Limiting device for lifting cross beam of grid bracket of marine low-speed diesel engine
By installing a limiting device with a fixed hook and a shock absorber on the lifting beam of the marine low-speed diesel engine grille bracket, the problem of sliding collision of the trolley is solved, the trolley is stably fixed and impact is buffered, and the service life and safety of the equipment are improved.
Patent Information
- Application Number
- CN202520591578.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The limiting device of the lifting beam of the traditional marine low-speed diesel engine grid bracket cannot fix the position of the pulley when the hull is rocking, which causes the pulley to slide and collide, and the lack of a buffer structure makes it easy to be damaged.
A limiting device including a fixed hook, a limiting seat, a shock absorber rod, and a buffer plate was designed. The fixed hook fixes the position of the trolley, and the spring on the shock absorber rod provides cushioning to prevent damage to the limiting device.
It achieves stable fixation of the trolley and impact buffering, prevents damage to the limit device, and improves the safety of lifting operations and the life of the equipment.
Smart Images
Figure CN223836956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel engine technology, specifically to a limiting device for the lifting beam of a marine low-speed diesel engine grille bracket. Background Technology
[0002] In the field of marine low-speed diesel engines, the grid bracket lifting beam on the main engine plays a key role. It provides basic protection for the lifting of key components such as the piston connecting rod of the main engine. A trolley is installed on the lifting beam, and a hook is fixedly connected to the bottom of the trolley for lifting operations. The trolley slides on both sides of the lifting beam to adapt to lifting operations of different volumes. Limiting devices are set on both sides of the lifting beam to fix the beam and limit the sliding range of the trolley to prevent it from falling off.
[0003] In traditional designs, the lifting beam is usually limited by bolted spacers. When the trolley slides to the limiting device, it is blocked and limited. However, since the operation is on a ship, the swaying of the ship can cause the trolley on the lifting beam to slide. When the trolley slides to the position of the limiting device, the position of the trolley cannot be fixed, which can easily lead to collisions between multiple sets of trolleys. Moreover, the existing limiting devices usually do not have a buffer structure, which may be damaged after repeated impacts.
[0004] Therefore, it is necessary to provide a new limiting device for the lifting beam of the marine low-speed diesel engine grille bracket to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a limiting device for the lifting beam of the grille bracket of a marine low-speed diesel engine.
[0006] The limiting device for the lifting beam of the marine low-speed diesel engine grille bracket provided by this utility model includes:
[0007] A crossbeam, on which a pulley is mounted;
[0008] The fixed hook has a threaded hole on one side of the crossbeam, and there are multiple sets of threaded holes. Limit seats are fixedly connected to both sides of the crossbeam. First bolts are installed on both sides of the two sets of limit seats. There are multiple sets of first bolts. The inner side of the multiple sets of first bolts engages with the threaded hole. Hook seats are fixedly connected to both sides of the limit seats. Fixed hooks are movably connected to the inner side of the two sets of hook seats. Fixed seats are fixedly connected to both sides of the trolley.
[0009] Preferably, each of the two sets of limiting seats has a through hole on one side, and multiple sets of through holes are movably connected to shock-absorbing rods, which can limit the buffer plate.
[0010] Preferably, springs are fitted on each of the multiple shock absorber rods, and the buffer plate can be reset by the springs.
[0011] Preferably, storage seats are fixedly connected to both sides of the crossbeam, and fixed hooks can be placed in the storage seats.
[0012] Preferably, the other end of each set of shock absorber rods is fixedly connected to a limiting plate, which can prevent the shock absorber rods from falling off.
[0013] Preferably, one end of each of the multiple shock absorber rods is fixedly connected to a buffer plate, which can contact the trolley.
[0014] Preferably, the trolley is equipped with pulleys inside, and the trolley is movably connected to the crossbeam through the pulleys, so that the trolley can be moved by the pulleys.
[0015] Preferably, the bottom of the trolley is equipped with a lifting plate, which facilitates the lifting of goods.
[0016] Compared with related technologies, the limiting device for the lifting beam of the marine low-speed diesel engine grille bracket provided by this utility model has the following beneficial effects:
[0017] This utility model provides a limiting device for the lifting beam of a marine low-speed diesel engine grille bracket;
[0018] 1. This utility model can fix the position of the trolley by setting a fixed hook. After the trolley slides to one side on the crossbeam, one end of the fixed hook connected to the hook seat can be manually removed from the storage seat and the other end of the fixed hook can be hooked into the fixed seat set on the trolley, thereby fixing the trolley and limiting it to prevent it from sliding on the crossbeam.
[0019] 2. This utility model can reduce the impact of the trolley's limiting structure by setting a buffer plate. During the process of the trolley sliding to one side on the crossbeam, the buffer plate that is impacted can be buffered by the springs sleeved on the multiple sets of shock-absorbing rods, thereby preventing damage to the limiting device. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the limiting device for the lifting beam of the marine low-speed diesel engine grille bracket according to this utility model.
[0021] Figure 2 This is a side sectional view of the limiting device for the lifting beam of the marine low-speed diesel engine grille bracket according to this utility model.
[0022] Figure 3 This is a top sectional view of the limiting device for the lifting beam of the marine low-speed diesel engine grille bracket according to this utility model.
[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A.
[0024] The following are the labels in the diagram: 1. Crossbeam; 2. Limiting seat; 3. First bolt; 4. Pulley; 5. Pulley; 6. Hanging plate; 7. Shock absorber rod; 8. Limiting plate; 9. Spring; 10. Buffer plate; 11. Hook seat; 12. Fixed hook; 13. Storage seat; 14. Fixed seat. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] Please see Figures 1 to 4 This utility model provides a limiting device for the lifting beam of a marine low-speed diesel engine grille bracket, the limiting device comprising:
[0028] Crossbeam 1, on which a trolley 4 is installed;
[0029] The fixed hook 12, the crossbeam 1 has a threaded hole on one side, and there are multiple sets of threaded holes. Both sides of the crossbeam 1 are fixedly connected to the limit seat 2. The two sets of limit seats 2 are equipped with first bolts 3 on both sides. There are multiple sets of first bolts 3. The inner side of the multiple sets of first bolts 3 is engaged with the threaded hole. Both sides of the limit seat 2 are fixedly connected to the hook seat 11. The inner side of the two sets of hook seats 11 is movably connected to the fixed hook 12. Both sides of the trolley 4 are fixedly connected to the fixed seat 14.
[0030] It should be noted that after the trolley slides to one side on the crossbeam, one end of the fixed hook 12 movably connected to the hook seat 11 can be manually removed from the storage seat 13, and one end of the fixed hook 12 can be hooked into the fixed seat 14 set on the trolley 4, thereby fixing the trolley and limiting its sliding on the crossbeam. During the process of the trolley sliding to one side on the crossbeam, the springs 9 sleeved on the multiple sets of shock absorbers 7 can buffer the impacted buffer plate 10, thereby preventing damage to the limiting device.
[0031] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Each of the two sets of limiting seats 2 has a through hole on one side, and the inside of the multiple sets of through holes is movably connected to a shock-absorbing rod 7. The shock-absorbing rod 7 can limit the buffer plate 10.
[0032] In the embodiments of this utility model, please refer to Figure 1 and Figure 4Each of the multiple shock absorber rods 7 is fitted with a spring 9, which can be used to reset the buffer plate 10.
[0033] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Both sides of the crossbeam 1 are fixedly connected to storage seats 13, through which fixed hooks 12 can be placed.
[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The other end of each set of shock absorber rods 7 is fixedly connected to a limiting plate 8, which can prevent the shock absorber rods 7 from falling off.
[0035] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Each of the multiple shock absorber rods 7 has a buffer plate 10 fixedly connected to one end, and the buffer plate 10 can contact the trolley 4.
[0036] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The trolley 4 is equipped with pulleys 5 inside. The trolley 4 is movably connected to the crossbeam 1 through the pulleys 5. The trolley 4 can be moved by the pulleys 5.
[0037] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The bottom of the trolley 4 is equipped with a lifting plate 6, which allows for convenient hoisting of goods.
[0038] The working principle of the limiting device for the lifting beam of the marine low-speed diesel engine grille bracket provided by this utility model is as follows:
[0039] In use, firstly, after the trolley slides to one side on the crossbeam, one end of the fixed hook 12 movably connected to the hook seat 11 is manually removed from the storage seat 13, and one end of the fixed hook 12 is hooked into the fixed seat 14 set on the trolley 4, thereby fixing the trolley and limiting it to prevent it from sliding on the crossbeam. During the process of the trolley sliding to one side on the crossbeam, the springs 9 sleeved on the multiple sets of shock absorbers 7 can buffer the impacted buffer plate 10, thereby preventing damage to the limiting device.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A limiting device for the lifting beam of a marine low-speed diesel engine grille bracket, characterized in that, include: A crossbeam (1), on which a trolley (4) is mounted; The fixed hook (12) has a threaded hole on one side of the crossbeam (1), and multiple sets of threaded holes are provided. Both sides of the crossbeam (1) are fixedly connected to the limiting seat (2). The two sets of limiting seats (2) are equipped with first bolts (3). Multiple sets of first bolts (3) are provided. The inner side of the multiple sets of first bolts (3) is engaged with the threaded hole. Both sides of the limiting seat (2) are fixedly connected to the hook seat (11). The inner side of the two sets of hook seats (11) is movably connected to the fixed hook (12). Both sides of the trolley (4) are fixedly connected to the fixed seat (14).
2. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 1, characterized in that: Both sets of limiting seats (2) have through holes on one side, and shock absorber rods (7) are movably connected inside the through holes.
3. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 2, characterized in that: Springs (9) are fitted onto each of the multiple sets of shock absorber rods (7).
4. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 1, characterized in that: Storage seats (13) are fixedly connected to both sides of the crossbeam (1).
5. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 2, characterized in that: The other end of each of the multiple sets of shock absorber rods (7) is fixedly connected to a limit plate (8).
6. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 2, characterized in that: Each of the multiple sets of shock absorber rods (7) has a buffer plate (10) fixedly connected to one end.
7. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 1, characterized in that: The trolley (4) is equipped with pulleys (5) inside, and the trolley (4) is movably connected to the crossbeam (1) through the pulleys (5).
8. The limiting device for the lifting beam of a marine low-speed diesel engine grille bracket according to claim 1, characterized in that: The bottom of the trolley (4) is equipped with a hanging plate (6).