A special unloading device for coal powder container

Abstract

A kind of special unloading device of coal dust container, including crane bridge, both ends of crane bridge are equipped with trolley running mechanism, and the top of crane bridge is equipped with hoist trolley, and hoist trolley is equipped with lifting mechanism, and the below of hoist trolley is equipped with sling, sling includes sling frame, the top of sling frame is equipped with movable pulley assembly, and the top of sling frame is equipped with balance beam assembly, and sling frame is rotatably equipped with rotary lock, and the top of sling frame is equipped with rotary lock driving mechanism;The below of sling frame is equipped with hanging frame, and the top of hanging frame is equipped with lock slot, and the below of hanging frame is equipped with box, and there is turnover mechanism between box and hanging frame, and lifting mechanism includes first lifting drum and second lifting drum, and hoist trolley is equipped with lifting drive mechanism, and there is steel wire rope between sling frame and first lifting drum and second lifting drum.The utility model structure is simple, and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of coal powder container unloading technology, and in particular relates to a special unloading device for coal powder containers. Background Technology

[0002] Powdered coal, consisting of coal particles smaller than 0.5 mm, is the most commonly used additive in cast iron molding sand. Traditional coal storage cranes typically employ a hook-type or ordinary grab-bucket structure design, connecting the hook or grab to the crane's lifting mechanism via wire ropes. The crane then moves the grab or hook horizontally and vertically, thus shifting its position and transferring the material. However, in existing technologies, the wire rope traction of the hook or grab is prone to swaying, easily causing powdered coal to spill. The single lifting weight is also relatively light, resulting in low efficiency in powdered coal lifting and transfer, and increasing the labor intensity of workers. Therefore, in existing technologies, swaying and shaking during powdered coal transfer can cause significant material spillage, impacting the environment and increasing the labor intensity of workers. Utility Model Content

[0003] To address the technical problems in existing technologies where pulverized coal transportation is prone to swaying and shaking, causing material spillage and inconvenient unloading, thus affecting work efficiency, this utility model provides a special unloading device for pulverized coal containers. The device includes a horizontally arranged crane bridge, comprising two parallel and spaced main beams with two symmetrically arranged end beams between them. Both the main beams and end beams provide support and form a "U"-shaped structure. The two end beams are detachably fixed to both ends of the main beams. A trolley traveling mechanism is mounted on both ends of the end beams of the crane bridge. The trolley traveling mechanism includes trolley wheels and a trolley traveling motor. The trolley wheels are rotatably mounted on the end beams, and the trolley traveling motor is fixed to the end beams and connected to the trolley wheels via a transmission connection. The trolley traveling motor is connected to a power source and a PLC controller via a cable. Starting the trolley traveling motor causes the trolley wheels to rotate, thereby moving the crane bridge longitudinally. The top of the crane bridge is equipped with a crane trolley that can move left and right. The crane trolley includes a trolley frame, which provides support. The bottom of the trolley frame is equipped with a trolley traveling mechanism, which includes trolley traveling wheels that are rotatably mounted on the trolley frame and a trolley traveling motor fixed on the trolley frame. The trolley traveling motor is connected to the trolley traveling wheels via a transmission. The trolley traveling motor is connected to the power supply and PLC controller via a cable. When the trolley traveling motor is started, it drives the trolley traveling wheels to roll along the trolley traveling track at the top of the main beam, thereby adjusting the lateral position of the crane trolley. The trolley is equipped with a lifting mechanism, and a spreader is located below the trolley. The spreader includes a horizontally arranged spreader frame, with movable pulley assemblies at the four corners of the top of the spreader frame. Balance beam assemblies are also installed in the middle of both sides of the top of the spreader frame. Several vertically arranged rotary locks are rotatably mounted on the spreader frame, and a rotary lock drive mechanism is provided at the top of the spreader frame to drive the rotary locks to rotate (this is existing technology and will not be described in detail here. The rotary locks can be driven to rotate by an electric actuator through a linkage mechanism to lock the container, or they can be driven by a motor). The lifting frame is horizontally positioned below the lifting frame. The top of the lifting frame has a lock slot that corresponds to the rotary lock. Below the lifting frame is a box with an open top. A tilting mechanism is provided between the box and the lifting frame. The box is mounted on the lifting frame through the tilting mechanism. The tilting mechanism includes a tilting motor fixed on the lifting frame. A gear assembly is provided between the tilting motor and the box. The box is connected to the tilting motor through the gear assembly. The tilting motor is connected to the power supply and PLC controller through a cable. When the tilting motor is started, it drives the box to rotate at a certain angle, which facilitates the rapid unloading of coal powder from the box.The lifting mechanism includes a first lifting drum and a second lifting drum mounted on the top of the lifting trolley. The first and second lifting drums are coaxially arranged. The lifting trolley adjacent to both the first and second lifting drums is equipped with a lifting drive mechanism for driving the first and second lifting drums. A wire rope connects the lifting frame to the first and second lifting drums. The lifting trolley is equipped with fixed pulley assemblies and pressure roller assemblies, each corresponding to a movable pulley assembly. The ropes include wire rope a, wire rope b, wire rope c, and wire rope d. One end of wire rope a and wire rope b is fixed to the balance beam assembly, and then passes through the fixed pulley assembly, the pressure wheel assembly, and the movable pulley assembly in sequence before connecting to the second hoisting drum. One end of wire rope c and wire rope d is fixed to the balance beam assembly, and then passes through the fixed pulley assembly, the pressure wheel assembly, and the movable pulley assembly in sequence before connecting to the first hoisting drum. This structure is configured as a twelve-rope three-dimensional structure (as per the attached instruction manual). Figure 4 The structure shown solves the problems of bulkiness, low efficiency, and poor maneuverability in traditional container coal unloading, reducing container sway and improving stability.

