CN113567121A - Helicopter engine input end shafting bearing test loading device - Google Patents
Helicopter engine input end shafting bearing test loading device Download PDFInfo
- Publication number
- CN113567121A CN113567121A CN202110997624.5A CN202110997624A CN113567121A CN 113567121 A CN113567121 A CN 113567121A CN 202110997624 A CN202110997624 A CN 202110997624A CN 113567121 A CN113567121 A CN 113567121A
- Authority
- CN
- China
- Prior art keywords
- bearing
- loading
- test
- unit
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 104
- 230000005540 biological transmission Effects 0.000 claims description 37
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a helicopter engine input end shafting bearing test loading device, which is characterized by comprising the following components: an input power unit; the bearing mounting unit is connected with the output end of the input power unit; the loading unit is arranged above the output end of the input power unit and is in contact with the bearing mounting unit; the input power unit drives a first test bearing arranged on the bearing mounting unit to rotate; the loading unit loads the rotating first test bearing and tests the performance parameters of the first test bearing; the loading unit, the input power unit and the loading block which is arranged in a conical shape are mutually vertical to each other, and are matched with the conical loading part, so that the bearing to be tested is loaded at the same time, the axial force and the radial force are provided at the same time, the force is controllable, and the accuracy of the parameters of the bearing to be tested is improved.
Description
Technical Field
The invention relates to the technical field of bearing life tests, in particular to a loading device for a test of a shafting bearing at the input end of a helicopter engine.
Background
The input end of the helicopter engine rotates at a high speed to provide power for the propeller, wherein a bearing of an input end shaft system plays a crucial role in the rotation of the input shaft, the service life of the bearing determines the safety coefficient of the helicopter, the conventional fatigue life test equipment has single test performance parameter, the service life of the test bearing cannot be accurately and comprehensively evaluated, and the data is excessively conservative, so that great waste is caused.
Chinese patent CN 205981688U discloses a joint bearing life testing machine, which relates to a bearing testing machine, comprising an operation table and a testing main body part arranged on the operation table, wherein the testing main body part comprises a testing main shaft, a bearing fixture, a load loading device, a torque sensor and a transmission shaft, two ends of the testing main shaft are respectively rotatably supported by a left supporting component and a right supporting component, the transmission shaft is connected with one end of the testing main shaft through the torque sensor, the other end of the testing main shaft is provided with an angle encoder, the testing bearing is arranged in the bearing fixture, an inner ring of the testing bearing is fixed on the testing main shaft, two end faces of the inner ring of the testing bearing are respectively clamped between the left supporting component and the right supporting component through a left lantern ring and a right lantern ring which are sleeved on the testing main shaft, the transmission shaft is driven by a crank rocker mechanism and drives the testing bearing to rotate and swing in a reciprocating way through the testing main shaft, the load loading device applies radial load to the test bearing through the bearing clamp. The utility model discloses can high-efficiently detect joint bearing's life-span, assess joint bearing's reliability.
However, in the technical scheme, only radial loading is realized, and axial loading cannot be realized.
Chinese patent CN 205280360U discloses a bearing testing machine, which comprises a testing shaft for the axis of the tested bearing to extend along the left-right direction, a bearing seat and an axial loading device arranged on the left side of the testing shaft, wherein the axial loading device is provided with an axial loading input shaft capable of outputting left-right reciprocating motion, and the power output end of the axial loading input shaft is in transmission connection with the bearing seat or the testing shaft to apply axial loading to the tested bearing. Realized can applying the loading left in the axial direction to being surveyed the bearing, also can apply the loading that the axial direction went up right to being surveyed the bearing, and does not rely on the spring to apply the ascending unidirectional force of axial direction to being surveyed the bearing among the prior art, the utility model discloses the actual atress operating mode of simulation bearing that can be more true, accurate effectual carries out life-span detection test to being surveyed the bearing.
