A method for adjusting the lateral bending of a rear girder and the opening of a rail beam of a container crane

Abstract

The application discloses a rear girder side bending and rail beam opening size adjusting method of a container crane, and comprises the following steps: S1, hoisting a machine room into place, and loosening the support bolt of the machine room on the right land side of the rear girder; S2, cutting off the support on the hoisting winding side at the tail position of the rear girder; S3, adopting a hand-operated hoist to pull the ladder platform at the tail position of the rear girder; S4, removing the connecting plate bolt of the connecting beam at the tail position of the rear girder and the ladder platform; S5, selecting the maximum area of the rail beam at the tail position of the rear girder, which is out of tolerance, installing a process support and a jack, and adjusting the opening size of the rail beam; S6, after the side bending of the rear girder and the opening size of the rail beam are rechecked and qualified, removing the process support and the jack; and S7, reinstalling the ladder platform. The application solves the problem of local overtolerance of the traditional rear girder side bending and rail beam opening size.

Description

TECHNICAL FIELD

[0001] The present application relates to the shore crane assembly stage adjustment technology of port machinery, more particularly to a rear girder side bending and rail beam opening adjustment method of a container crane. BACKGROUND

[0002] The rear girder side bending and rail beam opening of the shore crane assembly stage of port machinery also need to be adjusted, such as Figure 1 The left and right side beams 400, 401 of the rear girder and the rail beam 402 have obvious side bending phenomenon at the rear side of the machine room 403 before the adjustment of the rear girder side bending and rail beam opening.

[0003] The conventional adjustment method is to correct the side bending and opening by fire correction and additional external force, which is to heat the adjacent area of the maximum position of the side bending deviation, and the heating area is strip-shaped or triangular, the strip-shaped area is straight line, and the triangular area is "z" shape, which decreases from the bottom edge to the top end, according to the value of the side bending deviation, combined with the mechanical external force of the hand-operated hoist or the jack. The fire correction point is selected from the maximum point of the side bending, the maximum point of the rail spacing deviation and the adjacent wing plate and web plate of the adjacent point corresponding to the partition plate position. However, this method is easy to cause serious paint damage, and the adjustment effect often cannot achieve the ideal effect, and local deviation problems may occur. SUMMARY

[0004] In view of the above defects in the prior art, the purpose of the present application is to provide a rear girder side bending and rail beam opening adjustment method of a container crane, which solves the problem of local deviation of the traditional rear girder side bending and rail beam opening.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] A rear girder side bending and rail beam opening adjustment method of a container crane, comprising the following steps:

[0007] S1, hoist the machine room in place, loosen the support bolt of the rear girder on the right land side of the machine room;

[0008] S2, cut off the support on one side of the lifting winding at the tail position of the rear girder;

[0009] S3, use a hand-operated hoist to pull the ladder platform at the tail position of the rear girder;

[0010] S4, remove the connecting plate bolt of the contact beam at the tail position of the rear girder and the ladder platform;

[0011] S5, select the rail beam on the tail position of the rear girder The maximum area of the over-difference deformation is adjusted to the rib installation process and the jack, and the opening of the rail beam is adjusted;

[0012] S6, after the lateral bending of the rear girder and the opening size of the rail beam are reviewed and qualified, the process support and the jack are removed;

[0013] S7, reinstall the ladder platform.

[0014] Preferably, in step S3, the hand-operated hoist is 5T hand-operated hoist, and is fixed on the handrail of the rear girder.

[0015] Preferably, step S5 further comprises:

[0016] The quality inspection personnel provide the lateral bending and rail beam opening value of the overall girder, and the technical personnel analyze the maximum point of the lateral bending, the maximum point of the track gauge over-difference, and the wing plate, web plate near the point, corresponding to the partition position, combined with the stress factor during the jacking adjustment, select the maximum area of the over-difference deformation, and select the best partition position.

[0017] Preferably, the rib partition is placed at the position of the maximum area of the over-difference deformation on the rail beam.

[0018] The process support, the jack and the rib partition correspondingly contact.

[0019] Preferably, step S6 further comprises:

[0020] The opening of the rail beam of the girder is measured by using a measuring tool, the laser theodolite is adjusted and placed, the lateral bending value of each water leakage hole position of the rear girder is re-measured, and the overall lateral bending value is controlled within 10mm, which is adjusted to be qualified.

[0021] Preferably, step S7 specifically comprises:

[0022] The misaligned bolt holes on the ladder platform are treated by hole expansion, and then installed.

[0023] The rear girder lateral bending and rail beam opening adjustment method of the container crane changes the traditional adjustment method of the rear girder lateral bending and rail beam opening local over-difference, is safe, environmentally friendly and saves construction cost, and effectively avoids the phenomenon of serious damage of girder paint caused by fire correction. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view before the rear girder lateral bending and rail beam opening adjustment;

[0025] Figure 2 is a schematic view of step S1 in the rear girder lateral bending and rail beam opening adjustment method of the application.

