Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotary motor control system and control method thereof

A technology of rotary motor and control system, which is applied in the direction of earth mover/shovel, construction, etc., can solve the problems of complex mechanical structure and high cost, and achieve the effect of ensuring the safety of the system

Pending Publication Date: 2019-07-19
SHANGHAI SANY HEAVY IND
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the hydraulic control method, the mechanical structure is more complicated and the cost is higher

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
  • Rotary motor control system and control method thereof
  • Rotary motor control system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0049] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specif...

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 relates to the technical field of engineering machinery, in particular to a rotary motor control system and a control method thereof. The rotary motor control system comprises a rotary motor, a main pump, a pilot pump, an oil tank, a brake piston cylinder, a first reversing valve, a second reversing valve and an electric control handle, wherein the first reversing valve, the second reversing valve and the electric control handle are connected with a controller; the electric control handle is connected with the first reversing valve and the second reversing valve to send control signals to the first reversing valve and the second reversing valve; the main pump is connected with the pilot pump, both the main pump and the pilot pump are connected with the first reversing valve,and the rotary motor is connected with the first reversing valve to supply oil to the rotary motor through the main pump; the second reversing valve is connected with the pilot pump and a rod cavity of the brake piston cylinder so as to supply pilot oil to the rod cavity through the pilot pump and send the pilot oil in the rod cavity into the oil tank; and the brake piston cylinder is connected tothe rotary motor for braking the rotary motor. Through the electronic control technology, the problem that a complex mechanical structure of an existing excavator rotary mechanism caused by braking of the rotary mechanism is solved.

Description

technical field [0001] The present application relates to the technical field of engineering machinery, in particular to a control system and a control method for a rotary motor. Background technique [0002] Excavator, as one of the most common construction machinery, has a large volume and mass, and belongs to large moment of inertia mechanical equipment. In order to prevent the excavator from turning on the sloped road due to its own gravity turning and the external wind force and other factors, to ensure its stability during parking and reliability of operation, the braking of the turning mechanism must be considered. However, due to the seal leakage of the hydraulic system, simple hydraulic braking cannot perform long-term reliable limit braking, so mechanical braking must be considered. [0003] The mechanical brake is completed by a mechanical brake, and its main components are a brake cylinder, a friction plate, a separation plate and a brake spring. The internal s...

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): E02F9/22
CPCE02F9/22E02F9/2246E02F9/2264E02F9/2267E02F9/2292
Inventor 刘登科李中才涂晓丹
Owner SHANGHAI SANY HEAVY IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com