A tool for disassembling a toothed arbor

Abstract

This utility model relates to a toothed shank disassembly tool, which includes a hook, a push post, a support block, a disassembly screw, a pin, a bolt, and an anti-rotation block. The hook is located inside the electromagnetic assembly and is used to hook the toothed shank part to be disassembled. The push post is a threaded columnar structure, vertically positioned above the support block, with its internal threads engaging with the disassembly screw. The support block is located inside the electromagnetic assembly at its lower part, providing stable support. The pin is rod-shaped and horizontally positioned on the outer side of the upper end of the disassembly screw. The bolt passes horizontally through bolt holes on the hook and push post, securing them together as a single unit. The anti-rotation block is flat and horizontally inserted into a pre-drilled groove inside the push post, preventing relative rotation between the hook and the push post. This utility model can meet the requirements for disassembling the toothed shank of the electromagnetic assembly on the trailing edge flap reciprocating actuator assembly, enabling normal component maintenance work. Its clear structure facilitates application and improves maintenance efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the technical field of toothed handle disassembly tools, and in particular to a toothed handle disassembly tool. Background Technology

[0002] During the maintenance of Boeing 737 series commercial aircraft, repairing the tail-edge flap reciprocating actuator assembly requires disassembling the gear shank of the electromagnetic component. However, while existing maintenance manuals describe methods for adjusting the number of shims in the electromagnetic component of the actuator, they do not provide specific tooling information for disassembling the gear shank. Because the gear shank and its mating parts are tightly fitted, maintenance personnel cannot successfully disassemble the gear shank without tools, relying solely on the methods provided in the manual. This severely impacts the progress and efficiency of the maintenance work. Utility Model Content

[0003] The purpose of this utility model is to provide a toothed shank disassembly tool, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A toothed shank disassembly tool, comprising:

[0006] The hook, located inside the electromagnetic assembly, is used to hook the toothed shank part to be disassembled. Its top is connected to the top post, and its bottom contacts the support block.

[0007] The top column is a threaded columnar structure, vertically installed above the support block. Its internal threads mate with the disassembly screw, and its outer side is fixed to the pull hook by bolts. The top is connected to the disassembly screw and is used to transmit rotational force and lifting force.

[0008] The support block is a circular block structure placed inside the lower part of the electromagnetic component. The top supports the top column, and the bottom contacts the bottom surface inside the electromagnetic component, so as to play a stable supporting role.

[0009] The screw is a threaded rod-shaped structure that passes vertically through the top post and engages with it. Its lower end is located inside the top post and meshes with the internal threads of the top post, while its upper end extends out of the top post and connects with the pin.

[0010] The pin, which is rod-shaped, is horizontally positioned at the upper end of the disassembly screw and is vertically connected to the disassembly screw to apply rotational force;

[0011] Bolts are passed horizontally through bolt holes on the hook and the top post to fasten the hook and the top post into a single unit and prevent them from rotating relative to each other.

[0012] The anti-rotation block is flat and horizontally inserted into the reserved groove inside the top column, located between the top column and the pull hook, to prevent the pull hook and the top column from rotating relative to each other.

[0013] In some specific embodiments, the hook is arc-shaped and hooks onto the toothed part in the electromagnetic assembly. The toothed part is disassembled by rotating the disassembly screw to drive it upward.

[0014] In some specific embodiments, the bottom of the top post is placed on the support block, and its internal threads cooperate with the disassembly screw. By rotating the disassembly screw, the pull hook and the top post move upward.

[0015] In some specific embodiments, the length direction of the support block is parallel to the bottom edge of the electromagnetic component, and the width direction is adapted to the internal width of the electromagnetic component.

[0016] In some specific embodiments, the rotation direction of the disassembly screw is related to the lifting action direction, and the hook is pulled upward by rotating the disassembly screw.

[0017] In some specific embodiments, the insertion is made into a hole on the disassembly screw, with both ends located outside the disassembly screw.

[0018] In some specific embodiments, the head of the bolt is located on one side of the pull hook and the nut is located on the other side of the top post, and the pull hook and the top post are tightly connected by tightening the nut.

[0019] In some specific embodiments, the length direction of the anti-rotation block is perpendicular to the axis of the top column, and the width direction is adapted to the width of the reserved groove inside the top column.

[0020] In some specific embodiments, a rotating tool that matches the disassembly screw is also included, the insert end of which is inserted into the end of the pin for applying rotational force to the disassembly screw.

[0021] In some specific embodiments, the pull hook, top post, support block, disassembly screw, pin, bolt and anti-rotation block cooperate with each other to form a complete disassembly system, realizing the stable disassembly of the gear shank parts.

[0022] The beneficial effects of this utility model are as follows: This utility model discloses a toothed shank disassembly tool, which includes a hook, a top post, a support block, a disassembly screw, a pin, a bolt, and an anti-rotation block. The hook is located inside the electromagnetic assembly and is used to hook the toothed shank part to be disassembled; the top post is a threaded columnar structure, vertically positioned above the support block, with its internal threads engaging with the disassembly screw; the support block is located inside the electromagnetic assembly at the lower part, providing stable support; the pin is rod-shaped and horizontally positioned on the outer side of the upper end of the disassembly screw; the bolt passes horizontally through bolt holes on the hook and the top post, fastening the two together as a whole; the anti-rotation block is flat and horizontally inserted into a pre-reserved groove inside the top post, used to prevent relative rotation between the hook and the top post.

[0023] This invention effectively solves the problem of the inconvenient disassembly of the gear shank in the prior art, and provides a special tool for the maintenance of the tail edge flap reciprocating actuator assembly of the flap control of Boeing 737 series civil aircraft, filling the gap in existing maintenance tools.

[0024] With a reasonable structural design, the various components work closely together through threaded connections, plug-in fits, and blocking fits to form a complete disassembly system. This system can reliably disassemble the gear shank parts, improving the reliability and safety of maintenance work.

[0025] It is easy to operate. Maintenance personnel can simply rotate the disassembly screw to drive the hook to lift the toothed part upwards, saving time and effort, greatly improving maintenance efficiency, helping to shorten aircraft maintenance downtime, and improving aircraft operational efficiency.

[0026] The tool's components employ common mechanical structures, making them easy to manufacture and assemble. They are also durable, reusable multiple times, and reduce maintenance costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a toothed handle disassembly tool according to this utility model;

[0028] Figure 2 This is a three-dimensional structural diagram of a toothed handle disassembly tool according to this utility model;

[0029] Figure 3 This is a schematic diagram of the pull hook structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the top column structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the support block structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the disassembly screw structure of this utility model;

[0033] Figure 7 This is a schematic diagram of the pin structure of this utility model;

[0034] Figure 8 This is a schematic diagram of the bolt structure of this utility model;

[0035] Figure 9 This is a schematic diagram of the anti-rotation block structure of this utility model.

[0036] In the attached diagram: 1. Hook; 2. Top post; 3. Support block; 4. Disassembly screw; 5. Pin; 6. Bolt; 7. Anti-rotation block. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0038] Reference Figures 1 to 9 The toothed shank disassembly tool shown includes:

[0039] Hook 1 is located inside the electromagnetic assembly and is used to hook the toothed part to be disassembled. Its top is connected to the top post 2 and its bottom is in contact with the support block 3.

[0040] The top column 2 is a threaded column structure, vertically set above the support block 3. Its internal threads cooperate with the disassembly screw 4, and its outer side is fixedly connected to the hook 1 by bolts 6. Its top is connected to the disassembly screw 4 to transmit rotational force and lifting force.

[0041] Support block 3 is a circular block structure placed inside the lower part of the electromagnetic component. Its top supports the top column 2, and its bottom contacts the bottom surface inside the electromagnetic component, thus providing stable support.

[0042] The screw 4 is a threaded rod structure that passes through the top post 2 vertically and is threaded with it. Its lower end is located inside the top post 2 and engages with the internal thread of the top post 2. Its upper end extends out of the top post 2 and is connected to the pin 5.

[0043] Pin 5, in the shape of a rod, is horizontally positioned at the upper end of the disassembly screw 4 and is vertically connected to the disassembly screw 4 to apply rotational force;

[0044] Bolt 6 passes horizontally through the bolt holes on hook 1 and top post 2, fastening hook 1 and top post 2 into a whole to prevent them from rotating relative to each other.

[0045] The anti-rotation block 7 is flat and horizontally inserted into the reserved groove inside the top column 2, located between the top column 2 and the hook 1, to prevent the hook 1 and the top column 2 from rotating relative to each other.

[0046] In this embodiment, the hook 1 is arc-shaped and can stably hook the toothed part in the electromagnetic assembly. Disassembly is achieved by rotating the disassembly screw 4 to drive it upward.

[0047] The internal thread of the top column 2 engages with the disassembly screw 4 to transmit rotational force and lifting force.

[0048] Working principle of top column 2: By rotating the disassembly screw 4, the hook 1 and top column 2 are driven to move upward, thereby realizing the disassembly of the toothed shank parts.

[0049] Support block 3 dimensions design: the length direction is parallel to the bottom edge of the electromagnetic component, and the width direction is adapted to the internal width of the electromagnetic component.

[0050] Function of disassembly screw 4: Rotating disassembly screw 4 drives hook 1 to pull the toothed part upward.

[0051] Pin 5 is inserted into the hole on the disassembly screw 4, with both ends located on the outside of the disassembly screw 4.

[0052] The head of bolt 6 is located on one side of hook 1, and the nut is located on the other side of top post 2. Tightening the nut achieves a tight connection.

[0053] Anti-rotation block 7 prevents the relative rotation of hook 1 and top post 2, ensuring the overall stability of the tool.

[0054] In some specific embodiments, the hook 1 is arc-shaped and hooks the toothed part in the electromagnetic assembly. The toothed part is disassembled by rotating the disassembly screw 4 to drive it to move upward.

[0055] In this embodiment, the hook 1 is designed in an arc shape. This shape can better fit the shape of the toothed part in the electromagnetic assembly, thereby achieving the purpose of firmly hooking the toothed part.

[0056] Working principle: When disassembly is required, the disassembly screw 4 is rotated. Due to the threaded engagement between the screw and the top post 2, the rotational motion is converted into the upward linear motion of the hook 1, which in turn drives the toothed shank to move upward together, thus achieving disassembly.

[0057] In some specific embodiments, the bottom of the top post 2 is placed on the support block 3, and its internal threads cooperate with the disassembly screw 4. By rotating the disassembly screw 4, the hook 1 and the top post 2 are driven to move upward.

[0058] In this embodiment, the bottom of the top column 2 is placed on the support block 3, which provides a stable support foundation for the top column 2, ensuring that the top column 2 remains vertical and stable during operation.

[0059] Internal threads and fit: The top post 2 is designed with internal threads that fit with the threads of the disassembly screw 4. When the disassembly screw 4 rotates, the fit between the threads causes the hook 1 and the top post 2 to move upward as a whole, thereby lifting and disassembling the toothed part.

[0060] In some specific embodiments, the length direction of the support block 3 is parallel to the bottom edge of the electromagnetic component, and the width direction is adapted to the internal width of the electromagnetic component.

[0061] In this embodiment, the length direction of the support block 3 is parallel to the bottom edge of the electromagnetic component. This design allows the support block 3 to better adapt to the internal spatial structure of the electromagnetic component, ensuring that it fits tightly against the bottom surface of the electromagnetic component when placed.

[0062] Width adaptability: Its width direction is adapted to the internal width of the electromagnetic component, ensuring that the support block 3 is placed stably inside the electromagnetic component and will not wobble from side to side, thus providing stable support for the top column 2.

[0063] In some specific embodiments, the rotation direction of the disassembly screw 4 is related to the lifting action direction, and the hook 1 is lifted upward by rotating the disassembly screw 4.

[0064] In this embodiment, the rotation direction of the disassembly screw 4 is related to the lifting action direction of the hook 1. When the disassembly screw 4 rotates in a certain direction, the hook 1 moves upward through the threaded engagement, thereby realizing the lifting and disassembly of the toothed part.

[0065] Operation method: The maintenance personnel can rotate the screw 4 to convert the rotational motion into the linear lifting motion of the hook 1 by taking advantage of the mechanical advantages of the thread. This operation method is simple and labor-saving and can effectively complete the disassembly task.

[0066] In some specific embodiments, 5 is inserted into the hole on the disassembly screw 4, with both ends located on the outside of the disassembly screw 4.

[0067] In this embodiment, the pin 5 is inserted into the hole at the upper end of the disassembly screw 4, and both ends of the pin 5 are located on the outside of the disassembly screw 4. This installation method allows the pin 5 to be stably fixed on the disassembly screw 4.

[0068] Function: Pin 5 is mainly used to apply rotational force. Maintenance personnel can apply rotational force to pin 5 to drive the disassembly screw 4 to rotate, thereby driving the hook 1 to pull the toothed part upward.

[0069] In some specific embodiments, the head of the bolt 6 is located on one side of the hook 1, and the nut is located on the other side of the top post 2. The hook 1 and the top post 2 are tightly connected by tightening the nut.

[0070] In this embodiment, the head of the bolt 6 is located on one side of the hook 1, while the nut is located on the other side of the top post 2. By tightening the nut, the hook 1 and the top post 2 can be tightly connected together.

[0071] Function: This connection method effectively prevents relative rotation between the hook 1 and the top column 2 during operation, ensuring the stability of the connection between the two and improving the reliability of the disassembly work.

[0072] In some specific embodiments, the length direction of the anti-rotation block 7 is perpendicular to the axis of the top column 2, and the width direction is adapted to the width of the reserved groove inside the top column 2.

[0073] In this embodiment, the length direction of the anti-rotation block 7 is perpendicular to the axis of the top column 2. This design allows the anti-rotation block 7 to be better inserted into the reserved groove inside the top column 2 and to fit tightly against the side wall of the reserved groove.

[0074] Width adaptability: Its width direction is adapted to the width of the reserved groove inside the top column 2, ensuring that the anti-rotation block 7 can stably block the relative rotation of the hook 1 and the top column 2 after being inserted into the reserved groove, further enhancing the overall stability of the tool.

[0075] In some specific embodiments, a rotating tool that matches the disassembly screw 4 is also included, the insert end of which is inserted into the end of the pin 5 to apply rotational force to the disassembly screw 4.

[0076] In this embodiment, a rotating tool that matches the disassembly screw 4 is also included. The plug end of the rotating tool can be inserted into the end of the pin 5, thereby connecting the rotating tool to the disassembly screw 4.

[0077] Function: Using a rotary tool makes it easier to apply rotational force to the disassembly screw 4. Compared to manual rotation, using a rotary tool provides more stable and efficient rotational power, thus completing the disassembly work more quickly and effortlessly.

[0078] In some specific embodiments, the pull hook 1, the top post 2, the support block 3, the disassembly screw 4, the pin 5, the bolt 6, and the anti-rotation block 7 cooperate with each other to form a complete disassembly system, thereby achieving stable disassembly of the gear shank parts.

[0079] In this embodiment, the seven components—hook 1, top post 2, support block 3, disassembly screw 4, pin 5, bolt 6, and anti-rotation block 7—are closely coordinated with each other, and together they constitute a complete and efficient disassembly system.

[0080] Disassembly Implementation: In actual disassembly work, each component works in concert according to its design function and the relationship between them to ensure that the gear shank parts can be stably disassembled, which improves the efficiency and quality of maintenance work and provides a strong guarantee for the rapid maintenance of aircraft.

[0081] Overall working principle

[0082] Core Drive: The disassembly screw 4 is the core drive component of the entire disassembly tool. Through its engagement with the internal threads of the top post 2, it converts rotational motion into linear lifting motion of the hook 1. Specifically, when the disassembly screw 4 rotates, its engagement with the threads of the top post 2 generates vertical displacement, thereby driving the hook 1 upwards.

[0083] Force transmission and stabilization: After hook 1 hooks the toothed shank part, the lifting force generated by rotating the disassembly screw 4 is applied to the toothed shank part through hook 1. The top post 2 not only provides the structural basis for the threaded engagement of the disassembly screw 4, but also transmits the rotational force to hook 1, ensuring that hook 1 can stably drive the toothed shank part upwards. The support block 3 provides stable support for the top post 2, and its bottom contacts the inner bottom surface of the electromagnetic assembly, ensuring the stability of the entire tool during operation.

[0084] Anti-rotation design: Bolt 6 secures the hook 1 and the top post 2 as a single unit, preventing relative rotation between the two during operation and ensuring efficient and stable force transmission. Simultaneously, the anti-rotation block 7 is inserted into a pre-drilled groove inside the top post 2, further blocking relative rotation between the hook 1 and the top post 2 and enhancing the overall stability of the tool.

[0085] Operation: Maintenance personnel typically use a matching rotary tool, such as a wrench inserted into the end of the pin 5, to rotate and disassemble the screw 4, thereby pulling the toothed shank upwards using the hook 1 and completing the disassembly. The pin 5, as the operating component for applying rotational force, is horizontally positioned on the outer side of the upper end of the screw 4, providing a point of leverage for the maintenance personnel.

[0086] working methods

[0087] Preparation: First, ensure that the electromagnetic components are in a removable state, and clean any impurities or obstacles that may exist inside the electromagnetic components to provide good conditions for the installation and operation of disassembly tools.

[0088] Installation and disassembly tools: Place the support block 3 inside the electromagnetic assembly, ensuring its bottom is tightly fitted against the inner bottom surface of the assembly. Place the top post 2 vertically on the support block 3, ensuring the internal threads of the top post 2 are aligned with the disassembly screw 4 and engaged. Hook the pull hook 1 onto the toothed part to be disassembled, ensuring its arc-shaped structure firmly holds the part. Secure the pull hook 1 and the top post 2 together with bolts 6 to prevent relative rotation. Insert the anti-rotation block 7 horizontally into the pre-drilled groove inside the top post 2 to further enhance structural stability. Engage the lower end of the disassembly screw 4 with the internal threads of the top post 2, with the upper end extending out and connecting to the pin 5.

[0089] Disassembly Procedure: The maintenance personnel use a rotating tool, such as a wrench, that matches the disassembly screw 4, inserting its connector into the end of the pin 5. A rotational force is applied to the disassembly screw 4 using the rotating tool, causing it to rotate in the predetermined direction. As the disassembly screw 4 rotates, its engagement with the internal threads of the push post 2 causes the pull hook 1 and the push post 2 to move upwards as a whole. The pull hook 1 hooks onto the toothed shank part and pulls it upwards, thus disassembling the toothed shank part. During disassembly, the movement of the toothed shank part is observed to ensure smooth disassembly and to avoid jamming or excessive force.

[0090] Disassembly complete and tool removal: After the gear shank part has been completely disassembled, stop rotating the disassembly screw 4. Remove the anti-rotation block 7, bolt 6, disassembly screw 4, pin 5, and other components in sequence. Disconnect the pull hook 1 from the gear shank part. Finally, remove the entire disassembly tool from inside the electromagnetic assembly. Properly store the disassembled gear shank part for subsequent maintenance or replacement.

[0091] Example

[0092] Background: During routine maintenance on a Boeing 737 aircraft, maintenance personnel needed to repair the electromagnetic assembly of the tail-edge flap reciprocating actuator. One of the key steps was disassembling the gear shank of the electromagnetic assembly. Previously, without specialized disassembly tools, this process was difficult and inefficient.

[0093] Tool Selection and Installation: Maintenance personnel should select a suitable toothed shank disassembly tool based on the specific dimensions and specifications of the electromagnetic component. Following the installation steps outlined above, place the support block 3 inside the electromagnetic component at its lower level. Install the top post 2 and the pull hook 1 in sequence, ensuring a tight connection and preventing relative rotation using bolts 6 and anti-rotation blocks 7. Engage the disassembly screw 4 with the internal thread of the top post 2 and install the pin 5.

[0094] Disassembly process: The maintenance personnel use a rotary tool, such as a wrench, inserted into the end of pin 5 to begin rotating the disassembly screw 4. During rotation, the disassembly screw 4 causes the pull hook 1 and the push post 2 to move upward as a whole. The pull hook 1 firmly hooks onto the toothed shank part and gradually pulls it upward. After several rotations, the toothed shank part is smoothly disassembled.

[0095] Follow-up procedures: After disassembly, maintenance personnel carefully removed each component of the disassembly tools and inspected and repaired the disassembled gear shank parts. Because the disassembly process was smooth and efficient, the overall maintenance time was significantly reduced, allowing the aircraft to return to operation more quickly.

[0096] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0097] Improving maintenance efficiency: In the past, due to the lack of specialized tools, maintenance personnel had to spend a lot of time and effort manually disassembling gear shank parts, and the success rate of disassembly was difficult to guarantee. This utility model's gear shank disassembly tool allows for quick disassembly of gear shank parts through a simple rotation operation, greatly saving maintenance time and improving maintenance efficiency.

[0098] Enhanced maintenance reliability: The tool's components work closely together through threaded connections, plug-in fits, and blocking fits to form a complete disassembly system, enabling stable disassembly of the gear shank. This stable and reliable disassembly method reduces the risk of component damage or disassembly failure due to instability during the disassembly process, thus improving the reliability of maintenance work.

[0099] Reduced maintenance costs: The tool's components utilize common mechanical structures, making them easy to manufacture and assemble, and ensuring durability and reusability. Compared to frequently replacing damaged parts or spending considerable time on complex manual disassembly, using this disassembly tool reduces maintenance costs and improves the economic efficiency of maintenance work.

[0100] Ensuring flight safety: By efficiently and reliably disassembling the gear shank components, the electromagnetic components can be repaired and maintained in a timely manner, ensuring the normal operation of the trailing edge flap reciprocating actuator assembly, thereby ensuring the flight safety of the aircraft, which is of great safety significance.

[0101] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A toothed shank disassembly tool, characterized in that, include: The hook (1) is set inside the electromagnetic assembly and is used to hook the toothed part to be disassembled. Its top is connected to the top post (2) and its bottom is in contact with the support block (3). The top column (2) is a threaded column structure, which is vertically set above the support block (3). The internal thread is engaged with the disassembly screw (4), and the outer side is fixedly connected to the pull hook (1) by bolts (6). The top is connected to the disassembly screw (4) to transmit rotational force and lifting force. The support block (3) is a circular block structure, placed inside the lower part of the electromagnetic component. The top supports the top column (2), and the bottom contacts the bottom surface of the electromagnetic component, which plays a stable supporting role. The screw (4) is a threaded rod structure that passes through the top post (2) vertically and engages with it. Its lower end is located inside the top post (2) and engages with the internal thread of the top post (2). Its upper end extends out of the top post (2) and connects with the pin (5). The pin (5) is rod-shaped and is horizontally set at the upper end of the disassembly screw (4), and is vertically connected to the disassembly screw (4) to apply rotational force; Bolt (6) passes horizontally through the bolt holes on the hook (1) and the top post (2) to fasten the hook (1) and the top post (2) into a whole, preventing them from rotating relative to each other; The anti-rotation block (7) is flat and horizontally inserted into the reserved groove inside the top column (2). It is located between the top column (2) and the hook (1) to prevent the hook (1) and the top column (2) from rotating relative to each other.

2. The toothed shank disassembly tool according to claim 1, characterized in that, The hook (1) is arc-shaped and hooks the toothed part in the electromagnetic assembly. The toothed part is disassembled by rotating the disassembly screw (4) to drive it to move upward.

3. The toothed shank disassembly tool according to claim 1, characterized in that, The bottom of the top post (2) is placed on the support block (3), and its internal thread is engaged with the disassembly screw (4). By rotating the disassembly screw (4), the hook (1) and the top post (2) are driven to move upward.

4. The toothed shank disassembly tool according to claim 1, characterized in that, The length direction of the support block (3) is parallel to the bottom edge of the electromagnetic component, and the width direction is adapted to the internal width of the electromagnetic component.

5. The toothed shank disassembly tool according to claim 1, characterized in that, The rotation direction of the disassembly screw (4) is related to the lifting action direction. By rotating the disassembly screw (4), the hook (1) is lifted upward to pull the toothed part.

6. The toothed shank disassembly tool according to claim 1, characterized in that, The pin (5) is inserted into the hole on the disassembly screw (4), with both ends located on the outside of the disassembly screw (4).

7. The toothed shank disassembly tool according to claim 1, characterized in that, The head of the bolt (6) is located on one side of the hook (1), and the nut is located on the other side of the top post (2). By tightening the nut, the hook (1) and the top post (2) are tightly connected.

8. The toothed shank disassembly tool according to claim 1, characterized in that, The length direction of the anti-rotation block (7) is perpendicular to the axis of the top column (2), and the width direction is adapted to the width of the reserved groove inside the top column (2).

9. The toothed shank disassembly tool according to claim 1, characterized in that, It also includes a rotating tool that matches the disassembly screw (4), the plug of which is inserted into the end of the pin (5) to apply rotational force to the disassembly screw (4).

10. The toothed shank disassembly tool according to claim 1, characterized in that, The hook (1), top post (2), support block (3), disassembly screw (4), pin (5), bolt (6) and anti-rotation block (7) cooperate with each other to form a complete disassembly system, realizing the stable disassembly of the toothed shank parts.

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