Search

CN-121973733-A - High-precision automatic power change device and method for AGV

CN121973733ACN 121973733 ACN121973733 ACN 121973733ACN-121973733-A

Abstract

The invention discloses a high-precision automatic power supply changing device and method for an AGV, and belongs to the technical field of automatic AGV equipment. The device comprises a box body integrating a battery bin, a power changing bin and a charging bin, wherein a first conveying mechanism and a second conveying mechanism which are synchronously driven by a first driving device are arranged in the battery bin, a carrier and a second driving device are arranged below the conveying mechanism, a supporting mechanism is arranged on the carrier, a jacking mechanism is arranged at the bottom of the power changing bin, and a guide mechanism and a third driving device are arranged between the power changing bin and the charging bin. According to the battery replacement method, through the cooperative action of the mechanisms, the automatic disassembly, transfer, charging and accurate conveying and installation of the AGV battery pack are realized. The invention solves the technical problems of low replacement precision, poor battery transfer stability and unsmooth connection of a current replacement process of the traditional battery replacement device, realizes the impact-free stable transfer and high-precision positioning and power replacement of the battery pack, greatly improves the power replacement efficiency by the design of the integrated bin body, reduces the occupied space of equipment and meets the automatic power replacement requirements of various AGV vehicles.

Inventors

  • Si Zhizhen
  • WU YANG
  • XU MINGWEI
  • LIU JIAJUN
  • LIU ZEKAI

Assignees

  • 黄石久丰智能机电有限公司

Dates

Publication Date
20260505
Application Date
20260316

Claims (10)

  1. 1. Automatic power conversion device of high accuracy AGV, its characterized in that includes: The box body (1) is provided with a battery compartment (11) for storing full battery packs, a battery replacement compartment (13) for replacing AGV vehicle battery packs and a charging compartment (12) for charging replaced battery packs; the first conveying mechanism (2) and the second conveying mechanism (3) are arranged in the battery bin (11), and the battery pack is placed between the first conveying mechanism (2) and the second conveying mechanism (3); The first driving device (4) is used for synchronously driving the first conveying mechanism (2) and the second conveying mechanism (3) to obliquely release the battery pack; The carrier (5) is positioned below the first conveying mechanism (2) and the second conveying mechanism (3); the second driving device (6) is used for driving the carrier (5) to horizontally slide back and forth between the battery compartment (11) and the battery replacement compartment (13); the supporting mechanism (7) is used for receiving the released battery pack and slowly placing the battery pack on the carrier (5) when the carrier (5) moves towards the battery changing bin (13); the jacking mechanism (8) is positioned at the bottom of the battery replacing bin (13) and is used for lifting and replacing the battery pack; The guide mechanism (9) is erected between the battery replacing bin (13) and the charging bin (12) and is used for supporting the battery pack replaced by the jacking mechanism (8); and the third driving device (10) is used for pushing the battery pack on the guide mechanism (9) into the charging bin (12).
  2. 2. The automatic power changing device of the high-precision AGV according to claim 1, wherein the first conveying mechanism (2) and the second conveying mechanism (3) comprise a first guide roller (21) and a second guide roller (22), the first guide roller (21) and the second guide roller (22) are arranged in an up-down parallel mode, the first guide roller (21) and the second guide roller (22) are both rotationally connected to the box body (1), belt wheels (23) are fixed on the outer sides of two ends of the first guide roller (21) and the second guide roller (22), the upper belt wheel (23) and the lower belt wheel (23) are in transmission connection through a transmission belt (24), and clamping teeth (25) for limiting two sides of a battery pack are arranged on opposite sides of the transmission belt (24) on the first conveying mechanism (2) and the second conveying mechanism (3).
  3. 3. The high-precision automatic AGV power exchange device according to claim 2, wherein the first driving device (4) comprises a first motor (41), the first motor (41) is fixed on the outer side face of the box body (1), the output end of the first motor (41) is fixed on a first guide roller (21), a first chain wheel (42) is fixed on the first guide roller (21) of the first conveying mechanism (2), a second chain wheel (43) is fixed on the first guide roller (21) of the second conveying mechanism (3), and the first chain wheel (42) is in transmission connection with the second chain wheel (43) through a chain (44).
  4. 4. The high-precision automatic AGV power exchange device according to claim 1, wherein the carrier (5) comprises a tray (51), side plates (52) are fixed on two sides of the tray (51), sliding strips are fixed on the outer side faces of the side plates (52), sliding grooves which are in sliding fit with the sliding strips are formed in the inner side faces of the box body (1), movable grooves (53) used for the supporting mechanism (7) to rotate up and down and guide holes (54) used for the jacking mechanism (8) to lift battery packs on the carrier (5) are formed in the tray (51), rubber pads (55) are fixed on the upper surface of the tray (51), and first screw nuts (56) in transmission fit with the second driving device (6) are fixed on the middle of the bottom face of the tray (51).
  5. 5. The high-precision automatic AGV power exchanging device according to claim 4, wherein the second driving device (6) comprises a second motor (61), the second motor (61) is fixed on the outer side surface of the box body (1), a first transmission screw (62) rotationally connected with the box body (1) is fixed at the output end of the second motor (61), and the first transmission screw (62) is in threaded fit with the first screw nut (56).
  6. 6. The high-precision automatic AGV power exchange device according to claim 1, wherein the supporting mechanism (7) comprises a rotating shaft (71), two ends of the rotating shaft (71) are rotatably connected with a support (72) fixed on the bottom surface of the carrier (5), a V-shaped movable support (73) is fixed on the outer side of the rotating shaft (71), a first supporting plate (74) for being attached to the bottom surface of the battery pack is fixed at one end of the movable support (73), a second supporting plate (75) for being contacted with the right inclined end of the battery pack is fixed at the other end of the movable support (73), and a stop block (76) for resisting the battery pack is fixed on the upper surface of the second supporting plate (75); a torsion spring is clamped between the movable support (73) and the support (72), and the movable support (73) tends to rotate the first supporting plate (74) below the surface of the tray (51) under the action of the elasticity of the torsion spring.
  7. 7. The high-precision automatic AGV power exchanging device according to claim 4, wherein the jacking mechanism (8) comprises an electric telescopic rod (81), the electric telescopic rod (81) is fixed at the bottom of the power exchanging bin (13), a pushing disc (82) is fixed at the output end of the electric telescopic rod (81), jacking rods (83) distributed in a rectangular mode are fixed on the upper surface of the pushing disc (82), the jacking rods (83) are in vertical sliding fit with the box body (1), a rubber disc (84) for lifting a battery pack is fixed on the top surface of the jacking rods (83), and the rubber disc (84) can vertically penetrate through the guide hole (54).
  8. 8. The automatic power exchanging device of the high-precision AGV according to claim 1, wherein the guiding mechanism (9) comprises a wheel frame (91), the wheel frame (91) is fixed in the box body (1) and horizontally arranged along the length direction of the box body (1), and a plurality of evenly distributed rollers (92) are rotatably connected to the inner side of the wheel frame (91).
  9. 9. The high-precision automatic AGV power exchanging device according to claim 8, wherein the third driving device (10) comprises a third motor (101), the third motor (101) is fixed on the outer side face of the box body (1), a second transmission screw (102) rotationally connected with the box body (1) is fixed at the output end of the third motor (101), a push plate (103) is slidingly connected on the outer side of the wheel frame (91), and a second screw nut (104) in threaded fit with the second transmission screw (102) is fixed at the middle position of the push plate (103).
  10. 10. The automatic power exchanging method of the high-precision AGV according to claim 1, wherein the automatic power exchanging device of the high-precision AGV comprises the following steps: step one, an AGV vehicle runs to a power exchanging device and stops above a power exchanging bin (13); Step two, a jacking mechanism (8) lifts the battery pack unloaded by the AGV to a guide mechanism (9); thirdly, pushing the battery pack on the guide mechanism (9) into a charging bin (12) by a third driving device (10) for charging; step four, the first driving device (4) works to drive the first conveying mechanism (2) and the second conveying mechanism (3) to synchronously operate so as to lift the left side and lower the right side of the full-power battery pack, and then the battery pack is gradually released in an inclined way; step five, in the process of step four, the second driving device (6) synchronously works to drive the carrier (5) to move leftwards, and the supporting mechanism (7) on the carrier (5) is contacted with one end of the right side of the battery pack and gradually rotates to be attached to the bottom surface of the battery pack along with the movement of the carrier (5); Step six, after the first conveying mechanism (2) and the second conveying mechanism (3) completely release the battery pack, the second driving device (6) works to drive the carrier (5) to move to the right, the battery pack is slowly placed on the carrier (5) under the support of the supporting mechanism (7) and is sent to the appointed position of the power changing bin (13) by the carrier (5); And seventhly, the jacking mechanism (8) works again to lift the battery pack on the carrier (5) to the mounting position, so that the power change operation of the AGV is completed.

