CN211769754U - An electric heavy truck charging and replacing system - Google Patents

Abstract

The utility model provides an electronic heavily block charges and trades system, include: the battery box storage platform comprises a turnover channel positioned in the middle and storage areas positioned on two sides, wherein the turnover channel is used for transferring the battery box and providing a transfer space; the storage area is used for storing the battery box and/or charging the battery box; a movable device is arranged between the storage areas on the two sides and the transfer channel, so that the battery box can move between the transfer channel and the storage areas on the two sides; the battery vehicle parking area is used for parking the vehicle to be replaced; and the hoisting mechanism is positioned above the battery box storage platform and the parking area of the battery vehicle to be replaced and used for hoisting the battery box between the battery vehicle to be replaced and the transfer passage so as to realize replacement of the battery box of the battery vehicle to be replaced. The utility model discloses simplified the system architecture, it is steerable to 3 minutes to trade the electric time, has advantages such as small, with low costs.

Description

An electric heavy truck charging and replacing system

technical field

The utility model relates to the field of electric truck power exchange, in particular to an electric heavy truck charging and exchanging system.

Background technique

At present, in the field of electric truck power exchange, the battery box adopts a structure that can be quickly replaced, and can be replaced in a dedicated power exchange station. The swap station is equipped with multi-dimensional trolleys traveling in X and Y directions, Z-direction hoisting and hoisting systems, charging devices, multiple sets of battery boxes and multiple sets of charging stations. Under the action of the special power exchange device, remove the discharged battery box, put it into the charging station, and install the charged battery box on the electric truck. In the field of container hoisting, the container adopts a fast hoisting system, which is also equipped with a multi-dimensional lattice car traveling in X and Y directions and a Z-direction hoisting system. The container is hoisted and removed under the action of the special hoisting jig. The advantage is that the battery box can be replaced in a short time (usually within 5 minutes); the coverage is large, there are more battery boxes per unit, and the walking distance can be adjusted in multiple directions; but there are the following disadvantages, the system volume of multi-dimensional hoisting and replacement Large, multi-dimensional drive, more complex control, high cost; large floor area, high foundation requirements, large construction volume, high cost; Z-direction lifting winch system is more complex and high.

Utility model content

Aiming at the defects in the prior art, the purpose of the present invention is to provide an electric heavy-duty truck charging and replacing system.

In order to achieve the above purpose, the utility model provides an electric heavy-duty truck charging and exchanging system, comprising:

A battery box storage platform, which includes a turnover channel in the middle and storage areas on both sides, wherein the turnover channel is used to transfer the battery box and provide a transfer space; the storage area is used to store the battery box, and / or charging the battery box; a movable device is provided between the storage areas on both sides and the turnover passage, so that the battery box can be moved between the turnover passage and the storage areas on both sides move;

a parking area for the vehicle to be replaced, for parking the vehicle to be replaced;

A hoisting mechanism, which is located above the battery box storage platform and the parking area of the vehicle to be replaced, is used for hoisting and transporting the battery box between the parking area of the vehicle to be replaced and the turnover channel, so as to realize Replacement of the battery box of the vehicle to be replaced.

Preferably, the battery box storage platform includes: several groups of battery box bases, wherein:

Each group of the battery box bases includes two battery box bases, and the middle of the two battery box bases is separated by a battery box turnover space; the bottom of the two battery box bases is provided with a guide rail; the battery box bases , used to store the battery box and/or charge the battery box; the battery box base includes a movable roller frame, the bottom of which is installed with rollers, and the rollers of the two battery box bases can move along the The direction of the guide rail moves;

Several groups of the battery box bases are distributed horizontally in sequence to form a row, the turnover channel is composed of the battery box turnover spaces located in the middle, and the battery box bases located on both sides respectively form the two sides. In the storage area, the movable device between the storage area on both sides and the circulation passage is formed by the guide rails and the rollers of the battery box bases of each group.

Preferably, the battery box base further includes a rectangular frame, and the rectangular frame is provided with a battery box charging connector, a battery box guide moving tray and a battery box in-position switch; wherein the battery box charging connector is connected to the battery box charging connector. The battery box is electrically connected; the battery box guide moving tray is used to support the battery box; the battery box presence switch is used to detect whether the battery box is installed in place.

Preferably, the bottom of the battery box base is provided with:

a charging rack, which is a cuboid frame and plays a supporting role; the guide rail of the battery box base is arranged above the charging rack; the charging rack is also provided with a battery box moving drag chain;

a charger, which is arranged on the charging rack and provides power for charging the battery box;

A traveling drive deceleration motor is used to drive the roller to move along the guide rail.

Preferably, the hoisting mechanism includes:

a support frame, the support frame is provided with a track, the laying direction of the track is consistent with the direction of the circulation channel, and the two ends of the track are provided with limit parts;

a mobile trolley, which is arranged on the support frame and can move in the direction of the track; the bottom of the mobile trolley is provided with a spreader for connecting the battery box;

The driving device, including four electric chain hoists, is used to drive the lifting and lowering of the spreader.

Preferably, the mobile cart includes:

Cuboid frame for carrying internal components;

a control cabinet, fixed on the cuboid frame;

a roller support frame, which is arranged on both sides above the cuboid frame;

a driving roller, which is arranged on the roller support frame;

A driven roller, which is arranged on the roller support frame;

an encoder, which is connected to the drive roller and used to read the number of turns of the drive roller in real time;

a towline bracket, which is arranged on the roller support frame and is used for installing the towline;

The limit striker is arranged at both ends of the roller support frame.

Preferably, the spreader includes:

Fixed brackets, including rectangular support frames;

a twist-lock mechanism, which is distributed at four points of the fixing bracket;

The positioning component is arranged around the fixing bracket and extends outward from the fixing bracket body. By positioning the positioning component and the frame beam of the battery box, the X and the distance between the hanger and the battery box are realized. Y-direction constraint;

detection components, which are arranged at four corners of the fixing bracket, and are used for judging whether the spreader and the box are in place after the positioning components are positioned;

A drive mechanism, which is arranged on the fixed bracket, is used to drive the twist lock mechanism to rotate, so that the twist lock hook is dragged under the box frame to realize the Z-direction lock between the spreader and the battery box end;

A suspension mechanism, which includes a suspension chain, a chain fixing seat, a screw half retaining ring, a pressure ball bearing, an adjusting screw and an anti-swing butt rod; wherein the suspension chain is connected with the top of the chain fixing seat; the chain fixing seat It is composed of two symmetrical parts connected by threads; the screw half retaining ring is located above the pressure ball bearing, the pressure ball bearing is connected to the adjusting screw, and the screw half retaining ring is embedded in the adjusting screw The screw half retaining ring and the pressure ball bearing are located in the chain fixing seat; the adjusting screw is connected with the fixing bracket; the anti-swing butting rod is sleeved on the chain fixing seat and the outside of the suspension chain.

Preferably, the drive mechanism includes:

The two ends of the rotating shaft are provided with a rotating shaft support bearing, a rotating shaft supporting bearing seat and a rotating shaft connecting arm, the two ends of the rotating shaft are respectively connected with the rotating shaft supporting bearing, and the rotating shaft supporting bearing is fixed to the rotating shaft through the rotating shaft supporting bearing seat. on the fixed bracket; the rotating shaft connecting arms are arranged at both ends of the rotating shaft and are movably connected with the rotating shaft;

an electric push rod, which includes an electric push rod connecting arm, and the electric push rod is connected with the rotating shaft through the electric push rod connecting arm;

a connecting rod, one end of which is connected with the rotating shaft through the rotating shaft connecting arm;

The padlock connecting arm, which is arranged on the other end of the connecting rod and connected to the bottom of the connecting rod, is used to connect the twist lock mechanism and drive the twist lock mechanism to rotate.

Preferably, the parking area of the vehicle to be replaced includes:

a camera, which is arranged above the vehicle to be replaced with batteries, used to pick up the position of the marked point above the vehicle to be replaced with batteries, and captures the marked points on the vehicle to be replaced with batteries each time by taking a photo;

a license plate sensing antenna, which is arranged above the vehicle to be replaced with a battery, and is used for the license plate sensor to read the license plate number of the vehicle to be replaced with a battery and record it into the system;

a guide device, which is arranged on the ground and is used to guide the vehicle to be replaced into the parking position;

The driving-in reference line, which is set on the ground, provides a driving-in mark for the vehicle to be replaced with a battery, so that the vehicle to be replaced with a battery is parked in a proper position with reference to the mark.

Preferably, the vehicle parking area to be replaced is provided at one end of the battery box storage platform.

Compared with the prior art, the present invention has at least one of the following beneficial effects:

The hoisting mechanism used in the above system of the utility model is a single-direction walking trolley. Compared with the multi-dimensional walking trolley in the prior art, an X-direction drive and structure are omitted, which greatly reduces the Y-direction walking load.

The above-mentioned system of the utility model realizes the Y-direction movement of the battery box through the battery box storage platform, and cooperates with the crane to hoist and take out the battery. The battery box storage platform is provided with a turnover channel for hoisting the battery box, so as to realize the interchangeability of the battery box. At the same time, the floor space is minimized, and the power exchange time is further shortened. The power exchange time can be controlled within 3 minutes, and the battery box is moved below and the lifting of the trolley does not need to be included in the power exchange time. The walking distance of the trolley is small. The Z-direction hoisting stroke is small.

In the above-mentioned system of the present utility model, the driving part of the hoisting mechanism adopts an electric chain hoist structure, which simplifies the hoisting structure of the Z-direction hoisting system in the prior art into a standard electric chain hoist structure. For example, four separate chain hoists are used for hoisting. , Compared with the existing structure, the complex wire rope winding, multiple hoisting wheel arranging system and huge motor reducer drive are used, which greatly reduces the cost.

The system of the utility model has a small volume, for example, the total height does not exceed 5 meters, the width is 3 meters, and the length is determined according to the number of battery boxes, which simplifies the structure of the overall system.

The above-mentioned system of the utility model has a small volume and can modularize the whole station, and only needs to add one station when expanding.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Figure 1a is a schematic structural diagram of a preferred embodiment of the present invention;

Figure 1b is a schematic structural diagram of a preferred embodiment of the present invention;

1c is a schematic structural diagram of a preferred embodiment of the present invention;

2 is a schematic structural diagram of a hoisting mechanism according to a preferred embodiment of the present invention;

3a is a schematic structural diagram of a mobile cart according to a preferred embodiment of the present invention;

3b is a schematic structural diagram of a mobile cart according to a preferred embodiment of the present invention;

4a is a schematic structural diagram of a preferred embodiment of the present invention;

4b is a schematic structural diagram of a preferred embodiment of the present invention;

4c is a schematic structural diagram of a preferred embodiment of the present invention;

5 is a schematic structural diagram of a group of battery box bases according to a preferred embodiment of the present invention;

6 is a schematic structural diagram of a four-point box spreader according to a preferred embodiment of the present invention;

7 is a schematic diagram of the connection between the four-point box spreader and the battery box according to a preferred embodiment of the present invention;

8 is a schematic diagram of the connection between the four-point box-type spreader and the battery box according to a preferred embodiment of the present invention;

9 is an exploded view of the suspension mechanism of a preferred embodiment of the present invention;

10 is an exploded view of a twist lock mechanism of a preferred embodiment of the present invention;

11 is a schematic structural diagram of a four-point box spreader according to a preferred embodiment of the present invention;

12 is an exploded view of a four-point box spreader according to a preferred embodiment of the present invention;

The symbols in the figure are respectively: battery box storage platform 1, battery box base 101, battery box charging connector 102, battery box guide mobile tray 103, battery box in-position switch 104, charging rack 105, charger 106, walking drive deceleration Motor 107, battery box moving drag chain 108, guide rail 109, battery box moving position switch and limit 110, vehicle parking area 2 for battery replacement, camera 201, license plate sensing antenna 202, guide device 203, drive-in reference line 204, Hoisting mechanism 3, support frame 301, mobile trolley 302, spreader 303, electric chain hoist 304, control cabinet 305, roller support frame 306, driving roller 307, driven roller 308, encoder 309, drag chain support 310, limit Collision block 311, walking position switch 312, anti-swing guide cylinder 313, lifting position switch 314, spreader chain 315, battery box 4, battery vehicle to be replaced 5, fixing bracket 6, hook 701, hook bearing support seat 702, hook bearing 703, hook shaft 704, pressure ball 705, U-shaped lock nut 706, electric push rod 801, electric push rod connecting arm 802, locking and unlocking position switch 803, rotating shaft 804, first link 806a, second link 806d , the third link 806b, the fourth link 806c, the first shaft connection arm 807a, the second shaft connection arm 807b, the first padlock connection arm 808a, the second padlock connection arm 808d, the third padlock connection arm 808b, the fourth Padlock connecting arm 808c, chain fixing seat 901, screw half retaining ring 902, pressure ball bearing 903, adjusting screw 904, anti-sway docking rod 905, guide block 10, detection position switch 11, frame beam 12, marking point 14, first Housing 1301 , second housing 1302 , third housing 1303 , fourth housing 1304 , fifth housing 1305 .

Detailed ways

The present utility model will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

Referring to Fig. 1a and Fig. 1b, it is a schematic structural diagram of an electric heavy-duty truck charging and exchanging system according to a preferred embodiment of the present invention, including: a battery box storage platform 1, which includes a turnover channel located in the middle and storage areas located on both sides, wherein , the turnover channel is used to transfer the battery box 4 to provide a turnover space; the storage area is used to store the battery box 4 and/or charge the battery box 4; there are movable devices between the storage areas on both sides and the turnover channel to make the battery The case 4 can be moved between the middle channel and the storage areas on both sides, realizing the interchangeability of the battery case 4 . The parking area 2 of the vehicle to be replaced can be located at one end of the storage platform 1 of the battery box 4 for parking the vehicle to be replaced; the hoisting mechanism 3 is located above the storage platform 1 of the battery box and the parking area 2 of the vehicle to be replaced, and is used for parking the vehicle to be replaced. The hoisting of the battery box 4 between the vehicle 5 to be replaced and the circulation channel. Referring to Fig. 1c, the discharged battery box 4 is hoisted from the vehicle to be replaced to the turnover channel, and then the discharged battery box 4 is moved to the storage areas on both sides by the movable device for charging, and the The charged battery box 4 in the storage area is moved to the turnover channel by the movable device, and finally the hoisting mechanism lifts the charged battery box 4 to the battery vehicle 5 to be replaced, thereby realizing the replacement of the battery box 4 of the battery vehicle 5 to be replaced. .

