Load torque control system and load torque control method

A load torque and control system technology, which is applied in the load torque control system to control the load torque of long shafting or elastic load mechanical equipment, and can solve problems such as twisting, mechanical equipment wear, and transverse cutting.

Active Publication Date: 2014-06-04
SIEMENS FACTORY AUTOMATION ENG
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor will reduce the output torque and transmit it to the end of the shaft system, and the end of the shaft system will be blocked again; if the ordinary torque control method is adopted, this uncontrolled rotation fluctuation will be transmitted periodically, and axial torsional vibration, radial Out-of-control problems such as directional resonance, stall, reverse, etc., resulting in mechanical equipment wear, twisting, transverse cutting and other failures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Load torque control system and load torque control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail. In the following embodiments, the present invention is described by taking drilling as an example, but it should be understood that the present invention is by no means limited to the application of such drilling, but can be applied to any long shaft system.

[0045] For example, in the process of oil drilling, the drill bit is several thousand meters underground, and the middle is connected by the drill pipe, which is very elastic. Due to the reason of the formation, the drill bit may be stuck and cause a stall. Due to the length and elasticity of the drill pipe, so This problem cannot be found immediately on the ground, and the top drive motor will continue to rotate at the set speed; this part of the energy is absorbed and stored by the drill pipe, and will eventually be transmitted to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a load torque control system which includes an input unit, through which a rotation speed set value of a motor is input; a detection unit which includes a torque sensor for detecting the torque actual value of the motor; a calculation unit which calculates a torque change rate according to the torque actual value detected by the detection unit and compares the torque change rate calculated by the calculation unit and a preset value and changes the rotation speed set value when the torque change rate is larger than the preset value and outputs the changed rotation speed set value to a speed controller of the motor. Through adoption of the load torque control system, the actual torque, rotation speed and speed transient fluctuation of a mechanical device can be monitored in a real-time manner and the system adjusts the speed automatically so that stable transmission and release of energy are realized and the security and service life of the system are improved.

Description

technical field [0001] The present invention relates to the field of mechanical equipment control, in particular to a load torque control system for long shafting or elastic load mechanical equipment; in addition, the present invention also relates to a load torque control system for long shafting or elastic load mechanical equipment Methods. Background technique [0002] During the operation of long shaft or flexible load mechanical equipment, when the load torque suddenly increases or decreases and the speed is unreasonable, it is easy to cause mechanical equipment damage and other failures. Seriously affect the safety of equipment and reduce the service life. [0003] Long shafting or elastic load mechanical equipment needs to maintain a stable rotation speed during operation. When the equipment suddenly accelerates, due to the equipment's own elasticity and large moment of inertia, the equipment shafting will absorb the energy transmitted by the motor to the shaft drive...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00
Inventor 吕春野刘立伟
Owner SIEMENS FACTORY AUTOMATION ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap