CN207147793U - A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode - Google Patents
A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode Download PDFInfo
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- CN207147793U CN207147793U CN201720651892.0U CN201720651892U CN207147793U CN 207147793 U CN207147793 U CN 207147793U CN 201720651892 U CN201720651892 U CN 201720651892U CN 207147793 U CN207147793 U CN 207147793U
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- coal breakage
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Abstract
The utility model discloses a kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode.Bridge motor group slings the coal breakage operating mode of coal breakage storehouse simulation drag conveyor, jack coordinates rotating shaft, the inclination operating mode of self-locking guide rod simulation drag conveyor, synchronous jack withstands chain wheeling support and provides adjustable tensile force, torque and speed sensorses in drive system can measure the running parameter of sprocket wheel and total running resistance, suffered pressure and frictional force when split type middle part slot structure can measure work respectively by the three-dimensional force sensor of each self installation, the embedded radio strain gauge in scraper plate can measure the pressure and frictional force suffered by scraper plate.This experimental rig can simulate the actual operating mode of drag conveyor, and can measure the frictional resistance at each position, and the data obtained is estimated available for commenting for drag conveyor running resistance, and test basis is provided for scrapper conveyor tribology research and antifriction design.
Description
Technical field
A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode is the utility model is related to, belongs to mining conveying
Technical field.
Background technology
With the lasting steady-state growth of China's economy, energy demand constantly rises, and coal exists as the status of the main body energy
It will not change in short time.Drag conveyor largely determines as one of coal-face key equipment " three machines "
Whether the production capacity and operating efficiency of coal, its normal operation directly decide the economic benefit of coal production.Scraper plate is defeated
Machine is sent to be moved by chain-driving scraper plate in chute, so as to realize the transport of mineral.Scraper plate, chain in intermediate channel using coal as medium
More body frictional force between bottom plate account for the 30%~40% of running resistance, are the major reasons for causing energy expenditure.Coal
Humidity and granularity, the machining accuracy of intermediate channel, laying quality etc. be an important factor for influenceing coefficient of friction, rubbed under complex working condition
It is larger to wipe coefficient fluctuation range.To be forbidden if assessed scrapper conveyor operation frictional resistance, frictional resistance is more than and exceedes motor load,
Cause burn-down of electric motor.In addition the tensile force for running chain be preferably must be held in certain limit, and running resistance is not estimated accurately, in advance
If tensile force it is excessive or too small, the generation for jumping the accident such as chain, card chain or broken teeth can be caused.Therefore, drag conveyor is run
Resistance is assessed, and is had great importance to the analysis of each position frictional resistance and antifriction design.
The total running resistance overwhelming majority for scraping conveyer is frictional resistance, and frictional resistance includes chain, bottom plate, scraper plate and ledge
Deng the phase mutual friction between position.There is a certain degree of research to scrapper conveyor operation frictional resistance at present, but mostly by experience
Coefficient, it is impossible to tackle the operating mode of various complicated changes；The method for calculating running resistance at this stage is subtracted with motor output during loading
Motor during zero load is gone to export to obtain total running resistance, this can not disclose the shadow that various operating modes run frictional resistance to different parts
The relation of sound；In the research of running resistance coefficient of friction, using equlvalent coefficient of friction, not chain and bottom plate, scraper plate
Separated with the coefficient of friction of more body frictions such as ledge.The related experimental rig of drag conveyor has：The patent No.
CN201610852686.6 discloses heavily loaded Chain Wheel of Flight Bar Conveyor fatigue under scrubbing monitoring device and method under vibratory impulse, passes through
The operating mode under high-impact is simulated, the fretting corrosion to scraper chain is monitored；Patent No. CN201610621174.9 is disclosed
A kind of detecting system and method for drag conveyor complexity operating condition, surveyed using the inertial measuring unit on scrapper conveyor
Inertia force is measured to analyze the operating mode of scrapper conveyor.The patent of drag conveyor concentrate on new-type drag conveyor, performance analysis and
In friction-wear test, temporarily not it has been proposed that simulating each position frictional resistance experimental rig under the various operating modes of scrapper conveyor, therefore
The present invention proposes a kind of scrapper conveyor frictional resistance experimental rig, can simulate various transporting coal operating modes, measure its running resistance, and
The frictional resistance at each position of scrapper conveyor can be made a distinction.
