CN118289627A - Hoisting device and hoisting method - Google Patents

Abstract

The present application discloses a hoisting device, comprising: a hanger including at least two longitudinal beams, with a transverse beam arranged between the longitudinal beams; a plurality of sling units, movably arranged below the hanger, with a steel wire rope movably connected below the sling unit, and a hook fixedly connected below the steel wire rope; a first adjustment unit arranged on the hanger, connected to the sling unit, and capable of adjusting the spacing between the plurality of slings during operation; a second adjustment unit arranged below the hanger, connected to the sling unit in a transmission manner, and capable of driving the sling unit to reel in the steel wire rope during operation. The beneficial effects of the present application are as follows: the present scheme adjusts the sling unit through the first adjustment unit and the second adjustment unit, firstly, the spacing between the sling units can be adjusted conveniently and quickly, so that the hoisting device meets different hoisting requirements; secondly, the length of the steel wire rope can be automatically adjusted according to different hoisting requirements, effectively avoiding manual operation by the operator; thirdly, a plurality of hooks can be used in combination, and hoisting is more flexible and convenient.

Description

Hoisting device and hoisting method

Technical Field

The present application relates to the technical field of hoisting equipment, and specifically to a hoisting device and a hoisting method.

Background technique

Lifting devices are widely used in various projects or transportation that require lifting. For example, in construction projects, concrete is often prefabricated into prefabricated concrete components, and then transported to the construction site for assembly and installation. Among them, the prefabricated component lifting device is a device used to transport and install prefabricated concrete components from the production site to the construction site. It can improve construction efficiency, reduce labor costs, and ensure construction quality and safety. At present, the main components of traditional prefabricated component lifting devices include embedded hanging nails, special lifting tools, lifting machinery, etc.; embedded hanging nails are metal parts embedded in concrete before the prefabricated components are cast. They can be quickly hooked with special lifting tools to realize the lifting, flipping, transportation and installation of prefabricated components; special lifting tools are lifting tools used in conjunction with embedded hanging nails. They can choose different types according to the shape, weight, lifting angle and other factors of the prefabricated components, such as clamping type, vacuum adsorption type, sling type, round head type, flat plate type, etc. However, different prefabricated components (such as walls, floor slabs, stairs, etc.) often require special hoists when they are hoisted, resulting in poor versatility of the hoists.

In order to solve the problem of poor adaptability of the lifting equipment, the patent with the prior art publication number CN112919304B provides a lifting equipment for prefabricated components and a lifting method thereof. When lifting, the device determines the number and combination of lifting equipment according to the weight, shape, installation height and lifting site conditions of the prefabricated components; if only one lifting equipment is required, the lifting ring is clamped and fixed to the hook of the tower crane, and then the self-locking hook is clamped and fixed to the embedded lifting ear on the prefabricated component. If three lifting slings are needed to form a combined sling, first, the hook of the tower crane is clamped and fixed in the lifting ring of the No. 1 lifting sling, and then the lifting rings of the No. 2 lifting sling and the No. 3 lifting sling are respectively clamped and fixed in the self-locking hook of the No. 1 lifting sling, and the load-bearing steel beams of the No. 2 lifting sling and the No. 3 lifting sling are placed vertically with the load-bearing steel beam of the No. 1 lifting sling, so that a combined sling is formed between the three lifting slings, and then the self-locking hooks of the No. 2 lifting sling and the No. 3 lifting sling are respectively clamped and fixed to the embedded lifting ears of the prefabricated components. Different combinations of multiple slings can meet the lifting operations of different prefabricated parts. Although the above-mentioned prior art solutions can achieve the effect of lifting different prefabricated parts through different combinations of multiple hoisting devices, different prefabricated components often have different width dimensions. The combination of the above-mentioned prior art can only meet certain specific dimensions, and each hoist needs to manually adjust the length when adjusting the two sets of lifting wire ropes. Especially when used in combination, the length of multiple lifting wire ropes is difficult to meet the lifting requirements. First, the operation is troublesome, and second, the operation is unsafe. The entire operation process is relatively troublesome and cannot meet construction needs.

Application Contents

In order to solve one of the above-mentioned technical defects, a lifting device and a lifting method are provided in an embodiment of the present application.

According to a first aspect of an embodiment of the present application, there is provided a lifting device, comprising:

A hanger, the hanger comprising at least two longitudinal beams, with a transverse beam disposed between the longitudinal beams;

A plurality of sling units are movably arranged below the hanger, a steel wire rope is movably connected below the sling unit, and a hook is fixedly connected below the steel wire rope;

A first adjustment unit is arranged on the hanger, connected to the hanger unit, and can adjust the distance between the plurality of hanger units when in operation;

The second adjusting unit is arranged below the hanger and is transmission-connected with the hanger unit, and can drive the hanger unit to reel in the wire rope when in operation.

Preferably, the first adjusting unit comprises:

At least two moving components are each arranged at the end of the longitudinal beam, and the sling unit is arranged below the moving components; when working, the moving components can drive the sling unit to move along the extending direction of the longitudinal beam.

The first driving assembly is arranged at one side of the longitudinal beam and is transmission-connected with the moving assembly; when in operation, the moving assembly can be driven to move along the extending direction of the longitudinal beam.

Preferably, the moving assembly includes a moving plate, a toothed plate, a traveling gear, a driving gear, a driven gear and a connecting shaft;

The movable plate has two ends movably connected to the ends of the longitudinal beam, and the movable plate extends transversely and is perpendicular to the longitudinal beam;

The tooth plate is arranged on the longitudinal beam and is consistent with the extending direction of the longitudinal beam;

The driving gear is arranged in the bearing seats at both ends of the moving plate, is coaxially fixedly connected with the traveling gear, is meshedly connected with the driven gear, and has the same rotation direction as the extension direction of the longitudinal beam;

The driven gear is fixedly connected to the driven gear at the other end of the moving plate via a connecting shaft.

Preferably, the first driving assembly comprises:

A first motor is arranged on one side of the longitudinal beam, and an output end of the first motor is coaxially fixedly connected with the first pulley;

A second pulley is arranged outside the bearing seat and is coaxially fixedly connected to the driving gear;

A third pulley is arranged between the first pulley and the second pulley and is connected to the first connecting rod and the second connecting rod by a movable shaft;

The first pulley, the second pulley and the third pulley are connected by a transmission belt.

Preferably, the hanger unit comprises a mounting plate and a winding assembly;

The mounting plate is fixedly arranged below the movable plate, and a plate frame is arranged at the end of the mounting plate;

The winding assembly can be rotatably arranged in the plate frame and can wind up the wire rope during operation.

Preferably, the winding assembly comprises: a winding drum, a plurality of pulleys, and a plurality of first through holes arranged on the plate frame;

The winding drum is rotatably arranged in the plate frame, and the rotating axis of the winding drum is perpendicular to the plane of the hanger;

The plurality of pulleys are rotatably arranged on the outside of the plate frame, corresponding to the positions of the first through hole and the winding drum.

Preferably, the second adjusting unit comprises:

A transmission assembly is disposed below the hanger and is transmission-connected to the hanger unit;

A second driving assembly is disposed below the hanger and connected to the transmission assembly;

During operation, the second driving assembly drives the sling unit to reel in the wire rope through the transmission assembly.

Preferably, the transmission assembly includes a flower shaft, a disconnecting piece, a worm, a worm wheel, a first gear and a second gear;

The flower axis passes through a second through hole provided below the plate frame, one end of which is connected to the second driving assembly, and the other end of which is connected to the disconnecting member;

The disconnecting member is connected to the worm; the worm is meshingly connected to the worm wheel;

The first gear is coaxially fixedly connected to the worm gear, the second gear is coaxially fixedly connected to the winding drum, and the first gear is meshingly connected to the second gear.

Preferably, the disconnecting member comprises a slip ring, a spring and a fixing ring;

The slip ring is fixedly arranged at one end of the flower shaft away from the second driving assembly, and a ring array of ball blocks is arranged at one side of the slip ring away from the flower shaft;

The spring is sleeved on the flower shaft and located between the through hole and the slip ring;

The fixing ring is fixedly arranged at one end of the worm, and a ball groove is correspondingly provided on a side of the fixing ring close to the slip ring, and the ball groove corresponds to the position of the ball block.

According to a second aspect of an embodiment of the present application, a hoisting method is provided, using any of the hoisting devices described above, comprising the following steps:

Place the object to be hoisted under the hoisting device;

Starting the first adjustment unit to adjust the spreader unit to a suitable spacing;

Starting the second adjusting unit to tighten the steel wire rope;

When replacing the hoisting object, the plurality of hooks on the hoisting device are combined according to the reserved lifting ears of different hoisting objects.

Compared with the prior art, the present invention has the following beneficial effects: the present invention adjusts the sling unit through the first adjusting unit and the second adjusting unit. First, the spacing between the sling units can be adjusted conveniently and quickly, so that the spacing between multiple sling units can meet different lifting requirements; second, the length of the wire rope can be automatically adjusted according to different lifting requirements, effectively avoiding manual operation by the operator; third, multiple hooks can be used in combination, and lifting is more flexible and convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a lifting device according to an embodiment of the present application;

FIG2 is a rear view schematic diagram of the lifting device according to an embodiment of the present application;

FIG3 is a schematic diagram of the side structure of the lifting device according to an embodiment of the present application;

FIG4 is a schematic diagram of the assembly structure of the lifting device according to an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a moving component in a hoisting device according to an embodiment of the present application;

FIG6 is a schematic diagram of the bottom structure of the sling unit in the slinging device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of the transmission assembly in the lifting device according to an embodiment of the present application.

In the figure:

1. Hanger; 110. Longitudinal beam; 120. Horizontal beam; 130. Lifting rope; 140. Lifting plate; 150. Lifting hook;

2. Spreader unit; 210. Steel wire rope; 220. Hook; 230. Mounting plate; 240. Winding assembly; 241. Winding drum; 242. Pulley; 243. First through hole; 250. Plate frame; 260. Bottom plate; 270. Vertical plate;

3. First adjusting unit; 310. First driving assembly; 311. First motor; 312. First pulley; 313. Second pulley; 314. Third pulley; 315. First connecting rod; 316. Second connecting rod; 317. Transmission belt; 320. Moving assembly; 321. Moving plate; 322. Tooth plate; 323. Traveling gear; 324. Driving gear; 325. Driven gear; 326. Connecting shaft; 327. Bearing seat;

4. Second adjusting unit; 410. Transmission assembly; 411. Flower axis; 412. Disconnection piece; 4121. Slip ring; 4122. Spring; 4123. Fixing ring; 4124. Ball block; 4125. Ball groove; 4126. Limiting ring; 413. Worm; 414. Worm wheel; 415. First gear; 416. Second gear; 417. Second through hole; 420. Second driving assembly; 421. Motor seat; 422. Third gear; 423. Fourth gear; 424. Transmission flower axis; 425. Active bevel gear; 426. Driven bevel gear; 427. Transmission shaft; 428. Second motor.

Detailed ways

In order to make the technical solutions and advantages in the embodiments of the present application more clear, the exemplary embodiments of the present application are further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

FIG1 is a schematic diagram of the overall structure of a lifting device according to an embodiment of the present application;

FIG2 is a rear view schematic diagram of the lifting device according to an embodiment of the present application;

FIG3 is a schematic side view of the structure of the lifting device according to an embodiment of the present application;

FIG4 is a schematic diagram of the assembly structure of the lifting device according to an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a moving component in a hoisting device according to an embodiment of the present application;

FIG6 is a schematic diagram of the bottom structure of the sling unit in the slinging device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of the transmission assembly in the lifting device according to an embodiment of the present application.

As shown in FIGS. 1 to 7 , an embodiment of the present application provides a lifting device, comprising:

The hanger 1 includes at least two longitudinal beams 110 , and a transverse beam 120 is arranged between the longitudinal beams 110 ;

A plurality of sling units 2 are movably arranged below the hanger 1, a steel wire rope 210 is movably connected below the sling unit 2, and a hook 220 is fixedly connected below the steel wire rope 210;

A first adjustment unit 3 is provided on the hanger 1 and connected to the hanger unit 2, and can adjust the distance between the multiple hanger units 2 during operation;

The second adjustment unit 4 is disposed below the hanger 1 and is in transmission connection with the hanger unit 2 . When working, it can drive the hanger unit 2 to reel in the steel wire rope 210 .

In practice, two parallel longitudinal beams 110 are generally provided, and a cross beam 120 is fixedly provided between them. A sling unit 2 is provided at both ends of the longitudinal beam 110 in the extending direction, and the sling unit 2 includes two groups of left and right steel wire ropes 210 and a hook 220. During operation, the first adjustment unit 3 is used to adjust the spacing between the sling units 2 at both ends of the longitudinal beam 110 according to the size of the prefabricated parts to be hoisted and the spacing of the reserved lifting ears, so that the spacing between the slings is suitable for hoisting; after the hook 220 is connected to the lifting ear, the second adjustment unit 4 is started, and multiple groups of steel wire ropes 210 can be tightened synchronously. When replacing prefabricated parts of different specifications, the above steps can be followed for adjustment, and there is no need to use multiple slings in combination. The retraction and extension of the steel wire rope 210 are controlled by the second adjustment unit 4, making the adjustment more convenient and adaptable to the hoisting and use of different prefabricated components. The whole process is convenient and fast, and has high safety.

The embodiment of the present application provides a lifting device, wherein the first adjusting unit 3 comprises:

At least two moving components 320 are each arranged at the end of the longitudinal beam 110 , and the sling unit 2 is arranged below the moving components 320 ; when working, the moving components 320 can drive the sling unit 2 to move along the extending direction of the longitudinal beam 110 .

The first driving assembly 310 is disposed on one side of the longitudinal beam 110 and is in transmission connection with the moving assembly 320 ; when in operation, the moving assembly 320 can be driven to move along the extending direction of the longitudinal beam 110 .

In practice, in order to facilitate the combined use of the sling units 2 of the two sections of the longitudinal beam 110 and to facilitate the adjustment of the spacing between the sling units 2 to meet different lifting requirements, during operation, the first driving assembly 310 drives the moving assembly 320, and the moving assembly 320 drives the sling units 2 disposed thereunder to move closer to or farther from each other.

It is worth noting that the moving component 320 can be in the form of a toothed plate 322 or in the form of a hydraulic slide rail.

The embodiment of the present application provides a lifting device, wherein the moving assembly 320 includes a moving plate 321, a tooth plate 322, a traveling gear 323, a driving gear 324, a driven gear 325 and a connecting shaft 326;

The movable plate 321 has two ends movably connected to the ends of the longitudinal beam 110, and the movable plate 321 extends horizontally and is perpendicular to the longitudinal beam 110;

The tooth plate 322 is arranged on the longitudinal beam 110 and is consistent with the extending direction of the longitudinal beam 110;

The driving gear 324 is arranged in the bearing seats 327 at both ends of the moving plate 321, is coaxially fixedly connected with the traveling gear 323, and is meshedly connected with the driven gear 325, and the rotation direction is the same as the extension direction of the longitudinal beam 110;

The driven gear 325 is fixedly connected to the other end of the moving plate 321 via a connecting shaft 326 .

During implementation, the movable plate 321 is slidably sleeved on both ends of the longitudinal beam 110, and a hoisting device unit 2 is fixedly installed at the bottom of the movable plate 321. Bearing seats 327 are arranged at both lateral ends of the movable plate 321. A driving gear 324 is rotatably arranged inside the bearing seats 327. The driving gear 324 is transmission-connected to the first driving assembly 310. A traveling gear 323 is rotatably arranged outside the bearing seats 327 at both ends. The traveling gear 323 is coaxially and fixedly connected with the driving gear 324. A tooth plate 322 is meshedly arranged at the bottom of the traveling gear 323. The tooth plate 322 is fixedly arranged on the outside of the longitudinal beam 110. A driven gear 325 is rotatably arranged inside the bearing seats 327 at both ends, and is meshedly arranged on the top of the driving gear 324. The driven gear 325 located inside the bearing seats 327 at both ends is fixedly connected via a connecting shaft 326. When the first driving assembly 310 drives the driving gear 324 to drive the traveling gear 323 to rotate, the traveling gear 323 drives the movable plate 321 to move on the outside of the longitudinal beam 110 through the tooth plate 322, and at the same time, the driving gear 324 drives the driven gear 325 on the same side to rotate, so that the driven gear 325 drives the driven gear 325 at the other end of the movable plate 321 to rotate through the connecting shaft 326. At this time, the driven gear 325 at the other end drives the traveling gear 323 at the other end to rotate through the driving gear 324 at the other end, so that the traveling gears 323 at both ends of the movable plate 321 rotate synchronously, ensuring stable movement.

The embodiment of the present application provides a lifting device, wherein the first driving assembly 310 includes:

The first motor 311 is arranged at one side of the longitudinal beam 110, and the output end of the first motor 311 is coaxially fixedly connected with the first pulley 312;

The second pulley 313 is arranged outside the bearing seat 327 and is coaxially fixedly connected to the driving gear 324;

The third pulley 314 is disposed between the first pulley 312 and the second pulley 313 and is movably connected via the first connecting rod 315 and the second connecting rod 316;

The first pulley 312 , the second pulley 313 and the third pulley 314 are connected in transmission via a transmission belt 317 .

During implementation, in order to ensure that the two movable plates 321 at both ends of the longitudinal beam 110 move the same distance and to ensure that the longitudinal beam 110 is evenly stressed, the first driving assembly 310 includes a first motor 311 as a power source. The first motor 311 is fixedly arranged on one side of the longitudinal beam 110. A first pulley 312 is fixedly arranged on the driving end of the first motor 311. A first connecting rod 315 is rotatably arranged on the outer side of the first pulley 312. A second pulley 313 is arranged on the outer side of the bearing seat 327 and is coaxially fixedly connected to the driving gear 324. A second connecting rod 316 is rotatably arranged on the outer side of the second pulley 313. The other ends of the first connecting rod 315 and the second connecting rod 316 are rotatably connected by a third pulley 314. The first pulley 312 and the third pulley 314, as well as the second pulley 313 and the third pulley 314 are connected by a transmission belt 317. When it is necessary to drive the movable plate 321 to move, the first motor 311 drives the first pulley 312 to rotate, the first pulley 312 drives the third pulley 314 at the other end of the first connecting rod 315 to rotate through the transmission belt 317, the third pulley 314 drives the second pulley 313 at the other end of the second connecting rod 316 to rotate through the transmission belt 317, and the second pulley 313 drives the driving gear 324 in the movable assembly 320 to rotate, so that the driving gear 324 provides rotational force to the traveling gears 323 at both ends of the movable plate 321, driving the traveling gear 323 to rotate and move. The other side of the first pulley 312 is the same as the above-mentioned setting, so at the same time, the walking gear 323 on the moving plate 321 at the other end of the longitudinal beam 110 rotates at the same time and moves along the toothed plate 322, so that the two moving components 320 can achieve relative movement, and the moving component 320 will push the first connecting rod 315 and the second connecting rod 316 to fold on both sides of the first motor 311 to ensure that the first motor 311 is always linked with the driving gear 324 in the two moving components 320 to achieve the effect of synchronously driving the movement of the two moving components 320.

The embodiment of the present application provides a hoisting device, wherein the hoisting device unit 2 includes a mounting plate 230 and a winding assembly 240;

The mounting plate 230 is fixedly disposed below the movable plate 321, and a plate frame 250 is disposed at the end of the mounting plate 230;

The winding assembly 240 is rotatably disposed in the plate frame 250 and can wind up the steel wire rope 210 during operation.

In practice, the mounting plate 230 is fixedly disposed below the movable plate 321 , and the winding assembly 240 is disposed in a plate frame 250 at the end of the mounting plate 230 .

It is worth noting that the winding assembly 240 can be in the form of a winding drum 241 or in the form of a hinge.

The embodiment of the present application provides a hoisting device, wherein the winding assembly 240 comprises: a winding drum 241, a plurality of pulleys 242, and a plurality of first through holes 243 disposed on a plate frame 250;

The winding drum 241 is rotatably arranged in the plate frame 250, and the rotation axis of the winding drum 241 is perpendicular to the plane of the hanger 1;

The plurality of pulleys 242 are rotatably disposed outside the plate frame 250 , corresponding to the positions of the first through hole 243 and the winding drum 241 .

In practice, a first through hole 243 for passing the steel wire rope 210 is provided on the outer side of the plate frame 250, and pulleys 242 are rotatably arranged on both sides of the plate frame 250 to support the steel wire rope 210 in a triangular structure, and the axis of the pulley 242 is parallel to the moving direction of the moving assembly 320. Under the support of the pulley 242, the two steel wire ropes 210 in each group are both in a triangular structure to ensure the stability of the hoisting, and the plane where each group of steel wire ropes 210 is located is perpendicular to the longitudinal beam 110, so that the steel wire ropes 210 corresponding to the two moving assemblies 320 at both ends of the longitudinal beam 110 are parallel and symmetrical to each other, which is convenient for subsequent combined use.

The embodiment of the present application provides a lifting device, wherein the second adjusting unit 4 comprises:

The transmission assembly 410 is disposed below the hanger 1 and is in transmission connection with the hanger unit 2;

The second driving assembly 420 is disposed below the hanger 1 and connected to the transmission assembly 410;

During operation, the second driving assembly 420 drives the sling unit 2 to reel in the steel wire rope 210 through the transmission assembly 410 .

In practice, the second drive assembly 420 drives the winding drum 241 of the sling unit 2 through the transmission assembly 410, thereby winding up or releasing the wire rope 210. It is worth noting that the transmission assembly 410 and the second drive assembly 420 can adopt a transmission shaft 427 in combination with a gear, a chain in combination with a gear, or a belt in combination with a gear.

The embodiment of the present application provides a lifting device, wherein a transmission assembly 410 includes a flower shaft 411, a disconnecting member 412, a worm 413, a worm wheel 414, a first gear 415 and a second gear 416;

The flower shaft 411 passes through the second through hole 417 provided below the plate frame 250, one end of which is connected to the second driving assembly 420, and the other end of which is connected to the disconnecting member 412;

The disconnecting member 412 is connected to the worm 413; the worm 413 is meshingly connected to the worm wheel 414;

The first gear 415 is coaxially fixedly connected to the worm gear 414 , the second gear 416 is coaxially fixedly connected to the winding drum 241 , and the first gear 415 is meshingly connected to the second gear 416 .

During implementation, when the second drive assembly 420 drives the worm 413 to rotate through the flower shaft 411 and the disconnecting piece 412, the worm 413 drives the first gear 415 to rotate through the worm wheel 414, so that the first gear 415 drives the winding drum 241 to rotate inside the plate frame 250 through the second gear 416, thereby realizing the winding and releasing of the wire rope 210. When the wire rope 210 is tightened, the resistance of the worm 413 to drive the worm wheel 414 to rotate increases, so that the disconnecting piece 412 disconnects the linkage between the second drive assembly 420 and the worm 413. At this time, the worm 413 of the remaining sling units 2 continues to tighten the wire rope 210, and the disconnected worm 413 and worm wheel 414 have a self-locking effect, preventing the wire rope 210 from being loosened due to the downward pulling force that drives the winding drum 241 to rotate.

The embodiment of the present application provides a lifting device, wherein the disconnecting member 412 includes a slip ring 4121, a spring 4122 and a fixing ring 4132;

The slip ring 4121 is fixedly arranged at one end of the flower shaft 411 away from the second driving assembly 420, and a ball block 4124 is arranged in an annular array on one side of the slip ring 4121 away from the flower shaft 411;

The spring 4122 is sleeved on the flower shaft 411 and located between the through hole and the slip ring 4121;

The fixing ring 4132 is fixedly disposed at one end of the worm 413 . A ball groove 4125 is correspondingly provided on the fixing ring 4132 at one side close to the slip ring 4121 . The ball groove 4125 corresponds to the position of the ball block 4124 .

During implementation, the second drive assembly 420 includes a motor base 421 arranged on the cross beam 120, a second motor 428 arranged on the motor base 421, a third gear 422 arranged at the output end of the second motor 428, a transmission flower shaft 424 arranged below the longitudinal beam 110 and parallel to the longitudinal beam 110, a fourth gear 423 coaxially fixed on the transmission flower shaft 424, the fourth gear 423 is meshed with the third gear 422, a driving bevel gear 425 is arranged at both ends of the transmission flower shaft 424, a transmission shaft 427 is arranged below the mounting plate 230, a driven bevel gear 426 is arranged at one end of the transmission shaft 427, the driven gear 325 is meshed with the driving gear 324, and the other end passes through the second through hole 417 and is fixedly connected to the flower shaft 411. In order to achieve the linkage between the transmission component 410 and the second drive component 420 and the worm 413 being disconnected when the wire rope 210 is tightened, a limit ring 4126 is fixedly provided at the end of the flower shaft 411 away from the worm 413, and the flower shaft 411 is linked with the transmission shaft 427; a slip ring 4121 is fixedly provided at the other end of the flower shaft 411, and a ball block 4124 is provided in a ring array on the side of the slip ring 4121 close to the worm 413; a spring 4122 is provided on the outside of the flower shaft 411 and is located between the limit ring 4126 and the slip ring 4121; a fixing ring 4132 is fixedly provided at one end of the worm 413, and a ball groove 4125 is provided on the side of the fixing ring 4132 close to the slip ring 4121 corresponding to the position of the ball block 4124. Before the hook 220 is connected to the prefabricated component, the second motor 428 can drive the flower shaft 411 to rotate, so that the flower shaft 411 drives the outer slip ring 4121 to rotate. At this time, the spring 4122 squeezes the slip ring 4121 close to one side of the fixed ring 4132. When the ball block 4124 cooperates with the ball groove 4125, the slip ring 4121 can drive the fixed ring 4132 to rotate, so that the fixed ring 4132 drives the worm 413 to complete the retraction and release operation. When the wire rope 210 is subjected to the pulling force of the prefabricated component, the resistance to the rotation of the fixed ring 4132 increases. At this time, the slip ring 4121 will drive the ball block 4124 to be squeezed out from the inside of the ball groove 4125, so that the slip ring 4121 compresses the spring 4122, and then disconnects the linkage between the slip ring 4121 and the fixed ring 4132, so that the second motor 428 can be continuously operated. During the process, multiple groups of wire ropes 210 can be tightened separately, so that the wire rope 210 can adapt to the lifting requirements of different components.

During implementation, the active bevel gear 425 is rotatably set on one side of the vertical plate 270, and the vertical plate 270 is fixedly set at the bottom of the mounting plate 230; a transmission shaft 427 is coaxially fixedly set at one end of the flower axis 411 away from the slip ring 4121, and the other end of the transmission shaft 427 is linked with the active bevel gear 425; the transmission shaft 427 is rotatably set at the bottom of the plate frame 250 through the vertical plate 270, and a driven bevel gear 426 is fixedly set at one end of the transmission shaft 427 away from the flower axis 411, and the driven bevel gear 426 is meshed and set on the outside of the active bevel gear 425, and the distance between the two vertical plates 270 is greater than the width of the second motor 428. When the second motor 428 is running, it drives the third gear 422 to rotate, and the third gear 422 drives the transmission flower shaft 424 to rotate through the fourth gear 423, so that the transmission flower shaft 424 drives the outer active bevel gear 425 to rotate, and the active bevel gear 425 synchronously drives the two outer driven bevel gears 426 to rotate, so that the driven bevel gear 426 drives the flower shaft 411 to rotate through the transmission shaft 427. When the moving assembly 320 drives the hanger unit 2 to move and adjust, the vertical plate 270 drives the active bevel gear 425 to slide on the outside of the transmission flower shaft 424, so that the second motor 428 always keeps linkage with the active bevel gear 425; and when the hanger units 2 are close to each other on both sides of the second motor 428, the second motor 428 can be stored between the vertical plates 270 on one side, reducing the space occupied between the two hanger units 2, so that the two hangers fit closely.

During the implementation, the hanger 1 also includes a hanger plate 140, and hanger ropes 130 of equal length are fixedly arranged at the four corners of the hanger plate 140. The other ends of the hanger ropes 130 are fixedly connected to the ends of the longitudinal beam 110, and a hook 150 is fixedly arranged on the top of the hanger plate 140. When the hook 150 is connected to the lifting equipment, the hanger plate 140 and the longitudinal beam 110 are connected by four hanger ropes 130 of equal length to ensure the overall stability of the hanger 1. The sling units 2 are symmetrically arranged at the bottom of the longitudinal beam 110. Each sling unit 2 contains two groups of steel wire ropes 210 and carries a total of four hooks 220, which can meet the hoisting operations of four hanging points, such as floor slabs, stairs, etc. When two hangers are embedded in the prefabricated part, two hooks 220 with the same direction on the same side can be used in combination. In order to facilitate each group of steel wire ropes 210 to be in a taut state, before use, the winding drum 241 is driven by the second motor 428 to wind up all the steel wire ropes 210, and then all the hooks 220 are synchronously lowered. After the hooks 220 are connected to the prefabricated part, they are connected by the first The second motor 428 drives the winding drum 241 to tighten the wire rope 210. At this time, the wire rope 210 in a tensioned state increases the rotational resistance of the winding drum 241, making it impossible for the second motor 428 to continue to drive the tightened wire rope 210 to be wound up, and so on. After all the wire ropes 210 are tightened, they can adapt to the corresponding prefabricated component lifting. When the prefabricated component is replaced, it can be adjusted according to the above steps. There is no need to use multiple hoisting devices in combination, and the wire rope 210 is retracted and released by a point motor, which makes the adjustment more convenient and can adapt to the lifting of different prefabricated components.

An embodiment of the present application provides a hoisting method, using any of the hoisting devices described above, comprising the following steps:

Place the object to be hoisted under the hoisting device;

Start the first adjustment unit 3 to adjust the spreader unit 2 to a suitable spacing;

Start the second adjustment unit 4 to tighten the steel wire rope 210;

When replacing the hoisting object, the plurality of hooks 220 on the hoisting device are combined according to the reserved hoisting ears of different hoisting objects.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "horizontal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side", "end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "engage", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (10)

1. A lifting device, comprising:

the hanger comprises at least two longitudinal beams, and a cross beam is arranged between the longitudinal beams;

The lifting device comprises a plurality of lifting device units, a plurality of hanging hooks and a plurality of hanging rods, wherein the lifting device units are movably arranged below the lifting device units, the lower parts of the lifting device units are movably connected with steel wire ropes, and the lower parts of the steel wire ropes are fixedly connected with the hanging hooks;

the first adjusting unit is arranged on the hanging frame and connected with the hanging tool units, and the space between the hanging tool units can be adjusted during operation;

The second adjusting unit is arranged below the hanging frame and in transmission connection with the hanging device unit, and can drive the hanging device unit to wind up the steel wire rope during operation.

2. Hoisting device as claimed in claim 1, characterized in that the first adjusting unit comprises:

the at least two moving assemblies are respectively arranged at the end parts of the longitudinal beams, and the lifting appliance units are arranged below the moving assemblies; when the lifting device works, the moving assembly can drive the lifting device unit to move along the extending direction of the longitudinal beam.

The first driving assembly is arranged on one side of the longitudinal beam and is in transmission connection with the moving assembly; the movable assembly can be driven to move along the extending direction of the longitudinal beam during operation.

3. The lifting device of claim 2, wherein the moving assembly comprises a moving plate, a toothed plate, a traveling gear, a driving gear, a driven gear, and a connecting shaft;

the two ends of the movable plate are movably sleeved with the end parts of the longitudinal beams, and the movable plate transversely extends and is perpendicular to the longitudinal beams;

The toothed plate is arranged on the longitudinal beam and is consistent with the extending direction of the longitudinal beam;

the driving gear is arranged in bearing seats at two ends of the moving plate, is coaxially and fixedly connected with the walking gear, is meshed with the driven gear, and has the same rotation direction as the extension direction of the longitudinal beam;

The driven gear is fixedly connected with the driven gear at the other end of the moving plate through a connecting shaft.

4. A lifting device according to claim 3, wherein the first drive assembly comprises:

the first motor is arranged on one side of the longitudinal beam, and the output end of the first motor is coaxially and fixedly connected with the first belt pulley;

the second belt wheel is arranged outside the bearing seat and is fixedly connected with the driving gear in a coaxial way;

the third belt pulley is arranged between the first belt pulley and the second belt pulley and is connected with the second connecting rod through a first connecting rod movable shaft;

the first belt pulley, the second belt pulley and the third belt pulley are in transmission connection through a transmission belt.

5. The lifting device of claim 4, wherein the lifting device unit comprises a mounting plate and a winding assembly;

the mounting plate is fixedly arranged below the moving plate, and a plate frame is arranged at the end part of the mounting plate;

The winding component is rotatably arranged in the plate frame, and can wind the steel wire rope during working.

6. The lifting device of claim 5, wherein the winding assembly comprises: the winding drum, the pulleys and the first through holes are formed in the plate frame;

the winding drum is rotatably arranged in the plate frame, and the rotating shaft of the winding drum is perpendicular to the plane of the hanging bracket;

The pulleys are rotatably arranged on the outer side of the plate frame and correspond to the first through holes and the winding cylinders in position.

7. The lifting device of claim 6, wherein the second adjusting unit comprises:

the transmission assembly is arranged below the hanging bracket and is in transmission connection with the hanging bracket unit;

the second driving assembly is arranged below the hanging bracket and is connected with the transmission assembly;

And the second driving assembly drives the lifting appliance unit to wind the steel wire rope through the transmission assembly during working.

8. The lifting device of claim 7, wherein the transmission assembly comprises a quill, a break, a worm gear, a first gear, and a second gear;

The flower shaft penetrates through a second through hole arranged below the plate frame, one end of the flower shaft is connected with the second driving assembly, and the other end of the flower shaft is connected with the disconnecting piece;

the disconnecting piece is connected with the worm; the worm is in meshing connection with the worm wheel;

The first gear is fixedly connected with the worm gear coaxially, the second gear is fixedly connected with the winding drum coaxially, and the first gear is meshed with the second gear.

9. The hoisting device of claim 8 wherein the disconnect comprises a slip ring, a spring, and a fixed ring;

The slip ring is fixedly arranged at one end, far away from the second driving assembly, of the flower shaft, and spherical blocks are arranged on one side, far away from the flower shaft, of the slip ring in an annular array manner;

The spring is sleeved on the flower shaft and is positioned between the through hole and the slip ring;

The fixed ring is fixedly arranged at one end of the worm, a ball groove is correspondingly formed in one side, close to the slip ring, of the fixed ring, and the ball groove corresponds to the ball block in position.

10. Hoisting method, characterized in that it uses a hoisting device according to any one of claims 1-9, comprising the steps of:

placing an object to be hoisted below a hoisting device;

Starting the first adjusting unit to adjust the lifting appliance unit to a proper interval;

Starting the second adjusting unit to tighten the steel wire rope;

When the hoisted objects are replaced, lifting lugs are reserved according to different hoisted objects, and a plurality of hooks on the hoisting device are combined.