A high voltage switch operating mechanism indexing locking device

Abstract

The present invention discloses a high-voltage switch operating mechanism indexing locking device, which solves the problem that the operating mechanism of the high-voltage switch in the prior art is difficult to adjust and has poor reliability. The present invention comprises a support frame, on which an input shaft and a driven shaft are rotatably provided, a indexing drive mechanism is provided on the input shaft, a dividing plate mechanism is provided on the driven shaft, the indexing drive mechanism cooperates with the dividing plate mechanism, a transmission mechanism is provided between the input shaft and the driven shaft, and an output shaft is provided at the output end of the transmission mechanism. The present invention can meet the four working conditions of asymmetric equal-division large-angle output, asymmetric non-equal-division large-angle output, symmetric small-angle output, and symmetric large-angle output by controlling the indexing drive mechanism, the dividing plate mechanism, and the transmission mechanism. The adjustment method is flexible and diverse, which greatly improves the utilization efficiency of the indexing locking device and reduces the production cost.

Description

Technical Field

[0001] The invention relates to the technical field of electrical switches, in particular to an indexing locking device for an operating mechanism of a high-voltage switch. Background Art

[0002] High-voltage switches, also known as high-voltage circuit breakers, are one of the most critical components in the power transmission system. According to the current operating statistics of high-voltage switches, more than half of the failures of high-voltage switches are caused by failures in the operating mechanism. At present, the traditional rocker-type transmission technology of high-voltage switches has been gradually replaced by gear rack, spiral transmission and other technologies. With the upgrading of transmission technology, the realization of a simple and reliable mechanical stop device for the switch body has also become a necessary technical means to achieve the miniaturization of the transmission structure. However, the existing high-voltage switch stop device adopts a single mechanical hard contact stop, and the locking angle is fixed, resulting in high noise and vibration at the end of the product movement, limited scope of application, and serious damage to the body and supporting mechanisms. Summary of the invention

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an indexing locking device for an operating mechanism of a high-voltage switch, which solves the problem that the operating mechanism of the high-voltage switch in the prior art is difficult to adjust and has poor reliability.

[0004] The technical solution of the present invention is implemented as follows: a high-voltage switch operating mechanism indexing locking device comprises a support frame, an input shaft and a driven shaft are rotatably provided on the support frame, a indexing drive mechanism is provided on the input shaft, a indexing disk mechanism is provided on the driven shaft, the indexing drive mechanism cooperates with the indexing disk mechanism, a transmission mechanism is provided between the input shaft and the driven shaft, and an output shaft is provided at the output end of the transmission mechanism.

[0005] The indexing drive mechanism comprises a locking plate fixed on the input shaft and an indexing gear, wherein the locking plate is located above the indexing gear.

[0006] The indexing plate mechanism comprises a pin wheel plate frame fixed on the driven shaft, on which a locking pin and an indexing pin are arranged, the locking pin and the indexing pin are located on the same circular ring, the locking pin cooperates with the locking plate, and the indexing pin cooperates with the indexing gear.

[0007] The pin wheel plate frame includes an upper pin wheel plate and a lower pin wheel plate which are coaxially arranged, the locking pin extends upwardly from the upper pin wheel plate, a rotating shaft sleeve is fixed between the upper pin wheel plate and the lower pin wheel plate, the indexing pin is located in the rotating shaft sleeve, a partition is provided on the upper pin wheel plate, the locking plate is located above the partition, and the plane where the indexing gear is located is located between the upper pin wheel plate and the lower pin wheel plate.

[0008] The locking plate includes a cam portion and a groove portion, the circle where the cam portion is located is a large ring, and the circle where the groove portion is located is a small ring; the locking pin is arranged on the concentric circles of the upper pin wheel plate and / or the lower pin wheel plate, the large ring is circumscribed with two adjacent locking pins, and the small ring is separated from the concentric circle where the locking pin is located.

[0009] The indexing gear comprises a gear portion and a smooth wheel portion, and the indexing pins are arranged on the concentric circles of the upper pin wheel plate and / or the lower pin wheel plate; the gear portion is meshed with the corresponding indexing pins.

[0010] The gear portion of the indexing gear and the cam portion of the locking plate are arranged in a cross shape, and the tooth top circle of the gear portion is cocircular with the circle where the cam portion is located.

[0011] The transmission mechanism comprises a gear I fixed on the driven shaft and a gear II rotatably arranged on the input shaft, the gear I is meshed with the gear II, and the output shaft is coaxially arranged on the gear II.

[0012] The gear I is located below the indexing plate mechanism, and the gear II is located below the indexing drive mechanism.

[0013] The sub-support frame comprises support studs and structural plates, and the structural plates are fixed on the support studs in layers through nut sleeves.

[0014] The present invention can meet the requirements of four working conditions, namely, asymmetric equal-division large-angle output, asymmetric non-equal-division large-angle output, symmetric small-angle output, and symmetric large-angle output, by controlling the indexing drive mechanism, the indexing disk mechanism, and the transmission mechanism. The adjustment method is flexible and diverse, which greatly improves the utilization efficiency of the indexing locking device and reduces the production cost. The indexing drive mechanism cooperates with the indexing disk mechanism to improve the transmission accuracy and transmission stability, further improve the reliability of the high-voltage switch, and extend the service life, and has high practicality and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention in Example 1.

[0017] Figure 2 for Figure 1 Center AA view.

[0018] Figure 3 for Figure 1 Middle BB view.

[0019] Figure 4 This is the status diagram of the indexing gear and the locking plate in the tripped and locked state in working condition 1.

[0020] Figure 5 This is the status diagram of the indexing gear and the locking plate in the unlocked meshing state in working condition 1.

[0021] Figure 6 This is the status diagram of the indexing gear and locking plate in the transmission output state in working condition 1.

[0022] Figure 7 This is the status diagram of the indexing gear and locking plate when the transmission is in the tripped state in working condition 1.

[0023] Figure 8 This is the status diagram of the indexing gear and locking plate in the locked braking state in working condition 1.

[0024] Fig. 9 This is the working status diagram of the indexing gear and locking plate in working condition 2.

[0025] Fig.10 Schematic diagram of the internal structure of the indexing locking device in working conditions 3 and 4.

[0026] Fig.11 This is the working status diagram of the indexing gear and locking plate in working conditions 3 and 4. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1As shown, in embodiment 1, a high-voltage switch operating mechanism indexing locking device includes a support frame, preferably, the sub-support frame includes four support studs 15 and a plurality of structural plates 12, and the structural plates 12 are layered and fixed on the support studs 15 through nut sleeves 13 to match the layered arrangement of the indexing drive mechanism, the indexing disk mechanism and the transmission mechanism. The support frame is rotatably provided with an input shaft 9 and a driven shaft 14, the input shaft 9 is provided with a indexing drive mechanism, the driven shaft 14 is provided with a indexing disk mechanism, the indexing drive mechanism cooperates with the indexing disk mechanism, the input shaft 9 serves as a power input shaft, drives the indexing drive mechanism to rotate, and the indexing drive mechanism drives the indexing disk mechanism to perform indexing rotation, thereby realizing the indexing rotation of the output end. A transmission mechanism is provided between the input shaft 9 and the driven shaft 14, and an output shaft 11 is provided at the output end of the transmission mechanism; when the indexing drive mechanism drives the indexing disk mechanism to rotate, the output shaft is driven to rotate through the transmission mechanism, thereby realizing the indexing control of the operating mechanism of the high-voltage switch.

[0029] Furthermore, the transmission mechanism includes a gear I4 fixed on the driven shaft 14 and a gear II10 rotatably arranged on the input shaft 9, the gear I4 meshes with the gear II10, and the output shaft 11 is coaxially arranged on the gear II10. The gear I4 is located below the indexing plate mechanism, and the gear II10 is located below the indexing drive mechanism. The input shaft drives the indexing plate mechanism to index and rotate through the indexing drive mechanism. When the indexing plate mechanism rotates, it drives the driven shaft to rotate. At this time, gear I is the driving gear and gear II is the driven gear. The driving gear drives the driven gear to rotate, thereby realizing the rotation of the output shaft, and achieving the purpose of stable power transmission and indexing control.

[0030] like Figure 2 , 3As shown, embodiment 2 is a high-voltage switch operating mechanism indexing locking device, the indexing drive mechanism includes a locking plate 7 and a indexing gear 8 fixed on the input shaft 9, the locking plate 7 is located above the indexing gear 8, the input shaft 9 adopts a cylindrical shaft with an axial plane, the locking plate 7 and the indexing gear 8 are fixed to the input shaft through a retaining ring 16, and rotate synchronously with the input shaft. The indexing plate mechanism includes a pin wheel plate frame 2 fixed to the driven shaft 14, the driven shaft adopts a cylindrical shaft with an axial plane, the pin wheel plate frame 2 is arranged in layers and fixed to the driven shaft through a retaining ring 16, and rotates synchronously with the driven shaft. The pin wheel plate frame 2 is provided with a locking pin 1 and an indexing pin 5. The locking pin 1 and the indexing pin 5 are located on the same circle. The locking pin 1 and the indexing pin 5 are distributed at equal angles or non-equal angles on the same circle. When equal-angle indexing operation is required, the locking pin 1 and the indexing pin 5 are distributed at equal angles; when non-equal-angle indexing operation is required, the locking pin 1 and the indexing pin 5 are distributed at non-equal angles (this arrangement is adopted in this embodiment). The locking pin 1 cooperates with the locking plate 7, and the indexing pin 5 cooperates with the indexing gear 8. When the locking plate cooperates with the locking pin, it is called the locked state; when the locking plate is disengaged from the locking pin, it is called the unlocked state; when the indexing gear is meshed with the indexing pin, it is called the meshed state; when the indexing gear is disengaged from the indexing pin, it is called the tripped state. During the operation of the operating mechanism of the high-voltage switch, the indexing locking device must go through the processes of tripping locking, unlocking engagement, transmission output, transmission tripping, locking braking, etc., to perform high-precision indexing control, good reliability, and extend the service life of the high-voltage switch.

[0031] Furthermore, the pin wheel plate frame 2 includes an upper pin wheel plate 2-1 and a lower pin wheel plate 2-2 which are coaxially arranged, and the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2 are fixedly connected to the driven shaft through a retaining ring. The locking pin 1 extends upward from the upper pin wheel plate 2-1 to facilitate cooperation with the locking plate. A rotating sleeve 6 is fixed between the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2, and the indexing pin 5 is located in the rotating sleeve 6. The indexing pin 5 is limited to between the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2 to facilitate cooperation with the indexing gear. A partition 3 is provided on the upper pin wheel plate 2-1, and the locking plate 7 is located above the partition 3. The partition separates the indexing drive mechanism from the indexing disk mechanism. The plane where the indexing gear 8 is located is located between the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2, that is, the indexing gear is only meshed with the indexing pin for transmission, avoiding interference and improving the compactness of the overall structure.

[0032] Further, the locking plate 7 includes a cam portion 71 and a groove portion 72, the circle where the cam portion 71 is located is a large circle, and the circle where the groove portion 72 is located is a small circle. The central angle corresponding to the cam portion 71 and the central angle corresponding to the groove portion 72 are set as required. The locking pin 1 is arranged on the concentric circles of the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2, the large circle is circumscribed with two adjacent locking pins 1, and the small circle is separated from the concentric circle where the locking pin 1 is located, so as to realize the indexing switching between the unlocking and locking states. The indexing gear 8 includes a gear portion 81 and a light wheel portion 82, and the indexing pin 5 is arranged on the concentric circles of the upper pin wheel plate 2-1 and the lower pin wheel plate 2-2; the gear portion 81 is meshed with the corresponding indexing pin 5, and the number of teeth of the gear portion 81 is set as required. Preferably, the gear portion 81 of the indexing gear 8 and the cam portion 71 of the locking plate 7 are arranged in a cross shape, and the tooth top circle of the gear portion 81 is cocircular with the circle where the cam portion 71 is located. That is, the central angle corresponding to the cam portion 71 is equal to the central angle corresponding to the light wheel portion 82, and the central angle corresponding to the groove portion 72 is equal to the central angle corresponding to the gear portion 81, so as to smoothly complete the precise switching of the processes such as tripping and locking, unlocking and engaging, transmission output, transmission tripping, and locking and braking, thereby ensuring the transmission accuracy and control accuracy.

[0033] The other structures are the same as those in Example 1.

[0034] In actual operation, different indexing gears and locking plates can be selected according to the three-station position, and the positions of the indexing pin and locking pin can be adjusted at the same time. There are four specific situations:

[0035] Working condition 1: Asymmetric large angle output

[0036] The indexing gear has more teeth on one end and fewer teeth on the other end, and the locking plate adopts a structure that matches it. Gears I and II use large-angle gears. The input shaft 9 is controlled to rotate 180° each time to brake, that is, after the release lock (such as Figure 4 as shown), unlock and engage (as shown Figure 5 As shown), transmission output (as Figure 6 as shown), transmission tripping (as shown Figure 7 as shown), locking brake (as shown Figure 8 The output shaft 11 outputs different large angles in counterclockwise and clockwise directions to realize asymmetric large angle indexing control.

[0037] Working condition 2: Asymmetric and non-equally divided large angle output

[0038] like Fig. 9, adjust different gear tooth angles and different pin wheel pin angles, and use the same number of multi-tooth structures at both ends of the indexing gear; gears I and II use large-angle gears. Control the input shaft 9 to brake each time it rotates 180°, and after the process of tripping and locking, unlocking and meshing, transmission output, transmission tripping, and locking and braking, the output shaft 11 outputs different large angles in the counterclockwise and clockwise direction, realizing asymmetric and unequally divided large-angle indexing control.

[0039] Working condition 3: symmetrical small angle output

[0040] like Fig.10 , 11 , the transmission mechanism is removed, the output shaft is directly installed on the driven shaft, the indexing pins are evenly arranged, gears Ⅰ and Ⅱ use small-angle pinions to control the input shaft 9 to brake each time it rotates 360°, that is, it goes through the process of tripping and locking, unlocking and engaging, transmission output, transmission tripping, and locking and braking; the output shaft 11 outputs the same angle counterclockwise and clockwise to achieve symmetrical small-angle indexing control.

[0041] Working condition 4: symmetrical large angle output

[0042] like Fig.10 , 11 , the transmission mechanism is removed, the output shaft is directly installed on the driven shaft, the indexing pins are evenly arranged, gears Ⅰ and Ⅱ use large-angle large gears, and the input shaft 9 is controlled to brake each time it rotates 360°, that is, it goes through the process of tripping and locking, unlocking and engaging, transmission output, transmission tripping, and locking and braking; the output shaft 11 outputs the same angle counterclockwise and clockwise to achieve symmetrical large-angle indexing control.

[0043] By controlling the indexing drive mechanism, the indexing plate mechanism and the transmission mechanism, the above four working conditions can be met, greatly improving the utilization efficiency of the indexing locking device and reducing production costs. The indexing drive mechanism and the indexing plate mechanism cooperate to improve the transmission accuracy and transmission stability, and further increase the service life of the indexing locking device.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-voltage switch operating mechanism indexing locking device, comprising a support frame, characterized in that: An input shaft (9) and a driven shaft (14) are rotatably provided on the support frame, a dividing drive mechanism is provided on the input shaft (9), a dividing plate mechanism is provided on the driven shaft (14), the dividing drive mechanism cooperates with the dividing plate mechanism, a transmission mechanism is provided between the input shaft (9) and the driven shaft (14), and an output shaft (11) is provided at the output end of the transmission mechanism; The indexing drive mechanism comprises a locking plate (7) and an indexing gear (8) fixed on the input shaft (9), wherein the locking plate (7) is located above the indexing gear (8); The indexing plate mechanism comprises a pin wheel plate frame (2) fixed on a driven shaft (14), a locking pin (1) and an indexing pin (5) being provided on the pin wheel plate frame (2), the locking pin (1) and the indexing pin (5) being located on the same circular ring, the locking pin (1) being matched with the locking plate (7), and the indexing pin (5) being matched with the indexing gear (8); The pin wheel plate frame (2) comprises an upper pin wheel plate (2-1) and a lower pin wheel plate (2-2) which are coaxially arranged. The locking pin (1) extends upward from the upper pin wheel plate (2-1). A rotating shaft sleeve (6) is fixed between the upper pin wheel plate (2-1) and the lower pin wheel plate (2-2). The indexing pin (5) is located in the rotating shaft sleeve (6). A partition plate (3) is provided on the upper pin wheel plate (2-1). The locking plate (7) is located above the partition plate (3). The plane where the indexing gear (8) is located is located between the upper pin wheel plate (2-1) and the lower pin wheel plate (2-2).

2. The indexing locking device for the operating mechanism of the high-voltage switch according to claim 1 is characterized in that: The locking plate (7) comprises a cam portion (71) and a groove portion (72), the circle where the cam portion (71) is located is a large circle, and the circle where the groove portion (72) is located is a small circle; the locking pin (1) is arranged on a concentric circle of the upper pin wheel plate (2-1) and / or the lower pin wheel plate (2-2), the large circle is circumscribed to two adjacent locking pins (1), and the small circle is separated from the concentric circle where the locking pin (1) is located.

3. The indexing locking device for the operating mechanism of the high-voltage switch according to claim 2, characterized in that: The indexing gear (8) comprises a gear portion (81) and a light wheel portion (82); the indexing pins (5) are arranged on concentric circles of the upper pin wheel plate (2-1) and / or the lower pin wheel plate (2-2); and the gear portion (81) meshes with the corresponding indexing pins (5).

4. The indexing locking device for the operating mechanism of the high-voltage switch according to claim 3, characterized in that: The gear portion (81) of the indexing gear (8) and the cam portion (71) of the locking plate (7) are arranged in a cross shape, and the tooth top circle of the gear portion (81) is cocircular with the circle where the cam portion (71) is located.

5. The indexing locking device for the operating mechanism of a high-voltage switch according to any one of claims 1 to 4, characterized in that: The transmission mechanism comprises a gear I (4) fixed on a driven shaft (14) and a gear II (10) rotatably arranged on an input shaft (9); the gear I (4) meshes with the gear II (10); and the output shaft (11) is coaxially arranged on the gear II (10).

6. The indexing locking device for the operating mechanism of the high-voltage switch according to claim 5, characterized in that: The gear I (4) is located below the indexing plate mechanism, and the gear II (10) is located below the indexing drive mechanism.

7. The indexing locking device for the operating mechanism of a high-voltage switch according to any one of claims 1 to 4 and 6, characterized in that: The support frame comprises a support stud (15) and a structural plate (12), wherein the structural plate (12) is fixed on the support stud (15) in layers via nut sleeves (13).

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