CN118324031A - Anti-sway hoisting device for crane and operation method thereof - Google Patents

Abstract

The invention discloses an anti-swing hoisting device for a crane and an operation method thereof, which relate to the technical field of hoisting and comprise a mounting frame, and are characterized by further comprising: the hoisting component is arranged on the bottom wall of the mounting frame; the first anti-swing part is arranged on the bottom wall of the mounting frame, the lifting frame is connected with the hoisting part through first lifting rings symmetrically arranged on the top wall, and the top of the lifting frame is also provided with a second anti-swing part for further buffering of the hoisting part; the fixing frame is fixedly connected to the bottom of the hoisting frame, and sliding grooves symmetrically distributed about the central axis of the fixing frame are formed in the two sides of the fixing frame; the expansion hoisting component is connected to the inner wall of the sliding groove in a sliding manner, wherein the first anti-swing component comprises a connecting frame fixedly connected to the bottom wall of the mounting frame; the anti-swing lifting device for the crane can effectively reduce swing during lifting, increase the safety and convenience of lifting, and is suitable for lifting cargoes with different specifications.

Description

Anti-sway hoisting device for crane and operation method thereof

Technical Field

The invention relates to the technical field of hoisting, and in particular to an anti-sway hoisting device for a crane and an operating method thereof.

Background technique

As an important logistics and transportation equipment, the frequent starting and braking operations of bridge cranes have a direct impact on operational efficiency and safety during operation. Among them, the flexible structure of the wire rope is the main source of crane swing. This flexible structure makes the wire rope easy to deform when subjected to force, and produces obvious swing when the crane is started or braked. This swing not only affects the stability of the hoisting, but also reduces work efficiency and increases the difficulty of operation. Especially when the bridge crane works outdoors, the complexity and variability of the working environment make the swing problem more prominent. Wind force is a factor that cannot be ignored in outdoor work. When the wind is strong, the wind force will produce additional thrust on the spreader, further aggravating the swing of the spreader, which not only increases the instability of the operation, but also may pose a serious threat to the safety of the hoisting operation.

Existing hoisting devices attempt to reduce sway by adding limit slings. The limit slings can limit the swaying amplitude of the hoist to a certain extent through pulling action. However, in practical applications, the limitations of this method are gradually exposed. Due to the diversity of hoisting environments, the swaying of the hoist will be affected. Therefore, a single limit sling setting is difficult to adapt to various complex hoisting environments.

In addition, the setting of the limit sling will also bring certain limitations to the lifting process. It will limit the flexibility and operating range of the lifting equipment, making the lifting operation difficult in certain specific lifting scenarios. At the same time, the installation and maintenance of the limit sling also requires additional costs and time investment, increasing the overall workload.

To this end, we propose an anti-sway hoisting device for a crane and an operating method thereof.

Summary of the invention

The object of the present invention is to provide an anti-sway hoisting device for a crane to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solution: an anti-sway hoisting device for a crane, comprising a mounting frame, and further comprising:

A hoisting component is arranged on the bottom wall of the mounting frame;

The first anti-sway component is arranged on the bottom wall of the mounting frame and has two groups symmetrically arranged about the hoisting component, and is used to prevent the hoisting component from swaying and limiting the position;

The hanging frame is connected to the hoisting component through a first hanging ring symmetrically arranged on the top wall, and a second anti-sway component for further buffering the hoisting component is also arranged on the top of the hanging frame;

A fixing frame, fixedly connected to the bottom of the hanging frame, wherein both sides of the fixing frame are provided with sliding grooves symmetrically distributed about the central axis of the fixing frame;

Expanded lifting components are slidably connected to the inner wall of the sliding groove and are used to connect with the lifted goods;

Among them, the first anti-sway component includes a connecting frame fixedly connected to the bottom wall of the mounting frame, a sliding frame slidably connected to the outer wall of the connecting frame and a support rod fixedly connected to the inner wall of the sliding frame, both ends of the support rod are rotatably connected to connecting rods that cooperate with the hoisting component, and the side wall of the sliding frame is also fixedly connected to a tension spring symmetrically arranged about the central axis of the sliding frame, and the end of the tension spring away from the sliding frame is fixedly connected to the connecting frame.

