CN208270358U - A kind of high speed and high pressure frictional wear experiment platform - Google Patents
A kind of high speed and high pressure frictional wear experiment platform Download PDFInfo
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- CN208270358U CN208270358U CN201721123018.6U CN201721123018U CN208270358U CN 208270358 U CN208270358 U CN 208270358U CN 201721123018 U CN201721123018 U CN 201721123018U CN 208270358 U CN208270358 U CN 208270358U
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Abstract
The utility model discloses a kind of high speed and high pressure frictional wear experiment platforms, including experiment porch mechanism, hydraulic system and electric-control system, the experiment porch mechanism includes casing, the upper end of the casing is equipped with cabinet upper end cover, hub bearing is installed on the lateral wall of the opening of the cabinet upper end cover, the outer sheath of the hub bearing is equipped with belt hub, and the outer sheath of the belt hub is equipped with belt；The hydraulic system includes the speed governing valve two connecting with main shaft cooling-part, and the other end of the speed governing valve two is connected with pressure reducing valve；The electric-control system includes main circuit and PLC control circuit.The utility model not only may be implemented in the test of the friction and wear behavior in different medium environment, it can also be achieved the friction and wear behavior test under different rotating speeds and different loads, due to using hydraulic cooling technology and variable-frequency control technique, the revolving speed of experiment porch and the adaptability of load are greatly increased.
Description
Technical field
The utility model relates to high speed and high pressure frictional wear experiment platform technology fields more particularly to a kind of high speed and high pressure to rub
Experiment porch is damaged in scouring.
Background technique
Friction-wear test, measurement material are resisted a kind of testing of materials of wear resistance, can be compared by this test
The wearability superiority and inferiority of material.Wear test is more complicated than the conventional testing of materials.Firstly the need of the specific works for considering components
Condition simultaneously determines wear form, then selectes suitable test method, to make test result and actual result more coincide, mill
Disfigurement formula has abrasive wear, adhesive wear, contact fatique wear, fretting wear, cavitation erosion etc..However it is past under the conditions of real-world operation
It is past to occur a kind of wear form incessantly, such as adhesive wear and cavitation erosion may occur simultaneously in high-power diesel engine bearing shell.With other
Test is compared, the factors such as wear test is loaded, speed, temperature, surrounding medium, surface roughness, lubrication and coupling material
It influences bigger.Experimental condition should be as consistent with physical condition as possible, the reliability of ability guarantee test result, current friction mill
The experimental facilities manufacturing cost of damage is high, it is even more important that the mode that upper friction member fixture is connect with main shaft is not used to transmit
Biggish revolving speed has relative rotation between upper friction member and fixture, has certain influence for the measurement result of revolving speed；Except this it
Outside, the loading method that feed screw nut is usually used in frictional wear experiment platform is commonly used, it is also less by the way of frequency control,
Thus, the adaptability of revolving speed and load is not strong, does not adapt to the requirement of high speed and high pressure friction and wear behavior test.
