Energy-saving guide wheel installation auxiliary device and installation method

Abstract

An energy-saving guide wheel installation auxiliary device and installation method, the auxiliary device has a circular base plate, a vertical main shaft is fixed in the center of the base plate, an angle scale dial and a plurality of guide vane bases are sequentially arranged on the main shaft from bottom to top, the base is fixed on the main shaft through a bearing at one end, and an inclination adjusting device is arranged on the base. The guide vane is placed on the inclination adjusting device, the inclination of each equipment is adjusted according to the inclination of the guide vane, alignment inspection is performed after all angle adjustments are completed, and welding of the guide vane and the guide pipe can be performed after confirmation. The core creation point is that a method for quickly positioning the guide vane is invented. The guide wheel construction method of the new invention can effectively avoid the construction error caused by the traditional construction process of marking, and the construction precision is improved without occupying the crane resources. The application of the device has high adaptability and universality compared with the traditional construction method, is not limited by design factors such as ship type, and can realize efficient construction of one tire for multiple uses.

Description

Technical Field

[0001] This invention belongs to the field of marine shipbuilding and design, and specifically relates to an energy-saving guide wheel installation auxiliary device and installation method. Background Technology

[0002] The ship's energy-saving guide wheel device consists of ducts, guide vanes, and other auxiliary structures. Its construction is a complex project requiring high technical precision. It needs to be completed in a specific site with the assistance of specialized tooling. The positioning angles of the guide vanes and ducts within the circumference and the tilt angle of the guide vanes themselves are key points for precision control during the construction process. There are no fixed values ​​for the design angles of the energy-saving guide wheel. Different ship types require optimized design based on parameters such as propeller and navigation conditions. Some new energy-saving guide wheels also adopt asymmetric variable angle designs to better adapt to the complex flow field at the stern of the ship.

[0003] The traditional method of constructing energy-saving guide wheels involves first drawing a crosshair on the ground. The intersection of the crosshair serves as the positioning reference point for each guide vane and guide tube. The rotation angle of the guide vane needs to be determined by the vertical distance between the front end of each guide vane and the crosshair, along with the theoretical distance. In other words, each guide vane needs to be positioned after the corner of the crosshair is marked. This traditional construction method is affected by the accuracy of the corner and the large amount of marking, resulting in a deviation between the actual positioning of the guide vane and the theoretical angle.

[0004] Furthermore, during the construction of the guide wheel, a special ship frame and support are made on-site to assist in the construction. The positioning angle of the guide vane and the guide tube, as well as the tilt angle of the guide vane itself, are all adjusted by cranes in conjunction with tooling. The positioning and adjustment cycle is long and also occupies too much of the limited crane resources. After multiple uses, the tooling needs to be replaced. If different ship types of guide wheels are being built, the tooling also needs to be remade, which directly increases the construction cost and the overall construction efficiency is not high. Summary of the Invention

[0005] To address the above problems, this invention provides an energy-saving guide wheel installation auxiliary device and installation method, aiming to achieve convenient and precise installation of the guide wheel. The technical solution adopted is as follows:

[0006] An energy-saving guide wheel installation auxiliary device and installation method are disclosed. The auxiliary device has a circular base plate, a vertically arranged main shaft is fixed at the center of the base plate, and an angle scale and a plurality of fixed guide wheel bases are arranged sequentially from bottom to top on the main shaft. One end of the base is fixed to the main shaft by a bearing and can rotate around the main shaft.

[0007] The base is equipped with a tilt adjustment device, which has an inclined baffle. Angle adjustment components are symmetrically arranged on both sides of the inclined baffle, and a flat bolt is fixed between the two angle adjustment components. The angle adjustment component has two arc-shaped adjustment plates of the same shape. The panels of the two arc-shaped adjustment plates have arc-shaped through holes. One end of one arc-shaped adjustment plate is fixed to the top of the inclined baffle, and one end of the other arc-shaped adjustment plate is fixed to the base. The free ends of the two arc-shaped adjustment plates are joined together, and after joining, the adjustment bolt passes through the arc-shaped through hole for fixation. The bottom of the inclined baffle is connected to the base through a hinge.

