CN103204351B - A kind of belt conveyer automatic deviation rectifying device and control method thereof - Google Patents
A kind of belt conveyer automatic deviation rectifying device and control method thereof Download PDFInfo
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- CN103204351B CN103204351B CN201310105085.5A CN201310105085A CN103204351B CN 103204351 B CN103204351 B CN 103204351B CN 201310105085 A CN201310105085 A CN 201310105085A CN 103204351 B CN103204351 B CN 103204351B
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Abstract
The invention discloses a kind of belt conveyer automatic deviation rectifying device and control method thereof, automatic deviation rectifying device comprises by the conjuncted aligning idler machining formed of multiple aligning roller rack, aligning roller rack is connected with hydraulic stem by bearing pin, ensure that aligning roller rack does aligning motion by hydraulic stem, the afterbody of hydraulic stem by hinge on upper conveyor belt fixed support; Automatic deviation rectifying device also comprise near head roll install, for catching the sideslip travel switch of belt deflection signal, manufacturing line run signal is sent to by cable and is positioned at the other control box arranged of load-transfer device, is provided with Hydraulic Pump, guidance panel and control system in control box.This kind of belt conveyer automatic deviation rectifying device and the control method thereof with above-mentioned special construction realize the automatic process from a series of continuous action of correction being detected by control program and hydraulic efficiency pressure system, belt deflection phenomenon be can effectively correct in real time, steady, the reliability service of load-transfer device ensured.
Description
Technical field
The present invention relates to belt conveyer field, especially relate to a kind of belt conveyer automatic deviation rectifying device and control method thereof.
Background technology
Auto-rectification Device for Belt Conveyer refers to that conveyer is in operation process, belt centerline and conveyer line of centers inconsistent, the phenomenon of sway.Sideslip is the modal fault of belt conveyer, if process not in time, load-transfer device and frame severe friction can be caused, conveying band edge is even torn by plucking, not only affects the life-span of load-transfer device, simultaneously also easily outwards spreading, especially for the sealing-tape machine that discharging point is many, the phenomenon severe jamming of belt deviation is produced normally, brings belt torn edges, scatters the generation of the situations such as material, causes cylinder construction materials contract to cause the disconnected accident of load-transfer device spring; Particularly some crucial sealing-tape machine systems, once because a lot of production facilities accident seriously occurred sideslip, these accidents all caused very large loss to whole production and equipment cost, but sideslip never has processing method effectively frequently.
Belt conveyer is as the main load transfer device of bulk raw material, and its normal smooth running is related to the safe and stable operation of whole production system.But the sideslip of load-transfer device is the main operating troubles of belt conveyer always, and due to many-sided reason be difficult to adjustment.And use aligning carrying roller automatically can not adjust along with extraneous unstable operating mode.
Belt deflection normally because installation quality is not high, load-transfer device is second-rate, discharging point not just, cylinder is in uneven thickness etc., and reason makes load-transfer device in operational process by force unbalance, have that a cross component perpendicular to load-transfer device sense of motion causes, adopt the conventional common drawback of sideslip, tuningout, method for correcting error that prevents to be: load-transfer device is in operation sideslip, must Timeliness coverage, in time process otherwise must cause that material leaks, belt edges wearing and tearing, serious time even cause and produce and equipment breakdown; Most methods can only be shut down and be carried out tuningout by hand, has a strong impact on manufacturing schedule and the production efficiency of manufacturing line; Tuningout efficiency is low, wastes time and energy, and must repeatedly debug.The accident that belt deflection causes causes very large loss to enterprise.
Summary of the invention
Technical matters to be solved by this invention provides a kind of belt conveyer automatic deviation rectifying device and control method thereof for problems of the prior art, its objective is the automatic process realizing from a series of continuous action of correction being detected by control program and hydraulic efficiency pressure system, effectively correct the deviation phenomenon of load-transfer device in real time, ensure steady, the reliability service of load-transfer device.
Technical scheme of the present invention is that this belt conveyer automatic deviation rectifying device comprises by the conjuncted aligning idler machining formed of multiple aligning roller rack, aligning roller rack is connected with hydraulic stem by bearing pin, ensure that aligning roller rack does aligning motion by hydraulic stem, the afterbody of described hydraulic stem by hinge on load-transfer device fixed support; Described automatic deviation rectifying device also comprise near head roll install, for catching the sideslip travel switch of belt deflection signal, manufacturing line run signal is sent to by cable and is positioned at the other control box arranged of load-transfer device, is provided with Hydraulic Pump, guidance panel and control system in described control box.
