A process for mounting an excitation shaft

Abstract

The application discloses a kind of excitation shaft launch process in the technical field of ship.The process includes the following steps: (1) install two rigid supports in engine room position, then the shaft is hoisted into engine room, the shaft is placed on rigid support, the rear end of the shaft is connected with tail shaft, and the shaft is fixed with tail shaft;(2) the position of the shaft close to magnetic pole is applied with upward tension, and downward pressure is applied at tail shaft;(3) remove the rigid support at the front end of the shaft, then lay the shaft track;(4) lay panel on the shaft track and shaft base;(5) arrange the shaft generator on the panel above the shaft track, then adjust the position of the shaft generator in left and right direction and the position of the shaft generator in up and down direction;(6) pull the shaft generator to move linearly along the shaft track until the shaft generator moves to the position of the shaft base, and the excitation shaft launch is in place;(7) remove the shaft track.The advantage of the present application is to improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a process for mounting an excitation shaft generator. Background Technology

[0002] Currently, the installation of excitation shaft generators on large ships first adopts a shaft generator track for shaft generator entry. After the shaft generator is in place, the shaft generator shaft is placed on the shaft generator track trolley. Using the track trolley and roller brackets, the shaft generator shaft is threaded from front to back into place. The installation steps are as follows: 1. Laying the shaft generator track; 2. Placing the shaft generator on the shaft generator track; 3. Shaft generator in place; 4. Removing the shaft generator track; 5. Laying the shaft generator shaft track; 6. Placing the shaft generator shaft on the shaft generator shaft track; 7. Shaft generator shaft in place; 8. Removing the shaft generator shaft track.

[0003] Problems and shortcomings of the current construction process:

[0004] 1. Two sets of tracks and roller brackets need to be manufactured, increasing manufacturing and management costs; moreover, both shaft-driven generators and shaft-driven generators entering the cabin require the tracks to be laid first, and the tracks need to be removed after entering the cabin, resulting in low work efficiency.

[0005] 2. The shaft entry track is relatively long and is laid inside the main engine recess, resulting in a large area of ​​paint damage and a large amount of paint repair work.

[0006] 3. After the shaft-driven generator is in place, during the insertion process, due to the small air gap between the stator of the shaft-driven generator body and the magnetic pole of the shaft-driven generator (approximately 5mm), the insertion length of the shaft-driven generator is relatively long. Multiple adjustments are required during the insertion process to ensure the air gap, resulting in low working efficiency. Summary of the Invention

[0007] The purpose of this invention is to address the above-mentioned problems by providing an excitation shaft mounting process that improves working efficiency.

[0008] To achieve the above-mentioned objectives, the excitation shaft mounting process of this invention adopts the following technical solution:

[0009] A process for mounting an excitation shaft includes the following steps:

[0010] 1. Install two rigid support components in the nacelle, then hoist the spindle into the nacelle and place the spindle on the rigid support components. The two rigid support components are used to support the front and rear ends of the spindle respectively. At the same time, the rear end of the spindle is connected to the tail shaft and the spindle is fixed to the tail shaft.

[0011] 2. A magnetic pole is set at the front end of the shaft. An upward pulling force is applied to the shaft close to the magnetic pole, while a downward pressure is applied to the tail shaft to maintain the horizontal posture of the shaft.

[0012] 3. Remove the rigid support at the front end of the shaft, then lay the shaft track, which is connected to the shaft base. The shaft base is located directly below the magnetic pole, and the height of the shaft track is the same as the height of the shaft base.

[0013] 4. Lay the entire panel on the launch rail and launch base;

[0014] This invention uses a single-panel design to allow the shaft-driven generator to move linearly along the panel, facilitating its smooth movement to the shaft-driven generator base for mounting. This avoids the need for welded shims on the shaft-driven generator base to interfere with the generator's movement.

[0015] 5. Place the shaft-driven generator on the panel above the shaft-driven generator track, and then adjust the left-right and up-down positions of the shaft-driven generator to ensure that the air gap between the stator of the shaft-driven generator and the shaft magnetic pole meets the requirements.

