Maintenance Equipment and Maintenance Method for Power Systems

Abstract

A maintenance device and a maintenance method for a power system, which can stabilize distribution boxes of different specifications, and at the same time make the distribution boxes more reliable, ensuring the reliability of the distribution boxes. The introduction of the shock-absorbing part can not only achieve the shock-absorbing effect on the distribution box, but also achieve the stabilizing effect. The locking part is used to stabilize a pair of adjacent distribution boxes, preventing the problem of damage to the installation function of the distribution box caused by installing distribution boxes of different specifications at the same time, and ensuring the reliability of the distribution box. The assembly frame includes a mounting piece and side pieces arranged on both sides of the mounting piece. The introduction of the assembly frame is beneficial to stabilizing the distribution box, is also suitable for being arranged at the locking part, ensuring the reliability of the distribution box, and is also beneficial to the movement of the distribution box, facilitating subsequent replacement and maintenance.

Description

Technical Field

[0001] The present invention belongs to the technical field of the maintenance of power systems, and particularly relates to a maintenance device and a maintenance method for a power system. Background Art

[0002] Common devices in power systems include power distribution boxes, which are a general term for motor control centers. A power distribution box assembles switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or on a panel according to electrical wiring requirements to form a low-voltage power distribution device. Currently, in power systems, power distribution boxes are arranged in the order of their numbers and placed in a rectangular container. The placement of power distribution boxes is relatively neat. However, due to the power functions involved in the structure of the power distribution box, it is not advisable to change the orientation of the power distribution box to prevent damage to the functions of the power distribution box or even short-circuit damage. Even though the current placement method of power distribution boxes is not difficult to operate and the structure is compact and not cumbersome, there are continuous various control actions in the power system, especially many maintenance actions; when performing control action tasks or external vibrations such as those caused by the operation of a motor, it poses serious potential hazards to the placement and fault-free operation of the power distribution boxes in the rectangular container, which is not conducive to the fault-free operation of the power distribution boxes for long-term use; therefore, a reliable maintenance device for power distribution boxes that is not cumbersome and not difficult to operate is required; the current reliable maintenance device for power distribution boxes can only be fixed for power distribution boxes of one specification and cannot be extended for use. Summary of the Invention

[0003] To solve the deficiencies in the prior art, the purpose of the present invention is to provide a maintenance device and a maintenance method for a power system, which can fix power distribution boxes of different specifications, and at the same time make the power distribution boxes more reliable, ensuring the reliability of the power distribution boxes. The introduction of a shock-absorbing part can not only achieve the effect of shock absorption for the power distribution box but also achieve a stabilizing effect. The locking part is used to stabilize a pair of adjacent power distribution boxes, preventing the problem of damage to the installation function of the power distribution boxes caused by installing power distribution boxes of different specifications simultaneously, and ensuring the reliability of the power distribution boxes.

[0004] The present invention adopts the following technical solutions.

[0005] A maintenance device for a power system includes:

[0006] Rectangular table, on which there is an assembly frame and a vibration damping part. There is a moving bar on the assembly frame, and a locking part is arranged on the moving bar. The vibration damping part and the locking part are arranged alternately. There is an erection table at the lower part of the rectangular table. The vibration damping part includes clamping pieces, rotating bars, rotating rollers, a bearing platform, a hoop 1, a disc spring 1, a transition bar and a stabilizing bar. The stabilizing bar is arranged on the lower wall in the cavity of the rectangular table. The hoop 1 is clamped on the stabilizing bar, and the upper part of the hoop 1 penetrates through the rectangular table and extends above the rectangular table. The disc spring 1 is clamped under the hoop 1 on the stabilizing bar. The bearing platform is arranged on the upper part of the hoop 1. One end of the transition bar is arranged on the hoop 1, and the other end of the transition bar is arranged on one end of the rotating bar. The other end of the rotating bar is arranged on the clamping piece. The rotating bar is arranged on the erection table through the rotating roller, and the rotating roller is arranged at the middle of the rotating bar.

[0007] Preferably, the assembly frame includes an erection piece and side pieces arranged on both sides of the erection piece.

[0008] Preferably, the number of the clamping pieces, rotating bars, rotating rollers and transition bars is one pair each. A pair of clamping pieces, rotating bars, rotating rollers and transition bars are arranged mirror-symmetrically on both sides of the bearing platform. The clamping pieces are used to clamp the distribution box firmly. The rotating bars are used to pull the clamping pieces to rotate on the rotating rollers. The transition bars are used to connect the rotating bars and the hoop 1.

[0009] Preferably, there is also a disc spring 4 on the clamping pieces. There are several disc springs 4, and several disc springs 4 are arranged equidistantly on the clamping pieces.

[0010] Preferably, the locking part includes a locking platform, a connecting bar 1 and a displacement piece. The displacement piece is arranged on the moving bar. The locking platform is fixedly connected to the displacement piece through the connecting bar 1. There is a lead screw on the locking platform. The screw threads on both sides in the length direction of the lead screw turn in opposite directions. A pair of hoop 2s are arranged mirror-symmetrically on the lead screw. A pair of connecting bars 2 are arranged mirror-symmetrically on the hoop 2s. One end of the connecting bar 2 is rotatably connected to the hoop 2. A supporting piece is arranged on the other end of each connecting bar 2. There is a disc spring 2 on the supporting piece. One end of the disc spring 2 is arranged on the supporting piece, and the other end of the disc spring 2 is fixedly connected to a fitting piece.

[0011] Preferably, the number of the lead screws is one pair, and the pair of lead screws are arranged vertically on the locking platform.

[0012] Preferably, the locking platform includes a horizontal supporting piece and vertical supporting bars arranged at both ends of the horizontal supporting piece. Inside the vertical supporting bars, there are a sprocket 1, a stabilizing roller, a sprocket 2 and a sprocket 3. The sprocket 1 and the sprocket 3 are respectively arranged on a pair of lead screws. The stabilizing roller is arranged on the vertical supporting bar. In addition, one end of the stabilizing roller penetrates through the vertical supporting bar and extends to the outer wall of the vertical supporting bar. In addition, there is a lead screw with a hexagonal prism-shaped head at one end of the stabilizing roller. The sprocket 2 is arranged on the stabilizing roller and meshes with the sprocket 1 and the sprocket 3 respectively.

[0013] Preferably, a clamping device is further provided on the assembly frame. The clamping device includes a third connecting strip, a fourth connecting strip, a transition strip, a roller, a stop strip and a third disc spring. The rollers are mirror-symmetrically arranged at both ends of the stop strip. The transition strip is arranged on the rollers. One end of the third connecting strip is arranged on the transition strip. The fourth connecting strip is in a right-angled folding ruler shape. A groove is provided on the upper part of the fourth connecting strip. The lower part of the fourth connecting strip is rotatably connected to the side piece of the assembly frame. The other end of the third connecting strip is arranged in the groove. The third disc spring is arranged in the groove. One end of the third disc spring is arranged at the lower part of the third connecting strip. The other end of the third disc spring is arranged on the lower wall of the groove.

[0014] Preferably, the rectangular table has a structure with a cavity inside, and a vertical support strip has a structure with a cavity inside.

[0015] A maintenance method for a maintenance device for a power system includes:

[0016] When installing the distribution box, place the distribution box on the bearing platform on the vibration damping part. Under the drag of the self-weight of the distribution box, the bearing platform is pushed downward. The downward displacement of the bearing platform drives the hoop one to move downward, compresses the first disc spring, and drives one end of the transition strip to move downward. Thus, one end of the rotating strip is pushed outward, and the other end of the rotating strip drives the clamping piece to move toward the middle. Then, rotate the stabilizing roller through a wrench to drive the second sprocket to rotate. The rotation of the second sprocket drives the first sprocket and the third sprocket to rotate. The rotation of the first sprocket and the third sprocket drives a pair of lead screws to rotate. The rotation of a pair of lead screws drives the hoop two on the lead screws to move synchronously toward the middle, driving one end of the second connecting strip to move toward the middle. Thus, the support piece is pushed outward. The outward movement of the support piece drives the fitting piece to move outward, so that the fitting piece is in contact with the distribution box. Then, rotate the stabilizing roller until the second disc spring is compressed. Then, rotate the fourth connecting strip to drive the third connecting strip and the stop strip to rotate. Place the stop strip on one side of the distribution box as required. When disassembling the distribution box, rotate the stabilizing roller reversely, driving the second sprocket to rotate reversely. Thus, the first sprocket and the third sprocket are driven to rotate reversely, driving a pair of lead screws to rotate, driving the hoop two to move outward, driving one end of the second connecting strip to move outward, driving the support piece to move inward, and the support piece drives the fitting piece to move inward.

[0017] The beneficial effects of the present invention are as follows. Compared with the prior art, the maintenance device for the power system of the present invention can firmly hold distribution boxes of different specifications, and at the same time, it can make the distribution box more reliable, ensuring the reliability of the distribution box. The introduction of the shock-absorbing part can not only achieve the effect of shock absorption for the distribution box, but also achieve the effect of firmness. The locking part is used to firmly hold a pair of adjacent distribution boxes, preventing the problem of impaired installation function of the distribution box caused by installing distribution boxes of different specifications at the same time, and ensuring the reliability of the distribution box. The assembly frame includes a mounting piece and side pieces provided on both sides of the mounting piece. The introduction of the assembly frame is beneficial to firmly hold the distribution box, and is also suitable for being arranged in the locking part, ensuring the reliability of the distribution box, and also facilitating the movement of the distribution box, which is beneficial for subsequent replacement and maintenance. The number of clamping pieces, rotating bars, rotating rollers and transition bars is a pair. A pair of clamping pieces, rotating bars, rotating rollers and transition bars are symmetrically arranged on both sides of the bearing table. The clamping pieces are used to firmly hold the distribution box, ensuring the reliability of the distribution box. The rotating bars are used to drive the clamping pieces to rotate on the rotating rollers, ensuring the normal operation of the clamping pieces. The transition bars are used to connect the rotating bars and the first hoop, ensuring the normal clamping function of the clamping pieces. The locking part is used to firmly hold a pair of adjacent distribution boxes, ensuring the trouble-free and reliable operation of the distribution box placed on the assembly frame, preventing the problem of the distribution box swinging, which is not conducive to the start and stop operation of components such as switches in the distribution box, and substantially improving the operating performance of the components in the distribution box, ensuring the reliability of the distribution box. The number of lead screws is a pair. A pair of lead screws are vertically arranged on the locking platform. The introduction of a pair of lead screws ensures the trouble-free operation when the supporting piece and the fitting piece move, and ensures the clamping performance. The introduction of the first sprocket, stabilizing roller, second sprocket and third sprocket is beneficial to synchronously control the rotation of a pair of lead screws, and substantially improves the operating efficiency of the locking part. The clamping device can firmly hold and stabilize the upper part of the distribution box, ensuring the reliability of the distribution box. And with the mutual cooperation of the third connecting bar, the fourth connecting bar and the third disc spring, the device can be applied to distribution boxes of different specifications, and substantially ensures the trouble-free operation of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structure diagram of the maintenance device for the power system described in the present invention;

[0019] Figure 2 is the structure diagram of the locking part described in the present invention;

[0020] Figure 3 is the engagement schematic diagram of the first sprocket, the second sprocket and the third sprocket described in the present invention;

[0021] Figure 4 is the structure diagram of the mounting platform described in the present invention;

[0022] Figure 5 is the schematic diagram of the locking part described in the present invention;

[0023] Figure 6It is the structural diagram of the locking device described in the present invention. Detailed implementation mode

[0024] The meanings of some technical terms of the present invention are as follows:

[0025] The following further describes the present application with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present application.

[0026] A maintenance device for a power system described in the present invention, such as Figure 1 shown, includes:

[0027] A rectangular platform 2, on which an assembly frame 3 and a shock-absorbing part 5 are provided. An action bar 6 is provided on the assembly frame 3, and a locking part 4 is provided on the action bar 6. The shock-absorbing part 5 and the locking part 4 are arranged alternately. A mounting platform 8 is provided at the lower part of the rectangular platform 2. The shock-absorbing part 5 includes clamping pieces 512, a rotating bar 514, a rotating roller 513, a bearing platform 519, a first hoop 516, a first disc spring 518, a transition bar 515 and a stabilizing bar 517. The stabilizing bar 517 is provided on the lower wall of the cavity of the rectangular platform 2. The first hoop 516 is hoop-connected to the stabilizing bar 517, and the upper part of the first hoop 516 penetrates through the rectangular platform 2 and extends above the rectangular platform 2. The first disc spring 518 is hoop-connected to the stabilizing bar 517 below the first hoop 516. The bearing platform 519 is provided on the upper part of the first hoop 516. One end of the transition bar 515 is provided on the first hoop 516, and the other end of the transition bar 515 is provided on one end of the rotating bar 514. The other end of the rotating bar 514 is provided on the clamping piece 512. The rotating bar 514 is arranged on the mounting platform 8 as shown in Figure 4 shown, and the rotating roller 513 is arranged at the middle of the rotating bar 514.

[0028] In a preferred but non-limiting embodiment of the present invention, the assembly frame 3 includes a mounting piece and side pieces provided on both sides of the mounting piece. The introduction of the assembly frame 3 is conducive to stabilizing the distribution box, is also suitable for being provided with the locking part 4, ensures the reliability of the distribution box, and is also conducive to moving the distribution box, which is beneficial for subsequent replacement and maintenance.

[0029] In a preferred but non-limiting embodiment of the present invention, the number of the clamping pieces 512, the rotating bar 514, the rotating roller 513 and the transition bar 515 is one pair. A pair of clamping pieces 512, rotating bar 514, rotating roller 513 and transition bar 515 are arranged symmetrically on both sides of the bearing platform 519. The clamping pieces 512 are used to clamp the distribution box to ensure the reliability of the distribution box. The rotating bar 514 is used to drive the clamping pieces 512 to rotate on the rotating roller 513 to ensure the normal operation of the clamping pieces 512. The transition bar 515 is used to connect the rotating bar 514 and the first hoop 516 to ensure the normal clamping function of the clamping pieces 512.

[0030] In a preferred but non-limiting embodiment of the present invention, a fourth disc spring 520 is further provided on the clamping piece 512. A plurality of fourth disc springs 520 are provided, and the plurality of fourth disc springs 520 are arranged at equal intervals on the clamping piece. The fourth disc spring 520 is used to apply an initial clamping force to firmly clamp the distribution box, and can also ensure that the distribution box is continuously in a firmly clamped state. Also, because the disc spring has elasticity, some anti-vibration functions can be achieved.

[0031] In a preferred but non-limiting embodiment of the present invention, as Figure 2 and Figure 5 shown, the locking part 4 includes a locking platform 412, a first connecting bar 414 and a displacement piece 413. The displacement piece 413 is arranged on the moving bar 6. The locking platform 412 is fixedly connected to the displacement piece 413 via the first connecting bar 414. A lead screw 419 is provided on the locking platform 412. The thread directions on both sides of the lead screw 419 in the length direction are opposite. A pair of second hoop rings 420 are mirror-symmetrically arranged on the lead screw 419. A pair of second connecting bars 418 are mirror-symmetrically arranged on the second hoop rings 420. One end of each second connecting bar 418 is rotatably connected to the second hoop ring 420. A supporting piece 416 is provided at the other end of each second connecting bar 418. A second disc spring 417 is provided on the supporting piece 416. One end of the second disc spring 417 is arranged on the supporting piece 416, and the other end of the second disc spring 417 is fixedly connected to the fitting piece 415. The locking part 4 is used to firmly clamp a pair of adjacent distribution boxes, ensure the trouble-free and reliable operation of the distribution box placed on the assembly frame 3, prevent the problem of the distribution box from swinging, which is not conducive to the start and stop operation of components such as switches in the distribution box, and substantially improves the operation performance of the distribution box components, ensuring the reliability of the distribution box.

[0032] Here, the second disc spring 417 can not only apply an initial clamping force to ensure that the distribution box is continuously in a firmly clamped state, ensuring the reliability and trouble-free operation of the distribution box.

[0033] In a preferred but non-limiting embodiment of the present invention, the number of the lead screws 419 is a pair. The pair of lead screws 419 are vertically arranged on the locking platform 412. The introduction of the pair of lead screws 419 ensures the trouble-free displacement of the supporting piece 416 and the fitting piece 415, ensuring the clamping performance.

[0034] In a preferred but non-limiting embodiment of the present invention, as Figure 3As shown, the locking table 412 includes a horizontal support piece 4122 and vertical support bars 4121 provided at both ends of the horizontal support piece 4122. Inside the vertical support bars 4121, there are a first sprocket 4123, a stabilizing roller 4124, a second sprocket 4125, and a third sprocket 4126. The first sprocket 4123 and the third sprocket 4126 are respectively provided on a pair of lead screws 419. The stabilizing roller 4124 is provided on the vertical support bar 4121. One end of the stabilizing roller 4124 penetrates through the vertical support bar 4121 and extends to the outer wall of the vertical support bar 4121. Additionally, a lead screw with a hexagonal prism-shaped head is provided at one end of the stabilizing roller 4124. The second sprocket 4125 is provided on the stabilizing roller 4124 and meshes with the first sprocket 4123 and the third sprocket 4126 respectively. The inclusion of the first sprocket 4123, the stabilizing roller 4124, the second sprocket 4125, and the third sprocket 4126 facilitates the synchronous operation of the rotation of the pair of lead screws 419, essentially improving the operational efficiency of the locking part 4.

[0035] In a preferred but non-limiting embodiment of the present invention, as Figure 6 shown, a clamping device 7 is further provided on the assembly frame 3. The clamping device 7 includes a third connecting bar 714, a fourth connecting bar 712, a transition bar 715, rollers 716, a stop bar 717, and a third disc spring 713. The rollers 716 are mirror-symmetrically provided at both ends of the stop bar 717. The transition bar 715 is provided on the rollers 716. One end of the third connecting bar 714 is provided on the transition bar 715. The fourth connecting bar 712 has a right-angled folding ruler-shaped structure. A groove is provided on the upper part of the fourth connecting bar 712. The lower part of the fourth connecting bar 712 is rotatably connected to the side piece of the assembly frame 3. The other end of the third connecting bar 714 is arranged in the groove. The third disc spring 713 is arranged in the groove. One end of the third disc spring 713 is provided on the lower part of the third connecting bar 714, and the other end of the third disc spring 713 is provided on the lower wall of the groove. The clamping device 7 can clamp and stabilize the upper part of the distribution box, ensuring the reliability of the distribution box. And with the mutual cooperation of the third connecting bar 714, the fourth connecting bar 712, and the third disc spring 713, the device can be applied to distribution boxes of different specifications, essentially ensuring the trouble-free operation of the distribution box.

[0036] The maintenance device for the power system of the present invention can stabilize distribution boxes of different specifications, and at the same time make the distribution box more reliable, ensuring the reliability of the distribution box. The introduction of the buffering part 5 can not only achieve the buffering effect on the distribution box, but also achieve the stabilizing effect at the same time. The locking part 4 is used to stabilize a pair of adjacent distribution boxes, preventing the problem of impaired installation function of the distribution box caused by the simultaneous installation of distribution boxes of different specifications, and ensuring the reliability of the distribution box.

[0037] In a preferred but non-limiting embodiment of the present invention, the rectangular table 2 has a structure with a cavity inside, and one vertical support bar 4121 has a structure with a cavity inside.

[0038] A maintenance method for a maintenance device for a power system according to the present invention includes:

[0039] When installing the distribution box, place the distribution box on the bearing platform 519 on the shock-absorbing part 5. Because the distribution box itself has gravity, under the dragging of the gravity of the distribution box itself, the bearing platform 519 is pushed downward. The downward displacement of the bearing platform 519 pulls the hoop one 516 downward, compresses the disc spring one 518, and one end of the traction transition bar 515 moves downward, so as to push one end of the rotating bar 514 outward, and let the other end of the rotating bar 514 pull the clamping piece 512 to move toward the middle, achieving the effect of clamping the distribution box. Then, rotate the stabilizing roller 4124 with a wrench to drive the sprocket two 4125 to rotate. The rotation of the sprocket two 4125 drives the sprocket one 4123 and the sprocket three 4126 to rotate. The rotation of the sprocket one 4123 and the sprocket three 4126 drives a pair of lead screws 419 to rotate. The rotation of a pair of lead screws 419 drives the hoop two 420 on the lead screw 419 to move synchronously toward the middle, pulling one end of the connecting bar two 418 toward the middle, so as to push the supporting piece 416 outward. The outward displacement of the supporting piece 416 pulls the fitting piece 415 outward, making the fitting piece 415 contact the distribution box. Then, rotate the stabilizing roller 4124 until the disc spring two 417 is compressed. Then, rotate the connecting bar four 712 to drive the connecting bar three 714 and the stop bar 717 to rotate. Place the stop bar 717 on one side of the distribution box according to requirements, achieving the effect of stabilizing the distribution box. When disassembling the distribution box, rotate the stabilizing roller 4124 in the reverse direction, driving the sprocket two 4125 to rotate in the reverse direction, so as to drive the sprocket one 4123 and the sprocket three 4126 to rotate in the reverse direction, driving a pair of lead screws 419 to rotate, driving the hoop two 420 to move outward, driving one end of the connecting bar two 418 to move outward, driving the supporting piece 416 to move inward, and the supporting piece 416 driving the fitting piece 415 to move inward, releasing the restraint on the distribution box. The operator only needs to remove it from the shock-absorbing part 5.

[0040] Among them, when clamping the distribution box, the stabilizing roller 4124 is rotated via a wrench to drive the second sprocket 4125 to rotate. The rotation of the second sprocket 4125 drives the first sprocket 4123 and the third sprocket 4126 to rotate. The rotation of the first sprocket 4123 and the third sprocket 4126 drives a pair of lead screws 419 to rotate. The rotation of a pair of lead screws 419 drives the second hoop 420 on the lead screw 419 to move synchronously towards the middle, driving one end of the connecting bar two 418 to move towards the middle, thereby pushing the support piece 416 outwards. The outward displacement of the support piece 416 drives the fitting piece 415 to move outwards, making the fitting piece 415 adhere to the distribution box. Then, rotate the connecting bar four 712 to drive the connecting bar three 714 and the stop bar 717 to rotate, and place the stop bar 717 on one side of the distribution box according to requirements to achieve the effect of stabilizing the distribution box. When disassembling the distribution box, rotate the stabilizing roller 4124 in the reverse direction to drive the second sprocket 4125 to rotate in the reverse direction, thereby driving the first sprocket 4123 and the third sprocket 4126 to rotate in the reverse direction, driving a pair of lead screws 419 to rotate, driving the second hoop 420 to move outwards, driving one end of the connecting bar two 418 to move outwards, driving the support piece 416 to move inwards, and the support piece 416 drives the fitting piece 415 to move inwards, releasing the restraint on the distribution box. The operator only needs to remove it from the buffering part 5.

[0041] The applicant of the present invention has made a detailed description and illustration of the embodiments of the present invention in combination with the accompanying drawings of the specification. However, those skilled in the art should understand that the above embodiments are only the preferred implementation schemes of the present invention. The detailed description is only to help readers better understand the spirit of the present invention, rather than a limitation on the protection scope of the present invention. On the contrary, any improvement or modification based on the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A maintenance device for a power system, characterized in that, Comprising: A rectangular platform, on which an assembly frame and a shock damping part are provided. An action bar is provided on the assembly frame, and a locking part is provided on the action bar. The shock damping part and the locking part are arranged alternately. A mounting platform is provided at the lower part of the rectangular platform. The shock damping part includes clamping pieces, rotating bars, rotating rollers, a bearing platform, a first hoop, a first disc spring, a transition bar and a stabilizing bar. The stabilizing bar is arranged on the lower wall inside the cavity of the rectangular platform. The first hoop is clamped on the stabilizing bar, and the upper part of the first hoop penetrates through the rectangular platform and extends above the rectangular platform. The first disc spring is clamped on the stabilizing bar below the first hoop. The bearing platform is arranged on the upper part of the first hoop. One end of the transition bar is arranged on the first hoop, and the other end of the transition bar is arranged on one end of the rotating bar. The other end of the rotating bar is arranged on the clamping piece. The rotating bar is arranged on the mounting platform via the rotating roller, and the rotating roller is arranged at the middle of the rotating bar; The locking part includes a locking platform, a first connecting bar and a displacement piece. The displacement piece is arranged on the action bar. The locking platform is fixedly connected to the displacement piece via the first connecting bar. A lead screw is provided on the locking platform. The screw threads on both sides in the length direction of the lead screw have opposite turning directions. A pair of second hoops are mirror-symmetrically arranged on the lead screw. A pair of second connecting bars are mirror-symmetrically arranged on the second hoops. One end of the second connecting bar is rotatably connected to the second hoop. A supporting piece is provided on the other end of each second connecting bar. A second disc spring is provided on the supporting piece. One end of the second disc spring is arranged on the supporting piece, and the other end of the second disc spring is fixedly connected to a fitting piece.

2. The maintenance device for a power system according to claim 1, characterized in that, The assembly frame includes a mounting piece and side pieces arranged on both sides of the mounting piece.

3. The maintenance device for a power system according to claim 1, wherein The number of the clamping pieces, rotating bars, rotating rollers and transition bars is a pair. A pair of clamping pieces, rotating bars, rotating rollers and transition bars are mirror-symmetrically arranged on both sides of the bearing platform. The clamping pieces are used to clamp the distribution box. The rotating bars are used to pull the clamping pieces to rotate on the rotating rollers. The transition bars are used to connect the rotating bars and the first hoop.

4. The maintenance device for a power system according to claim 1, characterized in that, A number of fourth disc springs are also provided on the clamping pieces. The number of fourth disc springs is several, and several fourth disc springs are arranged equidistantly on the clamping pieces.

5. The maintenance device for a power system according to claim 4, wherein The number of the lead screws is a pair, and a pair of lead screws are vertically arranged on the locking platform.

6. The maintenance device for a power system according to claim 4, characterized in that, The locking platform includes a horizontal supporting piece and vertical supporting bars arranged at both ends of the horizontal supporting piece. A first sprocket, a stabilizing roller, a second sprocket and a third sprocket are arranged inside the vertical supporting bars. The first sprocket and the third sprocket are respectively arranged on a pair of lead screws. The stabilizing roller is arranged on the vertical supporting bar. One end of the stabilizing roller penetrates through the vertical supporting bar and extends to the outer wall of the vertical supporting bar. A lead screw with a hexagonal prism-shaped head is provided at one end of the stabilizing roller. The second sprocket is arranged on the stabilizing roller and meshes with the first sprocket and the third sprocket respectively.

7. The maintenance device for a power system according to claim 4, characterized in that, A clamping device is also provided on the assembly frame. The clamping device includes a third connecting bar, a fourth connecting bar, a transition bar, rollers, a stop bar and a third disc spring. The rollers are mirror-symmetrically arranged at both ends of the stop bar. The transition bar is arranged on the rollers. One end of the third connecting bar is arranged on the transition bar. The fourth connecting bar is in a right-angled folding structure. A groove is provided on the upper part of the fourth connecting bar. The lower part of the fourth connecting bar is rotatably connected to the side piece of the assembly frame. The other end of the third connecting bar is arranged in the groove. The third disc spring is arranged in the groove. One end of the third disc spring is arranged on the lower part of the third connecting bar, and the other end of the third disc spring is arranged on the lower wall of the groove.

8. The maintenance device for a power system according to claim 4, wherein The rectangular platform has a cavity inside, and a vertical support bar also has a cavity inside.

9. A maintenance method for a maintenance device for a power system according to any one of claims 1 to 8, characterized in that, Including: When installing the distribution box, place the distribution box on the bearing platform of the vibration damping part. Under the dragging of the self-gravity of the distribution box, the bearing platform is pushed downward, and the downward displacement of the bearing platform pulls the hoop 1 downward, compressing the disc spring 1. One end of the traction transition bar moves downward, so as to push one end of the rotating bar outward, making the other end of the rotating bar pull the clamping piece move toward the middle. Then, rotate the stabilizing roller through a wrench to drive the sprocket 2 to rotate. The rotation of the sprocket 2 drives the sprockets 1 and 3 to rotate. The rotation of the sprockets 1 and 3 drives a pair of lead screws to rotate. The rotation of a pair of lead screws drives the hoop 2 on the lead screw to move synchronously toward the middle, pulling one end of the connecting bar 2 toward the middle, so as to push the support piece outward. The outward displacement of the support piece pulls the fitting piece outward, making the fitting piece stick to the distribution box. Then, rotate the stabilizing roller until the disc spring 2 is compressed. Then, rotate the connecting bar 4 to drive the connecting bar 3 and the stop bar to rotate. Place the stop bar on one side of the distribution box according to requirements. When disassembling the distribution box, rotate the stabilizing roller reversely, driving the sprocket 2 to rotate reversely, so as to drive the sprockets 1 and 3 to rotate reversely, driving a pair of lead screws to rotate, driving the hoop 2 to move outward, pulling one end of the connecting bar 2 to move outward, pulling the support piece to move inward, and the support piece pulling the fitting piece to move inward.

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