CN114136478A - Non-invasive transformer temperature monitoring device, equipment and method - Google Patents
Non-invasive transformer temperature monitoring device, equipment and method Download PDFInfo
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- CN114136478A CN114136478A CN202111446043.9A CN202111446043A CN114136478A CN 114136478 A CN114136478 A CN 114136478A CN 202111446043 A CN202111446043 A CN 202111446043A CN 114136478 A CN114136478 A CN 114136478A
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- G—PHYSICS
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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Abstract
The invention relates to a device, equipment and a method for monitoring the temperature of a non-invasive transformer, which comprises a metal protective cover; the bottom surface of the front shell of the metal protective cover is provided with a plurality of strong magnets so as to be adsorbed on the outer side wall of the transformer oil tank shell; the bottom surface of the front shell is provided with a front-end temperature-sensing metal base, the through hole of the front-end temperature-sensing metal base is internally provided with an armor Pt100, the exposed end surface of the front-end temperature-sensing metal base protrudes out of or is flush with the exposed end surface of the armor Pt100, and the exposed end surface of the front-end temperature-sensing metal base protrudes out of the bottom surface of the metal protective cover and is used for being in contact with the outer side wall of the transformer oil tank shell; the heat-insulating silica gel is arranged on the front-end temperature-sensing metal base, is used for encapsulating the front-end temperature-sensing metal base and is filled between the front-end temperature-sensing metal base and the through hole of the front shell, and is also filled on the inner surface of the bottom surface of the front shell.
Description
Technical Field
The invention relates to a device, equipment and a method for monitoring the temperature of a non-invasive transformer, belonging to the technical field of power transformers.
Background
In a power system, an oil-immersed transformer is used as one of main devices of the power system, and the operational reliability of the oil-immersed transformer is directly related to whether a power grid system can safely operate or not.
The temperature monitoring of the transformer is an important means for measuring the real-time operation condition of the transformer and determining the safe operation of the transformer, and is also one of important conditions for realizing the unattended operation of the comprehensive automatic transformer substation, so the importance of the temperature monitoring is self-evident. At present, most of domestic transformers use oil level temperature (top oil temperature) as switching signals for protecting safe operation of the transformers, even for protecting tripping, the oil level temperature is used as a judgment basis of a transformer monitoring device, and the purpose of ensuring the safe operation of the transformers is achieved by monitoring the top oil temperature.
Along with the continuous improvement of the automation level of safe power utilization and distribution networks, the oil temperature of high-voltage electrical equipment such as a transformer and the like is directly monitored except for monitoring electrical parameters, so that the method has very important significance for improving the safe operation of the equipment, prolonging the insulation life of the equipment, immediately judging the actual load capacity of the equipment, furthest exerting the power transmission and transformation potential of the transformer to improve the economic benefit of the equipment and the like.
As an important parameter for the operation of the oil-immersed transformer, the oil surface temperature has a strict temperature alarm limit value. The limit value of the top oil temperature in the transformer operation is specified in DL/T572-2010 Power Transformer operation Specification:
1) the oil temperature of the top layer of the oil immersed self-cooling or air-cooling transformer is generally not more than 85 ℃ and not more than 95 ℃ at most;
2) the oil temperature of the top layer of the forced oil circulation air-cooled transformer is generally not more than 75 ℃ and not more than 85 ℃ at most;
3) the oil temperature of the top layer of the forced oil circulation water-cooled transformer is generally not more than 60 ℃ and is not more than 70 ℃ at most;
the oil surface temperature is used as one of judgment bases for safe operation of the oil-immersed transformer, the overhigh oil surface temperature or alarm should be immediately noticed by transformer maintainers, and the transformer stops operating once the temperature exceeds the maximum value. The causes of the abnormal temperature of the oil surface of the transformer mainly comprise:
1) temperature anomaly due to internal failure
When the transformer temperature is abnormal due to factors such as heat generated by the coil discharging to the screen and the like caused by the fact that the coil discharges electricity to the screen and the internal lead connector generates heat, the iron core is subjected to multipoint grounding to increase the eddy current and overheat, leakage magnetic flux of zero-sequence unbalanced current and the like forms a loop with an iron oil tank, gas or differential protection action is also carried out, oil injection of an explosion-proof pipe or a pressure release valve is possible when the fault is serious, and at the moment, the transformer immediately stops running to be checked.
2) Abnormal operation of the cooler causes temperature abnormality
The abnormal operation or the fault of the cooler, such as the stop of the submersible pump, the damage of the fan, the fouling of the heat dissipation pipeline, the poor cooling efficiency, the non-opening of the valve of the radiator and the like, causes the abnormal temperature.
3) Oil level temperature indicators having errors or indicating failure
At present, the monitoring of the oil surface temperature of the transformer mainly adopts two methods, namely a conventional oil surface thermometer and an optical fiber temperature sensor, wherein the oil surface thermometer of an armored Pt100 sensor is adopted, so that the price is low and the use is wide; the optical fiber sensor is high in price, complex in installation and few in use.
However, the following disadvantages exist in monitoring the oil level temperature of the transformer by using a conventional oil level thermometer:
1) the installation is complicated. The thermometer seat needs to be welded in the production and manufacturing process of the transformer, oil is filled in the thermometer seat during field installation, and then the armored Pt100 sensor is inserted into the thermometer seat.
2) The installation position is limited, two thermometer seats are reserved in a common transformer, and therefore only two armored Pt100 sensors can be installed.
3) Temporary monitoring of local overheating of the transformer cannot be achieved. The transformer may overheat during operation due to leakage flux at a local location on the surface of the tank where it is not possible to weld the thermometer holder, and therefore a conventional oil level thermometer cannot be used.
For the transformer which runs in an electrified way, the conventional oil surface temperature signal is occupied, and the newly added integrated online monitoring system cannot monitor the oil surface temperature.
Disclosure of Invention
The invention provides a device, equipment and a method for monitoring the temperature of a non-invasive transformer. In order to solve the defects, discover the abnormality of the oil surface temperature of the transformer in time, early discover the problems and take effective preventive measures in time, reduce the transformer accidents and prolong the service life of the transformer, the invention provides an external adsorbable online monitoring device of the oil surface temperature of the transformer, namely a non-invasive monitoring device of the temperature of the transformer. The method is simple to install, the installation position is not limited, the oil surface temperature of the transformer in operation can be monitored in real time at any position of the oil tank of the transformer, the abnormal oil surface temperature of the transformer can be found in time, and the operation reliability of the oil-immersed transformer is improved.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a non-invasive transformer temperature monitoring device comprises a metal protective cover; the bottom surface of the front shell of the metal protective cover is provided with a plurality of strong magnets so as to be adsorbed on the outer side wall of the transformer oil tank shell; the bottom surface of the front shell is provided with a front-end temperature-sensing metal base, the through hole of the front-end temperature-sensing metal base is internally provided with an armor Pt100, the exposed end surface of the front-end temperature-sensing metal base protrudes out of or is flush with the exposed end surface of the armor Pt100, and the exposed end surface of the front-end temperature-sensing metal base protrudes out of the bottom surface of the metal protective cover and is used for being in contact with the outer side wall of the transformer oil tank shell; the front-end temperature-sensing metal base is provided with heat-insulating silica gel, the heat-insulating silica gel is used for encapsulating the front-end temperature-sensing metal base and is filled between the front-end temperature-sensing metal base and the through hole of the front shell, the heat-insulating silica gel is also filled on the inner surface of the bottom surface of the front shell, a circuit board is arranged in the front shell, and the back surface of the circuit board is attached to the heat-insulating silica gel and is electrically connected with the armor Pt 100; the circuit board is fixed on the metal protective cover through screws;
the front shell is provided with a waterproof interface for installing a waterproof connector and inserting a temperature signal cable electrically connected with the circuit board.
As a further improvement of the above technical solution:
a rear cover body is buckled on the front shell body;
the waterproof interface and the front end temperature sensing metal base are different;
the bottom surface of the front shell of the metal protective cover is provided with an adsorption part, the adsorption part comprises a clamping inner spigot on the bottom surface of the front shell of the metal protective cover, a flap type baffle is arranged outside the clamping inner spigot, and an inner process concave part is arranged on the top wall of the clamping inner spigot;
the powerful magnet comprises a magnet suction foot, a foot suction necking part is arranged on the magnet suction foot, and a petal clamping head is arranged at the upper part of the foot suction necking part;
the petal clamping heads are distributed with lead-in inclined planes;
a spring pad is arranged on the petal clamp head;
the petal dop enters into the tang in the screens from petal formula baffle neutral position, then, is sheltered from by petal formula baffle after the petal dop is rotatory to carry out elastic support through the spring pad.
A device for a non-invasive transformer temperature monitoring device is used for assembling partial components of the monitoring device; the equipment comprises a strip conveying line for realizing the connection of all stations, wherein the stations at least comprise a first assembling station, a second arranging station, a third assembling station, a fourth gluing station, a fifth installing station and/or a sixth testing station;
at a first assembly station, a powerful magnet is mounted on the bottom surface of the front shell;
a manipulator or a manual work is arranged at the second sorting station to adjust the front shell on the strip conveying line;
the third assembling station is used for installing the front-end temperature-sensing metal base on the front shell;
the fourth gluing station is arranged on the gluing device and a matched manipulator or manual work and is used for encapsulating the front-end temperature-sensing metal base;
at the fifth installation station, a mechanical arm or a manual work is matched for installing the circuit board and the waterproof connector,
a detection circuit and a heater are arranged at the sixth test station; the heater is used for temperature heating, and supporting manipulator or manual work are used for contacting armor Pt100 with the heater, and the detection circuitry is used for connecing the circuit board to detect armor Pt100 and circuit board.
As a further improvement of the above technical solution:
at the first assembly station, a front shell blanking device is arranged above the strip transmission line, a footing feeding device is arranged below the strip transmission line, and a footing mounting device is arranged below the footing feeding device;
a spacing gap is provided on the strip conveyor line so that the foot mounting means passes upwardly above the strip conveyor line.
The front shell blanking device comprises a front shell bearing channel which is vertically arranged and used for storing a front shell, a falling opening is arranged right below the front shell bearing channel, and a side baffle which swings downwards in a unidirectional way at the side wall of the falling opening is hinged with a reset baffle and a swing hinged baffle;
at least one side baffle hinged reset baffle and the swinging hinged baffle are oppositely arranged at the lower side part of the falling opening;
a clamping bent arm is arranged on the back of the swing hinged baffle, and a lateral process notch is arranged on the channel side wall of the front shell bearing channel above the swing hinged baffle to correspond to the clamping bent arm;
the side process notch corresponds to the waterproof interface of the front shell positioned at the secondary bottom layer, so that when the swing hinged baffle swings under the swing hinged baffle, the clamping bent arm enters the waterproof interface from the side process notch to block the waterproof interface from falling; when the swing hinge baffle goes up the swing and resets, screens curved arm leaves waterproof interface to make the procapsid of inferior bottom layer fall the one deck, the absorption portion of the procapsid of bottommost exposes the setting from the whereabouts mouth.
The bottom foot feeding device comprises an output waiting station arranged right below the first assembling station, three groups of first conveying side conveying belts which are arranged side by side and provided with first upward swinging C-shaped cards, a middle conveying side conveying belt provided with middle upward swinging C-shaped cards and a third conveying side conveying belt provided with third upward swinging C-shaped cards;
a first middle channel is arranged on one side of the first conveying side conveyor belt and one side of the middle conveying side conveyor belt, and a second middle channel is arranged on the other side of the third conveying side conveyor belt and the other side of the middle conveying side conveyor belt; the advancing directions of the powerful magnets in the first middle channel and the second middle channel are opposite;
in the first middle channel, the first upper swing C-shaped clamp and the middle upper swing C-shaped clamp are clamped with the pin-sucking necking part of the powerful magnet;
in the second middle channel, the third upper swing C-shaped clamp and the middle upper swing C-shaped clamp are clamped with the pin-sucking necking part of the powerful magnet;
the middle part of the middle conveying side conveying belt is positioned at an output waiting station; the widths of the first middle channel and the second middle channel are larger than the maximum width of the powerful magnet;
the output ends of the first intermediate channel and the second intermediate channel are positioned at the output waiting station.
The bottom foot mounting device comprises a lifting upper top seat controlled by a manipulator to lift; a main driving wheel part and a plurality of linkage mounting wheel shafts which are in transmission with the main driving wheel part are arranged on the lifting upper top seat; the magnet suction foot is square, elliptical or hexagonal in shape;
the top of the linkage mounting wheel shaft is provided with a profiling rotating sleeve, the shape of the inner cavity of the profiling rotating sleeve is matched with the shape of the magnet suction foot, and the profiling rotating sleeve is used for driving the magnet suction foot to swing for a set angle; an electromagnetic bottom plate is arranged on the bottom surface of the profiling rotating sleeve and is used for attracting or repelling the magnet attraction pin after being electrified.
A base mounting device is arranged at the third assembly station and comprises a transverse vibration seat conveying channel, wherein the seat conveying terminal is arranged above the strip conveying line; a baffle plate which swings and is split downwards is arranged at the terminal of the feeding seat, and a descending pressure head with a process hollow channel is arranged above the baffle plate; the descending pressure head is used for installing a front-end temperature-sensing metal base with a prefabricated armor Pt100 at a through hole on the bottom surface of the front shell, and the process hollow channel is used for accommodating the upper part of the armor Pt 100.
A method for assembling a device for monitoring the temperature of a non-invasive transformer, by means of a strip transmission line; performing at least the following steps;
s1, at the first assembling station, firstly, a powerful magnet is installed on the bottom surface of the front shell; then, the front case is output through the strip line;
s2, at the second arranging station, the front shell is adjusted on the strip transmission line through a mechanical arm or a manual work, and whether the installation position of the powerful magnet is correct is detected;
s3, mounting the front temperature sensing metal base on the front shell at the third assembling station; firstly, a front-end temperature sensing metal base with prefabricated armored Pt100 is conveyed to the terminal end of a conveying seat through a transverse vibration conveying seat channel; then, a descending pressure head presses down the front-end temperature sensing metal base to open the split baffle which swings downwards, and meanwhile, the upper part of the armor Pt100 is accommodated through a process hollow channel; secondly, the front-end temperature sensing metal base is arranged on the front shell by the descending pressure head;
s4, potting the front-end temperature-sensing metal base at a fourth gluing station through a gluing device and a matched manipulator or manpower;
s5, mounting the circuit board and the waterproof connector at a fifth mounting station by a matched manipulator or a worker;
and S6, at a sixth test station, a matched manipulator or a person contacts the armor Pt100 with the heater, and the detection circuit is connected with the circuit board so as to detect the armor Pt100 and the circuit board.
As a further improvement of the above technical solution:
in the step S1, in step S1,
s3.1, placing the front shell into a front shell blanking device one by one, and enabling the waterproof interface to face a side process gap;
s3.2, in the first middle channel, the first upward swinging C-shaped card and the pin-sucking necking part of the middle upward swinging C-shaped card clamped strong magnet move forward to reach an output waiting station, and simultaneously, in the second middle channel, the third upward swinging C-shaped card and the pin-sucking necking part of the middle upward swinging C-shaped card clamped strong magnet move forward reversely to reach the output waiting station;
s3.3, firstly, the lifting upper footstock is controlled by a manipulator to lift, so that the profiling rotating sleeve enters the corresponding first middle channel and the second middle channel, and the corresponding magnet suction foot is lifted; then, the magnet suction foot is lifted to pass through a first assembly station of the strip conveying line, so that the petal-shaped clamping head enters a petal-shaped baffle plate neutral position and enters a clamping inner spigot; secondly, the main driving wheel part drives a plurality of linkage mounting wheel shafts to rotate; thirdly, the petal clamp head is shielded by the petal type baffle after rotating and is elastically supported by the spring cushion; then, the electromagnetic bottom plate is electrified and then used for attracting the magnet suction pins; then, the lifting upper top seat descends to enable the electromagnetic bottom plate to drive the magnet suction pin to descend, the front shell touches the side stop hinged reset baffle and the swinging hinged baffle to swing under the action of overcoming the spring force, and the clamping bent arm enters the waterproof interface from the side process notch to block the front shell of the secondary bottom layer from falling; then, when the front shell falls and is separated from the swing hinged baffle, and the swing hinged baffle swings and resets on the spring force, the clamping bent arm leaves the waterproof interface, so that the front shell at the secondary bottom layer falls by one layer; the front shell falls onto the first assembly station; later, the electromagnetic bottom plate is reversely electrified and then is used for repelling and separating from the magnet attraction pin.
The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use. Aiming at the problem that the installation of the conventional oil surface thermometer on the transformer is limited during the operation, the existing installation mode is analyzed and researched, and a new installation method is provided. The method is simple to install, the installation position is not limited, the oil surface temperature of the transformer in operation can be monitored in real time at any position of the oil tank of the transformer, the abnormity of the oil surface temperature of the transformer can be found in time, and the operation reliability of the oil-immersed transformer is improved.
Drawings
Fig. 1 is a schematic diagram of the use structure of the invention.
Fig. 2 is a schematic bottom structure of the present invention.
Fig. 3 is a schematic view of the structure of fig. 2 in the direction of a-a.
Fig. 4 is a schematic structural diagram of an improved embodiment of the invention.
Fig. 5 is a partial structural schematic diagram of the present invention.
Fig. 6 is an assembled overall structure diagram of the present invention.
Fig. 7 is a schematic view of the front shell load bearing channel structure of the present invention.
Fig. 8 is a schematic diagram of a second intermediate passage use structure of the present invention.
Fig. 9 is a schematic view of the electromagnetic backplane structure of the present invention.
Wherein: A. a transformer tank housing; B. an external adsorbable temperature sensor; 1. a strong magnet; 2. a front end temperature sensing metal base; 3. a sheath Pt 100; 4. a circuit board; 5. a metal shield; 6. a waterproof joint; 7. heat-insulating silica gel; 8. a screw; 9. a rear cover body; 10. a front housing; 11. an adsorption part; 12. a flap type baffle; 13. a clamping inner spigot; 14. an inner process recess; 15. a magnet attracts a foot; 16. the feet are sucked and the neck is contracted; 17. a petal clamp head; 18. leading in an inclined plane; 19. a spring pad; 20. a ribbon transport line; 21. a first assembly station; 22. a second finishing station; 23. a third assembly station; 24. a fourth gluing station; 25. a fifth mounting station; 26. a sixth test station; 27. a front shell blanking device; 28. a footing feeding device; 29. a footing mounting device; 30. a base mounting device; 31. a gluing device; 32. a front shell carrying channel; 33. a drop opening; 34. the side baffle is hinged with a reset baffle; 35. a swing hinged baffle; 36. a clamping bent arm; 37. a lateral process notch; 38. a first conveyance-side conveyance belt; 39. a middle conveying side conveyor belt; 40. a third conveyance-side conveyance belt; 41. a first up-swing C-card; 42. swinging the C-shaped card on the middle part; 43. swinging the C-shaped card upwards; 44. a first intermediate channel; 45. a second intermediate channel; 46. lifting the upper footstock; 47. a main drive wheel section; 48. mounting wheel shafts in a linkage manner; 49. a profiling rotating sleeve; 50. an electromagnetic backplane. 51. A transverse vibration seat conveying channel; 52. a seat delivery terminal; 53. a downward ram; 54. a process hollow channel; 55. a waterproof interface; 56. and outputting the waiting work station.
Detailed Description
The invention provides an external adsorbable online monitoring device for the oil surface temperature of a transformer. The method is simple to install, the installation position is not limited, the oil level temperature of the transformer in operation can be monitored in real time at any position of the transformer oil tank, the abnormity of the oil level temperature of the transformer can be found in time, and the operation reliability of the oil-immersed transformer is improved.
As shown in fig. 1-9, six powerful magnets 1 are arranged on the bottom surface of the external adsorbable temperature sensor and used for being fixed on a transformer oil tank. The miniature armor Pt100 is tightly pressed at the center of the front-end temperature-sensing metal base 2, the miniature armor Pt100 cannot protrude out of the front-end temperature-sensing metal base 2, and the front-end temperature-sensing metal base 2 is 1mm higher than the metal protective cover 5 and is used for being in tight contact with a transformer oil tank. The front-end temperature-sensing metal base 2 is encapsulated by heat-insulating silica gel 7, and the heat-insulating silica gel 7 has two purposes, namely, the front-end temperature-sensing metal base 2 is isolated from the surrounding air, so that the monitoring accuracy of the oil surface temperature is ensured; secondly, the temperature sensing metal base 2 has elasticity, and the close contact between the front end temperature sensing metal base and the transformer oil tank is ensured. The heat insulation silica gel 7 is pressed tightly by the circuit board 4 and is fixed on the metal protective cover 5 by 4 screws 8. The waterproof joint 6 is used for locking and sealing the temperature signal cable. Through metal protection casing 5 and water joint 6, the protection level of external adsorbable formula sensor reaches IP66, can be used to outdoor long-term on-line monitoring.
The invention is fixed on the transformer oil tank through a strong magnet. The front-end temperature-sensing metal base is in close contact with the transformer oil tank, and the temperature of the oil surface of the transformer is monitored through the miniature armor Pt100 arranged on the front-end temperature-sensing metal base. The front-end temperature-sensing metal base is isolated from the ambient air through the heat-insulating silica gel, and the accuracy of monitoring the oil surface temperature is guaranteed. Through metal protection casing and water joint, the protection level of external adsorbable formula sensor reaches IP66, can be used to outdoor long-term on-line monitoring.
The method is simple to install, the installation position is not limited, the oil surface temperature of the transformer in operation can be monitored in real time at any position of the oil tank of the transformer, the abnormity of the oil surface temperature of the transformer can be found in time, and the operation reliability of the oil-immersed transformer is improved.
As an embodiment, as shown in fig. 1 to 9, the non-invasive transformer temperature monitoring device of the present embodiment includes a metal shield 5; a plurality of strong magnets 1 are arranged on the bottom surface of the front shell 10 of the metal protective cover 5 so as to be adsorbed on the outer side wall of the transformer oil tank shell; the bottom surface of the front shell 10 is provided with a front-end temperature-sensing metal base 2, the through hole of the front-end temperature-sensing metal base 2 is provided with an armor Pt100, the exposed end surface of the front-end temperature-sensing metal base 2 protrudes out of or is flush with the exposed end surface of the armor Pt100, and the exposed end surface of the front-end temperature-sensing metal base 2 protrudes out of the bottom surface of the metal protective cover 5 and is used for contacting with the outer side wall of the transformer oil tank shell; the front-end temperature-sensing metal base 2 is provided with heat-insulating silica gel 7, the heat-insulating silica gel 7 is used for encapsulating the front-end temperature-sensing metal base 2 and is filled between the front-end temperature-sensing metal base 2 and a through hole of the front shell 10, the heat-insulating silica gel 7 is also filled on the inner surface of the bottom surface of the front shell 10, a circuit board 4 is arranged in the front shell 10, and the back surface of the circuit board is attached to the heat-insulating silica gel 7 and is electrically connected with the armor Pt 100; the circuit board 4 is fixed on the metal protective cover 5 through a screw 8;
a waterproof interface 55 is provided on the front housing 10 for installing the waterproof connector 6 and inserting a temperature signal cable electrically connected to the circuit board 4.
A rear cover body 9 is buckled on the front shell body 10;
the waterproof interface 55 is opposite to the front end temperature sensing metal base 2;
an adsorption part 11 is arranged on the bottom surface of the front shell 10 of the metal shield 5, the adsorption part 11 comprises a clamping inner spigot 13 on the bottom surface of the front shell 10 of the metal shield 5, a flap type baffle plate 12 is arranged outside the clamping inner spigot 13, and an inner process concave part 14 is arranged on the top wall of the clamping inner spigot 13;
the powerful magnet 1 comprises a magnet suction foot 15, a foot suction necking part 16 is arranged on the magnet suction foot 15, and a petal clamping head 17 is arranged at the upper part of the foot suction necking part 16;
a lead-in inclined plane 18 is distributed on the petal clamp head 17;
a spring pad 19 is arranged on the petal clamp head 17;
the petal dop 17 enters the blocking inner spigot 13 from the neutral position of the petal type baffle plate 12, and then the petal dop 17 is shielded by the petal type baffle plate 12 after rotating and is elastically supported by the spring cushion 19.
The device of the non-invasive transformer temperature monitoring device of the embodiment is used for assembling partial components of the monitoring device; the equipment comprises a strip conveying line 20 for realizing the connection of all stations, wherein the stations at least comprise a first assembling station 21, a second arranging station 22, a third assembling station 23, a fourth gluing station 24, a fifth installing station 25 and/or a sixth testing station 26;
at the first assembling station 21, a powerful magnet 1 is mounted on the bottom surface of the front case 10;
at the second finishing station 22, a robot or a human is provided to adjust the front case 10 on the ribbon transport line 20;
at the third assembling station 23, for mounting the front end temperature sensitive metal chassis 2 on the front case 10;
the fourth gluing station 24 is arranged on the gluing device 31 and a matching manipulator or a manual work and is used for encapsulating the front-end temperature-sensing metal base 2;
in the fifth mounting station 25, a robot or a manual work is matched for mounting the circuit board 4 and the waterproof connector 6,
the sixth test station 26 is provided with a detection circuit and a heater; the heater is used for temperature heating, and supporting manipulator or manual work are used for making armor Pt100 contact with the heater, and detection circuitry is used for connecing circuit board 4 to detect armor Pt100 and circuit board.
At the first assembly station 21, a front shell blanking device 27 is arranged above the strip conveying line 20, a footing feeding device 28 is arranged below the strip conveying line 20, and a footing mounting device 29 is arranged below the footing feeding device 28;
a spacing gap is provided on the strip line 20 so that the foot mounting means 29 runs up over the strip line 20.
The front shell blanking device 27 comprises a vertically arranged front shell bearing channel 32 for storing the front shell 10, a falling port 33 is arranged right below the front shell bearing channel 32, and a side baffle hinged reset baffle 34 and a swinging hinged baffle 35 which swing downwards in a unidirectional way are arranged on the side wall of the falling port 33;
at least one side baffle hinged reset baffle 34 and a swinging hinged baffle 35 are oppositely arranged at the lower side part of the falling opening 33;
a clamping bent arm 36 is arranged on the back of the swing hinged baffle 35, and a lateral process notch 37 is arranged on the channel side wall of the front shell bearing channel 32 above the swing hinged baffle 35 so as to correspond to the clamping bent arm 36;
the lateral process notch 37 corresponds to the waterproof interface 55 of the front case 10 located in the second bottom layer, so that when the swing hinge shutter 35 swings downward, the retaining bent arm 36 enters the waterproof interface 55 from the lateral process notch 37, blocking it from falling; when the swing hinge shutter 35 is swung to be reset, the catching bent arm 36 is separated from the waterproof interface 55, so that the front case 10 of the second bottom layer is dropped by one layer, and the suction portion 11 of the front case 10 of the lowermost layer is exposed from the drop opening 33.
The bottom foot feeding device 28 comprises an output waiting station 56 arranged right below the first assembling station 21, three groups of first conveying side conveying belts 38 with first upper swinging C-shaped cards 41, middle conveying side conveying belts 39 with middle upper swinging C-shaped cards 42 and third conveying side conveying belts 40 with third upper swinging C-shaped cards 43 which are arranged side by side;
a first intermediate passage 44 is provided on one side of the first conveying-side belt 38 and the intermediate conveying-side belt 39, and a second intermediate passage 45 is provided on the other side of the third conveying-side belt 40 and the intermediate conveying-side belt 39; the strong magnet 1 advances in the opposite direction in the first middle channel 44 and the second middle channel 45;
in the first middle channel 44, the first upward swinging C-shaped clamp 41 and the middle upward swinging C-shaped clamp 42 are clamped with the foot-sucking necking part 16 of the powerful magnet 1;
in the second middle channel 45, the third upward swinging C-shaped clamp 43 and the middle upward swinging C-shaped clamp 42 are clamped with the foot-sucking necking part 16 of the powerful magnet 1;
the middle of the middle conveyance-side conveyor belt 39 is located at the output waiting station 56; the widths of the first intermediate channel 44 and the second intermediate channel 45 are greater than the maximum width of the powerful magnet 1;
the output ends of the first intermediate passage 44 and the second intermediate passage 45 are located at the output waiting station 56.
The foot mounting means 29 comprises a lifting upper top seat 46 which is controlled to lift by a robot; the lifting upper top seat 46 is provided with a main driving wheel part 47 and a plurality of linkage mounting wheel shafts 48 which are in transmission with the main driving wheel part 47; the magnet suction foot 15 is square, elliptical or hexagonal in shape;
the top of the linkage mounting wheel shaft 48 is provided with a profiling rotating sleeve 49, the shape of the inner cavity of the profiling rotating sleeve is matched with the shape of the magnet suction foot 15, and the profiling rotating sleeve is used for driving the magnet suction foot 15 to swing for a set angle; an electromagnetic bottom plate 50 is arranged on the bottom surface of the profiling rotating sleeve 49 and is used for attracting or repelling the magnet attraction foot 15 after being electrified.
At the third assembly station 23 there is provided a base mounting device 30 comprising a transverse oscillating shoe feeding channel 51 with a shoe feeding terminal 52 arranged above the ribbon transport line 20; a baffle plate swinging downwards and split is arranged at the terminal 52 of the feeding seat, and a descending pressure head 53 with a hollow technological channel 54 is arranged above the baffle plate; the descending ram 53 is used to mount the front temperature-sensitive metal base 2, which is prefabricated with the armor Pt100, at the through hole of the bottom surface of the front casing 10, and the process hollow passage 54 is used to receive the upper portion of the armor Pt 100.
The method of assembling the apparatus for monitoring the temperature of a non-invasive transformer of the present embodiment is carried out by means of a strip line 20; performing at least the following steps;
s1, in the first assembling station 21, first, the powerful magnet 1 is mounted on the bottom surface of the front case 10; then, the front case 10 is output through the strip line 20;
s2, at the second arranging station 22, the front case 10 is adjusted on the strip line 20 by a robot or a human and it is detected whether the mounting position of the powerful magnet 1 is correct;
s3, at the third assembling station 23, the front end temperature sensitive metal chassis 2 is mounted on the front case 10; firstly, a front-end temperature-sensing metal base 2 with prefabricated armor Pt100 is conveyed to a seat conveying terminal 52 through a transverse vibration seat conveying channel 51; then, the descending ram 53 presses down the front end temperature sensing metal base 2 to open the baffle swinging downward and facing open, and at the same time, the upper part of the armor Pt100 is accommodated through the process hollow channel 54; next, the down ram 53 mounts the front end temperature sensitive metal base 2 on the front housing 10;
s4, potting the front-end temperature-sensing metal base 2 at the fourth gluing station 24 through a gluing device 31 and a matched manipulator or manpower;
s5, installing the circuit board 4 and the waterproof connector 6 at the fifth installation station 25 by a matched manipulator or a worker;
s6, at the sixth testing station 26, a robot or a human is configured to contact the sheath Pt100 with the heater, and the testing circuit is connected to the circuit board 4 to test the sheath Pt100 and the circuit board.
In the step S1, in step S1,
s3.1, placing the front shell 10 into the front shell blanking device 27 one by one, so that the waterproof interface 55 faces to the side process gap 37;
s3.2, in the first middle channel 44, the first upward swinging C-shaped card 41 and the middle upward swinging C-shaped card 42 are connected with the pin-sucking necking part 16 of the powerful magnet 1 in a clamping mode and move forward to reach an output waiting station 56, and meanwhile, in the second middle channel 45, the third upward swinging C-shaped card 43 and the middle upward swinging C-shaped card 42 are connected with the pin-sucking necking part 16 of the powerful magnet 1 in a clamping mode and move forward reversely to reach the output waiting station 56;
s3.3, firstly, the lifting upper top seat 46 is controlled by a manipulator to lift, so that the profiling rotating sleeve 49 enters the corresponding first middle channel 44 and the second middle channel 45, and the corresponding magnet suction foot 15 is lifted; then, the magnet suction foot 15 is lifted to pass through a first assembly station 21 of the strip conveying line 20, so that the petal clamp head 17 enters the petal type baffle 12 in a neutral position and enters the clamping inner spigot 13; secondly, the main driving wheel part 47 drives a plurality of linkage mounting wheel shafts 48 to rotate; thirdly, the petal clamp head 17 is shielded by the petal type baffle 12 after rotating and is elastically supported by the spring pad 19; then, the electromagnetic bottom plate 50 is electrified and then used for attracting the magnet attraction pin 15; then, the lifting upper top seat 46 descends, so that the electromagnetic bottom plate 50 drives the magnet suction pin 15 to descend, the front shell 10 touches the side baffle hinged reset baffle 34 and the swinging hinged baffle 35 to swing under the action of spring force, the clamping bent arm 36 enters the waterproof interface 55 from the side process notch 37, and the front shell 10 of the secondary bottom layer is prevented from falling; subsequently, when the front case 10 falls and separates from the swing hinge baffle 35 and the swing hinge baffle 35 swings and resets on the spring force, the clamping bent arm 36 leaves the waterproof interface 55, so that the front case 10 at the next bottom layer falls by one layer; thereafter, the front case 10 falls onto the first assembling station 21; later, the electromagnetic bottom plate 50 is energized in the reverse direction for repelling and separating from the magnet attraction legs 15.
Referring to fig. 1-9, a powerful magnet 1, a front end temperature sensing metal base 2, an armor Pt100, a circuit board 4, a metal shield 5, a waterproof joint 6, a heat insulation silica gel 7, a screw 8, a rear cover 9, and a front housing 10 realize adsorbable electromagnetic attraction, the design is ingenious, flexible and convenient, preferably six adsorption parts 11, a petal type baffle 12, a clamping inner spigot 13, and a petal type chuck 17, through simulating the opening and closing mode of a pressure cooker, the inner process concave part 14 realizes positioning, the magnet adsorption foot 15 realizes electromagnetic adsorption, the foot adsorption neck part 16 is reasonable in process, and positioning and transmission are convenient to realize, the invention can select corresponding feet according to different requirements, thereby increasing universality, the lead-in inclined plane 18 is convenient to lead in and out, the spring pad 19 eliminates gaps, increases friction force, avoids loosening, the strip transmission line 20 realizes process transmission, and is an improvement of local equipment, therefore, conventional processes such as folding, buckling process, detection, marking, arrangement and the like are not described, conventional manipulators or operation tables are not described, and conventional parts such as a rack, a sealing element, a bearing and the like are not described. Improve first assembly station 21, compare in the tradition with the ingenious integration of procapsid whereabouts and sole assembly process, second arrangement station 22 can design electric eye etc, 23 cooperation vibration dishes etc. of third assembly station, fourth rubber coating station 24 carries out conventional embedment technology through the spreading machine, generally be epoxy etc., circuit board installation is realized to fifth installation station 25, circuit test is realized to sixth test station 26, through preceding shell unloader 27, footing loading attachment 28, footing installation device 29, base installation device 30, supporting operation is realized to rubber coating device 31. The front shell bearing channel 32 realizes bearing, the falling port 33 realizes falling shell, the shell can be placed above the falling port, the side baffle is hinged with the reset baffle 34, the swinging hinged baffle 35 can realize falling shell one by one, the limiting is realized through the torsion spring and the limiting block, the clamping bent arm 36 realizes clamping so as to be matched with the hinged baffle to stop the shell at the second top layer from falling, the side process notch 37 is matched to realize clamping so as to realize falling of the shell at the second bottom layer, the invention skillfully utilizes the first conveying side conveying belt 38, the middle conveying side conveying belt 39 and the third conveying side conveying belt 40 to be matched with single upward swinging, the first upward swinging C-shaped clamp 41 reset through gravity and spring force action, the middle upward swinging C-shaped clamp 42 and the third upward swinging C-shaped clamp 43 clamp the neck, thereby realizing the conveying of feet, the lifting is driven by the upper top seat 46, the main driving wheel part 47 and the linkage mounting wheel shaft 48 are driven by the belt, the integral installation is realized, the flap type baffle 12 which can be matched as the optimization has a back inclined surface, the leading-in inclined surface 18 is matched to realize the rotation clamping and positioning, the profile modeling rotating sleeve 49 realizes the adaptive rotation, the electromagnetic bottom plate 50 realizes the suction and the repulsion, the design is ingenious, the transverse vibration seat conveying channel 51, the seat conveying terminal 52, the downward pressure head 53 and the process hollow channel 54 realize the feeding and the installation.
The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known techniques.
Claims (10)
1. A non-invasive transformer temperature monitoring device is characterized in that: comprises a metal protective cover (5); a plurality of strong magnets (1) are arranged on the bottom surface of a front shell (10) of the metal protective cover (5) so as to be adsorbed on the outer side wall of the transformer oil tank shell; the bottom surface of the front shell (10) is provided with a front-end temperature-sensing metal base (2), a armor Pt100(3) is arranged in a through hole of the front-end temperature-sensing metal base (2), the exposed end surface of the front-end temperature-sensing metal base (2) protrudes out of or is flush with the exposed end surface of the armor Pt100(3), and the exposed end surface of the front-end temperature-sensing metal base (2) protrudes out of the bottom surface of the metal protective cover (5) and is used for being in contact with the outer side wall of the transformer oil tank shell; the front-end temperature-sensing metal base (2) is provided with a heat-insulating silica gel (7), the heat-insulating silica gel (7) is used for encapsulating the front-end temperature-sensing metal base (2) and is filled between the front-end temperature-sensing metal base (2) and a through hole of the front shell (10), the heat-insulating silica gel (7) is also filled on the inner surface of the bottom surface of the front shell (10), a circuit board (4) is arranged in the front shell (10), and the back surface of the circuit board is attached to the heat-insulating silica gel (7) and is electrically connected with the armor Pt100 (3); the circuit board (4) is fixed on the metal protective cover (5) through a screw (8);
the front shell (10) is provided with a waterproof interface (55) for installing a waterproof joint (6) and inserting a temperature signal cable electrically connected with the circuit board (4).
2. The non-invasive transformer temperature monitoring device according to claim 1, wherein: a rear cover body (9) is buckled on the front shell body (10);
the waterproof interface (55) and the front end temperature sensing metal base (2) are different in surface;
an adsorption part (11) is arranged on the bottom surface of the front shell (10) of the metal protective cover (5), the adsorption part (11) comprises a clamping inner spigot (13) arranged on the bottom surface of the front shell (10) of the metal protective cover (5), a flap type baffle plate (12) is arranged outside the clamping inner spigot (13), and an inner process concave part (14) is arranged on the top wall of the clamping inner spigot (13);
the powerful magnet (1) comprises a magnet suction foot (15), a foot suction necking part (16) is arranged on the magnet suction foot (15), and a petal clamping head (17) is arranged at the upper part of the foot suction necking part (16);
a lead-in inclined plane (18) is distributed on the petal clamping head (17);
a spring pad (19) is arranged on the petal clamp head (17);
the petal dop (17) enters the clamping inner spigot (13) from the free position of the petal type baffle (12), and then the petal type baffle (12) shields the petal type dop (17) after rotating and carries out elastic support through the spring pad (19).
3. An apparatus of a non-invasive transformer temperature monitoring device, characterized in that: a partial assembly for assembling the monitoring device; the equipment comprises a strip conveying line (20) for realizing the connection of all stations, wherein the stations at least comprise a first assembling station (21), a second arranging station (22), a third assembling station (23), a fourth gluing station (24), a fifth mounting station (25) and/or a sixth testing station (26);
at a first assembly station (21), a powerful magnet (1) is mounted on the bottom surface of the front shell (10);
at a second collating station (22), a manipulator or a human being is provided to adjust the front case (10) on the strip line (20);
in the third assembling station (23), the front end temperature sensing metal base (2) is arranged on the front shell (10);
the fourth gluing station (24) is arranged on the gluing device (31) and a matched manipulator or a manual work and is used for encapsulating the front-end temperature-sensing metal base (2);
a manipulator or a manual work is matched at a fifth mounting station (25) for mounting the circuit board (4) and the waterproof connector (6),
the sixth test stations (26) are provided with detection circuits and heaters; the heater is used for temperature heating, and supporting manipulator or manual work are used for contacting armor Pt100(3) with the heater, and detection circuitry is used for connecing circuit board (4) to detect armor Pt100(3) and circuit board.
4. The apparatus of the non-invasive transformer temperature monitoring device according to claim 3, wherein: at a first assembly station (21), a front shell blanking device (27) is arranged above the strip conveying line (20), a footing feeding device (28) is arranged below the strip conveying line (20), and a footing mounting device (29) is arranged below the footing feeding device (28);
a spacing gap is provided on the strip line (20) so that the foot mounting means (29) passes upwardly above the strip line (20).
5. The apparatus of the non-invasive transformer temperature monitoring device according to claim 4, wherein: the front shell blanking device (27) comprises a front shell bearing channel (32) which is vertically arranged and used for storing the front shell (10), a falling opening (33) is arranged right below the front shell bearing channel (32), and a side baffle which swings downwards in a unidirectional way at the side wall of the falling opening (33) is hinged with a reset baffle (34) and a swing hinge baffle (35);
at least one side baffle hinged reset baffle (34) and the swinging hinged baffle (35) are oppositely arranged at the lower side part of the falling opening (33);
a clamping bent arm (36) is arranged on the back of the swing hinged baffle (35), and a lateral process notch (37) is arranged on the channel side wall of the front shell bearing channel (32) above the swing hinged baffle (35) so as to correspond to the clamping bent arm (36);
the lateral process notch (37) corresponds to the waterproof interface (55) of the front shell (10) positioned at the bottom of the front shell, so that when the swing hinged baffle (35) swings downwards, the clamping bent arm (36) enters the waterproof interface (55) from the lateral process notch (37) and stops the waterproof interface from falling; when the swing hinged baffle (35) swings and resets, the clamping bent arm (36) leaves the waterproof interface (55), so that the front shell (10) at the bottom layer falls by one layer, and the adsorption part (11) of the front shell (10) at the bottommost layer is exposed from the falling opening (33).
6. The apparatus of the non-invasive transformer temperature monitoring device according to claim 4, wherein: the bottom foot feeding device (28) comprises an output waiting station (56) arranged right below the first assembling station (21) and three groups of side-by-side first conveying side conveying belts (38) with first upward swinging C-shaped cards (41), middle conveying side conveying belts (39) with middle upward swinging C-shaped cards (42) and third conveying side conveying belts (40) with third upward swinging C-shaped cards (43);
a first middle channel (44) is arranged on one side of the first conveying-side conveying belt (38) and the middle conveying-side conveying belt (39), and a second middle channel (45) is arranged on the other side of the third conveying-side conveying belt (40) and the middle conveying-side conveying belt (39); the advancing directions of the powerful magnet (1) in the first middle channel (44) and the second middle channel (45) are opposite;
in the first middle channel (44), the first upward swinging C-shaped clamp (41) and the middle upward swinging C-shaped clamp (42) are clamped with the foot sucking necking part (16) of the powerful magnet (1);
in a second middle channel (45), a third upward swinging C-shaped clamp (43) and a middle upward swinging C-shaped clamp (42) are clamped with a foot sucking necking part (16) of the powerful magnet (1);
the middle part of the middle conveying side conveyor belt (39) is positioned at the output waiting station (56); the widths of the first middle channel (44) and the second middle channel (45) are larger than the maximum width of the powerful magnet (1);
the output ends of the first intermediate channel (44) and the second intermediate channel (45) are positioned at an output waiting station (56).
7. The apparatus of the non-invasive transformer temperature monitoring device according to claim 4, wherein: the bottom foot mounting device (29) comprises a lifting upper top seat (46) controlled by a mechanical arm to lift; a main driving wheel part (47) and a plurality of linkage mounting wheel shafts (48) which are in transmission with the main driving wheel part (47) are arranged on the lifting upper top seat (46); the magnet suction foot (15) is square, elliptical or hexagonal in shape;
the top of the linkage mounting wheel shaft (48) is provided with a profiling rotating sleeve (49), the shape of the inner cavity of the profiling rotating sleeve is matched with the shape of the magnet suction foot (15) and is used for driving the magnet suction foot (15) to swing for a set angle; an electromagnetic bottom plate (50) is arranged on the bottom surface of the profiling rotating sleeve (49) and is used for attracting or repelling the magnet attraction foot (15) after being electrified.
8. The apparatus of the non-invasive transformer temperature monitoring device according to claim 3, wherein: a base mounting device (30) is arranged at the third assembly station (23) and comprises a transverse vibration seat conveying channel (51) with a seat conveying terminal (52) arranged above the strip conveying line (20); a baffle plate which swings and opens oppositely downwards is arranged at the terminal (52) of the feeding seat, and a descending pressure head (53) with a process hollow channel (54) is arranged above the baffle plate; the descending pressure head (53) is used for installing the front-end temperature-sensing metal base (2) which is prefabricated with the armor Pt100(3) at the through hole of the bottom surface of the front shell (10), and the process hollow channel (54) is used for accommodating the upper part of the armor Pt100 (3).
9. A method for assembling a non-invasive transformer temperature monitoring device is characterized in that: by means of a ribbon conveying line (20); performing at least the following steps;
s1, in the first assembling station (21), firstly, a strong magnet (1) is installed on the bottom surface of the front shell (10); then, the front case (10) is output through the strip line (20);
s2, in the second arranging station (22), the front case (10) is adjusted on the strip transmission line (20) through a mechanical arm or a manual work, and whether the installation position of the powerful magnet (1) is correct is detected;
s3, in the third assembling station (23), the front end temperature sensing metal base (2) is installed on the front shell (10); firstly, a front-end temperature sensing metal base (2) with a prefabricated armor Pt100(3) is conveyed to a seat conveying terminal (52) through a transverse vibration seat conveying channel (51); then, a descending pressure head (53) presses down the front end temperature sensing metal base (2) to open the split baffle plate which swings downwards, and meanwhile, the upper part of the armor Pt100(3) is accommodated through a process hollow channel (54); secondly, the temperature-sensing metal base (2) at the front end is arranged on the front shell (10) by the descending pressure head (53);
s4, potting the front-end temperature-sensing metal base (2) at a fourth gluing station (24) through a gluing device (31) and a matched manipulator or manpower;
s5, mounting the circuit board (4) and the waterproof connector (6) at a fifth mounting station (25) by a matched manipulator or a manual work;
s6, at the sixth test station (26), a matching manipulator or a person contacts the armor Pt100(3) with the heater, and the detection circuit is connected with the circuit board (4) so as to detect the armor Pt100(3) and the circuit board.
10. The method of assembling a non-invasive transformer temperature monitoring device according to claim 10, wherein: in the step S1, in step S1,
s3.1, placing the front shells (10) into a front shell blanking device (27) one by one, and enabling the waterproof interface (55) to face a side process gap (37);
s3.2, in the first middle channel (44), the foot sucking necking part (16) of the powerful magnet (1) clamped by the first upward swinging C-shaped card (41) and the middle upward swinging C-shaped card (42) moves forward to reach an output waiting station (56), and simultaneously, in the second middle channel (45), the foot sucking necking part (16) of the powerful magnet (1) clamped by the third upward swinging C-shaped card (43) and the middle upward swinging C-shaped card (42) moves forward reversely to reach the output waiting station (56);
s3.3, firstly, the lifting upper footstock (46) is controlled by a manipulator to lift, so that the profiling rotating sleeve (49) enters the corresponding first middle channel (44) and second middle channel (45), and the corresponding magnet suction foot (15) is lifted; then, the magnet suction foot (15) is lifted to pass through a first assembly station (21) of the strip conveying line (20), so that the petal-shaped clamping head (17) enters a petal-shaped baffle (12) in a free space and enters a clamping inner spigot (13); secondly, the main driving wheel part (47) drives a plurality of linkage mounting wheel shafts (48) to rotate; thirdly, the petal clamping head (17) is shielded by the petal type baffle (12) after rotating and is elastically supported by the spring pad (19); then, the electromagnetic bottom plate (50) is electrified and then used for attracting the magnet attraction pin (15); then, the lifting upper top seat (46) descends, so that the electromagnetic bottom plate (50) drives the magnet suction pin (15) to descend, the front shell (10) touches the side baffle hinged reset baffle (34) and the swinging hinged baffle (35) to swing under overcoming the spring force, the clamping bent arm (36) enters the waterproof interface (55) from the side process notch (37), and the front shell (10) of the secondary bottom layer is prevented from falling; then, when the front shell (10) falls and is separated from the swing hinged baffle (35), and the swing hinged baffle (35) swings and resets on the spring force, the clamping bent arm (36) leaves the waterproof interface (55), so that the front shell (10) at the bottom layer falls one layer; thereafter, the front case (10) falls down onto the first assembly station (21); then, the electromagnetic bottom plate (50) is electrified reversely and then is used for repelling and separating from the magnet attraction pin (15).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116337159A (en) * | 2023-05-31 | 2023-06-27 | 广东电网有限责任公司佛山供电局 | Monitoring device for transformer |
| CN118089851A (en) * | 2024-03-12 | 2024-05-28 | 保定天威新域科技发展有限公司 | Comprehensive on-line monitoring device and protection control method for transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08201184A (en) * | 1995-01-26 | 1996-08-09 | Yazaki Corp | Method and device for collecting and recording temperature information in vehicle |
| KR20030006153A (en) * | 2001-07-11 | 2003-01-23 | 지엠피바이오(주) | Temperature sensor using shape memory alloy and method for manufacturing the same |
| CN104166359A (en) * | 2014-08-22 | 2014-11-26 | 国网河南省电力公司漯河供电公司 | Adsorption type transformer oil temperature monitoring alarm device and use method |
| CN207675331U (en) * | 2017-12-26 | 2018-07-31 | 威胜电气有限公司 | Magnetic-type wireless temperature-measuring sensor |
| CN108534908A (en) * | 2018-03-23 | 2018-09-14 | 国网河北省电力有限公司电力科学研究院 | Transformer oil surface temperature sensor |
| KR102145393B1 (en) * | 2020-03-31 | 2020-08-18 | 권오주 | Wireless Small Sensor Device and Attachment Method for Self-Powering System Using Square and Bending Core |
| CN113352267A (en) * | 2021-05-20 | 2021-09-07 | 温州职业技术学院 | Thermometer preassembly assembly, equipment and process |
-
2021
- 2021-11-30 CN CN202111446043.9A patent/CN114136478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08201184A (en) * | 1995-01-26 | 1996-08-09 | Yazaki Corp | Method and device for collecting and recording temperature information in vehicle |
| KR20030006153A (en) * | 2001-07-11 | 2003-01-23 | 지엠피바이오(주) | Temperature sensor using shape memory alloy and method for manufacturing the same |
| CN104166359A (en) * | 2014-08-22 | 2014-11-26 | 国网河南省电力公司漯河供电公司 | Adsorption type transformer oil temperature monitoring alarm device and use method |
| CN207675331U (en) * | 2017-12-26 | 2018-07-31 | 威胜电气有限公司 | Magnetic-type wireless temperature-measuring sensor |
| CN108534908A (en) * | 2018-03-23 | 2018-09-14 | 国网河北省电力有限公司电力科学研究院 | Transformer oil surface temperature sensor |
| KR102145393B1 (en) * | 2020-03-31 | 2020-08-18 | 권오주 | Wireless Small Sensor Device and Attachment Method for Self-Powering System Using Square and Bending Core |
| CN113352267A (en) * | 2021-05-20 | 2021-09-07 | 温州职业技术学院 | Thermometer preassembly assembly, equipment and process |
Non-Patent Citations (1)
| Title |
|---|
| 吴爱军;乔跃忠;陈海昆;周徐达;陈华霖;陈宇;王广利;: "杆式变压器非破坏油温油位测试方法的研究", 中国电业(技术版), no. 09, 30 September 2015 (2015-09-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116337159A (en) * | 2023-05-31 | 2023-06-27 | 广东电网有限责任公司佛山供电局 | Monitoring device for transformer |
| CN116337159B (en) * | 2023-05-31 | 2023-08-04 | 广东电网有限责任公司佛山供电局 | Monitoring device for transformer |
| CN118089851A (en) * | 2024-03-12 | 2024-05-28 | 保定天威新域科技发展有限公司 | Comprehensive on-line monitoring device and protection control method for transformer |
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