Utility model content
It is not good enough that purpose of the utility model is to solve detection effects in the prior art, does not adapt to high speed and high pressure and rubs
Scouring is damaged the problem of requirement of performance test, and a kind of high speed and high pressure frictional wear experiment platform proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of high speed and high pressure frictional wear experiment platform, including experiment porch mechanism, hydraulic system and electric-control system, it is described
Experiment porch mechanism includes casing, and the upper end of the casing is equipped with cabinet upper end cover, the cabinet upper end cover
There are two hub bearings, the outer sheath of the hub bearing to be equipped with belt hub, the belt for installing on the lateral wall of opening
The outer sheath of wheel hub is equipped with belt, and the belt is connected with first motor far from one end of belt hub, in the first motor
Equipped with the pulley rotation axis being rotatablely connected with belt, the upper end of the belt hub is equipped with sleeve, sets on the upside of the sleeve
Have a fastening round nut, it is described have be inserted with main shaft in the middle part of fastening round nut, the main shaft is through sleeve, belt hub and extends
To the inside of casing, the cabinet upper end cover is connected with the junction of casing by multiple fastening hex nuts, institute
The inner sidewall for stating casing opening is equipped with the big bearing connecting with main shaft, and the downside of the big bearing is cooling equipped with main shaft
Component is equipped with sealing ring, opens up respectively on the side wall of the main shaft cooling-part between the main shaft cooling-part and big bearing
There are a cooling-part oil liquid entrance and the outlet of cooling-part oil liquid, the lower end of the main shaft is equipped with spanner mouth, under the spanner mouth
Side is equipped with upper friction member clamping device, is equipped with friction member, the upper friction member on the downside of the upper friction member clamping device
It is in contact to generate friction under the action of loading system with lower friction member, the lower friction member is mounted on the base, institute
It states also equipped with lubricant oil reservoir on pedestal, the outside of the lubricant oil reservoir is equipped with heating device, the bottom of the lubricant oil reservoir
Portion offers media outlet slot, and top pillar is also equipped on the pedestal, and the top pillar and the pressure sensor being mounted on fuselage exist
Contact is generated during friction testing, the downside of the pedestal is equipped with multiple pedestal alignment bearings, and the downside of the pedestal is also set
There is connection supporting element, pedestal spring bearing, the middle part dress of the connection supporting element are equipped between connection supporting element and the pedestal
Equipped with pedestal coupling spindle, the downside of the connection supporting element is equipped with load piston, and pedestal coupling spindle is also connect with load piston,
The lower surface of the casing is equipped with cabinet lower cover, and the middle part of the cabinet lower cover is equipped with hydraulic loaded oil liquid entrance；
Lower friction member is not installed in below friction member, the two be usually it is discontiguous, only under the action of loading system, above rub
Wiping part is just moved downward to be in contact with lower friction member, and then generates friction.
The hydraulic system includes the speed governing valve two connecting with main shaft cooling-part, the other end connection of the speed governing valve two
There is a pressure reducing valve, the pressure reducing valve is connected separately with fine filter, pressure gauge, overflow valve and suitable far from one end of main shaft cooling-part
Sequence valve, the sequence valve are connected separately with 3-position-3-way solenoid directional control valve and 3-position 4-way electromagnetic switch far from one end of pressure reducing valve
Valve, the 3-position-3-way solenoid directional control valve are connected with speed governing valve one, the 3-position 4-way electromagnetic switch far from one end of sequence valve
Valve is connected with pressure switch and hydraulic cylinder far from one end of sequence valve, and the fine filter is equipped with outer far from one end of pressure reducing valve
Intermeshing gear pump, the external gear rotary pump are connected with the second motor by tooth form yielding coupling；
The electric-control system includes main circuit and PLC control circuit, and the main circuit includes motor M1, motor M2, three-phase
Inverter output filters, three phase mains electromagnetic interface filter, frequency converter, zero phase reactor and breaker, the motor M1 and first
Motor electrical connection, the motor M2 are electrically connected with the second motor.
Preferably, the cabinet upper end cover and cabinet lower cover pass through fastening bolt and are threadedly coupled with casing.
Preferably, friction force sensor is installed on the lateral wall of the cabinet shell.
Preferably, the pressure sensor is mounted on external fuselage.
Preferably, the external gear rotary pump is connected with oil absorption filter far from one end of fine filter.The oil suction
Filter is connected separately with fuel tank, liquidometer and air cleaner.
