Traditional Culture Encyclopedia - Photography and portraiture - What are the parts of hydraulic support for coal mine? Is there a schematic diagram of the structure?
What are the parts of hydraulic support for coal mine? Is there a schematic diagram of the structure?
1. Top beam function: supporting the top plate; overcut
2. The role of the shield beam: supporting the roof; Top cutting; Maintain a certain working space; Inter-frame sealing; The gangue blocking and shielding performance is good.
3. connecting rod? Bear the caving gangue load from the shield beam and the load caused by the horizontal movement of the roof.
4. a fullback? Function: eliminate the gap between adjacent supports and prevent caving gangue from entering the supporting space; As a guide plate in the process of moving the bracket; Prevent the support from toppling after landing; Adjust the spacing of brackets.
5. base?
6, coal wall spalling device or play the role of shielding baffle when spalling.
7, column, jack
8, control valve, hydraulic control one-way valve, safety valve
- Previous article:Photographic gear conversion
- Next article:Complete detailed information of Pengjie Town
- Related articles
- How to make a geographical sand table
- What do digital designers in the studio need to learn?
- Jiangxi Tujia Tourism Xiangxi Tujia Tourism
- May Day copywriting, what inspirations have these 17 inspirations given to you?
- Core muscle group training 4 abdominal muscle frontal bypass to prevent injury
- Northeast Wind Movie Farewell to Heaven in Northeast China
- Which wedding photo is good in Weihai?
- Facilities of Guangzhou Cultural Park Exhibition Hall
- How about Foshan Spark Education and Training Institution?
- What is the Business Training Department?