CN102674182B - Rope damage prediction device for steel wire rope controlled by programmable logic controller - Google Patents
Rope damage prediction device for steel wire rope controlled by programmable logic controller Download PDFInfo
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- CN102674182B CN102674182B CN201210141319.7A CN201210141319A CN102674182B CN 102674182 B CN102674182 B CN 102674182B CN 201210141319 A CN201210141319 A CN 201210141319A CN 102674182 B CN102674182 B CN 102674182B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000005299 abrasion Methods 0.000 claims abstract description 7
- 238000013459 approach Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The invention discloses a rope damage prediction device for a steel wire rope controlled by a programmable logic controller. An upright post A and an upright post B of the device are arranged at the two ends of an upper support frame, a prediction switch A and a prediction switch B are arranged on the surfaces of the upright post A and the upright post C, an upright post B and an upright post D are arranged at the two ends of a bottom plate, in addition, a prediction switch B and a prediction switch D are arranged on the end surfaces of the upright post B and the upright post D, a guide wheel A is arranged on a guide wheel support frame through a guide wheel shaft A, a guide wheel B is arranged on the guide wheel support frame through a guide wheel shaft B, a position between the guide wheel A and the guide wheel B is used for passing the steel wire rope, one end of the steel wire rope is arranged on a rolling tube of a traction mechanism, a heavy object is arranged on the other end of the steel wire rope, one end of a support frame screw bolt A sequentially passes through a through hole A of the upper support frame, a press spring A, a through hole C of the guide rail support frame and a press spring B and is then connected onto a threaded hole A of the bottom plate through screw threads, one end of a support frame screw bolt B sequentially passes through a through hole B of the upper support frame, a press spring C, a through hole D of the guide rail support frame and a press spring D and is then connected into a threaded hole B of the bottom plate through screw threads, and the bottom plate is fixed with the traction mechanism. The device solves the problems to realize the effects that rope damage warning electric signals are given out when the abrasion of the steel wire rope is serious, so an object lifting or traction mechanism safely and reliably works, and the universality is realized.
Description
Technical field
The invention belongs to electromechanical automatic field of measuring technique, be specifically related to that object hoists or haulage gear in a kind of wire rope rope damage predictor.
Background technology
Numerous objects hoist or haulage gear in, all can use wire rope, in use procedure, can make steel rope abrasion, and nonstandard use, can accelerate wire rope and damage, this has just reduced, and object hoists or the reliability of haulage gear work, to equipment and personnel, will bring safety problem.For the sake of security, must often regularly replace wire rope.At present, not yet have a kind of can be applied in that multiple object hoists or haulage gear in, and the wire rope rope with versatility damages the work that predictor hoists object or haulage gear is safe and reliable.
Summary of the invention
The invention provides a kind of integrated design, blocking and use, simple in structure, reliable general object hoist or haulage gear in wire rope rope damage predictor.Apparatus of the present invention are sent rope and are damaged warning electric signal when steel rope abrasion is comparatively serious, and this signal can be used as operating personnel's warning signal, also can be used as that object hoists or the control signal of haulage gear equipment.Object is hoisted or the safe and reliable work of haulage gear, there is versatility.Apparatus of the present invention are applied in weight detection type apparatus for measuring charge level, and it is respond well.
A kind of wire rope rope by programmable logic controller (PLC) controls of the present invention damages predictor, and its A column (9A) and C column (9C) are arranged on the two ends of upper bracket (4); B column (9B) and D column (9D) are arranged on the two ends of base plate (6); A forecast switch (7A) is installed on the end face of A column (9A), B forecast switch (7B) is installed on the end face of B column (9B), C forecast switch (7C) is installed on the end face of C column (9C), D forecast switch (7D) is installed on the end face of D column (9D); It is upper that A guide wheel (1A) is arranged on wheel bracket (5) by A guide wheel shaft (2A), and B guide wheel (1B) is arranged on wheel bracket (5) by B guide wheel shaft (2B), and keep A guide wheel (1A) parallel with B guide wheel (1B); Between A guide wheel (1A) and B guide wheel (1B), for wire rope (12), pass,, on the reel of haulage gear, there is weight (11) one end of wire rope (12) on the other end of wire rope (12); One end of A support bracket bolt (3A) through after the C through hole (5A) of the A through hole (4A) of upper bracket (4), A stage clip (8A), rail brackets (5), B stage clip (8B), is threaded on the A threaded hole (6C) of base plate (6) in turn; One end of B support bracket bolt (3B) through after the D through hole (5B) of the B through hole (4B) of upper bracket (4), C stage clip (8C), rail brackets (5), D stage clip (8D), is threaded on the B threaded hole (6D) of base plate (6) in turn; The A mounting screw (6A) at base plate (6) through hole two ends and B mounting screw (6B) are realized base plate (6) and haulage gear are fixed.
