CN117163834A - Intelligent protection device of crane electronic scale - Google Patents
Intelligent protection device of crane electronic scale Download PDFInfo
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- CN117163834A CN117163834A CN202311432646.2A CN202311432646A CN117163834A CN 117163834 A CN117163834 A CN 117163834A CN 202311432646 A CN202311432646 A CN 202311432646A CN 117163834 A CN117163834 A CN 117163834A
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- electronic scale
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- frame body
- fixedly installed
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- 238000005303 weighing Methods 0.000 claims abstract description 41
- 238000004804 winding Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 56
- 239000010959 steel Substances 0.000 claims description 56
- 230000008602 contraction Effects 0.000 claims description 33
- 238000009423 ventilation Methods 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 21
- 238000000605 extraction Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses an intelligent protection device for an electronic scale of a crane, and relates to the technical field of cranes. The invention comprises a frame body and an inflatable locking part, wherein the inflatable locking part comprises a bearing structure arranged in the frame body, a driven shaft is rotatably arranged on the bearing structure, a wire rope is connected to the driven shaft through winding rollers in a winding manner, locking structures are arranged at two ends of the driven shaft, a driving motor is fixedly arranged in the frame body, a driving rotating shaft matched with a left locking structure is fixedly arranged at the driving end of the driving motor, and the centrifugal locking part comprises two mounting plates which are slidably arranged in the frame body. The advantages are that: through adopting inflation kayser, centrifugal kayser, bleed locking matched with protection method can be when wire rope fracture or heavy object drop, lock the card to wire rope and die, both can avoid the heavy object whereabouts to cause the damage, can avoid wire rope to draw back soon again and damage the electronic scale weighing plate, the protection effect is preferred.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to an intelligent protection device of an electronic scale of a crane.
Background
The crane electronic scale is usually used for weighing the heavy objects in construction sites, warehouses, ports or steelworks, but the crane electronic scale is damaged to a certain extent when the heavy objects fall sharply, and an intelligent protection device is usually adopted for protecting the crane electronic scale in order to prolong the service life of the crane electronic scale.
Through retrieval, chinese patent invention with the patent number of CN216997354U discloses a protection device of an electronic scale for a crane, which comprises the electronic scale which is vertically distributed, wherein two mounting plates are arranged on two sides of the electronic scale, a first pin shaft is arranged between the bottoms of the two mounting plates and the bottom of the electronic scale, and the first pin shaft sequentially penetrates through the mounting plates and the electronic scale;
the above device still has the following disadvantages:
1. the protection device arranged on the electronic scale for the crane has the problem that the suddenly fallen weight cannot be stopped in an emergency in the weighing process of the weight, and the crane cannot effectively lock and protect the steel wire rope when the steel wire rope is broken in the weighing process of the crane, so that the problem that the weight falls off and damages or hurts personnel exists;
2. the protection device arranged on the electronic scale for the crane has the problem that the electronic scale cannot accurately weigh the heavy objects in the weighing process, so that the electronic scale has the problem that the heavy objects shake around and cannot be uniformly stressed to weigh, the height of the heavy objects cannot be flexibly adjusted according to the volume of the heavy objects, and the weighing result is easy to have errors;
3. the crane has the problem that the electronic scale cannot be intelligently protected in the process of weighing a counterweight, if a steel wire rope breaks in the lifting process, the steel wire rope can be rapidly recovered and impacted on the weighing plate of the electronic scale, the weighing plate of the electronic scale is easily damaged, and the protection effect is poor;
therefore, there is a need to design an intelligent protection device for an electronic scale of a crane to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent protection device for an electronic scale of a crane, which solves the problems that the electronic scale cannot be intelligently protected, a rapidly fallen weight cannot be stopped in an emergency through the locking effect, and the weight cannot be accurately weighed in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: an intelligent protection device of a crane electronic scale, comprising:
a frame;
the inflatable clamping and locking part comprises a bearing structure arranged in the frame body, a driven shaft is rotatably arranged on the bearing structure, a steel wire rope is connected to the driven shaft through winding rollers in a winding manner, clamping and locking structures are arranged at two ends of the driven shaft, a driving motor is fixedly arranged in the frame body, and a driving rotating shaft matched with the left clamping and locking structure is fixedly arranged at the driving end of the driving motor;
the centrifugal locking part comprises two mounting plates which are slidably mounted in the frame body, two rotating shafts are rotatably mounted between the two mounting plates, two penetrating fixing rods are fixedly mounted between the two mounting plates, two emergency stop structures are mounted on each penetrating fixing rod, gears matched with the steel wire ropes are mounted on each rotating shaft, fixing plates are fixedly mounted on two sides of the frame body, and a triggering device is mounted between each mounting plate and the corresponding fixing plate;
the air extraction locking part comprises a plurality of connecting rods fixedly installed at the lower part of the frame body, an air storage box is fixedly installed at the lower parts of the connecting rods together, an air extraction structure for locking a steel wire rope is installed in the air storage box, and a lifting hook is fixedly installed at the lower end of the steel wire rope through a connecting disc.