Preferably, the hoisting component includes two groups of mounting seats fixedly connected to the bottom wall of the mounting frame and a support shaft rotatably connected between the two groups of mounting seats. The outer wall of the support shaft is also fixedly connected to two groups of winding drums corresponding to the mounting seats, and the outer walls of the two groups of winding drums are both provided with steel cables.

Preferably, one end of the two groups of steel cables away from the winding drum is respectively connected to the first lifting ring through a second lifting ring, and the outer wall of the steel cable is also slidably connected to the first limit frame and the second limit frame, and the outer wall of the steel cable is also fixedly connected to a limit block for limiting the first limit frame.

Preferably, both side walls of the first limit frame are fixedly connected with first connecting ears corresponding to the connecting rod, the first limit frame is rotatably connected to the corresponding connecting rod through the first connecting ears on both sides, and second connecting ears cooperating with the second anti-sway component are also provided at both ends of the second limit frame.

Preferably, the second anti-sway component includes a damping rod rotatably connected to the top wall of the hanging frame and symmetrically arranged about the central axis of the hanging frame, and one end of the two groups of damping rods away from the hanging frame are rotatably connected to the second limit frame through a second connecting ear.

Preferably, the expansion lifting component includes two expansion frames respectively slidably connected to the inner walls of the sliding groove and a connecting part arranged on the top of the expansion frame. The bottom wall of the expansion frame is also fixedly connected to a lifting cable symmetrically arranged about the central axis of the expansion frame, and a hook is also arranged at one end of the lifting cable away from the expansion frame.

Preferably, the connecting part includes a first reinforcement frame and a second reinforcement frame which are slidably connected to each other, and the ends of the first reinforcement frame and the second reinforcement frame which are away from each other are respectively rotatably connected to the expansion frame and the hanging frame, and the bottom wall of the second reinforcement frame is also fixedly connected to an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the first reinforcement frame.

Preferably, a hoisting motor is also fixedly connected to the top wall of the mounting frame, and an output end of the hoisting motor is connected to the support shaft via a transmission part.

Preferably, the top wall of the mounting frame is provided with four groups of connection seats for connecting with the lifting trolley, and the four groups of connection seats are evenly distributed on the top wall of the mounting frame.

An operating method of an anti-sway hoisting device for a crane specifically comprises the following steps:

S1: Install the mounting frame to the bottom of the lifting trolley through the connecting seat;

S2: according to the type of objects to be hoisted, the electric telescopic rod is started, and the first reinforcement frame and the second reinforcement frame are driven to slide relative to each other, and the expansion frame is driven to slide relative to the fixed frame, so as to adjust the distance between the two groups of expansion frames. After the adjustment is completed, the hoisting motor is controlled to start;

S3: When the winch motor starts, it drives the support shaft through the transmission part, and drives the winding drum to rotate and release the steel cable;

S4: When the steel cable is unwound, the limit block moves downward accordingly, thereby causing the first limit frame to lose the limit of the limit block. When the first limit frame loses the limit, the two sets of sliding frames are pulled to slide on the outer walls of the two sets of connecting frames respectively under the action of the tension spring, so that the angle between the corresponding two sets of connecting rods gradually decreases, and the first limit frame supporting the steel cable slides downward, thereby achieving effective support for the steel cable;

S5: As the unwinding proceeds, the hook gradually contacts the cargo, the lifting cable is connected to the cargo through the hook, and the winch motor is controlled to reverse again, the steel cable starts to reel in, and the cargo is gradually lifted;

S6: The first limit frame supports the steel cable to prevent shaking. When the steel cable is rolled up to the limit block and contacts the first limit frame, the first limit frame is driven to slide upward, thereby supporting the steel cable and preventing shaking, and will not affect the height and action of the hoisting.

S7: Control the hoisting trolley to complete the displacement of the cargo. When the hoisting frame and the cargo sway, the two sets of damping rods cooperate with the second limit frame to absorb the sway. The first limit frame cooperates with the second limit frame to effectively reduce the sway during hoisting.

Compared with the prior art, the present invention has the following beneficial effects:

By means of the first anti-swaying component and the first sliding limit frame, the steel cable can be effectively supported during the hoisting process, and the swinging during the hoisting can be effectively prevented. When the steel cable is rolled up to the limit block and contacts the first limit frame, the first limit frame will slide upwards to further support the steel cable. This design not only ensures the stability of the steel cable, but also prevents the swinging. More importantly, this sliding mechanism will not have any impact on the hoisting height and action, thus ensuring the smooth progress of the hoisting operation.

By setting up the second anti-sway component and the second limit frame, the two groups of damping rods cooperate with the second limit frame. When the hoisting frame and the cargo begin to sway, the two groups of damping rods will quickly take effect. Through their own damping effect, they absorb and reduce the amplitude of the sway, so that the hoisting frame and the cargo can return to a stable state more quickly. At the same time, the second limit frame also plays an indispensable role. It works in conjunction with the damping rod to further reduce the sway during hoisting by providing additional support and restriction. This double protection design enables the hoisting operation to maintain high stability and safety when facing various external interferences.

The distance between the two sets of expansion racks can be flexibly adjusted according to the specifications of the goods to be hoisted. This design enables the hoisting components to adapt to goods of different sizes and weights, thereby improving the versatility and applicability of the equipment. What is more unique is that the expansion hoisting components also have the function of adjusting the hoisting center of gravity during the hoisting process. When the goods sway, we can fine-tune the hoisting center of gravity by separately controlling the extension and retraction of one set of expansion racks. This fine-tuning can effectively balance the force distribution of the goods, thereby reducing the amplitude of the swaying and making the hoisting process smoother and safer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is one of the overall structural schematic diagrams of the anti-sway hoisting device for a crane provided in the present application;

FIG2 is a second schematic diagram of the overall structure of the anti-sway hoisting device for a crane provided by the present application;

FIG3 is one of the planar structural schematic diagrams of the anti-sway hoisting device for a crane provided in the present application;

FIG4 is a second schematic diagram of the planar structure of the anti-sway hoisting device for a crane provided by the present application;

FIG5 is one of the specific structural schematic diagrams of the mounting frame of the anti-sway hoisting device for a crane provided in the present application;

FIG6 is a second schematic diagram of the specific structure of the mounting frame of the anti-sway hoisting device for a crane provided in the present application;

FIG7 is one of the specific structural schematic diagrams of the hoisting frame of the anti-sway hoisting device for a crane provided in the present application;

FIG8 is a second schematic diagram of the specific structure of the hoisting frame of the anti-sway hoisting device for a crane provided in the present application.

In the figure: 1. mounting frame; 11. connecting seat; 12. mounting seat; 13. supporting shaft; 14. hoisting motor; 15. transmission part; 16. winding drum; 17. steel cable; 171. second lifting ring; 172. first limiting frame; 173. second limiting frame; 174. first connecting ear; 175. second connecting ear; 176. limiting block; 2. lifting frame; 21. first lifting ring; 22. fixing frame; 221. sliding groove; 23. damping rod; 24. expansion frame; 241. lifting cable; 242. hook; 25. first reinforcement frame; 251. second reinforcement frame; 252. electric telescopic rod; 3. connecting frame; 31. sliding frame; 32. supporting rod; 33. connecting rod; 34. tension spring.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to Figures 1-8. The present invention provides a technical solution: an anti-sway hoisting device for a crane, comprising a mounting frame 1, and further comprising:

A hoisting component is arranged on the bottom wall of the mounting frame 1;

The first anti-sway component is arranged on the bottom wall of the mounting frame 1 and has two groups symmetrically arranged about the hoisting component, and is used to prevent the hoisting component from swaying and limiting the position;

The hanging frame 2 is connected to the hoisting component through a first hanging ring 21 symmetrically arranged on the top wall. A second anti-sway component for further buffering the hoisting component is also arranged on the top of the hanging frame 2;

The fixing frame 22 is fixedly connected to the bottom of the hanging frame 2, and the inside of both sides of the fixing frame 22 are provided with sliding grooves 221 symmetrically distributed about the central axis of the fixing frame 22;

The extended lifting component is slidably connected to the inner wall of the sliding groove 221 for connection with the lifted cargo;

Among them, the first anti-sway component includes a connecting frame 3 fixedly connected to the bottom wall of the mounting frame 1, a sliding frame 31 slidably connected to the outer wall of the connecting frame 3 and a support rod 32 fixedly connected to the inner wall of the sliding frame 31, both ends of the support rod 32 are rotatably connected to a connecting rod 33 that cooperates with the hoisting component, and the side wall of the sliding frame 31 is also fixedly connected to a tension spring 34 symmetrically arranged about the central axis of the sliding frame 31, and the end of the tension spring 34 away from the sliding frame 31 is fixedly connected to the connecting frame 3.

The hoisting component includes two groups of mounting seats 12 fixedly connected to the bottom wall of the mounting frame 1 and a support shaft 13 rotatably connected between the two groups of mounting seats 12. The outer wall of the support shaft 13 is also fixedly connected to two groups of winding drums 16 corresponding to the mounting seats 12. The outer walls of the two groups of winding drums 16 are both provided with steel cables 17.

The ends of the two groups of steel cables 17 away from the winding drum 16 are respectively connected to the first lifting ring 21 through the second lifting ring 171, and the outer wall of the steel cable 17 is also slidably connected with a first limiting frame 172 and a second limiting frame 173. The outer wall of the steel cable 17 is also fixedly connected with a limiting block 176 for limiting the first limiting frame 172. Through the first anti-sway component and the sliding first limiting frame 172, the steel cable 17 can be effectively supported during the lifting process to effectively prevent the swaying caused during the lifting. When the steel cable 17 is reeled up to the limiting block 176 and contacts with the first limiting frame 172, the first limiting frame 172 will slide upward accordingly to further support the steel cable 17. This design not only ensures the stability of the steel cable 17, but also prevents the occurrence of swaying. More importantly, this sliding mechanism will not have any impact on the lifting height and action, thereby ensuring the smooth progress of the lifting operation.

Both side walls of the first limiting frame 172 are fixedly connected with first connecting ears 174 corresponding to the connecting rod 33. The first limiting frame 172 is rotatably connected to the corresponding connecting rod 33 through the first connecting ears 174 on both sides. Both ends of the second limiting frame 173 are also provided with second connecting ears 175 that cooperate with the second anti-sway component.

The second anti-sway component includes a damping rod 23 which is rotatably connected to the top wall of the hanging frame 2 and symmetrically arranged about the central axis of the hanging frame 2. The ends of the two groups of damping rods 23 away from the hanging frame 2 are both rotatably connected to the second limit frame 173 through the second connecting ear 175. Through the second anti-sway component and the second limit frame 173, the two groups of damping rods 23 cooperate with the second limit frame 173. When the hanging frame 2 and the goods begin to sway, the two groups of damping rods 23 will quickly take effect. Through their own damping effect, they absorb and reduce the amplitude of the sway, so that the hanging frame 2 and the goods can return to a stable state more quickly. At the same time, the second limit frame 173 also plays an indispensable role. It works in conjunction with the damping rod 23 to further reduce the sway during hoisting by providing additional support and restriction. This double-protection design enables the hoisting operation to maintain high stability and safety when facing various external interferences.

The expansion lifting components include two expansion frames 24 respectively slidably connected to the inner walls of the sliding groove 221 and a connecting part arranged on the top of the expansion frame 24. The bottom wall of the expansion frame 24 is also fixedly connected to a suspension cable 241 symmetrically arranged about the central axis of the expansion frame 24. A suspension cable 241 is also provided with a hook 242 at one end away from the expansion frame 24.

The connection part includes a first reinforcement frame 25 and a second reinforcement frame 251 which are slidably connected. The ends of the first reinforcement frame 25 and the second reinforcement frame 251 which are away from each other are rotatably connected to the expansion frame 24 and the hoisting frame 2 respectively. The bottom wall of the second reinforcement frame 251 is also fixedly connected with an electric telescopic rod 252. The output end of the electric telescopic rod 252 is fixedly connected to the first reinforcement frame 25. The distance between the two groups of expansion frames 24 can be flexibly adjusted according to the specifications of the goods to be hoisted. This design enables the hoisting components to adapt to goods of different sizes and weights, thereby improving the versatility and applicability of the equipment. What is more unique is that the expansion hoisting components also have the function of adjusting the hoisting center of gravity during the hoisting process. When the goods sway, we can fine-tune the hoisting center of gravity by individually controlling the extension and retraction of one group of expansion frames 24. This fine-tuning can effectively balance the force distribution of the goods, thereby reducing the amplitude of the swaying and making the hoisting process more stable and safe.

A hoisting motor 14 is also fixedly connected to the top wall of the mounting frame 1 , and an output end of the hoisting motor 14 is connected to the supporting shaft 13 via a transmission part 15 .

The top wall of the mounting frame 1 is provided with four groups of connection seats 11 for connecting with the lifting trolley, and the four groups of connection seats 11 are evenly distributed on the top wall of the mounting frame 1 .

An operating method of an anti-sway hoisting device for a crane specifically comprises the following steps:

S1: Install the mounting frame 1 to the bottom of the lifting trolley through the connecting seat 11;

S2: according to the type of objects to be hoisted, the electric telescopic rod 252 is started, and the first reinforcement frame 25 and the second reinforcement frame 251 are driven to slide relative to each other, and the expansion frame 24 is driven to slide relative to the fixed frame 22, so as to adjust the distance between the two groups of expansion frames 24. After the adjustment is completed, the hoisting motor 14 is controlled to start;

S3: When the hoisting motor 14 is started, the transmission part 15 drives the support shaft 13, and drives the winding drum 16 to rotate and release the steel cable 17;

S4: When the steel cable 17 is unwound, the limit block 176 moves downward accordingly, so that the first limit frame 172 loses the limit of the limit block 176. When the first limit frame 172 loses the limit, the two sets of sliding frames 31 are pulled to slide on the outer walls of the two sets of connecting frames 3 respectively under the action of the tension spring 34, so that the angle between the corresponding two sets of connecting rods 33 gradually decreases, and the first limit frame 172 is supported to slide downward, so as to achieve effective support for the steel cable 17;

S5: As the unwinding proceeds, the hook 242 gradually contacts the cargo, the hoisting cable 241 is connected to the cargo through the hook 242, and the winch motor 14 is controlled to reverse again, the steel cable 17 starts to reel in, and the cargo is gradually lifted;

S6: The first limit frame 172 supports the steel cable 17 to prevent shaking. When the steel cable 17 is rolled up to the limit block 176 and contacts the first limit frame 172, the first limit frame 172 is driven to slide upward, thereby supporting the steel cable 17 and preventing shaking, and will not affect the height and action of the hoisting.

S7: Control the lifting trolley to complete the displacement of the goods. When the lifting frame 2 and the goods sway, the two sets of damping rods 23 cooperate with the second limit frame 173 to absorb the sway. The first limit frame 172 cooperates with the second limit frame 173 to effectively reduce the sway during lifting.

Working principle: Install the mounting frame 1 to the bottom of the lifting trolley through the connecting seat 11, start the electric telescopic rod 252 according to the type of objects to be lifted, and drive the first reinforcement frame 25 and the second reinforcement frame 251 to slide relative to each other, and drive the expansion frame 24 to slide relative to the fixed frame 22, so as to achieve the purpose of adjusting the distance between the two groups of expansion frames 24. The distance between the two groups of expansion frames 24 can be flexibly adjusted according to the specifications of the goods to be lifted. This design enables the lifting components to adapt to goods of different sizes and weights, thereby improving the versatility and applicability of the equipment. What is more unique is that the expansion lifting components also have the function of adjusting the lifting center of gravity during the lifting process. When the goods sway, we can achieve the lifting by separately controlling the extension and retraction of one group of expansion frames 24. Fine adjustment of the center of gravity can effectively balance the force distribution of the cargo, thereby reducing the amplitude of the swing and making the hoisting process more stable and safe. After the adjustment is completed, the hoisting motor 14 is controlled to start. When the hoisting motor 14 starts, the transmission part 15 is provided to drive the support shaft 13, and drive the winding drum 16 to rotate and release the steel cable 17. When the steel cable 17 is unwound, the limit block 176 moves downward, thereby causing the first limit frame 172 to lose the limit of the limit block 176. When the first limit frame 172 loses the limit, the two groups of sliding frames 31 are pulled to slide on the outer walls of the two groups of connecting frames 3 respectively under the action of the tension spring 34, so that the angle between the corresponding two groups of connecting rods 33 gradually becomes smaller, and the first limit frame 172 is supported to slide downward, thereby achieving effective support for the steel cable 17.

As the unwinding proceeds, the hook 242 gradually contacts the cargo, the lifting cable 241 is connected to the cargo through the hook 242, and the winch motor 14 is controlled to reverse again, the steel cable 17 begins to reel in, and the cargo is gradually lifted up, the first limit frame 172 supports the steel cable 17 to prevent shaking, and when the steel cable 17 is reeled in to the limit block 176 and contacts the first limit frame 172, the first limit frame 172 is driven to slide upward, thereby supporting the steel cable 17 and preventing shaking from occurring. This design not only ensures the stability of the steel cable 17, but also prevents shaking from occurring. More importantly, this sliding mechanism It will not cause any impact on the height and action of the hoisting, ensuring the smooth progress of the hoisting operation, controlling the hoisting trolley to complete the displacement of the goods. When the hoisting frame 2 and the goods sway, the two groups of damping rods 23 cooperate with the second limit frame 173. The two groups of damping rods 23 will quickly take effect. Through their own damping effect, they absorb and reduce the amplitude of the swaying, so that the hoisting frame 2 and the goods can restore the stable state more quickly. At the same time, the second limit frame 173 also plays an indispensable role. It works in conjunction with the damping rod 23 to further reduce the swaying during hoisting by providing additional support and restriction. This double-protection design allows the hoisting operation to maintain high stability and safety when facing various external interferences. The first limit frame 172 cooperates with the second limit frame 173 to effectively reduce the swaying during hoisting.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. Anti-swing hoisting device for crane, including mounting bracket (1), its characterized in that still includes:

The hoisting component is arranged on the bottom wall of the mounting frame (1);

The first anti-swing part is arranged on the bottom wall of the mounting frame (1) and symmetrically provided with two groups of anti-swing limiting parts relative to the hoisting parts;

The hoisting frame (2) is connected with the hoisting component through first hoisting rings (21) symmetrically arranged on the top wall, and a second anti-swing component for further buffering the hoisting component is further arranged on the top of the hoisting frame (2);

the fixing frame (22) is fixedly connected to the bottom of the hoisting frame (2), and sliding grooves (221) symmetrically distributed about the central axis of the fixing frame (22) are formed in the two sides of the fixing frame (22);

The expanding hoisting component is connected to the inner wall of the sliding groove (221) in a sliding manner and is used for connecting the hoisting component with the hoisted goods;

The first anti-swing component comprises a connecting frame (3) fixedly connected to the bottom wall of the mounting frame (1), a sliding frame (31) slidingly connected to the outer wall of the connecting frame (3) and a supporting rod (32) fixedly connected to the inner wall of the sliding frame (31), connecting rods (33) matched with the hoisting component are rotationally connected to the two ends of the supporting rod (32), tension springs (34) symmetrically arranged on the central axis of the sliding frame (31) are fixedly connected to the side wall of the sliding frame (31), and one end, far away from the sliding frame (31), of each tension spring (34) is fixedly connected with the connecting frame (3).

2. The anti-sway hoisting device for a crane according to claim 1, characterized in that: the winch component comprises two groups of installation seats (12) fixedly connected to the bottom wall of the installation frame (1) and a supporting shaft (13) rotatably connected between the two groups of installation seats (12), two groups of winding drums (16) corresponding to the installation seats (12) are fixedly connected to the outer wall of the supporting shaft (13), and steel cables (17) are arranged on the outer wall of each winding drum (16).

3. The anti-sway hoisting device for a crane according to claim 2, characterized in that: two sets of one end that receive reel (16) is kept away from to steel cable (17) is connected with first rings (21) through second rings (171) respectively, steel cable (17) outer wall still sliding connection has first spacing (172) and second spacing (173), steel cable (17) outer wall still fixedly connected with is used for carrying out spacing stopper (176) to first spacing (172).

4. A swing-preventing lifting device for a crane according to claim 3, wherein: the two side walls of the first limiting frame (172) are fixedly connected with first connecting lugs (174) corresponding to the connecting rods (33), the first limiting frame (172) is respectively connected with the corresponding connecting rods (33) in a rotating mode through the first connecting lugs (174) on two sides, and second connecting lugs (175) matched with the second anti-swing parts are further arranged at two ends of the second limiting frame (173).

5. The anti-sway lifting device for a crane of claim 4, wherein: the second anti-swing part comprises damping rods (23) which are rotationally connected to the top wall of the lifting frame (2) and symmetrically arranged relative to the central axis of the lifting frame (2), and two groups of damping rods (23) are rotationally connected with the second limiting frame (173) through second connecting lugs (175) at one ends of the damping rods (23) far away from the lifting frame (2).

6. The anti-sway lifting device for a crane according to claim 5, wherein: the expansion hoisting component comprises two expansion frames (24) which are respectively connected to the inner wall of the sliding groove (221) in a sliding mode and a connecting portion which is arranged at the top of each expansion frame (24), the bottom wall of each expansion frame (24) is fixedly connected with a lifting cable (241) which is symmetrically arranged on the central axis of each expansion frame (24), and one end, far away from each expansion frame (24), of each lifting cable (241) is further provided with a lifting hook (242).

7. The anti-sway lifting device for a crane of claim 6, wherein: the connecting portion comprises a first reinforcing frame (25) and a second reinforcing frame (251) which are connected in a sliding mode, one ends, far away from each other, of the first reinforcing frame (25) and the second reinforcing frame (251) are respectively connected with the expansion frame (24) and the lifting frame (2) in a rotating mode, an electric telescopic rod (252) is fixedly connected to the bottom wall of the second reinforcing frame (251), and the output end of the electric telescopic rod (252) is fixedly connected with the first reinforcing frame (25).

8. The anti-sway lifting device for a crane of claim 7, wherein: the top wall of the mounting frame (1) is fixedly connected with a hoisting motor (14), and the output end of the hoisting motor (14) is connected with the supporting shaft (13) through a transmission part (15).

9. The anti-sway hoisting device for a crane of claim 8, wherein: the top wall of the mounting frame (1) is provided with four groups of connecting seats (11) used for being connected with the hoisting trolley, and the four groups of connecting seats (11) are uniformly distributed on the top wall of the mounting frame (1).

10. The method of operating a vibratory dust collector for an industrial vacuum cleaner of claim 9, comprising the steps of:

s1: the mounting frame (1) is mounted to the bottom of the hoisting trolley through the connecting seat (11);

S2: according to the type of the article to be hoisted, the electric telescopic rod (252) is started, the first reinforcing frame (25) and the second reinforcing frame (251) are driven to slide relatively, the expansion frames (24) are driven to slide relatively to the fixed frame (22), the aim of adjusting the distance between the two groups of expansion frames (24) is achieved, and the hoisting motor (14) is controlled to start after the adjustment is finished;

S3: when the winch motor (14) is started, the supporting shaft (13) is driven by the transmission part (15) and the winding drum (16) is driven to rotate along with the supporting shaft and release the steel cable (17);

S4: when the steel cable (17) is unreeled, the limiting block (176) moves downwards along with the steel cable, so that the first limiting frame (172) loses the limit of the limiting block (176), and when the first limiting frame (172) loses the limit, the two groups of sliding frames (31) are pulled to slide on the outer walls of the two groups of connecting frames (3) respectively under the action of the tension springs (34), so that the included angle between the two corresponding groups of connecting rods (33) is gradually reduced, the first limiting frame (172) is supported to slide downwards, and the effective support of the steel cable (17) is realized;

S5: as unreeling proceeds, the lifting hook (242) gradually contacts with the goods, the lifting cable (241) is connected with the goods through the lifting hook (242), the winding motor (14) is controlled to rotate reversely again, the steel cable (17) starts to wind, and the goods are lifted gradually;

s6: the first limiting frame (172) supports the steel cable (17) to avoid shaking, and when the steel cable (17) is wound to the limit block (176) to be contacted with the first limiting frame (172), the first limiting frame (172) is driven to slide upwards along with the limit block, so that the steel cable (17) is supported while the swinging is prevented, and the lifting height and the lifting action are not influenced;

S7: the displacement to the goods is accomplished to control hoist and mount dolly, when hoist and mount frame (2) and goods appear swaing, and two sets of damping rods (23) cooperate second spacing (173) to swaing and absorb, cooperate with second spacing (173) through first spacing (172), sways when effectively reducing hoist and mount.