CN203255902U - Multi-pulley-block four-winch linkage derrick lifting platform - Google Patents

Abstract

The utility model discloses a multi-pulley block four-machine linkage derrick lifting platform. It includes: steel derrick, four hoists, four pulley blocks, four No. 1 fixed pulleys, four steel wire ropes and a hoisting platform, wherein the four hoists are symmetrically distributed at four corners, and the four hoists pass through The linkage device starts running at the same time, and the four hoists provide power to pull up the steel wire rope, and the steel wire rope drives the lifting platform to rise and fall synchronously through the pulley block. Since the multi-pulley group four-machine linkage derrick lifting platform of the utility model adopts four winches and multiple pulley blocks, the load capacity is greatly increased without increasing the power of the hoist, ensuring safety, improving construction efficiency, and saving man-hours , which saves mechanical work and costs, and at the same time, it is also conducive to environmental protection.

Description

Multi-pulley four-machine linkage derrick lifting platform

technical field

The utility model relates to a mechanical lifting device, in particular to a multi-pulley block four-machine linkage derrick lifting platform. the

Background technique

When transporting large and heavy equipment for industrial, civil and municipal construction, large mobile cranes are usually used for hoisting. However, to install large equipment at high altitude in a confined space (such as factory building, tunnel, deep well, etc.), when lifting large equipment, due to the limitation of the confined space, or the interference of other equipment and facilities in the confined space, large-scale movement may occur. Cranes cannot enter confined spaces, or large mobile cranes cannot hoist large equipment at high altitudes in confined spaces. the

Utility model content

The technical problem mainly solved by the utility model is to provide a multi-pulley block four-machine linkage derrick lifting platform, which can complete the high-altitude lifting of large-scale equipment in a confined space. the

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a multi-pulley block four-machine linkage derrick lifting platform, including: steel derrick, four hoists, four pulley blocks, four No. 1 fixed pulleys, four The steel wire rope and the hoisting platform, wherein the four hoists are symmetrically distributed in four corners, and the four hoists are simultaneously started to run through the linkage device, and the four hoists provide power to pull the steel wire rope, and the steel wire rope The lifting platform is driven to rise and fall synchronously by the pulley block. the

Wherein, a wire deflector can be arranged between the No. 1 fixed pulley and the hoist, and the wire deflector is located above the wheel shaft of the hoist. the

Wherein, the shaped steel derrick includes four columns and four horizontal columns, and the No. 1 fixed pulley is fixed on the inner side of the top of the column of the shaped steel derrick. the

Wherein, the four pulley blocks are symmetrically distributed in four corners, each pulley block includes a No. 2 fixed pulley and a movable pulley, and the No. 2 fixed pulley is fixed on the outside of the column of the shaped steel derrick, and the movable pulley is connected with the hoisting platform. the

Since the multi-pulley group four-machine linkage derrick lifting platform of the utility model adopts four winches and multiple pulley blocks, the load capacity is greatly increased without increasing the power of the hoist, ensuring safety, improving construction efficiency, and saving man-hours , saving the mechanical work and cost. At the same time, the multi-pulley block four-machine linkage derrick lifting platform can increase the load capacity by about 50% without increasing the power of the hoist by adding multiple pulley blocks. The same amount of work is equivalent to saving half of the man-hours. Calculated by saving 4 hours per day, the power saving is: 7.5 kW × 4 × 4H = 120 kWh, which is equivalent to saving 67.3 kg of coal and 673 kg of carbon dioxide emissions per day, so it is beneficial to environmental protection. the

Description of drawings

Fig. 1 is a structural schematic diagram of the multi-pulley block four-machine linkage derrick lifting platform of the present invention. the

Fig. 2 and Fig. 3 are structural schematic diagrams of the multi-pulley block of the multi-machine linkage derrick lifting platform of the present invention. the

Fig. 4 and Fig. 5 are structural schematic diagrams of the hoist wheel axle cable straightener of the multi-pulley block four-machine linkage derrick lifting platform of the utility model. the

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and embodiments. the

Referring to Fig. 1, the preferred embodiment of the multi-pulley block four-machine linkage derrick lifting platform of the present invention includes: steel derrick 1, four hoists 2, four pulley blocks 3, four No. 1 fixed pulleys 7, four steel wire ropes 4 and lifting Hanging platform 5. Wherein, the four hoisting machines 2 are symmetrically distributed in four corners, and the four hoisting machines 2 start to run simultaneously through the linkage device, and the four hoisting machines 2 are respectively connected with one end of four steel wire ropes 4 for providing power Pull up the four steel wire ropes 4, the other ends of the four steel wire ropes 4 are fixedly connected with the pulley block 3, so as to drive the lifting platform 5 to rise and fall synchronously through the pulley block 3, and the shaped steel derrick 1 includes four A column and four horizontal columns. the

Each pulley block 3 comprises No. two fixed pulley 6 and movable pulley 8, and described No. two fixed pulley 6 is arranged on the inboard of the top of the column of shaped steel derrick 1, and described No. 1 fixed pulley 7 is arranged on the outside of the column of shaped steel derrick 1 , and the height of the first fixed pulley 7 is lower than the height of the second fixed pulley 6 . One end of the steel wire rope 4 is connected with the winch 2, and is then fixed in the groove on the surface of the No. 1 fixed pulley 7, and further fixed in the groove on the surface of the No. 1 fixed pulley 7. the

Referring to Fig. 4 and Fig. 5, a wire deflector 9 can be arranged between the No. 2 fixed pulley 7 and the hoist 2, and the wire deflector 9 is positioned above the axle of the hoist 2, so that the steel wire rope 4 can only be perpendicular to the axle of the hoist 2 Winding ensures that the arrangement of the wire rope 4 on the hoist 2 wheel shaft will not be misaligned, reducing the wear of the wire rope 4. the

With reference to Fig. 2 and Fig. 3, described four block pulleys 3 are symmetrically distributed in four corners, and each pulley block 3 comprises No. 1 fixed pulley 6 and movable pulley 8, and described No. 1 fixed pulley 6 is fixed on the column of shaped steel derrick 1 The inner side of the top, the movable pulley 8 is connected with the lifting platform 5 . the

Wherein, the quantity of the pulley block 3 can be increased or decreased according to the actual situation and when the speed meets the requirement. the

Wherein, the number of fixed pulleys 7 and movable pulleys 8 can be increased in each of the pulley blocks 3 , and the stress on the wire rope 4 can be reduced by changing the arrangement of the pulley blocks 3 . the

When in use, first fix the four winches 2 on the ground, and their positions correspond to the four corners of the hoisting platform 5, so as to facilitate the lifting operation; On the inner side of the top of the top, the movable pulley 8 is connected to the four corners of the hoisting platform 5 through cables or chains, and the No. 2 fixed pulley 7 is fixed on the outside of the column of the steel derrick 1; , forming a traction and labor-saving system, one end of the traction wire rope 4 is connected to the wheel shaft of the No. 1 fixed pulley 6, and the other end is connected to the winch 2 through the cable guide 9; finally, four winches 2 are simultaneously started through the linkage device, and the Lift and lift platform 5 and the load on it. the

Features of the multi-pulley four-machine linkage derrick lifting platform of the utility model: Since the multi-pulley four-machine linkage derrick lifting platform of the utility model adopts four winches and multiple pulley groups, the load capacity is greatly increased without increasing the power of the hoist , to ensure safety, improve construction efficiency, save man-hours, save mechanical shifts and costs, and at the same time, it is also conducive to environmental protection. the

The above are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process conversion made by using the specification of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related Technical fields are all included in the scope of patent protection of the utility model in the same way. the

Claims (4)

1. A multi-pulley four-machine linkage derrick hoisting platform is characterized in that, the multi-pulley four-machine linkage derrick hoisting platform includes: steel derrick, four hoists, four pulley blocks, four No. 1 fixed pulleys, and four steel wire ropes and the hoisting platform, wherein the four hoists are symmetrically distributed in four corners, the four hoists are simultaneously started to run through the linkage device, and the four hoists provide power to pull up the steel wire rope, and the steel wire rope passes through The block of pulleys drives the lifting platform to rise and fall synchronously. the 2. The multi-pulley four-machine linkage derrick hoisting platform according to claim 1, characterized in that a wire deflector can be arranged between the No. 1 fixed pulley and the hoist, and the wire deflector is located above the hoist wheel shaft. the 3. The multi-pulley four-machine linkage derrick lifting platform according to claim 1, wherein the steel derrick includes four columns and four horizontal columns, and the No. 1 fixed pulley is fixed on the top of the steel derrick column. inside. the 4. The multi-pulley block four-machine linkage derrick lifting platform according to claim 1 or 2, characterized in that, the four pulley blocks are symmetrically distributed at four corners, and each pulley block includes No. 2 fixed pulley and movable pulley, and the The No. 2 fixed pulley is fixed on the outside of the column of the shaped steel derrick, and the movable pulley is connected with the hoisting platform. the

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