CN103335034A - Air pressure disc brake - Google Patents
Air pressure disc brake Download PDFInfo
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- CN103335034A CN103335034A CN2013102767348A CN201310276734A CN103335034A CN 103335034 A CN103335034 A CN 103335034A CN 2013102767348 A CN2013102767348 A CN 2013102767348A CN 201310276734 A CN201310276734 A CN 201310276734A CN 103335034 A CN103335034 A CN 103335034A
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Abstract
The invention relates to an air pressure disc brake which comprises a brake support, a pincer body, a push disc, a pressure base, an eccentric shaft, a bevel gear, an angle gear, a one-way clutch, a gear transmission unit and a screw pushing unit. The pressure base is slidably connected to the pincer body. The eccentric shaft comprises a shaft body and an eccentric disc which is not coaxial with the shaft body. When the eccentric shaft rotates around an axis of the shaft body, the eccentric disc drives the pressure base to do rectilinear translation motion. The bevel gear is arranged on the eccentric shaft, a gap is formed between an adjusting block and an adjusting groove, and through matching between the adjusting block and the adjusting groove, and the coaxial rotation of the bevel gear and the eccentric shaft can be achieved. The angle gear is meshed with the bevel gear, and the angle gear is connected with the gear transmission unit through the one-way clutch in a transmission mode. The gear transmission unit drives the screw pushing unit in a transmission mode, and the screw pushing unit drives the push disc. The air pressure disc brake has the advantages that strength of braking force is not influenced by a brake pincer body structure, transmission ratio of the brake force can be increased, so that the brake force needed by vehicles can be reached, and stability of brake clearance is good.
Description
Technical field
The present invention relates to break, relate in particular to a kind of air-pressure disc brake.
Background technique
Existing air-pressure disc brake, the thrust direction of its brake chamber is axially to promote, clearance adjustment mechanism places in the caliper of break, be subjected to thrust direction and caliper structure influence, braking moment can not increase, influence the velocity ratio of braking force, restricted the raising of braking force, often make car load braking force not reach desired value.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of have big braking force velocity ratio and the easy a kind of air-pressure disc brake adjusted of braking moment are provided.
Above-mentioned purpose is achieved through the following technical solutions.
Described break, comprise brake holder, be arranged on brake disc and the caliper on this brake holder and be arranged on the caliper and be connected with the push-plate of brake pad, also comprise pressure seat, eccentric shaft, umbrella gear, bevel gear, overrunning clutch, gear transmission unit and spiral pushing unit; Described pressure seat is slidingly connected on described caliper, and described spiral pushing unit is arranged on the pressure seat, and pressure seat is connected with push-plate by the spiral pushing unit; Described eccentric shaft comprise axis body and with the axis body eccentric disc of coaxial line not, eccentric shaft is bearing on the described caliper by axis body, described eccentric disc places the eccentric disc hole of pressure seat correspondence, and when eccentric shaft rotated around the axis of axis body, eccentric disc drove pressure seat and push-plate is done translational motion; Described umbrella gear places on the eccentric shaft and by the adjustment piece that is provided with the gap and the mutual shake-up of adjusting groove and realizes that both coaxial lines rotate; Described bevel gear and umbrella gear engagement, bevel gear is by be in transmission connection input gear in the gear transmission unit of overrunning clutch, output gear in the gear transmission unit transmission described spiral pushing unit that is in transmission connection, rotate with the eccentric shaft coaxial line and during drive bevel gear at umbrella gear, by overrunning clutch, gear transmission unit and spiral pushing unit, the brake pad on the push-plate is moved to pressing close to the brake disc direction.
The further design of described break is that described eccentric shaft is provided with the described axis body of two sections coaxial lines, and described eccentric disc is located between this two axis body, and eccentric shaft is bearing on the described caliper by the bearing that is arranged at respectively on two axis bodies.
