge structure according to the present embodiment further includes a centering bush 15, and the centering bush 15 is sleeved on the middle portion of the loading fixed shaft 12.
Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 2, the present embodiment is described, and the bridge-type bearing outer ring rotation test apparatus according to the present embodiment further includes a loading gland 16 and a loading flange 17, the loading flange 17 is mounted on the loading fixed shaft 12 and located at the left side of the centering bush 15, the loading gland 16 is mounted on the left end of the loading fixed shaft 12, and the loading gland 16 is connected to the loading flange 17 through screws.
Other components and connection relationships are the same as those in the first, second, third, fourth, fifth or sixth embodiment.
The working principle is as follows:
the inner ring of the test bearing 14 is connected with the loading fixed shaft 12 and applies axial force, the rotating shaft 2 is supported by two process bearings of a 1A process bearing and a 1B process bearing, and the driving motor is connected with the rotating shaft 2 through a coupling 9. During testing, the driving motor outputs torque, and the driving torque is transmitted to the outer ring of the test bearing 14 through the coupling 9 and the rotating shaft 2, so that the outer ring of the test bearing 14 is driven to rotate.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a bridge type structure bearing inner race rotation test device, it includes base (1), and base (1) is including experimental casing (1-2), upper cover (1-1) and radial loading gland (1-3), and upper cover (1-1) and experimental casing (1-2) set up from top to bottom, and radial loading gland (1-3) lid dress is on upper cover (1-1), its characterized in that: the utility model provides a bridge type structure bearing inner race rotation test device still includes rotation axis subassembly and the fixed axle subassembly of loading, rotation axis subassembly level sets up between the right side wall of upper cover (1-1) and the right side wall of experimental casing (1-2), the fixed axle subassembly level of loading sets up between the left side wall of upper cover (1-1) and the left side wall of experimental casing (1-2), the rotation axis subassembly with the fixed axle subassembly of loading is connected, just the rotation axis subassembly with the junction of fixed axle subassembly of loading is located base (1).
2. The bridge structure bearing outer ring rotation test device of claim 1, wherein: the rotating shaft assembly comprises a rotating shaft (2), a bearing pressing plate (3), a detaching ring (4), a 1B process bearing (5), an inner ring spacer bush (6), an outer ring spacer bush (7), a 1A process bearing (8) and a coupling (9), wherein the detaching ring (4) is sleeved on the rotating shaft (2), the 1B process bearing (5) and the 1A process bearing (8) are both sleeved on the detaching ring (4), the inner ring spacer bush (6) and the outer ring spacer bush (7) are sequentially sleeved on the detaching ring (4) from inside to outside, and the inner ring spacer bush (6) is positioned between the inner rings of the 1B process bearing (5) and the 1A process bearing (8); an outer ring spacer bush (7) is positioned between the outer rings of the 1B process bearing (5) and the 1A process bearing (8), a bearing pressure plate (3) is connected with the left end of the rotating shaft (2), and a coupling (9) is connected with the right end of the rotating shaft (2).
3. The bridge structure bearing outer ring rotation test device of claim 2, wherein: the bridge-structure bearing outer ring rotation test device further comprises a support bushing (10) and a bushing flange plate (11), the support bushing (10) is sleeved on the outer rings of the 1B process bearing (5) and the 1A process bearing (8), the bushing flange plate (11) is sleeved on the coupling (9), and the support bushing (10) is connected with the bushing flange plate (11) through screws.
4. The bridge structure bearing outer ring rotation test device of claim 2, wherein: the loading fixed shaft assembly comprises a loading fixed shaft (12), a SY dismounting ring (13) and a test bearing (14), the SY dismounting ring (13) is sleeved at the right end of the loading fixed shaft (12), and the test bearing (14) is sleeved on the SY dismounting ring (13).
5. A bridge bearing outer race rotation test apparatus according to any one of claims 2 or 4, wherein: an open slot is arranged at the left end of the rotating shaft (2), and the open slot is sleeved on the outer ring of the test bearing (14).
6. The bridge structure bearing outer ring rotation test device of claim 4, wherein: the bridge-type structure bearing outer ring rotation test device further comprises a centering bush (15), and the centering bush (15) is sleeved in the middle of the loading fixing shaft (12).
7. The bridge structure bearing outer ring rotation test device of claim 4, wherein: the bridge-type structure bearing outer ring rotation test device further comprises a loading gland (16) and a loading flange plate (17), wherein the loading flange plate sleeve (17) is arranged on the loading fixed shaft (12) and located on the left side of the centering bushing (15), the loading gland (16) is sleeved at the left end of the loading fixed shaft (12), and the loading gland (16) is connected with the loading flange plate (17) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253509.7A CN112857802A (en) | 2021-03-09 | 2021-03-09 | Bridge structure bearing inner race rotation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253509.7A CN112857802A (en) | 2021-03-09 | 2021-03-09 | Bridge structure bearing inner race rotation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112857802A true CN112857802A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110253509.7A Pending CN112857802A (en) | 2021-03-09 | 2021-03-09 | Bridge structure bearing inner race rotation test device |
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| Country | Link |
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| CN (1) | CN112857802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136615A (en) * | 2021-11-26 | 2022-03-04 | 中国航发哈尔滨轴承有限公司 | Bearing testing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007178268A (en) * | 2005-12-28 | 2007-07-12 | Ntn Corp | Bearing testing device and bearing testing method |
| JP2014202639A (en) * | 2013-04-05 | 2014-10-27 | 日本精工株式会社 | Test device for radial rolling bearing |
| CN205670083U (en) * | 2016-06-20 | 2016-11-02 | 中航工业哈尔滨轴承有限公司 | A kind of rolling bearing exerciser extension thrust bearing tester |
| CN205981693U (en) * | 2016-08-30 | 2017-02-22 | 中航工业哈尔滨轴承有限公司 | High -speed aircraft bearing test device |
| CN111289249A (en) * | 2020-04-16 | 2020-06-16 | 洛阳Lyc轴承有限公司 | High-rotating-speed bearing oil receiving efficiency testing device and testing method |
-
2021
- 2021-03-09 CN CN202110253509.7A patent/CN112857802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007178268A (en) * | 2005-12-28 | 2007-07-12 | Ntn Corp | Bearing testing device and bearing testing method |
| JP2014202639A (en) * | 2013-04-05 | 2014-10-27 | 日本精工株式会社 | Test device for radial rolling bearing |
| CN205670083U (en) * | 2016-06-20 | 2016-11-02 | 中航工业哈尔滨轴承有限公司 | A kind of rolling bearing exerciser extension thrust bearing tester |
| CN205981693U (en) * | 2016-08-30 | 2017-02-22 | 中航工业哈尔滨轴承有限公司 | High -speed aircraft bearing test device |
| CN111289249A (en) * | 2020-04-16 | 2020-06-16 | 洛阳Lyc轴承有限公司 | High-rotating-speed bearing oil receiving efficiency testing device and testing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136615A (en) * | 2021-11-26 | 2022-03-04 | 中国航发哈尔滨轴承有限公司 | Bearing testing machine |
| CN114136615B (en) * | 2021-11-26 | 2024-02-27 | 中国航发哈尔滨轴承有限公司 | Bearing testing machine |
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Application publication date: 20210528 |