CN208688828U - A kind of multi-functional steel rail grinding experimental rig - Google Patents
A kind of multi-functional steel rail grinding experimental rig Download PDFInfo
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- CN208688828U CN208688828U CN201821502252.4U CN201821502252U CN208688828U CN 208688828 U CN208688828 U CN 208688828U CN 201821502252 U CN201821502252 U CN 201821502252U CN 208688828 U CN208688828 U CN 208688828U
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Abstract
The utility model discloses a kind of multi-functional steel rail grinding experimental rigs, including lathe spindle, workbench, acting device, air compressor machine, grinding wheel sample and the variable-frequency motor being mounted in lathe motor housing, the output shaft of variable-frequency motor is equipped with synchronous pulley, and it is connected by the synchronous pulley of synchronous belt and lathe spindle, lathe spindle is fixed by Lathe Spindle Box and the other end is equipped with scroll chuck, the outer surface of scroll chuck is connected with plate-like rail workpiece and steel rail grinding grinding wheel, and the other end of plate-like rail workpiece centre axis is connected with tail stock, the bottom of tail stock is fixedly connected with lathe bed, workbench is connected by bolt with sliding box.The utility model can simulate different steel rail grinding modes, and the polishing test of different polishing pressure, revolving speed, grinding wheel parameter can be carried out, it provides convenience to explore steel rail grinding mechanism, certain theoretical basis is also provided for live steel rail grinding, and provide theoretical direction for the development of grinding stone.
Description
Technical field
The utility model relates to wheel grinding experimental rig technical field, specially a kind of multi-functional steel rail grinding test dress
It sets.
Background technique
Rail is the important bearing carrier of the railway system, can inevitably be generated during military service wave mill, gouge, crackle,
Many defects such as fat edges at present mainly conserve rail using rail grinding train on route, and rail grinding train is main
There are traditional rail grinding train and passive seamed high-speed steel rail to polish two kinds of train, traditional rail grinding train is to pass through motor
Driving grinding wheel high speed rotation simultaneously grinding wheel is loaded using hydraulic device, at the same time polish train with certain speed (most
Big 18km/h) traveling, to achieve the purpose that remove Rail Surface disease, the passive grinding machine of high speed is by the periphery and steel of grinding wheel
Rail with certain load contact and make grinding wheel central axis and rail length direction be kept at an angle it is poor (generally 45 ° or
135 °), therefore grinding wheel in Rail Surface does non-pure rolling to the passive rail grinding train high speed (60~80km/h) of high speed when driving
Rotation, so that the regular of rail polishes and safeguards using the speed difference between grinding wheel and rail to achieve the purpose that rail grinding,
Be conducive to improve the comfortableness and security of train operation, while polishing just is carried out to rail in the rail rail level crack initiation phase
It except hardened layer, can effectively extend the service life of rail, reduce economic loss caused by rail failure.
Steel rail grinding maintenance technology development in China's is later, technically falls behind relatively, although China is in traditional active steel
It has made significant headway on rail polishing train technical, but for steel rail grinding strategy and scheme etc., has been still within spy
The rope stage instructs the steel rail grinding operation at scene without specific professional standard, meanwhile, steel rail grinding skill passive for high speed
Art is only grasped by a handful of countries such as Germany, and the technological accumulation of China at present in this respect is considerably less, and there are one can not be ignored
The fact, it is exactly the matched grinding wheel of rail grinding train, China is all a large amount of dependence imports at present, the reason is that the sand of domestic production
Wheel spread in performance is uneven, grinding capacity is weaker, service life is short, and it is therefore necessary to the Principles of Grinding and Cutting to steel rail grinding to grind
Study carefully, to polishing parameter (polishing pressure, grinding stone revolving speed, polishing speed etc.), grinding wheel parameter (abrasive species, abrasive material proportion, abrasive grain
Degree, abrasive concentration, bonding agent intensity, wire feeding etc.) etc. explored, to obtain higher grinding efficiency for field polish
More preferably Rail Surface quality provides theoretical foundation, and also the development for steel rail grinding grinding wheel proposes theoretical direction.
Currently, steel rail grinding test can carry out field test on test circuit, it can also be in the experimental bench in laboratory
Upper development, although live steel rail grinding test result is the most reliable, the higher cost of live steel rail grinding test, the period compared with
Length, the acquisition of bruting process data are also inconvenient, and for the testing equipment in laboratory, it is essentially all to be ground for single polishing
Stone design, and workpiece is larger is unfavorable for subsequent analysis is not easy to further to the analysis of grinding principle and grinding wheel performance
Evaluation, for this purpose, it is proposed that a kind of multi-functional steel rail grinding experimental rig.
Utility model content
The purpose of this utility model is to provide a kind of multi-functional steel rail grinding experimental rigs, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of multi-functional steel rail grinding experimental rig,
Including lathe spindle, workbench, acting device, air compressor machine, grinding wheel sample and the variable-frequency motor being mounted in lathe motor housing, institute
The output shaft for stating variable-frequency motor is equipped with synchronous pulley, and is connected by the synchronous pulley of synchronous belt and lathe spindle, lathe master
Axis is fixed by Lathe Spindle Box and the other end is equipped with scroll chuck, and the outer surface of scroll chuck is connected with plate-like rail
Workpiece and steel rail grinding grinding wheel, and the other end of plate-like rail workpiece centre axis is connected with tail stock, tail stock
Bottom is fixedly connected with lathe bed, and the workbench is connected by bolt with sliding box, and work is connected on the right side of workbench
Make platform jigsaw, and acting device is mounted on the table top of workbench and workbench jigsaw composition, and central axes are beaten perpendicular to rail
The end face of grinding abrasive disk, acting device are connected with pin-shaped rail sample by rail specimen holder, and the air compressor machine is actuation
Device provides gas source, and the on-off for the solenoid valve control air-flow being connected with air compressor machine.
Preferably, the plate-like rail workpiece is that whole block material is intercepted from steel billet, is carried out again and steel after completing the process
The identical measure of rail heat treatment process is handled, and is made every effort to plate-like rail workpiece and is reached and the consistent mechanical performance of rail and microcosmic
Tissue.
Preferably, the variable-frequency motor high speed rotation and lathe spindle is driven to rotate, acting device will after solenoid valves
Grinding wheel sample is fitted on high-speed rotating plate-like rail workpiece with certain pressure, and grinding wheel sample is flexibly connected by screw
There is grinding wheel specimen holder.
Preferably, the acting device concrete composition are as follows: air compressor machine is successively connected with gas source three linked piece and solenoid valve, and electricity
The gas outlet of magnet valve is connected with pressure regulator valve, solenoid valve come out air inlet, escape pipe respectively with the air inlet of cylinder, gas outlet phase
Even, cylinder is mounted on cylinder mounting plate by bolt, and cylinder mounting plate is bolted on workbench, and the work of cylinder
Plug push rod is successively connected with floating junction, contour bolt, spring end cap, damping spring and pressure sensor, and pressure sensor is logical
It crosses bolt and is flexibly connected tangible piece, shape block two sides are successively connected with sliding block, guide rail and support rib, and support rib passes through
Bolt is fixed on the table, and the inside of shape block is successively connected with crossed roller slide unit and specimen clamping block, and sample fills
There are threaded holes for the centre of fixture block is connected with bellows sensor, bellows to install rail specimen holder, specimen clamping block upper end
The upper end of sensor is connected with the crossbeam of sensor, and crossbeam is bolted with shape block.
Preferably, the variable-frequency motor and solenoid valve are electrically connected with control system, pressure sensor and bellows sensing
Device is electrically connected with signal acquiring system, and air compressor machine and distribution box are electrically connected.
Preferably, described there are two types of polishings mode (A, B), and under two kinds of polishing modes, pressure sensor be can detecte
It polishes in bruting process pressure, bellows sensor can detecte the grinding force in bruting process.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model to reequiping, turns waste into wealth to waste and old lathe, and the thick and heavy stabilization of lathe structure, improves test
Stability and repeatability, clamping is carried out to steel rail grinding grinding wheel and plate-like rail workpiece 7 using scroll chuck, makes to fill
It presss from both sides, dismantle very convenient, save the extensive work time, while there are two types of the modes of polishing for its tool: motor drives steel rail grinding sand
High speed rotation is taken turns, revolving speed reaches as high as 3000r/min, and the traditional rail of this kind of pattern simulation is actively polished, and motor drives plate-like
The rotation of rail Work piece high-speed, highest can simulate the polishing speed of 100Km/h, this kind of passive bruting process of pattern simulation high speed,
Both the above operating mode, the grinding mechanism for exploring steel rail grinding for testing machine are provided convenience, while being also the development of grinding wheel
Thinking is provided with evaluation, while people can also carry out the test of different rotating speeds, different pressures and different size grinding wheel, and
And polishing pressure and grinding force in bruting process can be acquired in real time, and after polishing test, it can be to grinding wheel and rail
Surface state analyzed, explore bruting process in grinding principle and grinding stone grinding performance.
Detailed description of the invention
Fig. 1 is the utility model high speed polishing structural schematic diagram；
Fig. 2 is the utility model pin disc type polishing structural schematic diagram；
Fig. 3 is the utility model acting device structural schematic diagram；
Fig. 4 is rail sample and fixture schematic diagram under the utility model pin disc type polishing mode；
Fig. 5 is the utility model high speed polishing mode lower grinding wheel sample and fixture schematic diagram；
Fig. 6 is the relationship of collected normal pressure and frictional force and polishing time under the utility model pin disc type polishing mode
Figure.
In figure: 1 variable-frequency motor, 2 synchronous belts, 3 synchronous pulleys, 4 lathe spindles, 5 Lathe Spindle Box, 6 scroll chucks, 7 disks
Shape rail workpiece, 8 workbench, 9 tail stocks, 10 lathe beds, 11 acting devices, 11a support rib, 11b crossed roller slide unit,
The high bolts such as 11c bellows sensor, 11d guide rail, 11e, 11f damping spring, 11g floating junction, 11h cylinder mounting plate, 11i
Cylinder, 11j spring end cap, 11k pressure sensor, 11l sliding block, 11m U-shaped block, 11n specimen clamping block, 11p crossbeam, 12 skies
Press, 13 solenoid valves, 14 sliding boxes, 15 steel rail grinding grinding wheels, 16 workbench jigsaw, 17 pin-shaped rail samples, the examination of 18 rail
Sample fixture, 19 grinding wheel samples, 20 grinding wheel specimen holders, 21 pressure regulator valves, 22 gas source three linked pieces.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
Please refer to Fig. 1, Fig. 3 and Fig. 5, a kind of multi-functional steel rail grinding experimental rig, including lathe spindle 4, workbench 8,
Acting device 11, air compressor machine 12, grinding wheel sample 19 and the variable-frequency motor 1 being mounted in lathe motor housing, the variable-frequency motor 1
Output shaft is equipped with synchronous pulley 3, and is connect by synchronous belt 2 with the synchronous pulley 3 of lathe spindle 4, and lathe spindle 4 passes through
Lathe Spindle Box 5 is fixed and the other end is equipped with scroll chuck 6, and the outer surface of scroll chuck 6 is connected with plate-like rail work
Part 7 and steel rail grinding grinding wheel 15, plate-like rail workpiece 7 be whole block material is intercepted from steel billet, complete the process after carry out again with
The identical measure of heat-treatment of rail technique is handled, make every effort to plate-like rail workpiece 7 reach with the consistent mechanical performance of rail and
Microstructure, and the other end of 7 central axis of plate-like rail workpiece is connected with tail stock 9, the bottom of tail stock 9 is fixed
It is connected with lathe bed 10, the workbench 8 is connected by bolt with sliding box 14, and the right side of workbench 8 is connected with work
Platform jigsaw 16, and acting device 11 is mounted on the table top that workbench 8 and workbench jigsaw 16 form, and central axes perpendicular to
The end face of steel rail grinding grinding wheel 15, acting device 11 are connected with pin-shaped rail sample 17, institute by rail specimen holder 18
Stating air compressor machine 12 is the on-off that the solenoid valve 13 that acting device 11 provides gas source, and is connected with air compressor machine 12 controls air-flow, frequency conversion
1 high speed rotation of motor simultaneously drives lathe spindle 4 to rotate, and acting device 11 is by grinding wheel sample 19 with certain after solenoid valve 13 is powered
Pressure is fitted on high-speed rotating plate-like rail workpiece 7, and grinding wheel sample 19 is connected with grinding wheel specimen holder by screw
Tool 20,11 concrete composition of acting device are as follows: air compressor machine 12 is successively connected with gas source three linked piece 22 and solenoid valve 13, and solenoid valve
13 gas outlet is connected with pressure regulator valve 21, solenoid valve 13 come out air inlet, outlet PU pipe respectively with the air inlet of cylinder 11i,
Gas outlet is connected, and cylinder 11i is mounted on cylinder mounting plate 11h by bolt, and cylinder mounting plate 11h is bolted on work
Make on platform 8, and the piston push rod of cylinder 11i successively with floating junction 11g, contour bolt 11e, spring end cap 11j, damping spring
11f is connected with pressure sensor 11k, and pressure sensor 11k is connected with U-shaped block 11m by bolt, the U-shaped two sides block 11m according to
It is secondary to be connected with sliding block 11l, guide rail 11d and support rib 11a, and support rib 11a is bolted on workbench 8
On, the inside of U-shaped block 11m is successively connected with crossed roller slide unit 11b and specimen clamping block 11n, and specimen clamping block 11n
There are threaded holes for centre is connected with bellows sensor 11c to install rail specimen holder 18, the upper end specimen clamping block 11n,
The upper end of bellows sensor 11c is connected with the crossbeam 11p of sensor, and crossbeam 11p and U-shaped block 11m is bolted, frequency conversion
Motor 1 and solenoid valve 13 are electrically connected with control system, and pressure sensor 11k and bellows sensor 11c are and signal acquisition
System is electrically connected, and air compressor machine 12 and distribution box are electrically connected, under A kind polishing mode: by the center of plate-like rail workpiece 7
Axis carries out clamping using scroll chuck 6, and sliding box 14 is moved to lathe Far Left and keeps certain with plate-like rail workpiece 7
Then gap is fixed 14 position of sliding box by the rocking bar that sliding box 14 carries, shift tail stock 9 onto left end and will return
Turn top and shake out the other side for withstanding on 7 central axis of plate-like rail workpiece, and by the rocking bar of tail stock 9 by tail stock 9 and
Top position is fixed, and acting device 11 is moved on to the direction perpendicular to the central axis of plate-like rail workpiece 7 and makes its central axes
It is aligned with plate-like rail workpiece 7, the threaded one end of grinding wheel specimen holder 20 is screwed into the centre bore of specimen clamping block, then will
Grinding wheel sample 19 is fixed in grinding wheel specimen holder 20, presses the switch of air compressor machine 12, operates air compressor machine 12 in advance, guarantees gas
Amount is sufficient, then presses the trigger switch of solenoid valve 13, stretches out the push rod of cylinder 11i, adjusts cylinder 11i by pressure regulator valve 21
Output pressure, regulate after disconnect solenoid valve 13 switch, make the pusher retracted of cylinder 11i, then pass through variable-frequency motor 1
Control system operate lathe spindle 4 by specified speed, after stabilization of speed, press the trigger switch of solenoid valve 13, cylinder
The push rod of 11i stretches out and contacts grinding wheel sample 19 with high-speed rotating plate-like rail workpiece 7 and start to polish, and reaches specified
The trigger switch that solenoid valve 13 is disconnected after the polishing time, makes the pusher retracted of cylinder 11i, polishing terminates, and then passes through frequency conversion
The control system of motor 1 makes 1 slow machine halt of variable-frequency motor, and in the process, pressure sensor 11k can detecte in bruting process
Polishing pressure, bellows sensor 11c can detecte the grinding force in bruting process.
Embodiment two:
Please refer to Fig. 2, Fig. 3 and Fig. 4, a kind of multi-functional steel rail grinding experimental rig, including lathe spindle 4, workbench 8,
Acting device 11, air compressor machine 12, grinding wheel sample 19 and the variable-frequency motor 1 being mounted in lathe motor housing, the variable-frequency motor 1
Output shaft is equipped with synchronous pulley 3, and is connect by synchronous belt 2 with the synchronous pulley 3 of lathe spindle 4, and lathe spindle 4 passes through
Lathe Spindle Box 5 is fixed and the other end is equipped with scroll chuck 6, and the outer surface of scroll chuck 6 is connected with plate-like rail work
Part 7 and steel rail grinding grinding wheel 15, plate-like rail workpiece 7 be whole block material is intercepted from steel billet, complete the process after carry out again with
The identical measure of heat-treatment of rail technique is handled, make every effort to plate-like rail workpiece 7 reach with the consistent mechanical performance of rail and
Microstructure, and the other end of 7 central axis of plate-like rail workpiece is connected with tail stock 9, the bottom of tail stock 9 is fixed
It is connected with lathe bed 10, the workbench 8 is connected by bolt with sliding box 14, and the right side of workbench 8 is connected with work
Platform jigsaw 16, and acting device 11 is mounted on the table top that workbench 8 and workbench jigsaw 16 form, and central axes perpendicular to
The end face of steel rail grinding grinding wheel 15, acting device 11 are connected with pin-shaped rail sample 17, institute by rail specimen holder 18
Stating air compressor machine 12 is the on-off that the solenoid valve 13 that acting device 11 provides gas source, and is connected with air compressor machine 12 controls air-flow, frequency conversion
1 high speed rotation of motor simultaneously drives lathe spindle 4 to rotate, and acting device 11 is by grinding wheel sample 19 with certain after solenoid valve 13 is powered
Pressure is fitted on high-speed rotating plate-like rail workpiece 7, and grinding wheel sample 19 is connected with grinding wheel specimen holder by screw
Tool 20,11 concrete composition of acting device are as follows: air compressor machine 12 is successively connected with gas source three linked piece 22 and solenoid valve 13, and solenoid valve
13 gas outlet is connected with pressure regulator valve 21, solenoid valve 13 come out air inlet, outlet PU pipe respectively with the air inlet of cylinder 11i,
Gas outlet is connected, and cylinder 11i is mounted on cylinder mounting plate 11h by bolt, and cylinder mounting plate 11h is bolted on work
Make on platform 8, and the piston push rod of cylinder 11i successively with floating junction 11g, contour bolt 11e, spring end cap 11j, damping spring
11f is connected with pressure sensor 11k, and pressure sensor 11k is connected with U-shaped block 11m by bolt, the U-shaped two sides block 11m according to
It is secondary to be connected with sliding block 11l, guide rail 11d and support rib 11a, and support rib 11a is bolted on workbench 8
On, the inside of U-shaped block 11m is successively connected with crossed roller slide unit 11b and specimen clamping block 11n, and specimen clamping block 11n
There are threaded holes for centre is connected with bellows sensor 11c to install rail specimen holder 18, the upper end specimen clamping block 11n,
The upper end of bellows sensor 11c is connected with the crossbeam 11p of sensor, and crossbeam 11p and U-shaped block 11m is bolted, frequency conversion
Motor 1 and solenoid valve 13 are electrically connected with control system, and pressure sensor 11k and bellows sensor 11c are and signal acquisition
System is electrically connected, and air compressor machine 12 and distribution box are electrically connected, under B kind polishing mode: being beaten using scroll chuck 6 rail
Grinding abrasive disk 15 carries out clamping, and sliding box 14 is moved to lathe Far Left and reserves enough rotary spaces for scroll chuck 6, so
14 position of sliding box is fixed by the rocking bar that sliding box 14 carries afterwards, shifts tail stock 9 onto right end, and pass through lathe tail
The rocking bar of seat 9 is fixed by tail stock 9, acting device 11 is moved on to the position perpendicular to 15 end face of steel rail grinding grinding wheel, by steel
Rail specimen holder 18 is mounted on specimen clamping block, and then pin-shaped rail sample 17 is mounted in rail specimen holder 18, is pressed
The switch of lower air compressor machine 12, operates air compressor machine 12 in advance, guarantees that tolerance is sufficient, then presses the trigger switch of solenoid valve 13,
The push rod of cylinder 11i is stretched out, the output pressure of cylinder 11i is adjusted by pressure regulator valve 21, disconnects solenoid valve 13 after regulating
Switch, make the pusher retracted of cylinder 11i, then make lathe spindle 4 by specified speed by the control system of variable-frequency motor 1
It operates, after stabilization of speed, then presses the trigger switch of solenoid valve 13, stretch out the push rod of cylinder 11i and make grinding wheel sample 19
It is contacted with high-speed rotating plate-like rail workpiece 7 and starts to polish, the polishing time for reaching specified disconnects solenoid valve 13 later
Trigger switch makes the pusher retracted of cylinder 11i, and polishing terminates, and makes variable-frequency motor 1 finally by the control system of variable-frequency motor 1
Slow machine halt, in the process, pressure sensor 11k can detecte pressure of polishing in bruting process, and bellows sensor 11c can be with
Detect the grinding force in bruting process.
In use, turning waste into wealth to waste and old lathe to reequiping, and the thick and heavy stabilization of lathe structure, test is improved
Stability and repeatability carry out clamping to steel rail grinding grinding wheel 15 and plate-like rail workpiece 7 using scroll chuck 6, make to fill
It presss from both sides, dismantle very convenient, save the extensive work time, while there are two types of the modes of polishing for its tool: motor drives steel rail grinding sand
High speed rotation is taken turns, revolving speed reaches as high as 3000r/min, and the traditional rail of this kind of pattern simulation is actively polished, and motor drives plate-like
The rotation of rail Work piece high-speed, highest can simulate the polishing speed of 100Km/h, this kind of passive bruting process of pattern simulation high speed,
Both the above operating mode, the grinding mechanism for exploring steel rail grinding for testing machine are provided convenience, while being also the development of grinding wheel
Thinking is provided with evaluation, while people can also carry out the test of different rotating speeds, different pressures and different size grinding wheel, and
And polishing pressure and grinding force in bruting process can be acquired in real time, and after polishing test, it can be to grinding wheel and rail
Surface state analyzed, explore bruting process in grinding principle and grinding stone grinding performance.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of multi-functional steel rail grinding experimental rig, including lathe spindle (4), workbench (8), acting device (11), pneumatics
Machine (12), grinding wheel sample (19) and the variable-frequency motor (1) being mounted in lathe motor housing, it is characterised in that: the variable-frequency motor
(1) output shaft is equipped with synchronous pulley (3), and is connect by synchronous belt (2) with the synchronous pulley (3) of lathe spindle (4), vehicle
Bed main shaft (4) is fixed by Lathe Spindle Box (5) and the other end is equipped with scroll chuck (6), and the outer surface of scroll chuck (6) is living
It is dynamic to be connected with plate-like rail workpiece (7) and steel rail grinding grinding wheel (15), and the other end activity of plate-like rail workpiece (7) central axis
Be connected with tail stock (9), the bottom of tail stock (9) is fixedly connected with lathe bed (10), the workbench (8) by bolt with
Sliding box (14) is connected, and is connected on the right side of workbench (8) workbench jigsaw (16), and acting device (11) is mounted on
On the table top of workbench (8) and workbench jigsaw (16) composition, and central axes are made perpendicular to the end face of steel rail grinding grinding wheel (15)
Dynamic device (11) are connected with pin-shaped rail sample (17) by rail specimen holder (18), and the air compressor machine (12) is actuation
Device (11) provides gas source, and the on-off for solenoid valve (13) the control air-flow being connected with air compressor machine (12).
