A method for installing guide rails on a maintenance hangar door

Abstract

The present application relates to a method for installing the upper rail of a maintenance hangar door, which belongs to the technical field of hangar door installation, and includes the following steps: S1, calculating the distance between the roof and the upper rail connection point during installation, and the spacing between adjacent upper rails; S2, supporting the upper rail to the specified installation position, and checking the horizontality of the upper rail, the spacing between adjacent upper rails, and the height position of the upper rail; S3, after the proofreading, installing the offset mechanism between the roof and the upper rail to provide the upper rail with a force to offset the deformation of the roof; S4, installing the counter-support mechanism between the roof and the upper rail, so that when the upper rail is subjected to the force of roof deformation, it plays an upward counter-support role for the roof; S5, again checking the horizontality of the upper rail, the spacing between adjacent upper rails, and the height position of the upper rail. The present application has the effect of offsetting the deformation of the roof grid on the upper rail as much as possible to ensure the normal opening and closing of the hangar door.

Description

Technical Field

[0001] The present application relates to the technical field of hangar door installation, and in particular to a method for installing guide rails on a hangar door for maintenance. Background Art

[0002] Aircraft hangars are short for hangars. They are large-span single-story buildings for aircraft maintenance and are the main buildings in aircraft maintenance areas. Hangar doors are generally horizontally pushed and pulled, and the door leaves are composed of multiple door panels. Different materials such as steel-aluminum combination or aluminum can be selected. The combination of steel bottom tail plate and aluminum window frame, double-layer steel bottom tail plate and anodized aluminum alloy window frame constitute the door structure of the extra-large hangar door.

[0003] A lower guide rail fixed on the ground is arranged below the hangar door body, and an upper guide rail fixed below the roof grid or the gate truss is arranged above the hangar door body.

[0004] Since the maintenance hangar is limited by the size of the aircraft, the roof span is relatively large. The hangar roof is a spatial system composed of steel structural members that bear axial forces. Therefore, under the action of long-term deadweight, roof live load and other loads, it will produce a certain deformation over time. The upper guide rail is fixed to the roof, so the position of the upper guide rail will change or deform, eventually making the hangar door unable to open and close. Summary of the invention

[0005] In order to offset the deformation effect of the roof grid on the upper guide rail as much as possible and ensure the normal opening and closing of the hangar door, the present application provides a method for installing the upper guide rail of the hangar door for maintenance.

[0006] The present application provides a method for installing a guide rail on a maintenance hangar door using the following technical solution:

[0007] A method for installing a guide rail on a maintenance hangar door comprises the following steps:

[0008] S1. Calculate the distance between the roof and the upper rail connection during installation, as well as the spacing between adjacent upper rails;

[0009] S2. Support the upper guide rail to the designated installation position, and check the horizontality of the upper guide rail, the spacing between adjacent upper guide rails, and the height position of the upper guide rail;

[0010] S3. After checking, the offset mechanism is installed between the roof and the upper guide rail to provide the upper guide rail with a force to offset the deformation of the roof;

[0011] S4. Install the counter-support mechanism between the roof and the upper guide rail so that when the upper guide rail is subjected to the force of roof deformation, it can play an upward counter-support role for the roof;

[0012] S5. Check the horizontality of the upper guide rail, the spacing between adjacent upper guide rails, and the height position of the upper guide rail again.

[0013] By adopting the above technical solution, during installation, the position of the upper guide rail is first checked to ensure the installation accuracy. After the position is confirmed, the upper guide rail is first supported and temporarily fixed by other tools, and then the offset mechanism and the anti-support mechanism are installed between the roof and the upper guide rail. At this time, the temporary support tool can be removed and the position of the installed upper guide rail is checked again; if the roof is deformed and deflected, the offset mechanism can provide the upper guide rail with a force to offset the deformation of the roof to avoid deformation and deflection of the upper guide rail as much as possible, and the anti-support mechanism can provide an upward supporting effect on the roof when the roof is deformed and deflected, thereby improving the safety and stability of the upper guide rail, and finally achieving the effect of offsetting the deformation of the roof grid on the upper guide rail as much as possible to ensure the normal opening and closing of the hangar door.

[0014] Optionally, all steps S1-S5 are performed when the roof is not hoisted.

[0015] By adopting the above technical solution, the construction height of the upper guide rail can be reduced, which makes the installation of the upper guide rail more convenient. After the upper guide rail is installed on the roof, the roof and the upper guide rail are hoisted together.

[0016] Optionally, in S4, the offsetting mechanism includes a telescopic rod and a one-way positioning assembly, the telescopic rod includes an outer tube and an inner rod, the top end of the outer tube is hinged on the roof, the top end of the inner rod is inserted in the outer tube, and the bottom end is hinged to the upper surface of the upper guide rail, the telescopic rod is vertically arranged, and the one-way positioning assembly allows the telescopic rod to retract, so that the telescopic rod cannot be extended.

[0017] By adopting the above technical solution, if the roof is deformed and deflected, the top and bottom ends of the telescopic rod are hinged, which can make the roof deform and deflect at different angles. The telescopic rod can be contracted, and the upper guide rail will not deform and deflect, which has the function of offsetting the deformation of the roof.

[0018] Optionally, an inclined brace is hinged between the roof and the outer tube.

[0019] By adopting the above technical solution, the setting of the diagonal bracing rod can, on the one hand, resist the force of roof deformation and deflection, and on the other hand, can prevent the telescopic rod from rotating as much as possible, thereby improving the stability of the upper guide rail.

[0020] Optionally, the one-way positioning assembly includes a pin, a ratchet, a connecting rope, a connecting spring and a limit block. The side wall of the outer tube is provided with a socket for inserting the pin. The ratchet is located inside the outer tube and fixedly sleeved on the pin. The connecting rope is fixed between the pin and the inner rod. The inner wall of the outer tube is provided with a mounting groove. The connecting spring is fixed in the mounting groove. The limit block slides in the mounting groove and is fixed to the connecting spring. One side of the limit block is arranged in an arc shape and cooperates with the outer arc surface of the ratchet. The limit block allows the ratchet to rotate unidirectionally. When the ratchet rotates, the connecting rope pulls the inner rod upward.

[0021] By adopting the above technical solution, when installing the telescopic rod, since the distance between the roof and the upper guide rail has been determined, the pin shaft is rotated to make the connecting rope pull the inner rod into the outer tube, and at the same time the ratchet rotates and squeezes the limit block. After the telescopic rod is installed, the telescopic rod cannot be stretched due to the restriction of the ratchet by the limit block, thereby minimizing the deformation and deflection of the upper guide rail.

[0022] Optionally, the pin shaft can be laterally displaced in the socket to cause the ratchet wheel to be misaligned with the limit block.

[0023] By adopting the above technical solution, the pin shaft is pushed to make it move horizontally, so that the ratchet wheel and the limit block can be misaligned. At this time, the pin shaft is rotated again to shrink or extend the telescopic rod, which is convenient for repairing or replacing the telescopic rod.

[0024] Optionally, the counter-support mechanism includes an installation box, a pressure column, a lever and a top column. The installation box is fixed on the upper surface of the upper guide rail. Two receiving grooves with interconnected bottoms are provided on the upper surface of the installation box. The top end of the pressure column is connected to the roof, and the bottom end is inserted into the receiving groove. The top column is inserted into another receiving groove, and the top end of the top column is connected to the roof. The lever is rotatably connected to the connecting point at the bottom of the two receiving grooves, and the bottom ends of the pressure column and the top column are respectively abutted against the corresponding ends of the lever.

[0025] By adopting the above technical solution, if the roof is deformed and deflected and presses the pressure column or the top column downward, the pressure column or the top column will press the lever downward to push the top column or the pressure column upward to provide upward support for the roof, reduce the deformation and deflection of the roof, and thus make the upper guide rail safer and more stable.

[0026] Optionally, a support spring is fixed to the bottom ends of the two accommodating grooves, and the top end of the support spring is fixed below the corresponding end of the lever.

[0027] By adopting the above technical solution, when the lever rotates in any direction, it will drive the two support springs to expand and contract. The support springs can buffer the deformation and deflection of the roof and help the anti-support mechanism to support the roof upward.

[0028] Optionally, the bottom ends of the pressure column and the top column are both spherical.

[0029] By adopting the above technical solution, the friction between the pressure column and the lever, and between the top column and the lever can be reduced, thereby extending the service life.

[0030] Optionally, the top ends of the compression columns and top columns are hinged to the roof.

[0031] By adopting the above technical solution, it can be applicable to deformation of the roof in different directions, thereby improving applicability.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. If the roof is deformed and deflected, the offset mechanism can provide the upper guide rail with a force to offset the deformation of the roof, so as to avoid the deformation and deflection of the upper guide rail as much as possible. In addition, the anti-support mechanism can support the roof upward when the roof is deformed and deflected, so as to offset the deformation of the roof grid on the upper guide rail as much as possible, so as to ensure the normal opening and closing of the hangar door;

[0034] 2. If the roof is deformed and deflected, the top and bottom ends of the telescopic rod are hinged, which can make the roof deform and deflect at different angles. The telescopic rod can be retracted, and the upper guide rail will not deform and deflect, which has the function of offsetting the deformation of the roof;

[0035] 3. If the roof deforms and deflects and presses the pressure column or top column downward, the pressure column or top column will press the lever downward to push the top column or pressure column upward to provide upward support for the roof, reduce the deformation and deflection of the roof, and make the upper guide rail safer and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a front view of an embodiment of the present application;

[0037] Figure 2 is a cross-sectional view of an embodiment of the present application;

[0038] Figure 3 yes Figure 2 Part A in the middle is a partial enlarged view showing the one-way positioning component.

[0039] In the figure, 1, roof; 2, upper guide rail; 3, offset mechanism; 31, telescopic rod; 311, outer tube; 3111, socket; 3112, mounting groove; 312, inner rod; 32, one-way positioning assembly; 321, pin shaft; 322, ratchet; 323, connecting rope; 324, connecting spring; 325, limit block; 4, diagonal support rod; 5, anti-support mechanism; 51, mounting box; 511, receiving groove; 512, support spring; 52, pressure column; 53, lever; 54, top column. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-3 This application is described in further detail.

[0041] The embodiment of the present application discloses a method for installing a guide rail on a maintenance hangar door.

[0042] A method for installing a guide rail on a maintenance hangar door comprises the following steps:

[0043] S1. Calculate the distance between the connection point of the roof 1 and the upper guide rail 2, as well as the spacing between adjacent upper guide rails 2 during installation.

[0044] S2. Support the upper guide rail 2 to the designated installation position, and calibrate the horizontality of the upper guide rail 2, the spacing between adjacent upper guide rails 2, and the height position of the upper guide rail 2.

[0045] S3. Reference Figure 1 and Figure 2 After checking, the offset mechanism 3 is installed between the roof 1 and the upper guide rail 2: the offset mechanism 3 includes a plurality of telescopic rods 31 vertically connected between the roof 1 and the upper guide rail 2, and a one-way positioning assembly 32 for making the telescopic rods 31 retractable but not extendable; the telescopic rod 31 includes an outer tube 311 hinged to the roof 1 at the top and an inner rod 312 hinged to the upper guide rail 2 at the bottom, and the top of the inner rod 312 is inserted into the outer tube 311; an inclined diagonal brace 4 is hinged between the roof 1 and one side of the outer tube 311 near the bottom. If the roof 1 deforms and deflects, the outer tube 311 will move downward, and the hinged telescopic rod 31 can adapt to the deformation of the roof 1 in different directions to improve the stability of the upper guide rail 2, while the diagonal brace 4 can improve the stability of the telescopic rod 31 and has the ability to resist the deformation and deflection of the roof 1.

[0046] refer to Figure 1 and Figure 3The outer tube 311 has a plug hole 3111 formed horizontally on one side, and a mounting groove 3112 formed horizontally on one side of the outer tube 311. The one-way positioning assembly 32 includes a pin shaft 321 inserted in the plug hole 3111, a ratchet 322 located in the outer tube 311 and coaxially fixed on the pin shaft 321, a connecting rope 323 located in the outer tube 311 and fixed between the pin shaft 321 and the inner rod 312, a connecting spring 324 horizontally fixed in the mounting groove 3112, and a limit block 325 slidably connected to the opening of the mounting groove 3112 and fixed to the connecting spring 324; when the connecting spring 324 is in a natural state, a part of the limit block 325 is located outside the mounting groove 3112, and the limit block 325 is arranged in an arc shape toward one side of the outer arc surface of the ratchet 322, and cooperates with the outer arc surface of the ratchet 322, so that the ratchet 322 can only rotate in one direction. At this time, the connecting rope 323 pulls the inner rod 312 to move the outer tube 311 downward. The pin shaft 321 can be laterally moved in the insertion hole 3111. When the pin shaft 321 is laterally moved, the ratchet wheel 322 and the limit block 325 can be misaligned. At this time, the ratchet wheel 322 can rotate in both positive and negative directions.

[0047] When the ratchet 322 cooperates with the stop block 325, the pin 321 is rotated to shrink the telescopic rod 31, so that the telescopic rod 31 can be installed between the roof 1 and the upper guide rail 2; after the pin 321 is moved to displace the ratchet 322 and the stop block 325, the telescopic rod 31 can be extended, so that the length of the telescopic rod 31 matches the installation distance between the roof 1 and the upper guide rail 2, thereby improving the disassembly and assembly efficiency of the telescopic rod 31. After the telescopic rod 31 is installed, the stop block 325 restricts the ratchet 322, and the telescopic rod 31 cannot be extended, thereby minimizing the deformation and deflection of the upper guide rail 2, thereby improving the stability of the upper guide rail 2, and ensuring the normal opening and closing of the hangar door as much as possible.

[0048] S4. References Figure 1 and Figure 2 , install the anti-support mechanism 5 between the roof 1 and the upper guide rail 2: the anti-support mechanism 5 includes an installation box 51, a pressure column 52, a lever 53 and a top column 54, the installation box 51 is vertically fixed on the upper surface of the upper guide rail 2, and the top surface of the installation box 51 is vertically opened with two bottom-connected receiving grooves 511, the pressure column 52 and the top column 54 are respectively vertically inserted in the corresponding receiving grooves 511, and the top ends of the pressure column 52 and the top column 54 are hinged to the roof 1, the lever 53 is rotatably connected to the bottom connection of the two receiving grooves 511 and is in a horizontal state, the bottom ends of the pressure column 52 and the top column 54 are both abutted against the corresponding ends of the lever 53, and the bottom ends of the pressure column 52 and the top column 54 are both spherical, and support springs 512 are vertically fixed below the two ends of the lever 53.

[0049] The top ends of the pressure column 52 and the top column 54 are both hinged, which can adapt to the deformation of the roof 1 in different directions. If the pressure column 52 moves downward under pressure, the lever 53 drives the top column 54 to move upward to provide an upward supporting force for the roof 1. Similarly, the stability of the upper guide rail 2 is ultimately improved to ensure the normal opening and closing of the hangar door as much as possible.

[0050] S5. After the offset mechanism 3 and the counter-support mechanism 5 are installed, the horizontality of the upper guide rail 2, the spacing between adjacent upper guide rails 2, and the height position of the upper guide rail 2 are checked again.

[0051] The above installation process is carried out when the roof is not hoisted, so as to reduce the height of the upper guide rail 2 during installation and improve the convenience of installation of the upper guide rail 2; after the final verification of the horizontality of the upper guide rail 2 after installation, the spacing between adjacent upper guide rails 2, and the height position of the upper guide rail 2, the roof and the upper guide rail 2 can be hoisted together; after the hoisting is completed, if the roof 1 is deformed and deflected due to long-term deadweight or other factors, the offset mechanism 3 offsets the deformation of the roof 1 to prevent the lower guide rail from following the deformation as much as possible. At the same time, the anti-support mechanism 5 provides an upward supporting force for the roof 1 after being subjected to pressure, so as to improve the safety of the roof 1 and the stability of the upper guide rail 2, and to ensure the normal opening and closing of the hangar door as much as possible.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for installing guide rails on a maintenance hangar door. Features: The following steps are involved: S1. Calculate the distance between the connection point of the roof (1) and the upper guide rail (2) during installation, and the spacing between adjacent upper guide rails (2); S2, supporting the upper guide rail (2) to the designated installation position, and calibrating the horizontality of the upper guide rail (2), the spacing between adjacent upper guide rails (2), and the height position of the upper guide rail (2); S3. After verification, the offset mechanism (3) is installed between the roof (1) and the upper guide rail (2) to provide the upper guide rail (2) with a force to offset the deformation of the roof (1); S4, installing the counter-support mechanism (5) between the roof (1) and the upper guide rail (2), so that when the upper guide rail (2) is subjected to the force of deformation of the roof (1), it plays an upward counter-support role for the roof (1); S5, again calibrating the horizontality of the upper guide rail (2), the spacing between adjacent upper guide rails (2), and the height position of the upper guide rail (2); In S4, the offset mechanism (3) comprises a telescopic rod (31) and a one-way positioning assembly (32), the telescopic rod (31) comprises an outer tube (311) and an inner rod (312), the top end of the outer tube (311) is hinged on the roof (1), the top end of the inner rod (312) is inserted into the outer tube (311), and the bottom end is hinged on the upper surface of the upper guide rail (2), the telescopic rod (31) is vertically arranged, and the one-way positioning assembly (32) allows the telescopic rod (31) to be retracted, so that the telescopic rod (31) cannot be extended; The anti-support mechanism (5) comprises a mounting box (51), a pressure column (52), a lever (53) and a top column (54); the mounting box (51) is fixed on the upper surface of the upper guide rail (2); the upper surface of the mounting box (51) is provided with two receiving grooves (511) whose bottoms are connected; the top end of the pressure column (52) is connected to the roof (1) and the bottom end is inserted into the receiving groove (511); the top column (54) is inserted into another receiving groove (511) and the top end of the top column (54) is connected to the roof (1); the lever (53) is rotatably connected to the connecting point at the bottom of the two receiving grooves (511), and the bottom ends of the pressure column (52) and the top column (54) are respectively abutted against the corresponding ends of the lever (53).

2. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: All steps S1-S5 are performed when the roof is not installed.

3. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: An inclined brace (4) is hingedly connected between the roof (1) and the outer tube (311).

4. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: The one-way positioning assembly (32) comprises a pin shaft (321), a ratchet (322), a connecting rope (323), a connecting spring (324) and a stop block (325); a plug hole (3111) for inserting the pin shaft (321) is provided on the side wall of the outer tube (311); the ratchet (322) is located inside the outer tube (311) and is fixedly sleeved on the pin shaft (321); the connecting rope (323) is fixed between the pin shaft (321) and the inner rod (312); The wall is provided with an installation groove (3112), a connecting spring (324) is fixed in the installation groove (3112), a limit block (325) slides in the installation groove (3112) and is fixed to the connecting spring (324), one side of the limit block (325) is arranged in an arc shape and cooperates with the outer arc surface of the ratchet (322), the limit block (325) allows the ratchet (322) to rotate in one direction, and when the ratchet (322) rotates, the connecting rope (323) pulls the inner rod (312) to move upward.

5. A method for installing a guide rail (2) on a maintenance hangar door according to claim 4, Features: The pin shaft (321) can be laterally displaced in the insertion hole (3111) so that the ratchet wheel (322) and the limit block (325) are misaligned.

6. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: A supporting spring (512) is fixed at the bottom ends of the two containing grooves (511), and the top end of the supporting spring (512) is fixed below the corresponding end of the lever (53).

7. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: The bottom ends of the pressure column (52) and the top column (54) are both spherical.

8. A method for installing a guide rail (2) on a maintenance hangar door according to claim 1, Features: The top ends of the compression column (52) and the top column (54) are both hinged to the roof (1).

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