CN104495425A - Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof - Google Patents
Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof Download PDFInfo
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- CN104495425A CN104495425A CN201410764468.8A CN201410764468A CN104495425A CN 104495425 A CN104495425 A CN 104495425A CN 201410764468 A CN201410764468 A CN 201410764468A CN 104495425 A CN104495425 A CN 104495425A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
- B65G67/06—Feeding articles or materials from bunkers or tunnels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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Abstract
The invention relates to a three-stage coal drop pipe combination device with extending and contracting functions and an automatic control method thereof. Compared with prior art, the three-stage coal drop pipe combination device solves that the defect of incapability of randomly changing the length of a coal drop pipe. In the three-stage coal drop pipe combination device, the pipe diameter of a second-stage coal drop pipe is larger than that of a first-stage coal drop pipe; the second-stage coal drop pipe sleeves the first-stage coal drop pipe, and is hung on a first-stage convex ring through a second-stage check ring; the pipe diameter of a third-stage coal drop pipe is larger than that of the second-stage coal drop pipe; the third-stage coal drop pipe sleeves the second-stage coal drop pipe, and is hung on a second-stage convex ring through a third-stage check ring; a steel rope A is wound on a steel roller A; a steel rope B is wound on a steel roller B; the steel rope A is supported through a carrier roller A and a carrier roller B, and is connected with a hanging ring A; the position of the carrier roller B vertically corresponds to the hanging ring A; the steel rope B is supported through a carrier roller C and a carrier roller D and is connected with a hanging ring B; the position of the carrier roller D vertically corresponds to the hanging ring B. By adopting the three-stage coal drop pipe combination device and the automatic control method thereof, technical support can be provided for automatic running of a coal field according to the automatic height adjusting function of the coal field.
Description
Technical field
The present invention relates to coal handling system of power plant technical field, specifically a kind of three grades of coal spout combination units with retractable and autocontrol method thereof.
Background technology
Coal spout is the assembly of widespread use in the industries such as coal, harbour, thermoelectricity, coal dump station, washery, coal-burned industrial boiler.Coal spout is connected on coal breakage funnel, and falling material enters coal spout by coal breakage funnel, ensures material orderly stacking on the ground.
Get in coal equipment at traditional coal yard heap, coal spout is fixed by multistage pipeline welding, and its length can not change.If coal spout arranges long, cause bank accumulated amount very little; Coal spout arranges too short, seriously polluted when causing material to fall.And in recent years, the automatization level of power plant to fortune coal system heap reclaimer device requires more and more higher, the automation of fortune coal system heap reclaimer device brings the uncertainty of solid accumulation, the unalterable feature of tradition coal spout length becomes a large technical barrier of restriction coal yard windrow and transfer point blanking automatic operating, therefore how to develop and can become according to the coal spout of controlling level automatic telescopic the technical matters being badly in need of solving.
Summary of the invention
The object of the invention is can not the defect of random fluctuation in order to solve coal breakage length of tube in prior art, provides a kind of three grades of coal spout combination units with retractable and autocontrol method thereof to solve the problems referred to above.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of three grades of coal spout combination units with retractable, comprise one-level coal spout and bridge motor, the output shaft of bridge motor is provided with steel rider A and steel rider B, also comprise secondary coal spout and three grades of coal spouts, the one-level bulge loop around tube wall is provided with outside the tube wall of described one-level coal spout lower end, the secondary back-up ring around tube wall is provided with inside the tube wall of secondary coal spout upper end, the secondary bulge loop around tube wall is provided with outside the tube wall of secondary coal spout lower end, three grades of back-up rings around tube wall are provided with inside the tube wall of three grades of coal spout upper ends, link A and link B is respectively equipped with outside the tube wall of three grades of coal spout lower ends, position and the link B of link A are that mirror image is corresponding,
The caliber of secondary coal spout is greater than one-level coal spout, secondary coal spout to be enclosed within one-level coal spout and to hang on one-level bulge loop by secondary back-up ring, the caliber of three grades of coal spouts is greater than secondary coal spout, and three grades of coal spouts to be enclosed within secondary coal spout and to hang on secondary bulge loop by three grades of back-up rings;
Steel rider A is tied with steel cable A, steel rider B is tied with steel cable B, be connected with link A after steel cable A is supported by carrying roller A and carrying roller B and the position of carrying roller B is vertical with link A corresponding, steel cable B is by be connected with link B after carrying roller C and carrying roller D supporting and the position of carrying roller D is vertical with link B corresponding.
