Tool controllable supporting frame for voltage withstanding experiment of stator bar

Abstract

The utility model discloses a tool controllable support frame for a stator bar voltage withstanding experiment, which belongs to the technical field of the stator bar voltage withstanding experiment and comprises a voltage withstanding tool support frame assembly used for supporting in the stator bar voltage withstanding experiment. The pressure-resistant tool supporting frame assembly comprises a supporting traction trolley, a lifting supporting mechanism installed on the top face of the supporting traction trolley and a lifting supporting table installed at the top end of the lifting supporting mechanism. A U-shaped bearing support plate; the stator bar bearing box is mounted in the U-shaped bearing support plate and can be limited and clamped in the middle position through a pressure-resistant limiting assembly arranged on the inner wall of the U-shaped bearing support plate; when the U-shaped bearing supporting plate does not need to rotate to adjust the angle on the top face of the lifting supporting table, the lifting supporting table and the U-shaped bearing supporting plate are locked together through a lock catch component. According to the utility model, the stator bar bearing box can be accurately clamped, and the stability of the stator bar piece in the testing process is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of the withstand voltage test of stator bars, and particularly relates to a controllable support frame for the withstand voltage test of stator bars as a tooling. Background Technique

[0002] The withstand voltage test of stator bars is an important test in the manufacturing and maintenance processes of generators or motors, mainly used to detect the insulation performance of stator windings (especially stator bars). This test aims to verify whether the stator bars can withstand the expected working voltage under high - voltage conditions without breakdown or other forms of insulation faults. During the manufacturing process of power equipment, the withstand voltage test of stator bars is an important quality inspection link. The following are some typical problems with the existing technologies.

[0003] During the withstand voltage test, the stator bar parts need to be kept fixed. However, in the existing technologies, the fixing methods of stator bar parts are often not firm enough, and they are prone to offset or slip during the experiment. Most traditional fixing methods rely on manual clamps or other simple devices, which cannot provide sufficient clamping force, resulting in the possible movement of stator bar parts when they are under high voltage, affecting the reliability of the experimental results.

[0004] After retrieval, such as the existing Chinese patent publication number: CN212483748U, a mobile generator stator bar test tank, includes a mobile support platform. Multiple insulated stator bar trough boxes are arranged side by side and at intervals on the platform. Ground wires that are in good contact with the grounding point are laid at the bottom of the trough boxes, and tin foil paper of corresponding dimensions is laid in the trough boxes. The workbench is equipped with mobile pulleys, which is not restricted by the working site and is easy to transport to different working sites. It can also be locked and fixed. During the high - voltage test, the stator bars are directly placed in the troughs, and the wiring is simple, improving work efficiency.

[0005] The cited patent literature also has the same problem. The fixing methods of stator bar parts are often not firm enough, and they are prone to offset or slip during the experiment. Most traditional fixing methods rely on manual clamps or other simple devices, which cannot provide sufficient clamping force, resulting in the possible movement of stator bar parts when they are under high voltage, affecting the reliability of the experimental results. Content of the Utility Model

[0006] The purpose of the utility model is to provide a controllable support frame for the withstand voltage test of stator bars as a tooling to solve the problems raised in the background technique.

[0007] To achieve the above - mentioned purpose, the utility model provides the following technical solution: A controllable support frame for the withstand voltage test of stator bars as a tooling, comprising:

[0008] The voltage withstand tooling support frame assembly is used for supporting during the voltage withstand test of the stator bar. The voltage withstand tooling support frame assembly includes a support pulling cart, a lifting support mechanism installed on the top surface of the support pulling cart, and a lifting support platform installed at the top end of the lifting support mechanism;

[0009] The U-shaped bearing support plate is rotatably installed on the top surface of the lifting support platform and can adjust its height through the lifting of the lifting support mechanism;

[0010] The stator bar loading box is installed inside the U-shaped bearing support plate and can be limited and clamped in the middle position by a voltage withstand limiting component arranged on the inner wall of the U-shaped bearing support plate;

[0011] Wherein, when the U-shaped bearing support plate does not need to rotate and adjust the angle on the top surface of the lifting support platform, the lifting support platform and the U-shaped bearing support plate are locked together by a locking component.

[0012] Preferably in this solution, an installation groove is opened at the middle position of the top surface of the lifting support platform, and a rotary motor is installed in the installation groove. The top output shaft of the rotary motor is fixedly connected to the bottom surface of the U-shaped bearing support plate.

[0013] Preferably in this solution, first magnet blocks are symmetrically embedded on both sides of the inner wall of the U-shaped bearing support plate, and the first magnet blocks are magnetically attracted to the magnet sheets on the bottom surface of the stator bar loading box.

[0014] Preferably in this solution, the voltage withstand limiting component includes electric push rods symmetrically installed on both inner walls of the U-shaped bearing support plate and limiting clamping plates fixedly installed at the telescopic free ends of each electric push rod.

[0015] Preferably in this solution, when the two electric push rods drive the connected limiting clamping plates to extend, the two limiting clamping plates move centripetally and clamp on the outer walls on both sides of the stator bar loading box, so that the stator bar loading box is limited to the middle position of the U-shaped bearing support plate.

[0016] Preferably in this solution, two stator bar components to be subjected to the voltage withstand test are symmetrically installed inside the stator bar loading box.

[0017] Preferably in this solution, lock holes are symmetrically opened on both outer walls of the lifting support platform and the U-shaped bearing support plate. The locking component includes a lock clamping plate and two locking fork rods symmetrically installed up and down on the inner wall of the lock clamping plate.

[0018] Preferably in this solution, second magnet blocks are fixed at the free ends of the two locking fork rods. The locking fork rods carry the second magnet blocks and are inserted into the lock holes together, and the second magnet blocks are magnetically attracted to the magnet sheets fixed inside the lock holes.

[0019] Preferably, a handle is fixed to the back surface of the locking and fastening plate, and the locking and fastening plates are symmetrically distributed on the outer walls at the two diagonal corners on both sides of the lifting support platform and the U-shaped bearing support plate.

[0020] Preferably, the lifting support mechanism includes a mounting base installed on the top surface of the support and towing vehicle, multiple scissor lifting cross bars symmetrically and crosswise installed on the top surface of the mounting base, and an oil cylinder installed between the multiple scissor lifting cross bars. The lifting support platform is installed at the top ends of the scissor lifting cross bars, and the free end of the oil cylinder is drivingly connected to the scissor lifting cross bars for telescoping. A control electrical box is arranged on one side of the top surface of the support and towing vehicle, a towing ring is installed on one outer wall of the support and towing vehicle, and walking wheels are installed at the four corners of the bottom surface of the support and towing vehicle.

[0021] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0022] For the controllable support frame for the stator bar withstand voltage test, through the design of the electric push rod and the limit clamping plate, it can accurately clamp the stator bar loading box, ensuring the stability and consistency of the stator bar during the test. The withstand voltage tooling support frame assembly integrates all components together to form a complete system. Compared with the scattered components in the prior art, it reduces the assembly difficulty and improves the overall performance. By integrating the functions of lifting, rotating and locking, a single device can meet various experimental requirements, reducing the time cost of replacing different devices. Through the use of the electric push rod and the rotating motor, many operation processes are automated, reducing the possibility of human error and improving the accuracy of the experimental results.

[0023] The U-shaped bearing support plate is rotatably installed on the lifting support platform and can be adjusted in height through the lifting support mechanism, which means it can adapt to stator bars of different sizes, improving the versatility of the device. The rotating motor is installed in the installation groove of the lifting support platform and is fixedly connected to the bottom surface of the U-shaped bearing support plate through the output shaft, enabling precise angle adjustment and enhancing the diversity of experimental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a structural schematic diagram of the present utility model;

[0026] Figure 2 Schematic diagram of the installation structure of the stator bar component of the present utility model;

[0027] Figure 3 Schematic diagram of the installation structure of the first magnet block of the present utility model;

[0028] Figure 4 Schematic diagram of the structure in the disassembled state after the rotation of the U-shaped bearing support plate of the present utility model;

[0029] Figure 5 Schematic diagram of the structure of the locking clamping plate of the present utility model.

[0030] Explanation of the reference numerals in the drawings:

[0031] In the figure: 1, the total assembly of the withstand voltage tooling support frame; 2, the support and traction vehicle; 3, the control electric box; 4, the traction ring; 5, the lifting support platform; 6, the U-shaped bearing support plate; 7, the stator bar loading box; 8, the stator bar component; 9, the lifting support mechanism; 10, the withstand voltage limit component; 11, the locking clamping plate; 12, the limit clamping plate; 13, the electric push-pull rod; 14, the installation base; 15, the scissors lifting cross bar; 16, the oil cylinder component; 17, the locking hole; 18, the first magnet block; 19, the rotating motor; 20, the installation groove; 21, the handle; 22, the locking fork rod; 23, the second magnet block. Detailed implementation manners

[0032] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0033] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the drawings shown in the present utility model, and are hereby explained together.

[0034] This embodiment provides a controllable support frame for the stator bar withstand voltage test as shown in Figures 1 to 5 the figure, including: the total assembly of the withstand voltage tooling support frame 1, the U-shaped bearing support plate 6, and the stator bar loading box 7.

[0035] In this embodiment, the voltage withstand tooling support frame assembly 1 is used for supporting during the voltage withstand test of the stator bar. The voltage withstand tooling support frame assembly 1 includes a support towing vehicle 2, a lifting support mechanism 9 installed on the top surface of the support towing vehicle 2, and a lifting support platform 5 installed at the top end of the lifting support mechanism 9; the voltage withstand tooling support frame assembly 1 serves as the main frame of the entire support system, providing a solid basic structure, integrating all other components, ensuring the coordinated operation between components, and guaranteeing the stability and reliability of the entire device. The support towing vehicle 2 serves as the moving platform of the support frame, facilitating the transportation and positioning of the entire equipment, enabling the entire device to move flexibly to the designated working area, improving work efficiency, and reducing the labor intensity of manual handling. The lifting support platform 5 serves as the direct support platform for the stator bar loading box 7, and adjusts the height through the lifting support mechanism 9 to ensure that the stator bar parts 8 can conduct voltage withstand tests at different heights. The lifting support mechanism 9 realizes the vertical movement of the lifting support platform 5, and through the coordinated work of the oil cylinder part 16 and the scissor lifting cross bar 15, it lifts and lowers smoothly and precisely adjusts the height.

[0036] In this embodiment, the U-shaped bearing support plate 6 is rotatably installed on the top surface of the lifting support platform 5 and can adjust the height through the lifting of the lifting support mechanism 9; the U-shaped bearing support plate 6 bears the stator bar loading box 7 and can adjust the angle, allowing the angle of the bearing plate to be adjusted within a certain range, providing more flexible test condition settings.

[0037] In this embodiment, the stator bar loading box 7 is installed inside the U-shaped bearing support plate 6 and can be limited and clamped in the middle position by the voltage withstand limiting component 10 provided on the inner wall of the U-shaped bearing support plate 6; the stator bar loading box 7 loads the stator bar parts 8, ensuring the stability of the stator bar parts 8 during the test, protecting the stator bar parts 8, and avoiding accidental damage during the test.

[0038] In this embodiment, when the U-shaped bearing support plate 6 does not need to rotate and adjust the angle on the top surface of the lifting support platform 5, the lifting support platform 5 and the U-shaped bearing support plate 6 are locked together through a locking component.

[0039] In this embodiment, an installation groove 20 is formed at the middle position of the top surface of the lifting support platform 5, and a rotating motor 19 is installed in the installation groove 20. The top output shaft of the rotating motor 19 is fixedly connected to the bottom surface of the U-shaped bearing support plate 6. The rotating motor 19 drives the U-shaped bearing support plate 6 to rotate, and is connected to the U-shaped bearing support plate 6 through the output shaft in the installation groove 20, realizing precise angle adjustment.

[0040] In this embodiment, first magnet blocks 18 are symmetrically embedded on both sides of the inner wall of the U-shaped bearing support plate 6, and the first magnet blocks 18 are magnetically attracted to the magnet sheet on the bottom surface of the stator wire rod receiving box 7. The first magnet block 18 is used in conjunction with the magnet sheet on the bottom surface of the stator wire rod receiving box 7 to enhance the adsorption force and further fix the stator wire rod receiving box 7.

[0041] In this embodiment, the pressure-resistant limit assembly 10 includes electric push-pull rods 13 symmetrically mounted on the inner walls of both sides of the U-shaped load-bearing support plate 6 and limit clamps 12 fixedly mounted on the telescopic free ends of each electric push-pull rod 13. When the two electric push-pull rods 13 drive the connected limit clamps 12 to extend, the two limit clamps 12 move centripetally and clamp on the outer walls of both sides of the stator wire rod receiving box 7, so that the stator wire rod receiving box 7 is limited to the middle position of the U-shaped load-bearing support plate 6. The pressure-resistant limit assembly 10 limits the position of the stator wire rod receiving box 7 in the U-shaped load-bearing support plate 6, and clamps the stator wire rod receiving box 7 by the electric push-pull rods 13 and the limit clamps 12, thereby ensuring the stability of the receiving box during the test.

[0042] In this embodiment, two stator wire rod pieces 8 to be subjected to the withstand voltage test are symmetrically installed inside the stator wire rod receiving box 7 .

[0043] In this embodiment, locking holes 17 are symmetrically opened on the outer walls of both sides of the lifting support platform 5 and the U-shaped load-bearing support plate 6, and the locking components include a locking buckle plate 11 and two locking fork rods 22 symmetrically installed on the inner wall of the locking buckle plate 11.

[0044] In this embodiment, the free ends of the two locking fork rods 22 are fixed with second magnet blocks 23, and the locking fork rods 22 carry the second magnet blocks 23 and are inserted into the lock hole 17 together, and the second magnet blocks 23 are magnetically attracted to the magnet sheet fixed inside the lock hole 17, and the back of the locking buckle plate 11 is fixed with a handle 21, and the locking buckle plates 11 are symmetrically distributed on the outer walls of the two diagonal sides of the lifting support platform 5 and the U-shaped load-bearing support plate 6. The locking buckle plate 11 is used to lock the relative position between the U-shaped load-bearing support plate 6 and the lifting support platform 5, and is used in conjunction with the locking fork rod 22 and the lock hole 17 to enhance the safety of the system and prevent unexpected movement. The limit clamp 12 is used in conjunction with the electric push-pull rod 13 to fix the stator wire rod receiving box 7, and the clamping is achieved through the telescopic action, ensuring the stability of the stator wire rod receiving box 7 during the test process. The second magnet block 23 is used in conjunction with the magnet sheet inside the lock hole 17 to enhance the locking effect and ensure the reliability of the locking.

[0045] In this embodiment, the lifting and supporting mechanism 9 includes a mounting base 14 installed on the top surface of the supporting and pulling vehicle 2, multiple scissor lifting cross rods 15 symmetrically and crossly installed on the top surface of the mounting base 14, and an oil cylinder member 16 installed between the multiple scissor lifting cross rods 15. The lifting and supporting platform 5 is installed at the top ends of the scissor lifting cross rods 15. The free end of the oil cylinder member 16 is drivingly connected to the scissor lifting cross rods 15 for telescoping. On one side of the top surface of the supporting and pulling vehicle 2, there is a control electric box 3. The control electric box 3 centrally controls the system, which is used to control the various functions of the support frame, provide a user interface, facilitate the operator to control functions such as lifting and rotation, simplifies the operation process, and improves the safety and convenience of the operation. On one outer wall of the supporting and pulling vehicle 2, there is a pulling ring 4. The pulling ring 4 is used for manually assisting in moving the supporting and pulling vehicle 2, providing a force point for manual traction, increasing the mobility of the equipment, and facilitating movement in narrow spaces. At the four corners of the bottom surface of the supporting and pulling vehicle 2, walking wheels are all installed.

[0046] Working principle:

[0047] For the controllable support frame for the stator bar withstand voltage test tooling, place the supporting and pulling vehicle 2 at the required position, install the mounting base 14, and successively install the scissor lifting cross rods 15 and the oil cylinder member 16 thereon. Finally, install the lifting and supporting platform 5 at the top ends of the scissor lifting cross rods 15. Install the U-shaped bearing support plate 6 on the lifting and supporting platform 5 and fix it in the installation groove 20 through the rotating motor 19. Place the stator bar loading box 7 into the U-shaped bearing support plate 6 and ensure that it can be accurately limited to the central position through the withstand voltage limiting component 10.

[0048] Open the withstand voltage limiting component 10, place the stator bar part 8 in the stator bar loading box 7, use the electric push rod 13 to drive the limiting clamping plate 12 to move centripetally, clamp the stator bar loading box 7, and ensure that the stator bar part 8 does not move during the test. The first magnet block 18 magnetically attracts the magnet sheet on the bottom surface of the stator bar loading box 7 to further fix the stator bar loading box 7.

[0049] If it is necessary to adjust the angle of the U-shaped bearing support plate 6, the rotating motor 19 can be started to drive the U-shaped bearing support plate 6 to rotate to the required test angle through its output shaft. When the U-shaped bearing support plate 6 reaches the required angle, insert the locking fork rod 22 on the lock catch plate 11 into the lock hole 17 of the lifting and supporting platform 5, and use the second magnet block 23 to magnetically attract the magnet sheet in the lock hole 17 to fix the position. Start the oil cylinder member 16 through the control electric box 3 to make the scissor lifting cross rods 15 drive the lifting and supporting platform 5 to rise or fall, so as to adjust the height of the stator bar part 8 until it reaches the height position suitable for the test.

[0050] After everything is ready, start the relevant withstand voltage test equipment through the control electric box 3 and select appropriate equipment according to the actual application scenario. Apply a predetermined voltage or pressure to the stator bar part 8, observe and record the test data to ensure that the performance of the stator bar part 8 during the withstand voltage test meets the expectations.

[0051] After the test is completed, first lower the height of the U-shaped bearing support plate 6 until it is close to the ground or the workbench surface, release the clamping state of the withstand voltage limit component 10, carefully take out the stator bar part 8 in the stator bar loading box 7, clean the stator bar loading box 7 and the U-shaped bearing support plate 6 to ensure that there is no residue, and reset the equipment to the initial state for the next use.

[0052] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A controllable support frame for the withstand voltage test of a stator bar, characterized in that, Including: A voltage-resistant tooling support frame assembly (1) for use in supporting during the voltage withstand test of stator bars. The voltage-resistant tooling support frame assembly (1) includes a support towing vehicle (2), a lifting support mechanism (9) installed on the top surface of the support towing vehicle (2), and a lifting support platform (5) installed at the top end of the lifting support mechanism (9); A U-shaped load-bearing support plate (6) rotatably installed on the top surface of the lifting support platform (5) and capable of adjusting its height through the lifting of the lifting support mechanism (9); A stator bar loading box (7) installed inside the U-shaped load-bearing support plate (6) and capable of being limited and clamped at the middle position by a voltage-resistant limiting component (10) provided on the inner wall of the U-shaped load-bearing support plate (6); Wherein, when the U-shaped load-bearing support plate (6) does not need to rotate and adjust the angle on the top surface of the lifting support platform (5), the lifting support platform (5) and the U-shaped load-bearing support plate (6) are locked together by a locking component.

2. The controllable support frame for the withstand voltage test of the stator bar according to claim 1, wherein: An installation groove (20) is provided at the middle position of the top surface of the lifting support platform (5), and a rotating motor (19) is installed in the installation groove (20). The top output shaft of the rotating motor (19) is fixedly connected to the bottom surface of the U-shaped load-bearing support plate (6).

3. The controllable support frame for the withstand voltage test of the stator bar according to claim 2, wherein: On both sides of the inner wall of the U-shaped load-bearing support plate (6), first magnet blocks (18) are symmetrically embedded, and the first magnet blocks (18) magnetically attract with the magnet sheets on the bottom surface of the stator bar loading box (7).

4. The controllable support frame for the withstand voltage test of the stator bar according to claim 3, characterized in that: The voltage-resistant limiting component (10) includes electric push rods (13) symmetrically installed on both inner walls of the U-shaped load-bearing support plate (6) and limiting clamping plates (12) fixedly installed at the telescopic free ends of each electric push rod (13).

5. The controllable support frame for the withstand voltage test of the stator bar according to claim 4, characterized in that: When the two electric push rods (13) drive the connected limiting clamping plates (12) to extend, the two limiting clamping plates (12) move centripetally and clamp on the outer walls on both sides of the stator bar loading box (7), so that the stator bar loading box (7) is limited to the middle position of the U-shaped load-bearing support plate (6).

6. The controllable support frame for the voltage withstand test of a stator bar according to claim 5, characterized in that: Inside the stator bar loading box (7), two stator bar components (8) to be subjected to the voltage withstand test operation are symmetrically installed.

7. The controllable support frame for the withstand voltage test of the stator bar according to claim 6, characterized in that: Locking holes (17) are symmetrically provided on the outer walls on both sides of the lifting support platform (5) and the U-shaped load-bearing support plate (6). The locking component includes a locking clamping plate (11) and two locking fork rods (22) symmetrically installed on the inner wall of the locking clamping plate (11) up and down.

8. The controllable support frame for the withstand voltage test of the stator bar according to claim 7, wherein: At the free ends of the two locking fork rods (22), second magnet blocks (23) are fixed. The locking fork rods (22) carry the second magnet blocks (23) and are inserted into the locking holes (17) together, and the second magnet blocks (23) magnetically attract with the magnet sheets fixed inside the locking holes (17).

9. The controllable support frame for the voltage withstand test of the stator bar according to claim 8, characterized in that: A handle (21) is fixed on the back surface of the locking clamping plate (11), and the locking clamping plates (11) are symmetrically distributed on the outer walls at the diagonal corners on both sides of the lifting support platform (5) and the U-shaped load-bearing support plate (6).

10. The controllable support frame for the voltage withstand test of the stator bar according to claim 9, characterized in that: The lifting and supporting mechanism (9) includes a mounting base (14) installed on the top surface of the supporting and pulling vehicle (2), multiple scissor lifting cross bars (15) symmetrically and crosswise installed on the top surface of the mounting base (14), and an oil cylinder member (16) installed between the multiple scissor lifting cross bars (15). The lifting and supporting platform (5) is installed at the top ends of the scissor lifting cross bars (15).

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