CN101513979A - Calibration method of load lifting limiter and device thereof - Google Patents
Calibration method of load lifting limiter and device thereof Download PDFInfo
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- CN101513979A CN101513979A CNA2009100303677A CN200910030367A CN101513979A CN 101513979 A CN101513979 A CN 101513979A CN A2009100303677 A CNA2009100303677 A CN A2009100303677A CN 200910030367 A CN200910030367 A CN 200910030367A CN 101513979 A CN101513979 A CN 101513979A
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Abstract
The invention relates to a calibration method of load lifting limiter; two ends of a hoisting cable are respectively connected with a benchmark sensor which is connected with a frame, the top part of the hoisting cable is supported on a fixed pulley, more than four lateral-pressure type sensors are respectively held on the hoisting cables at two sides of the fixed pulley, the benchmark sensor is connected with a benchmark instrument arranged on the frame by a signal wire, each lateral-pressure type sensor is connected with an indicating instrument by the signal wire, a pulley base and the fixed pulley are ejected to move upwards by a piston pole of a hydraulic ram is, the hoisting cable is stretched, and the tension force of the hoisting cable is acted on the lateral-pressure type sensors and the benchmark sensor, based on the benchmark sensor which detects when the hoisting cable has no weighting and full weighting, no weighting signal and full weighting signal are respectively input to each instrument, and each lateral-pressure type sensor and the corresponding instrument are calibrated. The calibration method has the characteristics of convenient loading and unloading of the lateral-pressure type sensor and stable measurement, and the calibration efficiency is improved.
Description
Technical field
This invention relates to a kind of calibration method and device thereof of load lifting limiter, belongs to the load lifting limiter technical field.
Background technology
Load lifting limiter is mainly to be made up of side-compression sensor, weighing instrument, power control box etc., is used for weight-lifting equipment, prevents a kind of safety guard that weight-lifting equipment moves under overload condition.During use just steel rope directly be embedded in side-compression sensor two side channels, steel wire rope tension is converted into the pressure that the side-compression sensor bears the lifting thing is measured.In the production, need go forward side by side rower calmly to each load lifting limiter measurement.Measuring timing signal, by captive nut and briquetting the side-compression sensor clip is held on the steel cable, steel rope one end is connected on the support by reference sensor, steel rope is walked around pulley and is connected with cylinder, by cylinder action stretching steel rope, steel wire rope tension is acted on side-compression sensor and reference sensor,, side-compression sensor and cooresponding weighing instrument are measured demarcation according to the output valve of reference sensor.But this calibration method once can only be measured demarcation to a side-compression sensor, owing to need operating nut and briquetting to load and unload the side-compression sensor at every turn, operates comparatively loaded down with trivial details, labour intensity is big, because non-cutting time is longer, causes the whole calibrating time long, demarcation efficient is low.In addition, adopt cylinder stretching steel rope, cause the tension force instability on the steel rope, and influence measuring stability.
Summary of the invention
The purpose of this invention is to provide a kind of loading and unloading side-compression sensor convenience, measure and stablize, can improve the calibration method and the device thereof of the load lifting limiter of demarcating efficient.
The present invention is that the technical scheme that achieves the above object is: a kind of calibration method of load lifting limiter, it is characterized in that: the steel rope two ends are connected with reference sensor respectively, reference sensor is connected with support, the steel rope top-supported is on fixed pulley, side-compression sensor more than four is clamped in respectively on the steel rope of fixed pulley both sides, reference sensor is connected with master meter on being installed in support by signal wire (SW), each side-compression sensor is connected with separately display instrument by signal wire (SW), the piston rod of hydraulic ram heads on pulley base and the fixed pulley and moves, the stretching steel rope, steel rope acts on tension force on each side-compression sensor and the reference sensor, detect steel rope when no weighing and the full weighing according to reference sensor, import no weighing signal and full weighing signal respectively to each instrument, each side-compression sensor and cooresponding instrument are demarcated.
The present invention is the caliberating device of a kind of load lifting limiter of achieving the above object, comprise support, reference sensor, steel rope is characterized in that with master meter: the two ends of described steel rope are connected with reference sensor respectively, reference sensor is connected with the support bottom, reference sensor is connected with master meter on being installed in support by signal wire (SW), steel rope is bearing on the fixed pulley, the support top is connected with guiding mechanism, guiding mechanism is by the top guide bar seat, lower guide rod seat and be connected on top guide bar seat and the lower guide rod seat two and constitute with top guide bar, the pulley base both sides that fixed pulley is installed are set on two guide rods, pulley base be installed in support on the piston rod of hydraulic ram be connected; Sensor more than four clamps mechanism and is connected on the steel rope by sling, sensor clamps mechanism and comprises bearing, frame support and depression bar, frame support with sensor slot is connected on the bearing, steel wire penetrating sensor slot, the depression bar that has a pressure head are screwed on the frame support and are relative with steel rope; Meter base and source switch more than four are installed on the support.