The further design of described break is that the eccentric disc of described eccentric shaft is provided with the arc surface for described umbrella gear radial location, is provided with described first at the end face perpendicular to this arc surface and adjusts piece or the second adjustment groove.
The further design of described break is that the described first adjustment piece is the rectangular block that protrudes from described end face, and the described second adjustment groove is the rectangle groove that protrudes from described end face.
The further design of described break is that described umbrella gear comprises fastener rings and conial tooth part; The inner ring surface of described fastener rings is provided with the inner arc surface corresponding with described arc surface and adjusts the first adjustment groove or the second adjustment piece that groove matches with the above first adjustment piece or second of eccentric shaft; Described conial tooth part is provided with some awl teeth that the distribution circular arc is not more than 90 °, and this conial tooth part is arranged on described fastener rings outer rim one side.
The further design of described break is, described first adjust groove be recessed in described inner arc surface rectangular recess, described second to adjust piece be the rectangular block that protrudes from described inner arc surface.
The further design of described break is that described umbrella gear is set on the eccentric shaft, and carries out axially locating with the above end face of eccentric shaft, fits into conduct to the location with described inner arc surface and the above arc surface of eccentric shaft; On the described umbrella gear first adjust groove or second adjust piece respectively with eccentric shaft on first adjust piece or second and adjust groove and have cooperatively interacting of gap, the adjustment piece that cooperatively interacts is when adjusting groove and contact, both do rotation in the same way.
The further design of described break is that described gear transmission unit comprises input gear, output gear and excessive gear, carries out engagement driving by at least one excessive gear between described input gear and the output gear; Described bevel gear is by the overrunning clutch that connects in the rotating shaft input gear that is in transmission connection; The described output gear described spiral pushing unit that is in transmission connection; The described output gear described spiral pushing unit that is in transmission connection.
The further design of described break is that described overrunning clutch is unilateral bearing.
The further design of described break is that described pressure seat one side has a gear stand, and each gear of described gear transmission unit rotates and is arranged on this gear stand.
The further design of described break is that described gear stand comprises two dunnages and some rivets, and the parallel placement of described two dunnages is spaced from each other certain distance and by described rivet; Engagement driving in the space of each gear of described gear transmission unit between two dunnages are flat.
The further design of described break is, shown in have rotating shaft, transition gear to be rotatably connected in this rotating shaft between two dunnages and corresponding to the riveted joint of transition gear position; Be provided with first structure hole that allows this input gear pass through respectively on two dunnages and corresponding to input gear position place; Be respectively equipped be used to the attachment hole that makes this output gear radial location and second structure hole that allows this output gear pass through on two dunnages and corresponding to the output gear position, output gear one end is rotationally connected with the attachment hole on the side dunnage, and second structure hole on the opposite side dunnage that an end passes through and described spiral pushing unit are in transmission connection.
The further design of described break is, described spiral pushing unit comprises adjusts cover and screw rod, described adjustment cover is movably connected on the pressure seat, adjust the cover center and be provided with screw, described screw rod is screwed in this screw, adjusts cover or screw rod and is connected with described output gear, is rotatably connected in the screw rod that adjustment overlaps or the adjustment that is rotatably connected in screw rod and overlaps an end and be connected with push-plate on the described caliper, when output gear drove adjustment cover or screw rod rotation, screw rod or adjustment cover drive push-plate axially moved.
The further design of described break is that described pressure seat center is provided with the eccentric disc hole, is provided with the adjustment trepanning vertical with the eccentric disc hole in symmetry both sides, eccentric disc hole; Described eccentric disc is supported in the eccentric disc hole by bearing; Described adjustment is placed on to be adjusted in the trepanning.
The further design of described break is, described adjustment cover is rotatably connected in the described adjustment trepanning and with output gear and is connected, and screw rod is screwed in to be adjusted in the corresponding screw of cover, and an end is connected with push-plate, when output gear drove the rotation of adjustment cover, screw rod drove push-plate and axially moves.
