Top hanging type travelling crane double-roller lifting device

Abstract

The utility model discloses a top hanging type travelling crane double-roller lifting device which comprises a rack body, a lifting structure and a hanger structure. The lifting structure is used for driving the lifting appliance structure to move upwards / downwards; the lifting structure comprises a driving assembly and at least two sets of rollers, each set of rollers is sleeved with at least four sets of rope guides, the four sets of rope guides are connected through connecting rods, a pulley block is arranged between every two sets of rope guides, one end of a rope is fixed to the rollers, and after the other end of the rope is wound around the rollers, the pulley block is fixed to the rollers. And the rope guide bypasses the pulley block and then returns to the roller through the other group of rope guides. Before the rope is wound around the pulley block, the rope is wound around the roller, so that the rope moves in the groove of the roller, the stability is enhanced, the bearing force is equally distributed on the roller, and the reliability of the structure is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy vehicles, and specifically relates to a top-hanging crane double-drum lifting device. Background Art

[0002] New energy vehicles (NEVs) use unconventional fuels as their power source (or use conventional fuels but employ new onboard power units), integrating advanced technologies in vehicle power control and drive to create vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include hybrid vehicles, pure electric vehicles, fuel cell vehicles, hydrogen engine vehicles, gas vehicles, and alcohol-ether vehicles.

[0003] Commercial vehicle roof-mounted battery-swapping robots require lifting functions when taking and placing battery packs. Their high lifting frequency, heavy load-bearing capacity, and high start-stop precision pose huge challenges to structural design. Traditional pulley lifting designs have sufficient load-bearing capacity but are prone to instability when started and stopped frequently. Utility Model Content

[0004] In order to solve the above technical problems, a technical solution adopted by the present utility model is as follows:

[0005] A top-hanging crane double-drum lifting device comprises a frame body, a lifting structure and a sling structure; the lifting structure is used to drive the sling structure to move upward / downward;

[0006] The lifting structure includes a drive assembly and at least two groups of rollers, each group of rollers is covered with at least four groups of rope guides, and the four groups of rope guides are connected to each other by connecting rods. A pulley group is provided between each two groups of rope guides. One end of the rope is fixed to the roller, and the other end is wrapped around the roller, passes through the rope guide, bypasses the pulley group, and then returns to the roller through another group of rope guides.

[0007] The drum surface is provided with a spiral groove, the rope is wound in the spiral groove, the rope guide is provided with screw teeth, the screw teeth match the spiral groove, and the rope guide is also provided with a wire hole, and the rope passes through the wire hole.

[0008] Furthermore, the sling structure includes a lifting seat plate and a clamping claw installed on the lifting seat plate, and the clamping claw is used to clamp the battery pack.

[0009] Furthermore, the lifting structure further includes a tensioning assembly;

[0010] The tensioning assembly includes a guide column and an elastic element, the elastic element is sleeved on the guide column, and the guide column is fixed on the sling structure. When the pulley block is hoisted, the tensioning assembly can maintain the rope between the pulley blocks.

[0011] Furthermore, the driving assembly is a motor, which is connected to the two sets of rollers through a gear box, driving the rollers to rotate forward or reverse simultaneously.

[0012] Furthermore, the hoisting seat plate is also equipped with a positioning component, which is a plurality of positioning columns, and the positioning columns are inserted into the frame body for positioning.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model winds the rope around the drum before it goes around the pulley block, so that the rope moves in the groove of the drum, thereby enhancing stability, evenly distributing the supporting force on the drum, and enhancing the reliability of the structure.

[0015] 2. The utility model adds a tensioning component to the pulley block, so that the rope is continuously tensioned on the pulley block during the winding process, avoiding rope entanglement and improving safety.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the lifting structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the roller of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the rope guide and the drum of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of part A;

[0022] Figure 6 This is a schematic diagram of the rope guide of the utility model;

[0023] Description of reference numerals:

[0024] 1. Frame body; 2. Lifting structure; 21. Drive assembly; 22. Roller; 221. Spiral groove; 23. Rope guide; 231. Screw thread; 24. Connecting rod; 25. Pulley block; 26. Tensioning assembly; 261. Guide column; 262. Elastic element; 3. Hoisting fixture structure; 31. Hoisting seat plate; 32. Clamp; 33. Positioning assembly. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention. Specific embodiment:

[0027] like Figures 1 to 6 The top-mounted double-drum lifting device shown in the figure includes a frame body 1, a lifting structure 2, and a sling structure 3; the lifting structure 2 is used to drive the sling structure 3 to move upward / downward; specifically, the lifting structure 2 also includes a tensioning assembly 26;

[0028] The tensioning assembly 26 includes a guide column 261 and an elastic element 262 . The elastic element 262 is sleeved on the guide column 261 . The guide column 261 is fixed on the sling structure 3 . When the pulley block 25 is hoisted, the tensioning assembly 26 can maintain the rope between the pulley blocks 25 .

[0029] The lifting structure 2 includes a driving component 21 and at least two groups of rollers 22, each group of the rollers 22 is provided with at least four groups of rope guides 23, the four groups of rope guides 23 are interconnected by connecting rods 24, and a pulley group 25 is provided in the middle position of each two groups of rope guides 23. One end of the rope is fixed on the roller 22, and the other end is wrapped around the roller 22, passes through the rope guide 23, bypasses the pulley group 25, and then returns to the roller 22 through another group of rope guides 23; specifically, the driving component 21 is a motor, and the motor is connected to the two groups of rollers 22 through a gear box, driving the rollers to rotate forward or reverse at the same time.

[0030] The surface of the drum 22 is provided with a spiral groove 221, and the rope is wound in the spiral groove 221. The rope guide 23 is provided with a screw thread 231, and the screw thread 231 matches the spiral groove 221. The rope guide 23 is also provided with a wire hole 232, and the rope passes through the wire hole 232.

[0031] Specifically, the sling structure 3 includes a lifting base plate 31 and a clamping claw 32 mounted on the lifting base plate 31. The clamping claw 32 is used to clamp the battery pack. Specifically, the lifting base plate 31 is also equipped with a positioning assembly 33, which is a plurality of positioning posts that are inserted into the rack body 1 for positioning.

[0032] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A top-mounted crane double-drum lifting device, characterized in that : It comprises a frame body (1), a lifting structure (2) and a sling structure (3); the lifting structure (2) is used to drive the sling structure (3) to move upward / downward; The lifting structure (2) includes a driving assembly (21) and at least two groups of rollers (22), each group of the rollers (22) is provided with at least four groups of rope guides (23), the four groups of rope guides (23) are connected to each other through a connecting rod (24), a pulley group (25) is provided between each two groups of rope guides (23), one end of the rope is fixed on the roller (22), and the other end is wound around the roller (22), passes through the rope guide (23), bypasses the pulley group (25), and then returns to the roller (22) through another group of rope guides (23); A spiral groove (221) is provided on the surface of the drum (22), the rope is wound in the spiral groove (221), a screw thread (231) is provided in the rope guide (23), the screw thread (231) matches the spiral groove (221), and the rope guide (23) is further provided with a wire hole (232), and the rope passes through the wire hole (232).

2. The top-mounted crane double-drum lifting device according to claim 1, characterized in that: The sling structure (3) comprises a sling seat plate (31) and a clamping claw (32) mounted on the sling seat plate (31), wherein the clamping claw (32) is used for clamping a battery pack.

3. The top-mounted crane double-drum lifting device according to claim 1, characterized in that: The lifting structure (2) further includes a tensioning assembly (26); The tensioning assembly (26) includes a guide column (261) and an elastic element (262), wherein the elastic element (262) is sleeved on the guide column (261), and the guide column (261) is fixed on the sling structure (3). When the pulley block (25) is hoisted, the tensioning assembly (26) can continuously tighten the rope between the pulley blocks (25).

4. The top-mounted crane double-drum lifting device according to claim 1, characterized in that: The driving assembly (21) is a motor, which is connected to two sets of rollers (22) via a gear box, and drives the rollers to rotate forward or reverse simultaneously.

5. The top-mounted crane double-drum lifting device according to claim 2, characterized in that: The hoisting seat plate (31) is also provided with a positioning assembly (33), wherein the positioning assembly (33) is a plurality of positioning columns, and the positioning columns are inserted into the frame body (1) for positioning.

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