CN203651743U - Vacuum booster brake system - Google Patents

Vacuum booster brake system Download PDF

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Publication number
CN203651743U
CN203651743U CN201320767941.9U CN201320767941U CN203651743U CN 203651743 U CN203651743 U CN 203651743U CN 201320767941 U CN201320767941 U CN 201320767941U CN 203651743 U CN203651743 U CN 203651743U
Authority
CN
China
Prior art keywords
hydraulic
vacuum
input shaft
thrust bearing
platen
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn - After Issue
Application number
CN201320767941.9U
Other languages
Chinese (zh)
Inventor
罗玉龙
周培良
洪杰
胡林勇
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.)
Ningbo Shenglong Automotive Powertrain System Co Ltd
Original Assignee
Ningbo Shenglong Automotive Powertrain System Co Ltd
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 Ningbo Shenglong Automotive Powertrain System Co Ltd filed Critical Ningbo Shenglong Automotive Powertrain System Co Ltd
Priority to CN201320767941.9U priority Critical patent/CN203651743U/en
Application granted granted Critical
Publication of CN203651743U publication Critical patent/CN203651743U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a vacuum booster brake system which comprises a vacuum pump (1), a brake booster (2) and a power input shaft (3) connected with an engine, wherein the vacuum pump (1) is connected with the brake booster (2), a pressure sensor (4) used for detecting the vacuum degree in the brake booster (2) is arranged in the brake booster (2), a clutch device is arranged between the power input shaft (3) and a rotor coupler (1.1) of the vacuum pump, the pressure sensor (4) is connected with an electronic control unit (5) of the automobile engine, the clutch device is also connected with a driving device used for driving the clutch device to be separated and closed, and the driving device is connected with the electronic control unit (5) of the automobile engine. The vacuum booster brake system can save resources.

Description

Vacuum auxiliary brake device
Technical field
The utility model relates to brake system, relates to or rather a kind of vacuum auxiliary brake device.
Background technology
On automobile, be substantially all furnished with brake assist system at present, especially the use of vacuum brake force aid system is very universal.Its principle is that the difference of pressure between degree of vacuum and the barometric pressure producing while utilizing engine operation forces rubber diaphragm in brake vacuum assist device to move, and promotes the piston of master brake cylinder, alleviates with this power of stepping on brake pedal.
The vacuum auxiliary brake device of prior art comprises vacuum pump and brake booster.Described vacuum pump provides vacuum source for brake booster.Vacuum pump is connected with driving engine by power input shaft, and driving engine provides power for vacuum pump.Between the power input shaft of the vacuum auxiliary brake device of prior art and the rotor coupling of vacuum pump, be to be connected always, like this after automobile starting, as long as engine operation, vacuum pump just constantly vacuumizes, and in brake system, only in brake, just need to use vacuum source, and as long as the degree of vacuum in brake booster just provides vacuum source without vacuum pump within the scope of regulation.But in the vacuum auxiliary brake device of prior art, as long as engine operation, vacuum pump is just continuously for brake booster provides vacuum source, like this, when vacuum pump is more, just flogging a dead horse always, compared with the power of loss driving engine, also wasting energy simultaneously.
Utility model content
Technical problem to be solved in the utility model is that a kind of vacuum auxiliary brake device that can save the energy is provided.
For solving the problems of the technologies described above, the utility model provides a kind of vacuum auxiliary brake device, comprises vacuum pump, brake booster and the power input shaft being connected with driving engine; Described vacuum pump is connected with described brake booster; In described brake booster, be provided with the pressure sensor for detection of degree of vacuum in described brake booster; Between described power input shaft and the rotor coupling of vacuum pump, be provided with arrangement of clutch; Described pressure sensor is connected with car engine electronic control unit; Described arrangement of clutch also separates with for driving clutch or the actuating device that closes up is connected; Described actuating device is connected with described car engine electronic control unit.
Adopt after above structure, vacuum auxiliary brake device of the present utility model compared with prior art, has the following advantages:
Owing to being provided with arrangement of clutch between the power input shaft of vacuum auxiliary brake device of the present utility model and the rotor coupling of vacuum pump, after automobile starting, when in pressure sensor detects brake booster, degree of vacuum is inadequate, the signal detecting is transferred to car engine electronic control unit by pressure sensor, the actuating device that car engine electronic control unit receives described in signal control afterwards closes up arrangement of clutch, described power input shaft just can drive the rotor coupling of vacuum pump like this, vacuum pump is just started working and is vacuumized, for brake booster provides vacuum source.After degree of vacuum in pressure sensor detects brake booster reaches setting value, contrary, car engine electronic control unit will separate arrangement of clutch by accessory drive, and the rotor coupling of vacuum pump is not driven by power input shaft, and vacuum pump is quit work.Like this, vacuum pump is only worked in needs, thereby can reduce the power consumption of driving engine, also can save the energy simultaneously.
As a kind of improvement of the present utility model, described arrangement of clutch comprises that terminal pad and middle part that release thrust bearing, middle part are provided with through hole are provided with the elastomeric platen of having of through hole; Described terminal pad is linked in outer and this terminal pad of the input shaft of rotor coupling of described vacuum pump and is fixedly connected with described input shaft; Described platen is linked in outside the end of described power input shaft and is fixedly connected with between this platen and power input shaft; Described release thrust bearing is linked in described platen inner ring outer and this release thrust bearing and is connected with described platen; Described terminal pad is equipped with friction lining on the surface relative with platen.Adopt after this kind of structure, engine operation, described power input shaft is followed driving engine work together (i.e. rotation), platen follows power input shaft to rotate together, when vacuum pump need to be worked, be subject to actuating device effect, platen and terminal pad are combined, power input shaft just can drive the input shaft of the rotor coupling of described vacuum pump to rotate together like this, and vacuum pump is started working.In the time that vacuum pump does not need work, actuating device is withdrawn, because having elasticity, platen will get back to initial position, platen will separate with terminal pad, power input shaft just can not drive the input shaft of the patent coupler of vacuum pump to rotate together like this, vacuum air pump inoperative, the arrangement of clutch of this kind of structure is simple in structure, convenient enforcement.
As another kind of improvement of the present utility model, described actuating device comprises transmission oil pump, electromagnetic valve and the hydraulic driver moving towards terminal pad direction for promoting release thrust bearing; The oil circuit of described transmission oil pump is connected with the hydraulic cavities of described hydraulic driver; Described electromagnetic valve is located at the exit of the oil circuit of described transmission oil pump; Described electromagnetic valve is connected with described car engine electronic control unit; Described hydraulic driver is located at the outside of described release thrust bearing.Adopt after this kind of structure, when power-transfer clutch need to close up, when car engine electronic control unit control electromagnetic valve is opened, the oil in transmission oil pump will flow in the hydraulic cavities of hydraulic driver, makes hydraulic driver promote release thrust bearing and moves towards terminal pad direction; In the time that power-transfer clutch need to separate, car engine electronic control unit control transmission oil pump oil return is also controlled closed electromagnetic valve, and the thrust of hydraulic driver will be regained and make disengaging of clutch like this, and this kind of project organization is simple, easily realizes.
Also have one to improve as of the present utility model, described hydraulic driver comprises hydraulic actuating cylinder, piston and pull back spring; Described piston is located in described hydraulic actuating cylinder; Described pull back spring is located between the described end of hydraulic actuating cylinder and a side of piston; The opposite side that is positioned at piston in described hydraulic actuating cylinder is described hydraulic cavities; The outer ring of described release thrust bearing is aimed in one end of described piston.Adopt after this kind of structure, will promote piston towards the motion of release thrust bearing direction in the time having oil pressure in hydraulic cavities, in the time that the oil pressure in hydraulic cavities is withdrawn, release thrust bearing will return.
Also have one to improve as of the present utility model, described hydraulic driver is provided with two, and the two ends up and down of the outer ring of described release thrust bearing are aimed at respectively in one end that these two hydraulic drivers are all located at the described outside of release thrust bearing and the piston of these two hydraulic drivers.Adopt after this kind of structure, can more stably promote release thrust bearing towards the motion of terminal pad direction, so also just more stably promote platen and move towards terminal pad direction.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of vacuum auxiliary brake device of the present utility model.
Fig. 2 is the vacuum pump of vacuum auxiliary brake device of the present utility model and the structural representation of arrangement of clutch part.
Shown in figure: 1, vacuum pump, 1.1, rotor coupling, 1.2, input shaft, 2, brake booster, 3, power input shaft, 4, pressure sensor, 5, car engine electronic control unit, 6, release thrust bearing, 6.1, inner ring, 6.2, outer ring, 7, terminal pad, 8, platen, 9, pressure ring, 10, friction lining, 11, transmission oil pump, 12, electromagnetic valve, 13, hydraulic actuating cylinder, 13.1, hydraulic cavities, 14, piston, 15, pull back spring.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Refer to shown in Fig. 1 and Fig. 2, vacuum auxiliary brake device of the present utility model comprises vacuum pump 1, brake booster 2 and the power input shaft 3 being connected with driving engine.Described vacuum pump 1 is connected with described brake booster 2.In described brake booster 2, be provided with the pressure sensor 4 for detection of described brake booster 2 interior degree of vacuum.Between described power input shaft 3 and the rotor coupling 1.1 of vacuum pump 1, be provided with arrangement of clutch.Described pressure sensor 4 is connected with car engine electronic control unit 5.Described arrangement of clutch also separates with for driving clutch or the actuating device that closes up is connected.Described actuating device is connected with described car engine electronic control unit 5.
Described arrangement of clutch comprises that terminal pad 7 and middle part that release thrust bearing 6, middle part are provided with through hole are provided with the elastomeric platen 8 of having of through hole.Described terminal pad 7 is linked in outer and this terminal pad 7 of the input shaft 1.2 of rotor coupling 1.1 of described vacuum pump 1 and is fixedly connected with described input shaft 1.2, in this specific embodiment, between described terminal pad 7 and input shaft 1.2, pass through flush fit between spline joint and this terminal pad 7 and input shaft 1.2.Described platen 8 is linked in outside the end of described power input shaft 3 and is fixedly connected with between this platen 8 and power input shaft 3, in this specific embodiment, circumferentially spacing by spline between described platen 8 and input shaft 1.2, then carry out circumferentially spacing by pressure ring 9 is set on input shaft 1.2 to platen 8.Described release thrust bearing 6 is linked in described platen 8 inner ring 6.1 outer and this release thrust bearing 6 and is connected with described platen 8.Described terminal pad 7 is equipped with friction lining 10 on the surface relative with platen 8.
Described actuating device comprises transmission oil pump 11, electromagnetic valve 12 and the hydraulic driver moving towards terminal pad 7 directions for promoting release thrust bearing 6.The oil circuit of described transmission oil pump 11 is connected with the hydraulic cavities 13.1 of described hydraulic driver.Described electromagnetic valve is located at the exit of the oil circuit of described transmission oil pump 11.Described electromagnetic valve 12 is connected with described car engine electronic control unit 5.Described hydraulic driver is located at the outside of described release thrust bearing 6.Described hydraulic driver comprises hydraulic actuating cylinder 13, piston 14 and pull back spring 15.Described piston 14 is located in described hydraulic actuating cylinder 13.Described pull back spring 15 is located between the described end of hydraulic actuating cylinder 13 and a side of piston 14.The opposite side that is positioned at piston 14 in described hydraulic actuating cylinder 13 is described hydraulic cavities 13.1.The outer ring 6.2 of described release thrust bearing 6 is aimed in one end of described piston 14.In this specific embodiment, described hydraulic driver is provided with two, and the two ends up and down of the outer ring 6.2 of described release thrust bearing 6 are aimed at respectively in one end that these two hydraulic drivers are all located at the described outside of release thrust bearing 6 and the piston 14 of these two hydraulic drivers.
The principle of work of vacuum auxiliary brake device of the present utility model is as follows:
After automobile starting, in the time that the pressure sensor 4 in brake booster 2 detects that the interior degree of vacuum of brake booster 2 is inadequate, the signal detecting is transferred to car engine electronic control unit 5 by pressure sensor 4.Car engine electronic control unit 5 receives to be controlled electromagnetic valve 12 after signal and opens and control hydraulic cavities 13.1 fuel feeding of transmission oil pump 11 to hydraulic driver.In the time having oil pressure in the hydraulic cavities 13.1 of hydraulic driver, will promote piston 14 towards release thrust bearing 6 direction motions, after the outer ring 6.2 of piston 14 contact separation bearings 6, continue motion, because platen 8 has elasticity, be subject to the impetus of piston 14, the platen 8 of rotation can contact with terminal pad 7, platen 8 rotates and just drives terminal pad 7 to rotate together, thereby drive the input shaft 1.2 of the rotor coupling 1.1 of vacuum pump 1 to rotate together, vacuum pump 1 is just started working and is vacuumized, for brake booster 2 provides vacuum source.
After the degree of vacuum in the brake booster 2 that the pressure sensor 4 in brake booster 2 detects reaches setting value, contrary, car engine electronic control unit 5 can be controlled transmission oil pump 11 oil returns shut electromagnetic valve 12.After the oil pressure in the hydraulic cavities 13.1 of hydraulic driver is withdrawn, be subject to the effect of pull back spring 15, piston 14 will return, has so just cancelled the thrust to release thrust bearing 6 outer rings 6.2.While, platen 8 can be got back to initial position under the effect of the screen resilience of platen 8, and the platen 8 of at this moment rotation can separate with terminal pad 7, and platen 8 no longer drives terminal pad 7 to rotate together, and terminal pad 7 rotates slowly and stops, and vacuum pump 1 slowly quits work.

Claims (5)

1. a vacuum auxiliary brake device, comprises vacuum pump (1), brake booster (2) and the power input shaft (3) being connected with driving engine; Described vacuum pump (1) is connected with described brake booster (2); It is characterized in that: in described brake booster (2), be provided with the pressure sensor (4) for detection of the interior degree of vacuum of described brake booster (2); Between described power input shaft (3) and the rotor coupling (1.1) of vacuum pump, be provided with arrangement of clutch; Described pressure sensor (4) is connected with car engine electronic control unit (5); Described arrangement of clutch also separates with for driving clutch or the actuating device that closes up is connected; Described actuating device is connected with described car engine electronic control unit (5).
2. vacuum auxiliary brake device according to claim 1, is characterized in that: described arrangement of clutch comprises that terminal pad (7) and middle part that release thrust bearing (6), middle part are provided with through hole are provided with the elastomeric platen of having of through hole (8); Described terminal pad (7) is linked in outer and this terminal pad (7) of the input shaft (1.2) of rotor coupling (1.1) of described vacuum pump (1) and is fixedly connected with described input shaft (1.2); Described platen (8) is linked in outside the end of described power input shaft (3) and is fixedly connected with between this platen (8) and power input shaft (3); Described release thrust bearing (6) is linked in described platen (8) inner ring (6.1) outer and this release thrust bearing (6) and is connected with described platen (8); Described terminal pad (7) is equipped with friction lining (10) on the surface relative with platen (8).
3. vacuum auxiliary brake device according to claim 2, is characterized in that: described actuating device comprises transmission oil pump (11), electromagnetic valve (12) and the hydraulic driver moving towards terminal pad (7) direction for promoting release thrust bearing (6); The oil circuit of described transmission oil pump (11) is connected with the hydraulic cavities (13.1) of described hydraulic driver; Described electromagnetic valve (12) is located at the exit of the oil circuit of described transmission oil pump (11); Described electromagnetic valve (12) is connected with described car engine electronic control unit (5); Described hydraulic driver is located at the outside of described release thrust bearing (6).
4. vacuum auxiliary brake device according to claim 3, is characterized in that: described hydraulic driver comprises hydraulic actuating cylinder (13), piston (14) and pull back spring (15); Described piston (14) is located in described hydraulic actuating cylinder (13); Described pull back spring (15) is located between the described end of hydraulic actuating cylinder (13) and a side of piston (14); The opposite side that is positioned at piston (14) in described hydraulic actuating cylinder (13) is described hydraulic cavities (13.1); The outer ring (6.2) of described release thrust bearing (6) is aimed in one end of described piston (14).
5. vacuum auxiliary brake device according to claim 4, it is characterized in that: described hydraulic driver is provided with two, the two ends up and down of the outer ring (6.2) of described release thrust bearing (6) are aimed at respectively in one end that these two hydraulic drivers are all located at the described outside of release thrust bearing (6) and the piston (14) of these two hydraulic drivers.
CN201320767941.9U 2013-11-29 2013-11-29 Vacuum booster brake system Withdrawn - After Issue CN203651743U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320767941.9U CN203651743U (en) 2013-11-29 2013-11-29 Vacuum booster brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320767941.9U CN203651743U (en) 2013-11-29 2013-11-29 Vacuum booster brake system

Publications (1)

Publication Number Publication Date
CN203651743U true CN203651743U (en) 2014-06-18

Family

ID=50918167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320767941.9U Withdrawn - After Issue CN203651743U (en) 2013-11-29 2013-11-29 Vacuum booster brake system

Country Status (1)

Country Link
CN (1) CN203651743U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103640564A (en) * 2013-11-29 2014-03-19 宁波圣龙汽车动力系统股份有限公司 Vacuum boosting brake system
CN105984348A (en) * 2014-11-10 2016-10-05 浙江工业职业技术学院 Proportional controllable braking energy recycling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103640564A (en) * 2013-11-29 2014-03-19 宁波圣龙汽车动力系统股份有限公司 Vacuum boosting brake system
CN103640564B (en) * 2013-11-29 2016-01-20 宁波圣龙汽车动力系统股份有限公司 Vacuum auxiliary brake device
CN105984348A (en) * 2014-11-10 2016-10-05 浙江工业职业技术学院 Proportional controllable braking energy recycling device
CN105984348B (en) * 2014-11-10 2018-07-13 浙江工业职业技术学院 A kind of ratio controlled brake energy retracting device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20140618

Effective date of abandoning: 20160120