CN117471393A - Mutual inductor angle difference checking device - Google Patents

Abstract

The application relates to the technical field of transformer calibration, in particular to a transformer angular difference calibration device, which comprises a calibration table, a lifting table, a first conduction joint, a second conduction joint and a thread cutting blade, wherein the lifting table is arranged above the calibration table and is controlled by a lifting driving piece; the first conduction joint and the second conduction joint are oppositely arranged, the first conduction joint is installed on the lifting platform, the second conduction joint is installed on the checking platform, and the first conduction joint and the second conduction joint are connected to the mutual inductor checking instrument through wires. In the process of angle difference verification, on one hand, the lifting table is utilized to control and control the connection or disconnection from the P1 end to the P2 end in the transformer to be tested, so that a worker can conveniently and quickly replace the transformer to be tested to perform continuous work; on the other hand, when the line is cut, the line cutting blade serves as a conductor, so that short circuit of the S1 end and the S2 end in the transformer to be tested is synchronously realized, the operation is simple and convenient, and the verification efficiency of workers can be greatly improved.

Description

Mutual inductor angle difference checking device

Technical Field

The application relates to the technical field of transformer verification, in particular to a transformer angle difference verification device.

Background

The mutual inductor is a necessary element of a high-precision instrument and a protection device in a shop system, and the error (ratio difference and angle difference) of the mutual inductor is an important index for evaluating the performance of the mutual inductor in real time, and belongs to one of check projects which the mutual inductor is required to do. Therefore, in the production process of the transformer, the angle difference of the transformer needs to be checked.

In the process of angle difference verification, a primary side wire passes through a P1 end to a P2 end in the middle of a transformer to be tested by using a transformer verification instrument, then S1 and S2 ends of a secondary side in the transformer to be tested are short-circuited, and angle difference data displayed on the transformer verification instrument are used for judging that the angle difference of the transformer to be tested is changed and meeting the requirements.

At present, enameled wires are usually adopted in the transformer, and in the verification process, workers need to strip wires at the S1 and S2 ends in the transformer to be tested and then short-circuit the wires. This mode of operation is cumbersome and its efficiency is relatively low. Thus, further improvements can be made.

Disclosure of Invention

In order to improve the verification efficiency of workman, this application provides a mutual-inductor angle difference verifying attachment.

The application provides a mutual-inductor angle difference verifying attachment adopts following technical scheme:

the angle difference checking device of the transformer comprises a checking table, a lifting table, a first conduction joint and a second conduction joint, wherein the lifting table is arranged above the checking table and is controlled by a lifting driving piece; the first conduction joint and the second conduction joint are oppositely arranged, the first conduction joint is arranged on the lifting platform, the second conduction joint is arranged on the checking platform, and the first conduction joint and the second conduction joint are connected to an output power supply in a mutual inductor checking instrument through wires; the checking bench is also provided with a cutting blade which is made of conductor material and is arranged at the right side of the second conducting connector.

Through adopting above-mentioned technical scheme, in carrying out the poor check-up in-process of angle, the workman overlaps the second that is put in the check-up bench with the mutual-inductor that awaits measuring, then pull down behind the enamelled wire of S1, S2 end in the mutual-inductor that awaits measuring to the secant blade position, the enamelled layer of wire is cut apart this moment, form the short circuit through the secant blade between two wires, under the effect of lift driving piece, the elevating platform descends, first conduction joint carries out contact with the second conduction joint, in order to realize carrying out the conduction and wear to establish at the P1 end to the P2 end of mutual-inductor that awaits measuring, the mutual-inductor check-up instrument carries out the check-up demonstration to the angle difference of mutual-inductor that awaits measuring this moment, so that the workman can judge according to the angle difference data that shows on the mutual-inductor check-up instrument, the angle difference of changing the mutual-inductor that awaits measuring meets the requirements. After the verification test is completed, the lifting platform ascends, the first conduction connector and the second conduction connector are separated and reset, and a worker takes out the transformer which is completed in the test to carry out the next round of verification test. In the process, on one hand, the lifting table is utilized to control the connection or disconnection of the P1 end to the P2 end in the transformer to be tested, so that a worker can conveniently and quickly replace the transformer to be tested to perform continuous work; on the other hand, when the line is cut, the line cutting blade serves as a conductor, so that short circuit of the S1 end and the S2 end in the transformer to be tested is synchronously realized, the operation is simple and convenient, and the verification efficiency of workers can be greatly improved.

Optionally, a tool apron is installed at the top of the checking bench, and the tool apron is arranged on the right side of the first conducting connector; the cutting line cutting device is characterized in that a cutting edge is formed in the middle of the top of the cutter holder, the cutting line blade is arranged in the cutting edge, and the cutting edge of the cutting line blade is upward.

Optionally, a first slot is formed in the top of the tool apron, and the first slot extends downwards into the bottom wall of the tool mounting edge and is used for the cutting blade to be installed in a pluggable manner, and both ends of the cutting blade are controlled to be loosened or tightened through the tightening member.

Through adopting above-mentioned technical scheme, in the in-process of installation secant blade, the workman installs the secant blade in first sword seam through the grafting mode, then presss from both sides tightly fixedly to the both ends of secant blade through the tightening member. At this time, the cutting edge of the cutting blade faces upwards, and the cutting edge surface of the cutting blade sinks into the cutting edge, so that the cutting blade is installed in a countersunk manner, and workers can be protected from being cut easily. The bottom joint of secant blade is fixed in the diapire of dress edge of a knife, and the both ends of secant blade are fixed by the both ends centre gripping of blade holder respectively, therefore, the bottom of secant blade, both ends are all fixed by the centre gripping, and the form after its installation is more stable, is difficult for taking place to warp in the in-process of using, can ensure the stability of work.

Optionally, both sides of the knife assembly edge are inclined outwards.

By adopting the technical scheme, in the actual working process, as the two sides of the assembly knife edge are inclined outwards, a worker pulls the enamelled wires at the S1 and S2 ends in the transformer to be tested to the position of the cutting line blade and then pulls the enamelled wires downwards so as to cut off the enamelled layer and conduct the enamelled wires. On one hand, the thickness degree of the bottom of the tool apron can be ensured, and the whole structure is not easy to deform; on the other hand, in the process of pulling down and cutting open the enamelled wires at the S1 and S2 ends in the transformer to be tested, the slope at the outward side of the installation edge can be used for pulling down the enamelled wires in a homeopathic manner, so that the cutting line blade can better cut open the enamelled layers.

Optionally, the cutter holder is formed with a separation seat in the cutter mounting edge, the separation seat is arranged in the middle of the cutter mounting edge, and the separation seat extends upwards.

Through adopting above-mentioned technical scheme, on the one hand, in the verification test process, if directly carry out direct traction to the enameled wire of S1, S2 end in the mutual-inductor that awaits measuring, two wires appear intertwining easily. When the wire is pulled to the position of the wire cutting blade, the winding point of the wire is likely to appear at the position of the wire cutting blade, at this time, the wire below the wire can be normally cut, and the wire above the wire is not cut due to the fact that the wire is not directly contacted with the wire cutting blade, namely, the enamelled wires at the S1 and S2 ends in the transformer to be tested cannot form short circuit through the wire cutting blade, and misjudgment of a worker on a verification result is easy to be led out. Therefore, in the application, by utilizing the separation seat, a worker can separate the two enameled wires at the S1 and S2 ends in the transformer to be tested in the traction process, so that the enameled wires are distributed on two sides of the separation seat, at the moment, the two wires are in a separated state at the position of the cutting line blade, and the two wires can be ensured to be conducted after being cut by being in direct contact with the cutting line blade. On the other hand, the cutting edge is further divided into smaller openings by the separating seat, so that hands are not easy to cut due to careless falling into the cutting edge directly in the normal operation process of workers, and the protective effect can be achieved.

Optionally, an inner mounting cavity is formed in the tool apron, a fixed supporting plate is mounted in the inner mounting cavity, the thread cutting blade is vertically and slidably mounted on the fixed supporting plate, the cutting edge of the thread cutting blade is upward, and a damping piece is mounted between the thread cutting blade and the fixed supporting plate; the top of the cutter holder is provided with a second cutter slot, the second cutter slot extends downwards to penetrate into the inner mounting cavity, the top of the cutting line blade is slidably inserted and mounted in the second cutter slot, and two ends of the cutting line blade extend into the inner wall of the cutter mounting edge respectively.

By adopting the technical scheme, in the verification process, workers need to pull down the enamelled wires at the S1 and S2 ends in the transformer to be tested and then cut by the thread cutting blade so as to form a short circuit. In this process, the workman needs to be controlling the pull-down dynamics, and pull-down degree is too big, and whole enameled wire is directly cut off directly, and pull-down degree is too little, and can not reach the effect of cutting off, can not form the short circuit. Therefore, too large or too small a pull-down force may affect the test results of the worker. However, it is not easy to control the pull-down force thereof during the actual operation, especially for new workers. In this application, carry out self-adaptation control through the damping piece, the workman only need carry out the drop-down with effort, until the secant blade is passive to be retracted, the dynamics that the secant blade was bounced up through the damping piece just corresponds to the dynamics of cutting open this moment, namely, the workman no longer need all to master the drop-down dynamics at every turn, for having the workman, especially for the new people who does not experience or the workman who works for a long time, its effect is bigger, also more convenient.

Optionally, the thread cutting blade is slidably mounted on the fixed support plate along the vertical direction through a first horizontal support plate, a second horizontal support plate is mounted on the fixed support plate, the second horizontal support plate can be slidably arranged along the vertical direction, and the second horizontal support plate is arranged below the first horizontal support plate; and the inner mounting cavity is internally provided with a lifting adjusting unit which is used for controlling the second horizontal supporting plate to lift and adjust.

By adopting the technical scheme, in the actual use process, the types of the enamelled wires adopted by the different transformers are different, so that the quality and the thickness of the enamelled layers are different, and the required cutting force is also different. Therefore, in this application technical scheme, the workman can be according to the required dynamics of cutting out of different grade type mutual-inductors, through the lift adjustment unit, carry out lift adjustment to the horizontal layer board of second to the control secant blade exposes out the height of dress edge under natural state, and its naked altitude is bigger, then the degree of depth that need retract at the secant in-process is bigger, namely, after the complete back that contracts, the elasticity of damping piece is bigger, and the cutting case that brings is also bigger, just can carry out adaptability adjustment according to the required dynamics of cutting out of different mutual-inductors, in order to improve the adaptability of this device.

Optionally, the lifting adjusting unit comprises two groups of ball screw pairs, and the two groups of ball screw pairs are respectively arranged on the left side and the right side of the top of the fixed supporting plate and are vertically arranged; the bottom of the screw rod in the ball screw pair is rotatably inserted and mounted on the fixed supporting plate, and the top of the screw rod in the ball screw pair is rotatably inserted and mounted on the top wall of the inner mounting cavity; the second horizontal supporting plate is arranged between the two groups of ball screws, and two ends of the second horizontal supporting plate are respectively and fixedly connected with nuts in the two groups of ball screw pairs; the screws in the two groups of ball screw pairs are synchronously driven by a linkage mechanism; the top of blade holder all sets up the regulation mouth in the position department corresponding with ball screw pair, installs the adjustment head in the regulation mouth, and the adjustment head is connected in ball screw pair's lead screw top, and is used for supplying the workman to rotate with the help of the instrument and adjust.

Through adopting above-mentioned technical scheme, in the in-service use, the workman rotates with the help of the instrument to adjust the head to the ball is vice to place one side, and this ball is vice to drive the ball of opposite side through the link gear is vice to carry out the synchronization action, in order to control the second level layer board and carry out lifting adjustment.

Optionally, the bottom of the tool apron is detachably connected with the checking table; the fixed supporting plate is detachably connected and fixed with the side wall of the inner mounting cavity; and the adjusting head is detachably connected with a screw rod in the ball screw pair.

Through adopting above-mentioned technical scheme, in the use, the workman can take off the blade holder from the check table, then take out the reinforcement layer board from the bottom of interior installation cavity in the blade holder, make the secant blade can be taken out jointly to dismantle change, repair processing etc. to the secant blade.

Optionally, the top of the fixed supporting plate is vertically and fixedly provided with guide sliding bars, and the number of the guide sliding bars is two groups and the guide sliding bars are respectively arranged at the left side and the right side of the fixed supporting plate; the first horizontal supporting plate and the second horizontal supporting plate are both penetrated by the guide sliding rod in a sliding way so as to be installed on the fixed supporting plate in a vertical sliding way.

Through adopting above-mentioned technical scheme, utilize the direction slide bar to install first horizontal layer board and second horizontal layer board, make first horizontal layer board, second horizontal layer board can be with range upon range of mode slidable mounting on fixed layer board, it is more stable in the adjustment process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the process of angle difference verification, on one hand, the lifting table is utilized to control and control the connection or disconnection of the P1 end to the P2 end in the transformer to be tested, so that a worker can conveniently and quickly replace the transformer to be tested to perform continuous work; on the other hand, when the wire is cut, the wire cutting blade serves as a conductor, so that short circuit of the S1 end and the S2 end in the transformer to be tested is synchronously realized, the operation is simple and convenient, and the verification efficiency of workers can be greatly improved;

2. in the verification process, workers need to pull down the enamelled wires at the S1 and S2 ends in the transformer to be tested and then cut the enamelled wires by the cutting line blade to form a short circuit. In this process, the workman needs to be controlling the pull-down dynamics, and pull-down degree is too big, and whole enameled wire is directly cut off directly, and pull-down degree is too little, and can not reach the effect of cutting off, can not form the short circuit. Therefore, too large or too small a pull-down force may affect the test results of the worker. However, it is not easy to control the pull-down force thereof during the actual operation, especially for new workers. In the application, the self-adaptive control is performed through the damping piece, a worker only needs to pull down forcefully until the thread cutting blade is retracted passively, and the upward bouncing force of the thread cutting blade through the damping piece just corresponds to the cutting force at the moment, namely, the worker does not need to master the pulling-down force every time, and the action of the self-adaptive control is relatively large and relatively convenient for workers, especially for inexperienced new people or workers working for a long time;

3. in the actual use process, the types of the enamelled wires adopted by the different transformers are different, so that the quality and the thickness of the enamelled layers are different, and the required cutting strength is also different. Therefore, in this application technical scheme, the workman can be according to the required dynamics of cutting out of different grade type mutual-inductors, through the lift adjustment unit, carry out lift adjustment to the horizontal layer board of second to the control secant blade exposes out the height of dress edge under natural state, and its naked altitude is bigger, then the degree of depth that need retract at the secant in-process is bigger, namely, after the complete back that contracts, the elasticity of damping piece is bigger, and the cutting case that brings is also bigger, just can carry out adaptability adjustment according to the required dynamics of cutting out of different mutual-inductors, in order to improve the adaptability of this device.

Drawings

Fig. 1 is a schematic diagram for the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a holder portion in embodiment 1 of the present application.

Fig. 3 is a schematic view showing the overall structure of embodiment 2 of the present application.

Fig. 4 is a schematic structural view of a holder portion in embodiment 2 of the present application.

Fig. 5 is a cross-sectional view of a holder portion in embodiment 2 of the present application.

Fig. 6 is a schematic view showing the mounting and assembling structure between the cutting blade and the fixed blade in embodiment 2 of the present application.

Reference numerals illustrate:

1. a checking table; 11. powering up the base frame; 2. a lifting table; 3. a first conductive contact; 4. a second conductive contact; 5. a lifting driving member; 6. a thread cutting blade; 7. a tool apron; 71. installing a knife edge; 72. a first knife slot; 73. a tightening member; 74. a partition seat; 75. a second knife slot; 76. an adjustment port; 77. adjusting the head; 8. an inner mounting cavity; 81. fixing the supporting plate; 82. a damping member; 83. a guide slide bar; 84. a first horizontal pallet; 85. a second horizontal pallet; 86. a lifting adjusting unit; 87. a ball screw pair; 88. a linkage mechanism; 89. an inner flange; 100. a transformer checking instrument; 200. a mutual inductor.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a mutual inductor angle difference verification device.

Example 1:

referring to fig. 1, a transformer angular difference checking device comprises a checking table 1, a lifting table 2, a first conducting connector 3 and a second conducting connector 4; wherein, the top fixed mounting of check table 1 has a power on bed frame 11, and elevating platform 2 installs in check table 1 top and installs on power on bed frame 11, and elevating platform 2 is controlled through lift driving piece 5. The first conducting connector 3 and the second conducting connector 4 are oppositely arranged, the first conducting connector 3 is arranged on the lifting table 2, the second conducting connector 4 is arranged on the checking table 1, and the first conducting connector 3 and the second conducting connector 4 are connected to an output power supply in the mutual inductor checking instrument 100 through wires. The top of the checking platform 1 is fixedly provided with a cutter holder 7, the cutter holder 7 is arranged at the right side of the second conducting connector 4, the cutter holder 7 is provided with a cutting line blade 6, the cutting line blade 6 is made of a conductor material, and the cutting edge of the cutting line blade 6 is upwards arranged.

In the process of angle difference verification, a worker sleeves the to-be-tested transformer 200 on the second conduction connector 4 on the verification table 1, then pulls the enamelled wires at the S1 and S2 ends in the to-be-tested transformer 200 to the position of the secant blade 6 and then pulls the enamelled wires downwards, at this time, the enamelled layers of the wires are cut, the two wires form short circuit through the secant blade 6, the lifting table 2 descends under the action of the lifting driving piece 5, and the first conduction connector 3 is in contact conduction with the second conduction connector 4 so as to realize conduction and penetration from the P1 end to the P2 end of the to-be-tested transformer 200, and the transformer verification instrument 100 performs verification display on the angle difference of the to-be-tested transformer 200, so that the worker can judge that the angle difference of the to-be-tested transformer 200 meets the requirement according to the angle difference data displayed on the transformer verification instrument 100. After the verification test is completed, the lifting platform 2 ascends, the first conducting connector 3 and the second conducting connector 4 are separated and reset, and a worker takes out the transformer 200 which is completed in the test to carry out the next round of verification test. In the process, on one hand, the lifting platform 2 is utilized to control and control the connection or disconnection from the P1 end to the P2 end in the transformer 200 to be tested, so that a worker can conveniently and quickly replace the transformer 200 to be tested to perform continuous work; on the other hand, when the wire is cut, the wire cutting blade 6 serves as a conductor, so that the short circuit of the S1 end and the S2 end in the transformer 200 to be tested is synchronously realized, the operation is simple and convenient, and the checking efficiency of workers can be greatly improved.

In this embodiment, the lifting driving member 5 is an air cylinder, and the lifting driving member 5 is fixedly mounted on the power-on base frame 11 and is vertically oriented. Correspondingly, the lifting table 2 is fixedly arranged on the piston rod end of the lifting driving piece 5, so that the lifting driving piece 5 can control the lifting table 2 to perform lifting control.

Referring to fig. 2, specifically, in this embodiment, a cutting edge 71 is formed at a middle position of a top of the cutter holder 7, a first slot 72 is formed at the top of the cutter holder 7, the first slot 72 extends downward into a bottom wall of the cutting edge 71, and two ends of the first slot 72 respectively penetrate through left and right sides of the top of the cutter holder 7 for pluggable installation of the cutting blade 6. The tightening members 73 are installed at the left and right ends of the top of the tool apron 7, in this embodiment, the tightening members 73 are screws, and the tightening members 73 are installed at the positions of the first slits 72 on the top of the tool apron 7 in a threaded manner and are used for controlling the loosening or tightening of the first slits 72.

In the process of installing the cutting blade 6, a worker installs the cutting blade 6 in the first slit 72 in an inserting manner, and then clamps and fixes both ends of the cutting blade 6 by the tightening member 73. At this time, the cutting edge of the cutting blade 6 is directed upward, and the cutting edge surface of the cutting blade 6 is sunk into the mounting edge 71 to mount the cutting blade 6 in a countersunk manner, so that it is possible to protect a worker from being easily cut. The bottom joint of secant blade 6 is fixed in the diapire of dress edge 71, and the both ends of secant blade 6 are fixed by the both ends centre gripping of blade holder 7 respectively, therefore, the bottom of secant blade 6, both ends are all fixed by the centre gripping, and the form after its installation is comparatively stable, is difficult for taking place to warp in the in-process of using, can ensure the stability of work.

In the present embodiment, a partition seat 74 is formed on the top of the tool holder 7, the partition seat 74 is disposed in the middle of the tool setting edge 71, and the partition seat 74 extends upward to be flush with the top of the tool holder 7 to divide the tool setting edge 71 into two.

On the one hand, in the verification test process, if the enamelled wires at the S1 and S2 ends in the transformer 200 to be tested are directly pulled, the two wires are easy to be intertwined. When the wire is pulled to the position of the wire cutting blade 6, the winding point of the wire may appear at the position of the wire cutting blade 6, at this time, the wire below can be normally cut, and the wire above is not cut because of not being in direct contact with the wire cutting blade 6, that is, the enamelled wires at the S1 and S2 ends in the transformer 200 to be tested cannot form a short circuit through the wire cutting blade 6, so that misjudgment of a worker on a verification result is easily led out. Therefore, in the present application, by using the separating seat 74, a worker can separate the two enameled wires at the S1 and S2 ends of the transformer 200 to be tested in the traction process, so that the two enameled wires are distributed on two sides of the separating seat 74, and at this time, the two wires are separated at the position of the cutting line blade 6, so that the two wires can be ensured to be conducted after being cut by directly contacting with the cutting line blade 6. On the other hand, the partition seat 74 is used for dividing the knife assembly edge 71, and the knife assembly edge 71 is further divided into smaller openings, so that hands are not easy to be cut due to careless falling into the knife assembly edge 71 directly in the normal operation process of workers, and the knife assembly edge 71 can play a role in protection.

In this embodiment, both sides of the loading edge 71 are inclined in an outwardly inclined slope shape. In the actual working process, both sides of the assembly knife edge 71 are inclined outwards, so that a worker pulls the enamelled wires at the S1 and S2 ends in the transformer 200 to be tested to the position of the cutting line blade 6 and then pulls the enamelled wires downwards to cut off the enamelled layers and conduct the enamelled wires. On one hand, the thickness degree of the bottom of the tool apron 7 can be ensured, and the whole structure is not easy to deform; on the other hand, in the process of pulling down and cutting open the enamelled wires at the S1 and S2 ends in the transformer 200 to be tested, the slope of the outward side of the loading edge 71 can be used for pulling down the enamelled wires in a homeopathic manner, so that the cutting blade 6 can better cut open the enamelled layers.

Example 2:

referring to fig. 3, this embodiment is different from embodiment 1 in the manner of mounting the cutting blade 6.

Referring to fig. 4 and 5, specifically, in this embodiment, an inner mounting cavity 8 is integrally formed in the tool holder 7, a fixing support plate 81 is mounted in the inner mounting cavity 8, the cutting blade 6 is vertically slidably mounted on the fixing support plate 81, the cutting edge of the cutting blade 6 is upward, and a damping member 82 is mounted between the cutting blade 6 and the fixing support plate 81, so that the cutting blade 6 can be adjusted in an up-and-down fluctuation manner relative to the fixing support plate 81. Correspondingly, a second cutter gap 75 is formed at the top of the cutter seat 7, the second cutter gap 75 extends downwards to penetrate into the inner mounting cavity 8, and two ends of the second cutter gap 75 extend downwards along the inner wall of the mounting edge 71 respectively and do not penetrate through the cutter seat 7. The top of the thread cutting blade 6 is slidably inserted and installed in the second slot 75, and two ends of the thread cutting blade 6 extend into the inner wall of the installation edge 71 respectively, so that the thread cutting blade 6 is telescopically installed in the second slot 75.

In the present embodiment, the damping members 82 are springs, the number of the damping members 82 is plural, and the damping members 82 are arranged at intervals along the length direction of the cutting blade 6

In the verification process, workers need to pull down the enamelled wires at the ends S1 and S2 in the transformer 200 to be tested and then cut the enamelled wires by the cutting line blade 6 to form a short circuit. In this process, the workman needs to be controlling the pull-down dynamics, and pull-down degree is too big, and whole enameled wire is directly cut off directly, and pull-down degree is too little, and can not reach the effect of cutting off, can not form the short circuit. Therefore, too large or too small a pull-down force may affect the test results of the worker. However, it is not easy to control the pull-down force thereof during the actual operation, especially for new workers. In this application, the self-adaptive control is performed through the damping member 82, so that the worker only needs to pull down forcefully until the thread cutting blade 6 is retracted passively, and the upward bouncing force of the thread cutting blade 6 through the damping member 82 just corresponds to the cutting force, that is, the worker does not need to control the pull-down force every time, and for the worker, especially for inexperienced new people or workers working for a long time, the action is relatively large and relatively convenient.

Specifically, in the present embodiment, the top of the fixed supporting plate 81 is vertically and fixedly provided with the guide sliding bars 83, and the number of the guide sliding bars 83 is two, and is respectively disposed on the left and right sides of the fixed supporting plate 81. The number of the guide sliding bars 83 in each group is two, and the guide sliding bars are respectively arranged at the left side and the right side of the fixed supporting plate 81. Correspondingly, the first horizontal supporting plate 84 is fixedly arranged at the bottom of the thread cutting blade 6, and the first horizontal supporting plate 84 is penetrated by the guide sliding rod 83 in a sliding way, so that the thread cutting blade 6 can be vertically and slidably arranged on the fixed supporting plate 81.

In this embodiment, a second horizontal pallet 85 is mounted on top of the fixed pallet 81, the second horizontal pallet 85 is slidably penetrated by the guide slide bar 83, and the second horizontal pallet is disposed under the first pallet. Correspondingly, the damping member 82 is mounted between the first and second support plates, and the bottom support of the damping member 82 is connected to the top of the second horizontal support plate 85, and the top support of the damping member 82 is connected to the bottom of the first horizontal support plate 84. The inner mounting cavity 8 is also internally provided with a lifting adjusting unit 86, and the lifting adjusting unit 86 is arranged on the fixed supporting plate 81 and used for controlling the second horizontal supporting plate 85 to lift and adjust.

In the actual use process, the types of the enamelled wires adopted by the different transformers 200 are different, so that the quality and thickness of the enamelled layers are different, and the required cutting strength is also different. Therefore, in the technical scheme of the application, the worker can lift and adjust the second horizontal supporting plate 85 through the lifting and adjusting unit 86 according to the cutting forces required by different types of transformers 200, so as to control the height of the exposed cutting edge 71 of the cutting line blade 6 in a natural state, and the greater the exposed height is, the greater the depth required to retract in the cutting line process is, that is, the greater the elasticity of the damping piece 82 is after the complete retraction, the greater the cutting example brought is, and the adaptability adjustment can be performed according to the cutting forces required by different transformers 200 so as to improve the adaptability of the device.

Referring to fig. 5 and 6, specifically, in the present embodiment, the lifting adjusting unit 86 includes two sets of ball screw pairs 87, the two sets of ball screw pairs 87 are respectively mounted on the left and right sides of the top of the fixed supporting plate 81, the ball screw pairs 87 are vertically arranged, the bottom of the screw in the ball screw pair 87 is rotatably inserted and mounted on the fixed supporting plate 81, and the top of the screw in the ball screw pair 87 is rotatably inserted and mounted on the top wall of the inner mounting cavity 8. The second horizontal supporting plate 85 is installed between the two groups of ball screws, and two ends of the second horizontal supporting plate 85 are respectively and fixedly connected with nuts in the two groups of ball screw pairs 87.

The screws in the two groups of ball screw pairs 87 are synchronously driven by a linkage mechanism 88. The top of blade holder 7 has all seted up regulation mouth 76 in the department corresponding with ball screw pair 87, installs in the regulation mouth 76 and adjusts head 77, adjusts head 77 and connects in the screw top of ball screw pair 87, and with the coaxial setting of the screw of ball screw pair 87 for supply the workman to rotate with the help of the instrument and adjust.

In this embodiment, the linkage mechanism 88 is a sprocket-chain mechanism, in which the bottom of the screw in the ball screw pair 87 penetrates to a position below the fixed supporting plate 81, two sets of sprockets are respectively mounted at the bottoms of the screws in the two sets of ball screw pairs 87, and the two sets of sprockets are linked by a chain.

In the actual use process, a worker rotates and adjusts the adjusting head 77 by means of a tool to adjust the ball screw pair 87 on one side where the adjusting head is located, and the ball screw pair 87 synchronously drives the ball screw pair 87 on the other side to synchronously act through the linkage mechanism 88 to control the second horizontal supporting plate 85 to lift and adjust.

Referring to fig. 4 and 5, specifically, in this embodiment, the bottom of the tool holder 7 and the calibration stand 1 are fixed by a screw to form a detachable connection.

The middle top wall of the inner mounting cavity 8 is provided with guide rod sockets which are arranged in one-to-one correspondence with the guide slide bars 83 and are used for the one-to-one correspondence grafting of the guide slide bars 83 so as to form pluggable mounting.

An inner flange 89 is arranged on the side wall of the inner mounting cavity 8, and the top of the fixing support plate 81 is supported on the inner flange 89 and then is fixedly connected through screws so as to form detachable connection.

The top of the adjustment head 77 is provided with an internal hexagonal opening for a worker to rotate and adjust by means of a hexagonal screwdriver. In other embodiments, it may be in the form of an internal octagon mouth or the like. The adjusting head 77 is fixedly connected with the top of the screw rod through a screw, and the screw is countersunk and arranged in the inner hexagonal opening, so that the adjusting head 77 is detachably connected with the screw rod in the ball screw pair 87.

In the use process, a worker can take the tool apron 7 off the checking table 1, and then take out the reinforcing supporting plate from the bottom of the inner mounting cavity 8 in the tool apron 7, so that the thread cutting blade 6 can be taken out in a connected manner, and the thread cutting blade 6 can be detached, replaced, trimmed and the like.

The implementation principle is as follows:

in the process of angle difference verification, a worker sleeves the to-be-tested transformer 200 on the second conduction connector 4 on the verification table 1, then pulls the enamelled wires at the S1 and S2 ends in the to-be-tested transformer 200 to the position of the secant blade 6 and then pulls the enamelled wires downwards, at this time, the enamelled layers of the wires are cut, the two wires form short circuit through the secant blade 6, the lifting table 2 descends under the action of the lifting driving piece 5, and the first conduction connector 3 is in contact conduction with the second conduction connector 4 so as to realize conduction and penetration from the P1 end to the P2 end of the to-be-tested transformer 200, and the transformer verification instrument 100 performs verification display on the angle difference of the to-be-tested transformer 200, so that the worker can judge that the angle difference of the to-be-tested transformer 200 meets the requirement according to the angle difference data displayed on the transformer verification instrument 100. After the verification test is completed, the lifting platform 2 ascends, the first conducting connector 3 and the second conducting connector 4 are separated and reset, and a worker takes out the transformer 200 which is completed in the test to carry out the next round of verification test.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a mutual-inductor angle difference verifying attachment which characterized in that: the automatic checking device comprises a checking table (1), a lifting table (2), a first conduction joint (3) and a second conduction joint (4), wherein the lifting table (2) is arranged above the checking table (1) and is controlled by a lifting driving piece (5); the first conduction joint (3) and the second conduction joint (4) are oppositely arranged, the first conduction joint (3) is arranged on the lifting table (2), the second conduction joint (4) is arranged on the checking table (1), and the first conduction joint (3) and the second conduction joint (4) are connected to an output power supply in the transformer checking instrument (100) through wires; the checking table (1) is further provided with a cutting blade (6), the cutting blade (6) is made of conductor material, and the cutting blade (6) is arranged at the right side of the second conducting connector (4).

2. The transformer angular difference checking device according to claim 1, wherein: a tool apron (7) is arranged at the top of the checking table (1), and the tool apron (7) is arranged on the right side of the first conducting connector (3); the cutting line cutting device is characterized in that a cutting edge (71) is formed in the middle of the top of the cutter holder (7), the cutting line blade (6) is arranged in the cutting edge (71), and the cutting edge of the cutting line blade (6) is arranged upwards.

3. The transformer angular difference checking device according to claim 2, wherein: the top of the tool apron (7) is also provided with a first cutter gap (72), the first cutter gap (72) extends downwards into the bottom wall of the cutting edge (71) and is used for the pluggable installation of the thread cutting blade (6), and the two ends of the thread cutting blade (6) are controlled to be loosened or tightened through the tightening piece (73).

4. A transformer angular difference checking apparatus according to claim 3, wherein: both sides of the knife assembly edge (71) are inclined outwards.

5. A transformer angular difference checking apparatus according to claim 3, wherein: the cutter seat (7) is formed with a separation seat (74) in the cutter mounting edge (71), the separation seat (74) is arranged in the middle of the cutter mounting edge (71), and the separation seat (74) extends upwards.

6. The transformer angular difference checking device according to claim 2, wherein: an inner mounting cavity (8) is formed in the tool apron (7), a fixed supporting plate (81) is mounted in the inner mounting cavity (8), the thread cutting blade (6) is vertically and slidably mounted on the fixed supporting plate (81), the cutting edge of the thread cutting blade (6) is upwards arranged, and a damping piece (82) is mounted between the thread cutting blade (6) and the fixed supporting plate (81); the top of the tool apron (7) is provided with a second tool seam (75), the second tool seam (75) extends downwards to penetrate into the inner mounting cavity (8), the top of the cutting blade (6) is slidably inserted and mounted in the second tool seam (75), and two ends of the cutting blade (6) extend into the inner wall of the cutting edge (71) respectively.

7. The transformer angular difference checking device according to claim 6, wherein: the cutting blade (6) is vertically and slidably arranged on the fixed supporting plate (81) through a first horizontal supporting plate (84), a second horizontal supporting plate (85) is arranged on the fixed supporting plate (81), the second horizontal supporting plate (85) can be vertically and slidably arranged, and the second horizontal supporting plate (85) is arranged below the first horizontal supporting plate (84); and a lifting adjusting unit (86) is further arranged in the inner mounting cavity (8) and used for controlling the second horizontal supporting plate (85) to lift and adjust.

8. The transformer angular difference checking device according to claim 7, wherein: the lifting adjusting unit (86) comprises two groups of ball screw pairs (87), and the two groups of ball screw pairs (87) are respectively arranged on the left side and the right side of the top of the fixed supporting plate (81) and are vertically arranged; the bottom of the screw in the ball screw pair (87) is rotatably inserted and mounted on the fixed supporting plate (81), and the top of the screw in the ball screw pair (87) is rotatably inserted and mounted on the top wall of the inner mounting cavity (8); the second horizontal supporting plate (85) is arranged between the two groups of ball screws, and two ends of the second horizontal supporting plate (85) are respectively and fixedly connected with nuts in the two groups of ball screw pairs (87); the screws in the two groups of ball screw pairs (87) are synchronously driven by a linkage mechanism (88); the top of blade holder (7) has all seted up regulation mouth (76) in the department corresponding with ball screw pair (87), installs in regulation mouth (76) and adjusts head (77), adjusts head (77) and connects in the screw top of ball screw pair (87), and is used for supplying the workman to rotate with the help of the instrument and adjust.

9. The transformer angular difference checking device according to claim 8, wherein: the bottom of the tool apron (7) is detachably connected with the checking table (1); the fixed supporting plate (81) is detachably connected and fixed with the side wall of the inner installation cavity (8); the adjusting head (77) is detachably connected with a screw in the ball screw pair (87).

10. The transformer angular difference checking device according to claim 7, wherein: the top of the fixed supporting plate (81) is vertically and fixedly provided with guide sliding rods (83), and the number of the guide sliding rods (83) is two groups and is respectively arranged at the left side and the right side of the fixed supporting plate (81); the first horizontal supporting plate (84) and the second horizontal supporting plate (85) are respectively penetrated by the guide sliding rod (83) in a sliding way so as to be arranged on the fixed supporting plate (81) in a vertical sliding way.