The present invention supports steel rope by fixed pulley, and the two ends of steel rope are connected with support with two reference sensors respectively, not influenced by the frictional resistance between fixed pulley and the steel rope, the steel wire rope tension of the every side of reference sensor is consistent fully, adopt hydraulic ram stretching steel rope, and under the effect of guiding mechanism, steel rope can stretch stably in addition, the tension stability of steel rope is so can demarcate two above load lifting limiters of one side by reference sensor.The present invention has improved demarcation efficient significantly owing to once can demarcate the load lifting limiter more than four.The present invention is equipped with sensor and clamps mechanism on steel rope, by bearing and the frame support that is connected on the bearing side-compression sensor is located, only need the operation depression bar that steel rope is pressed and the side-compression sensor is installed in sensor and clamps mechanism or unclamp, loading and unloading side-compression sensor is convenient to operation, reduce labour intensity, increased substantially the installation effectiveness of side-compression sensor.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the backsight structural representation of Fig. 1.
Fig. 3 is the structural representation that sensor of the present invention clamps mechanism.
Fig. 4 is the A-A sectional structure scheme drawing of Fig. 3.
Wherein: 1-Connection Block, 2-reference sensor, 3-cover of wedge, 4-steel rope, the 5-support, 6-hydraulic ram, 6-1-piston rod, 7-guiding mechanism, 7-1-lower guide rod seat, 7-2-guide rod, 7-3-top guide bar seat, 8-pulley base, the 9-master meter, the 10-fixed pulley, 11-side-compression sensor, the 12-sensor clamps mechanism, the 12-1-bearing, the inboard facade of 12-11-, locations under the 12-12-, 12-13-dihedral base, 12-2-frame support, 12-21-back plate, the 12-22-pipe link, 12-23-pressing plate, 12-24-sensor slot, the 12-3-depression bar, 12-31-pressure head, 12-32-handwheel, the 13-sling, 14-small sheave, 15-signal lamp, the 16-instrument, 17-meter base, 18-source switch.
The specific embodiment
See Fig. 1, shown in 2, the calibration method of load lifting limiter of the present invention, steel rope 4 two ends are connected with reference sensor 2 respectively, reference sensor 2 is connected with support 5, steel rope 4 top-supported are on fixed pulley 10, side-compression sensor 11 more than four is clamped in respectively on the steel rope 4 of fixed pulley 10 both sides, each side-compression sensor 11 is connected with separately instrument 16 by signal wire (SW), the piston rod 6-1 of hydraulic ram 6 heads on pulley base 8 and the fixed pulley 10 and moves, stretching steel rope 4, steel rope 4 acts on tension force on each side-compression sensor 11 and the reference sensor 2, when reference sensor 2 detects steel rope 4 in zero weighing, master meter 9 shows the zero output value, imports no weighing signal respectively by hand or from each instrument 16 of trend; When reference sensor 2 detects the full weighing of steel rope 4, master meter 9 shows full weighing output valve, by importing full weighing signal more by hand or from each instrument 16 of trend, therefore can detect steel rope 4 in no weighing with completely during weighing according to reference sensor 2, import no weighing signal and full weighing signal respectively to each instrument 16, each side-compression sensor 11 and cooresponding instrument 16 are demarcated.
