CN111735628B - Dynamic testing method of hydrogen fuel cell engine in power assembly loop - Google Patents
Dynamic testing method of hydrogen fuel cell engine in power assembly loop Download PDFInfo
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- CN111735628B CN111735628B CN202010628993.2A CN202010628993A CN111735628B CN 111735628 B CN111735628 B CN 111735628B CN 202010628993 A CN202010628993 A CN 202010628993A CN 111735628 B CN111735628 B CN 111735628B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
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Abstract
The invention discloses a dynamic test method of a hydrogen fuel cell engine in a power assembly loop, which comprises the following steps: preparing before monitoring; fixing the relative position of the U-shaped plate and the engine; fixing the relative position of the sensor and the engine; fixing the position of the pull rope; carrying out detection; after detection, the invention relates to the technical field of hydrogen fuel cell engines. This hydrogen fuel cell engine is at dynamic test method in power assembly return circuit, the U-shaped board is injectd the position of a plurality of corresponding slide cartridges through a plurality of first spouts, every splint is connected with a plurality of slide cartridges, the slide cartridge is injectd the position of slide bar through slide and spacing ring board, the realization is injectd the position of a plurality of sensors through a splint, the common method of carrying out dynamic test to hydrogen fuel cell engine in the power assembly return circuit has been solved, every sensor needs to fix alone, complex operation, the problem of waste time.
Description
Technical Field
The invention relates to the technical field of hydrogen fuel cell engines, in particular to a dynamic test method of a hydrogen fuel cell engine in a power assembly loop.
Background
The hydrogen fuel is liquid hydrogen fuel, one gram of hydrogen can release 142 kilojoules of heat when burning, the heat is 3 times of gasoline heat, the burning product is water, ash and waste gas are avoided, the environment is not polluted, because the hydrogen fuel battery has a series of excellent performances of high efficiency, zero emission, stable operation, no noise and the like, the hydrogen fuel battery is regarded as the most possible power source of the future automobile, the fuel battery hybrid power automobile is the trend of the development of the future automobile industry, and in the process of developing the fuel battery automobile, in order to verify the design of a fuel battery engine system, the core of the fuel battery automobile, namely a fuel battery engine, needs to be tested based on corresponding standards so as to develop the fuel battery engine meeting the requirements of a power system.
When testing the vibrations of engine, in order to detect a plurality of positions simultaneously, need use a plurality of sensors, every sensor need be fixed alone, complex operation, waste time, moreover, need fix the position between engine and the detection device, and common detection device itself can be connected through between other devices and the workstation again, leads to detection device to produce the influence to the engine, influences final testing result.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a dynamic test method of a hydrogen fuel cell engine in a power assembly loop, which solves the problems that each sensor needs to be independently fixed, the operation is complex, the time is wasted, and the engine is indirectly connected with an external auxiliary fixing device through a detection device, so that the detection device can influence the engine and the final detection result in a common method for dynamically testing the hydrogen fuel cell engine in the power assembly loop.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a dynamic testing method of a hydrogen fuel cell engine in a power assembly loop comprises the following steps:
step one, preparation before monitoring: placing an engine to be detected on a workbench, turning on a power supply of a detection box, checking each attribute in the detection box, and checking the working states of all sensors;
step two, fixing the relative position of the U-shaped plate and the engine: the U-shaped plate is moved, the U-shaped plate is placed above the engine and buckled outside the engine, the U-shaped plate is moved downwards, and when the bottom of the fixing box is contacted with the top of the engine, the magnet block and the engine are mutually attracted due to magnetic force, so that the relative positions of the U-shaped plate and the engine are simply fixed;
fixing the relative position of the sensor and the engine: the second U-shaped rod is pulled to drive the pull rope, the pull rope drives the limiting wheel set and the rotating wheel to rotate, when the rotating wheel rotates, the relative position of the clamping rod is moved, the clamping rod and the first U-shaped rod slide relatively, meanwhile, the clamping plate is driven to move towards the direction close to the U-shaped plate, the U-shaped plate drives the sliding cylinder to move, the sliding cylinder drives the sliding plate to move through the rubber block, and the sliding plate drives the sensor to move through the sliding rod, so that the sensor is in close contact with the side face of the engine;
step four, fixing the position of the pull rope: moving a positioning plate, wherein the positioning plate drives a limiting rod to slide in a limiting groove, the positioning plate drives a spring to move towards the direction close to a fixing plate, the spring contracts, the second U-shaped rod is moved between two corresponding L-shaped rods, the L-shaped rods are rotated to enable the L-shaped rods to be in an upward state, the positioning plate is loosened, the positioning plate moves towards the position close to the L-shaped rods under the action of the spring, the L-shaped rods enter a positioning groove, and the fixing of a pull rope is completed;
step five, detection is carried out: starting the engine, acquiring vibration frequency of each part of the engine through a plurality of sensors, transmitting the acquired information to a detection box, and processing, recording and displaying the information through the detection box;
step six, after detection: and repeating the fourth step, the third step, the second step and the first step in sequence, and then detecting other engines needing to be detected again.
The invention also discloses a detection device based on the dynamic test method of the hydrogen fuel cell engine in the power assembly loop, which comprises a workbench, an engine and a detection box, the bottom of the engine is pressed with the top of the workbench, the bottom of the detection box is fixedly connected with the top of the workbench, the side surface of the engine is movably connected with a U-shaped plate which is movably connected with the top of the detection box through a transmission line, a first sliding groove is arranged on the side surface of the U-shaped plate, the inner surface of the first sliding groove is connected with a sliding cylinder in a sliding way, the top end of the sliding cylinder is fixedly connected with a clamping plate, the bottom end of the sliding cylinder is fixedly connected with a limiting ring plate, the inner surface of the sliding cylinder is connected with a sliding rod in a sliding way through a sliding plate, and the side of the sliding plate is movably connected with the side of the clamping plate through a rubber block, and one end of the sliding rod is fixedly connected with a sensor which is in compression joint with the side of the engine.
Preferably, the side surface of the clamping plate is fixedly connected with a first U-shaped rod, and the side surface of the first U-shaped rod is slidably connected with a clamping rod.
Preferably, the side of U template rotates and is connected with the runner, and the side of runner rotates through the surface of bearing and clamping bar to be connected, the outer fixed surface of runner is connected with the stay cord, the side of U template rotates and is connected with the spacing wheelset with the surface sliding connection of stay cord.
Preferably, the top end of the pull rope is fixedly connected with a second U-shaped rod, and the side face of the U-shaped plate is rotatably connected with an L-shaped rod which is connected with the outer surface of the second U-shaped rod in a sliding mode.
Preferably, the top of the U-shaped plate is connected with a positioning plate in a sliding mode through a limiting plate, and a positioning groove in sliding connection with the outer surface of the L-shaped rod is formed in the side face of the positioning plate.
Preferably, the top of the U-shaped plate is fixedly connected with a fixing plate, and the side surface of the fixing plate is fixedly connected with a spring fixedly connected with the side surface of the positioning plate.
Preferably, a limiting groove is formed in the side face of the limiting plate, and a limiting rod in sliding connection with the inner surface of the limiting groove is fixedly connected to the side face of the positioning plate.
Preferably, the bottom of the inner cavity of the U-shaped plate is fixedly connected with a magnet block through a fixing box, a through hole is formed in the bottom of the fixing box, and the bottom of the fixing box is in compression joint with the top of the engine.
Advantageous effects
The invention provides a dynamic testing method of a hydrogen fuel cell engine in a power assembly loop.
Compared with the prior art, the method has the following beneficial effects:
1. the dynamic test method of the hydrogen fuel cell engine in the power assembly loop comprises the steps that a U-shaped plate which is movably connected with the top of a detection box through a transmission line is movably connected to the side face of the engine, a first sliding groove is formed in the side face of the U-shaped plate, a sliding cylinder is slidably connected to the inner surface of the first sliding groove, a clamping plate is fixedly connected to the top end of the sliding cylinder, a limiting ring plate is fixedly connected to the bottom end of the sliding cylinder, a sliding rod is slidably connected to the inner surface of the sliding cylinder through the sliding plate, the side face of the sliding plate is movably connected with the side face of the clamping plate through a rubber block, a sensor which is in compression joint with the side face of the engine is fixedly connected to one end of the sliding rod, the U-shaped plate limits the positions of a plurality of corresponding sliding cylinders through a plurality of first sliding grooves, each clamping plate is connected with a plurality of sliding cylinders, the sliding cylinders limit the positions of the sliding rods are limited through the sliding plates and the limiting ring plate, and the rubber blocks play a buffering role, the position of a plurality of sensors is limited through a clamping plate, when the position of the sensor is fixed, the position of the clamping plate is fixed, so that the position of the plurality of sensors can be fixed, the operation is simple, the common method for dynamically testing the hydrogen fuel cell engine in a power assembly loop is solved, each sensor needs to be fixed independently, the operation is complex, and the time is wasted.
2. The dynamic test method of the hydrogen fuel cell engine in the power assembly loop comprises the steps that a U-shaped plate which is movably connected with the top of a detection box through a transmission line is movably connected to the side face of the engine, a first sliding groove is formed in the side face of the U-shaped plate, a sliding cylinder is connected to the inner surface of the first sliding groove in a sliding mode, a limiting ring plate is fixedly connected to the bottom end of the sliding cylinder, a sliding rod is connected to the inner surface of the sliding cylinder in a sliding mode through a sliding plate, the side face of the sliding plate is movably connected with the side face of a clamping plate through a rubber block, a sensor which is in compression joint with the side face of the engine is fixedly connected to one end of the sliding rod, the test device is divided into a data processing part and a data acquisition part through the transmission line, the data processing part is fixedly connected with the position of a workbench, the data acquisition part is fixed without using an external auxiliary fixing device, and is directly fixed with the engine through an internal fixing device, during testing, the data acquisition part can not influence the engine, and the problem that the engine is indirectly connected with an external auxiliary fixing device through a detection device in a common method for dynamically testing the hydrogen fuel cell engine in a power assembly loop, so that the detection device can influence the engine and the final detection result is solved.
3. The dynamic testing method of the hydrogen fuel cell engine in the power assembly loop comprises the steps that a second U-shaped rod is fixedly connected to the top end of a pull rope, the side face of the U-shaped plate is rotatably connected with an L-shaped rod which is in sliding connection with the outer surface of the second U-shaped rod, the top of the U-shaped plate is in sliding connection with a positioning plate through a limiting plate, the side face of the positioning plate is provided with a positioning groove which is in sliding connection with the outer surface of the L-shaped rod, the top of the U-shaped plate is fixedly connected with a fixing plate, the side face of the fixing plate is fixedly connected with a spring which is fixedly connected with the side face of the positioning plate, the side face of the limiting plate is fixedly connected with a limiting rod which is in sliding connection with the inner surface of the limiting groove, the position of the second U-shaped rod is fixed through two corresponding L-shaped rods, the L-shaped rods can rotate, the second U-shaped rod can be conveniently placed at the position of the L-shaped rod, and the position of the positioning plate is limited by the limiting plate, spacing groove and gag lever post further prescribe a limit to the position of locating plate in coordination, the relatively stable of guarantee locating plate position, and the cooperation of spring and fixed plate, guarantee locating plate and L type pole in close contact with fixes the position of L type pole through the constant head tank, and the stability of guarantee stay cord position improves overall structure's stability, and the guarantee can not become flexible, and the guarantee detects going on smoothly.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the structural connection between the U-shaped plate and the sliding cylinder according to the present invention;
FIG. 3 is a schematic view of the structural connection between the positioning plate and the U-shaped plate according to the present invention;
FIG. 4 is a schematic view of the structural connection between the stationary box and the engine according to the present invention;
FIG. 5 is a schematic view of the structural connection between the runner and the clamping bar according to the present invention;
FIG. 6 is a schematic view of the structural connection of the pull rope and the limiting wheel set of the present invention;
FIG. 7 is a schematic view showing the structural connection between the fixing case and the magnet block according to the present invention;
fig. 8 is a partial enlarged view of the invention at a in fig. 1.
In the figure, 1, a workbench; 2. an engine; 3. a detection box; 4. a U-shaped plate; 5. a first chute; 6. a sliding cylinder; 7. a splint; 8. a limit ring plate; 9. a slide plate; 10. a slide bar; 11. a sensor; 12. a first U-shaped bar; 13. a clamping bar; 14. a rotating wheel; 15. pulling a rope; 16. a limiting wheel set; 17. a second U-shaped bar; 18. an L-shaped rod; 19. a limiting plate; 20. positioning a plate; 21. positioning a groove; 22. a fixing plate; 23. a spring; 24. a limiting groove; 25. a limiting rod; 26. a fixed box; 27. a magnet block; 28. a through hole; 29. a rubber block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, an embodiment of the present invention provides a technical solution: a dynamic testing method of a hydrogen fuel cell engine in a power assembly loop comprises the following steps:
step one, preparation before monitoring: placing an engine 2 to be detected on a workbench 1, turning on a power supply of a detection box 3, checking each attribute in the detection box 3, and checking the working state of a sensor 11;
step two, fixing the relative position of the U-shaped plate 4 and the engine 2: the U-shaped plate 4 is moved, the U-shaped plate 4 is placed above the engine 2 and buckled outside the engine 2, the U-shaped plate 4 is moved downwards, and when the bottom of the fixing box 26 is contacted with the top of the engine 2, the magnet blocks 27 and the engine 2 are mutually attracted due to magnetic force, so that the relative position of the U-shaped plate 4 and the engine 2 is simply fixed;
step three, fixing the relative position of the sensor 11 and the engine 2: pulling a second U-shaped rod 17, driving a pull rope 15 by the second U-shaped rod 17, driving a limiting wheel set 16 and a rotating wheel 14 to rotate by the pull rope 15, moving the relative position of a clamping rod 13 when the rotating wheel 14 rotates, driving a clamping rod 13 to slide relative to a first U-shaped rod 12, driving a clamping plate 7 to move towards the direction close to a U-shaped plate 4, driving a sliding cylinder 6 to move by the U-shaped plate 4, driving a sliding plate 9 to move by the sliding cylinder 6 through a rubber block 29, driving a sensor 11 to move by the sliding plate 9 through a sliding rod 10, and enabling the sensor 11 to be in close contact with the side surface of the engine 2;
step four, fixing the position of the pull rope 15: moving the positioning plate 20, the positioning plate 20 drives the limiting rod 25 to slide in the limiting groove 24, the positioning plate 20 drives the spring 23 to move towards the direction close to the fixing plate 22, the spring 23 contracts, the second U-shaped rod 17 is moved between the two corresponding L-shaped rods 18, the L-shaped rods 18 are rotated to enable the L-shaped rods 18 to be in an upward state, the positioning plate 20 is loosened, the positioning plate 20 moves towards the position close to the L-shaped rods 18 under the action of the spring 23, the L-shaped rods 18 enter the positioning grooves 21, and the fixing of the pull rope 15 is completed;
step five, detection is carried out: starting the engine 2, acquiring vibration frequency of each part of the engine 2 through the plurality of sensors 11, transmitting acquired information to the detection box 3, and processing, recording and displaying the information through the detection box 3;
step six, after detection: and repeating the fourth step, the third step, the second step and the first step in sequence, and then detecting other engines 2 needing to be detected again.
The invention also discloses a detection device based on a dynamic test method of a hydrogen fuel cell engine in a power assembly loop, which comprises a workbench 1, an engine 2 and a detection box 3, wherein the bottom of the engine 2 is in compression joint with the top of the workbench 1, the bottom of the detection box 3 is fixedly connected with the top of the workbench 1, the side surface of the engine 2 is movably connected with a U-shaped plate 4 which is movably connected with the top of the detection box 3 through a transmission line, the side surface of the U-shaped plate 4 is provided with a first sliding chute 5, the inner surface of the first sliding chute 5 is in sliding connection with a sliding cylinder 6, the top end of the sliding cylinder 6 is fixedly connected with a clamping plate 7, the front side and the rear side of the U-shaped plate 4 are respectively provided with two clamping plates 7, the two clamping plates 7 are connected through three connecting plates, the position stability of the clamping plates 7 is improved, the bottom end of the sliding cylinder 6 is fixedly connected with a limiting ring plate 8, the inner surface of the sliding cylinder 6 is in sliding connection with a sliding rod 10 through a sliding plate 9, the side surface of the sliding plate 9 is movably connected with the side surface of the clamping plate 7 through a rubber block 29, one end of the sliding rod 10 is fixedly connected with a sensor 11 which is in pressure connection with the side surface of the engine 2, the rubber block 29 provides certain buffer to prevent the sensor 11 from being stressed too much, the side surface of the clamping plate 7 is fixedly connected with a first U-shaped rod 12, the side surface of the first U-shaped rod 12 is connected with a clamping rod 13 in a sliding manner, the side surface of the U-shaped plate 4 is connected with a rotating wheel 14 in a rotating manner, the side surface of the rotating wheel 14 is connected with the outer surface of the clamping rod 13 in a rotating manner through a bearing, the outer surface of the rotating wheel 14 is fixedly connected with a pull rope 15, the side surface of the U-shaped plate 4 is connected with a limiting wheel set 16 which is connected with the outer surface of the pull rope 15 in a sliding manner, the top end of the pull rope 15 is fixedly connected with a second U-shaped rod 17, the side surface of the U-shaped plate 4 is connected with an L-shaped rod 18 which is connected with the outer surface of the second U-shaped rod 17 in a rotating manner, each second U-shaped rod 17 is connected with two L-shaped rods 18, two L type poles 18 are located the both sides of second U type pole 17 respectively, there is locating plate 20 at the top of U type board 4 through limiting plate 19 sliding connection, locating slot 21 with L type pole 18's surface sliding connection is seted up to locating plate 20's side, the top fixedly connected with fixed plate 22 of U type board 4, the side fixedly connected with of fixed plate 22 and the side fixedly connected with spring 23 of locating plate 20, spacing groove 24 has been seted up to limiting plate 19's side, the side fixedly connected with of locating plate 20 and the spacing pole 25 of the internal surface sliding connection of spacing groove 24, fixed box 26 fixedly connected with magnet piece 27 is passed through to the bottom of U type board 4 inner chamber, through-hole 28 has been seted up to fixed box 26's bottom, through-hole 28 sets up a plurality ofly, prevent that fixed box 26 from consuming too greatly to the magnetic attraction between magnet piece 27 and the engine 2, the bottom of fixed box 26 and the top crimping of engine 2.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a testing arrangement of hydrogen fuel cell engine in power assembly return circuit, includes workstation (1), engine (2) and detection case (3), the bottom of engine (2) and the top crimping of workstation (1), the bottom of detection case (3) and the top fixed connection of workstation (1), its characterized in that: the side face of the engine (2) is movably connected with a U-shaped plate (4) which is movably connected with the top of the detection box (3) through a transmission line, a first sliding groove (5) is formed in the side face of the U-shaped plate (4), the inner surface of the first sliding groove (5) is slidably connected with a sliding cylinder (6), the top end of the sliding cylinder (6) is fixedly connected with a clamping plate (7), the bottom end of the sliding cylinder (6) is fixedly connected with a limiting ring plate (8), the inner surface of the sliding cylinder (6) is slidably connected with a sliding rod (10) through a sliding plate (9), the side face of the sliding plate (9) is movably connected with the side face of the clamping plate (7) through a rubber block (29), one end of the sliding rod (10) is fixedly connected with a sensor (11) which is in compression joint with the side face of the engine (2), the side face of the clamping plate (7) is fixedly connected with a first U-shaped rod (12), and the side face of the first U-shaped rod (12) is slidably connected with a clamping rod (13), the side of the U-shaped plate (4) is rotatably connected with a rotating wheel (14), the side of the rotating wheel (14) is rotatably connected with the outer surface of a clamping rod (13) through a bearing, the outer surface of the rotating wheel (14) is fixedly connected with a pull rope (15), the side of the U-shaped plate (4) is rotatably connected with a limiting wheel set (16) in sliding connection with the outer surface of the pull rope (15), the top end of the pull rope (15) is fixedly connected with a second U-shaped rod (17), the side of the U-shaped plate (4) is rotatably connected with an L-shaped rod (18) in sliding connection with the outer surface of the second U-shaped rod (17), the top of the U-shaped plate (4) is slidably connected with a positioning plate (20) through a limiting plate (19), the side of the positioning plate (20) is provided with a positioning groove (21) in sliding connection with the outer surface of the L-shaped rod (18), the top of the U-shaped plate (4) is fixedly connected with a fixing plate (22), the side fixedly connected with of fixed plate (22) and side fixed connection's of locating plate (20) spring (23), spacing groove (24) have been seted up to the side of limiting plate (19), the side fixedly connected with of locating plate (20) and spacing rod (25) of the internal surface sliding connection of spacing groove (24), the bottom of U template (4) inner chamber is through fixation case (26) fixedly connected with magnet piece (27), through-hole (28) have been seted up to the bottom of fixation case (26), the bottom of fixation case (26) and the top crimping of engine (2).
2. A dynamic test method for a test device of a hydrogen fuel cell engine in a power train circuit according to claim 1, characterized in that: the method specifically comprises the following steps:
step one, preparation before monitoring: placing an engine (2) to be detected on a workbench (1), turning on a power supply of a detection box (3), checking each attribute in the detection box (3), and checking the working state of all sensors (11);
step two, fixing the relative position of the U-shaped plate (4) and the engine (2): the U-shaped plate (4) is moved, the U-shaped plate (4) is placed above the engine (2) and buckled outside the engine (2), the U-shaped plate (4) is moved downwards, and when the bottom of the fixed box (26) is contacted with the top of the engine (2), the magnet block (27) and the engine (2) are mutually attracted due to magnetic force, so that the relative position of the U-shaped plate (4) and the engine (2) is simply fixed;
fixing the relative position of the sensor (11) and the engine (2): pulling a second U-shaped rod (17), wherein the second U-shaped rod (17) drives a pull rope (15), the pull rope (15) drives a limiting wheel set (16) and a rotating wheel (14) to rotate, when the rotating wheel (14) rotates, the relative position of a clamping rod (13) moves, the clamping rod (13) and a first U-shaped rod (12) slide relatively, meanwhile, a clamping plate (7) is driven to move towards the direction close to a U-shaped plate (4), the U-shaped plate (4) drives a sliding cylinder (6) to move, the sliding cylinder (6) drives a sliding plate (9) to move through a rubber block (29), the sliding plate (9) drives a sensor (11) to move through a sliding rod (10), and the sensor (11) is in close contact with the side face of an engine (2);
step four, fixing the position of the pull rope (15): the positioning plate (20) is moved, the positioning plate (20) drives the limiting rods (25) to slide in the limiting grooves (24), the positioning plate (20) drives the springs (23) to move towards the direction close to the fixing plate (22), the springs (23) contract, the second U-shaped rod (17) is moved between the two corresponding L-shaped rods (18), the L-shaped rods (18) are rotated, the L-shaped rods (18) are enabled to be in an upward state, the positioning plate (20) is loosened, the positioning plate (20) moves towards the position close to the L-shaped rods (18) under the action of the springs (23), the L-shaped rods (18) enter the positioning grooves (21), and the fixing of the pull ropes (15) is completed;
step five, detection is carried out: starting the engine (2), acquiring vibration frequency of each part of the engine (2) through a plurality of sensors (11), transmitting acquired information to the detection box (3), and processing, recording and displaying the information through the detection box (3);
step six, after detection: and repeating the fourth step, the third step, the second step and the first step in sequence, and then detecting other engines (2) needing to be detected again.
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| CN209513268U (en) * | 2019-04-15 | 2019-10-18 | 上海机动车检测认证技术研究中心有限公司 | A kind of fuel battery engines test macro |
| CN110686900A (en) * | 2019-10-30 | 2020-01-14 | 东莞氢宇新能源科技有限公司 | Fuel cell engine test equipment with water-cooling heat dissipation function |
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