A discharge hopper cleaning device

By designing cleaning components, self-cleaning components, and motion components for the hopper cleaning device, the problem of material adhesion to the scraper was solved, achieving automatic scraper cleaning and efficient hopper cleaning.

CN117483361BActive Publication Date: 2026-07-07HUANENG YARLUNG TSANGPO RIVER HYDROPOWER DEV INVESTMENT CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUANENG YARLUNG TSANGPO RIVER HYDROPOWER DEV INVESTMENT CO LTD
Filing Date
2023-11-02
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

During the cleaning process of existing unloading hoppers, the scraper is prone to material adhesion, and the scraper cleaning device affects the use of the unloading hopper or reduces the cleaning efficiency.

Method used

Design a hopper cleaning device, including a cleaning component, a self-cleaning component, and a motion component. Through the cooperation of reciprocating scrapers, left scrapers, and right scrapers, and powered by vertical and horizontal lead screws, the automatic cleaning and position adjustment of the scrapers are achieved.

Benefits of technology

After cleaning the unloading hopper, the scraper can be effectively cleaned, preventing the scraper cleaning device from affecting the unloading hopper's usage range or efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a cleaning device for a discharge hopper, wherein the cleaning device comprises a cleaning assembly, a self-cleaning assembly and a movement assembly; the cleaning assembly comprises a reciprocating scraper; the self-cleaning assembly is arranged on the top of the cleaning assembly and comprises a left scraper and a right scraper; and the movement assembly is arranged on the side of the cleaning assembly and comprises a vertical screw rod and a horizontal screw rod. The cleaning device can clean the scraper of the self-cleaning assembly after cleaning the discharge hopper, and the parts of the scraper cannot affect the cleaning of the discharge hopper or reduce the use range of the cleaning of the discharge hopper.
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Description

Technical Field

[0001] This invention relates to the field of unloading hopper technology, and in particular to a cleaning device for unloading hoppers. Background Technology

[0002] A hopper is a device used for loading, handling, and unloading bulk materials, widely used in construction sites, mines, ports, storage facilities, agriculture, and other fields. The design and application of hoppers can vary depending on specific working requirements and material characteristics. During the use of some hoppers, the unloaded material often sticks to the hopper's inclined wall. Generally, scrapers are used to scrape off the sticky material, but material often remains on the scraper itself. Therefore, a cleaning device is needed that can clean the scraper itself after cleaning the hopper, while ensuring that the scraper's cleaning components do not impede the scraper's ability to clean the hopper or reduce its usability. Summary of the Invention

[0003] In view of the problems existing in the cleaning of the existing unloading hopper, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is how to clean the scraper itself after cleaning the unloading hopper, while the parts of the scraper do not affect the scraper's cleaning of the unloading hopper or reduce the scope of use of the unloading hopper.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hopper cleaning device, which includes a cleaning component, a self-cleaning component and a moving component.

[0006] As a preferred embodiment of the unloading hopper cleaning device of the present invention, the cleaning component includes a reciprocating scraper, which is in close contact with the inner wall of one side of the unloading hopper;

[0007] A self-cleaning component, disposed on top of the cleaning component, includes a left scraper and a right scraper, the left scraper being disposed on one side of the reciprocating scraper, and the right scraper being disposed on the other side of the reciprocating scraper; and...

[0008] A motion component, disposed on the side of the cleaning component, includes a vertical lead screw and a horizontal lead screw. The vertical lead screw is disposed on the top of the reciprocating scraper, and the horizontal lead screw is disposed at both ends of the reciprocating scraper.

[0009] As a preferred embodiment of the unloading hopper cleaning device of the present invention, the reciprocating scraper includes a bottom scraper, a side plate and scraper teeth. The bottom scraper is disposed at the bottom of the reciprocating scraper and is in contact with the inner wall of one side of the unloading hopper. The scraper teeth are disposed on the side of the bottom scraper and are in contact with the inner wall of one side of the unloading hopper. There are two side plates, which are respectively disposed on the top two sides of the reciprocating scraper.

