A synchronous opening and closing auxiliary device for substation auxiliary switches

Abstract

The present invention provides a synchronous opening and closing auxiliary device for a substation auxiliary switch, comprising a first connection plate, a second connection plate, a transmission mechanism, a device housing, and a mounting base. The transmission mechanism is disposed within the device housing, with one end of the transmission mechanism extending from the upper side of the device housing and connected to the first connection plate; the other end of the transmission mechanism extending from the lower side of the device housing and connected to the second connection plate; and one side of the device housing is connected to the mounting base. The present invention utilizes a transmission mechanism to adjust the angle and coordinate the rotation of auxiliary switches, knife switches, or grounding switches, respectively, connected to the first and second connection plates, thereby achieving synchronous operation of the auxiliary switches and power equipment, thereby preventing premature opening of a locking circuit that could lead to electrical miscontrol.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary devices for power equipment, and more particularly to a synchronous opening and closing auxiliary device for auxiliary switches in a transformer substation. Background Art

[0002] The rotation angle of the auxiliary switch currently used in the substation is inconsistent with the rotation angle of the power equipment used with it. When the auxiliary switch has completed switching before the power equipment is moved to the correct position, it will cause the locking circuit to be opened prematurely, resulting in electrical miscontrol, which can easily cause safety accidents. Summary of the Invention

[0003] In order to overcome the defect of the prior art described above that the rotation angle of the auxiliary switch and the power equipment is inconsistent and easily leads to electrical miscontrol, the present invention provides a synchronous opening and closing auxiliary device for the auxiliary switch of the substation.

[0004] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0005] A synchronous opening and closing auxiliary device for a substation auxiliary switch includes a first connection disk, a second connection disk, a transmission mechanism, a device housing, and a mounting base, wherein the transmission mechanism is arranged in the device housing, one end of the transmission mechanism extends out of the upper side of the device housing, and one end of the transmission mechanism is connected to the first connection disk; the other end of the transmission mechanism extends out of the lower side of the device housing, and the other end of the transmission mechanism is connected to the second connection disk; one side of the device housing is connected to the mounting base.

[0006] In this technical solution, the first and second connection disks are used to connect to the auxiliary switch and the rotating part of the power equipment, and the sizes of the first and second connection disks are consistent with the size and structure of conventional auxiliary switches, which is convenient for installation. The transmission mechanism is used to adjust the angles of the first and second connection disks and to synchronize the transmission of the first and second connection disks, so that the auxiliary switch connected to the first and second connection disks and the rotating part of the power equipment are opened and closed or rotated at the same time. During use, according to the position of the auxiliary switch in the substation power equipment, the angles of the connected first and second connection disks are adjusted so that the relative angle between the first and second connection disks meets the relative angle requirements of the auxiliary switch and the rotating part of the power equipment in the substation power equipment. Then, the first connection disk is connected to the auxiliary switch, and the second connection disk is connected to the rotating part of the power equipment. During the opening and closing of the auxiliary switch, the auxiliary switch and the rotating part of the power equipment are opened and closed or rotated synchronously under the transmission action of the transmission mechanism, thereby realizing the position change of the power equipment and the synchronous switching of the auxiliary switch.

[0007] Preferably, the transmission mechanism includes a first rotating shaft, a first gear, a second rotating shaft, and a second gear, wherein one end of the first rotating shaft is connected to the first connecting disk as one end of the transmission mechanism, and the other end of the first rotating shaft is arranged through the gear inner hole of the first gear; the teeth of the second gear are engaged with the teeth of the first gear; the other end of the second rotating shaft is connected to the second connecting disk as the other end of the transmission mechanism, and one end of the second rotating shaft is arranged through the gear inner hole of the second gear.

[0008] Preferably, the first gear is an n-stage gear structure, where n is a positive integer, and the radius of the tooth top circle of the first gear increases step by step from bottom to top; a first slot is provided on the upper side of the device housing, and one end of the first rotating shaft extends out of the upper side of the device housing through the first slot; a second slot is provided on the lower side of the device housing, and the other end of the first rotating shaft is engaged with the second slot; a fixed support is provided on the inner wall of the upper side of the device housing, and an empty hole is provided on the lower side of the device housing, and one end of the second rotating shaft is connected to the fixed support, and the other end of the second rotating shaft extends out of the lower side of the device housing through the empty hole. In this preferred embodiment, first gears of different radii can be selected for transmission according to the relative angle or position between the auxiliary switch and the rotating part of the power equipment, so as to adjust the relative angle or position between the auxiliary switch and the rotating part of the power equipment.

[0009] Preferably, a shift buckle is provided on the first rotating shaft at the position where it is engaged with the first slot and the second slot. The shift buckle on the first rotating shaft can enable the first rotating shaft to be better engaged with the first slot and the second slot respectively, thereby preventing the first rotating shaft from falling off from the first slot or the second slot.

[0010] Preferably, the gear shift buckle is a two-stage circular tube structure, the radius of one end of the gear shift buckle is larger than the radius of the other end of the gear shift buckle, and protrusion structures are provided on both sides of the other end of the gear shift buckle, wherein one end of the gear shift buckle is provided as the buckle brim on the outside of the first slot or the second slot, which is used for the operator to move the gear shift buckle to adjust the radius of the top circle of the first gear meshing with the second gear, thereby realizing the angle adjustment of the auxiliary switch installed with the first connecting disk and the second connecting disk; the other end of the gear shift buckle is used to clamp the teeth of the first slot or the second slot.

[0011] Preferably, a limiting buckle is provided on the second rotating shaft and at the connection position with the empty hole, which is used to limit the second rotating shaft and prevent the second rotating shaft from falling off from the device housing.

[0012] Preferably, a plurality of mounting holes are respectively provided on the first connection plate and the second connection plate for connecting and mounting the first connection plate or the second connection plate to an auxiliary switch or external power equipment.

[0013] Preferably, a plurality of mounting grooves are provided on the mounting base plate for mounting the entire device on the power equipment of the substation to be installed.

[0014] Preferably, an inspection window is provided on the other side of the device housing, and a cover is provided on the inspection window to facilitate inspection and maintenance of the transmission mechanism disposed in the device housing.

[0015] Preferably, a lifter is provided at a connection position between one side surface of the device housing and the mounting base, for adjusting the height of the transmission mechanism provided in the device housing.

[0016] Compared with the prior art, the beneficial effect of the technical solution of the present invention is: by adopting a transmission mechanism to adjust the angle of the auxiliary switch and the rotating part of the power equipment respectively connected to the first connecting disk and the second connecting disk, the synchronous operation of the auxiliary switch and the power equipment is achieved, avoiding premature opening of the locking circuit to cause electrical miscontrol. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the synchronous opening and closing auxiliary device of the substation auxiliary switch of Example 1.

[0018] Figure 2 This is a structural diagram of the synchronous opening and closing auxiliary device of the substation auxiliary switch of Example 2.

[0019] Figure 3 This is a structural diagram of the transmission mechanism in Example 2.

[0020] Among them, 1-first connecting disk, 2-second connecting disk, 3-transmission mechanism, 31-first rotating shaft, 32-first gear, 33-second rotating shaft, 34-second gear, 35-gear adjustment buckle, 36-limiting buckle, 4-device housing, 41-first slot, 42-second slot, 43-fixed support, 44-empty hole, 45-cover, 5-mounting base, 51-mounting hole. DETAILED DESCRIPTION

[0021] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0022] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0023] It is understandable to those skilled in the art that some well-known structures and descriptions thereof may be omitted in the drawings.

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] This embodiment provides a synchronous opening and closing auxiliary device for substation auxiliary switches, such as Figure 1FIG. 1 is a schematic structural diagram of the synchronous opening and closing auxiliary device for the substation auxiliary switch according to the embodiment of the present invention.

[0027] The synchronous opening and closing auxiliary device for the substation auxiliary switch proposed in this embodiment includes a first connection plate 1, a second connection plate 2, a transmission mechanism 3, a device housing 4 and a mounting base 5, wherein the transmission mechanism 3 is arranged in the device housing 4, one end of the transmission mechanism 3 extends out of the upper side of the device housing 4, and one end of the transmission mechanism 3 is connected to the first connection plate 1; the other end of the transmission mechanism 3 extends out of the lower side of the device housing 4, and the other end of the transmission mechanism 3 is connected to the second connection plate 2; one side of the device housing 4 is connected to the mounting base 5, and the entire device is installed on the substation power equipment through the mounting base 5.

[0028] In this embodiment, a plurality of mounting grooves 51 are provided on the mounting base plate 5 for mounting the entire device on the power equipment of the substation.

[0029] In this embodiment, an inspection window is provided on the other side of the device housing 4, and a cover 45 is provided on the inspection window. The cover 45 is detachably connected to the inspection window with bolts and nuts, which facilitates the inspection and maintenance of the transmission mechanism 3 arranged in the device housing 4.

[0030] In this embodiment, a lifter 6 is provided at the connection position between one side of the device housing 4 and the mounting base 5, which is used to adjust the height of the transmission mechanism 3 provided in the device housing 4, facilitating the installation of the auxiliary switch and the adjustment of the auxiliary switch angle.

[0031] During the specific implementation process, according to the relative angle between the auxiliary switch to be opened and closed and the rotating part of the power equipment, the height of the transmission mechanism 3 in the device housing 4 is adjusted by the lifter 6, and the relative angle of the first connecting disk 1 and the second connecting disk 2 is adjusted so that the relative angle of the first connecting disk 1 and the second connecting disk 2 meets the angle requirement of the auxiliary switch and the rotating part of the power equipment in the substation power equipment. Then, the first connecting disk 1 is connected to the auxiliary switch with bolts, and the second connecting disk 2 is connected to the rotating part of the power equipment with bolts and nuts. Then, the auxiliary switch is opened and closed, and the rotating part of the power equipment rotates synchronously under the transmission action of the transmission mechanism 3, thereby realizing the synchronous rotation of the auxiliary switch and the rotating part of the power equipment in the substation power equipment.

[0032] In this embodiment, the first connecting disk 1 and the second connecting disk 2 are used to be connected to the auxiliary switch of the substation power equipment and the rotating part of the power equipment, respectively, and the dimensions of the first connecting disk 1 and the second connecting disk 2 are consistent with the dimension structure of the conventional auxiliary switch, which is convenient for installation; the transmission mechanism 3 is used to adjust the angle of the first connecting disk 1 and the second connecting disk 2, and through the opening and closing action of the auxiliary switch connected to the first connecting disk 1 or the second connecting disk 2, the auxiliary switch connected to the first connecting disk 1 and the second connecting disk 2 is made to rotate synchronously with the rotating part of the power equipment, thereby avoiding electrical miscontrol.

[0033] Example 2

[0034] This embodiment provides a synchronous opening and closing auxiliary device for substation auxiliary switches, such as Figure 2 FIG. 1 is a schematic structural diagram of the synchronous opening and closing auxiliary device for the substation auxiliary switch according to the embodiment of the present invention.

[0035] The synchronous opening and closing auxiliary device for the substation auxiliary switch proposed in this embodiment includes a first connection plate 1, a second connection plate 2, a transmission mechanism 3, a device housing 4 and a mounting base 5, wherein the transmission mechanism 3 is arranged in the device housing 4, one end of the transmission mechanism 3 extends out of the upper side of the device housing 4, and one end of the transmission mechanism 3 is connected to the first connection plate 1; the other end of the transmission mechanism 3 extends out of the lower side of the device housing 4, and the other end of the transmission mechanism 3 is connected to the second connection plate 2; one side of the device housing 4 is connected to the mounting base 5, and the entire device is installed on the substation power equipment through the mounting base 5.

[0036] The transmission mechanism 3 of this embodiment includes a first rotating shaft 31, a first gear 32, a second rotating shaft 33, and a second gear 34, wherein one end of the first rotating shaft 31 is connected to the first connecting disk 1 as one end of the transmission mechanism 3, and the other end of the first rotating shaft 31 is arranged through the gear inner hole of the first gear 32; the gear teeth of the second gear 34 are engaged with the gear teeth of the first gear 32; the other end of the second rotating shaft 33 is connected to the second connecting disk 2 as the other end of the transmission mechanism 3, and one end of the second rotating shaft 33 is arranged through the gear inner hole of the second gear 34.

[0037] Specifically, the first gear 32 is a four-stage gear structure, and the radius of the tooth top circle of the first gear 32 increases step by step from bottom to top. A first slot 41 is provided on the upper side of the device housing 4, through which one end of the first rotating shaft 31 extends out of the upper side of the device housing 4. A second slot 42 is provided on the lower side of the device housing 4, through which the other end of the first rotating shaft 31 engages. A fixed support 43 is provided on the inner wall of the upper side of the device housing 4, and a hole 44 is provided on the lower side of the device housing 4. One end of the second rotating shaft 33 is connected to the fixed support 43, and the other end of the second rotating shaft 33 extends out of the lower side of the device housing 4 through the hole 44. A shift buckle 35 is provided on the first rotating shaft 31 at the engaging position with the first and second slots 41, 42. The shift buckle 24 on the first rotating shaft 31 can better engage the first rotating shaft 31 with the first and second slots 41, 42, respectively, to prevent the first rotating shaft 31 from falling out of the first or second slots 41, 42. The first rotating shaft 31 and the second rotating shaft 33 are threaded rods, which are engaged with the inner holes of the first gear 32 and the second gear 34 .

[0038] The gear shift buckle 35 used in this embodiment is a two-stage circular tube structure, the radius of one end of the gear shift buckle 35 is larger than the radius of the other end of the gear shift buckle 35, and protrusion structures are provided on both sides of the other end of the gear shift buckle 35, wherein one end of the gear shift buckle 35 is provided on the outside of the first slot 41 or the second slot 42, and is used as a buckle brim to facilitate the operator to move the gear shift buckle, thereby adjusting the radius of the top circle of the first gear meshing with the second gear, thereby achieving angle adjustment of the auxiliary switch installed with the first connecting disk and the second connecting disk; the other end of the gear shift buckle 35 is used to clamp the teeth of the first slot 41 or the second slot 42.

[0039] In this embodiment, a limit buckle 36 is provided on the second rotating shaft 33 and at the connection position with the empty hole 44 , which is used to limit the second rotating shaft 33 and prevent the second rotating shaft 33 from falling out of the device housing 4 .

[0040] In this embodiment, a plurality of mounting grooves 51 are provided on the mounting base plate 5 for mounting the entire device on the power equipment of the substation.

[0041] In this embodiment, an inspection window is provided on the other side of the device housing 4, and a cover 45 is provided on the inspection window. The cover 45 is detachably connected to the inspection window with bolts and nuts, which facilitates the inspection and maintenance of the transmission mechanism 3 arranged in the device housing 4.

[0042] In this embodiment, a lifter 6 is provided at the connection position between one side of the device housing 4 and the mounting base 5, which is used to adjust the height of the transmission mechanism 3 provided in the device housing 4, facilitating the installation of the auxiliary switch and the adjustment of the auxiliary switch angle.

[0043] During the specific implementation process, the device is first installed on the substation power equipment through the installation slot 51 opened on the installation base plate 5, and then the height of the transmission mechanism 3 in the device housing 4 is adjusted by the lifter 6 according to the relative angle between the auxiliary switch to be opened and closed in the substation power equipment and the rotating part of the power equipment, and the gear adjustment buckle 35 in the first slot 41 and the second slot 42 is moved to select the level of the first gear 32, that is, by changing the radius of the first gear 32 and meshing with the second gear 34, thereby changing the outer circumference of the two gears, the rotation angle of the first connecting disk 1 and the second connecting disk 2 is adjusted, so that the angle of the first connecting disk 1 and the second connecting disk 2 meets the relative angle requirement between the auxiliary switch and the rotating part of the power equipment, and then the first connecting disk 1 is installed and connected to the auxiliary switch, and the second connecting disk 2 is installed and connected to the rotating part of the power equipment, and the installation of the synchronous opening and closing auxiliary device of the substation auxiliary switch is completed. Operators can directly operate the auxiliary switch to open and close. The first and second connection plates 1 and 2 rotate in tandem under the power of the transmission mechanism 3, achieving synchronized rotation of the auxiliary switch and the rotating parts of the power equipment. This allows for simultaneous positional changes of the power equipment and switching of the auxiliary switch. Furthermore, by removing the cover 45 detachably attached to the inspection window, the transmission mechanism 3, housed within the device housing 4, can be inspected and maintained.

[0044] The same or similar reference numerals correspond to the same or similar components;

[0045] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A synchronous opening and closing auxiliary device for a transformer substation auxiliary switch, characterized in that: The device comprises a first connecting plate, a second connecting plate, a transmission mechanism, a device housing, and a mounting base, wherein the transmission mechanism is disposed within the device housing, one end of the transmission mechanism extends out of the upper side of the device housing, and one end of the transmission mechanism is connected to the first connecting plate; the other end of the transmission mechanism extends out of the lower side of the device housing, and the other end of the transmission mechanism is connected to the second connecting plate; and one side of the device housing is connected to the mounting base; According to the position of the auxiliary switch in the power equipment of the substation, the angles of the connected first connection disk and the second connection disk are adjusted so that the relative angle between the first connection disk and the second connection disk meets the relative angle requirement between the auxiliary switch and the rotating part of the power equipment in the power equipment of the substation. Then, the first connection disk is connected to the auxiliary switch, and the second connection disk is connected to the rotating part of the power equipment. During the opening and closing operation of the auxiliary switch, the auxiliary switch and the rotating part of the power equipment are synchronously opened and closed or rotated under the transmission action of the transmission mechanism, thereby realizing the position change of the power equipment and the synchronous switching of the auxiliary switch. The transmission mechanism includes a first rotating shaft, a first gear, a second rotating shaft, and a second gear, wherein one end of the first rotating shaft is connected to the first connecting plate as one end of the transmission mechanism, and the other end of the first rotating shaft is disposed through the gear inner hole of the first gear; the gear teeth of the second gear are engaged with the gear teeth of the first gear; the other end of the second rotating shaft is connected to the second connecting plate as the other end of the transmission mechanism, and one end of the second rotating shaft is disposed through the gear inner hole of the second gear; A first card slot is provided on the upper side of the device housing, and one end of the first rotating shaft extends out of the upper side of the device housing through the first card slot; a second card slot is provided on the lower side of the device housing, and the other end of the first rotating shaft is engaged with the second card slot; a fixed support is provided on the inner wall of the upper side of the device housing, and an empty hole is provided on the lower side of the device housing, one end of the second rotating shaft is connected to the fixed support, and the other end of the second rotating shaft extends out of the lower side of the device housing through the empty hole.

2. The synchronous opening and closing auxiliary device of the substation auxiliary switch according to claim 1, characterized in that: The first gear is an n-stage gear structure, and the radius of the tooth top circle of the first gear increases step by step from bottom to top.

3. The synchronous opening and closing auxiliary device of the substation auxiliary switch according to claim 1, characterized in that: A gear shift buckle is provided on the first rotating shaft at a position engaging with the first and second clamping slots.

4. The synchronous opening and closing auxiliary device of the substation auxiliary switch according to claim 3, characterized in that: The shift buckle is a two-stage circular tube structure, the radius of one end of the shift buckle is larger than the radius of the other end of the shift buckle, and protrusion structures are provided on both sides of the other end of the shift buckle.

5. The synchronous opening and closing auxiliary device of a substation auxiliary switch according to claim 1, characterized in that: A limit buckle is provided on the second rotating shaft at a position connected to the empty hole.

6. The synchronous opening and closing auxiliary device for substation auxiliary switches according to claim 1, characterized in that: The first connection plate and the second connection plate are respectively provided with a plurality of mounting holes.

7. The synchronous opening and closing auxiliary device for substation auxiliary switches according to claim 1, characterized in that: A plurality of mounting grooves are provided on the mounting base plate.

8. The synchronous opening and closing auxiliary device for substation auxiliary switches according to claim 1, characterized in that: An inspection window is provided on the other side of the device housing, and a sealing cover is provided on the inspection window.

9. The synchronous opening and closing auxiliary device for substation auxiliary switches according to claim 1, characterized in that: A lifter is provided at a connection position between one side surface of the device housing and the installation base plate.

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