Lifting device and crown block
By introducing limiting components and adjustment assemblies into the lifting device, combined with sensors and drive components, the problem of tangled grooves caused by slack lifting ropes was solved, improving safety and extending the service life of the lifting ropes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 邹平县汇盛新材料科技有限公司
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-10
AI Technical Summary
Existing lifting devices are prone to slack ropes during hoisting, which can cause the wire ropes to become tangled and damaged, and there are also safety hazards during the maintenance process.
Design a lifting device including a support frame, a winding shaft, a lifting rope, an adjustment component, and a limiting component. The limiting component maintains a distance d with the lifting rope, and the position of the limiting component is adjusted by a sensor and a drive component to prevent the lifting rope from slackening further, reduce sliding friction, and use an aluminum layer to reduce damage.
It effectively prevents the lifting rope from getting tangled in the groove, improves the safety performance of the lifting device, reduces rope damage, and lowers maintenance difficulty and safety risks.
Smart Images
Figure CN224105468U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of crown block, in particular to a lifting device and a crown block. BACKGROUND
[0002] In the related technical field, the lifting device lifts out the aluminum hook by the lifting rope, but in the process of lifting out the aluminum hook, the improper operation of the crown block operator can cause the steel wire rope to be loose, resulting in the steel wire rope to be in disorder. CONTENT OF THE UTILITY MODEL
[0003] The lifting device and the crown block provided by the present application can effectively prevent the lifting rope from being in disorder.
[0004] In a first aspect, the present application provides a lifting device, which comprises:
[0005] a support frame;
[0006] a winding shaft rotatably arranged on the support frame;
[0007] a lifting rope wound on the circumferential wall of the winding shaft;
[0008] an adjusting assembly mounted on the support frame;
[0009] a limiting piece connected with the adjusting assembly, the adjusting assembly being capable of driving the limiting piece to move along the radial direction of the winding shaft, so that the limiting piece and the lifting rope always maintain a distance d.
[0010] Based on the lifting device of the present application, the winding shaft rotates relative to the support frame to wind or unwind the lifting rope. In the process of winding or unwinding the lifting rope by the winding shaft, if the lifting rope is loose, the limiting piece limits the loose lifting rope to prevent the lifting rope from being further loose. In addition, when the lifting rope is wound on the winding shaft in two layers, the limiting piece can move along the radial direction of the winding shaft through the adjusting assembly to adjust the distance between the limiting piece and the lifting rope, so that the limiting piece does not affect the lifting rope and still limits the loose lifting rope.
[0011] In some embodiments, the distance d between the limiting piece and the lifting rope is less than or equal to the diameter of the lifting rope and greater than 0.
[0012] Based on the above-mentioned embodiments, the distance d between the limiting piece and the lifting rope is greater than 0, which ensures that the limiting piece and the lifting rope do not interfere with each other to ensure the normal operation of the lifting device. The distance between the limiting piece and the lifting rope is less than the diameter of the lifting rope, so that the lifting rope can limit the loose lifting rope from being further loose.
[0013] In some embodiments, the support frame has two sliding grooves arranged along the radial direction of the winding shaft, and the adjusting assembly comprises:
[0014] A sliding block is arranged in the sliding groove and connected with the sliding wall of the sliding groove, and the sliding block is connected with the limiting piece;
[0015] A sensor is fixed to the support frame and used to detect the distance information between the limiting piece and the lifting rope;
[0016] A driving piece is fixed to the support frame and connected with the sliding block, and the driving piece is electrically connected with the sensor and can drive the sliding block to move along the radial direction of the winding shaft according to the distance information fed back by the sensor.
[0017] According to the above embodiment, the sensor sends a distance signal to the driving piece after detecting that the distance between the limiting piece and the lifting rope wound on the winding shaft changes, and the driving piece drives the sliding block to slide in the sliding groove to adjust the limiting piece.
[0018] In some embodiments, the number of the sliding blocks is two, and the two sliding blocks are arranged opposite to each other along the axial direction of the winding shaft, the limiting piece is a limiting rod arranged along the axial direction of the winding shaft, and the two ends of the limiting rod are respectively connected with the two sliding blocks.
[0019] According to the above embodiment, the limiting piece is configured as a rod-shaped structure and arranged along the axial direction of the winding shaft, so as to limit each layer of the lifting rope wound on the winding shaft, and the two adjusting assemblies respectively realize the sliding connection between the two ends of the limiting piece and the support frame, so that the two ends of the limiting piece can move relative to the support.
[0020] In some embodiments, the sensor is configured as a counter, and is connected with the winding shaft and used to detect the number of rotations of the winding shaft.
[0021] According to the above embodiment, the number of turns of the lifting rope wound on the winding shaft is fixed, and when the counter detects that the winding shaft has rotated the preset number of turns of the lifting rope layer after the lifting rope is wound on the winding shaft, the sensor sends a signal to the driving piece, so that the driving piece drives the sliding block to move relative to the support to adjust the position of the limiting piece.
[0022] In some embodiments, the limiting piece comprises a center shaft and an aluminum layer wrapped around the center shaft.
[0023] According to the above embodiment, when the lifting rope is loosened, the lifting rope will inevitably contact the aluminum layer of the limiting piece. Since aluminum has a soft material, the lifting rope will not be damaged after contacting the aluminum layer.
[0024] In some embodiments, the center shaft is rotationally connected with the sliding block.
[0025] Based on the above embodiment, after the rope is loosened, the limiting piece is in contact with the rope, and the limiting piece will rotate around its own axis to convert the sliding friction between the limiting piece and the rope into rolling friction, so as to reduce the damage to the rope.
[0026] In a second aspect, the embodiment of the present application provides a head sheave, which comprises a beam and the hoisting device as described above, and the hoisting device is in rolling connection with the beam.
[0027] Based on the head sheave of the embodiment of the present application, since the hoisting device is provided, the head sheave has higher safety performance.
[0028] Based on the hoisting device and the head sheave of the embodiment of the present application, the winding shaft rotates relative to the support frame to wind or unwind the rope, and in the process of winding or unwinding the rope by the winding shaft, if the rope is loosened, the limiting piece limits the loosened rope to prevent the rope from being further loosened. In addition, when the rope is wound on the winding shaft for two layers, the limiting piece can move along the radial direction of the winding shaft through the adjusting assembly to adjust the distance between the limiting piece and the rope, so that the limiting piece does not affect the rope and still limits the loosening of the rope. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0030] Figure 1 It is a structural schematic diagram of the hoisting device in an embodiment of the present application.
[0031] Figure 2 It is a structural schematic diagram of the hoisting device in an embodiment of the present application. Figure 1 It is a sectional structural schematic diagram of the hoisting device along A-A.
[0032] Reference signs: 10, support frame; 11, sliding groove; 20, winding shaft; 30, rope; 40, adjusting assembly; 41, sliding block; 43, driving piece; 50, limiting piece; 51, central shaft; 52, aluminum layer; a, radial direction of the winding shaft; b, axial direction of the winding shaft; d, distance between the limiting piece and the rope. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0034] In the related technical field, the aluminum electrolysis multifunctional crane aluminum hook is the main equipment in the aluminum discharge process. During daily work, due to the inattentiveness of the crane operator or the oblique lifting, the hoisting rope is prone to be in disorder on the winding shaft, causing damage to the hoisting rope. Moreover, the maintenance personnel need to move the aluminum discharge hook to adjust the steel wire rope in disorder during maintenance, which has the safety hazard of hand squeezing at the rotating part and is time-consuming and laborious.
[0035] To solve the above technical problems, please refer to Figure 1 and Figure 2 , the first aspect of the present application proposes a lifting device which can effectively prevent the hoisting rope 30 from being in disorder.
[0036] Please refer to Figure 1 and Figure 2 , the lifting device comprises a support frame 10, a winding shaft 20, a hoisting rope 30, an adjusting assembly 40 and a limiting piece 50, the winding shaft 20 is rotationally arranged on the support frame 10; the hoisting rope 30 is wound on the peripheral wall of the winding shaft 20; the adjusting assembly 40 is installed on the support frame 10; the limiting piece 50 is connected with the adjusting assembly 40, and the adjusting assembly 40 can drive the limiting piece 50 to move along the radial direction of the winding shaft 20, so that the limiting piece 50 and the hoisting rope 30 always maintain a distance d.
[0037] The support frame 10 is used to install the winding shaft 20, the adjusting assembly 40 and the limiting piece 50, and the support frame 10 comprises oppositely arranged support portions and a connecting portion located between the two support portions, and the connecting portion is connected with the two support portions. Specifically, the support portion can be configured as a support plate.
[0038] The winding shaft 20 is used to wind the hoisting rope 30. It can be understood that the larger the diameter of the winding shaft 20 is, the longer the length of the hoisting rope 30 wound or unwound by one rotation of the winding shaft 20 is. In some embodiments of the present application, the winding shaft 20 is arranged as a hollow shaft, so that the hollow shaft can wind or unwind the hoisting rope 30 faster and the weight of the lifting device can be reduced. Of course, in order to ensure the structural strength of the winding shaft 20, the winding shaft 20 should have a certain thickness, so that the winding shaft 20 can bear the weight of the hoisted object. In addition, a reinforcing member can be arranged in the hollow winding shaft 20 to enhance the structural strength of the winding shaft 20, for example, a plurality of reinforcing ribs are arranged on the inner wall of the winding shaft 20, or a reinforcing rod is arranged in the winding shaft 20, the reinforcing rod is arranged along the radial direction of the winding shaft 20 and both ends of the reinforcing rod are fixedly connected with the inner wall of the winding shaft 20.
[0039] The hoisting rope 30 is wound on the winding shaft 20, and the lifting hook will be lifted with the winding or unwinding of the hoisting rope 30 by the winding shaft 20. The hoisting rope 30 in the embodiments of the present application is a steel wire rope.
[0040] The hoisting device based on the embodiment of the present application, the winding shaft 20 rotates relative to the support frame 10 to wind or unwind the hoisting rope 30, and during the winding or unwinding of the hoisting rope 30 by the winding shaft 20, if the hoisting rope 30 is loosened, the limiting piece 50 limits the loosened hoisting rope 30, preventing the hoisting rope 30 from being further loosened. In addition, when the hoisting rope 30 is wound on the winding shaft 20 for two layers, the limiting piece 50 can move along the radial direction of the winding shaft 20 through the adjusting assembly 40 to adjust the distance between the limiting piece 50 and the hoisting rope 30, so that the limiting piece 50 does not affect the hoisting rope 30 and still limits the loosening of the hoisting rope 30, thereby improving the safety performance of the hoisting device.
[0041] It can be understood that the hoisting device of the embodiment of the present application further comprises a winding motor and a hook, the body of the winding motor is fixed on the support frame 10, the output shaft of the winding motor is in transmission connection with the winding shaft 20 to drive the winding shaft 20 to rotate around its axis, and the hook is in rolling connection with the hoisting rope 30, that is, the hook comprises a hook body and a roller arranged on the hook body, the hoisting rope 30 is wound around the circumferential side of the roller, and the roller rotates relative to the hoisting rope 30 when the winding shaft 20 winds or unwinds the hoisting rope 30.
[0042] Please refer to Figure 1 and Figure 2 , in some embodiments of the present application, the distance d is less than or equal to the diameter of the hoisting rope 30 and greater than 0, and the distance between the limiting piece 50 and the hoisting rope 30 is less than the diameter of the hoisting rope 30, so that the hoisting rope 30 can limit the hoisting rope 30 from being further loosened when the hoisting rope 30 is loosened, and the distance d between the limiting piece 50 and the hoisting rope 30 is greater than 0, which ensures that the limiting piece 50 and the hoisting rope 30 do not interfere with each other, so as to ensure the normal work of the hoisting device.
[0043] Please refer to Figure 1 and Figure 2 , in some embodiments, the support frame 10 has a sliding groove 11 arranged in the radial direction of the winding shaft 20, the adjusting assembly 40 comprises a sliding block 41, a sensor and a driving piece 43, the sliding block 41 is in the sliding groove 11 and is in sliding connection with the groove wall of the sliding groove 11, and the sliding block 41 is connected with the limiting piece 50; the sensor is fixed on the support frame 10 and is used for detecting the distance information between the limiting piece 50 and the hoisting rope 30; the driving piece 43 is fixed on the support frame 10 and is connected with the sliding block 41, the driving piece 43 is electrically connected with the sensor and can drive the sliding block 41 to move along the radial direction of the winding shaft 20 according to the distance information fed back by the sensor.
[0044] The sliding groove 11 is used for accommodating the sliding block 41, in the embodiment of the present application, the sliding groove 11 penetrates the support frame 10 along the axis of the winding shaft 20, and the sliding groove 11 is configured as a rectangular slot.
[0045] The driving member 43 is configured to drive the sliding block 41 to move along the radial direction of the winding shaft 20. In some embodiments of the present application, the driving member 43 can be a pneumatic cylinder.
[0046] The sliding block 41 is slidingly arranged in the sliding groove 11. It can be understood that the sliding block 41 is adapted to the sliding groove 11. In some embodiments of the present application, the side wall of the sliding groove 11 is recessed to form a limiting groove, and a limiting block is protruded on the sliding block 41 and located in the limiting groove to prevent the sliding block from coming out of the sliding groove.
[0047] The sensor sends a distance signal to the driving member 43 after detecting that the distance between the limiting member 50 and the hoisting rope 30 wound on the winding shaft 20 changes, and the driving member 43 drives the sliding block 41 to slide in the sliding groove 11 to adjust the limiting member 50.
[0048] It can be understood that when the hoisting rope 30 is wound on the winding shaft 20 by one layer, the adjusting assembly 40 can not be arranged, and the limiting member 50 can be fixed on the support frame 10.
[0049] Please refer to Figure 1 and Figure 2 In some embodiments, the number of sliding blocks 41 is two, and the two sliding blocks 41 are arranged opposite to each other along the axial direction of the winding shaft 20. The limiting member 50 is a limiting rod and is arranged along the axial direction of the winding shaft 20, and the two ends of the limiting rod are connected with the two sliding blocks 41, respectively.
[0050] The limiting member 50 is configured as a rod-shaped structure and is arranged along the axial direction of the winding shaft 20, so as to limit each layer of the hoisting rope 30 wound on the winding shaft 20. Correspondingly, the two adjusting assemblies 40 are arranged to realize the sliding connection between the two ends of the limiting member 50 and the support frame 10, so that the two ends of the limiting member 50 can move relative to the support member.
[0051] In some embodiments, the sensor is configured as a counter, and is connected with the winding shaft 20 to detect the number of rotations of the winding shaft 20. That is, the sensor sends a positive signal to the control module every time the winding shaft 20 rotates one layer during the winding of the hoisting rope 30, and sends a negative signal to the control module every time the winding shaft 20 rotates one layer during the unwinding of the hoisting rope 30. When the positive signal reaches a positive preset value, the driving member 43 drives the sliding block 41 to move away from the winding shaft 20 along the radial direction of the winding shaft 20. Similarly, when the negative signal reaches a negative preset value, the driving member 43 drives the sliding block 41 to move towards the winding shaft 20 along the radial direction of the winding shaft 20.
[0052] Please refer to Figure 2As shown, in some embodiments, the limiting member 50 includes a central shaft 51 and an aluminum layer 52 wrapped around the central shaft 51. The aluminum layer 52 is arranged on the periphery of the limiting rod. When the hoisting rope 30 is loosened, the hoisting rope 30 contacts the aluminum layer 52. Since the aluminum layer 52 is softer, the limiting member 50 can prevent damage to the hoisting rope 30. In addition, after the hoisting rope 30 is loosened, the operator fails to find that the hoisting device is abnormal and continues to control the winding shaft 20 to wind or release the hoisting rope 30. At this time, the hoisting rope 30 can damage the aluminum layer 52, so that the winding shaft 20 continues to rotate to prevent greater damage.
[0053] In some embodiments, the central shaft 51 is rotationally connected with the sliding block 41. In this way, after the hoisting rope 30 contacts the limiting member 50, the limiting member 50 can rotate around its own axis to convert the sliding friction between the limiting member 50 and the hoisting rope 30 into rolling friction, so as to reduce damage to the hoisting rope 30.
[0054] In a second aspect, the embodiments of the present application provide a head sheave. The head sheave includes a cross beam and the hoisting device as described above. The support frame 10 of the hoisting device is connected with a trolley of the head sheave.
[0055] Based on the head sheave of the embodiments of the present application, since the hoisting device is provided, the head sheave has higher safety performance.
[0056] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0057] The above is only a preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A hoisting device, characterized in that The utility model relates to a lifting device, comprising: a support frame; a winding shaft rotatably arranged on the support frame; a lifting rope wound around the winding shaft; an adjusting assembly mounted on the support frame; a limiting member connected with the adjusting assembly, the adjusting assembly being capable of moving the limiting member along the radial direction of the winding shaft so that the limiting member and the lifting rope always maintain a distance d.
2. The hoisting device of claim 1, wherein The distance d between the limiting member and the lifting rope is less than or equal to the diameter of the lifting rope and greater than 0.
3. The hoisting device of claim 1, wherein The support frame has a sliding groove arranged along the radial direction of the winding shaft, and the adjusting assembly comprises: a sliding block corresponding to the sliding groove and slidably connected with the groove wall of the sliding groove, the sliding block being connected with the limiting member; a sensor fixed to the support frame for detecting the distance information between the limiting member and the lifting rope; and a driving member fixed to the support frame and connected with the sliding block, the driving member being electrically connected with the sensor and capable of moving the sliding block along the radial direction of the winding shaft according to the distance information fed back by the sensor.
4. The hoisting device of claim 3, wherein The number of the sliding blocks is two, and the two sliding blocks are oppositely arranged along the axial direction of the winding shaft, the limiting member is a limiting rod arranged along the axial direction of the winding shaft, and the two ends of the limiting rod are respectively connected with the two sliding blocks.
5. The hoisting device of claim 3, wherein The sensor is configured as a counter and connected with the winding shaft for detecting the number of rotations of the winding shaft.
6. The hoisting device of claim 3, wherein The limiting member comprises a central shaft and an aluminum layer wrapped around the lateral side of the central shaft.
7. A hoisting device as claimed in claim 6, characterised in that The central shaft is rotatably connected with the sliding block.
8. A headgear characterized by, The utility model relates to a lifting device, comprising: a cross beam; the lifting device according to any one of claims 1-7, the lifting device being rollingly connected with the cross beam.