CN103941107A - Torque loading system for electromagnetic radiation test of motor - Google Patents
Torque loading system for electromagnetic radiation test of motor Download PDFInfo
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- CN103941107A CN103941107A CN201410186583.1A CN201410186583A CN103941107A CN 103941107 A CN103941107 A CN 103941107A CN 201410186583 A CN201410186583 A CN 201410186583A CN 103941107 A CN103941107 A CN 103941107A
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Abstract
The invention provides a torque loading system for an electromagnetic radiation test of a motor. The torque loading system comprises a first loading device mounted on one output shaft of the motor and an oil source connected to the first loading device; the first loading device comprises a loading execution mechanism, a torque test system and a hydraulic control module. The hydraulic control module comprises a two-way gear pump mechanically connected to the output shaft and a hydraulic path forming a two-way loop between the two-way gear pump and the oil source; the two-way gear pump is arranged to rotate in the same direction with the one output shaft and output a torque load for loading on the one output shaft simultaneously. The hydraulic control module is used for controlling the hydraulic path so as to form a first or second hydraulic loop enabling the loading of the two-way gear pump to the output shaft when the two-way gear pump rotates in a first or second direction along with the motor. The torque loading system further comprises a second loading device which is connected to the other output shaft of the motor and the same as the first loading device.
Description
Technical field
The present invention relates to the torque loading system for the electromagnetic radiation test of motor, the torque loading system of the electromagnetic radiation test of the motor of exporting in particular for twin shaft.This motor relates in particular to two-way brshless DC motor.
Background technology
The overall process of aircraft development generally comprises the double teachers such as pre-development, engineering development, detailed design, trial-production comprehensively, Airworthiness Certification.After Airworthiness Certification, mean that the safety Design of aircraft is approved, also just obtained " birth approval certificate ".Take after this card, aircraft just can enter the substantial phase of batch production.Aircraft, before formally coming into operation, also will carry out Airworthiness Certification.
Motor (claiming again " motor ") refers to a kind of energy source device of realizing electric energy conversion or transmit according to the law of electromagnetic induction.Its Main Function is to produce driving torque, as the power source of electrical equipment or various machineries.The conventional motor of aircraft high-lift system drives flap slat, for aircraft provides the lift or the resistance that need.This drive motor is generally double output shaft, two-way brshless DC motor, drives flap slat stretch out or regain.
The electromagnetic radiation meeting that motor produces exerts an influence to the flight of aircraft.So, according to above-mentioned airworthiness regulation requirement, airborne equipment should carry out strict equipment qualification test before dispatching from the factory, comprising electromagnetic radiation testing experiment, test method and electromagnetic radiation limit value are carried out with reference to RTAC DO-160 (airborne equipment environmental baseline and test routine DO-160) standard.
For can maximum electromagnetic radiation value that verify flap slat drive motor meet the demands, need carry out the electromagnetic radiation test under maximum control loads operating mode to drive motor, under testing laboratory's environment, adopt specific charger to load motor, and General Requirements charger can provide the load of two-way stable, and charger itself is without any electromagnetic radiation.
It is mainly to utilize servomotor to load drive motor that motor before this loads, and the shortcoming of the method is: servomotor self just exists electromagnetic radiation, and drive motor electromagnetic radiation test findings is had a strong impact on.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to provide the torque loading system of a kind of electromagnetic radiation for motor test, and this loading system can be eliminated the impact that the electromagnetic radiation of this loading system itself is tested the electromagnetic radiation of motor.
For this reason, the invention provides a kind of torque loading system of the test of the electromagnetic radiation for motor, described torque loading system comprises the first charger and is connected in the oil sources of described the first charger, described the first charger comprises load and execution mechanism, Torque Measuring System and hydraulic control module, wherein, described the first charger is arranged on an output shaft of described motor, and described Torque Measuring System is connected between described load and execution mechanism and a described output shaft;
Wherein, described load and execution mechanism comprises:
The double-direction gearpump that is connected mechanically to a described output shaft of described motor, described oil sources provides hydraulic oil source to described double-direction gearpump, regulates the output pressure of described double-direction gearpump, makes described double-direction gearpump produce adjustable torque load; With
Between described double-direction gearpump and described oil sources, form the hydraulic path of two way circuit, described double-direction gearpump be arranged to make a described output shaft of described motor overcome described double-direction gearpump described torque load and with described double-direction gearpump in the same way together with rotation; Wherein, hydraulic path described in described hydraulic control module control, in the time that described double-direction gearpump rotates with first direction in company with described motor, described hydraulic path forms the first hydraulic circuit that described double-direction gearpump is loaded a described output shaft, in the time that described double-direction gearpump rotates with second direction in company with described motor, described hydraulic path forms the second hydraulic circuit that described double-direction gearpump is loaded a described output shaft;
The size of the torque load that wherein, described Torque Measuring System produces for detection of described double-direction gearpump.
According to above-mentioned torque loading system, preferably, described hydraulic path comprises input path and outgoing route, and described outgoing route comprises surplus valve, by regulating the threshold value of described surplus valve, set the size that loads on the described torque load on a described output shaft.
According to above-mentioned torque loading system, preferably, described hydraulic control module also comprises control device, and described control device is controlled disconnection or the connection of described the first hydraulic circuit and the second hydraulic circuit according to the sense of rotation of described motor.
According to above-mentioned torque loading system, preferably, described the first hydraulic circuit comprises the first input retaining valve of the liquid input side that is arranged on double-direction gearpump and is arranged on the first output one-way valve of the liquid outgoing side of described double-direction gearpump, described the second hydraulic circuit comprises the second input retaining valve of the liquid input side that is arranged on double-direction gearpump 1 and is arranged on the second output one-way valve of the liquid outgoing side of described double-direction gearpump, described the first output one-way valve and described the second output one-way valve are connected to described outgoing route, the first input retaining valve and described the second input retaining valve are connected to described oil sources, wherein,
Described control device is arranged to: in the time that described motor rotates along first direction, described the first input retaining valve and described the first output one-way valve are opened, and described the second input retaining valve and described the second output one-way valve are closed; In the time that described motor rotates along second direction, described the second input retaining valve and described the second output one-way valve are opened, and described the first input retaining valve and described the first output one-way valve are closed.
According to above-mentioned torque loading system, preferably, also comprise slippage pump, the liquid in described oil sources is input to described double-direction gearpump by described slippage pump, to prevent double-direction gearpump suction.
According to above-mentioned torque loading system, preferably, the also setting manual ball valve in parallel with slippage pump and surplus valve respectively, for bypass slippage pump 5 and surplus valve.
According to above-mentioned torque loading system, preferably, also comprise low pressure relief valve, to regulate the pressure size from the liquid of described slippage pump.
According to above-mentioned torque loading system, preferably, described Torque Measuring System comprises the torque sensor being connected on a described output shaft and is connected in the secondary instrument of torque sensor.
According to above-mentioned torque loading system, preferably, be also included in the leakage path between described double-direction gearpump and described oil sources, make the interior hydraulic pressure of housing that leaks into described double-direction gearpump be discharged into described oil sources.
According to above-mentioned torque loading system, preferably, also comprise second charger identical with described the first charger, described the second charger is arranged between another output shaft and described oil sources of described motor.
According to above-mentioned torque loading system, preferably, also comprise the radiation spacer assembly being arranged between described load and execution mechanism and described hydraulic control module and oil sources.
According to above-mentioned torque loading system, preferably, described radiation spacer assembly comprises microwave dark room, and described load and execution mechanism and described Torque Measuring System are arranged in microwave dark room, and described hydraulic control module and oil sources are placed on outside described microwave dark room.
According to above-mentioned torque loading system, preferably, described load and execution mechanism and described Torque Measuring System are arranged on a mechanical stand, between described load and execution mechanism and hydraulic control module and oil sources, are connected by hydraulic hose, and described hydraulic hose is through described microwave dark room.
According to above-mentioned torque loading system, preferably, described hydraulic control module and oil sources be away from described load and execution mechanism, described Torque Measuring System and described motor, and the measurement of the electromagnetic radiation of the electromagnetic radiation that makes described hydraulic control module and oil sources on described motor does not affect.
Brief description of the drawings
Fig. 1 is according to a composition frame chart for the torque loading system of motor electromagnetic radiation test of the present invention, comprising the charger being separately positioned on two output shafts of motor;
Fig. 2 is the charger hydraulic path figure according to torque loading system of the present invention, wherein shows the hydraulic path figure that is separately positioned on the charger on two output shafts of motor.
Embodiment
Reference numeral is done to following example explanation: × × presentation function member, × × .1 represents this building blocks of function of a side that is arranged on two-way brshless DC motor 8, × × .2 represents that same building blocks of function is arranged on the opposite side of two-way brshless DC motor 8.
As shown in Figure 1, the torque loading system of the embodiment in diagram is made up of hydraulic control module and hydraulic oil source, load and execution mechanism and Torque Measuring System three parts.Wherein, as illustrated in fig. 1 and 2, hydraulic control module and oil sources comprise the parts such as slippage pump 5, repairing motor 6, surplus valve 2.1-2.2, retaining valve 7.1-7.8, ball valve 17,19.1,19.2, tensimeter 11.1-11.2,16, oil sources 22 and oily hydraulic hose, these parts connect into the liquid in oil sources 22 are input to double-direction gearpump 1.1-1.2, be discharged into the hydraulic circuit oil sources 22 from double-direction gearpump 1.1-1.2 again, make the output shaft of double-direction gearpump 1.1-1.2 produce torque load, load with the output shaft to drive motor.Shown in Fig. 1 respectively in the first hydraulic circuit 23.1 of the both sides of drive motor 8 and 25.1 and second hydraulic circuit 23.2 and 25.2.In order to discharge the liquid in the housing that leaks into double-direction gearpump 1.1-1.2, independent leakage path 24.1-24.2 also can be set.Topworks comprises the parts such as double-direction gearpump 1.1-1.2, shaft joint (not shown), mechanical stand (not shown).Torque Measuring System comprises torque sensor and secondary instrument.Fig. 1 is shown in by the block diagram of composition torch measuring system.
Need a set of charger of the each connection of drive motor 8 left and right output shafts of test, every cover charger comprises load and execution mechanism, Torque Measuring System and hydraulic control module and the shared hydraulic oil source of two cover chargers separately, left and right charger full symmetric, can load by bilateral simultaneously, also can one-sided independent loads.As can be seen here, another embodiment of the present invention is that the torque loading system of motor only includes a set of charger, measures respectively the torque load of two output shafts of motor with this set of charger.Taking a side charger as example, function and the principle of work of each ingredient is described below:
A) drive motor 8, torque sensor and double-direction gearpump 1.1 threes are mechanical connection by coupling shaft.
B) oil-feed of double-direction gearpump 1.1, oil return, housing are revealed and are connected with hydraulic oil source 22 by hydraulic hose respectively.
C) drive motor 8 is made active rotation, drive double-direction gearpump 1.1 to rotate, oil sources 22 provides hydraulic oil source to double-direction gearpump 1.1, now form hydraulic circuit by hydraulic module, regulate the output pressure of double-direction gearpump 1.1, make double-direction gearpump produce adjustable torque load, and load this load to the turning axle of drive motor 8.The first hydraulic circuit that when path 23.1 forms drive motor 8 and rotates towards a direction (clockwise direction) as the first oil return path as the first oil-feed path and path 25.1, double-direction gearpump 1.1 loads drive motor 8.The second hydraulic circuit that when path 25.1 forms drive motor 8 towards contrary another direction (counterclockwise) rotation as the first oil-feed path and path 23.1 as the first oil return path, double-direction gearpump 1.1 loads drive motor 8.Thus the output shaft of motor 8 overcome double-direction gearpump produce torque load and with double-direction gearpump in the same way together with rotation.
D) torque sensor is for testing the torque load size on the output shaft of drive motor 8, can change the size of pressure by the threshold value of the surplus valve 2.1 on the gear-type pump oil return path in adjusting hydraulic control module and oil sources 22, can change the size of the torque load on the output shaft that is loaded into drive motor 8.
The torque load of the drive motor 8 e) needing according to test, the threshold value of setting surplus valve 2.1, thus
Secondary instrument can show the size of the torque load on this output shaft that loads on drive motor 8.The concrete structure of the block diagram shown in Fig. 1 is, taking an output shaft of drive motor 8 as example, the output shaft of drive motor 8 is connected in double-direction gearpump 1.1, make drive motor 8 with double-direction gearpump 1.1 along same direction rotation.The torque sensor that is provided with the output torque load (being equal to the output torque load of drive motor 8) that detects double-direction gearpump 1.1 on the output shaft between drive motor 8 and double-direction gearpump 1.1, a secondary instrument is connected in torque sensor.In the time that drive motor 8 clockwise rotates, control device (not shown) makes path 23.1 as oil-feed path, path 25.1 is as oil return path, hydraulic oil source 22 provides hydraulic oil by the first oil-feed path 23.1 to double-direction gearpump 1.1, make double-direction gearpump 1.1 produce the torque load that loads on drive motor 8, now drive motor 8 overcomes this torque load and clockwise rotates, thus, the torque load numerical value of the output shaft of a side described in while obtaining drive motor 8 and clockwise rotate by secondary instrument.
In the time that drive motor 8 rotates counterclockwise, control device makes path 25.1 as oil-feed path, path 23.1 is as oil return path, hydraulic oil source 22 provides hydraulic oil by oil-feed path 25.1 to double-direction gearpump 1.1, make double-direction gearpump 1.1 produce the torque load that loads on drive motor 8, now drive motor 8 overcomes this torque load and rotates counterclockwise, thus, when obtaining drive motor 8 and rotate counterclockwise by secondary instrument described in the torque load numerical value of output shaft of a side.
Wherein, charger hydraulic schematic diagram is shown in Fig. 2, and each component function is in table 1.
Be that example is described double-direction gearpump 1.1 and how to be commutated with the charger of a side below.Fig. 2 shows one of them embodiment, and double-direction gearpump 1.1 is driven by drive motor 8, and its sense of rotation is consistent with the rotation direction of drive motor 8.When test, drive motor is done initiatively, the rotating rotation in cycle.
As shown in Figure 2, in the time that drive motor 8 clockwise rotates, drive double-direction gearpump 1.1 to clockwise rotate, the retaining valve 7.6 and the retaining valve 7.7 that are now arranged on double-direction gearpump 1.1 both sides can be opened automatically, and therefore hydraulic path is: oil sources 22--retaining valve 7.6--double-direction gearpump 1.1--retaining valve 7.7--surplus valve 2.1--oil sources 22.Double-direction gearpump 1.1 loads torque load to the output shaft of the drive motor 8 clockwise rotating thus.
As shown in Figure 2, in the time that drive motor 8 rotates counterclockwise, drive double-direction gearpump 1.1 to rotate counterclockwise, the retaining valve 7.8 and the retaining valve 7.5 that are now arranged on double-direction gearpump 1.1 both sides can be opened automatically, and therefore hydraulic path is: oil sources 22--retaining valve 7.8--double-direction gearpump 1.1--retaining valve 7.5--surplus valve 2.1--oil sources 22.Double-direction gearpump 1.1 loads torque load to the output shaft of the drive motor 8 rotating counterclockwise thus.
In addition, as shown in Figure 2, slippage pump 5 is also set, to guarantee continuing repairing, prevents double-direction gearpump 1 suction.Repairing motor 6 is for driving slippage pump 5.Manual ball valve 17 and 19.1 is also set, is respectively used to the slippage pump 5 of bypass repairing oil circuit and the surplus valve 2.1 of oil return circuit.Oil sources 22 also arranges filtrator 10, for filtering the oil return that enters oil sources 22 through oil return path.Liquid level liquid thermometer 13 is also set, is used to indicate liquid level and the temperature of the liquid in oil sources.Air strainer 14 is also set, the air that enters oil sources 22 is filtered.Filtrator 15 is also set, the hydraulic oil that is input to double-direction gearpump 1 is filtered.Tensimeter 16 is used to indicate the pressure of repairing.Tensimeter 11.1 is used to indicate the return pressure of double-direction gearpump 1.1.Low pressure relief valve 3 is for regulating the pressure size of repairing.
Whole test process is the process that the electric energy of drive motor 8 is converted to the hydraulic energy source (pressure) of double-direction gearpump 1, when work, drive motor 8 drives double-direction gearpump 1.1 rotations to do work, the size of the size reflection drive motor acting of double-direction gearpump 1.1 output pressures, be the output shaft loaded load of double-direction gearpump 1.1 to drive motor 8, the process of drive motor acting is exactly the process of output torque.Thus, secondary instrument can be measured by being connected to torque sensor on the output shaft of drive motor 8 output torque of drive motor 8.Secondary instrument is for showing in real time the torque value that torque sensor records.
The electromagnetic radiation that torque loading system of the present invention produces does not affect the electromagnetic radiation measuring value of drive motor 8, and this is relevant with the arrangement of torque loading system.As mentioned above, torque loading system of the present invention is divided into three parts: hydraulic control module and oil sources, load and execution mechanism and Torque Measuring System.Wherein load and execution mechanism and Torque Measuring System are arranged on a mechanical stand, between load and execution mechanism and hydraulic control module and oil sources, are connected by hydraulic hose.When test, hydraulic control module and oil sources are placed on outside microwave dark room, machinery stand (comprising load and execution mechanism and Torque Measuring System) is placed in microwave dark room, and hydraulic hose passes in through hole (under normal circumstances, microwave dark room all can arrange this through hole).Because load and execution mechanism is pure mechanical hook-up, without any electromagnetic radiation, Torque Measuring System is only demarcated for moment of torsion before test, in test, does not work, and does not also externally produce electromagnetic radiation, therefore can not impact the electromagnetic environment in microwave dark room.In the time of the electromagnetic radiation of test drive motor under a torque load, in microwave dark room, only have tested drive motor 8 to produce electromagnetic radiation.
Traditional servomotor load mode itself will produce electromagnetic radiation, and in the time of the electromagnetic radiation of test drive motor, measured electromagnetic radiation data is also subject to the impact of the electromagnetic radiation that servomotor produces.This is the fundamental difference of the present invention and prior art.
Above-mentioned exemplary embodiment shows an embodiment in the technical scheme that solves the technical problem to be solved in the present invention.Under the example of this embodiment, other equivalence and similar means that meet the principle of the invention all belong in the scope of protection of the invention.Inventive principle of the present invention is that torque loading system mainly comprises three parts, hydraulic control module and oil sources, load and execution mechanism and Torque Measuring System.Wherein hydraulic control module and oil sources and load and execution organizational separation, the impact of the electromagnetic radiation measuring of the electromagnetic radiation that makes hydraulic control module and oil sources on motor is minimum or do not have.Under this know-why, can implement technical scheme with some embodiment, for example, can make hydraulic control module and oil sources leave load and execution mechanism enough far away.
Table 1 component function
Claims (14)
1. the torque loading system of the test of the electromagnetic radiation for motor, described torque loading system comprises the first charger and is connected in the oil sources of described the first charger, described the first charger comprises load and execution mechanism, Torque Measuring System and hydraulic control module, wherein, described the first charger is arranged on an output shaft of described motor, and described Torque Measuring System is connected between described load and execution mechanism and a described output shaft;
Wherein, described load and execution mechanism comprises:
The double-direction gearpump that is connected mechanically to a described output shaft of described motor, described oil sources provides hydraulic oil source to described double-direction gearpump, regulates the output pressure of described double-direction gearpump, makes described double-direction gearpump produce adjustable torque load; With
Between described double-direction gearpump and described oil sources, form the hydraulic path (23.1 of two way circuit, 25.1), described double-direction gearpump be arranged to make a described output shaft of described motor overcome described double-direction gearpump described torque load and with described double-direction gearpump in the same way together with rotation;
Wherein, hydraulic path described in described hydraulic control module control, in the time that described double-direction gearpump rotates with first direction in company with described motor, described hydraulic path forms the first hydraulic circuit that described double-direction gearpump is loaded a described output shaft, in the time that described double-direction gearpump rotates with second direction in company with described motor, described hydraulic path forms the second hydraulic circuit that described double-direction gearpump is loaded a described output shaft;
The size of the torque load that wherein, described Torque Measuring System produces for detection of described double-direction gearpump.
2. torque loading system as claimed in claim 1, it is characterized in that, described hydraulic path comprises input path and outgoing route, described outgoing route comprises surplus valve (2.1), by regulating the threshold value of described surplus valve, set the size of the described torque load that loads on a described output shaft.
3. torque loading system as claimed in claim 2, is characterized in that, described hydraulic control module also comprises control device, and described control device is controlled disconnection or the connection of described the first hydraulic circuit and the second hydraulic circuit according to the sense of rotation of described motor.
4. torque loading system as claimed in claim 3, is characterized in that, described the first hydraulic circuit comprises the first input retaining valve (7.4 of the liquid input side that is arranged on double-direction gearpump; 7.8) and be arranged on the first output one-way valve (7.1 of the liquid outgoing side of described double-direction gearpump 1; 7.5), described the second hydraulic circuit comprises the second input retaining valve (7.2 of the liquid input side that is arranged on double-direction gearpump 1; 7.6) and be arranged on the second output one-way valve (7.3 of the liquid outgoing side of described double-direction gearpump 1; 7.7), described the first output one-way valve (7.1; 7.5) and described the second output one-way valve (7.3; 7.7) be connected to described outgoing route, the first input retaining valve (7.4; 7.8) and described second input retaining valve (7.2; 7.6) be connected to described oil sources (22), wherein,
Described control device is arranged to: in the time that described motor 8 rotates along first direction, and described the first input retaining valve (7.4; 7.8) and described the first output one-way valve (7.1; 7.5) open described the second input retaining valve (7.2; 7.6) and described the second output one-way valve (7.3; 7.7) close; In the time that described motor 8 rotates along second direction, described the second input retaining valve (7.2; 7.6) and described the second output one-way valve (7.3; 7.7) open described the first input retaining valve (7.4; 7.8) and described the first output one-way valve (7.1; 7.5) close.
5. torque loading system as claimed in claim 4, is characterized in that, also comprises slippage pump (5), and the liquid in described oil sources 22 is input to described double-direction gearpump 1 by described slippage pump 5, to prevent double-direction gearpump 1 suction.
6. torque loading system as claimed in claim 5, is characterized in that, the manual ball valve (17,19.1) in parallel with slippage pump 5 and surplus valve 2.1 is also set respectively, for bypass slippage pump 5 and surplus valve 2.1.
7. torque loading system as claimed in claim 5, is characterized in that, also comprises low pressure relief valve 3, to regulate the pressure size from the liquid of described slippage pump 5.
8. torque loading system as claimed in claim 1, is characterized in that, described Torque Measuring System comprises the torque sensor being connected on a described output shaft and is connected in the secondary instrument of torque sensor.
9. torque loading system as claimed in claim 1, is characterized in that, is also included in the leakage path 24.1 between described double-direction gearpump and described oil sources, makes the interior hydraulic pressure of housing that leaks into described double-direction gearpump be discharged into described oil sources.
10. the torque loading system as described in any one in claim 1-9, it is characterized in that, also comprise second charger identical with described the first charger, described the second charger is arranged between another output shaft and described oil sources 22 of described motor 8.
11. torque loading systems as claimed in claim 10, also comprise the radiation spacer assembly being arranged between described load and execution mechanism and described hydraulic control module and oil sources.
12. torque loading systems as claimed in claim 11, it is characterized in that, described radiation spacer assembly comprises microwave dark room, and described load and execution mechanism and described Torque Measuring System are arranged in microwave dark room, and described hydraulic control module and oil sources 22 are placed on outside described microwave dark room.
13. torque loading systems as claimed in claim 12, it is characterized in that, described load and execution mechanism and described Torque Measuring System are arranged on a mechanical stand, between described load and execution mechanism and hydraulic control module and oil sources, be connected by hydraulic hose, described hydraulic hose is through described microwave dark room.
14. torque loading systems as claimed in claim 10, it is characterized in that, described hydraulic control module and oil sources be away from described load and execution mechanism, described Torque Measuring System and described motor, and the measurement of the electromagnetic radiation of the electromagnetic radiation that makes described hydraulic control module and oil sources on described motor does not affect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186583.1A CN103941107A (en) | 2014-05-05 | 2014-05-05 | Torque loading system for electromagnetic radiation test of motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186583.1A CN103941107A (en) | 2014-05-05 | 2014-05-05 | Torque loading system for electromagnetic radiation test of motor |
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| CN103941107A true CN103941107A (en) | 2014-07-23 |
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| CN201410186583.1A Pending CN103941107A (en) | 2014-05-05 | 2014-05-05 | Torque loading system for electromagnetic radiation test of motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107359A (en) * | 2016-11-24 | 2018-06-01 | 陕西航空电气有限责任公司 | A kind of electric motor system EMC test torque loading device |
| CN105629170B (en) * | 2015-12-30 | 2019-01-01 | 广州广电计量检测股份有限公司 | A kind of electromagnetic compatibility motor loading test device |
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| CN201262593Y (en) * | 2008-09-26 | 2009-06-24 | 成都发动机（集团）有限公司 | Test device capable of implementing main torquemoment and oscillation torquemoment to high speed circumversion main spindle |
| CN101639414A (en) * | 2009-05-07 | 2010-02-03 | 北京理工大学 | Torque loading system of hydraulic pump |
| CN102889983A (en) * | 2012-09-28 | 2013-01-23 | 吉林大学 | Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07260628A (en) * | 1994-03-25 | 1995-10-13 | Niigata Converter Kk | Transmission gear for generating load in power circulation type test equipment |
| CN101216052A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Rotating speed variable driving shield cutterhead energy-saving hydraulic control system |
| CN201262593Y (en) * | 2008-09-26 | 2009-06-24 | 成都发动机（集团）有限公司 | Test device capable of implementing main torquemoment and oscillation torquemoment to high speed circumversion main spindle |
| CN101639414A (en) * | 2009-05-07 | 2010-02-03 | 北京理工大学 | Torque loading system of hydraulic pump |
| CN102889983A (en) * | 2012-09-28 | 2013-01-23 | 吉林大学 | Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629170B (en) * | 2015-12-30 | 2019-01-01 | 广州广电计量检测股份有限公司 | A kind of electromagnetic compatibility motor loading test device |
| CN108107359A (en) * | 2016-11-24 | 2018-06-01 | 陕西航空电气有限责任公司 | A kind of electric motor system EMC test torque loading device |
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Application publication date: 20140723 |