A method of centering a marine gear case to an intermediate support

Abstract

This invention discloses a method for aligning a ship's gearbox and intermediate support. The method specifically includes the following steps: S1, after the gearbox and intermediate support are installed, a needle-tip alignment tool is installed on the input flange end of the gearbox and the output flange end of the intermediate support, respectively; S2, an alignment device is installed on one side of the input flange end of the gearbox and one side of the output flange end of the intermediate support, respectively; S3, a recording strip is passed through the gap between the gearbox and the intermediate support, causing the needle-tip alignment tools on the gearbox and the intermediate support to mark alignment on both sides of the recording strip. The error of the alignment marks on both sides of the recording strip is used to determine whether the alignment of the gearbox and the intermediate support meets the requirements, thus completing the alignment of the ship's gearbox and the intermediate support. This invention, by setting up an alignment device, connects the gearbox and the intermediate support, facilitating alignment measurement and improving measurement accuracy.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a method for aligning a ship's gearbox with an intermediate support. Background Technology

[0002] To adapt to the increasingly fast-paced and cost-effective modern shipbuilding industry, to achieve standardization in shipbuilding, to maximize the use of limited resources, and to reduce energy loss and human resource costs, this calibration tool was designed.

[0003] In the installation of marine equipment, universal couplings are important components connecting gearboxes and intermediate supports. Their installation accuracy is relatively high, and the positions of gearboxes and intermediate supports have a great influence on their installation. Therefore, it is necessary to check whether their positions meet the standards before installation.

[0004] After the gearbox and intermediate support are installed, needle tip alignment tools are installed on the input flange end of the gearbox and the output flange end of the intermediate support. The measurement result of the needle tip position determines whether the alignment meets the standard, and its position will have a significant impact on the subsequent installation of the universal coupling. In the past, a steel ruler was used for the calibration measurement of the needle tip alignment, which has disadvantages such as large errors. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for aligning a ship's gearbox and intermediate support. This invention connects the gearbox and intermediate support by setting an alignment device, which facilitates alignment measurement and improves measurement accuracy.

[0006] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0007] A method for aligning a ship's gearbox with an intermediate support, the method specifically includes the following steps:

[0008] S1. After the gearbox and intermediate support are installed, install the needle tip alignment tool on the input flange end of the gearbox and the output flange end of the intermediate support respectively.

[0009] S2, centering devices are installed on the input flange side of the gearbox and the output flange side of the intermediate support respectively;

[0010] S3. Pass the recording strip through the gap between the gearbox and the intermediate support, so that the needle-tip alignment tool on the gearbox and the intermediate support can make alignment marks on both sides of the recording strip. The error of the alignment marks on both sides of the recording strip is used to judge whether the alignment of the gearbox and the intermediate support meets the requirements, thus completing the alignment of the ship's gearbox and the intermediate support.

[0011] Furthermore, the tail portion of the needle tip centering tool is connected and fixed to the input flange end of the gearbox and the output flange end of the intermediate support, respectively. The needle tip centering tools on the gearbox and the intermediate support are arranged facing each other. The axis of the needle tip centering tool on the gearbox coincides with the axis of the gearbox, and the axis of the needle tip centering tool on the intermediate support coincides with the axis of the intermediate support.

[0012] Furthermore, the centering device includes a sleeve and a connecting plate. The sleeve is respectively installed on the input flange end of the gearbox and the output flange end of the intermediate support. The connecting plate connects the sleeves installed on the gearbox and the intermediate support. The sleeve is generally rectangular, with only a circular through hole on its end face. A retaining plate is provided on one end face of the sleeve, and a retaining groove is provided on each side of the sleeve. The connecting plate is generally U-shaped. When the connecting plate is installed, both sides of the connecting plate are engaged in the retaining grooves of the sleeve.

[0013] Furthermore, the end face of the connecting plate is provided with detection strip holes. When the connecting plate is installed, the detection strip holes of the vertical connecting plate are installed symmetrically, and the detection strip holes of the horizontal connecting plate are installed symmetrically.

