Vibration reduction crankshaft connecting rod assembly meeting dynamic balance requirement
A crankshaft connecting rod and assembly technology, applied in the field of vibration damping crankshaft connecting rod assembly, can solve problems such as uneven speed distribution, affecting comfort and reliability of use, vibration, etc., to reduce vibration, improve comfort and reliability effect
Inactive Publication Date: 2019-08-02
ZHEJIANG PIONEER MACHINERY & ELECTRON
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Problems solved by technology
[0002] In the working cycle of a small general-purpose engine, the piston makes a high-speed back-and-forth linear motion along the inner wall of the cylinder, and the speed distribution is uneven. The reciprocating inertial force is generated on the piston, the piston pin and the small end of the connecting rod, which makes the engine bounce up and down through the main bearing. The main bearing also causes the engine to swing left and right; and the reciprocating inertial force and rotational inertial force generated by the movement of the crankshaft connecting rod mechanism of the small general-purpose engine change periodically, and these periodically changing forces are transmitted to the engine support, causing Engine vibration, affecting comfort and reliability
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[0014] 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.
[0015] see Figure 1-2 , the present invention provides a technical solution: a damping crankshaft connecting rod assembly that meets the requirements of dynamic balance, including a left crank 1, a right crank, a half-round key 10 arranged on the right crank, and a bearing 9 arranged on the right crank , the crank pin 8 and the piston 3, the left crank 1 and the right crank are press-fitted into one body through the crank pin 8, the middle part of the crank p...
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The invention discloses a vibration reduction crankshaft connecting rod assembly meeting the dynamic balance requirement. The vibration reduction crankshaft connecting rod assembly meeting the dynamicbalance requirement comprises a left crank, a right crank, a semicircular key which is arranged on the right crank, a bearing which is arranged on the right crank, a crank pin and a piston; the leftcrank and the right crank are integrated through the crank pin in a press-fitting manner; a connecting rod is arranged at the middle part of the crank pin; the greater head of the connecting rod is rotationally connected with the middle part of the outer side of the crank pin; a piston pin is movably installed at one end of the smaller head of the connecting rod; and the piston is connected with the smaller head of the connecting rod into a whole through the piston pin. According to the vibration reduction crankshaft connecting rod assembly meeting the dynamic balance requirement, through a method that counterweights are additionally arranged on the left crank and the right crank, reciprocating inertia force and rotatory inertia force which are generated through movement of a crankshaft connecting rod system are balanced effectively, so that vibration is reduced, and the application comfortability and reliability are improved.
Description
technical field [0001] The invention relates to the technical field of small gasoline engines, in particular to a vibration damping crankshaft connecting rod assembly meeting the requirements of dynamic balance. Background technique [0002] In the working cycle of a small general-purpose engine, the piston makes a high-speed back-and-forth linear motion along the inner wall of the cylinder, and the speed distribution is uneven. The reciprocating inertia force is generated on the piston, the piston pin and the small end of the connecting rod, which makes the engine jump up and down through the main bearing. The main bearing also causes the engine to swing left and right; and the reciprocating inertial force and rotational inertial force generated by the movement of the crankshaft connecting rod mechanism of the small general-purpose engine change periodically, and these periodically changing forces are transmitted to the engine support, causing Engine vibration affects comf...
Claims
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Login to View More IPC IPC(8): F02B75/32F16F15/28
CPCF02B75/32F16F15/283
Inventor 杨慧明刘永根陈军
Owner ZHEJIANG PIONEER MACHINERY & ELECTRON