Utility model content
In view of the above-mentioned problems, the present invention provides a kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode, lead to
Cross various operating modes when simulating drag conveyor transporting coal, measure total running resistance, scraper plate and central panel frictional resistance, scraper plate with
Upper ledge frictional resistance, scraper plate and lower ledge frictional resistance etc., so analyze scrapper conveyor operation when difference operating mode to running resistance
Influence and frictional resistance distribution situation, provide test basis for the design and tribology research of scrapper conveyor.
To achieve these goals, the technical solution adopted in the utility model is：A kind of scraper plate for simulating transporting coal operating mode
Machine frictional resistance experimental rig, it is characterised in that：Including coal breakage simulation system, tilt simulation system, tensioning simulation system, transport
Simulation system, drive system, control system：
The coal breakage simulation system include be fixed on ground lifting bracket, can horizontal vertical translation on derrick tower
Dynamic bridge motor group, the angular transducer B in reel rotating shaft, the force snesor on steel wire rope, hung by hook
The coal breakage storehouse risen, the material flow gauge located at coal breakage storehouse lower end, the discharge gate located at coal breakage orlop portion and fall located at experimental bench
Coal breakage collecting bin at coal；
The simulation system that tilts includes experimental bench support, jack, locks guide rod, installation with what jack was symmetrically installed
Angular transducer A in experimental bench rotating shaft, the experimental bench support, the jack located at experimental bench right-hand member and located at experimental bench
Four support members for locking guide rod composition of left end assume diamond in shape arrangement, and ground is fixed in described jack one end, and the other end is solid
Due to experimental bench bottom；
The tensioning simulation system includes being weldingly fixed on tensioning support, the rectangle on experimental bench on experimental bench
Guide rail, the synchronous jack being tensioned on support is fixed on, foil gauge, the synchronous jack top are posted in the synchronous jack
End is headed into the groove of chain wheeling support；
The transport simulation system includes chain wheeling support, sprocket wheel, scraper chain, scraper plate, upper ledge, middle plate and lower ledge, institute
The fractionation that ledge, middle plate and lower ledge are intermediate channel is stated, upper ledge support, the upper ledge branch are provided with by the upper ledge
Frame, middle board mount and lower ledge support are provided with three-dimensional force sensor, and the upper ledge support, middle board mount and lower ledge support lead to
Cross and be fixedly welded in table base, gap between the upper ledge and middle plate be present, insertion is wireless in the scraper plate groove
Strain gauge；
The drive system includes motor, shaft coupling B, decelerator, shaft coupling A, torque rotary speed sensor B, brake,
The motor, shaft coupling B, decelerator, shaft coupling A, torque rotary speed sensor B, sprocket wheel are sequentially connected, and the brake is with turning
Square speed probe A, sprocket wheel are sequentially connected；
Described control system mainly includes computer, industrial control software, and computer disposal shows what each sensor was gathered
Parameter, the rotating speed of motor, the tensile force of synchronous jack, jack is controlled to stretch by operating industrial control software on computers
Go out the start and stop of length, the aperture of coal breakage storehouse discharge gate and bridge motor group, and then change the reading of each sensor.
Further, the angular transducer A, angular transducer B, force snesor, material flow gauge, foil gauge, three-dimensional
Force snesor, torque rotary speed sensor A, torque rotary speed sensor B connect computer by respective signal picker, wirelessly should
Force snesor connects computer by wireless signal receiver.
A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode, its application method include following link：
A) synchronous jack of computer control is stretched out, and withstands two chain wheeling supports and realization is slided on rectangular guideway synchronously
Tensioning, after foil gauge measures tensile force and reaches preset value on jack, synchronous jack self-locking.
B) computer control jack withstand table base, make table base using the rotating shaft of experimental bench frame upper as
The center of circle rotates, and when angular transducer is measured after experimental bench angle of inclination reaches preset value, jack and can lock guide rod self-locking, real
Test platform to fix, the operation angle of inclination of scrapper conveyor can be simulated.
C) operation motor rotates sprocket wheel, and rotating speed and the torque of sprocket wheel can be measured by torque and speed sensorses, counts
The running resistance of scraper chain zero load or full load can be obtained by calculating；Using the rotating speed of variable-frequency governor adjustable main movable sprocket, system is utilized
Dynamic device can be braked.
