A safety detection device for port lifting equipment

Abstract

The present invention discloses a safety detection device for port lifting equipment, which relates to the technical field of lifting equipment detection; it includes a hoisting connection part, on which two clamping connection parts are installed, and the two clamping connection parts are used for clamping steel coils; support point testing parts are respectively installed on the two clamping connection parts; the two support point testing parts are respectively used for supporting the steel coils; the hoisting connection part is used to prevent the steel coil from exploding; it can be used to detect the explosion of the steel coil, which can avoid the injury of staff after the steel coil explodes. At the same time, this structure can avoid the situation that the explosion of the steel coil is not detected during the unloading of the steel coil. After directly unloading the steel coil and losing the clamping and limiting of the clamping connection part, the steel coil bounces directly, causing economic losses and personal injuries; to solve the problems that the current port lifting equipment is not convenient for explosion-proof coil detection and protection, and not convenient for hoisting protection of the strap position detection.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment detection, and specifically relates to a safety detection device for port hoisting equipment. Background Technique

[0002] In port hoisting equipment, the hoisting spreader is an important instrument for loading goods and an important guarantee for the safety of goods hoisting. For example, in the hoisting work of steel coils, the steel coils are usually bound by hoop bands and transported in a coiled form. Once the hoop bands of the steel coils break and cause the coils to explode, it is easy to injure the staff and cause major safety accidents. The steel coils are usually hoisted by passing a U-shaped hanger through the steel coils. Currently, port hoisting equipment is not convenient for safety detection, and manual observation is mostly used. The explosion of steel coils is likely to cause accidents, and it is not convenient for anti-explosion coil detection and protection. At the same time, when hoisting steel coils, the spreader is mostly directly inserted into the middle of the steel coils. If the hoop band of the steel coil is at the top, the stress point of the spreader directly focuses on the hoop band, and the huge pressure is likely to cause the hoop band to break, resulting in safety accidents. It is not convenient for hoop band position detection and lifting protection. At the same time, it is not convenient for steel coil deviation testing. When the steel coil is hoisted and unloaded, when the steel coil rolls and displaces due to terrain influence, it is easy to cause injury to the staff, and it is not convenient for reverse traction protection. The hoisting safety of steel coils is not good.

[0003] Therefore, we propose a safety detection device for port hoisting equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a safety detection device for port hoisting equipment to solve the problems that the current port hoisting equipment is not convenient for anti-explosion coil detection and protection and not convenient for hoop band position detection and lifting protection mentioned in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A safety detection device for port hoisting equipment, including a hoisting connection part, two clamping connection parts are installed on the hoisting connection part, and the two clamping connection parts are used for clamping steel coils; two support point testing parts are respectively installed on the two clamping connection parts; the two support point testing parts are respectively used for supporting the steel coils; the hoisting connection part is used for anti-explosion coil; two disengagement control parts are installed on the hoisting connection part; a hanging connection part is installed on the hoisting connection part; the two disengagement control parts are used for inserting and positioning the hanging connection part; two tilting testing parts are respectively installed on both sides of the two support point testing parts; the four tilting testing parts are respectively used for detecting the side shift of the steel coil; two limit dropping parts are installed on the hoisting connection part; the two limit dropping parts are respectively used for preventing the steel coil from rolling; the hoisting connection part includes: a hoisting main arm, an explosion coil elastic sheet and a power connection block, an explosion coil elastic sheet is fixedly installed at the bottom of the hoisting main arm; the explosion coil elastic sheet is an elastic conductive steel sheet; a power connection block is fixedly installed at the bottom of the hoisting main arm; the end of the explosion coil elastic sheet is aligned with the power connection block.

[0006] Preferably, the hoisting connection part further includes: an alarm lamp, a telescopic boom, a guiding chute, a hydraulic cylinder, and an external electromagnet. The alarm lamp is fixedly installed at the top of the hoisting main boom; telescopic booms are respectively slidably inserted on both sides of the hoisting main boom, and the telescopic booms are L-shaped structures; guiding chutes are respectively formed on the two telescopic booms; hydraulic cylinders are respectively fixedly installed on the two telescopic booms, and the output shafts of the two hydraulic cylinders are respectively fixedly installed inside the hoisting main boom; two external electromagnets are fixedly installed at the bottom of the hoisting main boom, and the two external electromagnets are respectively used for magnetically attracting steel coils.

[0007] Preferably, the clamping connection part includes: a sliding displacement block, inclined bars, a connecting tension spring, and a clamping plate. The sliding displacement block is slidably installed on the telescopic boom; two inclined bars are obliquely installed on the sliding displacement block; the two inclined bars are respectively slidably installed in the guiding chutes on the same side; the guiding chutes are used for guiding the inclined bars to displace inwards; the connecting tension spring is fixedly installed at the top of the sliding displacement block, and the end of the connecting tension spring is connected to the inner side of the telescopic boom; the clamping plate is fixedly installed on the side of the sliding displacement block, and the clamping plate is used for clamping and fitting the two ends of the steel coil.

[0008] Preferably, the support point testing part includes: a clamping test block, an internal electromagnet, a convex pad, a hoop belt detection block, and a hoop belt switch. The clamping test block is fixedly installed in the middle of the clamping plate; convex pads are respectively fixedly installed on both sides of the top of the clamping test block; the two convex pads are used for supporting the steel coil; the hoop belt detection block is slidably inserted on the clamping test block, and the hoop belt detection block is located between the two convex pads; the hoop belt detection block protrudes from the clamping test block; the hoop belt switch is fixedly installed at the bottom of the hoop belt detection block, and the end of the hoop belt switch is attached to the clamping test block; the internal electromagnet is embedded at the top of the clamping test block; the explosion-proof coil shrapnel, the power connection block, the internal electromagnet, and the external electromagnet are connected in series to a power source.

[0009] Preferably, the support point testing part further includes: a hoop belt spring. The hoop belt spring is fixedly installed on the clamping test block, and the end of the hoop belt spring is connected to the bottom of the hoop belt detection block; the hoop belt spring is located outside the hoop belt switch.

[0010] Preferably, the detachment control part includes: a detachment electromagnet, a positioning pin, and a positioning tension spring. The detachment electromagnet is fixedly installed on the hoisting main boom through a bracket; the positioning pin is slidably installed on the hoisting main boom; the positioning pin passes through the side wall of the hoisting main boom; the detachment electromagnet is used for magnetically attracting the positioning pin; the positioning tension spring is sleeved on the positioning pin; the end of the positioning tension spring is connected to the positioning pin, and the other end of the positioning tension spring is connected to the side of the hoisting main boom; the detachment electromagnet is electrically connected to the hoop belt switch, and a switch is connected between the hoop belt switches.

[0011] Preferably, the hanging connecting piece includes a rotating shaft, a hanging shaft, and a lifting hydraulic cylinder. The rotating shaft is rotatably installed on the main lifting arm; the hanging shaft is slidably sleeved on the rotating shaft; a hanging ring is provided at the top of the hanging shaft; a lifting hydraulic cylinder is fixedly sleeved at the bottom of the hanging shaft, and the output shaft of the lifting hydraulic cylinder is fixedly installed inside the rotating shaft; a circular groove is provided on the rotating shaft; a positioning pin is slidably inserted into the circular groove on the rotating shaft.

[0012] Preferably, the roll-over test piece includes an inclined extrusion plate, a roll-over extrusion switch, and an extrusion spring. The inclined extrusion plate is slidably installed on the side of the clamping test block; the roll-over extrusion switch is fixedly installed at the bottom of the inclined extrusion plate; the roll-over extrusion switch is electrically connected to the lifting hydraulic cylinder and the alarm lamp; the extrusion spring is fixedly installed at the bottom of the inclined extrusion plate, and the extrusion spring is located outside the roll-over extrusion switch; the end of the extrusion spring is connected to the inside of the clamping test block.

[0013] Preferably, the limiting placement piece includes limiting arms, insertion shafts, and sleepers. There are two limiting arms, and the two limiting arms are respectively rotatably installed on the two clamping plates; insertion shafts are respectively fixedly installed on the sides of the two limiting arms; sleepers are inserted on the two insertion shafts, and the sleepers are triangular structures; there are gaps between the two ends of the sleepers and the two limiting arms.

[0014] Preferably, the limiting placement piece further includes electromagnets. The two clamping plates are respectively fixedly installed with electromagnets, and the electromagnets magnetically attract the limiting arms; the two electromagnets are electrically connected to the roll-over extrusion switch.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The present invention adopts a lifting connection part, which can be used to detect the explosion of steel coils, can avoid harming workers after the steel coils explode, and at the same time, this structure can avoid the situation that the explosion of the steel coils is not detected during unloading. After directly unloading the steel coils and losing the clamping and limiting of the clamping connecting piece, the steel coils will directly bounce open, causing economic losses and personal injuries. This structure has direct detection, can automatically perform magnetic positioning, can simultaneously position the outer end and the inner end of the steel coil, and is convenient for workers to re-strengthen the hoop belt.

[0017] The support point test unit can be used to detect the accuracy of the steel coil lifting position, which can improve the safety of steel coil lifting and prevent the main force point on the top of the clamping test block from being squeezed on the steel coil hoist when the steel coil is lifted. Once the initial position of the steel coil hoist is directly above, the steel coil hoist will be directly squeezed when the clamping test block is lifted. The force on the steel coil hoist is too concentrated. At this time, the steel coil hoist located directly above is easily squeezed and broken. After the fastening effect of the steel coil is reduced, it is easy to directly cause safety hazards such as explosion of the coil. The use of hanging connectors in conjunction with the disengagement control parts can automatically break the shaft when the steel coil hoist is inaccurately lifted. The control of the support point test unit can further avoid the problem of staff still violating regulations even when they know that the steel coil hoist is squeezed by concentrated stress.

[0018] The use of limit release parts can cooperate with the roll test parts to monitor the lowering status of the steel coil in real time. When the steel coil rolls, the release sleepers are automatically controlled to perform limiting work. At the same time, the lifting hydraulic cylinder can be used to directly lift the steel coil to avoid excessive displacement of the steel coil and play a role in resetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a safety detection device for port lifting equipment of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation position of the support point test part of the present invention;

[0021] Figure 3 This is a schematic diagram of the bottom structure of a safety detection device for port lifting equipment of the present invention;

[0022] Figure 4 It is a cross-sectional view of the lifting connection structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the bottom structure of the lifting connection part of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the clamping connector of the present invention;

[0025] Figure 7 It is a cross-sectional view of the roll test piece structure of the present invention;

[0026] Figure 8 For the present invention Figure 2 A magnified view of the structure of the middle E region;

[0027] Figure 9 This is a cross-sectional view of the structure of the release control member of the present invention;

[0028] Figure 10 This is a schematic diagram of the position of the positioning pin of the present invention;

[0029] Figure 11 This is a schematic diagram of the limit delivery component structure of the present invention.

[0030] In the figure: 1. Lifting connection part; 101. Lifting main arm; 1011. Explosion roll shrapnel; 1012. Power connection block; 102. Alarm lamp; 103. Telescopic sub-arm; 1031. Guide chute; 104. Hydraulic cylinder; 105. Outer electromagnet; 2. Clamping connection part; 201. Sliding displacement block; 2011. Inclined strip; 2012. Connecting tension spring; 202. Clamping plate; 3. Support point testing part; 301. Clamping test block; 3011. Inner electromagnet; 302. Raised pad; 303. Hoop belt detection block; 304. Hoop belt switch; 305. Hoop belt spring; 4. Release control part; 401. Release electromagnet; 402. Positioning pin; 403. Positioning tension spring; 5. Hanging connection part; 501. Rotating shaft; 502. Hanging shaft; 503. Lifting hydraulic cylinder; 6. Roll angle testing part; 601. Tilt extrusion plate; 602. Roll angle extrusion switch; 603. Extrusion spring; 7. Limit delivery part; 701. Limit arm; 7011. Insertion shaft; 702. Sleeper; 703. Electromagnet. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1: Please refer to Figures 1 to 11 as shown:

[0033] The present invention provides a technical solution: a safety detection device for port lifting equipment, including a hoisting connection part 1, on which two clamping connection parts 2 are installed. The two clamping connection parts 2 are used for clamping steel coils; two support point testing parts 3 are respectively installed on the two clamping connection parts 2; the two support point testing parts 3 are respectively used for supporting the steel coils; the hoisting connection part 1 is used for preventing the steel coil from exploding; two disengagement control parts 4 are installed on the hoisting connection part 1; a hanging connection part 5 is installed on the hoisting connection part 1; the two disengagement control parts 4 are used for inserting and positioning the hanging connection part 5; two tilting testing parts 6 are respectively installed on both sides of the two support point testing parts 3; the four tilting testing parts 6 are respectively used for detecting the side shift of the steel coil; two limit dropping parts 7 are installed on the hoisting connection part 1; the two limit dropping parts 7 are respectively used for preventing the steel coil from rolling; the hoisting connection part 1 includes: a hoisting main arm 101, an explosion-proof coil spring piece 1011 and a power connection block 1012. The explosion-proof coil spring piece 1011 is fixedly installed at the bottom of the hoisting main arm 101; the explosion-proof coil spring piece 1011 is an elastic conductive steel sheet; the power connection block 1012 is fixedly installed at the bottom of the hoisting main arm 101; the end of the explosion-proof coil spring piece 1011 is aligned with the power connection block 1012.

[0034] Among them, the hoisting connection part 1 further includes: an alarm lamp 102, a telescopic boom 103, a guiding chute 1031, a hydraulic cylinder 104, and an external electromagnet 105. The alarm lamp 102 is fixedly installed at the top of the hoisting main boom 101; the telescopic booms 103 are respectively slidably inserted on both sides of the hoisting main boom 101, and the telescopic boom 103 is of an L-shaped structure; guiding chutes 1031 are respectively formed on the two telescopic booms 103; hydraulic cylinders 104 are respectively fixedly installed on the two telescopic booms 103, and the output shafts of the two hydraulic cylinders 104 are respectively fixedly installed on the inner side of the hoisting main boom 101; two external electromagnets 105 are fixedly installed at the bottom of the hoisting main boom 101, and the two external electromagnets 105 are respectively used for magnetically attracting the steel coils; the clamping connection part 2 includes: a sliding displacement block 201, an inclined strip 2011, a connecting tension spring 2012, and a clamping plate 202. The sliding displacement block 201 is slidably installed on the telescopic boom 103; two inclined strips 2011 are obliquely installed on the sliding displacement block 201; the two inclined strips 2011 are respectively slidably installed in the guiding chutes 1031 on the same side; the guiding chute 1031 is used for guiding the inclined strip 2011 to move inwards; the connecting tension spring 2012 is fixedly installed at the top of the sliding displacement block 201, and the end of the connecting tension spring 2012 is connected to the inner side of the telescopic boom 103; the clamping plate 202 is fixedly installed on the side of the sliding displacement block 201, and the clamping plate 202 is used for clamping and fitting the two ends of the steel coil; the hoisting connection part 1 can be used to detect the explosion of the steel coil, which can avoid the injury of the staff after the explosion of the steel coil. At the same time, this structure can avoid the situation that the explosion of the steel coil is not detected during the unloading of the steel coil. After directly unloading the steel coil and losing the clamping and limiting of the clamping connection part 2, the steel coil will bounce directly, causing economic losses and personal injuries. This structure has direct detection, can automatically perform magnetic attraction positioning, can simultaneously position the outer end and the inner end of the steel coil, and is convenient for the staff to re-strengthen the hoop belt. The clamping connection part 2 can be used to improve the stability of the steel coil during actual hoisting, and at the same time play a role in clamping and aligning the two ends of the steel coil, preventing one end of the steel coil from protruding, affecting the subsequent placement of the steel coil and causing the hoop belt to break due to extrusion. Control the two hydraulic cylinders 104 to drive the two telescopic booms 103 to move inwards. At this time, the clamping plates 202 on the telescopic booms 103 clamp and fit the two ends of the steel coil. At this time, the lugs on the hanging shaft 502 can be docked with the hook of the crane. As the crane hoists the hoisting main boom 101, under the action of the weight of the steel coil, the steel coil will pull down the clamping test block 301, driving the sliding displacement block 201 to generate a downward force. At this time, in cooperation with the movement of the inclined strip 2011 in the guiding chute 1031, under the oblique guidance of the guiding chute 1031, the clamping plate 202 will generate downward and inward pressures to squeeze and clamp the end of the steel coil for correcting the two ends of the steel coil. When the steel coil explodes, the steel coil expands rapidly at this time, and the steel coil will lean against and squeeze the explosion-proof coil spring piece 1011 to fit the power connection block 1012. At this time, the external electromagnet 105 can be energized to magnetically attract the outer side of the steel coil, and the inner electromagnet 3011 will be energized to magnetically attract the inner side of the steel strip, realizing the magnetic attraction positioning of the two ends of the steel coil.

[0035] Among them, the support point testing part 3 includes: a clamping test block 301, an inner electromagnet 3011, a convex pad 302, a hoop belt detection block 303 and a hoop belt switch 304. The clamping test block 301 is fixedly installed in the middle of the clamping plate 202; on both sides of the top of the clamping test block 301, convex pads 302 are fixedly installed respectively; the two convex pads 302 are used to support the steel coil; a hoop belt detection block 303 is slidably inserted into the clamping test block 301, and the hoop belt detection block 303 is located between the two convex pads 302; the hoop belt detection block 303 protrudes from the clamping test block 301; at the bottom of the hoop belt detection block 303, a hoop belt switch 304 is fixedly installed, and the end of the hoop belt switch 304 is attached to the clamping test block 301; an inner electromagnet 3011 is embedded in the top of the clamping test block 301; the explosion coil elastic piece 1011, the power connection block 1012, the inner electromagnet 3011 and the outer electromagnet 105 are connected in series to a power source; the support point testing part 3 further includes: a hoop belt spring 305. A hoop belt spring 305 is fixedly installed on the clamping test block 301, and the end of the hoop belt spring 305 is connected to the bottom of the hoop belt detection block 303; the hoop belt spring 305 is located outside the hoop belt switch 304; the support point testing part 3 can be used to detect the accuracy of the steel coil lifting position, can improve the safety of steel coil lifting, and avoid the main stress point on the top of the clamping test block 301 squeezing the hoop belt of the steel coil during lifting. Once the initial position of the steel coil hoop belt is directly above, at this time, when the top of the clamping test block 301 is lifted, it directly squeezes the hoop belt of the steel coil, and the stress on the hoop belt of the steel coil is too concentrated. At this time, the hoop belt of the steel coil directly above is easily squeezed and broken. After the fastening effect of the steel coil is reduced, it is easy to directly cause safety hazards such as explosion of the coil. The detection of this structure is more direct, can improve the quality of steel coil lifting, especially for port ship transfer, and avoid damaging the ship. The steel coil hoop belt is located outside the interval between the two convex pads 302, and the two convex pads 302 are used to disperse the stress, so that the hoop belt will not bear great pressure, ensuring the safety of the steel coil hoop belt. At the same time, the radius of the clamping test block 301 is smaller than the middle hole of the steel coil, ensuring that as long as the steel coil hoop belt is outside the range of the hoop belt detection block 303, it will not bear great concentrated stress.

[0036] The disengagement control member 4 comprises: a disengagement electromagnet 401, a positioning pin 402 and a positioning tension spring 403. The disengagement electromagnet 401 is fixedly mounted on the hoisting main arm 101 through a bracket; a positioning pin 402 is slidably mounted on the hoisting main arm 101; the positioning pin 402 passes through the side wall of the hoisting main arm 101; the disengagement electromagnet 401 is used to magnetically attract the positioning pin 402; a positioning tension spring 403 is sleeved on the positioning pin 402; one end of the positioning tension spring 403 is connected to the positioning pin 402, and the other end of the positioning tension spring 403 is connected to the hoisting main arm 101. The side of the arm 101; the disengagement electromagnet 401 is electrically connected to the band switch 304, and a switch is connected between the band switch 304 and the band switch 304; the hanging connection member 5 includes: a rotating shaft 501, a hanging shaft 502 and a lifting hydraulic cylinder 503, the rotating shaft 501 is rotatably mounted on the lifting main arm 101; the hanging shaft 502 is slidably sleeved on the rotating shaft 501; a hanging ring is provided on the top of the hanging shaft 502; a lifting hydraulic cylinder 503 is fixedly sleeved at the bottom of the hanging shaft 502, and the output shaft of the lifting hydraulic cylinder 503 is fixedly mounted on the rotating shaft 50 1 inside; an annular groove is provided on the rotary shaft 501; a positioning pin 402 is slidably inserted in the annular groove on the rotary shaft 501, and the hanging connector 5 cooperates with the disengagement control member 4. When the steel coil is hoisted, if the lifting position of the steel coil hoop is inaccurate, the shaft breaking work can be automatically performed in cooperation with the control of the support point test part 3, further avoiding the problem that the staff still violates the regulations even when they know that the steel coil hoop is squeezed by concentrated stress, which can improve the hoisting safety, directly break the shaft, ensure hoisting safety, simple structure control, and the hoop switch 304 When squeezed, the disengagement electromagnet 401 is controlled to pass the electromagnetic attraction positioning pin 402. At this time, the disengagement electromagnet 401 can magnetically attract the positioning pin 402 and pull it out from the lifting main arm 101, so as to release the plug-in rotating shaft 501 and realize the positioning release. At this time, the rotating shaft 501 can be pulled out from the lifting main arm 101 to realize the limit release, thereby avoiding illegal lifting. When the steel coil is lifted in a standard manner, the position of the steel coil hoop should be observed first. If the hoop is in the middle of the top of the steel coil, the steel belt should be rotated or the lifting point should be adjusted with a crowbar or other instrument.

