News

• 29

  MAY

  ROHN Hydraulics tells you what are the requirements for the installation of hydraulic system steel pipes?

  The hydraulic system is composed of various hydraulic components. The hydraulic components are organically connected by pipes, joints and integrated valve blocks to form a complete hydraulic system. Therefore, whether the hydraulic pipeline is installed correctly, firmly and neatly will have an important impact on the performance of the hydraulic system. 1. Check the quality of the tube. It is necessary to find out whether the material, size and quality of the pipe meet the design requirements; check whether the appearance of the pipe is severely flattened or bent; check whether there is corrosion on the inner and outer wall surfaces of the pipe, and whether there are defects such as cracks on the outer wall. If there is a tube that does not meet the requirements of the regulations or has a serious defect, it cannot be used. 2. Measure the piping size. The position of hydraulic pump station, hydraulic valve table, main engine, auxiliary engine and related parts should be carefully measured and strive for perfection. For pipes with many bending parts and complex shapes between two joints, a sample should be made first, and then the pipe should be cut according to the size or template. 3. The installation pipeline must be reasonably arranged according to the design drawings or the actual location. 4. Air blow the pipes that have been pickled during installation. 5. The joints of the pipes must be connected firmly, and the joint surfaces must be tightly sealed, and there must be no leakage

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• 09

  APR

  Application of high pressure circulating water cleaning system for hydraulic support

  The reliability of hydraulic support has a great influence on the safety production of fully mechanized working face. If the reliability of the support is poor and the failure occurs frequently in use, it is necessary to invest a lot of manpower and material resources for repair and maintenance. However, in the underground repair of the support, especially the replacement of parts, there are many disturbing factors in the poor working environment. Therefore, the hydraulic support in the well overhaul must ensure the quality of overhaul, and the support in the well before overhaul, the most important step is to clean the surface of the residual slime and rust. At present, the support repair units in our country generally use the method of manual cleaning and water washing to clean the hydraulic support. This method must have 2-5 people working together, and has the disadvantages of high labor intensity, large water consumption and low efficiency. Some enterprises try to use emulsion pump as power, although the cleaning efficiency has been improved, but the emission pollution is very serious, which will have a great impact on the environment. Based on the above reasons, the industry urgently needs to find a better way to clean the hydraulic support, which has a very urgent need and practical significance for the repair of coal mine hydraulic support. Therefore, after repeated demonstration, the technicians finally decided to use the high-pressure circulating water cleaning system developed and produced by Beijing degaojie Cleaning Equipment Co., Ltd. to clean the hydraulic support.

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• 30

  MAR

  What is a USB Cable and USB Cable Construction

  What is a USB Cable? The term USB stands for "Universal Serial Bus". USB cable assemblies are some of the most popular cable types available, used mostly to connect computers to peripheral devices such as cameras, camcorders, printers, scanners, and more! USB Cable Construction

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