CN101767575A - Electric braking system - Google Patents

Electric braking system Download PDF

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Publication number
CN101767575A
CN101767575A CN200910254596A CN200910254596A CN101767575A CN 101767575 A CN101767575 A CN 101767575A CN 200910254596 A CN200910254596 A CN 200910254596A CN 200910254596 A CN200910254596 A CN 200910254596A CN 101767575 A CN101767575 A CN 101767575A
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brake
pull bar
translation
braking
fixed
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CN200910254596A
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CN101767575B (en
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孙力
曾卫东
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Shanxi Guoli Information Technology Co Ltd
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Individual
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Abstract

The invention relates to a vehicle braking system, which comprises a brake disc, brake calibers (3) two brake plates (13) arranged at two sides of a retarding disc (6), a driving device and an executing device; the executing device can push the brake plates (13) to act under drive of the driving device. The invention is designed to improve the technical problems that the existing hydraulic braking system is complicated in structure, and is easy to cause braking failure due to leakage of the hydraulic pipe or degeneration of brake fluid. The invention has the advantages of convenient operation, high reliability and simple structure.

Description

A kind of electric brake system
Technical field
The present invention relates to a kind of motor vehicle braking system.
Background technology
Brake system (being commonly called as brake, lock) is the parts that make the movement parts in the mechanical equipment stop or slowing down, and mainly is made up of brake bracket, brake component and operating control etc.In order to increase lock torque and to reduce scantling of structure, brake system is installed on the turning cylinder of mechanical equipment usually.Brake system is divided into plate disc brake and drum brake mechanism.
1, drum brake mechanism has good effect of stopping certainly and manufacturing cost lower than plate disc brake.But the shortcoming of drum brake mechanism maximum is can skid after being stained with rainwater rainy day, causes brake failure.
2, the rotating element in the friction pair of plate disc brake is the rosette of end face work, is called as brake disc, and its retaining element comprises brake caliper and brake plate.Plate disc brake is divided into again decides caliper disc and floating caliper type disc two classes.The centnifugal force of plate disc brake can outwards be dished out pollutions such as water, dust, to keep the certain cleanliness level of plate disc brake.Because the plate disc brake part is independent outside, be easier to maintenance in addition than drum brake mechanism.
But existing brake system all is to adopt hydraulic braking, so complex structure is revealed because of conduit under fluid pressure or the rotten brake failure that causes of braking liquid easily.
Summary of the invention
The purpose of this invention is to provide a kind of electric brake system, it has improved existing hydraulic brake system complex structure, easy of conduit under fluid pressure leakage or the rotten technical matters that causes brake failure of braking liquid.
Technical solution of the present invention:
A kind of electric brake system comprises brake disc, brake caliper 3, is arranged on two brake plates 13, actuating device, the executive device of brake disc 6 two sides, and described actuating unit can promote brake plate 13 actions under the driving of actuating device; Its special character is:
Described actuating device is the electric ball screw load push-pull that is arranged on the brake caliper 3, and described electric ball screw load push-pull comprises driving motor 7, controller 4, runner assembly, translation assembly, position transduser;
Described runner assembly comprises bearing chamber 30, leading screw 14, is arranged on the pressure bearing pair 25 in the bearing chamber 30; One end of described leading screw 14 is provided with outside thread, and its other end is connected with driving motor output shaft 24, on its middle part circumference face the spacing pillow block 26 vertical with leading screw 14 axis directions is set; Described spacing pillow block 26 is arranged in the bearing chamber 30, and two pressure bearings of described pressure bearing pair 25 are separately positioned on two sides of spacing pillow block 26;
Described translation assembly comprises limit base 8, be arranged on translation pull bar 9 in the limit base 8, can be combined into the nut 15 of ball screw assembly, with leading screw 14; The external part of described translation pull bar 9 is connected with executive device, and the other end of described translation pull bar 9 is provided with blind hole, and described nut 15 is embedded in the blind hole; Described limit base 8 is provided with and can comes and goes the centre hole 33 that moves for translation pull bar 9;
Described driving motor 7 is fixed on a side of bearing chamber 30, and described limit base 8 is fixed on the opposite side of bearing chamber 30;
Described position transduser comprises at least two Hall elements 32 and a permanent magnet 31; Described permanent magnet 31 is fixed on the circumference side of translation pull bar 9, and described Hall element 32 is fixed on the limit base 8 and permanent magnet 31 corresponding positions, and the output signal of described Hall element 32 is sent into controller 4.
Above-mentioned executive device comprises brake rod 17, rotor plate 1, be arranged on braking screw 2 on the brake caliper 3, can be combined into the stop-off nut 16 of braking ball screw assembly, with braking screw 2; The free end of described rotor plate 1 is connected with translation pull bar 9; The other end of described rotor plate 1 and braking screw 2 vertical being connected, described stop-off nut 16 is embedded in the inner end surface of brake rod 17, and the external part of described brake rod 17 contacts with the non-operative end surface of one of them brake plate 13.
Above-mentioned electric brake system comprises emergency braking backguy 12; The free end of described rotor plate 1 is provided with the waist shaped hole consistent with the drive link sense of motion 10, and described drive link is provided with the bearing pin 11 that matches with waist shaped hole, and an end of described brake pulling wire is fixed on the free end of rotor plate 1.
Above-mentioned executive device comprises wedge block 21 that is arranged on brake caliper interior 3 and fixed block 22 and the brake silpper 18 that is separately positioned on wedge block 21 both sides, described wedge block 21 comprises identical and centrosymmetric inclined-plane, two oblique angles, described fixed block 22 and brake silpper 18 are provided with an inclined-plane at identical oblique angle, the large end face of described wedge block 21 is connected with the external part of translation pull bar 9, and side relative with the inclined-plane on the described brake silpper 18 contacts with one of them brake plate 13.
Above-mentioned electric brake system comprises emergency braking backguy 12; The large end face of described wedge block 21 is provided with unthreaded hole 23, and the external part of described translation pull bar 9 is the brake push rod 20 that stretches into unthreaded hole 23; One end of described emergency braking backguy 12 is fixed on the small end face of wedge block 21.
The circumference side of above-mentioned translation pull bar 9 is provided with the limiting stopper 27 of two evaginations; Described limit base 8 is provided with and can comes and goes two position-limited troughs 28 that slide for two limiting stoppers 27.
Above-mentioned driving motor 7 is stepping motor or servomotor.
The advantage that the present invention has is:
1, the present invention promotes the purpose that brake plate that corresponding executive device promotes plate disc brake reaches braking by the electric ball screw load push-pull.Because being the circular movement with driving motor stepping motor or servomotor, the electric ball screw load push-pull is converted to straight-line motion, so the electric ball screw load push-pull can be by parameter or curve motions such as push-and-pull strength of setting and kinematic velocitys, and can imitate the abs braking mode and carry out work.
2, the present invention compare with existing hydraulic braking mode have easy to operate, reliability is high, advantage of simple structure.
3, the present invention can be widely used in the braking and the emergency braking of heavy duty truck, large tractor, all kinds of construction machinery and equipment, big machinery Fabricating machinery (lathe, milling machine, grinding machine etc.).
Description of drawings
Fig. 1 is the structural representation of first kind of brake system of the present invention;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is that the position of first kind of brake system glancing impact of the present invention concerns scheme drawing;
Fig. 4 is the right elevation of Fig. 3;
Fig. 5 is the partial enlarged drawing of first kind of brake system of the present invention;
Fig. 6 is the structural representation of second kind of brake system of the present invention;
Fig. 7 is the right elevation of Fig. 6;
Fig. 8 is that the position of second kind of brake system glancing impact of the present invention concerns scheme drawing;
Fig. 9 is the right elevation of Fig. 8;
Figure 10 is the partial enlarged drawing of second kind of brake system of the present invention;
Figure 11 is the structural representation of electric ball screw load push-pull of the present invention;
Figure 12 is the right elevation of Figure 11;
Figure 13 is second kind of structural representation of the waist shaped hole of first kind of brake system of the present invention.
Reference numeral is as follows:
The 1-rotor plate, 2-braking screw, 3-brake caliper, 4-controller, the 5-turning cylinder, 6-brake disc, 7-driving motor, 8-limit base, 9-translation pull bar, 10-waist shaped hole, 11-bearing pin, the backguy of 12-emergency braking, the 13-brake plate, 14-leading screw, 15-nut, the 16-stop-off nut, 17-brake rod, 18-brake silpper, 19-backguy dop, 20-brake push rod, 21-wedge block, the 22-fixed block, 23-unthreaded hole, 24-motor output shaft, 25-pressure bearing pair, the spacing pillow block of 26-, 27-limiting stopper, the 28-position-limited trough, 29-cover of dust, 30-bearing chamber, the 31-permanent magnet, 32-Hall element, 33-centre hole.
The specific embodiment
Core of the present invention is the electric ball screw load push-pull, and referring to Figure 11 and Figure 12, the electric ball screw load push-pull comprises driving motor, controller, runner assembly, translation assembly, position transduser; Runner assembly comprises bearing chamber, leading screw, is arranged on the pressure bearing pair in the bearing chamber; One end of leading screw is provided with outside thread, and its other end is connected with the driving motor output shaft, on its middle part circumference face the spacing pillow block vertical with the leading screw axis direction is set; Spacing pillow block is arranged in the bearing chamber, and two pressure bearings of pressure bearing pair are separately positioned on two sides of spacing pillow block; The translation assembly comprises limit base, be arranged on translation pull bar in the limit base, can be combined into the nut of ball screw assembly, with leading screw; The external part of translation pull bar is connected with executive device, and the other end of translation pull bar is provided with blind hole, and nut is embedded in the blind hole; Limit base is provided with and can comes and goes the centre hole that moves for the translation pull bar; Driving motor is fixed on a side of bearing chamber, and limit base is fixed on the opposite side of bearing chamber; Position transduser comprises at least two Hall elements and a permanent magnet; Permanent magnet is fixed on the circumference side of translation pull bar, and Hall element is fixed on the limit base and the corresponding position of permanent magnet, and the output signal of Hall element is sent into controller; Driving motor can adopt stepping motor or servomotor.
If translation pull bar right-hand member bonded assembly executive device can not limit the rotation of translation pull bar, the limiting stopper of two evaginations then need be set in the circumference side of translation pull bar, on limit base, be provided with simultaneously and can supply two two position-limited troughs that limiting stopper horizontally slips; Utilize position-limited trough and limiting stopper to limit the rotation of translation pull bar, make it can only translation in centre hole.
The principle of work of electric ball screw load push-pull: after control signal was sent into driving motor, motor rotated, and because of spacing pillow block is limit by the pressure bearing pair, screw mandrel can only rotate can not translation; Because the limited groove of limiting stopper is limit, perhaps the translation pull bar is performed device and limits, and the rotation of screw mandrel can only drive the translation pull bar and move along the centre hole of limit base, thereby drives the executive device with the interlock of translation pull bar external part; After the motion of translation pull bar put in place, Hall element was sensed the permanent magnet magnetic force line signal that moves simultaneously with the translation pull bar, and output signal is sent into controller, thus the switch of control driving motor.
First kind of electric brake system of the present invention referring to Fig. 1 to Fig. 5, comprises brake disc, brake caliper, is arranged on two brake plates, electric ball screw load push-pull, the executive device of brake disc two sides; Executive device comprises brake rod, rotor plate, be arranged on braking screw on the brake caliper, can be combined into the stop-off nut of braking ball screw assembly, with braking screw; The free end of rotor plate and translation pull bar are hinged; The other end of rotor plate is vertical with braking screw to be connected, and stop-off nut is embedded in the inner end surface of brake rod, and the external part of brake rod contacts with the non-operative end surface of one of them brake plate.
The working process of first kind of electric brake system: the free end that the outside motion of translation of translation pull bar drives the rotor plate of executive device rotates, thereby the turning cylinder of rotor plate is a braking screw to rotate, the rotation of braking screw converts the translation of brake rod to, the translation of brake rod promotes the close and friction brake disk of brake plate, produces braking effect; Need to finish glancing impact, the translation pull bar is reversed in the centre hole of driving motor withdrawal limit base of rotation, drives the free end backward rotation of rotor plate, thus the counter-rotating of braking screw mandrel, the brake rod withdrawal, brake plate is away from brake disc, end of braking.
When first kind of electric brake system is applied to car brakeing, also the emergency braking backguy must be set; At this moment, the free end of rotor plate need be provided with a waist shaped hole consistent with the drive link sense of motion, and drive link is provided with the bearing pin that matches with waist shaped hole, and an end of emergency braking backguy is fixed on the free end of rotor plate.When the other end of emergency braking backguy when pulled, the free end of emergency braking backguy pulling rotor plate clockwise rotates, therefore the bearing pin of translation pull bar is positioned at the lower end of rotor plate waist shaped hole the time, the rotation of rotor plate is not subjected to the restriction of translation pull bar, then the emergency braking backguy can drive the rotational lead screw motion, realizes emergency braking.
Second kind of electric brake system of the present invention referring to Fig. 6 to Figure 10, comprises brake disc, brake caliper, is arranged on two brake plates, electric ball screw load push-pull, the executive device of brake disc two sides; Executive device comprises wedge block that is arranged in the brake caliper and fixed block and the brake silpper that is separately positioned on the wedge block both sides, wedge block comprises identical and centrosymmetric inclined-plane, two oblique angles, fixed block and brake silpper are provided with an inclined-plane at identical oblique angle, the external part of the large end face of wedge block and translation pull bar is connected, and side relative with the inclined-plane on the brake silpper contacts with one of them brake plate.
The working process of second kind of electric brake system: the outside motion of translation of translation pull bar promotes the wedge block of executive device towards the separately direction motion of fixed block and brake silpper, motionless because of fixed block, then brake silpper is promoted to move along the direction vertical with the wedge sense of motion by the inclined-plane of wedge block; Brake silpper directly promotes the close and friction brake disk of brake plate, produces braking effect; Need to finish glancing impact, the translation pull bar is reversed in the centre hole of driving motor withdrawal limit base of rotation, drives the wedge block counter motion, and brake silpper is braked sheet and pushes back, end of braking.
When second kind of electric brake system is applied to car brakeing, also the emergency braking backguy must be set; Can be provided with unthreaded hole this moment at the large end face of wedge block, and the external part of translation pull bar is the brake push rod that stretches into unthreaded hole; One end of emergency braking backguy is fixed on the small end face of wedge block.When the needs emergency braking, the backguy of pulling emergency braking, the backguy dop drives wedge block towards the separately direction motion of fixed block and brake silpper, because brake push rod is to stretch in the unthreaded hole and be not connected with unthreaded hole, so the motion of wedge block is not subjected to the restriction of translation pull bar, the Motion Transmission of wedge block produces the emergency braking effect to brake plate.

Claims (7)

1. electric brake system comprises brake disc, brake caliper (3), is arranged on two brake plates (13), actuating device, the executive device of brake disc (6) two sides, and described actuating unit can promote brake plate (13) action under the driving of actuating device; It is characterized in that:
Described actuating device is for being arranged on the electric ball screw load push-pull on the brake caliper (3), and described electric ball screw load push-pull comprises driving motor (7), controller (4), runner assembly, translation assembly, position transduser;
Described runner assembly comprises bearing chamber (30), leading screw (14), is arranged on the pressure bearing pair (25) in the bearing chamber (30); One end of described leading screw (14) is provided with outside thread, and its other end is connected with driving motor output shaft (24), on its middle part circumference face the spacing pillow block (26) vertical with leading screw (14) axis direction is set; Described spacing pillow block (26) is arranged in the bearing chamber (30), and two pressure bearings of described pressure bearing pair (25) are separately positioned on two sides of spacing pillow block (26);
Described translation assembly comprises limit base (8), be arranged on translation pull bar (9) in the limit base (8), can be combined into the nut (15) of ball screw assembly, with leading screw (14); The external part of described translation pull bar (9) is connected with executive device, and the other end of described translation pull bar (9) is provided with blind hole, and described nut (15) is embedded in the blind hole; Described limit base (8) is provided with and can comes and goes the centre hole (33) that moves for translation pull bar (9);
Described driving motor (7) is fixed on a side of bearing chamber (30), and described limit base (8) is fixed on the opposite side of bearing chamber (30);
Described position transduser comprises at least two Hall elements (32) and a permanent magnet (31); Described permanent magnet (31) is fixed on the circumference side of translation pull bar (9), and described Hall element (32) is fixed on the last and corresponding position of permanent magnet (31) of limit base (8), and the output signal of described Hall element (32) is sent into controller (4).
2. electric brake system according to claim 1 is characterized in that: described executive device comprises brake rod (17), rotor plate (1), be arranged on braking screw (2) on the brake caliper (3), can be combined into the stop-off nut (16) of braking ball screw assembly, with braking screw (2); The free end of described rotor plate (1) is connected with translation pull bar (9); The other end of described rotor plate (1) and vertical being connected of braking screw (2), described stop-off nut (16) is embedded in the inner end surface of brake rod (1 7), and the external part of described brake rod (17) contacts with the non-operative end surface of one of them brake plate (13).
3. electric brake system according to claim 2 is characterized in that: described electric brake system comprises emergency braking backguy (12); The free end of described rotor plate (1) is provided with the waist shaped hole consistent with the drive link sense of motion (10), and described drive link is provided with the bearing pin (11) that matches with waist shaped hole, and an end of described brake pulling wire is fixed on the free end of rotor plate (1).
4. electric brake system according to claim 1, it is characterized in that: described executive device comprises the wedge block (21) that is arranged on (3) in the brake caliper, and the fixed block (22) and the brake silpper (18) that are separately positioned on wedge block (21) both sides, described wedge block (21) comprises identical and centrosymmetric inclined-plane, two oblique angles, described fixed block (22) and brake silpper (18) are provided with an inclined-plane at identical oblique angle, the large end face of described wedge block (21) is connected with the external part of translation pull bar (9), and described brake silpper (18) is gone up the side relative with the inclined-plane and contacted with one of them brake plate (13).
5. electric brake system according to claim 4 is characterized in that: described electric brake system comprises emergency braking backguy (12); The large end face of described wedge block (21) is provided with unthreaded hole (23), and the external part of described translation pull bar (9) is for stretching into the brake push rod (20) of unthreaded hole (23); One end of described emergency braking backguy (12) is fixed on the small end face of wedge block (21).
6. according to claim 1 or 2 or 3 or 4 or 5 described electric brake systems, it is characterized in that: the circumference side of described translation pull bar (9) is provided with the limiting stopper (27) of two evaginations; Described limit base (8) is provided with and can comes and goes two position-limited troughs 28 that slide for two limiting stoppers (27).
7. electric brake system according to claim 6 is characterized in that: described driving motor (7) is stepping motor or servomotor.
CN200910254596.7A 2009-12-20 2009-12-20 Electric braking system Active CN101767575B (en)

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Application Number Priority Date Filing Date Title
CN200910254596.7A CN101767575B (en) 2009-12-20 2009-12-20 Electric braking system

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Application Number Priority Date Filing Date Title
CN200910254596.7A CN101767575B (en) 2009-12-20 2009-12-20 Electric braking system

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CN101767575A true CN101767575A (en) 2010-07-07
CN101767575B CN101767575B (en) 2014-10-29

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102328552A (en) * 2011-07-11 2012-01-25 江苏金陵体育器材股份有限公司 Stand roller braking device
CN102628752A (en) * 2012-03-23 2012-08-08 中国农业大学 Third drum mechanism of slide type automobile drum experiment bench
CN103062256A (en) * 2013-02-02 2013-04-24 江苏武东机械有限公司 Cone-shaped disc brake
CN103100954A (en) * 2011-11-09 2013-05-15 大亚科技股份有限公司 Sanding machine and brake protection device for same
CN103148216A (en) * 2013-03-28 2013-06-12 陈奇 Parking braking mechanism used for automotive transmission
CN103465880A (en) * 2013-10-08 2013-12-25 鲍智扬 Carriage wheel system by using wedge block for friction type locking
CN107448520A (en) * 2017-09-26 2017-12-08 浙江师范大学 A kind of electric mechanical brake-by-wire device
CN107975553A (en) * 2017-12-18 2018-05-01 西安蒜泥电子科技有限责任公司 A kind of electro-magnetic braking device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357522A (en) * 1965-10-01 1967-12-12 Gen Motors Corp Parking brake mechanism for disk brakes
US5020643A (en) * 1988-10-03 1991-06-04 Motion Control Industries, Inc. Floating friction brake
CN2356313Y (en) * 1998-12-10 1999-12-29 吉林工业大学 Electronic discrete clutch displacement sensor
FR2849136B1 (en) * 2002-12-20 2006-09-01 Bosch Gmbh Robert DISC BRAKE MOTOR WITH RETRACTION OF WEAR, AND DISC BRAKE EQUIPPED WITH SUCH ENGINE
CN100469633C (en) * 2004-03-29 2009-03-18 赵韩龙 Brake actuating apparatus using an electric motor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102328552B (en) * 2011-07-11 2013-04-17 江苏金陵体育器材股份有限公司 Stand roller braking device
CN102328552A (en) * 2011-07-11 2012-01-25 江苏金陵体育器材股份有限公司 Stand roller braking device
CN103100954B (en) * 2011-11-09 2015-10-28 大亚人造板集团有限公司 Sander braking protection device and sander
CN103100954A (en) * 2011-11-09 2013-05-15 大亚科技股份有限公司 Sanding machine and brake protection device for same
CN102628752A (en) * 2012-03-23 2012-08-08 中国农业大学 Third drum mechanism of slide type automobile drum experiment bench
CN103062256A (en) * 2013-02-02 2013-04-24 江苏武东机械有限公司 Cone-shaped disc brake
CN103062256B (en) * 2013-02-02 2015-11-18 江苏武东机械有限公司 Taper disk type braker
CN103148216B (en) * 2013-03-28 2015-06-17 合肥工业大学 Parking braking mechanism used for automotive transmission
CN103148216A (en) * 2013-03-28 2013-06-12 陈奇 Parking braking mechanism used for automotive transmission
CN103465880A (en) * 2013-10-08 2013-12-25 鲍智扬 Carriage wheel system by using wedge block for friction type locking
CN103465880B (en) * 2013-10-08 2015-09-23 江苏骆氏减震件有限公司 A kind of wedge that utilizes is to carry out the Wheeling System of friction-type locking
CN107448520A (en) * 2017-09-26 2017-12-08 浙江师范大学 A kind of electric mechanical brake-by-wire device
CN107448520B (en) * 2017-09-26 2019-03-22 浙江师范大学 A kind of electric mechanical brake-by-wire device
CN107975553A (en) * 2017-12-18 2018-05-01 西安蒜泥电子科技有限责任公司 A kind of electro-magnetic braking device

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