2. a kind of multi-functional steel rail grinding experimental rig according to claim 1, it is characterised in that: the plate-like rail work
Part (7) is that whole block material is intercepted from steel billet, carries out measure identical with heat-treatment of rail technique after completing the process again and carries out
Processing, makes every effort to plate-like rail workpiece (7) and reaches and the consistent mechanical performance of rail and microstructure.
3. a kind of multi-functional steel rail grinding experimental rig according to claim 1, it is characterised in that: the variable-frequency motor
(1) high speed rotation and drive lathe spindle (4) rotate, solenoid valve (13) be powered after acting device (11) by grinding wheel sample (19) with
Certain pressure is fitted on high-speed rotating plate-like rail workpiece (7), and grinding wheel sample (19) is connected with by screw
Grinding wheel specimen holder (20).
4. a kind of multi-functional steel rail grinding experimental rig according to claim 1, it is characterised in that: the acting device
(11) concrete composition are as follows: air compressor machine (12) is successively connected with gas source three linked piece (22) and solenoid valve (13), and solenoid valve (13)
Gas outlet is connected with pressure regulator valve (21), solenoid valve (13) come out air inlet, outlet PU pipe respectively with the air inlet of cylinder (11i),
Gas outlet is connected, and cylinder (11i) is mounted on cylinder mounting plate (11h) by bolt, and cylinder mounting plate (11h) is solid by bolt
Be scheduled on workbench (8), and the piston push rod of cylinder (11i) successively with floating junction (11g), contour bolt (11e), spring terminal
Lid (11j), damping spring (11f) are connected with pressure sensor (11k), and pressure sensor (11k) is connected with U by bolt
Shape block (11m), the two sides U-shaped block (11m) are successively connected with sliding block (11l), guide rail (11d) and support rib (11a), and prop up
Stake rib plate (11a) is bolted on workbench (8), and it is sliding that the inside of U-shaped block (11m) is successively connected with crossed roller
Platform (11b) and specimen clamping block (11n), and there are threaded holes to install rail specimen holder for the centre of specimen clamping block (11n)
Have (18), the upper end specimen clamping block (11n) is connected with bellows sensor (11c), the upper end of bellows sensor (11c) and sensor
Crossbeam (11p) be connected, and crossbeam (11p) is bolted with U-shaped block (11m).
5. a kind of multi-functional steel rail grinding experimental rig according to claim 1, it is characterised in that: the variable-frequency motor
(1) it is electrically connected with control system with solenoid valve (13), pressure sensor (11k) and bellows sensor (11c) are and signal
Acquisition system is electrically connected, and air compressor machine (12) and distribution box are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821502252.4U CN208688828U (en) | 2018-09-14 | 2018-09-14 | A kind of multi-functional steel rail grinding experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821502252.4U CN208688828U (en) | 2018-09-14 | 2018-09-14 | A kind of multi-functional steel rail grinding experimental rig |
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| Publication Number | Publication Date |
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| CN208688828U true CN208688828U (en) | 2019-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
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