Device and method for quickly wrapping shielding wire insulation
Technical Field
The invention relates to a device and a method for quickly wrapping shielding wire insulation, which are suitable for the shielding wire insulation wrapping process of a large transformer or the high-frequency insulation wrapping work of parts with different specifications in various industries and belong to the technical field of shielding wire insulation wrapping.
Background
In the Siemens manufacturing technology of large-scale power transformers, insulation wrapping operation of a shielding wire in a transformer body assembling procedure always occupies a large amount of labor and time. And with the improvement of the voltage grade of the transformer, the insulation thickness of the shielding wire is gradually increased, and repeated operation brings a large amount of work to workers.
Disclosure of Invention
The invention aims to provide a device and a method for quickly wrapping insulation of a shielded wire.
The technical scheme of the invention is as follows:
a quick insulated wrapping device for a shielded wire comprises a motor, an operating platform and a shielded wire fixing device, wherein the motor is arranged on one side of the operating platform, and the shielded wire fixing device is arranged on the operating platform; the shielding wire fixing device comprises crepe paper, a support frame, clamping rings, a pressing frame, a fixing screw and a guide frame, wherein the support frame is horizontally arranged on the operation platform, the clamping rings, the pressing frame and the guide frame are arranged on the support frame, the number of the clamping rings is multiple, the copper bar shielding wire is arranged in the clamping rings, the end of the copper bar shielding wire is fixedly connected with a motor, the copper bar shielding wire, the pressing frame and the guide frame are arranged in parallel, the guide frame is close to the edge of the operation platform, the pressing frame is arranged between the copper bar shielding wire and the guide frame, a gap is formed between the pressing frame and the support frame, the crepe paper is arranged at the edge of the operation platform, and the end part of the crepe paper is wrapped on the copper bar shielding wire through the gap penetrating between the pressing frame and; a plurality of fixing holes are uniformly formed in the pressing frame, and the pressing frame is fixed on the supporting frame through the fixing holes by a plurality of fixing screws.
The number of the clamping rings and the number of the fixing screw rods are two, the clamping rings and the fixing screw rods are symmetrically arranged at two ends of the supporting frame, the two clamping rings are arranged between the two fixing screw rods, and the crepe paper is wrapped on the copper bar shielding wire between the two clamping rings.
The crepe paper is adhered to the copper bar shielding wire through the special insulating glue.
The clamping ring comprises a circular ring and a copper plate, the circular ring is fixed on the copper plate, and one end of the copper plate is arranged in a gap between the pressing frame and the supporting frame and can also extend to a position between the guide frame and the supporting frame; the copper bar shielding wire is clamped in the circular ring, and the pressing frame is arranged between the circular ring and the guide frame; the copper plate is pressed on the support frame through the fixing screw rod.
The motor is a speed-adjustable motor, and is a common device known in the field. According to the invention, only two persons are needed to cooperate, one person controls the rotating speed of the motor to drive the copper bar shielding wire to rotate at a constant speed, and the other person conveys crepe paper on the operating table to wrap the copper bar shielding wire.
A method for quickly binding insulation of a shielded wire comprises the following steps:
the copper bar shielding wire is measured according to requirements, bending and non-bending ranges are marked, the copper bar shielding wire is clamped in a clamping ring on a support frame, the placement position of the clamping ring is adjusted according to the length of the shielding wire, the clamping ring is placed at a position H away from the end of the copper bar shielding wire, the end part of crepe paper is wrapped on the copper bar shielding wire through a gap between a pressing frame and the support frame after penetrating from a guide frame, and the copper bar shielding wire is bonded on the copper bar shielding wire by using special insulating glue; placing a motor on one side of an operation table, fixedly connecting the motor with the end of the copper bar shielding wire, starting the motor anticlockwise, and performing insulation wrapping on the copper bar shielding wire; when the motor starts, the rotating speed is slow and is not more than 60 revolutions per minute, after the crepe paper on the copper bar shielding wire is wrapped uniformly in a half-overlapping mode, the rotating speed of the motor is increased, the insulating wrapping speed is accelerated, and the non-bending position of the copper bar shielding wire is wrapped and insulated to a specified size; manufacturing the preliminarily insulated and wrapped copper bar shielding wire into a specified shape according to the shape of a structural member; the remaining insulation is then wrapped.
The invention has the beneficial effects that: the repeated labor time of insulating wrapping of the copper bar shielding wire is greatly reduced, most of manual operation is changed into machine operation, the processing time is reduced to 1/6, and the wrapping time of a single copper bar shielding wire is reduced from 12 people to 2 days to 3 people to 1 day. The invention has the advantages of low manufacturing cost, labor saving and production efficiency improvement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a shielded wire fixing device according to the present invention;
fig. 3 is a side view of the shielded wire fixing apparatus of the present invention;
FIG. 4 is a schematic view of a fixing screw according to the present invention;
FIG. 5 is a schematic view of a snap ring structure according to the present invention;
FIG. 6 is a schematic view of the direction of rotation of the motor of the present invention;
FIG. 7 is a partial schematic view of the working state of the present invention;
FIG. 8 is a schematic view of the working state of the present invention;
FIG. 9 is a schematic view of a bent structure of a copper bar shielding wire in a shape of a Chinese character 'ji';
in the figure: the device comprises a motor 1, an operation table 2, a shielding wire fixing device 3, a copper bar shielding wire 4, crepe paper 5, a support frame 6, a clamping ring 7, a circular ring 71, a copper plate 72, a pressing frame 8, a fixing screw rod 9, a guide frame 10 and a fixing hole 11.
Detailed Description
The present invention will be further described by way of examples with reference to the accompanying drawings.
A quick insulated wrapping device for a shielded wire comprises a motor 1, an operating platform 2 and a shielded wire fixing device 3, wherein the motor 1 is arranged on one side of the operating platform 2, and the shielded wire fixing device 3 is arranged on the operating platform 2; the shielding wire fixing device comprises crepe paper 5, a support frame 6, a clamping ring 7, a pressing frame 8, a fixing screw 9 and a guide frame 10, the support frame 6 is horizontally arranged on the operating platform 2, the clamping ring 7, the pressing frame 8 and the guide frame 10 are arranged on the support frame 6, the clamping rings are multiple in number, the copper bar shielding wires 4 are clamped in the clamping rings, the ends of the copper bar shielding wires 4 are fixedly connected with a motor, the copper bar shielding wires 4, the pressing frame 8 and the guide frame 10 are arranged in parallel, the guide frame 10 is close to the edge of the operating platform 2, the pressing frame 8 is arranged between the copper bar shielding wires 4 and the guide frame 10, a gap is formed between the pressing frame and the support frame, the crepe paper 5 is arranged at the edge of the operating platform, and the end part of the crepe paper 5 is wrapped on the copper bar shielding wires 4 through the gap penetrating through the pressing frame and the support; a plurality of fixing holes 11 are uniformly formed in the pressing frame 8, and the pressing frame 8 is fixed on the supporting frame 6 through the fixing holes by a plurality of fixing screws 9 respectively.
The number of the snap rings 7 and the number of the fixing screw rods 9 are two, the two snap rings are symmetrically arranged at two ends of the supporting frame, the two snap rings are arranged between the two fixing screw rods 9, and the crepe paper is wrapped on the copper bar shielding wire 4 between the two snap rings.
The crepe paper is adhered to the copper bar shielding wire through the special insulating glue.
The clamping ring 7 comprises a circular ring 71 and a copper plate 72, the circular ring is fixed on the copper plate, and one end of the copper plate is arranged in a gap between the pressing frame 8 and the supporting frame 6 and can also extend to a position between the guide frame 10 and the supporting frame; the copper bar shielding wire 4 is clamped in the circular ring, and the pressing frame 8 is arranged between the circular ring and the guide frame 10; the snap ring is placed at a distance H from the end of the copper bar shielding wire, the distance H is 100mm, the thickness L of the copper plate is 3mm, and the snap ring is tightly pressed on the support frame through a fixing screw rod.
The fixing holes are phi 18 circular holes, and the interval between every two adjacent fixing holes is 100 mm; the circular ring is a phi 8 circular ring.
A method for quickly binding insulation of a shielded wire comprises the following steps:
the copper bar shielding wire 4 is measured according to the requirements of drawings and objects, the bending and non-bending ranges are marked by a marking pen, a certain length allowance (generally 50-100 mm) is reserved for the copper bar shielding wire 4, the copper bar shielding wire 4 is clamped in a clamping ring on a support frame, the placement position of the clamping ring is adjusted according to the length of the shielding wire, the clamping ring is placed at a position 100mm away from the end of the copper bar shielding wire, the end part of crepe paper is wrapped on the copper bar shielding wire 4 through a gap penetrating between a pressing frame and the support frame from a guide frame 10, and the crepe paper is adhered to the copper bar shielding wire 4 by using special insulating glue; placing a motor at one side of an operation table, fixedly connecting the motor with the end of the copper bar shielding wire 4, starting the motor anticlockwise, and insulating and wrapping the copper bar shielding wire 4; when the motor starts, the rotating speed is slow (not more than 60 revolutions per minute), after the crepe paper on the copper bar shielding wire 4 is wrapped uniformly in a half-overlapping mode, the rotating speed of the motor is increased, the insulating wrapping speed is accelerated, and the non-bending position of the copper bar shielding wire 4 is wrapped and insulated to a specified size; manufacturing the preliminarily insulated and wrapped copper bar shielding wire 4 into a specified shape (such as a shape like a Chinese character 'ji') according to the shape of a structural part; the remaining insulation is then wrapped.
In order to ensure the insulation wrapping quality, the copper bar shielding wire 4 must be wrapped in a half-lap mode, and meanwhile, the moderate tensile strength of the crepe paper needs to be ensured in the wrapping process, so that the shielding wire fixing device 3 is used for clamping and fixing the copper bar shielding wire and controlling the conveying of the crepe paper.