A positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve.

Abstract

This utility model discloses a positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve. It includes a positioning base, a sliding connecting seat, and a positioning rod. The bottom surface of the positioning base has a circular positioning block for engaging with a recessed stop in the valve housing and a locking rod for engaging with a positioning hole in the valve housing. The positioning base has a through hole for engaging with a threaded connection hole in the valve housing. The sliding connecting seat is fixedly connected to the front of the positioning base, and the positioning rod is slidably connected to the sliding connecting seat and can be locked onto the sliding connecting seat. One end of the positioning rod is a mounting hole fixing end for fixing a mounting hole seat. When the positioning device is fixed to the valve housing, the mounting hole fixing end will be positioned corresponding to the side of the mounting hole in the valve housing. This utility model can position the relative position between the mounting hole seat and the valve housing, thereby ensuring the smooth progress of subsequent welding and installation work.

Description

Technical Field

[0001] This utility model relates to the field of aircraft high-pressure turbine clearance control valve repair technology, specifically to a positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve. Background Technology

[0002] like Figure 4 The diagram shows the valve housing 11 of the high-pressure turbine clearance control valve on a B737 aircraft. Its shape is relatively complex, with a surface that is essentially an irregular plane. The valve housing 11 has a receiving cavity 11.1, with a recessed stop 11.5 at its front end. Threaded connection holes 11.3 are provided on both the upper and lower sides of the receiving cavity 11.1, and a positioning hole 11.2 is provided on one side of the receiving cavity 11.1. A connecting lug extends from the end of the valve housing 11 away from the receiving cavity 11.1, and a mounting hole 11.4 is provided on the connecting lug. A mounting seat is welded onto the mounting hole 11.4. Figure 4 The valve housing 11 shown is not yet fitted with a mounting hole seat.

[0003] However, during the use of the B737 aircraft, the mounting holes on the aforementioned valve housings are prone to cracking or even detachment due to vibration and other factors. During maintenance, workshop workers need to use argon arc welding to repair the mounting holes. Before welding, the mounting holes must be precisely positioned and fixed.

[0004] Currently, workshop workers can only use various shaped pads and pressure blocks to support and tighten the mounting holes, manually assisting in positioning. However, due to the complex shape and irregular surface of the valve body, problems such as unstable clamping, inaccurate positioning, and failure to fix the mounting holes are easily caused. If the welding alignment is inaccurate, the dimensions of the repaired valve body will be inaccurate, leading to the inability to install and use it. Therefore, it is necessary to design and manufacture a special positioning device specifically for welding requirements. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device for repairing the housing of a high-pressure turbine clearance control valve in an aircraft, which can position the relative position between the mounting hole seat and the valve housing.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A positioning device for repairing the housing of a high-pressure turbine clearance control valve in an aircraft is characterized by comprising a positioning base, a sliding connecting seat, and a positioning rod. The bottom surface of the positioning base is provided with a circular positioning block for engaging with a recessed stop in the valve housing and a locking rod for engaging with a positioning hole in the valve housing. The positioning base is provided with a through hole for engaging with a threaded connection hole in the valve housing. The sliding connecting seat is fixedly connected to the front of the positioning base. The positioning rod is slidably connected to the sliding connecting seat and can be locked onto the sliding connecting seat. One end of the positioning rod is a mounting hole seat fixing end for fixing a mounting hole seat. When the positioning device is fixed on the valve housing, the mounting hole seat fixing end will be located on the side where the mounting hole of the valve housing is located.

[0008] A further technical solution of this utility model is as follows: the sliding connecting seat is provided with an elongated sliding hole, the positioning rod passes through the sliding hole, the positioning rod is provided with a sliding sleeve, the two sides of the sliding sleeve are flat, the sliding sleeve is fitted in the sliding hole, the two sides of the sliding sleeve are in contact with the inner side of the sliding hole, the sliding sleeve can slide along the sliding hole, the sliding sleeve is provided with a threaded locking hole, the side of the sliding hole is provided with a waist hole, the sliding connecting seat is provided with a connecting bolt, the connecting bolt passes through the waist hole and is connected to the threaded locking hole.

