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Balance shaft and engine with the balance shaft

A balance shaft and airframe technology, applied in the field of balance shafts, can solve problems such as balance shaft failure, reciprocating inertial force balance, poor engine working conditions, etc., and achieve the effect of simple and compact structure and guaranteed balance effect

Active Publication Date: 2015-08-26
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working state of the engine is constantly changing. At different engine speeds, the balance shaft cannot always completely balance the reciprocating inertial force, and when the engine is started, the balance shaft may also cause resonance, resulting in failure of the balance shaft and making the engine work worse condition

Method used

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  • Balance shaft and engine with the balance shaft

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Experimental program
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Effect test

Embodiment 1

[0016] Such as figure 1 As shown, the present embodiment discloses a balance shaft used inside an engine to balance the vibration of the engine. The balance shaft includes an existing mass block 1, and two connecting housings 2 are respectively arranged at both ends of the mass block 1, and the connecting housings 2 are horizontally fixed. An inner end of each connecting housing 2 is provided with a connecting rod 4 that can extend horizontally outward, and the extension length of the connecting rod 4 is adjustable. The connecting rod 4 can rotate along its own central axis as a rotating shaft, thereby driving the mass block 1 to rotate.

[0017] The protruding end of each connecting rod 4 is connected to a connecting block 5 through an Oldham joint 6 , and each connecting block 5 is hinged to one side of the mass block 1 . A driving device is provided on one of the connecting housings 2, which can drive the connecting rod 4 on the connecting housing 2 to rotate. At this tim...

Embodiment 2

[0021] This embodiment discloses an engine, which has a body of a conventional engine, a crankshaft and a piston are arranged in the body, and the balance shaft in Embodiment 1 is also arranged in the body, and the reciprocating inertial force of the engine is balanced by the balance shaft , its vibration can be greatly reduced.

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Abstract

A balance shaft comprises a mass block and further comprises two connecting casings fixedly arranged at two ends of the mass block horizontally. One end of the inner side of each connecting casing is provided with a connecting rod extending outwards horizontally, adjustable in length and capable of rotating around a rotary shaft of the connecting rod. A connecting block is hinged to two sides of the mass block respectively. The extending ends of the connecting rods are connected with the connecting blocks through universal joints, and a driving device for driving the connecting rod on one connecting casing is arranged on the connecting casing. The invention further provides an engine with the balance shaft. By adjusting the extending length of the connecting rods, distance between the mass block and the rotating axis of the mass block can be changed, trimming moment generated by the balance shaft is changed so as to be suitable for different working states of the engine, and the balance shaft is suitable to be installed in the engine with a piston to reduce vibration of the engine.

Description

technical field [0001] The invention relates to a balance shaft inside an engine; the invention also relates to an engine with the balance shaft. Background technique [0002] The balance shaft in the engine is used to balance the reciprocating inertia moment and overturning moment generated when the crankshaft of the engine rotates, which can reduce the vibration and noise of the engine. The existing balance shafts are all rigid and fixed structures, and the moments to be balanced by them are calculated in advance. The working state of the engine is constantly changing. At different engine speeds, the balance shaft cannot always completely balance the reciprocating inertial force, and when the engine starts, the balance shaft may also cause resonance, resulting in failure of the balance shaft and making the engine work The situation is worse. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a balance shaft, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/26F16F15/28F02B77/00
Inventor 贺巍左云周武明张泽裕王鹏
Owner GREAT WALL MOTOR CO LTD