Preferably, the bearing structure comprises a weight sensor, an electronic scale weighing plate and bearing frames, wherein the weight sensor is fixedly installed in the frame body, the electronic scale weighing plate matched with the weight sensor is fixedly installed below the weight sensor, two bearing frames are fixedly installed below the electronic scale weighing plate, and a driven shaft is rotatably installed between the two bearing frames.
Preferably, a plurality of radiating holes for radiating are formed in the frame body, two mounting frames are fixedly mounted on the frame body, two bearing boxes are fixedly mounted below the frame body through a plurality of fixing rods, and a control panel is fixedly mounted on the frame body.
Preferably, the locking structure comprises an air pump, a placing disc, an air blowing ring and locking components, wherein the placing disc, the air blowing ring and the locking components are arranged on the left side and the right side of the driven shaft, the placing disc is fixedly arranged on the driving rotating shaft, the placing disc is fixedly arranged on the left side bearing frame, the air pump is fixedly arranged on the placing disc, the air blowing ring is fixedly arranged in the placing disc, and a plurality of locking components are arranged between the air blowing ring and the driven shaft.
Preferably, the locking part comprises a locking disc, a reset spring, an air column, a sliding disc and a locking round rod I, wherein the locking disc is fixedly installed on the driven shaft, the locking disc is sleeved on the driven shaft, the air column is fixedly communicated with the air blowing ring, the sliding disc is slidably installed in the air column, the reset spring is fixedly connected between the sliding disc and the air blowing ring, the locking round rod I is fixedly installed at the lower end of the sliding disc, and a hole matched with the locking round rod I is formed in the locking disc.
Preferably, the scram structure includes swivel becket, swivel disc, arc, reset spring pole, piston board, kayser round bar two, fixed mounting has the swivel becket on the fixed lever that runs through, fixed mounting has a plurality of arcs in the swivel becket, fixed mounting has the swivel disc in the axis of rotation, fixed mounting has a plurality of reset spring poles on the swivel disc, two on the same horizontal line common fixed mounting has the piston board on the reset spring pole, fixed mounting has kayser round bar two on the piston board, and offered on the arc with kayser round bar two matched with card locking groove.
Preferably, the triggering device comprises a moving plate, springs and buttons, wherein the moving plate is fixedly arranged on the mounting plate, two springs are fixedly connected between the moving plate and the fixing plate, the buttons are arranged on the fixing plate, and the buttons are matched with the moving plate.
Preferably, the air extraction structure comprises an air compressor, a first contraction ring, a second contraction ring, a third contraction ring, a first ventilation pipe, a second ventilation pipe and a third ventilation pipe, wherein the first contraction ring is fixedly communicated with the first ventilation pipe in the air storage box, the second contraction ring is fixedly communicated with the second ventilation pipe in the air storage box, the third contraction ring is fixedly communicated with the third ventilation pipe in the air storage box, the steel wire rope is positioned in the first contraction ring, the second contraction ring and the third contraction ring, the air compressor is fixedly installed in the air storage box, and the air compressor is electrically connected with the button.
Preferably, the frame body is internally fixedly provided with a temperature sensor for sensing the temperature inside the frame body, the frame body is internally fixedly provided with a bellows, the bellows is internally provided with a fan blade through the rotation of a servo motor, the servo motor is matched with the temperature sensor, the bellows is fixedly provided with a plurality of heat dissipation blowpipes, and a plurality of air supplementing pipes are fixedly arranged between the bellows and the frame body.
Preferably, the lower part of the frame body is fixedly provided with a hollow cylinder, the steel wire rope is positioned in the hollow cylinder, and the hollow cylinder is internally fixedly provided with a rubber friction ring.