[0008] An outer sealing plate is also provided on the base, and there is a gap between the outer sealing plate and the inclined baffle. The guide vane is placed between the inclined baffle and the outer sealing plate.

[0009] After initially positioning the guide vanes on the base, the guide vane base is rotated to each designed circumferential angle using the rotating guide vane circumferential angle adjustment device and the angle scale dial. Supports are added to the base and sealed to ensure it no longer rotates. The circumferential angle positioning of all bases is completed sequentially. The magnetic end of the laser goniometer is attached to the guide vane near the inclined baffle. The relative positions of the two arc-shaped adjustment plates are adjusted according to the designed tilt angle of the guide vane. When the degree reading on the laser goniometer reaches the theoretical design value, the tilt angle adjustment of the guide vane on each base is complete. The adjusting bolts are tightened and reinforced with flat bolt sleeves. The tilt positioning of all guide vanes is completed, and the angle is re-confirmed and adjusted before welding until all theoretical design requirements are met. A sealing plate is then used for further sealing. Finally, the overall assembly and welding of the guide vane and the guide tube are completed.

[0010] Furthermore, in the aforementioned energy-saving guide wheel installation auxiliary device and installation method, an isolation resin gasket is provided between adjacent bearings.

[0011] Furthermore, the aforementioned energy-saving guide wheel installation auxiliary device and installation method further includes a 360° angle scale on the dial.

[0012] Furthermore, in the aforementioned energy-saving guide wheel installation auxiliary device and installation method, the main shaft is provided with five bases arranged sequentially from bottom to top.

[0013] Furthermore, in the aforementioned energy-saving guide wheel installation auxiliary device and installation method, a laser angle measuring instrument is installed on the inclined baffle.

[0014] Furthermore, the aforementioned energy-saving guide wheel installation auxiliary device and installation method further include two tilt adjustment devices on the base.

[0015] This invention achieves high-precision positioning of each guide vane by using a rotating base with an angle measuring instrument. After confirming the guide vane's rotation angle, supports are added and sealed under the base. Each piece of equipment is adjusted according to the guide vane's tilt angle. After all angle adjustments are completed, alignment checks are performed. Once confirmed, the guide vane and guide tube can be welded. The core innovation is the invention of a method for rapid guide vane positioning. The application of this newly invented guide wheel construction method effectively avoids construction errors caused by marking in traditional construction processes, improving construction accuracy without occupying crane resources. Compared to traditional construction methods, this device has high adaptability and versatility, is not limited by ship type or other design factors, and can achieve efficient construction with multiple uses. Attached Figure Description

[0016] Figure 1 This is a top-view structural diagram of the guide wheel construction;

[0017] Figure 2 This is a side view diagram of the guide wheel construction structure;

[0018] Figure 3 yes Figure 1 Schematic diagram of the structure from the perspective of AA;

[0019] Figure 4 yes Figure 3 Schematic diagram of the structure from the perspective of a mid-BB (Browser-Based Array)

[0020] Among them, 1-base plate, 2-spindle, 3-angle scale, 4-base, 5-bearing, 6-bearing gasket, 7-support fixture, 8-angle adjustment slide, 9-angle adjustment slide, 10-adjusting bolt, 11-hinge, 12-tilting baffle, 13-sealing fixture, 14-flat bolt sleeve, 15-laser goniometer, 16-sealing plate. Detailed Implementation

[0021] The present invention will be described in detail with reference to specific embodiments.

[0022] like Figures 1-4 The energy-saving guide wheel installation auxiliary device and installation method shown include a circular base plate, a vertically arranged main shaft fixed at the center of the base plate, and angle scales and multiple fixed guide plate bases arranged sequentially from bottom to top on the main shaft. One end of the base is fixed to the main shaft by a bearing and can rotate around the main shaft.

[0023] The base is equipped with a tilt adjustment device, which has an inclined baffle. Angle adjustment components are symmetrically arranged on both sides of the inclined baffle, and a flat bolt is fixed between the two angle adjustment components. The angle adjustment component has two arc-shaped adjustment plates of the same shape. The panels of the two arc-shaped adjustment plates have arc-shaped through holes. One end of one arc-shaped adjustment plate is fixed to the top of the inclined baffle, and one end of the other arc-shaped adjustment plate is fixed to the base. The free ends of the two arc-shaped adjustment plates are joined together, and after joining, the adjustment bolt passes through the arc-shaped through hole for fixation. The bottom of the inclined baffle is connected to the base through a hinge.

