WO2019073786A1 - Floating caliper disc brake device - Google Patents

Floating caliper disc brake device Download PDF

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Publication number
WO2019073786A1
WO2019073786A1 PCT/JP2018/035177 JP2018035177W WO2019073786A1 WO 2019073786 A1 WO2019073786 A1 WO 2019073786A1 JP 2018035177 W JP2018035177 W JP 2018035177W WO 2019073786 A1 WO2019073786 A1 WO 2019073786A1
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WO
WIPO (PCT)
Prior art keywords
brake device
caliper
pressing mechanism
wheel
disk brake
Prior art date
Application number
PCT/JP2018/035177
Other languages
French (fr)
Japanese (ja)
Inventor
吉川　和宏
Original Assignee
曙ブレーキ工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 曙ブレーキ工業株式会社 filed Critical 曙ブレーキ工業株式会社
Publication of WO2019073786A1 publication Critical patent/WO2019073786A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • 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
    • F16D55/225—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 the braking members being brake pads
    • F16D55/226—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
    • 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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes

Definitions

  • the present invention relates to a floating caliper type disk brake device.
  • the spring brake device in which a parking brake (auxiliary brake) is integrated with a caliper body of a normal floating type caliper brake (service brake) (see Patent Document 1).
  • the spring brake device includes a support, a caliper body slidably supported by the support via two slide pins, and first and second caliper arms formed by straddling wheels on the caliper body. And a caliper brake cylinder mounted on the first caliper arm, and first and second control wheels held by the first and second caliper arms.
  • the caliper body is provided with a lever type parking mechanism.
  • the parking mechanism includes a spring actuator fixed to the caliper body, a hydraulic piston disposed on the other of the spring actuator against the spring provided on the other, and a hydraulic cylinder internally provided with a hydraulic piston.
  • a parking brake piston movably provided to the first caliper arm formed on the caliper body, and a spring for releasing the fluid pressure in the hydraulic pressure chamber formed between the hydraulic piston and the hydraulic cylinder And a transfer force transfer mechanism for transferring the transfer force of the push rod of the spring actuator to be pressurized to the parking brake piston.
  • this spring brake device it is possible to use common parts such as the first brake shoe and the second brake shoe for the caliper brake and the parking brake.
  • the present invention has been made in view of the above situation, and its object is to use common parts such as caliper arms and brake pads for service brakes and auxiliary brakes, and to mount auxiliary brakes such as parking mechanisms in a compact manner. It is an object of the present invention to provide a floating caliper type disc brake device that can be used.
  • a support a caliper body slidably supported by the support via a slide pin, a first caliper arm and a second caliper arm formed by straddling wheels on the caliper body, and
  • a floating caliper type disk brake device comprising: a first pressing mechanism and a second pressing mechanism provided in the brake disc holder of the first caliper arm.
  • the second pressing mechanism that can be used as an auxiliary brake, such as a parking brake, which is driven independently can be used as a first pressing as a service brake It is mounted on the control rod holder of the first caliper arm together with the mechanism. Therefore, the auxiliary brake can be mounted without changing the parts other than the control wheel holding portion (changes in the support assembly, caliper body assembly, etc.).
  • the disk brake device does not use a compression coil spring as a parking force generation mechanism, the auxiliary brake can be mounted in a lightweight and compact manner.
  • the second pressing mechanism holds the first brake disc slidably in the wheel rotational axis direction.
  • the first control wheel and the second control wheel which are formed long along the arc of the wheel circumferential direction, are used on both sides of the wheel during braking. Long longitudinal ends are slidably supported by holding members perpendicular to the side of the wheel so as to approach and depart parallel to the side. That is, the first control wheel is held slidably in the wheel rotational axis direction by the holding member as the anchor pin. Therefore, the second pressing mechanism is configured to drive the holding member, so that the first control wheel can be pressed in the wheel rotational axis direction.
  • the holding member is a wheel relative to an anchor block fixed to an end portion of the control wheel holding portion of the first caliper arm.
  • a floating caliper type disc brake device that is supported slidably in the rotational axis direction.
  • the holding member is supported as the anchor pin so as to be slidable in the wheel rotational axis direction with respect to the anchor block.
  • the anchor block is fixed to the end of the brake control holder of the first caliper arm.
  • Anchor pins are usually sub-assembled into anchor blocks. Therefore, sub-ASSY formation of the second pressing mechanism is similarly possible. Therefore, in this disc brake device, the second pressing mechanism is integrated into the anchor block ASSY, and the mounting is made the same size as the current product, so that it is possible to select the second pressing mechanism as required.
  • the first pressing mechanism is hydraulically driven and the second pressing mechanism is electrically driven.
  • Floating caliper type disc brake device Floating caliper type disc brake device.
  • the first pressing mechanism and the second pressing mechanism for independently driving the first control wheel toward the wheel by the hydraulic system device It operates independently in a separate system of a first pressing mechanism hydraulically driven and a second pressing mechanism electrically driven by the electric system device.
  • the risk that the first pressing mechanism and the second pressing mechanism simultaneously malfunction can be reduced, and the reliability of the braking mechanism can be improved.
  • the pressing member is a piston provided in a first pressing mechanism hydraulically driven as a service brake. Therefore, the second pressing mechanism originally originally drives the piston of the first pressing mechanism for pressing the first control wheel directly, thereby suppressing the generation of a moment or the like for the first control wheel, and the first pressing mechanism The same stable pressing force can be applied.
  • a floating caliper type disk brake device comprising: a nut axially slidably received; a screw having a tip end screwed to the nut; and a motor for rotationally driving the screw.
  • the screw when the motor is driven to rotate, the screw is rotated.
  • the screw rotates with respect to the nut accommodated non-rotatably relative to the holding member (anchor pin).
  • the nut held in a non-rotatable manner relative to the holding member slides in the wheel rotational axis direction by the rotation of the screw engaged therewith.
  • the holding member presses the first brake element toward the wheel.
  • the second pressing mechanism can not rotate relative to the pressing member having a bottomed cylindrical shape and the pressing member in the axial direction.
  • a floating caliper type disk brake device comprising: a nut slidably accommodated; a screw whose front end side is screwed into the nut; and a motor which rotationally drives the screw.
  • the screw when the motor is driven to rotate, the screw is rotated.
  • the screw rotates with respect to the nut housed non-rotatably relative to the pressing member (piston).
  • the nut held in a relatively non-rotatable manner by the pressing member slides in the wheel rotational axis direction by the rotation of the screw engaged therewith.
  • the pressing member presses the first brake element toward the wheel.
  • common parts such as caliper arms and brake pads can be used for the service brake and the auxiliary brake, and the auxiliary brake such as the parking mechanism can be compactly mounted.
  • FIG. 1 is a perspective view of a disc brake device according to a first embodiment of the present invention.
  • FIG. 2 is a side view of the disc brake device shown in FIG. 1 as viewed from the support side.
  • FIG. 3 is a side view in which a portion of the disc brake device shown in FIG. 1 is viewed from the side of the first brake shoe and the second brake shoe.
  • FIG. 4 is an enlarged view of an essential part of FIG. 5A is an exploded perspective view of the second pressing mechanism shown in FIG. 4 as viewed from the holding member side
  • FIG. 5B is an exploded perspective view of FIG. 5A as viewed from the opposite side. is there.
  • FIG. 6 is an exploded perspective view of the anchor block shown in FIG. FIG.
  • FIG. 7 is an exploded perspective view of the anchor block shown in FIG.
  • FIG. 8 is a perspective view of a disk brake device according to a second embodiment of the present invention as viewed from the first caliper arm side.
  • FIG. 9 is an exploded perspective view of the disk brake device shown in FIG. 8 as viewed from the second caliper arm side.
  • FIG. 10 is an exploded perspective view of the conventional anchor block shown in FIG.
  • FIG. 11 is an enlarged sectional view of an essential part of a disk brake device according to a third embodiment of the present invention.
  • FIG. 1 is a perspective view of a disc brake device 100 according to a first embodiment of the present invention
  • FIG. 2 is a side view of the disc brake device 100 shown in FIG. 1 viewed from the support 27 side
  • FIG. FIG. 4 is an enlarged view of an essential part of FIG. 3, in which a portion of the disc brake device 100 as viewed from the side of the first brake element 11 and the second brake element 13 is cut away.
  • the disc brake device 100 can be suitably used, for example, as a brake device of various industrial drive devices that generate a braking force to a rotating member such as an elevator.
  • the disk brake device 100 includes a support 15, a caliper body 17, a first caliper arm 19 and a second caliper arm 21, a first control wheel 11 and a second control wheel 13, and
  • the first pressing mechanism 23 and the second pressing mechanism 25 are included as main components.
  • the support 15 is supported by a support 27 coupled to a bogie frame (not shown).
  • the support 15 has an upper cylindrical support 29 and a lower cylindrical support 31.
  • the upper cylindrical support portion 29 and the lower cylindrical support portion 31 each include a slide pin 33.
  • the caliper body 17 is slidably supported by the support 15 via the slide pin 33 along the longitudinal direction (left and right direction in FIG. 2) of the slide pin 33. Furthermore, the caliper body 17 has a first caliper arm 19 and a second caliper arm 21.
  • the first caliper arm 19 and the second caliper arm 21 are formed on the caliper body 17 as parallel bifurcated arms so as to straddle the wheel 35.
  • Each base 37 of the first caliper arm 19 and the second caliper arm 21 is supported on one end side and the other end side of the upper and lower slide pins 33.
  • the first caliper arm 19 and the second caliper arm 21 serve as the control wheel holder 39 and the control wheel holder 41, respectively, on the opposite side of the base 37.
  • the first control wheel 11 and the second control wheel 13 are held by the control wheel holding portion 39 and the control wheel holding portion 41 of the first caliper arm 19 and the second caliper arm 21, respectively.
  • the first control wheel 11 and the second control wheel 13 are so-called brake pads, and the control wheel holding portion 39 and the control wheel holding portion 41 are opposed to the outer side surface of the disk rotor 36 attached to both side surfaces of the wheel 35. Attached to each.
  • a structure in which the lining surface of these brake pads presses the disc rotor 36 to perform a braking operation will be described as an example.
  • the disc brake device 100 may be configured to pinch the both sides of the wheel 35 directly for braking.
  • the first pressing mechanism 23 and the second pressing mechanism 25 independently drive the first control wheel 11 toward the wheel 35, the control wheel holding portion of the first caliper arm 19 39 is provided.
  • the first pressing mechanism 23 hydraulically drives the first brake element 11 toward the outer surface of the disk rotor 36 as in the conventional configuration.
  • the second pressing mechanism 25 is attached to the upper end and the lower end of the control / roller holding portion 39, respectively.
  • the second pressing mechanism 25 electrically drives the holding member 47 disposed at the end of the brake support portion 39 of the first caliper arm 19 to hold the first brake element 11 slidably in the wheel rotational axis direction. . That is, since the holding member 47 of the second pressing mechanism 25 in the first embodiment holds the first brake element 11 slidably in the wheel rotational axis direction, the upper and lower sides of the brake disc holding portion 39 in the first caliper arm 19 It is an anchor pin arrange
  • the holding member 47 is slidable along the wheel rotation axis direction with respect to anchor blocks 49 fixed to the upper and lower end portions of the brake pad holder 39 of the first caliper arm 19.
  • Anchor blocks 49 fixed to the upper and lower end portions of the brake pad holder 39 of the first caliper arm 19.
  • a normal anchor block 51 which does not constitute the second pressing mechanism 25 is provided at the upper and lower end portions of the brake pad holder 41 of the second caliper arm 21.
  • the second pressing mechanism 25 includes a bottomed cylindrical holding member 47, a nut 53 accommodated in the holding member so as not to be relatively rotatable and axially slidable, and a nut 53 at the tip end side. And a motor 57 for rotationally driving the screw 55 as main components.
  • FIG. 5A is an exploded perspective view of the second pressing mechanism 25 shown in FIG. 4 viewed from the holding member side
  • FIG. 5B is a view of the second pressing mechanism 25 shown in FIG. It is the disassembled perspective view which looked at a) from the other side.
  • the second pressing mechanism 25 of the first embodiment comprises a motor unit 59 and an anchor block 49.
  • the rotation of the drive shaft 58 of the motor 57 is decelerated by the reduction gear 61, and the motor unit 59 is output from the output shaft 63.
  • the motor unit 59 is integrally fixed to the anchor block 49 by the fixing screw 65.
  • the motor unit 59 is fixed to the anchor block 49 so as to be non-rotatably coupled to the screw 55 whose output shaft 63 is accommodated in the anchor block 49. That is, in the motor unit 59, the driving force of the motor 57 is input to the screw 55 in the anchor block 49 via the output shaft 63.
  • FIGS. 6 and 7 are an exploded perspective view of the anchor block 49 shown in (a) of FIG. 5, and FIG. 7 is an exploded perspective view of the anchor block 49 shown in (b) of FIG.
  • the anchor block 49 has a block body 67.
  • the block main body 67 bolt holes 71 for inserting a pair of bolts 69 for fixing to the brake pad holder 39 are bored.
  • the block main body 67 has a cylindrical portion 73 coaxially accommodating the holding member 47, the nut 53, the screw 55 and the like described above.
  • the anchor block 49 is provided in the cylindrical portion 73 from the side of the control rod holding portion 39, the holding member 47, the retaining ring 77, the heat shield plate 75, the boot 79, the washer 81, the retaining ring 83, the bush 85, the nut 53, the screw 55.
  • the thrust bearing 87, the O-ring 89, the bush 91, and the retaining ring 93 are coaxially accommodated.
  • the members such as the holding member 47, the nut 53, and the screw 55 are assembled as shown in FIG.
  • an adjuster mechanism 43 is provided between the pair of first pressing mechanisms 23 in the brake pad holder 39.
  • the adjuster mechanism 43 operates so as to keep the moving amount of the piston 45 which is a pressing member of the first pressing mechanism 23 constant when the linings of the first brake element 11 and the second brake element 13 wear out.
  • the first pressing mechanism 23 is hydraulically driven during normal braking.
  • the first pressing mechanism 23 When the first pressing mechanism 23 is driven, first, the outer surface of the disc rotor 36 of the opposing wheel 35 from the direction along the wheel rotation axis (simply referred to as the “wheel rotation axis direction”) of the first brake element 11 Press.
  • the first control wheel 11 which has pressed the disk rotor 36 of the wheel 35 receives a reaction force from the disk rotor 36.
  • the reaction force causes the caliper body 17 to move in the direction along the slide pin 33 via the brake control member holding portion 39 and the first caliper arm 19.
  • the second pressing mechanism 25 is electrically driven.
  • the second pressing mechanism 25 can be driven alone, but may be driven together with the first pressing mechanism 23.
  • the second pressing mechanism 25 provided in the brake pad holder 39 of the first caliper arm 19 rotates the motor 57 to rotate the screw 55.
  • the screw 55 rotates, the nut 53 moves along the axial direction of the screw 55 and presses the holding member 47 in the projecting direction.
  • the first brake element 11 presses the outer surface of the disc rotor 36 of the opposing wheel 35 in the wheel rotational axis direction.
  • the first control wheel 11 which has pressed the disk rotor 36 of the wheel 35 receives a reaction force from the disk rotor 36.
  • the wheel 35 is braked by being sandwiched between the first control wheel 11 and the second control wheel 13 from both sides in the wheel rotation axis direction.
  • the second pressing mechanism 25 usable as a parking brake driven independently is used together with the first pressing mechanism 23 usable as a service brake. Is mounted on the controller 37 of the controller. Therefore, it is possible to mount a parking brake (auxiliary brake) without changing parts other than the control wheel holding portion 39 (changing the support ASSY, the caliper body ASSY, etc.).
  • the parking brake can be mounted in a lightweight and compact manner.
  • the second pressing mechanism 25 can be used not only as a parking brake but also as an emergency brake (auxiliary brake) when a failure occurs in the first pressing mechanism 23 as a service brake.
  • the first brake element 11 and the second brake element 13 formed in a long shape along the arc of the wheel circumferential direction are side surfaces of both sides of the wheel 35 at the time of braking.
  • the long longitudinal direction both ends (upper and lower ends) are slidably supported by holding members 47 perpendicular to the side surface of the wheel 35 so as to approach and separate in parallel to the above. That is, the first control wheel 11 is slidably held in the wheel rotational axis direction by the holding member 47 as an anchor pin. Therefore, the second pressing mechanism 25 is configured to drive the holding member 47, so that the first control wheel 11 can be pressed in the wheel rotational axis direction.
  • the holding member 47 is supported as an anchor pin so as to be slidable in the wheel rotational axis direction with respect to the anchor block 49.
  • the anchor blocks 49 are fixed to the upper and lower ends of the control rod holder 39 of the first caliper arm 19.
  • the anchor pin 97 for holding the first brake element 11 slidably in the wheel rotational axis direction is usually sub-ASSY formed on the anchor block 95 (see FIGS. 9 and 10). Therefore, sub-ASSY formation of the second pressing mechanism 25 is also possible. Therefore, in the disc brake device 100, the second pressing mechanism 25 is integrated into the anchor block ASSY, and the mounting is made the same size as the current product, so that the second pressing mechanism 25 (parking brake) is selected as necessary. Is possible.
  • Examples of the selection of the parking brake include the presence or absence of the parking brake in caliper units, the necessary parking force, the parking method, and the coordinated operation with the service brake.
  • the first pressing mechanism 23 and the second pressing mechanism 25 for independently driving the first control wheel 11 toward the wheel 35 are hydraulic system devices.
  • the first pressing mechanism 23 hydraulically driven and the second pressing mechanism 25 electrically driven by the electric system device operate independently of each other. As a result, the risk of the first pressing mechanism 23 and the second pressing mechanism 25 simultaneously becoming inoperable can be reduced, and the reliability of the braking mechanism can be improved.
  • the screw 55 when the motor 57 is rotationally driven, the screw 55 is rotated.
  • the screw 55 rotates with respect to the nut 53 accommodated so as not to be rotatable relative to the holding member 47 (anchor pin).
  • the nut 53 held so as not to be relatively rotatable by the holding member 47 slides in the wheel rotational axis direction by the rotation of the screw 55 engaged with it.
  • the holding member 47 presses the first brake element 11 toward the wheel 35.
  • the simple pressing operation enables a reliable pressing operation.
  • the first control wheel 11 is on the side surface of the wheel 35. It can be approached and separated with high parallelism.
  • FIG. 8 is a perspective view of the disc brake device 200 according to the second embodiment of the present invention as viewed from the first caliper arm 19 side
  • FIG. 9 is a view of the disc brake device 200 shown in FIG. 8 as viewed from the second caliper arm 21 side. It is a disassembled perspective view.
  • the same components as those of the first embodiment are designated by the same reference numerals and their description will not be repeated.
  • one second pressing mechanism 25 is attached only to the upper end of the control / roller holding portion 39. That is, in the disc brake device 200, the second pressing mechanism 25 is not attached to the lower end of the control rod holder 39.
  • an anchor block 95 having a conventional structure provided with an anchor pin 97 is attached to the lower end of the control wheel holder 39.
  • the other configuration is the same as that of the disk brake device 100 of the first embodiment.
  • FIG. 10 is an exploded perspective view of the anchor block 95 of the conventional configuration shown in FIG.
  • the anchor block 95 restricts the movement of the wheel holding portion 39 in the wheel rotational direction, which occurs during braking.
  • the anchor block 95 has a block body 99.
  • bolt holes 71 for inserting a pair of bolts 69 for fixing to the brake disc holder holding portion 39 are bored.
  • the block main body 99 has a cylindrical portion 101 coaxially accommodating the anchor pin 97 and the like.
  • the anchor block 95 is, as shown in FIG. 10, in the cylindrical portion 101, from the side of the control rod holding portion, the anchor pin 97, the O ring 103, the retaining ring 105, the heat shield plate 107, the boot 109, the washer 111, the retaining ring A bush 115, a retaining ring 117, an O-ring 119, a closing plate 121, and a cap 123 are coaxially accommodated.
  • the disc brake device 200 since only one second pressing mechanism 25 is provided, the disc brake device 200 can be manufactured with a simple structure, light weight and low cost.
  • FIG. 11 is an enlarged sectional view of an essential part of a disc brake device 300 according to a third embodiment of the present invention.
  • the same components as those of the first embodiment are designated by the same reference numerals and their description will not be repeated.
  • the second pressing mechanism 125 electrically drives a piston 129 which is a pressing member of the first pressing mechanism 127 hydraulically driven. .
  • the second pressing mechanism 125 has a piston 129 which is a bottomed cylindrical pressing member, a nut 53 rotatably accommodated in the piston 129 in a relatively non-rotatable manner in the axial direction, and a nut 53 screwed on the tip side.
  • the screw 55 and a motor 57 for rotationally driving the screw 55 are provided as main components.
  • the piston of the first pressing mechanism 127 provided for hydraulically driving the first control wheel 11 is the second pressing mechanism 125 used as a parking mechanism. It electrically drives 129.
  • the motor unit 59 is attached to the rear (rightward in FIG. 11) of the first pressing mechanism 127 provided in the brake pad holder 39.
  • the motor unit 59 of the third embodiment is integrally fixed to the brake control member holding portion 39.
  • the motor unit 59 is fixed to the brake control member holding portion 39 so as to be connected to the screw 55 in which the output shaft 63 is accommodated in the cylinder portion 40 of the brake control member holding portion 39 relatively non-rotatably. That is, in the motor unit 59, the driving force of the motor 57 is input to the screw 55 in the cylinder unit 40 via the output shaft 63.
  • the screw 55 when the motor 57 is rotationally driven, the screw 55 is rotated.
  • the screw 55 rotates with respect to the nut 53 housed non-rotatably with respect to the piston 129.
  • the nut 53 held so as not to be relatively rotatable to the piston 129 slides in the wheel rotational axis direction by the rotation of the screw 55 engaged with it.
  • the piston 129 presses the first brake element 11 toward the wheel 35 by the sliding of the nut 53 in the wheel rotational axis direction.
  • the second pressing mechanism 125 used as an auxiliary brake such as a parking brake or an emergency brake is basically operated directly by directly driving the piston 129 of the first pressing mechanism 127 that presses the first control wheel 11.
  • the generation of a moment or the like with respect to the one control wheel 11 is suppressed, and a stable pressing force equivalent to that of the normal first pressing mechanism 23 can be applied.
  • the first caliper arm 19 and the second caliper arm 21, the first control wheel 11 and the second control wheel 13 are used as service brakes and auxiliary brakes. And other common parts can be used, and an auxiliary brake such as a parking mechanism can be mounted compactly.
  • a floating caliper type disc brake device (100, 200, 300) comprising: (23, 127) and a second pressing mechanism (25, 125).
  • a floating caliper type disk brake device according to the above [4], which A floating caliper type disk brake device (300), wherein the second pressing mechanism (125) drives a pressing member (piston 129) of the first pressing mechanism (127) hydraulically driven.
  • the floating caliper type disk brake device according to [2] or [3] above, The second pressing mechanism (25) The bottomed cylindrical holding member (47); A nut (53) accommodated in the holding member (47) so as to be relatively non-rotatable and axially slidable; A screw (55) whose tip end is screwed to the nut (53); A floating caliper type disc brake device (100, 200), comprising: a motor (57) for rotationally driving the screw (55).
  • the present invention is not limited to the embodiments described above, and appropriate modifications, improvements, etc. are possible.
  • the material, shape, size, number, arrangement location, and the like of each component in the embodiment described above are arbitrary and not limited as long as the present invention can be achieved.
  • the present application is based on Japanese Patent Application (Japanese Patent Application No. 2017-197007) filed on October 10, 2017, the contents of which are incorporated herein by reference.
  • the floating caliper type disk brake device of the present invention it is possible to use common parts such as caliper arms and brake pads for the service brake and the auxiliary brake, and to mount the auxiliary brake such as the parking mechanism compactly. it can.

Abstract

A floating caliper disc brake device (100) comprising: a caliper body (17) slidably supported on a support body (15) via slide pins (33); a first caliper arm (19) and a second caliper arm formed on the caliper body (17) and straddling the wheel; a first brake shoe (11) and a second brake shoe (13) held respectively in brake shoe holding parts (39, 41) of the first caliper arm (19) and the second caliper arm; and first pressing mechanisms (23) and second pressing mechanisms (25) provided on the brake shoe holding part (39) of the first caliper arm (19) for independently driving the first brake shoe (11) toward the wheel.

Description

フローティングキャリパタイプのディスクブレーキ装置Floating caliper type disc brake device
　本発明は、フローティングキャリパタイプのディスクブレーキ装置に関する。 The present invention relates to a floating caliper type disk brake device.
　通常のフローティングタイプのキャリパブレーキ（サービスブレーキ）のキャリパボディに、パーキングブレーキ（補助ブレーキ）を一体に組み込んだスプリングブレーキ装置が知られている（特許文献１参照）。
　このスプリングブレーキ装置は、支持体と、支持体に２本のスライドピンを介して摺動自在に支持されたキャリパボディと、キャリパボディに車輪を跨いで形成された第１及び第２のキャリパアームと、第１のキャリパアームに装備されたキャリパブレーキ用シリンダと、第１及び第２のキャリパアームに保持された第１及び第２の制輪子と、を備える。更に、キャリパボディには、テコ式のパーキング機構が設けられる。 There is known a spring brake device in which a parking brake (auxiliary brake) is integrated with a caliper body of a normal floating type caliper brake (service brake) (see Patent Document 1).
The spring brake device includes a support, a caliper body slidably supported by the support via two slide pins, and first and second caliper arms formed by straddling wheels on the caliper body. And a caliper brake cylinder mounted on the first caliper arm, and first and second control wheels held by the first and second caliper arms. Furthermore, the caliper body is provided with a lever type parking mechanism.
　上記パーキング機構は、キャリパボディに固定されたスプリングアクチュエータと、スプリングアクチュエータの一方に備えたスプリングに抗して他方に配設された液圧ピストンと、液圧ピストンを内部に備える液圧シリンダと、キャリパボディに形成された第１のキャリパアームに移動自在に設けられたパーキングブレーキ用ピストンと、液圧ピストンと液圧シリンダの間に形成された液圧室の流体圧を解放する時はスプリングで加圧されるスプリングアクチュエータのプッシュロッドの移動力をパーキングブレーキ用ピストンに伝達する移動力伝達機構とを備えている。 The parking mechanism includes a spring actuator fixed to the caliper body, a hydraulic piston disposed on the other of the spring actuator against the spring provided on the other, and a hydraulic cylinder internally provided with a hydraulic piston. A parking brake piston movably provided to the first caliper arm formed on the caliper body, and a spring for releasing the fluid pressure in the hydraulic pressure chamber formed between the hydraulic piston and the hydraulic cylinder And a transfer force transfer mechanism for transferring the transfer force of the push rod of the spring actuator to be pressurized to the parking brake piston.
　上述のスプリングブレーキ装置は、キャリパブレーキによる車輪の制動を解除した状態において、流体圧シリンダの流体圧を解放すると、付勢機構である圧縮コイルスプリングの付勢力により、プッシュロッドがスプリングアクチュエータの外部に向って伸長する。プッシュロッドの伸長は、移動力伝達機構であるレバーの一端部を押出する。この押出によりレバーは揺動し、他端部がキャリパボディに組み込んだパーキングブレーキ用ピストンを車輪の内側に取付けたインナロータに向って押込む。その結果、車輪は、スプリングブレーキ装置のキャリパボディに組み込んだパーキングブレーキにより制動される。 In the above-described spring brake device, when the fluid pressure of the fluid pressure cylinder is released in a state where the wheel brake is released by the caliper brake, the push rod is moved to the outside of the spring actuator by the biasing force of the compression coil spring which is a biasing mechanism. It will extend toward you. The extension of the push rod pushes out one end of a lever which is a moving force transmission mechanism. By this extrusion, the lever pivots, and the other end pushes the parking brake piston incorporated in the caliper body toward the inner rotor mounted on the inside of the wheel. As a result, the wheel is braked by the parking brake incorporated in the caliper body of the spring brake device.
　このスプリングブレーキ装置によれば、キャリパブレーキとパーキングブレーキに第１の制輪子及び第２の制輪子等の共用の部品を使用することができる。 According to this spring brake device, it is possible to use common parts such as the first brake shoe and the second brake shoe for the caliper brake and the parking brake.
日本国特開２００３－１９４１１１号公報Japanese Patent Application Laid-Open No. 2003-194111
　しかしながら、上述のスプリングブレーキ装置のように駐車時のパーキング力の発生機構として圧縮コイルスプリングを用いる場合、通常走行時のスプリング解除機構の設置等が必要となり、パーキング機構が肥大化してしまう。また、鉄道用キャリパのようにバッククリアランスを両側で６ｍｍ程度と広く設定する場合、圧縮コイルスプリングのバネ定数変化等を考慮すると、圧縮コイルスプリングの設置スペースを大きく確保する必要があり、これによってもパーキング機構が肥大化してしまう。
　また、上述のスプリングブレーキ装置においては、キャリパブレーキとパーキングブレーキにキャリパボディやキャリパアームの共用の部品を使用することができなかった。 However, in the case of using a compression coil spring as a mechanism for generating parking force at parking as in the above-described spring brake device, installation of a spring release mechanism at the time of normal traveling or the like is required, and the parking mechanism is enlarged. In addition, when the back clearance is set as wide as about 6 mm on both sides as in the case of railway calipers, it is necessary to secure a large installation space for the compression coil spring in consideration of the change in the spring constant of the compression coil spring. The parking mechanism is enlarged.
Moreover, in the above-mentioned spring brake device, it was not possible to use a common part of the caliper body and the caliper arm for the caliper brake and the parking brake.
　本発明は上記状況に鑑みてなされたもので、その目的は、サービスブレーキと補助ブレーキにキャリパアームや制輪子等の共用の部品を使用することができ、コンパクトにパーキング機構等の補助ブレーキが搭載できるフローティングキャリパタイプのディスクブレーキ装置を提供することにある。 The present invention has been made in view of the above situation, and its object is to use common parts such as caliper arms and brake pads for service brakes and auxiliary brakes, and to mount auxiliary brakes such as parking mechanisms in a compact manner. It is an object of the present invention to provide a floating caliper type disc brake device that can be used.
　本発明に係る上記目的は、下記構成により達成される。
（１）　支持体と、前記支持体にスライドピンを介して摺動自在に支持されたキャリパボディと、前記キャリパボディに車輪を跨いで形成された第１キャリパアーム及び第２キャリパアームと、前記第１キャリパアーム及び前記第２キャリパアームの制輪子保持部にそれぞれ保持された第１制輪子及び第２制輪子と、前記第１制輪子を前記車輪に向けてそれぞれ独立して駆動するために前記第１キャリパアームの前記制輪子保持部に設けられた第１押圧機構及び第２押圧機構と、を備える、フローティングキャリパタイプのディスクブレーキ装置。 The above object of the present invention is achieved by the following constitution.
(1) A support, a caliper body slidably supported by the support via a slide pin, a first caliper arm and a second caliper arm formed by straddling wheels on the caliper body, and In order to independently drive the first control wheel and the second control wheel held by the control wheel holder of the first caliper arm and the second caliper arm and the first control wheel respectively toward the wheel A floating caliper type disk brake device comprising: a first pressing mechanism and a second pressing mechanism provided in the brake disc holder of the first caliper arm.
　上記（１）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、独立して駆動される例えばパーキングブレーキ等の補助ブレーキとして使用可能な第２押圧機構が、サービスブレーキとして使用可能な第１押圧機構と伴に第１キャリパアームの制輪子保持部に搭載される。そこで、制輪子保持部以外の部品変更（サポートＡＳＳＹ、キャリパボディＡＳＳＹ等の変更）を行わずに、補助ブレーキの搭載が可能になる。また、このディスクブレーキ装置は、パーキング力の発生機構として圧縮コイルスプリングを用いないため軽量、コンパクトに補助ブレーキが搭載できる。 According to the floating caliper type disk brake device of the above configuration (1), the second pressing mechanism that can be used as an auxiliary brake, such as a parking brake, which is driven independently can be used as a first pressing as a service brake It is mounted on the control rod holder of the first caliper arm together with the mechanism. Therefore, the auxiliary brake can be mounted without changing the parts other than the control wheel holding portion (changes in the support assembly, caliper body assembly, etc.). In addition, since the disk brake device does not use a compression coil spring as a parking force generation mechanism, the auxiliary brake can be mounted in a lightweight and compact manner.
（２）　上記（１）に記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記第２押圧機構が、前記第１制輪子を車輪回転軸方向に摺動自在に保持するため前記第１キャリパアームにおける前記制輪子保持部の端部に配置された保持部材を駆動する、フローティングキャリパタイプのディスクブレーキ装置。 (2) In the floating caliper type disk brake device according to (1), the second pressing mechanism holds the first brake disc slidably in the wheel rotational axis direction. A floating caliper type disk brake device for driving a holding member arranged at an end of the wheel holding portion of an arm.
　上記（２）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、車輪周方向の円弧に沿って長尺で形成された第１制輪子及び第２制輪子は、制動時、車輪の両側の側面に対して平行に接近離反するように、長尺の長手方向両端が、車輪の側面に垂直な保持部材により摺動自在に支持される。即ち、第１制輪子は、アンカーピンとしての保持部材により車輪回転軸方向に摺動自在に保持される。そこで、第２押圧機構は、この保持部材を駆動するように構成されたことにより、第１制輪子を車輪回転軸方向から押圧することができる。 According to the floating caliper type disk brake device of the configuration of the above (2), the first control wheel and the second control wheel, which are formed long along the arc of the wheel circumferential direction, are used on both sides of the wheel during braking. Long longitudinal ends are slidably supported by holding members perpendicular to the side of the wheel so as to approach and depart parallel to the side. That is, the first control wheel is held slidably in the wheel rotational axis direction by the holding member as the anchor pin. Therefore, the second pressing mechanism is configured to drive the holding member, so that the first control wheel can be pressed in the wheel rotational axis direction.
（３）　上記（２）に記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記保持部材が、前記第１キャリパアームの前記制輪子保持部の端部に固定されたアンカブロックに対して車輪回転軸方向に摺動自在に支持された、フローティングキャリパタイプのディスクブレーキ装置。 (3) In the floating caliper type disk brake device according to the above (2), the holding member is a wheel relative to an anchor block fixed to an end portion of the control wheel holding portion of the first caliper arm. A floating caliper type disc brake device that is supported slidably in the rotational axis direction.
　上記（３）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、保持部材が、アンカーピンとしてアンカブロックに対して車輪回転軸方向に摺動自在に支持される。アンカブロックは、第１キャリパアームにおける制輪子保持部の端部に固定される。アンカーピンは、通常、アンカブロックにサブＡＳＳＹ化されている。そこで、第２押圧機構のサブＡＳＳＹ化も同様に可能となる。従って、このディスクブレーキ装置では、第２押圧機構がアンカブロックＡＳＳＹに集約され、取付けが現行品と同寸法とされることで、必要に応じた第２押圧機構の選定が可能となる。 According to the floating caliper type disk brake device of the above configuration (3), the holding member is supported as the anchor pin so as to be slidable in the wheel rotational axis direction with respect to the anchor block. The anchor block is fixed to the end of the brake control holder of the first caliper arm. Anchor pins are usually sub-assembled into anchor blocks. Therefore, sub-ASSY formation of the second pressing mechanism is similarly possible. Therefore, in this disc brake device, the second pressing mechanism is integrated into the anchor block ASSY, and the mounting is made the same size as the current product, so that it is possible to select the second pressing mechanism as required.
（４）　上記（１）～（３）の何れか１つに記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記第１押圧機構が油圧駆動され、前記第２押圧機構が電気駆動される、フローティングキャリパタイプのディスクブレーキ装置。 (4) In the floating caliper type disk brake device according to any one of (1) to (3), the first pressing mechanism is hydraulically driven and the second pressing mechanism is electrically driven. , Floating caliper type disc brake device.
　上記（４）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、第１制輪子を車輪に向けてそれぞれ独立して駆動するための第１押圧機構及び第２押圧機構が、油圧系装置により油圧駆動される第１押圧機構と、電気系装置により電気駆動される第２押圧機構との別系統で独立に作動される。これにより、第１押圧機構と第２押圧機構とが、同時に作動不良となるリスクを低減させ、制動機構の信頼性を向上させることができる。 According to the floating caliper type disk brake device of the configuration of (4) above, the first pressing mechanism and the second pressing mechanism for independently driving the first control wheel toward the wheel by the hydraulic system device It operates independently in a separate system of a first pressing mechanism hydraulically driven and a second pressing mechanism electrically driven by the electric system device. As a result, the risk that the first pressing mechanism and the second pressing mechanism simultaneously malfunction can be reduced, and the reliability of the braking mechanism can be improved.
（５）　上記（４）に記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記第２押圧機構が、油圧駆動される前記第１押圧機構の押圧部材を駆動する、フローティングキャリパタイプのディスクブレーキ装置。 (5) The floating caliper type disk brake device according to (4), wherein the second pressing mechanism drives a pressing member of the first pressing mechanism that is hydraulically driven. apparatus.
　上記（５）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、例えば補助ブレーキとして用いられる第２押圧機構が、本来、第１制輪子を押圧駆動するために設けられている第１押圧機構の押圧部材を駆動する。具体的には、この押圧部材は、サービスブレーキとして油圧駆動される第１押圧機構に設けられているピストンである。従って、第２押圧機構は、本来、第１制輪子を押圧する第１押圧機構のピストンをダイレクトに駆動することにより、第１制輪子に対するモーメント等の発生が抑制された、第１押圧機構と同等の安定した押圧力を印加することができる。 According to the floating caliper type disk brake device of the above configuration (5), for example, the first pressing mechanism in which the second pressing mechanism used as the auxiliary brake is originally provided to press and drive the first control wheel. Drive the pressing member. Specifically, the pressing member is a piston provided in a first pressing mechanism hydraulically driven as a service brake. Therefore, the second pressing mechanism originally originally drives the piston of the first pressing mechanism for pressing the first control wheel directly, thereby suppressing the generation of a moment or the like for the first control wheel, and the first pressing mechanism The same stable pressing force can be applied.
（６）　上記（２）または（３）に記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記第２押圧機構が、有底筒状の前記保持部材と、前記保持部材内に相対回転不能かつ軸方向に摺動自在に収容されたナットと、先端側が前記ナットに螺合されたスクリューと、前記スクリューを回転駆動するモータと、を備える、フローティングキャリパタイプのディスクブレーキ装置。 (6) In the floating caliper type disk brake device according to (2) or (3), the second pressing mechanism can not rotate relative to the bottomed cylindrical holding member and the holding member. A floating caliper type disk brake device comprising: a nut axially slidably received; a screw having a tip end screwed to the nut; and a motor for rotationally driving the screw.
　上記（６）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、モータが回転駆動されると、スクリューが回転する。スクリューは、保持部材（アンカーピン）に対して相対回転不能に収容されたナットに対して回転する。保持部材に相対回転不能に保持されたナットは、螺合するスクリューが回転することにより、車輪回転軸方向に摺動する。このナットの車輪回転軸方向の摺動により、保持部材が第１制輪子を車輪に向けて押圧する。 According to the floating caliper type disk brake device of the above configuration (6), when the motor is driven to rotate, the screw is rotated. The screw rotates with respect to the nut accommodated non-rotatably relative to the holding member (anchor pin). The nut held in a non-rotatable manner relative to the holding member slides in the wheel rotational axis direction by the rotation of the screw engaged therewith. By the sliding of the nut in the wheel rotational axis direction, the holding member presses the first brake element toward the wheel.
（７）　上記（５）に記載のフローティングキャリパタイプのディスクブレーキ装置であって、前記第２押圧機構が、有底筒状の前記押圧部材と、前記押圧部材内に相対回転不能かつ軸方向に摺動自在に収容されたナットと、先端側が前記ナットに螺合されたスクリューと、前記スクリューを回転駆動するモータと、を備える、フローティングキャリパタイプのディスクブレーキ装置。 (7) In the floating caliper type disk brake device according to (5), the second pressing mechanism can not rotate relative to the pressing member having a bottomed cylindrical shape and the pressing member in the axial direction. A floating caliper type disk brake device comprising: a nut slidably accommodated; a screw whose front end side is screwed into the nut; and a motor which rotationally drives the screw.
　上記（７）の構成のフローティングキャリパタイプのディスクブレーキ装置によれば、モータが回転駆動されると、スクリューが回転する。スクリューは、押圧部材（ピストン）に対して相対回転不能に収容されたナットに対して回転する。押圧部材に相対回転不能に保持されたナットは、螺合するスクリューが回転することにより、車輪回転軸方向に摺動する。このナットの車輪回転軸方向の摺動により、押圧部材が第１制輪子を車輪に向けて押圧する。 According to the floating caliper type disk brake device of the above configuration (7), when the motor is driven to rotate, the screw is rotated. The screw rotates with respect to the nut housed non-rotatably relative to the pressing member (piston). The nut held in a relatively non-rotatable manner by the pressing member slides in the wheel rotational axis direction by the rotation of the screw engaged therewith. By the sliding of the nut in the wheel rotational axis direction, the pressing member presses the first brake element toward the wheel.
　本発明に係るフローティングキャリパタイプのディスクブレーキ装置によれば、サービスブレーキと補助ブレーキにキャリパアームや制輪子等の共用の部品を使用することができ、コンパクトにパーキング機構等の補助ブレーキが搭載できる。 According to the floating caliper type disk brake device according to the present invention, common parts such as caliper arms and brake pads can be used for the service brake and the auxiliary brake, and the auxiliary brake such as the parking mechanism can be compactly mounted.
　以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the modes for carrying out the invention described below (hereinafter referred to as "embodiments") with reference to the attached drawings. .
図１は、本発明の第１実施形態に係るディスクブレーキ装置の斜視図である。FIG. 1 is a perspective view of a disc brake device according to a first embodiment of the present invention. 図２は、図１に示したディスクブレーキ装置をサポート側から見た側面図である。FIG. 2 is a side view of the disc brake device shown in FIG. 1 as viewed from the support side. 図３は、図１に示したディスクブレーキ装置を第１制輪子及び第２制輪子の側から見た一部分を切り欠いた側面図である。FIG. 3 is a side view in which a portion of the disc brake device shown in FIG. 1 is viewed from the side of the first brake shoe and the second brake shoe. 図４は、図３の要部拡大図である。FIG. 4 is an enlarged view of an essential part of FIG. 図５の（ａ）は図４に示した第２押圧機構を保持部材側から見た分解斜視図、図５の（ｂ）は図５の（ａ）を反対側から見た分解斜視図である。5A is an exploded perspective view of the second pressing mechanism shown in FIG. 4 as viewed from the holding member side, and FIG. 5B is an exploded perspective view of FIG. 5A as viewed from the opposite side. is there. 図６は、図５の（ａ）に示したアンカブロックの分解斜視図である。FIG. 6 is an exploded perspective view of the anchor block shown in FIG. 図７は、図５の（ｂ）に示したアンカブロックの分解斜視図である。FIG. 7 is an exploded perspective view of the anchor block shown in FIG. 図８は、本発明の第２実施形態に係るディスクブレーキ装置を第１キャリパアーム側から見た斜視図である。FIG. 8 is a perspective view of a disk brake device according to a second embodiment of the present invention as viewed from the first caliper arm side. 図９は、図８に示したディスクブレーキ装置を第２キャリパアーム側から見た分解斜視図である。FIG. 9 is an exploded perspective view of the disk brake device shown in FIG. 8 as viewed from the second caliper arm side. 図１０は、図９に示した従来構成のアンカブロックの分解斜視図である。FIG. 10 is an exploded perspective view of the conventional anchor block shown in FIG. 図１１は、本発明の第３実施形態に係るディスクブレーキ装置の要部拡大断面図である。FIG. 11 is an enlarged sectional view of an essential part of a disk brake device according to a third embodiment of the present invention.
　以下、本発明に係る実施形態を図面を参照して説明する。
［第１実施形態］
　先ず、第１実施形態を説明する。
　図１は本発明の第１実施形態に係るディスクブレーキ装置１００の斜視図、図２は図１に示したディスクブレーキ装置１００をサポート２７側から見た側面図、図３は図１に示したディスクブレーキ装置１００を第１制輪子１１及び第２制輪子１３の側から見た一部分を切り欠いた側面図、図４は図３の要部拡大図である。
　本発明の第１実施形態に係るフローティングキャリパタイプのディスクブレーキ装置１００が、鉄道車両用ディスクブレーキに用いられる場合を例に説明する。この他、ディスクブレーキ装置１００は、例えばエレベータ等、回転部材に対して制動力を発生させる種々の産業用駆動装置のブレーキ装置にも好適に用いることができるものである。 Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
First Embodiment
First, the first embodiment will be described.
1 is a perspective view of a disc brake device 100 according to a first embodiment of the present invention, FIG. 2 is a side view of the disc brake device 100 shown in FIG. 1 viewed from the support 27 side, and FIG. FIG. 4 is an enlarged view of an essential part of FIG. 3, in which a portion of the disc brake device 100 as viewed from the side of the first brake element 11 and the second brake element 13 is cut away.
The case where the floating caliper type disk brake device 100 according to the first embodiment of the present invention is used for a railway vehicle disk brake will be described as an example. In addition to this, the disc brake device 100 can be suitably used, for example, as a brake device of various industrial drive devices that generate a braking force to a rotating member such as an elevator.
　本第１実施形態に係るディスクブレーキ装置１００は、支持体１５と、キャリパボディ１７と、第１キャリパアーム１９及び第２キャリパアーム２１と、第１制輪子１１及び第２制輪子１３と、第１押圧機構２３及び第２押圧機構２５と、を主要な構成部材として有する。 The disk brake device 100 according to the first embodiment includes a support 15, a caliper body 17, a first caliper arm 19 and a second caliper arm 21, a first control wheel 11 and a second control wheel 13, and The first pressing mechanism 23 and the second pressing mechanism 25 are included as main components.
　支持体１５は、図示しない台車枠に結合されたサポート２７に支持される。支持体１５は、上段筒状支持部２９及び下段筒状支持部３１を有する。上段筒状支持部２９及び下段筒状支持部３１は、それぞれがスライドピン３３を備える。 The support 15 is supported by a support 27 coupled to a bogie frame (not shown). The support 15 has an upper cylindrical support 29 and a lower cylindrical support 31. The upper cylindrical support portion 29 and the lower cylindrical support portion 31 each include a slide pin 33.
　キャリパボディ１７は、支持体１５にスライドピン３３を介して、スライドピン３３の長手方向（図２の左右方向）に沿って摺動自在に支持される。更に、キャリパボディ１７は、第１キャリパアーム１９及び第２キャリパアーム２１を有する。 The caliper body 17 is slidably supported by the support 15 via the slide pin 33 along the longitudinal direction (left and right direction in FIG. 2) of the slide pin 33. Furthermore, the caliper body 17 has a first caliper arm 19 and a second caliper arm 21.
　第１キャリパアーム１９及び第２キャリパアーム２１は、車輪３５を跨ぐように、それぞれ平行な二股の腕部としてキャリパボディ１７に形成される。第１キャリパアーム１９及び第２キャリパアーム２１は、それぞれの基部３７が、上下一対のスライドピン３３の一端側と、他端側とに支持される。第１キャリパアーム１９及び第２キャリパアーム２１は、基部３７の反対側がそれぞれ制輪子保持部３９及び制輪子保持部４１となる。 The first caliper arm 19 and the second caliper arm 21 are formed on the caliper body 17 as parallel bifurcated arms so as to straddle the wheel 35. Each base 37 of the first caliper arm 19 and the second caliper arm 21 is supported on one end side and the other end side of the upper and lower slide pins 33. The first caliper arm 19 and the second caliper arm 21 serve as the control wheel holder 39 and the control wheel holder 41, respectively, on the opposite side of the base 37.
　第１制輪子１１及び第２制輪子１３は、第１キャリパアーム１９及び第２キャリパアーム２１の制輪子保持部３９及び制輪子保持部４１にそれぞれ保持される。第１制輪子１１及び第２制輪子１３は、所謂ブレーキパッドであり、車輪３５の両側面に取り付けられたディスクロータ３６の外側面に対向するように制輪子保持部３９及び制輪子保持部４１にそれぞれ取り付けられる。なお、本第１実施形態では、これらブレーキパッドのライニング面が、ディスクロータ３６を押圧してブレーキ動作を行う構造を例に説明する。勿論、ディスクブレーキ装置１００は、車輪３５の両側面を直接挟圧して制動する構成であってもよい。 The first control wheel 11 and the second control wheel 13 are held by the control wheel holding portion 39 and the control wheel holding portion 41 of the first caliper arm 19 and the second caliper arm 21, respectively. The first control wheel 11 and the second control wheel 13 are so-called brake pads, and the control wheel holding portion 39 and the control wheel holding portion 41 are opposed to the outer side surface of the disk rotor 36 attached to both side surfaces of the wheel 35. Attached to each. In the first embodiment, a structure in which the lining surface of these brake pads presses the disc rotor 36 to perform a braking operation will be described as an example. Of course, the disc brake device 100 may be configured to pinch the both sides of the wheel 35 directly for braking.
　本第１実施形態に係る第１押圧機構２３及び第２押圧機構２５は、第１制輪子１１を車輪３５に向けてそれぞれ独立して駆動するために、第１キャリパアーム１９の制輪子保持部３９に設けられている。
　第１押圧機構２３は、従来構成と同様に、第１制輪子１１をディスクロータ３６の外側面に向けて油圧駆動するものである。 Since the first pressing mechanism 23 and the second pressing mechanism 25 according to the first embodiment independently drive the first control wheel 11 toward the wheel 35, the control wheel holding portion of the first caliper arm 19 39 is provided.
The first pressing mechanism 23 hydraulically drives the first brake element 11 toward the outer surface of the disk rotor 36 as in the conventional configuration.
　第２押圧機構２５は、本第１実施形態において、制輪子保持部３９の上端と下端のそれぞれに取り付けられる。第２押圧機構２５は、第１制輪子１１を車輪回転軸方向に摺動自在に保持するため第１キャリパアーム１９における制輪子保持部３９の端部に配置された保持部材４７を電気駆動する。即ち、本第１実施形態における第２押圧機構２５の保持部材４７は、第１制輪子１１を車輪回転軸方向に摺動自在に保持するため第１キャリパアーム１９における制輪子保持部３９の上下両端部に配置されたアンカーピンである。 In the first embodiment, the second pressing mechanism 25 is attached to the upper end and the lower end of the control / roller holding portion 39, respectively. The second pressing mechanism 25 electrically drives the holding member 47 disposed at the end of the brake support portion 39 of the first caliper arm 19 to hold the first brake element 11 slidably in the wheel rotational axis direction. . That is, since the holding member 47 of the second pressing mechanism 25 in the first embodiment holds the first brake element 11 slidably in the wheel rotational axis direction, the upper and lower sides of the brake disc holding portion 39 in the first caliper arm 19 It is an anchor pin arrange | positioned at both ends.
　図３及び図４に示すように、保持部材４７は、第１キャリパアーム１９の制輪子保持部３９の上下両端部に固定されたアンカブロック４９に対して車輪回転軸方向に沿って摺動自在に支持される。なお、第２キャリパアーム２１の制輪子保持部４１の上下両端部には、第２押圧機構２５を構成しない通常のアンカブロック５１が設けられる。 As shown in FIGS. 3 and 4, the holding member 47 is slidable along the wheel rotation axis direction with respect to anchor blocks 49 fixed to the upper and lower end portions of the brake pad holder 39 of the first caliper arm 19. Supported by A normal anchor block 51 which does not constitute the second pressing mechanism 25 is provided at the upper and lower end portions of the brake pad holder 41 of the second caliper arm 21.
　本第１実施形態に係る第２押圧機構２５は、有底筒状の保持部材４７と、保持部材内に相対回転不能かつ軸方向に摺動自在に収容されたナット５３と、先端側がナット５３に螺合されたスクリュー５５と、スクリュー５５を回転駆動するモータ５７と、を主要な構成部材として備える。 The second pressing mechanism 25 according to the first embodiment includes a bottomed cylindrical holding member 47, a nut 53 accommodated in the holding member so as not to be relatively rotatable and axially slidable, and a nut 53 at the tip end side. And a motor 57 for rotationally driving the screw 55 as main components.
　図５の（ａ）は図４に示した第２押圧機構２５を保持部材側から見た分解斜視図、図５の（ｂ）は図４に示した第２押圧機構２５を図５の（ａ）を反対側から見た分解斜視図である。
　本第１実施形態の第２押圧機構２５は、モータユニット５９と、アンカブロック４９とからなる。モータユニット５９は、モータ５７の駆動軸５８の回転が減速機６１により減速されて、出力軸６３から出力される。モータユニット５９は、固定ネジ６５によりアンカブロック４９と一体固定される。モータユニット５９は、アンカブロック４９に固定されることにより、出力軸６３がアンカブロック４９内に収容されたスクリュー５５に、相対回転不能に連結される。即ち、モータユニット５９は、モータ５７の駆動力が、出力軸６３を介してアンカブロック４９内のスクリュー５５に入力される。 5A is an exploded perspective view of the second pressing mechanism 25 shown in FIG. 4 viewed from the holding member side, and FIG. 5B is a view of the second pressing mechanism 25 shown in FIG. It is the disassembled perspective view which looked at a) from the other side.
The second pressing mechanism 25 of the first embodiment comprises a motor unit 59 and an anchor block 49. The rotation of the drive shaft 58 of the motor 57 is decelerated by the reduction gear 61, and the motor unit 59 is output from the output shaft 63. The motor unit 59 is integrally fixed to the anchor block 49 by the fixing screw 65. The motor unit 59 is fixed to the anchor block 49 so as to be non-rotatably coupled to the screw 55 whose output shaft 63 is accommodated in the anchor block 49. That is, in the motor unit 59, the driving force of the motor 57 is input to the screw 55 in the anchor block 49 via the output shaft 63.
　図６は図５の（ａ）に示したアンカブロック４９の分解斜視図、図７は図５の（ｂ）に示したアンカブロック４９の分解斜視図である。
　図６及び図７に示すように、アンカブロック４９は、ブロック本体６７を有する。ブロック本体６７には、制輪子保持部３９に固定するための一対のボルト６９を挿通するためのボルト穴７１が穿設される。また、ブロック本体６７は、上述の保持部材４７、ナット５３、スクリュー５５等を同軸に収容する円筒部７３を有する。 6 is an exploded perspective view of the anchor block 49 shown in (a) of FIG. 5, and FIG. 7 is an exploded perspective view of the anchor block 49 shown in (b) of FIG.
As shown in FIGS. 6 and 7, the anchor block 49 has a block body 67. In the block main body 67, bolt holes 71 for inserting a pair of bolts 69 for fixing to the brake pad holder 39 are bored. Further, the block main body 67 has a cylindrical portion 73 coaxially accommodating the holding member 47, the nut 53, the screw 55 and the like described above.
　アンカブロック４９は、円筒部７３内に、制輪子保持部３９側から、保持部材４７、止め輪７７、遮熱板７５、ブーツ７９、ワッシャ８１、止め輪８３、ブッシュ８５、ナット５３、スクリュー５５、スラストベアリング８７、Ｏリング８９、ブッシュ９１、止め輪９３が同軸に収容されている。これら保持部材４７、ナット５３、スクリュー５５等の諸部材は、図４に示すように組み付けられる。 The anchor block 49 is provided in the cylindrical portion 73 from the side of the control rod holding portion 39, the holding member 47, the retaining ring 77, the heat shield plate 75, the boot 79, the washer 81, the retaining ring 83, the bush 85, the nut 53, the screw 55. The thrust bearing 87, the O-ring 89, the bush 91, and the retaining ring 93 are coaxially accommodated. The members such as the holding member 47, the nut 53, and the screw 55 are assembled as shown in FIG.
　なお、図１及び図３に示したように、制輪子保持部３９には、一対の第１押圧機構２３の間にアジャスタ機構４３が設けられている。アジャスタ機構４３は、第１制輪子１１及び第２制輪子１３のライニングが摩耗した際に、第１押圧機構２３の押圧部材であるピストン４５の移動量を一定に保つように作動する。 As shown in FIGS. 1 and 3, an adjuster mechanism 43 is provided between the pair of first pressing mechanisms 23 in the brake pad holder 39. The adjuster mechanism 43 operates so as to keep the moving amount of the piston 45 which is a pressing member of the first pressing mechanism 23 constant when the linings of the first brake element 11 and the second brake element 13 wear out.
　次に、上記した構成の作用を説明する。
　本第１実施形態に係るフローティングキャリパタイプのディスクブレーキ装置１００では、通常の制動時、第１押圧機構２３が油圧駆動される。第１押圧機構２３が駆動されると、先ず、第１制輪子１１が、対向する車輪３５のディスクロータ３６の外側面を車輪回転軸に沿う方向（単に「車輪回転軸方向」と称す）から押圧する。車輪３５のディスクロータ３６を押圧した第１制輪子１１は、このディスクロータ３６からの反力を受ける。この反力は、制輪子保持部３９及び第１キャリパアーム１９を介してキャリパボディ１７をスライドピン３３に沿う方向へ移動させる。キャリパボディ１７が移動すると、第２キャリパアーム２１の制輪子保持部４１に保持されている第２制輪子１３が、対向する車輪３５のディスクロータ３６の外側面を押圧する。その結果、車輪３５は、車輪回転軸方向の両側から第１制輪子１１と第２制輪子１３とに挟まれて制動される。 Next, the operation of the above configuration will be described.
In the floating caliper type disk brake device 100 according to the first embodiment, the first pressing mechanism 23 is hydraulically driven during normal braking. When the first pressing mechanism 23 is driven, first, the outer surface of the disc rotor 36 of the opposing wheel 35 from the direction along the wheel rotation axis (simply referred to as the “wheel rotation axis direction”) of the first brake element 11 Press. The first control wheel 11 which has pressed the disk rotor 36 of the wheel 35 receives a reaction force from the disk rotor 36. The reaction force causes the caliper body 17 to move in the direction along the slide pin 33 via the brake control member holding portion 39 and the first caliper arm 19. When the caliper body 17 moves, the second brake 13 held by the brake holder 41 of the second caliper arm 21 presses the outer surface of the disc rotor 36 of the opposing wheel 35. As a result, the wheel 35 is braked by being pinched by the first restrictor 11 and the second restrictor 13 from both sides in the wheel rotational axis direction.
　一方、通常の制動時以外の制動時（例えばパーキング時）、本第２実施形態に係るディスクブレーキ装置１００では、第２押圧機構２５が電気駆動される。この第２押圧機構２５は、単独で駆動することができるが、第１押圧機構２３と共に駆動されてもよい。第１キャリパアーム１９の制輪子保持部３９に設けられた第２押圧機構２５は、駆動されるとモータ５７が回転駆動され、スクリュー５５を回転する。スクリュー５５が回転すると、ナット５３は、スクリュー５５の軸線方向に沿って移動し、保持部材４７を突出方向に押圧する。 On the other hand, at the time of braking other than normal braking (for example, at the time of parking), in the disk brake device 100 according to the second embodiment, the second pressing mechanism 25 is electrically driven. The second pressing mechanism 25 can be driven alone, but may be driven together with the first pressing mechanism 23. When driven, the second pressing mechanism 25 provided in the brake pad holder 39 of the first caliper arm 19 rotates the motor 57 to rotate the screw 55. When the screw 55 rotates, the nut 53 moves along the axial direction of the screw 55 and presses the holding member 47 in the projecting direction.
　保持部材４７が突出すると、先ず、第１押圧機構２３の場合と同様に、第１制輪子１１が、対向する車輪３５のディスクロータ３６の外側面を車輪回転軸方向から押圧する。車輪３５のディスクロータ３６を押圧した第１制輪子１１は、このディスクロータ３６からの反力を受ける。以下、第１押圧機構２３の場合と同様の作用により、車輪３５は、車輪回転軸方向の両側から第１制輪子１１と第２制輪子１３とに挟まれて制動される。 When the holding member 47 protrudes, first, as in the case of the first pressing mechanism 23, the first brake element 11 presses the outer surface of the disc rotor 36 of the opposing wheel 35 in the wheel rotational axis direction. The first control wheel 11 which has pressed the disk rotor 36 of the wheel 35 receives a reaction force from the disk rotor 36. Hereinafter, by the same action as in the case of the first pressing mechanism 23, the wheel 35 is braked by being sandwiched between the first control wheel 11 and the second control wheel 13 from both sides in the wheel rotation axis direction.
　本第１実施形態のディスクブレーキ装置１００では、独立して駆動されるパーキングブレーキとして使用可能な第２押圧機構２５が、サービスブレーキとして使用可能な第１押圧機構２３と伴に第１キャリパアーム１９の制輪子保持部３９に搭載される。そこで、制輪子保持部３９以外の部品変更（サポートＡＳＳＹ、キャリパボディＡＳＳＹ等の変更）を行わずに、パーキングブレーキ（補助ブレーキ）の搭載が可能になる。また、このディスクブレーキ装置１００は、パーキング力の発生機構として圧縮コイルスプリングを用いないため軽量、コンパクトにパーキングブレーキが搭載できる。なお、第２押圧機構２５は、パーキングブレーキに限らず、サービスブレーキとしての第１押圧機構２３に不具合が生じた際の緊急ブレーキ（補助ブレーキ）として使用することもできる。 In the disk brake device 100 of the first embodiment, the second pressing mechanism 25 usable as a parking brake driven independently is used together with the first pressing mechanism 23 usable as a service brake. Is mounted on the controller 37 of the controller. Therefore, it is possible to mount a parking brake (auxiliary brake) without changing parts other than the control wheel holding portion 39 (changing the support ASSY, the caliper body ASSY, etc.). In addition, since the disk brake device 100 does not use a compression coil spring as a parking force generation mechanism, the parking brake can be mounted in a lightweight and compact manner. The second pressing mechanism 25 can be used not only as a parking brake but also as an emergency brake (auxiliary brake) when a failure occurs in the first pressing mechanism 23 as a service brake.
　また、本第１実施形態のディスクブレーキ装置１００では、車輪周方向の円弧に沿って長尺で形成された第１制輪子１１及び第２制輪子１３は、制動時、車輪３５の両側の側面に対して平行に接近離反するように、長尺の長手方向両端（上下両端）が、車輪３５の側面に垂直な保持部材４７により摺動自在に支持される。即ち、第１制輪子１１は、アンカーピンとしての保持部材４７により車輪回転軸方向に摺動自在に保持される。そこで、第２押圧機構２５は、この保持部材４７を駆動するように構成されたことにより、第１制輪子１１を車輪回転軸方向から押圧することができる。 Further, in the disk brake device 100 of the first embodiment, the first brake element 11 and the second brake element 13 formed in a long shape along the arc of the wheel circumferential direction are side surfaces of both sides of the wheel 35 at the time of braking. The long longitudinal direction both ends (upper and lower ends) are slidably supported by holding members 47 perpendicular to the side surface of the wheel 35 so as to approach and separate in parallel to the above. That is, the first control wheel 11 is slidably held in the wheel rotational axis direction by the holding member 47 as an anchor pin. Therefore, the second pressing mechanism 25 is configured to drive the holding member 47, so that the first control wheel 11 can be pressed in the wheel rotational axis direction.
　また、本第１実施形態のディスクブレーキ装置１００では、保持部材４７が、アンカーピンとしてアンカブロック４９に対して車輪回転軸方向に摺動自在に支持される。アンカブロック４９は、第１キャリパアーム１９における制輪子保持部３９の上下両端部に固定される。第１制輪子１１を車輪回転軸方向に摺動自在に保持するためのアンカーピン９７は、通常、アンカブロック９５にサブＡＳＳＹ化されている（図９，図１０参照）。そこで、第２押圧機構２５のサブＡＳＳＹ化も同様に可能となる。従って、このディスクブレーキ装置１００では、第２押圧機構２５がアンカブロックＡＳＳＹに集約され、取付けが現行品と同寸法とされることで、必要に応じた第２押圧機構２５（パーキングブレーキ）の選定が可能となる。 Further, in the disk brake device 100 of the first embodiment, the holding member 47 is supported as an anchor pin so as to be slidable in the wheel rotational axis direction with respect to the anchor block 49. The anchor blocks 49 are fixed to the upper and lower ends of the control rod holder 39 of the first caliper arm 19. The anchor pin 97 for holding the first brake element 11 slidably in the wheel rotational axis direction is usually sub-ASSY formed on the anchor block 95 (see FIGS. 9 and 10). Therefore, sub-ASSY formation of the second pressing mechanism 25 is also possible. Therefore, in the disc brake device 100, the second pressing mechanism 25 is integrated into the anchor block ASSY, and the mounting is made the same size as the current product, so that the second pressing mechanism 25 (parking brake) is selected as necessary. Is possible.
　パーキングブレーキの選定例としては、キャリパ単位でのパーキングブレーキの有無、必要パーキングカ、パーキング方法、サービスブレーキとの協調作動などを挙げることができる。 Examples of the selection of the parking brake include the presence or absence of the parking brake in caliper units, the necessary parking force, the parking method, and the coordinated operation with the service brake.
　また、本第１実施形態のディスクブレーキ装置１００では、第１制輪子１１を車輪３５に向けてそれぞれ独立して駆動するための第１押圧機構２３及び第２押圧機構２５が、油圧系装置により油圧駆動される第１押圧機構２３と、電気系装置により電気駆動される第２押圧機構２５との別系統で独立に作動される。これにより、第１押圧機構２３と第２押圧機構２５とは、同時に作動不良となるリスクを低減させ、制動機構の信頼性を向上させることができる。 Further, in the disk brake device 100 of the first embodiment, the first pressing mechanism 23 and the second pressing mechanism 25 for independently driving the first control wheel 11 toward the wheel 35 are hydraulic system devices. The first pressing mechanism 23 hydraulically driven and the second pressing mechanism 25 electrically driven by the electric system device operate independently of each other. As a result, the risk of the first pressing mechanism 23 and the second pressing mechanism 25 simultaneously becoming inoperable can be reduced, and the reliability of the braking mechanism can be improved.
　また、本第１実施形態のディスクブレーキ装置１００では、モータ５７が回転駆動されると、スクリュー５５が回転する。スクリュー５５は、保持部材４７（アンカーピン）に対して相対回転不能に収容されたナット５３に対して回転する。保持部材４７に相対回転不能に保持されたナット５３は、螺合するスクリュー５５が回転することにより、車輪回転軸方向に摺動する。このナット５３の車輪回転軸方向の摺動により、保持部材４７が第１制輪子１１を車輪３５に向けて押圧する。このように、ディスクブレーキ装置１００における第２押圧機構２５では、簡素な構造により、確実な押圧動作を可能としている。 Further, in the disk brake device 100 of the first embodiment, when the motor 57 is rotationally driven, the screw 55 is rotated. The screw 55 rotates with respect to the nut 53 accommodated so as not to be rotatable relative to the holding member 47 (anchor pin). The nut 53 held so as not to be relatively rotatable by the holding member 47 slides in the wheel rotational axis direction by the rotation of the screw 55 engaged with it. By the sliding of the nut 53 in the wheel rotational axis direction, the holding member 47 presses the first brake element 11 toward the wheel 35. As described above, in the second pressing mechanism 25 in the disc brake device 100, the simple pressing operation enables a reliable pressing operation.
　更に、本第１実施形態のディスクブレーキ装置１００では、一対の第２押圧機構２５が、制輪子保持部３９の上端と下端とに設けられたので、第１制輪子１１を車輪３５の側面に対して高い平行度で接近離反させることができる。 Furthermore, in the disk brake device 100 according to the first embodiment, since the pair of second pressing mechanisms 25 are provided at the upper end and the lower end of the control rod holder 39, the first control wheel 11 is on the side surface of the wheel 35. It can be approached and separated with high parallelism.
［第２実施形態］
　次に、第２実施形態を説明する。
　図８は本発明の第２実施形態に係るディスクブレーキ装置２００を第１キャリパアーム１９側から見た斜視図、図９は図８に示したディスクブレーキ装置２００を第２キャリパアーム２１側から見た分解斜視図である。なお、第２実施形態においては第１実施形態の構成と同一の構成には同一の符号を付し重複する説明は省略する。 Second Embodiment
Next, a second embodiment will be described.
8 is a perspective view of the disc brake device 200 according to the second embodiment of the present invention as viewed from the first caliper arm 19 side, and FIG. 9 is a view of the disc brake device 200 shown in FIG. 8 as viewed from the second caliper arm 21 side. It is a disassembled perspective view. In the second embodiment, the same components as those of the first embodiment are designated by the same reference numerals and their description will not be repeated.
　本第２実施形態に係るディスクブレーキ装置２００は、図８及び図９に示すように、第２押圧機構２５が、制輪子保持部３９の上端のみに一つ取り付けられるものである。即ち、ディスクブレーキ装置２００は、制輪子保持部３９の下端には、第２押圧機構２５が取り付けられていない。ディスクブレーキ装置２００では、制輪子保持部３９の下端に、アンカーピン９７を備えた従来構成のアンカブロック９５が取り付けられる。その他の構成は、第１実施形態のディスクブレーキ装置１００と同様である。 In the disk brake device 200 according to the second embodiment, as shown in FIGS. 8 and 9, one second pressing mechanism 25 is attached only to the upper end of the control / roller holding portion 39. That is, in the disc brake device 200, the second pressing mechanism 25 is not attached to the lower end of the control rod holder 39. In the disc brake device 200, an anchor block 95 having a conventional structure provided with an anchor pin 97 is attached to the lower end of the control wheel holder 39. The other configuration is the same as that of the disk brake device 100 of the first embodiment.
　図１０は図９に示した従来構成のアンカブロック９５の分解斜視図である。
　アンカブロック９５は、アンカーピン９７が、制動時に生じる制輪子保持部３９の車輪回転方向の移動を規制する。アンカブロック９５は、ブロック本体９９を有する。ブロック本体９９には、制輪子保持部３９に固定するための一対のボルト６９を挿通するボルト穴７１が穿設される。また、ブロック本体９９は、アンカーピン９７等を同軸に収容する円筒部１０１を有する。 FIG. 10 is an exploded perspective view of the anchor block 95 of the conventional configuration shown in FIG.
The anchor block 95 restricts the movement of the wheel holding portion 39 in the wheel rotational direction, which occurs during braking. The anchor block 95 has a block body 99. In the block main body 99, bolt holes 71 for inserting a pair of bolts 69 for fixing to the brake disc holder holding portion 39 are bored. Further, the block main body 99 has a cylindrical portion 101 coaxially accommodating the anchor pin 97 and the like.
　アンカブロック９５は、図１０に示すように、円筒部１０１内に、制輪子保持部側から、アンカーピン９７、Ｏリング１０３、止め輪１０５、遮熱板１０７、ブーツ１０９、ワッシャ１１１、止め輪１１３、ブッシュ１１５、止め輪１１７、Ｏリング１１９、塞ぎ板１２１、キャップ１２３を同軸に収容している。 The anchor block 95 is, as shown in FIG. 10, in the cylindrical portion 101, from the side of the control rod holding portion, the anchor pin 97, the O ring 103, the retaining ring 105, the heat shield plate 107, the boot 109, the washer 111, the retaining ring A bush 115, a retaining ring 117, an O-ring 119, a closing plate 121, and a cap 123 are coaxially accommodated.
　この第２実施形態に係るディスクブレーキ装置２００によれば、一つの第２押圧機構２５のみを備えるので、簡素な構造で、軽量、かつ、安価に製作することができる。 According to the disc brake device 200 according to the second embodiment, since only one second pressing mechanism 25 is provided, the disc brake device 200 can be manufactured with a simple structure, light weight and low cost.
［第３実施形態］
　次に、第３実施形態を説明する。
　図１１は本発明の第３実施形態に係るディスクブレーキ装置３００の要部拡大断面図である。おな、第３実施形態においては第１実施形態の構成と同一の構成には同一の符号を付し重複する説明は省略する。
　本第３実施形態に係るディスクブレーキ装置３００は、図１１に示すように、第２押圧機構１２５が、油圧駆動される第１押圧機構１２７の押圧部材であるピストン１２９を電気駆動するものである。 Third Embodiment
Next, a third embodiment will be described.
FIG. 11 is an enlarged sectional view of an essential part of a disc brake device 300 according to a third embodiment of the present invention. In the third embodiment, the same components as those of the first embodiment are designated by the same reference numerals and their description will not be repeated.
In the disc brake device 300 according to the third embodiment, as shown in FIG. 11, the second pressing mechanism 125 electrically drives a piston 129 which is a pressing member of the first pressing mechanism 127 hydraulically driven. .
　第２押圧機構１２５は、有底筒状の押圧部材であるピストン１２９と、ピストン１２９内に相対回転不能かつ軸方向に摺動自在に収容されたナット５３と、先端側がナット５３に螺合されたスクリュー５５と、スクリュー５５を回転駆動するモータ５７と、を主要な構成部材として備える。 The second pressing mechanism 125 has a piston 129 which is a bottomed cylindrical pressing member, a nut 53 rotatably accommodated in the piston 129 in a relatively non-rotatable manner in the axial direction, and a nut 53 screwed on the tip side. The screw 55 and a motor 57 for rotationally driving the screw 55 are provided as main components.
　本第３実施形態に係るディスクブレーキ装置３００では、例えばパーキング機構として用いられる第２押圧機構１２５が、本来、第１制輪子１１を油圧駆動するために設けられている第１押圧機構１２７のピストン１２９を電気駆動する。
　第２押圧機構１２５では、モータユニット５９が、制輪子保持部３９に設けられた第１押圧機構１２７の後方（図１１中、右方）に取り付けられる。本第３実施形態のモータユニット５９は、制輪子保持部３９に一体固定される。モータユニット５９は、制輪子保持部３９に固定されることにより、出力軸６３が制輪子保持部３９のシリンダ部４０内に収容されたスクリュー５５に、相対回転不能に連結される。即ち、モータユニット５９は、モータ５７の駆動力が、出力軸６３を介してシリンダ部４０内のスクリュー５５に入力される。 In the disk brake device 300 according to the third embodiment, for example, the piston of the first pressing mechanism 127 provided for hydraulically driving the first control wheel 11 is the second pressing mechanism 125 used as a parking mechanism. It electrically drives 129.
In the second pressing mechanism 125, the motor unit 59 is attached to the rear (rightward in FIG. 11) of the first pressing mechanism 127 provided in the brake pad holder 39. The motor unit 59 of the third embodiment is integrally fixed to the brake control member holding portion 39. The motor unit 59 is fixed to the brake control member holding portion 39 so as to be connected to the screw 55 in which the output shaft 63 is accommodated in the cylinder portion 40 of the brake control member holding portion 39 relatively non-rotatably. That is, in the motor unit 59, the driving force of the motor 57 is input to the screw 55 in the cylinder unit 40 via the output shaft 63.
　本第３実施形態のディスクブレーキ装置３００によれば、モータ５７が回転駆動されると、スクリュー５５が回転する。スクリュー５５は、ピストン１２９に対して相対回転不能に収容されたナット５３に対して回転する。ピストン１２９に相対回転不能に保持されたナット５３は、螺合するスクリュー５５が回転することにより、車輪回転軸方向に摺動する。このナット５３の車輪回転軸方向の摺動により、ピストン１２９が第１制輪子１１を車輪３５に向けて押圧する。
　その結果、例えばパーキングブレーキや緊急ブレーキ等の補助ブレーキとして用いられる第２押圧機構１２５は、本来、第１制輪子１１を押圧する第１押圧機構１２７のピストン１２９をダイレクトに駆動することにより、第１制輪子１１に対するモーメント等の発生が抑制され、通常の第１押圧機構２３と同等の安定した押圧力を印加することができる。 According to the disc brake device 300 of the third embodiment, when the motor 57 is rotationally driven, the screw 55 is rotated. The screw 55 rotates with respect to the nut 53 housed non-rotatably with respect to the piston 129. The nut 53 held so as not to be relatively rotatable to the piston 129 slides in the wheel rotational axis direction by the rotation of the screw 55 engaged with it. The piston 129 presses the first brake element 11 toward the wheel 35 by the sliding of the nut 53 in the wheel rotational axis direction.
As a result, for example, the second pressing mechanism 125 used as an auxiliary brake such as a parking brake or an emergency brake is basically operated directly by directly driving the piston 129 of the first pressing mechanism 127 that presses the first control wheel 11. The generation of a moment or the like with respect to the one control wheel 11 is suppressed, and a stable pressing force equivalent to that of the normal first pressing mechanism 23 can be applied.
　従って、上記各実施形態に係るディスクブレーキ装置１００，２００，３００によれば、サービスブレーキと補助ブレーキに第１キャリパアーム１９及び第２キャリパアーム２１や、第１制輪子１１及び第２制輪子１３等の共用の部品を使用することができ、コンパクトにパーキング機構等の補助ブレーキが搭載できる。 Therefore, according to the disk brake devices 100, 200, and 300 according to the above embodiments, the first caliper arm 19 and the second caliper arm 21, the first control wheel 11 and the second control wheel 13 are used as service brakes and auxiliary brakes. And other common parts can be used, and an auxiliary brake such as a parking mechanism can be mounted compactly.
　ここで、上述した本発明に係るフローティングキャリパタイプのディスクブレーキ装置の実施形態の特徴をそれぞれ以下に簡潔に纏めて列記する。
　［１］　支持体（１５）と、
　前記支持体（１５）にスライドピン（３３）を介して摺動自在に支持されたキャリパボディ（１７）と、
　前記キャリパボディ（１７）に車輪（３５）を跨いで形成された第１キャリパアーム（１９）及び第２キャリパアーム（２１）と、
　前記第１キャリパアーム（１９）及び前記第２キャリパアーム（２１）の制輪子保持部（３９，４１）にそれぞれ保持された第１制輪子（１１）及び第２制輪子（１３）と、
　前記第１制輪子（１１）を前記車輪（３５）に向けてそれぞれ独立して駆動するために前記第１キャリパアーム（１９）の前記制輪子保持部（３９）に設けられた第１押圧機構（２３，１２７）及び第２押圧機構（２５，１２５）と、を備える、フローティングキャリパタイプのディスクブレーキ装置（１００，２００，３００）。
　［２］　上記［１］に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記第２押圧機構（２５）が、前記第１制輪子（１１）を車輪回転軸方向に摺動自在に保持するため前記第１キャリパアーム（１９）における前記制輪子保持部（３９）の端部に配置された保持部材（４７）を駆動する、フローティングキャリパタイプのディスクブレーキ装置（１００，２００）。
　［３］　上記［２］に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記保持部材（４７）が、前記第１キャリパアーム（１９）の前記制輪子保持部（３９）の端部に固定されたアンカブロック（４９）に対して車輪回転軸方向に摺動自在に支持された、フローティングキャリパタイプのディスクブレーキ装置（１００，２００）。
　［４］　上記［１］～［３］の何れか１つに記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記第１押圧機構（２３，１２７）が油圧駆動され、前記第２押圧機構（２５，１２５）が電気駆動される、フローティングキャリパタイプのディスクブレーキ装置（１００，２００，３００）。
　［５］　上記［４］に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記第２押圧機構（１２５）が、油圧駆動される前記第１押圧機構（１２７）の押圧部材（ピストン１２９）を駆動する、フローティングキャリパタイプのディスクブレーキ装置（３００）。
　［６］　上記［２］または［３］に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記第２押圧機構（２５）が、
　有底筒状の前記保持部材（４７）と、
　前記保持部材（４７）内に相対回転不能かつ軸方向に摺動自在に収容されたナット（５３）と、
　先端側が前記ナット（５３）に螺合されたスクリュー（５５）と、
　前記スクリュー（５５）を回転駆動するモータ（５７）と、を備える、フローティングキャリパタイプのディスクブレーキ装置（１００，２００）。
　［７］　上記［５］に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
　前記第２押圧機構（１２５）が、
　有底筒状の前記押圧部材（ピストン１２９）と、
　前記押圧部材（ピストン１２９）内に相対回転不能かつ軸方向に摺動自在に収容されたナット（５３）と、
　先端側が前記ナット（５３）に螺合されたスクリュー（５５）と、
　前記スクリュー（５５）を回転駆動するモータ（５７）と、を備える、フローティングキャリパタイプのディスクブレーキ装置（３００）。 Here, the features of the embodiments of the floating caliper type disk brake device according to the present invention described above will be briefly summarized and listed below.
[1] a support (15),
A caliper body (17) slidably supported on the support (15) via a slide pin (33);
A first caliper arm (19) and a second caliper arm (21) formed on the caliper body (17) across the wheel (35);
A first control wheel (11) and a second control wheel (13) respectively held by the control wheel holding portions (39, 41) of the first caliper arm (19) and the second caliper arm (21);
A first pressing mechanism provided on the brake support portion (39) of the first caliper arm (19) to independently drive the first brake (11) toward the wheel (35). A floating caliper type disc brake device (100, 200, 300) comprising: (23, 127) and a second pressing mechanism (25, 125).
[2] The floating caliper type disk brake device according to the above [1], which
The second pressing mechanism (25) holds the first brake disc (11) slidably in the wheel rotational axis direction, and the end of the brake disc retaining portion (39) of the first caliper arm (19) A floating caliper type disc brake device (100, 200) for driving a holding member (47) arranged in the unit.
[3] The floating caliper type disk brake device according to the above [2], which
The holding member (47) is slidably supported in the wheel rotational axis direction with respect to an anchor block (49) fixed to an end of the brake disc holding portion (39) of the first caliper arm (19) Floating caliper type disc brake device (100, 200).
[4] The floating caliper type disk brake device according to any one of the above [1] to [3],
A floating caliper type disk brake device (100, 200, 300) in which the first pressing mechanism (23, 127) is hydraulically driven and the second pressing mechanism (25, 125) is electrically driven.
[5] A floating caliper type disk brake device according to the above [4], which
A floating caliper type disk brake device (300), wherein the second pressing mechanism (125) drives a pressing member (piston 129) of the first pressing mechanism (127) hydraulically driven.
[6] The floating caliper type disk brake device according to [2] or [3] above,
The second pressing mechanism (25)
The bottomed cylindrical holding member (47);
A nut (53) accommodated in the holding member (47) so as to be relatively non-rotatable and axially slidable;
A screw (55) whose tip end is screwed to the nut (53);
A floating caliper type disc brake device (100, 200), comprising: a motor (57) for rotationally driving the screw (55).
[7] The floating caliper type disk brake device according to the above [5], which
The second pressing mechanism (125)
The bottomed cylindrical pressing member (piston 129);
A nut (53) accommodated in the pressing member (piston 129) so as to be non-relatively rotatable and axially slidable;
A screw (55) whose tip end is screwed to the nut (53);
A floating caliper type disk brake device (300), comprising: a motor (57) for rotationally driving the screw (55).
　なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。
　また、本出願は、２０１７年１０月１０日出願の日本特許出願（特願２０１７－１９７００７）に基づくものであり、その内容はここに参照として取り込まれる。 The present invention is not limited to the embodiments described above, and appropriate modifications, improvements, etc. are possible. In addition, the material, shape, size, number, arrangement location, and the like of each component in the embodiment described above are arbitrary and not limited as long as the present invention can be achieved.
The present application is based on Japanese Patent Application (Japanese Patent Application No. 2017-197007) filed on October 10, 2017, the contents of which are incorporated herein by reference.
　本発明のフローティングキャリパタイプのディスクブレーキ装置によれば、サービスブレーキと補助ブレーキにキャリパアームや制輪子等の共用の部品を使用することができ、コンパクトにパーキング機構等の補助ブレーキを搭載することができる。 According to the floating caliper type disk brake device of the present invention, it is possible to use common parts such as caliper arms and brake pads for the service brake and the auxiliary brake, and to mount the auxiliary brake such as the parking mechanism compactly. it can.
１１…第１制輪子
１３…第２制輪子
１５…支持体
１７…キャリパボディ
１９…第１キャリパアーム
２１…第２キャリパアーム
２３…第１押圧機構
２５…第２押圧機構
３３…スライドピン
３５…車輪
３９…制輪子保持部
４７…保持部材
４９…アンカブロック
５３…ナット
５５…スクリュー
５７…モータ
１００…ディスクブレーキ装置 11 ... first control wheel 13 ... second control wheel 15 ... support body 17 ... caliper body 19 ... first caliper arm 21 ... second caliper arm 23 ... first pressing mechanism 25 ... second pressing mechanism 33 ... slide pin 35 ... Wheel 39: Restraint wheel holding portion 47: Holding member 49: Anchor block 53: Nut 55: Screw 57: Motor 100: Disc brake device

Claims (7)

  1. 　支持体と、
    　前記支持体にスライドピンを介して摺動自在に支持されたキャリパボディと、
    　前記キャリパボディに車輪を跨いで形成された第１キャリパアーム及び第２キャリパアームと、
    　前記第１キャリパアーム及び前記第２キャリパアームの制輪子保持部にそれぞれ保持された第１制輪子及び第２制輪子と、
    　前記第１制輪子を前記車輪に向けてそれぞれ独立して駆動するために前記第１キャリパアームの前記制輪子保持部に設けられた第１押圧機構及び第２押圧機構と、を備える、フローティングキャリパタイプのディスクブレーキ装置。     A support,
    A caliper body slidably supported on the support via a slide pin;
    A first caliper arm and a second caliper arm formed across the wheels on the caliper body;
    A first control wheel and a second control wheel held by the control wheel holding portions of the first caliper arm and the second caliper arm, respectively;
    A floating caliper comprising: a first pressing mechanism and a second pressing mechanism provided on the brake retaining portion of the first caliper arm for independently driving the first brake and the wheel toward the wheel Type of disc brake device.
  2. 　請求項１に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記第２押圧機構が、前記第１制輪子を車輪回転軸方向に摺動自在に保持するため前記第１キャリパアームにおける前記制輪子保持部の端部に配置された保持部材を駆動する、フローティングキャリパタイプのディスクブレーキ装置。     The floating caliper type disk brake device according to claim 1, wherein
    The second pressing mechanism is a floating driving device for holding a member disposed at an end of the wheel support holding portion of the first caliper arm to hold the first wheel continuously in the wheel rotational axis direction. Caliper type disc brake device.
  3. 　請求項２に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記保持部材が、前記第１キャリパアームの前記制輪子保持部の端部に固定されたアンカブロックに対して車輪回転軸方向に摺動自在に支持された、フローティングキャリパタイプのディスクブレーキ装置。     The floating caliper type disk brake device according to claim 2, wherein
    A floating caliper type disk brake device, wherein the holding member is slidably supported in the wheel rotational axis direction with respect to an anchor block fixed to an end of the brake pad retaining portion of the first caliper arm.
  4. 　請求項１～請求項３の何れか１項に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記第１押圧機構が油圧駆動され、前記第２押圧機構が電気駆動される、フローティングキャリパタイプのディスクブレーキ装置。     A floating caliper type disk brake device according to any one of claims 1 to 3, wherein
    A floating caliper type disk brake device, wherein the first pressing mechanism is hydraulically driven and the second pressing mechanism is electrically driven.
  5. 　請求項４に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記第２押圧機構が、油圧駆動される前記第１押圧機構の押圧部材を駆動する、フローティングキャリパタイプのディスクブレーキ装置。     The floating caliper type disk brake device according to claim 4, wherein
    A floating caliper type disk brake device, wherein the second pressing mechanism drives a pressing member of the first pressing mechanism that is hydraulically driven.
  6. 　請求項２または請求項３に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記第２押圧機構が、
    　有底筒状の前記保持部材と、
    　前記保持部材内に相対回転不能かつ軸方向に摺動自在に収容されたナットと、
    　先端側が前記ナットに螺合されたスクリューと、
    　前記スクリューを回転駆動するモータと、を備える、フローティングキャリパタイプのディスクブレーキ装置。     A floating caliper type disk brake device according to claim 2 or claim 3, wherein
    The second pressing mechanism is
    The bottomed cylindrical holding member;
    A nut rotatably accommodated in the holding member so as to be relatively non-rotatable and axially slidable;
    A screw whose tip end is screwed to the nut;
    A floating caliper type disk brake device, comprising: a motor that rotationally drives the screw.
  7. 　請求項５に記載のフローティングキャリパタイプのディスクブレーキ装置であって、
    　前記第２押圧機構が、
    　有底筒状の前記押圧部材と、
    　前記押圧部材内に相対回転不能かつ軸方向に摺動自在に収容されたナットと、
    　先端側が前記ナットに螺合されたスクリューと、
    　前記スクリューを回転駆動するモータと、を備える、フローティングキャリパタイプのディスクブレーキ装置。     The floating caliper type disk brake device according to claim 5, wherein
    The second pressing mechanism is
    The bottomed cylindrical pressing member;
    A nut rotatably accommodated in the pressing member in a relatively non-rotatable manner in the axial direction;
    A screw whose tip end is screwed to the nut;
    A floating caliper type disk brake device, comprising: a motor that rotationally drives the screw.
PCT/JP2018/035177 2017-10-10 2018-09-21 Floating caliper disc brake device WO2019073786A1 (en)

Applications Claiming Priority (2)

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JP2017197007A JP2019070409A (en) 2017-10-10 2017-10-10 Floating caliper type disc brake device
JP2017-197007 2017-10-10

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Cited By (2)

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JP2021524828A (en) * 2018-05-30 2021-09-16 チンタオ シュイチョウ コンストラクション マシネリー セール アンド サービス カンパニー リミテッド Disc type hydraulic anti-lock braking and braking system
CN113719409A (en) * 2021-08-27 2021-11-30 嘉兴南洋职业技术学院 Fan blade rotating shaft braking system of wind generating set

Families Citing this family (1)

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JP7364425B2 (en) 2019-10-29 2023-10-18 曙ブレーキ工業株式会社 Railway brake equipment

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Publication number Priority date Publication date Assignee Title
JPS4864378A (en) * 1971-12-01 1973-09-06
JP2000515615A (en) * 1996-08-06 2000-11-21 ブレーキ テクノロジーズ プロプライアタリー リミテッド Parking and service brake equipment
JP2015203465A (en) * 2014-04-15 2015-11-16 カヤバ工業株式会社 Caliper brake device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4864378A (en) * 1971-12-01 1973-09-06
JP2000515615A (en) * 1996-08-06 2000-11-21 ブレーキ テクノロジーズ プロプライアタリー リミテッド Parking and service brake equipment
JP2015203465A (en) * 2014-04-15 2015-11-16 カヤバ工業株式会社 Caliper brake device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021524828A (en) * 2018-05-30 2021-09-16 チンタオ シュイチョウ コンストラクション マシネリー セール アンド サービス カンパニー リミテッド Disc type hydraulic anti-lock braking and braking system
JP7010531B2 (en) 2018-05-30 2022-02-10 チンタオ シュイチョウ コンストラクション マシネリー セール アンド サービス カンパニー リミテッド Disc type hydraulic anti-lock brake and brake system
CN113719409A (en) * 2021-08-27 2021-11-30 嘉兴南洋职业技术学院 Fan blade rotating shaft braking system of wind generating set

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