Generator stator bar electromagnetic wire inter-strand insulation test device and method
By designing a generator stator wire rod electromagnetic wire interstrand insulation testing equipment including a stand, a roller device, a clamping plier device and an electric plate device, the problem of low manual testing efficiency is solved and efficient and reliable insulation testing is achieved.
Patent Information
- Application Number
- CN202510315187.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2045-03-18
AI Technical Summary
In the prior art, the insulation efficiency between the electromagnetic wires of the stator wire rod of a large generator is low and the efficiency is not high.
A generator stator wire rod electromagnetic wire interstrand insulation testing equipment is designed, including a stand, a roller device, a clamping plier device and an electric plate device. Through the coordinated cooperation of the electric plate device, the upper and lower pressure plates, all the electromagnetic wires on the wire rod are fixed on the electric plate device, and the resistance measuring instrument is used to test the resistance value of each two electromagnetic wires in turn.
The efficiency of wire rod electromagnetic wire inter-strand insulation testing is improved, ensuring the reliability and accuracy of the test, and at the same time adapting to wire rod testing needs of different sizes and lengths.
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Figure CN119846277A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of insulation testing of wire rods, and in particular to an insulation testing device and method for electromagnetic wire strands of a generator stator wire rod. Background Art
[0002] At present, the insulation test between electromagnetic wire strands of large generator stator bars in the domestic market is mainly done manually.
[0003] In the related art, all electromagnetic wires at one end of the wire rod are separated and isolated so that each electromagnetic wire is not conductive. All electromagnetic wires at the other end of the wire rod are also separated and isolated so that each electromagnetic wire is not conductive. A multimeter is used to test the continuity of each two electromagnetic wires, or whether the resistance value of each two electromagnetic wires is within the required range. If there is a short circuit or the resistance value is less than the requirement, it means that the electromagnetic wire has a short circuit or a low insulation value, and it is judged as unqualified.
[0004] The above-mentioned related technologies have the following defects: manual testing and low efficiency. Summary of the invention
[0005] In order to improve the insulation test efficiency of the wire bar, the present application provides a generator stator wire bar electromagnetic wire strand insulation test device and method.
[0006] The present application provides a generator stator bar electromagnetic wire strand insulation test device and method using the following technical solutions: A generator stator bar electromagnetic wire strand insulation test device comprises a stand, a roller device, a clamp device and an electric plate device, wherein the roller device and the clamp device are sequentially mounted on the stand from the feed end to the discharge end of the stand; The roller device comprises a rubber roller rotatably connected to the platform; The clamping clamp device comprises an upper pressing plate and a lower pressing plate which are arranged opposite to each other, the upper pressing plate and the lower pressing plate are both mounted on the platform, and the upper pressing plate can move toward the lower pressing plate; The electric plate device is arranged between the upper pressing plate and the lower pressing plate, and is detachably connected to the stand; A plurality of slots are arranged on one side of the electric plate device facing the upper pressing plate and one side of the electric plate device facing the lower pressing plate, and a conductive spring is arranged in each of the slots.
[0007] By adopting the above technical solution, the multiple electromagnetic wires at the first end of the wire rod are respectively inserted into a slot, and the heads of the multiple electromagnetic wires at this end cannot touch each other. The multiple electromagnetic wires at the second end of the wire rod are isolated by a sparse plate, and the heads of the multiple electromagnetic wires at this end cannot touch each other. The upper pressing plate and the lower pressing plate are close to the electric plate device, and the upper pressing plate and the lower pressing plate press the electromagnetic wires on the conductive reed. Every two conductive reeds are connected to the resistance measuring instrument through an electric control switch. The resistance value of every two electromagnetic wires is tested in turn. Therefore, the present application improves the insulation test efficiency of the wire rod.
[0008] Optionally, the rubber roller, the upper pressing plate and the lower pressing plate are all arranged along the width direction of the platform.
