Automatically aligned top-off loading train swivel

Abstract

The utility model relates to the technical field of crane pipe, disclose automatic alignment's top loading and unloading train crane pipe, and the liquid inlet pipe is connected with the special vertical pipe of train, and the linear motion part is rotatably connected between the stand, the linear motion part is connected with the output end of rotating mechanism, and the linear motion part is connected with the special vertical pipe of train through Z axis motion part, and the tank mouth position is identified through the automatic identification tank mouth equipment, and the three -dimensional motion adjustment of linear motion part, rotating mechanism, Z axis motion part is combined, realizes the full -automatic accurate alignment of vertical pipe and train tank mouth, replaces manual operation completely, promotes efficiency and security, the stand is used for supporting whole crane pipe system, and the integrated liquid inlet pipe, motion part and vertical pipe are compact and stable, and the limited space of platform is adapted, all motion parts and control system electric connection realize one -key start -stop, remote monitoring and fault diagnosis, reduce the operation complexity, the problem that train crane pipe exists in manual loading is solved low efficiency and the security risk.

Description

Technical Field

[0001] This utility model relates to the technical field of loading arms, and more specifically, to top-loading and unloading loading arms for trains with automatic alignment. Background Technology

[0002] A loading arm is a device used to transfer liquid or gas products between ground equipment and train tank cars.

[0003] Currently, the loading and unloading of liquids on top of train tank cars mainly relies on manual operation of the loading arms, which has three major drawbacks:

[0004] Safety hazards: Operators need to be in close contact with corrosive / toxic liquids (such as sulfuric acid, liquid alkali);

[0005] Inefficient: Each alignment takes ≥5 minutes and is affected by the skill level of the personnel;

[0006] Insufficient precision: Manual alignment errors often lead to liquid splashing, which can easily increase the accident rate. Utility Model Content

[0007] The purpose of this invention is to provide an automatically aligned top loading and unloading arm for trains, aiming to solve the problems of low efficiency and safety risks in manual loading of train arms in the prior art.

[0008] This utility model is an automatic alignment top loading and unloading train arm that includes a column fixed on the platform, a liquid inlet pipe connected to the column, a linear motion component, a rotating mechanism, a Z-axis motion component, a train-specific vertical pipe, a liquid receiving mechanism, and an automatic tank opening identification device. The automatic tank opening identification device is connected to the column, and the automatic tank opening identification device, linear motion component, rotating mechanism, and Z-axis motion component are electrically connected to the control system.

[0009] The inlet pipe is connected to the train-specific vertical pipe, the linear motion component is rotatably connected to the column, the linear motion component is connected to the output end of the rotating mechanism, the linear motion component is connected to the train-specific vertical pipe through the Z-axis motion component, and the liquid receiving mechanism is connected to one side of the Z-axis motion component and arranged adjacent to the train-specific vertical pipe.

[0010] Furthermore, the train-specific vertical pipe includes a wire retractor, a liquid inlet, an outer sleeve, a middle sleeve, an inner sleeve, a train sealing cap, a hydraulic oil displacement pump, and two hydraulic lines. The upper end of the outer sleeve is connected to the liquid inlet, and the lower end of the outer sleeve is connected to the train sealing cap. The bottom end of the train sealing cap is provided with a sealing ring for sealing connection with the tank opening of the train tank car. The middle sleeve is fitted inside the outer sleeve and can extend and retract relative to the outer sleeve. The inner sleeve is fitted inside the middle sleeve and can extend and retract relative to the middle sleeve. The outer sleeve, middle sleeve, and inner sleeve are coaxially fitted in sequence to form a retractable fluid channel. Sliding sealing structures are provided between the outer sleeve and the middle sleeve, and between the middle sleeve and the inner sleeve, respectively.

[0011] The wire rope winding and unwinding machine is connected to the inner sleeve via a wire rope, used to drive the extension and retraction of the middle sleeve and the inner sleeve; the hydraulic oil displacement pump is located at the outlet end of the inner sleeve, used to realize submersible loading and unloading; the two hydraulic lines are respectively the inlet pipe for supplying hydraulic fluid into the hydraulic oil displacement pump and the outlet pipe for supplying hydraulic fluid out of the hydraulic oil displacement pump, the inlet pipe and the outlet pipe respectively pass through both sides of the train sealing cap and are connected to both sides of the hydraulic oil displacement pump, used to provide hydraulic power to the hydraulic oil displacement pump; the hydraulic oil displacement pump is connected to the hydraulic station via hydraulic lines.

[0012] Furthermore, the hydraulic oil displacement pump includes a hydraulic motor, a pump body, and a delivery pipe. The hydraulic motor is connected to the top of the pump body, and the bottom of the pump body is provided with multiple inlet and outlet pipes, which are arranged at intervals around the bottom of the pump body. The pump body is connected to the outlet end of the inner sleeve through the delivery pipe, and the hydraulic lines are connected to both sides of the hydraulic motor to provide hydraulic power to the hydraulic motor.

