Novel AGV (Automatic Guided Vehicle) for transporting books

Abstract

A novel AGV trolley for book transportation belongs to the field of logistics trolleys and comprises an AGV trolley body, a wireless remote control mechanism, a voltage regulator, a wireless receiving circuit and a supporting plate mechanism. The supporting plate mechanism comprises a motor speed reducing mechanism, a lead screw, a bearing seat, a supporting plate and an isolation plate, guide grooves are formed in one side of the isolation plate and the container, and the lower portion of the isolation plate is installed on the other side in the container. Guide blocks and internal thread seats are arranged on the two sides of the supporting plate, the guide blocks are located in guide grooves of the container and the partition plate, the bearing seat and the motor speed reducing mechanism are installed between the partition plate and the lower end and the upper end of the inner side of the container respectively, the lead screw and the internal thread seats of the supporting plate are connected together through threads, and the lower end of the lead screw is fixedly installed in bearing inner rings of the bearing seat. The upper end of the screw rod and the lower end of a rotating shaft of the motor reducing mechanism are mounted together; and the voltage regulator and the wireless receiving circuit are arranged in an electric control box of the AGV trolley body and are electrically connected with each other. The novel bookshelf brings convenience to workers to load and unload books, and the working efficiency is correspondingly improved.

Description

Technical Field

[0001] This utility model relates to the field of logistics vehicle equipment technology, and in particular to a new type of AGV vehicle for transporting books. Background Technology

[0002] Automated guided vehicles (AGVs), also known as automated guided transport vehicles, are a type of automated logistics vehicle. They typically use automatic or manual methods to load goods at designated locations, then automatically travel to a designated unloading point along a route set by their internal control system. (The control system simultaneously outputs power to the electric drive wheels on both sides of the AGV, causing it to move forward. Alternatively, one power output from the control system outputs power to the electric drive wheels on the left or right side of the AGV, causing it to turn right or left.) Finally, goods are unloaded automatically or manually, and then the AGV travels back to the loading area to load more goods. This process is repeated continuously to complete the automated goods transfer function. Specifically, AGVs are equipped with various sensors around their bodies that work in conjunction with the control system to ensure safe operation and adherence to the correct path.

[0003] With the advancement of industrial technology, ACV (Automatic Guided Vehicle) technology has also developed. For example, the authorized Chinese patent "201621211461.4" entitled "AGV Cart" describes that "the AGV provided by this utility model has RFID tags and reflective strips installed at the target stopping position along its travel path, and an RFID reader and laser sensor installed at the bottom of the AGV body. When the RFID reader detects the RFID tag, the AGV slows down; when the laser sensor detects the reflective strip, the AGV stops, thus achieving precise parking and positioning of the AGV." As can be seen above, although the patent achieves the described technical effects, like other technologies in the field, it still has the following problems. When used for transporting and transferring books, its cargo box is generally rectangular, with an open top and considerable depth, making it inconvenient for workers to load or unload books from the cargo box. Although the movable door installed at the rear of the cargo box facilitates loading and unloading books to some extent, the need for manual opening and closing of the door still causes inconvenience for staff and hinders work efficiency. Therefore, it is particularly necessary to provide an ACV trolley that facilitates the loading and unloading of books for staff. Utility Model Content

[0004] To overcome the shortcomings of existing AGVs used for book transportation due to structural limitations, as described in the background, this utility model provides a new type of AGV for book transportation. Based on the AGV itself, when the AGV arrives at the work area, workers can wirelessly control the raising or lowering of the pallet, thus facilitating the removal or gradual loading of books from the cargo box. This improves the convenience of loading and unloading books and correspondingly increases work efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A novel AGV (Automated Guided Vehicle) for transporting books includes an AGV body, a wireless remote control mechanism, a voltage regulator, a wireless receiving circuit, and a pallet mechanism. The pallet mechanism includes a motor reduction gear, a lead screw, a bearing housing, a pallet, and a partition plate. The partition plate and one side of the AGV body's cargo box each have guide grooves. The lower part of the partition plate is fixedly installed on the other side of the cargo box. Guide blocks are located on both sides of the pallet, and one end of the pallet has an internal threaded seat. The pallet is movably located within the cargo box, and the guide blocks on both sides are located within the guide grooves of the cargo box and the partition plate, respectively. A limit block is installed on the outer end of each guide block. The bearing housing is fixedly installed between the isolation plate and the lower inner side of the cargo box. The motor reduction gear is fixedly installed between the isolation plate and the upper inner side of the cargo box. The lead screw and the internal thread seat of the support plate are connected together by threads, and the lower end of the lead screw is fixedly installed in the inner ring of the bearing housing. The upper end of the lead screw and the lower end of the rotating shaft of the motor reduction gear are fixedly installed together. The voltage regulator and the wireless receiving circuit are installed in the electrical control box of the AGV body. The power output terminal of the wireless receiving circuit is electrically connected to the power input terminal of the motor reduction gear, and the power output terminal of the voltage regulator is electrically connected to the control power input terminal of the wireless receiving circuit.

[0007] Furthermore, the spacing between the partition plate and the inner side of the cargo box.

[0008] Furthermore, the outer diameter of the pallet is smaller than the inner diameter of the cargo box.

[0009] Furthermore, the width of the guide block is smaller than the width of the guide groove.

[0010] Furthermore, the width of the limiting block is greater than the width of the guide groove, and the limiting block is spaced apart from the outer ends of the partition plate and the cargo box.

[0011] Furthermore, the wireless receiving circuit includes a wireless receiving circuit module and relays connected by electrical lines. The positive power input terminals of the two relays are respectively connected to the two power output terminals of the wireless receiving circuit module, and the negative power input terminals of the two relays are connected to the negative power input terminal of the wireless receiving circuit module.

[0012] Furthermore, a magnet is fixedly installed on the front end of the limiting block of one of the pallets, and a reed switch is installed at the lower end between the cargo box and the partition. When the pallet moves to the lower stop point, the rear end of the reed switch is located at the front end of the magnet and is on the same plane. The magnetic force of the magnet acts on the reed switch, the internal contacts of the reed switch are open, and the two terminals of the reed switch are connected in series between the positive power input terminal of the first relay and the first positive power output terminal of the wireless receiving circuit module.

[0013] Compared with existing technologies, the advantages of this invention are as follows: Based on the AGV (Automated Guided Vehicle) trolley, when the AGV trolley arrives at the work area, the operator can wirelessly control the motor reduction device via a lead screw to raise or lower the pallet. This facilitates the operator in removing books from the cargo box or gradually placing them in. Furthermore, since the speed of the pallet's raising or lowering is adjustable, it provides convenience for loading and unloading books and correspondingly improves work efficiency. In summary, this invention has good application prospects. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 , 3 This is a partial structural schematic diagram of the present invention.

[0017] Figure 4 This is the circuit diagram of this utility model. Detailed Implementation

[0018] The guide blocks on the right side are located in the two guide grooves 102 on the left side of the cargo box 101 and at the front and rear ends of the isolation plate 34. A limiting block 35 is welded to the outer end of each guide block 331. The bearing seat 32 is bolted to the lower end between the isolation plate 34 and the right side of the cargo box 101. The motor reduction device M1 is bolted to the middle of the upper right side of the isolation plate 34 and the cargo box 101. The lead screw 31 and the internal thread seat 332 of the support plate are threaded together, and the lower end of the lead screw 31 is tightly fitted in the bearing inner ring of the bearing seat 32. The upper end of the lead screw 31 is welded to the lower end of the rotating shaft of the motor reduction device M1. The voltage regulator T3 and the wireless receiving circuit 2 are installed in the electrical control box of the AGV body 1.

[0019] Figure 1 , 2As shown in Figures 3 and 4, the partition plate 34 and the inner right side of the cargo box 101 are spaced a certain distance apart. The outer diameter of the pallet 33 is smaller than the inner diameter of the cargo box 101. The width of the guide block 331 is smaller than the width of the guide groove 102. The width of the limiting block 35 is greater than the width of the guide groove 102, and the limiting block 35 is spaced apart from the outer ends of the partition plate 34 and the cargo box 101. The pallet moves up or down along the guide groove 102 guided by the guide block, and the limiting block 35 limits the guide block. The wireless receiving circuit includes a wireless receiving circuit module T2 and relays J1 and J2 connected by circuit board wiring. The positive power input terminals of the two relays J1 and J2 are connected to the two power output terminals 3 and 4 of the wireless receiving circuit module T2, respectively, and the negative power input terminals of the two relays J1 and J2 are connected to the negative power input terminal 2 of the wireless receiving circuit module T2. A permanent magnet 333 is glued to the front end of the limiting block on the right rear side of the pallet 33. A reed switch GH is glued to the lower rear part of the inner side between the cargo box and the partition. When the pallet 33 moves to the lower stop point, the rear end of the reed switch GH is located 2 mm from the front end of the magnet 33 and is on the same plane. The magnetic force of the magnet 333 acts on the reed switch GH, and the internal contacts of the reed switch GH (with the moving contact located on the rear side) are open. The two terminals of the reed switch GH are connected in series between the positive power input terminal of the first relay J1 and pin 3 of the first positive power output terminal of the wireless receiving circuit module T1. The power input terminals 1 and 2 of the wireless receiver circuit module T2, the power input terminals 1 and 2 of the voltage regulator T3, and the battery G1 of the AGV trolley are connected by wires. The normally open contacts of the power output terminals of the wireless receiver circuit relays J1 and J2 and the positive and negative power input terminals of the motor reduction device M1 are connected by wires. The power output terminals 3 and 4 of the voltage regulator T3 and the control power input terminals of the relays J1 and J2 of the wireless receiver circuit are connected by wires.

[0020] Figure 1 , 2As shown in Figures 3 and 4, the power output from the battery G1 on the AGV body 1 enters the power input terminals of the wireless receiver circuit module T2 and the voltage regulator T3. The wireless receiver circuit module T2 and the voltage regulator T3 are powered on and work. The adjustable DC power output from pins 3 and 4 of the voltage regulator T3 (whose handle is located outside the opening at the front of the control box) enters the two control power input terminals of the relays J1 and J2. This novel AGV (Automated Guided Vehicle) is based on a AGV body 1. The AGV body 1 is manually loaded with goods at designated locations. Then, the AGV body 1 automatically travels to a designated unloading location according to a route set by its internal control system (both power outputs of the control system simultaneously supply power to the electric drive wheels on both sides of the AGV body, causing the AGV to move forward; one power output of the control system supplies power to the electric drive wheels on the left or right side of the AGV body, causing the AGV to turn right or left). Finally, the goods are unloaded manually, and then the AGV travels to the loading area to load more goods. This process is continuously repeated to complete the automatic transfer of goods. Specifically, the AGV is equipped with multiple sensors around its body to work in conjunction with the control system, ensuring driving safety and adherence to the correct path. The above-described AGV operation method is a mature existing technology and will not be elaborated upon in this application.

[0021] Figure 1 , 2As shown in Figures 3 and 4, when the AGV trolley 1 moves to the relevant work area to load books, the worker presses the first button D1 of the portable wireless remote control mechanism T1 (there are two sets of wireless remote control mechanisms, one for each of the workers in the book loading and unloading areas). The wireless remote control mechanism T1 then transmits the first wireless closed signal. The wireless receiving circuit module T2 receives this signal, and its pin 3 outputs a high level, which enters the positive power input terminal of relay J1. Relay J1 is energized and its control power input terminal and normally open contact terminal close. This, in turn, activates the positive and negative terminals of the motor reduction device M1. When the power input terminal is energized, its shaft rotates counterclockwise, driving the lead screw 31 to rotate. The external thread of the lead screw 31 acts on the internal thread seat 333 of the pallet, causing the pallet to gradually move downward from the upper end of the cargo box, thus lowering its height. As the height difference between the pallet and the lower end of the cargo box gradually increases, the height difference between the books and the pallet is relatively small when the staff loads books into the cargo box 101, making it convenient for the staff to load books (although the height of the pallet decreases later, the height of the books gradually increases, so the height difference between the upper end of the books and the upper end of the cargo box is always small when the staff loads books, making it convenient for the staff to load books into the cargo box). When the pallet moves to the bottom of the cargo box, the magnet CT and the reed switch GH approach each other, causing the internal contacts of the reed switch GH to open. This de-energizes the motor reducer M1, preventing it from operating uncontrollably. (Due to the obstructed view of the cargo box and books, it's difficult for staff to observe the pallet reaching its lower limit. Therefore, automatic control de-energizes the motor reducer M1 when the pallet moves to its lower limit, protecting it. Conversely, if the pallet and books move to their upper limit, staff can easily see them, allowing for convenient power-off via wireless remote control.) When the staff presses the first button D1 of the portable wireless remote control mechanism T1 again, T1 emits the first open-circuit signal. Upon receiving this signal, the wireless receiving circuit module T2 stops outputting a high-level signal from pin 3, which enters the positive power input terminal of relay J1. Relay J1 de-energizes, opening its control power input terminal and normally open contact. Consequently, the positive and negative power input terminals of motor reducer M1 are de-energized, and the pallet stops moving.

[0022] Figure 1 , 2As shown in Figures 3 and 4, when the AGV trolley 1 moves to the relevant work area to unload books, the worker presses the second button D2 of the portable wireless remote control mechanism T1. The wireless remote control mechanism T1 then emits a second wireless closed signal. The wireless receiving circuit module T2 receives this signal, and its pin 4 outputs a high level, which enters the positive power input terminal of relay J2. Relay J2 is energized, closing its control power input terminal and normally open contact. Consequently, the negative and positive power input terminals of the motor reduction device M1 are energized, causing its shaft to rotate clockwise, driving the lead screw 31 to rotate. The external thread acts on the internal thread seat 33 of the pallet, so the pallet gradually moves upward from the lower end of the cargo box, and its height increases (there are always books outside the upper end of the cargo box). In this way, since the height difference between the pallet and the lower end of the cargo box gradually increases, when the staff unloads the books from the cargo box 101, the height difference between the books and the pallet is relatively small, which makes it convenient for the staff to unload the books (although the height of the pallet increases later, it gradually decreases after the books are removed, so when the staff unloads the books, the height difference between the upper end of the books and the upper end of the cargo box is always small, and the staff can easily unload the books from the cargo box). When the pallet moves to the upper part of the cargo box, the worker presses the second button D2 of the portable wireless remote control mechanism T1 again. The wireless remote control mechanism T1 then emits a second open-circuit signal. Upon receiving this signal, the wireless receiving circuit module T2 stops outputting a high-level signal from pin 4, which then enters the positive power input terminal of relay J2. Relay J2 is de-energized and no longer engages, opening its control power input terminal and normally open contact terminal. Consequently, the negative and positive power input terminals of the motor reduction device M1 are de-energized, and the pallet stops moving, preparing for the next loading of books. Specifically, before operation, the worker adjusts the handle of the voltage regulator T3 to adjust the voltage output from pins 3 and 4 to the control power input terminals of relays J1 and J2. This change in voltage after the motor reduction device M1 is energized will cause the pallet to move up and down at a higher or slower speed, meeting the actual operating speed requirements. As described above, this new type of device can wirelessly control the motor reduction equipment to raise or lower the pallet via the lead screw. This makes it convenient for staff to take books out of the cargo box or gradually put them in. Since the speed of the pallet's raising or lowering height is adjustable, it brings convenience to the staff in loading and unloading books and improves work efficiency accordingly.

[0023] Figure 4In the diagram, the motor reduction device M1 is a 200W coaxial motor gear reducer; the reed switch GH is a normally closed contact glass-cased reed switch; the wireless remote control mechanism T1 and the wireless receiving circuit module T2 are hmzfz-k2 wireless transmitting and receiving circuit module components (working on the same principle as vehicle wireless remote control and receiving circuit module components); the relays J1 and J2 are DC12V; and the voltage regulator T3 is a 24V DC to 0-24V DC to DC power supply module.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0025] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel AGV (Automated Guided Vehicle) for transporting books, comprising an AGV body, a wireless remote control mechanism, and a voltage regulator, characterized in that, It also features a wireless receiving circuit and a pallet mechanism. The pallet mechanism includes a motor reduction gear, a lead screw, a bearing housing, a pallet, and an isolation plate. The isolation plate and the cargo box of the AGV trolley body each have guide grooves on one side. The lower part of the isolation plate is fixedly installed on the other side of the cargo box. The pallet has guide blocks on both sides and an internal threaded seat at one end. The pallet is movably located inside the cargo box, and the guide blocks on both sides are located in the guide grooves of the cargo box and the isolation plate, respectively. A limit block is installed on the outer end of each guide block. The bearing housing is fixedly installed on the lower inner side of the isolation plate and the cargo box. Between the partition plate and the upper inner side of the cargo box, the motor reduction gear is fixedly installed between the partition plate and the upper inner side of the cargo box. The internal threaded seat of the lead screw and the support plate are connected together by threads, and the lower end of the lead screw is fixedly installed in the inner ring of the bearing seat. The upper end of the lead screw and the lower end of the rotating shaft of the motor reduction gear are fixedly installed together. The voltage regulator and the wireless receiving circuit are installed in the electrical control box of the AGV body. The power output terminal of the wireless receiving circuit is electrically connected to the power input terminal of the motor reduction gear, and the power output terminal of the voltage regulator is electrically connected to the control power input terminal of the wireless receiving circuit.

2. The novel AGV for transporting books according to claim 1, characterized in that, The distance between the partition and the inside of the cargo box.

3. The novel AGV for transporting books according to claim 1, characterized in that, The outer diameter of the pallet is smaller than the inner diameter of the cargo box.

4. The novel AGV for transporting books according to claim 1, characterized in that, The width of the guide block is smaller than the width of the guide groove.

5. The novel AGV for transporting books according to claim 1, characterized in that, The width of the limiting block is greater than the width of the guide groove, and the distance between the limiting block and the outer ends of the partition plate and the cargo box is [not specified].

6. The novel AGV for transporting books according to claim 1, characterized in that, The wireless receiving circuit includes a wireless receiving circuit module and relays connected by electrical wires. The positive power input terminals of the two relays are connected to the two power output terminals of the wireless receiving circuit module, respectively, and the negative power input terminals of the two relays are connected to the negative power input terminal of the wireless receiving circuit module.

7. The novel AGV for transporting books according to claim 6, characterized in that, A magnet is fixedly installed on the front end of the limiting block of one of the pallets. A reed switch is installed at the lower end between the cargo box and the partition. When the pallet moves to the lower stop point, the rear end of the reed switch is located at the front end of the magnet and is on the same plane. The magnetic force of the magnet acts on the reed switch, and the internal contacts of the reed switch are open. The two terminals of the reed switch are connected in series between the positive power input terminal of the first relay and the first positive power output terminal of the wireless receiving circuit module.

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