[0009] By adopting the above technical solution, it is ensured that the wire rod runs smoothly during the transmission process and the test error caused by deviation is avoided.
[0010] Optionally, the clamping device also includes two side plates installed on the platform, and the two side plates are distributed along the width direction of the platform; the upper pressure plate and the lower pressure plate are both arranged between the two side plates, and are both movably connected to the side plates.
[0011] By adopting the above technical solution, the side plates are used to fix the two ends of the upper and lower pressing plates on the stand. The stability and precise positioning of the upper and lower pressing plates in the horizontal direction are ensured, and the reliability and accuracy of the test process are improved. At the same time, the design of the upper and lower pressing plates being movably connected to the side plates allows the upper and lower pressing plates to be adjusted according to wire rods of different sizes, adapting to the test requirements of various specifications, and enhancing the versatility and flexibility of the equipment.
[0012] Optionally, the side panel is slidably connected to the platform in the length direction of the platform.
[0013] By adopting the above technical solution, the clamping clamp device can adjust its position along the length direction on the stand to meet the testing requirements of wire rods of different lengths.
[0014] Optionally, in the vertical direction, the side plate is provided with an upper slide seat and a lower slide seat which are spaced apart from each other, the upper pressing plate is slidably connected to the upper slide seat, and the lower pressing plate is slidably connected to the lower slide seat.
[0015] By adopting the above technical solution, the arrangement of the upper slide seat and the lower slide seat enables the upper pressing plate and the lower pressing plate to move smoothly in the vertical direction, and limits the sliding range of the upper pressing plate and the lower pressing plate.
[0016] Optionally, an end of the side plate away from the rubber roller is provided with a receiving groove located between the upper pressing plate and the lower pressing plate, and the electric plate device is arranged in the receiving groove.
[0017] By adopting the above technical solution, the receiving groove can effectively fix the position of the electric board device, ensuring that the electric board device will not deviate or fall off during the test, thereby improving the stability and reliability of the test. At the same time, the design also facilitates the installation and removal of the electric board device, and facilitates maintenance and replacement.
[0018] Optionally, the clamping clamp device also includes a caliper, which includes a caliper seat, a caliper body and a limiting link, wherein the caliper seat is connected to the upper pressure plate; the caliper body is arranged on the side of the lower pressure plate away from the upper pressure plate and is in contact with the lower pressure plate; the limiting link is arranged on the side of the side plate away from the rubber roller, and in the vertical direction, one end is slidably connected to the caliper seat, and the other end is fixedly connected to the caliper body.
[0019] By adopting the above technical solution, the limiting link blocks the notch side of the receiving groove, so that the electric plate device can be stably arranged in the receiving groove. When the electromagnetic wire needs to be pressed on the electric plate device, the limiting link can be slid to make the upper pressing plate and the lower pressing plate approach each other.
[0020] Optionally, the upper pressing plate and the lower pressing plate are both made of insulating materials.
[0021] By adopting the above technical solution, the current can be effectively prevented from being conducted through the pressure plate, ensuring that short circuits or misjudgments will not be caused by contact between metal parts during the test.
[0022] Optionally, rubber strips are provided on the opposite sides of the upper pressing plate and the lower pressing plate.
[0023] By adopting the above technical solution, the electromagnetic wire can be effectively protected from damage during the test process, and the accuracy of the test results can be improved. At the same time, the rubber strip can also increase the friction force to ensure that the electromagnetic wire is fixed reliably and prevent displacement or falling off during the test.
[0024] A method for testing the insulation between strands of electromagnetic wires of a generator stator bar is based on the above-mentioned device for testing the insulation between strands of electromagnetic wires of a generator stator bar, and comprises the following steps: Isolating the multiple electromagnetic wires at the first end of the wire rod by an electric plate device so that only one electromagnetic wire is arranged in one slot and the heads of the multiple electromagnetic wires at this end are prevented from contacting each other; The plurality of electromagnetic wires at the second end of the wire rod are isolated by a sparse plate, and the heads of the plurality of electromagnetic wires at the end are prevented from contacting each other; The upper pressing plate and the lower pressing plate are close to the electric plate device, and the upper pressing plate and the lower pressing plate press the electromagnetic wire onto the conductive spring sheet; Every two of the conductive reeds are connected to a resistance measuring instrument via an electric control switch; The resistance value of each two magnet wires is tested in turn.
[0025] By adopting the above technical solution, all electromagnetic wires on the wire rod can be fixed on the electric plate device at one time through the cooperation of the electric plate device and the upper pressure plate and the lower pressure plate. Then, in conjunction with the resistance measuring instrument, the resistance value of every two electromagnetic wires on the wire rod can be tested in turn, thereby improving the efficiency of the insulation test between the electromagnetic wire strands of the wire rod.
[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, through the coordinated cooperation of the electric plate device and the upper pressure plate and the lower pressure plate, all the electromagnetic wires on the wire rod can be fixed on the electric plate device at one time, and then in conjunction with the resistance measuring instrument, the resistance value of every two electromagnetic wires on the wire rod can be tested in turn, thereby improving the efficiency of the insulation test between the electromagnetic wire strands of the wire rod.
[0027] 2. In the present application, the side plate is slidably connected to the stand, so that the clamping clamp device can be adjusted in the length direction on the stand to meet the testing requirements of wire rods of different lengths.
[0028] 3. The rubber strip in this application can effectively protect the electromagnetic wire from damage during the test and improve the accuracy of the test results. At the same time, the rubber strip can also increase the friction force to ensure that the electromagnetic wire is fixed reliably and prevent displacement or falling off during the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0030] Figure 1 It is a schematic diagram of the overall structure on the left side of an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure on the right side of an embodiment of the present application; Figure 3 It is a schematic diagram of the overall structure of the roller device; Figure 4 It is a schematic diagram of the overall structure of the clamping clamp device; Figure 5 It is a schematic diagram of the overall structure of the electric panel device; Figure 6 It is a right view schematic diagram of the overall structure of the electric panel device.
[0031] Reference numerals: 1. Platform; 11. Slide rail; 12. Slider; 2. Roller device; 21. Rubber roller; 22. Bearing; 23. Roller seat; 3. Clamping clamp device; 31. Side plate; 301. Accommodating groove; 32. Upper pressing plate; 321. Upper sliding seat; 33. Lower pressure plate; 331. Lower slide seat; 34. Rubber strip; 35. caliper; 351. caliper seat; 352. caliper body; 353. limit connecting rod; 4. Electric panel device; 41. piezoelectric plate; 4101. card slot; 42. conductive spring; 43. electric plate seat; 5. Wire rod; 51. Electromagnetic wire; 6. Comb plate; 61. Upper comb teeth; 62. Lower comb teeth. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.
[0033] The embodiments of the present application disclose a device and method for testing the insulation between strands of electromagnetic wires of a stator bar of a generator.
[0034] Reference Figure 1 and Figure 2 A generator stator bar electromagnetic wire strand insulation testing device includes a stand 1, a roller device 2, a clamp device 3 and an electric plate device 4. From the feed end to the discharge end of the stand 1, the roller device 2 and the clamp device 3 are installed on the stand 1 in sequence.
[0035] Reference Figure 3 The roller device 2 includes a rubber roller 21 rotatably connected to the platform 1. Bearings 22 are installed at both ends of the rubber roller 21, and a roller seat 23 is connected between the bearing 22 and the platform 1.
[0036] Reference Figure 4 The clamping clamp device 3 includes an upper pressing plate 32 and a lower pressing plate 33 which are arranged opposite to each other. The upper pressing plate 32 and the lower pressing plate 33 are both installed on the platform 1, and the upper pressing plate 32 can move toward the lower pressing plate 33.
[0037] Reference Figure 2 , Figure 5 and Figure 6 The electric plate device 4 is arranged between the upper pressing plate 32 and the lower pressing plate 33, and is detachably connected to the stand 1. The electric plate device 4 is provided with a pressure-bearing electric plate 41 on one side facing the upper pressing plate 32 and on one side facing the lower pressing plate 33, and a plurality of slots 4101 are provided on one side of the pressure-bearing electric plate 41 away from the electric plate device 4, and a conductive spring 42 is provided in each slot 4101.
[0038] Reference Figure 1 and Figure 2In the implementation mode of the present application, the multiple electromagnetic wires 51 at the first end of the wire rod 5 are respectively inserted into a slot 4101, and the heads of the multiple electromagnetic wires 51 at this end cannot touch each other. The multiple electromagnetic wires 51 at the second end of the wire rod 5 are isolated by a sparse plate, and the heads of the multiple electromagnetic wires 51 at this end cannot touch each other. The upper pressing plate 32 and the lower pressing plate 33 are close to the electric plate device 4, and the upper pressing plate 32 and the lower pressing plate 33 press the electromagnetic wires 51 on the conductive spring 42. Every two conductive springs 42 are connected to the resistance measuring instrument through an electric control switch. The resistance value of every two electromagnetic wires 51 is tested in turn. Therefore, the present application improves the insulation test efficiency of the wire rod 5.
[0039] Reference Figure 1 , Figure 2 and Figure 3 The rubber roller 21, the upper pressing plate 32 and the lower pressing plate 33 are all arranged along the width direction of the stand 1. In the embodiment of the present application, the wire rod 5 is ensured to run smoothly during the transmission process to avoid the test error caused by the deviation.
[0040] Reference Figure 4 The clamping clamp device 3 also includes two side plates 31 installed on the platform 1, and the two side plates 31 are distributed along the width direction of the platform 1. The upper pressing plate 32 and the lower pressing plate 33 are both arranged between the two side plates 31, and are both movably connected to the side plates 31. In the embodiment of the present application, the side plates 31 are used to fix the two ends of the upper pressing plate 32 and the lower pressing plate 33 on the platform 1. The stability and precise positioning of the upper pressing plate 32 and the lower pressing plate 33 in the horizontal direction are ensured, and the reliability and accuracy during the test are improved. At the same time, the design of the movably connected upper and lower pressing plates 32 and the lower pressing plate 33 with the side plates 31 allows the upper and lower pressing plates 33 to be adjusted according to the wire rods 5 of different sizes to meet the test requirements of various specifications, thereby enhancing the versatility and flexibility of the equipment.
[0041] Reference Figure 2 and Figure 4 , in the length direction of the stand 1, the side plate 31 is slidably connected to the stand 1. In the embodiment of the present application, two slide rails 11 are installed in the length direction of the stand 1, and the two slide rails 11 are parallel and symmetrical in the width direction of the stand 1. Each slide rail 11 is provided with a sliding block 12, and the two side plates 31 are respectively connected to a slider 12. Through the cooperation of the slide rail 11 and the slider 12, the clamping clamp device 3 can adjust its position along the length direction on the stand 1, so as to meet the testing requirements of wire rods 5 of different lengths.
[0042] Reference Figure 4In the vertical direction, the side plate 31 is provided with an upper slide seat 321 and a lower slide seat 331 which are spaced apart from each other, the upper pressing plate 32 is slidably connected to the upper slide seat 321, and the lower pressing plate 33 is slidably connected to the lower slide seat 331. In the embodiment of the present application, the upper slide seat 321 and the lower slide seat 331 are respectively provided with an upper oblong hole and a lower oblong hole which are vertically arranged, and the upper oblong hole and the lower oblong hole are respectively provided with an upper pin and a lower pin, and the upper pin and the lower pin are respectively connected to the upper pressing plate 32 and the lower pressing plate 33. The upper pin and the lower pin can slide vertically in the upper oblong hole and the lower oblong hole respectively, and the sliding ranges of the upper pin and the lower pin are respectively limited by the upper oblong hole and the lower oblong hole.
[0043] Reference Figure 2 and Figure 4 , an end of the side plate 31 away from the rubber roller 21 is provided with a receiving groove 301 located between the upper pressing plate 32 and the lower pressing plate 33, and the electric plate device 4 is arranged in the receiving groove 301. In the embodiment of the present application, both ends of the pressure-bearing electric plate 41 are provided with an electric plate seat 43, and the two electric plate seats 43 and the two receiving grooves 301 are arranged correspondingly, and the electric plate seats 43 are arranged in the corresponding receiving grooves 301. The receiving groove 301 can effectively fix the position of the electric plate device 4, ensuring that the electric plate device 4 will not deviate or fall off during the test, thereby improving the stability and reliability of the test. At the same time, the design also facilitates the installation and disassembly of the electric plate device 4, and is convenient for maintenance and replacement.
[0044] Reference Figure 2 and Figure 4 The clamping clamp device 3 also includes a clamp 35, which includes a clamp seat 351, a clamp body 352 and a limit connecting rod 353. The clamp seat 351 is detachably connected to the upper pressing plate 32. The clamp body 352 is arranged on the side of the lower pressing plate 33 away from the upper pressing plate 32 and contacts the lower pressing plate 33. The limit connecting rod 353 is arranged on the side of the side plate 31 away from the rubber roller 21, and in the vertical direction, one end is slidably connected to the clamp seat 351, and the other end is fixedly connected to the clamp body 352. In the embodiment of the present application, a telescopic part such as a cylinder is connected between the limit link 353 and the clamp seat 351, and the limit link 353 is driven to rise and fall by the cylinder, or a vertical hole is provided on the clamp seat 351, and the limit link 353 slides in the vertical hole. A screw-connected bolt is provided on the clamp seat 351, and the bolt is used to resist the limit link 353. When the height of the limit link 353 is manually adjusted, the bolt resists the limit link 353, and the relative position of the limit link 353 and the clamp seat 351 is limited, thereby realizing the height adjustment of the limit link 353 and the limit after adjustment. The limit link 353 blocks the notch side of the receiving groove 301, so that the electric plate device 4 can be stably set in the receiving groove 301. When it is necessary to press the electromagnetic wire 51 on the electric plate device 4, the limit link 353 can be slid to make the upper pressing plate 32 and the lower pressing plate 33 close to each other.
[0045] Reference Figure 2 and Figure 4 The upper pressing plate 32 and the lower pressing plate 33 are both made of insulating materials. In the embodiment of the present application, the current is effectively prevented from being conducted through the pressing plate, ensuring that there will be no short circuit or misjudgment caused by the contact of metal parts during the test.
[0046] Reference Figure 2 and Figure 4 The upper pressing plate 32 and the side opposite to the lower pressing plate are both provided with a rubber strip 34. In the embodiment of the present application, the electromagnetic wire 51 can be effectively protected from damage during the test process, thereby improving the accuracy of the test results. At the same time, the rubber strip 34 can also increase the friction force, ensuring that the electromagnetic wire 51 is fixed reliably and preventing displacement or falling off during the test.
[0047] Reference Figure 1 and Figure 2 , a generator stator bar 5 electromagnetic wire 51 strand insulation test and method, based on the above-mentioned generator stator bar electromagnetic wire strand insulation test equipment, including the following steps: The multiple electromagnetic wires 51 at the first end of the wire rod 5 are isolated by the electric plate device 4, so that only one electromagnetic wire 51 is arranged in one slot 4101, and the heads of the multiple electromagnetic wires 51 at this end cannot contact each other; The multiple electromagnetic wires 51 at the second end of the wire rod 5 are isolated by a sparse plate, and the heads of the multiple electromagnetic wires 51 at this end are prevented from contacting each other. A plurality of upper comb teeth 61 are provided at one end of the comb plate 6 in the width direction, and a plurality of lower comb teeth 62 are provided at the other end. The multiple electromagnetic wires 51 are clamped between the plurality of upper comb teeth 61 and / or the plurality of lower comb teeth 62. One electromagnetic wire 51 is sandwiched between two adjacent lower comb teeth 62 or between two adjacent lower comb teeth 62; The upper pressing plate 32 and the lower pressing plate 33 are close to the electric plate device 4, and the upper pressing plate 32 and the lower pressing plate 33 press the electromagnetic wire 51 onto the conductive spring sheet 42; Every two conductive reeds 42 are connected to the resistance measuring instrument through an electric control switch. In the present application, a pressure switch is connected between each conductive reed 42 and the electric plate device 4, and every two conductive reeds 42 form a detection unit. The two pressure switches of each detection unit are connected to an electric control switch, and the electric control switch is connected to the resistance measuring instrument. The resistance measuring instrument, pressure switch, and electric control switch are all prior art. When the upper pressure plate 32 and the lower pressure plate 33 press the electromagnetic wire 51 onto the conductive spring 42, the conductive spring 42 transfers the pressure to the corresponding pressure switch to turn on the pressure switch. At this time, the detection unit corresponding to the pressure switch is connected to the corresponding electric control switch, and then the on and off of all the pressure switches can be controlled in turn to realize the detection of the resistance value of every two electromagnetic wires 51 by the resistance measuring instrument, and then the resistance value of every two electromagnetic wires 51 can be tested in turn to realize the rapid test of the insulation between the electromagnetic wires 51 of the generator stator wire rod 5.
[0048] Reference Figure 1 and Figure 2 In the embodiment of the present application, through the cooperation of the electric plate device 4 and the upper pressing plate 32 and the lower pressing plate 33, all the electromagnetic wires 51 on the wire rod 5 can be fixed on the electric plate device 4 at one time. Then, in conjunction with the resistance measuring instrument, the resistance value of every two electromagnetic wires 51 on the wire rod 5 can be tested in turn, thereby improving the efficiency of the insulation test between the electromagnetic wires 51 of the wire rod 5.
[0049] The implementation principle of the generator stator bar electromagnetic wire strand insulation test device and method in the embodiment of the present application is: The multiple electromagnetic wires 51 at the first end of the wire rod 5 are respectively inserted into a slot 4101, and the heads of the multiple electromagnetic wires 51 at this end cannot touch each other. The multiple electromagnetic wires 51 at the second end of the wire rod 5 are isolated by a sparse plate, and the heads of the multiple electromagnetic wires 51 at this end cannot touch each other.
[0050] The upper pressing plate 32 and the lower pressing plate 33 are close to the electric plate device 4, and the electric plate device 4 is clamped, so that the upper pressing plate 32 and the lower pressing plate 33 press the electromagnetic wire 51 on the conductive spring sheet 42. When the upper pressing plate 32 and the lower pressing plate 33 press the electromagnetic wire 51 on the conductive spring sheet 42, the conductive spring sheet 42 transmits the pressure to the corresponding pressure switch, so that the pressure switch is turned on. At this time, the detection unit corresponding to the pressure switch is connected to the corresponding electric control switch, and then the on and off of all the pressure switches can be controlled in sequence, so that the resistance measuring instrument can detect the resistance value of every two electromagnetic wires 51, and then the resistance value of every two electromagnetic wires 51 can be tested in sequence. If the short circuit or the resistance value is less than the requirement, it means that the electromagnetic wire has a short circuit or the insulation value is low, and it is judged as unqualified, so as to realize the rapid test of the insulation between the electromagnetic wires 51 of the generator stator bar 5.
[0051] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0052] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A generator stator bar electromagnetic wire strand insulation test equipment, characterized in that: It comprises a platform (1), a roller device (2), a clamping device (3) and an electric plate device (4), wherein the roller device (2) and the clamping device (3) are sequentially mounted on the platform (1) from the feed end to the discharge end of the platform (1); The roller device (2) comprises a rubber roller (21) rotatably connected to the platform (1); The clamping clamp device (3) comprises an upper pressing plate (32) and a lower pressing plate (33) which are arranged opposite to each other, wherein the upper pressing plate (32) and the lower pressing plate (33) are both mounted on the platform (1), and the upper pressing plate (32) is capable of moving toward the lower pressing plate (33); The electric plate device (4) is arranged between the upper pressing plate (32) and the lower pressing plate (33), and is detachably connected to the stand (1); The electric plate device (4) is provided with a plurality of slots (4101) on one side facing the upper pressing plate (32) and on one side facing the lower pressing plate (33), and each of the slots (4101) is provided with a conductive spring (42).
2. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 1, characterized in that: The rubber roller (21), the upper pressing plate (32) and the lower pressing plate (33) are all arranged along the width direction of the platform (1).
3. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 2, characterized in that: The clamping clamp device (3) further comprises two side plates (31) mounted on the platform (1), wherein the two side plates (31) are distributed along the width direction of the platform (1); the upper pressing plate (32) and the lower pressing plate (33) are both arranged between the two side plates (31) and are both movably connected to the side plates (31).
4. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 3, characterized in that: In the length direction of the platform (1), the side plate (31) is slidably connected to the platform (1).
5. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 3, characterized in that: In the vertical direction, the side plate (31) is provided with an upper slide seat (321) and a lower slide seat (331) which are spaced apart from each other, the upper pressing plate (32) is slidably connected to the upper slide seat (321), and the lower pressing plate (33) is slidably connected to the lower slide seat (331).
6. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 3, characterized in that: An end of the side plate (31) away from the rubber roller (21) is provided with a receiving groove (301) located between the upper pressing plate (32) and the lower pressing plate (33), and the electric plate device (4) is arranged in the receiving groove (301).
7. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 6, characterized in that: The clamping clamp device (3) also includes a caliper (35), the caliper (35) including a caliper seat (351), a caliper body (352) and a limit connecting rod (353), the caliper seat (351) is connected to the upper pressure plate (32); the caliper body (352) is arranged on a side of the lower pressure plate (33) away from the upper pressure plate (32) and is in contact with the lower pressure plate (33); the limit connecting rod (353) is arranged on a side of the side plate (31) away from the rubber roller (21), and in the vertical direction, one end is slidably connected to the caliper seat (351) and the other end is fixedly connected to the caliper body (352).
8. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 1, characterized in that: The upper pressing plate (32) and the lower pressing plate (33) are both made of insulating materials.
9. The generator stator bar electromagnetic wire strand insulation test equipment according to claim 1, characterized in that: The upper pressing plate (32) and the lower pressing plate opposite to each other are both provided with rubber strips (34).
10. A method for testing the insulation between strands of electromagnetic wires of a generator stator bar, based on the device for testing the insulation between strands of electromagnetic wires of a generator stator bar according to any one of claims 1 to 9, characterized in that: The steps include: The plurality of electromagnetic wires (51) at the first end of the wire rod (5) are isolated by an electric plate device (4) so that only one electromagnetic wire (51) is arranged in one slot (4101) and the heads of the plurality of electromagnetic wires (51) at the end are prevented from contacting each other; The plurality of electromagnetic wires (51) at the second end of the wire rod (5) are isolated by a sparse plate, and the heads of the plurality of electromagnetic wires (51) at the end are prevented from contacting each other; The upper pressing plate (32) and the lower pressing plate (33) are close to the electric plate device (4), and the upper pressing plate (32) and the lower pressing plate (33) press the electromagnetic wire (51) onto the conductive spring sheet (42); Every two of the conductive reeds (42) are connected to a resistance measuring instrument via an electrically controlled switch; The resistance value of each two electromagnetic wires (51) is tested in sequence.
Citation Information
Patent Citations
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