Battery hoisting system of charging, replacing and energy supplementing station

Abstract

The invention relates to a battery lifting system of a charging, replacing and energy supplementing station, which comprises a longitudinal moving frame, a transverse moving frame and a battery lifting appliance, the longitudinal moving frame longitudinally moves along a longitudinal guide rail, the transverse moving frame transversely moves along a transverse guide rail, four fixed pulleys are mounted on the transverse moving frame, and the battery lifting appliance comprises a butt joint frame and two groups of lifting hook assemblies. Two lifting speed reducers are arranged on the butt-joint frame, rope winding wheels are installed at the two ends of output shafts of the lifting speed reducers respectively, four lifting ring assemblies corresponding to the rope winding wheels one to one are further arranged on the butt-joint frame, and the four lifting ring assemblies correspondingly wind around the four fixed pulleys through steel wire ropes respectively and are connected with the corresponding rope winding wheels. The lifting hook assembly comprises a middle connecting base fixed to the butt-joint frame, side connecting bases fixed to the butt-joint frame are arranged on the two sides of the middle connecting base respectively, rotating shafts are installed on the side connecting bases, lifting claws are fixed to the lower ends of the rotating shafts, and air cylinders are arranged between the lifting claws and the middle connecting base. The device has the advantages of being compact in structure, small in occupied space and convenient to operate and control.

Description

Technical Field

[0001] The present invention relates to a battery swapping station, and more particularly to a battery hoisting system for a battery swapping station or a charging, swapping, and supplementing energy station. Background Art

[0002] In the field of electric trucks, due to the large number of batteries equipped, the charging time is relatively long. In this field, the batteries are usually fixed on a support frame to form a battery pack that can be disassembled and replaced as a whole, and a battery swapping station dedicated to charging the battery pack is set up so that the battery pack on the vehicle can be quickly replaced when the power is insufficient. With the development of the industry, to meet diverse needs, the functions of the battery swapping station have also been extended in this field, forming a charging, swapping, and supplementing energy station that can not only quickly replace the battery pack but also directly charge the battery pack on the vehicle. The overhead crane is an important part of the battery swapping station or the charging, swapping, and supplementing energy station, and plays a role in hoisting the battery pack between the vehicle and the charging position. The spreader used in the traditional overhead crane has problems such as inconvenient connection and low automation. For example, the "power battery spreader for new energy vehicles" disclosed in the patent with the publication number CN215946488U. To solve the problems existing in the traditional overhead crane, technicians in this field have developed a hoisting system that can automatically connect to the battery pack through electric control. For example, the "battery hoisting system for a truck battery swapping station" disclosed in the patent with the publication number CN116119539A mainly includes a longitudinal movement frame, a transverse movement frame, a lifting mechanism, and a battery spreader. Among them, the longitudinal movement frame is installed in the battery swapping station box through longitudinal guide rails, the transverse movement frame is installed on the longitudinal movement frame through transverse guide rails, the lifting mechanism includes a lifting speed reducer, four fixed pulleys, and four steel wire ropes installed on the transverse movement frame, and the battery spreader includes a docking frame, four movable pulleys, and four hook assemblies. The four movable pulleys are connected to the lifting mechanism through four steel wire ropes. This structure of the battery hoisting system has problems such as complex structure, large occupied space, and poor stability in actual application because the speed reducer and the fixed pulleys are set on the transverse movement frame, while the movable pulleys are set on the battery spreader. Summary of the Invention

[0003] The object of the present invention is to provide a battery hoisting system for a charging, swapping, and supplementing energy station, which has the advantages of compact structure, small occupied space, convenient operation, stable and reliable performance, and strong practicability.

[0004] To solve the above problems existing in the prior art, the present invention provides a battery lifting and transferring system for a charging, swapping and replenishing energy station, which includes a longitudinal moving frame, a transverse moving frame and a battery lifting hook. The longitudinal moving frame moves longitudinally along two longitudinal guide rails fixed in the box body of the replenishing energy station. The transverse moving frame moves transversely along two transverse guide rails fixed on the longitudinal moving frame. Four fixed pulleys are symmetrically distributed on the transverse moving frame. The battery lifting hook includes a docking frame and two groups of hook assemblies. Two lifting speed reducers symmetrically distributed longitudinally are provided on the docking frame. The input shaft of the lifting speed reducer is connected with a lifting drive motor. The output shaft of the lifting speed reducer is respectively installed with rope winding wheels at both ends. Four sling loop assemblies corresponding to the rope winding wheels are also provided on the docking frame. The four sling loop assemblies respectively bypass the four fixed pulleys through steel wires and are connected with the corresponding rope winding wheels. The two groups of hook assemblies are symmetrically distributed longitudinally. The hook assembly includes an intermediate connecting seat fixed at the bottom of the docking frame. Side connecting seats fixed at the bottom of the docking frame are respectively provided on the transverse sides of the intermediate connecting seat. A rotating shaft is installed on the side connecting seat. A lifting claw is fixed at the lower end of the rotating shaft. A cylinder is provided between the lifting claw and the intermediate connecting seat.

