CN203161909U - Brake caliper assembly of electronic parking brake system for vehicle - Google Patents
Brake caliper assembly of electronic parking brake system for vehicle Download PDFInfo
- Publication number
- CN203161909U CN203161909U CN 201220644899 CN201220644899U CN203161909U CN 203161909 U CN203161909 U CN 203161909U CN 201220644899 CN201220644899 CN 201220644899 CN 201220644899 U CN201220644899 U CN 201220644899U CN 203161909 U CN203161909 U CN 203161909U
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- parking
- assembly
- brake caliper
- screw rod
- braking clamp
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Abstract
The utility model discloses a brake caliper assembly of an electronic parking brake system for a vehicle. The brake caliper assembly comprises an actuating mechanism assembly and a parking brake caliper, wherein the actuating mechanism assembly is arranged at the head of the parking brake caliper, and connected with the parking brake caliper through a bolt; the parking brake caliper comprises a brake caliper body, a parking screw sleeve, a parking screw, a piston and friction sheets; and an anti-friction sheet is arranged at the end part of the parking screw. The anti-friction sheet aims at solving the problems that axial spatial arrangement of the parking brake caliper assembly is not facilitated due to the fact that an axial space is difficult to shorten, and the product competitiveness is reduced due to the high research and development and manufacturing cost when a needle roller thrust bearing is used in the prior art; the axial size can be shortened obviously, so that an axial arrangement space of the parking brake caliper assembly is reduced; the cost of parts is lowered; an assembly technique of a product is improved; and the brake caliper assembly has the advantages that the complete vehicle kerb mass is reduced relatively.
Description
Technical field
The utility model is applied to the vehicle chassis system, belongs to vehicle with electric brake system manufacturing technology field, specifically, relates to the brake caliper assembly that vehicle is used electronic brake system.The vehicle that the utility model is related includes but not limited to petrol engine vehicle, diesel-engine road vehicle, Natural gas vehicles, methanol fuel vehicle, motor vehicle driven by mixed power and pure electric vehicle etc.
Background technique
At present, use in the electric brake system manufacturing technology field at vehicle, parking braking system field particularly, the application of electronic brake system more and more widely, especially quite general in the application of European and American areas electronic brake system, and to the direction of electronics parking system as the vehicle standard configuration developed.Domestic electronics Parking is in recent years also in fast development, the requirement of all having considered electronics Parking configuration in grinding vehicle of each big main engine factory.
Electronic brake system generally is divided into two kinds of structural types, and a kind of is the electronic brake system of drag-line, and described drag-line parking braking system is made of Parking switch, Parking control and Executive Module assembly, brake cable and Parking Brake usually.This kind wire grip formula electronics parking system exist Parking usefulness low, can not directly controlled wheel, the function expansion is limited, inconvenient, the long-time Parking of control was easily lost efficacy, dynamic uneven about Parking, shortcoming that service brake is dawdled, brake cable low temperature easily freezes etc. can't overcome, especially single electric system left and right wheels is subjected to an Electric Machine Control simultaneously, the situation that can cause Parking to be lost efficacy in case motor breaks down.The application of the electronics parking system of this kind form atrophy gradually.
Another kind is the integrated type electrical parking system, and the electronics parking system of this kind form is the direction of electronic brake system development, and it is incorporated into motor and brake caliper together, and controller is independently controlled left and right sides brake calipers respectively, and security of system is higher; Owing to be directly to control brake calipers, system response time is faster; Transmission link in the middle of integrated actuator design has reduced, the reliability of assurance system; The independent left and right controlling method makes system also can guarantee the Parking reliability under the prerequisite of partial fault, increases vehicle Parking safety; System has more control function automatically, has improved ride comfort.Because the plurality of advantages of integrated type electrical Parking, so its market application foreground is in rising trend.
Integrated type electrical parking system of the prior art is made up of control unit, Parking switch and Parking final controlling element usually, and wherein the Parking final controlling element is important power unit.The Parking final controlling element is made of actuating mechanism assembly and parking braking clamp usually, wherein the direct current generator output torque in the actuating mechanism assembly through synchronous belt drive mechanism and involute planetary gear gear drive slow down increase turn round after, transfer straight line motion by the slip screw driving mechanism in the parking braking clamp to rotatablely moving, the mode that adopts the Parking swivel nut to promote piston and friction plate clamps braking to brake disc.In the parking braking process, in order to improve the Parking output clamping force of brake caliper, use a kind of needle roller thrust bearing to realize antifriction and raising output clamping force in the stopping caliper in the present integrated form Parking final controlling element, but there are many technical problems in this integrated type electrical parking system:
1, the needle roller thrust bearing axial dimension in the integrated type electrical parking system of the prior art shortens difficulty, is unfavorable for the shortening of stopping caliper axial dimension, and then is unfavorable for the layout of stopping caliper axial space.
Present development along with electronics Parking technology, one of them development trend is exactly from the lighter A level of run-of-the-mill, the B level, C level car field is developed to quality heavier big SUV and MPV direction, this just requires the electronics Parking can export higher clamping force, require the bearing capacity of its affiliated component to promote synchronously simultaneously, and one of means that generally improve bearing capacity as the needle roller thrust bearing of one of vital part are exactly to strengthen the needle roller diameter, the axial dimension of needle bearing is increased, be unfavorable for the shortening of stopping caliper axial dimension, and then be unfavorable for the layout of stopping caliper axial space.
2, the needle roller thrust bearing relative cost height in the integrated type electrical parking system of the prior art drives whole electronics parking system cost and rises, and is unfavorable for that the market competitiveness promotes.
Because needle roller thrust bearing is important precision drive part, its intensity of having relatively high expectations, wear resistance, efficient and reliability, so its research and development are relative with cost of production higher, are unfavorable for that the competitiveness of product in market promotes.
3, integrated type electrical parking system assembling process of products inconvenience of the prior art causes misloading, neglected loading problem easily, increases the failure probability of product.
The use of needle roller thrust bearing at present normally two pads (roller raceway) and needle bearing is used, therefore just require the order of pad and needle roller assembling can not be wrong when producing assembling, requirement simultaneously can not the neglected loading pad, otherwise all can cause the problem of misloading, neglected loading, increase the probability that product lost efficacy because of assembling.
The model utility content
Technical problem to be solved in the utility model is, the needle roller thrust bearing that adopts in the stopping caliper at present integrated type electrical Parking final controlling element exists axial dimension to shorten difficulty and is unfavorable for technical problems such as axial space is arranged, the high shortage of the research and development manufacture cost market competitiveness, assembling process of products difference, and the brake caliper assembly of vehicle with electronic brake system is provided.
Technical conceive of the present utility model is, on the basis of original integrated type electrical Parking final controlling element, in conjunction with following light-weighted development trend, evade above-mentioned because the drawback that needle bearing brings, and design a kind of brake caliper assembly of new electronic brake system, the antifriction sheet that utilizes existing new material and new technology development to come out substitutes the needle roller thrust bearing in the former parking braking clamp, namely cooperate at antifriction sheet of Parking screw head flange plate assembling and braking clamp body inner bottom surface, because this antifriction sheet is to employ new technology, new process is made, usually integral surface sprays teflon, materials such as molybdenum disulfide or modification composite coating, therefore has the intensity height, the advantage that wear resistance is good, the axial dimension of comparing the end face bearing with needle roller thrust bearing is little, and it is consistent with needle roller thrust bearing that transmission efficiency keeps, and then solved the axial space shortening difficulty of using needle roller thrust bearing to cause, the cost height, problems such as assembly process process difference.
Technological scheme provided by the utility model is, the vehicle brake caliper assembly of electronic brake system, comprise actuating mechanism assembly and parking braking clamp, described actuating mechanism assembly is arranged in described parking braking clamp head, described actuating mechanism assembly and described parking braking clamp interconnect by screw, described parking braking clamp comprise braking clamp body, the Parking swivel nut, the Parking screw rod, piston and friction plate, described brake disc is arranged between the described friction plate, described Parking screw rod cooperates with described Parking swivel nut, is provided with the antifriction apparatus of the origin or beginning spherical bearing effect of laminar minimizing surface of contact friction torque in the end of described Parking screw rod.
Described antifriction apparatus is the antifriction sheet, and described antifriction sheet contacts with described Parking screw rod, the friction torque between minimizing and the described Parking screw rod surface of contact.
Be provided with circular hole in the middle of the described antifriction sheet, described antifriction sheet is assemblied in described Parking screw head by the circular hole of centre.
Described antifriction sheet one side contacts cooperation with Parking screw rod flanged surface, and opposite side contacts cooperation with the interior bottom plane of braking clamp body.
Described antifriction sheet material is metal material or novel high-strength wear resistance plastics, and described antifriction sheet local surfaces or integral surface are provided with coating layer, and described coating layer is teflon, molybdenum disulfide, graphite or other composite coating.
Described actuating mechanism assembly comprises that motor, electrical machine belt pulley, belt, toothed belt wheel assembly, planetary gear train reducing gear, upper shell, lower shell body constitute, described electrical machine belt pulley links to each other with described toothed belt wheel assembly by belt, and described toothed belt wheel assembly and planetary gear train reducing gear carry out transmission by transmission shaft.
The double reduction mechanism that described planetary gear train reducing gear is made of some central gears, gear ring, output shaft assembly, described toothed belt wheel assembly drives the gear for two stage planetary gear train reducing gear in the compound gear ring that is fixed on the lower shell body by the profile of tooth transmission shaft, described gear for two stage planetary gear train reducing gear is output as the rotation of planet carrier, and described planet carrier is as the output shaft assembly.
Described parking braking clamp comprise braking clamp body, the antifriction sheet, piston packing, the Parking swivel nut, the Parking screw rod, piston and friction plate, rotatablely move by being connected input by spline between Parking screw rod and the output shaft assembly between described planetary gear train reducing gear and the parking braking clamp, and the Parking screw rod, the Parking swivel nut then will rotatablely move and be converted into straight line motion, the conical surface of described Parking swivel nut cooperates with piston, promote piston-advance, described piston is outside to be contacted with friction plate, friction plate is contained on the support, brakes thereby be free to slide the clamping brake disc along the piston centerline direction.
Adopt technological scheme provided by the utility model, can effectively solve some problems of using needle roller thrust bearing to cause in the existing integrated form parking braking pincers, on the one hand because the use of needle roller thrust bearing need increase the pad of two carryings, especially when increasing bearing capacity, generally playing axial size needs obviously to increase, and then increased the axial length of parking braking clamp, be unfavorable for the layout of parking braking clamp on axial space, directly cause the parking braking clamp to arrange sometimes, and new antifriction sheet is an end face bearing in essence, and its axial space can shorten; On the other hand, needle roller thrust bearing belongs to accurate carrying component, and its research and development, cost of making are lacked competitiveness in the fierce competitive market environment also than higher, and the end face bearing is compared the cost of needle roller thrust bearing and can be reduced; Simultaneously owing to the use owing to needle roller thrust bearing in the product assembly process need be assembled two pads and a bearing together, and it has the requirement of assemble sequence, cause procedure quality control difficulty to increase, problem probability of happening such as the misloading that causes because of assembling, neglected loading will increase, and only use an end face bearing these problems then can not occur; In addition, adopt technological scheme provided by the utility model, can also reduce the quality of part and then reduce complete vehicle curb weight, be conducive to the realization of automobile lightweight target.There is the antifriction sheet to come bearing axial pushing force between described braking clamp body and the Parking screw rod, is assemblied in Parking screw head and braking clamp body inner bottom surface, substitute original needle roller thrust bearing, for reducing the face friction torque between Parking screw rod and the braking clamp body.Described antifriction sheet is through special processing, keeps and the same performance of needle roller thrust bearing in intensity, efficient and wear resistance, has simultaneously that axial dimension is little, in light weight, cost is low, is easy to advantage such as assembling.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the utility model structural representation;
Wherein, 1. lower shell body, 2. motor, 3. upper shell, 4. belt, 5. electrical machine belt pulley, 6. supporting frame, 7. gear ring, 8. toothed belt wheel body, 9. transmission shaft, 10. toothed belt wheel assembly, 11. centrepins, 12. central gear, 13. planetary gear train reducing gears, 14. output shaft assemblies, 15. antifriction sheets, 16. the Parking screw rod, 17. Parking swivel nuts, 18. piston packings, 19. pistons, 20. brake disc, 21. friction plates, 22, braking clamp body.
Embodiment
As shown in Figure 1, technological scheme provided by the utility model is, the vehicle brake caliper assembly of electronic brake system, comprise actuating mechanism assembly and parking braking clamp, described actuating mechanism assembly is arranged in described parking braking clamp head, described actuating mechanism assembly and described parking braking clamp interconnect by screw, described parking braking clamp comprise braking clamp body 22, Parking swivel nut 17, Parking screw rod 16, piston 19 and friction plate 21, described brake disc 20 is arranged between the described friction plate 21, described Parking screw rod 16 cooperates with described Parking swivel nut 17, is provided with the antifriction apparatus of the origin or beginning spherical bearing effect of laminar minimizing surface of contact friction torque in the end of described Parking screw rod 16.Described antifriction apparatus is antifriction sheet 15, and described antifriction sheet 15 contacts with described Parking screw rod 16, the friction torque between minimizing and described Parking screw rod 16 surface of contact.Be provided with circular hole in the middle of the described antifriction sheet 15, described antifriction sheet 15 is assemblied in described Parking screw rod 16 heads by the circular hole of centre.Described antifriction sheet one side contacts cooperation with Parking screw rod 16 flanged surfaces, and opposite side contacts cooperation with braking clamp body 22 interior bottom planes.Described antifriction sheet 15 materials are metal material or novel high-strength wear resistance plastics, and described antifriction sheet 15 local surfaces or integral surface are provided with coating layer, and described coating layer is teflon, molybdenum disulfide, graphite or other composite coating.
Technological scheme vehicle provided by the utility model comprises actuating mechanism assembly and parking braking clamp with the brake caliper assembly of electronic brake system.Described actuating mechanism assembly is arranged in upper shell 3 and the lower shell body 1 formed semi-enclosed zone, described actuating mechanism assembly comprises power plant and transmitting set, described power plant are motor 2, and described motor 2 is provided with electrical machine belt pulley 5, and described motor 2 is located at a side of described lower shell body 1.Described transmitting set comprises that belt 4, toothed belt wheel assembly 10, planetary gear train reducing gear 13 constitute.Described planetary gear train reducing gear 13 is the double reduction mechanisms that are made of some central gears 12, gear ring 7, output shaft assembly 14.Described electrical machine belt pulley 5 links to each other with described toothed belt wheel assembly 10 by belt 4, and described toothed belt wheel assembly 10 carries out transmission with planetary gear train reducing gear 13 by transmission shaft 9.Described gear for two stage planetary gear train reducing gear 13 output movements are the rotation of planet carrier, and described planet carrier is output shaft assembly 14.Described actuating mechanism assembly is connected with described parking braking clamp, described parking braking clamp comprise braking clamp body 22, antifriction sheet 15, Parking screw rod 16, Parking swivel nut 17, piston 19 and friction plate 21, and described output shaft assembly 14 rotatablely moving of output are converted into straight line motion through the Parking screw rod 16 among the parking braking clamp and Parking swivel nut 17.Pass through spline fitted between described Parking screw rod 16 and the output shaft assembly 14, the conical surface of described Parking swivel nut 17 cooperates with piston 19, promoting piston 19 advances, described piston 19 outsides contact with friction plate 21, friction plate 21 is contained on the support, can be free to slide along piston 19 centerline directions, thereby realize that Parking clamps action.
Above-mentioned mode of execution is used for the utility model of explaining; rather than to unique restriction of the present utility model; the related variation scheme of carrying out on the basis of technical conceive of the present utility model is all in protection domain of the present utility model; any use that model utility is made is revised and change, all fallen within the protection domain of the present utility model.
Claims (8)
1. vehicle is with the brake caliper assembly of electronic brake system, comprise actuating mechanism assembly and parking braking clamp, described actuating mechanism assembly is arranged in described parking braking clamp head, described actuating mechanism assembly and described parking braking clamp interconnect by screw, it is characterized in that, described parking braking clamp comprise braking clamp body (22), Parking swivel nut (17), Parking screw rod (16), piston (19) and friction plate (21), described brake disc (20) is arranged between the described friction plate (21), described Parking screw rod (16) cooperates with described Parking swivel nut (17), is provided with the antifriction apparatus of laminar origin or beginning spherical bearing effect in the end of described Parking screw rod (16).
2. vehicle according to claim 1 is with the brake caliper assembly of electronic brake system, it is characterized in that, described antifriction apparatus is antifriction sheet (15), described antifriction sheet (15) contacts with described Parking screw rod (16), the friction torque between minimizing and described Parking screw rod (16) surface of contact.
3. vehicle according to claim 1 and 2 is with the brake caliper assembly of electronic brake system, it is characterized in that, be provided with circular hole in the middle of the described antifriction sheet (15), described antifriction sheet (15) is assemblied in described Parking screw rod (16) head by the circular hole of centre.
4. vehicle according to claim 3 is characterized in that with the brake caliper assembly of electronic brake system described antifriction sheet one side contacts cooperation with Parking screw rod (16) flanged surface, and opposite side contacts cooperation with the interior bottom plane of braking clamp body (22).
5. vehicle according to claim 4 is with the brake caliper assembly of electronic brake system, it is characterized in that, described antifriction sheet (15) material is metal material or wear resistance plastics, described antifriction sheet (15) local surfaces or integral surface are provided with coating layer, and described coating layer is teflon or molybdenum disulfide or graphite.
6. vehicle according to claim 5 is with the brake caliper assembly of electronic brake system, it is characterized in that, described actuating mechanism assembly comprises that motor (2), electrical machine belt pulley (5), belt (4), toothed belt wheel assembly (10), planetary gear train reducing gear (13), upper shell (3), lower shell body (1) constitute, described electrical machine belt pulley (5) links to each other with described toothed belt wheel assembly (10) by belt (4), and described toothed belt wheel assembly (10) carries out transmission with planetary gear train reducing gear (13) by transmission shaft (9).
7. vehicle according to claim 6 is with the brake caliper assembly of electronic brake system, it is characterized in that, described planetary gear train reducing gear (13) is by some central gears (12), gear ring (7), the double reduction mechanism that output shaft assembly (14) constitutes, described toothed belt wheel assembly (10) drives the gear for two stage planetary gear train reducing gear (13) in the compound gear ring (7) that is fixed on the lower shell body (1) by profile of tooth transmission shaft (9), described gear for two stage planetary gear train reducing gear (13) is output as the rotation of planet carrier, and described planet carrier is as output shaft assembly (14).
8. vehicle according to claim 6 is with the brake caliper assembly of electronic brake system, it is characterized in that, described parking braking clamp comprise braking clamp body (22), antifriction sheet (15), piston packing (18), Parking swivel nut (17), Parking screw rod (16), piston (19) and friction plate (21), rotatablely move by being connected input by spline between Parking screw rod (16) and the output shaft assembly (14) between described planetary gear train reducing gear (13) and the parking braking clamp, and Parking screw rod (16), Parking swivel nut (17) then will rotatablely move and be converted into straight line motion, the conical surface of described Parking swivel nut (17) cooperates with piston (19), promoting piston (19) advances, described piston (19) is outside to be contacted with friction plate (21), friction plate (21) is contained on the support, along piston (19) thus centerline direction is free to slide and clamps brake disc (20) and brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644899 CN203161909U (en) | 2012-11-29 | 2012-11-29 | Brake caliper assembly of electronic parking brake system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644899 CN203161909U (en) | 2012-11-29 | 2012-11-29 | Brake caliper assembly of electronic parking brake system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161909U true CN203161909U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220644899 Withdrawn - After Issue CN203161909U (en) | 2012-11-29 | 2012-11-29 | Brake caliper assembly of electronic parking brake system for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161909U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966686A (en) * | 2012-11-29 | 2013-03-13 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly of electronic parking brake system for vehicle |
| CN104565131A (en) * | 2013-10-25 | 2015-04-29 | 现代摩比斯株式会社 | Brake apparatus for vehicle |
| CN107869534A (en) * | 2016-09-23 | 2018-04-03 | 波克兰液压工业设备公司 | A kind of improved brakes for hydraulic press |
| WO2018104649A1 (en) * | 2016-12-07 | 2018-06-14 | Foundation Brakes France | Driver for electromechanical brake caliper piston, comprising a non-friction face |
| CN109707771A (en) * | 2019-03-06 | 2019-05-03 | 芜湖伯特利汽车安全系统股份有限公司 | Brake caliper assy applied to electronic parking |
| CN110745125A (en) * | 2019-11-26 | 2020-02-04 | 李昕颖 | Electronic parking control device |
-
2012
- 2012-11-29 CN CN 201220644899 patent/CN203161909U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966686A (en) * | 2012-11-29 | 2013-03-13 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly of electronic parking brake system for vehicle |
| CN104565131A (en) * | 2013-10-25 | 2015-04-29 | 现代摩比斯株式会社 | Brake apparatus for vehicle |
| CN107869534A (en) * | 2016-09-23 | 2018-04-03 | 波克兰液压工业设备公司 | A kind of improved brakes for hydraulic press |
| WO2018104649A1 (en) * | 2016-12-07 | 2018-06-14 | Foundation Brakes France | Driver for electromechanical brake caliper piston, comprising a non-friction face |
| CN110050137A (en) * | 2016-12-07 | 2019-07-23 | 法国博瑞克基金会 | The driver for dynamo-electric brake caliper piston including anti-friction face |
| US11143252B2 (en) | 2016-12-07 | 2021-10-12 | Foundation Brakes France | Driver for electromechanical brake caliper piston, comprising a non-friction face |
| CN109707771A (en) * | 2019-03-06 | 2019-05-03 | 芜湖伯特利汽车安全系统股份有限公司 | Brake caliper assy applied to electronic parking |
| CN110745125A (en) * | 2019-11-26 | 2020-02-04 | 李昕颖 | Electronic parking control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20151007 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |