Extrusion type disconnect transmission structure, double shaft transmission mechanism and blast furnace ore coke chute bin

Abstract

The application discloses an extrusion type disconnection transmission structure, a double-shaft transmission mechanism and a blast furnace coke chute bin, and belongs to the field of blast furnace ironmaking equipment, and comprises a bin shell, a feeding hopper is arranged on the top of the bin shell, a discharge port is arranged at the bottom, an installation cylinder is arranged between the feeding hopper and the discharge port, a plurality of side discharge ports arranged in the vertical direction are arranged on the side surface of the installation cylinder, a storage space is formed between the installation cylinder and the bin shell, and two extrusion type disconnection transmission structures are arranged on the side surface of the installation cylinder. Through the arrangement of the plurality of alternately arranged swing plates, a zigzag material sliding channel is formed, the coke is allowed to fall without collision during the feeding process, the extrusion type disconnection transmission structure connected with the swing plate is used, the coke is prevented from being broken or the device from being damaged due to the mutual extrusion of the swing plate and the accumulated coke, and the stable feeding of the coke bin to the ironmaking equipment when the coke is at a high position is ensured.

Description

Technical Field

[0001] This invention relates to the field of blast furnace ironmaking equipment, and in particular to a compression-type disconnected transmission structure, a dual-shaft transmission mechanism, and a blast furnace ore and coke bin. Background Technology

[0002] The blast furnace ore and coke bin is a facility used to store furnace materials. The furnace materials (coke and ore) for trial use in ironmaking blast furnaces need to be transferred to the blast furnace ore and coke bin via a conveying device. During the transfer process, the furnace materials are loaded from the top of the bin for temporary storage, and then discharged from the bottom of the bin. After being screened by a vibrating screen, the qualified large-particle furnace materials are calculated for batching, mixed according to the proportion, and then sent into the blast furnace for smelting. Blast furnace production requires coke particles ≥12mm in size and uniform in size.

[0003] The furnace charge discharged from the bottom of the silo is screened by a vibrating screen to remove small particles. The screened-out small particles are then returned to the sintering process for recycling. However, the vibrating screen cannot completely remove small particles, and some still enter the blast furnace. The higher the proportion of small particles in the furnace charge discharged from the silo, the more small particles will enter the blast furnace, thus reducing the permeability of the blast furnace and seriously affecting its production.

[0004] In existing blast furnace coke bins, when coke is loaded from the top of the bin, it falls directly to the bottom, typically from several meters to over ten meters. This direct fall of coke can cause it to break, producing a large amount of small-particle powder. In addition, some bins are equipped with buffer structures to cushion the falling coke and prevent it from shattering. However, such designs can easily lead to blockages and jamming at the buffer structures, affecting the supply of coke into the bin. Summary of the Invention

[0005] To address the issue of material jamming and blockage in the coke feeding channel caused by the use of fixed buffer plates in the blast furnace coke bin to prevent coke from falling, this invention provides a compression-type disconnected transmission structure, a dual-shaft transmission mechanism, and a blast furnace coke bin. This structure can prevent coke from falling after it is fed into the bin and avoid the compression and blockage caused by the buffer measures installed inside the bin.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A compression-type disconnect transmission structure includes several coaxially arranged shaft segments with gaps between adjacent shaft segments. A coupling mechanism is arranged within the gaps. The coupling mechanism includes a coupling member and a compression block that can move in the vertical direction of the shaft. The coupling member is a cylindrical structure with spline grooves inside. The coupling member slides with the spline teeth of the shaft segments on both sides through the internal spline grooves. Each shaft segment has a reciprocating lead screw section in the middle, and the two ends of the reciprocating lead screw section form a transmission rod. The coupling is connected to the extrusion block via a downwardly inclined connecting rod assembly.

[0007] As another optimized solution of the above-mentioned extrusion-type disconnection transmission structure, the connecting rod assembly includes a connecting ring rotatably connected to the outer periphery of the coupling, a connecting block fixedly connected to one side of the connecting ring, the connecting block being slidably mounted on a guide frame parallel to the extension direction of the spline groove of the coupling, and a diagonal rod rotatably connected to one end of the connecting block, the end of the diagonal rod away from the connecting block being hinged to the extrusion block.