[0037] Embodiment 2. On the basis of Embodiment 1, the roll test piece 6 includes: an inclined extrusion plate 601, a roll extrusion switch 602, and an extrusion spring 603. The inclined extrusion plate 601 is slidably installed on the side of the clamping test block 301; the bottom of the inclined extrusion plate 601 is fixedly installed with the roll extrusion switch 602; the roll extrusion switch 602 is electrically connected to the lifting hydraulic cylinder 503 and the alarm lamp 102; the bottom of the inclined extrusion plate 601 is fixedly installed with the extrusion spring 603, and the extrusion spring 603 is located outside the roll extrusion switch 602; the end of the extrusion spring 603 is connected to the inside of the clamping test block 301; the limit placement piece 7 includes: a limit arm 701, an insertion shaft 7011, and a sleeper 702. There are two limit arms 701, and the two limit arms 701 are respectively rotatably installed on the two clamping plates 202; the insertion shafts 7011 are respectively fixedly installed on the sides of the two limit arms 701; the sleeper 702 is inserted on the two insertion shafts 7011, and the sleeper 702 is of a triangular structure; there is a gap between the two ends of the sleeper 702 and the two limit arms 701; the limit placement piece 7 further includes: an electromagnet 703. The electromagnets 703 are respectively fixedly installed on the two clamping plates 202, and the electromagnets 703 magnetically attract the limit arms 701; the two electromagnets 703 are electrically connected to the roll extrusion switch 602. The limit placement piece 7 can cooperate with the roll test piece 6. When unloading, if the unloading ground of the steel coil is uneven and unstable, the steel coil will slide after unloading. Under the action of inertia, the steel coil is prone to inertial impact, affecting the stability of the crane, and there are also potential safety hazards of hurting people. At the same time, because the steel coil is heavy, it is completely impossible to hold it by manpower. In the traditional steel coil lifting work, when the steel coil is unloaded to the ground, the limiting sleeper should be placed first to prevent the steel coil from rolling. Once forgotten, there will be potential safety hazards. This structure can automatically control the placement of the sleeper 702 for limiting work when the steel coil rolls, and at the same time can cooperate with the lifting hydraulic cylinder 503 to directly lift the steel coil to avoid excessive displacement of the steel coil and play a role in resetting. The structure is more reasonable and the safety is stronger. When unloading the steel coil, if the steel coil rolls and deviates due to uneven ground, the inner wall of the rolling steel coil will squeeze the inclined extrusion plate 601 on one side, and the roll extrusion switch 602 will be squeezed, so that the power supply of the electromagnet 703 can be controlled to be cut off. At this time, the limit arm 701 drives the sleeper 702 to automatically lower under the action of gravity, and at the same time the lifting hydraulic cylinder 503 is also controlled to be opened to lift the lifting main arm 101 to play a role in pulling back.