Described wire rope rope damages predictor and passes through programmable logic controller (PLC) controls; In programmable logic controller (PLC), the trigger pip that the trigger pip that the trigger pip that the trigger pip of A forecast switch (7A) is designated as K1, C forecast switch (7C) is designated as K2, B forecast switch (7B) is designated as K3, D forecast switch (7D) is designated as K4; K1 and K2 are upper warning trigger pip, and K3 and K4 are lower warning trigger pip; K1, K2, K3 and K4 are connected with the input end in PLC programmable logic controller (PLC) respectively, and the alerting signal that PLC programmable logic controller (PLC) is exported is passed through K switch 0 and disconnected with closed, thereby the controller on the reel of realization and haulage gear completes electric signal transmission; K0=K1+K2+K3+K4, the logical relation of K1, K2, K3, K4 be or relation.
One end of wire rope 12 is along on the reel of haulage gear, and the other end of wire rope 12 runs through whole wire rope rope damage predictor by wire rope guide wheel (being that A guide wheel 1A, B guide wheel 1B constitute) and is connected with suspension hook weight.After wire rope 12 breakages, there will be burr, breakage is more serious, burr is more, when wire rope 12 operation downwards, rope damages upper part 12A and can be stuck between wire rope guide wheel, and under the effect of driving mechanism or weight 11, the elastic force that wire rope guide wheel drive wheel bracket 5 overcomes lower stage clip is to bottom offset, when the lower face of wheel bracket 5 touches or approach lower alarm switch, lower alarm switch sends rope and damages alerting signal.When wire rope 12 upwards moves, rope damages lower position 12B and also can be stuck between wire rope guide wheel, the elastic force that wire rope guide wheel drive wheel bracket 5 overcomes compression spring under the effect of driving mechanism is to top offset, when the upper face of wheel bracket 5 touches or approaches upper alarm switch, upper alarm switch sends rope and damages alerting signal.Upper and lower alarm switch can be that actuating type can be also the touch sensitive switch that approaches induction type or other form.At wire rope, harmless or micro-damage in the situation that, wire rope can pass through wire rope guide wheel smoothly.Wheel bracket 5, under the effect of the elastic force of upper and lower stage clip, is in centre position all the time.When needs are more during change steel rope, the guide wheel shaft of a side and guide wheel can be taken off, after installing, wire rope again guide wheel shaft and guide wheel are installed.Described wire rope rope damages the safety problem that predictor efficiently solves equipment and personnel.
The advantage that wire rope rope of the present invention damages predictor is:
1. by below upper bracket 4, base plate 6 above design forecast switch, while occurring contacting with wheel bracket upper and lower plates face by forecast switch, send rope and damage forecast electric signal, this rope damages the pre-alarm signal that forecast electric signal can be used as operating personnel, also can be used as that object hoists or the control signal of haulage gear equipment.Greatly improved that object hoists or haulage gear safe reliability.
2. novel in design: integrated design, blocking are used.
3. simple in structure: be convenient to manufacture and installation, reliable operation, there is versatility, can be applicable to that multiple object hoists or haulage gear in, there is promotional value.
4. apparatus of the present invention can be used as the compensation system use of drum rope groove wire rope angle of deviation certain angle, can greatly reduce the wearing and tearing of wire rope, prolonging service life of steel wire.
Accompanying drawing explanation
Fig. 1 is the vertical view that wire rope rope of the present invention damages predictor.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the structural drawing of guide wheel of the present invention.
Fig. 4 is the switch control flow chart that wire rope rope of the present invention damages predictor.
| 1A. |
101. |
102. |
103. foreign steamer limits |
| 1B. |
1C. steel-cable channel | 2A.A guide wheel shaft | 2B.B guide wheel shaft |
| 3A.A support bracket bolt | 3B.B support bracket bolt | 4. upper bracket | 4A.A through hole |
| 4B.B through |
4C. rectangular through- |
5. wheel bracket | 5A.C through hole |
| 5B.D through |
5C. rectangular through- |
6. base plate | 6A.A mounting screw |
| 6B.B mounting screw | 6C.A threaded hole | 6D.B threaded hole | 7A.A forecasts switch |
| 7B.B forecasts switch | 7C.C forecasts switch | 7D.D forecasts switch | 8A.A stage clip |
| 8B.B stage clip | 8C.C stage clip | 8D.D stage clip | 9A.A column |
| 9B.B column | 9C.C column | 9D.D column | 11. |
| 12. wire rope | 12A. rope damages |
12B. rope damages lower position |
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Shown in Fig. 1, Fig. 2, Fig. 3, the present invention is that a kind of wire rope rope by programmable logic controller (PLC) controls damages predictor, and this device includes A guide wheel 1A, B guide wheel 1B, A guide wheel shaft 2A, B guide wheel shaft 2B, A support bracket bolt 3A, B support bracket bolt 3B, upper bracket 4, wheel bracket 5, base plate 6, A forecast switch 7A, B forecast switch 7B, C forecast switch 7C, D forecast switch 7D, A stage clip 8A, B stage clip 8B, C stage clip 8C, D stage clip 8D, A column 9A, B column 9B, C column 9C, D column 9D, weight 11, wire rope 12.