[0013] The hydraulic pipeline includes a fixed pipe and a telescopic inner pipe. The upper end of the fixed pipe extends along the height direction of the outer sleeve. The outer sleeve is connected to the upper end of the fixed pipe through a pipe clamp. The lower end of the fixed pipe passes through the train sealing cap and is exposed below the train sealing cap. The telescopic inner pipe is inserted inside the fixed pipe and can telescopically move relative to the fixed pipe. The fixed pipe is connected to the hydraulic motor through the telescopic inner pipe.

[0014] Furthermore, the outer sleeve has a hollow inner cavity, and two inner sleeve limiting rings protrude inward from the bottom opening of the inner cavity to restrict the movement distance of the inner sleeve. An outer sealing area is formed between the two inner sleeve limiting rings at a vertical interval, and an outer sealing wear-resistant ring is installed in the outer sealing area, which slides against the outer wall of the inner sleeve. The inner sleeve also has a hollow inner cavity, and two inner sleeve limiting rings protrude inward from the bottom opening of the inner cavity to restrict the movement distance of the inner sleeve. An inner sealing area is formed between the two inner sleeve limiting rings at a vertical interval, and an inner sealing wear-resistant ring is installed in the inner sealing area, which slides against the outer wall of the inner sleeve.

[0015] Two tube abutment rings are provided on the outer periphery of the upper end of the middle sleeve. A tube mounting groove is formed between the two tube abutment rings at a vertical interval. A tube wear-resistant ring is installed in the tube mounting groove. The tube wear-resistant ring is in movable contact with the inner wall of the outer tube cavity. The tube abutment ring and the tube limiting ring are arranged vertically opposite to each other.

[0016] The upper outer periphery of the inner sleeve is provided with two inner tube abutment rings protruding outwards. The two inner tube abutment rings are vertically spaced apart to form an inner tube mounting groove. An inner tube wear-resistant ring is installed in the inner tube mounting groove. The inner tube wear-resistant ring is in movable contact with the inner side wall of the inner cavity of the middle tube. The inner tube abutment ring and the inner tube limiting ring are arranged vertically opposite to each other.

[0017] The sliding sealing structure is formed between the two middle tube abutment rings and the middle tube wear-resistant ring, and between the two inner tube abutment rings and the inner tube wear-resistant ring.

[0018] Furthermore, the wire winding and unwinding machine includes a drive motor, a drum, and a wire rope; the drive motor is connected to the drum via a motor shaft, one end of the wire rope is connected to the drum, and the other end of the wire rope is connected to the bottom of the inner sleeve; the drive motor of the wire winding and unwinding machine is an explosion-proof motor.

[0019] Furthermore, the automatic can opening identification device includes an image acquisition unit and a processor unit. The image acquisition unit is used to acquire images containing the can opening, and the processor unit is used to process the images and calculate the position coordinates of the can opening. The automatic can opening identification device also includes an illumination device to provide supplementary lighting for the image acquisition unit.

[0020] Furthermore, the linear motion component includes a horizontal frame, which is rotatably connected to the column. The bottom of the horizontal frame engages with the output end of the rotating mechanism. A linear track for horizontal sliding of the Z-axis motion component is mounted on the horizontal frame, and a linear motor for driving the Z-axis motion component to move horizontally is connected to the linear track.

[0021] Furthermore, the Z-axis moving component includes a movable frame mounted on a linear track, a Z-axis track installed in the movable frame, an electric push rod for driving the Z-axis movement of the train-specific vertical tube installed in the Z-axis track, a movable head connected to a Z-axis motor on the Z-axis track, the movable head connected to the train-specific vertical tube via a buffer column, the lower part of the buffer column extending from top to bottom through the top of the movable head and protruding below the bottom of the movable head, a return spring sleeved on the lower part of the buffer column, the two ends of the return spring respectively abutting against the movable head and the train-specific vertical tube, a limit sensor connected to the top of the movable head, the limit sensor being vertically opposite to the upper part of the buffer column.

[0022] Furthermore, the liquid receiving mechanism includes a servo motor, which is mounted on the side wall of the movable frame. A rotating rod is connected to the servo motor, and a liquid receiving hopper is connected to the bottom of the rotating rod.

[0023] Furthermore, the rotating mechanism includes a rotary motor that drives the horizontal frame to rotate. The rotary motor is mounted on the column, and the output end of the rotary motor meshes with the bottom of the horizontal frame.

[0024] Compared with existing technologies, the automatic alignment top loading and unloading arm provided by this utility model identifies the position of the tank opening through an automatic tank opening recognition device. Combined with the three-dimensional motion adjustment of linear motion components, rotating mechanisms, and Z-axis motion components, it achieves fully automatic and precise alignment of the vertical pipe with the train tank opening, completely replacing manual operation and improving efficiency and safety. The column serves as the core support, supporting the entire loading arm system and integrating the liquid inlet pipe, moving components, and vertical pipe. It has a compact structure and high stability, adapting to the limited space of the platform. The liquid receiving mechanism is arranged adjacent to the vertical pipe, which can collect residual liquid during the loading and unloading process in a timely manner, avoiding chemical liquid pollution of the environment and achieving anti-drip protection. All moving components are electrically connected to the control system, realizing one-button start / stop, remote monitoring, and fault diagnosis, reducing operational complexity. It solves the problems of low efficiency and safety risks in manual loading of train loading arms. Attached Figure Description

[0025] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the automatically aligned top loading and unloading train arm provided by this utility model;

[0026] Figure 2 This is a side perspective three-dimensional schematic diagram of the automatically aligned top loading and unloading train arm provided by this utility model;

[0027] Figure 3 This is a utility model Figure 2 A magnified structural diagram of A in the middle;

[0028] Figure 4 This is a three-dimensional schematic diagram of the special vertical tube for trains provided by this utility model;

[0029] Figure 5 This is a cross-sectional structural diagram of the special vertical pipe for trains provided by this utility model;

[0030] Figure 6 This is a utility model Figure 5 A magnified structural diagram of B in the diagram;

[0031] Figure 7 This is a utility model Figure 5 A magnified structural diagram of C.

[0032] In the diagram: Column 10, Inlet pipe 20, Linear motion component 30, Rotating mechanism 40, Z-axis motion component 50, Train-specific vertical pipe 60, Liquid receiving mechanism 70, Automatic tank opening identification device 80, Horizontal frame 31, Linear track 32, Linear motor 33, Moving frame 51, Z-axis track 52, Electric push rod 53, Moving head 54, Buffer column 55, Return spring 56, Limit sensor 57, Wire winding and unwinding machine 61, Outer sleeve 62, Middle sleeve 63, Inner sleeve 64, Train sealing cap 65, Hydraulic oil pump 6 6. Hydraulic pipeline 67. Wire rope 611. Drive motor 612. Drum 613. Middle tube limit ring 621. Outer sealing wear-resistant ring 622. Pipe clamp 623. Inner tube limit ring 631. Inner sealing wear-resistant ring 632. Middle tube abutment ring 633. Middle tube wear-resistant ring 634. Inner tube abutment ring 641. Inner tube wear-resistant ring 642. Hydraulic motor 661. Pump body 662. Infusion pipe 663. Inlet and outlet pipes 664. Fixed pipe 671. Telescopic inner pipe 672. Servo motor 71. Rotating rod 72. Liquid receiving hopper 73. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0035] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] Reference Figure 1-7 The image shown is a preferred embodiment of the present invention.

[0037] The automatic alignment top loading and unloading arm for trains includes a column 10 fixed on the platform, an inlet pipe 20 connected to the column 10, a linear motion component 30, a rotating mechanism 40, a Z-axis motion component 50, a train-specific vertical pipe 60, a liquid receiving mechanism 70, and an automatic tank opening identification device 80. The automatic tank opening identification device 80 is connected to the column 10, and the automatic tank opening identification device 80, the linear motion component 30, the rotating mechanism 40, and the Z-axis motion component 50 are electrically connected to the control system.

[0038] The liquid inlet pipe 20 is connected to the train-specific vertical pipe 60. The linear motion component 30 is rotatably connected to the column 10. The linear motion component 30 is connected to the output end of the rotating mechanism 40. The linear motion component 30 is connected to the train-specific vertical pipe 60 through the Z-axis motion component 50. The liquid receiving mechanism 70 is connected to one side of the Z-axis motion component 50 and is arranged adjacent to the train-specific vertical pipe 60.

[0039] The aforementioned automatically aligned top loading and unloading arm for trains uses an automatic tank opening identification device 80 to identify the tank opening position. Combined with the three-dimensional motion adjustment of the linear motion component 30, the rotating mechanism 40, and the Z-axis motion component 50, it achieves fully automatic and precise alignment of the vertical pipe with the train tank opening, completely replacing manual operation and improving efficiency and safety. The column 10 serves as the core support, supporting the entire loading arm system and integrating the liquid inlet pipe 20, moving components, and vertical pipe. It has a compact structure and high stability, adapting to the limited space of the platform. The liquid receiving mechanism 70 is arranged adjacent to the vertical pipe, which can collect residual liquid during the loading and unloading process in a timely manner, avoiding chemical liquid pollution of the environment and achieving anti-drip protection. All moving components are electrically connected to the control system, realizing one-button start / stop, remote monitoring, and fault diagnosis, reducing operational complexity. It solves the problems of low efficiency and safety risks in manual loading of train loading arms.

