Dismounting and overturning tool for rotary drum body of disc separator

By designing a tool for disassembling and turning the drum of a disc separator, and utilizing a motor-driven pin shaft structure and gear combination, the drum can be hoisted and turned, solving the problem of turning large drums during disassembly, assembly, and cleaning, and reducing the labor intensity of workers.

CN224114233UActive Publication Date: 2026-04-14CSSC NANJING LUZHOU MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively disassemble and clean the drum of a large disc separator, especially for manually discharged disc separators, where the drum cannot be rotated manually.

Method used

A tool for disassembling and flipping the drum of a disc separator was designed, including a support body, a pin structure, a hoisting part, and a rotation control part. The pin structure is driven by a motor to realize the hoisting and flipping of the drum, and different speeds and directions are controlled by a combination of worm gear and gear.

Benefits of technology

This tool facilitates the hoisting and flipping of the drum body, reducing the labor intensity of workers and solving the problem of flipping during the disassembly, assembly, and cleaning of large drum bodies.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dismounting and overturning tool for a rotary drum body of a disc separator, which comprises a support body provided with two opposite mounting surfaces, and an axial movement locking part arranged on the mounting surfaces and comprising two pin shaft structures coaxially arranged, the two pin shaft structures axially move to be matched with pin hole parts formed in the surface of the rotary drum body in an inserted mode. When the tool is used for disassembling and assembling the rotary drum, the rotary drum body can be conveniently hoisted, the rotary drum body can be easily overturned, the labor intensity of workers is reduced to the maximum extent, and particularly, the problem can be solved by successful research and development of the patent tool when large-size rotary drum body parts cannot be overturned manually.
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Description

Technical Field

[0001] This utility model relates to the field of drum disassembly and assembly tooling, specifically a tool for disassembling, assembling, and flipping the drum body of a disc separator. Background Technology

[0002] Disc separators, due to their high separation factor and large production capacity, can handle highly dispersed liquid-liquid two-phase turbid liquids and liquid-solid two-phase suspensions with very low solid-phase settling velocities, which are difficult to separate effectively by conventional centrifugal separators. They can also process liquid-liquid-solid three-phase mixtures. Therefore, they are widely used in industries such as chemical, pharmaceutical, food, petroleum, and bioengineering. Disc separators come in a variety of specifications and can be divided into three categories according to their separation and slag discharge functions: clarifying type, used for liquid-solid separation to improve the purity of the liquid phase; purifying type, used for liquid-liquid-solid separation to purify the light and heavy phases of the liquid phase, while also discharging the solids; and concentrating type, used for liquid-liquid-solid and liquid-liquid separation to concentrate the heavy or light phase while discharging solid particles. Disc separators can be categorized into three types based on their slag discharge method: Manual slag discharge disc separators, where solids are manually discharged after each cycle; Piston slag discharge disc separators, where the drum is double-conical with an annular discharge port at the drum's maximum diameter, allowing for automatic slag discharge using hydraulic pressure or a small valve; and Nozzle slag discharge disc separators, where the drum is conical to increase slag storage volume and facilitate discharge, with continuous slag discharge via nozzles during operation. Regardless of the structure, all disc separator components require cleaning, especially manually discharged ones. For equipment with high throughput, the drum structure is often large, making manual rotation of the drum components impossible during disassembly and cleaning.

[0003] In view of the above, it is necessary to propose a tool for disassembling and flipping the disc separator drum to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems by providing a tool for disassembling and flipping the drum body of a disc separator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tool for disassembling and flipping the drum body of a disc separator, comprising a support body having two opposing mounting surfaces.

[0006] An axial movement locking part is arranged on the mounting surface and includes two coaxially arranged pin structures. The two pin structures move axially and are engaged with pin holes provided on the surface of the drum body.

[0007] Furthermore, the support body includes a V-shaped lifting section, with a support rod in the middle of the lifting section, and mounting surfaces opposite each other on both sides of the lifting section. The pin structure includes a locking pin, a bushing, and a insertion rod. The bushing is a cylindrical sleeve vertically mounted on the mounting surface. The locking pin passes through the bushing and is rotatably connected to it. The inner wall of the pin hole is provided with internal threads. One end of the locking pin is provided with external threads that are screwed into the pin hole, and the other end is provided with an insertion hole perpendicular to the axis. The insertion rod is inserted into the insertion hole.

[0008] Furthermore, the pin structure includes a shaft rod that passes through the bushing portion. An axial control portion for controlling the axial movement of the shaft rod is provided on the mounting surface. A positioning plate is provided at one end of the two pin rods that are close to each other. At least two insertion rods are vertically provided on the positioning plate. The pin hole portion on the surface of the drum body is inserted and engaged with the insertion rods.

[0009] Furthermore, the axial control unit includes a worm gear, a first motor, and an outer end plate. The outer end plate is disposed at the outer end of the shaft, the first motor is fixedly disposed on the outer end face of the mounting surface, and the output end of the first motor is provided with a worm gear, which is screwed to the outer edge of the outer end plate.

[0010] Furthermore, it also includes a rotation control unit for controlling the rotational movement of the shaft. The rotation control unit is at least disposed on one side of the mounting surface and includes a power output unit, a control gear unit, and a driven gear. The driven gear is disposed on the shaft. The power output by the power output unit is transmitted to the driven gear through the control gear unit. The control gear unit is used to switch between different power outputs.

[0011] Furthermore, the power output unit includes two output gears, namely a first-speed gear and a second-speed gear. The control gear unit includes a power transmission shaft rotatably connected to the mounting surface. A first intermediate gear and a second intermediate gear are rotatably connected to the power transmission shaft. A drive gear is also fixedly mounted on the power transmission shaft. The first intermediate gear meshes with the first-speed gear, the second intermediate gear meshes with the second-speed gear, and the drive gear meshes with the driven gear. A shift fork structure for controlling power switching is provided between the first intermediate gear and the second intermediate gear.

[0012] Furthermore, the driven gear is rotatably mounted on the bushing and sleeved on the shaft. The outer wall of the shaft is provided with an elongated keyway along the axial direction, and the inner wall of the driven gear is provided with key teeth that cooperate with the keyway.

[0013] Furthermore, the shift fork structure includes a shift fork gear, a shift fork handle, a shift fork rod, and a shift fork sleeve tooth. The shift fork gear is fixedly mounted on the power transmission shaft and located between the first-speed gear and the second-speed gear. The shift fork sleeve tooth is sleeved and meshed on the shift fork gear and can slide axially. The first-speed gear and the second-speed gear each have a side gear on one end face close to each other. When the axis of the shift fork sleeve tooth slides, it meshes with the side gear. One end of the shift fork handle is sleeved on the shift fork sleeve tooth and rotatably connected to it, and the other end is connected to the shift fork rod. The shift fork rod drives the shift fork handle to move axially along the power transmission shaft.

[0014] Furthermore, the power output unit includes a second motor and a planetary gear set. The output end of the second motor is connected to the sun gear of the planetary gear set. The outer wall of the gear ring of the planetary gear set forms a first-speed gear, and the planet carrier of the planetary gear set is connected to a second-speed gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the tool facilitates the hoisting of the drum body during the assembly and disassembly of the drum, and can easily achieve the rotation of the drum body, thereby maximizing the improvement of the labor intensity of workers. In particular, when it is impossible to rotate large drum body parts by manpower, the successful development of this patented tool can solve such problems. Attached Figure Description

[0016] Figure 1 This is a diagram illustrating the use of a tool for disassembling and flipping the drum body of a disc separator according to this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of a disc separator drum body disassembly and reversal tool according to the present invention;

[0018] Figure 3 This is an axonometric view of the second embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the rotation control unit and control gear unit in this utility model;

[0020] Figure 5 This is an exploded view of the rotation control unit and the control gear unit in this utility model;

[0021] In the diagram: 1. Support body; 2. Mounting surface; 3. Pin structure; 4. Pin hole; 5. Lifting part; 6. Support rod; 7. Locking pin; 8. Bushing part; 9. Insert rod; 10. Insertion hole; 11. Shaft; 12. Axial control part; 13. Positioning plate; 14. Worm gear; 15. First motor; 16. Outer end plate; 17. Rotation control part; 18. Power output part; 19. Control gear part; 20. Driven gear; 21. 21. High-speed gear; 22. Second-speed gear; 23. Power transmission shaft; 24. First intermediate gear; 25. Second intermediate gear; 26. Drive gear; 27. Keyway; 28. Key tooth; 29. ​​Shift fork gear; 30. Shift fork handle; 31. Shift fork rod; 32. Shift fork sleeve tooth; 33. Side gear; 34. Second motor; 35. Planetary gear set; 36. Sun gear; 37. Planetary carrier; 38. Drum body; 39. Bearing. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0023] Example 1:

[0024] A tool for disassembling and flipping the drum body of a disc separator, such as Figure 1 , 2 As shown, the support includes a bracket body 1 with two opposing mounting surfaces 2. The bracket body 1 includes a V-shaped lifting section 5 with a support rod 6 in the middle. The two sides of the lifting section 5 form opposing mounting surfaces 2. The support rod 6 is welded into the V-shaped lifting section 5 to form a triangular structure, making the support body 1 a stable triangular structure. The support rod 6 has a screw hole that matches the external thread of the end of the locking nail 7, so that the locking nail 7 can be screwed onto the support rod 6 when not in use, thus preventing the loss of the locking nail 7. The tip of the top of the V-shaped lifting section 5 can be easily suspended by a hook, so that the tooling and the rotating drum body 38 can be lifted together for easy operation.

[0025] It also includes an axial movement locking part, which is arranged on the mounting surface 2 and includes two coaxially arranged pin structures 3. The two pin structures 3 move axially and are engaged with the pin holes 4 provided on the surface of the drum body 38. Specifically, the pin structure 3 includes a locking pin 7, a bushing part 8, and a insertion rod 9. The bushing part 8 is a cylindrical sleeve vertically arranged on the mounting surface 2. The locking pin 7 passes through the bushing part 8 and is rotatably connected to it. The inner wall of the pin hole 4 is provided with internal threads. One end of the locking pin 7 is provided with an external thread that is screwed into the pin hole 4, and the other end is provided with an insertion hole 10 perpendicular to the axis. The insertion rod 9 is inserted into the insertion hole 10. The locking pin 7 is specially designed. One end of the locking pin 7 is an external thread structure that matches the threaded hole on the drum body 38, and the other end is the insertion hole 10. The middle section is a shaft structure. The outer diameter of the shaft section is slightly smaller than the inner diameter of the bushing part 8. The threaded section of the locking pin 7 and the shaft section can pass through the hole of the bushing part 8, while the other part of the insertion hole 10 cannot pass through the hole of the bushing part 8. The insert rod 9 is inserted into the specially designed insertion hole 10 of the locking pin 7. This part fits in the same way as a conventional pin and pin hole. After installation, the pin must not fall out. In use, the hook is connected to the lifting part 5 and moved to the position of the drum body 38. Then, the locking pin 7 is inserted into the mounting surfaces 2 on both sides. Since the insert rod 9 is inserted at the outer end, the locking pin 7 can be easily rotated by hand so that the external thread at the end is screwed into the pin hole 4, thus connecting with the drum body 38. Then the drum body 38 can be lifted and flipped for slag removal or cleaning.

[0026] Example 2:

[0027] like Figure 3-5 As shown, in this embodiment, the pin structure 3 includes a shaft 11, which passes through the bushing portion 8. An axial control portion 12 is provided on the mounting surface 2 to control the axial movement of the shaft 11. In use, the axial control portion 12 can control the shafts 11 at both ends to move closer or further apart. Specifically, as shown... Figure 4 As shown, a positioning plate 13 is provided at one end of two pins close to each other. At least two insertion rods 9 are vertically arranged on the positioning plate 13. The pin holes 4 on the surface of the drum body 38 are inserted into the insertion rods 9. This allows the insertion rods 9 to be inserted into the pin holes 4 on the outer wall of the drum body 38, thus achieving the connection between the tooling and the drum body 38. It can be understood that the axial control unit 12 can also automatically separate the tooling from the drum body 38.

[0028] Specifically, the axial control unit 12 includes a worm gear 14, a first motor 15, and an outer end plate 16. The outer end plate 16 is disposed at the outer end of the shaft 11. The first motor 15 is fixedly disposed on the outer end face of the mounting surface 2. The output end of the first motor 15 is provided with the worm gear 14, which is screwed to the outer edge of the outer end plate 16. Figure 4As shown, the diameter of the outer end plate 16 is larger than the diameter of the shaft 11, so that the outer edge of the outer end plate 16 can be engaged in the thread of the worm 14. When the first motor 15 controls the worm 14 to rotate, the shaft 11 can be controlled to move along its axial direction through this meshing relationship. It can be understood that the bushing part 8 provided on the mounting surface 2 has a sliding connection with the shaft 11, so that the axial control part 12 controls the positioning plate 13 to move closer to and away from the drum body 38, and inserts the insertion rod 9 on its end face into the pin hole part 4.

[0029] It also includes a rotation control unit 17 that controls the rotation of the shaft 11. It can be understood that the rotation control unit 17 controls the rotation of the drum body 38 at a fixed angle, thereby controlling the rotation of the drum body 38 to facilitate slag discharge and cleaning of the inner wall. Since this process is automatically controlled by the rotation control unit 17, in this embodiment, the number of insert rods 9 on the positioning plate 13 should be no less than two. The figure shows three insert rods 9, so that the rotation of the shaft 11 can be controlled to control the rotation angle of the drum body 38. The rotation control unit 17 is at least provided on one side of the mounting surface 2, or it can be provided on both shafts 11. This embodiment uses one side as an example.

[0030] Specifically, it includes a power output unit 18, a control gear unit 19, and a driven gear 20. The driven gear 20 is mounted on the shaft 11. The power output from the power output unit 18 is transmitted to the driven gear 20 through the control gear unit 19, which is used to switch between different power outputs. The power output unit 18 serves as the power output end, and its power is transmitted to the driven gear 20 through the control gear unit 19. In this embodiment, in order to control different rotational speeds and directions of the shaft 11 through a single power output unit 18, two power transmission lines are provided. The gear ratios of the two transmission lines are different, thereby controlling the shaft 11 to rotate at different speeds to control the drum body 38 to flip.

[0031] Specifically, the power output unit 18 includes two output gears, namely a first-speed gear 21 and a second-speed gear 22. The two power transmission routes of the power output unit 18 are transmitted from the first-speed gear 21 and the second-speed gear 22 respectively. The output speed and direction of the second motor 34 to the first-speed gear 21 and the second-speed gear 22 are different. Consequently, the rotation control speed and direction of the shaft 11 are also different through the power transmission routes of the two gears with different speeds.

[0032] The control gear unit 19 includes a power transmission shaft 23 rotatably connected to the mounting surface 2. A first intermediate gear 24 and a second intermediate gear 25 are rotatably connected to the power transmission shaft 23. A drive gear 26 is also fixedly mounted on the power transmission shaft 23. The first intermediate gear 24 meshes with a first-speed gear 21, the second intermediate gear 25 meshes with a second-speed gear 22, and the drive gear 26 meshes with a driven gear 20. Figure 4 , 5 As shown, the first intermediate gear 24 and the second intermediate gear 25 are connected to the power transmission shaft 23 via bearings 39. Individually, the first intermediate gear 24 and the second intermediate gear 25 are both mounted on the power transmission shaft 23 in an idle state. When the power output of either the first intermediate gear 24 or the second intermediate gear 25 is delivered to the power transmission shaft 23, the driving gear 26 can be controlled to drive the driven gear 20 to rotate, thereby controlling the rotation of the shaft 11. It can be understood that the driven gear 20 is rotatably mounted on the bushing 8 and will not move axially relative to the bushing 8. However, the driven gear 20 is mounted on the shaft 11, and when the shaft 11 moves axially, it moves axially relative to the driven gear 20. Specifically, the outer wall of the shaft 11 has an elongated keyway 27 along the axial direction, and the inner wall of the driven gear 20 has key teeth 28 that cooperate with the keyway 27. When the driven gear 20 rotates, the rotation of the shaft 11 is controlled by the cooperation of the key teeth 28 and the keyway 27, and the rotation of the shaft 11 does not interfere with its axial movement. It can be understood that when the shaft 11 rotates, its outer end plate 16 rotates relative to the worm 14, and the edge of the outer end plate 16 can rotate freely in its thread, so that the rotation of the shaft 11 is not restricted by the worm 14.

[0033] A shift fork structure for controlling power switching is provided between the first intermediate gear 24 and the second intermediate gear 25. It is understood that both the first intermediate gear 24 and the second intermediate gear 25 rotate freely on the power transmission shaft 23. By moving the shift fork structure, either the first intermediate gear 24 or the second intermediate gear 25 is selected for connection, thereby transmitting power to that intermediate gear and controlling the rotation of the shaft 11. The shift fork structure is used to select between two power transmission routes. It is also understood that the shift fork may not be connected to either of the two intermediate gears, allowing the shaft 11 to rotate freely, the same state as in Embodiment 1. In this case, the rotation of the drum body 38 can be manually controlled.

[0034] Specifically, the shift fork structure includes a shift fork gear 29, a shift fork handle 30, a shift fork rod 31, and a shift fork sleeve tooth 32. The shift fork gear 29 is fixedly mounted on the power transmission shaft 23 and located between the first-speed gear 21 and the second-speed gear 22. The shift fork sleeve tooth 32 is sleeved and meshed on the shift fork gear 29 and can slide axially. Both the first-speed gear 21 and the second-speed gear 22 have side gears 33 on their end faces close to each other. When the shift fork sleeve tooth 32 slides axially, it meshes with the side gears 33. One end of the shift fork handle 30 is sleeved on the shift fork sleeve tooth 32 and rotatably connected to it, while the other end is connected to the shift fork rod 31. The shift fork rod 31 drives the shift fork handle 30 to move axially along the power transmission shaft 23. It can be understood that one end of the shift fork rod 31 extends through the mounting surface 2, thus allowing convenient control of the shift fork structure's position from the outside. Figure 5 As shown, the gears fixedly mounted on the power transmission shaft 23 include a drive gear 26 and a shift fork gear 29. When the shift fork moves to either side, the power of the middle gear on that side is transmitted to the shift fork gear 29 via the corresponding side gear 33, thereby controlling the rotation of the power transmission shaft 23. The shift fork gear 29 has the same diameter, module, and number of teeth as the side gears 33 on both sides. Therefore, the shift fork sleeve 32 can be controlled by the shift fork handle 30 to move to one side and simultaneously engage with the side gear 33 and the shift fork gear 29 on one side, realizing the transmission of power. When it is necessary to switch the power route, it is only necessary to move the shift fork structure to a different position, thus achieving convenient switching of power.

[0035] The power output unit 18 includes a second motor 34 and a planetary gear set 35. The output end of the second motor 34 is connected to the sun gear 36 of the planetary gear set 35. The outer wall of the ring gear of the planetary gear set 35 forms a first-speed gear 21, and the planet carrier 37 of the planetary gear set 35 is connected to a second-speed gear 22. Figure 5 As shown, power is output from the second motor 34 and transmitted to the sun gear 36. The sun gear 36 transmits power to the ring gear (i.e., the first-speed gear 21) via the planetary gears, while the power of the planet carrier 37 is transmitted to the second-speed gear 22. This allows one motor to output two speeds with different reduction ratios. It is understood that the outer casing of the planetary gear set 35 is not shown in the figure. In actual control, those skilled in the art can also set a structure for positioning the first-speed gear 21 and the second-speed gear 22 inside the casing, thereby limiting the ring gear or the planet carrier 37. It is understood that this control component can be connected to the shift fork 31 to achieve synchronous action control, thereby realizing two power outputs from the power output unit 18.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for disassembling and flipping the drum body of a disc separator, comprising a support body (1), characterized in that, The bracket (1) has two opposing mounting surfaces (2). An axial movement locking part is arranged on the mounting surface (2) and includes two coaxially arranged pin structures (3), which move axially and engage with pin holes (4) provided on the surface of the drum body (38).

2. The disc separator drum body disassembly and reversal tool according to claim 1, characterized in that, The bracket body (1) includes a V-shaped hoisting part (5), a support rod (6) is provided in the middle of the hoisting part (5), and mounting surfaces (2) are formed on both sides of the hoisting part (5). The pin structure (3) includes a locking pin (7), a bushing part (8), and a plug rod (9). The bushing part (8) is a cylindrical sleeve vertically arranged on the mounting surface (2). The locking pin (7) passes through the bushing part (8) and is rotatably connected to it. The inner wall of the pin hole part (4) is provided with an internal thread. One end of the locking pin (7) is provided with an external thread that is screwed to the pin hole part (4), and the other end is provided with a plug hole (10) perpendicular to the axis. The plug rod (9) is inserted into the plug hole (10).

3. The disc separator drum body disassembly and reversal tool according to claim 1, characterized in that, The pin structure (3) includes a shaft (11), which passes through the bushing (8). An axial control part (12) for controlling the axial movement of the shaft (11) is provided on the mounting surface (2). A positioning plate (13) is provided at one end of the two pins close to each other. At least two insert rods (9) are vertically provided on the positioning plate (13). The pin hole (4) on the surface of the drum body (38) is inserted and engaged with the insert rods (9).

4. The disc separator drum body disassembly and reversal tool according to claim 3, characterized in that, The axial control unit (12) includes a worm (14), a first motor (15), and an outer end plate (16). The outer end plate (16) is disposed at the outer end of the shaft (11). The first motor (15) is fixedly disposed on the outer end face of the mounting surface (2). The output end of the first motor (15) is provided with a worm (14), which is screwed to the outer edge of the outer end plate (16).

5. The disc separator drum body disassembly and reversal tool according to claim 3, characterized in that, It also includes a rotation control unit (17) for controlling the rotation of the shaft (11). The rotation control unit (17) is provided on at least one side of the mounting surface (2). It includes a power output unit (18), a control gear unit (19), and a driven gear (20). The driven gear (20) is provided on the shaft (11). The power output by the power output unit (18) is transmitted to the driven gear (20) through the control gear unit (19). The control gear unit (19) is used to switch between different power outputs.

6. The disc separator drum body disassembly and reversal tool according to claim 5, characterized in that, The power output unit (18) includes two output gears, namely a first-speed gear (21) and a second-speed gear (22). The control gear unit (19) includes a power transmission shaft (23) rotatably connected to the mounting surface (2). A first intermediate gear (24) and a second intermediate gear (25) are rotatably connected on the power transmission shaft (23). A drive gear (26) is also fixedly provided on the power transmission shaft (23). The first intermediate gear (24) meshes with the first-speed gear (21), the second intermediate gear (25) meshes with the second-speed gear (22), and the drive gear (26) meshes with the driven gear (20). A shift fork structure for controlling power switching is provided between the first intermediate gear (24) and the second intermediate gear (25).

7. A disc separator drum body disassembly and reversal tool according to claim 5, characterized in that, The driven gear (20) is rotatably mounted on the bushing (8) and sleeved on the shaft (11). The outer wall of the shaft (11) is provided with a long strip keyway (27) along the axial direction, and the inner wall of the driven gear (20) is provided with key teeth (28) that cooperate with the keyway (27).

8. A disc separator drum body disassembly and reversal tool according to claim 6, characterized in that, The shift fork structure includes a shift fork gear (29), a shift fork handle (30), a shift fork rod (31), and a shift fork sleeve tooth (32). The shift fork gear (29) is fixedly mounted on the power transmission shaft (23) and located between the first-speed gear (21) and the second-speed gear (22). The shift fork sleeve tooth (32) is sleeved and meshed on the shift fork gear (29) and can slide axially. The first-speed gear (21) and the second-speed gear (22) are each provided with a side gear (33) on one side of their respective end faces. When the axis of the shift fork sleeve tooth (32) slides, it meshes with the side gear (33). One end of the shift fork handle (30) is sleeved on the shift fork sleeve tooth (32) and rotatably connected to it. The other end is connected to the shift fork rod (31). The shift fork rod (31) drives the shift fork handle (30) to move axially along the power transmission shaft (23).

9. A disc separator drum body disassembly and reversal tool according to claim 6, characterized in that, The power output unit (18) includes a second motor (34) and a planetary gear set (35). The output end of the second motor (34) is connected to the sun gear (36) of the planetary gear set (35). The outer wall of the gear ring of the planetary gear set (35) forms a first-speed gear (21). The planet carrier (37) of the planetary gear set (35) is connected to a second-speed gear (22).