Method for bending monorail hoist beam by using plate bending machine
By combining a plate rolling machine and a bending sleeve, the problems of irregular bending and annealing at the construction site of monorail crane beams were solved, achieving a smooth mechanical bending effect, saving materials and labor, reducing construction costs, and improving construction quality and efficiency.
Patent Information
- Application Number
- CN202511201818.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2025-10-21
AI Technical Summary
In the existing technology, the bending of monorail crane beams during on-site construction results in irregular bending and is prone to material annealing, affecting construction quality and cost.
The monorail crane beam is bent by mechanical pressure bending using a plate rolling machine and a specially designed bending sleeve, avoiding flame heating. The groove of the bending sleeve matches the flange of the track beam, and the curvature is controlled by adjusting the upper and lower pressure rollers.
This method achieves smooth and regular bending of the track beam, avoids material annealing, saves materials and labor, reduces construction costs, and improves processing quality and efficiency.
Smart Images
Figure CN120815858A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of monorail crane installation engineering, and in particular to a method for bending a monorail crane beam by using a plate rolling machine. Background Art
[0002] During monorail crane installation, the track sometimes needs to be bent or looped. The traditional method for bending the crane beam on-site is to secure one end of the beam to a processing platform, heat it red with oxygen and acetylene flames, and then use a hand chain hoist to bend the other end. This bending method not only produces irregular and smooth bends, but also causes annealing of the raw material. Therefore, finding a method that achieves smooth and regular bends without annealing is crucial for large-scale monorail crane installations. Summary of the Invention
[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a method for bending a monorail crane beam using a plate rolling machine, which can achieve a smooth transition when the crane beam is bent and will not cause annealing of the raw material.
[0004] The present invention provides a method for bending a monorail crane beam using a plate rolling machine, which adopts the following technical solutions: A method for bending a monorail crane beam using a plate rolling machine comprises the following steps: S1. Install the prepared bending sleeve on the upper and lower rollers of the plate rolling machine, and feed the rail beam to be bent into the plate rolling machine along the groove of the bending sleeve; S2. Move the rail beam to the upper and lower rollers where it needs to be bent, adjust the upper roller of the plate rolling machine downward, turn the plate rolling machine, and start bending; S3. Measure the curvature of the track beam. If it does not meet the curvature requirements, continue to adjust the upper pressure roller downward and rotate the plate rolling machine until the curvature of the track beam meets the installation requirements. S4. After the track beam passes the bending test, it is transported to the installation site for installation.
[0005] Optionally, the width of the groove on the bending sleeve is the same as the width of the upper wing plate of the track beam, and the depth of the groove is equal to 1 / 2 the width of the upper wing plate of the track beam.
[0006] Optionally, the bending sleeve includes two semicircular sleeves, and the two semicircular sleeves are fixed by bolts.
[0007] Compared with the prior art, the present invention has the following technical effects: No flame heating is required, and annealing does not occur. Mechanical bending produces smooth and regular shapes. The method of bending monorail crane beams using a plate rolling machine saves materials and labor, improves processing quality and efficiency, reduces construction costs, and accelerates construction progress compared to traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the upper pressing roller and the lower pressing roller in the present invention; Figure 3 It is a schematic diagram of the bending sleeve in the present invention.
[0009] Explanation of the accompanying reference numerals: 1. Plate rolling machine; 11. Upper pressure roller; 12. Lower pressure roller; 2. Bending sleeve; 21. Bolt hole; 22. Groove; 3. Track beam. DETAILED DESCRIPTION
[0010] The following is combined with Figure 1 -Attached Figure 3 The present invention is described in further detail.
[0011] Reference Figure 1-Figure 3 The present invention discloses an apparatus for bending a monorail crane beam using a plate rolling machine. The apparatus includes a plate rolling machine 1, which is a common device used at construction sites for industrial metallurgical projects. The plate rolling machine 1 includes an upper pressure roller 11 and two lower pressure rollers 12. The upper rail is positioned above and between the two lower pressure rollers 12.
[0012] Both the upper and lower pressure rollers 11 and 12 are mounted with bending sleeves 2. These sleeves consist of two semicircular sleeves, each with bolt holes 21. Bolts secure the sleeves together. Two grooves 22 are defined within the bending sleeves 2, corresponding to the two flanges of the track beam 3. The depth of the grooves 22 is equal to half the width of the flanges of the track beam 3. The bending sleeves 2 on the upper and lower pressure rollers 11 and 12 correspond to each other vertically. The width of the grooves 22 is the same as the width of the flanges of the track beam 3.
[0013] Three bending sleeves 2 are manufactured based on the dimensions of the upper and lower pressure rollers 11 and 12 of the plate rolling machine 1, as well as the height of the track beam 3 and the width of the wing plate. Each bending sleeve 2 is manufactured as two identical semicircular sleeves that are fastened together using bolts. During installation, the bending sleeves 2 can be directly installed without removing the pressure rollers of the plate rolling machine 1. The bending sleeves 2 are used to bend the track beam 3 on the plate rolling machine 1.
[0014] A method for bending a monorail crane beam using a plate rolling machine of the present invention comprises the following steps: (1) Install the manufactured bending sleeve 2 on the upper pressing roller 11 and the lower pressing roller 12 of the plate rolling machine 1, and feed the track beam 3 to be bent into the plate rolling machine 1 along the groove 22 of the bending sleeve 2.
[0015] (2) Move the track beam 3 to the position where it needs to be bent to the upper pressure roller 11 and the lower pressure roller 12, adjust the upper pressure roller 11 of the plate rolling machine 1 downward, turn the plate rolling machine 1, and start bending.
[0016] (3) Use the pre-made curvature template to measure the curvature of the track beam 3. If it does not meet the curvature requirements, continue to adjust the upper pressure roller 11 downward and rotate the plate rolling machine 1 until the curvature of the track beam 3 meets the installation requirements.
[0017] (4) After the track beam 3 passes the bending test, it is taken out of the plate rolling machine 1 and transported to the installation site for installation.
[0018] The technical effects of the present invention include: no flame heating and no annealing; mechanical bending, smooth and regular; simple production, convenient operation, saving materials and labor, and reducing construction costs. Compared with traditional methods, the method of bending a monorail crane beam using a plate rolling machine 1 in the present invention saves materials and labor, improves processing quality and efficiency, reduces construction costs, and accelerates construction progress.
[0019] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A method for bending a monorail crane beam using a plate rolling machine, characterized in that: The steps include: S1. Install the manufactured bending sleeve (2) on the upper pressing roller (11) and the lower pressing roller (12) of the plate rolling machine (1), and feed the track beam (3) to be bent into the plate rolling machine (1) along the groove (22) of the bending sleeve (2); S2. Move the track beam (3) to the position where it needs to be bent to the upper pressure roller (11) and the lower pressure roller (12), adjust the upper pressure roller (11) of the plate rolling machine (1) downward, rotate the plate rolling machine (1), and start bending; S3. Measure the curvature of the track beam (3). If it does not meet the curvature requirement, continue to adjust the upper pressure roller (11) downward and rotate the plate rolling machine (1) until the curvature of the track beam (3) meets the installation requirement. S4. After the track beam (3) passes the bending test, it is transported to the installation site for installation.
2. The method for bending a monorail crane beam using a plate rolling machine according to claim 1, characterized in that: The width of the groove (22) on the bending sleeve (2) is the same as the width of the upper wing plate of the track beam (3), and the depth of the groove (22) is equal to 1 / 2 of the width of the upper wing plate of the track beam (3).
3. The method for bending a monorail crane beam using a plate rolling machine according to claim 1 or 2, characterized in that: The bending sleeve (2) comprises two semicircular sleeves, and the two semicircular sleeves are fixed by bolts.