CN112505591A - Testing arrangement is used in simulation of direct current cable that fills - Google Patents
Testing arrangement is used in simulation of direct current cable that fills Download PDFInfo
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- CN112505591A CN112505591A CN202011520152.6A CN202011520152A CN112505591A CN 112505591 A CN112505591 A CN 112505591A CN 202011520152 A CN202011520152 A CN 202011520152A CN 112505591 A CN112505591 A CN 112505591A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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Abstract
The invention relates to the technical field of cables, and discloses a direct-current charging pile cable simulation use testing device which comprises a base, a stand column, a driving motor and a cable fixing device, wherein the driving motor is fixed at the bottom of the base, the output end of the driving motor is connected with a ball screw, a screw nut is connected to the ball screw in a threaded manner, a through strip-shaped groove is formed in the base, a support is connected to the base in a sliding manner through the strip-shaped groove, the bottom of the support is in sliding fit with the strip-shaped groove and penetrates through the strip-shaped groove to be connected with the screw nut, the stand column is fixed on the base, and the stand column and the support are respectively provided with the cable fixing device which is respectively used for. The invention has the advantages that the two ends of the charging cable can be well fixed, so that the fixing mode of the two ends of the charging cable simulates the mode in actual use, and then the charging cable can adapt to charging cables of different models.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a device for testing the simulated use of a direct current charging pile cable.
Background
The charging pile cable is an important carrier for realizing electric energy transmission and signal transmission in the charging process of the electric automobile. In filling electric pile cable in-service use, owing to receive the exogenic action, the cable is twisting constantly, is buckled, is twining constantly repeatedly, can lead to cable information sinle silk fracture like this to cause the consequence that can not realize normal charging. In order to ensure that the cable is not broken in the actual use process, the cable needs to simulate the actual use working condition so as to verify the reliability of the cable. For example, the national standard GB/T33594-. At present, cable manufacturers also use some experimental devices for simulation tests, and these devices mainly have the following disadvantages: the existing charging cables are various in model, but most of the testing devices can only be matched with and fix cables of several models, and most of the testing devices only fix the outer sheaths at two ends of the charging cable when fixing the charging cable, so that the power cable, the data cable and the control cable inside the charging cable are staggered when twisting the charging cable, and the testing structure is not true.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device for testing the simulation use of a direct current charging pile cable.
The purpose of the invention is realized by the following technical scheme: a cable simulation use testing device for a direct current charging pile comprises a base, a stand column, a driving motor and a cable fixing device, wherein the driving motor is fixed at the bottom of the base, the output end of the driving motor is connected with a ball screw, a screw nut is connected onto the ball screw in a threaded manner, a penetrating strip-shaped groove is formed in the base, a support is connected onto the base in a sliding manner through the strip-shaped groove, the bottom of the support is in sliding fit with the strip-shaped groove and is connected with the screw nut through the strip-shaped groove, the stand column is fixed onto the base, and the stand column and the support are respectively provided with the cable fixing device which is respectively used for fixing two ends of a cable;
the cable fixing device comprises a fixing plate, a plurality of mounting holes are formed in the fixing plate, the mounting holes comprise a straight cylinder section, a conical section and a threaded section, the straight cylinder section, the conical section and the threaded section are sequentially arranged, the cable fixing device further comprises a fixing plug, external threads are arranged outside the fixing plug, a central through hole is formed in the fixing plug, the fixing plug is in threaded connection with the threaded section of the mounting holes, a plurality of sliding grooves are formed in the end face of one end of the fixing plug, the sliding grooves are radially and uniformly distributed in the center of the fixing plug, the cable fixing device further comprises a clamping block, one end of the clamping block is in sliding fit with the sliding grooves, the clamping block is wedge-shaped, and the bevel edge of the clamping block is matched with the bevel angle of;
the cable fixing device further comprises a fixing sleeve, the fixing sleeve is of a hollow structure, the fixing plate is fixed at one end of the fixing sleeve, an inner hole at the other end of the fixing sleeve is provided with a second straight cylinder section, a second conical section and a second thread section, the second conical section and the second straight cylinder section are sequentially arranged, the second conical section and the second thread section are in step transition, the fixing sleeve is internally provided with a pressing block in a sliding mode, a through hole is formed in the middle of the pressing block, a plurality of sliding grooves are formed in the end face of one end of the pressing block and are radially and uniformly distributed in the center of the pressing block, the cable fixing device further comprises a clamping block, the clamping block is in sliding fit with the sliding grooves, the clamping block is wedge-shaped, and the bevel edge of the clamping block is attached to the; the outer side of the other end of the pressing block is provided with an annular boss, the pressing block is sleeved with a pressure spring, one end of the pressure spring is abutted to the step, the other end of the pressure spring is abutted to the annular boss, the fixed sleeve is connected with an end cover through a second thread section in a threaded mode, and a through hole is formed in the end cover.
Specifically, the spout be T type groove, the one end of fixture block be provided with the slider that matches with T type groove, slider and T type groove sliding fit.
Specifically, T type inslot be provided with reset spring, reset spring's one end is fixed in T type inslot, the other end with the slider butt.
Specifically, the sliding tray be T type groove, the one end of pressing from both sides tight piece be provided with the sliding block that matches with the sliding tray, sliding block and sliding tray sliding fit.
Specifically, the sliding groove in be provided with second reset spring, second reset spring's one end is fixed in the sliding groove, the other end with the sliding block butt.
Specifically, the fixed sleeve is externally provided with a connecting flange, and the upright post is connected with the cable fixing device through the connecting flange.
Specifically, the support top be provided with the motor, the output of motor is connected with screw-nut pair, screw-nut pair's lead screw rotates and sets up on the support, be provided with the slide rail on the support, it is provided with the mount pad to slide on the slide rail, the mount pad is connected with screw-nut pair's nut, cable fixing device sets up on the mount pad, the motor drives the mount pad and removes along perpendicular to ball screw's direction.
Specifically, the mount pad on be provided with the second motor, the output of second motor is connected with drive gear, be connected with driven gear on the flange of fixed cover, drive gear and driven gear meshing, fixed cover passes through the bearing frame to be fixed on the mount pad.
Specifically, a plurality of protruding blocks are arranged on the inner side of the clamping block.
The invention has the following advantages:
1. according to the invention, two ends of the charging cable are fixed through the cable fixing devices, the power cable, the data cable and the control cable in the charging cable are fixed through the fixing plate during fixing, the fixing plate can fix the power cable, the data cable or the control cable with different diameters during fixing, the adaptability is strong, and then the outer sheath of the charging cable is fixed by screwing the end cover.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the top structure of the support of the present invention;
FIG. 4 is a schematic view of a fixing plate according to the present invention;
FIG. 5 is a schematic view of an assembly structure of the fixing plate and the fixing plug of the present invention;
FIG. 6 is a schematic view of a fixing plug according to the present invention;
FIG. 7 is a diagram illustrating a fixture block structure according to the present invention;
FIG. 8 is a schematic view of the cable fixture device of the present invention;
FIG. 9 is an enlarged view of the structure at B in FIG. 8;
FIG. 10 is a schematic view of a compact of the present invention;
FIG. 11 is a schematic view of a clamping block of the present invention;
in the figure: 1-base, 2-drive motor, 3-ball screw, 4-screw nut, 5-column, 6-cable fixing device, 7-charging cable, 8-support, 9-slide rail, 11-second motor, 12-driven gear, 13-mounting seat, 14-screw, 15-nut, 16-motor, 17-drive gear, 18-fixing plate, 19-end cap, 20-pressing block, 21-pressure spring, 23-connecting flange, 24-mounting hole, 25-sliding groove, 26-fixing plug, 27-sliding groove, 28-clamping block, 29-sliding block, 30-clamping block, 31-sliding block, 32-bulge block, 33-reset spring, 34-second reset spring, 35-fixing sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1 to 11, a testing device for simulating use of a cable of a direct current charging pile comprises a base 1, a stand column 5, a driving motor 2 and a cable fixing device 6, wherein the driving motor 2 is fixed at the bottom of the base 1, the output end of the driving motor 2 is connected with a ball screw 3, the ball screw 3 is in threaded connection with a screw nut 4, a through strip-shaped slot is formed in the base 1, a support 8 is slidably connected to the base 1 through the strip-shaped slot, the bottom of the support 8 is in sliding fit with the strip-shaped slot and is connected with the screw nut 4 through the strip-shaped slot, the stand column 5 is fixed on the base 1, and the stand column 5 and the support 8 are both provided with the cable fixing device 6 for fixing two ends of the cable;
the cable fixing device 6 comprises a fixing plate 18, a plurality of mounting holes 24 are formed in the fixing plate 18, the mounting holes 24 comprise a straight cylinder section, a conical section and a threaded section, the straight cylinder section, the conical section and the threaded section are sequentially arranged, the cable fixing device 6 further comprises a fixing plug 26, external threads are arranged outside the fixing plug 26, a central through hole is formed in the fixing plug 26, the fixing plug 26 is in threaded connection with the threaded section of the mounting holes 24, a plurality of sliding grooves 27 are formed in one end face of one end of the fixing plug 26, the sliding grooves 27 are radially and uniformly distributed in the center of the fixing plug 26, the cable fixing device further comprises a fixture block 28, one end of the fixture block 28 is in sliding fit with the sliding grooves 27, the fixture block 28 is wedge-shaped, and the inclined edge of the fixture block 28 is matched with the inclined angle of;
the cable fixing device 6 further comprises a fixing sleeve 35, the fixing sleeve 35 is of a hollow structure, the fixing plate 18 is fixed at one end of the fixing sleeve 35, an inner hole at the other end of the fixing sleeve 35 is provided with a second straight cylinder section, a second conical section and a second thread section, the second conical section and the second straight cylinder section are sequentially arranged, the second conical section and the second thread section are in step transition, a pressing block 20 is arranged in the fixing sleeve 35 in a sliding mode, a through hole is formed in the middle of the pressing block 20, a plurality of sliding grooves 25 are formed in the end face of one end of the pressing block 20, the plurality of sliding grooves 25 are radially and uniformly distributed in the center of the pressing block 20, the cable fixing device further comprises a clamping block 30, the clamping block 30 is in sliding fit with the sliding grooves 25, the clamping block 30 is wedge-shaped, and the inclined edge of the clamping block 30; the outer side of the other end of the pressing block 20 is provided with an annular boss, the pressing block 20 is sleeved with a pressure spring 21, one end of the pressure spring 21 is abutted to the step, the other end of the pressure spring 21 is abutted to the annular boss, the fixed sleeve 35 is connected with an end cover 19 through a second thread section in a threaded manner, and a through hole is formed in the end cover 19. Along with the development of electric automobiles, more and more electric automobile charging piles are arranged in cities, when the automobiles are charged, the charging cables 7 of the charging piles are connected to the automobiles to be charged, the charging cables 7 are frequently dragged and twisted when in use, so that certain requirements are provided for the use performance of the charging cables 7, the performance of the cables needs to be tested before the cables are put into use, the performance of the cables is ensured to meet the use requirements, generally, the charging cables 7 comprise three power cables, two control cables and one data cable, the diameters of the charging cables 7 in different models are different, and the diameters of the adopted power cables are also different, the testing device in the embodiment is provided with a cable fixing device 6 for adapting to the charging cables 7 in different models, and the cable fixing device 6 in the embodiment can fix the charging cables 7 in different diameters, when in use, both ends of a charging cable 7 to be tested are fixed on the cable fixing device 6, and then are fixed on the testing device through the cable fixing device 6 for testing, the fixing sleeve 35 in the embodiment is of a hollow straight-tube structure, so that the clamping block 30 is movably arranged on the pressing block 20 before use, then is put into the hollow cavity of the fixing sleeve 35 to enable the bevel edge of the clamping block 30 to be matched with the bevel edge of the second conical section of the fixing sleeve 35, then the end cover 19 is in threaded connection with the mounting sleeve, one end of the end cover 19 is pressed on the pressing block 20, and thus the bevel edge of the clamping block 30 is abutted against the bevel edge of the second conical section, because the center of the end cover 19 is provided with a through hole, one end of the charging cable 7 penetrates into the through hole and penetrates through the through hole of the pressing block 20 during fixing, then penetrates through the hollow cavity of the fixing sleeve 35 to the other end of the fixing sleeve 35, firstly, separating the power cable, the data cable and the control cable in the charging cable 7, and peeling off the outer sheath of one section of the charging cable 7 to separate the power cable, the data cable and the control cable; during testing, a scene in actual use needs to be simulated, so when the charging cable 7 is fixed, only the outside of the charging cable 7 cannot be fixed, and the internal power cable, data cable and control cable need to be fixed separately, if the outer sheath of the charging cable 7 is fixed only, the internal power cable, data cable and control cable may be dislocated when the charging cable 7 is twisted, which may cause damage to the power cable, data cable and control cable, so that an actual simulation effect cannot be achieved, and the tested result is not a real use result, therefore, in order to make the environment during testing as the same as the use environment as possible, the embodiment fixes the power cable, data cable and control cable on the fixing plate 18 after the charging cable 7 passes through the fixing sleeve 35, the fixing plate 18 is provided with a plurality of mounting holes 24, the plurality of mounting holes 24 have different apertures and respectively correspond to a power cable, a data cable and a control cable, when in use, the fixture block 28 is movably mounted on the fixing plug 26, then the fixing plug 26 is screwed in the thread section of the mounting hole 24, so that the bevel edge of the fixture block 28 is matched with the bevel edge of the conical section, then the power cable, the data cable or the control cable is penetrated into the corresponding mounting hole 24 and passes through the central through hole of the fixing plug 26, then the fixing plug 26 is rotated to screw the fixing plug 26 into the mounting hole 24, the fixture block 28 is driven to axially move along the mounting hole 24 when the fixing plug 26 is screwed into the mounting hole 24, due to the limitation of the conical section, the fixture block 28 can slide along the conical section when moving, so that the fixture block 28 can move to the center of the mounting hole 24 along the chute 27 under the limitation of the conical section, and due to the plurality of fixture blocks 28 arranged on the fixing plug, when the plurality of clamping blocks 28 move towards the center of the mounting hole 24, in this embodiment, four clamping blocks 28 are preferably arranged, four clamping blocks 28 are arranged in an annular array, when all four clamping blocks 28 move towards the center of the mounting hole 24, the area enclosed by the four clamping blocks 28 is reduced, and finally, the four clamping blocks 28 clamp the power cable, the data cable or the control cable which passes through until the clamping blocks 28 are clamped, so that the power cable, the data cable or the control cable can be fixed on the fixing plate 18, because the fixing plug 26 is in threaded connection with the mounting hole 24, the connection mode can ensure the connection stability, and the power cable, the data cable or the control cable is prevented from falling off, and a hexagonal head is arranged on the fixing plug 26, so that the fixing plug 26 can be fixed by a wrench sleeve; after the power cable, the data cable and the control cable are fixed, the fixing plate 18 needs to be fixed on the fixing sleeve 35, a connecting hole is formed in the fixing plate 18, a threaded connecting hole is formed in the end face of one end of the fixing sleeve 35, and the fixing plate 18 is connected to one end of the fixing sleeve 35 through a bolt; thus, the power cable, the data cable and the control cable are fixed on the fixing sleeve 35, then the outer sheath of the charging cable 7 needs to be fixed, the end cover 19 is rotated during fixing, the end cover 19 moves along the axial direction of the fixing sleeve 35, the end cover 19 pushes the pressing block 20 to move along the axial direction of the fixing sleeve 35 during moving, the pressing block 20 moves to enable the clamping block 30 to slide along the inclined plane of the second conical section of the fixing sleeve 35, the clamping block 30 moves towards the center of the pressing block 20 under the limiting of the second conical section when sliding along the second conical section, in the embodiment, four clamping blocks 30 are preferably arranged, the four clamping blocks 30 are arranged in an annular array, the diameter of the area enclosed when the four clamping blocks 30 move towards the center of the pressing block 20 is reduced, and the charging cable 7 is fixed on the fixing sleeve 35 until the area enclosed by the clamping blocks 30 is reduced to clamp the charging cable 7; then, two ends of a charging cable 7 are respectively fixed on an upright post 5 and a support 8 through a fixing sleeve 35, the upright post 5 is fixed on a base 1, the position of the upright post is not changed, one end of the charging cable 7 is fixed on the upright post 5, the fixed position of the charging cable is a certain height away from the top surface of the base 1, when the charging cable 7 is used, one end of the charging cable connected with a charging pile is mostly a certain height away from the ground, so that the charging cable is fixed on the upright post 5 to simulate a use scene, then the other end of the charging cable is fixed on the support 8, the same height is provided from the top of the base 1, when the charging cable 7 is used, the other section of the charging head of the charging cable 7 is connected on an automobile, the same height is provided from the ground, when a user moves, so that after the charging cable 7 is fixed on the support 8, a, threaded connection has screw-nut 4 on ball screw 3, screw-nut 4 is fixed in the bottom of support 8, set up the bar fluting sliding fit who puts on the bottom of support 8 and the base 1, ball screw 3 rotates like this and drives screw-nut along ball screw 3 removal, because the bar fluting is located ball screw 3's top, and with ball screw 3 parallel arrangement, ball screw 3 rotates just so and drives support 8 along the bar fluting removal, the scene that simulation user of service pulling charging cable 7 used, driving motor 2 just reverses and just can drive support 8 along the bar fluting round trip movement, the analog use, charging cable 7 drags on base 1 during round trip movement, can simulate the frictional wear of charging cable 7 and ground.
Further, the sliding groove 27 is a T-shaped groove, one end of the fixture block 28 is provided with a sliding block 29 matched with the T-shaped groove, and the sliding block 29 is in sliding fit with the T-shaped groove. In this embodiment, the end surface of the fixed plug 26 is provided with the radial sliding grooves 27, the sliding grooves 27 are not communicated with the central through hole of the fixed plug 26, preferably, four sliding grooves 27 are provided, the sliding block 29 provided on the fixture block 28 is a T-shaped structure matched with a T-shaped groove, and the fixture block 28 can move along the sliding grooves 27 and move towards the axis of the fixed plug 26 when the sliding block 29 and the sliding grooves 27 are matched and mounted.
Further, a return spring 33 is arranged in the T-shaped groove, one end of the return spring 33 is fixed in the T-shaped groove, and the other end of the return spring is abutted to the sliding block 29. In this embodiment, a T-shaped groove is radially formed in the side wall of the fixing plug 26, the return spring 33 is disposed in the T-shaped groove, when the latch 28 moves along the T-shaped groove, the return spring 33 is compressed, and when the power cable, the data cable, or the control cable needs to be removed, the fixing plug 26 is unscrewed, at this time, the latch 28 moves to the outside of the fixing plug 26 along the sliding groove 27 under the restoring force of the return spring 33, at this time, the area surrounded by the plurality of latches 28 is increased, the power cable, the data cable, or the control cable is loosened, and the power cable, the data cable, or the control cable can be pulled out of the mounting hole 24.
Further, the sliding groove 25 is a T-shaped groove, one end of the clamping block 30 is provided with a sliding block 31 matched with the sliding groove 25, and the sliding block 31 is in sliding fit with the sliding groove 25. In this embodiment, four sliding grooves 25 are preferably provided, a radial sliding groove 25 is provided on the end surface of the pressing block 20, the sliding groove 25 does not communicate with the through hole of the pressing block 20, the sliding block 31 provided on the clamping block 30 has a T-shaped structure matching with the T-shaped groove, and the clamping block 30 can move along the sliding groove 25 and move toward the axis of the pressing block 20 by the sliding block 31 and the sliding groove 25 being fitted.
Further, a second return spring 3433 is disposed in the sliding groove 25, one end of the second return spring 3433 is fixed in the sliding groove 25, and the other end of the second return spring 3433 abuts against the sliding block 31. In this embodiment, the sliding groove 25 is radially opened inward from the outer side wall of the pressing block 20, the second return spring 3433 is disposed in the sliding groove 25, when the clamping block 30 moves along the sliding groove 25, the second return spring 3433 is compressed, when the charging cable 7 needs to be removed, the end cap 19 is unscrewed, the clamping block 30 moves along the sliding groove 25 to the outside of the pressing block 20 under the restoring force of the second return spring 3433, at this time, the area enclosed by the plurality of clamping blocks 30 is increased, the charging cable 7 is loosened, and the charging cable 7 can be pulled out from the fixing sleeve 35.
Further, a connecting flange 23 is arranged outside the fixing sleeve 35, and the upright post 5 is connected with the cable fixing device 6 through the connecting flange 23.
Further, 8 tops of support be provided with motor 16, motor 16's output is connected with screw-nut pair, screw 14 that screw-nut is vice rotates and sets up on support 8, be provided with slide rail 9 on the support 8, it is provided with mount pad 13 to slide on the slide rail 9, mount pad 13 is connected with screw-nut pair's nut 15, cable fixing device 6 sets up on mount pad 13, motor 16 drives mount pad 13 and removes along the direction of perpendicular to ball screw 3. During testing, the motor 16 rotates to drive the screw rod 14 of the screw-nut pair to rotate, the screw rod 17 is arranged on the support 8 through the bearing seat, the screw rod rotates to drive the nut 15 of the screw-nut pair to rotate along the screw rod 14, then the nut 15 of the screw-nut pair drives the mounting seat 13 to move along the slide rail 9, the slide rail 9 is arranged in parallel with the screw rod 17 of the screw-nut pair, the slide rail is perpendicular to the ball screw 3, the motor 16 rotates forwards and backwards to drive the mounting seat 13 to reciprocate along the slide rail 9 to drive the charging cable 7 to swing, and the better simulation effect is achieved by matching with the driving.
Further, the mounting seat 13 on be provided with second motor 11, the output of second motor 11 is connected with drive gear 17, be connected with driven gear 12 on the flange 23 of fixed cover 35, drive gear 17 and driven gear 12 meshing, fixed cover 35 passes through the bearing frame to be fixed on mounting seat 13. In order to simulate the torsion scene of the charging cable 7 in use, in this embodiment, the second motor 11 is disposed on the mounting seat 13, and the second motor 11 drives the cable fixing device 6 to rotate to simulate the torsion of the charging cable 7, the driven gear 12 is disposed on the fixing sleeve 35, the driving gear 17 is disposed at the output end of the second motor 11, and the second motor 11 rotates to drive the cable fixing device 6 to rotate, so that the charging cable 7 can rotate.
In the embodiment, the output ends of the driving motor 2, the motor and the second motor 11 are all connected with a speed reducer.
Further, a plurality of protruding blocks 32 are disposed on the inner side of the clamping block 30. Because the diameter of the charging cable 7 is large, in order to enable the charging cable 7 to be fixed better, the protruding block 32 is arranged on the clamping block 30, so that the friction force between the clamping block 30 and the charging cable 7 when the clamping block 30 clamps the charging cable 7 is increased, and the fixing is more stable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (9)
1. The utility model provides a testing arrangement is used in simulation of direct current charging stake cable which characterized in that: the cable fixing device comprises a base (1), a stand column (5), a driving motor (2) and a cable fixing device (6), wherein the driving motor (2) is fixed at the bottom of the base (1), the output end of the driving motor (2) is connected with a ball screw (3), a screw nut (4) is in threaded connection with the ball screw (3), a through strip-shaped slot is formed in the base (1), the base (1) is in sliding connection with a support (8) through the strip-shaped slot, the bottom of the support (8) is in sliding fit with the strip-shaped slot and is connected with the screw nut (4) through the strip-shaped slot, the stand column (5) is fixed on the base (1), and the stand column (5) and the support (8) are respectively provided with the cable fixing device (6) which are respectively used for fixing two ends of a cable;
the cable fixing device (6) comprises a fixing plate (18), a plurality of mounting holes (24) are arranged on the fixing plate (18), the mounting hole (24) comprises a straight cylinder section, a conical section and a thread section, the straight cylinder section, the conical section and the thread section are sequentially arranged, the cable fixing device (6) further comprises a fixing plug (26), the outside of the fixed plug (26) is provided with external threads, the fixed plug (26) is provided with a central through hole, the fixed plug (26) is in threaded connection with the threaded section of the mounting hole, a plurality of sliding grooves (27) are formed in the end face of one end of the fixed plug (26), the sliding grooves (27) are radially and uniformly distributed in the center of the fixed plug (26), and the fixing device further comprises a clamping block (28), one end of the clamping block (28) is in sliding fit with the sliding groove (27), the clamping block (28) is wedge-shaped, and the inclined edge of the clamping block (28) is matched with the inclined angle of the conical section;
the cable fixing device (6) further comprises a fixing sleeve (35), the fixing sleeve (35) is of a hollow structure, the fixing plate (18) is fixed at one end of the fixing sleeve (35), a second straight cylinder section, a second conical section and a second thread section are arranged in an inner hole at the other end of the fixing sleeve (35), the second thread section, the second conical section and the second straight cylinder section are sequentially arranged, the second conical section and the second thread section are transited through a step, a pressing block (20) is slidably arranged in the fixing sleeve (35), a through hole is formed in the middle of the pressing block (20), a plurality of sliding grooves (25) are formed in the end face of one end of the pressing block (20) and are radially and uniformly distributed in the center of the pressing block (20), the clamping block (30) is slidably matched with the sliding grooves (25), and the clamping block (30) is wedge-shaped, the bevel edge of the clamping block (30) is attached to the bevel edge of the second conical section; the utility model discloses a pressure spring, including briquetting (20), briquetting (20) other end outside is provided with annular boss, the cover is equipped with pressure spring (21) on briquetting (20), the one end butt of pressure spring (21) is in on the step, other end butt is on annular boss, fixed cover (35) have end cover (19) through second screw thread section threaded connection, be provided with the perforation on end cover (19).
2. The device for testing the simulated use of the direct-current charging pile cable according to claim 1, characterized in that: the sliding groove (27) is a T-shaped groove, a sliding block (29) matched with the sliding groove (27) is arranged at one end of the clamping block (28), and the sliding block (29) is in sliding fit with the sliding groove (27).
3. The device for testing the simulated use of the direct-current charging pile cable according to claim 2, characterized in that: the sliding groove (27) is internally provided with a return spring (33), one end of the return spring (33) is fixed in the sliding groove (27), and the other end of the return spring is abutted to the sliding block (29).
4. The device for testing the simulated use of the direct-current charging pile cable according to claim 1, characterized in that: the sliding groove (25) is a T-shaped groove, a sliding block (31) matched with the sliding groove (25) is arranged at one end of the clamping block (30), and the sliding block (31) is in sliding fit with the sliding groove (25).
5. The device for testing the simulated use of the direct-current charging pile cable according to claim 4, characterized in that: and a second return spring (34) is arranged in the sliding groove (25), one end of the second return spring (34) is fixed in the sliding groove (25), and the other end of the second return spring is abutted against the sliding block (31).
6. The device for testing the simulated use of the direct-current charging pile cable according to claim 1, characterized in that: the fixed sleeve (35) is externally provided with a connecting flange (23), and the upright post (5) is connected with the cable fixing device (6) through the connecting flange (23).
7. The device for testing the simulated use of the direct-current charging pile cable according to claim 6, characterized in that: support (8) top be provided with motor (16), the output of motor (16) is connected with screw-nut pair, screw rod (14) that screw-nut is vice rotates and sets up on support (8), be provided with slide rail (9) on support (8), it is provided with mount pad (13) to slide on slide rail (9), mount pad (13) are connected with screw-nut pair nut (15), cable fixing device (6) set up on mount pad (13), motor (16) drive mount pad (13) and remove along the direction of perpendicular to ball screw (3).
8. The device for testing the simulated use of the direct-current charging pile cable according to claim 7, characterized in that: the mounting seat (13) on be provided with second motor (11), the output of second motor (11) is connected with drive gear (17), be connected with driven gear (12) on flange (23) of fixed cover (35), drive gear (17) and driven gear (12) meshing, fixed cover (35) are fixed on mounting seat (13) through the bearing frame.
9. The device for testing the simulated use of the direct-current charging pile cable according to claim 1, characterized in that: the inner side of the clamping block (30) is provided with a plurality of convex blocks (32).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520152.6A CN112505591B (en) | 2020-12-21 | 2020-12-21 | DC charging cable simulation use testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011520152.6A CN112505591B (en) | 2020-12-21 | 2020-12-21 | DC charging cable simulation use testing device |
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| CN112505591B CN112505591B (en) | 2023-06-06 |
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| WO2016065723A1 (en) * | 2014-10-30 | 2016-05-06 | 上海电缆研究所 | High frequency cable testing platform |
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| DE4400520C1 (en) * | 1994-01-07 | 1995-01-12 | Uwe Dr Rudorf | Test stand for carrying out alternating bending trials on flexible supply lines |
| CN2709993Y (en) * | 2004-07-14 | 2005-07-13 | 上海电缆研究所 | Cable holding device |
| CN201149607Y (en) * | 2007-09-11 | 2008-11-12 | 上海电缆研究所 | Apparatus for holding multiple line pair cables |
| WO2016065723A1 (en) * | 2014-10-30 | 2016-05-06 | 上海电缆研究所 | High frequency cable testing platform |
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