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

Shield tunneling machine single piston rod symmetric hydraulic cylinder series connection propulsion system

A technology of hydraulic cylinder and single piston rod, which is used in mining equipment, earth-moving drilling, tunnels, etc., can solve problems such as affecting equipment life, large throttling loss, worsening construction environment, etc., achieving small energy loss, convenient installation and maintenance, The effect of simple system structure

Pending Publication Date: 2019-03-26
SHANDONG JIAOTONG UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing propulsion hydraulic system adopts the valve control method, which not only has a large throttling loss, wastes energy, affects the life of the equipment, but also deteriorates the construction environment and brings many unfavorable factors

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
  • Shield tunneling machine single piston rod symmetric hydraulic cylinder series connection propulsion system
  • Shield tunneling machine single piston rod symmetric hydraulic cylinder series connection propulsion system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Attached below figure 1 And embodiment further illustrate the present invention.

[0014] like figure 1 As shown, the present invention comprises servomotor 1, quantitative pump 2, safety valve 5, one-way valve 10, charging oil pump 12, motor 13 and several partition propulsion systems with the same structure; Each partition propulsion system is provided by the same quantitative pump. Source power; each partition propulsion system consists of several symmetrical single-piston rod hydraulic cylinders with the same structure, including the first hydraulic cylinder 7, the second hydraulic cylinder 8, etc.; the output shaft of the servo motor 1 is rigid to the input shaft of the quantitative pump 2 Connection, the oil port at the left end of the quantitative pump 2 is respectively connected with the oil port P1 at the left end of the first hydraulic cylinder 7 and the oil inlet port of the safety valve 5 through the oil pipe 3, and the oil port at the right end of the quan...

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

A shield tunneling machine single piston rod symmetric hydraulic cylinder series connection propulsion system mainly includes a servo motor, a metering pump, a safety valve, an oil supplementing pumpand a partition propulsion systems formed by a plurality of single piston rod symmetric hydraulic cylinders with the same structure. An output shaft of the servo motor is rigidly connected with an input shaft of the metering pump, a left end oil port of the metering pump is respectively connected with a left end oil port of a first hydraulic cylinder and an oil inlet of the safety valve through anoil pipe, and a right end oil port of the metering pump is connected with a right end oil port of a second hydraulic cylinder. A right end oil port of the first hydraulic cylinder is connected with aleft end oil port of the second hydraulic cylinder through an oil pipe. The system adopts single piston rod symmetric hydraulic oil cylinder series connection, can achieve synchronous control of partition propulsion hydraulic cylinders easily, and is very suitable for small and medium-sized shield tunneling machines. A direct drive volume speed control system with pump control cylinders is adopted, the energy loss is small, and the energy-saving effect is remarkable. The propulsion system shares an oil source, and the system is simple in structure and convenient to install and maintain.

Description

technical field [0001] The invention relates to a hydraulic propulsion system of a shield tunneling machine, which belongs to the technical field of hydraulic transmission. Background technique [0002] The shield tunneling machine is a kind of integrated mechanical, electrical, hydraulic and other technologies dedicated to the construction of underground tunnels. It is a typical multi-system complex electromechanical and hydraulic integrated equipment, which can realize the mechanization and automation of tunnel excavation. The hydraulic propulsion system of the shield tunneling machine provides the driving force for the advancement of the shield, which is usually completed by a certain number of hydraulic cylinders distributed along the circumferential direction of the shield. Individual control is required to meet the requirements of curve excavation, deflection correction, and individual retreat during segment assembly. At the same time, the pressure and flow of the prop...

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): E21D9/06
CPCE21D9/0621
Inventor 臧发业陈正洪王保平戴汝泉尹修杰杨仁明
Owner SHANDONG JIAOTONG UNIV
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