A Dimension Optimization Method for Right Angle Bend Channel of Hydraulic Manifold Block

Abstract

The disclosure relates to a size optimization method for a right-angle bend flow channel of a hydraulic manifold, which includes the following steps: obtaining the size constant when designing the right-angle bend flow channel, given the wall thickness variable of the arc transition flow channel, and the inner diameter R of the inner wall of the flow channel 1 variable and outer diameter R 2 The initial value of the variable is used to complete the three-dimensional modeling; the three-dimensional model is imported into the simulation software, and the fluid-solid coupling simulation is performed according to the preset working parameters; the fluid simulation results in the fluid-solid coupling simulation results are used as a reference to adjust the R 1 and R 2 In order to reduce the internal space of the flow channel where the vortex phenomenon occurs in the simulation, the simulation verification and further adjustment of the variable size can obtain the optimized R of the flow channel pressure loss 1 with R 2 Numerical value; with reference to the solid stress cloud image in the fluid-solid coupling simulation results of the final model of the inner wall of the flow channel, the thickness of the wall surface of the flow channel is adjusted to establish a flow channel model that meets the strength requirements and reduces the pressure loss.

Description

technical field [0001] The present disclosure belongs to the technical field of component size optimization, and in particular relates to a size optimization method for a right-angle curved flow channel of a hydraulic manifold. Background technique [0002] The statements herein merely provide background related to the present disclosure and do not necessarily constitute prior art. [0003] The hydraulic manifold commonly used in the hydraulic system realizes the connection of multiple hydraulic components through the internal staggered turn arrangement of the flow channel structure. In the process of processing right-angle curved runners, the traditional processing method is to drill holes on the cast or forged square material according to the hydraulic schematic diagram so that the runners intersect in the turning and fork areas, and process machining holes will inevitably be formed at the intersection. , resulting in the generation of vortices, causing pressure loss of h...

AI Technical Summary

Problems solved by technology

In the process of processing right-angle curved runners, the traditional processing method is to drill holes on the cast or forged square material according to the hydraulic schematic diagram so that the runners intersect in the turning and fork areas, and process holes will inevitably be formed at the intersections. , resulting in the generation of vortex, causing the pressure loss of hydraulic oil, resulting in energy dissipation

In addition, the redundancy of hydraulic manifold materials far exceeds the requirements for strength, resulting in waste of design space and processing materials

The excessive pressure loss, weight and volume of the hydraulic manifold are not suitable for application scenarios that require lightweight and high efficiency

[0004] The inventors have learned that the processing hole is the main cause of pressure loss. In the composite manufacturing method of adding and subtracting materials, by replacing the right-angle turning part of the flow channel with the processing hole with a circular arc transition flow channel, the pressure loss can be improved to a certain extent. Reduce the pressure loss, but the flow channel with a constant circular cross section will also produce vortex phenomenon at the inner and outer diameter of the arc, the wall surface cannot fit the flow of the internal fluid to the greatest extent, and the above scheme does not take into account the material redundancy outside the flow channel. remaining questions

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