[0026] Figure 3 yes Figure 2 A schematic diagram of the AA direction;

[0027] Figure 4 yes Figure 2 A schematic diagram of the CC direction;

[0028] Figure 5 yes Figure 2 A schematic diagram of the BB direction;

[0029] Figure 6 This is a schematic diagram of the rear beam side bending and rail beam opening adjustment method of the present invention. Detailed Implementation

[0030] To better understand the above-mentioned technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The present invention provides a method for adjusting the lateral bending of the rear beam and the opening of the rail support beam of a container crane, comprising the following steps:

[0032] S1. With the rear beam in the final assembly stage and the machine room 100 in place, first loosen the two sets of support bolts 1 on the right side of the rear beam 200. Figure 2 As shown;

[0033] S2, after cutting off the tail end of the main beam 200, lift and wrap the support 2 on one side, such as Figure 3 As shown;

[0034] S3. A 5T hand chain hoist 3 is used to diagonally support the ladder platform 3 at the tail end of the rear beam 200. The hand chain hoist 3 is fixed to the railing of the rear beam 200. Figure 4 As shown;

[0035] S4, after removal, the connecting beam at the tail end of the main beam 200 and the connecting plate bolt 4 of the ladder platform, such as... Figure 4 As shown;

[0036] S5. Select the area with the largest excess deformation on the rail support beam at the rear end of the rear main beam 200. Use the truck crane 8 to lift and install the reinforcement installation process support 5 and jack 6. The left end of the process support 5 contacts the left side of the rear main beam 300 through the pad 7. The jack 6 is installed on the right end of the process support 5, and the jack 6 also contacts the rear main beam 200 through the pad 7. Start the jack 6 to open the rail support beam. Figure 5 As shown;

[0037] The area of ​​maximum out-of-tolerance deformation on the rail bearing beam at the tail position of the rear beam 200 selected in step S5 further includes:

[0038] The quality inspector provides the overall girder lateral bending and the rail beam opening size value, and then the technician analyzes the maximum point of lateral bending, the maximum point of track gauge and the wing plate, web plate near the point, the corresponding partition position, and selects the maximum area of the superposition deformation and the best partition position according to the stress factor during the jacking adjustment;

[0039] S6, after the lateral bending of the rear girder 200 and the opening size of the rail beam are rechecked, the jack 6 is loosened, and the process support 5 and the pad plate 7 are removed;

[0040] The opening size recheck in step S6 further includes:

[0041] The opening size of the girder is measured by using a measuring tool, the laser theodolite is adjusted and placed, the lateral bending value of each water leakage hole position of the rear girder is re-measured, and the overall lateral bending value is controlled within 10mm, which is qualified for adjustment;

[0042] S7, reinstall the ladder platform. If the bolt holes on the ladder platform are misaligned, the misaligned bolt holes are reamed to ensure that the bolts are vertically and smoothly inserted, and the installation of the ladder platform meets the inspection specification.

[0043] In combination with Figure 6 As shown in the drawings, the left and right side beams 400, 401 and the rail beam 402 of the rear girder at the rear side of the machine room 403 are adjusted by the rear girder lateral bending and rail beam opening adjustment method of the present application.

[0044] In summary, the rear girder lateral bending and rail beam opening adjustment method of the container crane provided by the present application has regional superposition adjustment, which avoids affecting the total assembly period of the project.

[0045] Those skilled in the art in this technical field should realize that the above embodiments are only used to illustrate the present application, and are not used as a limitation on the present application, as long as the changes and modifications of the above described embodiments are within the scope of the spirit of the present application, and fall within the scope of the claims of the present application.

Claims

1. A method for non-explosive correction adjustment of the lateral bending of the rear girder and the opening of the rail beam of a container crane, characterized in that, The method comprises the following steps: S1, hoisting the machine room into place, loosening the support bolt of the rear beam on the right land side; S2, cutting off the support on the lifting winding side at the tail position of the rear beam; S3, using a hand-operated hoist to pull the ladder platform at the tail position of the rear beam, and the hand-operated hoist is fixed to the handrail of the rear beam; S4, removing the connecting plate bolt of the connecting beam at the tail position of the rear beam and the ladder platform; S5, selecting the maximum area of the super-difference deformation of the bearing rail beam at the tail position of the rear beam, and installing a process support and a jack through the automobile hoist, the left end of the process support is in contact with the rear beam on the left land side through a pad, the jack is installed at the right end of the process support, the jack is also in contact with the rear beam through a pad, the jack is started to open the bearing rail beam, and the opening of the bearing rail beam is adjusted; S6, after the lateral bending of the rear beam and the opening of the bearing rail beam are rechecked and qualified, the process support and the jack are removed; S7, reinstalling the ladder platform, The step S5 further comprises: The quality inspection personnel provide the lateral bending and the opening of the bearing rail beam, the technical personnel analyze the maximum point of the lateral bending, the maximum point of the track gauge, the wing plate, the web plate, and the corresponding partition plate position near the measured data, select the maximum area of the super-difference deformation in combination with the stress factors during the jacking adjustment, The counter-bracing partition plate is placed at the position of the maximum area of the super-difference deformation of the bearing rail beam, The process support, the jack, and the counter-bracing partition plate are in corresponding contact, The step S6 further comprises: The opening of the bearing rail beam of the rear beam is measured by using a measuring tool, the laser theodolite is adjusted and placed, the lateral bending values of the positions of the water leakage holes of the rear beam are re-measured, and the overall lateral bending value is controlled within 10 mm, and the adjustment is qualified, The step S7 specifically comprises: The misaligned bolt holes of the ladder platform are treated by hole expansion, and then installed, The non-fire correction adjustment method of the lateral bending of the rear beam and the opening of the bearing rail beam of the container crane effectively avoids the phenomenon of serious damage of the oil paint of the rear beam caused by fire correction.

2. The method of claim 1, wherein the method further comprises: adjusting the angle of the back girder by adjusting the angle of the back girder side bending and rail beam opening of the container crane. In the step S3, the hand-operated hoist is a 5T hand-operated hoist.

Images