CN117538198A - Cable performance testing device for charging pile - Google Patents
Cable performance testing device for charging pile Download PDFInfo
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- CN117538198A CN117538198A CN202410027109.8A CN202410027109A CN117538198A CN 117538198 A CN117538198 A CN 117538198A CN 202410027109 A CN202410027109 A CN 202410027109A CN 117538198 A CN117538198 A CN 117538198A
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims abstract description 106
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 19
- 238000011056 performance test Methods 0.000 claims 5
- 230000004308 accommodation Effects 0.000 claims 1
- 230000005684 electric field Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a cable performance testing device for a charging pile, which relates to the technical field of cable performance testing and comprises a machine case, wherein a side frame is fixed on one side of the machine case, and a reciprocating movement assembly, a friction testing assembly, two cable clamping assemblies, two curing assemblies, a first transmission structure, a second transmission structure, a driving assembly and a positioning assembly are arranged on the machine case. The invention supports three different cable wear resistance test modes, including linear friction test, circumferential friction test and comprehensive outer surface wear resistance test, and a worker can conveniently switch different test modes by adjusting the position of the sliding sleeve, so that the test device is suitable for various different cables and test requirements, various test devices are not required to be prepared, and the cost of cable test is reduced.
Description
Technical Field
The invention relates to the technical field of cable performance testing, in particular to a cable performance testing device for a charging pile.
Background
For testing the performance of the cable for the charging pile, a special cable performance testing device can be used, and the device usually comprises a series of testing equipment and instruments for evaluating the performance of the cable under various conditions, and the cable on the charging pile needs to be subjected to wear resistance testing during production, because the cable can be worn during use, such as being frequently pulled, trampled or rubbed with hard objects, etc., and the wear resistance testing is mainly used for testing the tolerance of the cable under the actions of friction, scraping or abrasion so as to ensure the safety and reliability of the cable during use, and meanwhile, the wear resistance testing is one of important links for quality testing and controlling of cable products.
Retrieved, chinese patent publication No. CN104215535 a: a cable wear resistance testing device comprises a base, a motor, a containing piece, a transmission piece and a clamping unit; the motor is arranged on the bearing surface of the base and comprises a rotating part; the accommodating part is fixedly arranged on the bearing surface of the base, a through hole is formed in the accommodating part, and the inner side of the through hole rubs with a cable to be tested; one end of the transmission piece is fixedly arranged on the rotating part, and performs reciprocating linear motion along the central axis direction of the through hole, and is positioned between the accommodating piece and the rotating motor; the clamping unit comprises a first cable clamp, a second cable clamp and a fixing seat, and the first cable clamp is arranged at the other end of the transmission piece; the fixing base is arranged on the base bearing surface, the second cable clamp is connected onto the fixing base through the spring, and the technical scheme is characterized in that the detected cable is made to reciprocate along with the transmission piece to perform mutual friction with the through hole for placing the detected cable, so that the wear resistance of the detected cable is tested, however, the following defects still exist when the technical scheme is used:
above-mentioned technical scheme is more single to the test type of cable, and the device can only carry out sharp friction test to the cable, can't carry out the friction test along cable circumference to the cable, only carries out sharp friction test to the cable, can't evaluate the various friction conditions that the cable probably met in the in-service use comprehensively, in the in-service use, the cable can receive the frictional force from different directions, including the friction along cable circumference. Therefore, only performing the linear friction test may ignore the wear resistance of the cable in other directions, resulting in inaccuracy and one-sided test results, and when the cable needs to be subjected to the friction test along the circumferential direction of the cable, the cable needs to be tested by using the testing device with different testing functions, which is not beneficial to smooth performance of the cable testing work and can increase the testing cost of the cable.
Disclosure of Invention
The invention aims to solve the problem of single cable testing mode in the prior art, and provides a cable performance testing device for a charging pile.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the cable performance testing device for the charging pile comprises a chassis, wherein a side frame is fixed on one side of the chassis, and a reciprocating movement assembly, a friction testing assembly, two cable clamping assemblies, two curing assemblies, a first transmission structure, a second transmission structure, a driving assembly and a positioning assembly are arranged on the chassis;
the reciprocating assembly comprises a fixing frame, a reciprocating screw rod and a moving seat, wherein the fixing frame is fixed on the side face of the case, the reciprocating screw rod is rotationally assembled on the fixing frame, the moving seat is slidingly assembled on the fixing frame, and threads of the moving seat are sleeved on the reciprocating screw rod;
the friction testing assembly is arranged on the movable seat, and the reciprocating assembly drives the friction testing assembly to reciprocate so as to perform friction testing on the cable;
the two cable clamping assemblies are arranged on the chassis and are opposite to each other;
the two curing assemblies are respectively arranged on the two cable clamping assemblies, and the cable clamping assemblies are cured and fixed when the curing assemblies operate;
the cable clamping assembly comprises a first transmission structure, a second transmission structure, a reciprocating movement assembly, a cable clamping assembly, a first transmission structure and a second transmission structure, wherein the first transmission structure and the second transmission structure are arranged on the side frame;
the driving assembly is arranged on the chassis, the first transmission structure and the second transmission structure are driven by the driving assembly, the driving assembly comprises a driving shaft and a sliding sleeve, the sliding sleeve is sleeved on the driving shaft in a sliding manner, and the sections of the driving shaft and the sliding sleeve are of rectangular structures;
the positioning assembly is arranged on the driving shaft and is used for positioning the position of the sliding sleeve.
Preferably, the friction test assembly comprises:
the mounting plate is fixed on the movable seat;
the two sliding frames are slidably assembled on the mounting plate and are respectively arranged at the upper end and the lower end of the mounting plate;
the two tension springs are arranged between the two sliding frames;
the two friction blocks are respectively arranged on the two sliding frames and are arranged in a way of being opposite to each other;
four slide ways one by one, two by one and respectively arranged on two sliding frames;
the first slide way and the second slide way are arranged on the mounting plate, and the second slide way are opposite to the first slide way respectively;
the four limiting bolts are respectively arranged in the four first slide ways and the four second slide ways.
Preferably, the cable clamping assembly comprises:
the fixed seat is fixed on the chassis;
one end of each connecting rod is fixed on the side face of the fixing seat;
the clamping seat is fixedly connected with the other ends of the two connecting rods, and a containing groove is formed in the clamping seat;
the sealing cylinder is fixed in the accommodating groove;
the rotating frame is rotationally assembled on the side surface of the clamping seat;
the two clamping arms are rotationally assembled on the rotating frame, and anti-slip teeth are arranged on the opposite side surfaces of the two clamping arms;
the driving block is rotationally connected with the two clamping arms;
the driving gear is arranged on one side of the rotating frame;
the shaft rod penetrates through the fixing seat and the clamping seat, and one end of the shaft rod is fixedly connected with the driving gear;
the transmission gear is fixed on the rotating frame and is meshed with the driving gear.
Preferably, the curing assembly comprises:
the connecting rod penetrates through the sealing cylinder, one end of the connecting rod is rotationally connected with the driving block, and a button is arranged at the other end of the connecting rod;
the sliding plug is connected to the inner surface of the sealing cylinder in a sealing sliding manner, and is fixedly sleeved on the connecting rod;
the through holes are formed in the sliding plug;
an electrorheological fluid stored in the sealed cylinder;
and one end of the conductive spring is connected with the inner surface of the sealing cylinder, and the other end of the conductive spring is connected with the sliding plug.
Preferably, the first transmission structure includes:
one end of the extension shaft is fixedly connected with one end of the reciprocating screw rod, and the other end of the extension shaft is rotatably assembled on the side frame;
the first rotating shaft is rotationally assembled on the side surface of the side frame;
the first gear is fixedly sleeved on the extension shaft;
the gear II is fixedly sleeved on the rotating shaft I, and the gear I and the gear II are meshed with each other.
Preferably, the second transmission structure includes:
the transmission rod is rotationally assembled on the chassis through two bearing seats;
the second rotating shaft is rotationally assembled on the side face of the side frame;
the gear III is fixedly sleeved on the transmission rod;
the gear IV is fixedly sleeved on the rotating shaft II, and the gear III and the gear IV are meshed with each other;
the transmission rod is in transmission connection with the two shaft rods through the two transmission pieces.
Preferably, the driving assembly includes:
the motor is arranged on the chassis through a motor support, and an output shaft of the motor is connected with one end of the driving shaft in a shaft way;
the two rotating shafts III are arranged on the side face of the side frame through bearing seats;
the first bevel gears are fixedly sleeved on the third rotating shafts respectively;
the first bevel gear is fixedly sleeved on the first rotating shaft, the second bevel gear is fixedly sleeved on the second rotating shaft, and the first bevel gear is meshed with the second bevel gear respectively;
the two jacks are respectively arranged on the two rotating shafts III;
the limiting cylinder is fixed on the chassis;
the limiting rod is slidably assembled in the limiting cylinder, and one end of the limiting rod extends to the outside of the limiting cylinder and is fixedly connected with the sliding sleeve.
Preferably, the positioning assembly comprises:
the sliding groove is formed in the driving shaft;
the sliding block is connected in the sliding groove in a sliding way;
the guide rod is fixed in the chute, and the sliding block is sleeved on the guide rod in a sliding way;
the groove is formed in the top surface of the sliding block;
the pull rod is connected in the groove in a sliding way;
one end of the spring is connected with the sliding block, and the other end of the spring is connected with the pull rod;
the positioning plate is fixed on the driving shaft and is arranged at one side of the chute;
the three positioning grooves are formed in the top surface of the positioning plate;
the positioning rod is fixed on the pull rod;
one end of the connecting plate is fixedly connected with the sliding block, and the other end of the connecting plate is fixedly connected with the sliding sleeve.
Preferably, the motor, the driving shaft, the sliding sleeve, the two rotating shafts III, the limiting cylinder and the limiting rod are coaxially arranged.
Preferably, the outer surface of the driving shaft and the inner surface of the sliding sleeve are mutually attached.
Compared with the prior art, the invention has the following advantages:
1. the device supports three different cable wear resistance test modes, including a linear friction test, a circumferential friction test and a comprehensive outer surface wear resistance test, and a worker can conveniently switch different test modes by adjusting the position of the sliding sleeve, so that the test device is applicable to various different cables and test requirements, a plurality of test devices are not required to be prepared, and the cost of cable test is reduced;
2. through setting up conductive spring and electrorheological fluid in the sealed tube, when the motor is running, the conductive spring is energized to produce the electric field, under the effect of this electric field, the electrorheological fluid produces the liquid to solid conversion, thus can fix the position of the sliding plug, this solidification mechanism helps to ensure the stability of the clamping arm, this kind of control can ensure the fixing effect of the clamping arm to the cable, and prevent the cable from falling;
3. through pressing button and removal connecting rod, the staff can open and close two centre gripping arms fast, and two centre gripping arms can synchronous rotation, ensure that they keep away from each other and the uniformity that is close to each other to establish and release the fixed clearance of cable effectively, operation flow is relatively simple, only need press the button, insert the cable, then release the button and can accomplish the fixed of cable, do not need complicated step or extra instrument, in addition, because adopted mobilizable centre gripping arm design, this kind of cable fixing device probably is applicable to different diameters and types of cable, has increased its commonality.
Drawings
Fig. 1 is a schematic structural diagram of a cable performance testing device for a charging pile according to the present invention;
FIG. 2 is a schematic cross-sectional structural view of the cable clamp assembly;
FIG. 3 is a schematic structural view of a friction testing assembly;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 5 is an enlarged view of the structure at B of FIG. 4;
FIG. 6 is an enlarged view of the structure at C of FIG. 4;
FIG. 7 is an enlarged view of the structure at D of FIG. 4;
FIG. 8 is an enlarged view of the structure at A of FIG. 2;
fig. 9 is a schematic structural view of the reciprocating assembly.
In the figure: 1. a chassis; 2. a side frame; 31. a fixing frame; 32. a reciprocating screw rod; 33. a movable seat; 41. a mounting plate; 42. a carriage; 43. a tension spring; 44. a friction block; 45. a first slideway; 46. a second slideway; 47. a limit bolt; 51. a fixing seat; 52. a connecting rod; 53. a clamping seat; 54. a sealing cylinder; 55. a rotating frame; 56. a clamping arm; 57. a driving block; 58. a drive gear; 59. a shaft lever; 510. a transmission gear; 61. a connecting rod; 62. a sliding plug; 63. a through hole; 64. electrorheological fluid; 65. a conductive spring; 71. an extension shaft; 72. a first rotating shaft; 73. a first gear; 74. a second gear; 81. a transmission rod; 82. a second rotating shaft; 83. a third gear; 84. a fourth gear; 85. a transmission member; 91. a motor; 92. a drive shaft; 93. a sliding sleeve; 94. a third rotating shaft; 95. bevel gears I; 96. bevel gears II; 97. a socket; 98. a limiting cylinder; 99. a limit rod; 101. a chute; 102. a slide block; 103. a guide rod; 104. a groove; 105. a pull rod; 106. a spring; 107. a positioning plate; 108. a positioning groove; 109. a positioning rod; 110. and (5) connecting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 and 3, a cable performance testing device for a charging pile comprises a chassis 1, wherein a side frame 2 is fixed on one side of the chassis 1, a reciprocating assembly is arranged on the chassis 1, the reciprocating assembly comprises a fixing frame 31, a reciprocating screw rod 32 and a movable seat 33, the fixing frame 31 is fixed on the side surface of the chassis 1, the reciprocating screw rod 32 is rotatably assembled on the fixing frame 31, the movable seat 33 is slidably assembled on the fixing frame 31, and the movable seat 33 is in threaded connection with the reciprocating screw rod 32, and the movable seat 33 cannot rotate along with the reciprocating screw rod 32 due to the fact that the movable seat 33 is slidably assembled on the fixing frame 31, so that the reciprocating screw rod 32 can drive the movable seat 33 to reciprocate on the fixing frame 31 in the rotating process;
be provided with friction test subassembly on the machine case 1, friction test subassembly sets up on moving seat 33, and reciprocating motion subassembly drive friction test subassembly is reciprocating motion, carries out friction test to the cable, and friction test subassembly includes: a mounting plate 41, the mounting plate 41 being fixed to the movable seat 33; the two sliding frames 42 are slidably assembled on the mounting plate 41, and the two sliding frames 42 are respectively arranged at the upper end and the lower end of the mounting plate 41; two tension springs 43, the two tension springs 43 being disposed between the two carriages 42; the two friction blocks 44, the two friction blocks 44 are respectively arranged on the two sliding frames 42, and the two friction blocks 44 are arranged in a way of being opposite to each other; four slide ways 45, one slide way 45 is arranged on two sliding frames 42 in a group of two by two; the four second slide ways 46 are arranged on the mounting plate 41, and the four second slide ways 46 are arranged opposite to the four first slide ways 45 respectively; four limit bolts 47, four limit bolts 47 are arranged in four slide ways one 45 and four slide ways two 46 respectively, four slide ways one 45, four slide ways two 46 and four limit bolts 47 play a limiting role on two sliding frames 42, two sliding frames 42 are prevented from falling off from the mounting plate 41, the stability of movement of the two sliding frames 42 can be ensured, the mounting plate 41 can also move along with the movement of the moving seat 33 when the moving seat 33 moves, and the two friction blocks 44 continuously rub the cable, so that the wear resistance of the cable is tested.
Referring to fig. 2, two cable clamping assemblies are provided on the chassis 1, the two cable clamping assemblies are all provided on the chassis 1, and the two cable clamping assemblies are arranged right opposite, the cable clamping assemblies include: the fixed seat 51 is fixed on the chassis 1; the two connecting rods 52, one ends of the two connecting rods 52 are fixed on the side surface of the fixed seat 51; the clamping seat 53 is fixedly connected with the other ends of the two connecting rods 52, and the clamping seat 53 is provided with a containing groove; the seal cylinder 54, the seal cylinder 54 is fixed in the holding tank; the rotating frame 55, the rotating frame 55 is assembled on the side surface of the clamping seat 53 in a rotating way; the two clamping arms 56 are rotatably assembled on the rotating frame 55, and anti-slip teeth are arranged on opposite side surfaces of the two clamping arms 56; the driving block 57, the driving block 57 is rotatably connected with the two clamping arms 56; a driving gear 58, the driving gear 58 being provided at one side of the turret 55; the shaft rod 59, the shaft rod 59 passes through the fixed seat 51 and the clamping seat 53, and one end of the shaft rod 59 is fixedly connected with the driving gear 58; the transmission gear 510, the transmission gear 510 is fixed on the rotating frame 55, and intermesh between the transmission gear 510 and the driving gear 58, the staff presses the button at first, make the connecting rod 61 take place to remove, can drive the driving piece 57 when the connecting rod 61 removes, the driving piece 57 is when removing, two centre gripping arms 56 can synchronous rotation, and keep away from each other, until forming the clearance between two centre gripping arms 56, then the staff inserts the end position of cable in the clearance between two centre gripping arms 56, and loosen the button, at this moment, the connecting rod 61 can reset under the effect of conductive spring 65, and drive the driving piece 57 and reset, when the driving piece 57 resets, two centre gripping arms 56 can be close to each other, and jointly hold the cable, play the fixed action to the end of cable, in all, the staff can utilize two cable clamping components to fix the both ends of cable, and keep the cable in the state of tightening.
Referring to fig. 8, two curing assemblies are provided on the cabinet 1, the two curing assemblies are respectively provided on the two cable clamping assemblies, and when the curing assemblies operate, the cable clamping assemblies are cured and fixed, and the curing assemblies include: a connecting rod 61, wherein the connecting rod 61 penetrates through the sealing cylinder 54, one end of the connecting rod 61 is rotationally connected with the driving block 57, and a button is arranged at the other end of the connecting rod 61; the sliding plug 62, the sliding plug 62 is connected on the inner surface of the sealing cylinder 54 in a sealing sliding manner, and the sliding plug 62 is fixedly sleeved on the connecting rod 61; a plurality of through holes 63, the through holes 63 are all arranged on the sliding plug 62; electrorheological fluid 64, electrorheological fluid 64 is accumulated inside seal cylinder 54; the conductive spring 65, one end of the conductive spring 65 is connected with the inner surface of the seal cylinder 54, the other end is connected with the sliding plug 62, when the motor 91 runs, the conductive spring 65 is electrified, the conductive spring 65 can generate an electric field when electrified and solidify the electrorheological fluid 64 in the seal cylinder 54, specifically, the electrorheological fluid 64 is a suspension liquid under the normal condition, the suspension liquid can be converted from liquid to solid under the action of the electric field, and when the intensity of the externally applied electric field is greatly lower than a certain critical value, the electrorheological fluid 64 is in a liquid state; when the electric field strength is much higher than this critical value, it becomes solid; near the critical value of the electric field strength, the viscosity of the suspension increases with the increase of the electric field strength, so that when the electrorheological fluid 64 is solidified, the electrorheological fluid 64 can fix the position of the sliding plug 62, the position of the connecting rod 61 can also be fixed, so that the stability of the two clamping arms 56 can be ensured, the fixing effect of the two clamping arms 56 on the cable is ensured, the cable is prevented from falling off from the two clamping arms 56, and secondly, the sliding plug 62 is provided with a plurality of through holes 63, and when the sliding plug 62 slides in the sealing cylinder 54, the electrorheological fluid 64 can pass through the plurality of through holes 63, so that the sliding plug 62 can freely move in the sealing cylinder 54.
Referring to fig. 4, 5 and 6, a first transmission structure and a second transmission structure are disposed on the chassis 1, the first transmission structure and the second transmission structure are disposed on the side frame 2, the reciprocating assembly is driven by the first transmission structure, the two cable clamping assemblies are driven by the second transmission structure, and the first transmission structure includes: an extension shaft 71, one end of the extension shaft 71 is fixedly connected with one end of the reciprocating screw rod 32, and the other end is rotatably assembled on the side frame 2; the first rotating shaft 72, the first rotating shaft 72 is rotatably assembled on the side surface of the side frame 2; the first gear 73, the first gear 73 is fixedly sleeved on the extension shaft 71; the second gear 74 is fixedly sleeved on the first rotating shaft 72, the first gear 73 and the second gear 74 are meshed with each other, the first rotating shaft 72 can drive the second gear 74 to rotate when rotating, the first gear 73 meshed with the second gear 74 can be driven to rotate when rotating, the extension shaft 71 is further rotated, the extension shaft 71 can drive the reciprocating screw 32 to rotate when rotating, and the moving seat 33 cannot rotate along with the reciprocating screw 32 due to the fact that the moving seat 33 is slidably assembled on the fixed frame 31, the reciprocating screw 32 can drive the moving seat 33 to reciprocate on the fixed frame 31 in the rotating process, the mounting plate 41 can also move along with the moving seat 33 when moving, and the two friction blocks 44 can continuously rub a cable, so that the wear resistance of the cable is tested;
the second transmission structure comprises: the transmission rod 81, the transmission rod 81 is assembled on the chassis 1 through two bearing seats in a rotating way; the second rotating shaft 82 is rotatably assembled on the side surface of the side frame 2; the third gear 83 is fixedly sleeved on the transmission rod 81; the gear IV 84 is fixedly sleeved on the second rotating shaft 82, and the gear III 83 and the gear IV 84 are meshed with each other; the two transmission parts 85 are in transmission connection with the two shaft rods 59 through the two transmission parts 85, the second rotating shaft 82 can drive the fourth gear 84 to rotate when rotating, the fourth gear 84 can drive the third gear 83 meshed with the fourth gear 84 to rotate when rotating, the transmission rod 81 is further rotated, the two shaft rods 59 can be driven to rotate through the two transmission parts 85 when rotating, the two shaft rods 59 can drive the two driving gears 58 to rotate when rotating, the two driving gears 58 can drive the two driving gears 510 to rotate again when rotating, and therefore the two rotating frames 55 rotate, and the four clamping arms 56 can synchronously rotate when rotating, so that a driving cable rotates.
Referring to fig. 4, 5 and 6, a driving assembly is disposed on the chassis 1, the first transmission structure and the second transmission structure are driven by the driving assembly, the driving assembly includes a driving shaft 92 and a sliding sleeve 93, the sliding sleeve 93 is slidably sleeved on the driving shaft 92, the sections of the driving shaft 92 and the sliding sleeve 93 are all rectangular structures, the outer surface of the driving shaft 92 and the inner surface of the sliding sleeve 93 are mutually attached, and the driving assembly includes: the motor 91, the motor 91 is installed on chassis 1 through the motor support, the output shaft of the motor 91 is connected with one end of the drive shaft 92; the two rotating shafts III 94, the two rotating shafts III 94 are all arranged on the side face of the side frame 2 through bearing seats; the two bevel gears 95A and 95B are respectively fixedly sleeved on the two rotating shafts 94A and 94B; the first bevel gear 95 is meshed with the second bevel gear 96 respectively; two sockets 97, the two sockets 97 are respectively arranged on the two rotating shafts III 94; the limiting cylinder 98, the limiting cylinder 98 is fixed on the chassis 1; the limiting rod 99, the limiting rod 99 is slidingly assembled in the limiting cylinder 98, one end of the limiting rod 99 extends to the outside of the limiting cylinder 98 and is fixedly connected with the sliding sleeve 93, the motor 91, the driving shaft 92, the sliding sleeve 93, two rotating shafts three 94, the limiting cylinder 98 and the limiting rod 99 are coaxially arranged, a worker can control the starting and stopping of the first transmission structure and the second transmission structure by adjusting the position of the sliding sleeve 93, specifically, when the sliding sleeve 93 is independently inserted into a jack 97 connected with the first transmission structure, the sliding sleeve 93 can drive the first transmission structure to operate, when the sliding sleeve 93 is independently inserted into a jack 97 connected with the second transmission structure, the sliding sleeve 93 can drive the second transmission structure to operate, when the sliding sleeve 93 is simultaneously inserted into two jacks 97, the first transmission structure and the second transmission structure can synchronously operate, when the first transmission structure operates independently, the cable is stationary, the moving seat 33 drives the two friction blocks 44 to reciprocate, at this time, the two friction blocks 44 can perform linear friction test on the cable, when the second transmission structure operates independently, the two friction blocks 44 are stationary, the cable can rotate slowly, at this time, the two friction blocks 44 can perform friction test on the cable along the circumferential direction of the cable, the worker only needs to set the positions of the two friction blocks 44 in advance, when the first transmission structure operates synchronously with the second transmission structure, the moving seat 33 drives the two friction blocks 44 to reciprocate, and the cable rotates slowly, so that the two friction blocks 44 can perform abrasion resistance test on the outer surface of the cable comprehensively, the worker can adjust the test mode of the device by adjusting the position of the sliding sleeve 93.
Referring to fig. 7, a positioning assembly is provided on the casing 1, the positioning assembly is provided on the driving shaft 92, the positioning assembly positions the sliding sleeve 93, and the positioning assembly includes: a chute 101, the chute 101 being provided on the drive shaft 92; the sliding block 102 is connected in the sliding groove 101 in a sliding way; the guide rod 103, the guide rod 103 is fixed in the chute 101, and the sliding block 102 is sleeved on the guide rod 103 in a sliding way; the groove 104 is formed in the top surface of the sliding block 102; a pull rod 105, the pull rod 105 being slidably connected within the recess 104; the spring 106, one end of the spring 106 is connected with the sliding block 102, and the other end is connected with the pull rod 105; the positioning plate 107, the positioning plate 107 is fixed on the driving shaft 92, and the positioning plate 107 is arranged at one side of the chute 101; three positioning grooves 108, wherein the three positioning grooves 108 are all arranged on the top surface of the positioning plate 107; a positioning rod 109, the positioning rod 109 being fixed to the pull rod 105; the connecting plate 110, one end of the connecting plate 110 is fixedly connected with the sliding block 102, the other end is fixedly connected with the sliding sleeve 93, the locating component is convenient for the staff to adjust and fix the position of the sliding sleeve 93, specifically, during adjustment, the staff pulls the handle upwards, the pull rod 105 moves upwards, the spring 106 can be stretched when the pull rod 105 moves upwards, and the locating rod 109 is driven to move until the locating rod 109 is separated from the corresponding locating groove 108, the limit of the locating rod 109 is lacking, the sliding block 102 can freely slide in the sliding groove 101, then the staff can move the sliding block 102 in a mode of pulling the handle, the sliding sleeve 93 can be driven to move through the connecting plate 110 when the sliding block 102 moves, the staff releases the handle when the locating rod 109 moves to the position opposite to the locating groove 108, at this moment, the pull rod 105 can reset under the action of the spring 106, and the locating rod 109 is clamped into the locating groove 108, at this moment, the position of the sliding sleeve 102 is fixed with the locating groove 108, further, the positions of the three locating grooves 108 correspond to the three states where the sliding sleeve 93 is located, and the staff can flexibly adjust the sliding sleeve 93 by utilizing the three locating grooves 108.
The specific working principle of the invention is as follows:
in the initial state, under the elastic force of the conductive spring 65, the sliding plug 62 is located at one end of the sealing cylinder 54 close to the rotating frame 55, at this time, under the control of the driving block 57, the two clamping arms 56 are in a mutually contacted state, and in addition, under the effect of the two tension springs 43, the two sliding frames 42 are in a mutually approaching position, at this time, the two friction blocks 44 are in mutual contact;
when carrying out friction test to the cable for the electric pile that fills, the staff utilizes two cable clamping components to carry out the centre gripping to the both ends of cable at first and fixes, and is specific, because the specific structure of two cable clamping components is the same completely, only to the specific application method of any one of them cable clamping component detailed description here: the staff presses the button at first, make the connecting rod 61 move, can drive the driving block 57 to move when the connecting rod 61 moves, the driving block 57 can rotate synchronously, and keep away from each other while moving, until the two clamping arms 56 form the interval, then the staff inserts the end position of the cable into the interval between two clamping arms 56, and unclamp the button, at this moment the connecting rod 61 will reset under the effect of the conductive spring 65, and drive the driving block 57 to reset, when the driving block 57 resets, two clamping arms 56 will be close to each other, and hold the cable together, play a fixed role to the end of the cable, in conclusion, the staff can utilize two cable clamping assemblies to fix two ends of the cable, and keep the cable in the state of being stretched;
during the process of fixing the cables, a worker also needs to pull one of the sliding frames 42 to separate the two sliding frames 42 from each other, put the cables between the two friction blocks 44, then loosen the sliding frames 42 to enable the two sliding frames 42 to approach each other under the action of the two tension springs 43 until the two friction blocks 44 press the outer surfaces of the cables together, so that the two friction blocks 44 can conveniently test the wear resistance of the cables;
the side frame 2 is provided with a first transmission structure and a second transmission structure, for the first transmission structure, when the first rotating shaft 72 rotates, the second rotating shaft 74 can drive the first gear 73 meshed with the first rotating shaft to rotate, so that the extending shaft 71 rotates, the extending shaft 71 can drive the reciprocating screw rod 32 to rotate, because the moving seat 33 is slidably assembled on the fixed frame 31, the moving seat 33 cannot rotate along with the reciprocating screw rod 32, the reciprocating screw rod 32 can drive the moving seat 33 to reciprocate on the fixed frame 31 in the rotating process, the mounting plate 41 also moves along with the moving seat 33 when moving, the two friction blocks 44 continuously rub the cable, so that the wear resistance test is performed on the cable, when the second rotating shaft 82 rotates, the fourth gear 84 can be driven to rotate, the gear IV 84 can drive the gear III 83 meshed with the gear IV to rotate when rotating, so that the transmission rod 81 rotates, the two shaft rods 59 can be driven to rotate by the two transmission pieces 85 when the transmission rod 81 rotates, the two driving gears 58 can be driven to rotate when the two shaft rods 59 rotate, the two driving gears 58 can be driven to rotate by the two transmission gears 510 when rotating, so that the two rotating frames 55 rotate, the four clamping arms 56 can synchronously rotate when rotating the two rotating frames 55, so that the driving cables rotate, the transmission ratio between the gear III 83 and the gear IV 84 is required to be smaller than 1, the gear III 83 and the gear IV 84 can play a role in reducing the rotation speed of the rotation shaft II 82, so that the transmission rod 81 slowly rotates, in addition, the transmission ratio of the transmission pieces 85 is smaller than 1, the two transmission pieces 85 can realize a further reduction effect on the rotation speed of the transmission rod 81, this causes the two shafts 59 to rotate slowly, thus causing the cable to rotate slowly;
the case 1 is provided with a driving component, when the motor 91 runs, the driving shaft 92 can be driven to rotate, because the sections of the driving shaft 92 and the sliding sleeve 93 are in rectangular structures, the sliding sleeve 93 can rotate along with the driving shaft 92, in addition, the sections of the two jacks 97 are also in rectangular structures, when the sliding sleeve 93 is inserted into the jacks 97, the sliding sleeve 93 can drive the rotating shaft III 94 to rotate, so that the corresponding bevel gears I95 rotate, when the bevel gears I95 rotate, the bevel gears II 96 meshed with the corresponding bevel gears I can be driven to rotate, because one bevel gear II 96 is fixedly sleeved on the rotating shaft I72, the other bevel gear II 96 is fixedly sleeved on the rotating shaft II 82, a worker can drive the first transmission structure and the second transmission structure to operate through the motor 91, the driving shaft 92 and the sliding sleeve 93, and in summary, the worker can control the starting and stopping of the first transmission structure and the second transmission structure through adjusting the position of the sliding sleeve 93, specifically, when the sliding sleeve 93 is independently inserted into the socket 97 connected with the first transmission structure, the sliding sleeve 93 can drive the first transmission structure to operate, when the sliding sleeve 93 is independently inserted into the socket 97 connected with the second transmission structure, the sliding sleeve 93 can drive the second transmission structure to operate, when the sliding sleeve 93 is simultaneously inserted into the two sockets 97, the first transmission structure and the second transmission structure can synchronously operate, when the first transmission structure independently operates, the cable is stationary, the movable seat 33 drives the two friction blocks 44 to reciprocate, at the moment, the two friction blocks 44 can perform linear friction test on the cable, when the second transmission structure independently operates, the two friction blocks 44 are stationary, the cable can slowly rotate, at the moment, the two friction blocks 44 can perform friction test on the cable along the circumferential direction of the cable, the staff only needs to set the positions of the two friction blocks 44 in advance, when the first transmission structure and the second transmission structure synchronously run, the movable seat 33 drives the two friction blocks 44 to reciprocate, and meanwhile, the cable slowly rotates, so that the two friction blocks 44 can comprehensively carry out wear resistance tests on the outer surface of the cable, and therefore, the device has three different cable wear resistance test modes, and the staff can adjust the test modes of the device by adjusting the position of the sliding sleeve 93;
the driving shaft 92 is provided with a positioning component, the positioning component is convenient for a worker to adjust and fix the position of the sliding sleeve 93, specifically, during adjustment, the worker firstly pulls the handle to enable the pull rod 105 to move upwards, the pull rod 105 can stretch the spring 106 when moving upwards and drive the positioning rod 109 to move until the positioning rod 109 is separated from the corresponding positioning groove 108, the sliding block 102 can slide freely in the sliding groove 101 without the limitation of the positioning rod 109, then the worker can move the sliding block 102 in a manner of pulling the handle, the sliding block 102 can drive the sliding sleeve 93 to move through the connecting plate 110 when moving, when the positioning rod 109 moves to a position opposite to the positioning groove 108, the worker releases the handle, at the moment, the pull rod 105 can reset under the action of the spring 106 and enable the positioning rod 109 to be clamped into the positioning groove 108, at the moment, the positions of the positioning rod 109 and the positioning groove 108 are fixed, the positions of the sliding sleeve 93 are further fixed, the positions of the three positioning grooves 108 correspond to the three states of the sliding sleeve 93, and the worker can flexibly adjust the positions of the sliding sleeve 93 by using the three positioning grooves 108;
it should be noted that, a curing component is further disposed in the seal cylinder 54, when the motor 91 is running, the conductive spring 65 is electrified, the conductive spring 65 can generate an electric field when electrified, and "cure" is performed on the electrorheological fluid 64 in the seal cylinder 54, specifically, the electrorheological fluid 64 is a suspension under normal conditions, it can undergo liquid-to-solid conversion under the action of the electric field, and when the intensity of the applied electric field is substantially lower than a certain critical value, the electrorheological fluid 64 is in a liquid state; when the electric field strength is much higher than this critical value, it becomes solid; near the critical value of the electric field strength, the viscosity of the suspension increases with the increase of the electric field strength, so that when the electrorheological fluid 64 is solidified, the electrorheological fluid 64 can fix the position of the sliding plug 62, the position of the connecting rod 61 can also be fixed, so that the stability of the two clamping arms 56 can be ensured, the fixing effect of the two clamping arms 56 on the cable is ensured, the cable is prevented from falling off from the two clamping arms 56, and secondly, the sliding plug 62 is provided with a plurality of through holes 63, and when the sliding plug 62 slides in the sealing cylinder 54, the electrorheological fluid 64 can pass through the plurality of through holes 63, so that the sliding plug 62 can freely move in the sealing cylinder 54.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The cable performance testing device for the charging pile comprises a chassis (1), and is characterized in that a side frame (2) is fixed on one side of the chassis (1), and a reciprocating movement assembly, a friction testing assembly, two cable clamping assemblies, two curing assemblies, a first transmission structure, a second transmission structure, a driving assembly and a positioning assembly are arranged on the chassis (1);
the reciprocating assembly comprises a fixing frame (31), a reciprocating screw rod (32) and a moving seat (33), wherein the fixing frame (31) is fixed on the side face of the case (1), the reciprocating screw rod (32) is rotationally assembled on the fixing frame (31), the moving seat (33) is slidingly assembled on the fixing frame (31), and the moving seat (33) is in threaded sleeve connection with the reciprocating screw rod (32);
the friction testing assembly is arranged on the movable seat (33), and the reciprocating movement assembly drives the friction testing assembly to reciprocate so as to perform friction testing on the cable;
wherein, two said cable clamping assemblies are all set up on chassis (1), and two cable clamping assemblies are set up in the opposite direction;
the two curing assemblies are respectively arranged on the two cable clamping assemblies, and the cable clamping assemblies are cured and fixed when the curing assemblies operate;
the cable clamping device comprises a side frame (2), a first transmission structure, a second transmission structure, a reciprocating movement assembly, a cable clamping assembly and a connecting rod, wherein the first transmission structure and the second transmission structure are arranged on the side frame (2), the reciprocating movement assembly is driven by the first transmission structure, and the two cable clamping assemblies are driven by the second transmission structure;
the driving assembly is arranged on the chassis (1), the first transmission structure and the second transmission structure are driven by the driving assembly, the driving assembly comprises a driving shaft (92) and a sliding sleeve (93), the sliding sleeve (93) is sleeved on the driving shaft (92) in a sliding manner, and the sections of the driving shaft (92) and the sliding sleeve (93) are of rectangular structures;
the positioning assembly is arranged on the driving shaft (92) and is used for positioning the position of the sliding sleeve (93).
2. The charging stake cable performance testing device of claim 1, wherein the friction testing assembly comprises:
a mounting plate (41), wherein the mounting plate (41) is fixed on the movable seat (33);
the two sliding frames (42), the two sliding frames (42) are slidably assembled on the mounting plate (41), and the two sliding frames (42) are respectively arranged at the upper end and the lower end of the mounting plate (41);
two tension springs (43), wherein the two tension springs (43) are arranged between the two sliding frames (42);
the two friction blocks (44), the two friction blocks (44) are respectively arranged on the two sliding frames (42), and the two friction blocks (44) are arranged in a way of being opposite to each other;
four slide ways I (45), wherein the four slide ways I (45) are arranged in groups of two, and are respectively arranged on the two sliding frames (42);
the four slide ways (46) are respectively arranged on the mounting plate (41), and the four slide ways (46) are respectively opposite to the four slide ways (45);
the four limiting bolts (47) are respectively arranged in the four first slide ways (45) and the four second slide ways (46).
3. The device for testing the performance of a cable for a charging pile according to claim 2, wherein the cable clamping assembly comprises:
the fixed seat (51), the fixed seat (51) is fixed on the chassis (1);
the two connecting rods (52), one ends of the two connecting rods (52) are fixed on the side face of the fixed seat (51);
the clamping seat (53), the clamping seat (53) is fixedly connected with the other ends of the two connecting rods (52), and the clamping seat (53) is provided with a containing groove;
a seal cylinder (54), the seal cylinder (54) being fixed in the accommodation groove;
the rotating frame (55) is rotatably assembled on the side surface of the clamping seat (53);
the two clamping arms (56) are rotatably assembled on the rotating frame (55), and anti-slip teeth are arranged on opposite side surfaces of the two clamping arms (56);
the driving block (57), the said driving block (57) rotates and connects with two clamp arms (56);
a drive gear (58), the drive gear (58) being provided on one side of the turret (55);
the shaft rod (59) penetrates through the fixing seat (51) and the clamping seat (53), and one end of the shaft rod (59) is fixedly connected with the driving gear (58);
and the transmission gear (510) is fixed on the rotating frame (55), and the transmission gear (510) and the driving gear (58) are meshed with each other.
4. A cable performance test apparatus for a charging pile according to claim 3, wherein the curing assembly comprises:
the connecting rod (61) penetrates through the sealing cylinder (54), one end of the connecting rod (61) is rotationally connected with the driving block (57), and a button is arranged at the other end of the connecting rod;
the sliding plug (62) is connected to the inner surface of the sealing cylinder (54) in a sealing sliding manner, and the sliding plug (62) is fixedly sleeved on the connecting rod (61);
a plurality of through holes (63), wherein the through holes (63) are all arranged on the sliding plug (62);
an electrorheological fluid (64), wherein the electrorheological fluid (64) is accumulated in the sealing cylinder (54);
and one end of the conductive spring (65) is connected with the inner surface of the sealing cylinder (54), and the other end of the conductive spring (65) is connected with the sliding plug (62).
5. The device for testing the performance of the cable for the charging pile according to claim 4, wherein the first transmission structure comprises:
the extension shaft (71), one end of the extension shaft (71) is fixedly connected with one end of the reciprocating screw rod (32), and the other end of the extension shaft is rotatably assembled on the side frame (2);
the first rotating shaft (72) is rotatably assembled on the side surface of the side frame (2);
the first gear (73) is fixedly sleeved on the extension shaft (71);
the gear II (74) is fixedly sleeved on the rotating shaft I (72), and the gear I (73) and the gear II (74) are meshed with each other.
6. The cable performance test device for a charging pile according to claim 5, wherein the second transmission structure comprises:
the transmission rod (81) is rotatably assembled on the chassis (1) through two bearing seats;
the second rotating shaft (82) is rotatably assembled on the side surface of the side frame (2);
the gear III (83) is fixedly sleeved on the transmission rod (81);
the gear IV (84) is fixedly sleeved on the rotating shaft II (82), and the gear III (83) and the gear IV (84) are meshed with each other;
the two transmission parts (85) are in transmission connection with the two shaft rods (59) through the two transmission parts (85).
7. The charging pile cable performance test device of claim 6, wherein the drive assembly comprises:
the motor (91) is arranged on the chassis (1) through a motor support, and an output shaft of the motor (91) is in shaft connection with one end of the driving shaft (92);
the two rotating shafts III (94), the two rotating shafts III (94) are arranged on the side face of the side frame (2) through bearing seats;
two bevel gears I (95), wherein the two bevel gears I (95) are respectively fixedly sleeved on two rotating shafts III (94);
two bevel gears (96), wherein one bevel gear (96) is fixedly sleeved on the first rotating shaft (72), the other bevel gear (96) is fixedly sleeved on the second rotating shaft (82), and the two bevel gears (95) are respectively meshed with the two bevel gears (96);
two jacks (97), wherein the two jacks (97) are respectively arranged on the two rotating shafts III (94);
the limiting cylinder (98), the limiting cylinder (98) is fixed on the chassis (1);
the limiting rod (99), the limiting rod (99) is slidingly assembled in the limiting cylinder (98), and one end of the limiting rod (99) extends to the outside of the limiting cylinder (98) and is fixedly connected with the sliding sleeve (93).
8. The device for testing the performance of the cable for the charging pile according to claim 7, wherein the positioning assembly comprises:
the sliding groove (101), the sliding groove (101) is arranged on the driving shaft (92);
the sliding block (102), the sliding block (102) is connected in the chute (101) in a sliding way;
the guide rod (103), the guide rod (103) is fixed in the chute (101), and the sliding block (102) is sleeved on the guide rod (103) in a sliding way;
the groove (104) is formed in the top surface of the sliding block (102);
a pull rod (105), wherein the pull rod (105) is slidably connected in the groove (104);
the spring (106), one end of the spring (106) is connected with the sliding block (102), and the other end is connected with the pull rod (105);
the positioning plate (107), the positioning plate (107) is fixed on the driving shaft (92), and the positioning plate (107) is arranged at one side of the chute (101);
three positioning grooves (108), wherein the three positioning grooves (108) are all arranged on the top surface of the positioning plate (107);
a positioning rod (109), the positioning rod (109) being fixed to the tie rod (105);
the connecting plate (110), one end of connecting plate (110) is fixedly connected with slider (102), and the other end is fixedly connected with sliding sleeve (93).
9. The cable performance test device for the charging pile according to claim 7, wherein the motor (91), the driving shaft (92), the sliding sleeve (93), the two rotating shafts three (94), the limiting cylinder (98) and the limiting rod (99) are coaxially arranged.
10. The cable performance test device for a charging pile according to claim 7, wherein the outer surface of the driving shaft (92) and the inner surface of the sliding sleeve (93) are attached to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410027109.8A CN117538198A (en) | 2024-01-09 | 2024-01-09 | Cable performance testing device for charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410027109.8A CN117538198A (en) | 2024-01-09 | 2024-01-09 | Cable performance testing device for charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117538198A true CN117538198A (en) | 2024-02-09 |
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ID=89794246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410027109.8A Withdrawn CN117538198A (en) | 2024-01-09 | 2024-01-09 | Cable performance testing device for charging pile |
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| Country | Link |
|---|---|
| CN (1) | CN117538198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117907135B (en) * | 2024-03-18 | 2024-06-04 | 泉州市和景荣纺织品有限公司 | Wear-resisting testing arrangement of meshbelt |
-
2024
- 2024-01-09 CN CN202410027109.8A patent/CN117538198A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117907135B (en) * | 2024-03-18 | 2024-06-04 | 泉州市和景荣纺织品有限公司 | Wear-resisting testing arrangement of meshbelt |
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Application publication date: 20240209 |