CN207671465U - A kind of take-up and pay-off device for large-scale power transformer commissioning test - Google Patents

Abstract

The utility model relates to a wire receiving and releasing device for large-scale power transformer handover test, which comprises a frame body and a high-voltage wire retracting mechanism, a medium-voltage wire retracting mechanism and a low-voltage wire retracting mechanism fixed on the frame with the same structure. A moving device is fixed on the frame, and a driving device is fixed on the moving device. The driving device moves under the driving of the moving device to drive the high-voltage line retracting mechanism, the medium-voltage line retracting mechanism and the low-voltage line retracting mechanism. Action, the large-scale power transformer handover test take-up and release device of the utility model adopts motor and chain drive to realize the take-up and release of high-voltage lines, medium-voltage lines and low-voltage lines, which greatly reduces the labor intensity of operators and improves the take-up and take-off. The work efficiency is high, and the frame body is made of insulating material, which effectively guarantees the safety of the operator.

Description

A wire take-up and release device for large-scale power transformer handover test

technical field

The utility model relates to the technical field of electric power equipment, in particular to a wire take-up and release device used for handover tests of large-scale power transformers.

Background technique

The power transformer handover test refers to the test carried out after the transformer is installed and before it is put into operation. The large-scale power transformer has to go through a complicated transportation and installation process from the routine test in the factory to the operation of the power grid. After this process, the transformer Compared with the factory test, the quality status of the transformer will change in different degrees, and sometimes even destructive changes may occur. In order to verify whether the degree of this change is within the limit that does not affect the safe operation of the transformer, the national standard requires Carry out handover test.

In the handover test of power transformers, it is necessary to perform frequent unwinding and take-up operations on high-voltage lines, medium-voltage lines, and low-voltage lines. There is an urgent need to design a take-up and release device for large-scale power transformer handover tests to reduce the labor intensity of operators and improve work efficiency.

Utility model content

In order to overcome the above-mentioned technical defects, the utility model provides a take-up and release device for large-scale power transformer handover test, which reduces the labor intensity of operators to take and put high-voltage lines, medium-voltage lines and low-voltage lines, and improves work efficiency. To achieve the above object, the utility model adopts the following technical solutions:

A wire retracting and unwinding device for large-scale power transformer handover tests, including a frame body and a high-voltage wire retractable mechanism, a medium-voltage wire retractable mechanism, and a low-voltage wire retractable mechanism fixed on the frame body. A mobile device is fixed on the mobile device, and a driving device is fixed on the mobile device. The driving device moves under the drive of the mobile device to drive the action of the high-voltage line retracting mechanism, the medium-voltage line retracting mechanism and the low-voltage line retracting mechanism. The frame body includes a horizontal support plate and a vertical support plate fixed at one end of the horizontal support plate and perpendicular to the horizontal support plate. Both ends of the vertical support plate are provided with driven shaft support plates perpendicular to it.

Further, universal wheels are provided at the four corners of the lower surface of the horizontal support plate.

Further, the frame body is made of insulating material.

Further, the high-voltage line retractable mechanism, the medium-voltage line retractable mechanism and the low-voltage line retractable mechanism all include a driving sprocket, a driving shaft, a driven sprocket, a chain, bevel gear 1, bevel gear 2, and driven shaft 1 , the driven shaft two and the line roller, the driving shaft is fixed on the vertical support plate, the driving sprocket is connected with the driving shaft, the driving sprocket can rotate around the driving shaft, and the driven shaft one is rotatably connected to the vertical support plate, from The driving sprocket is fixedly connected with the driven shaft one, and a chain is wound between the driving sprocket, the driven sprocket can drive the driven shaft one to rotate, the bevel gear one is fixedly connected with the driven shaft one, and the bevel gear one Located at one end of the driven shaft, the driven sprocket is located inside the bevel gear 1, the rotation of the driven shaft 1 can drive the rotation of the bevel gear 1, the bevel gear 2 meshes with the bevel gear 1, and the bevel gear 2 and the driven shaft The two are rotatably connected, the two ends of the driven shaft two are fixed on the driven shaft support plate, the driven shaft two is covered with a wire roller, and one side end surface of the wire roller is fixedly connected with one side end surface of the bevel gear two , can rotate around the driven shaft 2 under the drive of the bevel gear 2.

Further, the chain is made of plastic material.

Further, the end surface of the driving sprocket has a spline groove.

Further, the moving device includes a first motor, an output shaft of the first motor is connected to a driving pulley, and the driving pulley is connected to a driven pulley through a transmission belt, and a driving device is fixed on the transmission belt.

Further, the drive device includes a bottom plate, the bottom plate is fixed on the conveyor belt, the second motor is fixed on the bottom plate, the output shaft of the second motor is connected to the lead screw, and the lead screw is equipped with a slider, so A third motor is fixed on the slider, and the output shaft of the third motor has a spline matching the spline groove on the end surface of the driving sprocket.

Further, a tensioning device is fixed on the top end of the vertical support plate, and the tensioning device includes a tension bracket fixedly connected with the vertical support plate, and a tension roller is fixed on the tension bracket.

The beneficial effects of the utility model:

The large power transformer handover test take-up and release device of the utility model adopts motor and chain drive to realize the take-up and release of high-voltage lines, medium-voltage lines and low-voltage lines, which greatly reduces the labor intensity of operators and improves the work of take-up and take-off lines. High efficiency, the frame body is made of insulating material, which effectively guarantees the safety of operators.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and not to limit the present application.

Fig. 1 is a schematic front view of the overall structure of the utility model take-up and pay-off device;

Fig. 2 is the view from direction A in Fig. 1 of the utility model;

Fig. 3 is a top view schematic diagram of the utility model high-voltage line retractable mechanism;

Among them: 1. Horizontal support plate, 2. Vertical support plate, 3. Driven shaft support plate, 4. Universal wheel, 5. Drive sprocket, 6. Drive shaft, 7. Driven sprocket, 8. Chain, 9. Bevel gear 1, 10. Bevel gear 2, 11. Driven shaft 1, 12. Driven shaft 2, 13. Wire roller, 14. Connecting rod, 15. Spline groove, 16. First motor, 17. Drive Drive pulley, 18. Driven conveyor pulley, 19. Conveyor belt, 20. Driven pulley bracket, 21. Base plate, 22. Second motor, 23. Coupling, 24. Lead screw, 25. Slider, 26. The third motor, 27. spline, 28. tension bracket, 29. tension roller, 30. bearing with seat.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, during the large-scale power transformer handover test, the take-up and release line is manually operated, which is time-consuming, laborious, inefficient, and has potential safety hazards. In view of the above problems, this application proposes a large-scale power transformer handover test Pay-off device.

In a typical implementation of the present application, as shown in Figures 1-3, a wire retracting and releasing device for large-scale power transformer handover tests includes a frame and a high-voltage wire retracting mechanism fixed on the frame with the same structure , the medium voltage line retractable mechanism and the low voltage line retractable mechanism, the moving device and the driving device are fixed on the fixed frame body, the driving device is fixed on the moving device, moves under the driving of the moving device, and the driving device drives The action of the high-voltage line retractable mechanism, the medium-voltage line retractable mechanism and the low-voltage line retractable mechanism.

The frame body includes a horizontal support plate 1 and a vertical support plate 2 fixed on one end of the horizontal support plate and perpendicular to the horizontal support plate. The two ends of the vertical support plate are provided with a driven shaft support plate 3 perpendicular to it. It is made of insulating material and can withstand a voltage of about 220kv. The four corners of the lower surface of the horizontal support plate are provided with universal wheels 4 to facilitate the movement of the device.

Described high-voltage wire retractable mechanism, medium-voltage wire retractable mechanism and low-voltage wire retractable mechanism all include driving sprocket 5, driving shaft 6, driven sprocket 7, chain 8, bevel gear one 9, bevel gear two 10, from Drive shaft one 11, driven shaft two 12 and line roller 13, described driving shaft 6 is fixed on the vertical support plate, driving sprocket 5 is connected with driving shaft 6 by bearing, and driving sprocket 5 can rotate around driving shaft 6, The driven shaft one 11 is rotatably connected to the vertical support plate 2 by the bearing, the driven sprocket 7 is fixedly connected with the driven shaft one 11 by a key, and the driven sprocket 7 and the driving sprocket 5 are wound with plastic Made chain 8, bevel gear one 9 is connected with driven shaft one 11 through key connection, and bevel gear one 9 is positioned at driven shaft one 11 ends, driven sprocket 7 is positioned at bevel gear one 9 inner side, and described bevel gear one Gear 2 10 meshes with bevel gear 1 9, bevel gear 2 10 is rotatably connected to driven shaft 2 12 through a bearing, the two ends of driven shaft 12 are fixed on driven shaft support plate 3, and the high-voltage wire is retracted Mechanism, medium-voltage line retractable mechanism and low-voltage line retractable mechanism can share the same driven shaft 2 12, and the driven shaft 2 is covered with a wire roller 13, and the middle part of the wire roller has a through hole, through which the through hole is placed on the On the driven shaft 2 12, the diameter of the through hole is slightly larger than the diameter of the driven shaft 2, so that the wire roller 13 can rotate freely around the driven shaft 2 12. A plurality of symmetrically distributed connecting rods 14 on one side of the end face are fixedly connected, and can rotate around the driven shaft two 12 under the drive of the bevel gear two 10 .

The end surface of the driving sprocket 5 has a spline groove 15, and is connected with the driving device described below by a spline connection.

The mobile device includes a first motor 16, the first motor 16 is fixed on the horizontal support plate 1, the output shaft of the first motor 16 is connected with the driving pulley 17, and the driving pulley 17 is connected by a conveyor belt 19 The driven transmission pulley 18 is fixed on the horizontal support plate 1 through the driven pulley bracket 20, and the driving device is fixed on the transmission belt.

Described driving device comprises base plate 21, and described base plate is fixed on the conveyer belt 19, and described base plate is fixed with second motor 22, and the output shaft of described second motor is connected with lead screw 24 one end by coupling 23, and lead screw The other end is connected with a bearing with seat 30, a slide block 25 is assembled on the leading screw, a third motor 26 is fixed on the slide block, and a spline 27 matching the spline groove on the end face of the drive sprocket is provided on the third motor .

A tensioning device is fixed on the top of the vertical supporting plate, and the tensioning device includes a tensioning bracket 28 fixed on the vertical supporting plate, and a tensioning roller 29 is fixed on the tensioning bracket.

When using the take-up and release device of the utility model, the high-voltage wire, medium-voltage wire, and low-voltage wire are respectively wound on the wire rollers of the high-voltage wire retractable mechanism, the medium-voltage wire retractable mechanism, and the low-voltage wire retractable mechanism, and the device is moved to the The required working position is used to illustrate the use method of the utility model device for retracting and unwinding the high-voltage line:

Start the first motor of the moving device, use the conveyor belt to move the second motor so that the axis of its output shaft is aligned with the centerline of the driving sprocket of the wire retracting mechanism, then start the second motor, and use the transmission of the screw slider , so that the second motor moves, the spline on the output shaft is inserted into the spline groove on the end face of the driving sprocket, the second motor is started to rotate forward, the driving sprocket rotates, and then drives the driven sprocket, driven shaft 1, bevel gear The rotation of the first and second bevel gear, the second bevel gear drives the rotation of the wire roller, which can be used to pay off the high-voltage wire, and the second motor can be reversed to take up the high-voltage wire. When the wire is taken up, the position of the entire device needs to be adjusted The position of the high-voltage line makes the position of the high-voltage line and the position of the whole device convenient for the high-voltage line to be tensioned by the tensioning wheel, and the tensioning wheel is close to the high-voltage line to tension the high-voltage line to prevent the high-voltage line from loosening or winding on the line roller.

For the moving device, the one-time rotation angle of the second motor can be set in advance, and then the one-time moving distance of the driving device can be controlled, so that every time the driving device moves, the axis of the output shaft of the third motor can be aligned with the center line of the driving sprocket. align. So that the splines on the output shaft can be accurately assembled into the spline grooves on the drive sprocket.

When retracting and releasing the medium-voltage line or low-voltage line, it is only necessary to control the mobile device so that the third motor is aligned with the driving sprocket of the medium-voltage line retracting mechanism or the low-voltage line retracting mechanism, and repeat the above operations.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (9)

1. A wire retracting device for large-scale power transformer handover test, characterized in that it includes a frame body and a high-voltage wire retracting mechanism, a medium-voltage wire retracting mechanism and a low-voltage wire retracting mechanism fixed on the frame body with the same structure mechanism, the frame body is fixed with a moving device, and a driving device is fixed on the moving device, and the driving device moves under the drive of the moving device to drive the high-voltage line retracting mechanism, the medium-voltage line retracting mechanism and the low-voltage line retracting mechanism. The action of the mechanism, the frame body includes a horizontal support plate and a vertical support plate fixed at one end of the horizontal support plate and perpendicular to the horizontal support plate, and the two ends of the vertical support plate are provided with a driven shaft support plate perpendicular to it. 2. A wire take-up and release device for large-scale power transformer transfer test according to claim 1, characterized in that, universal wheels are provided at the four corners of the lower surface of the horizontal support plate. 3. A wire take-up and release device for large-scale power transformer handover test according to claim 1, characterized in that, the frame body is made of insulating material. 4. A kind of take-up and release device for large-scale power transformer handover test as claimed in claim 1, characterized in that, the high-voltage line retraction mechanism, the medium-voltage line retraction mechanism and the low-voltage line retraction mechanism all include active Sprocket, driving shaft, driven sprocket, chain, bevel gear 1, bevel gear 2, driven shaft 1, driven shaft 2 and wire roller, the driving shaft is fixed on the vertical support plate, and the driving sprocket and driving The rotating shaft is connected, the driving sprocket can rotate around the driving rotating shaft, the driven shaft is rotatably connected to the vertical support plate, the driven sprocket is fixedly connected with the driven shaft, and a chain is wound between the driving sprocket, and the driven The sprocket wheel can drive the driven shaft 1 to rotate, the bevel gear 1 is fixedly connected with the driven shaft 1, and the bevel gear 1 is located at the end of the driven shaft, the driven sprocket is located at the inner side of the bevel gear 1, and the rotation of the driven shaft 1 can drive The rotation of the bevel gear 1, the bevel gear 2 meshes with the bevel gear 1, the bevel gear 2 is rotatably connected with the driven shaft 2, the two ends of the driven shaft 2 are fixed on the driven shaft support plate, and the driven shaft A line roller is sheathed on the shaft two, and one side end surface of the line roller is fixedly connected with one side end surface of the bevel gear two, and can rotate around the driven shaft two under the drive of the bevel gear two. 5. A wire take-up and release device for large-scale power transformer transfer test as claimed in claim 4, characterized in that, the chain is made of plastic material. 6. A wire take-up and pay-off device for large-scale power transformer transfer test according to claim 4, characterized in that, the end face of the driving sprocket has a spline groove. 7. A kind of take-up and release device for large-scale power transformer transfer test as claimed in claim 1, characterized in that, the moving device includes a first motor, and the output shaft of the first motor is connected to the driving pulley , the driving pulley is connected to the driven pulley through a conveyor belt, and a driving device is fixed on the conveyor belt. 8. A kind of take-up and release device for large-scale power transformer handover test as claimed in claim 7, characterized in that, the drive device includes a base plate, the base plate is fixed on the conveyor belt, and the base plate is fixed with the first Two motors, the output shaft of the second motor is connected to the lead screw, the lead screw is equipped with a slide block, the slide block is fixed with a third motor, and the output shaft of the third motor has splines. 9. A kind of take-up and release device for large-scale power transformer transfer test as claimed in claim 1, characterized in that, a tensioning device is fixed on the top of the vertical support plate, and the tensioning device includes a vertical support The board is fixedly connected to the tension bracket, and the tension roller is fixed on the tension bracket.