Full-automatic loading arm

Abstract

The utility model relates to the technical field of crane pipes, and particularly discloses a full-automatic crane pipe which comprises a stand column, an inner arm pipeline, an outer arm pipeline, a vertical pipe, an intelligent control table, an inner arm connecting pipe and an outer arm connecting pipe, the middle of the stand column is connected with a liquid inlet pipe through a first connecting plate, and the top of the liquid inlet pipe is connected with the inner arm connecting pipe through a first rotating connector. One side of the top of the inner arm connecting pipe is welded to an inner arm pipeline, one end of the inner arm pipeline is connected with an outer arm connecting pipe through a second rotating joint, the outer arm connecting pipe is connected with an outer arm pipeline through a third rotating joint, and the outer arm pipeline is connected with a vertical pipe through a fourth rotating joint; the crane pipe can be fully automatically expanded and contracted through the three driving devices, the flexibility is high, the stability performance is good, and the overall stability performance of the crane pipe in the working process is improved through the spring cylinder balance mechanism, the reinforcing beam and the vertical pipe return control mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of loading arms, in particular to a full-automatic loading arm. Background Technique

[0002] A loading arm is a telescopic and movable pipe, mostly used for liquid loading and unloading at oil and chemical terminals, with media such as oil and water inside the pipe. It is divided into various types and has advantages such as high safety and flexibility compared to old-fashioned hoses.

[0003] The loading arm mainly consists of fixed, slewing, operating, balancing and other mechanisms and oil pipes. Among them, the slewing mechanism (swivel joint) is carefully manufactured from forged steel or aluminum alloy, with multiple-row ball bearings and special stainless steel seals installed inside. It rotates flexibly, has reliable sealing performance and is durable. The balancing system has types such as counterweight, torsion spring, compression spring, tension spring, lead screw, and hydraulic and pneumatic balancing, all of which can be operated with very little force.

[0004] Loading arms are widely used, but there are many problems with current loading arms, specifically as follows: 1. Existing loading arms cannot achieve full-automatic deployment and retraction, with poor flexibility and stability; 2. During the use of existing loading arms, raw materials are prone to volatilize from the tank mouth, not only causing raw material losses but also polluting the environment; 3. Existing loading arms cannot accurately locate the position of the tank mouth, resulting in inaccurate positioning. Manual assistance is required, which is very inconvenient and time-consuming. Therefore, a full-automatic loading arm is provided. Content of the Utility Model

[0005] The purpose of the utility model is to address the deficiencies of the prior art by providing a full-automatic loading arm to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A full-automatic loading arm, comprising a column, an inner arm pipe, an outer arm pipe, a vertical pipe, an intelligent console, an inner arm connecting pipe and an outer arm connecting pipe. The middle of the column is connected to a liquid inlet pipe through a first connecting plate. The top of the liquid inlet pipe is connected to the inner arm connecting pipe through a first rotary joint. One side of the top of the inner arm connecting pipe is welded to the inner arm pipe. One end of the inner arm pipe is connected to the outer arm connecting pipe through a second rotary joint. The outer arm connecting pipe is connected to the outer arm pipe through a third rotary joint. The outer arm pipe is connected to the vertical pipe through a fourth rotary joint;

[0007] The top of the column is welded to a second connecting plate. One end of the second connecting plate is provided with a first reduction gearbox. The bottom of the first reduction gearbox is connected to the inner arm connecting pipe. Reinforcing beams are welded on both the inner arm pipe and the inner arm connecting pipe. One side of the bottom of the reinforcing beam is provided with a second reduction gearbox and a third reduction gearbox. One end of the third reduction gearbox is connected to a connecting rod. The top of the second reduction gearbox is connected to the outer arm connecting pipe;

[0008] Servo motors are mounted on the first reduction gearbox, the second reduction gearbox and the third reduction gearbox by bolts.

[0009] As a preferred technical solution of the present utility model, a sealing cap is mounted on the vertical pipe, and a metal hose is connected to the sealing cap.

[0010] As a preferred technical solution of the present utility model, a vertical pipe return control mechanism is connected to the third rotary joint and the fourth rotary joint. The vertical pipe return control mechanism is a U-shaped positioning connecting member composed of a main connecting rod and two sub-connecting rods. The main connecting rod and the two sub-connecting rods are connected by a pin shaft. The sub-connecting rods are fixed on the third rotary joint and the fourth rotary joint, and a laser detection and industrial imaging device is mounted at one end of the main connecting rod.

