CN201358825Y

CN201358825Y - Automatic phase regulating device

Info

Publication number: CN201358825Y
Application number: CNU2009201110291U
Authority: CN
Inventors: 沈达民
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-12
Filing date: 2009-03-12
Publication date: 2009-12-09
Anticipated expiration: 2019-03-12

Abstract

The utility model relates to an automatic phase regulating device; in the structure of the device, a synchronous timing belt pulley (1) for loosing fit and a cam shaft rotary plate (5) for close fit are arranged on a cam shaft (7); three or more than three sliding grooves (10) and (11) are arranged at the same positions on deflection angle lines of a left deflection angle alpha and a right deflection angle beta on the radial lines of the two pulleys, and the sliding grooves (10) and (11) are distributed in a reverse symmetry way, and the deflection angle alpha and the deflection angle beta are the same, a centrifugal cylinder pulling pin (4) is embedded in each sliding groove, the middle of the centrifugal cylinder pulling pin is provided with a groove (12), and an elastic strap (9) is sheathed on the groove of the centrifugal cylinder pulling pin; the automatic phase regulating device has the advantages that the adjusting system has simple structure, low cost, and stable and reliable structure.

Description

The automatic phase controlling device

Technical field

The utility model relates to a kind of automatic phase controlling device, especially IC engine gas distribution phase adjusting device technical field of structures.

Background technique

The controlling device of the switching phase variable of air inlet and exhaust valve when being used for internal-combustion engine corresponding to different operating conditions and working state.

Conventional IC engine gas distribution phase adjusted is to be linked to each other with the intake and exhaust cam axle by the hydraulic gyration body by the intake and exhaust timing belt pulley, bent axle with driving force by synchronous belt driving valve timing belt wheel and control hydraulic gyration body and the relative rotary displacement of camshaft to finish the air inlet and exhaust valve opening and close timing variable.Control hydraulic gyration body is to be finished by running computer instruction solenoid valve corresponding to different operating conditions and working state according to internal-combustion engine with the relative rotary displacement of camshaft.The whole control and regulating system complex structure, parts multi-processing difficulty is big in addition, the cost height.

Summary of the invention

The purpose of this utility model according to the phase-adjusted working principle of IC engine gas distribution, is automatically finished air inlet and exhaust valve opening and close timing phase-adjusted by the rotating speed of motor is stirred the relative camshaft of timing belt pulley by centrifugal finger under centrifugal force drives the certain angle of relative rotary displacement for the high deficiency of regulating system complex structure, cost that overcomes above-mentioned existing IC engine gas distribution phase adjusted existence just.Thereby provide the automatic phase that a kind of regulating system is simple in structure, cost is extremely low controlling device.

The purpose of this utility model is achieved by the following technical solution.

The synchronous timing belt pulley of the running fit that the utility model camshaft is provided with and close-fitting camshaft rotating disk; There is same position on the deflection linea angulata of a left avertence corner α and right avertence corner β to offer chute more than three or three at radial line with synchronous timing belt pulley and camshaft rotating disk; The chute of the chute of timing belt pulley and camshaft rotating disk is the inversion symmetry layout synchronously; Angle of deflection is identical with β; Be embedded with eccentric circle cylinder finger at each chute; Have a groove in the centre of centrifugal cylinder finger, on the groove of all centrifugal cylinder fingers, be with the elasticity band.

Left and right angle of deflection of the present utility model and β are 3 °～10 °.

Usefulness of the present utility model is that regulating system is simple in structure, cost is extremely low, structural stability, reliable.

Further set forth the utility model content below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the sectional view of the utility model automatic phase controlling device;

Fig. 2 is synchronous timing belt pulley structural drawing;

Fig. 3 is camshaft turntable structure figure;

Fig. 4 is the phase angle distribution map of two-wheeled.

Embodiment

The synchronous timing belt pulley 1 of the running fit that the utility model camshaft 7 is provided with and close-fitting camshaft rotating disk 5; There is same position on the deflection linea angulata of a left avertence corner α and right avertence corner β to offer

chute

10,11 more than three or three at radial line with synchronous timing belt pulley 1 and camshaft rotating disk 5; The chute 10 of timing belt pulley 1 is the inversion symmetry layout with the chute 11 of camshaft rotating disk 5 synchronously; Angle of deflection is identical with β; Be embedded with eccentric circle cylinder finger 4 at each chute; Have a groove 12 in the centre of centrifugal cylinder finger 4, on the groove 12 of all centrifugal cylinder fingers, be with elasticity band 9.

Angle of deflection of the present utility model and β are 3 °～10 °.

See Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, in the automatic phase controlling device synchronously timing belt pulley 1 rotation mode under the bent axle synchronous belt drives be, when synchronous timing belt pulley 1 during by the belt pulley driven rotary, by the chute 10 of synchronous timing belt pulley 1 and camshaft rotating disk 5, the effect of the centrifugal finger 4 in 11 is with camshaft 7 close-fitting camshaft rotating disks 5 also and then rotation.Timing belt pulley 1 is by fixing bolt 3, pressure ring 8 and packing ring 2 axial limitings synchronously; Camshaft rotating disk 5 is fixed on by fixing bolt 3, pressure ring 8, packing ring 2 and pin 6 on the camshaft 7 of intake and exhaust, and this synchronous timing belt pulley 1 can be followed camshaft 7 revolution and produce certain displacement angle with camshaft rotating disk 5 but can not move axially.When camshaft reaches certain rotating speed, the centrifugal force of centrifugal finger 4 overcome be enclosed within the elastic force of the elasticity band 9 on fluted 12 radially outer sliding, make centrifugal finger 4 along

chute

10,11 do radial alignment motion stirs timing belt pulley 1 and camshaft rotating disk 5 in certain angle of deflection and β scope, make relative rotary displacement in promptly 3 °～10 ° scopes, thereby change timing belt pulley 1 and camshaft rotating disk 5 pairing phase places.Reach and finish the purpose that automatic phase is regulated.Principle of the present utility model not only is suitable for the port timing of internal-combustion engine regulates, and is suitable for the ignition phase adjusting of internal-combustion engine and the speed advance angle phase adjusted of internal-combustion engine too.The utility model also is suitable for utilizing rotating speed and phase-adjusted other device of centrifugal masterpiece.

Shown in Figure 4 is the relative phase angle of centrifugal finger 4 and chute 10,11.The weight of centrifugal finger 4 and quantity can be determined according to the rotating speed and the operating mode of motor.

Fig. 2 and shown in Figure 3 be the distribution phase of

chute

10,11 on timing belt pulley 1 and camshaft rotating disk 5.Its quantity can be equal to or greater than 3, and quantity is many can to make rotation more steady.The big I of its angle of deflection and β is decided in 3 °～10 ° scopes according to the engine power parameter.

Claims

1, a kind of automatic phase controlling device relates to the phase-regulating mechanism of IC engine gas distribution, it is characterized in that: the synchronous timing belt pulley (1) of the running fit that camshaft (7) is provided with and close-fitting camshaft rotating disk (5); There is same position on the deflection linea angulata of a left avertence corner α and right avertence corner β to offer chute (10), (11) more than three or three at radial line with synchronous timing belt pulley (1) and camshaft rotating disk (5); The chute (10) of timing belt pulley (1) is the inversion symmetry layout with the chute (11) of camshaft rotating disk (5) synchronously; Angle of deflection is identical with β; Be embedded with eccentric circle cylinder finger (4) at each chute; Have a groove (12) in the centre of centrifugal cylinder finger (4), on the groove (12) of all centrifugal cylinder fingers, be with elasticity band (9).

2, automatic phase controlling device according to claim 1 is characterized in that α and β are 3 °～10 °.