CN109142213A - Rocket sledge sliding rail coefficient of sliding friction measuring device - Google Patents
Rocket sledge sliding rail coefficient of sliding friction measuring device Download PDFInfo
- Publication number
- CN109142213A CN109142213A CN201811301627.5A CN201811301627A CN109142213A CN 109142213 A CN109142213 A CN 109142213A CN 201811301627 A CN201811301627 A CN 201811301627A CN 109142213 A CN109142213 A CN 109142213A
- Authority
- CN
- China
- Prior art keywords
- sliding rail
- pulley
- counterweight pulley
- coefficient
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of rocket sledge sliding rail coefficient of sliding friction measuring devices, including extension pulley, counterweight pulley, sliding rail and vehicle carried data collecting and processing system, counterweight pulley and extension pulley are set in turn on sliding rail, the front end of counterweight pulley and the rear end of extension pulley connect, the bottom of counterweight pulley is equipped with test slide plate, vertical force sensor is equipped between counterweight pulley and the upper surface for testing slide plate, course force snesor is equipped between counterweight pulley and the rear end face for testing slide plate, the ground of the side of sliding rail is equipped with ground magnet, the side of counterweight pulley is equally spaced has Hall-type speed sensor along its length, vehicle carried data collecting and processing system are set on counterweight pulley, vehicle carried data collecting and processing system respectively with vertical force sensor, course force snesor and Hall-type speed sensor.The coefficient of sliding friction between the rocket rocket sledge sliding block rapidly and accurately surveyed and sliding rail, the configuration of the present invention is simple are easy to operate, measurement accuracy is high, advantage of lower cost.
Description
Technical field
The present invention relates to air equipment field of measuring technique, and in particular to a kind of rocket sledge sliding rail coefficient of sliding friction measurement
Device.
Background technique
Country's friction coefficient measurement technology has application on railway, airfield runway, highway at present, but belongs to rolling friction
Coefficient measurement, almost blank, wherein rocket sledge sliding rail sliding rub the coefficient of sliding friction measuring device with engineering sense
Wiping coefficient measuring device belongs at home to be developed for the first time.
Classical friction theoretical formula μ=fIt rubs/ Ν shows that coefficient of friction is related with friction pair material and interface pressure, modern age
Theoretical research shows that coefficient of friction is also related with the factors such as relative sliding velocity, lubricating condition, surface temperature.Engineering is in practice such as
What accurately identifies above-mentioned affecting parameters and then calculates that coefficient of friction is the key that friction coefficient measurement equipment development.
The rocket sledge sliding rail coefficient of sliding friction is particularly important for rocket sledge ballistic computation.Multiple important rocket sledge at home
In test, testpieces work starting point must be selected in Rocket sled test braking section, since rocket sledge braking section deceleration is by sliding rail
Coefficient of friction variation is affected, and the practical coasting distance of rocket sledge braking section differs hundreds of meters compared with trajectory estimated value or more, thus
Causing testpieces starting spot speed index transfinites, tests invalid situation generation.
For rocket sledge sliding rail, rocket sledge sliding block is same as coefficient of friction between sliding rail fast with friction pair material, sliding
The factors such as degree, surface pressing, surface temperature are related.How real simulation rocket sledge sliding block and sliding rail contact environment parameter, quickly,
The accurate coefficient of sliding friction that obtains is one of the device inventions difficult point, and the technology is at present at home also in blank out.
Rocket sledge sliding rail coefficient of sliding friction measuring device can testing friction coefficient with speed, pressure, lubrication, temperature etc.