(1) upper bracket 4
Shown in Fig. 1, Fig. 2, the center of upper bracket 4 is provided with rectangular through-hole 4C, and the both sides of this rectangular through-hole 4C are provided with A through hole 4A, B through hole 4B; A through hole 4A passes for one end of A support bracket bolt 3A; B through hole 4B passes for one end of B support bracket bolt 3B; Rectangular through-hole 4C passes through for wire rope 12.
The both sides of upper bracket 4 bottoms are separately installed with A column 9A and C column 9C; The end face of described A column 9A is provided with A forecast switch 7A; The end face of described C column 9C is provided with C forecast switch 7C.
(2) wheel bracket 5
Shown in Fig. 1, Fig. 2, the center of wheel bracket 5 is provided with rectangular through-hole 5C, and the both sides of this rectangular through-hole 5C are provided with C through hole 5A, D through hole 5B; C through hole 5A passes for one end of A support bracket bolt 3A; D through hole 5B passes for one end of B support bracket bolt 3B; In rectangular through-hole 5C, be placed with A guide wheel 1A and B guide wheel 1B.
For being installed, the A guide wheel shaft 2A of A guide wheel 1A is arranged on wheel bracket 5;
For being installed, the B guide wheel shaft 2B of B guide wheel 1B is arranged on wheel bracket 5;
Parallel in order to guarantee between A guide wheel 1A and B guide wheel 1B, therefore A guide wheel shaft 2A and B guide wheel shaft 2B keeping parallelism are arranged on wheel bracket 5.
In the present invention, between the A guide wheel 1A of parallel placement and B guide wheel 1B, formed a steel-cable channel 1C that can allow wire rope pass through, this steel-cable channel 1C passes through for wire rope 12, through wire rope 12 one end after steel-cable channel 1C, hang with weight 11, the other end of wire rope 12 is wrapped on the reel of haulage gear.
In the present invention, when the upper face of rail brackets 5 occurs contacting with C forecast switch 7C with A forecast switch 7A, A forecast switch 7A and C forecast switch 7C can trigger alarms.When the lower face of rail brackets 5 occurs contacting with D forecast switch 7D with B forecast switch 7B, B forecast switch 7B and D forecast switch 7D can trigger alarms.
(3) base plate 6
Shown in Fig. 1, Fig. 2, base plate 6 is provided with A threaded hole 6C, B threaded hole 6D; A threaded hole 6C is for the thread segment of the A support bracket bolt 3A that is threaded; B threaded hole 6D is for the thread segment of the B support bracket bolt 3B that is threaded.The A mounting screw 6A at base plate 6 through hole two ends and B mounting screw 6B realize base plate 6 and haulage gear are fixed.
The both sides on base plate 6 tops are separately installed with B column 9B and D column 9D; The end of described B column 9B is provided with B forecast switch 7B; The end of described D column 9D is provided with D forecast switch 7D.
In the present invention, upper bracket 4, wheel bracket 5 and base plate 6 are upper, middle and lower homogeneous texture, and upper bracket 4, wheel bracket 5 and base plate 6, by the installation of A support bracket bolt 3A and B support bracket bolt 3B, have formed the support body that wire rope rope of the present invention damages predictor.
In the present invention, base plate 6 damages by the wire rope rope of the present invention's design the below that predictor is arranged on reel in haulage gear by A mounting screw 6A and B mounting screw 6B.
(4) wire rope guide wheel
Shown in Fig. 1, Fig. 2, wire rope guide wheel includes A guide wheel 1A, B guide wheel 1B, A guide wheel shaft 2A and B guide wheel shaft 2B; A guide wheel 1A is identical with the structure of B guide wheel 1B; A guide wheel shaft 2A is identical with the structure of B guide wheel shaft 2B; A guide wheel 1A is arranged on wheel bracket 5 by A guide wheel shaft 2A; B guide wheel 1B is arranged on wheel bracket 5 by B guide wheel shaft 2B.
Shown in Figure 3, the middle part of A guide wheel 1A is semi-circular grooves 101, and the both sides of semi-circular grooves 101 are wheel rims 102, and the outside of wheel rim 102 is foreign steamer limits 103.
In the present invention, A guide wheel 1A is during with the parallel placement of B guide wheel 1B, and the semi-circular grooves 101 on A guide wheel 1A and semi-circular grooves on B guide wheel 1B form approximate closed circular hole, i.e. a steel-cable channel 1C.Described steel-cable channel 1C passes for wire rope 12.The length of described steel-cable channel 1C is greater than the twice of A guide wheel 1 diameter.
In the present invention, A guide wheel shaft 2A is the real mandrel of the certain length that thicker other end in one end is thinner, and thicker one end length is shorter, thinner one end diameter is slightly narrower than the internal diameter of A guide wheel 1A, length is longer than the width of wheel bracket 5, and end is drilled with split pin pin-and-hole, and pin is installed in pin-and-hole.When A guide wheel shaft 2A installs, run through through hole side by side of two of wheel bracket 5 front center line both sides, stage casing and the internal diameter of A guide wheel 1A, after installing, end adds plain cushion and pins with split pin.
The wire rope rope of the present invention design damage that predictor is arranged on that object hoists or haulage gear in the below of reel.
Shown in Figure 2, the wire rope rope of the present invention's design damages predictor and is symmetrical arranged with longitudinal centre line;
The first vertical line is provided with A column 9A, A forecast switch 7A, B forecast switch 7B and B column 9B from top to bottom;
The second vertical line is provided with A support bracket bolt 3A, A stage clip 8A and B stage clip 8B from top to bottom;
The 3rd vertical line is provided with B support bracket bolt 3B, C stage clip 8C and D stage clip 8D from top to bottom;
The 4th vertical line is provided with C column 9C, C forecast switch 7C, D forecast switch 7D and D column 9D from top to bottom.
In the present invention, A guide wheel 1A is identical with B guide wheel 1B structure, its profile is certain thickness circular configuration (as shown in Figure 3), A guide wheel 1A and B guide wheel 1B adopt two-wheel to be arranged symmetrically with structure, A guide wheel 1A is arranged on A guide wheel shaft 2A, B guide wheel 1B is arranged on B guide wheel shaft 2B, A guide wheel shaft 2A and B guide wheel shaft 2B are installed in parallel on wheel bracket 5, there is gap in wheel rim two wheel rims of the wheel rim of A guide wheel 1A and B guide wheel 1B, two-wheeled semi-circular grooves forms an approximate closed circular hole (steel-cable channel 1C), wire rope guarantees in operational process not deviate from by this circular hole exactly and outside wheel, drives two-wheel to go slick to reduce friction.
In the present invention, wheel bracket 5 profiles are the thin rectangular slab of thick both sides, stage casing section, stage casing thickness is slightly larger than the twice of both sides thickness, center, stage casing is processed with rectangular through holes (being rectangular through-hole 5C), through hole length is greater than the twice of wire rope guide wheel tip diameter, the wide thickness that is slightly larger than wire rope guide wheel in hole, is placed with A guide wheel 1A and B guide wheel 1B in this rectangular through-hole 5C.On both sides, center, the positive stage casing cross central line of described wheel bracket 5, be drilled with two through holes side by side, the installation for guide wheel shaft 2 with wire rope guide wheel 1, the pitch of holes in two holes is slightly larger than wire rope guide wheel wheel rim external diameter.
In the present invention, the profile of upper bracket 4 is certain thickness rectangular slab, center is processed with rectangular through holes, grow up in the twice of A guide wheel 1A wheel rim external diameter in through hole hole, hole is wider than the twice of A guide wheel 1A thickness, on the length direction center line of hole, both sides are drilled with two through holes (being A through hole 4A and B through hole 4B), for support bracket bolt 3, pass through, and two hole pitchs of holes equal the pitch of holes of two screw holes of base plate 6.
In the present invention, the profile of base plate 6 is certain thickness rectangular slab, center is processed with rectangular through holes (can be also manhole), rectangular through holes length equals the external profile diameter of A guide wheel 1A, width is greater than the twice of A guide wheel 1A thickness, on the length direction center line of hole, both sides are processed with two screw through-hole (being A threaded hole 6C and B threaded hole 6D), these two screw through-hole are for the installation of support bracket bolt 3, these two screw through-hole left and right sides are processed with two symmetrical through holes, by pass respectively A mounting screw 6A in two through holes, B mounting screw 6B realizes apparatus of the present invention and haulage gear is fixed.
In the present invention, the top that A stage clip 8A and C stage clip 8C are arranged on rail brackets 5 is called compression spring; The below that B stage clip 8B and D stage clip 8D are arranged on rail brackets 5 is called lower stage clip.It is upper that A stage clip 8A and B stage clip 8B are arranged on A support bracket bolt 3A, and C stage clip 8C and D stage clip 8D are arranged on B support bracket bolt 3B.The internal diameter of upper and lower stage clip is slightly larger than the stage casing external diameter of support bracket bolt, is highly greater than the true altitude of rope damage alarm switch up and down and adds thoughts and feelings distance, and elasticity is moderate.Described two lower stage clips are arranged on respectively between wheel bracket 5 and base plate 6 two guide wheels both sides, two compression springs be arranged on respectively wheel bracket 5 and upper bracket 4 between two guide wheels both sides.
In the present invention, described support bracket bolt (A support bracket bolt 3A, B support bracket bolt 3B) is the solid nut bar of certain length, and upper end is hexagonal (hexagon)nut, the solid polished rod that stage casing is, and hypomere is screw, screw length is slightly shorter than the thickness of base plate 6.Described two support bracket bolts are symmetrical to be installed, and hexagonal (hexagon)nut is upper, and whole nut bar runs through upper bracket 4, wheel bracket 5, compression spring, lower stage clip and screws in two screw holes that are connected to base plate 6, and makes upper and lower stage clip have certain elastic pressure.
