KR200340285Y1 - Tool for cable jacket axis line cutting - Google Patents

Abstract

The present invention relates to a cable sheath axial continuous cutter that separates the cable sheath from the inner copper wire. By using this method, when replacing the cable in the nuclear power plant radiation area, the cable shell and inner copper wire are separated, the contaminated shell can be treated as radioactive waste and the inner copper wire can be recycled to reduce the amount of radioactive waste. The outer shell of the cable can be used for aging evaluation experiments.

In general, in order to separate the cable sheath from the copper wire, a method of cutting out the cable sheath by hand or incineration of the cable sheath by flame is used.

Incineration of the outer shell by flames has problems of inefficiency of the outer shell and air pollution, and incision of the outer shell by manual labor is inefficient due to high manpower and time.

The present invention is to insert the cable between the rotary pulley attached to the circular cutter blade of cemented carbide to rotate the pulley so that the outer sheath of the cable can be continuously cut in the axial direction. There is an advantage that can be separated at high speed.

Description

Tool for cable jacket axis line cutting}

The present invention relates to a cable sheath axial continuous cutter for separating the copper wire and the sheath of the cable by continuously cutting the sheath (jacket and insulator) of the cable along the axial direction.

Cables used for various purposes are largely divided into insulated sheaths covering copper wires and moving lines. For example, cables removed from a radiation zone of a nuclear power plant are treated as radioactive waste, and laboratories such as laboratories evaluate the life of cables. In order to do this, the copper wire is discarded and the outer shell is cut and used for the experiment.

Cables commonly used in the radiation zone of nuclear power plants assess the age of cable insulation and jackets to assess the age of the cables. To evaluate the age of cable insulation, the cable's sheath is cut and elongation is elongated. It is made of test specimens and is tested for elongation.

In this case, when the elongation of the specimen reaches 50% of the new cable specimen elongation, the insulation performance is deteriorated, and the cable is replaced.

On the other hand, in order to make the cable specimen as described above, the cable sheath must be uniformly cut in the axial direction, but when the cable sheath is cut out using a cutter by hand, the work is very difficult and takes a lot of time.

Conventionally, various techniques have been proposed to solve the problems of manual cutting as described above. For example, Korean Utility Model Publication No. 95-10021 (name: cable insulation cutter) uses a cutting knife inside the cutter to cut a cable. It is a cutter that inserts the outer sheath, cuts the outer sheath and connects the cable by hand.

And Republic of Korea Utility Model No. 98-41051 (cable sheathing tool) is a technology to protrude out the copper wire required for cable connection by cutting the cable in a circular shape, Republic of Korea Utility Model Registration No. 236,112 (name: cable semiconducting layer cutter) Is a device for cutting a semiconducting layer or sheath of a cable in a circular or axial direction, wherein a straight cut parallel to the axial direction is manually cut using a cutter attached to the cutter.

Therefore, the present invention has a purpose of providing a cable sheath axial continuous cutter that can cut the axial left and right two-way continuous cutting of the cable rather than the circular cutting method or the axial manual cutting using only the cutter blade as in the prior art.

The present invention for achieving the above object is easy to cut the cable shell and recover the copper wire, and the jacket or insulator which is the outer shell from the cable is continuously cut into two left and right sections, and the outer shell can be used as a test specimen for cable life evaluation, and the inner copper wire Is to be recycled.

1 is a plan view of the cable jacket axial continuous cutting machine according to the present invention,

2 is a cross-sectional view of FIG.

3 is a side view of FIG. 1.

Explanation of symbols on main parts of drawing

1: expect, 2: drive handle,

3: drive handle shaft, 4: circular cutter,

5: drive pulley, 6: drive shaft chain connecting gear,

7: chain, 8: driven shaft chain connecting gear,

9: wave shaft, 10: driven pulley,

11a, 11b: corresponding pulley, 12: rotary knob,

13: lead screw, 14: cable,

15: diameter adjustment portion, 16: handle knob.

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

1 to 3 are a plan view, a cross-sectional view and a side view of the cable sheath axial continuous cutter according to the present invention.

The invention devises a drive pulley (5) having a circular cutter (4) which is held on a base (1) and connected to a drive handle shaft (3) with a drive handle (2), and a driving force of the drive handle shaft (3). A driven pulley 10 having a circular cutter 4 which is transmitted to the driven shaft chain linking gear 8 via the drive shaft chain linking gear 6 and the chain 7 and is installed on the driven shaft 9; Corresponding pulleys 11a and 11b each having a circular cutter 4 correspondingly positioned on top of each of the pulley 5 and driven pulley 10, and the corresponding pulleys 11a and 11b are rotated for adjusting the cable diameter. 12) has a structure consisting of a diameter adjusting portion 15 for adjusting to the diameter of the cable 14 to be moved up and down through the lead screw 13 to cut in two equal parts.

Here, the cable 14 cut into two right and left portions is between the driving pulley 5 and the corresponding pulley 11a corresponding to the upper side, and between the driven pulley 10 and the other corresponding pulley 11b corresponding to the upper side. Passed through and cut by the circular cutters (4) made of cemented carbide material placed on the circumferential center of the pulleys to separate the cable sheath and the copper incision.

In addition, when the rotary knob 12 is rotated to correspond to the diameter of the cable 19 to be cut, the lead screw 13 of the rotary knob 12 moves to the corresponding pulley 11a. , 11b) is moved up and down relative to the fixedly positioned drive pulley 5 and driven pulley 10 to match the cable diameter.

On the other hand, the handle handle 16 which can turn this drive handle 2 is attached to the drive handle 2 provided in the drive handle shaft 3.

Next, the operation of the present invention will be described.

In the step of cutting the cable 14 and separating the inner copper wire, the diameter of the first cable 14 is measured with a vernier caliper or a micrometer for measuring the diameter of the cable, and the diameter of the cable 14 is measured using the rotary knob 12 so as to match the diameter of the cable 14. The height is adjusted by adjusting the corresponding pulleys 11a and 11b moving in accordance with the diameter of the cable 14, and the third cable 14 corresponds to the driving pulley 5, the corresponding pulley 11a, and the driven pulley 10. A force applied to the inlet of the pulley 116 is inserted, and when the handle knob 16 of the fourth driving handle shaft 3 is turned, the circular cutter 4 of cemented carbide material located in the center of the idle pulleys 5, 11a, 10, 11b is used. Acts to make an incision in the cable 14 sheath.

And it is used to recycle the inner copper wire of the cable 14 and the outer shell can be utilized as a specimen that can be tested in the laboratory by a separate portable cable specimen maker.

As described above, the present invention can obtain the following effects.

First, when this equipment is supplied to a power plant, it is convenient to separate the cable sheath from the site where the cable is removed and bring it to the laboratory, thereby reducing the inconvenience of sending all the heavy cables including copper wire to the laboratory for cable life evaluation. The cut specimen is cut to the correct size and can be used as an experimental specimen.

Second, because the cable jacket is not used to cut power, the manufacturing cost is low and the work can be easily performed in a yard without power supply.

Third, the use of this equipment has the advantage of reducing the amount of radioactive waste by separating the outer shell of the cable removed from the radiation zone of the nuclear power plant with the copper wire and recycling the copper wire and discarding only the outer shell.

Claims (2)

A drive pulley 5 having a circular cutter 4 connected to a drive handle shaft 3 having a drive handle 2 while being held on the base 1 and a driving force of the drive handle shaft 3 are driven by a drive shaft chain. A driven pulley 10 having a circular cutter 4 which is transmitted to a driven shaft chain connecting gear 8 via a coupling gear 6 and a chain 7 and is installed on the driven shaft 9, the driving pulley ( 5) and corresponding pulleys 11a and 11b each having a circular cutter 4 correspondingly positioned on top of each of the driven pulleys 10, and each of the corresponding pulleys 11a and 11b rotate the knob 12 for adjusting the cable diameter. Cable axial continuous cutting machine consisting of a diameter adjusting portion 15 for adjusting the diameter according to the diameter of the cable (14) to move up and down through the lead screw (13) to cut in two equal parts. 2. The cable sheath axial continuous according to claim 1, characterized in that a handle handle (16) capable of turning the drive handle (2) is attached to the drive handle (2) provided on the drive handle shaft (3). cutter.