Heat treatment tool for aero-engine parts

By introducing a motor-driven bevel gear linkage assembly and a limit rod design into the heat treatment tooling for aero-engine parts, the problem of uneven heat treatment of blades was solved, enabling all-round heat treatment and convenient blade operation.

CN223837482UActive Publication Date: 2026-01-27CHENGDU XIPENG AVIATION MACHINERY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520059487.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-27
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing heat treatment fixtures for aero-engine blades cannot achieve all-round heat treatment, resulting in low heat treatment efficiency.

Method used

A linkage assembly comprising a first motor, a drive shaft, a first bevel gear, and a second bevel gear was designed. The motor drives the drive shaft to rotate the bevel gears, thereby causing the rotating shaft and mounting post to rotate, achieving omnidirectional rotation of the blades. At the same time, the design of the limit rod, spring, and lever simplifies the installation and disassembly process of the blades.

Benefits of technology

This technology enables comprehensive heat treatment of the blades, improves heat treatment efficiency, and simplifies the installation and disassembly of the blades.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an aero-engine part heat treatment tool, which relates to the technical field of part heat treatment and comprises a bottom plate, a rotating seat is rotatably arranged on the upper end face of the bottom plate, first vertical frames are fixedly mounted at three end parts of the upper end face of the rotating seat, and three second vertical frames are fixedly mounted in the middle of the upper end face of the rotating seat. The second vertical frame corresponds to the first vertical frame, rotating shafts are rotatably mounted on the upper and lower sides of the opposite surfaces of the first vertical frame and the second vertical frame in a limiting manner, mounting columns are fixedly arranged on the rotating shafts, and blades are mounted on the outer sides of the mounting columns in a limiting manner; a top cover is fixedly mounted at the top ends of the three second vertical frames, and a first motor, a transmission shaft, a first bevel gear and a second bevel gear are arranged; the first bevel gear rotates to drive the second bevel gear to synchronously rotate, the second bevel gear rotates to drive the rotating shaft to rotate, and the rotating shaft rotates to drive the mounting column to rotate, so that the blade rotates around the axis of the rotating shaft, blade heat treatment is more uniform, and the blade heat treatment efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for parts, and in particular to a heat treatment fixture for aero-engine parts. Background Technology

[0002] As is well known, the working environment of aero engines is very special, and engine blades are under high temperature and high pressure conditions for a long time. Therefore, after a period of use, cracks, wear and corrosion are likely to occur, causing the engine blades to become unusable. In order to avoid the economic losses caused by direct scrapping, the user usually has to repair the engine blades.

[0003] A heat treatment fixture for aero-engine parts disclosed in Chinese patent CN220149612U includes a fixture body, an mounting structure mounted on the outer wall of the fixture body, and blades mounted on the outer side of the mounting structure. A first bearing is mounted on the bottom of the fixture body, and a base plate is mounted on the bottom of the first bearing. First mounting screws are mounted at the four corners of the base plate, and a support plate is provided at the bottom of the base plate. A limit block is provided at the bottom of the support plate, and a wheel is mounted on the right side of the outer wall of the limit block. A first limit plate is provided on the outer side of the wheel, and a sleeve block is provided on the left side of the outer wall of the limit block.

[0004] The aforementioned existing heat treatment fixture requires the aircraft generator blade to be placed at the end of the mounting structure. The third limiting plate is then rotated upwards to a vertical position via a rotating shaft, thus limiting the aircraft generator blade. During heat treatment, the blade can rotate above the base plate via the action of the first bearing, allowing for comprehensive heat treatment. However, the blade cannot be rotated after being installed on the mounting structure, forcing the heat treatment equipment to primarily treat one side, resulting in low heat treatment efficiency.

[0005] To address the aforementioned problems, this utility model proposes a heat treatment fixture for aero-engine parts. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a heat treatment fixture for aero-engine parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment fixture for aero-engine parts, comprising a base plate, a rotating seat rotatably mounted on the upper end face of the base plate, first uprights fixedly mounted on the three ends of the upper end face of the rotating seat, three second uprights fixedly mounted on the middle position of the upper end face of the rotating seat, the second uprights corresponding to the first uprights, and rotating shafts rotatably mounted on the upper and lower sides of the opposing surfaces of the first and second uprights, mounting columns fixedly mounted on the rotating shafts, and blades fixedly mounted on the outer side of the mounting columns; top covers fixedly mounted on the tops of the three second uprights.

[0008] The present invention is further configured such that a first motor is fixedly installed on the upper surface of the rotating seat between the three second uprights, a transmission shaft is fixedly installed on the output end of the first motor, the other end of the transmission shaft is rotatably connected to the top cover, and a linkage component is provided between the transmission shaft and the rotating shaft.

[0009] The present invention is further configured such that the linkage component includes a first bevel gear and a second bevel gear, the rotating shaft rotates through the second upright, the second bevel gear is fixedly connected to one end of the rotating shaft near the transmission shaft, and the first bevel gear is fixedly installed on the outer side of the transmission shaft at the position corresponding to the second bevel gear, and the first bevel gear and the second bevel gear are meshed and connected.

[0010] The present invention is further configured such that a fixing plate is fixedly installed on the outer side of the rotating shaft, and a mounting column is fixedly installed on the fixing plate. Circular grooves are opened on both sides of the mounting column, and a limiting rod is slidably installed inside the circular groove. One end of the limiting rod extending out of the circular groove is set as an inclined surface.

[0011] The present invention is further configured such that a spring is fixedly connected inside each of the circular grooves, and the other end of the spring is fixedly connected to the limiting rod. A connecting groove is opened on the upper end of the mounting column corresponding to the position of the circular groove. A lever is slidably installed inside each connecting groove, and the bottom end of the lever is fixedly connected to the limiting rod.

[0012] The present invention is further configured such that a second motor is fixedly installed on the upper end surface of the base plate, and the output shaft of the second motor is fixedly connected to the bottom surface of the rotating seat.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The heat treatment fixture for aero-engine parts is equipped with a first motor, a drive shaft, a first bevel gear, and a second bevel gear. The rotation of the drive shaft drives the first bevel gear to rotate. Since the first bevel gear and the second bevel gear are meshed, the rotation of the first bevel gear drives the second bevel gear to rotate synchronously. The rotation of the second bevel gear drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the mounting column to rotate, thereby causing the blade to rotate around the axis of the rotating shaft, making the heat treatment of the blade more uniform and improving the heat treatment efficiency of the blade.

[0016] 2. This heat treatment fixture for aero-engine parts is equipped with a circular groove, a limiting rod, a spring, a connecting groove, and a lever. When installing blades, the blades are automatically limited by simply inserting them into the outside of the mounting post. When it is necessary to remove the blades, simply pull the lever to move the limiting rod into the circular groove, thereby releasing the limitation on the blades. The operation is simple and facilitates the installation and removal of blades. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] Reference numerals in the attached drawings: 1. Base plate; 2. Rotating seat; 3. First upright; 4. Second upright; 5. Rotating shaft; 6. Mounting column; 7. Blade; 8. Top cover; 9. First motor; 10. Transmission shaft; 11. First bevel gear; 12. Second bevel gear; 13. Fixing plate; 14. Circular groove; 15. Limiting rod; 16. Spring; 17. Connecting groove; 18. Toggle lever; 19. Second motor. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a heat treatment fixture for aero-engine parts, including a base plate 1, a rotating seat 2 rotatably mounted on the upper surface of the base plate 1, first uprights 3 fixedly mounted at three ends of the upper surface of the rotating seat 2, and three second uprights 4 fixedly mounted at the middle position of the upper surface of the rotating seat 2, the second uprights 4 corresponding to the first uprights 3. Top covers 8 are fixedly mounted on the tops of the three second uprights 4.

[0027] On the opposing surfaces of the first support frame 3 and the second support frame 4, rotating shafts 5 are rotatably mounted on both the upper and lower sides. Specifically, a first motor 9 is fixedly mounted on the upper surface of the rotating base 2, corresponding to the three second supports 4. A transmission shaft 10 is fixedly mounted on the output end of the first motor 9. The other end of the transmission shaft 10 is rotatably connected to the top cover 8. A linkage assembly is provided between the transmission shaft 10 and the rotating shaft 5. The linkage assembly includes a first bevel gear 11 and a second bevel gear 12. The rotating shaft 5 rotates through the second support frame 4. The second bevel gear 12 is fixedly connected to the end of the rotating shaft 5 near the transmission shaft 10. The first bevel gear 11 is fixedly mounted on the outer side of the transmission shaft 10 at the position corresponding to the second bevel gear 12. The first bevel gear 11 and the second bevel gear 12 are meshed together. Start the first motor 9. The output shaft of the first motor 9 rotates, which drives the transmission shaft 10 to rotate. The rotation of the transmission shaft 10 drives the first bevel gear 11 to rotate. Since the first bevel gear 11 and the second bevel gear 12 are meshed, the rotation of the first bevel gear 11 drives the second bevel gear 12 to rotate synchronously. The rotation of the second bevel gear 12 drives the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 drives the mounting column 6 to rotate.

[0028] A mounting post 6 is fixedly installed on the rotating shaft 5. Specifically, a fixing plate 13 is fixedly installed on the outer side of the rotating shaft 5, and the mounting post 6 is fixedly installed on the fixing plate 13.

[0029] A blade 7 is mounted on the outer side of the mounting post 6. Specifically, circular grooves 14 are formed on both sides of the mounting post 6, and limiting rods 15 are slidably mounted inside each groove 14. One end of the limiting rod 15 extending out of the groove 14 is beveled. A spring 16 is fixedly connected inside each groove 14, and the other end of the spring 16 is fixedly connected to the limiting rod 15. A connecting groove 17 is formed on the upper surface of the mounting post 6 at the position corresponding to the groove 14, and a lever 18 is slidably mounted inside each connecting groove 17. The bottom end of the lever 18 is fixedly connected to the limiting rod 15. When it is necessary to remove the blade 7, simply pull the lever 18 to move the limiting rod 15 into the groove 14, thereby releasing the limiting of the blade 7. The operation is simple and facilitates the installation and removal of the blade 7.

[0030] A second motor 19 is fixedly mounted on the upper surface of the base plate 1, and the output shaft of the second motor 19 is fixedly connected to the bottom surface of the rotating seat 2. When the second motor 19 is started, the second motor 19 rotates, causing the rotating seat 2 to rotate, which in turn causes the blades 7 to rotate around the output shaft axis of the second motor 19.

[0031] Working principle:

[0032] In use, the blade 7 is inserted onto the outside of the mounting post 6. During insertion, because the end of the limiting rod 15 is beveled, the blade 7 pushes the limiting rods 15 on both sides of the mounting post 6 into the circular groove 14, causing the spring 16 to contract. When the blade 7 moves below the circular groove 14, the spring 16 returns to its original state, causing the limiting rod 15 to move out of the circular groove 14, thus limiting the blade 7. To remove the blade 7, simply pull the lever 18 to move the limiting rod 15 into the circular groove 14, thereby releasing the limitation on the blade 7. The operation is simple and facilitates the installation and removal of the blade 7.

[0033] After the blade 7 is installed, the first motor 9 is started. The output shaft of the first motor 9 rotates, driving the transmission shaft 10 to rotate. The transmission shaft 10 rotates, driving the first bevel gear 11 to rotate. Since the first bevel gear 11 and the second bevel gear 12 are meshed, the rotation of the first bevel gear 11 drives the second bevel gear 12 to rotate synchronously. The rotation of the second bevel gear 12 drives the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 drives the mounting column 6 to rotate, thereby causing the blade 7 to rotate around the axis of the rotating shaft 5. At the same time, the second motor 19 is started. The rotation of the second motor 19 drives the rotating seat 2 to rotate, thereby causing the blade 7 to rotate around the axis of the output shaft of the second motor 19. This makes the heat treatment of the blade 7 more uniform and improves the heat treatment efficiency of the blade 7.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat treatment fixture for aero-engine parts, comprising a base plate (1), characterized in that: The upper end face of the base plate (1) is rotatably provided with a rotating seat (2). The three ends of the upper end face of the rotating seat (2) are fixedly installed with a first upright (3). The middle position of the upper end face of the rotating seat (2) is fixedly installed with three second uprights (4). The second uprights (4) correspond to the first uprights (3). The upper and lower sides of the opposite surfaces of the first uprights (3) and the second uprights (4) are both limited to rotating shafts (5). The shafts (5) are fixedly provided with mounting columns (6). The outer side of the mounting columns (6) is limited to installing blades (7). The top of the three second uprights (4) is fixedly installed with a top cover (8).

2. The heat treatment fixture for aero-engine parts according to claim 1, characterized in that: The upper end of the rotating seat (2) is fixedly installed between the three second uprights (4). A transmission shaft (10) is fixedly installed on the output end of the first motor (9). The other end of the transmission shaft (10) is rotatably connected to the top cover (8). A linkage component is provided between the transmission shaft (10) and the rotating shaft (5).

3. The heat treatment fixture for aero-engine parts according to claim 2, characterized in that: The linkage assembly includes a first bevel gear (11) and a second bevel gear (12). The rotating shaft (5) rotates through the second upright (4). The second bevel gear (12) is fixedly connected to one end of the rotating shaft (5) near the transmission shaft (10). The first bevel gear (11) is fixedly installed on the outer side of the transmission shaft (10) at the position corresponding to the second bevel gear (12). The first bevel gear (11) and the second bevel gear (12) are meshed and connected.

4. The heat treatment fixture for aero-engine parts according to claim 1, characterized in that: A fixing plate (13) is fixedly installed on the outside of the rotating shaft (5), and the mounting column (6) is fixedly installed on the fixing plate (13). Circular grooves (14) are opened on both sides of the mounting column (6). Limiting rods (15) are slidably installed inside the circular grooves (14). The end of the limiting rod (15) extending out of the circular groove (14) is set with an inclined surface.

5. The heat treatment fixture for aero-engine parts according to claim 4, characterized in that: Springs (16) are fixedly connected inside the circular groove (14). The other end of the spring (16) is fixedly connected to the limiting rod (15). A connecting groove (17) is opened on the upper end of the mounting column (6) corresponding to the position of the circular groove (14). A lever (18) is slidably installed inside the connecting groove (17). The bottom end of the lever (18) is fixedly connected to the limiting rod (15).

6. The heat treatment fixture for aero-engine parts according to claim 1, characterized in that: The upper end face of the base plate (1) is fixedly installed with a second motor (19), and the output shaft of the second motor (19) is fixedly connected to the bottom face of the rotating seat (2).

Citation Information

Patent Citations

  • Heat treatment tool for aero-engine parts

    CN220149612U