CN108518237A - A method of according to the effective pass trip straightening drag conveyor of hydraulic support - Google Patents
A method of according to the effective pass trip straightening drag conveyor of hydraulic support Download PDFInfo
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- CN108518237A CN108518237A CN201810204691.5A CN201810204691A CN108518237A CN 108518237 A CN108518237 A CN 108518237A CN 201810204691 A CN201810204691 A CN 201810204691A CN 108518237 A CN108518237 A CN 108518237A
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- hydraulic support
- pushing
- sliding
- controller
- piston rod
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 37
- 239000003921 oil Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000035772 mutation Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
- E21F13/066—Scraper chain conveyors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of methods according to the effective pass trip straightening drag conveyor of hydraulic support, pressure sensor and displacement sensor are set on each hydraulic support, and the controller of each hydraulic support is made to be connected with each other, effective pushing and sliding displacement of one of hydraulic support is obtained by pressure sensor and displacement sensor when carrying out shifting frame, then using effective pushing and sliding displacement of the hydraulic support as desired value, pushing and sliding are carried out with desired value to other each hydraulic supports, by obtaining actually active pushing and sliding displacement compared with desired value after pushing and sliding, and it is adjusted again, finally reduce the departure after each hydraulic support pushing and sliding, ensure the linearity of the middle pan of scraper conveyor；Due to reducing the bending of the middle pan of scraper conveyor as far as possible, the running resistance of coalcutter can be effectively reduced, while reducing the additional friction with associated devices, reduce abrasion, improve the service life of each equipment.
Description
Technical field
It is specifically a kind of according to the effective pass trip of hydraulic support the present invention relates to a kind of method of straightening drag conveyor
The method of straightening drag conveyor.
Background technology
Drag conveyor is a kind of using Rao Xingti as the continuous conveyor of haulage gear, is current longwall coal work
The unique transporting equipment in face." collaboration of three machines " middle scraper conveyer is both the running track of coalcutter and is cut by coalcutter
The transporting equipment of rear coal is cut, drag conveyor connect the shifting for completing multiple hydraulic supports with multiple hydraulic supports arranged side by side
Frame, multiple hydraulic support pushing and sliding drag conveyors to next working face, to realize the continuous operation of coalcutter cutting.Therefore it scrapes
Plate conveyer is the intermediate hub of " collaboration of three machines ", undertakes important function.
In fully-mechanized mining working, drag conveyor will bear the gravity and chain pull of coal, want simultaneously during transporting coal
Bear the additional friction, the frictional force and adverse circumstances of coal charge and intermediate channel that are generated due to the horizontal and vertical bending of intermediate channel
The situation of the Various Complexes such as lower corrosion.These situations may all cause great economic loss to enterprise, or even jeopardize scene
The life security of operating personnel.
After completing cutting work in work at present face due to coalcutter, drag conveyor is needed through multiple hydraulic supports pair
It carries out pushing and sliding hence into subsequent work face, due in each hydraulic support and drag conveyor during carrying out pushing and sliding
There are joint gap and (the idle stroke section that there is piston rod overhang are different) of different sizes in gap for portion's slot, therefore only lead to
It crosses under the piston rod overhang unanimous circumstances of control advancing jack, can still make each hydraulic support in the middle part of drag conveyor
There are different situations for effective pushing and sliding distance of slot, and then the intermediate channel of drag conveyor can be caused to be bent, in this way follow-up
The running resistance of coalcutter will be will increase in the course of work, while can also increase the additional friction with associated devices and coal charge,
Accelerate so as to cause being worn between equipment, reduces its service life.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of according to the effective pass trip straightening of hydraulic support
The method of drag conveyor, can determine that the idle stroke section of advancing jack during each hydraulic support pushing and sliding, and then can determine
Effective pushing and sliding displacement of each hydraulic support to the middle pan of scraper conveyor, to reduce the deviation after each hydraulic support pushing and sliding
Amount, the final linearity for ensureing the middle pan of scraper conveyor.
