Engine crankshaft
An engine and crankshaft technology, applied in the directions of engine components, crankshafts, shafts, etc., can solve the problems of poor transmission effect, easy damage, and lack of optimization of mechanical performance, and achieve the purpose of ensuring transmission effect, prolonging service life, and good lubrication. Effect
Pending Publication Date: 2021-11-09
无锡宇万机械有限公司
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Problems solved by technology
[0002] The crankshaft is the main rotating part of the engine. After the connecting rod is installed, it can undertake the reciprocating motion of the connecting rod and turn it into a circular motion. In order to reduce its kinetic energy consumption and cost, the existing crankshaft is designed as a hollow light weight Quantitative design, which leads to insufficient strength of the crank and is more likely to be damaged. The existing crankshaft is not optimized in terms of mechanical performance, and its power output cannot be improved.
[0003] However, the biggest problem of the existing crankshaft structure in use is that the journal is unevenly stressed during movement and is easy to wear, the wear on the surface of the crankshaft journal is uneven, and the radial wear of the main journal and the connecting rod journal It is mainly elliptical, and its maximum wear parts correspond to each other, that is, the maximum wear of each main journal is close to the side of the connecting rod journal, and the maximum wear of the connecting rod journal is also close to the side of the main journal. This situation will lead to The transmission effect is not good, for this reason, a kind of engine crankshaft is proposed
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] Please refer to Figure 1-2 , the present invention provides a technical solution: an engine crankshaft, including a crankshaft body 1, and the crankshaft body 1 includes a front journal 1-1, a first crank 1-2, a first connecting rod journal 1-3, a second crank 1-4, the first main journal 1-5, the third crank 1-6, the second connecting rod journal 1-7, the fourth crank 1-8, the second main journal 1-9, the fifth crank 1-10 , the third connecting rod jo...
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The invention belongs to the technical field of engine crankshafts, and particularly relates to an engine crankshaft which comprises a crankshaft body. The crankshaft body comprises a front journal, a first crank, a first connecting rod journal, a second crank, a first main journal, a third crank, a second connecting rod journal, a fourth crank, a second main journal, a fifth crank, a third connecting rod journal, a sixth crank, a third main journal, a seventh crank, a fourth connecting rod journal, an eighth crank and a tail journal, wherein the front journal, the first crank, the first connecting rod journal, the second crank, the first main journal, the third crank, the second connecting rod journal, the fourth crank, the second main journal, the fifth crank, the third connecting rod journal, the sixth crank, the third main journal, the seventh crank, the fourth connecting rod journal, the eighth crank and the tail journal are fixedly connected in sequence. The performance of the crankshaft is more reliable, and the service life of the crankshaft is prolonged.
Description
technical field [0001] The invention relates to the technical field of engine crankshafts, in particular to an engine crankshaft. Background technique [0002] The crankshaft is the main rotating part of the engine. After the connecting rod is installed, it can undertake the reciprocating motion of the connecting rod and turn it into a circular motion. In order to reduce its kinetic energy consumption and cost, the existing crankshaft is designed as a hollow light weight Quantitative design, which leads to insufficient strength of the crank and is more prone to damage. The existing crankshaft has no optimization in mechanical performance, and its power output cannot be improved. [0003] However, the biggest problem of the existing crankshaft structure in use is that the journal is unevenly stressed during movement and is easy to wear, the wear on the surface of the crankshaft journal is uneven, and the radial wear of the main journal and the connecting rod journal It is ma...
Claims
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Login to View More IPC IPC(8): F16C3/10F16C3/14
CPCF16C3/10F16C3/14F16C2360/00
Inventor 魏国栋
Owner 无锡宇万机械有限公司