CN102758867B - Electronic wedge drum brake - Google Patents

Electronic wedge drum brake Download PDF

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Publication number
CN102758867B
CN102758867B CN201210233853.0A CN201210233853A CN102758867B CN 102758867 B CN102758867 B CN 102758867B CN 201210233853 A CN201210233853 A CN 201210233853A CN 102758867 B CN102758867 B CN 102758867B
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CN
China
Prior art keywords
ferrum
punching
welding shoe
drive rod
shoe
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Application number
CN201210233853.0A
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Chinese (zh)
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CN102758867A (en
Inventor
李金龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haitong brake Co., Ltd.
Original Assignee
QINGDAO ZHIYUAN AUTO PARTS CO Ltd
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Abstract

The invention discloses a kind of electronic wedge drum brake, including dust blocking tray, base plate, dust blocking tray arranges the punching-welding shoe ferrum arranged that floats with friction plate, wherein two punching-welding shoe ferrum opposite side are rotatably connected to each other by support shaft, the described two punching-welding shoe ferrum other ends are connected to each other by return spring, also including the cotter mechanism that two punching-welding shoe ferrum can apply vertical direction thrust being located between the two punching-welding shoe ferrum ends with return spring, described cotter mechanism is connected with electronic power plant.The cotter mechanism that two punching-welding shoe ferrum can be applied vertical direction thrust between the two punching-welding shoe ferrum ends with return spring arranged, and the electronic power plant of power is provided for cotter mechanism.It is no longer necessary to tradition, complexity, heavy air braking system, the lightest sensitive electronic control system.Relatively conventional brake response time is greatly shortened, and braking moment is the most controlled, and this brake is applicable to all kinds of medium and heavy car.

Description

Electronic wedge drum brake
Technical field
The present invention relates to a kind of brake, particularly relate to a kind of automobile brake that is mainly used in obtain the electronic wedge drum of safe parking Formula brake.
Background technology
At present, the brake used by automobile is nearly all friction-type, can be divided into drum-type and the big class of disc type two.Drum brake rubs The rotation element wiped in pair is brake drum, and its working surface is the face of cylinder;The element that rotates of disk brake is then the braking rotated Dish, with end face as working surface, drum brake is big because of its fast indicating brake action, because of various at passenger vehicle, truck etc. Extensively apply on medium and heavy car, along with more emphasizing to alleviate vehicle weight people's day and simplifying vehicle component, common complexity, heaviness Air braking system can not meet present people and automobile parking security performance and car load are braked flexibly, reduces brake response The requirement of time.
Summary of the invention
The deficiency existed for prior art, the technical problem to be solved is to provide one can shorten brake response Time, the electronic wedge drum brake that light, sensitive, braking moment is the most controlled and braking procedure is safe and reliable.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of electronic wedge drum brake, including gear Dirt dish, base plate, arrange the punching-welding shoe ferrum arranged that floats with friction plate, wherein two punching-welding shoe ferrum opposite side on dust blocking tray Rotatably connected to each other by support shaft, the described two punching-welding shoe ferrum other ends are connected to each other by return spring, also include being located at and have The cotter mechanism that two punching-welding shoe ferrum can be applied vertical direction thrust between two punching-welding shoe ferrum ends of return spring, described voussoir Mechanism is connected with electronic power plant.
Above-mentioned electronic wedge drum brake, is characterized in that: described cotter mechanism is had the driving of two rotating spheres by its end Bar, respectively with the end Elastic Contact of two punching-welding shoe ferrum have relative wedge-type end face voussoir main body composition, described two rotate Spheroid is set to wedge-type end face to match along its apparent motion, and described two rotating spheres hang down with the tangential of two wedge-type end faces respectively Directly, drive rod is provided with the back-moving spring risen so that drive rod.
Above-mentioned electronic wedge drum brake, described electronic power plant is by tubular flange, ball screw assembly, feather key and straight Stream drives motor composition, and described tubular flange one end is fixing with base plate to be connected, and the other end is connected with direct-drive motor, in tubular Arranging ball screw assembly, in flange, described ball screw assembly, one end is connected with the main shaft of direct-drive motor, the other end and drive rod It is flexibly connected, is provided with the feather key guiding ball screw assembly, along tubular flange axially-movable at tubular flange inner wall.
Above-mentioned electronic wedge drum brake, be provided with between described cotter mechanism and punching-welding shoe ferrum when friction plate and brake drum it Between when there is excessive gaps, can automatically eliminate the brake clearance automatic regulator of excessive gaps.
Above-mentioned electronic wedge drum brake, described brake clearance automatic regulator is made up of support body, seal casinghousing and spring, Described support body is connected with base plate, and outside seal casinghousing, the end with punching-welding shoe ferrum is connected, and inner side connects with support body and voussoir body seal Connect.
Above-mentioned electronic wedge drum brake, described ball screw assembly, includes leading screw and is located at the sliding shoe of leading screw end, described Sliding shoe top and leading screw clearance fit, sliding shoe side is adaptive, at the bottom of described sliding shoe with the feather key being located at tubular flange inner wall Portion is connected with the drive rod elasticity of cotter mechanism.
Above-mentioned electronic wedge drum brake, described drive rod top arranges installing rack, and back-moving spring top is connected with installing rack, Bottom is connected with the support body of brake clearance automatic regulator.
Above-mentioned electronic wedge drum brake, is provided with the connecting hole of indent bottom described sliding shoe, described drive rod top is inserted Entering connecting hole to coordinate with sliding shoe, the degree of depth of described connecting hole is identical to the distance on drive rod top with installing rack.
The advantage of electronic wedge drum brake of the present invention is: between the two punching-welding shoe ferrum ends with return spring of setting can Two punching-welding shoe ferrum are applied the cotter mechanism of vertical direction thrust, and the electronic power plant of power is provided for cotter mechanism.No Need tradition, complexity, heavy air braking system, the lightest sensitive electronic control system again.Relatively conventional brake rings Being greatly shortened between Ying Shi, braking moment is the most controlled, and this brake is applicable to all kinds of medium and heavy car.Driver passes through deceleration of electrons Signal is passed to controller by pedal, and instruction is sent respectively to the EWDB of each wheel by controller, and direct-drive motor is defeated immediately Go out moment of torsion, and be converted into retrothrust by ball screw assembly, then by brake clearance automatic regulator cotter mechanism by thrust It is converted into the thrust to shoes of vertical direction, vehicle is implemented braking.When there is excessive gaps between friction plate and brake drum, Automatic gap adjustment device can eliminate excessive gaps automatically, makes gap maintain steady state value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the side block diagram of the present invention;
Fig. 3 is the schematic enlarged-scale view of I part in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described in further details by specific embodiment;
As shown in Figure 1, 2, 3, a kind of electronic wedge drum brake, including dust blocking tray 1, base plate 2, dust blocking tray 1 sets Putting the punching-welding shoe ferrum 4 arranged that floats with friction plate 3, wherein two punching-welding shoe ferrum 4 opposite side are revolved each other by support shaft 5 Turning and connect, the other end of two punching-welding shoe ferrum 4 is connected to each other by return spring 6, also includes being located at and has the two of return spring 6 The cotter mechanism 7 that two punching-welding shoe ferrum 4 can be applied vertical direction thrust between punching-welding shoe ferrum 4 end, cotter mechanism 7 and electricity Sub-power set 8 are connected.Cotter mechanism 7 by its end have the drive rod 72 of two rotating spheres 71, respectively with two punching-welding shoe The voussoir main body 74 with relative wedge-type end face 73 of the end Elastic Contact of ferrum 4 and match with wedge-type end face 73 can edge Two rotating spheres 71 of its apparent motion form, two rotating spheres 71 tangential vertical with two wedge-type end faces 73 respectively, are driving Bar 72 is provided with the back-moving spring 75 risen so that drive rod 72.Electronic power plant 8 is by tubular flange 81, ball screw assembly, 82, feather key 83 and direct-drive motor 84 form, and one end of tubular flange 81 is fixing with base plate 2 to be connected, and the other end is with straight Stream drives motor 84 to connect, and ball screw assembly, 82 is arranged in tubular flange 81, and the upper end of ball screw assembly, 82 is driven with direct current The main shaft of galvanic electricity machine 84 is connected, and lower end is flexibly connected with drive rod 72, and the inwall at tubular flange 81 is provided with guiding ball wire Thick stick pair 82 is along the feather key 83 of the axially-movable of tubular flange 81.It is provided with between cotter mechanism 7 and punching-welding shoe ferrum 4 when friction When there is excessive gaps between sheet 3 and brake drum, can automatically eliminate the brake clearance automatic regulator 9 of excessive gaps.Brake cabin Gap automatic regulator 9 is made up of support body 91, seal casinghousing 92 and spring 93, and support body 91 is connected with base plate 2, seal casinghousing The outside of 92 is connected with the end of punching-welding shoe ferrum 4, and inner side is tightly connected with support body 91 and voussoir main body 74.Wherein, ball wire Thick stick pair 82 includes leading screw 821 and is located at the sliding shoe 822 of leading screw 821 end, and the top of sliding shoe 822 is movable with leading screw 821 Coordinating, the side of sliding shoe 822 is adaptive with the feather key 83 being located at tubular flange 81 inwall, and the bottom of sliding shoe 822 is arranged Having the connecting hole 10 of indent, the top of drive rod 72 is inserted connecting hole 10 and is coordinated with sliding shoe 822, close at drive rod 72 The position at top arranges installing rack 11, and the top of back-moving spring 75 is connected with installing rack 11, and bottom adjusts automatically with brake clearance The support body 91 of device 9 is connected.The degree of depth of connecting hole 10 is identical with the distance on the top of installing rack 11 to drive rod 72.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art general Logical technical staff, in the essential scope of the present invention, the change made, retrofits, adds or replaces, should belong to the present invention's Protection domain.

Claims (1)

1. an electronic wedge drum brake, including dust blocking tray, base plate, arranges tool on dust blocking tray Having the punching-welding shoe ferrum arranged that floats of friction plate, wherein two punching-welding shoe ferrum opposite side are by supporting Axle is rotatably connected to each other, and the described two punching-welding shoe ferrum other ends are connected to each other by return spring, its It is characterised by: also include being located between the two punching-welding shoe ferrum ends with return spring can be to two Punching-welding shoe ferrum applies the cotter mechanism of vertical direction thrust, and described cotter mechanism fills with electronics power Put connected;Described cotter mechanism is had the drive rod of two rotating spheres by its end, respectively with two The voussoir main body composition with relative wedge-type end face of the end Elastic Contact of punching-welding shoe ferrum, institute Stating two rotating spheres to be set to wedge-type end face to match along its apparent motion, described two rotate Spheroid tangential vertical with two wedge-type end faces respectively, is provided with so that drive rod rises on drive rod Back-moving spring;Described electronic power plant by tubular flange, ball screw assembly, feather key and Direct-drive motor forms, and described tubular flange one end is fixing with base plate to be connected, and the other end is with straight Stream drives motor to connect, and arranges ball screw assembly, described ball screw assembly, one in tubular flange End is connected with the main shaft of direct-drive motor, and the other end is flexibly connected with drive rod, in tubular method Blue inwall is provided with the feather key guiding ball screw assembly, along tubular flange axially-movable;Brake cabin Gap automatic regulator is made up of support body, seal casinghousing and spring, and described support body is connected with base plate, Outside seal casinghousing, the end with punching-welding shoe ferrum is connected, and inner side connects with support body and voussoir body seal Connect;Described ball screw assembly, includes leading screw and is located at the sliding shoe of leading screw end, described sliding shoe Top and leading screw clearance fit, sliding shoe side is adaptive with the feather key being located at tubular flange inner wall, Bottom described sliding shoe, the drive rod elasticity with cotter mechanism is connected;Described drive rod top is arranged Installing rack, back-moving spring top is connected with installing rack, bottom and brake clearance automatic regulator Support body is connected;Being provided with the connecting hole of indent bottom described sliding shoe, described drive rod top is inserted Entering connecting hole to coordinate with sliding shoe, the degree of depth of described connecting hole and installing rack are to drive rod top Apart from identical.
CN201210233853.0A 2012-07-09 2012-07-09 Electronic wedge drum brake Active CN102758867B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210233853.0A CN102758867B (en) 2012-07-09 2012-07-09 Electronic wedge drum brake

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Application Number Priority Date Filing Date Title
CN201210233853.0A CN102758867B (en) 2012-07-09 2012-07-09 Electronic wedge drum brake

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CN102758867A CN102758867A (en) 2012-10-31
CN102758867B true CN102758867B (en) 2016-08-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570350B (en) * 2015-12-31 2018-08-10 沈阳理工大学 A kind of electronic wedge brake
DE102017108161B3 (en) * 2017-04-18 2018-08-02 Saf-Holland Gmbh Spreizkeileinheit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637499A (en) * 1984-09-21 1987-01-20 Deutsche Perrot-Bremse Gmbh Expander mechanism for an internal shoe drum brake
CN2089092U (en) * 1990-04-25 1991-11-20 高金鉴 Hand actuated for jeep
CN2921438Y (en) * 2005-12-22 2007-07-11 江苏恒力制动器制造有限公司 Automatic regulating brake gap wedge type mechanism
CN201041210Y (en) * 2007-06-08 2008-03-26 江苏大学 Vehicular electronic machine brake device
CN101392805A (en) * 2008-10-27 2009-03-25 任秀军 Improved structure of exterior adjusting automobile drum brake
CN202707879U (en) * 2012-07-09 2013-01-30 青岛汇达丰铸造有限公司 Electronic wedge drum brake

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637499A (en) * 1984-09-21 1987-01-20 Deutsche Perrot-Bremse Gmbh Expander mechanism for an internal shoe drum brake
CN2089092U (en) * 1990-04-25 1991-11-20 高金鉴 Hand actuated for jeep
CN2921438Y (en) * 2005-12-22 2007-07-11 江苏恒力制动器制造有限公司 Automatic regulating brake gap wedge type mechanism
CN201041210Y (en) * 2007-06-08 2008-03-26 江苏大学 Vehicular electronic machine brake device
CN101392805A (en) * 2008-10-27 2009-03-25 任秀军 Improved structure of exterior adjusting automobile drum brake
CN202707879U (en) * 2012-07-09 2013-01-30 青岛汇达丰铸造有限公司 Electronic wedge drum brake

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Effective date of registration: 20180119

Address after: 266200 Hua Quan Road, Longquan office, Qingdao, Shandong, Jimo

Patentee after: Qingdao Linda Automobile New Technology Development Co Ltd

Address before: Chengyang District of Shandong city in Qingdao province 266106 Xifu 100 Road No. 130

Patentee before: Qingdao Zhiyuan Auto Parts Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180530

Address after: 266106 Fujia street, Chengyang District, Qingdao, Shandong

Patentee after: Qingdao Zhiyuan Auto Parts Co., Ltd.

Address before: 266200 Shandong Qingdao Jimo Longquan office Hua Quan Road

Patentee before: Qingdao Linda Automobile New Technology Development Co Ltd

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180605

Address after: 266200 Shandong Qingdao Jimo Longquan office Hua Quan Road

Patentee after: QINGDAO LINDA TECHNOLOGY DEVELOPMENT CO., LTD.

Address before: 266106 Fujia street, Chengyang District, Qingdao, Shandong

Patentee before: Qingdao Zhiyuan Auto Parts Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180906

Address after: No. 7, Ruijin Road, Licang District, Qingdao, Shandong Province, No. 266041

Patentee after: Qingdao Haitong brake Co., Ltd.

Address before: 266200 Shandong Qingdao Jimo Longquan office Hua Quan Road

Patentee before: QINGDAO LINDA TECHNOLOGY DEVELOPMENT CO., LTD.