CN105235670B - A kind of vacuum assisted hydraulic brake system - Google Patents
A kind of vacuum assisted hydraulic brake system Download PDFInfo
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- CN105235670B CN105235670B CN201510697761.1A CN201510697761A CN105235670B CN 105235670 B CN105235670 B CN 105235670B CN 201510697761 A CN201510697761 A CN 201510697761A CN 105235670 B CN105235670 B CN 105235670B
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- steel pipe
- brake
- braking
- fluid port
- hydraulic fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/58—Combined or convertible systems
- B60T13/581—Combined or convertible systems both hydraulic and pneumatic
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
It include the first driving brake actuator, the second service brake operating mechanism, brake cylinder and brake boost pump the invention discloses a kind of vacuum assisted hydraulic brake system, the vacuum assisted hydraulic brake system that this programme provides can realize braking by operation the first driving brake actuator, also braking can be realized by the second service brake operating mechanism of operation, additionally it is possible to which braking is realized by the first driving brake actuator of operation simultaneously and the second service brake operating mechanism.Trample the first brake pedal and/or the second brake pedal, brake cylinder can be caused to push the piston motion of brake boost pump so that brake boost pump forward, the brake disc of the second service brake operating mechanism braked, to realize braking to tourist coach.The vacuum assisted hydraulic brake system that this programme provides can be realized bi-directional braking, to reduce the security risk that two-way tourist coach uses to a certain extent.
Description
Technical field
The present invention relates to shaped traffic device technical field, in particular to a kind of vacuum assisted hydraulic brake system.
Background technique
Tourist coach is the product that develops according to the market demand, it has unique novel appearance, high configuration, high-performance
The characteristics of (power performance, braking ability, grade climbing performance), low energy consumption, manipulates comfortable, easy to maintain, the advantages that having a safety feature,
It is scenic spot, large-scale recreation ground, park, closing community, holiday village, shopping mall, campus, airport, harbour and harbour etc.
It goes sightseeing the walking-replacing tool of place, workplace.
Tourist coach in the prior art generally has a driver behavior position, with the development of technology, in order to make tourist coach
Driving direction can smoothly be changed in the road section that cannot be turned around or not allow to turn around such as narrow, be capable of the double of bidirectional driving
It comes into being to tourist coach, two-way tourist coach has former and later two operative positions, and driver can both control in preceding operative position and go sight-seeing
The traveling of vehicle, can also be in the form of rear operative position control tourist coach.The braking of two-way tourist coach generally uses vacuum servo liquid
Compacting is dynamic to be realized, but in the prior art the vacuum assisted hydraulic brake of two-way tourist coach can only preceding operative position to tourist coach into
The braking of row brake operating, rear operative position can only be just able to achieve by the braking system of preceding operative position, lead to the trip of bidirectional driving
Looking at the use of vehicle, there are some potential safety problemss.
Therefore, how to realize the braking of bidirectional driving tourist coach Liang Ge steering device, used to reduce two-way tourist coach
Security risk, become those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
In view of this, the present invention provides in a kind of vacuum assisted hydraulic brake system, to realize bidirectional driving tourist coach
The braking of Liang Ge steering device, to reduce the security risk that two-way tourist coach uses.
To achieve the above object, the invention provides the following technical scheme:
A kind of vacuum assisted hydraulic brake system, comprising:
First driving brake actuator, it is described first driving brake actuator on be provided with the first brake pedal, institute
State the first hydraulic fluid port and the second hydraulic fluid port that connection is provided on the first driving brake actuator, first hydraulic fluid port and the first oil can
Connection；
Second service brake operating mechanism is provided with the second brake pedal, institute on the second service brake operating mechanism
State the third hydraulic fluid port and the 4th hydraulic fluid port that connection is provided on the second service brake operating mechanism, the third hydraulic fluid port and the second oil can
Connection；
5th hydraulic fluid port of brake cylinder, the brake cylinder is connected to by the first pipeline with second hydraulic fluid port, the system
6th hydraulic fluid port of dynamic wheel cylinder is connected to by the second pipeline with the 4th hydraulic fluid port, is provided with first piston on the brake cylinder
Bar；
Brake boost pump, and the brake boost pump includes ante-chamber and the back cavity that is communicated with the atmosphere, the ante-chamber and it is described after
Chamber is separated by piston, and the second piston bar of the piston pushes by the First piston bar, and the of the boost pump that brakes
Seven hydraulic fluid ports are connect by third pipeline with first oil can, and the 9th hydraulic fluid port of the brake boost pump passes through the 4th pipeline and institute
The first hydraulic system stated on the first disk brake of the first driving brake actuator is connected to, on the brake boost pump
Tenth hydraulic fluid port passes through the second hydraulic pressure system on the second disk brake of the 5th pipeline and the second service brake operating mechanism
System connection.
It preferably, further include being connected to the ante-chamber of the brake boost pump in above-mentioned vacuum assisted hydraulic brake system
Vacuum air storage tank, the motor of the vacuum degree for adjusting the vacuum air storage tank is provided in the vacuum air storage tank.
Preferably, in above-mentioned vacuum assisted hydraulic brake system, the brake boost pump passes through with the brake cylinder
Second piston bar is threadedly coupled with the First piston bar.
Preferably, it in above-mentioned vacuum assisted hydraulic brake system, is additionally provided on the brake boost pump and described
8th hydraulic fluid port of one oil can connection.
It preferably, further include the 14th with the third pipeline connection in above-mentioned vacuum assisted hydraulic brake system
Steel pipe is braked, the oil inlet of the 14th braking steel pipe is connect with the 8th hydraulic fluid port, and the described 14th brakes steel pipe, described
5th braking steel pipe is connected with the 6th braking steel pipe by third three-way connection.
Preferably, in above-mentioned vacuum assisted hydraulic brake system, the first pipeline includes: the first braking steel pipe and the second system
Dynamic steel pipe, the first braking steel pipe are connect with the second braking steel pipe by the first straight coupling, the first braking steel
The oil inlet of pipe is connect with second hydraulic fluid port, and the oil outlet of the second braking steel pipe is connect with the 5th hydraulic fluid port；
Second pipeline includes: third braking steel pipe and the 4th braking steel pipe, third braking steel pipe and described the
Four braking steel pipes are connected by the second straight coupling, and the oil inlet of the third braking steel pipe is connect with the 4th hydraulic fluid port, institute
The oil outlet for stating the 4th braking steel pipe is connect with the 6th hydraulic fluid port.
Preferably, in above-mentioned vacuum assisted hydraulic brake system, the third pipeline includes: the 5th braking steel pipe, the
Six braking steel pipes and the 7th braking steel pipe, the 5th braking steel pipe are connected with the 6th braking steel pipe by third straight coupling
It connects, the 6th braking steel pipe is connect with the 7th braking steel pipe by the 4th straight coupling, the 5th braking steel pipe
Oil inlet is connect with the 7th hydraulic fluid port, and the oil outlet of the 7th braking steel pipe is connect with first oil can.
Preferably, in above-mentioned vacuum assisted hydraulic brake system, the 4th pipeline includes: the 8th braking steel pipe, the
Nine braking steel pipes and the tenth braking steel pipe, the 8th braking steel pipe, the 9th braking steel pipe and the tenth braking steel pipe pass through first
The oil inlet of three-way connection connection, the 8th braking steel pipe is connect with the 9th hydraulic fluid port, and the 9th braking steel pipe goes out
Hydraulic fluid port is connected to left side first hydraulic system of the first driving brake actuator, and the tenth braking steel pipe goes out
Hydraulic fluid port is connected to right side first hydraulic system of the first driving brake actuator.
Preferably, in above-mentioned vacuum assisted hydraulic brake system, the 5th pipeline include: the 11st braking steel pipe,
12nd braking steel pipe and the 13rd braking steel pipe, the 11st braking steel pipe, the 12nd braking steel pipe and described the
13 braking steel pipes are connected by the second three-way connection, and the oil inlet and the tenth hydraulic fluid port of the 11st braking steel pipe connect
It connects, the oil outlet of the 12nd braking steel pipe and left side second hydraulic system of the second service brake operating mechanism
Connection, the oil outlet of the 13rd braking steel pipe and right side second hydraulic pressure system of the second service brake operating mechanism
System connection.
It can be seen from the above technical proposal that vacuum assisted hydraulic brake system provided by the invention includes the first driving system
Pneumatic operating mechanism, the second service brake operating mechanism, brake cylinder and brake boost pump, the vacuum assisted hydraulic that this programme provides
Braking system can realize braking by operation the first driving brake actuator, can also pass through operation the second service brake behaviour
Make mechanism and realize braking, additionally it is possible to is real by the first driving brake actuator of operation simultaneously and the second service brake operating mechanism
Now brake.The first brake pedal is trampled, the oil of the first oil can fuel feeding into the first hydraulic fluid port, the first hydraulic fluid port is entered by the second hydraulic fluid port
5th hydraulic fluid port of brake cylinder so that First piston bar pushes the second piston bar movement of brake boost pump, and then pushes piston
Movement, so that the preceding cavity pressure of brake boost pump becomes smaller, the oil in the first oil can enters brake boost pump by third pipeline, so
The first hydraulic system and the second disk brake of the first disk brake are respectively enterd by the 4th pipeline and the 5th pipeline afterwards
The second hydraulic system, realize braking to tourist coach；Trample the second brake pedal, the second oil can is to third hydraulic fluid port fuel feeding, and
The oil of three hydraulic fluid ports enters the 6th hydraulic fluid port of brake cylinder by the 4th hydraulic fluid port, so that First piston bar pushes the of brake boost pump
Two piston rod movements, and then piston motion is pushed, so that the preceding cavity pressure of brake boost pump becomes smaller, having in the first oil can passes through
Third pipeline enters brake boost pump, then respectively enters the first of the first disk brake by the 4th pipeline and the 5th pipeline
Second hydraulic system of hydraulic system and the second disk brake realizes the braking to tourist coach；The first braking is stepped on simultaneously to step on
When plate and the second brake pedal, the oil of the first oil can fuel feeding into the first hydraulic fluid port, the first hydraulic fluid port enters braking by the second hydraulic fluid port
5th hydraulic fluid port of wheel cylinder, the second oil can enter brake cylinder by the 4th hydraulic fluid port to third hydraulic fluid port fuel feeding, the oil of third hydraulic fluid port
6th hydraulic fluid port so that First piston bar pushes the second piston bar movement of brake boost pump, and then pushes piston motion, so that stopping
The preceding cavity pressure of vehicle boost pump becomes smaller, and having in the first oil can enters brake boost pump by third pipeline, then passes through the 4th
Pipeline and the 5th pipeline respectively enter the first disk brake the first hydraulic system and the second disk brake it is second hydraulic
System realizes the braking to tourist coach.The vacuum assisted hydraulic brake system that this programme provides can be realized bi-directional braking, thus
The security risk that two-way tourist coach uses is reduced to a certain extent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of vacuum assisted hydraulic brake system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of brake cylinder provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the first driving brake actuator provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the second service brake operating mechanism provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram after brake cylinder provided in an embodiment of the present invention is combined with the boost pump that brakes；
Fig. 6 is the main view after brake cylinder provided in an embodiment of the present invention is combined with the boost pump that brakes.
1, the first driving brake actuator, the 111, first hydraulic fluid port, the 112, second hydraulic fluid port, the 2, first oil can, the 3, second row
Vehicle brake actuator, 31, third hydraulic fluid port, the 32, the 4th hydraulic fluid port, the 33, second oil can, 4, brake cylinder, 5, brake boost pump,
51, the 7th hydraulic fluid port, the 52, the 8th hydraulic fluid port, the 53, the 9th hydraulic fluid port, the 54, the tenth hydraulic fluid port, 6, vacuum air storage tank, the 7, first braking steel pipe,
8, the second braking steel pipe, the 8, second braking steel pipe, the 9, first straight coupling, 10, third braking steel pipe, the 11, the 4th braking steel pipe,
12, the 5th braking steel pipe, the 13, the 6th braking steel pipe, the 14, the 7th braking steel pipe, the 15, the 8th braking steel pipe, the 16, the 9th braking steel
Pipe, the 17, the tenth braking steel pipe, the 18, first three-way connection, the 19, the 11st braking steel pipe, 20 the 12nd braking steel pipes, the 21, the tenth
Three braking steel pipes, the 22, second three-way connection, the 23, the 14th braking steel pipe, 24, third three-way connection.
Specific embodiment
The invention discloses in a kind of vacuum assisted hydraulic brake system, to realize two driving machines of bidirectional driving tourist coach
The braking of structure, to reduce the security risk that two-way tourist coach uses.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 6 is please referred to, Fig. 1 is the structural representation of vacuum assisted hydraulic brake system provided in an embodiment of the present invention
Figure；Fig. 2 is the structural schematic diagram of brake cylinder provided in an embodiment of the present invention；Fig. 3 is the first row provided in an embodiment of the present invention
The structural schematic diagram of vehicle brake actuator；Fig. 4 is the structure of the second service brake operating mechanism provided in an embodiment of the present invention
Schematic diagram；Fig. 5 is the structural schematic diagram after brake cylinder provided in an embodiment of the present invention is combined with the boost pump that brakes；Fig. 6 is this
Inventive embodiments provide brake cylinder with brake boost pump combine after main view.
The invention discloses a kind of vacuum assisted hydraulic brake systems, including the first driving brake actuator 1, the second row
Vehicle brake actuator 3, brake cylinder 4 and brake boost pump 5.
Specific structure is as follows:
First driving brake actuator 1 is provided with the first brake pedal on first driving brake actuator 1, and first
The first oil inlet 111 and the second oil inlet 112 of connection, the first oil inlet 111 and are provided on service brake operating mechanism 1
Oil liquid in first oil can 2 can be drawn by the connection of one oil can 2 by trampling the first brake pedal by the first oil inlet 111
At second oil inlet 112；
Second service brake operating mechanism 3, is provided with the second brake pedal on the second service brake operating mechanism 3, and second
The third oil inlet 31 and the 4th oil inlet 32 of connection, third oil inlet 31 and second are provided on service brake operating mechanism 3
Oil can 33 be connected to, trample the second brake pedal can by the oil liquid in the second oil can 33 by third oil inlet 31 be drawn onto the 4th into
At hydraulic fluid port 32；
5th hydraulic fluid port of brake cylinder 4, brake cylinder 4 is connected to by the first pipeline with the second hydraulic fluid port 112, brake cylinder 4
The 6th hydraulic fluid port be connected to the 4th hydraulic fluid port 32 by the second pipeline, First piston bar is provided on brake cylinder 4, is either passed through
First pipeline still passes through the second pipeline to 4 fuel feeding of brake pump to 4 fuel feeding of brake pump, can realize the fortune of First piston bar
It is dynamic；
Brake boost pump 5, and brake boost pump 5 includes ante-chamber and the back cavity being communicated with the atmosphere, and ante-chamber and back cavity pass through piston
Separate, such design can mitigate the power for trampling brake pedal, the second piston bar of piston using the pressure difference of ante-chamber and back cavity
It is pushed by First piston bar, the 7th hydraulic fluid port 51 of brake boost pump 5 is connect by third pipeline with the first oil can 2, and brake helps
9th hydraulic fluid port 53 of power pump 5 passes through first on the first disk brake of the 4th pipeline and the first driving brake actuator 1
Hydraulic system connection, makes the first disk brake of the first driving brake actuator 1 work, and realizes front vehicle wheel braking, brake
The tenth hydraulic fluid port 54 on boost pump 5 passes through on the second disk brake of the 5th pipeline and the second service brake operating mechanism 3
The connection of second hydraulic system, makes the second disk brake of the second service brake operating mechanism 3 work, and realizes rear wheel braking.
The first driving brake actuator 1 that this programme provides can realize system to the front and back wheel of tourist coach simultaneously simultaneously
It is dynamic；Second service brake operating mechanism 3 can realize braking to the front and back wheel of tourist coach simultaneously simultaneously；Brake cylinder 4 is used to
The brake force of first driving brake actuator 1 and the second service brake operating mechanism 3 is passed to the piston of brake cylinder 4,
To change the preceding cavity pressure of brake boost pump 5, so that the oil in the first oil can 2 and/or the second oil can 33 enters brake power-assisted
Pump 5.
The process of braking is realized by the first driving brake actuator 1 are as follows:
The first brake pedal is trampled, the oil of the first oil can 2 fuel feeding into the first hydraulic fluid port 111, the first hydraulic fluid port 111 passes through second
112 hydraulic fluid ports enter the 5th hydraulic fluid port of brake cylinder 4, so that First piston bar pushes the second piston bar movement of brake boost pump 5,
And then push piston motion so that brake boost pump 5 preceding cavity pressure become smaller, the oil in the first oil can 2 by third pipeline into
Enter to brake boost pump 5, and the first hydraulic system of the first disk brake is then respectively enterd by the 4th pipeline and the 5th pipeline
With the second hydraulic system of the second disk brake, the braking to tourist coach is realized；
The process of braking is realized by the second service brake operating mechanism 3 are as follows:
The second brake pedal is trampled, the second oil can passes through the 4th hydraulic fluid port to 31 fuel feeding of third hydraulic fluid port, the oil of third hydraulic fluid port 31
32 enter the 6th hydraulic fluid port of brake cylinder 4, so that First piston bar pushes the second piston bar movement of brake boost pump 5, in turn
Piston motion is pushed, so that the preceding cavity pressure of brake boost pump 5 becomes smaller, having in the first oil can 2 enters brake by third pipeline
Then vehicle boost pump 5 respectively enters the first hydraulic system and of the first disk brake by the 4th pipeline and the 5th pipeline
Second hydraulic system of two disk brakes realizes the braking to tourist coach；
The process of braking is realized by the first driving brake actuator 1 and the second service brake operating mechanism 3 are as follows:
When stepping on the first brake pedal and the second brake pedal simultaneously, the first oil can 2 fuel feeding into the first hydraulic fluid port 111, the
The oil of one hydraulic fluid port 111 enters the 5th hydraulic fluid port of brake cylinder 4 by the second hydraulic fluid port 112, the second oil can to 31 fuel feeding of third hydraulic fluid port,
The oil of third hydraulic fluid port 31 enters the 6th oil inlet of brake cylinder 4 by the 4th hydraulic fluid port 32, so that First piston bar pushes brake
The second piston bar of boost pump moves, and then pushes piston motion, so that the preceding cavity pressure of brake boost pump becomes smaller, the first oil can
Interior having enters brake boost pump by third pipeline, then respectively enters the first disc type system by the 4th pipeline and the 5th pipeline
First hydraulic system of dynamic device and the second hydraulic system of the second disk brake, realize the braking to tourist coach.
The device that this programme provides can be realized by trampling the first brake pedal and/or the second brake pedal to braking
The manipulation of wheel cylinder 4 to realize the change to brake power-assisted pump pressure, and then is able to achieve the braking to two-way tourist coach, that is, steps on
Stepping on the first brake pedal can be realized the braking of car body, tramples the second brake pedal also and can be realized the braking of car body, steps on simultaneously
Step on the first brake pedal and the second brake pedal also can be realized the braking of car body, compared with the existing technology in can only from side reality
No matter the mode of existing vehicle body braking in the front side of car body or rear side can realize the braking of car body, so that improving car body makes
Safety coefficient reduces security risk.
During braking, the pressure of the 9th hydraulic fluid port 53 and the tenth hydraulic fluid port 54 is brake pump 4 and the boost pump 5 that brakes
Pressure superposition, to further improve the reliability of braking.
The brake cylinder 4 that this programme uses can be two stage braking wheel cylinder, or three-stage brake wheel cylinder or level Four
Brake cylinder is configured with specific reference to the needs used.
In order to further optimize the above technical scheme, in a specific embodiment of the invention, further include and brake power-assisted
The vacuum air storage tank 6 of 5 ante-chamber connection is pumped, the electricity of the vacuum degree for adjusting vacuum air storage tank 6 is provided in vacuum air storage tank 6
Machine needs to carry out upper limit value and lower limit value to the vacuum degree of vacuum air storage tank 6 to guarantee the normal work of vacuum air storage tank 6
Restriction, when the vacuum degree in vacuum air storage tank 6 lower than setting lower limit value when, motor starts to take out vacuum air storage tank 6
Gas operation, makes the vacuum degree in vacuum air storage tank 6 reach requirement, when the pressure in vacuum air storage tank 6 is more than the upper limit value of setting
When, then need motor to stop working.
In order to facilitate the installation and removal between brake boost pump 5 and brake cylinder 4, brake boost pump 5 and brake cylinder 4
It is threadedly coupled by second piston bar with First piston bar or connect brake boost pump 5 by pin with brake cylinder 4.
In order to guarantee that the oil in the first oil can 2 smoothly feeds brake boost pump 5, it is additionally provided with and the on the boost pump 5 that brakes
8th hydraulic fluid port 52 of one oil can 2 connection passes through the 7th hydraulic fluid port 51 and the 8th hydraulic fluid port 52 while the fuel feeding into brake boost pump 5.
The structure of pipeline is described in the following examples:
First pipeline includes: the first braking steel pipe 7 and the second braking steel pipe 8, and the first braking steel pipe 7 and second brakes steel pipe
8 are connected by the first straight coupling 9, and the oil inlet of the first braking steel pipe 7 is connect with the second hydraulic fluid port 112, the second braking steel pipe 8
Oil outlet is connect with the 5th hydraulic fluid port, and the oil inlet of the oil outlet of the first braking steel pipe 7 and the second braking steel pipe 8 is straight-through by first
Connector 9 is attached.It realizes that the first braking steel pipe 7 and the second braking steel pipe 8 connect by the first bypass structure 9, ensure that the
The length and use intensity of one pipeline can be needed according to the length of pipeline by straight-through in a specific embodiment of the present invention
Structure is combined braking steel pipe.
Second pipeline includes: third braking steel pipe 10 and the 4th braking steel pipe 11, and third brakes steel pipe 10 and the 4th braking
Steel pipe 11 is connected by the second straight coupling 12, and the oil inlet of third braking steel pipe 10 is connect with the 4th hydraulic fluid port, the 4th braking steel
The oil outlet of pipe 11 is connect with the 6th hydraulic fluid port, and the oil outlet of third braking steel pipe 10 and the oil inlet of the 4th braking steel pipe 11 pass through
The connection of second straight coupling 12, ensure that the length and use intensity of the second pipeline.Straight coupling is for connection to the normal of pipeline
Appliance can be realized the connection between pipeline, while guarantee the smooth circulation of liquid in pipe.In a specific embodiment of the present invention
The appropriate quantity for increasing straight coupling and braking steel pipe can be needed according to the length of pipeline, be not limited to above-mentioned quantity.
Third pipeline includes: that the 5th braking steel pipe the 12, the 6th brakes steel pipe 13 and the 7th braking steel pipe 14, the 5th braking steel
Pipe 12 is connect with the 6th braking steel pipe 13 by third straight coupling, and the 6th braking steel pipe 13 brakes steel pipe 14 with the 7th and passes through the
The oil inlet of the connection of four straight couplings, the 5th braking steel pipe 12 is connect with the 7th hydraulic fluid port 51, the oil outlet of the 7th braking steel pipe 14
It is connect with the first oil can 2, three braking steel pipe connections need two straight couplings accordingly.
The 14th braking steel pipe 23 is increased, in a specific embodiment of the invention in order to need to make at this time to the 14th
Dynamic steel pipe 23 and third pipeline carry out confluence operation, i.e., carry out confluence behaviour to the 14th braking steel pipe 23 and the 5th braking steel pipe 12
Make, the oil inlet of the 14th braking steel pipe 23 is connect with the 8th hydraulic fluid port 52, the oil outlet and the three or three of the 14th braking steel pipe 23
Pass joint 24 connects, and the 5th braking steel pipe 12 and the 6th braking steel pipe 13 are connect with other two mouth of third three-way connection 24.
Preferably, three-way connection used in this programme is right-angle tee connector.
4th pipeline needs to carry out triage operator, and the oil in the 9th hydraulic fluid port 53 is flowed to the first driving brake actuator
The first hydraulic system of right side of 1 the first hydraulic system of left side and the first driving brake actuator 1, the 4th pipeline includes: the
Eight braking steel pipes the 15, the 9th brake steel pipes 16 and the tenth braking steel pipe 17, the 8th braking steel pipe 15, the 9th braking steel pipe 16 and the
Ten braking steel pipes 17 are connected by the first three-way connection 18, and the oil inlet of the 8th braking steel pipe 15 is connect with the 9th hydraulic fluid port 53, the
The oil outlet of nine braking steel pipes 16 is connected to the first hydraulic system of left side of the first driving brake actuator 1, the tenth braking steel
The oil outlet of pipe 17 is connected to the first hydraulic system of right side of the first driving brake actuator 1, and the 8th braking steel pipe 15 goes out
Hydraulic fluid port is connect with a mouth of the first three-way connection 15, the 9th braking steel pipe 16 and the tenth braking steel pipe 17 respectively with the first threeway
Other two mouth of connector 15 connects, and prolongs if necessary to the length to the 9th braking steel pipe 16 and the tenth braking steel pipe 17
It is long, it can be realized using straight coupling.
5th pipeline needs to carry out triage operator, and the oil in the tenth hydraulic fluid port 54 is flowed to the second service brake operating mechanism
3 the second hydraulic system of left side and the second hydraulic system of right side of the second service brake operating mechanism 3, the 5th pipeline include:
11 braking steel pipes the 19, the 12nd brake steel pipe 20 and the 13rd and brake steel pipe 21, and the 11st braking steel pipe the 19, the 12nd is braked
Steel pipe 20 and the 13rd is braked steel pipe 21 and is connected by the second three-way connection 22, the oil inlet and the tenth of the 11st braking steel pipe 19
Hydraulic fluid port 54 connects, the oil outlet of the 12nd braking steel pipe 20 and the second hydraulic system of left side of the second service brake operating mechanism 3
The oil outlet 21 of connection, the 13rd braking steel pipe 21 is connected to the second hydraulic system of right side of the second service brake operating mechanism 3,
The oil outlet of 11st braking steel pipe 19 is connect with a mouth of the second three-way connection 22, the 12nd braking steel pipe 20 and the 13rd
Braking steel pipe 21 is connect with second three-way connection 22 other two mouth respectively.
The present invention provides vacuum assisted hydraulic brake system, is applicable not only to the tourist coach of two way, is equally applicable to
Learner-driven vehicle.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of vacuum assisted hydraulic brake system characterized by comprising
First drives a vehicle brake actuator (1), is provided with the first brake pedal in first driving brake actuator (1),
It is provided with the first hydraulic fluid port (111) and the second hydraulic fluid port (112) of connection in first driving brake actuator (1), described the
One hydraulic fluid port (111) is connected to the first oil can (2)；
Second service brake operating mechanism (3) is provided with the second brake pedal on the second service brake operating mechanism (3),
The third hydraulic fluid port (31) and the 4th hydraulic fluid port (32) of connection, the third are provided on the second service brake operating mechanism (3)
Hydraulic fluid port (31) is connected to the second oil can (33)；
5th hydraulic fluid port of brake cylinder (4), the brake cylinder (4) is connected to by the first pipeline with second hydraulic fluid port (112),
6th hydraulic fluid port of the brake cylinder (4) is connected to by the second pipeline with the 4th hydraulic fluid port (32), on the brake cylinder (4)
It is provided with First piston bar；
It brakes boost pump (5), brake boost pump (5) includes ante-chamber and the back cavity that is communicated with the atmosphere, the ante-chamber and described
Back cavity is separated by piston, and the second piston bar of the piston is pushed by the First piston bar, the brake boost pump (5)
The 7th hydraulic fluid port (51) connect with first oil can (2) by third pipeline, the 9th hydraulic fluid port for braking boost pump (5)
(53) pass through the first hydraulic system on the 4th pipeline and the first disk brake of first driving brake actuator (1)
Connection, the tenth hydraulic fluid port (54) to brake on boost pump (5) pass through the 5th pipeline and the second service brake operating mechanism
(3) the second hydraulic system connection on the second disk brake.
2. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that further include and the brake power-assisted
The vacuum air storage tank (6) of the ante-chamber connection of (5) is pumped, is provided on the vacuum air storage tank (6) for adjusting the vacuum gas storage
The motor of the vacuum degree of tank (6).
3. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that the brake boost pump (5) with
The brake cylinder (4) is threadedly coupled by second piston bar with the First piston bar.
4. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that on the brake boost pump (5)
It is additionally provided with the 8th hydraulic fluid port (52) being connected to first oil can (2).
5. vacuum assisted hydraulic brake system according to claim 4, which is characterized in that further include and the third pipeline
14th braking steel pipe (23) of connection, the third pipeline include that the 5th braking steel pipe (12) and the 6th brake steel pipe (13),
The oil inlet of 14th braking steel pipe (23) is connect with the 8th hydraulic fluid port (52), the 14th braking steel pipe (23),
5th braking steel pipe (12) and the 6th braking steel pipe (13) are connected by third three-way connection (24).
6. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that the first pipeline includes: the first system
Dynamic steel pipe (7) and the second braking steel pipe (8), first braking steel pipe (7) and second braking steel pipe (8) are straight by first
The oil inlet of pass joint (9) connection, first braking steel pipe (7) is connect with second hydraulic fluid port, the second braking steel pipe
(8) oil outlet is connect with the 5th hydraulic fluid port；
Second pipeline includes: third braking steel pipe (10) and the 4th braking steel pipe (11), and the third brakes steel pipe (10)
Connect with the 4th braking steel pipe (11) by the second straight coupling, the third brake the oil inlet of steel pipe (10) with it is described
The oil outlet of the connection of 4th hydraulic fluid port, the 4th braking steel pipe (11) is connect with the 6th hydraulic fluid port.
7. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that the third pipeline includes:
Five braking steel pipe (12), the 6th braking steel pipe (13) and the 7th braking steel pipe (14), it is described 5th brake steel pipe (12) with it is described
6th braking steel pipe (13) is connected by third straight coupling, the 6th braking steel pipe (13) and the 7th braking steel pipe
(14) it is connected by the 4th straight coupling, the oil inlet of the 5th braking steel pipe (12) is connect with the 7th hydraulic fluid port, described
The oil outlet of 7th braking steel pipe (14) is connect with first oil can (2).
8. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that the 4th pipeline includes:
Eight brakings steel pipe (15), the 9th braking steel pipe (16) and the tenth braking steel pipe (17), the 8th braking steel pipe (15), the 9th system
Dynamic steel pipe (16) and the tenth braking steel pipe (17) by the first three-way connection (18) connection, the described 8th brake steel pipe (15) into
Hydraulic fluid port is connect with the 9th hydraulic fluid port (53), the oil outlet of the 9th braking steel pipe (16) and the first driving brake operating
The the first hydraulic system connection of the left side of mechanism (1), the oil outlet of the tenth braking steel pipe (17) and first driving
The the first hydraulic system connection of the right side of brake actuator (1).
9. vacuum assisted hydraulic brake system according to claim 1, which is characterized in that the 5th pipeline includes:
11 brakings steel pipe (19), the 12nd braking steel pipe (20) and the 13rd braking steel pipe (21), the 11st braking steel pipe
(19), the 12nd braking steel pipe (20) and the 13rd braking steel pipe (21) are connected by the second three-way connection (22),
The oil inlet of 11st braking steel pipe (19) is connect with the tenth hydraulic fluid port (54), the 12nd braking steel pipe (20)
Oil outlet is connected to left side second hydraulic system of the second service brake operating mechanism (3), the 13rd braking
The oil outlet of steel pipe (21) is connected to right side second hydraulic system of the second service brake operating mechanism (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697761.1A CN105235670B (en) | 2015-10-23 | 2015-10-23 | A kind of vacuum assisted hydraulic brake system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697761.1A CN105235670B (en) | 2015-10-23 | 2015-10-23 | A kind of vacuum assisted hydraulic brake system |
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| Publication Number | Publication Date |
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| CN105235670A CN105235670A (en) | 2016-01-13 |
| CN105235670B true CN105235670B (en) | 2018-12-18 |
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| CN201510697761.1A Active CN105235670B (en) | 2015-10-23 | 2015-10-23 | A kind of vacuum assisted hydraulic brake system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486895A (en) * | 2002-07-19 | 2004-04-07 | Ӣ�����������ͳ��ƶ�ϵͳ����˾ | Hydraulic impact type booster for bidirectional braking Long-distance and direct pedal operation |
| CN101177139A (en) * | 2007-12-10 | 2008-05-14 | 常州科研试制中心有限公司 | Bidirectional steering vehicle braking transmission system |
| CN202200968U (en) * | 2011-08-18 | 2012-04-25 | 三江瓦力特特种车辆有限公司 | Braking system of bidirectional running vehicle |
| CN205417595U (en) * | 2015-10-23 | 2016-08-03 | 衡阳合力工业车辆有限公司 | Vacuum servo hydraulic braking system |
-
2015
- 2015-10-23 CN CN201510697761.1A patent/CN105235670B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486895A (en) * | 2002-07-19 | 2004-04-07 | Ӣ�����������ͳ��ƶ�ϵͳ����˾ | Hydraulic impact type booster for bidirectional braking Long-distance and direct pedal operation |
| CN101177139A (en) * | 2007-12-10 | 2008-05-14 | 常州科研试制中心有限公司 | Bidirectional steering vehicle braking transmission system |
| CN202200968U (en) * | 2011-08-18 | 2012-04-25 | 三江瓦力特特种车辆有限公司 | Braking system of bidirectional running vehicle |
| CN205417595U (en) * | 2015-10-23 | 2016-08-03 | 衡阳合力工业车辆有限公司 | Vacuum servo hydraulic braking system |
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| CN105235670A (en) | 2016-01-13 |
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