Also comprise magnetic clutch and retarder, the output shaft of described bridge motor is arranged on magnetic clutch, and magnetic clutch is arranged on the input shaft of retarder, and described steel rider A and steel rider B is arranged on the output shaft of retarder.
All liner plate is installed inside the tube wall of described one-level coal spout, secondary coal spout and three grades of coal spouts.
Be provided with limit switch outside the tube wall of described one-level coal spout, the control signal wire of limit switch is connected with bridge motor, and be provided with trigger board outside the tube wall of described secondary coal spout upper end, the installation site of trigger board is vertical corresponding with limit switch.
Also comprise radar level gauge A and radar level gauge B, radar level gauge A and radar level gauge B is arranged on the lower end of three grades of coal spouts, radar level gauge A and radar level gauge B is that mirror image is corresponding, and the range finding direction of radar level gauge A and radar level gauge B all down and intersect on the Y-axis extended line of three grades of coal spout center-points.
Also comprise main control chip, described radar level gauge A is connected with the data input pin of main control chip respectively with radar level gauge B, and main control chip is connected with the control end of bridge motor.
With an autocontrol method for three grades of coal spout combination units of retractable, comprise the following steps:
The vertical distance x of main control chip measuring and calculating dump vertex to three grade coal spout lower end;
To main control chip setting threshold height h, judge the mode of operation of bridge motor according to threshold level h and distance x;
When h-x≤0, main control chip controls bridge motor and does not start;
As 0 < h-x≤A+B, wherein, A is the length of secondary coal spout, and B is the length of three grades of coal spouts, and main control chip controls bridge motor and starts, and drives three grades of coal spouts to do upward movement by driving steel cable A and steel cable B;
As h-x > B, wherein, A is the length of secondary coal spout, and B is the length of three grades of coal spouts, and main control chip controls bridge motor and do not start.
The vertical distance x of described main control chip measuring and calculating dump vertex to three grade coal spout lower end comprises the following steps:
Calculate the position L of radar level gauge A to dump vertex, reach main control chip;
Calculate the position K of radar level gauge B to dump vertex, reach main control chip;
If the horizontal throw of radar level gauge A and radar level gauge B is m, main control chip calculates the angle theta of radar level gauge A and three grade of coal spout lower end, and its computing formula is as follows:
Main control chip calculates the vertical distance x of dump vertex to three grades of coal spout lower ends, and its computing formula is as follows:
x＝L·sinθ。
Beneficial effect
Three grades of coal spout combination units with retractable of the present invention and autocontrol method thereof, compared with prior art achieve the function automatically can shunk according to coal yard controlling level, for the automatic operating of coal yard provides technical support, improve the safety of fortune coal system heap reclaimer device operation and the continuity of work; And the controlling level signal that can receive according to radar level gauge sends instruction to motor, drive motor realizes the Telescopic of coal spout by the change of steel cable length, realizes Automated condtrol.This design has the advantages that structure is simple, practicality is stronger, with low cost, suitable for large-scale promotion.
Accompanying drawing explanation
Fig. 1 is the structural representation of combination unit in the present invention;
Fig. 2 is combination unit in-site installation schematic diagram in the present invention;
Fig. 3 is radar level gauge range measurement principle figure in the present invention;
Fig. 4 is the circuit theory connection diagram of main control chip in the present invention;
Wherein, 1-bridge motor, 2-magnetic clutch, 3-retarder, 4-steel rider A, 5-steel rider B, 7-steel cable A, 8-one-level coal spout, 9-secondary coal spout, 10-tri-grades of coal spouts, the scalable cabinet shell of 11-, 12-radar level gauge A, 13-liner plate, 14-limit switch, 15-coal breakage funnel, 16-concrete floor, 17-dump, 18-main control chip, 61-carrying roller A, 62-carrying roller B, 63-carrying roller C, 64-carrying roller D, 71-steel cable B, 81-one-level bulge loop, 91-secondary back-up ring, 92-secondary bulge loop, 93-trigger board, 101-tri-grades of back-up rings, 102-link A, 103-link B, 121-radar level gauge B.