[0011] As a preferred technical solution of the present utility model, the middle part of the outer arm pipe is connected to the limit plate on the third rotary joint through a spring cylinder balance mechanism. A third connecting plate is mounted on the limit plate by bolts. The third connecting plate is movably connected to the connecting head at one end of the spring cylinder balance mechanism through a pin shaft. The other end of the spring cylinder balance mechanism is movably connected to the fixed frame in the middle of the outer arm pipe through a pin shaft. A spring is installed inside the spring cylinder balance mechanism.

[0012] As a preferred technical solution of the present utility model, the first reduction gearbox is mounted on the second connecting plate by bolts, and the second reduction gearbox and the third reduction gearbox are mounted on the mounting plate at the bottom of the strengthening beam by bolts.

[0013] As a preferred technical solution of the present utility model, a first sealing plate is welded to the top of the inner arm connecting pipe. The first sealing plate is connected to the gear inside the first reduction gearbox through a connecting shaft. A second sealing plate is welded to the bottom of the outer arm connecting pipe. The second sealing plate is connected to the gear inside the second reduction gearbox through a connecting shaft. One end of the connecting rod is connected to the gear inside the third reduction gearbox through a connecting shaft, and the other end of the connecting rod is connected to the fixed frame at the bottom of the outer arm pipe through a pin shaft.

[0014] As a preferred technical solution of the present utility model, the intelligent control console is electrically connected to the servo motors on the first reduction gearbox, the second reduction gearbox and the third reduction gearbox.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The loading arm of the present utility model can be fully automatically deployed and retracted by three driving devices, with strong flexibility and good stability. The spring cylinder balance mechanism, the strengthening beam and the vertical pipe return control mechanism are adopted to improve the overall stability of the loading arm during operation;

[0017] 2. During the use of the loading arm of the present utility model, a sealing cap is used to seal the tank opening, making it difficult for the raw materials to volatilize from the tank opening, avoiding raw material loss and preventing environmental pollution.

[0018] 3. The loading arm of the present utility model uses laser detection and industrial imaging equipment to accurately locate the position of the tank opening. The positioning is accurate, without the need for manual assistance, which is very convenient, saves time and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 for the present utility model Figure 1 is a schematic structural diagram of A-A in the present utility model.

[0021] In the figure: 1. Column; 2. Servo motor; 3. Inner arm pipeline; 4. Third rotary joint; 5. Spring cylinder balance mechanism; 6. Outer arm pipeline; 7. Laser detection and industrial imaging equipment; 8. Main connecting rod; 9. Sealing cap; 10. Vertical pipe; 11. Metal hose; 12. Vertical pipe return position control mechanism; 13. First reduction gearbox; 14: Third rotary joint; 15: Intelligent console; 16: First connecting plate; 17: Reinforcing beam; 18: Limiting plate; 19: Second reduction gearbox; 20: Inner arm connecting pipe; 21: Second rotary joint; 22: Outer arm connecting pipe; 23: Connecting rod; 24: Second connecting plate; 25: Third reduction gearbox; 26: Liquid inlet pipe; 27: Third connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0023] Embodiment: Please refer to Figure 1-2, the utility model provides a technical solution: a fully automatic loading arm, including a column 1, an inner arm pipe 3, an outer arm pipe 6, a vertical pipe 10, an intelligent control console 15, an inner arm connecting pipe 20 and an outer arm connecting pipe 22. The middle part of the column 1 is connected to a liquid inlet pipe 26 through a first connecting plate 16. The top of the liquid inlet pipe 26 is connected to the inner arm connecting pipe 20 through a first rotary joint 14. The first rotary joint 14 is used to realize the rotation of the inner arm connecting pipe 20. One side of the top of the inner arm connecting pipe 20 is welded to the inner arm pipe 3 to improve the stability performance. One end of the inner arm pipe 3 is connected to the outer arm connecting pipe 22 through a second rotary joint 21. The second rotary joint 21 is used to realize the rotation of the outer arm connecting pipe 22. The outer arm connecting pipe 22 is connected to the outer arm pipe 6 through a third rotary joint 4. The third rotary joint 4 is used to realize the rotation of the outer arm pipe 6. The outer arm pipe 6 is connected to the vertical pipe 10 through a fourth rotary joint. The fourth rotary joint is used to realize the rotation of the vertical pipe 10;

