CN104568443B - Space rolling bearing comprehensive performance experiment device - Google Patents
Space rolling bearing comprehensive performance experiment device Download PDFInfo
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- CN104568443B CN104568443B CN201510041974.9A CN201510041974A CN104568443B CN 104568443 B CN104568443 B CN 104568443B CN 201510041974 A CN201510041974 A CN 201510041974A CN 104568443 B CN104568443 B CN 104568443B
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Abstract
The invention discloses a space rolling bearing comprehensive performance experiment device, relates to an experiment device and provides an experiment device capable of accurately measuring axial and redial united loads of a space rolling bearing and basic data including friction moment, bearing temperature rise, vibration and the like under different rotation speed working conditions. The space rolling bearing comprehensive performance experiment device can simultaneously conduct axial force and radial force accurate load on a measured bearing through an axial loading device and a radial loading device. A three-axis acceleration sensor is used for measuring radial, axial and peripheral vibration situations of the measured bearing. A temperature sensor is used for measuring the temperature rise situation of the measured bearing. A pressure sensor is used for measuring the friction moment of the measured bearing. An annular pressure sensor is used for measuring axial force borne by the measured bearing. Weights are used for marking radial force borne by the measured bearing. The space rolling bearing comprehensive performance experiment device can evaluate the comprehensive performance of the space rolling bearing and provide key scientific technical basis and test platform support for development of high-end bearings in the aerospace field of our country.
Description
Technical field
The present invention relates to the combination property of rolling bearing is examined under a kind of experimental facilities, more particularly to a kind of space condition
Detection experiment apparatus.
Background technology
Bearing is that aerospace industry is supporting and the necessary key component of maintenance, the development and technology with aerospace industry
Progress is closely related.The quality of the technical merit, performance and quality of bearing directly affects the aviations such as aircraft, rocket, satellite boat
The function life-span and reliability of its aircraft.Space Rolling Bearing compared with civilian bearing, in precision, speed, sensitivity, longevity
The aspects such as life, reliability, temperature, vacuum, burn into radiation have very harsh requirement.To meet these requirements, in bearing
The everyways such as design, selection, processing, detection, test, lubrication, use, maintenance must take corresponding technical measures.Therefore,
A kind of Space Rolling Bearing comprehensive characteristic test platform is invented, the dynamic military service behavior of Space Rolling Bearing is grasped exactly, built
Footstep bearing combination property database, the technical merit to improving Chinese Space rolling bearing has important scientific meaning and engineering reality
With value.
It is not perfect enough for rolling bearing all-round property testing means in prior art, without can truly complete simulation it is empty
Between rolling bearing actual condition experimental provision, particularly without considering axially and radially to load simultaneously, especially cannot be accurate
Ground measurement rotating speed and load to the moment of friction of Space Rolling Bearing, temperature rise, vibration impact relation, so as to can not veritably slap
Hold the rules such as Space Rolling Bearing failure mechanism, tribological property.
The content of the invention
The technical problem to be solved in the present invention is:A kind of Space Rolling Bearing comprehensive characteristic test device, the experiment are provided
Device can accurately measurement space rolling bearing moment of friction, axle under axially and radially connected load and different rotating speeds operating mode
The basic datas such as temperature rise, vibration are held, is exploitation China aerospace field in order to the combination property of evaluation space rolling bearing
High end bearing provides crucial science and technology foundation and test platform is supported.