See shown in Fig. 1,2 that the calibration measurements device of load lifting limiter of the present invention comprises that support 5, reference sensor 2, steel rope 4, sensor clamp mechanism 12, master meter 9, guiding mechanism 7 and hydraulic ram 6.See Fig. 1, shown in 3, the two ends of steel rope 4 of the present invention are connected with reference sensor 2, this reference sensor 2 adopts pull-type sensor, this steel rope one end is connected with cover of wedge 3, cover of wedge 3 is connected with a side of reference sensor 2 by bearing pin, and the opposite side of reference sensor 2 is connected with Connection Block 1 on being fixed on support 5 by bearing pin, the other end of steel rope 4 is walked around small sheave 14 and is passed through the rope clamp captive joint, the reference sensor 2 of same this side is installed on the Connection Block 1 that is fixed on support 5 by bearing pin, two reference sensors 2 are installed on the support 5, by two reference sensors, the 2 accurate tension force of measuring on each side steel rope 4, two reference sensors 2 respectively by signal wire (SW) be installed in support 5 on separately master meter 9 be connected, measure timing signal, can provide calibration value by master meter 9 and demarcate.Steel rope 4 of the present invention is bearing on the fixed pulley 10, support 5 tops are connected with guiding mechanism 7, this guiding mechanism 7 is by top guide bar seat 7-3, lower guide rod seat 7-1 and the plural guide rod 7-2 that is connected on top guide bar seat 7-3 and the lower guide rod seat 7-1 constitute, can adopt two guide rods, or four guide rods, fixed pulley 10 is installed on the pulley base 8 by pivot pin, fixed pulley 10 can be rotated, to reduce frictional resistance, the present invention can be as shown in Figure 1, adopt two fixed pulleys 10, and pulley base 8 both sides are set on the two guide rod 7-2, pulley base 8 be installed in support 5 on the piston rod 6-1 of hydraulic ram 6 be connected, this hydraulic ram 6 can adopt manual control or electronic control, move on the advancing slip wheel seat 8 in hydraulic ram 6 top, under the effect of guiding mechanism, fixed pulley 10 steel rope 4 that can stretch reliable and stablely.See Fig. 1, shown in 2, the side-compression sensor 11 of the present invention more than four is installed in sensor respectively and clamps in the mechanism 12, each sensor clamps mechanism 12 and is connected on the steel rope 4 by sling 13, see shown in Fig. 1～4, sensor of the present invention clamps mechanism 12 and comprises bearing 12-1, frame support 12-2 and depression bar 12-3, see Fig. 3, shown in 4, this frame support has sensor slot 12-24, frame support 12-2 can adopt integral structure, or as Fig. 3, shown in 4, frame support 12-2 comprises back plate 12-21, the package assembly that pipe link 12-22 and pressing plate 12-23 constitute, back plate 12-21 is fixed on the bearing 12-1, back plate 12-21 and bearing 12-1 can adopt integral structure or welding, or connect by fastener, pressing plate 12-23 is connected with back plate 12-21 by the pipe link 12-22 of both sides, install for convenient, this pipe link 12-22 can adopt screw rod, by nut two pipe link 12-22 are installed on back plate 12-21 and the pressing plate 12-23, steel rope 4 passes sensor slot 12-24, it is last and relative with steel rope 4 that depression bar 12-3 is screwed in frame support 12-2, the end of depression bar 12-3 has pressure head 12-31, and preferably the end of depression bar 12-3 is bulb and is equipped with in the pressure head 12-31.The other end has handwheel 12-32, by handwheel 12-32 operation depression bar 12-3 steel rope 4 and side-compression sensor 11 are installed in sensor and clamp mechanism 12, with the pressure reliable action of steel rope 4 on side-compression sensor 11.
See shown in Figure 3ly, the present invention has following locations 12-12 in bearing 12-1 bottom, carry out spacing by inboard facade 12-11 of bearing 12-1 and time locations 12-12 to side-compression sensor 11.The present invention also can be connected with dihedral base 12-13 in the bottom of bearing 12-1, the sling 13 that is installed on the steel rope 4 is connected with dihedral base 12-13 by nut 6, inboard facade 12-11 that can be by bearing 12-1 and the end face of dihedral base 12-13 carry out spacing to side-compression sensor 11, convenience quick for installation.
See shown in Figure 2, meter base 17 more than four is installed on the support 5 of the present invention, respectively corresponding each sensor, meter base 17 is provided with the mounting hole that instrument is installed, be respectively equipped with the source switch 18 to each side-compression sensor 11 and instrument 16 and power supply on the support 5, this support 5 is provided with the signal lamp 15 corresponding to each side-compression sensor 11 and its instrument 16 mode of operations.
See shown in Fig. 1～4, measure timing signal, to be inserted in the sensor slot 12-24 of frame support 12-2 by side-compression sensor 11, side-compression sensor 11 is placed on the bearing 12-1, operation handwheel 12-32, the pressure head 12-31 of depression bar 12-3 end promotes steel rope 4 and embeds in the notch of side-compression sensor 11, clamping finishes, instrument 16 is installed on the meter base 17 of support 5, meter base 17 is connected by the cooresponding instrument 16 of signal wire (SW) and its, energized, operation hydraulic ram 6 make its piston rod 6-1 head on pulley base 8 and drive fixed pulley 10 risings, and steel rope 4 is applied tensile force, the tension force of steel rope 4 is converted into the pressure that side-compression sensor 11 bears, reference sensor 2 is reflected to the pulling force that bears on the master meter 9 simultaneously, when master meter 9 shows that the tension force of steel rope 4 is zero, to instrument 16 inputs and the no weighing signal of storage; The piston of hydraulic ram 6 continues rising stretching steel rope 4, when master meter 9 shows the tension force of steel rope 4 is when expiring weighing, to instrument 16 inputs and the full weighing signal of storage, to measure demarcation and finish, hydraulic ram 6 resets, operation handwheel 12-32, depression bar 12-3 unclamps steel rope 4, extracts side-compression sensor 11 out from frame support 12-2 and gets final product, and cooresponding instrument 16 is pulled down, convenient to operation, increase substantially surveying work efficient.
Claims (4)
1, a kind of calibration method of load lifting limiter, it is characterized in that: the steel rope two ends are connected with reference sensor respectively, reference sensor is installed in the support bottom, the steel rope top-supported is on fixed pulley, side-compression sensor more than four is clamped in respectively on the steel rope of fixed pulley both sides, each side-compression sensor is connected with separately display instrument by signal wire (SW), the piston rod of hydraulic ram heads on pulley base and the fixed pulley and moves, the stretching steel rope, steel rope acts on tension force on each side-compression sensor and the reference sensor, detect steel rope in zero weighing and full weighing according to reference sensor, import zero weighing signal and full weighing signal respectively to each instrument, each side-compression sensor and cooresponding instrument are demarcated.
2, the calibration method of load lifting limiter according to claim 1 is characterized in that: described side-compression sensor is installed in sensor and clamps in the mechanism.
3, a kind of caliberating device of load lifting limiter, comprise support (5), reference sensor (2), steel rope (4) is characterized in that with master meter (9): the two ends of described steel rope (4) are connected with reference sensor (2) respectively, reference sensor (2) is connected with support (5) bottom, reference sensor (2) is connected with master meter (9) on being installed in support (5) by signal wire (SW), steel rope (4) is bearing on the fixed pulley (10), support (5) top is connected with guiding mechanism (7), guiding mechanism (7) is by top guide bar seat (7-3), lower guide rod seat (7-1) and be connected top guide bar seat (7-3) and lower guide rod seat (7-1) on two constitute with top guide bar (7-2), pulley base (8) both sides that fixed pulley (10) are installed are set on two guide rods (7-2), and pulley base (8) is connected with the piston rod (6-1) that is installed in the last hydraulic ram (6) of support (5); Sensor more than four clamps mechanism (12) and is connected on the steel rope (4) by sling (13), sensor clamps mechanism (12) and comprises bearing (12-1), frame support (12-2) and depression bar (12-3), frame support (12-2) with sensor slot (12-24) is connected on the bearing (12-1), steel rope (4) passes sensor slot (12-24), and the depression bar (12-3) that has a pressure head is screwed in that frame support (12-2) is gone up and is relative with steel rope (4); Meter base (17) and source switch (18) more than four are installed on the support (5).
4, the caliberating device of load lifting limiter according to claim 1, it is characterized in that: described frame support comprises back plate (12-21), pipe link (12-22) and pressing plate (12-23), back plate (12-21) is fixed on the bearing (12-1), and pressing plate (12-23) is connected with back plate (12-21) by the pipe link (12-22) of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100303677A CN101513979B (en) | 2009-03-20 | 2009-03-20 | Calibration method of load lifting limiter and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100303677A CN101513979B (en) | 2009-03-20 | 2009-03-20 | Calibration method of load lifting limiter and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101513979A true CN101513979A (en) | 2009-08-26 |
| CN101513979B CN101513979B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100303677A Expired - Fee Related CN101513979B (en) | 2009-03-20 | 2009-03-20 | Calibration method of load lifting limiter and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639980A (en) * | 2018-06-14 | 2018-10-12 | 广东省特种设备检测研究院顺德检测院 | Derrick crane load lifting limiter detection device |
| CN110274569A (en) * | 2019-07-23 | 2019-09-24 | 南开大学 | A kind of sensor calibration system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2571707A1 (en) * | 1984-10-11 | 1986-04-18 | Brasse Charles | Device for controlling the traction exerted by pulling apparatuses: winches, capstan-winches and linear winches such as belt or roller conveyors |
| CN87210349U (en) * | 1987-07-24 | 1988-06-15 | 北京起重运输机械研究所 | Over-load limiter for lifting machine |
| CN2759982Y (en) * | 2004-11-16 | 2006-02-22 | 王镇江 | Elevating capacity limiting device |
| CN201330132Y (en) * | 2009-03-20 | 2009-10-21 | 常州市常欣电子衡器有限公司 | Demarcation device of lifting load stopper |
-
2009
- 2009-03-20 CN CN2009100303677A patent/CN101513979B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639980A (en) * | 2018-06-14 | 2018-10-12 | 广东省特种设备检测研究院顺德检测院 | Derrick crane load lifting limiter detection device |
| CN108639980B (en) * | 2018-06-14 | 2024-04-09 | 广东省特种设备检测研究院顺德检测院 | Weight limiter detection device for tower crane |
| CN110274569A (en) * | 2019-07-23 | 2019-09-24 | 南开大学 | A kind of sensor calibration system |
| CN110274569B (en) * | 2019-07-23 | 2020-11-03 | 南开大学 | Sensor calibration system |
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| CN101513979B (en) | 2010-12-29 |
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Granted publication date: 20101229 Termination date: 20140320 |