CN211855841U - Shaft bearing flow friction testing device - Google Patents
Shaft bearing flow friction testing device Download PDFInfo
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- CN211855841U CN211855841U CN202020267994.4U CN202020267994U CN211855841U CN 211855841 U CN211855841 U CN 211855841U CN 202020267994 U CN202020267994 U CN 202020267994U CN 211855841 U CN211855841 U CN 211855841U
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Abstract
The utility model provides a bearing flow friction test device, this test device mainly include control system, loading system, anchor clamps system, actuating system, data acquisition system, current-carrying system, bearing system. The fixture system comprises a bearing fixture and a carbon plate fixture in contact with the selection shaft, wherein the bearing fixture and the carbon plate fixture are made of copper alloy materials, and the arc-shaped carbon plate is adopted in the part in contact with the rotation shaft to realize surface-to-surface contact. The tribology behavior test and research under the current-carrying condition of a plane bearing, a cone bearing, a ball bearing and the like can be realized. The utility model provides a device that the physical and chemical index and the lubricating property of the frictional wear action of bearing and lubricating grease degrade with higher speed under the current-carrying condition to phase provides technical support for motor bearing electrolytic corrosion problem research.
Description
Technical Field
The utility model belongs to the technical field of the bearing friction and wear test, especially, relate to a bearing flow friction test device.
Background
The problem of electric corrosion of a motor bearing is increasingly prominent, and the service life of the motor is seriously influenced. However, the rules of the influence of electrical parameters such as current and voltage on the current-carrying frictional wear of bearings and the performance degradation of greases have been studied less.
Current-carrying frictional wear is the result of the interaction of, and interaction with, mechanical friction pairs, interfacial lubricants, and electrical current. At present, a current-carrying frictional wear test system mainly aims at a track traffic bow-net system, a wheel-rail system, an electric system, a carbon brush-collecting ring system of a motor and the like.
The test device and the method for simulating the current-carrying frictional wear of the rail transit pantograph-catenary have been researched more, and the contact form mainly comprises a ring-block type, a pin-disc type, a line-slide block type, a surface-slide block type and the like. The wheel-rail of the rail transit locomotive can also play a role in backflow during running, so that a student develops a test device for simulating wheel-rail rolling current-carrying friction and wear. The current-carrying friction of the power system is mainly: simulating the friction wear of the high-voltage switch of the electrical system under the current-carrying condition; a method and a device for testing the periodic and sudden friction wear between a plug-in contact point and a conductor of a gas insulated bus and the electrical contact service life of the contact point. The research on current-carrying friction and wear of the carbon brush-collector ring of the motor comprises the following steps: the device aims at the friction wear test device under the current-carrying condition of the carbon brush-collecting ring in the water turbine.
The current research is mostly focused on a current-carrying friction and wear test under a sliding friction condition, a low-current friction and wear test under a safe voltage condition, an electric arc generation mechanism and the like. The working condition characteristics of a motor rolling bearing friction pair cannot be simulated, and the change of physicochemical indexes such as oxidation performance, rheological property, oil film thickness, cone penetration, dropping point and the like and the accelerated degradation of lubricating performance of bearing lubricating grease under a current-carrying condition cannot be realized.
