CN101581344B - Disk type brake caliper - Google Patents
Disk type brake caliper Download PDFInfo
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- CN101581344B CN101581344B CN2008100375609A CN200810037560A CN101581344B CN 101581344 B CN101581344 B CN 101581344B CN 2008100375609 A CN2008100375609 A CN 2008100375609A CN 200810037560 A CN200810037560 A CN 200810037560A CN 101581344 B CN101581344 B CN 101581344B
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- backboard
- friction plate
- disc
- type braking
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Abstract
The invention relates to a disk type brake caliper (1), wherein guide pins (10, 11) are arranged in guide pin holes (5-8) of a bracket, guide pin supporting friction sheets (44, 45) and a floating casing (22) are connected with a friction sheet backboard through friction sheet springs. The brake caliper has fewer parts, less machining required by the production, low noise, and convenient installation.
Description
Technical field
The present invention relates to a kind of automobile disc type braking tong, especially a kind of unsteady disc type braking tong with the fritter friction plate.
Background technique
Nowadays, the brake calipers that uses in most of automobiles, friction plate are contained in the parallel slot of support and housing usually, and by its support and guiding.Guiding groove on support and the housing needs to obtain by machining, uses broaching machine to form by the broaching tool broaching usually.Broaching machine and cutter thereof are all very expensive, and the adjustment of broaching tool is also very complicated, need to put in order the broaching tool gradient according to institute's processing support or housing guiding groove size by contrast, guarantee suitable broaching surplus.According to the difference of friction plate backboard guide portion bit width and length, need the different broaching tool of configuration.
In brake calipers structure commonly used, be connected by guide finger between housing and the support, for the ease of brake calipers is fixed on the knuckle, mounting hole is arranged on the support.Housing is supported and guiding by guide finger usually.If guide finger is fixed on the support by screw thread, housing then leads on guide finger by its pilot hole.If guide finger is by on the pin-and-hole that is bolted to housing, housing then leads in the pilot hole of support by guide finger.Unfavorable to leading in order to prevent humidity or dirt, guide finger and guide pin hole are sealed usually.
In 1070 No. 048 patent disclosures of German DE, brake calipers movably friction plate is symmetrically located at the both sides of brake disc.Guide finger is crossed the brake disc external frame by outside friction disc backboard pilot hole, and by support lining and interior friction plate backboard pilot hole, the end of final guide finger links to each other with torque arm again.The support lining has extended to the guiding length of guide finger.Interior friction plate links to each other with piston/cylinder, and piston links to each other with torque arm.The hydraulic cylinder piston promotes torque arm and guide finger makes outside friction disc press to brake disc, simultaneously, tries hard to recommend interior friction plate from the effect of piston/cylinder bottom, and makes it press to brake disc, thereby produce braking force.In braking process, the friction plate backboard can produce bending deflection, and this distortion need be controlled in certain scope.Therefore, in this structure, then need with thicker steel plate, five millimeters thick steel plates commonly used are just no longer suitable.
Another structure disc type braking tong is disclosed in 1 006 No. 735 D.B.P. texts of DE.In this design, friction plate backboard in two ditch shape rocking arms are pushed down links to each other with two hinge-rods on interior friction plate backboard.These two ditch shape rocking arms are under the effect of piston/cylinder thrust, and friction plate is directly pressed to brake disc in making, and outside friction disc is pressed to brake disc under the tension of hinge-rod.It is to have reduced that friction plate backboard in 1 070 No. 048 patents of the distortion of the friction plate backboard in this structure and DE is compared.
The disc type braking tong of having mentioned in the text of 1 505 No. 491 D.B.P.s of DE and No. 3 298 468, US and 3406 No. 792 related U.S. patent of US, brake calipers does not have support, is directly installed on the knuckle by guide finger.The axle center of knuckle is consistent with disc centres.Guide finger is through the pilot hole of inside and outside friction plate backboard, is installed as Spielpassung between them.Housing is divided into two-part-housing bridge portion and piston/cylinder, links into an integrated entity by bolt between them.The tack pin passes the pin-and-hole of housing and inside and outside friction plate.According to the announcement of No. the 3 406 792, U. S. Patent, the housing piston cylinder side of tack pin and the pin-and-hole of claw to be installed to be embedded with lining, the tack pin ends is by the elastic circlip stop bit.
Enjoy the disc type braking tong of mentioning among No. 85 19 567, the sample design DE of petty patent and the related U.S. patent US 4,944 371 in Germany, housing is divided into two-part, cylinder body side pin-and-hole is a through hole, and claw portion pin-and-hole is a tapped hole, and they fuse by the threaded guide pin of end.Inside and outside friction plate backboard both sides projection is hooked guide pin.Inside and outside friction plate backboard central boss is placed in the peep hole of housing bridge portion, and a pilot hole is arranged on this boss, and friction plate is located by hobnail by this pilot hole and led.The end support of friction plate springs is located on the spring guide track of housing bridge portion, and springs pulls to housing bridge portion with hobnail and makes friction plate backboard both sides be affixed to guide pin.
In addition, the disc type braking tong of mentioning in the text of 359 No. 548 European patents of EP, the circular-arc end of friction plate backboard both sides are packed in the circular arc shaped guide slots in the support, and friction plate supports and guiding by this groove.There are two cylindrical bosses to link to each other on the friction plate backboard with the groove of housing claw, and support housing.Riveted joint spring on the friction plate backboard joins friction plate and housing together.
Summary of the invention
The objective of the invention is to design a kind of like this disc type braking tong: the parts that it is formed are few, produce the few and easy installation of required machining.
In order to realize described purpose, disc type braking tong of the present invention, be characterized in, comprise housing, piston, support, interior friction plate, piston supporting, housing bridge portion supporting, outside friction disc, housing claw supporting and two guide fingers, wherein, housing has cylinder body, housing bridge portion and housing claw, and housing bridge portion connects cylinder body and housing claw; Piston cooperates with cylinder body; Support has master, from side, inboard and the outside, master is with relative from side, and is inboard relative with the outside, support also has the two stands arm, wherein a support arm is positioned at the master of support, another support arm be positioned at support from side, each support arm is provided with inboard guide pin hole and outside guide pin hole; Interior friction plate comprises interior friction plate backboard, is respectively arranged with first guide pin hole and is provided with friction material in interior friction plate backboard front at interior friction plate backboard two ends; The back side and the piston of friction plate backboard in the piston supporting connects respectively; Housing bridge portion supporting connects housing bridge portion and interior friction plate backboard, so that interior friction plate backboard and housing bridge portion radially are close to; Outside friction disc comprises the outside friction disc backboard, is respectively arranged with second guide pin hole at outside friction disc backboard two ends, and at the positive friction material that connects of outside friction disc backboard; Housing claw supporting connects housing claw and outside friction disc backboard, so that outside friction disc backboard and housing claw axially are close to; Each root guide finger in two guide fingers is inserted in inboard guide pin hole, first guide pin hole, second guide pin hole and the outside guide pin hole of coaxial line; The friction material in the front of interior friction plate backboard is relative with the friction material in the front of outside friction disc backboard, in when braking and brake disc friction-produced braking moment.
Described disc type braking tong, its further characteristics are the boss in the piston supporting is arranged on the friction plate backboard.
Described disc type braking tong, its further characteristics are, housing bridge portion supporting is interior friction plate backboard, and interior friction plate spring is connected with interior friction plate backboard, between the housing bridge portion of interior friction plate backboard and housing, produce radial force, so that interior friction plate backboard and housing bridge portion radially are close to.
Described disc type braking tong, its further characteristics are, housing claw supporting comprises boss and the outside friction disc spring that is arranged on the outside friction disc backboard back side, be formed with bearing hole on the housing claw, boss inserts bearing hole, the outside friction disc spring is connected with the outside friction disc backboard, and produces axial force between the housing claw of outside friction disc backboard and housing, so that outside friction disc backboard and housing claw axially are close to.
Described disc type braking tong, its further characteristics are also to comprise vibration-damping sheet, the back side of friction plate backboard and outside friction disc backboard in being separately positioned on.
Owing to adopt the aforementioned techniques scheme, the present invention has such advantage: friction plate is pressed to brake disc along guide finger in making under the action of hydraulic force of the piston in the disc type braking tong in cylinder body, simultaneously, housing cylinder body top also makes outside friction disc press to brake disc along guide finger from opposite side under action of hydraulic force, thereby produces braking force.Disc type braking tong is supported by support, specifically, in, outside friction disc is supported by support by guide finger, housing bridge portion realizes radial location and radial support by housing bridge portion supporting, the housing claw is realized radial location and radial support by housing claw supporting, support only needs a spot of cutting, also promptly bore inboard guide pin hole and the outside guide pin hole that guide finger is installed, installation and processing face and mounting hole get final product, compared to existing disk type braker, the parts that disk type braker of the present invention is formed are few, it is few to produce required machining, and installs easily.
Explain described purpose of the present invention, technological scheme and advantage below in conjunction with description of drawings and embodiment.
Description of drawings
Fig. 1: disc type braking tong left view and first kind of slewing journal structure.
The left side view of the disc type braking tong of Fig. 2: Fig. 1 and first kind of slewing journal structure.
Fig. 3: the plan view of disc type braking tong and second kind of slewing journal structure.
The right side view of the disc type braking tong of Fig. 4: Fig. 3 and second kind of slewing journal structure.
Fig. 5: the plan view of disc type braking tong.
Fig. 6: a tangential sectional view of disc type braking tong.
Fig. 7: an axial sectional view of disc type braking tong.
Fig. 8: the right elevation of disc type braking tong, section is by the guide pin hole of support.
Fig. 9: the tangential sectional view of housing claw and outside friction disc, the cross section is by outside friction disc location hole of the spring center.
Figure 10: first kind of supporting structure view.
Figure 11: bracket side view.
Figure 12: support guide pin hole position and brake disc partial sectional view.
Figure 13: second kind of supporting structure.
Figure 14: the third supporting structure.
Figure 15: the front elevation of housing.
Figure 16: the partial sectional view of outside friction disc and housing claw, the cross section is by housing claw supported hole center.
Figure 17: outside friction disc spring.
Figure 18: the plan view of outside friction disc spring.
Figure 19: the front elevation of second kind of shell construction.
Figure 20: the tangential sectional view of second kind of shell construction bridge portion.
Figure 21: the guide surface of the tangential sectional view of the disc type braking tong of second kind of structure-interior friction plate backboard on housing bridge portion internal surface.
Figure 22: second kind of shell construction bridge portion internal surface worm's eye view, the guiding area of interior friction plate backboard on housing bridge portion internal surface.
Figure 23: the rear view of disc type braking tong.
Figure 24: the front elevation of disc type braking tong.
Figure 25: the housing bridge portion of second kind of structure and the tangential sectional view of support, the interior friction plate view of second kind of structure.
Figure 26: the housing rear view of second kind of structure disc type braking tong.
Figure 27: the tangential sectional view of housing bridge portion and support.
Figure 28: friction plate structure in first kind.
Figure 29: friction plate structure in second kind.
Figure 30: outside friction disc.
Figure 31: first kind of guide finger structure.
Figure 32: second kind of guide finger structure.
Figure 33: friction plate spring structure in first kind.
Figure 34: interior friction plate spring longitudinal section.
Figure 35: friction plate spring structure in second kind.
Figure 36: friction plate spring structure in the third.
Figure 37: friction plate spring structure in the 4th kind.
Figure 38: friction plate spring structure in the 5th kind.
Figure 39: friction plate back board structure in second kind.
Figure 40: the guide pin hole of friction plate backboard.
Figure 41: friction plate backboard and vibration-damping sheet structure in first kind.
Figure 42: the guide pin hole zone of vibration-damping sheet.
Figure 43: the side view in the guide pin hole zone of vibration-damping sheet.
Figure 44: the guide pin hole of friction plate backboard and the pawl of vibration-damping sheet.
Figure 45: the part that the pawl of vibration-damping sheet in guide pin hole exceeds a little.
Figure 46: the guide pin hole of another kind of friction plate backboard and the pawl of vibration-damping sheet.
Figure 47: another kind of vibration-damping sheet in guide pin hole the part that exceeds a little of pawl.
Figure 48: the side view of interior friction plate.
Figure 49: the projection on first kind of friction plate backboard external diameter.
Figure 50: the projection on second kind of friction plate backboard external diameter.
Figure 51: the projection on the third friction plate backboard external diameter.
Figure 52: the projection on the 4th kind of friction plate backboard external diameter.
Figure 53: the active force of interior friction plate spring, the schematic representation of reaction force and barycenter.
Embodiment
Fig. 1 represents that disc type braking tong 1 is installed in the basic structure on the knuckle 102.This figure as can be seen, disc type braking tong 1 is fixed on support 2 on the knuckle 102 by two bolts.Be defined as plan view by Fig. 7 cylinder body 40, then disc type braking tong 1 is a left view.Center line shown in Fig. 1 is the center line of brake disc 43 shown in Figure 12 and Figure 53 too.The running shaft of brake disc 43 vertically passes the intersection point of this center line.
As shown in Figure 1, disc type braking tong 1 is connected on the knuckle 102 by support 2, and this is a basic structure, also is first kind of structure example.Suppose that direction of advance is a clockwise direction, the left side of disc type braking tong 1 just becomes master among Fig. 1 so, and the right side then becomes from side.
Following provisions: axially for through the axis of brake disc 43 or with the direction of this parallel axes, radially be direction with the axis normal of brake disc 43.
In Fig. 3, disc type braking tong 1 is installed on the knuckle 102.Support 2 is an integral body with knuckle 102, and support 2 becomes the some of knuckle 102.This linkage structure is second kind of structure example.
Figure 2 shows that disc type braking tong 1, relative Fig. 1 of left view of the knuckle 102 of support 2 and first kind of structure example.
Figure 4 shows that disc type braking tong 1, with relative Fig. 3 of right elevation of the knuckle 102 of the support 2 of knuckle 102 one and second kind of structure.
Below describe, but with regard to its meaning, it also can be applied to second kind of structure example about first kind of structure example.
Figure 5 shows that the plan view of disc type braking tong 1, Figure 6 shows that tangential sectional plane, Figure 7 shows that axial sectional plane by disc type braking tong 1.
Disc type braking tong 1 is made of following critical piece: housing 22, piston 21, support 2 and interior friction plate 44, outside friction disc 45.
Act on the hydraulic pressure on the piston, equally also act on the bottom of cylinder body 40.This power makes cylinder body 40 move to the direction opposite with piston 21 displacements.
Along with interior friction plate 44, the wearing and tearing of outside friction disc 45 friction materials, they are changed with respect to the position of support 2.But the position of friction plate 44, the relative support 2 of outside friction disc 45 its symmetry center of friction material uniform wear does not change in inside and outside.
On the contrary, interior friction plate 44 is very obvious with respect to the change in location of housing 22, and outside friction disc 45 friction materials when wearing and tearing, housing 22 is moved to the left along wear direction as Fig. 6.Simultaneously, interior friction plate 44 also moves right along wear direction as Fig. 6.Therefore, the displacement of interior friction plate 44 relative housings 22 is twices of relative support 2.Can know and understand and observe this point, go out as shown in Figure 5 interior friction plate spring guide surface 41 and housing outer surface guiding size 46, and the axial dimension of guide surface as shown in figure 22 50 530 minutes is important for correct calculation.Below will do further to inquire into research to this.
As shown in figure 20, the join domain 39 in housing bridge portion 26 with cylinder body 40, the internal surface 49 of housing bridge portion 26 has guide surface 50, and the guide surface center 51 of guide surface 50 overlaps with the center 52 of piston/cylinder 40 or is approaching.
As Figure 10,11,12, shown in 13,14, support 2 has two mounting holes 38, links to each other by rack beam 35 between these two mounting holes 38.Support mounting hole 38 is connected with knuckle 102 by bolt, as shown in Figure 1.
In second kind of structure, when support 2 and knuckle 102 one, as shown in Figure 4, just do not need to connect with bolt.
Extend two support arms 3,4 from mounting hole 38.Wherein, the support arm 3 on the left side among Figure 10 is to call master support arm 3 in the following text; The support arm 4 on the right among Figure 10 is to call in the following text from side support arm 4.
Among Figure 11, the attachment face 9 on the support 2 is called the inboard of support 2, and the another side relative with this face is called the outside.
Two support arms 3,4 are all across brake disc 43.
There is inboard guide pin hole 5 and inboard guide pin hole 7 from side support arm 4 of a master support arm 3 support 2 inboards.
There is outside guide pin hole 6 and outside guide pin hole 8 from side support arm 4 of a master support arm 3 in support 2 outsides.
Figure 12 has described the partial sectional view from side support arm 4 of brake disc 43 opposite sides.Support arm be 34 from side 7,8 guide pin hole center lines.At the circular arc 31 from side support arm 4 are one section circular arcs of cylndrical surface 32, and the center line 33 of cylndrical surface 32 is coaxial with support arm guide pin hole center line 34.Figure 28,29,30 and shown in Figure 25: there is certain clearance in friction plate backboard 12,13 left sides of supporting from side guide finger 11 15,16 to this circular arc 31.Also have circular arc 31 on master support arm 3, the friction plate backboard 14,17 that guide finger 10 supports also has certain clearance to this circular arc 31.
2 a spot of cutting of needs of support: bore pilot hole, installation and processing face and mounting hole that guide finger 10,11 is installed and get final product.
As shown in figure 13, for avoiding interfering shown in Figure 23ly with cylinder body 40, support 2 has an arc groove 37 on its rack beam 35, be black skin, does not need to obtain by machining.
Shown in Figure 13,14: arc groove or flat-bottom slot 37 reverse side at support 2 crossbeams 35 have a convex arc surface 36, increase the intensity of rack beam 35.
According to the third structure of as shown in figure 14 support 2, the guiding groove 37 on the rack beam is a plane, and this plane is the supporting surface of the guide ledges 48 on the housing cylinder body 40, as Fig. 7, shown in 19,20.
Figure 21, shown in Figure 23 is first kind of structure of disc type braking tong 1, two projections that separate 69 on the interior friction plate backboard 12, as shown in figure 29, support housing 22 bridge portions 26 are under the effect of interior friction plate spring 25, be close to guide surface 27 in the housing bridge portion, as shown in figure 22.
Figure 25, shown in Figure 26 is second kind of structure of disc type braking tong 1, guiding groove 37 on the support 2 is by housing guide ledges 48 support housings 22 cylinder body sides 47, as Figure 14, shown in Figure 20, under the effect of interior friction plate spring 25, by guide finger 10,11 transmission makes housing guide ledges 48 be close to guiding groove 37 on the support 2.
Figure 28,29,30 have described interior friction plate 44, outside friction disc 45 structures.Wherein, Figure 28 describes interior friction plate 44 structures of first kind of structure, and Figure 29 describes interior friction plate 44 structures of second kind of structure, and Figure 30 describes outside friction disc 45 structures.
Interior friction plate backboard 12, three kinds of structures of outside friction disc backboard 13 all have pilot hole 14,15,16,17, friction material 18 and vibration-damping sheet 29.
In first kind of structure of the friction plate backboard 12 of interior friction plate 44, a projection 60 on the external diameter is arranged, friction plate spring 25 in being used to connect at the center of friction plate backboard 12.
In second kind of structure of the friction plate backboard 12 of interior friction plate 44, a projection 60 on the external diameter is arranged also at the center of friction plate backboard 12, it is used to connect interior friction plate spring 25 too.In addition, also have on the friction plate backboard 12 with this external diameter on two other projections that separates 69 of projection 60 symmetries, they are used for support housing 22.
Shown in Figure 31 is the guide finger 10,11 of first kind of structure, and shown in Figure 32 is the guide finger 10,11 of second kind of structure.
Shown in Figure 48 is the side view of interior friction plate 44.Figure 49,50,51,52 differences of having described the projection 60 on the external diameter are made situation.Figure 33 to 38 has described the difference of interior friction plate spring 25 and has made situation.
Figure 48,49 are depicted as the projection 60 on the external diameter of first kind of structure, and its axial thickness 61 is less than the thickness 62 of friction plate backboard 12.Projection 60 on the external diameter of this structure is positioned at the centre of friction plate backboard 12.Projection 60 peripheral chamferings on the external diameter.Position-arresting groove 68 on the projection 60 on the external diameter is connected to interior friction plate spring 25 on the interior friction plate backboard 12.The shape of the position-arresting groove 68 on the projection on the external diameter shown in Figure 49 is rectangulars, it also can be other shape, the radially outward edge of the position-arresting groove 68 of the projection on the external diameter of second kind of structure as shown in figure 50 also as shown in figure 49 first kind of structure is the same, through tangent direction.Require the punching press cross section of position-arresting groove 68 of the projection on the external diameter big as far as possible in the mill, so in second kind of structure as shown in figure 50, the inner radial border circular areas of position-arresting groove 68 provides bigger cross-section area for punching press.
Figure 51 is depicted as the projection 60 on the third external diameter.Its topside 63 has two barbs 64.
Figure 52 is depicted as the 4th kind of projection 60 on the external diameter.This projection 60 has a barb 64 and a position-arresting groove 65 at its topside 63.
Figure 33 to 38 is depicted as the supporting spring of projection 60 on five kinds of external diameters of backboard.Interior friction plate spring 25 has a rectangular bottom surface 84.The sidewall 83 of interior friction plate spring is connected with bottom surface 84, sidewall 83 and 91 one-tenth 70 degree angle, 84 surfaces, bottom surface, and interior friction plate spring 25 is a free state.Interior friction plate spring detent 82 links to each other with this sidewall 83.Interior friction plate spring detent 82 almost is a rectangle, but internally the bottom surface 84 of friction plate spring is narrower mutually.Sidewall 83 is from the bottom surface 84 approaching narrower interior friction plate spring detents 82 of broad.Interior friction plate spring detent 82 tilts to bottom surface 91 a little.Interior friction plate spring detent 82 is at its close tail end arc transition, terminal and 91 one-tenth miter angles of bottom surface.
The bottom surface 84 of interior friction plate spring has a place blank 85, is rectangle.The longitudinal surface 86 of this rectangle blank 85 is parallel with bottom surface 84.The zone line of the longitudinal surface 86 blank 85 has projection 88 to protrude in the middle of blank 85.Distance between the end face 92 of the projection that the bottom surface is blank is less than the thickness 61 of the projection on the external diameter of interior friction plate backboard 12 60.
Shown in Figure 35 is the interior friction plate spring 25 of second kind of structure.The blank projection 88 in bottom surface raises up.Here, the end face 92 of projection is at the thickness 61 of the distance between the zone line less than the projection on the external diameter of interior friction plate backboard 12 60.
Shown in Figure 36 is the interior friction plate spring 25 of the third structure.The blank projection 88 in bottom surface still raises up.Here, the end face 92 of projection in the distance between the zone line too still less than the thickness 61 of the projection on the external diameter of interior friction plate backboard 12 60.And the subsequent corrosion of the blank projection 88 in bottom surface is greater than the subsequent corrosion in second kind of structure shown in Figure 35.In addition, the end face 92 of this projection 88 links to each other with sidewall 93.Parallel to each other between the sidewall 93, and vertical with blank 85 longitudinal surface 86 on the bottom surface.
Figure 49,50 are depicted as above-mentioned three kinds of different structure springs and projection 60 on the backboard external diameter that designs.25 pressurizations of interior friction plate spring are installed on the projection 60 on the external diameter.Projection 60 peripheral chamferings on the external diameter easily enter in blank 85 on interior friction plate spring 25 bottom surfaces 84 it.In compressing during friction plate spring 25, projection 88 bendings that the bottom surface is blank, blank projection 88 slips over the topside 63 of the projection 60 on the external diameter up to the bottom surface, till the position-arresting groove 68 on the projection on the external diameter.
The width of the position-arresting groove 68 on the projection on the distance of parallel side 93 and the external diameter cooperates, and position-arresting groove 68 is located interior friction plate spring 25 in tangent direction.Equally, as shown in figure 35, spring 25 also can cooperate with position-arresting groove 68 width by the curved surface of the blank projection 88 in bottom surface and locate in second kind of structure.
Shown in Figure 37 is the interior friction plate spring 25 of the 4th kind of structure.The projection 95 that there are two tongue shapes at blank 85 places of interior friction plate spring 25 on bottom surface 84 extends to blank center line 90 from blank 85 topside 94.Should in projection 60 on the external diameter of friction plate spring 25 and the third structure shown in Figure 51 cooperate.In this spring process was installed, the inclined-plane of the barb 64 on the projection of the projection 95 of tongue shape on the external diameter slides, and was crooked slightly simultaneously, below they are assembled to barb 64 till.
Shown in Figure 38 is the interior friction plate spring 25 of the 5th kind of structure.The projection 95 that blank 85 places of interior friction plate spring 25 on bottom surface 84 have only a tongue shape extends to blank center line 90 from a topside 94 of blank 85.Should in projection 60 on the external diameter of friction plate spring 25 and shown in Figure 52 the 4th time manufacturing cooperate.In these spring 25 processes were installed, the blank topside 94 relative with tongue shape projection 95 was loaded in the position-arresting groove 65 on the projection 60 on the external diameter.Blank topside 94 and these position-arresting groove 65 common formation stop bits.Then, masterpiece is used for comprising on the spring 25 that side of the projection 95 of tongue shape.Simultaneously, the inclined-plane of the barb 64 on the projection of the projection 95 of tongue shape on the external diameter slides, below it falls barb 64 till.Because the stop bit place of the blank topside 94 on the position-arresting groove 65 on importing place of power and the projection that is positioned on the external diameter separately, importing place of power together constitutes a lever arm with the stop bit place.Compare to the lever arm of the distance formation at stop bit place to the blank topside 94 on the position-arresting groove 65 with importing place by reaction force, above-mentioned lever arm is its two to three times.The importing of reaction force is on the inclined-plane of barb 64 of the projection on the external diameter, at projection 95 ends of the tongue shape that becomes blank center line 90.
Therefore, friction plate spring 25 in an obvious less power just can drive, this installs for on-mechanical is highly significant.
In Figure 47, further described interior friction plate backboard 12 at Figure 39, each thin portion of outside friction disc backboard 13 and vibration-damping sheet 29.What Figure 39 and 41 described is interior friction plate backboard 12, below is applicable to outside friction disc backboard 13 too.Interior friction plate backboard 12, outside friction disc backboard 13 has guide pin hole 14,15,16,17.Interior friction plate backboard 12, outside friction disc backboard 13 is installed on the guide finger 10,11 of support 2 by guide pin hole 14,15,16,17, and is connected with support 2 thus, as shown in Figure 8.
Each guide pin hole 14,15,16,17 all has four grooves, and its basic shape is circular arc and backboard guide pin hole contoured surface 74.This contoured surface 74 includes the concave surface 75 of four backboard guide pin hole.The pawl 78 of vibration-damping sheet can be a rectangle, and as Figure 44, shown in 45, but they also can be other shapes, such as a right angle arc transition, as Figure 46, shown in 47.
Shown in Figure 41 to 43, vibration-damping sheet 29 has two ears to cover guide pin hole 14,16, or guide pin hole 15,17, vibration-damping sheet 29 areas are identical with the area of interior friction plate backboard 12 as far as possible, corresponding to the place of guide pin hole 14,16 or guide pin hole 15,17, vibration-damping sheet 29 also has guide pin hole.
Different with above-described conformity, in the vibration-damping sheet 29 positioning hole is arranged, pack into the boss 19 of outside friction disc backboard 13 riveted joint outside friction disc springs 24 or the boss 20 of interior friction plate backboard 12 are shown in Fig. 6,9.In addition, the projection on the external diameter 68,69 can cover without vibration-damping sheet 29.
The pawl 78 of vibration-damping sheet 29 forms from the guide pin hole inwall of vibration-damping sheet 29.These pawls 78 are bent from the surface of vibration-damping sheet 29, and vertical substantially with the surface.
Vibration-damping sheet 29 is bonded to interior friction plate backboard 12, the back side of outside friction disc backboard 13.The pawl 78 of these vibration-damping sheets is filled the concave surface 75 of backboard guide pin hole 14,15,16.
According to interior friction plate backboard 12, the size of the concave surface 75 of outside friction disc backboard 13 guide pin hole 14,15,16,17, the pawl 78 of vibration-damping sheet 29 will exceed the part 79 that backboard guide pin hole contoured surface 74-exceeds a little when being installed in concave surface 75, as Figure 45, shown in 46.
For the deviation that pawl 78 gluings that can keep for a long time to vibration-damping sheet 29 bring, make it not because braking force does not particularly change because of the caused power of braking, the concave surface 75 of backboard guide pin hole is dispersed in around the concentric circle segmental arc 73.And simultaneously, suffered power and backboard 12 on the plane 77 of backboard 12,13,13 symmetry axis 76 parallel and with backboard 12,13 symmetry axis 76 is vertical, on suffered power on the plane 77 of backboard 12,13 acts directly on concentric circle segmental arc 73 in the backboard guide pin hole contoured surface 74.
In brief, radially be not conducted into the concave surface 75 of backboard guide pin hole, but directly import the concentric circle segmental arc 73 of backboard guide pin hole contoured surface 74 with braking force tangent line.
As Figure 30,6,7,8,9,15,16, shown in 19,24,, in 16, two bigger boss, 19 support housing claws are arranged on the backboard 13 of outside friction disc 45 particularly at Fig. 9.Boss 19 is encased in the supported hole 28 of housing 22 claws 23.Outside friction disc backboard 13 contacts with housing claw 23.In addition, outside friction disc backboard 13 has two less boss in addition, is used to rivet the outside friction disc spring.
Figure 17, the outside friction disc spring 24 shown in 18 is made up of a flat seat board 96.The sidewall 97 of outside friction disc spring is connected in this flat seat board 96.Under spring 24 free states, sidewall 97 opens a little, and they become 100 degree angles approximately with flat seat board 96 separately.Sidewall 97 is connected with flat spring part 98.Flat spring part 98 terminates in outside friction disc spring claw 99.Outside friction disc spring 24 has two riveted holes 100 at the intermediate portion of flat seat board 96, is used for spring is fixed on outside friction disc backboard 13.Outside friction disc spring 24 is simple stamping part.
Figure 15, housing 22 claws 23 shown in 16 have blank 55 with opposite side-housing claw supported hole exterior contour 54 places of outside friction disc 45 surface of contact.When outside friction disc 45 was installed, outside friction disc spring 24 was crossed the face 56 of housing claw inboard.The face 56 of housing claw inboard has a guide section 57, guide section 57 slight inclination.During assembling, the sheet spring part 98 of outside friction disc spring 24 pushes away on the lower direction of the guide section 57 of housing claw 23, and sheet spring part 98 slides along the inclined-plane of guide section 57 thus.
In conjunction with the description of front, can understand that the assembly relation of disk type braker of the present invention is roughly: guide finger 10,11 is installed on the support 2 by the guide pin hole of inside and outside friction plate backboard 12,13; Friction plate backboard 12,13 is affixed to housing claw 23 under the elastic force effect, the inboard 56 of the concave station 55 of housing claw 23 is propped up spring section 98 and strained it, is installed in the supported hole 28 of housing claw 23 up to the boss 19 of outside friction disc backboard 13; Interior friction plate backboard 12 is pushed to piston 21, be close to up to it and piston end face 103, and the boss on the interior friction plate backboard 12 supports the piston skirt 104 that is positioned at housing cylinder body side 20; The radially projection 60 of interior friction plate backboard 12 is installed on the bottom surface blank 85 of interior friction plate spring 25; The blank projection 88 in friction plate spring 25 bottom surfaces in the radially projection 60 of interior friction plate backboard 12 is pressed into finally is contained in the position-arresting groove 68 on interior 84 surfaces 91, friction plate spring bottom surface.
In addition, in the foregoing embodiments, radially projection 60 is adjusted according to the thickness 62 of interior friction plate backboard 12 and is arranged, with the distance 105 of 25 active forces 106 of friction plate spring in being provided with to interior friction plate 44 mass center line 67.
Claims (43)
1. a disc type braking tong (1) is characterized in that, comprising:
Housing (22) has cylinder body (40), housing bridge portion (26) and housing claw (23), and housing bridge portion (26) connects cylinder body (40) and housing claw (23);
Piston (21) cooperates with cylinder body (40);
Support (2) has master, from side, inboard and the outside, and master is with relative from side, inboard relative with the outside, support (2) also has two stands arm (3,4), wherein a support arm (3) is positioned at the master of support (2), another support arm (4) be positioned at support (2) from side, each support arm (3; 4) be provided with inboard guide pin hole (5; 7) and outside guide pin hole (6; 8);
Interior friction plate (44), friction plate backboard (12) in comprising is respectively arranged with first guide pin hole (14,16) and is provided with friction material (18) in interior friction plate backboard (12) front at interior friction plate backboard (12) two ends;
Piston supporting (20), the back side and the piston (21) of friction plate backboard (12) in connecting respectively;
Housing bridge portion supporting (25) connects housing bridge portion (26) and interior friction plate backboard (12), so that interior friction plate backboard (12) radially is close to housing bridge portion (26);
Outside friction disc (45) comprises outside friction disc backboard (13), is respectively arranged with second guide pin hole (15,17) at outside friction disc backboard (13) two ends, and at the positive friction material (18) that connects of outside friction disc backboard (13);
Housing claw supporting (19,24) connects housing claw (23) and outside friction disc backboard (13), so that outside friction disc backboard (13) axially is close to housing claw (23);
Two guide fingers (10,11), each root guide finger (10; 11) the inboard guide pin hole (5 of insertion coaxial line; 7), first guide pin hole (14; 16), second guide pin hole (15; 17) and outside guide pin hole (6; 8);
The friction material (18) in the front of interior friction plate backboard (12) is relative with the friction material (18) in the front of outside friction disc backboard (13), is used for and brake disc (43) friction-produced braking force.
2. disc type braking tong as claimed in claim 1 (1) is characterized in that, piston supporting (20) is the boss (20) on the friction plate backboard (12) in being arranged at.
3. disc type braking tong as claimed in claim 1 (1), it is characterized in that, housing bridge portion supporting is an interior friction plate spring (25), interior friction plate spring (25) is connected with interior friction plate backboard (12), between the housing bridge portion (26) of interior friction plate backboard (12) and housing (22), produce radial force, so that interior friction plate backboard (12) radially is close to housing bridge portion (26).
4. disc type braking tong as claimed in claim 1 (1), it is characterized in that, housing claw supporting (19,24) comprise boss (19) and the outside friction disc spring (24) that is arranged on outside friction disc backboard (13) back side, be formed with bearing hole (28) on the housing claw (23), boss (19) inserts bearing hole (28), outside friction disc spring (24) is connected with outside friction disc backboard (13), and produce axial force between the housing claw (23) of outside friction disc backboard (13) and housing (22), so that outside friction disc backboard (13) axially is close to housing claw (23).
5. disc type braking tong as claimed in claim 1 (1) is characterized in that, also comprises noise abatement sheet (29), the back side of friction plate backboard (12) and outside friction disc backboard (13) in being separately positioned on.
6. disc type braking tong as claimed in claim 1 (1), it is characterized in that the cross section (30) of support arm (3,4) is in the interior outside of support guide pin hole (5,6,7,8) zone between forms channel form, and this channel form has circular arc portion (31), and circular arc portion (31) and support arm (3,4) the inboard guide pin hole (5,7) or the center of circle (34) of outside guide pin hole (6,8) overlap or are approaching at least.
7. disc type braking tong as claimed in claim 1 (1), it is characterized in that, support (2) also has rack beam (35), rack beam (35) connects described two stands arm (3,4), be formed with two mounting holes (38) on the rack beam (35), the zone line (36) of the rack beam (35) between two mounting holes (38) is formed with the guiding groove (37) that is used for support housing (22).
8. disc type braking tong as claimed in claim 4 (1) is characterized in that, the bearing hole (28) of housing claw (23) is cylindrical.
9. disc type braking tong as claimed in claim 3 (1) is characterized in that, housing bridge portion supporting also comprises and is distributed in interior friction plate spring guide surfaces (41) housing bridge portion upper surface (42) both sides, two axial mutual isolation.
10. disc type braking tong as claimed in claim 9 (1) is characterized in that, the guiding size (46) of interior friction plate spring guide surface (41) will be consistent with the breakage of interior friction plate (44) and outside friction disc (45) and the losing quantity of brake disc (43) at least.
11. disc type braking tong as claimed in claim 1 (1) is characterized in that, cylinder body (40) has a projection (48) in the cylinder body side (47) of avoiding housing bridge portion (26).
12. disc type braking tong as claimed in claim 1 (1), it is characterized in that, join domain (39) in housing bridge portion (26) with cylinder body (40), the internal surface (49) of housing bridge portion (26) has guide surface (50), and the guide surface center (51) of guide surface (50) overlaps with the center (52) of cylinder body (40) or be approaching.
13. disc type braking tong as claimed in claim 12 (1) is characterized in that, the axial dimension (53) of guide surface (50) will be consistent with the breakage of interior friction plate (44) and outside friction disc (45) and the losing quantity of brake disc (43) at least.
14. disc type braking tong as claimed in claim 4 (1) is characterized in that, housing claw (23) has blank (55) at its bearing hole (28) exterior contour (54).
15. disc type braking tong as claimed in claim 14 (1), it is characterized in that, the inboard (56) of housing claw (23) overlaps with blank plane (58) at the guide section (57) of blank (55), rise to blank upper end (59) then, and basic parallel in blank upper end (59) with blank plane (58).
16. disc type braking tong as claimed in claim 1 (1) is characterized in that, radially is provided with projection (60) at the outer surface of interior friction plate backboard (12), projection (60) is positioned at the neutral position between the friction plate backboard guide pin hole (14,16).
17. disc type braking tong as claimed in claim 16 (1) is characterized in that, radially projection (60) thickness (61) is less than the thickness (62) of interior friction plate backboard (12).
18. disc type braking tong as claimed in claim 16 (1) is characterized in that, forms two barbs (64) at the topside (63) of projection (60) radially.
19. disc type braking tong as claimed in claim 16 (1) is characterized in that, forms two position-arresting grooves (65) at the topside (63) of projection (60) radially.
20. disc type braking tong as claimed in claim 16 (1) is characterized in that, forms a barb (64) and a position-arresting groove (65) at the topside (63) of projection (60) radially.
21. disc type braking tong as claimed in claim 16 (1), it is characterized in that, radially projection (60) is arranged according to thickness (62) adjustment of interior friction plate backboard (12), with the distance (105) of friction plate spring (25) active force (106) in being provided with to interior friction plate (44) mass center line (67).
22. disc type braking tong as claimed in claim 16 (1) is characterized in that, radially projection (60) is provided with a position-arresting groove (68) in the zone of its thinner thickness.
23. disc type braking tong as claimed in claim 16 (1) is characterized in that, the radially-outer surface of interior friction plate backboard (12) is provided with the radially projection (69) of two separation.
24. disc type braking tong as claimed in claim 23 (1) is characterized in that, the radially projection (69) of two separation is arranged on radially projection (60) both sides symmetrically.
25. disc type braking tong as claimed in claim 24 (1), it is characterized in that, the outer surface (70) of the radially projection (69) of two separation is positioned on the coaxial surface (71) of cylinder body (40), and its axle center (72) overlap with cylinder body center (52) or be approaching at least.
26. disc type braking tong as claimed in claim 1 (1), it is characterized in that, first guide pin hole (14,16) or second guide pin hole (15,17) have a plurality of concentric circle segmental arcs (73) and a plurality of concave surface (75), concentric circle segmental arc (73) and concave surface (75) are arranged alternately along the guide pin hole contoured surface (74) of first guide pin hole (14,16) or second guide pin hole (15,17).
27. disc type braking tong as claimed in claim 26 (1) is characterized in that, the number of concave surface (75) is four.
28. disc type braking tong as claimed in claim 26 (1), it is characterized in that, first guide pin hole (14,16) or second guide pin hole (15,17) concave surface (75) evenly distributes, at interior friction plate backboard, outside friction disc backboard (12,13) plane (77) go up suffered power with in, outside friction disc backboard (12,13) symmetry axis (76) parallel and with interior friction plate backboard, outside friction disc backboard (12,13) symmetry axis (76) is vertical, at interior friction plate backboard, the plane (77) of outside friction disc backboard (12,13) is gone up suffered power and is acted directly on the concentric circle segmental arc (73) in the guide pin hole contoured surface (74).
29. disc type braking tong as claimed in claim 5 (1) is characterized in that, the area of friction plate backboard (12) or outside friction disc backboard (13) in the area of noise abatement sheet (29) equals.
30. disc type braking tong as claimed in claim 5 (1) is characterized in that, noise abatement sheet (29) has the 3rd guide pin hole and pawl (78), and a plurality of pawls (78) form the internal surface from the 3rd guide pin hole.
31. disc type braking tong as claimed in claim 30 (1) is characterized in that, the pawl (78) of noise abatement sheet (29) is filled in the concave surface (75) of guide pin hole (14,15,16,17) of friction plate backboard (12,13).
32. disc type braking tong as claimed in claim 30 (1) is characterized in that, the pawl (78) of noise abatement sheet (29) is filled in the concave surface (75) of guide pin hole (14,15,16,17) of friction plate backboard (12,13), and exceeds a little.
33. disc type braking tong as claimed in claim 1 (1) is characterized in that, on the end of guide finger (10,11) a guide finger flange plate (80) is arranged, and a guide finger circlip groove (81) is arranged on another end.
34. disc type braking tong as claimed in claim 1 (1) is characterized in that, guide finger (10,11) respectively has a circlip groove (81) at its two ends.
35. disc type braking tong as claimed in claim 3 (1), it is characterized in that, the bottom surface (84) of sidewall (83) that interior friction plate spring (25) has two spring detents (82), join with spring detent and the interior friction plate spring that is connected sidewall has on bottom surface (84) one blank (85).
36. disc type braking tong as claimed in claim 35 (1) is characterized in that, blank (85) on bottom surface (84) are rectangular, and blank longitudinal surface (86) is parallel with the longitudinal surface (87) of bottom surface; At the zone line (89) of each blank longitudinal surface (86), the blank projection (88) of each bottom surface all extends at the center line (90) of the surface (91) of the bottom surface (84) of interior friction plate spring to blank (85) of bottom surface.
37. disc type braking tong as claimed in claim 36 (1) is characterized in that, the end face (92) of the blank projection (88) of bottom surface is circular arc type slightly, makes the distance between the end face (92) of projection go up minimum at blank center line (90).
38. disc type braking tong as claimed in claim 36 (1) is characterized in that, the blank projection (88) of bottom surface has parallel base (93).
39. disc type braking tong as claimed in claim 35 (1), it is characterized in that, blank (85) on the bottom surface are rectangular substantially, blank longitudinal surface (86) is parallel with the longitudinal surface (87) of bottom surface (84), at a blank topside (94), the center line (90) of the projection of a tongue shape (95) blank (85) on the bottom surface, surface (91) of (84) in the bottom surface extends.
40. disc type braking tong as claimed in claim 35 (1), it is characterized in that, blank (85) on the bottom surface are rectangular, blank longitudinal surface (86) is parallel with the longitudinal surface (87) of bottom surface (84), at blank two topsides (94), respectively there is the center line (90) of projection (95) (91) blank (85) on the bottom surface, (84) surface of a tongue shape to extend in the bottom surface.
41. disc type braking tong as claimed in claim 4 (1), it is characterized in that, outside friction disc spring (24) has flat seat board (96), the sidewall (97) that links to each other with flat seat board (96), along the flat spring part (98) that this sidewall and flat seat board (96) extend in parallel, outside friction disc spring claw (99) links to each other with flat spring part (98) end.
42. disc type braking tong as claimed in claim 41 (1) is characterized in that, the shape of the sidewall of outside friction disc spring (97), flat spring part (98) and outside friction disc spring claw (99) is trapezoidal.
43. disc type braking tong as claimed in claim 1 (1) is characterized in that, support (2) is an one with a knuckle (102).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100375609A CN101581344B (en) | 2008-05-16 | 2008-05-16 | Disk type brake caliper |
| PCT/EP2009/003522 WO2009138253A1 (en) | 2008-05-16 | 2009-05-18 | Disc brake |
| US12/992,364 US20110180354A1 (en) | 2008-05-16 | 2009-05-18 | Disc Brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100375609A CN101581344B (en) | 2008-05-16 | 2008-05-16 | Disk type brake caliper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101581344A CN101581344A (en) | 2009-11-18 |
| CN101581344B true CN101581344B (en) | 2011-04-06 |
Family
ID=41363626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100375609A Expired - Fee Related CN101581344B (en) | 2008-05-16 | 2008-05-16 | Disk type brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581344B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252048B (en) * | 2011-07-11 | 2012-12-05 | 武汉元丰汽车零部件有限公司 | Bracket-free floating air pressure caliper disc brake |
| JP5682580B2 (en) * | 2012-02-14 | 2015-03-11 | 新日鐵住金株式会社 | Railway vehicle brake lining and disc brake equipped with the same |
| US8833527B2 (en) * | 2012-07-17 | 2014-09-16 | GM Global Technology Operations LLC | Brake assembly with compression spacer |
| US8827054B2 (en) * | 2012-08-03 | 2014-09-09 | Arvinmeritor Technology, Llc | Brake caliper mounting assembly |
| DE102013008160A1 (en) * | 2013-05-13 | 2014-11-13 | Wabco Europe Bvba | Caliper disc brake of a vehicle, in particular a commercial vehicle, and hold-down spring such a brake |
| CN105041918A (en) * | 2015-09-02 | 2015-11-11 | 万向钱潮（上海）汽车系统有限公司 | Integrated brake calliper |
| CN107178569B (en) * | 2017-06-09 | 2019-03-08 | 浙江零跑科技有限公司 | Automobile friction returning quickly structure |
| CN109555799A (en) * | 2017-09-23 | 2019-04-02 | 天津市冠通汽车部件制造有限公司 | A kind of new automobile front brake |
| JP7456885B2 (en) * | 2020-08-07 | 2024-03-27 | 曙ブレーキ工業株式会社 | disc brake device |
| JP7476027B2 (en) | 2020-08-07 | 2024-04-30 | 曙ブレーキ工業株式会社 | Disc brake pads |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509619A (en) * | 1982-06-17 | 1985-04-09 | General Motors Corporation | Shoe mounted disc brake caliper and shoe support structure |
| EP0311239A1 (en) * | 1987-08-27 | 1989-04-12 | General Motors France | Floating-caliper disc brake |
| CN1798933A (en) * | 2003-03-20 | 2006-07-05 | 卢卡斯汽车股份有限公司 | Disc brake with brake linings guided on bolts |
| CN101035997A (en) * | 2004-10-08 | 2007-09-12 | 罗伯特博世有限公司 | Friction element and disc brake |
-
2008
- 2008-05-16 CN CN2008100375609A patent/CN101581344B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509619A (en) * | 1982-06-17 | 1985-04-09 | General Motors Corporation | Shoe mounted disc brake caliper and shoe support structure |
| EP0311239A1 (en) * | 1987-08-27 | 1989-04-12 | General Motors France | Floating-caliper disc brake |
| CN1798933A (en) * | 2003-03-20 | 2006-07-05 | 卢卡斯汽车股份有限公司 | Disc brake with brake linings guided on bolts |
| CN101035997A (en) * | 2004-10-08 | 2007-09-12 | 罗伯特博世有限公司 | Friction element and disc brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101581344A (en) | 2009-11-18 |
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