GrabCAD 模型信息
Plate And Cylindrical Piston Cap For Hydraulic Pumps · 模型 118816
Definition and Basic Function: Plate Cap: The plate cap is the flat top component that covers and seals the piston chamber in a hydraulic pump. It acts as the front inner surface that contacts the oil and provides a sliding surface for the valves or distribution discs. Cylindrical Piston: This is the main moving component inside the pump that sucks and compresses the hydraulic oil through its reciprocating motion inside the cylinder. Calculations and engineering analysis: A) Disc cover load: Stress analysis: 1. **Bending stress from internal pressure:** σ_b = (P × r²) / (2 × t²) Where: σ_b = bending stress P = operating pressure (Pascal) r = cover radius (m) t = cover thickness (m) 2. **Shear stress in bolts:** τ = (P × A) / (n × A_b) Where: τ = Shear stress A = Cover area n = Number of bolts A_b = Bolt cross-sectional area 3. **Maximum allowable displacement:** δ_max = (P × r⁴) / (64 × D) D = (E × t³) / [12 × (1-ν²)] Where: E = modulus of elasticity ν = Poisson's ratio Critical pressure calculations: Buckling Pressure: P_cr = (k × E × t²) / [r² × (1-ν²)] Where: k = stabilizing factor (0.3-0.7) E = elasticity factor t = thickness r = radius b) Analysis of the piston: Force calculations: 1. **Hydraulic force on the piston:** F = P × A Where: F = Force (Newtons) P = Operating pressure (Pascal) A = Piston area = π × d² / 4 2. **Compressive stress:** σ_c = F / A σ_c must be ≤ 0.6 × σ_y Where σ_y = Yield stress of the material 3. **Buckling analysis:** Euler load: P_cr = (π² × E × I) / (L_e²) Where: I = moment of inertia = π × d⁴ / 64 L_e = effective length (depending on mounting conditions)
- 格式
- SOLIDWORKS、Rendering
- 分类
- Components、Fixtures、Robotics
- 标签
- 未标注
- 数据更新
- 2026-10-07T19:31:30Z