Detailed description of the invention
For making to have a better understanding and awareness architectural feature of the present invention and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
As shown in Figure 1, a kind of three grades of coal spout combination units with retractable of the present invention, comprise one-level coal spout 8 and bridge motor 1, bridge motor 1 can with frequency converter.If Fig. 2 is as shown, one-level coal spout 8 is the coal spout body used in prior art, and it is contained on coal breakage funnel 15, and material enters one-level coal spout 8 from coal breakage funnel 15.The installation of bridge motor 1 can be arranged on concrete floor 16, also can be fixed on body of wall, fixes as long as play position.The output shaft of bridge motor 1 is provided with steel rider A4 and steel rider B5 by the mode of prior art, and steel rider A4 and steel rider B5 can be preferably the steel rider of band groove, drives steel rider A4 and steel rider B5 to rotate when bridge motor 1 works.
As shown in Figure 1, in order to reach the Telescopic of coal spout, also comprise secondary coal spout 9 and three grades of coal spouts 10.Be provided with the one-level bulge loop 81 around tube wall outside the tube wall of one-level coal spout 8 lower end, one-level bulge loop 81 outside the tube wall of one-level coal spout 8, and is positioned at the lower end of one-level coal spout 8, uses for installing secondary coal spout 9.The secondary back-up ring 91 around tube wall is provided with inside the tube wall of secondary coal spout 9 upper end, secondary back-up ring 91 is inside the tube wall of secondary coal spout 9, and be positioned at the upper end of secondary coal spout 9, for the installation coordinating one-level bulge loop 81 to carry out one-level coal spout 8 and secondary coal spout 9.The secondary bulge loop 92 around tube wall is provided with outside the tube wall of secondary coal spout 9 lower end, equally, secondary bulge loop 92 outside the tube wall of secondary coal spout 9, and is positioned at the lower end of secondary coal spout 9, carries out installing and using of secondary coal spout 9 and three grades of coal spouts 10 for coordinating three grades of back-up rings 101.Be provided with inside the tube wall of three grades of coal spout 10 upper ends around tube wall three grades of back-up rings, 101, three grades of back-up rings 101 and secondary back-up ring 91 in like manner, three grades of back-up rings 101 inside the tube wall of three grades of coal spouts 10, and are positioned at the upper end of three grades of coal spouts 10.Be respectively equipped with link A102 and link B103 outside the tube wall of three grades of coal spout 10 lower ends, link A102 and link B103 is used for steel cable to be fixed.Position and the link B103 of link A102 are that mirror image is corresponding, can drive the balance exercise of three grades of coal spouts 10 when ensureing steel cable pull-up.In actual applications, if coal spout is circular, the link A102 arranged by mirror image correspondence and link B103 can realize the pull-up motion of steel cable; If coal spout is square, then can considers to arrange several link more, coordinate many steel cables, realize the pull-up motion of coal spout.
The caliber of secondary coal spout 9 is greater than one-level coal spout 8, secondary coal spout 9 to be enclosed within one-level coal spout 8 and to hang on one-level bulge loop 81 by secondary back-up ring 91, then secondary coal spout 9 hangs over the lower end of one-level coal spout 8, by secondary back-up ring 91 hang over one-level bulge loop 81 carries out spacing, make secondary coal spout 9 can not carry out descending motion in the lower end of one-level coal spout 8, can only upward movement be carried out.In like manner, the caliber of three grades of coal spouts 10 is greater than secondary coal spout 9, three grades of coal spouts 10 and is enclosed within secondary coal spout 9 and is hung on secondary bulge loop 92 by three grades of back-up rings 101.Three grades of coal spouts 10 hang over the lower end of secondary coal spout 9, are hung over and secondary bulge loop 92 carry out spacing, make three grades of coal spouts 10 also can only carry out upward movement in the lower end of secondary coal spout 9 by three grades of back-up rings 101.
Steel rider A4 is tied with steel cable A7, steel rider B5 is tied with steel cable B71, steel cable A7 and steel cable B71 is used for pulling three grades of coal spouts 10 and using, and preferably uses GB hoist rope.Steel cable A7 is connected with link A102 after being supported with carrying roller B62 by carrying roller A61, the support pattern of carrying roller A61 and carrying roller B62 is determined according to the particular location cabling of camp site steel cable A7 by prior art, and carrying roller A61 and carrying roller B62 forms the supporting and location to steel cable A7.The position corresponding stretched vertically that under the supporting of carrying roller B62 can be formed link A102 vertical with link A102 of carrying roller B62.Steel cable B71 is connected with link B103 after being supported with carrying roller D64 by carrying roller C63, and the position of carrying roller D64 is vertical corresponding with link B103, and steel cable B71 can form the stretched vertically to link B103 under the supporting of carrying roller D64.Drive steel rider A4 and steel rider B5 to rotate by the work of bridge motor 1 like this, steel rider A4 and steel rider B5 drives again, the synchronous vertical motion of steel cable A7 and steel cable B71, and then drives rising or the decline of three grades of coal spouts 10.
During in order to adapt to further transport coal measures system windrow, the mode of operation such as frequent starting, braking, can also comprise magnetic clutch 2 and retarder 3.
Magnetic clutch 2 can be engaged by control signal when equipment works or be separated diaxon, ensures equipment safe operation under the mode of operation such as frequent starting, braking.Retarder 3 can adopt worm and gear speed-reduction apparatus, because worm gear device has, transmitting ratio is large, the feature of compact conformation, stable drive, in addition auto-lock function is also had, when not needing to change in coal spout position, the auto-lock function of worm and gear can guarantee stability and the safety of whole system, therefore also separately need not establish self-locking device.Magnetic clutch 2 is connected to the output shaft of bridge motor 1 and the input shaft of retarder 3, and steel rider A4 and steel rider B5 is arranged on the output shaft of retarder 3.The installation of steel rider A4, steel rider B5 and retarder 3 output shaft can use spline joint, and spline joint has reliable transmission, centering is good, transmitting torque is large feature, uses spline to ensure that the relative position of steel rider and axle does not change; Increase lock washer and locking nut at the tip of the axis simultaneously, guarantee the fixing of the part axial positions such as steel rider.
In order to increase the resistance to abrasion of coal spout inwall, inside the tube wall of one-level coal spout 8, secondary coal spout 9 and three grades of coal spouts 10, liner plate 13 is all installed.Liner plate 13 is abrasion-proof backing block, and thickness is more than or equal to 10mm, and it not only can reduce the scouring action to coal spout when material falls, and also can overcome friction each other when coal spout shrinks, the service life of extension device.When practical application, according to field condition, a scalable cabinet shell 11 (fold cloth) can also be set in the periphery of one-level coal spout 8, secondary coal spout 9 and three grades of coal spout 10 entirety, effectively can stop that coal dust access arrangement is inner.
Caliber due to three grades of coal spouts 10 is greater than secondary coal spout 9, three grades of coal spouts 10 and is pulled in the process of rising by steel cable A7 and steel cable B71, and its rising trace should be carried out in the length range of secondary coal spout 9.If three grades of coal spouts 10 rise too much, exceed the length of secondary coal spout 9, not only may occur that the lower end dislocation of three grades of coal spouts 10 drops on the upper end of secondary coal spout 9, and three grades of coal spouts 10 also may break coal breakage funnel 15 or concrete floor 16 because it rises.Therefore, outside the tube wall of one-level coal spout 8, limit switch 14 can be installed, the position that limit switch 14 is arranged on one-level coal spout 8 is determined according to the height of three grades of coal spouts 10, coal breakage funnel 15 or concrete floors 16 in practice of construction, and its quantity also can be 2.The control signal wire of limit switch 14 is connected with bridge motor 1, triggers limit switch 14 changes drop-gear box 3 output shaft mode of operation by bridge motor 1.Be provided with trigger board 93 outside the tube wall of secondary coal spout 9 upper end, trigger board 93 can be 2, and the installation site of trigger board 93 is vertical corresponding with limit switch 14.When three grades of coal spouts 10 rise, upward movement under the track of secondary coal spout 9, when the upper end of three grades of coal spouts 10 is concordant with the upper end of secondary coal spout 9, three grades of coal spouts 10 head on trigger board 93, drive secondary coal spout 9 to rise together, thus trigger limit switch 14, impel bridge motor 1 to quit work, now the input shaft of drop-gear box 3 stops operating, and ensure that the safety of device.
In order to realize the Automated condtrol that three grades of coal spouts 10 move, can also comprise radar level gauge A12 and radar level gauge B121, radar level gauge A12 and radar level gauge B121 is prior art products, and it can measure the distance between stockpile and radar level gauge.Radar level gauge A12 and radar level gauge B121 is arranged on the lower end of three grades of coal spouts 10, particular location can outside tube wall, also can inside tube wall, playing a fixed position can (suggestion be placed on outside tube wall, if be placed in inside tube wall, washing away the damage of level-sensing device of materials inside is too serious).Radar level gauge A12 and radar level gauge B121 is that mirror image is corresponding, and the range finding direction of radar level gauge A12 and radar level gauge B121 all down and intersect on the Y-axis extended line of three grades of coal spout 10 center-points.
Radar level gauge A12 and radar level gauge B121, by prior art content, can connect separately main control chip and control bridge motor 1, also directly can access in coal handling system of power plant and carry out unifying to control.As shown in Figure 4, when selecting access main control chip 18, radar level gauge A12 is connected with the data input pin of main control chip 18 respectively with radar level gauge B121, and the range data that radar level gauge A12 and radar level gauge B121 is recorded is issued main control chip 18 and calculated.Main control chip 18 is connected with the control end of bridge motor 1, and main control chip 18 selects the control to bridge motor 1 according to result of calculation.Propose a kind of autocontrol method of three grades of coal spout combination units with retractable for main control chip 18, radar level gauge A12 and radar level gauge B121, comprise the following steps:
The first step, main control chip 18 calculates the vertical distance x of dump 17 vertex to three grade coal spout 10 lower end.Because radar level gauge A12 and radar level gauge B121 is arranged on three grades of coal spouts 10, but not center position, therefore the data apart from dump 17 that radar level gauge A12 or radar level gauge B121 surveys are oblique line distances, but not vertical distance, therefore the calculating carrying out vertical distance x is needed, its concrete steps are as follows, as shown in Figure 3.
(1) utilize self function of radar level gauge A12 to measure the position L of radar level gauge A12 to dump vertex, and reach main control chip 18.
(2) utilize self function of radar level gauge B121 to calculate the position K of radar level gauge B121 to dump vertex, and reach main control chip 18.
(3) set the horizontal throw of radar level gauge A12 and radar level gauge B121 as m, be the straight-line distance of radar level gauge A12 and radar level gauge B121.Main control chip 18 calculates the angle theta of radar level gauge A12 and three grade coal spout 10 lower end, and its computing formula is as follows:
(4) main control chip 18 calculates the vertical distance x of dump 17 vertex to three grades of coal spout 10 lower ends, and its computing formula is as follows:
x＝L·sinθ。
Second step, setting threshold height h, main control chip 18 judges the mode of operation of bridge motor 1 according to threshold level h and distance x.Threshold level h is the distance of acceptable three grades of coal spout 10 to dump 17 vertexs.
When h-x≤0, to illustrate that when first three grade of coal spout 10 dump 17 still can carry out material stacking from dump 17 apart from away from also, therefore main control chip 18 controls bridge motor 1 and does not start, and coal spout length is constant, and stacker device and coal spout work on.
As 0 < h-x≤A+B, wherein, A is the length of secondary coal spout 9, and B is the length of three grades of coal spouts 10.Illustrate now dump 17 from three grades of coal spouts 10 too close to, cannot continue stack.Main control chip 18 controls bridge motor 1 and starts, by magnetic clutch 2 and drop-gear box 3, rotating speed is passed to steel rider A4 and steel rider B5, the rotation of steel rider A4 and steel rider B can cause rotation and the winding of steel cable A7 and steel cable B71, by the length changing steel cable A7 and steel cable B71, third stage coal spout 10 is upwards promoted, namely by driving steel cable A7 and steel cable B71 to drive three grades of coal spouts (10) to do upward movement, thus continue to carry out windrow operation to dump 17.
As h-x > B (or when secondary coal spout 9 touches limit switch 14), equally, A is the length of secondary coal spout 9, and B is the length of three grades of coal spouts 10.Illustrate that now three grades of coal spouts 10 rise to vertex, also reach the vertex of dump 17 stockpile.Now, the diff-H between three grades of coal spouts 10 and dump 17 vertex can not meet demand for security, so time system will quit work and send alerting signal, main control chip 18 controls bridge motor 1 hard stop, windrow end-of-job.
More than show and describe groundwork of the present invention, principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (8)
1. three grades of coal spout combination units with retractable, comprise one-level coal spout (8) and bridge motor (1), the output shaft of bridge motor (1) is provided with steel rider A(4) and steel rider B(5), it is characterized in that: also comprise secondary coal spout (9) and three grades of coal spouts (10), the one-level bulge loop (81) around tube wall is provided with outside the tube wall of described one-level coal spout (8) lower end, the secondary back-up ring (91) around tube wall is provided with inside the tube wall of secondary coal spout (9) upper end, the secondary bulge loop (92) around tube wall is provided with outside the tube wall of secondary coal spout (9) lower end, three grades of back-up rings (101) around tube wall are provided with inside the tube wall of three grades of coal spout (10) upper ends, link A(102 is respectively equipped with outside the tube wall of three grades of coal spout (10) lower ends) and link B(103), link A(102) position and link B(103) corresponding in mirror image,
The caliber of secondary coal spout (9) is greater than one-level coal spout (8), secondary coal spout (9) is enclosed within one-level coal spout (8) and goes up and hang on one-level bulge loop (81) by secondary back-up ring (91), the caliber of three grades of coal spouts (10) is greater than secondary coal spout (9), and three grades of coal spouts (10) are enclosed within secondary coal spout (9) and go up and hang on secondary bulge loop (92) by three grades of back-up rings (101);
Steel rider A(4) on be tied with steel cable A(7), steel rider B(5) on be tied with steel cable B(71), steel cable A(7) by carrying roller A(61) with carrying roller B(62) after supporting with link A(102) be connected and carrying roller B(62) and position and link A(102) vertical corresponding, steel cable B(71) by carrying roller C(63) with carrying roller D(64) support afterwards with link B(103) be connected and carrying roller D(64) and position and link B(103) vertical corresponding.
2. a kind of three grades of coal spout combination units with retractable according to claim 1, it is characterized in that: also comprise magnetic clutch (2) and retarder (3), the output shaft of described bridge motor (1) is arranged on magnetic clutch (2), magnetic clutch (2) is arranged on the input shaft of retarder (3), described steel rider A(4) and steel rider B(5) be arranged on the output shaft of retarder (3).
3. a kind of three grades of coal spout combination units with retractable according to claim 1, is characterized in that: be all provided with liner plate (13) inside the tube wall of described one-level coal spout (8), secondary coal spout (9) and three grades of coal spouts (10).
4. a kind of three grades of coal spout combination units with retractable according to claim 1, it is characterized in that: outside the tube wall of described one-level coal spout (8), limit switch (14) is installed, the control signal wire of limit switch (14) is connected with bridge motor (1), be provided with trigger board (93) outside the tube wall of described secondary coal spout (9) upper end, the installation site of trigger board (93) is vertical corresponding with limit switch (14).
5. a kind of three grades of coal spout combination units with retractable according to claim 1, it is characterized in that: also comprise radar level gauge A(12) and radar level gauge B(121), radar level gauge A(12) and radar level gauge B(121) be arranged on the lower end of three grades of coal spouts (10), radar level gauge A(12) and radar level gauge B(121) corresponding in mirror image, radar level gauge A(12) and radar level gauge B(121) range finding direction all down and intersect on the Y-axis extended line of three grades of coal spout (10) center-points.
6. a kind of three grades of coal spout combination units with retractable according to claim 5, it is characterized in that: also comprise main control chip (18), described radar level gauge A(12) with radar level gauge B(121) be connected with the data input pin of main control chip (18) respectively, main control chip (18) is connected with the control end of bridge motor (1).
7. the autocontrol method of a kind of three grades of coal spout combination units with retractable according to claim 6, is characterized in that, comprise the following steps:
71) the vertical distance x of main control chip (18) measuring and calculating dump (17) vertex to three grade coal spout (10) lower end;
72) to main control chip (18) setting threshold height h, the mode of operation of bridge motor (1) is judged according to threshold level h and distance x;
When h-x≤0, main control chip (18) controls bridge motor (1) and does not start;
As 0 < h-x≤A+B, wherein, A is the length of secondary coal spout (9), B is the length of three grades of coal spouts (10), main control chip (18) controls bridge motor (1) and starts, by driving steel cable A(7) and steel cable B(71) drive three grades of coal spouts (10) to do upward movement;
As h-x > B, wherein, A is the length of secondary coal spout (9), and B is the length of three grades of coal spouts (10), and main control chip (18) controls bridge motor (1) and do not start.
8. the autocontrol method of a kind of three grades of coal spout combination units with retractable according to claim 7, it is characterized in that, the vertical distance x of described main control chip (18) measuring and calculating dump vertex to three grade coal spout (10) lower end comprises the following steps:
81) radar level gauge A(12 is calculated) to the position L of dump vertex, reach main control chip (18);
82) radar level gauge B(121 is calculated) to the position K of dump vertex, reach main control chip (18);
83) set radar level gauge A(12) with radar level gauge B(121) horizontal throw as m, main control chip (18) calculates radar level gauge A(12) with the angle theta of three grades of coal spout (10) lower ends, its computing formula is as follows:
；
84) main control chip (18) calculates the vertical distance x of dump (17) vertex to three grades of coal spout (10) lower ends, and its computing formula is as follows:
。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764468.8A CN104495425A (en) | 2014-12-12 | 2014-12-12 | Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410764468.8A CN104495425A (en) | 2014-12-12 | 2014-12-12 | Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof |
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| CN104495425A true CN104495425A (en) | 2015-04-08 |
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| CN201410764468.8A Pending CN104495425A (en) | 2014-12-12 | 2014-12-12 | Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof |
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| CN105398839A (en) * | 2015-12-17 | 2016-03-16 | 洛阳瑞临煤炭物资有限公司 | Coal filling and unloading telescopic device |
| CN105417216A (en) * | 2015-12-17 | 2016-03-23 | 洛阳瑞临煤炭物资有限公司 | Material orifice dust collecting device |
| CN108190452A (en) * | 2017-10-17 | 2018-06-22 | 枣庄大兴矿业有限责任公司 | Extension type coal conduit |
| CN108909470A (en) * | 2018-05-10 | 2018-11-30 | 常熟理工学院 | It is automatically positioned charging system |
| CN109018984A (en) * | 2018-08-13 | 2018-12-18 | 唐山开元自动焊接装备有限公司 | A kind of circular tube conveyor structure with automatic transmission and barrier functionality |
| CN109132244A (en) * | 2017-06-16 | 2019-01-04 | 江苏万华液压机电有限公司 | A kind of electric expansion coal spout |
| CN109941782A (en) * | 2018-12-29 | 2019-06-28 | 中国神华能源股份有限公司 | The chute length regulating method of ship loader and ship loader |
| CN112693911A (en) * | 2020-12-11 | 2021-04-23 | 湖南汽车工程职业学院 | Telescopic chute system for environment-friendly intelligent stock yard stockpiling and control method |
| CN113548364A (en) * | 2021-08-23 | 2021-10-26 | 华电重工股份有限公司 | Dust suppression structure and coal conveying and crushing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105398839A (en) * | 2015-12-17 | 2016-03-16 | 洛阳瑞临煤炭物资有限公司 | Coal filling and unloading telescopic device |
| CN105417216A (en) * | 2015-12-17 | 2016-03-23 | 洛阳瑞临煤炭物资有限公司 | Material orifice dust collecting device |
| CN109132244A (en) * | 2017-06-16 | 2019-01-04 | 江苏万华液压机电有限公司 | A kind of electric expansion coal spout |
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| CN109018984B (en) * | 2018-08-13 | 2023-11-17 | 唐山开元自动焊接装备有限公司 | Pipe conveying mechanism with automatic transmission and blocking functions |
| CN109941782A (en) * | 2018-12-29 | 2019-06-28 | 中国神华能源股份有限公司 | The chute length regulating method of ship loader and ship loader |
| CN112693911A (en) * | 2020-12-11 | 2021-04-23 | 湖南汽车工程职业学院 | Telescopic chute system for environment-friendly intelligent stock yard stockpiling and control method |
| CN113548364A (en) * | 2021-08-23 | 2021-10-26 | 华电重工股份有限公司 | Dust suppression structure and coal conveying and crushing system |
| CN113548364B (en) * | 2021-08-23 | 2024-05-03 | 华电重工股份有限公司 | Dust suppression structure and coal conveying and crushing system |
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Application publication date: 20150408 |