Disassembling and assembling equipment for replacing air inlet casing of engine

Abstract

The invention discloses dismounting and mounting equipment for replacing an air inlet casing of an engine, and relates to the field of aero-engine application, the dismounting and mounting equipment comprises a working platform, a hoisting mechanism, an intermediate casing, an air inlet casing, a spline nut, a spline bolt and a hexagonal groove, one side of the hoisting mechanism is rotatably connected with a cross beam, and a moving mechanism is installed on the side face of the cross beam; the side face of the moving mechanism is provided with an arc-shaped plate and a fixing mechanism, wherein the arc-shaped plate is used for assembling spline nuts and spline bolts. The fixing mechanism is arranged to be used for prefilling the spline bolt and can assist in screwing and assembling the spline bolt and the spline nut, the fixing assembly in the fixing mechanism is used for fixing the spline bolt, and therefore when the spline bolt and the spline nut are installed, the fixing assembly is manually adjusted to enable the spline bolt and the spline nut to be preliminarily engaged; and then the multiple fixing assemblies are driven to rotate synchronously, the assembling speed of the spline bolts and the spline nuts can be increased, and finally workers use the rotating torque spanner for one-to-one proofreading.

Description

Technical Field

[0001] The invention relates to the application field of aviation engines, and in particular to a disassembly and assembly device for replacing an engine air intake casing. Background Art

[0002] An aircraft engine is a highly complex and sophisticated thermal machine. As the heart of an aircraft, it is not only the driving force for the aircraft's flight, but also an important driving force for the development of the aviation industry. Modern aircraft mainly use turbine engines, which are mainly composed of an air intake system, a compressor system, a combustion chamber system, and a turbine system.

[0003] The assembly of aircraft engines usually adopts a modular installation method. The turbojet engine is mainly composed of an intake casing, a combustion chamber casing and a turbine casing. Different casings are usually connected by flange connections. Since each casing of an aircraft engine is large in size and has a certain weight, different casings are assembled with the help of tooling to assist in engine disassembly and assembly, such as a gantry crane, a lifting tractor, etc. The lifting tractor can adjust the height to support the engine, and the gantry crane can be used to transfer some heavier parts. After the different casings of the engine are assembled and spliced, the staff will set multiple sets of bolts and nuts, and then use a special adjustable torque wrench to fix the bolts and nuts to ensure that the torque parameters of each set of bolts and nuts are the same.

[0004] The use of flange connections for assembling different casings of aircraft engines can better ensure the overall strength of the engine, but aircraft engines are large in size, so a large number of bolts and nuts are installed, which makes engine assembly and disassembly for subsequent positioning and maintenance more troublesome. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a disassembly and assembly device for replacing an engine air intake casing to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a disassembly and assembly equipment for replacing an engine intake casing, comprising a working platform, a lifting mechanism, an intermediate casing, an intake casing, a spline nut, a spline bolt and a hexagonal groove, one side of the lifting mechanism is rotatably connected to a crossbeam, and a moving mechanism is installed on the side of the crossbeam, an arc plate is provided on the side of the moving mechanism, and a plurality of groups of nut grooves for embedding spline nuts are provided on the side of the arc plate, a fixing mechanism for clamping spline bolts is movably installed on the side of the moving mechanism, the fixing mechanism comprises an arc frame, and a fixing component is rotatably connected inside the arc frame, and a second driving device is provided on one side of the arc frame, and the fixing component and the second driving device are connected by a gear and a pulley assembly.

[0007] By adopting the above technical solution, a fixing mechanism is set up for pre-loading spline bolts, and the fixing mechanism can assist in the screwing and assembly of spline bolts and spline nuts. The fixing mechanism includes multiple sets of fixing components, and the fixing components are used to fix the spline bolts. The fixing components can drive the spline bolts to rotate by manual adjustment, and can also drive the spline bolts to rotate by electric drive. When installing the spline bolts and spline nuts, the fixing components are first manually adjusted to make the spline bolts and spline nuts initially engage, and then multiple fixing components are driven to rotate synchronously, which can speed up the assembly speed of the spline bolts and spline nuts. Finally, the staff can use a rotating torque wrench to calibrate them one by one.

[0008] The present invention is further configured such that the moving mechanism includes a mounting frame installed on the side of the beam, and a screw rod assembly is provided on the top of the mounting frame, and a slide rail is provided on the top of the arc frame, one end of the screw rod assembly is connected to a first driving device, and the screw rod assembly and the arc frame are threadedly connected, and a slider matching the slide rail is provided at the bottom of the arc frame.

[0009] Preferably, a moving mechanism is provided for adjusting the height of the fixing mechanism, so that the height of the spline bolt and the spline nut engaged in the fixing mechanism can also be adjusted when they are installed and engaged.

[0010] The present invention is further configured as follows: the fixing assembly includes a circular shell rotatably connected to the arc frame, and a plurality of groups of clamping blocks are movably installed inside the circular shell by setting a first limit block, and the tops of the plurality of groups of clamping blocks are all provided with linkage rods, a plurality of groups of fixing rods are arranged inside the circular shell, and the outsides of the plurality of groups of fixing rods are all sleeved with first springs, and the plurality of groups of fixing rods and the plurality of groups of clamping blocks are movably installed correspondingly, and a plurality of groups of strip grooves matching the linkage rods are opened on the top of the circular shell.

[0011] Preferably, a plurality of groups of movably mounted clamping blocks are provided inside the fixing assembly, and the clamping blocks are pushed by the first spring so as to achieve fixed clamping of the spline bolt by the fixing assembly.

[0012] The present invention is further configured such that a circular cover is rotatably connected to the outside of the circular shell, a plurality of groups of second arc grooves matching the linkage rods are provided on the top of the circular cover, and a shifting rod is provided on the top of the circular cover.

[0013] Preferably, a circular cover is arranged outside the circular shell, and a second arc groove is opened on the top of the circular cover. When the circular cover rotates, the second arc groove can be used to push the linkage rod to move, thereby driving the clamping block to move.

[0014] The present invention is further configured such that a sleeve is provided on the top of the circular shell, a threaded rod is rotatably connected inside the sleeve, and a convex block is provided on the bottom of the threaded rod, and the convex block matches the hexagonal groove.

[0015] Preferably, a sleeve is provided, and an internal bolt of the sleeve is connected to a threaded rod, so that rotating the threaded rod can drive the spline bolt in the fixing assembly to rotate.

[0016] The present invention is further configured such that a limiting groove is provided on the side of the sleeve, and a first disc is movably installed on the outside of the sleeve, and a second limiting block matching the limiting groove is provided on the inner side of the first disc, a plurality of separation blocks are provided at the bottom of the first disc, and the separation blocks and the circular shell are movably penetrated, a second spring is provided at the bottom of the first disc, and the second spring is sleeved on the outside of the sleeve.

[0017] Preferably, multiple sets of separation blocks are installed outside the sleeve, and the clamping block and the spline bolt can be separated by the separation blocks, so that the clamping block of the fixing assembly can fix the spline bolt and release the fixation of the spline bolt.

[0018] The present invention is further configured such that a square groove is provided at the top of the threaded rod, and a third spring is arranged inside the square groove, and the top of the third spring is connected to a square rod, and the top of the square rod is connected to a knob, and a plurality of groups of connecting columns are provided at the bottom of the knob, and a second disc is connected to the bottom of the plurality of groups of connecting columns.

[0019] Preferably, the knob is arranged to drive the threaded rod to rotate while squeezing the first disc, so that the spline bolt can be released from the fixed state at any time, and the knob can drive the threaded rod to rotate to drive the spline bolt to rotate.

[0020] The present invention is further configured such that an outer gear ring is provided on the outside of the circular shell, a plurality of fixed components are provided, and the plurality of fixed components are evenly distributed inside the arc frame, and the plurality of fixed components are located inside the arc frame and are connected by a plurality of gear transmission sets, and a group of the gears is connected by a pulley assembly and a second drive device.

[0021] Preferably, an outer gear ring is provided on the outside of the circular shell, and multiple groups of fixed components are connected to each other through gears, and the second driving device can simultaneously drive the multiple groups of fixed components to rotate synchronously.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. The present invention provides a fixing mechanism for pre-loading spline bolts, which can assist in the screwing and assembly of spline bolts and spline nuts. The fixing mechanism includes multiple sets of fixing components, which are used to fix the spline bolts. The fixing components can drive the spline bolts to rotate by manual adjustment, or by electric drive. When the spline bolts and spline nuts are installed, the fixing components are first manually adjusted to make the spline bolts and the spline nuts initially engage, and then the multiple fixing components are driven to rotate synchronously, which can speed up the assembly speed of the spline bolts and the spline nuts. Finally, the staff can use a rotating torque wrench to calibrate them one by one.

[0024] 2. The present invention can embed multiple groups of spline nuts by setting an arc plate, and multiple groups of nut grooves matching the spline nuts are opened on the side of the arc plate, so that the arc plate used to install the spline nuts can match the fixing mechanism, thereby achieving the purpose of quickly assembling spline nuts and spline bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the installation of the crossbeam and the moving mechanism of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the mobile mechanism of the present invention;

[0028] Figure 4 It is a schematic diagram of the installation of the arc frame and the slider of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure of the fixing mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the installation of the spline bolt and the spline nut of the present invention;

[0032] Figure 8 It is a schematic diagram of the overall structure of the fixing assembly of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the fixing assembly of the present invention;

[0034] Fig.10 It is a schematic diagram of the distribution of the circular housing, the first disc and the knob of the present invention;

[0035] Fig.11 It is a schematic diagram of the circular cover structure of the present invention;

[0036] Fig.12It is a schematic diagram of the installation of the circular housing and multiple groups of clamping blocks of the present invention;

[0037] Fig.13 A top view of a fixing assembly of the present invention;

[0038] Fig.14 For the present invention Fig.13 A in the enlarged view;

[0039] Fig.15 It is a schematic diagram of the installation of the circular housing, sleeve and second spring of the present invention;

[0040] Fig.16 It is a schematic diagram of the installation of the first disc, the second limiting block, the separation block and the second spring of the present invention;

[0041] Fig.17 It is a schematic diagram of the installation of the knob, the connecting column and the second disc of the present invention;

[0042] Fig.18 It is a schematic diagram of the connection between the square rod, the third spring and the threaded rod of the present invention.

[0043] Description of reference numerals:

[0044] 1. working platform; 2. lifting mechanism; 3. intermediate casing; 4. air intake casing; 5. crossbeam; 6. moving mechanism; 601. mounting frame; 602. screw assembly; 603. first driving device; 604. slide rail; 7. arc plate; 8. nut groove; 9. fixing mechanism; 901. arc frame; 902. slider; 903. gear; 904. second driving device; 905. pulley assembly; 906. first arc groove; 10. fixing assembly; 1001. circular shell; 1002. first limit block; 1003. clamping block; 1004. linkage rod; 1005. fixing rod; 10 06, first spring; 1007, strip groove; 1008, round cover; 1009, second arc groove; 1010, lever; 1011, outer gear ring; 1012, sleeve; 1013, threaded rod; 1014, bump; 1015, limit groove; 1016, first disc; 1017, second limit block; 1018, separation block; 1019, second spring; 1020, square groove; 1021, third spring; 1022, square rod; 1023, knob; 1024, connecting column; 1025, second disc; 11, spline nut; 12, spline bolt; 13, hexagonal groove. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] The following describes an embodiment of the present invention based on its overall structure.

[0047] See also Figure 1-18 , a disassembly and assembly equipment for replacing an engine intake casing, comprising a working platform 1, a lifting mechanism 2, an intermediate casing 3, an intake casing 4, a spline nut 11, a spline bolt 12 and a hexagonal groove 13, the spline nut 11 and the spline bolt 12 are used to connect and fix the intermediate casing 3 and the intake casing 4, the lifting mechanism 2 is usually composed of a clamping device (for fixing and clamping an aircraft engine), a lifting device (for adjusting the height of the clamped engine), a flipping device (for adjusting the clamped engine to a horizontal or vertical position), and a rotating support table (for driving the engine to rotate), one side of the lifting mechanism 2 is rotatably connected to a crossbeam 5, and a moving mechanism 6 is installed on the side of the crossbeam 5, and an arc plate 7 is arranged on the side of the moving mechanism 6, and the side of the arc plate 7 is opened A plurality of groups of nut grooves 8 for embedding spline nuts 11 are provided, and a fixing mechanism 9 for clamping spline bolts 12 is movably installed on the side of the moving mechanism 6, and the moving mechanism 6 is used to drive the fixing mechanism 9 to adjust the height, and the fixing mechanism 9 includes an arc frame 901, and the internal rotation of the arc frame 901 is connected with a fixing component 10, and a second driving device 904 is provided on one side of the arc frame 901, and the fixing component 10 and the second driving device 904 are connected by a gear 903 and a pulley assembly 905. The arc plate 7 is used to embed the spline nut 11, and the fixing component 10 in the fixing mechanism 9 is used to engage the spline bolt 12, so that the arc plate 7 and the fixing mechanism 9 cooperate with each other to realize the installation of the spline nut 11 and the spline bolt 12.

[0048] In the above embodiments, please refer to Figure 3 and Figure 4 The moving mechanism 6 includes a mounting frame 601 installed on the side of the beam 5, and a screw assembly 602 is arranged on the top of the mounting frame 601, the screw assembly 602 is composed of two sets of screws and a transmission belt, and a slide rail 604 is arranged on the top of the arc frame 901, one end of the screw assembly 602 is connected to a first driving device 603, and the screw assembly 602 and the arc frame 901 are threadedly connected, and a slider 902 matching the slide rail 604 is arranged at the bottom of the arc frame 901. The moving mechanism 6 is used to adjust the height of the fixing mechanism 9, so that the spline bolt 12 and the spline nut 11 engaged in the fixing mechanism 9 can also be height-adjusted when installed and engaged.

[0049] In the above embodiments, please refer to Figure 5 and Figure 6The fixing component 10 includes a circular shell 1001 rotatably connected to the arc frame 901, and a plurality of clamping blocks 1003 are movably installed inside the circular shell 1001 by setting a first limit block 1002, and a linkage rod 1004 is set on the top of the plurality of clamping blocks 1003, and a plurality of fixing rods 1005 are set inside the circular shell 1001, and a first spring 1006 is sleeved on the outside of the plurality of fixing rods 1005, and the plurality of fixing rods 1005 and the plurality of clamping blocks 1003 are movably installed correspondingly, and a plurality of strip grooves 1007 matching the linkage rod 1004 are opened on the top of the circular shell 1001. By setting a plurality of movably installed clamping blocks 1003 inside the fixing component 10, the first spring 1006 is used to push the clamping blocks 1003 so as to realize the fixing and clamping of the spline bolt 12 by the fixing component 10.

[0050] In the above embodiments, please refer to Fig.11 The circular shell 1001 is externally rotatably connected with a circular cover 1008, and a plurality of second arc grooves 1009 matching the linkage rod 1004 are opened on the top of the circular cover 1008, and a lever 1010 is arranged on the top of the circular cover 1008. By arranging the circular cover 1008 on the outside of the circular shell 1001 and opening the second arc groove 1009 on the top of the circular cover 1008, when the circular cover 1008 rotates, the second arc groove 1009 can be used to push the linkage rod 1004 to move, thereby driving the clamping block 1003 to move.

[0051] In the above embodiments, please refer to Fig.10 and Fig.15 A sleeve 1012 is provided on the top of the circular shell 1001, and the inner part of the sleeve 1012 is rotatably connected to a threaded rod 1013, and a protrusion 1014 is provided on the bottom of the threaded rod 1013, and the protrusion 1014 matches the hexagonal groove 13. By providing the sleeve 1012, the inner thread of the sleeve 1012 is connected to the threaded rod 1013, and then rotating the threaded rod 1013 can drive the spline bolt 12 in the fixing assembly 10 to rotate.

[0052] In the above embodiments, please refer to Fig.15 and Fig.16A limiting groove 1015 is provided on the side of the sleeve 1012, and a first disc 1016 is movably installed on the outside of the sleeve 1012, and a second limiting block 1017 matching the limiting groove 1015 is provided on the inner side of the first disc 1016, and a plurality of separation blocks 1018 are provided at the bottom of the first disc 1016, and the separation blocks 1018 and the circular shell 1001 are movably penetrated, a second spring 1019 is provided at the bottom of the first disc 1016, and the second spring 1019 is sleeved on the outside of the sleeve 1012, by installing a plurality of separation blocks 1018 on the outside of the sleeve 1012, the separation blocks 1018 can be used to separate the clamping block 1003 and the spline bolt 12, so that the clamping block 1003 of the fixing assembly 10 can fix the spline bolt 12, and can also release the fixation of the spline bolt 12.

[0053] In the above embodiments, please refer to Fig.17 and Fig.18 A square groove 1020 is provided at the top of the threaded rod 1013, and a third spring 1021 is arranged inside the square groove 1020, and a square rod 1022 is connected to the top of the third spring 1021, and a knob 1023 is connected to the top of the square rod 1022, and a plurality of groups of connecting columns 1024 are arranged at the bottom of the knob 1023, and a second disc 1025 is connected to the bottom of the plurality of groups of connecting columns 1024. The knob 1023 is arranged to drive the threaded rod 1013 to rotate and squeeze the first disc 1016 at the same time, so that the spline bolt 12 can be released from the fixed state at any time, and then the knob 1023 drives the threaded rod 1013 to rotate, which can drive the spline bolt 12 to rotate.

[0054] In the above embodiments, please refer to Figure 6 and Fig.15 An outer gear ring 1011 is provided on the outside of the circular shell 1001, and multiple groups of fixed components 10 are provided, and the multiple groups of fixed components 10 are evenly distributed inside the arc frame 901, and the multiple groups of fixed components 10 are located inside the arc frame 901 and are connected by setting multiple groups of gears 903 for transmission. One group of gears 903 is connected to the second driving device 904 for transmission by setting a pulley assembly 905. By setting an outer gear ring 1011 on the outside of the circular shell 1001, multiple groups of fixed components 10 are connected to each other for transmission by setting gears 903, and the second driving device 904 can simultaneously drive the multiple groups of fixed components 10 to rotate synchronously.

[0055] When the present invention is in specific operation: the aircraft engine is composed of multiple parts, and the bottom of the intermediate casing 3 is also modularly installed with the engine's combustion casing and turbine casing by means of flange connection. The lifting mechanism 2 is a common auxiliary installation equipment in the application field of aircraft engines, and is usually composed of a clamping device (for fixing and clamping the aircraft engine), a lifting device (for adjusting the height of the clamped engine), a flipping device (for adjusting the clamped engine to horizontal or vertical), and a rotating support platform (for driving the engine to rotate).

[0056] When the staff needs to install the air intake casing 4, they first use the lifting mechanism 2 to adjust the angle and height of the intermediate casing 3, and then use the gantry crane to lift and transport the air intake casing 4 to the top of the intermediate casing 3, and ensure that the docking holes of the intermediate casing 3 and the air intake casing 4 are aligned. The staff will insert the multiple spline nuts 11 that need to be installed into the nut groove 8 in sequence, and then the staff will use one hand to move the lever 1010 while the other hand will insert the spline bolt 12 into the circular shell 1001. When the lever 1010 is moved, the lever 1010 moves along the first arc groove 906, and the lever 1010 drives the circular cover 1008 to rotate, and then the second arc groove 1009 will squeeze the linkage rod 1004, causing the linkage rod 1004 to move along the strip groove 1007, that is, the linkage rod 1004 will drive the clamping block 1003 to move, and the clamping block 1003 will slide on the outside of the fixed rod 1005 and compress the first spring 1006, so that the multiple groups of clamping blocks 1003 will move away from each other. At this time, the spline bolt 12 can be smoothly embedded in the circular shell 1001. When the spline bolt 12 is embedded, ensure that the hexagonal groove 13 at the end of the spline bolt 12 is sleeved on the protrusion 1014, and then release the lever 1010. Under the resetting action of the first spring 1006, the multiple groups of clamping blocks 1003 will approach each other to clamp the spline bolt 12.

[0057] Next, the pre-loading work of the spline nut 11 and the spline bolt 12 is completed, and the staff rotates the crossbeam 5 so that the moving mechanism 6 at its end is close to the connection between the intermediate casing 3 and the air intake casing 4, and then starts the first driving device 603 to drive the screw assembly 602 to work, and uses the screw principle to further adjust the height of the fixing mechanism 9. Previously, the position angle of the intermediate casing 3 and the air intake casing 4 has been adjusted by the lifting mechanism 2, and then the docking holes installed in the intermediate casing 3 and the air intake casing 4 also correspond to the spline nut 11 and the spline bolt 12. For a set of fixing components 10, the staff first manually presses its knob 1023, so that the knob 1023 drives the square rod 1022 to descend, and then the square rod 1022 shrinks into the square groove 1020. The third spring 1021 is compressed inside, and at the same time, the knob 1023 descends, driving the connecting column 1024 to descend, so that the second disc 1025 connected to the connecting column 1024 descends and squeezes the first disc 1016. The first disc 1016 will compress the second spring 1019 and push the multiple groups of separation blocks 1018 into the interior of the circular shell 1001. The multiple groups of separation blocks 1018 will be squeezed and inserted between the clamping block 1003 and the spline bolt 12. The contact surface of the clamping block 1003 with the separation block 1018 is set to an arc shape, and then the separation block 1018 will separate the multiple groups of clamping blocks 1003 and the spline bolt 12, so that the multiple groups of clamping blocks 1003 no longer clamp the spline bolt 12, and the inner wall of the separation block 1018 does not contact the spline bolt 12.

[0058] The staff keeps the pressing force of the knob 1023 unchanged and turns the knob 1023 at the same time, and then the knob 1023 drives the threaded rod 1013 to rotate through the square rod 1022, and the second disk 1025 slides against the top of the first disk 1016, and the threaded rod 1013 and the sleeve 1012 are threadedly connected, and then the threaded rod 1013 will slowly move into the circular shell 1001, and then the threaded rod 1013 drives the protrusion 1014 to rotate and move at the same time, which can drive the spline bolt 12 sleeved on the outside of the protrusion 1014 to rotate and move. The whole process is that the staff manually starts the fixing assembly 10 to rotate the spline bolt 12, so that the spline bolt 12 can be initially engaged with the corresponding spline nut 11, and wait for the spline nut 11 and After the spline bolt 12 is initially engaged, release the pressed and rotated knob 1023. Under the resetting action of the third spring 1021 and the second spring 1019, the separation block 1018 and the knob 1023 are reset, and the clamping block 1003 will also re-clamp the spline bolt 12 under the resetting action of the first spring 1006. At this time, since the spline bolt 12 and the spline nut 11 are engaged and moved a distance, multiple sets of clamping blocks 1003 can still clamp the tail of the spline bolt 12. Here, when the staff turns the knob 1023 to initially engage and install the spline bolt 12, it is necessary to turn it the same number of turns as required to ensure that the degree of engagement of each set of spline nuts 11 and spline bolts 12 is the same, which can also ensure that the clamping block 1003 clamps the spline groove of the spline bolt 12.

[0059] According to the same installation method as above, the spline bolts 12 in the multiple fixing components 10 are preliminarily engaged and installed, and then the second driving device 904 is started to drive the gear 903 connected thereto to rotate through the pulley assembly 905, and then the outer gear rings 1011 on the sides of the multiple sets of fixing components 10 and the multiple sets of gears 903 are engaged with each other for transmission, and then the multiple sets of fixing components 10 rotate in the same direction for a set number of circles. The rotation of the fixing components 10 will drive the spline bolts 12 clamped inside thereof to rotate, so that each set of spline nuts 11 and spline bolts 12 are fully engaged. In the process of the engagement of the spline nuts 11 and the spline bolts 12, due to the spline nuts 11 and the spline bolts 12, The key bolt 12 will move further, so it is necessary to use an electronic control program to control the start-up moving mechanism 6 to drive the fixing mechanism 9 to descend a short distance. After the spline nuts 11 and spline bolts 12 for installing the intermediate casing 3 and the air intake casing 4 are installed, the first driving device 603 is driven to raise the fixing mechanism 9, and then each set of fixing components 10 will be pulled out from the tail of the spline bolt 12. The rotating crossbeam 5 will move the fixing mechanism 9 to one side, and one staff member will continue to load the spline nuts 11 and spline bolts 12, and another staff member will use a rotating torque wrench to further calibrate the installed spline nuts 11 and spline bolts 12.

[0060] When the staff needs to disassemble the intermediate casing 3 and the air intake casing 4, they use multiple sets of fixing components 10 to fix the multiple sets of spline bolts 12 respectively according to the above steps, and then start the fixing mechanism 9 to drive the multiple sets of fixing components 10 to rotate in the opposite direction, so as to loosen the multiple sets of spline nuts 11 and spline bolts 12.

[0061] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A disassembly and assembly device for replacing an engine air intake casing, comprising a working platform (1), a lifting mechanism (2), an intermediate casing (3), an air intake casing (4), a spline nut (11), a spline bolt (12) and a hexagonal slot (13), characterized in that: One side of the lifting mechanism (2) is rotatably connected to a crossbeam (5), and a moving mechanism (6) is installed on the side of the crossbeam (5). The side of the moving mechanism (6) is provided with an arc plate (7), and the side of the arc plate (7) is provided with a plurality of nut grooves (8) for clamping spline nuts (11). A fixing mechanism (9) for clamping spline bolts (12) is movably installed on the side of the moving mechanism (6). The fixing mechanism (9) includes an arc frame (901), and the interior of the arc frame (901) is rotatably connected to a fixing assembly (10), and a second driving device (904) is provided on one side of the arc frame (901). The fixing assembly (10) and the second driving device (904) are connected in transmission by a gear (903) and a pulley assembly (905).

2. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: The moving mechanism (6) comprises a mounting frame (601) mounted on the side of the crossbeam (5), a screw assembly (602) is arranged on the top of the mounting frame (601), and a slide rail (604) is arranged on the top of the arc frame (901), one end of the screw assembly (602) is connected to a first driving device (603), the screw assembly (602) and the arc frame (901) are threadedly connected, and a slider (902) matching the slide rail (604) is arranged at the bottom of the arc frame (901).

3. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: The fixing assembly (10) comprises a circular shell (1001) rotatably connected to the arc frame (901), and a plurality of groups of clamping blocks (1003) are movably mounted inside the circular shell (1001) by setting a first limit block (1002), and the tops of the plurality of groups of clamping blocks (1003) are all provided with linkage rods (1004), a plurality of groups of fixing rods (1005) are arranged inside the circular shell (1001), and the outsides of the plurality of groups of fixing rods (1005) are all sleeved with first springs (1006), and the plurality of groups of fixing rods (1005) and the plurality of groups of clamping blocks (1003) are movably mounted correspondingly, and a plurality of groups of strip grooves (1007) matching the linkage rods (1004) are provided on the top of the circular shell (1001).

4. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: The circular shell (1001) is rotatably connected to the outside with a circular cover (1008), and the top of the circular cover (1008) is provided with a plurality of groups of second arc grooves (1009) matching the linkage rod (1004), and the top of the circular cover (1008) is provided with a shifting rod (1010).

5. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: A sleeve (1012) is provided on the top of the circular shell (1001), and a threaded rod (1013) is rotatably connected inside the sleeve (1012), and a protrusion (1014) is provided on the bottom of the threaded rod (1013), and the protrusion (1014) matches the hexagonal groove (13).

6. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: A limiting groove (1015) is provided on the side of the sleeve (1012), and a first disc (1016) is movably installed on the outside of the sleeve (1012), and a second limiting block (1017) matching the limiting groove (1015) is provided on the inner side of the first disc (1016), a plurality of separation blocks (1018) are provided at the bottom of the first disc (1016), and the separation blocks (1018) and the circular shell (1001) are movably interwoven, a second spring (1019) is provided at the bottom of the first disc (1016), and the second spring (1019) is sleeved on the outside of the sleeve (1012).

7. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: The threaded rod (1013) is provided with a square groove (1020) at the top, and a third spring (1021) is arranged inside the square groove (1020), and the top of the third spring (1021) is connected to a square rod (1022), the top of the square rod (1022) is connected to a knob (1023), and the bottom of the knob (1023) is provided with multiple groups of connecting columns (1024), and the bottoms of the multiple groups of connecting columns (1024) are connected to a second disc (1025).

8. The disassembly and assembly equipment for replacing an engine air intake casing according to claim 1, characterized in that: An outer gear ring (1011) is arranged outside the circular shell (1001), a plurality of the fixing components (10) are arranged, and the plurality of fixing components (10) are evenly distributed inside the arc frame (901), and the plurality of fixing components (10) are located inside the arc frame (901) and are transmission-connected by arranging a plurality of gears (903), and a group of the gears (903) is transmission-connected to the second driving device (904) by arranging a pulley assembly (905).

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