Lifting head for water conservancy and hydropower engineering

Abstract

The utility model relates to the technical field of water conservancy and hydropower engineering, and discloses a lifting head for water conservancy and hydropower engineering, which comprises a cross beam, a sliding frame is connected to the surface of the cross beam in a sliding manner, a lifting machine for lifting is arranged at the bottom of the sliding frame, and a pull rope is arranged on the surface of the lifting machine. The bottom of the lifting machine is fixedly connected with counterweight assemblies used for increasing counterweight in an axial symmetry mode, and telescopic rods are arranged at the bottoms of the counterweight assemblies. According to the lifting head for the water conservancy and hydropower engineering, through arrangement of the positioning assemblies, an object is placed between the positioning plates during object lifting, the positioning plates are attached to the two sides of the object through rotation of the threaded rods, the positioning plates are fixed, the threaded rods are arranged on the connecting plates, and the connecting plates are arranged on one sides of the bottom ends of the telescopic rods; along with the lifting of an article, the lifting device can ascend and descend through the telescopic rod, so that the article is prevented from rotating downwards, inclining and displacing when being lifted, and the lifting stability is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a lifting head for water conservancy and hydropower engineering. Background Technique

[0002] Commonly used lifting equipment for water conservancy and hydropower projects includes tower cranes, portal cranes, bridge cranes, gantry cranes, etc. These equipment can all carry out lifting operations for large water conservancy and hydropower projects. These equipment all have their own characteristics and application scopes, and generally need to be selected according to specific project requirements and site conditions.

[0003] A lifting equipment for water conservancy and hydropower engineering disclosed in the publication number CN220449564U, although it is convenient for loading operations. The lifted materials are loaded into the mobile loading and unloading box. Under the rotation of the rollers, the mobile loading and unloading box can be pushed back to its original position labor-savingly, improving the working efficiency of the device. Pull the safety belt, and the safety belt fixing buckle fixes one end of the safety belt to protect the goods from slipping from the front side. The fixing plate descends to limit and fix the top surface of the loaded materials, increasing stability and making it not easy to slip during high-altitude transportation, improving safety.

[0004] However, this kind of lifting equipment for water conservancy and hydropower engineering has the following disadvantages:

[0005] (1) During the water conservancy project, when lifting an object, the center of gravity of the object cannot be balanced, it sways, and the load on the main rope is too large, increasing the pressure on the lifting equipment;

[0006] (2) When lifting an object, the object tilts and rotates, resulting in the object not being able to be accurately lifted to the accurate position. Content of the Utility Model

[0007] (1) Technical Problems to be Solved

[0008] The technical problem solved by the utility model is to provide a lifting head for water conservancy and hydropower engineering with relatively high practicability, and which can be operated simply and has a relatively simple structure. It solves the problems that when lifting an object, the center of gravity of the object cannot be balanced, it sways, the load on the main rope is too large, increasing the pressure on the lifting equipment, and when lifting an object, the object tilts and rotates, resulting in the object not being able to be accurately lifted to the accurate position as mentioned in the above background technique.

[0009] (2) Technical Solutions

[0010] To achieve the above objectives, the present utility model is realized through the following technical solutions: A lifting head for water conservancy and hydropower projects, including a crossbeam, on the surface of the crossbeam is slidably connected a sliding frame, at the bottom of the sliding frame is provided a hoist for lifting, on the surface of the hoist is provided a pulling rope, at the bottom of the hoist is symmetrically fixedly connected a counterweight assembly for increasing the counterweight, at the bottom of the counterweight assembly is provided a telescopic rod, and on one side of the bottom end of the telescopic rod is fixedly connected a positioning assembly for improving the lifting stability.

[0011] Optionally, the counterweight assembly includes square plates symmetrically fixedly connected to the bottom of the hoist, at the four corners of the bottom of the square plates are fixedly connected connecting rods, at the bottom of the connecting rods are fixedly connected bottom plates, and on the surface of the bottom plates are provided grooves.

[0012] Optionally, on the top of the bottom plate and on one side of the groove is fixedly connected a clamping plate, around the surface of the clamping plate is wound a rope, at one end of the rope is provided a counterweight block, and at the other end of the rope is fixedly connected a fixing ring, and the inside of the fixing ring is fixedly connected to the surface of one end of the pulling rope.

[0013] Optionally, the positioning assembly includes a connecting plate fixedly connected to one side of the bottom end of the telescopic rod, on the surface of the connecting plate is provided a threaded rod for adjusting the tightness, at one end of the threaded rod is provided a positioning plate for fixing the lifted object, and at the other end of the threaded rod is provided a rotating ring.

[0014] Optionally, in the middle of the side of the hoist is fixedly connected a fixing plate, and on the surface of the fixing plate is provided a sliding groove.

[0015] Optionally, inside the sliding groove is slidably connected a sliding block, and on the surface of the sliding block is fixedly connected a positioning rod.

[0016] Optionally, at one end of the positioning rod is provided a collar, and the inside of the collar is fixedly connected to the surface of the pulling rope.

[0017] (III) Beneficial effects

[0018] The present utility model provides a lifting head for water conservancy and hydropower projects, having the following beneficial effects:

[0019] 1. For the lifting head used in water conservancy and hydropower projects, through the setting of the counterweight assembly, during the construction of water conservancy and hydropower projects, when using a crane to lift an object, fix the object at one end of the pulling rope, connect the crane to an external power source, and make it start lifting the object through the pulling rope. As the object rises, it can drive the ropes on both sides of the pulling rope to start paying out the rope, and the counterweight block starts to descend. When the object is lowered, start taking in the rope, and the counterweight block starts to rise. This can help balance the center of gravity of the lifted object, reduce the possibility of the object swaying and tilting, ensure that the object remains stable and vertical during the lifting process, and the counterweight block can help reduce the load on the pulling rope, share the weight of the lifted object, reduce the pressure on the pulling rope and the crane, and extend the service life of the equipment.

[0020] 2. For the lifting head used in water conservancy and hydropower projects, through the setting of the positioning assembly, during the lifting of the object, place the object between the positioning plates, and by rotating the threaded rod, make the positioning plates fit on both sides of the object and fix it. Since the threaded rod is arranged on the connecting plate, and the connecting plate is arranged on one side of the bottom end of the telescopic rod, as the object is lifted, it can rise and fall through the telescopic rod, thus avoiding the occurrence of downward rotation and tilting displacement when the object is lifted, and further improving the stability of the lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the crane of the present utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the counterweight assembly of the present utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the positioning assembly of the present utility model.

[0025] In the figure: 1, cross beam; 2, carriage; 3, crane; 4, pulling rope; 5, counterweight assembly; 51, square plate; 52, connecting rod; 53, bottom plate; 54, groove; 541, clamping plate; 542, rope; 543, counterweight block; 544, fixing ring; 6, telescopic rod; 7, positioning assembly; 71, connecting plate; 72, threaded rod; 73, positioning plate; 74, swivel ring; 8, fixing plate; 9, chute; 10, slider; 11, positioning rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a lifting head for water conservancy and hydropower projects, including a cross beam 1, a sliding frame 2 is slidably connected to the surface of the cross beam 1, a hoist 3 for lifting is arranged at the bottom of the sliding frame 2, a pulling rope 4 is arranged on the surface of the hoist 3, and a counterweight assembly 5 for increasing the counterweight is fixedly connected to the bottom of the hoist 3 in an axisymmetric manner. A telescopic rod 6 is arranged at the bottom of the counterweight assembly 5, and a positioning assembly 7 for improving the lifting stability is fixedly connected to one side of the bottom end of the telescopic rod 6.

[0028] Please refer to Figure 1 and Figure 2 , a fixing plate 8 is fixedly connected to the middle of the side of the hoist 3, a chute 9 is opened on the surface of the fixing plate 8, a slider 10 is slidably connected inside the chute 9, a positioning rod 11 is fixedly connected to the surface of the slider 10, and a sleeve ring is arranged at one end of the positioning rod 11, and the inside of the sleeve ring is fixedly connected to the surface of the pulling rope 4. The arrangements of the fixing plate 8, the chute 9, the slider 10 and the positioning rod 11 can, as the pulling rope 4 rises, further improve the rising stability of the pulling rope 4 by sliding the positioning rod 11 and the slider 10 inside the chute 9.

[0029] Embodiment 1:

[0030] Please refer to Figure 3 , the counterweight assembly 5 includes square plates 51 fixedly connected to the bottom of the hoist 3 in an axisymmetric manner. Connecting rods 52 are fixedly connected to the four corners of the bottom of the square plates 51. The bottom of the connecting rods 52 is fixedly connected to a bottom plate 53. A groove 54 is opened on the surface of the bottom plate 53. A clamping plate 541 is fixedly connected to the top of the bottom plate 53 and on one side of the groove 54. A rope 542 is wound around the surface of the clamping plate 541. A counterweight block 543 is arranged at one end of the rope 542. The other end of the rope 542 is fixedly connected to a fixing ring 544, and the inside of the fixing ring 544 is fixedly connected to the surface of one end of the pulling rope 4. During the construction of water conservancy and hydropower, when using the hoist 3 to lift an object, the object is fixed to one end of the pulling rope 4, and the hoist 3 is connected to an external power supply to start lifting the object through the pulling rope 4. As the object rises, the ropes 542 on both sides of the pulling rope 4 can be driven to start paying out the rope, and the counterweight block 543 starts to descend. When the object is lowered, the ropes 542 start to be wound up, and the counterweight block 543 starts to rise, which can help balance the center of gravity of the lifted object, reduce the possibility of the object swaying and tilting, and ensure that the object remains stable and vertical during the lifting process. The counterweight block 543 can help reduce the load on the pulling rope 4, share the weight of the lifted object, reduce the pressure on the pulling rope 4 and the hoist 3, and extend the service life of the equipment.

[0031] Embodiment 2:

[0032] Please refer to Figure 4, the positioning assembly 7 includes a connecting plate 71 fixedly connected to one side of the bottom end of the telescopic rod 6. A threaded rod 72 for adjusting the tightness is provided on the surface of the connecting plate 71. A positioning plate 73 for fixing the lifted item is provided at one end of the threaded rod 72, and a swivel ring 74 is provided at the other end of the threaded rod 72. During the lifting of the item, the item is placed between the positioning plates 73, and by rotating the threaded rod 72, the positioning plates 73 are made to fit on both sides of the item and fix it. Since the threaded rod 72 is provided on the connecting plate 71 and the connecting plate 71 is provided on one side of the bottom end of the telescopic rod 6, as the item is lifted, it can be raised and lowered by the telescopic rod 6, thus avoiding the occurrence of downward rotation and tilting displacement when the item is lifted, and further improving the stability of the lifting.

[0033] In the present utility model, the working steps of the device are as follows:

[0034] The first step: During the construction of water conservancy and hydropower projects, when using the hoist 3 to lift an item, the item is fixed to one end of the pulling rope 4, and the hoist 3 is connected to an external power source, causing it to start lifting the item through the pulling rope 4. As the item rises, the ropes 542 on both sides of the pulling rope 4 start to unwind, and the counterweight 543 starts to descend. When the item is lowered, the ropes 542 start to be wound up, and the counterweight 543 starts to rise, which can help balance the center of gravity of the lifted item.

[0035] The second step: During the lifting of the item, the item is placed between the positioning plates 73, and by rotating the threaded rod 72, the positioning plates 73 are made to fit on both sides of the item and fix it. Since the threaded rod 72 is provided on the connecting plate 71 and the connecting plate 71 is provided on one side of the bottom end of the telescopic rod 6, as the item is lifted, it can be raised and lowered by the telescopic rod 6, thus avoiding the occurrence of downward rotation and tilting displacement when the item is lifted.

[0036] It should be noted that the device structure and the drawings of the present utility model mainly describe the principle of the present utility model. On the basis of this design principle, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control method of the application document is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0037] The standard parts used can all be purchased from the market, and can also be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting head for water conservancy and hydropower engineering, comprising a crossbeam (1), characterized in that: The surface of the crossbeam (1) is slidably connected to a slide (2), a hoist (3) for lifting is arranged at the bottom of the slide (2), a pull rope (4) is arranged on the surface of the hoist (3), a counterweight assembly (5) for adding counterweight is axially symmetrically fixedly connected to the bottom of the hoist (3), a telescopic rod (6) is arranged at the bottom of the counterweight assembly (5), and a positioning assembly (7) for improving lifting stability is fixedly connected to one side of the bottom end of the telescopic rod (6).

2. A lifting head for water conservancy and hydropower engineering according to claim 1, characterized in that: The counterweight assembly (5) comprises a square plate (51) which is fixedly connected to the bottom of the crane (3) in an axisymmetric manner, and the four corners of the bottom of the square plate (51) are fixedly connected to connecting rods (52), and the bottom of the connecting rods (52) is fixedly connected to a bottom plate (53), and a groove (54) is provided on the surface of the bottom plate (53).

3. A lifting head for water conservancy and hydropower engineering according to claim 2, characterized in that: A clamping plate (541) is fixedly connected to the top of the bottom plate (53) and located on one side of the groove (54); a rope (542) is wound around the surface of the clamping plate (541); a counterweight (543) is provided at one end of the rope (542); a fixing ring (544) is fixedly connected to the other end of the rope (542); and the interior of the fixing ring (544) is fixedly connected to the surface of one end of the pull rope (4).

4. A lifting head for water conservancy and hydropower engineering according to claim 1, characterized in that: The positioning assembly (7) comprises a connecting plate (71) fixedly connected to one side of the bottom end of the telescopic rod (6); a threaded rod (72) for adjusting the tightness is arranged on the surface of the connecting plate (71); a positioning plate (73) for fixing the hoisted object is arranged at one end of the threaded rod (72); and a swivel (74) is arranged at the other end of the threaded rod (72).

5. A lifting head for water conservancy and hydropower engineering according to claim 1, characterized in that: A fixing plate (8) is fixedly connected to the middle of the side of the hoist (3), and a sliding groove (9) is provided on the surface of the fixing plate (8).

6. A lifting head for water conservancy and hydropower engineering according to claim 5, characterized in that: The interior of the slide groove (9) is slidably connected to a slider (10), and the surface of the slider (10) is fixedly connected to a positioning rod (11).

7. A lifting head for water conservancy and hydropower engineering according to claim 6, characterized in that: A collar is provided at one end of the positioning rod (11), and the interior of the collar is fixedly connected to the surface of the pull rope (4).

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