A battery pack transport device

Abstract

The present invention provides a battery pack transport device, comprising: a first support frame; an X-axis moving mechanism, driving the first support frame to move along the X-axis direction; a battery pack clamp, comprising a support device, two clamps, a first driving device, and two alignment mechanisms; the support device is movably connected to the first support frame along the Z-axis direction; the first driving device drives the two clamps to open or clamp synchronously; the Z-axis moving mechanism drives the battery pack clamp to move along the Z-axis direction; a battery pack push-pull mechanism, comprising a main frame, a second driving device, a hook mechanism and a transmission mechanism; the hook mechanism comprises a second support frame, a battery pack positioning module and a battery pack protection module. The battery pack is aligned and clamped by the battery pack clamp; the X-axis moving mechanism adjusts the X-axis coordinate of the battery pack; the Z-axis moving mechanism adjusts the Z-axis coordinate of the battery pack; the battery pack push-pull mechanism hooks the battery pack and pushes or pulls the battery pack to move along the Y-axis.

Description

[Technical field]

[0001] The present invention relates to the technical field of battery replacement for new energy vehicles, and in particular to a transportation device for a battery pack. [Background technology]

[0002] In the field of new energy vehicles, there are two main ways to charge battery packs: one is to directly charge the battery pack of a new energy vehicle by connecting it to a charging pile through a charging cable, which is common on the market, but this method requires new energy vehicles to wait for a long time; therefore, a second battery replacement technology has emerged, which is to directly replace the battery pack. The battery pack that is running out of power is removed and placed in the charging depot for charging, while the new energy vehicle is replaced with a fully charged battery pack, so that the waiting time for the new energy vehicle is shorter.

[0003] As for the second battery replacement technology, the removed battery pack needs to be placed in a charging depot for charging, so a transportation device needs to be designed to transport the battery pack. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a battery pack transportation device for transporting the battery pack.

[0005] The present invention is implemented as follows: A battery pack transportation device, comprising:

[0006] a first support frame;

[0007] An X-axis moving mechanism drives the first support frame to move along the X-axis direction;

[0008] A battery pack clamp comprises a support device, two clamps, a first drive device, and two alignment mechanisms; the support device is movably connected to the first support frame along the Z-axis direction; the two clamps are movably connected to the support device along the X-direction and are symmetrically arranged; the first drive device is fixedly connected to the support device and drives the two clamps to open or clamp synchronously; the alignment mechanisms are connected to the clamps one by one and are symmetrically arranged;

[0009] Z-axis moving mechanism, driving the battery pack clamp to move along the Z-axis direction;

[0010] A battery pack push-pull mechanism comprises a main frame, a second drive device, a hook mechanism and a transmission mechanism; the main frame is fixedly connected to the support device; the second drive device is fixedly connected to the main frame; the hook mechanism comprises a second support frame, a battery pack positioning module and a battery pack protection module; the second support frame is movably connected to the main frame along the Y-axis direction; the battery pack positioning module is connected to the second support frame; the battery pack protection module is connected to the second support frame; the transmission mechanism is respectively connected to the output ends of the hook mechanism and the second drive device.

[0011] Furthermore, the supporting device comprises:

[0012] The third support frame;

[0013] There are two first guide rails, which are fixedly connected to the third support frame and arranged along the X-axis direction;

[0014] The first slider, there are four;

[0015] in:

[0016] Each of the clamping jaws is fixedly connected to the two first sliding blocks, and the two first sliding blocks are slidably connected to the two first guide rails in a one-to-one correspondence;

[0017] The four first sliding blocks are arranged in a rectangular shape.

[0018] Furthermore, each of the clamping jaws comprises:

[0019] A clamping jaw seat connected to an output end of the first driving device;

[0020] There are several conveying rollers connected to the inner side of the clamping jaw seat and arranged in a row along the Y-axis direction, and the rotation axis is arranged along the X-axis direction;

[0021] A guide wheel assembly connected to the clamping jaw seat and arranged in a row along the Y-axis direction, and located outside the conveying roller and higher than the conveying roller, and the rotation axis is arranged along the Z-axis;

[0022] A first detection device, fixedly connected to the clamping jaw seat;

[0023] Wherein, the first detection device is used to detect whether the battery pack is too high or tilted.

[0024] Furthermore, the battery pack clamp further comprises:

[0025] A battery pack information identification or reading device, fixedly connected to the supporting device, the clamping claw or the alignment mechanism;

[0026] There are at least two limit protection members, which are fixedly connected to the clamping jaws in a one-to-one correspondence and arranged symmetrically;

[0027] The blocking member is fixedly connected to the supporting device and is used to resist each of the position limiting protection members.

[0028] Furthermore, the straightening mechanism comprises:

[0029] A bottom plate fixedly connected to the clamping jaw;

[0030] A second guide rail, fixedly connected to the base plate along the X-axis direction;

[0031] a second sliding block, slidably connected to the second guide rail;

[0032] A slider connecting plate, fixedly connected to the second slider;

[0033] A push block, fixedly connected to the slider connecting plate;

[0034] The third driving device is fixedly connected to the clamping jaw, and an output end of the third driving device is connected to the slider connecting plate.