[0040] In this embodiment, the train-specific vertical pipe 60 includes a wire retractor 61, a liquid inlet, an outer sleeve 62, a middle sleeve 63, an inner sleeve 64, a train sealing cap 65, a hydraulic oil pump 66, and two hydraulic lines 67. The upper end of the outer sleeve 62 is connected to the liquid inlet, and the lower end of the outer sleeve 62 is connected to the train sealing cap 65. The bottom end of the train sealing cap 65 is provided with a sealing ring for sealing connection with the tank opening of the train tank car. The middle sleeve 63 is fitted inside the outer sleeve 62 and can extend and retract relative to the outer sleeve 62. The inner sleeve 64 is fitted inside the middle sleeve 63 and can extend and retract relative to the middle sleeve 63. The outer sleeve 62, middle sleeve 63, and inner sleeve 64 are coaxially fitted in sequence to form a retractable fluid channel. Sliding sealing structures are provided between the outer sleeve 62 and the middle sleeve 63, and between the middle sleeve 63 and the inner sleeve 64, respectively.

[0041] The wire rope winding and unwinding machine 61 is connected to the inner sleeve 64 via the wire rope 611, which is used to drive the extension and retraction of the middle sleeve 63 and the inner sleeve 64; the hydraulic oil pump 66 is located at the outlet end of the inner sleeve 64, which is used to realize submerged loading and unloading; the two hydraulic lines 67 are respectively the inlet pipe 20 for supplying hydraulic fluid into the hydraulic oil pump 66 and the outlet pipe for supplying hydraulic fluid out of the hydraulic oil pump 66. The inlet pipe 20 and the outlet pipe pass through both sides of the train sealing cap 65 and are connected to both sides of the hydraulic oil pump 66, which are used to provide hydraulic power to the hydraulic oil pump 66; the hydraulic oil pump 66 is connected to the hydraulic station via the hydraulic lines 67.

[0042] The retractable vertical tube structure features a three-layer nested design consisting of an outer sleeve 62, a middle sleeve 63, and an inner sleeve 64. This allows the length of the vertical tube to adapt to different heights of train tank cars, making it widely applicable.

[0043] Double sealing protection: The sealing ring at the bottom of the train sealing cap 65 achieves a first-level seal at the tank opening; the sliding sealing structure between the sleeves prevents liquid leakage and improves safety.

[0044] Submersible loading and unloading technology: The hydraulic oil displacement pump 66 is placed at the outlet end of the inner sleeve 64 and is directly inserted into the liquid surface of the tank truck to carry out submersible loading and unloading, which greatly reduces the risks of evaporation and static electricity.

[0045] Hydraulic power integration:

[0046] Hydraulic lines 67 are laid on both sides of the sealing cap and directly connected to the hydraulic oil pump 66, ensuring stable power transmission and preventing the lines from getting tangled.

[0047] High-efficiency drive design: The wire rope winding and unwinding machine 61 drives the sleeve to extend and retract through the wire rope 611, which is lighter in structure and has lower maintenance costs than hydraulic / pneumatic solutions.

[0048] In this embodiment, the hydraulic oil displacement pump 66 includes a hydraulic motor 661, a pump body 662, and a delivery pipe 663. The hydraulic motor 661 is connected to the top of the pump body 662. The bottom of the pump body 662 is provided with multiple inlet and outlet pipes 664, which are arranged circumferentially around the bottom of the pump body 662. The pump body 662 is connected to the outlet end of the inner sleeve 64 through the delivery pipe 663. Hydraulic lines 67 are connected to both sides of the hydraulic motor 661 to provide hydraulic power to the hydraulic motor 661.

[0049] The hydraulic line 67 includes a fixed pipe 671 and a telescopic inner pipe 672. The upper end of the fixed pipe 671 extends along the height direction of the outer sleeve 62. The outer sleeve 62 is connected to the upper end of the fixed pipe 671 through a pipe clamp 623. The lower end of the fixed pipe 671 passes through the train sealing cap 65 and is exposed below the train sealing cap 65. The telescopic inner pipe 672 is inserted inside the fixed pipe 671 and can telescopically move relative to the fixed pipe 671. The fixed pipe 671 is connected to the hydraulic motor 661 through the telescopic inner pipe 672.

[0050] High-efficiency hydraulic pump layout: The hydraulic motor 661 is connected to the top of the pump body 662, and the multi-directional inlet and outlet pipes 664 at the bottom are designed to improve the liquid throughput efficiency; the pump body 662 is directly connected to the inner sleeve 64 through the delivery pipe 663 to optimize the fluid path.

[0051] Dynamic adaptation of hydraulic pipeline 67: The combination design of fixed pipe 671 and telescopic inner pipe 672 adjusts the length synchronously with the extension and retraction of the vertical pipe, ensuring a continuous and stable supply of hydraulic power and avoiding pipeline breakage or leakage due to the extension and retraction of the vertical pipe.

[0052] In this embodiment, the outer sleeve 62 has a hollow inner cavity. Two inner sleeve limiting rings 621 protrude inwards from the bottom opening of the outer sleeve cavity to restrict the movement distance of the inner sleeve 63. An outer sealing area is formed between the two inner sleeve limiting rings 621, which are vertically spaced apart. An outer sealing wear-resistant ring 622 is installed in the outer sealing area, and the outer sealing wear-resistant ring 622 slides against the outer wall of the inner sleeve 63. The inner sleeve 63 has a hollow inner cavity. Two inner sleeve limiting rings 631 protrude inwards from the bottom opening of the inner sleeve cavity to restrict the movement distance of the inner sleeve 64. An inner sealing area is formed between the two inner sleeve limiting rings 631, which are vertically spaced apart. An inner sealing wear-resistant ring 632 is installed in the inner sealing area, and the inner sealing wear-resistant ring 632 slides against the outer wall of the inner sleeve 64.

[0053] Precise positioning and protection: The limiting rings (middle tube limiting ring 621 and inner tube limiting ring 631) at the bottom of the outer sleeve 62 and the middle sleeve 63 precisely limit the movement of the middle sleeve 63 and the inner sleeve 64, preventing the sleeve from excessively extending or retracting, which could cause mechanical damage or detachment.

[0054] Effective dynamic sealing: Wear-resistant sealing rings (outer wear-resistant sealing ring 622, inner wear-resistant sealing ring 632) are installed in the sealing area (outer sealing area, inner sealing area) formed between the limiting rings, and slide against the outer wall of the adjacent sleeve; this ensures that the gap between each layer of sleeve remains effectively sealed during the expansion and contraction of the sleeve, preventing liquid from leaking out from between the pipe walls.

[0055] Extended service life: The sealing ring is made of wear-resistant material, which significantly improves its durability under repeated friction in liquid media, reducing leakage caused by wear and the frequency of equipment maintenance.

[0056] Two tube abutment rings 633 are provided on the outer periphery of the upper end of the sleeve 63. The two tube abutment rings 633 are vertically spaced apart to form a tube mounting groove. A tube wear-resistant ring 634 is installed in the tube mounting groove. The tube wear-resistant ring 634 is in movable contact with the inner wall of the outer tube cavity. The tube abutment rings 633 and the tube limiting ring 621 are arranged vertically opposite each other.

[0057] The upper outer periphery of the inner sleeve 64 is provided with two inner tube abutment rings 641 protruding outward. The two inner tube abutment rings 641 are vertically spaced apart to form an inner tube mounting groove. An inner tube wear-resistant ring 642 is installed in the inner tube mounting groove. The inner tube wear-resistant ring 642 is in movable contact with the inner side wall of the inner cavity of the middle tube. The inner tube abutment rings 641 and the inner tube limiting ring 631 are arranged vertically opposite each other.

[0058] The two middle tube abutment rings 633 and the middle tube wear-resistant ring 634, and the two inner tube abutment rings 641 and the inner tube wear-resistant ring 642 respectively form sliding sealing structures.

[0059] Enhanced guidance and stability: A wear-resistant ring 634 is installed in the mounting groove between the middle tube abutment rings 633, and the wear-resistant ring 634 moves against the inner wall of the outer tube cavity; an inner tube wear-resistant ring 642 is installed in the mounting groove between the inner tube abutment rings 641, and the inner tube wear-resistant ring 642 moves against the inner wall of the middle tube cavity; these wear-resistant rings (middle tube wear-resistant ring 634 and inner tube wear-resistant ring 642) act as radial guide bearings.

[0060] Preventing radial sway: The wear-resistant ring effectively limits the radial sway and eccentricity of the bushing, ensuring that the multi-layer bushing remains basically coaxial during expansion and contraction, improving operational stability and accuracy, and preventing the sealing ring from wearing out or jamming due to eccentricity.

[0061] Share radial load: Bear the lateral forces that the casing may be subjected to (such as slight shaking that may occur during loading).

[0062] Replaceable wear parts: The wear ring is an independent component installed in the groove. It can be easily replaced after wear, resulting in low maintenance costs and avoiding the need to replace the entire sleeve.

[0063] Protecting the core structure: The wear-resistant ring wears faster than the abutment ring body, thus protecting both the abutment ring and the pipe wall body.

[0064] In this embodiment, the wire rope winding and unwinding machine 61 is equipped with a torque sensor or a current detection device to monitor the load torque or motor operating current of the driving wire rope 611 in real time; when the end of the hydraulic oil pump 66 contacts the liquid surface, causing the load to increase, the torque or current change signal is used to determine that the outlet has reached the liquid surface and control the extension to stop.

[0065] Intelligent liquid level detection and positioning: The load torque of the wire rope 611 or the current of the drive motor 612 is monitored in real time using a torque sensor or current detection device. When the hydraulic oil pump 66 at the end of the inner sleeve 64 contacts the liquid surface, the resistance (load) suddenly increases, causing a significant increase in torque or current. After detecting this change signal, the system can automatically determine that the hydraulic oil pump 66 has reached the liquid surface position and immediately control the wire rope reel 61 to stop extending.

[0066] Automatic and precise control of immersion depth: ensures that the hydraulic oil replacement pump 66 stops at a position that is just in contact with or slightly below the liquid surface (according to the set logic), achieving the best submerged loading effect (ensuring submerged liquid discharge while avoiding excessive insertion that would cause unnecessary resistance or equipment stress).

[0067] Enhanced automation and safety: Completely eliminates the need for manual observation and judgment of liquid levels, making operation more convenient, precise, and safe. Prevents equipment overload damage or wire rope 611 loosening due to excessive insertion.

[0068] In this embodiment, the wire winding and unwinding machine 61 includes a drive motor 612, a drum 613, and a wire rope 611; the drive motor 612 is connected to the drum 613 via a motor shaft, one end of the wire rope 611 is connected to the drum 613, and the other end of the wire rope 611 is connected to the bottom of the inner sleeve 64; the drive motor 612 of the wire winding and unwinding machine 61 is an explosion-proof motor.

[0069] Enhanced inherent safety: When loading operations are carried out in flammable and explosive hazardous locations such as petroleum and chemical plants, the use of explosion-proof motors is a mandatory requirement; this design effectively prevents electrical sparks and high temperatures generated during motor operation from igniting the surrounding explosive environment, greatly improving the inherent safety level of the equipment when used in hazardous areas and complying with safety regulations.

[0070] Ensuring operational safety is the key foundation for the safe operation of the entire set of equipment.

[0071] A reliable drive solution is provided: the core components of the wire rope winding and unwinding machine 61 are defined: the drive motor 612 provides power, the drum 613 winds the wire rope 611, one end of the wire rope 611 is fixed on the drum 613, and the other end is connected to the bottom of the inner sleeve 64; this is the most direct, reliable and mature mechanical transmission method to realize the extension and retraction of the sleeve.

[0072] The force transmission path is clear: the wire rope 611 directly pulls the innermost sleeve (inner sleeve 64), and the inner sleeve 64 drives the middle sleeve (middle sleeve 63) to move, which is simple and efficient.

[0073] In this embodiment, the automatic can opening identification device 80 includes an image acquisition unit and a processor unit. The image acquisition unit is used to acquire images containing the can opening, and the processor unit is used to process the images and calculate the position coordinates of the can opening. The automatic can opening identification device 80 also includes an illumination device to provide supplementary light for the image acquisition unit.

[0074] High-precision recognition: The image acquisition unit, combined with the lighting device, adapts to dim environments and accurately locates the coordinates of the tank opening.

[0075] Intelligent control basics: The processor unit feeds back coordinate data to the control system, driving the moving parts to automatically align.

[0076] In this embodiment, the linear motion component 30 includes a horizontal frame 31, which is rotatably connected to the column 10. The bottom of the horizontal frame 31 is engaged with the output end of the rotating mechanism 40. A linear track 32 for horizontal sliding of the Z-axis motion component 50 is installed on the horizontal frame 31. A linear motor 33 for driving the Z-axis motion component 50 to move horizontally is connected to the linear track 32.

[0077] Horizontal flexible movement: The linear track 32 and the linear motor 33 drive the Z-axis moving part 50 to slide horizontally, expanding the lateral working range.

[0078] Rotation-translation coordination: The horizontal frame 31 meshes with the rotating mechanism 40 to achieve a combined rotational and linear motion in the horizontal plane.

[0079] In this embodiment, the Z-axis moving component 50 includes a movable frame 51 mounted on a linear track 32. A Z-axis track 52 is installed in the movable frame 51. An electric push rod 53 that drives the Z-axis movement of the train-specific vertical tube 60 is installed in the Z-axis track 52. A movable head 54 connected to a Z-axis motor is provided on the Z-axis track 52. The movable head 54 is connected to the train-specific vertical tube 60 through a buffer column 55. The lower part of the buffer column 55 passes through the top of the movable head 54 from top to bottom and is exposed below the bottom of the movable head 54. A return spring 56 is sleeved on the lower part of the buffer column 55. The two ends of the return spring 56 abut against the movable head 54 and the train-specific vertical tube 60, respectively. A limit sensor 57 is connected to the top of the movable head 54. The limit sensor 57 is arranged vertically opposite to the upper part of the buffer column 55.

[0080] Vertical buffer protection: The buffer column 55 and the return spring 56 absorb the collision force between the vertical tube and the tank opening, preventing hard impact from damaging the equipment.

[0081] Intelligent limit control: Limit sensor 57 monitors the displacement of buffer column 55, and triggers shutdown when the limit is exceeded to avoid overload.

[0082] Precise Z-axis positioning: Electric push rod 53 drives the vertical tube to finely adjust the height, matching the depth of the tank opening.

[0083] In this embodiment, the liquid receiving mechanism 70 includes a servo motor 71, which is mounted on the side wall of the movable frame 51. A rotating rod 72 is connected to the servo motor 71, and a liquid receiving hopper 73 is connected to the bottom of the rotating rod 72.

[0084] Directional liquid collection: Servo motor 71 drives the liquid collection hopper 73 to rotate directly below the vertical tube to accurately collect dripping liquid.

[0085] High spatial adaptability: Rotating rod 72 expands the liquid contact range to adapt to different postures of the vertical tube.

[0086] In this embodiment, the rotating mechanism 40 includes a rotating motor that drives the horizontal frame 31 to rotate. The rotating motor is mounted on the column 10, and the output end of the rotating motor meshes with the bottom of the horizontal frame 31.

[0087] High-efficiency horizontal steering: The rotary motor directly engages with the horizontal frame 31, driving the loading arm to rotate at a large angle, covering the multi-track tank cars on the platform.

[0088] Simplified structure: The motor and column 10 are integrated, reducing the external space occupied.

[0089] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatically aligned top-loading and unloading train arm, characterized in that, It includes a column fixed on the platform, an inlet pipe connected to the column, a linear motion component, a rotating mechanism, a Z-axis motion component, a train-specific vertical pipe, a liquid receiving mechanism, and an automatic tank opening identification device. The automatic tank opening identification device is connected to the column, and the automatic tank opening identification device, linear motion component, rotating mechanism, and Z-axis motion component are electrically connected to the control system. The inlet pipe is connected to the train-specific vertical pipe, the linear motion component is rotatably connected to the column, the linear motion component is connected to the output end of the rotating mechanism, the linear motion component is connected to the train-specific vertical pipe through the Z-axis motion component, and the liquid receiving mechanism is connected to one side of the Z-axis motion component and arranged adjacent to the train-specific vertical pipe.

2. The automatically aligned top loading and unloading train arm as described in claim 1, characterized in that, The train-specific vertical pipe includes a wire retractor, a liquid inlet, an outer sleeve, a middle sleeve, an inner sleeve, a train sealing cap, a hydraulic oil pump, and two hydraulic lines. The upper end of the outer sleeve is connected to the liquid inlet, and the lower end of the outer sleeve is connected to the train sealing cap. The bottom end of the train sealing cap is equipped with a sealing ring for sealing connection with the tank opening of the train tank car. The middle sleeve is fitted inside the outer sleeve and can extend and retract relative to the outer sleeve. The inner sleeve is fitted inside the middle sleeve and can extend and retract relative to the middle sleeve. The outer sleeve, middle sleeve, and inner sleeve are coaxially fitted in sequence to form a retractable fluid channel. Sliding sealing structures are provided between the outer sleeve and the middle sleeve, and between the middle sleeve and the inner sleeve, respectively. The wire rope winding and unwinding machine is connected to the inner sleeve via a wire rope, used to drive the extension and retraction of the middle sleeve and the inner sleeve; the hydraulic oil displacement pump is located at the outlet end of the inner sleeve, used to realize submersible loading and unloading; the two hydraulic lines are respectively the inlet pipe for supplying hydraulic fluid into the hydraulic oil displacement pump and the outlet pipe for supplying hydraulic fluid out of the hydraulic oil displacement pump, the inlet pipe and the outlet pipe respectively pass through both sides of the train sealing cap and are connected to both sides of the hydraulic oil displacement pump, used to provide hydraulic power to the hydraulic oil displacement pump; the hydraulic oil displacement pump is connected to the hydraulic station via hydraulic lines.

3. The automatically aligned top loading and unloading train arm as described in claim 2, characterized in that, The hydraulic oil displacement pump includes a hydraulic motor, a pump body, and a delivery pipe. The hydraulic motor is connected to the top of the pump body, and the bottom of the pump body is provided with multiple inlet and outlet pipes, which are arranged circumferentially around the bottom of the pump body. The pump body is connected to the outlet end of the inner sleeve through the delivery pipe, and the hydraulic lines are connected to both sides of the hydraulic motor to provide hydraulic power to the hydraulic motor. The hydraulic pipeline includes a fixed pipe and a telescopic inner pipe. The upper end of the fixed pipe extends along the height direction of the outer sleeve. The outer sleeve is connected to the upper end of the fixed pipe through a pipe clamp. The lower end of the fixed pipe passes through the train sealing cap and is exposed below the train sealing cap. The telescopic inner pipe is inserted inside the fixed pipe and can telescopically move relative to the fixed pipe. The fixed pipe is connected to the hydraulic motor through the telescopic inner pipe.

4. The automatically aligned top loading and unloading train arm as described in claim 3, characterized in that, The outer sleeve has a hollow inner cavity. Two inner sleeve limiting rings protrude inward from the bottom opening of the outer sleeve to restrict the movement distance of the inner sleeve. An outer sealing area is formed between the two inner sleeve limiting rings, which are vertically spaced apart. An outer sealing wear-resistant ring is installed in the outer sealing area and slides against the outer wall of the inner sleeve. The inner sleeve also has a hollow inner cavity. Two inner sleeve limiting rings protrude inward from the bottom opening of the inner sleeve to restrict the movement distance of the inner sleeve. An inner sealing area is formed between the two inner sleeve limiting rings, which are vertically spaced apart. An inner sealing wear-resistant ring is installed in the inner sealing area and slides against the outer wall of the inner sleeve. Two tube abutment rings are provided on the outer periphery of the upper end of the middle sleeve. A tube mounting groove is formed between the two tube abutment rings at a vertical interval. A tube wear-resistant ring is installed in the tube mounting groove. The tube wear-resistant ring is in movable contact with the inner wall of the outer tube cavity. The tube abutment ring and the tube limiting ring are arranged vertically opposite to each other. The upper outer periphery of the inner sleeve is provided with two inner tube abutment rings protruding outwards. The two inner tube abutment rings are vertically spaced apart to form an inner tube mounting groove. An inner tube wear-resistant ring is installed in the inner tube mounting groove. The inner tube wear-resistant ring is in movable contact with the inner side wall of the inner cavity of the middle tube. The inner tube abutment ring and the inner tube limiting ring are arranged vertically opposite to each other. The sliding sealing structure is formed between the two middle tube abutment rings and the middle tube wear-resistant ring, and between the two inner tube abutment rings and the inner tube wear-resistant ring.

5. The automatically aligned top loading and unloading train arm as described in claim 4, characterized in that, The wire winding and unwinding machine includes a drive motor, a drum, and a wire rope; the drive motor is connected to the drum via a motor shaft, one end of the wire rope is connected to the drum, and the other end of the wire rope is connected to the bottom of the inner sleeve; the drive motor of the wire winding and unwinding machine is an explosion-proof motor.

6. The automatically aligned top loading and unloading train arm as described in any one of claims 1 to 5, characterized in that, The automatic can opening identification device includes an image acquisition unit and a processor unit. The image acquisition unit is used to acquire images containing the can opening, and the processor unit is used to process the images and calculate the position coordinates of the can opening. The automatic can opening identification device also includes an illumination device to provide supplementary lighting for the image acquisition unit.

7. The automatically aligned top loading and unloading train arm as described in any one of claims 1 to 5, characterized in that, The linear motion component includes a horizontal frame, which is rotatably connected to a column. The bottom of the horizontal frame engages with the output end of a rotating mechanism. A linear track for horizontal sliding of the Z-axis motion component is mounted on the horizontal frame, and a linear motor for driving the Z-axis motion component to move horizontally is connected to the linear track.

8. The automatically aligned top loading and unloading train arm as described in claim 7, characterized in that, The Z-axis moving component includes a movable frame mounted on a linear track, a Z-axis track installed in the movable frame, an electric push rod installed in the Z-axis track to drive the Z-axis movement of the train-specific vertical tube, a movable head connected to a Z-axis motor on the Z-axis track, the movable head connected to the train-specific vertical tube via a buffer column, the lower part of the buffer column extending from top to bottom through the top of the movable head and protruding below the bottom of the movable head, a return spring sleeved on the lower part of the buffer column, the two ends of the return spring respectively abutting against the movable head and the train-specific vertical tube, a limit sensor connected to the top of the movable head, the limit sensor being vertically opposite to the upper part of the buffer column.

9. The automatically aligned top loading and unloading train arm as described in claim 8, characterized in that, The liquid receiving mechanism includes a servo motor, which is mounted on the side wall of the moving frame. A rotating rod is connected to the servo motor, and a liquid receiving hopper is connected to the bottom of the rotating rod.

10. The automatically aligned top loading and unloading train arm as described in claim 9, characterized in that, The rotating mechanism includes a rotary motor that drives the horizontal frame to rotate. The rotary motor is mounted on the column, and the output end of the rotary motor meshes with the bottom of the horizontal frame.

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