Disconnecting switch rotary base structure with rotary base

Abstract

The utility model discloses an isolating switch rotary base structure with a rotary base, relates to the technical field of isolating switch base structures, and is used for solving the problem that the operating reliability of an isolating switch is influenced by distance deviation generated by engagement of a contact and a contact finger due to deviation of an existing isolating switch base under the action of cable tension. Comprising a supporting piece, a mounting plate, a bearing and a flange plate, the mounting plate is fixed on the supporting piece, a bearing outer ring of the bearing is fixedly connected with the mounting plate, a bearing inner ring of the bearing is fixedly connected with the flange plate, and one end face of the flange plate is fixedly connected with a post insulator. The structure of the rotating base of the disconnecting switch is improved, the bearing is used for replacing a flange shaft, the rotating stability of the base of the disconnecting switch is improved, and the requirement for conductive switching-on and switching-off stability of the disconnecting switch is met. According to the utility model, the structural strength of the rotating base of the disconnecting switch is enhanced, the rotating quality is improved, and the operation reliability of opening and closing of the disconnecting switch is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switch base structures, in particular to an isolating switch rotary base structure with a rotating base. Background Art

[0002] The base is a rotating support structure under the insulator of the GW4 type double-column horizontal rotary isolating switch, GW5 type double-column V-shaped rotary isolating switch, GW7F type three-column horizontal rotary isolating switch, GW6A type single-column double-arm folding isolating switch, GW22A single-column single-arm vertical telescopic isolating switch, and GW23A double-column single-arm horizontal telescopic isolating switch. The base in the prior art is assembled by a flange shaft, a flange plate, and a bearing seat sleeve. The bearing seat sleeve is cylindrical, with a through hole in the middle, and the inner wall has a step for pressing the bearing and the sealing ring. After the flange shaft is welded to the flange plate, the flange shaft body is pressed into the bearing seat sleeve and matched with the inner ring of the bearing, and the outer ring of the bearing matches the bearing seat sleeve to fix the bearing seat sleeve, and the flange plate can rotate on the bearing seat sleeve with the flange shaft. In the prior art, the base of the isolating switch is installed on the support insulator above the base support, and a conductive part is installed above the support insulator. After the conductive terminal parts on both sides of the disconnector are connected to the cable, the cable will exert tension on the conductive parts on both sides, pulling the conductive parts sideways. The tension is transmitted to the base through the support insulators, and the flange shaft and the bearing sleeve of the base will be relatively offset. As a result, when the conductive part is closed, the contact and the contact finger will engage with each other, resulting in a distance deviation, which affects the operational reliability of the disconnector. Utility Model Content

[0003] The utility model aims to provide a rotary base structure of an isolating switch with a rotating base, which is used to solve the problem that the existing isolating switch base is offset under the action of cable tension, resulting in distance deviation between the contact and the contact finger, thereby affecting the reliability of the isolating switch operation.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a rotary base structure of an isolating switch with a rotating base, including a support, a mounting plate, a bearing and a flange, the mounting plate is fixed on the support, the bearing outer ring of the bearing is fixedly connected to the mounting plate, the bearing inner ring of the bearing is fixedly connected to the flange, and one end face of the flange is fixedly connected to the support insulator.

[0005] Furthermore, the support member is a steel section.

[0006] Furthermore, one end of the mounting plate is provided with a mounting plate protective sleeve, and the bearing is located inside the mounting plate protective sleeve.

[0007] Furthermore, the mounting plate is a circular ring structure, and the mounting plate is fixedly connected to the support member and the outer ring of the bearing by bolts.

[0008] Furthermore, the other end surface of the flange is provided with a flange protective cover, and the flange protective cover is located outside the mounting plate protective cover, with a gap therebetween.

[0009] Furthermore, a sealing ring is provided between the flange protective cover and the mounting plate protective cover.

[0010] Furthermore, the flange is fixedly connected to the inner ring of the bearing by bolts.

[0011] Furthermore, the outer side of the mounting plate protective cover has a slot, and the sealing ring is located in the slot.

[0012] Furthermore, the center of the flange is provided with a circular positioning platform, and the positioning platform is used to contact the inner wall of the bearing inner ring to achieve positioning of the bearing inner ring.

[0013] The beneficial effects of the utility model are as follows: the utility model improves the structure of the isolating switch rotating base, uses bearings instead of flange shafts, improves the rotation stability of the isolating switch base, and thus meets the requirements of the stability of the conductive opening and closing of the isolating switch. The structure of the utility model enhances the structural strength of the isolating switch rotating base, improves the rotation quality, and effectively improves the operational reliability of the isolating switch opening and closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 One of the three-dimensional assembly drawings of the support, mounting plate, flange, bearing and seal ring;

[0016] Figure 3 The second three-dimensional assembly drawing of the support, mounting plate, flange, bearing and sealing ring;

[0017] Figure 4 An exploded view of the bearing and mounting plate protective sleeve;

[0018] Figure 5 It is a three-dimensional assembly drawing of the flange protective cover, support, mounting plate and flange;

[0019] In the figure: 1 support member, 2 mounting plate, 3 flange, 31 flange protective cover, 32 positioning table, 4 bearing, 41 bearing inner ring, 42 bearing outer ring, 5 sealing ring, 6 mounting plate protective cover. DETAILED DESCRIPTION

[0020] like Figures 1 to 5 As shown, the utility model includes a support member 1, a mounting plate 2, a flange 3, a bearing 4 and a sealing ring 5. The utility model is described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5 As shown, a swivel base structure of an isolating switch with a rotating base includes a support member 1, a mounting plate 2, a bearing 4 and a flange 3. The support member 1 is a basic component of the entire swivel base structure. The support member 1 is a steel section, and the mounting plate 2 is a circular metal plate. The mounting plate 2 has mounting holes evenly arranged along the circumferential direction. Bolts are inserted into the mounting holes to achieve a fixed connection between the mounting plate 2 and the support member 1, and the bottom surface of the mounting plate 2 is in contact with the support member 1.

[0022] like Figures 2 to 4 As shown, the bearing 4 adopts a ball bearing, and the outer ring 42 of the bearing 4 is also evenly distributed with mounting holes. The bolts for fixing the mounting plate 2 and the support 1 also pass through the mounting holes on the outer ring 42 of the bearing, thereby fixing the support 1, the mounting plate 2 and the outer ring 42 of the bearing together. The inner ring 41 of the bearing 4 also has mounting holes evenly arranged along the circumference. The flange 3 is located at the top of the entire slewing base structure. The flange 3 also has mounting holes evenly arranged along the circumference, and the flange 3 corresponds to the mounting holes on the inner ring 41 of the bearing. The flange 3 is fixedly connected to the inner ring 41 of the bearing by bolts inserted into the flange 3 and the inner ring 41 of the bearing, so that the flange 3 is rotatably connected to the mounting plate 2 through the bearing 4, and the flange 3 can rotate relative to the mounting plate 2. One end face of the flange 3 is used for fixed connection with the post insulator. When the cable exerts a pulling force on the conductive part at the top of the post insulator, the pulling force is transmitted to the bearing 4. Since there is a large contact surface between the bearing 4 and the mounting plate 2, there will be no relative deflection between the bearing 4 and the mounting plate 2, thereby ensuring that the post insulator will not deflect. The slewing base has high rotational stability, and the conductive part at the top of the post insulator has good opening and closing stability.

[0023] To protect the bearing 4, Figure 3 As shown, one end surface of the mounting plate 2 has a circular mounting plate protective sleeve 6, and the bearing 4 is located inside the mounting plate protective sleeve 6. The mounting plate 2 is a circular ring structure, and the mounting plate 2 is fixedly connected to the support member 1 and the bearing outer ring 42 by bolts. Figure 2 As shown, the other end of the flange 3 has a circular flange protective cover 31, which is located outside the mounting plate protective cover 6 and there is a gap between the two. A sealing ring 5 is provided between the flange protective cover 31 and the mounting plate protective cover 6 to ensure the sealing between the flange protective cover 31 and the mounting plate protective cover 6. The mounting plate protective cover 6 has a slot on the outside, and the sealing ring 5 is located in the slot. In order to achieve the positioning of the bearing inner ring 41, as shown in FIG. Figure 5As shown, the center of the flange 3 has a circular positioning platform 32, and after the positioning platform 32 contacts the inner wall of the bearing inner ring 41, the bearing inner ring 41 is positioned. Under the cooperation of the mounting plate protective sleeve 6 and the flange protective sleeve 31, the bearing 4 is sealed between the mounting plate 2 and the flange 3, which can prevent the bearing 4 from being contaminated by the external environment (such as dust), thereby ensuring the normal working state of the bearing 4.

[0024] The utility model improves the structure of the isolating switch rotating base, uses a bearing 4 instead of a flange shaft, improves the rotation stability of the isolating switch base, and thus meets the requirements for the stability of the conductive opening and closing of the isolating switch. The structure of the utility model enhances the structural strength of the isolating switch rotating base, improves the rotation quality, and effectively improves the operational reliability of the isolating switch opening and closing.

Claims

1. A rotary base structure of an isolating switch with a rotating base, characterized in that: It includes a support, a mounting plate, a bearing and a flange. The mounting plate is fixed on the support, the outer ring of the bearing is fixedly connected to the mounting plate, the inner ring of the bearing is fixedly connected to the flange, and one end face of the flange is fixedly connected to the support insulator.

2. The isolating switch swivel base structure with a swivel base according to claim 1, characterized in that: The supporting member is a steel section.

3. The isolating switch swivel base structure with a swivel base according to claim 1, characterized in that: One end of the mounting plate is provided with a mounting plate protective sleeve, and the bearing is located inside the mounting plate protective sleeve.

4. The isolating switch swivel base structure with a swivel base according to claim 3, characterized in that: The mounting plate is a circular ring structure, and the mounting plate is fixedly connected to the support member and the outer ring of the bearing by bolts.

5. The isolating switch swivel base structure with a swivel base according to claim 4, characterized in that: The other end surface of the flange is provided with a flange protection cover, and the flange protection cover is located outside the mounting plate protection cover, with a gap therebetween.

6. The isolating switch swivel base structure with a swivel base according to claim 5, characterized in that: A sealing ring is provided between the flange protection cover and the mounting plate protection cover.

7. The isolating switch swivel base structure with a swivel base according to claim 1, characterized in that: The flange is fixedly connected to the inner ring of the bearing by bolts.

8. The isolating switch swivel base structure with a swivel base according to claim 6, characterized in that: The outer side of the mounting plate protective cover is provided with a slot, and the sealing ring is located in the slot.

9. The isolating switch swivel base structure with a swivel base according to claim 8, characterized in that: The center of the flange is provided with a circular positioning platform, and the positioning platform is used to position the inner ring of the bearing.

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