Battery conveying device

Abstract

The utility model discloses a battery conveying device which comprises an installation platform, a battery bearing platform and a telescopic driving assembly. The key point is that the telescopic driving assembly comprises a sliding seat, a telescopic driving assembly for driving the sliding seat to reciprocate along the battery conveying direction, and a linkage assembly for forming linkage stretching between the sliding seat and the battery bearing platform under the driving of the telescopic driving assembly; the linkage assembly comprises a first chain, a second chain, a first chain wheel and a second chain wheel, the first chain wheel and the second chain wheel are arranged at the two ends of the sliding base respectively, and one end of the first chain is connected with the battery bearing platform. One end of the second chain is connected with the battery bearing platform, and the other end bypasses the second chain wheel and is connected with the mounting platform. By designing the linkage assembly, one driving assembly drives two-stage stretching and retracting, the stretching and retracting amount is large, the structure is simple, and stability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery replacement equipment, and specifically relates to a battery conveying device for battery replacement stations. Background Art

[0002] Battery swapping is an important way to recharge new energy vehicles. To address this issue, battery swapping stations are being established in an increasing number of locations to facilitate timely recharging of new energy vehicles.

[0003] The rapid transportation and transfer of batteries in battery swap stations is one of the most effective links in improving battery swap efficiency. When a battery swap station is equipped with a palletizer, the battery conveying device in the palletizer needs to take over the batteries on the battery swap equipment and transport the batteries to the battery storage rack, as well as take out the batteries on the battery storage rack and place them on the battery swap equipment. The palletizer plays a role in shipping and increases the battery swap time; and when the battery is stored and retrieved through the battery swap equipment, the battery swap equipment can directly place the battery on the battery storage rack or take the battery out of the battery storage rack. Regardless of the form, a battery telescopic device needs to be designed to realize the transfer of batteries between the two devices. In the prior art, the technical solutions disclosed in CN219312731U, CN220502565U, etc. all adopt a one-stage telescopic method and cannot achieve complete telescoping, or only telescope without lifting. Both solutions require a large space. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a battery conveying device, which adopts a two-stage telescopic method. By designing a linkage component between the sliding seat and the battery carrying platform, the battery carrying platform and the sliding seat can be fully telescoped, so that the entire device occupies a small space, has a long telescopic length, reliable telescopic positioning, and can stay at any position in the stroke; the designed lifting component can lift the battery carrying platform and stay at any position in the lifting stroke, and the telescopic and lifting are controlled by a servo motor with high control accuracy.

[0005] The utility model provides a battery conveying device, which comprises a mounting platform, a battery carrying platform arranged on the mounting platform and a reciprocating driving device for driving the battery carrying platform to move back and forth along a battery conveying direction, and the key point is that the reciprocating driving device comprises a sliding seat, a reciprocating driving assembly for driving the sliding seat to move back and forth along the battery conveying direction and a linkage assembly for forming linkage back-and-forth movement between the sliding seat and the battery carrying platform through the driving of the reciprocating driving assembly, the linkage assembly comprises a first chain, a second chain and first and second sprockets arranged at two ends of the sliding seat respectively, one end of the first chain is connected with the battery carrying platform, the other end of the first chain passes around the first sprocket and is connected with the mounting platform, one end of the second chain is connected with the battery carrying platform, the other end of the second chain passes around the second sprocket and is connected with the mounting platform.

[0006] Further, a first sliding connection assembly is arranged between the sliding seat and the mounting platform, the first sliding connection assembly comprises a first sliding rail fixed on the mounting platform and a first sliding seat fixed on the sliding seat and matched with the first sliding rail.

[0007] Further, the reciprocating driving assembly comprises a telescopic driving lead screw arranged on the mounting platform, a telescopic driving motor for driving the telescopic driving lead screw to rotate, a telescopic driving nut threadedly connected with the telescopic driving lead screw and connected with the sliding seat.

[0008] Further, a chain tensioning assembly is arranged between the first chain or the second chain and the mounting platform, the chain tensioning assembly comprises a tensioning seat fixed on the mounting platform, a tensioning rod connected with the end of the first chain or the second chain and passing through the tensioning seat, a fixing nut threadedly connected with the end of the tensioning rod and a tensioning spring sleeved on the tensioning rod and limited between the tensioning seat and the fixing nut.

[0009] Further, a second sliding connection assembly is arranged between the battery carrying platform and the sliding seat, the second sliding connection assembly comprises a second sliding rail fixed on the sliding seat and a second sliding seat fixed on the battery carrying platform and matched with the second sliding rail.

[0010] Further, the second sliding seat is fixed on a sliding seat connected with the battery carrying platform, and the two ends of the sliding seat are connected with the ends of the first chain and the second chain respectively.

[0011] Further, the bottom of the battery carrying platform is provided with a lifting assembly, the lifting assembly comprises a lifting lead screw, a lifting drive motor for driving the lifting lead screw to rotate, a lifting nut in threaded connection with the lifting lead screw, a first connecting rod, a second connecting rod, a mounting base and a walking wheel, the lifting nut is connected with a sliding table which is slidingly connected to the battery carrying platform, one end of the first connecting rod is hingedly connected to the battery carrying platform, the other end of the first connecting rod is hingedly connected to the middle part of the mounting base, one end of the second connecting rod is hingedly connected to the sliding table, the other end of the second connecting rod is hingedly connected to the middle part of the mounting base, and the first connecting rod and the second connecting rod share a hinging shaft, the walking wheels are arranged at both ends of the mounting base, and guide columns for guiding the lifting of the battery carrying platform are arranged on the sliding table.

[0012] Further, the bottom of the battery carrying platform is provided with a lifting assembly, the lifting assembly comprises a lifting lead screw, a lifting drive motor for driving the lifting lead screw to rotate, a lifting nut in threaded connection with the lifting lead screw, a first connecting rod, a second connecting rod, a mounting base and a walking wheel, the lifting nut is connected with a sliding table which is slidingly connected to the battery carrying platform, one end of the first connecting rod is hingedly connected to the battery carrying platform, the other end of the first connecting rod is hingedly connected to the middle part of the mounting base, one end of the second connecting rod is hingedly connected to the sliding table, the other end of the second connecting rod is hingedly connected to the middle part of the mounting base, and the first connecting rod and the second connecting rod share a hinging shaft, the walking wheels are arranged at both ends of the mounting base, and guide columns for guiding the lifting of the battery carrying platform are arranged on the sliding table.

[0013] Further, the lifting lead screw comprises a right-threaded driving part and a left-threaded driving part, and the right-threaded driving part and the left-threaded driving part are respectively provided with a set of lifting nuts, first connecting rods, second connecting rods, mounting bases and walking wheels.

[0014] Further, the battery carrying platform comprises a first carrying platform and a second carrying platform which are arranged on both sides of the sliding table respectively, and a connecting plate which is located outside the end of the sliding table and is connected with the first carrying platform and the second carrying platform, linkage assemblies are arranged between the first carrying platform and the sliding table and between the second carrying platform and the sliding table, and lifting assemblies are arranged on the first carrying platform and the second carrying platform.

[0015] The battery carrying platform has the advantages that: 1. The linkage assembly is designed, so that one set of driving assemblies can drive two-stage telescopic movement, the telescopic length is large, the structure is simple and the stability is good; and 2. The lifting assembly is designed on the battery carrying platform, so that the battery carrying platform can be installed on a battery replacing device or a stacker crane to realize the taking and placing of the battery.

[0016] The utility model will be described in detail in connection with the drawings. DRAWINGS

[0017] Figure 1 is the front view of the battery conveying device of the utility model;

[0018] Figure 2 is Figure 1 the side view of the battery conveying device of the utility model;

[0019] Figure 3 is Figure 1 the local enlarged view of A in the battery conveying device of the utility model;

[0020] Figure 4 is the three-dimensional schematic view of the battery conveying device of the utility model;

[0021] Figure 5 is the structural schematic view of the lifting assembly in the battery conveying device of the utility model.

[0022] In the drawings, 1, mounting platform, 2, sliding seat, 3, first chain, 4, second chain, 5, first chain wheel, 6, second chain wheel, 7, first sliding rail, 8, first sliding seat, 9, second sliding rail, 10, second sliding seat, 11, sliding seat, 12, guide column, 13, lifting screw rod, 14, lifting drive motor, 15, lifting nut, 16, first connecting rod, 17, second connecting rod, 18, mounting seat, 19, walking wheel, 20, sliding table, 21, first bearing platform, 22, second bearing platform, 23, connecting plate, 24, tensioning seat, 25, tensioning rod, 26, fixed nut, 27, tensioning spring, 28, telescopic drive screw rod, 29, telescopic drive motor, 30, telescopic drive nut, 31, mounting plate, 32, sliding sleeve, 33, hinged seat. DETAILED DESCRIPTION

[0023] Referring to the drawings, Figures 1-5 The utility model provides a kind of battery conveying device, including mounting platform 1, battery bearing platform being set on mounting platform 1 and the reciprocating drive device of driving battery bearing platform reciprocating movement along battery conveying direction.

[0024] The above-mentioned reciprocating drive device includes a sliding seat 2, a reciprocating drive component that drives the sliding seat 2 to move back and forth along the battery conveying direction, and a linkage component that forms a linkage reciprocating movement between the sliding seat 2 and the battery carrying platform by means of the drive of the reciprocating drive component. The linkage component includes a first chain 3, a second chain 4, and a first sprocket 5 and a second sprocket 6 respectively arranged at both ends of the sliding seat 2. One end of the first chain 3 is connected to the battery carrying platform, and the other end bypasses the first sprocket 5 and is connected to the installation platform 1. One end of the second chain 4 is connected to the battery carrying platform, and the other end bypasses the second sprocket 6 and is connected to the installation platform 1. The two chains form a ring structure with the installation platform 1 and the battery carrying platform. The lengths of the two chains are equal. When the reciprocating drive component drives the sliding seat 2 to move, under the action of the linkage component, the battery carrying platform and the sliding seat 2 are linked to each other and telescoped. Only one set of drive components is required to achieve two-stage telescoping.

[0025] See attached Figure 1 and 2 The battery loading platform includes a first loading platform 21 and a second loading platform 22, respectively positioned on either side of the sliding base 2, and a connecting plate 23, located outside the ends of the sliding base 2 and connecting the outer ends of the first and second loading platforms 21, 22. When transporting batteries, the first and second loading platforms 21, 22 are positioned on either side of the battery's bottom width and work together to support the battery. A linkage assembly is provided between each loading platform and the sliding base 2.

[0026] See attached Figure 1 and 2 A first sliding connection assembly is provided between the sliding seat 2 and the mounting platform 1 to guide the sliding seat 2 during movement. The first sliding connection assembly includes a first slide rail 7 fixed on the mounting platform 1 and a first slide seat 8 fixed on the sliding seat 2 and cooperating with the first slide rail 7.

[0027] See attached Figure 2 A second sliding connection assembly is provided between the first load-bearing platform 21 and the sliding seat 2, and between the second load-bearing platform 22 and the sliding seat 2 to realize the guidance of the battery load-bearing platform when linked. The second sliding connection assembly includes a second slide rail 9 fixed on the sliding seat 2, and a second slide 10 fixed on the first load-bearing platform 21 or the second load-bearing platform 22 and cooperating with the second slide rail 9. The second slide 10 is fixed on a sliding seat 11 connected to the first load-bearing platform 21 or the second load-bearing platform 22, and the two ends of the sliding seat 11 are respectively connected to the ends of the first chain 3 and the second chain 4. At least two second slide rails 9 are arranged in parallel on each side of the sliding seat 2, and each slide rail is equipped with at least two second slides 10 to ensure structural strength.

[0028] See attached Figure 1 and 3Chain tensioning assemblies are installed between the first chain 3 and the mounting platform 1, and between the second chain 4 and the mounting platform 1, to ensure the chains remain tensioned. The chain tensioning assemblies include a tensioning seat 24 fixed to the mounting platform 1, a tensioning rod 25 connected to the end of the first chain 3 or the second chain 4 and passing through the tensioning seat 24, a fixing nut 26 threadedly connected to the end of the tensioning rod 25, and a tensioning spring 27 mounted on the tensioning rod 25 and positioned between the tensioning seat 24 and the fixing nut 26.

[0029] See attached Figure 4 The reciprocating drive assembly includes a telescopic drive screw 28 mounted on the mounting platform 1, a telescopic drive motor 29 for rotating the telescopic drive screw 28, and a telescopic drive nut 30 threadedly connected to the telescopic drive screw 28 and connected to the sliding base 2. Alternatively, the reciprocating drive assembly may be a rack and pinion structure driven by a motor.

[0030] Example 1: See attached Figure 1 、 2 , 4 and 5. In this embodiment, a lifting assembly is provided at the bottom of the battery carrying platform. Specifically, a lifting assembly is provided on the first carrying platform 21 and the second carrying platform 22 to realize the lifting and lowering of the batteries on the platform so as to place the batteries on the battery storage rack or remove the batteries from the battery storage rack.

[0031] The above-mentioned lifting assembly includes a lifting screw 13, a lifting drive motor 14 that drives the lifting screw 13 to rotate, a lifting nut 15 threadedly connected to the lifting screw 13, a first connecting rod 16, a second connecting rod 17, a mounting seat 18 and a walking wheel 19.

[0032] Among them, the lifting nut 15 is connected to the slide 20 that is slidably connected to the first bearing platform 21 or the second bearing platform 22. A group of first connecting rods 16 and second connecting rods 17 are arranged on both sides of the mounting seat 18. The four connecting rods share a hinge shaft on the mounting seat 18, and the hinge shaft is located in the middle of the mounting seat 18. The other ends of the two first connecting rods 16 are connected to the bearing platform through their respective hinge seats 33. The two second connecting rods 17 are respectively hinged on both sides of the slide 20 through hinge shafts. Travel wheels 19 are provided at both ends of the mounting seat 18. This design not only ensures the structural strength of the lifting assembly to ensure the bearing capacity, but also ensures that the two travel wheels 19 can smoothly enter the bearing surface of the battery exchange equipment or battery storage rack.

[0033] The lifting screw 13 includes a positive thread drive portion and a negative thread drive portion, each of which is equipped with a set of lifting nuts 15, a first connecting rod 16, a second connecting rod 17, a mounting base 18, and a travel wheel 19. The lifting nut 15 has threads that match its mating drive portion. This design allows for synchronous lifting of both ends of the battery support platform under the drive of a single motor.

[0034] A mounting plate 31 is hinged in the middle of the sliding seat 11, and the two mounting seats 18 in the lifting assembly are both located on the outside of the hinge. The length of the mounting plate 31 is equal to the length of the sliding seat 11. Guide columns 12 for guiding the lifting and lowering of the battery carrying platform are provided on both sides of the mounting plate 31, and a sliding sleeve 32 matching the guide column 12 is provided on the battery carrying platform. Such a design can make the reciprocating movement and lifting of the battery carrying platform independent of each other. By designing the mounting plate 31 hinged to the sliding seat 11, the degree of freedom of the carrying platform can be improved, thereby avoiding the situation where the first carrying platform 21 and the second carrying platform 22 leave the mounting platform 1 and extend out of the platform before entering the load-bearing surface of the battery exchange equipment or the battery storage rack, which will cause an overload and cause the second slide rail 9 to be subjected to excessive force and deform.

[0035] The second embodiment is different from the first embodiment in that a guide post 12 for guiding the battery carrying platform to rise and fall is provided on the sliding seat 11, and a sliding sleeve 32 is provided on the battery carrying platform to match the guide post 12. At least two second slide rails 9 are provided to ensure structural strength.

[0036] In addition, a lifting drive device for driving the installation platform 1 to rise and fall can be provided at the bottom of the installation platform 1 to achieve the lifting of the load-bearing platform. The lifting drive device can be a pin-tooth lifting chain, a scissors-bracing lifting device, an electric cylinder, or other devices that can achieve lifting drive.

[0037] Taking Example 1 as an example, the working process of the device of the present invention when applied to a palletizer to transport batteries to a battery exchange device is as follows.

[0038] Removing the battery from the battery storage rack and placing it on the battery exchange device includes the following steps: 1. The lifting drive motor 14 is started to move the entire battery carrying platform upward and lift the battery in the battery compartment on the battery storage rack; 2. The telescopic drive motor 29 is started to drive the sliding seat 2 to move out of the battery storage rack through the screw and nut transmission structure, and the battery carrying platform is extended and the battery in the battery storage rack is moved out of the battery storage rack and placed above the battery exchange device; 3. The lifting drive motor 14 is started again to move the battery downward and place the battery on the battery exchange device. At this time, the bottom of both ends of the battery are placed on the battery exchange device; 4. The device is reset.

[0039] Placing the batteries on the battery swapping device into the battery storage rack includes the following steps: 1. The telescopic drive motor 29 is started to drive the sliding seat 2 to move out of the battery storage rack through the screw-nut transmission structure, and the battery carrying platform is linked to extend and move to the bottom of the battery in the battery swapping device; 2. The lifting drive motor 14 is started to move the entire battery carrying platform upward and lift the battery on the battery swapping device; 3. The telescopic drive motor 29 is started to drive the sliding seat 2 to move into the battery storage rack through the screw-nut transmission structure, and the battery carrying platform is linked with the sliding seat 2 and moves into the battery storage rack together with the sliding seat 2 and places the battery in the battery compartment of the battery storage rack; 4. The lifting drive motor 14 is started again to move the battery downward and place the battery in the battery compartment. At this time, the bottom of both ends of the battery are placed on the battery compartment.

[0040] The working process of the device of the present invention when applied to battery exchange equipment to remove batteries from the battery storage rack is as follows: 1. The telescopic drive motor 29 is started to drive the sliding seat 2 to move into the battery compartment of the battery storage rack through the screw and nut transmission structure, and the battery carrying platform is simultaneously extended and moved to the bottom of the battery in the battery compartment; 2. The lifting drive motor 14 is started to move the entire battery carrying platform upward and lift the battery; 3. The telescopic drive motor 29 is started to drive the sliding seat 2 to move outside the battery storage rack through the screw and nut transmission structure, and the battery carrying platform is simultaneously retracted and the batteries in the battery storage rack are moved out of the battery storage rack.

[0041] The working process of the device of the present invention when applied to battery replacement equipment to store batteries in a battery storage rack is as follows: 1. The battery carrying platform is first lifted with the battery, and at the same time, the telescopic drive motor 29 is started to drive the sliding seat 2 to move to the battery compartment in the battery storage rack; 2. The lifting drive motor 14 is started to move the entire battery carrying platform downward to place the battery in the battery compartment; 3. The telescopic drive motor 29 is started to drive the sliding seat 2 to move to the outside of the battery storage rack to the initial position through the screw and nut transmission structure to complete the battery storage action.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for protection of the utility model.

Claims

1. A battery conveying device, comprising a mounting platform (1), a battery carrying platform arranged on the mounting platform (1), and a reciprocating drive device for driving the battery carrying platform to move back and forth along a battery conveying direction, characterized in that: The reciprocating drive device comprises a sliding seat (2), a reciprocating drive component for driving the sliding seat (2) to reciprocate along the battery conveying direction, and a linkage component for driving the sliding seat (2) and the battery carrying platform to reciprocate in a linked manner by means of the reciprocating drive component. The linkage component comprises a first chain (3), a second chain (4), and a first sprocket (5) and a second sprocket (6) respectively arranged at two ends of the sliding seat (2). One end of the first chain (3) is connected to the battery carrying platform, and the other end bypasses the first sprocket (5) and is connected to the installation platform (1). One end of the second chain (4) is connected to the battery carrying platform, and the other end bypasses the second sprocket (6) and is connected to the installation platform (1).

2. The battery conveying device according to claim 1, characterized in that: A first sliding connection assembly is provided between the sliding seat (2) and the mounting platform (1), the first sliding connection assembly comprising a first slide rail (7) fixed on the mounting platform (1) and a first slide seat (8) fixed on the sliding seat (2) and cooperating with the first slide rail (7).

3. The battery conveying device according to claim 1, characterized in that: The reciprocating drive assembly comprises a telescopic drive screw (28) arranged on the mounting platform (1), a telescopic drive motor (29) for driving the telescopic drive screw (28) to rotate, and a telescopic drive nut (30) threadedly connected to the telescopic drive screw (28) and connected to the sliding seat (2).

4. The battery conveying device according to claim 1, characterized in that: A chain tensioning assembly is provided between the first chain (3) or the second chain (4) and the mounting platform (1), the chain tensioning assembly comprising a tensioning seat (24) fixed on the mounting platform (1), a tensioning rod (25) connected to the end of the first chain (3) or the second chain (4) and passing through the tensioning seat (24), a fixing nut (26) threadedly connected to the end of the tensioning rod (25), and a tensioning spring (27) sleeved on the tensioning rod (25) and limited between the tensioning seat (24) and the fixing nut (26).

5. The battery conveying device according to any one of claims 1 to 4, characterized in that: A second sliding connection assembly is provided between the battery carrying platform and the sliding seat (2), the second sliding connection assembly comprising a second slide rail (9) fixed on the sliding seat (2) and a second slide seat (10) fixed on the battery carrying platform and cooperating with the second slide rail (9).

6. The battery conveying device according to claim 5, characterized in that: The second slide seat (10) is fixed on a sliding seat (11) connected to the battery carrying platform, and the two ends of the sliding seat (11) are respectively connected to the ends of the first chain (3) and the second chain (4).

7. The battery conveying device according to claim 6, characterized in that: A lifting assembly is provided at the bottom of the battery carrying platform, and the lifting assembly includes a lifting screw (13), a lifting drive motor (14) for driving the lifting screw (13) to rotate, a lifting nut (15) threadedly connected to the lifting screw (13), a first connecting rod (16), a second connecting rod (17), a mounting seat (18) and a walking wheel (19). The lifting nut (15) is connected to a slide (20) slidably connected to the battery carrying platform. One end of the first connecting rod (16) is hinged on the battery carrying platform and the other end is hinged to the middle of the mounting seat (18). One end of the second connecting rod (17) is hinged on the slide (20) and the other end is hinged to the middle of the mounting seat (18). The first connecting rod (16) shares a common hinge shaft. Walking wheels (19) are provided at both ends of the mounting seat (18). A guide column (12) for guiding the lifting and lowering of the battery carrying platform is provided on the sliding seat (11).

8. The battery conveying device according to claim 6, characterized in that: A lifting assembly is provided at the bottom of the battery carrying platform, and the lifting assembly includes a lifting screw (13), a lifting drive motor (14) for driving the lifting screw (13) to rotate, a lifting nut (15) threadedly connected to the lifting screw (13), a first connecting rod (16), a second connecting rod (17), a mounting seat (18) and a walking wheel (19), wherein the lifting nut (15) is connected to a slide (20) slidably connected to the battery carrying platform, and one end of the first connecting rod (16) is hinged to the The battery carrying platform is hinged at one end and the other end is hinged at the middle of the mounting seat (18); one end of the second connecting rod (17) is hinged at the slide (20) and the other end is hinged at the middle of the mounting seat (18); and the first connecting rod (16) shares a hinge axis; walking wheels (19) are provided at both ends of the mounting seat (18); a mounting plate (31) is hinged at the middle of the sliding seat (11); and guide columns (12) for guiding the lifting of the battery carrying platform are provided on both sides of the mounting plate (31).

9. The battery conveying device according to claim 7 or 8, characterized in that: The lifting screw (13) includes a positive thread driving portion and a negative thread driving portion, and the positive thread driving portion and the negative thread driving portion are both equipped with a set of lifting nuts (15), a first connecting rod (16), a second connecting rod (17), a mounting seat (18) and a walking wheel (19).

10. The battery conveying device according to claim 7 or 8, characterized in that: The battery carrying platform comprises a first carrying platform (21) and a second carrying platform (22) respectively arranged on both sides of the sliding seat (2), and a connecting plate (23) located outside the end of the sliding seat (2) and connecting the first carrying platform (21) and the second carrying platform (22), a linkage component is provided between the first carrying platform (21) and the sliding seat (2), and between the second carrying platform (22) and the sliding seat (2), and a lifting component is provided on the first carrying platform (21) and the second carrying platform (22).

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