CN111605963A - Battery pack conveying mechanism and swap station - Google Patents

Abstract

The present application provides a battery pack conveying mechanism, characterized in that the battery pack conveying mechanism has at least one conveyor, and the conveyors are arranged side by side in the battery pack conveying direction, wherein each of the conveyors includes: a plurality of conveyors. Two rollers are arranged side by side orthogonal to the conveying direction of the battery pack, the roller surface of the roller forms a conveying surface for conveying the battery pack; and a transmission member that drives the rollers to rotate, wherein the transmission member is configured to drive the multiple The rollers rotate synchronously.

Description

Battery pack conveying mechanism and swap station

technical field

The present application relates to a transportation and transmission device for battery packs of electric vehicles, and in particular to a battery pack transportation mechanism and a power exchange station.

Background technique

The equipment that occupies a very important position in the automated production line is the conveyor, which is mainly responsible for the transportation and loading and unloading of materials or objects. At present, the commonly used conveyors in automated production lines include belt conveyors, crawler conveyors, chain conveyors, and electric roller conveyors.

The usual belt conveyor is mainly composed of two end rollers and a closed conveyor belt tightly sleeved on them. For this type of belt conveyor, the roller that drives the conveyor belt to rotate is called the driving roller; the other roller that only changes the direction of the conveyor belt is called the redirecting roller. The driving roller is driven by a motor, and the conveyor belt is dragged by the friction between the driving roller and the conveyor belt. However, this type of belt conveyor is prone to slippage between the conveyor belt and the rollers, thereby reducing the efficiency of conveying objects. At the same time, the conveyor belt is also prone to wear and tear after a period of use, which leads to the necessity of regular replacement of the conveyor belt and increases equipment costs.

Conventional chain conveyors are often provided with multiple chains and rollers, wherein each chain connects two adjacent rollers, ie for each roller it connects two chains respectively. In turn, this connection of the chain rollers forms the chain conveyor. However, it is difficult to arrange a tensioning mechanism in such a chain transmission device, which makes it difficult for the chain of such a chain transmission device to maintain a proper tension state at all times, thereby reducing the transmission efficiency of the chain transmission device.

The electric roller conveying device has a simple structure, and the conveying speed is easy to adjust. Therefore, electric roller devices are often used for material transportation in current production lines. However, the cost of the electric rollers is high and since each roller needs to be driven by a motor, which increases the energy consumption during the operation of the equipment.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a battery pack conveying mechanism, which on the one hand has a simple structure and low maintenance cost of components, and on the other hand can transport objects efficiently.

Specifically, the present application provides the following technical solutions.

The present application provides a battery pack conveying mechanism, wherein the battery pack conveying mechanism has at least one conveyor, and the conveyors are arranged side by side in a battery pack conveying direction, wherein each of the conveyors includes: a plurality of positive The rollers are arranged side by side in the conveying direction of the battery pack, and the roller surface of the roller forms a conveying surface for conveying the battery pack; and a transmission member that drives the roller to rotate, wherein the transmission member is configured to drive the plurality of rollers Synchronized rotation.

Optionally, according to an embodiment of the present application, the transmission member is configured as a chain-sprocket mechanism, wherein the chain-sprocket mechanism includes a sprocket disposed at the end of each roller and a ring that surrounds and engages Chains of all said sprockets.

Optionally, according to an embodiment of the present application, the chain-sprocket mechanism further includes at least one tensioning mechanism arranged in the surrounding direction of the chain and supporting the chain, and the tensioning mechanism adjusts the tensioning mechanism. The tension of the chain.

Optionally, according to an embodiment of the present application, wherein the tensioning mechanism includes at least a pair of end tensioning mechanisms, wherein two end tensioning mechanisms in each pair of end tensioning mechanisms are in the In the chain encircling region, the rollers adjacent to the ends are arranged in correspondence with each other and support the end sections of the chain.

Optionally, according to an embodiment of the present application, two end tensioning mechanisms in each pair of end tensioning mechanisms are arranged above and/or below the rollers of the end portions corresponding to each other, using to support the upper and/or lower half of the chain end section.

Optionally, according to an embodiment of the present application, wherein the tensioning mechanism includes an intermediate tensioning mechanism arranged outside the chain encircling region and spaced apart from the rollers, the intermediate tensioning mechanism supporting the rollers the middle section of the chain between.

Optionally, according to an embodiment of the present application, all of the middle tensioning mechanisms are supported on the upper half and/or the lower half of the chain middle section. Optionally, according to an embodiment of the present application, the tensioning mechanism includes a tensioning wheel engaged with the chain.

Optionally, according to one embodiment of the present application, each tensioning mechanism is adjusted independently of each other.

Optionally, according to one embodiment of the present application, the tensioning mechanism of each conveyor is independently adjusted relative to the tensioning mechanism of the other conveyor.

Optionally, according to an embodiment of the present application, the battery pack conveying mechanism further includes a drive assembly, the drive assembly includes a drive element and outputs driven by the one drive element, the number of which corresponds to the number of conveyors part, and the output part drives the transmission parts respectively.

Optionally, according to an embodiment of the present application, the battery pack conveying mechanism further includes a drive assembly, the drive assembly includes a motor and at least one parallel output shaft with two ends driven by the motor, wherein , the two ends of the parallel output shafts are configured as sprockets and are force-transmittingly engaged with the chain.

Optionally, according to an embodiment of the present application, the drive assembly is arranged in a space between two adjacent conveyors.

Optionally, according to one embodiment of the present application, the drive assembly is configured to provide power to the conveyor in the opposite direction so that the conveyor moves in a direction from its head end to its end or from said end to all directions. Transport the battery pack in the direction of the head end.

According to another aspect of the present application, the present application further provides a battery swap station, the battery swap station includes the battery pack conveying mechanism according to any of the above optional solutions for moving in, removing and storing batteries.

Description of drawings

The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easily understood by those skilled in the art that these drawings are only for the purpose of illustration, and are not intended to limit the protection scope of the present application. In addition, like numerals in the figures are used to designate like parts, wherein,

1 is a perspective view of a battery pack conveying mechanism disclosed according to an embodiment of the present application;

FIG. 2 is an inverted perspective view of the disclosed battery pack conveying mechanism according to an embodiment of the present application; and

3 is an exploded view of a battery pack transport mechanism disclosed in accordance with one embodiment of the present application.

Detailed ways

It is easy to understand that, according to the technical solutions of the present application, without changing the essential spirit of the present application, those of ordinary skill in the art can propose a variety of alternative structural modes and implementation modes. Therefore, the following specific embodiments and the accompanying drawings are only exemplary descriptions of the technical solutions of the present application, and should not be regarded as the whole of the present application or as limitations or restrictions on the technical solutions of the present application.

Orientation terms such as upper, lower, left, right, front, rear, front, back, top, bottom, head end, tail end, etc. mentioned or possibly mentioned in this specification are relative to the configurations shown in the drawings By definition, they are relative concepts, so they may change accordingly according to their different locations and different states of use. Therefore, these and other terms of orientation should not be construed as limiting.

The battery pack conveying mechanism 100 according to the embodiment of the present application is described in detail with reference to FIGS. 1 to 3 . By way of example, the battery pack transport mechanism 100 shown in FIGS. 1 to 3 includes two conveyors 1 and a drive assembly 2 arranged side by side in the battery pack transport direction. Specifically, the conveyor 1 further includes a transmission element 11 , a driven part 12 and a tensioning mechanism 13 , wherein the transmission element 11 can be exemplarily configured as an endless closed chain or a transmission toothed belt. , which encircles a part of the driven part 12 in a form-fitting manner and thereby drives the driven part to rotate at the same time for conveying the object or part of the object. In the embodiment shown in FIGS. 1 and 3 , the driven part 12 is optionally configured as a plurality of rollers arranged side by side transversely to the conveying direction of the battery pack conveying mechanism. Here, the roller surfaces of the plurality of rollers form a conveying surface for conveying the battery pack. It can be seen from the figures that the transmission elements, which are designed as chains or conveyor belts, surround the ends of the rollers in order to drive the rollers to rotate about their respective fixed axes. As can be seen from FIGS. 1 to 3 , the chain or conveyor toothed belt 11 surrounds one end of the roller 121 , which is transverse to the conveying direction, for driving the roller to rotate. In order to realize this type of transmission of the transmission element, the transmission element can be embodied here as a sprocket-chain 11 mechanism by way of example, wherein the sprocket 122 is mounted on the end of the roller transverse to the conveying direction of the battery pack conveying mechanism. This construction method overcomes the disadvantage that the chain or the conveyor belt is easily worn under the condition that the conveyor belt or the rubber-coated chain is directly used as the conveyor surface. At the same time, the transmission mode of the sprocket-chain structure avoids the traditional shortcoming of slipping between components when driving by friction, thereby improving the transmission efficiency of the battery pack conveying mechanism.

It should be explained here that, since the transmission element of the conveyor disclosed in the present application is an annular closed transmission element, in order to make the components and component positions described in the following embodiments more clear, the following provisions are made here. : Seen along the conveying direction, the annular conveying element section corresponding to the conveying surface formed by the follower is called the upper half of the conveying element section. Conversely, the other half of the annular transport element is referred to as the lower half of the transport element section. Furthermore, the two annular end sections of the annularly closed conveyor element are referred to as conveyor element end sections, wherein the conveyor element end section corresponding to the conveyor surface formed by the output is referred to as the conveyor element end The top half of the segment. Similarly, the conveying element section between two adjacent rollers is called the conveying element middle section, wherein the conveying element middle section corresponding to the conveying surface formed by the follower is called the conveying element middle section the first half of . It should be noted that the above provisions are only for the purpose of explaining the technical solutions disclosed in the present application more clearly and clearly, and should not be regarded as a limitation on the protection scope of the technical solutions of the present application.

In some embodiments of the present application, in order to ensure that the chain of the sprocket-chain mechanism can always have a certain degree of tension, thereby improving the transmission efficiency, the battery pack transmission mechanism disclosed in the present application also has at least one tensioning mechanism 13, The tensioning mechanism 13 supports the chain, preventing it from sagging due to its own weight and ensuring its tension.

Here, as can be seen from FIGS. 1 to 3 , preferably, the tensioning mechanism 13 includes at least one pair of end tensioning mechanisms, wherein two end tensioning mechanisms in each pair of end tensioning mechanisms 131 In the chain encircling region, the rollers adjacent to the ends are arranged in correspondence with each other, and the end tensioning mechanism supports the end sections of the chain. Here, it should be explained that the encircling region of the chain refers to the annular inner space enclosed by the endless chain after meshing with the sprocket and tensioning by the tensioning mechanism. Furthermore, the arrangement corresponding to each other should be understood to mean that the two tensioning mechanisms of each pair of end tensioning mechanisms are respectively arranged at the same relative position with respect to the rollers. This arrangement ensures that the chain can turn all the rollers smoothly.

From the above explanation, optionally, the two end tensioning mechanisms 131 in each pair of end tensioning mechanisms may be arranged above and/or below the rollers of the end portions corresponding to each other, supporting the chain The upper and/or lower half of the end section.

In addition, the tensioning mechanism 13 also comprises an intermediate tensioning mechanism 132 arranged outside the chain encircling area, spaced apart from the rollers, the intermediate tensioning mechanism 132 supporting the intermediate section of the chain between the rollers.

Optionally, the middle tensioning mechanism 132 may be fully supported on the upper and/or lower half of the chain middle section. .

For example, as can be seen from FIGS. 1 to 3 , each end tensioning mechanism 131 of a set of end tensioning mechanisms is arranged in correspondence with each other on the chain around the first roller 121 and/or the last in the conveying direction. In a section of rollers 121, namely in the chain end section, to support the above-mentioned chain end section and to engage with the chain, so that the end tensioning mechanism can adjust the tension of the entire chain At least one intermediate tensioning mechanism 132 is provided in the segment of the chain between every two adjacent rollers 121, ie, in the middle segment of the chain. In the embodiment shown in FIGS. 1 to 3 , in the middle section of the chain between every two adjacent rollers 121 there are arranged intermediate tensioning mechanisms 132 , more precisely these intermediate tensioning mechanisms Arrangement on the same side of all rollers along the conveying direction makes it easier to adjust the tension of the middle section of the chain in one direction.

Further preferably, referring to FIGS. 1 to 3 , in order to prevent the upper half of the endless chain 11 from sagging downward when the rollers 121 are driven, two end tensioning mechanisms are supported on the upper half of the end chain end sections. part. This arrangement avoids the disadvantage that the upper chain hangs down due to slack and interferes with the lower half of the chain segment or other components.

At the same time, the middle tensioning mechanism 132 is supported on the lower half of the chain middle section and is engaged with the chain, so that on the one hand, the lower half of the chain middle section can also be supported, and on the other hand, the chain can be supported The tension of the middle section can be adjusted.

It is also possible in other embodiments of the present application that only one end tensioning mechanism supports tensioning on the upper half of the end chain section. By also providing an end tensioning mechanism in the conveyor, the support and tension of the transmission parts of the conveyor can be adjusted at any time and maintained in an ideal state, which optimizes the structural arrangement of the conveyor and improves the the transmission efficiency of the transmitter.

In some embodiments disclosed in the present application, in each conveyor 1, the end tensioning mechanisms 131 and/or the intermediate tensioning mechanisms 132 are capable of adjusting the tension of the chain 11 independently of each other. At the same time, for a plurality of conveyors 1, the end tensioning mechanism 131 and/or the intermediate tensioning mechanism 132 of each conveyor can also be relative to the end tensioning mechanism 131 and/or the intermediate tensioning mechanism of the other conveyors 1 132 independently adjusts the tension of the associated chain. This independent adjustment of the end tensioning mechanisms and/or the intermediate tensioning mechanisms is advantageous for the support and tension adjustment of each chain segment of each conveyor.

In the embodiment shown in FIGS. 1 to 3 of the present application, the end tensioning mechanism 131, and/or the intermediate tensioning mechanism includes a tensioning wheel 132, wherein the tensioning wheel and the chain are in a form-fitting engagement And can adjust the wrap angle of the chain, so as to achieve the effect of adjusting the tension of the chain.

In some embodiments disclosed in the present application, the battery pack conveying mechanism further includes a drive assembly 2, wherein the drive assembly 2 includes a drive element 21 and at least one output part 22 driven by the one drive element. In the embodiments disclosed in the present application, the output end 221 of the at least one output part 22 is force-transmittingly matched with the transmission element 11 of the conveyor 1 , wherein the output end 221 of the at least one output part 22 is configured the same of. This structure ensures that all the conveyors receive the same driving torque, which is beneficial to achieve a uniform transmission speed of each conveyor.

In the embodiment shown in FIG. 1 and FIG. 3 of the present application, the output part 22 is configured as an output shaft, wherein the two ends of the output shaft are configured as the same output end 221 , and the two ends of the output shaft are configured as the same output end 221 . The output ends 221 are force-transmittingly matched with the transmission members 11 of the two transmitters 1 respectively. This structure of the drive assembly 2 can ensure that all conveyors have a substantially uniform conveying speed on the one hand, and can save the installation space of the battery pack conveying mechanism on the other hand.

In the embodiments shown in Figures 1 to 3 of the present application, the drive assembly is arranged in the space between two adjacent conveyors. This arrangement can save more space for transporting objects.

At the same time, the battery pack conveying mechanism according to the description of the present application can also be provided to a power exchange station for moving in, removing and storing batteries.

The foregoing description is exemplary and not intended to be limiting therein. Various non-limiting embodiments are disclosed herein, however, those of ordinary skill in the art will appreciate that in light of the above teachings various modifications and alterations will come within the scope of the appended claims. Accordingly, it will be understood that within the scope of the appended claims, disclosures other than the specific disclosure may be practiced. For this reason, the appended claims should be studied to determine their true scope and content.

Claims (15)

1. A battery pack conveying mechanism having at least one conveyor arranged side by side in a battery pack conveying direction, wherein each of the conveyors comprises:

a plurality of rollers arranged side by side orthogonally to a battery pack conveying direction, roller surfaces of the rollers forming a conveying surface for conveying the battery pack; and

and the transmission part is used for driving the rollers to rotate, wherein the transmission part is arranged to drive the rollers to rotate synchronously.

2. The battery pack conveying mechanism according to claim 1, wherein the transmission member is configured as a chain-sprocket mechanism, wherein the chain-sprocket mechanism includes a sprocket provided at an end of each roller and a chain that encircles and engages all of the sprockets.

3. The battery pack conveying mechanism according to claim 2, wherein the chain-and-sprocket mechanism further comprises at least one tensioning mechanism arranged in the chain circulating direction to support the chain, by which the tension of the chain is adjusted.

4. A battery pack conveying mechanism according to claim 3, wherein the tensioning mechanism comprises at least one pair of end tensioning mechanisms, wherein the two end tensioning mechanisms of each pair of end tensioning mechanisms are located within the chain wrap area with the rollers adjacent the ends located in correspondence with each other and supporting the end sections of the chain.

5. A battery pack conveying mechanism according to claim 4, wherein the two end tensioning mechanisms of each pair of end tensioning mechanisms are arranged above and/or below the rollers of the ends in correspondence with each other for supporting the upper and/or lower half of the end section of the chain.

6. A battery pack conveying mechanism according to any one of claims 3 to 5, wherein the tensioning mechanism comprises an intermediate tensioning mechanism arranged spaced from the rollers outside the chain wrap region, the intermediate tensioning mechanism supporting the intermediate section of the chain between the rollers.

7. The battery pack conveying mechanism according to claim 6, wherein the intermediate tensioning mechanism is supported entirely on an upper half and/or a lower half of the intermediate section of the chain.

8. The battery pack conveying mechanism according to claim 3, wherein said tensioning mechanism includes a tensioning wheel engaged with said chain.

9. The battery pack delivery mechanism of claim 3, wherein each tensioning mechanism is adjusted independently of each other.

10. The battery pack delivery mechanism of claim 3, wherein the tensioning mechanism of each conveyor is independently adjustable relative to the tensioning mechanism of the other conveyor.

11. The battery pack conveying mechanism according to claim 1, further comprising a drive assembly including one drive member and a number of output portions driven by the one drive member corresponding to the number of conveyors, the output portions respectively driving the transmission members.

12. The battery pack transport mechanism according to claim 2, further comprising a drive assembly including a motor and at least one parallel output shaft driven by the motor and having two ends, wherein the two ends of the parallel output shaft are configured as sprockets for respectively drivingly engaging the chain of the chain-sprocket mechanism.

13. The battery pack conveying mechanism according to claim 11 or 12, wherein the driving assembly is disposed in a space between two adjacent conveyors.

14. A battery pack conveying mechanism according to claim 11 or 12, wherein the drive assembly is configured to provide power to the conveyor in opposite directions such that the conveyor conveys battery packs in a direction from a head end to a tail end thereof or in a direction from the tail end to the head end.

15. A battery swapping station, characterized in that the battery swapping station comprises a battery pack conveying mechanism as claimed in any one of claims 1-14 for moving in, moving out and storing batteries.

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