Safety detection device for port hoisting equipment

Abstract

The invention discloses a safety detection device for port hoisting equipment, and relates to the technical field of hoisting equipment detection. Comprising a hoisting connecting part, two clamping connecting pieces are installed on the hoisting connecting part, and the two clamping connecting pieces are used for clamping a steel coil; the two clamping connecting pieces are respectively provided with a supporting point testing part. The two supporting point testing parts are respectively used for supporting a steel coil; the hoisting connecting part is used for preventing a roll from being exploded; the device can be used for detecting coil explosion of a steel coil, can prevent the steel coil from hurting workers after the steel coil is exploded, and can prevent economic loss and personal injury caused by the fact that the steel coil is not found when the steel coil is unloaded, the steel coil is directly unloaded and the steel coil is directly bounced off after the steel coil is not clamped and limited by a clamping connecting piece; the problem that existing port hoisting equipment is inconvenient to carry out anti-explosion coil detection protection and inconvenient to carry out strap position detection hoisting protection is solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment detection, in particular to a safety detection device for port lifting equipment. Background Art

[0002] Among the port lifting equipment, the lifting sling is an important device for loading cargo and an important guarantee for the safety of cargo lifting. For example, in the lifting of steel coils, the steel coils are usually bound by hoops to keep them in coils for transportation. Once the hoops 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 U-shaped hangers through the steel coils. The current port lifting equipment is not convenient for safety inspection, and manual observation is mostly used. The explosion of steel coils is easy to cause accidents, and it is not convenient to perform anti-explosion detection and protection. At the same time, when the steel coils are hoisted, the slings are often directly inserted into the middle of the steel coils. If the hoop of the steel coil is at the top, the force point of the sling is directly concentrated on the hoop. The huge pressure is easy to cause the hoop to break, causing safety accidents, and it is not convenient to perform hoop position detection and lifting protection. At the same time, it is not convenient to perform steel coil deviation test. When the steel coils are hoisted and unloaded, the steel coils are easily injured when rolling displacement occurs due to the influence of the terrain. It is not convenient to perform reverse traction protection, and the hoisting safety of the steel coils is not good.

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

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

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety detection device for port lifting equipment, comprising a lifting connection part, on which two clamping connections are installed, and the two clamping connections are used to clamp steel coils; support point test parts are respectively installed on the two clamping connections; the two support point test parts are respectively used to support steel coils; the lifting connection part is used to prevent the coil from exploding; two disengagement control parts are installed on the lifting connection part; a hanging connection part is installed on the lifting connection part; the two disengagement control parts are used to The plug-in positioning hanging connection piece is used for plugging and positioning; two roll test pieces are respectively installed on both sides of the two support point test parts; the four roll test pieces are respectively used to detect the lateral displacement of the steel coil; two limit release pieces are installed on the lifting connection part; the two limit release pieces are respectively used to prevent the steel coil from rolling; the lifting connection part includes: a lifting main arm, a coil-exploding shrapnel and a power connection block, and a coil-exploding shrapnel is fixedly installed at the bottom of the lifting main arm; the coil-exploding shrapnel is an elastic conductive steel sheet; a power connection block is fixedly installed at the bottom of the lifting main arm; the end of the coil-exploding shrapnel is aligned with the power connection block.

[0006] Preferably, the lifting connection part also includes: an alarm light, a telescopic arm, a guide inclined groove, a hydraulic cylinder and an external electromagnet. An alarm light is fixedly installed on the top of the lifting main arm; telescopic arms are slidably inserted on both sides of the lifting main arm, and the telescopic arms are L-shaped structures; guide inclined grooves are respectively opened on the two telescopic arms; hydraulic cylinders are respectively fixedly installed on the two telescopic arms, and the output shafts of the two hydraulic cylinders are respectively fixedly installed on the inner side of the lifting main arm; two external electromagnets are fixedly installed on the bottom of the lifting main arm, and the two external electromagnets are respectively used for magnetically attracting steel coils.

[0007] Preferably, the clamping connection comprises: a sliding displacement block, an inclined bar, a connecting tension spring and a clamping plate, the sliding displacement block is slidably mounted on the telescopic arm; two inclined bars are obliquely mounted on the sliding displacement block; the two inclined bars are respectively slidably mounted in the guide inclined grooves on the same side; the guide inclined grooves are used to guide the inclined bars to move inward; a connecting tension spring is fixedly mounted on the top of the sliding displacement block, and the end of the connecting tension spring is connected to the inner side of the telescopic arm; a clamping plate is fixedly mounted on the side of the sliding displacement block, and the clamping plate is used to clamp the two ends of the steel coil.

[0008] Preferably, the support point test part includes: a clamping test block, an inner electromagnet, a raised pad, a hoop detection block and a hoop switch, the clamping test block is fixedly installed in the middle of the clamping plate; raised pads are fixedly installed on both sides of the top of the clamping test block; the two raised pads are used to support the steel coil; a hoop detection block is slidably inserted on the clamping test block, and the hoop detection block is located between the two raised pads; the hoop detection block protrudes from the clamping test block; a hoop switch is fixedly installed on the bottom of the hoop detection block, and the end of the hoop switch is attached to the clamping test block; an inner electromagnet is embedded in the top of the clamping test block; the blasting coil shrapnel, the power connection block, the inner electromagnet and the outer electromagnet are connected in series with a power supply.

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

[0010] Preferably, the disengagement control component includes: a disengagement electromagnet, a positioning pin and a positioning tension spring, the disengagement electromagnet is fixedly installed on the lifting main arm through a bracket; a positioning pin is slidably installed on the lifting main arm; the positioning pin passes through the side wall of the lifting main arm; the disengagement electromagnet is used to magnetically attract the positioning pin; a positioning tension spring is sleeved on the positioning pin; one 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 lifting main arm; the disengagement electromagnet is electrically connected to the strap switch, and a switch is connected between the strap switch and the strap switch.

[0011] Preferably, the hanging connecting part includes: a rotating shaft, a hanging shaft and a lifting hydraulic cylinder, the rotating shaft is rotatably installed on the lifting main arm; the hanging shaft is slidably sleeved on the rotating shaft; a lifting ring is provided on the top of the hanging shaft; a lifting hydraulic cylinder is fixedly sleeved on the bottom of the hanging shaft, and the output shaft of the lifting hydraulic cylinder is fixedly installed on the inner side of the rotating shaft; the rotating shaft is provided with an annular groove; a positioning pin is slidably inserted in the annular groove on the rotating shaft.

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

[0013] Preferably, the limiting release component includes: a limiting arm, an insertion shaft and a sleeper, wherein two limiting arms are provided, and the two limiting arms are rotatably mounted on two clamping plates respectively; the insertion shafts are fixedly mounted on the sides of the two limiting arms respectively; the sleepers are plugged into the two insertion shafts, and the sleepers are of a triangular structure; and gaps are provided between the two ends of the sleeper and the two limiting arms.

[0014] Preferably, the limiting release member further comprises: an electromagnet, the two clamping plates are respectively fixedly mounted with the electromagnet, and the electromagnet magnetically attracts the limiting arm; the two electromagnets are electrically connected to the roll extrusion switch.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a lifting connection part, which can be used to detect the explosion of the steel coil, so as to avoid injuries to the staff after the steel coil explodes. At the same time, this structure can avoid the explosion of the steel coil without being discovered when the steel coil is unloaded, and the steel coil is directly unloaded. After the clamping limit of the clamping connection is lost, the steel coil directly jumps out, causing economic losses and personal injuries. The structure has direct detection and can automatically perform magnetic positioning. It can simultaneously position the outer end and the inner end of the steel coil, which is convenient for the staff to re-reinforce the hoop.

[0016] 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.

[0017] 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

[0018] Figure 1 It is a schematic diagram of the overall structure of a safety detection device for port lifting equipment of the present invention; Figure 2 This is a schematic diagram of the installation position of the support point test part of the present invention; Figure 3 This is a schematic diagram of the bottom structure of a safety detection device for port lifting equipment of the present invention; Figure 4 It is a cross-sectional view of the lifting connection structure of the present invention; Figure 5 It is a schematic diagram of the bottom structure of the lifting connection part of the present invention; Figure 6 It is a schematic diagram of the structure of the clamping connector of the present invention; Figure 7 It is a cross-sectional view of the roll test piece structure of the present invention; Figure 8 For the present invention Figure 2 A magnified view of the structure of the middle E region; Fig. 9 This is a cross-sectional view of the structure of the release control member of the present invention; Fig.10 This is a schematic diagram of the position of the positioning pin of the present invention; Fig.11 It is a schematic diagram of the structure of the position-limiting delivery member of the present invention.