[0038] Working principle of this embodiment: Place the clamping test block 301 in the middle of the steel coil. Control the two hydraulic cylinders 104 to drive the two telescopic small arms 103 to move inward. At this time, the clamping plates 202 on the telescopic small arms 103 clamp and fit the two ends of the steel coil. The lugs on the hanging shaft 502 are docked with the hook of the crane. As the crane lifts the hoisting main arm 101, under the action of the weight of the steel coil, the steel coil will pull down the clamping test block 301, driving the sliding displacement block 201 to generate a downward force. At this time, cooperate with the inclined strip 2011 to move in the guiding inclined groove 1031. Under the inclined guiding of the guiding inclined groove 1031, the clamping plate 202 will generate downward and inward pressures to squeeze and clamp the end of the steel coil, which is used to correct the two ends of the steel coil and improve the flatness of the two ends of the steel coil. After the steel coil is lifted, whether it is during the transfer process of the steel coil or before unloading the steel coil, when the steel coil explodes, at this time the steel coil expands rapidly and the outer diameter increases. At this time, the steel coil will lean against and squeeze the explosion-proof coil spring piece 1011 to fit the power connection block 1012. At this time, the outer electromagnet 105 can be energized to magnetically attract the outer side of the steel coil for limiting. Because the outer electromagnet 105 has magnetically attracted the steel coil, at this time the steel coil will also stably squeeze the explosion-proof coil spring piece 1011 to fit the power connection block 1012 to ensure the power supply quality. At the same time, the explosion-proof coil spring piece 1011 fitting the power connection block 1012 will also connect the inner electromagnet 3011. At this time, the inner electromagnet 3011 will be energized to magnetically attract the inner side of the steel strip to realize the magnetic attraction positioning of the two ends of the steel coil. When the clamping test block 301 is placed in the middle hole of the steel coil, as the clamping test block 301 is lifted, if there is a steel coil hoop at the top of the clamping test block 301 at this time, when the steel coil hoop is located at the two convex pads 302, the force will be more concentrated. At this time, the steel coil hoop will squeeze the hoop detection block 303, driving the hoop switch 304 to squeeze the clamping test block 301 to realize the control work. On the contrary, if the hoop of the steel coil is outside the hoop detection block 303, at this time the hoop detection block 303 will not be squeezed by the steel coil hoop. At the same time, at this time the steel coil hoop is outside the interval between the two convex pads 302, and the two convex pads 302 are used to disperse the stress, and the hoop will not bear a large pressure. When the hoop switch 304 is squeezed, the release electromagnet 401 can be controlled to be energized to magnetically attract the positioning pin 402. At this time, the release electromagnet 401 can magnetically attract the positioning pin 402 to be pulled out from the hoisting main arm 101, and the plug-in return shaft 501 can be released, realizing the positioning release. At this time, the return shaft 501 can be pulled out from the hoisting main arm 101 to realize the limit release, so as to avoid illegal hoisting in this way. When unloading the steel coil, slowly lower the hoisting main arm 101. If the steel coil rolls and deviates due to uneven ground, because the hoisting main arm 101 itself has its own weight and is in a relatively static position, at this time the inner wall of the rolling steel coil will squeeze the inclined extrusion plate 601 on one side, and the side-tilt extrusion switch 602 will be squeezed, and the electromagnet 703 can be controlled to be powered off. The switch connected between the hoop switch 304 and the hoop switch 304 can be disconnected in advance to prevent accidental touch. At this time, the limit arm 701 drives the sleeper 702 to automatically lower under the action of gravity, and at the same time the lifting hydraulic cylinder 503 is also controlled to be opened.The lifting and hoisting main arm 101 plays a role in pulling back to prevent the steel coil from continuing to displace. The two clamping plates 202 can be slowly controlled to move outward to release the clamping of the steel coil. At this time, the limit arm 701 will also drive the insertion shaft 7011 to move and pull out from the sleeper 702. At this time, the sleeper 702 can play a role in limiting the steel coil on the ground, improving safety.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety detection device for port lifting equipment, comprising a lifting connection part (1), on which two clamping connectors (2) are installed, characterized in that: The two clamping connectors (2) are used to clamp the steel coil; the two clamping connectors (2) are respectively provided with support point test parts (3); the two support point test parts (3) are respectively used to support the steel coil; the hoisting connector (1) is used to prevent the coil from exploding; Two disengagement control members (4) are installed on the lifting connection part (1); a hanging connection member (5) is installed on the lifting connection part (1); the two disengagement control members (4) are used to insert and position the hanging connection member (5); Two roll test pieces (6) are respectively installed on both sides of the two support point test parts (3); the four roll test pieces (6) are respectively used to detect the lateral displacement of the steel coil; two limit release pieces (7) are installed on the lifting connection part (1); the two limit release pieces (7) are respectively used to prevent the steel coil from rolling; The hoisting connection part (1) comprises: a hoisting main arm (101), a coil-blasting shrapnel (1011) and a power connection block (1012); the bottom of the hoisting main arm (101) is fixedly mounted with a coil-blasting shrapnel (1011); the coil-blasting shrapnel (1011) is an elastic conductive steel sheet; the bottom of the hoisting main arm (101) is fixedly mounted with a power connection block (1012); the end of the coil-blasting shrapnel (1011) is aligned with the power connection block (1012); the bottom of the hoisting main arm (101) is fixedly mounted with two external electromagnets (105), the two external electromagnets (105) are respectively used for magnetically attracting steel coils; The support point test section (3) comprises: a clamping test block (301) and an inner electromagnet (3011); the inner electromagnet (3011) is embedded on the top of the clamping test block (301); and the explosive roll shrapnel (1011), the power connection block (1012), the inner electromagnet (3011) and the outer electromagnet (105) are connected in series to a power supply.

2. A safety detection device for port lifting equipment according to claim 1, characterized in that: The hoisting connection part (1) further comprises: an alarm light (102), a telescopic arm (103), a guide inclined slot (1031), a hydraulic cylinder (104) and an external electromagnet (105); an alarm light (102) is fixedly mounted on the top of the hoisting main arm (101); telescopic arms (103) are slidably plugged into the two sides of the hoisting main arm (101), and the telescopic arms (103) are L-shaped structures; the two telescopic arms (103) are respectively provided with a guide inclined slot (1031); the two telescopic arms (103) are respectively fixedly mounted with a hydraulic cylinder (104), and the output shafts of the two hydraulic cylinders (104) are respectively fixedly mounted on the inner side of the hoisting main arm (101).

3. A safety detection device for port lifting equipment according to claim 2, characterized in that: The clamping connection member (2) comprises: a sliding displacement block (201), an inclined bar (2011), a connecting tension spring (2012) and a clamping plate (202); the sliding displacement block (201) is slidably mounted on the telescopic arm (103); two inclined bars (2011) are obliquely mounted on the sliding displacement block (201); the two inclined bars (2011) are respectively slidably mounted in the guiding inclined grooves (1031) on the same side; the guiding inclined grooves (1031) are used to guide the inclined bars (2011) to move inward; a connecting tension spring (2012) is fixedly mounted on the top of the sliding displacement block (201), and the end of the connecting tension spring (2012) is connected to the inner side of the telescopic arm (103); a clamping plate (202) is fixedly mounted on the side of the sliding displacement block (201), and the clamping plate (202) is used to clamp the two ends of the steel coil.

4. A safety detection device for port lifting equipment according to claim 3, characterized in that: The support point test part (3) further comprises: a raised pad (302), a band detection block (303) and a band switch (304); the clamping test block (301) is fixedly mounted in the middle of the clamping plate (202); raised pads (302) are fixedly mounted on both sides of the top of the clamping test block (301); the two raised pads (302) are used to support the steel coil; a band detection block (303) is slidably inserted on the clamping test block (301), and the band detection block (303) is located between the two raised pads (302); the band detection block (303) protrudes from the clamping test block (301); a band switch (304) is fixedly mounted on the bottom of the band detection block (303), and the end of the band switch (304) is attached to the clamping test block (301).

5. A safety detection device for port lifting equipment according to claim 4, characterized in that: The support point testing section (3) further comprises: a band spring (305); the band spring (305) is fixedly mounted on the clamping test block (301), and the end of the band spring (305) is connected to the bottom of the band detection block (303); the band spring (305) is located outside the band switch (304).

6. A safety detection device for port lifting equipment according to claim 4, characterized in that: The disengagement control component (4) comprises: a disengagement electromagnet (401), a positioning pin (402) and a positioning tension spring (403); the disengagement electromagnet (401) is fixedly mounted on the hoisting main arm (101) via a bracket; a positioning pin (402) is slidably mounted on the hoisting main arm (101); the positioning pin (402) passes through the side wall of the hoisting main arm (101); the disengagement electromagnet (401) is used to magnetically attract the positioning pin (402); a positioning tension spring (403) is sleeved on the positioning pin (402); an end of the positioning tension spring (403) is connected to the positioning pin (402), and the other end of the positioning tension spring (403) is connected to the side of the hoisting main arm (101); the disengagement electromagnet (401) is electrically connected to the band switch (304).

7. A safety detection device for port lifting equipment according to claim 6, characterized in that: The hanging connection member (5) comprises: a rotating shaft (501), a hanging shaft (502) and a lifting hydraulic cylinder (503); the rotating shaft (501) is rotatably mounted on the lifting main arm (101); the hanging shaft (502) is slidably sleeved on the rotating shaft (501); a hanging ring is provided on the top of the hanging shaft (502); the lifting hydraulic cylinder (503) is fixedly sleeved on the bottom of the hanging shaft (502), and the output shaft of the lifting hydraulic cylinder (503) is fixedly mounted on the inner side of the rotating shaft (501); an annular groove is provided on the rotating shaft (501); and a positioning pin (402) is slidably inserted into the annular groove on the rotating shaft (501).

8. A safety detection device for port lifting equipment according to claim 7, characterized in that: The roll test piece (6) comprises: an inclined extrusion plate (601), a roll extrusion switch (602) and an extrusion spring (603); the inclined extrusion plate (601) is slidably mounted on the side of the clamping test block (301); the roll extrusion switch (602) is fixedly mounted on the bottom of the inclined extrusion plate (601); the roll extrusion switch (602) is electrically connected to the lifting hydraulic cylinder (503) and the alarm light (102); the extrusion spring (603) is fixedly mounted on the bottom of the inclined extrusion plate (601), and the extrusion spring (603) is located on the outside of the roll extrusion switch (602); the end of the extrusion spring (603) is connected to the inside of the clamping test block (301).

9. A safety detection device for port lifting equipment according to claim 3, characterized in that: The limiting delivery member (7) comprises: a limiting arm (701), an insertion shaft (7011) and a sleeper (702); two limiting arms (701) are provided, and the two limiting arms (701) are rotatably mounted on two clamping plates (202) respectively; the insertion shafts (7011) are fixedly mounted on the sides of the two limiting arms (701) respectively; the sleepers (702) are inserted on the two insertion shafts (7011), and the sleepers (702) are of a triangular structure; and gaps are provided between the two ends of the sleeper (702) and the two limiting arms (701).

10. A safety detection device for port lifting equipment according to claim 9, characterized in that: The position-limiting delivery member (7) further comprises an electromagnet (703), the two clamping plates (202) are respectively fixedly mounted with the electromagnet (703), and the electromagnet (703) magnetically attracts the position-limiting arm (701); the two electromagnets (703) are electrically connected to the roll extrusion switch (602).

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