CN205898599U - Servo loading device of high temperature friction testing machine - Google Patents
Servo loading device of high temperature friction testing machine Download PDFInfo
- Publication number
- CN205898599U CN205898599U CN201620792207.1U CN201620792207U CN205898599U CN 205898599 U CN205898599 U CN 205898599U CN 201620792207 U CN201620792207 U CN 201620792207U CN 205898599 U CN205898599 U CN 205898599U
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- Prior art keywords
- heating furnace
- friction
- amplifier
- load bar
- feedback potentiometer
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract 3
- 238000009413 insulation Methods 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a servo loading device of high temperature friction testing machine, including base, heating furnace, friction disk holder, friction disk, transmission shaft, spiral cooling tube, three -phase asynchronous motor, hold -in range, the servo electric loading device of electric liquid, crossbeam, vertical pole, the servo electric loading device of electricity liquid includes pneumatic cylinder, load bar, friction head, electro hydraulic servo valve, controller, amplifier, feedback potentiometer, instruction potentiometre, load bar one end and pneumatic cylinder fixed connection, the load bar other end is connected with the friction head, and feedback potentiometer's cursor slide and load bar are connected, and feedback potentiometer is connected with the amplifier, and feedback potentiometer and instruction potentiometre is connected, and the instruction potentiometre is connected with the amplifier, and the amplifier is connected with the controller, and the controller is connected with electro hydraulic servo valve, and electro hydraulic servo valve is connected with the pneumatic cylinder, the utility model discloses simple structure can provide stable apply pressure in a linear section, satisfy experimental demand, improves experiment test accuracy.
Description
Technical field
This utility model belongs to material wear test technical field, particularly a kind of servo loading of high-temperature friction testing machine
Device.
Background technology
The various aspects of fretting wear problem exists in human material activity.Automobile, generating, equipment, metallurgy, railway,
The machinery of each side such as aerospace, electronics and agricultural machinery all has the problem of tribology in a large number.According to estimates, the whole world there are about 1/2-
1/3 energy consumes in a variety of manners in friction, if taking correct measure in terms of tribology it is possible to greatly save
Energy resource consumption.Abrasion is one of 3 kinds of main failure modes of component of machine, and the economic loss being led to is huge, about
80% machine components are had to lead to lose efficacy due to various abrasions.Progress in particular with material progress and industrial technological modernization
Development, the application of plant equipment generally tend to heavy duty, at a high speed, high efficiency, how to control and improve mechanical friction
Wear condition, improve its service life and functional reliability, it has also become the problem that Mechanical Industry Technology personnel must pay close attention to, and promote
So that it is studied constantly and go deep into and develop.In recent decades, although abrasion tester and test method have larger development,
These testing machines are mostly or by enterprise and research worker according to job demand and actual condition self design, such as high
Warm abrasive tester, high temperature friction and wear testing machine of suitable macromolecule and its composite materials testing etc..Only minority
Testing machine is to be manufactured and supply by special testing machine factory or instrument manufacturing company, and these testing machines mostly structure is multiple
Miscellaneous, expensive, this illustrates the complexity of wear problem and carries out the where the shoe pinches of laboratory wear test research.