Description

High-precision automatic power change device and method for AGV Technical Field The invention belongs to the technical field of automatic AGV equipment, and particularly relates to a high-precision automatic AGV power exchanging device and a method thereof. Background In the prior art, related researches are carried out on an automatic power exchanging device of mobile transportation equipment, for example, publication number CN117584804A discloses a battery power exchanging device and a power exchanging method thereof, a frame is built through an upright post and a supporting frame, a left-right transposition cylinder, a front-back power exchanging cylinder and a guide wheel set are matched to realize the replacement and charging of a battery, and although continuous power exchanging without manual operation can be realized, the device is only suitable for a specific rail transportation trolley and has the following remarkable defects: Firstly, the battery replacement positioning accuracy is low, the position deviation easily occurs in the battery transferring process by means of the cooperation mode of pushing by the air cylinder and guiding by the guide wheel set, and the high accuracy requirement of the AGV vehicle on the battery pack installation cannot be met; Secondly, the battery transfer stability is poor, the device can pick up the battery through the baffle to realize the transfer, the impact is easy to be caused to the battery, and the device can only realize the linear transfer in the horizontal direction, so that the adaptability is poor; thirdly, the structure of the equipment is dispersed, the integrated battery storage, power conversion and charging bin body design is omitted, the occupied space of the equipment is large, the connection of the power conversion processes is not compact, and the power conversion efficiency is limited; Fourth, only can realize the alternate replacement and charging of single group battery, there is not a lot of battery storage and automatic conveying structure, can't adapt to AGV vehicle scale, high frequency's electricity demand that trades. Meanwhile, traditional AGV trades many adoption fixed point manual replacement or simple and easy arm and trades electric mode, and manual work trades electric inefficiency, recruitment cost are high, and simple and easy arm trades electric and exists that positioning error is big, the battery package transfers the impaired problem of easy rocking in-process, and lacks the automatic storage and the linkage structure that charges of battery package, is difficult to realize the full flow automation that AGV traded electric. In summary, the existing power exchanging device and method cannot meet the requirements of automatic power exchanging with high precision, high stability and high efficiency of the AGV, and development of a high-precision automatic power exchanging device suitable for the AGV is needed. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a high-precision automatic AGV power conversion device and a method thereof, which solve the technical problems of low power conversion precision, poor battery transfer stability, scattered equipment structure and low power conversion efficiency of the traditional power conversion device and realize the full-flow automation of no-impact stable transfer, high-precision positioning power conversion and power conversion-storage-charging of an AGV battery pack. The automatic battery pack replacement device comprises a box body, a first conveying mechanism, a second conveying mechanism, a first driving device, a carrier, a second driving device, a supporting mechanism, a jacking mechanism, a guide mechanism and a third driving device, wherein the box body is provided with a battery compartment for storing a full battery pack, a battery compartment for replacing the AGV vehicle battery pack, and a charging compartment for charging the replaced battery pack, the first conveying mechanism and the second conveying mechanism are arranged in the battery compartment, the battery pack is placed between the first conveying mechanism and the second conveying mechanism, the first driving device is used for synchronously driving the first conveying mechanism and the second conveying mechanism to obliquely release the battery pack, the carrier is located below the first conveying mechanism and the second conveying mechanism, the second driving device is used for driving the carrier to horizontally reciprocate between the battery compartment and the battery compartment, the supporting mechanism is used for supporting the released battery pack and slowly flatly placing the battery pack on the carrier when the carrier moves towards the battery compartment, the jacking mechanism is located at the bottom of the battery compartment for lifting the battery pack, the guide mechanism is arranged between the battery compartment and the battery pack replacement co