Therefore, the utility model provides a device that the physical and chemical index and the lubricating property of the frictional wear action of bearing and lubricating grease degrade with higher speed under the current-carrying condition to phase provides technical support for motor bearing electrolytic corrosion problem research.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a bearing carries a stream friction testing arrangement to carry out the research device that the physical and chemical index and the lubricating property of bearing wear behavior and lubricating grease accelerated degradation under the current-carrying condition under the hope.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a friction testing device for bearing flow of a shaft comprises a control system, a loading system, a clamp system, a driving system, a data acquisition system, a current-carrying system and a bearing system,
the control system comprises a control cabinet and a computer, wherein the control cabinet is connected with the computer through a control data line;
the loading system comprises a ceramic ball, a weight and a lever,
the fixture system comprises a bearing seat guide, a bearing seat I, a carbon plate fixture, a bearing seat II, a linear bearing, a spring, a guide rod and an insulating plate;
the driving system comprises a heat insulation layer I, a heat insulation layer II, a motor, a connecting shaft and a bearing seat II;
the data acquisition system comprises a voltmeter, a torque sensor, an ammeter, an infrared camera and a temperature sensor;
the current-carrying system comprises an arc-shaped carbon plate and a current rising device;
the bearing system comprises a bearing plane washer I, a ball and a bearing plane washer II;
the weight is placed on a weight tray, the weight tray is hung at the end part of a lever, the lever takes a lever bracket as a fulcrum, the other end of the lever is contacted with a ceramic ball, and the ceramic ball is connected with a fixed ceramic retainer ring; the ceramic ball is connected with a fixed ceramic retainer ring, and the fixed ceramic ball retainer ring is fixed at the bottom of the bearing seat;
the bearing seat I is arranged in the bearing seat guide, the bearing plane gasket I is matched with the bearing seat I, the bearing plane gasket I, the ball and the bearing plane gasket II are sequentially connected from bottom to top, and the bearing plane gasket II is matched with the lower end of the bearing seat II;
the upper end of the bearing seat II is provided with a shaft, the bearing seat II is connected with the heat insulation layer I and the connecting shaft through a coupling I, and the bearing seat II is connected with the arc-shaped carbon plate;
the arc-shaped carbon plate is embedded in the carbon plate clamp, the linear bearing is connected with the spring, the spring is sleeved on the guide rod, and the arc-shaped carbon plate is loaded on the shaft surface of the bearing seat II under the action of the spring;
the guide rod is connected with an insulating plate, the insulating plate is fixed on a fixing plate III, and the fixing plate III is fixed on a fixing plate II;
the connecting shaft and the thermal insulation layer II are connected through a coupling II, the other end of the torque sensor is connected with an output shaft of a motor through a coupling III, the motor is fixed on a fixing plate I, the fixing plate I is connected with the fixing plate II, and the fixing plate II is fixed on an insulation table board;
the current booster switch is connected with an ammeter, and the ammeter is connected with the carbon plate clamp; meanwhile, the current booster is connected with a bearing seat I, the voltmeter is respectively connected with the bearing seat I and the carbon plate clamp, and the infrared camera is fixed on the insulating table board through a fixing plate III and a bolt; the temperature sensor is connected with the bearing seat I, and the ammeter, the voltmeter, the infrared camera and the temperature sensor are respectively connected with the control cabinet through data lines.
Furthermore, the ceramic ball is made of ceramic materials and is fixed at the bottom of the bearing seat I through the fixed ceramic retainer ring, the ceramic ball is in clearance fit with the fixed ceramic retainer ring, the ceramic ball can rotate freely, and no current passes between the bearing seat I and the lever.
Further, the lower end of the bearing seat II is in clearance fit with a bearing plane gasket II; the other end of the bearing seat II is a shaft and is connected with the heat insulation layer I, the coupler I and the connecting shaft, arc-shaped carbon plates are in loading contact with two sides of the shaft end of the bearing seat II, and when the arc-shaped carbon plates are matched with the shaft end of the bearing seat II, the arc-shaped inner diameter is the same as the outer diameter of the shaft.
Further, the bearing seat I, the carbon plate clamp and the bearing seat II are all made of copper alloy materials; the arc-shaped carbon plate is made of carbon material; the lubricating material of the linear bearing is selected from a solid conductive material.
Further, the connecting shaft is made of a ceramic material or a material with a ceramic coating.
Further, the insulating plate may be ceramic, bakelite or engineering plastic.
Further, the current booster can also be a voltage booster.
Furthermore, the bearing plane gasket I, the balls and the bearing plane gasket II of the bearing system can be ball plane bearings, needle plane bearings, cylindrical roller plane bearings, tapered roller bearings or deep groove ball bearings.
Furthermore, the two ends of the connecting shaft are respectively provided with a heat insulation layer I and a heat insulation layer II, and the heat insulation layers are made of EVA heat insulation materials, glass wool heat insulation materials or fiber paper and organic silicon resin heat insulation materials.
Further, the voltmeter and the ammeter are used for monitoring the voltage and current changes loaded between the bearing plane gasket I and the bearing plane gasket II.
