Engine digital rotation tool adapter

Abstract

The utility model relates to aviation maintenance technical field especially relates to a kind of engine digital rotation tooling adapter.Tooling adapter includes: base, docking seat, sleeve mechanism and transmission shaft mechanism;Sleeve mechanism one end is communicated with base, other end is communicated with docking seat, and docking seat is used to connect engine;Base is used to connect motor;Transmission shaft mechanism is set in the inside of sleeve mechanism, transmission shaft mechanism one end is inserted into base, other end is inserted into docking seat;Transmission shaft mechanism is used to rotate by motor rotation transmission shaft mechanism, to drive high-pressure rotor in engine rotation.The utility model can realize that tooling does not have to stretch into the high-pressure swing point around structure complex, narrow space area of engine gear box, can connect the high-pressure swing point of engine gear box, and digital rotation tool and adapter cooperate, can make rotational speed keep constant, not only improve hole detection quality, but also can reduce the situation that hole detector is missed or misjudged due to unstable rotational speed.

Description

Technical Field

[0001] This utility model relates to the field of aviation maintenance technology, and in particular to an engine digital rotation tooling adapter. Background Technology

[0002] In the domestic aviation maintenance field, while the traditional manual hand-cranked braking method is widely used for inspecting the high-pressure rotor of engines during borehole testing, its limitations are becoming increasingly apparent. It is not only labor-intensive and consumes significant manpower, but also struggles to precisely control the N2 rotor's speed, leading to a substantial reduction in stability and accuracy during the borehole testing process, thus affecting the overall quality of the borehole test. More seriously, communication delays or misunderstandings between borehole testers and manual crank operators can easily lead to operational errors, causing unpredictable damage to the precision borehole testing instruments, increasing maintenance costs and safety risks. In engine overhauls covering the RB211, PW4000, and PW1100 engine models, the area around the high-pressure cranking point of the engine gearbox has a complex structure and limited space, making it difficult to connect manually cranked fixtures to the high-pressure cranking point of the engine gearbox. Therefore, for these three engine models, based on the existing ENERPAC digital rotation tool, an engine digital rotation fixture adapter is proposed. Utility Model Content

[0003] This invention proposes a digital rotating tooling adapter for engines to solve the problem that the high-pressure cranking point of an engine gearbox has a complex structure and limited space, making it difficult to connect the high-pressure cranking point of the engine gearbox using manual tools.

[0004] According to the present invention, an engine digital rotation tooling adapter is provided, comprising: a base, a docking seat, a sleeve mechanism, and a transmission shaft mechanism;

[0005] One end of the sleeve mechanism is connected to the base, and the other end is connected to the docking seat, which is used to connect the engine;

[0006] The base is used to connect the digital rotation tool;

[0007] The drive shaft mechanism is located inside the sleeve mechanism, with one end of the drive shaft mechanism extending into the base and the other end extending into the docking seat;

[0008] The drive shaft mechanism is used to drive the high-pressure rotor inside the engine to rotate by the rotation of the motor of the digital rotary tool.

[0009] Preferably, the base has protruding feet at both ends, and a first screw hole is provided at the protruding feet;

[0010] A first through hole is provided at the center of the base, and the first through hole corresponds to the transmission shaft mechanism.

[0011] Preferably, the sleeve mechanism includes: an elbow and a fixed base;

[0012] One end of the elbow is connected to the docking seat, and the other end is connected to the base for fixation;

[0013] The base is fixedly connected to the base;

[0014] The docking seat is a tubular structure with an elbow connected to one end and a fan-shaped protrusion structure at the other end. The fan-shaped protrusion is evenly provided with several second screw holes.

[0015] The transmission shaft mechanism is installed inside the channel formed by the elbow, base fixation and docking seat.

[0016] Preferably, the transmission shaft mechanism includes: a bevel gear and a rotating shaft;

[0017] There are two bevel gears, which are placed perpendicular to each other inside the bend. The two bevel gears are respectively connected to two rotating shafts, and the other ends of the two rotating shafts are located at the first screw hole and inside the mating seat, respectively.

[0018] Preferably, the sleeve mechanism includes: a sleeve;

[0019] The sleeve is a cylindrical structure with a pre-defined angle cut at the top and a semi-circular notch on the side wall;

[0020] The docking seat has a rounded rhomboid structure with third screw holes at both ends and a second through hole at the center of the docking seat, which corresponds to the transmission shaft mechanism.

[0021] A drive shaft mechanism is installed inside the sleeve.

[0022] Preferably, the drive shaft mechanism includes: a square joint, a hexagonal joint, and a ball joint;

[0023] The hexagonal connector has a hexagonal interface at the top and a cavity at the bottom. The hexagonal interface passes through the second through hole and is located above the mating seat.

[0024] An opening is provided on the lower part of the side wall of the hexagonal connector, and a connecting rod is provided inside the cavity of the hexagonal connector. The connecting rod is fixed in the cavity through the opening.

[0025] The top of the cue stick is a spherical structure, and the spherical structure has a third through hole, through which the connecting rod passes;

[0026] The bottom of the cue stick is connected to a square connector, and the bottom of the square connector has a quadrilateral interface.

[0027] Preferably, the adapter is made of a high-strength, corrosion-resistant alloy material.

[0028] This utility model has at least the following beneficial effects:

[0029] This invention proposes a digital rotation tooling adapter for an engine. Through the design of the base, docking seat, sleeve mechanism, and transmission shaft mechanism, the digital rotation tool can be precisely connected to the high-pressure rocking point of the engine gearbox. A controller drives the motor, which in turn rotates the transmission shaft mechanism, causing the high-pressure section blades to rotate at a constant speed. The digital rotation tool and adapter maintain a constant rotation speed, improving borehole inspection quality and reducing the likelihood of borehole operators missing or misjudging points due to unstable rotation speed. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the technical solutions of the present invention.

[0031] Figure 1 A schematic diagram of the structure of an engine digital rotary tooling adapter for adapting to PW4000 and PW1100 engines;

[0032] Figure 2 A cross-sectional view of this utility model adapted to PW4000 and PW1100 engines;

[0033] Figure 3 A schematic diagram of the transmission shaft mechanism in this utility model, adapted to PW4000 and PW1100 engines;

[0034] Figure 4 A schematic diagram of the structure of a digital rotating tooling adapter for an RB211 engine, according to this utility model;

[0035] Figure 5 Side view of this utility model adapted to the RB211 engine;

[0036] In the diagram, 1-sleeve, 2-connecting seat, 3-base, 4-square connector, 5-hexagonal connector, 6-elbow, 7-base fixing. Detailed Implementation

[0037] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0038] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0039] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0040] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this utility model.

[0041] Figure 1 A schematic diagram of the structure of an engine digital rotary tooling adapter for adapting to PW4000 and PW1100 engines; Figure 2 A cross-sectional view of this utility model adapted to PW4000 and PW1100 engines; Figure 3 A schematic diagram of the transmission shaft mechanism in this utility model, adapted to PW4000 and PW1100 engines; Figure 4 A schematic diagram of the structure of a digital rotating tooling adapter for an RB211 engine, according to this utility model; Figure 5 Side view of this utility model adapted to the RB211 engine; as shown Figure 1-5 As shown, an engine digital rotary tooling adapter includes: a base 3, a docking seat 2, a sleeve mechanism, and a transmission shaft mechanism;

[0042] One end of the sleeve mechanism is connected to the base, and the other end is connected to the docking seat 2, which is used to connect the engine;

[0043] The base 3 is used to connect the digital rotation tool;

[0044] The drive shaft mechanism is located inside the sleeve mechanism, with one end of the drive shaft mechanism extending into the base 3 and the other end extending into the docking seat 2;

[0045] The drive shaft mechanism is used to drive the high-pressure rotor inside the engine to rotate by the rotation of the motor of the digital rotary tool.

[0046] In this embodiment of the utility model, during the borehole inspection, the base 3 is connected to the motor, and the docking seat 2 is connected to the high-pressure rocker of the engine gearbox; the motor is started by the controller, so that the motor drives the transmission shaft mechanism in the sleeve mechanism, thereby driving the high-pressure rotor in the engine to rotate, and the rotation status of the high-pressure rotor in the engine is monitored by the digital rotation tool.

[0047] The motor output torque is transmitted to the high-pressure jack of the engine gearbox through the transmission shaft mechanism, thus realizing torque transmission.

[0048] The structure of the engine's high-pressure contact point and the surrounding complex accessories and piping layout are addressed by employing a connection method using base 3, docking seat 2, and sleeve mechanism. This effectively avoids obstructions and fully considers the ease of operation for technicians during installation.

[0049] In this utility model, the base 3 has protruding feet at both ends, and a first screw hole is provided at the protruding feet;

[0050] The base 3 has a first through hole at its center, which corresponds to the transmission shaft mechanism.

[0051] In this embodiment of the utility model, the base 3 has a rounded rectangular structure with protruding feet at both ends; four screw holes are evenly distributed around the first through hole, and the base 3 is connected to the sleeve mechanism through the four screw holes.

[0052] The motor shaft and the transmission shaft mechanism are connected at the first through hole, and the protruding foot is fixed to the generator through the first screw hole, so that the connection between the motor shaft and the transmission shaft mechanism is stable; this ensures the accuracy of the inspection data, prevents the motor from falling off during operation, and ensures the safety of the device.

[0053] In this utility model, the sleeve mechanism includes: an elbow 6 and a base fixing 7;

[0054] One end of the elbow is connected to the docking seat 2, and the other end is connected to the base for fixation;

[0055] The base is fixedly connected to the base 3;

[0056] The docking seat 2 is a tubular structure, with one end connected to the elbow 6 and the other end having a fan-shaped protrusion structure. The fan-shaped protrusion is evenly provided with several second screw holes.

[0057] The channel formed by the elbow 6, the base fixing 7, and the docking seat 2 is equipped with a transmission shaft mechanism.

[0058] In the embodiments of this utility model, such as Figure 4 , 5 As shown, the sleeve mechanism of the tooling adapter for the RB211 engine consists of a 90° elbow and a base fixing 7.

[0059] The docking seat is a tubular structure. One end of the docking seat that connects to the high-pressure rocker of the engine has a fan-shaped protrusion. Four second screw holes are evenly distributed on the fan-shaped protrusion. The second screw holes are used to connect to the high-pressure rocker of the engine gearbox.

[0060] The elbow 6, the base fixing 7, and the docking seat 2 are connected and fixed by four full-threaded screws. The full-threaded screws can be removed to adjust the direction of the elbow in order to avoid obstacles near the engine gearbox.

[0061] In this invention, the transmission shaft mechanism includes: a bevel gear and a rotating shaft;

[0062] There are two bevel gears, which are placed perpendicular to each other inside the bend 6. The two bevel gears are respectively connected to two rotating shafts, and the other ends of the two rotating shafts are located at the first screw hole and inside the docking seat 2, respectively.

[0063] In the embodiments of this utility model, such as Figure 5 As shown, the two bevel gears are located within a 90° bend, perpendicular to each other, and interlock to achieve a 90° torque transmission effect. The motor transmits the torque to the shaft at the first screw hole, which then transmits the torque through the two bevel gears to the shaft located within the docking seat 2, and finally through the shaft within the docking seat 2 to the high-pressure rocker of the engine gearbox.

[0064] The area around the N2 pivot point of the RB211 motor is small, and traditional linear installation cannot accommodate the stepper motor. Therefore, a bevel gear transmission method is adopted, which makes the adapter bend 90 degrees. This not only facilitates the precise installation and positioning of the adapter, but also provides ample space for the stepper motor, effectively avoiding operational problems caused by space limitations.

[0065] In this utility model, the sleeve mechanism includes: sleeve 1;

[0066] The sleeve 1 is a cylindrical structure with a predetermined angle cut at the top and a semi-circular notch on the side wall;

[0067] The docking seat 2 has a rounded rhomboid structure with third screw holes at both ends and a second through hole at the center of the docking seat, which corresponds to the transmission shaft mechanism.

[0068] A transmission shaft mechanism is installed inside the sleeve 1.

[0069] In the embodiments of this utility model, such as Figure 1 As shown, the sleeve mechanism of the tooling adapter adapted to PW4000 and PW1100 engines is sleeve 1; the drive shaft mechanism adopts a universal joint configuration.

[0070] The top of sleeve 1 has a 30° cut to the horizontal direction, ensuring smooth operation under different working conditions. The semi-circular notch on the side wall of sleeve 1 provides operating space for workers during adapter installation, facilitating the installation or removal of the adapter.

[0071] The docking seat 2 is connected to the high-pressure rocker of the engine gearbox through the third screw hole.

[0072] In this utility model, the transmission shaft mechanism includes: a square connector 4, a hexagonal connector 5, and a ball rod;

[0073] The hexagonal connector 5 has a hexagonal interface at the top and a cavity at the bottom. The hexagonal interface passes through the second through hole and is located above the docking seat 2.

[0074] An opening is provided on the lower part of the side wall of the hexagonal connector, and a connecting rod is provided inside the cavity of the hexagonal connector. The connecting rod is fixed in the cavity through the opening.

[0075] The top of the cue stick is a spherical structure, and the spherical structure has a third through hole, through which the connecting rod passes;

[0076] The bottom of the cue stick is connected to a square connector 4, and the bottom of the square connector has a quadrilateral interface.

[0077] In the embodiments of this utility model, such as Figure 2 , 3 As shown, the hexagonal interface at the top of the hexagonal connector 5 corresponds to the high-pressure rocker structure of the gearboxes of the PW1100 and PW4000 engines;

[0078] The spherical structure at the top of the cue stick is fixed in the inner cavity at the bottom of the hexagonal connector through the third through hole, the connecting rod, and the opening at the bottom of the hexagonal connector side wall; through the third through hole and the connecting rod, the hexagonal connector 5 can rotate along the surface of the spherical structure, which not only greatly improves the flexibility of the bearing, but also ensures the smooth operation of the adapter under different working conditions.

[0079] The quadrilateral interface at the bottom of the square connector corresponds to the motor interface.

[0080] For the PW1100 and PW4000 engines, the electric rotary tooling adapter design fully considers the structure of the gearbox's 6-point N2 pivot point and the complex layout of surrounding accessories and piping. The external structural design avoids obstructions and prioritizes ease of operation for technicians during installation. The adapter's coupling adopts a universal joint design; the built-in ball joint structure not only significantly improves shaft flexibility, ensuring smooth operation under various working conditions, but also effectively prevents wear and jamming issues during long-term use, extending the equipment's service life.

[0081] In this invention, the adapter is made of a high-strength, corrosion-resistant alloy material.

[0082] In this embodiment of the invention, the high-strength, corrosion-resistant alloy materials are 7075-T6 aluminum alloy and 40Cr steel to withstand the various environments of aviation maintenance. These materials not only possess excellent mechanical properties but also maintain stable performance under harsh conditions. Precision machining processes are employed during manufacturing to ensure that the accuracy and quality of each component meet standards, guaranteeing the stability and reliability of the adapter during connection.

[0083] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An engine digital rotary tooling adapter, characterized in that, include: Base (3), docking seat (2), sleeve mechanism and drive shaft mechanism; One end of the sleeve mechanism is connected to the base, and the other end is connected to the docking seat (2). The docking seat (2) is used to connect the engine. The base (3) is used to connect the digital rotation tool; The drive shaft mechanism is located inside the sleeve mechanism. One end of the drive shaft mechanism extends into the base (3), and the other end extends into the docking seat (2). The drive shaft mechanism is used to drive the high-pressure rotor inside the engine to rotate by the rotation of the motor of the digital rotary tool.

2. The engine digital rotary tooling adapter according to claim 1, characterized in that: The base (3) has protruding feet at both ends, and a first screw hole is provided at the protruding feet; The base (3) has a first through hole at its center, which corresponds to the transmission shaft mechanism.

3. The engine digital rotary tooling adapter according to claim 1, characterized in that: The sleeve mechanism includes: elbow (6) and base fixing (7); One end of the elbow is connected to the docking seat (2), and the other end is connected to the base for fixation; The base is fixedly connected to the base (3); The docking seat (2) is a tubular structure, with one end connected to the elbow (6) and the other end having a fan-shaped protrusion structure, and the fan-shaped protrusion is evenly provided with several second screw holes; The transmission shaft mechanism is installed inside the channel formed by the elbow (6), the base fixation (7), and the docking seat (2).

4. The engine digital rotary tooling adapter according to claim 3, characterized in that: The transmission shaft mechanism includes: a bevel gear and a rotating shaft; There are two bevel gears, which are placed perpendicular to each other inside the bend (6). The two bevel gears are respectively connected to two rotating shafts, and the other ends of the two rotating shafts are located at the first screw hole and inside the docking seat (2).

5. The engine digital rotary tooling adapter according to claim 1, characterized in that: The sleeve mechanism includes: a sleeve (1); The sleeve (1) is a cylindrical structure with a pre-defined angle cut at the top and a semi-circular notch on the side wall; The docking seat (2) has a rounded rhomboid structure with third screw holes at both ends and a second through hole at the center of the docking seat (2), which corresponds to the transmission shaft mechanism; A transmission shaft mechanism is provided inside the sleeve (1).

6. The engine digital rotary tooling adapter according to claim 5, characterized in that: The drive shaft mechanism includes: a square joint (4), a hexagonal joint (5), and a ball stick; The hexagonal connector (5) has a hexagonal interface at the top and a cavity at the bottom. The hexagonal interface passes through the second through hole and is located above the docking seat (2). The hexagonal connector (5) has an opening at the lower part of its side wall, and a connecting rod is provided inside the cavity of the hexagonal connector (5). The connecting rod is fixed in the cavity through the opening. The top of the cue stick is a spherical structure, and the spherical structure has a third through hole, through which the connecting rod passes; The bottom of the cue stick is connected to a square connector (4), and the bottom of the square connector has a quadrilateral interface.

7. The engine digital rotary tooling adapter according to claim 1, characterized in that: The adapter is made of high-strength, corrosion-resistant alloy material.

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