CN212255604U - Electric assembly electromagnetic compatibility loading test bench placed in darkroom - Google Patents

Abstract

The utility model discloses a place electronic assembly electromagnetic compatibility loading test bench in darkroom, including big base, dynamometer machine, shield cover, synchronous pulley and hold-in range, ball cage shaft coupling, the dynamometer machine is installed on big base, and the dynamometer machine output shaft passes through insulating elastic coupling and connects the band pulley axle, drives two sections hold-in ranges and rotates, and the band pulley axle of last hold-in range passes through insulating elastic coupling and connects ball cage shaft coupling, frock axle and passes to electronic assembly with power, and the test bench left and right sides power source structure mirror symmetry, the electronic assembly of awaiting measuring is by being supported fixedly by test piece installation version and frock support to install under frock bottom plate and the frock on the base, last unified fixing is on big base. The utility model discloses place the loaded power supply in the suggestion, can simulate the load test of 3000rpm, 1000 Nm's dual output axle under the electronic assembly real vehicle operating mode, solve the transmission axle wall-piercing problem of traditional test bench loading power supply outside the darkroom.

Description

Electric assembly electromagnetic compatibility loading test bench placed in darkroom

Technical Field

The utility model relates to an electronic assembly electromagnetic compatibility loading test bench field, concretely relates to electronic assembly electromagnetic compatibility loading test bench of electric automobile.

Background

In the electromagnetic compatibility loading test of the electric assembly, the traditional test bed considers the electromagnetic interference of a loading power source and reduces the reflection surface factor during the test, places the loading power source outside a darkroom, and transmits power into the darkroom through a long shaft penetrating through a shielding wall body of the darkroom for the electromagnetic compatibility loading test of the electric assembly. The distance between the tested piece and the top of the wave-absorbing material on the wall of the darkroom needs to be equal to 1000mm, so that the length of a power shaft penetrating through the wall is required to be longer, the electromagnetic shielding problem also needs to be considered at the wall penetrating position of the shielding wall, and the strength problem required by the wall penetrating shaft when large torque is transmitted is caused, so that the scheme has the disadvantages of complex structure, high manufacturing cost, difficult installation and maintenance and relatively fixed position. Especially, when output shafts at two ends of the electric assembly are loaded, two sets of loading power sources outside the darkroom are needed, the cost is greatly increased, and the long shaft needs to transversely penetrate through the whole darkroom and cannot adapt to a larger darkroom.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a place electronic assembly electromagnetic compatibility loading test bench in darkroom, can solve traditional test bench owing to need satisfy by test piece and darkroom wall on the top apart from the requirement that the big equal to 1000mm of absorbing material, consequently, the power shaft length of requiring to wear the wall is longer, the electromagnetic shield problem still needs to be considered to the department of wearing the wall of shielding wall body simultaneously, required intensity problem when wearing the wall shaft transmission large torque, lead to this scheme structure complicated, the cost is expensive, installation and maintenance difficulty, and the position relatively fixed is motionless. Especially, when output shafts at two ends of the electric assembly are loaded, two sets of loading power sources outside the darkroom are needed, the cost is greatly increased, and the long shaft needs to transversely penetrate through the whole darkroom and cannot adapt to a larger darkroom.

The purpose of the utility model can be realized by the following technical scheme:

an electric assembly electromagnetic compatibility loading test bench placed in a darkroom comprises a large base, a dynamometer, a shielding cover, a synchronous belt wheel, a synchronous belt and a ball cage coupler, wherein the dynamometer is installed on the large base, the dynamometer is completely covered by the shielding cover, a conductive brush is installed on an output shaft of the dynamometer and is connected with the shielding cover, an arched lower base is covered above the shielding cover of the dynamometer, the bottom of the lower base is fixed on the large base, a middle base is installed on the lower base, an insulating shock pad is installed between the middle base and the lower base, a middle bearing seat and an upper base are installed on the lower base, and a driven bearing seat and a coupler bearing seat are installed on the upper base; the dynamometer output shaft is connected with a belt wheel shaft through an insulating elastic coupling, the belt wheel shaft is provided with a synchronous belt wheel and supported by a belt wheel bearing seat, the synchronous belt wheel is connected with a first intermediate belt wheel through a synchronous belt, the first intermediate belt wheel and a second intermediate belt wheel are arranged on the same shaft and supported by an intermediate shaft bearing seat, the second intermediate belt wheel is connected with a driven belt wheel through a driven synchronous belt, the driven belt wheel is arranged on the driven belt wheel shaft and supported by a driven shaft bearing seat, a synchronous belt shielding cover completely covers two sections of synchronous belts, the driven belt wheel shaft is connected with a coupling bearing seat through the insulating elastic coupling, an insulating shock pad is arranged at the bottom of the coupling bearing seat, the coupling bearing seat is sequentially connected with a ball cage coupling, a tooling shaft and an electric assembly, power source structures loaded for the two output shafts of the electric assembly are in mirror, the tool support is supported and fixed, a tool bottom plate and a tool lower base are sequentially installed at the bottom of the tool support, an insulating shock pad is installed between the tool lower base and the tool bottom plate, the tool lower base is fixed on the large base, the middle base, the tool bottom plate and the elevated floor are parallel and level, the structure below the middle base and the tool bottom plate is located below the elevated floor, and the structure above is located above the elevated floor.

Preferably, the dynamometer is mounted on the large base, the dynamometer is completely covered by the shielding case, and the dynamometer is completely enclosed in the electrically connected space by mounting the conductive brush connected with the shielding case on the output shaft of the dynamometer.

Preferably, the arched door-shaped lower base crosses over the dynamometer and the shielding case, is arranged on the large base, is provided with the middle base, and is provided with the insulating shock pad between the dynamometer and the shielding case.

Preferably, the middle base is provided with a middle bearing seat and an upper base, and the upper base is provided with a driven bearing seat and a coupling bearing seat.

Preferably, the power of the dynamometer is transmitted to the driven pulley sequentially through the insulating elastic coupling, the pulley shaft, the synchronous pulley, the synchronous belt, the first intermediate pulley, the second intermediate pulley and the driven synchronous belt, shafts of all the mounted pulleys are supported by bearing seats, and a transmission chain of the synchronous belt can be completely covered by a shielding cover of the synchronous belt.

Preferably, the power of the driven pulley shaft is transmitted to the electric assembly sequentially through the insulating elastic coupling, the coupling bearing seat, the ball cage coupling and the tool shaft, the insulating shock absorption pad is mounted at the bottom of the coupling bearing seat, and the power source structures loaded by the two output shafts of the electric assembly are in mirror symmetry.

Preferably, a tool bottom plate and a tool lower base are sequentially arranged at the bottom of the tool support, and an insulating shock pad is arranged between the tool lower base and the tool bottom plate.

Preferably, the two sets of dynamometers, the shielding case, the lower base, the belt wheel bearing seat and the lower base of the tool are all arranged on the same large base.

Preferably, the middle base and the tooling bottom plate are flush with the raised floor, and the structures below the middle base and the tooling bottom plate are located below the raised floor, and the structures above are located above the raised floor. For a darkroom with smaller space under the raised floor, a single-section flat-laying scheme can be adopted, and a dynamometer, a large base and the like under the raised floor are placed on the raised floor; for a darkroom with a basement, a lifting scheme can be adopted, and the whole test bed is placed on a lifting platform.

The utility model has the advantages that: the dynamometer is arranged on the large base, the dynamometer is completely covered by the shielding cover, the output shaft of the dynamometer is provided with the conductive brush connected with the shielding cover, the dynamometer is completely sealed in an electrically connected space, and the electromagnetic interference of the dynamometer can be shielded.

The dynamometer machine and the shield cover are striden across to arched door shape lower base to install on big base, can effectually save space, simultaneously, install middle base on the lower base, install insulating shock pad between the two, can guarantee the insulation between the two, the vibration on the base in the middle of the decay.

The middle base is provided with a middle bearing seat and an upper base, the upper base is provided with a driven bearing seat and a coupling bearing seat, namely, the middle base is integrated with the upper base, so that the installation and the maintenance are convenient.

The power of dynamometer loops through insulating elastic coupling, band pulley axle, synchronous pulley, hold-in range, middle band pulley one, middle band pulley two, driven hold-in range and passes to driven pulley, and all axles of installing the band pulley all have the bearing frame to support, and the hold-in range drive chain can be covered completely by the hold-in range shield cover, can further shield probably because of the electromagnetic interference of hold-in range static production.

The power of the driven pulley shaft is transmitted to the electric assembly through the insulating elastic coupler, the coupler bearing seat, the ball cage coupler and the tooling shaft in sequence, and the insulating shock pad is arranged at the bottom of the coupler bearing seat to keep the ball cage coupler and other parts electrically insulated so as to prevent electromagnetic interference; the power source structures loaded by the two output shafts of the electric assembly are in mirror symmetry, so that the design, production, installation and maintenance of the test bed are simplified, and the cost is reduced.

The bottom of the tool support is sequentially provided with the tool bottom plate and the lower tool base, and the insulating shock pad is arranged between the lower tool base and the tool bottom plate, so that the tested electric assembly is insulated from other parts, the electromagnetic interference is prevented, and meanwhile, the vibration of the electric assembly can be effectively realized.

Two sets of dynamometers, the shielding cover, the lower base, the belt wheel bearing seat and the lower base of the tool are all arranged on the same large base, so that the whole movement is convenient, the requirement on the foundation is low, and the leveling workload is low.

The middle base and the tooling bottom plate are parallel and level with the raised floor, the structure below the middle base and the tooling bottom plate is positioned below the raised floor, the structure above is positioned above the raised floor, when the electric assembly test is not carried out, the parts above the raised floor can be disassembled, and the raised floor is filled, so that the darkroom can be used for other purposes.

For a darkroom with smaller space under the raised floor, a single-section flat-laying scheme can be adopted, and a dynamometer, a large base and the like under the raised floor are placed on the raised floor; for the darkroom with the basement, a lifting scheme can be adopted, the whole test bed is placed on a lifting platform, the test bed is lifted to the raised floor when a test is carried out, the test bed is lowered to the position below the raised floor when the test is not carried out, and the darkroom can be used for other purposes.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a right side view of the present invention;

fig. 4 is a left side view of the present invention;

fig. 5 is a top view of the present invention;

FIG. 6 is a schematic view of the conductive brush of FIG. 2 according to the present invention;

fig. 7 is a schematic structural view of a single-end tiled scheme of the present invention;

FIG. 8 is a schematic view of the lifting scheme of the present invention;

in the figure: 1. a large base; 2. a dynamometer; 3. a pulley bearing seat; 4. a pulley shaft; 5. a synchronous pulley; 6. an insulating elastic coupling; 7. a conductive brush; 8. a shield case; 9. a synchronous belt; 10. a lower base; 11. a middle bearing seat; 12. a first intermediate belt wheel; 13. a second intermediate belt wheel; 14. a driven synchronous belt; 15. a driven pulley; 16. a synchronous belt shielding cover; 17. a driven bearing seat; 18. an upper base; 19. a coupling bearing seat; 20. a middle base; 21. an insulating shock pad; 22. a ball cage coupler; 23. an electric assembly; 24. a tooling shaft; 25. mounting a plate to be tested; 26. a tool support; 27. a tooling bottom plate; 28. a lower base of the tool; 29. a driven pulley shaft; 30. a raised floor; 31. a lifting platform.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-8, an electric assembly electromagnetic compatibility loading test bench placed in a darkroom comprises a large base 1, a dynamometer 2, a shielding cover 8, a synchronous pulley 5, a synchronous belt 9 and a ball cage coupler 22, wherein the dynamometer 2 is installed on the large base 1, the dynamometer 2 is completely covered by the shielding cover 8, a conductive brush 7 is installed on an output shaft of the dynamometer 2, the conductive brush 7 is connected with the shielding cover 8, an arched lower base 10 is covered above the shielding cover 8 of the dynamometer 2, the bottom of the lower base 10 is fixed on the large base 1, a middle base 20 is installed on the lower base 10, an insulating shock pad 21 is installed between the middle base 20 and the lower base 10, a middle bearing seat 11 and an upper base 18 are installed on the middle base 20, and a driven bearing seat 17 and a coupler bearing seat 19 are installed on the upper base 18; an output shaft of the dynamometer 2 is connected with a pulley shaft 4 through an insulating elastic coupling 6, the pulley shaft 4 is provided with a synchronous pulley 5, and is supported by a pulley bearing seat 3, a synchronous pulley 5 is connected with a first intermediate pulley 12 through a synchronous belt 9, the first intermediate pulley 12 and a second intermediate pulley 13 are arranged on the same shaft, and is supported by an intermediate bearing seat 11, an intermediate belt wheel 13 is connected with a driven belt wheel 15 through a driven synchronous belt 14, the driven belt wheel 15 is arranged on a driven belt wheel shaft 29, and is supported by a driven pulley bearing seat 17, a synchronous belt shielding cover 16 completely covers two sections of synchronous belts, a driven pulley shaft 29 is connected with a coupling bearing seat 19 through an insulating elastic coupling 6, an insulating shock pad 21 is arranged at the bottom of the coupling bearing seat 19, the coupler bearing seat 19 is sequentially connected with a ball cage coupler 22, a tool shaft 24 to an electric assembly 23, and power source structures loaded by two output shafts of the electric assembly 23 are in mirror symmetry; the electric assembly 23 is installed on a tested piece installation plate 25 and supported and fixed by a tool support 26, a tool bottom plate 27 and a tool lower base 28 are sequentially installed at the bottom of the tool support 26, an insulating shock absorption pad 21 is installed between the tool lower base 28 and the tool bottom plate 27, the tool lower base 28 is fixed on the large base 1, the middle base 20 and the tool bottom plate 27 are flush with the elevated floor 30, the structure below the middle base 20 and the tool bottom plate 27 is located below the elevated floor 30, and the structure above is located above the elevated floor 30.

The dynamometer 2 is installed on the large base 1, the dynamometer 2 is completely covered by the shielding cover 8, the output shaft of the dynamometer is provided with the conductive brush 7 connected with the shielding cover 8, the dynamometer 2 is completely sealed in an electrically connected space, and the electromagnetic interference of the dynamometer 2 can be shielded.

The dynamometer machine 2 and the shield cover 8 are striden over to arched door shape lower base 10 to install on big base 1, can effectually save space, simultaneously, install middle base 20 on the lower base 10, install insulating shock pad 21 between the two, can guarantee the insulation between the two, attenuate the vibration on the middle base 20.

The middle base 20 is provided with the middle bearing seat 11 and the upper base 18, the upper base 18 is provided with the driven bearing seat 17 and the coupling bearing seat 19, namely, the middle base 20 is integrated with the upper base, so that the installation and the maintenance are convenient.

The power of the dynamometer 2 is transmitted to the driven pulley 15 through the insulating elastic coupling 6, the pulley shaft 4, the synchronous pulley 5, the synchronous belt 9, the first intermediate pulley 12, the second intermediate pulley 13 and the driven synchronous belt 14 in sequence, all shafts for mounting the pulleys are supported by bearing seats, a synchronous belt transmission chain can be completely covered by a synchronous belt shielding cover 16, and the electromagnetic interference possibly generated by the static electricity of the synchronous belt can be further shielded.

The power of the driven pulley shaft 29 is transmitted to the electric assembly 23 through the insulating elastic coupling 6, the coupling bearing seat 19, the ball cage coupling 22 and the tool shaft 24 in sequence, the insulating shock pad 21 is arranged at the bottom of the coupling bearing seat 19, the ball cage coupling 22 and other parts are kept electrically insulated, and electromagnetic interference is prevented; the power source structures loaded by the two output shafts of the electric assembly 23 are in mirror symmetry, so that the design, production, installation and maintenance of the test bed are simplified, and the cost is reduced.

The bottom of the tool support 26 is sequentially provided with a tool bottom plate 27 and a tool lower base 28, and an insulating shock pad 21 is arranged between the tool lower base 28 and the tool bottom plate 27, so that the tested electric assembly 23 is insulated from other parts, the electromagnetic interference is prevented, and the vibration of the electric assembly 23 can be effectively realized.

Two sets of dynamometers 2, a shielding cover 8, a lower base 10, a belt wheel bearing seat 3 and a tooling lower base 28 are all arranged on the same large base 1, so that the whole movement is convenient, the requirement on the foundation is low, and the leveling workload is small.

The middle base 20 and the tooling bottom plate 27 are flush with the raised floor 30, the structures below the middle base 20 and the tooling bottom plate 27 are positioned below the raised floor 30, the structures above are positioned above the raised floor 30, when the test of the electric assembly 23 is not performed, the parts above the raised floor 30 can be disassembled, and the raised floor 30 is filled, so that the darkroom can be used for other purposes.

For a darkroom with a small space under the raised floor 30, a single-section flat-laying scheme (fig. 7) can be adopted, and the dynamometer 2, the large base 1 and the like under the raised floor 30 are placed on the raised floor 30; for a darkroom with a basement, a lifting scheme (figure 8) can be adopted, the whole test bed is placed on a lifting platform 31, the test bed is lifted to the raised floor 30 when a test is carried out, the test bed is lowered to the position below the raised floor 30 when the test is not carried out, and the darkroom can be used for other purposes.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. An electric assembly electromagnetic compatibility loading test bench placed in a darkroom comprises a large base (1), a dynamometer (2), a shielding cover (8), a synchronous pulley (5), a synchronous belt (9) and a ball cage coupler (22), and is characterized in that the dynamometer (2) is installed on the large base (1), the dynamometer (2) is completely covered by the shielding cover (8), a conductive brush (7) is installed on an output shaft of the dynamometer (2), the conductive brush (7) is connected with the shielding cover (8), an arched lower base (10) is covered above the shielding cover (8) of the dynamometer (2), the bottom of the lower base (10) is fixed on the large base (1), a middle base (20) is installed on the lower base (10), an insulating shock pad (21) is installed between the middle base (20) and the lower base (10), a middle bearing seat (11) and an upper base (18) are installed on the middle base (20), a driven bearing seat (17) and a coupling bearing seat (19) are arranged on the upper base (18);

an output shaft of the dynamometer (2) is connected with a pulley shaft (4) through an insulating elastic coupling (6), the pulley shaft (4) is provided with a synchronous pulley (5) and supported by a pulley bearing seat (3), the synchronous pulley (5) is connected with a first intermediate pulley (12) through a synchronous belt (9), the first intermediate pulley (12) and a second intermediate pulley (13) are arranged on the same shaft and supported by an intermediate bearing seat (11), the second intermediate pulley (13) is connected with a driven pulley (15) through a driven synchronous belt (14), the driven pulley (15) is arranged on a driven pulley shaft (29) and supported by a driven bearing seat (17), a synchronous belt shielding cover (16) completely covers two sections of synchronous belts, the driven pulley shaft (29) is connected with a coupling bearing seat (19) through the insulating elastic coupling (6), and the bottom of the coupling bearing seat (19) is provided with an insulating shock absorption pad (21), the coupling bearing seat (19) connects gradually ball cage coupling (22), frock axle (24) to electronic assembly (23), electronic assembly (23) are installed on by test piece mounting panel (25), it is fixed by frock support (26) support, frock bottom plate (27) are installed in proper order to frock support (26) bottom, frock bottom seat (28) under the frock, install insulating shock pad (21) between frock bottom seat (28) and frock bottom plate (27), frock bottom seat (28) are fixed on big base (1), middle base (20), frock bottom plate (27) and elevated floor (30) parallel and level, at middle base (20), the structure below frock bottom plate (27) is located elevated floor (30) below, at middle base (20), the structure more than frock bottom plate (27) is located elevated floor (30) top.

2. The electrodynamic assembly electromagnetic compatibility loading test bench placed in the darkroom of claim 1, wherein the power of the dynamometer (2) is transmitted to the driven pulley (15) through the insulating elastic coupling (6), the pulley shaft (4), the synchronous pulley (5), the first intermediate pulley (12), the second intermediate pulley (13) and the driven synchronous belt (14) in sequence, all shafts for mounting the pulleys are supported by bearing seats, and the synchronous belt transmission chain is completely covered by the synchronous belt shielding cover (16).

3. The electric assembly electromagnetic compatibility loading test bench placed in the darkroom of claim 1, wherein the power of the driven pulley shaft (29) is transmitted to the electric assembly (23) through the insulating elastic coupling (6), the coupling bearing seat (19), the ball cage coupling (22) and the tooling shaft (24) in sequence.

4. The electric assembly electromagnetic compatibility loading test bench placed in the darkroom of claim 1, wherein two sets of the dynamometer (2), the shielding case (8), the lower base (10), the pulley bearing seat (3) and the tooling lower base (28) are all arranged on the same large base (1).

5. The electric assembly electromagnetic compatibility loading test bench placed in the darkroom of claim 1, wherein for the darkroom with smaller space under the raised floor (30), a single-section flat-laying scheme is adopted, the dynamometer (2) below the raised floor (30) and the big base (1) are placed on the raised floor (30), and for the darkroom with a basement, a lifting scheme is adopted, and the whole test bench is placed on the lifting platform (31).

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