Lifting device for construction engineering

Abstract

The invention provides a hoisting device for construction engineering, and belongs to the technical field of hoisting equipment, the hoisting device comprises a frame body, a hoisting mechanism and a clamping mechanism, the clamping mechanism comprises a hanging bracket and a clamping assembly, the hanging bracket is connected with the hoisting mechanism, the clamping assembly is arranged on the hanging bracket, and the clamping assembly comprises a first motor, a bidirectional screw rod, a synchronous pulley mechanism and a moving block; the first motor is fixedly installed on the hanging bracket, the two-way lead screws are symmetrically arranged on the two sides of the first motor and connected to the output end of the first motor through synchronous belt wheel mechanisms, the moving blocks are provided with threaded holes and sliding grooves, the two ends, in different rotating directions, of the two-way lead screws are connected with the moving blocks in a rotating mode through the threaded holes respectively, and the moving blocks are arranged on the hanging bracket in a sliding mode. When the hoisting device is used, inclination and movement of a heavy object in the hoisting process are reduced, the efficiency and safety of the whole process are improved, through the four steel ropes in the winch system, the heavy object can be more stable in the moving process, stress of each steel rope is reduced, and the service life of the steel ropes is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting equipment, and in particular relates to a lifting device for construction engineering. Background Art

[0002] The lifting equipment for construction engineering construction starts a vertical or vertical and horizontal working stroke after picking up materials, unloads after reaching the destination, and then travels empty to the material picking location to complete a working cycle, and then performs a second lifting or transportation. Gantry cranes are usually used for operations in construction engineering construction.

[0003] The existing gantry crane puts the hook on the truss and then lifts and moves it. According to different weights, different numbers of hooks are used to hang and lift the weights. When hoisted by the hooks, the weights will shake due to inertia during the movement, making the movement process unstable and prone to safety problems. In addition, for different weights, the position of the hooks needs to be manually fixed to ensure that the hoisting is on the balance point of the weight and reduce the tilt of the weight, which affects the lifting speed. For this reason, we propose a safe lifting equipment for construction engineering construction, which reduces shaking during the hoisting process, improves safety, and can more conveniently lift different weights. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a lifting device for construction projects, which is used to solve the technical problems in the prior art that the balance points of different weights need to be determined manually, which is inefficient, and the hook is unstable and easy to shake during the lifting and moving process.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a lifting device for construction engineering, comprising: frame; A hoisting mechanism, the hoisting mechanism being movably arranged above the frame through a movable assembly; The clamping mechanism is used to clamp heavy objects. The clamping mechanism is connected to the hoisting mechanism. The invention comprises: a hanger and a clamping assembly, the hanger is connected to the hoisting mechanism, the clamping assembly is arranged on the hanger, the clamping assembly includes a driving part and a clamping part, the driving part includes a first motor, a bidirectional screw rod, a synchronous pulley mechanism and a moving block, the first motor is fixedly mounted on the hanger, the bidirectional screw rod is horizontally rotated on the hanger through the mounting block, and is symmetrically arranged on both sides of the first motor, the two bidirectional screw rods are connected to the output end of the first motor through the synchronous pulley mechanism, the moving block has a threaded hole and a slide groove, and the two ends of the bidirectional screw rod with different rotation directions are respectively connected through threaded holes The moving block is screwed on, and when the bidirectional screw rod rotates, the moving blocks move closer to or away from each other, and the moving block is slidably arranged on the hanger through the slide groove, and the clamping part is arranged on the moving block, and the clamping part includes an electric telescopic rod and a clamping claw, and the clamping claws are arranged in pairs and are rotatably installed under the moving block at both ends of the same bidirectional screw rod through a first hinge seat. A connecting plate is provided on the side of the moving block away from the first motor, and the two ends of the electric telescopic rod are rotatably connected to the connecting plate and the clamping claws through a second hinge seat, and the clamping claws are staggered when in the clamping state.

[0006] In this way, for heavy objects of different sizes, the first motor drives the moving blocks to move closer or farther away from each other, and the position of the clamping claws can be adjusted so that the clamping claws can better clamp the heavy object when driven by the electric telescopic rod. After the heavy object is lifted by the winch mechanism, the heavy object can be effectively prevented from falling off the clamping claws due to its own gravity and the thrust of the electric telescopic rod. By using two pairs of clamping claws, the heavy object can be better lifted, the deviation or tilt of the heavy object can be reduced, and the safety is improved.

[0007] Optionally, the hoisting mechanism includes a base, a hoisting motor, a reducer with dual output shafts, a drum, and a steel rope. The base is arranged on the moving assembly, the hoisting motor and the reducer are fixedly mounted on the base and symmetrically arranged, the output shaft of the hoisting motor is connected to the reducer, and the two output shafts of the reducer are respectively connected to different drums, the drums rotate and are symmetrically arranged on the base, one end of the steel rope is fixedly connected to the drum, and after being wound around the drum for several turns, the other end is connected to the hanger. A hoisting mechanism with four drums is provided with four steel ropes. The coordination between the steel ropes reduces the load on each steel rope, thereby increasing its practical lifespan. At the same time, the heavy object is made more stable during movement, shaking is reduced, and safety is improved.

[0008] Optionally, the frame includes a main beam, an end beam, a support beam and a lower cross beam, two main beams are arranged in parallel, two end beams are fixedly arranged at both ends of the main beam, the lower cross beam and the end beam are arranged in parallel and are located below the outer side of the end beam, the upper end of the support beam is fixedly installed below the end of the main beam, and the lower end is fixedly installed on the lower cross beam.

[0009] Optionally, the moving assembly includes a moving frame, a roller frame, a roller, a second motor, and a screw. The roller frame is fixedly mounted below the moving frame and symmetrically arranged. The roller is linearly mounted on the roller frame along the length direction of the main beam. The moving frame moves above the two main beams via the roller and the roller frame. The second motor is fixedly mounted on the end beams. The screw is rotatably mounted above the two end beams via a mounting seat. The output end of the second motor and one end of the screw have mutually meshing gears. A connecting block is fixedly mounted on the moving frame. The connecting block has a threaded hole for screwing to the screw and is screwed to the screw through the threaded hole. The moving assembly is used to move the heavy object laterally.

[0010] Optionally, mounting slots are provided below both ends of the lower crossbeam, and movable wheels are rotatably mounted through the mounting slots. A driving motor is also fixedly mounted on the lower crossbeam, and an output end of the driving motor is connected to the movable wheels. The driving motor facilitates the movement of the device.

[0011] Optionally, the hanger is welded from a number of brackets and is arranged in a square shape. The movable block is slidably arranged on the bracket of the hanger through the slide groove. Connecting seats are provided at the four corners of the hanger. The connecting seats are rotatably provided with lifting rings, and the steel rope is sleeved on the lifting rings.

[0012] Optionally, the main beam is provided with limit bars, which are symmetrically arranged on both sides of the roller along the length direction of the main beam. The limit bars enable the movable frame to maintain linear movement in the length direction of the main beam.

[0013] Optionally, a hook is rotatably provided at the center of gravity of the hanger. On the one hand, when the clamping claw is inconvenient to use, the hook can be selected for lifting. On the other hand, the clamping claw and the hook can simultaneously mount and clamp the heavy object, further improving safety.

[0014] Optionally, a counterweight is provided on the hanger to balance the weight of the first motor on the hanger, so that the force on the hanger is more uniform.

[0015] The beneficial effects of the present invention are: The clamping mechanism can facilitate the lifting of heavy objects of different sizes, reduce the tilting and movement of the heavy objects during the lifting process, and improve the efficiency and safety of the entire process. Through the four steel ropes in the hoisting system, the heavy objects can be moved more stably, and the force on each steel rope is reduced, thereby increasing the service life of the steel ropes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of another aspect of the present invention.