In the above embodiment, the hoisting mechanism 3 adopts a unidirectional walking trolley (Y direction). Compared with the multi-dimensional walking trolley used by the hoisting device in the existing power exchange system, the drive and structure in the X direction are reduced. Reduced the load on Y-direction travel.

In other preferred embodiments, the hoisting mechanism 3 includes a support frame 301 , a mobile trolley 302 and a driving device. Referring to FIG. 2 , there are four support legs below the support frame 301 , and the height of the support legs is the height of the support frame 301 . height, so that the support frame 301 is located above the battery box storage platform 1 . Tracks are laid along the length direction of the support frame 301, and the laying direction of the tracks is consistent with the direction of the turnover channel. Limiting components are provided at both ends of the track to limit the moving position of the mobile trolley 302 to prevent the trolley from rushing out of the track. Referring to FIG. 2 , the mobile trolley 302 is installed on the support frame 301 , and the mobile trolley 302 can move along the track direction. During operation, the mobile trolley 302 can be moved from the battery storage area 2 to the turnaround channel of the battery box storage platform 1 . A spreader 303 is provided at the bottom of the mobile trolley 302 for connecting the battery box 4 . As a preferred method, the spreader 303 can be a four-point box-type crane. An anti-swing guide cylinder 313 is arranged below the spreader chain 315. The anti-sway guide cylinder 313 is a horn-shaped component, and the end of the anti-sway guide cylinder 313 with a small diameter is fixed on the mobile trolley 302, and one end of the bell mouth is located at the lower end. A lifting position switch 314 is provided on the anti-swing guide cylinder 313 for controlling the lifting and lowering of the spreader 303 . Referring to FIGS. 3 a and 3 b , the driving device includes four electric chain hoists 304 , which are used to drive the lifting and lowering of the spreader 303 .

In other preferred embodiments: as shown in Figures 3a and 3b, the mobile trolley 302 includes a cuboid frame, a control cabinet 305, a roller support frame 306, a driving roller 307, a driven roller 308, an encoder 309, a drag chain support 310, The limit striker 311 and the travel position switch 312, wherein the cuboid frame is used to carry internal components. The two control cabinets 305 are respectively fixed to both ends of the cuboid frame. Referring to Fig. 3b, two roller support frames 306 are fixed on both sides of the upper part of the rectangular parallelepiped frame, and the lateral distance between the two roller support frames 306 matches the track distance. The driving rollers 307 and the driven rollers 308 are installed on the roller support frame 306, and the driving rollers 307 and the driven rollers 308 are located on both sides of the upper part of the rectangular frame. The encoder 309 is connected to the driving roller 307, and is used to read in real time the number of rotations of the roller, which is also the distance moved by the moving trolley 302. The control cabinet 305 is equipped with a PLC programmable controller, a motor variable frequency speed controller of the mobile trolley 302, electrical components and hardware circuits to realize the power supply, position control and speed control of the mobile trolley 302, and the position and hoisting control of the lifting hoist 303, etc. .

The towline bracket 310 is installed on the outer side of the roller support frame 306 for installing the towline and plays a protective role. Limit bumps 311 are installed at both ends of the roller support frame 306 to act as a brake and buffer to prevent the end of the roller support frame and the end of the support frame 301 from directly contacting and colliding. The running position switch 312 is disposed above the cuboid frame, and the running position switch 312 is used to control the running switch of the mobile trolley 302 .

In other preferred embodiments: as shown in Figure 4a, Figure 4b, Figure 4c and Figure 7, a camera 201, a license plate sensing antenna 202, a guide device 203 and an entry reference line are provided in the parking area 2 of the vehicle to be replaced. 204; wherein, the camera 201 is used to pick up the position of the marking point 14 on the battery box above the vehicle 5 to be replaced, the camera 201 takes a picture of the circular marking point 14, and then simulates the position of the center point of the circle, through relative to the camera field of view The deviation of the origin calculates the position deviation of the vehicle, and captures the marked point 14 on the battery box on the vehicle 5 to be replaced each time by taking pictures and calculates the deviation from the theoretical origin, so as to control the movement of the spreader 303 through the PLC to compensate for its deviation. shift. The license plate sensor antenna 202 is used for the license plate sensor to read the license plate number on the truck and record it into the system. The guide device 203 is fixed on the ground to form a guide on the ground. The guide device 203 guides the vehicle 5 to be replaced to drive into the parking position; the drive-in reference line 204 is fixed on the ground and located inside the guide device 203 to provide a drive-in mark for the vehicle to be replaced 5, so that the vehicle to be replaced 5 refers to the mark Park in place, parked at one end of the hoisting mechanism.

In other preferred embodiments, as shown in FIG. 5 , the battery box storage platform 1 includes: several groups of battery box bases 101 , each group of battery box bases 101 includes two battery box bases 101 , and the middle of the two battery box bases 101 There are 4 turnover vacancies separated by a battery box. A guide rail 109 is provided below the two battery box bases 101. The battery box base 101 includes a movable roller frame with rollers installed at the bottom. The rollers of the two battery box bases 101 can move along the direction of the guide rails 109. The box base 101 can be moved between the original position and the turnover space of the battery box 4, and the movable roller frame is independently driven by a motor to move in the Y direction, and cooperates with the trolley to hoist and take out the battery. The battery box base 101 is used for storing the battery box 4 and/or charging the battery box 4 .

Several groups of battery box bases 101 are distributed horizontally in turn to form a row, and a turnover channel is formed by a number of battery boxes 4 in the middle. The guide rails 109 and the rollers of the box base 101 form the movable means between the storage areas on both sides and the turnover channel.

In other preferred embodiments, as shown in FIG. 5 , the battery box base 101 includes a rectangular frame, and a battery box charging connector 102 , a battery box guide moving tray 103 , a battery box moving position switch and a battery box charging connector 102 are arranged above the rectangular frame. Limit 110 and battery box presence switch 104; wherein, the battery box charging connector 102 is electrically connected to the battery box 4; the battery box guide moving tray 103 is used to support the battery box 4; the battery box presence switch 104 is used to detect the battery box 4 is the installation in place. The battery box moving position switch and the limit 110 are used to limit the moving position or travel of the battery box 4 .

In other preferred embodiments, as shown in FIG. 5 , a charging rack 105, a charger 106 and a walking drive deceleration motor 107 are provided below the battery box base 101; the charging rack 105 is a cuboid frame, which plays a supporting role; The charger 106 is placed in the charging rack 105 to provide power for charging the battery box 4; the guide rail 109 under the battery box base 101 is installed above the charging rack 105; the charging rack 105 is provided with a battery box moving drag chain 108; The drive shaft of the motor 107 is connected with the roller of the guide rail 109, so that the roller rotates on the guide rail 109 and travels by frictional force.

In the specific implementation process, the total height of the battery box base 101 and the lower charging rack 105 is consistent with the height of the replacement position of the vehicle to be replaced, so as to minimize the Z-direction travel of the hoisting and the overall height of the trolley.

Referring to Figure 6, it is a schematic structural diagram of a four-point box spreader, the spreader includes a fixed bracket 6, four twist lock mechanisms, a drive mechanism, a positioning component and a detection component; wherein, the four twist lock mechanisms are distributed on the four points of the fixing bracket 6 . The positioning components are arranged around the fixed bracket 6, and extend outward from the body of the fixed bracket 6. By positioning the positioning components and the frame beam 12 of the battery box 4, the X and Y direction constraints of the hanger 303 and the battery box 4 are realized; The four corners of the fixed bracket 6 are used to judge whether the four corners of the spreader 303 fit the box body in place after the positioning components are positioned; the driving mechanism is arranged on the fixed bracket 6 and is used to drive the twist-lock mechanism to rotate, so that the rotary The hook at the bottom of the locking mechanism is dragged under the frame beam 12 to realize the Z-direction locking of the hanger 303 and the battery box 4 .

Referring to FIG. 7 , the shape of the fixing bracket 6 is a cuboid frame structure, which matches the shape of the frame beam 12 . The size of the fixing bracket 6 is slightly smaller than that of the frame beam 12 , so that the periphery of the fixing bracket 6 is positioned on the box frame beam 12 through the positioning member. The battery box 4 includes a frame beam 12 at the upper portion for connection with a hanger 303 . The frame beam 12 is a rectangular frame, and the main beam of the frame can form a locking structure with the twist-lock mechanism, and there is no need to add additional locking supports matched with the twist-lock mechanism.

Referring to FIGS. 7 and 8 , the hook 701 of the twist-lock mechanism is arranged horizontally with the box frame beam 12 , and the hook 701 is driven to rotate 90 degrees by the driving mechanism, so that the hook 701 is perpendicular to the box frame beam 12 to realize Z-direction locking .

9, the twist lock mechanism includes: a hook 701, the hook 701 is located at the bottom end of the twist lock mechanism, the hook 701 is provided with a hook shaft 704, the hook 701 can rotate along the hook shaft 704; the upper end of the hook shaft 704 is provided with a keyway , used to connect with the padlock connecting arm; two hook bearings 703, two hook bearings 703 are connected with the hook shaft 704, used for the XY direction constraint of the hook shaft 704; the twist lock mechanism is supported by bearings, which can rotate flexibly, prolong the service life and improve the operation. efficiency. A pressure ball 705 and a U-shaped locking nut 706, the pressure ball 705 is connected with the hook shaft 704, and the U-shaped locking nut 706 is arranged above the pressure ball 705; the hook bearing support seat 702, the hook bearing support seat 702 has an accommodating space, The accommodating space is provided with a partition with a central through hole, and the partition divides the accommodating space into an upper space and a lower space; the hook bearing support seat 702 is sleeved on the hook shaft 704, and the hook shaft 704 is penetrated by the central through hole of the partition. However, the two hook bearings 703 are located in the lower space, and the pressure ball 705 is located in the upper space; In other embodiments, the pressure ball 705 can also be replaced with a needle bearing.

