An electromechanical force source device capable of bidirectional loading

Abstract

The invention discloses an electromechanical type force source device allowing bi-directional loading. The electromechanical type force source device is a loading device which exerts force on a loaded object by the utilization of displacement changes. The electromechanical type force source device comprises a drive component, a guide component, a monitoring element and a precise force transmission component. The drive component is composed of a servo motor and a spiral lifting machine and is in charge of driving the force transmission component to move in an orientation mode. The guide component is used for guaranteeing that the direction of loading force is in the direction needing loading. The monitoring element can monitor an output force value in real time. The precise force transmission component is composed of a force transmission rod, a connecting flange and flexible beams which are symmetrically arranged at the two ends of the flange. The precise force transmission component can eliminate force interference in other directions and achieve loading of pull force and pressure in the two directions. The electromechanical type force source device is compact in structure and high in response speed, the defects that a traditional force source device is huge in mechanism, low in loading efficiency and troublesome in later-period maintaining are overcome, and the electromechanical type force source device can be widely applied to in-situ calibration of a large-size and six-component balance and automatic loading systems of other balances.

Description

technical field [0001] The invention relates to an electromechanical high-precision force source device capable of bidirectional loading, which is applied to the in-situ calibration of a six-component force measuring balance on a solid rocket ramjet test bench. Background technique [0002] With the development of propulsion technology, pure thrust measurement can no longer fully reflect the aerodynamic characteristics of the tested product during the ground test run of the solid rocket ramjet engine and the launch matching verification test. Large-size, heavy-duty six-component force-measuring balance. Any balance must be calibrated within a certain period of time during use to ensure the reliability of the force balance. To calibrate a balance with such a large size and a large load, it is necessary to develop a device capable of in-situ calibration (calibration without moving the balance), and the core of the calibration device is the device that generates the calibratio...

AI Technical Summary

Problems solved by technology

Due to the use of fluid as the driving medium, there are prone to problems such as medium leakage, which makes the reliability of the power source device relatively poor, and the maintenance and repair of hydraulic cylinders, air cylinders and their ancillary equipment is troublesome

The traditional electromechanical force source device has fast response and high efficiency, but the loading accuracy is relatively poor, and special tooling is required to switch from pressure loading to tension loading. This device is not suitable for providing calibration force for automatic calibration of balances.

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