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Mechanical tensioning device and movable rail thereof

A technology of tensioning devices and moving rails, applied in mechanical equipment, transmission devices, belts/chains/gears, etc., can solve the problems of increasing manufacturing complexity and cost, and achieve the effect of reducing the number of molds and reducing manufacturing costs

Active Publication Date: 2016-07-27
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the moving rail 1' requires multiple molds to form, this undoubtedly increases the complexity of manufacturing and thus increases the cost

Method used

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  • Mechanical tensioning device and movable rail thereof
  • Mechanical tensioning device and movable rail thereof
  • Mechanical tensioning device and movable rail thereof

Examples

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Embodiment Construction

[0021] Such as Figure 10 As shown, the chain drive system of an internal combustion engine includes a chain 100 and a sprocket 200 . The mechanical tensioner according to the invention comprises a pivot rod 300 fixed to the internal combustion engine, a moving rail 1 placed against the chain 100 to guide its travel and a pin 400 positioned on the internal combustion engine. There is a boss on the moving rail 1, and a through hole is arranged in the boss for the pivot rod 300 to pass through, so that the moving rail 1 is pivotably connected to the pivot rod 300 so as to be able to rotate around the pivot rod 300 . The mechanical tensioning device also includes an elongated leaf spring 2, one end of which is in contact with the pin 400 and leans against the pin 400, and the moving rail 1 is provided with a hook 31 (see Figure 5-6 ), the other end of the leaf spring 2 engages with the hook 31, thereby locking the leaf spring 2 on the moving rail 1, wherein the leaf spring 2 i...

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PUM

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Abstract

The invention provides a mechanical tensioning device for a chain transmission system of an internal combustion engine and a movable rail. The movable rail comprises a base part and side walls located on the two sides of the base part and arranged oppositely. The base part is used for abutting against a placed chain so as to bring convenience to chain tensioning, and a hook part used for being buckled with a leaf spring is arranged on the inner surface of the base part. An opening is formed in the position, corresponding to the hook part, of the outer surface of the base part, and the opening is used for demolding when a mold is used for molding containing space below the hook part. In this way, the number of molds used in the molding process of the movable rail can be decreased, and the manufacturing cost of the movable rail is better reduced.

Description

technical field [0001] The present invention relates to mechanical tensioning devices, and more particularly to mechanical tensioning devices for chain drive systems of internal combustion engines. The invention also relates to the moving rail of the mechanical tensioner. Background technique [0002] In order to ensure that the chain used in the chain drive system of the internal combustion engine is always in a tensioned state, a mechanical tensioning device is provided. figure 1 and figure 2 A conventional mechanical tensioning device of the prior art is shown, in which a leaf spring 2' is employed. The mechanical tensioning device includes a moving rail 1' and a leaf spring 2'. The moving rail 1' includes a base 5' and side walls 3' opposite to each other on both sides of the base 5'. The base 5' is placed against the chain so as to make the chain tense. The inside of the side wall 3' is provided with a hook 31' After the leaf spring 2' is installed, the hook portio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08
Inventor 刘琦盛蒂姆·亨切尔
Owner SCHAEFFLER TECH AG & CO KG
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