CN111307436A - Reciprocating tribology behavior research test bed for isolating vibration transmission - Google Patents
Reciprocating tribology behavior research test bed for isolating vibration transmission Download PDFInfo
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- CN111307436A CN111307436A CN202010155250.8A CN202010155250A CN111307436A CN 111307436 A CN111307436 A CN 111307436A CN 202010155250 A CN202010155250 A CN 202010155250A CN 111307436 A CN111307436 A CN 111307436A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
Abstract
The invention discloses a reciprocating tribology behavior research test bed for isolating vibration transmission, wherein a lower friction sample is arranged on a test bed base, an upper friction sample is arranged above the lower friction sample, a driving system is arranged between the lower friction sample and the test bed base, the upper friction sample is connected with a loading system, the driving system comprises a voice coil motor and a lower clamp mounting platform, a first air bearing is fixedly arranged at the bottom of the lower clamp mounting platform, and the voice coil motor and the first air bearing are combined to realize frictionless reciprocating motion. By utilizing the non-contact characteristic of compressed air, interference signals caused by non-interface friction vibration are isolated or filtered in advance in a test, and the friction pair interface friction self-excited vibration is ensured not to be influenced by the vibration interference signals, so that the evolution law of the interface tribology behavior is researched and analyzed, and the influence factors of the reciprocating interface tribology behavior are explored.
Description
Technical Field
The invention belongs to the technical field of frictional vibration, and particularly relates to a reciprocating tribology behavior research test bed for isolating vibration transmission.
Background
When two objects in contact with each other slide relatively, under certain conditions, the system can generate strong friction self-excited vibration and thus generate complex interface tribological behavior, which is a phenomenon very common in daily life and engineering. For example, the precision machine tool moving part can cause cutting vibration of a workpiece or a cutter in the feeding motion, so that the abrasion of the workpiece or the cutter is increased, and the precision of the machine tool is reduced; in the case of unreasonable brake disc design and aging of friction materials, the rail vehicle brake system may cause strong friction self-excited vibration of the brake system, and complicated interface tribological behaviors such as screech noise and the like are accompanied. Deterioration of tribological behavior in mechanical systems often leads to a reduction in the life of the parts involved and, in the worst case, to premature failure of the load-bearing parts.
Therefore, how to effectively simulate the interfacial tribology behavior and explore the influencing factors of the interfacial tribology behavior becomes a significant problem for researchers and related enterprises in the industry. Some researchers reproduce engineering phenomena by building a tribology behavior research test bed, and then obtain specific characteristic parameters of the test by using a characterization analysis means. The experimental test is convenient and direct, has high authenticity, and is widely welcomed by researchers in the engineering field.
When a friction study behavior research test is carried out, a vibration signal of a friction interface is transmitted to a test bed supporting component through a rigid connecting structure, resonance phenomena of the rigid connecting structure of the test bed are possibly caused, the resonance signal can return to the friction interface through the rigid connecting structure of the test bed, the vibration characteristics of the friction interface are covered, and a plurality of interference peak values appear in a frequency spectrum. In addition, vibration signals generated in the operation of power components such as a driving motor and the like are also transmitted to the friction interface through the rigid connecting structure of the test bed, so that the vibration signals of the friction interface are superposed. In short, non-friction interface vibration signals such as resonance signals of a rigid structure of the test bed and vibration signals of the driving part belong to interference signals existing in the test, and are not beneficial to accurately researching the interface tribology behavior of the friction pair. However, the existing interface tribology behavior research test device does not consider the above problems, so that the interface friction self-excited vibration and a series of interface tribology behavior researches caused by the interface friction self-excited vibration lack accurate test reproduction, and the generation mechanism of the friction pair interface friction self-excited vibration and the evolution rule and the influencing factors of the interface tribology behavior are not effectively revealed.
The working environment of the mechanical system with the friction pair is mostly in a severe atmosphere, such as a vehicle brake disc, a shield machine cutter and the like, the operation of the mechanical system is influenced by various conditions in the atmosphere, such as sand, wind dust, temperature, humidity and the like, the influence on tribology behaviors is great, parts are damaged more easily, when the experimental means is used for simulating the interface tribology behaviors, the real environmental conditions need to be restored, and the obtained experimental conclusion is more real and reliable and has reference significance.
