A load platform and AGV transfer device

Abstract

The utility model discloses a kind of load platform and AGV transfer device, including support frame, rotary table, motor speed reducer and arc bracket, rotary table is rotatably installed on support frame, the below of rotary table is provided with gear ring, motor speed reducer is installed on support frame, the output shaft of motor speed reducer is installed with first gear, first gear is engaged with gear ring, arc bracket is symmetrically installed at the top of rotary table;The lower side of rotary table is preset with a plurality of positioning plate along circumference, support frame is equipped with proximity switch corresponding positioning plate. The preset rotation angle of rotary table is detected by proximity switch, while meeting the horizontal transfer of heavy spare part, the angle of heavy spare part can also be adjusted according to the space inside waterwheel room, the accurate load transfer of heavy spare part is realized.

Description

Technical Field

[0001] This utility model relates to the field of hydropower station maintenance technology, and in particular to a load platform and an AGV transfer device. Background Technology

[0002] The waterwheel room of a hydroelectric power station is responsible for the installation, maintenance, and repair of key large-scale equipment such as propulsion coolers, high-pressure oil pumps, main and auxiliary crank arms, and water guide bearings. These devices are large and heavy (typically several to tens of tons), and the interior space of the waterwheel room is cramped with numerous pipes, supports, and other obstacles. Traditional methods of transporting these large devices mainly rely on manual labor combined with semi-mechanized tools or fixed overhead cranes, which presents the following prominent problems: Although traditional AGVs can achieve automated planar movement, they lack lifting and rotation functions, making it difficult to adapt to the handling and transport of equipment in confined spaces with complex obstacles, such as waterwheel rooms and workshops. During transport, the equipment is prone to collisions and slippage due to shifting center of gravity and uneven force, posing a threat to the safety of operators. While forklifts or overhead cranes have some lifting capabilities, their poor maneuverability and large turning radius make them unable to operate flexibly in confined indoor environments. Furthermore, their limited functionality prevents precise angle adjustments of workpieces, requiring multiple manual positioning and adjustments during equipment transport, with each transport taking several hours or even longer. The disassembly and assembly process requires frequent changes of tooling, resulting in extremely high labor intensity for operators.

[0003] Therefore, there is an urgent need to develop a multi-functional transfer equipment that is suitable for confined spaces such as waterwheel rooms, and integrates high load capacity, precise lifting, and planar rotation functions, in order to improve the automation level of disassembly, assembly, and transfer of key equipment, reduce the risks and labor intensity of manual operations, and ensure the long-term stable operation of the power plant. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a load platform and an AGV transfer device. By setting a lifting load mechanism on the AGV base and installing a load platform on the lifting load mechanism, and setting several positioning plates along the circumferential direction on the lower side of the rotating table of the load platform, the preset rotation angle of the rotating table is detected by a proximity switch. While satisfying the horizontal transfer of heavy parts, the angle of heavy parts can also be adjusted according to the space inside the water truck, thus realizing the precise load transfer of heavy parts.

[0005] To achieve the above objectives, this application provides a load platform, including a support frame, a rotary table, a motor reducer, and an arc-shaped bracket. The rotary table is rotatably mounted on the support frame, and a gear ring is provided below the rotary table. The motor reducer is mounted on the support frame, and a first gear is installed on the output shaft of the motor reducer. The first gear meshes with the gear ring. The arc-shaped bracket is symmetrically mounted on the top of the rotary table. Several positioning plates are installed along the circumferential direction at a preset angle on the lower side of the rotary table, and proximity switches are installed on the support frame corresponding to the positioning plates.

[0006] The top of the support frame is fixedly installed with an inner bearing ring, and an outer bearing ring is rotatably installed on the outside of the inner bearing ring via balls or cylindrical rollers. The top of the outer bearing ring is installed with the rotary table, and the gear ring is fixedly mounted on the outer bearing ring.

[0007] Several positioning plates are provided circumferentially on the lower side of the outer ring of the bearing, or on the lower side of the rotary table.

[0008] The arc-shaped bracket is also provided with protruding plates on both sides, and the protruding plates are provided with elongated holes.

[0009] An AGV transfer device includes an AGV body, a lifting load mechanism mounted on the top of the AGV body, and a load platform mounted on the top of the lifting load mechanism.

[0010] The lifting load mechanism adopts a scissor lift mechanism.

[0011] The AGV vehicle body is also equipped with a main support frame located on the outside of the lifting load mechanism.

[0012] A storage battery is also installed on the outside of the main support frame.

[0013] The AGV body includes a base bracket and omnidirectional wheels. The four omnidirectional wheels are respectively installed at the four corners of the lower side of the base bracket. Each omnidirectional wheel includes a steering wheel seat, a wheel, a travel traction motor, and a steering mechanism. The steering wheel seat is installed on the base bracket through the steering mechanism. The wheel is rotatably installed in the steering wheel seat. The travel traction motor is installed on one side of the steering wheel seat. The output shaft of the travel traction motor is connected to the wheel to drive the wheel to rotate.

