Duplex loosening mechanism for frozen coal

Abstract

The utility model relates to a duplex loosening mechanism for frozen coal, which belongs to the technical field of coal processing equipment and comprises a fixed frame, a duplex driving assembly is arranged at the lower end of the fixed frame, and a plurality of loosening heads are arranged at the lower end of the duplex driving assembly. And a plurality of lifting oil cylinders which are fixedly connected with the upper end of the duplex driving assembly are arranged in the fixed rack. The duplex driving assembly comprises a protective shell, a loosening connecting plate is arranged between the protective shell and the loosening head, and a loosening head driving motor fixedly connected with the loosening connecting plate is arranged at the rear end of the loosening head. The device has the characteristics of compact structure, convenience in operation and good running stability. The problem of crushing frozen coal is solved. And the situation that coal is bonded into blocks is avoided, and coal unloading and box body cleaning during train coal conveying are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing equipment, in particular to a double-link loosening mechanism for frozen coal. Background Art

[0002] Coal is an important basic energy source and industrial raw material in my country, and is widely used in thermal power generation, metallurgy, chemical industry, building materials and other industries. Due to the uneven distribution of coal in my country, coal-using enterprises often need to transport coal by train, which accounts for 70% of the national coal transportation volume. The outdoor temperature in the north in winter is generally around -10℃~30℃, and coal will inevitably stick during long-distance transportation.

[0003] There are two types of sticking: wet sticking and frozen sticking. After mining, coal undergoes a coal washing process. Washed coal has a certain moisture content. During transportation, due to moisture and vibration, the coal generally adheres tightly to train cars, causing wet sticking.

[0004] Frost sticking is a natural phenomenon in which moisture freezes at the interface of objects in low temperatures, causing them to adhere and freeze. Coal sticking is particularly prominent on the bottom and walls of coal cars, often forming pockets. Statistics show that the average coal sticking rate on coal trains is around 15%. In winter, when outdoor temperatures are low, the rate can reach 30% to 60%. In severe cases, the entire car can freeze solid, significantly impacting unloading operations by the dumper.

[0005] There's currently no effective solution to the problem of frozen coal. Coal-using companies widely rely on manual cleaning and the establishment of greenhouses to clean frozen coal from train cars. Manual cleaning is time-consuming, labor-intensive, and extremely inefficient. Cleaning a train car with 400mm of frozen coal can take a team of workers three hours. This method also presents challenges such as poor working conditions, high labor intensity, unsafe work processes, high labor costs, and environmentally unfriendly cleaning processes. The establishment of greenhouses, which primarily utilize steam, infrared, and microwave heating methods, also presents significant initial investment, significant floor space, high energy consumption, and low overall unloading efficiency. Summary of the Invention

[0006] This utility model primarily addresses the shortcomings of the prior art by providing a double-link loosening mechanism for frozen coal. It features a compact structure, convenient operation, and excellent operational stability. It solves the problem of crushing frozen coal, prevents coal from clumping, and facilitates unloading and cleaning of coal boxes during train transport.

[0007] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0008] A double-link loosening mechanism for frozen coal includes a fixed frame, a double-link drive assembly disposed at its lower end, and several loosening heads disposed at its lower end. The fixed frame houses several lifting cylinders fixedly connected to the upper end of the double-link drive assembly. The double-link drive assembly includes a protective housing, a loosening connection plate disposed between the protective housing and the loosening heads, and a loosening head drive motor disposed at the rear end of the loosening head, fixedly connected to the loosening connection plate.

[0009] Preferably, the loose connection plate is provided with a rotating motor fixedly connected to the protective housing.

[0010] Preferably, the upper portion of the protective housing is provided with a power supply connection connected to the loosening head drive motor and the rotating motor.

[0011] Preferably, the upper end of the protective shell is provided with a lifting anchor pipe with a hollow structure, and the upper and lower ends of the lifting anchor pipe are provided with guide roller seats that are connected to the power supply connecting joint, and a plurality of rollers are provided on the periphery of the guide roller seat.

[0012] Preferably, a positioning guide rail is provided between the roller and the fixed frame and is integrally welded and fixed to the fixed frame. The roller and the positioning guide rail are connected to each other in an embedded plug-in sliding manner.

[0013] Preferably, an ear plate connecting seat is provided between the guide roller seat and the protective shell, and is fixedly connected to the lifting cylinder via a pin shaft.

[0014] Preferably, a cylinder fixing seat is provided between the upper portion of the fixed frame and the lifting cylinder.

