Full-automatic fluid loading and unloading crane pipe with automatic cover opening and closing function of tank truck

Abstract

The utility model relates to a loading and unloading crane pipe technical field, especially a full -automatic fluid loading and unloading crane pipe with tank car automatic cover opening and closing function of taking groove, including stand and install crane pipe body on stand, crane pipe body has the downpipe for inserting the inside of tank car tank mouth, the top rotation of stand is provided with telescopic arm, and the telescopic end of telescopic arm is fixedly provided with mounting plate, and the first elevating gear and second elevating gear are perpendicularly arranged respectively on mounting plate, and the power output end of first elevating gear carries automatic cover opening subassembly matched with tank car tank cover, the utility model discloses through the cooperation of automatic cover opening subassembly, visual identification module and each power mechanism, has realized tank car tank cover opening, close and crane pipe downpipe alignment's full automation operation, replaced traditional artificial climbing, manual screwing cover's operation mode, avoided climbing fall, material leakage contact and other security risks, effectively promoted the operation efficiency of petroleum chemical industry fluid loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading arms, and in particular to a fully automatic fluid loading and unloading arm with an automatic opening and closing function for tank truck covers. Background Technology

[0002] In the petrochemical industry, tank trucks are the core equipment for transporting liquid chemical raw materials, oil products, and other materials. Currently, their loading operations still primarily rely on manual labor. Workers must climb to the top of the tank truck and manually open and close the tank lid (hereinafter referred to as the "tank lid"). This traditional operating mode presents significant safety hazards and efficiency bottlenecks: on the one hand, workers operating at heights are prone to falls due to missteps, slips, or operational errors, posing a high safety risk; on the other hand, manual operation is time-consuming and constrained by factors such as worker skill level and physical condition, making it difficult to achieve efficient coordination with automated loading arm systems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a fully automatic fluid loading and unloading arm with automatic opening and closing cover function for tank trucks, which can effectively reduce safety hazards and improve operating efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fully automatic fluid loading arm with an automatic opening and closing cover function for tank trucks includes a column and an loading arm body mounted on the column. The loading arm body has a vertical pipe for insertion into the tank opening of the tank truck. Its features are: The top of the column is rotatably equipped with a telescopic arm, and the telescopic end of the telescopic arm is fixedly equipped with an installation plate. The installation plate is vertically equipped with a first lifting mechanism and a second lifting mechanism. The power output end of the first lifting mechanism is equipped with an automatic lid opening component that cooperates with the tank lid of the tank truck. The power output end of the second lifting mechanism is fixedly connected to the vertical pipe of the loading arm body. The installation plate is also equipped with a visual recognition module for obtaining tank opening position information. The automatic cap opening assembly includes a frame, with a cap opening mold adapted to the shape of the tank truck cap at the bottom of the frame. Positioning clamps that cooperate with the tank opening of the tank truck are symmetrically arranged on the left and right sides of the cap opening mold. A rotary power device that drives the cap opening mold to rotate and tighten the cap, and a linear power device that drives the positioning clamps to move synchronously in opposite directions are respectively arranged on the frame. A lid-lifting component is installed between the two positioning clamps and is linked to the positioning clamps. The lid-lifting component can be synchronously retracted to below the flange of the tank truck lid as the two positioning clamps move in opposite directions, so as to cooperate with the first lifting mechanism to lift the tank lid.

[0005] The technical problem to be solved by this utility model can be further achieved through the following steps: the lifting cover component includes four lifting cover rods, and the front and rear ends of each positioning clamp are hinged to a corresponding lifting cover rod; the two lifting cover rods located at the same end of the two positioning clamps are hinged together through the middle hinge shaft. When the two positioning clamps move in opposite directions, the distance between the two middle hinge shafts shortens synchronously to realize the closing action of the lifting cover component.

[0006] The technical problem to be solved by this utility model can be further achieved through the following steps: the positioning fixture includes a movable seat fixedly connected to the power output end of the linear power equipment, and connecting rods are respectively provided downward at the front and rear ends of the movable seat, and the lower ends of the connecting rods are respectively hinged to a cover lifting rod; at least two clamping claws for clamping the tank mouth of the tank truck are vertically provided at the bottom of the movable seat between the two connecting rods.

[0007] The technical problem to be solved by this utility model can be further achieved through the following steps, wherein the lifting rod is specifically a horizontally set arc-shaped rod.

[0008] The technical problem to be solved by this utility model can be further achieved through the following steps: the frame includes a top plate, a middle plate and a bottom plate arranged in parallel, wherein the top plate is fixedly connected to the power output end of the first lifting mechanism, the middle plate is connected to the top plate through a shock absorption and buffer mechanism, and the bottom plate is connected to the middle plate through an offset adjustment mechanism; the rotary power equipment and the linear power equipment are both installed on the bottom plate.

[0009] The technical problem to be solved by this utility model can be further achieved through the following steps: the rotary power device is a drive motor set above the base plate, and the linear power device is a bidirectional cylinder set below the base plate; a spline transmission mechanism is also set below the base plate, and the power output end of the drive motor is connected to the top surface of the opening mold through the spline transmission mechanism.

[0010] The technical problem to be solved by this utility model can be further achieved through the following steps: the shock absorption and buffer mechanism includes multiple spring shock absorbers disposed on the upper surface of the middle plate, and the two ends of the spring shock absorbers are fixedly connected to the top plate and the middle plate respectively; the offset adjustment mechanism includes multiple ball joint rods disposed on the upper surface of the bottom plate, and the two ends of the ball joint rods are spherically hinged to the bottom plate and the middle plate respectively.

[0011] The technical problem to be solved by this utility model can be further achieved through the following steps, including a steering power mechanism installed on the top of the column for driving the telescopic arm to rotate, and a telescopic power mechanism installed on the telescopic arm for driving the telescopic arm to extend and retract; the visual recognition module is electrically connected to the steering power mechanism, the telescopic power mechanism, the first lifting mechanism and the second lifting mechanism respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are: through the coordinated operation of the automatic lid opening component, the visual recognition module and various power mechanisms, the fully automated operation of opening and closing the tank cover of the tank truck and the alignment of the loading arm and vertical pipe is realized, replacing the traditional manual climbing and manual lid tightening operation mode, avoiding safety hazards such as falling from heights and material leakage and contact, and effectively improving the operation efficiency of fluid loading and unloading in the petrochemical industry. Attached Figure Description

[0013] Figure 1 Here is a schematic diagram of the overall structure of this utility model; Figure 2 Here is a schematic diagram (b) of the overall structure of this utility model; Figure 3 Diagram a shows the usage of the automatic lid opening component; Figure 4 for Figure 3 A left-view diagram; Figure 5 Diagram b shows the usage of the automatic lid opening component; Figure 6 for Figure 5 A left-view diagram; In the diagram: 1. Column; 2. Loading arm body; 3. Vertical tube; 4. Telescopic arm; 41. Fixed section; 42. Telescopic section; 5. Mounting plate; 6. First lifting mechanism; 7. Second lifting mechanism; 8. Vision recognition module; 9. Frame; 10. Opening mold; 11. Positioning fixture; 12. Lifting rod; 13. Middle hinge shaft; 14. Moving seat; 15. Connecting rod; 16. Clamping claw; 91. Top plate; 92. Middle plate; 93. Bottom plate; 17. Drive motor; 18. Two-way cylinder; 19. Spline transmission mechanism; 20. Spring shock absorber; 21. Ball joint rod; 22. Steering power mechanism; 23. Telescopic power mechanism; 24. Position switch; 25. Sealing plug; 26. Can lid; 27. Can opening. Detailed Implementation

[0014] The specific technical solutions of this utility model are further described below to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on the utility model.

[0016] Please refer to Figure 1-6A fully automatic fluid loading arm with automatic opening and closing cover function for tank trucks includes a column 1 and a loading arm body 2 installed on the column 1. The loading arm body 2 has a vertical pipe 3 for inserting into the tank opening 27 of the tank truck. The vertical pipe 3 is located at the end of the loading arm body 2, and a sealing plug 25 is installed on it to abut against the tank opening 27 of the tank truck to prevent leakage of liquid from the tank.

[0017] A telescopic arm 4 is rotatably mounted on the top of the column 1. A mounting plate 5 is fixedly mounted on the telescopic end of the telescopic arm 4. A first lifting mechanism 6 and a second lifting mechanism 7 are vertically mounted on the mounting plate 5. The power output end of the first lifting mechanism 6 is equipped with an automatic opening assembly that cooperates with the tank cover 26 of the tank truck. The power output end of the second lifting mechanism 7 is fixedly connected to the vertical pipe 3 of the loading arm body 2. A visual recognition module 8 for acquiring the position information of the tank opening 27 is also provided on the mounting plate 5. The telescopic arm 4 is a common mechanical structure in the art, which has a fixed section 41 and a telescopic section 42. The fixed section 41 is a sleeve-shaped structure that is mounted on the top of the column 1. The telescopic section 42 is inserted into the fixed section 41, and the end away from the fixed section 41 is the telescopic end of the telescopic arm 4. The telescopic arm 4 is horizontally mounted on the top of the column 1, and the mounting plate 5 is vertically mounted on the telescopic end of the telescopic arm 4. The visual recognition module 8 includes an angle-adjustable camera.

[0018] The automatic lid-opening assembly includes a frame 9. At the bottom of the frame 9 is a lid-opening mold 10 adapted to the shape of the tank truck lid 26. On the left and right sides of the lid-opening mold 10 are symmetrically arranged positioning clamps 11 that engage with the tank opening 27 of the tank truck. A rotary power device for driving the lid-opening mold 10 to rotate and tighten the lid, and a linear power device for driving the positioning clamps 11 to move synchronously in opposite directions are respectively arranged on the frame 9. The lid-opening mold 10 is vertically arranged at the bottom of the frame 9. The lid-opening mold 10 has a disc-shaped mounting part and multiple claws fixedly arranged below the mounting part, adapted to the structure of the tank truck lid 26. In use, the claws descend via the first lifting mechanism 6 and engage with the lid 26. At this time, the lid 26 can be tightened by driving the lid-opening mold 10 to rotate via the rotary power device.

[0019] A lid-lifting component, linked to the positioning clamps 11, is installed between the two positioning clamps 11. This lid-lifting component retracts synchronously to below the flange of the tank truck lid 26 as the two positioning clamps 11 move away from each other, thus cooperating with the first lifting mechanism 6 to lift the lid 26. Specifically, when the lid 26 is screwed until it disengages from the threads of the tank body, the two positioning clamps 11 move away from each other under the drive of a linear power device. At this time, the top-view projection of the lid-lifting component gradually coincides with the flange of the tank truck lid 26 as the positioning clamps 11 move away. Then, the first lifting mechanism 6 lifts the positioning clamps 11, thereby raising the lid 26.

[0020] The first lifting mechanism 6 and the second lifting mechanism 7 are both common linear lifting mechanisms in this field, such as chain lifting mechanisms and screw lifting mechanisms. As long as they can achieve the function of linear lifting, their specific structures will not be described in detail.

[0021] In the above structure, the lifting component includes four lifting rods 12, and each positioning clamp 11 is hinged to a lifting rod 12 at both ends. The two lifting rods 12 located at the same end of the two positioning clamps 11 are hinged together by a central hinge shaft 13. When the two positioning clamps 11 move in opposite directions, the distance between the two central hinge shafts 13 shortens synchronously to realize the closing action of the lifting component.

[0022] In the above structure, the positioning clamp 11 includes a movable seat 14 fixedly connected to the power output end of the linear power equipment. The front and rear ends of the movable seat 14 are respectively provided with connecting rods 15 downwards, and the lower ends of the connecting rods 15 are respectively hinged to a cover lifting rod 12. At least two clamping claws 16 for clamping the tank opening 27 of the tank truck are vertically provided at the bottom of the movable seat 14 between the two connecting rods 15. The movable seat 14 is a horizontally arranged L-shaped structure.

[0023] In the above structure, the lifting rod 12 is specifically a horizontally arranged arc-shaped rod.

[0024] Specifically, the frame 9 is a composite structure, comprising a top plate 91, a middle plate 92, and a bottom plate 93 arranged in parallel. The top plate 91 is fixedly connected to the power output end of the first lifting mechanism 6. The middle plate 92 is connected to the top plate 91 via a shock-absorbing mechanism, and the bottom plate 93 is connected to the middle plate 92 via an offset adjustment mechanism. Both the rotary power equipment and the linear power equipment are mounted on the bottom plate 93. A height detection switch 24 is also installed on the top plate 91.

[0025] In the above structure, the rotary power device is a drive motor 17 mounted above the base plate 93, and the linear power device is a bidirectional cylinder 18 mounted below the base plate 93. A spline transmission mechanism 19 is also provided below the base plate 93. The power output end of the drive motor 17 is connected to the top surface of the lid-opening mold 10 through the spline transmission mechanism 19. The power output end of the bidirectional cylinder 18 is connected to the inner ends of the moving seats 14 of the two positioning clamps 11 respectively. The spline transmission mechanism 19 is a common transmission structure in the art. Compared with traditional coupling transmission, it can achieve coaxial transmission while allowing the lid-lifting component to move synchronously within a small range as the lid 26 is turned, thereby avoiding jamming.

[0026] The shock absorption and buffer mechanism includes multiple spring shock absorbers 20 disposed on the upper surface of the middle plate 92. The spring shock absorbers 20 are common mechanical structures in the art. The two ends of the spring shock absorbers 20 are fixedly connected to the top plate 91 and the middle plate 92, respectively. The offset adjustment mechanism includes multiple ball joint rods 21 disposed on the upper surface of the bottom plate 93. The two ends of the ball joint rods 21 are spherically hinged to the bottom plate 93 and the middle plate 92, respectively. When there is a horizontal positional deviation between the middle plate 92 and the can opening 27, the ball joint rods 21 can allow the bottom plate 93 to undergo offset compensation under the clamping of the positioning fixture 11, thereby achieving concentric alignment between the opening mold and the can opening 27.

[0027] This utility model also includes a steering power mechanism 22 installed on the top of the column 1 for driving the telescopic arm 4 to rotate, and a telescopic power mechanism 23 installed on the telescopic arm 4 for driving the telescopic arm 4 to extend and retract; the visual recognition module 8 is electrically connected to the steering power mechanism 22, the telescopic power mechanism 23, the first lifting mechanism 6, and the second lifting mechanism 7 respectively. Specifically, the steering power mechanism 22 is a gear transmission mechanism driven by a motor, and the telescopic power mechanism 23 is a rack and pinion mechanism driven by a motor.

[0028] Working principle: When the tanker truck enters the loading and unloading station, the vision recognition module 8 performs image acquisition and three-dimensional positioning of the tank opening 27. Based on this, the back-end control system drives the steering power mechanism 22 and the telescopic power mechanism 23 to adjust the orientation and length of the telescopic arm 4, moving the automatic opening assembly directly above the tank opening 27.

[0029] Subsequently, the first lifting mechanism 6 descends, driving the entire lid-opening assembly closer to the can opening 27. When the positioning switch 24 installed on the top plate 91 is triggered, the assembly stops descending and reaches the working height. At this time, the jaws of the lid-opening mold 10 engage with the can lid 26. The bidirectional cylinder 18 actuates, driving the left and right positioning clamps 11 to move towards each other, initially gripping the can opening 27 through the clamping jaws 16. If there is a concentricity deviation between the lid-opening mold 10 and the can opening 27 at this time, the offset adjustment mechanism can play a compensating role: under the action of clamping force, the bottom plate 93 generates an adaptive horizontal offset through the ball joint 21 until the lid-opening mold 10 and the can opening 27 are completely aligned. Figure 3-4 ).

[0030] After centering is completed, the drive motor 17 starts and drives the lid-opening mold 10 to rotate counterclockwise (in the loosening direction) through the spline transmission mechanism 19. The chucks drive the lid 26 to rotate together, realizing the loosening operation. While transmitting torque, the spline transmission mechanism 19 allows the lid-opening mold 10 to float slightly up and down with the spiral movement of the lid 26 during the capping process, avoiding jamming.

[0031] After the can lid 26 is fully loosened, the bidirectional cylinder 18 moves in the opposite direction, driving the two positioning clamps 11 to move in opposite directions. This movement drives the four lid-lifting rods 12 to retract via the connecting rod 15, and their arc-shaped ends simultaneously retract to below the flange of the can lid 26 and support it. Subsequently, the first lifting mechanism 6 rises, smoothly lifting the can lid 26 to complete the lid-opening operation. Figure 5-6 ).

[0032] After the lid is opened, the visual recognition module 8 re-verifies the position, and the telescopic arm 4 and steering power mechanism make fine adjustments to ensure that the vertical tube 3 is precisely aligned with the tank opening 27. The second lifting mechanism 7 is activated, lowering the vertical tube 3 to insert it deep into the tank opening 27, while the sealing plug 25 presses against the sealing surface of the tank opening 27, and the fluid loading and unloading operation begins.

[0033] After the operation is completed, the system performs the closing operation in reverse order: the second lifting mechanism 7 first lifts the vertical pipe 3 away from the can opening 27; the opening assembly is repositioned and lowered, placing the can lid 26 at the beginning of the thread on the can opening 27; the drive motor 17 rotates clockwise to tighten the can lid 26 to the sealing requirements; finally, the positioning clamp 11 is released and removed, all mechanisms are reset, and the system is ready for the next operation.

[0034] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A fully automatic fluid loading arm with automatic opening and closing cover function for tank trucks, comprising a column and a loading arm body mounted on the column, the loading arm body having a vertical pipe for insertion into the tank opening of the tank truck, characterized in that: The top of the column is rotatably equipped with a telescopic arm, and the telescopic end of the telescopic arm is fixedly equipped with an installation plate. The installation plate is vertically equipped with a first lifting mechanism and a second lifting mechanism. The power output end of the first lifting mechanism is equipped with an automatic lid opening component that cooperates with the tank lid of the tank truck. The power output end of the second lifting mechanism is fixedly connected to the vertical pipe of the loading arm body. The installation plate is also equipped with a visual recognition module for obtaining tank opening position information. The automatic cap opening assembly includes a frame, with a cap opening mold adapted to the shape of the tank truck cap at the bottom of the frame. Positioning clamps that cooperate with the tank opening of the tank truck are symmetrically arranged on the left and right sides of the cap opening mold. A rotary power device that drives the cap opening mold to rotate and tighten the cap, and a linear power device that drives the positioning clamps to move synchronously in opposite directions are respectively arranged on the frame. A lid-lifting component is installed between the two positioning clamps and is linked to the positioning clamps. The lid-lifting component can be synchronously retracted to below the flange of the tank truck lid as the two positioning clamps move in opposite directions, so as to cooperate with the first lifting mechanism to lift the tank lid.

2. The fully automatic fluid loading arm with automatic opening and closing cover function for tank trucks as described in claim 1, characterized in that: The lifting mechanism includes four lifting rods, with each positioning fixture having its front and rear ends hinged to a corresponding lifting rod. The two lifting rods located at the same end of the two positioning fixtures are hinged together through a central hinge shaft. When the two positioning fixtures move in opposite directions, the distance between the two central hinge shafts shortens synchronously to achieve the retraction action of the lifting mechanism.

3. The fully automatic fluid loading arm with automatic opening and closing cover function for tank trucks as described in claim 2, characterized in that: The positioning fixture includes a movable seat fixedly connected to the power output end of the linear power equipment. Connecting rods are respectively provided downward at the front and rear ends of the movable seat, and the lower ends of the connecting rods are respectively hinged to a cover lifting rod. At least two clamping claws for clamping the tank opening of the tank truck are vertically provided at the bottom of the movable seat between the two connecting rods.

4. The fully automatic fluid loading arm with automatic tank truck cover opening and closing function as described in claim 2, characterized in that: The lifting rod is specifically a horizontally positioned arc-shaped rod.

5. The fully automatic fluid loading arm with automatic tank truck cover opening and closing function as described in claim 1, characterized in that: The frame includes a top plate, a middle plate, and a bottom plate arranged in parallel. The top plate is fixedly connected to the power output end of the first lifting mechanism. The middle plate is connected to the top plate through a shock-absorbing and buffering mechanism. The bottom plate is connected to the middle plate through an offset adjustment mechanism. The rotary power equipment and the linear power equipment are both mounted on the bottom plate.

6. The fully automatic fluid loading arm with automatic tank truck cover opening and closing function as described in claim 5, characterized in that: The rotary power device is a drive motor mounted above the base plate, and the linear power device is a bidirectional cylinder mounted below the base plate. A spline transmission mechanism is also provided below the base plate, and the power output end of the drive motor is connected to the top surface of the opening mold through the spline transmission mechanism.

7. The fully automatic fluid loading arm with automatic tank truck cover opening and closing function as described in claim 5, characterized in that: The shock absorption and buffer mechanism includes multiple spring shock absorbers disposed on the upper surface of the middle plate, with both ends of the spring shock absorbers fixedly connected to the top plate and the middle plate, respectively; the offset adjustment mechanism includes multiple ball joint rods disposed on the upper surface of the bottom plate, with both ends of the ball joint rods spherically hinged to the bottom plate and the middle plate, respectively.

8. The fully automatic fluid loading arm with automatic tank truck cover opening and closing function as described in claim 1, characterized in that: It includes a steering power mechanism installed on the top of the column for driving the telescopic arm to rotate, and a telescopic power mechanism installed on the telescopic arm for driving the telescopic arm to extend and retract; the visual recognition module is electrically connected to the steering power mechanism, the telescopic power mechanism, the first lifting mechanism and the second lifting mechanism respectively.

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