Centering method for ship gearbox and middle support

Abstract

The invention discloses a centering method for a gearbox and a middle support of a ship, and the method specifically comprises the following steps: S1, after the gearbox and the middle support are mounted, needle point centering tools are respectively mounted at the input flange end of the gearbox and the output flange end of the middle support; s2, centering devices are installed on one side of the input flange end of the gearbox and one side of the output flange end of the middle support correspondingly; s3, enabling a recording batten to penetrate through a gap between the gear box and the middle support, enabling needle point centering tools on the gear box and the middle support to mark centering marks on the two side faces of the recording batten, and judging whether the centering of the gear box and the middle support meets the requirement or not according to the error of the centering marks on the two sides of the recording batten; and centering of the ship gearbox and the middle support is completed. According to the invention, through the arrangement of the centering device, the gear box is connected with the middle support, the centering measurement is facilitated, and the measurement precision is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ship construction, and in particular relates to a method for centering a ship gear box and an intermediate bracket. Background Art

[0002] In order to adapt to the increasingly faster pace of modern shipbuilding and achieve cost-effectiveness, this calibration tool is designed to achieve standardization of shipbuilding, maximize the use of limited resources, and reduce kinetic energy loss and human resource costs.

[0003] During the installation of ship equipment, the universal coupling is an important component that connects the gearbox and the intermediate bracket. Its installation accuracy is relatively high. The position of the gearbox and the intermediate bracket has a great influence on its installation. Therefore, before installation, it is necessary to check whether its position meets the standards.

[0004] After the gearbox and the intermediate bracket are installed, a needle tip alignment tool will be installed on the input flange end of the gearbox and the output flange end of the intermediate bracket. The needle tip position measurement result determines whether the alignment meets the standard. Its position will have a great impact on the subsequent installation of the universal coupling. The previous process used a steel ruler for the calibration measurement of the needle tip alignment, which has the disadvantages of large errors. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and provide a method for centering a ship gearbox and an intermediate bracket. The present invention facilitates the measurement of centering by setting a centering device and connecting the gearbox to the intermediate bracket, thereby improving the measurement accuracy.

[0006] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0007] A method for centering a ship gearbox and an intermediate bracket, the method specifically comprising the following steps:

[0008] S1, after the gearbox and the intermediate bracket are installed, install the needle tip centering tool on the input flange end of the gearbox and the output flange end of the intermediate bracket respectively;

[0009] S2, install the centering device on one side of the input flange end of the gearbox and one side of the output flange end of the intermediate bracket respectively;

[0010] S3, pass the recording strip through the gap between the gearbox and the intermediate bracket, so that the needle-tip alignment tools on the gearbox and the intermediate bracket draw alignment marks on the two sides of the recording strip, and judge whether the alignment of the gearbox and the intermediate bracket meets the requirements through the error of the alignment marks on both sides of the recording strip, and complete the alignment of the ship gearbox and the intermediate bracket.

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

[0012] Further, the centering device includes a sleeve and a connecting plate. The sleeves are respectively installed on the input flange end of the gearbox and the output flange end of the intermediate bracket. The connecting plate connects the sleeves installed on the gearbox and the intermediate bracket. The sleeve is integrally rectangular. A circular through-hole is opened on the end face of the sleeve. A clamping plate is arranged on one end face of the sleeve, and a clamping groove is arranged on each side of the sleeve. The connecting plate is integrally U-shaped. When the connecting plate is installed, both sides of the connecting plate are stuck in the clamping grooves of the sleeve.

[0013] Further, a detection strip hole is arranged on the end face of the connecting plate. When the connecting plate is installed, 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.

[0014] Further, the recording strip board is integrally a long strip of cardboard. The width of the recording strip board is smaller than the length of the detection strip hole of the connecting plate. Cross coordinate systems are respectively arranged on both side surfaces of the recording strip board. The horizontal axis in the coordinate system coincides with the center line of the recording strip board. The two side surfaces of the recording strip board are coated with a mixture of black paraffin wax and charcoal.

