A special disassembling tool for high-voltage regulator

Abstract

The utility model relates to a kind of special disassembly tool of high-pressure regulator, tool main body has guide rod, the front end of guide rod is equipped with the slotted area that can be deformed;Driving assembly has screw rod, and ball is equipped on screw rod;Among them, the threaded portion of screw rod is matched with guide rod, ball is located on the side of screw rod close to the front end of guide rod, and guide rod is retracted by rotating screw rod, when guide rod is retracted to bottom, ball opens slotted area, so that guide rod and valve seat inner wall are attached, the disassembly of valve seat is realized.The utility model can efficiently and non-damagingly disassemble valve seat, optimizes the disassembly process of high-pressure regulator in civil aviation aircraft accessory maintenance, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of civil aircraft component maintenance technology, and in particular to a special disassembly tooling for high-voltage regulators. Background Technology

[0002] In the field of civil aviation aircraft component maintenance, the separation of the valve seat from the housing of the high-pressure regulator, a key component in the bleed air system of Boeing aircraft, has always been a challenge. Because the high-pressure regulator operates in a high-temperature environment, the internal seals of the housing age, causing severe adhesion between the valve seat and the housing, making separation difficult. Current technology lacks specific valve seat disassembly tools in manuals and is also scarce in the industry. This makes it difficult for operators to efficiently and non-destructively separate the valve seat from the housing during actual maintenance, easily leading to valve seat damage due to improper operation, and ultimately causing the entire component to be scrapped, severely impacting maintenance efficiency and quality. Utility Model Content

[0003] The purpose of this invention is to provide a special disassembly tooling for high-voltage regulators, 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 special disassembly tooling for high-voltage regulators, comprising:

[0006] The tooling body has a guide rod, and the front end of the guide rod has a deformable slotted area;

[0007] A drive assembly having a screw with a ball on the screw;

[0008] The screw and the guide rod are threaded together, and the ball is located on the side of the screw near the front end of the guide rod. By rotating the screw, the guide rod is extended and retracted. When the guide rod is extended and retracted to the bottom, the ball opens the slotted area, so that the guide rod fits against the inner wall of the valve seat, thus realizing the disassembly of the valve seat.

[0009] In some specific embodiments, the rear end of the guide rod is provided with a threaded hole, and the front end of the screw is provided with an external thread. The external thread cooperates with the threaded hole, so that the screw can extend and retract along the axial direction of the guide rod.

[0010] In some specific embodiments, the guide rod and the screw are coaxially connected.

[0011] In some specific embodiments, the slit area includes multiple longitudinal slits evenly distributed along the circumference of the guide rod, with the longitudinal slits extending inward from the front end of the guide rod to form multiple lobes that can open outward.

[0012] In some specific embodiments, the diameter of the sphere is larger than the diameter of the screw, and the surface of the sphere corresponds to the slotted area at the front end of the guide rod, which is used to open the flap.

[0013] In some specific embodiments, the tooling body also includes a base, which is fixedly connected to the rear end of the guide rod. The base is provided with mounting holes for fixing the tooling body on the worktable.

[0014] In some specific embodiments, the drive assembly further includes a handle fixedly connected to the end of the screw away from the ball, for rotating the screw.

[0015] In some specific embodiments, the handle is provided with anti-slip texture to increase friction during operation and prevent slippage.

[0016] In some specific embodiments, both the tooling body and the drive assembly are made of martensitic stainless steel.

[0017] In some specific embodiments, the outer surface of the front end of the guide rod is adapted to the inner wall of the valve seat, ensuring that the outer diameter of the front end of the guide rod can fit tightly against the inner wall of the valve seat after the diameter is increased.

[0018] The beneficial effects of this utility model are as follows: This utility model relates to a special disassembly tooling for a high-pressure regulator. The tooling body has a guide rod with a deformable slit area at the front end. The drive assembly has a screw with a ball on it. The screw and the threaded part of the guide rod are engaged. The ball is located on the side of the screw near the front end of the guide rod. By rotating the screw, the guide rod is extended and retracted. When the guide rod is extended and retracted to the bottom, the ball opens the slit area, allowing the guide rod to fit against the inner wall of the valve seat, thus realizing the disassembly of the valve seat.

[0019] This utility model presents a special disassembly tooling for high-pressure regulators. Through a unique structural design, it achieves efficient separation of the valve seat from the housing, solving the problem of non-destructive valve seat disassembly in existing technologies. Its main advantages are as follows:

[0020] Highly efficient disassembly: Utilizing the threaded engagement of the screw and guide rod, as well as the ingenious design of the slit area at the top of the ball, the front end of the guide rod can easily fit against the inner wall of the valve seat, thereby achieving rapid separation of the valve seat from the housing, greatly improving disassembly efficiency and saving maintenance time.

[0021] Non-destructive operation: During the separation process, the contact surface between the guide rod and the inner wall of the valve seat is a smooth cylindrical surface, and the force is evenly distributed, which will not cause scratches, deformation or other damage to the valve seat, effectively protecting the integrity of the valve seat and reducing maintenance costs.

[0022] Stable and reliable: The tooling is made of martensitic stainless steel, which has high hardness, good wear resistance and strength. It can maintain stable performance in harsh working environments, has a long service life and high reliability.

[0023] Easy to operate: The tooling structure is simple and easy to operate. Maintenance personnel can disassemble the valve seat simply by rotating the handle. No complicated operating skills or training are required, which improves the convenience and operability of maintenance work.

[0024] Wide range of applications: This tooling is applicable to the disassembly of valve seats of various types of high-pressure regulators, and has wide applicability and versatility, which is of great application value to the civil aviation aircraft parts and accessories maintenance industry. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a special disassembly tooling for a high-voltage regulator according to this utility model;

[0026] Figure 2 This is a schematic diagram of the guide rod structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the screw structure of this utility model.

[0028] In the attached diagram, 1 is the guide rod; 11 is the slit area; 11a is the longitudinal slit; 11b is the flap; 12 is the threaded hole; 2 is the screw; 21 is the ball; and 22 is the handle. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The high-voltage regulator disassembly tool shown includes:

[0031] The tooling body has a guide rod 1, and the front end of the guide rod 1 is provided with a deformable slit area 11;

[0032] The drive assembly includes a screw 2, on which a ball 21 is provided;

[0033] The screw 2 and the guide rod 1 are threaded together. The ball 21 is located on the side of the screw 2 near the front end of the guide rod 1. By rotating the screw 2, the guide rod 1 is extended and retracted. When the guide rod 1 is extended and retracted to the bottom, the ball 21 opens the slotted area 11, so that the guide rod 1 fits against the inner wall of the valve seat, thereby realizing the disassembly of the valve seat.

[0034] In this embodiment, the following is a detailed description of the tooling:

[0035] The core component of the tooling is the guide rod 1, which is the key part of the entire tooling and plays a crucial role in directly contacting the valve seat and realizing the disassembly function.

[0036] The guide rod features a deformable slit area 11 at its front end. This slit area consists of multiple longitudinal slits 11a evenly distributed along the circumference of the guide rod, extending inward from the front end to form multiple outwardly opening lobes 11b. This design allows the lobes to open or close flexibly when the guide rod is under stress, facilitating contact with the inner wall of the valve seat.

[0037] The guide rod's connection structure: A threaded hole 12 is provided at the rear end of the guide rod, and an external thread is provided at the front end of the screw 2. The two cooperate with each other, allowing the screw to extend and retract along the axial direction of the guide rod. At the same time, the guide rod and the screw are coaxially connected, ensuring the stability and accuracy of the tooling during operation and avoiding problems such as uneven force distribution that may be caused by off-axis.

[0038] The drive assembly mainly consists of a screw 2 and a ball 21. Its function is to drive the guide rod to extend and retract by rotating the screw, thereby opening and closing the valve disc and completing the disassembly operation of the valve seat.

[0039] The function of the screw: The screw engages with the threaded portion of the guide rod. When the screw rotates, the threaded transmission causes the guide rod to extend or retract axially. This threaded transmission method has advantages such as good self-locking, high transmission accuracy, and strong load-bearing capacity, ensuring the stability and reliability of the guide rod during extension and retraction.

[0040] The function of the ball: The ball is located on the side of the screw near the front end of the guide rod. Its diameter is larger than that of the screw, and the surface of the ball corresponds to the slotted area at the front end of the guide rod. When the screw rotates and the guide rod extends to the bottom, the ball pushes open the flap 11b in the slotted area, increasing the outer diameter of the front end of the guide rod and allowing it to fit tightly against the inner wall of the valve seat, thus achieving the disassembly of the valve seat. The ingenious design of the ball transforms rotational motion into the opening and closing action of the flaps, making it one of the key components for realizing the tooling repair function.

[0041] In some specific embodiments, the rear end of the guide rod 1 is provided with a threaded hole 12, and the front end of the screw 2 is provided with an external thread. The external thread cooperates with the threaded hole 12, so that the screw 2 can extend and retract along the axial direction of the guide rod 1.

[0042] It should be noted that a threaded hole 12 is provided at the rear end of the guide rod 1, near the tail of the tooling body. Correspondingly, an external thread is provided at the front end of the screw 2. When the front end of the screw 2 is inserted into the threaded hole 12 at the rear end of the guide rod 1, the external thread and the threaded hole 12 mesh together, forming a tight threaded connection. This connection method allows the screw 2 to extend and retract along the axial direction of the guide rod 1. When the screw 2 rotates, the threaded transmission action drives the guide rod 1 to move back and forth relative to the screw 2, providing a crucial mechanical motion basis for realizing the tooling's function of disassembling the valve seat.

[0043] In some specific embodiments, the guide rod 1 and the screw 2 are coaxially connected.

[0044] Guide rod 1 and screw 2 are connected and assembled along the same axis throughout the tooling. That is, the central axis of guide rod 1 and the central axis of screw 2 are completely coincident. This coaxial connection design ensures smooth and accurate relative movement between guide rod 1 and screw 2 during operation, preventing jamming, vibration, or uneven force due to axial misalignment. This ensures the stability and reliability of the entire tooling during valve seat disassembly operations, improving work efficiency and operational accuracy.

[0045] In some specific embodiments, the slit area 11 includes a plurality of longitudinal slits evenly distributed along the circumference of the guide rod 1. The longitudinal slits 11a extend inward from the front end of the guide rod 1 to form a plurality of outwardly opening lobes 11b.

[0046] At the front end of the guide rod 1, a special slit area 11 is designed. This slit area 11 consists of multiple longitudinal slits 11a, which extend inward from the front end of the guide rod 1 and are evenly distributed along the circumference of the guide rod 1. Each longitudinal slit 11a divides the front end of the guide rod 1 into multiple lobes 11b. These lobes 11b are connected to the body of the guide rod 1, but can open outward along the longitudinal slits 11a when subjected to axial thrust from the inside. When the valve seat needs to be disassembled, a specific driving mechanism causes the lobes 11b to open outward, increasing the outer diameter of the front end of the guide rod 1 and tightly fitting it against the inner wall of the valve seat, thereby generating sufficient expansion force to separate the valve seat from the housing. This is one of the key structures for achieving non-destructive disassembly of the valve seat.

[0047] In some specific embodiments, the diameter of the ball 21 is larger than the diameter of the screw 2, and the surface of the ball 21 corresponds to the slotted area 11 at the front end of the guide rod 1, which is used to open the flap 11b.

[0048] A ball 21 is positioned on the side of the screw 2 near the front end of the guide rod 1, at the front end of the screw 2. The diameter of the ball 21 is larger than the diameter of the screw 2, and the surface of the ball 21 corresponds to the slotted area 11 at the front end of the guide rod 1. When the screw 2 rotates and the guide rod 1 extends to its bottom, the ball 21 contacts the slotted area 11 at the front end of the guide rod 1. As the screw 2 further rotates and advances, the ball 21 applies pressure to the slotted area 11, thereby opening the flap 11b. This design of the ball 21 provides a direct and uniform force for the opening of the flap 11b, ensuring that the flap 11b can unfold evenly outward, allowing the guide rod 1 to fit tightly against the inner wall of the valve seat, completing the disassembly action of the valve seat.

[0049] In some specific embodiments, the tooling body also includes a base, which is fixedly connected to the rear end of the guide rod 1. The base is provided with mounting holes for fixing the tooling body on the worktable.

[0050] The main body of the fixture also includes a base, which is located at the rear end of the guide rod 1 and is fixedly connected to the rear end of the guide rod 1. The base has mounting holes, which can be used to stably fix the entire fixture body to the worktable using bolts, screws, or other fasteners. The base provides a stable support platform for the entire fixture, preventing displacement or shaking during valve seat disassembly, ensuring the accuracy and safety of the disassembly process, and also facilitating operation by maintenance personnel, improving work efficiency and ease of operation.

[0051] In some specific embodiments, the drive assembly further includes a handle 22, which is fixedly connected to the end of the screw 2 away from the ball, for rotating the screw 2.

[0052] In addition to the screw 2 and ball 21, the drive assembly also includes a handle 22. The handle 22 is located at the end of the screw 2 furthest from the ball, that is, at the tail end of the screw 2. The handle 22 is fixedly connected to the tail end of the screw 2, maintaining a synchronous rotational connection. By turning the handle 22, maintenance personnel can easily rotate the screw 2, thereby achieving the extension and retraction of the guide rod 1 and the subsequent valve seat disassembly process. The handle 22 significantly improves the convenience and ease of operation, allowing maintenance personnel to more easily control the tooling's movements and complete the valve seat disassembly.

[0053] In some specific embodiments, the handle 22 is provided with anti-slip texture to increase friction during operation and prevent slippage.

[0054] The surface of the handle 22 is designed with anti-slip textures. These textures can be formed on the handle surface through specific processing techniques such as engraving or knurling. When the operator rotates the handle 22, the anti-slip textures increase the friction between the hand and the handle, effectively preventing slippage caused by sweaty, oily hands or excessive force. This design improves the reliability and safety of operation, ensures the smooth progress of the disassembly process, and avoids operational errors or tooling loss of control that may be caused by slippage.

[0055] In some specific embodiments, both the tooling body and the drive assembly are made of martensitic stainless steel.

[0056] The entire tooling body, including the guide rod 1, base, and drive components such as the screw 2, handle 22, and ball 21, is made of martensitic stainless steel. Martensitic stainless steel is a material with high strength, high hardness, and good wear resistance, as well as good corrosion resistance. This material selection allows the tooling to maintain stable performance in harsh working environments such as high pressure, high temperature, and humidity, preventing deformation, wear, or damage and extending its service life. Furthermore, the high strength and high hardness of martensitic stainless steel ensure that the guide rod 1 can withstand significant expansion forces without plastic deformation when tightly fitted against the valve seat inner wall, thus guaranteeing the smooth progress of the disassembly process and the reusability of the tooling.

[0057] In some specific embodiments, the outer surface of the front end of the guide rod 1 is adapted to the inner wall of the valve seat, ensuring that the outer diameter of the front end of the guide rod 1 can fit tightly against the inner wall of the valve seat after the diameter is increased.

[0058] The shape and size of the outer surface of the front end of the guide rod 1 are designed to fit the inner wall of the valve seat. This fit is mainly reflected in the matching of the diameter and contour of the outer surface of the front end of the guide rod 1 with the diameter and contour of the inner wall of the valve seat. When the outer diameter of the front end of the guide rod 1 increases, it can fit tightly against the inner wall of the valve seat, thereby generating uniform expansion force and achieving effective separation of the valve seat from the housing. This design ensures that after the guide rod 1 is extended to the bottom and the ball 21 opens the slotted area 11, the front end of the guide rod 1 can fit evenly and tightly against the inner wall of the valve seat, which can not only guarantee sufficient expansion force, but also avoid scratches, deformation and other damage to the inner wall of the valve seat, effectively protecting the integrity and usability of the valve seat and reducing maintenance costs.

[0059] The working principle of this special disassembly tooling for high-voltage regulators is as follows:

[0060] Initial state: Insert the guide rod 1 of the tooling body into the valve seat. At this time, the flap 11b at the front end of the guide rod is in a naturally closed state, and the guide rod smoothly enters the inner cavity of the valve seat.

[0061] Rotating screw: The operator rotates the handle 22 to drive the screw 2 to rotate. Since the screw 2 and the guide rod 1 are connected by a threaded connection, the rotation of the screw 2 causes the guide rod 1 to begin to extend and retract along its axial direction.

[0062] Lobe opening: As the guide rod 1 extends and retracts towards the bottom, the ball 21 gradually approaches the slotted area 11 at the front end of the guide rod. When the guide rod extends and retracts to the bottom, the ball 21 contacts the slotted area 11, and as the screw 2 further rotates and advances, the ball 21 applies pressure to the slotted area 11, pushing open multiple lobes 11b, thereby increasing the outer diameter of the front end of the guide rod 1.

[0063] Tight Fit and Separation: After the flap 11b opens outward, the outer surface of the front end of the guide rod 1 tightly fits against the inner wall of the valve seat. Continuing to rotate the screw 2, the guide rod 1 extends and retracts further inward under the screw's influence, generating a certain tension force to overcome the adhesion between the valve seat and the housing, thus achieving separation of the valve seat and the housing.

[0064] Throughout the entire process, the tooling converts the rotational motion into axial extension and retraction motion through threaded transmission, and then cleverly converts the axial force into radial expansion force by means of the ball pushing open the valve disc, thereby efficiently completing the disassembly of the valve seat.

[0065] Example

[0066] During maintenance of a high-pressure regulator on a Boeing aircraft, a civil aviation aircraft maintenance workshop needed to disassemble the valve seat. Because the regulator had been operating in a high-temperature environment for a long time, the valve seat was severely adhered to the housing. The maintenance personnel used the aforementioned specialized disassembly tooling for high-pressure regulators.

[0067] Tooling Installation: First, the maintenance personnel fix the base of the tooling body to the workbench with bolts to ensure the tooling remains stable during operation. Then, insert the guide rod 1 into the valve seat, aligning the slit area 11 at the front end of the guide rod with the inner wall of the valve seat.

[0068] Rotating the screw: The maintenance personnel hold handle 22 and begin to rotate the screw 2 clockwise. As the screw rotates, the guide rod 1 gradually extends and retracts towards the bottom under the action of the threaded engagement.

[0069] Lobe opening: When the guide rod 1 is extended to the bottom, the ball 21 opens the slotted area 11, and the multiple lobes 11b at the front end of the guide rod open outwards evenly. The outer diameter of the front end of the guide rod increases and fits tightly against the inner wall of the valve seat.

[0070] Valve seat disassembly: The maintenance personnel continued to rotate screw 2, and guide rod 1 extended and retracted further, generating sufficient tension force to overcome the adhesion force between the valve seat and the housing, and the valve seat was successfully separated from the housing.

[0071] Throughout the disassembly process, the tooling operated stably and was easy to use, successfully achieving non-destructive disassembly of the valve seat, which greatly improved maintenance efficiency and quality.

[0072] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0073] Highly efficient disassembly: Utilizing the threaded engagement of the screw and guide rod, along with the ingenious design of the slit area on the ball top, the guide rod tip can easily fit against the inner wall of the valve seat, thus achieving rapid separation of the valve seat from the housing. This significantly improves disassembly efficiency and saves maintenance time. In practical applications, compared to traditional methods of disassembly using manual hammering or non-specialized tools, this fixture effectively improves the overall progress of maintenance work.

[0074] Non-destructive operation: During the separation process, the contact surface between the guide rod and the inner wall of the valve seat is a smooth cylindrical surface, and the force is evenly distributed, preventing scratches, deformation, or other damage to the valve seat. This effectively protects the integrity of the valve seat and reduces maintenance costs. This avoids the need to replace the entire component due to valve seat damage, saving maintenance companies significant repair costs and replacement parts expenses.

[0075] Stable and reliable: The tooling is made of martensitic stainless steel, which has high hardness, good wear resistance and strength. It can maintain stable performance in harsh working environments, with a long service life and high reliability. Even in high temperature, high pressure and frequent use maintenance environments, the tooling can still maintain stable performance, reducing maintenance delays caused by tooling failure and improving the continuity and stability of maintenance work.

[0076] Easy to operate: The tooling has a simple structure and is easy to operate. Maintenance personnel only need to rotate the handle to disassemble the valve seat, without the need for complicated operating skills and training, which improves the convenience and operability of maintenance work. Newly hired maintenance personnel can master the use of this tooling after a short training period, reducing the requirements for personnel operating skills and making maintenance work more flexible and efficient.

[0077] Wide applicability: This tooling is suitable for disassembling valve seats of various high-pressure regulator models, exhibiting broad applicability and versatility. It has significant application value in the civil aviation aircraft component maintenance industry. It eliminates the need for frequent adjustments or replacement of specialized tools for different high-pressure regulator models, saving maintenance companies tool procurement and management costs and improving the utilization rate of maintenance resources.

[0078] 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 special disassembly tooling for high-voltage regulators, characterized in that, include: The tooling body has a guide rod (1), and the front end of the guide rod (1) is provided with a deformable slit area (11); The drive assembly has a screw (2) on which a ball (21) is provided; The screw (2) is engaged with the threaded portion of the guide rod (1). The ball (21) is located on the side of the screw (2) near the front end of the guide rod (1). By rotating the screw (2), the guide rod (1) is extended and retracted. When the guide rod (1) is extended and retracted to the bottom, the ball (21) pushes open the slotted area (11), so that the guide rod (1) fits against the inner wall of the valve seat, thereby realizing the disassembly of the valve seat.

2. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The guide rod (1) has a threaded hole (12) at its rear end and the screw (2) has an external thread at its front end. The external thread engages with the threaded hole (12) so that the screw (2) can extend and retract along the axial direction of the guide rod (1).

3. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The guide rod (1) is coaxially connected to the screw (2).

4. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The slit area (11) includes a plurality of longitudinal slits evenly distributed along the circumference of the guide rod (1). The longitudinal slits (11a) extend inward from the front end of the guide rod (1) to form a plurality of lobes (11b) that can open outward.

5. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The diameter of the sphere (21) is larger than the diameter of the screw (2), and the surface of the sphere (21) corresponds to the slotted area (11) at the front end of the guide rod (1) to open the flap (11b).

6. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The tooling body also includes a base, which is fixedly connected to the rear end of the guide rod (1). The base is provided with mounting holes for fixing the tooling body on the workbench.

7. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The drive assembly also includes a handle (22), which is fixedly connected to the end of the screw (2) away from the ball, for rotating the screw (2).

8. The special disassembly tooling for high-voltage regulators according to claim 7, characterized in that, The handle (22) is provided with anti-slip texture to increase friction during operation and prevent slipping.

9. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The tooling body and drive components are both made of martensitic stainless steel.

10. The special disassembly tooling for high-voltage regulators according to claim 1, characterized in that, The outer surface of the front end of the guide rod (1) is adapted to the inner wall of the valve seat, ensuring that the outer diameter of the front end of the guide rod (1) can fit tightly against the inner wall of the valve seat after the diameter of the front end increases.

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