A heavy object suspension system

Abstract

This utility model provides a heavy object suspension system, belonging to the field of mechanical suspension technology, including a winch, a wire rope, and a guide wheel unit. A support column is provided on one side of the winch, and a non-powered roller mechanism is provided at the top of the support column. The non-powered roller mechanism includes a support frame, which is fixed to the top corner of the support column away from the winch. Several rollers are arranged on the support frame, spaced apart along an arc-shaped trajectory, with the convex surface of the arc-shaped trajectory away from the top corner of the support column. The wire rope passes through the non-powered roller mechanism and then through the guide wheel unit before connecting to the top of the support column. This utility model, through the cooperation of the non-powered roller and pulley system, converts line friction into point friction, reducing wear. The roller's limiting function controls the wire rope's swing within a small range, and the distributed load-bearing capacity improves the safety factor. Furthermore, the modular design adapts to multiple scenarios, reducing energy consumption and improving efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical suspension technology, and in particular to a heavy object suspension system. Background Technology

[0002] In the fields of modern industrial manufacturing and infrastructure construction, the technological evolution of heavy-duty suspension and lifting equipment has always closely followed the upgrading of engineering needs. With the vigorous development of high-end equipment manufacturing (such as aerospace and marine engineering) and large-scale infrastructure construction (such as super high-rise buildings and deep foundation construction), higher requirements have been placed on the safety, accuracy, energy efficiency and environmental adaptability of heavy-duty suspension systems.

[0003] Currently, pulley systems and suspension technology are a prime example of the close integration of engineering and physical principles. Through mechanical optimization and functional expansion, they have achieved efficient and safe object manipulation in multiple fields. As a core component of the suspension system, the pulley system consists of a combination of fixed and movable pulleys. It simplifies operation by changing the direction of force and significantly reduces the required external force through mechanical advantages, thereby improving the practicality of the suspension system.

[0004] Although existing suspension technology can meet the basic requirements of the operation, it still has the following shortcomings in actual use:

[0005] 1. The traditional "line contact" friction mode between pulleys and wire ropes leads to severe wear on the contact surface, especially under heavy loads, which can easily cause accidents such as pulley shaft deformation and wire rope breakage, posing safety hazards.

[0006] 2. In complex working environments, wire ropes are prone to lateral swaying due to wind, vibration and other disturbances. Traditional fixed pulley blocks lack an effective trajectory constraint mechanism, have poor stability, and are difficult to achieve precise positioning.

[0007] 3. To meet the demand for heavy loads, traditional pulley blocks mainly rely on increasing motor power or multi-stage reduction mechanisms, which results in high energy consumption, large equipment size, and low economic efficiency. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of existing suspension technologies, such as severe wear of pulley systems, poor stability, and low economic efficiency, and to provide a heavy-duty suspension system.

[0009] This utility model is achieved through the following technical solution: a heavy object suspension system, including a winch, a steel wire rope installed on the winch, and a guide wheel unit for transmitting the steel wire rope; a support column is provided on one side of the winch, and a non-powered roller mechanism for conveying the steel wire rope is provided at the top of the support column; the non-powered roller mechanism includes a support frame, which is fixed to the top corner of the support column away from the winch, and a plurality of rollers are provided on the support frame, which are arranged at intervals along an arc-shaped trajectory, and the convex surface of the arc-shaped trajectory is away from the top corner of the support column; the steel wire rope is connected to the top of the support column after passing through the non-powered roller mechanism and the guide wheel unit, and the guide wheel unit includes a fixed frame, on which a plurality of movable pulleys are provided, and the fixed frame is used to connect the heavy object.

[0010] This suspension system transforms the "line contact sliding friction" of traditional pulley blocks into "point contact rolling friction" through this roller layout, significantly reducing wire rope wear. The unpowered roller mechanism requires no electric drive and controls the lateral swing amplitude of the wire rope within a small range through mechanical limits, achieving precise positioning. It is especially suitable for environments without electrical control signals or with strong electromagnetic interference, avoiding the risk of heavy object collisions.

[0011] A further improvement of this utility model is that the support frame includes an arc-shaped bracket and two symmetrically arranged arc-shaped base frames, the arc-shaped bracket and the arc-shaped base frames being vertically corresponding, and the two arc-shaped base frames being located on both sides of the arc-shaped bracket; the rollers include multiple load-bearing rollers and multiple conveying rollers, the multiple load-bearing rollers being spaced apart between the arc-shaped bracket and the arc-shaped base frames, one end of the load-bearing roller being connected to the bottom side of the arc-shaped bracket, and the other end of the load-bearing roller being connected to the top side of the arc-shaped base frame, the multiple conveying rollers being spaced apart between the two arc-shaped base frames, and both ends of the conveying rollers being connected to the inner side of the arc-shaped base frame respectively.

[0012] A further improvement of this utility model is that the arc-shaped support includes two symmetrically arranged arc-shaped top frames, which correspond vertically to the arc-shaped base frame. The two arc-shaped top frames are connected as one unit by a number of connecting columns. The number of connecting columns are arranged at intervals between the two arc-shaped top frames, and the two ends of the connecting columns are respectively connected to the inner side of the arc-shaped top frame.

[0013] A further improvement of this utility model is that both the arc-shaped top frame and the arc-shaped bottom frame are made of channel steel.

[0014] A further improvement of this utility model is that a crossbeam is provided at the top of the supporting column, and the non-powered roller mechanism can be detachably installed on the crossbeam through an arc-shaped base frame.

[0015] A further improvement of this utility model is that the fixing frame includes a support plate, the side of the support plate is used to install movable pulleys, and the bottom side of the support plate is connected to a support base plate, which is detachably connected to the heavy object.

[0016] A further improvement of this utility model is that a plurality of the movable pulleys are installed along a U-shaped trajectory on the side of the support plate, and the plurality of the movable pulleys are close to each other.

[0017] A further improvement of this utility model is that the movable pulley is a four-groove pulley.

[0018] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0019] 1. In response to the severe wear problem caused by the "line contact" friction of traditional pulleys, this suspension system adopts the "point contact rolling friction" design between the non-powered roller group and the wire rope, which reduces the wear rate of the contact surface, extends the wire breakage cycle of the wire rope, and significantly reduces the failure risk of the pulley shaft and the wire rope. This fundamentally solves the safety hazards such as deformation and breakage caused by contact stress concentration under heavy loads.

[0020] 2. To address the issue of wire ropes being easily disturbed and swaying in complex environments, this suspension system utilizes a mechanical limiting mechanism constructed from upper and lower unpowered conveyor rollers. This mechanism controls the lateral sway of the wire rope within a small range without the need for electric drive, improving positioning accuracy and effectively solving the problem of trajectory loss of control under interference from wind, vibration, and other factors. This significantly enhances the stability of the suspension system under extreme working conditions.

[0021] 3. To address the high energy consumption problem caused by the reliance on high-power motors in traditional solutions, this suspension system adopts a collaborative design of multi-layer moving pulley blocks and unpowered rollers. By utilizing the principle of mechanical gain, it reduces the driving force requirement and can meet the demand for large loads without the need to add extra motor power or reduction mechanisms. The size of the equipment and energy consumption are significantly reduced. At the same time, the modular interface design allows for flexible addition or removal of the number of roller and pulley layers, improving the efficiency of disassembly and assembly, and solving the pain points of traditional equipment being bulky and having poor engineering adaptability. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0024] Figure 2This is a structural schematic diagram of the unpowered roller mechanism according to a specific embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the guide wheel unit in a specific embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the structure of the movable pulley in a specific embodiment of this utility model.

[0027] In the diagram: 1. Winch; 2. Wire rope; 3. Support column; 4. Crossbeam; 5. Non-powered roller mechanism; 501. Arc-shaped top frame; 502. Connecting column; 503. Load-bearing roller; 504. Arc-shaped base frame; 505. Conveying roller; 506. Arc-shaped track; 6. Guide wheel unit; 601. Support plate; 602. Movable pulley; 603. Support base plate; 604. U-shaped rail; 7. Heavy object; 8. Ground; 9. Underground caisson. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Please refer to the attached document. Figure 1 and Figure 2 The following is a description of a specific embodiment: The heavy object suspension system of this utility model includes a winch 1, a steel wire rope 2 mounted on the winch 1, and a guide wheel unit 6 for transmitting the steel wire rope 2. The winch 1 is mounted on the ground 8, and a support column 3 is provided on the ground 8 on one side of the winch 1. An underground well 9 is provided on one side of the support column 3, and a non-powered roller mechanism 5 for conveying the steel wire rope 2 is provided at the top of the support column 3. The non-powered roller mechanism 5 includes a support frame, which is fixed to the top corner of the support column 3 away from the winch 1. Several rollers are provided on the support frame, and the rollers are arranged at intervals along an arc-shaped trajectory 506, with the convex surface of the arc-shaped trajectory 506 away from the top corner of the support column 3. The steel wire rope 2 is connected to the top of the support column 3 after passing through the non-powered roller mechanism 5 and the guide wheel unit 6. The guide wheel unit 6 includes a fixed frame, on which several movable pulleys 602 are provided, and the fixed frame is used to connect the heavy object 7.

[0030] In operation, the winch 1 provides power from a fixed ground source to drive the wire rope 2 in and out. The unpowered roller mechanism 5 at the top of the support column 3, with rollers arranged along an arc-shaped trajectory 506, provides passive guidance and constraint for the wire rope 2. After the wire rope 2 is drawn from the winch 1, it first passes through the roller group of the unpowered roller mechanism 5, changes direction along the arc-shaped trajectory 506, then turns via the movable pulley 602 of the guide wheel unit 6, and finally connects to the load 7. When the winch 1 rotates forward and backward, the wire rope 2 drives the rollers to rotate freely. The contact point between the rollers and the wire rope 2 rolls along the trajectory, rather than sliding.

[0031] This suspension system transforms the "line contact sliding friction" of traditional pulley blocks into "point contact rolling friction" through this roller layout, significantly reducing the wear of the wire rope 2. The non-powered roller mechanism 5 does not require electric drive and controls the lateral swing amplitude of the wire rope 2 within a small range through mechanical limiting, achieving precise positioning. It is especially suitable for environments without electrical control signals or with strong electromagnetic interference, avoiding the risk of heavy object collisions.

[0032] For details, please refer to the appendix. Figure 2 The support frame includes an arc-shaped bracket and two symmetrically arranged arc-shaped base frames 504. The arc-shaped bracket and the arc-shaped base frames 504 are vertically corresponding, and the two arc-shaped base frames 504 are located on both sides of the arc-shaped bracket. The rollers include multiple load-bearing rollers 503 and multiple conveying rollers 505. The multiple load-bearing rollers 503 are spaced apart between the arc-shaped bracket and the arc-shaped base frames 504. One end of the load-bearing roller 503 is connected to the bottom side of the arc-shaped bracket, and the other end of the load-bearing roller 503 is connected to the top side of the arc-shaped base frame 504. The multiple conveying rollers 505 are spaced apart between the two arc-shaped base frames 504, and both ends of the conveying rollers 505 are respectively connected to the inner side of the arc-shaped base frame 504.

[0033] The upper layer of the arc-shaped support frame and the lower layer of the arc-shaped base frame 504 are connected vertically by load-bearing rollers 503, forming vertical support for the wire rope 2. The conveying rollers 505 between the two arc-shaped base frames 504 are arranged laterally, forming a horizontal limit. The wire rope 2 bears a vertical load on the load-bearing rollers 503, while its lateral displacement is limited by the conveying rollers 505 on both sides. When the wire rope attempts to swing left or right, it contacts the conveying rollers 505 and drives them to rotate. The rolling friction of the rollers generates only minimal resistance, achieving dynamic limiting.

[0034] This suspension system, through the distributed design of the load-bearing roller 503 and the conveying roller 505, transforms the single-point concentrated force of the traditional pulley block into multi-point distributed load-bearing, thereby reducing the stress level of key components such as the roller shaft and pulley shaft, improving the safety factor, and meeting the redundancy design requirements of GB / T 3811-2008; at the same time, the passive limit in the horizontal direction does not require additional power, reducing system complexity and energy consumption.

[0035] For details, please refer to the appendix. Figure 3 The fixed frame includes a support plate 601, the side of which is used to install a movable pulley 602, and a support base plate 603 is connected to the bottom side of the support plate 601. The support base plate 603 is detachably connected to the weight 7.

[0036] The guide wheel unit 6 has movable pulleys 602 mounted on the side of its support plate 601, and its bottom side is bolted to the weight 7 via a support base plate 603, forming a movable pulley group that moves synchronously with the weight. When the wire rope 2 passes over the movable pulleys 602, the driving force required by the winch 1 is reduced through the principle of "effort-saving lever"; the more movable pulleys 602 used, the higher the effort-saving multiple (e.g., n movable pulleys 602 can reduce the driving force to 1 / (2n)).

[0037] The movable pulley block works in conjunction with the unpowered roller mechanism 5 to achieve distributed load bearing, reducing the power of the winch 1 and significantly reducing energy consumption; the detachable connection between the support base plate 603 and the heavy object facilitates quick replacement of the pulley block module according to the type of hoisted component, adapting to diverse scenarios such as high-precision assembly of aerospace components and installation of underwater structures in marine engineering.

[0038] For details, please refer to the appendix. Figure 3 Several movable pulleys 602 are installed on the side of the support plate 601 along the U-shaped rail 604, and the several movable pulleys 602 are close to each other.

[0039] The movable pulleys 602 are densely arranged along the U-shaped trajectory 604 of the supporting plate 601, and the pulley grooves are close to each other, forming a multi-angle envelope constraint on the wire rope 2. When the wire rope moves within the U-shaped trajectory, the multiple movable pulleys 602 rotate synchronously, distributing the concentrated load of a single pulley to multiple pulleys and avoiding excessive local stress.

[0040] This dense pulley layout with a U-shaped trajectory transforms the wire rope contact angle from the traditional 180° line contact of pulleys to multi-point small-angle contact, further reducing single-point friction loss. At the same time, multi-angle constraints reduce the risk of wire rope skewing during the lifting process, and together with the lateral limit of the unpowered roller mechanism 5, improve the overall positioning accuracy.

[0041] In one embodiment, refer to the appendix Figure 2 The arc-shaped support includes two symmetrically arranged arc-shaped top frames 501, which correspond vertically to the arc-shaped base frame 504. The two arc-shaped top frames 501 are connected as one unit by a number of connecting columns 502. The number of connecting columns 502 are arranged at intervals between the two arc-shaped top frames 501, and the two ends of the connecting columns 502 are respectively connected to the inner side of the arc-shaped top frame 501.

[0042] The two arc-shaped top frames 501 form a rigid whole through the connecting column 502, providing a stable upper support structure for the load-bearing roller 503. The arc-shaped top frames 501 and the arc-shaped bottom frames 504 correspond vertically to ensure that the support force of the load-bearing roller 503 on the wire rope 2 is evenly distributed in the vertical direction, avoiding roller skewing or wire rope jamming caused by bracket deformation.

[0043] This rigidly connected arc-shaped support structure enhances the overall stability of the unpowered roller mechanism 5, preventing roller position shifts caused by load fluctuations or vibrations, thereby ensuring the accuracy of the wire rope's movement trajectory; the spaced arrangement of the connecting columns 502 optimizes the force transmission path, reduces structural redundancy weight, and meets the requirements of lightweight design.

[0044] In one embodiment, refer to the appendix Figure 2 Both the arc-shaped top frame 501 and the arc-shaped bottom frame 504 are made of channel steel.

[0045] The arc-shaped top frame 501 and arc-shaped bottom frame 504 are made of channel steel, which utilizes the high bending strength and cross-sectional stiffness of the channel steel to support the load of the load-bearing roller 503 and the conveying roller 505. The open structure of the channel steel facilitates the quick installation of the rollers by means of pins or bolts, forming a modular assembly.

[0046] The high strength of the channel steel enhances the load-bearing capacity of the unpowered roller mechanism 5, making it suitable for heavy loads of hundreds of tons. The modular installation method allows the number of rollers to be flexibly increased or decreased according to the actual load, such as increasing the number of load-bearing rollers 503 to increase the upper limit of the load. Compared with the traditional welded structure, it improves the disassembly and assembly efficiency and is suitable for rapid assembly scenarios such as prefabricated buildings and emergency rescue.

[0047] In one embodiment, refer to the appendix Figure 1 A crossbeam 4 is provided at the top of the supporting column 3, and the non-powered roller mechanism 5 is detachably installed on the crossbeam 4 through the arc-shaped base frame 504.

[0048] The unpowered roller mechanism 5 is detachably connected to the crossbeam 4 at the top of the supporting column 3 via an arc-shaped base frame 504, such as by bolts, forming a separable modular unit. When it is necessary to adjust the load capacity of the suspension system or adapt to different construction environments, the roller mechanism can be quickly disassembled or replaced.

[0049] This detachable design enables a standardized interface for the unpowered roller mechanism 5, supporting its combination with support columns 3 and beams 4 of different specifications, significantly enhancing engineering adaptability; at the same time, redundant roller units can be pre-assembled, shortening on-site replacement time and thus improving construction efficiency.

[0050] In one embodiment, refer to the appendix Figure 4 The movable pulley 602 adopts a four-groove pulley.

[0051] The movable pulley 602 is a four-groove pulley, with each pulley containing four independent grooves, allowing the wire rope to roll rather than slide within the grooves. The groove surfaces are hardened to reduce contact wear. The four-groove structure increases the number of contact points between the wire rope and the pulley, distributing contact stress.

[0052] This four-groove design transforms the line contact of a single groove into point contact rolling friction of multiple grooves, reducing maintenance costs throughout the entire life cycle. At the same time, the multi-groove structure enhances the pulley block's resistance to eccentric loads, ensuring that even if the wire rope is slightly misaligned, it can still be stably supported by other grooves, thus improving system reliability.

[0053] 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 heavy-load suspension system, comprising a winch (1), a wire rope (2) mounted on the winch (1), and a guide wheel unit (6) for transmitting the wire rope (2), characterized in that, A support column (3) is provided on one side of the winch (1), and a non-powered roller mechanism (5) for conveying the wire rope (2) is provided at the top of the support column (3). The non-powered roller mechanism (5) includes a support frame, which is fixed at the top corner of the support column (3) away from the winch (1). Several rollers are provided on the support frame, and the rollers are arranged at intervals along an arc trajectory (506), and the convex surface of the arc trajectory (506) is away from the top corner of the support column (3). The wire rope (2) is connected to the top of the support column (3) after passing through the non-powered roller mechanism (5) and then through the guide wheel unit (6). The guide wheel unit (6) includes a fixed frame, which is provided with several movable pulleys (602), and the fixed frame is used to connect the heavy object (7).

2. The heavy object suspension system according to claim 1, characterized in that, The support frame includes an arc-shaped bracket and two symmetrically arranged arc-shaped base frames (504). The arc-shaped bracket and the arc-shaped base frames (504) correspond vertically, and the two arc-shaped base frames (504) are located on both sides of the arc-shaped bracket. The rollers include multiple load-bearing rollers (503) and multiple conveying rollers (505). The multiple load-bearing rollers (503) are spaced apart between the arc-shaped bracket and the arc-shaped base frames (504). One end of the load-bearing roller (503) is connected to the bottom side of the arc-shaped bracket, and the other end of the load-bearing roller (503) is connected to the top side of the arc-shaped base frame (504). The multiple conveying rollers (505) are spaced apart between the two arc-shaped base frames (504), and both ends of the conveying rollers (505) are connected to the inner side of the arc-shaped base frame (504).

3. The heavy object suspension system according to claim 2, characterized in that, The arc-shaped support includes two symmetrically arranged arc-shaped top frames (501), which correspond vertically to the arc-shaped base frame (504). The two arc-shaped top frames (501) are connected as one unit by a number of connecting columns (502). The number of connecting columns (502) are arranged at intervals between the two arc-shaped top frames (501), and the two ends of the connecting columns (502) are respectively connected to the inner side of the arc-shaped top frame (501).

4. A heavy object suspension system according to claim 3, characterized in that, Both the arc-shaped top frame (501) and the arc-shaped bottom frame (504) are made of channel steel.

5. A heavy object suspension system according to claim 4, characterized in that, A crossbeam (4) is provided at the top of the support column (3), and the non-powered roller mechanism (5) is detachably installed on the crossbeam (4) through the arc-shaped base frame (504).

6. A heavy object suspension system according to claim 1, characterized in that, The fixed frame includes a support plate (601), the side of the support plate (601) is used to install a movable pulley (602), the bottom side of the support plate (601) is connected to a support base plate (603), and the support base plate (603) is detachably connected to the weight (7).

7. A heavy object suspension system according to claim 6, characterized in that, Several movable pulleys (602) are installed on the side of the support plate (601) along the U-shaped track (604), and the several movable pulleys (602) are close to each other.

8. A heavy object suspension system according to claim 7, characterized in that, The movable pulley (602) is a four-groove pulley.

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