A hanger tool for aircraft engine installation

Abstract

The utility model belongs to the technical field of aircraft engine installation, disclose a kind of for aircraft engine installation's hanging tool, it includes: hanging crossbeam, it has rectangular square tube and lifting hook component, the lifting hook component is sleeved on rectangular square tube, and is positioned by adjusting screw;Cable assembly has sleeve type single ear plate, sleeve type double ear plate, steel wire rope, front ear piece, middle ear piece and rear ear piece, two sleeve type single ear plate are respectively sleeved in rectangular square tube both ends, the sleeve type double ear plate is sleeved in rectangular square tube middle section, the sleeve type single ear plate and front ear piece, rear ear piece are connected respectively by steel wire rope, the sleeve type double ear plate and two middle ear pieces are connected respectively by steel wire rope.The utility model solves the problem of the engine hanging installation of certain aircraft.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft engine installation technology, specifically relating to a lifting fixture for aircraft engine installation. Background Technology

[0002] The installation of a certain type of aircraft engine requires lifting the engine horizontally from the engine bracket and slowly entering the engine nacelle until the engine mounting base fits against the engine nacelle fixing frame boss, thereby aligning the axis of the mounting holes, and then fixing it with bolts and nuts.

[0003] To solve the above problems, a lifting fixture for aircraft engine installation is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting fixture for aircraft engine installation, which solves the problem of inconvenient installation of a certain type of aircraft engine. The fixture can be used to lift the engine horizontally from the engine bracket, and by moving the fixture, the engine mounting base and the engine nacelle mating plane can be aligned, ensuring that the engine is installed safely and stably on the engine nacelle.

[0005] The technical solution of this utility model is implemented as follows: A lifting fixture for aircraft engine installation, comprising: A suspension beam has a rectangular square tube and a hook assembly, the hook assembly being sleeved on the rectangular square tube and positioned by adjusting screws; A steel cable assembly includes a single-eared sleeve, a double-eared sleeve, a steel wire rope, a front ear, a middle ear, and a rear ear. The two single-eared sleeves are respectively sleeved on both ends of a rectangular square tube, and the double-eared sleeve is sleeved on the middle section of the rectangular square tube. The single-eared sleeve and the front and rear ear are respectively connected by steel wire ropes, and the double-eared sleeve and the two middle ear are respectively connected by steel wire ropes.

[0006] As a further embodiment of this utility model: a plurality of adjustment holes are evenly provided on the rectangular square tube; the hook assembly includes a hook ring and a hook frame; the hook ring has a ring body and a base; the hook frame adopts a U-shaped structure design; and the base and the hook frame are provided with corresponding through holes. During installation, the base is attached to the rectangular square tube, the hook bracket is sleeved on the rectangular square tube and aligned with the base, a pin is inserted into the through hole, and a first cotter pin is installed on the pin for limiting. The base is also provided with a threaded hole, which is aligned with an adjustment hole on the rectangular square tube and then positioned by adjusting the screw.

[0007] As a further embodiment of this utility model: the adjusting screw includes a threaded section and a smooth section. The threaded section is threadedly connected to the threaded hole of the base, and the smooth section is directly inserted into an adjusting hole on the rectangular square tube.

[0008] As a further embodiment of this utility model: a plurality of positioning holes are provided on the rectangular square tube, and the sleeve-type single ear plate and the sleeve-type double ear plate both have a sleeve adapted to the rectangular square tube, and a threaded hole provided at the top of the sleeve. The difference is that the sleeve-type single ear plate has one ear plate at the bottom end, and the sleeve-type double ear plate has two opposite ear plates at the bottom end, and each ear plate has a through hole. During installation, first, fit the double-eared sleeve onto the rectangular square tube, align the threaded hole and the positioning hole in the middle section of the rectangular square tube, and fix it with fixing screws. Then, install the single-eared sleeve at both ends of the rectangular square tube in the same way.

[0009] As a further embodiment of this utility model: an ear plate joint is provided at one end of the wire rope. One end of the ear plate joint is a cylinder with a blind hole inside, which is pressed and connected to the wire rope. The other end is provided with two ear plates with through holes. During installation, the ear plate connector is inserted into the ear plate of the sleeve-type single ear plate or the sleeve-type double ear plate, aligned with the through hole, the shaft pin is inserted, and a second cotter pin is installed on the shaft pin for limiting.

[0010] As a further embodiment of this utility model: an adjustment joint is provided at the other end of the wire rope. The adjustment joint includes a screw joint, an adjustment sleeve, and an ear plate screw. One end of the screw joint is a cylinder with a blind hole inside, which is pressed and connected to the wire rope. The other end is a screw. The adjustment sleeve is a hexagonal prism with internal threads at both ends and an observation port on the side. One end of the ear plate screw is a screw, and the other end has two ear plates with through holes. During installation, the screw connector and the ear plate screw are threaded to both ends of the adjusting sleeve, and the length of the steel cable assembly can be adjusted by rotating it.

[0011] As a further embodiment of this utility model: the front ear piece, middle ear piece and rear ear piece have similar structures but different sizes, one end is provided with an ear plate and the other end is provided with two ear plates, and each ear plate is provided with a through hole; During installation, one end of the front ear piece, middle ear piece, and rear ear piece is inserted into the ear plate screw, aligned with the through hole, and the shaft pin is inserted. A second cotter pin is then installed on the shaft pin for limiting.

[0012] As a further embodiment of this utility model: the front engine mounting ear, the engine mounting base, and the rear engine mounting ear are respectively connected to the other ends of the front ear, the middle ear, and the rear ear by a stop pin.

[0013] As a further embodiment of this utility model: the stop pin includes a ring, a pin, a cylindrical pin and a stop piece. The ring has a break. The pin adopts a stepped structure design. One end of the pin has a through hole and the other end has two opposing semi-cylinders with through holes. The stop piece has a through hole. During installation, the ring is inserted into the through hole of the pin, and then inserted together into the two ear plates at the other end of the front ear plate, middle ear plate, and rear ear plate. The stop plate is placed between the two semi-cylinders, aligned with the through hole, and riveted to the two semi-cylinders respectively through the two ends of the cylindrical pin.

[0014] The beneficial effects of this application are as follows: 1. This application improves work efficiency and also ensures the quality of engine installation.

[0015] 2. This application enables the engine to be horizontally lifted and safely and smoothly placed into the engine compartment and installed on the fixed frame boss.

[0016] The present application will be further described in detail below with reference to the accompanying drawings of the embodiments. Attached Figure Description

[0017] Figure 1 This is an assembly drawing of a lifting fixture for aircraft engine installation according to this utility model. Figure 2 This is an exploded view of the hanging beam of this utility model; Figure 3 This is an exploded view of the steel cable assembly of this utility model; Figure 4 This is an exploded view of the stop pin of this utility model; Figure 5 These are partial part drawings of this utility model; Figure 6 This is a schematic diagram of an application scenario of this utility model; Figure 7 This is a schematic diagram of the second application scenario of this utility model.

[0018] The attached figures are labeled as follows: 1-Hanging beam, 2-Steel cable assembly, 3-Front lug, 4-Middle lug, 5-Rear lug, 6-Stop pin, 7-Shaft pin, 8-Second cotter pin, 9-Hook ring, 10-Hook bracket, 11-Pin, 12-First cotter pin, 13-Adjusting screw, 14-Rectangular tube, 15-Fixing screw, 16-Single lug, 17-Double lug, 18-Luggage plate connector, 19-Wire rope, 20-Screw connector, 21-Adjusting sleeve, 22-Luggage plate screw, 23-Ring, 24-Pin, 25-Cylindrical pin, 26-Stop plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0020] In the accompanying drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this utility model.

[0021] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] The following is in conjunction with the appendix Figure 1-7 The embodiments of this utility model will be described in detail below.

