CN103759938A - High temperature testing machine for gears - Google Patents
High temperature testing machine for gears Download PDFInfo
- Publication number
- CN103759938A CN103759938A CN201410012792.4A CN201410012792A CN103759938A CN 103759938 A CN103759938 A CN 103759938A CN 201410012792 A CN201410012792 A CN 201410012792A CN 103759938 A CN103759938 A CN 103759938A
- Authority
- CN
- China
- Prior art keywords
- temperature
- gear
- heating
- oil
- lubricating oil
- 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
Images
Abstract
A high temperature testing machine for gears comprises a gear transmission case used for testing the fatigue life of the gears, wherein the gears to be tested are installed in the gear transmission case, the gear transmission case is connected with a temperature control system, the temperature control system comprises a heating device and a control module of a temperature monitor device, the heating device is connected with the gear transmission case through a pipeline, the heating device conveys lubricating oil into the gear transmission case through the pipeline to heat and lubricate the gears to be tested in an oil bath mode so that the working condition of gears inside an aviation speed reducer can be simulated, and the lubricating oil is heated to reach the set temperature. The temperature monitor device is installed on the heating device to monitor the temperature of the lubricating oil in real time, temperature information is fed back to the control module, and then the heating temperature can be monitored and controlled. Long-time simulation testing under the high temperature can be carried out on the gears, the testing temperature is high, working time is long, the testing environment is more approximate to the actual working condition of the aviation gears, and testing results are more effective and credible.
Description
Technical field
The present invention relates to a kind of for simulating the testing equipment of Aeronautical Gears worst hot case, a kind of high temperature gear testing machine of accurately Control experiment temperature particularly.
Background technology
Aviation reducer gear is a kind of vital part being operated in complex environment.Temperature has directly or remote effect the multiple mechanics of gear and mechanical property, as the fatigue behaviour of material, red hardness, friction and wear behavior etc.Along with aircraft engine performance improves constantly, engine thrust-weight ratio constantly increases, and the working condition of aeromotor reducer gear is also more and more harsher, and therefore the highest 623K that reached of gear mating surface temperature, also improves the requirement of gear heat resistance thereupon.
Gear actual temperature is formed by body temperature and the instantaneous temperature stack of flashing.The factor that affects gear body temperature mainly contains: input heat of friction, convection transfer rate, environment temperature, input hot-fluid are along working flank distribution situation, friction factor etc.The instantaneous temperature of flashing of gear surface refers to gear in the running, the transient change temperature that surface produces.Meanwhile, Aeronautical Gears can produce amount of heat and form uneven temperature field in operation process, and its temperature field distribution situation has material impact to gear train transmission efficiency, dynamic property and load-bearing capacity etc.Engineering practice shows, it is particularly evident that above-mentioned situation shows in heavily loaded engaged gear.The thermal deformation that cause in heavy-duty gear Yin Gaowen and uneven temperature place will have a strong impact on its load-bearing capacity and serviceability, aggravate vibration and the noise of its generation, shorten its serviceable life.
Because existing gear testing machine design is not considered the above-mentioned influence factor to gear actual temperature wherein, thereby existing gear testing machine only can meet the examination of the low temperature gears such as gear of vehicle.If error is larger for examining the high temperature gears such as Aeronautical Gears, and the data obtained is difficult to revise.Therefore in aviation speed reduction unit, actual condition the most succinctly, method is placed in gear exactly with actual condition phase near-ambient and carries out running-in intuitively to examine gear.For realizing this goal, need in gear simulation test machine, create the experimental enviroment approaching as far as possible with true environment.
Existing FZG testing machine can simply be controlled temperature.Its principle is two pairs of gears that have speed ratio identical, and wherein a pair of is test gear, and another is to for accompanying examination gear.Accompany examination gear to be arranged in a gear case, its input shaft and motor straight connect in succession, and its output is connected with test gear case, on test gearbox output shaft, loading clutch is installed, and during test, from casing top jet, gear are applied to lubricating oil.In fuel tank, be designed with electric heater, in order to control initial oil temperature, also have refrigeratory, in order to realize oil temperature balance in test simultaneously.But the attainable heating-up temperature of FZG Gear Experimentation case heating arrangement is low, and temperature departure is larger, oil temperature can only be controlled to 90 (± 5) ℃.Therefore FZG gear testing machine test condition far can not reach the needs of simulation aviation speed reduction unit internal temperature, cannot simulate true environment in aviation speed reduction unit.
From type of heating, the heating arrangement of existing gear testing machine mostly is Resistant heating.But resistance wire in use exposes some defects that can not be ignored.One, resistance wire are short serviceable life, if blow, need integral replacing, operation inconvenience.If blowing in process of the test, resistance wire can cause test failure.Two, Resistant heating lack of homogeneity, far above other parts in fuel tank and easily higher than flash temperature, if chance resistance wire is exposed charged, may light lubricating oil near resistance wire lubricating oil temperature partly, causes security incident.Three, the burning of the lubricating oil of Resistant heating is insufficient, and carbon deposition rate is high.High carbon deposition rate not only can affect the parameters such as test temperature, also can affect the greasy property of lubricating oil, finally affects test effect.In addition, this type of heating also exists that temperature-responsive is slow, and the heat time is short, and the problems such as long worst hot case condition can not be provided.
