CN1862049A - Tray-type brake device for railway vehicle - Google Patents
Tray-type brake device for railway vehicle Download PDFInfo
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- CN1862049A CN1862049A CNA2006100779001A CN200610077900A CN1862049A CN 1862049 A CN1862049 A CN 1862049A CN A2006100779001 A CNA2006100779001 A CN A2006100779001A CN 200610077900 A CN200610077900 A CN 200610077900A CN 1862049 A CN1862049 A CN 1862049A
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- braking
- brake device
- brake
- clamp lever
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
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- General Engineering & Computer Science (AREA)
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Abstract
The disclosed disk braking device for rail vehicle comprises: two caliper lever (6/6) every with braking block (7/7) to clamp vehicle wheel (disk) D, a braking cavity (14) of movable bar (15) with front or back direction being driven, a rotating transfer arm (15) on (15), a flexible axis (10) blocked with arm (16). This invention can reduce structure size and introduces large braking capacity.
Description
Technical field
The present invention relates to be used for the structure of the Disk brake apparatus of rail truck.
Background technique
As this Disk brake apparatus, it is example that patent document 1 disclosed situation is arranged.Disk brake apparatus in this patent document 1 is: the cylinder that is arranged at two brake levers (clamp lever) end by driving, with the lever pin that is arranged on the brake lever intermediate portion as fulcrum, be arranged on liner on brake lever the other end (braking backing member (brake pad)) from the both sides cramping, brake.
(patent documentation 1) spy opens flat 4-201672 communique (the 1st figure)
For above-mentioned Disk brake apparatus,, require powerful braking force to supply with and compactedness day by day in viewpoint such as rail truck speed up, stopping distance shortening in recent years.
This point for above-mentioned patent documentation 1 described structure, in order to realize bigger braking force, must enlarge the lever arm ratio that above-mentioned cylinder increases thrust, increases brake lever.But, no matter adopt large-scale cylinder still to increase the lever arm ratio of brake lever, all can not avoid the maximization of braking device self, forfeiture can be arranged on the compactedness in the railway chassis narrow space.Particularly,, can't tackle with existing structure because the installing space restriction is strict for the power car that on axletree, is provided with motor.
Summary of the invention
The present invention proposes in view of above-mentioned main points just, and its main purpose is to provide a kind of high-caliber disc brake device for railway vehicles that makes the best of both worlds, and can keep and even improve the compactedness of device self on the one hand, on the other hand, increases braking ability.
The problem that the present invention will solve the following describes the device and the effect that solve this problem as mentioned above.According to viewpoint of the present invention, can provide the disc brake device for railway vehicles of following structure.Comprise: two clamp levers that the braking backing member of cramping brake disc is housed respectively; Have to stretching out direction or returning the actuator of the movable rod that at least one direction of direction is activated; The reinforcement shifting mechanism can transform to the action of above-mentioned movable rod and enlarges or dwindle on the direction at interval of above-mentioned two clamp levers, and increases its dynamics.In addition, " reinforcement " refers to apply less power and obtains bigger power in this specification.
Thus, make by the reinforcement shifting mechanism and stretch out the action reinforcement on the axial direction of movable rod of actuator, can enlarge or dwindle the powerful clamp lever that drives on its direction at interval.Its result is, need not to increase the lever arm ratio of the leverage that constitutes a clamp lever part, also need not to use the large-scale actuator of high output can obtain bigger braking force.In addition, the direction of action of movable rod can be by being delivered to the clamp lever after the conversion of reinforcement shifting mechanism, so a kind of actuator allocation position and the degrees of freedom of configuration direction, not only compact braking ability but also excellent Disk brake apparatus of improving can be provided.
◆ in above-mentioned disc brake device for railway vehicles, preferred above-mentioned reinforcement shifting mechanism includes enlarging or dwindle and is promoted on the direction at interval of above-mentioned clamp lever or the transmission shaft of drawing.
Thus, can provide a kind of Disk brake apparatus simple in structure.
◆ in above-mentioned disc brake device for railway vehicles, preferred above-mentioned reinforcement shifting mechanism includes thread mechanism, wedge mechanism or cam mechanism.
Thus, can make Disk brake apparatus simple in structure, reduce manufacture cost.
◆ in above-mentioned disc brake device for railway vehicles, preferred above-mentioned actuator be disposed at two clamp levers folded every the position.
Thus, can further improve the compactedness of Disk brake apparatus, even if, also can not interfere with each other and configuration easily with these devices for the rail truck that a plurality of various devices are installed on the railway chassis.
◆ in above-mentioned disc brake device for railway vehicles, preferred above-mentioned actuator level relatively is tilted configuration.
Can in the space of compactness, actuator be set thus, so help the further compactness of above-mentioned Disk brake apparatus.In addition, movable rod action in an inclined direction can suitably be transformed to the motion of clamp lever by the reinforcement shifting mechanism.
◆ in above-mentioned disc brake device for railway vehicles, preferably be provided with clearance adjustment mechanism at above-mentioned actuator or above-mentioned reinforcement shifting mechanism.
The compact structure of the type high performance disc braking device in the gap that can adjust braking backing member part automatically can be provided thus.
◆ in above-mentioned disc brake device for railway vehicles, preferred above-mentioned actuator structure is the pneumatic type actuator.
That is, when having used the actuator of oil pressure, because the bubble that the frictional heat of braking produces in oil produces baneful influence to braking force, so actuator must limit the miniaturization of Disk brake apparatus fully away from the braking backing member as thermal source.If be pneumatic type actuator structure, there is not the thermogenetic baneful influence of friction of braking in another side, helps further compactness.
Description of drawings
Fig. 1 is the unitary side view of the Disk brake apparatus of first mode of execution of the present invention.
Fig. 2 be expression clamp lever the drive transmitting structure want portion's plan view.
Fig. 3 is the part section enlarged view of the side-looking direction of the drive transmitting structure of expression clamp lever and clearance adjustment mechanism.
Fig. 4 is an expression cam disk shape, the view of direction shown in the arrow A among Fig. 3.
Fig. 5 be clamp lever in the Disk brake apparatus of expression second mode of execution the drive transmitting structure want portion's plan view.
Fig. 6 be clamp lever in the Disk brake apparatus of expression the 3rd mode of execution the drive transmitting structure want portion's plan view.
Fig. 7 is the profile of overlooking that is arranged at the interior clearance adjustment mechanism of brake chamber in expression the 3rd mode of execution.
Fig. 8 be clamp lever in the Disk brake apparatus of expression the 4th mode of execution the drive transmitting structure want portion's plan view.
Description of reference numerals:
1 Disk brake apparatus
6/6 clamp lever
7/7 brake shoe
10 telescopic shafts
11 rotation input shafts
12/12 tapped hole
13/13 threaded body (transmission shaft)
14 brake chambers (actuator)
15 movable rod
Arm is transmitted in 16 rotations
17 worm screws
Gear is adjusted in 18 gaps
Rod is adjusted in 21 gaps
27 wedge mechanisms
43 cam mechanisms
Embodiment
Below, the working of an invention mode is described.Fig. 1 is the unitary side view of the Disk brake apparatus of first mode of execution of the present invention, Fig. 2 be expression clamp lever the drive transmitting structure want portion's plan view.Fig. 3 is the part section enlarged view of the side-looking direction of the drive transmitting structure of expression clamp lever and clearance adjustment mechanism.Fig. 4 represents to be used for the shape of the cam disk that the gap adjusts, and is the view of direction shown in the arrow A among Fig. 3.
First mode of execution
Fig. 1 has shown the unitary side view of the Disk brake apparatus 1 of first mode of execution, this Disk brake apparatus 1 is, the bottom of the carriage 2 of railway chassis is fixed in pivot backing pin 3 horizontal supportings abridged in figure, and lifts the matrix 4 of can rock from side to side (swing) around pivot backing pin 3.As wanting shown in portion's plan view of Fig. 2, the fulcrum pin 5/5 of vertical support pairing left and right on above-mentioned matrix 4, and can shake the clamp lever 6/6 of rotation around it in that fulcrum pin 5/5 upper support is a pair of respectively.
As shown in Figure 1, the middle part of a pair of clamp lever 6/6 is supported in matrix 4 respectively, and has the brake shoe (brake head) 7 that is used for installing the braking backing member at the one end.In addition, as shown in Figure 1, this middle part is configured in apart from clamp lever 6/6 intermediate portion slightly on the position away from brake shoe 7, but also can be in the intermediate portion.Brake shoe 7/7 can prop up wheel (brake disc) D on the railway chassis from both sides cramping axle.
Each brake shoe 7 can be around running shaft 8 rotations of an end that is installed on clamp lever 6.In addition, the bottom of a pair of brake shoe 7/7 is connected by the parallel retaining mechanism 9 that is made of linkage component etc., even if matrix 4 and when supporting clamp lever 6/6 on it and vacillating now to the left, now to the right, also keep the parallelism between the brake shoe 7/7, in addition, when braking work, 7/7 pair of wheel of brake shoe (brake disc) D carries out equal pushing.
In addition, above-mentioned a pair of clamp lever 6/6 and ends brake shoe 7 opposite sides are by telescopic shaft 10 knot that is connected with each other.This telescopic shaft 10 comprises: the rotation input shaft 11 of suitable length shown in Fig. 2 etc.; Screw thread is combined in the threaded body (transmission shaft) 13/13 in the tapped hole 12/12 that is arranged at these rotation input shaft 11 two ends respectively.This threaded body 13/13 and rotation input shaft 11 arranged coaxial.In other words, the length direction of this threaded body 13/13 disposes along the direction that enlarges or dwindle the interval of clamp lever 6 (between the axial direction of wheel D, a pair of clamp lever 6/6 and the opposite direction between a pair of brake shoe 7/7, the direction vertical with fulcrum pin 5/5).In addition, the end of threaded body 13/13 is articulated in the end of above-mentioned clamp lever 6/6.
The tapped hole of being opened on rotation input shaft 11 two ends 12/12 forms reverse screw thread mutually, and the threaded body 13/13 that combines with its screw thread also is same.Its result is, during rotation rotation input shaft 11, threaded body 13/13 rotation input shaft 11 relatively advances screw thread/move back screw thread, can make clamp lever 6/6 around fulcrum pin 5/5 rotation under the expanding-contracting action of telescopic shaft 10.Owing to be based on the reinforcement shifting mechanism of such thread mechanism,, help the compactness of whole device so can constitute the reinforcement shifting mechanism of high multiple compactly.In addition, carve on the outer circumferential face of the length direction central part of above-mentioned rotation input shaft 11 and be provided with spline.
As shown in Figure 1, the below of above-mentioned matrix 4 forms the hollow shape of with cover closing, in this inner space, is provided as the brake chamber 14 of actuator in the space between rotation input shaft 11 and rest pin 5/5.Brake chamber 14 is the pneumatic type actuator, and having can be to the movable rod 15 of oblique below advance and retreat.Brake chamber 14 is fixed in matrix 4 with the state of the relative horizontal tilt of its axis.
Shown in Fig. 1 and Fig. 3 etc., rotation input shaft 11 upper supports of above-mentioned telescopic shaft 10 have the action that is used for above-mentioned brake chamber 14 to transmit arm 16 to the rotation that this rotation input shaft 11 transmits.The top of above-mentioned movable rod 15 is articulated in the top that arm 16 is transmitted in this rotation.As shown in Figure 3, the base portion that arm 16 is transmitted in rotation is a hollow shape, and its internal configurations has: the axle that can a rotate freely worm screw 17 that gets up; Gear 18 is adjusted in worm screw 17 gap that is meshed, formed on the part of periphery tooth therewith.This gap is adjusted on the inner peripheral surface of axis hole of gear 18 and is carved with spline, and simultaneously, gear 18 is adjusted with respect to the spline that is carved with on above-mentioned rotation input shaft 11 outer circumferential faces in this gap, can axially be free to slide and can not counterrotatingly link.
In addition, the inner space that the gear shaft of above-mentioned worm screw 17 transmits arm 16 base portions from rotation is projected into the outside, fixed installation cam disk 19 on this projection.The view of direction is shown in Figure 4 shown in the arrow A of Fig. 3, forms a notch part 20 on the outer rim of this cam disk.An end that is fixed on the gap adjustment rod 21 on the matrix 4 runs through this notch part 20.
Under above structure, after above-mentioned brake chamber 14 is supplied with pressurized air, shown in Fig. 3 arrow, stretching out the arm that the movable rod 15 that is activated on the direction promotes rotation transmission arm 16, so be configured in gap adjustment gear 18 (maintaining fastening state) and the rotation of rotation transmission arm 16 one that the base portion of arm 16 is transmitted in rotation with worm screw 17, adjust rotation input shaft 11 rotations that gear 18 engages with this gap, the result is shown in Fig. 2 arrow, and telescopic shaft 10 is upheld.
In other words, the action of stretching out of movable rod 15 is transmitted the spinning movement that arm 16 is transformed to rotation input shaft 11 by rotation, and be transformed to the action that threaded body 13 is extrapolated by the spinning movement that the thread mechanism that above-mentioned tapped hole 12 and threaded body 13 constitutes will rotate input shaft 11, so, the rotation that clamp lever 6/6 is subjected to the symmetry of direction shown in Fig. 2 arrow drives, thereby the part interval each other that links with threaded body 13 is increased, the braking backing member that is installed on brake shoe 7/7 contacts with wheel D, produces suitable braking force.
In addition, above-mentioned clamp lever 6 constitutes leverage, with threaded body 13 junction for adding the force, be fulcrum with the part of fulcrum pin 5, with with determine 7 linking portion of brake shoe be point of action, utilize reinforcement shifting mechanism and leverage to apply powerful braking to wheel D based on thread mechanism.
On the other hand, be accompanied by and use and during the wearing and tearing of above-mentioned braking backing member, the stroke of movable rod 15 increases during braking work, in addition, the rotating distance that arm 16 is transmitted in rotation also increases gradually.This point, in the present embodiment, when the rotating distance of rotation transmission arm 16 surpasses set value, the above-mentioned gap adjustment rod 21 that is positioned at its end of travel touches the end and the promotion of the notch part 20 of above-mentioned cam disk 19 (Fig. 4), so above-mentioned worm screw 17 and cam disk 19 rotate together, gear 18 rotation transmission arm 16 rotations are relatively adjusted in above-mentioned gap.Its result is, can be accompanied by the gap adjustment of braking backing member wearing and tearing automatically, and the gap value between the frequent braking work of keeping front wheel (brake disc) D and braking backing member is good.Keep the roughly certain result of gap value to be, keep the braking operating time roughly certain automatically, simultaneously because such structure, can compact automatic backlash regulating mechanism, help the compactness of device integral body.
More than shown in the Disk brake apparatus 1 of first mode of execution comprise that two clamp levers 6/6 that brake shoe 7/7 is housed respectively, brake shoe 7/7 are equipped with and are used for the braking backing member of cramping as the wheel D of brake disc; Have to the brake chamber 14 that stretches out the movable rod 15 that direction is activated; The reinforcement shifting mechanism transforms to the action of above-mentioned movable rod 15 on the septal direction that enlarges above-mentioned two clamp levers 6/6, and the increase dynamics.
Promptly, in the present embodiment, transmit the combination of arm 16 and telescopic shaft 10 by rotation, movable rod 15 stretch out extension action that action is transformed to telescopic shaft 10 (in other words, the action of releasing to threaded body 13 outsides), thus, clamp lever 6/6 is actuated to enlarge and telescopic shaft 10 linking portions interval each other, the braking of braking backing member.And the action force that brake chamber 14 produces obtains reinforcement by rotation transmission arm 16 with the thread mechanism that constitutes the part of telescopic shaft 10 by above-mentioned, and is delivered to clamp lever 6/6.
Thereby, because can be with the end (being linked to the end of telescopic shaft 10) of the above-mentioned clamp lever 6/6 of the powerful ground rotary driving of the power after increasing, so need not to increase the lever arm ratio of the leverage that constitutes clamp lever 6 parts, also need not to use large-scale brake chamber 14, can obtain powerful braking force.In addition, the direction of action of movable rod 15 can be by being delivered to clamp lever 6 after the conversion of reinforcement shifting mechanism, so improved the equipping position and the degrees of freedom that sets direction of brake chamber 14.Thereby can realize and equal in the past braking ability with compact brake chamber 14.In other words, can provide not only compact braking ability but also excellent Disk brake apparatus 1.
In addition, in the present embodiment, above-mentioned telescopic shaft 10 has comprised the threaded body 13/13 that is promoted on the direction at the interval that enlarges clamp lever 6/6, carry out the conversion of reinforcement and action simultaneously by above-mentioned thread mechanism.Thereby, can realize the structure of simple Disk brake apparatus 1.
In addition, in the present embodiment as shown in Figure 1, above-mentioned brake chamber 14 be disposed in the middle of above-mentioned two clamp levers 6/6 folded every position (position between the clamp lever 6/6).Thereby further improve the compactedness of Disk brake apparatus 1, so be suitable for around wheel D, installing the rail truck of a plurality of various devices.
In addition, in the present embodiment, brake chamber 14 level relatively is tilted configuration.Thus, can be in tight space arrangement brake chamber 14, so help the further compactness of Disk brake apparatus 1.In addition, the action of the true dip direction of movable rod 15 also can suitably be transformed to the spinning movement of clamp lever 6 by rotation transmission arm 16 and telescopic shaft 10.
In addition, in the Disk brake apparatus 1 of present embodiment, be provided with clearance adjustment mechanism on as the rotation transmission arm 16 that constitutes above-mentioned reinforcement shifting mechanism parts, comprising: gear 18 etc. is adjusted in cam disk 19, notch part 20, worm screw 17, gap.Thereby can provide the compact structure of the type high performance disc braking device 1 that can adjust the gap between brake disc (wheel) D and the braking backing member automatically.
Second mode of execution
The Disk brake apparatus 1 of second mode of execution as shown in Figure 5, telescopic shaft 10 ' is one-sided thread type structure.In addition, in this second mode of execution, omit its explanation for the identical mark of structure member mark identical with first mode of execution.Following the 3rd mode of execution is later also identical therewith.
As shown in Figure 5, in the telescopic shaft 10 ' of present embodiment, only at the end formation tapped hole 12 same as described above that rotates input shaft 11 ', to combine with threaded body (transmission shaft) 13 screw threads, and being arranged with axis hole 25 at the other end of rotation input shaft 11 ', supporting axle (transmission shaft) 22 can be linked in this axis hole 25 with rotating freely relatively.This supporting axle 22 is structure as a whole, and comprising: be embedded in above-mentioned axis hole 25 and its axial regions that rotate freely 24 and the collar part 23 that connects with the end face of above-mentioned rotation input shaft 11 ' relatively.
Above-mentioned supporting axle 22 will be articulated in the clamp lever 6 of a side with the end that rotation input shaft 11 ' links the side opposition side.The head that screw thread is incorporated into the above-mentioned threaded body 13 that rotates input shaft 11 ' is identical with above-mentioned first mode of execution, is articulated in the clamp lever 6 of opposite side.
In addition, because the telescopic shaft 10 ' of the reinforcement shifting mechanism of present embodiment is one-sided thread type, so there is the clamp lever 6 of screw thread one side to be easy to more shake, its result is, might not shake on an equal basis by two clamp levers 6/6, deviation is arranged the opportunity that the braking backing member of both sides pushes brake disc (wheel) D equally.In order to prevent this situation, be used for afterburning energizing spring 26 being provided with between two clamp levers 6/6 to dwindle the interval between the clamp lever 6/6.Other structures are identical with above-mentioned first mode of execution.
The structure of this second mode of execution also is under the action of brake chamber 14, transmit the 11 ' rotation of arm 16 order rotation input shafts by rotation, threaded body 13 advances screw thread thus, threaded body 13 and fulcrum 22 are promoted on the direction that enlarges clamp lever 6/6 interbody spacer, thereby can apply braking force to wheel D by the braking backing member on the brake shoe 7 that is installed in clamp lever 6 front ends.
The 3rd mode of execution
In the Disk brake apparatus 1 of the 3rd mode of execution shown in Figure 6, arm 16 is transmitted in the telescopic shaft 10 and the rotation that replace in first mode of execution, wedge mechanism 27 is set as the reinforcement shifting mechanism.Below describe in detail with regard to this wedge mechanism 27, fixing hollow shape support 28 on the above-mentioned matrix 4, two of the two side walls upper supports of this support 28 can be respectively at its passing shafts (transmission shaft) 29/29 that be free to slide on axially.Two passing shafts 29/29 are with mutual mode arranged coaxial to the top, distolateral end that is articulated in clamp lever 6 separately respectively outside it, and inner side bearing roller 30.
In addition, the chamber portion 32 of brake chamber 14 ' is fixed on this support 28, and its movable rod 15 reaches the inside of support 28, and its front end is equipped with block wedge 31.This block wedge 31 is disposed on the position between above-mentioned two passing shafts 29/29, and the inclined-plane that contacts with above-mentioned roller 30/30 is arranged.In addition, brake chamber 14 ' horizontal arrangement in the present embodiment.
Built-in gapped regulating mechanism in the structure of the brake chamber 14 ' in the present embodiment, describe its structure in detail with reference to Fig. 7, axially be free to slide in the chamber portion 32 of brake chamber 14 ' and free rotary ground supporting has above-mentioned movable rod 15, and the end of this movable rod 15 forms flange 33.Between this flange 33 and chamber portion 32 inwalls flexible dividing plate 34 is arranged, by this dividing plate 34, the inner space of chamber portion 32 is divided into two spaces.In addition, on aforementioned barriers 34 opposite sides, between flange 33 and chamber portion 32 inwalls, be provided with restoring spring 35.
In addition, bar 36 pivots prop up in the inside of above-mentioned chamber portion 32, and this bar 36 comprises actuating strut 37 and claw 38.And be provided with energizing spring 39 with the posture under regulation bar 36 normalities.
In addition, be formed with the spline of not representing among the figure on the outer circumferential face of the axial region of above-mentioned movable rod 15, by this spline, gear 40 is set to relative movable rod 15 and can not rotates relatively and axially be free to slide.And, the tooth portion that forms on the periphery of this gear 40 relatively, the claw 38 of above-mentioned bar 36 can block or get loose.
And then, form tapped hole 41 at the front end of above-mentioned movable rod 15, and threaded stem 42 screw threads are incorporated into this tapped hole 41.And the front end of this threaded stem is installed with above-mentioned wedge 31.
Under the above structure, during normality, when the chamber of brake chamber 14 ' portion 32 supplies with pressurized air, dividing plate 32 overcomes restoring spring 35, by the moving movable rod 15 of flange 33 forward end one thruster,, extend between the roller 30/30 so wedge 31 moves, passing shaft 29/29 is released laterally, enlarged the interval between the clamp lever 6/6.Its result is, is installed on the braking backing member cramping wheel D on the brake shoe 7/7, applies suitable braking force.In addition, when discharging pressurized air from chamber portion 32, movable rod 15 is by restoring spring 35 effect playback, and clamp lever 6/6 is got back to brake releasing position by energizing spring 26 (Fig. 6) effect.
On the one hand, the wearing and tearing of braking backing member are when the stroke of movable rod 15 surpasses set value, in the end of travel of stretching out of movable rod 15, the claw 38 of bar 36 engages with the tooth portion of gear 40 (Fig. 7), and this bar 36 is subjected to overcoming under the promotion situation of above-mentioned flange 33 energizing spring 39 deflections take place at actuating strut 37.So, since the tooth portion that the claw 38 of bar 36 promotes gear 40, gear 40 rotations, and also one rotation of the movable rod 15 that engages with its spline is so screw thread is incorporated into the threaded stem 42 forward end one side screw advancement of this movable rod 15.Discharge pressurized air from chamber portion 32, when movable rod 15 playbacked by restoring spring 35 effects, the engaging of claw 38 and gear 40 was removed, and bar 36 is got back to original posture by energizing spring 39 effects.Its result is, is accompanied by the wearing and tearing of the braking backing member that is installed on brake shoe 7/7, carries out the gap adjustment automatically, and the frequent braking work of keeping front wheel D and the gap value that is installed between the braking backing member of brake shoe 7/7 are good.
As implied above, the effect of the wedge mechanism 27 of the Disk brake apparatus 1 of present embodiment by having wedge 31 and roller 30/30 and passing shaft 29/29 is with the pushing action that action is transformed to passing shaft 29/29 symmetry laterally of stretching out of movable rod 15, drive clamp lever 6/6 and enlarge it at interval, implement the braking of braking backing member.In addition, the action force of brake chamber 14 ' by behind the reinforcement, is delivered to clamp lever 6/6 by above-mentioned wedge mechanism 27.
Thus, identical with first mode of execution, because can be with the end (being articulated in the end of passing shaft 29) of the above-mentioned clamp lever 6/6 of the powerful ground rotary driving of the power behind the reinforcement, so can obtain bigger braking force.In addition, can improve the equipping position and the degrees of freedom that sets direction of movable rod 15.Thereby can provide not only compact braking ability but also excellent Disk brake apparatus 1.
In addition, in the present embodiment, passing shaft 29 is promoted on the septal direction that enlarges clamp lever 6/6 by wedge mechanism 27, and D applies braking force to wheel.Thereby can provide Disk brake apparatus 1 simple in structure, to seek to reduce manufacture cost.
In addition, also brake chamber 14 ' is arranged between two clamp levers 6 in the present embodiment, so can realize the compact structure of Disk brake apparatus 1.And then, in above-mentioned brake chamber 14 ', be provided with the clearance adjustment mechanism of forming by gear 40 and bar 36 etc., have the Disk brake apparatus 1 that automatic backlash is adjusted function and compactness so can provide.
The 4th mode of execution
The Disk brake apparatus 1 of the 4th mode of execution shown in Figure 8 has replaced the telescopic shaft 10 in first mode of execution, is provided with cam mechanism 43.These cam mechanism 43 structures are, fixed installation dish cam (cam body) 45 on the camshaft 44 of above-below direction configuration disposes driven shaft (transmission shaft) 46/46 will coil the mode that cam 45 clamps.
Driven shaft 46/46 is the guide mechanism by not illustrating among the figure respectively, can install in the axial direction with being free to slide.Two driven shaft 46/46 arranged coaxial, its outer end one side is articulated in the end of clamp lever 6 separately respectively, on the other hand, forms smooth bearing surface 47 in an inner side.The bearing surface 47 of each driven shaft 46 disposes relatively in the mode of clamping above-mentioned dish cam 45 separately from each other.Above-mentioned dish cam 45 structures are to form almost diamond, by the bearing surface 47/47 symmetrically laterally promotion of rotation with both sides.
Carve on the outer circumferential face of above-mentioned camshaft 44 and be provided with spline, this spline upper support has rotation to transmit arm 16.And the front end of axis horizontal (parallel with axletree) direction movable rod 15 configuration, brake chamber 14 is articulated in this rotation and transmits on the arm 16.
In addition, above-mentioned rotation transmission arm 16 disposes direction except it and is linked to the length and direction difference of the arm on the above-mentioned movable rod 15, and is identical with the structure of above-mentioned first mode of execution, so omit its detailed description.In addition, in the present embodiment, the interior gap adjustment gear 18 (with reference to Fig. 3) of base portion that arm 16 is transmitted in rotation engages with above-mentioned camshaft 44 outer circumferential face splines.
In this 4th mode of execution, brake chamber 14 disposes with 6/6 crossings on different level of clamp lever as shown in Figure 8, the action of stretching out of movable rod 15 is transmitted the spinning movement that arm 16 is transformed to camshaft 44 by rotation, and this spinning movement is transformed to the driven shaft 46/46 release action of symmetry laterally by the effect of above-mentioned dish cam 45.Its result is that clamp lever 6/6 is activated to enlarge to each other at interval, implements the braking of braking backing member.
Idea from the effect of power, the power of stretching out of movable rod 15 is transformed to rotating force by rotation transmission arm 16 and makes camshaft 44 rotations, above-mentioned then rotating force is transformed to the power that is used for enlarging clamp lever 6/6 interbody spacer based on the effect of dish cam 45 by driven shaft 46/46.And, transmit arm 16 and 19 effects of above-mentioned cam disk by rotation with longer arm portion, the power of stretching out of movable rod 15 is increased and is delivered to clamp lever 6/6.Thereby identical with first mode of execution and second mode of execution, Disk brake apparatus 1 compact, the braking ability excellence also can be provided.
In the present embodiment, driven shaft 46/46 is promoted on the septal direction that enlarges clamp lever 6/6 by cam mechanism 43 effects, thus wheel D is applied braking force.Thereby, can realize the simple structure of Disk brake apparatus 1.
In addition, brake chamber 14 is configured in two situations between the clamp lever 6/6, all the feature with above-mentioned first mode of execution is identical to transmit the situation that clearance adjustment mechanism is set on the arm 16 in the rotation that constitutes the reinforcement shifting mechanism.
The change form
More than several suitable mode of executions of the present invention are illustrated, above-mentioned mode of execution for example also can carry out following change.
(1) in the above-mentioned mode of execution, on the direction of an end each interval that enlarges clamp lever 6 (expand evolution to), drives, make braking backing member cramping wheel D set on the brake shoe 7 that is installed on its other end thus, but be not limited thereto.That is, above-mentioned brake chamber 14,14 ' movable rod 15 to stretch out action (or returning action) also convertible to the direction of dwindling clamp lever 6/6 each interval, and be delivered to clamp lever 6/6.During this situation, for example in first mode of execution, the hand of spiral that is formed on the thread mechanism of telescopic shaft 10 is oppositely constituted, and the position of exchange telescopic shaft 10 and fulcrum pin 5 gets final product.
(2) in addition, above-mentioned brake chamber 14 structures are, movable rod 15 is activated stretching out direction when supplying with pressurized air, also can be activated returning direction.During this situation, for example in first mode of execution, only need the hand of spiral of the thread mechanism that will constitute on the telescopic shaft 10 oppositely just passable.In addition, even if much less structure not for single-lift be that dbl act is also passable.
(3) in the above-mentioned mode of execution, the braking backing member structure that is arranged at brake shoe 7 is for for contacting with wheel D braking, but the structure that the brake disc that cramping and wheel are provided with is separately braked also is fine.
Claims (7)
1. disc brake device for railway vehicles is characterized in that, comprising:
Two clamp levers that the braking backing member of cramping brake disc is housed respectively;
Have and stretching out direction or returning the actuator of the movable rod that is activated at least one direction of direction;
The action of above-mentioned movable rod can be transformed to and enlarge or dwindle on the direction at interval of above-mentioned two clamp levers, and increase the reinforcement shifting mechanism of its dynamics.
2. disc brake device for railway vehicles as claimed in claim 1 is characterized in that, above-mentioned reinforcement shifting mechanism is included in to enlarge or dwindle and is promoted on the direction at interval of above-mentioned clamp lever or the transmission shaft of drawing and constituting.
3. as claim 1 or the described disc brake device for railway vehicles of claim 2, it is characterized in that above-mentioned reinforcement shifting mechanism includes thread mechanism, wedge mechanism or cam mechanism and constitutes.
4. as any one described disc brake device for railway vehicles in the claim 1 to 3, it is characterized in that, above-mentioned actuator be disposed at above-mentioned two clamp levers folded every the position in.
5. as any one described disc brake device for railway vehicles in the claim 1 to 4, it is characterized in that above-mentioned actuator is tilted configuration with respect to level.
6. as any one described disc brake device for railway vehicles in the claim 1 to 5, it is characterized in that above-mentioned actuator or above-mentioned reinforcement shifting mechanism are provided with clearance adjustment mechanism.
7. as any one described disc brake device for railway vehicles in the claim 1 to 6, it is characterized in that above-mentioned actuator structure is the pneumatic type actuator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005136769 | 2005-05-10 | ||
| JP2005136769A JP4804791B2 (en) | 2005-05-10 | 2005-05-10 | Disc brake device for railway vehicles |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101418042A Division CN101561022B (en) | 2005-05-10 | 2006-05-10 | Disc brake device for railway vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1862049A true CN1862049A (en) | 2006-11-15 |
| CN100520105C CN100520105C (en) | 2009-07-29 |
Family
ID=37389552
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101418042A Expired - Fee Related CN101561022B (en) | 2005-05-10 | 2006-05-10 | Disc brake device for railway vehicles |
| CNB2006100779001A Expired - Fee Related CN100520105C (en) | 2005-05-10 | 2006-05-10 | Tray-type brake device for railway vehicle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101418042A Expired - Fee Related CN101561022B (en) | 2005-05-10 | 2006-05-10 | Disc brake device for railway vehicles |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4804791B2 (en) |
| KR (1) | KR100707820B1 (en) |
| CN (2) | CN101561022B (en) |
| HK (1) | HK1135752A1 (en) |
| TW (1) | TW200711918A (en) |
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| CN103958320A (en) * | 2011-12-14 | 2014-07-30 | 新日铁住金株式会社 | Caliper brake device for railroad vehicle |
| CN104870852A (en) * | 2012-12-26 | 2015-08-26 | 纳博特斯克有限公司 | Railway vehicle disc brake apparatus |
| CN106427941A (en) * | 2016-09-27 | 2017-02-22 | 张道勤 | New mechanical control braking system |
| CN104884330B (en) * | 2012-12-26 | 2017-05-10 | 纳博特斯克有限公司 | Railway vehicle disc brake apparatus |
| TWI621787B (en) * | 2015-08-24 | 2018-04-21 | 納博特斯克股份有限公司 | Caliper device and disk brake device including the same |
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| JP4946638B2 (en) * | 2007-05-31 | 2012-06-06 | 住友金属工業株式会社 | Disc brake device for railway vehicles |
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- 2006-04-28 TW TW095115328A patent/TW200711918A/en not_active IP Right Cessation
- 2006-05-09 KR KR1020060041369A patent/KR100707820B1/en active IP Right Grant
- 2006-05-10 CN CN2009101418042A patent/CN101561022B/en not_active Expired - Fee Related
- 2006-05-10 CN CNB2006100779001A patent/CN100520105C/en not_active Expired - Fee Related
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2010
- 2010-03-03 HK HK10102270.5A patent/HK1135752A1/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102216640A (en) * | 2008-11-18 | 2011-10-12 | 纳博特斯克株式会社 | Unit brake |
| CN102216640B (en) * | 2008-11-18 | 2013-10-16 | 纳博特斯克株式会社 | Unit brake |
| CN103958320A (en) * | 2011-12-14 | 2014-07-30 | 新日铁住金株式会社 | Caliper brake device for railroad vehicle |
| US9709106B2 (en) | 2012-12-26 | 2017-07-18 | Nabtesco Corporation | Railway vehicle disc brake apparatus |
| CN104884330B (en) * | 2012-12-26 | 2017-05-10 | 纳博特斯克有限公司 | Railway vehicle disc brake apparatus |
| CN104870852A (en) * | 2012-12-26 | 2015-08-26 | 纳博特斯克有限公司 | Railway vehicle disc brake apparatus |
| CN104870852B (en) * | 2012-12-26 | 2018-03-06 | 纳博特斯克有限公司 | Rolling stock disc brake apparatus |
| TWI621787B (en) * | 2015-08-24 | 2018-04-21 | 納博特斯克股份有限公司 | Caliper device and disk brake device including the same |
| CN109661340A (en) * | 2016-08-25 | 2019-04-19 | 德尔纳刹车公司 | Rod-type brake apparatus |
| CN109661340B (en) * | 2016-08-25 | 2021-01-01 | 德尔纳刹车公司 | Lever-type brake device |
| US11125285B2 (en) | 2016-08-25 | 2021-09-21 | Dellner Brakes Ab | Lever type braking device |
| CN106427941A (en) * | 2016-09-27 | 2017-02-22 | 张道勤 | New mechanical control braking system |
| CN106427941B (en) * | 2016-09-27 | 2024-02-27 | 张道勤 | Novel mechanical control braking system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060116718A (en) | 2006-11-15 |
| CN100520105C (en) | 2009-07-29 |
| KR100707820B1 (en) | 2007-04-13 |
| HK1135752A1 (en) | 2010-06-11 |
| TW200711918A (en) | 2007-04-01 |
| CN101561022A (en) | 2009-10-21 |
| CN101561022B (en) | 2011-08-03 |
| TWI306068B (en) | 2009-02-11 |
| JP2006315422A (en) | 2006-11-24 |
| JP4804791B2 (en) | 2011-11-02 |
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