[0016] 6. Pull the shaft-driven generator to move it in a straight line along the shaft-driven generator track until the shaft-driven generator moves to the position of the shaft-driven generator base, the shaft of the shaft-driven generator extends into the shaft-driven generator, and the excitation shaft generator is mounted in place;

[0017] 7. Remove the shaft and track.

[0018] Preferably, the shaft-driven generator is placed on the panel by a support bolt, and a base plate is provided at the bottom end of the shaft-driven generator. The support bolt passes vertically through the base plate, and an upper locking nut and a lower locking nut are provided on the outer periphery of the support bolt. The upper locking nut is located above the base plate, and the lower locking nut is located below the base plate. The screw end of the support bolt passes through the base plate and contacts the panel.

[0019] Preferably, in step five, the left-right position of the shaft-driven generator is adjusted using a first adjusting assembly. This first adjusting assembly includes first adjusting bolts arranged on both sides of the shaft-driven generator. The threaded ends of the first adjusting bolts contact the sides of the shaft-driven generator, and the first adjusting bolts are arranged laterally. A lateral support plate is provided on the shaft-driven generator track, and the first adjusting bolts are threaded through the lateral support plate. When it is necessary to adjust the shaft-driven generator to the left, first adjust the first adjusting bolt on the left side of the shaft-driven generator so that it does not contact the sides of the shaft-driven generator, and then adjust the first adjusting bolt on the right side of the shaft-driven generator to push the shaft-driven generator to the left. When it is necessary to adjust the shaft-driven generator to the right, first adjust the first adjusting bolt on the right side of the shaft-driven generator so that it does not contact the sides of the shaft-driven generator, and then adjust the first adjusting bolt on the left side of the shaft-driven generator to push the shaft-driven generator to the right.

[0020] Preferably, the vertical position of the shaft-driven generator in step five is adjusted using a second adjusting assembly. This second adjusting assembly includes second adjusting bolts positioned at the four corners of the shaft-driven generator. The second adjusting bolts are vertically arranged, with their threads threaded through the base plate, and the ends of the bolts passing through the base plate. When the shaft-driven generator needs to be adjusted downwards, first, the second adjusting bolts are moved upwards; then, the bottom of the support bolts is adjusted to be flush with the bottom of the second adjusting bolts; finally, the lower end of the second bolts is adjusted so that it does not contact the panel. When the shaft-driven generator needs to be adjusted upwards, first, the second adjusting bolts are moved downwards; then, the bottom of the support bolts is adjusted to be flush with the bottom of the second adjusting bolts; finally, the lower end of the second bolts is adjusted so that it does not contact the panel.

[0021] Preferably, in step two, the upward pulling force applied to the shaft is suspended by a hoist.

[0022] Preferably, in step two, the downward pressure applied to the tail shaft is achieved by using a jack.

[0023] Preferably, in step six, an axial hoist is used to pull the shaft-driven generator along the shaft track.

[0024] Preferably, the end of the support bolt is provided with a rounded surface.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. In this invention, the shaft generator is first mounted in place, then the shaft generator track is laid, the shaft generator is placed on the track, and then the shaft generator is mounted in place. Therefore, compared with the prior art, this invention reduces the number of steps and greatly shortens the operation time.

[0027] 2. During operation, the shaft-driven generator has a shorter entry distance into the cabin, making it easier to adjust and reducing quality accidents caused by collisions during entry, thus improving construction quality and operational safety.

[0028] 3. This invention only requires laying shaft launcher tracks, and the laying distance of the shaft launcher tracks is relatively short. Compared with the existing technology, it reduces labor consumption, tooling production, and material usage, thereby reducing costs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 for Figure 1 Enlarged view of part A;

[0031] Figure 3 for Figure 1 Side view;

[0032] Figure 4 for Figure 3 Enlarged view of part B.

