Auxiliary device for operation of hard pressing plate of electrically-driven transformer substation

Abstract

The embodiment of the invention provides an electric drive type substation hard pressing plate operation auxiliary device, and relates to the technical field of hard pressing plate switching. An electric drive type transformer substation hard pressing plate operation auxiliary device comprises a shell, through holes are symmetrically formed in one side of the shell, connectors are rotationally arranged in the two through holes, sleeves are installed on the two connectors, and a sliding groove is formed in the position, between the two through holes, of the shell. A sleeve is arranged on a lock nut of a hard pressing plate in a sleeving mode, a driving wheel is meshed with two driven wheels through driving of a motor, so that the two driven wheels drive a connector to rotate, the connector drives the sleeve to rotate to screw the lock nut, and when the driving wheel rotates, a first bevel gear and a second bevel gear are made to be meshed, and a first rotating gear and a second rotating gear are made to be meshed; therefore, the lead screw rotates, the shifting plate is promoted to slide in the sliding groove to push the connecting piece of the hard pressing plate to one side, the functions of screwing the lock nut and pushing the connecting piece are integrated in one device, the equipment structure is simplified, and the throwing and withdrawing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hard pressure plate insertion and withdrawal, and in particular to an electrically driven substation hard pressure plate operation auxiliary device. Background Art

[0002] The operation of the hard pressure plate is involved in the transformation of the substation, the automatic switching of the equipment, the switching of the reclosing switch, etc. The conventional technology for switching the hard pressure plate is often to repeat the two sets of lock nuts of the same pressure plate twice manually. Due to the instability of the manual single operation, the tightening torque of the lock nut on the hard pressure plate is different, which causes the safety hazard of the gasket virtual connection or the difficulty in withdrawing the pressure plate. In addition, the spacing between the pressure plates on the switch cabinet and other equipment is small, which is often relatively difficult for operators to operate in practice, greatly affecting the work efficiency. Although there are some automated equipment on the market for hard pressing plate operations, there are still some shortcomings: the existing automated equipment can usually only achieve a single function, such as only being able to tighten bolts or only being able to push connecting plates, and the functional integration is low; when some devices push the connecting plates, the connecting plates are easy to slip off, resulting in operation failure; after pushing the connecting plates, the existing equipment is difficult to reset again, and additional operating steps are required. Summary of the invention

[0003] The present application aims to at least solve the existing technical problems that although there are some automation devices on the market for hard pressure plate operation, there are still some shortcomings: the existing automation devices can usually only achieve a single function, such as only being able to tighten bolts or only being able to push connecting pieces, and the functional integration is low. To this end, the present application proposes an electrically driven substation hard pressure plate operation auxiliary device.

[0004] According to an embodiment of the present application, an electrically driven substation hard pressure plate operation auxiliary device includes a shell, one side of the shell is symmetrically provided with through holes, connecting heads are rotatably arranged in the two through holes, sleeves are installed on the two connecting heads, a slide groove is provided on the shell between the two through holes, a paddle plate is slidably arranged in the slide groove, and the two connecting heads and the paddle plate are driven by a transmission mechanism installed inside the shell, and the sleeve is sleeved on the lock nut of the hard pressure plate. When the transmission mechanism is in operation, the sleeve rotates with the lock nut, and at the same time, the paddle plate pushes the connecting piece on the hard pressure plate to one side.

[0005] According to some embodiments of the present application, the transmission mechanism includes a driving wheel rotating inside the outer shell, and the two sides of the driving wheel are respectively meshed with two driven wheels rotating inside the outer shell. The driving wheel is driven by a motor, and the motor is installed in a chassis arranged on one side of the outer shell, and the ends of the two driven wheel shafts are fixedly connected to the connecting head.

[0006] According to some embodiments of the present application, torque sensors are installed on the rotating shafts of the two driven wheels, and data detected by the torque sensors is displayed on a display screen installed on one side of the housing.

[0007] According to some embodiments of the present application, the center of the driving wheel is coaxially connected to the bevel gear, and a rotating rod is rotatably arranged inside the outer shell, one end of the rotating rod is fixedly connected to bevel gear two, bevel gear two is meshed with bevel gear one, the other end of the rotating rod is fixedly connected to rotating gear one, and a screw rod is rotatably arranged at a portion of the outer shell near the upper end, one end of the screw rod is fixedly connected to rotating gear two, rotating gear one is meshed with rotating gear two, and the screw rod passes through the lower end of the shift plate and is threadedly connected to the shift plate.

[0008] According to some embodiments of the present application, a swivel is provided on the outer side of the connector, and the swivel is rotatably disposed in an annular groove provided on the inner wall of the through hole of the shell.

[0009] According to some embodiments of the present application, a protrusion is provided on the inner side of the lower end of the sleeve, and the protrusion is slidably connected to a T-slot provided on the outer wall of the connector.

[0010] According to some embodiments of the present application, a plurality of fixing grooves are provided on the inner side of the upper end of the sleeve.

[0011] According to some embodiments of the present application, a groove is provided at a portion of the dial plate close to the upper end, and a card slot is provided in the groove.

[0012] According to some embodiments of the present application, a symmetrical limiting groove is opened on the inner wall of one side of the groove, and a sliding plate is slidably arranged in the limiting groove, and the size of the sliding plate is adapted to the size of the hard pressure plate connecting piece.

[0013] According to some embodiments of the present application, a through groove is opened at the upper end of the shift plate, and a self-locking plate is slidably arranged in the through groove, a spring is connected between one side of the self-locking plate and one side wall of the through groove, the other side of the self-locking plate passes through the other side wall of the through groove and fits with one side of the slide plate, and an extension block is arranged at the upper end of the self-locking plate.

[0014] The beneficial effects of this application are: 1. By setting a sleeve to be sleeved on the lock nut of the hard pressure plate, the driving wheel is engaged with the two driven wheels by the drive of the motor, so that the two driven wheels rotate with the connecting head, and the connecting head rotates with the sleeve to twist the lock nut. While the driving wheel rotates, the bevel gear one and the bevel gear two are meshed, and the rotating gear one and the rotating gear two are meshed, so that the screw rod rotates, and the paddle plate is pushed in the slide groove to push the connecting piece of the hard pressure plate to one side, so as to realize the insertion and withdrawal operation of the hard pressure plate. The automated operation reduces the errors caused by human factors and improves the safety of operation. Secondly, the functions of twisting the lock nut and pushing the connecting piece are integrated in one device, which simplifies the equipment structure, reduces the occupied space, and improves the insertion and withdrawal efficiency.

[0015] 2. By arranging a slide plate and a self-locking plate in the dial plate, the hard pressure plate connecting piece entering the groove is self-locked. When the connecting piece contacts the slide plate and pushes the slide plate into the slot as the dial plate moves, the self-locking plate is elastically pushed by the spring and slides out of the through slot to confine the connecting piece in the groove. This design not only improves the stability when pushing the connecting piece, but also resets the connecting piece when the dial plate moves back, so that the connecting piece is reconnected, making the insertion and withdrawal operation of the hard pressure plate more efficient, accurate and safe.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an electrically driven substation hard pressure plate operation auxiliary device according to an embodiment of the present application; Figure 2 This is a schematic diagram of the disassembly of the connector and the sleeve structure according to an embodiment of the present application; Figure 3 is a schematic cross-sectional view of a sleeve structure according to an embodiment of the present application; Figure 4 is a schematic cross-sectional view of a housing structure according to an embodiment of the present application; Figure 5 is a schematic diagram of the transmission mechanism structure according to an embodiment of the present application; Figure 6 is a schematic diagram of the meshing state of the driving wheel and the driven wheel according to an embodiment of the present application; Figure 7 is a schematic diagram of the meshing state of bevel gear 1 and bevel gear 2 according to an embodiment of the present application; Figure 8 is a schematic diagram of the structure of a dial plate according to an embodiment of the present application; Fig. 9 is a schematic cross-sectional view of a paddle structure according to an embodiment of the present application; Fig.10 It is a schematic diagram of the annular groove structure according to an embodiment of the present application.

[0018] 1. Casing; 2. Chassis; 3. Display screen; 4. Slide; 5. Annular groove; 6. Driving wheel; 7. Motor; 8. Driven wheel; 9. Torque sensor; 10. Connector; 11. Swivel; 12. T-slot; 13. Bevel gear one; 14. Rotating rod; 15. Bevel gear two; 16. Rotating gear one; 17. Screw rod; 18. Rotating gear two; 19. Switch plate; 20. Groove; 21. Slot; 22. Limiting groove; 23. Slide plate; 24. Through groove; 25. Self-locking plate; 26. Extension block; 27. Spring; 28. Sleeve; 29. ​​Fixing groove; 30. Protrusion. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 10 As shown, according to an embodiment of the present application, an electrically driven substation hard pressure plate operation auxiliary device includes a shell 1, and one side of the shell 1 is symmetrically provided with through holes, and connectors 10 are rotatably arranged in the two through holes, and sleeves 28 are installed on the two connectors 10. The sleeves 28 are used to be sleeved on the lock nuts of the hard pressure plates, and the lock nuts are tightened or loosened by rotating the sleeves 28.

[0020] Among them, a plurality of fixing grooves 29 are opened on the inner side of the upper end of the sleeve 28, and the fixing grooves 29 are adapted to the protrusions on the outer side of the hard pressure plate lock nut. After these protrusions enter the corresponding fixing grooves 29, the situation that the lock nut cannot be driven to rotate when the sleeve 28 rotates can be prevented.

[0021] In order to make the connector 10 more stable when rotating, a rotating ring 11 is provided on the outer side of the connector 10 , and the rotating ring 11 is rotatably arranged in an annular groove 5 provided on the inner wall of the through hole of the housing 1 .

[0022] At the same time, in order to move the connecting piece on the hard pressure plate while driving the lock nut to rotate, a slide groove 4 is opened on the shell 1 between the two through holes, and a shifting plate 19 is slidably arranged in the slide groove 4. When the shifting plate 19 slides from one end of the slide groove 4 to the other end, the shifting operation of the connecting piece can be completed.

[0023] like Figure 8 As shown, a groove 20 is provided near the upper end of the dial plate 19, and a clamping slot 21 is provided in the groove 20. As the dial plate 19 moves, the connecting piece can enter the clamping slot 21, thereby improving the stability of pushing the connecting piece.

[0024] In order to rotate the lock nut and toggle the connecting piece at the same time, the two connectors 10 and the toggle plate 19 are driven by a transmission mechanism installed inside the housing 1, and the sleeve 28 is sleeved on the lock nut of the hard pressure plate. When the transmission mechanism is in operation, the sleeve 28 rotates with the lock nut, and at the same time, the toggle plate 19 pushes the connecting piece on the hard pressure plate to one side.

[0025] Specifically, the transmission mechanism includes a driving wheel 6 rotating inside the shell 1, and the two sides of the driving wheel 6 are respectively engaged with two driven wheels 8 rotating inside the shell 1. The diameter of the driving wheel 6 meets the spacing between the two lock nuts on the hard pressure plate, so the two sleeves 28 can be accurately mounted on the two lock nuts.

[0026] The driving wheel 6 is driven by a motor 7, and the motor 7 is installed in a chassis 2 arranged on one side of the outer shell 1. The ends of the rotating shafts of the two driven wheels 8 are fixedly connected to the connecting head 10. The motor 7 can use a small forward and reverse motor 7, and the synchronously set torque value can realize the precise insertion and withdrawal of the lock nut.

[0027] Furthermore, a torque sensor 9 is installed on the rotating shaft of the two driven wheels 8. The torque sensor 9 is used to accurately detect the torque value of the driven wheel 8. By setting a preset torque value, the lock nut can be prevented from being too tight or too loose, ensuring that the tightness of the lock nut is within a safe range. Figure 1 As shown, the data detected by the torque sensor 9 is displayed via a display screen 3 installed on one side of the housing 1 .

[0028] refer to Figure 5 and Figure 7 As shown, at the center of the driving wheel 6, it is coaxially connected with the bevel gear 13, and a rotating rod 14 is rotatably arranged inside the housing 1, the rotating rod 14 is fixed by a fixing block, and one end of the rotating rod 14 is rotatably connected to the inner wall of the housing 1, one end of the rotating rod 14 is fixedly connected to the bevel gear 2 15, and the other end of the rotating rod 14 is fixedly connected to the rotating gear 16, and a screw rod 17 is rotatably arranged at the part near the upper end of the housing 1, and the two ends of the screw rod 17 are rotatably connected to the inner walls of the two sides of the housing 1, and one end of the screw rod 17 is fixedly connected There is a rotating gear 2 18, and the screw rod 17 passes through the lower end of the dial plate 19 and is threadedly connected to the dial plate 19. Therefore, when the driving wheel 6 rotates, the bevel gear 13 is driven to rotate, and the meshing of the bevel gear 13 and the bevel gear 2 15 is used to drive the rotating rod 14 to rotate, thereby achieving the purpose of the meshing of the rotating gear 16 and the rotating gear 2 18, and then the rotating gear 2 18 drives the screw rod 17 to rotate, prompting the dial plate 19 to automatically slide in the slide groove 4 when the sleeve 28 rotates, so as to realize the rotation of the lock nut and push the connecting piece at the same time.

[0029] It is worth mentioning that in order to improve the stability of the connecting piece when being pushed, a symmetrical limiting groove 22 is opened on the inner wall of one side of the groove 20, and a slide plate 23 is slidably arranged in the limiting groove 22. The size of the slide plate 23 is adapted to the size of the hard pressure plate connecting piece, and the position of the slide plate 23 corresponds to the position of the connecting piece on the hard pressure plate. As the connecting piece enters the groove 20, the slide plate 23 can be pushed into the slot 21.

[0030] Since a through slot 24 is provided at the upper end of the selector plate 19, a self-locking plate 25 is slidably arranged in the through slot 24, and a spring 27 is connected between one side of the self-locking plate 25 and one side wall of the through slot 24, and the other side of the self-locking plate 25 passes through the other side wall of the through slot 24 and fits with one side of the slide plate 23. In a natural state, the self-locking plate 25 is pushed by the slide plate 23 to shrink the self-locking plate 25 in the through slot 24 and squeeze the spring 27. Therefore, after the connecting piece is pushed into the slot 21, the spring 27 is not forced to restore its elasticity and push the self-locking plate 25 out, so that the self-locking plate 25 restricts the connecting piece in the groove 20, thereby improving the stability of the connecting piece when it is pushed. If the connecting piece needs to be reset, the selector plate 19 moves back to drive the connecting piece to reset. For example, when the motor 7 rotates forward, the lock nut can be loosened, and when the motor 7 rotates reversely, the lock nut is tightened, which also prompts the screw rod 17 to rotate forward and reverse.

[0031] An extension block 26 is provided at the upper end of the self-locking plate 25 , and the extension block 26 extends out of the upper end of the through slot 24 , which is convenient for the staff to manually operate, slide the self-locking plate 25 into the through slot 24 , and reset the slide plate 23 .

[0032] like Figure 2 and Figure 3 As shown, a protrusion 30 is provided on the inner side of the lower end of the sleeve 28, and the sleeve 28 can be disassembled and assembled by slidingly connecting the protrusion 30 with the T-slot 12 provided on the outer wall of the connector 10. When disassembling, the sleeve 28 is rotated so that the protrusion 30 enters the vertical T-slot 12, and then the sleeve 28 can be slid upward to realize the separation of the sleeve 28 and the connector 10.

[0033] Specifically, the working principle of this kind of electrically driven substation hard pressure plate operation auxiliary device is as follows: the sleeve 28 is placed on the lock nut of the hard pressure plate, and the driving wheel 6 is engaged with the two driven wheels 8 by the drive of the motor 7, so that the two driven wheels 8 rotate with the connecting head 10, and the connecting head 10 rotates with the sleeve 28 to twist the lock nut. While the driving wheel 6 rotates, the bevel gear 13 and the bevel gear 2 15 are engaged, and the rotating gear 16 and the rotating gear 2 18 are engaged, so that the screw rod 17 rotates, and the paddle plate 19 is driven to slide in the slide groove 4 to push the connecting piece of the hard pressure plate to one side. When the connecting piece contacts the slide plate 23 and moves with the movement of the paddle plate 19, the slide plate 23 is pushed into the slot 21, and the self-locking plate 25 is elastically pushed by the spring 27, slides out of the through slot 24 to restrict the connecting piece in the groove 20.

[0034] It should be noted that the specific model specifications of the motor 7 and the torque sensor 9 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, and its power supply and principle are clear to those skilled in the art, so it will not be elaborated.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrically driven substation hard plate operation auxiliary device, characterized in that: The invention comprises a shell (1), wherein one side of the shell (1) is symmetrically provided with through holes, and connectors (10) are rotatably arranged in the two through holes, and sleeves (28) are installed on the two connectors (10), and a slide groove (4) is provided on the shell (1) between the two through holes, and a paddle (19) is slidably arranged in the slide groove (4), and the two connectors (10) and the paddle (19) are driven by a transmission mechanism installed inside the shell (1) to sleeve the sleeve (28) on the lock nut of the hard pressure plate, and when the transmission mechanism is in operation, the sleeve (28) rotates with the lock nut, and at the same time, the paddle (19) is prompted to push the connecting piece on the hard pressure plate to one side.

2. The electrically driven substation hard pressure plate operation auxiliary device according to claim 1 is characterized in that: The transmission mechanism comprises a driving wheel (6) rotating inside the housing (1), the two sides of the driving wheel (6) respectively meshing with two driven wheels (8) rotating inside the housing (1), the driving wheel (6) being driven by a motor (7), and the motor (7) being mounted in a chassis (2) arranged at one side of the housing (1), and the ends of the rotating shafts of the two driven wheels (8) being fixedly connected to the connector (10).

3. The electrically driven substation hard pressure plate operation auxiliary device according to claim 2 is characterized in that: Torque sensors (9) are mounted on the rotating shafts of the two driven wheels (8), and data detected by the torque sensors (9) are displayed via a display screen (3) mounted on one side of the housing (1).

4. The electrically driven substation hard pressure plate operation auxiliary device according to claim 3 is characterized in that: The center of the driving wheel (6) is coaxially connected to the bevel gear 1 (13), and a rotating rod (14) is rotatably arranged inside the housing (1), one end of the rotating rod (14) is fixedly connected to the bevel gear 2 (15), and the bevel gear 2 (15) is meshed with the bevel gear 1 (13), the other end of the rotating rod (14) is fixedly connected to the rotating gear 1 (16), and a screw rod (17) is rotatably arranged at a position close to the upper end of the housing (1), one end of the screw rod (17) is fixedly connected to the rotating gear 2 (18), and the rotating gear 1 (16) and the rotating gear 2 (18) are meshed, and the screw rod (17) passes through the lower end of the shifting plate (19) and is threadedly connected to the shifting plate (19).

5. The electrically driven substation hard pressure plate operation auxiliary device according to claim 1 is characterized in that: A rotating ring (11) is arranged on the outer side of the connector (10), and the rotating ring (11) is rotatably arranged in an annular groove (5) provided on the inner wall of the through hole of the housing (1).

6. The electrically driven substation hard pressure plate operation auxiliary device according to claim 5 is characterized in that: A protrusion (30) is provided on the inner side of the lower end of the sleeve (28), and the protrusion (30) is slidably connected to a T-shaped groove (12) provided on the outer wall of the connector (10).

7. The electrically driven substation hard pressure plate operation auxiliary device according to claim 6 is characterized in that: A plurality of fixing grooves (29) are formed on the inner side of the upper end of the sleeve (28).

8. The electrically driven substation hard pressure plate operation auxiliary device according to claim 1 is characterized in that: A groove (20) is provided at a portion of the shifting plate (19) close to the upper end, and a clamping groove (21) is provided in the groove (20).

9. The electrically driven substation hard pressure plate operation auxiliary device according to claim 8 is characterized in that: A symmetrical limiting groove (22) is provided on an inner wall of one side of the groove (20), and a sliding plate (23) is slidably arranged in the limiting groove (22), and the size of the sliding plate (23) is adapted to the size of the hard pressure plate connecting piece.

10. The electrically driven substation hard pressure plate operation auxiliary device according to claim 9, characterized in that: A through slot (24) is formed at the upper end of the shifting plate (19), a self-locking plate (25) is slidably disposed in the through slot (24), a spring (27) is connected between one side of the self-locking plate (25) and one side wall of the through slot (24), the other side of the self-locking plate (25) penetrates the other side wall of the through slot (24) and fits with one side of the sliding plate (23), and an extension block (26) is disposed at the upper end of the self-locking plate (25).

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