[0010] In a preferred embodiment of the unloading hopper cleaning device of the present invention, the reciprocating scraper further includes a top scraper and a bottom plate, the top scraper being disposed at the top of the reciprocating scraper and the bottom plate being disposed at the bottom of the reciprocating scraper.

[0011] In a preferred embodiment of the unloading hopper cleaning device of the present invention, the left scraper and a side plate cooperate, the left scraper includes a bottom block, a middle block, a top block, a top plate and a top column; the middle block is disposed on the top of the bottom block, the top block is disposed on the top of the middle block, the top plate is disposed on the bottom side of the top block, and the top column is disposed on one end of the side of the top plate;

[0012] The top surface of the bottom block mates with the bottom of the side plate, the side surface of the middle block mates with the side surface of the side plate, and the bottom surface of the top block mates with the top of the side plate.

[0013] In a preferred embodiment of the unloading hopper cleaning device of the present invention, the right scraper cooperates with another side plate, and the right scraper includes a right bottom block, a right middle block, a right top block, a right top plate and a right top column; the right middle block is disposed on top of the right bottom block, the right top block is disposed on top of the right middle block, the right top plate is disposed on the top side of the right top block, and the right top column is disposed at one end of the side of the right top plate;

[0014] The top surface of the right bottom block mates with the bottom of the side plate, the side surface of the right middle block mates with the side surface of the side plate, and the bottom surface of the right top block mates with the top of the side plate.

[0015] In a preferred embodiment of the unloading hopper cleaning device of the present invention, the self-cleaning component further includes a translation block, which is disposed on the top of the reciprocating scraper. The translation block includes a tip, an inclined end, a flat end, a left plate, and a right plate. The tip is disposed on one side of the inclined end, the flat end is disposed on the other side of the inclined end, the left plate is disposed on the left side of the inclined end and the flat end, and the right plate is disposed on the right side of the inclined end and the flat end. The bottom of the tip, the inclined end, and the flat end cooperate with the top of the reciprocating scraper.

[0016] As a preferred embodiment of the unloading hopper cleaning device of the present invention, the left plate is provided with a first inclined groove, and the first inclined groove cooperates with the top column;

[0017] The right plate is provided with a second inclined groove, which cooperates with the right top column.

[0018] As a preferred embodiment of the unloading hopper cleaning device of the present invention, the self-cleaning component further includes a fixing lock, which is disposed on the top of the translation block, the right scraper and the left scraper;

[0019] The top of the left scraper is provided with a No. 1 lock hole, the top of the right scraper is provided with a No. 2 lock hole, the top of the tip is provided with a No. 3 lock hole, and the bottom of the fixed lock is provided with three lock pins, which respectively cooperate with the No. 1 lock hole, the No. 2 lock hole and the No. 3 lock hole;

[0020] The bottom of the translation block is provided with a screw hole No. 1, the axis of which is parallel to the axis of the reciprocating scraper, and the side of the flat end is provided with a locking groove.

[0021] As a preferred embodiment of the unloading hopper cleaning device of the present invention, the self-cleaning component further includes a telescopic lock, which is disposed on one side of the flat end. The telescopic lock includes a lock plate, a lock post, and a lock spring. One end of the lock spring is connected to the bottom of the lock groove of the flat end, and the other end is connected to one end of the lock post. The lock plate is fixed to the other end of the lock post, and the lock post is disposed inside the lock groove.

[0022] As a preferred embodiment of the unloading hopper cleaning device of the present invention, wherein: the vertical screw rod and the first screw hole of the translation block are engaged, and the two ends of the vertical screw rod are rotatably engaged with the top scraper and the bottom plate;

[0023] There are two horizontal lead screws: one passes through the top scraper and is rotatably engaged, and the other passes through the bottom plate and is rotatably engaged.

[0024] The beneficial effects of this invention are as follows: With the cooperation of the cleaning component, the self-cleaning component and the moving component, our invention has a cleaning device that can clean its own scraper after cleaning the unloading hopper. At the same time, the parts of the scraper do not affect the scraper's cleaning of the unloading hopper or reduce the scope of use of the cleaning unloading hopper under normal circumstances. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0026] Figure 1 This is a structural diagram of the unloading hopper cleaning device.

[0027] Figure 2 This is a structural diagram of the reciprocating scraper of the unloading hopper cleaning device.

[0028] Figure 3 Another structural view of the reciprocating scraper of the unloading hopper cleaning device.

[0029] Figure 4 This is a top structural diagram of the unloading hopper cleaning device.

[0030] Figure 5 This is a structural diagram of the self-cleaning component of the unloading hopper cleaning device.

[0031] Figure 6 This is a structural diagram of the self-cleaning component of the unloading hopper cleaning device.

[0032] Figure 7 This is a structural diagram of the cleaning mode of the unloading hopper cleaning device. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0036] Example 1

[0037] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a hopper cleaning device, which includes a cleaning component 100, a self-cleaning component 200, and a motion component 300.

[0038] Specifically, the cleaning component 100 includes a reciprocating scraper 101, which is in close contact with the inner wall of one side of the discharge hopper.

[0039] The cleaning component 100 is used to clean the material adhering to the unloading hopper and at the same time provides an attachment point for the self-cleaning component 200.

[0040] The self-cleaning component 200 is disposed on the top of the cleaning component 100 and includes a left scraper 201 and a right scraper 202. The left scraper 201 is disposed on one side of the reciprocating scraper 101 and the right scraper 202 is disposed on the other side of the reciprocating scraper 101.

[0041] The self-cleaning component 200 is used to push off the material stuck to the reciprocating scraper 101 after cleaning the unloading hopper. At the same time, when cleaning the unloading hopper, it moves itself to the top of the reciprocating scraper 101 without reducing the cleaning range of the reciprocating scraper 101.

[0042] The motion component 300 is disposed on the side of the cleaning component 100 and includes a vertical lead screw 301 and a horizontal lead screw 302. The vertical lead screw 301 is disposed on the top of the reciprocating scraper 101 and the horizontal lead screw 302 is disposed at both ends of the reciprocating scraper 101.

[0043] The motion component 300 indirectly provides power to the reciprocating scraper 101, the left scraper 201, and the right scraper 202 via a lead screw.

[0044] The hopper cleaning device also includes a motor that powers the vertical lead screw 301 and the horizontal lead screw 302 of the motion component 300, and a protective housing that surrounds the entire cleaning component 100 and self-cleaning component 200.

[0045] Specifically, the reciprocating scraper 101 includes a bottom scraper 101a, a side plate 101b, and scraper teeth 101c. The bottom scraper 101a is located at the bottom of the reciprocating scraper 101 and is attached to the inner wall of one side of the discharge hopper. The scraper teeth 101c are located on the side of the bottom scraper 101a and are attached to the inner wall of one side of the discharge hopper. There are two side plates 101b, which are respectively located on the top two sides of the reciprocating scraper 101.

[0046] The scraper teeth 101c are close to the discharge hopper and are used to scoop up the material that sticks to it. The side plate 101b provides an attachment point for the left scraper 201 and the right scraper 202.

[0047] Specifically, the reciprocating scraper 101 also includes a top scraper 101d and a bottom plate 101e. The top scraper 101d is disposed at the top of the reciprocating scraper 101, and the bottom plate 101e is disposed at the bottom of the reciprocating scraper 101.

[0048] The bottom of the top scraper 101d and the bottom plate 101e provide attachment points for the horizontal lead screw 302, while the top of the top scraper 101d and the bottom plate 101e provide attachment points for the vertical lead screw 301.

[0049] Specifically, the left scraper 201 cooperates with a side plate 101b. The left scraper 201 includes a bottom block 201a, a middle block 201b, a top block 201c, a top plate 201d, and a top post 201e. The middle block 201b is located on top of the bottom block 201a, the top block 201c is located on top of the middle block 201b, the top plate 201d is located at the bottom side of the top block 201c, and the top post 201e is located at one end of the side of the top plate 201d.

[0050] The top surface of the bottom block 201a mates with the bottom of the side plate 101b, the side surface of the middle block 201b mates with the side surface of the side plate 101b, and the bottom surface of the top block 201c mates with the top of the side plate 101b.

[0051] The left scraper 201 is engaged on the left side plate 101b. When it moves along the axial direction of the reciprocating scraper 101, it cleans up the material stuck to the left side of the reciprocating scraper 101.

[0052] Specifically, the right scraper 202 cooperates with another side plate 101b. The right scraper 202 includes a right bottom block 202a, a right middle block 202b, a right top block 202c, a right top plate 202d, and a right top column 202e. The right middle block 202b is located on top of the right bottom block 202a, the right top block 202c is located on top of the right middle block 202b, the right top plate 202d is located on the top side of the right top block 202c, and the right top column 202e is located at one end of the side of the right top plate 202d.

[0053] The top surface of the right bottom block 202a mates with the bottom of the side plate 101b, the side surface of the right middle block 202b mates with the side surface of the side plate 101b, and the bottom surface of the right top block 202c mates with the top of the side plate 101b.

[0054] The right scraper 202 is engaged on the right side plate 101b. When it moves along the axial direction of the reciprocating scraper 101, it cleans up the material stuck to the right side of the reciprocating scraper 101.

[0055] Both the bottom block 201a and the right bottom block 202a have magnets on their adjacent surfaces, which are used to automatically bring the right scraper 202 and the left scraper 201 closer together when adjusting their positions.

[0056] Specifically, the self-cleaning component 200 also includes a translation block 203, which is disposed on the top of the reciprocating scraper 101. The translation block 203 includes a tip 203a, an inclined end 203b, a flat end 203c, a left plate 203d, and a right plate 203e. The tip 203a is disposed on one side of the inclined end 203b, the flat end 203c is disposed on the other side of the inclined end 203b, the left plate 203d is disposed to the left of the inclined end 203b and the flat end 203c, and the right plate 203e is disposed to the right of the inclined end 203b and the flat end 203c. The bottom of the tip 203a, the inclined end 203b, and the flat end 203c cooperate with the top of the reciprocating scraper 101.

[0057] The translation block 203 is used to push the left scraper 201 and the right scraper 202 to clean the reciprocating scraper 101, and also to adjust the position of the left scraper 201 and the right scraper 202 on the reciprocating scraper 101.

[0058] After the reciprocating scraper 101 cleans the unloading hopper, the left scraper 201 and the right scraper 202 clean the reciprocating scraper 101 on both sides, and the translation block 203 directly pushes the left scraper 201 and the right scraper 202.

[0059] When the reciprocating scraper 101 cleans the unloading hopper, the translation block 203 pushes the left scraper 201 and the right scraper 202 to the top of the reciprocating scraper 101, without occupying the space on both sides of the reciprocating scraper 101, and thus does not reduce the cleaning range of the reciprocating scraper 101.

[0060] The top plate 201d and top column 201e, the right top plate 202d and right top column 202e are all provided with inclined surfaces, which cooperate with the inclined surface of the inclined end 203b.

[0061] Specifically, the left plate 203d is provided with a first inclined groove K1, which cooperates with the top column 201e;

[0062] The right plate 203e is equipped with a second inclined groove K2, which cooperates with the right top column 202e.

[0063] The two inclined troughs are at different heights, but both match the height of the top column on that side.

