Wind shield device of combined tower crane

Abstract

The utility model discloses a wind shield device of a combined tower crane. The wind shield device comprises a suspension arm main body, the suspension arm main body comprises a group of upper arms and two groups of lower arms, and the lower arms and the upper arms are connected together through connecting structures; the connecting structure comprises first connecting rods and second connecting rods, the lower ends of the first connecting rods and the lower ends of the second connecting rods are welded to the lower arm, the upper ends of the first connecting rods and the upper ends of the second connecting rods are welded to the bottom of the upper arm, and two sets of first connecting rods are symmetrically arranged on the two sides of each set of second connecting rods in a splayed mode. A wind shield structure; the wind shield structures are arranged between every two adjacent second connecting rods, each wind shield structure comprises two guide rods and a wind shield, the two guide rods are arranged between the upper ends and the lower ends of the adjacent second connecting rods respectively, and the wind shields are arranged between the two guide rods. The device is simple in structure, easy to install, high in universality, free of damage and capable of being recycled, and replacement cost is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind shielding structures of tower cranes, in particular to a combined wind shielding plate device for tower cranes. Background Art

[0002] When a tower crane encounters strong winds, the brake of the slewing mechanism should be released to allow the crane boom to rotate with the wind, so as to release the kinetic energy of the wind load to the maximum extent, enhance the wind resistance and resist the attack of strong typhoons. Generally, when the arm length is less than 40 meters, it is necessary to add several wind shields on the side of the front arm section to increase the windward area of ​​the arm section, so that the boom can rotate with the wind.

[0003] The wind shields provided by tower crane manufacturers are mostly connected by field holes, usually by fixing the wind shields on the chords on both sides of the boom section through U-bolts and clamps. This connection method faces the following problems: First, the number and position of wind shields need to be adjusted according to different boom lengths. Second, the diameter, position and angle of the chords on both sides of the boom section of different models of tower cranes are different.

[0004] The above changes lead to the change of the connection position between the windshield and the chord, and it needs to be re-drilled and re-assembled after each use. On the one hand, the windshield is damaged, resulting in connection failure, falling off, and accidents. On the other hand, the construction efficiency is reduced. Therefore, we need to propose a combined tower crane windshield device. Utility Model Content

[0005] The purpose of the utility model is to provide a combined tower crane wind shield device, which has a simple structure, simple installation, strong versatility, can be recycled without damage, and effectively saves replacement costs; compared with the original connection method, it effectively protects the material from being damaged, has wide applicability and versatility, is efficient and convenient, can be reused, can improve efficiency and save costs, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A combined tower crane wind shield device, comprising:

[0008] Boom body;

[0009] The boom body comprises a set of upper arms and two sets of lower arms, and the lower arms and the upper arms are connected together by a connecting structure;

[0010] The connection structure comprises a first connecting rod and a second connecting rod, the lower ends of the first connecting rod and the second connecting rod are welded to the lower arm, the upper ends of the first connecting rod and the second connecting rod are welded to the bottom of the upper arm, and two groups of first connecting rods are symmetrically arranged in an eight-shaped shape on both sides of each group of second connecting rods;

[0011] Wind deflector structure;

[0012] The windshield structure is arranged between two adjacent groups of second connecting rods, and each group of windshield structures includes two groups of guide rods and one group of windshields. The two groups of guide rods are respectively arranged between the upper ends and lower ends of adjacent second connecting rods, and the windshield is arranged between the two groups of guide rods.

[0013] Preferably, the windshield is composed of a plurality of blades, a sub-piece is integrally formed on one side of the blade, a main piece is integrally formed on the other side of the blade, and adjacent blades are buckled together by the sub-piece and the main piece.

[0014] Preferably, the upper end and the lower end of the blade are respectively fixed to the two groups of guide rods by locking clips, and the locking clips are provided with slots for inserting the ends of the blades. After the ends of the blades are inserted into the slots, they are locked to be fixed.

[0015] Preferably, a reinforcing rod is further provided between the two groups of guide rods, and the reinforcing rod is located on one side of the wind shield plate to improve the wind resistance of the wind shield plate.

[0016] Preferably, fixing fixtures are correspondingly installed on two adjacent groups of the second connecting rods, and the reinforcing rods and the guide rods are fixed between the two adjacent groups of the second connecting rods by the fixing fixtures.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model has the advantages of simple structure, simple installation, strong versatility, no damage and recyclable use, effectively saving replacement cost; compared with the original connection method, it effectively protects the material from being damaged, has wide applicability and versatility, is efficient and convenient, can be reused, can improve efficiency and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the windshield structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the blade of the utility model.

[0022] In the figure: 1, upper arm; 2, lower arm; 3, first connecting rod; 4, second connecting rod; 5, guide rod; 6, blade; 7, locking card; 8, card slot; 9, sub-piece; 10, mother piece; 11, reinforcement rod; 12, fixing fixture. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , the utility model provides a technical solution:

[0025] A combined tower crane wind shield device, comprising:

[0026] The boom body; the boom body comprises a set of upper arms 1 and two sets of lower arms 2, and the lower arms 2 and the upper arms 1 are connected together by a connecting structure;

[0027] The connection structure includes a first connection rod 3 and a second connection rod 4, the lower ends of the first connection rod 3 and the second connection rod 4 are welded to the lower arm 2, the upper ends of the first connection rod 3 and the second connection rod 4 are welded to the bottom of the upper arm 1, and two groups of first connection rods 3 are symmetrically arranged in an eight-shaped shape on both sides of each group of second connection rods 4;

[0028] Windshield structure; the windshield structure is arranged between two adjacent groups of second connecting rods 4, each group of windshield structures includes two groups of guide rods 5 and a group of windshields, the two groups of guide rods 5 are respectively arranged between the upper ends and lower ends of adjacent second connecting rods 4, and the windshield is arranged between the two groups of guide rods 5.

[0029] More specifically, see Figure 2-3 :

[0030] The windshield is composed of a plurality of blades 6, one side of the blade 6 is integrally provided with a sub-piece 9, the other side of the blade 6 is integrally provided with a mother piece 10, and adjacent blades 6 are buckled together by the sub-pieces 9 and the mother piece 10. The upper and lower ends of the blade 6 are respectively fixed to the two groups of guide rods 5 by locking clips 7, and the locking clips 7 are provided with slots 8 for inserting the ends of the blades 6, and the ends of the blades 6 are inserted into the slots 8 and locked to be fixed.

[0031] A reinforcing rod 11 is also provided between the two groups of guide rods 5. The reinforcing rod 11 is located on one side of the windshield to improve the wind resistance of the windshield. A fixing fixture 12 is correspondingly installed on two adjacent groups of second connecting rods 4. The reinforcing rod 11 and the guide rod 5 are fixed between the two adjacent groups of second connecting rods 4 through the fixing fixture 12.

[0032] The present application uses two upper and lower guide rods 5 to connect the blade 6 components in series, and adds a reinforcing rod 11 in the middle to improve the overall stability, so that the blade 6 can be closely fitted with the arm section, and has good structural stability and high structural strength, so as to have high wind resistance;

[0033] At the same time, the number of blade 6 components can be increased or decreased to meet different requirements and meet the demand for windward area. The number of blades 6 can be increased or decreased according to actual needs to meet the needs of different windward areas;

[0034] Moreover, the component assembly method is adopted, and is not limited by factors such as the position and angle of the chord, and is suitable for the needs of different models of tower cranes, thereby improving versatility and installation efficiency, saving cost investment, and being convenient and fast.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A combined tower crane windshield device, characterized in that: include: Boom body; The boom body comprises a set of upper arms (1) and two sets of lower arms (2), and the lower arms (2) and the upper arms (1) are connected together via a connecting structure; The connection structure comprises a first connection rod (3) and a second connection rod (4), the lower ends of the first connection rod (3) and the second connection rod (4) are welded to the lower arm (2), the upper ends of the first connection rod (3) and the second connection rod (4) are welded to the bottom of the upper arm (1), and two groups of first connection rods (3) are symmetrically arranged in an eight-shaped shape on both sides of each group of second connection rods (4); Wind deflector structure; The windshield structure is arranged between two adjacent groups of second connecting rods (4), each group of windshield structures comprises two groups of guide rods (5) and a group of windshields, the two groups of guide rods (5) are arranged between the upper ends and between the lower ends of adjacent second connecting rods (4), respectively, and the windshield is arranged between the two groups of guide rods (5).

2. A combined tower crane wind shield device according to claim 1, characterized in that: The windshield is composed of a plurality of groups of blades (6), a sub-piece (9) is integrally formed on one side of the blade (6), a main piece (10) is integrally formed on the other side of the blade (6), and adjacent blades (6) are buckled together via the sub-pieces (9) and the main piece (10).

3. A combined tower crane wind shield device according to claim 2, characterized in that: The upper end and the lower end of the blade (6) are respectively fixed to the two sets of guide rods (5) by means of locking clips (7); the locking clips (7) are provided with slots (8) for inserting the ends of the blades (6); the ends of the blades (6) are inserted into the slots (8) and locked to be fixed.

4. The combined tower crane wind shield device according to claim 1, characterized in that: A reinforcing rod (11) is also provided between the two groups of guide rods (5); the reinforcing rod (11) is located on one side of the wind shield and is used to improve the wind resistance of the wind shield.

5. A combined tower crane wind shield device according to claim 4, characterized in that: Fixing fixtures (12) are correspondingly mounted on two adjacent groups of the second connecting rods (4), and the reinforcing rods (11) and the guide rods (5) are both fixed between the two adjacent groups of the second connecting rods (4) via the fixing fixtures (12).

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