This standard specifies the factory test method and inspection rules for static coal plows for longwall mining face in coal mining underground.
This standard is applicable to static coal plows used in longwall coal mining face (hereinafter referred to as “plow”).
2 Normative References
The following standard contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, all the editions listed are valid. All standards are subject to revision, and all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these standards apply.
GB/T 6404-86 Test Method for Sound Power Level of Gear Device Noise
MT/T 101-93 Specification for Gearbox for Scraper Conveyor
MT/T 105-93 General Technical Conditions For Gearbox for Scraper Conveyor
MT 208-89 Hydraulic Coupling for Scraper Conveyor
3 Test for the Gearbox of Plow Unit
For the test of the gearbox of plow unit (hereinafter referred to as “gearbox”), refer to the standards mentioned in Annex A (Informative).
3.1 Test preparation
After each gearbox is assembled, place it horizontally on the test bench, inject the oiliness and oil mass required by the design, and switch on power supply. If a cooling system is installed, the cooling water shall be connected to the water pressure and flow rate required by the design.
MT/T 689.1-1997 The following standards are cited：