D) the lifting unit of computer control can realize the vertical and horizontal direction movement in coal breakage storehouse, can simulate difference
Coal breakage position with height, when the coal consumption of coal breakage storehouse to the greatest extent when can be exchanged with collecting bin；Angular transducer, force snesor and material flow
Gauge connects computer by signal picker, can measure the height, weight and flow of coal breakage.
E) three-dimensional force sensor on upper ledge support, middle board mount, lower ledge support passes through signal picker
Computer is connected, the frictional force of the vertical direction pressure and horizontal direction suffered by each part can be measured；Insertion is wireless on scraper plate
Strain gauge connects computer by wireless signal receiver, can measure the pressure and frictional force suffered by scraper plate.
Change a)-d) in parameter, the simulation to different operating modes can be achieved, then using can e) measure under different operating modes
Frictional force suffered by each position of scrapper conveyor.
Beneficial effect
The present invention can be simulated under the different operating modes such as coal breakage position, height, size, operation angle of inclination, tensioning, rotating speed
Scraper chain operation conditions, it is significant for studying influence of the different operating modes to drag conveyor frictional resistance；Using point
The intermediate channel of body formula, can measure the up resistance and friction in down stroke of drag conveyor respectively, and chain scraper plate centering plate friction,
Friction of the coal scraper plate to upper ledge, and friction of the coal to scraper plate, the data obtained can be used to analyze each position frictional force to be transported always
Ratio occupied by row resistance, test basis is provided for more body tribology research of scraper chain and antifriction design.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is experimental bench position of the present utility model half sectional view；
Fig. 3 is experimental bench position of the present utility model top view；
Fig. 4 is the sectional view of A-A in Fig. 2；
Fig. 5 is the utility model control structure schematic diagram；
In figure：1st, lifting bracket；2nd, jack；3rd, angular transducer A；4th, testing stand support；5th, guide rod can be locked；6th, coal breakage
Collecting bin；7th, lifting unit；8th, angular transducer B；9th, force snesor；10th, coal breakage storehouse；11st, material flow gauge；12nd, discharging lock
Door；13rd, table base；14th, rectangular guideway；15th, foil gauge；16th, synchronous jack；17th, it is tensioned support；18th, scraper chain；
19th, scraper plate；20th, chain wheeling support；21st, brake；22nd, torque rotary speed sensor A；23rd, sprocket wheel；24th, torque rotary speed sensor B；
25th, shaft coupling A；26th, decelerator；27th, shaft coupling B；28th, motor；29th, upper ledge；30th, upper ledge support；31st, three-dimensional force
Sensor；32nd, middle board mount；33rd, lower ledge support；34th, lower ledge；35th, middle plate；36th, wireless strain gauge.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, a kind of scrapper conveyor frictional resistance experiment dress for simulating transporting coal operating mode shown in Fig. 3, Fig. 4 and Fig. 5
Put, including coal breakage simulation system, inclination simulation system, tensioning simulation system, transport simulation system, drive system and control system
System：
Lifting bracket 1 that the coal breakage simulation system includes being fixed on ground, can be horizontal vertical on derrick tower
Mobile bridge motor group 7, the angular transducer B8 in reel rotating shaft, the force snesor 9 on steel wire rope, pass through extension
Hook block rise coal breakage storehouse 10, the material flow gauge 11 located at coal breakage storehouse lower end, the discharge gate 12 located at the bottom of coal breakage storehouse 10 and
Coal breakage collecting bin 6 at experimental bench coal breakage；
It is described tilt simulation system include experimental bench support 4, jack 2, with jack 2 be symmetrically installed lock guide rod 5,
Angular transducer A3 in experimental bench rotating shaft, described two experimental bench supports 4, the jack 2 located at experimental bench right-hand member
And assumed diamond in shape arrangement located at four support members for locking the composition of guide rod 5 of experimental bench left end, described one end of jack 2 is fixed on
Ground, the other end are fixed on experimental bench bottom 13；
The tensioning simulation system includes being weldingly fixed on tensioning support 17, the square on experimental bench on experimental bench
Shape guide rail 14, the synchronous jack 16 being tensioned on support 17 is fixed on, 16 post foil gauge 15, institute in the synchronous jack
The top of synchronous jack 16 is stated to head into the groove of chain wheeling support 20.
The transport simulation system includes chain wheeling support 20, sprocket wheel 23, scraper chain 18, scraper plate 19, upper ledge 29, middle plate 35
And lower ledge 34, upper ledge 29, middle plate 35 and the lower ledge 34 be the intermediate channel of scraper chain 18 fractionation, the upper ledge support
30th, middle board mount 32 and lower ledge support 33 are provided with three-dimensional force sensor 31, the upper ledge support 30, middle board mount 32 and under
For ledge support 33 by being fixedly welded in table base 13, the upper ledge 29 and middle plate 35 have the gap of very little, described
Embedded wireless strain gauge 36 in the groove of scraper plate 19.
The drive system includes motor 28, shaft coupling 27, decelerator 26, torque rotary speed sensor B24, brake
21, the motor 28, shaft coupling B27, decelerator 26, shaft coupling A25, torque rotary speed sensor B24, sprocket wheel 23 connect successively
Connect, the brake 21, torque rotary speed sensor A22, sprocket wheel 23 are sequentially connected.
Described control system mainly includes computer, industrial control software, and computer disposal shows what each sensor was gathered
Parameter, control the rotating speed of motor 28, the tensile force of synchronous jack 16, jack by operating industrial control software on computers
2 extension elongation, the aperture of coal breakage storehouse discharge gate 12 and the start and stop of lifting unit 7, and then change the reading of each sensor.
Further, the angular transducer A3, angular transducer B8, force snesor 9, material flow gauge 11, foil gauge 15,
Three-dimensional force sensor 31, torque rotary speed sensor A22, torque rotary speed sensor B24 are connected by respective signal picker and counted
Calculation machine, wireless strain gauge 36 connect computer by wireless signal receiver.
Embodiment 1：
The frictional resistance experimental rig of this simulation scrapper conveyor transporting coal operating mode, its application method are as follows：
A) synchronous jack 16 of computer control is stretched out, and is withstood two chain wheeling supports 20 and is slided on rectangular guideway 14 in fact
Existing synchronous tension, after foil gauge 15 measures tensile force and reaches preset value on jack 2, the self-locking of synchronous jack 16.
B) jack 2 of computer control withstands table base 13, makes table base 13 with the top of experimental bench support 4
Rotating shaft is that the center of circle rotates, and when angular transducer 3 is measured after experimental bench angle of inclination reaches preset value, jack 2 is led with that can lock
The self-locking of bar 5, experimental bench are fixed, and can simulate the operation angle of inclination of scrapper conveyor.
C) operation motor 28 rotate sprocket wheel 23, by torque and speed sensorses 24 can measure sprocket wheel 23 rotating speed and
Torque, it can be calculated the running resistance of the zero load of scraper chain 18 or full load；Utilize variable-frequency governor adjustable main movable sprocket 23
Rotating speed, it can be braked using brake 21.
D) the lifting unit 7 of computer control can realize the vertical and horizontal direction movement in coal breakage storehouse 10, can simulate
Different coal breakage positions and height, can be exchanged when the coal consumption of coal breakage storehouse 10 is most with collecting bin 6；Angular transducer 8, force snesor
9 connect computer with material flow gauge 11 by signal picker, can measure the height, weight and flow of coal breakage.
E) three-dimensional force sensor 31 on upper ledge support 30, middle board mount 32, lower ledge support 33 passes through letter
Number collector connection computer, the frictional force of the vertical direction pressure and horizontal direction suffered by each part can be measured；On scraper plate 19
Embedded wireless strain gauge 36 connects computer by wireless signal receiver, can measure the pressure suffered by scraper plate 19 with rubbing
Wipe power.
Change a)-d) in parameter, the simulation to different operating modes can be achieved, then using can e) measure under different operating modes
Frictional force suffered by each position of scrapper conveyor.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (2)
- A kind of 1. scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode, it is characterised in that：Including coal breakage simulation system, Tilt simulation system, tensioning simulation system, transport simulation system, drive system, control system：The coal breakage simulation system include be fixed on ground lifting bracket (1), can horizontal vertical translation on derrick tower It is dynamic bridge motor group (7), the angular transducer B (8) in reel rotating shaft, the force snesor (9) on steel wire rope, logical Cross and link up with the coal breakage storehouse (10) sling, the material flow gauge (11) located at coal breakage storehouse lower end, unloading located at coal breakage storehouse (10) bottom Expect gate (12) and the coal breakage collecting bin (6) at experimental bench coal breakage；The simulation system that tilts includes experimental bench support (4), jack (2), locks guide rod with what jack (2) was symmetrically installed (5), the angular transducer A (3) in experimental bench rotating shaft, the experimental bench support (4), located at the very heavy of experimental bench right-hand member Top (2) and four support members for locking guide rod (5) composition located at experimental bench left end assume diamond in shape arrangement, the jack (2) Ground is fixed in one end, and the other end is fixed on experimental bench bottom (13)；The tensioning simulation system includes tensioning support (17), the rectangle on experimental bench being weldingly fixed on experimental bench Guide rail (14), the synchronous jack (16) being tensioned on support (17) is fixed on, foil gauge is posted on the synchronous jack (16) (15), synchronous jack (16) top is headed into the groove of chain wheeling support (20)；The transport simulation system include chain wheeling support (20), sprocket wheel (23), scraper chain (18), scraper plate (19), upper ledge (29), Middle plate (35) and lower ledge (34), upper ledge (29), middle plate (35) and the lower ledge (34) be intermediate channel fractionation, it is described on Upper ledge support (30), upper ledge support (30), middle board mount (32) and the lower ledge support (33) are provided with by ledge (29) Provided with three-dimensional force sensor (31), upper ledge support (30), middle board mount (32) and the lower ledge support (33) pass through welding It is fixed in table base (13), gap, scraper plate (19) groove between the upper ledge (29) and middle plate (35) is present The middle wireless strain gauge of insertion (36)；The drive system includes motor (28), shaft coupling B (27), decelerator (26), shaft coupling A (25), torque rotary speed and passed Sensor B (24), brake (21), the motor (28), shaft coupling B (27), decelerator (26), shaft coupling A (25), torque turn Fast sensor B (24), sprocket wheel (23) are sequentially connected, the brake (21) and torque rotary speed sensor A (22), sprocket wheel (23) according to Secondary connection；Described control system mainly includes computer, industrial control software, and computer disposal shows the parameter that each sensor is gathered, On computers by operate industrial control software control motor (28) rotating speed, synchronous jack (16) tensile force, jack (2) start and stop of extension elongation, the aperture of coal breakage storehouse discharge gate (12) and bridge motor group (7), and then change each sensor Reading.
- 2. a kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode according to claim 1, its feature exist In the angular transducer A (3), angular transducer B (8), force snesor (9), material flow gauge (11), foil gauge (15), three Dimensional force sensor (31), torque rotary speed sensor A (22), torque rotary speed sensor B (24) are connected by respective signal picker Computer is connect, wireless strain gauge (36) connects computer by wireless signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651892.0U CN207147793U (en) | 2017-06-07 | 2017-06-07 | A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651892.0U CN207147793U (en) | 2017-06-07 | 2017-06-07 | A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode |
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| Publication Number | Publication Date |
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| CN207147793U true CN207147793U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720651892.0U Expired - Fee Related CN207147793U (en) | 2017-06-07 | 2017-06-07 | A kind of scrapper conveyor frictional resistance experimental rig for simulating transporting coal operating mode |
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| CN (1) | CN207147793U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202706A (en) * | 2017-06-07 | 2017-09-26 | 中国矿业大学 | A kind of scrapper conveyor frictional resistance experimental rig and method for simulating coal heaver's condition |
| CN110040467A (en) * | 2019-03-07 | 2019-07-23 | 中国矿业大学 | A kind of the middle pan of scraper conveyor frictional force monitoring system |
| CN116374557A (en) * | 2023-05-31 | 2023-07-04 | 山西多尔晋泽煤机股份有限公司 | Underground scraper for coal mine |
-
2017
- 2017-06-07 CN CN201720651892.0U patent/CN207147793U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202706A (en) * | 2017-06-07 | 2017-09-26 | 中国矿业大学 | A kind of scrapper conveyor frictional resistance experimental rig and method for simulating coal heaver's condition |
| CN110040467A (en) * | 2019-03-07 | 2019-07-23 | 中国矿业大学 | A kind of the middle pan of scraper conveyor frictional force monitoring system |
| CN110040467B (en) * | 2019-03-07 | 2021-03-16 | 中国矿业大学 | Scraper conveyor middle part groove frictional force monitoring system |
| CN116374557A (en) * | 2023-05-31 | 2023-07-04 | 山西多尔晋泽煤机股份有限公司 | Underground scraper for coal mine |
| CN116374557B (en) * | 2023-05-31 | 2023-08-18 | 山西多尔晋泽煤机股份有限公司 | Underground scraper for coal mine |
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Granted publication date: 20180327 Termination date: 20210607 |