[0033] Among them, 1 is the tail shaft, 2 is the jack, 3 is the generator shaft, 301 is the magnetic pole, 4 is the hoist, 5 is the shaft with generator, 501 is the stator, 502 is the base plate, 6 is the second adjusting bolt, 7 is the generator track, 8 is the rigid support, 9 is the generator base, 10 is the panel, 11 is the axial hoist, 12 is the support bolt, 12a is the arc surface, 13 is the upper locking nut, 14 is the lower locking nut, 15 is the lateral support plate, and 16 is the first adjusting bolt. Detailed Implementation

[0034] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0035] like Figure 1-4 As shown, an excitation shaft mounting process includes the following steps:

[0036] 1. Install two rigid support members 8 in the nacelle, and then hoist the spindle 3 into the nacelle. The spindle 3 is placed on the rigid support members 8. The two rigid support members 8 are used to support the front end and rear end of the spindle 3 respectively. At the same time, the rear end of the spindle 3 is connected to the tail shaft 1, and the spindle 3 is fixed to the tail shaft 1.

[0037] 2. A magnetic pole 301 is set at the front end of the shaft 3. The shaft 3 is suspended by a hoist 4 close to the magnetic pole 301. The hoist 4 applies an upward pulling force, while the tail shaft 1 is pressed down by a jack 2. The jack 2 applies a downward pressure to maintain the horizontal posture of the shaft 3.

[0038] 3. Remove the rigid support 8 at the front end of the shaft 3, and then lay the shaft track 7. The shaft track 7 is connected to the shaft base 9. The shaft base 9 is located directly below the magnetic pole 301. The height of the shaft track 7 is the same as the height of the shaft base 9.

[0039] IV. Lay the panel 10 on the launch track 7 and launch base 9;

[0040] 5. Place the shaft-driven generator 5 on the panel 10 above the shaft-driven generator track 7, and then adjust the left-right and up-down positions of the shaft-driven generator 5 so that the air gap between the stator 501 and the shaft magnetic pole 301 of the shaft-driven generator 5 meets the requirements.

[0041] The shaft-driven generator 5 is placed on the panel 10 by a support bolt 12. The bottom end of the shaft-driven generator 5 is provided with a base plate 502. The support bolt 12 passes vertically through the base plate 502. The outer periphery of the support bolt 12 is provided with an upper locking nut 13 and a lower locking nut 14. The upper locking nut 13 is located above the base plate 502, and the lower locking nut 14 is located below the base plate 502. The screw end of the support bolt 12 passes through the base plate 502 and contacts the panel 10. The screw end of the support bolt 12 is provided with an arc surface 12a.

[0042] The position of the shaft-driven generator 5 in the left and right directions is adjusted by a first adjustment component. The first adjustment component includes first adjustment bolts 16 arranged on both sides of the shaft-driven generator 5. The screw end of the first adjustment bolt 16 contacts the side of the shaft-driven generator 5. The first adjustment bolt 16 is arranged laterally. A lateral support plate 15 is provided on the shaft-driven track 7. The first adjustment bolt 16 is threaded through the lateral support plate 15.

[0043] The vertical position of the shaft-driven generator 5 is adjusted by a second adjustment assembly. The second adjustment assembly includes second adjustment bolts 6 located at the four corners of the shaft-driven generator 5. The second adjustment bolts 6 are arranged vertically and threaded through the seat plate 502. The screw end of the second adjustment bolt 6 passes through the seat plate 502.

[0044] 6. Use the axial hoist 11 to pull the shaft-driven generator 5 to move linearly along the shaft-driven generator track 7 until the shaft-driven generator 5 moves to the position of the shaft-driven generator base 9, the shaft-driven generator shaft 3 extends into the shaft-driven generator 5, and the excitation shaft generator is mounted in place;

[0045] 7. Remove the shaft and track 7.

