CN112397261B - Universal wheel for supporting insulator and supporting insulator - Google Patents

Abstract

The invention relates to a universal wheel of a supporting insulator and the supporting insulator, wherein the universal wheel of the supporting insulator comprises: the sleeve body is used for being fixed on a supporting body of the supporting insulator; the ball seat is assembled inside the sleeve body in a moving mode along the axial direction of the sleeve body; the ball is arranged on the ball seat in a rolling way; the gland is fixed at the orifice at the outer end of the sleeve body; the gland is provided with a ball hole for the ball to extend out of the gland, and the diameter of the orifice at the outer end of the ball hole is smaller than that of the ball so as to prevent the ball from falling off the sleeve body; the pressure spring is arranged between the ball seat and the sleeve body or the pressure spring seat arranged in the sleeve body in a pressing and assembling mode so as to provide elastic supporting force towards the outer end of the sleeve body for the ball seat. When the universal wheel of the supporting insulator is connected to the supporting body and forms the supporting insulator together with the supporting body, the supporting insulator can meet the requirements that when the conducting rod is horizontally arranged, vibration can be absorbed in the radial direction of the conducting rod, and the conducting rod moves in the axial direction.

Description

A universal wheel supporting insulator, supporting insulator

technical field

The invention relates to a universal wheel supporting an insulator and a supporting insulator.

Background technique

In the prior art, conductive rods in gas-insulated metal-enclosed switchgear (GIS) or gas-insulated transmission lines (GIL) are supported and positioned in the housing by insulators. When the conductive rod is arranged horizontally, the insulator needs to meet the following requirements: 1) It can absorb the vibration of the conductive rod in the radial direction of the conductive rod to prevent the insulator from being damaged due to collision when it is subjected to vibration; 2) It can move in the axial direction of the conductive rod to prevent The conductive rod is deformed due to thermal expansion and contraction.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a universal wheel for supporting the insulator, so that the insulator can meet the requirements of absorbing vibration in the radial direction of the conductive rod and moving in the axial direction of the conductive rod when the conductive rod is arranged horizontally; the purpose of the present invention is to provide The utility model relates to a supporting insulator to meet the requirements of absorbing vibration in the radial direction of the conductive rod and moving in the axial direction of the conductive rod when the conductive rod is arranged horizontally.

The universal wheel supporting the insulator of the present invention adopts the following technical solutions:

The universal wheel supporting the insulator includes:

The sleeve body is used to be fixed on the support body supporting the insulator;

The ball seat moves along the axial direction of the sleeve body and is assembled inside the sleeve body;

Ball, rolling assembly on the ball seat;

The gland is fixed at the outer end orifice of the sleeve body; the gland is provided with a ball hole for the ball to protrude outside the gland, and the diameter of the outer end of the ball hole is smaller than the diameter of the ball to prevent The ball comes out of the sleeve;

The compression spring is press-fitted between the ball seat and the sleeve body or the compression spring seat provided in the sleeve body, so as to provide an elastic support force for the ball seat toward the outer end of the sleeve.

The beneficial effects of the present invention are: when in use, the universal wheel supporting the insulator is fixed on the supporting body supporting the insulator through the sleeve body; when the conductive rod is arranged in the horizontal direction, the ball is pressed against the conductive rod by the elastic supporting force of the compression spring Between the outer shell and the ball seat, the sleeve body does not contact the outer shell of the conductive rod, and the ball can roll along the outer shell of the conductive rod. When the conductive rod vibrates in the radial direction, it is absorbed by the expansion and contraction of the compression spring. Vibration prevents the support insulator from being damaged due to collision; when the conductive rod expands and contracts, the ball rolls axially along the outer shell of the conductive rod, and drives the support body supporting the insulator and the conductive rod to move axially to prevent the conductive rod from occurring. Deformation; To sum up, when the universal wheel supporting the insulator is connected to the support body and the support body forms the support insulator, the support insulator can meet the requirements of absorbing vibration in the radial direction of the conductive rod when the conductive rod is arranged horizontally, Axial movement of the rod is required. In addition, when the length of the casing is too long, for example, when the length of the casing exceeds 18 meters, the conductive rod can be positioned on the supporting insulator first, and then the conductive rod and the supporting insulator can be pushed into the casing by the universal wheel supporting the insulator. That is, the support insulator is used as a roller skating tool.

As a preferred technical solution, the ball seat includes a support shoe and balls arranged in the support shoe.

Beneficial effect: the ball can reduce the friction between the support shoe and the ball, and make the support insulator move better when the conductive rod expands and contracts.

As a preferred technical solution, the inner side of the gland is provided with a surrounding wall that guides the reciprocating movement of the ball seat.

Beneficial effects: The ball seat can be stably reciprocated through the guide of the surrounding wall of the gland to the ball seat.

As a preferred technical solution, the compression spring is press-fitted between the ball seat and the compression spring seat provided in the sleeve body, and the outside of the compression spring seat is provided with an external thread for threaded connection with the sleeve body; The compression spring seat is provided with a compression spring seat adjustment structure, which is used for cooperating with a compression spring seat adjustment tool to screw the compression spring seat to realize the position adjustment of the compression spring seat in the axial direction of the support body; the inner end of the sleeve body is provided with Adjustment hole for the compression spring seat adjustment tool to extend into the sleeve body.

Beneficial effect: In this way, the compression spring seat can be adjusted according to the weight of the conductive rod, so that the compression spring seat is pressed against the compression spring, and the ball is kept in the state of sticking out of the sleeve body.

As a preferred technical solution, the outside of the gland is provided with external threads for threaded connection with the sleeve body; the gland is also provided with a gland adjustment structure for cooperating with a gland adjustment tool to screw and press The cover enables the gland to be screwed in or out of the sleeve;

The outer part of the sleeve body is provided with an external thread, which is used for threaded connection with the support body supporting the insulator to realize the fixing of the sleeve body on the support body; the inner end of the sleeve body is provided with a sleeve body adjustment structure for connecting with the sleeve body adjustment tool The outer end of the sleeve body is screwed into or out of the mounting hole on the supporting body where it is located by screwing the sleeve body.

Beneficial effect: when the conductive rod is arranged in the vertical direction, the ball is completely inserted into the casing by rotating the gland, and the ball is not in contact with the outer casing of the conductive rod at this time, and the outer end of the casing is screwed into the casing using a casing adjusting tool Or unscrew the mounting hole on the supporting body where it is located, the supporting insulator is locked in the axial direction of the conductive rod, which can play the role of axial support and radial positioning for the conductive rod, making the supporting insulator universal.

The support insulator of the present invention adopts the following technical solutions:

Support insulators, including:

a support body, the support body is provided with conductive rod holes for inserting the conductive rods into the support body and at least three installation holes are arranged at intervals along its circumferential direction;

The universal wheel is installed in the installation hole and used to support the support body;

The universal wheel includes: a sleeve body, which is used to be fixed on the support body supporting the insulator;

The ball seat moves along the axial direction of the sleeve body and is assembled inside the sleeve body;

Ball, rolling assembly on the ball seat;

The gland is fixed at the outer end orifice of the sleeve body; the gland is provided with a ball hole for the ball to protrude outside the gland, and the diameter of the outer end of the ball hole is smaller than the diameter of the ball to prevent The ball comes out of the sleeve;

The compression spring is press-fitted between the ball seat and the sleeve body or the compression spring seat provided in the sleeve body, so as to provide an elastic support force for the ball seat toward the outer end of the sleeve.

The beneficial effects of the present invention are: when the conductive rod is arranged in the horizontal direction, the ball is pressed between the outer shell of the conductive rod and the ball seat by the elastic supporting force of the compression spring, and the sleeve body does not contact the outer shell of the conductive rod , the ball can roll along the outer shell of the conductive rod. When the conductive rod vibrates in the radial direction, the vibration is absorbed by the expansion and contraction of the compression spring to prevent the support insulator from being damaged due to collision; when the conductive rod expands and contracts, the ball along the The outer shell of the conductive rod rolls axially, and drives the support body and the conductive rod supporting the insulator to move axially to prevent the conductive rod from being deformed. The requirement for the rod to absorb vibration radially and to move in the axial direction of the conductive rod. In addition, when the length of the casing is too long, for example, when the length of the casing exceeds 18 meters, the conductive rod can be positioned on the supporting insulator first, and then the conductive rod and the supporting insulator can be pushed into the casing by the universal wheel supporting the insulator. That is, the support insulator is used as a roller skating tool.

As a preferred technical solution, the ball seat includes a support shoe and balls arranged in the support shoe.

Beneficial effect: the ball can reduce the friction between the support shoe and the ball, and make the support insulator move better when the conductive rod expands and contracts.

As a preferred technical solution, the inner side of the gland is provided with a surrounding wall that guides the reciprocating movement of the ball seat.

Beneficial effects: The ball seat can be stably reciprocated through the guide of the surrounding wall of the gland to the ball seat.

As a preferred technical solution, the compression spring is press-fitted between the ball seat and the compression spring seat provided in the sleeve body, and the outside of the compression spring seat is provided with an external thread for threaded connection with the sleeve body; The compression spring seat is provided with a compression spring seat adjustment structure, which is used for cooperating with a compression spring seat adjustment tool to screw the compression spring seat to realize the position adjustment of the compression spring seat in the axial direction of the support body;

The inner end of the sleeve body is provided with an adjustment hole, which is used for a compression spring seat adjustment tool to extend into the sleeve body.

Beneficial effect: In this way, the compression spring seat can be adjusted according to the weight of the conductive rod, so that the compression spring seat is pressed against the compression spring, and the ball is kept in the state of sticking out of the sleeve body.

As a preferred technical solution, an operator hole is provided on the support body at a position corresponding to the universal wheel, which is used for a compression spring seat adjusting tool to extend into the sleeve body.

Beneficial effects: the arrangement of the operator hole can realize the adjustment of the position of the compression spring seat in the radial direction of the support body when the support insulator is installed into the housing.

As a preferred technical solution, the outside of the gland is provided with external threads for threaded connection with the sleeve body; the gland is also provided with a gland adjustment structure for cooperating with a gland adjustment tool to screw and press The cover enables the gland to be screwed in or out of the sleeve;

The outer part of the sleeve body is provided with an external thread, which is used for threaded connection with the support body supporting the insulator to realize the fixing of the sleeve body on the support body; the inner end of the sleeve body is provided with a sleeve body adjustment structure for connecting with the sleeve body adjustment tool The outer end of the sleeve is screwed into or out of the mounting hole on the support body where it is used to screw the sleeve body;

The supporting body is provided with an operator hole at the position corresponding to the universal wheel, which is used for extending the casing body adjusting tool to adjust the position of the casing body in the radial direction of the supporting body.

Beneficial effect: when the conductive rod is arranged in the vertical direction, the ball is completely inserted into the casing by rotating the gland, and the ball is not in contact with the outer casing of the conductive rod at this time, and the outer end of the casing is screwed into the casing using a casing adjusting tool Or unscrew the mounting hole on the supporting body where it is located, the supporting insulator is locked in the axial direction of the conductive rod, which can play the role of axial support and radial positioning for the conductive rod, making the supporting insulator universal.

As a preferred technical solution, three conductive rod holes are evenly spaced around the axis of the support body.

Beneficial effect: realize the three-phase common box of the conductive rod.

Description of drawings

1 is a perspective view of a specific embodiment 1 of a universal wheel supporting an insulator of the present invention;

Fig. 2 is a perspective view of Fig. 1 from another perspective;

Fig. 3 is the front view of the specific embodiment 1 of the universal wheel supporting the insulator of the present invention;

Fig. 4 is A-A sectional view of Fig. 3;

5 is a perspective view of a specific embodiment of the support insulator of the present invention;

6 is a front view of a specific embodiment of the support insulator of the present invention;

7 is a sectional view taken along the line B-B of FIG. 6;

Fig. 8 is the front view of the support body in Fig. 5;

Fig. 9 is the C-C direction sectional view of Fig. 8;

Figure 10 is a perspective view of the metal ring in Figure 5;

Fig. 11 is a perspective view of the use state of the support insulator in Fig. 5;

Figure 12 is a front view of the support insulator in use state in Figure 5;

FIG. 13 is a cross-sectional view taken along the line D-D in FIG. 12 .

In the figure: 1-ball; 2-press cover; 3-support shoe; 4-ball; 5-compression spring; 6-compression spring seat; 7-adjustment hole; 8-sleeve body; 9-shell; 10-support Body; 11- Conductive Rod; 13- Metal Ring; 14- Insulator; 21- Wall; 22- Flange; 71- Polygon Section; 72- Insert Section; 81- Large Aperture Section; 82- Small Aperture Section; 83 -Step surface; 91-Flange plate; 100-Universal wheel; 101-Threaded hole; 102-Operator hole; 103-Conductive rod hole.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention, that is, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

It should be noted that relational terms such as the terms "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The features and performances of the present invention will be further described in detail below in conjunction with the embodiments.

The specific embodiment 1 of the universal wheel supporting the insulator of the present invention:

As shown in FIGS. 1 to 4 , the universal wheel supporting the insulator includes a sleeve body 8 . In this embodiment, the inner hole of the sleeve body 8 is a stepped hole with a large-diameter section 81 and a small-diameter section 82 , and the large-diameter section 81 is a stepped hole. The outer diameter is larger than the outer diameter of the small aperture section 82 . As shown in FIG. 5 to FIG. 7 , the inner end of the sleeve body 8 used for connecting with the support body 10 supporting the insulator is the inner end, and the end of the casing close to the outside of the conductive rod is the outer end, then the large aperture section 81 The small aperture section 82 is arranged close to the inner end of the sleeve body 8 . The outer circumference of the large aperture section 81 is provided with a first external thread (not shown in the figure) for connecting with the outer casing of the conducting rod, and the outer circumference of the small aperture section 82 is provided with a second external thread for connecting with the outer casing of the conductive rod. The support body 10 supporting the insulator in FIG. 5 is screwed together.

As shown in FIG. 4 , the universal wheel supporting the insulator also includes an arc-shaped support shoe 3 . The support shoe 3 moves along the axial direction of the sleeve body 8 and is assembled inside the sleeve body 8 . The support shoe 3 is provided with a plurality of balls along its circumference. 4 (only one ball is shown in FIG. 4 ), the ball 1 is rolled and assembled on the support shoe 3 through the ball 4 , and the friction between the ball 1 and the support shoe 3 can be reduced by the ball 4 . The above-mentioned support shoe 3 and each ball 4 together constitute the ball seat in this embodiment. In order to prevent the balls 4 from falling out of the support shoe 3, flanges 22 facing the axis of the sleeve body 8 are respectively provided at both ends of the support shoe 3 in the circumferential direction. The ball 4 is limited and will not rub against the ball 1.

As shown in Figures 1 and 4, the universal wheel supporting the insulator also includes a gland 2. In this embodiment, the gland 2 is threadedly connected to the outer port of the sleeve body 8, and the gland 2 is provided with a ball hole. , the ball 1 is disposed outside the gland 2 , and the diameter of the opening formed by the ball hole at the outer end surface of the gland 2 is smaller than the diameter of the ball 1 to prevent the ball 1 from falling out of the sleeve 8 .

The outer end face of the gland 2 is also provided with a gland adjustment structure. The gland adjustment structure in this embodiment is two connecting holes (not shown in the figure) spaced along the radial direction of the gland 2. When in use, the gland The adjusting tool is inserted into the two connecting holes, and simultaneously applies force along the circumferential direction of the sleeve body 8 to the two connecting holes to rotate the gland 2 to adjust the position of the gland 2 in the axial direction of the sleeve body 8 . The gland adjusting tool in this embodiment can be composed of two rods. When in use, the two rods are respectively inserted into the connecting holes. In order to prevent the rods from rotating in the connecting holes, the connecting holes can be set as polygonal holes. Polygonal structures that fit into polygonal holes.

As shown in FIG. 4 , a compression spring seat 6 is assembled in the sleeve body 8. Specifically, an external thread is provided on the outside of the compression spring seat 6. The compression spring seat 6 is threadedly connected inside the sleeve body 8, and the compression spring seat 6 is connected to the support shoe A compression spring 5 is press-fitted between 3 , and an elastic supporting force toward the outer end of the sleeve body 8 is provided to the support shoe 3 by the compression spring 5 . The small aperture section 82 of the sleeve body 8 can play the role of guiding the compression spring 5 .

As shown in FIG. 4 , the inner side of the gland 2 is provided with a surrounding wall 21 for guiding the reciprocating movement of the ball seat. Reciprocating movement for guidance.

As shown in FIGS. 2 and 4 , in this embodiment, the inner end of the sleeve body 8 is provided with an adjustment hole 7 that communicates with the inner hole. The adjustment hole 7 includes a polygonal hole section 71 and an insertion section 72 with a polygonal cross-section. The polygonal hole The segment 71 is arranged away from the outer end of the sleeve body 8 , and the insertion segment 72 is arranged close to the outer end of the sleeve body 8 . The polygonal hole section 71 in this embodiment is a regular hexagonal hole section, which is used to fit with the sleeve body adjustment tool, so that the sleeve body 8 can be screwed by the sleeve body adjustment tool to realize the support body 10 of the sleeve body 8 shown in FIG. 5 . For radial position adjustment, the polygonal segments constitute the sleeve body adjustment structure. Specifically, the sleeve body adjustment tool may be an outer hexagonal wrench and other adjustment rods with an outer hexagonal structure.

The end of the compression spring seat 6 away from the compression cover 2 is provided with a compression spring seat adjustment structure for cooperating with a compression spring seat adjustment tool to adjust the position of the compression spring seat 6 in the axial direction of the sleeve body 8 . Specifically, the compression spring seat adjustment structure is a hexagonal hole (not shown in the figure) provided on the inner end surface of the compression spring seat, and the compression spring seat adjustment tool is an outer hexagonal wrench adapted to the hexagonal hole. The polygonal hole section 71 and the inserting section 72 in FIG. 4 form an adjustment hole for the outer hexagonal wrench to extend into the sleeve body 8 .

The above-mentioned insertion section 72 is a circular hole section, and the diameter of the insertion section 72 is smaller than the diameter of the small aperture section 82 of the sleeve body 8, so that the part of the sleeve body 8 with the insertion section 72 can play a role in the compression spring seat 6. The blocking function prevents the compression spring 5 from pushing the compression spring seat 6 out of the sleeve body 8 in the direction toward the inner part of the sleeve body 8 under unexpected circumstances.

In addition, when the weight of the conductive rod changes or the inner diameter of the casing changes, it is necessary to adjust the length of the ball 1 protruding from the outer end surface of the sleeve body 8. At this time, the compression spring seat 6 can be screwed into the small aperture section of the sleeve body 8 first. , so that the compression spring 5 is in a loose state, and then adjust the position of the compression cover 2 to make the ball 1 in a proper working state. When adjusting the position of the pressure cover 2 , the pressure spring 5 is in a loose state by adjusting the pressure spring seat 6 , which is beneficial to the adjustment of the position of the pressure cover 2 .

The specific assembly process of the universal wheel supporting the insulator of the present invention:

When installing, first screw the compression spring seat 6 into the sleeve body 8, then install the compression spring 5, the support tile 3, the ball 4 and the ball 1 in sequence, and finally screw the compression cover 2 onto the sleeve body 8. At this time The preliminary installation of the universal wheel supporting the insulator is completed; after that, the installed universal wheel supporting the insulator is loaded into the support body 10 of FIG. 5 to form the support insulator shown in FIG. 5 to FIG. The conductive rod hole 103 for the conductive rod to pass through, and an operator hole 102 is reserved on the support insulator for adjusting the sleeve body 8 and the compression spring seat 6 by inserting the sleeve body adjustment tool and the compression spring seat adjustment tool. In specific use, different adjustment methods are used to make the supporting insulator have the following two working states:

Working state 1: This state is used when the conductive rod is installed horizontally. As shown in FIGS. 11 to 13 , the bus bar at this time includes a housing 9 , flanges 91 are provided at both axial ends of the housing 9 , and conductive rods 11 and supporting insulators are provided in the housing 9 .

At this time, the outer end surface of the pressure cover 2 is flush with the outer end surface of the sleeve body 8, and the ball 1 is in a rotatable and flexible state. According to the weight of the conductive rod 11, use the compression spring seat adjustment tool to adjust the compression spring seat 6, so that the compression spring 5 is pressed against On the support tile 3. After a certain compression of the compression spring 5, the outer end surface of the support tile 3 is tightly buckled into the surrounding wall 21 of the gland 2, and the ball 1 is pressed between the gland 2 and the support tile 3 by the pressure of the compression spring 5, but the ball 1 It will not be locked and can still be rotated; at this time, the supporting insulator has two functions: first, when the universal wheel supporting the insulator receives the electric power from the radial direction of the conductive rod 11, the compression spring 5 can effectively absorb the electric force along the conductive rod 11. The electric power in the radial direction of the rod 11 prevents the support insulator from being damaged by vibration; secondly, when the conductive rod 11 expands and contracts with heat, the universal wheel supporting the insulator rolls, and drives the support insulator and the conductive rod 11 in the housing 9 The inside moves along the axial direction to prevent the conductive rod 11 from being deformed due to thermal expansion and contraction.

Working state 2: This state is used when the conductive rod is installed vertically. The difference between the busbar at this time and the busbar in Fig. 11 is that the fixing block is welded to the outside of the housing 9, and a blind hole (not shown in the figure) that penetrates the housing and extends into the fixing block is opened on the housing. The blind hole in the example is an internal threaded hole; when in use, the first external thread of the sleeve body 8 is threaded in the blind hole to ensure the stable connection between the supporting insulator and the housing 9, and the conductive rod 11 is inserted into the supporting insulator in the vertical direction. inside the conductive rod hole 103.

Before the supporting insulator is loaded into the housing 9, use the compression spring seat adjustment tool to adjust the compression spring seat 6 to make the compression spring 5 begin to relax; then rotate the compression cover 2, the compression cover 2 presses the ball 1, and the ball 1 drives the ball 4 and the supporting shoe 3 is retracted into the inner hole of the sleeve body 8, when the support tile 3 contacts the stepped surface 83 between the large aperture section 81 and the lower aperture section of the sleeve body 8, it cannot continue to be screwed inward, and the outer end surface of the gland 2 is located at The inner side of the outer end face of the sleeve body 8, at this time most of the ball 1 enters the large aperture section 81 of the sleeve body 8, and a small part extends out of the sleeve body 1; use the sleeve body adjustment tool to adjust the sleeve body 8, so that the universal direction of the supporting insulator is The wheel begins to be unscrewed from the support body 10, and the sleeve body 8 is screwed into the blind hole of the casing 9 outside the conductive rod, and is threadedly connected with the blind hole and locked on the casing 9. At this time, the supporting insulator is in a locked state, which can The conductive rods 11 are radially positioned.

In addition, a contact finger groove is arranged in the conductive rod hole 103, and a spring contact finger is installed in the contact finger groove. The frictional force positions the conductive rod 11 axially. In the prior art, a fixed insulator is usually arranged at the end of the guide rod, and the guide rod is axially positioned by the fixed insulator, and the support insulator of the present invention can realize the shaft of the guide rod through the spring contact finger arranged inside the insulator. Therefore, the fixed insulator at the end of the guide rod can be omitted, thereby saving the cost of the busbar in the gas-insulated equipment.

It should be noted that when the supporting insulator is in the working state 2, the stepped surface 83 between the large aperture section 81 and the lower aperture section of the sleeve body 8 and the gland 2 limit the ball 1 and the supporting tile 3 together, so that the ball 1 is stably maintained in the state that most of it is retracted inside the sleeve body 8.

To sum up, when the universal wheel supporting the insulator is connected to the supporting body 10 and the supporting body 10 forms the supporting insulator together, the supporting insulator can be locked to the casing 9 in the vertical direction when the conductive rod 11 is arranged vertically. In addition, when the conductive rod 11 is arranged horizontally, the support insulator has the versatility to absorb vibration in the radial direction of the conductive rod 11 and move in the axial direction of the conductive rod 11 .

When it is necessary to adjust the compression spring seat 6 and the sleeve body 8, the above-mentioned operator hole 102 is used as an operation window, and the operator hole 102 can also be used as a clip-on part for a human hand or a tool to be inserted when carrying and supporting the insulator; the above-mentioned The busbar can be a GIS busbar or a GIL transmission line.

The specific embodiment 2 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned Embodiment 1 is that in the above-mentioned Embodiment 1, balls are provided between the support shoe and the ball, so as to reduce the friction between the ball and the support shoe. In this embodiment, no balls are arranged between the support tile and the ball. At this time, the surface of the support tile used to cooperate with the ball should meet certain roughness requirements, so that when the conductive rod is arranged horizontally, the ball can roll along the support tile; The two ends of the tile in the circumferential direction may not be provided with flanges. In this case, grooves adapted to each ball are provided on the side of the support tile close to the ball, and the balls are limited by the groove walls of the groove.

The specific embodiment 3 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned Embodiment 1 is that: in the above-mentioned Embodiment 1, the pressure cover is provided with a surrounding wall, and both ends of the pressure cover in the circumferential direction are pressed against the surrounding wall. In this embodiment, the gland is not provided with a surrounding wall, and the two circumferential ends of the support tile are directly pressed against the inner end surface of the gland; the support tile can also be composed of a support cylinder with a rectangular cross-section, passing through the four cylinder sides of the support cylinder. The wall and the bottom wall of the cylinder support and limit the ball seat.

The specific embodiment 4 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned first embodiment is that the position of the compression spring seat in the above-mentioned first embodiment can be adjusted along the axial direction of the sleeve body, so that the support insulator can be applied to guide rods of different weights. In this embodiment, the same support insulator can only be used to support the conductive rods of the same weight range. At this time, the elastic support force of the compression spring is determined, and there is no need to adjust the position of the compression spring seat along the axial direction of the sleeve body. The outside of the seat may not be provided with external threads, and the compression spring seat and the sleeve body are directly fixed by welding or riveting. At this time, it is not necessary to set the compression spring seat adjustment structure on the compression spring seat; the elastic support force of the compression spring is determined and does not need to be In the case of adjustment, the compression spring can also be directly press-fitted between the hole bottom of the inner hole of the sleeve body and the ball seat, and the compression spring seat is no longer provided.

The specific embodiment 5 of the universal wheel supporting the insulator of the present invention:

The main difference from the above-mentioned first embodiment is that the support insulator in the above-mentioned first embodiment can be used to support both the horizontally arranged guide rods and the vertically arranged conductive rods. In this embodiment, the support insulator is only used to support the horizontally arranged conductive rods, and is not suitable for the positioning of the vertically arranged conductive rods. In this case, it is not necessary to adjust the axial position of the gland relative to the sleeve body and the relative support of the sleeve body. If the radial position of the body, the external thread of the gland may not be set, and the first external thread and the second external thread may not be set on the sleeve body, and the gland and the sleeve body are directly fixed by welding or riveting, and the sleeve body and the support body pass through Welding or bonding and fixing; the sleeve body does not need to be provided with a sleeve body adjustment structure, and the gland does not need to be provided with a gland adjustment structure.

The specific embodiment 6 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned Embodiment 1 is that the inner hole of the sleeve body in the above-mentioned Embodiment 1 is a stepped hole. In this embodiment, the inner hole of the sleeve body is a through hole with the same diameter along the axial direction of the sleeve body. At this time, a convex block facing the axis of the sleeve body can be arranged in the inner hole, and the support insulator can pass through the convex block when the supporting insulator is in the working state 2. The block and the gland together limit the ball and the ball seat.

The specific embodiment 7 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned first embodiment is that: in the above-mentioned embodiment 1, the adjustment hole includes a polygonal hole section and an insertion section, and the diameters of the polygonal hole section and the insertion section are different. In this embodiment, the adjustment hole is a through hole with the same diameter along the axial direction of the sleeve body, and the through hole is a polygonal hole, which is used to connect with the sleeve body adjustment tool; The hexagonal structure is used to connect with the sleeve body adjustment tool, and the outer hexagonal structure constitutes the sleeve body adjustment structure.

The specific embodiment 8 of the universal wheel supporting the insulator of the present invention:

The main difference between it and the above-mentioned Embodiment 1 is that: in the above-mentioned Embodiment 1, the blind hole is an internally threaded hole, and in this embodiment, the blind hole is an optical hole. There is no need to set the first external thread.

The specific embodiment of the support insulator of the present invention:

As shown in FIG. 5 to FIG. 7 , the support insulator includes a support body 10 , and three mounting holes are arranged on the support body 10 at intervals along its circumferential direction; the support body 10 in this embodiment includes the insulator 14 shown in FIGS. 8 and 9 . , and the metal ring 13 shown in FIG. 10 embedded in the outer periphery of the insulator 14 , the metal ring 13 is specifically an aluminum ring. The insulator 14 is provided with a conductive rod hole 103 and an operator hole 102 for the conductive rod 11 to be inserted into. The metal ring 13 is provided with a threaded hole 101. The second external thread of the sleeve body 8 is connected to the threaded hole 101. The threaded hole 101 constitutes The mounting hole of the support body 10 and the threaded hole 101 communicate with the operator hole 102 when the metal ring 13 is embedded on the insulator 14 .

The above insulator 14 is cast with epoxy resin. When making the support body 10 , epoxy resin is poured inside the metal ring 13 , and the insulator 14 is formed after the epoxy resin is solidified.

The support insulator further includes three universal wheels 100 shown in FIGS. 1 to 4 , and the three universal wheels 100 are installed in the three mounting holes of the support body 10 in a one-to-one correspondence. The structure of the universal wheel 100 in this embodiment is the same as that of the universal wheel 100 for supporting an insulator described in the specific embodiment 1 of the above-mentioned universal wheel 100 for supporting an insulator, and details are not repeated here.

As shown in FIG. 11 to FIG. 13 , in this embodiment, three conductive rod holes 103 are evenly spaced along the outer circumference of the axis of the support body 10 for insertion of three-phase conductive rods; the threaded holes 101 are also spaced along the outer circumference of the axis of the support body 10 . There are three evenly distributed, and the universal wheel 100 is connected to each threaded hole 101 .

In other embodiments, the universal wheel that supports the insulator in any of the above-mentioned Embodiments 2-8 can also be used as the universal wheel; only one conductive rod hole can be provided on the support body. At this time, the three phases of the busbar are respectively It is arranged in three different shells and is a three-phase sub-box bus; the threaded holes on the support body can also be arranged at intervals of more than four along the circumferential direction of the support body.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention is subject to the claims. Any equivalent structural changes made by using the contents of the description and drawings of the present invention, Similarly, all should be included in the protection scope of the present invention.

Claims (10)

1. A universal wheel supporting an insulator, characterized in that it includes: The sleeve body is used to be fixed on the support body supporting the insulator; The ball seat moves along the axial direction of the sleeve body and is assembled inside the sleeve body; Ball, rolling assembly on the ball seat; The gland is fixed at the outer end orifice of the sleeve body; the gland is provided with a ball hole for the ball to protrude outside the gland, and the diameter of the outer end of the ball hole is smaller than the diameter of the ball to prevent The ball comes out of the sleeve; A compression spring, which is press-fitted between the ball seat and the sleeve body or the compression spring seat provided in the sleeve body, so as to provide elastic support for the ball seat toward the outer end of the sleeve; The outside of the gland is provided with external threads for threaded connection with the sleeve body; the gland is also provided with a gland adjustment structure for cooperating with a gland adjustment tool to screw the gland to screw the gland in or unscrew the sleeve; The outer part of the sleeve body is provided with an external thread, which is used for threaded connection with the support body supporting the insulator to realize the fixing of the sleeve body on the support body; the inner end of the sleeve body is provided with a sleeve body adjustment structure for connecting with the sleeve body adjustment tool The outer end of the sleeve body is screwed into or out of the mounting hole on the supporting body where it is located by screwing the sleeve body. 2 . The universal wheel for supporting an insulator according to claim 1 , wherein the ball seat comprises a support shoe and a ball provided in the support shoe. 3 . 3 . The universal wheel for supporting an insulator according to claim 1 or 2 , wherein the inner side of the gland is provided with a surrounding wall that guides the reciprocating movement of the ball seat. 4 . 4. The universal wheel for supporting an insulator according to claim 1 or 2, wherein the compression spring is press-fitted between the ball seat and the compression spring seat provided in the sleeve body, and the compression spring seat There is an external thread on the outside for screw connection with the sleeve body; the compression spring seat is provided with a compression spring seat adjustment structure, which is used to cooperate with the compression spring seat adjustment tool to screw the compression spring seat to realize the compression spring seat in the support. Body axis position adjustment; The inner end of the sleeve body is provided with an adjustment hole for the compression spring seat adjustment tool to extend into the sleeve body. 5. A support insulator, characterized in that it includes: a support body, the support body is provided with conductive rod holes for insertion of the conductive rods; the support body is provided with at least three installation holes at intervals along its circumferential direction; The universal wheel is installed in the installation hole and used to support the support body; The universal wheel includes: a sleeve body, which is used to be fixed on the support body supporting the insulator; The ball seat moves along the axial direction of the sleeve body and is assembled inside the sleeve body; Ball, rolling assembly on the ball seat; The gland is fixed at the outer end orifice of the sleeve body; the gland is provided with a ball hole for the ball to protrude out of the gland, and the diameter of the outer end of the ball hole is smaller than the diameter of the ball to prevent The ball comes out of the sleeve; A compression spring, which is press-fitted between the ball seat and the sleeve body or the compression spring seat provided in the sleeve body, so as to provide elastic support force for the ball seat toward the outer end of the sleeve; The outside of the gland is provided with external threads for threaded connection with the sleeve body; the gland is also provided with a gland adjustment structure for cooperating with a gland adjustment tool to screw the gland so that the gland is screwed in or unscrew the sleeve; The outer part of the sleeve body is provided with an external thread, which is used for threaded connection with the support body supporting the insulator to realize the fixing of the sleeve body on the support body; the inner end of the sleeve body is provided with a sleeve body adjustment structure for connecting with the sleeve body adjustment tool The outer end of the sleeve body is screwed into or out of the mounting hole on the support body where the sleeve body is screwed; The supporting body is provided with an operator hole at the position corresponding to the universal wheel, which is used for inserting the casing adjusting tool to adjust the position of the casing body in the radial direction of the supporting body. 6 . The support insulator according to claim 5 , wherein the ball seat comprises a support shoe and a ball provided in the support shoe. 7 . 7. The supporting insulator according to claim 5 or 6, characterized in that, a surrounding wall for guiding the reciprocating movement of the ball seat is provided on the inner side of the pressing cover. 8. The support insulator according to claim 5 or 6, wherein the compression spring is press-fitted between the ball seat and the compression spring seat provided in the sleeve body, and the outer part of the compression spring seat is provided with The external thread is used for threaded connection with the sleeve body; the compression spring seat is provided with a compression spring seat adjustment structure, which is used to cooperate with the compression spring seat adjustment tool to screw the compression spring seat to realize the compression spring seat in the axial direction of the support body. position adjustment; The inner end of the sleeve body is provided with an adjustment hole, which is used for a compression spring seat adjustment tool to extend into the sleeve body. 9 . The support insulator according to claim 8 , wherein an operator hole is provided on the support body at a position corresponding to the universal wheel, which is used for a compression spring seat adjusting tool to extend into the sleeve body. 10 . 10 . The support insulator according to claim 5 or 6 , characterized in that, there are three conductive rod holes evenly spaced around the axis of the support body. 11 .

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