CN2436374Y

CN2436374Y - Skid-proof device for car auxiliary brake

Info

Publication number: CN2436374Y
Application number: CN 00215414
Authority: CN
Inventors: 于光成
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-08
Filing date: 2000-07-08
Publication date: 2001-06-27
Anticipated expiration: 2010-07-08

Abstract

The utility model relates to a skid-proof device for a car auxiliary brake, which comprises an auxiliary brake, a retracting and releasing mechanism, and an operating device. The retracting and releasing mechanism is operated by the operating device, and the retraction and the release of the auxiliary brake are realized. A skid-proof wheel and a friction wheel are arranged in a U-shaped frame of the auxiliary brake. The skid-proof wheel is positioned under the friction wheel. A gear wheel which is arranged at each end of a wheel axle of the skid-proof wheel and a gear wheel which is arranged at each end of a wheel axle of the friction wheel are engaged with each other by a couple of intermediate gear wheels which are arranged on a supporting board. The auxiliary brake is laid down while a car is braked simultaneously. The friction wheel and the skid-proof wheel respectively contact tyres and the ground, and the auxiliary braking operation is realized. The utility model has the characteristics that the auxiliary braking effect is good, the wheel locking-proof performance is good, and the skid-proof performance is good.

Description

Automobile auxiliary braking anti-skid device

The utility model relates to a kind of automobile auxiliary braking anti-skid device that acts on the tire surface.

Existing auxiliary brake device for automobile comprises additional brake, jack and operating control, in automobile brake, handle jack by operating control drg is put in the wheel front lower place, brake component on the drg and wheel and ground offset, and play the auxiliary braking effect to automobile.Present disclosed several auxiliary brake device for automobile, be cliding friction between brake component on its drg and wheel and ground, when sliding on ground (freeze or oil arranged) as ground, because brake component and wheel offset, make the aggravation of wheel lockup phenomenon, prevent the poor effect that vehicle slides, vehicle is prone to laterally and skids.

The purpose of this utility model is to provide a kind of automobile auxiliary braking anti-skid device, when this device is used for the automobile auxiliary braking, auxiliary braking effect is preferably arranged not only, can prevent wheel lockup when brake is too urgent again, plays skidproof effect preferably.

For achieving the above object, the automobile auxiliary braking anti-skid device that the utility model provides comprises additional brake, jack and operating control, the structure of additional brake is: two loop bars and crossbeam are affixed, two vertical beams are partly stretched in the loop bar, be connected with extension spring between vertical beam and crossbeam, the transverse axis that torsion spring is housed is contained in two vertical beam bottoms, one end and the transverse axis of two folding and unfolding bars and a driving lever are affixed, the lower end of one cylinder is connected with a cross bar, stretch in the groove on the vertical beam at the two ends of cross bar, the two ends of one crank are hinged with the lower end of the other end of driving lever and cylinder respectively, are provided with piston in the cylinder, be coupled on the piston piston rod upper end and crossbeam against; The structure of additional brake is: two back plates and the affixed formation of a baffle plate " U " shape framework, in this " U " shape framework, anti sliding wheel and friction wheel are housed, anti sliding wheel is positioned at the friction wheel below and both wheel shafts are loaded on the back plate, meshes by a pair of intermediate gear of being located on the stay bearing plate between the gear on gear on the anti sliding wheel axle stub and the friction wheel axle stub; Operating control includes joystick, pull bar, two-position three way air valve and gas tank, and pull bar is connected between joystick and two-position three way air valve; " U " shape framework upper of the other end of two folding and unfolding bars and additional brake is hinged, and two interfaces in the two-position three way air valve join with gas tank and cylinder respectively, the logical atmosphere of another interface.

Crossbeam of the present utility model is fixed in the bottom in compartment, joystick is located in the operator's compartment, and gas tank and two-position three way air valve are fixed on the suitable place of vehicle body, and has proofreaded the position, whereabouts of additional brake, guarantee that it falls the front lower place that is in wheel when putting in place, can use.Principle of work of the present utility model is: the joystick by operating control is handled the two-position three way air valve by pull bar, gas tank is communicated with cylinder, cylinder intake, because the upper end of cylinder piston rod is propped up by crossbeam, under the effect of air pressure, cylinder moves down, cross bar moves down along the groove on the vertical beam, crank drives driving lever and transverse axis rotation simultaneously, the folding and unfolding bar rotates with transverse axis and puts down, the folding and unfolding bar was vertical after cross bar moved to the lower end of groove, cross bar continues to move down and drives the pulling force that vertical beam overcomes extension spring and move down with cylinder, contacts to earth until the anti sliding wheel of additional brake, at this moment, friction wheel and automotive wheels near, realize auxiliary braking and skidproof purpose by friction wheel and anti sliding wheel; After braking is finished, by joystick manipulation two-position three way air valve gas tank and cylinder are disconnected, and make cylinder inner cavity lead to atmosphere, move on the extension spring pulling vertical beam, the transverse axis of torsion spring rotation simultaneously lifts the folding and unfolding bar together with additional brake, at the bottom of the piston of cylinder and cylinder, offset, the upper end of cross bar and vertical beam upper groove offsets, vertical beam and crossbeam offset, this device is promptly finished the gathering process.

This device is when auxiliary braking, and the inertia with brake after anti sliding wheel contacts to earth rolls forward, and anti sliding wheel makes the friction wheel backward rotation by two intermediate gears on the gear on its wheel shaft, the supporting plate and the gear on the friction wheel wheel shaft.Therefore with wheel near friction wheel can after brake, rub wheel to the certain rotation of previous crops, played the purpose that prevents wheel lockup when braking, like this, can prevent that when the road surface is more sliding automobile from laterally skidding.The utlity model has the characteristics that auxiliary braking is effective, antiskid capability is good.

Description of drawings:

Fig. 1 is the constructional drawing of the utility model one embodiment;

Fig. 2 is the left view of Fig. 1.

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Referring to Fig. 1, crossbeam 9 is a laced beam.Be provided with piston 6 in the cylinder 5, in the present embodiment, adopt following structure to make " the piston rod upper end offsets with crossbeam 9 ", being coupled to piston rod on the piston 6 is screwed mutually by outer loop bar 7a and inner screw 7b and constitutes, conical gear 12 is equipped with in the upper end of inner screw 7b, be provided with rotating shaft 11 in crossbeam 9, the engagement that conical gear 10, two

conical gears

10,12 are housed in the rotating shaft 11 makes the piston rod upper end offset with crossbeam 9.The outside, outer loop bar 7a upper end has two lugs 13, cylinder 5 upper surfaces to be provided with and lug 13 cooresponding two grooves 14.When piston 6 leans on mutually with cylinder 5 bottoms, when lug 13 falls within the groove 14, passed through the height of

conical gear

10,12 scalable cylinders 5 by rotating shaft 10.Operating control includes joystick 3, pull bar 2, gas tank 4 and two-position three way air valve 1.Two interfaces in the two-position three way air valve 1 join with gas tank 4 and cylinder 5, the logical atmosphere of another interface, and are controlled by pull bar 2 by handle 3.9 on the vertical beam 17 that transverse axis 18 is equipped with in the bottom and crossbeam are linked to each other by extension spring 8.One end of folding and unfolding bar 19 and fork 16 is fixed on the transverse axis 18, an end of crank 15 and cylinder body 5 lower hinge, and the other end of crank 15 and fork 18 are hinged.Two back plates 27 of additional brake and a baffle plate 21 affixed formation " U " shape frameworks, anti sliding wheel 25 and friction wheel 28 are loaded in " U " shape framework, anti sliding wheel wheel shaft 24, friction wheel wheel shaft 20 are loaded on the

back plate

27, and 22 of gears on gear 26 on anti sliding wheel wheel shaft 24 axle heads and friction wheel wheel shaft 20 axle heads are by a pair of intermediate gear 23 engagements of being located on the stay bearing plate 27.The top of " U " shape framework and the lower end of folding and unfolding bar 19 are hinged.Figure 1 shows that the mode of operation of this device, at this state, friction wheel 28 leans on mutually with automotive wheels 38, and anti sliding wheel 25 offsets with ground.During this device auxiliary braking, inertia with brake after anti sliding wheel 25 contacts to earth rolls forward, anti sliding wheel 25 is by the gear 26 on its wheel shaft, two intermediate gears 23 on the supporting plate 27 and the wheel of gear 22 gearing frictions on the friction wheel wheel shaft 20 28 backward rotation with it, therefore with automotive wheels 38 near friction wheel 28 can after brake, friction automotive wheels 38 prevent the purpose of wheel lockup in the time of having played brake to the certain rotation of previous crops.In addition, be to improve skidproof effect, the surface of anti sliding wheel 25 be evenly equipped with double wedge 25 '.

Referring to Fig. 2, be fixed with two loop bars 29 in crossbeam 9 bottoms, vertical beam 17 parts are stretched in the loop bar 29, by the guiding of loop bar 29, can guarantee vertical beam vertical shifting about in the of 17.Two vertical beams 17 spin with screw rod 33, and conical gear 31 is equipped with in the upper end of screw rod 33, be loaded on also be equipped with in the rotating shaft 11 on the crossbeam 9 two can with conical gear 31 ingear conical gears 30,

conical gear

31 and 30 are disengaged position among Fig. 2.Each parameter of

conical gear

30,10 is identical, and conical gear 31 is identical with each parameter of 12.Cross bar 34 links to each other with cylinder 5 by cant beam 39, the two ends of cross bar 34 stretch in groove 17 on the vertical beam 17 ' in.Transverse axis 18 is loaded on vertical beam 17 lower ends, is enclosed within that torsion spring 35 1 ends on the transverse axis 18 are fixed on the transverse axis, the other end is fixed on the vertical beam 17.It is hinged by axle 36 and back plate 27 that folding and unfolding bar 19 upper ends are fixed on transverse axis 18 upper and lower ends.The surface profile of friction wheel 28 is a rubber for curved surface, the material that matches with the motor tire surface.In addition, extension spring 8 unexpected fractures cause vertical beam 17 to come off when preventing to drive a vehicle, have on two walls of loop bar 29 groove 29 ', be installed with locking pin 37 on the vertical beam 17, locking pin 37 stretch in groove 29 ' in.

Additional brake friction wheel shown in Figure 2 28 is configured to two groups with anti sliding wheel 25, is the additional brake of the double rear wheel that is exclusively used in the every side of autotruck.Wherein, anti sliding wheel is four for 25 every groups, 20, eight anti sliding wheels of two friction wheels, 28 shared friction wheel wheel shafts, 25 shared anti sliding wheel wheel shafts 24, and the gear cluster of being made up of

gear

22,26 and intermediate gear 23 is four groups.

Conical gear

10,12 meshes all the time, when rounding state, and

conical gear

30,31 engagements; Lug 13 is positioned at groove 14; Cross bar 34 offsets with groove 17 ' upper end.Because of satisfying above-mentioned condition,, can make cylinder 5 and vertical beam 17 simultaneously equidistant upper and lower moving with crank 32 rotating shafts 11.Compartment bottom side height different when fully loaded and unloaded go out the height that Che Qianying adjusts cylinder 5 and vertical beam 17 according to the difference of the compartment bottom side height of different automobile types or vehicle, generally with the folding and unfolding bar vertical after, anti sliding wheel is advisable apart from ground 2-4cm.

Claims

1, automobile auxiliary braking anti-skid device, include additional brake, jack and operating control, it is characterized in that, the structure of jack is: two loop bars (29) are affixed with crossbeam (9), two vertical beams (17) part is stretched in the loop bar (29), be connected with extension spring (8) between vertical beam (17) and crossbeam (9), the transverse axis (18) that torsion spring (35) are housed is contained in two vertical beams (17) bottom, one end and the transverse axis (18) of two folding and unfolding bars (19) and a driving lever (16) are affixed, the lower end of one cylinder (5) is connected with a cross bar (34), stretch in the groove (17 ') on the vertical beam (17) at the two ends of cross bar (34), the two ends of one crank (15) are hinged with the lower end of the other end of driving lever (16) and cylinder (5) respectively, be provided with piston (6) in the cylinder (5), be coupled on the piston (6) piston rod upper end and crossbeam (9) against; The structure of additional brake is: two back plates (27) and the affixed formation of a baffle plate (21) " U " shape framework, in this " U " shape framework, anti sliding wheel (25) and friction wheel (28) are housed, anti sliding wheel (25) is positioned at friction wheel (28) below and both wheel shafts are loaded on the back plate (27), meshes by a pair of intermediate gear of being located on the stay bearing plate (27) (23) between the gear (22) on gear (26) on anti sliding wheel wheel shaft (24) axle head and friction wheel wheel shaft (20) axle head; Operating control includes joystick (3), pull bar (2), two-position three way air valve (1) and gas tank (4), and pull bar (2) is connected between joystick (3) and two-position three way air valve (1); " U " shape framework upper of the other end of two folding and unfolding bars (19) and additional brake is hinged, and two interfaces in the two-position three way air valve (1) join with gas tank (4) and cylinder (5) respectively, the logical atmosphere of another interface.

2, automobile auxiliary braking anti-skid device according to claim 1 is characterized in that, the surface of anti sliding wheel (25) is evenly equipped with double wedge (25 '), and the surface profile of friction wheel (28) is the curved surface that matches with the motor tire surface.

3, automobile auxiliary braking anti-skid device according to claim 1, it is characterized in that, piston rod screws formation mutually by outer loop bar (7a) and inner screw (7b), conical gear (12) is equipped with in the upper end of inner screw (7b), there are two lugs (13) in the outside, outer loop bar (7a) upper end, cylinder (5) upper surface is provided with and cooresponding two grooves of lug (13) (14), vertical beam (17) spins with screw rod (33), conical gear (31) is equipped with in the upper end of screw rod (33), rotating shaft (11) is housed on the crossbeam (9), be equipped with three in the rotating shaft (11) and go up helical wheel (12 with inner screw (7b) and screw rod (33) respectively, 31) conical gear (10 that is meshed, one end of 30), rotating shaft (11) is provided with crank (32).

4, automobile auxiliary braking anti-skid device according to claim 1 is characterized in that, has groove (29 ') on two walls of loop bar (29), is installed with two locking pins (37) on the vertical beam (17), and locking pin (37) is stretched in the groove (29 ').