Shock absorption structure for deck crane base of automobile roll-on-roll-off ship
By installing the crane barrel, reinforcement elbow plate, first and second reinforcement truss, reinforcement ribs and other components on the deck hoist structure of the car transport ship, a complete reinforcement structure is formed, which solves the vibration problem of the deck hoist when the motor is working, improves the stiffness and strength of the structure, and avoids resonance.
Patent Information
- Application Number
- CN202421492277.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The deck lifting structure of existing automobile transport ships is prone to vibration when the motor is working, and conventional reinforcement structures are difficult to effectively solve this problem.
A vibration-avoiding structure of the automobile Ro-ro-ship deck hanging base is designed. By setting up a crane barrel, reinforcement elbow plate, first and second reinforcement trusses, reinforcement ribs and other components on the vehicle deck, a complete reinforcement structure is formed to increase the stiffness of the structure and avoid the working frequency of the motor.
It effectively improves the strength of the crane working load, solves the structural vibration problems caused by the deck crane, avoids structural resonance when the motor is working normally, and is simple to construct and has strong operability.
Smart Images
Figure CN222611334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ships, in particular to a vibration-proof structure for a deck hanging base of a car roll-on / roll-off ship. Background Art
[0002] The deck crane (material crane, rescue boat crane) of a car carrier is usually located on the uppermost vehicle deck and driven by a motor. The vehicle deck supporting the deck crane is mainly composed of deck beams and longitudinal bones.
[0003] Conventional reinforcement under cranes generally adopts a cross-shaped reinforcement structure, that is, reinforcement is carried out along the length and width direction at the center of the crane. This reinforcement structure can meet the structural yield strength problem caused by the crane's working load, but it is difficult to meet the vibration problem caused by the motor working.
[0004] The crane is driven by an electric motor or hydraulic motor when it is working. The operating frequency of the driving motor is very close to the natural frequency of the vehicle deck grid supported below. When the motor is working normally, the deck grid below, which is closer to the crane, produces a large vibration phenomenon.
[0005] Conventional reinforcement under the deck crane only considers the structural strength but ignores the structural stiffness, which easily causes vibration of the structure near the deck crane when the motor is working. Utility Model Content
[0006] The technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a vibration-proof structure for a deck hanging base of a car roll-on / roll-off ship.
[0007] The utility model solves the above technical problems through the following technical solutions:
[0008] A vibration-isolating structure for a deck crane base of a car ro-ro ship, comprising a crane cylinder fixedly connected to the vehicle deck, the crane cylinder being arranged through the vehicle deck; the crane cylinder extending to the bottom of the vehicle deck; a plurality of reinforcing toggle plates fixedly provided on the upper surface of the vehicle deck, the reinforcing toggle plates being simultaneously fixedly connected to the crane cylinder, the reinforcing toggle plates being distributed around the crane cylinder; a first reinforcing girder and a second reinforcing girder fixedly provided on the lower surface of the vehicle deck; the first reinforcing girder being fixedly connected to the crane cylinder, the first reinforcing girder being distributed around the crane cylinder; the second reinforcing girder being arranged on the outside of the first reinforcing girder.
[0009] Furthermore, the vehicle deck is provided with a first strong frame, and the crane barrel, the first reinforcing girder and the second reinforcing girder are all arranged in the first strong frame.
[0010] Furthermore, the vehicle deck is provided with two second strong frames, which are respectively arranged in front and behind the first strong frame; reinforcing ribs are fixed in both the first strong frame and the second strong frame; the reinforcing ribs in the first strong frame are arranged on the outside of the second reinforcing girder.
[0011] Furthermore, the reinforcing bracket and the first reinforcing girder are aligned vertically.
[0012] Furthermore, the reinforcing brackets are evenly distributed around the crane barrel, and the angles between adjacent reinforcing brackets are the same.
[0013] Furthermore, there are 8 reinforcing brackets, and the angle between adjacent reinforcing brackets is 45°.
[0014] Furthermore, a deck beam is fixedly provided on the lower surface of the vehicle deck.
[0015] Further, the height of the first reinforcing girder, the height of the second reinforcing girder and the height of the deck beam are all the same.
[0016] Furthermore, the height of the portion of the crane cylinder located below the vehicle deck is not greater than the height of the deck beam.
[0017] Furthermore, the first reinforcing girder and the second reinforcing girder are both T-shaped structures.
[0018] The beneficial effects of the utility model are as follows: the structural reinforcement form of the utility model improves the rigidity of the reinforced structure, meets the strength problem caused by the crane working load, and also solves the structural vibration problem caused by the deck crane, avoids the working frequency of the motor, and avoids structural resonance when the deck crane motor works normally.
[0019] The utility model has unified strengthening forms, is relatively simple to construct and has strong operability. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.
[0021] Figure 2 for Figure 1 AA section diagram. DETAILED DESCRIPTION
[0022] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.
[0023] like Figure 1 and Figure 2 As shown, a vibration-proof structure of a deck crane base of a car ro-ro ship includes a crane cylinder 20 fixed to a vehicle deck 10, and the crane cylinder 20 is located inside a hull outer plate 30. The crane cylinder 20 penetrates the vehicle deck 10; the crane cylinder 20 extends to the bottom of the vehicle deck 10.
[0024] A plurality of reinforcing brackets 11 are fixedly disposed on the upper surface of the vehicle deck 10 . The reinforcing brackets 11 are also fixedly connected to the crane cylinder 20 . The reinforcing brackets 11 are distributed around the crane cylinder 20 .
[0025] In this embodiment, the reinforcing brackets 11 are evenly distributed around the crane barrel 20, and the angles between adjacent reinforcing brackets are the same. Further, there are 8 reinforcing brackets, and the angles between adjacent reinforcing brackets are 45°.
[0026] A first reinforcing girder 21 and a second reinforcing girder 22 are fixedly provided on the lower surface of the vehicle deck 10 ; the first reinforcing girder 21 is fixedly connected to the crane cylinder 20 , and the first reinforcing girder 21 is distributed around the crane cylinder 20 .
[0027] The reinforcing brackets 11 are aligned with the first reinforcing girders 21. The number of the first reinforcing girders is the same as the number of the reinforcing brackets.
[0028] In this embodiment, the first reinforcing girders 21 are evenly distributed around the crane barrel 20, and the angles between adjacent first reinforcing girders 21 are the same. Further, there are 8 first reinforcing girders, and the angles between adjacent first reinforcing girders 21 are 45°.
[0029] The second reinforcing girder 22 is disposed outside the first reinforcing girder 21 .
[0030] The first reinforcing girder 21 and the second reinforcing girder 22 are both T-shaped structures.
[0031] The vehicle deck 10 is provided with a first strong frame 31 , and the crane barrel 20 , the first reinforcing girder 21 and the second reinforcing girder 22 are all provided in the first strong frame 31 .
[0032] The vehicle deck 10 is provided with two second strong frames 32, which are respectively arranged in front and behind the first strong frame 31; reinforcing ribs 23 are fixed in both the first strong frame 31 and the second strong frame 32, and the reinforcing ribs in the first strong frame are arranged on the outside of the second reinforcing girder.
[0033] The lower surface of the vehicle deck 10 is fixed with a deck beam 41 and a deck longitudinal 42. The stiffeners are perpendicular to the deck longitudinals, and the stiffeners are parallel to the deck beams.
[0034] The height of the first reinforcing girder 21 , the height of the second reinforcing girder 22 , and the height of the deck beam 41 are all the same.
[0035] The height of the portion of the crane cylinder 20 located below the vehicle deck is not greater than the height of the deck beam 41 .
[0036] It should be noted that Figure 1 It is a top view, the positions of the first reinforcing girder and the reinforcing bracket coincide, so, Figure 1In the overlapping position of the first reinforcing girder and the reinforcing bracket, only the reinforcing bracket is shown, and the first reinforcing girder is not shown; the position of the first reinforcing girder is the position of the reinforcing bracket.
[0037] In the utility model, by extending the crane barrel downward and arranging a reinforcing toggle plate, a first reinforcing girder, a second reinforcing girder and reinforcing ribs, the structural strength of the crane barrel position is improved and the natural frequency of the plate grid in this area can be increased, thereby avoiding the natural frequency of the deck crane drive motor and avoiding resonance when the motor is working normally.
[0038] The structural reinforcement form of the utility model improves the rigidity of the reinforced structure, meets the strength problem caused by the crane working load, and also solves the structural vibration problem caused by the deck crane, avoids the working frequency of the motor, and avoids structural resonance when the deck crane motor works normally.
[0039] The utility model solves the vibration problem caused by the vehicle deck crane of the automobile transport ship, has a unified reinforcement form, is relatively simple to construct, and has strong operability.
[0040] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.
Claims
1. A vibration-proof structure for a deck crane base of a car ro-ro ship, comprising a crane cylinder fixed to the vehicle deck, characterized in that: The crane cylinder is passed through the vehicle deck; the crane cylinder extends to the bottom of the vehicle deck; a plurality of reinforcing brackets are fixedly provided on the upper surface of the vehicle deck, the reinforcing brackets are fixedly connected to the crane cylinder at the same time, and the reinforcing brackets are distributed around the crane cylinder; a first reinforcing girder and a second reinforcing girder are fixedly provided on the lower surface of the vehicle deck; the first reinforcing girder is fixedly connected to the crane cylinder, and the first reinforcing girder is distributed around the crane cylinder; the second reinforcing girder is arranged on the outside of the first reinforcing girder.
2. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 1, characterized in that: The vehicle deck is provided with a first strong frame, and the crane barrel, the first reinforcing girder and the second reinforcing girder are all arranged in the first strong frame.
3. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 2, characterized in that: The vehicle deck is provided with two second strong frames, which are respectively arranged in front and rear of the first strong frame; reinforcing ribs are fixed in both the first strong frame and the second strong frame; the reinforcing ribs in the first strong frame are arranged on the outer side of the second reinforcing girder.
4. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 1, characterized in that: The reinforcing bracket and the first reinforcing girder are aligned vertically.
5. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 1, characterized in that: The reinforcing brackets are evenly distributed around the crane barrel, and the angles between adjacent reinforcing brackets are the same.
6. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 5, characterized in that: There are 8 reinforcing brackets, and the angle between adjacent reinforcing brackets is 45°.
7. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 1, characterized in that: A deck beam is fixedly arranged on the lower surface of the vehicle deck.
8. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 7, characterized in that: The height of the first reinforcing girder, the height of the second reinforcing girder and the height of the deck beam are all the same.
9. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 7, characterized in that: The height of the portion of the crane cylinder located below the vehicle deck is not greater than the height of the deck beam.
10. The vibration-proof structure of the deck hanging base of a car ro-ro ship according to claim 1, characterized in that: The first reinforcing girder and the second reinforcing girder are both T-shaped structures.