Alignment auxiliary device for insulation paper ring

Abstract

An insulation paper ring alignment auxiliary device belongs to the technical field of transformer production and comprises a positioning portion, a measuring portion, a centering portion and a paper ring, the measuring portion is mounted on the positioning portion, and the centering portion is mounted on the measuring portion. The positioning part comprises a central rod, a first side rod, a second side rod and a compression nut, the two ends of the central rod are hinged to the first side rod and the second side rod respectively, and the central rod, the first side rod and the second side rod form a tangent surrounding structure for the paper ring. The three measuring parts are hinged to the first boss, the second boss and the third boss respectively, each measuring part comprises a rocker arm, a kidney-shaped groove and a hinge hole, the kidney-shaped groove is formed in the front end of each rocker arm, and the hinge hole is formed in the rear end of each rocker arm. The three rocker arms face the inner side, due to the height difference of the three stand columns, the three rocker arms intersect with one another, an enveloping space is formed in the middle of the three kidney-shaped grooves, and the centering part is installed in the enveloping space. The centering part comprises a circular truncated cone, a core rod and a round nut, and the core rod is installed in an enveloping space jointly formed by the three kidney-shaped grooves in a sleeved mode.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer production, and in particular relates to an insulating paper ring alignment auxiliary device. Background Art

[0002] Insulation parts are an important part of transformer products. The production of insulation parts occupies an important workload at the transformer production site. There are many types of insulation parts needed in transformer products. One of the more common and important types of insulation parts is the insulating paper ring, which is usually used as an insulating end ring. When using the insulating end ring, it is necessary to find the center of the paper ring, which is also called the paper ring alignment operation. This operation has an important impact on the subsequent use of the paper ring. At present, the site usually relies on the operator to use the transmission method to align the paper ring. This operation requires high ability and experience of the operator. The industry needs an easy-to-operate paper ring alignment device to assist in completing this operation. Summary of the invention

[0003] The present invention provides an insulating paper ring alignment auxiliary device to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions: An insulating paper ring alignment auxiliary device comprises a positioning part, a measuring part, a centering part and a paper ring, wherein the measuring part is mounted on the positioning part, the centering part is mounted on the measuring part, and the paper ring is located inside the positioning part.

[0005] The positioning part includes a central rod, a first side rod, a second side rod and a clamping nut. The first side rod and the second side rod are hinged at both ends of the central rod, and the central rod, the first side rod and the second side rod jointly form a tangent embracing structure for the paper ring. The central rod has a first column in the middle, a first boss is provided on the top of the first column, and lower flanges are provided at both ends of the central rod, and a rotating shaft is provided on the lower flange. The first side rod has a second column, a second boss is provided on the top of the second column, and a first upper flange is provided at the end of the first side rod. The first upper flange cooperates with the lower flange to realize the installation of the first side rod. The center of the first upper flange has a through hole and is hinged with the rotating shaft. After installation, the distance between the second boss and the rotating shaft is equal to the distance between the first boss and the rotating shaft. The second side rod has a third column, a third boss is provided on the top of the third column, and a second upper flange is provided at the end of the second side rod. The second upper flange cooperates with the lower flange to realize the hinge. After installation, the distance between the third boss and the rotating shaft on this side is equal to the distance between the first boss and the rotating shaft.

[0006] There are three measuring parts, which are hingedly mounted on the first boss, the second boss and the third boss respectively. The measuring part includes a rocker arm, a waist-shaped groove and a hinge hole. The front end of the rocker arm has a waist-shaped groove, and the rear end of the rocker arm has a hinge hole. The hinge hole is hingedly mounted with each boss. The three rocker arms face inward. Due to the height difference of the three columns, the three rocker arms intersect with each other and form an envelope space in the middle of the three waist-shaped grooves. The centering part is installed in the envelope space. The centering part includes a truncated table, a core rod, a laser pen and a round nut. The top of the truncated table has a core rod, and the core rod is sleeved and installed in the envelope space formed by the intersection of the three waist-shaped grooves. The diameter of the core rod is consistent with the caliber of the waist-shaped groove. The laser pen is installed at the bottom of the truncated table, and the top of the core rod has a thread and a round nut is installed.

[0007] Further, the height of the lower flange is half of the central rod.

[0008] Furthermore, the first column, the second column and the third column form a height difference with each other, and the height difference is equal to the thickness of the measuring part, which facilitates the installation of the measuring part.

[0009] Furthermore, a clamping nut is installed on the rotating shaft, and the clamping nut is used to clamp the first side rod, the second side rod and the central rod respectively.

[0010] Furthermore, in order to ensure accurate alignment and centering operations, the widths of the central rod, the first side rod and the second side rod should be consistent. More specifically, the horizontal projection distance between the center of the first boss and the inner side of the central rod, the horizontal projection distance between the center of the second boss and the inner side of the first side rod, and the horizontal projection distance between the center of the third boss and the side wall of the second side rod should be equal.

[0011] Furthermore, in order to ensure the accuracy of the final alignment and centering operation, the side of the top surface of the rocker arm is also provided with a size scale, so that the center of the paper circle can be easily found according to the size scale in the final operation.

[0012] The beneficial effects of the present invention are: The present invention is used for the alignment and centering of the insulating paper ring during the production of the transformer box. It uses a simple geometric principle. The center of the inscribed circle is on the angle bisector. Two sets of angle bisectors are introduced, and the intersection point is the center point. The device is simple and reliable to operate, greatly reduces the labor intensity of the operator, reduces the error rate and improves the alignment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 is an exploded view of the present invention; In the figure: 10. positioning part, 11. central rod, 111. first column, 112. first boss, 113. lower flange, 114. rotating shaft, 12. first side rod, 121. second column, 122. second boss, 123. first upper flange, 13. second side rod, 131. third column, 132. third boss, 133. second upper flange, 14. clamping nut, 20. measuring part, 21. rocker arm, 22. waist-shaped groove, 23. hinge hole, 30. centering part, 31. round table, 32. core rod, 33. laser pen, 34. round nut, 40. paper ring. DETAILED DESCRIPTION

[0014] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0015] See also Figure 1-Figure 3 The insulating paper ring alignment auxiliary device shown includes a positioning part 10, a measuring part 20, a centering part 30 and a paper ring 40. The measuring part 20 is installed on the positioning part 10, the centering part 30 is installed on the measuring part 20, and the paper ring 40 is located inside the positioning part 10.

[0016] The positioning part 10 includes a central rod 11, a first side rod 12, a second side rod 13 and a compression nut 14. The first side rod 12 and the second side rod 13 are hinged at both ends of the central rod 11. The central rod 11, the first side rod 12 and the second side rod 13 together form a tangentially embracing structure for the paper ring 40. The central rod 11 has a first column 111 in the middle, and a first boss 112 is provided on the top of the first column 111. The central rod 11 has lower flanges 113 at both ends, and the height of the lower flange 113 is half of the central rod 11. The lower flange 113 has a rotating shaft 114. The first side bar 12 has a second column 121, the top of the second column 121 has a second boss 122, the end of the first side bar 12 has a first upper flange 123, the first upper flange 123 cooperates with the lower flange 113 to achieve the installation of the first side bar 12, the center of the first upper flange 123 has a through hole and is hinged to the shaft 114, and the distance between the second boss 122 and the shaft 114 after installation is equal to the distance between the first boss 112 and the shaft 114. The second side bar 13 has a third column 131, the top of the third column 131 has a third boss 132, the end of the second side bar 13 has a second upper flange 133, the second upper flange 133 cooperates with the lower flange 113 to achieve hinged connection, and the distance between the third boss 132 and the shaft 114 on this side after installation is equal to the distance between the first boss 112 and the shaft 114. The first column 111, the second column 121 and the third column 131 form a height difference, which is equal to the thickness of the measuring part 20, so as to facilitate the installation of the measuring part 20. The clamping nut 14 is installed on the rotating shaft 114, and the clamping nut 14 respectively clamps the first side rod 12 and the second side rod 13 to the position of the central rod 11. In addition, in order to ensure the accuracy of the alignment and centering operation, the widths of the central rod 11, the first side rod 12 and the second side rod 13 are consistent. More specifically, the horizontal projection distance between the center of the first boss 112 and the inner side of the central rod 11, the horizontal projection distance between the center of the second boss 122 and the inner side of the first side rod 12, and the horizontal projection distance between the center of the third boss 132 and the side wall of the second side rod 13 should be equal.

[0017] There are three measuring parts 20, which are respectively hingedly mounted on the first boss 112, the second boss 122 and the third boss 132. The measuring part 20 includes a rocker arm 21, a waist-shaped groove 22 and a hinge hole 23. The front end of the rocker arm 21 has a waist-shaped groove 22, and the rear end of the rocker arm 21 has a hinge hole 23. The hinge hole 23 is hingedly mounted with each boss. The three rocker arms 21 face inward. Due to the height difference of the three columns, the three rocker arms 21 intersect with each other and an envelope space is formed in the middle of the three waist-shaped grooves 22. The centering part 30 is installed in the envelope space. In addition, in order to accurately perform the final alignment and centering operation, the top side of the rocker arm 21 also has a size scale (not shown in the figure). In the final operation, the size scale is used to facilitate finding the center of the paper ring 40.

[0018] The centering part 30 includes a truncated cone 31, a core rod 32, a laser pen 33 and a round nut 34. The top of the truncated cone 31 is provided with a core rod 32, and the core rod 32 is sleeved and installed in the envelope space formed by the intersection of the three waist-shaped grooves 22. The diameter of the core rod 32 is consistent with the caliber of the waist-shaped grooves 22, so that the core rod 32 is tightly hinged at the intersection of the measuring part 20. The bottom of the truncated cone 31 is provided with a laser pen 33, and the laser pen 33 emits a dot light downward to illuminate the paper ring 40 to indicate the center of the circle. The top of the core rod 32 is provided with a thread and a round nut 34 is installed. On the one hand, the round nut 34 plays a connecting and installing role for the core rod 32. On the other hand, after completing the alignment and centering operation, the round nut 34 is used to press the centering part 30, so as to fix the indicating position of the center of the circle and mark the center position of the circle using an appropriate smearing tool.

[0019] The working principle of the present invention is: first, the clamping nut 14 and the round nut 34 are both in a relaxed state, the entire device is kept in an operating state, the rods are flexible in movement, the paper ring 40 is placed on the side of the central rod 11, and the paper ring 40 is kept tangent to (i.e. in contact with) the inner side of the central rod 11. In addition, the tangent point (contact point) between the paper ring 40 and the central rod 11 is kept as close to the first column 111 as possible. At this time, a suitable pressing block can be placed on the outside of the paper ring 40 to press the paper ring 40, which is convenient for the position of the newspaper paper ring 40, and the paper ring 40 is placed so that the position of the paper ring 40 will not be moved in the subsequent operation process. The first side rod 12 and the second side rod 13 are operated separately, so that the two side rods are tangent to (contact with) the paper ring 40 from their respective directions. At this time, the clamping nut 14 is tightened to keep the relative angles of the several rods fixed. Then operate the centering part 30. Moving the centering part 30 will make the three measuring parts 20 rotate in coordination with each other. During the operation, pay attention to the corresponding relationship between the size scale values ​​on the round nut 34 and the rocker arm 21. Until the size scale values ​​on the round nut 34 and the three rocker arms 21 are equal, the alignment operation is completed. Tighten the round nut 34. At this time, the point where the laser pen 33 shines downward on the paper circle 40 is the center of the paper circle 40. According to simple geometric knowledge, it can be easily found that the device realizes the center alignment operation by using the geometric principle of the intersection of the angle bisectors of two sets of tangent angles.

[0020] The above embodiments mainly illustrate the insulating paper ring alignment auxiliary device of the present invention. Although only limited embodiments and technical features are described, those skilled in the art should understand that the present invention can be implemented in many other forms without departing from its subject matter and scope. Therefore, the embodiments shown are regarded as illustrative rather than restrictive, and the present invention may cover various modifications and replacements without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An insulating paper ring alignment auxiliary device, comprising a positioning part (10), a measuring part (20), a centering part (30) and a paper ring (40), characterized in that: The measuring part (20) is mounted on the positioning part (10), the centering part (30) is mounted on the measuring part (20), the paper ring (40) is located inside the positioning part (10), the positioning part (10) comprises a central rod (11), a first side rod (12), a second side rod (13) and a clamping nut (14), the first side rod (12) and the second side rod (13) are respectively hinged at two ends of the central rod (11), the central rod (11), the first side rod (12) and the second side rod (13) together form a tangent embracing structure for the paper ring (40), the central rod (11) has a first column (111) in the middle, the first column (111) has a first boss (112) on the top, and the central rod (11) has two ends. The first side rod (12) has a lower flange (113) at each end, the lower flange (113) has a rotating shaft (114), the first side rod (12) has a second column (121), the top of the second column (121) has a second boss (122), the end of the first side rod (12) has a first upper flange (123), the first upper flange (123) cooperates with the lower flange (113) to realize the installation of the first side rod (12), the center of the first upper flange (123) has a through hole hinged to the rotating shaft (114), the distance between the second boss (122) and the rotating shaft (114) after installation is equal to the distance between the first boss (112) and the rotating shaft (114), the second side rod (13) has a third column (131), The third column (131) has a third boss (132) at the top, and the second side rod (13) has a second upper flange (133) at the end. The second upper flange (133) cooperates with the lower flange (113) to achieve hinged connection. After installation, the distance between the third boss (132) and the rotating shaft (114) on this side is equal to the distance between the first boss (112) and the rotating shaft (114). The measuring part (20) has three parts, which are hingedly installed on the first boss (112), the second boss (122) and the third boss (132). The measuring part (20) includes a rocker arm (21), a waist-shaped groove (22) and a hinge hole (23). The front end of the rocker arm (21) has a waist-shaped groove (22). The rear end of the rocker arm (21) has a waist-shaped groove (22). The end of the truncated cone (31) is provided with a hinge hole (23), and the hinge hole (23) is hingedly installed with each boss. The three rocker arms (21) intersect each other and an envelope space is formed in the middle of the three waist-shaped grooves (22). A centering part (30) is installed in the envelope space. The centering part (30) includes a truncated cone (31), a core rod (32), a laser pen (33) and a round nut (34). The top of the truncated cone (31) is provided with a core rod (32). The core rod (32) is sleeved and installed in the envelope space formed by the intersection of the three waist-shaped grooves (22). The diameter of the core rod (32) is consistent with the caliber of the waist-shaped grooves (22). The laser pen (33) is installed at the bottom of the truncated cone (31). The top of the core rod (32) is provided with a thread and a round nut (34) is installed.

2. The insulating paper ring alignment auxiliary device according to claim 1, characterized in that: The height of the lower flange (113) is half of the height of the central rod (11).

3. The insulating paper ring alignment auxiliary device according to claim 1, characterized in that: The first column (111), the second column (121) and the third column (131) form a height difference with each other, and the height difference is equal to the thickness of the measuring part (20), so as to facilitate the installation of the measuring part (20).

4. The insulating paper ring alignment auxiliary device according to claim 1, characterized in that: A clamping nut (14) is installed on the rotating shaft (114), and the clamping nut (14) is used to clamp the first side rod (12), the second side rod (13) and the central rod (11) respectively.

5. The insulating paper ring alignment auxiliary device according to claim 1, characterized in that: The horizontal projection distance between the center of the first boss (112) and the inner side of the central rod (11), the horizontal projection distance between the center of the second boss (122) and the inner side of the first side rod (12), and the horizontal projection distance between the center of the third boss (132) and the side wall of the second side rod (13) are equal.

6. The insulating paper ring alignment auxiliary device according to claim 1, characterized in that: The top side of the rocker arm (21) is also provided with a size scale, and the size scale is used to facilitate finding the center of the paper ring (40) in the final operation.

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