[0005] Further, in a battery lifting and transferring system for a charging, swapping and replenishing energy station of the present invention, four longitudinal moving rollers symmetrically distributed and located on the longitudinal guide rails are installed on the longitudinal moving frame. A longitudinal speed reducer is also installed on the longitudinal moving frame. The input shaft of the longitudinal speed reducer is connected with a longitudinal drive motor. The output shaft of the longitudinal speed reducer is respectively connected with the two longitudinal moving rollers through longitudinal transmission shafts.

[0006] Further, in a battery lifting and transferring system for a charging, swapping and replenishing energy station of the present invention, four transverse moving rollers symmetrically distributed and located on the transverse guide rails are installed on the transverse moving frame. A transverse speed reducer is also installed on the transverse moving frame. The input shaft of the transverse speed reducer is connected with a transverse drive motor. Driving sprockets are respectively installed at both ends of the output shaft of the transverse speed reducer through transverse transmission shafts. Driven sprockets are respectively provided on both sides of the driving sprocket. A chain with both ends fixed and corresponding to the driving sprocket is provided on the longitudinal moving frame. The chain bypasses the corresponding driving sprocket and driven sprocket in a shape of "J".

[0007] Further, in a battery lifting and transferring system for a charging, swapping and replenishing energy station of the present invention, first proximity switches corresponding to the four sling loop assemblies are provided at the bottom of the docking frame. The sling loop assembly includes a first guide rod passing through the docking frame. A sling loop for connecting a steel wire is fixed at the upper end of the first guide rod. An adjusting nut is installed at the lower end of the first guide rod. A spring seat cooperating with the first proximity switch is sleeved on the first guide rod above the adjusting nut. A first spring is sleeved on the first guide rod between the spring seat and the docking frame.

[0008] Further, for a battery hoisting system of a charging, swapping, and supplementing energy station according to the present invention, four symmetrically distributed transverse guide columns are fixed to the bottom of the docking frame. The lower ends of the transverse guide columns are provided with inclined surfaces that are lower inside and higher outside in the transverse direction. Transverse guard plates are fixed to the inclined surfaces and outer sides of the transverse guide columns. The lower end of the intermediate connection seat is provided with an inclined surface that is lower outside and higher inside in the longitudinal direction. Longitudinal guard plates are fixed to the inclined surface and inner side of the intermediate connection seat. An auxiliary guard plate is fixed to the outside of the side connection seat. A triangular auxiliary guard block is fixed to the outside of the lifting claw. The transverse guard plates, longitudinal guard plates, auxiliary guard plates, and auxiliary guard blocks are all made of nylon.

[0009] Further, for a battery hoisting system of a charging, swapping, and supplementing energy station according to the present invention, a descending-in-place detection component is installed on the docking frame. The descending-in-place detection component includes an L-shaped bracket fixed to the docking frame. Two second proximity switches are fixed to the vertical part of the L-shaped bracket. A second guide rod is installed on the horizontal part of the L-shaped bracket through a guide sleeve. A retaining ring is provided at the lower end of the second guide rod. A second spring is sleeved on the second guide rod between the retaining ring and the guide sleeve. A limit sleeve that cooperates with the second proximity switch is fixed to the upper end of the second guide rod.

[0010] Further, for a battery hoisting system of a charging, swapping, and supplementing energy station according to the present invention, two descending limit supports and two positioning columns are fixed to the docking frame. The two descending limit supports are correspondingly arranged at the transverse two sides of the docking frame. A buffer pad made of rubber material is fixed to the bottom of the descending limit support. The two positioning columns are arranged on the upper side of the docking frame and are diagonally distributed; a positioning cylinder that cooperates with the positioning column is fixed to the bottom of the transverse movement frame.

[0011] Further, for a battery hoisting system of a charging, swapping, and supplementing energy station according to the present invention, a transfer member is fixed to the intermediate connection seat, and a hinge member is fixed to the lifting claw. The two ends of the air cylinder are respectively connected to the transfer member and the hinge member through pin shafts; an axial ring is provided on the peripheral wall of the rotating shaft. A locking nut is installed at the upper end of the rotating shaft. A pressure plate is fixed to the top of the rotating shaft through screws. A limit ring is provided on the inner wall of the shaft hole of the side connection seat. Roller bearings are respectively clamped between the limit ring and the axial ring and the locking nut.

[0012] Further, for a battery hoisting system of a charging, swapping, and supplementing energy station according to the present invention, two longitudinal limit components that are spaced apart in the transverse direction are respectively provided on the longitudinal two sides of the transverse movement frame. The longitudinal limit component includes a transfer support fixed to the transverse movement frame through bolts. A horizontally arranged limit roller is installed on the transfer support. The limit roller is a roller bearing; baffles are respectively fixed to the transverse two sides of the transverse movement frame. A buffer plate made of rubber material is fixed to the baffle.

[0013] Furthermore, in a battery hoisting and transferring system of a charging, swapping and supplementing energy station according to the present invention, proximity sensors and travel switches are installed on the transverse movement frame. Support plates fixed to the transverse movement frame are respectively arranged on both sides of the fixed pulley. A support rod distributed along the upper half circumference of the fixed pulley is arranged between the support plates, and a rope blocking roller is sleeved on the support rod. Pressing rope rollers are respectively installed on the docking frame at positions corresponding to the respective rope winding wheels through wheel brackets.

