Dismounting device for underwater shell of outboard engine

Abstract

The invention discloses an outboard engine underwater shell dismounting device, and relates to the technical field of outboard engine underwater shell dismounting, the outboard engine underwater shell dismounting device comprises a puller supporting rod and an underwater shell body, the lower end of the puller supporting rod is provided with a driven rotating disc, and the puller supporting rod is internally provided with a cavity structure penetrating through the puller supporting rod; a puller screw rod is in threaded connection with the interior of the cavity structure, the surface of a puller supporting rod is sleeved with a pulling claw supporting frame, the lower end of the pulling claw supporting frame makes contact with the upper end of a driven rotating disc, four pulling claw plates are installed on the side wall of the pulling claw supporting frame in an array mode, and a limiting plate is installed at the tail end of each pulling claw plate. By arranging a series of structures, the underwater shell disassembling device can be used in maintenance in different environments, can be compatible with multiple brands for use, can be compatible with disassembling of different models for use, is reliable in stability in the disassembling process, cannot damage parts of an underwater shell, and better creates favorable conditions for finding problems of the underwater shell.

Description

Technical Field

[0001] The invention relates to the technical field of disassembling an underwater housing of an outboard motor, and in particular to a disassembling device for an underwater housing of an outboard motor. Background Art

[0002] In the field of marine engineering, outboard motors, as a type of engine power, play a vital role in water transportation and the shipping industry. The underwater housing of the outboard motor is one of the key components of the outboard motor and an important component of the outboard motor's output power. Its sealing performance is directly related to the normal operation and service life of the equipment. Therefore, the maintenance and inspection of the underwater housing is very important, and the disassembly device plays a vital role in this process.

[0003] In the existing market, the underwater housing of outboard motors is repaired and the underwater housing cover is removed by a sliding hammer tooling device. The sliding hammer tooling device is not compatible with every model and the connector of the corresponding model needs to be replaced. The sliding rod of the sliding hammer is long and inconvenient to carry. It is also inconvenient to remove the underwater housing cover, and the underwater housing cover will be damaged during repair and removal. There are many brands and models in the actual market, and the standard uniformity of the underwater housing is poor. In order to effectively improve the maintenance efficiency and reduce the equipment failure rate, a device that is easy to operate, simple to disassemble and easy to carry is invented. Summary of the invention

[0004] The object of the present invention is to provide a device for disassembling an underwater housing of an outboard motor to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for disassembling an underwater shell of an outboard motor, comprising a pulling code support rod and an underwater shell body, one end of the underwater shell body is installed with a propeller shaft, the outside of the propeller shaft is installed with an underwater shell cover, the lower end of the pulling code support rod is installed with a driven turntable, the interior of the pulling code support rod is provided with a cavity structure that penetrates the pulling code support rod, the pulling code support rod is sleeved on the outside of the propeller shaft through the cavity structure, the internal thread of the cavity structure is connected with a pulling code screw, the surface of the pulling code support rod is sleeved with a claw support frame, the lower end of the claw support frame is in contact with the upper end of the driven turntable, the side wall array of the claw support frame is installed with four claw plates, the end of the claw plates is installed with a limit plate, and the four claw plates and the underwater shell cover are clamped and connected.

[0006] Preferably, the pulling claw support frame includes a main support ring, an extension plate and a through hole. The main support ring is sleeved on the surface of the pulling code support rod. Eight extension plates are installed in an array on the side surface of the main support ring. Two adjacent extension plates form a group. Four groups of extension plates are equidistantly arranged in a cross shape on the circumferential surface of the main support ring. A through hole is provided on the side walls of multiple extension plates.

[0007] Preferably, a claw plate is rotatably connected between each group of the extension plates, a through hole is provided inside the claw plate, and a mounting pin is slidably connected between two of the through holes.

[0008] Preferably, the center position of the surface of the mounting pin is a smooth plane and is rotatably connected to the through hole. A limiting groove is provided at both ends of the mounting pin, and an open retaining ring is clamped inside the limiting groove. The inner wall of the open retaining ring fits tightly with the outer wall of the extension plate.

[0009] Preferably, the driven turntable is composed of four triangular blocks with arc-shaped edges, one end of the longest arc edge is close to the surface of the pull-code support rod, and the other end of the arc edge is far away from the pull-code support rod.

[0010] Preferably, a limit plate is installed at the lower end of the code pulling screw.

[0011] Preferably, the cavity structure includes a threaded cavity and a sliding cavity, the threaded cavity and the pulling screw are threadedly connected, the sliding cavity is located at the lower end of the threaded cavity and is connected to each other, the size of the sliding cavity is compatible with the size of the limit plate, and the size of the threaded cavity is smaller than the size of the limit plate.

[0012] Preferably, a closed first hexagonal nut is installed on the upper end of the pull-code screw rod, and a second hexagonal nut with a through hole in the center is installed on the upper end of the pull-code support rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention relates to an outboard motor underwater housing disassembly device. When in use, the pulling claw support frame is inserted into the pulling code support rod, and the pulling code screw is screwed into the cavity structure of the pulling code support rod; the underwater housing body with the ring nut removed is laid flat, the pulling code support rod for disassembling the pulling code of the underwater housing body is inserted into the propeller shaft of the underwater housing, and the pulling claw is placed into the side groove of the underwater housing cover; the pulling code screw is rotated to make it support the propeller shaft, and the pulling code screw is rotated with an open-end wrench to apply a force to the pulling code support rod, so that the distance between the pulling code support rod and the underwater housing cover is lengthened, and at the same time, the pulling claw pulls the underwater housing cover and pulls it out of the underwater housing body. The underwater housing disassembly device can be quickly assembled, can be used for maintenance in different environments, can be compatible with multiple brands, can be compatible with different models for disassembly and use, has reliable stability during disassembly, will not damage the parts of the underwater housing itself, and better creates favorable conditions for finding underwater housing problems.

[0015] 2. The underwater housing disassembly device for outboard motors adopts a threaded rod top screw puller, pays attention to the personal safety of the operator, reduces the complexity and labor intensity of manual operation, and avoids injuries to the operator during the disassembly operation.

[0016] 3. Regarding the outboard motor underwater housing disassembly device, the outboard motor underwater housing disassembly device adopts a guide device to ensure that the underwater housing itself and the internal precision parts are not damaged during the disassembly process, so that the disassembly tool can accurately act on the part that needs to be disassembled, avoiding damage to the surrounding structure caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the pull-code support rod and the pull-claw support frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the split structure of the overall structure of the present invention;

[0020] Figure 4 It is a cross-sectional view of the pull-code support rod and the pull-code screw rod of the present invention;

[0021] Figure 5 A top view of the overall structure of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the propeller shaft of the present invention.

[0023] In the figure: 1. Pull code support rod; 2. Pull code screw; 3. Pull claw support frame; 301. Main support ring; 302. Extension plate; 303. Through hole; 4. Underwater shell body; 5. Underwater shell cover; 6. Propeller shaft; 7. First hexagonal nut; 8. Second hexagonal nut; 9. Pull claw plate; 10. Driven turntable; 11. Limit plate; 12. Limit plate; 13. Mounting pin; 14. Open retaining ring; 15. Cavity structure; 1501. Threaded cavity; 1502. Sliding cavity; 16. Limit groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] like Figures 1 to 6 As shown, the present embodiment is about the outboard motor underwater housing disassembly device, including a pull-code support rod 1 and an underwater housing body 4, one end of the underwater housing body 4 is installed with a propeller shaft 6, the outer side of the propeller shaft 6 is installed with an underwater housing cover 5, the pull-code support rod 1 is sleeved on the outer side of the propeller shaft 6 through a cavity structure 15, the underwater housing body 4, the propeller shaft 6 and the underwater housing cover 5 are all the internal structures of the existing outboard motor, the lower end of the pull-code support rod 1 is installed with a driven turntable 10, the driven turntable 10 is fixedly connected to the pull-code support rod 1, and is moved along with the pull-code support rod 1. The code puller 1 rotates synchronously with the rotation of the code puller support rod 1. The code puller support rod 1 is provided with a cavity structure 15 that penetrates the code puller support rod 1. Both ends of the cavity structure 15 are open. The upper end opening of the cavity structure 15 is smaller, and the lower end opening is larger and larger than the size of the propeller shaft 6. The code puller screw 2 is connected to the inner thread of the cavity structure 15. The code puller screw 2 and the cavity structure 15 are in a threaded connection relationship, and the code puller screw 2 can extend from the smaller opening at the upper end of the cavity structure 15 to the outside. The surface of the code puller support rod 1 is sleeved with The claw support frame 3 is sleeved on the surface of the code pulling support rod 1, and is limited by the driven turntable 10 at the lower end of the code pulling support rod 1, so that the claw support rod 3 can be prevented from detaching from the lower end of the code pulling support rod 1. The lower end of the claw support frame 3 is in contact with the upper end of the driven turntable 10. Four claw plates 9 are installed in the side wall array of the claw support frame 3. The claw plates 9 are in a rotational connection relationship with the claw support frame 3. The claw plates 9 can be rotated at a certain angle under the action of external force, and a limiter is installed at the end of the claw plates 9. Plate 12, four claw plates 9 and the underwater shell cover 5 are snap-connected. By rotating the position of the claw support frame 3, the position of the four claw plates 9 and the driven turntable 10 can be changed. With the help of the curved surface of the driven turntable 10, the angle of the claw plate 9 can be changed, thereby facilitating the four claw plates 9 to be sent into the interior of the underwater shell cover 5, and the claw plates 9 and the underwater shell cover 5 are limited by the limiting plate 12, and the claw support frame 3 and the four claw plates 9 are pulled outward by external force and drive the underwater shell cover 5, thereby completing the disassembly of the underwater shell cover 5.

[0027] Specifically, the claw support frame 3 includes a main support ring 301, an extension plate 302 and a through hole 303. The main support ring 301 is sleeved on the surface of the pull code support rod 1. Eight extension plates 302 are installed in an array on the side surface of the main support ring 301. The sizes of the multiple extension plates 302 are the same, and two adjacent extension plates 302 are a group. Figure 3 As shown, the two extension plates 302 closest to each other are a group, and four groups of extension plates 302 are equidistantly arranged in a cross shape on the circumferential surface of the main support ring 301. The four groups of extension plates 302 are at the same distance from each other and are equidistantly arranged in a cross shape on the outer surface of the main support rod 301. A through hole 303 is provided on the side walls of multiple extension plates 302, and a claw plate 9 is rotatably connected between each group of extension plates 302. A through hole is provided inside the claw plate 9, and a mounting pin 13 is slidably connected between the two through holes 303. A mounting pin 13 will pass through a through hole 303, a through hole provided in the claw plate 9, and another through hole 303 in sequence, and the mounting The surface of the pin 13 is slidably connected to the through hole, so that the claw plate 9 can rotate on the surface of the mounting pin 13. The center position of the surface of the mounting pin 13 is a smooth plane and is rotatably connected to the through hole. A limiting groove 16 is provided at both ends of the mounting pin 13, and an open retaining ring 14 is clamped inside the limiting groove 16. An open retaining ring 14 is provided at the position where the mounting pin 13 extends to the outside of the extension plate 302, which can prevent the mounting pin 13 from detaching from the claw support frame 3, and the two open retaining rings 14 are in a clamping connection relationship with the mounting pin 13, which not only fixes the position of the mounting pin 13, but also makes the disassembly process more convenient and quick.

[0028] Furthermore, the driven turntable 10 is composed of four triangular blocks with arc-shaped edges, one end of the longest arc edge is close to the surface of the code pulling support rod 1, and the other end of the arc edge is away from the code pulling support rod 1. The center position of the claw plate 9 is recessed at a certain angle inward, so that the claw plate 9 is folded at an angle, and the claw support frame 3 can be rotated by external force. At this time, the four claw plates 9 on the outside of the claw support frame 3 will come into contact with the triangular blocks with arc-shaped edges on the surface of the driven turntable 10. When the claw plate 9 is located at a position where the arc edge is close to the code pulling support rod 1, the folding angles of the four claw plates 9 are closest to each other. At this time, the four claw plates 9 can be sent into the interior of the underwater shell cover 5, and then the claw support frame 3 can be rotated so that the position of the claw plates 9 is located at the position where the arc edge is away from the pulling code support rod 1. At this time, under the squeezing of the driven turntable 10, the four claw plates 9 will expand outward. At this time, the claw plates 9 will cooperate with the limiting plates 12 to complete the limiting of the underwater shell cover 5. By pulling the underwater shell cover 5 with the claw plates 9 cooperating with the limiting plates 12, the dismantling personnel can avoid direct contact with the underwater shell cover 5, pay attention to the personal safety of the operator, reduce the complexity and labor intensity of manual operation, and avoid injuries to the operator during the disassembly operation.

[0029] Furthermore, a limiting disk 11 is installed at the lower end of the code pulling screw 2, and the cavity structure 15 includes a threaded cavity 1501 and a sliding cavity 1502. The threaded cavity 1501 and the code pulling screw 2 are threadedly connected, and the sliding cavity 1502 is located at the lower end of the threaded cavity 1501 and is connected to each other. The size of the sliding cavity 1502 is adapted to the size of the limiting disk 11, and the size of the threaded cavity 1501 is smaller than the size of the limiting disk 11. The code pulling screw 2 is threadedly connected to the threaded cavity 1501. By arranging the limiting disk 11 at the lower end of the code pulling screw 2, it is possible to prevent the code pulling screw 2 from completely entering the interior of the threaded cavity 1501. The size of the limiting disk 11 is adapted to the size of the sliding cavity 1502, so that the limiting disk 11 can be in the sliding cavity 1 The internal extending sliding cavity 1502 of 502 moves in the length direction. By rotating the pulling screw 2, the position of the pulling screw 2 inside the cavity structure 15 can be changed. By changing the position of the pulling screw 2 inside the cavity structure 15, the pulling screw 2 is brought into contact with the top end of the propeller shaft 6, and the pulling support rod 1 is simultaneously sleeved on the surface of the pulling screw 2 and the propeller shaft 6 to produce a guiding effect. At the same time, it can be avoided that the external structure will not come into contact with the propeller shaft 6 when pulling the underwater shell cover 5. The guiding device is used to ensure that no damage is caused to the underwater shell body 4 and the internal precision parts during the disassembly process, so that the disassembly tool can accurately act on the part that needs to be disassembled to avoid damage to the surrounding structure caused by misoperation.

[0030] Furthermore, a closed first hexagonal nut 7 is installed at the upper end of the pull code screw 2, and a second hexagonal nut 8 with a through hole in the center is installed at the upper end of the pull code support rod 1. The sizes of the first hexagonal nut 7 and the second hexagonal nut 8 are different. The size of the second hexagonal nut 8 is larger than that of the first hexagonal nut 7. By clamping an external wrench with the first hexagonal nut 7 or the second hexagonal nut 8, the first hexagonal nut 7 or the second hexagonal nut 8 can be driven to rotate by applying an external force to the external wrench, thereby driving the pull code. When the code screw 2 or the code pulling support rod 1 rotates, the second hexagonal nut 8 with a through hole inside will not affect the normal operation of the knife code pulling screw 2. When the user rotates the first hexagonal nut 7 with an external wrench, the code pulling screw 2 will rotate with the rotation of the first hexagonal nut 7, and then the code pulling screw 2 will move along the length direction of the code pulling support rod 1. At this time, the relative position of the code pulling screw 2 relative to the propeller shaft 6 will change at the same time, and finally the limit plate 11 can be connected with the top end of the propeller shaft 6 in a card-type connection relationship.

[0031] The method of using this embodiment is as follows: when in use, the claw support frame 3 is inserted into the code pulling support rod 1, and the code pulling screw 2 is screwed into the cavity structure 15 of the code pulling support rod 1; the underwater shell body 4 with the ring nut removed is laid flat, the code pulling support rod 1 with the code removed from the underwater shell body 4 is inserted into the propeller shaft 6 of the underwater shell, and the claw is placed in the side groove of the underwater shell cover 5; the code pulling screw 2 is rotated to make it support the propeller shaft 6, and the code pulling screw 2 is rotated with an open-end wrench to apply a force to the code pulling support rod 1, so that the distance between the code pulling support rod 1 and the underwater shell cover 5 becomes longer, and at the same time, the claw pulls the underwater shell cover 5 and pulls it out from the underwater shell body 4. The underwater shell disassembly device can be quickly assembled and can be used for maintenance in different environments. It is compatible with multiple brands and can be disassembled and used with different models. It has reliable stability during disassembly and will not damage the parts of the underwater shell itself, thus creating favorable conditions for finding problems with the underwater shell.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for disassembling an underwater housing of an outboard motor, comprising a puller support rod (1) and an underwater housing body (4), a propeller shaft (6) being installed at one end of the underwater housing body (4), and an underwater housing cover (5) being installed outside the propeller shaft (6), characterized in that: A driven turntable (10) is installed at the lower end of the pull-code support rod (1), and a cavity structure (15) penetrating the pull-code support rod (1) is opened inside the pull-code support rod (1). The pull-code support rod (1) is sleeved on the outside of the propeller shaft (6) through the cavity structure (15), and the internal thread of the cavity structure (15) is connected to the pull-code screw rod (2). The surface of the pull-code support rod (1) is sleeved with a claw support frame (3), and the lower end of the claw support frame (3) is in contact with the upper end of the driven turntable (10). Four claw plates (9) are installed in an array on the side wall of the claw support frame (3), and a limit plate (12) is installed at the end of each claw plate (9). The four claw plates (9) are snap-connected to the underwater shell cover (5).

2. The device for disassembling the underwater housing of an outboard motor according to claim 1, characterized in that: The pulling claw support frame (3) comprises a main support ring (301), an extension plate (302) and a through hole (303); the main support ring (301) is sleeved on the surface of the pulling code support rod (1); eight extension plates (302) are installed in an array on the side surface of the main support ring (301); two adjacent extension plates (302) form a group; four groups of extension plates (302) are arranged in a cross shape at equal intervals on the circumferential surface of the main support ring (301); and a through hole (303) is provided on the side walls of the plurality of extension plates (302).

3. The device for disassembling the underwater housing of an outboard motor according to claim 2, characterized in that: A claw plate (9) is rotatably connected between each group of extension plates (302), a through hole is provided inside the claw plate (9), and a mounting pin (13) is slidably connected between two through holes (303).

4. The device for disassembling the underwater housing of an outboard motor according to claim 3, characterized in that: The center position of the surface of the mounting pin (13) is a smooth plane and is rotatably connected to the through hole. A limiting groove (16) is provided at both ends of the mounting pin (13). An open retaining ring (14) is clamped inside the limiting groove (16). The inner wall of the open retaining ring (14) is tightly fitted with the outer wall of the extension plate (302).

5. The device for disassembling the underwater housing of an outboard motor according to claim 1, characterized in that: The driven turntable (10) is composed of four triangular blocks with arc-shaped edges, one end of the longest arc edge is close to the surface of the pull-code support rod (1), and the other end of the arc edge is far away from the pull-code support rod (1).

6. The device for disassembling the underwater housing of an outboard motor according to claim 1, characterized in that: A limiting disk (11) is installed at the lower end of the code pulling screw (2).

7. The device for disassembling the underwater housing of an outboard motor according to claim 6, characterized in that: The cavity structure (15) comprises a threaded cavity (1501) and a sliding cavity (1502); the threaded cavity (1501) and the pull screw (2) are threadedly connected; the sliding cavity (1502) is located at the lower end of the threaded cavity (1501) and is connected to each other through the cavity; the size of the sliding cavity (1502) matches the size of the limiting disk (11); the size of the threaded cavity (1501) is smaller than the size of the limiting disk (11).

8. The device for disassembling the underwater housing of an outboard motor according to claim 1, characterized in that: A closed first hexagonal nut (7) is installed at the upper end of the pull-code screw rod (2), and a second hexagonal nut (8) with a through hole at the center is installed at the upper end of the pull-code support rod (1).

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