Stable hoisting equipment for municipal construction engineering

Abstract

The invention relates to the technical field of hoisting, in particular to stable hoisting equipment for municipal construction engineering, which comprises a hoisting mechanism, the hoisting mechanism comprises a fixed disc, a rotating plate is rotatably arranged in the fixed disc, an electric hoist is fixedly arranged on the lower side surface of the rotating plate, and the electric hoist is provided with a winding drum; the axis of the winding drum extends in the left-right direction, two steel wire ropes are wound on the winding drum, each steel wire rope is provided with a front end portion located on the front side of the winding drum and a rear end portion located on the rear side of the winding drum, and the front end portions and the rear end portions are not located on the same horizontal plane. The front end part and the rear end part of the steel wire rope are respectively used for hoisting two ends of the cuboid weight in the length direction; when the cuboid heavy object is subjected to wind in the left-right direction, the cuboid heavy object can rotate to the downwind position and drive the rotating plate to rotate at the same time, rotation of the rotating plate can drive the winding drum to rotate, the front ends and the rear ends of the two steel wire ropes are located on the same horizontal plane, and shaking of the cuboid heavy object can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, and in particular to a stable hoisting device for municipal construction engineering. Background Art

[0002] In municipal construction projects, lifting equipment is usually required, such as a crane, with a lifting sling connected to the crane's boom to lift heavy objects. However, when the existing lifting sling is used to lift objects, the heavy objects are easily shaken by the wind, which affects the safety of the lifting and poses a potential safety hazard. Summary of the invention

[0003] Based on this, it is necessary to provide a stable lifting equipment for municipal construction projects to address the technical problem that heavy objects are prone to shaking during operation in current lifting equipment.

[0004] The above purpose is achieved through the following technical solutions: A stable hoisting device for municipal construction engineering is used for hoisting a rectangular heavy object, comprising a hoisting mechanism, the hoisting mechanism comprising a fixed plate, the axis of the fixed plate extending in the up-down direction, a rotating plate rotating around the axis of the fixed plate provided in the fixed plate, an electric hoist fixedly provided on the lower side of the rotating plate, an opening provided at the bottom of the fixed plate, the electric hoist extending downward from the opening, the electric hoist having a drum, the axis of the drum extending in the left-right direction, two steel wire ropes wound on the drum, the two steel wire ropes being symmetrically arranged on the left-right direction, each steel wire rope having a front end portion located at the front side of the drum and a rear end portion located at the rear side of the drum, the front end portion and the rear end portion are not in the same horizontal plane, the front end portion and the rear end portion of the steel wire rope are hoisted at two ends of the length direction of the rectangular heavy object respectively; when the rectangular heavy object is subjected to wind in the left-right direction, the rectangular heavy object will rotate to a position where its length direction is parallel to the direction of the wind, and at the same time drive the rotating plate to rotate, the rotation of the rotating plate can drive the drum to rotate, so that the front end portions and the rear end portions of the two steel wire ropes are in the same horizontal plane.

[0005] Furthermore, the electric hoist has a rotating groove inside, the rotating plate is located in the rotating groove, and multiple universal wheels are provided on the upper and lower sides of the rotating plate, one of the universal wheels is provided with a speed sensor, and the speed sensor is used to detect the rotation speed of the rotating plate.

[0006] Furthermore, the electric hoist has a motor, and the motor is used to drive the drum to rotate. The speed sensor is connected to a controller, and the controller can control the rotation of the motor.

[0007] Furthermore, the greater the rotation speed of the rotating plate detected by the speed sensor, the greater the rotation speed of the reel driven by the controller.

[0008] Furthermore, the front and rear ends of the steel wire rope are provided with connecting hooks, the connecting hooks are provided with locking buckles, and the four corners of the upper side of the rectangular weight are respectively provided with snap rings, and the locking buckles are locked with the snap rings.

[0009] Furthermore, an annular fixing plate is detachably connected to the bottom of the fixing disk, and the opening is arranged on the annular fixing plate.

[0010] Furthermore, the annular fixing plate is fixed on the fixing disk by bolts.

[0011] Furthermore, the universal wheels are evenly distributed around the circumference of the rotating plate.

[0012] Furthermore, a partition plate is fixedly provided on the drum, and the partition plate separates the two steel wire ropes.

[0013] Furthermore, it also includes a crane, which has a telescopic boom, a plurality of connecting rings are provided on the top of the fixed plate, a fixing joint is provided on the telescopic boom, and the connecting ring is connected to the fixing joint by a connecting rope.

[0014] The beneficial effects of the present invention are: The stable lifting equipment for municipal construction projects provided by the present invention has a front end portion and a rear end portion of the steel wire rope that are not in the same horizontal plane. Therefore, when lifting a rectangular heavy object, the volume of the rectangular heavy object on the front and rear sides of the drum axis is different, and thus the wind-receiving areas of the rectangular heavy object on the front and rear sides of the drum are different. When subjected to wind along the drum axis, the force on the rectangular heavy object on the front and rear sides of the drum is unbalanced, making it easy for the rectangular heavy object to rotate, thereby preventing the rectangular heavy object from shaking and improving the lifting stability.

[0015] Secondly, after the rectangular weight rotates, the rotating plate will drive the drum to rotate, so that the front and rear ends of the two steel ropes are in the same horizontal plane, and the front and rear sides of the rectangular weight are exposed to the same wind area, thereby achieving force balance. The rectangular weight will automatically stop rotating. At this time, the rectangular weight rotates to a position where its length is parallel to the wind direction, that is, the downwind position. In this way, the wind-exposed area of ​​the rectangular weight is minimized, which can reduce the amplitude of shaking and further improve the lifting stability. At the same time, it can reduce the friction between the connecting ring and the fixed joint, thereby extending the service life of the stable lifting equipment used in municipal construction projects.

[0016] Third, the greater the wind force, the greater the speed of the drum, and the faster the front and rear ends of the wire rope are adjusted to the same horizontal plane, so that the rectangular heavy object can be adjusted to a force balance state as soon as possible, which can adapt to wind forces of different sizes and improve lifting stability.

[0017] Fourth, both ends of the wire rope are connected to the rectangular heavy object. Compared with setting up four wire ropes, the number of wire ropes is reduced, avoiding the different tensile coefficients of each wire rope, which may cause the rectangular heavy object to be unable to be in a horizontal state, thereby ensuring smooth lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a stable lifting device for a municipal construction project provided by an embodiment of the present invention; Figure 2 A bottom view of a hoisting mechanism in a stable hoisting device for a municipal construction project provided by an embodiment of the present invention; Figure 3 A first angle side view of a hoisting mechanism in a stable hoisting device for a municipal construction project provided by an embodiment of the present invention; Figure 4 for Figure 3 Middle AA section view; Figure 5 A second angle side view of a hoisting mechanism in a stable hoisting device for municipal construction engineering provided by an embodiment of the present invention; Figure 6 for Figure 5 Middle BB section view.

[0019] in: 100, crane; 101, telescopic arm; 102, fixed joint; 200, fixed plate; 201, annular fixed plate; 202, bolt; 203, connecting ring; 210, electric hoist; 211, wire rope; 212, connecting hook; 220. Rotating plate; 221. Universal wheel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] like Figures 1 to 6As shown, a stable lifting device for municipal construction engineering provided by an embodiment of the present invention is used for lifting a rectangular heavy object (not shown in the figure), including a lifting mechanism, the lifting mechanism including a fixed plate 200, the axis of the fixed plate 200 extending in the up-down direction, a rotating plate 220 rotating around the axis of the fixed plate 200 is provided in the fixed plate 200, an electric hoist 210 is fixedly provided on the lower side of the rotating plate 220, an opening is provided at the bottom of the fixed plate 200, the electric hoist 210 extends downward from the opening, and the electric hoist 210 has a drum, the axis of the drum extending in the left-right direction , two steel wire ropes 211 are wound around the drum, and the two steel wire ropes 211 are arranged symmetrically on the left and right sides. Each steel wire rope 211 has a front end located at the front side of the drum and a rear end located at the rear side of the drum. The front end and the rear end are not in the same horizontal plane. The front end and the rear end of the steel wire rope 211 are respectively hoisted at both ends of the length direction of the rectangular heavy object; when the rectangular heavy object is subjected to wind along the left and right directions, the rectangular heavy object will rotate to the downwind position, and at the same time drive the rotating plate 220 to rotate. The rotation of the rotating plate 220 can drive the drum to rotate, so that the front end and the rear end of the two steel wire ropes 211 are in the same horizontal plane. The rectangular heavy object can be a concrete block, an iron block, etc. The density of the rectangular heavy object is uniformly distributed. When hoisting, the rectangular heavy object is placed horizontally, and the four corners of the upper side of the rectangular heavy object are respectively connected to the four ends of the two steel wire ropes 211. During the height adjustment process of the front end and the rear end of the steel wire rope 211, the rectangular heavy object is always in a horizontal state.

[0024] Since the front end and the rear end of the wire rope 211 are not in the same horizontal plane, when hoisting a rectangular heavy object, the volume of the rectangular heavy object on the front and rear sides of the drum axis is different, and thus the wind-receiving area of ​​the rectangular heavy object on the front and rear sides of the drum is different; when subjected to wind along the drum axis, the force on the rectangular heavy object on the front and rear sides of the drum is unbalanced, making it easy for the rectangular heavy object to rotate, thereby preventing the rectangular heavy object from shaking and improving the hoisting stability.

[0025] Secondly, after the rectangular weight rotates, the rotating plate 220 will drive the drum to rotate, so that the front and rear ends of the two steel ropes 211 are in the same horizontal plane, and the wind-receiving areas on the front and rear sides of the rectangular weight are the same, thereby achieving force balance. The rectangular weight will automatically stop rotating. At this time, the rectangular weight rotates to a position where its length direction is parallel to the wind direction, that is, the downwind position. In this way, the wind-receiving area of ​​the rectangular weight is minimized, which can reduce the shaking amplitude and further improve the lifting stability; at the same time, it can reduce the friction between the connecting ring 203 and the fixed joint 102, thereby extending the service life of the stable lifting equipment used in municipal construction projects.

[0026] In one embodiment, the electric hoist 210 has a rotating groove inside, the rotating plate 220 is located in the rotating groove, and a plurality of universal wheels 221 are provided on the upper and lower sides of the rotating plate 220, one of the universal wheels 221 is provided with a speed sensor, and the speed sensor is used to detect the rotation speed of the rotating plate 220. The universal wheels 221 are evenly distributed around the circumference of the rotating plate 220.

[0027] In one embodiment, the electric hoist 210 has a motor, the motor is used to drive the drum to rotate, the speed sensor is connected to a controller, and the controller can control the rotation of the motor. The working principle of the electric hoist 210 belongs to the prior art and will not be repeated here.

[0028] In one embodiment, the speed sensor detects that the rotation speed of the rotating plate 220 is greater, and the controller drives the motor to drive the drum to rotate faster. In this way, the greater the wind force, the greater the rotation speed of the drum, and the faster the front and rear ends of the wire rope 211 are adjusted to the same horizontal plane, so that the rectangular heavy object is adjusted to a force balance state as soon as possible, thereby adapting to different wind forces and improving the hoisting stability.

[0029] In one embodiment, the front and rear ends of the steel wire rope 211 both have connecting hooks 212, and the connecting hooks 212 are provided with locking buckles. The four corners of the upper side of the rectangular heavy object are respectively provided with snap rings, and the locking buckles are locked with the snap rings to prevent the rectangular heavy object from falling.

[0030] In one embodiment, the bottom of the fixing plate 200 is detachably connected to an annular fixing plate 201, and the opening is provided on the annular fixing plate 201. This facilitates the assembly and disassembly of the rotating plate 220.

[0031] In one embodiment, the annular fixing plate 201 is fixed on the fixing plate 200 by bolts 202. In other embodiments, the annular fixing plate 201 can be inserted into the fixing plate 200.

[0032] In one embodiment, a partition plate is fixedly provided on the drum, and the partition plate separates the two steel wire ropes 211 to prevent the two steel wire ropes 211 from interfering with each other.

[0033] In one embodiment, the stable lifting equipment for municipal construction engineering further comprises a crane 100, the crane 100 has a telescopic boom, a plurality of connecting rings 203 are provided on the top of the fixing plate 200, a fixing joint 102 is provided on the telescopic boom, and the connecting ring 203 is connected to the fixing joint 102 via a connecting rope. In other embodiments, the stable lifting equipment for municipal construction engineering further comprises a hanging rail extending in the left-right direction, and the lifting mechanism can slide along the extending direction of the hanging rail.

[0034] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: In the initial state, the front and rear ends of the two steel wire ropes 211 are respectively hoisted at the two ends of the length direction of the rectangular heavy object, so that the volume of the rectangular heavy object is different before and after the drum. Then the telescopic arm 101 of the crane 100 is controlled to lift, so that the rectangular heavy object is lifted. During the lifting process, if the wind blows along the axis direction of the drum (i.e., the left and right direction), the force on the front and rear sides of the axis of the drum will be unbalanced, so that the rectangular heavy object is easy to rotate. During the rotation of the rectangular heavy object, the rotating plate 220 will be driven to rotate. When the rotating plate 220 rotates, the speed sensor on the universal wheel 221 detects the rotation speed of the rotating plate 220, and transmits the rotation speed to the controller through a signal, so that the controller controls the motor to drive the drum to rotate. Figure 4 As shown, the drum rotates clockwise so that the front and rear ends of the two steel wire ropes 211 are in the same horizontal plane, so that the force of the rectangular heavy object on both sides of the drum axis is balanced. At this time, the rectangular heavy object rotates to a position where its length direction is parallel to the direction of the wind, that is, the downwind position, and then the rectangular heavy object automatically stops rotating. The speed sensor detects that the greater the rotation speed of the rotating plate 220, the greater the rotation speed of the motor-driven drum by the controller, so that the rectangular heavy object is adjusted to a force-balanced state as soon as possible. When the rectangular heavy object rotates to the downwind position, the rectangular heavy object automatically stops rotating, and the drum also stops rotating. At this time, the wind-receiving area of ​​the rectangular heavy object reaches a minimum, thereby preventing the rectangular heavy object from shaking and improving the hoisting stability.

[0035] The present invention connects both ends of two steel wire ropes 211 to the rectangular heavy object, thereby reducing the number of steel wire ropes 211 compared to setting four steel wire ropes 211, avoiding the rectangular heavy object from being unable to be in a horizontal state due to different stretching coefficients of the steel wire ropes 211, and ensuring smooth lifting.

[0036] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A stable lifting equipment for municipal construction engineering, characterized in that: The yoke is used for hoisting a rectangular heavy object, and includes a hoisting mechanism, wherein the hoisting mechanism includes a fixed plate, the axis of the fixed plate extends in the up-down direction, the fixed plate is provided with a rotating plate rotating around the axis of the fixed plate, an electric hoist is fixedly provided on the lower side of the rotating plate, the bottom of the fixed plate is provided with an opening, the electric hoist extends downward from the opening, the electric hoist has a drum, the axis of the drum extends in the left-right direction, two steel wire ropes are wound on the drum, the two steel wire ropes are symmetrically arranged on the left and right, each steel wire rope has a front end portion located at the front side of the drum and a rear end portion located at the rear side of the drum, the front end portion and the rear end portion are not in the same horizontal plane, and the front end portion and the rear end portion of the steel wire rope are respectively hoisted at two ends in the length direction of the rectangular heavy object; when the rectangular heavy object is subjected to wind in the left-right direction, the rectangular heavy object will rotate to a position where its length direction is parallel to the direction of the wind, and at the same time drive the rotating plate to rotate, and the rotation of the rotating plate can drive the drum to rotate, so that the front end portions and the rear end portions of the two steel wire ropes are in the same horizontal plane.

2. The stable lifting equipment for municipal construction engineering according to claim 1 is characterized in that: The electric hoist has a rotating groove inside, the rotating plate is located in the rotating groove, and multiple universal wheels are arranged on the upper and lower sides of the rotating plate. A speed sensor is arranged on one of the universal wheels, and the speed sensor is used to detect the rotating speed of the rotating plate.

3. The stable lifting equipment for municipal construction engineering according to claim 2 is characterized in that: The electric hoist has a motor, and the motor is used to drive the drum to rotate. The speed sensor is connected to a controller, and the controller can control the rotation of the motor.

4. The stable lifting equipment for municipal construction engineering according to claim 3 is characterized in that: The greater the rotation speed of the rotating plate detected by the speed sensor, the greater the rotation speed of the reel driven by the controller.

5. The stable lifting equipment for municipal construction engineering according to claim 1 is characterized in that: The front end and the rear end of the steel wire rope are both provided with connecting hooks, and the connecting hooks are provided with locking buckles. The four corners of the upper side of the rectangular weight are respectively provided with snap rings, and the locking buckles are locked and matched with the snap rings.

6. The stable lifting equipment for municipal construction engineering according to claim 1 is characterized in that: The bottom of the fixing disk is detachably connected with an annular fixing plate, and the opening is arranged on the annular fixing plate.

7. The stable lifting equipment for municipal construction engineering according to claim 6, characterized in that: The annular fixing plate is fixed on the fixing disk by bolts.

8. The stable lifting equipment for municipal construction engineering according to claim 2, characterized in that: The universal wheels are evenly distributed around the circumference of the rotating plate.

9. The stable lifting equipment for municipal construction engineering according to claim 1, characterized in that: A partition plate is fixedly provided on the drum, and the partition plate separates two steel wire ropes.

10. The stable lifting equipment for municipal construction engineering according to claim 1, characterized in that: It also includes a crane, which has a telescopic boom, a plurality of connecting rings are arranged on the top of the fixed plate, a fixing joint is arranged on the telescopic boom, and the connecting ring is connected to the fixing joint through a connecting rope.

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