CN206522382U - A kind of complete disc brake with clearance compensation function - Google Patents

Abstract

A kind of complete disc brake with clearance compensation function, including brake disc and hub unit, bow compass（29）, braking force transfer mechanism, brake disc and hub unit include wheel hub（3）And brake disc（32）, outside friction disc（28）Along brake disc（32）Circumference one annular of formation, braking force transfer mechanism includes swivel becket（8）, promote ring（9）, guiding trestle（10）, inside plain calipers（5）With several first order force-increasing mechanisms, first order force-increasing mechanism includes actuator（1）, support arm（6）, gear shaft（7）And rocker compensating gear.Rocker compensating gear can realize clearance compensation function；Braking force transfer mechanism just realize the purpose of circumferentially uniform output brake force by a power source.

Description

A kind of complete disc brake with clearance compensation function

Technical field

The utility model is related to a kind of complete disc brake, more specifically to a kind of complete with clearance compensation function Disk brake, belongs to automobile brake technical field.

Background technology

At present, the disk brake applied to automotive field, often respectively only has a piece of friction plate with brake disc in circle per side All smaller areas coordinate, and so the contact area of the two is limited.However, the heat overwhelming majority that braking is produced is by brake disc Undertaken with friction plate, in the case of vehicle high-speed or heavy duty, the friction plate of such limited areal is difficult to undertake bigger heat, Friction plate service life can be influenceed by serious, therefore increase friction area is particularly important.

Setting more friction plates matched along brake disc circumference or even forming the cooperation of complete annular to be effectively increased The contact area of the two, this requires to be uniformly distributed with multiple brake force to promote friction plate in brake disc whole circumference Engaged with brake disc, this multiple brake force, which are distributed and promoted along brake disc even circumferential, almost covers brake disc annular surface The disk brake that friction plate is engaged with brake disc is complete disc brake.Complete disc brake has larger thermal capacity, It is enough to undertake the heat energy that braking is produced.But, such complete disc brake will reach that brake force is distributed along brake disc even circumferential, The configuration of input power seems particularly complicated；Existing complete disc brake generally provides input power using multiple power sources, but It tends not to reach requirement of uniform size while being also uneconomic.Meanwhile, applied to the brake on vehicle toward contact The function with parking is needed, and existing complete disc brake realizes that parking function is often limited by factors, Such as space limitation or cost increase；In addition, braking each time for brake can all cause the abrasion of brake disc and friction plate, This abrasion can increase the gap between brake disc and friction plate, and existing complete disc brake is without this abrasion of compensation The function in gap.

The content of the invention

The utility model is provided input power using multiple power sources for existing complete disc brake and tends not to reach The problems such as to requirement of uniform size, without wearing clearance compensation function, there is provided a kind of overall with clearance compensation function Formula brake.

To achieve the above object, technical solution of the present utility model is：It is a kind of overall with clearance compensation function Formula brake, including brake disc and hub unit and bow compass, described brake disc include wheel hub and brake disc with hub unit, Described brake disc is arranged on wheel hub, and described bow compass is internally provided with outside friction disc, and described brake disc is located at wild card Pincers inner side, described outside friction disc also includes braking force transfer mechanism, described system along brake disc circumference one annular of formation Poewr transmission mechanism includes swivel becket, promote ring, guiding trestle, inside plain calipers and several first order force-increasing mechanisms, and described the One-level force-increasing mechanism includes corresponding teeth wheel shaft on actuator, support arm, gear shaft and rocker compensating gear, described inside plain calipers and set Several connecting holes are equipped with, herein several are one or more, and described bow compass is coaxially connected with inside plain calipers, described Brake disc and hub unit and bow compass and inside plain calipers it is coaxially arranged, described actuator is provided with promotion rod member, described Support arm one end is provided with pivoted hole, and described promotion rod member is articulated by pivoted hole with support arm, the support arm other end with Gear shaft one end is connected, and the support arm end center to pivoted hole centre distance be L1, the described gear shaft other end It is nested with the connecting hole of corresponding inside plain calipers, and the gear shaft end termination is set to gear, the radius of turn of the gear is L2, described swivel becket is internally provided with ring gear, and swivel becket is coaxially mounted to inside plain calipers inner chamber, the ring gear and tooth of swivel becket The gear of wheel shaft is meshed, and is provided with multiple screw inclined planes, the promotion ring and is provided with and screw inclined plane number on swivel becket Roller is provided with by bearing pin I on equal and corresponding with screw inclined plane boss, described boss, described screw inclined plane with Roller on corresponding boss is engaged, and promotes the inner ring of ring to be provided with multiple guide rollers by pin shaft II, described The guide groove equal and corresponding with guide roller number is provided with guiding trestle excircle, described guide groove is spiral Groove, the hand of spiral of guide groove lead angle opposite and guide groove with the hand of spiral of screw inclined plane is more than the spiral shell of screw inclined plane Lift angle is revolved, described guide roller is assemblied in guide groove and can moved along its hand of spiral, is set on described promotion ring There is inner attrition piece, two or more returning springs, institute are symmetrically disposed between described promotion ring and inside plain calipers The returning spring one end stated is with promoting ring to be connected, and the returning spring other end is connected with inside plain calipers.

