Fall protection mechanism, battery transfer device comprising same and battery swapping station

Abstract

The application discloses a kind of for battery transfer equipment anti-falling mechanism, battery transfer equipment is equipped with battery taking and placing unit and drive unit with battery taking and placing unit lifting, drive unit includes multiple transmission assemblies, drive assembly is arranged at the both sides of battery taking and placing unit, drive assembly includes drive motor, simultaneously connect the transmission assembly of both ends synchronous shaft, respectively the driving wheel and driven wheel of output shaft and synchronous shaft on drive motor and in the transmission of driving wheel and driven wheel between synchronous belt, anti-falling mechanism has first state and second state, in first state, anti-falling mechanism is engaged with synchronous shaft to fix the position of battery taking and placing unit;In second state, anti-falling mechanism is away from synchronous shaft.In special circumstances, anti-falling mechanism is limited by the mode of engagement with synchronous shaft to rotate synchronous shaft, realize the purpose of anti-falling, ensure that taking and placing unit is in safe state under normal working environment.

Description

[0001] This application is a divisional application of the Chinese invention patent with the application date of December 2, 2021, the application number of CN202111461276.6, and the name of "Anti-falling mechanism, battery transfer equipment containing the same, and battery swap station". TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicle battery swap, in particular to an anti-falling mechanism, a battery transfer equipment containing the same, and a battery swap station. BACKGROUND

[0003] When the existing electric vehicles are swapped, the discharged batteries are usually taken out from the electric vehicles and transported to the battery racks, and the fully charged batteries are taken out from the battery racks and transported to the electric vehicles. Among them, the batteries are usually stored in the form of stacking on the battery racks, so when the battery transfer equipment takes out or places the batteries, not only does the battery swap equipment need to move in the horizontal direction, but also the battery transfer equipment needs to move in the vertical direction.

[0004] In the vertical movement of the battery swap equipment, the force is usually transmitted by belt transmission or chain transmission. If the transmission belt breaks, it is easy to cause the battery swap execution mechanism to fall out of control or even free fall, which causes damage to the battery swap equipment. And it is easy to cause the battery pack on the battery swap equipment to be damaged together, in serious cases, even cause the damaged battery pack to explode and explode, and even cause irreparable loss. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defect that the existing battery swap equipment falls due to the breakage of the transmission belt, and to provide an anti-falling mechanism, a battery transfer equipment containing the same, and a battery swap station.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] The application discloses a falling-prevention mechanism for a battery transfer device, which is arranged in the battery transfer device, and the battery transfer device is provided with a battery taking and placing unit for performing a battery taking and placing operation and a transmission unit for driving the battery taking and placing unit to lift, the transmission unit comprises a plurality of transmission assemblies arranged at end corner positions of the battery taking and placing unit respectively and drive assemblies arranged at two sides of the battery taking and placing unit to drive the transmission assemblies at two ends of the same side of the battery taking and placing unit to move synchronously, wherein the drive assembly comprises a drive motor, synchronous shafts connected with the transmission assemblies at two ends respectively, a driving wheel and a driven wheel sleeved on an output shaft of the drive motor and the synchronous shafts respectively and a synchronous belt transmitted between the driving wheel and the driven wheel, and the falling-prevention mechanism has a first state and a second state, in the first state, the falling-prevention mechanism is engaged with the synchronous shafts to limit the battery taking and placing unit, and in the second state, the falling-prevention mechanism is away from the synchronous shafts and the synchronous shafts rotate normally.

[0008] In the application, the falling-prevention mechanism is adopted and has two working states, so that the falling-prevention mechanism is adapted to different matching states of the transmission unit under different conditions. When the transmission unit normally operates, i.e. the falling-prevention mechanism is in the second state, the falling-prevention mechanism is kept away from the synchronous shafts of the transmission unit, so as not to affect the lifting of the battery taking and placing unit by the transmission unit. When a special condition occurs, i.e. the synchronous belt is broken, the falling-prevention mechanism is engaged with the synchronous shafts to limit the rotation of the synchronous shafts, so that the falling-prevention mechanism is switched from the second state to the first state, the battery taking and placing unit is limited, the continuous rotation of the synchronous shafts is prevented, the battery taking and placing unit is stopped at the current position without further descending, the falling-prevention purpose is achieved, and the safety of the lifting of the battery taking and placing unit is improved.

[0009] Preferably, the falling-prevention mechanism comprises a limiting rod, one end of the limiting rod is pivoted to a preset position of the battery taking and placing unit and located below the synchronous shafts, a meshing tooth for engaging with the synchronous shafts is arranged on a side surface of the limiting rod facing the synchronous shafts, and the limiting rod is switched between the first state and the second state by swinging at the other end.

[0010] In the application, the falling-prevention mechanism is switched between the first state and the second state by swinging of the limiting rod, the structure is simple, the operation of other components is not affected by too many and complex structures, and the reliability is high. Moreover, the meshing tooth for engaging with the synchronous shafts is arranged on the side surface of the limiting rod facing the synchronous shafts, the meshing tooth is engaged with the synchronous shafts when a special condition occurs, the rotation of the synchronous shafts is limited, and the matching effect between the synchronous shafts and the limiting rod is enhanced.

[0011] Preferably, the anti-falling mechanism further comprises a contact wheel movably connected to the limiting rod at the other end away from the pivot joint and abutting against the outer surface of the synchronous belt, so that the limiting rod is limited by the synchronous belt and kept in the second state.

[0012] In this scheme, the anti-falling mechanism limits the limiting rod by contacting the outer surface of the synchronous belt with the contact wheel, keeps the limiting rod away from the synchronous shaft in the normal working state of the battery taking and placing unit, avoids affecting the normal rotation of the synchronous shaft, i.e. the limiting rod remains in the second state; when the synchronous belt is broken or abnormal, the synchronous belt loses the ability to limit the contact wheel by abutting, so that the position of the contact wheel is offset and the limiting rod is switched to the first state, the limiting rod is clamped with the synchronous shaft, the rotation of the synchronous shaft is limited, and the falling of the battery taking and placing unit is stopped. This structure triggers the anti-falling of the battery taking and placing unit based on the state of the synchronous belt, and is simple and reliable.

[0013] Preferably, the anti-falling mechanism further comprises a spring, one end of the spring is connected to the limiting rod and the other end is fixedly connected to the battery taking and placing unit, and the spring applies a force to the limiting rod to switch it to the first state.

[0014] In this scheme, the spring applies a force to the limiting rod, which can quickly respond to switch the anti-falling mechanism from the second state to the first state when the synchronous belt is broken or abnormal, clamp the limiting rod with the synchronous shaft in time, effectively limit the continuous rotation of the synchronous shaft, limit the battery taking and placing unit, and stop the battery taking and placing unit at the current position. The anti-falling efficiency of the limiting rod is enhanced, and the anti-falling response speed of the anti-falling mechanism is improved.

[0015] Preferably, the synchronous belt is a chain, and the contact wheel is a sprocket, the surface of the sprocket has meshing teeth matched with the chain.

[0016] In this scheme, the form and number of the synchronous belt can be set as needed, and in the case of a chain, the contact wheel is set as a sprocket that can cooperate with the chain, so that the contact wheel remains meshed with the chain without other auxiliary components in the normal operation state of the synchronous shaft driven by the chain, ensuring that the anti-falling mechanism remains in the second state, and the structure is simple and reliable.

[0017] Preferably, the contact wheel meshes with the outer surface of the synchronous belt in the region between the driving wheel and the driven wheel.

[0018] In the present scheme, through the structural arrangement, it is ensured that the contact wheel does not interfere with the normal rotation of the driving wheel or the driven wheel, and the normal operation of the battery taking and placing unit is ensured. In addition, when the synchronous belt is accidentally broken, the contact wheel can be prevented from being limited by the driving wheel or the driven wheel, so that the limiting rod cannot be quickly switched to the first state for fall prevention.

[0019] Preferably, the contact wheel is arranged on the side of the limiting rod facing the synchronous belt.

[0020] In the present scheme, through the above structural arrangement, the contact wheel is arranged on the side of the limiting rod facing the synchronous belt, and the limiting rod is arranged out of position with the synchronous belt, so that the contact wheel and the driving wheel and the driven wheel operate in the same dimension, and the limiting rod does not affect the normal rotation of the driving wheel and the driven wheel.

[0021] Preferably, the fall prevention mechanism further comprises a gear sleeved on the synchronous shaft, and the engaging teeth on the limiting rod are engaged with the gear to limit the rotation of the synchronous shaft.

[0022] In the present scheme, by arranging a gear on the synchronous shaft to engage with the limiting rod, the reliability of engagement and the tightness of connection can be improved, and it is ensured that the synchronous shaft does not continue to rotate when the limiting rod is switched to the first state. In addition, engaging the gear arranged on the synchronous shaft can also reduce the surface damage of the synchronous shaft caused by the direct engagement of the fall prevention mechanism with the synchronous shaft.

[0023] A battery transfer device comprises:

[0024] A battery taking and placing unit for performing battery taking and placing operations;

[0025] A transmission unit for driving the battery taking and placing unit to move up and down, the transmission unit comprising a plurality of transmission assemblies arranged at four corner positions of the battery taking and placing unit respectively, and a driving assembly arranged at both sides of the battery taking and placing unit to drive the transmission assemblies at both ends of the same side of the battery taking and placing unit to move synchronously, the driving assembly comprising a driving motor, a synchronous shaft connected to the transmission assemblies at both ends respectively, a driving wheel and a driven wheel sleeved on the output shaft of the driving motor and the synchronous shaft respectively, and a synchronous belt transmitted between the driving wheel and the driven wheel; a fall prevention mechanism arranged at a predetermined position of the battery taking and placing unit, limiting the rotation of the synchronous shaft to limit the battery taking and placing unit, wherein the fall prevention mechanism is the fall prevention mechanism of any of the above schemes.

[0026] In the present scheme, the battery transfer device, when the transmission unit is normally operated, the anti-falling mechanism keeps away from the synchronous shaft of the transmission unit, and does not affect the transmission unit driving the battery taking and placing unit to lift; when special circumstances occur, such as synchronous belt breakage or abnormality, the anti-falling mechanism can quickly engage with the synchronous shaft to limit its continuous rotation, so that the taking and placing unit stops at the height position when the special circumstances occur, and the position of the battery taking and placing unit is limited, so that the large-scale downward movement does not occur again, the anti-falling purpose is achieved, and the safety of the battery taking and placing unit lifting is improved.

[0027] A battery swap station comprising the battery transfer device as described above.

[0028] In the present scheme, the battery transfer device, when the transmission unit is normally operated, the anti-falling mechanism keeps away from the synchronous shaft of the transmission unit, and does not affect the transmission unit driving the battery taking and placing unit to lift; when special circumstances occur, such as synchronous belt breakage or abnormality, the anti-falling mechanism can quickly engage with the synchronous shaft to limit its continuous rotation, so that the taking and placing unit stops at the height position when the special circumstances occur, and the position of the battery taking and placing unit is limited, so that the large-scale downward movement does not occur again, the anti-falling purpose is achieved, and the safety of the battery taking and placing unit lifting is improved.

[0029] The positive progress effect of the present application is that: the anti-falling mechanism, the battery transfer device and the battery swap station comprising the same, by adopting the anti-falling mechanism and setting the anti-falling mechanism to have two working states, so that the anti-falling mechanism adapts to the different cooperation states of the transmission unit in different situations. When the transmission unit is normally operated, i.e. the anti-falling mechanism is in the second state, the anti-falling mechanism keeps away from the synchronous shaft of the transmission unit, avoiding the anti-falling mechanism affecting the lifting of the battery taking and placing unit driven by the transmission unit; when special circumstances occur, i.e. the synchronous belt breaks, the anti-falling mechanism switches from the second state to the first state, so that the anti-falling mechanism engages with the synchronous shaft to limit the continuous rotation of the synchronous shaft, limiting the position of the battery taking and placing unit in the height direction, so that the battery taking and placing unit does not descend and stops at the current position, achieving the anti-falling purpose and improving the safety of the battery taking and placing unit lifting. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic view of the battery swap station of an embodiment of the present application.

[0031] Figure 2 It is a structural schematic view of the battery transfer device of an embodiment of the present application.

[0032] Figure 3 It is a whole structural schematic view of the anti-falling mechanism of an embodiment of the present application.

[0033] Figure 4Structure schematic view of the anti-falling mechanism in the first state according to an embodiment of the present application.

[0034] Figure 5 Structure schematic view of the anti-falling mechanism in the second state according to an embodiment of the present application.

[0035] Figure 6 Structure schematic view of the anti-falling mechanism according to an embodiment of the present application.

[0036] Figure 7 Structure schematic view of the limiting rod of the anti-falling mechanism according to an embodiment of the present application.

[0037] Explanation of reference signs:

[0038] Battery swap station 100

[0039] First battery swap module 101, driving lane 102, second battery swap module 103

[0040] Battery transfer equipment 1, battery taking and placing unit 11, fixing seat 111, transmission unit 12, driving assembly 121, synchronous shaft 1212, driving wheel 1212a, driven wheel 1212b, gear 1212c, synchronous belt 1213, anti-falling mechanism 13, elastic member 131, contact wheel 132, limiting rod 133, supporting unit 15

[0041] Battery rack 2 DETAILED DESCRIPTION

[0042] The present application will be further described in the following by way of examples, but the present application is not limited in the scope of the described examples.

[0043] The present application provides a battery swap station 100, the structure is as shown in Figure 1 In the embodiment, the battery swap station 100 comprises, from left to right, a first battery swap module 101, a driving lane 102 and a second battery swap module 103. When the vehicle to be swapped battery drives into and stops at a specific position in the driving lane 102, the battery swap trolley takes the battery from the bottom of the vehicle and moves to the first battery swap module 101 or the second battery swap module 103.

[0044] In the case of transporting the battery to the second battery swap module 103, after the battery swap trolley (not shown in the figure) moves the battery to the second battery swap module 103, the battery transfer device 1 in the second battery swap module 103 takes the battery from the battery swap trolley and places it in a certain battery compartment of the battery rack 2, so that the battery rack 2 performs charging operation on the battery. Then, the battery transfer device 1 takes another fully charged battery from another battery compartment of the battery rack 2, transports the battery to the battery swap trolley, and the battery swap trolley moves the battery horizontally to the bottom of the vehicle and installs it on the vehicle to achieve the purpose of battery swap.

[0045] In the embodiment, the structure of the battery transfer device 1 is as shown in Figures 2-4 which specifically includes a support unit 15 for forming a frame structure, a battery taking and placing unit 11 for performing battery taking and placing operation, and a transmission unit 12 for driving the battery taking and placing unit 11 to move up and down relative to the support unit 15.

[0046] In the embodiment, the transmission unit 12 includes four groups of transmission assemblies respectively arranged at the four corner positions of the battery taking and placing unit 11, and driving assemblies 121 respectively arranged at the two sides of the battery taking and placing unit 11 to drive the transmission assemblies at the two ends of the same side of the battery taking and placing unit 11 to move synchronously. That is, the transmission unit 12 includes transmission assemblies and driving assemblies 121, and the driving assemblies 121 drive the transmission assemblies to move the battery taking and placing unit 11 up and down. The driving assemblies 121 and the transmission assemblies can be selected in type and quantity as needed, wherein one group of driving assemblies 121 can drive multiple groups of transmission assemblies, or multiple groups of driving assemblies 121 can collectively drive multiple groups of transmission assemblies, provided that the normal up and down operation of the battery taking and placing unit 11 is ensured to achieve the purpose of battery taking and placing operation. In the embodiment, each transmission assembly is a gear and rack transmission unit that is driven by the cooperation of a gear and a rack, specifically, a rack is arranged on the column of the support unit 15, and the relative movement along the corresponding rack is realized by driving the rotation of the gear connected to the battery taking and placing unit 11 to realize the up and down movement, thereby driving the taking and placing unit 11 to move up and down relative to the support unit 15.

[0047] In the embodiment, the driving assembly 121 includes a driving motor, a synchronous shaft 1212 and a synchronous belt 1213, wherein the synchronous shaft 1212 is connected to and drives two transmission assemblies at the two ends of the same side to realize the synchronous rotation of the two transmission assemblies. As Figure 3As shown, the driving motor is arranged at the upper end position of the synchronous shaft 1212, a driving wheel 1212a is arranged at the output shaft of the driving motor, the output shaft and the driving wheel 1212a are synchronously rotated, a driven wheel 1212b is arranged at the corresponding position of the synchronous shaft 1212, the synchronous shaft 1212 and the driven wheel 1212b are synchronously rotated, and the driving wheel 1212a and the driven wheel 1212b are drivingly connected through the synchronous belt 1213, so that the power output by the driving motor is sequentially transmitted to the driving wheel 1212a, the synchronous belt 1213, the driven wheel 1212b through the output shaft and drives the synchronous shaft 1212 to rotate, thereby finally driving the gears arranged at the two ends of the synchronous shaft 1212 to synchronously rotate. Thus, the lifting movement of the rack of the relative transmission assembly is realized, so as to drive the battery taking and placing unit 11 connected with the rack to move up and down relative to the supporting unit 15, and the purpose of transporting the battery is achieved.

[0048] In the embodiment, the synchronous belt 1213 is a chain, so as to meet the reliable operation requirement of the battery transporting device under a large load.

[0049] The battery transporting device 1 further comprises a falling prevention mechanism 13, as shown. Figure 3 The falling prevention mechanism 13 is arranged at the position of the driven wheel 1212b on the synchronous shaft 1212. The falling prevention mechanism 13 is arranged to protect the battery taking and placing unit 11 when the driving assembly 121 of the battery transporting device 1 cannot operate normally due to a sudden condition, effectively reduces the risk of damaging the battery transporting device 1 caused by the driving assembly 121 in failure, and specifically prevents the battery taking and placing unit 11 from falling and causing damage to the device or an accident. Therefore, the falling prevention mechanism 13 can ensure the safety of the battery transporting device 1 and the battery swap station 100, and minimize the risk caused by accidents.

[0050] In the embodiment, the falling prevention mechanism 13 is arranged at the position of the synchronous shaft 1212 close to the driving motor, specifically at the positions of the driving wheel 1212a and the driven wheel 1212b. The falling prevention mechanism 13 has a first state and a second state. The first state is the state of the falling prevention mechanism 13 when the driving assembly 121 has a sudden condition, specifically when the synchronous belt 1213 is broken or abnormal, the falling prevention mechanism 13 can maintain the entire battery transporting device 1 in a safe stop state (see Figure 5 ). Figure 4

[0051] ​The working principle of the anti-falling mechanism 13 is as follows: when the transmission unit 12 is normally running, the anti-falling mechanism 13 is in the second state, and the anti-falling mechanism 13 and the synchronous shaft 1212 of the transmission unit 12 are kept relatively far away from each other, so as to avoid the anti-falling mechanism 13 affecting the lifting of the battery taking and placing unit 11 driven by the transmission unit 12, specifically to avoid hindering the normal rotation of the synchronous shaft 1212. When a special situation occurs (i.e. the synchronous belt 1213 is broken), the anti-falling mechanism 13 switches from the second state to the first state, so that the anti-falling mechanism 13 limits the continuous rotation of the synchronous shaft 1212 by clamping the synchronous shaft 1212, thereby limiting the battery taking and placing unit, so that the battery taking and placing unit 11 will not rise and fall again and stop at the current position, achieving the purpose of preventing falling, ensuring that the battery taking and placing unit 11 is always in a safe state, and avoiding damage caused by the failure of the transmission unit 12.

[0052] The specific structure of the anti-falling mechanism 13 of the embodiment is as follows: as shown in Figures 6-7 The anti-falling mechanism 13 includes a limiting rod 133, one end of the limiting rod 133 is pivotally connected to the side surface of the battery taking and placing unit 11 and is located below the synchronous shaft 1212. In this embodiment, the connecting structure for pivotally connecting one end of the limiting rod 133 to the frame of the battery taking and placing unit 11 is provided by a fixed seat 111 arranged on the side surface of the battery taking and placing unit 11, and the specific structure of the fixed seat 111 is as shown in Figure 3 The fixed seat 111 is a pair of L-shaped structure, one end of the fixed seat 111 is fixed to the frame of the battery taking and placing unit 11 through two mounting holes 1111, and the other end of the fixed seat 111 provides a rotating shaft 1112, so that the limiting rod 133 can be movably connected relative to the battery taking and placing unit 11.

[0053] The above structure is provided, the limiting rod 133 is movably connected through one end and the rotating shaft 1112 provided by the fixed seat 111, so that the other end of the limiting rod 133 can swing relative to the connecting point of the fixed seat 111, thereby switching between the first state and the second state. In this movement mode, the structure of the limiting rod 133 is simple, which avoids affecting the operation of other components due to too many and too complex structures, and has high reliability, facilitating the switching of positions, being conducive to improving the operation reliability of the anti-falling mechanism, and enhancing the cooperation effect between the synchronous shaft 1212 and the limiting rod 133.

[0054] Specifically, the limiting rod 133 is provided with meshing teeth 1331 on the side surface facing the synchronous shaft 1212, which are used for clamping the synchronous shaft 1212, and the limiting rod 133 is provided with a limiting block 1332 on the side surface away from the synchronous shaft 1212, which is used for limiting the rotation of the limiting rod 133. Figure 5When the direction of the middle arrow switches from the second state to the first state, the meshing teeth 1331 on the limiting rod 133 are engaged with the synchronous shaft 1212, the engagement strength is high, the function of limiting and fixing the synchronous shaft 1212 from continuing to rotate is realized, the cooperation effect between the synchronous shaft 1212 and the limiting rod 133 is enhanced, and the anti-falling function of the anti-falling mechanism 13 is realized.

[0055] As shown in Figures 5-6 the embodiment, the anti-falling mechanism 13 further includes a contact wheel 132, which is movably connected to the other end of the limiting rod 133 away from the pivoting point of the limiting rod 133 and abuts against the outer surface of the synchronous belt 1213, that is, the contact wheel 132 is located on the side surface of the synchronous belt 1213 away from the driving wheel 1212a, limiting the limiting rod 133, in the normal working state of the battery taking and placing unit, the limiting rod 133 is away from the synchronous shaft 1212, avoiding the engagement of the meshing teeth 1331 on the limiting rod 133 and the synchronous shaft 1212, avoiding affecting the normal rotation of the synchronous shaft 1212, and keeping the limiting rod 133 in the second state; when the synchronous belt 1213 is broken, it is considered as an abnormal situation, the contact wheel 132 and the synchronous belt 1213 lose a mutual abutting force, at this time the synchronous belt 1213 cannot limit the contact wheel 132, the position of the contact wheel 132 is offset, the limiting rod 133 is switched from the second state to the first state, so that the limiting rod 133 is engaged with the synchronous shaft 1212, limiting the synchronous shaft 1212 from further continuing to rotate and stopping the battery taking and placing unit 11 from falling. The structure is set based on the state of the synchronous belt 1213 to trigger the anti-falling of the battery taking and placing unit 11, which is simple and reliable Figure 4 As shown in Figure 4 the embodiment, the anti-falling mechanism 13 further includes a contact wheel 132, which is movably connected to the other end of the limiting rod 133 away from the pivoting point of the limiting rod 133 and abuts against the outer surface of the synchronous belt 1213, that is, the contact wheel 132 is located on the side surface of the synchronous belt 1213 away from the driving wheel 1212a, limiting the limiting rod 133, in the normal working state of the battery taking and placing unit, the limiting rod 133 is away from the synchronous shaft 1212, avoiding the engagement of the meshing teeth 1331 on the limiting rod 133 and the synchronous shaft 1212, avoiding affecting the normal rotation of the synchronous shaft 1212, and keeping the limiting rod 133 in the second state; when the synchronous belt 1213 is broken, it is considered as an abnormal situation, the contact wheel 132 and the synchronous belt 1213 lose a mutual abutting force, at this time the synchronous belt 1213 cannot limit the contact wheel 132, the position of the contact wheel 132 is offset, the limiting rod 133 is switched from the second state to the first state, so that the limiting rod 133 is engaged with the synchronous shaft 1212, limiting the synchronous shaft 1212 from further continuing to rotate and stopping the battery taking and placing unit 11 from falling. The structure is set based on the state of the synchronous belt 1213 to trigger the anti-falling of the battery taking and placing unit 11, which is simple and reliable

[0056] In the embodiment, the elastic member 131 is preferably a coil spring. By arranging the elastic member 131 to exert a force on the limiting rod 133, when the synchronous belt is broken or abnormal, the elastic member 131 can quickly respond to switch the anti-falling mechanism 13 from the second state to the first state, timely make the limiting rod 133 engage with the synchronous shaft 1212, effectively limit the continuous rotation of the synchronous shaft 1212, quickly limit the falling of the battery taking and placing unit 11, and improve the anti-falling response speed of the anti-falling mechanism 13 when the battery taking and placing unit 11 has a falling risk.

[0057] Preferably, the elastic member 131 is arranged within the included angle between the limiting rod 133 and the battery taking and placing unit 11, and the installation position thereof can be arranged at any position of the included angle. In the embodiment, the elastic member 131 is arranged at the farthest position from the connection between the limiting rod 133 and the fixed seat 111, that is, one end of the elastic member 131 is arranged at the farthest end of the limiting rod 133 away from the fixed seat 111, and the other end of the elastic member 131 is arranged on the battery taking and placing unit 11 at a corresponding distance from the fixed seat 111.

[0058] As shown in FIG. 6, the anti-falling mechanism 13 is in the first state, and the limiting rod 133 is engaged with the synchronous shaft 1212. Figure 3As shown, in this embodiment, the synchronous belt 1213 is specifically a chain, and the contact wheel 132 is a sprocket with meshing teeth matching the chain. As described above, the form and number of the synchronous belt 1213 can be set as required. In the case of a chain, the contact wheel 132 is set as a sprocket capable of cooperating with the chain, so that the contact wheel 132 can be kept in contact with the chain without other auxiliary components under the normal operation of the synchronous shaft 1212, which is simple and reliable, and to improve the transmission reliability, the synchronous belt 1213 uses two chains to transmit at the same time, so that even if one chain is broken, normal operation can be ensured, and if both chains are broken, the anti-falling mechanism can prevent the synchronous shaft 1212 from rotating. In this embodiment, the contact wheel 132 is arranged on the side of the limiting rod 133 facing the synchronous belt 1213, so that the contact wheel 132, the driving wheel 1212a and the driven wheel 1212b are synchronously operated in the same dimension, and the limiting rod 133 is kept at a certain distance from the synchronous shaft 1212 to avoid affecting the normal transmission of the driving wheel 1212a, the driven wheel 1212b and the synchronous belt 1213. The purpose of arranging the contact wheel 132 to realize the contact and limitation of the limiting rod 133 relative to the synchronous belt 1213 is to keep the meshing teeth 1331 on the limiting rod 133 and the synchronous shaft 1212 at a reasonable distance when the synchronous shaft 1212 is in a normal operating state, so as to ensure the normal operation of the synchronous shaft 1212 by arranging the contact wheel 132. In other embodiments, the contact wheel 132 can also be a smooth roller to realize the contact and limitation relative to the synchronous shaft 1212, and the roller is movably connected with the limiting rod 133, so that the roller abuts on the outer surface of the synchronous belt 1213 to keep the meshing teeth 1331 on the limiting rod 133 and the synchronous shaft 1212 at a certain distance, and does not affect the normal operation of the synchronous shaft 1212, and the type of the contact wheel 132 can be selected as appropriate.

[0059] The contact wheel 132 meshes with the outer side of the synchronous belt 1213 in the region between the driving wheel 1212a and the driven wheel 1212b. It is ensured that the contact wheel does not interfere with the normal rotation of the driving wheel or the driven wheel, and the normal operation of the battery taking and placing unit is ensured, and in the case of accidental breakage of the synchronous belt 1213, the contact wheel 132 can be limited due to contact with the driving wheel 1212a or the driven wheel 1212b, so that the limiting rod 133 cannot be quickly switched to the first state for anti-falling.

[0060] As Figure 3As shown, the anti-falling mechanism 13 further comprises a gear 1212c sleeved on the synchronous shaft 1212, which is fixedly installed on the synchronous shaft 1212 and rotates synchronously with the synchronous shaft 1212. The meshing teeth 1331 on the limiting rod 133 are engaged with the gear 1212c to limit the rotation of the synchronous shaft 1212, which can improve the reliability of the clamping and the tightness of the connection, and ensure that the synchronous shaft 1212 is difficult to rotate when the limiting rod 133 switches to the first state. In addition, clamping the gear 1212c provided on the synchronous shaft 1212 can also reduce the surface damage of the synchronous shaft 1212 caused by the clamping of the anti-falling mechanism 13 and the synchronous shaft 1212.

[0061] In addition to the way of clamping the limiting rod 133 by installing the gear 1212c on the synchronous shaft 1212, there are many ways to clamp the synchronous shaft 1212 and the limiting rod 133, for example, the following clamping ways:

[0062] The first way is to provide a gear groove on the synchronous shaft 1212 that matches the meshing teeth 1331 on the limiting rod 133, so that when the anti-falling mechanism 13 switches to the first state, the gear groove on the synchronous shaft 1212 and the meshing teeth 1331 on the limiting groove are clamped with each other.

[0063] The second way is to provide a gear protrusion on the synchronous shaft 1212 that matches the meshing teeth 1331 on the limiting rod 133, so that when the anti-falling mechanism 13 switches to the first state, the gear groove on the synchronous shaft 1212 and the meshing teeth 1331 on the limiting groove are clamped with each other.

[0064] As shown in the accompanying drawings, Figure 2 The present application also provides a battery transfer equipment 1, which comprises a battery taking and placing unit 11, a transmission unit 12 and an anti-falling mechanism 13.

[0065] The battery taking and placing unit 11 and the transmission unit 12 are movably connected and can be regularly maintained and replaced, and the transmission unit 12 drives the taking and placing unit to move up and down. The transmission unit 12 comprises a plurality of transmission assemblies respectively arranged at the corner positions of the battery taking and placing unit 11, and a driving assembly 121 respectively arranged at both sides of the battery taking and placing unit 11 to drive the transmission assemblies located at both ends of the same side of the battery taking and placing unit 11 to move synchronously. That is, the transmission unit 12 comprises the transmission assemblies and the driving assembly 121, and the driving assembly 121 drives the transmission assemblies to move up and down. The driving assembly 121 and the transmission assemblies can be selected in type and quantity as needed. The driving assembly 121 can drive multiple groups of transmission assemblies simultaneously, or multiple groups of driving assemblies 121 can collectively drive multiple groups of transmission assemblies, provided that the normal lifting operation of the battery taking and placing unit 11 is ensured to achieve the purpose of battery taking and placing operation.

[0066] The driving assembly 121 in the embodiment specifically comprises a driving motor, a synchronous shaft 1212 and a synchronous belt 1213, wherein the synchronous shaft 1212 is connected to and drives the transmission assemblies at both ends, and the driving motor is located at any one end of the synchronous shaft 1212 to drive the transmission assemblies to move up and down. The driving motor comprises a driving wheel 1212a and a driven wheel 1212b, the output shaft of the driving motor is coaxially connected to the driving wheel 1212a, the synchronous shaft 1212 is coaxially connected to the driven wheel 1212b, and the driving wheel 1212a and the driven wheel 1212b are connected by the synchronous belt 1213. The whole operation process of the transmission unit 12 is as follows: the power provided by the driving motor drives the driven wheel 1212b to rotate through the driving wheel 1212a and the synchronous belt 1213, and the synchronous shaft 1212 rotates synchronously with the driven wheel 1212b, thereby driving the transmission assemblies, i.e. the gears, at both ends of the synchronous shaft 1212 to rotate and move up and down relative to the rack. The transmission assemblies drive the battery taking and placing unit 11 connected thereto to move up and down, thereby achieving the purpose of transporting the battery.

[0067] The anti-falling mechanism 13 is arranged at a preset position of the battery taking and placing unit 11 to limit the rotation of the synchronous shaft 1212 and position the battery taking and placing unit 11.

[0068] Specifically, the anti-falling mechanism 13 is arranged at a preset position of the battery taking and placing unit 11 to limit the rotation of the synchronous shaft 1212 and position the battery taking and placing unit 11.

[0069] In the embodiment, when the transmission unit 12 of the battery transfer device 1 operates normally, the anti-falling mechanism 13 is in the second state, i.e. the anti-falling mechanism 13 is kept away from the synchronous shaft 1212 of the transmission unit 12 to avoid affecting the transmission unit 12 to drive the battery taking and placing unit 11 to move up and down. When a special situation occurs, the anti-falling mechanism 13 limits the rotation of the synchronous shaft 1212 by clamping the synchronous shaft 1212, thereby switching the anti-falling mechanism 13 from the second state to the first state, limiting the position of the battery taking and placing unit, keeping the battery taking and placing unit at the height position when the special situation occurs, i.e. stopping the battery taking and placing unit at the current position without large up and down movement, thereby limiting the position of the battery taking and placing unit 11 and achieving the anti-falling purpose, and improving the safety of the up and down movement of the battery taking and placing unit.

[0070] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A fall protection mechanism for a battery transfer apparatus, provided in a battery transfer apparatus provided with a battery pick-and-place unit for performing a battery pick-and-place operation, a plurality of transmission units for driving the battery pick-and-place unit to be raised and lowered, and a drive assembly for driving the transmission units to be moved in synchronization, wherein, The driving assembly comprises a driving motor, a synchronous shaft connected to the transmission unit, a driving wheel and a driven wheel respectively sleeved on the output shaft of the driving motor and the synchronous shaft, and a synchronous belt transmitted between the driving wheel and the driven wheel, characterized in that, The anti-falling mechanism comprises: A limiting rod, one end of which is pivotally connected to a preset position of the battery taking and placing unit and located below the synchronous shaft, the limiting rod being provided with meshing teeth on one side surface thereof facing the synchronous shaft for engaging with the synchronous shaft, the limiting rod being switched between a first state of engaging with the synchronous shaft and a second state of moving away from the synchronous shaft through swinging of the other end thereof; A contact wheel, which is movably connected to the other end of the limiting rod away from the pivot connection point and engages with the outer side surface of the synchronous belt in the region between the driving wheel and the driven wheel, so that the limiting rod is limited by the synchronous belt and is in the second state.

2. The fall arrest device of claim 1, wherein, The anti-falling mechanism further comprises a resilient member, one end of which is connected to the limiting rod and the other end of which is fixedly connected to the battery taking and placing unit, the resilient member applying a force to the limiting rod to switch it to the first state.

3. The fall arrest device of claim 1, wherein, The synchronous belt is a chain, and the contact wheel is a sprocket, the surface of the sprocket having meshing teeth matching the chain.

4. The fall arrest device of claim 1, wherein, The contact wheel is arranged on the side of the limiting rod facing the synchronous belt.

5. A fall arrest device according to any one of claims 1 to 4, wherein, The anti-falling mechanism further comprises a gear sleeved on the synchronous shaft, the meshing teeth on the limiting rod being engaged with the gear to limit the rotation of the synchronous shaft.

6. A battery transfer apparatus, characterized by, It comprises: A battery taking and placing unit for performing battery taking and placing operations; A transmission unit for driving the battery taking and placing unit to ascend and descend; A driving assembly for driving the transmission unit to move synchronously, the driving assembly comprising a driving motor, a synchronous shaft connected to the transmission unit at both ends, a driving wheel and a driven wheel respectively sleeved on the output shaft of the driving motor and the synchronous shaft, and a synchronous belt transmitted between the driving wheel and the driven wheel; An anti-falling mechanism arranged at a preset position of the battery taking and placing unit, the anti-falling mechanism limiting the rotation of the synchronous shaft to limit the battery taking and placing unit, Wherein, the anti-falling mechanism is any one of the anti-falling mechanisms according to claims 1-5.

7. A battery swap station, characterized by, It comprises the battery transfer equipment according to claim 6.

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