Method and gauge for testing a tank insulator

Abstract

The application provides a groove type insulator detection method and gauge, the detection method comprising: taking down the connecting pin of the groove type insulator, inserting it into the detection through hole to detect the first size; inserting the first detection part into the U-shaped groove hole and the flat foot hole respectively to detect the second size; inserting the flat foot of the groove type insulator into the detection through slot to detect the third size; inserting the third detection part into the opening of the U-shaped groove to detect the fourth size; inserting the first mounting column into the flat foot hole to detect the fifth size; inserting the third detection column from the inside of the U-shaped groove opening into the U-shaped groove hole to detect the sixth size; inserting the second mounting column into the U-shaped groove hole to detect the seventh size; aligning the interface between the upper plane of the detection arm and the flat foot cylindrical rod, and checking the position of the flat foot top surface to detect the eighth size. The groove type insulator detection method and gauge provided by the application aim to solve the problem of complex size detection process and inconvenient detection of the groove type insulator in the prior art.

Description

Technical Field

[0001] This invention relates to the field of insulator technology, and in particular to a method and gauge for testing slotted insulators. Background Technology

[0002] Insulators, as a crucial component of power transmission lines, primarily serve electrical insulation and mechanical fixing functions. Disc suspension insulators are the most widely used type, and slotted connections are a common connection method. A slotted connection refers to a connection consisting of flat feet, cap slots (also called U-slots), and connecting pins. Disc suspension insulators with slotted connections are simply called slotted insulators. Slotted insulators are assembled into insulator strings using slotted connections. To ensure interchangeability of insulators or accessories from different manufacturers, standards specify a series of dimensions for slotted connections. These dimensions mainly include eight items: the diameter of the connecting pin, the diameter of the U-slot hole and the flat foot hole, and the thickness of the flat foot. Before slotted insulators are used in power grid installations, sampling inspections are required. Currently, various testing institutions mainly use measuring instruments such as vernier calipers, micrometers, and thickness gauges to check each of the above eight dimensions and compare them with the slotted connection dimensions specified in the standards to determine whether each dimension is within the allowable range. Summary of the Invention

[0003] This invention provides a gauge for testing slotted insulators, aiming to solve the problem that the traditional technology for testing the size of slotted insulators is relatively complicated and inconvenient.

[0004] To address the aforementioned problems, this invention provides a method for testing slotted insulators, applicable to gauges used for testing slotted insulators. The slotted insulator has a U-shaped slot and a connecting pin and a flat foot sequentially inserted into the U-shaped slot along the horizontal and vertical directions. The slotted insulator has a first dimension, a second dimension, a third dimension, a fourth dimension, a fifth dimension, a sixth dimension, a seventh dimension, and an eighth dimension. The first dimension is the diameter d1 of the connecting pin, and the maximum value of the first dimension is d1. max The minimum value is d1 min The second dimension is the diameter d2 of the U-shaped slot and the flat foot hole, and the maximum value of the second dimension is d2. max The minimum value is d2 min The third dimension is the thickness n of the flat foot, and the maximum value of the third dimension is n. max The minimum value is n min The fourth dimension is the length B of the U-shaped groove opening, and the maximum value of the fourth dimension is B. max The minimum value is B min The fifth dimension is the distance m between the bottom end of the flat foot and the extended line of the bottom end of the flat foot hole, and the maximum value of the fifth dimension is m. max The minimum value is m minThe sixth dimension is the distance F between the bottom end of the U-shaped groove and the extended line of the top end of the U-shaped groove hole, and the maximum value of the sixth dimension is F. max The minimum value is F min The seventh dimension is the distance H between the end of the U-shaped groove and the extended line of the top wall of the U-shaped groove hole, and the maximum value of the seventh dimension is H. max The eighth dimension is the length l of the flat foot, and the maximum value of the eighth dimension is l. max ;

[0005] The gauge for testing slotted insulators includes a gauge body and a testing through-hole, a first testing section, a second testing section, a third testing section, a fourth testing section, a fifth testing section, and a sixth testing section, all disposed on the gauge body. The testing through-hole includes a through-hole section and a stop-hole section connected sequentially, and the diameter of the through-hole section is equal to d1. max The diameter of the stop hole section is equal to d1. min The first detection unit includes a first detection column and a second detection column connected in sequence, wherein the diameter of the second detection column is equal to d2. min The diameter of the first detection column is equal to d2. max The second detection unit includes a first detection block disposed on the periphery of the gauge body. The first detection block has a detection through-slot, which includes a rectangular through-slot and a rectangular stop-slot connected in sequence. The width of the rectangular through-slot is equal to n. max The width of the rectangular stop groove is equal to n. min The third detection unit includes a first rectangular column and a second rectangular column connected in sequence, wherein the thickness of the second rectangular column is equal to B. min The thickness of the first rectangular column is equal to B. max The fourth detection unit includes a first mounting plate disposed around the periphery of the gauge body, a second detection block and a first mounting post spaced apart on the first mounting plate, the second detection block having a stepped first sidewall and a second sidewall on the side near the first mounting post, and the distance from the first sidewall to the wall of the first mounting post being equal to m. min The distance from the second sidewall to the first mounting column wall is equal to m. max The fifth detection unit includes a second mounting plate disposed around the periphery of the gauge body and a third detection column disposed on the second mounting plate. The shortest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. min Subtracting the radius of the third detection column, the longest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. maxSubtract the radius of the third detection column; the sixth detection unit includes a third mounting plate disposed on the periphery of the gauge body, and a second mounting column and a third detection block spaced apart on the third mounting plate, wherein the distance between the wall surface of the second mounting column and the third detection block is equal to H. max A detection arm is formed on one side of the detection channel. The detection arm has a rectangular cross-section, and the distance between the end of the detection arm furthest from the gauge body and the bottom wall of the detection channel is equal to l. min ;

[0006] The method for detecting slotted insulators includes:

[0007] Remove the connecting pin of the slotted insulator and insert it into the test through hole to test the first dimension;

[0008] The first detection part is inserted into the U-shaped slot and the flat foot hole respectively to detect the second dimension;

[0009] Remove the flat foot of the slot-type insulator and insert it into the test slot to test the third dimension;

[0010] The third detection unit is inserted into the opening of the U-shaped groove to detect the fourth dimension;

[0011] Insert the first mounting post into the flat foot hole, pull the fourth detection part away from the slot insulator so that the first mounting post is tangent to the flat foot hole, and move the first mounting post up and down to detect the fifth dimension;

[0012] Insert the third detection post into the U-shaped slot hole from inside the U-shaped slot opening, pull the fifth detection part away from the slot insulator so that the third detection post is tangent to the U-shaped slot hole, and rotate the fifth detection part to detect the sixth dimension;

[0013] Insert the second mounting post into the U-shaped slot, pull the sixth detection part away from the slot insulator so that the second mounting post is tangent to the U-shaped slot, and move the second mounting post up and down to detect the seventh dimension;

[0014] Align the interface between the upper plane of the detection arm and the flat-footed cylindrical rod, and check the position of the top surface of the flat foot to detect the eighth dimension.

[0015] The present invention also provides a gauge for testing slotted insulators, which applies the slotted insulator testing method described above. The gauge for testing slotted insulators includes a gauge body and a plurality of testing parts. Each testing part is disposed on the periphery of the gauge body, and each testing part is used to test at least one of the dimensions of the slotted insulator.

[0016] According to the present invention, a gauge for testing slotted insulators is provided, wherein a testing through hole is provided on the main body of the gauge, the testing through hole comprising a through hole section and a stop hole section connected in sequence, the diameter of the through hole section being equal to d1. max The diameter of the stop hole section is equal to d1. min The detection through hole is used to insert a connecting pin to detect the first dimension.

[0017] According to the present invention, a gauge for testing slotted insulators includes a first detection section extending circumferentially from the main body of the gauge. The first detection section includes a first detection post and a second detection post connected in sequence, wherein the diameter of the second detection post is equal to d2. min The diameter of the first detection column is equal to d2. max The second detection column is used to be inserted into the U-shaped slot and the flat foot hole respectively to detect the second dimension.

[0018] According to the present invention, a gauge for testing slotted insulators includes a second testing section extending from the periphery of the gauge body. The second testing section includes a first testing block disposed on the periphery of the gauge body. The first testing block has a testing through slot, which includes a rectangular through slot and a rectangular stop slot connected sequentially. The width of the rectangular through slot is equal to n. max The width of the rectangular stop groove is equal to n. min The rectangular through slot is used to insert a flat foot to detect the third dimension.

[0019] According to the present invention, a gauge for testing slotted insulators includes a third testing section extending circumferentially from the main body of the gauge. The third testing section comprises a first rectangular post and a second rectangular post connected in sequence, the thickness of the second rectangular post being equal to B. min The thickness of the first rectangular column is equal to B. max The second rectangular post is used to be inserted into the U-shaped groove to detect the fourth dimension.

[0020] According to the present invention, a gauge for testing slotted insulators includes a fourth detection section extending circumferentially from the main body of the gauge. The fourth detection section includes a first mounting plate disposed on the circumference of the main body of the gauge, and a second detection block and a first mounting post spaced apart from each other on the first mounting plate. The second detection block has a first sidewall and a second sidewall arranged in a stepped manner on the side near the first mounting post. The distance from the first sidewall to the wall of the first mounting post is equal to m. min The distance from the second sidewall to the first mounting column wall is equal to m. max The second sidewall is used to abut against the end face of the flat foot to detect the fifth dimension.

[0021] According to the present invention, a gauge for testing slotted insulators includes a fifth testing section extending circumferentially from the main body of the gauge. The fifth testing section includes a second mounting plate disposed on the circumference of the main body of the gauge and a third testing post disposed on the second mounting plate. The third testing post is inserted into a U-shaped slot, and the second mounting plate is rotated along the U-shaped slot. The shortest distance between the end of the second mounting plate and the bottom wall of the U-shaped slot is equal to F. min Subtracting the radius of the third detection column, the longest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. max Subtracting the radius of the third detection column, the distance between the second mounting plate and the bottom wall of the U-shaped groove when rotating is used to detect the sixth dimension.

[0022] According to the present invention, a gauge for testing slotted insulators includes a sixth testing section extending circumferentially from the main body of the gauge. The sixth testing section includes a third mounting plate disposed on the circumference of the main body of the gauge, and a second mounting post and a third testing block spaced apart from each other on the third mounting plate. The second mounting post is inserted into a U-shaped slot, and the distance between the wall surface of the second mounting post and the third testing block is equal to H. max The sixth detection unit is used to detect the seventh dimension.

[0023] According to the present invention, a gauge for testing slotted insulators includes a testing arm formed on one side of the testing slot. The testing arm has a rectangular cross-section, and the distance between the end of the testing arm away from the gauge body and the bottom wall of the testing slot is equal to l. min The end face of the detection arm is used to abut against the cylindrical end face of the flat foot to detect the eighth dimension.

[0024] In the technical solution provided by the present invention, by using a gauge for testing slotted insulators, and by setting multiple testing parts on the periphery of the gauge body, an integrated testing of eight testing items of the connection dimensions of slotted insulators can be achieved through one gauge, thereby improving the testing efficiency and accuracy of the dimensions of slotted insulators. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the gauge for testing slotted insulators provided by the present invention;

[0027] Figure 2 yes Figure 1A schematic diagram used for measuring the first dimension;

[0028] Figure 3 yes Figure 1 A schematic diagram used for measuring the second dimension;

[0029] Figure 4 yes Figure 1 A schematic diagram used for measuring the third dimension;

[0030] Figure 5 yes Figure 1 A schematic diagram used for measuring the fourth dimension;

[0031] Figure 6 yes Figure 1 A schematic diagram used for measuring the fifth dimension;

[0032] Figure 7 yes Figure 1 A schematic diagram used for measuring the sixth dimension;

[0033] Figure 8 yes Figure 1 A schematic diagram used for measuring the seventh dimension;

[0034] Figure 9 yes Figure 1 A schematic diagram used for measuring the eighth dimension;

[0035] Figure 10 This is a schematic diagram of the connection dimensions of a slot-type insulator;

[0036] Figure 11 This is a standard drawing of the connection dimensions for slotted insulators;

[0037] Figure 12 This is a flowchart illustrating the slot insulator testing method provided by the present invention.

[0038] Reference numerals: 10: Slot insulator; 20: U-shaped slot; 30: Connecting pin; 40: Flat foot; 100: Gauge for inspecting slot insulators; 110: Gauge body; 111: Inspection through hole; 112: Through hole section; 113: Stop hole section; 120: First inspection part; 121: First inspection post; 122: Second inspection post; 130: Second inspection part; 131: First inspection block; 132: Inspection through slot; 133: Rectangular through slot; 134: Rectangular stop slot; 135 140: Detection arm; 141: Third detection section; 142: Second rectangular column; 150: Fourth detection section; 151: First mounting plate; 152: Second detection block; 153: First mounting column; 154: First side wall; 155: Second side wall; 160: Fifth detection section; 161: Second mounting plate; 162: Third detection column; 170: Sixth detection section; 171: Third mounting plate; 172: Second mounting column; 173: Third detection block. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0042] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] The following is combined Figures 1-12 This invention describes a method and gauge for inspecting slotted insulators. Given the complexity and inconvenience of traditional methods for inspecting the dimensions of slotted insulators, this invention provides a method for inspecting slotted insulators, applicable to gauges used for inspecting slotted insulators. Please refer to [link to relevant documentation]. Figure 10 and Figure 11 The slot-type insulator has a U-shaped slot and connecting pins and flat feet that are sequentially inserted into the U-shaped slot in the horizontal and vertical directions. The slot-type insulator has a first dimension, a second dimension, a third dimension, a fourth dimension, a fifth dimension, a sixth dimension, a seventh dimension, and an eighth dimension. The first dimension is the diameter d1 of the connecting pin, and the maximum value of the first dimension is d1. max The minimum value is d1 min The second dimension is the diameter d2 of the U-shaped slot and the flat foot hole, and the maximum value of the second dimension is d2. max The minimum value is d2 min The third dimension is the thickness n of the flat foot, and the maximum value of the third dimension is n. max The minimum value is n min The fourth dimension is the length B of the U-shaped groove opening, and the maximum value of the fourth dimension is B. max The minimum value is B min The fifth dimension is the distance m between the bottom end of the flat foot and the extended line of the bottom end of the flat foot hole. The maximum value of the fifth dimension is m. maxThe minimum value is m min The sixth dimension is the distance F between the bottom end of the U-shaped groove and the extended line of the top end of the U-shaped groove hole, and the maximum value of the sixth dimension is F. max The minimum value is F min The seventh dimension is the distance H between the end of the U-shaped groove and the extended line of the top wall of the U-shaped groove hole. The maximum value of the seventh dimension is H. max The eighth dimension is the length l of the flat foot, and the maximum value of the eighth dimension is l. max ;

[0045] Please see Figure 1 The gauge for testing slotted insulators includes a gauge body and testing through holes, a first testing section, a second testing section, a third testing section, a fourth testing section, a fifth testing section, and a sixth testing section, all disposed on the gauge body. The testing through holes include sequentially connected through-hole sections and stop-hole sections, with the diameter of the through-hole section equal to d1. max The diameter of the stop hole section is equal to d1. min The first detection unit includes a first detection column and a second detection column connected in sequence, wherein the diameter of the second detection column is equal to d2. min The diameter of the first detection column is equal to d2. max The second inspection unit includes a first inspection block located on the periphery of the gauge body. The first inspection block has an inspection through-slot, which includes a rectangular through-slot and a rectangular stop-slot connected in sequence. The width of the rectangular through-slot is equal to n. max The width of the rectangular stop groove is equal to n. min The third detection unit includes a first rectangular column and a second rectangular column connected in sequence. The thickness of the second rectangular column is equal to B. min The thickness of the first rectangular prism is equal to B. max The fourth inspection unit includes a first mounting plate disposed around the periphery of the gauge body, and a second inspection block and a first mounting post disposed at intervals on the first mounting plate. The second inspection block has a first sidewall and a second sidewall arranged in a stepped manner on the side near the first mounting post. The distance between the first sidewall and the wall of the first mounting post is equal to m. min The distance from the second sidewall to the first mounting column wall is equal to m. max The fifth inspection unit includes a second mounting plate located around the gauge body and a third inspection column located on the second mounting plate. The shortest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. min Subtracting the radius of the third detection column, the longest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. max Subtract the radius of the third detection column; the sixth detection unit includes a third mounting plate disposed around the periphery of the gauge body, and a second mounting column and a third detection block spaced apart on the third mounting plate, wherein the distance between the wall surface of the second mounting column and the third detection block is equal to H. maxA detection arm is formed on one side of the detection channel. The cross-section of the detection arm is rectangular, and the distance between the end of the detection arm furthest from the gauge body and the bottom wall of the detection channel is equal to l. min ;

[0046] Please see Figure 12 The testing methods for slotted insulators include:

[0047] S100. Remove the connecting pin of the slotted insulator and insert it into the test through hole to test the first dimension.

[0048] S200: Insert the first detection part into the U-shaped slot and the flat foot hole respectively to detect the second dimension;

[0049] S300. Insert the flat foot of the slotted insulator into the detection slot to detect the third dimension;

[0050] S400, Insert the third detection unit into the opening of the U-shaped groove to detect the fourth dimension;

[0051] S500: Insert the first mounting post into the flat foot hole, pull the fourth detection part away from the slot insulator so that the first mounting post is tangent to the flat foot hole, and move the first mounting post up and down to detect the fifth dimension;

[0052] S600: Insert the third detection post into the U-shaped slot hole from inside the U-shaped slot opening, pull the fifth detection part away from the slot insulator so that the third detection post is tangent to the U-shaped slot hole, and rotate the fifth detection part to detect the sixth dimension;

[0053] S700: Insert the second mounting post into the U-shaped slot, pull the sixth detection part away from the slot insulator so that the second mounting post is tangent to the U-shaped slot, and move the second mounting post up and down to detect the seventh dimension;

[0054] S800: Align the interface between the upper plane of the detection arm and the flat-footed cylindrical rod, and check the position of the top surface of the flat foot to detect the eighth dimension.

[0055] In the technical solution provided by this invention, by using a gauge for testing slotted insulators, and by setting multiple testing parts on the periphery of the gauge body, eight testing items of the connection dimensions of slotted insulators can be integrated into one gauge, thereby improving the testing efficiency and accuracy of slotted insulator dimensions. For instructions on how to observe the testing results of each testing part, please refer to the following description of the gauge for testing slotted insulators.

[0056] Please see Figure 1Based on the above method, the present invention also provides a gauge 100 for testing slot-type insulators, used to test the dimensions of slot-type insulators 10. The slot-type insulator 10 has a U-shaped slot 20 and a connecting pin 30 and a flat foot 40 that are sequentially inserted into the U-shaped slot 20 in the horizontal and vertical directions. The gauge 100 for testing slot-type connecting insulators includes a gauge body 110 and a plurality of testing parts. Each testing part is located on the periphery of the gauge body 110, and each testing part is used to test at least one dimension of the slot-type connecting insulator 10.

[0057] Specifically, a detection through hole 111 is provided on the main body 110 of the gauge. The detection through hole 111 includes a through hole section 112 and a stop hole section 113 connected in sequence. The diameter of the through hole section 112 is equal to d1. max The diameter of the stop hole section 113 is equal to d1. min Please see Figure 2 During testing, the connecting pin 30 of the slot insulator 10 is first removed and inserted into the test through hole 111. If the connecting pin 30 can pass through the through hole section 112 but cannot pass through the stop hole section 113, then the diameter of the connecting pin 30, i.e., the first dimension, is determined to meet the requirements. In an optional embodiment, for a gauge applicable to the 16C specification slot insulator 10, the diameter of the through hole section 112 is 16.3 mm, and the diameter of the stop hole section 113 is 15.5 mm.

[0058] Please see Figure 3 The gauge body 110 has a first detection section 120 extending around its periphery. The first detection section 120 includes a first detection post 121 and a second detection post 122 connected in sequence. The diameter of the second detection post 122 is equal to d2. min The diameter of the first detection column 121 is equal to d2. max During testing, the first detection part 120 is inserted into the U-shaped slot and the flat foot hole respectively. If the U-shaped slot and the flat foot hole can pass through the second detection post 122 but cannot pass through the first detection post 121, then the U-shaped slot and the flat foot hole are deemed to meet the requirements, that is, the second dimension meets the requirements. In an optional embodiment, for a gauge suitable for a 16C specification slot insulator 10, the diameter of the second detection post 122 is 16.7 mm, and the diameter of the first detection post 121 is 18.3 mm.

[0059] Please see Figure 4 A second detection section 130 extends circumferentially from the gauge body 110. The second detection section 130 includes a first detection block 131 located circumferentially from the gauge body 110. A detection through groove 132 is formed on the first detection block 131. The detection through groove 132 includes a rectangular through groove 133 and a rectangular stop groove 134 connected in sequence. The width of the rectangular through groove 133 is equal to n. max The width of the rectangular stop groove 134 is equal to n. minDuring testing, the flat foot 40 is inserted into the test slot 132. If the thickness of the flat foot 40 can pass through the rectangular slot 133 but not through the rectangular stop slot 134, then the thickness of the flat foot 40 is deemed to meet the requirements, i.e., the third dimension meets the requirements. For gauges applicable to the 16C specification slot-type insulator 10, the slot width of the rectangular slot 133 is 14.3 mm, and the slot width of the rectangular stop slot 134 is 12.7 mm.

[0060] Please see Figure 5 A third detection section 140 extends circumferentially from the gauge body 110. The third detection section 140 includes a first rectangular post 141 and a second rectangular post 142 connected in sequence. The thickness of the second rectangular post 142 is equal to B. min The thickness of the first rectangular column 141 is equal to B. max During testing, the third testing part 140 is inserted into the opening of the U-shaped groove 20. If the opening of the U-shaped groove 20 can pass through the second rectangular post 142 but cannot pass through the first rectangular post 141, then the opening of the U-shaped groove 20 is deemed to meet the requirements, i.e., the fourth dimension meets the requirements. For gauges applicable to the 16C specification slot-type insulator 10, the thickness of the second rectangular post 142 is 17.5mm, and the thickness of the first rectangular post 141 is 20mm.

[0061] Please see Figure 6 A fourth detection section 150 extends circumferentially from the gauge body 110. The fourth detection section 150 includes a first mounting plate 151 disposed on the periphery of the gauge body 110, a second detection block 152 and a first mounting post 153 spaced apart on the first mounting plate 151, and the second detection block 152 has a first sidewall 154 and a second sidewall 155 arranged in a stepped manner on the side near the first mounting post 153. The distance from the first sidewall 154 to the wall surface of the first mounting post 153 is equal to m. min The distance from the second side wall 155 to the wall surface of the first mounting post 153 is equal to m. max During testing, the first mounting post 153 is inserted into the flat foot hole, and the gauge is pulled away from the slot insulator 10 until the first mounting post 153 is tangent to the flat foot hole. Then, the first mounting post 153 is moved up and down. If the flat foot 40 can pass through the gap between the second side wall 155 and the first mounting post 153, but cannot pass through the gap between the first side wall 154 and the first mounting post 153, then the fifth dimension is deemed to meet the requirements. For gauges applicable to the 16C specification slot insulator 10, the diameter of the first mounting post 153 is 16mm, the distance from the second side wall 155 to the wall of the first mounting post 153 is 14.3mm, and the distance from the first side wall 154 to the wall of the first mounting post 153 is 12.7mm.

[0062] Please see Figure 7A fifth detection section 160 extends circumferentially from the gauge body 110. The fifth detection section 160 includes a second mounting plate 161 disposed on the circumference of the gauge body 110 and a third detection post 162 disposed on the second mounting plate 161. The third detection post 162 is used to be inserted into a U-shaped groove, and the second mounting plate 161 is used to rotate along the U-shaped groove. The shortest distance between the end of the second mounting plate 161 and the bottom wall of the U-shaped groove 20 is equal to F. min Subtracting the radius of the third detection column 162, the longest distance between the end of the second mounting plate 161 and the bottom wall of the U-shaped groove 20 is equal to F. max Subtracting the radius of the third detection post 162, the distance between the second mounting plate 161 and the bottom wall of the U-shaped groove 20 during rotation is used to detect the sixth dimension. During testing, the third detection post 162 is inserted into the U-shaped groove hole from inside the opening of the U-shaped groove 20, and the gauge is pulled away from the slot insulator 10 until the third detection post 162 is tangent to the U-shaped groove hole. Then, the gauge is rotated. If the top surface of the second mounting plate 161 and the bottom surface of the opening of the U-shaped groove 20 go from not contacting each other to repelling each other during rotation, the sixth dimension is considered to meet the requirements. For gauges applicable to 16C specification slot insulators 10, the diameter of the third detection post 162 is 16mm, the height is 5mm, the thickness of the second mounting plate 161 is 3mm, and in the axial projection plane of the third detection post 162, the center is 24.9mm from the midpoint (closest point) of the top surface of the second mounting plate 161, and the center is 28.5mm from the corner point (farthest point) of the top surface of the second mounting plate 161.

[0063] Please see Figure 8 A sixth detection section 170 extends from the periphery of the gauge body 110. The sixth detection section 170 includes a third mounting plate 171 disposed on the periphery of the gauge body 110, and a second mounting post 172 and a third detection block 173 spaced apart on the third mounting plate 171. The second mounting post 172 is used to be inserted into a U-shaped slot, and the distance between the wall surface of the second mounting post 172 and the third detection block 173 is equal to H. max The sixth inspection unit 170 is used to inspect the seventh dimension. During inspection, the second mounting post 172 is inserted into the U-shaped slot, and the gauge is pulled away from the slot insulator 10 until the second mounting post 172 is tangent to the U-shaped slot. Then, the second mounting post 172 is moved up and down. If the wall of the U-shaped slot 20 can pass through the gap between the second mounting post 172 and the third inspection block 173, the seventh dimension is deemed to meet the requirements. For gauges applicable to the 16C specification slot insulator 10, the diameter of the second mounting post 172 is 16mm, and the distance between the wall of the second mounting post 172 and the third inspection block 173 is 16.5mm.

[0064] Please see Figure 9A detection arm 135 is formed on one side of the detection channel 132. The cross-section of the detection arm 135 is rectangular. The distance between the end of the detection arm 135 away from the gauge body 110 and the bottom wall of the detection channel 132 is equal to l. min The end face of the testing arm 135 is used to abut against the cylindrical end face of the flat foot 40 to test the eighth dimension. During testing, the interface between the upper plane of the testing arm 135 and the cylindrical rod of the flat foot 40 is aligned. The position of the top surface of the flat foot 40 is then observed. If the top surface of the flat foot 40 extends beyond the bottom wall of the testing slot 132, the eighth dimension is deemed to meet the requirements. For gauges applicable to 16C specification slot-type insulators 10, the distance between the end of the testing arm 135 furthest from the gauge body 110 and the bottom wall of the testing slot 132 is equal to 48 mm.

[0065] Furthermore, the gauge body 110 has a polygonal cross-section so that it has multiple mounting sidewalls, each with a detection section. See also... Figure 1 In the technical solution provided by this invention, the gauge body 110 is a regular hexagon, and a first detection part 120, a second detection part 130, a fourth detection part 150, a fifth detection part 160, a third detection part 140, and a sixth detection part 170 are sequentially provided on the side wall of the gauge body 110. It should be noted that the gauge body 110 can also be selected from other polygons to allow for a larger interval between the detection parts for easier detection, and the arrangement of the detection parts can also be set according to actual needs; this invention does not limit this.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for testing slotted insulators, applied to a gauge for testing slotted insulators, wherein the slotted insulator has a U-shaped slot and a connecting pin and a flat foot sequentially inserted into the U-shaped slot along the horizontal and vertical directions, characterized in that, The slot-type insulator has a first dimension, a second dimension, a third dimension, a fourth dimension, a fifth dimension, a sixth dimension, a seventh dimension, and an eighth dimension. The first dimension is the diameter d1 of the connecting pin, and the maximum value of the first dimension is d1. max The minimum value is d1 min The second dimension is the diameter d2 of the U-shaped slot and the flat foot hole, and the maximum value of the second dimension is d2. max The minimum value is d2 min The third dimension is the thickness n of the flat foot, and the maximum value of the third dimension is n. max The minimum value is n min The fourth dimension is the length B of the U-shaped groove opening, and the maximum value of the fourth dimension is B. max The minimum value is B min The fifth dimension is the distance m between the bottom end of the flat foot and the extended line of the bottom end of the flat foot hole, and the maximum value of the fifth dimension is m. max The minimum value is m min The sixth dimension is the distance F between the bottom end of the U-shaped groove and the extended line of the top end of the U-shaped groove hole, and the maximum value of the sixth dimension is F. max The minimum value is F min The seventh dimension is the distance H between the end of the U-shaped groove and the extended line of the top wall of the U-shaped groove hole, and the maximum value of the seventh dimension is H. max The eighth dimension is the length l of the flat foot, and the maximum value of the eighth dimension is l. max ; The gauge for testing slotted insulators includes a gauge body and a testing through-hole, a first testing section, a second testing section, a third testing section, a fourth testing section, a fifth testing section, and a sixth testing section, all disposed on the gauge body. The testing through-hole includes a through-hole section and a stop-hole section connected sequentially, and the diameter of the through-hole section is equal to d1. max The diameter of the stop hole section is equal to d1. min The first detection unit includes a first detection column and a second detection column connected in sequence, wherein the diameter of the second detection column is equal to d2. min The diameter of the first detection column is equal to d2. max The second detection unit includes a first detection block disposed on the periphery of the gauge body. The first detection block has a detection through-slot, which includes a rectangular through-slot and a rectangular stop-slot connected in sequence. The width of the rectangular through-slot is equal to n. max The width of the rectangular stop groove is equal to n. min The third detection unit includes a first rectangular column and a second rectangular column connected in sequence, wherein the thickness of the second rectangular column is equal to B. min The thickness of the first rectangular column is equal to B. max The fourth detection unit includes a first mounting plate disposed around the periphery of the gauge body, a second detection block and a first mounting post spaced apart on the first mounting plate, the second detection block having a stepped first sidewall and a second sidewall on the side near the first mounting post, and the distance from the first sidewall to the wall of the first mounting post being equal to m. min The distance from the second sidewall to the first mounting column wall is equal to m. max The fifth detection unit includes a second mounting plate disposed around the periphery of the gauge body and a third detection column disposed on the second mounting plate. The shortest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. min Subtracting the radius of the third detection column, the longest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. max Subtract the radius of the third detection column; the sixth detection unit includes a third mounting plate disposed on the periphery of the gauge body, and a second mounting column and a third detection block spaced apart on the third mounting plate, wherein the distance between the wall surface of the second mounting column and the third detection block is equal to H. max A detection arm is formed on one side of the detection channel. The detection arm has a rectangular cross-section, and the distance between the end of the detection arm furthest from the gauge body and the bottom wall of the detection channel is equal to l. min ; The method for detecting slotted insulators includes: Remove the connecting pin of the slotted insulator and insert it into the test through hole to test the first dimension; The first detection part is inserted into the U-shaped slot and the flat foot hole respectively to detect the second dimension; The flat foot of the slotted insulator is inserted into the detection slot to detect the third dimension; The third detection unit is inserted into the opening of the U-shaped groove to detect the fourth dimension; Insert the first mounting post into the flat foot hole, pull the fourth detection part away from the slot insulator so that the first mounting post is tangent to the flat foot hole, and move the first mounting post up and down to detect the fifth dimension; Insert the third detection post into the U-shaped slot hole from inside the U-shaped slot opening, pull the fifth detection part away from the slot insulator so that the third detection post is tangent to the U-shaped slot hole, and rotate the fifth detection part to detect the sixth dimension; Insert the second mounting post into the U-shaped slot, pull the sixth detection part away from the slot insulator so that the second mounting post is tangent to the U-shaped slot, and move the second mounting post up and down to detect the seventh dimension; Align the interface between the upper plane of the detection arm and the flat-footed cylindrical rod, and check the position of the top surface of the flat foot to detect the eighth dimension.

2. A gauge for testing slotted insulators, using the slotted insulator testing method as described in claim 1, characterized in that, The gauge for testing slotted insulators includes a gauge body and several testing parts. Each testing part is located on the periphery of the gauge body, and each testing part is used to test at least one dimension of the slotted insulator.

3. The gauge for testing slotted insulators according to claim 2, characterized in that, The gauge body is provided with a through-hole for inspection. The through-hole includes a through-hole section and a stop-hole section connected in sequence. The diameter of the through-hole section is equal to d1. max The diameter of the stop hole section is equal to d1. min The detection through hole is used to insert a connecting pin to detect the first dimension.

4. The gauge for testing slotted insulators according to claim 2, characterized in that, The gauge body has a first detection section extending circumferentially. The first detection section includes a first detection post and a second detection post connected in sequence. The diameter of the second detection post is equal to d2. min The diameter of the first detection column is equal to d2. max The second detection column is used to be inserted into the U-shaped slot and the flat foot hole respectively to detect the second dimension.

5. The gauge for testing slotted insulators according to claim 2, characterized in that, A second detection section extends circumferentially from the main body of the gauge. The second detection section includes a first detection block located circumferentially from the main body of the gauge. The first detection block has a detection through-slot, which includes a rectangular through-slot and a rectangular stop-slot connected sequentially. The width of the rectangular through-slot is equal to n. max The width of the rectangular stop groove is equal to n. min The rectangular through slot is used to insert a flat foot to detect the third dimension.

6. The gauge for testing slotted insulators according to claim 2, characterized in that, A third detection section extends circumferentially from the main body of the gauge. The third detection section includes a first rectangular post and a second rectangular post connected in sequence. The thickness of the second rectangular post is equal to B. min The thickness of the first rectangular column is equal to B. max The second rectangular post is used to be inserted into the U-shaped groove to detect the fourth dimension.

7. The gauge for testing slotted insulators according to claim 2, characterized in that, A fourth detection section extends circumferentially from the main body of the gauge. The fourth detection section includes a first mounting plate disposed on the circumference of the gauge body, and a second detection block and a first mounting post spaced apart from each other on the first mounting plate. The second detection block has a stepped first sidewall and a second sidewall on the side closest to the first mounting post. The distance from the first sidewall to the wall of the first mounting post is equal to m. min The distance from the second sidewall to the first mounting column wall is equal to m. max The second sidewall is used to abut against the end face of the flat foot to detect the fifth dimension.

8. The gauge for testing slotted insulators according to claim 2, characterized in that, A fifth detection section extends circumferentially from the gauge body. The fifth detection section includes a second mounting plate located circumferentially from the gauge body and a third detection post mounted on the second mounting plate. The third detection post is inserted into a U-shaped slot, and the second mounting plate is rotated along the U-shaped slot. The shortest distance between the end of the second mounting plate and the bottom wall of the U-shaped slot is equal to F. min Subtracting the radius of the third detection column, the longest distance between the end of the second mounting plate and the bottom wall of the U-shaped groove is equal to F. max Subtracting the radius of the third detection column, the distance between the second mounting plate and the bottom wall of the U-shaped groove when rotating is used to detect the sixth dimension.

9. The gauge for testing slotted insulators according to claim 2, characterized in that, A sixth detection section extends from the periphery of the gauge body. The sixth detection section includes a third mounting plate disposed on the periphery of the gauge body, and a second mounting post and a third detection block spaced apart from each other on the third mounting plate. The second mounting post is used to insert into a U-shaped slot, and the distance between the wall surface of the second mounting post and the third detection block is equal to H. max The sixth detection unit is used to detect the seventh dimension.

10. The gauge for testing slotted insulators according to claim 5, characterized in that, A detection arm is formed on one side of the detection channel. The detection arm has a rectangular cross-section, and the distance between the end of the detection arm away from the gauge body and the bottom wall of the detection channel is equal to l. min The end face of the detection arm is used to abut against the cylindrical end face of the flat foot to detect the eighth dimension.

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