heavy gear

Through the bending fatigue test and corresponding numerical simulation, it is obtained that the fracture of the tooth root is […]

After setting the corresponding analysis conditions, enter the solution analysis stage. After the calculation, you can get the Mises equivalent […]

Cracks will first appear at the tooth root of the gear, because when the gear is running, the meshing other […]

The model used for numerical simulation of fatigue crack growth is the same as the compact tensile specimen of 42CrMo […]

By referring to the national standard GB / t6398-2000 test method for fatigue crack growth rate of metallic materials, the […]

As can be seen from the figure, when the stress ratio r = 0.1 and the fatigue crack length α […]

Elber proposed the concept of crack closure, and used the theory of crack closure to explain the fatigue crack growth […]

Heavy duty gear is the core component of large equipment transmission. It is widely used in mining, metallurgy, building materials, […]

Taking low-speed and heavy-duty gear as the research object, the fatigue crack propagation and fatigue fracture of gear teeth are […]

Before carrying out the bending fatigue test, it is necessary to determine the stress level of the test. Two of […]

Fatigue cracks often occur when the component is under the condition of alternating load for a long time. The initial […]

The fatigue crack growth mechanism of 42CrMo steel was studied by fatigue crack growth test. The law of fatigue crack […]

Fatigue fracture is the surface formed by the fatigue fracture of the test sample or component during the test or […]

With the continuous improvement and innovation of fatigue crack testing methods, the research on small fatigue cracks has gradually changed […]

Wu Zhenpeng and others took the helical gear as the research object, modeled the helical gear, simulated the crack propagation […]

Robert Basan proposed the mathematical model of slip line contact and the calculation model of multiaxial fatigue life based on […]

Although the strength of mechanical gear bearing capacity does not entirely depend on gear hardness, improving gear hardness is still […]

Because the mechanical operation is mostly heavy load, medium and low speed transmission, most of them start frequently and often […]

Comparison of machinability and forgeability between Ni Cr and Ni Cr Mo steels The machinability of different materials is mainly […]

Other countries in the world mainly use Cr Ni and Cr Ni Mo carbon steel. Compared with Mn Cr steel […]

Gear is a kind of mechanical element with continuous meshing transmission of motion and power on the rim, which plays […]

Tooth wear is one of the main failure forms of low speed and heavy load gear transmission. H. Winter has […]

The important parameters to ensure the load-bearing capacity of low-speed and heavy-duty hard face gear are: enough central strength and […]

It is very important to choose the hardening heat treatment method of low speed and heavy load gear reasonably. The […]

The main damage form of gear in soft tooth surface rolling mill is severe plastic deformation of gear surface, which […]

Using normalizing big gear and quenching and tempering small gear, the tooth surface after use can be extruded into mirror […]

As the cement mill, mine hoist and other soft tooth surface reducer gear, the main problem is to eliminate early […]

When gears work, they bear two kinds of stress, so there are few two kinds of failure. One is that […]

There are three ways to improve the bearing capacity of gears, namely, ① improving the structure of reducer, such as […]

The low-speed and heavy-duty gear assembly established by SolidWorks is exported to. Step format and imported into ANSYS Workbench. The […]