CN1502831A - Brake for motorcycle - Google Patents

Abstract

The present invention relates to a motorcycle brake for front wheel brake or rear wheel brake. It includes shell, gap compensation mechanism, brake componnets, lever mechanism and control mechanism. The brake components are symmetrically bridge-connected with two sides of brake disk of motorcycle front wheel axle or rear wheel axle, the gap compensation mechanism is formed from threaded board, spring shaft and compensation spring, and the brake component is composed of upper shoe plate and upper friction plate adhered on it and lower shoe plate and lower friction plate adhered on it, its lever mechanism is formed from piston, lever block and roller, and the slide block of control mechanism is matched with lower shifting claw of lever block.

Description

Brake for motorcycle

Technical field

The present invention relates to Vehicular brake device, be specifically related to a kind of brake for motorcycle that is used for front-wheel or trailing wheel braking.

Technical background

Because mechanical brake can be realized braking under the bigger situation of brake component and rotating component slip, manufacturing process is uncomplicated, and cost is lower, thereby is applicable to motorcycle.Steering 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 boosting mechanism of different structures according to lever principle, are installed between driving link and the driven member, obtain bigger braking force with less steering force in less control run, realize braking.Be called " lever clutch and lever brake " as Patent Office of the People's Republic of China's disclosed name on August 27th, 1997.This break comprises driving link, driven member, operating mechanism and compensation mechanism, is provided with leverage between driving link and driven member.Mainly there is following problem: the one, the leverage complexity, by voussoir, force transmission element, lever block, arc strip, slide block and rolling element are formed, and the changing of the relative positions takes place, poor reliability more in adopt against cooperation easily between the part; The 2nd, it is unreliable to seal, and rainwater silt enters easily, and lever block blocks easily; Particularly the adjustable range of the adjusting nut in the operating mechanism does not obtain strict control, and is in use inappropriate as adjusting, and braking force deficiency, reversing braking, wiping dish even locking phenomenon can occur.These deadly defects jeopardize safety of person vehicle, have influenced the extensive use of this break.

The content of invention

At the deficiency that prior art exists, the invention provides the precisely controlled brake for motorcycle of stroke of tight reliable, the operating mechanism of a kind of simple and reasonable, sealing.

Brake for motorcycle of the present invention, comprise housing, be contained in the rocker compensating gear on housing top, be contained in the brake member of lower housing portion jaw, be contained in the housing chamber and be in leverage between rocker compensating gear and the brake member, the operating mechanism that is contained in the housing right side and cooperates with leverage, housing is provided with the connection pin-and-hole, cooperate with the bearing pin that is connected on being contained in connecting plate, connecting plate is contained on the vibration damper or fixed bearing of motorcycle, and brake member is the both sides of the brake disc on motorcycle front-wheel axle or the rear-wheel spindle symmetrically; Rocker compensating gear is made up of thread plate, spring shaft, counterbalance spring; Brake member is by last shoe plate and paste upper friction plate on it, shoe plate and paste following friction plate on it, two locating studs and de-noising sheet and form down; Leverage is made up of piston, lever block, roller; The slide block of operating mechanism cooperates with the lever block lower finger, slide block and an end of the steel disc the other end hinged, steel disc pass plate washer stretch in the return spring sleeve that is connected with the housing right side, hinged with the return spring seat, return spring is contained in the return spring sleeve, its left end and return spring seated connection touch, and it is characterized in that being connected with one and form controlling device by stationary gland, mandrel and dress adjusting nut, stop nut, gap adjustment nut thereon between return spring sleeve and steel cable sleeve pipe; The left end of mandrel stretches in the return spring sleeve, contacts with the right-hand member of return spring; The right-hand member of mandrel passes the stationary gland center hole and stretches out, and the internal thread of stationary gland circumference is connected with return spring sleeve one end outside thread, and is adhesively fixed with anaerobic adhesive; Adjusting nut, stop nut, gap adjustment nut cooperate with the outside thread of the right part of mandrel successively, adjustable range between stop nut and the adjusting nut is the 3-7 millimeter, stop nut is adhesively fixed on the mandrel with anaerobic adhesive, the lower end of steel cable sleeve pipe is enclosed within the right-hand member of mandrel, and contacts with the gap adjustment nut; One end of steel cable passes steel cable sleeve pipe, mandrel, return spring and return spring seat for being threaded, and the other end of steel cable is connected with the operation handle of motorcycle or foot treadle; In use, can as the case may be the adjusting nut rotation be moved right, mandrel then can be moved to the left, and reduces the distance between adjusting nut and the stop nut, and mandrel pushing tow return spring to increase elastic force, guarantees the leverage return simultaneously; The lower end of steel cable sleeve pipe is enclosed within the right-hand member of mandrel, and contacts with the gap adjustment nut, and the rotary gap adjusting nut moves right, and can compensate the steel cable casing deformation and shorten the gap that produces; Because adjustable range obtains strict control, not only avoided in use because of adjusting the inappropriate braking force deficiency that occurs, reversing braking, wiping dish and locking phenomenon, and the manipulation comfortable feel.

Described brake for motorcycle, the connection pin-and-hole center on its housing is 120 °-175 ° with the angle α of the line of housing lumen centers and the line that is connected pin-and-hole center and housing lumen centers; As angle α during less than 120 °, the braking stationarity is poor, influences braking effect.

Described brake for motorcycle, the piston hypomere diameter of its leverage is greater than epimere, and the epimere of piston is provided with notch, and a side of notch is inverse-T-shaped, is provided with semi-circular groove along the Vertical direction on notch top; The housing inner chamber hypomere diameter that cooperates with piston is also greater than epimere, at the hypomere of housing inner chamber the piston packing that section is a rectangle is installed; The piston diameter of leverage is designed to hypomere greater than epimere, its role is under the situation that does not increase housing, can be used for the big motorcycle of cylinder diameter; Hypomere at the housing inner chamber is equipped with the piston packing that section is a rectangle, and its effect one is to be sealing, and the 2nd, utilize the elasticity of rectangular seal, make piston move down the instant return in back.

Described brake for motorcycle, its housing upper end is buckled with end cap, is provided with the end bracket enclosed circle between housing upper end and the end cap; Adopt the end bracket enclosed circle to improve the reliability of sealing, can prevent effectively that rainwater and silt from entering in the housing, avoid locking phenomenon to take place.

Described brake for motorcycle, the oral area that the return spring sleeve of its operating mechanism and joint, housing right side are provided with the ripple stuffing box gland is provided with chimb, and this joint also is provided with rubbery flat gasket.Adopting rubbery flat gasket and the double seal of ripple stuffing box gland at this place, is in order to prevent that effectively rainwater and silt from entering in the housing, to avoid locking phenomenon to take place; The oral area of ripple stuffing box gland is established chimb, and its effect is the intensity that increases oral area, is not easy breakage, improves the reliability of sealing.

Described brake for motorcycle, the thread plate of its rocker compensating gear and housing upper end is a screw-thread fit, spring shaft be contained in thread plate above, counterbalance spring is contained on the spring shaft, the one end is fixed on the thread plate, the other end is fixed on the housing; The last end in contact of the following and banking stop of thread plate.Break in use, the friction plate attenuate that can wear and tear gradually, gap between two friction plates also increases thereupon, but because thread plate has the potential energy that is rotated down under the effect of counterbalance spring, the piston one stroke that moves down during braking, as having increased the gap because of wearing and tearing, piston needs banking stop is driven the wearing clearance that moves down, and can reach normal brake application, during brake off, thread plate down rotate until with banking stop on till the end in contact, so just compensated the gap of wearing and tearing.

Described brake for motorcycle, its upper friction plate that is contained in the brake member of lower housing portion jaw sticks on the shoe plate, following friction plate sticks on down on the shoe plate, two locating studs penetrate jaw below housing, stretch into positioning hole corresponding on the housing after passing down the positioning hole at shoe plate and last shoe plate edge again, the lower end of two locating studs and housing are for being threaded; The de-noising sheet is contained in the bottom of housing jaw, and the part of its projection is withstood the knuckle of shoe plate and following shoe plate; The following end in contact of last shoe plate and piston, following shoe plate contacts with the jaw of housing lower end.Because the part of the projection of de-noising sheet is withstood the knuckle of shoe plate and following shoe plate, make shoe plate and following shoe plate and the brake disc keeping parallelism that is contained on the motorcycle wheel shaft, do not produce noise behind the brake off with the brake disc friction.

Described brake for motorcycle, the both sides, top of the lever block of its leverage are provided with circular arc cam, the upper right quarter of circular arc cam is provided with arc groove, roller is housed in the arc groove, the circular arc cam of both sides, lever block top cooperates with the semi-circular groove of the upper end of piston, the pusher dog that the lever block bottom is provided with is in the notch of piston upper end, and cooperates with the slide block of operating mechanism.This leverage is simple in structure, compact, and braking force is big, and braking and releasing braking are reliable.

