Mine single hydraulic prop
A single hydraulic prop, mine-used technology, applied in the direction of props/supports, mining equipment, earthwork drilling and mining, etc., can solve the problems of low joint strength, fear of collapse of live posts, slow return of live posts, etc., to achieve enhanced combination Strength, reduce maintenance chance, prolong service life
Inactive Publication Date: 2015-11-04
杨学恒
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002]The existing plunger-suspension mining single hydraulic prop adopts plunger-type technology, and the high-pressure sealing surface is set on the outer surface structure of the live post, and the live post is exposed to the air. The existing single hydraulic prop is chrome-plated or chemically plated on the outer surface of the live post. This method can increase the hardness of the outer surface of the live post to a certain extent and improve the performance of the live post. However, the coating is easy to fall off, and the live post is afraid of being shot. collapsing and polluting when manufactured
Another type of live column is composite steel pipe, and the layer-base interface between the live column and the stainless steel sleeve is bonded with polyurethane adhesive, which has low bonding strength and low outer surface hardness (183HB)
The live column is made of composite steel pipes to form multiple layers, layer-base interface, low joint strength, easy to peel off, low surface hardness, fear of being shot, the light one will cause the live column to return slowly, and the severe one will not return to the column, and the support will leak. Will soon enter the overhaul period
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] refer to figure 1 And attached Figure 5 , shows a schematic diagram of the connection structure between the live post and the sleeve in the prior art, wherein the live post 31 is covered with a stainless steel sleeve 32, and a limit ring 33 is provided at the lower end of the live post 31. In order to improve the connection between the stainless steel sleeve 32 and the live post 31 For bonding strength, an adhesive, such as polyurethane adhesive, is applied between the stainless steel sleeve 32 and the live post 31 . Although this technical scheme also protects the live column 31 by adding a stainless steel sleeve 32, the bonding strength between the stainless steel cover 32 and the live column 31 is low, and it is easy to cause falling off during use, which greatly reduces the use of the hydraulic prop. life.
[0023] The specific structure of this embodime...
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
Login to view more Abstract
The invention discloses a single hydraulic prop for mines. The single hydraulic prop for mines include an oil cylinder, movable rods, sleeves, a top cover, a base, a three-use valve and handles, wherein movable rods are sleeved in the sleeves, the base is arranged at the one end of the oil cylinder and handles are arranged on the other end of the oil cylinder, the movable rods are provided with installation portions. Connection portions which match with installation portions in an embedded mode are arranged on sleeves. Sleeves are sleeved outside the movable rods of the single hydraulic prop for mines by connection portions so that the movable rods are protected effectively, damages to the single hydraulic prop due to firecracker are avoided, sleeves have corrosion resistance, the service life of the single hydraulic prop can be extended greatly and environmental pollution is avoided during manufacturing.
Description
technical field [0001] The invention relates to a hydraulic prop, in particular to a single hydraulic prop for mining. Background technique [0002] The existing plunger suspension mining single hydraulic prop adopts plunger technology, the high-pressure sealing surface is set on the outer surface structure of the live post, and the live post is exposed to the air, and the existing single hydraulic prop is chrome-plated on the outer surface of the live post Or chemical plating, this method can increase the hardness of the outer surface of the live column to a certain extent, and improve the performance of the live column, but the coating is easy to fall off, and the live column is afraid of being broken and will cause pollution during manufacture. Another type of live column is composite steel pipe, and the layer-base interface between the live column and the stainless steel sleeve is bonded with polyurethane adhesive, which has low bonding strength and low outer surface har...
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
Login to view more Patent Type & Authority Patents(China)
IPC IPC(8): E21D15/44E21D15/51
Inventor 杨学恒
Owner 杨学恒
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
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