Isolating switch bearing seat and isolating switch
By using a rotary support structure and detection components in the isolating switch, the stable connection between the insulator and the isolating switch body is ensured, which solves the problem of insulator shaking during the assembly of traditional bearing seats, and improves the rotational stability and assembly simplicity of the isolating switch.
Patent Information
- Application Number
- CN202411365606.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-01-03
AI Technical Summary
The traditional isolation switch bearing seat is prone to shake when assembling insulators, resulting in poor contact and insufficient rigidity when the isolation switch is closed.
The rotary support structure is adopted, including the outer ring, the inner ring and the rolling element. The concentricity between the outer ring and the inner ring is ensured through the detection component, and the bonding surface contact and fixing method is ensured to ensure the stable connection between the insulator and the isolating switch body.
The stability of insulator rotation is achieved, the accuracy of the isolating switch closing is improved, the assembly process is simplified, and material is saved, avoiding insulator shaking.
Smart Images
Figure CN119252700A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of isolating switches, in particular to an isolating switch bearing seat and an isolating switch. Background Art
[0002] The isolating switch bearing seat is usually installed on the GW4 and GW7F isolating switch bodies to provide rotational force for the opening and closing of the conductive parts of the isolating switch. Before the improvement, the traditional bearing seat usually uses three sets of bearings to achieve rotation, involving many parts and complex processing. In addition, the large number of assembly parts leads to cumbersome assembly process. In addition, taking the GW4 isolating switch as an example, the traditional bearing seat and the base are only assembled by four bolts, which has the defect of insufficient rigidity. When installing heavy parts such as insulators, it is easy to shake, which can easily lead to poor contact when the isolating switch is closed. Summary of the invention
[0003] The object of the present invention is to provide a disconnector bearing seat and a disconnector, which are used to solve the problem that the insulator is prone to shaking after the insulator and the disconnector body are assembled through the traditional bearing seat.
[0004] The technical solution adopted by the present invention to solve its technical problem is: the isolating switch bearing seat includes a base and a slewing bearing, the slewing bearing includes an outer ring, an inner ring and a rolling body, the inner ring and the outer ring are arranged inside and outside, the rolling body is located between the inner ring and the outer ring, and the base is fixedly connected to the outer ring.
[0005] Furthermore, it also includes a detection component, which is located between the inner ring and the outer ring and is evenly arranged along the circumferential direction, and is used to detect the relative position of the inner ring and the outer ring.
[0006] Furthermore, the detection assembly includes a shell, a detection rod and a detection spring, the edge of the inner ring has a groove, the shell is located in the groove and fixedly connected to the inner ring, the detection rod is slidably connected to the shell, and one end of the detection rod is located in the shell, the detection spring is located between one end of the detection rod and the inner wall of the shell, and when the detection spring is in a natural telescopic state, the other end of the detection rod extends out of the shell and contacts the inner wall of the outer ring; the detection spring is provided with a pressure sensor; the smaller the variance of the detection values of each pressure sensor, the higher the concentricity of the outer ring and the inner ring; the larger the variance of the detection values of each pressure sensor, the greater the degree of eccentricity of the outer ring and the inner ring.
[0007] Furthermore, the detection component includes a distance sensor, and the distance sensor is used to detect the distance between the fixed points on the outer ring and the inner ring.
[0008] Furthermore, the outer ring and / or the inner ring has a supporting flange.
[0009] Furthermore, the rolling elements are multiple groups arranged in sequence along the axial direction of the outer ring.
[0010] The present invention also provides an isolating switch comprising a bearing seat, wherein the outer ring of the slewing bearing is fixedly connected to the isolating switch body via a base, and the inner ring of the slewing bearing is fixedly connected to the bottom of the insulator.
[0011] Furthermore, the top and bottom of the base both have base flanges, the base flange at the bottom of the base is fixedly connected to the disconnector body by bolts, and the base flange at the top of the base is fixedly connected to the outer ring by bolts.
[0012] Furthermore, the bottom of the insulator has an insulator flange, and the insulator flange is fixedly connected to the inner ring by bolts.
[0013] Furthermore, there are detection components between the outer ring and the base flange at the top of the base, and between the insulator flange and the inner ring. The detection components are used to detect the relative position between the outer ring and the base flange at the top of the base, and between the insulator flange and the inner ring.
[0014] The beneficial effects of the present invention are as follows: The present invention arranges a slewing bearing between the isolating switch body and the insulator, and the slewing bearing provides stable support for the rotation of the insulator. The structure of the slewing bearing can ensure the stability of the insulator during rotation, thereby playing a role in protecting the closing accuracy of the isolating switch. The structure of the slewing bearing is simple, and the slewing bearing and the isolating switch body, and the slewing bearing and the insulator are all fixedly connected by external bolts, which is convenient for assembly. The bearing seat of the present invention has a simple structure, is convenient and concise to install, and the parts of the bearing seat are simple to process and save materials. In addition, the bearing seat and the isolating switch body are firmly fixed by a surface contact fixing method, and can provide higher rigidity to avoid shaking of the insulator after it is connected to the busbar. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front view assembly diagram of the bearing seat, insulator and disconnector body of the first embodiment of the present invention; Figure 2 It is a cross-sectional assembly diagram of the bearing seat, the insulator and the disconnector body according to the first embodiment of the present invention; Figure 3 It is a front view assembly diagram of the bearing seat, insulator and disconnector body of the second embodiment of the present invention; Figure 4 This is a front view of a bearing seat according to a second embodiment of the present invention; Figure 5 A bottom view of a bearing seat according to a second embodiment of the present invention; Figure 6 It is a cross-sectional view of a bearing seat according to Embodiment 3 of the present invention; Figure 7 It is a cross-sectional view of the detection components arranged between the bearing seat and the disconnector body, the bearing seat and the insulator, and the inside of the bearing seat; Figure 8 for Figure 7 A local enlarged view of point A in FIG. Fig. 9 for Figure 7 Top view of the middle disconnector body and outer ring; Fig.10 for Figure 7 Bottom view of the middle bearing seat; Fig.11 This is a bottom view of the inner ring and insulator; Fig.12 A cross-sectional view of the detection component; In the figure: 1 isolating switch body, 2 base, 21 base flange, 3 slewing bearing, 31 outer ring, 32 inner ring, 33 rolling element, 34 supporting flange, 35 groove, 4 insulator, 41 insulator flange, 5 bolt, 6 housing, 61 detection rod, 62 detection spring. DETAILED DESCRIPTION
[0016] like Figures 1 to 12 As shown, the slewing bearing 3 of the present invention includes an outer ring 31, an inner ring 32, a rolling element 33 and a detection assembly. The isolating switch of the present invention includes an isolating switch body 1, a slewing bearing 3 and an insulator 4. The slewing bearing 3 of the present invention and the isolating switch including the slewing bearing 3 are described in detail below in conjunction with the accompanying drawings.
[0017] Embodiment 1: like Figure 1 to Figure 2 As shown, the isolating switch of the first embodiment includes an isolating switch body 1, a bearing seat and an insulator 4, wherein the insulator 4 is located above the isolating switch body 1, and the bearing seat is located between the insulator 4 and the isolating switch body 1, and is used to realize the rotation connection between the insulator 4 and the isolating switch body 1. Specifically, as Figure 1 , Figure 2 As shown, the bearing seat includes a slewing bearing 3 and a base 2. The slewing bearing 3 includes an outer ring 31, an inner ring 32 and a rolling body 33. The inner ring 32 and the outer ring 31 are arranged inside and outside, and the rolling body 33 is located between the inner ring 32 and the outer ring 31. The base 2 is fixed to the top of the disconnector body 1. The top and bottom of the base 2 are provided with a base flange 21. The base flange 21 at the bottom of the base 2 is fixedly connected to the disconnector body 1 by bolts 5. The base flange 21 at the top of the base 2 is fixedly connected to the outer ring 31 of the slewing bearing 3 by bolts 5. The inner ring 32 of the slewing bearing 3 is fixedly connected to the insulator flange 41 at the bottom of the insulator 4 by bolts 5.
[0018] The bearing seat of the present invention is fixed by surface contact between the slewing bearing 3 and the insulator 4 through the arrangement of the base 2. The bearing seat of the present invention is fixed by surface contact between the base 2 and the isolating switch body 1, and the outer ring 31 and the base 2 are also fixed by surface contact. Therefore, the assembly between the insulator 4 and the isolating switch body 1 has good rigidity, and the insulator 4 is not easy to shake when rotating, thereby ensuring the accuracy of the isolating switch closing.
[0019] Embodiment 2: like Figures 3 to 5 , which is the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the end of the inner ring 32 has a supporting flange 34, and the inner ring 32 is fixedly connected to the insulator flange 41 at the bottom of the insulator 4 through the supporting flange 34, thereby realizing the fixed connection between the inner ring 32 and the insulator 4. The provision of the supporting flange 34 facilitates the assembly between the inner ring 32 and the insulator 4, and can ensure the contact area between the inner ring 32 and the insulator 4.
[0020] Embodiment three: like Figure 6 The third embodiment of the present invention is shown in FIG. The difference between the third embodiment and the first embodiment is that two groups of rolling bodies 33 are provided between the inner ring 32 and the outer ring 31, and the two groups of rolling bodies 33 are arranged in sequence along the axial direction of the outer ring 31. The rolling bodies 33 can also be arranged in more than three groups. The more the number of rolling bodies 33 is, the better the rolling performance between the inner ring 32 and the outer ring 31 is, and the jamming is avoided. At the same time, the wear can be reduced, and the position deviation between the inner ring 32 and the outer ring 31 can be avoided, thereby ensuring the stability of the insulator 4 when rotating.
[0021] Embodiment 4: like Figures 7 to 12 As shown, it is the fourth embodiment of the present invention. The difference between the fourth embodiment and the first embodiment is that it also includes a detection component, which is located between the inner ring 32 and the outer ring 31 and is evenly arranged along the circumferential direction, and is used to detect the relative position of the inner ring 32 and the outer ring 31. There are also detection components between the outer ring 31 and the base flange 21 at the top of the base 2, and between the insulator flange 41 and the inner ring 32. The detection component between the outer ring 31 and the base flange 21 at the top of the base 2 is used to detect the relative position between the outer ring 31 and the base flange 21 at the top of the base 2, and the detection component between the insulator flange 41 and the inner ring 32 is used to detect the relative position between the insulator flange 41 and the inner ring 32.
[0022] As an implementation of the detection component, Fig.12As shown, the detection assembly includes a housing 6, a detection rod 61 and a detection spring 62. The detection rod 61 is slidably connected to the housing 6, and one end of the detection rod 61 is located in the housing 6. The detection spring 62 is located between one end of the detection rod 61 and the inner wall of the housing 6. When the detection spring 62 is in a naturally retracted state, the other end of the detection rod 61 extends out of the housing 6. Figure 8 , Fig. 9 As shown, for the detection assembly between the outer ring 31 and the base flange 21 at the top of the base 2, the shell 6 of the detection assembly is fixedly connected to the base flange 21, and when the detection spring 62 is in a naturally retracted state, the other end of the detection rod 61 extends out of the shell 6 and contacts the inner wall of the outer ring 31. Figure 8 , Fig.10 As shown, the edge of the inner ring 32 has a groove 35. For the detection assembly between the inner ring 32 and the outer ring 31, the housing 6 of the detection assembly is located in the groove 35 and is fixedly connected to the inner ring 32. When the detection spring 62 is in a natural expansion state, the other end of the detection rod 61 extends out of the housing 6 and contacts the inner wall of the outer ring 31. Figure 8 , Fig.11 As shown, for the detection assembly between the outer ring 31 and the insulator flange 41, the housing 6 of the detection assembly is fixedly connected to the insulator flange 41. When the detection spring 62 is in a naturally telescopic state, the other end of the detection rod 61 extends out of the housing 6 and contacts the inner wall of the inner ring 32. The detection spring 62 is provided with a pressure sensor. The smaller the variance of the detection values of each pressure sensor 62 in the same group, the higher the concentricity of the outer ring 31 and the inner ring 32. At this time, the insulator 4 is stably connected to the disconnector through the bearing seat, providing a stable assembly environment for the rotation of the insulator 4. The larger the variance of the detection values of each pressure sensor in the same group, the greater the eccentricity of the outer ring 31 and the inner ring 32. At this time, it may be caused by the wear of the rolling body 33, or the loosening of the bolts 5 between the base flange 21 and the outer ring 31, or the loosening of the bolts between the inner ring 32 and the insulator flange 41.
[0023] By setting up a detection component consisting of a shell 6, a detection rod 61, a detection spring 62 and a pressure sensor, the pressure between the corresponding points of the outer ring 31 and the inner ring 32 can be detected. Different pressures between the corresponding points of the outer ring 31 and the inner ring 32 represent different distances between the corresponding points of the outer ring 31 and the inner ring 32, that is, the outer ring 31 and the inner ring 32 have different relative positions.
[0024] As another embodiment of the detection component, the detection component includes a distance sensor, which is used to detect the distance between the fixed points / corresponding points on the outer ring 31 and the inner ring 32. The relative position between the outer ring 31 and the inner ring 32 is detected by directly detecting the distance between the fixed points on the outer ring 31 and the inner ring 32. The detection result of the relative position between the outer ring 31 and the inner ring 32 represents the coaxiality / eccentricity of the outer ring 31 and the inner ring 32.
[0025] The present invention sets a slewing bearing between the isolating switch body and the insulator, and the slewing bearing provides stable support for the rotation of the insulator. The structure of the slewing bearing can ensure the stability of the insulator during rotation, thereby playing a role in protecting the closing accuracy of the isolating switch. The structure of the slewing bearing is simple, and the slewing bearing and the isolating switch body, and the slewing bearing and the insulator are fixedly connected by external bolts, which is convenient for assembly. The bearing seat of the present invention has a simple structure, is convenient and concise to install, and the parts of the bearing seat are simple to process and save materials. In addition, the bearing seat and the isolating switch body are firmly fixed by a surface contact fixing method, and can provide higher rigidity to avoid shaking of the insulator after connecting to the busbar.
Claims
1. Isolating switch bearing seat, characterized in that: It comprises a base and a slewing bearing, wherein the slewing bearing comprises an outer ring, an inner ring and a rolling body, wherein the inner ring and the outer ring are arranged inside and outside, the rolling body is located between the inner ring and the outer ring, and the base is fixedly connected to the outer ring.
2. The isolating switch bearing seat according to claim 1, characterized in that: It also includes a detection component, which is located between the inner ring and the outer ring and is evenly arranged along the circumferential direction, and is used to detect the relative position of the inner ring and the outer ring.
3. The isolating switch bearing seat according to claim 2, characterized in that: The detection assembly includes a shell, a detection rod and a detection spring. The edge of the inner ring has a groove, the shell is located in the groove and fixedly connected to the inner ring, the detection rod is slidably connected to the shell, and one end of the detection rod is located in the shell, the detection spring is located between one end of the detection rod and the inner wall of the shell, and when the detection spring is in a natural telescopic state, the other end of the detection rod extends out of the shell and contacts the inner wall of the outer ring; the detection spring is provided with a pressure sensor; the smaller the variance of the detection values of each pressure sensor, the higher the concentricity of the outer ring and the inner ring; the larger the variance of the detection values of each pressure sensor, the greater the degree of eccentricity of the outer ring and the inner ring.
4. The isolating switch bearing seat according to claim 2, characterized in that: The detection component includes a distance sensor, and the distance sensor is used to detect the distance between the fixed points on the outer ring and the inner ring.
5. The isolating switch bearing seat according to claim 1, characterized in that: The outer ring and / or the inner ring is provided with a supporting flange.
6. The isolating switch bearing seat according to claim 1, characterized in that: The rolling elements are arranged in groups in sequence along the axial direction of the outer ring.
7. An isolating switch comprising the isolating switch bearing seat according to any one of claims 1 to 6, characterized in that: The outer ring of the slewing bearing is fixedly connected to the isolating switch body through a base, and the inner ring of the slewing bearing is fixedly connected to the bottom of the insulator.
8. The isolating switch according to claim 7, characterized in that: The top and bottom of the base are both provided with base flanges. The base flange at the bottom of the base is fixedly connected to the isolating switch body by bolts, and the base flange at the top of the base is fixedly connected to the outer ring by bolts.
9. The isolating switch according to claim 7, characterized in that: The bottom of the insulator is provided with an insulator flange, and the insulator flange is fixedly connected to the inner ring by bolts.
10. The isolating switch according to claim 7, characterized in that: There are also detection components between the outer ring and the base flange at the top of the base, and between the insulator flange and the inner ring. The detection components are used to detect the relative position between the outer ring and the base flange at the top of the base, and between the insulator flange and the inner ring.