Shown in Fig. 2, Fig. 4, in the present invention, alarm switch in A forecast switch 7A and C forecast switch 7C formation; B forecast switch 7B and D forecast switch 7D form lower alarm switch; Upper and lower alarm switch is actuating type or inductive switch, and upper and lower alarm switch is arranged on respectively base plate 6 above and the left and right sides of upper bracket 4 stage clip up and down below, also can all be arranged on the top and bottom of wheel bracket.
In programmable logic controller (PLC), the trigger pip that the trigger pip that the trigger pip that the trigger pip of A forecast switch 7A is designated as K1, C forecast switch 7C is designated as K2, B forecast switch 7B is designated as K3, D forecast switch 7D is designated as K4.K1 and K2 are upper warning trigger pip, and K3 and K4 are lower warning trigger pip.
K1, K2, K3 and K4 are connected with the input end in PLC programmable logic controller (PLC) respectively, the alerting signal that PLC programmable logic controller (PLC) is exported is passed through K switch 0 and is disconnected with closed, thereby the controller (or hoisting equipment) on the reel of realization and haulage gear completes electric signal transmission.K0=K1+K2+K3+K4, the logical relation of K1, K2, K3, K4 be or relation.
In the present invention, in order to realize the monitoring to wire rope 12 abrasion conditions, programmable logic controller (PLC) is treated to the upper warning trigger pip collecting and lower warning trigger pip:
Step 1: when having upper warning trigger pip to produce, judge whether K1, K2 equal early warning value, described early warning value is for designing the numerical value 1 in PLC programmable logic controller (PLC) chip, whether K1, K2 1;
Step 2: when having lower warning trigger pip to produce, judge whether K3, K4 equal early warning value, whether K3, K4 1;
Step 3: if K1, K2, K3, K4 all ≠ 1 o'clock, K switch 0 disconnects, and repeats wire rope and detects; Illustrate that the wireless damage of wire rope occurs, can judge wire rope and not be worn, or think that steel rope abrasion degree does not reach warning;
Step 4: if K1=1, or during K2=1, K switch 0 closure, in output, alerting signal has rope to damage start delay counter to wire rope, and described wire rope has rope to damage start delay counter to be designated as S;
If K3=1, or during K4=1, K switch 0 closure, the lower alerting signal of output has rope to damage start delay counter to wire rope, and described wire rope has rope to damage start delay counter to be designated as S;
Step 5: wire rope has rope to damage start delay counter S to wait for after timing in 5 seconds, rejudge K1, K2, whether K3, K4 equal early warning value;
Step 6: do not clock if arrive wait in 5 seconds, if K1, K2, K3, K4 are all ≠ 1, illustrate that wire rope has passed through guide wheel, now send the property a crossed rope and damage early warning, illustrate that wire rope is the in the situation that of micro-damage, it is shorter that damaged part is stuck in two times between wire rope guide wheel, and this state warns operating personnel to consider more change steel rope according to actual conditions;
If in K1, K2, K3, K4 any=1, wire rope can not pass through guide wheel, continues latency delays counter, judges whether S is greater than 5s;
Step 7: clock if surpass 5 seconds and wait for, and K1, K2, K3, K4 are all ≠ 1, now wire rope, also by guide wheel, sending rope and damaging early warning signal;
If surpassing wait in 5 seconds clocks, K1, K2, K3, in K4 any=1, illustrate that wire rope is in badly damaged situation, it is longer that wire rope damaged part is stuck in two times between wire rope guide wheel, now under the effect of driving mechanism or weight, the elastic force that wire rope guide wheel drive wheel bracket overcomes upper and lower stage clip is to bottom offset, make wheel bracket two ends touch or approach upper and lower alarm switch, make alarm switch K 1 or K2 or K3 or K4 closed for a long time, upper and lower alarm switch will send long rope and damage alerting signal and hoisting equipment parking order, and remove the stand-by period in delay counter S, warn in this state more change steel rope of operating personnel.
