Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Pretightening-force-adjustable nut automatic installing and detaching device

An automatic device and pre-tightening force technology, applied in laying tracks, roads, tracks, etc., can solve problems such as time-consuming and laborious, low work efficiency, and sleeper damage.

Inactive Publication Date: 2019-08-20
KUNMING UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the long-term use of railway sleepers, due to natural settlement and vibration, some railway sleepers sink, and individual sleepers are damaged, which needs to be replaced in time. During the sleeper replacement process, it needs to be removed. The nuts attached to the four bolts of the broken sleeper should be pulled out to prevent the ballast at the sleeper end from collapsing. After replacing the good sleeper, install the four nuts on the four bolts and pre-tighten the four bolts manually. Turning a single nut is time-consuming and labor-intensive, and the work efficiency is low. It is difficult to achieve the same pre-tightening force of the four nuts

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
  • Pretightening-force-adjustable nut automatic installing and detaching device
  • Pretightening-force-adjustable nut automatic installing and detaching device
  • Pretightening-force-adjustable nut automatic installing and detaching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] see figure 1 Shown, the present invention is made up of self-propelled track car 1, four nut synchronous assembly and disassembly multifunctional devices 6, rechargeable battery pack and inverter 18 and hydraulic system and control system box 19, rechargeable battery pack and inverter 18 are oil pumps and the control system provide power, and the hydraulic system and the control system box 19 are provided with an oil tank, an oil pump, a hydraulic control system and an automatic control system;

[0058] see figure 1 and image 3 As shown, the self-propelled rail car 1 is made up of a first driving device 10, a driven wheel assembly 11, a vehicle frame 13 and six equal-strength cantilever beams 16, and the vehicle frame 13 is provided with a first crossbeam 131 and a second crossbeam 132 And two longitudinal beams 133, rechargeable battery pack and inverter 18 and hydraulic system and control system box 19 are arranged on the two longitudinal beams 133 of rail car;

...

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 pretightening-force-adjustable nut automatic installing and detaching device which is composed of a self-propelled railway vehicle, a four-nut synchronous installing and detaching multifunctional device, a charging battery pack and inverter and a hydraulic system and control system box. The charging battery pack and inverter provides power for an oil pump and a control system. An oil tank, the oil pump, a hydraulic control system and an automatic control system are arranged in the hydraulic system and control system box. The pretightening-force-adjustable nut automatic installing and detaching device can be automatically and quickly aligned with a working position; four nuts are consistent in pretightening force, and the pretightening-force-adjustable nut automatic installing and detaching device can adapt to installation of nuts with different pretightening force requirements; sleeper end ballast collapse can be effectively stopped, and a guarantee is provided for quick replacement of a new sleeper; the railway vehicle can move back and forth on a railway track, so that train passage is avoided; and control is automatic, operation is convenient, and nut installation and detachment and sleeper end ballast collapse stop work efficiency is high.

Description

technical field [0001] The invention relates to a railway maintenance machine, in particular to an automatic device for installing and disassembling nuts with adjustable pretightening force. Background technique [0002] During the long-term use of railway sleepers, due to natural settlement and vibration, some railway sleepers sink and individual sleepers are damaged, which needs to be replaced in time. During the sleeper replacement process, it needs to be removed The nuts attached to the four bolts of the broken sleeper should be pulled out to prevent the ballast at the sleeper end from collapsing. After replacing the good sleeper, install the four nuts on the four bolts and pre-tighten the four bolts manually. Turning a single nut is time-consuming and laborious, and the work efficiency is low. It is difficult to achieve the same pretightening force of the four nuts. Contents of the invention [0003] The object of the present invention is to provide an automatic devi...

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): E01B29/28E01B29/10E01B29/22
CPCE01B29/10E01B29/22E01B29/28
Inventor 段维华于向军孙中朝王德武韦仕玲
Owner KUNMING UNIV
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
Eureka Blog
Learn More
PatSnap group products