Automatic lifting induction device for ship loading head

Abstract

The utility model relates to an automatic lifting induction device for a ship loading head. The technical problem that an existing ship loading head needs to be lifted through manual control is solved. Comprising a ship loading head, a lifting driving assembly, a lifting driving assembly and a PLC control system, the ship loading head is provided with a ship loading head bottom barrel, at least one material level detection structure is arranged on the circumferential inner side of the ship loading head bottom barrel, and each material level detection structure comprises a swing detection frame movably arranged on the inner side of the ship loading head bottom barrel through a circumferential limiting rotating mounting structure; the lower end of the swing detection frame extends to the outer side of the lower end of the ship loading head bottom barrel, and a material level detection switch assembly is arranged on one side of the upper end of the swing detection frame. The automatic lifting device has the advantages that when the swing detection frame body touches materials, swing is generated, so that the material level detection switch assembly is triggered, and the lifting driving assembly is controlled by the PLC control system to achieve automatic lifting of the ship loading head.

Description

Technical Field

[0001] This utility model belongs to the technical field of ship loading equipment, specifically relating to an automatic lifting sensing device for the ship loading head. Background Technology

[0002] Ship loaders are large bulk material handling machines used for loading ships at bulk terminal terminals. The loading head of a ship loader mainly includes a telescopic chute, lifting equipment, and control devices. Currently, ship loaders are primarily operated manually, which has several drawbacks: First, human negligence or misjudgment can easily lead to the loading head not being raised in time, causing rapid material accumulation and congestion, especially with granular materials such as cement clinker and aggregates. Second, relying on manual operation prevents the implementation of future automated loading operations. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing an automatic lifting sensing device for the loading bow.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic lifting sensing device for a loading head, comprising a loading head and a lifting drive assembly capable of driving the loading head to move up and down, the lifting drive assembly being connected to a PLC control system, the loading head having a bottom cylinder, at least one material level detection structure being provided on the inner circumferential side of the bottom cylinder, the material level detection structure including a swing detection frame movably mounted inside the bottom cylinder of the loading head via a circumferential limiting rotation mounting structure, the lower end of the swing detection frame extending to the outer side of the lower end of the bottom cylinder of the loading head, and a material level detection switch assembly corresponding to the swing detection frame and connected to the PLC control system being provided on one side of the upper end of the swing detection frame.

[0005] In the above-mentioned automatic lifting sensing device for a loading head, the loading head includes an outer cylinder of a telescopic chute and an inner cylinder of a telescopic chute disposed on the inner side of the outer cylinder. The upper end of the outer cylinder is connected to an outer flexible connecting cylinder, and the bottom cylinder of the loading head is disposed at the lower end of the outer cylinder. The lower end of the bottom cylinder of the loading head is provided with several dustproof soft curtains on the outer side, and the swing detection frame is located on the inner side of the dustproof soft curtains.

[0006] In the above-mentioned automatic lifting sensing device for loading ship heads, both the outer cylinder and the inner cylinder of the telescopic chute are straight cylinders, and the upper and lower ends of the inner cylinder of the telescopic chute extend beyond the two ends of the outer cylinder of the telescopic chute, respectively. The outer cylinder and the inner cylinder of the telescopic chute are coaxially and fixedly connected.

[0007] In the above-mentioned automatic lifting sensing device for loading heads, the bottom cylinder of the loading head is conical, and the diameter of the bottom cylinder of the loading head connected to the outer cylinder of the telescopic chute gradually increases from one end to the other end, and the lower end of the inner cylinder of the telescopic chute extends to the circumferential inner side of the bottom cylinder of the loading head.

[0008] In the above-mentioned automatic lifting sensing device for loading heads, two material level detection structures are provided on the inner circumference of the bottom cylinder of the loading head, and the material level detection structures are symmetrically arranged. The lower ends of the swing detection frames of the two material level detection structures are located on the same horizontal plane.

[0009] In the above-mentioned automatic lifting sensing device for loading heads, the swing detection frame includes a rotating seat rotatably disposed inside the bottom cylinder of the loading head. The upper end of the rotating seat has a swing part located on one side of the material level detection switch assembly, and the lower end of the rotating seat is provided with a material level detection plate extending vertically downward to the outer side of the lower end of the bottom cylinder of the loading head.

[0010] In the above-mentioned automatic lifting sensing device for loading heads, the circumferential limiting rotation mounting structure includes a mounting hole located at the center of the rotating seat, a rotating shaft rotatably passing through the mounting hole and located inside the bottom cylinder of the loading head, a reset torsion spring being provided between the rotating shaft and the rotating seat, and the rotating seat having at least one arc-shaped limiting groove in the circumference, and a limiting shaft located inside the bottom cylinder of the loading head passing through the limiting groove.

[0011] In the above-mentioned automatic lifting sensing device for loading ship heads, there are two limiting slots, and the limiting slots are symmetrically distributed circumferentially with the center of the rotating seat as the center.

[0012] In the above-mentioned automatic lifting sensing device for loading heads, the material level detection switch assembly includes a material level detection switch disposed on the outer side of the lower end of the inner cylinder of the telescopic chute via a switch mounting structure, and the material level detection switch has a detection head located on one side of the swing section.

[0013] In the above-mentioned automatic lifting sensing device for loading ship heads, the switch mounting structure includes a mounting frame horizontally arranged on the outer side of the lower end of the inner cylinder of the telescopic chute. One end of the mounting frame is provided with a switch seat, and the material level detection switch is connected to a strip hole provided on the switch seat through mounting bolts.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] By installing a dual material level detection switch assembly and a swing detection frame inside the bottom cylinder of the loading head, the material level detection switch assembly and the swing detection frame work together. When the swing detection frame touches the material, it swings, which triggers the material level detection switch assembly. The lifting drive assembly is controlled by the PLC control system to realize the automatic lifting of the loading head. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 This is a structural block diagram of the present invention.

[0019] In the diagram: 1. Loading head; 11. Bottom cylinder of loading head; 12. Outer cylinder of telescopic chute; 13. Inner cylinder of telescopic chute; 14. Outer flexible connection cylinder; 15. Dustproof soft curtain; 2. Lifting drive assembly; 3. PLC control system; 4. Material level detection structure; 5. Circumferential limit rotation mounting structure; 5. Mounting hole; 51. Rotating shaft; 52. Limiting groove; 53. Limiting shaft; 54. Swing detection frame; 6. Rotating seat; 61. Swinging part; 62. Material level detection plate; 63. Material level detection switch assembly; 7. Material level detection switch; 71. Detection head; 72. Mounting frame; 73. Switch seat; 74. Mounting bolt; 75. Strip hole; 76. Material pile; 8. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-3As shown, an automatic lifting sensing device for a loading head includes a loading head 1 and a lifting drive assembly 2 that can drive the loading head 1 to move up and down. The lifting drive assembly 2 is connected to a PLC control system 3. The loading head 1 has a bottom cylinder 11. Two symmetrically arranged material level detection structures 4 are provided on the inner side of the bottom cylinder 11. The material level detection structure 4 includes a swing detection frame 6 that is movably arranged on the inner side of the bottom cylinder 11 of the loading head through a circumferential limiting rotation mounting structure 5. The lower end of the swing detection frame 6 extends to the outer side of the lower end of the bottom cylinder 11 of the loading head, and the lower ends of the swing detection frames 6 of the two material level detection structures 4 are located on the same horizontal plane. A material level detection switch assembly 7 corresponding to the swing detection frame 6 and connected to the PLC control system 3 is provided on one side of the upper end of the swing detection frame 6. The bottom cylinder 11 of the loading head here is provided with two symmetrically arranged swing detection frames 6 on the inner side. The swing detection frames 6 cooperate with the material level detection switch assembly 7. The lower end of the swing detection frame 6 extends out of the lower end of the bottom cylinder 11 of the loading head. When the lower end of the swing detection frame 6 touches the material pile 8, the swing detection frame 6 swings towards the material level detection switch assembly 7, which triggers the material level detection switch assembly 7. The PLC control system 3 controls the lifting drive assembly 2 to lift the loading head 1 upward.

[0022] Furthermore, the loading head 1 here includes a telescopic sluice outer cylinder 12 and a telescopic sluice inner cylinder 13 disposed circumferentially inside the telescopic sluice outer cylinder 12. An outer flexible connecting cylinder 14 is connected to the upper end of the outer cylinder 12, and a bottom cylinder 11 of the loading head is disposed at the lower end of the outer cylinder 12. Several dustproof soft curtains 15 are provided circumferentially outside the lower end of the bottom cylinder 11, and the swing detection frame 6 is located circumferentially inside the dustproof soft curtains 15. Both the outer cylinder 12 and the inner cylinder 13 are cylindrical, with the upper and lower ends of the inner cylinder 13 extending beyond the ends of the outer cylinder 12. The outer cylinder 12 and the inner cylinder 13 are coaxially and fixedly connected. The outer flexible connecting cylinder 14 is made of soft material and can retract when the loading head 1 is raised. The bottom cylinder 11 of the loading head is conical, and the diameter of the bottom cylinder 11 of the loading head and the outer cylinder 12 of the telescopic chute gradually increases from one end to the other. The lower end of the inner cylinder 13 of the telescopic chute extends to the inner side of the bottom cylinder 11 of the loading head.

[0023] In this embodiment, the swing detection frame 6 includes a rotating seat 61 rotatably disposed inside the bottom cylinder 11 of the loading head. The upper end of the rotating seat 61 has a swing part 62 located on one side of the material level detection switch assembly 7. The lower end of the rotating seat 61 is provided with a material level detection plate 63 extending vertically downward to the outer side of the lower end of the bottom cylinder 11 of the loading head. Here, the material level detection plate 63 is arc-shaped and matches the bottom cylinder 11 of the loading head.

[0024] The circumferential limiting rotation mounting structure 5 includes a mounting hole 51 located at the center of the rotating seat 61. A rotating shaft 52, located inside the bottom cylinder 11 of the loading head, rotatably passes through the mounting hole 51. A reset torsion spring is provided between the rotating shaft 52 and the rotating seat 61. The rotating seat 61 has at least one arc-shaped limiting groove 53 circumferentially, and a limiting shaft 54, located inside the bottom cylinder 11 of the loading head, passes through the limiting groove 53. Preferably, there are two limiting grooves 53, which are symmetrically distributed circumferentially with the center of the rotating seat 61 as the center. When the lower end of the material level detection plate 63 touches the material pile 8, it drives the rotating seat 61 to rotate. The limiting groove 53 plays a role in limiting the circumferential rotation, and the reset torsion spring plays a role in resetting the rotating seat 61.

[0025] Furthermore, the material level detection switch assembly 7 here includes a material level detection switch 71 disposed on the outer side of the lower end of the inner cylinder 13 of the telescopic chute via a switch mounting structure. The material level detection switch 71 has a detection head 72 located on one side of the swing part 62. When the rotating seat 61 rotates, the swing part 62 touches the detection head 72, thereby triggering the material level detection switch 71. The switch mounting structure here includes a mounting frame 73 horizontally disposed on the outer side of the lower end of the inner cylinder 13 of the telescopic chute. One end of the mounting frame 73 is provided with a switch base 74, and the material level detection switch 71 is connected to a slotted hole 76 provided on the switch base 74 via a mounting bolt 75.

[0026] The principle of this embodiment is as follows: by installing a dual material level detection switch assembly 7 and a swing detection frame 6 inside the bottom cylinder 11 of the loading head 1, when the lower end of the material level detection plate 63 touches the material pile 8, it drives the rotating seat 61 to rotate, and the swing part 62 touches the detection head 72, which triggers the material level detection switch 71. The PLC control system 3 controls the lifting drive assembly 2 to lift the loading head 1 upward.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as loading head 1, loading head bottom cylinder 11, telescopic chute outer cylinder 12, telescopic chute inner cylinder 13, outer flexible connection cylinder 14, dustproof soft curtain 15, lifting drive assembly 2, PLC control system 3, material level detection structure 4, circumferential limit rotation mounting structure 5, mounting hole 51, rotating shaft 52, limit groove 53, limit shaft 54, swing detection frame 6, rotating seat 61, swing part 62, material level detection plate 63, material level detection switch assembly 7, material level detection switch 71, detection head 72, mounting frame 73, switch seat 74, mounting bolt 75, strip hole 76, and material pile 8, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An automatic lifting sensing device for a loading head, comprising a loading head (1) and a lifting drive assembly (2) capable of driving the loading head (1) to move up and down, wherein the lifting drive assembly (2) is connected to a PLC control system (3), and the loading head (1) has a bottom cylinder (11), characterized in that, The bottom cylinder (11) of the loading head is provided with at least one material level detection structure (4) on its inner circumferential side. The material level detection structure (4) includes a swing detection frame (6) which is movably disposed on the inner side of the bottom cylinder (11) of the loading head through a circumferential limiting rotation mounting structure (5). The lower end of the swing detection frame (6) extends to the outer side of the lower end of the bottom cylinder (11) of the loading head, and a material level detection switch assembly (7) corresponding to the swing detection frame (6) and connected to the PLC control system (3) is provided on one side of the upper end of the swing detection frame (6).

2. The automatic lifting sensing device for the loading bow according to claim 1, characterized in that, The loading head (1) includes a telescopic chute outer cylinder (12) and a telescopic chute inner cylinder (13) disposed on the inner side of the outer cylinder (12). The upper end of the telescopic chute outer cylinder (12) is connected to an outer flexible connecting cylinder (14), and the loading head bottom cylinder (11) is disposed at the lower end of the telescopic chute outer cylinder (12). The lower end of the loading head bottom cylinder (11) is provided with several dustproof soft curtains (15) on the outer side, and the swing detection frame (6) is located on the inner side of the dustproof soft curtains (15).

3. The automatic lifting sensing device for the loading bow according to claim 2, characterized in that, The telescopic chute outer cylinder (12) and the telescopic chute inner cylinder (13) are both cylindrical, and the upper and lower ends of the telescopic chute inner cylinder (13) extend beyond the two ends of the telescopic chute outer cylinder (12). The telescopic chute outer cylinder (12) and the telescopic chute inner cylinder (13) are coaxially and fixedly connected.

4. The automatic lifting sensing device for the loading bow according to claim 2, characterized in that, The bottom cylinder (11) of the loading head is conical, and the diameter of the bottom cylinder (11) of the loading head and the outer cylinder (12) of the telescopic chute gradually increases from one end to the other end. The lower end of the inner cylinder (13) of the telescopic chute extends to the inner circumference of the bottom cylinder (11) of the loading head.

5. An automatic lifting sensing device for a ship's loading bow according to claim 2, 3, or 4, characterized in that, The bottom cylinder (11) of the loading head is provided with two material level detection structures (4) on the inner side of the circumference, and the material level detection structures (4) are symmetrically arranged. The lower ends of the swing detection frame (6) of the two material level detection structures (4) are located on the same horizontal plane.

6. The automatic lifting sensing device for the loading bow according to claim 5, characterized in that, The swing detection frame (6) includes a rotating seat (61) rotatably disposed inside the bottom cylinder (11) of the loading head. The upper end of the rotating seat (61) has a swing part (62) located on one side of the material level detection switch assembly (7). The lower end of the rotating seat (61) is provided with a material level detection plate (63) extending vertically downward to the outer side of the lower end of the bottom cylinder (11) of the loading head.

7. The automatic lifting sensing device for a loading bow according to claim 6, characterized in that, The circumferential limiting rotation mounting structure (5) includes a mounting hole (51) located at the center of the rotating seat (61), a rotating shaft (52) located inside the bottom cylinder (11) of the loading head is rotatably inserted in the mounting hole (51), a return torsion spring is provided between the rotating shaft (52) and the rotating seat (61), and the rotating seat (61) has at least one arc-shaped limiting groove (53) in the circumferential direction, and a limiting shaft (54) located inside the bottom cylinder (11) of the loading head is inserted in the limiting groove (53).

8. The automatic lifting sensing device for a loading bow according to claim 7, characterized in that, The number of the limiting grooves (53) is two, and the limiting grooves (53) are symmetrically distributed circumferentially with the center of the rotating seat (61) as the center.

9. The automatic lifting sensing device for a ship's loading bow according to claim 6, characterized in that, The material level detection switch assembly (7) includes a material level detection switch (71) disposed on the outer side of the lower end of the inner cylinder (13) of the telescopic chute via a switch mounting structure. The material level detection switch (71) has a detection head (72) located on one side of the swing part (62).

10. The automatic lifting sensing device for a loading bow according to claim 6, characterized in that, The switch mounting structure includes a mounting frame (73) horizontally arranged on the outer side of the lower end of the inner cylinder (13) of the telescopic chute. One end of the mounting frame (73) is provided with a switch seat (74). The material level detection switch (71) is connected to the strip hole (76) provided on the switch seat (74) by mounting bolts (75).

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