# US 10,118,811 B2 · Eccentric loading adjusting mechanism and method for parallel suspension platform

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- Number: US 10,118,811 B2
- Document ID: US10118811B2
- Status: Granted
- Kind: B2
- Application number: 15/539,175
- Filed: 2015-12-29
- Published: 2018-09-20
- Granted: 2018-11-06
- Earliest claimed: 2015-11-27
- Assignees: China University of Mining and Technology
- Applicants: China University of Mining and Technology
- Inventors: Zhencai Zhu; Guohua Cao; Naige Wang; Lu Yan; Lei Wei; Lei Wang; Weihong Peng; Wei Li; Gongbo Zhou; Yuxing Peng
- Web page: https://patentgrep.com/patent/US10118811B2

## CPC

- B66F 11/044: {Working platforms suspended from booms}
- B66B 7/046: {Rollers}
- B66B 17/12: Counterpoises
- B66C 13/08: for depositing loads in desired attitudes or positions
- B66C 21/00: Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways (rope or cable drives for trolleys, combinations of such drives with hoisting gear B66C11/16; railway systems B61B; rope or cable winding mechanisms B66D1/00)
- B66F 17/006: {for working platforms}
- B66F 2700/09: Other lifting devices
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)
- B66C: CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES ({specially adapted for lifting invalids A61G7/10;} rope, cable, or chain winding mechanisms, braking or detent devices therefor B66D; specially adapted for nuclear reactors G21)

## Abstract

An eccentric loading adjusting mechanism (5) and method for a parallel suspension platform. The adjusting mechanism (5) comprises a rotary platform (5-2) and a support guide frame (5-3) disposed on the rotary platform (5-2), wherein the base of the rotary platform (5-2) is fixedly connected to a suspension platform (4); a circular guide rail (5-8) is provided around the rotary platform (5-2); the support guide frame (5-3) is provided with two counterweight guide rails (5-15) and is connected to a rotary table of the rotary platform (5-2) by means of a rotary plate (5-17) on the support guide frame (5-3); and an electric drive pusher (5-6) drives a counterweight means (5-9) to move along the two counterweight guide rails (5-15), thereby eliminating eccentric loading.

## Claims

### Claim 1

An eccentric load adjusting mechanism for a parallel-connected suspension platform, comprising a suspension platform (4), wherein, an eccentric load adjusting mechanism (5) is mounted on the suspension platform (4), and the eccentric load adjusting mechanism (5) comprises a rotary platform (5-2) driven by a servo motor (5-1) and a support and guide frame (5-3) arranged on the rotary platform (5-2), the suspension platform (4) is fixedly connected at its center to a base of the rotary platform (5-2), and a circular guide rail (5-8) is arranged around the rotary platform (5-2) and fixedly mounted on the suspension platform (4); a support and guide frame (5-3) comprises two counterweight guide rails (5-15) arranged in parallel to each other, a left angle steel piece (5-14) and a right angle steel piece (5-16) fixedly connected to left ends and right ends of the counterweight guide rails (5-15) respectively and arranged in parallel to each other, and a swivel plate (5-17) arranged in parallel to the counterweight guide rails (5-15) and fixedly connected to the middle parts of the left angle steel piece (5-14) and right angle steel piece (5-16);
the support and guide frame (5-3) is fixed via the swivel plate (5-17) to a rotary disk of the rotary platform (5-2); the swivel plate (5-17) is provided with rollers (5-7) that fit with the guide rails (5-8) at positions corresponding to the guide rails (5-8);
a push rod right support angle steel piece (5-13) is fixedly connected to the left end of the left angle steel piece (5-14), a push rod left support angle steel piece (5-11) is parallelly arranged at the left side of the right support angle steel piece for push rod (5-13), the front and rear ends of the push rod left support angle steel piece (5-11) and push rod right support angle steel piece (5-13) are fixedly connected via a front angle steel piece (5-12) and a rear angle steel piece (5-10) arranged in parallel to each other;
a hinged base (5-5) is fixedly connected above the push rod left support angle steel piece (5-11), a support base (5-4) is fixedly connected above the right support angle steel piece (5-13), the hinged base (5-5) is hinged to the left end of an electric push rod (5-6), the support base (5-4) is used for fixing the middle part of the electric push rod (5-6), a counterweight device (5-9) is connected to the right end of the electric push rod (5-6), and the counterweight device (5-9) can work with the two counterweight guide rails (5-15) to move in an extending/retracting direction of the electric push rod (5-6).

### Claim 2 (depends on 1)

The eccentric load adjusting mechanism for a parallel-connected suspension platform according to claim 1, wherein, the counterweight device (5-9) comprises a counterweight frame (5-19) and counterweight blocks (5-18) arranged on the counterweight frame (5-19), at least four counterweight wheels (5-20) arranged around the bottom of the counterweight frame (5-19) at positions corresponding to the two counterweight guide rails (5-15).

### Claim 3 (depends on 1)

The eccentric load adjusting mechanism for a parallel-connected suspension platform according to claim 1, wherein, the suspension platform (4) is circular, the rotary platform (5-2) is arranged at the center of circle of the suspension platform (4), and the guide rail (5-8) is arranged around the outer rim of the suspension platform (4).

### Claim 4

An eccentric load adjusting method for a parallel-connected suspension platform, wherein, comprising the following steps:
step 1: arranging four rope winding devices (1) in the same horizontal plane, wherein each of rope winding devices (1) is wound with a steel wire rope (2) respectively, connecting each of the four steel wire ropes (2) via a tension sensor (3) to the suspension platform (4) respectively, and assembling the eccentric load adjusting mechanism (4) on the suspension platform (4);
step 2: when an eccentric load of the suspension platform (4) occurs, obtaining tension data with the tension sensors (3), performing tension analysis and ascertaining the magnitude and position of the eccentric load under a moment balance principle, and driving the rotary platform (5-2) with a servo motor (5-1) to rotate and thereby driving the support and guide frame (5-3) to rotate to an angle corresponding to a direction opposite to the eccentric load, and then moving the counterweight device (5-9) on the counterweight guide rails (5-15) by a corresponding distance by the electric push rod (5-6), so as to eliminate the eccentric load of the platform.