A universal maintenance platform for clamp-type isolating switches

Abstract

The present invention discloses a universal maintenance platform for clamp-type isolating switches, including an isolating switch fixing platform, a vertical isolating switch test system and a horizontal isolating switch test system; the vertical isolating switch test system includes a rotating rod, a first clamping force test rod and a first loop resistance test rod, the rotating rod is vertically arranged on the isolating switch fixing platform, the first clamping force test rod and the first loop resistance test rod are arranged at the upper end of the rotating rod, and can rotate with the rotating rod; the horizontal isolating switch test system includes a rotating base arranged on one side of the isolating switch fixing platform, the rotating base is provided with a second clamping force test rod and a second loop resistance test rod rotating with the rotating base. The present application can provide different test rods to simulate real test conditions according to different measurement requirements, and can also be compatible with the measurement of multiple isolating switches at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of isolating switch maintenance, in particular to a universal maintenance platform for clamp-type isolating switches. Background Art

[0002] With the rapid development of power systems, the requirements for power grid safety, reliability, automation level of electrical switchgear and maintenance are constantly increasing. The control of key quality points of high-voltage disconnectors directly affects the safe operation of the entire power grid. The clamping force and loop resistance of clamp-type high-voltage disconnectors are two important quality parameters.

[0003] At present, the inspection and debugging of the clamping force of the high-voltage disconnector knife switch is generally debugged and repaired before leaving the factory. One maintenance tool can generally only debug one switch, and when measuring different data, it is inconvenient to manually replace different test rods and affect the detection efficiency. Therefore, in most cases, a two-in-one test rod is used for detection and debugging on the debugging and maintenance tool to ensure that the values ​​of the knife switch clamping force and loop resistance are within the qualified range before leaving the factory.

[0004] Although the two-in-one test rod can cope with a variety of test situations, in order to manufacture the two-in-one test rod, some material properties need to be sacrificed, which will have a certain degree of impact on the test data in some cases. For example, when measuring loop resistance, the combination of galvanized iron rod + silver-plated copper bar will affect the resistance measurement and cannot fully simulate the test environment of the entire copper bar. When measuring the clamping force, it is easy for the silver-plated copper bar to be more prone to plastic deformation than the iron bar, resulting in a greater change in the diameter of the clamping position of the test rod than a simple galvanized iron rod, resulting in the inability to fully simulate the clamping rod diameter in the real clamping force test environment. It can be said that this two-in-one test rod is a compromise solution to the current situation of defects in the existing maintenance tooling structure design scheme.

[0005] However, as site space becomes increasingly limited and people are increasingly pursuing automation or semi-automation, this single-type maintenance tooling has also developed defects such as excessive total space occupation, low number of uses during the tooling life cycle, and high maintenance costs. It is precisely because the functions of this maintenance tooling are simple and single that conventional tooling is basically all operated manually, resulting in a decrease in maintenance efficiency. In addition, in most cases, one type of switch needs to be repaired, but occasionally another part of the switches needs to be repaired. If a dedicated single maintenance equipment is equipped for this small or extremely small number of switch repairs, it will undoubtedly increase more maintenance costs and subsequent maintenance costs as well as occupy maintenance site space. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a universal maintenance platform for clamp-type disconnectors, so that the maintenance tool can provide different test rods according to different measurement requirements to simulate real test conditions, and can also be compatible with the measurement of multiple disconnectors at the same time.

[0007] The technical solution adopted by the present invention is: a universal maintenance platform for clamp-type disconnectors, comprising a disconnector fixing platform, a vertical disconnector test system and a horizontal disconnector test system;

[0008] The vertical isolating switch test system comprises a rotating rod, a first clamping force test rod and a first loop resistance test rod, wherein the rotating rod is vertically arranged on the isolating switch fixing platform, and the first clamping force test rod and the first loop resistance test rod are arranged at the upper end of the rotating rod and can rotate with the rotating rod;

[0009] The horizontal isolating switch testing system comprises a rotating base arranged on one side of the isolating switch fixing platform, and the rotating base is provided with a second clamping force testing rod and a second loop resistance testing rod rotating with the rotating base.

[0010] Further optimization, the rotating rod includes a worm, a worm storage support rod, and a rotating turbine. The worm and the worm storage support rod are arranged up and down, and the worm is rotatably and retractably arranged in the worm storage support rod. The rotating turbine is sleeved on the worm. A key slot running through the length of the worm is provided on the rod body of the worm. A key that cooperates with the key slot is provided in the rotating turbine. The rotating turbine is transmission-connected to a rotating motor to drive the rotating turbine to rotate.

[0011] Further optimization, the rotating rod is also provided with a lifting turbine, the lifting turbine is provided with an internal thread matching the worm, and the lifting turbine is transmission-connected with the lifting motor to drive the lifting turbine to rotate.

[0012] For further optimization, a protective box is provided outside the rotating turbine and the lifting turbine.

[0013] Further optimization, the first clamping force test rod and the first loop resistance test rod are fixedly connected to the upper end of the rotating rod through a fixing frame, the fixing frame is radial, including a fixing part in the middle and an even number of connecting rods connected to the fixing part, the fixing part is connected to the top end of the worm gear, and the tail end of each of the connecting rods is hung with the first clamping force test rod or the first loop resistance test rod of each voltage level.

[0014] Further optimization also includes a rotating base lateral movement device, which includes a guide rail connected to one side of the isolating switch fixed platform and a moving platform arranged on the guide rail, and the bottom of the rotating base is fixedly connected to the moving platform.

[0015] Further optimization, the mobile platform is provided with a mobile platform locking mechanism for fixing the mobile platform.

[0016] Further optimized, the isolating switch fixing platform includes a supporting platform and an isolating switch mounting plate, the isolating switch mounting plate is fixedly mounted on the supporting platform through supporting columns, and the isolating switch mounting plate is provided with four-directional oblique waist circular holes.

[0017] Further optimization is provided on the support platform, and an isolating switch operating force providing device is provided, and the isolating switch operating force providing device includes a translation platform and a flange plate, and the translation platform has a stroke in the same direction as the guide rail, and the flange plate is vertically arranged on the translation platform.

[0018] Beneficial effects of the present invention: the universal maintenance platform of the clamp-type isolating switch of the present invention comprises a vertical isolating switch test system and a horizontal isolating switch test system, so that it can be compatible with the tests of various isolating switches. When the isolating switch is tested in the vertical isolating switch test system, the isolating switch is vertically fixedly connected to the isolating switch fixing platform, and the clamp-type knife switch faces the test rod arranged at the upper end of the rotating rod. When the clamping force needs to be tested, the rotating rod rotates so that the first clamping force test rod enters the clamping position of the knife switch to test the clamping force. When the loop resistance test is performed, the rotating rod rotates so that the first loop resistance test rod enters the clamping position of the knife switch to test the loop resistance.

[0019] When the isolating switch is tested in the horizontal isolating switch test system, the isolating switch is fixedly connected horizontally to the isolating switch fixed platform, and the clamp-type knife switch faces the test rod set on the rotating base. When the clamping force needs to be tested, the rotating base rotates so that the second clamping force test rod enters the clamping position of the knife switch to test the clamping force. When the loop resistance test is performed, the rotating base rotates so that the second loop resistance test rod enters the clamping position of the knife switch to test the loop resistance. The present application can be compatible with the testing requirements of multiple isolating switches at the same time, improves the integration of the maintenance device, and reduces the equipment cost of the maintenance tooling. The clamping force test rod and the loop resistance test rod are separately set, which can truly simulate the test situation and ensure the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Figure 1It is a structural schematic diagram of an embodiment of a universal maintenance platform for a clamp-type disconnector of the present invention;

[0022] Figure 2 It is a schematic diagram of the test structure of the isolating switch on the universal maintenance platform of the clamp-type isolating switch;

[0023] Figure 3 It is a structural diagram of the vertical disconnector test system part;

[0024] Figure 4 It is a structural schematic diagram of the rotation control part of the rotating rod;

[0025] Figure 5 It is a schematic diagram of the structure of a rotating turbine;

[0026] Figure 6 It is a schematic diagram of the structure of the lifting turbine;

[0027] Figure 7 It is a structural diagram of the isolating switch fixing platform. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] like Figure 1The structural schematic diagram of the universal maintenance platform of the clamp-type disconnector shown in the figure, the universal maintenance platform of the clamp-type disconnector includes a disconnector fixing platform 100, a vertical disconnector test system 200 and a horizontal disconnector test system 300;

[0033] The vertical isolating switch test system 200 includes a rotating rod 210, a first clamping force test rod 220 and a first loop resistance test rod 230. The rotating rod 210 is vertically arranged on the isolating switch fixing platform 100. The first clamping force test rod 220 and the first loop resistance test rod 230 are arranged at the upper end of the rotating rod 210 and can rotate with the rotating rod 210.

[0034] The horizontal isolating switch testing system 300 includes a rotating base 330 disposed on one side of the isolating switch fixing platform 100 . The rotating base 330 is provided with a second clamping force testing rod 340 and a second loop resistance testing rod 350 that rotate with the rotating base 330 .

[0035] like Figure 2 As shown, this embodiment is described by taking the test of GW16 type isolating switch 800 and GW17 type isolating switch 700 as an example:

[0036] When the GW16 type isolating switch 800 is tested, the GW16 type isolating switch 800 is vertically fixedly connected to the isolating switch fixing platform 100, and the clamp-type knife switch of the GW16 type isolating switch 800 is oriented toward the test rod set at the upper end of the rotating rod 210. When the clamping force needs to be tested, the rotation of the rotating rod 210 causes the first clamping force test rod 220 to enter the clamping position of the knife switch to test the clamping force; when the loop resistance test is performed, the rotating rod 210 rotates, causing the first loop resistance test rod 230 to enter the clamping position of the knife switch to test the loop resistance.

[0037] When the GW17 type isolating switch 700 is tested, the GW17 type isolating switch 700 is fixedly connected to the isolating switch fixing platform 100 in a transverse direction, and the clamp-type knife switch of the GW17 type isolating switch faces the test rod set on the rotating base 330. When the clamping force needs to be tested, the rotating base 330 rotates so that the second clamping force test rod 340 enters the clamping position of the knife switch to test the clamping force; when the loop resistance test is performed, the rotating base 330 rotates so that the second loop resistance test rod 350 enters the clamping position of the knife switch to test the loop resistance.

[0038] This application can be compatible with the testing requirements of multiple clamp-type disconnectors such as GW6, GW16, and GW17, improving the integration of the maintenance device and reducing the equipment cost of the maintenance tooling. The clamping force test rod and the loop resistance test rod are set separately, which can truly simulate the test situation and ensure the accuracy of the test results.

[0039] like Figures 3 to 5 As shown, the rotating rod 210 includes a worm 211, a worm receiving support rod 212, and a rotating turbine 213. The worm 211 and the worm receiving support rod 212 are arranged up and down, and the worm 211 is rotatably and retractably arranged in the worm receiving support rod 212. The rotating turbine 213 is sleeved on the worm 211. A key slot 2111 that runs through the length of the worm is provided on the rod body of the worm 211. A key 2131 that cooperates with the key slot 2111 is provided in the rotating turbine 213. The rotating turbine 213 is connected to the rotating motor 410 to drive the rotating turbine 213 to rotate.

[0040] When the rotating motor 410 is started, the motor transmits the torque to the rotating turbine 213 through a transmission mechanism such as a secondary reduction box. Since the key of the rotating turbine 213 is connected to the keyway of the worm 211, the rotating turbine 213 will rotate together with the worm 211, thereby completing the rotation switching action of the top first clamping force test rod 220 and the first loop resistance test rod 230.

[0041] Since the closing heights of various types of disconnectors are different, the height of the test rod needs to be adaptively adjusted according to the closing heights of switches of different models and voltage levels.

[0042] like Figure 3 , Figure 4 and Figure 6 As shown, a lifting turbine 214 is sleeved on the rotating rod 210 , and an internal thread matching the worm 211 is arranged in the lifting turbine 214 . The lifting turbine 214 is transmission-connected to the lifting motor 420 to drive the lifting turbine 214 to rotate.

[0043] When the lifting motor 420 is started, the motor transmits the torque to the lifting turbine 214 through a transmission device such as a primary reduction gearbox to drive it to rotate. Since the vertical position of the lifting turbine 214 is fixed, its rotation will cause the worm 211 to move in the vertical direction, thereby completing the action of lifting and lowering the top first clamping force test rod 220 and the first loop resistance test rod 230 to adjust the test height.

[0044] It should be noted that when the rotating turbine 213 is rotating, since the lifting turbine 214 is also on the worm 211 at this time, the rotating action of the worm 211 will cause the worm 211 to still have a certain lifting movement, but since the rotating action is controlled at most 180°, the lifting height of the worm 211 at this time is at most half of the screw lead, and the clamp-type disconnector has a reasonable range for the closing position. The lifting height change of the worm 211 at this time is far from enough to make the closing position deviate from the reasonable closing position range, so the height error can be regarded as having no effect.

[0045] In order to protect the rotating turbine 213 and the lifting turbine 214 and the corresponding transmission parts, a protective box 500 is arranged outside the rotating turbine 213 and the lifting turbine 214, and the covers are placed therein for protection.

[0046] As shown in 3, the fixing frame 240 is radial, including a fixing part 241 in the middle and an even number of connecting rods 242 connected to the fixing part 241. The fixing part 241 is connected to the top of the worm 211, and a first clamping force test rod 220 or a first loop resistance test rod 230 of a voltage level is suspended at the tail end of each connecting rod 242.

[0047] The fixing frame 240 can be provided with multiple groups of connecting rods 242, and can be equipped with different types of groups of first clamping force test rods 220 and first loop resistance test rods 230. In this embodiment, there are four connecting rods 242, which are respectively connected with the first clamping force test rods 220 and the first loop resistance test rods 230 for two voltage levels of the GW16 type disconnector and the GW6 type disconnector.

[0048] By setting an even number of connecting rods 242, when testing different voltage level models of GW16 type disconnectors or GW6 type disconnectors, there is no need to replace the first clamping force test rod 220 and the first loop resistance test rod 230. Only the test rod needs to be rotated to the corresponding required test rod, thereby solving the problem of replacing test rods with different clamping diameters for disconnectors of different voltage level models.

[0049] It also includes a rotating base lateral movement device, which includes a guide rail 310 connected to one side of the isolating switch fixed platform 100 and a moving platform 320 arranged on the guide rail 310 . The bottom of the rotating base 330 is fixedly connected to the moving platform 320 .

[0050] The entire mobile platform 320 can slide on the guide rail 310 to adjust the closing test distance of the GW17 type disconnector of different voltage levels.

[0051] Furthermore, a mobile platform locking mechanism 321 is provided on the mobile platform 320 for fixing the mobile platform 320 to prevent the mobile platform 320 from moving on the guide rail 310 during testing. According to the parameters to be measured on site, the test rod can be manually toggled to drive the manual rotating base 330 to rotate, and the test rod can be switched. There is a fixed block under the manual rotating base. When it is rotated to a suitable position, the screw can be tightened to fix the test position of the test rod, thereby ensuring that the test rod will not deviate from the original suitable position due to the closing operation during testing.

[0052] like Figure 7 As shown, the isolating switch fixing platform 100 includes a supporting platform 110 and an isolating switch mounting plate 120 . The isolating switch mounting plate 120 is fixedly mounted on the supporting platform 110 through supporting columns. The isolating switch mounting plate 120 is provided with four-directional oblique waist circular holes 121 .

[0053] The mounting position of the isolating switch mounting plate 120 adopts four-directional oblique waist circular holes 121 to ensure that various isolating switches can be normally installed on the isolating switch mounting plate 120. A notch is opened in the front of the isolating switch mounting plate 120 to prevent the conductive belt from being crushed during installation. The isolating switch mounting plate 120 is connected to the supporting platform 110 through four supporting columns.

[0054] Furthermore, the support platform 110 is provided with an isolating switch operating force providing device, which includes a translation platform 610 and a flange 620 . The translation platform 610 has a travel in the same direction as the guide rail 310 , and the flange 620 is vertically arranged on the translation platform 610 .

[0055] The translation platform 610 is composed of a dovetail guide rail set on the support platform 110. The flange 620 can move with the translation platform 610. The entire operating force providing structure can be moved by sliding the dovetail guide rail to ensure that the flange 620 coincides with the output shaft flange of the disconnector. Then, the upper and lower flanges are locked, and the operating force providing motor is started to start the opening and closing actions.

[0056] Because the closing length of the GW17 type disconnector is very long, and the range of change of the clamp position is not large when the GW17 type disconnectors of various voltage levels are closed, the guide rail 310 does not require such a long stroke adjustment. Therefore, an extended portion of the guide rail 310 is connected to the front of the support platform 110, and the guide rail 310 portion is shortened as much as possible to minimize the processing of over-long workpieces, thereby improving the strength of the guide rail 310 and reducing the difficulty of manufacturing equipment parts.

[0057] The present application solves the shortcomings of conventional inspection and repair equipment, such as being bloated, occupying too much space, low frequency of use of a single device, errors in test data between the second and first test rods, and failure to achieve electrical control.

[0058] In the previous maintenance work, a total of five sets of maintenance equipment were required for the six types of 126KV and 252KV disconnectors of GW6, GW16 and GW17 (it should be noted that the present invention can be applied not only to the maintenance of the above six disconnectors, but also to most clamp-type disconnectors, and only the corresponding disconnector mounting plate 120, guide rail 310 and worm 211 need to be adjusted). Since the closing position of the disconnectors of GW6 and GW16 is in a higher space, it is difficult to manually switch the test rod, so a two-in-one test rod has to be used, which affects the test accuracy. At the same time, due to the low integration, the average cost of fully realizing automatic control is too high, so the operating force providers of these maintenance equipment are all provided by people, and the maintenance level is relatively backward. Since the disconnectors are manually controlled to open and close, it is impossible to detect the mechanism operating force required for the operation of opening and closing. The present invention has a high degree of integration, so automatic control can be used in many places.

[0059] The test of GW6 and GW16 disconnectors adopts the vertical disconnector test system 200, and the operating forces of all switches to be tested are provided and automatically controlled, thereby fundamentally solving the problem of being unable to measure the operating torque and having to use a two-in-one test rod. The present invention is easy to promote and apply, has a low total maintenance cost compared to the previous single maintenance platform, eliminates the influence of most human factors and equipment factors on the test results, has higher maintenance accuracy, and occupies less total space.

[0060] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A universal maintenance platform for clamp-type disconnectors, characterized in that: It comprises an isolating switch fixing platform (100), a vertical isolating switch testing system (200) and a horizontal isolating switch testing system (300); The isolating switch fixing platform (100) comprises a supporting platform (110) and an isolating switch mounting plate (120); the isolating switch mounting plate (120) is fixedly mounted on the supporting platform (110) via supporting columns; and the isolating switch mounting plate (120) is provided with four-directional oblique waist circular holes (121); The vertical isolating switch test system (200) comprises a rotating rod (210), a first clamping force test rod (220) and a first loop resistance test rod (230); the rotating rod (210) is vertically arranged on an isolating switch fixing platform (100); the first clamping force test rod (220) and the first loop resistance test rod (230) are arranged at the upper end of the rotating rod (210) and can rotate along with the rotating rod (210); the rotating rod (210) comprises a worm (211), a worm storage support rod (212), and a rotating turbine (213); The worm (211) and the worm receiving support rod (212) are arranged vertically, and the worm (211) is arranged rotatably and retractably inside the worm receiving support rod (212); the rotating turbine (213) is sleeved on the worm (211); a keyway (2111) penetrating the length of the worm is provided on the shaft of the worm (211); a key (2131) matching the keyway (2111) is provided inside the rotating turbine (213); the rotating turbine (213) is drivingly connected to a rotating motor (410) to drive the rotating turbine (213) to rotate; The upper end of the rotating rod (210) is provided with a first clamping force testing rod (220) and a first loop resistance testing rod (230) which rotate along with the rotating rod (210); The horizontal isolating switch testing system (300) comprises a rotating base (330) arranged on one side of the isolating switch fixing platform (100), the rotating base (330) being provided with a second clamping force testing rod (340) and a second loop resistance testing rod (350) rotating with the rotating base (330); A rotating base transverse movement device, the rotating base transverse movement device comprising a guide rail (310) connected to one side of the disconnector fixed platform (100), and a mobile platform (320) arranged on the guide rail (310), the bottom of the rotating base (330) being fixedly connected to the mobile platform (320), and the mobile platform (320) being provided with a mobile platform locking mechanism (321) for fixing the mobile platform (320).

2. The universal maintenance platform for clamp-type disconnectors according to claim 1 is characterized in that: The rotating rod (210) is also sleeved with a lifting turbine (214), the lifting turbine (214) having an internal thread matching the worm (211), and the lifting turbine (214) is drivingly connected to a lifting motor (420) to drive the lifting turbine (214) to rotate.

3. The universal maintenance platform for the clamp-type disconnector according to claim 2 is characterized in that: A protective box (500) is provided outside the rotating turbine (213) and the lifting turbine (214).

4. The universal maintenance platform for clamp-type disconnectors according to any one of claims 2 to 3, characterized in that: The first clamping force test rod (220) and the first loop resistance test rod (230) are fixedly connected to the upper end of the rotating rod (210) via a fixing frame (240); the fixing frame (240) is radially shaped and comprises a fixing member (241) in the middle and an even number of connecting rods (242) connected to the fixing member (241); the fixing member (241) is connected to the top end of the worm (211); and the first clamping force test rod (220) or the first loop resistance test rod (230) of a voltage level is suspended at the tail end of each connecting rod (242).

5. The universal maintenance platform for clamp-type disconnectors according to claim 1 is characterized in that: The support platform (110) is also provided with an isolating switch operating force providing device, the isolating switch operating force providing device comprising a translation platform (610) and a flange (620), the translation platform (610) having a stroke in the same direction as the guide rail (310), and the flange (620) being vertically arranged on the translation platform (610).

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