Grabbing machine grab bucket with weighing function

Abstract

The utility model relates to the field of grab buckets, in particular to a grab bucket of a grabbing machine with a weighing function, which comprises a connecting seat, a weighing structure is arranged on the outer wall of the bottom of the connecting seat, a connecting disc is arranged on the outer wall of the bottom of the weighing structure, a main shaft is welded at the center of the outer wall of the bottom of the connecting disc, and a grabbing disc is welded on the outer wall of the other end of the main shaft. First hinge blocks distributed at equal intervals are welded to the outer wall of the side edge of the grabbing disc and the outer wall of the bottom of the connecting disc, and the grabbing disc is located in the first hinge blocks and rotationally connected with a grabbing hand plate; the weighing structure comprises a weighing sensor, a connecting rod inserted in the center of the outer wall of the top of the re-weighing sensor, and connecting screws installed on the outer wall of the re-weighing sensor at equal intervals. The weight of the gripper plate and the weight of materials are transmitted to the weighing sensor through the main shaft, the connecting disc and the connecting screw rod, the weighing sensor displays and calculates the weight of the materials, weighing and using are convenient, and the amount of added materials is convenient to calculate.

Description

Technical Field

[0001] The utility model relates to the technical field of grab buckets, and particularly relates to a grab bucket of a grab machine with a weighing function. Background Art

[0002] The raw materials of a steel mill are iron ore, coal, charcoal, etc., which are supplied by the mining industry. At present, for the feeding method of scrap steel raw materials for a newly built 90T melting furnace in a steel mill, a steel grab machine is used to grab and load the materials onto a chain conveyor, and then the materials are transported to the melting furnace through the chain conveyor;

[0003] The steel grab machine has no weighing system, so it is impossible to calculate the amount of added materials, and it is easy to add too much or too little, which is rather inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to address the above-mentioned problems and deficiencies by providing a grab bucket of a grab machine with a weighing function: the weight of the grab plate and the materials is transmitted to a weighing sensor through a main shaft, a connecting disk, and a connecting screw rod. The weighing sensor displays and calculates the weight of the materials, facilitating weighing, use, and calculation of the amount of added materials, and solving the problem of inability to calculate the amount of added materials caused by the lack of a weighing structure.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A grab bucket of a grab machine with a weighing function includes a connecting seat. A weighing structure is provided on the outer wall of the bottom of the connecting seat, and a connecting disk is provided on the outer wall of the bottom of the weighing structure. A main shaft is welded at the center of the outer wall of the bottom of the connecting disk, and a grab disk is welded on the outer wall of the other end of the main shaft. Equal-distance distributed hinge blocks I are welded on the outer side wall of the grab disk and the outer wall of the bottom of the connecting disk, and the grab disk is rotatably connected with a grab plate in the hinge blocks I; the weighing structure includes a weighing sensor, a connecting rod inserted at the center of the outer wall of the top of the weighing sensor, and connecting screw rods installed at equal distances on the outer wall of the weighing sensor.

[0007] Preferably, a connecting screw is connected to the center of the bottom of the weighing sensor, and the other end of the connecting screw is screwed to the center of the bottom of the connecting rod.

[0008] Preferably, the top outer wall of the connecting rod is welded to the center of the outer wall of the bottom of the connecting seat, and a nut is screwed on the outer wall of the connecting screw rod. The bottom outer wall of the connecting screw rod is welded to the top outer wall of the connecting disk.

[0009] Preferably, a protective cylinder is placed on the top outer wall of the connecting disk, and holes adapted to the connecting screw rods are provided in the protective cylinder. Two protective semi-rings are installed on the outer wall of the bottom of the connecting seat, and the outer wall of the protective cylinder is slidably connected to the inner side wall of the protective semi-rings.

[0010] Preferably, hinge blocks II are welded to one ends of the outer walls of the gripper plates, and a hydraulic push rod is provided between the hinge block I of the connecting disk and the hinge block II. The two ends of the hydraulic push rod are respectively rotatably connected to the hinge block I and the hinge block II.

[0011] According to the above solution: the weights of the gripper plates and the material are transmitted to the weighing sensor through the main shaft, the connecting disk and the connecting screw rod. The weighing sensor displays and calculates the weight of the material, facilitating weighing, use and calculation of the amount of added material.

[0012] Preferably, anti-slip protrusions are arranged at equal intervals on the outer walls of the mutually adjacent sides of the gripper plates, and a vibration motor is installed at the center of the bottom outer wall of the gripping disk. A protective housing is installed at the position of the vibration motor on the gripping disk.

[0013] Preferably, the vibration motor, the hydraulic push rod and the weighing sensor are connected to the controller through wires, and the controller is connected to the power supply through wires.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The weights of the gripper plates and the material are transmitted to the weighing sensor through the main shaft, the connecting disk and the connecting screw rod. The weighing sensor displays and calculates the weight of the material, facilitating weighing, use and calculation of the amount of added material;

[0016] 2. The protective semi-ring at the bottom of the connecting seat and the protective cylinder protect the weighing sensor inside, increasing the service life of the weighing sensor and ensuring the life of the weighing sensor. Description of the Drawings

[0017] Figure 1 is the unfolded structural schematic diagram of a grab bucket of a grab machine with a weighing function proposed by the present utility model;

[0018] Figure 2 is the structural schematic diagram of the connecting disk of a grab bucket of a grab machine with a weighing function proposed by the present utility model;

[0019] Figure 3 is the structural schematic diagram of the gripper plate of a grab bucket of a grab machine with a weighing function proposed by the present utility model;

[0020] Figure 4 is the overall structural schematic diagram of a grab bucket of a grab machine with a weighing function proposed by the present utility model.

[0021] In the figure: 1 connecting seat, 2 weighing structure, 3 connecting disk, 4 main shaft, 5 gripping disk, 6 hinge block I, 7 gripper plate, 8 hinge block II, 9 hydraulic push rod, 10 connecting rod, 11 weighing sensor, 12 connecting screw, 13 connecting screw rod, 14 protective cylinder, 15 protective semi-ring, 16 anti-slip protrusion, 17 vibration motor. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1:

[0024] Refer to Figures 1-4 , a grab bucket of a grab machine with a weighing function, including a connecting seat 1. A weighing structure 2 is provided on the outer wall of the bottom of the connecting seat 1, and a connecting plate 3 is provided on the outer wall of the bottom of the weighing structure 2. A main shaft 4 is welded at the center of the outer wall of the bottom of the connecting plate 3, and the other end of the main shaft 4 is welded with a grab plate 5. Equal-distance distributed hinge blocks one 6 are welded on the outer side wall of the grab plate 5 and the outer wall of the bottom of the connecting plate 3, and the grab plate 5 is rotatably connected with a grab hand plate 7 in the hinge block one 6;

[0025] Hinge blocks two 8 are welded at one end of the outer wall of the grab hand plate 7, and a hydraulic push rod 9 is provided between the hinge block one 6 of the connecting plate 3 and the hinge block two 8. The two ends of the hydraulic push rod 9 are respectively rotatably connected in the hinge block one 6 and the hinge block two 8;

[0026] Anti-slip protrusions 16 are provided on the outer side wall of the grab hand plate 7 at equal distances, and a vibration motor 17 is installed at the center of the outer wall of the bottom of the grab plate 5. A protective shell is installed on the grab plate 5 at the vibration motor 17. When discharging, the vibration motor 17 is started to generate vibration and transmitted to the grab hand plate 7, and the residues on the grab hand plate 7 are shaken off, facilitating discharging. The protective protrusions 16 on one side wall of the grab hand plate 7 increase the friction of the grab hand plate 7;

[0027] The vibration motor 17, the hydraulic push rod 9 and the weighing sensor 11 are connected to the controller through wires, and the controller is connected to the power supply through wires. Starting the motor 17 generates vibration on the grab hand plate, and the vibration will shake off the residual materials on the grab hand plate 7, avoiding residues and avoiding affecting material grabbing.

[0028] Embodiment 2:

[0029] Refer to Figures 1-3 , the weighing structure 2 includes a weighing sensor 11, a connecting rod 10 inserted into the center of the outer wall of the top of the weighing sensor 11, and connecting screws 13 installed on the outer wall of the weighing sensor 11 at equal distances. The weighing sensor 11 adopts a large hollow tension and compression dual-purpose standard sensor. Replace the fixed connection head between the small arm of the grab crane and the grab bucket with the connecting seat 1 installed with the weighing sensor 11. The weighing sensor 11 is located between the connecting seat 1 and the connecting plate 3. When the grab crane grabs materials, the weighing sensor 11 can weigh the weight of the heavy objects grabbed by the grab hand plate 7 of the grab crane, facilitating weighing, metering and use;

[0030] A connecting screw 12 is connected to the center of the bottom of the load cell 11, and the other end of the connecting screw 12 is screwed to the center of the bottom of the connecting rod 10;

[0031] The outer wall of the top end of the connecting rod 10 is welded to the center of the bottom outer wall of the connecting seat 1, and a nut is screwed on the outer wall of the connecting screw 13. The outer wall of the bottom end of the connecting screw 13 is welded to the top outer wall of the connecting plate 3;

[0032] A protective cylinder 14 is placed on the top outer wall of the connecting plate 3, and the protective cylinder 14 is provided with a hole adapted to the connecting screw 13. Two protective semi-rings 15 are installed on the bottom outer wall of the connecting seat 1, and the outer wall of the protective cylinder 14 is slidably connected to the inner outer wall of the protective semi-ring 15. The protective semi-ring 15 at the bottom of the connecting seat 1 and the protective cylinder 14 protect the load cell 11 inside, ensuring the service life of the load cell 11.

[0033] Working principle: When in use, the whole is connected to one end of the small arm of the steel grabber through the connecting seat 1. The start of the steel grabber will drive the whole to move. After the gripper plate 7 descends, the hydraulic push rod 9 is started. The extension of the hydraulic push rod 9 drives one end of the gripper plate 7 to approach each other, and under the restriction of the gripper disc 5, the material is grasped. Subsequently, the steel grabber drives the whole to rise, making the gripper plate 7 and the material suspended. At this time, the weight of the gripper plate 7 and the material is transmitted to the load cell 11 through the main shaft 4, the connecting plate 3 and the connecting screw 13. The load cell 11 displays and calculates the weight of the material, facilitating the personnel to observe the added material quantity. The protective semi-ring 15 at the bottom of the connecting seat 1 and the protective cylinder 14 protect the load cell 11 inside, ensuring the service life of the load cell 11; the gripper plate 7 moves away from each other under the action of the hydraulic push rod 9, and the clamped material is released. At this time, the motor 17 is started to generate vibration on the gripper plate, and the vibration will shake off the residual material on the gripper plate 7, avoiding residue and affecting material grasping.

[0034] The exemplary embodiments of the present invention are described in detail with reference to the embodiments. However, those skilled in the art can understand that, without departing from the concept of the present invention, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present invention can be made, without exceeding the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims. The foregoing description of the specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise form disclosed, and obviously, many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A grab bucket with a weighing function, comprising a connecting seat (1), characterized in that: The bottom outer wall of the connecting seat (1) is provided with a weighing structure (2), and the bottom outer wall of the weighing structure (2) is provided with a connecting plate (3), a main shaft (4) is welded at the center of the bottom outer wall of the connecting plate (3), and a grab plate (5) is welded on the outer wall of the other end of the main shaft (4), and the side outer wall of the grab plate (5) and the bottom outer wall of the connecting plate (3) are both welded with hinge blocks (6) distributed at equal distances, and the grab plate (5) is rotatably connected to the hinge block (6) and is located in the hinge block (6). The weighing structure (2) comprises a weighing sensor (11), a connecting rod (10) inserted at the center of the top outer wall of the weighing sensor (11), and connecting screws (13) installed at equal distances on the outer wall of the weighing sensor (11); The outer wall of the gripping plates (7) on one side close to each other is provided with anti-slip protrusions (16) distributed at equal distances, and a vibration motor (17) is installed at the center of the bottom outer wall of the gripping plate (5), and a protective shell is installed at the gripping plate (5) at the vibration motor (17).

2. The grab bucket with weighing function according to claim 1, characterized in that: A connecting screw (12) is connected to the bottom center of the weighing sensor (11), and the other end of the connecting screw (12) is screwed to the bottom center of the connecting rod (10).

3. The grab bucket with weighing function according to claim 1, characterized in that: The top outer wall of the connecting rod (10) is welded to the center of the bottom outer wall of the connecting seat (1), and a nut is screwed to the outer wall of the connecting screw (13), and the bottom outer wall of the connecting screw (13) is welded to the top outer wall of the connecting plate (3).

4. The grab bucket with weighing function according to claim 1, characterized in that: A protective tube (14) is placed on the top outer wall of the connecting plate (3), and a matching hole is opened on the protective tube (14) at the connecting screw (13). Two protective half rings (15) are installed on the bottom outer wall of the connecting seat (1), and the outer wall of the protective tube (14) is slidably connected to the inner outer wall of the protective half ring (15).

5. The grab bucket with weighing function according to claim 1, characterized in that: A hinge block 2 (8) is welded at one end of the outer wall of the gripping plate (7), and a hydraulic push rod (9) is provided between the hinge block 1 (6) and the hinge block 2 (8) of the connecting plate (3), and the two ends of the hydraulic push rod (9) are rotatably connected to the hinge block 1 (6) and the hinge block 2 (8) respectively.

6. The grab bucket with weighing function according to claim 1, characterized in that: The vibration motor (17), the hydraulic push rod (9) and the weighing sensor (11) are connected to a controller via wires, and the controller is connected to a power source via wires.

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