Transformer on-load switch tester

Abstract

The present invention provides a transformer on-load switch tester, which belongs to the technical field of electric power detection equipment, and includes a bottom support part, a bearing part, a guide part, a reset part, a second drive part, a first drive part and a detection part. The bearing part is arranged at one end of the bottom support part, and is used to provide support for the transformer on-load switch. The first drive part is used to drive the bearing part to rotate at one end of the bottom support part. The guide part is arranged at one side of the bearing part, and a notch is provided on one side of the guide part for the transformer on-load switch wiring pin to enter. The detection part is arranged inside the guide part. After the transformer on-load switch wiring pin enters the notch, the second drive part can drive the detection part to move from the inside of the guide part to the inside of the notch. Compared with the prior art, the embodiment of the present invention can realize the continuity test of the transformer on-load switch and improve the test efficiency of the transformer on-load switch.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power detection equipment, in particular to a transformer on-load switch tester. Background Art

[0002] An on-load switch, also known as an on-load tap changer, is a switching device that provides a constant voltage to the transformer when the load changes.

[0003] At present, after the transformer on-load switch is produced, relevant tests need to be carried out before leaving the factory to ensure that the performance of the transformer on-load switch leaving the factory meets the requirements. In the existing technology, the test of the transformer on-load switch mostly relies on manually connecting the test lead of the detector with the wiring part of the transformer on-load switch, and using the detector to test the relevant data of the transformer on-load switch. This testing method is relatively traditional and has the problem of low testing efficiency, and cannot meet the large-scale testing requirements of the transformer on-load switch. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a transformer on-load switch tester.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A transformer on-load switch tester comprises a bottom support portion, a bearing portion, a guide portion, a reset portion, a second drive portion, a first drive portion and a detection portion.

[0007] The bearing part is arranged at one end of the bottom support part, and is used to provide support for the transformer on-load switch. The first driving part is used to drive the bearing part to rotate at one end of the bottom support part. The guide part is arranged at one side of the bearing part, and a notch is provided on one side of the guide part for the transformer on-load switch wiring pin to enter.

[0008] The detection part is arranged inside the guide part. After the transformer on-load switch connection pin enters the notch, the second driving part can drive the detection part to move from the inside of the guide part to the inside of the notch, so as to drive the detection part to be electrically connected with the transformer on-load switch connection pin, thereby realizing the test of the transformer on-load switch.

[0009] The reset part is arranged inside the guide part. After the transformer on-load switch completes the test, the reset part can drive the detection part to move from the inside of the notch to the inside of the guide part to achieve the reset of the detection part.

[0010] As a further improvement of the present invention: the detection part includes a conductor, a detection instrument and a slide seat,

[0011] The conductor and the slide are both movably arranged inside the guide part, the conductor and the slide are connected by an elastic member, the detection instrument is electrically connected to the conductor, a slide groove is provided on the side wall of the guide part, an elastic baffle is fixedly arranged on the side wall of the slide, the elastic baffle extends from the slide groove to the outside of the guide part and is connected to the second driving part.

[0012] As a further improvement of the present invention: the second driving part includes a rotating wheel, a power part and a plurality of levers,

[0013] The plurality of levers are arranged at intervals on the circumferential side wall of the rotating wheel. The power unit is used to drive the rotating wheel to rotate, so as to drive the plurality of levers to move in a circle. When the plurality of levers move in a circle, they can act on the elastic baffle to drive the elastic baffle to move.

[0014] As a further improvement of the present invention: one end of the reset portion is connected to the slide seat, and the other end is connected to the inner wall of the guide portion.

[0015] As a further improvement of the present invention: the bottom support portion includes a base and a vertical rod fixedly arranged on one side of the base, the bearing portion includes a bearing plate and a column tube fixedly arranged on one side of the bearing plate, one end of the vertical rod away from the base extends into the inside of the column tube and rotates with the column tube, and a transmission gear is fixedly arranged on the outside of the column tube.

[0016] The first driving part includes a motor and a driving gear. The driving gear is connected to the output end of the motor through a rotating shaft, and the driving gear is meshed with the transmission gear.

[0017] As a further improvement of the present invention: the power unit includes a driving bevel gear, a transmission rod and a transmission pulley,

[0018] The driving bevel gear is fixedly arranged at one end of the transmission rod, the driving pulley is fixedly arranged at the other end of the transmission rod, a driving bevel gear is fixedly arranged on one side of the rotating wheel, the driving bevel gear is meshed with the driving bevel gear, a driving pulley is fixedly arranged on the rotating shaft, and the driving pulley is connected to the driving pulley through a transmission belt.

[0019] As a further improvement of the present invention: a first bracket is fixedly provided on the side wall of the vertical pole, a second bracket is fixedly provided on one side of the first bracket, the guide portion is fixedly provided on the second bracket and the side, the rotating wheel is rotatably provided on one side of the second bracket, a positioning seat is also fixedly provided on the side wall of the second bracket, and the transmission rod passes through the positioning seat and rotatably cooperates with the positioning seat.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In an embodiment of the present invention, the transformer on-load switch to be tested is placed at the edge of the load-bearing portion, and the first driving portion is used to drive the load-bearing portion to rotate at one end of the bottom support portion. When the load-bearing portion rotates, it can drive the transformer on-load switch to move in a circular motion. When the transformer on-load switch moves in a circular motion, its wiring pins can rotate into the inside of the notch, and after the wiring pins enter the inside of the notch, the second driving portion drives the detection portion to move, so that the detection portion moves to the inside of the notch and is electrically connected to the wiring pins, so as to test the current transformer on-load switch. After the test is completed, the reset portion drives the detection portion to move to the inside of the guide portion to reset the detection portion until the wiring pins of the next group of transformer on-load switches move into the notch, so as to realize the test of the next group of transformer on-load switches. Compared with the prior art, the continuity test of the transformer on-load switches can be realized, and the test efficiency of the transformer on-load switches can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a transformer on-load switch tester;

[0023] Figure 2 It is a structural schematic diagram of a second driving part in a transformer on-load switch tester;

[0024] Figure 3 for Figure 1 A magnified schematic diagram of the middle A area;

[0025] In the figure: 1-bottom support part, 11-base, 12-vertical pole, 13-first bracket, 14-second bracket, 2-bearing part, 21-bearing plate, 22-transmission gear, 23-column, 3-guide part, 31-reset part, 32-notch, 33-slide, 4-second driving part, 41-shift rod, 42-rotating wheel, 43-transmission bevel gear, 5-power part, 51-driving bevel gear, 52-transmission rod, 53-positioning seat, 54-transmission pulley, 55-transmission belt, 6-first driving part, 61-motor, 62-rotating shaft, 63-driving gear, 7-detection part, 71-conductor, 72-elastic body, 73-elastic baffle, 74-slide. DETAILED DESCRIPTION

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] The 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.

[0028] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0029] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] See also Figure 1 The present embodiment provides a transformer on-load switch tester, comprising a bottom support portion 1, a bearing portion 2, a guide portion 3, a reset portion 31, a second drive portion 4, a first drive portion 6 and a detection portion 7. The bearing portion 2 is arranged at one end of the bottom support portion 1 for providing support for the transformer on-load switch. The first drive portion 6 is used to drive the bearing portion 2 to rotate at one end of the bottom support portion 1. The guide portion 3 is arranged at one side of the bearing portion 2. A notch 33 is provided on one side of the guide portion 3 for the transformer on-load switch wiring pin to enter. The detection portion 7 is arranged inside the guide portion 3. After the transformer on-load switch wiring pin enters the notch 33, the second drive portion 4 can drive the detection portion 7 to move from the inside of the guide portion 3 to the inside of the notch 33, so as to drive the detection portion 7 to be electrically connected to the transformer on-load switch wiring pin, so as to realize the test of the transformer on-load switch. The reset portion 31 is arranged inside the guide portion 3. After the transformer on-load switch completes the test, the reset portion 31 can drive the detection portion 7 to move from the inside of the notch 33 to the inside of the guide portion 3, so as to realize the reset of the detection portion 7.

[0031] By placing the transformer on-load switch to be tested at the edge of the bearing part 2, and using the first driving part 6 to drive the bearing part 2 to rotate at one end of the bottom support part 1, the bearing part 2 can drive the transformer on-load switch to move in a circular motion when it rotates. When the transformer on-load switch moves in a circular motion, its wiring pins can rotate into the notch 33, and after the wiring pins enter the notch 33, the second driving part 4 drives the detection part 7 to move, so that the detection part 7 moves to the notch 33 and is electrically connected to the wiring pins to test the current transformer on-load switch. After the test is completed, the reset part 31 drives the detection part 7 to move to the inside of the guide part 3 to reset the detection part 7 until the wiring pins of the next group of transformer on-load switches move to the notch 33 to achieve the test of the next group of transformer on-load switches. In this way, the continuous test operation of the transformer on-load switches can be achieved, thereby improving the test efficiency of the transformer on-load switches.

[0032] See also Figure 3 In one embodiment, the detection portion 7 includes a conductor 71, a detection instrument (not shown in the figure) and a slide 74. The conductor 71 and the slide 74 are both movably arranged inside the guide portion 3. The conductor 71 and the slide 74 are connected to each other through an elastic member 72. The detection instrument is electrically connected to the conductor 71. A slide groove 33 is provided on the side wall of the guide portion 3. An elastic baffle 73 is fixedly provided on the side wall of the slide 74. The elastic baffle 73 extends from the slide groove 33 to the outside of the guide portion 3 and is connected to the second driving portion 4.

[0033] The elastic baffle 73 is driven by the second driving part 4 to move along the slide groove 33, and then the slide seat 74 is driven to move along the inside of the guide part 3. When the slide seat 74 moves, the conductor 71 can be driven to move through the elastic member 72, so that the conductor 71 is driven to move into the notch 32 and connected to the wiring pin of the transformer on-load switch, thereby realizing electrical conduction between the transformer on-load switch and the conductor 71. The transformer on-load switch can be tested by using a detection instrument. Through the setting of the elastic body 72, when the conductor 71 is connected to the wiring pin, it can provide elastic supporting force to the conductor 71, thereby driving the connection effect of the conductor 71 and the wiring pin.

[0034] In the above embodiment, the conductor 71 is a metal conductive block or a metal conductive rod, and the elastic body 72 is a spring or a spring.

[0035] In another embodiment, the detection part 7 may also include a detection instrument and a wire pin connected to the detection instrument, the wire pin is movably arranged inside the guide part 3, one side of the wire pin is connected to an extrusion seat through a rubber buffer pad, a sliding rod is fixedly arranged on the side wall of the extrusion seat, a guide groove is opened on the side wall of the guide part 3, the sliding rod extends from the guide groove to the outside of the guide part 3 and is connected to the second driving part 4.

[0036] The second driving part 4 drives the slide bar to slide along the guide groove, thereby driving the extrusion seat to move. When the extrusion seat moves, the rubber buffer pad can drive the wire pin to move into the notch 32 and connect with the wiring pin, and the transformer on-load switch is tested using a detection instrument.

[0037] See also Figure 1 and Figure 2 In one embodiment, the second driving unit 4 includes a rotating wheel 42, a power unit 5 and a plurality of levers 41. The plurality of levers 41 are arranged at intervals on the circumferential side wall of the rotating wheel 42. The power unit 5 is used to drive the rotating wheel 42 to rotate, so as to drive the plurality of levers 41 to move in a circular motion. When the plurality of levers 41 move in a circular motion, they can act on the elastic baffle 73 to drive the elastic baffle 73 to move.

[0038] The power unit 5 drives the rotating wheel 42 to rotate, thereby driving a plurality of levers 41 to move in a circular motion. When the levers 41 move in a circular motion, they can act on the elastic baffle 73, thereby driving the elastic baffle 73 to slide along the inside of the slide groove 33. When the elastic baffle 73 slides, it can drive the slide seat 74 to move inside the guide unit 3, so as to drive the conductor 71 to move into the notch 32, thereby realizing electrical connection with the wiring pins.

[0039] In another embodiment, the second driving part 4 may also include a first magnetic sheet fixedly arranged on one side of the elastic baffle 73, a rotating part arranged on one side of the elastic baffle 73, a plurality of second magnetic sheets arranged at intervals on the side wall of the rotating part, and an external motor for driving the rotating part to rotate, and the first magnetic sheet repels the second magnetic sheet.

[0040] The rotating part is driven to rotate by an external motor, which in turn drives the second magnetic sheet to rotate. When the second magnetic sheet rotates to correspond to the first magnetic sheet, the repulsive effect between the second magnetic sheet and the first magnetic sheet is used to drive the elastic baffle 73 to slide along the slide groove 33, thereby driving the slide seat 74 and the conductor 71 to move, so that the conductor 71 moves to the inside of the notch 32 and is electrically connected to the wiring pin.

[0041] In the above embodiments, the rotating member may be a rotating shaft or a rotating drum.

[0042] See also Figure 1 and Figure 3In one embodiment, the reset portion 31 is a spring or an elastic rib, and one end of the reset portion 31 is connected to the slide seat 74, and the other end is connected to the inner wall of the guide portion 3. When a group of levers 41 acts on the elastic baffle 73 to drive the elastic baffle 73 to move, the reset portion 31 is continuously stretched. As the lever 41 continues to rotate, the group of levers 41 actually produces relative movement with the elastic stator 73. When the lever 41 rotates to a certain position, the lever 41 can be disengaged from one end of the elastic baffle 73. At this time, the effect of the lever 41 on the elastic baffle 73 is released. At this time, the slide seat 74, the elastic baffle 73 and the conductor 71 can be driven to move in the opposite direction under the pulling of the reset portion 31, so that the conductor 71 is removed from the inside of the notch 32, so that the next group of wiring pins can enter the inside of the notch 32. The next group of levers 41 is installed to act on the elastic baffle 73 again, so that the conductor 71 can continuously enter the inside of the notch 32, so as to continuously test the transformer on-load switch.

[0043] See also Figure 1 In one embodiment, the bottom support portion 1 includes a base 11 and a vertical rod 12 fixedly arranged on one side of the base 11, the bearing portion 2 includes a bearing plate 21 and a column 23 fixedly arranged on one side of the bearing plate 21, the vertical rod 12 extends from one end of the base 11 to the inside of the column 23 and rotates with the column 23, a transmission gear 22 is fixedly arranged on the outside of the column 23, the first driving portion 6 includes a motor 61 and a driving gear 63, the driving gear 63 is connected to the output end of the motor 61 through a rotating shaft 62, and the driving gear 63 is meshed with the transmission gear 22.

[0044] The motor 61 drives the rotating shaft 62 to rotate, which in turn drives the driving gear 63 to rotate. The meshing action between the driving gear 63 and the transmission gear 22 drives the column 23 to rotate, which in turn drives the supporting plate 21 to rotate, so that the supporting plate 21 can drive the transformer on-load switch to move in a circle, so that the connection pins of different transformer on-load switches can enter the notch 32 one after another, thereby realizing continuous testing of multiple groups of transformer on-load switches.

[0045] In another embodiment, the bottom support portion 1 may further include a base 11 and a bearing seat fixedly arranged on one side of the base 11, the bearing portion 2 may further include a bearing plate 21 and a pillar fixedly arranged on one side of the bearing plate 21, the end of the pillar away from the bearing plate 21 is rotatably matched with the bearing seat, the first driving portion 6 may further include a motor 61 and a driving sprocket connected to the output end of the motor 61, a transmission sprocket is fixedly arranged on the support column, and the driving sprocket is connected to the transmission sprocket by a chain.

[0046] The motor 61 drives the sprocket to rotate, and the chain transmission drives the support column to rotate, thereby driving the carrier plate 21 to rotate, so as to realize the transfer and transportation of the transformer load switch, so as to facilitate the transfer of different transformer load switch connection pins to the gap 32 for testing.

[0047] See also Figure 1 and Figure 2 In one embodiment, the power unit 5 includes a driving bevel gear 51, a transmission rod 52 and a transmission pulley 54. The driving bevel gear 51 is fixedly arranged at one end of the transmission rod 52, and the transmission pulley 54 is fixedly arranged at the other end of the transmission rod 52. A transmission bevel gear 43 is fixedly arranged on one side of the rotating wheel 42, and the driving bevel gear 51 is meshed with the transmission bevel gear 43. A driving pulley is fixedly arranged on the rotating shaft 62, and the driving pulley and the transmission pulley 54 are connected by a transmission belt 55.

[0048] When the rotating shaft 62 rotates, the driving pulley can also be driven to rotate. The transmission action of the transmission belt 55 can be used to drive the transmission rod 52 to rotate. When the transmission rod 52 rotates, the driving bevel gear 51 can be driven to rotate. The meshing action of the driving bevel gear 51 and the transmission bevel gear 43 can be used to drive the rotating wheel 42 to rotate, thereby driving the plurality of levers 41 to move in a circle.

[0049] In another embodiment, in order to realize the rotation of the rotating wheel 42, the power unit 5 can also be directly composed of a driving motor, which is connected to the rotating wheel 42 and drives the rotating wheel 42 to rotate.

[0050] See also Figure 1 and Figure 2 In one embodiment, a first bracket 13 is fixedly provided on the side wall of the vertical pole 12, a second bracket 14 is fixedly provided on one side of the first bracket 13, the guide portion 3 is fixedly provided on the second bracket 14 and the side, the rotating wheel 42 is rotatably provided on one side of the second bracket 14, a positioning seat 53 is also fixedly provided on the side wall of the second bracket 14, and the transmission rod 52 passes through the positioning seat 53 and rotatably cooperates with the positioning seat 53.

[0051] See also Figure 1-3 In one embodiment, the guide portion 3 is an annular structure, and an inner cavity is opened inside the guide portion 3, and one end is connected to the notch 32, and the conductor 71, the slide seat 74 and the reset portion 31 are all arranged inside the inner cavity.

[0052] In the embodiment of the present invention, the transformer on-load switch to be tested is placed at the edge of the load-bearing portion 2, and the first driving portion 6 is used to drive the load-bearing portion 2 to rotate at one end of the bottom support portion 1. When the load-bearing portion 2 rotates, it can drive the transformer on-load switch to move in a circular motion. When the transformer on-load switch moves in a circular motion, its wiring pins can rotate into the notch 33, and after the wiring pins enter the notch 33, the second driving portion 4 drives the detection portion 7 to move, so that the detection portion 7 moves to the notch 33 and is electrically connected to the wiring pins to test the current transformer on-load switch. After the test is completed, the reset portion 31 drives the detection portion 7 to move to the inside of the guide portion 3 to reset the detection portion 7 until the wiring pins of the next group of transformer on-load switches move to the notch 33, so as to realize the test of the next group of transformer on-load switches. Compared with the prior art, the continuity test of the transformer on-load switch can be realized, and the test efficiency of the transformer on-load switch can be improved.

[0053] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A transformer on-load switch tester, characterized in that: It includes a bottom support part, a bearing part, a guide part, a reset part, a second drive part, a first drive part and a detection part. The bearing part is arranged at one end of the bottom support part, and is used to provide support for the transformer on-load switch. The first driving part is used to drive the bearing part to rotate at one end of the bottom support part. The guide part is arranged at one side of the bearing part, and a notch is provided on one side of the guide part for the transformer on-load switch wiring pin to enter. The detection part is arranged inside the guide part. After the transformer on-load switch connection pin enters the notch, the second driving part can drive the detection part to move from the inside of the guide part to the inside of the notch, so as to drive the detection part to be electrically connected with the transformer on-load switch connection pin, thereby realizing the test of the transformer on-load switch. The reset part is arranged inside the guide part. After the transformer on-load switch completes the test, the reset part can drive the detection part to move from the inside of the notch to the inside of the guide part to achieve the reset of the detection part. The detection part includes a conductor, a detection instrument and a slide seat. The conductor and the slide are both movably arranged inside the guide part, the conductor and the slide are connected by an elastic member, the detection instrument is electrically connected to the conductor, a slide groove is provided on the side wall of the guide part, an elastic baffle is fixedly arranged on the side wall of the slide, the elastic baffle extends from the slide groove to the outside of the guide part and is connected to the second driving part, The second driving unit includes a rotating wheel, a power unit and a plurality of levers. The plurality of levers are arranged at intervals on the circumferential side wall of the rotating wheel. The power unit is used to drive the rotating wheel to rotate, so as to drive the plurality of levers to move in a circular motion. When the plurality of levers move in a circular motion, they can act on the elastic baffle to drive the elastic baffle to move. One end of the reset portion is connected to the slide seat, and the other end is connected to the inner wall of the guide portion. The guide part is an annular structure, and an inner cavity is provided inside the guide part, one end of which is connected to the notch, and the conductor, the slide seat and the reset part are all arranged inside the inner cavity. The reset portion is a spring or an elastic rib.

2. A transformer on-load switch tester according to claim 1, characterized in that: The bottom support part includes a base and a vertical rod fixedly arranged on one side of the base, the bearing part includes a bearing plate and a column tube fixedly arranged on one side of the bearing plate, one end of the vertical rod away from the base extends into the inside of the column tube and rotates with the column tube, and a transmission gear is fixedly arranged on the outside of the column tube. The first driving part includes a motor and a driving gear. The driving gear is connected to the output end of the motor through a rotating shaft, and the driving gear is meshed with the transmission gear.

3. A transformer on-load switch tester according to claim 2, characterized in that: The power unit includes a driving bevel gear, a transmission rod and a transmission pulley. The driving bevel gear is fixedly arranged at one end of the transmission rod, the driving pulley is fixedly arranged at the other end of the transmission rod, a driving bevel gear is fixedly arranged on one side of the rotating wheel, the driving bevel gear is meshed with the driving bevel gear, a driving pulley is fixedly arranged on the rotating shaft, and the driving pulley is connected to the driving pulley through a transmission belt.

4. A transformer on-load switch tester according to claim 3, characterized in that: A first bracket is fixedly provided on the side wall of the upright pole, a second bracket is fixedly provided on one side of the first bracket, the guide portion is fixedly provided on the second bracket and the side, the rotating wheel is rotatably provided on one side of the second bracket, a positioning seat is also fixedly provided on the side wall of the second bracket, and the transmission rod passes through the positioning seat and rotatably cooperates with the positioning seat.

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