Quick replacement device for battery pack of electric tug

Abstract

The invention discloses an electric tug battery pack rapid replacement device, and relates to the technical field of electric tugs, the electric tug battery pack rapid replacement device comprises a replacement mechanism, an auxiliary mechanism is arranged on the replacement mechanism, and the auxiliary mechanism comprises two U-shaped frames, two flow guide pipes, two rectangular blocks, two long plates, four brake shoes and two arc-shaped holes; by arranging the auxiliary mechanism, a motor on the quick battery pack replacement device can be in failure or power failure, when a battery pack is hung on a clamping plate on the quick battery pack replacement device, a screw rod is prevented from rotating passively, and the quick battery pack replacement device can be used for quickly replacing the battery pack, so that the service life of the quick battery pack replacement device is prolonged, and the service life of the quick battery pack replacement device is prolonged. And therefore, the battery pack hung on the clamping plate is prevented from falling off, the use effect of the quick battery pack replacement device is improved, and meanwhile, the use efficiency of the quick battery pack replacement device is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric tugboats, and in particular to a battery pack quick-replacement device for electric tugboats. Background Art

[0002] An electric tugboat is a tugboat that uses electricity as its power source, and the electric tugboat battery pack quick replacement device is a device that can quickly remove the exhausted battery pack from the electric tugboat and replace it with a fully charged battery pack, thereby greatly shortening the "charging" time of the electric tugboat, which can improve the operating efficiency of the electric tugboat in the port.

[0003] In the existing technology, the existing electric tugboat battery pack quick replacement device can allow the electric tugboat battery pack to be quickly replaced during actual use, thereby improving the operating efficiency of the port electric tugboat, but it does not have the function of preventing it from falling. When the motor on the battery pack quick replacement device fails or loses power, and the clamping plate on the battery pack quick replacement device is still mounted with a battery pack, under the action of the gravity of the battery pack or the external lateral force, the internal thread block will cause the screw to passively rotate. At this time, there is a risk of the battery pack mounted on the clamping plate falling. At the same time, the falling battery pack will also cause damage to the hull of the electric tugboat, and may even cause fire, explosion and casualties, which will not only reduce the use effect of the electric tugboat battery pack quick replacement device, but also reduce the use efficiency of the electric tugboat battery pack quick replacement device.

[0004] Therefore, we propose a new electric tugboat battery pack quick replacement device to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a battery pack quick replacement device for an electric tugboat, so as to solve the problem that the existing battery pack quick replacement device for an electric tugboat does not have an anti-drop function. When the motor on the battery pack quick replacement device fails or loses power, and the clamping plate on the battery pack quick replacement device is still mounted with a battery pack, the battery pack mounted on the clamping plate is at risk of falling. At the same time, the dropped battery pack may also cause damage to the hull of the electric tugboat, and may even cause fire, explosion and casualties.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a quick replacement device for an electric tugboat battery pack, comprising a replacement mechanism, wherein the replacement mechanism is provided with an auxiliary mechanism;

[0007] The auxiliary mechanism includes two U-shaped frames, two guide pipes, two rectangular blocks, two long plates, four brake shoes and two arc-shaped holes. Electric push rods are installed on the top of the inner walls of the two U-shaped frames, an auxiliary frame is installed inside each of the U-shaped frames, an auxiliary plate is installed at the bottom of the telescopic end of each electric push rod, two symmetrical blocks with holes are fixed at the bottom of the two rectangular blocks, a long rod is movably sleeved inside each of the blocks with holes, a reset spring is movably sleeved on the outer surface of each of the long rods, a brake pad is bonded to the inner surface of each brake shoe, and steel wire ropes are fixed on opposite sides of the two long plates.

[0008] Preferably, the fixed end of each electric push rod is fixedly sleeved inside each auxiliary frame, the two steel wire ropes are movably sleeved inside the two arc-shaped holes, the two steel wire ropes are movably sleeved inside the two guide pipes, and the four long rods are divided into two groups, and the same end surface of each group of long rods is fixed to the surface of each long board.

[0009] Preferably, an end face of each of the long rods close to each brake piece is respectively fixed to the outer surface of each brake shoe, the four return springs are divided into two groups, and the opposite ends of the return springs in each group are respectively fixed to the opposite sides of the two long plates, the four perforated blocks are divided into two groups, and the opposite sides of the perforated blocks in each group are respectively fixed to the opposite ends of the return springs in each group, and one ends of the two steel ropes are respectively fixed to the bottom of the two auxiliary plates.

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

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

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

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

[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 thread blocks are fixed to the bottom of the two movable seats, a screw is threadedly sleeved inside each of the internal thread blocks, an auxiliary block is fixed to the bottom of the movable block, and the opposite ends of the two screws are respectively installed on the output ends of the two motors.

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

[0016] Preferably, the bottom of the two guide tubes are fixed to the bottom of the inner wall of the auxiliary block, the top of the two guide tubes are fixed through the bottom of the moving block, the two rectangular blocks are fixed on the lower side of the auxiliary block, the two arc holes are opened at the bottom of the inner wall of the auxiliary block, the four gate plates are divided into two groups, and each screw is located between the inner surfaces of each group of gate plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an auxiliary mechanism to prevent the screw from passively rotating when the motor on the battery pack quick replacement device fails or loses power, and the clamping plate on the battery pack quick replacement device is still mounted with a battery pack, thereby preventing the battery pack mounted on the clamping plate from falling off, thereby improving the use effect of the battery pack quick replacement device and also improving the use efficiency of the battery pack quick replacement device. When the battery pack is clamped by the clamping plate and moves in the air, and the motor is damaged or fails, the two long boards can be directly moved toward each other by cooperating with the controller, two second electric push rods, two steel ropes, two guide tubes and two arc holes.

[0019] 2. The present invention then utilizes the cooperation of two long plates, two rectangular blocks and four blocks with holes that move toward each other to compress the four reset springs and move the four long rods at the same time. Then, the cooperation of the four moving long rods and four brake shoes can be used to move the two brake shoes in each group toward each other. Thereafter, the cooperation of the two brake shoes in each group that move toward each other can be used to extrude and fix the corresponding screws, thereby preventing the battery pack mounted on the splint from falling.

[0020] 3. The present invention can quickly replace the dead battery pack on the electric tugboat with a fully charged battery pack by setting a replacement mechanism, that is, it can ensure the operating efficiency of the electric tugboat. When the electric tugboat docks and the battery pack needs to be replaced, the controller, two first servo electric cylinders, a visual sensor, two fixed plates, two connecting blocks, two first guide rails and four first sliders are first used to move the movable plate horizontally to the top of the battery pack of the electric tugboat, and then the second servo electric cylinder, the controller, a plurality of mounting seats and a plurality of limit rods are used to move the movable block.

[0021] 4. The present invention then utilizes the downward moving block to move the four clamps downward at the same time. When the four clamps are close to the electric tugboat battery pack, the two movable seats can be moved toward each other by utilizing the cooperation of the controller, two motors, two perforated plates, two second guide rails, two second sliders, two screws, two internal threaded blocks and auxiliary blocks, thereby achieving the movement of the four clamps. When the clamping ends on the four clamps are respectively docked with the four slots on the top of the battery pack compartment where the electric tugboat battery pack is located, the second servo electric cylinder, the controller and the previous linkage components can be used again to move the clamped battery pack upward.

[0022] 5. The present invention then utilizes the cooperation of the first servo electric cylinder, the controller and the previous linkage components to move the battery pack above the shore, and then utilizes the cooperation of the second servo electric cylinder, the controller and the previous linkage components to move the clamped battery pack downward, and then utilizes the replacement mechanism to clamp the fully charged battery pack again and send it to the position where the battery pack was previously placed on the electric tugboat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a battery pack quick-change device for an electric tugboat according to the present invention;

[0024] Figure 2 It is a partial stereoscopic diagram of a battery pack quick replacement device for an electric tugboat according to the present invention;

[0025] Figure 3A top-down perspective view of a battery pack quick-change device for an electric tugboat according to the present invention;

[0026] Figure 4 A bottom-up perspective view of a battery pack quick-change device for an electric tugboat according to the present invention;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of a first slider, a connecting block and a moving plate of a battery pack quick replacement device for an electric tugboat according to the present invention;

[0028] Figure 6 A quick replacement device for a battery pack of an electric tugboat according to the present invention Figure 4 The enlarged stereogram at A in the middle;

[0029] Figure 7 It is a partially cutaway stereoscopic view of a battery pack quick-change device for an electric tugboat according to the present invention;

[0030] Figure 8 This is a partially cutaway stereoscopic view from another angle of a device for quickly replacing a battery pack for an electric tugboat 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, plate with holes; 119, motor; 120. Internal thread block; 121. Screw; 122. Auxiliary block; 123. Visual sensor; 124. Clamp; 125. Connecting plate; 126. Controller; 2. Auxiliary mechanism; 201. U-shaped frame; 202. Electric push rod; 203. Auxiliary frame; 204. Auxiliary plate; 205. Guide tube; 206. Rectangular block; 207. Block with holes; 208. Long plate; 209. Long rod; 210. Return spring; 211. Brake shoe; 212. Brake piece; 213. Arc hole; 214. Wire rope. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 2 and Figure 6-Figure 8 As shown, the present invention provides a technical solution: a quick replacement device for an electric tugboat battery pack, comprising a replacement mechanism 1, on which an auxiliary mechanism 2 is arranged;

[0034] The auxiliary mechanism 2 includes two U-shaped frames 201, two guide tubes 205, two rectangular blocks 206, two long plates 208, four brake shoes 211 and two arc-shaped holes 213. The top of the inner wall of the two U-shaped frames 201 is equipped with an electric push rod 202, the inside of each U-shaped frame 201 is equipped with an auxiliary frame 203, the bottom of the telescopic end of each electric push rod 202 is equipped with an auxiliary plate 204, the bottom of the two rectangular blocks 206 are fixed with two symmetrical perforated blocks 207, the inside of each perforated block 207 is movably sleeved with a long rod 209, the outer surface of each long rod 209 is movably sleeved with a reset spring 210, and each brake shoe 211 is provided with a plurality of brake shoes 212. The inner surface of each long plate 208 is bonded with a brake pad 212, and a steel wire rope 214 is fixed on the opposite side of each long plate 208. The fixed end of each electric push rod 202 is fixedly sleeved inside each auxiliary frame 203, and the two steel wire ropes 214 are movably sleeved inside the two arc holes 213, and the two steel wire ropes 214 are movably sleeved inside the two guide tubes 205. The four long rods 209 are divided into two groups. The same end face of each group of long rods 209 is fixed to the surface of each long plate 208, and the end face of each long rod 209 close to each brake pad 212 is fixed to the outer surface of each brake shoe 211, and four reset springs 2 10 is divided into two groups, and the opposite ends of the return springs 210 of each group are fixed to the opposite sides of the two long plates 208 respectively. The four perforated blocks 207 are divided into two groups, and the opposite sides of each perforated block 207 are fixed to the opposite ends of each group of return springs 210 respectively. One end of the two steel wire ropes 214 is fixed to the bottom of the two auxiliary plates 204 respectively. The replacement mechanism 1 includes a support frame 101, and the opposite sides of the two perforated plates 118 are equipped with motors 119. The bottoms of the two moving seats 117 are fixed with internal thread blocks 120, and the interior of each internal thread block 120 is threadedly sleeved with a screw 121. The opposite sides of the two moving seats 117 are fixed with internal thread blocks 120, and the opposite sides of the two moving seats 117 are fixed with screws 121. Two clamping plates 124 are fixed on the surface, a connecting plate 125 is fixed on the surface of the support frame 101, and 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, and the bottoms of the two guide pipes 205 are fixed to the bottom of the inner wall of the auxiliary block 122. The tops of the two guide pipes 205 are fixed through the bottom of the moving block 114. The two rectangular blocks 206 are fixed on the lower side of the auxiliary block 122. The two arc holes 213 are opened at the bottom of the inner wall of the auxiliary block 122. The four gate plates 212 are divided into two groups, and each screw 121 is respectively located between the inner surfaces of each group of gate plates 212.

[0035] In this embodiment, when the battery pack is clamped by the clamping plate 124 and moves in the air, 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 of the started electric push rods 202 will drive the corresponding long board 208 to move with the cooperation of the steel wire rope 214, the corresponding guide tube 205 and the corresponding arc hole 213 connected thereto. At this time, the two long boards 208 moving towards each other will drive the two long rods 209 connected thereto to move with the cooperation of the two rectangular blocks 206 and the four perforated blocks 207, and will also make The two return springs 210 connected thereto are compressed, and then each long rod 209 that moves will, with the cooperation of the brake shoe 211 connected thereto, cause the corresponding brake pad 212 to move. When each group of two brake pads 212 that move toward each other move to a point where they cannot move, the screw 121 between the corresponding group of brake pads 212 will not be passively rotated by the internal thread block 120 due to the gravity of the battery pack mounted on the splint 124 or the external lateral force, thereby causing the battery pack mounted on the splint 124 to fall off, thereby improving the safety of the electric tugboat when quickly replacing the battery pack.

[0036] Embodiment 2: According to Figure 1-Figure 8As shown, the replacement mechanism 1 includes a support frame 101, two groups of mounting plates 102 are fixed on the top of the support frame 101, and the number of each group of mounting plates 102 is two, a rectangular bar 103 is fixed between the tops of each group of mounting plates 102, and a group of reinforcing plates 104 is fixed on the top of each mounting plate 102, wherein two groups of reinforcing plates 104 are fixed on one of the rectangular bars 103, and the other two groups of reinforcing plates 104 are fixed on the other rectangular bar 103, a first guide rail 105 is fixed on the top of each rectangular bar 103, and a first servo electric cylinder 106 is installed on the opposite sides of the two rectangular bars 103, and a fixing plate 105 is fixed on each first servo electric cylinder 106 7. The two fixed plates 107 are both mounted on the support frame 101 by screws. The top of each first guide rail 105 is slidably connected to two first sliders 108. A moving plate 110 is installed between the tops of the four first sliders 108. The telescopic ends of the two first servo electric cylinders 106 are both installed with connecting blocks 109. The tops of the two connecting blocks 109 are both fixed to the bottom of the moving plate 110. A second servo electric cylinder 113 is installed on the top of the moving plate 110. The telescopic end of the second servo electric cylinder 113 is movably sleeved inside the top circular hole of the moving plate 110. A moving block 114 is installed on the bottom of the telescopic end of the second servo electric cylinder 113. The top of the moving block 114 A plurality of mounting seats 111 are installed, and a limiting rod 112 is fixed inside each mounting seat 111, and the top of each limiting rod 112 is movable through the bottom of the moving plate 110, and two symmetrical second guide rails 115 are installed on the lower side of the moving block 114, and the bottom end of each second guide rail 115 is slidably connected to two second sliders 116, and the four second sliders 116 are divided into two groups, and a moving seat 117 is fixed between the bottoms of each group of second sliders 116, and a perforated plate 118 is fixed to the front surface of the moving block 114 and the rear surface of the moving block 114, and a motor 119 is installed on the opposite side of the two perforated plates 118, and the output ends of the two motors 119 are movable. The two movable seats 117 are sleeved inside the through holes of the two perforated plates 118, and the bottoms of the two movable seats 117 are fixed with internal thread blocks 120, and the interior of each internal thread block 120 is threadedly sleeved with a screw 121, and the bottom of the movable block 114 is fixed with an auxiliary block 122, and the opposite ends of the two screws 121 are respectively installed with the output ends of the two motors 119, and the opposite ends of the two screws 121 are rotatably embedded in the auxiliary blocks 122, and the bottom of the auxiliary blocks 122 is installed with visual sensors 123, and the opposite sides of the two movable seats 117 are fixed with two clamping plates 124, and the surface of the support frame 101 is fixed with a connecting plate 125, and the surface of the connecting plate 125 is installed with a controller 126.

