CN116660697B - Cable partial discharge test system convenient to adjust and test process thereof - Google Patents
Cable partial discharge test system convenient to adjust and test process thereof Download PDFInfo
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- CN116660697B CN116660697B CN202310713426.0A CN202310713426A CN116660697B CN 116660697 B CN116660697 B CN 116660697B CN 202310713426 A CN202310713426 A CN 202310713426A CN 116660697 B CN116660697 B CN 116660697B
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Classifications
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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Abstract
The application provides a cable partial discharge test system convenient to adjust, including chassis and fixed connection in the mount of chassis roof, the chassis roof rotates and is connected with first double-threaded screw rod, still includes: the mounting assembly is connected to the outer wall of the fixing frame in a sliding manner through the sliding frame; the support component comprises a connecting frame, a telescopic rod, a connecting rod and a first universal wheel, and one end of the connecting rod, which is far away from the telescopic rod, penetrates through the first sliding groove and is rotationally connected with the connecting frame; the cable bearing assembly is connected to the top wall of the underframe in a sliding way through a second sliding groove; this linkage of loading board and telescopic link, when the height of rising loading board, the supporting range of chassis progressively increases, and then reduces whole focus, has improved the stability of test, avoids empting, need not to lift the cable drum through the manpower, has alleviateed artifical intensity of labour greatly, has promoted the efficiency of test.
Description
Technical Field
The utility model relates to the technical field of partial discharge testers, in particular to a cable partial discharge test system convenient to adjust and a test process thereof.
Background
Partial discharge is often difficult to avoid for high-voltage electrical products, because the insulating materials and insulating structures often contain small bubbles or oil films which are easier to break down than solid insulation in the manufacturing process, internal discharge can be generated under the action of an electric field, the electric field distribution in the insulating materials and the insulating structures is uneven, partial discharge (such as a needlepoint electrode, burrs on the surface of the electrode or metal scraps and foreign matters) can also be generated, and a partial discharge tester is usually adopted for testing the partial discharge of the cable.
The utility model provides a cable partial discharge tester convenient to adjust to chinese patent (application number: 201921095555.3), includes base, backup pad and instrument body, the backup pad is located the top of base, the instrument body sets up in the top of backup pad, the bottom fixedly connected with of base a plurality of moving mechanism, be equipped with the cavity on the base, be equipped with first threaded rod in the cavity, the one end of first threaded rod is connected with the inner wall rotation of cavity, the other end of first threaded rod runs through the inner wall of cavity and upwards extends, first gear has been fixedly cup jointed on the lateral wall that first threaded rod is located the cavity, be equipped with engaged with second gear on the first gear, one side fixedly connected with bull stick of second gear. The utility model has higher stability and can adjust the free height of different use conditions, thereby improving the use efficiency of the device;
however, the device still has certain disadvantages: as the height of the supporting plate is increased, the gravity center is increased, the stability of the base is gradually deteriorated due to the fact that the base cannot be effectively supported, the situation of toppling occurs, the instrument is damaged, and the cable drum cannot be placed during detection;
for another example, a testing device for a cable partial discharge test platform is proposed by China patent (application number: 202011202810.7), and comprises a bottom plate, a movable support and a fixed support, wherein the bottom plate is installed on the ground through bolts, the movable support and the fixed support are arranged on the bottom plate in a mirror image mode, an expansion assembly is jointly arranged between the movable support and the fixed support, and a cable reel is installed on the expansion assembly; the expansion assembly comprises a bidirectional screw rod arranged between the movable bracket and the fixed bracket through a bearing and two thread seats symmetrically sleeved on the bidirectional screw rod, the installation radius of the expansion rod is controlled by utilizing the movement of the thread seats on the bidirectional screw rod, the installation radius can be completely matched with the installation aperture of the cable drum, and the cable drum is controlled to be static by supporting friction force generated by the expansion rod and the inside of the installation hole of the cable drum through the supporting rod, so that the cable drum is free from installation holes during installation, and the phenomenon that the cable drum shakes during paying off is avoided to influence the accuracy of partial discharge test results;
although the device can provide support for the cable drum, the cable drum needs to be lifted manually and fixed with the device, and because the cable drum is heavy, a great deal of manpower is consumed, and meanwhile, the detection efficiency is affected.
We have therefore improved on this by proposing a cable partial discharge test system that is easy to adjust.
Disclosure of Invention
The utility model aims at: aiming at the problems that the gravity center is raised along with the rise of the height of the supporting plate at present, the stability of the base is gradually deteriorated and the instrument is damaged due to the fact that the base cannot be effectively supported, and can not place the cable drum when detecting, need the manual work to mention the cable drum and fix with the device, because the cable drum is comparatively heavy in most, and then when needing to consume a large amount of manpowers, influence the problem of detecting efficiency.
In order to achieve the above object, the present utility model provides the following technical solutions:
a cable partial discharge test system that facilitates tuning to ameliorate the above problems.
The application is specifically such that:
the utility model provides a cable partial discharge test system convenient to adjust, includes chassis and fixed frame of fixed connection in chassis roof, the chassis roof rotates and is connected with first double-thread screw, first sliding tray and second sliding tray that all set up with respect to first double-thread screw symmetry have still been seted up to the chassis roof, first double-thread screw outer wall still fixedly connected with first helical gear still includes:
the mounting assembly is connected to the outer wall of the fixing frame in a sliding manner through the sliding frame and is used for mounting the test system;
the support component comprises a connecting frame, a telescopic rod, a connecting rod and a first universal wheel, wherein the connecting frame is in threaded connection with the outer wall of the first double-threaded screw, the telescopic rod is in sliding connection with the inner wall of the underframe and is symmetrically arranged about the first double-threaded screw, the connecting rod is rotationally connected to the bottom of the telescopic rod, the first universal wheel is fixedly connected to the bottom wall of the supporting end of the telescopic rod, and one end, far away from the telescopic rod, of the connecting rod penetrates through the first sliding groove and is rotationally connected with the connecting frame, so that effective support is provided when the height of the installation component is lifted;
the cable bearing assembly is connected to the top wall of the underframe in a sliding manner through a second sliding groove and used for placing the cable drum.
As the preferred technical scheme of this application, mount lateral wall still fixedly connected with support frame, the support frame inner wall still rotates and is connected with the regulating spindle, the one end fixedly connected with of regulating spindle links to each other with first helical gear meshing second helical gear, and the other end fixedly connected with is first to turn.
As the preferred technical scheme of this application, the installation component includes through carriage sliding connection in the loading board of mount outer wall and sets up in the tester of loading board roof through fixed part, the loading board diapire still sliding connection has the expansion board that sets up about first double-screw symmetry, just the carriage links to each other with first double-screw thread.
As the preferred technical scheme of this application, fixed part is provided with two sets of with the tester symmetry, fixed part includes fixed plate of fixed connection in the loading board roof, fixed plate inner wall threaded connection has fixing screw, fixing screw's one end rotation is connected with the mounting bracket, and the other end fixedly connected with second changes the handle.
As the preferred technical scheme of this application, cable bearing part includes sliding connection in the expansion bracket of chassis inner wall, fixed connection in the expansion bracket roof and with the dead lever of first double-threaded screw rod symmetry setting, fixed connection in the pneumatic cylinder of dead lever lateral wall and sliding connection in the clamping part of two sets of dead lever outer walls, still be provided with the reinforcement frame between dead lever and the expansion bracket.
As the preferred technical scheme of this application, clamping part includes sliding connection in the clamping frame of two sets of dead lever outer walls, sliding connection in the clamping frame outer wall and rotate the clamping lever box that sets up in the clamping frame inner wall about first double-thread screw symmetry and connect in the second double-thread screw rod, two sets of the clamping lever all links to each other with the second double-thread screw rod screw thread, the clamping frame links to each other with two sets of pneumatic cylinder output is fixed, just the one end fixedly connected with third of second double-thread screw rod changes the handle, two sets of the equal swivelling joint of clamping lever opposite face has the connecting piece of mutually supporting.
As the preferred technical scheme of this application, chassis inner wall still rotates and is connected with the telescopic screw, the telescopic screw links to each other with the expansion bracket screw thread, just the one end that the telescopic screw is close to the telescopic link passes chassis fixedly connected with fourth commentaries on classics handle.
As the preferred technical scheme of this application, two supporting end diapire that pass the chassis of expansion bracket are all fixedly connected with second universal wheel.
As the preferred technical scheme of this application, chassis diapire still fixedly connected with is about the third universal wheel of first double-threaded screw symmetry setting, the third universal wheel corresponds with the second universal wheel.
The utility model also discloses a testing process of the cable partial discharge testing system convenient to adjust, which comprises the following steps:
s1: when the tester is used, the tester is placed at the top of the bearing plate, the fixing screw rods are rotated through the two groups of second rotating handles, the mounting frames are driven to move towards the tester, the tester is further fixed through the two groups of mounting frames, and after the fixing is finished, the expansion plate can be pulled out of the bearing plate according to requirements, so that the purpose of increasing the bearing area of the bearing plate is achieved, and convenience in use is improved;
s2: when the cable drum is required to be fixed, the telescopic screw is rotated through the fourth rotating handle, so that the telescopic screw is driven to be connected with the telescopic screw in a threaded manner in the underframe gradually to extend out, and further the two groups of fixing frames are driven to synchronously move along with the telescopic screw;
s3: after the telescopic frame stretches out and draws back to the place, rotate the second double-threaded screw rod through the third rotating handle, and then drive two groups of clamping rods to move reversely, after pushing the device to the cable reel position, the hydraulic cylinder adjusts the height of the clamping frame, until the connecting piece corresponds to the central through hole of the cable reel, then rotate the second double-threaded screw rod reversely, and then drive the clamping rods and clamp the cable reel through the connecting piece, the connecting piece goes deep into the cable reel, the arrangement of the connecting piece can be suitable for clamping cable reels with different sizes, the hydraulic cylinder is controlled again to jack up the clamping frame, and drive the cable reel to leave the ground along with the clamping frame through the connecting piece, and reversely rotate the telescopic screw rod, drive the telescopic frame to retract, and then drive the cable reel to move to the top of the chassis along with the clamping frame, so that the fixing of the cable reel is completed, the cable reel is not required to be lifted through manpower, the manual labor intensity is greatly reduced, and the testing efficiency is improved;
s4: still can rotate the regulating spindle through first rotating, and then drive first double-threaded screw through first helical gear and second helical gear and rotate, and then drive the loading board upward movement through the carriage, reach the purpose of adjusting to whole height, the suitability of device has been increased, first double-threaded screw still drives the link and rotate downwards when rotating simultaneously, and then promote two sets of telescopic links to stretch out in progressively by the chassis through two sets of connecting rods, through the linkage of loading board and telescopic link, when the high of rising loading board, the supporting range of chassis progressively increases, and then reduce whole focus, the stability of test has been improved, avoid empting.
In the scheme of the application:
1. through the linkage of the bearing plate and the telescopic rod, when the height of the bearing plate is raised, the supporting range of the underframe is gradually increased, so that the overall gravity center is reduced, the stability of the test is improved, the toppling is avoided, the problem that the instrument is damaged due to the fact that the gravity center is raised along with the rise of the height of the supporting plate in the prior art, the stability of the base is gradually deteriorated and the toppling occurs due to the fact that the base cannot be effectively supported is solved;
2. the clamping frame is lifted up through the hydraulic cylinder, the cable drum is driven to leave the ground through the connecting piece, the telescopic screw is reversely rotated, the telescopic frame is driven to retract, the cable drum is driven to move to the top of the chassis, the cable drum is fixed, the cable drum is not required to be lifted up through manpower, the labor intensity of workers is greatly reduced, the testing efficiency is improved, the problem that the cable drum is required to be lifted up manually and fixed with the device in the prior art is solved, and the efficiency of detection is influenced when a large amount of manpower is required to be consumed because the cable drum is heavy in most cases.
Drawings
FIG. 1 is a schematic diagram of a cable partial discharge test system for facilitating adjustment provided herein;
FIG. 2 is a second schematic diagram of a cable partial discharge test system for facilitating adjustment provided herein;
FIG. 3 is a third schematic diagram of the cable partial discharge test system for facilitating adjustment provided in the present application;
FIG. 4 is a schematic diagram of a cable partial discharge test system for facilitating adjustment provided herein;
FIG. 5 is a schematic side view of a cable partial discharge test system for facilitating adjustment provided herein;
FIG. 6 is a schematic view of a portion of a cable partial discharge test system for facilitating tuning provided herein;
FIG. 7 is a schematic view of a cable carrier assembly of the cable partial discharge test system provided herein for ease of adjustment;
fig. 8 is an enlarged view of portion a of fig. 1 of the cable partial discharge test system provided herein for ease of adjustment.
The figures indicate:
1. a chassis; 11. a first sliding groove; 12. a second sliding groove; 13. a third universal wheel; 2. a fixing frame; 21. a carriage; 22. a carrying plate; 23. a tester; 24. an expansion plate; 25. a fixed screw; 26. a mounting frame; 27. a second rotating handle; 28. a fixing plate; 3. a first double-flighted screw; 31. a connecting frame; 32. a telescopic rod; 33. a connecting rod; 34. a first universal wheel; 35. a support frame; 36. an adjusting shaft; 37. a second helical gear; 38. a first rotating handle; 39. a first helical gear; 4. a telescopic frame; 41. a fixed rod; 42. a hydraulic cylinder; 43. a reinforcing frame; 44. a second universal wheel; 5. a clamping frame; 51. a clamping rod; 52. a second double-flighted screw; 53. a third rotating handle; 54. a connecting piece; 6. a telescopic screw; 61. and a fourth rotating handle.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.
Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
As shown in fig. 1-4, this embodiment provides a cable partial discharge test system convenient to adjust, including chassis 1 and fixed frame 2 of fixed connection in chassis 1 roof, chassis 1 roof rotates and is connected with first double-thread screw 3, and chassis 1 roof has still been offered and has all set up first sliding tray 11 and second sliding tray 12 with regard to first double-thread screw 3 symmetry, and first helical gear 39 of first double-thread screw 3 outer wall still fixedly connected with still includes:
the mounting assembly is connected to the outer wall of the fixed frame 2 in a sliding way through a sliding frame 21 and is used for mounting a test system;
the support component comprises a connecting frame 31, a telescopic rod 32, a connecting rod 33 and a first universal wheel 34, wherein the connecting frame 31 is in threaded connection with the outer wall of the first double-threaded screw rod 3, the telescopic rod 32 is in sliding connection with the inner wall of the chassis 1 and is symmetrically arranged about the first double-threaded screw rod 3, the connecting rod 33 is rotatably connected to the bottom of the telescopic rod 32, the first universal wheel 34 is fixedly connected to the bottom wall of the supporting end of the telescopic rod 32, and one end of the connecting rod 33, far away from the telescopic rod 32, penetrates through the first sliding groove 11 and is rotatably connected with the connecting frame 31, so that effective support is provided when the height of the installation component is lifted;
the cable bearing assembly is connected to the top wall of the underframe 1 in a sliding way through a second sliding groove 12 and is used for placing a cable drum;
through the linkage of installation component and supporting part, the linkage of loading board 22 and telescopic link 32, when rising the height of loading board 22, the supporting range of chassis 1 progressively increases, and then reduces whole focus, has improved the stability of test, avoids empting.
As shown in fig. 1-8, as a preferred embodiment, further, on the basis of the above manner, the side wall of the fixing frame 2 is fixedly connected with a supporting frame 35, the inner wall of the supporting frame 35 is also rotatably connected with an adjusting shaft 36, one end of the adjusting shaft 36 is fixedly connected with a second bevel gear 37 which is meshed with a first bevel gear 39, the other end of the adjusting shaft is fixedly connected with a first rotating handle 38, the first rotating handle 38 rotates the adjusting shaft 36, and then the first double-threaded screw 3 is driven to rotate through the first bevel gear 39 and the second bevel gear 37, and then the bearing plate 22 is driven to move upwards through the sliding frame 21, so that the aim of adjusting the overall height is achieved.
As shown in fig. 1-7, as a preferred embodiment, on the basis of the above manner, further, the mounting assembly includes a carrier plate 22 slidably connected to the outer wall of the fixing frame 2 through a sliding frame 21, and a tester 23 disposed on the top wall of the carrier plate 22 through a fixing component, the bottom wall of the carrier plate 22 is slidably connected with an expansion plate 24 symmetrically disposed about the first double-threaded screw 3, and the sliding frame 21 is in threaded connection with the first double-threaded screw 3, so that the first double-threaded screw 3 rotates, and then drives the carrier plate 22 to move upwards through the sliding frame 21, thereby achieving the purpose of adjusting the overall height.
As shown in fig. 1-7, as a preferred embodiment, on the basis of the above manner, further, two groups of fixing components are symmetrically arranged about the tester 23, each fixing component comprises a fixing plate 28 fixedly connected to the top wall of the bearing plate 22, a fixing screw 25 is in threaded connection with the inner wall of the fixing plate 28, one end of the fixing screw 25 is rotatably connected with a mounting frame 26, the other end of the fixing screw is fixedly connected with a second rotating handle 27, the tester 23 is placed on the top of the bearing plate 22, the fixing screw 25 is rotated by the two groups of second rotating handles 27, and then the mounting frame 26 is driven to move towards the tester 23, and then the tester 23 is fixed by the two groups of mounting frames 26.
As shown in fig. 2-7, as a preferred embodiment, further, on the basis of the above manner, the cable bearing component includes a telescopic frame 4 slidingly connected to the inner wall of the chassis 1, a fixing rod 41 fixedly connected to the top wall of the telescopic frame 4 and symmetrically arranged about the first double-threaded screw 3, a hydraulic cylinder 42 fixedly connected to the side wall of the fixing rod 41, and clamping components slidingly connected to the outer walls of the two groups of fixing rods 41, and a reinforcing frame 43 is further arranged between the fixing rod 41 and the telescopic frame 4, so that the cable drum is not required to be lifted by manpower, the labor intensity is greatly reduced, and the testing efficiency is improved.
As shown in fig. 2-7, as a preferred embodiment, further, the clamping component includes a clamping frame 5 slidably connected to the outer walls of the two groups of fixing rods 41, a clamping rod 51 box slidably connected to the outer walls of the clamping frame 5 and symmetrically arranged with respect to the first double-threaded screw 3, and a second double-threaded screw 52 rotatably connected to the inner wall of the clamping frame 5, where the two groups of clamping rods 51 are both connected with the threads of the second double-threaded screw 52, the clamping frame 5 is fixedly connected with the output ends of the two groups of hydraulic cylinders 42, one end of the second double-threaded screw 52 is fixedly connected with a third rotating handle 53, the opposite surfaces of the two groups of clamping rods 51 are both rotatably connected with a connecting piece 54 which is matched with each other, the second double-threaded screw 52 is reversely rotated, so as to drive the clamping rods 51 and clamp the cable drum through the connecting piece 54 into the cable drum, the setting of the connecting piece 54 is applicable to clamp cable drums of different sizes, the hydraulic cylinders 42 are controlled again to lift the clamping frame 5, and drive the cable drum to be lifted off, and reversely rotate the telescopic screw 6, and drive the telescopic frame 4 to retract to the top of the cable drum 1, thereby completing the fixing of the cable drum.
As shown in fig. 1-8, as a preferred embodiment, further, on the basis of the above manner, the inner wall of the chassis 1 is further rotationally connected with the telescopic screw 6, the telescopic screw 6 is in threaded connection with the telescopic frame 4, one end of the telescopic screw 6, which is close to the telescopic rod 32, passes through the chassis 1 and is fixedly connected with the fourth rotating handle 61, the telescopic screw 6 is rotated by the fourth rotating handle 61, and then the telescopic screw 6 is driven to be in threaded connection with the telescopic frame 4 so as to gradually extend out of the chassis 1, and then the two groups of fixing frames 2 are driven to synchronously move along with the telescopic frame 4, when the telescopic frame 4 extends out, the integral supporting range is increased by matching with the chassis 1, the gravity center of the device is further reduced, and the stability during testing is increased.
As shown in fig. 1-4, as a preferred embodiment, further, on the basis of the above manner, the bottom walls of the two supporting ends of the telescopic frame 4 penetrating through the chassis 1 are fixedly connected with second universal wheels 44.
As shown in fig. 1 to 4, as a preferred embodiment, further, on the basis of the above manner, a third universal wheel 13 symmetrically arranged about the first double-threaded screw 3 is fixedly connected to the bottom wall of the chassis 1, and the third universal wheel 13 corresponds to the second universal wheel 44.
The specific model specification of the hydraulic cylinder 42 needs to be determined by selecting the model according to the actual specification of the device, etc., and the specific model selecting calculation method adopts the prior art in the field, so the detailed description is omitted.
Specifically, this cable partial discharge test system convenient to adjust is at the during operation: when the tester 23 is used, the tester 23 is placed at the top of the bearing plate 22, the fixing screw 25 is rotated through the two groups of second rotating handles 27, the mounting frame 26 is driven to move towards the tester 23, the tester 23 is further fixed through the two groups of mounting frames 26, and after the fixing is finished, the expansion plate 24 can be pulled out of the bearing plate 22 according to requirements, so that the purpose of increasing the bearing area of the bearing plate 22 is achieved, and the convenience in use is improved;
when the cable drum is required to be fixed, the telescopic screw rod 6 is rotated through the fourth rotating handle 61, so that the telescopic screw rod 6 is driven to be connected with the telescopic frame 4 in a threaded mode to extend out of the underframe 1 gradually, and then the two groups of fixing frames 2 are driven to synchronously move along with the telescopic frame, and when the telescopic frame 4 extends out, the integral supporting range is increased by matching with the underframe 1, so that the gravity center of the device is lowered, and the stability during testing is increased; after the telescopic frame 4 stretches out and draws back in place, the second double-threaded screw rod 52 is rotated through the third rotating handle 53, and then the two groups of clamping rods 51 are driven to move reversely, after the device is pushed to the cable drum position, the hydraulic cylinder 42 adjusts the height of the clamping frame 5 until the connecting piece 54 corresponds to the central through hole of the cable drum, then the second double-threaded screw rod 52 is reversely rotated, and further the clamping rods 51 are driven, and the cable drum is clamped through the connecting piece 54, the connecting piece 54 stretches into the cable drum, the arrangement of the connecting piece 54 can be suitable for clamping cable drums with different sizes, the hydraulic cylinder 42 is controlled again to lift the clamping frame 5, and the cable drum is driven to leave the ground through the connecting piece 54, and the telescopic screw rod 6 is reversely rotated, so that the telescopic frame 4 is driven to retract, and then the cable drum is driven to move to the top of the chassis 1, the fixing of the cable drum is completed, the manual labor intensity is greatly reduced, and the testing efficiency is improved;
still can rotate regulating spindle 36 through first rotating handle 38, and then drive first double-screw 3 through first helical gear 39 and second helical gear 37 and rotate, and then drive loading board 22 upward movement through carriage 21, reach the purpose of adjusting to whole height, the suitability of device has been increased, first double-screw 3 still drives link 31 downwardly turning when rotating simultaneously, and then promote two sets of telescopic links 32 to stretch out gradually by chassis 1 through two sets of connecting rods 33, through the linkage of loading board 22 and telescopic link 32, when the height of rising loading board 22, the supporting range of chassis 1 progressively increases, and then reduce whole focus, the stability of test has been improved, avoid empting.
The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and although the present utility model has been described in detail in the present specification with reference to the above embodiments, the present utility model is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present utility model; all technical solutions and modifications thereof that do not depart from the spirit and scope of the utility model are intended to be included in the scope of the appended claims.
Claims (6)
1. The utility model provides a cable partial discharge test system convenient to adjust, includes chassis (1) and fixed frame (2) of fixed connection in chassis (1) roof, a serial communication port, chassis (1) roof rotation is connected with first double-thread screw (3), chassis (1) roof has still been seted up first sliding tray (11) and second sliding tray (12) that all set up with first double-thread screw (3) symmetry, first double-thread screw (3) outer wall still fixedly connected with first helical gear (39), still includes: the mounting assembly is connected to the outer wall of the fixed frame (2) in a sliding way through a sliding frame (21) and is used for mounting the test system;
the support component comprises a connecting frame (31) which is connected to the outer wall of the first double-threaded screw rod (3) in a threaded mode, a telescopic rod (32) which is connected to the inner wall of the underframe (1) in a sliding mode and is symmetrically arranged relative to the first double-threaded screw rod (3), a connecting rod (33) which is connected to the bottom of the telescopic rod (32) in a rotating mode, and a first universal wheel (34) which is fixedly connected to the bottom wall of the supporting end of the telescopic rod (32), wherein one end, far away from the telescopic rod (32), of the connecting rod (33) penetrates through the first sliding groove (11) to be connected with the connecting frame (31) in a rotating mode, and is used for providing effective support when the height of the installation assembly is lifted;
the cable bearing assembly is connected to the top wall of the underframe (1) in a sliding way through a second sliding groove (12) and is used for placing a cable drum;
the side wall of the fixing frame (2) is fixedly connected with a supporting frame (35), the inner wall of the supporting frame (35) is also rotationally connected with an adjusting shaft (36), one end of the adjusting shaft (36) is fixedly connected with a second bevel gear (37) which is meshed with a first bevel gear (39), and the other end of the adjusting shaft is fixedly connected with a first rotating handle (38);
the mounting assembly comprises a bearing plate (22) which is connected to the outer wall of the fixed frame (2) in a sliding way through a sliding frame (21) and a tester (23) which is arranged on the top wall of the bearing plate (22) through a fixing part, wherein an expansion plate (24) which is symmetrically arranged relative to the first double-threaded screw (3) is also connected to the bottom wall of the bearing plate (22) in a sliding way, and the sliding frame (21) is in threaded connection with the first double-threaded screw (3);
the cable bearing component comprises a telescopic frame (4) which is connected to the inner wall of the underframe (1) in a sliding way, a fixed rod (41) which is fixedly connected to the top wall of the telescopic frame (4) and is symmetrically arranged relative to the first double-threaded screw rod (3), a hydraulic cylinder (42) which is fixedly connected to the side wall of the fixed rod (41) and clamping components which are connected to the outer walls of the two groups of fixed rods (41) in a sliding way, and a reinforcing frame (43) is further arranged between the fixed rod (41) and the telescopic frame (4);
the clamping component comprises clamping frames (5) which are connected to the outer walls of two groups of fixing rods (41) in a sliding mode, clamping rods (51) which are connected to the outer walls of the clamping frames (5) in a sliding mode and symmetrically arranged relative to the first double-threaded screw rods (3) and second double-threaded screws (52) which are connected to the inner walls of the clamping frames (5) in a rotating mode, the two groups of clamping rods (51) are connected with the threads of the second double-threaded screws (52), the clamping frames (5) are fixedly connected with the output ends of the two groups of hydraulic cylinders (42), one end of each second double-threaded screw rod (52) is fixedly connected with a third rotating handle (53), and the opposite faces of the two groups of clamping rods (51) are connected with connecting pieces (54) which are matched with each other in a rotating mode.
2. The cable partial discharge test system convenient to adjust according to claim 1, wherein the fixing parts are symmetrically arranged in two groups relative to the tester (23), the fixing parts comprise a fixing plate (28) fixedly connected to the top wall of the bearing plate (22), a fixing screw (25) is connected to the inner wall of the fixing plate (28) in a threaded manner, one end of the fixing screw (25) is rotatably connected with a mounting frame (26), and the other end of the fixing screw is fixedly connected with a second rotating handle (27).
3. The cable partial discharge test system convenient to adjust according to claim 2, wherein the inner wall of the chassis (1) is further rotatably connected with a telescopic screw rod (6), the telescopic screw rod (6) is in threaded connection with the telescopic frame (4), and one end, close to the telescopic rod (32), of the telescopic screw rod (6) penetrates through the chassis (1) and is fixedly connected with a fourth rotating handle (61).
4. The cable partial discharge testing system convenient to adjust according to claim 1, wherein the bottom walls of the two supporting ends of the telescopic frame (4) penetrating through the underframe (1) are fixedly connected with second universal wheels (44).
5. The cable partial discharge test system convenient to adjust according to claim 1, wherein the bottom wall of the chassis (1) is also fixedly connected with a third universal wheel (13) symmetrically arranged about the first double-threaded screw (3), and the third universal wheel (13) corresponds to the second universal wheel (44).
6. A testing process employing the conveniently tuned cable partial discharge testing system of claim 3, comprising the steps of:
s1: when the tester is used, the tester (23) is placed at the top of the bearing plate (22), the fixing screw (25) is rotated through the two groups of second rotating handles (27), the mounting frame (26) is driven to move towards the tester (23), the tester (23) is further fixed through the two groups of mounting frames (26), and after the fixing is finished, the expansion plate (24) can be pulled out of the bearing plate (22) according to requirements, so that the bearing area of the bearing plate (22) is increased;
s2: when the cable drum is required to be fixed, the telescopic screw (6) is rotated through the fourth rotating handle (61), so that the telescopic screw (6) is driven to be connected with the telescopic frame (4) in a threaded manner to extend out of the underframe (1) gradually, and further the two groups of fixing frames (2) are driven to synchronously move along with the telescopic frame, and when the telescopic frame (4) extends out, the telescopic frame is matched with the underframe (1) to increase the whole supporting range, so that the gravity center of the device is lowered, and the stability during testing is improved;
s3: after the telescopic frame (4) stretches out and draws back in place, the second double-threaded screw rod (52) is rotated through the third rotating handle (53), and then the two groups of clamping rods (51) are driven to reversely move, after the device is pushed to the position of the cable reel, the hydraulic cylinder (42) adjusts the height of the clamping frame (5), after the connecting piece (54) corresponds to the central through hole of the cable reel, the second double-threaded screw rod (52) is reversely rotated, and then the clamping rods (51) are driven to clamp the cable reel through the connecting piece (54), the connecting piece (54) stretches into the cable reel, the connecting piece (54) can be suitable for clamping cable reels with different sizes, the hydraulic cylinder (42) is controlled again to jack the clamping frame (5), the cable reel is driven to leave the ground through the connecting piece (54), the telescopic screw rod (6) is reversely rotated, the telescopic frame (4) is driven to retract, and then the cable reel is driven to move to the top of the chassis (1), and the fixing of the cable reel is completed;
s4: the adjusting shaft (36) is rotated through the first rotating handle (38), and then the first double-threaded screw (3) is driven to rotate through the first bevel gear (39) and the second bevel gear (37), and then the bearing plate (22) is driven to move upwards through the sliding frame (21), the purpose of adjusting the whole height is achieved, the applicability of the device is improved, meanwhile, the first double-threaded screw (3) also drives the connecting frame (31) to rotate downwards when rotating, and then the two groups of connecting rods (33) push the two groups of telescopic rods (32) to stretch out from the underframe (1) gradually, the supporting range of the underframe (1) is gradually increased through the linkage of the bearing plate (22) and the telescopic rods (32), and then the whole gravity center is reduced, and the stability of the test is improved.
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