The invention provides an intelligent protection device for an electronic scale of a crane. The beneficial effects are as follows:
1. the intelligent protection device of the crane electronic scale has the advantage of being capable of adjusting the height of a heavy object; the first locking round rod is pushed by air flow conduction, so that the locking effect is realized, and meanwhile, when the right locking structure is locked with one side of the driving motor, the length of the steel wire rope can be controlled, so that the height of a heavy object can be conveniently adjusted;
2. the intelligent protection device of the crane electronic scale has the advantage of improving the weighing accuracy; through setting up the locking structure of left and right both sides, when left side locking structure kayses, be used for carrying out the kayser to the wire winding roller, the back is taken out when avoiding wire rope fracture and is damaged the electronic scale weighing plate, and makes driving motor not bearing when unblock with driving motor one side, avoids driving motor's damage, shifts weight to two mounts, makes the electronic scale weighing plate evenly atress weigh, and the degree of accuracy of weighing is higher;
3. the intelligent protection device of the crane electronic scale has the advantage of preventing heavy objects from falling sharply; through adopting wire rope fracture to slide down in the twinkling of an eye and drive gear high-speed pivoted mode, utilize the produced centrifugal force effect of high-speed rotation to make latch round bar two slide and realize the kayser, make the heavy object that drops sharply can emergency stop, avoid causing the damage to hoist electronic scale, realize intelligent protection, also avoid wire rope fracture to lead to the heavy object to fall the injury personnel.
4. The intelligent protection device of the crane electronic scale has the advantage of preventing the steel wire rope from falling after being broken; through the instantaneous traction force that produces when utilizing wire rope fracture gliding, can drive the movable plate and move down and touch the button to start air compressor, inhale the shrink circle, realize the instantaneous of shrink circle and tighten up, prevent wire rope's sharp whereabouts, and lock wire rope.
5. The intelligent protection device of the crane electronic scale has the advantage of intelligent protection of the electronic scale; be provided with a plurality of matched with multiple kayser modes, can carry out locking card to wire rope when wire rope fracture or heavy object drop, both can avoid the heavy object whereabouts to cause the damage, can avoid wire rope to draw back fast again and damage the electronic scale weighing plate, the protection effect preferred, the adoption has set up a plurality of kayser functions, through aerifing the kayser, centrifugal kayser and the kayser of bleeding realize that wire rope can both emergency stop when taking place the fracture in any position, fix cracked wire rope, improved the practicality and the security of hoist.
In summary, the protection mode of combining the inflation locking, the centrifugal locking and the air extraction locking is adopted, so that when the steel wire rope is broken or the heavy object falls off, the steel wire rope can be locked and blocked, the damage caused by falling of the heavy object can be avoided, the rapid back-drawing of the steel wire rope can be avoided, the electronic scale weighing plate of the crane is prevented from being damaged, the intelligent protection of the crane electronic scale is realized, and the protection effect is better.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic structural diagram of an intelligent protection device for an electronic scale of a crane according to the present invention;
FIG. 2 is a schematic view of the internal structure of the frame in FIG. 1;
FIG. 3 is a longitudinal cross-sectional view of the frame of FIG. 1;
FIG. 4 is a longitudinal cross-sectional view of the drive motor portion of FIG. 3;
FIG. 5 is a longitudinal cross-sectional view of the placement tray portion of FIG. 4;
FIG. 6 is an enlarged schematic view of the latch plate portion of FIG. 5;
FIG. 7 is a schematic longitudinal cross-sectional view of the air column portion of FIG. 6;
FIG. 8 is an enlarged schematic view of a portion of the mounting plate of FIG. 2;
FIG. 9 is a top view of the mounting plate portion of FIG. 8;
FIG. 10 is a schematic view showing an internal structure of the rotating ring in FIG. 9;
FIG. 11 is an enlarged schematic view of the arcuate plate portion of FIG. 10;
FIG. 12 is an enlarged schematic view of a portion of the mounting plate of FIG. 8;
FIG. 13 is a longitudinal cross-sectional view of a portion of the air storage cassette of FIG. 2;
FIG. 14 is a schematic view showing the internal structure of a portion of the air storage cassette of FIG. 2;
fig. 15 is an exploded view of the drive motor portion of fig. 10.
In the figure: 1 frame body, 2 control panel, 3 mounting bracket, 4 dead lever, 5 bearing box, 6 connection disc, 7 lifting hook, 8 electronic scale weighing plate, 9 weight sensor, 10 wire rope, 11 driving motor, 12 air pump, 13 placing disc, 14 driving rotating shaft, 15 driven shaft, 16 clamping disc, 17 air-blasting ring, 18 reset spring, 19 air column, 20 sliding disc, 21 clamping round bar I, 22 mounting plate, 23 rotating shaft, 24 rotating ring, 25 gear, 26 rotating disc, 27 arc plate, 28 reset spring rod, 29 piston plate, 30 clamping round bar II, 31 clamping groove, 32 moving plate, 33 spring, 34 dead plate, 35 button, 36 hollow cylinder, 37 air storage box, 38 connecting rod, 39 shrink ring I, 40 shrink ring II, 41 shrink ring III, 42 air pipe I, 43 air pipe II, 44 air pipe III, 45 bearing frame, 46 winding roller and 47 heat dissipation hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, an intelligent protection device of a crane electronic scale comprises a frame 1;
referring to fig. 2-3, the air-filled locking part realizes the locking effect on the driven shaft 15 through the expansion of the air-filled ring 17, so that the length of the steel wire rope 10 can be controlled, and the electronic scale weighing plate 8 can be prevented from being damaged by rapid back-drawing of the steel wire rope 10;
the inflatable card lock part comprises a bearing structure arranged in the frame body 1, and a driven shaft 15 is rotatably arranged on the bearing structure;
the bearing structure comprises a weight sensor 9, an electronic scale weighing plate 8 and bearing frames 45, wherein the weight sensor 9 is fixedly arranged in the frame body 1, the electronic scale weighing plate 8 matched with the weight sensor 9 is fixedly arranged below the weight sensor 9, two bearing frames 45 are fixedly arranged below the electronic scale weighing plate 8, and a driven shaft 15 is rotatably arranged between the two bearing frames 45;
the bearing structure is used for bearing the weight of a heavy object and realizing weighing of the heavy object by the weighing plate 8 of the electronic scale, the two bearing frames 45 are provided with hole bodies matched with the driven shafts 15, and the driven shafts 15 are rotatably arranged between the two bearing frames 45 through the hole bodies;
the two bearing frames 45 can bear the weight uniformly, so that the weighing plate 8 of the electronic scale is stressed uniformly, and the weighing result is more accurate;
referring to fig. 3-7, a steel wire rope 10 is wound and connected on a driven shaft 15 through a winding roller 46, a locking structure is arranged at both ends of the driven shaft 15, a driving motor 11 is fixedly arranged in a frame body 1, and a driving rotating shaft 14 matched with the left locking structure is fixedly arranged at the driving end of the driving motor 11;
the following points are notable:
1. a temperature sensor for sensing the temperature inside the frame body 1 is fixedly arranged in the frame body 1, a wind box is fixedly arranged in the frame body 1, a fan blade is rotatably arranged in the wind box through a servo motor, the servo motor is matched with the temperature sensor, a plurality of radiating blowing pipes are fixedly arranged on the wind box, and a plurality of air supplementing pipes are fixedly arranged between the wind box and the frame body 1;
2. the frame body 1 is provided with a plurality of radiating holes 47 for radiating heat, the frame body 1 is fixedly provided with two mounting frames 3, and the lower part of the frame body 1 is fixedly provided with two bearing boxes 5 through a plurality of fixing rods 4;
when the temperature sensor senses that the temperature in the frame body 1 exceeds a set value, namely the internal temperature is higher, a controller arranged in the bellows can control the servo motor to start at the moment, so that the servo motor drives the fan blade to rotate to enable the air to flow, and the air is ventilated into the frame body 1, so that heat in the frame body 1 is discharged through the heat dissipation holes 47, and the air supplementing pipe is used for supplementing air into the bellows, so that the fan blade in the bellows can generate wind power to dissipate heat;
3. the control panel 2 is fixedly arranged on the frame body 1, the control panel 2 is used for controlling the starting and stopping of the driving motor 11 and the air pump 12, meanwhile, the weighing result of the weight is displayed on the control panel 2, and the specific principle and the internal structure of the control panel 2 are the prior art and are not specifically described herein;
screw holes matched with a crane are formed in the two mounting frames 3, the mounting frames 3 are arranged on the crane in a threaded manner, so that the device is arranged on the crane, and the two bearing boxes 5 are used for hanging the original cross beams used for weighing on the crane, so that the weight of a heavy object is transferred to the bearing boxes 5 from the crane, and the heavy object is conveniently hung and weighed;