In the utility model, the improvement of mechanical, electrical, liquid integrated technology is done to common frictional wear experiment platform, not only
It may be implemented in the friction and wear behavior test in different medium environment, can also be achieved the friction under different rotating speeds and different loads
Polishing machine test greatly increases the revolving speed of experiment porch due to using hydraulic cooling technology and variable-frequency control technique
With the adaptability of load, maximum speed up to 3000r/min, highest loading force up to 10kN, meanwhile, the degree of automation
It is greatly improved.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of high speed and high pressure frictional wear experiment platform structural schematic diagram；
Fig. 2 be the utility model proposes a kind of high speed and high pressure frictional wear experiment platform electric-control system main circuit diagram；
Fig. 3 be the utility model proposes a kind of high speed and high pressure frictional wear experiment platform electric-control system PLC control electricity
Lu Tu；
Fig. 4 be the utility model proposes a kind of high speed and high pressure frictional wear experiment Platform Hydraulic System working principle
Figure.
In figure: 1 fastening round nut, 2 main shafts, 3 sleeves, 4 belt hubs, 5 hub bearings, 6 belts, 7 cabinet upper end covers, 8
Fastening bolt, 9 casings, 10 main shaft cooling-parts, 11 cooling-part oil liquid entrances, friction member clamping device on 12, on 13
Friction member (explanation, be not upper friction member fixture), 14 friction force sensors, 15 pedestal alignment bearings, 16 connection supporting elements, 17 add
Carry piston, 18 cabinet lower covers, 19 hydraulic loaded oil liquid entrances, 20 pedestal coupling spindles, 21 pedestal spring bearings, the measurement of 22 temperature
Device, 23 pedestals, 24 top pillars, 25 pressure sensors, 26 media outlet slots, (explanation is not lower friction member folder to 27 lower friction members
Tool), 28 heating devices, 29 lubricant oil reservoirs, 30 spanner mouths, the outlet of 31 cooling-part oil liquid, 32 sealing rings, 33 big bearings, 34
Fasten hex nut, 35 pulley rotation axis, 36 first motors, 37 fuselages, 38 fuel tanks, 39 oil absorption filters, 40 liquidometers,
41 air cleaners, 42 second motors, 43 tooth form yielding couplings, 44 external gear rotary pumps, 45 fine filters, 46 pressure gauges,
47 overflow valves, 48 sequence valves, 49 pressure switches, 50 3-position-3-way solenoid directional control valves, 51 speed governing valves one, 52 3-position 4-ways electricity
Magnetic reversal valve, 53 speed governing valves two, 54 pressure reducing valves, 55 hydraulic cylinders.
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.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-4, a kind of high speed and high pressure frictional wear experiment platform, including experiment porch mechanism, hydraulic system and electricity
Control system, experiment porch mechanism include casing 9, and the upper end of casing 9 is equipped with cabinet upper end cover 7, cabinet upper end cover 7
Opening lateral wall on installing there are two hub bearing 5, the outer sheath of hub bearing 5 is equipped with belt hub 4, belt pulley
The outer sheath of hub 4 is equipped with belt 6, and belt 6 is connected with first motor 36 far from one end of belt hub 4, sets in first motor 36
There is the pulley rotation axis 35 being rotatablely connected with belt 6, the upper end of belt hub 4 is equipped with sleeve 3, and the upside of sleeve 3 is equipped with tight
Gu round nut 1 has the middle part of fastening round nut 1 to be inserted with main shaft 2, main shaft 2 is through sleeve 3, belt hub 4 and extends to cabinet
The junction of the inside of shell 9, cabinet upper end cover 7 and casing 9 is connected by multiple fastening hex nuts 34, outside cabinet