Wire rope rope by programmable logic controller (PLC) controls of the present invention damages being assembled into of predictor: A column 9A and C column 9C are arranged on the two ends of upper bracket 4; B column 9B and D column 9D are arranged on the two ends of base plate 6; A forecast switch 7A is installed on the end face of A column 9A, B forecast switch 7B is installed on the end face of B column 9B, C forecast switch 7C is installed on the end face of C column 9C, D forecast switch 7D is installed on the end face of D column 9D; A guide wheel 1A is arranged on wheel bracket 5 by A guide wheel shaft 2A, and B guide wheel 1B is arranged on wheel bracket 5 by B guide wheel shaft 2B, and keeps A guide wheel 1A parallel with B guide wheel 1B; Between A guide wheel 1A and B guide wheel 1B, for wire rope 12, pass,, on the reel of haulage gear, there is weight 11 one end of wire rope 12 on the other end of wire rope 12; A through hole 4A, the A stage clip 8A of upper bracket 4 are passed in turn, after C through hole 5A, the B stage clip 8B of rail brackets 5, be threaded on the A threaded hole 6C of base plate 6 in one end of A support bracket bolt 3A; B through hole 4B, the C stage clip 8C of upper bracket 4 are passed in turn, after D through hole 5B, the D stage clip 8D of rail brackets 5, be threaded on the B threaded hole 6D of base plate 6 in one end of B support bracket bolt 3B; The A mounting screw 6A at base plate 6 through hole two ends and B mounting screw 6B realize base plate 6 and haulage gear are fixed.Apparatus of the present invention have solved to be sent rope and damages warning electric signal when steel rope abrasion is comparatively serious, and this signal can be used as operating personnel's warning signal, also can be used as that object hoists or the control signal of haulage gear equipment.Object is hoisted or the safe and reliable work of haulage gear, there is versatility.
Conventionally one end of wire rope 12 is upper along the reel (or hoisting equipment) around haulage gear, and the weight 11 that the other end of wire rope 12 just can run through on whole wire rope rope damage predictor and suspension hook by wire rope guide wheel (being that A guide wheel 1A, B guide wheel 1B constitute) establishes a connection.After wire rope breakage, there will be burr, breakage is more serious, burr is more, when wire rope moves downwards, rope damages upper part 12A and can be stuck between wire rope guide wheel, and under the effect of driving mechanism or weight 11, the elastic force that wire rope guide wheel drive wheel bracket 5 overcomes two lower stage clips is to bottom offset, when lower alarm switch is touched or approaches at wheel bracket 5 two ends, lower alarm switch sends rope and damages alerting signal.When wire rope 12 upwards moves, rope damages lower position 12B and also can be stuck between wire rope guide wheel, the elastic force that wire rope guide wheel drive wheel bracket 5 overcomes compression spring under the effect of driving mechanism is to top offset, when wheel bracket 5 two ends are touched or approach upper alarm switch, upper alarm switch sends rope and damages alerting signal.Upper and lower alarm switch can be that actuating type can be also the touch sensitive switch that approaches induction type or other form.At wire rope, harmless or micro-damage in the situation that, wire rope can pass through steel-cable channel smoothly.Wheel bracket 5, under the effect of the elastic force of upper and lower stage clip, is in centre position all the time.When needs are more during change steel rope, two guide wheel shafts and two guide wheels of a side can be taken off, after installing, wire rope 12 again guide wheel shaft and guide wheel are installed.Described wire rope rope damages the safety problem that predictor efficiently solves equipment and personnel.
Claims (7)
1. the wire rope rope by programmable logic controller (PLC) controls damages predictor, described wire rope rope damages the below that predictor is arranged on reel in haulage gear, on the reel of haulage gear, be wound with wire rope (12), on the other end of wire rope (12), hang with weight (11); it is characterized in that: described wire rope rope damages predictor and includes A guide wheel (1A), B guide wheel (1B), A guide wheel shaft (2A), B guide wheel shaft (2B), A support bracket bolt (3A), B support bracket bolt (3B), upper bracket (4), wheel bracket (5), base plate (6), A forecasts switch (7A), B forecasts switch (7B), C forecasts switch (7C), D forecasts switch (7D), A stage clip (8A), B stage clip (8B), C stage clip (8C), D stage clip (8D), A column (9A), B column (9B), C column (9C), D column (9D),
A guide wheel (1A) is identical with the structure of B guide wheel (1B);
A guide wheel shaft (2A) is identical with the structure of B guide wheel shaft (2B);
A support bracket bolt (3A) is identical with the structure of B support bracket bolt (3B);
A forecast switch (7A), B forecast switch (7B), C forecast switch (7C) and D forecast switch (7D) are selected the switch of same form;
A stage clip (8A), B stage clip (8B), C stage clip (8C) are identical with the structure of D stage clip (8D);
A column (9A), B column (9B), C column (9C) are identical with the structure of D column (9D);
The center of upper bracket (4) is provided with rectangular through-hole (4C), and the both sides of this rectangular through-hole (4C) are provided with A through hole (4A), B through hole (4B); Rectangular through-hole (4C) is passed through for wire rope (12);
The both sides of upper bracket (4) bottom are separately installed with A column (9A) and C column (9C); The end face of described A column (9A) is provided with A forecast switch (7A); The end face of described C column (9C) is provided with C forecast switch (7C);
The center of wheel bracket (5) is provided with rectangular through-hole (5C), and the both sides of this rectangular through-hole (5C) are provided with C through hole (5A), D through hole (5B); In rectangular through-hole (5C), be placed with A guide wheel (1A) and B guide wheel (1B);
The A guide wheel shaft (2A) that is used for installing A guide wheel (1A) is arranged on wheel bracket (5);
The B guide wheel shaft (2B) that is used for installing B guide wheel (1B) is arranged on wheel bracket (5); And A guide wheel shaft (2A) and B guide wheel shaft (2B) keeping parallelism;
Between A guide wheel (1A) and B guide wheel (1B), there is steel-cable channel (1C);
Base plate (6) is provided with A threaded hole (6C), B threaded hole (6D); The A mounting screw (6A) at base plate (6) through hole two ends and B mounting screw (6B) are realized base plate (6) and haulage gear are fixed;
The both sides on base plate (6) top are separately installed with B column (9B) and D column (9D); The end of described B column (9B) is provided with B forecast switch (7B); The end of described D column (9D) is provided with D forecast switch (7D);
Wire rope guide wheel includes A guide wheel (1A), B guide wheel (1B), A guide wheel shaft (2A) and B guide wheel shaft (2B); A guide wheel (1A) is identical with the structure of B guide wheel (1B); A guide wheel shaft (2A) is identical with the structure of B guide wheel shaft (2B); A guide wheel (1A) is arranged on wheel bracket (5) by A guide wheel shaft (2A); It is upper that B guide wheel (1B) is arranged on wheel bracket (5) by B guide wheel shaft (2B), and A guide wheel shaft (2A) and B guide wheel shaft (2B) keeping parallelism;
Described wire rope rope damages being assembled into of predictor: A column (9A) and C column (9C) are arranged on the two ends of upper bracket (4); B column (9B) and D column (9D) are arranged on the two ends of base plate (6); A forecast switch (7A) is installed on the end face of A column (9A), B forecast switch (7B) is installed on the end face of B column (9B), C forecast switch (7C) is installed on the end face of C column (9C), D forecast switch (7D) is installed on the end face of D column (9D); It is upper that A guide wheel (1A) is arranged on wheel bracket (5) by A guide wheel shaft (2A), and B guide wheel (1B) is arranged on wheel bracket (5) by B guide wheel shaft (2B), and keep A guide wheel (1A) parallel with B guide wheel (1B); Between A guide wheel (1A) and B guide wheel (1B), for wire rope (12), pass,, on the reel of haulage gear, there is weight (11) one end of wire rope (12) on the other end of wire rope (12); One end of A support bracket bolt (3A) through after the C through hole (5A) of the A through hole (4A) of upper bracket (4), A stage clip (8A), rail brackets (5), B stage clip (8B), is threaded on the A threaded hole (6C) of base plate (6) in turn; One end of B support bracket bolt (3B) through after the D through hole (5B) of the B through hole (4B) of upper bracket (4), C stage clip (8C), rail brackets (5), D stage clip (8D), is threaded on the B threaded hole (6D) of base plate (6) in turn; The A mounting screw (6A) at base plate (6) through hole two ends and B mounting screw (6B) are realized base plate (6) and haulage gear are fixed.
2. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 damages predictor, it is characterized in that: described wire rope rope damages predictor and passes through programmable logic controller (PLC) controls; In programmable logic controller (PLC), the trigger pip that the trigger pip that the trigger pip that the trigger pip of A forecast switch (7A) is designated as K1, C forecast switch (7C) is designated as K2, B forecast switch (7B) is designated as K3, D forecast switch (7D) is designated as K4; K1 and K2 are upper warning trigger pip, and K3 and K4 are lower warning trigger pip;
K1, K2, K3 and K4 are connected with the input end in PLC programmable logic controller (PLC) respectively, and the alerting signal that PLC programmable logic controller (PLC) is exported is passed through K switch 0 and disconnected with closed, thereby the controller on the reel of realization and haulage gear completes electric signal transmission; K0=K1+K2+K3+K4, the logical relation of K1, K2, K3, K4 be or relation.
3. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 and 2 damages predictor, it is characterized in that programmable logic controller (PLC) being treated to the upper warning trigger pip collecting and lower warning trigger pip:
Step 1: when having upper warning trigger pip to produce, judge whether K1, K2 equal early warning value, described early warning value is for designing the numerical value 1 in PLC programmable logic controller (PLC) chip, whether K1, K2 1;
Step 2: when having lower warning trigger pip to produce, judge whether K3, K4 equal early warning value, whether K3, K4 1;
Step 3: if K1, K2, K3, K4 all ≠ 1 o'clock, K switch 0 disconnects, and repeats wire rope and detects; Illustrate that the wireless damage of wire rope occurs, can judge wire rope and not be worn, or think that steel rope abrasion degree does not reach warning;
Step 4: if K1=1, or during K2=1, K switch 0 closure, in output, alerting signal has rope to damage start delay counter to wire rope, and described wire rope has rope to damage start delay counter to be designated as S;
If K3=1, or during K4=1, K switch 0 closure, the lower alerting signal of output has rope to damage start delay counter to wire rope, and described wire rope has rope to damage start delay counter to be designated as S;
Step 5: wire rope has rope to damage start delay counter S to wait for after timing in 5 seconds, rejudge K1, K2, whether K3, K4 equal early warning value;
Step 6: do not clock if arrive wait in 5 seconds, if K1, K2, K3, K4 are all ≠ 1, illustrate that wire rope has passed through guide wheel, now send the property a crossed rope and damage early warning, illustrate that wire rope is the in the situation that of micro-damage, it is shorter that damaged part is stuck in two times between wire rope guide wheel, and this state warns operating personnel to consider more change steel rope according to actual conditions;
If in K1, K2, K3, K4 any=1, wire rope can not pass through guide wheel, continues latency delays counter, judges whether S is greater than 5s;
Step 7: clock if surpass 5 seconds and wait for, and K1, K2, K3, K4 are all ≠ 1, now wire rope, also by guide wheel, sending rope and damaging early warning signal;
If surpassing wait in 5 seconds clocks, K1, K2, K3, in K4 any=1, illustrate that wire rope is in badly damaged situation, it is longer that wire rope damaged part is stuck in two times between wire rope guide wheel, now under the effect of driving mechanism or weight, the elastic force that wire rope guide wheel drive wheel bracket overcomes upper and lower stage clip is to bottom offset, make wheel bracket two ends touch or approach upper and lower alarm switch, make alarm switch K 1 or K2 or K3 or K4 closed for a long time, upper and lower alarm switch will send long rope and damage alerting signal and hoisting equipment parking order, and remove the stand-by period in delay counter S, warn in this state more change steel rope of operating personnel.
4. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 damages predictor, it is characterized in that: upper bracket (4), wheel bracket (5) and base plate (6) are upper, middle and lower homogeneous texture, upper bracket (4), wheel bracket (5) and base plate (6), by the installation of A support bracket bolt (3A) and B support bracket bolt (3B), have formed the support body of wire rope rope damage predictor.
5. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 damages predictor, it is characterized in that: described wire rope rope damages predictor and is symmetrical arranged with longitudinal centre line;
The first vertical line is provided with A column (9A), A forecast switch (7A), B forecast switch (7B) and B column (9B) from top to bottom;
The second vertical line is provided with A support bracket bolt (3A), A stage clip (8A) and B stage clip (8B) from top to bottom;
The 3rd vertical line is provided with B support bracket bolt (3B), C stage clip (8C) and D stage clip (8D) from top to bottom;
The 4th vertical line is provided with C column (9C), C forecast switch (7C), D forecast switch (7D) and D column (9D) from top to bottom.
6. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 damages predictor, it is characterized in that: when contact appears in the upper face of rail brackets (5) and A forecast switch (7A) and C forecast switch (7C), A forecasts that switch (7A) and C forecast that switch (7C) can trigger alarm; When the lower face of rail brackets (5) occurs contacting with D forecast switch (7D) with B forecast switch (7B), B forecast switch (7B) and D forecast switch (7D) can trigger alarms.
7. a kind of wire rope rope by programmable logic controller (PLC) controls according to claim 1 damages predictor, it is characterized in that: A forecast switch (7A), B forecast switch (7B), C forecast switch (7C) and D forecast switch (7D) are selected touch switch or inductive switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141319.7A CN102674182B (en) | 2012-05-09 | 2012-05-09 | Rope damage prediction device for steel wire rope controlled by programmable logic controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210141319.7A CN102674182B (en) | 2012-05-09 | 2012-05-09 | Rope damage prediction device for steel wire rope controlled by programmable logic controller |
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| CN102674182B true CN102674182B (en) | 2014-02-19 |
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| CN105865698B (en) * | 2016-06-17 | 2023-08-25 | 浙江工业职业技术学院 | Silk thread tension measuring device |
| CN110902537A (en) * | 2019-12-11 | 2020-03-24 | 陈东辉 | Energy-saving mine hoist |
| CN113233363B (en) * | 2021-04-30 | 2022-07-19 | 八达机电有限公司 | Miniature electric hoist |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2154484Y (en) * | 1992-12-28 | 1994-01-26 | 重庆建筑工程学院 | Automatic detector for steel cable |
| CN101021507A (en) * | 2006-02-14 | 2007-08-22 | 王开济 | Intelligent virtual steel rope flow detector |
| CN100541168C (en) * | 2006-10-12 | 2009-09-16 | 上海交通大学 | The elevator tow-drive rolling-sliding contact fatigue wear testing machine |
| CN201429584Y (en) * | 2009-02-23 | 2010-03-24 | 浙江省电力公司 | Preventive nondestructive testing system for steel wire rope |
| CN201413309Y (en) * | 2009-04-23 | 2010-02-24 | 徐州中矿永宏科技有限公司 | Non-destructive testing device for simultaneous detection of four steel ropes |
| CN102175548B (en) * | 2011-03-21 | 2013-02-06 | 武汉理工大学 | Test device for abrasion of multilayer winding wire rope-pulley |
| CN202529771U (en) * | 2012-05-09 | 2012-11-14 | 北京金自天正智能控制股份有限公司 | Pre-alarm device of rope destruction of steel wire rope |
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