A continuous detection device for crane lifting moment

Abstract

The present invention discloses a continuous detection device for the lifting torque of a crane, which relates to the technical field of torque detection, and comprises a base and a continuous device detection. A support frame is rotatably installed on the top of the base, a winding device is fixedly installed on the surface of the support frame, a lifting device is arranged below the support frame, a rope is fixedly installed on the surface of the winding device, and the other end of the rope is fixedly sleeved on the surface of the lifting device; wherein the continuous detection device comprises a hollow box, a torque detection plate, a connecting rod, a fixed block, a pulley, a hollow column, a hollow rod and a round rod, the weight of the goods will straighten the rope, the straightened rope will drive the pulley to move upward, the upward movement of the pulley will drive the fixed block to move upward, and the hollow box is fixedly installed on the inner wall of the support frame to prevent the rope from being instantly straightened when the heavy object is directly lifted, which will reduce the service life of the rope and may cause damage to the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of moment detection, and in particular to a continuous detection device for crane lifting moment. Background Art

[0002] The continuous moment detection device of the crane is usually based on sensors and data processing systems. The sensors can be installed at various key parts of the crane, such as hooks, ropes or booms, to monitor the stress conditions of each part in real time.

[0003] The patent with the patent announcement number CN210457217U relates to a continuous detection device for the lifting moment of a crane, including a first arched steel plate and a second arched steel plate, the two ends of which are welded on the crane, the first arched steel plate and the second arched steel plate are arranged opposite to each other, a displacement detection sensitive component is provided on the first arched steel plate, a position detection inducing component is provided on the second arched steel plate, the displacement detection sensitive component is fixed on the side wall of the first arched steel plate, the position detection inducing component is fixed on the inner side of the deformation of the second arched steel plate, and the displacement detection sensitive component and the position detection inducing component are located on the same horizontal plane. This patent generates different electrical signal outputs through the relative position changes of the displacement detection sensitive component and the position detection inducing component, thereby realizing the conversion of the magnitude of the lifting moment of the crane into an electrical signal with a certain corresponding relationship.

[0004] In the above patent, different electrical signal outputs are generated by the relative position changes between the displacement detection sensitive component and the position detection inducing component, thereby realizing the conversion of the crane lifting torque into an electrical signal with a definite corresponding relationship. However, the electrical signal detection may be subject to electromagnetic interference, affecting the transmission and quality of the signal, resulting in inaccurate data when detecting the torque, affecting the accuracy of the detection. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for continuously detecting the lifting moment of a crane, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a continuous detection device for the lifting torque of a crane, comprising a base and a continuous device detection, a support frame is rotatably installed on the top of the base, a winding device is fixedly installed on the surface of the support frame, a lifting device is arranged under the support frame, a rope is fixedly installed on the output end of the winding device, and the lifting device is arranged on the rope; wherein the continuous detection device comprises a hollow box; a torque detection plate, a connecting rod, a fixed block, a pulley, a hollow column, a hollow rod and a round rod, the weight of the cargo will straighten the rope, the straightened rope will drive the pulley to move upward, and the upward movement of the pulley will drive the fixed block Move upward, the upward movement of the fixed block will drive the connecting rod to move upward, the hollow box is fixedly installed on the inner wall of the support frame, the torque detection plate is slidably installed on the inner wall of the hollow box, the connecting rod is fixedly installed on the top of the torque detection plate, the fixed block is fixedly installed on the top of the connecting rod, the pulley is rotatably installed on the surface of the fixed block, the hollow column is fixedly installed on the top of the fixed block, the hollow rod is slidably installed on the inner wall of the hollow column, and the round rod is fixedly installed on the bottom of the inner wall of the hollow column. The liquid in the hollow column will enter the hollow rod through the water inlet hole on the surface of the round rod through squeezing. As the round rod rises, the water inlet holes will gradually become fewer, and the speed of entering the hollow rod will gradually decrease.

[0007] According to the above technical solution, the pulley contacts the surface of the rope, liquid is arranged inside the hollow column, a water inlet hole is opened on the surface of the round rod, and a No. 1 spring is arranged between the hollow rod and the hollow column, and the No. 1 spring is used to drive the hollow rod to reset.

[0008] According to the above technical scheme, the surface of the support frame is provided with an anti-winding device for preventing the ropes from being cross-entangled together, and the anti-winding device includes a conveying shaft, a belt, a transmission wheel, a threaded rod, a threaded block, an elastic telescopic rod and a ring. The conveying shaft is driven to rotate by the rotation of the winding device, the conveying shaft will drive the belt to rotate, the belt will drive the transmission wheel to rotate, and the transmission wheel will drive the threaded rod to rotate. The conveying shaft is fixedly installed on the output end of the winding device, and the transmission wheel is rotatably installed on the surface of the support frame, one end of the belt is transmission-installed on the surface of the conveying shaft, and the other end of the belt is transmission-installed on the surface of the transmission wheel, the threaded rod is fixedly installed on the surface of the transmission wheel, the threaded block is threadedly installed on the surface of the threaded rod, the threaded block is slidably installed on the top of the inner wall of the support frame, the elastic telescopic rod is fixedly installed on the bottom of the threaded block, and the ring is fixedly installed on the free end of the elastic telescopic rod.

[0009] According to the above technical solution, a fixing rod is fixedly installed on the inner wall of the circular ring, a roller is rotatably installed on the surface of the fixing rod, the roller contacts the surface of the rope, and contacts the roller during the process of winding or releasing the rope.

[0010] According to the above technical scheme, a protective device is arranged under the anti-winding device, and the protective device includes a sliding block, a sliding plate, a connecting plate, a square plate, a push plate, a brake block and an elastic telescopic plate. Through the reverse rotation of the winding device, the reverse rotation of the winding device will drive the threaded block to move in the direction away from the belt, and the threaded block will contact the sliding block during the movement in the direction away from the belt. A groove is opened on the inner wall of the support frame, and the sliding block is slidably installed on the inner wall of the groove, the sliding plate is fixedly installed on the bottom of the sliding block, the connecting plate is fixedly installed on the surface of the sliding plate, the square plate is fixedly installed on the surface of the connecting plate, the push plate is fixedly installed on the surface of the square plate, the brake block is slidably installed on the bottom of the inner wall of the groove, and the elastic telescopic plate is fixedly installed on the surface of the brake block. When the push plate continues to push the brake block to move in the direction of the winding device, the brake block will contact the winding device.

[0011] According to the above technical solution, a brake pad is provided at the free end of the elastic telescopic plate, a No. 2 spring is provided between the sliding block and the groove, and the sliding block is driven to reset by the No. 2 spring, a No. 3 spring is provided between the brake block and the groove, and the brake block is driven to reset by the No. 3 spring, and the brake blocks are provided on both sides of the winding device.

[0012] The lifting mechanism of the L-shaped plate is a key factor in the lifting of the lifting mechanism, and the lifting mechanism can also be used to lift the lifting device and lift the lifting mechanism, so that the lifting of the lifting mechanism can be effectively prevented from escaping the lifting of the lifting mechanism.

[0013] According to the above technical solution, a No. 1 torsion spring is arranged between the rotating plate and the support frame, and the rotating plate is driven to reset by the No. 1 torsion spring. A No. 4 spring is arranged between the trapezoidal plate and the support frame, and the trapezoidal plate is driven to reset by the No. 4 spring. A No. 5 spring is arranged between the slider and the slide groove, and the slider is driven to reset by the No. 5 spring. A clockwork spring is arranged between the elastic telescopic connecting plate and the trapezoidal plate, and the elastic telescopic connecting plate is driven to reset by the clockwork spring.

[0014] The present invention provides a continuous detection device for crane lifting moment, which has the following beneficial effects:

[0015] (1) This invention uses the rising height of the torque detection plate and the crane arm to finally combine the data to derive the final crane lifting torque. At the same time, by squeezing the liquid inside the hollow column, the liquid will enter the hollow rod through the water inlet holes on the surface of the round rod. As the round rod rises, the number of water inlet holes will gradually decrease, and the speed of entering the hollow rod will gradually decrease, preventing the rope from being instantly straightened when directly lifting heavy objects, which will reduce the service life of the rope and is not conducive to continuous detection.

[0016] (2) This invention drives the ring to move by rotating the winding device, and utilizes the movement of the ring to make the ropes evenly wound around the winding device during winding, so as to prevent the ropes from being intertwined or entangled during the winding process, causing entanglement between the ropes and affecting normal winding and use. The rollers will contact with the rope during the winding or unwinding process to prevent the rope from contacting the ring for a long time, causing wear on the rope, reducing its service life and causing failures during the detection process.

[0017] (3) This invention, when releasing the wire, pushes the sliding block to move, and uses the sliding block to drive the elastic telescopic plate to contact the winding device. By applying resistance to the winding device, the wire releasing speed of the winding device is reduced, thereby preventing the impact load generated when stopping or starting, which may cause equipment failure or damage. At the same time, by gradually increasing the resistance, the winding device can make the deceleration process smoother, reduce the impact force and inertia caused by rapid deceleration, thereby reducing the risk of damage to goods and equipment and improving the safety of the work site.

[0018] (4) In this invention, when lifting overweight cargo, the elastic telescopic connecting plate moves toward the winding device and gets stuck in the trapezoidal block, preventing the cargo from being overweight and the rope from being continuously wound up and possibly bearing a weight exceeding its rated load, causing the rope to be damaged or broken, thereby affecting the torque detection. At the same time, when the slider moves away from the rotating plate, the winding device stops winding and rotates in the reverse direction. The reverse rotation of the winding device drives the trapezoidal block to rotate in the reverse direction. The reverse rotation of the trapezoidal block pushes the elastic telescopic connecting plate to rotate upward, thereby preventing the elastic telescopic connecting plate from getting stuck in the trapezoidal block and affecting the reversal of the winding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the hollow box of the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A;

[0023] Figure 5 It is a schematic structural diagram of the anti-winding device of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the ring of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the protection device of the present invention;

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the structure of part B in the middle is enlarged;

[0027] Fig. 9 It is a schematic diagram of the brake block and the elastic telescopic connecting plate structure of the present invention.

[0028] In the figure: 1, base; 2, support frame; 3, lifting device; 4, rope; 5, winding device; 6, hollow box; 7, torque detection plate; 8, connecting rod; 9, fixed block; 10, pulley; 11, hollow column; 12, hollow rod; 13, round rod; 141, conveying shaft; 142, belt; 143, transmission wheel; 144, threaded rod; 145, threaded block; 146, elastic telescopic rod; 147, ring; 148, fixed rod; 149, roller; 151, sliding block; 152, sliding plate; 153, connecting plate; 154, square plate; 155, push plate; 156, brake block; 157, elastic telescopic plate; 161, L-shaped plate; 162, rotating plate; 163, trapezoidal plate; 164, elastic telescopic connecting plate; 165, limit block; 166, trapezoidal block; 167, slider. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-6 , one embodiment of the present invention is: a continuous detection device for the lifting moment of a crane, comprising a base 1, and also comprising a continuous device detection, a support frame 2 is rotatably mounted on the top of the base 1, a winding device 5 is fixedly mounted on the surface of the support frame 2, a lifting device 3 is arranged below the support frame 2, a rope 4 is fixedly mounted on the output end of the winding device 5, and the lifting device 3 is arranged on the rope 4;

[0031] Among them, the continuous detection device includes a hollow box 6; a torque detection plate 7, a connecting rod 8, a fixed block 9, a pulley 10, a hollow column 11, a hollow rod 12 and a round rod 13. The rising height of the torque detection plate 7 and the crane arm are combined with the data to obtain the final crane lifting torque. The detection efficiency is high and the speed is fast, and it will not be affected by external factors. The hollow box 6 is fixedly installed on the inner wall of the support frame 2, the torque detection plate 7 is slidably installed on the inner wall of the hollow box 6, the connecting rod 8 is fixedly installed on the top of the torque detection plate 7, the fixed block 9 is fixedly installed on the top of the connecting rod 8, the pulley 10 is rotatably installed on the surface of the fixed block 9, the hollow column 11 is fixedly installed on the top of the fixed block 9, the hollow rod 12 is slidably installed on the inner wall of the hollow column 11, and the round rod 13 is fixedly installed on the bottom of the inner wall of the hollow column 11 to prevent the rope 4 from being instantly straightened when the heavy object is directly lifted, which will reduce the service life of the rope 4 and may cause damage to the equipment.

[0032] The pulley 10 contacts the surface of the rope 4, liquid is arranged inside the hollow column 11, a water inlet hole is opened on the surface of the round rod 13, and a spring No. 1 is arranged between the hollow rod 12 and the hollow column 11, and the hollow rod 12 is reset by the spring No. 1.

[0033] The surface of the support frame 2 is provided with an anti-winding device for preventing the ropes 4 from being crossed and entangled together. The anti-winding device includes a conveying shaft 141, a belt 142, a transmission wheel 143, a threaded rod 144, a threaded block 145, an elastic telescopic rod 146 and a ring 147. The conveying shaft 141 is fixedly mounted on the output end of the winding device 5, and the transmission wheel 143 is rotatably mounted on the surface of the support frame 2. One end of the belt 142 is transmission mounted on the surface of the conveying shaft 141, and the other end of the belt 142 is transmission mounted on the surface of the transmission wheel 143. The threaded rod 144 is fixedly mounted on the surface of the transmission wheel 143, the threaded block 145 is threadedly mounted on the surface of the threaded rod 144, the threaded block 145 is slidably mounted on the top of the inner wall of the support frame 2, the elastic telescopic rod 146 is fixedly mounted on the bottom of the threaded block 145, and the ring 147 is fixedly mounted on the free end of the elastic telescopic rod 146 to prevent the ropes 4 from being intertwined or entangled during the winding process, resulting in entanglement between the ropes 4, affecting normal winding and use.

[0034] A fixing rod 148 is fixedly installed on the inner wall of the ring 147, and a roller 149 is rotatably installed on the surface of the fixing rod 148. The roller 149 contacts the surface of the rope 4 to prevent the rope 4 from contacting the ring 147 for a long time, causing wear to the rope 4, reducing its service life, and causing failures during the detection process.

[0035] When the embodiment is working, when the lifting device 3 lifts the cargo, the weight of the cargo will straighten the rope 4, and the straightened rope 4 will drive the pulley 10 to move upward, and the upward movement of the pulley 10 will drive the fixing block 9 to move upward, and the upward movement of the fixing block 9 will drive the connecting rod 8 to move upward, and the upward movement of the connecting rod 8 will pull the torque detection plate 7 to move upward, and the final crane lifting torque is finally obtained by combining the data through the rising height of the torque detection plate 7 and the crane arm. The detection efficiency is high and the speed is fast, and it will not be affected by external factors, resulting in data errors when detecting the torque. Inaccurate, affecting the accuracy of detection. At the same time, when the fixed block 9 moves upward, it will drive the hollow column 11 to move upward. The upward movement of the hollow column 11 will cause the hollow rod 12 to squeeze the liquid inside the hollow column 11. The liquid in the hollow column 11 will enter the hollow rod 12 through the water inlet hole on the surface of the round rod 13 through the squeezing. As the round rod 13 rises, the water inlet hole will gradually become smaller, and the speed of entering the hollow rod 12 will gradually decrease, preventing the rope 4 from being instantly straightened when the heavy object is directly lifted, which will reduce the service life of the rope 4 and may cause damage to the equipment.

[0036] The rope 4 is released or wound by rotating the winding device 5. When the rope 4 needs to be wound, the conveying shaft 141 is driven to rotate by the winding device 5. The conveying shaft 141 rotates, and the belt 142 rotates. The belt 142 rotates, and the transmission wheel 143 rotates. The transmission wheel 143 rotates and the threaded rod 144 rotates. The threaded rod 144 rotates and the threaded block 145 moves toward the direction close to the belt 142. The threaded block 145 moves toward the direction close to the belt 142, which drives the elastic telescopic rod 146 to move toward the direction close to the belt 142. The elastic telescopic rod 146 rotates. 46 moving toward the direction close to the belt 142 will drive the ring 147 to move toward the direction close to the belt 142. The ring 147 slowly moves toward the direction close to the belt 142, so that the rope 4 is evenly wound around the winding device 5 in circles, which prevents the ropes 4 from being intertwined or entangled during the winding process, causing entanglement between the ropes 4 and affecting normal winding and use. At the same time, the rope 4 will contact the roller 149 during the winding or unwinding process, which prevents the rope 4 from contacting the ring 147 for a long time, causing wear on the rope 4, reducing the service life, and causing failures during the detection process.

[0037] See also Figure 1-9On the basis of the above embodiment, in another embodiment of the present invention, a protective device is arranged below the anti-winding device, and the protective device comprises a sliding block 151, a sliding plate 152, a connecting plate 153, a square plate 154, a push plate 155, a brake block 156 and an elastic telescopic plate 157, so that the unwinding speed of the winding device 5 is reduced, and the impact load generated when stopping or starting can be reduced by slowly releasing the rope 4. A groove is provided on the inner wall of the support frame 2, and the sliding block 151 is slidably mounted on the inner wall of the groove, the sliding plate 152 is fixedly mounted on the bottom of the sliding block 151, the connecting plate 153 is fixedly mounted on the surface of the sliding plate 152, the square plate 154 is fixedly mounted on the surface of the connecting plate 153, the push plate 155 is fixedly mounted on the surface of the square plate 154, the brake block 156 is slidably mounted on the bottom of the inner wall of the groove, and the elastic telescopic plate 157 is fixedly mounted on the surface of the brake block 156. By slowly increasing the friction force to decelerate the winding device 5, the deceleration process can be smoother, and the impact force and inertia generated by the sharp deceleration can be reduced, thereby reducing the risk of damage to the goods and equipment and improving the safety of the operation site.

[0038] A brake pad is provided at the free end of the elastic telescopic plate 157, a No. 2 spring is provided between the sliding block 151 and the groove, and the sliding block 151 is reset by the No. 2 spring, a No. 3 spring is provided between the brake block 156 and the groove, and the brake block 156 is reset by the No. 3 spring, and the brake block 156 is provided on both sides of the winding device 5.

[0039] The inner wall of the support frame 2 is provided with an anti-rope breaking device, which includes an L-shaped plate 161, a rotating plate 162, a trapezoidal plate 163, an elastic telescopic connecting plate 164, a limit block 165, a trapezoidal block 166 and a slider 167 to prevent the pressure on the rope 4 from increasing when the cargo is too heavy and continuously reeled in. If the cargo is too heavy, the rope 4 may be subjected to a weight exceeding its rated load, causing damage or breakage of the rope 4. The L-shaped plate 161 is fixedly mounted on the surface of the fixed block 9, the rotating plate 162 is rotatably mounted on the inner wall of the support frame 2, the trapezoidal plate 163 is slidably mounted inside the support frame 2, the elastic telescopic connecting plate 164 is slidably mounted on the surface of the trapezoidal plate 163, the limit block 165 is fixedly mounted on the surface of the trapezoidal plate 163, a slide groove is opened on the surface of the reeling device 5, the slider 167 is slidably mounted on the inner wall of the slide groove, and the trapezoidal block 166 is fixedly mounted on the top of the slider 167 to prevent the elastic telescopic connecting plate 164 from getting stuck on the trapezoidal block 166, affecting the reversal of the reeling device 5.

[0040] A No. 1 torsion spring is arranged between the rotating plate 162 and the support frame 2, and the rotating plate 162 is reset by the No. 1 torsion spring. A No. 4 spring is arranged between the trapezoidal plate 163 and the support frame 2, and the trapezoidal plate 163 is reset by the No. 4 spring. A No. 5 spring is arranged between the slider 167 and the slide groove, and the slider 167 is reset by the No. 5 spring. A clockwork spring is arranged between the elastic telescopic connecting plate 164 and the trapezoidal plate 163, and the elastic telescopic connecting plate 164 is reset by the clockwork spring.

[0041] When the present embodiment is working, when the wire is released, the winding device 5 rotates in the opposite direction, and the reverse rotation of the winding device 5 drives the threaded block 145 to move in the direction away from the belt 142. During the movement of the threaded block 145 in the direction away from the belt 142, the threaded block 145 contacts the sliding block 151, and the threaded block 145 pushes the sliding block 151 to move in the direction away from the threaded rod 144. The movement of the sliding block 151 in the direction away from the threaded rod 144 drives the sliding plate 152 to move in the direction away from the threaded rod 144. The movement of the sliding plate 152 in the direction away from the threaded rod 144 drives the square plate 154 to move in the direction away from the threaded rod 144. The movement of the square plate 154 in the direction away from the threaded rod 144 drives the push plate 155 to move in the direction away from the threaded rod 144. The push plate 155 moves in the direction away from the threaded rod 144 and contacts the brake block 156. The push plate 155 pushes the brake block 156 to move closer to the winding device 5 When the rope 4 is loosened or tightened suddenly, a greater impact force may be generated on the rope 4 and other components of the lifting machinery, which may cause equipment failure or damage. At the same time, when the push plate 155 continues to push the brake block 156 to move in the direction of the winding device 5, the brake block 156 will contact with the winding device 5. By slowly increasing the friction force to decelerate the winding device 5, the deceleration process can be smoother and the impact force and inertia caused by sudden deceleration can be reduced, thereby reducing the risk of damage to goods and equipment and improving the safety of the work site.

[0042] When lifting too heavy goods, the heavy object will directly straighten the rope 4, and the straightened rope 4 will drive the fixed block 9 to rise to the maximum height. The rising of the fixed block 9 will drive the L-shaped plate 161 to rise, and the rising L-shaped plate 161 will contact one end of the rotating plate 162 and rotate upward. The upward rotation of one end of the rotating plate 162 will drive the other end of the rotating plate 162 to rotate downward, and the downward rotation of the other end of the rotating plate 162 will push the trapezoidal plate 163 to slide in the direction of the winding device 5. The sliding of the trapezoidal plate 163 in the direction of the winding device 5 will drive the elastic telescopic connecting plate 164 to move in the direction of the winding device 5. The elastic telescopic connecting plate 164 moves in the direction of the winding device 5 and is stuck in the trapezoidal block 166 to prevent the goods from being too heavy. When the winding is continued, the pressure on the rope 4 will increase If the cargo is too heavy, the rope 4 may bear a weight exceeding its rated load, causing damage or breakage of the rope 4. When the elastic telescopic connecting plate 164 is stuck in the trapezoidal block 166, the elastic telescopic connecting plate 164 will push the trapezoidal block 166 to slide in the direction away from the rotating plate 162. The sliding of the trapezoidal block 166 in the direction away from the rotating plate 162 will drive the slider 167 to slide in the direction away from the rotating plate 162. When the slider 167 moves in the direction away from the rotating plate 162, the winding device 5 stops winding and rotates in the opposite direction. The reverse rotation of the winding device 5 will drive the trapezoidal block 166 to rotate in the opposite direction. The reverse rotation of the trapezoidal block 166 will push the elastic telescopic connecting plate 164 to rotate upward, preventing the elastic telescopic connecting plate 164 from getting stuck in the trapezoidal block 166 and affecting the reversal of the winding device 5.

[0043] 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 continuous detection device for a crane lifting moment, comprising a base (1), characterized in that: It also comprises a continuous detection device, wherein a support frame (2) is rotatably mounted on the top of the base (1), a winding device (5) is fixedly mounted on the surface of the support frame (2), a lifting device (3) is arranged below the support frame (2), a rope (4) is fixedly mounted on the output end of the winding device (5), and the lifting device (3) is arranged on the rope (4); The continuous detection device comprises a hollow box (6); a torque detection plate (7), a connecting rod (8), a fixed block (9), a pulley (10), a hollow column (11), a hollow rod (12) and a round rod (13), wherein the hollow box (6) is fixedly mounted on the inner wall of the support frame (2), the torque detection plate (7) is slidably mounted on the inner wall of the hollow box (6), the connecting rod (8) is fixedly mounted on the top of the torque detection plate (7), the fixed block (9) is fixedly mounted on the top of the connecting rod (8), the pulley (10) is rotatably mounted on the surface of the fixed block (9), the hollow column (11) is fixedly mounted on the top of the fixed block (9), the hollow rod (12) is slidably mounted on the inner wall of the hollow column (11), and the round rod (13) is fixedly mounted on the bottom of the inner wall of the hollow column (11); The support frame (2) is provided with an anti-winding device on its surface for preventing the ropes (4) from being crossed and entangled, a protective device is provided below the anti-winding device, and an anti-rope breaking device is provided on the inner wall of the support frame (2); The pulley (10) is in contact with the surface of the rope (4), a liquid is arranged inside the hollow column (11), a water inlet hole is opened on the surface of the round rod (13), and a No. 1 spring is arranged between the hollow rod (12) and the hollow column (11); The anti-winding device comprises a conveying shaft (141), a belt (142), a transmission wheel (143), a threaded rod (144), a threaded block (145), an elastic telescopic rod (146) and a ring (147); the conveying shaft (141) is fixedly mounted on the output end of the winding device (5); the transmission wheel (143) is rotatably mounted on the surface of the support frame (2); one end of the belt (142) is transmission mounted on the surface of the conveying shaft (141); the other end of the belt (142) is transmission mounted on the surface of the transmission wheel (143); the threaded rod (144) is fixedly mounted on the surface of the transmission wheel (143); the threaded block (145) is threadedly mounted on the surface of the threaded rod (144); the threaded block (145) is slidably mounted on the top of the inner wall of the support frame (2); the elastic telescopic rod (146) is fixedly mounted on the bottom of the threaded block (145); and the ring (147) is fixedly mounted on the free end of the elastic telescopic rod (146); The protection device comprises a sliding block (151), a sliding plate (152), a connecting plate (153), a square plate (154), a push plate (155), a brake block (156) and an elastic telescopic plate (157); a groove is provided on the inner wall of the support frame (2); the sliding block (151) is slidably mounted on the inner wall of the groove; the sliding plate (152) is fixedly mounted on the bottom of the sliding block (151); the connecting plate (153) is fixedly mounted on the surface of the sliding plate (152); the square plate (154) is fixedly mounted on the surface of the connecting plate (153); the push plate (155) is fixedly mounted on the surface of the square plate (154); the brake block (156) is slidably mounted on the bottom of the inner wall of the groove; and the elastic telescopic plate (157) is fixedly mounted on the surface of the brake block (156); A brake pad is provided at the free end of the elastic telescopic plate (157), a No. 2 spring is provided between the sliding block (151) and the groove, a No. 3 spring is provided between the brake block (156) and the groove, and the brake block (156) is provided on both sides of the winding device (5); When the wire is released, the winding device (5) rotates in the reverse direction. The reverse rotation of the winding device (5) drives the threaded block (145) to move in a direction away from the belt (142). The threaded block (145) contacts the sliding block (151) in the process of moving in a direction away from the belt (142). The threaded block (145) pushes the sliding block (151) to move in a direction away from the threaded rod (144). The sliding block (151) moves in a direction away from the threaded rod (144), which drives the sliding plate (152) to move in a direction away from the threaded rod (144). The sliding plate (152) moves in a direction away from the threaded rod (144), which drives the square plate (154) to move in a direction away from the threaded rod (144). ), the square plate (154) moves in a direction away from the threaded rod (144), which drives the push plate (155) to move in a direction away from the threaded rod (144), and the push plate (155) moves in a direction away from the threaded rod (144) and contacts the brake block (156), and the push plate (155) pushes the brake block (156) to move in a direction close to the winding device (5), and the brake block (156) moves in the direction of the winding device (5), which drives the elastic telescopic plate (157) to move in the direction of the winding device (5), and the free end of the elastic telescopic plate (157) moves in the direction of the winding device (5) and contacts the winding device (5), thereby reducing the unwinding speed of the winding device (5).

2. A crane lifting moment continuous detection device according to claim 1, characterized in that: A fixing rod (148) is fixedly mounted on the inner wall of the circular ring (147), a roller (149) is rotatably mounted on the surface of the fixing rod (148), and the roller (149) is in contact with the surface of the rope (4).

3. A crane lifting moment continuous detection device according to claim 1, characterized in that: The anti-rope breaking device comprises an L-shaped plate (161), a rotating plate (162), a trapezoidal plate (163), an elastic telescopic connecting plate (164), a limiting block (165), a trapezoidal block (166) and a sliding block (167); the L-shaped plate (161) is fixedly mounted on the surface of the fixed block (9); the rotating plate (162) is rotatably mounted on the inner wall of the support frame (2); the trapezoidal plate (163) is slidably mounted inside the support frame (2); the elastic telescopic connecting plate (164) is slidably mounted on the surface of the trapezoidal plate (163); the limiting block (165) is fixedly mounted on the surface of the trapezoidal plate (163); a sliding groove is provided on the surface of the winding device (5); the sliding block (167) is slidably mounted on the inner wall of the sliding groove; and the trapezoidal block (166) is fixedly mounted on the top of the sliding block (167).

4. A crane lifting moment continuous detection device according to claim 3, characterized in that: A No. 1 torsion spring is provided between the rotating plate (162) and the support frame (2), a No. 4 spring is provided between the trapezoidal plate (163) and the support frame (2), a No. 5 spring is provided between the slider (167) and the slide groove, and a spring spring is provided between the elastic telescopic connecting plate (164) and the trapezoidal plate (163).

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