Heavy load RGV sub-mother car fork arm device

By designing a heavy-duty RGV mother-daughter fork arm device, which utilizes support rollers to actively rotate the roll material and combines electro-hydraulic actuators and geared motors to control the roll material angle, the problem of internal stress deformation caused by uneven cooling of the roll material in existing technologies has been solved, thereby improving the uniformity and stability of product quality.

CN224677742UActive Publication Date: 2026-08-25CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
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Patent Information

Application Number
CN202522284440.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-08-25
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

The existing RGV forklift structure cannot adjust the coil angle, resulting in uneven cooling, causing internal stress deformation, and affecting product quality.

Method used

Design a heavy-duty RGV mother-daughter fork arm device, which actively rotates the roll material through support rollers, controls the roll material angle adjustment by combining electro-hydraulic push rods and geared motors, and uses a laser rangefinder to detect the roll material position to achieve uniform heat dissipation around the roll material.

Benefits of technology

The angle of the roll material can be adjusted arbitrarily during the cooling process, avoiding internal stress deformation caused by uneven cooling and improving the uniformity and stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy load RGV child and mother car fork arm device, including right angle fork board, the recess is equipped with electro -hydraulic push rod in the middle part of right angle fork board vertical part, the fixed end of electro -hydraulic push rod installs on the child car body, the end of right angle fork board horizontal part is provided with two symmetrical support roller of setting, and one side of right angle fork board is equipped with the reduction motor of driving support roller rotation, and the output of reduction motor is connected with the axle of support roller. This heavy load RGV child and mother car fork arm device, through the function of the active rotation of support roller coiled material, can adjust the angle of coiled material in the cooling process at will, makes its whole body even heat dissipation, effectively avoids the internal stress deformation caused by uneven cooling, further improves the uniformity and stability of product quality, simple structure, convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of rail transport vehicle technology, specifically a heavy-duty RGV mother-daughter vehicle fork arm device. Background Technology

[0002] In the production process of aluminum sheet and strip processing plants, hot rolling and cold rolling processes are usually distributed across different workshops and areas, making the intra-plant logistics transfer of high-temperature aluminum coils a critical link. In recent years, with the country's strong promotion of intelligent manufacturing in the non-ferrous metals industry, intelligent logistics systems have become a core element of production line upgrades. Among them, Automated Guided Vehicles (RGVs) are gradually being applied to workshop logistics due to their strong controllability and fixed paths. Currently, a "mother car-daughter car" heavy-duty RGV design has emerged in the industry. By combining a mother car running on the main track with daughter cars that can run on both the mother car and the auxiliary track (the auxiliary track is designed to be perpendicular to the main track), a grid-like transportation network is formed, aiming to achieve automated placement of coils.

[0003] However, the existing fork arm structure of the trolley is a lifting right-angle plate structure, which can only move the roll material up and down and cannot adjust the angle of the roll material. As a result, when the roll material is cooled by the fan, it is always blown on one part of the roll material, which is prone to uneven heat dissipation and internal stress deformation, thereby reducing product quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a heavy-duty RGV mother-daughter fork arm device. Through the function of the support roller actively rotating the roll material, the angle of the roll material can be adjusted arbitrarily during the cooling process, so that the heat dissipation is uniform throughout the body. This effectively avoids internal stress deformation caused by uneven cooling, and further improves the uniformity and stability of product quality. The structure is simple and easy to use, and it can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty RGV mother-daughter fork arm device, including a right-angle fork plate, a groove is provided in the middle of the vertical part of the right-angle fork plate, an electro-hydraulic push rod is provided inside the groove, the fixed end of the electro-hydraulic push rod is installed on the daughter vehicle body, two symmetrically arranged support rollers are rotatably arranged at the end of the horizontal part of the right-angle fork plate, and a reduction motor for driving the support rollers to rotate is provided on one side of the right-angle fork plate, the output end of the reduction motor is connected to the shaft of the support rollers.

[0006] As a preferred embodiment of this utility model, a reinforcing plate is provided at the inner right angle of the right-angle fork plate.

[0007] As a preferred technical solution of this utility model, an installation plate is provided on the inclined surface of the reinforcing plate, and a laser rangefinder is provided on the installation plate. The position of the packing strap on the roll is determined by detecting the change in distance, so that the packing strap is located between the two support rollers.

[0008] As a preferred technical solution of this utility model, a track groove is provided on the side of the vertical part of the right-angle fork plate, and the right-angle fork plate is vertically slidably connected to the car body of the subcar through the track groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are: The heavy-duty RGV mother-daughter fork arm device of this utility model can adjust the angle of the roll material at will during the cooling process by actively rotating the roll material with the support roller, so that the roll material can be dissipated evenly all over the body. This effectively avoids internal stress deformation caused by uneven cooling, and further improves the uniformity and stability of product quality. The structure is simple and easy to use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention in use; Figure 3 for Figure 2 A cross-sectional structural diagram.

[0011] In the diagram: 1 Electro-hydraulic actuator, 2 Right-angle fork plate, 21 Track groove, 22 Reinforcing plate, 3 Support roller, 4 Gear motor, 5 Mounting plate, 6 Laser rangefinder. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-3 This utility model provides a technical solution: a heavy-duty RGV mother-daughter fork arm device, including a right-angle fork plate 2, a groove is provided in the middle of the vertical part of the right-angle fork plate 2, an electro-hydraulic push rod 1 is provided inside the groove, the fixed end of the electro-hydraulic push rod 1 is installed on the daughter car body, two symmetrically arranged support rollers 3 are rotatably arranged at the end of the horizontal part of the right-angle fork plate 2, and a reduction motor 4 is provided on one side of the right-angle fork plate 2 to drive the support rollers 3 to rotate. The output end of the reduction motor 4 is connected to the shaft of the support rollers 3, and the reduction motor 4 drives the support rollers 3 to rotate, thereby controlling the rotation of the roll material by a certain angle.

[0014] Furthermore, a reinforcing plate 22 is provided at the inner right angle of the right-angle fork plate 2 to improve the stability of the right-angle fork plate 2.

[0015] Furthermore, an mounting plate 5 is provided on the inclined surface of the reinforcing plate 22, and a laser rangefinder 6 is provided on the mounting plate 5. The position of the packing strap on the roll is determined by detecting changes in distance, so that the packing strap is located between the two support rollers 3.

[0016] Furthermore, a track groove 21 is provided on the side of the vertical part of the right-angle fork plate 2. The right-angle fork plate 2 is vertically slidably connected to the car body through the track groove 21, which facilitates the guidance of the right-angle fork plate 2.

[0017] The electro-hydraulic actuator 1, the geared motor 4, and the laser rangefinder 6 used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are well-known technologies and will not be described in detail here.

[0018] When using: During the movement of the trolley, the laser rangefinder 6 measures the distance to detect the position of the packing strap on the roll material. When the trolley moves, the packing strap is located between the two support rollers 3. Then, the electro-hydraulic actuator 1 is extended, pushing the right-angle fork plate 2 upward. The right-angle fork plate 2 drives the support roller 3 upward, and the support roller 3 drives the roll material upward. Then, the geared motor 4 is controlled to work, driving the support roller 3 to rotate, thereby controlling the roll material to rotate at a certain angle. Finally, the electro-hydraulic actuator 1 is reset, allowing the adjusted roll material to fall back onto the placement rack. Its uniform heat dissipation effectively avoids internal stress deformation caused by uneven cooling.

[0019] This invention utilizes the function of the support roller 3 to actively rotate the roll material, allowing the angle of the roll material to be adjusted arbitrarily during the cooling process, ensuring uniform heat dissipation throughout the roll material. This effectively avoids internal stress deformation caused by uneven cooling, further improving the uniformity and stability of product quality. The structure is simple and easy to use.

[0020] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty RGV mother-daughter fork arm device, comprising a right-angle fork plate (2), characterized in that: The vertical part of the right-angle fork plate (2) has a groove in the middle, and an electro-hydraulic push rod (1) is provided inside the groove. The fixed end of the electro-hydraulic push rod (1) is installed on the car body. The horizontal part of the right-angle fork plate (2) is rotatably provided with two symmetrically arranged support rollers (3). A reduction motor (4) for driving the support rollers (3) to rotate is provided on one side of the right-angle fork plate (2). The output end of the reduction motor (4) is connected to the shaft of the support rollers (3).

2. The heavy-duty RGV mother-daughter forklift device according to claim 1, characterized in that: The right-angle fork plate (2) is provided with a reinforcing plate (22) at the inner right angle.

3. The heavy-duty RGV mother-daughter forklift device according to claim 2, characterized in that: The inclined surface of the reinforcing plate (22) is provided with an installation plate (5), and the installation plate (5) is provided with a laser rangefinder (6). The position of the packing strap on the roll is determined by detecting the change in distance, so that the packing strap is located between the two support rollers (3).

4. The heavy-duty RGV mother-daughter forklift device according to claim 1, characterized in that: The right-angle fork plate (2) has a track groove (21) on the side of the vertical part, and the right-angle fork plate (2) is vertically slidably connected to the car body through the track groove (21).