CN208008352U - A kind of removable unipods mast hanging apparatus - Google Patents

Abstract

This utility model discloses a movable monopod mast hoisting device, including a monopod mast, a hoisting system installed on the outer wall of the mast, a guy rope system at the top, and a movable base fixed at the bottom. The side of the movable base in contact with the ground is arc-shaped. This utility model is suitable for the temporary hoisting of equipment or objects in confined spaces, and can complete the hoisting task with high quality, quantity, economy, safety, and efficiency. Furthermore, it has a simple structure, is easy to manufacture and install, and is convenient for relocation and maintenance.

Description

A movable monopod mast hoisting device

technical field

The utility model relates to the technical field of hydropower station equipment hoisting, in particular to a movable monopod hoisting device.

Background technique

The powerhouse buildings of hydropower stations are frame and plate beam structures, and the unit equipment is mostly arranged in local spaces, especially the auxiliary machines and electrical systems are mostly hoisted in narrow and limited spaces. Single mast hoisting is suitable for hoisting in small and limited spaces, but the base of a general single mast needs to be designed as a hinged seat structure, and the foundation plate and high-strength bolts need to be pre-embedded in advance, which is time-consuming and uneconomical.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide a movable stand alone that can reasonably arrange lifting and hoisting equipment according to the actual geographical conditions of the construction site, complete the hoisting tasks of equipment or objects, and is easy to manufacture and install, and easy to transport and maintain. Foot mast lifting device. The technical solution is as follows:

A lifting device for a movable monopod mast, comprising a monopod mast, a hoisting system is provided on the outer wall of the monopod mast, a cable wind rope system is provided on the top, and a movable base is fixed on the bottom, and the movable base is in contact with the ground One side is curved.

Further, the lifting system includes a fixed block suspended on the upper part of the monopod, a movable block forming a pulley block with the fixed block, and a guide wheel hung on the lower part of the monopod; the hoisting rope goes around the block and the guide wheel Connect the hoist.

Further, the other side of the lower guide wheel of the monopod is provided with a stay rope.

Furthermore, the guide wheels and pull cords are arranged on the fixed piece above the movable base.

Furthermore, the cable wind rope system includes four rear cable wind ropes and two front cable wind ropes; the upper ends of the rear cable wind ropes and the front cable wind ropes are fixed on the top of the monopod mast, and the lower ends are anchored or connected to the winch; The angle with the ground is 30°～45°.

The beneficial effects of the utility model are: the utility model is suitable for the installation of temporary hoisting equipment or objects in narrow and limited spaces. When in use, the lifting and hoisting equipment can be reasonably arranged according to the actual geographical conditions of the construction site through scientific and reasonable design calculations, which can ensure Quality assurance, economical, safe and efficient completion of equipment or object hoisting tasks; and simple structure, easy to manufacture, install, easy to transport and repair.

Description of drawings

Fig. 1 is a structural schematic diagram of a movable monopod mast hoisting device of the present invention.

Fig. 2 is a schematic diagram of the inclined hoisting of the movable monopod hoisting device of the present invention.

Fig. 3 is a schematic diagram of the wind rope layout of the movable monopod mast hoisting device of the present invention.

In the figure: 1-monopod mast; 2-lifting system; 21-fixed block; 22-moving block; 23-guiding wheel; 24-lifting rope; 3-cable wind rope system; 31-rear cable wind rope; 32-front cable wind rope; 4-movable base; 5-stay rope; 6-fixer.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail. As shown in Figure 1, a movable monopod hoisting device includes a monopod 1, a hoisting system 2 is provided on the outer wall of the monopod 1, a cable wind rope system 3 is provided on the top, and a movable mast is fixed on the bottom. The base 4, the side of the movable base 4 in contact with the ground is arc-shaped. Generally, the base of a single mast needs to be designed as a hinged base structure, and the base plate and high-strength bolts need to be pre-embedded in advance, which is time-consuming and uneconomical; however, this embodiment meets the needs of temporary hoisting, and the base of the mast is designed to be movable. The arc-shaped base can be hoisted immediately after it is dragged to the installation site and erected, and the supporting lifting system and cable wind rope system are completed, which is more convenient and practical.

Hoisting system 2 comprises the fixed tackle 21 that is suspended on the monopod 1 top, the moving block 22 that forms pulley block with fixed tackle 21, and the guide wheel 23 that hangs on the monopod 1 bottom; Hoisting rope 24 walks around block and pulley The guide wheel 23 is connected with hoist behind. The cable wind rope system 3 includes four rear cable wind ropes 31 and two front cable wind ropes 32; the upper ends of the rear cable wind ropes 31 and the front cable wind ropes 32 are fixed on the top of the monopod 1, and the lower ends are anchored or connected to the hoist; The angle between it and the ground is 30°～45°.

The monopod 1 is made of steel pipes, the lifting force is generally within 30t, and the lifting height is less than 20m. Mast size: seamless steel pipe for structure Ø300mm, wall thickness; special hoist wire rope for hoisting within Ø24.5mm; usually 6 wind ropes are arranged, 4 wind ropes for rear cables, and 2 wind ropes for front cables. The cable wind rope is within Ø28mm, one end of which can be fixed on an anchor, a building or a hoist configured separately.

Before use, according to the actual needs of hoisting, determine the basic parameters (such as lifting capacity and lifting height, etc.), then initially select the size of the mast (including steel specifications), and finally determine the size and material specifications of the mast through checking calculations. In addition, it is necessary to calculate the lifting blocks, winches, wind ropes and anchor spindles required for the mast. As long as the above-mentioned analysis and calculation are carried out, the load-bearing specifications of the mast, the tension of the hoist and the tension of the cable wind rope are well designed, and the quality and quantity can be guaranteed, and the task of hoisting and placing equipment or objects in the narrow and limited space of the hydropower station can be completed economically, safely and efficiently.

The specific operation is as follows: first, install and debug the steel pipe monopod mast, hoisting system equipment and cable wind rope system equipment at the position of the equipment to be hoisted. After checking that the performance of each installed equipment meets the hoisting requirements, operate the hoisting system of the winch to raise the hoisting height of the equipment to be hoisted 100mm from the ground. Observe the force changes of each system of the simple movable monopod mast device. After checking and confirming that there are no potential safety hazards, you can continue to lift the equipment or objects until it is hoisted to the installation position and then slowly lands at the position to be installed.

If there is a certain horizontal distance between the hoisting device and the equipment to be hoisted, it is necessary to hoist the equipment to be hoisted from the original parking point to a point close to the axis of the monopod mast, as shown in Figure 2. The monopod mast can be inclined towards the direction of the equipment to be hoisted. When the inclination angle of the mast is ≤10 ⁰ , the frictional resistance (sliding friction coefficient: steel and soil is about 0.4) due to the gravity of the mast is enough to overcome the horizontal thrust, and the influence of the horizontal thrust may not be considered ; When the inclination angle is more than or equal to 10°, the stay rope ⁵ can be temporarily arranged, and the stay rope 5 is matched with a hoist or a hand-drawn guide chain, so as to offset the horizontal thrust of the monopod mast base and avoid slippage. When the equipment to be hoisted is 100mm above the ground, check the force change of each system of the simple monopod mast hoisting device, check that there is no potential safety hazard, continue to hoist the hoisting height, and then hoist it to the vicinity of the installation site, slowly retract the rear cable wind rope, and The cable wind rope coordinates and relaxes the wire rope to achieve the purpose of controlling the pitching of the monopod mast. When the hoisting vertical line of the monopod mast is above the equipment to be installed, operate the hoisting hoist to make the hoisting system slowly descend until it lands on the installation site, and the hoisting is completed.

Claims (5)

1. a kind of removable unipods mast hanging apparatus, which is characterized in that including unipods mast（1）, unipods mast（1）Bar outer wall On be provided with tackling system（2）, top is provided with cable wind rope system（3）, bottom is fixed with mobile base（4）, the dump bottom Seat（4）The one side contacted with ground is arc.

2. removable unipods mast hanging apparatus according to claim 1, which is characterized in that the tackling system（2）Including Hang on unipods mast（1）The fixed block on top（21）, with fixed block（21）Constitute the fly block of pulley blocks（22）, and hang In unipods mast（1）The directive wheel of lower part（23）；Hoisting line（24）Around pulley blocks and directive wheel（23）After connect hoist engine.

3. removable unipods mast hanging apparatus according to claim 2, which is characterized in that the unipods mast（1）Lower part Directive wheel（23）The other side be equipped with drawstring（5）.

4. removable unipods mast hanging apparatus according to claim 3, which is characterized in that the directive wheel（23）And drawstring （5）It is set to mobile base（4）The fixing piece of top（6）On.

5. removable unipods mast hanging apparatus according to claim 1, which is characterized in that the cable wind rope system（3）Packet Cable wind rope after including four（31）With two preceding cable wind ropes（32）；Cable wind rope afterwards（31）With preceding cable wind rope（32）Upper end is both secured to solely Foot mast（1）Top, anchoring lower ends or connection hoist engine；It is 30 °~45 ° with ground angle.