Electric isolation device of integrated wind power circuit breaker

Abstract

The utility model provides an electric isolation device of an integrated wind power circuit breaker, which belongs to the technical field of 35kV high-voltage vacuum circuit breakers in wind power generation projects, and comprises an electric assembly, a transmission assembly, a positioning assembly and a linkage assembly, the transmission assembly, the positioning assembly and the linkage assembly are all fixedly connected to a grounding switch main shaft, and the grounding switch main shaft is located at the lower end of the switch shell. The electric isolation device of the integrated wind power circuit breaker is simple in structure, convenient to install in the later period, and capable of achieving remote control of the isolation switch, namely remote opening and closing of the isolation switch, and has the advantage of being high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of 35kV high-voltage vacuum circuit breakers for wind power generation projects, in particular to an electric isolation device for an integrated wind power circuit breaker. Background Art

[0002] In the protection configuration of the high-voltage side of transformers in terminal substations, box-type substations and ring network power supply, new energy integrated circuit breakers are widely used. In integrated circuit breakers, the circuit connection is generally changed by an isolating switch, or the line or equipment is isolated from the power supply. The isolating switch should meet the following requirements: ① The isolating switch should meet the specified insulation distance and obvious disconnection signs; ② The isolating switch should have sufficient thermal stability and dynamic stability to prevent automatic disconnection due to the action of electric power; ③ The structure of the isolating switch should be as simple as possible and the action should be reliable. ④ The isolating switch should meet the requirements of five-protection interlocking. However, in the integrated wind power circuit breakers currently used, the isolating switch operating mechanism is mostly manually operated, and the remote operation of the switch cannot be realized, and there are certain safety hazards. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an electric isolation device for an integrated wind power circuit breaker, which has a simple structure and is easy to install later. It can realize remote control of the isolation switch, that is, it can realize remote opening and closing of the isolation switch, and has the advantage of high safety.

[0004] To achieve the above-mentioned purpose, the utility model provides the following solution: an electric isolation device of an integrated wind power circuit breaker, comprising an electric component, a transmission component, a positioning component and a linkage component, wherein the electric component is fixedly mounted on a switch housing, and the transmission component, the positioning component and the linkage component are all fixedly connected to a grounding switch main shaft, and the grounding switch main shaft is located at the lower end of the switch housing.

[0005] Preferably, the electric assembly includes a motor and a motor mounting plate, the motor and the motor mounting plate are fixedly connected by bolts, and the motor mounting plate and the switch housing are fixedly connected by bolts.

[0006] Preferably, the transmission assembly includes a main gear, a two-way clutch, and a clutch gear, and the clutch gear is fixedly connected to the main gear via the two-way clutch.

[0007] Preferably, the transmission assembly further comprises a driven gear, the inner hole of the driven gear is a V-shaped structure, and the driven gear is arranged on the main shaft of the grounding switch, and the driven gear is meshingly connected with the clutch gear.

[0008] Preferably, the main gear is arranged on one side of the electric component, and the main gear is fixedly connected to the left side of the motor.

[0009] Preferably, the positioning assembly comprises a retaining ring and a spacer sleeve, the retaining ring and the spacer sleeve are fixedly connected to the main shaft of the grounding switch, and the retaining ring and the spacer sleeve restrict the driven gear in the transmission assembly to a fixed position on the main shaft of the grounding switch.

[0010] Preferably, the positioning assembly further comprises an auxiliary support and a flange bearing, the flange bearing is reversely mounted on the auxiliary support, and the auxiliary support is fixedly connected to the main shaft of the grounding switch.

[0011] Preferably, the linkage assembly comprises an isolating switch main shaft and an earthing switch main shaft, and the isolating switch main shaft and the earthing switch main shaft are both arranged on the switch housing and distributed up and down.

[0012] Preferably, the linkage assembly also includes an isolation linkage crank arm, a ground knife linkage crank arm and a connecting plate. The isolation linkage crank arm is fixedly connected to the main shaft of the isolation switch, and the ground knife linkage crank arm is fixedly connected to the main shaft of the grounding switch. The two ends of the connecting plate are respectively connected to the isolation linkage crank arm and the ground knife linkage crank arm in a hinged form.

[0013] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0014] The utility model provides an electric isolating device for an integrated wind power circuit breaker, which has a simple structure and is easy to install later, can realize remote control of the isolating switch, that is, realize remote opening and closing of the isolating switch, and has the advantage of high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A front view of an electric isolation device provided by an embodiment of the utility model;

[0017] Figure 2 A left side view of the electric isolation device provided in an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1- auxiliary support, 2- flange bearing, 3- spacer, 4- driven gear, 5- retaining ring, 6- clutch gear, 7- main gear, 8- two-way clutch, 9- motor mounting plate, 10- motor, 11- grounding switch main shaft, 12- isolating switch main shaft, 13- grounding knife linkage crank arm, 14- connecting plate, 15- isolating linkage crank arm, 16- switch housing, 17- isolating switch, 18- grounding switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model aims to provide an electric isolating device for an integrated wind power circuit breaker, which has a simple structure and is easy to install later, can realize remote control of the isolating switch, that is, realize remote opening and closing of the isolating switch, and has the advantage of high safety.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Embodiment 1

[0024] like Figure 1 and Figure 2 As shown, this embodiment provides an electric isolation device for an integrated wind power circuit breaker, including an electric component, a transmission component, a positioning component and a linkage component. The electric component is fixedly mounted on the switch housing 16, and the transmission component, the positioning component and the linkage component are all fixedly connected to the grounding switch main shaft 12, and the grounding switch main shaft 12 is located at the lower end of the switch housing 16.

[0025] The electric component includes a motor 10 and a motor mounting plate 9 , the motor 10 and the motor mounting plate 9 are fixedly connected by bolts, and the motor mounting plate 9 and the switch housing 16 are fixedly connected by bolts.

[0026] The transmission assembly includes a main gear 7, a two-way clutch 8, and a clutch gear 6. The clutch gear 6 is fixedly connected to the main gear 7 through the two-way clutch 8. In addition, the transmission assembly also includes a driven gear 4. The inner hole of the driven gear 4 is a V-shaped structure. It is arranged on the main shaft 11 of the grounding switch. The driven gear 4 is meshed and connected with the clutch gear 6. The main gear 7 is arranged on one side of the electric assembly, and the main gear 7 is fixedly connected to the left side of the motor 10.

[0027] The positioning assembly includes a retaining ring 5 and a spacer 3. The retaining ring 5 and the spacer 3 are both fixedly connected to the earthing switch main shaft 11. The retaining ring 5 and the spacer 3 limit the driven gear 4 in the transmission assembly to a fixed position of the earthing switch main shaft 11. In addition, the positioning assembly also includes an auxiliary support 1 and a flange bearing 2. The flange bearing 2 is reversely mounted on the auxiliary support 1, and the auxiliary support 1 is fixedly connected to the earthing switch main shaft 11.

[0028] The linkage assembly includes an isolating switch main shaft 12 and an earthing switch main shaft 11, and the isolating switch main shaft 12 and the earthing switch main shaft 11 are both arranged on the switch housing 16 and are distributed up and down. In addition, the linkage assembly also includes an isolating linkage crank arm 15, an earthing knife linkage crank arm 13 and a connecting plate 14, wherein the isolating linkage crank arm 15 is fixedly connected to the isolating switch main shaft 12, the earthing knife linkage crank arm 13 is fixedly connected to the earthing switch main shaft 11, and the two ends of the connecting plate 14 are respectively connected to the isolating linkage crank arm 15 and the earthing knife linkage crank arm 13 in a hinged form.

[0029] Working principle:

[0030] When the isolating switch 17 executes the closing command, the motor 10 receives the electrical signal and drives the clutch gear 6 through the main gear 7 to make the driven gear 4 rotate clockwise; the V-shaped structure inside the driven gear 4 is clearance-matched with the V-shaped structure of the grounding switch main shaft 11. When the driven gear 4 rotates clockwise, the grounding switch main shaft 11 is driven to rotate clockwise, and the grounding knife linkage crank arm 13 is further driven to rotate clockwise, and the isolation linkage crank arm 15 is further driven to rotate clockwise through the connecting plate 14, so that the isolating switch main shaft 12 rotates clockwise, thereby realizing the closing of the isolating switch 17.

[0031] When the disconnector 17 executes the opening command, the motor 10 receives the electrical signal and drives the clutch gear 6 through the main gear 7 to make the driven gear 4 rotate counterclockwise; the V-shaped structure inside the driven gear 4 is clearance-matched with the V-shaped structure of the grounding switch main shaft 11. When the driven gear 4 rotates counterclockwise, the grounding switch main shaft 11 is driven to rotate counterclockwise, and the ground knife linkage crank arm 13 is further driven to rotate counterclockwise, and the isolation linkage crank arm 15 is further driven to rotate counterclockwise through the connecting plate 14, so that the disconnector main shaft 12 rotates counterclockwise, thereby realizing the opening of the disconnector 17.

[0032] Therefore, the utility model adopts the above-mentioned electric isolation device of the integrated wind power circuit breaker, which has a simple structure and is easy to install later. It can realize remote control of the isolation switch, that is, realize remote opening and closing of the isolation switch, and has the advantage of high safety.

[0033] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. An electric isolation device for an integrated wind power circuit breaker, characterized in that: It includes an electric component, a transmission component, a positioning component and a linkage component. The electric component is fixedly installed on the switch housing. The transmission component, the positioning component and the linkage component are all fixedly connected to the grounding switch main shaft. The grounding switch main shaft is located at the lower end of the switch housing.

2. The electric isolation device of an integrated wind power circuit breaker according to claim 1, characterized in that: The electric assembly comprises a motor and a motor mounting plate, wherein the motor and the motor mounting plate are fixedly connected by bolts, and the motor mounting plate and the switch housing are fixedly connected by bolts.

3. The electric isolation device of an integrated wind power circuit breaker according to claim 2, characterized in that: The transmission assembly comprises a main gear, a two-way clutch and a clutch gear, and the clutch gear is fixedly connected to the main gear via the two-way clutch.

4. The electric isolation device of an integrated wind power circuit breaker according to claim 3, characterized in that: The transmission assembly also includes a driven gear, the inner hole of which is a V-shaped structure, and which is arranged on the main shaft of the grounding switch. The driven gear is meshingly connected with the clutch gear.

5. The electric isolation device of an integrated wind power circuit breaker according to claim 3, characterized in that: The main gear is arranged on one side of the electric component, and the main gear is fixedly connected to the left side of the motor.

6. The electric isolation device of an integrated wind power circuit breaker according to claim 1, characterized in that: The positioning assembly comprises a retaining ring and a spacer sleeve, wherein the retaining ring and the spacer sleeve are fixedly connected to the main shaft of the grounding switch, and the retaining ring and the spacer sleeve restrict the driven gear in the transmission assembly to a fixed position on the main shaft of the grounding switch.

7. The electric isolation device of an integrated wind power circuit breaker according to claim 6, characterized in that: The positioning assembly further comprises an auxiliary support and a flange bearing, wherein the flange bearing is reversely mounted on the auxiliary support, and the auxiliary support is fixedly connected to the main shaft of the grounding switch.

8. The electric isolation device of an integrated wind power circuit breaker according to claim 1, characterized in that: The linkage assembly comprises an isolating switch main shaft and a grounding switch main shaft. The isolating switch main shaft and the grounding switch main shaft are both arranged on the switch housing and are distributed up and down.

9. The electric isolation device of an integrated wind power circuit breaker according to claim 8, characterized in that: The linkage assembly also includes an isolation linkage crank arm, a ground knife linkage crank arm and a connecting plate. The isolation linkage crank arm is fixedly connected to the main shaft of the isolation switch, and the ground knife linkage crank arm is fixedly connected to the main shaft of the grounding switch. The two ends of the connecting plate are respectively connected to the isolation linkage crank arm and the ground knife linkage crank arm in a hinged form.

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