CN115112377B - Hydrogen fuel cell engine dynamic performance test platform and method thereof - Google Patents

Hydrogen fuel cell engine dynamic performance test platform and method thereof Download PDF

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Publication number
CN115112377B
CN115112377B CN202211045113.4A CN202211045113A CN115112377B CN 115112377 B CN115112377 B CN 115112377B CN 202211045113 A CN202211045113 A CN 202211045113A CN 115112377 B CN115112377 B CN 115112377B
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fuel cell
plate
limiting
hydrogen fuel
cell engine
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CN115112377A (en
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王介怡
闵启
高永兴
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Suzhou Intermold Technology Co ltd
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Suzhou Yingtemo Automobile Technology Co ltd
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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • General Physics & Mathematics (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a dynamic performance testing platform of a hydrogen fuel cell engine and a method thereof, wherein the dynamic performance testing platform comprises a base, supporting rods are arranged on the periphery of the top of the base, a control console is arranged on the back of the base, limiting rods are arranged on two sides of the top of the base, linking rods are arranged on two sides of the top of the base and are positioned on the inner sides of the limiting rods, and positioning rings are sleeved on the outer surfaces of the limiting rods. The invention uploads the change of the induction value to the console through the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor, and obtains the vibration amplitude of the hydrogen fuel cell engine during working through the change of the pressure value so as to finish the test work of the device; and the accuracy of the test data is ensured by measuring multiple data of the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor.

Description

Dynamic performance test platform and method for hydrogen fuel cell engine
Technical Field
The invention relates to the technical field of engine detection equipment, in particular to a dynamic performance test platform and a dynamic performance test method for a hydrogen fuel cell engine.
Background
A modern automobile hydrogen fuel cell system is taken as an ultimate environment-friendly solution, the China carbon neutralization process is assisted, a better and more sustainable future is created for all people, and with the emergence of a hydrogen fuel cell engine, after the hydrogen fuel cell engine is produced, different testing equipment is needed to detect various performances of the hydrogen fuel cell engine so as to ensure the rationality of the product quality, and then defective products are screened out so as to ensure the production quality of the product.
The prior art hydrogen fuel cell engine tests have the following defects:
1. when the hydrogen fuel cell engine is used, the vibration amplitude of the hydrogen fuel cell engine determines the installation structure required to be used when the hydrogen fuel cell engine is installed, and the safe vibration range of the device is ensured under the condition of different rotating speeds, so that the accuracy of test data is influenced because the hydrogen fuel cell engine is not detected more comprehensively and is detected in a single angle and direction due to the use of the testing device in the detection work of the dynamic performance of the vibration amplitude of the hydrogen fuel cell engine.
2. The difference of the sizes of the structural models of the hydrogen fuel cell engines is caused by different types of the hydrogen fuel cell engines, the unicity of a detection object of the test equipment influences the application range of the test equipment, the test equipment is difficult to meet the test work of different hydrogen fuel cell engines, and the use effect of the test equipment is influenced.
3. Aiming at the test work of different hydrogen fuel cell engines, the test equipment needs to prevent the influence of the vibration amplitude on the structure of the device when the test equipment carries out the test work due to the difference of the vibration amplitudes of different equipment, and the use of the device needs an applicable protection structure.
4. For the precision of guarantee test data, maintain and change test structure and be the basis that keeps its high-efficient work nature, traditional testing arrangement's complexity is not convenient for change the dismantlement of its structure, influences the high-efficient usability of device then, and the complicacy of structure and the bulkiness of size also add the degree of difficulty for the transportation work.
Disclosure of Invention
The invention aims to provide a dynamic performance testing platform of a hydrogen fuel cell engine and a method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme that the dynamic performance test platform of the hydrogen fuel cell engine comprises a base, wherein supporting rods are arranged on the periphery of the top of the base, and a control console is arranged on the back of the base;
the vibration plate comprises a base, and is characterized in that limiting rods are arranged on two sides of the top of the base, two joining rods are arranged on two sides of the top of the base and located on the inner sides of the limiting rods, positioning rings are sleeved on the outer surfaces of the limiting rods, limiting plates are arranged on the inner sides of the positioning rings, two groups of sliding tubes are slidably connected to the outer surfaces of the joining rods, positioning tubes are sleeved on the outer surfaces of the positioning tubes, a driving plate is arranged on the outer surfaces of the positioning tubes, a cylinder assembly is installed on the outer side of the driving plate in an embedded mode, an air pressure rod assembly is installed at the output end of the cylinder assembly, a limiting clamping plate is connected to the front end of the air pressure rod assembly, a first vibration acceleration sensor is installed on the inner wall of the limiting clamping plate in an embedded mode, two groups of second vibration acceleration sensors are installed on the top of the supporting rods in a symmetrical distribution mode, a limiting cover is clamped on the top of the transverse plate, first telescopic rod assemblies are arranged around the bottom of the limiting cover, a fixing plate assembly is connected to the front end of the first telescopic rod assembly, a fixing plate is connected to the fixing plate in an equidistant mode, a plurality of groups of second telescopic rod assemblies are arranged on the bottom of the fixing plate, a third vibration acceleration sensor is arranged in the base, and a third telescopic rod assembly is arranged in the second telescopic rod assembly; the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor are used for obtaining the change of induction values and obtaining the vibration amplitude interval of the hydrogen fuel cell engine during working through the change of the induction values.
Preferably, two sets of servo motors are installed to one side of base, two-way lead screw is installed to servo motor's output, the front end of two-way lead screw rotate connect in the inner wall of base, the equal threaded connection of surface of two-way lead screw has the slurcam, the slurcam top is rotated and is connected with the deflector, the top of deflector is rotated and is connected with and places the board, the bottom of slurcam is provided with limit slide, the spacing spout of multiunit symmetric distribution is seted up to the inner bottom wall of base, just limit slide sliding block sliding connection in the inside of spacing spout.
Preferably, an engagement slider is arranged on the inner wall of the sliding tube and is slidably connected to the inner wall of the engagement rod, a sliding plate is connected to the front end of the engagement slider and is slidably connected to the inside of the engagement tube, a third telescopic rod assembly is mounted at the front end of the second vibration acceleration sensor, a limiting spring is arranged inside the third telescopic rod assembly, and the front end of the third telescopic rod assembly is connected to the top of the sliding plate.
Preferably, two sets of fourth telescopic rod assemblies are installed on the inner side of the limiting plate, and the front ends of the fourth telescopic rod assemblies are connected to the outer side of the limiting clamping plate.
Preferably, the back of control cabinet is provided with control panel, just the control cabinet with be electric connection between first vibration acceleration sensor, second vibration acceleration sensor and the third vibration acceleration sensor.
Preferably, the periphery of the bottom of the limiting cover is provided with an inserting block, the inserting block is inserted into the transverse plate, the outer surface of the transverse plate is in threaded through connection with a fixing bolt, and the front end of the fixing bolt is in threaded connection with the inside of the inserting block.
Preferably, two sets of symmetric distribution the connecting rod is installed to the inner wall of diaphragm, the drive seat is installed at the top of spacing lid, two sets of power sockets are installed, two sets of to the top gomphosis of drive seat electric telescopic handle is all installed to the output of power socket, just electric telescopic handle's front end connect in the top of fixed plate.
Preferably, the middle part of two-way lead screw surface has cup jointed solid fixed ring, gu fixed ring's bottom connect in the interior diapire of base, gu fixed ring's top is installed the fifth telescopic link subassembly, just the top of fifth telescopic link subassembly connect in place the bottom of board.
Preferably, the working steps of the test platform are as follows:
s1, placing a tested hydrogen fuel cell engine on the top of a placing plate, clamping and installing a limiting cover through an inserting block, and limiting and fixing the clamped limiting cover through a fixing bolt; placing a hydrogen fuel cell engine and closing a limiting cover, controlling a cylinder assembly to push a limiting clamp plate to clamp and position the hydrogen fuel cell engine on a placing plate, after the limiting cover is installed, driving a power supply seat in a driving seat to drive an electric telescopic rod to work, so that the electric telescopic rod pushes a fixing plate and a pressing plate to be in contact with the top of the hydrogen fuel cell engine, positioning the position of the hydrogen fuel cell engine by matching with the limiting clamp plate, and feeding back vibration generated during working of the hydrogen fuel cell engine to a positioning structure comprising the pressing plate and the limiting clamp plate after the hydrogen fuel cell engine is positioned;
s2, after a servo motor on the base is electrified, the output end of the servo motor drives the two-way screw rod to rotate, the pushing plate on the two-way screw rod slides in the limiting sliding groove in a limiting manner through the limiting sliding block at the bottom of the pushing plate, and due to the fact that the two threads on the surface of the two-way screw rod are different in orientation, the two groups of pushing plates are driven to move relatively through the rotation of the two-way screw rod;
s3, after the hydrogen fuel cell engine is clamped by the limiting clamping plate, the positioning pipe and the sliding pipe on the connecting rod can slide, so that when the limiting clamping plate is influenced by the work of the hydrogen fuel cell engine, the positioning ring slides on the limiting rod to play an auxiliary role in the movement of the limiting plate, and when the positioning pipe moves under the driving of the hydrogen fuel cell engine, the sliding plate is driven at the same time;
s4, the limiting cover is clamped with the transverse plate through the inserting block at the bottom of the limiting cover, the base is box-shaped, the plate is placed in a matching mode to bear the hydrogen fuel cell engine, the test is placed, and the limiting cover is adaptive to different types of hydrogen fuel cell engines.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uploads the change of the induction value to the console through the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor, and the range of the vibration amplitude of the hydrogen fuel cell engine during working is reflected through the magnitude of the change of the pressure value so as to finish the test work of the device; and the multiple data of the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor are measured, so that the accuracy of test data is guaranteed, and the adaptive mounting structure is selected when the hydrogen fuel cell engine is mounted.
2. According to the invention, under the auxiliary action of the rotation of the guide plate and the flexibility of the fifth telescopic rod assembly, the lifting adjustment effect is realized on the position of the placing plate, the convenient clamping is realized on different hydrogen fuel cell engines by matching with the mobility of the limiting clamping plate, so that the clamping device is suitable for the clamping effect of the hydrogen fuel cell engines with different sizes, and the lifting adjustment is realized on the position of the placing plate, so that the vibration influence of the hydrogen fuel cell engine during working is more attached to the first vibration acceleration sensor, the second vibration acceleration sensor and the third vibration acceleration sensor, and the applicability of the device is increased.
3. According to the invention, through the arrangement of the limiting spring in the third telescopic rod component, under the action of the resilience of the limiting spring, the movement of the third telescopic rod component can be buffered and limited, and then the movement of the sliding plate is buffered to a certain extent, so that the collision influence of the movement of the connecting pipe inner structure is avoided.
4. According to the invention, the structure of the limiting cover is convenient to disassemble and assemble, the whole device can be disassembled and separated through disassembling the limiting cover, the device is convenient to transport due to disassembling the structure, and meanwhile, the structure is stable, so that the influence of shaking of the hydrogen fuel cell engine during working is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a support bar according to the present invention;
FIG. 3 is a schematic view of a stop cover according to the present invention;
FIG. 4 is a schematic view of a stop lever according to the present invention;
FIG. 5 is a schematic cross-sectional view of a joint rod structure according to the present invention;
FIG. 6 is a schematic cross-sectional view of a driving plate structure according to the present invention;
FIG. 7 is a schematic sectional view of the driving seat structure of the present invention;
FIG. 8 is a schematic cross-sectional view of the base structure of the present invention;
FIG. 9 is a side view of the console of the present invention.
In the figure: 1. a base; 2. a support bar; 3. a console; 4. a limiting rod; 5. a connecting rod; 6. a positioning ring; 7. a limiting plate; 8. a sliding tube; 9. a positioning tube; 10. a drive plate; 11. a cylinder assembly; 12. a gas lever assembly; 13. a limiting clamp plate; 14. a first vibration acceleration sensor; 15. a second vibration acceleration sensor; 16. a transverse plate; 17. a limiting cover; 18. a first telescopic rod assembly; 19. a fixing plate; 20. a second telescopic rod assembly; 21. a third vibration acceleration sensor; 22. pressing the plywood; 23. a servo motor; 24. a bidirectional screw rod; 25. a push plate; 26. a guide plate; 27. placing the plate; 28. a limiting slide block; 29. a limiting chute; 30. connecting the sliding blocks; 31. a sliding plate; 32. a third telescopic rod assembly; 33. a limiting spring; 34. a fourth telescopic rod assembly; 35. a control panel; 36. an insertion block; 37. fixing the bolt; 38. a connecting rod; 39. a driving seat; 40. a power supply base; 41. an electric telescopic rod; 42. a fixing ring; 43. a fifth telescoping rod assembly.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 9, a hydrogen fuel cell engine dynamic performance testing platform;
the vibration acceleration sensor comprises a base 1, supporting rods 2 are arranged on the periphery of the top of the base 1, a control console 3 is arranged on the back of the base 1, limiting rods 4 are arranged on two sides of the top of the base 1, connecting rods 5 are arranged on two sides of the top of the base 1, the connecting rods 5 are located on the inner sides of the limiting rods 4, positioning rings 6 are sleeved on the outer surfaces of the limiting rods 4, limiting plates 7 are arranged on the inner sides of the positioning rings 6, two groups of sliding tubes 8 are connected on the outer surfaces of the connecting rods 5 in a sliding mode, positioning tubes 9 are connected at the front ends of the sliding tubes 8 and are sleeved on the outer surfaces of the connecting rods 5, a driving plate 10 is arranged on the outer surface of each positioning tube 9, a cylinder assembly 11 is installed on the outer side of the driving plate 10 in an embedded mode, an air pressure rod assembly 12 is installed at the output end of the cylinder assembly 11, a limiting clamp plate 13 is connected at the front end of the air pressure rod assembly 12, and a first vibration acceleration sensor 14 is installed on the inner wall of the limiting clamp plate 13 in an embedded mode, two sets of second vibration acceleration sensors 15 are mounted on the inner wall of the linking pipe 5, two sets of transverse plates 16 which are symmetrically distributed are mounted on the top of the supporting rod 2, a limiting cover 17 is clamped on the top of the transverse plates 16, first telescopic rod assemblies 18 are arranged on the periphery of the bottom of the limiting cover 17, a fixing plate 19 is connected to the front end of each first telescopic rod assembly 18, a plurality of sets of second telescopic rod assemblies 20 which are arranged at equal intervals are arranged on the bottom of the fixing plate 19, third vibration acceleration sensors 21 are arranged inside the second telescopic rod assemblies 20, pressed plates 22 are arranged on the bottom of the second telescopic rod assemblies 20, two sets of fourth telescopic rod assemblies 34 are mounted on the inner side of the limiting plate 7, the front ends of the fourth telescopic rod assemblies 34 are connected to the outer side of the limiting clamp plate 13, a control panel 35 is arranged on the back of the control console 3, and the control console 3 and the first vibration acceleration sensors 14, the second vibration acceleration sensor 15 and the third vibration acceleration sensor 21 are electrically connected, the inner walls of the two groups of symmetrically distributed transverse plates 16 are provided with connecting rods 38, the top of the limiting cover 17 is provided with a driving seat 39, the top of the driving seat 39 is embedded with two groups of power supply seats 40, the output ends of the two groups of power supply seats 40 are provided with electric telescopic rods 41, and the front ends of the electric telescopic rods 41 are connected to the top of the fixing plate 19;
first vibration acceleration sensor 14 carries out direct contact through spacing splint 13 and hydrogen fuel cell engine, vibration through hydrogen fuel cell engine during operation, the slip phenomenon of cooperation slip pipe 8 and registration arm 9, thereby drive the spacing slip that links up slider 30 and sliding plate 31, then drive the shrink activity of third telescopic link subassembly 32, the shrink influence through third telescopic link subassembly 32, then produce pressure feedback second vibration acceleration sensor 15, third vibration acceleration sensor 21 drives the shrink activity of second telescopic link subassembly 20 through the activity of pressfitting board 22, then through the shrink activity of the inner structure of second telescopic link subassembly 20, thereby extrude third vibration acceleration sensor 21, first vibration acceleration sensor 14, second vibration acceleration sensor 15 and third vibration acceleration sensor 21 upload the change of response number to control cabinet 3, through the size of pressure value change, the interval of the vibration amplitude of reaction hydrogen fuel cell engine during operation, with the test work of completion device, thereby the mounting structure who is equipped for hydrogen fuel cell engine's installation is suitable according to the test structure.
Referring to fig. 1, 2 and 8, a hydrogen fuel cell engine dynamic performance test platform;
two groups of servo motors 23 are installed on one side of a base 1, a bidirectional screw rod 24 is installed at the output end of each servo motor 23, the front end of each bidirectional screw rod 24 is rotatably connected to the inner wall of the base 1, the outer surface of each bidirectional screw rod 24 is in threaded connection with a pushing plate 25, the top of each pushing plate 25 is rotatably connected with a guide plate 26, the top of each guide plate 26 is rotatably connected with a placing plate 27, a limiting slide block 28 is arranged at the bottom of each pushing plate 25, a plurality of groups of limiting slide grooves 29 which are symmetrically distributed are formed in the inner bottom wall of the base 1, each limiting slide block 28 is slidably connected inside each limiting slide groove 29, a fixing ring 42 is sleeved in the middle of the outer surface of each bidirectional screw rod 24, the bottom of each fixing ring 42 is connected to the inner bottom wall of the base 1, a fifth telescopic rod assembly 43 is installed at the top of each fixing ring 42, and the top of each fifth telescopic rod assembly 43 is connected to the bottom of each placing plate 27;
after the servo motor 23 on the base 1 is electrified, the output end of the servo motor drives the bidirectional screw rod 24 to rotate; thereby the rotation of two-way lead screw 24 drives the horizontal relative motion of two sets of slurcam 25, thereby rotates and cooperates the flexible regulation that goes up and down to the position of placing board 27 of fifth telescopic link subassembly 43 through deflector 26, cooperates spacing splint 13 to carry out convenient centre gripping to different hydrogen fuel cell engines.
Referring to fig. 1, 2, 4 and 5, a dynamic performance testing platform of a hydrogen fuel cell engine;
the inner wall of the sliding pipe 8 is provided with a connecting slide block 30, the connecting slide block 30 is connected to the inner wall of the connecting rod 5 in a sliding manner, the front end of the connecting slide block 30 is connected with a sliding plate 31, the sliding plate 31 is connected to the inside of the connecting pipe 5 in a sliding manner, the front end of the second vibration acceleration sensor 15 is provided with a third telescopic rod assembly 32, a limiting spring 33 is arranged inside the third telescopic rod assembly 32, and the front end of the third telescopic rod assembly 32 is connected to the top of the sliding plate 31;
thereby the registration arm 9 has moved under the drive of hydrogen fuel cell engine and has driven sliding plate 31, through the resilience of spacing spring 33 in the third telescopic rod subassembly 32 to play certain cushioning effect to the activity of sliding plate 31, avoided the collision influence of the interior structure activity of adapter tube 5.
Referring to fig. 1, 2, 3 and 7, a dynamic performance testing platform for a hydrogen fuel cell engine;
the periphery of the bottom of the limiting cover 17 is provided with an inserting block 36, the inserting block 36 is inserted into the transverse plate 16, the outer surface of the transverse plate 16 is in threaded through connection with a fixing bolt 37, and the front end of the fixing bolt 37 is in threaded connection with the inside of the inserting block 36;
the hydrogen fuel cell engine is convenient to replace by disassembling the limit cover 17, and the transverse plate 16 is arranged on the support rod 2; and is horizontally connected with the connecting rod 38 and forms a right angle, so that the supporting and fixing effects are realized between the structures, and the influence of shaking of the hydrogen fuel cell engine during working is reduced.
The working steps of the test platform are as follows:
s1, a tested hydrogen fuel cell engine is arranged at the top of a placing plate 27, a limiting cover 17 is installed in a clamped mode through a clamping mode of an inserting block 36, the limiting cover 17 after clamping is limited and fixed through a fixing bolt 37, the hydrogen fuel cell engine is placed and the limiting cover 17 is closed, the air cylinder assembly 11 works to push and control the work of an air pressure rod assembly 12 and can be used for pushing a limiting clamping plate 13, the limiting clamping plate 13 clamps and positions the hydrogen fuel cell engine on the placing plate 27, the limiting cover 17 can drive an electric telescopic rod 41 to work through the arrangement of a power supply seat 40 in a driving seat 39 after being installed, the fixing plate 19 and a pressing plate 22 are pushed to be in contact with the top of the hydrogen fuel cell engine, the position of the hydrogen fuel cell engine is located through the limiting clamping plate 13, and when the hydrogen fuel cell engine works, vibration generated during working is fed back to the pressing plate 22, the limiting clamping plate 13 and other locating structures;
s2, after the servo motor 23 on the base 1 is electrified, the output end of the servo motor drives the two-way screw rod 24 to rotate, the pushing plates 25 on the two-way screw rod 24 slide in the limiting sliding grooves 29 in a limiting mode through the limiting sliding blocks 28 at the bottom of the two-way screw rod, and due to the fact that the two threads on the surface of the two-way screw rod 24 are different in orientation, the two groups of pushing plates 25 are driven to move relatively through rotation of the two-way screw rod 24;
s3, after the hydrogen fuel cell engine is clamped by the limiting clamp plate 13, the positioning tube 9 and the sliding tube 8 on the connecting tube 5 can slide, so that when the limiting clamp plate 13 is influenced by the work of the hydrogen fuel cell engine, the positioning ring 6 slides on the limiting rod 4 to assist the movement of the limiting plate 7, and when the positioning tube 9 moves under the driving of the hydrogen fuel cell engine, the sliding plate 31 is also driven;
s4, when spacing lid 17 is through the joint between the grafting piece 36 and the diaphragm 16 of its bottom, for the dismantlement installation of spacing lid 17 increases the facility, base 1 is box-like, and the cooperation is placed board 27 and is born the hydrogen fuel cell engine, places the test, to the hydrogen fuel cell engine of different models, carries out convenient the changing to spacing lid 17.
The working principle is as follows:
the first vibration acceleration sensor 14 is in direct contact with the hydrogen fuel cell engine through a limiting clamping plate 13, through vibration of the hydrogen fuel cell engine during working, the sliding of the sliding pipe 8 and the positioning pipe 9 is matched, so that the limiting sliding of the connecting sliding block 30 and the sliding plate 31 is driven, then the contraction of the third telescopic rod assembly 32 is driven, through the contraction of the third telescopic rod assembly 32, the pressure is generated to be fed back to the second vibration acceleration sensor 15, the third vibration acceleration sensor 21 assembly drives the contraction movement of the second telescopic rod assembly 20 through the movement of the pressing plate 22, and the third vibration acceleration sensor 21 is extruded through the contraction of the internal structure of the second telescopic rod assembly 20; the first vibration acceleration sensor 14, the second vibration acceleration sensor 15 and the third vibration acceleration sensor 21 upload the change of the induction value to the console 3, and the vibration amplitude interval of the hydrogen fuel cell engine during working is acquired according to the magnitude of the change of the pressure value, so that the test work of the device is completed. After the servo motor 23 on the base 1 is electrified, the output end of the servo motor drives the two-way screw rod 24 to rotate, the push plate 25 on the two-way screw rod 24 slides in the limit sliding groove 29 in a limit way through the limit slide block 28 at the bottom of the push plate, then the guide plate 26 rotates, and under the combined action of the extension of the fifth telescopic rod component 43, the position of the placing plate 27 is adjusted in a lifting way, the convenient clamping on different hydrogen fuel cell engines is realized by matching with the movement of the limit clamping plate 13, when the positioning tube 9 moves under the driving of the hydrogen fuel cell engines, the sliding plate 31 is driven, and the sliding plate 31 is buffered by the resilience of the limit spring 33 in the third telescopic rod component 32, so that the impact influence of the structure movement in the connecting tube 5 is avoided, and the replacement of the hydrogen fuel cell engines is facilitated by disassembling the limit cover 17; the telescopic rod component consists of an upper rod and a lower rod, the upper rod can slide in the lower rod in a limiting manner, and the bottom of the upper rod is provided with a limiting clamping block, so that the bottom of the upper rod cannot completely slide out of the lower rod, and then the effect of freely adjusting the lifting is achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a hydrogen fuel cell engine dynamic behavior test platform, includes the base, its characterized in that: supporting rods are arranged on the periphery of the top of the base, and a control console is arranged on the back of the base;
the vibration acceleration sensor comprises a base, wherein limiting rods are arranged on two sides of the top of the base, connecting rods are arranged on two sides of the top of the base and located on the inner sides of the limiting rods, positioning rings are sleeved on the outer surfaces of the limiting rods, limiting plates are arranged on the inner sides of the positioning rings, two groups of sliding tubes are connected to the outer surfaces of the connecting rods in a sliding mode, the front ends of the sliding tubes are connected with positioning tubes, the positioning tubes are sleeved on the outer surfaces of the connecting rods, a driving plate is arranged on the outer surface of each positioning tube, an air cylinder assembly is installed on the outer side of the driving plate in an embedded mode, an air pressure rod assembly is installed at the output end of the air cylinder assembly, a limiting clamp plate is connected to the front end of the air pressure rod assembly, a first vibration acceleration sensor is installed on the inner wall of the limiting clamp plate in an embedded mode, two groups of second vibration acceleration sensors are installed on the inner wall of the linking rod, two groups of symmetrically distributed transverse plates are installed at the top of the supporting rod, a limiting cover is clamped at the top of each transverse plate, first telescopic rod assemblies are arranged on the periphery of the bottom of each limiting cover, a fixing plate is connected to the front end of each first telescopic rod assembly, a plurality of groups of second telescopic rod assemblies which are arranged at equal intervals are arranged at the bottom of each fixing plate, a third vibration acceleration sensor is arranged inside each second telescopic rod assembly, a pressing plate is arranged at the bottom of each second telescopic rod assembly, the first vibration acceleration sensors, the second vibration acceleration sensors and the third vibration acceleration sensors acquire the change of induction values, and the vibration amplitude interval of the hydrogen fuel cell engine during working is acquired through the change of the induction values; the inner wall of the sliding pipe is provided with a linking sliding block, the linking sliding block is connected to the inner wall of the linking rod in a sliding mode, the front end of the linking sliding block is connected with a sliding plate, the sliding plate is connected to the inside of the linking rod in a sliding mode, a third telescopic rod assembly is installed at the front end of the second vibration acceleration sensor, a limiting spring is arranged inside the third telescopic rod assembly, and the front end of the third telescopic rod assembly is connected to the top of the sliding plate.
2. The hydrogen fuel cell engine dynamic performance test platform of claim 1, wherein: two sets of servo motor are installed to one side of base, two-way lead screw is installed to servo motor's output, the front end of two-way lead screw rotate connect in the inner wall of base, the equal threaded connection of surface of two-way lead screw has the slurcam, the slurcam top is rotated and is connected with the deflector, the top of deflector is rotated and is connected with and places the board, the bottom of slurcam is provided with limit slide, the interior diapire of base has been seted up multiunit symmetric distribution's spacing spout, just limit slide sliding block sliding connection in the inside of spacing spout.
3. The hydrogen fuel cell engine dynamic performance test platform of claim 1, wherein: two sets of fourth telescopic rod subassemblies are installed to the inboard of limiting plate, just the front end of fourth telescopic rod subassembly connect in the outside of spacing splint.
4. The hydrogen fuel cell engine dynamic performance test platform of claim 1, wherein: the back of control cabinet is provided with control panel, just the control cabinet with be electric connection between first vibration acceleration sensor, second vibration acceleration sensor and the third vibration acceleration sensor.
5. The hydrogen fuel cell engine dynamic performance test platform of claim 1, wherein: the periphery of the bottom of the limiting cover is provided with an inserting block, the inserting block is inserted into the transverse plate, the outer surface of the transverse plate is in threaded through connection with a fixing bolt, and the front end of the fixing bolt is in threaded connection with the inside of the inserting block.
6. The hydrogen fuel cell engine dynamic performance test platform of claim 1, wherein: the connecting rod is installed to two sets of symmetric distribution the inner wall of diaphragm, the drive seat is installed at the top of spacing lid, two sets of power seats are installed to the top gomphosis of drive seat, and are two sets of electric telescopic handle is all installed to the output of power seat, just electric telescopic handle's front end connect in the top of fixed plate.
7. The hydrogen fuel cell engine dynamic performance test platform of claim 2, wherein: fixed ring has been cup jointed at the middle part of two-way lead screw surface, fixed ring's bottom connect in the interior diapire of base, the fifth telescopic link subassembly is installed at fixed ring's top, just the top of fifth telescopic link subassembly connect in place the bottom of board.
8. The test method of a platform for testing the dynamic performance of a hydrogen fuel cell engine according to any one of claims 1 to 7, characterized in that:
s1, placing a tested hydrogen fuel cell engine on the top of a placing plate, clamping and installing a limiting cover through an inserting block, and limiting and fixing the clamped limiting cover through a fixing bolt; placing a hydrogen fuel cell engine and closing a limiting cover, controlling a cylinder assembly to push a limiting clamp plate to clamp and position the hydrogen fuel cell engine on a placing plate, after the limiting cover is installed, driving a power supply seat in a driving seat to drive an electric telescopic rod to work, so that the electric telescopic rod pushes a fixing plate and a pressing plate to be in contact with the top of the hydrogen fuel cell engine, positioning the position of the hydrogen fuel cell engine by matching with the limiting clamp plate, and feeding back vibration generated during working to a positioning structure comprising the pressing plate and the limiting clamp plate when the hydrogen fuel cell engine works after the hydrogen fuel cell engine is positioned;
s2, after a servo motor on the base is electrified, the output end of the servo motor drives the two-way screw rod to rotate, the pushing plate on the two-way screw rod slides in the limiting sliding groove in a limiting manner through the limiting sliding block at the bottom of the pushing plate, and due to the fact that the two threads on the surface of the two-way screw rod are different in orientation, the two groups of pushing plates are driven to move relatively through the rotation of the two-way screw rod;
s3, after the hydrogen fuel cell engine is clamped by the limiting clamping plate, the positioning pipe and the sliding pipe on the connecting rod can slide, so that when the limiting clamping plate is influenced by the work of the hydrogen fuel cell engine, the positioning ring slides on the limiting rod to play an auxiliary role in the movement of the limiting plate, and when the positioning pipe moves under the driving of the hydrogen fuel cell engine, the sliding plate is driven at the same time;
s4, the limiting cover is clamped with the transverse plate through the inserting block at the bottom of the limiting cover, the base is box-shaped, the plate is placed in a matching mode to bear the hydrogen fuel cell engine, the test is placed, and the limiting cover is adaptive to different types of hydrogen fuel cell engines.
CN202211045113.4A 2022-08-30 2022-08-30 Hydrogen fuel cell engine dynamic performance test platform and method thereof Active CN115112377B (en)

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