Factor changing rule, has heavy duty, high-speed test (HST) power of test, and PV value (pressure and speed product) can reach 60MPam/s
More than.Differentiated friction pair, different lubricating conditions, condition of different temperatures lower slider PVvalue testing ability can be met, have and adopt
Many advantages, such as sample rate is high, processing speed is fast, precision is high.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing defects the prior art has, provide a kind of rocket sledge
Sliding rail coefficient of sliding friction measuring device, the coefficient of sliding friction between the rocket rocket sledge sliding block rapidly and accurately surveyed and sliding rail,
The configuration of the present invention is simple, it is easy to operate, measurement accuracy is high, advantage of lower cost.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of rocket sledge sliding rail coefficient of sliding friction measuring device, including extension pulley, counterweight pulley, sliding rail and Vehicular data
It is set in turn on sliding rail according to acquisition and processing system, counterweight pulley and extension pulley, the front end of counterweight pulley and extension pulley
Rear end connection, the bottom of counterweight pulley is equipped with test slide plate, and counterweight pulley is contacted by testing slide plate with sliding rail, counterweight pulley
It is equipped with vertical force sensor between the upper surface of test slide plate, course is equipped between counterweight pulley and the rear end face for testing slide plate
The ground of force snesor, the side of sliding rail is equipped with ground magnet, and the side of counterweight pulley is equally spaced has suddenly along its length
Your formula velocity sensor, when counterweight pulley is by ground magnet, Hall-type speed sensor by ground magnet top, it is vehicle-mounted
Data acquisition and processing system is set on counterweight pulley, vehicle carried data collecting and processing system respectively with vertical force sensor,
Course force snesor and Hall-type speed sensor.
According to above-mentioned technical proposal, counterweight pulley bottom is set there are two position limiting slide block, and two position limiting slide blocks are distributed in test
The front and rear sides of slide plate.
According to above-mentioned technical proposal, position limiting slide block is connect by link bolt with counterweight pulley.
According to above-mentioned technical proposal, the bottom of extension pulley is equipped with position limiting slide block, and position limiting slide block passes through link bolt and leads
Draw coaster connection.
According to above-mentioned technical proposal, the bottom of counterweight pulley is equipped with a pair of of backplate, and a pair of of backplate is set to the two sides of sliding rail.
According to above-mentioned technical proposal, the inside of backplate is equipped with idler wheel, and backplate is contacted by idler wheel with sliding rail.
According to above-mentioned technical proposal, counterweight pulley is equipped with groove, and vehicle carried data collecting and processing system are set to groove
Interior, the upper end of groove is equipped with heat-insulated damping block.
The invention has the following advantages:
By test slide plate simulated rocket rocket sledge sliding block and sliding rail contact environment parameter, environmental parameter is the secondary material that rubs
The factors such as material, sliding speed, surface pressing and surface temperature, vehicle carried data collecting and processing system are examined by course force snesor
The inertia force and frictional force of test slide plate；When counterweight pulley passes through surface-mounted ground magnet, pass through Hall-type speed
Sensor experiences changes of magnetic field and generates voltage signal completion velocity test, through data processing and analysis, rapidly and accurately obtains fiery
The coefficient of sliding friction between arrow rocket sledge sliding block and sliding rail, the configuration of the present invention is simple are easy to operate, measurement accuracy is high, cost phase
It to lower, and has fully considered high speed slide measurement accuracy problem, has preferably resolved interference of the aerodynamic force to measurement parameter
Problem, novel in design, practicability is preferable, and Technique Popularizing prospect of the application is wide, will play a significant role in Rocket sled test；It can
It is applied widely to meet rocket sledge sliding rail PVvalue testing in highest 300m/s speed.
Detailed description of the invention
Fig. 1 is the front view of rocket sledge sliding rail coefficient of sliding friction measuring device in the embodiment of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
In figure, 1- position limiting slide block, 2- counterweight pulley, the course 3- force snesor, 4- vertical force sensor, the heat-insulated vibration damping of 5-
Plate, 6- vehicle carried data collecting and processing system, 7- test slide plate, 8- link bolt, 9- extension pulley, 10- Hall-type speed biography
Sensor, the ground 11- magnet, 12- sliding rail.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Rocket sledge sliding rail coefficient of sliding friction measurement shown in referring to Fig.1~Fig. 2, in one embodiment provided by the invention
Device, including extension pulley 9, counterweight pulley 2, sliding rail 12 and vehicle carried data collecting and processing system 6, counterweight pulley 2 and traction
Coaster 9 is set in turn on sliding rail 12, and the front end of counterweight pulley 2 is connect with the rear end of extension pulley 9, the bottom of counterweight pulley 2
Equipped with test slide plate 7, counterweight pulley 2 is contacted by testing slide plate 7 with sliding rail 12, the upper surface of counterweight pulley 2 and test slide plate 7
Between be equipped with vertical force sensor 4, counterweight pulley 2 and test slide plate 7 rear end face between be equipped with course force snesor 3, sliding rail
The ground of 12 side is equipped with ground magnet 11, and the side of counterweight pulley 2 is equally spaced along its length Hall-type speed
Sensor 10, when counterweight pulley 2 is by ground magnet 11, Hall-type speed sensor 10 by ground magnet 11 surface,
Hall-type speed sensor 10 is oppositely arranged with ground magnet 11, and vehicle carried data collecting and processing system 6 are set to counterweight pulley 2
On, vehicle carried data collecting and processing system 6 respectively with vertical force sensor 4, course force snesor 3 and Hall-type speed sensor
10；By test 7 simulated rocket rocket sledge sliding block of slide plate and 12 contact environment parameter of sliding rail, environmental parameter be friction pair material,
The factors such as sliding speed, surface pressing and surface temperature, vehicle carried data collecting and processing system 6 are examined by course force snesor 3
The inertia force and frictional force of test slide plate 7；When counterweight pulley 2 passes through surface-mounted ground magnet 11, Hall-type speed
Sensor 10 experiences changes of magnetic field and generates voltage signal, and passes to vehicle carried data collecting and the completion velocity test of processing system 6,
In summary vehicle carried data collecting and processing system 6 can obtain test slide plate 7 and sliding rail through data processing and analysis after data
12 coefficients of sliding friction.
Further, sliding rail 12 is layed in ground.
Further, 2 bottom of counterweight pulley is set there are two position limiting slide block 1, and two position limiting slide blocks 1 are distributed in test slide plate 7
Front and rear sides.
Further, position limiting slide block 1 is connect by link bolt 8 with counterweight pulley 2.
Further, the bottom of extension pulley 9 is equipped with position limiting slide block 1, and position limiting slide block 1 is slided by link bolt 8 and traction
Vehicle 9 connects.
Further, the bottom of counterweight pulley 2 is equipped with a pair of of backplate, and a pair of of backplate is set to the two sides of sliding rail 12.
Further, the inside of backplate is equipped with idler wheel, and backplate is contacted by idler wheel with sliding rail 12.
Further, counterweight pulley 2 is equipped with groove, and vehicle carried data collecting and processing system 6 are arranged in the groove, groove
Upper end be equipped with heat-insulated damping block 5.
The working principle of the invention:
Clump weight by loading different quality simulates different normal pressure operating conditions, and by high sampling rate sensor to contact
Face normal pressure is tested, to eliminate the additional friction force formed in loading procedure, in loading area design ball bearing mechanism to disappear
Except measurement error；Test surfaces frictional force passes through course pressure sensor real-time measurement；Speed of related movement is taken by measuring device
The electromagnetic induction sensor of load carries out real-time measurement；Surface lubrication applies lubricant by contact surface and solves；Above-mentioned real-time measurement
Data are transmitted to the acquisition of measuring device exclusive data with unified time origin and processing system carries out later period Analysis of Friction Coefficient.
According to previous research, for rocket sledge sliding rail 12, coefficient of friction actually it is main with sliding block pressure with
Lubrication circumstances are related between speed product, friction are secondary, arrow sledge sliding rail coefficient of friction calculation formula are as follows:
A) coefficient of sliding friction under DRY SLIDING calculates are as follows:
μ (Pv)=0.2379* (Pv)-0.2413
B) dynamic friction coefficient under lubricating condition calculates theoretical model are as follows:
Therefore rocket sledge sliding rail coefficient of sliding friction measuring device is mainly by pressing between the pair (i.e. slide plate and track) that rubs
Strong and Relative sliding velocity test, to obtain coefficient of friction variation tendency under different loads and speed operating condition.
Rocket sledge sliding rail coefficient of sliding friction measuring device of the present invention is connected by extension pulley 9 and rocket sledge (or automobile)
It connects, along rocket sledge sliding rail high speed slide under rocket sledge (or automobile) traction.Counterweight pulley 2 and extension pulley 9 pass through hinged spiral shell
Bolt 8 is connected installation with position limiting slide block 1 on the slide rail, and 2 construction weight of counterweight pulley is by two of them position limiting slide block 1 and test slide plate
7 shareds apply vertical force to test slide plate 7, and vertical force size is measured by vertical force sensor 4；Slide plate 7 is tested to install
In 2 lower part of counterweight pulley, the course force snesor 3 installed on rear end face and counterweight pulley 2 is contacted, and course force snesor 3 measures
Load include test 7 inertia force of slide plate and frictional force；Multiple Hall-type velocity pick-ups are mounted equidistant in 2 vehicle body side of counterweight pulley
Device 10, when counterweight pulley 2 passes through surface-mounted ground magnet 11, Hall-type speed sensor 10 experiences changes of magnetic field generation
Voltage signal completes velocity test；Course force snesor 3, vertical force sensor 4 and Hall-type speed sensor 10 test number
According to simultaneous transmission to vehicle carried data collecting and processing system 6, can be obtained between test slide plate 7 and sliding rail through data processing and analysis
The coefficient of sliding friction.
Above is only presently preferred embodiments of the present invention, and of course, the scope of rights of the present invention cannot be limited by this,
Therefore according to equivalence changes made by scope of the present invention patent, still belong to protection scope of the present invention.
Claims (7)
1. a kind of rocket sledge sliding rail coefficient of sliding friction measuring device, which is characterized in that including extension pulley, counterweight pulley, cunning
Rail and vehicle carried data collecting and processing system, counterweight pulley and extension pulley are set in turn on sliding rail, the front end of counterweight pulley
It is connect with the rear end of extension pulley, the bottom of counterweight pulley is equipped with test slide plate, and counterweight pulley is connect by test slide plate with sliding rail
Touching is equipped with vertical force sensor, the rear end face of counterweight pulley and test slide plate between counterweight pulley and the upper surface for testing slide plate
Between be equipped with course force snesor, the ground of the side of sliding rail is equipped with ground magnet, and the side of counterweight pulley is along its length
Being equally spaced has Hall-type speed sensor, when counterweight pulley is by ground magnet, Hall-type speed sensor corresponding ground magnetic
The top of iron, vehicle carried data collecting and processing system are set on counterweight pulley, vehicle carried data collecting and processing system respectively with
Vertical force sensor, course force snesor and Hall-type speed sensor.
2. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 1, which is characterized in that counterweight pulley bottom
Portion is set there are two position limiting slide block, and two position limiting slide blocks are distributed in the front and rear sides of test slide plate.
3. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 2, which is characterized in that position limiting slide block is logical
Link bolt is crossed to connect with counterweight pulley.
4. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 1, which is characterized in that extension pulley
Bottom is equipped with position limiting slide block, and position limiting slide block is connect by link bolt with extension pulley.
5. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 1, which is characterized in that counterweight pulley
Bottom is equipped with a pair of of backplate, and a pair of of backplate is set to the two sides of sliding rail.
6. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 5, which is characterized in that the inside of backplate
Equipped with idler wheel, backplate is contacted by idler wheel with sliding rail.
7. rocket sledge sliding rail coefficient of sliding friction measuring device according to claim 1, which is characterized in that on counterweight pulley
Equipped with groove, vehicle carried data collecting and processing system are arranged in the groove, and the upper end of groove is equipped with heat-insulated damping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301627.5A CN109142213B (en) | 2018-11-02 | 2018-11-02 | Rocket sled slide rail sliding friction coefficient measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301627.5A CN109142213B (en) | 2018-11-02 | 2018-11-02 | Rocket sled slide rail sliding friction coefficient measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109142213A true CN109142213A (en) | 2019-01-04 |
| CN109142213B CN109142213B (en) | 2021-03-23 |
Family
ID=64807445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811301627.5A Active CN109142213B (en) | 2018-11-02 | 2018-11-02 | Rocket sled slide rail sliding friction coefficient measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142213B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504600A (en) * | 2020-11-30 | 2021-03-16 | 中国工程物理研究院总体工程研究所 | Guide sliding shoe of rocket sled |
| CN112683775A (en) * | 2020-11-18 | 2021-04-20 | 中交公路规划设计院有限公司 | Steel shell concrete immersed tube tunnel push-out type final joint sliding track friction force testing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168164C2 (en) * | 1998-12-22 | 2001-05-27 | Пиранишвили Георгий Константинович | Friction coefficient meter |
| JP2004037148A (en) * | 2002-07-01 | 2004-02-05 | Mitsubishi Alum Co Ltd | Sliding testing method |
| CN101339112A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool guiding rail friction wear testing machine |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN204586524U (en) * | 2015-03-03 | 2015-08-26 | 陕西理工学院 | Based on the automatic speed limit device of car of Hall element |
| CN107255618A (en) * | 2017-07-17 | 2017-10-17 | 北京强度环境研究所 | A kind of Large Launch Vehicle binding mechanism top load lubrication friction pilot system |
| CN207336263U (en) * | 2017-05-27 | 2018-05-08 | 南京工程学院 | Rolling guide joint dynamic Contact stiffness test platform |
| CN208060057U (en) * | 2018-01-08 | 2018-11-06 | 中广核核电运营有限公司 | Sliding block slide plate friction experiment device |
-
2018
- 2018-11-02 CN CN201811301627.5A patent/CN109142213B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168164C2 (en) * | 1998-12-22 | 2001-05-27 | Пиранишвили Георгий Константинович | Friction coefficient meter |
| JP2004037148A (en) * | 2002-07-01 | 2004-02-05 | Mitsubishi Alum Co Ltd | Sliding testing method |
| CN101339112A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool guiding rail friction wear testing machine |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN204586524U (en) * | 2015-03-03 | 2015-08-26 | 陕西理工学院 | Based on the automatic speed limit device of car of Hall element |
| CN207336263U (en) * | 2017-05-27 | 2018-05-08 | 南京工程学院 | Rolling guide joint dynamic Contact stiffness test platform |
| CN107255618A (en) * | 2017-07-17 | 2017-10-17 | 北京强度环境研究所 | A kind of Large Launch Vehicle binding mechanism top load lubrication friction pilot system |
| CN208060057U (en) * | 2018-01-08 | 2018-11-06 | 中广核核电运营有限公司 | Sliding block slide plate friction experiment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683775A (en) * | 2020-11-18 | 2021-04-20 | 中交公路规划设计院有限公司 | Steel shell concrete immersed tube tunnel push-out type final joint sliding track friction force testing system |
| CN112504600A (en) * | 2020-11-30 | 2021-03-16 | 中国工程物理研究院总体工程研究所 | Guide sliding shoe of rocket sled |
| CN112504600B (en) * | 2020-11-30 | 2022-09-27 | 中国工程物理研究院总体工程研究所 | Guide sliding shoe of rocket sled |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109142213B (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674578B (en) | Bullet train runs the detection method of dynamic performance state | |
| CN104164829A (en) | Pavement smoothness detection method based on mobile terminal and intelligent pavement information real-time monitoring system | |
| CN108519268B (en) | Device and method for detecting abrasion particles under lubricating condition | |
| CN101581613B (en) | Dynamometer for automobile chassis and measurement and control method thereof | |
| CN109635386A (en) | A kind of bridge move vehicle Load Identification Methods | |
| CN109142213A (en) | Rocket sledge sliding rail coefficient of sliding friction measuring device | |
| CN108562536A (en) | Ground surface material friction performance testing device and method | |
| Wei et al. | Safety analysis of high speed trains under cross winds using indirect wheel-rail force measuring method | |
| CN103290768A (en) | Flatness Measuring Instrument and Measuring Method | |
| CN103471869B (en) | Brake cooling performance testing method | |
| Gao et al. | Optimization of the tire ice traction using combined Levenberg–Marquardt (LM) algorithm and neural network | |
| Bosso et al. | Experimental setup of an innovative multi-axle roller rig for the investigation of the adhesion recovery phenomenon | |
| CN103376173B (en) | The measuring method of internal friction resistance during a kind of vehicle sliding | |
| Lupker et al. | Numerical prediction of car tire wear | |
| CN202372437U (en) | Road friction coefficient measurement device | |
| Gil et al. | Passenger train slipstream characterization using a rotating rail rig | |
| US11125552B2 (en) | Method for the rapid detection of the geometric accuracy of the linear motion axis of an NC machine tool | |
| CN113420362B (en) | Damage identification method and device suitable for time-varying medium-small span bridge | |
| CN1982861A (en) | Inertia determination of automobile | |
| CN103293007B (en) | A kind of agricultural vehicle performance detection method and detecting instrument thereof | |
| CN203365300U (en) | Pavement friction coefficient detection device | |
| CN205280381U (en) | Light -duty unmanned car parameter testing platform | |
| Guo et al. | Experimental research on friction of vehicle tire rubber | |
| Glišović et al. | Design of vehicle road testing method for determination of brake pad friction characteristics | |
| Prasad et al. | Study on correlation of commercial vehicle axle response with road profile for ISO road class categorization and durability analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |