Anti-falling mechanism, battery transfer equipment comprising anti-falling mechanism and battery replacing station

Abstract

The invention discloses an anti-falling mechanism for battery transfer equipment, the battery transfer equipment is provided with a battery pick-and-place unit and a transmission unit for driving the battery pick-and-place unit to lift, and the transmission unit comprises a plurality of transmission assemblies and driving assemblies arranged on the two sides of the battery pick-and-place unit; the driving assembly comprises a driving motor, a synchronous shaft connected with the transmission assemblies at the two ends at the same time, a driving wheel, a driven wheel and a synchronous belt, the driving wheel and the driven wheel are arranged on an output shaft of the driving motor and the synchronous shaft in a sleeving mode respectively, and the synchronous belt conducts transmission between the driving wheel and the driven wheel. The anti-falling mechanism is clamped with the synchronizing shaft to fix the position of the battery pick-and-place unit; and in the second state, the anti-falling mechanism is far away from the synchronizing shaft. When a special situation occurs, the anti-falling mechanism limits rotation of the synchronous shaft in a mode of being clamped with the synchronous shaft, the anti-falling purpose is achieved, and it is guaranteed that the taking and placing unit is in a safe state in a normal working environment.

Description

[0001] This application is a division of a Chinese invention patent with an application date of December 2, 2021, application number CN202111461276.6, and name “Anti-fall mechanism, battery transfer equipment and battery swap station containing the same”. Technical Field

[0002] The present invention relates to the technical field of vehicle battery replacement, and in particular to an anti-fall mechanism, a battery transfer device comprising the same, and a battery replacement station. Background Art

[0003] When replacing batteries in existing electric vehicles, it is usually necessary to remove the depleted batteries from the electric vehicle and transport them to the battery rack, and remove the fully charged batteries from the battery rack and transport them to the electric vehicle. The battery rack usually stores the batteries in a stacked form, so when the battery transport equipment takes out or places the batteries, it is necessary not only to move the battery replacement equipment horizontally, but also to move the battery transport equipment vertically.

[0004] When the battery swap equipment moves vertically, the force is usually transmitted by belt drive or chain drive. If the conveyor belt breaks, it is easy to cause the battery swap actuator to fall out of control or even fall freely, thus damaging the battery swap equipment. It is also easy to cause the battery pack on the battery swap equipment to be damaged. In severe cases, it may even cause the battery pack to deflagrate and explode after being damaged, and even cause irreparable losses. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the battery exchange equipment falls due to the breakage of the conveyor belt, and to provide an anti-fall mechanism, a battery transfer device containing the same, and a battery exchange station.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The battery transport device is provided with a battery pick-up and placement unit for performing battery pick-up and placement operations and a transmission unit for driving the battery pick-up and placement unit to rise and fall, wherein the transmission unit comprises a plurality of transmission components respectively arranged at the end angle positions of the battery pick-up and placement unit, and a driving component respectively arranged at both sides of the battery pick-up and placement unit to drive the transmission components at both ends of the same side of the battery pick-up and placement unit to move synchronously, wherein the driving component comprises a driving motor, a synchronous shaft respectively connecting the transmission components 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, the anti-falling mechanism has a first state and a second state, in the first state, the anti-falling mechanism is engaged with the synchronous shaft to limit the battery pick-up and placement unit; in the second state, the anti-falling mechanism is away from the synchronous shaft, and the synchronous shaft rotates normally.

[0008] In this solution, the anti-fall mechanism is adopted, and the anti-fall mechanism is set to have two working states, so that the anti-fall mechanism can adapt to different matching states of the transmission unit in different situations. When the transmission unit is operating normally, that is, when the anti-fall mechanism is in the second state, the anti-fall mechanism and the synchronous shaft of the transmission unit remain disengaged to prevent the anti-fall mechanism from affecting the transmission unit to drive the battery pick-up and placement unit to rise and fall; and in special circumstances, that is, when the synchronous belt breaks, the anti-fall mechanism and the synchronous shaft are engaged to limit the rotation of the synchronous shaft, so that the anti-fall mechanism switches from the second state to the first state, realizes the position limiting of the battery pick-up and placement unit, prevents the synchronous shaft from continuing to rotate, and prevents the battery pick-up and placement unit from falling and stopping at the current position, thereby achieving the purpose of anti-falling and improving the safety of the battery pick-up and placement unit.

[0009] Preferably, the anti-fall mechanism includes: a limit rod, one end of which is pivotally connected to a preset position of the battery removal unit and is located below the synchronization shaft, and the limit rod is provided with engaging teeth for engaging the synchronization shaft on a side surface facing the synchronization shaft, and the limit rod switches between the first state and the second state by swinging its other end.

[0010] In this solution, the anti-fall mechanism switches between the first state and the second state by swinging the limit rod, which has a simple structure, avoids the influence of too many or too complicated structures on the operation of other parts, and has high reliability. A meshing tooth for engaging the synchronous shaft is provided on the surface of the limit rod facing the synchronous shaft. In special circumstances, the meshing tooth and the synchronous shaft are engaged to achieve the effect of limiting the rotation of the synchronous shaft, thereby enhancing the coordination effect between the synchronous shaft and the limit rod.

[0011] Preferably, the anti-fall mechanism also includes a contact wheel, which is movably connected to the other end of the limit rod away from its pivot point and abuts against the outer surface of the synchronous belt, so that the limit rod is limited by the synchronous belt and is in the second state.

[0012] In this solution, the anti-fall mechanism limits the limit rod by using the contact wheel to contact the outer surface of the synchronous belt. When the battery pick-up and placement unit is in normal working state, the limit rod is kept away from the synchronous shaft to avoid affecting the normal rotation of the synchronous shaft, that is, the limit 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 limit rod is switched to the first state. The limit rod is engaged with the synchronous shaft to limit the further rotation of the synchronous shaft and stop the battery pick-up and placement unit from falling. The structure is based on the state of the synchronous belt to trigger the anti-fall of the battery pick-up and placement unit, and the structure is simple and reliable.

[0013] Preferably, the anti-falling mechanism further comprises an elastic 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, and the elastic member is used to apply a force to the limiting rod to switch it to the first state.

[0014] In the present solution, an elastic member is provided to apply a force to the limit rod. When the synchronous belt breaks or becomes abnormal, the anti-fall mechanism can respond quickly to switch from the second state to the first state, and the limit rod and the synchronous shaft can be engaged in time to effectively limit the continued rotation of the synchronous shaft, thereby limiting the battery picking and placing unit, stopping the battery picking and placing unit at the current position, enhancing the anti-fall efficiency of the limit rod, and improving the anti-fall reaction speed of the anti-fall mechanism.

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

[0016] In this solution, the form and quantity of the synchronous belt can be set as needed. Specifically, when the synchronous belt is a chain, by setting the contact wheel to a sprocket that can cooperate with the chain, when the chain drives the synchronous shaft to operate normally, the contact wheel can remain engaged with the chain without the need for other auxiliary machine components, ensuring that the anti-fall mechanism remains in the second state, and the structure is simple and reliable.

[0017] Preferably, the contact wheel is engaged with the outer side surface of the synchronous belt located in the area between the driving wheel and the driven wheel.

[0018] In the present solution, this structural setting ensures that the contact wheel will not interfere with the normal rotation of the driving wheel or the driven wheel, thereby ensuring the normal operation of the battery pick-up and placement unit. Moreover, when the synchronous belt breaks accidentally, it can prevent the contact wheel from being limited due to contact with the driving wheel or the driven wheel, causing the limit rod to be unable to quickly switch to the first state to prevent falling.

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

[0020] In this solution, through the above-mentioned structural setting, the contact wheel is arranged on the side of the limit rod facing the synchronous belt, and the limit rod and the synchronous belt are staggered, so that the contact wheel and the driving wheel and the driven wheel rotate in the same dimension, and the limit rod will not affect the normal rotation of the driving wheel and the driven wheel.

[0021] Preferably, the anti-falling mechanism further comprises a gear sleeved on the synchronous shaft, and the meshing teeth on the limit rod mesh with the gear to limit the rotation of the synchronous shaft.

[0022] In this solution, by providing a gear on the synchronous shaft to engage with the limit rod, the reliability of the engagement and the tightness of the connection can be improved, ensuring that the synchronous shaft will not continue to rotate when the limit rod is switched to the first state. In addition, engaging the gear provided on the synchronous shaft can also reduce the surface damage of the synchronous shaft caused by the anti-fall mechanism directly engaging the synchronous shaft.

[0023] A battery transport device, comprising:

[0024] A battery pick-and-place unit, used to perform battery pick-and-place operations;

[0025] A transmission unit, used to drive the battery pick-and-place unit to rise and fall, the transmission unit comprising a plurality of transmission assemblies respectively arranged at the four end angles of the battery pick-and-place unit, and drive assemblies respectively arranged at both sides of the battery pick-and-place unit to drive the transmission assemblies at both ends of the same side of the battery pick-and-place unit to move synchronously, the drive assembly comprising a driving motor, a synchronous shaft respectively connected to the transmission assemblies 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-fall mechanism, arranged at a preset position of the battery pick-and-place unit, limits the battery pick-and-place unit by limiting the rotation of the synchronous shaft, wherein the anti-fall mechanism is the anti-fall mechanism of any of the above schemes.

[0026] In the present solution, when the transmission unit of the battery transfer equipment is operating normally, the anti-fall mechanism and the synchronous shaft of the transmission unit remain apart, and will not affect the transmission unit's driving of the battery pick-up and placement unit to lift and lower; in the event of special circumstances, such as when the synchronous belt is broken or abnormal, the anti-fall mechanism can quickly engage with the synchronous shaft to limit its continued rotation, so that the pick-up and placement unit stops at the height position when the special situation occurs, thereby limiting the position of the battery pick-up and placement unit, and no longer undergoing large-scale downward movement, thereby achieving the purpose of anti-falling and improving the safety of the battery pick-up and placement unit's lifting and lowering.

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

[0028] In the present solution, when the transmission unit of the battery transfer equipment inside the battery swap station is operating normally, the anti-fall mechanism and the synchronous shaft of the transmission unit remain apart, and will not affect the transmission unit's driving of the battery pick-up and placement unit to lift and lower; in the event of special circumstances, such as when the synchronous belt is broken or abnormal, the anti-fall mechanism can quickly engage with the synchronous shaft to limit its continued rotation, so that the pick-up and placement unit stops at the height position when the special situation occurs, thereby limiting the position of the battery pick-up and placement unit, and no longer undergoing large-scale downward movement, thereby achieving the purpose of anti-falling and improving the operating safety and reliability of the battery swap station.

[0029] The positive and progressive effect of the present invention is that: in the anti-fall mechanism, the battery transfer equipment and the battery swap station including the anti-fall mechanism, by adopting the anti-fall mechanism and setting the anti-fall mechanism to have two working states, the anti-fall mechanism can adapt to the transmission unit in different situations and have different matching states. When the transmission unit is operating normally, that is, when the anti-fall mechanism is in the second state, the anti-fall mechanism and the synchronous shaft of the transmission unit remain disengaged to prevent the anti-fall mechanism from affecting the transmission unit to drive the battery pick-up and placement unit to rise and fall; and in special circumstances, that is, when the synchronous belt breaks, the anti-fall mechanism switches from the second state to the first state, so that the anti-fall mechanism and the synchronous shaft are engaged to limit the synchronous shaft from continuing to rotate, so as to limit the height of the battery pick-up and placement unit, so that the battery pick-up and placement unit will not fall anymore and stop at the current position, so as to achieve the purpose of anti-falling and improve the safety of the battery pick-up and placement unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the structure of a battery swap station according to an embodiment of the present invention.

[0031] Figure 2 It is a schematic structural diagram of a battery transport device according to an embodiment of the present invention.

[0032] Figure 3 The figure is a schematic diagram of the overall structure of an anti-falling mechanism according to an embodiment of the present invention.

[0033] Figure 4Schematic diagram of the structure of the anti-falling mechanism in the first state according to an embodiment of the present invention.

[0034] Figure 5 Schematic diagram of the structure of the anti-falling mechanism in the second state according to an embodiment of the present invention.

[0035] Figure 6 It is a schematic diagram of the partial structure of the anti-falling mechanism according to an embodiment of the present invention.

[0036] Figure 7 The figure is a schematic structural diagram of a limit rod of an anti-falling mechanism according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] Battery swap station 100

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

[0040] Battery transport equipment 1, battery pick-and-place 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-fall mechanism 13, elastic member 131, contact wheel 132, limit rod 133, support unit 15

[0041] Battery rack 2 DETAILED DESCRIPTION

[0042] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0043] The present invention provides a battery swap station 100, the structure of which is as follows: Figure 1 In this embodiment, the battery swap station 100 includes a first battery swap module 101, a driving lane 102, and a second battery swap module 103 from left to right. When the vehicle to be replaced enters and stops at a specific position in the driving lane 102, the battery swap vehicle removes the battery from the bottom of the vehicle and moves it to the left or right to the first battery swap module 101 or the second battery swap module 103.

[0044] Here, we take the transportation of the battery to the second battery exchange module 103 as an example: after the battery exchange cart (not shown in the figure) moves the battery to the second battery exchange module 103, the battery transport device 1 in the second battery exchange module 103 removes the battery from the battery exchange cart and places it in a battery compartment of the battery rack 2, so that the battery rack 2 can charge the battery. After that, the battery transport device 1 takes out another fully charged battery from another battery compartment in the battery rack 2 and transports the battery to the battery exchange cart. The battery exchange cart transports the battery to the bottom of the vehicle by horizontal movement and installs it on the vehicle to achieve the purpose of battery exchange.

[0045] The structure of the battery transport device 1 in this embodiment is as follows: Figure 2-4 As shown, it specifically includes a support unit 15 for forming a frame structure, a battery pick-and-place unit 11 for performing a battery pick-and-place operation, and a transmission unit 12 for driving the battery pick-and-place unit 11 to move up and down relative to the support unit 15 .

[0046] The transmission unit 12 includes four transmission components respectively arranged at the four end corners of the battery pick-and-place unit 11, and drive components 121 respectively arranged at both sides of the battery pick-and-place unit 11 to drive the transmission components at both ends of the same side of the battery pick-and-place unit 11 to move synchronously. In other words, the transmission unit 12 includes a transmission component and a drive component 121, and the drive component 121 drives the transmission component to drive the battery pick-and-place unit 11 to move up and down. The type and quantity of the drive component 121 and the transmission component can be selected as needed, wherein the drive component 121 can select one group of drive components 121 to drive multiple groups of transmission components at the same time, or multiple groups of drive components 121 can be selected to jointly drive multiple groups of transmission components, provided that the normal lifting and lowering operation of the battery pick-and-place unit 11 is ensured to achieve the purpose of the battery pick-and-place operation. In this embodiment, each transmission component is a gear and rack transmission unit that transmits power through the transmission method of cooperating between gears and racks. Specifically, a rack is set on the column of the support unit 15, and the gear connected to the battery placement unit 11 is driven to rotate to achieve relative movement along the corresponding rack to achieve lifting, thereby driving the placement unit 11 to move up and down relative to the support unit 15.

[0047] In this embodiment, the driving assembly 121 includes a driving motor, a synchronous shaft 1212 and a synchronous belt 1213, wherein the synchronous shaft 1212 simultaneously connects and drives two transmission assemblies located at both ends of the same side to achieve synchronous rotation of the two transmission assemblies. Figure 3As shown, the driving motor is arranged at the upper end of the synchronous shaft 1212, and a driving wheel 1212a is arranged at the output shaft of the driving motor to realize the synchronous rotation of the output shaft and the driving wheel 1212a, and a driven wheel 1212b is arranged at the corresponding position of the synchronous shaft 1212 to realize the synchronous rotation of the synchronous shaft 1212 and the driven wheel 1212b, and the driving wheel 1212a and the driven wheel 1212b are connected by a synchronous belt 1213, so that the power output by the driving motor is transmitted to the driving wheel 1212a, the synchronous belt 1213, and the driven wheel 1212b in sequence through the output shaft and drives the synchronous shaft 1212 to rotate, thereby finally driving the gears of the transmission components arranged at both ends of the synchronous shaft 1212 to rotate synchronously. In this way, the relative lifting and moving of the rack of the transmission component is realized, so as to drive the battery pick-and-place unit 11 connected thereto to make the relative lifting and moving relative to the support unit 15, and realize the purpose of transporting the battery.

[0048] The type and quantity of the synchronous belt 1213 can be selected as needed, and a transmission belt or chain can be selected, or a double layer or a single layer of multiple synchronous belts can be set to run together. In this embodiment, the synchronous belt 1213 adopts a chain to meet the reliable operation requirements of the battery transport equipment under a large load.

[0049] The battery transport device 1 also includes an anti-fall mechanism 13, such as Figure 3 As shown, the anti-fall mechanism 13 is arranged corresponding to the setting position of the driven wheel 1212b on the synchronous shaft 1212. The purpose of setting the anti-fall mechanism 13 is to provide safety protection for the battery pick-up and placement unit 11 when an emergency occurs in the driving component 121 of the battery transport equipment 1, causing the battery transport equipment 1 to fail to operate normally, and effectively reduce the risk of damage to the battery transport equipment 1 caused by the driving component 121 when a failure occurs, specifically to prevent the battery pick-up and placement unit 11 from falling and causing equipment damage or accidents. Therefore, the anti-fall mechanism 13 can ensure the safety of the battery transport equipment 1 and the battery swap station 100, and minimize the risks caused by accidents.

[0050] In this embodiment, the anti-fall mechanism 13 is preferably set at the position of the synchronous shaft 1212 close to the driving motor, specifically corresponding to the driving wheel 1212a and the driven wheel 1212b. The anti-fall mechanism 13 has a first state and a second state, wherein the first state corresponds to the state in which the transmission unit 12 is in an emergency situation, specifically when the synchronous belt 1213 is broken or abnormal, the anti-fall mechanism 13 can maintain the entire battery transport device 1 in a safe stop state (see Figure 5 ); The second state refers to the state in which the anti-fall mechanism 13 and the synchronous shaft 1212 are kept away from each other when the entire battery transport device 1 is in normal working state (see Figure 4 ).

[0051] The working principle of the anti-fall mechanism 13 is as follows: when the transmission unit 12 is operating normally, the anti-fall mechanism 13 is in the second state, and the anti-fall 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-fall mechanism 13 affecting the lifting and lowering of the battery pick-up and placement unit 11 driven by the transmission unit 12, specifically, to avoid hindering the normal rotation of the synchronous shaft 1212. In special circumstances (i.e. when the synchronous belt 1213 breaks), the anti-fall mechanism 13 switches from the second state to the first state, so that the anti-fall mechanism 13 limits the continued rotation of the synchronous shaft 1212 by engaging with the synchronous shaft 1212, so as to limit the position of the battery pick-up and placement unit, so that the battery pick-up and placement unit 11 will no longer be lifted and stopped at the current position, so as to achieve the purpose of anti-fall, ensure that the battery pick-up and placement unit 11 is always in a safe state, and avoid the battery pick-up and placement unit 11 from falling and being damaged due to the failure of the transmission unit 12.

[0052] The specific structure of the anti-falling mechanism 13 of this embodiment is as follows: Figure 6-7 As shown, the anti-fall mechanism 13 includes a limit rod 133, one end of which is pivotally connected to the side of the battery pick-and-place unit 11 and is located below the synchronization shaft 1212. In this embodiment, a connection structure for pivotally connecting one end of the limit rod 133 to the frame of the battery pick-and-place unit 11 is provided by a fixing seat 111 disposed on the side of the battery pick-and-place unit 11. The specific structure of the fixing seat 111 is as follows: Figure 3 As shown, the L-shaped structural members are arranged in pairs, one end of the fixing seat 111 is fixed to the frame of the battery pick-and-place unit 11 through two mounting holes 1111, and the other end of the fixing seat 111 provides a rotating shaft 1112 so that the limiting rod 133 can be movably connected relative to the battery pick-and-place unit 11.

[0053] According to the above-mentioned structural arrangement, the limit rod 133 is movably connected with the rotating shaft 1112 provided by the fixed seat 111 through one end thereof, so that the other end of the limit rod 133 can swing with the connection point relative to the fixed seat 111 as the base point, thereby switching between the first state and the second state. In this movement mode, the structure of the limit rod 133 is simple, avoiding too many and too complicated structures to affect the operation of other components, and it has high reliability and is easy to realize position switching, which is beneficial to improving the operating reliability of the anti-fall mechanism and enhancing the coordination effect between the synchronization shaft 1212 and the limit rod 133.

[0054] Specifically, the limiting rod 133 is provided with a meshing tooth 1331 for engaging the synchronization shaft 1212 on a side surface facing the synchronization shaft 1212. Figure 5When the direction indicated by the middle arrow switches from the second state to the first state, the meshing teeth 1331 on the limit rod 133 engage with the synchronization shaft 1212, and the engagement strength is high, thereby limiting the continued rotation of the fixed synchronization shaft 1212, enhancing the coordination effect between the synchronization shaft 1212 and the limit rod 133, and realizing the anti-fall function of the anti-fall mechanism 13.

[0055] like Figure 5-6 As shown, in this embodiment, the anti-fall mechanism 13 also includes a contact wheel 132, which is movably connected to the other end of the limit rod 133 away from the pivot point of the limit 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, and limits the limit rod 133. When the battery pick-up and placement unit is in normal working state, the limit rod 133 is kept away from the synchronous shaft 1212, thereby avoiding the engagement of the meshing teeth 1331 on the limit rod 133 and the synchronous shaft 1212, thereby avoiding the influence of the meshing teeth 1331 on the limit rod 133 and the synchronous shaft 1212. The normal rotation of the synchronous shaft 1212 keeps the limit rod 133 in the second state; when the synchronous belt 1213 breaks, it is considered that an abnormal situation has occurred, and the contact wheel 132 and the synchronous belt 1213 lose a mutual abutment force. At this time, the synchronous belt 1213 cannot limit the contact wheel 132, and the position of the contact wheel 132 is offset, driving the limit rod 133 to switch from the second state to the first state, so that the limit rod 133 is engaged with the synchronous shaft 1212, limiting the further rotation of the synchronous shaft 1212 and stopping the battery pick-and-place unit 11 from falling. This structural setting triggers the anti-falling of the battery pick-and-place unit 11 based on the state of the synchronous belt 1213, and the structure is simple and reliable. Figure 4 As shown, the anti-falling mechanism 13 in this embodiment further includes an elastic member 131, one end of the elastic member 131 is connected to the limiting rod 133 and the other end is fixedly connected to the battery access unit 11, and the elastic member 131 is used to apply a force to the limiting rod 133 to switch it to the first state. Figure 4 The elastic member 131 shown in the figure is only used to illustrate the preferred setting position of the elastic member 131 and the connection relationship with the limit rod 133. The elastic member 131 can specifically adopt all components that can generate elasticity in the prior art to maintain the force applied to the limit rod 133 to switch to the first state.

[0056] In this embodiment, the elastic member 131 is preferably a coil spring. By setting the elastic member 131 to apply a force to the limit rod 133, when the synchronous belt breaks or becomes abnormal, the anti-fall mechanism 13 can respond quickly to switch from the second state to the first state, and the limit rod 133 can be engaged with the synchronous shaft 1212 in time to effectively limit the continued rotation of the synchronous shaft 1212, so as to quickly limit the descent of the battery pick-up and placement unit 11, thereby improving the anti-fall reaction speed of the anti-fall mechanism 13 when the battery pick-up and placement unit 11 is at risk of falling.

[0057] The preferred setting range of the elastic member 131 is as follows: within the angle formed by the limit rod 133 and the battery pick-and-place unit 11, and its installation position can be set at any position of the angle as required. In this embodiment, the elastic member 131 is set at the farthest position from the connection between the limit rod 133 and the fixing seat 111, that is, one end of the elastic member 131 is set at the farthest end of the limit rod 133 away from the fixing seat 111, and the other end of the elastic member 131 is set on the battery pick-and-place unit 11 at a corresponding distance from the fixing seat 111.

[0058] like Figure 3As shown, in this embodiment, the synchronous belt 1213 is specifically a chain, and the contact wheel 132 is a sprocket, and the surface of the sprocket has meshing teeth that match the chain. As above, the form and quantity of the synchronous belt 1213 can be set as needed. In the case where the synchronous belt 1213 is a chain, by setting the contact wheel 132 as a sprocket that can cooperate with the chain, when the synchronous shaft 1212 is in normal operation, the contact wheel 132 can be kept in contact with the chain without other auxiliary machine parts. The structure is simple and reliable. In addition, in order to improve the transmission reliability, the synchronous belt 1213 uses two chains for transmission at the same time. Even if one chain breaks, it can ensure normal operation. If both chains are broken, the anti-fall mechanism can prevent the synchronous shaft 1212 from rotating. In this embodiment, the contact wheel 132 is arranged on the side of the limit rod 133 facing the synchronous belt 1213, so that the contact wheel 132 and the driving wheel 1212a and the driven wheel 1212b are synchronously operated in the same dimension, and the limit rod 133 is kept at a certain distance from the synchronous shaft 1212 to prevent the limit rod 133 from affecting the normal transmission of the driving wheel 1212a, the driven wheel 1212b and the synchronous belt 1213. The purpose of setting the contact wheel 132 to achieve the contact limit of the limit rod 133 relative to the synchronous belt 1213 is to keep the meshing teeth 1331 on the limit rod 133 and the synchronous shaft 1212 at a reasonable distance when the synchronous shaft 1212 is in a normal operating state, so the normal operation of the synchronous shaft 1212 is ensured by setting the contact wheel 132. In other embodiments, the contact wheel 132 may also adopt a roller with a smooth surface to achieve contact and limitation relative to the synchronization shaft 1212. By movably connecting the roller with the limiting rod 133, the roller is abutted against the outer surface of the synchronization belt 1213, so as to maintain a certain distance between the meshing teeth 1331 on the limiting rod 133 and the synchronization shaft 1212 without affecting the normal operation of the synchronization shaft 1212. The type of the contact wheel 132 can be selected at will.

[0059] The contact wheel 132 is meshed with the outer surface of the synchronous belt 1213 located 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 access unit is ensured. Moreover, when the synchronous belt 1213 breaks unexpectedly, it can prevent the contact wheel 132 from being limited by 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 to prevent falling.

[0060] like Figure 3As shown, the anti-fall mechanism 13 also includes a gear 1212c sleeved on the synchronization shaft 1212, and the gear 1212c is fixedly mounted on the synchronization shaft 1212 and rotates synchronously with the synchronization shaft 1212. The meshing teeth 1331 on the limit rod 133 are meshed with the gear 1212c to limit the rotation of the synchronization shaft 1212, which can improve the reliability of the engagement and the tightness of the connection, and ensure that when the limit rod 133 is switched to the first state, the synchronization shaft 1212 is difficult to rotate. In addition, the engagement of the gear 1212c set on the synchronization shaft 1212 can also reduce the surface damage of the synchronization shaft 1212 caused by the engagement of the anti-fall mechanism 13 with the synchronization shaft 1212.

[0061] In addition to the method of engaging the mounting gear 1212c on the synchronization shaft 1212 with the limit rod 133, there are many other ways of engaging the synchronization shaft 1212 with the limit rod 133, such as the following engaging ways:

[0062] The first method is to provide a gear groove on the synchronization shaft 1212 that matches the meshing teeth 1331 on the limiting rod 133, so that when the anti-fall mechanism 13 is switched to the first state, the gear groove on the synchronization shaft 1212 and the meshing teeth 1331 on the limiting groove are engaged with each other;

[0063] Secondly, a gear protrusion matching the meshing teeth 1331 on the limiting rod 133 is provided on the synchronization shaft 1212, so that when the anti-fall mechanism 13 is switched to the first state, the gear groove on the synchronization shaft 1212 and the meshing teeth 1331 on the limiting groove can be engaged with each other.

[0064] like Figure 2 As shown, the present invention further provides a battery transport device 1, which includes a battery pick-up and placement unit 11, a transmission unit 12 and an anti-falling mechanism 13.

[0065] Among them, the battery pick-and-place unit 11 and the transmission unit 12 are movably connected and can be regularly repaired and replaced. The transmission unit 12 drives the pick-and-place unit to perform lifting and lowering movements. The transmission unit 12 includes a plurality of transmission components respectively arranged at the end angle positions of the battery pick-and-place unit 11, and a driving component 121 respectively arranged on both sides of the battery pick-and-place unit 11 to drive the transmission components at both ends of the same side of the battery pick-and-place unit 11 to move synchronously. In other words, the transmission unit 12 includes a transmission component and a driving component 121, and the driving component 121 drives the transmission component to drive the battery pick-and-place unit 11 to perform lifting and lowering movements. The type and quantity of the driving component 121 and the transmission component can be selected as needed, wherein the driving component 121 can select a group of driving components 121 to drive multiple groups of transmission components at the same time, or multiple groups of driving components 121 can be selected to jointly drive multiple groups of transmission components, provided that the normal lifting and lowering operation of the battery pick-and-place unit 11 is ensured to achieve the purpose of the battery pick-and-place operation.

[0066] The driving component 121 in this embodiment specifically includes a driving motor, a synchronous shaft 1212 and a synchronous belt 1213, wherein the synchronous shaft 1212 is simultaneously connected to and drives the transmission components at both ends, and the driving motor is located at either end of the synchronous shaft 1212 to drive the transmission component to perform lifting motion, the driving motor includes 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, the driving wheel 1212a and the driven wheel 1212b are connected via a synchronous belt 1213, and the entire operation process of the transmission unit 12 is as follows: the power provided by the driving motor drives the driven wheel 1212b to rotate via 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 components connected at both ends of the synchronous shaft 1212, i.e. the gears, to rotate, and generate lifting motion relative to the rack. The transmission assembly then drives the battery pick-and-place unit 11 connected thereto to move up and down, thereby achieving the purpose of transporting the batteries.

[0067] Among them, the purpose of setting the anti-fall mechanism 13 is to provide safety protection for the battery picking and placing unit 11 when an emergency occurs in the driving component 121 of the battery transfer equipment 1, causing the battery transfer equipment 1 to fail to operate normally, to prevent the battery picking and placing unit 11 from falling and causing equipment damage or accidents. The anti-fall mechanism 13 can ensure the safety of the battery transfer equipment 1 and minimize the risks caused by accidents.

[0068] Specifically, the anti-falling mechanism 13 is disposed at a preset position of the battery pick-up and placement unit 11 , and positions the battery pick-up and placement unit 11 by limiting the rotation of the synchronization shaft 1212 .

[0069] In the present embodiment, when the transmission unit 12 of the battery transfer equipment 1 is operating normally, the anti-fall mechanism 13 is in the second state, and the anti-fall mechanism 13 remains disengaged from the synchronization shaft 1212 of the transmission unit 12, so as to avoid affecting the transmission unit 12 driving the battery pick-up and placement unit 11 to be lifted and lowered; and in the event of a special situation, the anti-fall mechanism 13 limits the rotation of the synchronization shaft 1212 by engaging with the synchronization shaft 1212, so that the anti-fall mechanism 13 is switched from the second state to the first state, and the battery pick-up and placement unit is limited, so that the battery pick-up and placement unit is maintained at the height position when the special situation occurs, that is, the battery pick-up and placement unit will no longer be lifted or lowered significantly and will stop at the current position, thereby limiting the position of the battery pick-up and placement unit 11, achieving the anti-fall purpose, and improving the safety of the battery pick-up and placement unit lifting and lowering.

[0070] 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. An anti-falling mechanism for a battery transporting device, which is arranged in the battery transporting device, wherein the battery transporting device is provided with a battery pick-up and placement unit for performing a battery pick-up and placement operation, a transmission unit for driving the battery pick-up and placement unit to rise and fall, and a driving assembly for driving the transmission unit to move synchronously, 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 driving between the driving wheel and the driven wheel, characterized in that: The anti-fall mechanism comprises: a limit rod, one end of which is pivotally connected to a preset position of the battery access unit and is located below the synchronization shaft, the limit rod is provided with meshing teeth for engaging with the synchronization shaft on a surface of one side facing the synchronization shaft, and the limit rod switches between the first state of engaging with the synchronization shaft and the second state of being away from the synchronization shaft by swinging the other end thereof; A contact wheel is movably connected to the other end of the limiting rod away from its pivot point and abuts against the outer surface of the synchronous belt, so that the limiting rod is limited by the synchronous belt and is in the second state.

2. The anti-falling mechanism according to claim 1, characterized in that: The anti-falling mechanism also includes an elastic 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, and the elastic member applies a force to the limiting rod to switch it to the first state.

3. The anti-falling mechanism according to claim 1, characterized in that: The synchronous belt is a chain, the contact wheel is a sprocket, and the surface of the sprocket has meshing teeth matching the chain.

4. The anti-falling mechanism according to claim 1, characterized in that: The contact wheel is arranged on a side of the limiting rod facing the synchronous belt.

5. The anti-falling mechanism according to claim 1, characterized in that: The contact wheel is engaged with the outer side surface of the synchronous belt in the area between the driving wheel and the driven wheel.

6. The anti-falling mechanism according to any one of claims 1 to 5, characterized in that: The anti-falling mechanism also includes a gear sleeved on the synchronous shaft, and the meshing teeth on the limit rod are meshed with the gear to limit the rotation of the synchronous shaft.

7. A battery transport device, characterized in that: It includes: A battery pick-and-place unit, used to perform battery pick-and-place operations; A transmission unit, used for driving the battery pick-and-place unit to rise and fall; A driving assembly, used to drive the transmission unit to move synchronously, the driving assembly comprising a driving motor, a synchronous shaft respectively 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 transmitting between the driving wheel and the driven wheel; The anti-fall mechanism is arranged at a preset position of the battery pick-up and placement unit, and limits the position of the battery pick-up and placement unit by limiting the rotation of the synchronization shaft. Wherein, the anti-falling mechanism is the anti-falling mechanism described in any one of claims 1-6.

8. A battery swap station, characterized in that: It comprises the battery transport device as claimed in claim 7.

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