Referring to FIG. 6 , the drive mechanism includes: a rotating shaft 804, an electric push rod 801 and an electric push rod connecting arm 802. The electric push rod 801 is connected to the rotating shaft 804 through the electric push rod connecting arm 802; the rotating shaft 804 is set horizontally, and the electric push rod 801 The drive shaft 804 rotates.

The first rotating shaft connecting arm 807a and the second rotating shaft connecting arm 807b, the first rotating shaft connecting arm 807a and the second rotating shaft connecting arm 807b are respectively arranged on both ends of the rotating shaft 804 and are connected with the rotating shaft 804, and the rotating shaft 804 is rotated to drive the rotating shaft connection at both ends The arm rotates about the axis of rotation 804 .

The first connecting rod 806a, the second connecting rod 806d, the third connecting rod 806b and the fourth connecting rod 806c, wherein the first connecting rod 806a and the second connecting rod 806d are respectively arranged perpendicular to the rotating shaft 804, and the first connecting rod 806a, One end of the second connecting rod 806d is connected to the first rotating shaft connecting arm 807a, and the first connecting rod 806a and the second connecting rod 806d are driven to rotate around the rotating shaft 804 through the first rotating shaft connecting arm 807a.

The third connecting rod 806b and the fourth connecting rod 806c are respectively arranged perpendicular to the rotating shaft 804. One end of the third connecting rod 806b and the fourth connecting rod 806c is connected with the second rotating shaft connecting arm 807b, and the second rotating shaft connecting arm 807b drives the third connecting rod 807b. The link 806b and the fourth link 806c rotate around the rotation shaft 804 .

The first padlock connecting arm 808a, the second padlock connecting arm 808d, the third padlock connecting arm 808b and the fourth padlock connecting arm 808c, wherein the first padlock connecting arm 808a is arranged horizontally, and the bottom of the other end of the first link 806a connect. The second padlock connecting arm 808d is arranged horizontally and is connected to the bottom of the other end of the second link 806d. The third padlock connecting arm 808b is arranged horizontally and is connected to the bottom of the other end of the third link 806b; the fourth padlock link 808c is arranged horizontally and is connected to the bottom of the other end of the fourth link 806c. The four padlock connecting arms are respectively driven to rotate around the radial direction by the first link 806a, the second link 806d, the third link 806b and the fourth link 806c. The four padlock connecting arms are respectively connected with the four-point twist lock mechanism, and the four padlock connecting arms drive the twist lock mechanism to rotate in the radial direction, so as to realize the four-point synchronous drive automatic locking.

Referring to FIG. 6 , the driving mechanism further includes: two rotating shaft support bearings and two rotating shaft supporting bearing seats, wherein the two rotating shaft supporting bearings are respectively arranged at both ends of the rotating shaft 804 , and the two rotating shaft supporting bearings pass through the two rotating shafts respectively. The support bearing seat is fixed on the fixed bracket 6 . Further, a locking and unlocking position switch 803 is also provided on the rotating shaft 804 . The locking and unlocking position switch 803 is used to detect the angular position of the connecting arm (metal sensing). The locking and unlocking position switch 803 is fixed by the bracket, the position of the locking and unlocking position switch 803 can be adjusted, the locking and unlocking position switch 803 is parallel to the rotating shaft 804, and its position can be sensed by vertically facing the connecting arm.

The positioning component includes four guide blocks 10 , and the four guide blocks 10 are divided into two groups of guide blocks 10 , and each group of guide blocks 10 is symmetrically arranged on both sides of the fixed bracket 6 . Specifically, the guide block 10 includes a connecting plate, and two rib plates are arranged above the connecting plate; the connecting plate is fixed to the bottom surface of the side of the fixed frame, and the two rib plates are clamped on the outer ridge of the side of the fixed frame; The lower part of the connecting plate is provided with a downwardly extending convex block, and one side of the convex block and the bottom surface of the connecting plate form an L-shaped slot, which is used to receive the frame main beam of the box body; the lower end of the convex block is a conical structure, play a guiding role.

Referring to FIG. 6 , the detection components are four in-position detection switches 11 , and the four in-position detection switches 11 are respectively vertically arranged at four corners of the fixed bracket 6 . Two horizontal brackets are respectively installed on both ends of the fixed bracket 6 , and the four position detection switches 11 are respectively installed on the two horizontal brackets and located on the four corners of the fixed bracket 6 . The four position detection switches 11 are vertically facing the main beam of the frame to sense its position.

Referring to FIG. 10 , the four-point box spreader also includes four suspension mechanisms, each of which includes a suspension chain, a chain fixing seat 901 , a screw half retaining ring 902 , a pressure ball bearing 903 and an adjusting screw 904 , wherein the chain The fixed seat 901 is formed by connecting two symmetrical parts together, and has a accommodating space inside. The screw half blocking ring 902 and the pressure ball bearing 903 are arranged in the chain fixing seat 901, wherein the screw half blocking ring 902 is located above the pressure ball bearing 903, the pressure ball bearing 903 is connected with the adjusting screw 904, and the screw half blocking ring 902 is embedded in the The screw groove of the adjusting screw 904 is used to limit the position; the chain fixing base 901 is arranged at the bottom end of the suspension chain, and the suspension chain is connected with the adjusting screw 904 ;

The suspension points of the four suspension mechanisms can be connected by means of standard hoisting hoist hooks. The four suspension mechanisms 4 are respectively connected with the main beam of the fixing bracket 6 through four adjusting screws 904, and can be adjusted in a certain range in the Z direction without removing the chain. It can be adjusted directly, which overcomes the problem that the height of the four-point suspension cannot be adjusted horizontally. A suspension chain is used in the suspension mechanism, and the suspension chain can float in any direction, which further plays a role in the positioning of the matching hanger 303 .

11 , the suspension mechanism further includes four anti-swing butt rods 905. The anti-swing butt rods 905 are sleeved on the chain fixing seat 901 and the outside of the suspension chain. . In the process of lifting, it plays the role of preventing the suspension chain from swinging.

Referring to FIG. 12 , the spreader 303 further includes a first housing 1301 , a second housing 1302 , a third housing 1303 , a fourth housing 1304 and a fifth housing 1305 . The first shell 1301, the second shell 1302, the third shell 1303, the fourth shell 1304 and the fifth shell 1305 are respectively assembled on the components above the fixing bracket 6, and the first shell 1301 and the fifth shell 1305 are respectively installed in the detection The upper part of the component is fixed with the fixing bracket 6 by bolts. The second casing 1302, the third casing 1303 and the fourth casing 1304 are respectively installed above the driving component and fixed with the fixing bracket 6 by bolts. The detection component and the driving component are accommodated It is located inside the shell, isolated from the external environment, plays a protective role and prolongs the service life.

The above-mentioned embodiment does not need to add an additional locking support matched with the twist-lock mechanism to the battery box 4. The twist-lock mechanism can be directly dragged under the frame beam 12 to realize the Z-direction locking, and the X and Y directions are constrained by the surrounding positioning components. Before the spreader 303 is attached to the battery box 4, the XY guidance takes precedence over the box to produce a positioning effect, and the positioning component can position the spreader 303 within an error of +/- 100mm to achieve a wide range of error positioning. After the spreader 303 is in place with the box body, four in-position detection switches 11 (ie, detection components) are arranged at four points. The four-point switch determines that the spreader 303 is in place, and the drive mechanism can be activated to drive the twist-lock mechanism to rotate 90 degrees, so that the The twist-lock mechanism is towed below the 701.

The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which do not affect the essential content of the present invention.

Claims (10)

1. An electric heavy-duty truck charging system, characterized in that: comprising: A battery box storage platform, which includes a turnover channel in the middle and storage areas on both sides, wherein the turnover channel is used to transfer the battery box and provide a transfer space; the storage area is used to store the battery box, and /or charging the battery box; a movable device is provided between the storage areas on both sides and the circulation channel, so that the battery box can be moved between the circulation channel and the storage areas on both sides move; a parking area for the vehicle to be replaced, for parking the vehicle to be replaced; A hoisting mechanism, which is located above the battery box storage platform and the parking area of the vehicle to be replaced, is used for hoisting and transporting the battery box between the parking area of the vehicle to be replaced and the turnover channel, so as to realize Replacement of the battery box of the vehicle to be replaced. 2. An electric heavy-duty truck charging and exchanging system according to claim 1, characterized in that: the battery box storage platform comprises: several groups of battery box bases, wherein: Each group of the battery box bases includes two battery box bases, and the middle of the two battery box bases is separated by a battery box turnover space; the bottom of the two battery box bases is provided with a guide rail; the battery box bases , used to store the battery box and/or charge the battery box; the battery box base includes a movable roller frame, the bottom of which is installed with rollers, and the rollers of the two battery box bases can move along the The direction of the guide rail moves; Several groups of the battery box bases are distributed horizontally in sequence to form a row, the turnover channel is composed of the battery box turnover spaces located in the middle, and the battery box bases located on both sides respectively form the two sides. In the storage area, the movable device between the storage area on both sides and the circulation passage is formed by the guide rails and the rollers of the battery box bases of each group. 3 . The electric heavy truck charging and exchanging system according to claim 2 , wherein the battery box base further comprises a rectangular frame, and the rectangular frame is provided with a battery box charging connector and a battery box guiding mobile tray. 4 . and a battery box in-position switch; wherein, the battery box charging connector is electrically connected to the battery box; the battery box guide moving tray is used to support the battery box; the battery box in-position switch is used to detect all Check whether the battery box is installed properly. 4. An electric heavy-duty truck charging and exchanging system according to claim 2, wherein: the bottom of the battery box base is provided with: a charging rack, which is a cuboid frame and plays a supporting role; the guide rail of the battery box base is arranged above the charging rack; the charging rack is also provided with a battery box moving drag chain; a charger, which is arranged on the charging rack and provides power for charging the battery box; A traveling drive deceleration motor is used to drive the roller to move along the guide rail. 5. An electric heavy-duty truck charging and exchanging system according to claim 1, wherein the hoisting mechanism comprises: a support frame, the support frame is provided with a track, the laying direction of the track is consistent with the direction of the circulation channel, and the two ends of the track are provided with limit parts; a mobile trolley, which is arranged on the support frame and can move in the direction of the track; the bottom of the mobile trolley is provided with a spreader for connecting the battery box; The driving device, including four electric chain hoists, is used to drive the lifting and lowering of the spreader. 6. An electric heavy-duty truck charging and exchanging system according to claim 5, wherein the mobile trolley comprises: Cuboid frame for carrying internal components; a control cabinet, fixed on the cuboid frame; a roller support frame, which is arranged on both sides of the upper part of the cuboid frame, a driving roller, which is arranged on the roller support frame, The driven roller is arranged on the roller support frame, an encoder, which is connected to the drive roller and used to read the number of turns of the drive roller in real time; a towline bracket, which is arranged on the roller support frame and is used for installing the towline; The limit striker is arranged at both ends of the roller support frame. 7. An electric heavy-duty truck charging and exchanging system according to claim 5, wherein the spreader comprises: Fixed brackets, including rectangular support frames; a twist-lock mechanism, which is distributed at four points of the fixing bracket; The positioning component is arranged around the fixing bracket and extends outward from the fixing bracket body. By positioning the positioning component and the frame beam of the battery box, the X and the distance between the hanger and the battery box are realized. Y-direction constraint; detection components, which are arranged at the four corners of the fixing bracket, and are used for judging whether the spreader and the box are in place after the positioning components are positioned; a driving mechanism, which is arranged on the fixing bracket and is used to drive the twist-lock mechanism to rotate, so that the twist-lock hook is dragged under the box frame, so as to realize the Z-direction locking of the spreader and the battery box; A suspension mechanism, which includes a suspension chain, a chain fixing seat, a screw half retaining ring, a pressure ball bearing, an adjusting screw and an anti-swing butt rod; wherein the suspension chain is connected with the top of the chain fixing seat; the chain fixing seat It is composed of two symmetrical parts connected by threads; the screw half retaining ring is located above the pressure ball bearing, the pressure ball bearing is connected to the adjusting screw, and the screw half retaining ring is embedded in the adjusting screw The screw half retaining ring and the pressure ball bearing are located in the chain fixing seat; the adjusting screw is connected with the fixing bracket; the anti-swing butting rod is sleeved on the chain fixing seat and the outside of the suspension chain. 8. An electric heavy-duty truck charging and exchanging system according to claim 7, wherein the driving mechanism comprises: The two ends of the rotating shaft are provided with a rotating shaft support bearing, a rotating shaft supporting bearing seat and a rotating shaft connecting arm, the two ends of the rotating shaft are respectively connected with the rotating shaft supporting bearing, and the rotating shaft supporting bearing is fixed to the rotating shaft through the rotating shaft supporting bearing seat. on the fixed bracket; the rotating shaft connecting arms are arranged at both ends of the rotating shaft and are movably connected with the rotating shaft; an electric push rod, which includes an electric push rod connecting arm, and the electric push rod is connected with the rotating shaft through the electric push rod connecting arm; a connecting rod, one end of which is connected with the rotating shaft through the rotating shaft connecting arm; The padlock connecting arm, which is arranged on the other end of the connecting rod and connected to the bottom of the connecting rod, is used to connect the twist lock mechanism and drive the twist lock mechanism to rotate. 9 . The electric heavy-duty truck charging and exchanging system according to claim 1 , wherein the parking area of the vehicle to be replaced with batteries comprises: 10 . a camera, which is arranged above the vehicle to be replaced with batteries, used to pick up the position of the marked point above the vehicle to be replaced with batteries, and captures the marked points on the vehicle to be replaced with batteries each time by taking a photo; a license plate sensing antenna, which is arranged above the vehicle to be replaced with a battery, used for the license plate sensor to read the license plate number of the vehicle to be replaced with a battery; a guide device, which is arranged on the ground and is used to guide the vehicle to be replaced into the parking position; The driving-in reference line, which is set on the ground, provides a driving-in mark for the vehicle to be replaced with a battery, so that the vehicle to be replaced with a battery is parked in a proper position with reference to the mark. 10 . The electric heavy-duty truck charging and exchanging system according to claim 1 , wherein the vehicle parking area for the battery to be exchanged is arranged at one end of the battery box storage platform. 11 .

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