At the same time, the requirements on these components increased in terms of load capacity and operational behavior. This trend is still unbroken and has triggered new developments in the machinery and tool sector (20). The increasing competition with low-wage countries in the global market ...
5 is 361L stainless steel [17], with higher strength than TSR821 photosensitive resin in the reference [16]. Based on the previous studies [1], [2], an improved test rig was adopted to execute the experiment. The experimental schematic diagram is shown as Fig. 6, and the test rig is...
METHOD AND DEVICE FOR PREVENTING EXCESSIVE WEAR IN GEARS, involving lubricating the contact point between the wheels (1) of a gear (2), injecting lubricant into said point via parts (3) housed in t
Then it was placed on a test stand, the diagram of which is presented in Fig. 11. The volumetric efficiency of the micropump was tested with the gear systems listed above, and the results are shown in Fig. 12. The body of the pump proved to co-operate correctly with all the ...
In terms of amplitude, the tangential vibration of the two pairs of gears is greater than the axial vibration, and the torsional vibration of the driving gear is greater than that of the driven gear. Comparing Figure 8 with Figure 9, the vibration amplitudes of the first-stage gear pair are...
This increases local contact stress from 727.8 MPa to 878.7 MPa, and it is still less than the contact fatigue strength limit of gear material 16MnCr5 with surface hardness 59 to 63 HRC, 1450 MPa [25]. Figure 1. Schematic diagram of two-stage gearbox. Table 1. Specification of two-...
Therefore, the residual stresses of the gear root were characterized by measuring the residual stresses of the contact point position on the gear with a 30° tangent. Figure 4. Dangerous cross-section of tooth root bending stress ((a) schematic diagram; (b) actual picture) [25,26,27]. ...
Therefore, displacement machines are always described and rated in terms of their efficiency. In Figure 2, the entire operational process of an external gear pump is illustrated. Figure 2. Energetic chain of effects for the external pumps in use. 𝐼I—electrical current, 𝑈U—electrical ...
The model has been created using a Bond Graph diagram. This is a graphical representation of energy transfer and storage that can be applied to any physical system. Regarding hydraulic systems, which are basically treated with a model of concentrated parameters, a good summary can be found in ...
show a surprisingly high load carrying capacity regarding scuffing. Additionally, two wear tests based on DGMK 377-01 were conducted with one sample fluid. A high risk of sliding wear was detected. Additionally, MTM and SRV measurements were conducted with different polymers to optimize the ...