Electrical primary equipment comprehensive test device and method based on power load control

Abstract

The invention relates to the technical field of electrical equipment detection, and particularly discloses an electrical primary equipment comprehensive test device and method based on power load control, and the device comprises a test bench and a driving device which drives the test bench to move, the test bench is provided with a movable arm, and one end of the bottom of the movable arm is rotatably provided with a rotating sleeve; the conductive block is connected with detection equipment in the test bed through a wire, and the top of the rotating sleeve is provided with a driving source for driving the rotating sleeve to rotate. Through the structure of the first telescopic rod, the second telescopic rod, the third telescopic rod and the movable arm, flexible position adjustment between the test bed and the transformer is achieved, the adaptability of the device to electrical equipment of different sizes is greatly enhanced, the problem of wiring errors caused by manual wiring is avoided, the movable arm and the lifting base are matched to form the three-dimensional motion ability, and the stability of the device is improved. And the conductive block can be accurately butted with wiring terminals with different heights and angles, so that the field operation efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment detection, and particularly to a comprehensive test device and method for primary electrical equipment based on power load control. Background Art

[0002] Power load control (also known as load management) refers to a systematic measure of regulating and managing the electrical load of a power system through technical and other means to achieve the safe, economic, and efficient operation of the power grid. Its core goal is to cut peaks and fill valleys, balance the load curve, thereby improving the economy, safety, and energy utilization efficiency of power grid operation; For example, in the prior art patent with the publication number CN112462094B, titled "A Special Test Line Clip for the Loop Resistance of a Main Transformer Bushing and Its Usage Method", it includes a movable jaw and a fixed jaw arranged relatively parallel. The lower end of the fixed jaw is fixedly connected to a fixed handle. The lower end of the movable jaw is fixedly connected to a connecting plate through a horizontal adjustment mechanism. The right lower end of the connecting plate is hinged to the left side of the fixed handle and can self-align. The left lower end of the connecting plate is hinged to a movable handle and can self-align. The right side of the movable handle is hinged to one end of a thrust rod. The other end of the thrust rod is hinged into the fixed handle and can move up and down along the fixed handle. There is a screw rod abutted against the lower side of the other end of the thrust rod. The screw rod is threadedly connected to the lower end of the fixed handle. The middle part of the lower side of the connecting plate is obliquely connected to the fixed handle through a spring; Since an oxide layer will be generated after the test contact and the winding terminal are in contact instantaneously, the reason for the generation of the oxide layer is as follows: The metal surface seems smooth, but actually consists of an uneven micro-structure; when the test holder contacts the terminal, only part of the convex regions actually contact, and the effective contact area is much smaller than the apparent area. This insufficient contact will lead to an increase in local current density, and the current is concentrated at a few contact points, which may cause local high temperature, accelerate the oxidation reaction, and the metal exposed to the air (such as copper and aluminum) will spontaneously react with oxygen to form an oxide film (such as Cu2O, Al2O3), and it cannot be avoided even for short-term contact; Therefore, when performing a resistance test on power grid equipment such as a transformer, it is usually necessary to clean the oxide layer by friction first to ensure the conduction efficiency and then ensure the accuracy of the test results. However, the equipment in the prior art does not have this function when connecting to the wiring terminal, and the formed oxide film will significantly reduce the conduction efficiency, resulting in inaccurate test results. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] The present invention provides a comprehensive test device and method for primary electrical equipment based on power load control, which can solve the problem of low detection efficiency in the prior art. The specific solution is as follows: On the one hand, the present invention provides a comprehensive test device for primary electrical equipment based on power load control, including a test bench and a driving device for driving the test bench to move. An activity arm is provided on the test bench. One end of the bottom of the activity arm is rotatably installed with a rotating sleeve, and a conductive block that rotates synchronously with the rotating sleeve. The conductive block is connected to the detection equipment inside the test bench through a wire. The top of the rotating sleeve has a driving source for driving its rotation. The activity arm is connected to the test bench through a first telescopic rod and / or a second telescopic rod; The first telescopic rod and / or the second telescopic rod is used to drive the activity arm and the conductive block to approach the terminal on the electrical equipment, so that the bottom of the conductive block abuts against the top of the terminal. A grounding device is also provided at the bottom of the test bench. The grounding device is connected to the grounding part of the electrical equipment to form a detection circuit for detecting the resistance of the electrical equipment.

[0005] Preferably, two clamping plates are provided below the activity arm. The two clamping plates can approach each other or move away from each other. When the two clamping plates approach each other, they can clamp the terminal.

[0006] Preferably, a gas generation cavity is provided inside the activity arm. A gas generator is slidably installed in the gas generation cavity. The gas generator is connected to the inside of the activity arm through a fourth telescopic rod. One end of the gas generation cavity is communicated with one of the clamping plates through an air outlet hole, an extension pipe, a fixed pipe and a spray hole. When the gas generator slides under the drive of the fourth telescopic rod, the gas on the right side of the gas generation cavity is squeezed, so that the gas sequentially enters the spray hole from the air outlet hole, the extension pipe and the fixed pipe, and finally sprays onto the top of the terminal to remove the dust and dirt on the contact part at the top of the terminal.

[0007] Preferably, a rotation hole is provided on the activity arm. A conductive column is provided inside the rotating sleeve. The conductive block is provided at the bottom of the rotating sleeve. The conductive block can rotate synchronously with the rotating sleeve. The top of the conductive block is electrically connected to the detection equipment inside the test bench through a wire.

[0008] Preferably, an extrusion sleeve is provided outside the conductive block. The conductive block is slidably installed in the extrusion sleeve. The extrusion sleeve is sleeved at the bottom of the rotating sleeve. A fourth spring is connected between the top of the extrusion sleeve and the outer wall of the rotating sleeve. And a fifth spring is connected between the bottom of the inner wall of the conductive block and the extrusion sleeve. The top of the conductive block is connected with a conductive sheet through a conductive spring. The top of the conductive sheet contacts the bottom of the conductive column. The conductive column and the conductive block are connected in series through the conductive sheet and the conductive spring.

[0009] Preferably, a driven bevel gear is fixedly connected to the top of the rotating sleeve. A driving bevel gear is arranged on one side of the driven bevel gear. A receiving groove is formed in the top of the movable arm. The driven bevel gear and the driving bevel gear are received in the receiving groove. The driven bevel gear and the driving bevel gear are meshed at a right angle. The driving bevel gear is rotatably installed inside the movable arm and can rotate driven by a driving source.

[0010] Preferably, one end of the driving bevel gear is connected to a driving sleeve. A driving column is arranged at the open end of the driving sleeve. A spiral groove is formed in the inner wall of the driving sleeve. One end of the driving column close to the driving sleeve is connected to a driving ball. The other end of the driving column is fixed to the gas generator. The driving ball is configured to slide inside the spiral groove.

[0011] Preferably, a support base is arranged outside the first telescopic rod. An accommodating groove for accommodating the first telescopic rod is arranged inside the support base. The bottom of the first telescopic rod is fixedly connected to the bottom inner wall of the accommodating groove. A lifting base is arranged below the movable arm. One end of the lifting base is slidably connected to the inside of the support base. The bottom of the lifting base and the bottom inner wall of the support base are connected by a second telescopic rod. One side of the support base close to the test bench is fixedly connected to a third telescopic rod. The third telescopic rod is fixedly connected to the top of the test bench through a support plate.

[0012] Preferably, fixing sleeves are arranged on the outer sides of the two clamping plates. The top of the fixing sleeve is fixedly connected to the bottom of the movable arm. One end of the clamping plate close to the fixing sleeve is connected to a limiting sleeve. The limiting sleeve is slidably connected to the outside of the fixing sleeve. A limiting block is arranged inside the limiting sleeve. The limiting block is slidably connected to the inside of the fixing sleeve. One end of the limiting block is connected to a first spring. The other end of the first spring is fixed to the inner wall of the fixing sleeve.

[0013] On the other hand, the present invention provides a comprehensive test method for primary electrical equipment based on power load control, including the following steps: S1. Move the test bench to the vicinity of the electrical equipment to be tested through a driving device; S2. Control the first telescopic rod and / or the second telescopic rod to adjust the position of the movable arm so that the conductive block at the bottom of the movable arm approaches the wiring terminal of the electrical equipment; S3. Drive the rotating sleeve to drive the conductive block to rotate until the bottom of the conductive block abuts against the top of the wiring terminal; S4. Connect the conductive block to the detection equipment inside the test bench through a wire, and at the same time connect the grounding device to the grounding part of the electrical equipment to form a closed detection loop; S5. Start the detection equipment to measure the resistance of the electrical equipment and analyze the detection results based on the power load control parameters.

[0014] Compared with the prior art, the present invention can at least achieve one of the following beneficial effects: 1. Through the first telescopic rod, the second telescopic rod, the third telescopic rod and the movable arm structure, the present invention realizes flexible position adjustment between the test bench and the transformer, greatly enhancing the adaptability of the device to electrical equipment of different sizes, avoiding wiring errors caused by manual wiring. The three-dimensional movement ability formed by the cooperation of the movable arm and the lifting seat enables the conductive block to accurately dock with the wiring terminals at different heights and angles, significantly improving the on-site operation efficiency.

[0015] 2. The clamping device of the present invention realizes self-adaptive clamping of the wiring terminal through the buffer structure of the inclined plane and the first spring. When the movable arm descends, the clamping plate can automatically adjust the opening and closing angle according to the thickness of the terminal, and cooperate with the continuous pressing force of the first spring to form stable clamping, which not only avoids manual operation errors, but also effectively prevents the wiring terminal from shaking during the detection process, ensuring the reliability of the test data.

[0016] 4. The present invention uses the pneumatic transmission principle through the integrated gas cleaning system. A directional air flow is generated in the gas generating cavity inside the movable arm. When the air jet hole accelerates the air flow by the Bernoulli effect, the oxide layer and dust on the surface of the wiring terminal can be accurately removed. This physical cleaning method can restore the state of the conductive contact surface without chemical reagents, providing a clean test environment for subsequent resistance detection.

[0017] 5. The conductive block of the present invention uses the transmission design of the driving bevel gear and the driven bevel gear to effectively remove the oxide film on the contact surface through the rotational friction of the conductive block. The fourth spring, the fifth spring and the conductive spring form a flexible contact protection mechanism while ensuring stable conductive pressure, which can not only break through the interference of contact resistance, but also avoid mechanical damage to the equipment caused by rigid contact, double guaranteeing the accuracy of the detection data.

[0018] 6. The grounding device of the present invention realizes self-adaptive grounding through the spring pre-tightening structure of the second. When the test bench moves, the grounding post can adaptively adjust the extended length according to the position of the equipment, always maintaining reliable contact with the transformer shell. This dynamic grounding method overcomes the problem that traditional fixed grounding wires are prone to looseness, forms a continuous and stable safety loop, and significantly improves the safety of the detection process.

[0019] Other features and advantages of the present invention will be described in subsequent embodiments, and some of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them: Figure 1 Isometric view of the present invention during detection; Figure 2 Side view of the present invention; Figure 3 Side sectional view of the present invention; Figure 4 Cross-sectional view of the movable arm and the clamping plate of the present invention; Figure 5 Isometric view of the movable arm and the lifting seat of the present invention; Figure 6 Another side sectional view of the movable arm of the present invention; Figure 7 Isometric view of the clamping plate and the gas generator of the present invention; Figure 8 Installation schematic diagram of the clamping plate of the present invention; Figure 9 Installation schematic diagram of the grounding device of the present invention; Figure 10 Partial sectional view of the movable arm of the present invention; Figure 11 Cross-sectional view of parts such as the rotating sleeve and the conductive block of the present invention; Figure 12 Structural schematic diagram of the drive sleeve of the present invention; Figure 13 Structural schematic diagram of the drive sleeve and the drive column of the present invention.

[0021] Among them, the reference numerals are as follows: 1. Test bench; 2. Driving device; 3. Transformer; 4. Terminal; 5. Movable arm; 6. First telescopic rod; 7. Support base; 8. Lifting seat; 9. Second telescopic rod; 10. Third telescopic rod; 11. Gas generation chamber; 12. Gas generator; 13. Pressure relief hole; 14. Fourth telescopic rod; 15. Clamping plate; 16. Fixed sleeve; 17. Limiting sleeve; 18. First spring; 19. Limiting block; 20. Sliding sleeve; 21. Grounding post; 22. Movable post; 23. Second spring; 24. Air outlet; 25. Extension pipe; 26. Jet hole; 27. Fixed pipe; 28. Rotation hole; 29. Conductive block; 30. Driven bevel gear; 31. Wire; 32. Rotating sleeve; 33. Conductive post; 34. Driving bevel gear; 35. Third spring; 36. Lid; 37. Extrusion sleeve; 38. Fourth spring; 39. Fifth spring; 40. Conductive sheet; 41. Conductive spring; 42. Driving sleeve; 43. Driving post; 44. Spiral groove; 45. Driving ball. Detailed implementation manner

[0022] The following will specifically describe the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings form a part of the present invention and are used together with the embodiments of the present invention to explain the principle of the present invention.

[0023] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 shown, this embodiment provides a comprehensive test device for primary electrical equipment based on power load control, including a test bench 1 and a driving device 2 that provides power for the test bench 1. The driving device 2 is driven by electricity or gasoline to enable the test bench 1 to approach the electrical equipment to be detected. In this embodiment, the electrical equipment is a transformer 3, and a terminal 4 is provided on the top of the transformer 3.

[0024] As Figure 4 , Figure 5 , Figure 6 shown, a movable arm 5 is provided above the test bench 1. A first telescopic rod 6 is provided at the bottom of the movable arm 5. A support base 7 is provided outside the first telescopic rod 6. An accommodation groove for accommodating the first telescopic rod 6 is provided inside the support base 7. The bottom of the first telescopic rod 6 is fixedly connected to the bottom of the inner wall of the accommodation groove. A lifting seat 8 is provided below the movable arm 5. One end of the lifting seat 8 is slidably connected to the inside of the support base 7. A second telescopic rod 9 is connected between the bottom of the lifting seat 8 and the bottom of the inner wall of the support base 7; A third telescopic rod 10 is fixedly connected to one side of the support base 7 close to the test bench 1. The third telescopic rod 10 is fixedly connected to the top of the test bench 1 through a support plate. It should be noted that the above-mentioned first telescopic rod 6, second telescopic rod 9, and third telescopic rod 10 can be electric telescopic rods or hydraulic telescopic rods; In the above solution, through the third telescopic rod 10, it is possible to control the support base 7, the lifting base 8, and the movable arm 5 to approach or move away from the transformer 3, facilitating subsequent detection of the resistance value of the transformer 3.

[0025] As Figure 6 shown, a gas generation chamber 11 is provided inside the movable arm 5. The gas generation chamber 11 is located in the middle of the movable arm 5. A gas generator 12 is provided inside the gas generation chamber 11. The gas generator 12 can be made of rubber. When the gas generator 12 slides inside the gas generation chamber 11, it can cause the gas in the gas generation chamber 11 to be squeezed in the pushing direction of the gas generator 12. A pressure relief hole 13 is also provided at one end of the gas generation chamber 11. One end of the gas generator 12 is connected to a fourth telescopic rod 14. The fourth telescopic rod 14 is installed inside the movable arm 5 and is used to drive the gas generator 12 to reciprocate inside the gas generation chamber 11.

[0026] As Figure 7 、 Figure 8 shown, two clamping plates 15 are provided at one end of the movable arm 5 away from the lifting base 8. The two clamping plates 15 can approach or move away from each other. When the two clamping plates 15 approach each other, they can clamp the terminal 4 to prevent the terminal 4 from shaking during detection. Fixed sleeves 16 are provided on the outer sides of the two clamping plates 15. The top of the fixed sleeve 16 is fixedly connected to the bottom of the movable arm 5. One end of the clamping plate 15 close to the fixed sleeve 16 is connected to a limit sleeve 17. The limit sleeve 17 is slidably connected to the outside of the fixed sleeve 16. A limit block 19 is provided inside the limit sleeve 17. The limit block 19 is slidably connected to the inside of the fixed sleeve 16, enabling the clamping plates 15, the limit block 19, and the limit sleeve 17 to slide along the inside of the fixed sleeve 16. A first spring 18 is also connected to one end of the limit block 19. The other end of the first spring 18 is fixedly connected to the inner wall of the fixed sleeve 16. An inclined surface is provided below the side where the two clamping plates 15 approach each other. The function of this inclined surface is that when the two clamping plates 15 are driven by the movable arm 5 to move from above the terminal 4 to below the terminal 4, they can adapt to the end of the terminal 4. The first spring 18 adaptively contracts according to the thickness of the terminal 4, and at the same time, due to the elastic force of the first spring 18, the two clamping plates 15 clamp the terminal 4.

[0027] As Figure 9As shown in the figure, a grounding device is also provided below the test bench 1. The grounding device includes a grounding post 21. A sliding sleeve 20 is sleeved outside the grounding post 21. The sliding sleeve 20 is fixedly connected to the bottom of the test bench 1. One end of the grounding post 21 close to the test bench 1 is connected with a movable post 22. The conductive core of the grounding post 21 passes through the middle of the movable post 22. A second spring 23 is connected between one end of the movable post 22 and the middle of the sliding sleeve 20. The default state of the second spring 23 can make the grounding post 21 extend out of the test bench 1. When the driving device 2 drives the test bench 1 to approach the transformer 3, under the elastic action of the second spring 23, the end of the grounding post 21 contacts the grounded part of the outer shell of the transformer 3. The grounding post 21 is electrically connected to the detection device inside the test bench 1 through the wire core.

[0028] As Figure 10 shown in the figure, an air outlet hole 24 is opened inside the movable arm 5. One end of the air outlet hole 24 is communicated with one end of the gas generation chamber 11. The other end of the air outlet hole 24 penetrates to the lower part of the movable arm 5 and is connected with an extension pipe 25; a gas spraying hole 26 is opened in the middle of the clamping plate 15 on one side close to the extension pipe 25. Both ends of the gas spraying hole 26 penetrate the thickness direction of the clamping plate 15 obliquely. One end of the gas spraying hole 26 close to the extension pipe 25 is connected with a fixed pipe 27. The fixed pipe 27 and the extension pipe 25 are sleeved and connected with each other, and their contact surfaces are in close contact to form a seal. Specifically, the seal can be achieved by means of a sealing ring. In the above solution, when the gas generator 12 slides driven by the fourth telescopic rod 14, the gas on the right side of the gas generation chamber 11 can be squeezed, so that the gas sequentially enters the gas spraying hole 26 from the air outlet hole 24, the extension pipe 25, and the fixed pipe 27, and then passes through the narrowed part in the middle of the gas spraying hole 26. Based on the continuity equation and Bernoulli effect in fluid mechanics, the velocity of the sprayed gas increases, so as to remove the dust and dirt on the contact part at the top of the terminal 4. As Figure 9 、 Figure 10 shown in the figure, a rotating hole 28 is opened on the movable arm 5. A rotating sleeve 32 is arranged inside the rotating hole 28. A conductive post 33 is arranged inside the rotating sleeve 32. A conductive block 29 is arranged at the bottom of the rotating sleeve 32. The conductive block 29 can rotate synchronously with the rotating sleeve 32. The top of the conductive block 29 is electrically connected to the detection device inside the test bench 1 through a wire 31. Through the above solution, a loop is formed by the conductive block 29, the conductive post 33, the wire 31, the detection device, the grounding post 21, the components inside the transformer 3, and the terminal 4. In order to ensure stable connection, the bottom end of the wire 31 is connected to the cover 36 through a third spring 35, so that the bottom end of the wire 31 is always in contact with the conductive post 33 to avoid poor contact. The cover 36 covers the top of the movable arm 5, so that the detection device can detect the resistance of the transformer 3.

[0029] As shown in Figure 10 and Figure 11 , a driven bevel gear 30 is fixedly connected to the top of the rotating sleeve 32. A driving bevel gear 34 is arranged on one side of the driven bevel gear 30. A receiving groove is formed at the top of the movable arm 5. The driven bevel gear 30 and the driving bevel gear 34 are received in the receiving groove. A lid 36 is fixed to the top of the receiving groove. The driven bevel gear 30 and the driving bevel gear 34 are in a right-angle meshing state. The driving bevel gear 34 is rotatably installed inside the movable arm 5, and the driving bevel gear 34 can rotate driven by a driving source; In the above solution, when the driving bevel gear 34 rotates, due to the meshing effect, it can drive the driven bevel gear 30 to rotate synchronously. The rotating sleeve 32 and the conductive block 29 of the driven bevel gear 30 rotate synchronously. Thus, when the conductive block 29 contacts the top of the terminal 4, the oxide layer generated by the contact between the two can be removed through the rotation effect, thereby improving the conduction efficiency and increasing the accuracy of the detection result.

[0030] As shown in Figure 11 , in order to ensure the connection reliability between the conductive block 29 and the terminal 4, the specific configuration method of the conductive block 29 and the conductive column 33 is as follows: The conductive block 29 is slidably installed in the extrusion sleeve 37. The extrusion sleeve 37 is sleeved on the bottom of the rotating sleeve 32, and the two form a limiting structure that is buckled with each other ( Figure 11 as shown). A fourth spring 38 is connected between the top of the extrusion sleeve 37 and the outer wall of the rotating sleeve 32. A fifth spring 39 is also connected between the bottom of the inner wall of the conductive block 29 and the extrusion sleeve 37. The top of the conductive block 29 is connected to a conductive sheet 40 through a conductive spring 41. The top of the conductive sheet 40 contacts the bottom of the conductive column 33. The conductive column 33 and the conductive block 29 are connected in series through the conductive sheet 40 and the conductive spring 41; In the above solution, when the rotating sleeve 32 and the movable arm 5 descend synchronously and the conductive block 29 contacts the top of the terminal 4, under the action of the fourth spring 38, the fifth spring 39 and the conductive spring 41, the extrusion sleeve 37, the conductive block 29 and the conductive sheet 40 can all be further compressed. Thus, the descending distance of the movable arm 5 only needs to be specified within a certain range, providing a buffer redundancy space to avoid rigid contact and damage to the terminal 4.

[0031] As shown in Figure 12 and Figure 13As shown in the figure, as a way to drive the driving bevel gear 34 to rotate, one end of the driving bevel gear 34 is connected with a driving sleeve 42. At the open end of the driving sleeve 42, that is, the end close to the gas generating chamber 11, a driving column 43 is provided. A spiral groove 44 is formed on the inner wall of the driving sleeve 42. One end of the driving column 43 close to the driving sleeve 42 is connected with a driving ball 45. The other end of the driving column 43 is fixed to the gas generator 12. The driving ball 45 is configured to slide inside the spiral groove 44; In the above solution, when the fourth telescopic rod 14 drives the gas generator 12 to move, it can drive the driving column 43 to move at the same time. The driving ball 45 at the end of the driving column 43 slides inside the driving sleeve 42. Since there is a limiting structure between the gas generator 12 and the gas generating chamber 11, the gas generator 12 and the driving column 43 can only move along the axis and cannot rotate. Therefore, the driving sleeve 42 can rotate under the push of the driving ball 45 and the spiral groove 44; And in actual application, it is divided into the following steps: When the whole movable arm 5 is above the terminal 4, this distance can make the air jet hole 26 align with the upper part of the terminal 4. At this time, the movable arm 5 can remain stationary. Then, the fourth telescopic rod 14 drives the gas generator 12 to move, squeezing the gas on the right side of the gas generating chamber 11, so that the gas sequentially enters the air jet hole 26 from the air outlet hole 24, the extension pipe 25, and the fixed pipe 27. Then, through the narrowed part in the middle of the air jet hole 26, based on the continuity equation and Bernoulli effect in fluid mechanics, the velocity of the ejected gas increases, so as to remove the dust and dirt on the contact part at the top of the terminal 4; Then the movable arm 5 continues to descend, making the conductive block 29 abut against the top of the terminal 4 (and can continue to press down to cause the fourth spring 38, the fifth spring 39, and the conductive spring 41 to be squeezed to avoid poor contact). At this time, the gas generator 12 and the driving column 43 move the driving sleeve 42 to the left. Through the action of the driving ball 45 and the spiral groove 44, the driving sleeve 42 and the driving bevel gear 34 rotate, thereby driving the conductive block 29 to rotate synchronously. When the conductive block 29 contacts the top of the terminal 4, the oxide layer generated by the contact between the two can be removed through the rotation effect, thereby improving the conduction efficiency and increasing the accuracy of the detection result.

[0032] Embodiment 2: The technical solution of this embodiment is different from that of Embodiment 1 in that this embodiment provides an integrated test method for primary electrical equipment based on power load control, including the following steps: S1. Drive the test bench 1 close to the transformer 3 through the driving device 2, so that the grounding device contacts the grounding area on the transformer 3; S2. Fine-tune the driving device 2 so that the end of the movable arm 5 aligns with the upper part of the terminal 4; S3. When the entire movable arm 5 is above the terminal 4, drive the gas generator 12 to move through the fourth telescopic rod 14, squeeze the gas on the right side of the gas generation chamber 11, so that the gas sequentially enters the jet hole 26 from the air outlet hole 24, the extension pipe 25, and the fixed pipe 27, and then passes through the narrowing part in the middle of the jet hole 26. Based on the continuity equation and Bernoulli effect in fluid mechanics, the velocity of the ejected gas increases, thereby removing the dust and dirt on the contact part at the top of the terminal 4; S4. The movable arm 5 continues to descend, making the conductive block 29 abut against the top of the terminal 4 (and can continue to be pressed down to cause the fourth spring 38, the fifth spring 39, and the conductive spring 41 to be squeezed to avoid poor contact). At this time, the gas generator 12 and the driving column 43 move the driving sleeve 42 to the left. Through the action of the driving ball 45 and the spiral groove 44, the driving sleeve 42 and the driving bevel gear 34 rotate, thereby driving the conductive block 29 to rotate synchronously. When the conductive block 29 contacts the top of the terminal 4, the oxide layer generated by the contact between the two can be removed through rotation, thereby improving the conduction efficiency and increasing the accuracy of the detection result; S5. The detection equipment inside the test bench 1 starts to work, and detects the resistance of the transformer 3 through current and voltage.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The terms "first", "second", "third", "fourth", etc. (if any) in the description of the embodiments of this application, the specification, the claims and the above drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0035] The devices or elements referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operate in a specific orientation, and thus cannot be construed as a limitation on the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An integrated test device for primary electrical equipment based on electric load control, comprising a test bench (1) and a driving device (2) for driving the test bench (1) to move, characterized in that: The test bench (1) is provided with a movable arm (5). One end of the bottom of the movable arm (5) is rotatably installed with a rotating sleeve (32), and a conductive block (29) that rotates synchronously with the rotating sleeve (32). The conductive block (29) is connected to the detection device inside the test bench (1) through a wire (31). The top of the rotating sleeve (32) has a driving source for driving its rotation. The movable arm (5) is connected to the test bench (1) through a first telescopic rod (6) and / or a second telescopic rod (9). The first telescopic rod (6) and / or the second telescopic rod (9) is used to drive the movable arm (5) and the conductive block (29) to approach the terminal (4) on the electrical equipment, so that the bottom of the conductive block (29) abuts against the top of the terminal (4). The bottom of the test bench (1) is also provided with a grounding device, and the grounding device is connected to the grounding part of the electrical equipment to form a detection circuit for detecting the resistance of the electrical equipment.

2. The integrated test device for primary electrical equipment based on power load control according to claim 1, characterized in that: There are two clamping plates (15) arranged below the movable arm (5). The two clamping plates (15) can approach or move away from each other. When the two clamping plates (15) approach each other, they can clamp the terminal (4).

3. The integrated test device for primary electrical equipment based on power load control according to claim 2, characterized in that: A gas generation chamber (11) is arranged inside the movable arm (5). A gas generator (12) is slidably installed in the gas generation chamber (11). The gas generator (12) is connected to the inside of the movable arm (5) through a fourth telescopic rod (14). One end of the gas generation chamber (11) is communicated with one of the clamping plates (15) through an air outlet hole (24), an extension pipe (25), a fixed pipe (27) and a jet hole (26). When the gas generator (12) slides under the drive of the fourth telescopic rod (14), the gas on the right side of the gas generation chamber (11) is squeezed, so that the gas sequentially enters the jet hole (26) from the air outlet hole (24), the extension pipe (25), and the fixed pipe (27), and finally sprays onto the top of the terminal (4) to remove the dust and dirt on the contact part at the top of the terminal (4).

4. The integrated test device for primary electrical equipment based on electric load control according to claim 1, characterized in that: A rotation hole (28) is formed in the movable arm (5). A conductive column (33) is arranged inside the rotating sleeve (32). The conductive block (29) is arranged at the bottom of the rotating sleeve (32). The conductive block (29) can rotate synchronously with the rotating sleeve (32). The top of the conductive block (29) is electrically connected to the detection device inside the test bench (1) through a wire (31).

5. The integrated test device for primary electrical equipment based on power load control according to claim 4, characterized in that: An extrusion sleeve (37) is arranged outside the conductive block (29). The conductive block (29) is slidably installed in the extrusion sleeve (37). The extrusion sleeve (37) is sleeved at the bottom of the rotating sleeve (32). A fourth spring (38) is connected between the top of the extrusion sleeve (37) and the outer wall of the rotating sleeve (32). And a fifth spring (39) is connected between the bottom of the inner wall of the conductive block (29) and the extrusion sleeve (37). The top of the conductive block (29) is connected with a conductive sheet (40) through a conductive spring (41). The top of the conductive sheet (40) is in contact with the bottom of the conductive column (33). The conductive column (33) and the conductive block (29) are connected in series through the conductive sheet (40) and the conductive spring (41).

6. The comprehensive test device for primary electrical equipment based on power load control according to claim 1, characterized in that: A driven bevel gear (30) is fixedly connected to the top of the rotating sleeve (32). A driving bevel gear (34) is arranged on one side of the driven bevel gear (30). A receiving groove is formed at the top of the movable arm (5). The driven bevel gear (30) and the driving bevel gear (34) are received in the receiving groove. The driven bevel gear (30) and the driving bevel gear (34) are meshed at a right angle. The driving bevel gear (34) is rotatably installed inside the movable arm (5), and the driving bevel gear (34) can rotate driven by a driving source.

7. The integrated test device for primary electrical equipment based on power load control according to claim 6, characterized in that: One end of the driving bevel gear (34) is connected to a driving sleeve (42). A driving column (43) is arranged at the open end of the driving sleeve (42). A spiral groove (44) is formed on the inner wall of the driving sleeve (42). One end of the driving column (43) close to the driving sleeve (42) is connected to a driving ball (45). The other end of the driving column (43) is fixed to the gas generator (12). The driving ball (45) is configured to slide inside the spiral groove (44).

8. The integrated test device for primary electrical equipment based on electric load control according to claim 1, characterized in that: A support base (7) is arranged outside the first telescopic rod (6). An accommodating groove for accommodating the first telescopic rod (6) is arranged inside the support base (7). The bottom of the first telescopic rod (6) is fixedly connected to the bottom inner wall of the accommodating groove. A lifting seat (8) is arranged below the movable arm (5). One end of the lifting seat (8) is slidably connected to the inside of the support base (7). The bottom of the lifting seat (8) and the bottom inner wall of the support base (7) are connected by a second telescopic rod (9). One side of the support base (7) close to the test bench (1) is fixedly connected to a third telescopic rod (10). The third telescopic rod (10) is fixedly connected to the top of the test bench (1) through a support plate.

9. The integrated test device for primary electrical equipment based on power load control according to claim 1, wherein: Fixed sleeves (16) are arranged outside the two clamping plates (15). The top of the fixed sleeve (16) is fixedly connected to the bottom of the movable arm (5). One end of the clamping plate (15) close to the fixed sleeve (16) is connected to a limiting sleeve (17). The limiting sleeve (17) is slidably connected to the outside of the fixed sleeve (16). A limiting block (19) is arranged inside the limiting sleeve (17). The limiting block (19) is slidably connected to the inside of the fixed sleeve (16). One end of the limiting block (19) is connected to a first spring (18). The other end of the first spring (18) is fixed to the inner wall of the fixed sleeve (16).

10. A comprehensive test method for primary electrical equipment based on power load control, which uses the comprehensive test device for primary electrical equipment based on power load control according to any one of claims 1-9, characterized in that, Including the following steps: S1. Move the test bench (1) to the vicinity of the electrical equipment to be tested through the driving device (2); S2. Control the first telescopic rod (6) and / or the second telescopic rod (9) to adjust the position of the movable arm (5) so that the conductive block (29) at the bottom of the movable arm (5) approaches the terminal (4) of the electrical equipment; S3. Drive the rotating sleeve (32) to drive the conductive block (29) to rotate until the bottom of the conductive block (29) abuts against the top of the terminal (4); S4. Conduct the conductive block (29) and the detection equipment inside the test bench (1) through a wire (31), and at the same time connect the grounding device to the grounding part of the electrical equipment to form a closed detection loop; S5. Start the detection equipment to measure the resistance of the electrical equipment and analyze the detection results based on the power load control parameters.

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