[0015] Further, the centering of the centering device is specifically as follows: The sleeves are respectively sleeved on the input flange end of the gearbox and the output flange end of the intermediate bracket. One end of the sleeve provided with the clamping groove is arranged opposite. The connecting plate is used to connect the sleeves respectively. First, the recording strip board is inserted into the detection strip hole on the connecting plate in the vertical direction and removed from the detection strip hole on the lower connecting plate. The tip centering tool draws centering lines on both sides of the recording strip board, measures the distances between the centering lines on both sides of the recording strip board and the horizontal axis of the recording strip board, and calculates the difference distance between the centering lines on both sides; then the recording strip board is inserted into the detection strip hole on the connecting plate in the horizontal direction and removed from the detection strip hole on the lower connecting plate. The tip centering tool draws centering lines on both sides of the recording strip board, measures the distances between the centering lines on both sides of the recording strip board and the horizontal axis of the recording strip board, and calculates the difference distance between the centering lines on both sides; the centering detection of the gearbox and the intermediate bracket is completed.

[0016] Based on the above technical solutions, the following technical advantages have been achieved through practical application for the centering method of a marine gearbox and an intermediate bracket of the present invention:

[0017] 1. The present invention provides a method for centering a ship gearbox and an intermediate support. By setting a centering device and connecting the gearbox and the intermediate support, the centering measurement is facilitated and the measurement accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The invention discloses a sectional view of the installation of a centering device used in a method for centering a ship gear box and an intermediate bracket.

[0019] Figure 2 It is a front view of a centering device used in a centering method for a ship gear box and an intermediate bracket according to the present invention.

[0020] Figure 3 It is a schematic diagram of a recording strip plate used in a method for centering a ship gear box and an intermediate bracket according to the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0022] like Figure 1-3 As shown, the present invention belongs to a method for centering a ship gearbox and an intermediate bracket, and the method specifically comprises the following steps:

[0023] S1, after the gear box 1 and the intermediate bracket 2 are installed, the needle tip centering tool 3 is installed on the input flange end of the gear box 1 and the output flange end of the intermediate bracket 2 respectively;

[0024] S2, installing a centering device on one side of the input flange end of the gear box 1 and one side of the output flange end of the intermediate bracket 2 respectively;

[0025] S3, pass the recording strip 4 through the gap between the gear box 1 and the intermediate bracket 2, so that the needle tip centering tool 3 on the gear box 1 and the intermediate bracket 2 draws centering marks on the two sides of the recording strip 4, and judge whether the alignment of the gear box 1 and the intermediate bracket 2 meets the requirements through the error of the centering marks on both sides of the recording strip 4, and complete the alignment of the ship gear box 1 and the intermediate bracket 2.

[0026] By setting up the centering device and connecting the gear box 1 with the intermediate bracket 2, the centering measurement is facilitated and the measurement accuracy is improved.

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

[0028] The centering device includes a sleeve 5 and a connecting plate 6. The sleeve 5 is respectively installed on the input flange end of the gear box 1 and the output flange end of the intermediate bracket 2. The connecting plate 6 connects the sleeve 5 installed on the gear box 1 and the intermediate bracket 2. The sleeve 5 is a rectangular parallelepiped as a whole. Only a circular through hole is provided on the end face of the sleeve 5. A clamping plate is provided on one end face of the sleeve 5. A clamping groove is provided on each side of the sleeve 5. The connecting plate 6 is a U-shaped whole. When the connecting plate 6 is installed, both sides of the connecting plate 6 are clamped in the clamping grooves of the sleeve 5.

[0029] The centering device connects and fixes the gear box 1 and the intermediate bracket 2, thereby improving the equipment stability during centering measurement and reducing measurement errors.

