CN106092586A - A kind of engine brake functional trial platform and test method - Google Patents
A kind of engine brake functional trial platform and test method Download PDFInfo
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- CN106092586A CN106092586A CN201610630699.9A CN201610630699A CN106092586A CN 106092586 A CN106092586 A CN 106092586A CN 201610630699 A CN201610630699 A CN 201610630699A CN 106092586 A CN106092586 A CN 106092586A
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- oil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to engine rig test technology, refer in particular to functional trial platform and the test method of a kind of engine brake, including drive motor, fuel tank, oil pump, for detecting the encoder of the camshaft speed of test product and for detecting the displacement transducer of test product valve displacement；Drive motor for driving the cam axle of test product；Oil inlet pipe in connection has the oil inlet passage that the oil pump in fuel tank enters test product on the oil-out of oil pump, fuel tank connects and has the oil return pipe of the recovery of oil flowed out by test product；Encoder gathers the rotating speed of the camshaft of test product, the displacement of displacement transducer record valve, and the data obtained are sent to controller, controller generate the curve chart of valve stroke and camshaft degree mutual relation by encoder, displacement transducer；The present invention can study braking lift and the test product swing-arm features change impact on braking lift of electromotor under different oil pressure, oil temperature, rotating speed.
Description
Technical field:
The invention belongs to engine rig test technology, refer in particular to functional trial platform and the test of a kind of engine brake
Method.
Background technology:
Integrated form compression-release type brake rocker arm of engine technology, as a kind of new and high technology, also lacks the most at home and grinds
Study carefully, especially for the research of its braking amount size, very the fewest, anxious to be resolved.The purpose of this Test-bed Design is main
It is the duty of simulated engine brake, exhaust valve displacement when real-time tracking monitoring engine brake is in on-position
Curve, that can study different rotating speeds, oil temperature, oil pressure and swing-arm features changes the impact on braking simultaneously.
Summary of the invention:
It is an object of the invention to provide a kind of functional examination of engine brake studying engine brake braking characteristic
Test platform.
The present invention is achieved in that
A kind of functional trial platform of engine brake, including drive motor, fuel tank, oil pump, for detecting tested product
The encoder of the camshaft speed of product and for detecting the displacement transducer of test product valve displacement；Described driving motor is used for
Drive the cam axle of test product；The oil-out of oil pump connects and has the oil-feed that the oil pump in fuel tank is entered test product
Oil inlet pipe in passage, fuel tank connects and has the oil return pipe of the recovery of oil flowed out by test product；Described driving motor, oil pump,
Encoder, displacement transducer are all connected with controller；Encoder gathers the rotating speed of the camshaft of test product, and displacement transducer is remembered
The displacement of record valve, the data that obtain send to controller by encoder, displacement transducer, by controller generate valve stroke with
The curve chart of camshaft degree mutual relation.
In the functional trial platform of above-mentioned a kind of engine brake, described driving motor is connected with converter, becomes
Frequently device is connected with controller, Frequency Converter Control drive the rotating speed of motor.
In the functional trial platform of above-mentioned a kind of engine brake, described fuel tank is provided with heater, heating
Oil in fuel tank is heated by device, and heater is connected with controller.
In the functional trial platform of above-mentioned a kind of engine brake, described fuel tank is additionally provided with oil temperature is carried out
The temperature sensor of detection, the temperature detected is sent to controller by temperature sensor, when temperature sets in advance higher than controller
During fixed temperature value, controller controls relay and disconnects, and heater stops heating.
In the functional trial platform of above-mentioned a kind of engine brake, the oil-out of described oil pump is provided with electronic
Pressure regulator valve, is provided with the pressure transducer detecting oil pressure in pipe on oil inlet pipe, and pressure transducer is connected with controller,
The oil pressure detected is sent to controller by pressure transducer, and controller control electric pressure-regulating valve adjusts the pressure of hydraulic fluid port and will enter
Oil pressure regulation in oil pipe is to oil pressure value set in advance.
In the functional trial platform of above-mentioned a kind of engine brake, the output shaft of described driving motor passes through shaft coupling
Device is connected with the camshaft of test product.
In the functional trial platform of above-mentioned a kind of engine brake, described encoder is arranged on the convex of test product
Wheel the tip of the axis.
In the functional trial platform of above-mentioned a kind of engine brake, also including electromagnetic valve, electromagnetic valve is to install
In test product, for controlling the open and close of test product braking, electromagnetic valve is connected with controller.
