Hydraulic support and bottom lifting device thereof

A hydraulic support and jack technology, which is used in mine roof support, mining equipment, earthwork drilling and other directions, can solve problems such as easy damage, and achieve the effect of reducing height space and meeting the needs of bottom lifting.

Active Publication Date: 2011-06-08
益阳市科技成果转化服务中心 +1
View PDF9 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] When the hydraulic support and the mining and transportation equipment are not at the same level, the scraper conveyor connected to it is on the floor higher than the plane of the hydraulic support, and the front part of the push rod 13 is suspended, and the scraper conveyor will give the push rod 13 a

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
  • Hydraulic support and bottom lifting device thereof
  • Hydraulic support and bottom lifting device thereof
  • Hydraulic support and bottom lifting device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The core of the present invention is to provide a bottom lifting device, which only occupies a small longitudinal space, can be applied to a bottom-sealed base, and improves the stress of the pushing jack and the push rod, prolonging its service life. Another core of the present invention is to provide a hydraulic support including the above-mentioned bottom lifting device.

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Please refer to image 3 and Figure 4 , image 3 It is a schematic structural diagram of the bottom lifting device provided by a specific embodiment of the present invention; Figure 4 for image 3 The schematic diagram of the structure of the bottom lifting device in the bottom lifting state is shown.

[0033] As shown in the fig...

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 bottom lifting device of a hydraulic support, comprising a bottom lifting jack and a crow plate, wherein, the external end part of the crow plate and a base are hinged with a rotation shaft; the internal end part of the crow plate suspends on air; the two ends of the bottom lifting jack are respectively hinged with the base and the middle part of the crow plate; the crow plate comprises a horizontal part parallel to the lower flat surface of the base of the hydraulic support; and the range of the included angle between the axis of the bottom lifting jack and the horizontal part parallel to the lower flat surface of the base is 0-45 degrees. The bottom lifting device provided by the invention only occupies small longitudinal space, can be suitable for the bottom-sealing-type base, the enforced condition of pushing and moving the jack and a push rod is improved, and the service life of the bottom lifting device is prolonged. The invention also discloses a hydraulic support comprising the bottom lifting device.

Description

technical field [0001] The invention relates to the technical field of coal mine machinery, in particular to a bottom lifting device for a hydraulic support. In addition, the present invention also relates to a hydraulic support comprising the above-mentioned bottom lifting device. Background technique [0002] my country is the main coal-producing country in the world. The total number of coal mines exceeds the sum of the number of coal mines in all other countries in the world. Comprehensive mechanized coal mining has also become the main method of mining coal seams. [0003] The hydraulic support is the support equipment for comprehensive mechanized coal mining. Its main function is to support the roof of the stope, maintain the working space of the shearer and scraper conveyor and other equipment, and promote the forward movement of the coal mining equipment and itself. The front end of the moving frame of the hydraulic support is generally connected with equipment such...

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
IPC IPC(8): E21D23/08
Inventor 张成云周俊史向阳
Owner 益阳市科技成果转化服务中心
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