A hanger flip tool for light aircraft engine production

Abstract

The present invention relates to a hanger flipping tool for light aircraft engine production, comprising two symmetrically arranged semi-square brackets, each semi-square bracket being movably provided with a plurality of double-headed screws, the middle part of the double-headed screws being rotatably connected to the semi-square bracket through a support rod sleeve, a sliding rod being fixedly provided on the semi-square bracket and on one side of the double-headed screw, a transmission seat being threadedly sleeved on both sides of the double-headed screw, each pair of transmission seats being symmetrical with each other about the double-headed screw, an oblique support rod being rotatably connected to the transmission seat, a push block being provided between each pair of oblique support rods, and the oblique support rod and the push block being hinged, two transmission sprockets being fixedly sleeved on one side of each double-headed screw, and weight-reducing grooves being provided at both corners of each semi-square bracket, a driving motor being installed in one of the weight-reducing grooves to adapt to aircraft engines of different sizes, and then the positioning bolt is locked to assist in fixing the position of the transmission seat, thereby maintaining stable contact between the push block and the aircraft engine to avoid loosening.

Description

Technical Field

[0001] The present invention relates to the technical field of aero-engine processing, and in particular to a hanger turnover tool for producing light aero-engines. Background Art

[0002] After vertical assembly, aircraft engines need to be flipped to a horizontal position for transportation and bench testing. Currently, a flipping cart is often used for flipping aircraft engines. However, the flipping operation using a flipping cart is complicated, the required flipping cart is large in size, the manufacturing cost is high, and it occupies a large area, making it inconvenient to move and manage.

[0003] Patent document CN112777478A discloses an aircraft engine flipping fixture and its lifting device. The fixture comprises a lifting device body and a lifting lug disposed on the lifting device body. The lifting device body includes a pair of fixing members and a connecting rod assembly. Each fixing member comprises a fixing portion and a connecting portion, each of which is disposed at either end of a semi-ring and extends radially outward from the semi-ring. The connecting rod assembly is hingedly connected to two opposing connecting portions at each end. The two fixing members are movable relative to each other to a docking position. In this docking position, the two opposing connecting portions are fixedly connected, and the connecting rod assembly is folded. The two fixing surfaces abut to form a fixed annular surface that matches the outer contour of the engine. The engine is secured within the fixed annular surface via mounting holes. The aforementioned patent has the beneficial effect of securing the aircraft engine via the fixed annular surface formed by the two fixing surfaces, ensuring that the engine mounting edge is tightly clamped against the fixing surface and generating significant end-face friction. This prevents radial forces on the mounting holes during the flipping process, which could cause tearing of the mounting holes, thereby improving process safety.

[0004] The above-mentioned device has the following shortcomings: when in use, the above-mentioned device can only clamp and fix the aircraft engine through the annular groove, and cannot adapt to aircraft engines of different sizes and diameters. The adaptability range is small, and the above-mentioned device cannot remain stable during hoisting during use, which is inconvenient for further processing of the aircraft engine, and the clamping stability is not high. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide a hanger flip tool for light aircraft engine production, thereby improving overall work efficiency.

[0006] The technical problems solved by the present invention are:

[0007] (1) The above device can only clamp and fix the aircraft engine through the annular groove when in use, and cannot adapt to aircraft engines of different sizes and diameters, and its adaptability range is relatively small;

[0008] (2) The above device cannot maintain stability when hoisted during use, making it inconvenient to further process the aircraft engine, and the clamping stability is not high.

[0009] The purpose of the present invention can be achieved through the following technical solutions: A hanger flip tool for light aircraft engine production, comprising two symmetrically arranged semi-square brackets, each semi-square bracket is movably provided with a plurality of double-headed screws, the middle part of the double-headed screw is rotatably connected to the semi-square bracket through a support rod sleeve, a sliding rod is fixedly provided on the semi-square bracket and on one side of the double-headed screw, both sides of the double-headed screw are threadedly connected with a transmission seat, each pair of transmission seats are symmetrical with each other about the double-headed screw, an oblique support rod is rotatably connected to the transmission seat, a push block is provided between each pair of oblique support rods, and the oblique support rod is hinged to the push block, two transmission sprockets are fixedly connected to one side of each double-headed screw, and weight-reducing grooves are provided at both corners of each semi-square bracket, and a drive motor is installed in one of the weight-reducing grooves.

[0010] As a further solution of the invention, the inner side wall of the semi-square bracket is semicircular, wherein a support bearing is fixedly installed on one side of one semi-square bracket, and the other semi-square bracket is rotatably connected to the semi-square bracket through the support bearing, and the other sides of the two semi-square brackets are fixed by fixing bolts.

[0011] As a further solution of the invention, the middle part of both sides of the semi-square bracket is rotatably connected with a lifting sleeve, the middle part of the support bearing is fixedly penetrated with a traction hook, and the two side walls of the semi-square bracket and on both sides of the lifting sleeve are fixedly connected with support side frames.

[0012] As a further solution of the invention, both ends of each double-headed screw are symmetrical about the semi-square bracket, each sliding rod is in one-to-one correspondence with the double-headed screw, and both ends of each sliding rod are symmetrical about the semi-square bracket. When the two semi-square brackets form a complete structure, the double-headed screws are evenly distributed at equal angles, and the double-headed screws on the two semi-square brackets are in one-to-one correspondence and symmetrical distribution.

[0013] As a further solution of the invention, a driving sprocket is fixedly connected to one end of the driving shaft of the driving motor, and the driving sprocket is driven by a driving chain and a transmission sprocket on two double-headed screws close to the driving motor. The transmission sprockets on adjacent double-headed screws are all connected with a transmission chain, and each double-headed screw on each semi-square bracket is driven by mutually staggered transmission chains to maintain synchronous rotation in the same direction.

[0014] As a further solution of the invention, a pushing rubber block made of rubber is fixedly connected to one side of the pushing block, and a limiting groove is provided in the middle of the pushing rubber block.

[0015] As a further solution of the invention, a positioning bolt is threadedly provided on the side wall of the transmission seat close to the sliding rod, and the positioning bolt abuts against the sliding rod.

[0016] Beneficial effects of the present invention:

[0017] (1) First, open the fixing bolt, separate the two semi-square brackets, stop the semi-square brackets at the outer periphery of the joint of the aircraft engine, then close the semi-square brackets and maintain the stable connection between the two semi-square brackets through the fixing bolts, then start the driving motor, rotate the active sprocket, drive the two adjacent double-headed screws through the active chain, and then drive the other double-headed screws connected to the same semi-square bracket to rotate synchronously in the same direction through the transmission sprocket and the transmission chain, so that each double-headed screw gathers each pair of transmission seats at the same time and speed, pushes the diagonal support rod, so that the diagonal support rod pushes the push block, and the push block abuts against the outer periphery of the joint of the aircraft engine, thereby clamping and fixing the aircraft engine together, and adjusting the position of the push block by moving the diagonal support rod to adapt to aircraft engines of different sizes, then lock the positioning bolt to assist in fixing the position of the transmission seat, maintain the stable abutment between the push block and the aircraft engine, and avoid loosening;

[0018] (2) During hoisting, the user hoists the aircraft engine through multiple tools, reducing the support force of a single tool on the aircraft engine to avoid loosening and other accidents. During hoisting, the lifting is carried out through the lifting sleeve, and the aircraft engine is flexibly flipped by pulling the traction hook. At the same time, the transmission chain and the active chain can be removed to adapt to the non-circular outer periphery of the aircraft engine. When the aircraft engine needs to be kept at 90 degrees after flipping, other support frames are tied or fixed on the supporting side frame to keep the tool vertical and the aircraft engine horizontal, avoid shaking, and facilitate processing. The push-pushing rubber block is used to maintain adaptation to the surface of the aircraft engine to avoid damage to the aircraft engine. At the same time, the area of the abutment of the aircraft engine is increased to improve stability. The corresponding interlocking connection between the limit groove and the outer sleeve of the aircraft engine further improves the stability of the abutment and maintains stable clamping and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a top view of the overall structure of the present invention;

[0021] Figure 2 This is a top view of the overall structure of the present invention after removing the transmission seat, diagonal support rod and push block;

[0022] Figure 3 It is a side view of the overall structure of the present invention;

[0023] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle;

[0024] Figure 5 It is a side view of the local structure of the present invention;

[0025] In the figure: 1. Semi-square bracket; 2. Support bearing; 3. Traction hook; 4. Double-headed screw; 5. Sliding rod; 6. Transmission seat; 7. Diagonal support rod; 8. Push block; 9. Drive motor; 10. Driving sprocket; 11. Driving chain; 12. Fixing bolt; 13. Transmission chain; 14. Support side frame; 15. Lifting shaft sleeve; 16. Weight reduction groove; 17. Support rod sleeve; 18. Transmission sprocket; 19. Push rubber block; 20. Limit groove; 21. Positioning bolt. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0027] See also Figure 1-5 As shown: A hanger flipping tool for light aircraft engine production, including two symmetrically arranged semi-square brackets 1, each semi-square bracket 1 is movably provided with a plurality of double-headed screws 4, the middle part of the double-headed screw 4 is rotatably connected to the semi-square bracket 1 through a support rod sleeve 17, a sliding rod 5 is fixedly provided on the semi-square bracket 1 and on one side of the double-headed screw 4, both sides of the double-headed screw 4 are threadedly connected with a transmission seat 6, each pair of transmission seats 6 are symmetrical with each other about the double-headed screw 4, and a diagonal strut 7 is rotatably connected to the transmission seat 6, and a push block 8 is provided between each pair of diagonal struts 7, and the diagonal strut 7 is hinged to the push block 8, one side of each double-headed screw 4 is fixedly connected with two transmission sprockets 18, and each semi-square bracket 1 is provided with a weight-reducing groove 16 at both corners, and a drive motor 9 is installed in one of the weight-reducing grooves 16.

[0028] The inner side wall of the semi-square bracket 1 is semicircular, and a support bearing 2 is fixedly installed on one side of one semi-square bracket 1, and the other semi-square bracket 1 is rotatably connected to the semi-square bracket 1 through the support bearing 2, and the other sides of the two semi-square brackets 1 are threadedly fixed by a fixing bolt 12.

[0029] The middle of both sides of the semi-square bracket 1 are rotatably connected with a lifting sleeve 15, the middle of the support bearing 2 is fixedly penetrated with a traction hook 3, and the two side walls of the semi-square bracket 1 and on both sides of the lifting sleeve 15 are fixedly connected with a supporting side frame 14.

[0030] Both ends of each double-headed screw 4 are symmetrical with respect to the semi-square bracket 1, each sliding rod 5 is in one-to-one correspondence with the double-headed screw 4, and both ends of each sliding rod 5 are symmetrical with respect to the semi-square bracket 1. When the two semi-square brackets 1 form a complete structure, the double-headed screws 4 are evenly distributed at equal angles, and the double-headed screws 4 on the two semi-square brackets 1 are in one-to-one correspondence and symmetrical distribution.

[0031] One end of the driving shaft of the driving motor 9 is fixedly sleeved with a driving sprocket 10, and the driving sprocket 10 is driven by a driving chain 11 and a transmission sprocket 18 on the two double-headed screws 4 close to the driving motor 9. The transmission sprockets 18 on adjacent double-headed screws 4 are sleeved with a transmission chain 13, and each double-headed screw 4 on each semi-square bracket 1 is driven by mutually staggered transmission chains 13 to maintain synchronous rotation in the same direction.

[0032] One side of the pushing block 8 is fixedly connected to a pushing rubber block 19 made of rubber material, and a limiting groove 20 is provided in the middle of the pushing rubber block 19.

[0033] A positioning bolt 21 is threadedly provided on a side wall of the transmission base 6 close to the sliding rod 5 , and the positioning bolt 21 abuts against the sliding rod 5 .

[0034] When the present invention is in use, the staff first opens the fixing bolt 12, separates the two semi-square brackets 1, stops the semi-square bracket 1 on the outer periphery of the socket joint of the aircraft engine, then closes the semi-square bracket 1, and maintains the stable connection of the two semi-square brackets 1 through the fixing bolt 12, then starts the driving motor 9, rotates the active sprocket 10, drives the two adjacent double-headed screws 4 through the active chain 11, and then drives the other double-headed screws 4 connected to the same semi-square bracket 1 to rotate synchronously in the same direction through the transmission sprocket 18 and the transmission chain 13, so that each double-headed screw 4 is simultaneously and synchronously gathered together at the same speed to each pair of transmission seats 6, push the diagonal support rod 7, so that the diagonal support rod 7 pushes the push block 8, and the push block 8 abuts against the outer periphery of the socket joint of the aircraft engine, thereby jointly clamping and fixing the aircraft engine, and adjusting the position of the push block 8 by moving the diagonal support rod 7 to adapt to aircraft engines of different sizes, and then locks the positioning bolt 21 to assist in fixing the position of the transmission seat 6, maintain the stable abutment between the push block 8 and the aircraft engine, and avoid loosening;

[0035] During hoisting, the user hoists the aircraft engine through multiple tools, reducing the supporting force of a single tool on the aircraft engine, and avoiding accidents such as loosening. During hoisting, the lifting is carried out through the lifting sleeve 15, and the aircraft engine is flexibly flipped by pulling the traction hook 3. At the same time, the transmission chain 13 and the active chain 11 can be removed to adapt to the non-circular outer periphery of the aircraft engine. When the aircraft engine needs to be kept at 90 degrees after flipping, other support frames are tied or fixedly installed through the supporting side frame 14 to keep the tool vertical and the aircraft engine horizontal, avoiding shaking and facilitating processing. The push rubber block 19 is used to maintain adaptation to the surface of the aircraft engine to avoid damage to the aircraft engine. At the same time, the area of the abutment of the aircraft engine is increased to improve stability. The corresponding interlocking connection with the outer peripheral sleeve of the aircraft engine through the limiting groove 20 is further improved to maintain stable clamping and fixation.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A hanger flipping tool for light aircraft engine production, characterized in that: The invention comprises two symmetrically arranged semi-square brackets (1), each semi-square bracket (1) is provided with a plurality of double-headed screw rods (4) movably, the middle part of the double-headed screw rods (4) is rotatably connected to the semi-square bracket (1) through a support rod sleeve (17), a sliding rod (5) is fixedly provided on the semi-square bracket (1) and located on one side of the double-headed screw rod (4), both sides of the double-headed screw rod (4) are threadedly sleeved with a transmission seat (6), each pair of transmission seats (6) are symmetrical with each other about the double-headed screw rod (4), a diagonal support rod (7) is rotatably connected to the transmission seat (6), a push block (8) is provided between each pair of diagonal support rods (7), and the diagonal support rod (7) and the push block (8) are hingedly connected, one side of each double-headed screw rod (4) is fixedly sleeved with two transmission sprockets (18), and each semi-square bracket (1) is provided with a weight-reducing groove (16) at both corners, and a driving motor (9) is installed in one of the weight-reducing grooves (16); Both ends of each double-headed screw (4) are symmetrical with respect to the semi-square bracket (1), each sliding rod (5) is in one-to-one correspondence with the double-headed screw (4), and both ends of each sliding rod (5) are symmetrical with respect to the semi-square bracket (1). When the two semi-square brackets (1) form a complete structure, the double-headed screws (4) are evenly distributed at equal angles, and the double-headed screws (4) on the two semi-square brackets (1) are in one-to-one correspondence and symmetrical distribution. One end of the driving shaft of the driving motor (9) is fixedly sleeved with a driving sprocket (10), and the driving sprocket (10) is driven by a driving chain (11) and a transmission sprocket (18) on two double-headed screws (4) close to the driving motor (9). The transmission sprockets (18) on adjacent double-headed screws (4) are sleeved with a transmission chain (13), and each double-headed screw (4) on each semi-square bracket (1) is driven by the mutually staggered transmission chains (13) to maintain synchronous rotation in the same direction.

2. A hanger turning tool for light aircraft engine production according to claim 1, characterized in that: The inner peripheral side wall of the semi-square bracket (1) is semicircular, a support bearing (2) is fixedly mounted on one side of one of the semi-square brackets (1), the other semi-square bracket (1) is rotatably connected to the semi-square bracket (1) via the support bearing (2), and the other sides of the two semi-square brackets (1) are threadedly fixed via a fixing bolt (12).

3. The hanger turning tool for light aircraft engine production according to claim 2, characterized in that: The middle of both sides of the semi-square bracket (1) are rotatably connected to a lifting sleeve (15), the middle of the support bearing (2) is fixedly provided with a traction hook (3), and the two side walls of the semi-square bracket (1) and on both sides of the lifting sleeve (15) are fixedly connected to support side frames (14).

4. The hanger turning tool for light aircraft engine production according to claim 1, characterized in that: A rubber pushing rubber block (19) is fixedly connected to one side of the pushing block (8), and a limiting groove (20) is provided in the middle of the pushing rubber block (19).

5. The hanger turning tool for light aircraft engine production according to claim 1, characterized in that: A positioning bolt (21) is threadedly provided on a side wall of the transmission seat (6) close to the sliding rod (5), and the positioning bolt (21) abuts against the sliding rod (5).

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