[0014] The steering mechanism includes a mounting plate, a fixed gear, a steering gear, and a steering reduction motor. The mounting plate is fixedly mounted on the top of the steering wheel seat, the fixed gear is rotatably mounted on the top of the mounting plate, the fixed gear is fixedly mounted on the bottom of the base bracket, the steering reduction motor is mounted on the mounting plate, and the steering gear is mounted on the output shaft of the steering reduction motor. The steering gear meshes with the fixed gear for transmission.

[0015] Compared with the prior art, the above-conceptual technical solution conceived in this application has the following beneficial effects: This utility model features an arc-shaped bracket for holding a cooler. A motor reducer drives a first gear to rotate, which in turn drives a gear ring to rotate. Since the gear ring is fixedly connected to the rotary table, the rotation of the gear ring drives the rotary table to rotate, thereby adjusting the angle of the cooler during transport. Several positioning plates are pre-set circumferentially along the lower side of the rotary table. The positions of the positioning plates are set according to the angle that needs to be avoided when entering the waterwheel chamber. After entering the waterwheel chamber, when the angle of the cooler needs to be adjusted, the motor reducer is started, and a proximity switch detects the position of the positioning plates. When the first positioning plate is detected, the motor reducer stops, and the cooler swings an angle. When it reaches the next position, the motor reducer is started again, and when the proximity switch detects the next positioning plate, the motor reducer stops, and the cooler swings another angle. By detecting the preset rotation angle of the rotary table through a proximity switch, the angle of heavy components can be adjusted according to the space inside the waterwheel chamber, achieving precise transport of heavy components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the load platform in this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the load platform in this utility model.

[0019] Figure 3 This is a diagram showing the usage status of the AGV transfer device in this utility model.

[0020] Figure 4 This is a schematic diagram of the scissor lift mechanism used in the lifting load mechanism of the AGV transfer device of this utility model.

[0021] Figure 5 This is a schematic diagram of the omnidirectional wheel in the AGV transfer device of this utility model.

[0022] Figure Labels AGV body 1, base bracket 101, steering wheel seat 102, wheel 103, walking traction motor 104, mounting plate 105, fixed gear 106, steering gear 107, steering reduction motor 108. Lifting load mechanism 2, bearing inner ring 207, bearing outer ring 208, gear ring 209, motor reducer 210, support frame 211, rotary table 212, arc bracket 214, first gear 215, positioning plate 216, proximity switch 217, extension plate 218. 3. Main support frame, 4. Battery, 5. Cooler. Detailed Implementation

[0023] To more clearly illustrate the purpose, technical solution, and beneficial effects of this application, a further detailed description of this application is provided below in conjunction with illustrations and specific embodiments. It should be specifically noted that the specific embodiments described below are only for illustrating the technical content of this application and do not constitute a limitation on the scope of protection of this application.

[0024] Regarding the explanation of terminology: In this application, "and / or" is used to describe the relationship between related objects, covering three possible situations: taking "A and / or B" as an example, it can indicate the situation where only A exists, A and B exist simultaneously, or only B exists; the symbol " / " indicates the "or" relationship between related objects, such as "A / B" which refers to A or B.

[0025] Regarding the description of the embodiments: The terms "exemplary" and "for example" appearing in this application are only used to illustrate the technical solutions through specific examples. It should be particularly emphasized that any implementation method or design scheme marked as "exemplary" or "for example" should not be construed as having an advantage over other solutions. Such expressions are only used to present the technical concepts more intuitively.

[0026] Example 1: See Figure 1 , 2 This embodiment provides a load platform, including a support frame 211, a rotary table 212, a motor reducer 210, and an arc-shaped bracket 214. The rotary table 212 is rotatably mounted on the support frame 211. A gear ring 209 is provided below the rotary table 212. The motor reducer 210 is mounted on the support frame 211. A first gear 215 is mounted on the output shaft of the motor reducer 210. The first gear 215 meshes with the gear ring 209. The arc-shaped bracket 214 is symmetrically mounted on the top of the rotary table 212. Several positioning plates 216 are installed along the circumferential direction at a preset angle on the lower side of the rotary table 212. A proximity switch 217 is installed on the support frame 211 corresponding to the positioning plates 216.

[0027] Combination Figure 3The arc-shaped bracket 214 is used to place the cooler 5. The motor reducer 210 drives the first gear 215 to rotate, thereby driving the gear ring 209 to rotate. Since the gear ring 209 is fixedly connected to the rotary table 212, when the gear ring 209 rotates, it will drive the rotary table 212 to rotate, thereby adjusting the angle of the cooler 5 during transportation. The lower side of the rotary table 212 is pre-set with several positioning plates 216 along its circumference. The positions of the positioning plates 216 are set according to the angle that needs to be avoided when entering the waterwheel chamber. After entering the waterwheel chamber, when it is necessary to adjust the angle of the cooler 5, the motor reducer 210 is started, and the proximity switch 217 detects the position of the positioning plates 216. When the first positioning plate 216 is detected, the motor reducer 210 stops, and the cooler 5 swings by one angle. When it reaches the next position, the motor reducer 210 is started again, and when the proximity switch 217 detects the next positioning plate 216, the motor reducer 210 stops, and the cooler 5 swings by another angle. For example, the angle between the initial position and the first positioning plate 216 is 6 degrees, and the angle between the first positioning plate 216 and the second positioning plate 216 is 8 degrees. By detecting the preset rotation angle of the rotary table 212 through the proximity switch 217, the angle of heavy components can be adjusted according to the space inside the waterwheel chamber, realizing the precise transfer of heavy components.

[0028] In practical use, the motor reducer 210 is electrically connected to the power supply via a contactor, the contactor is electrically connected to the output terminal of the PLC via a relay, and the proximity switch 217 is electrically connected to the input terminal of the PLC. The proximity switch 217 is a magnetic proximity switch. The motor reducer 210 can be a worm gear motor reducer.

[0029] See Figure 2 The inner ring 207 of the bearing is fixedly installed on the top of the support frame 211. The outer ring 208 of the bearing is rotatably installed on the outside of the inner ring 207 by ball bearings or cylindrical rollers. The top of the outer ring 208 of the bearing is mounted on a rotary table 212. The gear ring 209 is fixedly mounted on the outer ring 208 of the bearing.

[0030] Specifically, in one of the schemes, see Figure 2 Several positioning plates 216 are fixedly installed circumferentially on the lower side of the outer ring 208 of the bearing.

[0031] In another embodiment, several positioning plates 216 are fixedly installed circumferentially on the lower side of the rotary table 212. When this embodiment is adopted, the positioning plates 216 should be located outside the first gear 215 so that the positioning plates 216 do not interfere with the first gear 215.

[0032] See Figure 3The arc-shaped bracket 214 is also provided with protruding plates 218 on both sides, and the protruding plates 218 are provided with elongated holes. This is so that the cooler 5 can be fixed to the arc-shaped bracket 214 by tightening straps or binding straps to prevent the cooler 5 from slipping off the arc-shaped bracket 214.

[0033] Example 2: See Figure 3 , 4 This embodiment provides an AGV transfer device, including an AGV body 1, a lifting load mechanism 2 installed on the top of the AGV body 1, and a load platform installed on the top of the lifting load mechanism 2.

[0034] In this embodiment, the lifting load mechanism 2 adopts a scissor lift mechanism. The scissor lift mechanism adopts existing technology, such as an AGV lifting mechanism disclosed in CN216336432U. When applied to this application, the base is installed on the AGV body 1, and the rotary table 212 is rotatably installed on the top plate.

[0035] See Figure 1 The AGV body 1 is also equipped with a main support frame 3 located outside the lifting load mechanism 2. This provides protection for the lifting load mechanism 2. When the lifting load mechanism 2 descends and retracts, it is positioned on the main support frame 3. This also provides a mounting base for the battery 4.

[0036] Furthermore, a storage battery 4 is also installed on the outside of the main support 3, which is used to power the electrical components.

[0037] See Figure 4 , 5 The AGV body 1 includes a base bracket 101 and four omnidirectional wheels, which are respectively installed at the four corners of the lower side of the base bracket 101. Each omnidirectional wheel includes a steering wheel seat 102, a wheel 103, a travel traction motor 104, and a steering mechanism. The steering wheel seat 102 is mounted on the base bracket 101 via the steering mechanism. The wheel 103 is rotatably mounted in the steering wheel seat 102. The travel traction motor 104 is mounted on one side of the steering wheel seat 102. The output shaft of the travel traction motor 104 is connected to one end of the central shaft of the wheel 103 via a spline joint to drive the wheel 103 to rotate. When the output shaft of the travel traction motor 104 rotates, it drives the wheel 103 to rotate, thereby driving the AGV body 1 to move on the ground.

[0038] See Figure 5The steering mechanism includes a mounting plate 105, a fixed gear 106, a steering gear 107, and a steering reduction motor 108. The mounting plate 105 is fixedly mounted on the top of the steering wheel seat 102. The fixed gear 106 is rotatably mounted on the top of the mounting plate 105 and fixedly mounted on the bottom of the base bracket 101. The steering reduction motor 108 is mounted on the mounting plate 105, and the steering gear 107 is mounted on the output shaft of the steering reduction motor 108. The steering gear 107 meshes with the fixed gear 106 for transmission. When the output shaft of the steering reduction motor 108 rotates, it drives the steering gear 107 to rotate. Since the fixed gear 106 is fixed, the mounting plate 105 will rotate, thereby turning the AGV body 1.

