CN214753439U

CN214753439U - Split type flange of high-voltage switch shell

Info

Publication number: CN214753439U
Application number: CN202121097253.7U
Authority: CN
Inventors: 束明亮; 陈永华
Original assignee: Jiangsu Hongda Electric Co ltd
Current assignee: Jiangsu Hongda Electric Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-16
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a high-voltage switch technical field especially relates to a split type flange of high-voltage switch casing; comprises a flange sleeve, a copper sleeve and a fixing ring; a through hole structure is arranged in the flange sleeve, and the side wall of the through hole structure is conical; an annular groove is formed in the side wall of the through hole structure; the copper sleeve is arranged in the through hole structure; the outer side surface of the copper sleeve is conical, and the outer side surface of the copper sleeve is connected with the side wall of the through hole structure in an interference fit manner; the fixing ring is arranged in the groove, and the inner side of the fixing ring extends to the outer side of the groove and is abutted against the end face of the copper sleeve. The utility model aims at providing a split type flange of high tension switchgear casing to the defect that exists among the prior art, make the processing of flange more simple and convenient.

Description

Split type flange of high-voltage switch shell

Technical Field

The utility model relates to a high tension switchgear technical field especially relates to a split type flange of high tension switchgear casing.

Background

In order to reduce the friction between the rotating shaft and the high-voltage switch shell, a flange is usually mounted on the shell, and the rotating shaft rotates in the flange so as to reduce the friction.

The flange in the prior art is formed by pressing cast aluminum, the inner hole wall of the flange is in contact with the rotating shaft, the inner hole wall of the flange needs to be polished for reducing friction, dust pollution can be generated in the polishing process, the health of personnel is harmed, meanwhile, the diameter of the inner hole wall is small, polishing and processing operations are not convenient, and the production difficulty of the flange is increased.

In view of the above problems, the designer designs a split type flange of a high-voltage switch shell based on practical experience and professional knowledge which are abundant for years in engineering application of such products and by cooperating with the application of theory and actively carrying out research and innovation, so that the flange is more convenient to process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a split type flange of high tension switchgear casing to the defect that exists among the prior art, through inlaying the copper sheathing in the flange is inside, make the processing of flange more simple and convenient.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the method comprises the following steps: a flange sleeve, a copper sleeve and a fixing ring;

a through hole structure is arranged in the flange sleeve, and the side wall of the through hole structure is conical; an annular groove is formed in the side wall of the through hole structure;

the copper sleeve is arranged in the through hole structure; the outer side surface of the copper sleeve is conical, and the outer side surface of the copper sleeve is connected with the side wall of the through hole structure in an interference fit manner;

the fixing ring is arranged in the groove, and the inner side of the fixing ring extends to the outer side of the groove and is abutted to the end face of the copper sleeve.

Further, the fixing ring is a circular ring structure with a notch.

Furthermore, two ends of the fixing ring are provided with assembling and disassembling holes.

Further, the assembling and disassembling hole is arranged outside the groove.

Furthermore, the two ends of the fixing ring are provided with lugs, the width of each lug is larger than that of the ring body of the fixing ring, and the assembling and disassembling holes are formed in the lugs.

Furthermore, a limiting section is further arranged on the side wall of the through hole structure, and the limiting section is cylindrical; a guide section is arranged on the outer side of the copper sleeve, and the guide section is cylindrical; the guide section is arranged in the limiting section.

Further, the guide section lateral surface with spacing section inner wall interference fit is connected.

Further, the taper inclination of the side wall of the through hole structure and the taper inclination of the outer side face of the copper sleeve are both 0.5-3 degrees.

Through the technical scheme of the utility model, can realize following technological effect:

according to the designed split type flange of the high-voltage switch shell, the copper sleeve is arranged inside the flange sleeve, so that the flange is more convenient to process; through the fixed ring of the ring structure that sets up to have the breach, make the installation of copper sheathing, dismantle more convenient, reduce the production degree of difficulty of flange.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front sectional view of a split flange of a high-voltage switch housing in an embodiment of the present invention;

fig. 2 is a right side view of the split type flange of the high-voltage switch housing in the embodiment of the present invention;

fig. 3 is a front sectional view of a flange sleeve according to an embodiment of the present invention;

FIG. 4 is a front cross-sectional view of a copper sleeve in an embodiment of the present invention;

reference numerals: the flange sleeve comprises a flange sleeve 1, a groove 11, a limiting section 12, a copper sleeve 2, a guide section 21, a fixing ring 3, a mounting and dismounting hole 31 and a bump 32.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be noted that the orientations and positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

A split type flange of a high-voltage switch shell is shown in figures 1-4 and comprises: the flange sleeve 1, the copper sleeve 2 and the fixing ring 3; a through hole structure is arranged in the flange sleeve 1, and the side wall of the through hole structure is conical; an annular groove 11 is formed in the side wall of the through hole structure; the copper bush 2 is arranged in the through hole structure; the outer side surface of the copper sleeve 2 is conical, and the outer side surface of the copper sleeve 2 is connected with the side wall of the through hole structure in an interference fit manner; the fixing ring 3 is arranged in the groove 11, and the inner side of the fixing ring 3 extends to the outer side of the groove 11 and is abutted with the end face of the copper sleeve 2.

The split flange comprises the following assembly steps: firstly, the copper bush 2 is placed into the flange bush 1 from the end with the larger opening of the through hole structure, then the copper bush 2 is continuously pressed inwards, the conical section of the copper bush 2 is completely attached to the inner conical wall of the flange bush 1, the copper bush is tightly pressed until the groove 11 is completely exposed, the fixing ring 3 is arranged in the groove 11, the fixing ring 3 fixes the copper bush 2 in the axial direction, and the split flange is assembled. When in use, the rotating shaft rotates in the through hole in the copper sleeve 2.

Because copper has better anti-corrosion capability, wear resistance and hardness, the copper bush 2 is not easy to wear, and the service life of the rotating shaft and the flange can be prolonged. Columniform copper sheathing 2 is difficult to put into columniform through-hole structure, and makes the front end of impressing warp at the in-process of the copper sheathing 2 of impressing easily, consequently all sets up the lateral surface of copper sheathing 2 and the lateral wall of through-hole structure into the toper, the installation of the copper sheathing 2 of being convenient for, and the toper lateral wall of the in-process through-hole structure that compresses tightly can form the guide effect to the toper lateral surface of copper sheathing 2, avoids the crooked deformation of copper sheathing 2. Copper is softer in texture, is easier to form compared with a cast aluminum material of the flange sleeve 1, reduces the surface roughness more easily, and has smaller processing difficulty when reaching the same smooth finish as the prior art, so that the integral processing of the flange is simpler and more convenient.

As a preferable configuration of the fixing ring 3, as shown in fig. 2, the fixing ring 3 is a circular ring structure with a notch. The diameter of the fixing ring 3 with the structure can be changed, so that the fixing ring 3 is convenient to mount. During the installation, will gu fixed ring 3's both ends are close to hard, make solid fixed ring 3 take place the deformation diameter and reduce, gu fixed ring 3 just can put into flange cover 1's through-hole structure easily this moment in, when solid fixed ring 3 stretches recess 11, the withdrawal is hard, gu fixed ring 3 diameter recovers in getting into recess 11, realizes solid fixed ring 3's installation.

To facilitate the biasing of the fixing ring 3, as shown in fig. 2, attachment/detachment holes 31 are provided at both ends of the fixing ring 3. The worker can insert the assembling and disassembling hole 31 with pliers, iron rod, etc. to apply force conveniently. The mounting and dismounting hole 31 is arranged outside the groove 11, so that the groove 11 is prevented from blocking the mounting and dismounting hole 31 when the fixing ring 3 is dismounted.

In order to further facilitate the detachment of the fixing ring 3, as shown in fig. 2, two ends of the fixing ring 3 are provided with projections 32, the width of the projections 32 is larger than the width of the ring body of the fixing ring 3, and the attachment/detachment holes 31 are provided on the projections 32. This structure makes the diameter of the attachment/detachment hole 31 larger, facilitating the insertion of a tool.

In order to avoid the copper bush 2 from being inclined in the pressing process, as shown in fig. 3-4, a limiting section 12 is further arranged on the side wall of the through hole structure, and the limiting section 12 is cylindrical; a guide section 21 is arranged on the outer side of the copper sleeve 2, and the guide section 21 is cylindrical; the guide section 21 is mounted in the spacing section 12. The outer side surface of the guide section 21 is connected with the inner wall of the limiting section 12 in an interference fit manner. The limiting section 12 can limit the guide section 21, so that the axis of the guide section 21 is kept fixed, and the copper bush 2 is prevented from being inclined integrally.

In order to further reduce the processing steps, as shown in fig. 1, the taper inclination of the side wall of the through hole structure and the taper inclination of the outer side surface of the copper sleeve 2 are both 0.5-3 degrees. The taper slope is a drawing slope commonly used in casting, so that the flange sleeve 1 and the copper sleeve 2 can be used without excessive processing after casting.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A split type flange of a high-voltage switch shell is characterized by comprising a flange sleeve (1), a copper sleeve (2) and a fixing ring (3);

a through hole structure is arranged in the flange sleeve (1), and the side wall of the through hole structure is conical; an annular groove (11) is formed in the side wall of the through hole structure;

the copper sleeve (2) is arranged in the through hole structure; the outer side surface of the copper sleeve (2) is conical, and the outer side surface of the copper sleeve (2) is connected with the side wall of the through hole structure in an interference fit manner;

the fixing ring (3) is arranged in the groove (11), and the inner side of the fixing ring (3) extends to the outer side of the groove (11) and is abutted to the end face of the copper sleeve (2).

2. The split flange of high-voltage switch housing according to claim 1, wherein the fixing ring (3) is a notched ring structure.

3. The split flange of a high-voltage switch shell according to claim 2, wherein both ends of the fixing ring (3) are provided with assembling and disassembling holes (31).

4. The split flange of a high-voltage switch housing according to claim 3, wherein the attachment and detachment hole (31) is provided outside the groove (11).

5. The split-type flange of a high-voltage switch shell according to claim 4, wherein two ends of the fixing ring (3) are provided with a projection (32), the width of the projection (32) is larger than that of the fixing ring (3), and the assembling and disassembling hole (31) is arranged on the projection (32).

6. The split type flange of the high-voltage switch shell according to claim 1, wherein a limiting section (12) is further arranged on the side wall of the through hole structure, and the limiting section (12) is cylindrical; a guide section (21) is arranged on the outer side of the copper sleeve (2), and the guide section (21) is cylindrical; the guide section (21) is arranged in the limiting section (12).

7. The split type flange of a high-voltage switch shell according to claim 6, wherein the outer side surface of the guide section (21) is connected with the inner wall of the limiting section (12) in an interference fit manner.

8. The split flange of the high-voltage switch shell according to claim 1, wherein the taper slope of the side wall of the through hole structure and the taper slope of the outer side surface of the copper sleeve (2) are both 0.5-3 °.