Grab arm structure and engineering trolley

Abstract

The utility model relates to a kind of grab arm structure and engineering trolley, including connecting arm, for and big arm installation connection;Swing arm mechanism, for supporting gripper assembly;Gripper assembly, for the capture of arch frame;Rotary mechanism, rotary mechanism can drive swing arm mechanism to carry out rotary motion;The lower end of the connecting arm is connected with the side of rotary mechanism, the other side of rotary mechanism is connected with one end of swing arm mechanism, the other end of swing arm mechanism is connected with gripper assembly;Swing arm mechanism includes mounting seat and basic arm.The utility model obtains a kind of grab arm structure and engineering trolley, with the following advantages: rotary mechanism can drive swing arm mechanism to rotate, further make gripper assembly rotate, expand the working range of gripper assembly;Rotary mechanism can drive swing arm mechanism to rotate, make gripper assembly rotate, expand the working range of gripper assembly.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a grab arm structure and an engineering trolley. Background Technology

[0002] In recent years, my country's underground engineering industry has developed rapidly, and mechanized operations have been gradually and widely promoted and applied in engineering technology, especially in the field of underground tunnel construction.

[0003] In the prior art, for example, Chinese Utility Model Patent Publication No. CN 218206686 U discloses a grab arm structure and an engineering trolley, including a connecting seat. The connecting seat includes a first mounting station and a second mounting station, wherein the first mounting station is used to connect to the boom of the engineering trolley; a first drive structure is connected to the connected second mounting station; and a grab arm assembly is connected to the first drive structure to be driven by the first drive structure to perform rotary motion. The grab arm assembly includes at least a gripping structure and a second drive structure connected thereto, the second drive structure being able to drive the gripping structure to perform swing motion to adjust the gripping working surface of the gripping structure. However, this grab arm structure is relatively complex, unfavorable for manufacturing, and has high manufacturing costs. Utility Model Content

[0004] One objective of this application is to provide a grab arm structure and an engineering trolley, which are simple in structure and low in cost.

[0005] The technical solution adopted in this application is: a gripper arm structure, comprising:

[0006] Connecting arm, used for installation and connection with the boom;

[0007] The swing arm mechanism is used to support the gripper assembly;

[0008] Grab assembly, used for gripping the arch frame;

[0009] The rotating mechanism can drive the swing arm mechanism to rotate.

[0010] The lower end of the connecting arm is connected to one side of the rotating mechanism, the other side of the rotating mechanism is connected to one end of the swing arm mechanism, and the other end of the swing arm mechanism is connected to the gripper assembly; the swing arm mechanism includes a mounting base and a basic arm.

[0011] Compared with the prior art, the advantages of this application are that the rotating mechanism can drive the swing arm mechanism to rotate, thereby causing the gripper assembly to rotate and expanding the working range of the gripper assembly; the gripper assembly can grip the arch frame, adopting mechanical operation, reducing the labor intensity of workers and improving work efficiency.

[0012] In some embodiments of this application, the swing arm mechanism comprises a mounting base, a basic arm, a first adapter, a connecting rod, a first drive mechanism, a swing seat, and a second drive mechanism. The mounting base is rotatably connected to the swing seat, the swing seat is rotatably connected to the basic arm, one end of the first adapter is rotatably connected to the mounting base, the other end of the first adapter is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the swing seat. The first drive mechanism drives the swing seat to swing, and the second drive mechanism drives the basic arm to swing. The connecting arm is connected to the main arm of the trolley, and the distance adjustment of the gripper assembly is achieved by the extension and retraction of the main arm of the trolley. Therefore, a telescopic arm is not required in the swing arm mechanism, reducing costs.

[0013] Furthermore, the connecting arm is arranged in a vertical straight line, and the mounting base is arranged in a horizontal straight line; the upper side of the rotating mechanism is connected to the lower end of the connecting arm, and the lower side of the rotating mechanism is connected to the upper end of the mounting base; the connecting arm, the rotating mechanism, and the mounting base form an L-shape.

[0014] In some embodiments of this application, the gripper assembly is connected to the swing arm mechanism via a second adapter.

[0015] Furthermore, an angle adjustment mechanism is provided between the second adapter and the swing arm mechanism. The angle adjustment mechanism is used to adjust the deflection angle of the gripper assembly relative to the swing arm mechanism.

[0016] Furthermore, the angle adjustment mechanism is an angle adjustment cylinder, one end of which is hinged to the basic arm and the other end is hinged to the second adapter.

[0017] Furthermore, the gripper assembly includes a gripper mechanism and a swing mechanism, the swing mechanism being able to drive the gripper mechanism to perform swinging motion.

[0018] Furthermore, the swing mechanism is a swing cylinder, with one end of the swing cylinder hinged to the gripper mechanism and the other end hinged to the second adapter.

[0019] Furthermore, the gripper mechanism includes a swing plate, one end of which is hinged to the second adapter; the swing plate is provided with claws.

[0020] An engineering trolley includes the aforementioned grab arm structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 2 .

[0023] In the diagram: 1. Connecting arm; 2. Swing arm mechanism; 21. Mounting base; 22. Basic arm; 23. First adapter; 24. Connecting rod; 25. First drive mechanism; 26. Swing seat; 27. Second drive mechanism; 3. Grip assembly; 31. Grip mechanism; 32. Swing cylinder; 33. Swing plate; 34. Claw; 4. Rotation mechanism; 5. Second adapter; 6. Angle adjustment mechanism. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Example 1:

[0026] This embodiment provides a gripper structure, such as Figure 1 , Figure 2 As shown, it includes:

[0027] Connecting arm 1, used for installation and connection with the main arm;

[0028] The swing arm mechanism 2 is used to support the gripper assembly 3;

[0029] Grab assembly 3, used for gripping the arch frame;

[0030] Rotating mechanism 4 can drive the swing arm mechanism 2 to rotate.

[0031] The lower end of the connecting arm 1 is connected to one side of the rotating mechanism 4, the other side of the rotating mechanism 4 is connected to one end of the swing arm mechanism 2, and the other end of the swing arm mechanism 2 is connected to the gripper assembly 3; the swing arm mechanism 2 is composed of a mounting base 21, a basic arm 22, a first adapter 23, a connecting rod 24, a first drive mechanism 25, a swing seat 26, and a second drive mechanism 27.

[0032] The connecting arm 1 is connected to the main arm of the trolley. The distance adjustment of the gripper assembly 3 is achieved by the extension and retraction of the main arm of the trolley. Therefore, there is no need to set up a telescopic arm in the swing arm mechanism 2, which reduces the cost. The rotating mechanism 4 can drive the swing arm mechanism 2 to rotate, thereby causing the gripper assembly 3 to rotate and expanding the working range of the gripper assembly 3. The gripper assembly 3 can grasp the arch frame. The mechanical operation reduces the labor intensity of workers and improves work efficiency.

[0033] For reliable operation of the swing arm mechanism 2, the mounting base 21 is rotatably connected to the swing seat 26, and the swing seat 26 is rotatably connected to the basic arm 22. One end of the first adapter 23 is rotatably connected to the mounting base 21, and the other end of the first adapter 23 is rotatably connected to one end of the connecting rod 24. The other end of the connecting rod 24 is rotatably connected to the swing seat 26. The first drive mechanism 25 drives the swing seat 26 to swing, and the second drive mechanism 27 drives the basic arm 22 to swing. One end of the first drive mechanism 25 is rotatably connected to the mounting base 21, and the other end of the first drive mechanism 25 is rotatably connected to the first adapter 23. One end of the second drive mechanism 27 is rotatably connected to the swing seat 26, and the other end of the second drive mechanism 27 is rotatably connected to the basic arm 22. In this embodiment, both the first drive mechanism 25 and the second drive mechanism 27 are hydraulic cylinders.

[0034] The first drive mechanism 25 can drive the first adapter 23 to rotate, and then the first adapter 23 drives the connecting rod 24 to move, and the connecting rod 24 pushes the swing seat 26 to achieve pitch adjustment; the second drive mechanism 27 can drive the basic arm 22 to rotate around the hinge point with the swing seat 26, thereby realizing the swing of the gripper assembly 3. The swing is reliable and the gripping position of the gripper assembly 3 can be easily adjusted.

[0035] The plane of motion of the first drive mechanism 25 driving the swing seat 26 to swing is perpendicular to the plane of motion of the second drive mechanism 27 driving the basic arm 22 to swing.

[0036] The connecting arm 1 is arranged vertically in a straight line, and the mounting base 21 is arranged horizontally in a straight line. The connecting arm 1 and the mounting base 21 have simple structures, are easy to manufacture and process, and have low cost. The upper side of the rotating mechanism 4 is connected to the lower end of the connecting arm 1, and the lower side of the rotating mechanism 4 is connected to the upper end of the mounting base 21. The rotating mechanism 4 and the basic arm 22 are located on both sides of the mounting base 21. The distance between the rotating mechanism 4 and the basic arm 22 is large, which allows the rotating mechanism 4 to drive the basic arm 22 to rotate over a large range, and thus the rotation range of the gripper assembly 3 is also large. The connecting arm 1, the rotating mechanism 4 and the mounting base 21 form an L-shape. The L-shaped design makes the distance between the connecting arm 1 and the basic arm 22 large, which facilitates the connection between the connecting arm 1 and the main arm of the trolley. The connecting arm 1 and the basic arm 22 are located on the same side of the mounting base 21, and the overall height is low, which is suitable for working environments with limited height, such as mines.

[0037] For ease of connection, the gripper assembly 3 is connected to the base arm 22 via a second adapter 5. The lower end of the second adapter 5 is hinged to the upper end of the base arm 22, and the swing plate 33 is hinged to the second adapter 5. The design of the second adapter 5 enables the gripper assembly 3 to be connected to the base arm 22.

[0038] To expand the gripping range, an angle adjustment mechanism 6 is provided between the second adapter 5 and the basic arm 22. The angle adjustment mechanism 6 is used to adjust the deflection angle of the gripper assembly 3 relative to the swing arm mechanism 2. The angle adjustment mechanism 6 can adjust the deflection angle of the gripper assembly 3, making it convenient for the gripper assembly 3 to grip in different directions.

[0039] To ensure reliable angle adjustment, the angle adjustment mechanism 6 is an angle adjustment cylinder. One end of the angle adjustment cylinder is hinged to the basic arm 22, and the other end is hinged to the second adapter 5. The motion plane in which the angle adjustment cylinder drives the second adapter 5 to deflect is parallel to or coincides with the motion plane in which the first drive mechanism 25 drives the basic arm 22 to swing.

[0040] To expand the gripping range, the gripper assembly 3 includes a gripper mechanism 31 and a swing mechanism. The swing mechanism drives the gripper mechanism 31 to swing. The swing mechanism is a swing cylinder 32, with one end hinged to the gripper mechanism 31 and the other end hinged to the second adapter 5. The swing cylinder 32 drives the gripper mechanism 31 to rotate around the hinge point, and directly pushes the gripper mechanism 31 to swing. The small rotation radius of the gripper mechanism 31 facilitates adjustment of the gripping position within a small range, resulting in more precise gripping.

[0041] To ensure the reliability of the gripper mechanism 31, the gripper mechanism 31 includes a swing plate 33, one end of which is hinged to the second adapter 5; the swing plate 33 is provided with claws 34. Specifically, one end of the swing plate 33 is hinged to the top side of the second adapter 5, and the other end is hinged to the swing cylinder 32; the claws 34 are arranged in pairs on the swing plate 33, and are provided at least at both ends of the swing plate 33. The motion plane of the swing plate 33 driven by the swing cylinder 32 is perpendicular to the motion plane of the second adapter 5 driven by the angle adjustment cylinder.

[0042] Example 2:

[0043] This embodiment provides an engineering trolley, which includes a grab arm structure as described in Embodiment 1.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A gripper arm structure, characterized in that, include: Connecting arm (1), used for installation and connection with the main arm; The swing arm mechanism (2) is used to support the gripper assembly (3); The gripper assembly (3) is used for gripping the arch frame; Rotating mechanism (4) can drive swing arm mechanism (2) to rotate; The lower end of the connecting arm (1) is connected to one side of the rotating mechanism (4), the other side of the rotating mechanism (4) is connected to one end of the swing arm mechanism (2), and the other end of the swing arm mechanism (2) is connected to the gripper assembly (3); the swing arm mechanism (2) includes a mounting base (21) and a basic arm (22). The swing arm mechanism (2) consists of a mounting base (21), a basic arm (22), a first adapter (23), a connecting rod (24), a first drive mechanism (25), a swing seat (26), and a second drive mechanism (27); The connecting arm (1) is arranged in a vertical straight line, and the mounting base (21) is arranged in a horizontal straight line; the upper side of the rotating mechanism (4) is connected to the lower end of the connecting arm (1), and the lower side of the rotating mechanism (4) is connected to the upper end of the mounting base (21); the connecting arm (1), the rotating mechanism (4) and the mounting base (21) form an L-shape.

2. The gripper structure according to claim 1, characterized in that: The mounting base (21) is rotatably connected to the swing base (26), the swing base (26) is rotatably connected to the basic arm (22), one end of the first adapter (23) is rotatably connected to the mounting base (21), the other end of the first adapter (23) is rotatably connected to one end of the connecting rod (24), the other end of the connecting rod (24) is rotatably connected to the swing base (26), the first drive mechanism (25) is used to drive the swing base (26) to swing, and the second drive mechanism (27) is used to drive the basic arm (22) to swing.

3. The gripper structure according to claim 1, characterized in that: The gripper assembly (3) is connected to the swing arm mechanism (2) via the second adapter (5).

4. The gripper structure according to claim 3, characterized in that: An angle adjustment mechanism (6) is provided between the second adapter (5) and the swing arm mechanism (2). The angle adjustment mechanism (6) is used to adjust the deflection angle of the gripper assembly (3) relative to the swing arm mechanism (2).

5. The gripper structure according to claim 4, characterized in that: The angle adjustment mechanism (6) is an angle adjustment cylinder. One end of the angle adjustment cylinder is hinged to the basic arm (22), and the other end is hinged to the second adapter (5).

6. The gripper structure according to claim 3, characterized in that: The gripper assembly (3) includes a gripper mechanism (31) and a swing mechanism, which can drive the gripper mechanism (31) to swing.

7. A gripper structure according to claim 6, characterized in that: The swing mechanism is a swing cylinder (32), one end of which is hinged to the gripper mechanism (31), and the other end is hinged to the second adapter (5).

8. The gripper structure according to claim 7, characterized in that: The gripper mechanism (31) includes a swing plate (33), one end of which is hinged to the second adapter (5); the swing plate (33) is provided with a claw (34).

9. An engineering trolley, characterized in that, Includes a gripper structure as described in any one of claims 1-8.

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