CN2518767Y - Mechanical disc type brake for motorcycle - Google Patents

Abstract

The utility model relates to a mechanical tray type brake for the motorbike, which comprises a shell(1), a crack compensation device positioned on the upper part of the shell, a braking device positioned in the lower part of the shell and a lever device which is positioned in the shell and between the crack compensation device and the braking device. The utility model is characterized in that the vertical included angle alpha between the central line of the spring sleeve(12) and the braking sheet(2) of the braking component is forty five to one hundred and thirty five degree; the included angle between the central line of the spring sleeve and the central line of the absorber alpha is also forty five to one hundred and thirty five degree; the steel wire(18) of the operating device is bent in the lower part and is C shape and the upper part is beeline. As the lower part of the steel wire is bent and C shape, the utility model has buffering and shock absorbing function to overcome the steel wire bent phenomena caused by the shrinking of the absorber; the utility model can avoid the self braking phenomena to make the driving steady, braking reliable and has a comfortable operating feeling.

Description

A kind of mechanical disc brake for motorcycle

Technical field

The utility model relates to mechanical brake, particularly a kind of mechanical disc brake for motorcycle.

Technical background

At present, the drg of using on the motor bike adopts hydraulic brake usually, is characterized in braking steadily, but a lot of unsafe hidden danger are arranged, and is aging etc. as leakage of oil, oil pipe, and cost is higher.The mechanical brake cost is lower, can realize braking under the bigger situation of brake component and tumbler slip, thereby be applicable to motor bike.Actuating force is little, operational stroke is short and the big contradiction of braking force but need to solve.For this reason, people have designed the force-increasing mechanism of different structures according to lever principle, are installed between steering unit and the brake component, obtain bigger braking force with less actuating force in less control run.The patent No. as State Intellectual Property Office of the People's Republic of China's bulletin in 12 days September calendar year 2001 is that ZL00253893.8, name are called the utility model patent of " a kind of brake for motorcycle ", is exactly one of them.This patent has overcome existing mechanical brake complex structure, and poorly sealed shortcoming has also increased reliability to a certain extent.But when the road traveling of motor bike in injustice, the motor bike that the phenomenon, particularly cylinder diameter of vehicle body shake were bigger when self-actuating brake and brake usually took place is even more serious.Finding by observation analysis, is that the relative position of steering unit and damper of motorcycle is improper, and the steel cable of steering unit is parallel with damper of motorcycle, does not have due to the vibration-damping function.When damper of motorcycle shrank, the steel cable of steering unit was forced to bending, because the steel cable upper end is fixed on the handlebar, can not move, and can only upwards be extracted out by the lower end that connects leverage, thereby the self-actuating brake phenomenon occur; When damper of motorcycle stretched, the steel cable of steering unit also stretched thereupon, and the self-actuating brake phenomenon is eliminated.When motor bike travels on the road surface of injustice, even if not brake of driver also can occur self-actuating brake repeatedly and eliminate self-stopping phenomenon, thereby the phenomenon of vehicle body shake occur.If things go on like this, will inevitably reduce the reliability of braking, jeopardize safety of person vehicle.

At the problem of above existence, the utility model provide a kind of rational in infrastructure, sealing is tight, the mechanical disc brake for motorcycle that braking is steadily reliable, handle comfortable feel.

The content of innovation and creation

A kind of mechanical disc brake for motorcycle, comprise housing, be contained in housing top rocker compensating gear, be contained in lower housing portion brake component, be contained in the housing and be in leverage between rocker compensating gear and the brake component, the longitudinal angle α that it is characterized in that being connected the brake strap of the spring housing line of centers of the steering unit on the housing and brake component is 45 °-135 °, with 90 ° of optimums.The utility model is contained on the motor bike, and the spring housing line of centers of steering unit and the angle α of damping central line also are 45 °-135 °.So just can reduce to shrink the degree of the steel cable bending that makes steering unit greatly, to alleviate or to avoid self-actuating brake phenomenon and vehicle body to shake because of shock absorber.

Described a kind of mechanical disc brake for motorcycle, its steering unit is by spring housing, be connected the spring housing nut and the adjusting thread cover of spring housing one end, be connected the setting nut that adjusting thread puts, be contained in the slip minor axis in the spring housing, one end of one end and slip minor axis is hinged, the slide block pivotally attached steel disc of the other end and leverage, one end is connected with the other end of slip minor axis and passes the steel cable that is contained in the pull back spring in the spring housing and form, it is characterized in that the steel cable lower knuckle is " C " shape, top is straight line.When being installed on the motor bike, the nest on the shock absorber is passed on the top of steel cable earlier, be connected on the brake crank then, and parallel with the shock absorber line of centers.Because the steel cable lower knuckle is " C " shape, have the function of buffering and vibration damping, thereby overcome the situation of shrinking the steel cable bending that makes steering unit because of shock absorber fully, avoided the appearance of self-actuating brake phenomenon, make driving steadily, braking is reliable, handles comfortable feel.The big I of actuating force is regulated by spring housing nut, adjusting thread cover, setting nut.

Described a kind of mechanical disc brake for motorcycle, its rocker compensating gear by be threaded in housing top thread plate, be connected the spring shaft at center above the thread plate, a end on the spring shaft is fixed on the compensator spring that the other end is fixed on the housing on the thread plate and forms.One of effect of rocker compensating gear is the thrust of bearing the glancing impact leverage, and the gap that increases between the roller that two automatic compensations of effect make leverage because of brake strap weares and teares and its thread plate is to keep the braking effect unanimity.

Described a kind of mechanical disc brake for motorcycle, its brake component be by being contained in piston in the housing, being separately fixed at lower housing portion and piston lower end and corresponding brake strap and forming, and is contained in that brake disc is between two brake straps on the wheel.

Described a kind of mechanical disc brake for motorcycle, its leverage by be contained in lever block on the notch of piston upper end, be contained in the lever block top roller, lean with the lever block bottom and form with the steel disc pivotally attached slide block of steering unit, the roller on lever block top and the thread plate of rocker compensating gear are limited by the banking stop that is contained on the piston.

Described a kind of mechanical disc brake for motorcycle, sealing member is equipped with in the junction of its housing and lower part of piston corresponding position, steering unit and housing and the outlet of steering unit setting nut.Its role is to prevent that silt, rainwater from entering in the housing.

Description of drawings

Fig. 1 (a) A-A cutaway view of the present utility model, (b) are that birds-eye view of the present utility model, (c) are left view of the present utility model.

Fig. 2 is installed in scheme drawing on the motor bike for the utility model.

Fig. 3 is that existing drg is installed in the scheme drawing on the motor bike.

The specific embodiment

Referring to accompanying drawing, two brake straps 2 are separately fixed at the bottom of housing 1 and the lower end of piston 3, and it is corresponding mutually, seal ring is contained in the annular groove of housing 1 and corresponding position, piston 3 lower end, banking stop 5 is contained in the inverted T shape groove of piston 3 upper ends, piston 3 is packed into together with banking stop 5 in the housing 1, and the slotted eye that passes on the banking stop 5 with screw is connected with housing 1; Roller 6 cooperates with half-arc groove on the lever block 8, with jump ring roller 6 is connected on the lever block 8, and the circular arc cam of lever block 8 both sides cooperates with the half-arc groove of piston 3 upper ends; Thread plate 9 is contained in the top of housing 1, and keeps certain interval with roller 6, and spring shaft 11 is fixed on the center above the screw thread, and compensator spring 7 is contained on the spring shaft 11, and an end is fixed on the thread plate 9, and the other end is fixed on the housing 1; The bottom of slide block 4 contacts with the notch bottom on piston 3 tops, and the startup inclined-plane on the slide block 4 contacts with the shift fork of lever block 8, and slide block 4 is hinged with an end of steel 10; One end of the slip minor axis 15 in the other end of steel disc 10 and the spring housing 12 that is connected the steering unit on the housing 1 is hinged, one end of steel cable 18 is connected with the other end of slip minor axis 15, the other end of steel cable 18 passes pull back spring 17, be connected spring housing 12 1 ends spring housing nut 13 and adjusting thread cover 14, be connected the setting nut 16 and sealing shroud on the adjusting thread cover 14 after, bend to " C " shape and pass the nest that is fixed on the damper of motorcycle again and be connected, and locate to load onto the ripple sealing shroud at spring housing 12 and housing 1 with bar handle; This drg is fixed on the motor bike with connecting panel 20, makes to be contained in that brake disc 19 is between two brake straps 2 on the wheel, get final product place in operation.

Claims (6)

1, a kind of mechanical disc brake for motorcycle, comprise housing (1), be contained in housing top rocker compensating gear, be contained in lower housing portion brake component, be contained in the housing and be in leverage between rocker compensating gear and the brake component, the longitudinal angle α that it is characterized in that being connected the brake strap (2) of spring housing (12) line of centers of the steering unit on the housing and brake component is 45 °-135 °.

2, a kind of mechanical disc brake for motorcycle according to claim 1, its steering unit is by spring housing (12), be connected the spring housing nut (13) and the adjusting thread cover (14) of spring housing one end, be connected the setting nut (16) that adjusting thread puts, be contained in the slip minor axis (15) in the spring housing, one end of one end and slip minor axis is hinged, the slide block of the other end and leverage (4) pivotally attached steel disc (10), one end is connected with the other end of slip minor axis, and pass the steel cable (18) that is contained in the pull back spring (17) in the spring housing and form, it is characterized in that steel cable (18) lower knuckle is " C " shape, top is straight line.

3, a kind of mechanical disc brake for motorcycle according to claim 1 and 2, it is characterized in that rocker compensating gear by be threaded in housing (1) top thread plate (9), be connected the spring shaft (11) at center above the thread plate, a end on the spring shaft is fixed on the compensator spring (7) that the other end is fixed on the housing on the thread plate and forms.

4, a kind of mechanical disc brake for motorcycle according to claim 1 and 2, it is characterized in that brake component by being contained in piston (3) in the housing (1), being separately fixed at lower housing portion and piston lower end and corresponding brake strap (2) and forming, is contained in brake disc on the wheel (19) and is between two brake straps.

5, a kind of mechanical disc brake for motorcycle according to claim 1 and 2, it is characterized in that leverage by be contained in lever block (8) on the notch of piston upper end, be contained in the lever block top roller (6), lean with the lever block bottom and form with steel disc (10) the pivotally attached slide block (4) of steering unit, the roller on lever block top (6) is limited by the banking stop (5) that is contained on the piston with the thread plate (9) of rocker compensating gear.

6, a kind of mechanical disc brake for motorcycle according to claim 1 and 2 is characterized in that sealing member is equipped with in the junction and steering unit setting nut (16) outlet of bottom, steering unit and the housing (1) of piston (3).

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