[0023] Example 1 This utility model provides a lifting fixture for aircraft engine installation, comprising: The suspension beam 1 has a rectangular square tube 14 and a hook assembly, which is sleeved on the rectangular square tube 14 and positioned by adjusting screws 13; The steel cable assembly 2 has a single-ear plate 16, a double-ear plate 17, a steel wire rope 19, a front ear piece 3, a middle ear piece 4, and a rear ear piece 5. The two single-ear plates 16 are respectively sleeved on both ends of a rectangular square tube 14, and the double-ear plate 17 is sleeved on the middle section of the rectangular square tube 14. The single-ear plate 16 and the front ear piece 3 and the rear ear piece 5 are respectively connected by the steel wire rope 19, and the double-ear plate 17 and the two middle ear pieces 4 are respectively connected by the steel wire rope 19.

[0024] Furthermore, a plurality of adjustment holes are evenly provided on the rectangular square tube 14. The hook assembly includes a hook ring 239 and a hook frame 10. The hook ring 239 has a ring 23 body and a base. The hook frame 10 adopts a U-shaped structure design. The base and the hook frame 10 are provided with corresponding through holes. During installation, the base is attached to the rectangular square tube 14, the hook bracket 10 is sleeved on the rectangular square tube 14 and aligned with the base, the pin 11 is inserted into the through hole, and the first cotter pin 12 is installed on the pin 11 for limiting. A threaded hole is also provided on the base. After the threaded hole is aligned with an adjustment hole on the rectangular square tube 14, it is positioned by adjusting screw 13.

[0025] Furthermore, the adjusting screw 13 includes a threaded section and a smooth section. The threaded section is threadedly connected to the threaded hole of the base, and the smooth section is directly inserted into an adjusting hole on the rectangular square tube 14.

[0026] Furthermore, the rectangular square tube 14 is provided with several positioning holes. The sleeve-type single ear plate 16 and the sleeve-type double ear plate 17 are both provided with a sleeve that is adapted to the rectangular square tube 14, and a threaded hole provided at the top of the sleeve. The difference is that the sleeve-type single ear plate 16 is provided with an ear plate at the bottom, and the sleeve-type double ear plate 17 is provided with two opposite ear plates at the bottom. Each ear plate is provided with a through hole. During installation, first, fit the sleeve-type double ear plate 17 onto the rectangular square tube 14, align the threaded hole and the positioning hole in the middle section of the rectangular square tube 14, and connect and fix it with fixing screws 15. Then, install the sleeve-type single ear plate 16 at both ends of the rectangular square tube 14 in the same way.

[0027] Furthermore, an ear plate joint 18 is provided at one end of the wire rope 19. One end of the ear plate joint 18 is a cylinder with a blind hole inside, which is pressed and connected to the wire rope 19. The other end is provided with two ear plates with through holes. During installation, the ear plate connector 18 is inserted into the ear plate of the sleeve-type single ear plate 16 or the sleeve-type double ear plate 17, aligned with the through hole, the shaft pin 7 is inserted, and the second cotter pin 8 is installed on the shaft pin 7 for limiting.

[0028] Furthermore, an adjustment joint is provided at the other end of the wire rope 19. The adjustment joint includes a screw joint 20, an adjustment screw sleeve 21, and an ear plate screw 22. One end of the screw joint 20 is a cylinder with a blind hole inside, which is pressed and connected to the wire rope 19. The other end is a screw. The adjustment screw sleeve 21 is a hexagonal prism with internal threads at both ends and an observation port on the side. One end of the ear plate screw 22 is a screw, and the other end has two ear plates with through holes. During installation, the screw connector 20 and the ear plate screw 22 are threaded to both ends of the adjusting sleeve 21, and the length of the steel cable assembly 2 can be adjusted when rotated.

[0029] Furthermore, the front ear piece 3, the middle ear piece 4, and the rear ear piece 5 have similar structures but different sizes. One end has an ear plate, and the other end has two ear plates. Each ear plate has a through hole. During installation, one end of the front ear piece 3, the middle ear piece 4, and the rear ear piece 5 are inserted into the ear plate screw 22, aligned with the through hole, and the shaft pin 7 is inserted. A second cotter pin 8 is then installed on the shaft pin 7 for limiting.

[0030] Furthermore, the other ends of the front ear plate 3, middle ear plate 4, and rear ear plate 5 are respectively connected to the front engine mounting ear, engine mounting base, and rear engine mounting ear via stop pins 6.

[0031] Furthermore, the stop pin 6 includes a ring 23, a pin 24, a cylindrical pin 25, and a stop piece 26. The ring 23 has a break, the pin 24 adopts a stepped structure design, one end of the pin 24 has a through hole, and the other end has two opposing semi-cylinders with through holes on the semi-cylinders. The stop piece 26 has a through hole. During installation, the ring 23 is inserted into the through hole of the pin 24, and then inserted together into the two ear plates at the other end of the front ear plate 3, the middle ear plate 4, and the rear ear plate 5. The stop plate 26 is placed between the two semi-cylinders, aligned with the through hole, and riveted to the two semi-cylinders at both ends by the cylindrical pin 25.

[0032] Example 2 This utility model provides a lifting fixture for aircraft engine installation, characterized by comprising a lifting beam 1, a steel cable assembly 2, a front lug 3, a middle lug 4, a rear lug 5, a stop pin 6, a shaft pin 7, and a second cotter pin 8. The lifting beam 1 includes a hook ring 9, a hook bracket 10, a pin 11, a first cotter pin 12, an adjusting screw 13, a rectangular tube 14, a fixing screw 15, a sleeve-type single lug plate 16, and a sleeve-type double lug plate 17. The steel cable assembly 2 includes a lug plate connector 18, a wire rope 19, a screw connector 20, an adjusting screw sleeve 21, and a lug plate screw 22. The stop pin 6 includes a ring 23, a pin 24, a cylindrical pin 25, and a stop piece 26.

[0033] The hook ring 9 has a rectangular base with three through holes on its side for connecting to the hook frame 10. The base end has a threaded hole, which is fixed to the adjustment hole of the rectangular tube 14 by adjusting screws 13. The top of the hook ring 9 has a ring for connecting to the crane hook. The hook frame 10 is U-shaped with three through holes on both sides, connected to the hook ring 9 by pins 11 and a first cotter pin 12. The threaded rod of the adjusting screw 13 is used to connect to the hook ring 9, and the smooth rod is inserted into the adjustment hole of the rectangular tube 14 to adjust the position of the hook ring 9 within the rectangular tube 14. The rectangular tube 14 is a rectangular sleeve. Each end and the middle of the rectangular tube 14 has a through hole as a positioning hole for positioning and fixing screws 15. Ten equally spaced through holes are provided on the front side of the middle section as adjustment holes for positioning the adjusting screws 13. The single-ear plate 16 has a rectangular sleeve at one end with a threaded hole at the top. It is fixed to the front and rear positioning holes of the rectangular square tube 14 by a fixing screw 15. The bottom end has an ear plate with a through hole, which is connected to the ear plate connector 18 of the steel cable assembly 2 via a shaft pin 7 and a second cotter pin 8. The double-ear plate 17 has a rectangular sleeve at one end with a threaded hole at the top. It is fixed to the middle positioning hole of the rectangular square tube 14 by a fixing screw 15. The bottom end has two ear plates with through holes, which are connected to the ear plate connector 18 of the steel cable assembly 2 via a shaft pin 7 and a second cotter pin 8. The threaded rod of the fixing screw 15 is used to connect the single-ear plate 16 and the double-ear plate 17. The smooth rod is inserted into the positioning hole of the rectangular square tube 14, fixing the single-ear plate 16 and the double-ear plate 17 onto the rectangular square tube 14.

[0034] One end of the ear plate connector 18 is cylindrical with a blind hole inside, and is pressed and connected to the wire rope 19. The other end has two ear plates, each with a through hole. One end of the screw connector 20 is cylindrical with a blind hole inside, and is pressed and connected to the wire rope 19. The other end is a screw, connected to the adjusting sleeve 21. The adjusting sleeve 21 is a hexagonal prism with internal threads, one end being right-hand thread and the other end being left-hand thread. Both ends are connected to the screw connector 20 and the ear plate screw 22 respectively. Rotation allows adjustment of the length of the cable assembly 2. An observation port is provided on the side to ensure that the screw ends of the screw connector 20 and the ear plate screw 22 extend beyond the observation port during use. One end of the ear plate screw 22 is a screw, connected to the adjusting sleeve 21. The other end has two ear plates, each with a through hole.

[0035] The front lug 3 has a lug plate at one end with a through hole, which is connected to the lug plate screw 22 of the front cable assembly 2 via a shaft pin 7 and a second cotter pin 8. The other end has two lug plates with through holes, which are connected to the front engine mounting lug via a stop pin 6. The middle lug 4 has a lug plate at one end with a through hole, which is connected to the lug plate screw 22 of the middle cable assembly 2 via a shaft pin 7 and a second cotter pin 8. The other end has two lug plates with through holes, which are connected to the engine mounting base via a stop pin 6. The rear lug 5 has a lug plate at one end with a through hole, which is connected to the lug plate screw 22 of the rear cable assembly 2 via a shaft pin 7 and a second cotter pin 8. The other end has two lug plates with through holes, which are connected to the rear engine mounting lug via a stop pin 6.

[0036] The ring 23 has a break and is connected to the pin 24. The bottom end of the pin 24 has a through hole for mounting the ring 23, and the other end has two semi-cylinders with through holes on their sides. The pin 24 is connected to the stop plate 26 by a cylindrical pin 25 and riveted to it. After riveting, the stop plate 26 can rotate freely.

[0037] A method for using a lifting fixture for aircraft engine installation, the method being performed using the aforementioned device, includes: placing the engine horizontally on a bracket while it is on the ground; using a crane hook to lift the lifting fixture hook ring 9 to a certain height; connecting the front lug 3 to the engine's front lifting lug using a stop pin 6; and connecting the two middle lugs 4 to two mounting seats on the upper part of the engine. Adjusting the length of the front and middle steel cable assemblies 2 by rotating the adjusting screw sleeve 21, so that when the front and middle steel cable assemblies 2 are just taut, the rectangular square tube 14 is in a horizontal state. Disconnecting the engine from the bracket, raising the engine to a certain height; if the engine is tilted forward or backward, lowering the engine onto the bracket; moving the adjusting screw 13 and inserting it into a suitable adjusting hole in the rectangular square tube 14; adjusting the position of the hook ring 9 until the engine is horizontal after being raised. Continuing to raise the engine to the height of the engine compartment, slowly entering the engine compartment; and connecting the rear lug 5 to the engine's rear lifting lug using the stop pin 6 after the engine's rear lifting lug has entered the engine mounting frame. Rotate the adjusting sleeve 21 to adjust the length of the rear cable assembly 2, ensuring it is taut. Disconnect the two middle lugs 4 from the engine mounting bracket. Continue moving the engine into the engine compartment until the engine mounting bracket aligns with the engine compartment fixed section boss. Adjust the engine's position so that the engine mounting bracket hole and the engine compartment fixed section boss hole axis coincide, then secure them with bolts and nuts. Disconnect the front lug 3 from the engine front lifting lug and the rear lug 5 from the engine rear lifting lug, and disassemble the lifting fixture.

[0038] Thus, the objective of this utility model has been achieved.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting fixture for installing aircraft engines, characterized in that, include: A suspension beam has a rectangular square tube and a hook assembly, the hook assembly being sleeved on the rectangular square tube and positioned by adjusting screws; A steel cable assembly includes a single-eared sleeve, a double-eared sleeve, a steel wire rope, a front ear, a middle ear, and a rear ear. The two single-eared sleeves are respectively sleeved on both ends of a rectangular square tube, and the double-eared sleeve is sleeved on the middle section of the rectangular square tube. The single-eared sleeve and the front and rear ear are respectively connected by steel wire ropes, and the double-eared sleeve and the two middle ear are respectively connected by steel wire ropes.

2. The lifting fixture for aircraft engine installation according to claim 1, characterized in that, The rectangular tube is provided with a number of adjustment holes evenly distributed. The hook assembly includes a hook ring and a hook frame. The hook ring has a ring body and a base. The hook frame adopts a U-shaped structure design. The base and the hook frame are provided with corresponding through holes. During installation, the base is attached to the rectangular square tube, the hook bracket is sleeved on the rectangular square tube and aligned with the base, a pin is inserted into the through hole, and a first cotter pin is installed on the pin for limiting. The base is also provided with a threaded hole, which is aligned with an adjustment hole on the rectangular square tube and then positioned by adjusting the screw.

3. The lifting fixture for aircraft engine installation according to claim 2, characterized in that, The adjusting screw includes a threaded section and a smooth section. The threaded section is threadedly connected to the threaded hole of the base, and the smooth section is directly inserted into an adjusting hole on the rectangular square tube.

4. The lifting fixture for aircraft engine installation according to claim 1, characterized in that, The rectangular square tube is provided with several positioning holes. The sleeve-type single ear plate and the sleeve-type double ear plate are both provided with a sleeve that is adapted to the rectangular square tube and a threaded hole at the top of the sleeve. The difference is that the sleeve-type single ear plate is provided with one ear plate at the bottom end, and the sleeve-type double ear plate is provided with two opposite ear plates at the bottom end. Each ear plate is provided with a through hole. During installation, first, fit the double-eared sleeve onto the rectangular square tube, align the threaded hole and the positioning hole in the middle section of the rectangular square tube, and fix it with fixing screws. Then, install the single-eared sleeve at both ends of the rectangular square tube in the same way.

5. The lifting fixture for aircraft engine installation according to claim 4, characterized in that, An ear plate connector is provided at one end of the wire rope. One end of the ear plate connector is a cylinder with a blind hole inside, which is pressed and connected to the wire rope. The other end is provided with two ear plates with through holes. During installation, the ear plate connector is inserted into the ear plate of the sleeve-type single ear plate or the sleeve-type double ear plate, aligned with the through hole, the shaft pin is inserted, and a second cotter pin is installed on the shaft pin for limiting.

6. The lifting fixture for aircraft engine installation according to claim 5, characterized in that, An adjusting joint is provided at the other end of the wire rope. The adjusting joint includes a screw joint, an adjusting screw sleeve, and an ear plate screw. One end of the screw joint is a cylinder with a blind hole inside, which is pressed and connected to the wire rope. The other end is a screw. The adjusting screw sleeve is a hexagonal prism with internal threads at both ends and an observation port on the side. One end of the ear plate screw is a screw, and the other end has two ear plates with through holes. During installation, the screw connector and the ear plate screw are threaded to both ends of the adjusting sleeve, and the length of the steel cable assembly can be adjusted by rotating it.

7. The lifting fixture for aircraft engine installation according to claim 6, characterized in that, The front ear piece, middle ear piece, and rear ear piece have similar structures but different sizes. One end has an ear plate, and the other end has two ear plates. Each ear plate has a through hole. During installation, one end of the front ear piece, middle ear piece, and rear ear piece is inserted into the ear plate screw, aligned with the through hole, and the shaft pin is inserted. A second cotter pin is then installed on the shaft pin for limiting.

8. The lifting fixture for aircraft engine installation according to claim 7, characterized in that, The front, middle, and rear lugs are connected to the engine front mounting lug, engine mounting base, and engine rear mounting lug respectively via stop pins at their other ends.

9. The lifting fixture for aircraft engine installation according to claim 8, characterized in that, The stop pin includes a ring, a pin, a cylindrical pin, and a stop plate. The ring has a break. The pin adopts a stepped structure design. One end of the pin has a through hole, and the other end has two opposing semi-cylinders with through holes. The stop plate also has a through hole. During installation, the ring is inserted into the through hole of the pin, and then inserted together into the two ear plates at the other end of the front ear plate, middle ear plate, and rear ear plate. The stop plate is placed between the two semi-cylinders, aligned with the through hole, and riveted to the two semi-cylinders respectively through the two ends of the cylindrical pin.

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