Described control system comprises electric control system and hydraulic control system, described electric control system comprises major loop and control loop, major loop is made up of main power line, air switch (QF1), contactless switch (KM) and Oil pump electrical machinery (M), and control loop comprises control power supply, button, select switch, intermediate relay, time relay, sideslip travel switch;
Described hydraulic efficiency pressure system comprises fuel tank, gear type pump, three-position four-way electromagnetic directional valve, liquid control one-way throttle valve and hydraulic actuating cylinder;
When close circuit is formed, Oil pump electrical machinery obtains electric drive gear type pump, and by three-position four-way electromagnetic directional valve to hydraulic actuating cylinder fuel feeding, hydraulic oil forms loop promotion hydraulic stem and does one-way movement, and hydraulic stem drives aligning idler machining to regulate sideslip load-transfer device;
When Oil pump electrical machinery power-off, gear type pump stops to hydraulic actuating cylinder fuel feeding, and hydraulic stem drives the stop motion of aligning idler machining;
Described hydraulic actuating cylinder carrys out control presssure by liquid control one-way throttle valve, and by suitable pressure to realize the speed of aligning idler machining adjustment sideslip load-transfer device, the adjustment of pressure regulates according to the Adjustment effect of site transport band sideslip;
When load-transfer device is without sideslip, both sides sideslip travel switch disconnects, and Oil pump electrical machinery (M) must not be electric, and three-position four-way electromagnetic directional valve is in meta; Work as belt deflection, the sideslip travel switch closing of contact, belt deflection signal detected, by electric control loop, three-position four-way electromagnetic directional valve coil is obtained electric, Oil pump electrical machinery (M) starts, and three-position four-way electromagnetic directional valve is in position, side, now hydraulic actuating cylinder effect, promote aligning idler machining, thus realize self-align effect; Adjust to load-transfer device when sideslip to depart from sideslip travel switch back contact and disconnect, by after time relay 2-3 second, Oil pump electrical machinery (M) quits work, and returns to readiness for action.
A kind of control method for belt conveyer automatic deviation rectifying device is:
1) when belt conveyer switch on power, start work time, TYK manufacturing line run signal intermediate relay junction closure, ZXK automanual select switch are closed, now, if load-transfer device normally runs without deviation phenomenon, sideslip travel switch and XK1 and XK2 disconnect, loop is not formed closed, and control loop is in initial position, and hydraulic efficiency pressure system does not work;
2) when load-transfer device is when operational process is owing to making load-transfer device occur sideslip by side force N, the edge of sideslip load-transfer device will touch sideslip travel switch, loop is formed closed, time relay is energized, intermediate relay and three-position four-way electromagnetic directional valve energising subsequently, Oil pump electrical machinery forms loop starts, Hydraulic Cylinder hydraulic stem, hydraulic stem drives aligning idler machining to rotate, the axis of aligning roller rack is made to become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining produces friction force F1, F2, F3.
When load-transfer device is when operational process is owing to making load-transfer device to XK1 side sideslip by side force N, sideslip belt edges touches sideslip travel switch, i.e. XK1, loop is formed closed, time relay KT1 is energized, intermediate relay KA1 and three-position four-way electromagnetic directional valve DF1 energising after KT1 energising, Oil pump electrical machinery forms loop starts, hydraulic actuating cylinder promotes hydraulic stem to the right, hydraulic stem drives aligning idler machining turning clockwise, make the axis of aligning roller rack become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining produces friction force F1, F2, F3.
Described friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to XK2 side.
When frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with sideslip travel switch XK1, now N ＇=N, sideslip travel switch XK1 disconnects, by after time delay 2-3 second, loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
When load-transfer device is when operational process is owing to making load-transfer device to sideslip travel switch XK2 side sideslip by side force N, sideslip belt edges touches sideslip travel switch, i.e. XK2, loop is formed closed, time relay KT2 is energized, intermediate relay KA2 and three-position four-way electromagnetic directional valve DF2 energising after sideslip travel switch KT2 is energized, Oil pump electrical machinery forms loop starts, hydraulic actuating cylinder promotes hydraulic stem left, hydraulic stem drives aligning idler machining to turn left, the axis of aligning roller rack is made to become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining produces friction force F1, F2, F3.
Described friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to XK1 side.
When frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with XK2, now N ＇=N, and sideslip travel switch XK2 disconnects, and by after time delay 2-3 second, loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
Described automatic hydraulic deviation correcting device is also provided with manual manipulation mode, when automanual select switch ZXK gets to manual position,
1) as aligning support group is entered to promote in a needs left side, press bottom left and enter button (2SB), intermediate relay KA2 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF2 is energized, operation of oil pump promotes hydraulic stem to left movement, and hydraulic stem promotes an aligning support group left side and enters to realize M/C.
2) as aligning support group is entered to promote in the needs right side, press bottom right and enter button (1SB), intermediate relay KA1 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF1 is energized, operation of oil pump promotes hydraulic stem and moves right, and hydraulic stem promotes the aligning support group right side and enters to realize M/C.
This kind of belt conveyer automatic deviation rectifying device and the control method thereof with said structure have the following advantages:
1. this kind of belt conveyer automatic deviation rectifying device realizes from a series of continuous action of correction being detected by control program and hydraulic efficiency pressure system automatic process, can effectively correct belt deflection phenomenon in real time, ensure steady, the reliability service of load-transfer device, and structure is simple, economical and practical.
2. this kind of belt conveyer automatic deviation rectifying device can reduce and produce and the generation of equipment breakdown, reduces the load-transfer device torn edges or accident that cause due to sideslip, therefore, it is possible to the spare part material cost of reduction enterprise; Meanwhile, belt conveyer, by after arranging automatic hydraulic deviation correcting device, can reduce at conveyer personnel depaly on a production line, more reduce cost of human resources, save human and material resources.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of automatic deviation rectifying device in the present invention.
Fig. 2 is the electric control system schematic diagram of control system in the present invention.
Fig. 3 is the hydraulic control system schematic diagram of control system in the present invention.
In fig. 1-3,1: aligning roller rack; 2: aligning idler machining; 3: hydraulic stem; 4: fixed support; 5: sideslip travel switch; 6: control box; 7: Hydraulic Pump; 8: fuel tank; 9: gear type pump; 10: three-position four-way electromagnetic directional valve; 11: liquid control one-way throttle valve; 12: hydraulic actuating cylinder; 13: by pass valve; 14: flow regulating valve.
Detailed description of the invention
Fig. 1 is the structural representation of automatic deviation rectifying device in the present invention, this kind of automatic deviation rectifying device comprises by the conjuncted aligning idler machining 2 formed of multiple aligning roller rack 1, aligning roller rack 1 is connected with hydraulic stem 3 by bearing pin, ensure that aligning roller rack 1 does aligning motion by hydraulic stem 3, the afterbody of hydraulic stem 3 by hinge on load-transfer device fixed support 4; Automatic deviation rectifying device also comprise near head roll install, for catching the sideslip travel switch 5 of belt deflection signal, manufacturing line run signal is sent to by cable and is positioned at the other control box 6 arranged of load-transfer device, is provided with Hydraulic Pump 7, guidance panel and control system in control box 6.
Fig. 2, Fig. 3 are respectively electric control system schematic diagram and the hydraulic control system schematic diagram of control system in the present invention.Control system comprises electric control system and hydraulic control system, electric control system comprises major loop and control loop, major loop is made up of main power line, air switch (QF1), contactless switch (KM) and Oil pump electrical machinery (M), and control loop comprises control power supply, button, select switch, intermediate relay, time relay, sideslip travel switch; Hydraulic efficiency pressure system comprises fuel tank 8, gear type pump 9, three-position four-way electromagnetic directional valve 10, liquid control one-way throttle valve 11 and hydraulic actuating cylinder 12.
When close circuit is formed, Oil pump electrical machinery obtains electric drive gear type pump 9, and by three-position four-way electromagnetic directional valve 10 to hydraulic actuating cylinder 12 fuel feeding, hydraulic oil forms loop promotion hydraulic stem 3 and does one-way movement, and hydraulic stem 3 drives aligning idler machining 2 pairs of sideslip load-transfer devices to regulate.
When Oil pump electrical machinery power-off, gear type pump 9 stops to hydraulic actuating cylinder 12 fuel feeding, and hydraulic stem 3 drives aligning idler machining 2 stop motion; Hydraulic actuating cylinder 12 carrys out control presssure by liquid control one-way throttle valve 11, and by suitable pressure to realize the speed that aligning idler machining 2 adjusts sideslip load-transfer device, the adjustment of pressure regulates according to the Adjustment effect of site transport band sideslip.
