Fixing device for spare parts for marine main engine

Abstract

The invention relates to the technical field of ship appliances, and discloses a fixing device for a spare part for a ship main engine, the fixing device comprises a welding base and the spare part, the welding base is welded on a ship deck, a fixing disc is fixedly mounted at the top of the welding base, the spare part is placed in the fixing disc, and a buffer mechanism is arranged between the fixing disc and the spare part. The spare parts are placed in the hoops, the spare parts are limited, the lead screws penetrate through the bolt holes in the spare parts, then the nuts are used for fixing, the spare parts are fixed, and when a ship shakes, the lead screws can deviate when the spare parts shake due to the fact that the sliding pieces at the bottoms of the welding wire seats can slide; the elastic piece is located on the springback piece and the buffering piece and used for pushing the welding wire base to reset, then the lead screw is driven to reset, the rubber column in the first circular groove serves as the springback piece and the buffering piece to push the hoop to reset, and therefore the spare part is reset.

Description

Technical Field

[0001] The invention relates to the technical field of ship equipment, in particular to a fixing device for spare parts of a main engine of a ship. Background Art

[0002] Generally, the main engine of a ship is equipped with spare parts such as cylinder head and exhaust valve, which are large in size and inconvenient to pack and store. At the same time, these spare parts need to be installed and fixed on the deck around the main engine for easy access. The existing fixing devices for fixing the cylinder head and exhaust valve are relatively simple in structure, and most of them use welding wire seats and screw rods to fix the cylinder head and exhaust valve. Then, when the ship is at sea, it will shake, which will cause the screw rod to rub violently with the inner wall of the bolt hole on the cylinder head and exhaust valve, which is easy to cause damage to the bolt hole, and then cause the cylinder head and exhaust valve to be loosely installed during installation. Summary of the invention

[0003] The object of the present invention is to provide a fixing device for spare parts of a main engine of a ship, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a fixing device for a spare part of a ship main engine, comprising a welding base and a spare part, wherein the welding base is welded on a ship deck, a fixing plate is fixedly installed on the top of the welding base, the spare part is placed in the fixing plate, and a buffer mechanism is arranged between the fixing plate and the spare part; The buffer mechanism includes a clamp, a circular groove one, and a circular groove two, wherein the circular groove one is opened at the center of the fixed disk, and the circular groove two is opened at the top of the fixed disk, the clamp is slidably arranged in the circular groove one, and the bottom end of the spare part is inserted into the clamp, a rubber column is fixedly installed on the inner wall of the circular groove one, and the rubber column is fixedly connected to the outer wall of the clamp facing one end of the clamp, six rubber columns are provided and distributed in an array around the circumference of the clamp, a sliding part is slidably arranged inside the circular groove two, a welding wire seat is fixedly installed on the top of the sliding part, a screw rod is threadedly connected to the inner wall of the welding wire seat, the screw rod passes through the bolt hole on the spare part, a nut is threadedly sleeved on the outer wall of the screw rod, and the nut is pressed on the spare part, an elastic part is fixedly installed on the inner wall of the circular groove two, and the elastic part is movably sleeved on the sliding part, a limiting component is fixedly installed on the top of the welding base, and the movable end of the limiting component contacts the outer wall of the spare part.

[0005] Furthermore, there are four circular grooves 2, which are distributed in a circular array around the axis of the fixed disk. The bottom end of the sliding member is located below the fixed disk. Skirts are provided on the upper and lower surfaces of the clamp, and the diameter of the skirt is larger than the inner diameter of circular groove 1. A wooden block is fixedly installed on the inner wall of the clamp, and the wooden block is located below the spare part.

[0006] Furthermore, the elastic part includes three rigid arc edges and six elastic metal edges, and the ends of the three rigid arc edges are not fixedly connected to the inner wall of the circular groove 2, the ends of the six elastic metal edges are fixedly connected to the inner wall of the circular groove 2, and the three rigid arc edges are in contact with the outer wall of the sliding part.

[0007] Furthermore, four limiting components are provided and distributed in a circular array around the axis of the fixed disk, and the movable ends of the four limiting components are in contact with the outer wall of the spare part.

[0008] Furthermore, the limiting component includes an articulated seat 1, which is fixedly installed on the top of the welding base, the inner wall of the articulated seat 1 is rotatably connected to a rotating shaft through a bearing, the outer wall of the rotating shaft is fixedly installed with a hinge rod, the top end of the hinge rod is hinged to an articulated seat 2 through a pin shaft, a rubber plate is fixedly installed on the outer wall of the articulated seat 2 facing the spare part, the rubber plate is the movable end of the limiting component, a anti-rotation plate is fixedly installed on the outer wall of the articulated seat 1 away from the spare part, and a buffer component is provided on the outer wall of the rotating shaft.

[0009] Furthermore, the buffer component includes a gear and a slide rail, the gear is fixedly mounted on the outer wall of the rotating shaft, the slide rail is fixedly mounted on the top of the welding base, a slide rod is fixedly mounted on the inner wall of the slide rail, a slide plate is slidingly sleeved on the outer wall of the slide rod, a rack is fixedly mounted on the top of the slide plate, the rack is meshed with the gear, a spring is fixedly mounted on the outer wall of the slide plate, and one end of the spring away from the slide plate is fixedly connected to the inner wall of the slide rail.

[0010] Furthermore, there are two gears on the rotating shaft, which are symmetrically arranged about the center of the rotating shaft, and springs are fixedly installed on the outer walls of both sides of the slide plate.

[0011] Furthermore, a circular rail is fixedly installed on the outer wall of the welding base, a frame is slidably arranged on the circular rail, a plurality of frames are arranged, and a rainproof cloth is fixedly installed between two adjacent frames.

[0012] Furthermore, the skeleton includes a sphere and an L-shaped rod. The sphere is slidably arranged in a circular rail. The L-shaped rod is fixedly connected to the sphere. The top end of the L-shaped rod is higher than the top end of the spare part.

[0013] Furthermore, a magnet sheet is fixedly mounted on the top end of the L-shaped rod, and the magnet sheet is an arc plate, and the magnetic poles on adjacent magnet sheets are opposite.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The spare parts are placed in the clamp to limit the position of the spare parts. The screw rod is passed through the bolt hole on the spare parts and then fixed with nuts to fix the spare parts. When the ship shakes, the sliding part at the bottom of the welding wire seat can slide, so that the screw rod can be offset when the spare parts shake, thereby reducing the wear of the screw rod and the bolt hole on the spare parts. The elastic part is located in the rebound and buffer part to push the welding wire seat to reset, thereby driving the screw rod to reset, and the rubber column in the circular groove 1 also acts as a rebound part and a buffer part to push the clamp to reset, so that the spare parts are reset; 2. A limit component is provided to limit the maximum sliding distance of the spare part, so as to prevent the sliding distance of the spare part from exceeding the sliding range of the sliding part, thereby causing the screw rod to still have distance friction with the bolt hole bracket on the spare part; 3. Through the transmission of gears and racks, the rotation of the shaft can drive the rack to move, and then drive the skateboard to move. The movement of the skateboard squeezes or stretches the spring, and the impact is buffered by the squeezing and stretching of the spring; 4. Circular rails are set up to guide and limit the skeleton, and the skeleton is set up to install and support the rainproof cloth. The rainproof cloth is set up to shield the spare parts from rain and sun, reducing the aging of the spare parts caused by the external environment. When placing and taking the spare parts, multiple skeletons can be retracted together. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure in a front cross-sectional view; Figure 3 This is a structural schematic diagram of an exploded view of a buffer mechanism in Embodiment 1 of the present invention; Figure 4 This is a schematic structural diagram of a welding wire holder and a wire rod in Embodiment 1 of the present invention; Figure 5 This is a structural schematic diagram of an exploded view of a limiting component in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the structure of the frame and the rainproof cloth in the second embodiment of the present invention; Figure 8 It is a schematic diagram of the structure of the skeleton in the second embodiment of the present invention.

[0016] In the figure: 1. welding base; 2. fixing plate; 3. spare parts; 4. buffer mechanism; 401. clamp; 402. circular groove one; 403. rubber column; 404. circular groove two; 405. elastic member; 406. sliding member; 407. welding wire seat; 408. screw rod; 409. limiting component; 4091. hinge seat one; 4092. rotating shaft; 4093. hinge rod; 4094. hinge seat two; 4095. rubber plate; 4096. anti-rotation plate; 4097. buffer component; 40971. gear; 40972. rack; 40973. spring; 40974. slide plate; 40975. slide rod; 40976. slide rail; 5. pad; 6. circular rail; 7. frame; 8. rainproof cloth; 701. ball; 702. L-shaped rod; 9. magnet sheet. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Embodiment 1 See also Figure 1-Figure 5 The present invention provides a technical solution: a fixing device for spare parts for a ship main engine, comprising a welding base 1 and a spare part 3, wherein the welding base 1 is welded on the ship deck, a fixing plate 2 is fixedly installed on the top of the welding base 1, the spare part 3 is placed in the fixing plate 2, and a buffer mechanism 4 is arranged between the fixing plate 2 and the spare part 3; The buffer mechanism 4 includes a clamp 401, a circular groove 1 402, and a circular groove 2 404. The circular groove 1 402 is opened at the center of the fixed disk 2, and the circular groove 2 404 is opened at the top of the fixed disk 2. The clamp 401 is slidably arranged in the circular groove 1 402. The bottom end of the spare part 3 is inserted into the clamp 401. A rubber column 403 is fixedly installed on the inner wall of the circular groove 1 402. One end of the rubber column 403 facing the clamp 401 is fixedly connected to the outer wall of the clamp 401. Six rubber columns 403 are arranged and surround the clamp 401. The circular array is arranged, the inner sliding part 406 of the circular groove 404 is provided with a sliding part 406, the top of the sliding part 406 is fixedly provided with a welding wire seat 407, the inner wall of the welding wire seat 407 is threadedly connected with a screw rod 408, the screw rod 408 passes through the bolt hole on the spare part 3, the outer wall of the screw rod 408 is threadedly provided with a nut, and the nut is pressed on the spare part 3, the inner wall of the circular groove 404 is fixedly provided with an elastic part 405, the elastic part 405 is movably provided on the sliding part 406, and the top of the welding base 1 is fixedly provided with a welding wire seat 407. A limiting component 409 is installed, and the movable end of the limiting component 409 contacts the outer wall of the spare part 3. The spare part 3 is limited by placing the spare part 3 in the clamp 401, and the spare part 3 is fixed by passing the screw rod 408 through the bolt hole on the spare part 3 and then fixing it with a nut. When the ship shakes, the sliding member 406 at the bottom of the welding wire seat 407 can slide, so that the screw rod 408 can be offset when the spare part 3 shakes, thereby reducing the wear between the screw rod 408 and the bolt hole on the spare part 3. The elastic member 405 is located in the rebound and buffer member to push the welding wire seat 407 to reset, thereby driving the screw rod 408 to reset, and the rubber column 403 in the circular groove 1 402 also acts as a rebound member and a buffer member to push the clamp 401 to reset, so that the spare part 3 is reset, and a limit component 409 is provided to limit the maximum sliding distance of the spare part 3 to prevent the sliding distance of the spare part 3 from exceeding the sliding range of the sliding member 406, so that the screw rod 408 still has a distance friction with the bolt hole bracket on the spare part 3; There are four circular grooves 404 arranged in a circular array around the axis of the fixing plate 2, so that the spare part 3 is fixed from multiple positions at the same time, thereby improving the fixing stability of the spare part 3. The bottom end of the sliding part 406 is located below the fixing plate 2, so as to prevent the sliding part 406 from being separated from the circular groove 404. The upper and lower surfaces of the clamp 401 are provided with skirts, and the diameter of the skirts is larger than the inner diameter of the circular groove 402, so as to prevent the clamp 401 from being separated from the circular groove 402. A pad 5 is fixedly installed on the inner wall of the clamp 401, and the pad 5 is located below the spare part 3. The pad 5 is provided to separate the spare part 3 from the deck, so as to prevent the bottom end of the spare part 3 from directly colliding and rubbing with the deck. The elastic member 405 includes three rigid arc edges and six elastic metal edges, and the ends of the three rigid arc edges are not fixedly connected to the inner wall of the second circular groove 404, the ends of the six elastic metal edges are fixedly connected to the inner wall of the second circular groove 404, and the three rigid arc edges are in contact with the outer wall of the sliding member 406. The plurality of metal elastic edges are provided so that the elastic member 405 can be deformed by force and then rebound. The three rigid arc edges are provided to limit the sliding member 406, so that when the sliding member 406 slides, the outer wall of the sliding member 406 is always in contact with the rigid arc edges on the elastic member 405, ensuring that the elastic force on the elastic member 405 can be transmitted to the sliding member 406; There are four limiting components 409, which are arranged in a circular array around the axis of the fixed plate 2. The movable ends of the four limiting components 409 are in contact with the outer wall of the spare part 3, and the maximum sliding distance of the spare part 3 is limited from multiple angles to ensure the limiting effect of the spare part 3. The limiting component 409 includes an articulated seat 4091, which is fixedly installed on the top of the welding base 1. The inner wall of the articulated seat 4091 is rotatably connected to a rotating shaft 4092 through a bearing, and a hinge rod 4093 is fixedly installed on the outer wall of the rotating shaft 4092. The top of the articulated rod 4093 is hinged to an articulated seat 2 4094 through a pin shaft. A rubber plate 4095 is fixedly installed on the outer wall of the articulated seat 2 4094 facing the spare part 3. The rubber plate 4095 is the movable end of the limiting component 409, and a rotation-stop plate is fixedly installed on the outer wall of the articulated seat 4091 away from the spare part 3 4096, a buffer component 4097 is provided on the outer wall of the rotating shaft 4092, and a rotation-stop plate 4096 is provided to limit the maximum rotation range of the hinged rod 4093, thereby limiting the maximum sliding distance of the spare part 3, and a hinge seat 4094 is provided to connect the hinged rod 4093 and the rubber plate 4095, and the rubber plate 4095 is provided to prevent the spare part 3 from directly colliding with the hinged rod 4093 when sliding, and at the same time, it acts as a buffer to buffer the impact of the spare part 3 on the hinged rod 4093, and a buffer component 4097 is provided to buffer the kinetic energy of the hinged rod 4093 when rotating; The buffer component 4097 includes a gear 40971 and a slide rail 40976. The gear 40971 is fixedly mounted on the outer wall of the rotating shaft 4092. The slide rail 40976 is fixedly mounted on the top of the welding base 1. A slide bar 40975 is fixedly mounted on the inner wall of the slide rail 40976. A slide plate 40974 is slidingly sleeved on the outer wall of the slide bar 40975. A rack 40972 is fixedly mounted on the top of the slide plate 40974. The rack 40972 meshes with the gear 40971. The slide plate A spring 40973 is fixedly installed on the outer wall of 40974. One end of the spring 40973 away from the slide plate 40974 is fixedly connected to the inner wall of the slide rail 40976. The spring 40973 is driven by the gear 40971 and the rack 40972, so that when the rotating shaft 4092 rotates, the rack 40972 can be driven to move, thereby driving the slide plate 40974 to move. The movement of the slide plate 40974 squeezes or stretches the spring 40973, and the impact is buffered by the squeezing and stretching of the spring 40973. There are two gears 40971 on the rotating shaft 4092, and they are symmetrically arranged about the center of the rotating shaft 4092, and springs 40973 are fixedly installed on the outer walls of both sides of the slide plate 40974. Two springs 40973 are set to increase the buffering effect, and two gears 40971 are set to increase the corresponding buffering parts 4097, thereby improving the buffering of the rotation of the hinged rod 4093.

[0019] Working principle: When in use, select the corresponding clamp 401 according to the specifications of the spare part 3, then install the clamp 401 into the circular groove 402, then place the spare part 3 in the clamp 401, pass the screw rod 408 through the bolt hole on the spare part 3, then screw the bottom end of the screw rod 408 into the welding wire seat 407, screw the nut on the screw rod 408 to fix the spare part 3, when the ship shakes, the screw rod 408 can be offset, thereby reducing the wear of the screw rod 408 and the bolt holes on the spare part 3, at this time, the elastic part 405 is located in the rebound and buffer part, pushing the welding wire seat 407 to reset, and then driving the screw rod 408 to reset, and the rubber column 403 in the circular groove 402 also acts as a rebound part and a buffer part to push the clamp 401 to reset, so that The spare part 3 is reset. When the spare part 3 slides, it pushes the rubber plate 4095 to move, and then pushes the hinge rod 4093 to rotate. After the hinge rod 4093 rotates to a certain angle, it contacts the anti-rotation plate 4096 and cannot continue to rotate, so as to prevent the sliding distance of the spare part 3 from exceeding the sliding range of the sliding part 406, so that the screw rod 408 still has a distance friction with the bolt hole bracket on the spare part 3. When the hinge rod 4093 rotates, it drives the rotating shaft 4092 to rotate, and then drives the gear 40971 to rotate. The rotation of the gear 40971 drives the rack 40972 to move, and then drives the slide plate 40974 to move. The slide plate 40974 moves to squeeze or stretch the spring 40973, and the squeezing and stretching of the spring 40973 buffer the impact.

[0020] Embodiment 2 See also Figure 6-Figure 8 The present invention provides a technical solution: a fixing device for spare parts for a ship main engine, comprising a welding base 1 and a spare part 3, wherein the welding base 1 is welded on the ship deck, a fixing plate 2 is fixedly installed on the top of the welding base 1, the spare part 3 is placed in the fixing plate 2, and a buffer mechanism 4 is arranged between the fixing plate 2 and the spare part 3; The buffer mechanism 4 includes a clamp 401, a circular groove 1 402, and a circular groove 2 404. The circular groove 1 402 is arranged at the center of the fixed disk 2, and the circular groove 2 404 is arranged at the top of the fixed disk 2. The clamp 401 is slidably arranged in the circular groove 1 402. The bottom end of the spare part 3 is inserted into the clamp 401. A rubber column 403 is fixedly installed on the inner wall of the circular groove 1 402. One end of the rubber column 403 facing the clamp 401 is fixedly connected to the outer wall of the clamp 401. Six rubber columns 403 are arranged and are distributed in an array around the circumference of the clamp 401. The inner wall of the circular groove 2 404 is fixedly connected to the outer wall of the clamp 401. The upper part of the welding base 1 is provided with a sliding member 406, and a welding wire seat 407 is fixedly installed on the top of the sliding member 406. The inner wall of the welding wire seat 407 is threadedly connected with a screw rod 408, and the screw rod 408 passes through the bolt hole on the spare part 3. The outer wall of the screw rod 408 is threadedly sleeved with a nut, and the nut is pressed on the spare part 3. The inner wall of the circular groove 404 is fixedly provided with an elastic member 405, and the elastic member 405 is movably sleeved on the sliding member 406. A limiting component 409 is fixedly installed on the top of the welding base 1, and the movable end of the limiting component 409 contacts the outer wall of the spare part 3. There are four circular grooves 404 arranged in a circular array around the axis of the fixed plate 2. The bottom end of the sliding member 406 is located below the fixed plate 2. The upper and lower surfaces of the clamp 401 are provided with skirts, and the diameter of the skirt is larger than the inner diameter of the circular groove 402. A pad 5 is fixedly installed on the inner wall of the clamp 401, and the pad 5 is located below the spare part 3. The elastic member 405 includes three rigid arc edges and six elastic metal edges, and the ends of the three rigid arc edges are not fixedly connected to the inner wall of the second circular groove 404, the ends of the six elastic metal edges are fixedly connected to the inner wall of the second circular groove 404, and the three rigid arc edges are in contact with the outer wall of the sliding member 406; There are four limiting components 409, which are arranged in a circular array around the axis of the fixed plate 2, and the movable ends of the four limiting components 409 are in contact with the outer wall of the spare part 3; The limiting component 409 includes an articulated seat 1 4091, which is fixedly mounted on the top of the welding base 1, an inner wall of the articulated seat 1 4091 is rotatably connected to a rotating shaft 4092 through a bearing, an outer wall of the rotating shaft 4092 is fixedly mounted with an articulated rod 4093, the top end of the articulated rod 4093 is hingedly connected to an articulated seat 2 4094 through a pin, a rubber plate 4095 is fixedly mounted on the outer wall of the articulated seat 2 4094 facing the spare part 3, the rubber plate 4095 is the movable end of the limiting component 409, a rotation-stopping plate 4096 is fixedly mounted on the outer wall of the articulated seat 1 4091 away from the spare part 3, and a buffer component 4097 is provided on the outer wall of the rotating shaft 4092; The buffer component 4097 includes a gear 40971 and a slide rail 40976. The gear 40971 is fixedly mounted on the outer wall of the rotating shaft 4092. The slide rail 40976 is fixedly mounted on the top of the welding base 1. A slide bar 40975 is fixedly mounted on the inner wall of the slide rail 40976. A slide plate 40974 is slidably sleeved on the outer wall of the slide bar 40975. A rack 40972 is fixedly mounted on the top of the slide plate 40974. The rack 40972 is meshed with the gear 40971. A spring 40973 is fixedly mounted on the outer wall of the slide plate 40974. One end of the spring 40973 away from the slide plate 40974 is fixedly connected to the inner wall of the slide rail 40976. There are two gears 40971 on the rotating shaft 4092, and they are symmetrically arranged about the center of the rotating shaft 4092, and springs 40973 are fixedly installed on the outer walls of both sides of the slide plate 40974; A circular rail 6 is fixedly installed on the outer wall of the welding base 1, and a skeleton 7 is slidably arranged on the circular rail 6. A plurality of skeletons 7 are arranged, and a rainproof cloth 8 is fixedly installed between two adjacent skeletons 7. The circular rail 6 is arranged to guide and limit the skeleton 7, and the skeleton 7 is arranged to install and support the rainproof cloth 8. The rainproof cloth 8 is arranged to shield the spare parts 3 from rain and sun, thereby reducing the aging of the spare parts 3 caused by the external environment, and when placing and taking the spare parts 3, the plurality of skeletons 7 can be retracted together; The skeleton 7 includes a ball 701 and an L-shaped rod 702. The ball 701 is slidably arranged in the circular track 6. The L-shaped rod 702 is fixedly connected to the ball 701. The top of the L-shaped rod 702 is higher than the top of the spare part 3. Because the ball 701 is spherical, the ball 701 can not only slide in the circular track 6, but also rotate in the circular track 6. Even if the skeleton 7 can be tilted, the skeleton 7 will not hinder the placement of the spare part 3, because the top of the L-shaped rod 702 is higher than the spare part 3, ensuring that the rainproof cloth 8 on the skeleton 7 can fully cover the spare part 3. A magnet sheet 9 is fixedly installed at the top end of the L-shaped rod 702. The magnet sheet 9 is an arc plate, and the magnetic poles of adjacent magnet sheets 9 are opposite. After the multiple frames 7 are separated to open the rainproof cloth 8, the magnet sheets 9 are adsorbed together to prevent the outer cover formed after the rainproof cloth 8 is opened from opening.

[0021] Working principle: When in use, after folding the frame 7 together, rotate the frame 7 to make it tilt. At this time, the frame 7 will not cover the top of the fixed plate 2. Place the spare part 3 in the clamp 401, and then straighten the frame 7. Pull the frame 7 to open the rainproof cloth 8, so that the rainproof cloth 8 forms a rain shield to protect the spare part 3, and the magnet pieces 9 at the top of the frame 7 are adsorbed together to prevent the rain shield formed by the rainproof cloth 8 from opening.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A device for fixing spare parts for a main engine of a ship, comprising a welding base (1) and a spare part (3), characterized in that: The welding base (1) is welded on the deck of the ship, a fixing plate (2) is fixedly mounted on the top of the welding base (1), the spare parts (3) are placed in the fixing plate (2), and a buffer mechanism (4) is provided between the fixing plate (2) and the spare parts (3); The buffer mechanism (4) comprises a clamp (401), a circular groove 1 (402), and a circular groove 2 (404), wherein the circular groove 1 (402) is provided at the center of the fixed disk (2), and the circular groove 2 (404) is provided at the top of the fixed disk (2). The clamp (401) is slidably arranged in the circular groove 1 (402), and the bottom end of the spare part (3) is inserted into the clamp (401). A rubber column (403) is fixedly installed on the inner wall of the circular groove 1 (402), and one end of the rubber column (403) facing the clamp (401) is fixedly connected to the outer wall of the clamp (401). Six rubber columns (403) are provided and are distributed in an array around the circumference of the clamp (401). The circular groove 2 (404) is provided in a plurality of positions. 4) is provided with a sliding member (406) for internal sliding, a welding wire seat (407) is fixedly installed on the top of the sliding member (406), a screw rod (408) is threadedly connected to the inner wall of the welding wire seat (407), the screw rod (408) passes through the bolt hole on the spare part (3), a nut is threadedly sleeved on the outer wall of the screw rod (408), and the nut is pressed on the spare part (3), an elastic member (405) is fixedly installed on the inner wall of the circular groove (404), and the elastic member (405) is movably sleeved on the sliding member (406), and a limiting component (409) is fixedly installed on the top of the welding base (1), and the movable end of the limiting component (409) contacts the outer wall of the spare part (3).

2. A fixing device for spare parts for a main engine of a ship according to claim 1, characterized in that: The second circular groove (404) is provided with four and is distributed in a circular array around the axis of the fixed disk (2). The bottom end of the sliding member (406) is located below the fixed disk (2). The upper and lower surfaces of the clamp (401) are provided with skirts, and the diameter of the skirt is larger than the inner diameter of the first circular groove (402). A pad (5) is fixedly installed on the inner wall of the clamp (401), and the pad (5) is located below the spare part (3).

3. A fixing device for spare parts for a main engine of a ship according to claim 1, characterized in that: The elastic member (405) includes three rigid arc edges and six elastic metal edges, and the ends of the three rigid arc edges are not fixedly connected to the inner wall of the second circular groove (404), the ends of the six elastic metal edges are fixedly connected to the inner wall of the second circular groove (404), and the three rigid arc edges are in contact with the outer wall of the sliding member (406).

4. A fixing device for spare parts for a main engine of a ship according to claim 1, characterized in that: Four limiting components (409) are provided and are distributed in a circular array around the axis of the fixed disk (2), and the movable ends of the four limiting components (409) are in contact with the outer wall of the spare part (3).

5. A fixing device for spare parts for a main engine of a ship according to claim 1, characterized in that: The limiting component (409) comprises an articulated seat 1 (4091), wherein the articulated seat 1 (4091) is fixedly mounted on the top of the welding base (1), the inner wall of the articulated seat 1 (4091) is rotatably connected to a rotating shaft (4092) via a bearing, a hinge rod (4093) is fixedly mounted on the outer wall of the rotating shaft (4092), the top end of the articulated rod (4093) is hingedly connected to an articulated seat 2 (4094) via a pin, a rubber plate (4095) is fixedly mounted on the outer wall of the articulated seat 2 (4094) on a side facing the spare part (3), the rubber plate (4095) is the movable end of the limiting component (409), a rotation-stopping plate (4096) is fixedly mounted on the outer wall of the articulated seat 1 (4091) on a side away from the spare part (3), and a buffer component (4097) is provided on the outer wall of the rotating shaft (4092).

6. A fixing device for spare parts for a main engine of a ship according to claim 5, characterized in that: The buffer component (4097) comprises a gear (40971) and a slide rail (40976), wherein the gear (40971) is fixedly mounted on the outer wall of the rotating shaft (4092), the slide rail (40976) is fixedly mounted on the top of the welding base (1), a slide bar (40975) is fixedly mounted on the inner wall of the slide rail (40976), a slide plate (40974) is slidably sleeved on the outer wall of the slide bar (40975), a rack (40972) is fixedly mounted on the top of the slide plate (40974), the rack (40972) is meshed with the gear (40971), a spring (40973) is fixedly mounted on the outer wall of the slide plate (40974), and one end of the spring (40973) away from the slide plate (40974) is fixedly connected to the inner wall of the slide rail (40976).

7. A fixing device for spare parts for a main engine of a ship according to claim 5, characterized in that: Two gears (40971) are provided on the rotating shaft (4092) and are symmetrically arranged about the center of the rotating shaft (4092), and springs (40973) are fixedly installed on the outer walls of both sides of the slide plate (40974).

8. A fixing device for spare parts for a main engine of a ship according to claim 1, characterized in that: A circular rail (6) is fixedly mounted on the outer wall of the welding base (1), a frame (7) is slidably mounted on the circular rail (6), a plurality of frames (7) are provided, and a rainproof cloth (8) is fixedly mounted between two adjacent frames (7).

9. A fixing device for spare parts for a main engine of a ship according to claim 8, characterized in that: The skeleton (7) comprises a round ball (701) and an L-shaped rod (702); the round ball (701) is slidably arranged in the circular rail (6); the L-shaped rod (702) is fixedly connected to the round ball (701); and the top end of the L-shaped rod (702) is higher than the top end of the spare part (3).

10. A fixing device for spare parts for a main engine of a ship according to claim 9, characterized in that: A magnet sheet (9) is fixedly mounted on the top end of the L-shaped rod (702); the magnet sheet (9) is an arc plate, and the magnetic poles of adjacent magnet sheets (9) are opposite.

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