Variable-amplitude suspension type cement silo cleaning machine and silo cleaning method

Abstract

The invention discloses a variable-amplitude suspension type cement silo cleaning machine and a silo cleaning method, and belongs to the technical field of cement silo cleaning equipment. The device comprises a mounting mechanism, the mounting mechanism is connected with a limiting mechanism through a connecting mechanism, and the limiting mechanism is connected with a cleaning head; the limiting mechanism adopts a crossed connecting rod structure, the crossed connecting rod structure comprises two groups of connecting rod units which are distributed in parallel, each connecting rod unit comprises a pair of connecting rods which are hinged in a crossed manner, and the corresponding free ends of the connecting rods are connected through a connecting shaft; a pair of lugs is arranged on the upper connecting plate, and the lugs are connected with the connecting mechanism through a central shaft; the center shaft is sleeved with an adjusting nut, a friction plate and an elastic piece located between the adjusting nut and the friction plate. By means of the geometrical characteristics of the crossed connecting rod structure, left-right deflection of the cleaning head is effectively limited; meanwhile, front-back swing of the cleaning head is restrained through friction resistance of the friction plates.

Description

Technical Field

[0001] This invention belongs to the technical field of cement silo cleaning equipment, and more specifically, relates to a variable amplitude suspended cement silo cleaning machine and a cleaning method. Background Technology

[0002] A cement silo is a large, enclosed tank primarily used for storing bulk cement, typically in construction and water conservancy projects. Existing cement plants generally store large quantities of bulk cement, which is concentrated in cement silos. Over time, the continuous accumulation of cement can cause it to harden or adhere to the inner walls of the silo, leading to blockages at the discharge port and hindering material flow. Therefore, daily maintenance and regular cleaning of the cement silos are essential during production.

[0003] Currently, there are two main methods for cleaning cement silos: one is manual cleaning, which is not only inefficient and time-consuming, but also causes serious harm to the respiratory system of cleaning personnel due to dust, and is also prone to safety accidents; the other is to use mechanical equipment to clean cement silos, which is efficient and safe, and is gradually being widely used.

[0004] For example, patent CN211971111U discloses a cement silo cleaning device. This application, by setting a rotating support mechanism, enables a telescopic support mechanism to rotate within the cement silo; by setting a power mechanism, it provides a power source for the entire cleaning device, allowing the telescopic support mechanism and the crushing mechanism to move up and down within the cement silo for cleaning; by setting a telescopic support mechanism, it can extend and retract according to the size of the cement silo, adjusting the position of the crushing mechanism for cleaning; by setting a crushing mechanism, it facilitates effective cleaning of the inner wall of the cement silo, thus enabling comprehensive cleaning of the cement silo and improving cleaning efficiency. Furthermore, it is easy to operate, stable and reliable, and can adapt to cleaning cement silos of different sizes.

[0005] However, the crushing mechanism in the application is a vibration-type cleaning structure, which causes significant damage to the silo structure.

[0006] For example, patent CN102344023A discloses a large cement silo balance-type silo cleaning machine; and patent CN211134876U discloses a device for cleaning the inner wall of a cement silo. Both applications employ a rotating crushing mechanism that can flexibly contact the silo wall following its changing curve, effectively reducing damage to the silo. However, these applications still have certain drawbacks. For instance, in patent CN102344023A, the cleaning mechanism is flexibly suspended by a steel wire rope. The reaction force generated by the impact disc when striking the hardened area causes violent shaking (pendulum effect), resulting in frequent shifts in the impact point and unstable impact force applied to the hardened area, significantly reducing cleaning efficiency. Furthermore, the back-and-forth shaking of the impact disc can easily cause excessive impact to the silo wall, damaging it. Summary of the Invention

[0007] The problem to be solved

[0008] In view of at least some of the problems existing in the prior art, the present invention provides a variable amplitude suspended cement silo cleaning machine and cleaning method. The purpose is to solve the problem that the existing cleaning machine's rotating working head generally adopts a purely flexible suspension, which is prone to violent shaking due to reaction force during operation, thereby affecting cleaning efficiency and damaging the silo wall.

[0009] Technical solution To solve the above problems, the technical solution adopted by the present invention is as follows: The present invention discloses a variable-amplitude suspended cement silo cleaning machine, comprising an installation mechanism, wherein a cleaning head is connected to the installation mechanism via a connecting mechanism, and a limiting mechanism is provided between the connecting mechanism and the cleaning head. The limiting mechanism includes an upper connecting plate, a lower connecting plate, and a vertical lifting assembly located between the upper and lower connecting plates; The vertical lifting assembly includes a multi-layered, sequentially hinged cross-link structure. The cross-link structure includes two sets of parallel-distributed link units. Each link unit includes a pair of links that are hinged in a cross manner, and the free ends of the links are connected by a connecting shaft. The upper connecting plate is provided with a pair of lugs, which are connected to the connecting mechanism via a central shaft; An adjusting nut, a friction plate, and an elastic element located between the two are fitted on the central shaft. The friction plate is always in close contact with the lug under the preload of the elastic element.

[0010] In some embodiments, the mounting mechanism includes a base frame and a planar bearing mounted on the base frame. A rotating frame is mounted on the planar bearing, and a connecting mechanism is mounted on the rotating frame and is driven by the rotating frame to rotate 360°.

[0011] In some embodiments, the connecting mechanism includes a winch mounted on a rotating frame and a first rod; wherein, The first rod is vertically arranged, with its lower end extending below the mounting mechanism and rotatably connected to the second rod. Both rods are equipped with pulleys. The winch is wound with a traction rope, the end of which passes through a pulley and is connected to the second rod.

[0012] In some embodiments, the end of the second rod is provided with a connecting block, and the connecting block has a U-shaped groove for the end of the first rod to be inserted into, so as to restrict the relative rotation between the two rods on the horizontal plane.

[0013] In some embodiments, the second rod is divided into several segments, and adjacent segments are connected by sleeves.

[0014] In some embodiments, the winch is provided with a handle for rotating the winch; the second rod is provided with a sling for connecting the traction rope.

[0015] In some embodiments, the cleaning head includes a mounting housing and a drive source disposed within the mounting housing; wherein, The output end of the drive source is connected to a rotating disk, and the rotating disk is provided with several chains around its circumference, with hammers connected to the ends of the chains.

[0016] In some embodiments, the drive source is a hydraulic motor, which is connected to an oil supply pipe via an oil pipe connector. The installation mechanism is equipped with an adjustment disc for extending and retracting the oil supply pipe.

[0017] In some embodiments, the second rod has an end pulley with limiting plates on both sides; The oil supply end of the oil supply pipe passes around the pulley, then sequentially through the upper connecting plate, the central channel of the vertical lifting assembly, and the lower connecting plate, and connects to the oil pipe joint.

[0018] The method for cleaning a cement silo using the aforementioned variable-amplitude suspended cement silo cleaning machine includes the following steps: S1. Installation and Positioning The cleaning machine is fixed to the opening of the cement silo to be cleaned via the base frame; at this time, the cleaning head is located inside the silo, and the working position of the cleaning head is adjusted by rotating the frame. S2, Amplitude Variable and Alignment Rotate the winch and adjust the elevation angle of the second rod by raising and lowering the traction rope to determine the radial position of the cleaning head; S3, Extension and Operation Release the oil supply pipe, and the cleaning head, under the action of gravity, will cause the vertical lifting component to extend longitudinally to the target height; start the drive source to drive the hammer to break the slab-like material. During the cleaning head operation, lateral swaying is restrained by the vertical lifting component, and forward and backward swaying is suppressed by the friction energy dissipation of the friction plate.

[0019] Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The variable amplitude suspended cement silo cleaning machine of the present invention adopts a cross-link structure for the vertical lifting component. While ensuring the lifting function, the geometric characteristics of the cross-link structure provide extremely strong lateral stiffness, which effectively limits the left and right deflection of the cleaning head. In addition, the friction resistance of the friction plate suppresses the back and forth swing of the cleaning head, thereby effectively solving a series of defects caused by the violent shaking of the cleaning head due to the reaction force.

[0020] (2) The variable amplitude suspended cement silo cleaning machine of the present invention can drive the cleaning head to rotate 360° by setting the plane bearing; the elevation angle of the second rod can be adjusted by the traction rope to determine the radial position of the cleaning head; in addition, the position of the cleaning head in the vertical direction can be adjusted by extending and retracting the oil supply pipe, thereby realizing the all-round and multi-angle operation coverage of the cleaning head, which can adapt to the cleaning needs of cement silos of different diameters and heights.

[0021] (3) In a variable amplitude suspended cement silo cleaning machine of the present invention, the first rod and the second rod are connected by a connecting block. The connecting block has a U-shaped groove for the end of the first rod to be inserted. The side walls on both sides of the connecting block can effectively limit the relative rotation between the rods on the horizontal plane, which helps to ensure the stability of the cleaning head during operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a variable-amplitude suspended cement silo cleaning machine according to the present invention; Figure 2 This is a front view of a variable-amplitude suspended cement silo cleaning machine according to the present invention; Figure 3 This is a schematic diagram of the installation mechanism in this invention; Figure 4 This is a schematic diagram of the structure of the limiting mechanism in this invention; Figure 5 This is a partial structural diagram of the friction plate in this invention; Figure 6 This is a schematic diagram of the cleaning head in this invention.

[0023] In the diagram: 100, installation mechanism; 110. Base frame; 120. Surface bearing; 130. Rotating frame; 200. Connecting mechanism; 210. Winch; 211. Handle; 220. First rod; 230. Second rod; 231. Sleeve; 240. Pulley; 250. Traction rope; 260. Connecting block; 270. Lifting ring; 280. Limiting plate; 300. Clean the head; 310. Mounting housing; 320. Drive source; 330. Rotary disc; 340. Chain; 350. Hammer; 360. Oil pipe connector; 370. Oil supply pipe; 380. Adjusting disc; 400. Limiting mechanism; 410. Upper connecting plate; 420. Lower connecting plate; 430. Vertical lifting assembly; 431. Linkage unit; 4311. Linkage rod; 4312. Connecting shaft; 440. Lug; 450. Central shaft; 460. Adjusting nut; 470. Friction plate; 480. Elastic element. Detailed Implementation

[0024] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] As mentioned in the background section, existing cleaning machines generally use a purely flexible suspension for their rotating working heads, which is prone to violent shaking due to reaction forces during operation, thus affecting cleaning efficiency and causing damage to the tank walls.

[0027] To address the aforementioned shortcomings, the most effective solution seems to be rigid connections. However, in practical use, it has been found that while rigid connections fundamentally eliminate the swaying problem, they directly transmit the enormous reaction force generated during the impact on the slabs to the main structure of the cleaning machine. Over time, the impact load can easily lead to fatigue damage of structural components, loosening and breakage of connecting bolts, and even cause overall stability issues with the equipment. Furthermore, rigid connections make adjusting the position of the working head extremely inconvenient, making it difficult to adapt to complex working conditions with different slab types and different slab locations, resulting in poor flexibility and adaptability.

[0028] Therefore, this invention aims to provide a cleaning machine structure that combines rigid constraint and flexible buffer characteristics. It can effectively suppress the shaking of the working head during operation, ensuring the stability of the striking accuracy and force; it can also significantly reduce the transmission of impact reaction force to the main structure, avoiding structural fatigue damage; and it can also realize convenient adjustment of the position of the working head to adapt to different cleaning conditions.

[0029] The present invention will be further described below with reference to specific embodiments.

[0030] like Figure 1 , Figure 2 As shown in the figure, the variable-amplitude suspended cement silo cleaning machine of this embodiment has the same basic structure as the prior art, including an installation mechanism 100, a connecting mechanism 200, and a cleaning head 300. The installation mechanism 100 serves as the mounting base for the entire cleaning machine and can be fixed to the silo opening by locking components; the cleaning head 300 is located inside the silo and is used to impact-clean the hardened material on the silo wall; the connecting mechanism 200 serves as an intermediate auxiliary mechanism to connect the installation mechanism 100 and the cleaning head 300.

[0031] Unlike existing technologies, in this embodiment, in order to prevent the cleaning head 300 from shaking violently due to reaction force during operation, a limiting mechanism 400 is added between the connecting mechanism 200 and the cleaning head 300 to limit the swing of the cleaning head 300 during operation.

[0032] Specifically, refer to Figure 4 As shown, the limiting mechanism 400 includes an upper connecting plate 410, a lower connecting plate 420, and a vertical lifting assembly 430 located between the upper and lower connecting plates. The vertical lifting assembly 430 includes a multi-layered, sequentially hinged cross-link structure, comprising two sets of parallel connecting rod units 431. Each connecting rod unit 431 includes a pair of cross-hinged connecting rods 4311, with the free ends of the connecting rods 4311 connected via a connecting shaft 4312.

[0033] In other words, in this embodiment, the various cross-link structures are rotatably connected by connecting shaft 4312. This structure ensures that the cleaning head 300 can be raised and lowered while also providing extremely strong lateral stiffness, effectively limiting the left and right deflection of the cleaning head 300.

[0034] Further, refer to Figure 5 As shown, in this embodiment, a pair of lugs 440 are also provided on the upper connecting plate 410. The end of the connecting mechanism 200 is inserted into the space between the two lugs 440 and then rotated and connected through the central shaft 450.

[0035] Meanwhile, an adjusting nut 460, an elastic element 480, and a friction plate 470 are sequentially fitted from the outside to the inside on the rod extending from the central shaft 450 to the outside of the lug 440. Among them, the friction plate 470 is always in close contact with the lug 440 under the preload of the elastic element 480, and the friction resistance cleaning head 300 swings back and forth in the direction of friction resistance.

[0036] Preferably, the elastic element 480 may be a spring.

[0037] In this embodiment, a variable-amplitude suspended cement silo cleaning machine employs a cross-link structure for its vertical lifting assembly 430. While ensuring the lifting function, its geometric characteristics provide extremely high lateral stiffness, effectively limiting the left-right deflection of the cleaning head 300. Furthermore, the frictional resistance of the friction plate 470 suppresses the forward-backward swaying of the cleaning head 300, thus forming a connection structure that combines rigid constraint with flexible buffering.

[0038] Specifically, when the cleaning head 300 is subjected to an impact reaction force, the cross-link structure resists the lateral force through its own geometric stability, preventing the cleaning head 300 from swaying left and right. At the same time, when the cleaning head 300 swings back and forth, frictional resistance is generated between the friction plate 470 and the lug 440, which can effectively dissipate the swing energy, quickly reduce the back and forth swing amplitude of the cleaning head 300, and allow the cleaning head 300 to return to a stable state in a short time.

[0039] This design in this embodiment overcomes the drawbacks of easy swaying in purely flexible connections and avoids the defects of rigid connections transmitting huge impact loads. While ensuring the stability of the cleaning head 300 position and the accuracy of the impact, it significantly reduces the impact damage to the main structure and improves the service life and adaptability of the equipment.

[0040] like Figure 3 As shown, in one specific embodiment of the installation mechanism 100, the installation mechanism 100 includes a base frame 110 and a flat bearing 120 mounted on the base frame 110. The base frame 110 fixes the entire mechanism at the warehouse opening. A rotating frame 130 is mounted on the flat bearing 120, and a connecting mechanism 200 is mounted on the rotating frame 130 and rotates 360°, thereby causing the limiting mechanism 400 at the end of the connecting mechanism 200 and the cleaning head 300 to rotate synchronously.

[0041] like Figure 2 , Figure 3As shown, in one specific embodiment of the connecting mechanism 200, the connecting mechanism 200 includes a winch 210 mounted on a rotating frame 130 and a first rod 220. The first rod 220 is vertically oriented, with one end mounted on the rotating frame 130 and the other end extending below the mounting mechanism 100, where it is rotatably connected to a second rod 230. A limiting mechanism 400 is located at the end of the second rod 230 away from the first rod 220; both the first rod 220 and the second rod 230 are equipped with pulleys 240.

[0042] A traction rope 250 is wound around the winch 210, and the end of the traction rope 250 passes through the corresponding pulley 240 and is connected to the second rod 230. The elevation angle of the second rod 230 can be adjusted by winding and unwinding the traction rope 250 to determine the radial position of the cleaning head 300.

[0043] Furthermore, the winch 210 is provided with a handle 211 for rotating the winch 210; at the same time, the second rod 230 is provided with a lifting ring 270 for connecting the traction rope 250. Preferably, the lifting ring 270 is located at the end of the second rod 230 closer to the heavy load, that is, at the end closer to the limiting mechanism 400 and the cleaning head 300.

[0044] In some alternative embodiments, the end of the second rod 230 is provided with a connecting block 260, which has a U-shaped groove for the end of the first rod 220 to be engaged. The side walls on both sides of the connecting block 260 can effectively limit the relative rotation between the rods on the horizontal plane, which helps to ensure the stability of the cleaning head 300 during operation.

[0045] Furthermore, the second rod 230 is divided into several segments, with adjacent segments connected by sleeves 231. This segmented design allows the length of the second rod 230 to be flexibly adjusted according to the actual dimensions of the cement silo; at the same time, it facilitates transportation and installation, reducing the requirements for working space.

[0046] Combination Figure 1 , Figure 2 as well as Figure 6 As shown, in one specific embodiment of the cleaning head 300, the cleaning head 300 includes a mounting housing 310 and a drive source 320 disposed within the mounting housing 310. The mounting housing 310 is mounted on a lower connecting plate 420. The output end of the drive source 320 is connected to a rotating disk 330, which has several chains 340 arranged circumferentially, and hammers 350 are connected to the ends of the chains 340.

[0047] The drive source 320 is preferably a hydraulic motor to provide strong and stable power output, adapting to the complex operating environment and hard, compacted materials inside the cement silo. The hydraulic motor is connected to an oil supply line 370 via an oil pipe connector 360.

[0048] Furthermore, the mounting mechanism 100 is equipped with an adjusting disc 380 for extending and retracting the oil supply pipe 370. Simultaneously, the end pulley 240 of the second rod 230 is also present. After the oil supply end of the oil supply pipe 370 passes around the pulley 240, it sequentially passes through the upper connecting plate 410, the central channel of the vertical lifting assembly 430, and the lower connecting plate 420, and connects to the oil pipe connector 360.

[0049] In some embodiments, limiting plates 280 are also provided on both sides of the pulley 240 of the second rod 230 to prevent the oil supply pipe 370 from falling off the pulley 240.

[0050] This embodiment of a variable-amplitude suspended cement silo cleaning machine, through the setting of the plane bearing 120, can drive the cleaning head 300 to rotate 360°; by adjusting the elevation angle of the second rod 230 through the traction rope 250, the radial position of the cleaning head 300 can be adjusted; in addition, by extending and retracting the oil supply pipe 370, the vertical position of the cleaning head 300 can be adjusted, thereby realizing the all-round and multi-angle operation coverage of the cleaning head, which can adapt to the cleaning needs of cement silos of different diameters and heights, and significantly improve the flexibility and comprehensiveness of the silo cleaning operation.

[0051] The method for cleaning a cement silo using the aforementioned variable-amplitude suspended cement silo cleaning machine includes the following steps: S1. Installation and Positioning The cleaning machine is fixed to the opening of the cement silo to be cleaned via the base frame 110; at this time, the cleaning head 300 is located inside the silo, and the working position of the cleaning head 300 is adjusted by the rotating frame 130. S2, Amplitude Variable and Alignment Rotate the winch 210 and adjust the elevation angle of the second rod 230 by raising and lowering the traction rope 250 to determine the radial position of the cleaning head 300; S3, Extension and Operation Release the oil supply pipe 370, and the cleaning head 300, under the action of gravity, drives the vertical lifting component 430 to extend longitudinally to the target height; start the drive source 320 to drive the hammer head 350 to break the slab; During the cleaning head 300 operation, lateral swaying is restrained by the vertical lifting component 430, and forward and backward swaying is suppressed by the friction energy dissipation of the friction plate 470.

[0052] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A variable-amplitude suspended cement silo cleaning machine, comprising an installation mechanism (100), wherein the installation mechanism (100) is connected to a cleaning head (300) via a connecting mechanism (200), characterized in that: A limiting mechanism (400) is provided between the connecting mechanism (200) and the cleaning head (300). The limiting mechanism (400) includes an upper connecting plate (410), a lower connecting plate (420), and a vertical lifting assembly (430) located between the upper and lower connecting plates. The vertical lifting assembly (430) includes a multi-layered, sequentially hinged cross-link structure. The cross-link structure includes two sets of parallel-distributed link units (431). Each link unit (431) includes a pair of cross-hinged links (4311), and the free ends of the links (4311) are connected by a connecting shaft (4312). The upper connecting plate (410) is provided with a pair of lugs (440), which are connected to the connecting mechanism (200) via a central shaft (450); An adjusting nut (460), a friction plate (470), and an elastic element (480) located between the two are fitted on the central shaft (450). The friction plate (470) is always in close contact with the lug (440) under the preload of the elastic element (480).

2. The variable-amplitude suspended cement silo cleaning machine according to claim 1, characterized in that: The mounting mechanism (100) includes a base frame (110) and a flat bearing (120) mounted on the base frame (110). A rotating frame (130) is mounted on the flat bearing (120), and a connecting mechanism (200) is mounted on the rotating frame (130) and is driven by the rotating frame (130) to rotate 360°.

3. The variable-amplitude suspended cement silo cleaning machine according to claim 2, characterized in that: The connecting mechanism (200) includes a winch (210) mounted on a rotating frame (130) and a first rod (220); wherein, The first rod (220) is vertically arranged, and its lower end extends to the bottom of the mounting mechanism (100) and is rotatably connected to the second rod (230), and both rods are provided with pulleys (240). The winch (210) is wound with a traction rope (250), the end of which passes through a pulley (240) and is connected to the second rod (230).

4. The variable-amplitude suspended cement silo cleaning machine according to claim 3, characterized in that: The end of the second rod (230) is provided with a connecting block (260), and the connecting block (260) is provided with a U-shaped groove for the end of the first rod (220) to be inserted into, so as to restrict the relative rotation between the two rods on the horizontal plane.

5. The variable-amplitude suspended cement silo cleaning machine according to claim 4, characterized in that: The second rod (230) is divided into several segments, and adjacent segments are connected by sleeves (231).

6. A variable-amplitude suspended cement silo cleaning machine according to any one of claims 3-5, characterized in that: The winch (210) is provided with a handle (211) for rotating the winch (210); the second rod (230) is provided with a sling (270) for connecting the traction rope (250).

7. The variable-amplitude suspended cement silo cleaning machine according to claim 3, characterized in that: The cleaning head (300) includes a mounting housing (310) and a drive source (320) disposed within the mounting housing (310); wherein, The output end of the drive source (320) is connected to a rotating disk (330), and the rotating disk (330) is provided with a plurality of chains (340) in the circumference, and the end of the chain (340) is connected to a hammer (350).

8. The variable-amplitude suspended cement silo cleaning machine according to claim 7, characterized in that: The drive source (320) is a hydraulic motor, which is connected to an oil supply pipe (370) via an oil pipe connector (360). The installation mechanism (100) is provided with an adjustment disc (380) for retracting and extending the oil supply pipe (370).

9. A variable-amplitude suspended cement silo cleaning machine according to claim 8, characterized in that: The second rod (230) has an end pulley (240), and limiting plates (280) are provided on both sides of the pulley (240). The oil supply end of the oil supply pipe (370) passes around the pulley (240), then passes through the upper connecting plate (410), the central channel of the vertical lifting assembly (430), and the lower connecting plate (420) in sequence, and is connected to the oil pipe joint (360).

10. A method for cleaning a cement silo using a variable-amplitude suspended cleaning machine as described in claim 7, characterized in that: Includes the following steps: S1. Installation and Positioning The cleaning machine is fixed to the opening of the cement silo to be cleaned by the base frame (110); at this time, the cleaning head (300) is located inside the silo, and the working position of the cleaning head (300) is adjusted by the rotating frame (130); S2, Amplitude Variable and Alignment Rotate the winch (210) and adjust the elevation angle of the second rod (230) by raising and lowering the traction rope (250) to determine the radial position of the cleaning head (300); S3, Extension and Operation Release the oil supply pipe (370), and the cleaning head (300) will extend the vertical lifting assembly (430) longitudinally to the target height under the action of gravity; start the drive source (320) to drive the hammer (350) to break the slab; During the cleaning head (300) operation, lateral swaying is restrained by the vertical lifting assembly (430), and the back-and-forth swaying is suppressed by the friction energy dissipation of the friction plate (470).

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