Shafting lock block base and its design and installation method

Abstract

The application discloses a shaft system lock block base and a design and installation method thereof. The lock block base comprises a horizontally arranged first panel, a first vertical plate fixed to the front side of the first panel, a plurality of reinforcing plates arranged on the bottom surface of the first panel and vertically arranged with the first panel and the first vertical plate, and a first fixing block and a second fixing block arranged on the top surface of the first panel. The lock block base is fixed in the narrow space below the shaft system, and the lock block is fixed to the lock block base, so that the installation and fixation of the lock block are realized. Meanwhile, the torque generated by the rotation of the lock shaft disc can be transmitted to the fixing block of the lock block base, and the ship body structure is not damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship shafting lock block fixing, in particular to a shafting lock block base and a design and installation method thereof. BACKGROUND

[0002] The LNG ship is usually provided with two sets of power propulsion systems, when one set of power propulsion system fails to operate, the other set of power propulsion system can still operate normally, at this time, the tail flow will generate a torque on the non-operating propeller, and the torque will be transmitted to the ship diesel engine through the shafting of the propulsion system, at this time, the ship diesel engine will be adversely affected. In order to prevent the propeller and the main ship diesel engine from rotating, a shaft locking device is arranged on the shafting. One of the shaft locking devices is to lock the entire shafting by a lock block. The lock block is located directly below the shafting, and the lock block is pushed along the axial direction, and the lock block can be embedded in the groove to achieve the purpose of locking the shaft, but the distance between the lock block and the inner bottom plate in the engine room is far, and the lock block cannot be directly fixed on the ship structure, and if the lock block is directly fixed on the inner bottom plate, the torque generated by the rotation of the shaft locking disc will be transmitted to the inner bottom plate, which will cause local deformation of the inner bottom plate. SUMMARY

[0003] Therefore, the present application provides a shafting lock block base and a design and installation method thereof to solve the problems in the background art.

[0004] A shafting lock block base, comprising a horizontally arranged first panel, a first vertical plate fixed vertically on the front side of the first panel, a plurality of reinforcing plates arranged on the bottom surface of the first panel and vertically corresponding to the first panel and the first vertical plate, a first fixing block and a second fixing block arranged on the top surface of the first panel, the first fixing block and the second fixing block are symmetrically arranged to form a groove between them for accommodating the fixed lock block, the first fixing block and the second fixing block correspond to the upper and lower positions of the side reinforcing plates among the plurality of reinforcing plates respectively, the plurality of reinforcing plates are symmetrically distributed along the center line of the lock block base, there is an included angle k between the center line of the lock block base and the center line of the ship body, the plurality of reinforcing plates are connected and fixed with the inner bottom plate of the ship body and obliquely cross the first rib plate and the second rib plate at the bottom of the inner bottom plate of the ship body, a reinforcing rib plate is vertically fixed between the second rib plate and the third rib plate adjacent to the second rib plate, the space between the first vertical plate and the second rib plate has an included angle k, and the projection of one end point of the first vertical plate is located on the second rib plate, and the projection of the other end point is located on the reinforcing rib plate.

[0005] Preferably, the plurality of reinforcing plates comprises a first reinforcing plate, a second reinforcing plate, a third reinforcing plate and a fourth reinforcing plate, the first reinforcing plate and the second reinforcing plate are arranged at one end of the bottom surface of the first panel, the third reinforcing plate and the fourth reinforcing plate are arranged at the other end of the bottom surface of the first panel, the first fixing block is arranged directly above the first reinforcing plate, and the second fixing block is arranged directly above the fourth reinforcing plate.

[0006] Preferably, the panel surface between the first reinforcing plate and the second reinforcing plate and the panel surface between the third reinforcing plate and the fourth reinforcing plate of the first panel are both provided with bolt holes for fixing the lock block.

[0007] Preferably, the inner side of the first fixing block and the second fixing block is provided with a groove, the first wedge block is arranged in the groove of the first fixing block, and the second wedge block is arranged in the groove of the second fixing block.

[0008] Preferably, the first reinforcing plate, the second reinforcing plate, the third reinforcing plate, the fourth reinforcing plate and the first longitudinal plate are all trapezoidal plates.

[0009] A design and installation method of a shafting lock block base, specifically comprising the following steps:

[0010] S1, designing the size of the lock block base in the ship design stage:

[0011] According to the size of the lock block, the size of the first panel and the first longitudinal plate is determined, then according to the length of the first longitudinal plate and the space angle k between the second longitudinal plate and the second rib plate, the position of the reinforcing rib plate vertically fixed between the second rib plate and the adjacent third rib plate is determined;

[0012] According to the distance between the first rib plate and the second rib plate, the length of the reinforcing plate is determined, and according to the center height of the plunger hole directly below the lock shaft disc and the height of the lock block, the height of the reinforcing plate is determined;

[0013] S2, producing the lock block base according to the designed size of the lock block base;

[0014] S3, in the inner bottom plate segmented construction stage, the reinforcing rib plate is vertically fixed at the corresponding position between the second rib plate and the third rib plate;

[0015] S4, in the dock stage or after the ship is launched, the assembled lock block base is welded and fixed on the inner bottom plate, when the lock block base is fixed, the center line thereof should coincide with the shafting center line, at the same time, the plurality of reinforcing plates of the lock block base should be obliquely across the first rib plate and the second rib plate at the bottom of the inner bottom plate, one end point of the first longitudinal plate should be projected on the second rib plate, the other end point should be projected on the reinforcing rib plate, and the space angle between the first longitudinal plate and the second rib plate should be the angle k.

[0016] The beneficial effects of the present application are:

[0017] 1. The present invention fixes the locking block to the locking block base in a narrow space below the shaft system, thereby achieving the installation and fixation of the locking block. At the same time, the torque generated by the rotation of the locking shaft disc can be transmitted to the fixing block of the locking block base, without causing damage to the hull structure.

[0018] 2. By placing the fixing block directly above the outermost reinforcing plate, the present invention can support and strengthen it, preventing the panel structure at the installation position from deforming due to excessive torque. At the same time, the torque on the fixing frame can be transmitted to the bottom plate of the hull through the reinforcing plate, which can reduce the torque load on the bottom plate of the hull.

[0019] 3. This invention strengthens the structure of the locking block base by making the reinforcing plate obliquely cross the first and second ribs at the bottom of the inner bottom plate, and adding a reinforcing rib between the second and third ribs. One end of the first longitudinal plate is positioned directly above the second rib, and the other end of the second rib is positioned directly above the reinforcing rib. The ribs on the reverse side of the inner bottom plate can be used to strengthen the structure of the locking block base, further increasing its structural strength and resistance to deformation. At the same time, the reinforcing ribs can also strengthen the inner bottom plate, further reducing the torque load on the bottom plate inside the ship and preventing deformation of the inner bottom plate. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram showing the usage status of the lock block base.

[0022] Figure 2 This is a three-dimensional structural diagram of the lock block base.

[0023] Figure 3 This is a schematic diagram of the reverse reinforcement of the locking block base.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1 is the first panel, 2 is the first longitudinal plate, 3 is the first reinforcing plate, 4 is the second reinforcing plate, 5 is the third reinforcing plate, 6 is the fourth reinforcing plate, 7 is the first wedge, 8 is the first fixing block, 9 is the second wedge, 10 is the second fixing block, 11 is the locking block, 12 is the groove, 13 is the first rib, 14 is the second rib, 15 is the third rib, 16 is the reinforcing rib, 17 is the locking shaft plate, 18 is the inner bottom plate, 19 is the shafting centerline, and 20 is the hull centerline. Detailed Implementation

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the following will describe the present application with specific embodiments shown in the drawings. It should be understood that these descriptions are only exemplary but not intended to limit the scope of the present application. Moreover, in the following description, the description of well-known structures and techniques will be omitted so as not to unnecessarily obscure the concept of the present application.

[0027] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in the present disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0028] It should be understood that, although the terms first, second, third, etc. can be employed in this disclosure to describe various information, such information should not be limited to these terms solely. These terms are only used to distinguish one information from another. For example, a first information can be termed a second information, and, similarly, a second information can be termed a first information without departing from the scope of the present disclosure.

[0029] In the description of the present application, it needs to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] The present application will be further described in detail below with specific embodiments and in conjunction with the drawings.

[0031] The present application provides a shafting lock block base, comprising a horizontal first panel 1, a first vertical plate 2 vertically fixed on the front side of the first panel 1, a plurality of reinforcing plates arranged on the bottom surface of the first panel 1 and perpendicular to the first panel 1 and the first vertical plate 2 respectively, and a first fixing block 8 and a second fixing block 10 arranged on the top surface of the first panel 1.

[0032] The first panel 1 is horizontally arranged to fix the support lock block 11, and the first fixing block 8 and the second fixing block 10 are symmetrically arranged on the first panel 1 to form a groove 12 between them for accommodating the fixed lock block 11. A group of bolt holes for fixing the lock block 11 are symmetrically arranged on the left and right sides of the panel surface of the first panel 1, and the height of the first panel 1 should be able to sequentially embed the plunger of the lock block 11 into the groove of the lock shaft disc 17. In the embodiment, the first panel 1 is a rectangular plate, and the first panel 1 can also be arranged in other shapes according to actual needs.

[0033] The second longitudinal plate 2 is vertically fixed on the front side of the first panel 1, and the second longitudinal plate 2 is welded and fixed with the first panel 1. In the embodiment, the second longitudinal plate 2 is a trapezoidal plate, the length of the short side is equal to the length of the first panel 1, and the height is equal to the height of the reinforcing plate arranged at the bottom of the first panel 1.

[0034] The reinforcing plate is welded and fixed at the bottom of the first panel 1. In the embodiment, the reinforcing plate is also a trapezoidal plate, and the length of the short side is equal to the width of the first panel 1.

[0035] The first fixing block 8 and the second fixing block 10 correspond to the reinforcing plates on the side of the plurality of reinforcing plates up and down respectively, the plurality of reinforcing plates are symmetrically distributed with the center line of the lock block base, there is an included angle k between the center line of the lock block base and the center line of the ship body, the plurality of reinforcing plates are connected and fixed with the first rib plate 13 and the second rib plate 14 which are obliquely across the bottom of the first rib plate 13 and the second rib plate 14 of the inner bottom plate of the ship body, the second rib plate 14 is vertically fixed with the reinforcing rib plate 16 between the adjacent third rib plate 15, the space between the first longitudinal plate 2 and the second rib plate 14 has an included angle k, and the projection of one end point of the first longitudinal plate 2 is located on the second rib plate 14, and the projection of the other end point is located on the reinforcing rib plate 16.

[0036] In the embodiment, the bottom of the first panel 1 is provided with four reinforcing plates, which are the first reinforcing plate 3, the second reinforcing plate 4, the third reinforcing plate 5 and the fourth reinforcing plate 6. The first reinforcing plate 3 and the second reinforcing plate 4 are arranged on one end of the bottom surface of the first panel 1, the third reinforcing plate 5 and the fourth reinforcing plate 6 are arranged on the other end of the bottom surface of the first panel 1, the first fixing block 8 is arranged directly above the first reinforcing plate 3, and the second fixing block 10 is arranged directly above the fourth reinforcing plate 6; the panel surface of the first panel 1 between the first reinforcing plate 3 and the second reinforcing plate 4 and the panel surface between the third reinforcing plate 5 and the fourth reinforcing plate 6 are provided with bolt holes for fixing the lock block 11.

[0037] Preferably, the inner side of the first fixed block 8 and the second fixed block 10 is provided with a groove, and a wedge can be arranged in the groove. If the lock block 11 is fixed to the first panel 1 by bolts, there is a gap between the lock block 11 and the first fixed block 8 and the second fixed block 10 located on both sides of the lock block 11. According to the size of the gap between the lock block 11 and the first fixed block 8 and the second fixed block 10, a wedge of corresponding size can be processed. By arranging the first wedge 7 in the groove of the first fixed block 8 and arranging the second wedge 9 in the groove of the second fixed block 10, the lock block 11 is tightly clamped and fixed on the first panel 1.

[0038] The application also provides a design and installation method of the shafting lock block base, which specifically comprises the following steps:

[0039] S1, designing the size of the lock block base in the ship design stage:

[0040] According to the size of the lock block 11, the size of the first panel 1 and the first longitudinal plate 2 is determined (the length and width of the first panel 1 can be determined according to the length and width of the lock block 11, the length of the first panel 1 is greater than the length of the lock block 11, the width of the first panel 1 is equal to the width of the lock block 11, and the length of the short side of the second longitudinal plate 2 is equal to the length of the first panel 1), and then the position of the vertical fixed reinforcing rib plate 16 between the second rib plate 14 and the third rib plate 15 adjacent to the second rib plate 14 is determined according to the length of the first longitudinal plate 2 and the space angle k between the second longitudinal plate 2 and the second rib plate 14.

[0041] The length of the reinforcing plate is determined according to the distance between the first rib plate 13 and the second rib plate 14 (the length of the short side of the reinforcing plate is equal to the width of the first panel, and the length of the long side of the reinforcing plate is slightly greater than the distance between the first rib plate 13 and the second rib plate 14, so that the reinforcing plate can be obliquely across the first rib plate 13 and the second rib plate 14), and the height of the reinforcing plate and the first longitudinal plate 2 is determined according to the center height of the plunger hole located directly below on the lock shaft disc 17 and the height of the lock block 11.

[0042] S2, producing the lock block base according to the designed size of the lock block base;

[0043] S3, in the inner bottom plate segmented construction stage, the reinforcing rib plate 16 is vertically fixed at the corresponding position between the second rib plate 14 and the third rib plate 15;

[0044] S4, in the dock stage or after the ship is launched, the assembled lock block base is welded and fixed on the inner bottom plate. When the lock block base is fixed, the center line thereof should coincide with the shafting center line, at the same time, the plurality of reinforcing plates thereof obliquely cross the first rib plate 13 and the second rib plate 14 at the bottom of the inner bottom plate, one end point of the first longitudinal plate 2 is projected on the second rib plate 14, the other end point is projected on the reinforcing rib plate 16, and the space angle between the first longitudinal plate 2 and the second rib plate 14 is the angle k.

[0045] After the lock block base is installed, the lock block 11 can be fixed on the first panel 1 through bolts, according to the gap size between the lock block 11 and the first fixed block 8 and the second fixed block 10 on the first panel 1, a wedge block of corresponding size is processed, the wedge block is clamped in the groove of the first fixed block 8 and the second fixed block 10, and then the wedge block is welded and fixed with the first fixed block 8 and the second fixed block 10, so that when the torque is generated by the rotation of the lock shaft disc, the torque can be transmitted to the first fixed block 8 and the second fixed block 10.

[0046] It should be clear that the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A shaft system locking block base, characterized in that, The device includes a horizontally arranged first panel (1), a vertically fixed first longitudinal plate (2) on the front side of the first panel (1), multiple reinforcing plates disposed on the bottom surface of the first panel (1) and perpendicular to the first panel (1) and the first longitudinal plate (2), and a first fixing block (8) and a second fixing block (10) disposed on the top surface of the first panel (1). The first fixing block (8) and the second fixing block (10) are symmetrically arranged to form a groove (12) between them for accommodating a fixing lock block (11). The first fixing block (8) and the second fixing block (10) are respectively attached to the side reinforcing plate among the multiple reinforcing plates. Correspondingly, multiple reinforcing plates are symmetrically distributed around the center line of the locking block base. There is an angle k between the center line of the locking block base and the center line of the hull. Multiple reinforcing plates are connected and fixed to the bottom plate of the hull and obliquely cross the first rib (13) and the second rib (14) at the bottom of the bottom plate of the hull. A reinforcing rib (16) is vertically fixed between the second rib (14) and the third rib (15) on its adjacent side. The spatial angle between the first longitudinal plate (2) and the second rib (14) is angle k, and the projection of one end of the first longitudinal plate (2) is located on the second rib (14), and the projection of the other end is located on the reinforcing rib (16).

2. The shaft locking block base according to claim 1, characterized in that, The plurality of reinforcing plates include a first reinforcing plate (3), a second reinforcing plate (4), a third reinforcing plate (5), and a fourth reinforcing plate (6). The first reinforcing plate (3) and the second reinforcing plate (4) are arranged as a group at one end of the bottom surface of the first panel (1), and the third reinforcing plate (5) and the fourth reinforcing plate (6) are arranged as a group at the other end of the bottom surface of the first panel (1). The first fixing block (8) is located directly above the first reinforcing plate (3), and the second fixing block (10) is located directly above the fourth reinforcing plate (6).

3. The shaft locking block base according to claim 2, characterized in that, The first panel (1) has bolt holes for fixing the locking block (11) on the panel surface between the first reinforcing plate (3) and the second reinforcing plate (4) and on the panel surface between the third reinforcing plate (5) and the fourth reinforcing plate (6).

4. The shaft locking block base according to claim 2, characterized in that, The inner sides of the first fixing block (8) and the second fixing block (10) are provided with grooves. The first fixing block (8) is provided with a first wedge (7) in the groove, and the second fixing block (10) is provided with a second wedge (9) in the groove.

5. The shaft locking block base according to claim 2, characterized in that, The first reinforcing plate (3), the second reinforcing plate (4), the third reinforcing plate (5), the fourth reinforcing plate (6), and the first longitudinal plate (2) are all trapezoidal plates.

6. A design and installation method for a shaft system locking block base according to any one of claims 1-5, characterized in that, Specifically, the following steps are included: S1, Dimensions of the locking block base designed during the ship design phase: The dimensions of the first panel (1) and the first longitudinal plate (2) are determined according to the dimensions of the locking block (11). Then, the position of the reinforcing rib (16) that is vertically fixed between the second rib (14) and the third rib (15) on its adjacent side is determined according to the length of the first longitudinal plate (2) and the spatial angle k between the first longitudinal plate (2) and the second rib (14). The length of the reinforcing plate is determined based on the distance between the first rib (13) and the second rib (14), and the height of the reinforcing plate is determined based on the center height of the plunger hole located directly below on the locking disc (17) and the height of the locking block (11). S2, manufacture the lock block base according to the designed lock block base dimensions; S3, In the segmented construction stage of the inner bottom plate, the reinforcing rib (16) is vertically fixed at the corresponding position between the second rib (14) and the third rib (15); S4. During the docking stage or after the ship is launched, the assembled locking block base is welded and fixed to the inner bottom plate. When fixing the locking block base, its center line should coincide with the center line of the shaft system. At the same time, its multiple reinforcing plates should be obliquely across the first rib (13) and the second rib (14) at the bottom of the inner bottom plate, so that one end of the first longitudinal plate (2) is projected onto the second rib (14) and the other end is projected onto the reinforcing rib (16), and the spatial angle between the first longitudinal plate (2) and the second rib (14) is angle k.

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