[0046] The specific working process and principle of this invention are as follows: First, the shaft generator 3 is mounted in place, then the shaft generator track 7 is laid, and the shaft-driven generator 5 is placed on the shaft generator track. Then, the vertical and horizontal positions of the shaft-driven generator 5 are adjusted. When adjusting the vertical direction, first adjust the second adjusting bolt 6, then adjust the lower end of the support bolt 12 to be flush with the lower end of the second adjusting bolt 6, and finally adjust the lower end of the second bolt to not contact the panel 10. When adjusting the horizontal direction, the first bolts on both sides are adjusted, and the shaft-driven generator 5 is moved by pushing the first bolt on one side. After the position adjustment is completed, the shaft-driven generator 5 is pulled to move linearly. The shaft-driven generator 5 moves linearly on the panel 10 through the support bolt 12, and finally the shaft-driven generator 5 is pulled to the shaft generator base 9 for mounting. Since the shaft-driven generator 5 has a short entry distance into the cabin, the adjustment process is simple. This not only improves the mounting efficiency, but also reduces the cost of manufacturing the track and reduces the risk during the entry process.

[0047] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A process for mounting an excitation shaft, characterized in that, Includes the following steps:

1. Install two rigid support components in the nacelle, then hoist the spindle into the nacelle and place the spindle on the rigid support components. The two rigid support components are used to support the front and rear ends of the spindle respectively. At the same time, the rear end of the spindle is connected to the tail shaft and the spindle is fixed to the tail shaft.

2. A magnetic pole is set at the front end of the shaft. An upward pulling force is applied to the shaft close to the magnetic pole, while a downward pressure is applied to the tail shaft to maintain the horizontal posture of the shaft.

3. Remove the rigid support at the front end of the shaft, and then lay the shaft track. The shaft track is connected to the shaft base, which is located directly below the magnetic pole. The height of the shaft track is the same as the height of the shaft base.

4. Lay the entire panel on the launch rail and launch base; 5. The shaft-driven generator is arranged on the panel above the shaft-driven generator track. The shaft-driven generator is placed on the panel by support bolts. A base plate is set at the bottom of the shaft-driven generator. The support bolts pass vertically through the base plate. An upper locking nut and a lower locking nut are provided on the outer periphery of the support bolts. The upper locking nut is located above the base plate, and the lower locking nut is located below the base plate. The screw end of the support bolt passes through the base plate and contacts the panel. Then adjust the left-right position and the up-down position of the shaft-driven generator to make the air gap between the stator and the shaft magnetic poles of the shaft-driven generator meet the requirements. The left and right positions of the shaft-driven generator are adjusted by a first adjustment component. The first adjustment component includes first adjustment bolts arranged on both sides of the shaft-driven generator. The screw end of the first adjustment bolt contacts the side of the shaft-driven generator. The first adjustment bolt is arranged laterally. A lateral support plate is provided on the shaft-driven generator track. The first adjustment bolt is threaded through the lateral support plate. The vertical position of the shaft-driven generator is adjusted by a second adjustment assembly. The second adjustment assembly includes second adjustment bolts located at the four corners of the shaft-driven generator. The second adjustment bolts are arranged vertically, and the threads of the second adjustment bolts pass through the seat plate. The screw end of the second adjustment bolt passes through the seat plate.

6. Pull the shaft-driven generator to move it in a straight line along the shaft-driven generator track until the shaft-driven generator moves to the position of the shaft-driven generator base, the shaft of the shaft-driven generator extends into the shaft-driven generator, and the excitation shaft generator is mounted in place; 7. Remove the shaft and track.

2. The excitation shaft mounting process according to claim 1, characterized in that: In step two, the shaft is subjected to an upward pulling force by using a hoist for suspension.

3. The excitation shaft mounting process according to claim 1, characterized in that: In step two, applying downward pressure to the tail shaft is done by using a jack.

4. The excitation shaft mounting process according to claim 1, characterized in that: In step six, an axial hoist is used to pull the shaft-driven generator along the shaft track.

5. The excitation shaft mounting process according to claim 1, characterized in that: The end of the support bolt is set as an arc surface.

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