[0019] In the figure: 1. Lifting connection; 101. Lifting main arm; 1011. Explosion coil shrapnel; 1012. Power connection block; 102. Alarm light; 103. Telescopic arm; 1031. Guide chute; 104. Hydraulic cylinder; 105. External electromagnet; 2. Clamping connection; 201. Sliding displacement block; 2011. Oblique strip; 2012. Connection tension spring; 202. Clamping plate; 3. Support point test part; 301. Clamping test block; 3011. Internal electromagnet; 302. Raised pad; 303. Hoop Belt detection block; 304, strap switch; 305, strap spring; 4, disengagement control part; 401, disengagement electromagnet; 402, positioning pin; 403, positioning tension spring; 5, hanging connection part; 501, rotary shaft; 502, hanging shaft; 503, lifting hydraulic cylinder; 6, roll test piece; 601, tilt extrusion plate; 602, roll extrusion switch; 603, extrusion spring; 7, limit release part; 701, limit arm; 7011, plug shaft; 702, sleeper; 703, electromagnet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1 to 11 As shown: The present invention provides a technical solution: a safety detection device for port lifting equipment, comprising a lifting connection part 1, on which two clamping connectors 2 are installed, and the two clamping connectors 2 are used to clamp steel coils; the two clamping connectors 2 are respectively installed with support point test parts 3; the two support point test parts 3 are respectively used to support steel coils; the lifting connection part 1 is used to prevent the coil from exploding; two disengagement control parts 4 are installed on the lifting connection part 1; a hanging connection part 5 is installed on the lifting connection part 1; the two disengagement control parts 4 are used to insert and position the hanging connection part 5; the two support point test parts Two roll test pieces 6 are respectively installed on both sides; 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 lifting connection part 1 includes: a lifting main arm 101, a coil-blasting shrapnel 1011 and a power connection block 1012, and a coil-blasting shrapnel 1011 is fixedly installed at the bottom of the lifting main arm 101; the coil-blasting shrapnel 1011 is an elastic conductive steel sheet; a power connection block 1012 is fixedly installed at the bottom of the lifting main arm 101; the end of the coil-blasting shrapnel 1011 is aligned with the power connection block 1012.

[0022] The hoisting connection part 1 further includes: an alarm light 102, a telescopic arm 103, a guide chute 1031, a hydraulic cylinder 104 and an external electromagnet 105. The alarm light 102 is fixedly installed on the top of the hoisting main arm 101; the telescopic arms 103 are slidably inserted on both 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 guide chute 1031; the two telescopic arms 103 are respectively fixedly installed with hydraulic cylinders 104, and the output shafts of the two hydraulic cylinders 104 are respectively fixedly installed on the inner side of the hoisting main arm 101; two external electromagnets 105 are fixedly installed on the bottom of the hoisting main arm 101, and the two external electromagnets 105 are respectively used for magnetically attracting steel coils; the clamping connection part 2 includes: a sliding displacement block 20 1. Oblique strip 2011, connecting tension spring 2012 and clamping plate 202, the sliding displacement block 201 is slidably installed on the telescopic arm 103; two oblique strips 2011 are obliquely installed on the sliding displacement block 201; the two oblique strips 2011 are respectively slidably installed in the guiding inclined groove 1031 on the same side; the guiding inclined groove 1031 is used to guide the oblique strip 2011 to move inward; a connecting tension spring 2012 is fixedly installed 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 installed on the side of the sliding displacement block 201, and the clamping plate 202 is used to clamp and fit the two ends of the steel coil; the hoisting connection part 1 is used to detect the explosion of the steel coil, which can avoid harm to the staff after the steel coil explodes, and at the same time The present structure can avoid the situation that the steel coil explodes without being discovered during unloading, and the steel coil is directly unloaded. After the clamping limit of the clamping connector 2 is lost, the steel coil directly jumps out, causing economic losses and personal injuries. The present structure has direct detection and can automatically perform magnetic positioning. It can simultaneously position the outer and inner ends of the steel coil, which is convenient for the staff to re-reinforce the hoop. The clamping connector 2 can be used to improve the stability of the steel coil during actual lifting, and at the same time, it plays a role in clamping and aligning the two ends of the steel coil to prevent one end of the steel coil from protruding, affecting the subsequent placement of the steel coil and squeezing the problem of the hoop breaking. The two hydraulic cylinders 104 are controlled to drive the two telescopic arms 103 to move inward. At this time, the clamping plates 202 on the telescopic arms 103 clamp and fit the two ends of the steel coil. At this time, The lifting ear on the hanging shaft 502 is connected to the hook of the crane. As the crane lifts the main arm 101, the steel coil will pull down the clamping test block 301 under the action of the weight of the steel coil, driving the sliding displacement block 201 to generate a downward force. At this time, the inclined bar 2011 moves in the guiding inclined groove 1031. Under the oblique guidance of the guiding inclined groove 1031, the clamping plate 202 will generate downward and inward pressure to squeeze and clamp the end of the steel coil to correct the two ends of the steel coil. When the steel coil explodes, the steel coil expands rapidly. At this time, the steel coil will be pressed against the extruding coil shrapnel 1011 to fit the power connection block 1012. At this time, the outer electromagnet 105 can be electromagnetically attracted to the outside of the steel coil, and the inner electromagnet 3011 can be electromagnetically attracted to the inside of the steel belt to achieve magnetic attraction and positioning of the two ends of the steel coil.

[0023] The support point test part 3 includes: a clamping test block 301, an internal electromagnet 3011, a protruding pad 302, a band detection block 303 and a band switch 304. The clamping test block 301 is fixedly installed in the middle of the clamping plate 202; protruding pads 302 are respectively fixedly installed on both sides of the top of the clamping test block 301; the two protruding 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 protruding pads 302; the band detection block 303 protrudes from the clamping Test block 301; a band switch 304 is fixedly installed at the bottom of the band detection block 303, and the end of the band switch 304 is attached to the clamping test block 301; an inner electromagnet 3011 is embedded at the top of the clamping test block 301; the explosive roll shrapnel 1011, the power connection block 1012, the inner electromagnet 3011 and the outer electromagnet 105 are connected in series with the power supply; the support point test part 3 also includes: a band spring 305, a band spring 305 is fixedly installed 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 on the outside of the band switch 304; the support point test part 3 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 301 from being squeezed on the band of the steel coil when the steel coil is lifted. Once the initial position of the steel coil band is directly above, the clamping test block 301 directly squeezes the steel coil band when lifting, and the force on the steel coil band is too concentrated. At this time, the steel coil band located directly above is easily squeezed and broken, and the fastening effect of the steel coil is reduced. After that, it is easy to directly cause safety hazards such as explosion of the steel coil. The detection of this structure is more direct, which can improve the quality of steel coil lifting, especially for port ship transshipment, to avoid damage to the ship. The steel coil hoop is located outside the interval between the two raised pads 302. The two raised pads 302 are used to disperse the stress. The hoop will not bear too much pressure, which ensures the safety of the steel coil hoop. 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 is outside the hoop detection block 303, it will not be subjected to a large concentrated stress.

[0024] 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.

[0025] Embodiment 2, on the basis of embodiment 1, 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; the limit The positioning delivery member 7 includes: a limiting arm 701, an insertion shaft 7011 and a sleeper 702. There are two limiting arms 701, and the two limiting arms 701 are rotatably mounted on the two clamping plates 202 respectively; the two limiting arms 701 are fixedly mounted with the insertion shafts 7011 on the sides; the sleepers 702 are plugged on the two insertion shafts 7011, and the sleepers 702 are triangular structures; there are gaps between the two ends of the sleepers 702 and the two limiting arms 701; the limiting delivery member 7 also includes: an electromagnet 703, and the electromagnets 703 are fixedly mounted on the two clamping plates 202 respectively, and the electromagnets 703 magnetically attract the limiting arms 701; the two An electromagnet 703 is electrically connected to the roll squeeze switch 602, and a limit release piece 7 can be used in conjunction with the roll test piece 6. During unloading, if the unloading ground of the steel coil is not stable, the steel coil will slide after unloading. Under the action of inertia, the steel coil is prone to inertial impact, which will affect the stability of the crane and pose a safety hazard of injury. At the same time, due to the heavy weight of the steel coil, it is completely impossible to hold it by manpower. In traditional steel coil hoisting work, when the steel coil is unloaded to the ground, a limit sleeper should be placed first to prevent the steel coil from rolling. Once forgotten, there will be a safety hazard. The present structure can automatically control the release of the sleeper when the steel coil rolls. 702 performs the limiting work, 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, the steel coil rolls and deviates due to the uneven ground. The inner wall of the rolling steel coil will squeeze the inclined squeezing plate 601 on one side, and the tilt squeezing switch 602 will be squeezed, which can control the electromagnet 703 to cut off the power. At this time, the limiting arm 701 drives the sleeper 702 to automatically lower under the action of gravity. At the same time, the lifting hydraulic cylinder 503 is also controlled to open, lifting the hoisting main arm 101 to play a pulling back role.

[0026] The working principle of this embodiment is as follows: the clamping test block 301 is placed in the middle of the steel coil, and the two hydraulic cylinders 104 are controlled to drive the two telescopic arms 103 to move inward. At this time, the clamping plates 202 on the telescopic arms 103 clamp and fit the two ends of the steel coil, and the lifting ears on the hanging shaft 502 connect with the hook of the crane. As the crane lifts the main arm 101, the steel coil will pull the clamping test block 301 downward under the action of the weight of the steel coil, driving the sliding displacement block 201 to generate a downward force. At this time, the inclined bar 2011 moves in the guiding inclined groove 1031. Under the oblique guidance of the guiding inclined groove 1031, the clamping plate 202 will generate downward and inward pressure to squeeze and clamp the ends of the steel coil, which is used to correct the two ends of the steel coil and improve the flatness of the ends of the steel coil. After the steel coil is lifted, whether it is the steel coil, During the transportation process or before the steel coil is unloaded, when the steel coil explodes, the steel coil expands rapidly and the outer diameter increases. At this time, the steel coil will stick to and squeeze the exploding coil spring piece 1011 and fit the power connection block 1012. At this time, the outer electromagnet 105 can electromagnetically attract the outer side of the steel coil to limit it. Because the outer electromagnet 105 has magnetically attracted the steel coil, the steel coil will also stably squeeze the exploding coil spring piece 1011 and fit the power connection block 1012 to ensure the power supply quality. At the same time, the exploding coil spring piece 1011 and fit the power connection block 1012 will also connect the inner electromagnet 3011. At this time, the inner electromagnet 3011 will electromagnetically attract the inner side of the steel belt to achieve magnetic 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 any When the steel coil band is located at the two raised pads 302, the force will be concentrated, and the steel coil band will squeeze the band detection block 303, driving the band switch 304 to squeeze the clamping test block 301 to realize the control work. On the contrary, if the steel coil band is outside the band detection block 303, the band detection block 303 will not be squeezed by the steel coil band. At the same time, the steel coil band is located outside the interval between the two raised pads 302 at this time. The two raised pads 302 are used to disperse the stress, and the band will not be subjected to greater pressure. When the band switch 304 is squeezed, the disengagement electromagnet 401 can be 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. The plug-in slewing shaft 501 is released to realize the positioning release. At this time, the slewing shaft 501 can be pulled out from the lifting main arm 101 to realize the limit release, so as to avoid illegal lifting. When unloading the steel coil, the lifting main arm 101 is slowly lowered. If the steel coil rolls and deviates due to the uneven ground, because the lifting main arm 101 has its own weight and is in a relatively static position, the inner wall of the rolling steel coil will squeeze the inclined squeezing plate 601 on one side, and the tilt squeezing switch 602 will be squeezed, which can control the electromagnet 703 to cut off the power, and the switch connected between the strap switch 304 and the strap switch 304 can be disconnected in advance to prevent accidental touch. At this time, the limit arm 701 drives the sleeper 702 to be automatically lowered under the action of gravity, and the lifting hydraulic cylinder 503 is also controlled to open.Lifting the main arm 101 plays a role of pulling back to prevent the steel coil from continuing to move. The two clamping plates 202 can be slowly controlled to move outward to release the clamped steel coil. At this time, the limit arm 701 will also drive the plug shaft 7011 to move and be pulled out from the sleeper 702. At this time, the sleeper 702 can play the role of limiting the steel coil on the ground, improving safety.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 blasting spring piece (1011) and a power connection block (1012); the bottom of the hoisting main arm (101) is fixedly mounted with a blasting spring piece (1011); the blasting spring piece (1011) is an elastic conductive steel sheet; the bottom of the hoisting main arm (101) is fixedly mounted with a power connection block (1012); and the end of the blasting spring piece (1011) is aligned with the power connection block (1012).

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); and two external electromagnets (105) are fixedly mounted on the bottom of the hoisting main arm (101), and the two external electromagnets (105) are respectively used for magnetically attracting steel coils.

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) comprises: a clamping test block (301), an internal electromagnet (3011), 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 respectively 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 plugged on the clamping test block (301), and the ... The measuring 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 installed at the bottom of the band detection block (303), and the end of the band switch (304) is attached to the clamping test block (301); an inner electromagnet (3011) is embedded at 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.

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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