Conveyance system for a marine container battery platform and method of operation thereof

Abstract

The application discloses a battery platform conveying system and an operating method thereof. The conveying system comprises an electric trailer, a connecting device, a battery platform, a sensing assembly and a control system; the electric trailer is automatically connected and separated with the battery platform through the connecting device; the control system is fixedly installed at the rear of the electric trailer; a camera is arranged at the upper end of the rear of the electric trailer; a mechanical interface connected with the connecting device is arranged at the lower end of the rear of the electric trailer, and the camera is used for assisting the electric trailer and the battery platform to dock; one end of the connecting device is connected with the mechanical interface at the lower end of the rear of the electric trailer, and the other end of the connecting device is connected with the mechanical interface at the lower end of the front of the battery platform; the connecting device has the functions of quickly connecting, locking and separating the electric trailer and the battery platform; the connecting device comprises an access assembly connected with the mechanical interface at the lower end of the rear of the electric trailer and a locking assembly connected with the mechanical interface at the lower end of the front of the battery platform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of box battery platform conveying for ships, in particular to a box battery platform conveying system for ships and an operation method thereof. BACKGROUND

[0002] With the energy shortage and environmental protection requirements worldwide, environmentally friendly and energy-saving container battery platforms have become the development direction of the field of ship power. However, there are still some limitations in the process of conveying container battery platforms by using electric tow heads, including the insufficient flexibility of the connection structure between the existing vehicles and the battery platforms, the low degree of automation, and the inability to meet the problems of narrow space and difficult turning at the ship wharf, which affects the use efficiency of the tow head.

[0003] To solve the above technical problems, the prior art proposes a scheme for replacing the battery of an electric vehicle. In the battery replacement scheme, there are several outstanding problems. In the Chinese patent application with the application number CN201920721103.5 and the name of a connector for connecting a coupler of a railway vehicle, a coupler connection is proposed. The coupler is a key component of the vehicle, which has an important influence on the dynamics performance and running quality of the vehicle. However, the coupler is a rigid connection with poor buffering performance. Some couplers have a buffering structure, but the stiffness adjustment is relatively single, lacks variable stiffness, and it is difficult to meet the requirements of starting with small stiffness and good buffering performance under large load. In the Chinese patent application with the application number CN201710300002.6 and the name of a method and device for mobile battery replacement, a mobile battery replacement vehicle for aircraft carriers is proposed, which helps to improve the efficiency of battery replacement services, but the patent does not provide a quick connection structure and a quick fixing structure. In summary, the following problems exist: 1) the traditional coupler connection has insufficient flexibility and poor buffering performance in connecting vehicles with a front vehicle body having a cab and a rear vehicle body having a cargo platform, and the stiffness adjustment is relatively single; 2) manual operation is time-consuming and labor-intensive, and cannot realize automatic and quick connection and fixing of the vehicle head and the battery platform. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a container battery platform conveying system for ships with high automation.

[0005] To solve the above technical problems, the technical solution adopted by the present application is as follows: a battery platform conveying system includes an electric tow head, a connecting device, a battery platform, a sensor assembly, and a control system; the electric tow head and the battery platform are automatically connected and separated through the connecting device;

[0006] The rear of the electric tow head is fixedly provided with a control system, a camera is arranged at the upper rear end of the electric tow head, and a mechanical interface connected with the connecting device is arranged at the lower rear end of the electric tow head, and the camera is used to assist the electric tow head and the battery platform to dock; one end of the connecting device is connected with the mechanical interface at the lower rear end of the electric tow head, and the other end of the connecting device is connected with the mechanical interface at the lower front end of the battery platform, and the connecting device has the functions of quickly connecting, locking and disconnecting the electric tow head and the battery platform; the battery platform comprises a battery box and an assembly and a positioning bearing plate, and the positioning bearing plate is used for placing, positioning and bearing the battery box and the assembly; the control system is provided with an analysis and calculation module, an interactive module and a display device, and is used for automatic, quick connection, locking and disconnection process control and information display of the electric tow head and the battery platform;

[0007] The connecting device comprises an access assembly connected with the mechanical interface at the lower rear end of the electric tow head and a locking assembly connected with the mechanical interface at the lower front end of the battery platform;

[0008] The access assembly comprises an access body connected with the mechanical interface at the lower rear end of the electric tow head, an elastic body bin with an upper opening is arranged in the access body, a locking pin is fixedly connected with the upper part of the elastic body, the lower part of the elastic body is fixedly connected with the elastic body bin at the bottom of the access body, and the side of the locking pin away from the electric tow head is inclined from top to bottom and away from the electric tow head;

[0009] The press pin block is movably arranged on the side of the locking pin away from the electric tow head in the elastic body bin, the side of the press pin block facing the electric tow head is an inclined surface with the same inclination as the side of the locking pin away from the electric tow head; the first electric push cylinder has a fixed stroke, and the first electric push cylinder drives the press pin block to move towards the locking pin to press down the locking pin, so as to separate the access assembly and the locking assembly;

[0010] The locking assembly comprises a locking body rotatably arranged on the positioning bearing plate, the locking body is provided with a lateral opening to accommodate a plug-in slot of the access body of the access assembly, a blocking plate is movably arranged on the locking body at the slot opening of the plug-in slot, and a second electric push cylinder is arranged on the locking body to drive the blocking plate to block or avoid the slot opening of the plug-in slot; the locking body is provided with a locking slot above the plug-in slot, the locking slot penetrates through the plug-in slot and cooperates with the locking pin;

[0011] The sensor assembly comprises a pressure sensor and a position sensor connected to the control system through signal lines, the pressure sensor is arranged at the top of the locking groove, and the position sensor is arranged at the position where the pressure pin block extends, a pair of horizontal guide rails are fixedly arranged on the locking body of the locking assembly, a guide column for guiding the access body of the access assembly after being pulled out is movably arranged on the horizontal guide rail, a ball guide sliding groove is arranged on the inner side of the guide column, a plurality of rolling bodies are embedded in the ball guide sliding groove, the horizontal force F applied to the battery platform by the electric towing head through the connecting device when the electric towing head is connected with the battery platform can be compressed by the elastic body connected with the locking pin, the angle between the inclined surface of the locking pin and the horizontal direction is β, and the horizontal force F during the plugging process of the electric towing head and the battery platform needs to meet the following conditions:

[0012]

[0013] Wherein, Fp is the rolling resistance of the rolling body on the guide column, f is the rolling resistance coefficient of the rolling body on the guide column, W is the total weight of the battery platform, K is the elastic stiffness of the elastic body, and Fμ is the friction force between the pressure pin block and the inclined surface of the locking pin.

[0014] As a preferred scheme, the access body of the access assembly is provided with a ball guide sliding groove matched with the rolling body on both sides.

[0015] As a preferred scheme, the sensor assembly further comprises a tactile sensor connected to the control system through a signal line, and the tactile sensor is arranged on the inner side of the end portion of the guide column.

[0016] As a preferred scheme, the access body of the access assembly is provided with a horizontally arranged guide groove, and the pressure pin block is movably clamped in the guide groove through the connecting piece arranged thereon.

[0017] As a preferred scheme, the positioning bearing plate is provided with a vertical shaft, the locking body of the locking assembly is movably sleeved on the vertical shaft, the positioning bearing plate is provided with a through upper and lower circular arc guide groove, the center of the circular arc guide groove is consistent with the center of the vertical shaft arranged on the locking body of the locking assembly, the rotary guide piece is arranged on the locking body of the locking assembly, and the upper portion of the rotary guide piece extends into the circular arc guide groove.

[0018] Another technical problem to be solved by the application is to provide an operation method of the above-mentioned marine container battery platform conveying system.

[0019] To solve the above-mentioned technical problem, the technical scheme adopted by the application is as follows: An operation method of a marine container battery platform conveying system, comprising the following steps:

[0020] Step one: electric towing head and battery platform fast access

[0021] S1: Access preparation, pull out the guide column; start the second electric push cylinder, lift the blocking plate, and start the electric tow head;

[0022] S2: Access operation, slowly approach the access assembly to the locking assembly on the battery platform, and align and position through the camera;

[0023] S3: When the tactile sensor sends an accurate positioning signal, continue to operate the electric tow head to gradually move the access assembly along the guide column through the connector slot to the locking slot;

[0024] S4: When the control system receives the access signal of the pressure sensor triggered by the locking pin, stop the access operation;

[0025] S5: Operate the electric tow head to tow the battery platform to the destination;

[0026] S6: Remove the battery box and assembly;

[0027] Step two: the electric tow head is quickly separated from the battery platform

[0028] Step1: Start the first electric push cylinder to reach the specified stroke;

[0029] Step2: The control system receives the position sensor signal triggered by the pressure pin block, and the first electric push cylinder stops moving;

[0030] Step3: Operate the electric tow head to move out of the access assembly;

[0031] Step4: When the control system receives the tactile sensor signal, the access assembly is separated from the locking assembly, that is, the electric tow head is quickly separated from the battery platform;

[0032] Step5: Control the second electric push cylinder to lower the blocking plate and retract the guide column;

[0033] Step three: place the electric tow head at the specified position and turn off the power;

[0034] Step four: end.

[0035] The beneficial effects of the present application are:

[0036] The system enables the electric tow head and the battery platform quick connection device to have high positioning accuracy, high connection efficiency, good buffering performance, convenient stiffness adjustment, reduced processing difficulty and ensured stability during transportation;

[0037] The system adopts an electric tow head and battery platform quick connection device integrated with automatic access, positioning and locking, has high flexibility, can simultaneously achieve quick connection and fixation of the electric tow head and the battery platform, and gives information prompts and operation constraints through the sensor assembly to improve system working reliability and safety;

[0038] The system is divided into access assembly and locking assembly by the connecting device, which is respectively installed on the electric tow head and the battery platform, to ensure the one-to-many relationship between the electric tow head and the battery platform, meet the use and maintenance requirements of the battery platform, and reduce the cost of use and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 The composition diagram of the present application;

[0040] Figure 2 The arrangement schematic diagram of the present application;

[0041] Figure 3 The structure composition diagram of the connecting device of the present application;

[0042] Figure 4 The cross-sectional view of the locking pin in the access assembly of the present application;

[0043] Figure 5 The top view of the positioning bearing plate part in the access assembly of the present application;

[0044] Figure 6 The schematic diagram (part) of the locking state of the access assembly of the present application;

[0045] Figure 7 The flow chart of the operation method of the conveying system of the present application.

[0046] In the figure: 100-electric tow head, 200-connecting device, 300-battery platform, 400-sensor assembly and 500-control system; 11-camera; 21-access assembly, 22-locking assembly; 31-battery box and assembly, 32-positioning bearing plate; 41-tactile sensor, 42-pressure sensor, 43-position sensor;

[0047] 211-locking pin, 212-elastic body, 213-elastic body warehouse, 214-pressing pin block, 215-first electric push cylinder; 221-guiding column, 222-horizontal guide rail, 223-blocking plate, 224-second electric push cylinder, 225-plug-in slot, 226-locking slot, 227-rotary guide, 228-rotation shaft. DETAILED DESCRIPTION

[0048] The specific implementation scheme of the present application will be described in detail below in combination with the drawings.

[0049] As Figures 1-6 shown, a battery platform conveying system includes an electric tow head 100, a connecting device 200, a battery platform 300, a sensor assembly 400 and a control system 500; the electric tow head 100 and the battery platform 300 are automatically connected and separated through the connecting device 200;

[0050] The control system 500 is fixedly installed at the rear of the electric trailing head 100, a camera 11 is arranged at the upper rear end of the electric trailing head 100, and a mechanical interface connected with the connecting device 200 is arranged at the lower rear end of the electric trailing head 100, the camera 11 is used to assist the electric trailing head and the battery platform to dock; one end of the connecting device 200 is connected with the mechanical interface at the lower rear end of the electric trailing head 100, the other end of the connecting device 200 is connected with the mechanical interface at the lower front end of the battery platform 300, the connecting device 200 has the functions of quickly connecting, locking and separating the electric trailing head 100 and the battery platform 300; the battery platform 300 comprises a battery box and an assembly 31 and a positioning bearing plate 32, the positioning bearing plate 32 is used for placing, positioning and bearing the battery box and the assembly 31; the control system 500 is provided with an analysis and calculation module, an interactive module and a display device, and is used for the process control and information display of automatic, quick connection, locking and separation of the electric trailing head 100 and the battery platform 300.

[0051] The connecting device 200 comprises an access assembly 21 connected with the mechanical interface at the lower rear end of the electric trailing head 100 and a locking assembly 22 connected with the mechanical interface at the lower front end of the battery platform 300.

[0052] The access assembly 21 comprises an access body connected with the mechanical interface at the lower rear end of the electric trailing head 100, an elastic body bin 213 with an upper opening is arranged in the access body, a locking pin 211 is fixedly connected with the upper part of an elastic body 212, the lower part of the elastic body 212 is fixedly connected with the elastic body bin 213 arranged in the access body, and the side of the locking pin 211 away from the electric trailing head 100 is inclined from top to bottom.

[0053] A pressing pin block 214 is movably arranged in the elastic body bin 213 at the side of the locking pin away from the electric trailing head 100, the side of the pressing pin block 214 facing the electric trailing head 100 is an inclined surface with the same inclination as the side of the locking pin 211 away from the electric trailing head 100; an electric push cylinder 215 is provided with a fixed stroke, the electric push cylinder 215 drives the pressing pin block 214 to move towards the locking pin to press the locking pin 214 down, thereby separating the access assembly and the locking assembly;

[0054] The locking assembly 22 comprises a locking body rotatably arranged on the positioning bearing plate 32, a rotating shaft 228 is arranged vertically on the positioning bearing plate 32, the locking body of the locking assembly is movably sleeved on the rotating shaft 228, an upper and lower through circular arc-shaped guide groove is arranged on the positioning bearing plate 32, the center of the circular arc-shaped guide groove is consistent with the center of the rotating shaft 228 arranged on the locking body of the locking assembly, a rotating guide piece 227 is arranged on the locking body of the locking assembly, and the upper part of the rotating guide piece 227 extends into the circular arc-shaped guide groove. Even if the center of the access assembly 21 and the locking assembly 22 has a certain offset, the smooth realization of the access operation can also be ensured.

[0055] The locking body is provided with a lateral opening to accommodate the plug-in slot 225 of the access body of the access assembly, and the locking body is movably provided with a blocking plate 223 at the slot opening of the plug-in slot 225 and an electric push cylinder 224 for driving the blocking plate 223 to block or avoid the slot opening of the plug-in slot 225; the locking body is provided above the plug-in slot 225 with a locking slot 226 which is through the plug-in slot 225 and cooperates with the locking pin; the blocking plate 223 is used to protect the plug-in slot 225 and the locking slot 226, and the electric push cylinder 224 is used to lift the blocking plate 223 when the access assembly 21 is accessed, so as to prevent the blocking plate from hindering the access operation of the connecting device 02.

[0056] The locking body of the locking assembly is fixedly provided with a pair of horizontal guide rails 222, and the horizontal guide rails are movably provided with guide columns 221 which guide the access body of the access assembly 21 when pulled out. The inner side of the guide column 221 is provided with a ball guide sliding groove, and a plurality of rolling bodies are embedded in the ball guide sliding groove. The guide column 221 is retracted in the non-working state. The two sides of the access body of the access assembly 21 are respectively provided with ball guide sliding grooves matched with the rolling bodies. The access body of the access assembly 21 is provided with a horizontally arranged guide slot, and the press pin block 214 is movably clamped in the guide slot through the connecting member arranged thereon.

[0057] The sensor assembly 400 includes a tactile sensor 41, a pressure sensor 42 and a position sensor 43 connected to the control system 500 through signal lines. The tactile sensor 41 is arranged at the inner side of the end of a guide column 221, the pressure sensor 42 is arranged at the top of the locking slot 226, and the position sensor 43 is arranged at the position where the press pin block 214 extends.

[0058] When the electric drag head 100 is connected with the battery platform 300, the horizontal force applied by the electric drag head to the battery platform through the connecting device 200 is F, the elastic body 212 connected by the locking pin 211 can be compressed by an amount h, and the angle between the inclined surface of the locking pin and the horizontal direction is β; during the plug-in process of the electric drag head 100 and the battery platform 300, the horizontal force F needs to satisfy the following conditions:

[0059]

[0060] Wherein, Fp is the rolling resistance of the rolling body on the guide column 221, f is the rolling resistance coefficient of the rolling body on the guide column 221, W is the total weight of the battery platform; K is the elastic stiffness of the elastic body; Fμ is the friction force between the press pin block and the inclined surface of the locking pin.

[0061] When the access assembly 21 needs to access the locking assembly 22, the electric trailer 100 is retreated, the operator uses the camera 11 installed on the upper end of the electric trailer to perform coarse positioning, and then uses the touch sensor 41 to perform accurate positioning; during the access process, when the locking pin 211 of the access assembly reaches the locking groove 226, the locking pin enters the locking groove under the action of the elastic body, and the control system 500 receives the locking signal sent by the pressure sensor 42, so that the access assembly and the locking assembly are locked;

[0062] When the access assembly 21 needs to be separated from the locking assembly 22, the pressing pin block applies a force to the locking pin under the action of the electric push cylinder 215, so that the locking pin can overcome the force of the elastic body and move downward; when the control system 500 receives the separation signal sent by the pressure sensor 42, the access assembly 21 and the locking assembly 22 are separated.

[0063] The access and separation of the access assembly 21 and the locking assembly 22 can be judged by the signal of the pressure sensor 42.

[0064] The stroke L of the electric push cylinder 215 is: L = h / sin(β);

[0065] As shown in Figure 7 An operation method of the above-mentioned marine container battery platform conveying system, comprising the following steps:

[0066] Step one: fast access of the electric trailer to the battery platform

[0067] S1: access preparation, pull out the guide column 221; start the second electric push cylinder 224 to lift the blocking plate 223, and start the electric trailer 100;

[0068] S2: access operation, slowly approach the locking assembly 22 on the battery platform 300 through the access assembly 21, and align and position through the camera 11;

[0069] S3: when the touch sensor 41 sends an accurate positioning signal, continue to operate the electric trailer to gradually move the access assembly along the guide column 221 to the locking groove 226 through the plug-in groove 225;

[0070] S4: when the control system 500 receives the access signal of the pressure sensor 42 triggered by the locking pin 211, stop the access operation;

[0071] S5: operate the electric trailer to drag the battery platform to the destination;

[0072] S6: unload the battery box and the assembly 31;

[0073] Step two: fast separation of the electric trailer from the battery platform

[0074] Step1: Start the first electric push cylinder 215, reach the specified stroke;

[0075] Step2: The control system 500 receives the position sensor 43 signal triggered by the pressure pin block 214, and the first electric push cylinder 215 stops moving;

[0076] Step3: Move the electric tow head out of the access assembly;

[0077] Step4: When the control system accepts the tactile sensor 41 signal, the access assembly is separated from the locking assembly, that is, the electric tow head is quickly separated from the battery platform;

[0078] Step5: Control the second electric push cylinder 224, lower the blocking plate 223, and retract the guide column 221;

[0079] Step three: Place the electric tow head at the designated position and turn off the power;

[0080] Step four: End.

[0081] The above embodiments only exemplarily illustrate the principles and effects of the present application, and part of the applied embodiments, and are not used to limit the present application; it should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. A battery platform conveyor system characterized by: The electrically-powered trailing head, the connecting device, the battery platform, the sensor assembly and the control system are included; the electrically-powered trailing head is automatically connected and separated with the battery platform through the connecting device; The control system is fixedly installed at the rear of the electrically-powered trailing head, a camera is arranged at the upper rear end of the electrically-powered trailing head, a mechanical interface connected with the connecting device is arranged at the lower rear end of the electrically-powered trailing head, and the camera is used to assist the electrically-powered trailing head and the battery platform to be docked; one end of the connecting device is connected with the mechanical interface at the lower rear end of the electrically-powered trailing head, the other end of the connecting device is connected with the mechanical interface at the lower front end of the battery platform, and the connecting device has the functions of quickly connecting, locking and separating the electrically-powered trailing head and the battery platform; the battery platform includes a battery box and an assembly and a positioning bearing plate, and the positioning bearing plate is used for the placement, positioning and bearing of the battery box and the assembly; the control system is provided with an analysis and calculation module, an interactive module and a display device, and is used for the automatic, quick connection, locking and separation process control and information display of the electrically-powered trailing head and the battery platform; The connecting device includes an access assembly connected with the mechanical interface at the lower rear end of the electrically-powered trailing head and a locking assembly connected with the mechanical interface at the lower front end of the battery platform; The access assembly includes an access body connected with the mechanical interface at the lower rear end of the electrically-powered trailing head, an elastic body compartment with an upper opening is arranged in the access body, a locking pin is fixedly connected with the upper part of the elastic body, the lower part of the elastic body is fixedly connected with the elastic body compartment at the bottom of the access body, and the side of the locking pin away from the electrically-powered trailing head is inclined; A press pin block is movably arranged on the side of the locking pin away from the electrically-powered trailing head in the elastic body compartment, the side of the press pin block facing the electrically-powered trailing head is an inclined surface with the same inclination as the side of the locking pin away from the electrically-powered trailing head; the first electric push cylinder has a fixed stroke, and the first electric push cylinder drives the press pin block to move towards the locking pin to press the locking pin down, thereby separating the access assembly and the locking assembly; The locking assembly includes a locking body rotatably arranged on the positioning bearing plate, the locking body is provided with a lateral opening to accommodate a plug-in slot of the access body of the access assembly, a blocking plate is movably arranged on the locking body at the slot opening of the plug-in slot, and a second electric push cylinder is arranged on the locking body to drive the blocking plate to block or avoid the slot opening of the plug-in slot; the locking body is provided with a locking slot above the plug-in slot, the locking slot penetrates through the plug-in slot and cooperates with a locking pin; The sensor assembly includes a pressure sensor and a position sensor connected with the control system through signal lines, the pressure sensor is arranged at the top of the locking slot, and the position sensor is arranged at the position where the press pin block extends; The locking body of the locking assembly is fixedly provided with a pair of horizontal guide rails, a guide column is movably arranged on the horizontal guide rails to guide the access body of the access assembly, a ball guide sliding groove is arranged on the inner side of the guide column, and a plurality of rolling bodies are embedded in the ball guide sliding groove; When the electrically-powered trailing head is connected with the battery platform, the horizontal force applied by the electrically-powered trailing head to the battery platform through the connecting device is F, the elastic body connected with the locking pin can be compressed by h, and the angle between the inclined surface of the locking pin and the horizontal direction is β; during the plug-in process of the electrically-powered trailing head and the battery platform, the horizontal force F needs to meet the following conditions: Wherein, Fp is the rolling resistance of the rolling body on the guide column, f is the rolling resistance coefficient of the rolling body on the guide column, W is the total weight of the battery platform; K is the elastic stiffness of the elastic body; Fμ is the friction force between the pressure pin block and the inclined surface of the locking pin.

2. A battery platform conveyor system as claimed in claim 1, wherein: The access body of the access assembly is provided with a ball guide sliding groove on each side thereof, which cooperates with the rolling body.

3. A battery platform conveyor system as claimed in claim 1, wherein: The sensor assembly further comprises a tactile sensor connected to the control system through a signal line, which is arranged inside the end of a guide column.

4. A battery platform conveyor system as in claim 1, wherein: The access body of the access assembly is provided with a horizontally arranged guide groove, and the pressure pin block is movably clamped in the guide groove through the connecting member arranged thereon.

5. A battery platform conveyor system as claimed in claim 1, wherein: The positioning bearing plate is provided with a vertical rotating shaft, the locking body of the locking assembly is movably sleeved on the rotating shaft, the positioning bearing plate is provided with a through upper and lower circular arc guide groove, the center of the circular arc guide groove is consistent with the center of the rotating shaft arranged on the locking body of the locking assembly, the rotating guide piece is arranged on the locking body of the locking assembly, and the upper portion of the rotating guide piece extends into the circular arc guide groove.

6. An operation method of the battery platform conveying system according to any one of claims 1-5, comprising the following steps: Step one: the electric tow head is quickly connected with the battery platform S1: access preparation, pull out the guide column; start the second electric push cylinder, lift the blocking plate, and start the electric tow head; S2: access operation, slowly approach the locking assembly on the battery platform through the access assembly, and align and position through the camera; S3: when the tactile sensor sends a positioning accurate signal, continue to operate the electric tow head to gradually move the access assembly along the guide column through the connector slot to the locking slot; S4: when the control system receives the access signal of the pressure sensor triggered by the locking pin, stop the access operation; S5: operate the electric tow head to tow the battery platform to the destination; S6: remove the battery box and the assembly; Step two: the electric tow head is quickly separated from the battery platform Step1: start the first electric push cylinder to reach the specified stroke; Step2: the control system receives the position sensor signal triggered by the pressure pin block, and the first electric push cylinder stops moving; Step3: operate the electric tow head to move out the access assembly; Step4: when the control system receives the tactile sensor signal, the access assembly is separated from the locking assembly, that is, the electric tow head is quickly separated from the battery platform; Step5: control the second electric push cylinder to lower the blocking plate and retract the guide column; Step three: place the electric tow head at a specified position and turn off the power; Step four: end.

Images