Marine engine main bearing bolt assembly and tightening mechanism

Abstract

The application discloses a marine engine main bearing bolt assembling and tightening mechanism and relates to the technical field of marine engines. The marine engine main bearing bolt assembling and tightening mechanism comprises a handle, a connecting block is arranged on one side of the handle, a fixed block is arranged between two groups of the connecting blocks, a connecting head is connected to the end of the fixed block away from the handle, a through hole is formed in the middle of the connecting head, an upper fixed ring and a lower fixed ring are arranged in the through hole, a rotating ring is arranged in the middle of the upper fixed ring and the lower fixed ring, and an arc-shaped groove is formed in the middle of the rotating ring. When the marine engine main bearing bolt assembling and tightening mechanism is used, the first worm can be rotated, then the worm gear and the rotating ring are matched, the sliding column and the sliding block drive the pressing blocks to move, six groups of the pressing blocks can be moved close to each other or away from each other along the upper fixed ring in the through hole of the connecting head, and thus bolts with different sizes can be clamped and fixed, so that the bolts with different sizes can be conveniently tightened.

Description

Technical Field

[0001] This invention relates to the field of marine engine technology, specifically to a marine engine main bearing bolt assembly and tightening mechanism. Background Technology

[0002] The main bearing bolts of marine engines are primarily used to secure the main bearing cap and main bearing housing, ensuring that the crankshaft can withstand enormous alternating loads and impact forces during high-speed operation. To guarantee the reliability and safety of the bolts, tools are needed to tighten them.

[0003] Existing marine engine main bearing bolt assembly and tightening mechanisms are equipped with various sizes of sleeves to facilitate tightening bolts of different sizes. During use, it is necessary to remove the sleeve from the bolt assembly and tightening mechanism according to the bolt size and then replace it with the corresponding size bolt sleeve. This is inconvenient for users to operate and makes it difficult to tighten bolts of different sizes. Summary of the Invention

[0004] The purpose of this invention is to provide a bolt assembly and tightening mechanism for marine engine main bearings, in order to solve the problem mentioned in the background art that the currently used bolt assembly and tightening mechanisms for marine engine main bearings are inconvenient for tightening bolts of different sizes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a marine engine main bearing bolt assembly and tightening mechanism, comprising: a handle, a connecting block installed on one side of the handle, a fixing block disposed between two sets of the connecting blocks, a connector connected to the end of the fixing block away from the handle, and a through hole being formed in the middle of the connector; An upper fixing ring and a lower fixing ring are respectively installed inside the through hole. A rotating ring is provided between the upper fixing ring and the lower fixing ring. An arc-shaped groove is opened through the middle of the rotating ring. A sliding column is connected through the middle of the arc-shaped groove. A sliding block is installed on the top of the sliding column. A pressure block is connected to one side of the sliding block. A sliding groove is opened through the top of the upper fixing ring. The sliding block is slidably connected in the sliding groove. A first worm gear is installed on the outer side of the rotating ring. The middle of the first worm gear has a hollow structure. A first worm shaft with a through connector is connected to one side of the first worm gear. A guide post is installed at the bottom of the rotating ring.

[0006] Preferably, the top of the lower fixing ring is provided with an arc-shaped groove, and the guide post is slidably connected in the arc-shaped groove.

[0007] Preferably, a rotating shaft passing through the connecting block is connected in the middle of the fixing block, and an mounting block is installed on one side of a set of connecting blocks.

[0008] Preferably, the fixed block forms a rotating structure with the connecting block via a rotating shaft.

[0009] Preferably, a second worm is connected through the top of the mounting block, and a second worm wheel is connected to one side of the second worm.

[0010] Preferably, the second worm gear is connected to a connecting shaft in the middle, and one end of the connecting shaft is connected to a rotating column.

[0011] Preferably, the rotating column forms a rotating structure with the second worm gear via a connecting shaft.

[0012] Preferably, connecting rods are mounted on both sides of the rotating column via rotating shafts, and a movable block is connected to the end of the connecting rod away from the rotating column via a rotating shaft.

[0013] Preferably, a locking block is installed at the end of the movable block away from the connecting rod, and two sets of locking blocks are symmetrically installed about the center line of the rotating column. A guide block is sleeved on the outer side of the movable block, and the guide block is installed inside the mounting block.

[0014] Preferably, the end of the rotating shaft near the mounting block has a toothed groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The main bearing bolt assembly tightening mechanism of this marine engine can clamp and limit bolts of different sizes by adjusting the position of the six sets of pressure blocks in the through hole of the connector, thus facilitating the tightening and fixing of bolts of different sizes and meeting the different usage needs of users.

[0016] 2. The main bearing bolt assembly tightening mechanism of the marine engine uses the rotational force of the rotating column to cause the connecting rod to drive the movable block, the locking block and the tooth groove at one end of the rotating shaft to separate. Then, the rotating shaft and the fixed block can drive the connecting head to rotate, thereby adjusting the tightening angle of the bolt. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the pressure block of the present invention; Figure 3 This is a first-view three-dimensional exploded view of the rotating ring of the present invention; Figure 4 This is a second-view three-dimensional exploded structure diagram of the rotating ring of the present invention; Figure 5 This is a three-dimensional structural diagram of the rotating shaft of the present invention; Figure 6 This is a three-dimensional structural diagram of the tooth groove of the present invention.

[0018] In the diagram: 1. Handle; 2. Connecting block; 3. Fixing block; 4. Connector; 5. Through hole; 6. Upper fixing ring; 7. Lower fixing ring; 8. Rotating ring; 9. Arc groove; 10. Sliding column; 11. Sliding block; 12. Pressure block; 13. First worm gear; 14. First worm; 15. Guide column; 16. Rotating shaft; 17. Mounting block; 18. Second worm; 19. Second worm gear; 20. Connecting shaft; 21. Rotating column; 22. Connecting rod; 23. Movable block; 24. Locking block; 25. Guide block; 26. Gear groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 The present invention provides a technical solution: a marine engine main bearing bolt assembly and tightening mechanism, comprising: a handle 1, a connecting block 2 installed on one side of the handle 1, a fixing block 3 between two sets of connecting blocks 2, a connector 4 connected to the end of the fixing block 3 away from the handle 1, and a through hole 5 through the middle of the connector 4. exist Figure 3 and Figure 4 In the middle, an upper fixing ring 6 and a lower fixing ring 7 are respectively installed inside the through hole 5. A rotating ring 8 is set between the upper fixing ring 6 and the lower fixing ring 7. An arc-shaped groove 9 is opened through the middle of the rotating ring 8. A sliding column 10 is connected through the middle of the arc-shaped groove 9.

[0021] The main bearing bolt assembly tightening mechanism of the ship's engine can support the middle rotating ring 8 through the upper fixed ring 6 and the lower fixed ring 7, while the sliding column 10 can slide along the arc groove 9 in the middle of the rotating ring 8.

[0022] exist Figure 3 and Figure 4 In the middle, a sliding block 11 is installed on the top of the sliding column 10, and a pressure block 12 is connected to one side of the sliding block 11. A groove is opened through the top of the upper fixing ring 6, and the sliding block 11 is slidably connected in the groove.

[0023] The main bearing bolt assembly tightening mechanism of the ship's engine uses a groove on the top of the upper fixed ring 6. When the sliding column 10 slides along the arc groove 9 in the middle of the rotating ring 8, it will drive the sliding block 11 to move in a straight line along the groove on the top of the upper fixed ring 6. Similarly, all six sets of sliding blocks 11 will move away from each other or move closer to each other.

[0024] exist Figures 2-4 In the middle, a first worm gear 13 is installed on the outer side of the rotating ring 8. The middle of the first worm gear 13 has a hollow structure. A first worm 14 is connected to one side of the first worm gear 13 through the connector 4. A guide post 15 is installed at the bottom of the rotating ring 8. An arc-shaped groove is opened through the top of the lower fixed ring 7. The guide post 15 is slidably connected in the arc-shaped groove.

[0025] The ship uses an engine main bearing bolt assembly tightening mechanism. By rotating the first worm 14, the first worm wheel 13 will rotate. When the first worm wheel 13 rotates, it will drive the middle rotating ring 8 to rotate. At the same time, the rotating ring 8 will rotate along the arc-shaped sliding groove at the top of the lower fixed ring 7 through the bottom guide post 15. When the rotating ring 8 rotates, it will drive the central arc groove 9 to rotate. Since the arc groove 9 is an arc structure, the rotation of the arc groove 9 will cause the central sliding column 10 to slide. The sliding block 11 at the top of the sliding column 10 will be guided by the top sliding groove of the upper fixed ring 6 and will drive the pressure block 12 to move. By adjusting the position of the pressure block 12 in the through hole 5 of the connector 4, the main bearing bolts of marine engines of different sizes can be clamped and fixed.

[0026] exist Figure 5 In the middle of the fixed block 3, a rotating shaft 16 is connected through the connecting block 2. A mounting block 17 is installed on one side of the connecting block 2. The fixed block 3 and the connecting block 2 form a rotating structure through the rotating shaft 16. A second worm 18 is connected through the top of the mounting block 17. A second worm wheel 19 is connected to one side of the second worm 18.

[0027] The main bearing bolt assembly tightening mechanism of the ship's engine uses a rotating shaft 16 in the middle of the connecting block 2 to make the connecting block 2 rotate along the fixed block 3. At the same time, the second worm 18 is rotated, which in turn drives the second worm wheel 19 to rotate.

[0028] exist Figure 6 In the middle of the second worm gear 19, a connecting shaft 20 is connected, and a rotating column 21 is connected to one end of the connecting shaft 20. The rotating column 21 forms a rotating structure with the second worm gear 19 through the connecting shaft 20.

[0029] The ship uses an engine main bearing bolt assembly tightening mechanism. When the second worm gear 19 rotates, it drives the connecting shaft 20 to rotate, and at the same time, the connecting shaft 20 drives the rotating column 21 to rotate.

[0030] exist Figure 6In the middle, connecting rods 22 are installed on both sides of the rotating column 21 via rotating shafts. The end of the connecting rod 22 away from the rotating column 21 is connected to a movable block 23 via a rotating shaft. A locking block 24 is installed on the end of the movable block 23 away from the connecting rod 22. Two sets of locking blocks 24 are symmetrically installed about the center line of the rotating column 21. A guide block 25 is sleeved on the outside of the movable block 23. The guide block 25 is installed inside the mounting block 17. A toothed groove 26 is opened on the end of the rotating shaft 16 near the mounting block 17.

[0031] The main bearing bolt assembly tightening mechanism of the ship's engine uses a connecting rod 22 connected to both sides of the rotating column 21 via a rotating shaft, and the other end of the connecting rod 22 connected to the movable block 23 via the rotating shaft. The movable block 23 can only move linearly via the guide block 25. Therefore, when one end of the connecting rod 22 rotates through the rotating column 21, it will pull the movable block 23 to move, causing the locking block 24 at one end of the movable block 23 to separate from the tooth groove 26 at one end of the rotating shaft 16. Without the locking block 24 limiting the tooth groove 26 at one end of the rotating shaft 16, the fixed block 3 can drive the connecting head 4 to rotate through the rotating shaft 16. When it is necessary to fix the angle of the connector 4, the second worm gear 18 can be rotated in the opposite direction, and then the above steps can be repeated in the opposite direction. At this time, the two sets of movable blocks 23 will drive the two sets of locking blocks 24 to move in the opposite direction and connect with the tooth groove 26 at one end of the rotating shaft 16. At this time, the rotating shaft 16 can be fixed, so that the rotating shaft 16 cannot drive the fixing block 3 and the connector 4 to rotate.

[0032] In summary: When using the marine engine main bearing bolt assembly and tightening mechanism, the handle 1 can be held, and the bolt head to be tightened can be aligned with the through hole 5 of the connector 4. Then, the first worm gear 14 is rotated so that the six sets of pressure blocks 12 inside the through hole 5 fit with the hexagonal sides of the bolt head. At this time, turning the handle 1 will cause the connector 4 to drive the bolt to rotate, thereby tightening the bolt. This is the characteristic of the marine engine main bearing bolt assembly and tightening mechanism. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Marine engine main bearing bolt assembly and tightening mechanism, including: The handle (1) is characterized in that a connecting block (2) is installed on one side of the handle (1), a fixing block (3) is provided between the two sets of connecting blocks (2), a connector (4) is connected to the end of the fixing block (3) away from the handle (1), and a through hole (5) is provided in the middle of the connector (4). The through hole (5) is equipped with an upper fixing ring (6) and a lower fixing ring (7). A rotating ring (8) is provided between the upper fixing ring (6) and the lower fixing ring (7). An arc groove (9) is provided through the middle of the rotating ring (8). A sliding column (10) is connected through the middle of the arc groove (9). A sliding block (11) is installed on the top of the sliding column (10). A pressure block (12) is connected to one side of the sliding block (11). A sliding groove is provided through the top of the upper fixing ring (6). The sliding block (11) is slidably connected in the sliding groove. A first worm gear (13) is installed on the outside of the rotating ring (8). The middle of the first worm gear (13) is hollow. A first worm (14) that passes through the connector (4) is connected to one side of the first worm gear (13). A guide column (15) is installed at the bottom of the rotating ring (8).

2. The marine engine main bearing bolt assembly and tightening mechanism according to claim 1, characterized in that: The top of the lower fixing ring (7) is provided with an arc-shaped sliding groove, and the guide post (15) is slidably connected in the arc-shaped sliding groove.

3. The marine engine main bearing bolt assembly and tightening mechanism according to claim 1, characterized in that: The fixing block (3) is connected in the middle by a rotating shaft (16) that passes through the connecting block (2), and a mounting block (17) is installed on one side of a set of the connecting blocks (2).

4. The marine engine main bearing bolt assembly and tightening mechanism according to claim 1, characterized in that: The fixed block (3) forms a rotating structure with the connecting block (2) through the rotating shaft (16).

5. The marine engine main bearing bolt assembly and tightening mechanism according to claim 3, characterized in that: The top of the mounting block (17) is connected to a second worm (18), and a second worm wheel (19) is connected to one side of the second worm (18).

6. The marine engine main bearing bolt assembly and tightening mechanism according to claim 5, characterized in that: The second worm gear (19) is connected to a connecting shaft (20) in the middle, and a rotating column (21) is connected to one end of the connecting shaft (20).

7. The marine engine main bearing bolt assembly and tightening mechanism according to claim 6, characterized in that: The rotating column (21) forms a rotating structure with the second worm gear (19) through the connecting shaft (20).

8. The marine engine main bearing bolt assembly and tightening mechanism according to claim 7, characterized in that: Both sides of the rotating column (21) are equipped with connecting rods (22) via rotating shafts, and the end of the connecting rod (22) away from the rotating column (21) is connected to a movable block (23) via a rotating shaft.

9. The marine engine main bearing bolt assembly and tightening mechanism according to claim 8, characterized in that: The movable block (23) is equipped with a locking block (24) at the end away from the connecting rod (22). Two sets of locking blocks (24) are symmetrically installed about the center line of the rotating column (21). The outer side of the movable block (23) is fitted with a guide block (25), and the guide block (25) is installed inside the mounting block (17).

10. The marine engine main bearing bolt assembly and tightening mechanism according to claim 3, characterized in that: The rotating shaft (16) has a toothed groove (26) at one end near the mounting block (17).

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