Reverse gear apparatus of motorcycle engine speed variator

An engine and transmission technology, applied in the direction of transmission, gear transmission, transmission control, etc., can solve the problems of increasing enterprise investment, increasing the internal space size of crankcase, etc., to ensure the effect of shifting

Inactive Publication Date: 2009-05-20
重庆东本工业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"The reverse gear protection device of this structure is only suitable for implementing on the internal combustion engine that is provided with the reverse gear mechanism in the transmission chamber cavity, but for the motorcycle engine that usually does not have the reverse gear mechanism, if the above structure is adopted, it must be installed on the crankshaft. The reverse gear mechanism including the revers

Method used

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  • Reverse gear apparatus of motorcycle engine speed variator
  • Reverse gear apparatus of motorcycle engine speed variator
  • Reverse gear apparatus of motorcycle engine speed variator

Examples

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Embodiment Construction

[0011] see Figure 1 to Figure 3 , a kind of embodiment of the reverse gear of motorcycle engine speed changer. The input end of the main shaft 5 of the speed changer in the crankcase passes through the right crankcase 12 and is connected with the clutch (not shown) at the cover side 12a of the right crankcase, and the shaft end of the speed change hub 14 in the crankcase passes through the right crankcase 12 in the crankcase. The cover side 12a of the right crankcase is threaded to the star gear wheel 1, and the star gear wheel 1 is circumferentially fixed with the transmission hub through the positioning pin 16, and the cover side 12a of the right crankcase is hinged with a screw 17 with a preload. The positioning block 2 presses the star-shaped gear wheel 1 to form a gear position. The screw 17 is covered with a torsion spring 13. One end of the torsion spring 13 is positioned on the right crankcase 12, and the other end is positioned on the positioning block 2 to form a pr...

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Abstract

The invention discloses a gear reversing device for motorcycle engine transmission. The input end of a main shaft of a transmission in a crankcase passes through a right crankcase and fixes a reverse driving gear on the cover-closing side of the right crankcase in the circumferential direction; a reverse gear is fixed on a countershaft of the transmission in the circumferential direction; the cover-closing side of the right crankcase is provided with an intermediate gear mechanism; a first gear of the intermediate gear mechanism meshes with the reverse driving gear on the main shaft; a second gear is corresponding to the reverse gear on the countershaft; a limit boss for preventing from entering reverse gear is arranged on the end face of a star-shaped shift wheel; and the cover-closing side of the right crankcase is provided with a reverse gear protection mechanism in constant contact with the limit boss on the star-shaped shift wheel. As the gear reversing device and the reverse gear protection mechanism are arranged by utilizing a vacant space between the cover-closing side of the crankcase and a cover of the crankcase, the arrangement of the reverse gear can be realized in a compact-structure motorcycle engine without increasing the size of the prior motorcycle engine crankcase, so as to reduce the cost for producing the motorcycle engine with a built-in reverse gear.

Description

technical field [0001] The invention relates to a motorcycle engine transmission, in particular to a reverse gear of the motorcycle engine transmission. Background technique [0002] Usually motorcycle engine is because of its small volume, and the speed changer that is located in the crankcase is very compact in structure, and remaining space is limited, so the speed changer of existing motorcycle engine generally does not establish reverse gear mechanism. When the motorcycle engine is used for three or four-wheeled motorcycles, in order to make the three or four-wheeled motorcycles have a reverse gear function, an external reverse gear is usually set outside the engine, and this external reverse gear is connected to the output of the engine. between the axle and the rear axle. Because this external reverse gear will be made separately, its structure is complex, adding an external reverse gear will greatly increase the production cost of motorcycles, and increase the econo...

Claims

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Application Information

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IPC IPC(8): F16H3/40F16H61/18F16H63/34
Inventor 王东陈中
Owner 重庆东本工业有限责任公司
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