CN112505591B - DC charging cable simulation use testing device - Google Patents

DC charging cable simulation use testing device Download PDF

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Publication number
CN112505591B
CN112505591B CN202011520152.6A CN202011520152A CN112505591B CN 112505591 B CN112505591 B CN 112505591B CN 202011520152 A CN202011520152 A CN 202011520152A CN 112505591 B CN112505591 B CN 112505591B
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China
Prior art keywords
cable
sliding
fixing
fixed
block
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CN202011520152.6A
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Chinese (zh)
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CN112505591A (en
Inventor
王浩
张扬
王建明
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Chengdu Datang Cable Co ltd
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Chengdu Datang Cable Co ltd
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Publication of CN112505591A publication Critical patent/CN112505591A/en
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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
    • 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
    • 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
    • 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention relates to the technical field of cables, in particular to a test device for simulating the use of a direct-current charging pile cable, 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, the ball screw is connected with a screw nut in a threaded manner, a penetrating strip-shaped slot is formed in the base, a support is connected to the base in a sliding manner through the strip-shaped slot, the bottom of the support is in sliding fit with the strip-shaped slot and is connected with the screw nut through the strip-shaped slot, the stand column is fixed on the base, and the stand column and the support are respectively provided with a cable fixing device for fixing two ends of the cable. The invention has the advantages that the two ends of the charging can be well fixed, the two ends of the charging cable can be fixed in a mode simulating the mode in actual use, and then the invention can be suitable for charging cables of different types.

Description

DC charging cable simulation use testing device
Technical Field
The invention relates to the technical field of cables, in particular to a test device for simulating the use of a DC 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 the actual use process of the charging pile cable, the cable is always repeatedly twisted, bent and wound under the action of external force, so that the cable information wire core is broken, and the normal charging cannot be realized. 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, national standard GB/T33594-2017 'electric vehicle charging Cable' specifies that reliability of a cable signal wire core is verified through two tests of deflection and swinging. Currently, cable manufacturers also use some test equipment for performing the simulation test, and these equipment mainly have the following disadvantages: the current charging cable's model is various, but most testing arrangement only can match the cable of fixed several models, and the oversheath at charging cable both ends is only fixed to most testing arrangement when fixed charging cable, can cause like this and produce dislocation when torsion charging cable inside power cable, data cable and control cable, cause the structure of test unreal.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a test device for simulating the use of a DC charging pile cable.
The aim of the invention is achieved by the following technical scheme: the utility model provides a DC fills electric pile cable simulation and uses testing arrangement, includes base, stand, driving motor and cable fixing device, driving motor fix in the bottom of base, driving motor's output is connected with ball screw, threaded connection has screw-nut on the ball screw, set up the bar fluting that runs through on the base, the base on have the support through bar fluting sliding connection, the bottom and the bar fluting sliding fit of support and pass bar fluting and be connected with screw-nut, the stand is fixed on the base, all be provided with a cable fixing device on stand and the support, be used for the both ends of fixed cable respectively;
the cable fixing device comprises a fixing plate, a plurality of mounting holes are formed in the fixing plate, each mounting hole comprises a straight barrel section, a conical section and a threaded section, the straight barrel section, the conical section and the threaded section are sequentially arranged, the cable fixing device further comprises a fixing plug, external threads are arranged on the outer portion of the fixing plug, the fixing plug is provided with a central through hole, the fixing plug is in threaded connection with the threaded section of the mounting hole, a plurality of sliding grooves are formed in the end face of one end of the fixing plug, the sliding grooves are uniformly distributed in the center of the fixing plug in a radial mode, a clamping block is further arranged, one end of the clamping block is in sliding fit with the sliding grooves, the clamping block is in a wedge shape, and the inclined edges of the clamping block are matched with the inclined surfaces of the conical section;
the cable fixing device further comprises a fixing sleeve which is of a hollow structure, the fixing plate is fixed at one end of the fixing sleeve, 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, 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 in step transition, a pressing block is arranged in the fixing sleeve 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, the sliding grooves are uniformly distributed in a radial mode in the center of the pressing block, the clamping block is in sliding fit with the sliding grooves, the clamping block is wedge-shaped, and the inclined side of the clamping block is attached to the inclined plane of the second conical section; 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 fixing sleeve is connected with an end cover through a second thread section in a threaded manner, and the end cover is provided with a perforation.
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, a reset spring is arranged in the T-shaped groove, one end of the reset spring is fixed in the T-shaped groove, and the other end of the reset spring is in butt joint with the sliding block.
Specifically, the sliding groove is a T-shaped groove, one end of the clamping block is provided with a sliding block matched with the sliding groove, and the sliding block is in sliding fit with the sliding groove.
Specifically, the sliding groove in be provided with second reset spring, the one end of second reset spring is fixed in the sliding groove, the other end with the sliding block butt.
Specifically, the outside flange that is provided with of fixed cover, the stand passes through flange and cable fixing device to be connected.
Specifically, the support top be provided with the motor, the output of motor is connected with the screw-nut pair, the screw-nut pair's lead screw rotates and sets up on the support, be provided with the slide rail on the support, slide on the slide rail and be provided with the mount pad, the mount pad is connected with the screw-nut pair's nut, cable fixing device sets up on the mount pad, the motor drives the mount pad and removes along the direction of perpendicular to ball screw.
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, the inner side of the clamping block is provided with a plurality of protruding blocks.
The invention has the following advantages:
1. according to the invention, the two ends of the charging cable are fixed through the cable fixing device, the power cable, the data cable and the control cable in the charging cable are fixed through the fixing plate at first, the fixing plate can fix the power cable, the data cable or the control cable with different diameters during fixing, the adaptability is high, then the outer sheath of the charging cable is fixed through screwing the end cover, and the double fixing effect is achieved, so that the simulation is more real due to the fact that the fixing mode of the charging cable and the charging head is simulated when the charging cable is used.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure shown 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 structure according to the present invention;
FIG. 5 is a schematic view of an assembled structure of a fixing plate and a fixing plug according to the present invention;
FIG. 6 is a schematic view of a fixed plug according to the present invention;
FIG. 7 is a schematic diagram of a latch according to the present invention;
FIG. 8 is a schematic view of a cable fixture device according to the present invention;
FIG. 9 is an enlarged schematic view of the structure shown at B in FIG. 8;
FIG. 10 is a schematic view of a briquette structure according to the present invention;
FIG. 11 is a schematic view of a clamping block structure according to the present invention;
in the figure: the device comprises a 1-base, a 2-driving motor, a 3-ball screw, a 4-screw nut, a 5-upright post, a 6-cable fixing device, a 7-charging cable, an 8-support, a 9-sliding rail, an 11-second motor, a 12-driven gear, a 13-mounting seat, a 14-screw, a 15-nut, a 16-motor, a 17-driving gear, a 18-fixing plate, a 19-end cover, a 20-pressing block, a 21-pressure spring, a 23-connecting flange, a 24-mounting hole, a 25-sliding groove, a 26-fixing plug, a 27-sliding groove, a 28-clamping block, a 29-sliding block, a 30-clamping block, a 31-sliding block, a 32-protruding block, a 33-reset spring, a 34-second reset spring and a 35-fixing sleeve.
Detailed Description
For the purpose of making the technical solution and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the 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 invention, as 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 made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 to 11, a test device for simulating the use of a direct current charging pile cable 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 connected with a screw nut 4 in a threaded manner, the base 1 is provided with a penetrating strip-shaped slot, the base 1 is slidably connected with a support 8 through the strip-shaped slot, the bottom of the support 8 is slidably matched 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 a cable fixing device 6 for fixing two ends of a 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 straight barrel sections, conical sections and threaded sections, the straight barrel sections, the conical sections and the threaded sections are sequentially arranged, the cable fixing device 6 further comprises a fixing plug 26, external threads are arranged on the outer portion of the fixing plug 26, the fixing plug 26 is provided with a central through hole, the fixing plug 26 is in threaded connection with the threaded sections of the mounting holes 24, a plurality of sliding grooves 27 are formed in the end face of one end of the fixing plug 26, the sliding grooves 27 are uniformly distributed in the center of the fixing plug 26 in a radial mode, a clamping block 28 is further arranged, one end of the clamping block 28 is in sliding fit with the sliding grooves 27, the clamping block 28 is in a wedge shape, and the inclined sides of the clamping block 28 are matched with the inclined planes of the conical sections;
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 threaded section are arranged in an inner hole at the other end of the fixing sleeve 35, the second threaded section, the second conical section and the second straight cylinder section are sequentially arranged, the second conical section and the second threaded 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 sliding grooves 25 are uniformly distributed in the center of the pressing block 20 in a radial mode, the cable fixing device further comprises clamping blocks 30, the clamping blocks 30 are in sliding fit with the sliding grooves 25, and the inclined edges of the clamping blocks 30 are in wedge shape and are attached to the inclined edges of the second conical section; the outside of briquetting 20 other end is provided with annular boss, the cover is equipped with pressure spring 21 on the briquetting 20, pressure spring 21's one end butt is in on the step, the other end butt is on annular boss, fixed cover 35 has end cover 19 through second screw thread section threaded connection, be provided with the perforation on the end cover 19. With the development of electric vehicles, electric vehicle charging piles in cities are more and more, charging cables 7 of the charging piles are connected to the vehicles to charge the vehicles when the vehicles are charged, the charging cables 7 are dragged and twisted frequently when in use, so that certain requirements are required on the service performance of the charging cables 7, the performance of the cables needs to be tested before the electric vehicle charging piles are put into use, the performance of the cables is ensured to meet the service requirements, the charging cables 7 comprise three power cables, two control cables and one data cable, the diameters of the charging cables 7 of different types are different, the diameters of the adopted power cables are also different, the cable fixing devices 6 are arranged for the test devices in the embodiment to adapt to the charging cables 7 of different diameters, the cable fixing devices 6 in the embodiment can fix the charging cables 7 of different diameters, when in use, both ends of the charging cable 7 to be tested are fixed on the cable fixing device 6, and then the charging cable is 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 cylindrical structure, the clamping block 30 is movably mounted on the pressing block 20 before use, then the clamping block is placed 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 surface 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, thus the bevel edge of the clamping block 30 can be abutted against the bevel edge of the second conical section, as the center of the end cover 19 is provided with a penetrating through hole, one end of the charging cable 7 is penetrated into the through hole and penetrates through the through hole of the pressing block 20 when in fixing, then penetrates through the hollow cavity of the fixing sleeve 35 to the other end of the fixing sleeve 35, before the charging cable 7 is fixed, the power cable, the data cable and the control cable in the charging cable 7 are separated, and the power cable, the data cable and the control cable can be separated by stripping a section of outer sheath of the charging cable 7; in the case where the actual use is required to be simulated in the test, only the outside of the charging cable 7 cannot be fixed in the fixing of the charging cable 7, and the inside power cable, the data cable and the control cable are required to be fixed alone, if the outer sheath of the charging cable 7 is fixed alone, the inside power cable, the data cable and the control cable may be dislocated when the charging cable 7 is twisted, damage to the power cable, the data cable and the control cable may occur, so that the actual simulation effect cannot be achieved, the test result is not the actual use result, and therefore in order to make the environment at the time of the test the same as the environment at the time of the use as much as possible, the embodiment fixes the power cable, the data cable and the 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 apertures of the plurality of mounting holes 24 are different and correspond to the power cable, the data cable and the control cable respectively, when the fixing plate is used, the clamping block 28 is movably mounted on the fixing plug 26, then the fixing plug 26 is connected with the threaded section of the mounting hole 24 in a threaded manner, the bevel edge of the clamping 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 penetrates through the central through hole of the fixing plug 26, then the fixing plug 26 is rotated, the fixing plug 26 is screwed into the mounting hole 24, the clamping 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 clamping block 28 slides along the conical section when the clamping block 28 moves, the clamping block 28 moves towards the center of the mounting hole 24 along the chute 27 under the limitation of the conical section, and due to the sliding of the plurality of clamping blocks 28 are arranged on the fixing plug 26, when the plurality of clamping blocks 28 move towards the center of the mounting hole 24, the clamping blocks 28 are preferably arranged in four, the four clamping blocks 28 are arranged in an annular array, the area surrounded by the four clamping blocks 28 is reduced when the four clamping blocks 28 move towards the center of the mounting hole 24, and finally the four clamping blocks 28 clamp the penetrated power cable, data cable or control cable until the clamping blocks 28 are clamped, so that the power cable, data cable or control cable can be fixed on the fixed plate 18, and the fixing plug 26 and the mounting hole 24 are in threaded connection, so that the connection stability can be ensured, the power cable, data cable or control cable is prevented from falling off, and a hexagon head is arranged on the fixing plug 26, so that the fixing plug 26 can be conveniently fixed by using a wrench sleeve; after the power cable, the data cable and the control cable are fixed, the fixing plate 18 is required 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; in this way, 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 is required 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 limit of the second conical section during sliding of the clamping block 30 along the second conical section, in this embodiment, four clamping blocks 30 are preferably arranged in an annular array, the diameter of an area enclosed by the four clamping blocks 30 when moving towards the center of the pressing block 20 is reduced until the area enclosed by the clamping block 30 is reduced to clamp the charging cable 7, and then the charging cable 7 is fixed on the fixing sleeve 35; then the two ends of the charging cable 7 are respectively fixed on the upright post 5 and the support 8 through the fixing sleeve 35, the upright post 5 is fixed on the base 1, the position of the upright post is unchanged, one end of the charging cable 7 is fixed on the upright post 5, the fixed position of the charging cable 7 is at a certain height from the top surface of the base 1, when the charging cable 7 is used, one end of the charging cable 7 connected with the charging pile is also at a certain height from the ground, thus the charging cable 7 is fixed on the upright post 5 and can simulate a used scene, then the other end of the charging cable is fixed on the support 8, the charging head of the other section of the charging cable 7 is connected on an automobile when the charging head is used, the charging head of the charging cable 7 is also at a certain height from the ground, when the charging head of the charging cable is moved by a user, the charging cable 7 is fixed on the support 8, the driving motor 2 works to drive the ball screw 3 to rotate, the screw nut 4 is connected to the ball screw 3 in a threaded manner, the screw nut 4 is fixed at the bottom of the support 8, the bottom of the support 8 is in sliding fit with a strip-shaped groove formed in the base 1, the ball screw 3 rotates to drive the screw nut to move along the ball screw 3, the strip-shaped groove is located above the ball screw 3 and is parallel to the ball screw 3, the ball screw 3 rotates to drive the support 8 to move along the strip-shaped groove, a scene that a user pulls the charging cable 7 to use is simulated, the driving motor 2 can drive the support 8 to move back and forth along the strip-shaped groove in a positive and negative direction, the charging cable 7 is pulled on the base 1 during the back and forth movement in a simulated manner, and friction and abrasion of the charging cable 7 and the ground can be simulated.
Further, the sliding groove 27 is a T-shaped groove, one end of the clamping 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 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 blocks 29 arranged on the clamping blocks 28 are of T-shaped structures matched with the T-shaped grooves, and the sliding blocks 29 and the sliding grooves 27 are matched with each other to install the clamping blocks 28 so as to move along the sliding grooves 27 and move towards the axle center of the fixed plug 26.
Further, a return spring 33 is disposed in the T-shaped groove, one end of the return spring 33 is fixed in the T-shaped groove, and the other end is in contact with the slider 29. In this embodiment, the T-shaped slot is radially formed by the side wall of the fixed plug 26, the return spring 33 is disposed in the T-shaped slot, when the clamping block 28 moves along the T-shaped slot, the return spring 33 is compressed, and when the power cable, the data cable or the control cable needs to be taken down, the fixed plug 26 is unscrewed, at this time, the clamping block 28 moves to the outside of the fixed plug 26 along the chute 27 under the action of the restoring force of the return spring 33, at this time, the area surrounded by the plurality of clamping blocks 28 is enlarged, 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 from 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 slidably matched with the sliding groove 25. In this embodiment, four sliding grooves 25 are preferably provided, radial sliding grooves 25 are provided on the end face of the pressing block 20, the sliding grooves 25 are not communicated with the through holes of the pressing block 20, the sliding blocks 31 provided on the clamping blocks 30 are of T-shaped structures matched with the T-shaped grooves, and the sliding blocks 31 and the sliding grooves 25 are matched to install the clamping blocks 30 so as to move along the sliding grooves 25 and move toward the axle center of the pressing block 20.
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 abuts against the sliding block 31. In this embodiment, the sliding groove 25 is radially opened inward by 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, and when the charging cable 7 needs to be removed, the end cover 19 is screwed out, and at this time, the clamping block 30 moves to the outer side of the pressing block 20 along the sliding groove 25 under the restoring force of the second return spring 3433, and at this time, the area surrounded by the plurality of clamping blocks 30 is enlarged, so that 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, the top of the support 8 is provided with a motor 16, the output end of the motor 16 is connected with a screw-nut pair, a screw rod 14 of the screw-nut pair is rotatably arranged on the support 8, a sliding rail 9 is arranged on the support 8, an installation seat 13 is slidably arranged on the sliding rail 9, the installation seat 13 is connected with a nut 15 of the screw-nut pair, the cable fixing device 6 is arranged on the installation seat 13, and the motor 16 drives the installation seat 13 to move along the direction perpendicular to the 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 sliding rail 9, the sliding rail 9 is parallel to the screw rod 17 of the screw-nut pair and is perpendicular to the ball screw 3, and the motor 16 rotates positively and negatively to drive the mounting seat 13 to reciprocate along the sliding rail 9 to drive the charging cable 7 to swing, so that a better simulation effect is achieved by being matched with the driving motor 2.
Further, the second motor 11 is arranged on the mounting seat 13, the output end of the second motor 11 is connected with the driving gear 17, the connecting flange 23 of the fixing sleeve 35 is connected with the driven gear 12, the driving gear 17 is meshed with the driven gear 12, and the fixing sleeve 35 is fixed on the mounting seat 13 through a bearing seat. In order to simulate the torsion of the charging cable 7 in use, in this embodiment, the second motor 11 is disposed on the mounting base 13, and drives the cable fixing device 6 to rotate with the second motor 11 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, the inner side of the clamping block 30 is provided with a plurality of protruding blocks 32. Because the diameter of the charging cable 7 is large, in order to enable the charging cable 7 to be better fixed, the protruding block 32 is arranged on the clamping block 30 in the embodiment, 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 fixation 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. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.

Claims (9)

1. A DC fills electric pile cable simulation and uses testing arrangement, its characterized in that: the 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), the ball screw (3) is connected with a screw nut (4) in a threaded manner, a penetrating strip-shaped slot is formed in the base (1), the base (1) is slidably connected 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 penetrates through the strip-shaped slot to be connected with the screw nut (4), the stand column (5) is fixed on the base (1), and the stand column (5) and the support (8) are respectively provided with a cable fixing device (6) for fixing two ends of a 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 straight barrel sections, conical sections and threaded sections, the straight barrel sections, the conical sections and the threaded sections are sequentially arranged, the cable fixing device (6) further comprises a fixing plug (26), external threads are formed in the outer portion of the fixing plug (26), the fixing plug (26) is provided with a central through hole, the fixing plug (26) is in threaded connection with the threaded sections of the mounting holes, a plurality of sliding grooves (27) are formed in one end face of the fixing plug (26) and are uniformly distributed in the center of the fixing plug (26) in a radial mode, the cable fixing device further comprises clamping blocks (28), one ends of the clamping blocks (28) are in sliding fit with the sliding grooves (27), the clamping blocks (28) are wedge-shaped, and inclined edges of the clamping blocks (28) are matched with inclined angles of the conical sections.
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 barrel section, a second conical section and a second threaded section are arranged in an inner hole at the other end of the fixing sleeve (35), the second threaded section, the second conical section and the second straight barrel section are sequentially arranged, the second conical section and the second threaded 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 sliding grooves (25) are uniformly distributed in a radial mode at the center of the pressing block (20), the cable fixing device further comprises clamping blocks (30), and the clamping blocks (30) are in sliding fit with the sliding grooves (25), and the inclined sides of the clamping blocks (30) are wedge-shaped, and the inclined sides of the second conical sections are attached to each other. The novel pressure block is characterized in that an annular boss is arranged on the outer side of the other end of the pressure block (20), a pressure spring (21) is sleeved on the pressure block (20), one end of the pressure spring (21) is abutted to the step, the other end of the pressure spring is abutted to the annular boss, the fixing sleeve (35) is connected with an end cover (19) through a second thread section in a threaded mode, and a perforation is formed in the end cover (19).
2. The device for simulating and using a direct current charging pile cable according to claim 1, wherein: the sliding chute (27) is a T-shaped groove, one end of the clamping block (28) is provided with a sliding block (29) matched with the sliding chute (27), and the sliding block (29) is in sliding fit with the sliding chute (27).
3. The device for simulating and using a direct current charging pile cable according to claim 2, wherein: a return spring (33) is arranged in the sliding groove (27), one end of the return spring (33) is fixed in the sliding groove (27), and the other end of the return spring is abutted with the sliding block (29).
4. The device for simulating and using a direct current charging pile cable according to claim 1, wherein: 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).
5. The device for simulating and using a direct current charging pile cable according to claim 4, wherein: the sliding groove (25) is internally provided with a second return spring (34), 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 in abutting connection with the sliding block (31).
6. The device for simulating and using a direct current charging pile cable according to claim 1, wherein: the fixing 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 simulating and using a dc charging pile cable according to claim 6, wherein: the utility model provides a motor (16) is provided with at support (8) top, the output of motor (16) is connected with screw-nut pair, screw (14) of screw-nut pair rotate and set up on support (8), be provided with slide rail (9) on support (8), slide on slide rail (9) and be provided with mount pad (13), mount pad (13) are connected with screw-nut pair's nut (15), cable fixing device (6) set up on mount pad (13), motor (16) drive mount pad (13) along the direction of perpendicular to ball screw (3) removal.
8. The device for simulating and using a dc charging pile cable according to claim 7, wherein: 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 simulating and using a direct current charging pile cable according to claim 1, wherein: a plurality of protruding blocks (32) are arranged on the inner side of the clamping block (30).
CN202011520152.6A 2020-12-21 2020-12-21 DC charging cable simulation use testing device Active CN112505591B (en)

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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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Publication number Priority date Publication date Assignee Title
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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