To achieve the goals above, the technical solution adopted by the present invention is：It is a kind of according to the effective pass trip of hydraulic support
The method of straightening drag conveyor, the specific steps are：
A, pressure sensor and advancing jack are installed in each hydraulic support at the back cavity oilhole of advancing jack
Piston rod surface install displacement sensor, and by each hydraulic support pressure sensor and displacement sensor respectively with it is each
Hydraulic bracket controller connects；
B, to each hydraulic support according to sequence is numbered successively from left to right or from right to left, wherein carrying out first
The hydraulic support of number is standard frame, and the controller on standard frame is connected by the controller of CAN bus and other hydraulic supports
It connects；
C, when drag conveyor needs to carry out pushing and sliding, standard frame moves frame first, and the passage of hydraulic oil from standard frame is very heavy
It pushes up back cavity oilhole to enter, and oil return is discharged from the ante-chamber oilhole of advancing jack, to make the piston rod of advancing jack start
It stretches out, until completing the injection to stopping hydraulic oil after the pushing and sliding process of the middle pan of scraper conveyor；
D, the oil pressure value of detection is fed back to the hydraulic support by pressure sensor in real time during the entire pushing and sliding of step C
Controller stored, the piston rod overhang of detection is fed back to the control of the hydraulic support by simultaneous displacement sensor in real time
Device is stored；
E, the oil pressure value of detection and the piston rod overhang of detection are carried out X-Y scheme fitting by controller, obtain oil pressure value with
The variation relation figure of piston rod overhang；
F, the piston rod at this time corresponding to the step E variation relation figures obtained and determining mutation oil pressure value stretches out
Amount can obtain the distance of idle stroke section, and then the distance for subtracting by the total overhang of piston rod idle stroke section can obtain standard
Effective pushing and sliding displacement of the frame to the middle pan of scraper conveyor；
G, effective pushing and sliding displacement is sent to remaining each hydraulic support by the controller of standard frame by CAN bus
The controller of controller, each hydraulic support is stored effective pushing and sliding displacement as desired value；
H, next hydraulic support proceeds by shifting frame with the pre- pushing and sliding distance that desired value is current hydraulic support, after pushing and sliding
Step C to F is repeated, show that effective pushing and sliding displacement of current hydraulic support as actual value, then subtracts reality by desired value
Actual value obtains the passage departure of current hydraulic support；
If a, passage departure is more than zero, the controller control piston rod of current hydraulic support continues to stretch out, and passes through
Displacement sensor detects in real time continues overhang, until continuing overhang is equal to passage departure, terminates current hydraulic support
Pushing and sliding process；
If b, passage departure is equal to zero, terminate the pushing and sliding process of current hydraulic support；
If c, passage departure is less than zero, terminate the pushing and sliding process of current hydraulic support, and the passage departure is deposited
The controller in current hydraulic support is stored up, its practical desired value is the desired value of standard frame in the hydraulic support pushing and sliding next time
Add the passage departure；
I, determine whether current hydraulic support is last hydraulic support according to number, if it is not, then next hydraulic support
Repeat step H；If so, completing a pushing and sliding process of entire drag conveyor.
Compared with prior art, the present invention uses pressure sensor, displacement sensor and multiple hydraulic support sides of being combined
Formula obtains effective pushing and sliding displacement of one of hydraulic support by pressure sensor and displacement sensor, then with the liquid
It is desired value to press effective pushing and sliding displacement of holder, carries out pushing and sliding with desired value to other each hydraulic supports, passes through after pushing and sliding
Actually active pushing and sliding displacement is obtained compared with desired value, and is adjusted again, after finally reducing each hydraulic support pushing and sliding
Departure, ensure the linearity of the middle pan of scraper conveyor；It, can due to reducing the bending of the middle pan of scraper conveyor as far as possible
The running resistance of coalcutter is effectively reduced, while reducing the additional friction with associated devices, abrasion is reduced, improves each equipment
Service life.