Described outside friction disc is that more than two panels or two panels, outside friction disc more than two panels or two panels is equal inside bow compass It is even to be arranged symmetrically, and outside friction disc one annular of formation more than two panels or two panels.

Described outside friction disc and inner attrition piece all include being provided with multiple circles in friction material and steel back, described steel back On column-shaped projection, the bow compass installation site of outside friction disc and promote ring on inner attrition piece installation site on be provided with The mounting hole I corresponding with multiple cylindrical protrusions is provided with friction plate mounting surface, described friction plate mounting surface, it is described Cylindrical protrusions are embedded in corresponding mounting hole I.

Described bow compass is loop configuration, and the excircle of bow compass has been uniformly and symmetrically distributed contiguous block, described connection Two notches, and width of the spacing not less than outside friction disc between adjacent contiguous block are provided with block.

Sealing device is installed, described sealing device includes being provided with cover plate, the cover plate on described promotion ring The through hole corresponding with promoting the boss on ring, described boss is nested with corresponding through hole, and cover plate is fixed on inside plain calipers On.

Rubber protective cover is installed, described rubber protective cover is Collapsible structure, rubber protective cover on described through hole One end is arranged in through hole, and the rubber protective cover other end is arranged on boss.

Oil sealing and protective cover plate are installed on described gear shaft.

Along the circumferential direction it has been uniformly and symmetrically distributed on multiple guide rails, the brake disc inner periphery and has been provided with described wheel hub The equal and corresponding guide groove with the number on wheel hub, described guide rail is engaged with corresponding guide groove.

Elastomeric isolation element and rigid separator members are provided between described guide rail and guide groove.

Compared with prior art, the beneficial effects of the utility model are：

1st, first order force-increasing mechanism includes rocker compensating gear in the utility model, and the rocker compensating gear can compensate for Brake disc and outside friction disc, inner attrition piece are because the gap that abrasion is produced, so as to realize clearance compensation function.

2nd, the utility model includes braking force transfer mechanism, so that can just be realized along circle by a power source The purpose of all uniform output brake force, and economy is stronger.

3rd, promoted in the utility model on ring and sealing device is installed, the design of sealing device ensure that brake exists Normal work under various hot and humid adverse circumstances.

Brief description of the drawings

Fig. 1 is the utility model explosive view.

Fig. 2 is inner side view when the utility model is installed on vehicle left side non-steered wheel.

Fig. 3 is outer side view when the utility model is installed on vehicle left side non-steered wheel.

Fig. 4 is that the utility model is arranged on half sectional view on axletree.

Fig. 5 is braking force transfer mechanism explosive view in the utility model.

Fig. 6 is braking force transfer mechanism isometric view in the utility model.

Fig. 7 is support arm and gear shaft isometric view in the utility model.

Fig. 8 is braking force transfer mechanism partial sectional view in the utility model.

Fig. 9 is swivel becket and promotion ring isometric view in the utility model.

Figure 10 is promotion ring and guiding trestle isometric view in the utility model.

Figure 11 is bow compass axonometric drawing in the utility model.

Figure 12 is inner attrition piece and promotion annulate shaft mapping in the utility model.

Figure 13 is brake disc and hub unit explosive view in the utility model.

Figure 14 be brake disc and the half-sectional isometric view of hub unit in the utility model,

Figure 15 is elastomeric isolation component structure schematic diagram in the utility model.

Figure 16 is rigid separator members structural representation in the utility model.

Figure 17 is sealing device partial sectional view in the utility model.

In figure, actuator 1 promotes rod member 2, and wheel hub 3, support 4, inside plain calipers 5, support arm 6, gear shaft 7, swivel becket 8 is pushed away Rotating ring 9, guiding trestle 10, pivoted hole 11, connecting hole 12, gear 13, ring gear 14, bottom surface 15, bottom supporting surface 16, inner ring 17, the face of cylinder 18, screw inclined plane 19, boss 20, bearing pin I 21, roller 22, guide roller 23, pin shaft II 24, guide groove 25, flower Key I 26, spline II 27, outside friction disc 28, bow compass 29, inner attrition piece 30, bushing 31, brake disc 32, returning spring 33, bolt 34, friction material 35, steel back 36, cylindrical protrusions 37, friction plate mounting surface 38, mounting hole 39, screw 40, contiguous block 41, ring Shape outer surface 42, annular inner surface 43, notch 44, sealing device 45, cover plate 46, fixing hole 47, rubber protective cover 48, oil sealing 49, protective cover plate 50, axletree 51, bearing 52, bearing bore 53, guide rail 54, guide groove 55, ventilating duct 56, elastomeric isolation element 57, just Sexual isolation element 58.

Embodiment

The utility model is described in further detail below in conjunction with brief description of the drawings and embodiment.

Description herein in connection with " inner side " " outside " is related to longitudinal direction of car center line, is " outer away from center line Side ", is inner side close to center line；Used term " axial direction ", " radial direction ", " tangential " etc. it is similar statement with wheel of vehicle and The axis of rotation of axletree is related.

Referring to Fig. 1 to Fig. 4, a kind of complete disc brake with clearance compensation function, for needing to rotary motion portion The equipment that part is braked, is mainly used in commercial car, and it includes brake disc and hub unit, braking force transfer mechanism and bow compass 29.Described brake disc includes wheel hub 3 and brake disc 32 with hub unit, and brake disc 32 is arranged on wheel hub 3, brake disc 32 with Wheel hub 3 rotates together；Brake disc 32 and wheel hub 3 and axletree 51 or fork center shaft R are coaxially arranged, and brake disc 32 can be relative Wheel hub 3 is moved axially, and the transmission moment of torsion that cooperates.Described braking force transfer mechanism includes swivel becket 8, promotes ring 9, is oriented to Support 10, inside plain calipers 5 and several first order force-increasing mechanisms；Corresponding teeth wheel shaft 7 is provided with several companies on described inside plain calipers 5 Connect hole 12.Described first order force-increasing mechanism includes actuator 1, support arm 6, gear shaft 7 and rocker compensating gear.Brake force is passed Pass the actuator 1 in mechanism and input power F1 is provided, then by first order force-increasing mechanism, swivel becket 8, promotion ring 9 and guiding trestle 10 amplification and the axial brake force power output F2 for being converted into this brake.Herein several are one or more, you can with Using two or more first order force-increasing mechanisms to obtain bigger input power.

Referring to Figure 11, described bow compass 29 be coaxially connected by bolt 34 with inside plain calipers 5 surround one it is semi-open Both cavity, bow compass 29 and inside plain calipers 5 do not rotate with wheel.Described brake disc and hub unit and bow compass 29 and Inside plain calipers 5 is coaxially arranged；Brake disc 32 is installed on the inside cavity that bow compass 29 and inside plain calipers 5 are surrounded, and the axle system of looking up Moving plate 32 is located between bow compass 29 and inside plain calipers 5.Inside plain calipers 5 is direct or indirect to be connected on axletree 51 or knuckle, and It is coaxial with the center of axletree 51 or fork center shaft；Generally, inside plain calipers 5 is fixedly connected on axletree 51 or knuckle by bolt 34 On.

Referring to Figure 11, described bow compass 29 is loop configuration, and the excircle of bow compass 29 has been uniformly and symmetrically distributed multiple Axially extending is generally the contiguous block 41 of " U-shaped "；There is larger space to be spaced apart between adjacent contiguous block 41, And the spacing between adjacent contiguous block 41 is not less than the width of outside friction disc 28.Two notches are provided with described contiguous block 41 44, to facilitate the installation of bolt 34, while air circulation accelerated heat can also be promoted to distribute.

Referring to Figure 11, described bow compass 29 is internally provided with outside friction disc 28, and described outside friction disc 28 is located at braking The outside of disk 32；Inner attrition piece 30 is correspondingly arranged on described promotion ring 9 with outside friction disc 28, described inner attrition piece 30 is located at The inner side of brake disc 32.Described outside friction disc 28 forms an annular along the circumference of brake disc 32；The number of outside friction disc 28 according to Its structure determination, for example with two semicircle friction plates or more than two fan-shaped friction plates, it can also be provided that one complete Whole annular friction piece.Outside friction disc 28 can be fixed on bow compass 29 using dismountable mode, it would however also be possible to employ welding It is fixed to Deng other modes being permanently fixed on bow compass 29；Inner attrition piece 30 can be used and the identical of outside friction disc 28 is installed Mode, which is arranged on, to be promoted on ring 9.

Referring to Figure 11, it is further preferred that described outside friction disc 28 is more than two panels or two panels, more than two panels or two panels Outside friction disc 28 symmetrically arrange that and more than two panels or two panels outer rubs around brake center R inside bow compass 29 Pad 28 generally constitutes one annular of formation.

Referring to Figure 11, outside friction disc 28 and inner attrition piece 30 are generally a sector structures, all including friction material 35 With steel back 36.The installation of outside friction disc 28 on multiple cylindrical protrusions 37, the bow compass 29 is provided with described steel back 36 On position and promotion ring 9 friction plate mounting surface 38 is provided with the installation site of inner attrition piece 30；Described friction plate is installed The mounting hole 39 corresponding with multiple cylindrical protrusions 37 is provided with face 38, described cylindrical protrusions 37 are embedded in corresponding In mounting hole 39；And between outside friction disc 28 and bow compass 29, inner attrition piece 30 and promote ring 9 between pass through the phase of screw 40 respectively Connection, screw 40 by between outside friction disc 28 and bow compass 29, inner attrition piece 30 and promote ring 9 between link together with limit The axial freedom of outside friction disc 28, inner attrition piece 30.

Referring to Figure 11, specifically, on the bow compass 29 outside friction disc 28 installation site bow compass 29 two companies Connect between block 41, the width of outside friction disc 28 is slightly smaller than the gap between two contiguous blocks 41, after such outside friction disc 28 weares and teares, Easily outside friction disc 28 can diametrically be taken out, beneficial to maintenance and replacing.Described brake disc 32 is located at wild card The inner side of pincers 29, the annular outer surface 42 of the surface of friction material 35 of outside friction disc 28 towards brake disc 32；Inner attrition piece 30 rubs Wipe annular inner surface 43 of the surface of material 35 towards brake disc 32.

Referring to Fig. 1 to Fig. 6, actuator 1 is direct or indirect to be fixed on axletree 51 or knuckle, is specially：Described Actuator 1 is fixedly attached on axletree 51 by support 4, or actuator 11 is directly connected with inside plain calipers 5；When for deflecting roller When, actuator 1 can also be connected on knuckle.Actuator 1 passes through air pressure or hydraulic-driven；When this brake is stayed for needs When on the wheel of car function, actuator 1 can also be using mechanical energy driving.In commercial car field, so there is air pressure and machinery The actuator 1 of two kinds of type of drive of energy is exactly one " spring air chamber for parking ", and realization can carry out service brake again can parking The purpose of braking.Described actuator 1 is provided with promotion rod member 2, promotes rod member 2 to transmit input power F1 with protruding, Input power F1 directions are with promoting the axis of rod member 2 in the same direction；The inside of actuator 1 is equipped with return spring, cuts off input power F1 pushers Lever part 2 can automatically revert to initial position.

Referring to Fig. 5 to Fig. 8, described one end of support arm 6 is provided with pivoted hole 11, and described promotion rod member 2 passes through pivot joint Hole 11 and support arm 6 are articulated and transmit input power F1；The other end of support arm 6 is connected with the one end of gear shaft 7, and support arm 6 The center at the end is that L1, i.e. support arm 6 are L1 around the axis r of gear shaft 7 arm of forces rotated to the centre distance of pivoted hole 11. It can be connected between described support arm 6 and gear shaft 7 with diversified forms, such as tooth or screw thread even make the two One entirety；Generally both are connected by spline, i.e., the support arm 6 and the connection end of gear shaft 7 are provided with spline I 26, The spline II 27 being engaged with spline I 26, described spline I 26 and the phase of spline II 27 are provided with described end of gear shaft 7 Connection, now the center of the spline I 26 to pivoted hole 11 centre distance be L1.The described other end of gear shaft 7 is nested with In the connecting hole 12 of inside plain calipers 5, bearing or bushing 31 are installed to promote the rotation of gear shaft 7 in the two matching part；And The end termination of gear shaft 7 is set to gear 13, and described gear 13 is located in the cavity of inside plain calipers 5, the radius of turn of gear 13 For L2.Generally, described L1 is more than the radius of turn L2 of gear 13, and this structure can play a part of reinforcement, increases Power multiple is equal to rotary arm L1 and gear radius of turn L2 ratio, and this numerical value is general in the range of 2~5.Support arm 6 Axis r with movable gear shaft 7 together around gear shaft 7 is rotated, and input power F1 is amplified into certain multiple by this rotation and turned Turn to torsional moment T1；In above-mentioned motion, support arm 6 is with promoting rod member 2 to rotate against one around the pivot joint central shaft of the two Determine angle, and promote rod member 2 to have a beat by a small margin in the total travel stretched out or withdrawn.

