Connecting structure and mounting and fixing method for crankshaft and timing sprocket and engine

A timing sprocket and connecting structure technology, applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problems of high assembly difficulty, inconvenient disassembly and maintenance, etc., to solve the problems of high assembly difficulty, convenient maintenance and disassembly, Easy to assemble effects

Active Publication Date: 2013-07-10
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the crankshaft and the timing sprocket are connected and fixed with axial surface interference in the prior art, the assembly difficulty is high, and the disassembly and maintenance are very inconvenient, the embodiment of the present invention provides a crankshaft timing sprocket The connection structure, installation and fixing method and engine

Method used

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  • Connecting structure and mounting and fixing method for crankshaft and timing sprocket and engine

Examples

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Effect test

Embodiment 1

[0025] like figure 1 As shown, the present invention provides a connection structure of the crankshaft timing sprocket, the connection structure is arranged on the crankshaft 1 and the timing sprocket 2, and the connection structure includes: positioning groove 6, positioning key 7, sleeve 4 And the fixing bolt 5, the timing sprocket 2 and the sleeve 4 are sequentially sleeved on the crankshaft journal, the crankshaft 1 end surface is processed with the positioning groove 6, the timing sprocket 2 The positioning key 7 is processed on the surface matched with the crankshaft 1, the timing sprocket 2 forms a key connection with the crankshaft 1, the crankshaft 1 is provided with a threaded hole, and the fixing bolt 5 penetrates The threaded hole, and the sleeve 4 and the timing sprocket 2 are fixed on the crankshaft 1 through the fixing bolt 5 .

[0026] Refer to attached figure 1 As shown, the timing sprocket 2 is connected to the crankshaft 1 through the positioning groove 6 ...

Embodiment 2

[0034] see figure 1 , the present invention also provides a method for installing and fixing the crankshaft timing sprocket, which is applied to the connecting structure of the crankshaft 1 and the timing sprocket 2. The installation and fixing method is carried out according to the following steps: the timing chain Wheel 2, the oil seal 3 and the sleeve 4 are sleeved on the journal of the crankshaft 1, so that the positioning key 7 in the timing sprocket 2 is inserted into the positioning groove in the crankshaft 1 6, the timing sprocket 2 forms a key connection with the crankshaft 1, the fixing bolt 5 is inserted into the threaded hole, and the sleeve 4 and the timing The sprocket 2 is fixed on the crankshaft 1 , the sleeve 4 and the timing sprocket 2 are sealed by the oil seal 3 , and the fixing bolt 5 has the oil seal 3 .

[0035] The embodiment of the present invention includes all the content of embodiment 1, so this embodiment processes positioning groove 6 on the end ...

Embodiment 3

[0037] see figure 1 As shown, the present invention also provides a kind of engine, described engine comprises crankshaft 1 and timing sprocket 2, and the connecting structure of described crankshaft 1 and described timing sprocket 2 is arranged on described crankshaft 1 and described timing On the sprocket 2, the connection structure includes: a positioning groove 6, a positioning key 7, a sleeve 4 and a fixing bolt 5, and the timing sprocket 2 and the sleeve 4 are sequentially sleeved on the crankshaft 1 On the neck, the positioning groove 6 is processed on the end surface of the crankshaft 1, the positioning key 7 is processed on the matching surface of the timing sprocket 2 and the crankshaft 1, and the timing sprocket 2 and the The crankshaft 1 forms a key connection, the crankshaft 1 is provided with a threaded hole, the fixing bolt 5 penetrates into the threaded hole, and the sleeve 4 and the timing sprocket 2 are fixed by the fixing bolt 5 on the crankshaft 1.

[003...

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Abstract

The invention discloses a connecting structure and a mounting and fixing method for a crankshaft and a timing sprocket and an engine and belongs to the field of engine design. The connecting structure for the crankshaft and the timing sprocket is arranged on the crankshaft and the timing sprocket, and comprises a locating slot, a locating key, a sleeve and a fixing bolt, wherein the timing sprocket and the sleeve are sequentially sleeved on the crankshaft journal, the locating slot is processed on the end face of the crankshaft, the locating key is processed on the surface where the timing sprocket is matched with the crankshaft, the timing sprocket and the crankshaft form key connection, the crankshaft is provided with a threaded hole, the fixing bolt penetrates through the threaded hole, and the sleeve and the timing sprocket are fixed on the crankshaft through the fixing bolt. According to the connecting structure and the mounting and fixing method for the crankshaft and the timing sprocket and the engine, the locating slot is processed on the end face of the crankshaft, the locating key is processed on the surface where the timing sprocket is matched with the crankshaft, and the crankshaft and the timing sprocket are located and assembled through a keyway, so that the assembly is easy, and the maintenance and dismounting are convenient.

Description

technical field [0001] The invention relates to the field of engine design, in particular to a connection structure of a crankshaft timing sprocket, an installation and fixing method and an engine. Background technique [0002] As we all know, the timing sprocket is an important part of the engine gas distribution system. The timing sprocket is equivalent to the timing belt. The connection between the timing sprocket and the crankshaft and a certain transmission ratio ensure the intake and exhaust time. accurate. [0003] At present, the installation and fixing method of the timing sprocket of the automobile engine is usually: the connection and fixing method of the axial surface interference is adopted, and the crankshaft and the timing sprocket are heated on the special heating equipment, and the timing sprocket is set on the crankshaft with tools. Install on it. [0004] In the process of realizing the present invention, the inventor finds that there are at least the fo...

Claims

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Application Information

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IPC IPC(8): F16D1/08F01L1/348
Inventor 王磊
Owner CHERY AUTOMOBILE CO LTD
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