Hydraulically driven and controlled stage hanger rod system

Abstract

A hydraulically driven and controlled stage suspender system comprises a pulley system (5); a suspender (6); and a driver (4) disposed on an overbridge (3), wherein a pump station (1) and a control system (2) connected with the driver (4) are disposed on the overbridge (3); the driver (4) comprises a pedestal (16); a hydraulic motor (7) is disposed on the pedestal (16); one end of a transmission shaft (8) is connected with the dynamic output terminal of the hydraulic motor (7); a roll (9) is disposed on the transmission shaft (8); a position retainer (10) is disposed on the roll (9); the other end of the transmission shaft (8) is disposed on a support (11) on the end of pedestal (16) through an insert bearing with housing (33); a hydraulic brake (12) is disposed at a position on the support (11) corresponding to the end surface of the roll; and a proportional lead screw (15) is disposed on the pedestal (16). The stage suspender system has the advantages of convenient control, reliability and high efficiency.

Description

Technical field [0001] The invention belongs to the technical field of stage machinery equipment. Background technique [0002] The boom device in the stage machinery is an important part of the stage equipment. Many performance appliances such as scenery, lamps, etc. must use booms to reflect their artistic effects. The lifting of the boom can implement changes in the stage background and enrich the stage. The expressive technique of the artist enhances the artistic appeal. The traditional boom is generally an electric boom. When the electric boom is running, because the AC motor runs at a constant speed, it is not easy to adjust the speed; when the motor starts, an inrush current is generated, which increases the system load and is prone to vibration Damage to the machinery, increase the error, and cause positioning errors; therefore, an external frequency converter is required; the mechanical transmission system used in the existing stage machinery boom system uses the freque...

AI Technical Summary

Problems solved by technology

The traditional boom is generally an electric boom. When the electric boom is running, because the running speed of the AC motor is constant, it is not easy to adjust the speed; when the motor is started, an inrush current is generated, which increases the system load and is prone to vibration. Damage the machinery, increase the error, and generate positioning errors; therefore, an external frequency converter is required; the mechanical transmission system used in the existing stage mechanical boom system uses a frequency converter to realize the stepless speed change of the AC motor to adjust the speed of the boom. The frequency converter is used in this kind of system, the range of speed regulation is not enough, and at the same time, the driving torque decreases gradually. In addition, a mechanical reducer is required to maintain the driving torque, resulting in inconvenient speed regulation, complex transmission system and large positioning error, and there are vulnerable parts. , easy to vibrate and damage machinery, etc. In addition, the transmission system of the existing boom device is relatively complicated

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