A rapid replacement device for the battery pack of an electric tugboat

Abstract

The present invention discloses a rapid replacement device for an electric tugboat battery pack, which relates to the technical field of electric tugboats and includes a replacement mechanism. An auxiliary mechanism is arranged on the replacement mechanism. The auxiliary mechanism includes two U-shaped frames, two diversion pipes, two rectangular blocks, two long plates, four brake shoes and two arc-shaped holes. A brake pad is adhesively connected to the inner surface of each brake shoe. Steel wires are fixed on the opposite sides of the two long plates. By setting the auxiliary mechanism, when the motor on the battery pack rapid replacement device fails or loses power and the clamping plate on the battery pack rapid replacement device still mounts a battery pack, the screw can be prevented from rotating passively, thereby avoiding the battery pack mounted on the clamping plate from falling. This not only improves the use effect of the battery pack rapid replacement device, but also improves the use efficiency of the battery pack rapid replacement device.

Description

Technical Field

[0001] The present invention relates to the technical field of electric towing wheels, and particularly to a device for quickly replacing the battery pack of an electric towing wheel. Background Art

[0002] An electric towing wheel is a towing wheel powered by electricity, and a device for quickly replacing the battery pack of an electric towing wheel can quickly remove the battery pack with depleted power from the electric towing wheel and replace it with a fully charged battery pack, thereby greatly shortening the "charging" time of the electric towing wheel, that is, it can improve the operation efficiency of the port electric towing wheel.

[0003] In the existing technology, although the existing device for quickly replacing the battery pack of an electric towing wheel can quickly replace the battery pack of the electric towing wheel and improve the operation efficiency of the port electric towing wheel during actual use, it does not have the function of preventing falling. When the motor on the device for quickly replacing the battery pack of the electric towing wheel fails or loses power, and the clamping plate on the device for quickly replacing the battery pack of the electric towing wheel still mounts the battery pack, at this time, under the action of the gravity of the battery pack or an external lateral force, the internal thread block will cause the screw rod to rotate passively, and at this time, the battery pack mounted on the clamping plate will have the risk of falling. At the same time, the fallen battery pack will also cause damage to the hull of the electric towing wheel, and even cause fire, explosion and casualties. This will not only reduce the use effect of the device for quickly replacing the battery pack of the electric towing wheel, but also reduce the use efficiency of the device for quickly replacing the battery pack of the electric towing wheel.

[0004] Therefore, we propose a new device for quickly replacing the battery pack of an electric towing wheel to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for quickly replacing the battery pack of an electric towing wheel to solve the problem that the existing device for quickly replacing the battery pack of an electric towing wheel does not have the function of preventing falling. When the motor on the device for quickly replacing the battery pack of the electric towing wheel fails or loses power, and the clamping plate on the device for quickly replacing the battery pack of the electric towing wheel still mounts the battery pack, at this time, the battery pack mounted on the clamping plate will have the risk of falling. At the same time, the fallen battery pack will also cause damage to the hull of the electric towing wheel, and even cause fire, explosion and casualties.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for quickly replacing the battery pack of an electric towing wheel, including a replacement mechanism, and an auxiliary mechanism is arranged on the replacement mechanism;

[0007] The auxiliary mechanism includes two U-shaped frames, two diversion pipes, two rectangular blocks, two long plates, four brake shoes and two arc-shaped holes. Electric push rods are installed on the inner tops of the inner walls of the two U-shaped frames. An auxiliary frame is installed inside each U-shaped frame. An auxiliary plate is installed at the bottom of the telescopic end of each electric push rod. Two symmetrically arranged perforated blocks are fixed to the bottom of each of the two rectangular blocks. A long rod is movably sleeved inside each perforated block. A return spring is movably sleeved on the outer surface of each long rod. A brake pad is adhesively connected to the inner surface of each brake shoe. Steel wire ropes are fixed to the opposite sides of the two long plates.

[0008] Preferably, the fixed ends of each of the electric push rods are respectively fixedly sleeved inside each auxiliary frame. The two steel wire ropes are respectively movably sleeved inside the two arc-shaped holes. The two steel wire ropes are respectively movably sleeved inside the two diversion pipes. The four long rods are divided into two groups. The same ends of each group of long rods are respectively fixed to the surfaces of each long plate.