[0014] Compared with the prior art, the battery hoisting system of the charging, swapping and supplementing energy station of the present invention has the following advantages: By setting a longitudinal moving frame, a transverse moving frame and a battery sling, the longitudinal moving frame moves longitudinally along two longitudinal guide rails fixed in the box body of the energy supplementing station, the transverse moving frame moves transversely along two transverse guide rails fixed on the longitudinal moving frame, and four fixed pulleys are symmetrically arranged on the transverse moving frame. The battery sling is provided with a docking frame and two sets of hook assemblies. Two lifting speed reducers symmetrically distributed longitudinally are arranged on the docking frame. The input shaft of the lifting speed reducer is connected to a lifting drive motor. Rope winding wheels are respectively installed at both ends of the output shaft of the lifting speed reducer. Four sling assemblies corresponding to the rope winding wheels are arranged on the docking frame. Among them, the four sling assemblies respectively bypass the four fixed pulleys through steel wires and are connected to the corresponding rope winding wheels. The two sets of hook assemblies are symmetrically arranged longitudinally. The hook assembly is provided with an intermediate connecting seat fixed at the bottom of the docking frame. Side connecting seats fixed at the bottom of the docking frame are respectively arranged on the transverse sides of the intermediate connecting seat. A rotating shaft is installed on the side connecting seat, a lifting claw is fixed at the lower end of the rotating shaft, and a cylinder is arranged between the lifting claw and the intermediate connecting seat. Thus, a battery hoisting system for a charging, swapping and supplementing energy station with a compact structure, small occupied space, convenient operation, stable and reliable performance and strong practicability is formed. In practical applications, when the lifting drive motor and the lifting speed reducer wind and unwind the steel wire through the rope winding wheel, the battery sling can be lifted and lowered by using the change in the length of the steel wire and the cooperation of the fixed pulley. When the transverse moving frame moves along the transverse guide rail, the battery sling can be moved transversely. When the longitudinal moving frame moves along the longitudinal guide rail, the transverse moving frame and the battery sling can be moved longitudinally, thus realizing the omnidirectional movement of the battery sling. When hoisting the battery, first move the battery sling directly above the battery pack, then release the steel wire from the rope winding wheel through the lifting drive motor and the lifting speed reducer until the battery sling falls on the battery pack. Then, drive the corresponding lifting claws to rotate to the lower side of the support frame side beam of the battery pack through each cylinder to hook the battery pack, thus realizing the connection between the battery sling and the battery pack. Subsequently, wind the steel wire back to the rope winding wheel through the lifting drive motor and the lifting speed reducer until the docking frame is docked with the transverse moving frame. Finally, move the battery pack from the charging position to the vehicle or from the vehicle to the charging position, and release the connection between the battery sling and the battery pack. Thus, a battery hoisting is completed. When releasing the connection between the battery sling and the battery pack, just rotate each lifting claw to the initial position. Compared with the prior art, by moving the original lifting speed reducer and rope winding wheel arranged on the transverse moving frame to the battery sling and removing the original movable pulley arranged on the battery sling, on the one hand, the structural layout is optimized, the integration degree of the battery sling is improved, and the overall height after the battery sling is docked with the transverse moving frame is reduced, which is beneficial to reducing the height and occupied space of the swapping station or the energy supplementing station. On the other hand, by removing the movable pulley, the path of the steel wire during the lifting process is reduced, and the stability of the lifting action is improved.Meanwhile, in the present invention, by providing an intermediate connecting seat, side connecting seats, a rotating shaft, a lifting claw, and a cylinder in the lifting hook assembly, and directly driving the lifting claw to rotate by the cylinder, compared with the prior art, transmission mechanisms such as a sliding plate, a guiding hole, rollers, a guide rail, and a slider are eliminated, improving the stability and reliability.

[0015] The following provides a detailed description of a battery hoisting system for a charging, swapping, and replenishing energy station according to the present invention with reference to the specific embodiments shown in the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of a battery hoisting system for a charging, swapping, and replenishing energy station according to the present invention;

[0017] Figure 2 It is an axonometric view of a battery hoisting system for a charging, swapping, and replenishing energy station according to the present invention;

[0018] Figure 3 It is a front view of a transverse movement frame and a battery lifting tool in the present invention;

[0019] Figure 4 It is a left view of a transverse movement frame and a battery lifting tool in the present invention;

[0020] Figure 5 It is an axonometric view of a transverse movement frame and a battery lifting tool in the present invention;

[0021] Figure 6 It is a front view of a transverse movement frame in the present invention;

[0022] Figure 7 It is a top view of a transverse movement frame in the present invention;

[0023] Figure 8 It is an axonometric... of a transverse movement frame in the present invention Figure 1 ;

[0024] Figure 9 It is an axonometric... of a transverse movement frame in the present invention Figure 2 ;

[0025] Figure 10 It is a front view of a battery lifting tool in the present invention;

[0026] Figure 11 It is a top view of a battery lifting tool in the present invention;

[0027] Figure 12 It is an axonometric... of a battery lifting tool in the present invention Figure 1 ;

[0028] Figure 13 It is an axonometric... of a battery lifting tool in the present invention Figure 2 ;

[0029] Figure 14 It is a front view of a lifting hook assembly in the present invention;

[0030] Figure 15 Is an axonometric view of the hook assembly in the present invention;

[0031] Figure 16 Is Figure 14 The A-A view in;

[0032] Figure 17 Is a structural schematic diagram of the lifting ring assembly in the present invention;

[0033] Figure 18 Is a structural schematic diagram of the descending-in-place detection assembly in the present invention. Specific embodiments

[0034] First of all, it should be noted that the orientation words such as up, down, left, right, front, and back in the present invention are only described according to the drawings for the convenience of understanding, and do not limit the technical solution and the scope of protection claimed in the present invention.

[0035] As Figures 1 to 18 Shown in the specific embodiment of a battery hoisting system for a charging, swapping, and supplementing energy station in the present invention, which includes a longitudinal movement frame 1, a transverse movement frame 2, and a battery hoist 3. The longitudinal movement frame 1 is longitudinally moved along two longitudinal guide rails (not shown in the figure) fixed in the energy supplementing station box body. The transverse movement frame 2 is transversely moved along two transverse guide rails 11 fixed on the longitudinal movement frame 1, and four fixed pulleys 21 are symmetrically installed on the transverse movement frame 2. The battery hoist 3 is provided with a docking frame 31 and two groups of hook assemblies 32, and two lifting speed reducers 33 are symmetrically arranged longitudinally on the docking frame 31. Among them, the input shaft of the lifting speed reducer 33 is connected with a lifting drive motor (not shown in the figure), and the output shaft ends of the lifting speed reducer 33 are respectively installed with rope winding wheels 34. Four lifting ring assemblies 35 corresponding to the rope winding wheels 34 are provided on the docking frame 31. The four lifting ring assemblies 35 respectively bypass the four fixed pulleys 21 through steel wires 36 and are connected with the corresponding rope winding wheels 34; the two groups of hook assemblies 32 are symmetrically arranged longitudinally. The hook assembly 32 is provided with an intermediate connection seat 321 fixed at the bottom of the docking frame 31. Side connection seats 322 fixed at the bottom of the docking frame 31 are respectively arranged on the transverse two sides of the intermediate connection seat 321. A rotating shaft 323 is installed on the side connection seat 322, a claw 324 is fixed at the lower end of the rotating shaft 323, and a cylinder 325 is arranged between the claw 324 and the intermediate connection seat 321 so as to drive the claw 324 to rotate around the rotating shaft 323 through the cylinder 325.

[0036] Through the above settings, a battery lifting and transferring system for a charging and swapping energy station with a compact structure, small space occupation, convenient operation, stable and reliable performance, and strong practicability is formed. In actual application, when the lifting drive motor and the lifting speed reducer 33 wind and unwind the steel wire rope 36 through the rope winding wheel 34, by utilizing the change in the length of the steel wire rope 36 and through the cooperation of the fixed pulley 21, the battery lifting device 3 can be lifted and moved; when the transverse movement frame 2 moves along the transverse guide rail 11, it can drive the battery lifting device 3 to move horizontally, and when the longitudinal movement frame 1 moves along the longitudinal guide rail, it can drive the transverse movement frame 2 and the battery lifting device 3 to move longitudinally, thus realizing the omnidirectional movement of the battery lifting device 3. When lifting a battery, first move the battery lifting device 3 directly above the battery pack, then release the steel wire rope 36 from the rope winding wheel 34 through the lifting drive motor and the lifting speed reducer 33 until the battery lifting device 3 lands on the battery pack. Then, drive the corresponding lifting claws 324 to rotate to the lower side of the support frame side beam of the battery pack through each cylinder 325 to hook the battery pack, thereby realizing the connection between the battery lifting device 3 and the battery pack. Subsequently, wind the steel wire rope 36 back onto the rope winding wheel 34 through the lifting drive motor and the lifting speed reducer 33 until the docking frame 31 is docked with the transverse movement frame 2. Finally, move the battery pack from the charging position to the vehicle or from the vehicle to the charging position, and release the connection between the battery lifting device 3 and the battery pack. Thus, one battery lifting operation is completed. When releasing the connection between the battery lifting device 3 and the battery pack, just rotate each lifting claw 324 to the initial position. Compared with the prior art, in the present invention, the lifting speed reducer 33 and the rope winding wheel 34 originally arranged on the transverse movement frame 2 are moved to the battery lifting device 3, and the movable pulley originally arranged on the battery lifting device 3 is removed. On the one hand, the structural layout is optimized, the integration degree of the battery lifting device is improved, and the overall height after the battery lifting device 3 is docked with the transverse movement frame 2 is reduced, which is beneficial to reducing the height and space occupation of the swapping station or the energy replenishment station. On the other hand, by removing the movable pulley, the path of the steel wire rope 36 during the lifting process is shortened, and the stability of the lifting action is improved. At the same time, in the present invention, by arranging the hook assembly 32 with an intermediate connection seat 321, side connection seats 322, a rotating shaft 323, lifting claws 324, and cylinders 325, and directly driving the lifting claws 324 to rotate by the cylinders 325, compared with the prior art, transmission mechanisms such as a slide plate, a guide hole, rollers, a guide rail, and a slider are omitted, and the stability and reliability are improved.

[0037] As a specific embodiment, for example Figure 2As shown in the figure, the present invention adopts the following longitudinal movement drive mechanism for the longitudinal movement frame 1: Four longitudinal movement rollers 12 are symmetrically distributed and mounted on the longitudinal guide rails on the longitudinal movement frame 1, and a longitudinal movement reduction gear 13 is mounted on the longitudinal movement frame 1. The input shaft of the longitudinal movement reduction gear 13 is connected to a longitudinal movement drive motor (not shown in the figure), and the two ends of the output shaft of the longitudinal movement reduction gear 13 are respectively connected to two longitudinal movement rollers 12 through longitudinal movement transmission shafts 14. This setting drives the longitudinal movement rollers 12 to rotate forward and backward through the longitudinal movement drive motor and the longitudinal movement reduction gear 13, so that the longitudinal movement frame 1 can move longitudinally along the longitudinal guide rails, and has the characteristics of simple structure and convenient operation. It should be noted that the two longitudinal movement rollers 12 connected to the output shaft of the longitudinal movement reduction gear 13 should be symmetrically distributed in the transverse direction and correspondingly located on two longitudinal guide rails to ensure the stability and balance of the structure. As a specific implementation method, as Figures 2 to 9 shown in the figure, the present invention adopts the following transverse movement drive mechanism for the transverse movement frame 2: Four transverse movement rollers 22 are symmetrically distributed and mounted on the transverse guide rails 11 on the transverse movement frame 2, and a transverse movement reduction gear 23 is mounted on the transverse movement frame 2. The input shaft of the transverse movement reduction gear 23 is connected to a transverse movement drive motor (not shown in the figure). Active sprockets 25 are respectively mounted at the two ends of the output shaft of the transverse movement reduction gear 23 through transverse movement transmission shafts 24. Driven sprockets 26 are respectively arranged on both sides of the active sprockets 25. Among them, a chain 15 with both ends fixed and corresponding to the active sprockets 25 is provided on the longitudinal movement frame 1. The chain 15 bypasses the corresponding active sprockets 25 and driven sprockets 26 in a "J" shape. This setting drives the active sprockets 25 to rotate forward and backward through the transverse movement drive motor and the transverse movement reduction gear 23. With the cooperation of the chain 15 and the driven sprockets 26, the transverse movement frame 2 can move transversely along the transverse guide rails 11. Compared with the prior art, by adopting a drive form of sprocket and chain cooperation, and making the chain 15 bypass the active sprockets 25 and two driven sprockets 26 in a "J" shape, the drive reliability and the accuracy of transverse movement control are improved. It should be noted that in the present invention, the transverse movement transmission shafts 24 are usually mounted on the transverse movement frame 2 by bearings to improve the support stability, and the active sprockets 25 are fixed on the transverse movement transmission shafts 24; similarly, in the present invention, a support shaft is fixed on the transverse movement frame 2, and the driven sprockets 26 are mounted on the support shaft by bearings.

[0038] As an optimized solution, as Figures 10 to 13As shown in the figure, in this specific embodiment, a first proximity switch 37 corresponding to each of the four sling assemblies 35 is provided at the bottom of the docking frame 31, and the sling assembly 35 is structured as follows: a first guide rod 351 passing through the docking frame 31 is provided, a sling 352 of a wire rope 36 is fixedly connected to the upper end of the first guide rod 351, an adjusting nut 353 is installed at the lower end of the first guide rod 351, a spring seat 354 cooperating with the first proximity switch 37 is sleeved on the first guide rod 351 above the adjusting nut 353, and a first spring 355 is sleeved on the first guide rod 351 between the spring seat 354 and the docking frame 31. This arrangement will compress the first spring 355 to its minimum length under the action of the gravity of the battery hoist 3 under normal working conditions, and align the spring seat 354 with the first proximity switch 37; when hoisting the battery, if the wire rope 36 continues to be released after the battery hoist 2 falls onto the battery pack, the spring seat 354 will move downward under the elastic force of the first spring 355 and trigger a signal from the first proximity switch 37, achieving the purpose of detecting over-release of the wire rope, effectively avoiding the phenomenon of chaotic entanglement of the wire rope caused by over-release, ensuring the stability of the structure and the lifting action, and having the characteristics of simple structure and sensitive action. As an optimized solution, in this specific embodiment, four horizontally distributed guide columns 38 are fixed at the bottom of the docking frame 31, and an inclined surface that is lower inside and higher outside in the horizontal direction is provided at the lower end of the horizontally distributed guide columns 38, and a horizontal guard plate 381 is fixed on the inclined surface and the outer side surface of the horizontally distributed guide columns 38. Correspondingly, an inclined surface that is lower outside and higher inside in the vertical direction is provided at the lower end of the intermediate connection seat 321, and a vertical guard plate 3211 is fixed on the inclined surface and the inner side surface of the intermediate connection seat 321. This arrangement can play a guiding and positioning role in the horizontal direction by using the four horizontally distributed guide columns 38 and their inclined surfaces when the battery hoist 3 falls and docks with the battery pack, and reduce the sound and wear through the horizontal guard plate 381; the intermediate connection seat 321 of the two sets of hook assemblies 32 and its inclined surface can play a guiding and positioning role in the vertical direction, and reduce the sound and wear through the vertical guard plate 3211. Among them, the side beam of the support frame of the battery pack plays a horizontal limiting and blocking role for the horizontally distributed guide columns 38, and the cross beam of the support frame of the battery pack plays a vertical limiting and blocking role for the intermediate connection seat 321 of the two sets of hook assemblies 32. Similarly, in this specific embodiment, an auxiliary guard plate 3221 is fixed on the outer side of the side connection seat 322, and a triangular auxiliary guard block 3241 is fixed on the outer side of the lifting claw 324, so as to enhance the guiding and protective effects through the auxiliary guard plate 3221 and the auxiliary guard block 3241. In practical applications, the present invention generally makes the horizontal guard plate 381, the vertical guard plate 3211, the auxiliary guard plate 3221 and the auxiliary guard block 3241 made of nylon.

[0039] As an optimization solution, in this specific embodiment, a descending-in-place detection component 39 is installed on the docking frame 31, and the descending-in-place detection component 39 adopts the following structure: an L-shaped bracket 391 is fixed on the docking frame 31, two second proximity switches 392 are fixed on the vertical part of the L-shaped bracket 391, a second guide rod 394 is installed on the horizontal part of the L-shaped bracket 391 through a guide sleeve 393, a retaining ring 395 is arranged at the lower end of the second guide rod 394, a second spring 396 is sleeved on the second guide rod 394 between the retaining ring 395 and the guide sleeve 393, and a limit sleeve 397 that cooperates with the second proximity switches 392 is fixed at the upper end of the second guide rod 394. With this setting, when the battery hoist 3 descends to dock with the battery pack, the support frame of the battery pack will block the second guide rod 394 and compress the second spring 396 through the retaining ring 395. When the battery hoist 3 descends in place, the limit sleeve 397 will trigger signals for both second proximity switches 392, thereby achieving the purpose of in-place detection. At this time, the battery pack can be hooked by rotating the lifting claws; after hooking the battery pack, during the process of the battery hoist 3 ascending and moving with the battery pack, the upper second proximity switch 392 will lose the signal due to a small distance between the docking frame 31 and the support frame. At this time, only the lower second proximity switch 392 has a triggered signal, indicating that the battery pack is on the battery hoist 3, playing a safety reminder role and avoiding misoperation; when the battery hoist 3 disconnects from the battery pack and leaves, the second guide rod 394 and the limit sleeve 397 will automatically reset under the action of the second spring 396. In practical applications, to ensure the reliability of detection, the present invention usually sets two descending-in-place detection components 39 and distributes them on both sides of the docking frame 31. As an optimization solution, this specific embodiment also fixes two descending limit supports 311 and two positioning columns 312 on the docking frame 31. Among them, the two descending limit supports 311 are correspondingly arranged at the horizontal two-side positions of the docking frame 31, and a buffer pad 313 made of rubber material is fixed at the bottom of the descending limit support 311. The two positioning columns 312 are arranged on the upper side of the docking frame 31 and are diagonally distributed, and a positioning cylinder 27 that cooperates with the positioning columns 312 is fixed at the bottom of the transverse movement frame 2. With this setting, when the battery hoist 3 descends to dock with the battery pack, the buffer pad 313 will first contact the support frame of the battery pack and play a buffering role; when the battery hoist 3 ascends to dock with the transverse movement frame 2, inserting the two positioning columns 312 into the corresponding positioning cylinders 27 can keep the battery hoist 3 and the transverse movement frame 2 relatively fixed, improving the stability during the movement process.

[0040] As a specific embodiment, the present invention arranges the cylinder 325 in the following manner: a transfer member 3212 is fixed on the intermediate connecting seat 321, and a hinge member 3242 is fixed on the lifting claw 324. The two ends of the cylinder 325 are respectively connected to the transfer member 3212 and the hinge member 3242 through pins. This arrangement makes the cylinder 325 adopt a hinged manner, improving the smoothness of the rotation action of the lifting claw 324. To ensure the stability of the structure and movement, the present specific embodiment arranges the rotating shaft 323 in the following manner: a shaft collar 3231 is provided on the peripheral wall of the rotating shaft 323, a locking nut 3232 is installed at the upper end of the rotating shaft 323, a pressure plate 3233 is fixed to the top of the rotating shaft 323 by screws, a limiting ring 3222 is provided on the inner wall of the shaft hole of the side connecting seat 322, and roller bearings 326 are respectively installed between the limiting ring 3222 and the shaft collar 3231 and the locking nut 3232. This arrangement has the characteristics of simple structure, convenient disassembly and assembly, and stable and reliable. In practical applications, to ensure the convenience and stability of the connection of the hook assembly 32, the present invention provides an intermediate seat mounting plate at the top of the intermediate connecting seat 321, which is fixed to the bottom of the docking frame 31 by bolts, a side seat mounting plate at the top of the side connecting seat 322, which is fixed to the bottom of the docking frame 31 by bolts, and a side plate that extends upward and is fixed to the outside of the docking frame 31 by bolts is provided on the outside of the side connecting seat 322.

[0041] As a specific implementation manner, to prevent the transverse movement frame 2 from disengaging from the transverse guide rail 11 during movement, the present invention respectively provides two longitudinal limiting components 28 that are horizontally spaced along the longitudinal sides of the transverse movement frame 2, and the longitudinal limiting components 28 adopt the following structure: The adapter support 281 is fixed on the transverse movement frame 2 through bolts, a horizontally arranged limiting roller 282 is installed on the adapter support 281, and the limiting roller 282 adopts a roller bearing. This setting has the characteristics of simple structure, low cost, stability and reliability. During the movement of the transverse movement frame 2 along the transverse guide rail 11, each limiting roller 282 is respectively pressed against the corresponding track provided on the longitudinal movement frame 1, so that the limiting and guiding functions can be achieved without affecting the movement. In practical applications, to prevent the longitudinal movement frame 1 from disengaging from the longitudinal guide rail during movement, the present invention also provides a transverse limiting component on the longitudinal movement frame 1 with the same structure as the longitudinal limiting component 28. As a specific implementation manner, to prevent the transverse movement frame 2 from exceeding the safe movement range, the present invention respectively fixes baffles 29 on the transverse sides of the transverse movement frame 2, and a buffer plate 210 made of rubber material is fixed on the baffles 29. Correspondingly, a limiting block 16 made of rubber material and cooperating with the baffles 29 and the buffer plate 210 is fixed on the longitudinal movement frame 1. As a specific implementation manner, for the convenience of detection and control, the present invention installs a proximity sensor 211 and a travel switch 212 on the transverse movement frame 2. Among them, the proximity sensor 211 is used to detect the position of the transverse movement frame 2, and the travel switch 212 is used to detect the movement distance of the transverse movement frame 2. A detection plate cooperating with the proximity sensor 211 and the travel switch 212 is provided on the longitudinal movement frame 1. As a specific implementation manner, to prevent the steel wire rope 36 from deviating, the present invention also respectively provides support plates 213 fixed on the transverse movement frame 2 on both sides of the fixed pulley 21, and a support rod distributed along the upper half circumference of the fixed pulley 21 is provided between the support plates 213, and a rope blocking roller 214 is sleeved on the support rod; Similarly, the present invention installs a rope pressing roller 315 on the docking frame 31 at positions corresponding to the respective rope winding wheels 34 through wheel brackets 314.

[0042] The above embodiments are only descriptions of the preferred implementation manners of the present invention, and do not limit the scope of protection of the present invention. Without departing from the design concept of the present invention, various deformations made by those skilled in the art based on the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A battery lifting and transporting system for a charging, swapping and supplementing energy station, comprising a longitudinal moving frame (1), a transverse moving frame (2) and a battery sling (3), characterized in that, The longitudinal moving frame (1) moves longitudinally along two longitudinal guide rails fixed in the box body of the energy replenishment station. The transverse moving frame (2) moves transversely along two transverse guide rails (11) fixed on the longitudinal moving frame (1). Four fixed pulleys (21) are symmetrically distributed on the transverse moving frame (2). The battery lifting device (3) includes a docking frame (31) and two groups of hook assemblies (32). Two lifting speed reducers (33) symmetrically distributed longitudinally are provided on the docking frame (31). The input shaft of the lifting speed reducer (33) is connected with a lifting drive motor. Rope winding wheels (34) are respectively installed at both ends of the output shaft of the lifting speed reducer (33). Four sling assemblies (35) corresponding to the rope winding wheels (34) are also provided on the docking frame (31). The four sling assemblies (35) respectively bypass the four fixed pulleys (21) through steel wires (36) and are connected with the corresponding rope winding wheels (34). The two groups of hook assemblies (32) are symmetrically distributed longitudinally. The hook assembly (32) includes an intermediate connecting seat (321) fixed at the bottom of the docking frame (31). Side connecting seats (322) fixed at the bottom of the docking frame (31) are respectively provided on the two transverse sides of the intermediate connecting seat (321). A rotating shaft (323) is installed on the side connecting seat (322). A claw (324) is fixed at the lower end of the rotating shaft (323). A cylinder (325) is provided between the claw (324) and the intermediate connecting seat (321).

2. The battery hoisting and transferring system of the charging, replacing and supplementing energy station according to claim 1, wherein Four longitudinal moving rollers (12) symmetrically distributed and located on the longitudinal guide rails are installed on the longitudinal moving frame (1). A longitudinal speed reducer (13) is also installed on the longitudinal moving frame (1). The input shaft of the longitudinal speed reducer (13) is connected with a longitudinal drive motor. Both ends of the output shaft of the longitudinal speed reducer (13) are respectively connected with two longitudinal moving rollers (12) through longitudinal transmission shafts (14).

3. The battery hoisting system of the charging, replacing and supplementary energy station according to claim 2, wherein, Four transverse moving rollers (22) symmetrically distributed and located on the transverse guide rails (11) are installed on the transverse moving frame (2). A transverse speed reducer (23) is also installed on the transverse moving frame (2). The input shaft of the transverse speed reducer (23) is connected with a transverse drive motor. Driving sprockets (25) are respectively installed at both ends of the output shaft of the transverse speed reducer (23) through transverse transmission shafts (24). Driven sprockets (26) are respectively provided on both sides of the driving sprocket (25). A chain (15) with both ends fixed and corresponding to the driving sprocket (25) is provided on the longitudinal moving frame (1). The chain (15) bypasses the corresponding driving sprocket (25) and driven sprocket (26) in a zigzag shape.

4. The battery lifting and transporting system of the charging, replacing and supplementing energy station according to claim 3, wherein The bottom of the docking frame (31) is provided with first proximity switches (37) corresponding one by one to four sling assemblies (35). The sling assembly (35) includes a first guide rod (351) passing through the docking frame (31). At the upper end of the first guide rod (351), a sling (352) for connecting a wire rope (36) is fixed. At the lower end of the first guide rod (351), an adjusting nut (353) is installed. A spring seat (354) cooperating with the first proximity switch (37) is sleeved on the first guide rod (351) above the adjusting nut (353). A first spring (355) is sleeved on the first guide rod (351) between the spring seat (354) and the docking frame (31).

5. The battery hoisting and transferring system of the charging, replacing and supplementing energy station according to claim 4, wherein Four symmetrically distributed transverse guide columns (38) are fixed to the bottom of the docking frame (31). The lower ends of the transverse guide columns (38) are provided with inclined surfaces that are lower inside and higher outside in the transverse direction. A transverse guard plate (381) is fixed to the inclined surface and the outer side surface of the transverse guide column (38). The lower end of the intermediate connecting seat (321) is provided with an inclined surface that is lower outside and higher inside in the longitudinal direction. A longitudinal guard plate (3211) is fixed to the inclined surface and the inner side surface of the intermediate connecting seat (321). An auxiliary guard plate (3221) is fixed to the outer side of the edge connecting seat (322). A triangular auxiliary guard block (3241) is fixed to the outer side of the lifting claw (324). The transverse guard plate (381), the longitudinal guard plate (3211), the auxiliary guard plate (3221), and the auxiliary guard block (3241) are all made of nylon.

6. The battery hoisting system of the charging, replacing and supplementing energy station according to claim 5, characterized in that A lowering-in-place detection assembly (39) is installed on the docking frame (31). The lowering-in-place detection assembly (39) includes an L-shaped bracket (391) fixed to the docking frame (31). Two second proximity switches (392) are fixed to the vertical part of the L-shaped bracket (391). A second guide rod (394) is installed on the horizontal part of the L-shaped bracket (391) through a guide sleeve (393). A retaining ring (395) is provided at the lower end of the second guide rod (394). A second spring (396) is sleeved on the second guide rod (394) between the retaining ring (395) and the guide sleeve (393). A limit sleeve (397) cooperating with the second proximity switch (392) is fixed to the upper end of the second guide rod (394).

7. The battery lifting and transporting system of the charging, replacing and replenishing energy station according to claim 6, wherein Two lowering limit supports (311) and two positioning columns (312) are fixed to the docking frame (31). The two lowering limit supports (311) are correspondingly arranged at the transverse two-side positions of the docking frame (31). A buffer pad (313) made of rubber material is fixed to the bottom of the lowering limit support (311). The two positioning columns (312) are arranged on the upper side of the docking frame (31) and are diagonally distributed. A positioning cylinder (27) cooperating with the positioning column (312) is fixed to the bottom of the transverse movement frame (2).

8. The battery hoisting system of the charging, replacing and supplementing energy station according to claim 7, wherein A transfer member (3212) is fixed on the middle connecting seat (321). A hinge member (3242) is fixed on the lifting claw (324). Two ends of the air cylinder (325) are respectively connected with the transfer member (3212) and the hinge member (3242) through pin shafts correspondingly. An axial ring (3231) is arranged on the peripheral wall of the rotating shaft (323). A locking nut (3232) is installed at the upper end of the rotating shaft (323). A pressure plate (3233) is fixed at the top of the rotating shaft (323) through screws. A limiting ring (3222) is arranged on the inner wall of the shaft hole of the side connecting seat (322). Roller bearings (326) are respectively clamped between the limiting ring (3222) and the axial ring (3231) and the locking nut (3232).

9. The battery hoisting system of the charging, replacing and supplementing energy station according to claim 7, characterized in that, Two longitudinal limiting components (28) which are spaced transversely are respectively arranged on the longitudinal two sides of the transverse moving frame (2). The longitudinal limiting component (28) includes a transfer support (281) fixed on the transverse moving frame (2) through bolts. A horizontal limiting roller (282) is installed on the transfer support (281). The limiting roller (282) is a roller bearing. Baffles (29) are respectively fixed on the transverse two sides of the transverse moving frame (2). A buffer plate (210) made of rubber material is fixed on the baffle (29).

10. The battery hoisting system of the charging, replacing and supplementing energy station according to claim 7, characterized in that, A proximity sensor (211) and a travel switch (212) are installed on the transverse moving frame (2). Support plates (213) fixed on the transverse moving frame (2) are respectively arranged on two sides of the fixed pulley (21). A support rod distributed along the upper half circumference of the fixed pulley (21) is arranged between the support plates (213). A rope blocking roller (214) is sleeved on the support rod. Pressure rope rollers (315) are respectively installed through wheel frames (314) at positions corresponding to the respective rope winding wheels (34) on the docking frame (31).

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