Therefore, the reciprocating tribology behavior research test bed for isolating vibration transmission is developed, interference signals caused by non-interface friction vibration are isolated or filtered in advance in the test, influence factors of the interface tribology behavior are accurately analyzed, and the evolution law of the tribology behavior of a mechanical system is explored by combining various environmental simulations, so that the test bed has extremely important significance.
Disclosure of Invention
Aiming at the problem that the vibration interference signal and the interface friction self-excited vibration characteristic in the existing tribology behavior research test device can not be completely separated, the invention provides a reciprocating tribology behavior research test bed for isolating vibration transmission, which aims to: the non-contact compressed air is used as an isolation means to isolate vibration interference signals caused by a non-friction interface in a tribology behavior research test, so that influence factors of the tribology behavior of the interface are more accurately disclosed, and the evolution law of the tribology behavior of a mechanical system is accurately researched by combining various complex environmental conditions in the service process of mechanical equipment.
The technical scheme adopted by the invention is as follows:
the utility model provides an keep apart reciprocating type tribology action research test bench of vibration transmission, includes the test bench base, be provided with down the friction sample on the test bench base, friction sample top is provided with down the friction sample, be provided with actuating system between friction sample and the test bench base down, it is connected with loading system to go up the friction sample, actuating system includes voice coil motor and lower anchor clamps mounting platform, be connected through anchor clamps mounting platform down between voice coil motor and the lower friction sample, the lower friction sample sets firmly under on anchor clamps mounting platform, one side of anchor clamps mounting platform is connected down voice coil motor, the bottom of anchor clamps mounting platform has set firmly the first air bearing of several down, be provided with first slip guide shaft in the first air bearing, first slip guide shaft sets firmly in test bench base top.
In the scheme, the driving system is arranged to drive the lower friction sample to do reciprocating linear motion, and the loading system is arranged to control the friction contact load required by the upper friction sample and the lower friction sample, so that the driving system and the loading system can change friction interface factors or test conditions to simulate different friction working conditions of a contact object, wherein the lower friction sample is mounted on the lower clamp mounting platform, the reciprocating motion of the lower clamp mounting platform is driven by the voice coil motor, the voice coil motor is used as a power device of the driving system, the accuracy and the stability of the high-frequency reciprocating motion of the lower clamp mounting platform can be realized, and the voice coil motor has the advantages of short time delay, quick response and smooth controllability and convenience in precisely controlling the reciprocating motion of the lower friction sample. The first air bearing and the first sliding guide shaft are used as executing structures for transmitting motion, non-contact compressed air is used as an isolating means, decoupling of an interface friction self-excitation vibration signal, other rigid structure resonance signals and a driving component vibration signal is achieved, reciprocating interface tribology behaviors under the condition of isolating vibration interference signal transmission are explored, further, an interface tribology behavior evolution rule and influence factors of the interface tribology behavior evolution rule are effectively revealed, and a feasible method for regulating and controlling the interface tribology behaviors is explored.
Preferably, the loading system includes servo motor, lower mount pad and last mount pad, the top of going up the friction sample is connected mount pad down, the top of mount pad is provided with the mount pad down, connect through several second sliding guide axle between mount pad and the last mount pad down, be provided with second air bearing on the second sliding guide axle, the one end of second sliding guide axle sets firmly under on the mount pad, and the other end passes second air bearing and last mount pad fixed connection, go up one side fixedly connected with air supporting slip table of mount pad, set up in the air supporting slip table servo motor, the air supporting slip table sets firmly through the I-shaped support on the test bench base. With this preferred arrangement, a servo motor is used to control the frictional contact load of the upper friction sample against the lower friction sample, and a second air bearing is mounted on the second slide guide shaft. With this preferred solution, a contactless frictional movement in the axial direction can be achieved using the second air bearing as an important load-transmitting part. The servo motor is arranged in the air floatation sliding table, and the non-contact working principle of the air floatation sliding table is that compressed air completely without friction exists between the base of the air floatation sliding table and the working table surface.
Preferably, an upper friction sample clamp is arranged between the upper friction sample and the lower mounting seat, and the upper friction sample clamp are detachably connected. Adopt this preferred scheme, go up the friction sample and fix the bottom at last friction sample anchor clamps, go up the bottom of friction sample anchor clamps through the bolt fastening at mount pad down, go up the friction sample and can be threaded connection with dismantling between the friction sample anchor clamps down, be convenient for change and install the friction sample.
Preferably, an acceleration sensor is arranged on one side of the lower mounting seat, and a three-way force sensor is arranged at the bottom of the lower mounting seat. By adopting the preferred scheme, monitoring devices such as an acceleration sensor, a three-way force sensor and the like of the test bed are connected with a computer, and the computer analysis software can be used for observing the condition of the sample and processing test data, changing friction interface factors or environmental conditions to simulate different contact working conditions of the friction sample, exploring influence factors of single variables, and exploring the influence factors of tribological behaviors by combining information such as the abrasion morphology of the friction sample.
Preferably, be provided with environment atmosphere cover on the anchor clamps mounting platform down, the sample setting of rubbing down is in inside the environment atmosphere cover, one side of environment atmosphere cover is provided with the mounting hole, the mounting hole is connected with the external environment source, environment atmosphere cover is the box structure, the open-top of environment atmosphere cover, the both sides that environment atmosphere cover is close to the top are provided with respectively and roll over the canopy windscreen. By adopting the preferable scheme, the test bed adopts an environment atmosphere cover to form a closed experimental environment, so that an upper friction sample and a lower friction sample which are placed in the environment cover are more fit with the complex environmental conditions in the service process of mechanical equipment in the test, and the obtained influence factors of the interfacial tribology behavior are more accurate and effective; the bellows windshield is used for fully sealing and shielding the upper friction sample and the lower friction sample.
Preferably, the environmental atmosphere cover comprises an outer cover and an inner cover, the inner cover is arranged in the outer cover, and the inner cover is connected with the outer cover through a sliding rail. By adopting the preferred scheme, the inner cover can move up and down relative to the outer cover, and the test requirements of different heights are met.
Preferably, the external environment source is the gravel loading device, the gravel loading device includes gravel pipe and gravel holding vessel, the one end and the mounting hole of gravel pipe are connected, and the other end and the gravel holding vessel of gravel pipe are connected, be provided with flow control valve between gravel pipe and the gravel holding vessel, the gravel pipe with the tip that the mounting hole is connected is provided with rotatory nozzle. The optimal scheme is adopted for simulating the interface tribology behavior in the gravel environment and exploring the evolution law and the regulation and control method of the tribology behavior of the mechanical system in the complex gravel environment.
Preferably, the external environment source is a water loading device, the water loading device comprises a water guide pipe and a water storage tank, one end of the water guide pipe is connected with the mounting hole, the other end of the water guide pipe is connected with the water storage tank, and a water flow regulating valve is arranged between the water guide pipe and the water storage tank. The optimal scheme is adopted for simulating the interface tribology behavior in the humid environment and exploring the evolution law and the regulation and control method of the mechanical system tribology behavior in the complex humid environment.
Preferably, the external environment source is a wind loading device, the wind loading device comprises a fan and a wind pipe, one end of the wind pipe is connected with the mounting hole, and the other end of the wind pipe is connected with the fan. The optimal scheme is adopted for simulating the interface tribology behavior in the wind field environment, and the evolution rule and the regulation and control method of the mechanical system tribology behavior in the complex wind field environment are explored.
Preferably, the external environment source is a temperature loading device, the temperature loading device comprises a temperature control box body and a temperature conduction pipe, a refrigerator and a heating wire are arranged in the temperature control box body, one end of the temperature conduction pipe is connected with the mounting hole, and the other end of the temperature conduction pipe is connected with the refrigerator and the heating wire respectively. The optimal scheme is adopted for simulating the interface tribology behavior in different temperature environments, and the evolution rule and the regulation and control method of the tribology behavior of the mechanical system in different temperature environments are explored. In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention is provided with a driving system to drive a lower friction sample to do reciprocating linear motion, and a loading system to control the required friction contact load of an upper friction sample and a lower friction sample, thereby being beneficial to changing friction interface factors or test conditions by the driving system and the loading system to simulate different friction working conditions of a contact object, wherein the lower friction sample is arranged on a lower clamp mounting platform, the reciprocating motion of the lower clamp mounting platform is driven by a voice coil motor, the voice coil motor is used as a power device of the driving system, the accuracy and the stability of the high-frequency reciprocating motion of the lower clamp mounting platform can be realized, and the voice coil motor has short time delay, quick response and smooth controllability, and is convenient for accurately controlling the reciprocating motion of the lower friction sample. The first air bearing and the first sliding guide shaft are used as executing structures for transmitting motion, aiming at the condition that a vibration signal of a friction interface generates a resonance signal through a rigid connecting structure and returns to the friction interface to cause the vibration characteristic of the friction interface to generate covering, and the condition that the vibration signal generated by a power component such as a driving motor is transmitted to the friction interface through a test bed rigid connecting structure to cause the vibration signal of the friction interface to be superposed, non-contact compressed air is used as an isolating means to realize the decoupling of an interface friction self-excited vibration signal and other rigid structure resonance signals and the vibration signal of the driving component, the tribology behavior of a reciprocating interface under the condition of isolating the vibration interference signal transmission is explored, the evolution rule and the influence factors of the interface tribology behavior are effectively revealed, and a feasible method for regulating and controlling the interface tribology behavior is explored.
2. The invention uses the servo motor to control the friction contact load of the upper friction sample to the lower friction sample, the second air bearing is arranged on the second sliding guide shaft, and the second air bearing is used as an important load transfer part, so that the non-contact friction motion along the axial direction can be realized. The servo motor is arranged in the air floatation sliding table, and the non-contact working principle of the air floatation sliding table is that compressed air completely without friction exists between the base of the air floatation sliding table and the working table surface.
3. Go up the friction sample and fix the bottom at last friction sample anchor clamps, go up friction sample anchor clamps and pass through the bottom of bolt fastening mount pad under, go up friction sample and friction sample anchor clamps down and can be connected for threaded connection dismantled between being convenient for change and install the friction sample. The monitoring devices such as an acceleration sensor and a three-way force sensor of the test bed are connected with a computer, the computer analysis software is utilized to realize sample observation and test data processing, friction interface factors or environment conditions are changed to simulate different contact working conditions of a friction sample, influence factors of a single variable are researched, and the method is used for researching the evolution rule and the regulation and control method of interface tribology behaviors by combining information such as the abrasion morphology of the friction sample.
4. The test bed adopts an environment atmosphere cover to form a closed experimental environment, so that an upper friction sample and a lower friction sample which are placed in the environment cover are more fit with the complex environmental conditions in the service process of mechanical equipment in the test, and the obtained influence factors of the interfacial tribology behavior are more accurate and effective; the bellows windshield is used for fully sealing and shielding the upper friction sample and the lower friction sample.
5. The invention can independently develop the tribology behavior tests in wind field environment, humid environment, gravel environment and different temperature environments, and can also combine the tribology behavior tests in different environments, thereby enabling the invention to simulate various complicated extreme environment conditions, exploring the evolution law and the regulation and control method of the interface tribology behavior of the mechanical system under various complicated extreme environment conditions, and enabling the experimental conclusion to be more real and reliable and have reference significance.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of: a perspective view of one embodiment of the present invention.
FIG. 2 is a diagram of: a perspective view of one embodiment of the present invention.
FIG. 3 is a diagram of: a perspective view of one embodiment of the loading device of the present invention.
FIG. 4 is a diagram of: a perspective view of one embodiment of the drive of the present invention.
Reference numerals: 1-a test stand base; 2-lower friction of the sample; 3-rubbing the sample; 4-a voice coil motor; 5-mounting a platform by a lower clamp; 6-a first air bearing; 7-a first sliding guide shaft; 8-a left support seat; 9-right support seat; 10-lower mounting seat; 11-upper mounting seat; 12-a second sliding guide shaft; 13-a second air bearing; 14-an air floatation sliding table; 15-I-shaped support; 16-upper friction sample clamp; 17-an acceleration sensor; an 18-three-way force sensor; 20-bellows windshield; 21-a housing; 22-inner cover; 23-a gravel loading device; 24-a water loading device; 25-a wind loading device; 26-temperature loading device.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention is described in detail below with reference to fig. 1-4.
A reciprocating tribology behavior research test bed for isolating vibration transmission comprises a test bed base 1, a lower friction sample 2 is arranged on the test bed base 1, an upper friction sample 3 is arranged above the lower friction sample 2, a driving system is arranged between the lower friction sample 2 and the test bed base 1, the upper friction sample 3 is connected with a loading system, the driving system comprises a voice coil motor 4 and a lower clamp mounting platform 5, the voice coil motor 4 is connected with the lower friction sample 2 through the lower clamp mounting platform 5, the lower friction sample 2 is fixedly arranged on a lower clamp mounting platform 5, one side of the lower clamp mounting platform 5 is connected with the voice coil motor 4, the bottom of lower anchor clamps mounting platform 5 sets firmly the first air bearing 6 of several, be provided with first slip guide axle 7 in the first air bearing 6, first slip guide axle 7 sets firmly in test bench base 1 top.
Loading system servo motor, lower mount pad 10 and last mount pad 11, the top of going up friction sample 3 is connected mount pad 10 down, the top of mount pad 10 is provided with mount pad 11 down, connect through several second slip guide axle 12 down between mount pad 10 and the last mount pad 11, be provided with second air bearing 13 on the second slip guide axle 12, the one end of second slip guide axle 12 sets firmly under on mount pad 10, and the other end passes second air bearing 13 and last mount pad 11 fixed connection, go up one side fixedly connected with air supporting slip table 14 of mount pad 11, set up in the air supporting slip table 14 servo motor, air supporting slip table 14 sets firmly through the I-shaped support 15 on the test bench base 1.
An upper friction sample clamp 16 is arranged between the upper friction sample 3 and the lower mounting seat 10, and the upper friction sample 3 is detachably connected with the upper friction sample clamp 16.
An acceleration sensor 17 is arranged on one side of the lower mounting seat 10, and a three-way force sensor 18 is arranged at the bottom of the lower mounting seat 10.
In the first embodiment, the test stand base 1 is completely fixed to the ground, and other devices are mounted on the test stand base 1. When the driving device is installed, clean, dry and compressed air with a certain pressure is supplied to the first air bearing 6, the surface of the first sliding guide shaft 7 is kept clean and clean, and the first air bearing 6 is installed in the first sliding guide shaft 7 and continuous air pressure is kept. After two first air bearing 6 are packed into in the connection of first slip guiding axle 7, the both ends of first slip guiding axle 7 set firmly on test bench base 1 through left supporting seat 8 and right supporting seat 9 respectively, the one end of first slip guiding axle 7 sets firmly on left supporting seat 8, and the other end passes first air bearing 6 and 9 fixed connection of right supporting seat to apply slight screw pressure respectively on two supporting seats, be used for fixing first slip guiding axle 7, ensure that two first slip guiding axles 7 are parallel (can use gage block etc.), pass through bolt fixed connection on test bench base 1 with two supporting seats at last. The air pressure in the bearing is determined to be equal through the air inlet of the first air bearing 6, the bottom of the lower clamp mounting platform 5 is aligned to the shell of the first air bearing 6, the lower clamp mounting platform 5 is ensured to freely slide along the axial direction of the first sliding guide shaft 7 through bolt connection, and the unevenness degree of the lower clamp mounting platform 5 can be supplemented by adjusting the heights of the left supporting seat 8 and the right supporting seat 9 when necessary.
The shell of the fixed end of the voice coil motor 4 in the driving device is connected with the motor mounting seat through the bolt, the effect of supporting the voice coil motor 4 is achieved, the motor mounting seat is fixed on the test bed base 1 through the bolt, the cylindrical coil shell of the voice coil motor 4 is connected with the circular cross section of the lower clamp mounting platform 5 through the bolt, and therefore the linear motion of the voice coil motor 4 is transmitted to the lower clamp mounting platform 5 to drive the lower friction sample 2 to achieve linear reciprocating motion.
An air-floating sliding table 14 adopted by the loading device is vertically installed through an I-shaped support 15, two ends of a base of the air-floating sliding table 14 are fixed on two I-shaped cross beams of the I-shaped support 15 through connecting plates, one side, away from the base, of the air-floating sliding table 14 is a working table, the working table is connected with an upper installation seat 11, a certain number of bolt holes are formed in the working table, the upper installation seat 11 is fixed on the working table through bolts, and the installation method and the attention points of a second sliding guide shaft 12 and a second air bearing 13 are equal to those of a first sliding guide shaft 7 and a first air bearing 6 in a driving device. A linear servo motor is arranged inside the air floatation sliding table 14, and the servo motor is started to transmit linear motion to the upper mounting seat 11 through the working platform surface, so that the contact pressure of the upper friction sample 3 and the lower friction sample 2 is accurately controlled.
The upper friction sample 3 is divided into a cylindrical part and a friction sample contact part, the cylindrical part is connected with the upper friction sample clamp 16, the friction sample contact part is in contact with the lower friction sample 2 when being used as a friction sample, the end part of the cylindrical part is provided with threads, and the bottom of the upper friction sample clamp 16 is provided with a screw hole, so that the detachable connection between the upper friction sample 3 and the upper friction sample clamp 16 can be realized; alternatively, a screw hole may be formed in the side surface of the upper friction sample holder 16, and after the cylindrical portion is placed in the through hole in the bottom of the upper friction sample holder 16, a bolt may be screwed in from the side surface of the upper friction sample holder 16 so that the head of the bolt abuts against the cylindrical portion, and the upper friction sample 3 may be fixed in the upper friction sample holder 16 by the pressure applied to the cylindrical portion by the bolt and the frictional force between the cylindrical portion and the upper friction sample holder 16.
The axial force, the radial force and the frictional resistance received in the experiment of the upper friction sample 3 are measured by using the three-way force sensor 18, and the vibration acceleration in the experiment of the upper friction sample 3 is measured by using the acceleration sensor 17. The detection device of the invention comprises a three-way force sensor 18, an acceleration sensor 17, a microphone, a test acquisition instrument, a computer and the like, and the connection mode, the control system and the like of the three-way force sensor, the acceleration sensor and the microphone are not specifically explained in the prior art.
Be provided with environment atmosphere cover on the anchor clamps mounting platform 5 down, lower friction sample 2 sets up inside the environment atmosphere cover, one side of environment atmosphere cover is provided with the mounting hole, the mounting hole is connected with the external environment source, environment atmosphere cover is the box structure, the open-top of environment atmosphere cover, the both sides that environment atmosphere cover is close to the top are provided with respectively and roll over canopy windscreen 20.
The environmental atmosphere cover comprises an outer cover 21 and an inner cover 22, wherein the inner cover 22 is arranged in the outer cover 21, and the inner cover 22 is connected with the outer cover 21 through a sliding rail.
External environment source is gravel loading device 23, gravel loading device includes gravel pipe and grit holding vessel, the one end and the mounting hole of gravel pipe are connected, and the other end and the grit holding vessel of gravel pipe are connected, be provided with flow control valve between gravel pipe and the grit holding vessel, the gravel pipe with the tip that the mounting hole is connected is provided with rotatory nozzle.
The external environment source is water loading device 24, water loading device includes water pipe and water storage tank, the one end and the mounting hole of water pipe are connected, and the other end and the water storage tank of water pipe are connected, be provided with the rivers governing valve between water pipe and the water storage tank.
The external environment source is a wind loading device 25 which comprises a fan and a wind pipe, one end of the wind pipe is connected with the mounting hole, and the other end of the wind pipe is connected with the fan.
The external environment source is a temperature loading device 26, the temperature loading device comprises a temperature control box body and a temperature conduction pipe, a refrigerator and a heating wire are arranged in the temperature control box body, one end of the temperature conduction pipe is connected with the mounting hole, and the other end of the temperature conduction pipe is connected with the refrigerator and the heating wire respectively.
The embodiment is further preferable on the basis of the first embodiment, the outer cover 21 of the environmental atmosphere cover is fixed on the lower clamp mounting platform 5 through bolts, four sliding rails are arranged on the side wall of the inner cover 22, the inner cover 22 can move up and down inside the outer cover 21, the test requirements of different heights are met, two sections of folding shed windshields 20 are mounted at the top of the inner cover 22, a gap between the two sections of folding shed windshields 20 is used as an opening of the environmental atmosphere cover for the lower mounting seat 10 and the upper friction sample 3 to enter the inner cover 22, and the joint of the folding shed windshields 20 and the lower mounting seat 10 is sealed by using rubber sealing strips, so that the upper friction sample 3 and the lower friction sample 2 can be completely sealed. When the friction sample reciprocates, due to the good horizontal flexibility and flexibility of the bellows damper 20, the bellows damper 20 can repeatedly stretch and contract along with the reciprocating motion to deform, so that the sealing performance of the environmental atmosphere cover in the experiment is ensured. According to the test requirements, the environmental conditions to be simulated in the test need to be determined, and a suitable external environment source is selected, for example, a flow regulating valve of the gravel loading device 23 is opened, the gravel volume in unit time is controlled, parameters of the water loading device 24 are adjusted, and the water inlet volume and the water flow speed in unit time are set, so that a wet gravel environment is formed.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. The utility model provides an isolation vibration transmission's reciprocating type tribology action research test bench, includes test bench base (1), be provided with down friction sample (2) on test bench base (1), friction sample (2) top is provided with friction sample (3) down, be provided with actuating system down between friction sample (2) and test bench base (1), it is connected with loading system, its characterized in that to go up friction sample (3): the driving system comprises a voice coil motor (4) and a lower clamp mounting platform (5), the voice coil motor (4) is connected with the lower friction sample (2) through the lower clamp mounting platform (5), the lower friction sample (2) is fixedly arranged on the lower clamp mounting platform (5), one side of the lower clamp mounting platform (5) is connected with the voice coil motor (4), a plurality of first air bearings (6) are fixedly arranged at the bottom of the lower clamp mounting platform (5), a first sliding guide shaft (7) is arranged in the first air bearings (6), and the first sliding guide shaft (7) is fixedly arranged above the test bed base (1).
2. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 1, wherein: the loading system comprises a servo motor, a lower mounting seat (10) and an upper mounting seat (11), the upper part of the upper friction sample (3) is connected with the lower mounting seat (10), an upper mounting seat (11) is arranged above the lower mounting seat (10), the lower mounting seat (10) and the upper mounting seat (11) are connected through a plurality of second sliding guide shafts (12), a second air bearing (13) is arranged on the second sliding guide shaft (12), one end of the second sliding guide shaft (12) is fixedly arranged on the lower mounting seat (10), the other end of the second sliding guide shaft passes through a second air bearing (13) and is fixedly connected with the upper mounting seat (11), one side of the upper mounting seat (11) is fixedly connected with an air-float sliding table (14), the servo motor is arranged in the air floatation sliding table (14), and the air floatation sliding table (14) is fixedly arranged on the test bed base (1) through an I-shaped support (15).
3. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 2, wherein: and an upper friction sample clamp (16) is arranged between the upper friction sample (3) and the lower mounting seat (10), and the upper friction sample (3) is detachably connected with the upper friction sample clamp (16).
4. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 2, wherein: an acceleration sensor (17) is arranged on one side of the lower mounting seat (10), and a three-way force sensor (18) is arranged at the bottom of the lower mounting seat (10).
5. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 1, wherein: be provided with environment atmosphere cover on anchor clamps mounting platform (5) down, friction sample (2) set up down inside the environment atmosphere cover, one side of environment atmosphere cover is provided with the mounting hole, the mounting hole is connected with the external environment source, environment atmosphere cover is the box structure, the open-top of environment atmosphere cover, the both sides that environment atmosphere cover is close to the top are provided with bellows windscreen (20) respectively.
6. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 5, wherein: the environment atmosphere cover comprises an outer cover (21) and an inner cover (22), wherein the inner cover (22) is arranged in the outer cover (21), and the inner cover (22) is connected with the outer cover (21) through a sliding rail.
7. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 5, wherein: the external environment source is gravel loading device (23), gravel loading device includes gravel pipe and gravel holding vessel, the one end and the mounting hole of gravel pipe are connected, and the other end and the gravel holding vessel of gravel pipe are connected, be provided with flow control valve between gravel pipe and the gravel holding vessel, the gravel pipe with the tip that the mounting hole is connected is provided with rotatory nozzle.
8. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 5, wherein: the external environment source is water loading device (24), water loading device includes water pipe and water storage tank, the one end and the mounting hole of water pipe are connected, and the other end and the water storage tank of water pipe are connected, be provided with the rivers governing valve between water pipe and the water storage tank.
9. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 5, wherein: the external environment source is a wind loading device (25) which comprises a fan and a wind pipe, one end of the wind pipe is connected with the mounting hole, and the other end of the wind pipe is connected with the fan.
10. The vibration transmission isolation reciprocating tribology behavior research test bed of claim 5, wherein: the external environment source is a temperature loading device (26), the temperature loading device comprises a temperature control box body and a temperature conduction pipe, a refrigerator and a heating wire are arranged in the temperature control box body, one end of the temperature conduction pipe is connected with the mounting hole, and the other end of the temperature conduction pipe is connected with the refrigerator and the heating wire respectively.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730221A (en) * | 2020-12-24 | 2021-04-30 | 中国汽车工程研究院股份有限公司 | Material friction test stand with laser displacement sensor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746818A (en) * | 1993-08-02 | 1995-02-14 | Nec Corp | X-y stage |
| CN101178345A (en) * | 2007-12-05 | 2008-05-14 | 西南交通大学 | Twisting or micro-moving frictional wear test method and device thereof |
| CN102416566A (en) * | 2010-09-28 | 2012-04-18 | 北方工业大学 | Static pressure air suspension direct drive turntable |
| CN102607976A (en) * | 2012-03-12 | 2012-07-25 | 西南交通大学 | Tester and method for testing test environment controllable multi-directional fine motion fatigue |
| CN102998254A (en) * | 2012-11-20 | 2013-03-27 | 清华大学 | Micro friction force measuring device |
| CN104142281A (en) * | 2014-07-15 | 2014-11-12 | 浙江工业大学 | Tangential fretting wear test device driven by voice coil motor |
| CN205465556U (en) * | 2016-01-13 | 2016-08-17 | 北京海普瑞森科技发展有限公司 | Ball grinding machine |
| CN106199073A (en) * | 2016-07-06 | 2016-12-07 | 太原理工大学 | Three axis accelerometer calibrating table based on planar air bearings decoupling device |
| TWI574778B (en) * | 2015-02-11 | 2017-03-21 | 國立勤益科技大學 | Polishing machine |
| CN108195538A (en) * | 2018-02-08 | 2018-06-22 | 西南交通大学 | A kind of testing stand for being used to study frictional vibration energy recovery efficiency |
-
2020
- 2020-03-09 CN CN202010155250.8A patent/CN111307436B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746818A (en) * | 1993-08-02 | 1995-02-14 | Nec Corp | X-y stage |
| CN101178345A (en) * | 2007-12-05 | 2008-05-14 | 西南交通大学 | Twisting or micro-moving frictional wear test method and device thereof |
| CN102416566A (en) * | 2010-09-28 | 2012-04-18 | 北方工业大学 | Static pressure air suspension direct drive turntable |
| CN102607976A (en) * | 2012-03-12 | 2012-07-25 | 西南交通大学 | Tester and method for testing test environment controllable multi-directional fine motion fatigue |
| CN102998254A (en) * | 2012-11-20 | 2013-03-27 | 清华大学 | Micro friction force measuring device |
| CN104142281A (en) * | 2014-07-15 | 2014-11-12 | 浙江工业大学 | Tangential fretting wear test device driven by voice coil motor |
| TWI574778B (en) * | 2015-02-11 | 2017-03-21 | 國立勤益科技大學 | Polishing machine |
| CN205465556U (en) * | 2016-01-13 | 2016-08-17 | 北京海普瑞森科技发展有限公司 | Ball grinding machine |
| CN106199073A (en) * | 2016-07-06 | 2016-12-07 | 太原理工大学 | Three axis accelerometer calibrating table based on planar air bearings decoupling device |
| CN108195538A (en) * | 2018-02-08 | 2018-06-22 | 西南交通大学 | A kind of testing stand for being used to study frictional vibration energy recovery efficiency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730221A (en) * | 2020-12-24 | 2021-04-30 | 中国汽车工程研究院股份有限公司 | Material friction test stand with laser displacement sensor |
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