[0008] A dual-shaft transmission mechanism includes two parallel extrusion-type disconnect transmission structures and a connecting structure located between the two extrusion-type disconnect transmission structures. The extrusion-type disconnect transmission structure is the extrusion-type disconnect transmission structure described above. The connecting structure includes a horizontally arranged transmission shaft, with second bevel gears fixedly connected to both ends of the transmission shaft. The second bevel gears mesh with a first bevel gear coaxially fixed on a transmission rod.

[0009] A blast furnace coke bin includes a bin shell, a feeding hopper installed on the top of the bin shell, and a discharge port provided at the bottom. An installation cylinder is provided between the feeding hopper and the discharge port. Several side discharge ports arranged vertically are provided on the side of the installation cylinder, and a storage space is formed between the installation cylinder and the bin shell. Several rotating shafts are rotatably installed inside the installation cylinder. The rotating shafts are located on both sides of the inner wall of the installation cylinder and are arranged in a zigzag pattern. Swing plates are fixedly connected to the rotating shafts. The swing plates swing back and forth within a set angle. At the first extreme position, two adjacent swing plates can form a first inclined plane. At the second extreme position, two adjacent swing plates can form a second inclined plane. The first inclined plane and the second inclined plane form a coke dropping channel. One end of the rotating shaft extends out of the mounting cylinder and is fixedly connected to a rocker arm. A lifting block that moves up and down is fitted into a groove opened along the length direction on the rocker arm. The mounting cylinder is provided with the above-mentioned dual-axis transmission mechanism on its side. Each reciprocating screw segment in the dual-axis transmission mechanism controls one of the lifting blocks to move up and down reciprocally. The lifting block is slidably connected to a guide rod that is parallel to the reciprocating screw segment. In the dual-shaft transmission mechanism, the extrusion block is slidably connected to the mounting cylinder through a protective shell, and the pressure-bearing surface of the extrusion block is located in the storage space. It is displaced by the coal in the storage space, thereby causing the coupling to disengage from a transmission rod. The connecting structure in the dual-shaft transmission mechanism is located above the coke material layer inside the mounting cylinder.

[0010] As another optimized solution for the aforementioned blast furnace coke bin, the extrusion block in the dual-shaft transmission mechanism is fixedly connected to two limiting edges on the surface where it connects to the protective shell. The limiting edges are located on the inner and outer sides of the protective shell, respectively.

[0011] As another optimized solution for the aforementioned blast furnace coke bin, a spring is installed between the extrusion block and the mounting cylinder in the dual-shaft transmission mechanism, which is arranged along the sliding direction of the extrusion block.

[0012] As another optimized solution for the aforementioned blast furnace coke bin, the reciprocating screw section in the dual-shaft transmission mechanism is rotatably connected to the mounting cylinder via a fixed seat.

[0013] As another optimized solution for the aforementioned blast furnace coke bin, grooves are provided on the surface of the swing plate that contacts the coke.

[0014] As another optimized solution for the aforementioned blast furnace coke bin, an inclined plate is fixedly connected to the bottom inner side of the feeding hopper, and the inclined plate abuts against the swing plate at the second extreme position.

[0015] As another optimized solution for the blast furnace coke bin, the side discharge ports are evenly spaced along the length of the mounting cylinder, and each side discharge port corresponds to a coke dropping channel formed by two adjacent swing plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1) This invention uses multiple alternating swing plates to swing up and down during the feeding process of the hopper. The swing plates in the left and right positions can cooperate to form a changing zigzag material chute, so that the coke falls without collision during the feeding process of the hopper. The continuously moving swing plates can also effectively prevent blockages such as jamming and sticking, ensuring a stable blast furnace coke hopper feeding process. 2) An extrusion-type disconnection transmission structure is set up. When coke is gradually filling the silo from bottom to top, whenever coke is filled to an extrusion block position, the power input of the power mechanism corresponding to the swing plate can be automatically disconnected by pushing the coupling. No manual intervention or monitoring is required, which avoids coke breakage or equipment damage caused by the mutual extrusion of the swing plate and coke. It ensures a stable supply of coke from the silo to the ironmaking equipment when the coke is at a high level.

[0017] The additional technical features and advantages of the present invention will become more apparent from the following description, or may be learned through practice of the invention. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the outer shell of the silo in this invention; Figure 2 This is a sectional view of the mounting cylinder when the swing plate is in its first state; Figure 3 This is a sectional view of the mounting cylinder when the swing plate is in its first state; Figure 4 This is a schematic diagram of the mounting cylinder and coupling mechanism; Figure 5 This is a schematic diagram showing the connection between the power mechanism and the coupling mechanism in this invention; Figure 6 This is a schematic diagram of the dual-shaft transmission mechanism in this invention; Figure 7 This is a structural schematic diagram of the swing plate, power mechanism, and coupling mechanism; Figure 8 This is a side sectional view of the protective casing; Figure 9 This is a schematic diagram showing the connection between the rotating shaft, the swing plate, and the power mechanism; Figure 10 This is a structural schematic diagram of the power mechanism and drive components; The reference numerals in the attached drawings are explained as follows: 1. Hopper shell, 2. Feed hopper, 3. Inclined plate, 4. Mounting cylinder, 41. Side discharge port, 42. Base frame, 5. Rotating shaft, 6. Swing plate, 61. Groove, 71. Rocker arm, 72. Sliding shaft, 73. Lifting block, 74. Drive assembly, 741. Fixed seat, 742. Reciprocating screw section, 743. Guide rod, 75. Motor, 76. Connecting structure, 761. Transmission rod, 762. First bevel gear, 763. Second bevel gear, 764. Transmission shaft, 765. Connecting seat, 8. Coupling mechanism, 81. Coupling component, 82. Connecting ring, 83. Connecting block, 84. Connecting shaft, 85. Inclined rod, 86. Extrusion block, 87. Limiting edge, 88. Spring, 89. Guide frame, 9. Protective shell. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. Parts not explained in the following embodiments of the present invention, such as the selection and materials of the silo discharge assembly, maintenance manhole and other supporting components, motor and transmission assembly, etc., are all considered to be prior art known or should be known by those skilled in the art.

[0020] Example 1

[0021] like Figure 9 and Figure 10As shown, a compression-type disconnect transmission structure includes several coaxially arranged shaft segments. The shaft segments are installed vertically, with gaps between adjacent segments. A coupling mechanism 8 is installed within these gaps. The coupling mechanism 8 includes a coupling member 81 and a compression block 86 capable of translational movement in the vertical direction of the shaft. The coupling member 81 is a cylindrical structure with an internal spline groove extending along its length, with the center of the spline groove located on the axis of the coupling member 81. The coupling member 81 slides with the spline teeth of the shaft segments on both sides through its internal spline groove. When the coupling 81 moves along the axial direction of the shaft segment, the coupling 81 can disengage the spline teeth of one shaft segment, thereby disconnecting two adjacent shaft segments. Each shaft segment has a reciprocating lead screw segment 742 in the middle, and the two ends of the reciprocating lead screw segment 742 form a transmission rod 761. The spline groove of each shaft segment is located at the end of the transmission rod 761. This arrangement forms a shaft composed of multiple independent shaft segments, which are connected by the coupling 81, so that two adjacent shafts rotate synchronously. The coupling 81 can slide and disconnect the connection between the two shafts, realizing the shaft segment disconnection function. The coupling 81 is connected to the pressing block 86 via a downwardly inclined connecting rod assembly. When the pressing block 86 is pressed, the connecting rod assembly can push the coupling 81 upward, causing the coupling 81 to disengage from the shaft section below it and disconnect the connection between the two shafts.

[0022] In this embodiment, as Figure 10 As shown, the connecting rod assembly includes a connecting ring 82 rotatably connected to the outer periphery of the coupling 81. A connecting block 83 is fixedly connected to one side of the connecting ring 82. The arrangement of the connecting ring 82 ensures that when the coupling 81 rotates synchronously with the transmission rod 761, it does not affect the connection block 83 from remaining stationary. Furthermore, when the connection block 83 moves up and down, the coupling 81 can still maintain synchronous rotation with the transmission rod 761. The connection block 83 is slidably mounted on a guide frame 89 parallel to the extension direction of the spline groove of the coupling 81. The guide frame 89 guides the movement of the connection block 83, allowing the connection block to move smoothly. 83 and connecting ring 82 can only move along the spline groove extension direction of coupling 81, and one end of connecting block 83 is rotatably connected to inclined rod 85 through connecting shaft 84 integrally formed with it. The end of inclined rod 85 away from connecting shaft 84 is hinged to pressing block 86. When pressing block 86 is pressed and moved, pressing block 86 can push connecting ring 82 and connecting block 83 to move along guide frame 89 through inclined rod 85, so that coupling 81 can move at the end of transmission rod 761, and finally disengage one end of coupling 81 from one transmission rod 761, thus disconnecting the connection between the two shaft segments.

[0023] Example 2

[0024] like Figure 6 and Figure 7As shown, a dual-shaft transmission mechanism includes two parallel extrusion-type disconnection transmission structures and a connecting structure 76 located between the two extrusion-type disconnection transmission structures. The extrusion-type disconnection transmission structure is the extrusion-type disconnection transmission structure in Embodiment 1. The connecting structure 76 includes a horizontally arranged transmission shaft 764, which is rotatably connected to an external mounting cylinder 4 via a connecting seat 765. Second bevel gears 763 are fixedly connected to both ends of the transmission shaft 764. The second bevel gears 763 mesh with a first bevel gear 762 coaxially fixed on a transmission rod 761. With this arrangement, when the shaft segment of one of the extrusion-type disconnection transmission structures rotates, the first bevel gear 762 on its transmission rod 761 drives the first bevel gear 762 and the second bevel gear 763 on the other side to rotate through the second bevel gear 763 and the transmission rod 761. This transmission mechanism enables the two extrusion-type disconnection transmission structures to rotate synchronously, achieving the purpose of synchronous rotation of the dual shafts.

[0025] Example 3

[0026] like Figure 1 As shown, a blast furnace coke hopper includes a hopper shell 1. A feeding hopper 2 is installed on the top of the hopper shell 1, and a discharge port is provided at the bottom. An installation cylinder 4 is provided between the feeding hopper 2 and the discharge port. The bottom of the installation cylinder 4 is reinforced to the hopper shell 1 by several base frames 42, which helps to enhance the structural strength of the installation cylinder 4. Several side discharge ports 41 arranged vertically are provided on the side of the installation cylinder 4, and a storage space is formed between the installation cylinder 4 and the hopper shell 1. Coke is fed into the hopper shell 1 from the feeding hopper 2, discharged from the side discharge ports 41 through the installation cylinder 4, and accumulated in the storage space inside the hopper shell 1, ensuring a stable supply of coke in the steelmaking process. Several rotating shafts 5 are rotatably installed inside the installation cylinder 4. The rotating shafts 5 are located on both sides of the inner wall of the installation cylinder 4 and arranged in a zigzag pattern. A swing plate 6 is fixedly connected to the rotating shaft 5. The swing plate 6 swings back and forth within a set angle, such as... Figure 1 As shown, at the first extreme position, two adjacent swing plates 6 can form a first inclined plane. At this time, on the vertical plane, all the swing plates 6 form several parallel inclined straight lines, such as... Figure 2 As shown, at the second extreme position, two adjacent swing plates 6 can form a second inclined surface. The first inclined surface and the second inclined surface constitute a coke falling channel. During the swinging process of the swing plate 6, the coke slides down from top to bottom to the bottom of the storage space along the coke falling channel formed by the swing plate 6. As the height of the material layer increases, the coke will be discharged from each side discharge port 41 and gradually stored in the outer shell 1 of the silo, eventually reaching the preset storage height. One end of the rotating shaft 5 extends out of the mounting cylinder 4 and is fixedly connected to a rocker arm 71. The rocker arm 71 can drive the swing plate 6 to swing back and forth through the rotating shaft 5. A lifting block 73 that moves up and down is sleeved in a groove opened along the length direction on the rocker arm 71. A sliding shaft 72 deep in the lifting block 73 is sleeved in the groove. When the lifting block 73 moves up and down, the rocker arm 71 swings back and forth around the axis of the rotating shaft 5, which can convert linear motion into circular motion and provide power for the movement of the swing plate 6. The mounting cylinder 4 is provided with a dual-axis transmission mechanism as described in Embodiment 2. Each reciprocating screw segment 742 in the dual-axis transmission mechanism controls a lifting block 73 to reciprocate up and down. The lifting block 73 is slidably connected to a guide rod 743 arranged parallel to the reciprocating screw segment 742. The reciprocating screw segment 742 and the lifting block 73 can be connected in the form of a ball screw pair to ensure the stability of the transmission. The connection and transmission effect at this point are existing technologies and will not be described in detail here. A motor 75 is fixedly connected inside the protective shell 9. The drive shaft of the motor 75 is connected to a transmission rod 761 at the top through a coupling. When the reciprocating screw segment 742 rotates, due to the threaded engagement between the reciprocating screw segment 742 and the lifting block 73, the lifting block 73 can reciprocate along the axial direction of the guide rod 743. The extrusion block 86 in the dual-shaft transmission mechanism is slidably connected to the mounting cylinder 4 through a protective shell 9. The protective shell 9 covers the dual-shaft transmission mechanism, providing protection and preventing coal from extruding the dual-shaft transmission mechanism. The pressure-bearing surface of the extrusion block 86 is located within the storage space, and it is displaced by the coal extrusion within the storage space, thereby disengaging the coupling 81 from a transmission rod 761. When coal accumulates in the storage space from bottom to top, the extrusion force generated by the coal accumulation at the height of an extrusion block 86 pushes the extrusion block 86 into the interior of the protective shell 9. It also pushes the connecting shaft 84 upward along the guide frame 89 through the inclined rod 85. The connecting shaft 84 drives the connecting ring 82 and the coupling 81 upward through the connecting block 83. In this way, the coupling 81 disengages from the transmission rod 761 below it, causing the rotating shaft 5 and the swing plate 6 at that point to stop moving, preventing the coke dual-shaft transmission mechanism from jamming. The connecting structure 76 in the dual-shaft transmission mechanism is set above the coke material layer inside the mounting cylinder 4. This arrangement ensures that as the coal material layer accumulates to the highest level, the connecting structure 76 always connects the two extrusion-type disconnected transmission structures, thus playing a transmission role between the two shaft segments.

[0027] In this embodiment, two limiting edges 87 are fixedly connected to the surface of the extrusion block 86 in the dual-shaft transmission mechanism that connects to the protective shell 9. The limiting edges 87 are located on the inner and outer sides of the protective shell 9, respectively. The limiting edges 87 are used to limit the range of motion of the extrusion block 86 and prevent the extrusion block 86 from sliding off the protective shell 9.

[0028] In this embodiment, as Figure 8 As shown, a spring 88 is installed between the extrusion block 86 and the mounting cylinder 4 in the dual-shaft transmission mechanism, which is arranged along the sliding direction of the extrusion block 86. The spring 88 is used to push the pressure surface of the extrusion block 86 to move into the storage space. When the coal is piled up, there is enough room for the coupling 81 to move upward and thus disengage from the transmission rod 761.

[0029] In this embodiment, the reciprocating lead screw segment 742 in the dual-axis transmission mechanism is rotatably connected to the mounting cylinder 4 via a fixed seat 741. The fixed seat 741, the reciprocating lead screw segment 742, and the guide rod 743 constitute a drive assembly 74. The various drive assemblies 74 are connected in series. The fixed seat 741 provides support and connection for the reciprocating lead screw segment 742. The fixed seat 741 and the reciprocating lead screw segment 742 can be connected by bearings to ensure the smoothness of transmission between the various shaft segments.

[0030] In this embodiment, the surface of the swing plate 6 that contacts the coke is provided with a groove 61, which is conducive to the movement of the coke along the coke falling channel and avoids deviation and premature discharge from the side discharge port 41 at the upper position, which would cause the coke to fall.

[0031] In this embodiment, an inclined plate 3 is fixedly connected to the bottom inner side of the feeding hopper 2. The inclined plate 3 abuts against the swing plate 6 at the second extreme position. The setting of the inclined plate 3 is conducive to the coke entering the coke falling channel smoothly. As the inclined plate 3 swings, it moves downward in a zigzag trajectory.

[0032] In this embodiment, the side discharge ports 41 are evenly spaced along the length of the mounting cylinder 4, and each side discharge port 41 corresponds to a coke falling channel formed by two adjacent swing plates 6. As the coke height in the storage space increases, the coke moving along the coke falling channel will be discharged from each side discharge port 41 in sequence and accumulate in the storage space.

[0033] Working principle: In the initial state of the device, the storage space inside the outer shell 1 of the hopper is empty. The swing plates 6 inside the mounting cylinder 4 are parallel, and the extrusion block 86 is pushed by the spring 88. The pressure surface is away from the outer wall of the protective shell 9 and extends into the storage space. The extrusion block 86 pulls the connecting shaft 84 and the connecting block 83 through the inclined rod 85. The connecting block 83 restricts the coupling 81 to the transmission rod 761 of the two shaft segments through the connecting ring 82. The spline of the transmission rod 761 and the coupling 81 have overlapping parts to play a transmission role. When filling coke into the outer shell 1 of the silo, the motor 75 is started. The motor 75 drives the various drive components 74 of a compression-type disconnected transmission structure to move, and through the transmission action of the connecting structure 76, it drives another set of compression-type disconnected transmission structures to move synchronously. The reciprocating screw section 742 in the drive component 74 rotates synchronously. When the reciprocating screw section 742 rotates, it can drive the lifting block 73 to move up and down reciprocally. The lifting block 73 drives the rocker arm 71 to swing back and forth within a limited angle through the sliding shaft 72. The rocker arm 71 drives the swing plate 6 to swing back and forth through the rotating shaft 5. During feeding, coke is put into the outer shell 1 of the silo from the feeding hopper 2. The coke slides along the inclined plate 3 into the mounting cylinder 4. After entering the mounting cylinder 4, the coke moves with the reciprocating swing plate 6. During the movement, it slides down along the zigzag coke falling channel formed by the swing plate 6. In this stage, coke falls from the bottom opening of the mounting cylinder 4 into the storage space. As the coke accumulates from bottom to top, whenever the coke accumulates to the position of a pressing block 86, the weight of the accumulated coke will push the pressure surface of the pressing block 86 to move inside the protective shell 9. The pressing block 86 overcomes the elastic movement of the spring 88 and pushes the connecting shaft 84 and the connecting block 83 to move through the inclined rod 85. The connecting block 83 pushes the coupling 81 to move upward along the axis of the transmission rod 761 through the connecting ring 82 until the coupling 81 disengages from the transmission rod 761 connected to it below. At this time, the transmission rod 761 at this position stops rotating, and the corresponding swing plate 6 also stops swinging. In this stage, the coke will be discharged from the side discharge port 41 on the side of the mounting cylinder 4 and continue to accumulate in the storage space until the coke accumulates to the planned accumulation height, at which point feeding is suspended. When maintaining the silo, maintenance personnel enter the empty silo through the manhole. In addition to necessary cleaning and maintenance work, they also need to check the wear of the spline, connecting structure 76, spring 88, bearing and swing plate 6, clean the dust and material accumulated in the mounting cylinder 4 and reset the swing plate 6 to a parallel state for the next feeding.

[0034] In the description of this invention, 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 invention 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 invention.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A compression-type disconnection transmission structure, characterized in that: It includes several coaxial shaft segments with gaps between adjacent shaft segments. A coupling mechanism (8) is provided in the gaps. The coupling mechanism (8) includes a coupling member (81) and a pressing block (86) that can move in the vertical direction of the shaft. The coupling member (81) is a cylindrical structure with a spline groove inside. The coupling member (81) slides with the spline teeth of the shaft segments on both sides through the spline groove inside. Each shaft segment has a reciprocating lead screw segment (742) in the middle. The two ends of the reciprocating lead screw segment (742) form a transmission rod (761). The coupling (81) is connected to the extrusion block (86) via a downwardly inclined connecting rod assembly.

2. The extrusion-type disconnection transmission structure according to claim 1, characterized in that: The connecting rod assembly includes a connecting ring (82) rotatably connected to the outer periphery of the coupling (81), a connecting block (83) fixedly connected to one side of the connecting ring (82), the connecting block (83) being slidably mounted on a guide frame (89) parallel to the spline extension direction of the coupling (81), and a diagonal rod (85) rotatably connected to one end of the connecting block (83), the end of the diagonal rod (85) away from the connecting block (83) being hinged to the pressing block (86).

3. A dual-shaft transmission mechanism, comprising two parallel extrusion-type disconnect transmission structures and a connecting structure (76) located between the two extrusion-type disconnect transmission structures, characterized in that: The extrusion-type disconnect transmission structure is the extrusion-type disconnect transmission structure described in claim 1. The connection structure (76) includes a horizontally arranged transmission shaft (764). The two ends of the transmission shaft (764) are fixedly connected to a second bevel gear (763). The second bevel gear (763) meshes with a first bevel gear (762) that is coaxially fixed on the transmission rod (761).

4. A blast furnace coke bin, comprising a bin shell (1), a feeding hopper (2) installed on the top of the bin shell (1), and a discharge port provided at the bottom, characterized in that: An installation cylinder (4) is provided between the feeding hopper (2) and the discharge port. Several side discharge ports (41) are arranged vertically on the side of the installation cylinder (4). The installation cylinder (4) and the outer shell (1) of the hopper form a storage space. Several rotating shafts (5) are rotatably provided inside the installation cylinder (4). The rotating shafts (5) are located on both sides of the inner wall of the installation cylinder (4) and are arranged in a zigzag pattern. A swing plate (6) is fixedly connected to the rotating shaft (5). The swing plate (6) swings back and forth within a set angle. At the first extreme position, two adjacent swing plates (6) can form a first inclined surface. At the second extreme position, two adjacent swing plates (6) can form a second inclined surface. The first inclined surface and the second inclined surface form a coke falling channel. One end of the rotating shaft (5) extends out of the mounting cylinder (4) and is fixedly connected to a rocker arm (71). A lifting block (73) that moves up and down is fitted in a groove opened along the length direction on the rocker arm (71). The mounting cylinder (4) is provided with a dual-axis transmission mechanism as described in claim 3 on its side. Each reciprocating screw segment (742) in the dual-axis transmission mechanism controls a lifting block (73) to perform up-and-down reciprocating motion. The lifting block (73) is slidably connected to a guide rod (743) that is parallel to the reciprocating screw segment (742). In the dual-shaft transmission mechanism, the extrusion block (86) is slidably connected to the mounting cylinder (4) through a protective shell (9), and the pressure surface of the extrusion block (86) is located in the storage space. It is displaced by the coal in the storage space, thereby causing the coupling (81) to disengage from a transmission rod (761). The connecting structure (76) in the dual-shaft transmission mechanism is located above the coke material layer inside the mounting cylinder (4).

5. A blast furnace coke bin according to claim 4, characterized in that: The extrusion block (86) in the dual-shaft transmission mechanism has two fixed limiting edges (87) on the surface where it connects with the protective shell (9). The limiting edges (87) are located on the inner and outer sides of the protective shell (9). According to claim 4, a blast furnace coke bin is characterized in that: a spring (88) is installed between the extrusion block (86) and the mounting cylinder (4) in the dual-shaft transmission mechanism, which is arranged along the sliding direction of the extrusion block (86).

6. A blast furnace coke bin according to claim 4, characterized in that: The reciprocating lead screw section (742) in the dual-shaft transmission mechanism is rotatably connected to the mounting cylinder (4) via a fixed seat (741). According to claim 4, a blast furnace coke bin is characterized in that: the surface of the swing plate (6) in contact with the coke is provided with a groove (61).

7. A blast furnace coke bin according to claim 4, characterized in that: An inclined plate (3) is fixedly connected to the bottom of the inner side of the feeding hopper (2), and the inclined plate (3) abuts against the swing plate (6) at the second extreme position.

8. A blast furnace coke bin according to claim 4, characterized in that: The side discharge ports (41) are evenly spaced along the length of the mounting cylinder (4), and each side discharge port (41) corresponds to the coke falling channel formed by two adjacent swing plates (6).

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