[0024] An outer sealing plate is also provided on the base, and there is a gap between the outer sealing plate and the inclined baffle. The guide vane is placed between the inclined baffle and the outer sealing plate.

[0025] After initially positioning the guide vanes on the base, the guide vane circumferential angle adjustment device is rotated in conjunction with the angle scale to rotate the guide vane base to each designed circumferential angle and then position it. Supports are added under the base and sealed to ensure that the base no longer rotates. The circumferential angle positioning of all bases is completed step by step. Then, according to the design tilt angle of the guide vane itself, the relative position of the two arc-shaped adjustment plates is adjusted. With the help of a laser angle measuring instrument, the tilt angle of the guide vane on each base is adjusted. After the design requirements are met, the adjustment bolts are tightened and the flat bolt sleeve is used to support and reinforce the sealing. The tilt positioning of all guide vanes is completed and the angle is checked and adjusted again before welding until all theoretical design requirements are met. Then, the sealing plate is used for further sealing. Finally, the overall assembly and welding of the guide vane and the guide tube is completed.

[0026] This invention provides a method and universal device for quickly positioning the circumferential angle and tilt angle of guide vanes. It has the advantages of high positioning accuracy and high construction efficiency. It is easy to adjust without occupying too many other construction resources and is not limited by ship type, and has extremely high universality and adaptability.

Claims

1. An installation method for an energy-saving guide wheel installation auxiliary device, characterized in that, The auxiliary device includes a circular base plate, with a vertically arranged main shaft fixed at the center of the base plate. From bottom to top, the main shaft is provided with an angle scale and a base for multiple fixed guide vanes. One end of the base is fixed to the main shaft by a bearing and can rotate around the main shaft. The base is equipped with a tilt adjustment device, which has an inclined baffle. Angle adjustment components are symmetrically arranged on both sides of the inclined baffle, and a flat bolt is fixed between the two angle adjustment components. Each angle adjustment component has two identical arc-shaped adjustment plates, each with an arc-shaped through hole on its panel. One end of one arc-shaped adjustment plate is fixed to the top of the inclined baffle, and the other end is fixed to the base. The free ends of the two arc-shaped adjustment plates are joined together, and an adjusting bolt passes through the arc-shaped through hole for fixation. The bottom of the inclined baffle is connected to the base via a hinge, and a laser angle measuring instrument is installed on the inclined baffle. An outer sealing plate is also provided on the base, and there is a gap between the outer sealing plate and the inclined baffle. The guide vane is placed between the inclined baffle and the outer sealing plate. After initially positioning the guide vanes on the base, the guide vane base is rotated to each designed circumferential angle using the rotating guide vane circumferential angle adjustment device and the angle scale dial. Supports are added to the base and sealed to ensure it no longer rotates. The circumferential angle positioning of all bases is completed sequentially. The magnetic end of the laser goniometer is attached to the guide vane near the inclined baffle. The relative positions of the two arc-shaped adjustment plates are adjusted according to the designed tilt angle of the guide vane. When the degree reading on the laser goniometer reaches the theoretical design value, the tilt angle adjustment of the guide vane on each base is complete. The adjusting bolts are tightened and reinforced with flat bolt sleeves. The tilt positioning of all guide vanes is completed, and the angle is re-confirmed and adjusted before welding until all theoretical design requirements are met. A sealing plate is then used for further sealing. Finally, the overall assembly and welding of the guide vane and the guide tube are completed.

2. The installation method of the energy-saving guide wheel installation auxiliary device according to claim 1, characterized in that, A separating resin gasket is provided between adjacent bearings.

3. The installation method of the energy-saving guide wheel installation auxiliary device according to claim 1, characterized in that, The angle dial is set to 360°.

4. The installation method of the energy-saving guide wheel installation auxiliary device according to claim 1, characterized in that, The main shaft has five bases arranged from bottom to top.

5. The installation method of the energy-saving guide wheel installation auxiliary device according to claim 1, characterized in that, Two tilt adjustment devices are installed on the base.

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