CN203432797U - Thermal fatigue testing machine for valve body structure of bimodal silencer - Google Patents
Thermal fatigue testing machine for valve body structure of bimodal silencer Download PDFInfo
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- CN203432797U CN203432797U CN201320563915.4U CN201320563915U CN203432797U CN 203432797 U CN203432797 U CN 203432797U CN 201320563915 U CN201320563915 U CN 201320563915U CN 203432797 U CN203432797 U CN 203432797U
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Abstract
The utility model relates to a thermal fatigue testing machine for a valve body structure of a bimodal silencer, which belongs to the technical field in testing the endurance of an elastic element equipped valve body structure in a thermal state, and is used for testing the endurance of the valve body structure of the bimodal silencer in a practical work state. The testing machine comprises a frame, a heating system, a clamping device, a mechanical connection-rod transmission system, a cooling system and a control system, wherein the heating system is arranged on the frame and used for heating the valve body structure, the clamping device is arranged on the frame and used for fixing the valve body structure, the mechanical connection-rod transmission system drives opening/closing of a valve of the valve body structure, and the control system controls work of the whole thermal fatigue testing machine. The thermal fatigue testing machine of the utility model can accurately simulate the exhausting temperature which changes circularly in an automobile exhausting system as well as frequent opening and closing of the valve body structure, and can detect the endurance of the valve body structure of the bimodal silencer in different conditions in practical work, thereby guaranteeing the endurance of the bimodal silencer.
Description
Technical field
The utility model relates to valve body structure with the flexible member permanance detection technique field under hot environment, particularly a kind of thermal fatigue tester of bimodal sound suppressor valve body structure.
Background technology
Bimodal sound suppressor can effectively reduce auto exhaust noise, can reduce volume and the exhaust back pressure of automobile exhaust muffler simultaneously, in automobile exhaust system, be with a wide range of applications (referring to document: Pang Jian. automobile noise and vibration: theoretical and application, Beijing: publishing house of Beijing Institute of Technology, 2006).The core component of bimodal sound suppressor is valve body structure, and valve body structure opening and closing under the effect of high-temperature exhaust air air-flow realize the reduction of exhaust back pressure and subduing of exhaust noise thereby change air-flow by path and inner noise elimination structure.Valve body structure is mainly comprised of parts such as valve casing, valve, mandrel and torsion springs, structure is comparatively complicated, and the permanance of valve body structure has determined the permanance of bimodal sound suppressor, therefore need to carry out endurancing to valve body structure, guarantee quality and the quality of bimodal sound suppressor.
Not for the equipment of bimodal sound suppressor valve body structure thermal fatigue test, Patents also only limits to the thermal fatigue test equipment of metal material and spring in the market.As patent CN2731439Y has announced a kind of thermal fatigue testing machine for spring, this kind of thermal fatigue testing machine for spring is mainly used in helical spring heat fatigue test, it heats with resistance furnace, with solenoid, drives, and high energy carries out the thermal fatigue test under 200 degrees Celsius.But this testing machine cannot carry out the heat fatigue test of valve body structure, can not set the peculiar working cycle operating mode of automobile, and the maximum temperature of test can not meet the requirement of valve body structure test simultaneously.Patent CN176970A has announced a kind of thermal fatigue tester, and this kind of testing machine is mainly used in the thermal fatigue test of metal material.Testing machine adopts the residence time of jacking system control metal material in heating system and cooling system to carry out heat fatigue test to metal material exemplar.But this testing machine cannot carry out the switching fatigue experiment of valve body structure in the environment that colds and heat succeed each other.Patent CN102507352A has announced a kind of torsional spring fatigue tester, and this kind of testing machine is mainly used in the testing fatigue of the torsion spring in normal temperature situation, but cannot carry out the testing fatigue under alternating hot and cold environment.
In automobile acceleration-deceleration process, the temperature of exhaust system inside has the variation of 200 ℃ of left and right, and valve body structure also can constantly change opening angle under the effect that changes air-flow in addition.In addition, automobile is in cold start-up process, and exhaust system can suffer larger thermal shock, and the temperature of internal system can rapidly increase to 400 ℃ ~ 500 ℃ from normal temperature.Thereby the working environment of bimodal sound suppressor valve body structure not only has the circulation change of temperature, also has the frequent open and close action of valve body structure, this permanance to valve body structure is a test greatly, and existing fatigue tester all cannot meet the needs of bimodal sound suppressor valve body structure durability test.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of thermal fatigue tester of bimodal sound suppressor valve body structure is provided.
For solving above technical matters, the utility model adopts following technical scheme:
A kind of thermal fatigue tester of bimodal sound suppressor valve body structure, comprise frame, be arranged in described frame for the heating system to described valve body structure heating, be arranged in described frame for fixing the clamp device of described valve body structure, for driving the mechanical linkage kinematic train of the valve opening and closing of described valve body structure, cooling system, control the control system of whole thermal fatigue tester work, described mechanical linkage kinematic train comprises the motor being fixedly installed in described frame, be connected with described motor and by described motor, driven the flywheel rotating, one end be connected with described flywheel and by described flywheel drive motion pull bar and by described pull bar drive move reciprocatingly and for promoting the driven unit of the valve opening and closing on described valve body structure,
Described cooling system comprises axle cooling package, the injection spray pipe for cooling described valve body structure with the circulation change of simulated automotive acceleration and deceleration process delivery temperature for cooling described driven unit;
Described control system comprise working temperature for feeding back described valve body structure controlling the thermopair of the state of cyclic operation of described valve body structure torture test, be connected for the frequency converter that regulates described motor speed with described motor, be arranged in described frame and for calculating sensor, the industrial computer of the number of times of described valve opening and closing, described industrial computer has input and output control panel, circuit of motor speed regulation control based, cycle-counter circuit, temperature control circuit, cooling water circulation control circuit, warning circuit.
Described frame comprises bottom base plate, middle base plate, connects a plurality of columns of described bottom base plate and described middle base plate, top base plate, the polylith coverboard between described middle base plate and described top base plate, and described polylith coverboard, described middle base plate, described bottom base plate surround a cavity jointly.
Described mechanical linkage kinematic train also comprises the bearing block assembly being fixedly installed on described top base plate, and described driven unit comprises that driving shaft, one end of through described bearing block assembly and one end, being connected with the other end of described pull bar are connected with the other end of described driving shaft and for promoting the actuator of described valve opening and closing.
Described flywheel is provided with the adjustment plate of one end for adjusting described pull bar eccentric throw on described flywheel.
Described top base plate offers installing port, described heating system is arranged in described cavity and passes described installing port, described heating system comprises the internal insulation cover being arranged in described cavity, be arranged on the heated sealant seat of described internal insulation cover top, be arranged on described internal insulation cover inner and and described internal insulation cover between form gapped heating inner liner, be arranged on the heating wire in described heating inner liner, in described gap, be filled with insulation material, between described internal insulation cover and described heated sealant seat, be provided with for described internal insulation cover is installed, described heated sealant seat, the heating installing plate of described heating inner liner.
Described heating system also comprises for preventing that heat, from the lost external insulation cover in described heating system top, is provided with for observing the quartz glass of thermal fatigue test situation on described external insulation cover.
Described clamp device is arranged in described heating system, and it comprises the clamping location-plate being arranged on described heated sealant seat, two sides that are arranged on described clamping location-plate and for clamping the clamping clamp of described valve body structure.
The steel plate that described bottom base plate, described middle base plate are greater than 3mm by thickness is made, and the thick walled steel tube that described column is greater than 3mm by thickness is made.
On described injection spray pipe, in the side near described valve body structure, be distributed with equally distributed a plurality of hole to form even spraying.
Described heating system and described cooling system are set to integral structure.
Due to the enforcement of technique scheme, the utility model compared with prior art tool has the following advantages:
(1) thermal fatigue tester of the present utility model, can carry out heat fatigue test to the valve body structure with flexible member.The valve that mechanical linkage kinematic train on thermal fatigue tester promotes on valve body structure carries out opening and closing action, heating system and cooling system cooperating, can form the state of cyclic operation that colds and heat succeed each other, accurately simulated automotive accelerate and shutdown process in the variation of the valve opening angle on temperature variation and valve body structure in exhaust system, thereby the heat fatigue permanance of removing testing valve body structure to approach the cold and hot and valve opening and closing circulation of actual condition.
(2) control system of thermal fatigue tester of the present utility model has adopted programmable, intelligent control system, input parameter on input and output control panel, and testing machine just can complete the valve body structure heat fatigue test with complex loops operating mode automatically.Meanwhile, be also furnished with warning circuit, if testing machine operation irregularity, can auto-breaking, and point out tester contact fault by warning.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model thermal fatigue tester;
Fig. 2 is the structural representation of the utility model thermal fatigue tester mid frame;
Fig. 3 is the structural representation of heating system, cooling system, clamp device in the utility model thermal fatigue tester;
Fig. 4 be in Fig. 3 A-A to cut-open view;
Fig. 5 is the structural representation of mechanical linkage kinematic train in the utility model thermal fatigue tester;
Fig. 6 is the structural representation of control system in the utility model thermal fatigue tester;
Fig. 7 is control system high-level schematic functional block diagram in the utility model thermal fatigue tester;
In figure: 1, frame; 11, bottom base plate; 12, column; 13, middle base plate; 14, coverboard; 15, top base plate; 16, installing port; 2, heating system; 21, internal insulation cover; 22, heating installing plate; 23, heated sealant seat; 24, external insulation cover; 25, heating wire; 26, heating inner liner; 27, insulation material; 28, quartz glass; 3, control system; 31, Hall element; 32, frequency converter; 33, thermopair; 34, industrial computer; 4, clamp device; 41, clamping location-plate; 42, clamping clamp; 5, cooling system; 51, injection spray pipe; 52, axle cooling package; 6, mechanical linkage kinematic train; 61, electric machine support; 62, motor; 63, driving shaft; 64, bearing block assembly; 65, pull bar; 66, flywheel; 67, adjust plate; 68, actuator.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in accompanying drawing 1 ~ 6, the thermal fatigue tester of bimodal sound suppressor valve body structure of the present utility model comprises frame 1, be arranged in frame 1 for to valve body structure rapidly heating heating system 2, be arranged in frame 1 clamp device 4 for fixed valve body structure, for mechanical linkage kinematic train 6, the cooling system 5 of the valve opening and closing of driver's valve body structure, control the control system 3 of whole thermal fatigue tester work.
As shown in Figure 2, the structural representation of the utility model thermal fatigue tester mid frame 1.Frame 1 comprises bottom base plate 11, middle base plate 13, connects a plurality of columns 12, top base plate 15, the polylith coverboard 14 between middle base plate 13 and top base plate 15 of bottom base plate 11 and middle base plate 13, and polylith coverboard 14, middle base plate 13, bottom base plate 11 surround a cavity jointly.The steel plate that wherein bottom base plate 11, middle base plate 13 are greater than 3mm by thickness is made, and the thick walled steel tube that column 12 is greater than 3mm by six roots of sensation thickness forms, be evenly distributed between bottom base plate 11, middle base plate 13, the bottom base plate 11 of being made by steel plate and in base plate 13 and the column 12 that formed by thick steel pipe increased weight and the rigidity of frame 1 base, reduced the vibrations that the work due to mechanical linkage kinematic train 6 produces.In this example, coverboard 14 is provided with 4, and 4 coverboards 14, top base plate 15 and middle base plates 13 surround a cavity jointly, be used for installing heating system 2 and cooling system 5, play on the one hand skeleton supporting role, by heating system 2 and external environment isolation, prevent from operator to damage on the other hand.
As shown in accompanying drawing 3 ~ 4, it is the structural representation of heating system 2, cooling system 5, clamp device 4 in the utility model thermal fatigue tester.Top base plate 15 offers installing port 16, heating system 2 is arranged in cavity and passes installing port 16, heating system 2 comprises the internal insulation cover 21 being arranged in cavity, be arranged on the heated sealant seat 23 of internal insulation cover 21 tops, be arranged on internal insulation cover 21 inner and and internal insulation cover 21 between form gapped heating inner liner 26 and be arranged on the heating wire 25 in heating inner liner 26, in gap, be filled with insulation material 27, between internal insulation cover 21 and heated sealant seat 23, be provided with for internal insulation cover 21 is installed, heated sealant seat 23, the heating installing plate 22 of heating inner liner 26, heating system 2 also comprises for preventing that heat is from the lost external insulation cover 24 in heating system 2 tops, on external insulation cover 24, be provided with for observing the quartz glass 28 of thermal fatigue test situation.
Clamp device 4 is arranged in heating system 2, and it comprises the clamping location-plate 41 being arranged on heated sealant seat 23, two sides that are arranged on clamping location-plate 41 and for the clamping clamp 42 of pinched valve body structure.Wherein, clamping location-plate 41 is for positioning valve structure, and clamping location-plate 41 is provided with tank 2 and water return pipeline simultaneously, and the unnecessary water of being convenient to injection spray pipe 51 ejections refluxes, and clamping location-plate 41 is demountable structure, can be used for different valve body structures; Clamping clamp 42 are demountable structure, can pass through plus-minus pad adjustment height, thereby be applicable to the different valve body structure of clamping.
As shown in Figure 5, be the structural representation of mechanical linkage kinematic train 6 in the utility model thermal fatigue tester.Mechanical linkage kinematic train 6 comprises the motor 62 on the bottom base plate 11 that is fixedly installed on frame 1, be connected with motor 62 and drive by motor 62 flywheel 66 rotating, one end is connected with flywheel 66 and drives by flywheel 66 pull bar 65 moving, by pull bar 65 drive move reciprocatingly and for the driven unit of the valve opening and closing on driver's valve body structure, be fixedly installed on the bearing block assembly 64 of top base plate 15, motor 62 is fixedly installed on bottom base plate 11 by electric machine support 61, driven unit comprises the driving shaft 63 being connected with the other end of pull bar 65 through bearing block assembly 64 and one end, one end is connected with the other end of driving shaft 63 and for promoting the actuator 68 of valve opening and closing.In this example, driving shaft 63 is crankshaft structure, and actuator 68 is hooked shape structure, and when driving shaft 63 to-and-fro movement, the other end of the actuator 68 of hook solid can promote valve opening and closing.
On flywheel 66, be provided with the adjustment plate 67 of one end for adjusting pull bar 65 eccentric throw on flywheel 66, flywheel 66 drives pull bar 65 to swing by adjusting plate 67, and pull bar 65 swing in the vertical direction drives driving shaft 63 to-and-fro movements, and then drive actuator 68 to promote valve opening and closing.When adjusting eccentric throw on flywheel 66 of one end that plate 67 changes pull bar 65 by adjustment, can change the distance that pull bar 65 swings in the vertical direction, then change the reciprocating angle of driving shaft 63, thereby change the angle that actuator 68 promotes valve openings.
As shown in Figure 6, be the structural representation of control system 3 in the utility model thermal fatigue tester.Control system 3 is programmable, intelligent control system, it comprises for the working temperature of feedback valve body structure so that the thermopair 33 of the state of cyclic operation of application valve body structural fatigue test, be connected for the frequency converter 32 that regulates motor 62 rotating speeds, be arranged in frame 1 and for calculating sensor 31, the industrial computer 34 of the number of times of valve opening and closing with motor 62, wherein, thermopair 33 is fixedly installed on coverboard 14, and through heated sealant seat 23, be positioned at valve body structure under, for measuring the temperature of valve body structure, frequency converter 32 is fixed on the end of motor 62, is mainly used in controlling the rotating speed of motor 62, thus the frequency that by-pass valve control opens and closes, sensor 31 adopts Hall element, and be fixedly installed on the position that coverboard 14 approaches pull bar 65, when pull bar 65 is when vertical direction swings, pull bar 65 can produce alternately variation with the distance of Hall element 31, thereby make Hall element 31 produce periodic mains ripple, periodic mains ripple is processed, can be obtained the frequency of valve opening and closing, industrial computer 34 is fixedly installed on pull bar 65 not on the coverboard 14 of homonymy, there is input and output control panel, circuit of motor speed regulation control based, cycle-counter circuit, temperature control circuit, cooling water circulation control circuit, warning circuit, during concrete enforcement, industrial computer 34 is provided with electronic control unit, A.C. contactor, water flow control valve door, the components and parts such as thyristor voltage regulator, on the cabinet wall of industrial computer 34, touch-screen is installed, play guard's valve, the components and parts such as alarm lamp, industrial computer 34 is for inputting test cycle parameter, show to test and carry out parameter, report to the police, gather Hall element 31 and thermopair 33 data, control motor 62 rotating speeds, control heating wire 25 heating powers and control water flow control valve door etc.Industrial computer 34 is control cores of whole testing machine, realizes robotization and the intellectuality of valve body structure thermal fatigue test.
As shown in Figure 7, be the high-level schematic functional block diagram of the utility model thermal fatigue tester control system 3.The circuit of the control system 3 of fatigue tester can be divided into upper strata control circuit and lower floor's executive circuit by function.Upper strata control circuit is light current circuit, and lower floor's executive circuit is forceful electric power circuit, between upper strata control circuit and lower floor's executive circuit, adopts photoelectricity isolated controlling, thereby eliminates the impact between light current circuit and forceful electric power circuit.
The core of upper strata control circuit is electronic control unit (ECU), mainly complete the reception of sensor signal, the large function of the output of the processing of signal and calculating, control signal three, and can carry out information interaction with touch-screen, acceptance test setup parameter and send current trystate information.
Lower floor's executive circuit is mainly comprised of A.C. contactor, frequency converter 32, thyristor voltage regulator and water flow control valve door.Exchange and become the control signal that tentaculum reception ECU sends, disconnect or connect the alternating current of each electrical appliance; Frequency converter 32 receives the control signal that ECU sends, and changes the rotating speed of motor 62; Thyristor voltage regulator receives the control signal that ECU sends, and changes the power of heating wire 25, thereby changes heating-up temperature; Water flow control valve door receives the control signal that ECU sends, and connects or blocks current and pass through, and controls the length of the time of injection spray pipe 51 sprayings, thereby changes the operating mode that valve body structure temperature cycles changes.
Below in conjunction with accompanying drawing 1 ~ 7, describe the principle of work of the utility model thermal fatigue tester in detail:
First determine the type of tested valve body structure, selected corresponding clamping location-plate 41 and clamping clamp 42.Tested valve body structure is installed on clamp device 4, then covers external insulation cover 24, manual adjustments is adjusted plate 67, and rotary flywheel 66 makes to test the maximum opening angle of valve and meets testing requirements.
Thermal fatigue tester is connected to AC power and water source, press the start button being positioned on industrial computer 34 and switch on to thermal fatigue tester.Touch-screen by industrial computer 34 is set test parameters, the main parameter of setting change temperature cycles pattern, valve opening and closing frequency and valve opening and closing number of times.Transformation temperature circulation pattern is mainly set work duration under each temperature case and the temperature objectives value under corresponding operating mode, and by certain input normal form input touch-screen.After parameter input, on touch-screen, confirm, and open thermal fatigue tester.Then on touch-screen, automatically show that valve body structure temperature, valve opening and closing frequency and valve accumulation instantly open and close the information such as number of times.
After opening torture test by touch-screen, the ECU in industrial computer 34 can send the action of signal controlling A.C. contactor, connects the AC power of motor 62 and heating wire 25.ECU sends signal controlling frequency converter 32 and makes the rotating speed rotation of motor 62 to set simultaneously, control thyristor voltage regulator and according to the temperature of setting and the difference of the actual valve temperature that thermopair 33 is measured instantly, adjust the heating power of heating wire 25, make valve body structure temperature increase.After motor 62 starts, flywheel driven 66 rotates, and by adjusting plate 67, drives pull bars 65 to swing, and then pull bar 65 drives driven unit reciprocally swinging, and promotes valve generation on-off action.In addition, the signal of ECU synchronous acquisition Hall element 31, for calculating valve opening and closing frequency and accumulation switching number of times; The signal of synchronous acquisition thermopair 33, for the closed-loop control of valve body structure temperature.The signal of handling is presented on touch-screen.
When valve body structure temperature reaches design temperature, the clock in ECU starts timing.When the work duration at this temperature reaches setting value, if the desired temperature of next working cycle is lower than temperature instantly, ECU can send signal controlling thyristor voltage regulator, heating wire 25 is quit work, also send signal controlling water flow control valve door opens simultaneously, make chilled water via injection spray pipe 51 ejections, reduce the temperature of valve body structure.When the temperature of valve body structure is down to the temperature value of setting, ECU controls water flow control valve door and closes, control thyristor voltage regulator heating wire 25 is restarted, and according to the temperature of the temperature value closed-loop control valve body structure of thermopair 33 feedbacks, until next design temperature changes, start.If the desired temperature of next working cycle is during higher than temperature instantly, ECU can send the power that signal controlling thyristor voltage regulator strengthens heating wire 25, allow temperature rise to rapidly setting value, then by the temperature of thermopair 33 closed-loop control valve body structures, until next design temperature changes, start.This testing machine, according to such mode of operation, is simulated the delivery temperature of circulation change under actual driving operating mode according to the cold and hot working cycle of setting, thereby is effectively tested out the thermal fatigue property of valve body.
During this temperature variation, motor 62 is Work Promote valve opening and closing always, and ECU gathers the potential change of Hall element 31 always simultaneously, carries out the cumulative of valve opening and closing number of times.When valve opening and closing number of times is accumulated to setting value, ECU sends signal automatic cut-off power and stops test, guarantees the accurate of test, also reduces the energy consumption of testing machine simultaneously.
At this testing machine duration of work, if occur extremely, as excess Temperature, motor 62 shut down or heating wire 25 damages and cannot heat up, control system 3 can judge according to Hall element 31 and thermopair 33 feedacks, then cut off the electricity supply, and give the alarm.
In sum, the utility model thermal fatigue tester compared to existing technology has following advantage:
(1) thermal fatigue tester of the present utility model can carry out heat fatigue test to the valve body structure of flexible member.Mechanical linkage kinematic train in thermal fatigue tester promotes valve body structure and carries out opening and closing action, heating system and cooling system cooperating, can form the state of cyclic operation that colds and heat succeed each other, the accurately variation of the valve opening angle on temperature variation and valve body structure in exhaust system in simulated automotive acceleration and deceleration and start-stop process, thereby the heat fatigue permanance of removing testing valve body structure to approach the cold and hot and valve opening and closing circulation of actual condition.
(2) in the mechanical linkage kinematic train of thermal fatigue tester of the present utility model, the eccentric throw of the one end by simple adjustment pull bar on flywheel, changes the to-and-fro movement angle of driving shaft, thereby changes the opening angle of valve; Clamping and positioning plate is demountable structure in addition, the various multi-form valve body structures of replaceable installation.This Liang Ge mechanism cooperatively interacts, and can effectively realize the heat fatigue test under the different opening angles of different valve body structures or same valve body.
(3) heating system of thermal fatigue tester of the present utility model and cooling system adopt integral structure form, can effectively reduce the volume of thermal fatigue tester.Heat-insulating heat-preserving material, heated sealant seat, internal insulation cover and external insulation cover combine use, can make valve body structure temperature increase rapidly, high energy reaches 500 ℃.Cooling system adopts the cooling valve body structure of injection spray pipe, and the use by injection spray pipe reduces rapidly the temperature of valve body structure, thereby forms cold cycling.
(4) control system of thermal fatigue tester of the present utility model has adopted programmable, intelligent control system, input parameter on control panel, and thermal fatigue tester just can complete the heat fatigue test of the valve body structure with complex loops operating mode automatically.Meanwhile, be also furnished with warning circuit, if testing machine operation irregularity, can auto-breaking, and point out tester contact fault by warning.
Above the utility model is described in detail; its object is to allow the personage who is familiar with this art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. the thermal fatigue tester of a bimodal sound suppressor valve body structure, comprise frame, be arranged in described frame for to the heating system of described valve body structure heating, be arranged in described frame clamp device for fixing described valve body structure, for driving the control system of the whole thermal fatigue tester work of mechanical linkage kinematic train, cooling system, control of the valve opening and closing of described valve body structure, it is characterized in that:
Described mechanical linkage kinematic train comprises the motor that is fixedly installed in described frame, be connected with described motor and by described motor drive flywheel, the one end of rotating to be connected with described flywheel and by described flywheel drive the pull bar of motion and by described pull bar drive, moved reciprocatingly and for promoting the driven unit of the valve opening and closing on described valve body structure;
Described cooling system comprises axle cooling package, the injection spray pipe for cooling described valve body structure with the circulation change of simulated automotive acceleration and deceleration process delivery temperature for cooling described driven unit;
Described control system comprise working temperature for feeding back described valve body structure controlling the thermopair of the state of cyclic operation of described valve body structure torture test, be connected for the frequency converter that regulates described motor speed with described motor, be arranged in described frame and for calculating sensor, the industrial computer of the number of times of described valve opening and closing, described industrial computer has input and output control panel, circuit of motor speed regulation control based, cycle-counter circuit, temperature control circuit, cooling water circulation control circuit, warning circuit.
2. thermal fatigue tester according to claim 1, it is characterized in that: described frame comprises bottom base plate, middle base plate, connects a plurality of columns of described bottom base plate and described middle base plate, top base plate, the polylith coverboard between described middle base plate and described top base plate, and described polylith coverboard, described middle base plate, described bottom base plate surround a cavity jointly.
3. thermal fatigue tester according to claim 2, it is characterized in that: described mechanical linkage kinematic train also comprises the bearing block assembly being fixedly installed on described top base plate, described driven unit comprises that driving shaft, one end of through described bearing block assembly and one end, being connected with the other end of described pull bar are connected with the other end of described driving shaft and for promoting the actuator of described valve opening and closing.
4. thermal fatigue tester according to claim 3, is characterized in that: described flywheel is provided with the adjustment plate of one end for adjusting described pull bar eccentric throw on described flywheel.
5. thermal fatigue tester according to claim 2, it is characterized in that: described top base plate offers installing port, described heating system is arranged in described cavity and passes described installing port, described heating system comprises the internal insulation cover being arranged in described cavity, be arranged on the heated sealant seat of described internal insulation cover top, be arranged on described internal insulation cover inner and and described internal insulation cover between form gapped heating inner liner, be arranged on the heating wire in described heating inner liner, in described gap, be filled with insulation material, between described internal insulation cover and described heated sealant seat, be provided with for described internal insulation cover is installed, described heated sealant seat, the heating installing plate of described heating inner liner.
6. fatigue tester according to claim 5, it is characterized in that: described heating system also comprises for preventing that heat, from the lost external insulation cover in described heating system top, is provided with for observing the quartz glass of thermal fatigue test situation on described external insulation cover.
7. thermal fatigue tester according to claim 5, it is characterized in that: described clamp device is arranged in described heating system, it comprises the clamping location-plate being arranged on described heated sealant seat, two sides that are arranged on described clamping location-plate and for clamping the clamping clamp of described valve body structure.
8. thermal fatigue tester according to claim 2, is characterized in that: the steel plate that described bottom base plate, described middle base plate are greater than 3mm by thickness is made, and the thick walled steel tube that described column is greater than 3mm by thickness is made.
9. thermal fatigue tester according to claim 1, is characterized in that: on described injection spray pipe, in the side near described valve body structure, be distributed with equally distributed a plurality of hole to form even spraying.
10. thermal fatigue tester according to claim 1, is characterized in that: described heating system and described cooling system are set to integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563915.4U CN203432797U (en) | 2013-09-12 | 2013-09-12 | Thermal fatigue testing machine for valve body structure of bimodal silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563915.4U CN203432797U (en) | 2013-09-12 | 2013-09-12 | Thermal fatigue testing machine for valve body structure of bimodal silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432797U true CN203432797U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320563915.4U Withdrawn - After Issue CN203432797U (en) | 2013-09-12 | 2013-09-12 | Thermal fatigue testing machine for valve body structure of bimodal silencer |
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| Country | Link |
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| CN (1) | CN203432797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471832A (en) * | 2013-09-12 | 2013-12-25 | 华环（苏州）汽车科技有限公司 | Heat fatigue testing machine of bimodal silencer valve body structure |
-
2013
- 2013-09-12 CN CN201320563915.4U patent/CN203432797U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471832A (en) * | 2013-09-12 | 2013-12-25 | 华环（苏州）汽车科技有限公司 | Heat fatigue testing machine of bimodal silencer valve body structure |
| CN103471832B (en) * | 2013-09-12 | 2015-10-21 | 华环（苏州）汽车科技有限公司 | The thermal fatigue tester of bimodal sound suppressor valve body structure |
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