The further design of described break is that described adjustment cover is slidingly connected in the described adjustment trepanning, and an end is connected with push-plate, screw rod is screwed in to be adjusted in the corresponding screw of cover, one end is connected with output gear, when output gear drives the screw rod rotation, adjusts cover drive push-plate and axially moves.
The present invention will brake and the pressure adjustmenting mechanism of brake clearance adjustment places outside the caliper, and by changing the direction of braking force, make the size of braking force not be subjected to the influence of braking clamp body structure, thereby can increase the velocity ratio of braking force, reach the required braking force of vehicle; Simultaneously, also transmit the variable quantity of brake clearance in conjunction with the cooperation of adjusting piece and adjustment groove by the umbrella gear of a special construction, and utilize the variable quantity in this gap of overrunning clutch one-way transmission, make brake clearance can keep more constant value, thereby braking has guaranteed the stable of braking ability, and the braking ability that is of value to break improves.In addition, be arranged on the rotor with eccentric disc adjusting piece or adjusting groove, namely on the eccentric shaft, make braking and the adjustment in gap to realize by the rotation of rotor, thereby make whole regulating mechanism simple for structure, the transmission accuracy height, and cost is low.
Fig. 1 is the structural representation of break of the present invention.
Fig. 2 is the A-A sectional view of break shown in Figure 1.
Fig. 3 is the partial view of break shown in Figure 1.
Fig. 4 is a kind of structural representation of eccentric shaft.
Fig. 5 is a kind of structural representation of umbrella gear.
Fig. 6 is that eccentric shaft the cooperating of groove carries out interconnective schematic representation by adjusting piece with adjusting with umbrella gear.
Fig. 7 adjusts piece T1 and adjusts the schematic representation that there is gap μ in groove T2.
Fig. 8 is the schematic representation of the gap delta between brake disc and the brake pad.
Fig. 9 is the schematic representation of adjusting piece and adjusting groove when being in contact with one another.
Figure 10 is the another kind of structural representation of eccentric shaft.
Figure 11 is the another kind of structural representation of umbrella gear.
Figure 12 is the structural representation of gear stand.
Figure 13 is the gear stand shown in Figure 1 that input gear and unilateral bearing are housed.
Figure 14 is the structural representation of pressure seat.
Among the figure, 1 pressure seat, 2 eccentric shafts, 2a axis body, the 2b eccentric disc, 2c arc surface, 2d end face, 3 umbrella gear, the 3a fastener rings, 2d end face, 3b conial tooth part, 3c inner arc surface, 4 bevel gears, 5 gear transmission units, 5a imports gear, 5c output gear, the excessive gear of 5b, 5d gear stand, 5d1 dunnage, 5d2 rivet, the 5d3 rotating shaft, 5,d11 first structure hole, 5,d12 second structure hole, 6 overrunning clutchs, 7 spiral pushing units, 7a adjusts cover, 7b screw rod, 9 bearings, 100 supports, 101 guide pin bushings, 103 adjust arm, 104 brake discs, 105 calipers, 106 brake pads, 107 push-plates, 108 upper end caps, T1 adjusts piece, and T2 adjusts groove.
Embodiment
Contrast Fig. 1,2, Fig. 3, break of the present invention comprises brake holder 100, be arranged on brake disc 104 and the caliper 105 on this brake holder 100 and be arranged on the caliper and be connected with the push-plate 107 of brake pad 106, especially also comprises pressure seat assembly and gear transmission unit 5 and the spiral pushing unit 7 mainly be made up of pressure seat 1, eccentric shaft 2, umbrella gear 3, bevel gear 4 and overrunning clutch 6.
The pressure seat assembly is slidingly connected on the caliper 105 by pressure seat 1, and spiral pushing unit 7 is arranged on the pressure seat 1, and pressure seat 1 is connected with push-plate 107 by spiral pushing unit 7, and the slip of pressure seat 1 relative caliper is driven by eccentric shaft and forms.Eccentric shaft 2 comprise axis body 2a and with the axis body eccentric disc 2b of coaxial line not, referring to Fig. 4, eccentric shaft 2 is bearing on the caliper 105 by axis body 2a, eccentric disc 2b places the corresponding eccentric disc hole on the pressure seat, at eccentric shaft when the axis of axis body 2a rotates, eccentric disc 2b drives pressure seat 1 and does translational motion with the whole pressure seat assembly and the push-plate 107 that are connected thereon, finishes the motion of the promotion push-plate 107 of braking or brake off.Umbrella gear 3 places on the eccentric shaft 2, each other the adjustment piece T1 by being provided with the gap with adjust groove T2(and be equivalent to key and keyway) cooperate the coaxial line rotation that realizes both.Bevel gear 4 and umbrella gear 3 engagements, bevel gear 4 is in transmission connection by overrunning clutch 6 and imports gear 5a, input gear 5a be gear transmission unit 5 input ends the input gear, output gear 5c in the gear transmission unit gear unit 5 spiral pushing unit 7 that is in transmission connection, this spiral pushing unit 7 push-plate 107 on the caliper that is in transmission connection makes brake pad 106 on it to pressing close to or moving away from brake disc 104 directions.
It is the axis body 2a that is provided with two sections coaxial lines that above-mentioned eccentric shaft 2 more preferably designs, and eccentric disc 2b is located between this two axis body 2a, and referring to Fig. 3,4, eccentric shaft 2 is bearing on the caliper 105 by the bearing 9 that is connected on two axis bodies.One more preferably scheme as shown in Figure 1, an axis body 2a is bearing on the upper end cap 108 that is connected on the caliper, an axis body 2a is bearing on the caliper.Further bearing 9 adopts needle bearings, simultaneously eccentric disc 2b also by needle roller bearing support in the 1a of the eccentric disc hole of correspondence (referring to Figure 14).The eccentric disc 2b of eccentric shaft is provided with the arc surface 2c for umbrella gear 3 radial locations, is provided with first at the end face 2d perpendicular to this arc surface 2c and adjusts piece T1, and this adjustment piece is the rectangular block that protrudes from this end face 2d.
The umbrella gear 3 that is arranged on the eccentric shaft mainly is made up of fastener rings 3a and conial tooth part 3b, sees also Fig. 5.Fastener rings be basic ring, inner ring surface be provided with the inner arc surface 3c corresponding with the arc surface 2c of eccentric disc and with first adjust that piece T1 matches first adjust groove T2, first to adjust groove T2 be the rectangular recess that is recessed in inner arc surface 3c for this.Conial tooth part 3b is provided with some awl teeth, and this awl tooth distribution circular arc α is not more than 90 °, and conial tooth part 3b is arranged on fastener rings outer rim one side.
The rotation of umbrella gear 3 is given gear transmission unit 5 by bevel gear 4 transmissions that are engaged with.Bevel gear 4 is a partial gear (give figure), only is provided with the operative gear corresponding with umbrella gear 3.
The comparatively preferred scheme of gear transmission unit 5 comprises input gear 5a, output gear 5c and excessive gear 5b, carries out engagement driving by an excessive gear 5b between input gear 5a and the output gear 5c.Certainly, gear transmission unit is not limited to above-mentioned scheme, can between input gear 5a and output gear 5c a plurality of excessive gear 5b be set according to the structure needs.Bevel gear 4 goes up the overrunning clutch 6 that connects by rotating shaft 1a and is transferred to input gear 5a.Rotating shaft 1a one end is fixed on the pressure seat, and this overrunning clutch 6 has adopted a unilateral bearing.The rotation of gear transmission unit 5 output relies on output gear 5c, this output gear 5 spiral pushing unit 7 that is in transmission connection.
