CN217442694U

CN217442694U - Cable insulation performance aging detection device

Info

Publication number: CN217442694U
Application number: CN202221560952.5U
Authority: CN
Inventors: 葛兆信; 王善卿; 郑文欣; 孙景波; 刘文革; 李士斌; 袁萌
Original assignee: Tancheng Power Supply Co Of State Grid Shandong Electric Power Co
Current assignee: Tancheng Power Supply Co Of State Grid Shandong Electric Power Co
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-09-16
Anticipated expiration: 2032-06-21

Abstract

The application relates to the technical field of electric power safety maintenance equipment, in particular to a cable insulation performance aging detection device, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are symmetrically sleeved outside a cable, an upper pressing device and a lower pressing device are respectively arranged in the shells, the upper pressing device and the lower pressing device respectively comprise a bearing part and pressing wheel sets hinged with two ends of the bearing part, one end of a spring is vertically fixed in the direction of a bearing plate of the bearing part deviating from the cable, and the other end of the spring is connected with the shells; a driven gear is fixedly sleeved on an intermediate rod on the upper pressing device, a motor is fixedly installed on a bearing plate corresponding to the intermediate rod, and a main gear meshed with the driven gear is fixedly sleeved on a motor shaft of the motor; and a temperature detection device and a control device are also fixedly arranged on any one of the bearing plates of the upper pressing device or the lower pressing device. The device of this application need not demolish the cable or have a power failure with the cable, also can accomplish the simple and easy detection to cable insulation performance when the cable normally transmits electricity.

Description

Cable insulation performance aging detection device

Technical Field

The application relates to the technical field of electric power safety maintenance equipment, in particular to a cable insulation performance aging detection device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The cable runs under the action of electricity and heat for a long time, the physical properties of the cable can be changed, so that the insulation strength of the cable is reduced or the dielectric loss of the cable is increased, the insulation breakdown and aging are finally caused to break down, electric dissociation generated by an air gap in the cable insulation can cause local overheating, an insulating material is carbonized, and the insulation strength is reduced. Cable overload is an important factor in cable overheating. Cables, cable paths and thermal pipelines which are arranged at poor ventilation positions such as cable dense areas, cable ditches, cable tunnels and the like are parallel or crossed, effective heat insulation measures are not adopted, and the like, so that the cables are overheated, and the damage of an insulation layer is accelerated.

To the judgement of cable insulating properties among the prior art, often need to have a power failure earlier with the cable and handle or take off the cable, carry out insulation detection such as withstand voltage with dedicated equipment instrument, to some overhead transmission distribution lines, it is extremely unrealistic to take off the cable on the one hand, and on the other hand has a power failure to handle and can cause inconvenience for resident's life, industrial power consumption, can cause serious economic loss even.

In view of the above, it is necessary to design a device that can easily detect the insulation performance of a cable without performing power failure processing on the cable or removing the cable, and can be used at any time, so as to ensure the safety of power transmission.

Disclosure of Invention

Based on this, to above-mentioned technical problem, the application provides a cable insulation performance detection device that ages.

The technical scheme that this application solved the problem that prior art exists adopted is:

the application provides a cable insulation performance aging detection device, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are symmetrically sleeved outside a cable, an upper pressing device and a lower pressing device are respectively arranged in the two shells, the upper pressing device and the lower pressing device respectively comprise a pressure-bearing part and pressing wheel sets hinged to two ends of the pressure-bearing part, each pressing wheel set at least comprises a group of pressing wheels which are directly contacted with the cable and symmetrically arranged, each group of pressing wheels is fixedly connected through an intermediate rod, and the intermediate rod penetrates through hinged cylinders at two ends of the pressure-bearing part and is hinged to two ends of the pressure-bearing part; the two hinged cylinders of the pressure-bearing part are fixedly connected through a pressure-bearing plate; one end of a spring is vertically and fixedly arranged in the direction of the bearing plate departing from the cable, and the other end of the spring is connected with the shell;

a set of pressing wheel middle rods of the upper pressing device or the lower pressing device are fixedly sleeved with a driven gear, a bearing plate corresponding to the middle rods is fixedly provided with a motor, and a motor shaft of the motor is fixedly sleeved with a main gear meshed with the driven gear;

a temperature detection device and a control device are also fixedly arranged on any one of the bearing plates of the upper pressing device or the lower pressing device;

the motor and the temperature detection device are electrically connected with the control device.

Preferably, the outer center of the pinch roller is fixedly provided with a limiting part with a cylindrical structure, the shell is provided with a limiting groove matched with the limiting part, and the limiting part can slide up and down in the limiting groove.

Preferably, the housing comprises a housing top, two side plates and two baffles positioned in the front-rear direction of the housing, which are fixed together, an arc opening is arranged below the baffles, and when the upper housing and the lower housing are mounted together, the arc openings of the front baffle and the rear baffle are abutted to form an inlet and an outlet of a cable; the side plates are externally folded to form connecting plates which are vertically connected with the side plates, round holes which correspond to one another one by one are formed in the connecting plates, and the two shells are fixed relatively by installing bolts in the round holes.

Preferably, a fixed circular groove corresponding to the spring is fixedly arranged inside the shell top, the fixed circular groove is of a hollow cylindrical structure, and one end of the spring is arranged in the fixed circular groove.

Preferably, the middle rod at two sides of the hinged cylinder is fixedly provided with a circular ring which has a limiting effect on the hinged cylinder.

Preferably, the intermediate rod is provided with a driven gear, and a limiting device for preventing the driven gear and the hinged cylinder from contacting is arranged between the driven gear and the hinged cylinder.

Preferably, the limiting device is a circular ring sleeved on the middle rod.

Preferably, the material of the pinch roller is an insulating material; and the surface of the pinch roller is provided with anti-skid patterns.

Preferably, the temperature detection device is an infrared thermometer.

Preferably, the number of the springs is at least two, and the springs are symmetrically and fixedly arranged on the bearing plate; each pinch roller set comprises a group of pinch rollers which are directly contacted with the cable and are symmetrically arranged.

Compared with the prior art, the beneficial effect of this application is:

1. the cable does not need to be dismantled or powered off, and the simple detection on the insulation performance of the cable can be completed when the cable is normally used for power transmission and distribution.

2. The detection is convenient, and automatic inspection can be realized.

3. The utility model provides an ageing detection device of cable insulation performance finishes the back at the installation, and the personnel of patrolling and examining only can realize the operation of this device, stop through cell-phone end APP to accomplish the detection to the ageing of cable insulation performance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments and illustrations of the application are intended to explain the application and are not intended to limit the application.

FIG. 1 is an exploded view of a mounting structure of a cable insulation degradation detection device according to the present application,

FIG. 2 is a schematic view of the overall installation structure of a cable insulation degradation detection device according to the present application,

FIG. 3 is a schematic structural diagram of an upper pressing device of the cable insulation performance aging detection device according to the present application,

FIG. 4 is a schematic structural diagram of a lower pressing device of the cable insulation degradation detection device of the present application,

FIG. 5 is a schematic structural diagram of a pressing wheel set of the cable insulation degradation detection device according to the present application,

figure 6 is a schematic structural view of a pressure-bearing part of the cable insulation performance aging detection device of the present application,

fig. 7 is a schematic structural diagram of the inside of the housing of the cable insulation performance aging detection device according to the present application.

In the figure:

1. a shell, 2, an upper pressing device, 3, a lower pressing device, 4, a cable, 10, a shell top, 11, a side plate, 12, a baffle plate, 13, a connecting plate, 14, a round hole, 15, a fixed round groove, 16, a limiting groove, 17, a bolt, 20, a pressing wheel set, 21, a bearing part, 22, a temperature detection device, 23, a control device, 24, a spring, 25, a motor, 26, a master gear, 27 and a slave gear,

200. a middle rod 201, a pressing wheel 202 and a limiting piece,

210. bearing plate, 211, hinge cylinder.

The specific implementation mode is as follows:

the present application will be further described with reference to the following drawings and examples.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

Fig. 1 and 2 are preferred embodiments of a cable insulation performance degradation detection apparatus of the present application, fig. 3 is a schematic structural view of an upper pressing device 2 of the cable insulation performance degradation detection apparatus of the present application, fig. 4 is a schematic structural view of a lower pressing device 3, fig. 5 is a schematic structural view of a pressing wheel set, fig. 6 is a schematic structural view of a pressure-bearing member 21, and fig. 7 is a schematic structural view of an interior of a housing 1.

The aging detection device for the insulation performance of the cable comprises an upper shell 1 and a lower shell 1 which are symmetrically sleeved outside the cable 4, wherein the shells 1 comprise a shell top 10, two side plates 11 and two baffle plates 12 which are positioned in the front-back direction of the shells 1, the lower parts of the baffle plates 12 are provided with arc openings, and when the upper shell 1 and the lower shell 1 are installed together, the arc openings of the front baffle plate 12 and the rear baffle plate 12 are abutted to form an inlet and an outlet of the cable 4; the side plates 11 are folded outwards to form connecting plates 13 which are vertically connected with the side plates, round holes 14 which are in one-to-one correspondence are formed in the connecting plates 13, and the two shells 1 are fixed relatively by installing bolts in the round holes 14; a fixed circular groove 15 corresponding to the spring 24 is fixedly arranged in the shell top 10, the fixed circular groove 15 is of a hollow cylindrical structure, and one end of the spring 24 is arranged in the fixed circular groove 15; rings which limit the hinged cylinder 211 are fixedly arranged on the middle rod 200 at two sides of the hinged cylinder 211; the number of the springs 24 is at least two, in this embodiment, the number of the springs 24 is two, and the springs are symmetrically and fixedly arranged on the pressure bearing plate 210; each pinch roller set comprises a set of pinch rollers 201 in direct contact with the cable 4 and symmetrically arranged.

The two shells 1 are respectively provided with an upper pressing device 2 and a lower pressing device 3, the upper pressing device 2 and the lower pressing device 3 respectively comprise a pressure-bearing part 21 and pressing wheel sets 20 hinged with two ends of the pressure-bearing part 21, each pressing wheel set 20 at least comprises a group of pressing wheels 201 which are directly contacted with the cable 4 and symmetrically arranged, each group of pressing wheels 201 are fixedly connected through an intermediate rod 200, and the intermediate rod 200 penetrates through hinged cylinders 211 at two ends of the pressure-bearing part 21 to be hinged with two ends of the pressure-bearing part 21; the two hinged cylinders 211 of the pressure-bearing part 21 are fixedly connected through a pressure-bearing plate 210; one end of a spring 24 is vertically and fixedly arranged on the bearing plate 210 in a direction departing from the cable 4, and the other end of the spring 24 is connected with the shell 1;

a limiting piece 202 with a cylindrical structure is fixedly arranged at the outer center of the pressing wheel 201, a limiting groove 16 matched with the limiting piece 202 is arranged on the shell 1, and the limiting piece 202 can slide up and down in the limiting groove 16; the pinch roller 201 is made of an insulating material; the surface of the pressing wheel 201 is provided with anti-skid patterns.

A secondary gear 27 is fixedly sleeved outside a group of pressing wheel 201 middle rods 200 of the upper pressing device 2 or the lower pressing device 3, a motor 25 is fixedly installed on a bearing plate 210 corresponding to the middle rods 200, and a primary gear 26 meshed with the secondary gear 27 is fixedly sleeved on a motor shaft of the motor 25; the middle rod 200 is provided with the driven gear 27, and a limiting device for preventing the driven gear 27 and the hinged cylinder 211 from contacting with each other is arranged between the driven gear 27 and the hinged cylinder 211 and is a circular ring sleeved on the middle rod 200.

A temperature detection device 22 and a control device 23 are also fixedly mounted on any one of the pressure bearing plates 210 of the upper pressing device 2 or the lower pressing device 3, and the temperature detection device 22 is an infrared thermometer; motor 25, temperature-detecting device 22 are connected with controlling means 23 electricity, controlling means 23 and the built-in cell-phone wireless connection who has the supporting APP with controlling means 23.

When the cable insulation performance aging detection device is installed, firstly, the suspended end, which is not fixedly connected with the pressure bearing plate 210, of the spring 24 of the lower pressing device 3 is placed into the fixed circular groove 15 in the bottom lower shell 1, then the bottom lower shell 1 is supported below a cable 4 to be detected, and referring to fig. 1, the pressing wheel set 20 of the lower pressing device 3 is supported below the cable 4;

then, the pressing wheel set 20 of the upper pressing device 2 is abutted to the upper part of the cable 4, as shown in fig. 1, then the housing 1 is buckled, and meanwhile, one end, which is suspended and is not fixedly connected with the bearing plate 210, of the spring 24 of the upper pressing device 2 is placed into the fixed circular groove 15 in the upper housing 1; and finally, the upper shell 1 and the lower shell 1 are fixed by installing bolts in the round holes 14 which are in one-to-one correspondence on the connecting plates 13.

In the process, due to the action of the elastic force of the spring 24, a certain pressure is always kept between the shell 1 and the bearing plate 210 by the spring 24, after the upper shell 1 and the lower shell 1 are fixed with each other, the elastic force of the spring 24 enables the pressing wheel sets 20 in the upper direction and the lower direction of the cable 4 to always have a certain pressure on the cable 4, so that the whole device can displace in the direction of the cable 4 as long as one of the pressing wheel sets 20 rotates, and the pressing wheel 201 is made of an insulating material to ensure that the cable insulation performance aging detection device is completely insulated from the cable 4; the anti-slip pattern on the surface of the pressing wheel 201 ensures that no slip occurs when the pressing wheel set 20 moves on the cable 4.

After the cable insulation performance aging detection device is installed, in use, a user can control the control device 23 wirelessly connected with the mobile phone end APP through the mobile phone end APP, the control device 23 further controls the starting and stopping of the motor 25, after the motor 25 is started, as shown in fig. 3, a motor shaft of the motor 25 drives the main gear 26 to rotate, the main gear 26 drives the slave gear 27 meshed with the main gear to rotate, and the slave gear 27 is fixedly sleeved on the intermediate rod 200, so that the rotation of the slave gear 27 drives the rotation of the intermediate rod 200, and further the rotation of the intermediate rod 200 drives the pinch rollers 201 on two sides of the intermediate rod 200 to rotate; because the middle rods 200 are hinged with the hinged cylinders 211 at the two ends of the pressure-bearing part 21, when one of the middle rods 200 drives the pressing wheels 201 to rotate under the action of the slave gear 27, all the pressing wheels 201 pressed with the cable 4 can rotate, and the movement of the cable insulation performance aging detection device on the cable 4 is realized.

In the process that the cable insulation performance aging detection device moves on the cable 4, the temperature detection device 22 arranged on the pressure bearing plate 210, which is an infrared thermometer in this embodiment, continuously measures and collects the temperature value on the cable 4, and transmits the collected temperature signal to the control device 23; after the temperature signal that controlling means 23 detected surpassed the settlement threshold value, controlling means control motor 25 stopped rotating to send alarm information on cell-phone end APP and inform the user.

The aging detection device for the insulation performance of the cable can be arranged at one end of the cable 4 after being installed and fixed, when the cable 4 needs to be detected, the aging condition of the insulation performance of the cable 4 can be detected at any time through APP at a mobile phone end of a user, and the aging detection device is convenient and simple to use; because the insulation performance of the cable is usually caused by local overheating of the cable, the device can timely find and prevent the insulation performance of the cable from aging and prevent the cable from being damaged; meanwhile, the condition that power failure is needed or the cable needs to be dismantled for detection during aging detection of the insulation performance of the cable in the prior art is also overcome.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.

Claims

1. The utility model provides a cable insulation performance detection device that ages which characterized in that:

the cable pressing device comprises an upper shell (1) and a lower shell (1) which are symmetrically sleeved outside a cable (4), wherein an upper pressing device (2) and a lower pressing device (3) are respectively arranged in the two shells (1), the upper and lower pressing devices (2 and 3) respectively comprise a pressure-bearing part (21) and pressing wheel sets (20) hinged to two ends of the pressure-bearing part (21), each pressing wheel set (20) at least comprises a group of pressing wheels (201) which are directly contacted with the cable (4) and symmetrically arranged, each group of pressing wheels (201) are fixedly connected through an intermediate rod (200), and the intermediate rods (200) penetrate through hinged cylinders (211) at two ends of the pressure-bearing part (21) and are hinged to two ends of the pressure-bearing part (21); the two hinged cylinders (211) of the pressure-bearing piece (21) are fixedly connected through a pressure-bearing plate (210); one end of a spring (24) is vertically and fixedly arranged in the direction of the pressure bearing plate (210) deviating from the cable (4), and the other end of the spring (24) is connected with the shell (1);

a secondary gear (27) is fixedly sleeved outside a middle rod (200) of a group of pinch rollers (201) of the upper pressing device (2) or the lower pressing device (3), a motor (25) is fixedly installed on a bearing plate (210) corresponding to the middle rod (200), and a primary gear (26) meshed with the secondary gear (27) is fixedly sleeved on a motor shaft of the motor (25);

a temperature detection device (22) and a control device (23) are also fixedly arranged on any one pressure bearing plate (210) of the upper pressing device (2) or the lower pressing device (3);

the motor (25) and the temperature detection device (22) are electrically connected with the control device (23).

2. The cable insulation performance aging detection device according to claim 1, characterized in that:

the outer center of pinch roller (201) is fixed and is equipped with locating part (202) of cylindric structure, be equipped with on shell (1) with locating part (202) complex spacing groove (16), locating part (202) can slide from top to bottom in spacing groove (16).

3. The cable insulation performance aging detection device according to claim 1, characterized in that:

the cable protection device is characterized in that the shell (1) comprises a shell top (10), two side plates (11) and two baffle plates (12) positioned in the front-back direction of the shell (1), which are fixed together, an arc opening is arranged below the baffle plates (12), and when the upper shell (1) and the lower shell (1) are installed together, the arc openings of the front baffle plate and the rear baffle plate (12) are abutted to form an inlet and an outlet of a cable (4); the side plates (11) are folded outwards to form connecting plates (13) which are vertically connected with the side plates, round holes (14) which correspond to one another are formed in the connecting plates (13), and the two shells (1) are fixed relatively by installing bolts in the round holes (14).

4. The cable insulation performance aging detection device according to claim 3, characterized in that:

the shell top (10) is internally and fixedly provided with a fixed circular groove (15) corresponding to the spring (24), the fixed circular groove (15) is of a hollow cylindrical structure, and one end of the spring (24) is arranged in the fixed circular groove (15).

5. The cable insulation performance aging detection device according to claim 1, characterized in that:

and two sides of the hinged cylinder (211) are positioned on the middle rod (200) and are fixedly provided with circular rings which play a limiting role on the hinged cylinder (211).

6. The cable insulation performance aging detection device according to claim 1, characterized in that:

the middle rod (200) is provided with a slave gear (27), and a limiting device for preventing the slave gear (27) and the hinged cylinder (211) from contacting is arranged between the slave gear and the hinged cylinder.

7. The apparatus for detecting the aging of the insulation performance of the cable according to claim 6, wherein:

the limiting device is a circular ring sleeved on the middle rod (200).

8. The cable insulation performance degradation detection device according to claim 1 or 2, characterized in that:

the compaction wheel (201) is made of an insulating material; the surface of the pressing wheel (201) is provided with anti-skid patterns.

9. The apparatus for detecting the deterioration of the insulation performance of a cable according to claim 8, wherein:

the temperature detection device (22) is an infrared thermometer.

10. The cable insulation performance aging detection device according to claim 1, characterized in that:

at least two springs (24) are symmetrically and fixedly arranged on the bearing plate (210); each pinch roller set comprises a group of pinch rollers (201) which are directly contacted with the cable (4) and are symmetrically arranged.