CN116736056A - External voltage withstand test device for power transformer - Google Patents
External voltage withstand test device for power transformer Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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Abstract
Description
技术领域Technical field
本发明涉及一种电力变压器外施耐压试验装置。The invention relates to an externally applied withstand voltage test device for a power transformer.
背景技术Background technique
变压器是利用电磁感应的原理来改变交流电压的装置，主要构件是初级线圈、次级线圈和铁芯（磁芯）。主要功能有：电压变换、电流变换、阻抗变换、隔离、稳压（磁饱和变压器）等。对变压器施加工频耐压是对变压器的主绝缘性能考核，检查主绝缘是否有局部缺陷，验证变压器在设计，按照和制造过程的质量缺陷，对变压器外施加工频耐压试验用于全绝缘或分级绝缘变压器的中性点耐压及低压绕组的耐压试验。A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. Applying power frequency withstand voltage to the transformer is to evaluate the main insulation performance of the transformer. Check whether there are local defects in the main insulation, verify the quality defects in the design, compliance and manufacturing process of the transformer. Apply power frequency withstand voltage test to the outside of the transformer for full insulation Or the neutral point withstand voltage of graded insulation transformers and the withstand voltage test of low-voltage windings.
根据中国专利公开号CN104569748A公开的高压插拔式35kV电力变压器的耐压试验方法，其提供一种结构紧凑，进一步提升产品质量，提高安全性的高压插拔式35kV电力变压器的耐压试验方法。According to the withstand voltage test method of high-voltage plug-in 35kV power transformer disclosed in Chinese Patent Publication No. CN104569748A, it provides a withstand voltage test method for high-voltage plug-in 35kV power transformer with compact structure, further improving product quality and improving safety.
根据上述专利，在对变压器进行外施耐压实验的时候，需要对变压器进行逐步升压，并且每次升压之后需要对实验数据进行检测，现有的外施耐压实验装置在进行试验的时候需要人为往复进行升压控制，步骤极为繁琐。According to the above-mentioned patent, when performing an externally applied withstand voltage test on a transformer, the transformer needs to be gradually boosted, and the experimental data needs to be detected after each boost. Sometimes it is necessary to manually perform boost control back and forth, and the steps are extremely cumbersome.
针对相关技术中的问题，目前尚未提出有效的解决方案。No effective solutions have yet been proposed for the problems in related technologies.
发明内容Contents of the invention
本发明的目的在于提供一种电力变压器外施耐压试验装置，以解决上述背景技术中提出的问题。The object of the present invention is to provide an externally applied withstand voltage test device for a power transformer to solve the problems raised in the above background technology.
为实现上述目的，本发明提供如下技术方案：In order to achieve the above objects, the present invention provides the following technical solutions:
一种电力变压器外施耐压试验装置，所述底座的上端连接有调节装置，所述调节装置包括壳体、电阻管、传动机构和动力机构，所述底座的上端一侧固定连接有壳体，所述壳体内开设有滑槽一，所述滑槽一内固定连接有电阻管，所述电阻管的外侧设置有数量为四个的滑轨，所述滑槽一内滑动套设有滑块一且滑动套设在所述滑轨上，所述滑块一内通过拨片与所述电阻管接触，所述滑块一与所述拨片之间通过弹力机构连接，所述滑块一的一侧连接有所述传动机构，所述传动机构的上端设置有动力机构，所述壳体的一侧连接有检测装置。An externally applied withstand voltage test device for a power transformer. The upper end of the base is connected to an adjustment device. The adjustment device includes a shell, a resistance tube, a transmission mechanism and a power mechanism. The upper end of the base is fixedly connected to a shell on one side. , a chute is provided in the housing, a resistance tube is fixedly connected inside the chute, four slide rails are provided on the outside of the resistance tube, and a sliding sleeve is provided in the chute one. Block one is slidably sleeved on the slide rail. The inside of the slide block is in contact with the resistance tube through a pick. The slide block is connected to the pick through an elastic mechanism. The slide block is One side is connected to the transmission mechanism, the upper end of the transmission mechanism is provided with a power mechanism, and one side of the housing is connected to a detection device.
进一步的，所述传动机构包括传动轴和滚珠，所述滑块一的一侧固定连接有滑块二，所述滑块二的一侧开设有通孔且活动套设有传动轴，所述传动轴的外壁开设有异形螺旋槽，所述通孔内活动嵌设有滚珠，所述滚珠的外壁与所述异形螺旋槽接触。Further, the transmission mechanism includes a transmission shaft and balls. One side of the first slider is fixedly connected to a second slider. A through hole is provided on one side of the second slider and a movable sleeve is provided with a transmission shaft. The outer wall of the transmission shaft is provided with a special-shaped spiral groove, and a ball is movably embedded in the through hole. The outer wall of the ball is in contact with the special-shaped spiral groove.
进一步的，所述动力机构包括电机、锥齿轮一和锥齿轮二，所述壳体的上端固定连接有保护套，所述保护套内设置有电机且与所述壳体固定连接，所述电机的外轴固定连接有锥齿轮一，所述锥齿轮一的一侧啮合有锥齿轮二，所述锥齿轮二的下端与所述传动轴固定连接。Further, the power mechanism includes a motor, a bevel gear one and a bevel gear two. The upper end of the housing is fixedly connected with a protective sleeve. A motor is provided in the protective sleeve and is fixedly connected to the housing. The motor The outer shaft of the bevel gear is fixedly connected with a bevel gear one, one side of the bevel gear one is meshed with a bevel gear two, and the lower end of the bevel gear two is fixedly connected with the transmission shaft.
进一步的，所述弹力机构包括连接杆一、连接杆二和弹簧一，所述滑块一靠近所述拨片的一侧开设有凹槽且通过转轴与所述拨片活动连接，所述拨片靠近所述凹槽的一侧铰接有连接杆一，所述凹槽的内壁铰接有连接杆二，所述连接杆一的一侧开设有圆槽，所述圆槽内滑动套设有连接杆三，所述连接杆三远离所述连接杆一的一端与所述连接杆二固定连接，所述连接杆一与所述连接杆二之间固定连接有弹簧一。Further, the elastic mechanism includes connecting rod one, connecting rod two and spring one. The slide block one has a groove on one side close to the paddle and is movably connected to the paddle through a rotating shaft. The paddle One side of the piece close to the groove is hinged with connecting rod one, and the inner wall of the groove is hinged with connecting rod two. One side of the connecting rod is provided with a circular groove, and the sliding sleeve in the circular groove is provided with a connecting rod. Rod three, one end of the connecting rod three away from the connecting rod one is fixedly connected to the connecting rod two, and a spring one is fixedly connected between the connecting rod one and the connecting rod two.
进一步的，所述拨片靠近所述连接杆一的一侧固定连接有卡块，所述滑块一靠近所述卡块的一侧固定连接有限位块，所述限位块的一侧开设有与所述卡块相配合的卡槽，所述卡块内开设有滑槽二，所述滑槽二内滑动设置有与所述卡块相配合的异形卡勾，所述异形卡勾的上端与所述滑槽二的内壁之间通过弹簧二固定连接。Further, the side of the paddle close to the connecting rod is fixedly connected to a clamping block, the side of the slider close to the clamping block is fixedly connected to a limiting block, and one side of the limiting block is provided with a There is a clamping slot that matches the clamping block. There is a second chute in the clamping block. A special-shaped hook that matches the clamping block is slidably provided in the second chute. The special-shaped hook is The upper end and the inner wall of the chute two are fixedly connected through spring two.
进一步的，所述滑槽一的上端固定连接有与所述拨片相配合的顶块一，所述滑槽一的下端固定连接有与所述异形卡勾相配合的顶块二。Further, the upper end of the chute one is fixedly connected with a top block that matches the paddle, and the lower end of the chute one is fixedly connected with a top block two that matches the special-shaped hook.
进一步的，所述检测装置包括支撑架和接地柱，所述底座的上端一侧固定连接有支撑架，所述支撑架的一侧通过连接板连接有接地柱，所述支撑架的上端内侧固定连接有与变压器连接的输出端口。Further, the detection device includes a support frame and a grounding post. The support frame is fixedly connected to one side of the upper end of the base. The grounding post is connected to one side of the support frame through a connecting plate. The upper end of the support frame is fixed on the inner side. The output port connected to the transformer is connected.
与现有技术相比，本发明具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
（1）、通过设置的动力机构驱动传动机构，使滑块一滑动，从而带动拨片在电阻管的外壁滑动，从而改变电阻管的阻值，使电阻产生变化，从而控制试验装置对变压器进行增压，而设置的滑轨可以提升滑块一在滑动时候的稳定性，使试验装置的测试更加精准，通过设置的弹力机构，可以推动拨片使拨片紧贴电阻管，避免拨片松动与电阻管分离导致测试数据不准确，通过设置的检测装置可以对变压器进行施压，对变压器进行施压实验。(1) The set power mechanism drives the transmission mechanism, causing the slider to slide, thereby driving the pick to slide on the outer wall of the resistance tube, thereby changing the resistance value of the resistance tube, causing the resistance to change, thereby controlling the test device to perform the transformer Pressurization, and the set slide rail can improve the stability of the slider when sliding, making the test of the test device more accurate. Through the set elastic mechanism, the pick can be pushed to make the pick close to the resistor tube to prevent the pick from loosening. The separation from the resistor tube leads to inaccurate test data. The set-up detection device can be used to apply pressure on the transformer and perform pressure experiments on the transformer.
（2）、当传动轴转动的时候，使滚珠在异形螺旋槽内滚动带动滑块二移动从而使滑块一滑动，而通过设置在传动轴上的异形螺旋槽，可以使滚珠在传动轴转动的时候间歇性抬升，使电阻匀速变化后暂停一定的时间，留给实验人员进行记录，便于对数据的精准测试，通过设置的电机的转动使锥齿轮一和锥齿轮二转动，从而控制传动轴转动，使滑块一在滑槽一内滑动，进而改变电阻管的阻值。(2) When the transmission shaft rotates, the balls roll in the special-shaped spiral groove to drive the slider block 2 to move so that the slider block 1 slides. The special-shaped spiral groove provided on the transmission shaft allows the balls to rotate on the transmission shaft. It rises intermittently, causing the resistance to change at a uniform speed and then pauses for a certain period of time, leaving it for the experimenter to record, so as to facilitate accurate testing of the data. The rotation of the set motor causes the bevel gear one and the bevel gear two to rotate, thereby controlling the transmission shaft. Rotate so that slider one slides in chute one, thereby changing the resistance value of the resistor tube.
（3）、通过设置在凹槽内铰接的连接杆二的一侧固定连接的连接杆三，使连接杆一与连接杆二之间可以活动连接，而设置的弹簧一则会推动连接杆一和连接杆二分离，从而控制拨片远离凹槽，使拨片紧贴电阻管且不会产生松动，通过设置的卡块和限位块配合，当拨片受到顶块一的推动而与电阻管分离的时候，使卡块滑入卡槽内，然后挤压异形卡勾并且与异形卡勾卡接，避免拨片回弹与电阻管接触，从而使变压器外施耐压实验装置断电，避免人员触电。(3) The connecting rod 3 is fixedly connected to one side of the connecting rod 2 hinged in the groove, so that the connecting rod 1 and the connecting rod 2 can be movable connected, and the spring 1 will push the connecting rod 1 Separate from the connecting rod 2, thereby controlling the pick to stay away from the groove, so that the pick is close to the resistor tube without loosening. By cooperating with the set clamping block and the limit block, when the pick is pushed by the top block 1 and the resistor When the tube is separated, slide the clamp block into the slot, then squeeze the special-shaped hook and engage it with the special-shaped hook to prevent the pick from rebounding and contacting the resistor tube, thus powering off the external voltage withstand test device of the transformer. Avoid personnel getting electric shock.
（4）、通过设置的顶块一可以使滑块一滑动到最顶端的时候使顶块一挤压拨片使拨片与电阻管分离，从而当数据测试到最大值之后进行断电，解决人员意外触电的风险，通过设置的顶块二，可以使变压器外施耐压实验装置在结束实验之后，电机控制滑块一复位的时候，通过顶块二顶起异形卡勾使异形卡勾与卡块分离，从而通过设置的弹力机构使拨片与电阻管重新接触，以便于循环实验，通过设置的支撑架和与变压器连接的输出端口，可以对待试验的变压器进行安装，而设置的接地柱则可以使电气设备漏电或电压过高时，电流通过地线进入大地，增加实验的安全性。(4) Through the set top block, when the slider slides to the top, the top block squeezes the pick to separate the pick from the resistor tube, so that when the data test reaches the maximum value, the power is cut off to solve the problem. There is a risk of accidental electric shock to personnel. By setting the top block 2, the transformer externally applied withstand voltage test device can be used to push up the special-shaped hook through the top block 2 when the motor control slider is reset after the experiment. The clamp block is separated, so that the pick and the resistance tube are re-contacted through the set elastic mechanism to facilitate the cycle experiment. Through the set support frame and the output port connected to the transformer, the transformer to be tested can be installed, and the set grounding post This can cause the current to enter the earth through the ground wire when the electrical equipment leaks or the voltage is too high, thereby increasing the safety of the experiment.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the drawings of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.
图1是根据本发明实施例的一种电力变压器外施耐压试验装置的结构示意图；Figure 1 is a schematic structural diagram of a power transformer externally applied withstand voltage test device according to an embodiment of the present invention;
图2是根据本发明实施例的一种电力变压器外施耐压试验装置中调节装置的结构示意图；Figure 2 is a schematic structural diagram of an adjustment device in an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention;
图3是图2中A处的放大图；Figure 3 is an enlarged view of point A in Figure 2;
图4是根据本发明实施例的一种电力变压器外施耐压试验装置中壳体的结构示意图；Figure 4 is a schematic structural diagram of a housing in an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention;
图5是图4中B处的放大图；Figure 5 is an enlarged view of B in Figure 4;
图6是根据本发明实施例的一种电力变压器外施耐压试验装置中滑块一的结构示意图；Figure 6 is a schematic structural diagram of slider one in an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention;
图7是图6中C处的放大图；Figure 7 is an enlarged view of C in Figure 6;
图8是根据本发明实施例的一种电力变压器外施耐压试验装置中传动轴的结构示意图。Figure 8 is a schematic structural diagram of a transmission shaft in an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention.
附图标记：Reference signs:
1、底座；2、检测装置；3、调节装置；4、壳体；5、电阻管；6、传动机构；7、动力机构；8、滑槽一；9、滑轨；10、滑块一；11、拨片；12、弹力机构；13、传动轴；14、滚珠；15、滑块二；16、通孔；17、异形螺旋槽；18、电机；19、锥齿轮一；20、锥齿轮二；21、保护套；22、连接杆一；23、连接杆二；24、弹簧一；25、凹槽；26、圆槽；27、连接杆三；28、卡块；29、限位块；30、卡槽；31、滑槽二；32、异形卡勾；33、弹簧二；34、顶块一；35、顶块二；36、支撑架；37、接地柱；38、连接板。1. Base; 2. Detection device; 3. Adjustment device; 4. Housing; 5. Resistor tube; 6. Transmission mechanism; 7. Power mechanism; 8. Slide 1; 9. Slide rail; 10. Slide 1 ; 11. Pick; 12. Elastic mechanism; 13. Drive shaft; 14. Ball; 15. Slider 2; 16. Through hole; 17. Special-shaped spiral groove; 18. Motor; 19. Bevel gear one; 20. Bevel Gear two; 21. Protective sleeve; 22. Connecting rod one; 23. Connecting rod two; 24. Spring one; 25. Groove; 26. Round groove; 27. Connecting rod three; 28. Block; 29. Limit block; 30, slot; 31, chute two; 32, special-shaped hook; 33, spring two; 34, top block one; 35, top block two; 36, support frame; 37, grounding column; 38, connecting plate .
具体实施方式Detailed ways
下面，结合附图以及具体实施方式，对发明做出进一步的描述：Below, the invention will be further described with reference to the accompanying drawings and specific embodiments:
实施例一：Example 1:
请参阅图1-8，根据本发明实施例的一种电力变压器外施耐压试验装置，所述底座1的上端连接有调节装置3，所述调节装置3包括壳体4、电阻管5、传动机构6和动力机构7，所述底座1的上端一侧固定连接有壳体4，所述壳体4内开设有滑槽一8，所述滑槽一8内固定连接有电阻管5，所述电阻管5的外侧设置有数量为四个的滑轨9，所述滑槽一8内滑动套设有滑块一10且滑动套设在所述滑轨9上，所述滑块一10内通过拨片11与所述电阻管5接触，通过设置的动力机构7驱动传动机构6，使滑块一10滑动，从而带动拨片11在电阻管5的外壁滑动，从而改变电阻管5的阻值，使电阻产生变化，从而控制试验装置对变压器进行增压，而设置的滑轨9可以提升滑块一10在滑动时候的稳定性，使试验装置的测试更加精准，所述滑块一10与所述拨片11之间通过弹力机构12连接，通过设置的弹力机构12，可以推动拨片11使拨片11紧贴电阻管5，避免拨片11松动与电阻管5分离导致测试数据不准确，所述滑块一10的一侧连接有所述传动机构6，所述传动机构6的上端设置有动力机构7，所述壳体4的一侧连接有检测装置2，通过设置的检测装置2可以对变压器进行施压，对变压器进行施压实验。Please refer to Figures 1-8. According to an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention, an adjustment device 3 is connected to the upper end of the base 1. The adjustment device 3 includes a housing 4, a resistance tube 5, The transmission mechanism 6 and the power mechanism 7 are fixedly connected to a housing 4 on one side of the upper end of the base 1. A chute 8 is provided in the housing 4, and a resistance tube 5 is fixedly connected to the chute 8. Four slide rails 9 are provided on the outside of the resistance tube 5. A slide block 10 is provided in the slide groove 8 and the slide block 10 is provided on the slide rail 9. The slide block 10 10, the pick 11 contacts the resistance tube 5, and the power mechanism 7 drives the transmission mechanism 6 to slide the slider 10, thereby driving the pick 11 to slide on the outer wall of the resistance tube 5, thereby changing the resistance tube 5 The resistance value changes, thereby controlling the test device to pressurize the transformer, and the provided slide rail 9 can improve the stability of the slider 10 when sliding, making the test of the test device more accurate. The slider The one 10 and the pick 11 are connected through an elastic mechanism 12. Through the provided elastic mechanism 12, the pick 11 can be pushed so that the pick 11 is close to the resistor tube 5, thereby preventing the pick 11 from loosening and being separated from the resistor tube 5, causing testing The data is inaccurate. One side of the slider 10 is connected to the transmission mechanism 6. The upper end of the transmission mechanism 6 is provided with a power mechanism 7. One side of the housing 4 is connected to the detection device 2. By setting The detection device 2 can apply pressure on the transformer and perform pressure experiments on the transformer.
通过本发明的上述方案，通过设置的动力机构7驱动传动机构6，使滑块一10滑动，从而带动拨片11在电阻管5的外壁滑动，从而改变电阻管5的阻值，使电阻产生变化，从而控制试验装置对变压器进行增压，而设置的滑轨9可以提升滑块一10在滑动时候的稳定性，使试验装置的测试更加精准，通过设置的弹力机构12，可以推动拨片11使拨片11紧贴电阻管5，避免拨片11松动与电阻管5分离导致测试数据不准确，通过设置的检测装置2可以对变压器进行施压，对变压器进行施压实验。Through the above solution of the present invention, the power mechanism 7 drives the transmission mechanism 6 to slide the slider 10, thereby driving the pick 11 to slide on the outer wall of the resistance tube 5, thereby changing the resistance value of the resistance tube 5, causing the resistance to be generated. changes, thereby controlling the test device to supercharge the transformer, and the provided slide rail 9 can improve the stability of the slider 10 when sliding, making the test of the test device more accurate. Through the provided elastic mechanism 12, the paddle can be pushed 11. Make the pick 11 close to the resistor tube 5 to prevent the pick 11 from loosening and being separated from the resistor tube 5, resulting in inaccurate test data. The set detection device 2 can be used to apply pressure on the transformer and perform a pressure test on the transformer.
实施例二：Example 2:
请参阅图2、图3和图8，根据本发明实施例的一种电力变压器外施耐压试验装置，所述传动机构6包括传动轴13和滚珠14，所述滑块一10的一侧固定连接有滑块二15，所述滑块二15的一侧开设有通孔16且活动套设有传动轴13，所述传动轴13的外壁开设有异形螺旋槽17，所述通孔16内活动嵌设有滚珠14，所述滚珠14的外壁与所述异形螺旋槽17接触，当传动轴13转动的时候，使滚珠14在异形螺旋槽17内滚动带动滑块二15移动从而使滑块一10滑动，而通过设置在传动轴13上的异形螺旋槽17，可以使滚珠14在传动轴13转动的时候间歇性抬升，使电阻匀速变化后暂停一定的时间，留给实验人员进行记录，便于对数据的精准测试，所述动力机构7包括电机18、锥齿轮一19和锥齿轮二20，所述壳体4的上端固定连接有保护套21，所述保护套21内设置有电机18且与所述壳体4固定连接，所述电机18的外轴固定连接有锥齿轮一19，所述锥齿轮一19的一侧啮合有锥齿轮二20，所述锥齿轮二20的下端与所述传动轴13固定连接，通过设置的电机18的转动使锥齿轮一19和锥齿轮二20转动，从而控制传动轴13转动，使滑块一10在滑槽一8内滑动，进而改变电阻管5的阻值。Please refer to Figure 2, Figure 3 and Figure 8. According to an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention, the transmission mechanism 6 includes a transmission shaft 13 and balls 14. One side of the slider 10 A slide block 15 is fixedly connected. A through hole 16 is provided on one side of the slide block 15 and a transmission shaft 13 is provided in a movable sleeve. A special-shaped spiral groove 17 is provided on the outer wall of the transmission shaft 13. The through hole 16 Balls 14 are movably embedded inside, and the outer wall of the ball 14 is in contact with the special-shaped spiral groove 17. When the transmission shaft 13 rotates, the ball 14 rolls in the special-shaped spiral groove 17 and drives the slider 2 15 to move, thereby causing the slider 15 to move. Block 10 slides, and through the special-shaped spiral groove 17 provided on the transmission shaft 13, the ball 14 can be lifted intermittently when the transmission shaft 13 rotates, so that the resistance changes at a uniform speed and then pauses for a certain period of time, leaving it for the experimenter to record , to facilitate accurate testing of data, the power mechanism 7 includes a motor 18, a bevel gear 19 and a bevel gear 20. The upper end of the housing 4 is fixedly connected with a protective cover 21, and a motor is provided in the protective cover 21 18 and is fixedly connected to the housing 4. The outer shaft of the motor 18 is fixedly connected to a bevel gear 19. One side of the bevel gear 19 is meshed with a bevel gear 20. The lower end of the bevel gear 20 is engaged with the bevel gear 19. Fixedly connected to the transmission shaft 13, the bevel gear 19 and the bevel gear 20 are rotated by the rotation of the motor 18, thereby controlling the rotation of the transmission shaft 13, causing the slider 10 to slide in the chute 8, thereby changing the The resistance of resistor tube 5.
通过本发明的上述方案，当传动轴13转动的时候，使滚珠14在异形螺旋槽17内滚动带动滑块二15移动从而使滑块一10滑动，而通过设置在传动轴13上的异形螺旋槽17，可以使滚珠14在传动轴13转动的时候间歇性抬升，使电阻匀速变化后暂停一定的时间，留给实验人员进行记录，便于对数据的精准测试，通过设置的电机18的转动使锥齿轮一19和锥齿轮二20转动，从而控制传动轴13转动，使滑块一10在滑槽一8内滑动，进而改变电阻管5的阻值。Through the above solution of the present invention, when the transmission shaft 13 rotates, the ball 14 rolls in the special-shaped spiral groove 17 to drive the slider 2 15 to move so that the slider 10 slides, and through the special-shaped spiral provided on the transmission shaft 13 The groove 17 can make the ball 14 rise intermittently when the transmission shaft 13 rotates, so that the resistance changes at a uniform speed and then pauses for a certain period of time, leaving it for the experimenter to record, which facilitates accurate testing of the data. Through the rotation of the set motor 18, the The first bevel gear 19 and the second bevel gear 20 rotate, thereby controlling the rotation of the transmission shaft 13 , causing the slider 10 to slide in the chute 8 , thereby changing the resistance of the resistor tube 5 .
实施例三：Embodiment three:
请参阅图4-7，根据本发明实施例的一种电力变压器外施耐压试验装置，所述弹力机构12包括连接杆一22、连接杆二23和弹簧一24，所述滑块一10靠近所述拨片11的一侧开设有凹槽25且通过转轴与所述拨片11活动连接，所述拨片11靠近所述凹槽25的一侧铰接有连接杆一22，所述凹槽25的内壁铰接有连接杆二23，所述连接杆一22的一侧开设有圆槽26，所述圆槽26内滑动套设有连接杆三27，所述连接杆三27远离所述连接杆一22的一端与所述连接杆二23固定连接，所述连接杆一22与所述连接杆二23之间固定连接有弹簧一24，通过设置在凹槽25内铰接的连接杆二23的一侧固定连接的连接杆三27，使连接杆一22与连接杆二23之间可以活动连接，而设置的弹簧一24则会推动连接杆一22和连接杆二23分离，从而控制拨片11远离凹槽25，使拨片11紧贴电阻管5且不会产生松动，所述拨片11靠近所述连接杆一22的一侧固定连接有卡块28，所述滑块一10靠近所述卡块28的一侧固定连接有限位块29，所述限位块29的一侧开设有与所述卡块28相配合的卡槽30，所述卡块28内开设有滑槽二31，所述滑槽二31内滑动设置有与所述卡块28相配合的异形卡勾32，所述异形卡勾32的上端与所述滑槽二31的内壁之间通过弹簧二33固定连接，通过设置的卡块28和限位块29配合，当拨片11受到顶块一34的推动而与电阻管5分离的时候，使卡块28滑入卡槽30内，然后挤压异形卡勾32并且与异形卡勾32卡接，避免拨片11回弹与电阻管5接触，从而使变压器外施耐压实验装置断电，避免人员触电。Please refer to Figures 4-7. According to an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention, the elastic mechanism 12 includes a connecting rod 22, a connecting rod 23 and a spring 24. The slider 10 A groove 25 is provided on one side of the paddle 11 and is movably connected to the paddle 11 through a rotating shaft. A connecting rod 22 is hinged on the side of the paddle 11 close to the groove 25. The groove 25 is hinged to the paddle 11. A connecting rod 23 is hinged to the inner wall of the groove 25. A circular groove 26 is provided on one side of the connecting rod 22. A connecting rod 27 is slidably sleeved in the circular groove 26. The connecting rod 27 is away from the connecting rod 27. One end of the connecting rod one 22 is fixedly connected to the connecting rod two 23. A spring 24 is fixedly connected between the connecting rod one 22 and the connecting rod two 23. The connecting rod two is hingedly arranged in the groove 25. The connecting rod three 27 is fixedly connected to one side of the connecting rod 23, so that the connecting rod one 22 and the connecting rod two 23 can be movable connected, and the provided spring 24 will push the connecting rod one 22 and the connecting rod two 23 to separate, thereby controlling The pick 11 is away from the groove 25, so that the pick 11 is close to the resistor tube 5 and will not become loose. The pick 11 is fixedly connected with a clamping block 28 on one side close to the connecting rod 22, and the slider 1 10 The side close to the blocking block 28 is fixedly connected to a limiting block 29. A blocking slot 30 is provided on one side of the limiting block 29 to match the blocking block 28. A sliding slide is provided in the blocking block 28. The second chute 31 is slidably provided with a special-shaped hook 32 that matches the blocking block 28 . The upper end of the special-shaped hook 32 and the inner wall of the second chute 31 are connected by two springs. 33 is fixedly connected, through the cooperation of the provided clamping block 28 and the limiting block 29, when the paddle 11 is pushed by the top block 34 and separated from the resistor tube 5, the clamping block 28 is slid into the slot 30, and then squeezed Press the special-shaped hook 32 and engage with the special-shaped hook 32 to prevent the pick 11 from rebounding and contacting the resistor tube 5, thereby powering off the externally applied withstand voltage test device of the transformer and preventing personnel from getting electric shock.
通过本发明的上述方案，通过设置在凹槽25内铰接的连接杆二23的一侧固定连接的连接杆三27，使连接杆一22与连接杆二23之间可以活动连接，而设置的弹簧一24则会推动连接杆一22和连接杆二23分离，从而控制拨片11远离凹槽25，使拨片11紧贴电阻管5且不会产生松动，通过设置的卡块28和限位块29配合，当拨片11受到顶块一34的推动而与电阻管5分离的时候，使卡块28滑入卡槽30内，然后挤压异形卡勾32并且与异形卡勾32卡接，避免拨片11回弹与电阻管5接触，从而使变压器外施耐压实验装置断电，避免人员触电。Through the above solution of the present invention, the connecting rod three 27 is fixedly connected to one side of the connecting rod two 23 that is hinged in the groove 25, so that the connecting rod one 22 and the connecting rod two 23 can be movable connected. The spring one 24 will push the connecting rod one 22 and the connecting rod two 23 to separate, thereby controlling the pick 11 to stay away from the groove 25, so that the pick 11 is close to the resistor tube 5 without loosening. The bit block 29 cooperates. When the paddle 11 is pushed by the top block 34 and separated from the resistor tube 5, the block 28 slides into the slot 30, and then squeezes the special-shaped hook 32 and snaps with the special-shaped hook 32. connection to prevent the pick 11 from rebounding and contacting the resistance tube 5, thereby powering off the external voltage withstand test device of the transformer and preventing personnel from getting electric shock.
实施例四：Embodiment 4:
请参阅图1、图2和图5，根据本发明实施例的一种电力变压器外施耐压试验装置，所述滑槽一8的上端固定连接有与所述拨片11相配合的顶块一34，通过设置的顶块一34可以使滑块一10滑动到最顶端的时候使顶块一34挤压拨片11使拨片11与电阻管5分离，从而当数据测试到最大值之后进行断电，解决人员意外触电的风险，所述滑槽一8的下端固定连接有与所述异形卡勾32相配合的顶块二35，通过设置的顶块二35，可以使变压器外施耐压实验装置在结束实验之后，电机18控制滑块一10复位的时候，通过顶块二35顶起异形卡勾32使异形卡勾32与卡块28分离，从而通过设置的弹力机构12使拨片11与电阻管5重新接触，以便于循环实验，所述检测装置2包括支撑架36和接地柱37，所述底座1的上端一侧固定连接有支撑架36，所述支撑架36的一侧通过连接板38连接有接地柱37，所述支撑架36的上端内侧固定连接有与变压器连接的输出端口，通过设置的支撑架36和与变压器连接的输出端口，可以对待试验的变压器进行安装，而设置的接地柱37则可以使电气设备漏电或电压过高时，电流通过地线进入大地，增加实验的安全性。Please refer to Figure 1, Figure 2 and Figure 5. According to an externally applied withstand voltage test device for a power transformer according to an embodiment of the present invention, the upper end of the chute 8 is fixedly connected with a top block that matches the paddle 11 134, through the set top block 34, when the slider 10 slides to the top, the top block 34 squeezes the pick 11 to separate the pick 11 from the resistor tube 5, so that when the data reaches the maximum value in the test To cut off the power and solve the risk of accidental electric shock, the lower end of the chute 8 is fixedly connected with a top block 35 that matches the special-shaped hook 32. Through the top block 35, the transformer can be applied externally. After the experiment of the pressure-resistant test device is completed, when the motor 18 controls the reset of the slider 10, the special-shaped hook 32 is pushed up by the second push block 35 to separate the special-shaped hook 32 from the blocking block 28, thereby causing the special-shaped hook 32 to separate from the blocking block 28. The pick 11 is in contact with the resistance tube 5 again to facilitate the cycle experiment. The detection device 2 includes a support frame 36 and a grounding post 37. The support frame 36 is fixedly connected to the upper end side of the base 1. The support frame 36 is One side is connected to a grounding post 37 through a connecting plate 38. The upper end of the support frame 36 is fixedly connected to an output port connected to the transformer. Through the provided support frame 36 and the output port connected to the transformer, the transformer to be tested can be tested. When the electrical equipment leaks or the voltage is too high, the current flows into the earth through the ground wire, thereby increasing the safety of the experiment.
通过本发明的上述方案，通过设置的顶块一34可以使滑块一10滑动到最顶端的时候使顶块一34挤压拨片11使拨片11与电阻管5分离，从而当数据测试到最大值之后进行断电，解决人员意外触电的风险，通过设置的顶块二35，可以使变压器外施耐压实验装置在结束实验之后，电机18控制滑块一10复位的时候，通过顶块二35顶起异形卡勾32使异形卡勾32与卡块28分离，从而通过设置的弹力机构12使拨片11与电阻管5重新接触，以便于循环实验，通过设置的支撑架36和与变压器连接的输出端口，可以对待试验的变压器进行安装，而设置的接地柱37则可以使电气设备漏电或电压过高时，电流通过地线进入大地，增加实验的安全性。Through the above solution of the present invention, when the slider 10 slides to the top through the top block 34, the top block 34 can squeeze the pick 11 to separate the pick 11 from the resistor tube 5, so that when the data is tested, After reaching the maximum value, the power is cut off to solve the risk of accidental electric shock. By setting the top block 235, the transformer externally applied withstand voltage experimental device can be reset by the top block 18 when the motor 18 controls the slider 10 after the end of the experiment. The second block 35 pushes up the special-shaped hook 32 to separate the special-shaped hook 32 from the blocking block 28, so that the pick 11 and the resistance tube 5 are re-contacted through the provided elastic mechanism 12 to facilitate the cycle experiment. Through the provided support frame 36 and The output port connected to the transformer can be installed on the transformer to be tested, and the grounding post 37 can allow the current to enter the earth through the ground wire when the electrical equipment leaks or the voltage is too high, thereby increasing the safety of the experiment.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
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| CN119716426A (en) * | 2024-12-24 | 2025-03-28 | 山东坤尚智能科技有限公司 | An externally applied withstand voltage test device for power transformer |
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| CN114047418A (en) * | 2022-01-11 | 2022-02-15 | 南通弘宸电气设备制造有限公司 | External application voltage withstand test equipment for power transformer |
| CN114941832A (en) * | 2022-06-14 | 2022-08-26 | 深圳市宇亿鑫照明科技有限公司 | Thing networking unreal color lamp area light adjusting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118465332A (en) * | 2024-07-09 | 2024-08-09 | 山东迅驰电气有限公司 | External voltage withstand test device of power transformer |
| CN119716426A (en) * | 2024-12-24 | 2025-03-28 | 山东坤尚智能科技有限公司 | An externally applied withstand voltage test device for power transformer |
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Denomination of invention: An external voltage withstand test device for power transformers Granted publication date: 20240305 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: JINAN RONGYAO HECHUANG ELECTRIC POWER TECHNOLOGY Co.,Ltd. Registration number: Y2024980057112 |