[0064] When in use, after the reciprocating scraper 101 cleans the unloading hopper, there is material stuck on the reciprocating scraper 101. At this time, the left scraper 201 and the right scraper 202 are manually placed on both sides of the reciprocating scraper 101, and the motor is started to indirectly drive the translation block 203 to directly clean the reciprocating scraper 101.

[0065] Example 2

[0066] Reference Figures 1-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0067] Specifically, the self-cleaning component 200 also includes a fixing lock 204, which is located on the top of the translation block 203, the right scraper 202 and the left scraper 201;

[0068] The top of the left scraper 201 is provided with a first lock hole H1, the top of the right scraper 202 is provided with a second lock hole H2, the top of the tip 203a is provided with a third lock hole H3, and the bottom of the fixed lock 204 is provided with three lock pins 204a, which respectively cooperate with the first lock hole H1, the second lock hole H2 and the third lock hole H3.

[0069] The bottom of the translation block 203 is provided with a screw hole H2, the axis of which is parallel to the axis of the reciprocating scraper 101, and the side of the flat end 203c is provided with a locking groove K3.

[0070] The fixed lock 204 has two locking modes. When the right scraper 202 and the left scraper 201 are on both sides of the reciprocating scraper 101, the three locking pins 204a are aligned with the three locking holes. At this time, the movement of the translation block 203 will directly drive the right scraper 202 and the left scraper 201 to move. This mode is used to clean the reciprocating scraper 101.

[0071] When the right scraper 202 and the left scraper 201 are at the top of the reciprocating scraper 101, two of the three locking devices 204a are respectively engaged with the first locking hole H1 and the second locking hole H2. This mode is used to fix the right scraper 202 and the left scraper 201 at the top of the reciprocating scraper 101 when the reciprocating scraper 101 is cleaning the discharge hopper, so as not to reduce the working range of the reciprocating scraper 101.

[0072] Specifically, the self-cleaning component 200 also includes a telescopic lock 205, which is located on one side of the flat end 203c. The telescopic lock 205 includes a lock plate 205a, a lock pin 205b, and a lock spring 205c. One end of the lock spring 205c is connected to the bottom of the lock groove K3 of the flat end 203c, and the other end is connected to one end of the lock pin 205b. The lock plate 205a is fixed to the other end of the lock pin 205b, and the lock pin 205b is located inside the lock groove K3.

[0073] When the right scraper 202 and the left scraper 201 are adjusted to the top of the reciprocating scraper 101, the locking plate 205a of the telescopic lock 205 will be pushed open by the right scraper 202 and the left scraper 201, and finally pulled back by the magnet. The right scraper 202 and the left scraper 201 clamp the locking pin 205b. At this time, the locking spring 205c retracts, and the locking plate 205a and the flat end 203c clamp the right scraper 202 and the left scraper 201, which is a safety measure to fix the position of the right scraper 202 and the left scraper 201.

[0074] Specifically, the vertical lead screw 301 is engaged with the first screw hole H2 of the translation block 203, and the two ends of the vertical lead screw 301 are engaged with the top scraper 101d and the bottom plate 101e.

[0075] There are two horizontal lead screws 302, one of which passes through the top scraper 101d and is rotatably engaged, and the other passes through the bottom plate 101e and is rotatably engaged.

[0076] When the horizontal lead screw 302 is driven, the reciprocating scraper 101 cleans the discharge hopper. When the vertical lead screw 301 is driven, it pushes the translation block 203 to clean the reciprocating scraper 101 or change the position of the right scraper 202 and the left scraper 201.

[0077] When in use, there are two modes: cleaning mode and self-cleaning mode. In cleaning mode, the reciprocating scraper 101 moves back and forth to scrape off the material stuck to the unloading hopper. In self-cleaning mode, when the right scraper 202 and the left scraper 201 are at both ends of the reciprocating scraper 101, the motor drives the vertical screw 301 to rotate. The vertical screw 301 drives the translation block 203 to move, pushing the right scraper 202 and the left scraper 201 to clean both sides of the reciprocating scraper 101.

[0078] Switching the device from self-cleaning mode back to cleaning mode requires moving the right scraper 202 and left scraper 201 from clamping the side plate 101b to fixing them to the top of the reciprocating scraper 101, which involves five steps: unlocking, separating, raising, merging, and locking.

[0079] Unlock: After cleaning, retract the right scraper 202 and the left scraper 201 to a higher position and remove the locking lock 204;

[0080] Separation: Now, move the translation block 203 down again. Next, the inclined surfaces on both sides of the tip 203a will engage with the inclined surfaces of the top plate 201d and the top column 201e, and the inclined surfaces of the right top plate 202d and the right top column 202e. Move the magnet away from the reciprocating scraper 101, and at the same time separate the right scraper 202 and the left scraper 201 by a certain distance.

[0081] Lifting: At this point, the translation block 203 is moved down, the tip 203a and the two scrapers are separated, and the distance between the two scrapers can be separated from the reciprocating scraper 101. Then, the first inclined groove K1 is matched with the top column 201e, and the second inclined groove K2 is matched with the right top column 202e, raising the two scrapers.

[0082] Merging: After the two scrapers pass over the translation block 203, the translation block 203 continues to move down until it is offset from the two scrapers. During this period, the two scrapers push the locking plate 205a and stretch the locking spring 205c. Then, the two scrapers will move closer to each other under the action of the magnet and be clamped by the locking plate 205a and the flat end 203c.

[0083] Locking: Use the two locking pins 204a of the fixed lock 204 to fix the position of the two scrapers.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hopper cleaning device, characterized in that: include, The cleaning assembly (100) includes a reciprocating scraper (101) which is in close contact with the inner wall of one side of the discharge hopper; side plates (101b) are respectively provided on the top two sides of the reciprocating scraper (101). A self-cleaning component (200) is disposed on top of the cleaning component (100) and includes a left scraper (201), a right scraper (202), and a translation block (203); the left scraper (201) is disposed on one side of the reciprocating scraper (101) and cooperates with a side plate (101b); the right scraper (202) is disposed on the other side of the reciprocating scraper (101) and cooperates with another side plate (101b); the translation block (203) is disposed on top of the reciprocating scraper (101); A motion component (300) is disposed on the side of the cleaning component (100) and includes a vertical lead screw (301) and a horizontal lead screw (302); the vertical lead screw (301) is disposed on the top of the reciprocating scraper (101), and the vertical lead screw (301) cooperates with the translation block (203) to drive its translation; the horizontal lead screw (302) is disposed at both ends of the reciprocating scraper (101); The left scraper (201) includes a top plate (201d) and a top column (201e); the right scraper (202) includes a right top plate (202d) and a right top column (202e); the top plate (201d), the top column (201e), the right top plate (202d), and the right top column (202e) are all provided with inclined surfaces; The translation block (203) includes a tip (203a), a left plate (203d), and a right plate (203e); the tip (203a) has inclined surfaces on both sides; the left plate (203d) has a first inclined groove (K1), which engages with the top column (201e); the right plate (203e) has a second inclined groove (K2), which engages with the right top column (202e); when the translation block (203) moves downward, the inclined surfaces on both sides of the tip (203a) respectively engage with... The inclined surfaces of the top plate (201d) and the top column (201e), and the inclined surfaces of the right top plate (202d) and the right top column (202e) cooperate to separate the left scraper (201) and the right scraper (202) from the side plate (101b); subsequently, the first inclined groove (K1) cooperates with the top column (201e), and the second inclined groove (K2) cooperates with the right top column (202e) to raise the separated left scraper (201) and the right scraper (202) to the top of the reciprocating scraper (101).

2. The unloading hopper cleaning device as described in claim 1, characterized in that: The reciprocating scraper (101) further includes a bottom scraper (101a) and scraper teeth (101c). The bottom scraper (101a) is disposed at the bottom of the reciprocating scraper (101) and is in contact with the inner wall of one side of the discharge hopper. The scraper teeth (101c) are disposed on the side of the bottom scraper (101a) and are in contact with the inner wall of one side of the discharge hopper.

3. The unloading hopper cleaning device as described in claim 2, characterized in that: The reciprocating scraper (101) further includes a top scraper (101d) and a bottom plate (101e), the top scraper (101d) being disposed at the top of the reciprocating scraper (101) and the bottom plate (101e) being disposed at the bottom of the reciprocating scraper (101).

4. The unloading hopper cleaning device as described in claim 3, characterized in that: The left scraper (201) cooperates with a side plate (101b). The left scraper (201) also includes a bottom block (201a), a middle block (201b), and a top block (201c). The middle block (201b) is disposed on top of the bottom block (201a), the top block (201c) is disposed on top of the middle block (201b), the top plate (201d) is disposed at the bottom of the side of the top block (201c), and the top post (201e) is disposed at one end of the side of the top plate (201d). The top surface of the bottom block (201a) mates with the bottom of the side plate (101b), the side surface of the middle block (201b) mates with the side surface of the side plate (101b), and the bottom surface of the top block (201c) mates with the top of the side plate (101b).

5. A hopper cleaning device as described in claim 3 or 4, characterized in that: The right scraper (202) cooperates with another side plate (101b). The right scraper (202) also includes a right bottom block (202a), a right middle block (202b), and a right top block (202c). The right middle block (202b) is disposed on top of the right bottom block (202a), the right top block (202c) is disposed on top of the right middle block (202b), the right top plate (202d) is disposed on the top side of the right top block (202c), and the right top column (202e) is disposed at one end of the side of the right top plate (202d). The top surface of the right bottom block (202a) mates with the bottom of the side plate (101b), the side surface of the right middle block (202b) mates with the side surface of the side plate (101b), and the bottom surface of the right top block (202c) mates with the top of the side plate (101b).

6. The unloading hopper cleaning device as described in claim 5, characterized in that: The self-cleaning component (200) also includes a fixing lock (204), which is disposed on the top of the translation block (203), the right scraper (202) and the left scraper (201); The left scraper (201) has a first lock hole (H1) at its top, the right scraper (202) has a second lock hole (H2) at its top, the tip (203a) has a third lock hole (H3) at its top, and the fixed lock (204) has three lock pins (204a) at its bottom. The three lock pins (204a) respectively cooperate with the first lock hole (H1), the second lock hole (H2) and the third lock hole (H3). The translation block (203) also includes a flat end (203c). The bottom of the translation block (203) is provided with a screw hole (H2). The axis of the screw hole (H2) is parallel to the axis of the reciprocating scraper (101). The side of the flat end (203c) is provided with a locking groove (K3).

7. A hopper cleaning device as described in claim 6, characterized in that: The self-cleaning component (200) also includes a telescopic lock (205), which is disposed on one side of the flat end (203c). The telescopic lock (205) includes a lock plate (205a), a lock pin (205b), and a lock spring (205c). One end of the lock spring (205c) is connected to the bottom of the lock groove (K3) of the flat end (203c), and the other end is connected to one end of the lock pin (205b). The lock plate (205a) is fixed to the other end of the lock pin (205b), and the lock pin (205b) is disposed inside the lock groove (K3).

8. A hopper cleaning device as described in claim 6 or 7, characterized in that: The vertical lead screw (301) and the first screw hole (H2) of the translation block (203) are engaged, and the two ends of the vertical lead screw (301) are rotatably engaged with the top scraper (101d) and the bottom plate (101e); There are two horizontal lead screws (302), one of which passes through the top scraper (101d) and is rotatably engaged, and the other passes through the bottom plate (101e) and is rotatably engaged.