[0018] Figure 3 Display as Figure 1 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 4 Display as Figure 2 A partial enlarged schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] See also Figures 1 to 4 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0022] like Figure 1-4As shown, a lifting device for construction engineering includes: a frame 1, the frame includes a main beam 101, an end beam 102, a support beam 103 and a lower cross beam 104, two main beams 101 are arranged in parallel, two end beams 102 are arranged in parallel, and are fixedly arranged at both ends of the main beam 101, the lower cross beam 104 and the end beam 102 are arranged in parallel, and are located below the outer side of the end beam 102, the upper end of the support beam 103 is fixedly installed below the end of the main beam 101, and the lower end is fixedly installed on the lower cross beam 104, and mounting grooves 105 are respectively provided below the two ends of the lower cross beam 104, and moving wheels 106 are rotatably installed in the mounting grooves 105, and a driving motor 107 is fixedly installed on the lower cross beam 104, and the output end of the driving motor 107 is connected to the moving wheel 106, and the driving motor 107 can drive the moving wheel 106 to move, thereby moving the entire frame 1.

[0023] In this embodiment, a ladder 108 is provided on the support beam 103, and an inspection platform 109 is provided on the main beam.

[0024] Specifically, fences or safety nets are provided outside the ladder 108 and the maintenance platform 109 to prevent workers from falling.

[0025] In this embodiment, a moving assembly 2 is provided on the frame 1, and the moving assembly 2 includes a moving frame 201, a roller frame 202, a roller 203, a second motor 204 and a screw 205. The roller frame 202 is symmetrically provided below the moving frame 201, and a plurality of rollers 203 are linearly provided on the roller frame 202 along the length direction of the main beam 101. The rollers 203 are rollingly provided above the main beam 101, and the moving frame 201 moves above the main beam 101 through the rollers 203. A mounting seat 206 is fixedly provided on each of the two end beams 102, and a rolling bearing is fixedly installed in the mounting seat 206. The screw 205 is passed through The second motor 204 is fixedly mounted on one of the end beams 102, and the output end of the second motor 204 and one end of the screw 205 are matched through two mutually meshing gears 207. The lower end of the movable frame 201 is fixedly provided with a connecting block 208, and the connecting block 208 has a threaded hole. The screw 205 is screwed into the threaded hole of the connecting block 208. After the second motor 204 is started, the screw 205 is driven to rotate through the gear 207, so that the movable frame 201 moves on the frame body 1 through the roller 203.

[0026] Specifically, the main beam 101 is provided with a limit bar 108, which is symmetrically arranged on both sides of the roller 203 along the length direction of the main beam 101. The limit bar enables the movable frame to maintain linear movement in the length direction of the main beam.

[0027] In this embodiment, a hoisting mechanism 3 is provided on the movable frame 201, and the hoisting mechanism 3 includes a base 301, a hoisting motor 302, a reducer 303 with dual output shafts, a drum 304 and a steel rope 305. The base 301 is fixedly installed on the movable frame 201, and there are two hoisting motors 302 and reducers 303, which are fixedly and symmetrically installed on the base 301. There are four drums 304, which are rotatably installed on the base 301. The four drums 304 are respectively connected to the four output shafts of the two reducers 303. After the hoisting motor 302 is started, the reducer 303 can drive the drum 304 to rotate. One end of the steel rope 305 is fixedly connected to the drum 304, and the other end is connected to the clamping mechanism 4 after being wound several times.

[0028] In this embodiment, the clamping mechanism 4 includes a hanger 410 and a clamping assembly 420 for clamping and securing a heavy object. The hanger 410 comprises an outer frame 411 formed by welding four steel bars in a square shape, and an inner support frame 412 formed by welding a plurality of parallel or perpendicular steel bars. Connecting bases 413 are fixedly mounted at the four corners of the upper end of the hanger 410. The connecting bases have lifting rings 414, and the four steel ropes 305 are fixedly connected to different lifting rings 414. The clamping assembly 420 is arranged on the hanger 410, and the clamping assembly includes a driving part and a clamping part. The driving part includes a first motor 421, a bidirectional screw rod 422 with opposite thread rotation directions at both ends, a synchronous pulley mechanism 423 and a moving block 424. The two ends of the bidirectional screw rod 422 are respectively rotatably installed with mounting blocks 425 through rolling bearings. The mounting blocks 425 are fixedly installed on the outer frame 411. Two bidirectional screw rods 422 are symmetrically and parallelly arranged and are arranged above the outer frame 411. The moving block 424 has a slide groove 426 and a threaded hole, which is screwed to the bidirectional screw rod 422 through the threaded hole and slidably connected to the outer frame 411 through the slide groove 426. A moving block 424 is screwed to each end of the bidirectional screw rod 422. When the bidirectional screw rod 422 rotates, the moving block 424 is simultaneously moved closer or farther away. The first motor 421 is fixedly mounted on the inner support frame 412 of the hanger 410 and is located between the two bidirectional screw rods 422. The output end of the first motor 421 is connected to the two bidirectional screw rods 422 through two synchronous pulley mechanisms 423. When the first motor 421 is started, the bidirectional screw rods 422 can be rotated at the same time, thereby driving the moving blocks 424 on the same bidirectional screw rod 422 to move closer to or away from each other.

[0029] In this embodiment, the clamping part is arranged on the moving block 424, and the clamping part includes a clamping claw 427 and an electric telescopic rod 428. The clamping claws 427 are arranged in pairs and are respectively arranged under the moving block 424 at both ends of the same bidirectional screw rod 422. The clamping claw 422 and the moving block 424 are connected by a first hinge seat 429. A connecting plate 430 is also welded to one side under the moving block 424. A second hinge seat 431 is provided at both ends of the electric telescopic rod 428, and is rotatably connected to the connecting plate 430 and the clamping claw 427 through the second hinge seat 431. The extension or shortening of the electric telescopic rod 428 can make the two clamping claws 427 under the same bidirectional screw rod 422 be in a clamping state or a release state, thereby clamping or releasing the heavy object.

[0030] Specifically, the first hinge seat and the second hinge seat are both composed of two fixed seats and a rotating shaft.

[0031] Specifically, the clamping jaws 427 are arranged in an L-shape. The two clamping jaws 427 below the same bidirectional screw rod 422 are staggered and interlocked in the clamping state to enhance clamping stability. The adjacent sides are provided with arcuate surfaces 432, and the ends below the arcuate surfaces 432 are provided with upwardly directed arcuate protrusions 433. The staggered arrangement can better clamp and secure heavy objects. The arcuate surfaces can better clamp and secure cylindrical heavy objects, and the arcuate protrusions can prevent the heavy objects from falling off.

[0032] In this embodiment, the inner support frame 412 is further provided with a hook 415, which is located at the center of gravity of the hanger 410 and is rotatable. The hook allows, on the one hand, to use the hook when the clamping jaws are inconvenient to use, and on the other hand, the clamping jaws and the hook simultaneously mount and clamp the heavy object, further improving safety.

[0033] In this embodiment, a counterweight block 416 is fixedly provided on the inner support frame 412, and the weight of the first motor on the hanger is balanced by the counterweight block, so that the force on the hanger is more uniform.

[0034] Working principle: When implementing the present invention, two bidirectional screws can be driven to rotate by a first motor according to the width or diameter of the weight. The rotation of the bidirectional screw drives the moving frame to move, changing the distance between the moving blocks, so that the clamps connected below the moving blocks can better clamp the weight. The two pairs of clamps with a certain distance can better carry the weight, prevent the weight from tilting, and reduce the risk of the weight falling during movement. In addition, the hook and the clamp act as a double insurance, which can effectively mount and clamp the weight and improve safety performance. By setting up 4 drums and steel ropes for lifting, the gravity on each steel rope is dispersed, and the service life of the steel rope is increased. The uniform distribution of the steel ropes can make the hanger more stable during the lifting process, reduce the shaking of the hanger, and improve the safety of the lifting process.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A lifting device for construction engineering, characterized in that: include: frame; A hoisting mechanism, the hoisting mechanism being movably arranged above the frame through a movable assembly; 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod.

2. A lifting device for construction engineering according to claim 1, characterized in that: The clamping part includes an electric telescopic rod and clamping claws, which are arranged in pairs and are rotatably installed under the moving blocks at both ends of the same bidirectional screw through a first hinge seat. A connecting plate is provided on the side of the moving block away from the first motor. The two ends of the electric telescopic rod are rotatably connected to the connecting plate and the clamping claws through a second hinge seat. The clamping claws are staggered in the clamping state.

3. A lifting device for construction engineering according to claim 1, characterized in that: The hoisting mechanism includes a base, a hoisting motor, a reducer with dual output shafts, a drum and a steel rope. The base is arranged on the moving component. The hoisting motor and the reducer are fixedly mounted on the base and symmetrically arranged. The output shaft of the hoisting motor is connected to the reducer. The two output shafts of the reducer are respectively connected to different drums. The drum rotates and is symmetrically arranged on the base. One end of the steel rope is fixedly connected to the drum, and after being wound around the drum for several turns, the other end is connected to the hanger.

4. A construction lifting device according to any one of claims 1 to 3, characterized in that: The frame includes a main beam, an end beam, a support beam and a lower cross beam. There are two main beams arranged in parallel, and there are two end beams, which are fixedly arranged at both ends of the main beam. The lower cross beam and the end beam are arranged in parallel and are located below the outer side of the end beam. The upper end of the support beam is fixedly installed below the end of the main beam, and the lower end is fixedly installed on the lower cross beam.

5. A lifting device for construction engineering according to claim 3, characterized in that: The movable assembly includes a movable frame, a roller frame, a roller, a second motor and a screw. The roller frame is fixedly mounted below the movable frame and is symmetrically arranged. The roller is linearly mounted on the roller frame along the length direction of the main beam. The movable frame moves above the two main beams through the roller and the roller frame. The second motor is fixedly mounted on the end beam. The screw is rotatably mounted above the two end beams through a mounting seat. The output end of the second motor and one end of the screw have mutually meshing gears. A connecting block is fixedly mounted on the movable frame. The connecting block has a threaded hole that is screwed to the screw and is screwed to the screw through the threaded hole. The base is fixedly mounted on the movable frame.

6. A lifting device for construction engineering according to claim 3, characterized in that: Mounting slots are provided below both ends of the lower cross beam, and moving wheels are rotatably mounted through the mounting slots. A driving motor is also fixedly mounted on the lower cross beam, and an output end of the driving motor is connected to the moving wheels.

7. A lifting device for construction engineering according to claim 2, characterized in that: The hanger is welded from a number of brackets and is arranged in a square shape. The moving block is slidably arranged on the bracket of the hanger through the slide groove. Connecting seats are provided at the four corners of the hanger. The connecting seats are rotatably provided with lifting rings, and the steel rope is sleeved on the lifting rings.

8. A lifting device for construction engineering according to claim 4, characterized in that: The main beam is provided with a limit strip, and the limit strip is symmetrically arranged on both sides of the roller along the length direction of the main beam.

9. The lifting device for construction engineering according to claim 2, characterized in that: A hook is rotatably provided at the center of gravity of the hanger.

10. The lifting device for construction engineering according to claim 1, characterized in that: A counterweight is provided on the hanger.

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