What are the hydraulic cylinders design steps?
1. Master the original data and design basis, including:
1. The purpose and working conditions of the host;
2. The structural characteristics, load conditions, stroke size and movement requirements of the working mechanism;
3. The selected working pressure and flow rate of the hydraulic system;
4. The actual situation of materials, accessories and processing technology;
5. Relevant national standards and technical specifications, etc.
2. According to the action requirements of the host, select the type and structure of the hydraulic cylinder.
3. According to the external load force that the hydraulic cylinder can bear, including gravity, external mechanism movement friction force, inertial force and working load, etc., determine the change law of the hydraulic cylinder load on each stroke stage and the power value to be provided.
4. Determine the diameter of the piston and piston rod according to the working load of the hydraulic cylinder and the selected working pressure of the oil.
5. Determine the flow rate of the hydraulic pump according to the movement speed of the hydraulic cylinder and the diameter of the piston and piston rod.
Sixth, select the cylinder material, and then calculate the outer diameter of the hydraulic cylinder.
7. Select the structure of the cylinder head and calculate the connection strength between the cylinder head and the cylinder tube.
8. Determine the working length of the hydraulic cylinder according to the working stroke requirements. Generally, the working length should not be less than the diameter of the piston rod. As the piston rod is slender, longitudinal bending strength check and calculation of hydraulic cylinder stability should be carried out.
9. Design buffer, exhaust and dustproof devices.
10. Draw hydraulic cylinder assembly drawings and parts drawings.
11. Organize design calculations, review drawings and other technical documents.