CN201787034U

CN201787034U - Automobile engine timing sprocket

Info

Publication number: CN201787034U
Application number: CN2010202938377U
Authority: CN
Inventors: 李鸿飞
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2010-08-11
Filing date: 2010-08-11
Publication date: 2011-04-06
Anticipated expiration: 2020-08-11

Abstract

The utility model belongs to the technical field of engines, and relates to an automobile engine timing sprocket, wherein an end surface on one side of the timing sprocket is connected with a shaft end of a cam shaft positioned on the outer side of a cylinder cover, the timing sprocket is provided with three bolt mounting holes in the axial direction, the shaft end of the cam shaft is provided with a mounting hole which is matched with the cam shaft, and the shaft end and the mounting hole are fastened in threaded manner. By adopting the structure, the timing sprocket has the advantages that the timing sprocket is fixed on the cam shaft through three bolts, the risk that single bolts are easy to slide during the operation of an engine when being used is prevented, and the connection between the cam shaft and the timing sprocket is more stabilized.

Description

A kind of motor car engine timing sprocket

Technical field

The utility model belongs to technical field of engines, relates to a kind of motor car engine timing sprocket.

Background technique

Motor is to finish by timing system to drive being connected between bent axle and the camshaft in running, and the cam shaft timing chain wheel in the motor plays crucial effects in the accurate transmission of power of timing train.Traditional cam shaft timing chain wheel often is fixed to sprocket wheel on the camshaft by a bolt, exist in bolt slip in the operation process, valve hits the risk of piston, for addressing the above problem, just be necessary to develop a kind of firm cam shaft timing chain wheel of guaranteeing to connect between camshaft and the timing sprocket.

Summary of the invention

The purpose of this utility model provides a kind of firm cam shaft timing chain wheel of guaranteeing to connect between camshaft and the timing sprocket.

For achieving the above object, the utility model has adopted following technological scheme: a kind of engine timing sprocket wheel, one side end face of this timing sprocket connects the axle head of the camshaft that is positioned at the cylinder cap outside, timing sprocket is axially arranged with three bolt mounting holes at it, the axle head end face area of camshaft is provided with the mounting hole that cooperates with it, and it is fastening to be spirally connected between the two.

The beneficial effects of the utility model are: after adopting said structure, timing sprocket is by three uniform being bolted on the camshaft, the risk that bolt easily slides in the engine running when having avoided single bolt, make connect between camshaft and the timing sprocket more firm.

Description of drawings

Fig. 1 is an axial end view of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1.

Embodiment

A kind of engine timing sprocket wheel, one side end face of timing sprocket 10 connects the axle head of the camshaft that is positioned at the cylinder cap outside, described timing sprocket 10 is axially arranged with three bolt mounting holes 11 at it, and the axle head of described camshaft is provided with the mounting hole that cooperates with it, and it is fastening to be spirally connected between the two.

Further, three bolt mounting holes 11 on the timing sprocket 10 are waist shaped hole, be used for satisfying fixing between timing gear 10 and the camshaft, the effect of waist shaped hole is to avoid causing timing gear 10 and camshaft correctly to fix because of assembling or machining error, three waist shaped holes on the timing sprocket 10 are corresponding with three mounting holes on the camshaft, when having assembly error and machining error, suitably rotate timing sprocket 10, the waist shaped hole on it can finely play the effect of compensating error at this moment.

Further, three waist shaped holes on the timing sprocket 10 are circumferentially uniform along its end face, thereby form firm three-support, and the transmission of exerting all one's strength is more steady.

Timing sprocket 10 is provided with 3 through holes that are used for loss of weight 12 that connect timing sprocket 10 in the axial direction, through hole 12 is circumferentially uniform along the end face of timing sprocket 10, thereby the overall weight of timing sprocket 10 is alleviated, satisfied function and the layout demand more and more higher at present motor.

Claims

1. engine timing sprocket wheel, it is characterized in that: a side end face of described timing sprocket (10) connects the axle head of the camshaft that is positioned at the cylinder cap outside, described timing sprocket (10) is axially arranged with three bolt mounting holes (11) at it, the axle head of described camshaft is provided with the mounting hole that cooperates with it, and it is fastening to be spirally connected between the two.

2. timing sprocket according to claim 1 is characterized in that: three bolt mounting holes (11) on the described timing sprocket (10) are waist shaped hole.

3. timing sprocket according to claim 2 is characterized in that: three waist shaped holes on the described timing sprocket (10) are circumferentially uniform along its end face.

4. timing sprocket according to claim 1, it is characterized in that: described timing sprocket (10) is provided with 3 through holes that are used for loss of weight (12) that connect timing sprocket (10) in the axial direction, and described through hole (12) is circumferentially uniform along the end face of timing sprocket (10).