Description of the drawings
Fig. 1 is the work flow diagram of the present invention；
Fig. 2 is the position view of hydraulic support and scratch board conveyor in the present invention；
Fig. 3 be in the present invention pressure sensor and displacement sensor in the position artwork of advancing jack；
Fig. 4 is the variation relation figure of oil pressure value and piston rod overhang in the present invention.
In figure：1, hydraulic support, 2, advancing jack, 3, the middle pan of scraper conveyor, 4, back cavity oilhole, 5, ante-chamber oil
Hole, 6, piston rod, the 7, second articulated section, the 8, first articulated section, 9, piston, 10, cylinder body, 11, pin hole, 12, pressure sensor,
13, displacement sensor.
Specific implementation mode
The invention will be further described below.
As shown in Figure 1, the present invention the specific steps are：
A, pressure sensor 12 is installed in each hydraulic support 1 at the back cavity oilhole 4 of advancing jack 2 and passage is very heavy
Displacement sensor 13 is installed on 6 surface of piston rod on top 2, and by the pressure sensor 12 and displacement sensing on each hydraulic support 1
Device 13 is connect with the controller of each hydraulic support 1 respectively；
B, to each hydraulic support 1 according to sequence is numbered successively from left to right or from right to left, wherein carrying out first
The hydraulic support 1 of a number is standard frame, and the controller on standard frame is passed through the control of CAN bus and other hydraulic supports 1
Device connects；
C, when drag conveyor needs to carry out pushing and sliding, standard frame moves frame first, and the passage of hydraulic oil from standard frame is very heavy
The entrance of 2 back cavity oilholes 4 is pushed up, and oil return is discharged from the ante-chamber oilhole 5 of advancing jack 2, to make the piston rod of advancing jack 2
6 start to stretch out, until completing the injection to stopping hydraulic oil after the pushing and sliding process of the middle pan of scraper conveyor 3；
D, the oil pressure value of detection is fed back to the hydraulic pressure branch by pressure sensor 12 in real time during the entire pushing and sliding of step C
The controller of frame 1 is stored, and the piston rod overhang of detection is fed back to the hydraulic support 1 by simultaneous displacement sensor 13 in real time
Controller stored；
E, the oil pressure value of detection and the piston rod overhang of detection are carried out X-Y scheme fitting by controller, obtain oil pressure value with
The variation relation figure of piston rod overhang；
F, as shown in figure 4, when advancing jack 2 is in idle stroke section, although the piston rod 6 of advancing jack 2 stretches out,
But the middle pan of scraper conveyor 3, there is no movement, pressure sensor 12 measures the back cavity oilhole 4 of advancing jack 2 at this time
The oil liquid pressure value of entrance is smaller, and when the piston rod of advancing jack 26 is more than pushing and sliding movement critical point in drag conveyor
Portion's slot 3 starts to move, and the oil pressure value of 2 back cavity oilhole 4 of advancing jack can be mutated at this time, and mutation, which increases to, always can make passage
The promotion the middle pan of scraper conveyor 3 of jack 2, therefore thrust (the i.e. oil pressure of hydraulic oil that advancing jack 2 applies in idle stroke section
It is worth) differ larger with the thrust of effective pass trip section after the contact the middle pan of scraper conveyor 3 of advancing jack 2, the two mistake
Oil pressure value can mutate when crossing, and according to the step E variation relation figures obtained and determine this corresponding to mutation oil pressure value
When piston rod overhang can obtain the distance of idle stroke section, and then the distance of idle stroke section is subtracted by the total overhang of piston rod
It can obtain effective pushing and sliding displacement of the standard frame to the middle pan of scraper conveyor 3；
G, effective pushing and sliding displacement is sent to remaining each hydraulic support 1 by the controller of standard frame by CAN bus
Controller, the controller of each hydraulic support 1 stores effective pushing and sliding displacement as desired value；
H, next hydraulic support 1 proceeds by shifting frame, pushing and sliding with the pre- pushing and sliding distance that desired value is current hydraulic support 1
After repeat step C to F, show that effective pushing and sliding displacement of current hydraulic support 1 as actual value, is then subtracted by desired value
Actual value obtains the passage departure of current hydraulic support 1；
If a, passage departure is more than zero, illustrate that the piston rod overhang of current hydraulic support 1 makes corresponding thereto
The middle pan of scraper conveyor 3 is not up to the straightening position of the middle pan of scraper conveyor corresponding with standard frame 3, therefore current hydraulic pressure
The controller control piston rod 6 of holder 1 continues to stretch out, and detection continues overhang in real time by displacement sensor 13, until after
Continuous overhang is equal to passage departure, terminates the pushing and sliding process of current hydraulic support 1；
If b, passage departure is equal to zero, illustrate that the piston rod overhang of current hydraulic support 1 makes corresponding thereto
The middle pan of scraper conveyor 3 reaches the straightening position of the middle pan of scraper conveyor corresponding with standard frame 3, therefore terminates current liquid
Press the pushing and sliding process of holder 1；
If c, passage departure is less than zero, illustrate that the piston rod overhang of current hydraulic support 1 makes corresponding thereto
The middle pan of scraper conveyor 3 has been more than the straightening position of the middle pan of scraper conveyor corresponding with standard frame 3, but due to pushing away at this time
It is the pushing and sliding process that can not be retracted again, therefore terminate current hydraulic support 1 to move jack 2, and the passage departure is stored in
The controller of current hydraulic support 1, in 1 pushing and sliding of hydraulic support next time, its practical desired value is to receive the phase of standard frame
Prestige value adds the passage departure, and since passage departure is negative value, practical desired value is less than the desired value of standard frame, to
Can be by shortening the piston rod overhang of the secondary advancing jack 2, passage departure when to last pushing and sliding compensates, into
And the middle pan of scraper conveyor 3 after making the secondary hydraulic support pushing and sliding corresponding thereto reaches scraper plate corresponding with standard frame
The straightening position of conveyer intermediate channel 3；To realize the straightening of the hydraulic support 1 to the middle pan of scraper conveyor 3.
I, determine whether current hydraulic support 1 is last hydraulic support 1 according to number, if it is not, then next hydraulic pressure branch
Frame 1 repeats step H；If so, completing a pushing and sliding process of entire drag conveyor.
Above-mentioned each hydraulic support 1, advancing jack 2 and drag conveyor is existing equipment.
As shown in Figures 2 and 3, the structure of the advancing jack 2 of use includes cylinder body 10, piston rod 6 and piston 9, piston rod 6
It is arranged in cylinder body 10, piston 9 is fixed on piston rod 6, and 10 excircle of cylinder body is equipped with ante-chamber oilhole 5 and back cavity oilhole 4, cylinder body
10 both ends are respectively fixed with the first articulated section 8 and the second articulated section 7, wherein the second articulated section 7 is equipped with pin hole 11, passage is very heavy
Top 2 is hinged by pin hole 11 and axis pin and the middle pan of scraper conveyor 3.
Claims (1)
1. a kind of method according to the effective pass trip straightening drag conveyor of hydraulic support, which is characterized in that using effectively pushing away
It migrates journey and carrys out straightening drag conveyor, the specific steps are：
A, the piston of pressure sensor and advancing jack is installed in each hydraulic support at the back cavity oilhole of advancing jack
Bar surface install displacement sensor, and by each hydraulic support pressure sensor and displacement sensor respectively with each hydraulic pressure
Bracket controller connects；
B, to each hydraulic support according to sequence is numbered successively from left to right or from right to left, wherein carrying out first number
Hydraulic support be standard frame, the controller on standard frame is connect by CAN bus with the controller of other hydraulic supports；
C, when drag conveyor needs pushing and sliding, standard frame moves frame, advancing jack back cavity oil of the hydraulic oil from standard frame first
Hole enters, and oil return is discharged from the ante-chamber oilhole of advancing jack, to make the piston rod of advancing jack start to stretch out, until
Complete the injection to stopping hydraulic oil after the pushing and sliding process of the middle pan of scraper conveyor；
D, the oil pressure value of detection is fed back to the control of the hydraulic support by pressure sensor in real time during the entire pushing and sliding of step C
Device processed is stored, simultaneous displacement sensor the piston rod overhang of detection is fed back in real time the controller of the hydraulic support into
Row storage；
E, the oil pressure value of detection and the piston rod overhang of detection are carried out X-Y scheme fitting by controller, obtain oil pressure value and piston
The variation relation figure of bar overhang；
F, according to the step E variation relation figures obtained and the overhang of piston rod at this time corresponding to mutation oil pressure value is determined i.e.
It can obtain the distance of idle stroke section, and then the distance for subtracting by the total overhang of piston rod idle stroke section can obtain standard frame pair
Effective pushing and sliding displacement of the middle pan of scraper conveyor；
G, effective pushing and sliding displacement is sent to the control of remaining each hydraulic support by CAN bus by the controller of standard frame
The controller of device, each hydraulic support is stored effective pushing and sliding displacement as desired value；
H, next hydraulic support proceeds by shifting frame with the pre- pushing and sliding distance that desired value is current hydraulic support, is repeated after pushing and sliding
Step C to F show that effective pushing and sliding displacement of current hydraulic support as actual value, then subtracts actual value by desired value
Obtain the passage departure of current hydraulic support；
If a, passage departure is more than zero, the controller control piston rod of current hydraulic support continues to stretch out, and passes through displacement
Sensor detects in real time continues overhang, until continuing overhang is equal to passage departure, terminates the pushing and sliding of current hydraulic support
Process；
If b, passage departure is equal to zero, terminate the pushing and sliding process of current hydraulic support；
If c, passage departure is less than zero, terminate the pushing and sliding process of current hydraulic support, and the passage departure is stored in
The controller of current hydraulic support, in the hydraulic support pushing and sliding next time, its practical desired value is that the desired value of standard frame adds this
Elapse departure；
I, determine whether current hydraulic support is last hydraulic support according to number, if it is not, then next hydraulic support repeats
Step H；If so, completing a pushing and sliding process of entire drag conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204691.5A CN108518237B (en) | 2018-03-13 | 2018-03-13 | A method of effectively elapsing stroke straightening drag conveyor according to hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204691.5A CN108518237B (en) | 2018-03-13 | 2018-03-13 | A method of effectively elapsing stroke straightening drag conveyor according to hydraulic support |
Publications (2)
| Publication Number | Publication Date |
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| CN108518237A true CN108518237A (en) | 2018-09-11 |
| CN108518237B CN108518237B (en) | 2019-05-21 |
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| CN201810204691.5A Active CN108518237B (en) | 2018-03-13 | 2018-03-13 | A method of effectively elapsing stroke straightening drag conveyor according to hydraulic support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990750A (en) * | 2019-04-18 | 2019-07-09 | 中铁隧道局集团有限公司 | A kind of cutter head of shield machine abrasion on-line measurement device |
| CN110006384A (en) * | 2019-04-18 | 2019-07-12 | 中铁隧道局集团有限公司 | A kind of cutter head of shield machine abrasion On-line Measuring Method |
| CN113148549A (en) * | 2021-05-25 | 2021-07-23 | 威世诺智能科技(青岛)有限公司 | Sensing method for collecting multivariate information based on middle groove goaf side of scraper conveyor |
| CN113508216A (en) * | 2019-03-06 | 2021-10-15 | 卡特彼勒环球矿业欧洲有限公司 | Method and device for monitoring the operation of a mining machine unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113508216A (en) * | 2019-03-06 | 2021-10-15 | 卡特彼勒环球矿业欧洲有限公司 | Method and device for monitoring the operation of a mining machine unit |
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| CN109990750A (en) * | 2019-04-18 | 2019-07-09 | 中铁隧道局集团有限公司 | A kind of cutter head of shield machine abrasion on-line measurement device |
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| CN113148549A (en) * | 2021-05-25 | 2021-07-23 | 威世诺智能科技(青岛)有限公司 | Sensing method for collecting multivariate information based on middle groove goaf side of scraper conveyor |
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|---|---|
| CN108518237B (en) | 2019-05-21 |
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