Alignment loading arm

Abstract

The utility model relates to the technical field of crane pipes, and provides an alignment loading crane pipe which comprises a stand column, a rotating joint, an inner arm, a connecting arm, an outer arm and a vertical pipe, one end of the inner arm is in sealed rotating conduction with the rotating joint, the other end of the inner arm is in sealed rotating conduction with the connecting arm, one end of the outer arm is in sealed rotating conduction with the connecting arm, and the other end of the outer arm is in sealed rotating conduction with the vertical pipe. A first motor used for driving the inner arm to horizontally rotate is fixed to the stand column, a second motor used for driving the connecting arm to horizontally rotate is fixed to the inner arm, the connecting arm is rotationally connected with a third motor used for driving the outer wall to vertically swing, and an output shaft of the third motor is fixedly sleeved with a first connecting rod. The position of the vertical pipe is automatically and accurately adjusted through cooperation of the first motor, the second motor and the third motor, alignment connection of the vertical pipe and a tank car filling opening is achieved, the workload of workers is effectively relieved, the labor intensity is relieved, and the loading and unloading efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loading arms, and more particularly to a loading arm for alignment loading. Background Art

[0002] A loading arm is a telescopic and movable pipeline, which is widely used for liquid loading and unloading in fields such as oil and chemical terminals, such as oil and water. Compared with traditional hoses, loading arms have advantages such as higher safety and flexibility. A loading arm mainly consists of components such as a swivel joint, an inner arm, an outer arm, a vertical pipe, and a control system. The use of hard connections can effectively prevent dangerous situations such as pipe explosion and fracture, and has strong safety.

[0003] Currently, the loading and unloading of liquid media still needs to be completed by manual operation. During the loading and unloading process, the operator needs to manually and accurately align the vertical pipe of the loading arm with the filling port of the tank truck, and then open the pipeline valve system to start loading and unloading after confirmation. When the loading and unloading is completed, the pipeline valve system is closed to stop the operation, the vertical pipe is removed, and the loading arm is reset. This traditional manual operation method increases labor costs and work intensity, and there is also the danger of working at heights. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a loading arm for alignment loading, which solves the above technical problems, reduces labor intensity, and improves loading and unloading efficiency.

[0005] An embodiment of the utility model is realized by the following technical solutions: A loading arm for alignment loading includes a column, a swivel joint, an inner arm, a connecting arm, an outer arm, and a vertical pipe. One end of the inner arm is in sealed rotational communication with the swivel joint, the other end of the inner arm is in sealed rotational communication with the connecting arm, one end of the outer arm is in sealed rotational communication with the connecting arm, the other end of the outer arm is in sealed rotational communication with the vertical pipe. A first motor for driving the inner arm to rotate horizontally is fixed on the column, a second motor for driving the connecting arm to rotate horizontally is fixed on the inner arm, a third motor for driving the outer wall to swing vertically is rotatably connected to the connecting wall, a first connecting rod is sleeved on the output shaft of the third motor, the first connecting rod is hinged to a second connecting rod, and the second connecting rod is hinged to the outer arm.

[0006] Further, a telescopic cylinder is provided along the length direction of the vertical pipe, and a tray for blocking the pipe orifice of the vertical pipe is provided at the movable end of the telescopic cylinder.

[0007] Preferably, the movable end of the telescopic cylinder is connected with a guide rod arranged in parallel with the vertical pipe through a connecting plate. A transverse shaft rotatably connected to the end of the guide rod is arranged in the tray, and a torsion spring for driving the tray to reset and block the pipe orifice of the vertical pipe is sleeved on the transverse shaft.

[0008] Further, a horizontal support rod extends on the outer arm. The horizontal support rod is the hinge shaft of the second connecting rod and the outer arm, and a first pull rod is rotatably connected to the horizontal support rod. The first pull rod is hinged to a second pull rod, and the second pull rod is rotatably connected to the vertical pipe.

[0009] Further, the first motor and the inner arm are in a conical gear transmission that meshes with each other.

[0010] Further, the second motor and the connecting arm are in a conical gear transmission that meshes with each other.

[0011] Further, a support frame for structural strengthening is connected to the inner arm, and the second motor is installed on the support frame.

[0012] The utility model has at least the following advantages and beneficial effects: By driving the inner arm to rotate with the first motor, the first-stage horizontal outward turning or inward retracting is realized; by driving the connecting arm to rotate with the second motor, the second-stage horizontal outward turning or inward retracting is realized, so as to complete the outward extension and inward retraction of the vertical pipe; the third motor drives the first connecting rod to rotate, and acts on the outer arm through the second connecting rod to realize the up-and-down swing of the outer arm, and further realizes the adjustment of the vertical up-and-down movement of the vertical pipe, completes the alignment connection between the vertical pipe and the filling port of the tank car, reduces the labor intensity, and improves the loading and unloading efficiency. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0014] Figure 1 A schematic structural diagram of a loading and unloading arm for alignment loading provided by the present utility model;

[0015] Figure 2 A top view of a loading and unloading arm for alignment loading provided by the present utility model;

[0016] Figure 3 A connection diagram of the column, inner arm and connecting arm of a loading and unloading arm for alignment loading provided by the present utility model;

[0017] Figure 4 A schematic structural diagram of the closed state of the vertical pipe in a loading and unloading arm for alignment loading provided by the present utility model;

[0018] Figure 5 A schematic structural diagram of the open state of the vertical pipe in a loading and unloading arm for alignment loading provided by the present utility model;

[0019] Figure 6 A side view of the vertical pipe in a loading and unloading arm for alignment loading provided by the present utility model;

[0020] Icon: 1 - vertical column, 11 - first motor, 2 - rotary joint, 3 - inner arm, 30 - support frame, 31 - second motor, 4 - connecting arm, 41 - third motor, 5 - outer arm, 51 - horizontal support rod, 6 - vertical pipe, 71 - first connecting rod, 72 - second connecting rod, 73 - first pull rod, 74 - second pull rod, 8 - telescopic cylinder, 81 - connecting plate, 82 - guide rod, 9 - tray, 91 - horizontal axis, 92 - torsion spring. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment

[0024] As Figure 1-6As shown in the figure, in this embodiment, a loading and unloading articulated arm for alignment is mainly disclosed. Its main structure includes a column 1, a rotary joint 2, an inner arm 3, a connecting arm 4, an outer arm 5, and a vertical pipe 6. One end of the inner arm 3 is in sealed rotational communication with the rotary joint 2, and the other end of the inner arm 3 is in sealed rotational communication with the connecting arm 4. One end of the outer arm 5 is in sealed rotational communication with the connecting arm 4, and the other end of the outer arm 5 is in sealed rotational communication with the vertical pipe 6. A first motor 11 for driving the horizontal rotation of the inner arm 3 is fixed to the column 1. A second motor 31 for driving the horizontal rotation of the connecting arm 4 is fixed to the inner arm 3. The connecting wall is rotatably connected with a third motor 41 for driving the vertical swing of the outer arm 5. A first connecting rod 71 is sleeved on the output shaft of the third motor 41. The first connecting rod 71 is hinged with a second connecting rod 72, and the second connecting rod 72 is hinged with the outer arm 5. Specifically, the rotary joint 2 is rotatably connected with the inner arm 3, the inner arm 3 is rotatably connected with the connecting arm 4, the connecting arm 4 is rotatably connected with the outer arm 5, and the outer arm 5 is rotatably connected with the vertical pipe 6 through sealed flanges. The column 1 is stably fixed on the platform. The rotary joint 2 is communicated with the transported liquid medium, and a switching valve is arranged in the middle. The liquid medium flows through the rotary joint 2, the inner arm 3, the connecting wall, the outer arm 5, and the vertical pipe 6 in sequence, and finally the vertical pipe 6 is aligned with the filling port of the tank truck for liquid loading and unloading. The first motor 11 drives the rotation of the inner arm 3 to realize the first-stage horizontal outward turning or inward retraction of the articulated arm. At the same time, the second motor 31 moves along with the inner wall. The second motor 31 drives the rotation of the connecting arm 4 to realize the second-stage horizontal outward turning or inward retraction of the articulated arm. At the same time, the third motor 41 rotates synchronously with the connecting arm 4, so as to complete the outward extension and inward retraction of the vertical pipe 6. The third motor 41 drives the rotation of the first connecting rod 71 and acts on the outer arm 5 through the second connecting rod 72 to realize the up and down swing of the outer arm 5, and further realize the adjustment of the vertical up and down movement of the vertical pipe 6. Through the cooperation of the first motor 11, the second motor 31, and the third motor 41, the position of the vertical pipe 6 is automatically and accurately adjusted to realize the alignment connection between the vertical pipe 6 and the filling port of the tank truck, effectively reducing the operation burden of the staff, lowering the labor intensity, and improving the loading and unloading efficiency.

[0025] Furthermore, in specific implementation, as Figure 1 、 4As shown in FIG. -6, in the above-mentioned vertical pipe 6 provided in the embodiment of the present utility model, a telescopic cylinder 8 is provided along the pipe length direction, and a tray 9 for blocking the pipe orifice of the vertical pipe 6 is provided at the movable end of the telescopic cylinder 8; specifically, the movable end of the telescopic cylinder 8 is connected with a guide rod 82 arranged in parallel with the vertical pipe 6 through a connecting plate 81. A transverse shaft 91 rotatably connected to the end of the guide rod 82 is arranged in the tray 9, and a torsion spring 92 for driving the tray 9 to reset and block the pipe orifice of the vertical pipe 6 is sleeved on the transverse shaft 91; it should be noted that the telescopic cylinder 8 can adopt a linear cylinder, and the stroke of the telescopic cylinder 8 should be greater than the length that the vertical pipe 6 can extend into the tank car to avoid collision between the tray 9 and the filling port of the tank car; when opening, the telescopic cylinder 8 retracts upward. Under the upward pulling force of the telescopic cylinder 8, the tray 9 overcomes the elastic force of the torsion spring 92 and the friction force between the tray 9 and the outer wall 5 of the vertical pipe 6. First, the tray 9 turns downward around the transverse shaft 91, compresses the torsion spring 92, and gradually opens the pipe orifice of the vertical pipe 6. Subsequently, the tray 9 is pulled upward to make the tray 9 a certain distance away from the pipe orifice of the vertical pipe 6; when closing, the telescopic cylinder 8 extends downward, the tray 9 moves downward. After approaching the pipe orifice of the vertical pipe 6, the tray 9 gradually turns upward under the elastic reset action of the torsion spring 92 and tightly buckles on the pipe orifice of the vertical pipe 6 to prevent liquid leakage.

[0026] Further, in specific implementation, as Figure 1 、 4 、FIG. 5 shows that a horizontal support rod 51 extends on the above-mentioned outer arm 5 provided in the embodiment of the present utility model. The horizontal support rod 51 is the hinge shaft of the second connecting rod 72 and the outer arm 5, and a first pull rod 73 is rotatably connected to the horizontal support rod 51. The first pull rod 73 is hinged with a second pull rod 74, and the second pull rod 74 is rotatably connected to the vertical pipe 6. Specifically, on the one hand, the horizontal support rod 51 serves as the hinge shaft of the second connecting rod 72, and indirectly realizes the up and down swing of the outer arm 5 through the third motor 41 and the first connecting rod 71. On the other hand, as the hinge shaft of the first pull rod 73, it indirectly acts on the vertical pipe 6, so that the vertical pipe 6 can maintain vertical stability and will not shake.

[0027] Further, in specific implementation, as Figure 1-3 shows, in the above-mentioned first motor 11 and the inner arm 3 provided in the embodiment of the present utility model, they are in a meshing bevel gear transmission, and in addition, the second motor 31 and the connecting arm 4 are in a meshing bevel gear transmission to realize a gear transmission with phase change.

[0028] Further, in specific implementation, as Figure 1 、 3 shows, in the above-mentioned inner arm 3 provided in the embodiment of the present utility model, a support frame 30 for structural strengthening is connected. The second motor 31 is installed on the support frame 30. Since the inner arm 3 bears the hanging weights of the connecting arm 4, the outer arm 5 and the vertical pipe 6, the support frame 30 is welded on the inner arm 3 to prevent the inner wall from being bent by force. The second motor 31 is horizontally installed on the support frame 30 and stably acts on the connecting arm 4 to drive the connecting wall to rotate horizontally.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A positioning loading crane pipe, comprising a column (1), a rotary joint (2), an inner arm (3), a connecting arm (4), an outer arm (5) and a vertical pipe (6), wherein one end of the inner arm (3) is in sealed rotational communication with the rotary joint (2), the other end of the inner arm (3) is in sealed rotational communication with the connecting arm (4), one end of the outer arm (5) is in sealed rotational communication with the connecting arm (4), and the other end of the outer arm (5) is in sealed rotational communication with the vertical pipe (6), characterized in that: The column (1) is fixed with a first motor (11) for driving the inner arm (3) to rotate horizontally, the inner arm (3) is fixed with a second motor (31) for driving the connecting arm (4) to rotate horizontally, the connecting arm (4) is fixed with a third motor (41) for driving the outer arm (5) to swing vertically, the output shaft of the third motor (41) is sleeved with a first connecting rod (71), the first connecting rod (71) is hinged with a second connecting rod (72), and the second connecting rod (72) is hinged with the outer arm (5).

2. A counter-loading crane pipe as claimed in claim 1, characterized in that: The vertical pipe (6) is provided with a telescopic cylinder (8) along the length direction of the pipe, and the movable end of the telescopic cylinder (8) is provided with a tray (9) for sealing the pipe opening of the vertical pipe (6).

3. A counter-loading crane pipe as claimed in claim 2, characterized in that: The movable end of the telescopic cylinder (8) is connected to a guide rod (82) arranged parallel to the vertical tube (6) through a connecting plate (81); a transverse shaft (91) rotatably connected to the end of the guide rod (82) is provided in the tray (9); a torsion spring (92) for driving the tray (9) to reset and block the tube opening of the vertical tube (6) is sleeved on the transverse shaft (91).

4. A counter-loading crane pipe as claimed in claim 1, characterized in that: A horizontal support rod (51) extends from the outer arm (5), and the horizontal support rod (51) is the hinge axis between the second connecting rod (72) and the outer arm (5), and a first pull rod (73) is rotatably connected to the horizontal support rod (51), and the first pull rod (73) is hinged to a second pull rod (74), and the second pull rod (74) is rotatably connected to the vertical tube (6).

5. The positioning loading crane pipe according to claim 1, characterized in that: The first motor (11) and the inner arm (3) are driven by mutually meshing bevel gears.

6. The positioning loading crane pipe according to claim 1, characterized in that: The second motor (31) and the connecting arm (4) are driven by mutually meshing bevel gears.

7. The positioning loading crane pipe according to claim 1, characterized in that: The inner arm (3) is connected to a support frame (30) for structural reinforcement, and the second motor (31) is mounted on the support frame (30).

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