The Chinese patent of Patent No. 201310311447.6 discloses a kind of high temperature friction and wear testing machine, this testing machine
In only frictional disk be located at heating intracavity, and pallet is located at outside opening, and the surface-coated of pallet has a thermal insulation layer, during test,
Heat in heating chamber is difficult to be transferred in rotating shaft, and the temperature of rotating shaft is relatively low, is not susceptible to bending；Offer cold in axle sleeve
But chamber one and cooling chamber two, can be by the heat of the generation that rubs between rotating shaft and axle sleeve, and the heat passing to rotating shaft in heating chamber
Amount rapidly conducts, it is to avoid rotating shaft and axle sleeve produce damage because overheated；The top of load bar is installed with one and is used for containing
Put the scale pan of counterweight, after being designed with scale pan, conveniently according to different loading capacities, load bar is implemented to load.But this test
Machine has some deficiency following: 1. frictional disk is located at heating intracavity, and pallet is located at outside opening, and this heats cavity configuration interior temperature degree atmosphere
It is more easily damaged, temperature fluctuation is big, affect test result；2. drivewheel is connected by a root bark band with driven pulley, and belt is permissible
Relax load impacting and operate steadily, noiseless, but the flexible slip of belt transmission and skidding, efficiency is low and can not keep
Accurately gear ratio, that is, main shaft can not be kept to rotate with certain speed；3. use counterweight to load and produce pressure, this pressure
Can not be the pressure of LINEAR CONTINUOUS, sometimes because there is no suitable counterweight it is impossible to find the required pressure of test.
Utility model content
The purpose of this utility model is to provide a kind of high-temperature friction testing machine that can provide linearly interval frictional force to add
Carry and put.
The technical solution realizing this utility model purpose is:
A kind of servo-loading unit of high-temperature friction testing machine, including base, heating furnace, friction disk holder, frictional disk,
Power transmission shaft, spiral cooling tube, threephase asynchronous, Timing Belt, electro-hydraulic servo electrical loading apparatus, crossbeam, vertical pole, described heating
Stove is fixed on base table top, and heating furnace outer surface is provided with heat-insulation layer, is provided with thermal insulation layer, heating furnace between heating furnace and base table top
Bottom is provided with hole, and the main shaft upper end of power transmission shaft is pierced into heating-furnace intracavity from heating furnace base apertures, rub disk holder with
The main shaft upper end of power transmission shaft is fixedly connected, and friction disk holder is suspended in the furnace chamber of heating furnace, and friction disk holder is fixed
Frictional disk, main shaft lower end is provided with driven synchronizing wheel, and threephase asynchronous is fixed on base, and threephase asynchronous is provided with master
Dynamic synchronizing wheel, active synchronization wheel is connected with driven synchronizing wheel by Timing Belt, and spiral cooling tube is wound in outside the bearing of power transmission shaft,
Vertical pole lower end is connected with base table top, and vertical pole upper end is connected with crossbeam one end, and the crossbeam other end is provided with electro-hydraulic servo electricity and loads dress
Put；
Described electro-hydraulic servo electrical loading apparatus include hydraulic cylinder, load bar, friction head, electrohydraulic servo valve, controller, amplification
Device, feedback potentiometer, command potential device, described load bar one end is fixedly connected with hydraulic cylinder, the load bar other end and friction head
Connect, the cursor slide of feedback potentiometer is connected with load bar, feedback potentiometer is connected with amplifier, feedback potentiometer and command potential
Device connects, and command potential device is connected with amplifier, and amplifier is connected with controller, and controller is connected with electrohydraulic servo valve, electro-hydraulic
Servo valve is connected with hydraulic cylinder.
This utility model compared with prior art, its remarkable advantage:
(1) the servo-loading unit small volume of this utility model high-temperature friction testing machine, lightweight, inertia is little, reliability
Good, output power；Rigidity big (i.e. output displacement is little by outer load effect) sets any pressure value in necessarily interval, fixed
Position is quick and precisely.
(2) whole friction disk holder and frictional disk are placed in heating intracavity by this utility model, can be provided with one relatively
Stable temperature atmosphere, improves test effect.
(3) this utility model adopts copper spiral cooling tube, when being passed through the clear water of flowing in cooling tube, can effectively drop
Underneath drive axle temperature degree, can by the heat of the generation that rubs between rotating shaft and axle sleeve, and pass in heating chamber rotating shaft heat fast
Conduct, it is to avoid rotating shaft and axle sleeve produce damage because overheated fastly.
