CN107327568A - Leather cup with crack monitoring function for vehicle brake cylinder - Google Patents
Leather cup with crack monitoring function for vehicle brake cylinder Download PDFInfo
- Publication number
- CN107327568A CN107327568A CN201710677959.2A CN201710677959A CN107327568A CN 107327568 A CN107327568 A CN 107327568A CN 201710677959 A CN201710677959 A CN 201710677959A CN 107327568 A CN107327568 A CN 107327568A
- Authority
- CN
- China
- Prior art keywords
- cavity
- elliptic
- leather cup
- indicator
- cylinder
- 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.)
- Granted
Links
- 239000010985 leather Substances 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000002696 acid base indicator Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention particularly relates to a leather cup for a vehicle brake cylinder, which has a good monitoring effect and can remind a driver in time and has a crack monitoring function. The two straight sections of the leather cup are respectively clung to the side wall of the cylinder body inner cavity of the brake cylinder and the outer side wall of the piston rod, and the two straight sections are connected through an arc section; a sealed first elliptical cavity is arranged in the straight section, a second elliptical cavity is arranged in the circular arc section, and different types of indicators are filled in the first elliptical cavity and the second elliptical cavity respectively; first oval chamber or the oval chamber of second lead to its inside indicator to reveal the back because of the crackle that appears, and indicator detection sensor detects corresponding indicator, and ECU can send the region that the crackle appears in the leather cup according to the kind of indicator, and the leather cup life-span is initiatively monitored, and better help driver's prevention accident takes place.
Description
Technical field
The present invention relates to brake system of car technical field, more particularly to a kind of vehicle braking with crack monitoring function
Cylinder leather cup.
Background technology
As shown in Figure 1, the operation principle of master cylinder is in brake system of car：During braking, driver steps on foot-operated
Plate (or plus power-assisted) forces piston (004) to move forward by push rod, drives the first primary cup (001) to cross spout hole (003), this
When master cylinder (006) and first piston (004) between fluid pressure line close；Pedal force by be retained in first piston (004) with
Brake fluid between cylinder body is down transmitted, and promotes second piston (008) to move forward, while set in second piston (008)
Second primary cup (005) blocks the spout hole (003) on auxiliary cylinder (007), then auxiliary cylinder (007) and second piston
(008) fluid pressure line between is also closed, and forms hydraulic coupling；The effect of the first primary cup (001) it can be seen from above procedure
It is to ensure cylinder body and first piston (004) or cylinder body and second piston when first piston (004) travels forward in cylinder body
(008) sealing between；And after driver loosens the brake, first piston (004) or second piston (008) are transported backward
During dynamic return, in order to allow fluid quick backflow, a part of fluid can produce seam by the first primary cup (001) between cylinder body
Gap, or the second primary cup (005) produce gap between cylinder body and flowed back to, and this requires the first primary cup (001) or second
Primary cup (005) has sealing in one direction, therefore the structure of leather cup is generally configured to section for taper or horizontal U-shaped.
If there is crackle or poorly sealed when needing sealing in the first primary cup (001) or the second primary cup (005)
Situation, then the brake pressure in fluid pressure line can substantially reduce, cause brake pressure not enough, be embodied in brake pedal
When have certain drag strut, but pedal keeps not living, while vehicle does not slow down.
From described above, leather cup is related to braking ability important spare part in master cylinder, but is due to need
Axial reciprocating frictional force is born, and needs to keep sealing property in motion process, therefore the material of leather cup is usually by rubber
Glue material is made, after vehicle long-play, and because being corroded by external force effect and fluid, leather cup is inevitably
There is aging, crackle, be even broken, leather cup failure post-braking system can also fail, and cause serious traffic accident.
And should be left due to ensureing sealing when the requirement to leather cup is one-way movement, during counter motion necessarily again between
Gap, therefore whether sealing is difficult to judge or detected can guarantee that during one-way movement to leather cup；In the prior art to leather cup
Maintenance measure be usually to be regularly replaced according to time or distance travelled, but be due to that part car owner does not enter to vehicle as requested
Row maintenance, can not also observe directly the aging conditions of leather cup, this has resulted in very serious potential safety hazard during normally travel.
Be necessary that design is a kind of for this so can actively be sent out with there is the structure of crackle in actively monitoring leather cup before leather cup failure
Go out prompting, remind driver to need to be changed.
The content of the invention
In view of the above-mentioned problems, it is an object of the present invention to provide a kind of monitoring effect it is good, can remind in time driver have split
The vehicle rubber cup for brake cylinder of line monitoring function.
For achieving the above object, the technical solution adopted in the present invention is：A kind of car with crack monitoring function
Rubber cup for brake cylinder, the leather cup is arranged in master cylinder, and master cylinder is connected with oil can, brake piping respectively；It is described
Leather cup section approximate U shape, inner chamber of cylinder block side wall, the piston rod lateral wall of two flat segments of its U-shaped respectively with checking cylinder
It is close to, is connected between two flat segments by arc section；
The first closed elliptic cavity is set in the flat segments, and the long axis direction of the first elliptic cavity is parallel with flat segments；Institute
State and the second elliptic cavity is set in arc section, the long axis direction of the second elliptic cavity is vertical with the long axis direction of the first elliptic cavity；It is described
Different types of indicator is respectively filled with first elliptic cavity, the second elliptic cavity；Indicator is set to detect sensing in the oil can
Device, sensor is communicated to connect with ECU.
It is preferred that, along the axis direction of leather cup, multiple first elliptic cavities are set, the major axis of multiple first elliptic cavities is coaxial；
Along the axis direction of leather cup, multiple second elliptic cavities are set, the major axis of multiple second elliptic cavities is parallel to each other.
It is preferred that, Long Circle special-shaped cavity is set, and Long Circle special-shaped cavity is vertical with the first elliptic cavity, abnormity in the arc section
The side of close arc section arc-shaped edges is circular arc in chamber, and the side away from arc section arc-shaped edges is straight flange, two of special-shaped cavity
Connected between side by oval segmental arc.
It is preferred that, the side contacted in the flat segments with inner chamber of cylinder block side wall or piston rod lateral wall is wave-like,
3rd elliptic cavity is set in one or more of wave-like is raised, the long axis direction of the 3rd elliptic cavity and the first elliptic cavity
Long axis direction is vertically arranged；The indicator and the first elliptic cavity, the second elliptic cavity being full of in 3rd elliptic cavity are different.
The invention has the advantages that：First elliptic cavity or the second elliptic cavity cause it internal because of the crackle of appearance
After indicator leakage, indicator detection sensor detects corresponding indicator, and ECU can send skin according to the species of indicator
There is the region of crackle in bowl, in the actively monitoring leather cup life-span, preferably help driver to prevent accident generation.
Brief description of the drawings
Fig. 1 is brake master cylinder structure schematic diagram；
Fig. 2 is leather cup cross-sectional view；
Fig. 3 is a kind of leather cup cross-sectional view of preferred scheme；
Fig. 4 is the leather cup cross-sectional view of another preferred scheme；
Fig. 5 is the leather cup cross-sectional view of another preferred scheme.
Embodiment
A kind of vehicle rubber cup for brake cylinder with crack monitoring function as Figure 2-Figure 5, the leather cup is arranged on
In master cylinder, master cylinder is connected with oil can, brake piping respectively；The section approximate U shape of the leather cup, two of its U-shaped
Flat segments 2 and the cylinder body axis of checking cylinder be arranged in parallel, two flat segments 2 respectively with inner chamber of cylinder block side wall, piston rod lateral wall
It is close to, is connected between two flat segments 2 by arc section 3, the inner side edge of arc section 3 is arc-shaped edges, and outer side edges can be according to need
Arc-shaped edges or straight flange are designed to, the outer side edges of the arc section 3 shown in Fig. 2 are straight flange；
The first closed elliptic cavity 4 is set in the flat segments 2, and the long axis direction and flat segments 2 of the first elliptic cavity 4 are flat
OK；The long axis direction of second elliptic cavity 5, the long axis direction of the second elliptic cavity 5 and the first elliptic cavity 4 is set in the arc section 3
Vertically；Different types of indicator is respectively filled with first elliptic cavity 4, the second elliptic cavity 5, the oil being connected with checking cylinder
Middle setting indicator detection sensor, sensor is communicated to connect with ECU.Described indicator can pair with checking cylinder inside brake liquid
Acid-base indicator or metal indicator without influence, described indicator detection sensor can be selected according to the species of indicator
Select, sensor can detect and distinguish the first elliptic cavity 4, the different indicator in the second elliptic cavity 5.First is ellipse shown in Fig. 2
Cylindrical cavity 4, the size of the second elliptic cavity 5 are that, for more preferable display technique scheme, actual size is less than shown in Fig. 2；
Leather cup is during normal use, and its failure mode is local shedding or fracture caused by crackle mostly, therefore right
The crackle of leather cup surface or inside, which is monitored, just can be predicted its service life, and the crackle on ordinary circumstance down cup surface is appeared in
The side that flat segments 2 are contacted with inner chamber of cylinder block side wall or piston rod lateral wall, and the inner side of arc section 3 is appeared in underbead crack more
Arc-shaped edges surface, therefore set the first elliptic cavity 4 in the flat segments 2, sets the second elliptic cavity 5 in arc section 3, when first ellipse
The elliptic cavity 5 of cylindrical cavity 4 or second causes after its internal indicator leakage because of the crackle occurred in leather cup, and indicator is with checking cylinder
Hydraulic oil enter oil can, indicator detection sensor detects corresponding indicator, and sends a signal to ECU, and ECU is by skin
Bowl fault message is sent to driver, realizes the actively monitoring function of leather cup crackle, and ECU can be according to the species of indicator
The region for occurring crackle in leather cup is analyzed, preferably helps driver to prevent accident generation.
In order to preferably monitor the crackle in leather cup, as shown in Figure 3, along the axis direction of leather cup, set multiple first
Elliptic cavity 4, the major axis of multiple first elliptic cavities 4 is coaxial；Along the axis direction of leather cup, multiple second elliptic cavities 5, Duo Ge are set
The major axis of two elliptic cavities 5 is parallel to each other.Concentration of indicator sensor can also so be increased in oil can, according to concentration of indicator
Sensor detects that the leakage rate of different indicator during crackle occurs in leather cup, so as to obtain the depth information of crackle in leather cup, example
As sensor is detected containing the indicator in the first elliptic cavity 4 in oil can, but the concentration of the indicator is relatively low, then illustrates straight
Crack number in section 2 is less, and now leather cup may continue to work certain time, and such as sensor, which is detected, contains second in oil can
Indicator in elliptic cavity 5, and the concentration of the indicator is higher, then ECU sends emergency alarm to driver；So ECU
The alarm signal of different stage can be sent to driver according to the concentration of indicator, makes monitoring more accurate.
As shown in Figure 4, more preferable embodiment is：Long Circle special-shaped cavity 8, Long Circle are set in the arc section 3
Special-shaped cavity 8 is vertical with the first elliptic cavity 4, and the side in special-shaped cavity 8 close to the inner arc side of arc section 3 is circular arc, away from circle
The side on the inner arc side of segmental arc 3 is to be connected between straight flange, two sides of special-shaped cavity 8 by oval segmental arc.When leather cup is along cylinder
When body axial movement is deformed by frictional force, the inner arc side deflection of arc section 3 is larger, and outer arc side deflection
Smaller, two sides of special-shaped cavity 8 preferably adapt to the deformation of leather cup, improve the service life of leather cup.
As shown in Figure 5, in order to ensure that leather cup has sealing, while reducing frictional force as far as possible, service life is improved,
Preferably embodiment is：The side contacted in the flat segments 2 with inner chamber of cylinder block side wall or piston rod lateral wall is waveform
Shape；But the side of flat segments 2 is set to after wave-like, the projection 9 of its wave-like is easier to crack, therefore wave-like
One or more of the 3rd elliptic cavity 10, the length of the long axis direction of the 3rd elliptic cavity 10 and the first elliptic cavity 4 are set in projection 9
Direction of principal axis is vertically arranged；The indicator being full of in 3rd elliptic cavity 10 differs with the first elliptic cavity 4, the second elliptic cavity 5
Sample, so can both improve the service life of leather cup, and more accurately crack position can also be monitored.
Claims (4)
1. a kind of vehicle rubber cup for brake cylinder with crack monitoring function, leather cup is arranged on master cylinder, master cylinder point
It is not connected with oil can, brake piping；It is characterized in that：The section approximate U shape of described leather cup, two flat segments (2) of its U-shaped
It is close to respectively with inner chamber of cylinder block side wall, the piston rod lateral wall of checking cylinder, between two flat segments (2) by arc section (3) even
Connect；
It is characterized in that：Closed the first elliptic cavity (4), the long axis direction of the first elliptic cavity (4) are set in the flat segments (2)
It is parallel with flat segments (2)；Second elliptic cavity (5) is set in the arc section (3), the long axis direction of the second elliptic cavity (5) and the
The long axis direction of one elliptic cavity (4) is vertical；It is respectively filled with first elliptic cavity (4), the second elliptic cavity (5) different types of
Indicator；Indicator detection sensor is set in the oil can, and sensor is communicated to connect with ECU.
2. a kind of vehicle rubber cup for brake cylinder with crack monitoring function according to claim 1, it is characterised in that：Edge
The axis direction of leather cup, sets multiple first elliptic cavities (4), and the major axis of multiple first elliptic cavities (4) is coaxial；Along the axis of leather cup
Direction, sets multiple second elliptic cavities (5), and the major axis of multiple second elliptic cavities (5) is parallel to each other；In the oil being connected with cylinder body
Concentration of indicator sensor is set.
3. a kind of vehicle rubber cup for brake cylinder with crack monitoring function according to claim 1 or claim 2, its
It is characterised by：Long Circle special-shaped cavity (8) is set in the arc section (3), and Long Circle special-shaped cavity (8) hangs down with the first elliptic cavity (4)
Directly, it is circular arc close to the side of arc section (3) arc-shaped edges in special-shaped cavity (8), the side away from arc section (3) arc-shaped edges is straight
Connected between side, two sides of special-shaped cavity (8) by oval segmental arc.
4. a kind of vehicle rubber cup for brake cylinder with crack monitoring function according to claim 1, it is characterised in that：Institute
The side state in flat segments (2), contacted with inner chamber of cylinder block side wall or piston rod lateral wall is one in wave-like, wave-like
3rd elliptic cavity (10) is set in individual or multiple raised (9), the long axis direction of the 3rd elliptic cavity (10) and the first elliptic cavity (4)
Long axis direction is vertically arranged；The indicator and the first elliptic cavity (4), the second elliptic cavity being full of in 3rd elliptic cavity (10)
(5) it is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677959.2A CN107327568B (en) | 2017-08-09 | 2017-08-09 | Leather cup with crack monitoring function for vehicle brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677959.2A CN107327568B (en) | 2017-08-09 | 2017-08-09 | Leather cup with crack monitoring function for vehicle brake cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327568A true CN107327568A (en) | 2017-11-07 |
| CN107327568B CN107327568B (en) | 2024-06-11 |
Family
ID=60199178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710677959.2A Active CN107327568B (en) | 2017-08-09 | 2017-08-09 | Leather cup with crack monitoring function for vehicle brake cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327568B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628707U (en) * | 1992-08-31 | 1994-04-15 | 三菱重工業株式会社 | Repeated stress corrosion cracking monitor |
| JP2005320947A (en) * | 2004-05-11 | 2005-11-17 | Toyota Motor Corp | Sliding member and method of manufacturing sliding member |
| CN201003604Y (en) * | 2006-12-22 | 2008-01-09 | 吉林汽车制动器厂 | Main packing cup of braking master cylinder |
| CN202520953U (en) * | 2012-03-14 | 2012-11-07 | 浙江亚太机电股份有限公司 | Wheel cylinder double-lip packing cup of hydraulic brake |
| DE102013217254A1 (en) * | 2012-09-27 | 2014-03-27 | Continental Teves Ag & Co. Ohg | Brake pressure control apparatus for two-wheeled motor vehicle, has control piston that is arranged in hydraulic path such that hydraulic connection between brake cylinder and wheel brake unit is released in basic position of piston |
| CN105540024A (en) * | 2015-10-29 | 2016-05-04 | 佛山市辉鸿塑胶模具有限公司 | Screw type smearing bottle |
| US20160202161A1 (en) * | 2015-01-14 | 2016-07-14 | Toshiba Tec Kabushiki Kaisha | Crack sensor and crack monitoring device |
-
2017
- 2017-08-09 CN CN201710677959.2A patent/CN107327568B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628707U (en) * | 1992-08-31 | 1994-04-15 | 三菱重工業株式会社 | Repeated stress corrosion cracking monitor |
| JP2005320947A (en) * | 2004-05-11 | 2005-11-17 | Toyota Motor Corp | Sliding member and method of manufacturing sliding member |
| CN201003604Y (en) * | 2006-12-22 | 2008-01-09 | 吉林汽车制动器厂 | Main packing cup of braking master cylinder |
| CN202520953U (en) * | 2012-03-14 | 2012-11-07 | 浙江亚太机电股份有限公司 | Wheel cylinder double-lip packing cup of hydraulic brake |
| DE102013217254A1 (en) * | 2012-09-27 | 2014-03-27 | Continental Teves Ag & Co. Ohg | Brake pressure control apparatus for two-wheeled motor vehicle, has control piston that is arranged in hydraulic path such that hydraulic connection between brake cylinder and wheel brake unit is released in basic position of piston |
| US20160202161A1 (en) * | 2015-01-14 | 2016-07-14 | Toshiba Tec Kabushiki Kaisha | Crack sensor and crack monitoring device |
| CN105540024A (en) * | 2015-10-29 | 2016-05-04 | 佛山市辉鸿塑胶模具有限公司 | Screw type smearing bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107327568B (en) | 2024-06-11 |
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Effective date of registration: 20240513 Address after: Building 5, No. 699-27 Xuanwu Avenue, Xuanwu District, Nanjing City, Jiangsu Province, 210000 Applicant after: Nanjing IOT and IC Design Industry Innovation Center Co.,Ltd. Country or region after: China Address before: Xihua University, 999 Jinzhou Road, Jinniu District, Chengdu, Sichuan 610039 Applicant before: XIHUA University Country or region before: China |
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