Marine diesel engine through bolt installation tool

Abstract

The utility model relates to the technical field of marine diesel engines, and discloses a marine diesel engine through bolt installation tool which comprises a lifting plate and a lifting lug arranged in the center of the top of the lifting plate, and the lifting plate is fixedly connected with the lifting lug. The iron chains are arranged on the two sides of the center position of the bottom of the hanging plate, and the iron chains are movably connected with the hanging plate. According to the marine diesel engine through bolt installation tool, the lifting bolts fixed to the ends of the two through bolts are connected through the iron chain, and meanwhile the length of the iron chain can be adjusted according to different types of diesel engines, so that the purpose of adapting to different types of diesel engines is achieved. Therefore, the purposes that the two through bolts can be lifted at the same time, threads of the two bolts do not collide with each other, damage is avoided, and operation risks are reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine diesel engines, in particular to an installation tool for marine diesel engine through bolts. Background Technique

[0002] A marine diesel engine is an internal combustion engine specially designed for a ship propulsion system. It uses diesel as fuel and drives the ship forward through compression ignition. The working principle of a marine diesel engine is based on the basic principle of an internal combustion engine, that is, high-temperature and high-pressure gas is generated by the combustion of fuel, which pushes the piston to move, and then drives the crankshaft to rotate to achieve power output. During the assembly process of a marine diesel engine, through bolts need to be installed. In order to ensure that the bolts can be accurately and firmly installed in place, installation tools are required when installing the through bolts.

[0003] Common installation tools for marine diesel engine through bolts usually consist of structures such as a hoisting device, a fastening tool, a supporting and positioning tool, a measuring and inspection tool, a safety tool, and other auxiliary tools. The hoisting device hoists the through bolt from the ground or storage position to the diesel engine installation position. The fastening tool is used to tighten the nut of the through bolt. The supporting and positioning tool is used to support the through bolt when the cylinder block and the frame are closed. The measuring and inspection tool is used to measure parameters such as the length and installation depth of the bolt. The safety tool is used to ensure the safety of the installation personnel. Other auxiliary tools can be used to disassemble or assemble bolts and nuts, but may also be used to tighten or loosen nuts related to the through bolt during the installation process.

[0004] For traditional installation tools for marine diesel engine through bolts, during the construction of marine diesel engines, especially for low-speed large diesel engines, two through bolts need to be installed together more tightly. When using a lifting ring to lift two through bolts simultaneously, the threads between the two through bolts may collide and the threads may be damaged. At the same time, it is difficult to manually separate the two through bolts lifted by the lifting ring, which makes the installation operation risky. Therefore, an installation tool for marine diesel engine through bolts is proposed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an installation tool for marine diesel engine through bolts to solve the technical problems that the self-weight of the marine diesel engine through bolts is relatively heavy, there is an operation risk in manually separating two bolts lifted simultaneously, and the threads of the two lifted marine diesel engine through bolts are prone to collide and cause damage.

[0007] (2) Technical Solutions

[0008] To achieve the above purpose, the utility model provides the following technical solutions: An installation tool for marine diesel engine through bolts, comprising:

[0009] A suspension plate, and a lifting lug arranged at the center position of the top of the suspension plate, and the suspension plate is fixedly connected with the lifting lug;

[0010] A steel chain is arranged on both sides of the center position of the bottom of the suspension plate, and the steel chain is movably connected with the suspension plate. By connecting the eyebolt fixed to the ends of two through bolts with the steel chain, the purpose of simultaneously lifting two through bolts and preventing the threads of the two bolts from colliding and being damaged to reduce the operation risk is achieved. The length of the steel chain can be adjusted according to different diesel engine models to achieve the purpose of adapting to different models.

[0011] Preferably, a bidirectional lead screw is additionally arranged at the front and rear ends of the inner cavity bottom of the suspension plate, and two sliders are sleeved on both sides of the surface of the bidirectional lead screw. An outer connecting plate is installed at the bottom of the slider, and a rotating handle is additionally arranged at the center of the outer side of the outer connecting plate. The upper and lower parts of the rotating handle are inserted and connected with positioning insertion rods, and positioning holes are opened at the front and rear ends of the outer side of the outer connecting plate. The bidirectional lead screw can rotate on the suspension plate, and the slider drives the connecting structure to move according to the rotation direction of the bidirectional lead screw. The rotating handle can drive the connecting structure to rotate on the outer connecting plate. After the rotating handle rotates, the positioning insertion rod can be inserted into the outer connecting plate through the positioning hole. Thereby ensuring the stability of the rotating handle when it is not in use.

[0012] Preferably, rotating handles are additionally arranged at the front and rear ends of the lower part of the outer side of the suspension plate, and the rotating handles are coaxially connected with the bidirectional lead screw. The rotating handle drives the bidirectional lead screw to rotate on the suspension plate and adjusts the rotation direction of the bidirectional lead screw.

[0013] Preferably, limiting holes are evenly opened on the outer side surface of the rotating handle, and limiting insertion rods are inserted and connected in the inner cavities of the limiting holes. The limiting insertion rods are inserted and connected with the suspension plate. After the rotating handle rotates, the limiting insertion rod can be inserted into the suspension plate through the limiting hole for connection, thereby ensuring the stability of the rotating handle and the bidirectional lead screw when they are not in use.

[0014] Preferably, a middle connecting plate is installed at the top of the steel chain, and the middle connecting plate is attached to the center positions of both sides of the bottom of the suspension plate, and the middle connecting plate corresponds to the outer connecting plate. The steel chain can move along with the outer connecting plate through the middle connecting plate, so as to adjust the distance between the two groups of steel chains according to different situations, improving the practicability of the device.

[0015] Preferably, a connecting cylinder is inserted and connected to the outer center of the middle connecting plate and the outer connecting plate, and a rotating shaft is additionally provided in the inner cavity of the connecting cylinder. The rotating shaft is coaxially connected to the rotating handle, and an arc-shaped plate is installed at the rear end of the rotating shaft. An arc side plate is additionally provided on the outer side of the arc-shaped plate, and a fixed cone head is connected to the outer side of the arc side plate. A return spring is additionally provided between the arc side plate and the fixed cone head. The rotating handle drives the rotating shaft and the arc-shaped plate to rotate, and the arc-shaped plate drives the fixed cone head to move outwards through the arc side plate and inserts the fixed cone head into the inner wall of the middle connecting plate for connection. This not only enables the middle connecting plate to move in the same direction as the outer connecting plate, but also facilitates the disassembly and assembly operation between the middle connecting plate and the outer connecting plate when the iron chain is replaced.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present utility model provides a marine diesel engine through-bolt installation tool, which has the following beneficial effects:

[0018] This marine diesel engine through-bolt installation tool is fixedly connected to the lifting ring screws at the ends of two through-bolts through an iron chain, and the length of the iron chain can be adjusted according to different diesel engine models to achieve the purpose of adapting to different models. Thus, the purpose of simultaneously lifting two through-bolts and preventing the threads of the two bolts from colliding, being damaged, and reducing the operation risk can be achieved. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the sectional structure of the hanging plate of the present utility model;

[0021] Figure 3 It is an enlarged schematic diagram of part A in the present utility model Figure 2 ;

[0022] Figure 4 It is a schematic diagram of the slider and its connection structure of the present utility model;

[0023] Figure 5 It is a schematic diagram of the sectional structure of the connecting cylinder of the present utility model;

[0024] Figure 6 It is a schematic diagram of the iron chain and its connection structure of the present utility model.

[0025] In the figure: 1, hanging plate; 2, hanging ear; 3, iron chain; 4, bidirectional lead screw; 5, slider; 6, outer connecting plate; 7, rotating handle; 8, limiting hole; 9, limiting insertion rod; 10, middle connecting plate; 11, rotating handle; 12, positioning hole; 13, positioning insertion rod; 14, connecting cylinder; 15, rotating shaft; 16, arc-shaped plate; 17, arc side plate; 18, fixed cone head; 19, return spring. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0027] The present utility model provides a technical solution, a marine diesel engine through-bolt installation tool, including: Please refer to Figure 1 , a lifting plate 1, and a lifting lug 2 arranged at the center of the top of the lifting plate 1, and the lifting plate 1 and the lifting lug 2 are fixedly connected;

[0028] A steel chain 3 is arranged on both sides of the center of the bottom of the lifting plate 1, and the steel chain 3 is movably connected to the lifting plate 1. By connecting the eye bolts fixed to the ends of the two through-bolts through the steel chain 3, the purpose of lifting the two through-bolts simultaneously and preventing the threads of the two bolts from colliding and being damaged to reduce the operation risk is achieved. The length of the steel chain 3 can be adjusted according to different diesel engine models to achieve the purpose of adapting to different models.

[0029] Please refer to Figure 2 , a bidirectional lead screw 4 is additionally arranged at the front and rear ends of the inner cavity bottom of the lifting plate 1, and sliding blocks 5 are sleeved on both sides of the surface of the bidirectional lead screw 4. An outer connecting plate 6 is installed at the bottom of the sliding block 5, and a rotating handle 11 is additionally arranged at the center of the outer side of the outer connecting plate 6. A positioning insertion rod 13 is inserted and connected to the upper and lower parts of the rotating handle 11, and positioning holes 12 are opened at the front and rear ends of the outer side of the outer connecting plate 6. The bidirectional lead screw 4 can rotate on the lifting plate 1, and the sliding block 5 drives the connecting structure to move according to the rotation direction of the bidirectional lead screw 4. The rotating handle 11 can drive the connecting structure to rotate on the outer connecting plate 6. After the rotating handle 11 rotates, the positioning insertion rod 13 can be inserted into the outer connecting plate 6 through the positioning hole 12. Thus, the stability of the rotating handle 11 when not in use is ensured.

[0030] Please refer to Figure 3 , rotating handles 7 are additionally arranged at the front and rear ends of the lower part of the outer side of the lifting plate 1, and the rotating handles 7 are coaxially connected to the bidirectional lead screw 4. The rotating handle 7 drives the bidirectional lead screw 4 to rotate on the lifting plate 1 and adjusts the rotation direction of the bidirectional lead screw 4. Limiting holes 8 are evenly opened on the outer side surface of the rotating handle 7, and a limiting insertion rod 9 is inserted and connected to the inner cavity of the limiting hole 8, and the limiting insertion rod 9 is inserted and connected to the lifting plate 1. After the rotating handle 7 rotates, the limiting insertion rod 9 can be inserted into the lifting plate 1 through the limiting hole 8 for connection, thus ensuring the stability of the rotating handle 7 and the bidirectional lead screw 4 when not in use.

[0031] Please refer to Figure 4 , Figure 6, a middle connecting plate 10 is installed at the top of the iron chain 3, and the middle connecting plate 10 is attached to the central positions on both sides of the bottom of the hanging plate 1. The middle connecting plate 10 corresponds to the outer connecting plate 6. The iron chain 3 can move with the outer connecting plate 6 through the middle connecting plate 10, so as to adjust the distance between the two groups of iron chains 3 according to different situations, improving the practicability of the device.

[0032] Please refer to Figure 5 , a connecting cylinder body 14 is inserted and connected to the outer center of the middle connecting plate 10 and the outer connecting plate 6, and a rotating shaft 15 is additionally provided in the inner cavity of the connecting cylinder body 14. The rotating shaft 15 is coaxially connected to the rotating handle 11, and an arc-shaped plate 16 is installed at the rear end of the rotating shaft 15. An arc-shaped side plate 17 is additionally provided on the outer side of the arc-shaped plate 16, and a fixed cone head 18 is connected to the outer side of the arc-shaped side plate 17. A return spring 19 is additionally provided between the arc-shaped side plate 17 and the fixed cone head 18. The rotating handle 11 drives the rotating shaft 15 and the arc-shaped plate 16 to rotate, and the arc-shaped plate 16 drives the fixed cone head 18 to move outwards through the arc-shaped side plate 17 and inserts the fixed cone head 18 into the inner wall of the middle connecting plate 10 for connection. This not only enables the middle connecting plate 10 to move in the same direction as the outer connecting plate 6, but also facilitates the disassembly and assembly operation between the middle connecting plate 10 and the outer connecting plate 6 when the iron chain 3 is replaced.

[0033] In this solution: The iron chain 3 is connected and fixed to the lifting ring screws at the ends of the two through bolts, and the length of the iron chain 3 can be adjusted according to different diesel engine models. The rotating handle 11 drives the rotating shaft 15 and the arc-shaped plate 16 to rotate, and the arc-shaped plate 16 drives the fixed cone head 18 to move outwards through the arc-shaped side plate 17 and inserts the fixed cone head 18 into the inner wall of the middle connecting plate 10 for connection. After the rotating handle 11 finishes rotating, the positioning insertion rod 13 can be inserted into the outer connecting plate 6 through the positioning hole 12. The rotating handle 7 drives the bidirectional lead screw 4 to rotate on the hanging plate 1. The bidirectional lead screw 4 can rotate on the hanging plate 1, and the slider 5 drives the outer connecting plate 6, the middle connecting plate 10 and the iron chain 3 to move according to the rotation direction of the bidirectional lead screw 4. After the rotating handle 7 finishes rotating, the limit insertion rod 9 can be inserted into the hanging plate 1 through the limit hole 8 for connection.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A marine diesel engine through-bolt installation tool, characterized in that Including: A suspension plate (1), and a lifting lug (2) provided at the center position of the top of the suspension plate (1), and the suspension plate (1) is fixedly connected to the lifting lug (2); Steel chains (3) are provided on both sides of the center position of the bottom of the suspension plate (1), and the steel chains (3) are movably connected to the suspension plate (1).

2. The installation tool for marine diesel engine through bolts according to claim 1, characterized in that: A bidirectional lead screw (4) is additionally provided at the front and rear ends of the inner cavity bottom of the suspension plate (1), and sliding blocks (5) are sleeved on both sides of the surface of the bidirectional lead screw (4). An outer connecting plate (6) is installed at the bottom of the sliding block (5), and a rotating handle (11) is additionally provided at the center of the outer side of the outer connecting plate (6). A positioning insertion rod (13) is inserted and connected to the upper and lower parts of the rotating handle (11), and positioning holes (12) are opened at the front and rear ends of the outer side of the outer connecting plate (6).

3. The marine diesel engine through-bolt installation tool according to claim 2, characterized in that: Rotating handles (7) are additionally provided at the front and rear ends of the lower part of the outer side of the suspension plate (1), and the rotating handles (7) are coaxially connected to the bidirectional lead screw (4).

4. A marine diesel engine through-bolt installation tool according to claim 3, characterized in that: Limiting holes (8) are evenly opened on the outer side surface of the rotating handle (7), and a limiting insertion rod (9) is inserted and connected to the inner cavity of the limiting hole (8), and the limiting insertion rod (9) is inserted and connected to the suspension plate (1).

5. A marine diesel engine through-bolt installation tool according to claim 2, characterized in that: A middle connecting plate (10) is installed at the top of the steel chain (3), and the middle connecting plate (10) is attached to the center positions on both sides of the bottom of the suspension plate (1), and the middle connecting plate (10) corresponds to the outer connecting plate (6).

6. The installation tool for marine diesel engine through bolts according to claim 5, characterized in that: A connecting cylinder body (14) is inserted and connected to the centers of the outer sides of the middle connecting plate (10) and the outer connecting plate (6), and a rotating shaft (15) is additionally provided in the inner cavity of the connecting cylinder body (14). The rotating shaft (15) is coaxially connected to the rotating handle (11), and an arc-shaped plate (16) is installed at the rear end of the rotating shaft (15). An arc side plate (17) is additionally provided on the outer side of the arc-shaped plate (16), and a fixed cone head (18) is connected to the outer side of the arc side plate (17). A return spring (19) is additionally provided between the arc side plate (17) and the fixed cone head (18).

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