Lifting device

Abstract

The utility model provides a lifting device, and particularly relates to the field of hoisting equipment. The lifting device comprises a first driving device, a second driving device, a first rope, a second rope and a pulley mechanism; a first winding drum is fixedly arranged at the output end of the first driving device; a second winding drum is fixedly arranged at the output end of the second driving device; one end of the first rope is fixedly connected with the first reel, and the other end is fixedly connected with the second reel; one end of the second rope is fixedly connected with the first reel, and the other end is fixedly connected with the second reel; the pulley mechanism is arranged between the first winding drum and the second winding drum and located below the first winding drum and the second winding drum, and the first rope and the second rope are both in sliding connection with the pulley mechanism. The lifting device comprises the two sets of independent driving devices and the two ropes, when one rope is broken or one set of driving device breaks down, it can be guaranteed that the ongoing working cycle continues to be completed, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, and particularly relates to a hoisting device. Background Art

[0002] Lifting equipment is an indispensable equipment in daily industrial production. The hoisting mechanism is the core component of the lifting equipment and is responsible for realizing the vertical lifting function of heavy objects. With the increasing requirements for work safety by the state, higher requirements are also put forward for the safety of the hoisting mechanism, especially in some special industrial fields. When the hoisting mechanism works, the steel wire rope is wound around the drum of the driving device and directly bears the weight of the heavy object on the hook or lifting appliance. If the driving device fails or the steel wire rope breaks, it may cause the heavy object to tilt or fall, further leading to safety accidents. Content of the Utility Model

[0003] In view of the above disadvantages of the prior art, the utility model provides a hoisting device to reduce the potential safety hazards during the operation of the lifting equipment.

[0004] To achieve the above and other related purposes, the utility model provides a hoisting device, which comprises a first driving device, a second driving device, a first rope, a second rope and a pulley mechanism. A first drum is fixedly arranged at the output end of the first driving device, and the first drum rotates synchronously with the output end of the first driving device; a second drum is fixedly arranged at the output end of the second driving device, and the second drum rotates synchronously with the output end of the second driving device; one end of the first rope is fixedly connected with the first drum, and the other end is fixedly connected with the second drum; one end of the second rope is fixedly connected with the first drum, and the other end is fixedly connected with the second drum; the pulley mechanism is arranged between the first drum and the second drum and is located below the first drum and the second drum, and both the first rope and the second rope are slidably connected with the pulley mechanism.

[0005] In an example of the utility model, the pulley mechanism comprises a first pulley part, a second pulley part and a fixing part. The first pulley part and the second pulley part are cross-fixed through the fixing part. The first rope is slidably connected with the first pulley part, and the second rope is slidably connected with the second pulley part.

[0006] In an example of the present utility model, both the first pulley portion and the second pulley portion include two pulleys arranged side by side. The pulley shafts in the first pulley portion are parallel to each other, the pulley shafts in the second pulley portion are parallel to each other, and the pulley shafts in the first pulley portion are perpendicularly arranged to the pulley shafts in the second pulley portion. The first rope is slidably connected to the two pulleys of the first pulley portion in sequence, and the second rope is slidably connected to the two pulleys of the second pulley portion in sequence.

[0007] In an example of the present utility model, the fixing portion includes a plurality of fixing plates and a plurality of connecting plates. The fixing plates are arranged on both sides of the pulley. The fastener sequentially passes through the fixing plate on one side, the pulley, and the fixing plate on the other side, and the pulley rotates around the fastener. The adjacent fixing plates are fixedly connected by the connecting plates.

[0008] In an example of the present utility model, the fixing portion further includes a top plate. The top plate is arranged on the top of the plurality of fixing plates and the plurality of connecting plates, and the top plate is fixedly connected to the plurality of fixing plates and the plurality of connecting plates.

[0009] In an example of the present utility model, a reinforcing plate is further arranged at the bottom of the fixing plate, and both ends of the reinforcing plate are fixedly connected to the bottom of the adjacent fixing plates respectively.

[0010] In an example of the present utility model, the fixing plate and the adjacent connecting plate are integrally formed.

[0011] In an example of the present utility model, support plates are fixedly arranged on two opposite connecting plates. One end of the support plate is fixedly connected to the connecting plate, and the other end of the support plate extends in a direction away from the connecting plate. A cross beam is arranged between the two support plates. Both ends of the cross beam are fixedly connected to the corresponding support plates respectively, and a hook for hanging a load is arranged on the cross beam.

[0012] In an example of the present utility model, the cross beam is rotatably connected to the hook.

[0013] The hoisting device provided by the present utility model has a first drum fixedly arranged at the output end of a first driving device, and a second drum fixedly arranged at the output end of a second driving device. The first drum rotates synchronously with the output end of the first driving device, and the second drum rotates synchronously with the output end of the first driving device. One end of a first rope is fixedly connected to a first sleeve, and the other end is fixedly connected to a second sleeve. One end of a second rope is fixedly connected to the first sleeve, and the other end is fixedly connected to the second sleeve. Both the first rope and the second rope are slidably connected to a pulley mechanism. The hoisting device of the present application includes two sets of independent driving devices, and another set of driving devices can be started to operate when one set of driving devices fails, so as to continue to complete the ongoing work cycle. In addition, the hoisting device is configured with two ropes. When one of the ropes breaks, the other rope can still keep the load lifted or lowered smoothly, prevent the load from falling, and avoid safety accidents. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 Structural schematic diagram of the hoisting device of the present utility model in an embodiment;

[0016] Figure 2 Exploded structural schematic diagram of the hoisting device of the present utility model in another embodiment;

[0017] Figure 3 Cooperating schematic diagram of the first rope and the second rope with the pulley mechanism in an embodiment of the hoisting device of the present utility model.

[0018] Element Number Description

[0019] 100, first rope; 200, second rope; 300, pulley mechanism; 310, first pulley part; 311, first pulley; 312, second pulley; 320, second pulley part; 321, third pulley; 322, fourth pulley; 330, fixing part; 331, fixing plate; 332, connecting plate; 333, top plate; 334, reinforcing plate; 400, first drum; 500, second drum; 600, support plate; 700, cross beam; 800, hook. Detailed Embodiment

[0020] The following specific examples illustrate the implementation modes of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present utility model are for the purpose of describing specific specific implementation schemes, rather than limiting the protection scope of the present utility model. The test methods without specific conditions noted in the following embodiments are usually in accordance with conventional conditions or in accordance with the conditions recommended by each manufacturer.

[0021] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear description, rather than to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in technical content, should also be regarded as the scope of implementation of the present utility model.

[0022] Please refer to Figure 1, the present utility model provides a hoisting device, which includes a first driving device (not shown in the figure), a second driving device (not shown in the figure), a first rope 100, a second rope 200 and a pulley mechanism 300. The output end of the first driving device is provided with a first drum 400, and the output end of the second driving device is provided with a second drum 500. The first drum 400 is fixedly connected to the output end of the first driving device and rotates synchronously with the output end of the first driving device. The second drum 500 is fixedly connected to the output end of the second driving device and rotates synchronously with the output end of the second driving device. One end of the first rope 100 is fixedly connected to the first drum 400, and the other end of the first rope 100 is fixedly connected to the second drum 500; one end of the second rope 200 is fixedly connected to the first drum 400, and the other end of the first rope 100 is fixedly connected to the second drum 500; both the first rope 100 and the second rope 200 are slidably connected to the pulley mechanism 300. The hoisting device of the present application includes two sets of independent driving devices. Under normal working conditions, one set of driving devices works as a moving point to drive the pulley mechanism 300 to hoist, and the other set of driving devices is turned off as a fixed point of the rope. When the working driving device fails and cannot operate, the other set of driving devices is turned on to operate, and the failed driving device is switched to a fixed point of the rope. The other set of driving devices continues to drive the rope to wind on the drum to continue to complete the ongoing work cycle. In addition, the hoisting device is configured with two ropes. When one of the ropes breaks, the other rope can still keep the load lifted or lowered smoothly to prevent the load from falling. It should be noted that the first driving device and the second driving device in the present application are both conventional devices in the hoisting field and have the function of preventing reverse rotation, which will not be elaborated here.

[0023] Please refer to Figure 1 and Figure 2 , in an embodiment, the first driving device and the second driving device have the same load-bearing capacity. The pulley mechanism 300 is arranged between the first drum 400 and the second drum 500 and is located below the first drum 400 and the second drum 500. In this embodiment, the pulley mechanism 300 includes a first pulley part 310 and a second pulley part 320. The first rope 100 is slidably connected to the first pulley part 310, and the second rope 200 is slidably connected to the second pulley part 320. The first pulley part 310 and the second pulley part 320 are cross-fixed through a fixing part 330 to ensure that the load on the pulley mechanism 300 does not have a phenomenon of center of gravity imbalance during the hoisting process for each rope during use.

[0024] Please refer to Figures 1 to 3, in one embodiment, both the first pulley portion 310 and the second pulley portion 320 include two pulleys arranged side by side. The pulley shafts in the first pulley portion 310 are parallel to each other, the pulley shafts in the second pulley portion 320 are parallel to each other, and the pulley shafts in the first pulley portion 310 are perpendicular to the pulley shafts in the second pulley portion 320. The two pulleys in the first pulley portion 310 are respectively denoted as the first pulley 311 and the second pulley 312, the two pulleys in the second pulley portion 320 are respectively denoted as the third pulley 321 and the fourth pulley 322. The first pulley 311 and the second pulley 312 are located between the third pulley 321 and the fourth pulley 322, and the third pulley 321 and the fourth pulley 322 are located between the first pulley 311 and the second pulley 312, that is, the connection line between the first pulley 311 and the second pulley 312 intersects and is perpendicular to the connection line between the third pulley 321 and the fourth pulley 322. One end of the first rope 100 is fixedly connected to the first reel 400, and the other end of the first rope 100 is slidably connected to the first pulley 311 and the second pulley 312 in sequence and then fixedly connected to the second reel 500; one end of the second rope 200 is fixedly connected to the first reel 400, and the other end of the second rope 200 is slidably connected to the third pulley 321 and the fourth pulley 322 in sequence and then fixedly connected to the second reel 500. The number of pulleys in the first pulley portion 310 and the second pulley portion 320 is adaptively adjusted according to the usage requirements. For example, in other embodiments, in order to meet greater lifting requirements, the first pulley portion 310 and the second pulley portion 320 of the hoisting device may also include three, four or more pulleys.

[0025] Please refer to Figure 1 and Figure 2 , in one embodiment, the fixing portion 330 includes a plurality of fixing plates 331 and a plurality of connecting plates 332. The fixing plates 331 are arranged on both sides of the pulley. The fasteners sequentially pass through the fixing plate 331 on one side, the pulley and the fixing plate 331 on the other side to fixedly connect the fixing plates 331 on both sides of the pulley. The pulley rotates around the fasteners, and the adjacent fixing plates 331 are fixedly connected by the connecting plates 332 to fixedly connect the first pulley portion 310 and the second pulley portion 320. The fixing plate 331 and the adjacent connecting plate 332 can be either a split structure or integrally formed. In this embodiment, the fixing plate 331 and the adjacent connecting plate 332 are integrally formed.

[0026] Furthermore, in order to enhance the stability of the pulley mechanism 300, the fixing portion 330 further includes a top plate 333. The top plate 333 is arranged on the top of the plurality of fixing plates 331 and the plurality of connecting plates 332, and the top plate 333 is fixedly connected to the plurality of fixing plates 331 and the plurality of connecting plates 332. Even further, a reinforcing plate 334 is further arranged at the bottom of the fixing plate 331, and both ends of the reinforcing plate 334 are fixedly connected to the bottom of the adjacent fixing plates 331.

[0027] Please refer toFigure 1 and Figure 2 In one embodiment, support plates 600 are fixedly arranged on two opposite connecting plates 332. One end of each support plate 600 is fixedly connected to the connecting plate 332, and the other end of each support plate 600 extends away from the connecting plate 332. A cross beam 700 is arranged between the two support plates 600. Two ends of the cross beam 700 are respectively fixedly connected to the corresponding support plates 600. A hook 800 for hanging a load is arranged on the cross beam 700. The cross beam 700 is rotatably connected to the hook 800 and can remain horizontal when lifting or lowering vertically, facilitating placing the load at a specific position.

[0028] For the lifting device provided by the present utility model, a first drum is fixedly arranged at the output end of the first driving device, and a second drum is fixedly arranged at the output end of the second driving device. The first drum rotates synchronously with the output end of the first driving device, and the second drum rotates synchronously with the output end of the first driving device; one end of a first rope is fixedly connected to a first sleeve, and the other end is fixedly connected to a second sleeve. One end of a second rope is fixedly connected to the first sleeve, and the other end is fixedly connected to the second sleeve. Both the first rope and the second rope are slidably connected to a pulley mechanism. The lifting device of this application includes two sets of independent driving devices, and another set of driving device can be started to operate when one set of driving device fails to continue to complete the ongoing work cycle. In addition, the lifting device is configured with two ropes. When one rope breaks, the other rope can still keep the load lifted or lowered smoothly, preventing the load from falling and avoiding safety accidents. Therefore, the present utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and practical significance.

[0029] The above embodiments merely illustrate the principles and effects of the present utility model, rather than limiting the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A lifting device, characterized in that: include: The first drive device has a first reel fixedly disposed at its output end, and the first reel is connected to the The output end of the first drive device rotates synchronously; A second driving device, an output end of which is fixedly provided with a second reel; the second reel rotates synchronously with the output end of the second driving device; A first rope, one end of which is fixedly connected to the first drum, and the other end of which is fixedly connected to the second drum; A second rope, one end of which is fixedly connected to the first drum, and the other end of which is fixedly connected to the second drum; The pulley mechanism is arranged between the first drum and the second drum and is located below the first drum and the second drum. The first rope and the second rope are both slidably connected to the pulley mechanism.

2. The lifting device according to claim 1, characterized in that: The pulley mechanism includes a first pulley portion, a second pulley portion and a fixing portion, the first pulley portion and the second pulley portion are cross-fixed by the fixing portion, the first rope is slidably connected to the first pulley portion, and the second rope is slidably connected to the second pulley portion.

3. The lifting device according to claim 2, characterized in that: The first pulley part and the second pulley part each include two pulleys arranged side by side, the pulley shafts in the first pulley part are parallel to each other, the pulley shafts in the second pulley part are parallel to each other, and the pulley shafts in the first pulley part and the pulley shafts in the second pulley part are arranged perpendicularly; the first rope is slidably connected to the two pulleys of the first pulley part in sequence, and the second rope is slidably connected to the two pulleys of the second pulley part in sequence.

4. The lifting device according to claim 2, characterized in that: The fixing part includes a plurality of fixing plates and a plurality of connecting plates, wherein the fixing plates are arranged on both sides of the pulley, and the fasteners pass through the fixing plates on one side, the pulley and the fixing plates on the other side in sequence, and the pulley rotates around the fasteners, and the adjacent fixing plates are fixedly connected by the connecting plates.

5. The lifting device according to claim 4, characterized in that: The fixing part further includes a top plate, which is disposed on top of the plurality of fixing plates and the plurality of connecting plates, and the top plate is fixedly connected to the plurality of fixing plates and the plurality of connecting plates.

6. The lifting device according to claim 4, characterized in that: A reinforcing plate is also provided at the bottom of the fixing plate, and two ends of the reinforcing plate are respectively fixedly connected to the bottom of the adjacent fixing plate.

7. The lifting device according to claim 4, characterized in that: The fixing plate and the adjacent connecting plate are formed in one piece.

8. The lifting device according to claim 4, characterized in that: A support plate is fixedly arranged on the two opposite connecting plates, one end of the support plate is fixedly connected to the connecting plate, and the other end of the support plate extends in a direction away from the connecting plate; a cross beam is arranged between the two support plates, the two ends of the cross beam are respectively fixedly connected to the corresponding support plates, and a hook for hanging loads is arranged on the cross beam.

9. The lifting device according to claim 8, characterized in that: The crossbeam is rotatably connected to the hook.

Images