(4) this utility model adopts motor to drive power transmission shaft by Timing Belt, can relax load impacting and run flat
Surely, noiseless, and toothed belt transmission is nonelastic slides and skid, efficiency high and also accurate gear ratio can be kept, that is, can
Main shaft is kept to rotate with a certain velocity-stabilization.
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Brief description
Fig. 1 is the general structure schematic diagram of high-temperature friction testing machine.
Fig. 2 is the structural representation of this utility model servo-loading unit.
Specific embodiment
In conjunction with Fig. 1:
A kind of servo-loading unit of high-temperature friction testing machine of this utility model, including base 1, heating furnace 2, friction disk folder
Holder 3, frictional disk 4, power transmission shaft 5, spiral cooling tube 6, threephase asynchronous 7, Timing Belt 8, electro-hydraulic servo electrical loading apparatus
9th, crossbeam 10, vertical pole 11, described heating furnace 2 is fixed on base 1 table top, and heating furnace 2 outer surface is provided with heat-insulation layer, heating furnace 2 with
It is provided with thermal insulation layer 12, heating furnace 2 bottom is provided with hole, and main shaft 51 upper end of power transmission shaft 5 is from heating furnace 2 bottom between base 1 table top
Portion's hole penetrates in heating furnace 2 furnace chamber, and friction disk holder 3 is fixedly connected with main shaft 51 upper end of power transmission shaft 5, and frictional disk clamps
Device 3 is suspended in the furnace chamber of heating furnace 2, and friction disk holder 3 fixes frictional disk 4, and main shaft 51 lower end is provided with driven synchronizing wheel
53, threephase asynchronous 7 is fixed on base 1, and threephase asynchronous 7 is provided with active synchronization wheel 71, active synchronization wheel 71
Be connected with driven synchronizing wheel 53 by Timing Belt 8, spiral cooling tube 6 is wound in outside the bearing 52 of power transmission shaft 5, vertical pole 11 lower end with
Base 1 table top connects, and vertical pole 11 upper end is connected with crossbeam 10 one end, and crossbeam 10 other end is provided with electro-hydraulic servo electrical loading apparatus 9；
Threephase asynchronous 7 passes through Timing Belt 8 and drives friction disk holder 3 and frictional disk 4 to turn at a high speed in the furnace chamber of heating furnace 2
Dynamic, heating furnace 2 manufactures the required temperature atmosphere of experiment.
Described electro-hydraulic servo electrical loading apparatus 9 include hydraulic cylinder 91, load bar 92, friction head 93, electrohydraulic servo valve 94, control
Device 95 processed, amplifier 96, feedback potentiometer 97, command potential device 98, described load bar 92 one end is fixedly connected with hydraulic cylinder 91,
Load bar 92 other end is connected with friction head 93, and the cursor slide of feedback potentiometer 97 is connected with load bar 92, feedback potentiometer 97 with
Amplifier 96 connects, and feedback potentiometer 97 is connected with command potential device 98, and command potential device 98 is connected with amplifier 96, amplifier
96 are connected with controller 95, and controller 95 is connected with electrohydraulic servo valve 94, and electrohydraulic servo valve 94 is connected with hydraulic cylinder 91.
Described load bar 92 other end is connected with friction head 93 by screw thread, is easy to the replacing of friction head 93.
The work process of the servo-loading unit of this high-temperature friction testing machine:
Its effect that is connected with load bar 92 of the cursor slide of feedback potentiometer 97 is that change load bar 92 position is converted into electricity
The change of pressure.(reflection control object position is inclined with the location of instruction for potential difference between feedback potentiometer 97 and command potential device 98
Difference) amplified device 96 passes to controller 95 after amplifying, and controller 95 is added on hydraulic pressure signal to electrohydraulic servo valve 94, to promote hydraulic pressure
Cylinder 91 piston drive load bar 92 moves to eliminating bias direction；When deviation is zero, stops driving, thus make load bar 92
Position always press command potential device 98 give rule change.
Claims (2)
1. a kind of servo-loading unit of high-temperature friction testing machine it is characterised in that: include base (1), heating furnace (2), friction
Disk holder (3), frictional disk (4), power transmission shaft (5), spiral cooling tube (6), threephase asynchronous (7), Timing Belt (8), electricity
Liquid servo electrical loading apparatus (9), crossbeam (10), vertical pole (11), described heating furnace (2) is fixed on base (1) table top, heating furnace
(2) outer surface is provided with heat-insulation layer, is provided with thermal insulation layer (12) between heating furnace (2) and base (1) table top, and heating furnace (2) bottom sets
Hole, main shaft (51) upper end of power transmission shaft (5) is pierced in heating furnace (2) furnace chamber from heating furnace (2) base apertures, and rub disk folder
Holder (3) is fixedly connected with main shaft (51) upper end of power transmission shaft (5), and friction disk holder (3) is suspended in the furnace chamber of heating furnace (2)
Interior, frictional disk (4) is fixed in friction disk holder (3), and main shaft (51) lower end is provided with driven synchronizing wheel (53), three-phase asynchronous electric
Machine (7) is fixed on base (1), and threephase asynchronous (7) is provided with active synchronization wheel (71), and active synchronization wheel (71) passes through same
Step band (8) is connected with driven synchronizing wheel (53), and spiral cooling tube (6) is wound in the bearing (52) of power transmission shaft (5) outward, vertical pole (11)
Lower end is connected with base (1) table top, and vertical pole (11) upper end is connected with crossbeam (10) one end, and crossbeam (10) other end is provided with electro-hydraulic watching
Take electrical loading apparatus (9)；
Described electro-hydraulic servo electrical loading apparatus (9) include hydraulic cylinder (91), load bar (92), friction head (93), electrohydraulic servo valve
(94), controller (95), amplifier (96), feedback potentiometer (97), command potential device (98), described load bar (92) one end with
Hydraulic cylinder (91) is fixedly connected, and load bar (92) other end is connected with friction head (93), the cursor slide of feedback potentiometer (97) with plus
Carry bar (92) to connect, feedback potentiometer (97) is connected with amplifier (96), feedback potentiometer (97) is with command potential device (98) even
Connect, command potential device (98) is connected with amplifier (96), amplifier (96) is connected with controller (95), controller (95) with electro-hydraulic
Servo valve (94) connects, and electrohydraulic servo valve (94) is connected with hydraulic cylinder (91).
2. high-temperature friction testing machine according to claim 1 servo-loading unit it is characterised in that: described load bar
(92) other end is connected with friction head (93) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620792207.1U CN205898599U (en) | 2016-07-27 | 2016-07-27 | Servo loading device of high temperature friction testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620792207.1U CN205898599U (en) | 2016-07-27 | 2016-07-27 | Servo loading device of high temperature friction testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898599U true CN205898599U (en) | 2017-01-18 |
Family
ID=57785129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620792207.1U Expired - Fee Related CN205898599U (en) | 2016-07-27 | 2016-07-27 | Servo loading device of high temperature friction testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898599U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556983A (en) * | 2019-01-22 | 2019-04-02 | 四川大学 | The secondary friction-wear test platform of one discharge plate disk friction |
| CN112326247A (en) * | 2020-11-03 | 2021-02-05 | 上海大学 | Fatigue life testing machine for high-speed rail bearing |
-
2016
- 2016-07-27 CN CN201620792207.1U patent/CN205898599U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556983A (en) * | 2019-01-22 | 2019-04-02 | 四川大学 | The secondary friction-wear test platform of one discharge plate disk friction |
| CN109556983B (en) * | 2019-01-22 | 2024-02-02 | 四川大学 | Friction and wear test stand for disk friction pair |
| CN112326247A (en) * | 2020-11-03 | 2021-02-05 | 上海大学 | Fatigue life testing machine for high-speed rail bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |