Cuff-type safety redundant brake

Abstract

The present application belongs to the technical field of hoist, especially a hoop type safety redundant brake, aiming at the problem of excessive friction, aggravating wear and tear and heat affecting structural performance, the present application proposes the following scheme, which comprises a hoist shell and a winding drum rotatably connected inside the hoist shell, half ratchet rings are bolted to the top and bottom of the winding drum, a wave-shaped wheel is bolted to the right side of the half ratchet rings, a rotating shaft is bolted to the right side of the hoist shell, a frame is rotatably connected to the surface of the rotating shaft, a tension spring is bolted to the right side of the surface of the rotating shaft, the tension spring is bolted to the frame, and a pawl is bolted to the top of the frame; a rotating wheel is rotatably connected to the bottom end of the right side of the frame, the rotating wheel can drive the transmission mechanism to rotate through the main bevel gear, and the transmission mechanism can drive the micro pump to operate through the small helical gear. In the present application, the micro pump can pump lubricating oil for lubrication, reducing structural friction, and the heat dissipation mechanism can blow air for heat dissipation, avoiding heat accumulation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoist, and particularly relates to a hoop type safety redundant brake. BACKGROUND

[0002] A patent with the application number 202010999794.2 discloses a double-brake structure of a European style steel wire rope electric hoist lifting drive, which comprises a reduction box, a brake motor, a first brake and a second brake. The brake motor is coupled to the left end of the reduction box. A pinion shaft is arranged in the reduction box. The second brake is fixedly installed on the other end of the reduction box through a flange plate, and is connected with the pinion shaft. The first brake is connected to the motor shaft of the brake motor. The double-brake structure has the advantages that two brakes are used in the whole lifting drive unit, so that even if one brake fails, the safety hazard of heavy object falling does not occur, the safety performance of the whole structure is greatly improved, the required brake torque of each brake is reduced, the friction work of each brake to be overcome during the brake closing process is reduced, the impact on the motor is reduced, and the service life of the motor and the brake is improved.

[0003] However, the double-brake structure of the European style steel wire rope electric hoist lifting drive also has some problems. For example, during daily use, the transmission of parts is prone to generate large friction, which reduces the precision of the parts, affects the transmission of the structure, reduces the service life of the structure, and a large amount of heat is accumulated in the structure, which affects the performance of the parts and easily causes the structure to malfunction due to overheating. SUMMARY

[0004] Based on the technical problems of excessive friction, aggravated wear and tear, and heat affecting the performance of the structure in the background art, the present application provides a hoop type safety redundant brake. In the present application, a micro pump can pump lubricating oil for lubrication, reduce the friction of the structure, and the heat dissipation mechanism can blow air and dissipate heat to avoid heat accumulation.

[0005] The hoop type safety redundant brake provided by the present application comprises a hoist shell and a winding drum rotatably sleeved in the hoist shell. Half ratchet rings are bolted to the top and bottom of the winding drum. The two half ratchet rings are bolted together. A wave wheel is bolted to the right side of the half ratchet ring. A rotating shaft is bolted to the right side of the hoist shell. A frame is rotatably sleeved on the surface of the rotating shaft. A tension spring is bolted to the right side of the surface of the rotating shaft. The tension spring is bolted to the frame. A pawl is bolted to the top of the frame.

[0006] The bottom end of the right side of the frame is rotationally connected with a rotating wheel, the shaft center of the left side of the rotating wheel is bolted with a main bevel gear, the top end inside the frame is bolted with a micro pump, the shaft of the micro pump is bolted with a small helical gear, the teeth of the main bevel gear are meshed with a transmission mechanism, the transmission mechanism is meshed with the small helical gear, the surface of the transmission mechanism is rotationally sleeved with a heat dissipation mechanism, the rotating wheel can drive the transmission mechanism to rotate through the main bevel gear, the transmission mechanism can drive the micro pump to operate through the small helical gear, the micro pump can pump lubricating oil for lubrication, reduce structural friction, and the heat dissipation mechanism can blow wind to dissipate heat and avoid heat accumulation.

[0007] Preferably, the transmission mechanism comprises a secondary bevel gear, a rotating rod, a large sprocket and an acceleration assembly.

[0008] The teeth of the main bevel gear are meshed with the teeth of the secondary bevel gear, the shaft center of the secondary bevel gear is bolted with the bottom end of the rotating rod, the surface of the rotating rod is rotationally sleeved with the inside of the frame, the top end of the rotating rod is bolted with the shaft center of the large sprocket, the large sprocket is meshed with the acceleration assembly, the acceleration assembly is meshed with the small helical gear, the main bevel gear can drive the secondary bevel gear to rotate, the size of the main bevel gear is larger than that of the secondary bevel gear, so that an acceleration effect is generated to enable the secondary bevel gear to rotate quickly, the secondary bevel gear can drive the rotating rod to rotate, the rotating rod is rotationally arranged with the frame through a bearing, so that the stability of the rotating rod in rotation is ensured and vibration generated in the rotating process of the rotating rod is reduced, and the rotating rod can drive the large sprocket to rotate.

[0009] Preferably, the acceleration assembly comprises a chain, a small sprocket, a large gear and a transmission assembly.

[0010] The teeth of the large sprocket are meshed with the right side inside the chain, the left side inside the chain is meshed with the teeth of the small sprocket, the bottom of the small sprocket is bolted with the top of the large gear, the shaft center of the large gear is rotationally connected with the inside of the frame, the large gear is meshed with the transmission assembly, and the transmission assembly is meshed with the small helical gear.

[0011] Preferably, the acceleration assembly comprises a chain, a small sprocket, a large gear and a transmission assembly.

[0012] The teeth of the large sprocket are meshed with the right side inside the chain, the left side inside the chain is meshed with the teeth of the small sprocket, the bottom of the small sprocket is bolted with the top of the large gear, the shaft center of the large gear is rotationally connected with the inside of the frame, the large gear is meshed with the transmission assembly, and the transmission assembly is meshed with the small helical gear, the large sprocket can drive the chain to rotate, the chain can drive the small sprocket to rotate, the size of the large sprocket is larger than that of the small sprocket, so that the small sprocket can rotate quickly, an acceleration effect is generated, the small sprocket can drive the large gear to rotate, and the large gear is rotationally arranged with the frame through a bearing, so that the stability of the large gear in rotation is ensured, and the large gear can drive the transmission assembly to rotate.

[0013] Preferably, the transmission assembly comprises a small gear, a crankshaft and a large helical gear.

[0014] The left side of the large gear is engaged with the right side of the small gear, the axis of the small gear is connected with the bottom end of the surface of the crankshaft, the top end and the bottom end of the crankshaft are rotatably sleeved with the inner part of the frame, the top end of the surface of the crankshaft is connected with the axis of the large helical gear, the teeth of the large helical gear are engaged with the left side of the small helical gear, the crankshaft is rotatably sleeved with the heat dissipation mechanism, the large gear can drive the small gear to rotate, the size of the large gear is larger than that of the small gear, the rotating speed of the small gear is increased, the acceleration effect is generated, the small gear can drive the crankshaft to rotate, the crankshaft is rotatably arranged with the frame through the bearing, the stability of the rotation of the crankshaft is ensured, the crankshaft can drive the large helical gear to rotate, and the large helical gear can drive the small helical gear to rotate.

[0015] Preferably, the heat dissipation mechanism comprises a transmission frame, a transmission bar, a hinged frame and a fan plate.

[0016] The number of the transmission frame, the transmission bar, the hinged frame and the fan plate is two, the left end of the transmission frame is rotatably sleeved with the curved part of the crankshaft, the right end of the transmission frame is hinged with the left side of the transmission bar, the right side of the surface of the transmission bar is hinged with the left end of the hinged frame, the right end of the hinged frame is hinged with the left side of the fan plate, the hole of the fan plate is hinged with the inner part of the frame, the crankshaft can drive the transmission frame to move left and right, the transmission frame is rotatably arranged with the crankshaft through the bearing, the stability of the rotation of the transmission frame is ensured and the friction is reduced, the transmission frame can drive the transmission bar to move left and right, the transmission bar can drive the hinged frame to move left and right, the hinged frame can drive the fan plate to rotate, the rotating fan plate can blow air, drive the air in the frame to flow and dissipate heat.

[0017] Preferably, the rear side of the transmission bar is slidably connected with a limiting frame, the rear side of the limiting frame is connected with the inner part of the frame, the two transmission bars are respectively located at the top and the bottom of the rotating shaft, the transmission bar is slidably arranged with the limiting frame through the slide rail, the transmission bar is guided, the left and right movement of the transmission bar is facilitated, and the state of the transmission bar is convenient for generating air flow.

[0018] Preferably, the surface and the inner part of the frame are connected with oil injection nozzles, the liquid inlet end of the oil injection nozzle is communicated with an oil delivery pipe, the end of the oil delivery pipe away from the oil injection nozzle is communicated with the liquid outlet end of a micro pump, the oil extraction end of the micro pump is communicated with the oil tank of lubricating oil, the lubricating oil is conveniently extracted, introduced into the oil delivery pipe and pumped into the oil injection nozzle, and the oil injection nozzle is lubricated by oil injection.

[0019] Preferably, the inner circle of the half ratchet ring is connected with a friction belt, the inner side of the friction belt is in contact with the surface of the winding drum, the surface roughness of the winding drum in contact with the friction belt is 12.5, and the friction belt is used to stabilize the winding drum and the half ratchet ring.

[0020] The right side of the rotating wheel is slidably connected with the left side of the wave-shaped wheel, the bottom of the frame is provided with a notch, the notch of the frame corresponds to the front side of the half ratchet ring, the wave-shaped wheel is composed of two half wave-shaped rings, the tension spring is adjusted so that the rotating wheel is always pressed on the wave-shaped wheel and rotates, and the pressing force is properly adjusted, the notch is used for the rotation of the half ratchet ring, and contact between the half ratchet ring and the frame is avoided.

[0021] The rotating wheel can drive the transmission mechanism to rotate through the main bevel gear, the transmission mechanism can drive the micro pump to operate through the small bevel gear, the micro pump can pump lubricating oil for lubrication, structure friction is reduced, and the heat dissipation mechanism can blow wind and dissipate heat, so that heat accumulation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The whole right view structural schematic diagram of the hoop type safety redundant brake is provided in the application;

[0023] Figure 2 The frame front view structural schematic diagram of the hoop type safety redundant brake is provided in the application;

[0024] Figure 3 The transmission mechanism structural schematic diagram of the hoop type safety redundant brake is provided in the application;

[0025] Figure 4 The chain three-dimensional structural schematic diagram of the hoop type safety redundant brake is provided in the application;

[0026] Figure 5 The crankshaft three-dimensional structural schematic diagram of the hoop type safety redundant brake is provided in the application.

[0027] In the figure: 1, calabash shell; 2, transmission mechanism; 21, auxiliary bevel gear; 22, rotating rod; 23, large chain wheel; 24, chain; 25, small chain wheel; 26, large gear; 27, small gear; 28, crankshaft; 29, large bevel gear; 3, heat dissipation mechanism; 31, transmission frame; 32, transmission bar; 33, hinged frame; 34, fan plate; 4, winding drum; 5, half ratchet ring; 6, wave-shaped wheel; 7, friction belt; 8, rotating shaft; 9, frame; 10, ratchet pawl; 11, tension spring; 12, small bevel gear; 13, micro pump; 14, oil injection nozzle; 15, main bevel gear; 16, rotating wheel. EMBODIMENT

[0028] The application will be further described below in combination with specific embodiments. EMBODIMENT

[0029] REFERENCE Figures 1-5The embodiment provides a hoop type safety redundant brake, which comprises a gourd shell 1, a winding drum 4 rotatably sleeved in the gourd shell 1, half ratchet rings 5 bolted to the top and bottom of the winding drum 4, a wave wheel 6 bolted to the right side of the half ratchet rings 5, a rotating shaft 8 bolted to the right side of the gourd shell 1 and located in front of the half ratchet rings 5, a frame 9 rotatably sleeved on the surface of the rotating shaft 8, a tension spring 11 bolted to the right side of the surface of the rotating shaft 8, one end of the tension spring 11 away from the rotating shaft 8 bolted to the inside of the frame 9, a pawl 10 bolted to the top of the frame 9, a rotating wheel 16 rotatably connected to the bottom end of the right side of the frame 9, a main bevel gear 15 extending to the inside of the frame 9 and bolted to the left side of the shaft of the rotating wheel 16, a micro pump 13 bolted to the top end in the inside of the frame 9, a small helical gear 12 bolted to the shaft of the micro pump 13, a transmission mechanism 2 meshing with the teeth of the main bevel gear 15, the transmission mechanism 2 meshing with the small helical gear 12, a heat dissipation mechanism 3 rotatably sleeved on the surface of the transmission mechanism 2, the transmission mechanism 2 comprising a secondary bevel gear 21, a rotating rod 22, a large chain wheel 23 and an acceleration assembly, the teeth of the main bevel gear 15 meshing with the teeth of the secondary bevel gear 21, the bottom end of the rotating rod 22 bolted to the shaft center of the secondary bevel gear 21, the surface of the rotating rod 22 rotatably sleeved in the inside of the frame 9, the top end of the rotating rod 22 bolted to the shaft center of the large chain wheel 23, the large chain wheel 23 meshing with the acceleration assembly, the acceleration assembly meshing with the small helical gear 12, the main bevel gear 15 capable of driving the secondary bevel gear 21 to rotate, the size of the main bevel gear 15 being greater than that of the secondary bevel gear 21, so that the secondary bevel gear 21 can rotate rapidly, the secondary bevel gear 21 capable of driving the rotating rod 22 to rotate, the rotating rod 22 rotatably arranged in the frame 9 by bearings, so that the stability of the rotating rod 22 is ensured and vibration generated in the rotating process of the rotating rod 22 is reduced, the rotating rod 22 capable of driving the large chain wheel 23 to rotate, the large chain wheel 23 capable of driving the acceleration assembly to rotate, the acceleration assembly capable of driving the small helical gear 12 to rotate, the acceleration assembly comprising a chain 24, a small chain wheel 25, a large gear 26 and a transmission assembly, the teeth of the large chain wheel 23 meshing with the right side in the inside of the chain 24, the left side in the inside of the chain 24 meshing with the teeth of the small chain wheel 25, the bottom of the small chain wheel 25 bolted to the top of the large gear 26, the shaft center of the large gear 26 rotatably connected to the inside of the frame 9, the large gear 26 meshing with the transmission assembly, the transmission assembly meshing with the small helical gear 12, the large chain wheel 23 capable of driving the chain 24 to rotate, the chain 24 capable of driving the small chain wheel 25 to rotate, the size of the large chain wheel 23 being greater than that of the small chain wheel 25, so that the small chain wheel 25 can rotate rapidly and an acceleration effect is generated, the small chain wheel 25 capable of driving the large gear 26 to rotate, the large gear 26 rotatably arranged in the frame 9 by bearings, so that the stability of the large gear 26 is ensured, the large gear 26 capable of driving the transmission assembly to rotate, the transmission assembly capable of driving the small helical gear 12 to rotate, the transmission assembly comprising a small gear 27, a crankshaft 28 and a large helical gear 29.The left side of the large gear 26 is engaged with the right side of the small gear 27, the shaft center of the small gear 27 is bolted with the bottom end of the surface of the crankshaft 28, the top end and the bottom end of the crankshaft 28 are rotatably sleeved with the inside of the frame 9, the top end of the surface of the crankshaft 28 is bolted with the shaft center of the large helical gear 29, the gear teeth of the large helical gear 29 are engaged with the left side of the small helical gear 12, the crankshaft 28 is rotatably sleeved with the heat dissipation mechanism 3, the large gear 26 can drive the small gear 27 to rotate, the size of the large gear 26 is larger than that of the small gear 27, the rotating speed of the small gear 27 is increased, the acceleration effect is generated, the small gear 27 can drive the crankshaft 28 to rotate, the crankshaft 28 is rotatably arranged with the frame 9 through a bearing, the stability of the rotation of the crankshaft 28 is ensured, the crankshaft 28 can drive the large helical gear 29 to rotate, the large helical gear 29 can drive the small helical gear 12 to rotate, the crankshaft 28 can drive the heat dissipation mechanism 3 to rotate, the heat dissipation mechanism 3 comprises a transmission frame 31, a transmission strip 32, a hinged frame 33 and a fan plate 34.The number of transmission frames 31, transmission bars 32, hinged frames 33 and fan plates 34 is two, the left end of the transmission frame 31 is rotatably connected with the crankshaft 28, the right end of the transmission frame 31 is hingedly connected with the left side of the transmission bar 32, the right side of the surface of the transmission bar 32 is hingedly connected with the left end of the hinged frame 33, the right end of the hinged frame 33 is hingedly connected with the left side of the fan plate 34, the hole of the fan plate 34 is hingedly connected with the inside of the frame 9, the crankshaft 28 can drive the transmission frame 31 to move left and right, the transmission frame 31 is rotatably arranged with the crankshaft 28 through a bearing, which ensures the stability of the rotation of the transmission frame 31 and reduces friction, the transmission frame 31 can drive the transmission bar 32 to move left and right, the transmission bar 32 can drive the hinged frame 33 to move left and right, the hinged frame 33 can drive the fan plate 34 to rotate, the rotating fan plate 34 can fan, drive the air flow in the frame 9, and heat dissipation, the rear side of the transmission bar 32 is slidingly connected with a limiting frame, the rear side of the limiting frame is bolted with the inside of the frame 9, the two transmission bars 32 are respectively located at the top and bottom of the rotating shaft 8, the transmission bar 32 is slidingly arranged with the limiting frame through a slide rail, which guides the transmission bar 32 and facilitates the left and right movement of the transmission bar 32, the state of the transmission bar 32 facilitates the generation of air flow, the fan plate 34 comprises a fan panel and a connecting frame, the right side of the connecting frame is bolted with the left side of the fan panel, the rear side of the connecting frame is hingedly connected with the inside of the frame 9, the connecting frame is hingedly connected with the hinged frame 33, the hinged frame 33 can drive the connecting frame to rotate, the connecting frame is rotatably arranged with the frame 9 through a bearing, which ensures the stability of the rotation of the connecting frame, the connecting frame can drive the fan panel to rotate, the fan panel and the connecting frame are in L-shaped structure, the surface and the inside of the frame 9 are bolted with oil nozzles 14, the inlet end of the oil nozzle 14 is communicated with an oil delivery pipe, the end of the oil delivery pipe away from the oil nozzle 14 is communicated with the outlet end of the micro pump 13, the oil suction end of the micro pump 13 is communicated with the oil tank of lubricating oil, which facilitates the extraction of lubricating oil and the introduction of lubricating oil into the oil delivery pipe and the pump into the oil nozzle 14, the oil nozzle 14 sprays oil for lubrication, the inner circle of the half ratchet ring 5 is bolted with a friction belt 7, the inner side of the friction belt 7 is in contact with the surface of the winding drum 4, the surface roughness of the winding drum 4 in contact with the friction belt 7 is 12.5, the friction belt 7 is used to stabilize between the winding drum 4 and the half ratchet ring 5, the right side of the rotating wheel 16 is slidingly connected with the left side of the wave wheel 6, the bottom of the frame 9 is provided with a notch, the notch of the frame 9 corresponds to the front side of the half ratchet ring 5, the wave wheel 6 is composed of two half wave rings, the adjusting tension spring 11 makes the rotating wheel 16 always press tightly on the wave wheel 6 and rotate, and the adjusting pressure is appropriate, the notch is used for the rotation of the half ratchet ring 5 to avoid the contact between the half ratchet ring 5 and the frame 9, the rotating wheel 16 can drive the transmission mechanism 2 to rotate through the main bevel gear 15, the transmission mechanism 2 can drive the micro pump 13 to operate through the small bevel gear 12, the micro pump 13 can pump lubricating oil for lubrication, reduce structural friction, and the heat dissipation mechanism 3 can be used to fan and heat dissipation to avoid heat accumulation.

[0030] Working principle: the winding drum 4 rotates during the process of driving the half ratchet ring 5, the wave wheel 6 and the friction belt 7 to rotate, the rotating wave wheel 6 drives the rotating wheel 16 to rotate by its structure, adjusts the tension spring 11, so that the rotating wheel 16 is always pressed on the wave wheel 6 and rotates, and the pressure is properly adjusted, the rotating wave wheel 6, when the rotating wheel 16 rotates to the top of the wave wheel 6, the pawl 10 can just leave the half ratchet ring 5 and ensure a three-millimeter gap, the rotating wheel 16 drives the main bevel gear 15 to rotate, the main bevel gear 15 can drive the auxiliary bevel gear 21 to rotate, the size of the main bevel gear 15 is larger than that of the auxiliary bevel gear 21, so that the auxiliary bevel gear 21 can rotate quickly, the auxiliary bevel gear 21 can drive the rotating rod 22 to rotate, the rotating rod 22 is rotatably arranged on the frame 9 through the bearing, so as to ensure the stability of the rotating rod 22 and reduce the vibration generated during the rotation of the rotating rod 22, the rotating rod 22 can drive the large chain wheel 23 to rotate, the large chain wheel 23 can drive the chain 24 to rotate, the chain 24 can drive the small chain wheel 25 to rotate, the size of the large chain wheel 23 is larger than that of the small chain wheel 25, so that the small chain wheel 25 can rotate quickly, and the acceleration effect is generated, the small chain wheel 25 can drive the large gear 26 to rotate, the large gear 26 is rotatably arranged on the frame 9 through the bearing, so as to ensure the stability of the large gear 26, the large gear 26 can drive the small gear 27 to rotate, the size of the large gear 26 is larger than that of the small gear 27, so as to increase the rotating speed of the small gear 27 and generate the acceleration effect, the small gear 27 can drive the crankshaft 28 to rotate, the crankshaft 28 is rotatably arranged on the frame 9 through the bearing, so as to ensure the stability of the crankshaft 28, the crankshaft 28 can drive the large helical gear 29 to rotate, the large helical gear 29 can drive the small helical gear 12 to rotate, and the bottom of the small helical gear 12 is tilted forward, so that the large helical gear 29 can be engaged with the small helical gear 12, and the size of the large helical gear 29 is larger than that of the small helical gear 12, so as to generate the acceleration effect, the small helical gear 12 can drive the micro pump 13 to rotate, the oil extraction end of the micro pump 13 is connected with the lubricating oil tank, so as to extract the lubricating oil, the lubricating oil is pumped into the oil nozzle 14 through the oil pipe, the oil nozzle 14 is aligned with the rotating wheel 16 and the internal parts of the frame 9, so as to spray and lubricate, the crankshaft 28 can drive the transmission frame 31 to move left and right, the transmission frame 31 is rotatably arranged on the crankshaft 28 through the bearing, so as to ensure the stability of the transmission frame 31 and reduce the friction, the transmission frame 31 can drive the transmission bar 32 to move left and right, the transmission bar 32 can drive the hinged frame 33 to move left and right, the hinged frame 33 can drive the fan blade 34 to rotate, the rotating fan blade 34 can fan, so as to drive the air in the frame 9 to flow and dissipate heat.

[0031] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A safety redundant brake of the hoop type comprising a gipsy housing (1) and a winding drum (4) rotatably coupled inside the gipsy housing (1), characterized in that, The top and bottom of the winding drum (4) are bolted with half ratchet ring (5), two half ratchet ring (5) are bolted between, the right side of half ratchet ring (5) is bolted with wave wheel (6), the right side of gourd shell (1) is bolted with rotating shaft (8), the surface of rotating shaft (8) is rotatably sleeved with frame (9), the right side of the surface of rotating shaft (8) is bolted with tension spring (11), tension spring (11) is bolted with frame (9), the top of frame (9) is bolted with ratchet pawl (10); The bottom end of the right side of frame (9) is rotatably connected with rotating wheel (16), the shaft center of the left side of rotating wheel (16) is bolted with main bevel gear (15), the top end in frame (9) is bolted with micro pump (13), the shaft of micro pump (13) is bolted with small helical gear (12), the teeth of main bevel gear (15) are meshed with transmission mechanism (2), transmission mechanism (2) is meshed with small helical gear (12), the surface of transmission mechanism (2) is rotatably sleeved with heat dissipation mechanism (3); The transmission mechanism (2) comprises a vice bevel gear (21), a rotating rod (22), a large chain wheel (23) and an acceleration assembly; The teeth of main bevel gear (15) are meshed with the teeth of vice bevel gear (21), the shaft center of vice bevel gear (21) is bolted with the bottom end of rotating rod (22), the surface of rotating rod (22) is rotatably sleeved with the inside of frame (9), the top end of rotating rod (22) is bolted with the shaft center of large chain wheel (23), large chain wheel (23) is meshed with acceleration assembly, and acceleration assembly is meshed with small helical gear (12); The acceleration assembly comprises a chain (24), a small chain wheel (25), a large gear (26) and a transmission assembly; The teeth of large chain wheel (23) are meshed with the right side in the inside of chain (24), the left side in the inside of chain (24) is meshed with the teeth of small chain wheel (25), the bottom of small chain wheel (25) is bolted with the top of large gear (26), the shaft center of large gear (26) is rotatably connected with the inside of frame (9), large gear (26) is meshed with transmission assembly, and transmission assembly is meshed with small helical gear (12); The transmission assembly comprises a small gear (27), a crankshaft (28) and a large helical gear (29); The left side of large gear (26) is meshed with the right side of small gear (27), the shaft center of small gear (27) is bolted with the bottom end of the surface of crankshaft (28), the top end and the bottom end of crankshaft (28) are rotatably sleeved with the inside of frame (9), the top end of the surface of crankshaft (28) is bolted with the shaft center of large helical gear (29), the teeth of large helical gear (29) are meshed with the left side of small helical gear (12), and crankshaft (28) is rotatably sleeved with heat dissipation mechanism (3); The heat dissipation mechanism (3) comprises a transmission frame (31), a transmission bar (32), a hinged frame (33) and a fan plate (34); The transmission frame (31), the transmission bar (32), the hinged frame (33) and the fan plate (34) are two in number, the left end of the transmission frame (31) is rotatably sleeved with the crank (28), the right end of the transmission frame (31) is hinged with the left side of the transmission bar (32), the right side of the surface of the transmission bar (32) is hinged with the left end of the hinged frame (33), the right end of the hinged frame (33) is hinged with the left side of the fan plate (34), and the hole of the fan plate (34) is hinged with the inside of the frame (9).

2. The hoop-type safety redundancy brake of claim 1, wherein, The rear side of the transmission bar (32) is slidingly connected with a limiting frame, the rear side of the limiting frame is bolted with the inside of the frame (9), and the two transmission bars (32) are located at the top and bottom of the rotating shaft (8) respectively.

3. The hoop-type safety redundancy brake of claim 1, wherein, The fan plate (34) comprises a fan panel and a connecting frame, the right side of the connecting frame is bolted with the left side of the fan panel, the rear side of the connecting frame is hinged with the inside of the frame (9), and the connecting frame is hinged with the hinged frame (33).

4. The hoop-type safety redundancy brake of claim 1, wherein, The surface and the inside of the frame (9) are bolted with oil injection nozzles (14), the liquid inlet end of the oil injection nozzle (14) is communicated with an oil conveying pipe, and the end of the oil conveying pipe away from the oil injection nozzle (14) is communicated with the liquid outlet end of the micro pump (13).

5. The hoop-style safety redundancy brake of claim 1, wherein, The inner circle of the half-ratchet ring (5) is bolted with a friction belt (7), the inner side of the friction belt (7) is in contact with the surface of the winding drum (4), and the surface roughness of the winding drum (4) in contact with the friction belt (7) is 12.

5.

6. The hoop-style safety redundancy brake of claim 1, wherein, The right side of the rotating wheel (16) is slidingly connected with the left side of the wave wheel (6), the bottom of the frame (9) is provided with a recess, the recess of the frame (9) corresponds to the front side of the half-ratchet ring (5), and the wave wheel (6) is composed of two half-wave rings.

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