Each gear in the gear transmission unit 5 is arranged on the gear stand 5d, sees also Figure 12, Figure 13, and each gear of gear transmission unit 5 is engagement driving in the space between the flat 5d1 of two dunnages.This gear stand 5d is arranged on a side of pressure seat 1, and it mainly is made up of two dunnage 5d1 and some rivet 5d2.The parallel placement of two dunnage 5d1 is spaced from each other certain distance and is riveted by rivet 5d2.Between two dunnages and corresponding to the riveted joint of transition gear position rotating shaft 5d3 is arranged, transition gear 5b is rotatably connected in this rotating shaft.Two dunnage 5d1 are respectively equipped with the first structure hole 5d11 that allows this input gear pass through corresponding to input gear position place; Be respectively equipped be used to the attachment hole 5d13 that makes this output gear radial location and the second structure hole 5d12 that allows this output gear pass through on two dunnages and corresponding to output gear 5c position, output gear 5c one end is rotationally connected with the attachment hole 5d13 on the side dunnage, carry out radial location by this hole, the second structure hole 5d12 and spiral pushing unit 7 on the opposite side dunnage that an end passes through are in transmission connection.
Spiral pushing unit 7 comprises adjusts cover 7a and screw rod 7b, referring to Figure 14, adjusts cover 7a and is rotatably connected among the corresponding aperture 1b of pressure seat 1, and by flange edge 7a1 and the jump ring 7c of an end it is axially located in the 1b of hole.Adjust cover 7a center and be provided with screw, screw rod 7b is screwed in this screw.Output gear 5c one end extend into by the second structure hole 5d12 in the hole of adjusting cover 7a one end and with this hole drive fit, to reach the purpose of rotating with output gear 5 coaxial lines.Screw rod 7b one end is connected with push-plate 106 on the caliper 105.When output gear 5c drove adjustment cover 7a rotation, screw rod 7b drove push-plate and axially moves.
Above-mentioned spiral pushing unit 7 also can arrange like this: will adjust cover 7a and be slidingly connected in the pressure seat corresponding aperture, the same cover 7a center of adjusting is provided with screw, and screw rod 7b is screwed in this screw.Screw rod 7b one end is connected with the end of output gear 5c by the second structure hole 5d12, realizes that coaxial line rotates.Adjusting cover one end is connected with push-plate 106 on the caliper 105.When output gear 5c drives screw rod 7b rotation, adjust cover 7a drive push-plate and axially move.
The spiral pushing unit 7 of realizing above-mentioned push-plate motion is arranged in the pressure seat 1, the center of pressure seat 1 is provided with eccentric disc hole 1a, be provided with the adjustment trepanning 1b vertical with the eccentric disc hole in these symmetry both sides, eccentric disc hole, this adjustment trepanning 1b can be unthreaded hole or the dowel hole that is provided with keyway.It is a unthreaded hole that present embodiment is adjusted trepanning 1b, and referring to Figure 13, eccentric disc is supported among the 1a of eccentric disc hole by bearing; Adjust rotating being matched with of cover 7a and adjust among the trepanning 1b, and limit axial position by flange edge 7a1 and jump ring 7c, the motion that only in adjusting trepanning 1b, rotates, thus guarantee that screw rod 7b axially moves.Be designed to dowel hole if will adjust trepanning 1b, adjust cover 7a and axially move in adjusting trepanning 1b, can not rotate, when screw rod 7b rotated with output gear 5c, the adjustment cover 7a that spins with screw rod 7b screw thread axially moved.
Break of the present invention is when braking, arm rotation 103 is adjusted in the push rod 108 overhanging promotions of brake chamber, the axis body 2a that drives eccentric shaft 2 rotates in the needle bearing 9 of braking clamp body 105 and upper end cap, because eccentric disc 2b center and axis body 2a have throw of eccentric, at eccentric shaft 2 when the axis of axis body 2a rotates, eccentric disc 2b drives the pressure seat assembly and does roughly moving axially of M direction as shown in Figure 1, and it is in axial direction mobile to drive push-plate 107 by adjustment screw rod 7b or adjustment cover 7a.In this process, the pressure P 1(of air chamber sees Fig. 2) change into thrust P2(and see Fig. 1 by adjustment arm 103, eccentric shaft 2), pressure seat assembly, adjustment screw rod, push-plate promote brake pad and are pressed on the brake disc under the effect of thrust P2, produce a reaction force P3(and see Fig. 2).Because braking clamp body 105 is to be slidingly connected in brake holder 100 corresponding apertures by guide pin bushing 101, and guide pin bushing 101 can be moved axially along this hole.Therefore under the effect of this reaction force P3, the brake pad 106 that braking clamp body 105 drives opposite side moves to the direction of pressing close to brake disc 104, is pressed on the brake disc, and the brake disc 104 of rotation is under the pressure effect of the brake pad 106 of both sides, stop operating, thereby reach braking effect.
Break of the present invention is when brake off, and brake chamber push rod return takes to and adjusts arm 103, eccentric shaft 2 is got back to original position, the pressure of brake disc both sides disappears, brake pad 106 is thrown off with brake disc 104 under brake disc 104 action of centrifugal force that rotation forms at a high speed, and braking is removed.
Break of the present invention need carry out the gap adjustment for the gap that guarantees 104 of brake pad 106 and brake discs remains unchanged, to guarantee suitable brake clearance δ.During each the braking, eccentric shaft 2 turns an angle, and makes brake pad 106 move the δ distance, is pressed on the brake disc 104.When eccentric shaft 2 is done the several angle rotation, because the adjustment groove T2 of the adjustment piece T1 on the eccentric shaft 2 and umbrella gear 3 has certain interval μ, and gap μ and brake clearance δ are suitable, when brake clearance is the brake clearance δ that sets, adjusting piece T1 only rotates in adjusting groove T2, can not promote to adjust groove T2 and rotate, so umbrella gear 3 does not rotate.When brake pad 106 during because of the brake clearance increase of wearing and tearing and 104 of brake discs, the angle that eccentric shaft 2 rotates increases, the rotation angle of adjusting piece T1 increases thereupon, adjustment piece T1 will promote to adjust groove T2 and together rotate, be that eccentric shaft drive umbrella gear 3 together rotates, umbrella gear 3 engagement driving bevel gears 4, the rotation of bevel gear 4 is by the input gear 5a in its rotating shaft and the overrunning clutch 6 driven gear gear units 5, and by the output gear 5c drving sprial pushing unit 7 in this gear transmission unit 5, the adjustment cover 7a that drives wherein rotates, adjusting screw rod 7b moves axially, the promotion push-plate moves forward, to eliminate the gap that increases owing to wearing and tearing, the distance that the adjustment screw rod advances equals the wear extent of essential compensation.After braking is removed, get back to original position under the effect of adjustment arm 103, eccentric shaft 2 return spring (not shown) in brake chamber, but the backward rotation of bevel gear 4 can not drive input gear 5a by overrunning clutch 6 and rotate, thereby can not drive the push-plate motion, to reach clearance constant.
Claims (16)
1. air-pressure disc brake, comprise brake holder, be arranged on brake disc and the caliper on this brake holder and be arranged on the caliper and be connected with the push-plate of brake pad, it is characterized in that also comprising pressure seat, eccentric shaft, umbrella gear, bevel gear, overrunning clutch, gear transmission unit and spiral pushing unit; Described pressure seat is slidingly connected on described caliper, and described spiral pushing unit is arranged on the pressure seat, and pressure seat is connected with push-plate by the spiral pushing unit; Described eccentric shaft comprise axis body and with the axis body eccentric disc of coaxial line not, eccentric shaft is bearing on the described caliper by axis body, described eccentric disc places the eccentric disc hole of pressure seat correspondence, and when eccentric shaft rotated around the axis of axis body, eccentric disc drove pressure seat and push-plate is done translational motion; Described umbrella gear places on the eccentric shaft and by the adjustment piece that is provided with the gap and the mutual shake-up of adjusting groove and realizes that both coaxial lines rotate; Described bevel gear and umbrella gear engagement, bevel gear is by be in transmission connection input gear in the gear transmission unit of overrunning clutch, output gear in the gear transmission unit transmission described spiral pushing unit that is in transmission connection, rotate with the eccentric shaft coaxial line and during drive bevel gear at umbrella gear, by overrunning clutch, gear transmission unit and spiral pushing unit, the brake pad on the push-plate is moved to pressing close to the brake disc direction.
2. a kind of air-pressure disc brake according to claim 1, it is characterized in that described eccentric shaft is provided with the described axis body of two sections coaxial lines, described eccentric disc is located between this two axis body, and eccentric shaft is bearing on the described caliper by the bearing that is arranged at respectively on two axis bodies.
3. a kind of air-pressure disc brake according to claim 2, the eccentric disc that it is characterized in that described eccentric shaft is provided with the arc surface for described umbrella gear radial location, is provided with first at the end face perpendicular to this arc surface and adjusts piece or second and adjust groove.
4. a kind of air-pressure disc brake according to claim 3 is characterized in that the described first adjustment piece is the rectangular block that protrudes from described end face, and the described second adjustment groove is the rectangle groove that protrudes from described end face.
5. a kind of air-pressure disc brake according to claim 3 is characterized in that described umbrella gear comprises fastener rings and conial tooth part; The inner ring surface of described fastener rings is provided with the inner arc surface corresponding with described arc surface and adjusts the first adjustment groove or the second adjustment piece that groove matches with the above first adjustment piece or second of eccentric shaft; Described conial tooth part is provided with some awl teeth that the distribution circular arc is not more than 90 °, and this conial tooth part is arranged on described fastener rings outer rim one side.
6. a kind of air-pressure disc brake according to claim 5, it is characterized in that described first adjust groove be recessed in described inner arc surface rectangular recess, described second to adjust piece be the rectangular block that protrudes from described inner arc surface.
7. according to claim 5 or 6 described a kind of air-pressure disc brakes, it is characterized in that described umbrella gear is set on the eccentric shaft, and carry out axially locating with the above end face of eccentric shaft, fit into conduct to the location with described inner arc surface and the above arc surface of eccentric shaft; On the described umbrella gear first adjust groove or second adjust piece respectively with eccentric shaft on first adjust piece or second and adjust groove and have cooperatively interacting of gap, the adjustment piece that cooperatively interacts is when adjusting groove and contact, both do rotation in the same way.
8. a kind of air-pressure disc brake according to claim 1 is characterized in that described gear transmission unit comprises input gear, output gear and excessive gear, carries out engagement driving by at least one excessive gear between described input gear and the output gear; Described bevel gear is by the overrunning clutch that connects in the rotating shaft input gear that is in transmission connection; The described output gear described spiral pushing unit that is in transmission connection.
9. according to claim 1 or 8 described a kind of air-pressure disc brakes, it is characterized in that described overrunning clutch is unilateral bearing.
10. a kind of air-pressure disc brake according to claim 9 is characterized in that described pressure seat one side has a gear stand, and each gear of described gear transmission unit rotates and is arranged on this gear stand.
11. a kind of air-pressure disc brake according to claim 10 is characterized in that described gear stand comprises two dunnages and some rivets, the parallel placement of described two dunnages is spaced from each other certain distance and by described rivet; Engagement driving in the space of each gear of described gear transmission unit between two dunnages are flat.
12. a kind of air-pressure disc brake according to claim 11 is characterized in that having rotating shaft, transition gear to be rotatably connected in this rotating shaft between described two dunnages and corresponding to the riveted joint of transition gear position; Be provided with first structure hole that allows this input gear pass through respectively on two dunnages and corresponding to input gear position place; Be respectively equipped be used to the attachment hole that makes this output gear radial location and second structure hole that allows this output gear pass through on two dunnages and corresponding to the output gear position, output gear one end is rotationally connected with the attachment hole on the side dunnage, and second structure hole on the opposite side dunnage that an end passes through and described spiral pushing unit are in transmission connection.
13. a kind of air-pressure disc brake according to claim 1, it is characterized in that described spiral pushing unit comprises adjustment cover and screw rod, described adjustment cover is movably connected on the pressure seat, adjust the cover center and be provided with screw, described screw rod is screwed in this screw, adjusting cover or screw rod is connected with described output gear, the adjustment that is rotatably connected in the screw rod of adjusting cover or is rotatably connected in screw rod is overlapped an end and is connected with push-plate on the described caliper, when output gear drove adjustment cover or screw rod rotation, screw rod or adjustment cover drive push-plate axially moved.
14. a kind of air-pressure disc brake according to claim 13 is characterized in that described pressure seat center is provided with the eccentric disc hole, is provided with the adjustment trepanning vertical with the eccentric disc hole in symmetry both sides, eccentric disc hole; Described eccentric disc is supported in the eccentric disc hole by bearing; Described adjustment is placed on to be adjusted in the trepanning.
15. according to claim 13 or 14 described a kind of air-pressure disc brakes, it is characterized in that described adjustment cover is rotatably connected in the described adjustment trepanning and with output gear is connected, screw rod is screwed in to be adjusted in the corresponding screw of cover, one end is connected with push-plate, when output gear drove the rotation of adjustment cover, screw rod drove push-plate and axially moves.
16. according to claim 13 or 14 described a kind of air-pressure disc brakes, it is characterized in that described adjustment cover is slidingly connected in the described adjustment trepanning, one end is connected with push-plate, screw rod is screwed in to be adjusted in the corresponding screw of cover, one end is connected with output gear, when output gear drives the screw rod rotation, adjust cover drive push-plate and axially move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276734.8A CN103335034B (en) | 2013-07-03 | 2013-07-03 | A kind of air-pressure disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276734.8A CN103335034B (en) | 2013-07-03 | 2013-07-03 | A kind of air-pressure disc brake |
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| Publication Number | Publication Date |
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| CN103335034A true CN103335034A (en) | 2013-10-02 |
| CN103335034B CN103335034B (en) | 2016-06-15 |
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| CN201310276734.8A Active CN103335034B (en) | 2013-07-03 | 2013-07-03 | A kind of air-pressure disc brake |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377539A (en) * | 2020-10-13 | 2021-02-19 | 东风汽车集团有限公司 | Brake device and vehicle |
| CN113790226A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on worm gear and worm and unilateral eccentric wheel |
| CN113790230A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Bidirectional reinforcement type electromechanical brake actuator based on linear motor and bilateral eccentric wheels |
| CN113790227A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on unilateral eccentric wheel |
| CN113790229A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on linear motor and unilateral eccentric wheel |
| CN113790228A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Bidirectional reinforcement type electromechanical brake actuator based on bilateral eccentric wheels |
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| CN112377539A (en) * | 2020-10-13 | 2021-02-19 | 东风汽车集团有限公司 | Brake device and vehicle |
| CN112377539B (en) * | 2020-10-13 | 2021-11-30 | 东风汽车集团有限公司 | Brake device and vehicle |
| CN113790226A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on worm gear and worm and unilateral eccentric wheel |
| CN113790230A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Bidirectional reinforcement type electromechanical brake actuator based on linear motor and bilateral eccentric wheels |
| CN113790227A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on unilateral eccentric wheel |
| CN113790229A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Two-stage reinforcement type electromechanical brake actuator based on linear motor and unilateral eccentric wheel |
| CN113790228A (en) * | 2021-09-13 | 2021-12-14 | 山东理工大学 | Bidirectional reinforcement type electromechanical brake actuator based on bilateral eccentric wheels |
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