Double-hoist crane

Abstract

The utility model discloses a double-hoist crane which comprises a fixing frame, two supporting frames are fixed at the bottom of the fixing frame, two electric hoists are arranged above the fixing frame, a steel rod is fixed in the fixing frame, two fixing plates are arranged on the outer sides of lifting ropes of the electric hoists, and the steel rod is fixed on the fixing frame. Four rolling wheels are rotationally connected between the two fixing plates, and a fixing frame is fixed to the tops of the fixing plates. According to the double-hoist crane, the steel rod limits the movement of the moving ring and the limiting rope below, the limiting rope limits the movement of the connecting block, the fixing frame, the fixing plate and the connecting plate, and the connecting plate limits the movement of the electric hoist hook, so that when the electric hoist hook lifts an object, the shaking of the electric hoist hook and the object can be reduced, and the stable movement of the object is ensured; and the safety when the double hoists hoist heavy objects is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a double hoist crane. Background Technology

[0002] A double-hoist crane is a lifting device that uses two electric hoists to work together, and is mainly used for lifting long or heavy goods.

[0003] In current technology, when the movement adjustment position of a double-hoist crane is paused, the device driving the electric hoist will pause briefly, and the electric hoist will suddenly lose its restraint and produce unstable shaking. Furthermore, when lifting and moving heavy objects, the load will sway on the hook during the movement process. This shaking will cause uneven stress on the slings, increasing the probability of the hook coming off or the lifting device breaking. In severe cases, it may cause the cargo to fall. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-hoist crane, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a double hoist crane, including a fixed frame, two support frames fixed at the bottom of the fixed frame, two electric hoists provided above the fixed frame, a steel rod fixed inside the fixed frame, two fixed plates provided on the outside of the hoist ropes, four rollers rotatably connected between the two fixed plates, and a fixed frame fixed at the top of the fixed plates.

[0006] A connecting block is fixed to the top of the fixed frame. Two movable rings are slidably connected to the outer side wall of the steel rod. A limit rope is fixed between the two movable rings below. The limit rope passes through the connecting block. A connecting plate is fixed to the bottom of the fixed plate. The bottom of the connecting plate is fixedly connected to the hook of the electric hoist.

[0007] Preferably, the connecting block has a movable groove inside, the movable groove has a moving block inside, and the bottom of the moving block has a plurality of spikes fixed thereon.

[0008] Preferably, a connecting rod is fixed to the top of the movable block, and a cylinder is fixed to the top of the connecting rod.

[0009] Preferably, the connecting block has openings on both the left and right sides, and a connecting rope is fixed between the two upper movable rings, with the connecting rope passing through the cylinder and the openings.

[0010] Preferably, the movable ring described above has multiple magnetic blocks fixed inside, and the magnetic blocks are attracted to the steel rod.

[0011] Preferably, the top of the fixed frame is equipped with two electric rails on the left and right, and the top of the electric rails is equipped with an mounting plate. The mounting plate is fixedly connected to the electric hoist, and the hook of the electric hoist passes through the mounting plate. Beneficial effects

[0012] This utility model provides a double-hoist crane. Compared with the prior art, it has the following advantages:

[0013] This double-hoist crane, by setting up a steel rod, a fixed plate, rollers, a moving ring, a connecting block, and a limiting rope, restricts the movement of the lower moving ring and the limiting rope. The limiting rope restricts the movement of the connecting block, the fixed frame, the fixed plate, and the connecting plate. The connecting plate restricts the movement of the electric hoist hook. In this way, when the electric hoist hook lifts an object, it can reduce the swaying of the electric hoist hook and the object, ensure the stable movement of the object, and improve the safety of lifting heavy objects with a double hoist. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the steel rod, moving ring, fixing plate, and connecting block in this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting block in this utility model.

[0017] In the diagram: 1. Support frame; 2. Movable groove; 3. Steel rod; 4. Fixed frame; 5. Mounting plate; 6. Electric hoist; 7. Cylinder; 8. Electric track; 9. Magnetic block; 10. Moving ring; 11. Roller; 12. Fixed plate; 13. Connecting plate; 14. Connecting rod; 15. Limiting rope; 16. Fixed frame; 17. Connecting rope; 18. Through hole; 19. Connecting block; 20. Spike; 21. Moving block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 3This utility model provides a technical solution: a double-hoist crane, including a fixed frame 4, two support frames 1 fixed at the bottom of the fixed frame 4, two electric hoists 6 above the fixed frame 4, a steel rod 3 fixed inside the fixed frame 4, two fixed plates 12 on the outside of the hoisting rope of the electric hoist 6, four rollers 11 rotatably connected between the two fixed plates 12, a fixed frame 16 fixed at the top of the fixed plate 12, a connecting block 19 fixed at the top of the fixed frame 16, two movable rings 10 slidably connected to the outer wall of the steel rod 3, a limiting rope 15 fixed between the two lower movable rings 10, the limiting rope 15 passing through the connecting block 19, a connecting plate 13 fixed at the bottom of the fixed plate 12, the bottom of the connecting plate 13 fixedly connected to the hook of the electric hoist 6, thus limiting the hook of the electric hoist 6 to prevent the hook and the object from swaying when lifting, improving safety.

[0020] Furthermore, the connecting block 19 has an internal movable groove 2, inside which is a movable block 21. Multiple spikes 20 are fixed to the bottom of the movable block 21, and a connecting rod 14 is fixed to the top of the movable block 21. A cylinder 7 is fixed to the top of the connecting rod 14. Through holes 18 are opened on both the left and right sides of the connecting block 19. A connecting rope 17 is fixed between the two upper movable rings 10. The connecting rope 17 passes through the cylinder 7 and the through hole 18. Multiple magnetic blocks 9 are fixed inside the upper movable rings 10. The magnetic blocks 9 and the steel rod 3 are attracted to each other. In this way, the connecting block 19 and the limiting rope 15 are fixed, which further improves the stability.

[0021] Furthermore, two electric track bars 8 are installed on the top of the fixed frame 4, and an installation plate 5 is installed on the top of the electric track bars 8. The installation plate 5 is fixedly connected to the electric hoist 6, and the hook of the electric hoist 6 passes through the installation plate 5, which makes it convenient to adjust the position of the electric hoist 6.

[0022] During operation, the electric hoist 6 is activated, causing the hook to descend. The hook, along with the connecting plate 13, fixing plate 12, fixing frame 16, and connecting block 19, descends. The magnetic block 9 and steel rod 3 attract each other, restricting the movement of the upper moving ring 10 and connecting rope 17. The connecting rope 17 restricts the movement of the cylinder 7, connecting rod 14, and moving block 21. The spike 20 moves out of the limiting rope 15. Then, the connecting rope 17 contacts the upper part of the through hole 18. The connecting block 19, along with the connecting rope 17 and the upper moving ring 10, moves downwards. Simultaneously, the connecting block 19 moves the limiting rope 15 and the lower moving ring 10. After the hook of the electric hoist 6 has descended completely, the electric track 8 is activated to adjust the horizontal position of the electric hoist 6, hooking the object. When the electric hoist 6 is activated, the hook rises, and the magnetic block 9 and the steel rod 3 attract each other, further restricting the movement of the upper moving ring 10 and the connecting rope 17. The connecting rope 17 restricts the movement of the cylinder 7, the connecting rod 14, and the moving block 21. The spike 20 is inserted into the limiting rope 15, restricting the left and right movement of the connecting block 19. At the same time, the steel rod 3 restricts the movement of the lower moving ring 10 and the limiting rope 15. The limiting rope 15 restricts the movement of the connecting block 19, the fixing frame 16, the fixing plate 12, and the connecting plate 13. The connecting plate 13 restricts the movement of the hook of the electric hoist 6. In this way, when the hook of the electric hoist 6 is raised with the item, the swaying of the hook and the item can be reduced, ensuring the stable movement of the item and improving the safety of lifting heavy objects with double hoists.

[0023] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-hoist crane, comprising a fixed frame (4), characterized in that: The bottom of the fixed frame (4) is fixed with two support frames (1), and two electric hoists (6) are provided above the fixed frame (4). A steel rod (3) is fixed inside the fixed frame (4). Two fixed plates (12) are provided on the outside of the hoisting rope of the electric hoist (6). Four rollers (11) are rotatably connected between the two fixed plates (12). A fixed frame (16) is fixed on the top of the fixed plate (12). The top of the fixed frame (16) is fixed with a connecting block (19), and two movable rings (10) are slidably connected to the outer wall of the steel rod (3). A limit rope (15) is fixed between the two movable rings (10) below. The limit rope (15) passes through the connecting block (19). A connecting plate (13) is fixed to the bottom of the fixed plate (12). The bottom of the connecting plate (13) is fixedly connected to the hook of the electric hoist (6).

2. A double-hoist crane according to claim 1, characterized in that: The connecting block (19) has an open movable groove (2) inside, and a movable block (21) is provided inside the movable groove (2). Multiple spikes (20) are fixed at the bottom of the movable block (21).

3. A double-hoist crane according to claim 2, characterized in that: A connecting rod (14) is fixed to the top of the movable block (21), and a cylinder (7) is fixed to the top of the connecting rod (14).

4. A double-hoist crane according to claim 3, characterized in that: The connecting block (19) has openings (18) on both the left and right sides, and a connecting rope (17) is fixed between the two moving rings (10) above. The connecting rope (17) passes through the cylinder (7) and the opening (18).

5. A double-hoist crane according to claim 1, characterized in that: Multiple magnetic blocks (9) are fixed inside the moving ring (10) mentioned above, and the magnetic blocks (9) and the steel rod (3) are attracted to each other.

6. A double-hoist crane according to claim 1, characterized in that: The top of the fixed frame (4) is equipped with two electric rails (8) on the left and right, and the top of the electric rails (8) is equipped with an mounting plate (5). The mounting plate (5) is fixedly connected to the electric hoist (6), and the hook of the electric hoist (6) passes through the mounting plate (5).

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