CN210722916U - Improved shaft sleeve for durable circuit breaker - Google Patents

Abstract

The utility model discloses an improved generation axle sleeve for durable type circuit breaker, this axle sleeve are located between operation pivot and the mounting panel, and operation pivot is overlapped altogether and is equipped with two mounting panels, and the outside welding that the operation pivot is located two mounting panels has first cantilever, is located to weld between two mounting panels has the second cantilever, and the axle sleeve package rubbing board body, one side of plate body are equipped with the bulge tube, and the fixed orifices has been seted up to the opposite side, wears to be equipped with the bolt that runs through the mounting panel simultaneously in the fixed orifices, and the body of rod cover of bolt is equipped with the gasket. The middle shaft sleeve of the utility model is arranged in advance when the operation rotating shaft is welded with the cantilever, thereby simplifying the difficulty of later assembly, and the operation rotating shaft can still be fixed in the original position and can not be easily separated after the nut is loosened; the tolerance of the gap is controlled by the shaft sleeve, the gap cannot be changed, and the installation is more stable; the shaft sleeve has high mechanical strength, long service life and high durability.

Description

Improved shaft sleeve for durable circuit breaker

Technical Field

The utility model relates to a circuit breaker accessory technical field especially relates to an improved generation axle sleeve for durable type circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current.

Patent specification with publication number CN205081072U discloses a durable circuit breaker, including bakelite spare body, the cantilever transfer mechanism installed on the bakelite spare body, the operation rotating shaft controlled by the cantilever transfer mechanism to rotate, cantilever and the supporting component fixedly installed on the bakelite spare body, the cantilever is welded on the operation rotating shaft, the supporting component is sleeved on the operation rotating shaft, and the supporting component is provided with a bearing structure capable of reducing the rotating friction force between the supporting component and the operation rotating shaft. This durable type circuit breaker discovers cantilever changeover mechanism in the use and has the weak point, and axle sleeve structural design in it is reasonable inadequately, and the axle sleeve is yielding under long-term the use, and the space between the axle sleeve also is difficult to control, in case the nut pine takes off, outer axle sleeve also can drop along with it, influences cantilever changeover mechanism's use, needs to improve the optimization to the axle sleeve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide an improved generation axle sleeve for durable type circuit breaker.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the utility model provides an improved generation axle sleeve for durable type circuit breaker, this axle sleeve is located between operation pivot and the mounting panel, operation pivot is overlapped altogether and is equipped with two mounting panels, the outside welding that the operation pivot is located two mounting panels has first cantilever, is located to weld between two mounting panels has the second cantilever, the axle sleeve package rubbing board body, one side of plate body is equipped with the bulge tube, and the fixed orifices has been seted up to the opposite side, wear to be equipped with the bolt that runs through the mounting panel simultaneously in the fixed orifices, the body of rod of bolt is located and overlaps between nut and the mounting panel lateral wall and is equipped with the gasket.

Further, in the improved shaft sleeve for the durable circuit breaker, the bracket plate is provided with a notch matched with the shaft sleeve.

Further, in the improved shaft sleeve for the durable circuit breaker, the plate body of the shaft sleeve is 3-5mm in thickness, and the height of the convex pipe is 6-10 mm.

Further, in the improved shaft sleeve for the durable circuit breaker, the inner hole diameter of the convex tube is 14-18 mm.

Further, in the improved shaft sleeve for the durable circuit breaker, the diameter of the fixing hole is 7-8 mm.

Further, in the above-mentioned improved bushing for a durable type circuit breaker, the bushing is made of a steel material No. 10.

The utility model has the advantages that:

the utility model has reasonable structural design, the shaft sleeve is arranged in advance when the operation rotating shaft welds the cantilever, the later assembly difficulty is simplified, and the operation rotating shaft can still be fixed in the original position after the nut of the bolt is loosened, and can not be easily separated; the tolerance of the gap is controlled by the shaft sleeve, the gap cannot be changed, and the installation is more stable; the shaft sleeve has high mechanical strength, long service life and high durability.

Of course, it is not necessary for any product to achieve all of the above advantages simultaneously in practicing the invention.

Drawings

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

FIG. 1 is a schematic view of a three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the structure of the utility model;

fig. 3 is a schematic top view of the middle shaft sleeve according to the present invention;

FIG. 4 is a schematic cross-sectional view of the middle shaft sleeve according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-operation rotating shaft, 2-support plate, 3-first cantilever, 4-second cantilever, 5-shaft sleeve, 501-plate body, 502-convex tube and 503-fixing hole.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, in the present embodiment, an improved shaft sleeve for a durable circuit breaker is provided, the shaft sleeve 5 is disposed between an operating rotating shaft 1 and two supporting plates 2, the operating rotating shaft 1 is sleeved with the two supporting plates 2, a first cantilever 3 is welded on the operating rotating shaft 1 at the outer side of the two supporting plates 2, and a second cantilever 4 is welded between the two supporting plates 2. The support plate 2 is provided with a notch matched with the shaft sleeve 5, and the notch is a circular arc opening. The shaft sleeve 5 comprises a plate body 501, one side of the plate body 501 is provided with a convex pipe 502, and the other side of the plate body 501 is provided with a fixing hole 503. Wear to be equipped with the bolt 6 that runs through mounting panel 2 simultaneously in the fixed orifices 503, the body of rod of bolt 6 is located and is equipped with gasket 7 between nut and the mounting panel 2 lateral wall.

In this embodiment, the boss 5 is made of a 10-gauge steel material.

In this embodiment, the plate 501 of the shaft sleeve 5 has a thickness of 4mm, and the height of the protruding tube 502 is 8 mm. The inner hole diameter of the convex tube 502 is 16mm, and the hole diameter of the fixing hole 503 is 7.5 mm.

One specific application of this embodiment is: the structure of the embodiment is reasonable in design, the shaft sleeve 5 is arranged in advance when the rotating shaft 1 is operated to weld the cantilever, the later-stage assembly difficulty is simplified, and the rotating shaft can still be fixed in the original position after the nut of the bolt 6 is loosened, so that the rotating shaft cannot be easily separated; the tolerance of the gap is controlled by the shaft sleeve, the gap cannot be changed, and the installation is more stable; the shaft sleeve 5 has high mechanical strength, long service life and good durability.

Example two

The structure and application of this embodiment are substantially the same as those of the first embodiment, except that the plate 501 of the bushing 5 has a thickness of 3mm and the height of the protruding tube 502 is 6 mm. The inner hole diameter of the convex tube 502 is 14mm, and the hole diameter of the fixing hole 503 is 7 mm.

EXAMPLE III

The structure and application of this embodiment are substantially the same as those of the first embodiment, except that the plate 501 of the bushing 5 has a thickness of 5mm and the height of the protruding tube 502 is 10 mm. The inner hole diameter of the convex tube 502 is 18mm, and the hole diameter of the fixing hole 503 is 8 mm.

The preferred embodiments of the present invention disclosed above are only advantageous to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides an improved generation axle sleeve for durable type circuit breaker, this axle sleeve is located between operation pivot and the mounting panel, the operation pivot is overlapped altogether and is equipped with two mounting panels, the outside welding that the operation pivot is located two mounting panels has first cantilever, is located to weld between two mounting panels has second cantilever, its characterized in that: the shaft sleeve comprises a plate body, wherein a convex pipe is arranged on one side of the plate body, a fixing hole is formed in the other side of the plate body, a bolt penetrating through the support plate simultaneously penetrates through the fixing hole, and a gasket is sleeved between a nut and the outer side wall of the support plate on the rod body of the bolt.

2. The improved bushing for a rugged circuit breaker as claimed in claim 1, wherein: the support plate is provided with a notch matched with the shaft sleeve.

3. The improved bushing for a rugged circuit breaker as claimed in claim 1, wherein: the plate body of the shaft sleeve is 3-5mm in thickness, and the height of the convex pipe is 6-10 mm.

4. The improved bushing for a rugged circuit breaker as claimed in claim 1, wherein: the diameter of the inner hole of the convex pipe is 14-18 mm.

5. The improved bushing for a rugged circuit breaker as claimed in claim 1, wherein: the aperture of the fixing hole is 7-8 mm.

6. The improved bushing for a rugged circuit breaker as claimed in claim 1, wherein: the shaft sleeve is made of No. 10 steel materials.

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