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

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

[0032] The centering device performs centering specifically as follows: sleeves 5 are respectively sleeved on the input flange end of the gear box 1 and the output flange end of the intermediate bracket 2, one end of the sleeves 5 provided with a card slot is relatively arranged, and the sleeves 5 are respectively connected using connecting plates 6, firstly the recording strip plate 4 is inserted from the detection strip hole on the connecting plate 6 in the vertical direction and removed from the detection strip hole on the connecting plate 6 below, the needle tip centering tool 3 draws centering lines on both sides of the recording strip plate 4, the distances between the centering lines on both sides of the recording strip plate 4 and the horizontal axis 41 of the recording strip plate 4 are measured, and the difference distances between the centering lines on both sides are calculated; then the recording strip plate 4 is inserted from the detection strip hole on the connecting plate 6 in the horizontal direction and removed from the detection strip hole on the connecting plate 6 below, the needle tip centering tool 3 draws centering lines on both sides of the recording strip plate 4, the distances between the centering lines on both sides of the recording strip plate 4 and the horizontal axis 41 of the recording strip plate 4 are measured, and the difference distances between the centering lines on both sides are calculated; the centering detection of the gear box 1 and the intermediate bracket 2 is completed.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for centering a ship gearbox and an intermediate bracket, characterized in that: The method specifically comprises the following steps: S1, after the gearbox and the intermediate bracket are installed, install the needle tip centering tool on the input flange end of the gearbox and the output flange end of the intermediate bracket respectively; S2, install the centering device on one side of the input flange end of the gearbox and one side of the output flange end of the intermediate bracket respectively; S3, pass the recording strip through the gap between the gearbox and the intermediate bracket, so that the needle-tip alignment tools on the gearbox and the intermediate bracket draw alignment marks on the two sides of the recording strip, and judge whether the alignment of the gearbox and the intermediate bracket meets the requirements through the error of the alignment marks on both sides of the recording strip, and complete the alignment of the ship gearbox and the intermediate bracket.

2. A method for centering a ship gearbox and an intermediate bracket according to claim 1, characterized in that: The tail of the needle tip centering tool is respectively connected and fixed to the input flange end of the gear box and the output flange end of the intermediate bracket. The needle tip centering tool on the gear box and the needle tip centering tool on the intermediate bracket are arranged opposite to each other. The axis of the needle tip centering tool on the gear box coincides with the axis of the gear box, and the axis of the needle tip centering tool on the intermediate bracket coincides with the axis of the intermediate bracket.

3. A method for centering a ship gearbox and an intermediate bracket according to claim 1, characterized in that: The centering device includes a sleeve and a connecting plate. The sleeve is respectively installed on the input flange end of the gear box and the output flange end of the intermediate bracket. The connecting plate connects the sleeves installed on the gear box and the intermediate bracket. The sleeve is generally rectangular in shape. Only a circular through hole is provided on the end face of the sleeve. A clamping plate is provided on one end face of the sleeve. A clamping 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 clamped in the clamping grooves of the sleeve.

4. A method for centering a ship gearbox and an intermediate bracket according to claim 3, characterized in that: The end surface of the connecting plate is provided with detection strip holes. When the connecting plate is installed, the detection strip holes of the connecting plate in the vertical direction are installed symmetrically, and the detection strip holes of the connecting plate in the horizontal direction are installed symmetrically.

5. A method for centering a ship gearbox and an intermediate bracket according to claim 4, characterized in that: The recording strip is a long strip of cardboard as a whole. The width of the recording strip is smaller than the length of the detection strip hole of the connecting plate. Cross coordinate systems are respectively arranged on both sides of the recording strip. The horizontal axis in the coordinate system coincides with the center line of the recording strip. The surfaces on both sides of the recording strip are coated with a mixture of black paraffin and charcoal.

6. A method for centering a ship gearbox and an intermediate bracket according to claim 5, characterized in that: The centering device is specifically used for centering as follows: sleeves are respectively sleeved on the input flange end of the gear box and the output flange end of the intermediate bracket, one end of the sleeve provided with a slot is relatively arranged, and the sleeves are respectively connected using a connecting plate, firstly the recording strip plate is inserted from the detection strip hole on the connecting plate in the vertical direction and removed from the detection strip hole on the connecting plate below, a needle tip centering tool draws centering lines on both sides of the recording strip plate, the distances between the centering lines on both sides of the recording strip plate and the horizontal axis of the recording strip plate are measured, and the difference distances between the centering lines on both sides are calculated; then the recording strip plate is inserted from the detection strip hole on the connecting plate in the horizontal direction and removed from the detection strip hole on the connecting plate below, a needle tip centering tool draws centering lines on both sides of the recording strip plate, the distances between the centering lines on both sides of the recording strip plate and the horizontal axis of the recording strip plate are measured, and the difference distances between the centering lines on both sides are calculated; and the centering detection of the gear box and the intermediate bracket is completed.

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