[0009] Preferably, the end faces of each of the long rods close to each brake pad are respectively fixed to the outer surfaces of each brake shoe. The four return springs are divided into two groups. The opposite ends of each group of return springs are respectively fixed to the opposite sides of the two long plates. The four perforated blocks are divided into two groups. The opposite sides of each group of perforated blocks are respectively fixed to the opposite ends of each group of return springs. One ends of the two steel wire ropes are respectively fixed to the bottoms of the two auxiliary plates.

[0010] Preferably, the replacement mechanism includes a support frame. Two groups of mounting plates are fixed to the top of the support frame, and the number of each group of mounting plates is two. A rectangular bar is fixed between the tops of each group of mounting plates. A group of reinforcing plates is fixed to the top of each mounting plate. Two of the groups of reinforcing plates are fixed to one rectangular bar, and the other two groups of reinforcing plates are fixed to the other rectangular bar. A first guide rail is fixed to the top of each rectangular bar. A first servo electric cylinder is installed on the opposite sides of the two rectangular bars.

[0011] Preferably, a fixing plate is fixed to each of the first servo electric cylinders. The two fixing plates are installed on the support frame by screws. Two first sliders are slidably connected to the top ends of each of the first guide rails. A moving plate is installed between the tops of the four first sliders. Connecting blocks are installed at the ends of the telescopic ends of the two first servo electric cylinders. The tops of the two connecting blocks are fixed to the bottom of the moving plate.

[0012] Preferably, a second servo electric cylinder is installed on the top of the moving plate. The telescopic end of the second servo electric cylinder is movably sleeved inside the circular hole on the top of the moving plate. A moving block is installed at the bottom of the telescopic end of the second servo electric cylinder. A plurality of mounting seats are installed on the top of the moving block. A limiting rod is fixed inside each mounting seat, and the top end of each limiting rod movably penetrates through the bottom of the moving plate.

[0013] Preferably, two symmetrically arranged second guide rails are installed on the lower side of the moving block. Two second sliders are slidably connected to the bottom end of each second guide rail. The four second sliders are divided into two groups. A moving seat is fixed between the bottoms of each group of second sliders. A perforated plate is fixed on the front surface and the rear surface of the moving block.

[0014] Preferably, motors are installed on the opposite sides of the two perforated plates, and the output ends of the two motors are movably sleeved inside the through holes of the two perforated plates. Internal threaded blocks are fixed to the bottoms of the two moving seats. A screw rod is threadedly sleeved inside each internal threaded block. An auxiliary block is fixed to the bottom of the moving block. The opposite ends of the two screw rods are respectively installed at the ends of the output ends of the two motors.

[0015] Preferably, the opposite ends of the two screw rods are rotatably embedded on the auxiliary block. A visual sensor is installed at the bottom of the auxiliary block. Two clamping plates are fixed to the opposite sides of the two moving seats. A connecting plate is fixed to the surface of the support frame. A controller is installed on the surface of the connecting plate. The bottoms of the two U-shaped frames are fixed to the top of the moving block.

[0016] Preferably, the bottoms of the two diversion pipes are fixed to the bottom of the inner wall of the auxiliary block. The top ends of the two diversion pipes fixedly penetrate through the bottom of the moving block. The two rectangular blocks are both fixed to the lower side of the auxiliary block. The two arc-shaped holes are both opened at the bottom of the inner wall of the auxiliary block. The four gate plates are divided into two groups, and each screw rod is respectively located between the inner surfaces of each group of gate plates.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By setting the auxiliary mechanism, when a motor on the battery pack quick replacement device fails or loses power, and the clamping plates on the battery pack quick replacement device are still hung with a battery pack, it can prevent the screw rod from being rotated passively, thereby avoiding the battery pack hanging on the clamping plate from falling. This not only improves the use effect of the battery pack quick replacement device, but also improves the use efficiency of the battery pack quick replacement device. When the battery pack is clamped by the clamping plates and moves at a high altitude, and the motor is damaged or fails, at this time, directly using the cooperation of the controller, two second electric push rods, two steel wire ropes, two diversion pipes and two arc-shaped holes can realize the opposite movement of the two long plates.

[0019] 2. Subsequently, by using the cooperation of two long boards moving towards each other, two rectangular blocks and four perforated blocks, the present invention can compress the four return springs, and at the same time move the four long rods simultaneously. Then, by using the cooperation of the four moving long rods and the four brake shoes, the present invention can make each group of two brake pads move towards each other. After that, by using the cooperation of each group of two brake pads moving towards each other, the present invention can make the corresponding screw rod be squeezed and fixed, that is, prevent the battery pack mounted on the clamping plate from falling.

[0020] 3. By setting a replacement mechanism, the present invention can quickly replace the dead battery pack on the electric tow wheel with a fully charged battery pack, which can ensure the operation efficiency of the electric tow wheel. When the electric tow wheel is docked and the battery pack needs to be replaced, first, by using the cooperation of the controller, two first servo electric cylinders, a vision sensor, two fixing plates, two connecting blocks, two first guide rails and four first sliders, the present invention can make the moving plate move horizontally to directly above the battery pack of the electric tow wheel. Subsequently, by using the cooperation of the second servo electric cylinder, the controller, multiple mounting seats and multiple limiting rods, the present invention can make the moving block move.

[0021] 4. Then, by using the cooperation of the descending moving block, the present invention can make the four clamping plates move downward simultaneously. When the four clamping plates approach the battery pack of the electric tow wheel, at this time, by using the cooperation of the controller, two motors, two perforated plates, two second guide rails, two second sliders, two screw rods, two internally threaded blocks and an auxiliary block, the present invention can make the two moving seats move towards each other, and then make the four clamping plates all move. When the clamping ends on the four clamping plates are respectively docked with the four slots at the top of the battery pack compartment where the battery pack of the electric tow wheel is located, at this time, by using the cooperation of the second servo electric cylinder, the controller and the previous linkage components again, the present invention can make the clamped battery pack move upward.

[0022] 5. Subsequently, by using the cooperation of the first servo electric cylinder, the controller and the previous linkage components, the present invention can make the battery pack move above the shore. Then, by using the cooperation of the second servo electric cylinder, the controller and the previous linkage components, the present invention can make the clamped battery pack move downward. After that, by using the replacement mechanism to clamp the fully charged battery pack again and send it to the position where the electric tow wheel previously placed the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of a device for quickly replacing the battery pack of an electric tow wheel according to the present invention;

[0024] Figure 2 is a partial perspective view of a device for quickly replacing the battery pack of an electric tow wheel according to the present invention;

[0025] Figure 3A perspective view from above of a quick battery replacement device for an electric towing wheel according to the present invention;

[0026] Figure 4 A perspective view from below of a quick battery replacement device for an electric towing wheel according to the present invention;

[0027] Figure 5 A schematic three-dimensional structure diagram of the first slider, connecting block and moving plate of a quick battery replacement device for an electric towing wheel according to the present invention;

[0028] Figure 6 For a quick battery replacement device for an electric towing wheel according to the present invention Figure 4 The enlarged three-dimensional view at A in;

[0029] Figure 7 A partially sectional perspective view of a quick battery replacement device for an electric towing wheel according to the present invention;

[0030] Figure 8 Another angle partially sectional perspective view of a quick battery replacement device for an electric towing wheel according to the present invention.

[0031] In the figure: 1. Replacement mechanism; 101. Support frame; 102. Mounting plate; 103. Rectangular bar; 104. Reinforcing plate; 105. First guide rail; 106. First servo electric cylinder; 107. Fixed plate; 108. First slider; 109. Connecting block; 110. Moving plate; 111. Mounting seat; 112. Limiting rod; 113. Second servo electric cylinder; 114. Moving block; 115. Second guide rail; 116. Second slider; 117. Moving seat; 118. Perforated plate; 119. Motor; 120. Internal thread block; 121. Screw; 122. Auxiliary block; 123. Vision sensor; 124. Clamping plate; 125. Connecting plate; 126. Controller; 2. Auxiliary mechanism; 201. U-shaped frame; 202. Electric push rod; 203. Auxiliary frame; 204. Auxiliary plate; 205. Diversion pipe; 206. Rectangular block; 207. Perforated block; 208. Long plate; 209. Long rod; 210. Return spring; 211. Brake shoe; 212. Brake pad; 213. Arc-shaped hole; 214. Steel wire rope. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: Please refer to Figure 2 AndFigures 6 - 8 As shown in the figure, the present invention provides a technical solution: a device for quickly replacing the battery pack of an electric towing wheel, including a replacement mechanism 1, and an auxiliary mechanism 2 is arranged on the replacement mechanism 1;

[0034] The auxiliary mechanism 2 includes two U-shaped frames 201, two diversion tubes 205, two rectangular blocks 206, two long plates 208, four brake shoes 211 and two arc-shaped holes 213. Electric push rods 202 are installed at the top of the inner walls of the two U-shaped frames 201. An auxiliary frame 203 is installed inside each U-shaped frame 201. An auxiliary plate 204 is installed at the bottom of the telescopic end of each electric push rod 202. Two symmetrically arranged perforated blocks 207 are fixed to the bottom of each of the two rectangular blocks 206. A long rod 209 is movably sleeved inside each perforated block 207. A return spring 210 is movably sleeved on the outer surface of each long rod 209. A brake pad 212 is adhesively connected to the inner surface of each brake shoe 211. Steel wire ropes 214 are fixed to the opposite sides of the two long plates 208. The fixed ends of the two electric push rods 202 are respectively fixedly sleeved inside each auxiliary frame 203. The two steel wire ropes 214 are respectively movably sleeved inside the two arc-shaped holes 213. The two steel wire ropes 214 are respectively movably sleeved inside the two diversion tubes 205. The four long rods 209 are divided into two groups. The end faces of the same ends of each group of long rods 209 are respectively fixed to the surfaces of each long plate 208. The end faces of each long rod 209 near each brake pad 212 are respectively fixed to the outer surfaces of each brake shoe 211. The four return springs 210 are divided into two groups. The opposite ends of each group of return springs 210 are respectively fixed to the opposite sides of the two long plates 208. The four perforated blocks 207 are divided into two groups. The opposite sides of each group of perforated blocks 207 are respectively fixed to the opposite ends of each group of return springs 210. One ends of the two steel wire ropes 214 are respectively fixed to the bottoms of the two auxiliary plates 204. The replacement mechanism 1 includes a support frame 101. Motors 119 are installed on the opposite sides of the two perforated plates 118. Inner threaded blocks 120 are fixed to the bottoms of the two moving seats 117. A screw rod 121 is threadedly sleeved inside each inner threaded block 120. Two clamping plates 124 are fixed to the opposite sides of the two moving seats 117. A connecting plate 125 is fixed to the surface of the support frame 101. A controller 126 is installed on the surface of the connecting plate 125. The bottoms of the two U-shaped frames 201 are fixed to the tops of the moving blocks 114. The bottoms of the two diversion tubes 205 are fixed to the bottom of the inner wall of the auxiliary block 122. The tops of the two diversion tubes 205 are fixedly penetrated through the bottoms of the moving blocks 114. The two rectangular blocks 206 are both fixed to the lower side of the auxiliary block 122. The two arc-shaped holes 213 are both opened on the bottom of the inner wall of the auxiliary block 122. The four brake pads 212 are divided into two groups. Each screw rod 121 is respectively located between the inner surfaces of each group of brake pads 212.

[0035] In this embodiment, when the battery pack is clamped by the clamping plate 124 and moves at high altitude, and the motor 119 is damaged or fails, the staff on the shore can use the controller 126 to simultaneously start the two second electric push rods 202. At this time, each started electric push rod 202 will drive the corresponding long plate 208 to move under the cooperation of the steel wire rope 214, the corresponding diversion pipe 205 and the corresponding arc-shaped hole 213 connected thereto. At this time, the two long plates 208 moving towards each other will drive the two long rods 209 connected thereto to move under the cooperation of the two rectangular blocks 206 and the four perforated blocks 207, and at the same time, the two return springs 210 connected thereto will also be compressed. Subsequently, each moving long rod 209 will drive the corresponding brake pad 212 to move under the cooperation of the brake shoe 211 connected thereto. When the two brake pads 212 moving towards each other in each group cannot move anymore, at this time, the screw rod 121 between the corresponding group of brake pads 212 will not be driven to rotate passively by the internal thread block 120 due to the gravity of the battery pack mounted on the clamping plate 124 or the action of an external lateral force, thereby causing the battery pack mounted on the clamping plate 124 to fall. That is, the safety of the electric tow wheel when quickly replacing the battery pack is improved.

[0036] Embodiment 2: According to Figures 1 - 8As shown in the figure, the replacement mechanism 1 includes a support frame 101. At the top of the support frame 101, two groups of mounting plates 102 are fixed, and the number of each group of mounting plates 102 is two. Between the tops of each group of mounting plates 102, a rectangular bar 103 is fixed. At the top of each mounting plate 102, a group of reinforcing plates 104 is fixed. Among them, two groups of reinforcing plates 104 are fixed on one rectangular bar 103, and the other two groups of reinforcing plates 104 are fixed on the other rectangular bar 103. At the top of each rectangular bar 103, a first guide rail 105 is fixed. On the opposite sides of the two rectangular bars 103, a first servo electric cylinder 106 is installed. On each first servo electric cylinder 106, a fixing plate 107 is fixed. The two fixing plates 107 are both installed on the support frame 101 by screws. At the top of each first guide rail 105, two first sliders 108 are slidably connected. Between the tops of the four first sliders 108, a moving plate 110 is installed. At the end of the telescopic end of each of the two first servo electric cylinders 106, a connecting block 109 is installed. The tops of the two connecting blocks 109 are both fixed to the bottom of the moving plate 110. At the top of the moving plate 110, a second servo electric cylinder 113 is installed. The telescopic end of the second servo electric cylinder 113 is movably sleeved inside the circular hole at the top of the moving plate 110. At the bottom of the telescopic end of the second servo electric cylinder 113, a moving block 114 is installed. At the top of the moving block 114, a plurality of mounting seats 111 are installed. Inside each mounting seat 111, a limiting rod 112 is fixed. The top of each limiting rod 112 movably penetrates through the bottom of the moving plate 110. On the lower side of the moving block 114, two symmetric second guide rails 115 are installed. At the bottom of each second guide rail 115, two second sliders 116 are slidably connected. The four second sliders 116 are divided into two groups. Between the bottoms of each group of second sliders 116, a moving seat 117 is fixed. On the front surface and the rear surface of the moving block 114, perforated plates 118 are fixed. On the opposite sides of the two perforated plates 118, motors 119 are installed, and the output ends of the two motors 119 are movably sleeved inside the through holes of the two perforated plates 118. At the bottom of each of the two moving seats 117, an internally threaded block 120 is fixed. Inside each internally threaded block 120, a screw rod 121 is threadedly sleeved. At the bottom of the moving block 114, an auxiliary block 122 is fixed. The opposite ends of the two screw rods 121 are respectively installed at the ends of the output shafts of the two motors 119. The opposite ends of the two screw rods 121 are rotatably embedded on the auxiliary block 122. At the bottom of the auxiliary block 122, a vision sensor 123 is installed. On the opposite sides of the two moving seats 117, two clamping plates 124 are fixed. On the surface of the support frame 101, a connecting plate 125 is fixed. On the surface of the connecting plate 125, a controller 126 is installed.

[0037] In this embodiment, when the electric tow wheel battery pack quick replacement device needs to be used, first install the entire device on the shore where it is convenient to replace the battery pack of the electric tow wheel. Then connect the controller 126 to an external power source. After that, turn on the controller 126 and set up the basic usage program. When the electric tow wheel docks and the battery pack needs to be replaced, the staff on the ship need to disconnect all the electrical equipment or components on the electric tow wheel from the battery pack at this time. Then the staff on the shore can use the controller 126 to simultaneously start the two first servo electric cylinders 106 and turn on the vision sensor 123. Then the two simultaneously started first servo electric cylinders 106 will, with the cooperation of the two fixing plates 107, the two connecting blocks 109 and the four first sliders 108, make the moving plate 110 move horizontally on the two first guide rails 105. At the same time, the moving moving plate 110 will also drive the second servo electric cylinder 113 installed thereon and the components installed on the second servo electric cylinder 113 to move. When the moving plate 110 starts to move, the vision sensor 123 will also collect the picture image directly below it in real time and transmit it to the controller 126 in the form of an electrical signal, and then it will be displayed on the display screen of the controller 126 for the operating staff to view. When the moving plate 110 moves to directly above the electric tow wheel battery pack, use the controller 126 to simultaneously pause the two first servo electric cylinders 106 at this time, and then start the second servo electric cylinder 113. The started second servo electric cylinder 113 will, with the cooperation of the multiple mounting seats 111 and the multiple limiting rods 112, drive the connected moving block 114 to move vertically downward. At the same time, the downward moving moving block 114 will also drive the connected components (the four clamping plates 124, the auxiliary block 122, the two second guide rails 115 and the two perforated plates 118), the two motors 119, the four second sliders 116, the two moving seats 117, the two screw rods 121, the two internally threaded blocks 120, the vision sensor 123 and the auxiliary mechanism 2 to move. When the four clamping plates 124 approach the electric tow wheel battery pack, use the controller 126 to pause the second servo electric cylinder 113 at this time, and then simultaneously start the two motors 119. The started two motors 119 will, with the cooperation of the two perforated plates 118, the two second guide rails 115, the two second sliders 116, the two screw rods 121, the two internally threaded blocks 120 and the auxiliary block 122, make the two moving seats 117 move towards each other. And each moving seat 117 moving towards each other will drive the two clamping plates 124 connected thereto to move. When the clamping ends on the four clamping plates 124 are respectively docked with the four slots at the top of the battery pack compartment where the electric tow wheel battery pack is located, use the controller 126 to simultaneously pause the two motors 119 at this time. Then, with the cooperation of the controller 126, the second servo electric cylinder 113 and the previously linked components, lift the clamped battery pack from the electric tow wheel until it reaches the position where it cannot move up. Then, with the cooperation of the controller 126, the two first servo electric cylinders 106 and the previously linked components,Move the clamped battery pack above the shore, then lower it and place it on the flat transporter on the shore. Then move it again. After that, use another flat transporter to move the fully charged battery pack to the position where the battery pack (to be replaced) was previously placed. Then use the replacement mechanism 1 to clamp and lift it. After that, horizontally move it above the electric tow wheel, and then vertically lower it until the new battery pack is placed on the electric tow wheel. After that, let the clamping plate 124 on the replacement mechanism 1 reset to its initial position. Finally, connect all the electrical devices or components on the new battery pack and the battery tow wheel, and it can be used, that is, the rapid replacement of the electric tow wheel battery pack is realized, thereby improving the operation efficiency of the electric tow wheel.

[0038] The effects achieved by the entire mechanism and its working principle are as follows: When the electric tow wheel battery pack quick replacement device is needed, first install the entire device on the shore where it is convenient to replace the battery pack of the electric tow wheel. Then connect the controller 126 to an external power supply. After that, turn on the controller 126 and set the basic usage program. When the electric tow wheel is docked and the battery pack needs to be replaced, the crew on the ship needs to disconnect all the electrical equipment or components on the electric tow wheel from the battery pack at this time. Then the crew on the shore can use the controller 126 to simultaneously start the two first servo electric cylinders 106 and turn on the vision sensor 123. Subsequently, the two simultaneously started first servo electric cylinders 106, with the cooperation of the two fixed plates 107, the two connecting blocks 109, and the four first sliders 108, will cause the moving plate 110 to move horizontally on the two first guide rails 105. At the same time, the moving moving plate 110 will also drive the second servo electric cylinder 113 installed thereon and the components installed on the second servo electric cylinder 113 to move. When the moving plate 110 starts to move, the vision sensor 123 will also collect the image of the area directly below it in real time and transmit it directly to the controller 126 in the form of an electrical signal, and then it will be displayed on the display screen of the controller 126 for the operating crew to view. When the moving plate 110 moves directly above the electric tow wheel battery pack, use the controller 126 to simultaneously pause the two first servo electric cylinders 106 at this time, and then start the second servo electric cylinder 113. The started second servo electric cylinder 113 will drive the connected moving block 114 to move vertically downward with the cooperation of the multiple mounting seats 111 and the multiple limiting rods 112. At the same time, the downward moving moving block 114 will also drive the connected components (the four clamping plates 124, the auxiliary block 122, the two second guide rails 115, and the two perforated plates 118), the two motors 119, the four second sliders 116, the two moving seats 117, the two screw rods 121, the two internally threaded blocks 120, the vision sensor 123, and the auxiliary mechanism 2 to move. When the four clamping plates 124 approach the electric tow wheel battery pack, use the controller 126 to pause the second servo electric cylinder 113 at this time, and then simultaneously start the two motors 119. The started two motors 119 will cause the two moving seats 117 to move towards each other with the cooperation of the two perforated plates 118, the two second guide rails 115, the two second sliders 116, the two screw rods 121, the two internally threaded blocks 120, and the auxiliary block 122. Each of the moving moving seats 117 will drive the two clamping plates 124 connected thereto to move. When the clamping ends on the four clamping plates 124 are respectively docked with the four slots at the top of the battery pack compartment where the electric tow wheel battery pack is located, use the controller 126 to simultaneously pause the two motors 119 at this time, and then use the controller 126, the second servo electric cylinder 113, and the cooperation of the previously linked components to lift the clamped battery pack from the electric tow wheel until it reaches the position where it cannot move upward.Then, by using the cooperation of the controller 126, the two first servo electric cylinders 106 and the previous linkage components, the clamped battery pack is moved above the shore, and then it is lowered and placed on the flat transporter on the shore. Then it is moved again. After that, another flat transporter is used to move the fully charged battery pack to the position where the battery pack (to be replaced) was previously placed. Then, the replacement mechanism 1 is used to clamp and lift it. After that, it is horizontally moved above the electric tow wheel, and then it is vertically lowered until the new battery pack is placed on the electric tow wheel. After that, the clamping plate 124 on the replacement mechanism 1 is reset to the initial position. Finally, all the electrical devices or components on the new battery pack and the battery tow wheel are connected, and it can be used. When the battery pack is clamped by the clamping plate 124 and moves at a high altitude, and the motor 119 is damaged or fails, at this time, the staff on the shore can use the controller 126 to simultaneously start the two second electric push rods 202. When each started electric push rod 202 operates, it will drive the corresponding long plate 208 to move under the cooperation of the steel wire rope 214, the corresponding diversion pipe 205 and the corresponding arc-shaped hole 213 connected to it. At this time, the two long plates 208 moving towards each other will drive the two long rods 209 connected to them to move under the cooperation of the two rectangular blocks 206 and the four perforated blocks 207, and at the same time, the two return springs 210 connected to them will be compressed. Subsequently, each moving long rod 209 will drive the corresponding brake pad 212 to move under the cooperation of the brake shoe 211 connected to it. When the two brake pads 212 in each group moving towards each other cannot move anymore, at this time, the screw rod 121 between the corresponding group of brake pads 212 will not be driven to rotate passively by the internal thread block 120 due to the gravity of the battery pack mounted on the clamping plate 124 or the action of an external lateral force, thereby causing the battery pack mounted on the clamping plate 124 to fall.

[0039] Among them, the two first servo electric cylinders 106, the second servo electric cylinder 113, the two motors 119, the vision sensor 123 and the two electric push rods 202 are all electrically connected to the controller 126.

[0040] Among them, the first servo electric cylinder 106, the second servo electric cylinder 113, the motor 119, the vision sensor 123, the controller 126 (PLC controller) and the electric push rod 202 are all prior arts, and their models can be selected according to actual situations and will not be elaborated here.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rapid replacement device for an electric tugboat battery pack, characterized in that: It includes a replacement mechanism (1), and an auxiliary mechanism (2) is arranged on the replacement mechanism (1); The auxiliary mechanism (2) includes two U-shaped frames (201), two diversion pipes (205), two rectangular blocks (206), two long plates (208), four brake shoes (211) and two arc-shaped holes (213). Electric push rods (202) are installed on the inner wall tops of the two U-shaped frames (201). An auxiliary frame (203) is installed inside each U-shaped frame (201). An auxiliary plate (204) is installed at the bottom of the telescopic end of each electric push rod (202). Two symmetrically arranged perforated blocks (207) are fixed to the bottom of each rectangular block (206). A long rod (209) is movably sleeved inside each perforated block (207). A return spring (210) is movably sleeved on the outer surface of each long rod (209). A brake pad (212) is adhesively connected to the inner surface of each brake shoe (211). Steel wires (214) are fixed to the opposite sides of the two long plates (208). The four long rods (209) are divided into two groups. The end faces of the long rods (209) in each group at the same end are respectively fixed to the surfaces of each long plate (208). The end face of each long rod (209) close to each brake pad (212) is respectively fixed to the outer surface of each brake shoe (211). One ends of the two steel wires (214) are respectively fixed to the bottoms of the two auxiliary plates (204); The replacement mechanism (1) includes a support frame (101). At the top of the support frame (101), two groups of mounting plates (102) are fixed, and the number of each group of mounting plates (102) is two. Between the tops of each group of mounting plates (102), a rectangular bar (103) is fixed. On the opposite sides of the two rectangular bars (103), a first servo electric cylinder (106) is installed. At the end of the telescopic end of the two first servo electric cylinders (106), a connecting block (109) is installed. The tops of the two connecting blocks (109) are fixed to the bottom of a moving plate (110); on the top of the moving plate (110), a second servo electric cylinder (113) is installed. At the bottom of the telescopic end of the second servo electric cylinder (113), a moving block (114) is installed. On the lower side of the moving block (114), two symmetric second guide rails (115) are installed. At the bottom end of each second guide rail (115), two second sliders (116) are slidably connected. The four second sliders (116) are divided into two groups. Between the bottoms of each group of second sliders (116), a moving seat (117) is fixed. On the front surface and the rear surface of the moving block (114), a perforated plate (118) is fixed. On the opposite sides of the two perforated plates (118), a motor (119) is installed, and the output ends of the two motors (119) are movably sleeved inside the through holes of the two perforated plates (118). At the bottom of each of the two moving seats (117), an internally threaded block (120) is fixed. Inside each internally threaded block (120), a screw rod (121) is threadedly sleeved. The opposite ends of the two screw rods (121) are respectively installed at the ends of the output ends of the two motors (119). On the opposite sides of the two moving seats (117), two clamping plates (124) are fixed. The four brake pads (212) are divided into two groups. Each screw rod (121) is respectively located between the inner surfaces of each group of brake pads (212).

2. The quick replacement device for the electric tugboat battery pack according to claim 1, characterized in that: The fixed end of each electric push rod (202) is respectively fixedly sleeved inside each auxiliary frame (203). The two steel wire ropes (214) are respectively movably sleeved inside the two arc-shaped holes (213). The two steel wire ropes (214) are respectively movably sleeved inside the two diversion pipes (205).

3. The quick replacement device for the electric tow wheel battery pack according to claim 1, characterized in that: The four return springs (210) are divided into two groups. The opposite ends of each group of return springs (210) are respectively fixed to the opposite sides of the two long plates (208). The four perforated blocks (207) are divided into two groups. The opposite sides of each group of perforated blocks (207) are respectively fixed to the opposite ends of each group of return springs (210).

4. The quick replacement device for the electric tugboat battery pack according to claim 1, wherein: At the top of each mounting plate (102), a group of reinforcing plates (104) is fixed. Two of the two groups of reinforcing plates (104) are fixed to one of the rectangular bars (103), and the other two groups of reinforcing plates (104) are fixed to the other rectangular bar (103). At the top of each rectangular bar (103), a first guide rail (105) is fixed.

5. The rapid replacement device for the electric tow wheel battery pack according to claim 4, characterized in that: A fixing plate (107) is fixed on each of the first servo electric cylinders (106). The two fixing plates (107) are both installed on the support frame (101) by screws. Two first sliders (108) are slidably connected to the top end of each of the first guide rails (105). A moving plate (110) is installed between the tops of the four first sliders (108).

6. The quick replacement device for the electric tugboat battery pack according to claim 5, wherein: The telescopic end of the second servo electric cylinder (113) is movably sleeved inside the circular hole at the top of the moving plate (110). A plurality of mounting seats (111) are installed on the top of the moving block (114). A limiting rod (112) is fixed inside each of the mounting seats (111). The top end of each of the limiting rods (112) movably penetrates through the bottom of the moving plate (110).

7. The quick replacement device for the electric tugboat battery pack according to claim 1, wherein: An auxiliary block (122) is fixed to the bottom of the moving block (114).

8. The quick replacement device for the electric tugboat battery pack according to claim 7, characterized in that: The opposite ends of the two screw rods (121) are rotatably embedded in the auxiliary block (122). A vision sensor (123) is installed at the bottom of the auxiliary block (122). A connecting plate (125) is fixed to the surface of the support frame (101). A controller (126) is installed on the surface of the connecting plate (125). The bottoms of the two U-shaped frames (201) are fixed to the top of the moving block (114).

9. The quick replacement device for the electric tugboat battery pack according to claim 7, characterized in that: The bottoms of the two flow guide pipes (205) are fixed to the bottom inner wall of the auxiliary block (122). The top ends of the two flow guide pipes (205) are fixedly penetrated through the bottom of the moving block (114). The two rectangular blocks (206) are both fixed to the lower side of the auxiliary block (122). The two arc-shaped holes (213) are both opened in the bottom inner wall of the auxiliary block (122).

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