Described brake for motorcycle, one side of the notch that the upper end of the piston of its leverage is provided with also is equipped with banking stop, the upper end of banking stop exceeds the upper end of piston, and the bottom of banking stop is provided with slotted eye, and slotted eye and cushion cover that screw passes the banking stop bottom are connected on the housing.Owing between banking stop and housing internal chamber wall, cushion cover is housed, makes banking stop and housing internal chamber wall keep certain interval.Its role is to avoid the banking stop upper end to be stuck in the silk mouthful of thread plate of rocker compensating gear, and cause locking to take place.

Described brake for motorcycle, the bottom of the lever block of its leverage can be directly and an end of steel disc hinged.The structure of leverage is further simplified, and reliability increases.

Described brake for motorcycle both can be used for the front wheel brake of motorcycle, also can be used for the trailing wheel braking of motorcycle.

Description of drawings

Fig. 1 is external shape figure of the present invention.

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

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the structure of piston schematic representation.

Fig. 5 is the right elevation of Fig. 3.

Fig. 6 is the structural drawing of ripple stuffing box gland.

Fig. 7 is the structural drawing of piston packing.

Fig. 8 is the structural drawing of end bracket enclosed circle.

Fig. 9 is that the present invention adopts directly hinged schematic representation of lever block lower end and steel disc.

Figure 10 is the schematic representation that the present invention is used for the motor cycle rear wheel braking.

Embodiment

Now being used for the motorcycle front-wheel braking describes for example, referring to Fig. 2 and Fig. 7, piston packing 29 is packed in the annular groove of housing 1 inner chamber, piston 11 inner chamber of packing into from the lower end of housing 1, cushion cover 37 inserts the screw of the connection banking stop 35 on housing 1 internal chamber wall, banking stop 35 is contained in the falling in " T " groove an of side of piston 11, and screw 36 passes the slotted eye of banking stop 35 bottoms and cushion cover 37 and is connected in the screw on housing 1 internal chamber wall;

Referring to Fig. 2 and Fig. 4, with steel wire roller 13 is stuck in the arc groove 28 of circular arc cam 38 upper right quarters of lever block 12 upper ends, the pusher dog of lever block 12 lower ends is in the groove 27 of piston upper end, and cooperates with the slide block 14 of operating mechanism;

Referring to Fig. 2, slide block 14 is hinged with an end of steel disc 15, and it is hinged with an end of return spring seat 20 that the other end of steel disc 15 passes plate washer 16 backs; The other end of return spring seat 20 penetrates the return spring sleeve 17 that is connected housing 1 right side, loads onto rubbery flat gasket 34 sealings in the return spring sleeve 17 and the joint of housing 1; Return spring 18 is packed in the return spring sleeve 17, and an end contacts with return spring seat 20; The screw-internal thread fit of the outside thread of mandrel 40 right parts and stationary gland 19 center holes is also stretched out stationary gland 19, and the internal thread of stationary gland 19 circumference is connected with return spring sleeve 17 1 end outside threads, and is adhesively fixed with anaerobic adhesive; Adjusting nut 41, stop nut 42, gap adjustment nut 43 cooperate with the outside thread of the right part of mandrel 40 successively, and mandrel 40 moved to right rotation, the step on mandrel 40 right sides is contacted with the center hole of stationary gland 19, adjusting nut 41 screwed with the exterior edge face of stationary gland 19 contact, regulating stop nut 42, to make itself and adjustable range between the adjusting nut 41 be 5 millimeters, with anaerobic adhesive stop nut 42 is bonded on the mandrel 40 and fixes; In use, can as the case may be adjusting nut 41 rotations be moved right, 40 of mandrels are moved to the left, and reduce the distance between adjusting nut 41 and the stop nut 42, and pushing tow return spring 18, to increase elastic force; The lower end of steel cable sleeve pipe 22 is enclosed within the right-hand member of mandrel 40, and contacts with gap adjustment nut 43, and rotary gap adjusting nut 43 moves right, and can compensate 22 distortion of steel cable sleeve pipe and shorten the gap that produces; One end of steel cable 21 passes steel cable sleeve pipe 22, mandrel 40, return spring 18 and return spring seat 20 for being threaded, and the other end of steel cable 21 is connected with the operation handle of motorcycle;

Referring to Fig. 2, the ripple stuffing box gland 32 that oral area is provided with chimb 33 is enclosed within the outside of return spring sleeve 17 and steel cable sleeve pipe 22;

Referring to Fig. 2 and Fig. 3, de-noising sheet 10 is contained in the bottom of housing 1 lower jaw, two screws of two locating studs 9 below housing 1 penetrate jaw, after passing the positioning hole of following shoe plate 7 that is pasted with down friction plate 8 and last shoe plate 5 edges that are pasted with upper friction plate 6, stretch into positioning hole corresponding on the housing 1, two screws below the screw thread of two locating stud 9 lower ends and the housing 1 are connected, and de-noising sheet 10 withstands the knuckle of shoe plate 5 and following shoe plate 7; The following end in contact of last shoe plate 5 and piston 11, following shoe plate 7 contacts with the jaw of housing 1 lower end;

Referring to Fig. 2,, make the last end in contact of the following and banking stop 35 of thread plate 2 with the screw-internal thread fit of thread plate 2 with housing 1 upper end; With spring shaft 3 be contained in thread plate 2 above, counterbalance spring 4 is contained on the spring shaft 3, the one end is fixed on the thread plate 2, the other end is fixed on the housing 1; End bracket enclosed circle 30 is buckled in the upper end of housing 1, buckles end cap 30 then, and be screwed;

Referring to Fig. 1 and Fig. 2, the bearing pin that is connected on connection pin-and-hole on the housing 1 23,24 and the connecting plate 25 is cooperated, connecting plate 25 is contained on the preceding vibration damper of motorcycle, makes the following shoe plate 7 that is pasted with down friction plate 8 and is pasted with the last shoe plate 5 of upper friction plate 6 across the both sides that are contained in the brake disc 26 on the motorcycle front-wheel axle; The other end of steel cable 21 is connected with the operation handle of motorcycle, can comes into operation.

During braking, the driver holds handle, steel cable 21 spurs connected return spring seat 20 to the right, promptly move right with the hinged steel disc 15 of return spring seat 20 and with the hinged slide block 14 of steel disc 15 thereupon, and compression retracteding position spring 18, slide block 14 is the following pusher dog of shifting lever piece 12 simultaneously, lever block 12 is that the fulcrum inhour is rotated with the semi-circular groove 28 of piston 11 upper ends, the roller 13 of lever block 12 upper right quarters i.e. top thread plate 2 upwards, the following shoe plate 7 that is contained on housing 1 jaw is moved up, promote piston 11 simultaneously and push to shoe plate 5 downwards, stick on down the following friction plate 8 of shoe plate 7 and stick on the brake disc 26 that shoe plate 5 upper friction plates 6 are about to be contained on the motorcycle front-wheel axle and clamp, realize braking.Unclamp handle, lever block 12 clockwise rotates under the effect of return spring 18, and the roller of its upper right quarter 13 disengages with thread plate 2,11 under the elastic force effect of piston packing 29 upwards return, i.e. brake off.

Now being used for motor cycle rear wheel braking and having described for example, referring to Fig. 9 and Figure 10, is that the break of Fig. 9 is contained on the fixed bearing of motorcycle with structure, and steel cable 21 is connected with the foot treadle 39 of motorcycle and gets final product.Its braking process is identical with front-wheel with the releasing braking process.

Claims (9)

1, brake for motorcycle, comprise housing (1), be contained in the rocker compensating gear on housing top, be contained in the brake member of lower housing portion jaw, be contained in the housing chamber and be in leverage between rocker compensating gear and the brake member, the operating mechanism that is contained in the housing right side and cooperates with leverage, housing (1) is provided with and connects pin-and-hole (23) and (24), cooperate with the bearing pin that is connected on being contained in connecting plate (25), connecting plate (25) is contained on the vibration damper or fixed bearing of motorcycle, and brake member is the both sides of the brake disc (26) on motorcycle front-wheel axle or the rear-wheel spindle symmetrically; Rocker compensating gear is made up of thread plate (2), spring shaft (3), counterbalance spring (4); Brake member is by last shoe plate (5) and paste upper friction plate (6) on it, shoe plate (7) and following friction plate (8), two locating studs (9) and the de-noising sheet (10) pasted on it are formed down; Leverage is made up of piston (11), lever block (12), roller (13); The slide block of operating mechanism (14) cooperates with lever block (12) lower finger, slide block (14) is hinged with an end of steel disc (15), the other end of steel disc passes plate washer (16) and stretches in the return spring sleeve (17) that is connected with housing (1) right side, hinged with return spring seat (20), return spring (18) is contained in the return spring sleeve (17), its left end contacts with return spring seat (20), it is characterized in that being connected with one by stationary gland (19) between return spring sleeve (17) and steel cable sleeve pipe (22), mandrel (40) and dress adjusting nut (41) thereon, stop nut (42), gap adjustment nut (43) is formed controlling device; The left end of mandrel (40) stretches in the return spring sleeve (17), contacts with the right-hand member of return spring (18); The right-hand member of mandrel (40) passes stationary gland (19) center hole and stretches out, and the internal thread of stationary gland (19) circumference is connected with return spring sleeve (17) one end outside threads, and is adhesively fixed with anaerobic adhesive; Adjusting nut (41), stop nut (42), gap adjustment nut (43) cooperate with the outside thread of the right part of mandrel (40) successively, adjustable range between stop nut (42) and the adjusting nut (41) is the 3-7 millimeter, stop nut (42) is adhesively fixed on the mandrel (40) with anaerobic adhesive, the lower end of steel cable sleeve pipe (22) is enclosed within the right-hand member of mandrel (40), and contacts with gap adjustment nut (43); One end of steel cable (21) passes steel cable sleeve pipe (22), mandrel (40), return spring (18) and return spring seat (20) for being threaded, and the other end of steel cable (21) is connected with the operation handle or the foot treadle of motorcycle.

2, brake for motorcycle according to claim 1 is characterized in that the angle α of connection pin-and-hole (23) center and the line of housing lumen centers and the line that is connected pin-and-hole (24) center and housing lumen centers on the housing (1) is 120 °-175 °.

3, brake for motorcycle according to claim 1, piston (11) the hypomere diameter that it is characterized in that leverage is greater than epimere, the epimere of piston is provided with notch (27), and a side of notch is inverse-T-shaped, is provided with semi-circular groove (28) along the Vertical direction on notch top; The housing inner chamber hypomere diameter that cooperates with piston is also greater than epimere, at the hypomere of housing inner chamber the piston packing that section is a rectangle (29) is installed.

4, brake for motorcycle according to claim 1 is characterized in that housing (1) upper end is buckled with end cap (30), is provided with end bracket enclosed circle (31) between housing upper end and the end cap.

5, brake for motorcycle according to claim 1, the return spring sleeve (17) that it is characterized in that operating mechanism is provided with chimb (33) with the oral area that housing (1) joint, right side is provided with ripple stuffing box gland (32), and this joint also is provided with rubbery flat gasket (34).

6, brake for motorcycle according to claim 1, the thread plate (2) that it is characterized in that rocker compensating gear is screw-thread fit with housing (1) upper end, spring shaft (3) be contained in thread plate above, counterbalance spring (4) is contained on the spring shaft, the one end is fixed on the thread plate, and the other end is fixed on the housing; The last end in contact of the following and banking stop (35) of thread plate (2).

7, brake for motorcycle according to claim 1, the upper friction plate (6) that it is characterized in that being contained in the brake member of lower housing portion jaw sticks on the shoe plate (5), following friction plate (8) sticks on down on the shoe plate (7), two locating studs (9) penetrate jaw below housing, stretch into positioning hole corresponding on the housing after passing down the positioning hole at shoe plate (7) and last shoe plate (5) edge again, the lower end of two locating studs and housing are for being threaded; De-noising sheet (10) is contained in the bottom of housing jaw, and the part of its projection is withstood the knuckle of shoe plate (5) and following shoe plate (7); The following end in contact of last shoe plate and piston (11), following shoe plate contacts with the jaw of housing lower end.

8, brake for motorcycle according to claim 1, the both sides, top that it is characterized in that the lever block (12) of leverage are provided with circular arc cam (38), the upper right quarter of circular arc cam is provided with arc groove, roller (13) is housed in the arc groove, the circular arc cam (38) of both sides, lever block top cooperates with the semi-circular groove (28) of the upper end of piston, the pusher dog that lever block (12) bottom is provided with is in the notch (27) of piston upper end, and cooperates with the slide block (14) of operating mechanism.

9, brake for motorcycle according to claim 1, a side that it is characterized in that the notch (27) that the upper end of the piston (11) of leverage is provided with also is equipped with banking stop (35), the upper end of banking stop exceeds the upper end of piston, the bottom of banking stop is provided with slotted eye, and slotted eye and cushion cover (37) that screw (36) passes the banking stop bottom are connected on the housing (1).

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