Protection device for cargo boom of crawler crane on offshore wind power hoisting platform

Abstract

The utility model discloses a protection device for a lifting arm of a crawler crane on an offshore wind power hoisting platform. The protection device comprises a protection device body which is installed on the lifting arm and makes contact with a rest stand during use. Comprising a semi-arc rigid outer plate A and a semi-arc rigid outer plate B, a semi-circular-arc-shaped wear-resistant layer A is fixed to the inner face of the rigid outer plate A, and a semi-circular-arc-shaped wear-resistant layer B is fixed to the inner face of the rigid outer plate B. The cargo boom is protected by the wear-resistant layer A and the wear-resistant layer B and is in contact with the rest stand through the rigid outer plate A and the rigid outer plate B. When the cargo boom and the rest stand slide due to wind, the condition of abrasion caused by contact sliding friction between the main boom and the rest stand is avoided, the safety of the cargo boom is ensured, and the service life of the cargo boom is prolonged. The problem that the cargo boom is damaged easily due to repeated sliding friction between the cargo boom and the shelf under the influence of sea wind is solved.

Description

Technical Field

[0001] The utility model relates to a protective device for a crawler crane boom on an offshore wind power hoisting platform, belonging to the technical field of cranes. Background Art

[0002] During offshore wind power installation, a crawler crane needs to be installed on the offshore wind power installation platform to hoist the wind turbine blades, etc. The boom of the crawler crane is normally installed on the crawler crane's shelf for sliding (see Chinese patent announcement number CN2885806). In the offshore environment, the sea breeze is strong, and the boom and the shelf will slide and rub repeatedly under the influence of the sea breeze, which can easily cause damage to the boom. Since the boom is a lifting force-bearing component, damage to the boom will affect the safety of the subsequent lifting. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a protective device for the boom of a crawler crane on an offshore wind power hoisting platform.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a protective device for a crawler crane boom on an offshore wind power hoisting platform, comprising:

[0006] A protective device installed on the crane arm to contact the shelf when in use.

[0007] Including: semi-circular arc rigid outer plate A and rigid outer plate B;

[0008] A semicircular wear-resistant layer A is fixed on the inner surface of the rigid outer plate A, and a semicircular wear-resistant layer B is fixed on the inner surface of the rigid outer plate B.

[0009] The rigid outer plates A and B are made of arc-shaped steel plates.

[0010] Both sides of the rigid outer plate A are fixedly connected with strip rigid plates A; both sides of the rigid outer plate B are fixedly connected with strip rigid plates B; the strip rigid plates A and the strip rigid plates B are detachably fixedly connected by bolts and nuts.

[0011] The rigid outer panel A is integrally formed and fixedly connected with the strip rigid panel A; the rigid outer panel B is integrally formed and fixedly connected with the strip rigid panel B.

[0012] The strip rigid plate A of the rigid outer plate A and the strip rigid plate B of the rigid outer plate B are both provided with through holes for bolts to pass through.

[0013] The rigid outer plate A is bonded and fixed to the wear-resistant layer A; the rigid outer plate B is bonded and fixed to the wear-resistant layer B; the wear-resistant layer A and the wear-resistant layer B are both elastic wear-resistant rubber plates.

[0014] The inner surfaces of the wear-resistant layer A and the wear-resistant layer B are both fixed with corrugated strips; the corrugated strips are multiple strips distributed at intervals, and the corrugated strips are in a wave shape.

[0015] The beneficial effects of the utility model are as follows: the boom is protected by the wear-resistant layer A and the wear-resistant layer B and is in contact with the shelf frame through the rigid outer plate A and the rigid outer plate B. When the boom and the shelf frame slide due to wind, wear caused by contact sliding friction between the main boom and the shelf frame is avoided, thereby ensuring the safety of the boom and solving the problem that the boom and the shelf frame may be repeatedly slid and rubbed due to the influence of sea breeze, which may easily lead to damage to the boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model when it is used;

[0017] Figure 2 It is a structural schematic diagram of the utility model;

[0018] In the figure: 1-rigid outer plate A; 2-rigid outer plate B; 11-strip rigid plate A; 12-strip rigid plate B; 21-wear-resistant layer A; 22-wear-resistant layer B; 23-corrugated strip; 3-lifting arm; 31-main arm; 32-telescopic jib; 4-shelf; 51-bolt; 52-nut. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0020] like Figure 1 to Figure 2 shown.

[0021] The present application discloses a protective device for a crawler crane boom on an offshore wind power hoisting platform, comprising:

[0022] The semi-circular rigid outer panels A1 and B2 are made of arc steel plates. Both sides of the rigid outer panel A1 are integrally formed and fixedly connected with strip rigid panels A11; both sides of the rigid outer panel B2 are integrally formed and fixedly connected with strip rigid panels B12.

[0023] The strip rigid plate A11 of the rigid outer plate A1 and the strip rigid plate B12 of the rigid outer plate B2 are both provided with through holes for the bolts 51 to pass through. The strip rigid plate A11 of the rigid outer plate A1 and the strip rigid plate B12 of the rigid outer plate B2 are detachably fixedly connected by bolts 51 and nuts 52.

[0024] A semi-circular wear-resistant layer A21 is bonded and fixed to the inner surface of the rigid outer plate A1, and a semi-circular wear-resistant layer B22 is bonded and fixed to the inner surface of the rigid outer plate B2. The wear-resistant layer A21 and the wear-resistant layer B22 form a full circle, and the wear-resistant layer A21 and the wear-resistant layer B22 are both elastic wear-resistant rubber plates. Wave strips 23 are fixed to the inner surfaces of the wear-resistant layer A21 and the wear-resistant layer B22; the wave strips 23 are multiple wave strips distributed at intervals, and the wave strips 23 are wave-shaped and made of the same material as the wear-resistant layer A21 and the wear-resistant layer B22. The interval-type wave strips 23 can be installed to reduce the amplitude of vibration transmission through air, so as to avoid resonance of the boom 3 itself and affect the telescopic performance of the telescopic auxiliary arm 32 at the telescopic fitting point in the main arm 31.

[0025] The rigid outer plate A1 and the rigid outer plate B2 are sleeved on the outside of the boom 3 with the corresponding wear-resistant layers A21 and B22 on the inner surfaces, and the spaced wave strips 23 on the inner surfaces of the wear-resistant layers A21 and B22 are squeezed and contacted on the boom 3. The boom 3 is protected by the wear-resistant layers A21 and B22 and is in contact with the shelf 4 through the rigid outer plates A1 and B2. When the main boom 31 that cannot be telescoped in the boom 3 and the shelf 4 slide due to wind, the contact sliding friction between the main boom 31 and the shelf 4 is avoided to cause wear, thereby ensuring the safety of the boom 3 and solving the problem that the boom and the shelf are repeatedly slid and rubbed due to the influence of sea breeze, which may easily lead to damage to the boom.

Claims

1. A protective device for the boom of a crawler crane on an offshore wind power hoisting platform, characterized in that: include: A protective device installed on the lifting arm (3) to contact the shelf (4) when in use; It includes: semi-circular arc-shaped rigid outer plate A (1) and rigid outer plate B (2); A semicircular wear-resistant layer A (21) is fixed on the inner surface of the rigid outer plate A (1), and a semicircular wear-resistant layer B (22) is fixed on the inner surface of the rigid outer plate B (2).

2. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 1, characterized in that: The rigid outer plate A (1) and the rigid outer plate B (2) are made of arc-shaped steel plates.

3. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 1, characterized in that: Both sides of the rigid outer plate A (1) are fixedly connected with strip rigid plates A (11); both sides of the rigid outer plate B (2) are fixedly connected with strip rigid plates B (12); the strip rigid plates A (11) and the strip rigid plates B (12) are detachably fixedly connected by bolts (51) and nuts (52).

4. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 3, characterized in that: The rigid outer panel A (1) is integrally formed and fixedly connected to the strip-shaped rigid panel A (11); the rigid outer panel B (2) is integrally formed and fixedly connected to the strip-shaped rigid panel B (12).

5. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 3, characterized in that: The strip-shaped rigid plate A (11) of the rigid outer plate A (1) and the strip-shaped rigid plate B (12) of the rigid outer plate B (2) are both provided with through holes for the bolts (51) to pass through.

6. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 1, characterized in that: The rigid outer plate A (1) is bonded and fixed to the wear-resistant layer A (21); the rigid outer plate B (2) is bonded and fixed to the wear-resistant layer B (22); the wear-resistant layer A (21) and the wear-resistant layer B (22) are both elastic wear-resistant rubber plates.

7. The protective device for the boom of a crawler crane on an offshore wind power hoisting platform according to claim 1, characterized in that: The inner surfaces of the wear-resistant layer A (21) and the wear-resistant layer B (22) are both fixed with wave strips (23); the wave strips (23) are multiple and spaced apart, and the wave strips (23) are in a wave shape.

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