CN104236923B - Multifunctional durability test device for testing durability of automobile brake parts - Google Patents
Multifunctional durability test device for testing durability of automobile brake parts Download PDFInfo
- Publication number
- CN104236923B CN104236923B CN201410512258.XA CN201410512258A CN104236923B CN 104236923 B CN104236923 B CN 104236923B CN 201410512258 A CN201410512258 A CN 201410512258A CN 104236923 B CN104236923 B CN 104236923B
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- drive mechanism
- valve
- cylinder
- durability
- chamber
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Abstract
The invention belongs to the field of testing of static or dynamic balance of machines or structural parts and particularly relates to a durability test system for testing durability of automobile brake parts. The system comprises a frame, a high-and-low temperature box, a drive device, a load device and a measurement controller; the drive device comprises a pneumatic drive mechanism, a hydraulic drive mechanism and a mechanical drive mechanism; the pneumatic drive mechanism comprises a main pressure regulator, a backup pressure regulator, two gas storage tanks, a locking cylinder, a proportional value, an electromagnetic valve and a speed regulating valve; the hydraulic drive mechanism comprises an air booster, a throttle valve, an electromagnetic reversing valve and a manual reversing valve which are connected in order; the manual reversing valve is connected with the pipeline between the gas storage tanks and the speed regulating valve; the mechanical drive mechanism comprises a rocking angle device, an inner pull plate, a support sleeve, an outer pull plate and a mounting back plate; the inner pull plate, the support sleeve, the outer pull plate and the mounting back plate are connected in order; the measurement controller comprises a control unit, a network switch and a PC (perusal computer) which are electrically connected. The system is applicable to testing of various types of automobile brake parts.
Description
Technical field
The invention belongs to the quiet or dynamically balanced field tests of machine or structure member, be specifically related to a kind of automobile brake portion
The multi-functional device for detecting durability of part.
Background technology
Vacuum booster, master cylinder, hydraulic load sensing proportioning valve, wheel cylinder and brake caliper assy belong to brakes
Core component, their fatigue failure will cause serious vehicle accident, for the inspection in brakes Parts life-span
Surveying, relevant unit has formulated a series of national standard and industry standard.These standards of each unit reference, according to practical situation
The test system that performance is superior that detects is provided for Automobile Parts Industry, but the present situation faced is to detect device relatively simply, many
For similar, unitary system dynamic component are detected, so that some enterprises have to put into multiple stage detection equipment, cause manpower, wealth
The burden of power.
The patent that prior art has been announced, such as the patent automobile vacuum booster that Authorization Notice No. is CN202547951U
Endurance test bed, although related to the performance test of brake component, but be both for the test system of vacuum booster,
In many patent information, there is not yet the detection system that polytype brake component can be done simultaneously high/low temperature endurancing
System.
Summary of the invention
The defect existed for above-mentioned prior art, it is an object of the invention to provide one and can detect polytype
The multi-functional device for detecting durability of automotive brake component of automotive brake component.
For reaching above-mentioned purpose, the technical scheme is that the multi-functional device for detecting durability of automotive brake component, bag
Including rack, high-low temperature chamber, driving means, load device and measuring and controlling, wherein, described driving means includes pneumatic actuation
Mechanism, hydraulic drive mechanism and mechanical driving mechanism, described pneumatic drive mechanism include main voltage regulator, standby pressure pressure regulator, two
Air accumulator, lock-up cylinder, proportioning valve, electromagnetic valve and flow speed control valve, described main voltage regulator export a road be sequentially connected with standby pressure pressure regulator,
The rod chamber of air accumulator, proportioning valve and lock-up cylinder, another road is sequentially connected with another air accumulator, flow speed control valve and lock-up cylinder,
Being provided with force transducer and displacement transducer between piston and the push rod of described lock-up cylinder, described hydraulic drive mechanism includes depending on
The air pressurizing unit of secondary connection, choke valve, reversing solenoid valve and hand-operated direction valve, described hand-operated direction valve and air accumulator, speed governing
Pipeline between valve connects, and described mechanical driving mechanism includes swing angle device, installs backboard, and be sequentially connected with interior arm-tie,
Support set and outer arm-tie, described swing angle device is at outer arm-tie and installs between backboard, and is connected with the push rod of lock-up cylinder；Institute
Stating load device to include loading cylinder, piston, helical spring and adjusting lever, described piston coordinates load cylinder inner chamber, adjusting lever one end
Connecting piston, the other end stretches out load cylinder, and described helical spring is positioned at load cylinder cavity, and is sheathed on adjusting lever, load
Device is arranged in the left wall of high-low temperature chamber；Described measuring and controlling includes controller, the network switch and the PC of electrical connection
Machine；Described measuring and controlling connects pneumatic drive mechanism, and pneumatic drive mechanism connects hydraulic drive mechanism respectively and machinery drives
Motivation structure, hydraulic drive mechanism and mechanical driving mechanism are all arranged in the right wall of high-low temperature chamber.
Use technique scheme time, can to vacuum booster, master cylinder, hydraulic load sensing proportioning valve, wheel cylinder and
Brake caliper assy etc. five type brake component independently carry out room temperature and high/low temperature durability detection.To vacuum booster,
When master cylinder and hydraulic load sensing proportioning valve are tested, loading section both can be with the analogue loading device outside high-low temperature chamber, also
The wheel cylinder in case or brake caliper assy can be used as load, increase the vigorousness of system.Due to hydraulic load sensing proportioning valve,
Wheel cylinder is similar with the drive system of brake caliper assy, the parts type ratio that the these three station in high-low temperature chamber is installed
It is easier to change, namely in same space, if only need to be in hydraulic load sensing proportioning valve, wheel cylinder and brake caliper assy
When one class or two classes are tested, residue station also can install the brake component of same type, improves work efficiency.
Further, described high-low temperature chamber is provided with button fly front and back pullout (BPO), double door ensure that operator from button fly front and after
Enabling can operate, it is simple to assembly or disassembly detection piece.
Further, in described support set, it is provided with heating resistance wire, can effectively avoid mechanical actuation device Mechanism of External Condensation of Vapor, by
In the conduction of heat of metal, when low-temperature test, the temperature of the metal parts being arranged on tank wall can be down to below freezing.And
Containing moisture in the outer air of case, the metal parts surface outside such tank wall will freeze or frosting, the most attractive in appearance, and does not does
Frozen during low-temperature test or frosting can be melted into water, affected environment.Metal parts outside tank wall is heated by defrosting system,
Making its temperature above freezing, so its surface would not freeze or frosting.
Further, described high-low temperature chamber is provided with dividing plate, high-low temperature chamber is separated into big chamber and loculus, described big chamber and
Little intracavity is equipped with the temperature sensor being electrically connected with the controller.Big simulated engine cabin, chamber, temperature is by high-low temperature chamber control, little
Chamber simulator cockpit, temperature is by computer program control, so that detection environment is closer to true driving condition.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of automotive brake component of the present invention multi-functional device for detecting durability embodiment；
Fig. 2 is the control figure of automotive brake component of the present invention multi-functional device for detecting durability embodiment；
Fig. 3 is mechanical driving mechanism part in automotive brake component of the present invention multi-functional device for detecting durability embodiment
Structural representation；
Fig. 4 is the structure of load device portion in automotive brake component of the present invention multi-functional device for detecting durability embodiment
Schematic diagram.
Detailed description of the invention
As it is shown in figure 1, a kind of multi-functional device for detecting durability of automotive brake component, including frame, high-low temperature chamber 12, drive
Dynamic device, load device 15 and measuring and controlling, wherein, driving means include pneumatic drive mechanism, hydraulic drive mechanism and
Mechanical driving mechanism, pneumatic drive mechanism includes main voltage regulator 1, standby pressure pressure regulator 2, two air accumulators 3, lock-up cylinder 5, ratios
Valve, electromagnetic valve 4 and flow speed control valve 10, main voltage regulator 1 exports a road and is sequentially connected with standby pressure pressure regulator 2, air accumulator 3, proportioning valve and lock
The only rod chamber of cylinder 5, another road is sequentially connected with another air accumulator 3, flow speed control valve 10 and lock-up cylinder 5, described lock-up cylinder 5
Piston and push rod between force transducer 23 and displacement transducer 22 are installed, can accurately measure displacement and the power of push rod, liquid
Pressure drive mechanism includes air pressurizing unit 7, choke valve, reversing solenoid valve 9 and hand-operated direction valve 8, the manual reverse of direction being sequentially connected with
Pipeline between valve 8 with air accumulator 3, flow speed control valve 10 is connected, as it is shown on figure 3, mechanical driving mechanism includes swing angle device 18, installs
Backboard 17, and interior arm-tie 21, support set 20 and the outer arm-tie 19 being sequentially connected with, swing angle device 18 is positioned at outer arm-tie 19 and installs
Between backboard 17, and it is connected with the push rod of lock-up cylinder 5；As shown in Figure 4, load device 15 include load cylinder 151, piston 152,
Helical spring 153 and adjusting lever 154, piston 152 coordinates load cylinder 151 inner chamber, and adjusting lever 154 one end connects piston 152, another
End stretches out load cylinder 151, and helical spring 153 is positioned at load cylinder 151 cavity, and is sheathed on adjusting lever 154, load device 15
It is arranged in the left wall of high-low temperature chamber 12；Measuring and controlling include respectively with controller and the PC of network exchange mechatronics
Machine, the network switch the most finally connects sensor and actuator；Measuring and controlling connects pneumatic drive mechanism, pneumatic driving
Motivation structure connects hydraulic drive mechanism and mechanical driving mechanism, hydraulic drive mechanism and mechanical driving mechanism respectively and is all arranged in height
The right wall of cryostat 12.
In the present embodiment, whole dress system is divided into three districts, and pneumatic district, hydraulic region and height warm area, high-low temperature chamber 12 is right
Wall is provided with four set mechanical actuation devices, becomes square arrangement, is provided with four set pneumatic actuating devices in the frame in pneumatic district.?
Hydraulic region is provided with four set fluid pressure drive device hydraulic parts, external four hydraulic port of each hydraulic power source, i.e. four set hydraulic power sources
16 set clamp or wheel cylinder 14 can be driven to work with external 16 hydraulic port.
Such as Fig. 1, high-low temperature chamber 12 is provided with button fly front 121 and back pullout (BPO) 122, and double door ensures that operator is from button fly front
121 and back pullout (BPO) 122 can operate, it is simple to assembly or disassembly detection piece.
It is provided with heating resistance wire in support set 20, can effectively avoid mechanical actuation device Mechanism of External Condensation of Vapor, due to metal
Conduction of heat, when low-temperature test, the temperature of the metal parts being arranged on tank wall can be down to below freezing.And the outer air of case
In containing moisture, the metal parts surface outside such tank wall will freeze or frosting, the most attractive in appearance, and does not do low-temperature test
Time frozen or frosting can be melted into water, affect environment.Metal parts outside tank wall is heated by defrosting system so that it is temperature
Above freezing, so its surface would not freeze or frosting..
High-low temperature chamber 12 is provided with dividing plate, high-low temperature chamber 12 is separated into big chamber and loculus, big chamber and little intracavity and is equipped with
The temperature sensor being electrically connected with the controller.Big simulated engine cabin, chamber, temperature is controlled by high-low temperature chamber 12, loculus drive simulating
Cabin, temperature is by computer program control, so that detection environment is closer to true driving condition.
Concrete detection method and step:
In conjunction with Fig. 1 and Fig. 2, in the present embodiment, illustrating as a example by the durability of vacuum booster 6 detects, vacuum helps
Power device 6 Work durability test test method:
1) test requirements document:
A) Work durability test includes that room temperature endurancing, high temperature durability test and low temperature durability are tested.B)
During test, master cylinder (or being equivalent to the load of master cylinder) is arranged on vacuum booster 6, is equivalent to vacuum booster 6
State on vehicle, connects and keeps the vacuum source of 66.7kPa ± 2.7kPa, adjusts the stroke of output loading, makes vacuum help
The push rod of power device 6 liquid when reaching the 70%～80% of total travel, when master cylinder (or load) can set up Max point of booster force
Pressure more than 90%, ambient temperature, test frequency, cycle-index, movement time is shown in Table 1(or both sides of supply and demand are decided through consultation).C) test suitable
Sequence must by room temperature, high temperature, low temperature order carry out, in process of the test, should keep output pressure, system vacuum consistent.
Table 1
2) detecting step:
A) test specimen clamping
Product (vacuum booster 6 is together with master cylinder assembly or master cylinder assembly) is installed to the installation of four stations of testing stand
On backboard 17.The vacuum booster 6 of different types, need to select corresponding fixture and adjustment pull bar length to install, install and want
Solid and reliable, the push rod of vacuum booster 6 can not be made during installation to have precommpression stroke, i.e. vacuum booster 6 push rod and drive rod
Between should leave 0.5～1.5mm gap.By vacuum hose, vacuum booster 6 is connected with vacuum source, for vacuum servo
Device 6 provides vacuum.By hydraulic hose by master cylinder ante-chamber and back cavity and master cylinder load device 15 or caliper 13 and wheel cylinder 14 phase
Even, load is provided for booster together with master cylinder assembly or master cylinder assembly.
B) pivot angle is adjusted
Mobile angle modulation block position on angle modulation bar, i.e. adjustable vacuum booster 6 push rod axis and the angle of trunnion axis.
The initial angle of vacuum booster 6 push rod axis and trunnion axis should be adjusted according to the total kilometres of push rod during test, make always to put as far as possible
Angle relative level axial symmetry.
C) hydraulic circuit aerofluxus
Before test, reply hydraulic circuit is exhausted, and otherwise hydraulic circuit can not normally set up hydraulic pressure, and test procedure is with regard to nothing
Method goes on.
Open the main interface of computer software, under the manual operation of main interface or inspection menu, operation electromagnetic valve 4 and proportioning valve,
Make push rod advance, return.While advancing, open bleed screw, the brake fluid being contaminated with gas is discharged, then tightens and put
Gas screw, then make push rod return, the most repeated multiple times can realize aerofluxus.
D) software operation
Opening the main interface of computer software, there are " parameter setting ", " endurancing ", " data base " in this interface, " exit and be
System " several menus.First " parameter setting " is clicked on after entering main interface.Principal set up type of drive (selects cylinder or pressurized cylinder
Being used as driving means, this test uses air cylinder driven), pressure, build pressure time (s), the dwell time (s), release time (s),
Test number (TN) (secondary).
After setting parameter, the main interface of long duration test can be entered, click on and start test, just can test.Pressure,
The signals such as displacement, vacuum and temperature, and transmit signals to computer and show, calculate and analyze.Above process of the test is in turn
Carry out at four stations.
After test, click data preserves, and data are just stored in data base.
Above is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art, not
On the premise of departing from present configuration, it is also possible to making some deformation and improvement, these also should be considered as the protection model of the present invention
Enclosing, these are all without affecting effect and the practical applicability that the present invention implements.
Claims (4)
1. the multi-functional device for detecting durability of automotive brake component, the high-low temperature chamber including frame and being arranged in frame, driving
Device, load device, measuring and controlling, it is characterised in that described measuring and controlling connects pneumatic drive mechanism, pneumatic driving
Motivation structure connects hydraulic drive mechanism and mechanical driving mechanism, hydraulic drive mechanism and mechanical driving mechanism respectively and is all arranged in height
The right wall of cryostat, described load device is arranged in the left wall of high-low temperature chamber；
Described driving means includes pneumatic drive mechanism, hydraulic drive mechanism and mechanical driving mechanism, described pneumatic drive mechanism
Including main voltage regulator, standby pressure pressure regulator, two air accumulators, lock-up cylinder, proportioning valve, electromagnetic valve and flow speed control valve, described main pressure regulator
Device exports a road and is sequentially connected with standby pressure pressure regulator, air accumulator, proportioning valve and the rod chamber of lock-up cylinder, and another road is sequentially connected with separately
One air accumulator, flow speed control valve and lock-up cylinder, be provided with force transducer and displacement between piston and the push rod of described lock-up cylinder
Sensor, described hydraulic drive mechanism includes air pressurizing unit, choke valve, reversing solenoid valve and the manual reverse of direction being sequentially connected with
Valve, the pipeline between described hand-operated direction valve with air accumulator, flow speed control valve is connected, described mechanical driving mechanism include swing angle device,
Installing backboard, and interior arm-tie, support set and the outer arm-tie being sequentially connected with, described swing angle device is positioned at outer arm-tie and installs backboard
Between, and be connected with the push rod of lock-up cylinder；
Described load device includes loading cylinder, piston, helical spring and adjusting lever, and described piston coordinates load cylinder inner chamber, adjusts
Bar one end connects piston, and the other end stretches out load cylinder, and described helical spring is positioned at load cylinder cavity, and is sheathed on adjusting lever
On；
Described measuring and controlling includes controller, the network switch and the PC of electrical connection.
The multi-functional device for detecting durability of automotive brake component the most according to claim 1, it is characterised in that described height
Incubator is provided with button fly front and back pullout (BPO).
The multi-functional device for detecting durability of automotive brake component the most according to claim 1, it is characterised in that described support
Heating resistance wire it is provided with in set.
The multi-functional device for detecting durability of automotive brake component the most according to claim 1, it is characterised in that described height
Being provided with dividing plate in incubator, high-low temperature chamber is separated into big chamber and loculus, described big chamber and little intracavity are equipped with and are electrically connected with controller
The temperature sensor connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512258.XA CN104236923B (en) | 2014-09-29 | 2014-09-29 | Multifunctional durability test device for testing durability of automobile brake parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512258.XA CN104236923B (en) | 2014-09-29 | 2014-09-29 | Multifunctional durability test device for testing durability of automobile brake parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104236923A CN104236923A (en) | 2014-12-24 |
| CN104236923B true CN104236923B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410512258.XA Expired - Fee Related CN104236923B (en) | 2014-09-29 | 2014-09-29 | Multifunctional durability test device for testing durability of automobile brake parts |
Country Status (1)
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| CN (1) | CN104236923B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124187B (en) * | 2016-08-19 | 2018-09-11 | 上海工程技术大学 | A kind of fatigue experimental device of automobile vacuum booster supporting plate |
| CN106704418B (en) * | 2017-02-07 | 2018-11-13 | 上海衡拓液压控制技术有限公司 | Volume and the adjustable simulation vessel of rigidity |
| CN106996874B (en) * | 2017-05-26 | 2023-08-04 | 杭州沃镭智能科技股份有限公司 | Hydraulic simulation load device for performance test of electronic booster with main cylinder assembly |
| CN107202685B (en) * | 2017-06-15 | 2023-04-28 | 吉林大学 | Hardware-in-the-loop simulation test bed and test method for electromechanical brake booster |
| CN113109045B (en) * | 2021-03-11 | 2024-01-05 | 东风商用车有限公司 | Durability test method for booster assembly |
| CN113624509B (en) * | 2021-07-26 | 2024-04-19 | 中汽创智科技有限公司 | Hydraulic simulation load device and test system |
| CN113447258A (en) * | 2021-08-12 | 2021-09-28 | 中汽创智科技有限公司 | Brake system durability testing device and brake system durability testing method |
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| CN204154509U (en) * | 2014-09-29 | 2015-02-11 | 重庆工商职业学院 | Automobile brake parts durability detecting system |
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| CN104236923A (en) | 2014-12-24 |
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