CN112629856A - Large-scale aeroengine bearing testing machine bed body with expanded function - Google Patents
Large-scale aeroengine bearing testing machine bed body with expanded function Download PDFInfo
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- CN112629856A CN112629856A CN202011466601.3A CN202011466601A CN112629856A CN 112629856 A CN112629856 A CN 112629856A CN 202011466601 A CN202011466601 A CN 202011466601A CN 112629856 A CN112629856 A CN 112629856A
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- bed body
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- bearing
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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
Abstract
The invention belongs to the field of aviation bearing tests, and particularly relates to a large-scale aeroengine bearing testing machine bed body with an expandable function, which aims to solve the same bed body test requirement of a standard structure bearing and an engine structure integrated complex appearance bearing faced by the current large-scale aeroengine main shaft bearing test, and the problem that the existing large-scale aeroengine bearing testing machine bed body cannot meet the requirement at the same time, and comprises a lower bed body, a middle cover, two side covers and two end covers; the lower bed body is a main part of a large-scale aero-engine bearing testing machine bed body with an expandable function, and the middle cover is arranged in the middle of the lower bed body and is used as an upper cover to be combined with the lower bed body to form a standard bearing testing cavity. The standard bearings can be arranged in the seat holes at two sides of the middle cover, and two ends of the standard bearings are sealed by the test tools, so that the problems that a large-scale aero-engine standard appearance bearing and a structure-integrated complex appearance bearing bed body are not universal, the tool design difference is large, and partial tests cannot be carried out are solved.
Description
Technical Field
The invention belongs to the field of aviation bearing tests, and particularly relates to a large-scale aero-engine bearing test machine tool body with an extensible function.
Background
Along with the increasing demand of engine capacity, the structure and test working condition of a novel large-scale aircraft engine main shaft bearing are increasingly complex, and the main shaft bearing and the engine structure are integrated to cause the structure of a bearing outer ring with a turn-back elastic support, a mounting edge, a flange plate and the like. The bearing external diameter size increases by a wide margin, but the bearing tester both undertakes the standard construction bearing of current use, will satisfy the experimental demand of development of novel large-scale aeroengine main shaft bearing again, and current large-scale aeroengine bearing testing machine bed body can't compromise and satisfy this demand.
Disclosure of Invention
The invention discloses the following purposes: the invention provides a large-scale aero-engine bearing testing machine bed body with an expandable function, and aims to solve the problem that the existing large-scale aero-engine bearing testing machine bed body cannot meet the requirement of the same bed body testing requirement of a standard structure bearing and an engine structure integrated complex appearance bearing faced by the current large-scale aero-engine main shaft bearing test.
To achieve the above object: the large-scale aeroengine bearing testing machine bed body with the expandable function comprises a lower bed body, a middle cover, two side covers and two end covers;
the middle cover is arranged on the lower bed body, the middle cover and the lower bed body jointly form five cavities which are distributed along the same axis, two outermost cavities are cylindrical, the middle cavity is arranged symmetrically by taking the middle cavity as a center, the two outermost end cavities are complex bearing seat holes, the two secondary outer end cavities are cylindrical, the middle cavity is arranged symmetrically by taking the middle cavity as a center, the two secondary outer end cavities are standard bearing seat holes, the two side covers are symmetrically arranged on the lower bed body by taking the middle cover as a reference, one end of each side cover is lapped on the edge of the middle cover, and laminate completely with the edge of well lid, the other end of every side cap constitutes two cavities with the lower bed body jointly, and the tip of the other end of every side cap is cylindrical with one of them cavity that the lower bed body constitutes, and every end cover all is connected in the cavity of the lower bed body and a side cap, and every end cover middle part all is equipped with a shaft hole.
Further, the diameter of the standard bearing housing hole is larger than that of the complex bearing housing hole.
Furthermore, the front end and the rear end of the middle cover are respectively provided with a plurality of first connecting holes, the front end and the rear end of the side cover are respectively provided with a plurality of second connecting holes, the front end and the rear end of the upper end surface of the lower bed body are respectively provided with a plurality of third connecting holes, the first connecting holes on the middle cover correspond to the third connecting holes in the middle of the lower bed body, and the second connecting holes on the side cover correspond to the third connecting holes at the two ends of the lower bed body.
Further, the front end and the rear end of the lower bed body are provided with bosses extending outwards, and a plurality of vertically arranged connecting holes IV are formed in the bosses at the front end and the rear end.
Furthermore, the top end of the middle cover is provided with a first through hole, a plurality of first small holes distributed by the circle center circumference of the first through hole are formed in the outer side of the first through hole, a second through hole is formed in the top end of the side cover, and a plurality of second small holes distributed by the circle center circumference of the second through hole are formed in the outer side of the second through hole.
Furthermore, the front end and the rear end of the upper middle cavity of the lower bed body are provided with a third through hole.
Furthermore, a through hole IV is formed in the other cavity formed by the end part of the other end of each side cover and the lower bed body, and the front end and the rear end of the lower bed body.
Preferably, square notches are formed in the three through holes and the four through holes of the lower bed body.
Has the advantages that: the lower bed body is a main component of a large-scale aero-engine bearing testing machine bed body with an expandable function, and the middle cover is arranged in the middle of the lower bed body and is used as an upper cover to be combined with the lower bed body to form a standard bearing testing cavity. The standard bearing can be arranged in the seat holes at two sides of the middle cover, and two ends of the standard bearing are sealed by the test tool. Under the expansion state, the upper covers are symmetrically arranged on two sides of the middle cover on the basis of the standard bearing test cavity, the engine structure integrated complex-appearance bearing expansion cavity is formed on two sides of the standard bearing test cavity, and the engine structure integrated complex-appearance bearing is arranged in the bearing expansion seat holes of the complex structures of the upper covers on two sides. Then, end covers are symmetrically arranged on two sides of the expansion cavity to seal the expansion cavity, so that an expanded complete bed body is formed.
The aperture of the standard bearing seat hole is 240mm, and the bearing seat is suitable for installation and test of the standard appearance bearing of various large-scale aircraft engines at present. The diameter of the expanded seat hole of the bearing with the complex structure is 330mm after expansion, and the bearing expansion seat hole is suitable for installation and test of bearings with integrated complex shapes of structures of various large-scale aircraft engines at present. The bearing testing machine can be used for carrying out the existing and large-scale aero-engine bearing tests on the large-scale aero-engine bearing testing machine body with the expandable function. The problems that a large-scale aero-engine bearing with a standard appearance and a bearing body with a complex appearance integrated with a structure are not universal, tooling design differences are large, and partial tests cannot be carried out are solved.
Drawings
FIG. 1 is a sectional view of a large aircraft engine bearing tester bed with expandable function according to the present invention;
FIG. 2 is a schematic diagram of the end cover of the testing machine bed body of the large-scale aero-engine bearing with expandable function of the invention;
FIG. 3 is a schematic view of the lower bed body of the large aircraft engine bearing testing machine bed body with expandable function of the invention;
FIG. 4 is a schematic diagram of a middle cover of the large aircraft engine bearing testing machine bed body with expandable function of the invention;
FIG. 5 is a schematic view of an upper cover of the large aircraft engine bearing tester bed body with expandable function of the invention;
FIG. 6 is a perspective view of the bed body of the large aero-engine bearing testing machine with expandable function of the present invention.
Detailed Description
The first embodiment is as follows: the large-scale aeroengine bearing testing machine bed body with the expandable function comprises a lower bed body 6, a middle cover 4, two side covers 2 and two end covers 1;
the middle cover 4 is arranged on the lower bed body 6, the middle cover 4 and the lower bed body jointly form five cavities, the five cavities are distributed along the same axis, two outermost cavities are cylindrical and symmetrically arranged by taking the middle cavity 7 as a center, two outermost cavities are complex bearing seat holes 3, two secondary outer cavities are cylindrical and symmetrically arranged by taking the middle cavity 7 as a center, two secondary outer cavities are standard bearing seat holes 5, two side covers 2 are symmetrically arranged on the lower bed body 6 by taking the middle cover 4 as a reference, one end of each side cover 2 is lapped on the edge of the middle cover and completely attached to the edge of the middle cover 4, the other end of each side cover 2 and the lower bed body jointly form two cavities, one of the cavities formed by the end part of the other end of each side cover 2 and the lower bed body 6 is cylindrical, and each end cover 1 is connected in the cavities of the lower bed body and one of the side cover 2, the middle part of each end cover 1 is provided with an axle hole 8.
The second embodiment is as follows: the diameter of the standard bearing seat hole 5 is larger than that of the complex bearing seat hole 3.
Other embodiments are the same as the first embodiment.
The third concrete implementation mode: the front end and the rear end of the middle cover 4 are provided with a plurality of first connecting holes, the front end and the rear end of the side cover 2 are provided with a plurality of second connecting holes, the front end and the rear end of the upper end face of the lower bed body 6 are provided with a plurality of third connecting holes, the first connecting holes on the middle cover 4 correspond to the third connecting holes in the middle of the lower bed body 6, and the second connecting holes on the side cover 2 correspond to the third connecting holes at the two ends of the lower bed body 6.
The other embodiments are the same as the first embodiment.
The fourth concrete implementation mode: the front end and the rear end of the lower bed body 6 are provided with bosses extending outwards, and a plurality of vertically arranged connecting holes IV are arranged on the bosses at the front end and the rear end.
The other embodiments are the same as the first embodiment.
The fifth concrete implementation mode: the top end of the middle cover 4 is provided with a first through hole, a plurality of first small holes distributed circumferentially around the circle center of the first through hole are formed in the outer side of the first through hole, a second through hole is formed in the top end of the side cover 2, and a plurality of second small holes distributed circumferentially around the circle center of the second through hole are formed in the outer side of the second through hole.
The other embodiments are the same as the first embodiment.
The sixth specific implementation mode: the front end and the rear end of the upper middle cavity 7 of the lower bed body 6 are provided with a third through hole.
The other embodiments are the same as the first embodiment.
The seventh embodiment: the end part of the other end of each side cover 2 and the lower bed body 6 form another cavity, and the front end and the rear end of the lower bed body 6 are provided with four through holes.
The other embodiments are the same as the first embodiment.
The seventh embodiment: the three through holes and the four through holes of the lower bed body 6 are provided with square notches.
The other embodiments are the same as the first embodiment.
Claims (8)
1. Large-scale aeroengine bearing testing machine bed body with expanded function, its characterized in that: it comprises a lower bed body (6), a middle cover (4), two side covers (2) and two end covers (1);
the middle cover (4) is arranged on the lower bed body (6), the middle cover (4) and the lower bed body jointly form five cavities, the five cavities are distributed along the same axis, the two outermost end cavities are cylindrical, the two outermost end cavities are arranged symmetrically by taking the middle cavity (7) as the center, the two outermost end cavities are complex bearing seat holes (3), the two secondary outer end cavities are cylindrical, the middle cavity (7) is arranged symmetrically by taking the middle cavity (7) as the center, the two secondary outer end cavities are standard bearing seat holes (5), the two side covers (2) are symmetrically arranged on the lower bed body (6) by taking the middle cover (4) as the reference, one end of each side cover (2) is lapped on the edge of the middle cover and completely attached to the edge of the middle cover (4), the other end of each side cover (2) and the lower bed body jointly form two cavities, the end part of the other end of each side cover (2) and one cavity formed by the lower bed body (6) are cylindrical, each end cover (1) is connected in the cavity of the lower bed body and one side cover (2), and the middle part of each end cover (1) is provided with one shaft hole (8).
2. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the diameter of the standard bearing seat hole (5) is larger than that of the complex bearing seat hole (3).
3. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the front end and the rear end of the middle cover (4) are provided with a plurality of first connecting holes, the front end and the rear end of the side cover (2) are provided with a plurality of second connecting holes, the front end and the rear end of the upper end face of the lower bed body (6) are provided with a plurality of third connecting holes, the first connecting holes in the middle cover (4) correspond to the third connecting holes in the middle of the lower bed body (6), and the second connecting holes in the side cover (2) correspond to the third connecting holes in the two ends of the lower bed body (6).
4. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the front end and the rear end of the lower bed body (6) are provided with bosses extending outwards, and a plurality of vertically arranged connecting holes IV are arranged on the bosses at the front end and the rear end.
5. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the top end of the middle cover (4) is provided with a first through hole, a plurality of first small holes distributed by the circle center circumference of the first through hole are formed in the outer side of the first through hole, a second through hole is formed in the top end of the side cover (2), and a plurality of second small holes distributed by the circle center circumference of the second through hole are formed in the outer side of the second through hole.
6. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the front end and the rear end of the upper middle cavity (7) of the lower bed body (6) are provided with a third through hole.
7. The large-scale aeroengine bearing testing machine bed with expandable function of claim 1, characterized in that: the end part of the other end of each side cover (2) and the other cavity formed by the lower bed body (6) are provided with four through holes at the front end and the rear end of the lower bed body (6).
8. The large-scale aeroengine bearing testing machine bed with expandable function of claim 6 or 7, characterized in that: the three through holes and the four through holes of the lower bed body (6) are provided with square notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466601.3A CN112629856A (en) | 2020-12-14 | 2020-12-14 | Large-scale aeroengine bearing testing machine bed body with expanded function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466601.3A CN112629856A (en) | 2020-12-14 | 2020-12-14 | Large-scale aeroengine bearing testing machine bed body with expanded function |
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| CN112629856A true CN112629856A (en) | 2021-04-09 |
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| CN202011466601.3A Pending CN112629856A (en) | 2020-12-14 | 2020-12-14 | Large-scale aeroengine bearing testing machine bed body with expanded function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014167471A (en) * | 2013-02-01 | 2014-09-11 | Toshihiro Ozasa | Bearing testing device |
| 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 |
| CN106769042A (en) * | 2016-12-26 | 2017-05-31 | 河南科技大学 | A kind of cylinder roller bearing birotor testing machine |
| CN206311337U (en) * | 2016-12-26 | 2017-07-07 | 河南科技大学 | A kind of cylinder roller bearing birotor testing machine |
| CN111024329A (en) * | 2019-12-28 | 2020-04-17 | 清华大学 | High-pressure rotation combined sealing element performance detection and test device and method |
-
2020
- 2020-12-14 CN CN202011466601.3A patent/CN112629856A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014167471A (en) * | 2013-02-01 | 2014-09-11 | Toshihiro Ozasa | Bearing testing device |
| 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 |
| CN106769042A (en) * | 2016-12-26 | 2017-05-31 | 河南科技大学 | A kind of cylinder roller bearing birotor testing machine |
| CN206311337U (en) * | 2016-12-26 | 2017-07-07 | 河南科技大学 | A kind of cylinder roller bearing birotor testing machine |
| CN111024329A (en) * | 2019-12-28 | 2020-04-17 | 清华大学 | High-pressure rotation combined sealing element performance detection and test device and method |
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Application publication date: 20210409 |
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