Referring to Fig. 5 to Fig. 9, referring to Fig. 4, described swivel becket 8 is internally provided with ring gear 14, and swivel becket 8 is co-axially mounted In the cavity of inside plain calipers 5, the ring gear 14 of swivel becket 8 is meshed to transmit torsional moment T1 with the gear 13 of gear shaft 7；That is tooth Wheel shaft 7 is connected by the cooperation of tooth with swivel becket 8, and drives swivel becket 8 around its own axis in the presence of torsional moment T1 Line R rotates, and so produces second torque T 2.Ring gear 14 could be arranged to an entirety with swivel becket 8, can also pass through weldering Connect or other dismountable modes make ring gear 14 be fixed together with swivel becket 8；Ring gear 14 can be one complete An annular or annular part.Swivel becket 8 also has an inner ring 17 and a bottom surface 15, the bottom surface of swivel becket 8 15 are in contact cooperation with the bottom supporting surface 16 of inside plain calipers 5, and the inner ring 17 of swivel becket 8 is engaged with the face of cylinder 18 of inside plain calipers 5. Further, between the bottom surface 15 of the swivel becket 8 and the bottom supporting surface 16 of inside plain calipers 5, the inner ring 17 of swivel becket 8 with it is interior The coating or bearing of low-friction coefficient are provided between the face of cylinder 18 of clamp 5.It is noted herein that, swivel becket 8 Inner ring 17 and the cooperation on the face of cylinder 18 of inside plain calipers 5, it would however also be possible to employ the outer ring of swivel becket 8 is with inside plain calipers 5 slightly by outer cylinder Positive is substituted, as long as other that ensure that swivel becket 8 can rotate around central shaft R and not moved on axial direction any are matched somebody with somebody Conjunction form is all possible.

Referring to Fig. 5 to Fig. 6, Fig. 8 to Figure 10, multiple screw inclined planes being centrosymmetric are provided with described swivel becket 8 19, the lead angle of multiple screw inclined planes 19 is identical.Be provided with described promotion ring 9 it is equal with the number of screw inclined plane 19 and with Roller 22 is provided with by bearing pin I 21 on the corresponding cylindrical boss 20 of screw inclined plane 19, described boss 20；Described spiral shell Rotation inclined-plane 19 is engaged with the roller 22 on corresponding boss 20, and all screw inclined plane 19 and corresponding during work Roller 22 is engaged simultaneously.The axis of all rollers 22 is with promoting the axis R of ring 9 to intersect, it is preferred that all rollers 22 Axis be located at same sagittal plane in, roller 22 can be rotated around respective bearing pin I 21.When for vehicle revolver, spiral shell The hand of spiral for revolving inclined-plane 19 is dextrorotation；When complete disc brake is used for vehicle right wheel, the hand of spiral of screw inclined plane 19 is then To be left-handed.Generally, the number of the screw inclined plane 19 is 2~10；The lead angle of the screw inclined plane 19 is 8 °~18 °.

Referring to Fig. 8 to Figure 10, promote the inner ring of ring 9 that multiple guide rollers 23 are installed by pin shaft II 24, it is multiple to be oriented to The lead angle of groove 25 is identical；The axis of all guide rollers 23 is with promoting the axis R of ring 9 to intersect, it is preferred that all to lead The axis of way roller 23 is located in same sagittal plane, and guide roller 23 can be rotated around respective pin shaft II 24；Orienting roll The number of wheel 23 is traditionally arranged to be 3~10.Described guiding trestle 10 is fixed on inside plain calipers 5, or is made with inside plain calipers 5 One entirety；Support 10 can also be directed to be fixed on axletree or knuckle, this depends on design requirement.Described guiding The guide groove 25 equal and corresponding one by one with the number of guide roller 23, described guide groove 25 are provided with the excircle of support 10 For helicla flute, the hand of spiral of guide groove 25 is opposite with the hand of spiral of screw inclined plane 19 and lead angle of guide groove 25 is more than The lead angle of screw inclined plane 19, the lead angle of guide groove 25 is 72 °~82 °.The width of guide groove 25 is slightly larger than orienting roll The diameter of wheel 23, guide roller 23 is assemblied in guide groove 25 and can moved along its hand of spiral, on the axial direction of guide roller 23 Displacement amplitude be greater than rotational steps radially.When swivel becket 8 is rotated in the presence of torque T 2, roller 22 is along spiral Inclined-plane 19 is rolled, while the hand of spiral of the guide roller 23 along guide groove 25 is moved；Torque T 2 is converted into axial braking output Power F2, and force value is amplified into several times again, multiplication factor is equal to the cotangent value of the lead angle of screw inclined plane 19, multiplication factor Number range is 3~7 times.

Referring to Fig. 1, Fig. 4, symmetrically it is disposed between described promotion ring 9 and inside plain calipers 5 two or more Returning spring 33, described one end of returning spring 33 is with promoting ring 9 to be connected, and the other end of returning spring 33 is connected with inside plain calipers 5 Connect.Generally described returning spring 33 is evenly distributed on the excircle of inside plain calipers 5, and returning spring 33 can also be arranged on inside plain calipers Within 5 cavity, this depends on actual operation requirements.

Referring to Figure 13 to Figure 16, the described inside of wheel hub 3 has two bearing bores 53, and the outer ring of two bearings 52 is arranged on In bearing bore 53, the inner ring of two bearings 52 is then arranged on the central shaft of axletree 51, when for deflecting roller in bearing 52 Circle is on the central shaft of knuckle；The center and the center of bearing 52 of the wheel hub 3 and the center of axletree 51 or knuckle Coaxially, such setting allows wheel hub 3 to be rotated around the central shaft of axletree 51 or knuckle.Wheel hub 3 by wheel bolt and Wheel linking together coaxially, wheel hub 3 can rotate with wheel.

Referring to Figure 13 to Figure 16, connection between brake disc 32 and wheel hub 3 can using internal tooth and external tooth cooperation or The cooperation of sliding pin and pin-and-hole makes the purpose of brake disc axial movement to reach, it is preferred that along the circumferential direction equal on described wheel hub 3 It is even be symmetrically distributed with multiple guide rails 54, the inner periphery of brake disc 32 be provided with it is equal with the number of guide rail 54 on wheel hub 3 and Corresponding guide groove 55, described guide rail 54 is engaged with corresponding guide groove 55；Herein multiple are 3 or more than 3.System The ventilating duct 56 beneficial to radiating is provided with the excircle of Moving plate 32；When for some other disk brake, brake disc 32 can also a solid disk and without ventilating duct 56.Described guide rail 54 is cylindrical by guide rail root and the wheel hub of wheel hub 3 It is connected；There is certain interval between the excircle of guide rail 54 and wheel hub 3, the gap accelerates radiating.It is a variety of in the utility model The design of radiator structure, improves the radiating condition of brake, the operating mode for making it more adapt to high capacity high speed.

Referring to Figure 13 to Figure 16, further, elastomeric isolation element 57 is provided between described guide rail 54 and guide groove 55 With rigid separator members 58；Specifically, described elastomeric isolation element 57 and rigid separator members 58 is arranged on by screw 40 On the fixing hole 47 of the end face of guide rail 54.Brake disc 32 relativeatoeterahub 3 can be axially moveable on guide rail 54, meanwhile, elasticity every The heat transfer between brake disc 32 and wheel hub 3 has been obstructed from element 57 and rigid separator members 58；And elastomeric isolation element 57 Also there is the axial movement for brake disc 32 to provide damping and the effect of brake disc balance is kept, rigid separator members 58 can also be held Carry on a shoulder pole most braking moment.

Referring to Fig. 1 to Figure 12, when swivel becket 8 is rotated in the presence of torque T 2, roller 22 is rolled along screw inclined plane 19, Under the guiding of guide groove 25, the hand of spiral of the ring 9 along guide groove 25 is promoted to move outside lateral movement；In this transmittance process Input power is exaggerated several times again, and the multiplication factor of brake force is equal to the cotangent value of the lead angle of screw inclined plane 19, numerical value model Enclose for 3~7 times.Finally, axial braking power output F2 is by promoting the inboard friction piece 30 on ring 9 to be applied to brake disc 32 Annular inner surface 43, and promote brake disc 32 axially move closer to outboard friction piece 28, outboard friction piece 28 produces a size phase Equidirectional opposite reaction force acts are in brake disc 32, and such inboard friction piece 30 and outboard friction piece 28 clamp system jointly Moving plate 32 and therewith phase mutual friction produce braking torque and complete braking.After end of braking, the reply dress of the formation of return spring 33 Put and swivel becket 8 is retracted into initial position, while driving the miscellaneous part return together on braking force transfer mechanism；Brake disc 32 is then Depart from outboard friction piece 28 by centrifugal force or vibration after wheel is moved again.

Referring to Figure 17, sealing device 45 is installed on described promotion ring 9, described sealing device 45 includes cover plate 46； The through hole 47 corresponding with promoting the boss 20 on ring 9 is provided with the cover plate 46, described boss 20 is nested with corresponding Through hole 47 in, cover plate 46 is fixed on inside plain calipers 5 by screw 40 so that boss 20 can be freed in and out in through hole 47. Further, rubber protective cover 48 is installed, described rubber protective cover 48 is telescopic structure, rubber on described through hole 47 The one end of glue protective cover 48 is arranged in through hole 47, and the other end of rubber protective cover 48 is arranged on boss 20.Thus sealing device 45 A sealed cavity is constituted together with inside plain calipers 5, by the roller on the gear 13 of swivel becket 8 and gear shaft 7 and promotion ring 9 22 grades need the critical component rotated to be all included in inside cavity, so as to reach the purpose for protecting these parts.Together When, oil sealing 49 and protective cover plate 50 are installed on described gear shaft 7 so that the matching part of gear shaft 7 and inside plain calipers 5 is real Sealing is showed.

Referring to Fig. 1 to Figure 12, meanwhile, the effective travel of the promotion rod member 2 of the actuator 1 is limited, and when braking Disk 32 and outside friction disc 28, inner attrition piece 30 are because phase mutual friction can produce gap after producing abrasion, and this will necessarily increase promotion The stroke of rod member 2, the stroke after this increase, which exceedes, will influence retardation efficiency or even make system after the effective travel for promoting rod member 2 Dynamic device loses stopping power, it can thus be appreciated that the Stroke Control of rod member 2 must will be promoted in its effective travel the moment.Therefore this is complete Disk brake correspondence actuator 1 be provided with several rocker compensating gears compensate brake disc 32 and with outside friction disc 28, interior Friction plate 30 is because the gap that abrasion is produced, the rocker compensating gear is by controlling the anglec of rotation indirect control of support arm 6 to push away The stroke of lever part 2；Rocker compensating gear may be mounted on any part of braking force transfer mechanism 4, usual backlash compensation Mechanism built is on support arm 6.For example we set some ensure that promote rod member 2 stroke in the range of effective travel The anglec of rotation, gap sum between corresponding brake disc and outside friction disc 28, inner attrition piece 30 is " brake cabin Gap ", after brake disc and outside friction disc 28, the abrasion of inner attrition piece 30, the gap that the abrasion is produced is more than " brake clearance ", then Rocker compensating gear, which starts to play a role, to be compensated to the gap of generation until brake disc and outside friction disc 28, inner attrition piece 30 Between gap shrinks to " brake clearance ".In commercial car field, the support arm 6 for being built-in with rocker compensating gear can be one Individual so-called " automatic adjusting arm ".

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace, said structure can also be made Protection domain of the present utility model should be all considered as belonging to.

Claims (9)

1. a kind of complete disc brake with clearance compensation function, including brake disc and hub unit and bow compass（29）, institute The brake disc stated includes wheel hub with hub unit（3）And brake disc（32）, described brake disc（32）Installed in wheel hub（3）On, Described bow compass（29）It is internally provided with outside friction disc（28）, described brake disc（32）Positioned at bow compass（29）Inner side, its It is characterised by：Described outside friction disc（28）Along brake disc（32）Circumference one annular of formation, also includes brake force transmission machine Structure, described braking force transfer mechanism includes swivel becket（8）, promote ring（9）, guiding trestle（10）, inside plain calipers（5）And several First order force-increasing mechanism, described first order force-increasing mechanism includes actuator（1）, support arm（6）, gear shaft（7）Mended with gap Repay mechanism, described inside plain calipers（5）Upper corresponding teeth wheel shaft（7）It is provided with several connecting holes（12）, herein several are one Individual or multiple, described bow compass（29）And inside plain calipers（5）Coaxially it is connected, described brake disc and hub unit and bow compass （29）And inside plain calipers（5）Coaxially arranged, described actuator（1）It is provided with promotion rod member（2）, described support arm（6）One end It is provided with pivoted hole（11）, described promotion rod member（2）Pass through pivoted hole（11）With support arm（6）It is articulated, support arm（6）Separately One end and gear shaft（7）One end is connected, and support arm（6）The center at the end is to pivoted hole（11）Centre distance be L1, institute The gear shaft stated（7）The other end is nested with corresponding inside plain calipers（5）Connecting hole（12）It is interior, and gear shaft（7）The end termination is set It is set to gear（13）, the gear（13）Radius of turn be L2, described swivel becket（8）It is internally provided with ring gear（14）, Swivel becket（8）It is coaxially mounted to inside plain calipers（5）Inner chamber, swivel becket（8）Ring gear（14）With gear shaft（7）Gear（13）Phase Engagement, swivel becket（8）On be provided with multiple screw inclined planes（19）, the promotion ring（9）On be provided with and screw inclined plane（19）Number Mesh is equal and and screw inclined plane（19）Corresponding boss（20）, described boss（20）It is upper to pass through bearing pin I（21）Rolling is installed Wheel（22）, described screw inclined plane（19）With corresponding boss（20）On roller（22）It is engaged, promotes ring（9）It is interior Circle passes through pin shaft II（24）Multiple guide rollers are installed（23）, described guiding trestle（10）It is provided with and is oriented on excircle Roller（23）The equal and corresponding guide groove of number（25）, described guide groove（25）For helicla flute, guide groove（25）Spiral shell Revolve direction and screw inclined plane（19）The hand of spiral is opposite and guide groove（25）Lead angle be more than screw inclined plane（19）Spiral shell Revolve lift angle, described guide roller（23）It is assemblied in guide groove（25）It is interior and can be moved along its hand of spiral, described promotion Ring（9）On be provided with inner attrition piece（30）, described promotion ring（9）With inside plain calipers（5）Between be symmetrically disposed with two or More than two returning springs（33）, described returning spring（33）One end is with promoting ring（9）It is connected, returning spring（33）Separately One end and inside plain calipers（5）It is connected.

2. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Outside friction disc（28）More than two panels or two panels, outside friction disc more than two panels or two panels（28）In bow compass（29）Inner homogeneous It is arranged symmetrically, and outside friction disc more than two panels or two panels（28）Form an annular.

3. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Outside friction disc（28）And inner attrition piece（30）All include friction material（35）And steel back（36）, described steel back（36）On be provided with Multiple cylindrical protrusions（37）, the bow compass（29）Upper outside friction disc（28）Installation site and promote ring（9）Rubbed in upper Piece（30）Installation site on be provided with friction plate mounting surface（38）, described friction plate mounting surface（38）On be provided with it is many Individual cylindrical protrusions（37）Corresponding mounting hole I（39）, described cylindrical protrusions（37）Embedded corresponding mounting hole I （39）It is interior.

4. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Bow compass（29）For loop configuration, bow compass（29）Excircle be uniformly and symmetrically distributed contiguous block（41）, described contiguous block （41）On be provided with two notches（44）, and adjacent contiguous block（41）Between spacing be not less than outside friction disc（28）Width.

5. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Promote ring（9）On sealing device is installed（45）, described sealing device（45）Including cover plate（46）, the cover plate（46）On set It is equipped with promoting ring（9）On boss（20）Corresponding through hole, described boss（20）It is nested with corresponding through hole, covers Plate（46）It is fixed on inside plain calipers（5）On.

6. a kind of complete disc brake with clearance compensation function according to claim 5, it is characterised in that：Described Rubber protective cover is installed on through hole（48）, described rubber protective cover（48）For Collapsible structure, rubber protective cover（48）One End is arranged in through hole, rubber protective cover（48）The other end is arranged on boss（20）On.

7. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Gear shaft（7）On oil sealing is installed（49）And protective cover plate（50）.

8. a kind of complete disc brake with clearance compensation function according to claim 1, it is characterised in that：Described Wheel hub（3）On be along the circumferential direction uniformly and symmetrically distributed multiple guide rails（54）, the brake disc（32）Be provided with inner periphery with Wheel hub（3）On guide rail（54）The equal and corresponding guide groove of number（55）, described guide rail（54）With corresponding guide groove （55）It is engaged.

9. a kind of complete disc brake with clearance compensation function according to claim 8, it is characterised in that：Described Guide rail（54）And guide groove（55）Between be provided with elastomeric isolation element（57）And rigid separator members（58）.