The more important thing is, in aviation speed reduction unit, its working temperature of gear of different parts application also has difference.It is to guarantee that lubricating oil normally works that existing gear testing machine adopts the object of Resistant heating fuel tank, do not consider gear operation actual conditions, so gear testing machine can only detect single temperature range annular wheel operating mode, can not realize the temperature difference alienation test to different parts gear.
Existing gear testing machine is owing to can not effectively simulating the actual working conditions of aviation speed reduction unit annular wheel, and test gear operating mode and actual condition differ larger, Gu the error of this test figure is larger.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of gear testing machine that can Control experiment temperature, excessive to solve working condition and gear actual working conditions gap that existing gear testing machine provided, causes the large problem of data error of measurement.
To achieve these goals, the invention provides a kind of high temperature gear testing machine, comprise the gear for Gear Experimentation test, gear to be measured is arranged in described gear, wherein, described gear is connected with temperature control system, described temperature control system comprises heating arrangement and device for detecting temperature control module, described heating arrangement is connected with gear by pipeline, described heating arrangement carries out oil-bath type heating and lubricated with simulation aviation reducer gear operating mode to described gear to be measured by described Pipe transfer by the lubricating oil after heating to described gear, described device for detecting temperature is arranged on described heating arrangement described in Real-Time Monitoring the temperature of lubricating oil to control the heating-up temperature of described heating arrangement.
Above-mentioned gear testing machine, wherein, described heating arrangement comprises heating casing, fuel sucking pipe, oil pump and many group PTC heating plate groups, on described heating casing, be provided with oil filler, oil-out and oil return opening, described oil pump is arranged on described oil-out top, described fuel sucking pipe is arranged in described heating casing and through described oil-out and is connected with described oil pump, described oil pump is connected with described gear by described pipeline, described gear is connected with described oil return opening by pipeline, described many group PTC heating plate groups are arranged on respectively described heating cabinet wall, at the bottom of case and on case internal partition.
Above-mentioned gear testing machine, wherein, described temperature control system also comprises cooling device, described cooling device is connected with described heating arrangement by cooling line, cooling unit for controlling described cooling line flow of lubrication and cooling oil box refrigerating capacity is installed to control and to regulate lubricating oil temperature on described cooling line.
Above-mentioned gear testing machine, wherein, described device for detecting temperature comprises a plurality of fuel tank temperature sensors, and described a plurality of fuel tank temperature sensors are arranged in described heating casing, for heating temperature data in casing described in Real-time Collection, and correspond respectively to the setting of described many group PTC heating plate groups.
Above-mentioned gear testing machine, wherein, described device for detecting temperature also comprises gear case temperature sensor, described gear case temperature sensor is arranged on the top of described gear with the temperature data in gear described in Real-time Collection.
Above-mentioned gear testing machine, wherein, described temperature control system also comprises control module, described a plurality of fuel tank temperature sensor and described many group PTC heating plate groups are connected with described control module respectively, fuel tank temperature sensor PTC heating plate group described in corresponding a group respectively described in each, described fuel tank temperature sensor gathers respectively the temperature data of described PTC heating plate and is uploaded to described control module, described control module is controlled respectively the group heating of described many group PTC heating plates or disconnects according to described temperature data, accurately to control the temperature of lubricating oil.
Above-mentioned gear testing machine, wherein, described gear case temperature sensor is connected with described control module, described gear case temperature sensor gathers the gear temperature data of described gear and is uploaded to described control module, described control module is controlled respectively the group heating of described many group PTC heating plates or disconnects according to described temperature data and described gear temperature data, accurately to control the temperature of lubricating oil.
Above-mentioned gear testing machine, wherein, described gear case temperature sensor arranges a protection temperature control modules.Gear temperature data in gear is during higher than described protection temperature, described control module close whole described many group PTC heating plate groups and the cool cycles controlling cooling oil box refrigerating capacity and accelerate lubricating oil to reduce lubricating oil temperature.
Above-mentioned gear testing machine, wherein, described a plurality of fuel tank temperature sensor arranges respectively the temperature control upper limit and temperature control lower limit, when temperature data that described fuel tank temperature sensor records higher than described temperature control in limited time, described control module is closed corresponding described PTC heating plate group, when temperature data that described fuel tank temperature sensor records lower than described temperature control under in limited time, described control module is opened corresponding PTC heating plate group.
Technique effect of the present invention is:
1) the present invention adopts the mode of PTC heating, and ptc material is a kind of thermal resistance material, and itself has temperature-sensitive, noiseless, long service life, the fast feature of firing rate.The present invention adopts PTC type of heating.In test, if a certain PTC heating plate fault, other heating plate of this region can carry out temperature compensation.While safeguarding, only need to change the heating plate of fault, easy to operate.PTC type of heating also has a large advantage in addition, if meet PTC heating plate, can not get abundant heat radiation, and temperature arrives after Curie temperature, power can sharply decline, now the surface temperature of heating plate maintains its Curie temperature left and right, can not cause near the lubricating oil burning of heating plate, alleviates lubricating oil carbon distribution problem common while using Resistant heating, warranty test machine can normally move for a long time, and therefore gear testing machine safety coefficient of the present invention is high, easy to maintenance.Can heat for a long time gear, test temperature is high, and test period is long, more approaches the real work environment of Aeronautical Gears, and test findings is more credible;
2) PTC heating plate controllable temperature is interval large, can carry out to the gear of different parts the test of differentiation.In actual applications, the working temperature of different parts gear is not identical, therefore for gear, requires not identical yet.Middle gear testing machine of the present invention can be by temperature control system by gear Temperature Setting arbitrary temp (± 1 ℃) under PTC heating plate Curie temperature, thereby realizes the simulation that gear is worked under real work environment;
3) due to the present invention, taked the method for PTC antenna array control, ptc material itself has stable performance, heats up rapidly, is subject to mains fluctuations to affect the characteristics such as little, and its well heater of making, has the remarkable advantages such as thermal resistance is little, heat exchange efficiency is high.So the method response of PTC array heating is fast, precision is high, can form online temperature closed loop controls, therefore temperature-controlling system temperature-controlled precision of the present invention is high, temperature control precision and homogeneity have been increased substantially, oil temperature distributing homogeneity improves more than 30% than existing equipment, and can reach ± 1 ℃ of left and right of the control accuracy of temperature, can realize the quantitative control of lubricating oil temperature;
4) the present invention can test by testability in early stage, relation between gear temperature and lubricating oil temperature is measured, drawn corresponding experimental formula and input after computing machine, by computer, control, the automatic control of realization to gear surface temperature, thus increase work efficiency.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the gear testing machine structural representation of one embodiment of the invention;
Fig. 2 is the gear testing machine structural representation of another embodiment of the present invention;
Fig. 3 is that the temperature of one embodiment of the invention is controlled schematic diagram;
Fig. 4 is that in the heating casing of one embodiment of the invention, PTC heating plate group arranges schematic diagram (end face);
Fig. 5 is that in the heating casing of one embodiment of the invention, PTC heating plate group arranges schematic diagram (side);
Fig. 6 is that in the heating casing of another embodiment of the present invention, PTC heating plate group arranges schematic diagram (side).
Wherein, Reference numeral
1 gear
2 gears to be measured
3 temperature control systems
31 heating arrangements
311 heating casings
312 fuel sucking pipes
313 heating oil pumps
314 PTC heating plate groups
315 oil fillers
316 oil-outs
317 oil return openings
32 device for detecting temperature
321 fuel tank temperature sensors
322 gear case temperature sensors
33 pipelines
34 cooling devices
341 cooling lines
35 control modules
A, B, C, D heating plate group pattern
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
Referring to Fig. 1, the gear testing machine structural representation that Fig. 1 is one embodiment of the invention.Gear testing machine of the present invention, comprise the gear 1 for Gear Experimentation test, gear 2 to be measured is arranged in described gear 1, described gear 1 is connected with temperature control system 3, described temperature control system 3 comprises heating arrangement 31 and device for detecting temperature 32, described heating arrangement 31 is connected with gear 1 by pipeline 33, described heating arrangement 31 can transfer to the lubricating oil after heating that described gear 1 is interior carries out oil-bath type heating and the lubricated working environment with simulation aviation speed reduction unit annular wheel to described gear 2 to be measured by described pipeline 33, described device for detecting temperature 32 is arranged on described heating arrangement 31 described in Real-Time Monitoring the temperature of lubricating oil to control the heating-up temperature of described heating arrangement 31.Said temperature is preferably 260 ℃-280 ℃, 1 ℃ of temperature error scope.
In the present embodiment, described heating arrangement 31 comprises heating casing 311, fuel sucking pipe 312, heating oil pump 313 and many group PTC heating plate groups 314, described PTC heating plate group 314 comprises respectively a plurality of PTC heating plates, on described heating casing 311, be provided with oil filler 315, oil-out 316 and oil return opening 317, described heating oil pump 313 is arranged on described oil-out 316 tops, described fuel sucking pipe 312 is arranged in described heating casing 311 and through described oil-out 316 and is connected with described heating oil pump 313, described heating oil pump 313 is connected with described gear 1 by described pipeline 33, described gear 1 is connected with described oil return opening 317 by pipeline 33, described many group PTC heating plate groups 314 are arranged on respectively on described heating casing 311 inwalls.
Referring to Fig. 2, the gear testing machine structural representation that Fig. 2 is another embodiment of the present invention.In another embodiment of the present invention, described temperature control system 3 also can comprise cooling device 34, described cooling device 34 is connected with described heating arrangement 31 by cooling line 341, on described cooling line 341, be provided with and control the flow of lubricating oil and the cooling device of refrigerating capacity in described cooling line 341, in order to the temperature of regulating and controlling lubricating oil.During test, if lubricating oil temperature when setting the temperature control upper limit (T1) and setting between temperature control lower limit (To), closed portion PTC heating plate group 314, stablizes oil temperature; If oil temperature surpasses, the temperature control upper limit (T1) is set, again closes the PTC heating plate group 314 of some, further reduce and add heat, object is to make oil temperature slowly be lowered into design temperature scope; If lubricating oil temperature surpasses, set 20 ℃ of the temperature control upper limits or less than 10 ℃, (choose numerical value junior in both with the difference of lubricating oil flash point temperature, guarantee experimental safe) time, close all PTC heating plate groups 314 and open cooling device 34, and regulating cooling oil box refrigerating capacity and flow of lubrication in cooling device 34 according to the actual temperature of lubricating oil.
Referring to Fig. 3, the temperature that Fig. 3 is one embodiment of the invention is controlled schematic diagram.In the present embodiment, described device for detecting temperature 32 comprises a plurality of fuel tank temperature sensors 321, described a plurality of fuel tank temperature sensor 321 respectively with described many group PTC heating plate groups 314 corresponding being arranged in described heating casing 311, to heat the temperature data in casing 311 described in Real-time Collection.In another embodiment, described device for detecting temperature 32 also can comprise gear case temperature sensor 322, and described gear case temperature sensor 322 is arranged on the top of described gear 1 with the temperature data in gear described in Real-time Collection 1.Because considering that lubricating oil is between oil circuit transmission period, temperature has certain decline, therefore when setting heating-up temperature, need on the flank of tooth requires the basis of temperature, add corresponding temperature compensation value, to improve test accuracy rate.Working gear environment temperature using test gear case jet temperature as test simulation, therefore, the difference that definition temperature compensation value is the jet oil temperature of the heating interior average oil temperature of casing 311 and gear 1.So:
Heating casing is set heating-up temperature=gear jet oil temperature+temperature compensation value
Described temperature control system 3 also comprises control module 35, described a plurality of fuel tank temperature sensor 321, described many group PTC heating plate groups 314 and described cooling unit 34 are all connected with described control module 35, described in each, the equal correspondence of PTC heating plate of many group PTC heating plate groups 314 arranges described fuel tank temperature sensor 321, described fuel tank temperature sensor 321 gathers respectively the temperature data of described PTC heating plate and is uploaded to described control module 35, described control module 35 is controlled respectively described cooling oil box refrigerating capacity according to described temperature data and/or is controlled described many group PTC heating plate group 314 heating or disconnect, accurately to control the temperature of lubricating oil.Wherein, described gear case temperature sensor 322 is connected with described control module 35, described gear case temperature sensor 322 gathers the gear temperature data of described gear 1 and is uploaded to described control module 35, described control module 35 is controlled respectively described cooling oil box refrigerating capacity and/or controls described many group PTC heating plate group 314 heating or disconnect according to described temperature data and described gear temperature data, accurately to control the temperature of lubricating oil.Wherein, described gear case temperature sensor 322 arranges a protection temperature control modules; gear temperature data in gear 1 is during higher than described protection temperature, and many group PTC heating plate groups 314 and/or the cool cycles controlling described cooling oil box refrigerating capacity and accelerate lubricating oil are to reduce lubricating oil temperature described in described control module 35 closed portions.
Described a plurality of fuel tank temperature sensor 321 arranges respectively the temperature control upper limit and temperature control lower limit, when temperature data that described fuel tank temperature sensor 321 records higher than described temperature control in limited time, described control module 35 is closed corresponding described PTC heating plate group 314 and/or is controlled the cool cycles that described cooling oil box accelerates lubricating oil, when temperature data that described fuel tank temperature sensor 321 records lower than described temperature control under in limited time, described control module 35 is opened corresponding PTC heating plate group 314.
During work, by early stage testability test, the relation between the temperature of gear, lubricating oil temperature is measured, draw corresponding formula, in input computing machine, realize the automatic control to gear surface temperature.Directly over heating casing 311, open an oil filler 315, connect pipeline road, by heating oil pump 313, the lubricating oil after heating is pumped in gear 1, gear 2 to be measured is carried out to oil-bath type heating and lubricated.
Lubricating oil is derived from heating casing 311 by heating oil pump 313, is connected in an oil cooling unit, and the model of this oil cooling unit is preferably MCO-385-01K, then leads back in heating casing 311 by an oil pump.Oil cooling unit cooling oil pump used is capable of regulating power, thereby can control the flow of oil in cooling device 34 and the temperature that refrigerating capacity realizes control lubricating oil.
Outer apply oil is stored in an external fuel tank, by heating oil pump 313, carries out oil circulation.Lubricating oil, by being located at many places PTC heating plate group 314 arrays of heating casing 311 inside surfaces, heats the interior lubricating oil of heating casing 311.Its PTC heating plate group 314 arrays are the highest can be heated to 280 ℃ by the lubricating oil temperature in heating casing 311.
In one embodiment, each PTC array can correspondence arrange a control module, then each control module is analyzed the data transmission gathering to control module 35, gear testing machine control program is analyzed, control module 35 is adjusted PTC heating plate group according to analysis result and is added heat, thereby realize, the temperature of lubricating oil is controlled in a smaller accuracy rating.
Its device for detecting temperature 32 is arranged in heating casing 311, and by being distributed in, heating casing 311 multiple spot is everywhere popped one's head in and the fuel tank temperature sensor 321 on gear 2 tops, carries out signals collecting.Signal carries out closed loop Based Intelligent Control to device for detecting temperature 32, heating arrangement 31 and cooling device 34 after machine analyzing and processing as calculated, forms online temperature closed loop and controls.Before test, a protection temperature control modules is set for the gear case temperature sensor 322 of gear 1; the temperature that gear case temperature sensor 322 in gear 1 monitors gear 2 to be measured is during higher than its protection temperature; control module 35 is controlled cooling oil box and is strengthened refrigerating capacity; thereby accelerate the cool cycles of lubricating oil, reduce lubricating oil temperature.In the heating inner many places of casing 311, fuel tank temperature sensor 321 is set, for each fuel tank temperature sensor 321 arranges the temperature control upper limit and temperature control lower limit, when lubricating oil temperature that fuel tank temperature sensor 321 records higher than temperature control in limited time, control module 35 is closed corresponding PTC heating plate group 314 arrays, the lubricating oil temperature recording when fuel tank temperature sensor 321 is lower than temperature control lower limit, and control module 35 is opened corresponding PTC heating electrodes.
During test, open gear 1, test gear 2 to be measured is arranged on gearing shaft with accompanying examination gear.Open heating arrangement 31, the lubricating oil in heating casing 311 is heated, after the interior lubricating oil temperature of casing 311 to be heated is stable, open cooling device 34, the temperature of lubricating oil is regulated.When lubricating oil temperature is stabilized within the scope of temperature control; start Gear Experimentation; and gear temperature is monitored; the temperature that the gear case temperature sensor 322 of control module in gear 1 monitors gear 2 to be measured is during higher than protection temperature; gear case temperature sensor 322 sends signal; control module 35 improves cooling oil box refrigerating capacity and accelerates the cool cycles of lubricating oil, reduces lubricating oil temperature.
Describe the test process of a gear 2 to be measured below in detail:
In the present embodiment, gear 2 to be measured is an involute spur gear, and its number of teeth is 29, and normal direction modulus is 3.63, and helix angle is 6o2 ' 51 〞, and the hand of spiral is left-handed.This gear lubricating oil used is the synthetic aerooil in Great Wall 4010, and the flash temperature of this lubricating oil is 264 ℃.The working gear temperature of test is 230 ℃ of left and right.Heating casing 311 bed-plate dimensions are 400mm*300mm; PTC heating plate is of a size of 100mm*60mm.
Referring to Fig. 4-6, Fig. 4 is that in the heating casing of one embodiment of the invention, PTC heating plate group arranges schematic diagram (end face), Fig. 5 is that in the heating casing of one embodiment of the invention, PTC heating plate group arranges schematic diagram (side), and in the heating casing that Fig. 6 is another embodiment of the present invention, PTC heating plate group arranges schematic diagram (side).In Fig. 4, be the arrangement mode of PTC heating plate, heating casing 311 is divided into A, B, C, tetra-arrays of D, each array is provided with corresponding fuel tank temperature sensor 321 and controls by control module 35.
In the first array A, PTC heating plate temperature regulation mechanism is as follows:
When the required heat that adds is for can add 100% of heat, open all PTC heating plates;
When the required heat that adds is for can add 50% of heat, interval opens corresponding PTC heating plate;
When the required heat that adds is for can add 30% of heat, open 5 PTC heating plates of bottom;
When the heat that adds of required minimizing is 30%, close 5 PTC heating plates of bottom;
When the heat that adds of required minimizing is 50%, interval closes corresponding PTC heating plate;
When the heat that adds of required minimizing is 100%, close all PTC heating plates.
In the second array B, PTC heating plate temperature regulation mechanism is as follows:
When the required heat that adds is for can add 100% of heat, open all PTC heating plates;
When the required heat that adds is for can add 50% of heat, interval opens corresponding PTC heating plate;
When the required heat that adds is for can add 30% of heat, open 2 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 30%, close 2 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 50%, interval closes corresponding PTC heating plate;
When the heat that adds of required minimizing is 100%, close all PTC heating plates.
In the 3rd array C, PTC heating plate temperature regulation mechanism is as follows:
When the required heat that adds is for can add 100% of heat, open all PTC heating plates;
When the required heat that adds is for can add 50% of heat, interval opens corresponding PTC heating plate;
When the required heat that adds is for can add 30% of heat, open 2 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 30%, close 2 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 50%, interval closes corresponding PTC heating plate;
When the heat that adds of required minimizing is 100%, close all PTC heating plates.
In the 4th array D, PTC heating plate temperature regulation mechanism is as follows:
When the required heat that adds is for can add 100% of heat, open all PTC heating plates;
When the required heat that adds is for can add 50% of heat, interval opens corresponding PTC heating plate;
When the required heat that adds is for can add 30% of heat, open 3 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 30%, close 3 non-conterminous PTC heating plates;
When the heat that adds of required minimizing is 50%, interval closes corresponding PTC heating plate;
When the heat that adds of required minimizing is 100%, close all PTC heating plates.
Visible, the present invention can be sooner, the temperature of Control experiment case more sensitively and accurately.
Wherein, PTC arrangement mode can be changed according to its size difference.
Wherein, concrete operating process is:
1) open computing machine, by control module 35, for Lubricating oil tank, set the heated for controlling temperature upper limit (T1) and temperature control lower limit (To), in the present embodiment, for example the temperature control upper limit is preferably 235 ℃; Under temperature control, be limited to 225 ℃;
2) by control module 35, send heating instruction to heating plate array, open heating plate the lubricating oil in heating casing 311 is heated;
3) by control module 35, open gear case temperature sensor 322, gear case temperature sensor 322 is back to control module 35 by its measured flank of tooth temperature information;
4) by control module 35, analyzed and judge the signal that gear case temperature sensor 322 returns, the temperature obtaining according to actual measurement and the gap size between setting value are with reference to the quantity of enabling of heating plate in abovementioned steps adjusting heating plate array.If lubricating oil temperature surpass to be set 20 ℃ of the temperature control upper limits or during less than 10 ℃ (choose numerical value junior in both, guarantee experimental safe), close all heating plates with the difference of lubricating oil flash point temperature.Meanwhile, open cooling device 34 and set cooling oil box refrigerating capacity in cooling system according to the actual temperature of lubricating oil;
5) if recording oil temperature has been down within the scope of the temperature bound of setting, close cooling device 34, reopen corresponding heating plate equilibrium temperature;
6) if recording oil temperature prescribes a time limit lower than setting under temperature control, according to actual measurement temperature and the temperature difference size of setting temperature control lower limit temperature, open appropriate heating plate.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (9)
1. a high temperature gear testing machine, comprise the gear for Gear Experimentation test, gear to be measured is arranged in described gear, it is characterized in that, described gear is connected with temperature control system, described temperature control system comprises heating arrangement and device for detecting temperature, described heating arrangement is connected with gear by pipeline, described heating arrangement carries out oil-bath type heating and lubricated operating mode with simulation aviation speed reduction unit annular wheel to described gear to be measured by described Pipe transfer by the lubricating oil after heating to described gear, described device for detecting temperature is arranged on described heating arrangement described in Real-Time Monitoring the temperature of lubricating oil to control the heating-up temperature of described heating arrangement.
2. gear testing machine according to claim 1, it is characterized in that, described heating arrangement comprises heating casing, fuel sucking pipe, heating oil pump and many group PTC heating plate groups, described PTC heating plate group comprises respectively a plurality of PTC heating plates, on described heating casing, be provided with oil filler, oil-out and oil return opening, described heating oil pump is arranged on described oil-out top, described fuel sucking pipe is arranged in described heating casing and through described oil-out and is connected with described heating oil pump, described heating oil pump is connected with described gear by described pipeline, described gear is connected with described oil return opening by pipeline, described many group PTC heating plate groups are arranged on respectively described heating cabinet wall, at the bottom of case and on case internal partition.
3. gear testing machine according to claim 1 and 2, it is characterized in that, described temperature control system also comprises cooling device, described cooling device is connected with described heating arrangement by cooling line, is provided with for controlling the flow of lubrication of described cooling line and the cooling unit of cooling oil box refrigerating capacity with the temperature of regulating and controlling lubricating oil on described cooling line.
4. gear testing machine according to claim 2, it is characterized in that, described device for detecting temperature comprises a plurality of fuel tank temperature sensors, and described a plurality of fuel tank temperature sensors correspond respectively to described many group PTC heating plate groups and are arranged in described heating casing to heat the temperature data in casing described in Real-time Collection.
5. gear testing machine according to claim 4, it is characterized in that, described device for detecting temperature also comprises gear case temperature sensor, and described gear case temperature sensor is arranged on the top of described gear with the temperature data in gear described in Real-time Collection.
6. gear testing machine according to claim 5, it is characterized in that, described temperature control system also comprises control module, described a plurality of fuel tank temperature sensor, described many group PTC heating plate groups and described cooler group are connected with described control module respectively, the PTC heating plate of the PTC of group more than described in each heating plate groups respectively correspondence arranges described fuel tank temperature sensor, described fuel tank temperature sensor gathers respectively the temperature data of described PTC heating plate and is uploaded to described control module, described control module is controlled respectively described cooling oil box refrigerating capacity according to described temperature data and/or is controlled the group heating of described many group PTC heating plates or disconnect, accurately to control the temperature of lubricating oil.
7. gear testing machine according to claim 6, it is characterized in that, described gear case temperature sensor is connected with described control module, described gear case temperature sensor gathers the gear temperature data of described gear and is uploaded to described control module, described control module is controlled respectively described cooling oil box refrigerating capacity and/or controls the group heating of described many group PTC heating plates or disconnect according to described temperature data and described gear temperature data, accurately to control the temperature of lubricating oil.
8. gear testing machine according to claim 7; it is characterized in that; described gear case temperature sensor arranges a protection temperature control modules; gear temperature data in gear is during higher than described protection temperature, described in described control module closed portion many group PTC heating plate groups and/or control described cooling oil box refrigerating capacity and described flow of lubrication to reduce lubricating oil temperature.
9. gear testing machine according to claim 8, it is characterized in that, described a plurality of fuel tank temperature sensor arranges respectively a temperature control upper limit and a temperature control lower limit, when temperature data that described fuel tank temperature sensor records higher than described temperature control in limited time, described control module close corresponding described PTC heating plate group and/or control described cooling oil box refrigerating capacity and described flow of lubrication to reduce lubricating oil temperature, when temperature data that described fuel tank temperature sensor records lower than described temperature control under in limited time, described control module is opened corresponding PTC heating plate group to improve lubricating oil temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012792.4A CN103759938B (en) | 2014-01-10 | 2014-01-10 | High temperature testing machine for gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012792.4A CN103759938B (en) | 2014-01-10 | 2014-01-10 | High temperature testing machine for gears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103759938A true CN103759938A (en) | 2014-04-30 |
| CN103759938B CN103759938B (en) | 2015-02-25 |
Family
ID=50527213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410012792.4A Expired - Fee Related CN103759938B (en) | 2014-01-10 | 2014-01-10 | High temperature testing machine for gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103759938B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502121A (en) * | 2014-12-26 | 2015-04-08 | 重庆长安汽车股份有限公司 | Performance testing device for power coupling system |
| CN106970105A (en) * | 2017-04-01 | 2017-07-21 | 西安交通大学 | A kind of variable structure heat conductivility test platform of pattern of heat sources and its method of testing |
| CN107179789A (en) * | 2017-06-26 | 2017-09-19 | 河北百强医用设备制造有限公司 | A kind of heating control apparatus and its method for heating and controlling of uniform temperature gradient |
| CN109115489A (en) * | 2018-08-02 | 2019-01-01 | 清华大学 | gear fatigue test device water cooling system |
| CN109445494A (en) * | 2018-10-10 | 2019-03-08 | 珠海格力电器股份有限公司 | A kind of enthalpy difference laboratory dry bulb operating condition autocontrol method |
| CN109470476A (en) * | 2019-01-14 | 2019-03-15 | 扬州大学 | A kind of torsional fatigue test devices and methods therefor of vibration-reduction gear |
| CN109668727A (en) * | 2019-01-14 | 2019-04-23 | 扬州大学 | A kind of fatigue experimental device and its method of automobile engine vibration-reduction gear |
| CN110186671A (en) * | 2019-05-17 | 2019-08-30 | 西北工业大学 | A kind of heat transfer of gear and thermometric testing stand |
| CN112178160A (en) * | 2020-08-21 | 2021-01-05 | 河北工业大学 | Device for measuring influence of lubricating mode and lubricating oil on power of transmission gear |
| CN112557025A (en) * | 2020-12-07 | 2021-03-26 | 上海交通大学 | Planetary gear test bench for simulating multi-working-condition environment and working method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328537A1 (en) * | 1993-08-25 | 1995-03-02 | Inst Maschinenelemente Uni Stu | Gearbox (transmission) test bench |
| CN101886978A (en) * | 2010-07-07 | 2010-11-17 | 四川大学 | Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system |
| CN201637570U (en) * | 2010-04-02 | 2010-11-17 | 广州市花都全球自动变速箱有限公司 | Self-changing gearbox assembly test machine with constant-temperature device |
| CN201731992U (en) * | 2010-08-03 | 2011-02-02 | 无锡威锐科智能测控技术有限公司 | Dedicated hydraulic oil tank for testing performance of CVT valve body |
| CN102042904A (en) * | 2010-11-18 | 2011-05-04 | 芜湖聚达汽车零部件有限公司 | High-temperature test system and method of clutch slave cylinder |
-
2014
- 2014-01-10 CN CN201410012792.4A patent/CN103759938B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328537A1 (en) * | 1993-08-25 | 1995-03-02 | Inst Maschinenelemente Uni Stu | Gearbox (transmission) test bench |
| CN201637570U (en) * | 2010-04-02 | 2010-11-17 | 广州市花都全球自动变速箱有限公司 | Self-changing gearbox assembly test machine with constant-temperature device |
| CN101886978A (en) * | 2010-07-07 | 2010-11-17 | 四川大学 | Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system |
| CN201731992U (en) * | 2010-08-03 | 2011-02-02 | 无锡威锐科智能测控技术有限公司 | Dedicated hydraulic oil tank for testing performance of CVT valve body |
| CN102042904A (en) * | 2010-11-18 | 2011-05-04 | 芜湖聚达汽车零部件有限公司 | High-temperature test system and method of clutch slave cylinder |
Non-Patent Citations (4)
| Title |
|---|
| 夏顺明等: "FZG齿轮试验机的使用", 《润滑与密封》 * |
| 席军等: "PTC热敏电阻的开发应用现状", 《塑料》 * |
| 李运泽等: "应用PTC电加热器的卫星局部温度控制系统仿真", 《系统仿真学报》 * |
| 邵桂祥等: "PTC产品在不同领域中的应用", 《家电科技》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502121A (en) * | 2014-12-26 | 2015-04-08 | 重庆长安汽车股份有限公司 | Performance testing device for power coupling system |
| CN104502121B (en) * | 2014-12-26 | 2018-04-27 | 重庆长安汽车股份有限公司 | Dynamic coupling system performance test apparatus |
| CN106970105A (en) * | 2017-04-01 | 2017-07-21 | 西安交通大学 | A kind of variable structure heat conductivility test platform of pattern of heat sources and its method of testing |
| CN107179789A (en) * | 2017-06-26 | 2017-09-19 | 河北百强医用设备制造有限公司 | A kind of heating control apparatus and its method for heating and controlling of uniform temperature gradient |
| CN109115489A (en) * | 2018-08-02 | 2019-01-01 | 清华大学 | gear fatigue test device water cooling system |
| CN109445494A (en) * | 2018-10-10 | 2019-03-08 | 珠海格力电器股份有限公司 | A kind of enthalpy difference laboratory dry bulb operating condition autocontrol method |
| CN109470476A (en) * | 2019-01-14 | 2019-03-15 | 扬州大学 | A kind of torsional fatigue test devices and methods therefor of vibration-reduction gear |
| CN109668727A (en) * | 2019-01-14 | 2019-04-23 | 扬州大学 | A kind of fatigue experimental device and its method of automobile engine vibration-reduction gear |
| CN109470476B (en) * | 2019-01-14 | 2023-06-27 | 扬州大学 | Torsional fatigue test device and method for vibration reduction gear |
| CN109668727B (en) * | 2019-01-14 | 2023-07-18 | 扬州大学 | Fatigue test device and method for vibration reduction gear of automobile engine |
| CN110186671A (en) * | 2019-05-17 | 2019-08-30 | 西北工业大学 | A kind of heat transfer of gear and thermometric testing stand |
| CN112178160A (en) * | 2020-08-21 | 2021-01-05 | 河北工业大学 | Device for measuring influence of lubricating mode and lubricating oil on power of transmission gear |
| CN112557025A (en) * | 2020-12-07 | 2021-03-26 | 上海交通大学 | Planetary gear test bench for simulating multi-working-condition environment and working method |
| CN112557025B (en) * | 2020-12-07 | 2022-09-13 | 上海交通大学 | Planetary gear test bench for simulating multi-working-condition environment and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103759938B (en) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103759938B (en) | High temperature testing machine for gears | |
| Li et al. | Load sharing analysis and reliability prediction for planetary gear train of helicopter | |
| Sequeira et al. | Analysis of the efficiency of wind turbine gearboxes using the temperature variable | |
| Wu et al. | Jet cooling for rolling bearings: Flow visualization and temperature distribution | |
| CN201828400U (en) | Electromagnetic valve and valve body performance detection device for automatic transmission | |
| CN101738231B (en) | Gear-box lubricating oil allotting simulation test system and test method | |
| Dai et al. | Determination of an optimal oil jet nozzle layout for helical gear lubrication: Mathematical modeling, numerical simulation, and experimental validation | |
| CN103062380A (en) | Method and arrangement for controlling the lubrication of a gear system | |
| CN103674563B (en) | A kind of integration test method for car load Energy Flow Analysis | |
| Simon | Optimal tooth modifications in face-hobbed spiral bevel gears to reduce the influence of misalignments on elastohydrodynamic lubrication | |
| CN102507193A (en) | Power compartment simulation system | |
| CN201788411U (en) | Hydraulic test system of fuel controller | |
| CN106198048A (en) | Cooling system of vehicle cold collateral resistance simulation test experiment platform and method thereof | |
| CN107939957A (en) | The cooling flow compensation method of wet-type double-clutch automatic speed-change device | |
| Chen et al. | Simulation and experiment of carburized gear scuffing under oil jet lubrication | |
| CN204627754U (en) | Aero-Engine Lubrication System | |
| CN106678213B (en) | Temperature method of real-time and device for wet dual clutch transmission | |
| CN208310964U (en) | A kind of gearbox lubrication equipment testing device | |
| CN104500381B (en) | Lubricating oil pump performance testing device | |
| CN201583297U (en) | Gear-box lubricating oil distribution simulating testing system | |
| CN203963464U (en) | Circulating oil system for fiber web machine | |
| CN107816430B (en) | A kind of low-temperature test system of automobile fuel pump | |
| CN206889647U (en) | A kind of wind turbine generator system gear box lubricating system | |
| CN202255910U (en) | Warmer box type test device | |
| CN204405325U (en) | AT wheel box complete machine static gearshift assembly durability test apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20170110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |