CN215768162U - Power cable intermediate head cold and hot circulation accelerated wetting aging experiment platform - Google Patents

Abstract

The utility model discloses a power cable intermediate joint cold-hot circulation accelerated wetting aging experiment platform which comprises a supporting table, wherein four groups of supporting legs are arranged at the lower end of the supporting table, a detection containing box is fixedly arranged at the upper end of the supporting table, a heating pipe is arranged at the bottom inside the detection containing box, a sealing cover is arranged at the upper end of the detection containing box, a positioning mechanism is fixedly arranged at the upper end of the sealing cover close to the edges of two sides, a guide mechanism is fixedly arranged at the inner part of the supporting table close to the inner walls of the two sides, and a lead is arranged between the guide mechanism and the positioning mechanism in a penetrating mode. According to the power cable intermediate joint cold-hot circulation accelerated damp aging experiment platform, the cable can be kept in a fixed state during detection through the cooperation between the guide mechanism and the positioning mechanism, and the detection result of the experiment is accurate.

Description

Power cable intermediate head cold and hot circulation accelerated wetting aging experiment platform

Technical Field

The utility model relates to the technical field of cable detection, in particular to a power cable intermediate joint cold-hot circulation accelerated wetting aging experiment platform.

Background

In order to simulate field operation conditions under the action of cable cold-hot circulation, a long power cable intermediate joint cold-hot circulation accelerated-wetting aging experiment platform is set up in a laboratory, 2 manufactured 20-meter long 10kV heat-shrinkable and cold-shrinkable intermediate joint cables are placed in a water bath box to carry out cold-hot circulation accelerated-wetting aging experiments, a thermostat is used for controlling the temperature of the water bath box, 14h is used as a heating stage (the temperature is 90 ℃) within 24h every day, 10h is used as a cooling stage (natural cooling is carried out to room temperature), and the experiment period is 30 d.

Traditional power cable intermediate head cold and hot circulation is damped ageing experiment platform with higher speed has some shortcomings, and the inside of propping up a supporting bench does not have guiding mechanism and positioning mechanism at first, and the wire is difficult to control in the position of the inside of propping up a supporting bench, and the change that appears the cable position easily leads to the inaccuracy of testing result.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a power cable intermediate joint cold-hot circulation accelerated damp aging experiment platform which can effectively solve the problems in the background technology.

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

power cable intermediate head cold and hot circulation is wet ageing tests platform with higher speed, including a supporting bench, the lower extreme of brace table is provided with four group's supporting legss, the upper end fixed mounting of brace table has the detection to hold the case, the inside bottom that the detection held the case is installed the heating pipe, the upper end that the detection held the case is installed airtight lid, airtight lid's upper end is close to both sides border department fixed mounting and is had positioning mechanism, the inside of brace table is close to both sides inner wall department equal fixed mounting and is had guiding mechanism, it is provided with the wire to run through between guiding mechanism and the positioning mechanism.

Preferably, the number of the supporting legs is four, the four supporting legs are respectively and fixedly installed at four corners of the lower end of the supporting table, and the sealing cover is rotatably connected with the detection containing box through a rotating shaft.

Preferably, guiding mechanism includes that fixed mounting is close to the dead lever of both sides inner wall department in the inside that detects the containing box, the one end fixedly connected with mount of dead lever, the inside of mount is connected with the leading wheel through the pivot, the contained angle between dead lever and the horizontal plane is 30 degrees.

Preferably, positioning mechanism includes two sets of support frames of fixed mounting in the upper end edge of airtight lid, the upper end fixedly connected with uide bushing of support frame, the inside bottom fixed mounting of uide bushing has lower holder, the upside that the inside of uide bushing is close to lower holder is provided with the holder, the cross-section of holder and last holder is the annular of quarter down.

Preferably, the fixed sleeve is fixedly installed at the top of the guide sleeve, the slider is in a flat cylindrical shape, and the slider is slidably connected inside the fixed sleeve.

Preferably, the inside of slider is run through and is provided with the removable pin, the upper end of removable pin is provided with the handle, the outside fixed sleeving's of removable pin upper end movable mounting has the spring, fixed connection between removable pin and the slider, the lower extreme of removable pin extends to the upper end of supreme holder, just fixed connection between the lower extreme of removable pin and the upper end of last holder.

Compared with the prior art, the utility model has the following beneficial effects:

1. firstly, the handle is pulled manually, so that the movable pin moves upwards, the movable pin drives the upper clamping piece to move upwards, the lower clamping piece and the upper clamping piece are opened, meanwhile, the movable pin moves upwards to drive the sliding block to slide upwards on the inner side of the fixed sleeve, so that the purpose of compressing a spring at the upper end of the fixed sleeve is achieved, a cable to be detected penetrates through the guide sleeve to enter between the lower clamping piece and the upper clamping piece and then penetrates through the inner side of the guide wheel of the guide mechanism, so that the joint of a lead is positioned at the middle position inside the support table, at the moment, two ends of the cable are pulled, so that the purpose of tightening the cable is achieved, at the moment, the handle is loosened, the spring resets under the action of the self elasticity, the spring pushes the sliding block to move downwards, so that the movable pin is driven to move downwards, so that the upper clamping piece moves downwards to clamp the cable between the lower clamping piece and the upper clamping piece, the tight cable can be positioned by the positioning mechanism, so that the cable is prevented from loosening.

2. The cable detection device has the advantages that the guiding effect can be achieved through the guiding mechanism, the part to be detected of the cable is supported to be in a horizontal state, the cable can be kept in a fixed state when being detected through the cooperation between the guiding mechanism and the positioning mechanism, and the detection result of the experiment is accurate.

Drawings

FIG. 1 is a schematic view of an overall structure of an accelerated aging test platform for a power cable intermediate joint through cold and heat circulation;

FIG. 2 is a schematic view of an overall sectioning structure of an accelerated wetting and aging test platform for cold and heat circulation of an intermediate joint of a power cable according to the utility model;

FIG. 3 is an enlarged schematic view of part A of an accelerated wetting and aging test platform for cold and heat circulation of an intermediate joint of a power cable according to the present invention;

FIG. 4 is an enlarged schematic view of part B of the test platform for accelerated aging due to damp caused by cold and heat circulation of the intermediate joint of the power cable;

fig. 5 is a schematic structural view of a positioning mechanism of an accelerated wetting and aging test platform for cold and heat circulation of an intermediate joint of a power cable.

In the figure: 1. a support table; 2. supporting legs; 3. detecting the accommodating box; 4. heating a tube; 5. a sealing cover; 6. a guide mechanism; 61. fixing the rod; 62. a fixed mount; 63. a guide wheel; 7. a positioning mechanism; 71. a support frame; 72. a guide sleeve; 73. a lower clamping member; 74. an upper clamping member; 75. fixing the sleeve; 76. a slider; 77. a movable pin; 78. a handle; 79. a spring; 8. and (4) conducting wires.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-5, ageing experiment platform wets with higher speed in power cable intermediate head cold and hot circulation, including a supporting bench 1, the lower extreme of supporting bench 1 is provided with four groups of supporting legss 2, the upper end fixed mounting of supporting bench 1 has the detection to hold case 3, the inside bottom that the detection held case 3 is installed heating pipe 4, the upper end that the detection held case 3 is installed airtight lid 5, the upper end of airtight lid 5 is close to both sides border department fixed mounting and is had positioning mechanism 7, the inside of supporting bench 1 is close to both sides inner wall department equal fixed mounting and is had guiding mechanism 6, run through between guiding mechanism 6 and the positioning mechanism 7 and be provided with wire 8.

The quantity of supporting legs 2 is four groups, and four groups of supporting legs 2 are fixed mounting respectively in four corners of the lower extreme of brace table 1, and airtight lid 5 rotates through the pivot with detecting between the containing box 3 to be connected.

Guiding mechanism 6 includes that fixed mounting is close to the dead lever 61 of both sides inner wall department in the inside that detects and hold case 3, and the one end fixedly connected with mount 62 of dead lever 61, and the inside of mount 62 is connected with leading wheel 63 through the pivot, and the contained angle between dead lever 61 and the horizontal plane is 30 degrees.

Can play the guide effect through guiding mechanism 6, wait to detect the position with the cable and support into the horizontality, can make the cable wait to keep a fixed state when detecting through cooperation between guiding mechanism 6 and the positioning mechanism 7 for the testing result of experiment is more accurate.

The positioning mechanism 7 comprises two groups of supporting frames 71 fixedly installed at the upper end edge of the closed cover 5, the upper ends of the supporting frames 71 are fixedly connected with guide sleeves 72, lower clamping pieces 73 are fixedly installed at the bottom of the inner portions of the guide sleeves 72, upper clamping pieces 74 are arranged on the upper sides, close to the lower clamping pieces 73, of the inner portions of the guide sleeves 72, the sections of the lower clamping pieces 73 and the upper clamping pieces 74 are in a quarter ring shape, fixing sleeves 75 are fixedly installed at the tops of the guide sleeves 72, the sliders 76 are in flat cylindrical shapes, the sliders 76 are connected inside the fixing sleeves 75 in a sliding mode, movable pins 77 penetrate through the inner portions of the sliders 76, handles 78 are arranged at the upper ends of the movable pins 77, springs 79 are movably installed at the upper ends of the outer fixing sleeves 75 of the movable pins 77, the movable pins 77 are fixedly connected with the sliders 76, the lower ends of the movable pins 77 extend to the upper ends of the upper clamping pieces 74, and the lower ends of the movable pins 77 and the upper clamping pieces 74 are fixedly connected.

The pull handle 78 is manually pulled, so that the movable pin 77 is moved upward, so that the movable pin 77 moves the upper clamp 74 upward, thereby achieving the purpose of opening between the lower clamping piece 73 and the upper clamping piece 74, and simultaneously, the movable pin 77 moves upwards to drive the slide block 76 to slide upwards on the inner side of the fixed sleeve 75, thereby achieving the purpose of compressing the spring 79 at the upper end of the fixing sleeve 75, the cable to be detected passes through the guide sleeve 72, enters between the lower clamping piece 73 and the upper clamping piece 74, passes through the inner side of the guide wheel 63 of the guide mechanism 6, so that the joint of the lead is positioned at the middle position in the support table 1, and the two ends of the cable are pulled, thereby achieving the purpose of tightening the cable, at the moment, the handle 78 is loosened, the spring 79 is reset under the action of the elasticity of the spring 79, the spring 79 pushes the slide block 76 to move downwards, thereby moving the movable pin 77 downward to achieve the purpose of moving the upper clamping member 74 downward to clamp the cable between the lower clamping member 73 and the upper clamping member 74.

The working principle is as follows:

when in use, firstly, the handle 78 is pulled manually, so that the movable pin 77 moves upwards, so that the movable pin 77 drives the upper clamping piece 74 to move upwards, so that the purpose of opening the space between the lower clamping piece 73 and the upper clamping piece 74 is achieved, meanwhile, the movable pin 77 moves upwards to drive the slide block 76 to slide upwards on the inner side of the fixed sleeve 75, so that the purpose of compressing the spring 79 at the upper end of the fixed sleeve 75 is achieved, a cable to be detected penetrates through the guide sleeve 72, enters the space between the lower clamping piece 73 and the upper clamping piece 74, then penetrates through the inner side of the guide wheel 63 of the guide mechanism 6, so that the joint of a lead is positioned at the middle position inside the support platform 1, the two ends of the cable are pulled, so that the purpose of tightening the cable is achieved, at the moment, the handle 78 is loosened, the spring 79 resets under the self elastic force, the spring 79 pushes the slide block 76 to move downwards, so that the movable pin 77 is driven to move downwards, thereby reach and make last holder 74 move down and move down the cable centre gripping under between holder 73 and last holder 74, can live the cable location of tightening through positioning mechanism 7, prevent that the cable is not hard up, can play the guide effect through guiding mechanism 6, wait to detect the position with the cable and support into the horizontality, cooperation can make the cable wait to keep a fixed state when detecting through between guiding mechanism 6 and the positioning mechanism 7, make the testing result of experiment more accurate, the joint department of wire 8 is crossed to the inside watering that will prop up supporting bench 1 during the experiment, can give the inside heating that detects and hold case 3 through heating pipe 4, in order to be ready for the experiment needs.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a power cable intermediate head cold and hot circulation is ageing experiment platform that wets with higher speed, includes brace table (1), its characterized in that: the lower extreme of brace table (1) is provided with four groups of supporting legss (2), the upper end fixed mounting of brace table (1) has the detection to hold case (3), detect the inside bottom that holds case (3) and install heating pipe (4), detect the upper end that holds case (3) and install airtight lid (5), the upper end of airtight lid (5) is close to both sides border department fixed mounting and has positioning mechanism (7), the inside of brace table (1) is close to both sides inner wall department equal fixed mounting and has guiding mechanism (6), it is provided with wire (8) to run through between guiding mechanism (6) and positioning mechanism (7).

2. The power cable intermediate joint cold and hot circulation accelerated damp aging experiment platform according to claim 1, characterized in that: the number of the supporting legs (2) is four, the four supporting legs (2) are respectively and fixedly installed at four corners of the lower end of the supporting table (1), and the closed cover (5) is rotatably connected with the detection containing box (3) through a rotating shaft.

3. The power cable intermediate joint cold and hot circulation accelerated damp aging experiment platform according to claim 1, characterized in that: guiding mechanism (6) are close to dead lever (61) of both sides inner wall department including fixed mounting in the inside that detects containing case (3), the one end fixedly connected with mount (62) of dead lever (61), the inside of mount (62) is connected with leading wheel (63) through the pivot, the contained angle between dead lever (61) and the horizontal plane is 30 degrees.

4. The power cable intermediate joint cold and hot circulation accelerated damp aging experiment platform according to claim 1, characterized in that: positioning mechanism (7) are including two sets of support frames (71) of fixed mounting in the upper end edge of airtight lid (5), the upper end fixedly connected with uide bushing (72) of support frame (71), the inside bottom fixed mounting of uide bushing (72) has lower holder (73), the inside upside that is close to lower holder (73) of uide bushing (72) is provided with holder (74), holder (73) and the cross-section of last holder (74) are the annular of quarter down.

5. The power cable intermediate joint cold and hot circulation accelerated damp aging experiment platform according to claim 4, characterized in that: the fixed sleeve (75) is fixedly arranged at the top of the guide sleeve (72), the sliding block (76) is in a flat cylindrical shape, and the sliding block (76) is connected inside the fixed sleeve (75) in a sliding mode.

6. The power cable intermediate joint cold and hot circulation accelerated damp aging experiment platform according to claim 5, characterized in that: the inside of slider (76) is run through and is provided with activity round pin (77), the upper end of activity round pin (77) is provided with handle (78), the upper end movable mounting of the outside fixed sleeve pipe (75) of activity round pin (77) has spring (79), fixed connection between activity round pin (77) and slider (76), the lower extreme of activity round pin (77) extends to the upper end of supreme holder (74), just fixed connection between the lower extreme of activity round pin (77) and the upper end of last holder (74).

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