Manufacturing method of flywheel shell connecting plate
A technology for connecting plates and flywheel housings, applied in the field of flywheel housings, can solve the problems of easy oil leakage and reduced engine reliability, and achieve the effects of easy access, good flatness, and small deformation
Active Publication Date: 2019-10-25
浙江创格科技股份有限公司
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Problems solved by technology
During the long-term operation of the existing engine, oil leakage is prone to occur at the joint surface of the flywheel housing and its connecting plate, and impurities such as dust and mud will be continuously deposited at the position of the oil leakage, thereby reducing the engine's performance. reliability
Method used
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Embodiment Construction
[0026] refer to figure 1 , figure 2 with image 3 , the preparation method of a kind of flywheel housing connecting plate of the present invention, comprises the steps:
[0027] a) cutting:
[0028] The No. 45 steel plate that is not easily deformed, easy to obtain, and low in cost is used, and the size, chemical composition, and surface quality of the steel plate are inspected by tape measure, vernier caliper, high-speed carbon-sulfur analyzer, and visual inspection before the process. Then, through the CNC cutting machine, several positioning holes 1 are formed on the steel plate by laser cutting to allow the gears to pass through to obtain cutting blanks, which reduces the possibility of product deformation from the beginning of the process. Cutting parameters are pre-oxygen ≥ 0.5Mp, cutting oxygen ≥ 0.7Mp, acetylene ≥ 0.1Mp, cutting speed 370-390mm / min. The first piece is sent for inspection, and the self-inspection is continued with the imitation cutting comparison s...
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The invention discloses a manufacturing method of a flywheel shell connecting plate. The manufacturing method comprises the step a of cutting; the step b of normalizing, wherein a heating furnace is used for carrying out normalizing treatment on a cut blank part, at first, heat is preserved for 2-3 h at the temperature of 880-900 DEG C, then the blank part is cooled for 1.5-2.5 h in the furnace, then air cooling outside the furnace is carried out, and a normalized blank part is obtained; the step c of shot blasting; the step d of leveling; the step e of face milling; the step f of face grinding, wherein a grinder carries out face grinding treatment on the blank part with the milled face, after face grinding is carried out, the blank part is soaked in cutting liquid for 20-30 min, and the blank part with the grinded face is obtained; the step g of drilling; the step h of fine grinding, wherein the grinder carries out fine grinding treatment on the perforated blank part, after fine grinding is carried out, the blank part is soaked in the cutting liquid for 20-30 min, and the blank part fine grinded is obtained; and the step i of after-treatment. A 45-number steel plate which is not prone to deforming, easy to obtain and low in cost is adopted as a raw material, the special heat treatment and leveling technology is utilized, in the machining process, the blank part is soaked in the cooling liquid, thus the flatness of products is good, deformation is little, effective connecting between a machine body and a flywheel shell can be achieved, and the phenomenon of oil impregnatingcan be effectively prevented.
Description
【Technical field】 [0001] The invention relates to the technical field of flywheel housings, in particular to the technical field of a preparation method of a flywheel housing connecting plate. 【Background technique】 [0002] With the continuous improvement of diesel engine quality, engine manufacturers and customers pay more and more attention to the appearance of the engine. As an important engine component, the diesel engine flywheel housing is installed between the engine and the gearbox, externally connected to the crankcase, starter and oil pan, and built in the flywheel assembly, which plays the role of connecting the body, protection and carrier. During the long-term operation of the existing engine, oil leakage is prone to occur at the joint surface of the flywheel housing and its connecting plate, and impurities such as dust and mud will be continuously deposited at the position of the oil leakage, thereby reducing the engine's performance. reliability. The study ...
Claims
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Login to View More IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 吴海锋方利伟
Owner 浙江创格科技股份有限公司