In the functional trial platform of above-mentioned a kind of engine brake, described driving motor is arranged on stand, oil
Case, oil pump are arranged on below stand.
It is a further object to provide the test method of the functional trial platform of a kind of engine brake, including
Following steps:
(1) installing test product to relevant position on stand, the camshaft of test product is by shaft coupling and driving electricity
The output shaft of machine connects；
(2) on camshaft, encoder it is provided with；
(3) side at the valve of test product is provided with the displacement transducer that detection valve moves；
(4) one end of oil inlet pipe being connected oil pump, the other end is connected with the oil inlet passage of test product, one end of oil return pipe
Connecting the oil discharge passage of test product, the other end is connected with fuel tank；
(5) preset in fuel tank oil pressure in the temperature of oil, oil inlet pipe on the controller, set by converter and drive electricity
The rotating speed of machine；
(6) by controller heater, the oil in fuel tank is heated by heater, and temperature sensor detection fuel tank
Interior oil temperature, when oil temperature exceedes predetermined temperature, controller controls relay and disconnects, and heater stops heating, is less than
During predetermined temperature, continuous heating；
(7) started oil pump by controller, by the oil pressure in pressure transducer detection oil inlet pipe, and feed data back to control
Device, is made the oil pressure in oil inlet pipe be maintained at the force value of setting by controller control electric pressure-regulating valve；
(8) started driving motor, and/energising that electromagnetic valve is broken by controller, implement the normal/braking operation of test product
Pattern, drives cam axle and the valve knee-action of driven by motor test product, and the encoder on camshaft gathers cam
The rotating speed of axle, displacement transducer gathers the displacement data of valve, and the data gathered are sent to controlling by encoder, displacement transducer
Device, is generated the curve chart of valve stroke and camshaft degree mutual relation by controller.
Present invention have the advantage that
1, the braking lift of electromotor and test product swing-arm features under the present invention can study different oil pressure, oil temperature, rotating speed
Change the impact on braking lift；
2, compared to complicated engine pedestal, the present invention can indirectly study the system of electromotor by research braking lift
Dynamic performance.
Accompanying drawing illustrates:
Fig. 1 is the simplified schematic diagram of the present invention.
In figure: 1-drives motor, 2-fuel tank, 3-oil pump, 4-test product, 5-camshaft, 6-encoder, 7-valve, 8-
Displacement transducer, 9-shaft coupling, 10-output shaft, 11-oil inlet pipe, 12-oil return pipe, 13-converter, 14-heater, 15-temperature
Sensor, 16-electric pressure-regulating valve, 17-pressure transducer, 18-stand, 19-Oil pump electrical machinery.
Specific embodiments:
Below in conjunction with the accompanying drawings specific embodiments of the present invention are described in further detail, see Fig. 1:
The functional trial platform of a kind of engine brake, including driving motor 1, fuel tank 2, oil pump 3, tested for detecting
The encoder 6 of camshaft 5 rotating speed of product 4 and for detecting the displacement transducer 8 of test product 4 valve 7 displacement；The present invention's
Test product 4 is engine brake.The encoder 6 of the present invention is arranged on the end of camshaft 5, it is also possible to according to practical situation
It is arranged on camshaft 5 elsewhere.
The present invention drives motor 1 for driving the camshaft 5 of test product 4 to rotate, and the connected mode of the present invention is logical
Cross shaft coupling 9 to connect.Specifically the output shaft 10 driving motor 1 is connected with the camshaft 5 of test product 4 by shaft coupling 9.
Belt gear, chain drive or gear drive etc. can certainly be used by driving motor 1 to drive tested product
The camshaft 5 of product 4 rotates.The oil-out of oil pump 3 connects and has the oil inlet passage that the oil pump in fuel tank 2 is entered test product 4
Interior oil inlet pipe 11, fuel tank 2 connects and has the oil return pipe 12 of the recovery of oil flowed out by test product 4；Described driving motor 1, oil
Pump 3, encoder 6, displacement transducer 8 are all connected with controller；Encoder 6 gathers the rotating speed of the camshaft 5 of test product 4, position
Displacement sensor 8 records the displacement of valve 7, and the data obtained are sent to controller, by controller by encoder 6, displacement transducer 8
Generate the curve chart of valve stroke and camshaft degree mutual relation.
The driving motor 1 of the present invention is connected with converter 13, and converter 13 is connected with controller, converter 13 control to drive
The rotating speed of galvanic electricity machine 1.
Owing to, under different oil temperatures, the result drawn also is different.Described fuel tank 2 is provided with heater
14, the oil in fuel tank 2 is heated by heater 14, and heater 14 is connected with controller.
In order to control oil temperature, fuel tank 2 is additionally provided with the temperature sensor 15 detecting oil temperature, temperature sensor 15
The temperature detected is sent to controller, and when temperature is higher than controller predetermined temperature value, controller controls relay
Device disconnects, and heater 15 stops heating.
It is provided with electric pressure-regulating valve 16 on the oil-out of the oil pump 3 of the present invention, oil inlet pipe 11 is provided with to oil in pipe
Pressure carries out the pressure transducer 17 detected, and pressure transducer 17 is connected with controller, the oil pressure that pressure transducer 17 will detect
Being sent to controller, controller controls electric pressure-regulating valve 16 and adjusts the pressure of hydraulic fluid port by the oil pressure regulation in oil inlet pipe 11 in advance
The oil pressure value first set.
The braking of test product 4 is by electromagnetic valve control.Electromagnetic valve is used for controlling the open and close of test product 4 braking,
Electromagnetic valve is connected with controller.When solenoid valves, braking is opened；Electromagnetic valve no power, then braking is not turned on.
It is provided with control for brake frame on the controller, includes normal, two options of braking.When selecting normal option, control
Device processed controls relay and disconnects, and electromagnetic valve no power brakes off；When selecting braking option, controller controls relay and connects,
Solenoid valves, braking is opened.
The oil pressure driven in the rotating speed of motor 1, fuel tank 2 in oil temperature and oil inlet pipe 11 of the present invention all can adjust.In control
The control interface of device processed includes rotating speed frame, oil temperature frame and oil pressure frame.Rotating speed frame, oil temperature frame and oil pressure frame can be preset
Numerical value.
Controller sets signal i.e. camshaft 5 corner of encoder 6 as abscissa, the signal of displacement transducer 8 i.e. gas
Door 7 displacements, as vertical coordinate, just can generate valve stroke and comprise the curve chart of braking lift；Interface medium speed is controlled by adjusting
The size of numerical value in frame, oil temperature frame, oil pressure frame, the valve stroke-angle Curve under available different rotating speeds, oil temperature, oil pressure.
In order to easy to use, described driving motor 1 is arranged on stand 18, and fuel tank 2, oil pump 3 are arranged on below stand 18.
The present invention can be selected for the machine oil that electromotor uses, and its temperature can be controlled by the heater 14 being arranged in fuel tank 2
System, and detected by temperature sensor 15.
In described oil temperature frame, input numerical value define oil temperature.If the numerical value of input is more than current temperature, then control
Device controls relay and connects so that heater 14 powers on, and heats oil；When temperature is heated to inputted numerical value, control
Device processed controls relay and disconnects, heater 14 power-off, and the most controlled liquefaction temperature is stable.
The oil pressure of the present invention is regulated by the electric pressure-regulating valve 16 being arranged on oil pump 3 oil-out, and passes through pressure transducer
17 detect.
In described oil pressure frame, input numerical value define oil pressure.If the numerical value of input is different from actual pressure, then control
Device controls electric pressure-regulating valve 16 action, thus can pressure stability be controlled at the numerical value of input.
Oil circuit of the present invention is as follows:
Oil pump 3 is driven by Oil pump electrical machinery 19, makes oil pump out from fuel tank 2, after regulating oil pressure by electric pressure-regulating valve 16, and warp
Cross in-line 11 to enter in test product 4；Oil uses simultaneously as lubricating oil and brake oil；Oil is from test product 4 afterwards
Flow out, in oil return pipe 12 returns to fuel tank 2, thus form circulation.
The operation principle of the present invention is:
By inputting numerical value in oil temperature frame, oil temperature can be made in fixing value stable by adding heat pipe 9；By at oil pressure frame
Middle input numerical value, can make oil pressure stable in fixing value by electric pressure-regulating valve 16；By inputting numerical value in rotating speed frame, pass through
Converter 13 can make the rotating speed of driving motor 1 be maintained at fixed numbers；Motor 1 is driven to drive camshaft 3 to revolve by shaft coupling 9
Turning, camshaft 5 drives test product 4 action so that valve 7 knee-action；By control for brake frame control braking unlatching with
Close；It is contained in the encoder 6 of camshaft 5 end to follow camshaft 5 and rotate, and sends outer triggering signal to capture card；Gather
Blocking to send to displacement transducer 8 and gather signal, record valve 7 displacement also passes capture card back；Controller passes through program by encoder 6
Signal i.e. camshaft 5 corner as vertical coordinate, just can generate valve as abscissa, i.e. valve 7 displacement of displacement transducer 8 signal
Lift comprises the curve chart of braking lift；By adjusting the size of numerical value in rotating speed frame, oil temperature frame, oil pressure frame, available difference
Valve stroke-angle Curve under rotating speed, oil temperature, oil pressure；Additionally can also study rocking arm mistakes and omissions dress, cleannes, workpiece size
And the impact that roughness etc. is on braking.
It is a further object to provide the test method of the functional trial platform of a kind of engine brake, including
Following steps:
(1) test product 4 is installed relevant position to stand 18, the camshaft of test product 45 by shaft coupling 9 with
The output shaft 10 driving motor 1 connects；
(2) on camshaft 5, encoder 6 it is provided with；
(3) side at the valve 7 of test product 4 is provided with the displacement transducer 8 that detection valve 7 moves；
(4) one end of oil inlet pipe 11 being connected oil pump 3, the other end is connected with the oil inlet passage of test product 4, oil return pipe 12
One end connect test product 4 oil discharge passage, the other end is connected with fuel tank 2；
(5) preset in fuel tank 2 oil pressure in the temperature of oil, oil inlet pipe 11 on the controller, set by converter 13
Drive the rotating speed of motor 1；
(6) by controller heater 14, the oil in fuel tank 2 is heated by heater 14, and temperature sensor 15
Oil temperature in detection fuel tank 2, when oil temperature exceedes predetermined temperature, controller controls relay and disconnects, and heater 14 stops
Only heating, during less than predetermined temperature, continuous heating；
(7) started oil pump 3 by controller, pressure transducer 17 detect the oil pressure in oil inlet pipe 11, and by data feedback
To controller, controller control electric pressure-regulating valve 16 oil pressure in oil inlet pipe 11 is made to be maintained at the force value of setting；
(8) started driving motor 1, and/energising that electromagnetic valve is broken by controller, implement the normal/braking work of test product 4
Operation mode, drives motor 1 to drive the camshaft 5 of test product 4 to rotate and valve 7 knee-action, the encoder 6 on camshaft 5
Gathering the rotating speed of camshaft 5, displacement transducer 8 gathers the displacement data of valve 7, and encoder 6, displacement transducer 8 are by collection
Data send to controller, controller generate the curve chart of valve stroke and camshaft degree mutual relation.
Above-described embodiment is only one of presently preferred embodiments of the present invention, not limits the practical range of the present invention with this, therefore:
The equivalence change that all shapes under this invention, structure, principle are done, within all should being covered by protection scope of the present invention.
Claims (10)
1. the functional trial platform of an engine brake, it is characterised in that: include drive motor, fuel tank, oil pump, for examining
Survey the encoder of the camshaft speed of test product and for detecting the displacement transducer of test product valve displacement；Described driving
Motor is for driving the cam axle of test product；The oil-out of oil pump connects to have the oil pump in fuel tank is entered tested product
Oil inlet pipe in the oil inlet passage of product, fuel tank connects and has the oil return pipe of the recovery of oil flowed out by test product；Described driving electricity
Machine, oil pump, encoder, displacement transducer are all connected with controller；Encoder gathers the rotating speed of the camshaft of test product, displacement
The displacement of sensor record valve, the data obtained are sent to controller, controller generate gas by encoder, displacement transducer
Door lift and the curve chart of camshaft degree mutual relation.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: described driving electricity
Machine is connected with converter, and converter is connected with controller, Frequency Converter Control drive the rotating speed of motor.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: on described fuel tank
Being provided with heater, the oil in fuel tank is heated by heater, and heater is connected with controller.
The functional trial platform of a kind of engine brake the most according to claim 3, it is characterised in that: on described fuel tank
Being additionally provided with the temperature sensor detecting oil temperature, the temperature detected is sent to controller by temperature sensor, works as temperature
When degree is higher than controller predetermined temperature value, controller controls relay and disconnects, and heater stops heating.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: described oil pump
It is provided with electric pressure-regulating valve on oil-out, oil inlet pipe is provided with the pressure transducer detecting oil pressure in pipe, pressure
Sensor is connected with controller, and the oil pressure detected is sent to controller by pressure transducer, and controller controls electric pressure-regulating valve
Oil pressure in oil inlet pipe is regulated to oil pressure value set in advance by the pressure adjusting hydraulic fluid port.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: described driving electricity
The output shaft of machine is connected with the camshaft of test product by shaft coupling.
7. according to the functional trial platform of a kind of engine brake described in claim 1 or 6, it is characterised in that: described volume
Code device is arranged on the cam the tip of the axis of test product.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: also include electricity
Magnet valve, electromagnetic valve is mounted in test product, for controlling the open and close of test product braking, electromagnetic valve and controller
Connect.
The functional trial platform of a kind of engine brake the most according to claim 1, it is characterised in that: described driving electricity
Machine is arranged on stand, and fuel tank, oil pump are arranged on below stand.
10. the test method of the functional trial platform of an engine brake, it is characterised in that: comprise the steps:
(1) installing test product to relevant position on stand, the camshaft of test product is by shaft coupling and driving motor
Output shaft connects；
(2) on camshaft, encoder it is provided with；
(3) side at the valve of test product is provided with the displacement transducer that detection valve moves；
(4) one end of oil inlet pipe connects oil pump, and the other end is connected with the oil inlet passage of test product, and oil return pipe one end connects tested
The oil discharge passage of product, the other end is connected with fuel tank；
(5) preset in fuel tank oil pressure in the temperature of oil, oil inlet pipe on the controller, set by converter and drive motor
Rotating speed；
(6) by controller heater, the oil in fuel tank is heated by heater, and in temperature sensor detection fuel tank
Oil temperature, when oil temperature exceedes predetermined temperature, controller controls relay and disconnects, and heater stops heating, less than in advance
During the temperature set, continuous heating；
(7) started oil pump by controller, by the oil pressure in pressure transducer detection oil inlet pipe, and feed data back to controller,
The oil pressure in oil inlet pipe is made to be maintained at the force value of setting by controller control electric pressure-regulating valve；
(8) started driving motor, and/energising that electromagnetic valve is broken by controller, implement the normal/braking operation mould of test product
Formula, drives cam axle and the valve knee-action of driven by motor test product, and the encoder on camshaft gathers camshaft
Rotating speed, displacement transducer gather valve displacement data, encoder, displacement transducer will gather data send to control
Device, is generated the curve chart of valve stroke and camshaft degree mutual relation by controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630699.9A CN106092586A (en) | 2016-08-04 | 2016-08-04 | A kind of engine brake functional trial platform and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630699.9A CN106092586A (en) | 2016-08-04 | 2016-08-04 | A kind of engine brake functional trial platform and test method |
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| Publication Number | Publication Date |
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| CN106092586A true CN106092586A (en) | 2016-11-09 |
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ID=57454608
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610630699.9A Pending CN106092586A (en) | 2016-08-04 | 2016-08-04 | A kind of engine brake functional trial platform and test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063698A (en) * | 2016-12-30 | 2017-08-18 | 中国船舶重工集团公司第七研究所 | A kind of mechanism for testing, platform and the method for testing of the side-mounted changeable air valve of internal combustion engine |
| CN108007678A (en) * | 2017-11-13 | 2018-05-08 | 杭州优纳摩擦材料有限公司 | A kind of wind power yawing brake tester |
| CN109696315A (en) * | 2019-02-28 | 2019-04-30 | 李俊光 | A kind of motor vehicle braking system simulation test stand |
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| CN205898460U (en) * | 2016-08-04 | 2017-01-18 | 浙江康和机械科技有限公司 | Functional test bench of engine brake |
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| WO1999042718A1 (en) * | 1998-02-23 | 1999-08-26 | Cummins Engine Company, Inc. | Premixed charge compression ignition engine with optimal combustion control |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107063698A (en) * | 2016-12-30 | 2017-08-18 | 中国船舶重工集团公司第七研究所 | A kind of mechanism for testing, platform and the method for testing of the side-mounted changeable air valve of internal combustion engine |
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| CN109696315A (en) * | 2019-02-28 | 2019-04-30 | 李俊光 | A kind of motor vehicle braking system simulation test stand |
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Application publication date: 20161109 |