[0004] Preferably, the lifting drive mechanism includes two lifting motors and two reducers. The first and second lifting drums are both connected to the lifting motors via the reducers, and the two lifting motors are arranged on the same axis. A drive shaft is provided between the two reducers, and the two reducers are connected via the drive shaft.

[0005] Preferably, the crane bridge is also equipped with an electrical control system and guardrails.

[0006] The above scheme has the following advantages: The lifting mechanism uses a first and second lifting drum connected to the four corners of the lifting frame and the two lifting points on the top center of the lifting frame, forming a twelve-rope three-dimensional structure. This improves the stability of the lifting device during lifting and transportation, reduces the occurrence of coal powder falling out of the box due to box swaying, and improves transportation efficiency and quality. The box can be rotatably mounted on the lifting frame through a flipping mechanism. The flipping motor can drive the box to rotate at a certain angle, which facilitates the quick unloading of coal powder from the box and improves work efficiency. The rotary lock drive mechanism set at the top of the lifting frame facilitates quick disassembly of the lifting frame and improves work efficiency. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the left-side structure of this utility model; Figure 4 This is a schematic diagram of the winding structure of the wire rope and the lifting frame.

[0008] Reference numerals: 1. Crane bridge; 2. Crane trolley; 3. Hoisting mechanism; 4. Lifting device; 5. Housing; 6. Tilting mechanism; 11. Main beam; 12. End beam; 13. Trolley traveling mechanism; 14. Electrical control system; 15. Guardrail; 21. Trolley frame; 22. Trolley traveling mechanism; 31. First hoisting drum; 32. Second hoisting drum; 33. Hoisting drive mechanism; 34. Reducer; 35. Drive shaft; 36. 41. Lifting motor; 412. Lifting frame; 413. Balance beam assembly; 414. Fixed pulley assembly; 415. Wire pressing wheel assembly; 46. Moving pulley assembly; 47. Rotary lock drive mechanism; 48. Rotary lock; 49. Lifting frame; 40. Wire rope; 41. Wire rope a; 42. Wire rope b; 43. Wire rope c; 44. Wire rope d; 45. Cable winding and unwinding mechanism; 66. Tilting motor; 67. Gear assembly. Detailed Implementation

[0009] like Figure 1-4As shown, a special unloading device for a pulverized coal container includes a horizontally arranged crane bridge 1. The crane bridge 1 includes two parallel and spaced main beams 11, and two symmetrically arranged end beams 12 between the two main beams 11. Both the main beams 11 and the end beams 12 provide support and form a "U"-shaped structure. The two end beams 12 are detachably fixed to both ends of the main beams 11. A trolley traveling mechanism 13 is mounted on both ends of the end beams 12 at both ends of the crane bridge 1. The trolley traveling mechanism 13 includes trolley traveling wheels and a trolley traveling motor. The trolley traveling wheels are rotatably mounted on the end beams 12, and the trolley traveling motor is fixed on the end beams 12 and connected to the trolley traveling wheels for transmission. The trolley traveling motor is connected to a power source and a PLC controller via a cable. When the trolley traveling motor is started, it drives the trolley traveling wheels to rotate, thereby causing the crane bridge 1 to move longitudinally. The top of the crane bridge 1 is equipped with a crane trolley 2 that can move left and right. The crane trolley 2 includes a trolley frame 21, which serves as a support. The bottom of the trolley frame 21 is provided with a trolley traveling mechanism 22. The trolley traveling mechanism 22 includes trolley traveling wheels that are rotatably mounted on the trolley frame 21 and a trolley traveling motor fixed on the trolley frame 21. The trolley traveling motor is connected to the trolley traveling wheels via a transmission. The trolley traveling motor is connected to the power supply and PLC controller via a cable. When the trolley traveling motor is started, it drives the trolley traveling wheels to roll along the trolley traveling track at the top of the main beam 11, thereby adjusting the lateral position of the crane trolley 2. The lifting trolley 2 is equipped with a lifting mechanism 3, and a spreader 4 is provided below the lifting trolley 2. The spreader includes a horizontally arranged spreader frame 41. Each of the four corners of the top of the spreader frame 41 is equipped with a movable pulley assembly 42, and a balance beam assembly 411 is installed in the middle of both sides of the top of the spreader frame 41. Several vertically arranged rotary locks 44 are rotatably mounted on the spreader frame 41, and a rotary lock drive mechanism 43 is provided at the top of the spreader frame 41 to drive the rotary locks 44 to rotate (this is prior art and will not be described in detail here. The rotary locks 44 can be driven to rotate by an electric push rod through a linkage mechanism to lock the container, or they can be driven by a motor). Below the lifting frame 41 is a horizontally arranged lifting frame 45. The top of the lifting frame 45 has a lock slot that corresponds one-to-one with the rotary lock 44 (not shown in the attached diagram of the instruction manual). Below the lifting frame 45 is a box 5 with an open top. A flipping mechanism 6 is provided between the box 5 and the lifting frame 45. The box 5 is assembled on the lifting frame 45 through the flipping mechanism 6. The flipping mechanism 6 includes a flipping motor 61 fixed on the lifting frame 45. A gear assembly 62 is provided between the flipping motor 61 and the box 5. The box 5 is connected to the flipping motor 61 through the gear assembly 62. The flipping motor 61 is connected to the power supply and PLC controller through a cable. When the flipping motor 61 is started, the flipping motor 61 drives the box 5 to rotate a certain angle, which facilitates the quick unloading of coal powder inside the box 5.The lifting mechanism 3 includes a first lifting drum 31 and a second lifting drum 32 mounted on the top of the lifting trolley 2. The first lifting drum 31 and the second lifting drum 32 are arranged coaxially. The lifting trolley 2 next to the first lifting drum 31 and the second lifting drum 32 is equipped with a lifting drive mechanism 33 for driving the first lifting drum 31 and the second lifting drum 32. A wire rope 46 is provided between the lifting frame 41 and the first lifting drum 31 and the second lifting drum 32. The lifting trolley 2 is equipped with a fixed pulley assembly 412 and a wire pressing wheel assembly 413, which are arranged one-to-one with the movable pulley assembly 42. The wire pressing wheel assembly 413 guides and presses the wire rope 464. The function of the wire rope 46 is as follows: wire rope 46 includes wire rope a461, wire rope b462, wire rope c463, and wire rope d464. One end of wire rope a461 and wire rope b462 is fixed to the balance beam assembly 411, and then passes through the fixed pulley assembly 412, the pressure wheel assembly 413, and the movable pulley assembly 42 in sequence before connecting to the second lifting drum 32. One end of wire rope c463 and wire rope d64 is fixed to the balance beam assembly 411, and then passes through the fixed pulley assembly 412, the pressure wheel assembly 413, and the movable pulley assembly 42 in sequence before connecting to the first lifting drum 31. This structure is configured as a twelve-rope three-dimensional structure (as per the attached instruction manual). Figure 4 The structure shown solves the problems of bulkiness, low efficiency, and poor maneuverability of traditional container coal unloading, reduces the swaying of the container body 5, and improves stability.

[0010] Preferably, the lifting drive mechanism 33 includes two lifting motors 36 and two reducers 34. The first lifting drum 31 and the second lifting drum 32 are both driven by the reducers 34 and the lifting motors 36. The two lifting motors 36 are arranged on the same axis. A drive shaft 35 is provided between the two reducers 34, and the two reducers 34 are connected by the drive shaft 35.

[0011] Preferably, the crane bridge 1 is also equipped with an electrical control system 14 and a guardrail 15.

[0012] Preferably, the top of the lifting frame 41 is provided with a cable retraction mechanism 47.

[0013] Usage process: In use, the longitudinal position of the crane bridge 1 is adjusted by the trolley traveling mechanism 13, and the trolley traveling motor is started, which drives the trolley traveling wheels to rotate. The trolley traveling motor of the trolley traveling mechanism 22 drives the trolley traveling wheels to rotate, thereby adjusting the lateral position of the crane trolley 2. Then, the two hoisting motors 36 on the hoisting mechanism 3 are started synchronously, and the lifting frame 41 is moved vertically by the wire rope 46. After the lifting frame 41 is moved to the top of the lifting frame 45, the rotary lock drive mechanism 43 is started, which drives the rotary lock 44 to be fixed on the lifting frame 45. Then, the box 5 is moved to the designated position by the crane bridge 1, and the tilting motor 61 on the tilting mechanism 6 is started. The tilting motor 61 drives the box 5 to tilt at a certain angle, thereby unloading the coal powder inside the box 5.

[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", 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 this utility model.

[0015] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A special unloading device for a pulverized coal container, comprising a horizontally arranged crane bridge, with a trolley traveling mechanism at both ends of the crane bridge, and a left-right movable lifting trolley mounted on the top of the crane bridge, the lifting trolley being equipped with a lifting mechanism, characterized in that: The lifting trolley is equipped with a lifting device below it, which includes a horizontally arranged lifting device frame. Each of the four corners of the top of the lifting device frame has a movable pulley assembly, and a balance beam assembly is installed in the middle of both sides of the top of the lifting device frame. Several vertically arranged rotary locks are rotatably mounted on the lifting device frame, and a rotary lock drive mechanism is provided at the top of the lifting device frame to drive the rotary locks. Below the lifting device frame is a horizontally arranged lifting frame, with lock slots at the top of the lifting frame corresponding to the rotary locks. Below the lifting frame is a box with an open top, and a flipping mechanism is provided between the box and the lifting frame, allowing the box to be mounted on the lifting frame. The lifting mechanism includes a first lifting drum and a second lifting drum mounted on the top of the lifting trolley. The first and second lifting drums are coaxially arranged. Lifting drive mechanisms for driving the first and second lifting drums are installed on the lifting trolley next to the first and second lifting drums. A wire rope connects the lifting device frame to the first and second lifting drums.

2. The special unloading device for a pulverized coal container according to claim 1, characterized in that: The crane trolley is equipped with fixed pulley assemblies and line pressing wheel assemblies that correspond one-to-one with the movable pulley assembly. The wire rope includes wire rope a, wire rope b, wire rope c and wire rope d. One end of wire rope a and wire rope b is fixed to the balance beam assembly, and then passes through the fixed pulley assembly, line pressing wheel assembly and movable pulley assembly in sequence before connecting to the second lifting drum. One end of wire ropes c and d is fixed to the balance beam assembly, and then passes through the fixed pulley assembly, the pressure wheel assembly and the movable pulley assembly in sequence before connecting to the first lifting drum.

3. A special unloading device for a pulverized coal container according to claim 1, characterized in that: The crane trolley includes a trolley frame, and a trolley traveling mechanism is provided at the bottom of the trolley frame. The trolley traveling mechanism includes trolley traveling wheels that are rotatably mounted on the trolley frame and a trolley traveling motor that is fixed on the trolley frame. The trolley traveling motor is connected to the trolley traveling wheels via a transmission.

4. A special unloading device for a pulverized coal container according to claim 1, characterized in that: The flipping mechanism includes a flipping motor fixed on the hanging frame, and a gear assembly is provided between the flipping motor and the housing. The housing is connected to the flipping motor through the gear assembly.

5. A special unloading device for a pulverized coal container according to claim 1, characterized in that: The hoisting drive mechanism includes two hoisting motors and two reducers. The first and second hoisting drums are both connected to the hoisting motors via the reducers. The two hoisting motors are arranged on the same axis. A drive shaft is provided between the two reducers, and the two reducers are connected via the drive shaft.

6. A special unloading device for a pulverized coal container according to claim 1, characterized in that: The crane bridge includes two parallel and spaced main beams, with two symmetrically arranged end beams between the two main beams. The two end beams are detachably fixed to both ends of the main beams, and the trolley traveling mechanism is assembled at both ends of the end beams.

7. A special unloading device for a pulverized coal container according to claim 6, characterized in that: The trolley traveling mechanism includes trolley traveling wheels and trolley traveling motor. The trolley traveling wheels are rotatably mounted on the end beam, and the trolley traveling motor is fixed on the end beam and connected to the trolley traveling wheels via a transmission.

8. A special unloading device for a pulverized coal container according to claim 1, characterized in that: The crane bridge is also equipped with an electrical control system and guardrails.

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