[0039] Specifically, a central shaft is provided at the top center of the mounting plate 105. The central shaft is connected to the central hole of the fixed gear 106 through a bearing. The fixed gear 106 is installed at the bottom of the base bracket 101 by bolts.

[0040] The working principle or process of this utility model: When in use, when the output shaft of the walking traction motor 104 rotates, it drives the wheels 103 to rotate, thereby driving the AGV body 1 to move on the ground.

[0041] When the steering reduction motor 108 in the four omnidirectional wheels at the bottom of the AGV body 1 drives the mounting plate 105 to rotate in coordination, the AGV body 1 will turn.

[0042] Upon entering the waterwheel chamber, when adjusting the angle of the cooler 5, the motor reducer 210 is activated. The proximity switch 217 detects the position of the positioning plate 216. When the first positioning plate 216 is detected, the motor reducer 210 stops, and the cooler 5 swings one angle. When it reaches the next position, the motor reducer 210 is activated again. When the proximity switch 217 detects the next positioning plate 216, the motor reducer 210 stops, and the cooler 5 swings another angle. By detecting the preset rotation angle of the rotary table 212 through the proximity switch 217, the angle of heavy components can be adjusted according to the space inside the waterwheel chamber, achieving precise transfer of heavy components.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A load platform, characterized in that: The system includes a support frame (211), a rotating platform (212), a motor reducer (210), and an arc-shaped bracket (214). The rotating platform (212) is rotatably mounted on the support frame (211). A gear ring (209) is provided below the rotating platform (212). The motor reducer (210) is mounted on the support frame (211). A first gear (215) is installed on the output shaft of the motor reducer (210). The first gear (215) meshes with the gear ring (209). The arc-shaped bracket (214) is symmetrically mounted on the top of the rotating platform (212). Several positioning plates (216) are installed along the circumferential direction at a preset angle on the lower side of the rotating platform (212). A proximity switch (217) is installed on the support frame (211) corresponding to the positioning plates (216).

2. The load platform according to claim 1, characterized in that: The support frame (211) is fixedly mounted with an inner bearing ring (207) on top. An outer bearing ring (208) is rotatably mounted on the outer side of the inner bearing ring (207) via balls or cylindrical rollers. The rotating platform (212) is mounted on the top of the outer bearing ring (208). The gear ring (209) is fitted and fixed on the outer bearing ring (208).

3. A load platform according to claim 2, characterized in that: Several positioning plates (216) are provided circumferentially on the lower side of the outer ring (208) of the bearing or on the lower side of the rotary table (212).

4. A load platform according to claim 1, characterized in that: The arc-shaped bracket (214) is also provided with protruding plates (218) on both sides, and the protruding plates (218) are provided with elongated holes.

5. An AGV transfer device, comprising an AGV body (1), wherein a lifting load mechanism (2) is mounted on the top of the AGV body (1), characterized in that: The top of the lifting load mechanism (2) is equipped with a load platform as described in any one of claims 1 to 4.

6. An AGV transfer device according to claim 5, characterized in that: The lifting load mechanism (2) adopts a scissor lift mechanism.

7. An AGV transfer device according to claim 5, characterized in that: The AGV body (1) is also equipped with a main support (3) located on the outside of the lifting load mechanism (2).

8. An AGV transfer device according to claim 7, characterized in that: A battery (4) is also installed on the outside of the main support (3).

9. An AGV transfer device according to claim 5, characterized in that: The AGV body (1) includes a base bracket (101) and four omnidirectional wheels, which are respectively installed at the four corners of the base bracket (101) on the lower side. The omnidirectional wheels include a steering wheel seat (102), a wheel (103), a travel traction motor (104), and a steering mechanism. The steering wheel seat (102) is installed on the base bracket (101) through the steering mechanism. The wheel (103) is rotatably installed in the steering wheel seat (102). The travel traction motor (104) is installed on one side of the steering wheel seat (102). The output shaft of the travel traction motor (104) is connected to the wheel (103) to drive the wheel (103) to rotate.

10. An AGV transfer device according to claim 9, characterized in that: The steering mechanism includes a mounting plate (105), a fixed gear (106), a steering gear (107), and a steering reduction motor (108). The mounting plate (105) is fixedly mounted on the top of the steering wheel seat (102). The fixed gear (106) is rotatably mounted on the top of the mounting plate (105) and fixedly mounted on the bottom of the base bracket (101). The steering reduction motor (108) is mounted on the mounting plate (105). The steering gear (107) is mounted on the output shaft of the steering reduction motor (108). The steering gear (107) meshes with the fixed gear (106) for transmission.

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