Single-boom gantry crane provided with main and auxiliary hoisting mechanisms

Abstract

The utility model relates to a single-boom gantry crane provided with a main hoisting mechanism and an auxiliary hoisting mechanism, which belongs to the technical field of hoisting equipment and comprises a gantry, a cylinder and a support frame for supporting the cylinder are mounted on the gantry, a machine room, a propeller strut and a boom are arranged at the top end of the cylinder, and the main hoisting mechanism, the auxiliary hoisting mechanism and a luffing mechanism are arranged in the machine room. A pulley row is installed at the top end of the A-frame, a main hook, an auxiliary hook and a lock hook are installed at the top end of the arm frame, a steel wire rope of the main lifting mechanism bypasses the pulley row to be connected with the main hook, a steel wire rope of the auxiliary lifting mechanism bypasses the pulley row to be connected with the auxiliary hook, and a steel wire rope of the luffing mechanism bypasses the pulley row to be connected with the top end of the arm frame. According to the utility model, a proper lifting appliance can be selected and used according to the lifting weight, so that the working efficiency is improved, and meanwhile, the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single-boom portal crane with main and auxiliary lifting mechanisms and belongs to the technical field of hoisting equipment. BACKGROUND

[0002] In the manufacturing process of large-scale port cranes, hoisting machinery plays a very important role. Mobile large-scale crawler cranes are widely used. Some installation type portal cranes have small lifting capacity, and the luffing mechanism adopts a gear and rack form. The luffing mechanism is arranged on a luffing platform in the middle of the upper rotary column or the A-frame. The working environment of port hoisting is various, and the weight of the goods to be hoisted is also different. Most of the existing port hoisting equipment only has one lifting hook, which cannot be applied to goods of different weights, affecting the work efficiency and increasing the cost.

[0003] The patent with the application number CN201721702322.6 discloses a portal port crane, which includes a rotary column, a support bottom plate at the bottom of the rotary column, two support frames at the bottom of the support bottom plate, rollers connected to the bottom of the two support frames, an extension fixing column connected to the bottom of the support bottom plate between the two support frames, a workbench at the top of the rotary column, a simple platform passing through the rotary column below the workbench, an elevator passing through the rotary column below the simple platform, a ladder passing through the rotary column connecting the simple platform and the workbench, a control room on the workbench, a fixed frame on the workbench to the right of the control room, a lifting arm in front of the fixed frame, an extension rod connecting the fixed frame and the lifting arm, two lifting rods on the fixed frame, a lifting connecting column connecting the lifting rods and the lifting arm, a sliding extension hook on the lifting arm, and a lifting line connecting the sliding extension hook and the fixed frame. The crane only has one hook, which cannot be applied to goods of different weights, affecting the work efficiency and increasing the cost. UTILITARIAN CONTENT

[0004] The utility model aims at solving the technical problems in the prior art and provides a single-boom portal crane with main and auxiliary lifting mechanisms.

[0005] The utility model is implemented through the following technical solutions:

[0006] That is, a single-boom portal crane with main and auxiliary lifting mechanisms, which comprises a portal frame, a cylinder and a support frame for supporting the cylinder installed on the portal frame, a machine room, an A-frame and an arm frame arranged at the top end of the cylinder, a main lifting mechanism, an auxiliary lifting mechanism and a luffing mechanism arranged in the machine room, a pulley block installed at the top end of the A-frame, and a main hook, an auxiliary hook and a lock hook installed at the top end of the arm frame.

[0007] The wire rope of the main hoisting mechanism passes through the pulley system and is connected to the main hook; the wire rope of the auxiliary hoisting mechanism passes through the pulley system and is connected to the auxiliary hook; and the wire rope of the luffing mechanism passes through the pulley system and is connected to the top of the boom.

[0008] The main hook has a maximum lifting capacity of 1100T, the auxiliary hook has a maximum lifting capacity of 200T, and the locking hook has a lifting capacity of 15T. It has a wide range of lifting capacities and a large range of lifting heights, which can meet the hoisting conditions of large steel structures with different weights of 1100T and below. The appropriate lifting tools can be selected according to the weight of the lifting, which improves work efficiency and reduces costs.

[0009] Further optimization involves providing a lower ladder on one side of the gantry to facilitate workers climbing to the platform at the top of the gantry.

[0010] Further optimization involves installing a lower guardrail on the gantry to improve the safety of workers on the platform at the top of the gantry.

[0011] Further optimization involves installing upper guardrails on the computer room to improve the safety of staff on the top platform of the computer room.

[0012] Further optimization involves installing an upper ladder in the computer room to facilitate staff climbing up to the pulley system for maintenance.

[0013] Further optimization resulted in a spiral-shaped ladder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The main hook has a maximum lifting capacity of 1100T, the auxiliary hook has a maximum lifting capacity of 200T, and the locking hook has a lifting capacity of 15T. It has a wide range of lifting capacities and a large range of lifting heights, which can meet the hoisting conditions of large steel structures with different weights of 1100T and below. The appropriate lifting tools can be selected according to the weight of the lifting, which improves work efficiency and reduces costs. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0018] In the diagram: 1. Gantry; 2. Cylinder; 3. Machine room; 4. Main hoisting mechanism; 5. Auxiliary hoisting mechanism; 6. Luffing mechanism; 7. A-frame; 8. Boom; 9. Main hook; 10. Auxiliary hook; 11. Locking hook; 12. Wire rope; 13. Lower ladder; 14. Lower guardrail; 15. Upper ladder; 16. Upper guardrail; 17. Pulley system; 18. Support frame. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 The single-arm gantry crane with main and auxiliary hoisting mechanisms shown includes a gantry 1, a cylinder 2 mounted on the gantry 1 and a support frame 18 for supporting the cylinder 2. The top of the cylinder 2 is provided with a machine room 3, an A-frame 7 and a boom 8. The machine room 3 is provided with a main hoisting mechanism 4, an auxiliary hoisting mechanism 5 and a luffing mechanism 6. The top of the A-frame 7 is provided with a pulley system 17. The top of the boom 8 is provided with a main hook 9, an auxiliary hook 10 and a locking hook 11.

[0021] The wire rope 12 of the main hoisting mechanism 4 passes around the pulley block 17 and is connected to the main hook 9. The wire rope 12 of the auxiliary hoisting mechanism 5 passes around the pulley block 17 and is connected to the auxiliary hook 10. The wire rope 12 of the luffing mechanism 6 passes around the pulley block 17 and is connected to the top of the boom 8.

[0022] The main hook 9 has a maximum lifting capacity of 1100T, the auxiliary hook 10 has a maximum lifting capacity of 200T, and the locking hook 11 has a lifting capacity of 15T. It has a wide range of lifting capacities and a large range of lifting heights, which can meet the hoisting conditions of large steel structures of various weights with a lifting capacity of 1100T and below. The appropriate lifting tools can be selected according to the weight of the lifting, which improves work efficiency and reduces costs.

[0023] The gantry 1 is equipped with a lower ladder 13 on one side to facilitate workers to climb to the platform at the top of the gantry 1. The gantry 1 is also equipped with a lower guardrail 14 to improve the safety of workers on the platform at the top of the gantry 1.

[0024] Among them, the computer room 3 is equipped with an upper guardrail 16 to improve the safety of staff on the top platform of the computer room 3.

[0025] Among them, the computer room 3 is equipped with a spiral ladder 15, which makes it convenient for staff to climb up the pulley row 17 for maintenance.

[0026] Working principle:

[0027] The main hook 9 has a maximum lifting capacity of 1100T, the auxiliary hook 10 has a maximum lifting capacity of 200T, and the locking hook 11 has a lifting capacity of 15T. It has a wide range of lifting capacities and a large range of lifting heights, which can meet the hoisting conditions of large steel structures of various weights with a lifting capacity of 1100T and below. The appropriate lifting tools can be selected according to the weight of the lifting, which improves work efficiency and reduces costs.

[0028] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0029] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this utility model, are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-arm gantry crane equipped with main and auxiliary hoisting mechanisms, characterized in that, Includes a gantry (1), on which a cylinder (2) is installed and a support frame (18) for supporting the cylinder (2). The top of the cylinder (2) is equipped with a machine room (3), an A-frame (7) and a boom (8). The machine room (3) is equipped with a main hoisting mechanism (4), an auxiliary hoisting mechanism (5) and a luffing mechanism (6). The top of the A-frame (7) is equipped with a pulley system (17), and the top of the boom (8) is equipped with a main hook (9), an auxiliary hook (10) and a locking hook (11). The wire rope (12) of the main hoisting mechanism (4) passes through the pulley block (17) and is connected to the main hook (9). The wire rope (12) of the auxiliary hoisting mechanism (5) passes through the pulley block (17) and is connected to the auxiliary hook (10). The wire rope (12) of the luffing mechanism (6) passes through the pulley block (17) and is connected to the top of the boom (8).

2. A single-arm gantry crane with main and auxiliary hoisting mechanisms according to claim 1, characterized in that, A ladder (13) is provided on one side of the gantry (1).

3. A single-arm gantry crane with main and auxiliary hoisting mechanisms according to claim 1, characterized in that, The gantry (1) is equipped with a lower guardrail (14).

4. A single-arm gantry crane with main and auxiliary hoisting mechanisms according to claim 1, characterized in that, The computer room (3) is equipped with an upper guardrail (16).

5. A single-arm gantry crane with main and auxiliary hoisting mechanisms according to claim 1, characterized in that, The computer room (3) is equipped with an upper ladder (15).

6. A single-arm gantry crane with main and auxiliary hoisting mechanisms according to claim 5, characterized in that, The ladder (15) is spiral-shaped.

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