However, the scheme only realizes axial loading, and cannot simultaneously carry out axial and radial loading on the test bearing so as to meet test conditions of different working conditions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a loading device for a test of a shafting bearing at the input end of a helicopter engine, which realizes the simultaneous loading of a bearing to be tested and provides axial force and radial force simultaneously through the action of a loading unit, an input power unit and a loading block which are vertically arranged and matched with a conical loading part, and the force is controllable in size, thereby improving the authenticity, accuracy and comprehensiveness of the parameters of the bearing to be tested.
In order to achieve the purpose, the invention provides the following technical scheme:
a shafting bearing test loading device at the input end of a helicopter engine,
it is characterized by comprising:
an input power unit;
the bearing mounting unit is connected with the output end of the input power unit; and
the loading unit is arranged above the output end of the input power unit and is in contact with the bearing mounting unit;
the input power unit drives a first test bearing arranged on the bearing mounting unit to rotate;
the loading unit loads the rotating first test bearing and tests the performance parameters of the first test bearing;
the bearing mounting unit includes:
a drive shaft;
the transmission shaft is arranged in a hollow mode.
As a modification, the axis of the loading unit and the axis of the input power unit are arranged perpendicular to each other.
As an improvement, the bearing mounting unit further includes:
an input bearing seat;
one end of the transmission shaft is connected with the output end of the input power unit, and the transmission shaft is rotationally linked with the input bearing seat through a first test bearing.
As an improvement, one end of the transmission shaft is provided with a conical loading part; one side of the conical loading part is rotatably connected with the second test bearing.
As an improvement, the loading unit comprises:
the loading power unit is connected with the output end of the loading power unit through a loading head; and
the loading block is sleeved on the transmission shaft and is matched with the conical loading part, and the output end of the loading power unit acts on the top end of the loading block.
As a refinement, the centre line of the loading block and the centre line of the conical loading part are arranged in a superposition manner.
As an improvement, the loading unit further comprises:
the isolation pad is arranged on one side of the loading block.
As an improvement, the bearing mounting unit further comprises a bearing outer bushing arranged on the input bearing seat; the inner diameter of the bearing outer bushing is matched with that of the first test bearing, and the outer diameter of the bearing outer bushing is matched with that of the input bearing seat.
As an improvement, the transmission shaft is connected with the input power unit through a quincuncial elastic coupling.
As an improvement, a plurality of oil grooves are formed in the positions, corresponding to the first test bearings, on the outer diameter of the transmission shaft.
The invention has the beneficial effects that:
(1) the loading unit, the input power unit and the loading block which is arranged in a conical shape are matched with the conical loading part, so that the first test bearing and the second test bearing can simultaneously load axial force and radial force, the controllability of the stress of the test bearings is improved, and the accuracy and the authenticity of test parameters of the test bearings and the comprehensiveness of data are improved;
(2) according to the invention, through the arrangement of the two groups of test bearings arranged on the two sides of the conical loading part, the performance tests of the two groups of test bearings are completed simultaneously, so that the test efficiency is improved, and the stress working conditions of the test bearings are more matched with the actual working conditions;
(3) according to the invention, the bearing outer bushing arranged in the bearing seat is used for avoiding the abrasion of the bearing seat caused by long-term test due to the contact between the test bearing and the bearing seat, so that the basic equipment parameters of different batches of test bearings are basically the same, and the accuracy and the authenticity of the test parameters of the test bearing are improved;
(4) the invention ensures the stable supply of the lubricating medium in the experimental process of the test bearing through the oil groove which is arranged on the outer diameter of the transmission shaft and matched with the position of the raceway of the corresponding test bearing and the channel which is arranged on the inner ring of the test bearing and used for the flowing of the lubricating medium, and solves the problem of the service life reduction of the bearing caused by the lack of the lubricating medium in the experimental process of the test bearing;
(5) according to the invention, the transmission shaft is arranged in a hollow manner, the inner contour is matched with the outer contour, the eccentric vibration caused by self-weight rotation in the rotation process of the transmission shaft is reduced, the variable of the experimental process is reduced, and the accuracy and pertinence of data acquisition in the experimental process are improved.
In conclusion, the invention has the advantages of high test precision, convenient installation, controllable test parameters, closer approach to the actual working condition and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a bearing mounting unit according to the present invention;
FIG. 3 is an enlarged partial view of coating 2 of the present invention at location A;
FIG. 4 is a schematic diagram of a loading block structure according to the present invention;
FIG. 5 is a schematic structural view of a loading head according to the present invention;
FIG. 6 is a schematic view of a transmission shaft according to the present invention;
FIG. 7 is a schematic view of the inner ring structure of the deep groove ball bearing of the present invention;
FIG. 8 is a schematic view of the inner ring structure of the cylindrical roller bearing of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example one
As shown in fig. 1, a helicopter engine input end shafting bearing test loading device includes: a housing 1; further comprising:
the input power unit 2 is arranged on one side of the shell 1; the input power unit 2 adopts an electric spindle;
the bearing mounting unit 3 is connected with the output end of the input power unit 2 and is arranged on the shell 1; and
the loading unit 4 is arranged above the output end of the input power unit 2 and is in contact with the bearing mounting unit 3;
the input power unit 2 drives a first test bearing 100 mounted on the bearing mounting unit 3 to rotate;
the loading unit 4 loads the rotating bearing and tests the performance parameters of the first test bearing 100;
it should be noted that the first test bearing 100 includes a set of bearings, one of which is a deep groove ball bearing 111, and the other of which is a cylindrical roller bearing 112.
As a modification, as shown in fig. 1, the axis of the loading unit 4 and the axis of the input power unit 2 are arranged perpendicular to each other;
it should be noted that, the loading unit and the input power unit which are arranged perpendicular to each other are matched with the loading part which is arranged in a conical shape, so that the acting force applied to the test bearing is more stable, the force applied is easier to control, and the accuracy of test data is improved.
In this embodiment, as shown in fig. 2, the bearing mounting unit 3 includes:
an input bearing seat 31, wherein the input bearing seat 31 penetrates through the side wall of the shell 1 and is installed on the shell 1, and the inner diameter of the input bearing seat 31 is used for installing a first test bearing 100; and
one end of the transmission shaft 32 is connected with the output end of the input power unit 2, and the transmission shaft 32 is rotationally linked with the input bearing seat 31 through a first test bearing 100; the other end of the transmission shaft 32 is provided with a tapered loading portion 322.
As shown in fig. 1, a mounting plate 11 for mounting a second test bearing 200 is arranged in the housing 1, and the other end of the transmission shaft 32 is rotatably connected with the second test bearing 200;
a space for accommodating the loading portion is formed between the mounting plate 11 and the inner wall of the housing 1, and the loading portion is loaded in the space.
As a modification, as shown in fig. 1 and 5, the loading unit 4 includes:
the loading power unit 41 is arranged on the shell 1, and the output end of the loading power unit 41 is connected with a loading head 411; and
the loading block 42 is sleeved on the transmission shaft 32 and is matched with the conical loading part 322, and the output end of the loading power unit 41 acts on the top end of the loading block 42;
it should be noted that one end of the loading head 411 is connected to the output end of the loading power unit 41 through a threaded connection, and the other end thereof is provided with a spherical loading contact head 412;
the loading power unit 41 is preferably driven by a hydraulic oil cylinder;
the central line of the loading block 42 is coincided with the central line of the conical loading part 322, the center of the loading head 411 is coincided with the center of the loading block 42, and the force vertically acting on the upper end part of the loading block 42 is uniformly and stably transmitted to the transmission shaft 32, so that the stress stability of the bearing to be tested is ensured, and the accuracy of the test parameters is improved.
As shown in FIG. 5, the loading block 42 has a square configuration with a tapered internal bore that mates with the tapered loading portion 322.
Further, as shown in fig. 1, the loading unit 4 further includes:
the isolation pad 43 is arranged between the loading block 42 and the mounting plate 11 and used for isolating and supporting the loading block 42, so that the loading block 42 moves to one side after being stressed, and meanwhile, the phenomenon that the mounting plate 11 is abraded after being stressed to influence the service life of equipment is avoided; the loading block 42 is preferably made of polytetrafluoroethylene;
it should be noted that, the output force of the loading power unit 41 vertically acts on the loading block 42 through the loading head 411, and the action of the conical loading portion 322 and the spacer 43, which are arranged in a conical manner, is utilized to make the transmission shaft 32 receive the radial force and the axial force, and further feed back the radial force and the axial force to the first test bearing 100 and the second test bearing 200, and simultaneously perform axial and radial loading on the bearings, thereby completing the performance test of the two sets of bearings.
In this embodiment, as shown in fig. 2, the bearing mounting unit 3 further includes a bearing outer bushing 33 provided on the input bearing housing 31; the inner diameter of the bearing outer bushing 33 is matched with that of the first test bearing 100, and the outer diameter of the bearing outer bushing 33 is matched with that of the input bearing seat 31;
it should be noted that the hardness of the bearing outer bushing 33 is less than that of the input bearing seat 31, and the hardness of the bearing outer bushing 33 is matched with that of the bearing to be tested, so as to reduce the abrasion of the input bearing seat 31 during the test;
further, the setting of bearing outer bush 33 has reduced the wearing and tearing of input bearing frame 31, improves the life of input bearing frame 31, carries out quick replacement according to the degree of wear of bearing outer bush 33, and the precision of bearing frame is approximate when guaranteeing the installation of every batch of experimental bearing, utilizes the bearing mount pad of high accuracy to guarantee the data authenticity of experimental at every turn, improves the data accuracy when experimental bearing is experimental simultaneously.
Further, as shown in fig. 1, the transmission shaft 32 is connected with the input power unit 2 through a quincunx elastic coupling 34;
it should be noted that, when the transmission shaft 32 is forced to move to one side when the transmission shaft 32 is loaded with force, the quincunx elastic coupling 34 ensures the stable connection between the transmission shaft 32 and the input power unit 2 and does not affect the force of the transmission shaft 32.
Example two
As shown in fig. 2, 6-8, wherein the same or corresponding components as in the first embodiment are designated by the same reference numerals as in the first embodiment, only the differences from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:
in addition, as shown in fig. 3 and 6, a plurality of oil grooves 321 are arranged on the outer diameter of the transmission shaft 32 at positions corresponding to the first test bearing 100;
it should be noted that the inner ring of the first test bearing 100 is provided with a lubricating medium flow passage 102, and the oil groove 321 is communicated with the lubricating medium flow passage 102;
as shown in fig. 7 and 8, the channel 102 on the inner ring of the deep groove ball bearing 111 is opened on the end surface of the inner ring of the deep groove ball bearing 111, and the shape of the channel is a semicircular groove;
the channel 102 on the inner ring of the cylindrical roller bearing 112 is obliquely opened and passes through the oil groove of the inner ring of the channel 102, and the lubricating oil enters the oil groove and the raceway along the channel 102 for lubrication.
It should be noted that the oil groove 321 is used for storing a lubricating medium, and ensures that the lubricating medium enters the bearing raceway through the lubricating medium flow channel 102 arranged on the bearing inner ring when the test bearing rotates at a high speed, so as to lubricate the bearing roller, and reduce the influence of the lubricating medium on the test data in the rotation process of the bearing.
EXAMPLE III
As shown in fig. 6, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The third embodiment is different from the first embodiment in that:
further, as shown in fig. 6, the transmission shaft 32 is hollow;
it should be noted that, the inner diameter shape of the transmission shaft 32 matches with the outer diameter shape, so as to reduce the vibration caused by the self weight of the transmission shaft 32 during the high-speed rotation process, which affects the test result.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A shafting bearing test loading device at the input end of a helicopter engine,
it is characterized by comprising:
an input power unit (2);
the bearing mounting unit (3), the bearing mounting unit (3) is connected with the output end of the input power unit (2); and
the loading unit (4), the said loading unit (4) locates above the carry-out terminal of the said input power unit (2) and contacts with the said bearing installation unit (3) and sets up;
the input power unit (2) drives a first test bearing (100) arranged on the bearing mounting unit (3) to rotate;
the loading unit (4) loads the rotating first test bearing (100) and tests the performance parameters of the first test bearing (100);
the bearing mounting unit (3) includes:
a drive shaft (32);
the transmission shaft (32) is arranged in a hollow mode.
2. The helicopter engine input shafting bearing test loading device according to claim 1, wherein the axis of said loading unit (4) and the axis of said input power unit (2) are arranged perpendicular to each other.
3. The helicopter engine input shafting bearing test loading device of claim 1, wherein said bearing mounting unit (3) further comprises:
an input bearing seat (31);
one end of the transmission shaft (32) is connected with the output end of the input power unit (2), and the transmission shaft (32) is rotationally connected with the input bearing seat (31) through a first test bearing (100).
4. The helicopter engine input shafting bearing test loading device according to claim 3, wherein one end of said transmission shaft (32) is provided with a conical loading portion (322); one side of the conical loading part (322) is rotationally connected with the second test bearing (200).
5. A helicopter engine input shafting bearing test loading device according to claim 4, characterized in that said loading unit (4) comprises:
the loading device comprises a loading power unit (41), wherein the output end of the loading power unit (41) is connected with a loading head (411); and
the loading block (42) is sleeved on the transmission shaft (32) and is matched with the conical loading part (322), and the output end of the loading power unit (41) acts on the top end of the loading block (42).
6. The helicopter engine input shafting bearing test loading device of claim 5, wherein the center line of said loading block (42) is coincident with the center line of said conical loading portion (322).
7. The helicopter engine input shafting bearing test loading device according to claim 6, wherein said loading unit (4) further comprises:
an isolation pad (43), wherein the isolation pad (43) is arranged on one side of the loading block (42).
8. A helicopter engine input shafting bearing test loading apparatus according to claim 3, wherein said bearing mounting unit (3) further comprises a bearing outer bushing (33) provided to said input bearing housing (31); the inner diameter of the bearing outer bushing (33) is matched with that of the first test bearing (100), and the outer diameter of the bearing outer bushing (33) is matched with that of the input bearing seat (31).
9. The helicopter engine input shafting bearing test loading device of claim 3, wherein said transmission shaft (32) is connected with said input power unit (2) through a torx coupling (34).
10. The helicopter engine input shafting bearing test loading device of claim 3, wherein said drive shaft (32) has a plurality of oil grooves (321) on the outer diameter thereof at the positions corresponding to the first test bearings (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997624.5A CN113567121A (en) | 2021-08-27 | 2021-08-27 | Helicopter engine input end shafting bearing test loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997624.5A CN113567121A (en) | 2021-08-27 | 2021-08-27 | Helicopter engine input end shafting bearing test loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113567121A true CN113567121A (en) | 2021-10-29 |
Family
ID=78172940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110997624.5A Pending CN113567121A (en) | 2021-08-27 | 2021-08-27 | Helicopter engine input end shafting bearing test loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113567121A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2876753Y (en) * | 2006-03-17 | 2007-03-07 | 燕山大学 | Fatique-tester for vertical hinge bearing of rotary swing of helicopter |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN104931216A (en) * | 2015-05-13 | 2015-09-23 | 天津大学 | Space pendulum shaft radial alternate load loading method |
| CN206095632U (en) * | 2016-07-22 | 2017-04-12 | 湖南科技大学 | Lubricated and load test platform of biserial deep groove ball bearing is supported in transmission |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
| CN107167320A (en) * | 2017-07-07 | 2017-09-15 | 清研检测（天津）有限公司 | A kind of multifunction bearing intelligent lubricating experimental rig |
| CN108318250A (en) * | 2018-05-03 | 2018-07-24 | 河南科技大学 | A kind of comprehensive test machine |
| CN110987429A (en) * | 2019-12-09 | 2020-04-10 | 西安工业大学 | Low-speed helicopter bearing test device |
| CN112834219A (en) * | 2021-04-07 | 2021-05-25 | 中浙高铁轴承有限公司 | Loading tool assembly for bearing tester and method for loading test bearing |
| CN112924174A (en) * | 2021-04-07 | 2021-06-08 | 中浙高铁轴承有限公司 | Routine testing machine for bearing of railway axle box and routine testing method for bearing |
| CN215811625U (en) * | 2021-08-27 | 2022-02-11 | 中浙高铁轴承有限公司 | Helicopter engine input end shafting bearing test loading device |
-
2021
- 2021-08-27 CN CN202110997624.5A patent/CN113567121A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2876753Y (en) * | 2006-03-17 | 2007-03-07 | 燕山大学 | Fatique-tester for vertical hinge bearing of rotary swing of helicopter |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN104931216A (en) * | 2015-05-13 | 2015-09-23 | 天津大学 | Space pendulum shaft radial alternate load loading method |
| CN206095632U (en) * | 2016-07-22 | 2017-04-12 | 湖南科技大学 | Lubricated and load test platform of biserial deep groove ball bearing is supported in transmission |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
| CN107167320A (en) * | 2017-07-07 | 2017-09-15 | 清研检测（天津）有限公司 | A kind of multifunction bearing intelligent lubricating experimental rig |
| CN108318250A (en) * | 2018-05-03 | 2018-07-24 | 河南科技大学 | A kind of comprehensive test machine |
| CN110987429A (en) * | 2019-12-09 | 2020-04-10 | 西安工业大学 | Low-speed helicopter bearing test device |
| CN112834219A (en) * | 2021-04-07 | 2021-05-25 | 中浙高铁轴承有限公司 | Loading tool assembly for bearing tester and method for loading test bearing |
| CN112924174A (en) * | 2021-04-07 | 2021-06-08 | 中浙高铁轴承有限公司 | Routine testing machine for bearing of railway axle box and routine testing method for bearing |
| CN215811625U (en) * | 2021-08-27 | 2022-02-11 | 中浙高铁轴承有限公司 | Helicopter engine input end shafting bearing test loading device |
Non-Patent Citations (1)
| Title |
|---|
| 王洪利;: "铁路轴承试验机", 哈尔滨轴承, no. 02 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102866006B (en) | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system | |
| CN109026650B (en) | Axial plunger pump swash plate-sliding shoe friction pair abrasion testing device and testing method thereof | |
| US10048165B2 (en) | Two-directional radial load and misalignment testing device | |
| CN109357871B (en) | Engine connecting rod small-end bearing examination test bed and test system | |
| CN215811625U (en) | Helicopter engine input end shafting bearing test loading device | |
| CN213632532U (en) | Main shaft dynamic balance detection device | |
| CN111504642B (en) | Bearing experiment table capable of applying complex load | |
| CN109855871B (en) | Needle bearing test equipment | |
| CN108051210A (en) | Lead screw transmission loads the rolling bearing fatigue life experimental rig of alternating load | |
| CN208091696U (en) | The rolling bearing fatigue life pilot system of radially alternating load can be applied | |
| CN113567121A (en) | Helicopter engine input end shafting bearing test loading device | |
| CN114235400A (en) | Wind-powered electricity generation slide bearing capability test device | |
| CN106706319B (en) | Cylindrical roller bearing birotor testing machine shafting structure | |
| CN113551910A (en) | Helicopter rotor system matched bearing testing machine and method | |
| CN110987429B (en) | Low-speed helicopter bearing test device | |
| CN102312920A (en) | Tilting-pad bearing | |
| CN209894482U (en) | Joint bearing low-temperature wear test device with combined clamp assembly | |
| CN109357870B (en) | Radial air bearing performance test machine | |
| CN101804471B (en) | Special machine tool and method for boring double-support hole of spinning spindle elastic pipe combining member | |
| CN208091695U (en) | Lead screw transmission loads the rolling bearing fatigue life experimental rig of radially alternating load | |
| US2621086A (en) | Hydrostatically lubricated spherical bearing | |
| CN207866500U (en) | The rolling bearing fatigue life pilot system of alternating load can be loaded | |
| CN207866521U (en) | The rolling bearing fatigue life that rack pinion loads alternating load tests system | |
| CN114001957A (en) | Vertical bearing testing machine | |
| CN216589544U (en) | Crankshaft assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |