large gear

The existing research on the subdivision machining of large gear is mainly aimed at large cylindrical gear. Niu Yanfang and […]

Steel casting defects are common. Large gears are steel castings in terms of material, and various defects often appear. Before […]

The method of electric arc furnace primary smelting + LF refining is adopted for liquid steel smelting. In order to […]

Large gear is the core transmission part of mining mill, and its reliability is related to the safety and stability […]

The involute profile is involute, and the helical profile is involute. From the perspective of engineering, in order to understand […]

Based on the general guiding ideology and on the basis of fully considering the characteristics and difficulties of the proposed […]

Based on the large wheel processing equipment (large gear hobbing machine), the precision measurement of large gears is studied. The […]

The main measurement methods of large gears are summarized. Based on the analysis, it is concluded that on-machine measurement has […]

The characteristics and measurement difficulties of large-size gears are analyzed, which can be divided into the following aspects: (1) Oversized […]

Generally, the gear whose parameters, size and weight are large enough to exceed the conventional conditions is called large gear. […]

The particularity of large gear and its measurement is analyzed in detail, and the principle and key technology of gear […]

The comprehensive measurement method and technology of large gears are still developed from the comprehensive measurement of medium and small […]

The side measuring instrument is positioned and installed on the machine tool (generally installed on the tool holder) to realize […]

Aiming at the limitations of desktop measuring instrument, the upper measuring instrument has a great change in the measurement idea. […]

Desktop instrument the desktop measuring instrument used for large gear measurement is basically the amplification of the desktop measuring instrument […]

Gear is famous for its complex shape all the time, and its various error inspection items are not only various, […]

Integral multistage centrifugal compressor is widely used in energy, air separation and chemical industry due to its compact structure, strong […]

In industry, the gear with diameter over 3000mm is called super large gear, which is the most widely used transmission […]

From the configuration principle, the accuracy characteristics of such machine tools can be obtained: ① The tooth profile error is […]

From the point of view of the purpose of designing super large modified gear (medium hard tooth surface and medium […]

According to the characteristics and cutting pattern of hobbing super large modified gear, the maximum wear of hob occurs at […]

It can be seen from practice that in hobbing large modulus multi tooth number gears, because of the large cutting […]

The principle of axial displacement method: (1) when the hob moves along the cutter bar, the thread of cutter teeth […]

Spray lubrication Large open gear adopts spray lubrication technology, which requires not only reasonable selection of lubricant but also reasonable […]

The working condition of large open gear is very bad. In order to meet the operation characteristics of open gear, […]

Since the main working conditions of open gear are heavy load and low speed, it is necessary for open gear […]

(1) Performance comparison of different base oils for open gear lubricants. (2) Characteristics of different types of lubricant base oils […]

(1) Asphalt based products. It is directly extracted from crude oil and contains extreme pressure additives and organic solvents. In […]

Failure mode of open gear The main failure modes of open gear are pitting corrosion, spalling, plastic deformation, gluing, broken […]