CN110487435B

CN110487435B - Transformer core damage detection device

Info

Publication number: CN110487435B
Application number: CN201910818919.4A
Authority: CN
Inventors: 孙梅
Original assignee: Rizhao Runlin Electric Appliance Co Ltd
Current assignee: Rizhao runlin Electric Appliance Co., Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-11-13
Anticipated expiration: 2039-08-30
Also published as: CN110487435A

Abstract

The invention relates to the technical field of transformer detection devices, and discloses a transformer iron core damage detection device which comprises a barrel, wherein a curling spring piece is placed at the bottom end inside the barrel, a compression spring is fixedly connected above the curling spring piece, an impact ball is fixedly connected at the upper end of the compression spring, a movable plate is hinged to the left side wall of the barrel, a supporting plate is arranged below the movable plate, a pull rod is fixedly connected to the left side surface of the supporting plate, a fixed plate is fixedly connected to the left side of the barrel, a second metal sheet and a first metal sheet are sequentially connected to the left end surface of the fixed plate from right to left, and the first metal sheet is hinged to the pull rod. This transformer core damage detection device drives the pull rod through the difference of first sheetmetal and second sheetmetal bending degree after being heated and moves to the left, drives the fly leaf clockwise rotation, and then makes the piece of spring that contracts of curling lose and support the expansion and come, and the striking ball of compression spring top will send out warning sound at the irregular striking in the barrel.

Description

Transformer core damage detection device

Technical Field

The invention relates to the technical field of transformer detection devices, in particular to a transformer iron core damage detection device.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and mainly comprises an iron core and a coil, wherein the coil is provided with two or more than two windings, the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils. The transformer iron core mainly plays a role of magnetic conduction and also has a skeleton, the transformer iron core is used as a magnetic conduction component in a transformer and is in a constantly changing electromagnetic field, the magnetization intensity and the magnetic induction intensity of the iron core are constantly changing, and the transformer iron core and the primary and secondary coils can be better mutually inductively coupled.

The transformer core often meets various faults in the working process, wherein a larger fault form is that the iron core has a local short circuit or an annular short circuit ring, at the moment, large circulating current can lead to local overheating of the iron core, the iron core is damaged, even the iron core catches fire when serious, therefore, the iron core needs to be in fault to cause the overheating of the iron core to heat up so as to alarm to some extent to adopt a corresponding solution mode, at present, a complex temperature display used for the overheating detection and early warning of the iron core is mostly adopted, the cost of the mode is higher, the mode is not cost-effective when being put into use in the detection alarm of a single transformer core, and therefore, the device which is simple in structure and convenient for the overheating alarm of the single iron core is needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a transformer iron core damage detection device which has the advantages of simple structure and capability of realizing detection alarm when a single iron core is overheated, and solves the problems that the existing device is complex in structure and cannot realize detection alarm when the iron core is overheated.

(II) technical scheme

In order to realize the purposes of simple structure and detection alarm when a single iron core is overheated, the invention provides the following technical scheme: the utility model provides a transformer core damage detection device, the novel nipple rectifier comprises a cylindrical shel, the spring leaf that crimps has been placed to the inside bottom of barrel, the top fixedly connected with compression spring of the spring leaf that crimps, compression spring's upper end fixedly connected with impact ball, the left side wall of barrel articulates there is the fly leaf, the fly leaf level sets up in the left side of the spring leaf that crimps, the below of fly leaf is provided with the fagging, the two sets of pull rods of left surface fixedly connected with of fagging, the left side middle part fixedly connected with fixed plate of barrel, the left end face of fixed plate has connected gradually second sheetmetal and first sheetmetal from the right side to a left.

Preferably, the vertical section of the barrel is trapezoidal and is made of metal, so that better impact of an impact ball is facilitated.

Preferably, the material of striking ball is the metal, makes the sound when striking ball and barrel striking more clear and more fragile easily discern.

Preferably, the left side wall of the barrel is provided with a hole corresponding to the movable plate, so that the movable plate can rotate conveniently.

Preferably, the upper portions of the first metal sheet and the second metal sheet are riveted through rivets, and the upper portions of the first metal sheet and the second metal sheet are connected with the fixing plate through bolts, so that the fixing plate can be detached conveniently.

Preferably, a screw hole matched with the bolt is formed in the fixing plate.

Preferably, the expansion degree of the first metal sheet when being heated is smaller than that of the second metal sheet when being heated, so that the combination of the first metal sheet and the second metal sheet is bent towards the direction of the first metal sheet when the temperature is increased.

Preferably, the bottom of fagging is provided with the slab muscle, and the bottom of barrel is provided with the groove corresponding with the slab muscle on the fagging, makes things convenient for the slip of fagging.

(III) advantageous effects

Compared with the prior art, the invention provides a transformer iron core damage detection device, which has the following beneficial effects:

1. this transformer core damage detection device, the change that detects the temperature is responded to through the assembly that is provided with first sheetmetal and second sheetmetal, then drives the pull rod through the sheetmetal that the degree of bending is different after being heated and moves to the left, and then drives the fly leaf clockwise rotation, and then makes the spring leaf that crimps lose and support the expansion and open, and the striking ball that drives the compression spring top sends out warning sound in the irregular striking of barrel, has realized the detection alarm to the iron core intensification with simple structure.

2. This transformer core damage detection device, simple structure, the device is small and exquisite, can realize carrying out overheated detection alarm to single iron core, and conveniently removes and place, and with the combination body bolted connection of first sheetmetal and second sheetmetal on the fixed plate, can dismantle by easy to assemble to restore convenient reuse to the sheetmetal after the deformation.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a top view of the coiled spring blade of the present invention;

fig. 3 is a schematic view showing the connection of the first metal sheet and the second metal sheet to the tie bar in the present invention.

In the figure: 1-cylinder, 2-coiled spring leaf, 3-compression spring, 4-impact ball, 5-movable plate, 6-supporting plate, 7-pull rod, 8-second metal sheet, 9-first metal sheet, 10-fixing plate and 11-bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a damage detection device for transformer iron core comprises a barrel 1, a curling spring leaf 2 is placed at the bottom end inside the barrel 1, a compression spring 3 is fixedly connected above the curling spring leaf 2, an impact ball 4 is fixedly connected at the upper end of the compression spring 3, the impact ball 4 is made of metal, the vertical section of the barrel 1 is trapezoidal and made of metal, the impact of the impact ball can be facilitated to generate crisp and loud metal impact sound, the alarm effect is improved, a movable plate 5 is hinged to the left side wall of the barrel 1, a hole corresponding to the movable plate 5 is formed in the left side wall of the barrel 1, the movable plate 5 can be conveniently rotated, the movable plate 5 is horizontally arranged on the left side of the curling spring leaf 2, a support plate 6 is arranged below the movable plate 5, a plate rib is arranged at the bottom of the support plate 6, a groove corresponding to the plate rib on the support plate 6 is formed at the, the sliding of the supporting plate 6 in the cylinder 1 is facilitated, two groups of pull rods 7 are fixedly connected to the left side surface of the supporting plate 6, a fixing plate 10 is fixedly connected to the middle of the left side of the cylinder 1, a second metal sheet 8 and a first metal sheet 9 are sequentially connected to the left end surface of the fixing plate 10 from right to left, the expansion degree of the first metal sheet 9 when being heated is smaller than that of the second metal sheet 8 when being heated, the combination of the first metal sheet 9 and the second metal sheet 8 can be bent towards the first metal sheet 9 when the temperature rises, a screw hole matched with a bolt 11 is formed in the fixing plate 10, the upper portions of the first metal sheet 9 and the second metal sheet 8 are riveted through a rivet, the upper portions of the combination of the first metal sheet 9 and the second metal sheet 8 are connected with the fixing plate 10 through the bolt 11, the dismounting is facilitated, and the deformed first metal sheet 9 and the deformed second metal sheet 8 can be restored and conveniently recycled, the lower part of the combination of the first metal sheet 9 and the second metal sheet 8 is connected with the pull rod 7 in a specific connection mode that: the first metal sheet 9 is hinged with the pull rod 7, so that the first metal sheet 9 can be conveniently heated to bend leftwards to drive the pull rod 7 to move.

The working principle is as follows: place the device near the iron core, the rising of iron core temperature can make the ambient temperature rise, and then first sheetmetal 9 and second sheetmetal 8 can be heated the thermal expansion, because of the inflation degree when first sheetmetal 9 is heated is less than the inflation degree when second sheetmetal 8 is heated, so the assembly of first sheetmetal 9 and second sheetmetal 8 is crooked to first sheetmetal 9 direction when heaing up, and then drive pull rod 7 and move to the left, fagging 6 with pull rod 7 fixed connection also can move from on a left side and open barrel 1, then fly leaf 5 can rotate clockwise, and then make crimping spring leaf 2 lose and support the expansion and come, the impact ball 4 that drives compression spring 3 top sends out warning sound at the random striking in barrel 1, the detection alarm to iron core abnormal temperature rise has been realized with simple structure.

In conclusion, the damage detection device for the transformer iron core realizes simple structure and can realize the purpose of automatic detection and alarm when the iron core is overheated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a transformer core damage detection device, includes barrel (1), its characterized in that: a curling spring piece (2) is placed at the bottom end inside the barrel (1), a compression spring (3) is fixedly connected above the curling spring piece (2), an impact ball (4) is fixedly connected at the upper end of the compression spring (3), a movable plate (5) is hinged to the left side wall of the barrel (1), the movable plate (5) is horizontally arranged on the left side of the curling spring piece (2), a supporting plate (6) is arranged below the movable plate (5), a pull rod (7) is fixedly connected to the left side surface of the supporting plate (6), a fixed plate (10) is fixedly connected to the middle part of the left side of the barrel (1), a second metal sheet (8) and a first metal sheet (9) are sequentially connected to the left end surface of the fixed plate (10) from right to left, the expansion degree of the first metal sheet (9) when being heated is smaller than that of the second metal sheet (8) when being heated, and the lower part of the first metal sheet (9) is hinged with the pull rod (7).

2. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: the vertical section of the cylinder body (1) is trapezoidal and is made of metal.

3. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: the striking ball (4) is made of metal.

4. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: the left side wall of the cylinder body (1) is provided with a hole corresponding to the movable plate (5).

5. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: the upper parts of the first metal sheet (9) and the second metal sheet (8) are riveted through rivets, and the upper part of the combined body of the first metal sheet (9) and the second metal sheet (8) is connected with the fixing plate (10) through bolts (11).

6. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: and a screw hole matched with the bolt (11) is formed in the fixing plate (10).

7. The apparatus for detecting damage to the iron core of the transformer according to claim 1, wherein: the bottom of the supporting plate (6) is provided with a plate rib, and the bottom of the barrel body (1) is provided with a groove corresponding to the plate rib on the supporting plate (6).