CN113848396B - Device and method for measuring electric charge on insulating surface of oiled paper - Google Patents
Device and method for measuring electric charge on insulating surface of oiled paper Download PDFInfo
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- CN113848396B CN113848396B CN202111129541.0A CN202111129541A CN113848396B CN 113848396 B CN113848396 B CN 113848396B CN 202111129541 A CN202111129541 A CN 202111129541A CN 113848396 B CN113848396 B CN 113848396B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 11
- 230000037303 wrinkles Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 7
- 239000011810 insulating material Substances 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/24—Arrangements for measuring quantities of charge
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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
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
An oilpaper insulating surface charge measuring device and method belong to the field of charge measuring devices. Comprises a base, a limiting device and a fixing device; the upper end of the base is provided with a limiting device and a fixing device. The gear I is movably connected to the upper end of the bottom plate through a middle shaft, and the upper end of the gear I is fixedly connected with a screw rod; the connecting ring is connected to the screw rod through threads, and the connecting rod and the detection probe are fixedly connected to the outer circular surface of the connecting ring; a round hole I and a round hole II are formed in the horizontal end of the L-shaped support plate, and a limiting block is fixedly connected to the inner wall of the round hole I; the clamping block is fixedly connected to the side face of the L-shaped support plate. Not only can twine the oiled paper on the montant, guarantee that the distance of oiled paper and test probe remains unchanged when the fold on the oiled paper is expanded, when the oiled paper overlength simultaneously, can also expand the oiled paper in advance through restriction device, avoid the oiled paper to tie up, twine and produce great fold together.
Description
Technical Field
The invention relates to an oil paper insulating surface charge measuring device and method, and belongs to the field of charge measuring devices.
Background
Currently, measurement methods for surface charge of an insulating material mainly include a dust pattern method, an optical measurement method based on a bubble-kers effect, and an electrostatic probe method, which is one of the most widely used measurement methods.
When the static probe method is used for measuring the surface charge of the insulating material, the static probe is required to be perpendicular to the surface of the insulating material to be measured and keep a constant distance, and then the surface charge of the insulating material can excite induced voltage on an induction conductor of the static probe, so that the measurement data output of the induced voltage is obtained.
In the detection process, the length of the oiled paper is different, the oiled paper is simultaneously wrinkled, and the vertical inaccuracy detected by the detection probe is caused, so that improvement is needed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an oil paper insulating surface charge measuring device and an oil paper insulating surface charge measuring method.
The invention achieves the above purpose, adopts the following technical scheme:
the device comprises a base, a limiting device and a fixing device; the upper end of the base is provided with a limiting device and a fixing device.
A method of using a oiled paper insulating surface charge measurement device, the method comprising the steps of:
step one: one end of the oiled paper is clamped between the movable plate I and the vertical rod, and the other end of the oiled paper is clamped between the clamping plate and the movable plate II;
step two: starting a motor, wherein the motor drives the vertical rod to rotate, and the oilpaper is wound on the outer circular surface of the vertical rod;
step three: and starting the motor and simultaneously opening the detection probe to acquire data.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the oiled paper can be wound on the vertical rod, the distance between the oiled paper and the detection probe is kept unchanged while the folds on the oiled paper are unfolded, and meanwhile, when the oiled paper is overlong, the oiled paper can be pre-unfolded through the limiting device, so that the oiled paper is prevented from being knotted and wound together to generate larger folds.
Drawings
FIG. 1 is a front view of an oilpaper insulation surface charge measuring device of the present invention;
FIG. 2 is a front view of the base of an oilpaper insulation surface charge measurement device of the present invention;
FIG. 3 is a bottom view of an L-shaped support plate of an oilpaper insulation surface charge measurement device of the present invention;
FIG. 4 is a front view of a limiting device of an oiled paper insulating surface charge measuring device of the present invention;
FIG. 5 is a shape of an arc-shaped groove of an oiled paper insulating surface charge measuring device of the present invention;
FIG. 6 is a front view of a fixture of an oiled paper insulating surface charge measurement device of the present invention;
FIG. 7 is a side view of a clamping plate of an oiled paper insulation surface charge measurement device of the present invention;
FIG. 8 is a top view of a carriage of an oiled paper insulated surface charge measurement device of the present invention;
fig. 9 is a schematic diagram showing a structure in which a oilpaper of an oilpaper insulation surface charge measuring device of the present invention is wound around a movable rod.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are all within the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1 to 9, the present embodiment describes an oilpaper insulation surface charge measuring device including a base 1, a restricting device 2, and a fixing device 3; the upper end of the base 1 is provided with a limiting device 2 and a fixing device 3.
The second embodiment is as follows: as shown in fig. 1 to 9, this embodiment is further described in the first embodiment, where the base 1 includes a support 11, a bottom plate 12, a gear i 13, a support rod 14, a slider i 16, a connecting rod 17, a connecting ring 18, a detection probe 19, a screw 110, a movable plate i 111, a fastening bolt i 112, a vertical rod 113, an L-shaped support plate 114, a limit baffle 116, a limit block 117, a motor 119, a spring i 121, a gear ii 122, a slider ii 123, and a clamping block 124; the lower end of the bottom plate 12 is fixedly connected with a support post 11, one side of the top end of the bottom plate 12 is fixedly connected with a support rod 14, the other side of the top end of the bottom plate 12 is fixedly connected with an L-shaped support plate 114, and one side of the top end of the bottom plate 12, which is close to the L-shaped support plate 114, is provided with a sliding chute I120; one end of the spring I121 is fixedly connected in the chute I120; the gear I13 is movably connected to the upper end of the bottom plate 12 through a middle shaft, and the upper end of the gear I13 is fixedly connected with a screw rod 110; the connecting ring 18 is connected to the screw rod 110 through threads, and a connecting rod 17 and a detection probe 19 are fixedly connected to the outer circular surface of the connecting ring 18; the other end of the connecting rod 17 is fixedly connected with a sliding block I16; a sliding groove II 15 is formed in the side face of the vertical rod 14, and the sliding groove II 15 is in sliding fit with the sliding block I16; the motor 119 is fixedly connected to the lower end of the bottom plate 12 through a bracket, an output shaft of the motor 119 penetrates through the bottom plate 12 and is fixedly connected with a gear II 122, the gear II 122 is meshed with a gear I13, the upper end of the gear II 122 is fixedly connected with a vertical rod 113, and the side surface of the vertical rod 113 is fixedly connected with a movable plate I111 through a fastening bolt I112; a round hole I115 and a round hole II 118 are formed in the horizontal end of the L-shaped support plate 114, and a limiting block 117 is fixedly connected to the inner wall of the round hole I115; the limit baffle 116 is fixedly connected to the lower end of the L-shaped support plate 114; the sliding block II 123 is in sliding fit with the sliding groove I120, and the other end of the spring I121 is fixed on the side face of the sliding block II 123; the clamping block 124 is fixedly connected to the side surface of the L-shaped support plate 114.
And a third specific embodiment: as shown in fig. 1-9, in this embodiment, as further described in the first embodiment, the limit stop 116 is formed in an elliptical ring shape, and an included angle smaller than 90 ° exists between the long axis of the limit stop 116 and the edge line of the horizontal end of the L-shaped support 114. An included angle is formed between the limiting baffle 116 and the horizontal end of the L-shaped support plate 114, and when the connecting rod 22 drives the movable rods 27 to rotate by 90 degrees, a distance is reserved between the two movable rods 27 and the end points of the long shafts, so that when the two movable rods 27 move reversely, each movable rod 27 cannot move to the original position, and the oilpaper 4 is wound on the two movable rods 27, so that detection is affected.
The specific embodiment IV is as follows: as shown in fig. 1-9, this embodiment is further described with respect to the first embodiment, in which the detection probe 19 is located between the screw 110 and the vertical rod 113, and the detection probe 19 is oriented toward the vertical rod 13.
Fifth embodiment: as shown in fig. 1-9, this embodiment is further described with respect to the first embodiment, where the limiting device 2 includes a gear iii 21, a connecting rod 22, a limiting rod 24, a slide rod 26, a movable rod 27, a spring ii 28, a gear iv 29, a threaded cylinder 210, and a transmission rod 211; the connecting rod 22 is connected with a gear III 21 through a key, the lower end of the connecting rod 22 is fixedly connected with a limiting rod 24, and an arc-shaped groove 23 is formed in the outer circular surface of the connecting rod 22; two vertical through holes 25 are symmetrically formed in the limiting rod 24; the upper end of the movable rod 27 is fixedly connected with a slide rod 26, and the slide rod 26 is in sliding fit with the through hole 25; one end of the spring II 28 is fixedly connected in the through hole 25, and the other end of the spring II 28 is fixedly connected to the side face of the slide rod 26; the lower end of the gear IV 29 is fixedly connected with a thread cylinder 210, and the gear IV 29 is meshed with the gear III 21; the transmission rod 211 is positioned in the threaded cylinder 210, the transmission rod 211 is in threaded fit with the threaded cylinder 210, a sliding rail 212 parallel to the central shaft is further arranged on the outer circular surface of the transmission rod 211, and the sliding rail 212 is in sliding fit with the clamping block 124; the connecting rod 22 is connected in the round hole I115 through a bearing, and the arc-shaped groove 23 is in sliding fit with the limiting block 117; the thread cylinder 210 is connected in the round hole II 118 through a bearing; the spring II 28 is always in a stretched state; the slide bar 26 is always contacted with the outer side surface of the limit baffle 116 under the elastic force of the spring II 28. The transmission rod 211 moves downwards to be inserted into the round hole III 32 when the connecting rod 22 rotates, so that the fixing device 3 is prevented from moving.
Specific embodiment six: as shown in fig. 1-9, this embodiment is further described with respect to the first embodiment, where the central angle of the arc-shaped groove 23 is less than or equal to 90 °.
Seventh embodiment: as shown in fig. 1 to 9, this embodiment is further described in the first embodiment, where the fixing device 3 includes a slide 31, a spring iii 34, a push rod 35, an arc plate 38, a limiting fixing rod 39, a rotating rod 310, a movable plate ii 311, a fastening bolt ii 312, a limiting rectangular plate 313, a clamping plate 314, and a sliding block iii 315; the sliding seat 31 is fixedly connected to the upper end of the sliding block II 123, a groove I37 is formed in one end, facing the vertical rod 113, of the sliding seat 31, a groove II 36 is formed in the top end of the sliding seat 31, the groove I37 is communicated with the groove II 36, a round hole III 32 in sliding fit with the transmission rod 211 is further formed in the top end of the sliding seat 31, and a sliding way 33 is formed in the side face of the groove II 36; one end of the push rod 35 is in sliding fit with the slideway 33, and the other end of the push rod 35 is fixedly connected with an arc-shaped plate 38; one end of the spring III 34 is fixedly connected in the slideway 33, and the other end of the spring III 34 is fixedly connected to the push rod 35; the arc-shaped plate 38 is in sliding fit with the groove I37; the limit rectangular plate 313 is fixedly connected to the side surface of the push rod 35; the rotating rod 310 is connected in the groove II 36 through a central shaft, and a coil spring is sleeved on the central shaft; the limit fixing rod 39 is fixedly connected to the upper end of the sliding seat 31, and a limit groove is formed in the side surface of the limit fixing rod 39; the clamping plate 314 is positioned at the upper end of the limiting fixed rod 39, a sliding block III 315 is arranged on the clamping plate 314, and the sliding block 315 is in sliding fit with the limiting groove; the movable plate II 311 is connected to the side surface of the clamping plate 314 through a fastening bolt II 312; when the rotating rod 310 is in a vertical state, the part of the rotating rod 310 at the lower end of the center shaft is in contact with the limit rectangular plate 313, and the part of the rotating rod 310 at the upper end of the center shaft is in contact with the clamping plate 314; one end of the oiled paper 4 is clamped between the movable plate I111 and the vertical rod 113, and the other end of the oiled paper 4 is clamped between the clamping plate 314 and the movable plate II 311. When the arc 38 does not contact the gear II 122, the oilpaper 4 drags the whole fixing device 3 to move towards the direction of the vertical rod 113, when the arc 38 contacts the gear II 122 and is completely positioned in the groove I37, the clamping plate 314 and the movable plate II 311 move towards the direction of the vertical rod 113 along the limit fixed rod 39, so that the oilpaper 4 is wound on the vertical rod 113 as long as possible, and the detection quality is ensured.
Eighth embodiment: as shown in fig. 1 to 9, the present embodiment describes a method for using an oiled paper insulating surface charge measuring device, the method comprising the steps of:
step one: one end of the oiled paper 4 is clamped between the movable plate I111 and the vertical rod 113, and the other end of the oiled paper 4 is clamped between the clamping plate 314 and the movable plate II 311;
step two: starting a motor 119, wherein the motor 119 drives the vertical rod 113 to rotate, and the oilpaper 4 is wound on the outer circular surface of the vertical rod 113;
step three: the motor 119 is started and the detection probe 19 is turned on to collect data.
Detailed description nine: as shown in fig. 1 to 9, this embodiment is further described with reference to the eighth embodiment, in which when the length of the oiled paper 4 is too long, the restricting device 2 is turned to fully spread the oiled paper 4 and reduce wrinkles.
The working principle of the invention is as follows: when the invention is used, one end of the oilpaper 4 is clamped between the movable plate I111 and the vertical rod 113, the other end of the oilpaper 4 is clamped between the clamping plate 314 and the movable plate II 311, the oilpaper 4 is respectively clamped by the fastening bolt I112 and the fastening bolt II 312, then the motor 119 is started, the motor 119 drives the gear II 122 to rotate, the vertical rod 113 is further driven to rotate, the vertical rod 113 winds the oilpaper 4 on the outer circular surface of the vertical rod 113, the other end of the oilpaper 4 drives the clamping plate 314 and the movable plate II 311 to move towards the direction of the vertical rod 113, the clamping plate 314 and the movable plate II 311 push the rotating rod 310, the lower end of the rotating rod 310 is contacted with the limit rectangular plate 313, meanwhile, the limit rectangular plate 313 is fixedly connected with the push rod 35, the spring III 34 fixedly connected with the push rod 35 is in a compressed state, therefore, the push rod 35 and the limit rectangular plate 313 cannot slide into the slide way 33 under the elastic force of the spring III 34, therefore, the clamping plate 314 and the movable plate II 311 cannot slide relative to the limit fixed rod 39, so that the clamping plate 314 and the movable plate II 311 push the rotating rod 310 to move, the sliding seat 31 is driven to slide through the central shaft of the rotating rod 310, the sliding seat 31 drives the sliding block II 123 to slide, the sliding block II 123 compresses the spring I121 until the arc plate 38 contacts with the gear II 122, the gear II 122 pushes the arc plate 38 to slide towards the sliding seat 31, the sliding seat 31 pushes the push rod 35 to further compress the spring III 34, meanwhile, the limit rectangular plate 313 is driven to move, the limit rectangular plate 313 moves, the rotating rod 310 rotates under the pushing of the clamping plate 314 and the movable plate II 311, when the arc plate 38 completely moves into the groove I37, the limit fixed rod 39 is propped against the outer side of the gear II 122, and at the moment, the clamping plate 314 and the movable plate II slide relative to the limit fixed rod 39 towards the direction of the vertical rod 113, so that the oilpaper 4 is spirally wound on the vertical rod 113, when the vertical rod 113 rotates to wind the oiled paper 4 on the outer side of the oiled paper, the gear II 122 also drives the gear I13 to rotate, the gear I13 drives the screw rod 110 to rotate, the screw rod 110 drives the connecting ring 18 to move downwards, and further the detection probe 19 is driven to move downwards along with the winding of the oiled paper 4, so that the distance between the detection probe 19 and the oiled paper 4 is kept unchanged, and meanwhile, the oiled paper 4 is always in a tensioning state under the influence of the elasticity of the spring I121, so that wrinkles when the oiled paper 4 is wound on the vertical rod 113 can be reduced, and the influence on a detection structure is avoided;
when the oilpaper 4 is overlong, after two ends of the oilpaper 4 are clamped, the middle position of the oilpaper 4 is placed between the two movable rods 27, then the connecting rod 22 is manually rotated, the connecting rod 22 drives the limiting rod 24 to rotate, the limiting rod 24 drives the sliding rod 26 and the movable rods 27 to move through the through holes 25, when the limiting rod 24 drives the sliding rod 26 to move, as the sliding rod 26 always contacts with the short shaft of the limiting baffle 116, when the sliding rod 26 moves towards the long shaft of the limiting baffle 116, the distance between the two movable rods 27 is increased, the movable rods 27 can prop open the longer oilpaper 4, the oilpaper 4 is propped open in a mode shown in fig. 9, the connecting rod 22 also drives the gear III 21 to rotate, the gear III 21 drives the gear IV 29 to rotate, the threaded cylinder 210 is driven by the gear IV 29 to rotate, then the transmission rod 211 is driven to move downwards, the transmission rod 211 is inserted into the round hole III for limiting the movement of the fixing device 3, when the detection is needed, the motor 119 is started, the hand holding the connecting rod 22 is slowly released, the rotation speed of the connecting rod 22 is controlled through friction force between the hand and the connecting rod 22, the fact that the rotation speed of the connecting rod 22 is too fast, the oilpaper 4 is propped open in a mode, and when the oilpaper 4 is required to be folded in a linear mode, and the situation that the oilpaper is not needed to be folded can be avoided, and the situation can be only be folded when the situation is needed is avoided, and the situation is needed is when the paper is needed to be folded.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. An oiled paper insulating surface charge measuring device, characterized in that: comprises a base (1), a limiting device (2) and a fixing device (3); the upper end of the base (1) is provided with a limiting device (2) and a fixing device (3);
the base (1) comprises a support column (11), a bottom plate (12), a gear I (13), a support rod (14), a sliding block I (16), a connecting rod (17), a connecting ring (18), a detection probe (19), a screw rod (110), a movable plate I (111), a fastening bolt I (112), a vertical rod (113), an L-shaped support plate (114), a limiting baffle (116), a limiting block (117), a motor (119), a spring I (121), a gear II (122), a sliding block II (123) and a clamping block (124); the lower end of the bottom plate (12) is fixedly connected with a support column (11), one side of the top end of the bottom plate (12) is fixedly connected with a support rod (14), the other side of the top end of the bottom plate (12) is fixedly connected with an L-shaped support plate (114), and one side of the top end of the bottom plate (12) close to the L-shaped support plate (114) is provided with a sliding groove I (120); one end of the spring I (121) is fixedly connected in the chute I (120); the gear I (13) is movably connected to the upper end of the bottom plate (12) through a center shaft, and the upper end of the gear I (13) is fixedly connected with a screw rod (110); the connecting ring (18) is connected to the screw rod (110) through threads, and a connecting rod (17) and a detection probe (19) are fixedly connected to the outer circular surface of the connecting ring (18); the other end of the connecting rod (17) is fixedly connected with a sliding block I (16); a sliding groove II (15) is arranged on the side surface of the supporting rod (14), and the sliding groove II (15) is in sliding fit with the sliding block I (16); the motor (119) is fixedly connected to the lower end of the bottom plate (12) through a bracket, an output shaft of the motor (119) penetrates through the bottom plate (12) and is fixedly connected with a gear II (122), the gear II (122) is meshed with the gear I (13), the upper end of the gear II (122) is fixedly connected with a vertical rod (113), and the side face of the vertical rod (113) is fixedly connected with a movable plate I (111) through a fastening bolt I (112); a round hole I (115) and a round hole II (118) are formed in the horizontal end of the L-shaped support plate (114), and a limiting block (117) is fixedly connected to the inner wall of the round hole I (115); the limit baffle (116) is fixedly connected to the lower end of the L-shaped support plate (114); the sliding block II (123) is in sliding fit with the sliding groove I (120), and the other end of the spring I (121) is fixed on the side face of the sliding block II (123); the clamping block (124) is fixedly connected to the side face of the L-shaped support plate (114);
the limiting device (2) comprises a gear III (21), a connecting rod (22), a limiting rod (24), a slide rod (26), a movable rod (27), a spring II (28), a gear IV (29), a thread cylinder (210) and a transmission rod (211); the connecting rod (22) is connected with a gear III (21) through a key, the lower end of the connecting rod (22) is fixedly connected with a limiting rod (24), and an arc-shaped groove (23) is formed in the outer circular surface of the connecting rod (22); two vertical through holes (25) are symmetrically formed in the limiting rod (24); the upper end of the movable rod (27) is fixedly connected with a slide rod (26), and the slide rod (26) is in sliding fit with the through hole (25); one end of the spring II (28) is fixedly connected in the through hole (25), and the other end of the spring II (28) is fixedly connected to the side face of the slide rod (26); the lower end of the gear IV (29) is fixedly connected with a thread cylinder (210), and the gear IV (29) is meshed with the gear III (21); the transmission rod (211) is positioned in the threaded cylinder (210), the transmission rod (211) is in threaded fit with the threaded cylinder (210), a sliding rail (212) parallel to the central shaft is further arranged on the outer circular surface of the transmission rod (211), and the sliding rail (212) is in sliding fit with the clamping block (124); the connecting rod (22) is connected in the round hole I (115) through a bearing, and the arc-shaped groove (23) is in sliding fit with the limiting block (117); the thread cylinder (210) is connected in the round hole II (118) through a bearing; the spring II (28) is always in a stretched state; the sliding rod (26) is always contacted with the outer side surface of the limit baffle (116) under the elastic force of the spring II (28);
the fixing device (3) comprises a sliding seat (31), a spring III (34), a push rod (35), an arc-shaped plate (38), a limiting fixed rod (39), a rotating rod (310), a movable plate II (311), a fastening bolt II (312), a limiting rectangular plate (313), a clamping plate (314) and a sliding block III (315); the sliding seat (31) is fixedly connected to the upper end of the sliding block II (123), a groove I (37) is formed in one end, facing the vertical rod (113), of the sliding seat (31), a groove II (36) is formed in the top end of the sliding seat (31), the groove I (37) is communicated with the groove II (36), a round hole III (32) in sliding fit with the transmission rod (211) is further formed in the top end of the sliding seat (31), and a slide way (33) is formed in the side face of the groove II (36); one end of the push rod (35) is in sliding fit with the slide way (33), and the other end of the push rod (35) is fixedly connected with an arc-shaped plate (38); one end of the spring III (34) is fixedly connected in the slideway (33), and the other end of the spring III (34) is fixedly connected on the push rod (35); the arc-shaped plate (38) is in sliding fit with the groove I (37); the limiting rectangular plate (313) is fixedly connected to the side face of the push rod (35); the rotating rod (310) is connected in the groove II (36) through a central shaft, and a coil spring is sleeved on the central shaft; the limiting fixing rod (39) is fixedly connected to the upper end of the sliding seat (31), and a limiting groove is formed in the side face of the limiting fixing rod (39); the clamping plate (314) is positioned at the upper end of the limiting fixed rod (39), a sliding block III (315) is arranged on the clamping plate (314), and the sliding block III (315) is in sliding fit with the limiting groove; the movable plate II (311) is connected to the side surface of the clamping plate (314) through a fastening bolt II (312); when the rotating rod (310) is in a vertical state, the part of the rotating rod (310) positioned at the lower end of the center shaft is contacted with the limiting rectangular plate (313), and the part of the rotating rod (310) positioned at the upper end of the center shaft is contacted with the clamping plate (314); one end of the oiled paper (4) is clamped between the movable plate I (111) and the vertical rod (113), and the other end of the oiled paper (4) is clamped between the clamping plate (314) and the movable plate II (311).
2. The oiled paper insulation surface charge measuring device according to claim 1, wherein: the limiting baffle (116) is in an elliptical ring shape, and an included angle smaller than 90 degrees exists between the long axis of the limiting baffle (116) and the side line of the horizontal end of the L-shaped support plate (114).
3. An oiled paper insulation surface charge measuring device according to claim 2, characterized in that: the detection probe (19) is located between the screw (110) and the vertical rod (113), and the detection probe (19) faces the vertical rod (113).
4. A oiled paper insulation surface charge measuring device according to claim 3, characterized in that: the central angle corresponding to the arc-shaped groove (23) is smaller than or equal to 90 degrees.
5. The method for using an oiled paper insulation surface charge measuring device according to claim 4, wherein: the using method comprises the following steps:
step one: one end of the oiled paper (4) is clamped between the movable plate I (111) and the vertical rod (113), and the other end of the oiled paper (4) is clamped between the clamping plate (314) and the movable plate II (311);
step two: starting a motor (119), wherein the motor (119) drives the vertical rod (113) to rotate, and the oilpaper (4) is wound on the outer circular surface of the vertical rod (113);
step three: the motor (119) is started and the detection probe (19) is turned on to collect data.
6. The method for using an oiled paper insulation surface charge measuring device according to claim 5, wherein: when the length of the oiled paper (4) is too long, the limiting device (2) is rotated, so that the oiled paper (4) is completely unfolded, and wrinkles are reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111129541.0A CN113848396B (en) | 2021-09-26 | 2021-09-26 | Device and method for measuring electric charge on insulating surface of oiled paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111129541.0A CN113848396B (en) | 2021-09-26 | 2021-09-26 | Device and method for measuring electric charge on insulating surface of oiled paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113848396A CN113848396A (en) | 2021-12-28 |
| CN113848396B true CN113848396B (en) | 2024-04-05 |
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Family Applications (1)
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