[0015] The utility model can achieve the following effects:

[0016] This utility model provides a double-link loosening mechanism for frozen coal. Compared with existing technologies, it has the characteristics of compact structure, convenient operation, and good running stability. It solves the problem of crushing frozen coal, prevents coal from sticking together, and facilitates coal unloading and box cleaning during train transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a front view structural schematic diagram of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0021] In the figure: fixed frame 1, cylinder fixing seat 2, lifting cylinder 3, positioning guide rail 4, guide roller seat 5, roller 6, lifting anchor pipe 7, double drive assembly 8, loosening head 9, ear plate connecting seat 10, loosening connecting plate 11, loosening head drive motor 12, protective shell 13, rotating motor 14, power supply receiving joint 15. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figure 1-4 As shown, a double-link loosening mechanism for frozen coal includes a fixed frame 1, a double-link drive assembly 8 disposed at the lower end of the fixed frame 1, two symmetrically distributed loosening heads 9 disposed at the lower end of the double-link drive assembly 8, a pair of lifting cylinders 3 fixedly connected to the upper end of the double-link drive assembly 8 disposed within the fixed frame 1, and a cylinder fixing seat 2 disposed between the upper portion of the fixed frame 1 and the lifting cylinders 3. The double-link drive assembly 8 includes a protective housing 13, a loosening connecting plate 11 disposed between the protective housing 13 and the loosening heads 9, a loosening head drive motor 12 fixedly connected to the loosening connecting plate 11 disposed at the rear end of the loosening head 9, and a rotary motor 14 fixedly connected to the protective housing 13 disposed on the loosening connecting plate 11. A power supply connector 15 is disposed at the upper portion of the protective housing 13, in phase circuit communication with the loosening head drive motor 12 and the rotary motor 14. A hollow lift anchor tube 7 is installed at the upper end of the protective housing 13. Guide roller seats 5, which intersect with the power supply connector 15, are located at both the upper and lower ends of the lift anchor tube 7. Four rollers 6 are mounted on the periphery of the guide roller seat 5. Positioning guide rails 4, integrally welded to the fixed frame 1, are installed between the rollers 6 and the protective housing 13. The rollers 6 are connected to the positioning guide rails 4 in a snap-fitting, plug-in, and sliding manner. An ear plate connector 10, pin-engaged and secured to the lift cylinder 3, is located between the guide roller seat 5 and the protective housing 13.

[0024] In summary, this double-link loosening mechanism for frozen coal features a compact structure, convenient operation, and excellent operational stability. It solves the problem of crushing frozen coal, prevents coal from clumping together, and facilitates unloading and cleaning of coal boxes during train transportation.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0026] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A double loosening mechanism for frozen coal, characterized by: The invention comprises a fixed frame (1), wherein a double drive assembly (8) is provided at the lower end of the fixed frame (1), a plurality of loosening heads (9) are provided at the lower end of the double drive assembly (8), and a plurality of lifting cylinders (3) connected and fixed to the upper end of the double drive assembly (8) are provided in the fixed frame (1); the double drive assembly (8) comprises a protective shell (13), a loosening connecting plate (11) is provided between the protective shell (13) and the loosening head (9), and a loosening head driving motor (12) connected and fixed to the loosening connecting plate (11) is provided at the rear end of the loosening head (9).

2. The double-link loosening mechanism for frozen coal according to claim 1, characterized in that: The loose connection plate (11) is provided with a rotating motor (14) that is fixedly connected to the protective housing (13).

3. The double-link loosening mechanism for frozen coal according to claim 2, characterized in that: The upper portion of the protective housing (13) is provided with a power supply receiving connector (15) which is in electrical communication with the loosening head drive motor (12) and the rotating motor (14).

4. The double-link loosening mechanism for frozen coal according to claim 3, characterized in that: The upper end of the protective shell (13) is provided with a lifting anchor pipe (7) with a hollow structure, and the upper and lower ends of the lifting anchor pipe (7) are both provided with a guide roller seat (5) that is connected to the power supply receiving joint (15), and the outer periphery of the guide roller seat (5) is provided with a plurality of rollers (6).

5. The double-link loosening mechanism for frozen coal according to claim 4, characterized in that: A positioning guide rail (4) is provided between the roller (6) and the fixed frame (1) and is welded and fixed to the fixed frame (1) in an integrated manner. The roller (6) and the positioning guide rail (4) are connected to each other in a snap-fitting, plug-in and sliding manner.

6. The double-link loosening mechanism for frozen coal according to claim 4, characterized in that: An ear plate connecting seat (10) is provided between the guide roller seat (5) and the protective shell (13) and is fixedly connected to the lifting cylinder (3) by a pin.

7. The double-link loosening mechanism for frozen coal according to claim 1, characterized in that: A cylinder fixing seat (2) is provided between the upper portion of the fixed frame (1) and the lifting cylinder (3).

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