[0009] A further technical solution of this utility model is as follows: the sliding connecting seat is a square column, the positioning base is a flat plate, the sliding connecting seat and the positioning base are fixed perpendicularly, the length direction of the sliding hole is the length direction of the sliding connecting seat, and the positioning rod is perpendicular to the sliding connecting seat.

[0010] A further technical solution of this utility model is as follows: one end of the positioning base is a triangular end, a circular positioning block is provided on the bottom surface of the triangular end, and a through hole and a locking rod are respectively provided on the corners of the triangular end.

[0011] A further technical solution of this utility model is as follows: the positioning device is provided with a locking screw for fixing the mounting hole seat on the fixed end of the mounting hole seat, the fixed end of the mounting hole seat is provided with an end threaded hole, and the locking screw is connected to the end threaded hole.

[0012] A further technical solution of this utility model is: the locking screw is provided with a cylindrical head, and the mounting hole seat is restricted between the cylindrical head and the fixed end of the mounting hole seat during use.

[0013] A further technical solution of this utility model is as follows: the positioning device is provided with a mounting hole seat positioning plate, the mounting hole seat positioning plate is fixed on the sliding connecting seat through a connecting plate, and the mounting hole seat positioning plate is provided with a bayonet corresponding to the mounting hole seat, the bayonet being located at the fixed end of the mounting hole seat.

[0014] A further technical solution of this utility model is that the front end of the locking rod is in the shape of a frustum.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention uses a circular positioning block and a locking rod to cooperate with the recessed stop and positioning hole of the valve housing. By utilizing the original recessed stop and positioning hole on the valve housing, the positioning device is accurately positioned on the valve housing. Then, by sliding and adjusting the positioning rod, the mounting hole seat fixed at the fixed end of the mounting hole seat can be positioned in the accurate position, thereby ensuring that subsequent welding and installation work can proceed smoothly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the positioning device according to an embodiment of the present utility model;

[0018] Figure 2 This is a front view schematic diagram of the positioning device according to an embodiment of the present utility model;

[0019] Figure 3 This is a side view schematic diagram of the positioning device according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the valve housing of the high-pressure turbine clearance control valve on a B737 aircraft.

[0021] Meaning of the labels in the attached diagram:

[0022] 1-Positioning base; 1.1-Through hole; 1.2-Triangular end; 2-Circular positioning block; 3-Locking rod; 4-Sliding connecting seat; 4.1-Waist hole; 4.2-Sliding hole; 5-Positioning rod; 5.1-Fixing end of mounting hole seat; 6-Connecting plate; 7-Positioning hole seat positioning plate; 7.1-Bayonet; 8-Locking screw; 8.1-Cylindrical head; 9-Sliding sleeve; 9.1-Flat surface; 9.2-Threaded locking hole; 10-Fixing bolt; 11-Gate housing; 11.1-Receiving cavity; 11.2-Positioning hole; 11.3-Threaded connection hole; 11.4-Mounting hole; 11.5-Recessed stop. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Example:

[0028] like Figures 1 to 3 The image shows a positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve, which includes a positioning base 1, a sliding connecting seat 4, a positioning rod 5, a locking screw 8, and a mounting hole seat positioning plate 7.

[0029] In this embodiment, the positioning base 1 is a flat plate, generally arrow-shaped, with one end being a triangular end 1.2. A circular positioning block 2 is provided on the bottom surface of the triangular end 1.2 for engaging with the recessed stop 11.5 of the valve housing 11. The diameter of the circular positioning block 2 matches the inner diameter of the recessed stop 11.5. At the corner of the triangular end 1.2 away from the positioning base 1, a locking rod 3 is provided for engaging with the positioning hole 11.2 of the valve housing 11. The outer diameter of the locking rod 3 matches the diameter of the positioning hole 11.2. The front end of the locking rod 3 is frustum-shaped, making it easier to insert the locking rod 3 into the positioning hole 11.2. At the other two corners of the triangular end 1.2, through holes 1.1 are provided for engaging with the threaded connection holes 11.3 of the valve housing 11.

[0030] In this embodiment, the sliding connecting seat 4 is a square column, one end of which is attached to the front of the positioning base 1 and fixedly connected to the positioning base 1 by fixing bolts 10. The sliding connecting seat 4 is perpendicular to the positioning base 1, but when viewed from the front (e.g.) Figure 2(As shown) The sliding connecting seat 4 is rotated to a set angle according to the shape of the valve housing 11. An elongated sliding hole 4.2 is provided on the sliding connecting seat 4, the length direction of which is the same as the length direction of the sliding connecting seat 4. When the positioning device is fixed on the valve housing 11, the sliding hole 4.2 will face the mounting hole 11.4 of the valve housing 11. The positioning rod 5 passes through the sliding hole 4.2, and a sliding sleeve 9 is provided on the positioning rod 5. The two sides of the sliding sleeve 9 are flat surfaces 9.1. The sliding sleeve 9 fits into the sliding hole 4.2, and the two flat surfaces 9.1 of the sliding sleeve 9 are in contact with the inner surface of the sliding hole 4.2, so that the positioning rod 5 will not rotate arbitrarily, and the sliding sleeve 9 can slide along the sliding hole 4.2. A threaded locking hole 9.2 is provided on the upper part of the sliding sleeve 9, and a waist hole 4.1 is provided on the side of the sliding hole 4.2. A connecting bolt is provided on the sliding connecting seat 4. Figures 1 to 3 (The connecting bolt is not shown). The connecting bolt passes through the waist hole 4.1 and connects with the threaded locking hole 9.2. By tightening the connecting bolt, the positioning rod 5 can be locked on the sliding connecting seat 4.

[0031] One end of the positioning rod 5 is a mounting hole fixing end 5.1 for fixing the mounting hole seat. When the positioning device is fixed on the valve housing 11, the mounting hole fixing end 5.1 will be located on the side where the mounting hole 11.4 is located on the valve housing 11. In this embodiment, the mounting hole fixing end 5.1 is provided with an end threaded hole, and the locking screw 8 is connected to the end threaded hole. The locking screw 8 is provided with a cylindrical head 8.1. When fixing the mounting hole seat, the locking screw 8 is passed through the mounting hole seat, then threaded into the end threaded hole, and tightened, so that the mounting hole seat is clamped between the cylindrical head 8.1 and the mounting hole fixing end 5.1.

[0032] In this embodiment, a connecting plate 6 is fixedly provided on the mounting hole seat positioning plate 7. The connecting plate 6 is perpendicular to the mounting hole seat positioning plate 7. The end of the connecting plate 6 away from the mounting hole seat positioning plate 7 is fixedly connected to the end of the sliding connecting seat 4 away from the positioning base 1 by bolts. The connecting plate 6 is perpendicular to the sliding connecting seat 4. The mounting hole seat positioning plate 7 is provided with a bayonet 7.1 corresponding to the mounting hole seat. The bayonet 7.1 is located at the fixed end 5.1 of the mounting hole seat.

[0033] The usage process of the positioning device in this embodiment is as follows:

[0034] 1. Place the positioning base 1 against the end of the receiving cavity 11.1 of the valve housing 11 and adjust its position so that the circular positioning block 2 is embedded in the recessed stop 11.5 of the receiving cavity 11.1 of the valve housing 11, while the locking rod 3 is inserted into the positioning hole 11.2 of the valve housing 11. At this time, the through hole 1.1 on the positioning base 1 will be aligned with the threaded connection hole 11.3 of the valve housing 11. Then, use a bolt to pass through the through hole 1.1 and connect it to the threaded connection hole 11.3. After tightening, the positioning base 1 and the valve housing 11 are fixed together. The positioning base 1 is accurately fixed to the valve housing 11 by means of the original recessed stop 11.5 and positioning hole 11.2 on the valve housing 11.

[0035] 2. Pass the positioning rod 5 through the sliding hole 4.2, and make the sliding sleeve 9 correspondingly located in the sliding hole 4.2;

[0036] 3. Place the mounting hole seat on the bayonet 7.1 of the mounting hole seat positioning plate 7, adjust the position of the positioning rod 5 so that the mounting hole seat fixing end 5.1 is aligned with the mounting hole seat, then pass the locking screw 8 through the mounting hole seat and connect it to the end threaded hole of the mounting hole seat fixing end 5.1, and tighten it. The mounting hole seat will be fixed on the positioning rod 5.

[0037] 4. Pass the connecting bolt through the side waist hole 4.1 of the sliding hole 4.2, then connect it to the threaded locking hole 9.2 and tighten it to lock the positioning rod 5 on the sliding connecting seat 4. Finally, the positioning of the mounting hole seat on the valve housing 11 is completed.

[0038] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve, characterized in that: The device includes a positioning base, a sliding connecting seat, and a positioning rod. The bottom surface of the positioning base is provided with a circular positioning block for fitting into a recessed stop in the valve housing and a locking rod for fitting into a positioning hole in the valve housing. The positioning base is provided with a through hole for fitting into a threaded connection hole in the valve housing. The sliding connecting seat is fixedly connected to the front of the positioning base. The positioning rod is slidably connected to the sliding connecting seat and can be locked to the sliding connecting seat. One end of the positioning rod is a mounting hole seat fixing end for fixing a mounting hole seat. When the positioning device is fixed on the valve housing, the mounting hole seat fixing end will be located on the side where the mounting hole of the valve housing is located.

2. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 1, characterized in that: The sliding connecting seat has an elongated sliding hole, through which the positioning rod passes. The positioning rod has a sliding sleeve with two flat sides. The sliding sleeve fits into the sliding hole, with the two flat sides of the sliding sleeve fitting against the inner side of the sliding hole. The sliding sleeve can slide along the sliding hole. The sliding sleeve has a threaded locking hole, and the side of the sliding hole has a waist hole. The sliding connecting seat has a connecting bolt, which passes through the waist hole and connects to the threaded locking hole.

3. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 2, characterized in that: The sliding connecting seat is a square column, the positioning base is a flat plate, the sliding connecting seat is fixed perpendicularly to the positioning base, the length direction of the sliding hole is the length direction of the sliding connecting seat, and the positioning rod is perpendicular to the sliding connecting seat.

4. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 3, characterized in that: One end of the positioning base is a triangular end, the circular positioning block is located on the bottom surface of the triangular end, and the through hole and locking rod are respectively located at the corners of the triangular end.

5. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 1, characterized in that: The positioning device is provided with a locking screw for fixing the mounting hole seat to the fixed end of the mounting hole seat. The fixed end of the mounting hole seat is provided with an end threaded hole, and the locking screw is connected to the end threaded hole.

6. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 5, characterized in that: The locking screw has a cylindrical head, and in use, the mounting hole seat is restricted between the cylindrical head and the fixed end of the mounting hole seat.

7. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 1, characterized in that: The positioning device is provided with a mounting hole seat positioning plate, which is fixed on the sliding connecting seat by a connecting plate. The mounting hole seat positioning plate is provided with a bayonet corresponding to the mounting hole seat, and the bayonet is located at the fixed end of the mounting hole seat.

8. The positioning device for repairing the housing of an aircraft high-pressure turbine clearance control valve according to claim 1, characterized in that: The front end of the locking rod is shaped like a frustum.

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