[0037] In this embodiment, when it is necessary to use the electric tugboat battery pack quick replacement device, the entire device is first installed on the shore of the electric tugboat for easy replacement of the battery pack, and then the controller 126 is connected to the external power supply, and then the controller 126 is turned on, and the basic usage procedures are set. When the electric tugboat docks and the battery pack needs to be replaced, the staff on the ship need to disconnect the battery pack from all electrical equipment or components on the electric tugboat, and 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 visual sensor 123, and then the two first servo electric cylinders 106 that are started at the same time will, with the cooperation of the two fixed plates 107, the two connecting blocks 109 and the four first sliders 108, allow the moving plate 107 to move. 110 moves horizontally on the two first guide rails 105, and the 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 visual sensor 123 will also collect the image of the screen directly below it in real time, and directly transmit it to the controller 126 in the form of an electrical signal, and then display it on the display screen of the controller 126 for the operator to watch. When the moving plate 110 moves to the top of the battery pack of the electric tugboat, the controller 126 is directly used to pause the two first servo electric cylinders 106 at the same time, and then start the second servo electric cylinder 113. At this time, the started second servo electric cylinder 113 will With the cooperation of multiple mounting seats 111 and multiple limiting rods 112, the moving block 114 connected thereto is driven to move vertically downward. At the same time, the moving block 114 moving downward will also drive the components connected thereto (four clamping plates 124, auxiliary blocks 122, two second guide rails 115 and two perforated plates 118), two motors 119, four second sliders 116, two moving seats 117, two screws 121, two internal thread blocks 120, visual sensors 123 and auxiliary mechanism 2 to move. When the four clamping plates 124 are close to the battery pack of the electric tugboat, the controller 126 is used to pause the second servo electric cylinder 113, and then the two motors 119 are started at the same time. At this time, the two started motors 119 will move between the two perforated plates 118, the two second guide rails 115, With the cooperation of the two second sliders 116, the two screw rods 121, the two internal thread blocks 120 and the auxiliary block 122, the two moving seats 117 are moved toward each other, and each moving seat 117 moving toward 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 on the top of the battery pack compartment where the battery pack of the electric tugboat is located, the controller 126 is used to pause the two motors 119 at the same time. Then, the controller 126, the second servo electric cylinder 113 and the previous linkage components are used to lift the clamped battery pack from the electric tugboat until it reaches a position where it cannot be moved upward. Then, the controller 126, the two first servo electric cylinders 106 and the previous linkage components are used to cooperate.Move the clamped battery pack to the top of the shore, then move it down and place it on a flatbed truck on the shore, and then move it. Then use another flatbed truck 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 it and move it up. Then move it horizontally to the top of the electric tugboat, and then move it vertically down until the new battery pack is placed on the electric tugboat. Then let the clamping plate 124 on the replacement mechanism 1 return to the initial position. Finally, connect the new battery pack to all the electrical equipment or components on the battery tugboat and use it. That is, the rapid replacement of the battery pack of the electric tugboat is realized, thereby improving the operating efficiency of the electric tugboat.

[0038] The effect and working principle of the whole mechanism are as follows: when the battery pack quick replacement device for the electric tugboat is needed, the whole device is first installed on the shore of the electric tugboat for convenient battery pack replacement, and then the controller 126 is connected to the external power supply, and then the controller 126 is turned on, and the basic use procedures are set. When the electric tugboat docks and the battery pack needs to be replaced, the staff on board need to disconnect the battery pack from all electrical equipment or components on the electric tugboat, and 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 visual sensor 123, and then the two first servo electric cylinders 106 started at the same time will be on the two fixing plates 107, the two connecting blocks 109 and the four With the cooperation of the first slider 108, the moving plate 110 is moved 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 visual sensor 123 will also collect the image of the picture directly below it in real time, and directly transmit it to the controller 126 in the form of an electrical signal, which will then be displayed on the display screen of the controller 126 for viewing by the operating staff. When the moving plate 110 moves to the top of the battery pack of the electric tugboat, the controller 126 is directly used to pause the two first servo electric cylinders 106 at the same time, and then start the second servo electric cylinder. The second servo electric cylinder 113 is activated at this time, and the moving block 114 connected thereto moves vertically downward with the cooperation of the multiple mounting seats 111 and the multiple limiting rods 112. At the same time, the moving block 114 moving downward will also drive the components connected thereto (four clamping plates 124, auxiliary blocks 122, two second guide rails 115 and two perforated plates 118), two motors 119, four second sliders 116, two moving seats 117, two screws 121, two internal thread blocks 120, visual sensor 123 and auxiliary mechanism 2 to move. When the four clamping plates 124 are close to the battery pack of the electric tugboat, the controller 126 is used to pause the second servo electric cylinder 113, and then the two motors 119 are started at the same time. The two motors 119 will make the two moving seats 117 move towards each other under the cooperation of the two perforated plates 118, the two second guide rails 115, the two second sliders 116, the two screws 121, the two internal thread blocks 120 and the auxiliary block 122, 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 on the top of the battery pack compartment where the battery pack of the electric tugboat is located, the controller 126 is used to pause the two motors 119 at the same time. Then, the controller 126, the second servo electric cylinder 113 and the previous linkage components are used to lift the clamped battery pack from the electric tugboat until it reaches a position where it cannot be moved upward.Then, the controller 126, the two first servo electric cylinders 106 and the previous linkage components are used to move the clamped battery pack to the top of the shore, and then move it down and place it on the flatbed transporter on the shore, and then move it, and then use another flatbed transporter to move the fully charged battery pack to the position where the battery pack (needs to be replaced) was previously placed, and then the replacement mechanism 1 is used to clamp it and move it upward, and then it is moved horizontally to the top of the electric tugboat, and then it is moved vertically downward until the new battery pack is placed on the electric tugboat, and then the clamping plate 124 on the replacement mechanism 1 is reset to the initial position, and finally the new battery pack is connected to all electrical equipment or components on the battery tugboat, and it can be used. When the battery pack is clamped by the clamping plate 124 and moves in the air, 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, and each of the second electric push rods 202 started at this time. Each electric push rod 202 will drive the corresponding long plate 208 to move with the cooperation of the steel wire rope 214, the corresponding guide tube 205 and the corresponding arc hole 213 connected thereto. At this time, the two long plates 208 moving toward each other will drive the two long rods 209 connected thereto to move with the cooperation of the two rectangular blocks 206 and the four perforated blocks 207, and will also cause the two reset springs 210 connected thereto to be compressed. Subsequently, each long rod 209 moving will cause the corresponding brake pad 212 to move with the cooperation of the brake shoe 211 connected thereto. When each group of two brake pads 212 moving toward each other moves to a point where they cannot move, the screw 121 between the corresponding group of brake pads 212 will not be passively rotated by the internal thread block 120 due to the gravity of the battery pack mounted on the clamping plate 124 or the external lateral force, thereby causing the battery pack mounted on the clamping plate 124 to fall off.

[0039] The two first servo electric cylinders 106 , the second servo electric cylinder 113 , the two motors 119 , the visual 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 visual sensor 123, the controller 126 (PLC controller) and the electric push rod 202 are all existing technologies, and their models can be selected according to actual conditions, and no further explanation is given here.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick replacement device for battery packs of electric tugboats, characterized in that: It comprises a replacement mechanism (1), wherein the replacement mechanism (1) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises two U-shaped frames (201), two flow guide tubes (205), two rectangular blocks (206), two long plates (208), four brake shoes (211) and two arc-shaped holes (213); the top of the inner wall of the two U-shaped frames (201) is equipped with an electric push rod (202); the inside of each U-shaped frame (201) is equipped with an auxiliary frame (203); the bottom of the telescopic end of each electric push rod (202) is equipped with an auxiliary The bottom of the two rectangular blocks (206) are fixed with two symmetrical perforated blocks (207), the interior of each perforated block (207) is movably sleeved with a long rod (209), the outer surface of each long rod (209) is movably sleeved with a return spring (210), the inner surface of each brake shoe (211) is bonded with a brake pad (212), and steel wire ropes (214) are fixed to opposite sides of the two long plates (208).

2. The electric tugboat battery pack quick replacement device according to claim 1 is characterized in that: The fixed end of each electric push rod (202) is fixedly sleeved inside each auxiliary frame (203), the two steel wire ropes (214) are movably sleeved inside the two arc-shaped holes (213), the two steel wire ropes (214) are movably sleeved inside the two guide tubes (205), the four long rods (209) are divided into two groups, and the same end surface of each group of long rods (209) is fixed to the surface of each long plate (208).

3. The electric tugboat battery pack quick replacement device according to claim 1 is characterized in that: The end surface of each long rod (209) close to each brake plate (212) is respectively fixed to the outer surface of each brake shoe (211); the four return springs (210) are divided into two groups, and 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, and the opposite sides of each group of perforated blocks (207) are respectively fixed to the opposite ends of each group of return springs (210); and one ends of the two steel ropes (214) are respectively fixed to the bottoms of the two auxiliary plates (204).

4. The electric tugboat battery pack quick replacement device according to claim 1 is characterized in that: The replacement mechanism (1) comprises a support frame (101), two groups of mounting plates (102) are fixed on the top of the support frame (101), and the number of each group of mounting plates (102) is two, a rectangular bar (103) is fixed between the tops of each group of mounting plates (102), a group of reinforcing plates (104) is fixed on the top of each mounting plate (102), two groups of reinforcing plates (104) are fixed on one of the rectangular bars (103), and the other two groups of reinforcing plates (104) are fixed on the other rectangular bar (103), a first guide rail (105) is fixed on the top of each rectangular bar (103), and a first servo electric cylinder (106) is installed on the opposite sides of the two rectangular bars (103).

5. The electric tugboat battery pack quick replacement device according to claim 4 is characterized in that: A fixing plate (107) is fixed on each of the first servo electric cylinders (106), and the two fixing plates (107) are mounted on the support frame (101) by means of screws. The top of each of the first guide rails (105) is slidably connected to two first sliders (108), and a moving plate (110) is mounted between the tops of the four first sliders (108). The telescopic ends of the two first servo electric cylinders (106) are mounted with connecting blocks (109), and the tops of the two connecting blocks (109) are fixed to the bottom of the moving plate (110).

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

7. The electric tugboat battery pack quick replacement device according to claim 6, characterized in that: Two symmetrical second guide rails (115) are installed on the lower side of the moving block (114); the bottom end of each second guide rail (115) is slidably connected to two second sliders (116); the four second sliders (116) are divided into two groups; a moving seat (117) is fixed between the bottoms of each group of second sliders (116); and a perforated plate (118) is fixed to the front surface of the moving block (114) and the rear surface of the moving block (114).

8. The electric tugboat battery pack quick replacement device according to claim 7, characterized in that: Motors (119) are installed on opposite sides of the two perforated plates (118), and the output ends of the two motors (119) are movably sleeved inside the through holes of the two perforated plates (118). Internal thread blocks (120) are fixed at the bottom of the two movable seats (117), and a screw rod (121) is threadedly sleeved inside each of the internal thread blocks (120). An auxiliary block (122) is fixed at the bottom of the movable block (114), and the opposite ends of the two screw rods (121) are respectively installed on the output ends of the two motors (119).

9. The electric tugboat battery pack quick replacement device according to claim 8, characterized in that: The opposite ends of the two screw rods (121) are rotatably embedded in the auxiliary block (122), the bottom of the auxiliary block (122) is installed with a visual sensor (123), the opposite sides of the two moving seats (117) are fixed with two clamping plates (124), the surface of the support frame (101) is fixed with a connecting plate (125), the surface of the connecting plate (125) is installed with a controller (126), and the bottoms of the two U-shaped frames (201) are fixed to the top of the moving block (114).

10. The electric tugboat battery pack quick replacement device according to claim 8, characterized in that: The bottoms of the two flow guide tubes (205) are fixed to the bottom of the inner wall of the auxiliary block (122); the tops of the two flow guide tubes (205) are fixed through the bottom of the moving block (114); the two rectangular blocks (206) are fixed on the lower side of the auxiliary block (122); the two arc-shaped holes (213) are opened at the bottom of the inner wall of the auxiliary block (122); the four gate plates (212) are divided into two groups; each screw rod (121) is respectively located between the inner surfaces of each group of gate plates (212).

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