When load-transfer device is without sideslip, both sides sideslip travel switch 5 disconnects, and Oil pump electrical machinery (M) must not be electric, and three-position four-way electromagnetic directional valve 10 is in meta; Work as belt deflection, sideslip travel switch 5 closing of contact, belt deflection signal detected, three-position four-way electromagnetic directional valve 10 coil is made to obtain electric by electric control loop, Oil pump electrical machinery (M) starts, and three-position four-way electromagnetic directional valve 10 is in position, side, and now hydraulic actuating cylinder 12 acts on, promote aligning idler machining 2, thus realize self-align effect; Adjust to load-transfer device when sideslip to depart from sideslip travel switch back contact and disconnect, by after time relay 2-3 second, Oil pump electrical machinery (M) quits work, and returns to readiness for action.
Be provided with by pass valve 13 between fuel tank 8 and three-position four-way electromagnetic directional valve 10, between liquid control one-way throttle valve 11 and hydraulic actuating cylinder 12, be provided with flow regulating valve 14.
Control method for above-mentioned belt conveyer automatic deviation rectifying device comprises:
1) when belt conveyer switch on power, start work time, TYK manufacturing line stoppage in transit cut-off switch is closed, ZXK automatic selector switch closes, now, if load-transfer device normally runs without deviation phenomenon, sideslip travel switch 5 i.e. XK1 and XK2 disconnects, loop is not formed closed, and control loop is in initial position, and hydraulic efficiency pressure system does not work;
2) when load-transfer device is when operational process is owing to making load-transfer device occur sideslip by side force N, the edge of sideslip load-transfer device will touch sideslip travel switch 5, loop is formed closed, time relay is energized, intermediate relay and three-position four-way electromagnetic directional valve energising subsequently, Oil pump electrical machinery forms loop starts, Hydraulic Cylinder hydraulic stem 3, hydraulic stem 3 drives aligning idler machining 2 to rotate, the axis of aligning roller rack 1 is made to become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining 2 produces friction force F1, F2, F3.
Concrete control method is: when load-transfer device is when operational process is owing to making load-transfer device to XK1 side sideslip by side force N, sideslip belt edges touches sideslip travel switch 5, i.e. XK1, loop is formed closed, time relay KT1 is energized, intermediate relay KA1 and three-position four-way electromagnetic directional valve DF1 energising after KT1 energising, Oil pump electrical machinery forms loop starts, hydraulic actuating cylinder promotes hydraulic stem 3 to the right, hydraulic stem 3 drives aligning idler machining 2 turning clockwise, the axis of aligning roller rack 1 is made to become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining 2 produces friction force F1, F2, F3.
Friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to sideslip travel switch XK2 side; When frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with sideslip travel switch XK1, now N ＇=N, sideslip travel switch XK1 disconnects, by after time delay 2-3 second, loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
When load-transfer device is when operational process is owing to making load-transfer device to sideslip travel switch XK2 side sideslip by side force N, sideslip belt edges touches sideslip travel switch 5, i.e. XK2, loop is formed closed, time relay KT2 is energized, after time relay KT2 is energized, intermediate relay KA2 and three-position four-way electromagnetic directional valve DF2 energising, Oil pump electrical machinery forms loop starts, hydraulic actuating cylinder promotes hydraulic stem 3 left, hydraulic stem 3 drives aligning idler machining 2 to turn left, the axis of aligning roller rack 1 is made to become to be less than the angle of 90 degree with running direction of conveyor belt, now, aligning idler machining 2 produces friction force F1, F2, F3.
Friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to XK1 side; When frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with XK2, now N ＇=N, and sideslip travel switch XK2 disconnects, and by after time delay 2-3 second, loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
Above-mentioned automatic hydraulic deviation correcting device is also provided with manual manipulation mode, when disconnection ZXK automatic selector switch, when selecting M/C QF1 switch,
1) as aligning support group 2 is entered to promote in a needs left side, press bottom left and enter button (2SB), intermediate relay KA2 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF2 energising, operation of oil pump promote hydraulic stem 3 to left movement, and hydraulic stem 3 promotes aligning support group 2 left side and enters to realize M/C;
2) as aligning support group 2 is entered to promote in the needs right side, press bottom right and enter button (1SB), intermediate relay KA1 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF1 is energized, operation of oil pump promotes hydraulic stem and moves right, and hydraulic stem 3 promotes aligning support group 2 right side and enters to realize M/C.
This kind of belt conveyer automatic deviation rectifying device realizes the automatic process from a series of continuous action of correction being detected by control program and hydraulic efficiency pressure system, can effectively correct belt deflection phenomenon in real time, ensure steady, the reliability service of load-transfer device, and structure is simple, economical and practical.
Claims (9)
1. a belt conveyer automatic deviation rectifying device, it is characterized in that: described automatic deviation rectifying device comprises by the conjuncted aligning idler machining (2) formed of multiple aligning roller rack (1), aligning roller rack (1) is connected with hydraulic stem (3) by bearing pin, ensure that aligning roller rack (1) does aligning motion by hydraulic stem (3), the afterbody of described hydraulic stem (3) by hinge on load-transfer device fixed support (4); Described automatic deviation rectifying device also comprise near head roll install, for catching the sideslip travel switch (5) of belt deflection signal, manufacturing line run signal is sent to by cable and is positioned at the other control box (6) arranged of load-transfer device, is provided with Hydraulic Pump (7), guidance panel and control system in described control box (6); Described control system comprises electric control system and hydraulic control system;
Described electric control system comprises major loop and control loop, major loop is made up of main power line, air switch QF1, contactless switch KM and Oil pump electrical machinery M, and control loop comprises control power supply, button, select switch, intermediate relay, time relay, sideslip travel switch;
Described hydraulic control system comprises fuel tank (8), gear type pump (9), three-position four-way electromagnetic directional valve (10), liquid control one-way throttle valve (11) and hydraulic actuating cylinder (12);
When close circuit is formed, Oil pump electrical machinery obtains electric drive gear type pump (9), by three-position four-way electromagnetic directional valve (10) to hydraulic actuating cylinder (12) fuel feeding, hydraulic oil forms loop promotion hydraulic stem (3) and does one-way movement, and hydraulic stem (3) drives aligning idler machining (2) to regulate sideslip load-transfer device;
When Oil pump electrical machinery power-off, gear type pump (9) stops to hydraulic actuating cylinder (12) fuel feeding, and hydraulic stem (3) drives aligning idler machining (2) stop motion; Described hydraulic actuating cylinder (12) carrys out control presssure by liquid control one-way throttle valve (11), and by suitable pressure to realize the speed of aligning idler machining (2) adjustment sideslip load-transfer device, the adjustment of pressure regulates according to the Adjustment effect of site transport band sideslip;
When load-transfer device is without sideslip, both sides sideslip travel switch (5) disconnect, and Oil pump electrical machinery M must not be electric, and three-position four-way electromagnetic directional valve (10) is in meta; Work as belt deflection, sideslip travel switch (5) closing of contact, belt deflection signal detected, three-position four-way electromagnetic directional valve (10) coil is made to obtain electric by the control loop of electric control system, Oil pump electrical machinery M starts, and three-position four-way electromagnetic directional valve (10) is in position, side, now hydraulic actuating cylinder (12) effect, promote aligning idler machining (2), thus realize self-align effect; Adjust to load-transfer device when sideslip to depart from sideslip travel switch back contact and disconnect, by after time relay 2-3 second, Oil pump electrical machinery M quits work, and returns to readiness for action.
2. for a control method for belt conveyer automatic deviation rectifying device according to claim 1, it is characterized in that: described control method is,
1) when belt conveyer switch on power, start work time, manufacturing line stoppage in transit cut-off switch TYK is closed, automatic selector switch ZXK closes, now, if load-transfer device normally runs without deviation phenomenon, sideslip travel switch XK1 and XK2 disconnects, control loop is not formed closed, and control loop is in initial position, and hydraulic control system does not work;
2) when load-transfer device is when operational process is owing to making load-transfer device occur sideslip by side force N, the edge of sideslip load-transfer device will touch sideslip travel switch (5), control loop is formed closed, time relay is energized, intermediate relay and three-position four-way electromagnetic directional valve energising subsequently, the major loop at Oil pump electrical machinery place closes, start working, Hydraulic Cylinder hydraulic stem (3), hydraulic stem (3) drives aligning idler machining (2) to rotate, the axis of aligning roller rack (1) and running direction of conveyor belt is made to become to be less than the angle of 90 degree, now, aligning idler machining (2) produces friction force F1, F2, F3.
3. the control method for belt conveyer automatic deviation rectifying device according to claim 2, it is characterized in that: when load-transfer device is when operational process is owing to making load-transfer device to sideslip travel switch XK1 side sideslip by side force N, sideslip belt edges touches sideslip travel switch XK1, control loop is formed closed, time relay KT1 is energized, after time relay KT1 is energized, intermediate relay KA1 and three-position four-way electromagnetic directional valve DF1 energising, the major loop at Oil pump electrical machinery place closes, start working, hydraulic actuating cylinder promotes hydraulic stem (3) to the right, hydraulic stem (3) drives aligning idler machining (2) turning clockwise, the axis of aligning roller rack (1) and running direction of conveyor belt is made to become to be less than the angle of 90 degree, now, aligning idler machining (2) produces friction force F1, F2, F3.
4. the control method for belt conveyer automatic deviation rectifying device according to claim 3, it is characterized in that: described friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to sideslip travel switch XK2 side.
5. the control method for belt conveyer automatic deviation rectifying device according to claim 4, it is characterized in that: when frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with sideslip travel switch XK1, now N ＇=N, sideslip travel switch XK1 disconnects, by after time delay 2-3 second, control loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
6. the control method for belt conveyer automatic deviation rectifying device according to claim 2, it is characterized in that: when load-transfer device is when operational process is owing to making load-transfer device to sideslip travel switch XK2 side sideslip by side force N, sideslip belt edges touches sideslip travel switch XK2, control loop is formed closed, time relay KT2 is energized, intermediate relay KA2 and three-position four-way electromagnetic directional valve DF2 energising after time relay KT2 is energized, the major loop at Oil pump electrical machinery place closes, start working, hydraulic actuating cylinder promotes hydraulic stem (3) left, hydraulic stem (3) drives aligning idler machining (2) to turn left, the axis of aligning roller rack (1) and running direction of conveyor belt is made to become to be less than the angle of 90 degree, now, aligning idler machining (2) produces friction force F1, F2, F3.
7. the control method for belt conveyer automatic deviation rectifying device according to claim 6, it is characterized in that: described friction force F1, F2, F3 produce frictional component f1, f2, f3 of vertical conveyor apron service direction respectively, and f1+f2+f3=N ＇ >N, now frictional component N ＇ makes sideslip load-transfer device adjust to sideslip travel switch XK1 side.
8. the control method for belt conveyer automatic deviation rectifying device according to claim 7, it is characterized in that: when frictional component N ＇ makes load-transfer device adjust to normal operational position, namely belt edges can not contact with sideslip travel switch XK2, now N ＇=N, sideslip travel switch XK2 disconnects, by after time delay 2-3 second, control loop disconnects load-transfer device and normally runs, and automatic deviation correction process stops.
9. the control method for belt conveyer automatic deviation rectifying device according to any one of claim 2-8 claim, it is characterized in that: described automatic hydraulic deviation correcting device is also provided with manual manipulation mode, as disconnection automatic selector switch ZXK, when selecting manual operation switch QF1
1) as aligning support group (2) is entered to promote in a needs left side, press bottom left and enter button 2SB, intermediate relay KA2 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF2 is energized, operation of oil pump promotes hydraulic stem (3) to left movement, and hydraulic stem (3) promotes aligning support group (2) left side and enters to realize M/C;
2) as aligning support group (2) is entered to promote in the needs right side, press bottom right and enter button 1SB, intermediate relay KA1 is energized, contactless switch KM C/LOOP is formed, three-position four-way electromagnetic directional valve DF1 is energized, operation of oil pump promotes hydraulic stem and moves right, and hydraulic stem promotes the aligning support group right side and enters to realize M/C.
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| CN112374070B (en) * | 2020-11-06 | 2022-07-19 | 中铁山河工程装备股份有限公司 | Belt type conveying and discharging device for shield machine |
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| CN201105908Y (en) * | 2007-08-28 | 2008-08-27 | 胡建军 | Passive hydraulic automatic strap rectifying machine |
| CN203199535U (en) * | 2013-03-28 | 2013-09-18 | 马钢(集团)控股有限公司 | Belt conveyor automatic deviation correcting device |
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| JPH0920415A (en) * | 1995-07-06 | 1997-01-21 | Sumitomo Metal Ind Ltd | Water pressure type belt self-aligning device |
| JPH11263419A (en) * | 1998-03-17 | 1999-09-28 | Kyoritsu Kinzoku Kogyo Kk | Meandering movement corrector in hydraulic belt conveyor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201105908Y (en) * | 2007-08-28 | 2008-08-27 | 胡建军 | Passive hydraulic automatic strap rectifying machine |
| CN203199535U (en) * | 2013-03-28 | 2013-09-18 | 马钢(集团)控股有限公司 | Belt conveyor automatic deviation correcting device |
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