4. the locking structure comprises an air pump 12, a placing disc 13, an air blowing ring 17 and locking components which are positioned at the left side and the right side of a driven shaft 15, wherein the placing disc 13 at the right side is fixedly arranged on a driving rotating shaft 14, the placing disc 13 at the left side is fixedly arranged on a left side bearing frame 45, the air pump 12 is fixedly arranged on the placing disc 13, the air blowing ring 17 is fixedly arranged in the placing disc 13, and a plurality of locking components are arranged between the air blowing ring 17 and the driven shaft 15;
the locking structure performs air blowing on the air blowing ring 17 through the operation of the air pump 12, and air in the air blowing ring 17 pushes the sliding disc 20 to drive the first locking round rod 21 to move downwards into the hole of the locking disc 16 together, so that locking is completed, and the placing disc 13 and the driven shaft 15 can be fixed;
5. the locking component comprises a locking disc 16, a return spring 18, an air column 19, a sliding disc 20 and a locking round rod I21, wherein the locking disc 16 is fixedly arranged on the driven shaft 15, the locking disc 16 is sleeved on the driven shaft 15, the air column 19 is fixedly communicated with the air blowing ring 17, the sliding disc 20 is slidably arranged in the air column 19, the return spring 18 is fixedly connected between the sliding disc 20 and the air blowing ring 17, the locking round rod I21 is fixedly arranged at the lower end of the sliding disc 20, and a hole matched with the locking round rod I21 is formed in the locking disc 16;
the air in the air-blowing ring 17 is introduced into the air column 19 to push the sliding disk 20 to move, so that the first locking round rod 21 is driven to move, the first locking round rod 21 is clamped into a hole on the locking disk 16 to realize locking, and the locking can be released when the air pump 12 sucks air due to the elastic deformation characteristic of the return spring 18;
when the right side locking structure is locked with one side of the driving motor 11, the driving motor 11 is started, and the driving rotating shaft 14 drives the winding roller 46 to rotate so as to control the length of the steel wire rope 10, thereby being convenient for adjusting the height of the heavy object;
when the left locking structure is locked, the left locking structure is used for locking the winding roller 46, so that the electronic scale weighing plate 8 is prevented from being damaged by back suction when the steel wire rope 10 is broken, the driving motor 11 is prevented from bearing when the left locking structure is unlocked from one side of the driving motor 11, the damage of the driving motor 11 is avoided, the left locking structure is used for transferring the weight of a heavy object to the two bearing frames 45, the electronic scale weighing plate 8 is uniformly stressed and weighed, and the weighing accuracy is higher;
referring to fig. 8 to 12, a centrifugal latch portion for fixing the broken wire rope 10 to prevent the broken wire rope from falling down the weight;
the centrifugal lock comprises two mounting plates 22 which are slidably arranged in a frame body 1, two rotating shafts 23 are rotatably arranged between the two mounting plates 22, two penetrating fixing rods are fixedly arranged between the two mounting plates 22, two emergency stop structures are arranged on each penetrating fixing rod, gears 25 matched with the steel wire ropes 10 are arranged on each rotating shaft 23, fixing plates 34 are fixedly arranged on two sides of the frame body 1, and a triggering device is arranged between each mounting plate 22 and the corresponding fixing plate 34;
the following points are notable:
1. the wire rope 10 is a rope formed by twisting multiple layers of wires into strands, and then taking a rope core as the center, and twisting a certain number of strands into a spiral shape, wherein the surface of the spiral shape is a spiral shape which is matched with a rack of the gear 25;
2. the emergency stop structure comprises a rotating ring 24, a rotating disc 26, arc plates 27, reset spring rods 28, piston plates 29 and second locking round rods 30, wherein the rotating ring 24 is fixedly installed on a penetrating fixed rod, a plurality of arc plates 27 are fixedly installed in the rotating ring 24, the rotating disc 26 is fixedly installed on the rotating shaft 23, the reset spring rods 28 are fixedly installed on the rotating disc 26, the piston plates 29 are fixedly installed on the two reset spring rods 28 which are positioned on the same horizontal line together, the second locking round rods 30 are fixedly installed on the piston plates 29, and locking grooves 31 matched with the second locking round rods 30 are formed in the arc plates 27;
when the wire rope 10 is slowly stretched, the two gears 25 are driven to slowly rotate, the centrifugal force is insufficient to stretch the reset spring rod 28, and the rotating disc 26 normally rotates and is not in a locking state;
the emergency stop structure is used for fixing the suddenly-falling steel wire rope 10, when the steel wire rope 10 suddenly breaks, the steel wire rope instantaneously slides down and drives the two gears 25 to instantaneously rotate at high speed and simultaneously drives the two rotating shafts 23 to rotate, so that the rotating disc 26 is driven to instantaneously rotate at high speed, a large enough centrifugal force is generated during instantaneous rotation, the piston plate 29 is pushed by the stretching of the reset spring rod 28, and the second locking round rod 30 is pushed to enter the locking groove 31 on the arc plate 27, so that the locking effect is realized;
when the weight suddenly drops off, the steel wire rope 10 moves upwards instantaneously, and the locking effect is realized in the same way;
the locking effect is that the rotating disc 26 cannot rotate due to the fact that the rotating ring 24 is fixed on the penetrating fixed rod, the arc-shaped plate 27 is fixed in the rotating ring 24, and the second locking round rod 30 is locked with the locking groove 31 on the arc-shaped plate 27, so that the gear 25 and the rotating shaft 23 cannot rotate, namely locking is realized by locking the gear teeth on the gear 25 and the steel wire rope 10;
3. the triggering device comprises a moving plate 32, springs 33 and buttons 35, wherein the moving plate 32 is fixedly arranged on the mounting plate 22, two springs 33 are fixedly connected between the moving plate 32 and a fixed plate 34, the buttons 35 are arranged on the fixed plate 34, and the buttons 35 are matched with the moving plate 32;
due to the instant gravity generated when the weight falls, the broken steel wire rope 10 is driven to move down instantly, so that the mounting plate 22 on the rotating shaft 23 is driven to move down instantly through the two gears 25, the moving plate 32 on the mounting plate 22 moves down synchronously at the moment, and the button 35 on the fixed plate 34 is pressed;
13-15, the air extraction locking part is used for stopping falling heavy objects suddenly and preventing the falling heavy objects from damaging the weighing plate 8 of the electronic scale;
the air extraction locking part comprises a plurality of connecting rods 38 fixedly arranged at the lower part of the frame body 1, the lower parts of the connecting rods 38 are fixedly provided with an air storage box 37 together, an air extraction structure for locking the steel wire rope 10 is arranged in the air storage box 37, and the lower end of the steel wire rope 10 is fixedly provided with a lifting hook 7 through a connecting disc 6;
the above noted two points are:
1. the air extraction structure comprises an air compressor, a first contraction ring 39, a second contraction ring 40, a third contraction ring 41, a first ventilation pipe 42, a second ventilation pipe 43 and a third ventilation pipe 44, wherein the first contraction ring 39 is fixedly communicated with the air storage box 37 through the first ventilation pipe 42, the second contraction ring 40 is fixedly communicated with the air storage box 37 through the second ventilation pipe 43, the third contraction ring 41 is fixedly communicated with the air storage box 37 through the third ventilation pipe 44, the steel wire rope 10 is positioned in the first contraction ring 39, the second contraction ring 40 and the third contraction ring 41, the air compressor is fixedly installed in the air storage box 37, and the air compressor is electrically connected with the button 35;
the initial states of the first contraction ring 39, the second contraction ring 40 and the third contraction ring 41 are air inflation expansion, and the diameter of the inner ring corresponds to that of the steel wire rope 10, so that the steel wire rope 10 can be stretched and moved smoothly;
the air extraction structure is used for enabling the first shrinkage ring 39, the second shrinkage ring 40 and the third shrinkage ring 41 to shrink so as to fix the steel wire rope 10, the moving plate 32 presses the button 35 so as to start the air compressor for air suction, and the first shrinkage ring 39, the second shrinkage ring 40 and the third shrinkage ring 41 are respectively and instantaneously shrunk through the first ventilation pipe 42, the second ventilation pipe 43 and the third ventilation pipe 44 so as to fix the broken steel wire rope 10;
2. the lower part of the frame body 1 is fixedly provided with a hollow cylinder 36, and the steel wire rope 10 is positioned in the hollow cylinder 36; the hollow cylinder 36 is used for limiting the steel wire rope 10, so that the stability of the steel wire rope 10 is improved, and the steel wire rope 10 is prevented from shaking during weighing;
a rubber friction ring is fixedly arranged in the hollow cylinder 36; the rubber friction ring avoids the abrasion of the hollow cylinder 36 in the lifting process of the counterweight by the steel wire rope 10, and prolongs the service life of the device.
