Simple replacement and removal structure of a flotation machine scraper

Abstract

The application relates to a simple replacement and removal structure of a scraper of a flotation machine, which comprises a flotation machine body and a scraper; a working groove is formed in the flotation machine body, bearings are arranged on the inner walls of the two sides of the working groove, and the structure further comprises a first main shaft and a second main shaft, one-side grooves are formed in the opposite sides of the first main shaft and the second main shaft, a scraper mounting shaft is provided with protrusions at both ends, the scraper is arranged on the scraper mounting shaft, a main shaft quick-release mechanism and a first motor are arranged on one side of the flotation machine body, the first main shaft and the second main shaft are connected to the inner walls of the two sides of the working groove through the bearings, one of the main shafts is connected with the output shaft of the first motor, the protrusions are embedded in the one-side grooves and locked through the main shaft quick-release mechanism, and the device can be quickly disassembled when the device groove is cleaned.

Description

Technical Field

[0001] This application relates to the field of flotation machine technology, and in particular to a simple replacement and removal structure for a flotation machine scraper. Background Technology

[0002] Flotation machines are key pieces of equipment used in mineral processing for mineral flotation, and their development and application are closely linked to the historical process of global mining and resource utilization. The working principle of a flotation machine is that the rotation of the impeller thoroughly mixes the slurry and reagents, while simultaneously drawing in sufficient air to form bubbles. These bubbles contact and adhere to the valuable mineral particles in the slurry, forming mineralized bubbles. These bubbles rise to the surface of the slurry and are eventually scraped off by a scraper to form a frothy product.

[0003] Traditional flotation machine scrapers are fixed to the rotating shaft with screws and other fasteners. When the scraper is removed, the fixing sleeve will also loosen, which will cause the fixing sleeve to fall into the equipment. In addition, the rotating shaft is fixed to the motor. When maintenance or cleaning of the equipment tank is required, disassembling the rotating shaft is cumbersome, time-consuming and inconvenient. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a simple replacement and removal structure for flotation machine scrapers, which can facilitate quick disassembly when cleaning the inside of the equipment tank.

[0005] This application discloses a simple replacement and removal structure for a flotation machine scraper, including a flotation machine body and a scraper; the flotation machine body has a working groove inside, and bearings are installed on the inner walls of both sides of the working groove, and also includes: The first and second main spindles each have a slot on one side of their respective sides; and The scraper mounting shaft has protrusions at both ends, and the scraper is mounted on the scraper mounting shaft; and Spindle quick-release mechanism and first motor; Among them, on one side of the flotation machine body, the first motor, the first main shaft and the second main shaft are connected to the inner walls of the working tank on both sides through bearings. One of the main shafts is connected to the output shaft of the first motor, and the protrusion is embedded in the slot and locked by the main shaft quick release mechanism.

[0006] Optionally, a limiting hole may be constructed at the center of the bump along the axial direction.

[0007] Optionally, the spindle quick-release mechanism includes a limiting post, a lever, and a U-shaped stop; the first and second spindles have movable grooves, and the limiting post is slidably installed in the movable grooves. The limiting post passes through a slot and is inserted into a limiting hole; the lever is connected to the limiting post, and the limiting post is embedded in the U-shaped stop, which is slidably connected to the first and second spindles.

[0008] Optionally, the top two sides of the movable groove are provided with spring grooves, and the U-shaped blocks are symmetrically arranged in two pieces, one of the plates of each U-shaped block is slidably connected in the spring groove, and the joint of the two U-shaped blocks is provided with a hole for the lever to pass through.

[0009] Optionally, a first spring and a second spring are respectively provided in the two spring slots, and the force direction of the first spring and the second spring is the axial direction of the scraper mounting shaft.

[0010] Optionally, the first spring is located on the side closer to the main shaft and has a greater elastic force than the second spring.

[0011] Optionally, the U-shaped stop is located on a baffle in the spring groove that is shorter than the baffle on the other side.

[0012] Optionally, a scraper quick-release device is also included, through which the scraper is mounted on the scraper mounting shaft.

[0013] Optionally, the scraper quick-release device includes two symmetrically arranged fixing sleeves, which are fastened to the scraper mounting shaft by a first threaded fastener; fixing clips are constructed on both sides of the fixing sleeves, and fixing grooves are constructed inside the fixing clips; a fixing plate is provided on one side of the scraper, and the fixing plate is inserted into the fixing groove and fastened by a second threaded fastener.

[0014] Optionally, at least two sets of the scraper quick-release device are provided on the scraper mounting shaft.

[0015] The technical solution provided in this application may include the following beneficial effects: (1) The scraper mounting shaft of this device is engaged in the slots on the first and second main shafts by the protrusions at both ends. After being inserted, the first spring pushes the lever through the U-shaped stop to push the limiting post into the limiting hole. The limiting post limits the scraper mounting shaft to prevent it from disengaging during operation. When the scraper mounting shaft needs to be disassembled, simply move the levers on both sides. The levers will drive the limiting post out of the limiting hole. At this time, the scraper mounting shaft can be removed from the first and second main shafts. Disassembly is convenient and quick. The U-shaped stops on both sides of the lever can block the slots on both sides of the lever to prevent impurities from entering the movable slot and causing blockage.

[0016] (2) The device uses the first threaded fastener to symmetrically fix the two fixing sleeves on the scraper mounting shaft, the second threaded fastener to fix the fixing plate and the fixing clamp, and finally the scraper is fixed on the fixing plate by the third threaded fastener. If only the scraper and the fixing plate need to be replaced, the second threaded fastener and the third threaded fastener need to be removed, the new scraper and the fixing plate need to be replaced, and the second threaded fastener and the third threaded fastener need to be reinstalled. The fixing sleeve is always fixed on the scraper mounting shaft and will not loosen and fall into the equipment due to the removal of the scraper. The device is convenient and quick to replace the scraper and can ensure stability.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0019] Figure 1 This is a schematic diagram of the structure shown in the embodiments of this application; Figure 2 This is a cross-sectional view of the main body of the flotation machine shown in an embodiment of this application; Figure 3 This is a cross-sectional view shown in the embodiment of this application. Figure 4 This is a partially enlarged schematic diagram of point A in an embodiment of this application; Figure 5 This is a schematic diagram of the connection structure between the scraper and the fixing plate shown in an embodiment of this application.

[0020] Figure 6 This is a partially enlarged schematic diagram of point B in the embodiment of this application; Figure label: 1. Flotation machine body; 2. First motor; 3. Main shaft quick-release mechanism; 4. Scraper quick-release device; 5. Bearing; 6. First main shaft; 7. Slot; 8. Second main shaft; 9. Scraper; 10. Scraper mounting shaft; 11. Protrusion; 12. Working groove; 30. Limiting hole; 31. Limiting post; 32. Lever; 33. Movable groove; 34. U-shaped stop; 35. First spring; 36. Second spring; 37. Spring groove; 40. Fixing sleeve; 41. First threaded fastener; 42. Fixing clamp; 43. Fixing groove; 44. Fixing plate; 45. Second threaded fastener; 46. Third threaded fastener. Detailed Implementation

[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] To address the aforementioned problems, this application provides a simplified replacement and removal structure for flotation machine scrapers. The technical solution of this application embodiment is described in detail below with reference to the accompanying drawings.

[0026] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a simple replacement and removal structure for a flotation machine scraper, comprising a flotation machine body 1 and a scraper 9. The flotation machine body 1 has an inner working groove 12, and bearings 5 ​​are installed on the inner walls of both sides of the working groove 12. This structure also includes: The first spindle 6 and the second spindle 8, each having a slot 7 on one side of its opposite side; and A scraper mounting shaft 10 has protrusions 11 at both ends, and a scraper 9 is mounted on the scraper mounting shaft 10; and The spindle quick-release mechanism 3 and the first motor 2; Among them, on one side of the flotation machine body 1, the first motor 2, the first main shaft 6 and the second main shaft 8 are connected to the inner walls of both sides of the working tank 12 through the bearing 5. One of the main shafts is connected to the output shaft of the first motor 2, and the protrusion 11 is embedded in the slot 7 and locked by the main shaft quick release mechanism 3.

[0027] In this application, to design a structure that allows for quick and convenient disassembly and replacement of the flotation machine scraper, a first motor 2 is provided on one side of the flotation machine body 1 as a power unit. A working groove 12 is formed inside the flotation machine body 1, and bearings 5 ​​are installed on the inner walls of both sides of the working groove 12. A first main shaft 6 and a second main shaft 8 are rotatably mounted within the bearings 5. Both the first main shaft 6 and the second main shaft 8 are equipped with a quick-release mechanism 3 to enable rapid disassembly and assembly of the scraper mounting shaft 10. Specifically, the scraper mounting shaft 10 is installed between the first main shaft 6 and the second main shaft 8. The first main shaft 6 is fixedly connected to the output shaft of the first motor 2. The first motor 2 serves as the power source, and the quick-release mechanism 3 enables rapid installation and disassembly of the scraper mounting shaft 10 from the first main shaft 6 and the second main shaft 8.

[0028] To enable quick disassembly of the scraper mounting shaft 10, protrusions 11 are fixed on both sides of the scraper mounting shaft 10, and a limiting hole 30 is formed in the center of the protrusion 11 along the axial direction. A slot 7 is opened on the opposite side of the first spindle 6 and the second spindle 8. The scraper mounting shaft 10 is engaged in the slot 7 by the protrusions 11, and then locked and quickly disassembled by the spindle quick-release mechanism 3. Specifically, the spindle quick-release mechanism 3 includes a limiting post 31, a lever 32, and a U-shaped stop 34; the first spindle 6 and the second spindle 8 are constructed with a movable groove 33, and the limiting post 31 is slidably arranged in the movable groove 33. The limiting post 31 passes through the slot 7 and is inserted into the limiting hole 30; the lever 32 is connected to the limiting post 31, and the limiting post 31 is embedded in the U-shaped stop 34. The U-shaped stop 34 is slidably connected to the first spindle 6 and the second spindle 8. When the protrusion 11 is inserted into the slot 7, the lever 32 is moved so that the limiting post 31 is inserted into the limiting hole 30 to lock the scraper mounting shaft 10 and prevent it from slipping out of the slot 7. When disassembling, it is only necessary to move the lever 32 to make the limiting post 31 fall out of the limiting hole 30 to achieve separation.

[0029] To facilitate the movement of the lever 32, spring grooves 37 are constructed on both sides of the top of the movable groove 33. Two U-shaped blocks 34 are symmetrically arranged, with one plate of each U-shaped block 34 slidingly connected in the spring groove 37. A hole for the lever 32 to pass through is provided at the joint of the two U-shaped blocks 34. At the same time, to facilitate the return of the lever 32 to the locked position of the scraper mounting shaft 10 during use, a first spring 35 and a second spring 36 are respectively provided in the two spring grooves 37. The force direction of the first spring 35 and the second spring 36 is axial with the scraper mounting shaft 10, and the first spring 35 is located closer to the main shaft and has a greater elastic force than the second spring 36.

[0030] To facilitate the sliding installation of the U-shaped stop 34, the baffle of the U-shaped stop 34 located in the spring groove 37 is shorter than the baffle on the other side.

[0031] In this application, the first motor 2 drives the first main shaft 6 to rotate. During use, in the stopped state, the scraper mounting shaft 10 is engaged into the slots 7 on the first and second main shafts 6 and 8 by the protrusions 11 on both sides. During installation, the lever 32 is moved or the limiting post 31 is pressed to return the limiting post 31 to the movable slot 33. After installation, the limiting post 31, pushed by the first spring 35, enters the scraper mounting shaft 10 to limit the protrusions 11. At this time, the scraper mounting shaft 10 is fixed between the first and second main shafts 6 and 8. When the first main shaft 6 rotates, the scraper mounting shaft 10 also rotates, driving the scraper 9 to rotate. When it is necessary to disassemble the scraper mounting shaft 10... Keep the levers 32 on both sides moving. The movement of the levers 32 will cause the limiting post 31 to move. The levers 32 will disengage the limiting post 31 from the limiting hole 30. At this time, the scraper mounting shaft 10 can be removed. When the levers 32 are moved towards the side of the first spring 35, the second spring 36 will release pressure and push the U-shaped stop 34 on that side to press against the levers 32. When the levers 32 are released, since the elastic force of the first spring 35 is greater than that of the second spring 36, the first spring 35 will push the levers 32 towards the side of the second spring 36 under the elastic action. This ensures that no matter how the levers 32 are moved, the U-shaped stops 34 on both sides can block the movable groove 33, preventing debris in the working groove 12 from entering the movable groove 33 and causing blockage.

[0032] The scraper mounting shaft of this application is engaged with slots on the first and second main shafts by protrusions at both ends. After being engaged, the first spring pushes the lever through the U-shaped stop to push the limiting post into the limiting hole. The limiting post limits the scraper mounting shaft and prevents it from disengaging during operation. When the scraper mounting shaft needs to be disassembled, simply move the levers on both sides. The levers will cause the limiting post to disengage from the limiting hole, and the scraper mounting shaft can then be removed from the first and second main shafts. Disassembly is convenient and quick. The U-shaped stops on both sides of the levers can block the slots on both sides of the levers, preventing impurities from entering the movable slot and causing blockage.

[0033] Example 2: Figures 5 to 6Based on the above implementation, in order to facilitate the installation and removal of the scraper 9, a scraper quick-release device 4 is also included. The scraper 9 is installed on the scraper mounting shaft 10 via the scraper quick-release device 4. Specifically, the scraper quick-release device 4 includes two symmetrically arranged fixing sleeves 40, which are fastened to each other on the scraper mounting shaft 10 by a first threaded fastener 41. Fixing clips 42 are constructed on both sides of the fixing sleeves 40, and fixing grooves 43 are constructed inside the fixing clips 42. A fixing plate 44 is provided on one side of the scraper 9. The fixing plate 44 is inserted into the fixing groove 43 and fastened by a second threaded fastener 45. Specifically, at least two sets of scraper quick-release devices 4 are provided on the scraper mounting shaft 10, and preferably three sets are provided.

[0034] Example 3: In this application, another connection method for the scraper 9 is to fix the scraper 9 to the fixing plate 44 via a third threaded fastener 46. The fixing plate 44 is then fixed in the fixing groove 43 of the fixing clamp 42 via a second threaded fastener 45, and two fixing sleeves 40 are fixed via a first threaded fastener 41. The diameter of the hole formed between the two fixing sleeves 40 should be smaller than the diameter of the scraper mounting shaft 10, so that the two are interference-fitted to ensure that the scraper mounting shaft 10 can drive the fixing sleeves 40 to rotate synchronously. When it is necessary to replace the scraper 9 with a different specification, it is only necessary to remove the second threaded fastener 45. The fixing plate 44 and scraper 9 can be removed together, and a new fixing plate 44 and scraper 9 can be replaced. Then tighten the second threaded fastener 45. The fixing sleeve 40 will not be affected and will always be fixed on the scraper mounting shaft 10. As long as the fixing sleeve 40 and fixing clamp 42 are not damaged, the fixing sleeve 40 can be installed on the scraper mounting shaft 10 without disassembly. This can reduce the frequency of disassembly and assembly of the fixing sleeve 40, reduce the wear of the fixing sleeve 40, and ensure that the fixing sleeve 40 and the scraper mounting shaft 10 can maintain an interference fit when installed. Moreover, the fixing sleeve 40 is fixed separately and will not fall off due to the removal of the fixing plate 44.

[0035] This application uses a first threaded fastener to symmetrically fix two fixing sleeves on the scraper mounting shaft, a second threaded fastener to fix the fixing plate to the fixing clamp, and finally a third threaded fastener to fix the scraper to the fixing plate. If only the scraper and the fixing plate need to be replaced, simply remove the second and third threaded fasteners, replace the new scraper and the fixing plate, and then reinstall the second and third threaded fasteners. The fixing sleeves are always fixed on the scraper mounting shaft and will not loosen or fall into the equipment when the scraper is removed. Moreover, this device makes scraper replacement convenient and quick and can ensure stability.

[0036] The working principle of this application is as follows: The first motor 2 drives the first main shaft 6 to rotate. In use, when the machine is stopped, the scraper mounting shaft 10 is engaged into the slot 7 on the first main shaft 6 and the second main shaft 8 by the protrusions 11 on both sides of the protrusions 11. During installation, the limit pin 31 returns to the movable slot 33 when the lever 32 is moved or the limit pin 31 is pressed. After installation, the limit pin 31, pushed by the first spring 35, enters the scraper mounting shaft 10 to limit the protrusions 11. At this time, the scraper mounting shaft 10 is fixed between the first main shaft 6 and the second main shaft 8. When the first main shaft 6 rotates, the scraper mounting shaft 10 also rotates, and the rotation of the scraper mounting shaft 10 will... When the scraper 9 rotates, and the scraper mounting shaft 10 needs to be disassembled, keep the levers 32 on both sides in motion. The movement of the levers 32 will cause the limiting post 31 to move, thus disengaging the limiting post 31 from the limiting hole 30. At this point, the scraper mounting shaft 10 can be removed. When the levers 32 are moved towards the first spring 35, the second spring 36 will release pressure and push the U-shaped stop 34 on that side to press against the levers 32. When the levers 32 are released, because the elastic force of the first spring 35 is greater than that of the second spring 36, the first spring 35 will push the levers 32 towards the second spring 36 under the action of elasticity. This ensures that no matter how the levers are moved... 32. The U-shaped blocks 34 on both sides can block the movable groove 33, preventing debris in the working groove 12 from entering the movable groove 33 and causing blockage. The scraper 9 is fixed to the fixed plate 44 by the third threaded fastener 46. The fixed plate 44 is fixed in the fixed groove 43 of the fixed clamp 42 by the second threaded fastener 45. The two fixed sleeves 40 are fixed by the first threaded fastener 41. The diameter of the hole formed between the two fixed sleeves 40 should be smaller than the diameter of the scraper mounting shaft 10, so that the two are interference fit, so that the scraper mounting shaft 10 can drive the fixed sleeves 40 to rotate synchronously. When it is necessary to replace the scraper 9 of different specifications, it is only necessary to remove Remove the second threaded fastener 45, remove the fixing plate 44 together with the scraper 9, replace the fixing plate 44 and scraper 9 with new ones, and then tighten the second threaded fastener 45. The fixing sleeve 40 will not be affected and will always be fixed on the scraper mounting shaft 10. As long as the fixing sleeve 40 and the fixing clamp 42 are not damaged, the fixing sleeve 40 can be installed on the scraper mounting shaft 10 without disassembly. This can reduce the frequency of disassembly and assembly of the fixing sleeve 40, reduce the wear of the fixing sleeve 40, and ensure that the fixing sleeve 40 and the scraper mounting shaft 10 can maintain an interference fit when installed. Moreover, the fixing sleeve 40 is fixed separately and will not fall off due to the removal of the fixing plate 44.

[0037] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0038] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0039] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A simplified replacement and removal structure for a flotation machine scraper, comprising a flotation machine body (1) and a scraper (9); characterized in that, The flotation machine body (1) has a working groove (12) inside, and bearings (5) are installed on the inner walls of both sides of the working groove (12). It also includes: A first spindle (6) and a second spindle (8), each having a slot (7) on one side opposite to the first spindle (6) and the second spindle (8); and A scraper mounting shaft (10) has protrusions (11) at both ends, and the scraper (9) is mounted on the scraper mounting shaft (10); and The main spindle quick-release mechanism (3) and the first motor (2); Among them, the first motor (2) is located on one side of the flotation machine body (1), the first main shaft (6) and the second main shaft (8) are connected to the inner walls on both sides of the working tank (12) through bearings (5), one of the main shafts is connected to the output shaft of the first motor (2), and the protrusion (11) is embedded in the slot (7) and locked by the main shaft quick release mechanism (3).

2. The simplified replacement and removal structure for a flotation machine scraper according to claim 1, characterized in that: The center of the protrusion (11) is provided with a limiting hole (30) along the axial direction.

3. The simplified replacement and removal structure for a flotation machine scraper according to claim 2, characterized in that: The spindle quick-release mechanism (3) includes a limiting post (31), a lever (32), and a U-shaped stop (34); the first spindle (6) and the second spindle (8) are constructed with a movable groove (33), and the limiting post (31) is slidably disposed in the movable groove (33). The limiting post (31) passes through the slot (7) and is inserted into the limiting hole (30); the lever (32) is connected to the limiting post (31), and the limiting post (31) is embedded in the U-shaped stop (34). The U-shaped stop (34) is slidably disposed on the first spindle (6) and the second spindle (8).

4. The simplified replacement and removal structure for a flotation machine scraper according to claim 3, characterized in that: The top two sides of the movable groove (33) are provided with spring grooves (37), and the U-shaped blocks (34) are symmetrically arranged in two pieces, one of the plates of each U-shaped block (34) is slidably connected in the spring groove (37), and the joint of the two U-shaped blocks (34) is provided with a hole for the lever (32) to pass through.

5. The simplified replacement and removal structure for a flotation machine scraper according to claim 4, characterized in that: A first spring (35) and a second spring (36) are respectively provided in the two spring grooves (37). The force direction of the first spring (35) and the second spring (36) is the axial direction of the scraper mounting shaft (10).

6. The simplified replacement and removal structure for a flotation machine scraper according to claim 5, characterized in that: The first spring (35) is located near the main shaft and has a greater elastic force than the second spring (36).

7. A simplified replacement and removal structure for a flotation machine scraper according to claim 3, 4, 5, or 6, characterized in that: The U-shaped stop (34) is located on the spring groove (37) where the baffle is shorter than the baffle on the other side.

8. A simplified replacement and removal structure for a flotation machine scraper according to any one of claims 1 to 7, characterized in that: It also includes a scraper quick-release device (4), wherein the scraper (9) is mounted on the scraper mounting shaft (10) via the scraper quick-release device (4).

9. The simplified replacement and removal structure for a flotation machine scraper according to claim 8, characterized in that: The scraper quick-release device (4) includes two symmetrically arranged fixing sleeves (40), which are fastened to the scraper mounting shaft (10) by a first threaded fastener (41); fixing clips (42) are constructed on both sides of the fixing sleeves (40), and fixing grooves (43) are constructed in the fixing clips (42); a fixing plate (44) is provided on one side of the scraper (9), and the fixing plate (44) is inserted into the fixing groove (43) and fastened by a second threaded fastener (45).

10. The simplified replacement and removal structure for a flotation machine scraper according to claim 9, characterized in that: At least two sets of the scraper quick-release device (4) are provided on the scraper mounting shaft (10).

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