CN214407376U

CN214407376U - A test instrument that is used for transformer brush to glue surface smoothness

Info

Publication number: CN214407376U
Application number: CN202023021124.8U
Authority: CN
Inventors: 董威威; 王祥军; 孙海超; 王书光; 胡柳亮; 程笑飞
Original assignee: Ningbo Zhongchao New Material Co ltd
Current assignee: Ningbo Zhongchao New Material Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-15
Anticipated expiration: 2030-12-15

Abstract

The utility model relates to a detect technical field, especially relate to a test instrument that is used for transformer brush to glue surface smoothness, monochromatic light structure is used for shining monochromatic light on the second grade plate crystal, adjusts the round support angle makes the second grade plate crystal with brush to glue and form a wedge-shaped air lamina between the face, under monochromatic light of monochromatic light structure shines, from the upper and lower surface reflected double-phase dry beam of air lamina, can be in air lamina surface formation region uniform thickness interference fringe, according to the characteristics of uniform thickness interference fringe, thereby realize the measurement of the brush face flatness of iron core under test, each vernier on this test instrument is all movable moreover, consequently can realize measuring the iron core of unidimensional through adjusting the slide bar, can measure the brush face of gluing of each different positions on the iron core again to avoid detecting and omitting, the efficiency is improved.

Description

A test instrument that is used for transformer brush to glue surface smoothness

Technical Field

The utility model relates to a detect technical field, especially relate to a test instrument that is used for transformer brush to glue surface smoothness.

Background

The surface flatness of the brush glue of the transformer iron core directly influences the insulation of the transformer iron core, and the insulation of the transformer iron core is determined by the thinner part of the brush glue, so the insulation of the thinner part of the glue is easy to damage, and the appearance of the damaged part has no obvious performance; in addition, the glue brushing position has great influence on the parameters of the transformer core, and the transformer parameters influence the loss of the transformer core and the generation of transformer excitation; even if the glue brushing position is important, the glue brushing quality is still lack of detection in the industry of the transformer core at present, and no method for quantifying the influence of the glue brushing on each performance of the transformer exists, so that the quantification of the flatness of the glue brushing is particularly important for transformer cores with high insulation requirements, poor working environments, high noise requirements and low loss.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model discloses a solve the not enough in transformer core brush glue surface flatness detection technique, provide a test instrument for transformer brush glue surface flatness.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a testing instrument for flatness of a glue brushing surface of a transformer comprises a base, wherein the base comprises a base clamp, the base clamp comprises a first base clamp and a second base clamp, the first base clamp is connected with the second base clamp through a connecting rod, a tested iron core is placed between the first base clamp and the second base clamp, a first vernier and a second vernier are sleeved on the connecting rod, through holes are formed in the upper surface and the lower surface of the first vernier and the lower surface of the second vernier, the two bases are connected through sliding rods inserted in the through holes, the sliding rods are divided into a front rod and a rear rod, the front rod is inserted in the through hole of the first vernier, the rear rod is inserted in the through hole of the second vernier, a third vernier is sleeved on the front rod, a tray is connected to the third vernier, the tray comprises a round tray, the round tray is provided with a second-level flat crystal and is placed on the glue brushing surface of the tested iron core, the circle hold in the palm through the bracket with the third vernier is connected, the bracket can be used for adjusting the angle that the circle held in the palm, the fourth vernier has been cup jointed on the back pole, be connected with the monochromatic light lamp structure on the fourth vernier, the monochromatic light lamp structure is used for shining monochromatic light on the second grade plane crystal, adjusts the circle holds in the palm the angle and makes the second grade plane crystal with glue brushing surface interval forms a wedge-shaped air lamina under the monochromatic light of monochromatic light lamp structure shines, follows the double-phase dry beam of upper and lower surface reflection of air lamina can air lamina surface forms the equal thickness interference fringe in region, according to the characteristics of equal thickness interference fringe, thereby realizes being surveyed the measurement of the brush face of iron core plane degree.

By adopting the technical scheme, the measured iron core is placed between the two bases and is clamped in the first base clamp and the second base clamp, the slide rod is inserted in the through holes of the first vernier and the second vernier, so the distance between the two bases can be realized by adjusting the slide rod, the round support is connected with the third vernier on the front rod through the bracket, the second-stage flat crystal is arranged in the round support, the whole round support is placed on the glue brushing surface of the measured iron core, a wedge-shaped air thin layer is formed between the second-stage flat crystal and the glue brushing surface by adjusting the bracket, the monochromatic light structure is connected with the fourth vernier of the rear rod, the monochromatic light irradiated by the monochromatic light structure irradiates on the second-stage flat crystal, so that two-phase dry light beams are reflected on the upper surface and the lower surface of the air thin layer, and regional equal-thickness interference fringes are formed on the surface of the air thin layer, and the flatness measurement of the glue brushing surface of the measured iron core is realized according to the characteristics of the equal-thickness interference fringes, and above-mentioned each vernier all can remove, consequently can realize measuring the iron core of not unidimensional through adjusting the slide bar, can measure the brush face of gluing of each different position on the iron core again to avoid detecting and miss, raise the efficiency.

Further, a threaded hole is formed in the lower portion of the second base clamp, a large screw rod is connected to the threaded hole in an internal thread mode, a conical body is connected to one end of the large screw rod and used for limiting the large screw rod to be prevented from falling out, and the large screw rod is used for clamping the measured iron core.

Through adopting above-mentioned technical scheme, the setting of big screw rod can be used to fix the measured iron core of placing in first base clamp and second base clamp to play fixed effect, with the stability when improving the detection.

Further, a round hole is formed in the surface of the other end of the large screw, and a small screw is inserted into the round hole, so that the small screw is shaken and the large screw is driven to clamp the iron core to be tested.

Through adopting above-mentioned technical scheme, the setting up of little screw rod makes when rotating big screw rod light convenient more.

The bracket is divided into a bracket with the protractor and a bracket without the protractor, the bracket with the protractor is provided with a protractor, the protractor is fan-shaped, the surface of the protractor is provided with an arc-shaped opening, a support handle of the bracket is clamped in the arc-shaped opening, a rotating shaft is arranged at the circle center of the protractor, the end surface of the rotating shaft is fixedly provided with a pointer, the protractor is connected with the surface of the circular support through the rotating shaft, and a lower rod of the front rod penetrates through the surface of the protractor, so that the circular support can not rotate along with the angle change of the circular support under the positioning of the lower rod when the angle is adjusted, and specific numerical values of the angle change can be checked in the downward direction of the pointer.

Through adopting above-mentioned technical scheme, it takes place the angle transform to rotate the bracket drive circle support, take the protractor on the protractor support to hold in the palm through the pivot and circle and be connected, because the lower beam has been worn on the surface of protractor, thereby it drives the protractor rotation to have restricted when the circle holds in the palm the rotation, hold in the palm the handle for cross-under in the arc opening that the protractor surface was opened has, thereby restriction circle holds in the palm the pivoted number of degrees, the pointer that is equipped with in the pivot can point to the scale on the protractor, thereby when realizing that the circle holds in the palm the rotation, look over the concrete numerical value that the number of degrees changes.

Further set up as, the monochromatic light structure contains the support frame, support frame one end is connected the fourth vernier, the other end joint of support frame is in first adjustable shelf, the other end joint of first adjustable shelf has the right angle frame, the other end joint of right angle frame is in the second adjustable shelf, the other end joint of second adjustable shelf has the lamp stand, thereby realizes the free transform of monochromatic light structure angle.

Through adopting above-mentioned technical scheme, first adjustable shelf and support frame and right-angle frame junction all can realize free rotation, and the second adjustable shelf also is so with lamp stand and right-angle frame junction, then can realize monochromatic light structure angle free variation, can lengthen and shorten.

Further, the lamp holder comprises a lamp shade and a monochromatic lamp, the monochromatic lamp is installed in the lamp shade, and the lamp shade is connected with the second movable frame.

By adopting the technical scheme, the monochromatic light is used for irradiating the secondary flat crystal and the measured iron core, and the lampshade is mainly used for shading light, so that the monochromatic light is conveniently focused on the measured object.

Compared with the prior art, the utility model has the advantages of:

through adopting above-mentioned technical scheme, the monochromatic light that the monochromatic light lamp structure shines on the second grade plate crystal, thereby at the upper and lower surface of air lamina, two-phase dry light beam of lower surface reflection play, and form region uniform thickness interference fringe on air lamina surface, according to the characteristics of uniform thickness interference fringe, thereby realize being surveyed the measurement of the brush face plane degree of gluing of iron core, and each vernier on this tester is all movable, consequently can realize measuring the iron core of unidimensional not through adjusting the slide bar, can measure the brush face of gluing of each different positions on the iron core again, thereby avoid detecting and omit, high efficiency.

Drawings

FIG. 1 is a schematic view of the whole testing instrument for flatness of the surface of the transformer coated with the adhesive of the present invention;

FIG. 2 is a schematic view of a tray according to the present invention;

FIG. 3 is a schematic view of a monochromatic light structure in the present invention;

fig. 4 is a schematic view of the lamp socket of the present invention.

Which comprises the following steps: 1. a base; 11. a base clip; 111. a first base clamp; 112. a second base clamp; 1121. a large screw; 1122. a conical body; 1123. a small screw; 12. a connecting rod; 121. a first cursor; 122. a second cursor; 13. a slide bar; 131. a front bar; 1311. a third cursor; 1312. a lower rod; 132. a rear bar; 1321. a fourth cursor; 2. a tray; 21. round support; 22. a bracket; 221. a bracket with a protractor; 222. without the protractor bracket; 2211. an angle gauge; 2212. an arc-shaped opening; 2213. a rotating shaft; 2214. a pointer; 2215. a support handle; 3. a monochromatic light structure; 31. a support frame; 32. a first movable frame; 33. a right-angle frame; 34. a second movable frame; 35. a lamp socket; 351. a lamp shade; 352. a monochromatic lamp.

Detailed Description

As shown in fig. 1 to 4, the utility model discloses a testing instrument for flatness of transformer brushing surface, which comprises a base 1, the base 1 comprises a base clamp 11, the base clamp 11 comprises a first base clamp 111 and a second base clamp 112, the first base clamp 111 is connected with the second base clamp 112 through a connecting rod 12, a tested iron core is placed between the first base clamp 111 and the second base clamp 112, a first cursor 121 and a second cursor 122 are sleeved on the connecting rod 12, through holes are opened on the upper and lower surfaces of the first cursor 121 and the second cursor 122, two bases 1 are connected with each other through a sliding rod 13 inserted in the through holes, the sliding rod 13 is divided into a front rod 131 and a rear rod 132, the front rod 131 is inserted in the through hole of the first cursor 121, the rear rod 132 is inserted in the through hole of the second cursor 122, a third rod 1311 is sleeved on the front rod 131, the third rod 1311 is connected with a tray 2, the tray 2 comprises a circular tray 21, the round support 21 is provided with a second-level flat crystal and is placed on the glue brushing surface of the iron core to be measured, the round support 21 is connected with a third vernier 1311 through a bracket 22, the bracket 22 can be used for adjusting the angle of the round support 21, a fourth vernier 1321 is sleeved on the rear rod 132, a monochromatic light structure 3 is connected on the fourth vernier 1321, the monochromatic light structure 3 is used for irradiating monochromatic light on the second-level flat crystal, a wedge-shaped air thin layer is formed between the second-level flat crystal and the glue brushing surface by adjusting the angle of the round support 21, two dry light beams reflected from the upper surface and the lower surface of the air thin layer can form regional equal-thickness interference fringes on the surface of the air thin layer under the irradiation of the monochromatic light structure 3, the iron core to be measured is placed between two bases 1 and is clamped in the first base clamp 111 and the second base clamp 112, because the sliding rod 13 is inserted into the through holes of the first cursor 121 and the second cursor 122, the distance between the two bases 1 can be realized by adjusting the sliding rod 13, the circular support 21 is connected with the third cursor 1311 on the front rod 131 through the bracket 22, the circular support 21 is internally provided with a secondary flat crystal, the whole circular support 21 is placed on the glue brushing surface of the iron core to be measured, a wedge-shaped air thin layer is formed between the secondary flat crystal and the glue brushing surface by adjusting the bracket 22, the monochromatic light structure 3 is connected with the fourth cursor 1321 of the rear rod 132, the monochromatic light irradiated by the monochromatic light structure 3 is irradiated on the secondary flat crystal, so that two dry light beams are reflected on the upper surface and the lower surface of the air thin layer, an interference fringe with equal thickness is formed on the surface of the air thin layer, the measurement of the flatness of the glue brushing surface of the iron core to be measured can be realized according to the characteristics of the interference fringe with equal thickness, and all the above all can be moved, therefore, the iron cores with different sizes can be measured by adjusting the sliding rod 13, and the glue brushing surfaces of different positions on the iron cores can be measured, so that detection omission is avoided, and the efficiency is improved.

The lower part of the second base clamp 112 is provided with a threaded hole, a large screw 1121 is connected with the threaded hole in a threaded manner, one end of the large screw 1121 is connected with a conical body 1122, the conical body 1122 is used for limiting the large screw 1121 from falling out, the large screw 1121 is used for clamping a tested iron core, the large screw 1121 is arranged and can be used for fixing the tested iron core placed in the first base clamp 111 and the second base clamp 112, and therefore the fixing effect is achieved, and the stability during detection is improved.

Open on the surface of big screw 1121 the other end has the round hole, it has little screw 1123 to peg graft on the round hole to the realization rocks little screw 1123 and drives big screw 1121 and carries out the centre gripping to being surveyed the iron core, and the setting up of little screw 1123 makes and rotates big screw 1121 more light convenient.

The bracket 22 is divided into a bracket 221 with a protractor and a bracket 222221 without the protractor, the bracket 221 with the protractor is provided with an angle gauge 2211, the angle gauge 2211 is fan-shaped, the surface of the angle gauge 2211 is provided with an arc opening 2212, a holder 2215 of the bracket 22 is clamped in the arc opening 2212, the center of the circle of the angle gauge 2211 is provided with a rotating shaft 2213, the end surface of the rotating shaft 2213 is fixed with a pointer 2214, the angle gauge 2211 is connected with the surface of the round bracket 21 through the rotating shaft 2213, the lower rod 1312 of the front rod 131 penetrates through the surface of the angle gauge 2211, so that when the angle of the round bracket 21 is adjusted, the angle gauge 2211 cannot rotate along with the angle change of the round bracket 21 under the positioning of the lower rod 1312, the specific value of the angle change is checked when the pointer 2214 points downwards, the bracket 22 is rotated to drive the round bracket 21 to generate angle change, the angle gauge 1 on the bracket 221 with the protractor is connected with the round bracket 21 through the rotating shaft 2213, thereby restricted thereby when the circle holds in the palm 21 and rotates to drive protractor 2211 and rotate, hold in the palm handle 2215 for wearing to connect in protractor 2211 surface division have an arc opening 2212 to the restriction circle holds in the palm 21 pivoted number of degrees, pointer 2214 that is equipped with on the pivot 2213 can point to the scale on the protractor 2211, thereby realizes that the circle holds in the palm 21 when rotating, looks over the concrete numerical value that the number of degrees changes.

Monochromatic light structure 3 contains support frame 31, fourth vernier 1321 is connected to support frame 31 one end, the other end joint of support frame 31 is in first adjustable shelf 32, the other end joint of first adjustable shelf 32 has right angle frame 33, the other end joint of right angle frame 33 is in second adjustable shelf 34, the other end joint of second adjustable shelf 34 has lamp stand 35, thereby realize the free transform of 3 angles of monochromatic light structure, first adjustable shelf 32 all can realize free rotation with support frame 31 and right angle frame 33 junction, second adjustable shelf 34 also is so with lamp stand 35 and right angle frame 33 junction, then can realize 3 angle free changes of monochromatic light structure, can lengthen and shorten.

The lamp holder 35 includes a lamp housing 351 and a monochromatic lamp 352, the monochromatic lamp 352 is installed in the lamp housing 351, the lamp housing 351 is connected with the second movable frame 34, the monochromatic lamp 352 is used for irradiating monochromatic light on the second-level flat crystal and the iron core to be measured, and the lamp housing 351 is mainly used for shading light, so that the monochromatic lamp 352 is focused on the object to be measured.

The implementation principle of the embodiment is as follows: the distance between the sliding rods 13 is adjusted according to the size of the iron core to be measured, then the iron core to be measured is placed in the two bases 1 and clamped between the first base clamp 111 and the second base clamp 112, the iron core to be measured is firmly clamped by rotating the small screw 1123 connected to the large screw 1121, the second-level flat crystal is placed in the round support 21, then the first cursor 121 is adjusted to drive the front rod 131 to move on the connecting rod 12 to find the position to be detected corresponding to the iron core to be measured, if the position of the tray 2 is not accurate, the third cursor 1311 can be adjusted to move, the round support 21 with the second-level flat crystal placed is placed on the glue brushing surface to be measured, a wedge-shaped air thin layer is formed between the second-level flat crystal and the glue brushing surface by adjusting the bracket 22, then the second cursor 122 is moved to drive the rear rod 132, so that the distance between the monochromatic light structure and the tray 2 is in a proper position, then adjust the fourth cursor 1321, make the monochromatic light structure and tray 2 in a horizontal line, then adjust the first movable shelf 32 and second movable shelf 34, make the lamp holder 35 in the appropriate position above the tray 2, turn on the monochromatic light 352, make its monochromatic light 352 light struck on the level two flat crystal, thus reflect two dry light beams on the upper, lower surface of the air lamina, thus form the interference fringe of equal thickness of the region on the surface of the air lamina, if the measured surface is flat, the each point that the air layer thickness is the same is located on a straight line, therefore, the interference fringe produced is parallel; if some parts of the measured surface are uneven, the points with the same air layer thickness are not positioned on the same straight line any more, so that the generated interference fringes are required to be bent, and the flatness measurement of the glue brushing surface of the measured iron core is realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The testing instrument for the surface flatness of the brushed adhesive of the transformer is characterized by comprising a base (1), wherein the base (1) comprises a base clamp (11), the base clamp (11) comprises a first base clamp (111) and a second base clamp (112), the first base clamp (111) is connected with the second base clamp (112) through a connecting rod (12), a tested iron core is placed between the first base clamp (111) and the second base clamp (112), a first vernier (121) and a second vernier (122) are sleeved on the connecting rod (12), through holes are formed in the upper surface and the lower surface of the first vernier (121) and the lower surface of the second vernier (122), two bases (1) are connected through sliding rods (13) inserted in the through holes, the sliding rods (13) are divided into front rods (131) and rear rods (132), the front rods (131) are inserted in the through holes of the first vernier (121), the rear rod (132) is inserted into the through hole of the second cursor (122), the front rod (131) is sleeved with a third cursor (1311), the third cursor (1311) is connected with a tray (2), the tray (2) comprises a round support (21), the round support (21) supports a second-level flat crystal and is placed on the glue brushing surface of the tested iron core, the round support (21) is connected with the third cursor (1311) through a bracket (22), the bracket (22) can be used for adjusting the angle of the round support (21), the rear rod (132) is sleeved with a fourth cursor (1321), the fourth cursor (1321) is connected with a monochromatic light lamp structure (3), the monochromatic light structure (3) is used for irradiating monochromatic light on the second-level flat crystal, and the angle of the round support (21) is adjusted to enable the second-level flat crystal and the glue brushing surface to form a wedge-shaped thin air layer, under the irradiation of the monochromatic light lamp structure (3), two phases of dry light beams reflected from the upper surface and the lower surface of the air thin layer form regional equal-thickness interference fringes on the surface of the air thin layer, and the flatness of the glue brushing surface of the measured iron core is measured according to the characteristics of the equal-thickness interference fringes.

2. The instrument for testing the surface flatness of the transformer brush paste according to claim 1, wherein a threaded hole is formed in a lower portion of the second base clamp (112), a large screw (1121) is connected to the threaded hole in a threaded manner, a cone (1122) is connected to one end of the large screw (1121), the cone (1122) is used for limiting the large screw (1121) from falling out, and the large screw (1121) is used for clamping the iron core to be tested.

3. The instrument for testing the surface flatness of the transformer brush rubber according to claim 2, wherein a round hole is formed in the surface of the other end of the large screw rod (1121), and a small screw rod (1123) is inserted into the round hole, so that the small screw rod (1123) is shaken and the large screw rod (1121) is driven to clamp the tested iron core.

4. The testing apparatus for the surface flatness of the transformer coating according to claim 3, wherein the bracket (22) is divided into a bracket with a protractor (221) and a bracket without the protractor (222), the bracket with the protractor (221) is provided with a protractor (2211), the protractor (2211) is in a sector shape, the surface of the protractor (2211) is provided with an arc-shaped opening (2212), a support handle (2215) of the bracket (22) is clamped in the arc-shaped opening (2212), a rotating shaft (2213) is arranged at the center of the circle of the protractor (2211), an indicator (2214) is fixed on the end surface of the rotating shaft (2213), the protractor (2211) is connected with the surface of the circular support (21) through the rotating shaft (2213), and a lower rod (1312) of the front rod (131) penetrates through the surface of the protractor (2211), so as to realize the angular adjustment of the circular support (21), under the positioning of the lower rod (1312), the angle gauge (2211) cannot rotate along with the angle change of the circular support (21), so that the specific numerical value of the angle change is checked under the pointing direction of the pointer (2214).

5. The testing instrument for the surface flatness of the transformer brushing adhesive is characterized in that the monochromatic light structure (3) comprises a support frame (31), one end of the support frame (31) is connected with the fourth vernier (1321), the other end of the support frame (31) is connected in a first movable frame (32) in a clamped mode, the other end of the first movable frame (32) is connected with a right-angle frame (33) in a clamped mode, the other end of the right-angle frame (33) is connected in a second movable frame (34) in a clamped mode, and the other end of the second movable frame (34) is connected with a lamp holder (35) in a clamped mode, so that the free change of the angle of the monochromatic light structure (3) is achieved.

6. The testing apparatus for transformer brushing surface flatness according to claim 5, wherein the lamp holder (35) comprises a lamp housing (351) and a monochromatic lamp (352), the monochromatic lamp (352) is installed in the lamp housing (351), and the lamp housing (351) is connected with the second movable frame (34).