Single-swing-arm type electric control anti-line-displacement tackle

Abstract

The invention relates to the technical field of power construction tools and instruments, in particular to a single-swing-arm type electric control anti-line-running tackle, and forward or reverse braking of a cable is carried out through an electric control forward overspeed braking assembly and an electric control reverse overspeed braking assembly which are arranged on the two opposite sides of a paying-off tackle body. The pressure sensor is arranged in the single-swing-arm type electric control anti-line-running tackle, the clamping pressure of the braking sliding block on a cable during braking can be monitored in real time, monitoring data of the braking sliding block are transmitted to the reset assembly, a braking pressure threshold value is formulated in advance according to the type of the cable or the construction standard, and according to the monitoring data of the pressure sensor, the braking sliding block can be reset. The reset assembly for controlling the clamping pressure can be adjusted at any time, so that the brake sliding block is far away from or close to the cable, the clamping pressure is changed, the single-swing-arm type electric control anti-line-running tackle has a wider application range through the design, the risk of cable abrasion is reduced through the clamping pressure capable of being adjusted in real time, and the service life of the single-swing-arm type electric control anti-line-running tackle is prolonged. The economic loss under the abnormal working condition can be reduced, and the construction safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction tools, and in particular to a single-swing-arm type electrically controlled anti-line-running pulley. Background Art

[0002] During transmission line construction, the pay-out pulley, as the core device for tensioning and stringing cables, may experience abnormal operating conditions such as traction rope breakage, winch failure, or operational errors during operation. The cable may slide forward at an excessive speed or retract in the reverse direction due to inertia, causing the cable to fall, equipment damage, and even casualties. To prevent safety accidents, existing solutions often use mechanical one-way braking devices to implement emergency braking of out-of-control cables. For example, gravity or spring force drives the brake pad to clamp the cable. Such solutions rely on mechanical transmission relationships for control, and their clamping pressure is fixed. The clamping pressure cannot be dynamically changed according to different cable types or real-time clamping pressure data. In many cases, after a braking operation, the surface of some cables may be worn due to excessive clamping pressure, resulting in unnecessary economic losses. Summary of the Invention

[0003] The present application discloses a single-swing-arm electrically controlled anti-line-running pulley to solve the technical problem in the related art that the clamping pressure of the existing line-releasing pulley with a braking function is fixed and cannot be adaptively changed.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions: The present invention provides a single-swing-arm electric-controlled anti-runaway pulley, which is used for cable pay-off and emergency braking, and comprises: a pay-off pulley body; an electric-controlled forward overspeed brake component, which is arranged on one side of the pay-off pulley body along the cable direction; and an electric-controlled reverse overspeed brake component, which is arranged on the other side of the pay-off pulley body along the cable direction; wherein the electric-controlled forward overspeed brake component and the electric-controlled reverse overspeed brake component both comprise an upper component and a lower component which are respectively provided at opposite ends of the cable and are detachably connected, a pressure sensor is arranged in the upper component or the lower component, and a protective frame is arranged outside the upper component and the lower component; and a brake is arranged in the lower component. A movable module and a reset component, the reset component is arranged on the side of the lower component away from the cable and is electrically connected to the pressure sensor, the brake module includes a parallelogram connecting rod and a drive spring, a first brake slider is provided on the side of the parallelogram connecting rod close to the cable, one end of the drive spring is provided on the protective frame, and the other end is provided on the parallelogram connecting rod, and the elastic direction of the drive spring is pointing in the direction close to the cable; the first brake slider is provided with a transmission rod, one end of the transmission rod is fixed on the first brake slider, and the other end abuts against the reset component, and the reset component controls the vertical movement of the transmission rod.

[0005] Preferably, the reset assembly is provided with a trigger tongue, the transmission rod is in contact with the tongue, one end of the tongue in contact with the transmission rod is an inclined surface, and the other end is fixed with a compression spring, and the end of the transmission rod in contact with the tongue is provided with a corresponding sliding inclined surface structure, the reset assembly also includes an electric screw, the upper part of the tongue is provided with a protrusion, the transmission nut of the electric screw is engaged with the protrusion, and the horizontal movement of the tongue can squeeze the sliding inclined surface structure to make the transmission rod move vertically.

[0006] Preferably, a displacement sensor is further provided in the reset assembly for monitoring the displacement of the electric screw.

[0007] Preferably, a control terminal is provided in the lower component, a programmable control board is integrated in the control terminal, the pressure sensor and the displacement sensor are electrically connected to the control terminal, and a safety interlock device is also provided at one end of the electric screw, the safety interlock device is electrically connected to the control terminal and controls the start and stop of the electric screw.

[0008] Preferably, a brake fitting assembly is provided in the upper assembly, a cable is provided between the brake module and the brake fitting assembly, a second brake slider is provided in the brake fitting assembly, and the cable is clamped between the first brake slider and the second brake slider for braking.

[0009] Preferably, the contact surface between the first brake slider and / or the second brake slider and the cable is provided with a gradient elastic layer, and the gradient elastic layer includes an outer high-elasticity rubber layer and an inner low-elasticity polyurethane layer.

[0010] Preferably, the mating brake assembly includes an adjustment mechanism and an adjustment plate connected to the adjustment mechanism, the adjustment mechanism includes an adjustment slider and a triangular slider, the adjustment slider and the adjustment plate are respectively arranged on two opposite oblique sides of the triangular slider, the triangular slider slides horizontally between the adjustment slider and the adjustment plate so that the distance between the adjustment slider and the adjustment plate changes; the second brake slider is arranged on the adjustment plate.

[0011] Preferably, the adjustment plate is further provided with a plurality of speed measuring pulleys, and the speed measuring pulleys abut against the cables.

[0012] Preferably, the opposite ends of the line-paying pulley body are respectively provided with detachable connecting ribs, and the ends of the two connecting ribs are respectively provided with pluggable fixing ears to connect the electrically controlled forward overspeed braking assembly and the electrically controlled reverse overspeed braking assembly.

[0013] Preferably, the pluggable fixing ear seat is connected to the electrically controlled forward overspeed brake assembly or the electrically controlled reverse overspeed brake assembly via a rotatable pin, and the connection angle between the connecting rib and the electrically controlled forward overspeed brake assembly or the electrically controlled reverse overspeed brake assembly is adjustable.

[0014] The technical solution adopted by the present invention can achieve the following beneficial effects: 1. The present invention provides a single-swing-arm type electrically controlled anti-line running pulley, which brakes the cable in the forward or reverse direction by means of an electrically controlled forward overspeed brake assembly and an electrically controlled reverse overspeed brake assembly arranged on opposite sides of the line-releasing pulley body. The parallelogram connecting rod has good stable motion characteristics in a specified direction. The first brake slider is arranged on the parallelogram connecting rod, and the first brake slider can gradually and stably abut the cable for braking. At this time, the forces exerted by the transmission rod and the parallelogram connecting rod on the first brake slider are mutually balanced. At the same time, a pressure sensor is also provided in the single-swing-arm type electrically controlled anti-line running pulley of the present invention, which can monitor the first The brake slider clamps the cable during braking, and transmits its monitoring data to the reset component. The brake pressure threshold is set in advance according to the type of cable or construction standard. According to the monitoring data of the pressure sensor, the reset component can be adjusted at any time to control the movement of the transmission rod. The vertical movement of the transmission rod makes the first brake slider move away from or close to the cable, changing the clamping pressure. The above design makes the single-swing arm electric-controlled anti-runaway pulley of the present invention have a wider range of application scenarios. The clamping pressure that can be adjusted in real time also reduces the risk of cable wear, helps to reduce economic losses under abnormal working conditions, and ensures construction safety.

[0015] 2. The present invention provides a single-swing arm type electric-controlled anti-runaway pulley, in which the inclined surface on the trigger tongue of the reset assembly abuts against the sliding inclined surface structure on the transmission rod. According to the relative rule of motion, under the premise that the two inclined surface structures remain in abutment, the inclined surface at the end of the tongue moves in the horizontal direction, and the sliding inclined surface structure of the transmission rod abutting therewith will slide along the inclined surface at the end of the tongue, thereby driving the transmission rod to move in the vertical direction, and the first brake slider approaches or moves away from the cable to achieve adjustment of the braking pressure; at the same time, the electric screw has the characteristics of reliable performance, sensitive action, and smooth operation, and a small adjustment range. Under the control of the electric screw, the tongue can move in a small range, which is conducive to achieving fine control of the clamping pressure.

[0016] 3. The control terminal in this device is equipped with a programmable control board. The programmable control board is equipped with relevant programs such as clamping pressure threshold and safety operation standards. Various power drive devices in the device are controlled according to real-time working conditions to realize industrial automation. The displacement sensor and safety interlock device set in the lower component serve as safety devices in this device. They can judge the safe working range of the electric screw according to the real-time displacement of the electric screw. When the working range is exceeded, the safety interlock device locks the electric screw and prohibits the anti-runaway pulley from entering the next working stroke, which is conducive to safe operation and reduces the occurrence of safety accidents.

[0017] 4. The second brake slider is provided to cooperate with the first brake slider for clamping, which helps to quickly brake the out-of-control cable.

[0018] 5. By setting a gradient elastic layer on the clamping surface of the brake slider, which is composed of an outer layer of high-elasticity rubber and an inner layer of low-elasticity polyurethane, the problems of poor clamping adaptability and high cable damage rate caused by the single material of the traditional brake slider are solved. The outer layer of high-elasticity rubber has a high deformation ability and can quickly fit the surface of small-diameter cables to provide uniform clamping force. The buffering properties of the high-elasticity rubber can absorb the impact force during cable movement and reduce surface indentations or scratches caused by direct contact with hard materials; the inner layer of low-elasticity polyurethane provides rigid support to ensure that large-diameter cables are not easily collapsed when clamped, avoiding clamping failure due to excessive compression. This solves the problem that traditional brake sliders use a single material (such as metal or rubber), which is difficult to take into account the flexible fitting of small-diameter cables and the rigid support requirements of large-diameter cables.

[0019] 6. An adjustment plate with adjustable spacing is provided so that the second brake slider can move vertically within the protective frame. That is, according to the diameter of the cable, the spacing between the second brake slider and the cable can be adjusted before paying out the cable. For different cables, it is ensured that the optimal braking effect can be achieved without damaging the cable, thereby improving the applicability of the device.

[0020] 7. The speed measuring pulley serves as a speed measuring mechanism during the cable pay-off process. It can set a braking speed threshold according to the cable pay-off speed. When the speed reaches the maximum safe speed, the speed measurement data is transmitted to the braking module to brake the cable.

[0021] 8. Removable connecting ribs are set on both sides of the cable-laying pulley body. The length and connection strength of the connecting ribs can be replaced according to the cable model and specific construction standards. The modular design makes the device easier to transport. When components are damaged, only the corresponding standard parts need to be replaced. It is easy to operate and improves work efficiency.

[0022] 9. The rotatable pin connection and angle-adjustable design of the pluggable fixing ear and the electronically controlled forward / reverse brake assembly solves the problems of poor installation adaptability and complex maintenance caused by the rigid connection of traditional fixing ear. The angle between the connecting rib and the brake assembly can be dynamically adjusted according to the cable route or installation environment to adapt to cable paths with different inclination angles and avoid installation errors caused by fixed angles. The rotatable pin design allows for quick disassembly of the brake assembly and the fixing ear, allowing installation or replacement without tools, saving construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of a single swing arm type electrically controlled anti-line running pulley disclosed in some embodiments of the present application; Figure 2 1 is a schematic diagram of a line-releasing pulley body of a single-swing-arm type electrically controlled line-preventing pulley disclosed in some embodiments of the present application; Figure 3 It is a cross-sectional view of an electrically controlled forward overspeed braking assembly or an electrically controlled reverse overspeed braking assembly of a single-swing-arm electrically controlled anti-line runaway pulley disclosed in some embodiments of the present application; Figure 4 yes Figure 3 A magnified view of middle A; Figure 5 It is a schematic diagram of a reset assembly of a single swing arm type electrically controlled anti-line running pulley disclosed in some embodiments of the present application; Figure 6 Schematic diagram of the upper assembly of a single-swing-arm electric-controlled anti-line-running pulley disclosed in some embodiments of the present application; Figure 7 Schematic diagram of a protective frame of an upper component of a single-swing-arm type electrically controlled anti-line-running pulley disclosed in some embodiments of the present application; Figure 8 It is a cross-sectional view of a first brake slider of a single-swing-arm electric-controlled anti-line-running pulley disclosed in some embodiments of the present application.

[0025] In the picture: 1. A single-arm electric-controlled anti-line pulley; 2. Cable; 10. Pay-off pulley body; 11. Electric forward overspeed brake assembly; 12. Electric reverse overspeed brake assembly; 13. Braking module; 14. Reset assembly; 100. Connecting rib; 101. Pluggable fixing ear seat; 102. Rotatable latch; 110. Upper assembly; 111. Lower assembly; 112. Pressure sensor; 113. Protective frame; 114. Control terminal; 115. Brake mating assembly; 130. Parallelogram connecting rod; 131. Drive spring; 132. First brake slider; 133. Transmission rod; 140. Tab; 141. Compression spring; 142. Electric screw; 143. Displacement sensor; 144. Safety interlock device; 1130, slide groove; 1131, buckle; 1150, second brake slider; 1151, adjustment mechanism; 1152, adjustment slider; 1153, triangular slider; 1154, adjustment plate; 1155, speed measuring pulley; 1320, gradient elastic layer; 1321, rubber layer; 1322, polyurethane layer; 1330, sliding ramp structure; 1400, bump; 1420, transmission nut. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0027] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0028] During transmission line construction, the cable-laying pulley, a core device for tensioning and stringing cables, is crucial for the safety of both operators and equipment. Existing technologies primarily use pulley blocks to guide cables. However, under abnormal operating conditions, such as a break in the traction rope, a winch failure, or operator error, the cable can slip forward at excessive speed or retract backward due to inertia, potentially causing it to fall, damage equipment, or even casualties.

[0029] Existing solutions often use mechanical clamping brakes, such as using spring force or gravity to drive brake blocks to clamp the cable. However, these solutions have the following key drawbacks: The clamping pressure is not adjustable: Traditional brake sliders rely on springs or steel cables with fixed stiffness to provide clamping force. They cannot dynamically adjust the pressure according to the cable type (such as conductor, ground wire, fiber-optic composite ground wire) or diameter, resulting in loose clamping of small-diameter cables or surface damage to large-diameter cables.

[0030] Poor adaptability: Fixed clamping force cannot cope with different traction force fluctuation scenarios, such as cable sag changes or sudden wind disturbances in mountainous terrain, which can easily cause clamping failure or excessive braking.

[0031] High maintenance cost: Traditional brake sliders are prone to wear due to long-term fixed pressure and need to be replaced frequently. The replacement process requires disassembly of the entire pulley assembly, which is time-consuming and inefficient. The following is combined with Figures 1 to 8 , a single-swing-arm electric-controlled anti-runaway pulley 1 provided in this application is described in detail through specific embodiments and application scenarios.

[0032] The embodiment of the present invention provides a single-swing arm electric-controlled anti-line-running pulley 1, which is used for the pay-out and emergency braking of the cable 2, including a pay-out pulley body 10; an electric-controlled forward overspeed braking component 11, which is arranged on one side of the pay-out pulley body 10 along the direction of the cable 2; and an electric-controlled reverse overspeed braking component 12, which is arranged on the other side of the pay-out pulley body 10 along the direction of the cable 2; wherein the electric-controlled forward overspeed braking component 11 and the electric-controlled reverse overspeed braking component 12 both include an upper component 110 and a lower component 111 which are respectively provided at opposite ends of the cable 2 and are detachably connected, a pressure sensor 112 is provided in the upper component 110 or the lower component 111, and a protective frame 113 is provided outside the upper component 110 and the lower component 111; a brake is provided in the lower component 111. Module 13 and reset assembly 14, the reset assembly 14 is arranged on the side of the lower assembly 111 away from the cable 2 and is connected to the signal of the pressure sensor 112, the brake module 13 includes a parallelogram link 130 and a drive spring 131, and a first brake slider 132 is provided on the side of the parallelogram link 130 close to the cable 2, one end of the drive spring 131 is provided on the protective frame 113, and the other end is provided on the parallelogram link 130, and the elastic direction of the drive spring 131 is pointing in the direction close to the cable 2; the first brake slider 132 is provided with a transmission rod 133, one end of the transmission rod 133 is fixed on the first brake slider 132, and the other end is in contact with the reset assembly 14, and the reset assembly 14 controls the vertical movement of the transmission rod 133.

[0033] Specifically, the upper component 110 and the lower component 111 are fixed by means of a snap 1131 which is easy to install. The modular design facilitates the transportation, installation and disassembly of the entire device. When a fault occurs, only local troubleshooting is required, thereby improving work efficiency.

[0034] It can be understood that the present invention provides a single-swing-arm type electrically controlled anti-line running pulley 1, which performs forward or reverse braking of the cable 2 by means of an electrically controlled forward overspeed braking assembly 11 and an electrically controlled reverse overspeed braking assembly 12 arranged on opposite sides of the line-releasing pulley body 10. The parallelogram connecting rod 130 has good stable motion characteristics in a specified direction. The first brake slider 132 is arranged on the parallelogram connecting rod 130, and the first brake slider 132 can stably and gradually abut the cable 2 for braking. At this time, the forces exerted on the first brake slider 132 by the transmission rod 133 and the parallelogram connecting rod 130 are balanced with each other. At the same time, a pressure sensor 112 is also provided in the single-swing-arm type electrically controlled anti-line running pulley 1 of the present invention. It can monitor in real time the clamping pressure of the first brake slider 132 on the cable 2 during braking, transmit the monitoring data to the reset component 14, and formulate the braking pressure threshold in advance according to the type of cable 2 or the construction standard. According to the monitoring data of the pressure sensor 112, the reset component 14 can be adjusted at any time to control the movement of the transmission rod 133. The vertical movement of the transmission rod 133 makes the first brake slider 132 move away from or close to the cable 2, thereby changing the clamping pressure. In summary, the design enables the single-swing arm type electric-controlled anti-runaway pulley 1 of the present invention to have a wider range of application scenarios. The clamping pressure that can be adjusted in real time also reduces the risk of wear of the cable 2, helps to reduce economic losses under abnormal working conditions, and ensures construction safety.

[0035] For further information, please refer to Figures 3 to 5 The reset assembly 14 is provided with a trigger tongue 140, and the transmission rod 133 abuts against the tongue 140. One end of the tongue 140 abutting against the transmission rod 133 is an inclined surface, and the other end is fixed with a compression spring 141. The end of the transmission rod 133 abutting against the tongue 140 is provided with a corresponding sliding inclined surface structure 1330. The reset assembly 14 also includes an electric screw 142, and a protrusion 1400 is provided on the upper part of the tongue 140. The transmission nut 1420 of the electric screw 142 is engaged with the protrusion 1400. The horizontal movement of the tongue 140 can squeeze the sliding inclined surface structure 1330 to make the transmission rod 133 move vertically.

[0036] It can be understood that the inclined surface on the triggering tongue 140 of the reset assembly 14 abuts against the sliding inclined surface structure 1330 on the transmission rod 133. According to the relative rule of movement, under the premise that the two inclined surface structures remain in abutment, the inclined surface at the end of the tongue 140 moves in the horizontal direction, and the sliding inclined surface structure 1330 of the transmission rod 133 abutting therewith will slide along the inclined surface at the end of the tongue 140, thereby driving the transmission rod 133 to move in the vertical direction, and the first brake slider 132 approaches or moves away from the cable 2 to achieve adjustment of the braking pressure; at the same time, the electric screw 142 has the characteristics of reliable performance, sensitive action, and smooth operation, and a small adjustment range. Under the control of the electric screw 142, the tongue 140 can move in a small range, which is conducive to achieving fine control of the clamping pressure.

[0037] For details, please refer to Figure 8 In this embodiment, the pressure sensor 112 is arranged inside the first brake slider 132, and can directly monitor the pressure between the first brake slider 132 and the cable 2. This type of pressure sensor 112 has a signal sending module, which can send the real-time monitored pressure signal to the signal receiving end without the need for wire connection.

[0038] Furthermore, a displacement sensor 143 is provided in the reset component 14 for monitoring the displacement of the electric screw 142; a control terminal 114 is provided in the lower component 111, and a programmable control board (not shown in the figure) is integrated in the control terminal 114, the pressure sensor 112 and the displacement sensor 143 are electrically connected to the control terminal 114, and a safety interlock device 144 is also provided at one end of the electric screw 142, which is electrically connected to the control terminal 114 and controls the start and stop of the electric screw 142.

[0039] It can be understood that the programmable control board is provided with relevant programs such as clamping pressure threshold, safe operation standards, etc., which control various power drive devices in the device according to real-time working conditions to realize industrial automation; the displacement sensor 143 and the safety interlock device 144 provided in the lower component 111 serve as safety devices in this device, which can judge the safe working range of the electric screw 142 according to the real-time displacement of the electric screw 142. When the working range is exceeded, the safety interlock device 144 locks the electric screw 142 and prohibits the anti-runaway pulley from entering the next working stroke, which is conducive to safe operation and reduces the occurrence of safety accidents.

[0040] It should be noted that the difference between setting the pressure sensor 112 on the upper component 110 and setting it on the lower component 111 is that in order to more accurately determine the cable friction force, setting the pressure sensor 112 on the lower component 111 requires adding the gravity of the cable 2 to the established clamping pressure threshold.

[0041] For further information, please refer to Figure 6 and Figure 7 A brake matching assembly 115 is provided in the upper assembly 110, the cable 2 is provided between the brake module 13 and the brake matching assembly 115, and a second brake slider 1150 is provided in the brake matching assembly 115. The cable 2 is clamped between the first brake slider 132 and the second brake slider 1150 for braking; the second brake slider 1150 is provided to cooperate with the first brake slider 132 for clamping, which helps to quickly brake the out-of-control cable 2.

[0042] As an optional embodiment, the above-mentioned medium pressure sensor 112 can be set in the first brake slider 132 and / or the second brake slider 1150, or set in a position in the upper component 110 or the lower component 111 to facilitate sensing the pressure of the cable 2, which is not limited here.

[0043] For further information, please refer to Figure 8 The contact surface between the first brake slider 132 and / or the second brake slider 1150 and the cable 2 is provided with a gradient elastic layer 1320 , and the gradient elastic layer 1320 includes an outer high-elasticity rubber layer 1321 and an inner low-elasticity polyurethane layer 1322 .

[0044] Specifically, in this embodiment, the gradient elastic layer 1320 is provided on the contact surface between the first brake slider 132 and the cable 2 .

[0045] It can be understood that by setting a gradient elastic layer 1320 on the clamping surface of the brake slider, which is composed of an outer layer of high-elasticity rubber and an inner layer of low-elasticity polyurethane, the problems of poor clamping adaptability and high damage rate of cable 2 caused by the single material of the traditional brake slider are solved. The outer layer of high-elasticity rubber has a high deformation ability and can quickly fit the surface of the small-diameter cable 2 to provide uniform clamping force. The buffering properties of the high-elasticity rubber can absorb the impact force of the cable 2 during movement and reduce surface indentations or scratches caused by direct contact with hard materials; the inner layer of low-elasticity polyurethane provides rigid support to ensure that the large-diameter cable 2 is not easy to collapse when clamped, avoiding clamping failure due to excessive compression, and solving the problem that the traditional brake slider uses a single material (such as metal or rubber), which is difficult to take into account the flexible fitting of the small-diameter cable 2 and the rigid support requirements of the large-diameter cable 2.

[0046] For further information, please refer to Figure 6 and Figure 7 The cooperating brake assembly includes an adjusting mechanism 1151 and an adjusting plate 1154 connected to the adjusting mechanism 1151. The adjusting mechanism 1151 includes an adjusting slider 1152 and a triangular slider 1153. The adjusting slider 1152 and the adjusting plate 1154 are respectively arranged on two opposite oblique sides of the triangular slider 1153. The triangular slider 1153 slides horizontally between the adjusting slider 1152 and the adjusting plate 1154 so that the distance between the adjusting slider 1152 and the adjusting plate 1154 changes; the second brake slider 1150 is arranged on the adjusting plate 1154.

[0047] Specifically, a sliding groove 1130 is correspondingly provided on the protection frame 113 , and the adjustment plate 1154 is clamped in the sliding groove 1130 and slides within the range of the sliding groove 1130 to achieve vertical movement of the adjustment plate 1154 .

[0048] It can be understood that an adjustment plate 1154 with adjustable spacing is provided so that the second brake slider 1150 can move vertically in the protective frame 113, that is, according to the diameter of the cable 2, the spacing between the second brake slider 1150 and the cable 2 can be adjusted before releasing the cable. For different cables 2, it is ensured that the optimal braking effect can be achieved without damaging the cable 2, thereby improving the applicability of the device.

[0049] Furthermore, a number of speed measuring pulleys 1155 are provided on the adjustment plate 1154, and the speed measuring pulleys 1155 abut against the cable 2; the speed measuring pulleys 1155 serve as speed measuring mechanisms during the pay-off process of the cable 2, and can set a braking speed threshold according to the pay-off speed of the cable 2. When the speed reaches the maximum safe speed, the speed measurement data is transmitted to the braking module 13 to brake the cable 2.

[0050] Specifically, the speed measurement threshold is cable speed > 1 km / min.

[0051] Specifically, the speed measuring pulley 1155 can also be used as a guide wheel in some cases where speed measurement is not required, thereby increasing the stability of the cable 2 when it is being paid out.

[0052] For further information, please refer to Figure 1 and Figure 2 The opposite ends of the line-releasing pulley body 10 are respectively provided with detachable connecting ribs 100, and the ends of the two connecting ribs 100 are respectively provided with pluggable fixing ear seats 101 to connect the electric-controlled forward overspeed brake assembly 11 and the electric-controlled reverse overspeed brake assembly 12.

[0053] Specifically, detachable connecting ribs 100 are provided on both sides of the line-laying pulley body 10. The length and connection strength of the connecting ribs 100 can be replaced accordingly according to the model of the cable 2 and the specific construction standards. The modular design can make the device easier to transport. When components are damaged, only the corresponding standard parts need to be replaced. The operation is simple and the work efficiency is improved.

[0054] Furthermore, the pluggable fixed ear seat 101 is connected to the electric forward overspeed brake assembly 11 or the electric reverse overspeed brake assembly 12 through a rotatable pin 102, and the connection angle between the connecting rib 100 and the electric forward overspeed brake assembly 11 or the electric reverse overspeed brake assembly 12 is adjustable.

[0055] It can be understood that the connection between the pluggable fixed ear seat 101 and the rotatable pin 102 of the electric forward / reverse brake assembly and the angle-adjustable design solves the problems of poor installation adaptability and complex maintenance caused by the rigid connection of the traditional fixed ear seat; the angle between the connecting rib 100 and the brake assembly can be dynamically adjusted according to the direction of the cable 2 or the installation environment, adapting to the cable 2 path with different inclination angles, avoiding installation errors caused by fixed angles, and the rotatable pin 102 design allows the brake assembly and the fixed ear seat to be quickly disassembled, and installation or replacement can be completed without tools, saving construction time.

[0056] A braking workflow of a single-swing-arm electric-controlled anti-runaway pulley 1 provided by an embodiment of the present invention is as follows: when the staff finds an abnormal working condition or a speed monitoring alarm of the cable 2, the reset component 14 is triggered to release the restriction of the transmission rod 133, and the first brake slider 132 approaches the cable 2 under the action of the driving spring 131. Under the interaction of forces, the pressure sensor 112 in the first brake slider 132 monitors the clamping pressure at all times. When the pressure exceeds the pressure threshold set in the programmable control board, a signal is sent to the control terminal 114, triggering the safety interlock device 144, controlling the movement of the electric screw 142, and further driving the first brake slider 132 to relax, reduce the clamping pressure, and prevent damage to the cable 2.

[0057] Compared with the prior art, the single-swing-arm electric-controlled anti-line-running pulley provided by the embodiment of the present invention has the following beneficial effects: The present invention provides a single-swing-arm type electrically controlled anti-line running pulley, which brakes the cable in the forward or reverse direction by means of an electrically controlled forward overspeed brake assembly and an electrically controlled reverse overspeed brake assembly arranged on opposite sides of the line-releasing pulley body. The parallelogram connecting rod has good stable motion characteristics in a specified direction. The first brake slider is arranged on the parallelogram connecting rod, and the first brake slider can stably and gradually abut the cable for braking. At this time, the forces exerted by the transmission rod and the parallelogram connecting rod on the first brake slider are balanced with each other. At the same time, a pressure sensor is also provided in the single-swing-arm type electrically controlled anti-line running pulley of the present invention, which can monitor the first brake slider in real time. The clamping pressure of the movable slider on the cable during braking is transmitted to the reset component, and the braking pressure threshold is set in advance according to the type of cable or the construction standard. According to the monitoring data of the pressure sensor, the reset component can be adjusted at any time to control the movement of the transmission rod. The vertical movement of the transmission rod makes the first brake slider move away from or close to the cable, thereby changing the clamping pressure. The above design makes the single-swing arm electric-controlled anti-line pulley of the present invention have a wider range of application scenarios. The clamping pressure that can be adjusted in real time also reduces the risk of cable wear, helps to reduce economic losses under abnormal working conditions, and ensures construction safety.

[0058] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0059] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0060] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A single-arm electric-controlled anti-line pulley for cable payout and emergency braking, characterized by: include: Line-paying block body; An electrically controlled forward overspeed brake assembly is provided on one side of the wire-paying pulley body along the direction of the wire; An electrically controlled reverse overspeed brake assembly is provided on the other side of the pay-off pulley body along the cable direction; Wherein, the electronically controlled forward overspeed brake assembly and the electronically controlled reverse overspeed brake assembly each include an upper assembly and a lower assembly with two opposite ends of a cable respectively and detachably connected, a pressure sensor is provided in the upper assembly or the lower assembly, and a protective frame is provided outside the upper assembly and the lower assembly; A brake module and a reset component are provided in the lower component. The reset component is provided on a side of the lower component away from the cable and is connected to the pressure sensor signal. The brake module includes a parallelogram connecting rod and a drive spring. A first brake slider is provided on a side of the parallelogram connecting rod close to the cable. One end of the drive spring is provided on the protective frame, and the other end is provided on the parallelogram connecting rod. The elastic direction of the drive spring is toward the direction close to the cable. The first brake slider is provided with a transmission rod, one end of the transmission rod is fixed on the first brake slider, and the other end is in contact with the reset component, and the reset component controls the vertical movement of the transmission rod.

2. The single swing arm type electrically controlled anti-line running pulley according to claim 1, characterized in that: The reset assembly is provided with a trigger tongue, the transmission rod is in contact with the tongue, one end of the tongue in contact with the transmission rod is an inclined surface, and the other end is fixed with a compression spring, and the end of the transmission rod in contact with the tongue is provided with a corresponding sliding inclined surface structure. The reset assembly also includes an electric screw, a protrusion is provided on the upper part of the tongue, and the transmission nut of the electric screw is engaged with the protrusion. The horizontal movement of the tongue can squeeze the sliding inclined surface structure to make the transmission rod move vertically.

3. The single swing arm type electrically controlled anti-line running pulley according to claim 2, characterized in that: A displacement sensor is also provided in the reset assembly for monitoring the displacement of the electric screw.

4. The single swing arm type electrically controlled anti-line running pulley according to claim 3, characterized in that: A control terminal is provided in the lower component, and a programmable control board is integrated in the control terminal. The pressure sensor and the displacement sensor are electrically connected to the control terminal. A safety interlock device is also provided at one end of the electric screw, and the safety interlock device is electrically connected to the control terminal and controls the start and stop of the electric screw.

5. The single swing arm type electrically controlled anti-line running pulley according to claim 1, characterized in that: A brake fitting assembly is provided in the upper assembly, a cable is provided between the brake module and the brake fitting assembly, a second brake slider is provided in the brake fitting assembly, and the cable is clamped between the first brake slider and the second brake slider for braking.

6. The single swing arm type electrically controlled anti-line running pulley according to claim 5, characterized in that: The contact surface between the first brake slider and / or the second brake slider and the cable is provided with a gradient elastic layer, and the gradient elastic layer includes an outer high-elasticity rubber layer and an inner low-elasticity polyurethane layer.

7. The single swing arm type electrically controlled anti-line running pulley according to claim 5, characterized in that: The mating brake assembly includes an adjustment mechanism and an adjustment plate connected to the adjustment mechanism, the adjustment mechanism includes an adjustment slider and a triangular slider, the adjustment slider and the adjustment plate are respectively arranged on two opposite oblique sides of the triangular slider, the triangular slider slides horizontally between the adjustment slider and the adjustment plate so that the distance between the adjustment slider and the adjustment plate changes; the second brake slider is arranged on the adjustment plate.

8. The single swing arm type electrically controlled anti-line running pulley according to claim 7, characterized in that: The adjusting plate is further provided with a plurality of speed measuring pulleys, which abut against the cables.

9. The single swing arm type electrically controlled anti-line running pulley according to claim 1, characterized in that: The opposite ends of the line-releasing pulley body are respectively provided with detachable connecting ribs, and the ends of the two connecting ribs are respectively provided with pluggable fixing ears to connect the electric-controlled forward overspeed braking assembly and the electric-controlled reverse overspeed braking assembly.

10. The single swing arm type electrically controlled anti-line running pulley according to claim 9, characterized in that: The pluggable fixing ear seat is connected to the electric-controlled forward overspeed brake component or the electric-controlled reverse overspeed brake component via a rotatable pin, and the connection angle between the connecting rib and the electric-controlled forward overspeed brake component or the electric-controlled reverse overspeed brake component is adjustable.

Images