Isolation grounding operation mechanism

Abstract

The invention relates to power equipment, in particular to an isolation grounding operation mechanism, an isolation operation part comprises an isolation main shaft, an isolation crank arm, an isolation stroke plate, an isolation connecting rod and an isolation driving assembly, the isolation main shaft drives the isolation crank arm to rotate clockwise or anticlockwise, so that the isolation stroke plate moves upwards or downwards, and the isolation connecting rod drives the isolation main shaft to rotate clockwise or anticlockwise. The grounding operation part comprises a grounding main shaft, an output gear, a grounding connecting lever, a grounding stroke plate, a grounding rod and a grounding driving assembly, the grounding main shaft rotates anticlockwise or clockwise to drive the output gear to rotate anticlockwise or clockwise, and the grounding driving assembly drives the grounding connecting lever to rotate anticlockwise or clockwise. When the grounding rod moves downwards or upwards, the grounding crank arm rotates clockwise or anticlockwise, the grounding stroke plate moves downwards or upwards, the grounding rod moves downwards or upwards, and grounding switching-on and grounding switching-off are achieved. The device is of a pure mechanical structure, and is simple in structure, small in maintenance workload and relatively low in cost.

Description

Technical Field

[0001] The invention relates to electric power equipment, in particular to an isolation grounding operating mechanism. Background Art

[0002] An isolating switch is a switch that can meet the isolation requirements of an isolator in the open position. An isolating switch usually has three positions: closing, opening, and grounding.

[0003] In the current existing technology, three-position disconnectors mostly use a rotary isolation mechanism, which has a complex structure, large size and high cost. Providing miniaturized, intelligent and large-capacity switchgear is an urgent problem to be solved in the market. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an isolated grounding operating mechanism which is purely mechanical in structure, simple in structure, small in maintenance workload and relatively low in cost.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] The present invention provides an isolation and grounding operating mechanism, comprising an isolation operating part and a grounding operating part.

[0007] The isolation operation part includes an isolation main shaft, an isolation crank arm, an isolation stroke plate, an isolation connecting rod, and an isolation drive assembly, wherein the isolation drive assembly is connected to the isolation main shaft, and the isolation drive assembly drives the isolation main shaft to rotate, one end of the isolation crank arm is connected to the isolation main shaft, the isolation crank arm rotates synchronously with the isolation main shaft, the other end of the isolation crank arm is connected to the isolation stroke plate, one end of the isolation connecting rod is connected to the isolation stroke plate, and the other end is used to connect or disconnect with the isolation movable cutter head, the isolation stroke plate is horizontally arranged, and the isolation connecting rod is vertically arranged, the isolation main shaft drives the isolation crank arm to rotate clockwise or counterclockwise, and the isolation crank arm drives the isolation stroke plate to move upward or downward, thereby moving the isolation connecting rod upward or downward, and when the isolation connecting rod moves upward, it separates from the isolation movable cutter head to realize isolation opening, and when the isolation connecting rod moves downward, it contacts the isolation movable cutter head to realize isolation closing.

[0008] The grounding operation part includes a grounding main shaft, an output gear, a grounding crank arm, a grounding stroke plate, a grounding rod, and a grounding drive assembly. The grounding drive assembly is connected to the grounding main shaft and drives the grounding main shaft to rotate. The output gear is connected to the grounding main shaft and rotates synchronously with the grounding main shaft. One end of the grounding crank arm is provided with gear teeth, and the output gear meshes with the gear teeth. The other end of the grounding crank arm is connected to the grounding stroke plate. One end of the grounding rod is connected to the grounding stroke plate. The other end of the grounding rod is used to connect or disconnect with the grounding movable cutter head. The grounding stroke plate is arranged horizontally, and the grounding rod is arranged vertically. The counterclockwise or clockwise rotation of the grounding main shaft drives the output gear to rotate counterclockwise or clockwise, and drives the grounding crank arm to rotate clockwise or counterclockwise. The grounding stroke plate moves downward or upward, causing the grounding rod to move downward or upward. When the grounding rod moves downward, it contacts the grounding cutter head to realize grounding closing. When the grounding rod moves upward, it disconnects from the grounding cutter head to realize grounding opening.

[0009] Furthermore, it also includes a mounting bracket, the isolation main shaft and the grounding main shaft can be rotatably connected to the mounting bracket, and one end of the grounding arm provided with gear teeth is hinged to the mounting bracket.

[0010] Furthermore, the isolation drive assembly includes an isolation operating shaft, a first bevel gear, a second bevel gear, and a first spur gear. The first bevel gear is connected to the isolation operating shaft, the first spur gear is connected to the isolation main shaft, the second bevel gear is arranged between the first bevel gear and the first spur gear, and the second bevel gear is engaged with the first bevel gear and the first spur gear. When the isolation operating shaft is rotated, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the first spur gear to rotate, thereby rotating the isolation main shaft.

[0011] Furthermore, it also includes an energy storage elastic member, and the isolation drive assembly also includes a first crank arm, one end of the first crank arm is connected to the isolation main shaft, and the other end of the first crank arm is hinged to one end of the energy storage elastic member.

[0012] Furthermore, the energy storage elastic member is a spring.

[0013] Furthermore, a long hole is provided at one end of the isolation crank arm connected to the isolation stroke plate, and a connecting shaft is provided on the isolation stroke plate. The connecting shaft is arranged in the long hole, and during the rotation of the isolation crank arm, the connecting shaft moves along the length direction of the long hole.

[0014] Furthermore, the grounding drive assembly includes a grounding operating shaft, a third bevel gear, a fourth bevel gear, a first cam, a second cam, and a second transmission shaft. The third bevel gear is connected to the grounding operating shaft, the fourth bevel gear and the first cam are connected to different positions along the length direction of the second transmission shaft, the second cam is connected to the grounding main shaft, the third bevel gear is meshed with the fourth bevel gear, the first cam is meshed with the second cam, and the grounding operating shaft is rotated. The third bevel gear drives the fourth bevel gear to rotate, the fourth bevel gear drives the second transmission shaft to rotate, the second transmission shaft drives the first cam to rotate, the first cam drives the second cam to rotate, and the second cam drives the grounding main shaft to rotate.

[0015] Furthermore, the grounding drive assembly further includes a second crank arm, one end of the second crank arm is connected to the grounding main shaft, and the other end of the second crank arm is hinged to the other end of the energy storage elastic member.

[0016] Furthermore, one end of the grounding plate is connected to a copper busbar.

[0017] Furthermore, two of the isolation connecting rods and two of the grounding rods are provided.

[0018] Compared with the prior art, the isolated grounding operating mechanism of the present invention has at least the following beneficial effects:

[0019] The isolation and grounding operating mechanism of the present invention has an isolation operating part including an isolation main shaft, an isolation crank arm, an isolation stroke plate, an isolation connecting rod, and an isolation drive assembly, and a grounding operating part including a grounding main shaft, an output gear, a grounding crank arm, a grounding stroke plate, a grounding rod, and a grounding drive assembly. Both the isolation operating part and the grounding operating part are purely mechanical structures, with simple structures, small maintenance workload, and relatively low costs. In addition, the isolation operating part and the grounding operating part respectively convert the rotational motion of the operating shaft into linear motion of the isolation stroke plate and the grounding stroke plate, thereby realizing direct-plug isolation and direct-plug grounding, and are easy to operate and highly reliable.

[0020] The isolation grounding operating mechanism of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the isolated grounding operating mechanism of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the isolation crank arm and the isolation stroke plate in the isolation grounding operating mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure between the grounding crank arm and the grounding travel plate in the isolated grounding operating mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the isolation travel plate and the isolation connecting rod, and the grounding travel plate and the grounding rod in the isolation grounding operating mechanism of the present invention;

[0025] Figure 5 The figure is a schematic diagram of the connection structure between the isolation crank arm and the isolation travel plate in the isolation grounding operating mechanism of the present invention. DETAILED DESCRIPTION

[0026] like Figure 1 、 Figure 2 、 Figure 3 As shown, the present invention provides an isolation grounding operating mechanism, comprising an isolation operating part and a grounding operating part.

[0027] The isolation operation part includes an isolation spindle 11, an isolation crank arm 12, an isolation stroke plate 13, an isolation connecting rod 14, and an isolation drive assembly. The isolation drive assembly is connected to the isolation spindle 11, and the isolation drive assembly drives the isolation spindle 11 to rotate. One end of the isolation crank arm 12 is connected to the isolation spindle 11, and the isolation crank arm 12 rotates synchronously with the isolation spindle 11. The other end of the isolation crank arm 12 is connected to the isolation stroke plate 13. One end of the isolation connecting rod 14 is connected to the isolation stroke plate 13, and the other end is used to connect or disconnect with the isolation movable cutter head. The isolation stroke plate 13 is horizontal. The isolation connecting rod 14 is set vertically, the isolation main shaft 11 drives the isolation crank arm 12 to rotate clockwise or counterclockwise, and the isolation crank arm 12 drives the isolation stroke plate 13 to move upward or downward, thereby moving the isolation connecting rod 14 upward or downward. When the isolation connecting rod 14 moves upward, it separates from the isolation movable cutter head to achieve isolation opening. When the isolation connecting rod 14 moves downward, it contacts the isolation movable cutter head to achieve isolation closing. Specifically, the isolation main shaft 11 and the isolation crank arm 12 are connected by bolts, and the isolation stroke plate 13 and the isolation connecting rod 14 are connected by bolts.

[0028] The grounding operation part includes a grounding main shaft 21, an output gear 22, a grounding crank arm 23, a grounding stroke plate 24, a grounding rod 25, and a grounding drive assembly. The grounding drive assembly is connected to the grounding main shaft 21, and the grounding drive assembly drives the grounding main shaft 21 to rotate. The output gear 22 is connected to the grounding main shaft 21, and the output gear 22 rotates synchronously with the grounding main shaft 21. One end of the grounding crank arm 23 is provided with gear teeth, and the output gear 22 is engaged with the gear teeth. The other end of the grounding crank arm 23 is connected to the grounding stroke plate 24, and one end of the grounding rod 25 is connected to the grounding stroke plate. 24 is connected, and the other end of the grounding rod 25 is used to connect or disconnect with the grounding movable blade. The grounding stroke plate 24 is set horizontally, and the grounding rod 25 is set vertically. The grounding main shaft 21 rotates counterclockwise or clockwise to drive the output gear 22 to rotate counterclockwise or clockwise, driving the grounding crank arm 23 to rotate clockwise or counterclockwise. The grounding stroke plate 24 moves downward or upward, causing the grounding rod 25 to move downward or upward. When the grounding rod 25 moves downward, it contacts the grounding blade to achieve grounding closing. When the grounding rod 25 moves upward, it disconnects from the grounding blade to achieve grounding opening. Specifically, it also includes a mounting bracket 32. The isolation main shaft 11 and the grounding main shaft 21 are rotatably connected to the mounting bracket 32. The end of the grounding crank arm 23 provided with gear teeth is hinged to the mounting bracket 32. The grounding stroke plate 24 is also connected to a copper busbar 26, which serves as a conductor. The isolation and grounding operating mechanism of the present invention comprises an isolation operating part including an isolation main shaft 11, an isolation crank arm 12, an isolation stroke plate 13, an isolation connecting rod 14, and an isolation drive assembly; and a grounding operating part including a grounding main shaft 21, an output gear 22, a grounding crank arm 23, a grounding stroke plate 24, a grounding rod 25, and a grounding drive assembly. Both the isolation operating part and the grounding operating part are purely mechanical structures with simple structures, small maintenance workload, and relatively low costs. In addition, the isolation operating part and the grounding operating part respectively convert the rotational motion of the operating shaft into the linear motion of the isolation stroke plate and the grounding stroke plate, thereby realizing direct-plug isolation and direct-plug grounding, and are convenient to operate and highly reliable.

[0029] Optionally, the isolation drive assembly 15 includes an isolation operating shaft 151, a first bevel gear 152, a second bevel gear 153, and a first spur gear 154. The first bevel gear 152 is connected to the isolation operating shaft 151, and the second bevel gear 153 is connected to the first transmission shaft 157. The first transmission shaft 157 is perpendicular to the isolation operating shaft 151. The first transmission shaft 157 and the isolation operating shaft 151 can be rotatably connected to the mounting bracket 32. The first spur gear 154 is connected to the isolation main shaft 11. The second bevel gear 153 is arranged between the first bevel gear 152 and the first spur gear 154. The second bevel gear 153 is engaged with the first bevel gear 152 and the first spur gear 154. When the isolation operating shaft 151 is rotated, the first bevel gear 152 drives the second bevel gear 153 to rotate, and the second bevel gear 153 drives the first spur gear 154 to rotate, thereby rotating the isolation main shaft 11.

[0030] Optionally, an energy storage elastic member 31 is further included, and the isolation drive assembly 15 further includes a first crank arm 155, one end of the first crank arm 155 is connected to the isolation main shaft 11, and the other end of the first crank arm 155 is hinged to one end of the energy storage elastic member 31. During the synchronous rotation of the first crank arm 155 and the isolation main shaft 11, the energy storage elastic member 31 is stretched or compressed.

[0031] Optionally, the grounding drive assembly 26 includes a grounding operating shaft 261, a third bevel gear 262, a fourth bevel gear 263, a first cam 264, a second cam 265, and a second transmission shaft 266. The grounding operating shaft 261 and the second transmission shaft 266 can be rotatably connected to the mounting bracket 32. The grounding operating shaft 261 is perpendicular to the second transmission shaft 266. The third bevel gear 262 is connected to the grounding operating shaft 261. The fourth bevel gear 263 and the first cam 264 are connected to the second transmission shaft 266 along the length direction. At different positions, the second cam 265 is connected to the grounding main shaft 21, the third bevel gear 262 is engaged with the fourth bevel gear 263, the first cam 264 is engaged with the second cam 265, and the grounding operating shaft 261 is rotated. The third bevel gear 262 drives the fourth bevel gear 263 to rotate, and the fourth bevel gear 263 drives the second transmission shaft 266 to rotate. The second transmission shaft 266 drives the first cam 264 to rotate, the first cam 264 drives the second cam 265 to rotate, and the second cam 265 drives the grounding main shaft 21 to rotate.

[0032] Optionally, the grounding drive assembly 26 further includes a second crank arm 267, one end of which is connected to the grounding spindle 21, and the other end of which is hingedly connected to the other end of the energy storage elastic member 31. When the second crank arm 267 rotates, the energy storage elastic member 31 stores spring energy. During the rotation of the isolation spindle 11 of the isolation operating portion, the energy storage elastic member 31 causes the grounding spindle 21 to rotate, thereby driving the second cam 265 to rotate.

[0033] Alternatively, as Figure 4 As shown, two isolation connecting rods 14 and two grounding rods 25 are provided.

[0034] Alternatively, as Figure 5 As shown, a long hole is provided at one end of the isolation crank arm 12 connected to the isolation stroke plate 13, and a connecting shaft is provided on the isolation stroke plate 13. The connecting shaft is set in the long hole. During the rotation of the isolation crank arm 12, the connecting shaft moves along the length direction of the long hole.

[0035] Optionally, the energy storage elastic member 31 is a spring.

[0036] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An isolation grounding operating mechanism, characterized in that: Including isolation operation part and grounding operation part, The isolation operation part comprises an isolation main shaft (11), an isolation crank arm (12), an isolation stroke plate (13), an isolation connecting rod (14), and an isolation drive assembly. The isolation drive assembly is connected to the isolation main shaft (11), and the isolation drive assembly drives the isolation main shaft (11) to rotate. One end of the isolation crank arm (12) is connected to the isolation main shaft (11), and the isolation crank arm (12) rotates synchronously with the isolation main shaft (11). The other end of the isolation crank arm (12) is connected to the isolation stroke plate (13). One end of the isolation connecting rod (14) is connected to the isolation stroke plate (13). 3) on the upper side, and the other end is used to connect or disconnect with the isolation moving cutter head, the isolation stroke plate (13) is arranged horizontally, and the isolation connecting rod (14) is arranged vertically, the isolation main shaft (11) drives the isolation crank arm (12) to rotate clockwise or counterclockwise, and the isolation crank arm (12) drives the isolation stroke plate (13) to move upward or downward, thereby causing the isolation connecting rod (14) to move upward or downward, and when the isolation connecting rod (14) moves upward, it separates from the isolation moving cutter head to realize isolation opening, and when the isolation connecting rod (14) moves downward, it contacts with the isolation moving cutter head to realize isolation closing, The grounding operation part comprises a grounding main shaft (21), an output gear (22), a grounding crank arm (23), a grounding stroke plate (24), a grounding rod (25), and a grounding drive assembly. The grounding drive assembly is connected to the grounding main shaft (21), and the grounding drive assembly drives the grounding main shaft (21) to rotate. The output gear (22) is connected to the grounding main shaft (21), and the output gear (22) rotates synchronously with the grounding main shaft (21). One end of the grounding crank arm (23) is provided with gear teeth, and the output gear (22) meshes with the gear teeth. The other end of the grounding crank arm (23) is connected to the grounding stroke plate (24). The grounding rod (25) is The grounding rod (25) is connected to the grounding stroke plate (24) at one end, and the other end of the grounding rod (25) is used to connect or disconnect with the grounding movable blade. The grounding stroke plate (24) is arranged horizontally, and the grounding rod (25) is arranged vertically. The grounding main shaft (21) rotates counterclockwise or clockwise to drive the output gear (22) to rotate counterclockwise or clockwise, and drives the grounding crank arm (23) to rotate clockwise or counterclockwise. The grounding stroke plate (24) moves downward or upward, so that the grounding rod (25) moves downward or upward. When the grounding rod (25) moves downward, it contacts with the grounding blade to realize grounding closing. When the grounding rod (25) moves upward, it disconnects from the grounding blade to realize grounding opening.

2. The isolation grounding operating mechanism according to claim 1, characterized in that: It also comprises a mounting bracket (32), the isolating main shaft (11) and the grounding main shaft (21) are both rotatably connected to the mounting bracket (32), and one end of the grounding crank arm (23) provided with gear teeth is hinged to the mounting bracket (32).

3. The isolation grounding operating mechanism according to claim 2, characterized in that: The isolation driving assembly (15) comprises an isolation operating shaft (151), a first bevel gear (152), a second bevel gear (153), and a first spur gear (154); the first bevel gear (152) is connected to the isolation operating shaft (151); the first spur gear (154) is connected to the isolation main shaft (11); the second bevel gear (153) is arranged between the first bevel gear (152) and the first spur gear (154); the second bevel gear (153) and the first bevel gear (152) and the first spur gear (154) are all meshed with each other; when the isolation operating shaft (151) is rotated, the first bevel gear (152) drives the second bevel gear (153) to rotate, and the second bevel gear (153) drives the first spur gear (154) to rotate, thereby rotating the isolation main shaft (11).

4. The isolation grounding operating mechanism according to claim 3, characterized in that: It also includes an energy storage elastic member (31), and the isolation drive assembly (15) also includes a first crank arm (155), one end of the first crank arm (155) is connected to the isolation main shaft (11), and the other end of the first crank arm (155) is hinged to one end of the energy storage elastic member (31).

5. The isolation grounding operating mechanism according to claim 4, characterized in that: The energy storage elastic member (31) is a spring.

6. The isolation grounding operating mechanism according to claim 5, characterized in that: One end of the isolation crank arm (12) connected to the isolation stroke plate (13) is provided with a long hole, and the isolation stroke plate (13) is provided with a connecting shaft, which is arranged in the long hole. During the rotation of the isolation crank arm (12), the connecting shaft moves along the length direction of the long hole.

7. The isolated grounding operating mechanism according to claim 1, characterized in that: The grounding drive assembly (26) comprises a grounding operating shaft (261), a third bevel gear (262), a fourth bevel gear (263), a first cam (264), a second cam (265), and a second transmission shaft (266); the third bevel gear (262) is connected to the grounding operating shaft (261); the fourth bevel gear (263) and the first cam (264) are connected to different positions of the second transmission shaft (266) along the length direction; the second cam (265) is connected to the grounding main shaft (21); the third bevel gear (262) is connected to the grounding operating shaft (261); the fourth bevel gear (263) and the first cam (264) are connected to different positions of the second transmission shaft (266) along the length direction; the second cam (265) is connected to the grounding main shaft (21); ) is meshed with the fourth bevel gear (263), the first cam (264) is meshed with the second cam (265), the grounding operating shaft (261) is rotated, the third bevel gear (262) drives the fourth bevel gear (263) to rotate, the fourth bevel gear (263) drives the second transmission shaft (266) to rotate, the second transmission shaft (266) drives the first cam (264) to rotate, the first cam (264) drives the second cam (265) to rotate, and the second cam (265) drives the grounding main shaft (21) to rotate.

8. The isolation grounding operating mechanism according to claim 7, characterized in that: The grounding drive assembly (26) further comprises a second crank arm (267), one end of the second crank arm (267) being connected to the grounding main shaft (21), and the other end of the second crank arm (267) being hinged to the other end of the energy storage elastic member (31).

9. The isolation grounding operating mechanism according to claim 8, characterized in that: One end of the grounding travel plate (24) is also connected to a copper busbar (26).

10. The isolated grounding operating mechanism according to any one of claims 1 to 9, characterized in that: Two of the isolation connecting rods (14) and two of the grounding rods (25) are provided.

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