The inner sidewall of 9 opening of shell is equipped with the big bearing 33 connecting with main shaft 2, and the downside of big bearing 33 is equipped with main shaft cooling-part
10, it is equipped with sealing ring 32 between main shaft cooling-part 10 and big bearing 33, is offered respectively on the side wall of main shaft cooling-part 10
Cooling-part oil liquid entrance 11 and cooling-part oil liquid outlet 31, the lower end of main shaft 2 are equipped with spanner mouth 30, the downside of spanner mouth 30
Equipped with upper friction member clamping device 12, the downside of upper friction member clamping device 12 is equipped with friction member 13, upper friction member 13 with
Lower friction member 27 is in contact to generate friction under the action of loading system, and lower friction member (27) is mounted on pedestal 23
On, lubricant oil reservoir 29 is also housed, the outside of lubricant oil reservoir 29 is equipped with heating device 28, lubricant oil reservoir 29 on pedestal 23
Bottom offers media outlet slot 26, and top pillar 24, top pillar 24 and the pressure sensor 25 being mounted on fuselage are also equipped on pedestal
Contact is generated during friction testing, the downside of pedestal 23 is equipped with multiple pedestal alignment bearings 15, and the downside of pedestal 23 is also set
There is connection supporting element 16, couple and be equipped with pedestal spring bearing 21 between supporting element 16 and pedestal 23, couples the middle part of supporting element 16
It is installed with pedestal coupling spindle 20, the downside of connection supporting element 16 is equipped with load piston 17, and pedestal coupling spindle 20 is also lived with load
17 connection of plug, the lower surface of casing 9 are equipped with cabinet lower cover 18, and the middle part of cabinet lower cover 18 is equipped with hydraulic loaded oil liquid
Entrance 19, cabinet upper end cover 7 and cabinet lower cover 18 are threadedly coupled by fastening bolt 8 with casing 9, cabinet shell 9
Lateral wall on be installed with friction force sensor 14, pressure sensor 25 is mounted on external fuselage 37；
Hydraulic system includes the speed governing valve 2 53 connecting with main shaft cooling-part 10, and the other end of speed governing valve 2 53 is connected with
Pressure reducing valve 54, pressure reducing valve 54 are connected separately with fine filter 45, pressure gauge 46, overflow valve far from one end of main shaft cooling-part 10
47 and sequence valve 48, sequence valve 48 be connected separately with 3-position-3-way solenoid directional control valve 50 and three four far from one end of pressure reducing valve 54
Electric change valve 52,3-position-3-way solenoid directional control valve 50 are connected with speed governing valve 1 far from one end of sequence valve 48, and three four
Electric change valve 52 is connected with pressure switch 49 and hydraulic cylinder 55 far from one end of sequence valve 48, and fine filter 45 is separate to be subtracted
One end of pressure valve 54 is equipped with external gear rotary pump 44, and external gear rotary pump 44 is connected with second by tooth form yielding coupling 43
Motor 42, oil absorption filter 39 are connected separately with fuel tank 38, liquidometer 40 and air cleaner 41, and external gear rotary pump 44 is separate
One end of fine filter 45 is connected with oil absorption filter 39；
Electric-control system includes main circuit and PLC control circuit, and main circuit includes that motor M1, motor M2, three phase converter are defeated
Filter, three phase mains electromagnetic interface filter, frequency converter, zero phase reactor and breaker, motor M1 are electrically connected with first motor 36 out
It connects, motor M2 is electrically connected with the second motor 42.
In the utility model, first motor 36 it is electric after, drive pulley rotation axis 35 to rotate, while driving belt 6
And main shaft 2 rotates, main shaft 2 and belt hub 4 are fixed by a pair of oppositely oriented round nut 1 and sleeve 3；Cabinet upper end cover 7
It is fixed by fastening bolt 8 with lower cover 18 and casing 9.The frictional heat generated during running at high speed due to main shaft 2
Larger, for this purpose, special use main shaft cooling-part 10, the oil liquid of hydraulic system output enters the cavity of the main shaft cooling-part 10
In, to surround the submergence higher section of 2 calorific value of main shaft, the heat of main shaft generation is taken away by the Rapid Circulation of oil liquid, from
And achieve the effect that cooling.Cooling-part oil liquid entrance 11 and cooling-part oil liquid outlet 31 are the oil liquid of the cooling-part respectively
Entrance and exit.Upper friction member clamping device 12 is inserted into the lower end of main shaft 2, by under the ellipse around boss at the top of it, with main shaft 2
The slotted engagement at end can be separated upper friction member clamping device 12 together with upper friction member 13 and main shaft 2 by spanner mouth 30.It is taking turns
Hub axle hold 5 and big bearing 33 support under, the high speed rotation under the drive of belt 6 of main shaft 2, friction member clamping device 12 in drive
With upper 13 high speed rotation of friction member, rub to be generated with lower friction member 27.Upper friction member 13 is mounted on clamping device by pin
On 12, lower friction member 27 is mounted on pedestal 23 by pin.14 be friction force sensor, between real-time measurement friction member
Frictional force；22 be temperature measuring device, the temperature for real-time measurement friction process；25 be the pressure being fixed on fuselage
Sensor, for measuring the torque of rotation axis, pressure sensor need to cooperate with top pillar 24 when measurement.Lubricant oil reservoir 29 can be used for
Different oils are contained, the top of pedestal 23 is mounted on by external screw thread, for realizing upper and lower in differentiated friction media environment
Friction between friction member.28 be heating device, for heating to medium, to realize in the friction media environment of different temperatures
Frictional experiment test between upper and lower friction member, for media outlet slot 26 for friction media to be discharged, which is divided into two
Branch: one is cooling branch, is made of pressure reducing valve 17, speed governing valve 16 and main shaft cooling-part 10；One is to flow through sequence
The load branch of valve 48, the branch route sequence valve 48,3-position-3-way solenoid directional control valve 50, speed governing valve 1,3-position 4-way electromagnetism
Reversal valve 52, pressure switch 49 and hydraulic cylinder 55 are constituted.Two branches influence each other in order to prevent, especially load branch
Influence when road is in unloading condition to cooling branch, before oil liquid enters load branch, spy is provided with sequence valve 48.Entirely
The gear oil pump feed that hydraulic system is driven by motor has been provided with the overflow valve 47 of safeguard protection effect in the outlet of gear pump；
In order to guarantee the cleaning of oil liquid, oil absorption filter 39 and fine filter 45 are respectively arranged with into and out of hydraulic fluid port in gear pump；In order to
The outlet pressure of gear pump is monitored, pressure gauge 46 is provided with；Liquidometer 40 and air cleaner 41 are additionally provided on fuel tank, it is preceding
Person is used to monitor the liquid level of fuel tank inner fluid, and the latter is for preventing the sundries in air from entering in the oil liquid of fuel tank, due to cooling
Oil pressure needed for branch is not high, for this purpose, needing to depressurize the oil pressure for entering the branch first, for this purpose, special be provided with pressure reducing valve
54, when oil liquid is after the decompression of pressure reducing valve 54, in entrance before main shaft cooling-part 10, need to be carried out by speed governing valve 53
The adjusting of flow, thus achieve the purpose that control cooling velocity, when 3-position-3-way solenoid directional control valve 50 is in middle position,
Fuel tank is directly entered by the middle position of 3-position-3-way solenoid directional control valve 50 by the hydraulic oil of sequence valve 48, that is, is in Median Function
Unloading condition, at this point, hydraulic cylinder 55 is in off working state；When 50 left side electromagnet of 3-position-3-way solenoid directional control valve obtain it is electric
And when being in left position working condition, if 52 left side electromagnet of three-position four-way electromagnetic directional valve obtains electric and is in left position working condition
When, the piston of hydraulic cylinder 55 just moves upwards, and implements load function, can be controlled at this time by adjusting the openings of sizes of speed governing valve
Loading velocity (when the opening of speed governing valve tunes up, increased by the flow of 3-position-3-way solenoid directional control valve 50 and speed governing valve, then
Flow into three-position four-way electromagnetic directional valve 52 and hydraulic cylinder 55 is reduced by, and loading velocity is caused to decline；Conversely, loading velocity
Rise)；When 3-position-3-way solenoid directional control valve 50 works in left position, if three-position four-way electromagnetic directional valve 52 works in right position,
The piston of hydraulic cylinder 55 just declines, that is, is detached from upper friction member 13 shown in FIG. 1 and lower friction member 27, without fretting wear
Experiment, the piston rotation perdurability of hydraulic cylinder 55 can be also adjusted immediately by speed governing valve；When 3-position-3-way solenoid directional control valve 50
When working in right position, oil liquid enters 3-position-3-way solenoid directional control valve 50 and is just ended, at this point, three-position four-way electromagnetic directional valve 52
It should be controlled by control system to be in middle position state (three-position four-way electromagnetic directional valve 52 is operable with left position or the right side at this time
Position, can also realize the raising and lowering of 55 piston of hydraulic cylinder, but its raising and lowering is not controlled by the adjusting of regulating valve, because without
Recommend such working condition), under the action of 52 Median Function of three-position four-way electromagnetic directional valve, hydraulic cylinder 55 is into and out of oil circuit quilt
Cut-off is in state of pressure keeping, at this point, loading force maintains a definite value, that is, realizes the friction mill under certain definite value loading force
Damage realizes that load oil pressure at this time is monitored by pressure switch.Due to the pressure maintaining of 52 Median Function of three-position four-way electromagnetic directional valve
Characteristic is determined by the structural behaviour of three-position four-way electromagnetic directional valve 52 itself, after a period of time, the pressure of hydraulic cylinder 55
Power will be because structure leakage will be gradually reduced, and when being reduced to the pressure value of the setting of pressure switch 49, pressure switch 49 will be issued
Electric signal, come control three-position four-way electromagnetic directional valve 52 and 3-position-3-way solenoid directional control valve 50 it is electric (if necessary to increase pressure
Power continues to test, and it is electric that 3-position-3-way solenoid directional control valve 50 and three-position four-way electromagnetic directional valve 52 are all that left position obtains；If necessary
Stop experiment, 50 left position of 3-position-3-way solenoid directional control valve obtains electric, and the right position of three-position four-way electromagnetic directional valve 52 obtains electric), frequency converter tune
Fast circuit is mainly made of the main circuit of frequency converter, frequency control motor M, circuit breaker Q F, contactor KM etc..Motor M1 drives skin
Band wheel shaft, then pass through V belt translation driving spindle；Motor M2 drives the motor of hydraulic pump, controls the opening and closing of hydraulic circuit, PLC
With frequency converter in such a way that control terminal is connect.Input terminal connection control button, alarm and the power supply of PLC, output terminal
Connect intermediate relay coil, indicator light and power supply.Intermediate relay coil KA2, KA3 pass through its normally opened contact and master respectively
The coil of circuit contactor connects, and then controls the on-off of frequency converter main power source and the start-stop of spindle motor, hydraulic pump motor.Become
The analog input signal of frequency device and the analog output module of PLC are connected with twisted pair shielded cable.After circuit breaker Q F is connected,
Upper indicator light is bright, KM1 and KM2 it is electric, KM2 electric shock closure, shaft rotating motor startup button SB1 connect when, KA2 obtain it is electric, together
When KA2 electric shock closure, frequency converter starting, while KM1 electric shock closure, motor M1 obtains electric, and spindle motor start indicator lamp is bright.Cage knob
After SB4 is connected, KA3 obtains electric, while KA3 electric shock closure, and hydraulic pump motor M2 obtains electric, hydraulic pump startup.3-position-3-way solenoid valve
When reversal valve left position works, SB5 is connected, and KA4 obtains electric, and 3-position-3-way solenoid valve reversal valve left position work light is bright；Three three
When three-way electromagnetic valve reversal valve left position stops working, SB6 is connected, KA4 power-off, the work instruction of 3-position-3-way solenoid valve reversal valve left position
Lamp goes out；When the right position of 3-position-3-way solenoid valve reversal valve works, SB7 is connected, and KA5 obtains electric, the right position of 3-position-3-way solenoid valve reversal valve
Work light is bright；When the right position of 3-position-3-way solenoid valve reversal valve stops working, SB8 is connected, KA5 power-off, 3-position-3-way electromagnetism
Valve reversal valve left position work light goes out；When the one of electric shock of SB6 and SB8 is connected, 3-position-3-way solenoid valve reversal valve is just located
In middle position state.When three position four-way electromagnetic valve reversal valve left position works, SB9 is connected, and KA6 obtains electric, three position four-way electromagnetic valve commutation
Valve left position work light is bright；When three position four-way electromagnetic valve reversal valve left position stops working, SB10 is connected, KA6 power-off, and three four
Three-way electromagnetic valve reversal valve left position work light goes out；When the right position of three position four-way electromagnetic valve reversal valve works, SB11 is connected, and KA7 is obtained
Electricity, the right position work light of three position four-way electromagnetic valve reversal valve are bright；When the right position of three position four-way electromagnetic valve reversal valve stops working,
SB12 is connected, and KA7 power-off, three position four-way electromagnetic valve reversal valve left position work light goes out；The one of electric shock of SB10 and SB12
When connection, three position four-way electromagnetic valve reversal valve is at middle position state.
Control power supply auxiliary input terminals R0, T0 are connected to the outlet side of breaker, to prevent frequency converter defencive function dynamic
Frequency converter switch disconnects the control circuit power loss for making frequency converter when making.PLC input terminal control the energization of each solenoid directional control valve with
No, the corresponding position indicator light of control is bright, changes simultaneously the working position of reversal valve.Analog input mModule will run each sensor in scene
Signal and motor output speeds feedback signal carry out A/D conversion and send to host computer, realize closing for the shaft rotating motor speed of service
The real time monitoring of ring control and running environment.Filter capacitor is connected to the input side of frequency converter, to reduce AM radio bands
The noise of (1MHz or less).
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of high speed and high pressure frictional wear experiment platform, including experiment porch mechanism, hydraulic system and electric-control system, the reality
Testing platform mechanism includes casing (9), which is characterized in that the upper end of the casing (9) is equipped with cabinet upper end cover
(7), there are two hub bearing (5), the hub bearings (5) for installing on the lateral wall of the opening of the cabinet upper end cover (7)
Outer sheath be equipped with belt hub (4), the outer sheath of the belt hub (4) is equipped with belt (6), and the belt (6) is far from skin
One end with wheel hub (4) is connected with first motor (36), and the first motor (36) is equipped with the skin being rotatablely connected with belt (6)
The upper end of band wheel shaft (35), the belt hub (4) is equipped with sleeve (3), and the upside of the sleeve (3), which is equipped with, fastens circle spiral shell
Female (1), it is described have main shaft (2) are inserted in the middle part of fastening round nut (1), the main shaft (2) runs through sleeve (3), belt hub
(4) and the inside of casing (9) is extended to, the junction of the cabinet upper end cover (7) and casing (9) passes through multiple tight
Gu hex nut (34) connects, the inner sidewall of casing (9) opening is equipped with the big bearing connecting with main shaft (2)
(33), the downside of the big bearing (33) is equipped with main shaft cooling-part (10), the main shaft cooling-part (10) and big bearing
(33) sealing ring (32) are equipped between, offer cooling-part oil liquid entrance respectively on the side wall of the main shaft cooling-part (10)
(11) and cooling-part oil liquid exports (31), and the lower end of the main shaft (2) is equipped with spanner mouth (30), under the spanner mouth (30)
Side is equipped with upper friction member clamping device (12), is equipped with friction member (13) on the downside of the upper friction member clamping device (12),
The upper friction member (13) and lower friction member (27) are in contact to generate friction under the action of loading system, rub under described
It wipes part (27) to be mounted on pedestal (23), lubricant oil reservoir (29) also is housed on the pedestal (23), the lubricant oil reservoir
(29) outside is equipped with heating device (28), and the bottom of the lubricant oil reservoir (29) offers media outlet slot (26), described
It is also equipped on pedestal top pillar (24), the top pillar (24) and the pressure sensor (25) being mounted on fuselage are in friction testing process
Middle generation contact, the downside of the pedestal (23) are equipped with multiple pedestal alignment bearings (15), and the downside of the pedestal (23) is also set
Have connection supporting element (16), is equipped with pedestal spring bearing (21) between the connection supporting element (16) and pedestal (23), it is described
It connects and is installed with pedestal coupling spindle (20) in the middle part of supporting element (16), the downside of connection supporting element (16) is equipped with load piston
(17), and pedestal coupling spindle (20) is also connect with load piston (17), and the lower surface of the casing (9) is equipped with cabinet lower end
It covers (18), the middle part of the cabinet lower cover (18) is equipped with hydraulic loaded oil liquid entrance (19)；
The hydraulic system includes the speed governing valve two (53) connecting with main shaft cooling-part (10), the speed governing valve two (53) it is another
One end is connected with pressure reducing valve (54), and the pressure reducing valve (54) is connected separately with smart filtering far from the one end of main shaft cooling-part (10)
Device (45), pressure gauge (46), overflow valve (47) and sequence valve (48), the sequence valve (48) one end far from pressure reducing valve (54) point
It is not connected with 3-position-3-way solenoid directional control valve (50) and three-position four-way electromagnetic directional valve (52), the 3-position-3-way solenoid directional control valve
(50) one end far from sequence valve (48) is connected with speed governing valve one (51), and the three-position four-way electromagnetic directional valve (52) is far from sequence
One end of valve (48) is connected with pressure switch (49) and hydraulic cylinder (55), and the fine filter (45) is far from pressure reducing valve (54)
One end is equipped with external gear rotary pump (44), and the external gear rotary pump (44) is connected with second by tooth form yielding coupling (43)
Motor (42)；
The electric-control system includes main circuit and PLC control circuit, and the main circuit includes motor M1, motor M2, three phase variable frequency
Device output filter, three phase mains electromagnetic interface filter, frequency converter, zero phase reactor and breaker, the motor M1 and first motor
(36) it is electrically connected, the motor M2 is electrically connected with the second motor (42).
2. a kind of high speed and high pressure frictional wear experiment platform according to claim 1, which is characterized in that the cabinet upper end
Lid (7) and cabinet lower cover (18) are threadedly coupled by fastening bolt (8) with casing (9).
3. a kind of high speed and high pressure frictional wear experiment platform according to claim 1, which is characterized in that the casing
(9) friction force sensor (14) are installed on lateral wall.
4. a kind of high speed and high pressure frictional wear experiment platform according to claim 1, which is characterized in that the pressure sensing
Device (25) is mounted on external fuselage (37).
5. a kind of high speed and high pressure frictional wear experiment platform according to claim 1, which is characterized in that the external toothing tooth
Wheel pump (44) is connected with oil absorption filter (39) far from the one end of fine filter (45)；The oil absorption filter (39) is separately connected
There are fuel tank (38), liquidometer (40) and air cleaner (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123018.6U CN208270358U (en) | 2017-09-04 | 2017-09-04 | A kind of high speed and high pressure frictional wear experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123018.6U CN208270358U (en) | 2017-09-04 | 2017-09-04 | A kind of high speed and high pressure frictional wear experiment platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270358U true CN208270358U (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721123018.6U Withdrawn - After Issue CN208270358U (en) | 2017-09-04 | 2017-09-04 | A kind of high speed and high pressure frictional wear experiment platform |
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| Country | Link |
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| CN (1) | CN208270358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478531A (en) * | 2017-09-04 | 2017-12-15 | 贵州大学 | A kind of high speed and high pressure frictional wear experiment platform and its electrohydraulic control system |
-
2017
- 2017-09-04 CN CN201721123018.6U patent/CN208270358U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478531A (en) * | 2017-09-04 | 2017-12-15 | 贵州大学 | A kind of high speed and high pressure frictional wear experiment platform and its electrohydraulic control system |
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Granted publication date: 20181221 Effective date of abandoning: 20230502 |