Compared with the prior art, a bearing flow friction test device have following advantage:
(1) the utility model provides a device for measuring the friction and wear performance of a bearing under the condition of high current or high voltage; meanwhile, in the testing device, a plane thrust bearing, a conical bearing and the like are mainly adopted, so that the device is convenient to disassemble and assemble, and the failure analysis of bearing materials and lubricating grease in the next step is convenient;
(2) the utility model discloses can load the technique of highest hundred ampere-grade electric current or kilovolt level voltage in the bearing inner and outer lane, can accelerate the electrolytic corrosion and the inefficacy that realize under bearing material and the lubricating grease current-carrying condition, have bearing performance degradation research when axle electric current passes through for the motor bearing to provide technical and theoretical support.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the carbon plate and the fixture thereof according to the present invention;
FIG. 3 is a schematic view of the tapered roller bearing and its mounting and clamping manner;
description of reference numerals:
1-a control cabinet, 2-an ammeter data transmission line, 3-an infrared camera data line, 4-a temperature sensor data line, 5-a bolt I, 6-a ceramic ball, 7-a fixed ceramic ball retainer ring, 8-a bolt II, 9-a bolt III, 10-a weight, 11-a weight tray, 12-a voltmeter data transmission line, 13-a lever, 14-a bearing seat guide, 15-a lever bracket, 16-a copper wire I, 17-a voltmeter, 18-a bearing seat I, 19-a bearing plane gasket I, 20-a ball, 21-a bearing plane gasket II, 22-a copper wire II, 23-an arc carbon plate, 24-a carbon plate clamp, 25-a heat insulation layer I, 26-a coupler I, 27-a coupler II, 28-thermal insulation layer II, 29-torque sensor, 30-bolt IV, 31-fixed plate I, 32-coupler III, 33-bolt V, 34-motor, 35-connecting shaft, 36-bearing seat II, 37-bolt VI, 38-bolt VII, 39-linear bearing, 40-spring, 41-guide rod, 42-insulating plate, 43-bolt VIII, 44-fixed plate II, 45-fixed plate III, 46-copper conductor III, 47-bolt IX, 48-ammeter, 49-infrared camera, 50-fixed plate III, 51-temperature sensor, 52-bolt X, 53-computer, 54-marble table top, 55-control data line, 56-bolt XI, 57-copper conductor IV, 58-copper conductor V, 59-motor control line, 60-current rising device, 61-bearing outer ring, 62-conical bearing and 63-bearing inner ring.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1:
the utility model provides a friction testing arrangement is born to axle load flow, its component system includes control system, loading system, anchor clamps system, actuating system, data acquisition system, current-carrying system, bearing system, and each system mainly includes:
the control system comprises: a control cabinet 1, a computer 53;
loading the system: the device comprises a ceramic ball 6, a fixed ceramic retainer ring 7, a weight 10, a weight tray 11, a lever 13 and a lever bracket 15;
a fixture system: bearing seat guide 14, bearing seat I18, carbon plate clamp 24, bearing seat II36, linear bearing 39, spring 40, guide rod 41 and insulating plate 42;
a driving system: the heat insulation layer I25, the heat insulation layer II28, the motor 34, the connecting shaft 35 and the bearing seat II 36;
a data acquisition system: voltmeter 17, torque sensor 29, ammeter 48, infrared camera 49, and temperature sensor 51;
a current carrying system: an arc-shaped carbon plate 23 and a current riser 60;
a bearing system: bearing plane washer I19, ball 20, bearing plane washer II 21.
The positional relationship among the components in each system is as follows:
the weight 10 is placed on the weight tray 11, the weight tray 11 is hung at the end part of the lever 13, the lever 13 takes the lever bracket 15 as a fulcrum, and the other end of the lever 13 is contacted with the ceramic ball 6;
the ceramic ball 6 is connected with a fixed ceramic retainer 7, the fixed ceramic retainer 7 is fixed at the bottom of a bearing seat I18 through a bolt I5, the bearing seat I18 is arranged in a bearing seat guide 14, a bearing plane washer I19 is matched with the bearing seat I18, a bearing plane washer I19, a ball 20 and a bearing plane washer II21 are sequentially connected from bottom to top, and a bearing plane washer II21 is matched with the lower end of the bearing seat II 36;
the upper end of the bearing seat II36 is a shaft, and is connected with the heat insulation layer I25 and the connecting shaft 35 through a coupler I26, and the bearing seat II36 is connected with the arc-shaped carbon plate 23;
the arc-shaped carbon plate 23 is embedded in the carbon plate clamp 24, the linear bearing 39 is connected with the spring 40, the spring 40 is sleeved on the guide rod 41, and under the action of the spring 40, the arc-shaped carbon plate 23 is loaded on the shaft surface of the bearing seat II 36;
the guide rods 41 are connected with an insulating plate 42, the insulating plate 42 is fixed on a fixing plate III45 through a bolt VIII43, and a fixing plate III45 is fixed on a fixing plate II44 through a bolt IX 47;
the connecting shaft 35, the heat insulation layer II28 and the torque sensor 29 are connected through a coupler II27, the other end of the torque sensor 29 is connected with an output shaft of the motor 34 through a coupler III32, the motor 34 is fixed on a fixing plate I31 through a bolt V33, the fixing plate I31 is connected with a fixing plate II44 through a bolt IV30, and the fixing plate II44 is fixed on the marble table top 54 through a bolt X52;
the current booster 60 is connected with an ammeter 48 through a copper wire IV57, and the ammeter 48 is connected with the carbon plate clamp 24 through a copper wire III 46; meanwhile, the current booster 60 is connected with a bearing seat I18 through a copper wire V58, the voltmeter 17 is respectively connected with a bearing seat I18 and a carbon plate clamp 24 through a copper wire I16 and a copper wire II22, and the infrared camera 49 is fixed on the marble table 54 through a fixing plate III50 and a bolt XI 56; the temperature sensor 51 is connected with the bearing seat I18, the ammeter 48, the voltmeter 17, the infrared camera 49 and the temperature sensor 51 are respectively connected with the control cabinet 1 through an ammeter data transmission line 2, a voltmeter data transmission line 12, an infrared camera data line 3 and a temperature sensor data line 4, and the control cabinet 1 is connected with the computer 53 through a control data line 55.
Preferably, the ceramic balls 6 are ceramic materials, such as Al2O3The ceramic ball 6 is fixed at the bottom of the bearing seat I18 through the fixed ceramic retainer ring 7, and the ceramic ball 6 is in clearance fit with the fixed ceramic retainer ring 7, so that the ceramic ball 6 can rotate freely, and no current passes between the bearing seat I18 and the lever 13;
preferably, the lower end of the bearing seat II36 is in clearance fit with the bearing plane washer II 21; the other end of the bearing seat II36 is a shaft and is connected with the heat insulation layer I25, the coupler I26 and the connecting shaft 22. The two sides of the shaft end of the bearing seat II36 are in loading contact through the arc-shaped carbon plate 23, the arc shape can increase the contact area, reduce the current density and reduce the temperature rise; and the conductivity is good. When the arc-shaped carbon plate 23 is matched with the shaft end of the bearing seat II31, the inner diameter of the arc is the same as the outer diameter of the shaft.
Preferably, the bearing seat I18, the carbon plate clamp 24 and the bearing seat II36 are all made of copper alloy materials; the arc-shaped carbon plate 23 is made of carbon material; the lubricant material of the linear bearing 39 is a solid conductive material such as graphite.
Preferably, the connecting shaft 22 is a ceramic material, such as Al2O3Or a material having a ceramic coating;
preferably, the guide rod 41 is connected with an insulating plate 42, and the insulating plate 42 can be ceramic, bakelite or engineering plastic;
preferably, the current booster 60 can also be a voltage booster, so that the friction wear test of the bearing under the condition of higher voltage can be realized;
preferably, the bearing system comprises a bearing plane gasket I19, a ball 20 and a bearing plane gasket II21, wherein the bearing can be a ball plane bearing, a needle plane bearing, a cylindrical roller plane bearing, a tapered roller bearing or a deep groove ball bearing;
preferably, the two ends of the connecting shaft 22 are respectively provided with a heat insulation layer I25 and a heat insulation layer II28, the heat insulation layers are made of EVA heat insulation materials, glass wool heat insulation materials or fiber paper and organic silicon resin heat insulation materials, wherein the fiber paper and organic silicon resin materials comprise fiber paper and organic silicon resin, so that heat of a friction interface is prevented from being transferred to the shaft end of the motor, and the purpose of protecting the motor is achieved;
preferably, the voltmeter 17 and the ammeter 48 can monitor the voltage and current changes loaded between the bearing planar washer I19 and the bearing planar washer II 21; the resistance between the bearing washers (inner and outer rings) can be calculated according to the ohm law R-U/I, and can be approximately equal to the resistance generated by the lubricating grease in the bearing running process;
preferably, an infrared camera 49 capable of monitoring the temperature of the friction interface from the side of the bearing; meanwhile, a temperature sensor 51 is arranged in the bearing seat I18 to collect the change process of the temperature near the side surface of the bearing;
preferably marble table 54, serves as insulation.
In order to achieve the above purpose, the working process of the utility model is as follows:
the first step is as follows: bearing mounting
Detaching the weight 10, moving the bearing seat I18 downwards, respectively installing the bearing plane washer I19, the ball 20 and the bearing plane washer II21 on the bearing seat I18 and the bearing seat II36, moving the bearing seat I18 upwards, and loading the weight 10;
the second step is that: startup monitoring software
Starting an ammeter 48, a voltmeter 17, a temperature sensor 51 and torque sensor monitoring software, starting a motor 34, and starting a bearing friction and wear test under a current-free condition; starting the infrared camera 49 to continuously or discontinuously record the temperature condition of the side surface of the bearing;
the third step: applying a current
Starting the current booster 60, adjusting the current value, and carrying out a bearing friction wear test under the current-carrying condition;
the fourth step: end of the test
After the test is finished, the current rising device 60, the motor 34, the ammeter 48, the voltmeter 17, the temperature sensor 51, the torque sensor 29 and the infrared camera 49 are closed in sequence, and relevant data are stored.
The weight 10 was unloaded and the bearing flat washer I19, ball 20 and bearing flat washer II21 were removed for further wear and grease analysis.
Example 2:
referring to embodiment 1 and fig. 3, the present embodiment provides a shaft-bearing flow friction testing apparatus, which is different from embodiment 1 in that a bearing system, i.e., a bearing plane washer I19, a ball 20, and a bearing plane washer II21, is replaced with a tapered roller bearing, a bearing outer ring 61, a tapered roller 62, and a bearing inner ring 63.
Other systems and working procedures were the same as in example 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a shaft carries a stream friction testing arrangement which characterized in that: comprises a control system, a loading system, a clamp system, a driving system, a data acquisition system, a current-carrying system and a bearing system,
the control system comprises a control cabinet and a computer, wherein the control cabinet is connected with the computer through a control data line;
the loading system comprises a ceramic ball, a weight and a lever,
the fixture system comprises a bearing seat guide, a bearing seat I, a carbon plate fixture, a bearing seat II, a linear bearing, a spring, a guide rod and an insulating plate;
the driving system comprises a heat insulation layer I, a heat insulation layer II, a motor, a connecting shaft and a bearing seat II;
the data acquisition system comprises a voltmeter, a torque sensor, an ammeter, an infrared camera and a temperature sensor;
the current-carrying system comprises an arc-shaped carbon plate and a current rising device;
the bearing system comprises a bearing plane washer I, a ball and a bearing plane washer II;
the weight is placed on a weight tray, the weight tray is hung at the end part of a lever, the lever takes a lever bracket as a fulcrum, the other end of the lever is contacted with a ceramic ball, and the ceramic ball is connected with a fixed ceramic retainer ring; the ceramic ball is connected with a fixed ceramic retainer ring, and the fixed ceramic ball retainer ring is fixed at the bottom of the bearing seat;
the bearing seat I is arranged in the bearing seat guide, the bearing plane gasket I is matched with the bearing seat I, the bearing plane gasket I, the ball and the bearing plane gasket II are sequentially connected from bottom to top, and the bearing plane gasket II is matched with the lower end of the bearing seat II;
the upper end of the bearing seat II is provided with a shaft, the bearing seat II is connected with the heat insulation layer I and the connecting shaft through a coupling I, and the bearing seat II is connected with the arc-shaped carbon plate;
the arc-shaped carbon plate is embedded in the carbon plate clamp, the linear bearing is connected with the spring, the spring is sleeved on the guide rod, and the arc-shaped carbon plate is loaded on the shaft surface of the bearing seat II under the action of the spring;
the guide rod is connected with an insulating plate, the insulating plate is fixed on a fixing plate III, and the fixing plate III is fixed on a fixing plate II;
the connecting shaft and the thermal insulation layer II are connected through a coupling II, the other end of the torque sensor is connected with an output shaft of a motor through a coupling III, the motor is fixed on a fixing plate I, the fixing plate I is connected with the fixing plate II, and the fixing plate II is fixed on an insulation table board;
the current booster switch is connected with an ammeter, and the ammeter is connected with the carbon plate clamp; meanwhile, the current booster is connected with a bearing seat I, the voltmeter is respectively connected with the bearing seat I and the carbon plate clamp, and the infrared camera is fixed on the insulating table board through a fixing plate III and a bolt; the temperature sensor is connected with the bearing seat I, and the ammeter, the voltmeter, the infrared camera and the temperature sensor are respectively connected with the control cabinet through data lines.
2. The shaft bearing flow friction test device of claim 1, wherein: the ceramic ball is made of ceramic materials and is fixed at the bottom of the bearing seat I through the fixed ceramic retainer ring, the ceramic ball is in clearance fit with the fixed ceramic retainer ring, the ceramic ball can rotate freely, and no current passes between the bearing seat I and the lever.
3. The shaft bearing flow friction test device of claim 1, wherein: the lower end of the bearing seat II is in clearance fit with the bearing plane gasket II; the other end of the bearing seat II is a shaft and is connected with the heat insulation layer I, the coupler I and the connecting shaft, arc-shaped carbon plates are in loading contact with two sides of the shaft end of the bearing seat II, and when the arc-shaped carbon plates are matched with the shaft end of the bearing seat II, the arc-shaped inner diameter is the same as the outer diameter of the shaft.
4. The shaft bearing flow friction test device of claim 1, wherein: the bearing seat I, the carbon plate clamp and the bearing seat II are all made of copper alloy materials; the arc-shaped carbon plate is made of carbon material; the lubricating material of the linear bearing is selected from a solid conductive material.
5. The shaft bearing flow friction test device of claim 1, wherein: the connecting shaft is made of ceramic materials or materials with ceramic coatings.
6. The shaft bearing flow friction test device of claim 1, wherein: the insulating plate may be ceramic, bakelite or engineering plastic.
7. The shaft bearing flow friction test device of claim 1, wherein: the current booster can also be a voltage booster.
8. The shaft bearing flow friction test device of claim 1, wherein: the bearing plane washer I, the rolling balls and the bearing plane washer II of the bearing system can be ball plane bearings, needle roller plane bearings, cylindrical roller plane bearings, tapered roller bearings or deep groove ball bearings.
9. The shaft bearing flow friction test device of claim 1, wherein: the two ends of the connecting shaft are respectively provided with a heat insulation layer I and a heat insulation layer II, and the heat insulation layers are made of EVA heat insulation materials, glass wool heat insulation materials or fiber paper and organic silicon resin heat insulation materials.
10. The shaft bearing flow friction test device of claim 1, wherein: the voltmeter and the ammeter are used for monitoring the voltage and current changes loaded between the bearing plane gasket I and the bearing plane gasket II.
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| CN202020267994.4U CN211855841U (en) | 2020-03-06 | 2020-03-06 | Shaft bearing flow friction testing device |
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| CN202020267994.4U CN211855841U (en) | 2020-03-06 | 2020-03-06 | Shaft bearing flow friction testing device |
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| CN211855841U true CN211855841U (en) | 2020-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189637A (en) * | 2020-03-06 | 2020-05-22 | 清华大学天津高端装备研究院 | Shaft bearing flow friction testing device and method |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189637A (en) * | 2020-03-06 | 2020-05-22 | 清华大学天津高端装备研究院 | Shaft bearing flow friction testing device and method |
| CN111189637B (en) * | 2020-03-06 | 2024-08-30 | 清华大学天津高端装备研究院 | Bearing current-carrying friction testing device and method |
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