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External gear structure for engine balance shaft

A technology with external balance shaft and gear structure, which is applied in the direction of engine components, machines/engines, transmissions, etc., can solve the noise of engine balance gear pair, incomplete dissection of engine assembly, large amount of rework for balance shaft engine assembly assembly and other problems, to solve the noise problem, eliminate the amount of left and right movement, and reduce the effect of noise

Active Publication Date: 2012-08-08
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the noise problem of the engine balance gear pair by replacing the balance gear pair on the premise of not completely dissecting the engine assembly, that is, to solve the problem of large amount of rework of the balance shaft engine assembly

Method used

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  • External gear structure for engine balance shaft
  • External gear structure for engine balance shaft
  • External gear structure for engine balance shaft

Examples

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] figure 2 The engine balance shaft external gear structure shown is composed of balance shaft 1, crank connecting rod assembly 2, left crankcase 3, right crankcase 4, right crankcase cover 15, driving gear 14 and balance driven gear combination mechanism 10 composed of balance gear pair and so on. Left crankcase 3 is provided with balance shaft left support bearing 5 and left crank support bearing 6 , and right crankcase 4 is provided with balance shaft right support bearing 7 and right crank support bearing 8 . The balance shaft left support bearing 5 is used to support the left end of the balance shaft 1, and the balance shaft right support bearing 7 is used to support the right end of the balance shaft 1. Crank connecting rod assembly 2 is made up of left crank, right crank 2a and connecting rod etc., and left crank support bearing 6 is used for s...

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PUM

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Abstract

The invention discloses an external gear structure for an engine balance shaft. The external gear structure comprises a balance shaft, a crank connecting rod assembly, a left crankcase, a right crankcase, a right crankcase cover, a driving gear and a balance driven gear combination mechanism. The external gear structure has the key points that: the balance shaft and the right crank of the crank connecting rod assembly extend out of the right crankcase; and a balance gear pair consisting of the balance driven gear combination mechanism and the driving gear is arranged between the right crankcase and the right crankcase cover. When the noise of the engine balance gear pair is higher after the balance shaft engine assembly is assembled, the right crankcase cover can be disassembled, and the balance gear pair can be replaced, so that the problems of the noise of the engine balance gear pair and great assembly repairing amount of the balance shaft engine assembly are solved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine balance shaft external gear structure. Background technique [0002] In order to make the structure of the balance shaft engine compact and reduce the vibration of the engine, a balance shaft and a balance gear mechanism are usually arranged between the left and right crankcases. like figure 1 Shown is the built-in gear structure of the engine balance shaft, including balance shaft 1, crank connecting rod assembly 2, left crankcase 3, right crankcase 4, left crankcase 3 is provided with balance shaft left support bearing 5, left crank support bearing 6. The right crankcase 4 is provided with a balance shaft right support bearing 7, a right crank support bearing 8, a driving gear 14 and a balance driven gear combination mechanism 10, etc. The driving gear 14 is fixed and sleeved on the right crank 2a of the crank-connecting rod assembly 2 through the pin 16, and is loc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/12F16H57/023F16H57/021F02F7/00
Inventor 田亚平
Owner 力帆科技(集团)股份有限公司