In the invention, the initial state is: the locking structure positioned on the right side of the driven shaft 15 is in an unlocking state, the locking structure positioned on the left side of the driven shaft 15 is in a locking state, and weights are hung on the original two cross beams of the crane;
hanging the weight:
firstly, the original two cross beams on a crane are clamped and placed in two bearing boxes 5, so that the weight of a heavy object is transferred to the bearing boxes 5 from the crane, and then the heavy object is hung on a lifting hook 7;
and (3) adjusting the height of the weight:
when the volume of the heavy object is too large and the heavy object cannot be weighed, the height of the heavy object is required to be adjusted, at the moment, the air pump 12 on the right side is started to perform air blowing, the locking structure on the right side of the driven shaft 15 is locked, the air pump 12 on the left side is started to perform air suction, the locking structure on the left side is unlocked, the driving motor 11 is started again, the driving rotating shaft 14 can drive the locking structure on the right side to synchronously rotate through the placing disc 13, so that the driven shaft 15 is driven to rotate, and at the moment, the winding roller 46 rotates to tighten the steel wire rope 10, so that the height of the heavy object is adjusted;
weighing the heavy objects:
after the weight of the heavy object is transferred to the lifting hook 7, when the locking structure on the right side is unlocked, the driving motor 11 is not loaded, so that the damage of the driving motor 11 due to the loading is avoided, the locking structure on the left side is used for transferring the weight of the heavy object to the two bearing frames 45 through the steel wire rope 10 and the winding roller 46, so that the two bearing frames 45 are uniformly loaded, and the electronic scale weighing plate 8 is uniformly stressed to be weighed;
and (3) protecting an electronic scale:
when the steel wire rope 10 is suddenly broken (or the heavy object suddenly drops), the steel wire rope 10 instantaneously slides down (or moves upwards), and drives the two gears 25 to instantaneously rotate at high speed and simultaneously drives the two rotating shafts 23 to rotate, so that the rotating disc 26 is driven to instantaneously rotate at high speed, a large enough centrifugal force is generated during instantaneous rotation, the piston plate 29 is pushed by the stretching of the reset spring rod 28, and the second locking round rod 30 is pushed to enter the 31 locking groove on the arc plate 27;
because the rotating ring 24 is fixed on the penetrating fixed rod, the arc-shaped plate 27 is fixed in the rotating ring 24, the rotating disc 26 cannot rotate through the clamping of the second clamping round rod 30 and the clamping groove 31 on the arc-shaped plate 27, so that the gear 25 and the rotating shaft 23 cannot rotate, namely, the clamping is realized by utilizing the clamping and locking of the gear teeth on the gear 25 and the steel wire rope 10, the clamping effect is realized, and the broken steel wire rope 10 is primarily fixed;
due to the fact that the steel wire rope 10 is broken, the instant gravity generated when the heavy object falls can drive the broken steel wire rope 10 to move downwards instantly, so that the mounting plate 22 on the rotating shaft 23 is driven to move downwards instantly through the two gears 25, at the moment, the moving plate 32 on the mounting plate 22 moves downwards synchronously, and the button 35 on the fixing plate 34 is pressed;
pressing the button 35 by the moving plate 32 starts the air compressor to inhale, and instantly contracts the first contraction ring 39, the second contraction ring 40 and the third contraction ring 41 through the first ventilation pipe 42, the second ventilation pipe 43 and the third ventilation pipe 44 respectively to fix the broken steel wire rope 10 again;
meanwhile, when the steel wire rope 10 breaks (or the heavy object falls off), the wire winding roller 46 is positioned and locked due to the locking effect of the locking structure at the left side of the driven shaft 15, so that the steel wire rope 10 is prevented from rapidly rotating on the wire winding roller 46, recovering and impacting the electronic scale weighing plate 8, and the electronic scale weighing plate 8 is prevented from being damaged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. An intelligent protection device of a crane electronic scale, comprising:
a frame (1);
the inflatable clamping and locking part comprises a bearing structure arranged in the frame body (1), a driven shaft (15) is rotatably arranged on the bearing structure, a steel wire rope (10) is wound and connected on the driven shaft (15) through a winding roller (46), clamping and locking structures are arranged at two ends of the driven shaft (15), a driving motor (11) is fixedly arranged in the frame body (1), and a driving rotating shaft (14) matched with the left clamping and locking structure is fixedly arranged at the driving end of the driving motor (11);
the centrifugal locking part comprises two mounting plates (22) which are slidably mounted in a frame body (1), two rotating shafts (23) are rotatably mounted between the two mounting plates (22), two penetrating fixing rods are fixedly mounted between the two mounting plates (22), two emergency stop structures are mounted on each penetrating fixing rod, gears (25) matched with the steel wire ropes (10) are mounted on each rotating shaft (23), fixing plates (34) are fixedly mounted on two sides of the frame body (1), and a triggering device is mounted between each mounting plate (22) and each corresponding fixing plate (34);
the air extraction locking part comprises a plurality of connecting rods (38) fixedly installed at the lower part of the frame body (1), air storage boxes (37) are fixedly installed at the lower parts of the connecting rods (38) together, an air extraction structure for locking the steel wire rope (10) is installed in each air storage box (37), and lifting hooks (7) are fixedly installed at the lower ends of the steel wire ropes (10) through connecting discs (6).
2. The intelligent protection device of the crane electronic scale according to claim 1, wherein the bearing structure comprises a weight sensor (9), an electronic scale weighing plate (8) and bearing frames (45), the weight sensor (9) is fixedly installed in the frame body (1), the electronic scale weighing plate (8) matched with the weight sensor (9) is fixedly installed below the weight sensor (9), two bearing frames (45) are fixedly installed below the electronic scale weighing plate (8), and a driven shaft (15) is rotatably installed between the two bearing frames (45).
3. The intelligent protection device of the crane electronic scale according to claim 1, wherein a plurality of radiating holes (47) for radiating heat are formed in the frame body (1), two mounting frames (3) are fixedly mounted on the frame body (1), two bearing boxes (5) are fixedly mounted below the frame body (1) through a plurality of fixing rods (4), and a control panel (2) is fixedly mounted on the frame body (1).
4. The intelligent protection device of the crane electronic scale according to claim 2, wherein the locking structure comprises an air pump (12), a placing disc (13) positioned at the left side and the right side of a driven shaft (15), an air blowing ring (17) and locking components, the placing disc (13) at the right side is fixedly arranged on a driving rotating shaft (14), the placing disc (13) at the left side is fixedly arranged on a left side bearing frame (45), the air pump (12) is fixedly arranged on the placing disc (13), the air blowing ring (17) is fixedly arranged in the placing disc (13), and a plurality of locking components are arranged between the air blowing ring (17) and the driven shaft (15).
5. The intelligent protection device of the crane electronic scale according to claim 4, wherein the locking component comprises a locking disc (16), a reset spring (18), an air column (19), a sliding disc (20) and a locking round rod I (21), the locking disc (16) is fixedly installed on the driven shaft (15), the locking disc (16) is sleeved on the driven shaft (15), the air column (19) is fixedly communicated on the air blowing ring (17), the sliding disc (20) is slidably installed on the air column (19), the reset spring (18) is fixedly connected between the sliding disc (20) and the air blowing ring (17), the locking round rod I (21) is fixedly installed at the lower end of the sliding disc (20), and a hole matched with the locking round rod I (21) is formed in the locking disc (16).
6. The intelligent protection device of a crane electronic scale according to claim 1, wherein the emergency stop structure comprises a rotating ring (24), a rotating disc (26), arc plates (27), reset spring rods (28), piston plates (29) and second locking round rods (30), the rotating ring (24) is fixedly installed on the penetrating fixing rod, a plurality of arc plates (27) are fixedly installed in the rotating ring (24), the rotating disc (26) is fixedly installed on the rotating shaft (23), a plurality of reset spring rods (28) are fixedly installed on the rotating disc (26), the piston plates (29) are fixedly installed on the two reset spring rods (28) on the same horizontal line, the second locking round rods (30) are fixedly installed on the piston plates (29), and locking grooves (31) matched with the second locking round rods (30) are formed in the arc plates (27).
7. The intelligent protection device of the crane electronic scale according to claim 1, wherein the triggering device comprises a moving plate (32), springs (33) and buttons (35), the moving plate (32) is fixedly installed on the mounting plate (22), two springs (33) are fixedly connected between the moving plate (32) and a fixed plate (34), the buttons (35) are installed on the fixed plate (34), and the buttons (35) are matched with the moving plate (32).
8. The intelligent protection device of a crane electronic scale according to claim 1, wherein the air extraction structure comprises an air compressor, a first contraction ring (39), a second contraction ring (40), a third contraction ring (41), a first ventilation pipe (42), a second ventilation pipe (43) and a third ventilation pipe (44), the first contraction ring (39) is fixedly communicated with the air storage box (37) through the first ventilation pipe (42), the second contraction ring (40) is fixedly communicated with the air storage box (37) through the second ventilation pipe (43), the third contraction ring (41) is fixedly communicated with the air storage box (37) through the third ventilation pipe (44), the steel wire rope (10) is positioned in the first contraction ring (39), the second contraction ring (40) and the third contraction ring (41), the air compressor is fixedly installed in the air storage box (37), and the air compressor is electrically connected with the button (35).
9. The intelligent protection device of the crane electronic scale according to claim 1, wherein a temperature sensor for sensing the internal temperature of the frame (1) is fixedly installed in the frame (1), a wind box is fixedly installed in the frame (1), a wind blade is rotatably installed in the wind box through a servo motor, the servo motor is matched with the temperature sensor, a plurality of heat dissipation blowing pipes are fixedly installed on the wind box, and a plurality of air supplementing pipes are fixedly installed between the wind box and the frame (1).
10. The intelligent protection device of the crane electronic scale according to claim 1, wherein a hollow cylinder (36) is fixedly arranged at the lower part of the frame body (1), the steel wire rope (10) is positioned in the hollow cylinder (36), and a rubber friction ring is fixedly arranged in the hollow cylinder (36).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311432646.2A CN117163834B (en) | 2023-11-01 | 2023-11-01 | Intelligent protection device of crane electronic scale |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311432646.2A CN117163834B (en) | 2023-11-01 | 2023-11-01 | Intelligent protection device of crane electronic scale |
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| CN117163834B CN117163834B (en) | 2024-01-26 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117163834B (en) | 2024-01-26 |
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