[0024] The top of the column 1 is welded to a second connecting plate 24. One end of the second connecting plate 24 is provided with a first reduction gearbox 13. The bottom of the first reduction gearbox 13 is connected to the inner arm connecting pipe 20. The first reduction gearbox 13 drives the inner arm connecting pipe 20 to rotate around the first rotary joint 14. Reinforcing beams 17 are welded on both the inner arm pipe 3 and the inner arm connecting pipe 20. One side of the bottom of the reinforcing beam 17 is provided with a second reduction gearbox 19 and a third reduction gearbox 25. The reinforcing beam 17 is used to improve the stability and also provides installation support for the second reduction gearbox 19 and the third reduction gearbox 25. One end of the third reduction gearbox 25 is connected to a connecting rod 23. The third reduction gearbox 25 drives the connecting rod 23 to rotate to realize the lifting of the outer arm pipe 6. The top of the second reduction gearbox 19 is connected to the outer arm connecting pipe 22. The second reduction gearbox 19 drives the outer arm connecting pipe 22 to rotate to realize the rotation of the outer arm pipe 6;

[0025] Servo motors 2 are installed on the first reduction gearbox 13, the second reduction gearbox 19 and the third reduction gearbox 25 through bolts. The servo motors 2 are used to drive the gears inside the first reduction gearbox 13, the second reduction gearbox 19 and the third reduction gearbox 25 to rotate.

[0026] A sealing cap 9 is installed on the vertical pipe 10. The sealing cap is used to seal the tank opening, so that the raw material is not easily volatilized from the tank opening, avoiding raw material loss and preventing environmental pollution. A metal hose 11 is connected to the sealing cap 9.

[0027] A vertical pipe return control mechanism 12 is connected to the third rotary joint 4 and the fourth rotary joint. The vertical pipe return control mechanism 12 is a U-shaped positioning connecting piece composed of a main connecting rod 8 and two sub-connecting rods. The main connecting rod 8 and the two sub-connecting rods are connected by a pin shaft. The sub-connecting rods are fixed to the third rotary joint 4 and the fourth rotary joint. A laser detection and industrial imaging device 7 is installed at one end of the main connecting rod 8. The vertical pipe return control mechanism 12 is used to keep the vertical pipe 10 in a vertically downward state, and the laser detection and industrial imaging device 7 is used to achieve rapid and accurate positioning.

[0028] The middle part of the outer arm pipe 6 is connected to the limit plate 18 on the third rotary joint 4 through a spring cylinder balance mechanism 5. A third connecting plate 27 is installed on the limit plate 18 by bolts. The third connecting plate 27 is movably connected to the connecting head at one end of the spring cylinder balance mechanism 5 through a pin shaft. The other end of the spring cylinder balance mechanism 5 is movably connected to the fixed frame in the middle of the outer arm pipe 6 through a pin shaft. A spring is installed inside the spring cylinder balance mechanism 5 to ensure the stability of the outer arm pipe 6 when it is lifted through the spring cylinder balance mechanism 5.

[0029] The first reduction gearbox 13 is installed on the second connecting plate 24 by bolts. The second reduction gearbox 19 and the third reduction gearbox 25 are installed on the mounting plate at the bottom of the strengthening beam 17 by bolts.

[0030] A first sealing plate is welded to the top of the inner arm connecting pipe 20. The first sealing plate is connected to the gear inside the first reduction gearbox 13 through a connecting shaft. The rotation of the gear inside the first reduction gearbox 13 drives the rotation of the inner arm connecting pipe 20 connected to the first sealing plate. A second sealing plate is welded to the bottom of the outer arm connecting pipe 22. The second sealing plate is connected to the gear inside the second reduction gearbox 19 through a connecting shaft. The rotation of the gear inside the second reduction gearbox 19 drives the rotation of the outer arm connecting pipe 22 connected to the second sealing plate. One end of the connecting rod 23 is connected to the gear inside the third reduction gearbox 25 through a connecting shaft. The other end of the connecting rod 23 is connected to the fixed frame at the bottom of the outer arm pipe 6 through a pin shaft. The rotation of the gear inside the third reduction gearbox 25 drives the rotation of the connecting rod 23 to lift the outer arm pipe 6.

[0031] The intelligent control console 15 is electrically connected to the servo motors 2 on the first reduction gearbox 13, the second reduction gearbox 19 and the third reduction gearbox 25. The intelligent control console 15 controls the servo motors 2 on the first reduction gearbox 13, the second reduction gearbox 19 and the third reduction gearbox 25 to be powered on and work respectively. The intelligent control console 15 is a PLC control console.

[0032] Working principle: A fully automatic loading arm can accurately locate the tank mouth by using a laser detection and industrial imaging device 7, so as to control the servo motor 2 on the first reduction gearbox 13 to make the inner arm connecting pipe 20 at one end of the inner arm pipe 3 rotate around the first rotary joint 14, thereby adjusting the position of the vertical pipe 10. Control the servo motor 2 on the second reduction gearbox 19 to make the outer arm pipe 6 rotate around the second rotary joint 21, thereby adjusting the position of the vertical pipe 10. Control the servo motor 2 on the third reduction gearbox 25 to make the outer arm pipe 6 rotate around the third rotary joint 4. When rotating, the spring cylinder balance mechanism 5, the limit plate 18 and the third connecting plate 27 limit the rotation angle of the outer arm pipe 6 and maintain stable performance. Use the vertical pipe return control mechanism 12 to keep the vertical pipe 10 always in a vertical state. Use the lifting and lowering of the outer arm pipe 6 to make the vertical pipe 10 insert into the tank mouth, and use the sealing cap 9 on the vertical pipe 10 to seal the tank mouth to prevent the raw materials from volatilizing from the tank mouth, and complete the full-automatic deployment and insertion.

[0033] The above embodiments only express the implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A fully automatic loading arm, comprising a column (1), an inner arm pipe (3), an outer arm pipe (6), a vertical pipe (10), an intelligent console (15), an inner arm connecting pipe (20) and an outer arm connecting pipe (22), characterized in that: The middle part of the column (1) is connected to the liquid inlet pipe (26) through the first connecting plate (16). The top of the liquid inlet pipe (26) is connected to the inner arm connecting pipe (20) through the first rotary joint (14). One side of the top of the inner arm connecting pipe (20) is welded to the inner arm pipe (3). One end of the inner arm pipe (3) is connected to the outer arm connecting pipe (22) through the second rotary joint (21). The outer arm connecting pipe (22) is connected to the outer arm pipe (6) through the third rotary joint (4). The outer arm pipe (6) is connected to the vertical pipe (10) through the fourth rotary joint; The top of the column (1) is welded to the second connecting plate (24). One end of the second connecting plate (24) is equipped with the first reduction gearbox (13). The bottom of the first reduction gearbox (13) is connected to the inner arm connecting pipe (20). Reinforcing beams (17) are welded on both the inner arm pipe (3) and the inner arm connecting pipe (20). One side of the bottom of the reinforcing beam (17) is equipped with the second reduction gearbox (19) and the third reduction gearbox (25). One end of the third reduction gearbox (25) is connected to the connecting rod (23). The top of the second reduction gearbox (19) is connected to the outer arm connecting pipe (22); Servo motors (2) are installed on the first reduction gearbox (13), the second reduction gearbox (19), and the third reduction gearbox (25) through bolts.

2. The fully automatic loading arm according to claim 1, characterized in that: A sealing cap (9) is installed on the vertical pipe (10). A metal hose (11) is connected to the sealing cap (9).

3. The fully automatic loading arm according to claim 1, characterized in that: A vertical pipe return control mechanism (12) is connected to the third rotary joint (4) and the fourth rotary joint. The vertical pipe return control mechanism (12) is a U-shaped positioning connector composed of a main connecting rod (8) and two sub-connecting rods. The main connecting rod (8) and the two sub-connecting rods are connected by a pin shaft. The sub-connecting rods are fixed on the third rotary joint (4) and the fourth rotary joint. One end of the main connecting rod (8) is equipped with a laser detection and industrial imaging device (7).

4. The fully automatic loading arm according to claim 1, characterized in that: The middle part of the outer arm pipe (6) is connected to the limit plate (18) on the third rotary joint (4) through the spring cylinder balance mechanism (5). A third connecting plate (27) is installed on the limit plate (18) through bolts. The third connecting plate (27) is movably connected to the connecting head at one end of the spring cylinder balance mechanism (5) through a pin shaft. The other end of the spring cylinder balance mechanism (5) is movably connected to the fixed frame in the middle of the outer arm pipe (6) through a pin shaft. A spring is installed inside the spring cylinder balance mechanism (5).

5. The fully automatic loading arm according to claim 1, wherein: The first reduction gearbox (13) is installed on the second connecting plate (24) through bolts. The second reduction gearbox (19) and the third reduction gearbox (25) are installed on the mounting plate at the bottom of the reinforcing beam (17) through bolts.

6. The fully automatic loading arm according to claim 1, characterized in that: A first sealing plate is welded to the top of the inner arm connecting pipe (20), and the first sealing plate is connected to the gear in the first reduction gearbox (13) through a connecting shaft. A second sealing plate is welded to the bottom of the outer arm connecting pipe (22), and the second sealing plate is connected to the gear in the second reduction gearbox (19) through a connecting shaft. One end of the connecting rod (23) is connected to the gear in the third reduction gearbox (25) through a connecting shaft, and the other end of the connecting rod (23) is connected to the fixing bracket at the bottom of the outer arm pipe (6) through a pin shaft.

7. The fully automatic loading arm according to claim 1, characterized in that: The intelligent console (15) is electrically connected to the servo motors (2) on the first reduction gearbox (13), the second reduction gearbox (19), and the third reduction gearbox (25).

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