[0035] Furthermore, the battery pack push-pull mechanism also includes:

[0036] A third guide rail, fixedly connected to the main frame along the Y-axis direction;

[0037] A third sliding block is slidably connected to the third guide rail and fixedly connected to the second support frame;

[0038] There are two limiters, which are fixedly connected to the main frame and located at two ends of the movement direction of the hook mechanism;

[0039] in:

[0040] The transmission mechanism comprises:

[0041] There are two synchronous belt pulleys, one of which is fixedly connected to the output end of the second driving device; the other synchronous belt pulley is rotatably connected to the main frame;

[0042] A synchronous belt, which is sleeved on the two synchronous pulleys;

[0043] The synchronous belt clamp is fixedly connected to the hook mechanism and clamps the synchronous belt.

[0044] Furthermore, the battery pack protection module includes:

[0045] An overload protection component, movably connected to the second support frame and connected to the transmission mechanism;

[0046] An overvoltage protection component, fixedly connected to the battery pack positioning module;

[0047] Wherein, the battery pack positioning module is movably connected to the second support frame along the Z-axis direction.

[0048] Furthermore, the overload protection component comprises:

[0049] A fixed block, provided with a groove and fixedly connected to the second support frame;

[0050] An optical axis, fixedly connected to the fixing block and passing through the groove;

[0051] A connecting member, slidably sleeved on the optical axis, located in the groove, and fixedly connected to the transmission mechanism;

[0052] A first spring is sleeved on the optical axis, one end of which abuts against the inner wall of the groove, and the other end of which abuts against the connecting member, and the first spring is sleeved on both ends of the connecting member of the same optical axis;

[0053] There are two first sensing sheets, each of which is fixedly connected to the connecting member;

[0054] There are two second detection devices, which are respectively fixedly connected to the second support frame and are used to detect the first sensor sheet.

[0055] Further, the battery pack positioning module includes two positioning pins;

[0056] Each of the positioning pins comprises a conical positioning portion at the top, a limiting portion in the middle, and an optical axis portion at the bottom;

[0057] The outer diameter of the limiting portion is greater than the outer diameter of the optical axis portion.

[0058] Furthermore, the overvoltage protection component includes:

[0059] Adapter;

[0060] The second spring has two;

[0061] The connecting plate is provided with two vertical stepped through holes; each of the vertical stepped through holes includes a large hole portion at the top and a small hole portion at the bottom; the diameter of the large hole portion is greater than the outer diameter of the second spring; the outer diameter of the optical axis portion is less than the diameter of the small hole portion, and is greater than the outer diameter of the second spring; the connecting plate is fixedly connected to the second support frame;

[0062] A second sensing sheet, fixedly connected to the adapter;

[0063] a third detection device, fixedly connected to the second support frame and used for detecting the second sensing sheet;

[0064] in:

[0065] The optical axis parts pass through the vertical stepped through holes one by one and are then fixedly connected to the adapter;

[0066] The limiting portion is located in the large hole portion;

[0067] The conical positioning portion protrudes from the top end of the connecting plate;

[0068] The second springs are sleeved on the optical axis portion one by one and respectively abut against the bottom end of the limiting portion and the bottom surface of the large hole portion.

[0069] The advantages of the present invention are: a battery pack transport device, comprising: a first support frame; an X-axis moving mechanism, driving the first support frame to move along the X-axis direction; a battery pack clamp, comprising a support device, two clamps, a first driving device, and two alignment mechanisms; the support device is movably connected to the first support frame along the Z-axis direction; the first driving device drives the two clamps to open or clamp synchronously; the Z-axis moving mechanism drives the battery pack clamp to move along the Z-axis direction; a battery pack push-pull mechanism, comprising a main frame, a second driving device, a hook mechanism and a transmission mechanism; the hook mechanism comprises a second support frame, a battery pack positioning module and a battery pack protection module. The battery pack is aligned and clamped by the battery pack clamp; the X-axis moving mechanism adjusts the X-axis coordinate of the battery pack; the Z-axis moving mechanism adjusts the Z-axis coordinate of the battery pack; the battery pack push-pull mechanism hooks the battery pack and pushes or pulls the battery pack to move along the Y-axis.

Brief Description of the Drawings

[0070] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0071] Figure 1 The transport device of the present invention is a three-dimensional Figure 1 .

[0072] Figure 2 The transport device of the present invention is a three-dimensional Figure 2 .

[0073] Figure 3 It is a side view of the transport device described in the present invention.

[0074] Figure 4 1 is a top view of the transport device of the present invention.

[0075] Figure 5 It is a schematic diagram of the assembly of the battery pack clamp, the battery pack push-pull mechanism, and the battery pack of the present invention.

[0076] Figure 6 It is a stereoscopic diagram of the battery pack gripper of the present invention grasping a battery pack.

[0077] Figure 7 It is a schematic diagram of the assembly of a clamp and a battery pack of the present invention.

[0078] Figure 8 It is a three-dimensional representation of the straightening mechanism described in the present invention. Figure 1 .

[0079] Fig. 9 It is a three-dimensional representation of the alignment mechanism described in the present invention. Figure 2 .

[0080] Fig.10 The battery pack push-pull mechanism of the present invention hooks the three-dimensional battery pack Figure 1 .

[0081] Fig.11 The battery pack push-pull mechanism of the present invention hooks the three-dimensional battery pack Figure 2 .

[0082] Fig.12 It is a three-dimensional diagram of the hook mechanism described in the present invention.

[0083] Fig.13 It is a bottom view of the hook mechanism described in the present invention.

[0084] Fig.14 It is a structural schematic diagram of the overvoltage protection component described in the present invention.

[0085] Description of reference numerals:

[0086] A first support frame 1;

[0087] X-axis moving mechanism 2, ground rail 21, first gear rack transmission assembly 22, first reducer 23, second reducer 24, third reducer 25, first servo motor 26, connecting rod 27, fourth guide rail 28, fourth slider 29;

[0088] Battery pack clamp 3, support device 31, third support frame 311, first guide rail 312, first slider 313, clamp 32, clamp seat 321, conveying roller 322, guide wheel group 323, first detection device 324, first drive device 33, straightening mechanism 34, bottom plate 341, second guide rail 342, second slider 343, slider connecting plate 344, push block 345, third drive device 346, battery pack information identification or reading device 35, limit protection member 36, blocking member 37,

[0089] Z-axis moving mechanism 4, second servo motor 41, fourth reducer 42, fifth guide rail 43, fifth slider 44, second gear rack transmission assembly 45;

[0090] Battery pack push-pull mechanism 5, main frame 51, second driving device 52, hook mechanism 53, second support frame 531, fixing block 532, groove 5321, optical axis 533, connecting piece 534, first spring 535, first sensing sheet 536, second detection device 537, positioning pin 538, conical positioning part 5381, limiting part 5382, optical axis part 5383, adapter 539, second spring 5310, connecting plate 5320, vertical step through hole 53201, second sensing sheet 5330, third detection device 5340; transmission mechanism 54, synchronous pulley 541, synchronous belt 542, synchronous belt clamp 543, third guide rail 55, third slider 56, limiting piece 57,

[0091] Battery Pack 6. [Specific implementation method]

[0092] In the description of the present invention, it is necessary to understand that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0093] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0094] See also Figures 1 to 14 As shown. Fig.12 and Fig.13 The optical axis 533 and the positioning pin 538 are in an explosive decomposition state.

[0095] A battery pack transportation device of the present invention comprises:

[0096] A first support frame 1;

[0097] An X-axis moving mechanism 2 drives the first support frame 1 to move along the X-axis direction;

[0098] The battery pack clamp 3 includes a supporting device 31, two clamps 32, a first driving device 33, and two straightening mechanisms 34; the supporting device 31 is movably connected to the first supporting frame 1 along the Z-axis direction; the two clamps 32 are movably connected to the supporting device 31 along the X-direction and are symmetrically arranged; the first driving device 33 is fixedly connected to the supporting device 31, and drives the two clamps 32 to open or clamp synchronously to clamp the battery pack 6; the straightening mechanisms 34 are connected to the clamps 32 one by one and are symmetrically arranged; the first driving device 33 drives the two clamps 32 to open synchronously to release the battery pack 6, or to clamp synchronously to grab the battery pack 6, and then the battery pack 6 is straightened by the straightening mechanism 34 to avoid skewing, so as to facilitate the subsequent auxiliary transportation of the battery pack 6 into the warehouse.

[0099] A Z-axis moving mechanism 4 drives the battery pack clamping claw 3 to move along the Z-axis direction;

[0100] The battery pack push-pull mechanism 5 includes a main frame 51, a second drive device 52, a hook mechanism 53 and a transmission mechanism 54; the main frame 51 is fixedly connected to the support device 31; the second drive device 52 is fixedly connected to the main frame 51; the hook mechanism 53 includes a second support frame 531, a battery pack positioning module and a battery pack protection module; the second support frame 531 is movably connected to the main frame 51 along the Y-axis direction; the battery pack positioning module is connected to the second support frame 531; the battery pack protection module is connected to the second support frame 531; the transmission mechanism 54 is respectively connected to the output ends of the hook mechanism 53 and the second drive device 52.

[0101] In a specific implementation, the second driving device 52 may be an actuator, such as a motor.

[0102] The transmission mechanism 54 is driven by the driving device 52, which in turn drives the hook mechanism 53 to move along a predetermined trajectory. The battery pack positioning module and the battery pack are positioned and matched to hook the battery pack, and then the battery pack is transported to the charging station to realize mechanized operation. The battery pack is also protected by the battery pack protection module to avoid damage to the battery pack during transportation.

[0103] In a specific implementation, both the X-axis moving mechanism 2 and the Z-axis moving mechanism 4 can adopt existing linear slides, which are standard parts and can be purchased directly.

[0104] Of course, the embodiment shown in the accompanying drawings can also be used, wherein the X-axis moving mechanism 2 includes a ground rail 21, a first gear rack transmission assembly 22, a first reducer 23, a second reducer 24, a third reducer 25, a first servo motor 26, a connecting rod 27, a fourth guide rail 28 and a fourth slider 29. The first servo motor 26 is connected to the first reducer 23, and the first reducer 23, the second reducer 24 and the third reducer 25 are connected by the connecting rod 27. This method can avoid unilateral force. There are first gear rack transmission assemblies 22 on both sides of the ground rail 21, wherein the rack is fixed to the side of the ground rail along the X-axis direction, and the gear is connected to the output end of the second reducer 24 and the third reducer 25. The fourth guide rail 28 is fixed to the ground rail 21 along the X-axis direction, and the fourth slider 29 is slidably connected to the fourth guide rail and fixedly connected to the first support frame 1. Thus, the first servo motor 26 drives the first reducer 23, drives the second reducer 24 and the third reducer 25 to move, and then drives the first gear rack transmission assembly 22 to operate, so that the first support frame 1 can be moved along the X-axis.

[0105] In the embodiment shown in the accompanying drawings, the Z-axis moving mechanism 4 includes a second servo motor 41, a fourth reducer 42, a second gear rack transmission assembly 45, a fifth guide rail 43 and a fifth slider 44. The second servo motor 41 is connected to the fourth reducer 42, and the fourth reducer 42 is connected to the gear of the second gear rack transmission assembly 45, and its rack is fixed to the first support frame 1 along the Z axis; the fifth slider 44 is fixed to the third support frame 311 and slidably connected to the fifth guide rail 43, and the fifth guide rail 43 is fixed to the first support frame 1 along the Z axis. Therefore, the second servo motor 41 drives the fourth reducer 42, drives the second gear rack transmission assembly 45 to operate, realizes the movement of the third support frame 311 along the Z axis, and finally drives the battery pack clamp 3 and the battery pack push-pull mechanism 5 to move along the Z axis.

[0106] In a specific implementation, limiting devices such as guide rail clamps or limit blocks may be provided at both ends of each guide rail to prevent corresponding equipment from falling off the guide rail.

[0107] The supporting device 31 comprises:

[0108] A third support frame 311;

[0109] There are two first guide rails 312, which are fixedly connected to the third support frame 311 and arranged along the X-axis direction;

[0110] There are four first sliders 313;

[0111] in:

[0112] Each of the clamping jaws 32 is fixedly connected to the two first sliding blocks 313, and the two first sliding blocks 323 are slidably connected to the two first guide rails 312 in a one-to-one correspondence;

[0113] The four first sliding blocks 313 are arranged in a rectangular shape.

[0114] Each of the clamping jaws 32 comprises:

[0115] The clamping jaw seat 321 is connected to the output end of the first driving device 33;

[0116] There are several conveying rollers 322 connected to the inner side of the clamping claw seat 321 and arranged in a row along the Y-axis direction, and the rotation axis is arranged along the X-axis direction; the conveying rollers 322 are arranged at the bottom of the battery pack 6 to protect the battery pack 6. In a specific embodiment, the outer surface of each conveying roller 322 has a layer of rubber coating, which can protect the bottom of the battery pack 6. Similarly, the outer surface of the guide wheel of the guide wheel group 323 also has a layer of rubber coating, which protects the side of the battery pack 6.

[0117] The guide wheel group 323 is connected to the clamping claw seat 321 and is arranged in a row along the Y-axis direction. It is located on the outside of the conveying roller 322 and is higher than the conveying roller 322. At the same time, the rotation axis is arranged along the Z-axis. The guide wheel group 323 guides and protects the battery pack 6 on the side of the battery pack 6.

[0118] The first detection device 324 is fixedly connected to the clamping claw seat 321. The function of the first detection device 324 is to detect whether the battery pack is tilted or too high.

[0119] The first detection device 324 is a through-beam sensor, there are two of them, and they are arranged along two intersecting diagonal lines. Figure 6 As shown, each through-beam sensor includes a transmitter and a receiver, and is arranged along a diagonal line, and the transmitters and receivers of the two through-beam sensors form a rectangle; only when both through-beam sensors are not blocked can it be ensured that the signal sent by the transmitter can be received by the receiver, which means that the battery pack is not too high or tilted at this time, otherwise the receiver cannot receive the signal, resulting in interruption of the through-beam sensor signal.

[0120] The first detection device 324 is used to detect whether the battery pack is too high or tilted.

[0121] When clamping the battery pack, the clamping claw 32 holds the battery pack to the bottom, so that the bottom surface of the battery pack 6 is in full contact with the upper surface of the conveying roller 322, so as to smoothly convey the battery pack 6, and play a role in assisting transportation when the battery pack 6 is put into storage. At the same time, the use of the conveying roller 322 can greatly reduce the friction of the battery pack 6 during the storage process, and the rubber material of the roller can also protect the bottom of the battery pack; on the other hand, the guide wheel group 323 can ensure that the battery pack 6 does not collide with other parts during transportation, thereby protecting the battery pack and guiding it.

[0122] In a specific implementation, there are two first driving devices 33, and the output ends are connected to the clamping jaws 32 one by one. The first driving device 33 can be an actuator, such as a cylinder.

[0123] The battery pack clamp 3 also includes:

[0124] The battery pack information identification or reading device 35 is fixedly connected to the support device 31, the clamping claw 32 or the straightening mechanism 34; the battery pack information identification or reading device 35 is used to identify and read the battery pack information, which is convenient for automated management and tracking of the battery pack. The battery pack information identification or reading device 35 can select the corresponding device according to the information setting method on the battery pack, such as RFID, barcode scanner, visual device, etc. The battery pack information identification or reading device 35 is fixed to the clamping claw seat 321 through a fixing plate.

[0125] There are at least two limit protection members 36, which are fixedly connected to the clamping jaws 32 in a one-to-one correspondence and are symmetrically arranged;

[0126] The blocking member 37 is fixedly connected to the supporting device 31 and is used to resist each of the limiting protection members 36 .

[0127] Under normal working conditions, the clamping action of the two clamping jaws 32 can be controlled by the first driving device 33. When the first driving device 33 fails and cannot control the two clamping jaws 32, the position limiting protection member 36 abuts against the blocking member 37, playing a hard position limiting role, preventing the two clamping jaws 32 from clamping the battery pack 6 too tightly and damaging or even exploding the battery pack 6. Therefore, the position limiting protection member 36 can limit the minimum distance between the two clamping jaws 32, protect the battery pack 6, and eliminate potential safety hazards.

[0128] The straightening mechanism 34 comprises:

[0129] A bottom plate 341, fixedly connected to the clamping jaw 32;

[0130] The second guide rail 342 is fixedly connected to the bottom plate 341 along the X-axis direction;

[0131] A second sliding block 343, slidably connected to the second guide rail 342;

[0132] A slider connecting plate 344, fixedly connected to the second slider 343;

[0133] A push block 345, fixedly connected to the slider connecting plate 344;

[0134] The third driving device 346 is fixedly connected to the clamping jaw 32 , and an output end thereof is connected to the slider connecting plate 344 .

[0135] The third driving device 346 drives the slider connecting plate 344 to move, and the push block 345 is fixedly connected to the slider connecting plate 344. Driven by the third driving device 346, the push block 345 can align the battery pack. The slider connecting plate 344 slides along the second guide rail 342 to guide the sliding direction of the push block 345 to ensure the movement accuracy.

[0136] The battery pack push-pull mechanism 5 also includes:

[0137] A third guide rail 55, fixedly connected to the main frame 51 along the Y-axis direction;

[0138] The third slider 56 is slidably connected to the third guide rail 55 and fixedly connected to the second support frame 531; the second support frame 531 is slidably connected to the main frame 1 through the third guide rail 55 and the third slider 56, thereby realizing the movement of the hook mechanism 53 along the Y-axis direction.

[0139] There are two limiting members 57, which are fixedly connected to the main frame 51 and located at both ends of the movement direction of the hook mechanism 53; the limiting members 57 are used to limit the hook mechanism 53 at both ends to prevent the hook mechanism 53 from falling off the main frame 51, thereby playing a safety protection role.

[0140] in:

[0141] The transmission mechanism 54 comprises:

[0142] There are two synchronous pulleys 541, one of which is fixedly connected to the output end of the second driving device 52; the other synchronous pulley 541 is rotatably connected to the main frame 51;

[0143] A synchronous belt 542 is sleeved on the two synchronous pulleys 541;

[0144] The synchronous belt clamping plate 543 is fixedly connected to the hook mechanism 53 and clamps the synchronous belt 542 .

[0145] In a specific embodiment, the second driving device 52 adopts a motor, whose output shaft and the synchronous pulley 541 are connected by a key; another synchronous pulley 541 is embedded with a bearing, and the inner ring of the bearing is embedded with a rotating shaft, and the rotating shaft is fixed to the main frame 51, thereby realizing the rotational connection between the synchronous pulley 541 and the main frame 51.

[0146] The second driving device 52 drives the synchronous pulley 541 connected to its output end to rotate, and then drives another synchronous pulley 541 to rotate through the synchronous belt 542. The synchronous belt 542 moves, drives the synchronous belt clamping plate 543 to move, and then drives the claw mechanism 53 to move.

[0147] The battery pack protection module comprises:

[0148] The overload protection component is movably connected to the second support frame 531 and connected to the transmission mechanism 54; the overload protection component can protect the hook mechanism 53 when the second drive device 52 is overloaded, that is, it can play a role in preventing overload.

[0149] The overvoltage protection component is fixedly connected to the battery pack positioning module; when the hook mechanism 53 grabs the battery pack 6, if the battery pack positioning module and the battery pack are not accurately positioned, the overvoltage protection component plays an anti-overvoltage role, thereby preventing damage to the battery pack.

[0150] The battery pack positioning module is movably connected to the second support frame 531 along the Z-axis direction.

[0151] The overload protection component comprises:

[0152] The fixing block 532 is provided with a groove 5321 and is fixedly connected to the second supporting frame 531;

[0153] The optical axis 533 is fixedly connected to the fixing block 532 and passes through the groove 5321;

[0154] The connecting member 534 is slidably mounted on the optical axis 533, is located in the groove 5321, and is fixedly connected to the transmission mechanism 54; in a specific embodiment, the connecting member 534 is L-shaped, its vertical plate is fixedly connected to the synchronous belt clamp 543, and the horizontal plate is placed in the groove 5321.

[0155] A first spring 535 is sleeved on the optical axis 533, with one end abutting against the inner wall of the groove 5321 and the other end abutting against the connecting member 534, and the first spring 535 is sleeved on both ends of the connecting member 534 of the same optical axis 533;

[0156] In a specific implementation, the start, stop and movement of the hook mechanism 53 are controlled by the second driving device 52. When the second driving device 52 fails due to an abnormality, the hook mechanism 53 may not be controlled. Fig.12 For example, if the hook mechanism 53 moves to the left, the hook mechanism 53 drives the connecting member 534 to move to the left, compressing the first spring 535 on the left, and the connecting member 534 is buffered and blocked by the first spring 535 on the left, thereby achieving a buffered and blocked protection for the hook mechanism 53 to avoid hard collision and damage to the equipment; conversely, the first spring 535 on the right is compressed, and the hook mechanism 53 is buffered and limited and blocked by the first spring 535 on the right.

[0157] There are two first sensing sheets 536, which are fixedly connected to the connecting member 534 respectively;

[0158] There are two second detection devices 537 , which are respectively fixedly connected to the second support frame 531 and are used to detect the first sensor sheet 536 and correspond to the overload alarm points preset on both sides of the connecting member 534 .

[0159] In a specific embodiment, the second detection device 537 may be a sensor, such as a grating sensor. Fig.13 As shown, the two first sensing sheets 536 are respectively fixed at the bottom of the connecting member 534. The second support frame 531 is provided with an escape opening at the fixing block 532; and the two second detection devices 537 are fixed at the bottom of the device fixing block 532 and are located in the escape opening.

[0160] In a specific implementation, the second drive device 52, the second detection device 537 and the control device can be connected in communication, such as a PLC. The positions of the first sensing sheet 536 and the second detection device 537 can be preset. When the second detection device 537 does not detect the first sensing sheet 536, it indicates that the second drive device 52 is working normally; otherwise, it indicates that the second drive device 52 is abnormal and cannot control the hook mechanism 53. At this time, the second detection device 537 feeds back a signal to the control device, and the control device controls the second drive device 52 to stop working. Furthermore, an alarm device can be set, and the control device controls the alarm device to issue an alarm prompt to remind the staff to come and deal with the abnormality.

[0161] The battery pack positioning module includes two positioning pins 538;

[0162] Each of the positioning pins 538 includes a conical positioning portion 5381 at the top, a limiting portion 5382 in the middle, and an optical axis portion 5383 at the bottom; the conical positioning portion 5381 has a conical shape that can serve as a guide during positioning.

[0163] The outer diameter of the limiting portion 5382 is greater than the outer diameter of the optical axis portion 5383 .

[0164] The overvoltage protection component comprises:

[0165] Adapter 539;

[0166] The second spring 5310 has two;

[0167] The connecting plate 5320 is provided with two vertical stepped through holes 53201; each of the vertical stepped through holes 53201 includes a large hole portion at the top and a small hole portion at the bottom; the diameter of the large hole portion is greater than the outer diameter of the second spring 5310; the outer diameter of the optical axis portion 5383 is less than the diameter of the small hole portion, and is greater than the outer diameter of the second spring 5310; the connecting plate 5320 is fixedly connected to the second support frame 531;

[0168] The second induction sheet 5330 is fixedly connected to the adapter 5320;

[0169] A third detection device 5340, fixedly connected to the second support frame 531, and used to detect the second sensor sheet 5330;

[0170] in:

[0171] The optical axis portions 5383 pass through the vertical stepped through holes 53201 one by one, and are then fixedly connected to the adapter 539;

[0172] The limiting portion 5382 is located in the large hole portion;

[0173] The conical positioning portion 5381 protrudes from the top end of the connecting plate 5320;

[0174] The second springs 5310 are respectively sleeved on the optical axis portion 5383 and respectively press against the bottom end of the limiting portion 5382 and the bottom surface of the large hole portion.

[0175] The working principle of the overvoltage protection component:

[0176] The third detection device 5340 is also communicatively connected to the control device.

[0177] During normal operation, the battery pack positioning module moves along a predetermined trajectory and is positioned with the positioning hole at the end of the battery pack. The conical positioning portion 5381 of the positioning pin 538 is inserted into the positioning hole. At this time, the battery pack does not apply pressure to the positioning pin 538 in the vertical direction, and the side wall of the positioning hole is only hooked by the positioning pin 538 to limit the position. At this time, the third detection device 5340 does not detect the second sensor sheet 5330.

[0178] If an abnormality occurs resulting in inaccurate positioning, such as: the positioning pin 538 and the positioning hole at the end of the battery pack are not aligned, or the positioning pin 538 presses against other surfaces of the battery pack, the battery pack will press the positioning pin 538, applying vertical pressure to the positioning pin 538, and the positioning pin 538 will move downward, driving the adapter 539 and the second sensor sheet 5330 to move downward and compress the second spring 5310. When the third detection device 5340 detects the second sensor sheet 5330, the third detection device 5340 feeds back a signal to the control device, and the control device immediately stops the device from operating to prevent the device from damaging the battery pack, thereby preventing overpressure.

[0179] Specific usage:

[0180] The charging station adopts a cabinet structure, and is provided with several layers of battery pack accommodating chambers. The charging station is located at the end of the clamping jaws 32. The center line of the battery pack accommodating chamber and the center lines of the two clamping jaws 32 can be collinear.

[0181] The battery packs have been temporarily stored at the designated transfer station.

[0182] The X-axis moving mechanism 2, the Z-axis moving mechanism 4, the first driving device 33, the second driving device 52, the third driving device 346, the first detection device 324, the second detection device 537, the third detection device 5340, and the battery pack information identification or reading device 35 are respectively connected to the control device for communication and unified control. The control device can adopt PLC.

[0183] Set up working procedures.

[0184] The control device first controls the first driving device 33 to drive the two clamping jaws to open synchronously;

[0185] Then the X-axis moving mechanism 2 and the Z-axis moving mechanism 4 are controlled to work, and the clamping jaws 32 and the battery pack push-pull mechanism 5 are moved to a predetermined position, so that the battery pack is located between the two clamping jaws 2, and the conveying roller 322 is located below the bottom surface of the battery pack 6, and the positioning pin 538 is located directly below the positioning hole of the battery pack 6;

[0186] Then, the first driving device 33 is controlled to drive the two clamping jaws 32 to clamp synchronously, and then the Z-axis moving mechanism 4 is controlled to rise, and the battery pack 6 is placed on the clamping jaws 32, so that the bottom surface of the battery pack is aligned with the upper surface of the conveying roller 322, and the battery pack is clamped by the two clamping jaws 32; and at this time, the positioning pins 538 are inserted into the positioning holes of the battery pack 6 one by one;

[0187] At this time, the first detection device 324 detects whether the battery pack is too high or tilted. If the signal is not interrupted, it means that there is no phenomenon of too high, etc., and the next step can be carried out. Otherwise, each electrical device is controlled to stop working;

[0188] Then, the X-axis moving mechanism 2 and the Z-axis moving mechanism 4 are controlled to move so that the conveying roller 322 moves to the entrance of a battery pack receiving cavity of the charging station;

[0189] Then, the second driving device 52 is controlled to work, driving the hook mechanism 53 to push the battery pack 6 to roll on the conveying roller 322, and finally pushing the battery pack into the battery pack accommodating cavity of the charging station;

[0190] Then the Z-axis moving mechanism 4 is controlled to descend, and the positioning pin 538 is withdrawn from the positioning hole. Then the second driving device 52 is controlled to work, and the hook mechanism 53 is driven to withdraw along the Y-axis to grab the next battery pack.

[0191] During operation, when the second detection device 537 detects the first sensing sheet 536, a feedback signal is given to the control device, and the control device controls each driving device to stop working, indicating that an abnormality occurs in the second driving device 52 and waits for staff to handle it.

[0192] When the third detection device 5340 detects the second sensor sheet 5330, a feedback signal is given to the control device, and the control device controls each driving device to stop working, indicating that the positioning is abnormal and waiting for the staff to handle it.

[0193] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A battery pack transportation device, characterized in that: include: a first support frame; An X-axis moving mechanism drives the first support frame to move along the X-axis direction; A battery pack clamp comprises a support device, two clamps, a first drive device, and two alignment mechanisms; the support device is movably connected to the first support frame along the Z-axis direction; the two clamps are movably connected to the support device along the X-direction and are symmetrically arranged; the first drive device is fixedly connected to the support device and drives the two clamps to open or clamp synchronously; the alignment mechanisms are connected to the clamps one by one and are symmetrically arranged; Z-axis moving mechanism, driving the battery pack clamp to move along the Z-axis direction; The battery pack push-pull mechanism comprises a main frame, a second driving device, a hook mechanism and a transmission mechanism; the main frame is fixedly connected to the supporting device; the second driving device is fixedly connected to the main frame; the hook mechanism comprises a second supporting frame, a battery pack positioning module and a battery pack protection module; the second supporting frame is movably connected to the main frame along the Y-axis direction; the battery pack positioning module is connected to the second supporting frame; The battery pack protection module is connected to the second support frame; the transmission mechanism is respectively connected to the hook mechanism and the output end of the second driving device; The supporting device comprises: The third support frame; There are two first guide rails, which are fixedly connected to the third support frame and arranged along the X-axis direction; The first slider, there are four; in: Each of the clamping jaws is fixedly connected to the two first sliding blocks, and the two first sliding blocks are slidably connected to the two first guide rails in a one-to-one correspondence; The four first sliding blocks are arranged in a rectangular shape; The straightening mechanism comprises: A bottom plate fixedly connected to the clamping jaw; A second guide rail, fixedly connected to the base plate along the X-axis direction; a second sliding block, slidably connected to the second guide rail; A slider connecting plate, fixedly connected to the second slider; A push block, fixedly connected to the slider connecting plate; The third driving device is fixedly connected to the clamping jaw, and an output end of the third driving device is connected to the slider connecting plate.

2. A battery pack transport device as claimed in claim 1, characterized in that: Each of the clamping jaws comprises: A clamping jaw seat connected to an output end of the first driving device; There are several conveying rollers connected to the inner side of the clamping jaw seat and arranged in a row along the Y-axis direction, and the rotation axis is arranged along the X-axis direction; A guide wheel assembly connected to the clamping jaw seat and arranged in a row along the Y-axis direction, and located outside the conveying roller and higher than the conveying roller, and the rotation axis is arranged along the Z-axis; A first detection device, fixedly connected to the clamping jaw seat; Wherein, the first detection device is used to detect whether the battery pack is too high or tilted.

3. A battery pack transport device as claimed in claim 1, characterized in that: The battery pack clamp also includes: A battery pack information identification or reading device, fixedly connected to the supporting device, the clamping claw or the alignment mechanism; There are at least two limit protection members, which are fixedly connected to the clamping jaws in a one-to-one correspondence and arranged symmetrically; The blocking member is fixedly connected to the supporting device and is used to resist each of the position limiting protection members.

4. A battery pack transport device as claimed in claim 1, characterized in that: The battery pack push-pull mechanism also includes: A third guide rail, fixedly connected to the main frame along the Y-axis direction; A third sliding block is slidably connected to the third guide rail and fixedly connected to the second support frame; There are two limiters, which are fixedly connected to the main frame and located at two ends of the movement direction of the hook mechanism; in: The transmission mechanism comprises: There are two synchronous belt pulleys, one of which is fixedly connected to the output end of the second driving device; the other synchronous belt pulley is rotatably connected to the main frame; A synchronous belt, sleeved on the two synchronous pulleys; The synchronous belt clamp is fixedly connected to the hook mechanism and clamps the synchronous belt.

5. A battery pack transport device as claimed in claim 1, characterized in that: The battery pack protection module comprises: An overload protection component, movably connected to the second support frame and connected to the transmission mechanism; An overvoltage protection component, fixedly connected to the battery pack positioning module; Wherein, the battery pack positioning module is movably connected to the second support frame along the Z-axis direction.

6. A battery pack transport device as claimed in claim 5, characterized in that: The overload protection component comprises: A fixed block, provided with a groove and fixedly connected to the second support frame; An optical axis, fixedly connected to the fixing block and passing through the groove; A connecting member, slidably sleeved on the optical axis, located in the groove, and fixedly connected to the transmission mechanism; A first spring is sleeved on the optical axis, one end of which abuts against the inner wall of the groove, and the other end of which abuts against the connecting member, and the first spring is sleeved on both ends of the connecting member of the same optical axis; There are two first sensing sheets, each of which is fixedly connected to the connecting member; There are two second detection devices, which are respectively fixedly connected to the second support frame and are used to detect the first sensor sheet.

7. A battery pack transport device as claimed in claim 6, characterized in that: The battery pack positioning module includes two positioning pins; Each of the positioning pins comprises a conical positioning portion at the top, a limiting portion in the middle, and an optical axis portion at the bottom; The outer diameter of the limiting portion is greater than the outer diameter of the optical axis portion.

8. A battery pack transport device as claimed in claim 7, characterized in that: The overvoltage protection component comprises: Adapter; The second spring has two; The connecting plate is provided with two vertical stepped through holes; each of the vertical stepped through holes includes a large hole portion at the top and a small hole portion at the bottom; the diameter of the large hole portion is greater than the outer diameter of the second spring; the outer diameter of the optical axis portion is less than the diameter of the small hole portion, and is greater than the outer diameter of the second spring; the connecting plate is fixedly connected to the second support frame; A second sensing sheet, fixedly connected to the adapter; a third detection device, fixedly connected to the second support frame and used for detecting the second sensing sheet; in: The optical axis parts pass through the vertical stepped through holes one by one and are then fixedly connected to the adapter; The limiting portion is located in the large hole portion; The conical positioning portion protrudes from the top end of the connecting plate; The second springs are sleeved on the optical axis portion one by one and respectively abut against the bottom end of the limiting portion and the bottom surface of the large hole portion.

Images