Transmission mechanism of battery transport equipment and battery transport system

Abstract

The present invention discloses a transmission mechanism and a battery transportation system of a battery transportation device. The battery transportation device is used to transport batteries between multiple battery positions of a battery rack. The battery rack has a guide mechanism arranged in a vertical direction. The battery transportation device includes a battery pick-up and placement mechanism and a transmission mechanism. The transmission mechanism is connected between the battery pick-up and placement mechanism and the guide mechanism, and includes a driving wheel, a transition wheel, and a transmission belt fixed on the guide mechanism at both ends in a vertical direction. The driving wheel and the transition wheel are arranged on the battery pick-up and placement mechanism. The transmission belt passes between the driving wheel and the transition wheel so that there is a preset wrap angle value between the transmission belt and the driving wheel. With the present invention, the transmission mechanism has a simple structure, strong flexibility, a wide range of applications, and is also convenient for expansion design. In addition, there is a preset wrap angle value between the transmission belt and the driving wheel, so that the transmission belt and the driving wheel fit as closely as possible, the transmission is more stable, and the driving wheel is more evenly stressed.

Description

Technical Field

[0001] The invention relates to a transmission mechanism of battery transport equipment and a battery transport system. Background Art

[0002] As the battery charging time of electric vehicles is limited, quick-swap electric vehicles have been accepted by more and more users. They only need to replace the depleted battery and install a fully charged battery in the battery swap station, saving a long battery charging time. The battery swap station is equipped with: battery swap equipment for battery removal or installation, battery transport equipment for transporting batteries, and charging equipment for charging batteries.

[0003] Existing battery transfer devices usually achieve lifting and movement through a guide mechanism, a transmission mechanism, and a drive mechanism, thereby transferring batteries between battery compartments. The Chinese patent application with publication number CN110901601A discloses an AGV charging station, which adopts the principle of multi-axis linkage and the design of a multi-axis system, specifically exchanges and charges batteries in the X-axis, Y-axis, Z-axis, and battery pulling and pushing directions, removes batteries from the AGV trolley, and delivers batteries into a load-bearing frame.

[0004] However, the transfer device disclosed in the above-mentioned prior art has a complex structure, low flexibility, and is not easy to expand, which limits its scope of application; moreover, the entire lifting process lacks stability and is prone to tilting, jamming, collision, etc., resulting in damage to the equipment.

[0005] In the prior art, there is also a method of lifting and lowering the car containing the battery by using a sprocket chain structure, but this structure has high requirements for the guide mechanism and requires regular maintenance (such as oiling). Moreover, after long-term use, the wear of the sprocket chain can easily affect the positioning accuracy, resulting in inaccurate positioning between the car and the battery compartment. In addition, the fixed application range of the sprocket chain structure is relatively narrow, which is not convenient for the expansion design of the battery rack and the battery swap station. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the battery transport system in the prior art, such as complex structure, poor flexibility and disadvantageous expansion, and to provide a transmission mechanism battery transport system for a battery transport equipment.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A transmission mechanism of a battery transport device, the battery transport device is used to transport batteries between multiple battery positions of a battery rack, the battery rack has a guide mechanism arranged in a vertical direction, the multiple battery positions are arranged on the battery rack in sequence along the vertical direction, the battery transport device comprises a battery picking and placing mechanism for picking and placing batteries from the battery positions and the transmission mechanism, characterized in that:

[0009] The transmission mechanism is connected between the battery pick-up and placement mechanism and the guide mechanism, and is used to drive the battery pick-up and placement mechanism to achieve vertical lifting and lowering movement along the guide mechanism.

[0010] The transmission mechanism includes a driving wheel, a transition wheel, and a transmission belt fixed on the guide mechanism at both ends along the vertical direction. The driving wheel and the transition wheel are arranged on the battery picking and placing mechanism. The transmission belt passes between the driving wheel and the transition wheel so that there is a preset wrap angle value between the transmission belt and the driving wheel.

[0011] In this solution, the transmission mechanism drives the battery pick-up and placement mechanism to move up and down along the guide mechanism, and the guide mechanism of the battery rack is arranged along the vertical direction, so that the battery pick-up and placement mechanism can move to the corresponding battery compartment to pick up and place the battery. The two ends of the transmission belt are fixedly connected to the guide mechanism, and the driving wheel arranged on the battery pick-up and placement mechanism moves relative to the transmission belt, thereby driving the battery pick-up and placement mechanism to move up and down; and the transition wheel allows the transmission belt to be sleeved on the driving wheel for transmission; in addition, the lifting height of the battery pick-up and placement mechanism can be adjusted by changing the length of the transmission belt. The transmission mechanism has a simple structure, strong flexibility, a wide range of applications, and is also easy to expand the design. In addition, there is a preset wrap angle value between the transmission belt and the driving wheel, and the contact area between the transmission belt and the driving wheel can be adjusted by controlling the wrap angle value, so that the transmission belt and the driving wheel fit as closely as possible, the transmission is more stable, and the driving wheel is more evenly stressed.

[0012] Preferably, the wrap angle between the transmission belt and the driving wheel ranges from 120° to 230°.

[0013] In this solution, the transmission belt and the driving wheel can be in a relatively large and appropriate wrap angle value range, and the transmission will not jitter due to too small a contact area, nor will the transmission be unable to be transmitted due to too large an wrap angle. Within this range, the larger the wrap angle value, the smoother the transmission and the more evenly the force on the driving wheel is applied.

[0014] Preferably, the driving wheel and the transition wheel are configured to allow the transmission belt to pass through, so that the transmission belt fits the driving wheel.

[0015] In this solution, the transition wheel can not only ensure that the transmission belt and the driving wheel have a preset wrap angle value, but also make the transmission belt and the driving wheel fit closely to avoid tooth jumping.

[0016] Preferably, the gap value between the bottom of the meshing teeth of the driving wheel and the transition wheel is between a first thickness value from the bottom of the meshing teeth of the transmission belt to the other side and a second thickness value from the top of the meshing teeth to the other side.

[0017] In this solution, the gap between the driving wheel and the transition wheel is larger than the thickness of the belt body and smaller than the thickness of the entire belt, thereby ensuring that the belt can fit between the driving wheel and the transition wheel during transmission to avoid tooth jumping.

[0018] Preferably, the tooth shape and width of the transmission belt are arranged to have a first functional relationship with the total weight of the battery pick-and-place mechanism and the battery, so that the transmission belt drives the battery pick-and-place mechanism and the battery to move.

[0019] In this solution, by involving the tooth shape and width of the transmission belt according to the first functional relationship to adapt to the corresponding battery pick-up and placement mechanism and the weight requirements of the battery, the transmission can be reliable, the transmission strength is good, the transmission is more stable, and the service life is longer. In specific implementation, the first functional relationship can be obtained from the corresponding manual.

[0020] Preferably, the transition wheel includes a first driven wheel and a second driven wheel, the first driven wheel and the second driven wheel are arranged on both sides of the driving wheel at a preset interval in the vertical direction, and the transmission belt passes between the first driven wheel and the driving wheel, and between the driving wheel and the second driven wheel in sequence.

[0021] In this solution, the first driven wheel and the second driven wheel are arranged on both sides of the driving wheel, so that the transmission belt can form a relatively large wrap angle on the driving wheel, which not only makes the contact area between the transmission belt and the driving wheel larger and the transmission smoother; it can also move smoothly when moving in the up and down directions.

[0022] Preferably, the first driven wheel is arranged to be located at a first position above along the lifting direction, the second driven wheel is arranged to be located at a second position below, and at least one of the first driven wheel and the second driven wheel is arranged to satisfy the clearance value with the driving wheel.

[0023] In this solution, the first driven wheel and the second driven wheel are respectively located on the upper and lower sides of the driving wheel in the lifting direction, so that the transmission belt forms a shape similar to Ω, which can increase the wrap angle of the transmission belt on the driving wheel and improve the stability of the transmission; it can also make the battery transport device in the two movements of lifting and lowering, the transmission belt and the driving wheel are accurately transmitted, and the stability and accuracy of the movement are improved. In addition, at least one of the first driven wheel and the second driven wheel can meet the gap value, which can achieve relative stability in the lifting and lowering movement process.

[0024] Preferably, the distances between the first driven wheel and the second driven wheel and the guide mechanism are set so that the transmission belt can be pressed onto the guide mechanism.

[0025] In this solution, the transmission belt is pressed onto the guide mechanism by the first driven wheel and the second driven wheel, so that the transmission belt can move more smoothly.

[0026] Preferably, at least one of the first driven wheel and the second driven wheel is arranged to be movable in a vertical direction to adjust the fit between the transmission belt and the driving wheel.

[0027] In this solution, at least one of the first driven wheel and the second driven wheel can be adjusted vertically to prevent tooth jumping, and the larger the wrap angle of the transmission belt around the driving wheel, the more uniform the force is, thus avoiding tooth breakage of the driving wheel.

[0028] Preferably, the transmission mechanism further comprises two limit plates which are arranged on both axial sides of the driving wheel and the transition wheel and connected to the driving wheel and the transition wheel, and the limit plates are used to limit the transmission belt from axially disengaging.

[0029] In this solution, limiting plates are connected to both sides of the driving wheel and the transition wheel, and both the driving wheel and the transition wheel are connected to the limiting plates. The limiting plates can not only serve as installation components for the driving wheel and the transition wheel, but also limit the detachment of the transmission belt, and can also adjust the distance between the driving wheel and the transition wheel relative to the guide mechanism, serving as an adjustment component for the position of the transmission mechanism.

[0030] A battery transport system is characterized in that the battery transport system includes a battery transport device, and the battery transport device includes a transmission mechanism of the battery transport device as described above.

[0031] In this solution, the battery transport system adopts the above-mentioned battery transport equipment, so that the battery pick-up and placement mechanism can move to the corresponding battery compartment to pick up and place the battery. The two ends of the transmission belt are fixedly connected to the guide mechanism, and the driving wheel set on the battery pick-up and placement mechanism moves relative to the transmission belt, thereby driving the battery pick-up and placement mechanism to move up and down; and the transition wheel allows the transmission belt to be sleeved on the driving wheel for transmission; in addition, the lifting height of the battery pick-up and placement mechanism can be adjusted by changing the length of the transmission belt. The transmission mechanism has a simple structure, strong flexibility, a wide range of applications, and is also easy to expand the design. In addition, there is a preset wrap angle value between the transmission belt and the driving wheel, and the contact area between the transmission belt and the driving wheel can be adjusted by controlling the wrap angle value, so that the transmission belt and the driving wheel fit as closely as possible, the transmission is more stable, and the driving wheel is more evenly stressed.

[0032] Preferably, the battery transfer system also includes two columns of battery racks having multiple battery positions arranged in sequence along the vertical direction and spaced apart at a preset interval, the battery transfer equipment is located between the two columns of battery racks, the battery rack has a guide mechanism along the vertical direction, the guide mechanism includes four guide columns arranged in one-to-one correspondence with the four ends of the battery transfer equipment, the four guide columns reuse the four columns of the two columns of battery racks close to the battery transfer equipment.

[0033] In this solution, the guide mechanism reuses the four columns of the battery racks on both sides, and the battery transfer system can be directly operated between two opposite battery racks without installing additional guide columns, which can improve strength and reduce costs. The structure is simple and compact, and the installation process saves manpower and material resources, which improves the operating efficiency of the entire system. In addition, the guidance is carried out from the four ends of the battery pick-up and placement mechanism, so that the movement stability of the battery pick-up and placement mechanism is maximized, and at the same time, the structure of the guide mechanism is simplified. The guidance is completely achieved by reusing the columns of the battery rack, and the optimal design of the transfer equipment and the battery rack structure is obtained, which reduces the complexity of the structure, makes the overall structure more compact, has higher strength, and saves space resources; and it is convenient for the battery pick-up and placement mechanism to pick up and place batteries from the battery racks on both sides, which improves the efficiency of battery pick-up and placement.

[0034] Preferably, the reused column has a transmission surface that cooperates with the transmission mechanism, and / or the reused column has a guide surface that cooperates with the battery placement mechanism.

[0035] In this solution, the column has a transmission surface that matches the transmission mechanism. In the specific implementation, the transmission belt in the transmission mechanism can be fixed on the transmission surface, so as to cooperate with the driving wheel and the driven wheel of the transmission mechanism for transmission. The column can also have a guide surface that matches the battery pick-up and placement mechanism, so as to guide the lifting and lowering movement of the battery pick-up and placement mechanism. In this way, the installation of the transmission mechanism and the guidance of the battery pick-up and placement mechanism can be realized, the overall structure is simplified, the connection between the two is more compact, and the guiding strength can be improved, the cost can be reduced, the installation process saves manpower and material resources, and the operation efficiency of the entire system is improved.

[0036] The positive and progressive effect of the present invention is that the transmission mechanism drives the battery pick-up and placement mechanism to move up and down along the guide mechanism, and the guide mechanism of the battery rack is arranged along the vertical direction, so that the battery pick-up and placement mechanism can move to the corresponding battery compartment to take and place the battery. The two ends of the transmission belt are fixedly connected to the guide mechanism, and the driving wheel arranged on the battery pick-up and placement mechanism moves relative to the transmission belt, thereby driving the battery pick-up and placement mechanism to move up and down; and the transition wheel can make the transmission belt sleeved on the driving wheel for transmission; in addition, the lifting height of the battery pick-up and placement mechanism can be adjusted by changing the length of the transmission belt. The transmission mechanism has a simple structure, strong flexibility, a wide range of applications, and is also easy to expand the design. In addition, there is a preset wrap angle value between the transmission belt and the driving wheel, and the contact area between the transmission belt and the driving wheel can be adjusted by controlling the wrap angle value, so that the transmission belt and the driving wheel fit as closely as possible, the transmission is more stable, and the driving wheel is more evenly stressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of a battery transport device with a transmission mechanism provided in an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle transmission mechanism;

[0039] Figure 3 A schematic structural diagram of another battery transport device with a transmission mechanism provided by an embodiment of the present invention;

[0040] Figure 4 A schematic diagram of the structure of a limit plate provided in an embodiment of the present invention;

[0041] Figure 5 for Figure 1 Schematic diagram of the structure of the battery transport equipment in FIG. 1 , wherein the length of the transmission belt is Figure 1 The drive belt lengths are different;

[0042] Figure 6 for Figure 3 Schematic diagram of the structure of the battery transfer equipment and battery rack.

[0043] Description of reference numerals:

[0044] Battery transport system1

[0045] Battery transport equipment 10

[0046] Battery pick-and-place mechanism 100

[0047] Transmission mechanism 200

[0048] Driving wheel 210

[0049] Transition wheel 220

[0050] The first driven wheel 221

[0051] The second driven wheel 222

[0052] Transmission belt 230

[0053] Limit plate 250

[0054] First installation groove 251

[0055] Second mounting groove 252

[0056] Intermediate transmission unit 600

[0057] Driving sprocket 610

[0058] Driven sprocket 620

[0059] Chain 630

[0060] Tension sprocket 640

[0061] Guide column 700

[0062] Drive motor 800

[0063] Battery rack 2

[0064] Column 21

[0065] Battery compartment 22 DETAILED DESCRIPTION

[0066] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0067] The embodiment of the present invention provides a battery transport device 10, which can be used to transport batteries of electric vehicles. Specifically, the battery transport device 10 can be used to transport batteries between multiple battery positions 22 arranged in the vertical direction of a battery rack 2. Figure 5 As shown, the battery positions 22 are sequentially arranged on the battery rack 2 from bottom to top, and each battery position 22 can be used to accommodate and charge batteries. The battery transport device 10 can move to one side of the access opening of the battery position 22 to put the battery into the battery position 22, or take the battery out of the battery position 22, so as to realize the transfer of batteries between multiple battery positions 22. The battery transport device 10 may include a battery access mechanism 100 and a transmission mechanism 200, wherein the battery access mechanism 100 is used to access the battery from the battery position 22, and the transmission mechanism 200 is used to drive the battery access mechanism 100 to realize vertical lifting and lowering movement, so as to move to the corresponding battery position 22.

[0068] The embodiment of the present invention also provides a transmission mechanism 200, which can be applied to the above-mentioned battery transport device 10 to drive the battery pick-up and placement mechanism 100 to move up and down. In addition, the battery rack 2 can have a guide mechanism arranged in the vertical direction, and the transmission mechanism 200 can drive the battery pick-up and placement mechanism 100 to achieve vertical lifting and moving along the guide mechanism.

[0069] like Figure 1-3 As shown, the transmission mechanism 200 may include a driving wheel 210, a transition wheel 220, and a transmission belt 230 fixed on the guide mechanism at both ends along the vertical direction. The driving wheel 210 and the transition wheel 220 are arranged on the battery pick-up and placement mechanism 100, and the transmission belt 230 passes between the driving wheel 210 and the transition wheel 220 so that there is a preset wrap angle value between the transmission belt 230 and the driving wheel 210.

[0070] Through the above-mentioned transmission mechanism 200, the battery pick-up and placement mechanism 100 can be driven to move up and down along the guide mechanism. The guide mechanism of the battery rack 2 is arranged along the vertical direction, so that the battery pick-up and placement mechanism 100 can move to the corresponding battery compartment 22 to pick up and place the battery. The two ends of the transmission belt 230 are fixedly connected to the guide mechanism, and the driving wheel 210 and the transmission belt 230 arranged on the battery pick-up and placement mechanism 100 move relative to each other, thereby driving the battery pick-up and placement mechanism 100 to move up and down; and the transition wheel 220 can make the transmission belt 230 sleeved on the driving wheel 210 for transmission; in addition, the lifting height of the battery pick-up and placement mechanism 100 can be adjusted by changing the length of the transmission belt 230. The transmission mechanism 200 has a simple structure, strong flexibility, a wide range of applications, and is also easy to expand the design. In addition, there is a preset wrap angle value between the transmission belt 230 and the driving wheel 210, and the contact area between the transmission belt 230 and the driving wheel 210 can be adjusted by controlling the wrap angle value, so that the transmission belt 230 and the driving wheel 210 fit as closely as possible, the transmission is more stable, and the driving wheel 210 is subjected to more uniform force.

[0071] As a preferred implementation, the wrap angle between the transmission belt 230 and the driving wheel 210 ranges from 120° to 230°.

[0072] In a specific implementation, the transmission belt 230 and the driving wheel 210120 can be in a relatively large and appropriate wrap angle value range, and the transmission will not shake due to too small a contact area, nor will the transmission be unable to be transmitted due to too large an wrap angle. Within this range, the larger the wrap angle value, the smoother the transmission, and the more evenly the force on the driving wheel 210 is applied.

[0073] Preferably, the driving wheel 210 and the transition wheel 220 are configured to allow the transmission belt 230 to pass through, so that the transmission belt 230 fits the driving wheel 210 .

[0074] The transmission belt 230 passing through between the driving wheel 210 and the transition wheel 220 means that there is a sufficient distance between the driving wheel 210 and the transition wheel 220 for the transmission belt 230 to be arranged therebetween. Figure 3 As shown, there is a distance between the driving wheel 210 and the transition wheel 220, and the transmission belt 230 can be connected to the transition wheel 220, and then extended for a distance and then connected to the driving wheel 210; through the action of the transition wheel 220, the transmission belt 230 can be attached to the driving wheel 210. Figure 1 and Figure 2 As shown, the driving wheel 210 and the transition wheel 220 are close to each other, and the transmission belt 230 can be passed through between the driving wheel 210 and the transition wheel 220 by configuring corresponding gap values.

[0075] As a preferred embodiment, the gap value between the driving wheel 210 and the transition wheel 220 is between the first thickness value from the bottom of the meshing teeth of the transmission belt 230 to the other side and the second thickness value from the top of the meshing teeth to the other side. The other side refers to the side corresponding to the non-transmission surface of the transmission belt 230. As a result, the gap between the driving wheel 210 and the transition wheel 220 is greater than the thickness of the belt body of the transmission belt 230, and less than the overall thickness of the transmission belt 230, ensuring that the transmission belt 230 can fit between the driving wheel 210 and the transition wheel 220 during the transmission process to avoid tooth jumping. Specifically, when the driving wheel 210 transitions to the transition wheel 220, or when the transition wheel 220 transitions to the driving wheel 210, the transmission belt 230 can be prevented from jumping teeth, which is more stable and improves transmission accuracy.

[0076] As a preferred embodiment, the tooth shape and width of the transmission belt 230 are set to have a first functional relationship with the total weight of the battery pick-and-place mechanism 100 and the battery, so that the transmission belt 230 drives the battery pick-and-place mechanism 100 and the battery to move. Therefore, by involving the tooth shape and width of the transmission belt 230 according to the first functional relationship to adapt to the weight requirements of the corresponding battery pick-and-place mechanism 100 and the battery, the transmission can be reliable, the transmission strength is good, the transmission is smoother, and the service life is longer. In specific implementation, the first functional relationship can be obtained through the corresponding manual.

[0077] As a preferred implementation method, Figure 1-3 As shown, the transition wheel 220 includes a first driven wheel 221 and a second driven wheel 222. The first driven wheel 221 and the second driven wheel 222 are arranged on both sides of the driving wheel 210 at a preset interval in the vertical direction, and the transmission belt 230 passes between the first driven wheel 221 and the driving wheel 210, and between the driving wheel 210 and the second driven wheel 222 in sequence.

[0078] In a specific implementation, the first driven wheel 221 and the second driven wheel 222 may be located between the driving wheel 210 and the guide mechanism, and the distance between the axis of the driving wheel 210 and the guide mechanism is smaller than the diameter of the first driven wheel 221 and the second driven wheel 222 .

[0079] As a preferred embodiment, the first driven wheel 221 is arranged to be located at a first position above along the lifting direction, the second driven wheel 222 is arranged to be located at a second position below, and at least one of the first driven wheel 221 and the second driven wheel 222 is arranged to satisfy the gap value with the driving wheel 210.

[0080] In specific implementation, the lifting direction of the battery transport equipment is usually vertical up and down, such as Figure 1-3 As shown, the first driven wheel 221 and the second driven wheel 222 can be arranged on the upper and lower sides of the driving wheel 210. The transmission belt 230 passes through the gap between the first driven wheel 221 and the driving wheel 210, and is sleeved on the driving wheel 210, and then passes through the gap between the second driven wheel 222 and the driving wheel 210, so that the transmission belt 230 forms a shape similar to Ω, which can increase the wrap angle of the transmission belt 230 on the driving wheel 210 and improve the stability of the transmission. Correspondingly, by adjusting the distance between the first driven wheel 221 and the second driven wheel 222, the size of the wrap angle can also be adjusted. Specifically, the wrap angle value between the transmission belt 230 and the driving wheel 210 ranges from 120° to 230°.

[0081] In addition, the battery transport device 10 needs to be lifted and lowered during the process of taking and placing batteries. By respectively arranging the first driven wheel 221 and the second driven wheel 222 on both sides, the transmission belt 230 and the driving wheel 210 can accurately transmit the battery transport device 10 during the two movements of lifting and lowering, thereby improving the stability and accuracy of the movement. Moreover, at least one of the first driven wheel 221 and the second driven wheel 222 can meet the gap value, so that the lifting and lowering process can be relatively stable.

[0082] As a preferred implementation method, Figure 1-3 As shown, the distance between the first driven wheel 221 and the second driven wheel 222 and the guide mechanism is set so that the transmission belt 230 can be pressed on the guide mechanism, and specifically can be pressed on the guide column 700. Thus, the transmission belt 230 can be more stable during the movement.

[0083] As a preferred embodiment, at least one of the first driven wheel 221 and the second driven wheel 222 is configured to be movable in the vertical direction to adjust the fit between the transmission belt 230 and the driving wheel 210. Thus, at least one of the first driven wheel 221 and the second driven wheel 222 is vertically adjustable, which can prevent tooth jumping, and the larger the wrap angle value of the transmission belt 230 and the driving wheel 210, the more uniform the force, thereby preventing the driving wheel 210 from breaking teeth.

[0084] As a preferred implementation method, Figure 1 and Figure 2 As shown, the transmission mechanism 200 also includes two limit plates 250 disposed on both axial sides of the driving wheel 210 and the transition wheel 220 and connected to the driving wheel 210 and the transition wheel 220. The limit plates 250 are used to limit the transmission belt 230 from axially disengaging.

[0085] Both sides of the driving wheel 210 and the transition wheel 220 are connected to the limiting plate 250, and the driving wheel 210 and the transition wheel 220 are connected to the limiting plate 250. Specifically, Figure 4 As shown, the surface of the limiting plate 250 opposite to the driving wheel 210 and the transition wheel 220 has a first mounting groove 251 and a second mounting groove 252, the first mounting groove 251 is used to install the driving wheel 210, and the first mounting groove 251 is symmetrically provided with a second mounting groove 252 above and below, and the second mounting groove 252 is used to install the transition wheel 220, that is, the first driven wheel 221 and the second driven wheel 222. Therefore, the limiting plates 250 on both sides can not only serve as mounting components for the driving wheel 210 and the transition wheel 220, but also limit the disengagement of the transmission belt 230, and can also adjust the distance between the driving wheel 210 and the transition wheel 220 and the guide mechanism, as a position adjustment component of the transmission mechanism 200.

[0086] As a preferred implementation method, Figure 1 and Figure 2 As shown, the battery transport device 10 further includes an intermediate transmission part 600, the input end of the intermediate transmission part 600 is connected to the output end of the driver of the battery transport device 10, and the output end of the intermediate transmission part 600 is connected to the driving wheel 210 to drive the driving wheel 210 to rotate, thereby driving the battery pick-and-place mechanism 100 to move up and down. Thus, the driving force of the driving motor 800 can be transmitted to the driving wheel 210 through the intermediate transmission part 600, and the position of the driving wheel 210 can also be adjusted to make the driving wheel 210 closer to the transition wheel 220, so that the structure is more compact and the stability of the transmission is improved.

[0087] In specific implementation, Figure 1 and Figure 2As shown, the transmission mechanism 200 is arranged between the first fixing plate 310 and the second fixing plate 320, and the intermediate transmission part 600 can be arranged on the fixing plate closer to the battery pick-and-place mechanism 100, so as to facilitate connection with the driving motor 800 located above the battery pick-and-place mechanism 100.

[0088] As a preferred implementation method, Figure 1 As shown, the intermediate transmission part 600 is a sprocket chain 630 structure, including a driving sprocket 610, a driven sprocket 620 and a chain 630. The driving sprocket 610 is connected to the output end of the driver, and the driven sprocket 620 is coaxially connected to the driving wheel 210 to drive the driving wheel 210 to rotate. The chain 630 is a closed-loop structure with its two ends respectively mounted on the driving sprocket 610 and the driven sprocket 620.

[0089] Furthermore, if Figure 1 As shown, the sprocket chain 630 structure further includes a tensioning sprocket 640 , which abuts against the chain 630 from the outside to adjust the tension of the tensioning sprocket 640 .

[0090] like Figure 1 As shown, in a specific implementation, the sprocket chain 630 can be a multi-row chain structure.

[0091] As another preferred embodiment, the intermediate transmission part 600 is a gear set, including a driving gear and a driven gear, the driving gear is connected to the output end of the driver, the driven gear is coaxially connected to the driving wheel 210 to drive the driving wheel 210 to rotate, and the driving gear and the driven gear are meshed with each other.

[0092] As another preferred embodiment, the intermediate transmission part 600 is a pulley structure, including a first driving wheel 210, a driven wheel and a first belt. The first driving wheel 210 is connected to the output end of the driver, and the driven wheel is coaxially connected to the driving wheel 210 to drive the driving wheel 210 to rotate. The first belt is a closed-loop structure with both ends mounted on the first driving wheel 210 and the driven wheel.

[0093] In specific implementation, as mentioned above, the structure of the intermediate transmission part 600 can adopt various forms, and can be specifically configured accordingly according to the arrangement between the output shaft of the driving motor 800 and the driving wheel 210 .

[0094] like Figure 1 and Figure 5 As shown, a schematic diagram of the structure of a battery transport device 1 is shown; according to Figure 1 and Figure 5The transmission belt 230 shown in the transmission mechanism 200 can change the lifting height of the transmission mechanism according to the needs. In the specific implementation, it can be changed by changing the fixing position of the fixing part 240 and selecting the corresponding length of the transmission belt 230. The lifting height can also be further increased by increasing the height of the guide column 700. Figure 3 and Figure 6 As shown, another schematic diagram of the structure of the transmission mechanism and the schematic diagram of the structure of the transmission mechanism arranged between the battery racks are shown, which can also be changed by changing the fixed position of the fixing part 240 and selecting a corresponding length of the transmission belt 230. The lifting height can also be further increased by increasing the height of the guide column 700.

[0095] The present invention further provides a battery transport system 1, wherein the battery transport system 1 comprises a battery transport device, wherein the battery transport device comprises a transmission mechanism 200 of the battery transport device as described above.

[0096] As a preferred implementation method, Figure 5 and Figure 6 As shown, a plurality of battery positions 22 are arranged in two rows of battery racks 2 at a preset interval, the battery transport device 10 is located between the two rows of battery racks 2, and the battery pick-up and placement mechanism 100 is arranged to be telescopically movable toward the battery positions 22 on both sides to pick up and place the batteries. Furthermore, the four guide posts 700 reuse the four upright posts 21 of the two rows of battery racks 2 close to the battery transport device 10.

[0097] The guide mechanism reuses the columns 21 of the battery racks 2 on both sides, and the battery pick-and-place mechanism 100 can pick and place batteries on the battery racks 2 on both sides, which can not only improve the pick-and-place efficiency, but also save resources of the battery pick-and-place mechanism 100. In addition, the space between the battery rack 2 and the battery pick-and-place mechanism 100 is more compact, further reducing the occupied area.

[0098] As a preferred implementation, the reused column 21 has a transmission surface that matches with the transmission mechanism 200 , and / or the reused column 21 has a guide surface that matches with the battery placement mechanism 100 .

[0099] In specific implementation, Figure 1 and Figure 5 As shown, or as Figure 3 and Figure 6As shown, the column 21 has multiple side walls, one or more of which can be used as a transmission surface or a guide surface. The transmission surface refers to the side wall surface used to fix the transmission mechanism 200, which is the transmission belt 230 in the embodiment of the present invention, and the guide surface refers to the side wall surface used for the lifting and lowering guidance of the battery pick-and-place mechanism 100. In this way, the installation of the transmission mechanism 200 and the guidance of the battery pick-and-place mechanism 100 can be achieved, the overall structure is simplified, the connection between the two is more compact, and the guiding strength can be improved, the cost can be reduced, the installation process saves manpower and material resources, and the operating efficiency of the entire system is improved.

[0100] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A transmission mechanism of a battery transport device, the battery transport device is used to transport batteries between multiple battery positions of a battery rack, the battery rack has a guide mechanism arranged in a vertical direction, the multiple battery positions are arranged on the battery rack in sequence along the vertical direction, the battery transport device comprises a battery picking and placing mechanism for picking and placing batteries from the battery positions and the transmission mechanism, characterized in that: The transmission mechanism is connected between the battery pick-up and placement mechanism and the guide mechanism, and is used to drive the battery pick-up and placement mechanism to achieve vertical lifting and lowering movement along the guide mechanism. The transmission mechanism includes a driving wheel, a transition wheel, and a transmission belt fixed on the guide mechanism at both ends in the vertical direction. The driving wheel and the transition wheel are arranged on the battery pick-and-place mechanism. The transmission belt passes between the driving wheel and the transition wheel so that there is a preset wrap angle value between the transmission belt and the driving wheel. The driving wheel and the transition wheel are configured to allow the transmission belt to pass through, so that the transmission belt fits the driving wheel; The gap value between the bottom of the meshing teeth of the driving wheel and the transition wheel is between the first thickness value from the bottom of the meshing teeth of the transmission belt to the other side and the second thickness value from the top of the meshing teeth to the other side.

2. The transmission mechanism of the battery transport device according to claim 1, characterized in that: The wrap angle between the transmission belt and the driving wheel ranges from 120° to 230°.

3. The transmission mechanism of the battery transport device according to claim 1, characterized in that: The tooth shape and width of the transmission belt are set to have a first functional relationship with the total weight of the battery pick-and-place mechanism and the battery, so that the transmission belt drives the battery pick-and-place mechanism and the battery to move.

4. The transmission mechanism of the battery transport device according to claim 1, characterized in that: The transition wheel includes a first driven wheel and a second driven wheel, the first driven wheel and the second driven wheel are arranged on both sides of the driving wheel at a preset interval in the vertical direction, and the transmission belt passes between the first driven wheel and the driving wheel, and between the driving wheel and the second driven wheel in sequence.

5. The transmission mechanism of the battery transport device according to claim 4, characterized in that: The first driven wheel is arranged at a first position above along the lifting direction, the second driven wheel is arranged at a second position below, and at least one of the first driven wheel and the second driven wheel is arranged to satisfy the gap value with the driving wheel.

6. The transmission mechanism of the battery transport device according to claim 4, characterized in that: The distances between the first driven wheel and the second driven wheel and the guide mechanism are set so that the transmission belt can be pressed onto the guide mechanism.

7. The transmission mechanism of the battery transport device according to claim 4, characterized in that: At least one of the first driven wheel and the second driven wheel is arranged to be movable in a vertical direction to adjust the fit between the transmission belt and the driving wheel.

8. The transmission mechanism of the battery transport device according to any one of claims 1 to 7, characterized in that: The transmission mechanism further comprises two limit plates which are arranged on both sides of the driving wheel and the transition wheel in the axial direction and connected to the driving wheel and the transition wheel, and the limit plates are used to limit the transmission belt from disengaging in the axial direction.

9. A battery transport system, characterized in that: The battery transport system comprises a battery transport device, and the battery transport device comprises a transmission mechanism of the battery transport device according to any one of claims 1-8.

10. The battery transport system according to claim 9, characterized in that: The battery transfer system also includes two columns of battery racks having multiple battery positions arranged in sequence along the vertical direction and spaced apart at a preset interval. The battery transfer equipment is located between the two columns of battery racks. The battery rack has a guide mechanism along the vertical direction. The guide mechanism includes four guide columns arranged in one-to-one correspondence with the four ends of the battery transfer equipment. The four guide columns reuse the four columns of the two columns of battery racks close to the battery transfer equipment.

11. The battery transport system according to claim 10, characterized in that: The reused column has a transmission surface that matches the transmission mechanism, and / or the reused column has a guide surface that matches the battery placement mechanism.

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