Double-cylinder wireless remote control grab bucket structure

Abstract

The invention relates to the technical field of grab buckets, in particular to a double-cylinder wireless remote control grab bucket structure which comprises a pair of oil cylinders, an upper bearing beam, a lower bearing beam mechanism, a left grab bucket and a right grab bucket, the oil cylinders are arranged between the upper bearing beam and the lower bearing beam mechanism, and the output ends of the oil cylinders are connected with the lower bearing beam mechanism; a wireless communication module is arranged in the upper bearing beam, an instruction is received through wireless communication and state data is fed back, a pair of reinforcing plates is arranged on the inner sides of the left grab bucket and the right grab bucket, the reinforcing plates are in a bow shape, and the hinge shaft penetrates through the upper ends of the reinforcing plates and is fixedly connected with the reinforcing plates; hinge seats are arranged at the two ends of the left grab bucket and the right grab bucket, supporting rods are connected to the upper sides of the hinge seats in a hinged mode, and the upper ends of the supporting rods are connected with the upper bearing beam in a hinged mode. According to the grab bucket self-locking device, the opening or closing state of the grab buckets is stably controlled, stable self-locking of the grab buckets is achieved when power fails, and the overall operation safety performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grab bucket, in particular to a double-cylinder wireless remote control grab bucket structure. BACKGROUND

[0002] The double-cylinder wireless remote control grab bucket is a high-efficiency and intelligent bulk cargo handling equipment, which is specially designed for single-hook cranes and is widely used in ports, ships, mines and other scenes to handle bulk materials such as coal, mineral powder, sandstone and grain.

[0003] The existing double-cylinder grab bucket technology can automatically open and close the grab bucket at any position in the air through wireless remote control signals, without the need to unload on the ground, thereby significantly improving the loading and unloading efficiency. The core component is to drive the grab bucket to open and close by using two hydraulic cylinders. The cylinder body is fixed to the lower support beam, the piston rod is connected to the upper support beam, and the action control is realized through the hydraulic mechanism. However, one or both of the cylinders may fail during long-term operation, which may cause the grab bucket to fail to close completely and fail to grab the material. This may cause the material to fall during transfer, and even cause safety hazards such as high-altitude falling objects.

[0004] Therefore, it is necessary to provide a double-cylinder wireless remote control grab bucket structure with high safety performance. SUMMARY

[0005] The present application aims to provide a double-cylinder wireless remote control grab bucket structure to solve the problems in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a double-cylinder wireless remote control grab bucket structure, comprising a pair of oil cylinders, an upper support beam, a lower support beam mechanism and left and right grab buckets,

[0007] A pair of hinge shafts for controlling the hinge connection of the left and right grab buckets are arranged through the lower support beam mechanism, and a locking mechanism for limiting the rotation of the hinge shafts is arranged on the inner side of the lower support beam mechanism.

[0008] A pair of oil cylinders are arranged between the upper support beam and the lower support beam mechanism, and the output ends thereof are connected to the lower support beam mechanism.

[0009] A wireless communication module is arranged in the upper support beam to receive instructions and feedback state data through wireless communication.

[0010] In one embodiment, a pair of reinforcing plates are arranged on the inner side of the left and right grab buckets, the reinforcing plates are in the shape of a Chinese character 'G', the hinge shafts pass through the upper ends of the reinforcing plates and are fixedly connected thereto.

[0011] Hinge seats are arranged at the two ends of the left and right grab buckets, support rods are hinge-connected to the upper sides of the hinge seats, and the upper ends of the support rods are hinge-connected to the upper support beam.

[0012] In one embodiment, the upper side of the reinforcing plate is penetrated and fixedly connected with a reinforcing rod, and the two ends of the reinforcing rod are fixedly connected with the two ends of the left and right grab buckets.

[0013] In one embodiment, the upper end of the reinforcing plate is fixedly connected with a sector gear, and the two side sector gears are engaged with each other.

[0014] In one embodiment, the locking mechanism comprises a pair of clamping blocks, the inside of the lower beam mechanism is provided with an adaptive cavity, the middle side of the hinge shaft is fixedly connected with a clamping roller, one side of the clamping roller is provided with a clamping groove, and the clamping groove is adapted to the clamping block.

[0015] In one embodiment, the lower end of the clamping block is fixedly connected with a clamping plate, and the output end of the oil cylinder is connected with the clamping plate.

[0016] In one embodiment, the output end of the oil cylinder is penetrated and fixedly connected with a limiting plate, and the upper side of the lower beam mechanism is provided with a limiting groove, and a spring piece is arranged between the limiting groove and the limiting plate.

[0017] Compared with the prior art, the present application has the following beneficial effects: the present application controls the output end to extend through a pair of oil cylinders, thereby pushing the lower beam mechanism to move downward, so that the two ends of the left and right grab buckets are limited by the supporting rod and cannot be lowered, and therefore, under the pushing action of the lower beam mechanism, the left and right grab buckets are slowly unfolded through the hinge connection of the pair of hinge shafts. In order to improve the stability of the closed left and right grab buckets and avoid the risk of oil cylinder control failure during material transfer, a locking mechanism is arranged in the lower beam mechanism, and when the left and right grab buckets are relatively unfolded, the hinge shafts at the upper end thereof are rotated relative to the lower beam mechanism. Therefore, the locking mechanism is arranged to lock the pair of hinge shafts during the process of grabbing and transferring materials, so as to limit the rotation of the hinge shafts, so that the left and right grab buckets cannot be unfolded, and the stable closure of the left and right grab buckets is achieved. Even if the driving control of the oil cylinder is lost, the left and right grab buckets cannot be unfolded automatically without external force, thereby ensuring the safety and stability of material transfer. BRIEF DESCRIPTION OF DRAWINGS

[0018] The technical scheme and other beneficial effects of the present application will be apparent from the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0019] In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the overall structure of the present application;

[0022] Figure 3 is a schematic diagram of the overall structure of the present application;

[0023] Figure 4 is a schematic view of a side section of the present application;

[0024] Figure 5 is a schematic view of a section of the present application of the lower beam mechanism;

[0025] In the figure: 1, lower beam mechanism; 101, hinge shaft; 102, clamping roller; 103, clamping block; 105, clamping plate; 106, limiting plate; 2, left and right grab bucket; 201, reinforcing plate; 202, hinge seat; 203, reinforcing rod; 204, sector gear; 5, support rod; 6, oil cylinder; 7, upper beam. DETAILED DESCRIPTION

[0026] The disclosure below provides many different embodiments or examples for implementing different structures of the application. For the purpose of simplicity, the elements and settings of the particular examples below are described. Of course, they are merely examples and are not intended to limit the application. Furthermore, the application can be used in different examples without departing from the scope of the application. The repeated use of reference characters in the text and figures is intended to represent the presence of a similar or related feature in all figures of which it is used. Furthermore, the application provides examples of various specific processes and materials, but one skilled in the art will recognize that other processes and / or materials can be used.

[0027] Referring to Figures 1-5 , the present application provides a technical solution: a double-cylinder wireless remote control grab bucket structure, comprising a pair of oil cylinders 6, an upper beam 7, a lower beam mechanism 1 and left and right grab buckets 2,

[0028] A pair of hinge shafts 101 for controlling the hinge connection of the left and right grab buckets 2 are arranged through the lower beam mechanism 1, and a locking mechanism is arranged on the inner side of the lower beam mechanism 1 to limit the rotation of the hinge shaft 101;

[0029] A pair of oil cylinders 6 are arranged between the upper beam 7 and the lower beam mechanism 1, and the output ends thereof are connected to the lower beam mechanism 1;

[0030] A wireless communication module is arranged in the upper beam 7 to receive instructions and feedback state data through wireless communication.

[0031] The left and right grab buckets 2 are provided with hinge seats 202 at both ends, the upper side of the hinge seat 202 is hingedly connected with a support rod 5, and the upper end of the support rod 5 is hingedly connected with the upper beam 7.

[0032] Preferably, the left and right grab buckets 2 are symmetrically arranged, the upper beam 7 is fixed, the lower beam mechanism 1 is raised and lowered, a pair of oil cylinders 6 are arranged between the upper beam 7 and the lower beam mechanism 1, the output ends of the oil cylinders 6 are arranged downward and connected with the lower beam mechanism 1, in the initial state, the output ends of the oil cylinders 6 are controlled to be retracted, at this time, the lower beam mechanism 1 is at the uppermost position, and the left and right grab buckets 2 are in the closed state, when it is needed to control the opening, the output ends of the oil cylinders 6 are controlled to extend, thereby pushing the lower beam mechanism 1 to move downward, so that the pair of hinge shafts 101 are displaced downward, at the same time, the two ends of the left and right grab buckets 2 are limited by the supporting rods 5 and cannot be lowered, therefore, under the pushing action of the lower beam mechanism 1, the hinge connection of the pair of hinge shafts 101 makes the left and right grab buckets 2 slowly unfold, preferably, in order to improve the stability of the closed left and right grab buckets 2 and avoid the risk hidden danger caused by the control failure of the oil cylinders 6 during the material transfer, a locking mechanism is arranged in the lower beam mechanism 1, specifically, when the left and right grab buckets 2 are unfolded relative to each other, the hinge shafts 101 at the upper ends will rotate relative to the lower beam mechanism 1, therefore, the locking mechanism is arranged to lock the pair of hinge shafts 101 during the grabbing and transferring of the materials, so as to limit the rotation of the hinge shafts 101, that is, the left and right grab buckets 2 cannot be unfolded, that is, the stable closing of the left and right grab buckets 2 can be realized, even if the driving control of the oil cylinders 6 is lost, the left and right grab buckets 2 also cannot unfold autonomously without external force, thereby ensuring the safety and stability of the material transfer;

[0033] Preferably, the locking mechanism includes but is not limited to a friction clutch / brake, etc.

[0034] Preferably, an industrial-grade wireless communication module is embedded in the upper beam 7, supports 5G / LoRa / Wi-Fi6, and staff can send instructions through a portable remote controller and receive sensor data such as pressure, opening degree and temperature of the left and right grab buckets 2 in real time.

[0035] A pair of reinforcing plates 201 are arranged on the inner side of the left and right grab buckets 2, the reinforcing plates 201 are in the shape of a Chinese character “gong”, the hinge shafts 101 penetrate the upper ends of the reinforcing plates 201 and are fixedly connected therewith;

[0036] Preferably, the reinforcing plates 201 are arranged in the shape of a Chinese character “gong”, the lower parts of the reinforcing plates 201 support the inner side of the left and right grab buckets 2, thereby strengthening the overall structural strength, the upper parts of the reinforcing plates 201 extend to the upper side of the left and right grab buckets 2 and are fixedly connected with the hinge shafts 101, thereby enabling the lower beam mechanism 1 to exert pressure on the upper parts of the reinforcing plates 201 in the shape of a Chinese character “gong”, and the hinge seats 202 are arranged on the middle side of the reinforcing plates 201, that is, on the protruding parts of the Chinese character “gong”, so as to enable the reinforcing plates 201 to drive the left and right grab buckets 2 to unfold or merge.

[0037] The upper side of the reinforcing plate 201 penetrates and is fixedly connected with a reinforcing rod 203, the two ends of the reinforcing rod 203 are fixedly connected with the two ends of the left and right grab buckets 2, thereby further enhancing the connection strength between the upper parts of the reinforcing plates 201 and the left and right grab buckets 2.

[0038] The upper end of the reinforcing plate 201 is fixedly connected with a sector gear 204, and the two side sector gears 204 are engaged with each other.

[0039] Preferably, the sector gears 204 are arranged at the upper end of the two side reinforcing plates 201, and the hinge shafts 101 penetrate the axes of the sector gears 204, and the two side sector gears 204 are engaged with each other by the relative rotation of the hinge shafts 101, thereby ensuring the synchronization of the left and right grab buckets 2.

[0040] The locking mechanism comprises a pair of clamping blocks 103, an accommodating cavity is arranged in the lower beam mechanism 1, the hinge shafts 101 are fixedly connected with clamping rollers 102 on the middle side, and a clamping groove is arranged on one side of the clamping rollers 102 and matched with the clamping blocks 103.

[0041] Preferably, the clamping blocks 103 are arranged to be liftable, and the clamping grooves are arranged on one side of the clamping rollers 102, and when the left and right grab buckets 2 are closed, the clamping blocks 103 are lifted and clamped into the clamping grooves of the clamping rollers 102, so that the clamping rollers 102 are clamped and the hinge shafts 101 cannot rotate, thereby realizing the locking function, and the structure is simple, the cost is reduced, and the practicality is high.

[0042] The lower end of the clamping block 103 is fixedly connected with a clamping plate 105, and the output end of the oil cylinder 6 is connected with the clamping plate 105.

[0043] Preferably, the clamping blocks 103 are driven and controlled by the oil cylinder 6, and specifically, in the initial state, the left and right grab buckets 2 are in the closed state, and at this time, the clamping blocks 103 are also in the clamping grooves, and when it is needed to expand the left and right grab buckets 2, the clamping plate 105 is driven to descend by the oil cylinder 6, the clamping blocks 103 are driven to descend, and until the clamping blocks 103 are separated from the clamping grooves, the locking state is released.

[0044] The output end of the oil cylinder 6 penetrates and is fixedly connected with a limiting plate 106, a limiting groove is arranged on the upper side of the lower beam mechanism 1, and a spring member is arranged between the limiting plate 106 and the limiting groove.

[0045] Preferably, when the clamping blocks 103 are lowered to release the locking state, the hinge shafts 101 can rotate at this time, and at this time, the limiting plate 106 on the output end of the oil cylinder 6 is lowered into the limiting groove, and the oil cylinder 6 can continue to drive the output end to descend, the lower beam mechanism 1 is pushed by the limiting plate 106, and the left and right grab buckets 2 are expanded, that is, the control of the locking mechanism and the opening and closing control of the left and right grab buckets 2 are realized by the driving of the oil cylinder 6, and the practicality is high.

[0046] Preferably, a spring is provided. When the hydraulic cylinder 6 fails, the output end loses control. Under the action of gravity, the output end and the lower support beam mechanism 1 will naturally descend, making it impossible for the left and right grab buckets 2 to close stably. At this time, the spring force keeps the output end of the hydraulic cylinder 6 in the retracted state, so that the locking block 103 is always locked in the slot. This prevents the pair of hinge shafts 101 from rotating, thus ensuring that the left and right grab buckets 2 are always closed. The spring is simple in structure and has strong stability.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0048] The foregoing has provided a detailed description of a dual-cylinder wireless remote-controlled grab structure provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A dual-cylinder wireless remote-controlled grab structure, comprising a pair of hydraulic cylinders (6), an upper support beam (7), a lower support beam mechanism (1), and left and right grabs (2), characterized in that: The lower support beam mechanism (1) is provided with a pair of hinge shafts (101) that control the hinge connection of the left and right grab buckets (2). The lower support beam mechanism (1) is provided with a locking mechanism that restricts the rotation of the hinge shafts (101). A pair of hydraulic cylinders (6) are located between the upper bearing beam (7) and the lower bearing beam mechanism (1), and their output ends are connected to the lower bearing beam mechanism (1); The upper support beam (7) is equipped with a wireless communication module, which receives instructions and feeds back status data via wireless communication.

2. The dual-cylinder wireless remote-controlled grab structure according to claim 1, characterized in that: The inner side of the left and right grabs (2) is provided with a pair of reinforcing plates (201), the reinforcing plates (201) are bow-shaped, and the hinge shaft (101) passes through the upper end of the reinforcing plates (201) and is fixedly connected to them; The left and right grabs (2) are provided with hinge seats (202) at both ends. The upper side of the hinge seat (202) is hinged to a support rod (5). The upper end of the support rod (5) is hinged to the upper support beam (7).

3. The dual-cylinder wireless remote-controlled grab structure according to claim 2, characterized in that: A reinforcing rod (203) is fixedly connected through the upper side of the reinforcing plate (201), and the two ends of the reinforcing rod (203) are fixedly connected to the two ends of the left and right grabs (2).

4. The dual-cylinder wireless remote-controlled grab structure according to claim 2, characterized in that: The upper end of the reinforcing plate (201) is fixedly connected to a sector gear (204), and the sector gears (204) on both sides mesh with each other.

5. A dual-cylinder wireless remote-controlled grab structure according to claim 1, 2, or 4, characterized in that: The locking mechanism includes a pair of locking blocks (103), the lower support beam mechanism (1) has an internal adaptation cavity, the hinge shaft (101) is fixedly connected to a locking roller (102), and a locking groove is opened on one side of the locking roller (102), which is adapted to the locking block (103).

6. The dual-cylinder wireless remote-controlled grab structure according to claim 5, characterized in that: The lower end of the card block (103) is fixedly connected to the card plate (105), and the output end of the oil cylinder (6) is connected to the card plate (105).

7. The dual-cylinder wireless remote-controlled grab structure according to claim 6, characterized in that: The output end of the hydraulic cylinder (6) is connected through and fixedly connected to the limiting plate (106). A limiting groove is opened on the upper side of the lower support beam mechanism (1), and a spring is provided between the limiting groove and the limiting plate (106).

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