Electrically controlled bidirectional brake pay-off trolley

Abstract

The present application relates to the technical field of electric power construction tools, and particularly relates to an electrically-controlled bidirectional braking pay-off trolley, which comprises a pay-off trolley main body, an electrically-controlled forward overspeed braking assembly and an electrically-controlled reverse overspeed braking assembly, an overspeed braking assembly is internally provided with a braking module and a reset assembly, the braking module is connected with the reset assembly, and the braking module realizes forward and / or reverse braking through clamping cables; the overspeed braking assembly is integrally provided with a laser speed measurement sensor and a pressure feedback module, the reset assembly receives a signal of the laser speed measurement sensor to trigger braking operation of the braking module, and the pressure feedback module is arranged on the braking module and is in contact with the cables during braking; the bidirectional braking assembly solves the risk of one-way braking failure of a traditional trolley; the laser speed measurement sensor monitors the speed of the cables in real time, when the speed of the cables exceeds a set threshold value, a signal is immediately transmitted to the reset assembly to trigger braking of the braking module, the response accuracy is improved, and the problem of response lag during braking after the cables are out of control is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power construction tools, in particular to an electric control bidirectional braking pay-off trolley. BACKGROUND

[0002] In the construction of power transmission lines, the pay-off trolley is the core device of the tension stringing, and its safety is directly related to the safety of the operating personnel and equipment. In the prior art, the pay-off trolley mainly realizes cable guiding through a pulley block, but under abnormal working conditions such as broken traction rope, hoist failure or operation error, the cable may slide forward at high speed or retract reversely due to inertia, resulting in cable falling, equipment damage and even personnel injury. The existing solutions mostly use mechanical unidirectional braking devices, such as driving a brake block to clamp the cable by gravity or spring force, but such solutions rely on mechanical transmission relationship control and have the problem of response lag. Mechanical braking relies on physical contact triggering and is difficult to respond to overspeed or reverse motion within milliseconds. SUMMARY

[0003] The present application discloses an electric control bidirectional braking pay-off trolley to solve the technical problem of mechanical reaction lag when braking the cable in the existing pay-off trolley with braking function in the related art.

[0004] To solve the above problems, the present application adopts the following technical solutions:

[0005] The present application provides an electric control bidirectional braking pay-off trolley, which comprises a pay-off trolley main body, an electric control forward overspeed braking assembly arranged on one side of the pay-off trolley main body along the cable direction, and an electric control reverse overspeed braking assembly arranged on the other side of the pay-off trolley main body along the cable direction. The electric control forward overspeed braking assembly and the electric control reverse overspeed braking assembly each comprise a braking module, which realizes forward and / or reverse braking of the cable by clamping the cable; a reset assembly connected with the braking module; a laser speed sensor, which triggers the braking operation of the braking module by sending a signal to the reset assembly; and a pressure feedback module, which is arranged on the braking module and contacts the cable when braking.

[0006] Preferably, the electric control forward overspeed braking assembly and the electric control reverse overspeed braking assembly further comprise a wireless communication module, and the laser speed sensor and the pressure feedback module are electrically connected with the wireless communication module and transmit data of the laser speed sensor and the pressure feedback module to a remote monitoring terminal through the wireless communication module.

[0007] Preferably, the electrically controlled forward overspeed brake assembly and the electrically controlled reverse overspeed brake assembly respectively comprise detachable upper and lower assemblies, the brake module comprises upper and lower brake sliders respectively arranged in the upper and lower assemblies, the upper and lower assemblies are respectively provided with upper and lower slide rails, the distance between the upper and lower slide rails gradually decreases in a direction away from the cable laying trolley body, the upper and lower brake sliders are respectively slidably arranged on the upper and lower slide rails, and the cable is located between the upper and lower brake sliders.

[0008] Preferably, the cable laying trolley body is provided with a fixed triangular plate, opposite ends of the fixed triangular plate are respectively provided with pluggable fixed ear seats to connect the electrically controlled forward overspeed brake assembly and the electrically controlled reverse overspeed brake assembly.

[0009] Preferably, the upper assembly is further provided with a reset coil spring connected with the upper brake slider, and the reset coil spring is in a stretched state when braking.

[0010] Preferably, the lower assembly is further provided with a coil spring set, the lower brake slider is provided with a connecting plate, and the coil spring set is connected with the connecting plate, and the coil spring set is in a stretched state when the electrically controlled bidirectional brake cable laying trolley is in an initial state.

[0011] Preferably, the lower assembly is provided with the reset assembly, the reset assembly comprises an electrically controlled ratchet assembly and a traction rope, the electrically controlled ratchet assembly comprises a driving motor and a ratchet mechanism, the ratchet mechanism comprises a pawl and a ratchet, the driving motor controls the pawl, the driving motor is electrically connected with the laser speed sensor, the electrically controlled ratchet assembly is coaxially connected with a roller, one end of the traction rope is wound around the roller, and the other end of the traction rope is connected with the connecting plate.

[0012] Preferably, the electrically controlled ratchet assembly is further provided with a safety interlock device and a position detection sensor, the safety interlock device is electrically connected with the position detection sensor, the safety interlock device receives the position detection sensor signal to control the driving motor, and the trolley is prohibited from entering a next working cycle when it is detected that the lower brake slider is not completely reset.

[0013] Preferably, the lower assembly is further provided with a synchronous push plate, the synchronous push plate is fixedly connected with the lower brake slider, and a protruding plate is arranged on a side of the upper brake slider close to the lower assembly, when braking, the lower brake slider drives the synchronous push plate to move, the synchronous push plate abuts against the protruding plate and drives the upper brake slider to move, and the upper and lower brake sliders are cooperatively clamped through mechanical linkage.

[0014] Preferably, a protective cover is arranged outside the electrically-controlled forward overspeed brake assembly and the electrically-controlled reverse overspeed brake assembly.

[0015] The technical scheme adopted by the application can achieve the following beneficial effects:

[0016] 1. The application provides an electrically-controlled bidirectional brake pay-off trolley, which comprises a pay-off trolley main body, an electrically-controlled forward overspeed brake assembly and an electrically-controlled reverse overspeed brake assembly, wherein the electrically-controlled forward overspeed brake assembly and the electrically-controlled reverse overspeed brake assembly are arranged on opposite sides of the pay-off trolley main body along the direction of a cable; the electrically-controlled forward overspeed brake assembly and the electrically-controlled reverse overspeed brake assembly are both provided with a brake module and a reset assembly, the brake module is connected to the reset assembly, the brake module realizes forward and / or reverse braking by clamping the cable, the electrically-controlled forward overspeed brake assembly and the electrically-controlled reverse overspeed brake assembly are both provided with a laser speed sensor and a pressure feedback module, the reset assembly receives the signal of the laser speed sensor to realize the braking operation of the brake module, and the pressure feedback module is arranged on the brake module and is in contact with the cable when braking is realized; this scheme can realize intelligent overspeed protection in the bidirectional movement of the cable, solve the risk of single-directional braking failure of a traditional trolley by using the symmetrically arranged bidirectional brake assembly, the laser speed sensor realizes real-time monitoring of the speed of the cable, when the transmission speed of the cable exceeds the set threshold value, the laser speed sensor immediately transmits a signal to the reset assembly, the reset assembly triggers the brake module to brake, the response accuracy is improved, the problem of response lag of a traditional pay-off trolley with a braking function is solved, the pressure feedback module dynamically monitors the clamping force during braking, the cable is prevented from being damaged by overload, and the safety of construction is double-protected.

[0017] 2. The electrically-controlled forward overspeed brake assembly and the electrically-controlled reverse overspeed brake assembly are also provided with a wireless communication module, the wireless communication module transmits the data of the laser speed sensor and the pressure feedback module to a remote monitoring terminal; the wireless communication module realizes remote monitoring of braking data, a construction worker can obtain parameters such as speed and pressure in real time, which is convenient for quickly judging abnormalities (such as overspeed without triggering braking), greatly reduces the risk of high-altitude operation inspection, improves the fault response efficiency, and significantly improves the real-time performance and safety of tensioning wire drawing operation.

[0018] 3. The electrically controlled forward overspeed brake assembly and the electrically controlled reverse overspeed brake assembly respectively comprise detachably connected upper and lower assemblies, the brake module comprises upper and lower brake sliders respectively arranged in the upper and lower assemblies, the upper and lower assemblies are further respectively provided with upper and lower slide rails, the distance between the upper and lower slide rails gradually decreases in a direction away from the main body of the pay-off trolley, the upper and lower brake sliders are respectively slidably arranged on the upper and lower slide rails, and the cable is located between the upper and lower brake sliders; the upper / lower split slider is designed to cooperate with the gradually narrowing slide rail, so that the slider automatically wedges the cable along the track during braking, a self-increasing force effect is generated, and the braking force reliability is significantly improved; meanwhile, the detachable structure facilitates replacement of worn parts, reduces maintenance cost, and through the coil spring driving and the curved motion track, the passability of the intermediate cable is ensured while the overall device size is small.

[0019] 4. The fixed triangular plate and the pluggable ear seat realize the modular quick disassembly of the brake assembly, adapt to the replacement demand of different wire diameters, reduce the idle rate of equipment, and significantly improve the adaptability of field construction.

[0020] 5. Through the arrangement of the coil spring group and the reset assembly in the lower assembly, when braking is needed, the electrically controlled ratchet assembly in the reset assembly receives the electric signal of the laser speed sensor, automatically releases the ratchet to relax the traction rope, and the lower brake slider moves to the braking position on the lower slide rail under the action of the pulling force of the coil spring group, the whole braking process is automatically performed, manual intervention is not needed, the response lag between traditional mechanical structures is reduced, braking is more timely, and the occurrence of safety accidents in the tensioning frame wire operation is significantly reduced.

[0021] 6. Through the cooperative control of the safety interlocking device and the position detection sensor, when it is detected that the lower brake slider is not completely reset, the trolley is prohibited from entering the next working cycle, the risk of misoperation caused by incomplete reset is effectively prevented, the system safety is improved, the abnormal state is alarmed through the wireless module, and the safety construction specification is met.

[0022] 7. The synchronous push plate and the convex plate mechanically link to ensure that a single power source drives the synchronous movement of the double sliders, the cable eccentric wear problem caused by asynchronous movement is eliminated, the consistency of the braking effect is improved, and the service life of the cable is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1is a schematic diagram of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0025] Figure 2 is a schematic diagram of a pay-off trolley main body of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0026] Figure 3 is a structural schematic diagram of an electrically controlled forward / reverse overspeed braking assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0027] Figure 4 is a sectional view of an electrically controlled forward / reverse overspeed braking assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0028] Figure 5 is a sectional view of an upper assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0029] Figure 6 is a structural schematic diagram of a lower assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0030] Figure 7 is a sectional view of a lower assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application;

[0031] Figure 8 is a structural schematic diagram of a reset assembly of an electrically controlled bidirectional braking pay-off trolley disclosed by some embodiments of the present application.

[0032] In the figure:

[0033] 1, electrically controlled bidirectional braking pay-off trolley; 2, cable;

[0034] 10, pay-off trolley main body; 11, electrically controlled forward overspeed braking assembly; 12, electrically controlled reverse overspeed braking assembly; 13, braking module; 14, reset assembly; 16, wireless communication module;

[0035] 100, fixed triangular plate; 110, protective cover; 111, upper assembly; 112, lower assembly; 113, fixing buckle; 130, upper braking sliding block; 131, lower braking sliding block; 140, electrically controlled ratchet assembly; 141, traction rope; 142, roller; 143, safety interlocking device; 144, position detection sensor; 150, laser speed sensor; 151, pressure feedback module;

[0036] 1000, pluggable fixing lug; 1110, upper slide rail; 1111, reset coil spring; 1112, speed measuring wheel; 1113, handle; 1120, lower slide rail; 1121, coil spring group; 1300, protruding plate; 1310, connecting plate; 1311, synchronous push plate; 1400, driving motor; 1401, ratchet mechanism; 1402, pawl; 1403, ratchet; 1404, rocker. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0038] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0039] The existing pay-off trolley with automatic braking function mostly adopts mechanical one-way brake device, for example, the brake block is driven by gravity or spring force to clamp the cable, however, such scheme has the following defects:

[0040] Response lag: mechanical brake relies on physical contact to trigger, and it is difficult to respond to overspeed or reverse motion within milliseconds;

[0041] Lack of bidirectional control: only single direction abnormal motion can be dealt with, and it cannot prevent the risk of forward overspeed and reverse retraction at the same time;

[0042] Insufficient intelligence: lack of real-time monitoring and remote control function, unable to adapt to dynamic adjustment requirements under complex working conditions;

[0043] High maintenance cost: traditional brake parts wear seriously, need to be replaced frequently and easily cause damage to the surface of the cable.

[0044] In view of the above problems, it is urgent to develop a pay-off trolley device integrating intelligent sensing, bidirectional braking and remote monitoring function, so as to improve the safety and reliability of tensioning and stringing operation.

[0045] The application will be described in detail below with reference to the accompanying drawings Figures 1 to 8 The application provides an electrically-controlled bidirectional braking pay-off trolley 1.

[0046] Please refer to Figure 1 and Figure 4 The application provides an electrically-controlled bidirectional braking pay-off trolley 1, which comprises a pay-off trolley main body 10, an electrically-controlled forward overspeed braking assembly 11 and an electrically-controlled reverse overspeed braking assembly 12. The electrically-controlled forward overspeed braking assembly 11 and the electrically-controlled reverse overspeed braking assembly 12 are arranged on opposite sides of the pay-off trolley main body 10 along the direction of a wire cable 2. The electrically-controlled forward overspeed braking assembly 11 and the electrically-controlled reverse overspeed braking assembly 12 are both provided with a braking module 13 and a reset assembly 14. The braking module 13 is connected with the reset assembly 14. The braking module 13 realizes forward and / or reverse braking of the wire cable 2 (a conductor wire or a ground wire) by clamping the wire cable 2. The electrically-controlled forward overspeed braking assembly 11 and the electrically-controlled reverse overspeed braking assembly 12 are both provided with a laser speed sensor 150 and a pressure feedback module 151. The reset assembly 14 receives a signal of the laser speed sensor 150 to trigger braking operation of the braking module 13. The pressure feedback module 151 is arranged on the braking module 13 and contacts the wire cable 2 when braking is realized.

[0047] Specifically, when the laser speed sensor 150 senses an overspeed working condition, an electric signal is immediately sent to the reset assembly 14. The reset assembly 14 receives the overspeed signal to control the braking module 13 to brake the wire cable 2.

[0048] It can be understood that the embodiment can realize intelligent overspeed protection in bidirectional movement of the wire cable 2. The risk of failure of one-way braking of a traditional trolley is solved by the symmetrically arranged bidirectional braking assemblies. The laser speed sensor 150 monitors the speed of the wire cable 2 in real time. When the transmission speed of the wire cable 2 exceeds a set threshold, the laser speed sensor 150 immediately transmits a signal to the reset assembly 14. The reset assembly 14 triggers the braking module 13 to brake, improves response accuracy, solves the problem of response lag of a traditional pay-off trolley with a braking function during braking, and the pressure feedback module 151 dynamically monitors the clamping force during braking to avoid overload damage to the wire cable 2, thereby double-protecting construction safety.

[0049] Further, the electrically-controlled forward overspeed braking assembly 11 and the electrically-controlled reverse braking assembly are both provided with a protective cover 110 for protecting the internal structure.

[0050] As an optional embodiment, the embodiment is further provided with a speed measuring wheel 1112 in the upper assembly 111. The speed measuring wheel 1112 abuts against the wire cable 2, serving as a compensation device for measuring the speed of the wire cable 2 and further improving the accuracy of speed measurement.

[0051] Further, the electrically controlled forward overspeed braking assembly 11 and the electrically controlled reverse overspeed braking assembly 12 are further provided with a wireless communication module 16, the laser speed sensor 150 and the pressure feedback module 151 are electrically connected with the wireless communication module 16 and transmit data of the laser speed sensor 150 and the pressure feedback module 151 to a remote monitoring terminal (not shown in the figure) through the wireless communication module 16.

[0052] Specifically, the laser speed sensor 150 adopts Doppler laser speed measurement technology, the sampling frequency is greater than or equal to 1 kHz, the speed measurement is accurate and stable, before the stay wire operation, according to the type of the cable 2 (wire, ground wire or optical fiber composite ground wire), the remote monitoring terminal reversely outputs an adjustment signal to set the braking trigger speed threshold.

[0053] It can be understood that the remote monitoring of the braking data is realized through the wireless communication module 16, the construction personnel can obtain the speed, pressure and other parameters in real time, which is convenient for quickly judging the abnormality (such as overspeed without triggering the braking), greatly reduces the risk of high-altitude operation inspection, improves the fault response efficiency, and significantly improves the real-time performance and safety of the tension stay wire operation.

[0054] Specifically, the operator on the ground receives the working data signal of the wireless communication module 16 through the industrial computer, obtains the speed of the cable 2 and the braking block pressure and other parameters in real time, and generates a working state running curve in the industrial computer, outputs a fault report for possible abnormal working conditions in the stay wire process, reduces the manual troubleshooting work, and greatly reduces the risk of high-altitude operation inspection.

[0055] Further, please refer to Figures 3 to 7 The electrically controlled forward overspeed braking assembly 11 and the electrically controlled reverse overspeed braking assembly 12 respectively include an upper assembly 111 and a lower assembly 112 which are detachably connected, the braking module 13 includes an upper braking block 130 and a lower braking block 131 which are respectively arranged on the upper assembly 111 and the lower assembly 112, the upper assembly 111 and the lower assembly 112 are further respectively provided with an upper slide rail 1110 and a lower slide rail 1120, the distance between the upper slide rail 1110 and the lower slide rail 1120 gradually decreases in the direction away from the pay-off trolley main body 10, the upper braking block 130 and the lower braking block 131 are respectively slidably arranged on the upper slide rail 1110 and the lower slide rail 1120, and the cable 2 is located between the upper braking block 130 and the lower braking block 131.

[0056] It can be understood that the upper / lower split type sliding block design cooperates with the gradually narrowing slide rail, so that the sliding block is automatically wedged with the cable 2 along the track during braking, a self-increasing force effect is generated, and the braking force reliability is significantly improved; and the detachable structure facilitates replacement of worn parts and reduces maintenance cost.

[0057] As an optional embodiment, an elastic clamping layer can also be arranged on the side of the upper / lower brake sliding block 131 close to the cable 2, so as to realize the buffer contact between the brake sliding block and the cable 2 during braking, and to ensure the clamping force of the brake sliding block on the cable 2 while protecting the cable 2 from being damaged by friction.

[0058] Specifically, the upper assembly 111 and the lower assembly 112 are fixed and installed through the fixing buckle 113, and the fixing buckle 113 is convenient to disassemble and operate.

[0059] Further, referring to Figure 1 and Figure 2 , the fixed triangular plate 100 is arranged on the pay-off trolley body 10, and opposite ends of the fixed triangular plate 100 are respectively provided with pluggable fixed ear seats 1000 to connect the electric control forward overspeed brake assembly 11 and the electric control reverse overspeed brake assembly 12.

[0060] It can be understood that the fixed triangular plate 100 and the pluggable ear seat realize the modularization and quick disassembly of the brake assembly, adapt to the replacement demand of different wire diameters, reduce the idle rate of equipment, and significantly improve the adaptability of field construction.

[0061] Specifically, if high-altitude operation is performed, the pay-off trolley body 10, the electric control forward overspeed brake assembly 11 and the electric control reverse overspeed brake assembly 12 can be disassembled and transported to the designated work position by the high-altitude operation unmanned aerial vehicle respectively, and the installation personnel only need to install the corresponding pluggable fixed ear seat 1000 to complete the installation and positioning of the whole system, thereby reducing the transportation weight and volume of a single unmanned aerial vehicle and improving the safety of the whole work.

[0062] Optionally, in the ordinary ground wire pay-off operation, the electric control forward overspeed brake assembly 11 and the electric control reverse overspeed brake assembly 12 can be disassembled under the premise of ensuring safety, and the pay-off trolley body 10 is used as an ordinary pay-off trolley.

[0063] Further, the reset coil spring 1111 is arranged in the upper assembly 111, and the reset coil spring 1111 is connected with the upper brake sliding block 130, and when braking is performed, the reset coil spring 1111 is in a stretched state; after the braking is completed, the reset coil spring 1111 drags the upper brake sliding block 130 to automatically return to the initial working position.

[0064] Further, the lower assembly 112 is further provided with a coil spring set 1121, the lower brake sliding block 131 is provided with a connecting plate 1310, the coil spring set 1121 is connected with the connecting plate 1310, when the electrically-controlled bidirectional brake pay-off trolley 1 is in the initial state, the coil spring set 1121 is in the stretched state; the lower assembly 112 is provided with a reset assembly 14, the reset assembly 14 comprises an electrically-controlled ratchet assembly 140 and a traction rope 141, the electrically-controlled ratchet assembly 140 comprises a driving motor 1400 and a ratchet mechanism 1401, the ratchet mechanism 1401 comprises a pawl 1402 and a ratchet 1403, the driving motor 1400 controls the pawl 1402, the driving motor 1400 is electrically connected with the laser speed sensor 150, the electrically-controlled ratchet assembly 140 is coaxially connected with a roller 142, one end of the traction rope 141 is wound around the roller 142, and the other end is connected with the connecting plate 1310.

[0065] It can be understood that, through the setting of the coil spring set 1121 and the reset assembly 14 in the lower assembly 112, when braking is needed, the electrically-controlled ratchet assembly 140 in the reset assembly 14 receives the electric signal of the laser speed sensor 150, automatically releases the ratchet to relax the traction rope 141, and the lower brake sliding block 131 moves to the braking position on the lower sliding rail 1120 under the tension of the coil spring set 1121, the whole braking process is automatically performed without manual intervention, the response lag between the traditional mechanical structures is reduced, the braking is more timely, and the occurrence of safety accidents in the tensioning and cabling operation is significantly reduced.

[0066] Specifically, in order to uniformly control and process the data of the laser speed sensor 150 and the pressure feedback module 151, the automatic operation of the electrically-controlled ratchet assembly 140 in the reset assembly 14, and the signal transmission of the wireless communication module 16, the electrically-controlled bidirectional brake pay-off trolley 1 of the embodiment further integrates a control assembly (not shown in the figure), and a programmable logic control board (PLC board) can be arranged in the control assembly to realize the automatic control of the overall system.

[0067] It can be understood that, according to the cable 2 type and the related cable operation safety standard, various speed threshold standards are established, the cable-speed model is recorded in the programmable logic control board in advance, and the corresponding model is selected on the remote monitoring terminal before the cable 2 tensioning work to start the cable 2 tensioning work.

[0068] Specifically, according to the industry production standard, the cable speed > 1 km / min is defined as the overspeed loss control speed threshold value of all cable types in the embodiment.

[0069] Further, the electric control ratchet assembly 140 is also provided with a safety interlock device 143 and a position detection sensor 144, the safety interlock device 143 is signal connected with the wireless communication module 16, the safety interlock device 143 receives the signal of the position detection sensor 144 to control the driving motor 1400, when it is detected that the lower brake sliding block 131 is not completely reset, the trolley is prohibited from entering the next working cycle.

[0070] It can be understood that, through the cooperative control of the safety interlock device 143 and the position detection sensor 144, when it is detected that the lower brake sliding block 131 is not completely reset, the trolley is prohibited from entering the next working cycle, effectively preventing the risk of misoperation caused by incomplete reset, improving the safety of the system, and the abnormal state is alarmed through the wireless module, which meets the safety construction specification.

[0071] Specifically, the roller 142 is also provided with a rotating motor (not shown in the figure), which receives the electric signal of the position detection sensor 144, and can work after the brake is completed to control the winding of the traction rope 141, so that the lower brake sliding block 131 is automatically reset. Optionally, in order to prevent the electronic system from failing to reset completely, the electric control ratchet assembly 140 is also provided with a rocker 1404 for manual reset, which improves the overall stability.

[0072] Further, the lower assembly 112 is also provided with a synchronous push plate 1311, which is connected and fixed with the lower brake sliding block 131. The upper brake sliding block 130 is provided with a protruding plate 1300 on the side close to the lower assembly 112. When braking, the lower brake sliding block 131 drives the synchronous push plate 1311 to move, the synchronous push plate 1311 abuts against the protruding plate 1300 and drives the upper brake sliding block 130 to move, so that the upper and lower brake sliding blocks 131 are cooperatively clamped through mechanical linkage.

[0073] It can be understood that the mechanical linkage of the synchronous push plate 1311 and the protruding plate 1300 ensures the synchronous movement of the two sliding blocks driven by a single power source, eliminates the problem of cable 2 bias wear caused by asynchronous movement, and thus improves the consistency of the braking effect and prolongs the service life of the cable 2.

[0074] Specifically, the upper assembly 111 is also provided with a handle 1113, which facilitates the transportation and disassembly and installation of the electric control forward overspeed brake assembly 11 or the electric control reverse overspeed brake assembly 12.

[0075] It can be understood that the mechanical structure assemblies in the electric control forward overspeed brake assembly 11 and the electric control reverse overspeed brake assembly 12 are completely the same, and the difference lies in that the detection direction of the speed of the cable 2 is opposite, and the software of the programmable control board in the control assembly is different.

[0076] Compared with the prior art, the electric control bidirectional brake pay-off trolley provided by the application has the following beneficial technical effects:

[0077] The application provides an electric control bidirectional braking pay-off cable trolley, which comprises a pay-off cable trolley main body, an electric control forward overspeed braking assembly and an electric control reverse overspeed braking assembly, the electric control forward overspeed braking assembly and the electric control reverse overspeed braking assembly are arranged on opposite sides of the pay-off cable trolley main body along the direction of a cable; the electric control forward overspeed braking assembly and the electric control reverse overspeed braking assembly are both provided with a braking module and a reset assembly, the braking module is connected with the reset assembly, the braking module realizes forward and / or reverse braking by clamping the cable; the electric control forward overspeed braking assembly and the electric control reverse overspeed braking assembly are both provided with a laser speed measurement sensor and a pressure feedback module, the reset assembly receives the signal of the laser speed measurement sensor to realize the braking operation of the braking module, and the pressure feedback module is arranged on the braking module and is in contact with the cable during braking; this scheme can realize intelligent overspeed protection during bidirectional movement of the cable, solves the risk of single-directional braking failure of a traditional trolley through the symmetrically arranged bidirectional braking assembly, the laser speed measurement sensor realizes real-time monitoring of the speed of the cable, when the transmission speed of the cable exceeds a set threshold, the laser speed measurement sensor immediately transmits a signal to the reset assembly, the reset assembly triggers the braking module to brake, the response accuracy is improved, the problem of response lag of a traditional pay-off cable trolley with a braking function during braking is solved, the pressure feedback module dynamically monitors the clamping force during braking, overloading damage to the cable is avoided, and the construction safety is double-protected.

[0078] It should be noted that the terms "comprising", "including", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0079] In addition, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in the reverse order, for example, the described methods can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0080] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An electrically controlled bi-directional braking pay-off trolley, characterized in that, The utility model relates to a kind of electric control two-way brake pay-off trolley, including: Pay-off trolley body; Electric control positive direction overspeed brake assembly, it is arranged in the pay-off trolley body one side along cable direction; Electric control reverse direction overspeed brake assembly, it is arranged in the pay-off trolley body other side along cable direction; Wherein, the electric control positive direction overspeed brake assembly and the electric control reverse direction overspeed brake assembly inside include: Brake module, the brake module is realized the positive direction and / or reverse direction brake of cable by clamping cable; Reset component, the reset component is connected with the brake module; Laser speed sensor, the reset component receives the signal of the laser speed sensor and triggers the brake operation of the brake module; Pressure feedback module, the pressure feedback module is arranged on the brake module and is contacted with cable when realizing brake; Wherein, the electric control positive direction overspeed brake assembly and the electric control reverse direction overspeed brake assembly respectively include detachable connection upper assembly and lower assembly, the brake module includes upper brake slider and lower brake slider respectively arranged in the upper assembly and the lower assembly, the upper assembly and the lower assembly are further respectively provided with upper slide rail and lower slide rail;The distance between the upper slide rail and the lower slide rail gradually decreases along the direction away from the pay-off trolley body, the upper brake slider and the lower brake slider are slidably arranged on the upper slide rail and the lower slide rail respectively, and cable is located between the upper brake slider and the lower brake slider; The upper assembly is further provided with reset coil spring, the reset coil spring is connected with the upper brake slider, when braking, the reset coil spring is in tensile state;The lower assembly is further provided with coil spring group, the lower brake slider is provided with connecting plate, the coil spring group is connected with the connecting plate, when the electric control two-way brake pay-off trolley is in initial state, the coil spring group is in tensile state.

2. An electrically controlled bidirectional brake pay-off trolley according to claim 1, characterized in that, The electric control positive direction overspeed brake assembly and the electric control reverse direction overspeed brake assembly are further provided with wireless communication module, the laser speed sensor and the pressure feedback module are electrically connected with the wireless communication module and transmit the data of the laser speed sensor and the pressure feedback module to remote monitoring terminal through the wireless communication module.

3. An electrically controlled bidirectional brake pay-off trolley according to claim 1, characterized in that, The pay-off trolley body is provided with fixed triangular plate, opposite ends of the fixed triangular plate are respectively provided with pluggable fixed lug seat to connect the electric control positive direction overspeed brake assembly and the electric control reverse direction overspeed brake assembly.

4. An electrically controlled bidirectional brake pay-off roller according to claim 1, wherein, The lower assembly is provided with the reset component, the reset component includes electric control ratchet assembly and traction rope, the electric control ratchet assembly includes drive motor and ratchet mechanism, the ratchet mechanism includes pawl and ratchet, the drive motor controls the pawl, and the drive motor is electrically connected with the laser speed sensor, the electric control ratchet assembly coaxially connects a roller, one end of the traction rope is wound around the roller, and the other end is connected with the connecting plate.

5. An electrically controlled bidirectional brake pay-off trolley according to claim 4, characterized in that, The electric control ratchet assembly is further provided with a safety interlock device and a position detection sensor, the safety interlock device is electrically connected with the position detection sensor, the safety interlock device receives the position detection sensor signal to control the driving motor, and when it is detected that the lower brake slider is not completely reset, the trolley is prohibited from entering the next working cycle.

6. An electrically controlled bidirectional brake pay-off roller according to claim 1, wherein, The lower assembly is further provided with a synchronous push plate, the synchronous push plate is connected and fixed with the lower brake slider, the upper brake slider is provided with a protruding plate on the side close to the lower assembly, when braking, the lower brake slider drives the synchronous push plate to move, the synchronous push plate abuts against the protruding plate and drives the upper brake slider to move, and the upper and lower brake sliders are cooperatively clamped through mechanical linkage.

7. An electrically controlled bidirectional braking pay-off trolley according to claim 1, characterized in that, The electric control forward overspeed brake assembly and the electric control reverse overspeed brake assembly are both provided with protection.

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