hydraulic system leak control program
2023-10-13
Plan one: Design and manufacture flaw solution:
l,hydraulic element often have the decisive influence in hydraulic system's divulging. This decided that our technical personnel in the new product design,old product's improvement,in the choose of cylinder, pump, pipe accessory, seal and hydraulic pressure auxiliary, elect superiorly in line with good, superior to choose with inexpensive principle prudent, comparison advance.
2nd, reasonable design fitting surface and packing surface: When the valve group or the pipeline fix on the fitting surface, obtain the satisfaction initial seal and prevent the seal to squeeze out the trench to be worn, the fitting surface must be straight, the packing surface request precision work, the surface roughness must achieve 0.8μm, flatness must achieve 0.01/100mm. The surface cannot have the radial direction scratch, connection screw's pretightening up force must be big enough, prevents the superficial separation.
3rd, in production and transportation process, must prevent the essential superficial clash, scratches. assembles the debugging process monitoring strictly, guarantee quality assembly.
4th, do not fall careless to some hydraulic system's revelation hidden danger, must perform to remove.
Plan two: Reduced impact and vibration: Hydraulic system's divulging which in order to reduce attack and vibrate the pipe connection
which causes leak, may take the following measure:
①To use absorption of shock support fixed all pipes in order to absorb the impact and the vibration;
②Uses valve or the accumulator lowly reduces the impact;
③Suitable arrangement pressure control valve protective system's all parts;
④Reduced the quantity of pipe connection's use, the pipe connection uses the weld joint as far as possible;
⑤Uses the straight screw connector, the duplex fitting and the bend replaces the awl pipe thread attachment;
⑥Uses the oil discharge block to replace each tubing as far as possible;
⑦In view of the use top pressure, stipulated installs when uses bolt's torque and the caulking torque, prevents the junction plane and the seal is nibbled;
⑧Installs the pipe connection correctly.
Plan three: reduce seal attrition moves: The majority moves seal with precisely designs, if moves seal processing to be qualified, the installment is correct, the use is reasonable, may guarantee the long time relative non-divulging work. As for the design angle, the designer may use the following measure to lengthen moves seal life: 1st, eliminates the connecting rod and the drive shaft seal on load side;
2nd, with the dust ring, the safety mask and the oak gum cover protection connecting rod, prevents impurities and so on grinding compound, dust to enter;
3rd,select appropriate filtrating equipment and is advantageous for clean the fuel tank to prevent the dust to accumulate in the fat liquor;
4th, causes the connecting rod and the axis speed as far as possible low.
Plan four: To static seal request: The static seal prevents outside the fat liquor between the rigid fixing surface to release. The reasonable design seal groove size and the common difference, after the installment has distortion the seal to certain extrusion in order to pad the mating surface microscopic hollow, and enhances the seal internal stress higher than the seals pressure. When the components rigidity or the bolt pretightening up force are not very big, the mating surface will separate under the fat liquor pressure function, creates the gap or enlarges as a result of the sealing surface not very even and possibly from starts on the existence gap. Along with mating surface's movement, the static seal became has moved the seal. The rough mating surface will wear the seal, the change gap will nibble the seal edge.
Plan five: The control oil temperature prevents the seal deterioration: The seal premature deterioration possibly causes by many kinds of factors, an important attribute is the oil temperature is excessively high. The temperature elevates every time 10℃, then the seal life will halve, therefore should design the highly effective hydraulic system or establish forced cooling equipment reasonably, will cause the best fat liquor temperature maintains at 65℃ below; The engineering machinery cannot surpass 80℃; Another factor possibly the compatible question of use fat liquor and packing material, should selects the hydraulic fluid seal pattern and material quality according to the instruction for user or the related handbook, solves the compatible problem,extension the seal service life.
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