Technical scheme for the employing that solves the above problems is:Space Rolling Bearing comprehensive characteristic test device sets including inside
It is equipped with the space-environment simulator and the Space Rolling Bearing in space-environment simulator of experimental stand mounting platform
Experimental stand;Space Rolling Bearing experimental stand includes detected space rolling bearing, loading axis bearing, the bearing collar, transmission dress
Put, support meanss, axial loading device, radial loading device and detection means;
Transmission device includes vacuum high/low temperature motor and experiment main shaft, and vacuum high/low temperature motor can drive experiment main shaft rotation
Turn;
Support meanss include motor erection support, torque rotary speed sensor erection support and main shaft support device;Motor is pacified
Dress bearing is arranged on experimental stand mounting platform and supports vacuum high/low temperature motor;Experiment main shaft two ends are respectively by main shaft
Support arrangement is supported, and main shaft support device includes spring bearing, spring bearing erection support and supporting bearing base end cap, spring bearing
Inner ring be arranged on experiment main shaft on, spring bearing outer ring be arranged on supporting bearing erection support dead eye in, spring bearing
Seat end cap is connected by trip bolt with supporting bearing erection support, the shaft shoulder common axle of supporting bearing base end cap and experiment main shaft
Hold to position support shaft, spring bearing erection support is arranged on experimental stand mounting platform;
Detected space rolling bearing is arranged on the part Experiment main shaft between two pieces main shaft support device, detected space rolling
Dynamic bearing quantity is two pieces and face-to-face or back-to-back installation;Bearing holder (housing, cover) ring set is mounted on experiment main shaft and is located at the tested sky of two pieces
Between between rolling bearing;
Load bearings cover for seat is mounted on detected space housing washer, and loading axis bearing one end is provided with positioning step,
The other end connects axial loading device, and loading axis bearing outer surface connection radial loading device tests the shaft shoulder, the positioning table of main shaft
Rank and the common axially position detected space rolling bearing of axial loading device;
Axial loading device includes loading axis bearing end cap, spring and the back-up ring axially set gradually along experiment main shaft;Plus
Carry bearing cover to be connected with loading axis bearing by the load screw of six circumference uniform distributions and compression spring, back-up ring is located at spring
And detected space rolling bearing between;
Radial loading device includes radial loaded disk, loading counterweight and hook, and hook is connected with loading axis bearing, radially adds
Load plate is hung on hook, and loading counterweight is put in radial loaded disk;
Detection means includes torque rotary speed sensor, 3-axis acceleration sensor, annular pressure sensor, temperature sensor
With moment of friction detection means;Torque rotary speed sensor is arranged between vacuum high/low temperature motor and experiment main shaft and by elasticity
Shaft coupling is connected with vacuum high/low temperature motor and experiment main shaft, and torque rotary speed sensor erection support supports torque rotary speed sensing
Device;3-axis acceleration sensor is connected with load bearings;Annular pressure sensor be located at detected space rolling bearing and back-up ring it
Between;Temperature sensor is connected and near detected space rolling bearing with loading axis bearing;Moment of friction detection means includes power transmission
Bar, pressure sensor and pressure sensor erection support, transmission rod is connected with loading axis bearing, pressure sensor erection support peace
It is mounted on experimental stand mounting platform, pressure sensor is connected with pressure sensor erection support and contacts with transmission rod.
It is further:Spring bearing is bearing with solid lubricant
It is further:Vacuum high/low temperature motor, torque rotary speed sensor, 3-axis acceleration sensor, annular pressure are passed
Sensor, temperature sensor and pressure sensor are connected by the aviation socket being arranged on space-environment simulator with extraneous
Connect.
The invention has the beneficial effects as follows:1st, Space Rolling Bearing comprehensive characteristic test device of the invention, by axially adding
Carry and put and radial loading device, simultaneously axial force can be implemented to measured bearing and radial load is accurately loaded.Axial force loading is logical
Cross and tighten load screw realization, axial force passes sequentially through back-up ring and annular pressure sensor passes to a detected space axis of rolling
Hold, while axial force is transferred to another detected space rolling bearing by the positioning step in loading axis bearing, spring is also made
For buffer cell, axial loading device can realize loading precise and stable to measured bearing.By being put into standard in radial loaded disk
Counterweight, realizes the precise and stable loading of radial load;Load mode is not only simple in structure, easy to operate, and accurately and reliably.
2nd, torque rotary speed sensor is used to measure measured bearing rotating speed and input torque;3-axis acceleration sensor is used to survey
Amount measured bearing radially, axially, rotational vibration situation;Temperature sensor is used to measure measured bearing temperature rise situation;Pressure sensing
Device is used to measure the moment of friction of measured bearing;Annular pressure sensor is used to measure axial force suffered by measured bearing;Counterweight is used
In sign measured bearing force in radial.Therefore this experimental provision accurately measurement space rolling bearing can axially and radially join
The basic data such as moment of friction, bearing temperature rise, vibration under load and different rotating speeds operating mode is closed, in order to the evaluation space axis of rolling
The combination property held, to develop the high end bearing of China's aerospace field crucial science and technology foundation and test platform are provided
Support.
Description of the drawings
Fig. 1 is the front view of Space Rolling Bearing comprehensive characteristic test device;
Fig. 2 is partial enlarged drawing of the Space Rolling Bearing comprehensive characteristic test device at loading axis bearing;
Fig. 3 is partial side view of the Space Rolling Bearing comprehensive characteristic test device at loading axis bearing;
It is labeled as in figure:Space-environment simulator 1, vacuum high/low temperature motor 2, yielding coupling 3, torque rotary speed sensing
Device 4, aviation socket 5, supporting bearing base end cap 6, trip bolt 7, spring bearing 8, loading axis bearing 9,3-axis acceleration sensing
Device 10, detected space rolling bearing 11, the bearing collar 12, annular pressure sensor 13, back-up ring 14, spring 15, load screw 16,
Loading axis bearing end cap 17, experiment main shaft 18, experimental stand mounting platform 19, temperature sensor 20, spring bearing erection support
21st, torque rotary speed sensor erection support 22, support meanss includes motor erection support 23, pressure sensor 24, pressure sensing
Device erection support 25, loading counterweight 26, radial loaded disk 27, transmission rod 28.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is further described.
As shown in Figure 1 to Figure 3, Space Rolling Bearing comprehensive characteristic test device includes being internally provided with experimental stand installation
The space-environment simulator 1 of platform 19 and the Space Rolling Bearing experimental stand in space-environment simulator 1;Space
Rolling bearing experimental stand includes detected space rolling bearing 11, loading axis bearing 9, the bearing collar 12, transmission device, support dress
Put, axial loading device, radial loading device and detection means;
Transmission device includes vacuum high/low temperature motor 2 and experiment main shaft 18, and vacuum high/low temperature motor 2 can drive experiment master
Axle 18 rotates;
Support meanss include motor erection support 23, torque rotary speed sensor erection support 22 and main shaft support device;Electricity
Machine erection support 23 is arranged on experimental stand mounting platform 19 and supports vacuum high/low temperature motor 2;Experiment main shaft 18 two ends point
Do not supported by main shaft support device, main shaft support device includes spring bearing 8, spring bearing erection support 21 and spring bearing
Seat end cap 6, the inner ring of spring bearing 8 is arranged on experiment main shaft 18, and the outer ring of spring bearing 8 is arranged on supporting bearing erection support
In 21 dead eye, supporting bearing base end cap 6 is connected by trip bolt 7 with supporting bearing erection support 21, supporting bearing base
The common axial direction position support shaft of the shaft shoulder of end cap 6 and experiment main shaft 18 holds 8, and spring bearing erection support 21 is arranged on experimental stand
On mounting platform 19;
Detected space rolling bearing 11 is arranged on the part Experiment main shaft 18 between two pieces main shaft support device, tested sky
Between the quantity of rolling bearing 11 be two pieces and face-to-face or back-to-back installation;The bearing collar 12 is sleeved on experiment main shaft 18 and is located at
Between two pieces detected space rolling bearing 11;
Loading axis bearing 9 is sleeved on the outer ring of detected space rolling bearing 11, and the one end of loading axis bearing 9 is provided with positioning table
Rank, other end connection axial loading device, the outer surface of loading axis bearing 9 connection radial loading device, the shaft shoulder of experiment main shaft 18,
Positioning step and the common axially position detected space rolling bearing 11 of axial loading device;
Axial loading device includes loading axis bearing end cap 17, spring 15 and the gear axially set gradually along experiment main shaft 18
Circle 14;Loading axis bearing end cap 17 is connected and compression spring by the load screw 16 of six circumference uniform distributions with loading axis bearing 9
15, back-up ring 14 is located between spring 15 and detected space rolling bearing 11;
Radial loading device includes radial loaded disk 27, loading counterweight 26 and hook, and hook is connected with loading axis bearing 9,
Radial loaded disk 27 is hung on hook, and loading counterweight 26 is put in radial loaded disk 27;
Detection means includes torque rotary speed sensor 4,3-axis acceleration sensor 10, annular pressure sensor 13, temperature
Sensor 20 and moment of friction detection means;Torque rotary speed sensor 4 be arranged at vacuum high/low temperature motor 2 and experiment main shaft 18 it
Between and by yielding coupling 3 and vacuum high/low temperature motor 2 and test main shaft 18 and be connected, torque rotary speed sensor erection support 22
Support torque rotary speed sensor 4;3-axis acceleration sensor 10 is connected with load bearings 9;Annular pressure sensor 13 is located at quilt
Survey between Space Rolling Bearing 11 and back-up ring 14;Temperature sensor 20 is connected with loading axis bearing 9 and rolls near detected space
Bearing 11;Moment of friction detection means includes transmission rod 28, pressure sensor 24 and pressure sensor erection support 25, transmission rod
28 are connected with loading axis bearing 9, and pressure sensor erection support 25 is arranged on experimental stand mounting platform 19, pressure sensor
24 are connected with pressure sensor erection support 25 and contact with transmission rod 28.
Space-environment simulator 1 is used for space environmental simulation, such as environment of low pressure, low temperature or high temperature.Vacuum is high
Low temperature electric machine 2 is the motor that can be operated under space environment.Because operating under space environment, spring bearing 8 should be solid profit
Plain besring.Vacuum high/low temperature motor 2, torque rotary speed sensor 4,3-axis acceleration sensor 10, annular pressure sensor 13, temperature
Degree sensor 20 and pressure sensor 24 are both needed to transmit data by extraneous power supply or with extraneous, therefore are both needed to be connected with the external world.
In the present invention, vacuum high/low temperature motor 2, torque rotary speed sensor 4,3-axis acceleration sensor 10, annular pressure sensor 13,
Temperature sensor 20 and pressure sensor 24 are connected by the aviation socket 5 being arranged on space-environment simulator 1 with extraneous
Connect.
The Space Rolling Bearing comprehensive characteristic test device of the present invention, by axial loading device and radial loading device,
Simultaneously axial force can be implemented to detected space rolling bearing 11 and radial load is accurately loaded.Axial force is loaded by tightening loading spiral shell
Nail 16 realizes that axial force passes sequentially through back-up ring 14 and annular pressure sensor 13 is transferred to a detected space rolling bearing 11,
Simultaneously axial force is transferred to another detected space rolling bearing 11 by the positioning step in loading axis bearing 9, and spring 15 is also
Used as buffer cell, axial loading device can realize loading precise and stable to measured bearing.By being put in radial loaded disk 27
Standard test weight 26, realizes the precise and stable loading of radial load;Load mode is not only simple in structure, easy to operate, and accurately and reliably.
Torque rotary speed sensor 4 is used to measure the rotating speed of detected space rolling bearing 11 and input torque;3-axis acceleration is passed
Sensor 10 be used for measure detected space rolling bearing 11 radially, axially, rotational vibration situation;Temperature sensor 20 is used to measure quilt
Survey the temperature rise situation of Space Rolling Bearing 11;Pressure sensor 24 is used to measure the moment of friction of detected space rolling bearing 11;Ring
Shape pressure sensor 13 is used to measure axial force suffered by measured bearing;Counterweight 26 is used to indicate measured bearing force in radial.Cause
This this experimental provision can accurately measure detected space rolling bearing 11 in axially and radially connected load and different rotating speeds work
The basic data such as moment of friction, bearing temperature rise, vibration under condition, is exploitation in order to the combination property of evaluation space rolling bearing
The high end bearing of China's aerospace field provides crucial science and technology foundation and test platform is supported.
Pressure sensor 24 measures the mode of the moment of friction of detected space rolling bearing 11:Detected space rolling bearing
11 moment of friction is converted into frictional force, and frictional force is transferred to give transmission rod 28 at pressure sensor 24 by transmission rod 28
The pressure F of pressure sensor 24, pressure sensor 24 measures pressure F, pressure sensor 24 and the center of detected space rolling bearing 11
Can be calculated by formula M=F × l away from the moment of friction for l, Space Rolling Bearing 11.
Claims (3)
1. Space Rolling Bearing comprehensive characteristic test device, it is characterised in that:Including being internally provided with experimental stand mounting platform
(19) space-environment simulator (1) and the Space Rolling Bearing experimental stand in space-environment simulator (1);It is empty
Between rolling bearing experimental stand include detected space rolling bearing (11), loading axis bearing (9), the bearing collar (12), transmission dress
Put, support meanss, axial loading device, radial loading device and detection means;
Transmission device includes vacuum high/low temperature motor (2) and experiment main shaft (18), and vacuum high/low temperature motor (2) can drive experiment
Main shaft (18) rotates;
Support meanss include motor erection support (23), torque rotary speed sensor erection support (22) and main shaft support device;Electricity
Machine erection support (23) is on experimental stand mounting platform (19) and supports vacuum high/low temperature motor (2);Experiment main shaft
(18) two ends are supported respectively by main shaft support device, and main shaft support device includes spring bearing (8), spring bearing erection support
(21) and supporting bearing base end cap (6), the inner ring of spring bearing (8) is arranged in experiment main shaft (18), spring bearing (8) outer ring
In the dead eye of supporting bearing erection support (21), supporting bearing base end cap (6) is by trip bolt (7) and bearing axle
The common axial direction position support shaft of the shaft shoulder for holding erection support (21) connection, supporting bearing base end cap (6) and experiment main shaft (18) is held
(8), spring bearing erection support (21) is on experimental stand mounting platform (19);
Detected space rolling bearing (11) is arranged on the part Experiment main shaft (18) between two pieces main shaft support device, tested sky
Between rolling bearing (11) quantity be two pieces and face-to-face or back-to-back installation;The bearing collar (12) is sleeved in experiment main shaft (18)
And between two pieces detected space rolling bearing (11);
Loading axis bearing (9) is vacantly arranged, and loading axis bearing (9) is sleeved on detected space rolling bearing (11) outer ring, is loaded
Bearing block (9) one end is provided with positioning step, other end connection axial loading device, loading axis bearing (9) outer surface connection footpath
To charger, the common axially position detected space of the shaft shoulder, positioning step and axial loading device for testing main shaft (18) is rolled
Bearing (11);
Loading axis bearing end cap (17) that axial loading device includes axially being set gradually along experiment main shaft (18), spring (15) and
Back-up ring (14);Loading axis bearing end cap (17) is connected by the load screw (16) of six circumference uniform distributions with loading axis bearing (9)
And compression spring (15), back-up ring (14) is between spring (15) and detected space rolling bearing (11);
Radial loading device includes radial loaded disk (27), loading counterweight (26) and hook, and hook is with loading axis bearing (9) even
Connect, radial loaded disk (27) is hung on hook, loading counterweight (26) is put in radial loaded disk (27);
Detection means includes torque rotary speed sensor (4), 3-axis acceleration sensor (10), annular pressure sensor (13), temperature
Degree sensor (20) and moment of friction detection means;Torque rotary speed sensor (4) is arranged at vacuum high/low temperature motor (2) and experiment
It is connected with vacuum high/low temperature motor (2) and experiment main shaft (18) between main shaft (18) and by yielding coupling (3), torque rotary speed
Sensor erection support (22) supports torque rotary speed sensor (4);3-axis acceleration sensor (10) and loading axis bearing (9)
Connection;Annular pressure sensor (13) is between detected space rolling bearing (11) and back-up ring (14);Temperature sensor (20)
It is connected with loading axis bearing (9) and near detected space rolling bearing (11);Moment of friction detection means include transmission rod (28),
Pressure sensor (24) and pressure sensor erection support (25), transmission rod (28) is connected with loading axis bearing (9), pressure sensing
Device erection support (25) on experimental stand mounting platform (19), pressure sensor (24) and pressure sensor erection support
(25) connect and contact with transmission rod (28).
2. Space Rolling Bearing comprehensive characteristic test device according to claim 1, it is characterised in that:Spring bearing (8)
For bearing with solid lubricant.
3. Space Rolling Bearing comprehensive characteristic test device according to claim 2, it is characterised in that:Vacuum high/low temperature electricity
Machine (2), torque rotary speed sensor (4), 3-axis acceleration sensor (10), annular pressure sensor (13), temperature sensor
(20) it is connected with the external world by the aviation socket (5) being arranged on space-environment simulator (1) with pressure sensor (24).
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CN201510041974.9A CN104568443B (en) | 2015-01-27 | 2015-01-27 | Space rolling bearing comprehensive performance experiment device |
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CN104568443B true CN104568443B (en) | 2017-05-03 |
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