[0014] Furthermore, the recording strip is made of a long strip of cardboard, the width of the recording strip is less than the length of the detection strip hole of the connecting plate, a cross coordinate system is set on both sides of the recording strip, the horizontal axis in the coordinate system coincides with the center line of the recording strip, and the two sides of the recording strip are coated with a mixture of black paraffin and charcoal.

[0015] Further, the alignment device performs alignment as follows: Sleeves are respectively fitted onto the input flange end of the gearbox and the output flange end of the intermediate support, with the sleeves having grooves positioned opposite each other. Connecting plates are used to connect the sleeves. First, the recording strip is inserted through the detection strip hole on the vertical connecting plate and removed from the detection strip hole on the lower connecting plate. A needle-tip alignment tool draws alignment lines on both sides of the recording strip, and the distance between the alignment lines on both sides and the horizontal axis of the recording strip is measured, calculating the difference in distance between the two alignment lines. Then, the recording strip is inserted through the detection strip hole on the horizontal connecting plate and removed from the detection strip hole on the lower connecting plate. The needle-tip alignment tool draws alignment lines on both sides of the recording strip, and the distance between the alignment lines on both sides and the horizontal axis of the recording strip is measured, calculating the difference in distance between the two alignment lines. This completes the alignment detection of the gearbox and the intermediate support.

[0016] Based on the above technical solution, the alignment method for ship gearboxes and intermediate supports of this invention has achieved the following technical advantages through practical application:

[0017] 1. The present invention provides a method for aligning a ship's gearbox and intermediate support. By setting up an alignment device, the gearbox and intermediate support are connected, which facilitates alignment measurement and improves measurement accuracy. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the alignment device installation in an alignment method for a ship's gearbox and intermediate support according to the present invention.

[0019] Figure 2 This is a front view of the alignment device in the alignment method for a ship's gearbox and intermediate support according to the present invention.

[0020] Figure 3 This is a schematic diagram of a recording strip in a method for aligning a ship's gearbox and intermediate support according to the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] like Figure 1-3 As shown, this invention pertains to a method for aligning a ship's gearbox with an intermediate support, and the method specifically includes the following steps:

[0023] S1. After the gearbox 1 and intermediate support 2 are installed, the needle tip centering tool 3 is installed on the input flange end of the gearbox 1 and the output flange end of the intermediate support 2 respectively.

[0024] S2, Alignment devices are installed on the input flange side of gearbox 1 and the output flange side of intermediate bracket 2 respectively;

[0025] S3, pass the recording strip 4 through the gap between the gearbox 1 and the intermediate support 2, so that the needle tip alignment tool 3 on the gearbox 1 and the intermediate support 2 can make alignment marks on both sides of the recording strip 4. The error of the alignment marks on both sides of the recording strip 4 is used to judge whether the alignment of the gearbox 1 and the intermediate support 2 meets the requirements, and the alignment of the ship gearbox 1 and the intermediate support 2 is completed.

[0026] By setting up a centering device to connect the gearbox 1 to the intermediate support 2, centering measurement is facilitated and measurement accuracy is improved.

[0027] The tail of the needle tip centering tool 3 is connected and fixed to the input flange end of the gearbox 1 and the output flange end of the intermediate support 2, respectively. The needle tip centering tool 3 on the gearbox 1 and the needle tip centering tool 3 on the intermediate support 2 are arranged facing each other. The axis of the needle tip centering tool 3 on the gearbox 1 coincides with the axis of the gearbox 1, and the axis of the needle tip centering tool 3 on the intermediate support 2 coincides with the axis of the intermediate support 2.

[0028] The centering device includes a sleeve 5 and a connecting plate 6. The sleeve 5 is installed on the input flange end of the gearbox 1 and the output flange end of the intermediate support 2, respectively. The connecting plate 6 connects the sleeves 5 installed on the gearbox 1 and the intermediate support 2. The sleeve 5 is generally rectangular, with only a circular through hole on its end face. A retaining plate is provided on one end face of the sleeve 5, and a retaining groove is provided on each side of the sleeve 5. The connecting plate 6 is generally U-shaped. When the connecting plate 6 is installed, both sides of the connecting plate 6 are engaged in the retaining grooves of the sleeve 5.

[0029] The centering device connects and fixes the gearbox 1 and the intermediate support 2, which improves the stability of the equipment during centering measurement and reduces measurement error.

[0030] The end face of the connecting plate 6 is provided with detection strip holes. When the connecting plate 6 is installed, the detection strip holes of the vertical connecting plate 6 are installed symmetrically, and the detection strip holes of the horizontal connecting plate 6 are installed symmetrically.

[0031] The recording strip 4 is a long strip of cardboard. The width of the recording strip 4 is less than the length of the detection strip hole of the connecting plate 6. A cross coordinate system is set on both sides of the recording strip 4. The horizontal axis 41 in the coordinate system coincides with the center line of the recording strip 4. The two sides of the recording strip 4 are coated with a mixture of black paraffin and charcoal.

[0032] The alignment device performs the alignment as follows: Sleeves 5 are respectively fitted onto the input flange end of gearbox 1 and the output flange end of intermediate support 2, with one end of the sleeve 5 having a slot facing each other. Connecting plates 6 are used to connect the sleeves 5. First, the recording strip 4 is inserted through the detection strip hole on the vertical connecting plate 6 and removed from the detection strip hole on the lower connecting plate 6. The needle tip alignment tool 3 draws alignment lines on both sides of the recording strip 4, and the distance between the alignment lines on both sides of the recording strip 4 and the horizontal axis 41 of the recording strip 4 is measured, calculating the difference in distance between the two alignment lines. Then, the recording strip 4 is inserted through the detection strip hole on the horizontal connecting plate 6 and removed from the detection strip hole on the lower connecting plate 6. The needle tip alignment tool 3 draws alignment lines on both sides of the recording strip 4, and the distance between the alignment lines on both sides of the recording strip 4 and the horizontal axis 41 of the recording strip 4 is measured, calculating the difference in distance between the two alignment lines. The alignment detection of gearbox 1 and intermediate support 2 is completed.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for centering a marine gear case to an intermediate support, characterized by, The method specifically comprises the following steps: S1, after the installation of the gearbox and the intermediate support is completed, a needle-point centering tool is installed on the input flange end of the gearbox and the output flange end of the intermediate support respectively; The tail part of the needle-point centering tool is connected and fixed with the input flange end of the gearbox and the output flange end of the intermediate support respectively, the needle-point centering tool on the gearbox and the needle-point centering tool on the intermediate support are oppositely arranged, the axis of the needle-point centering tool on the gearbox coincides with the axis of the gearbox, and the axis of the needle-point centering tool on the intermediate support coincides with the axis of the intermediate support; S2, a centering device is installed on the input flange end of the gearbox and the output flange end of the intermediate support respectively; The centering device comprises a sleeve and a connecting plate, the sleeve is installed on the input flange end of the gearbox and the output flange end of the intermediate support respectively, the connecting plate connects the sleeves installed on the gearbox and the intermediate support, the sleeve is in the shape of a cuboid, a circular through hole is formed in the end face of the sleeve, a clamping plate is arranged on one side of the end face of the sleeve, a clamping groove is arranged in the inner side of the clamping plate of the sleeve, the connecting plate is in the shape of a V, and the connecting plate is clamped in the clamping groove of the sleeve when the connecting plate is installed; A detection strip hole is arranged on the end face of the connecting plate, the detection strip holes of the connecting plate in the vertical direction are symmetrically installed, and the detection strip holes of the connecting plate in the horizontal direction are symmetrically installed; S3, a recording strip plate is inserted through the gap between the gearbox and the intermediate support, the needle-point centering tools on the gearbox and the intermediate support draw centering marks on the two side faces of the recording strip plate, and whether the centering of the gearbox and the intermediate support meets the requirements is determined according to the error of the centering marks on the two side faces of the recording strip plate, and the centering of the gearbox and the intermediate support of the ship is completed; The recording strip plate is in the shape of a long strip of hardboard, the width of the recording strip plate is smaller than the length of the detection strip hole of the connecting plate, cross coordinate systems are arranged on the two side faces of the recording strip plate respectively, the horizontal axis in the coordinate system coincides with the center line of the recording strip plate, and the two side surfaces of the recording strip plate are coated with a mixture of black vaseline and charcoal.

Images