Wire conductor repair device and repair method

Abstract

The present invention discloses a wire conductor repair device and a repair method, belonging to the field of cable repair technology, including a mold sleeve and a repair mold. The repair mold is arranged on the inner side of the mold sleeve, and the mold sleeve includes an upper mold sleeve and a lower mold sleeve. A limiting rod is arranged in the middle of the upper mold sleeve, and fixing rods are arranged on both sides of the lower mold sleeve. The upper mold sleeve and the lower mold sleeve are connected by a slot; the repair mold is composed of two identical half molds, and the half molds are respectively provided with depressions and protrusions at the fitting surface, and the half molds are fixed by the depressions and protrusions; a limiting flange is formed on one side of the hollow cylinder of the mold sleeve, and the limiting flange can limit the position of the repair mold in the mold sleeve, and the middle part of the repair mold can repair the cable. Through the present invention, the repair device provides precise guidance and fixation for cable repair, and can braid the welded wire core into a circle. The repair mold is fixed in the mold sleeve, and the structure is stable, which avoids errors caused by offset or inaccuracy in manual repair.

Description

Technical Field

[0001] The invention relates to a wire conductor repairing device and a repairing method, belonging to the field of cable repairing. Background Art

[0002] In the production of power cables, it is inevitable that the conductor single wire will break, especially when producing round compact conductors for medium and high voltage cables. The broken conductor does not meet the standards of cable products. The breakage of the single wire conductor will reduce the overall effective cross-sectional area of ​​the conductor, resulting in a decrease in the current carrying capacity; increase the DC resistance of the conductor, which in turn causes the conductor to heat up more during operation; increase energy loss and reduce power transmission efficiency; especially for compact conductors, the repair process after the single wire is broken is complicated, which may cause production delays. Therefore, it is necessary to repair the broken conductor.

[0003] In the current mainstream repair devices and methods, a single wire thinner than the original conductor is welded to the original single wire, and then striped along the twisting direction of the conductor, and welded at the other broken end. The conductor repaired by this method has a larger outer diameter than the original conductor, and a smaller effective cross-section than the original conductor, resulting in a decrease in the effective cross-section of the conductor, an increase in DC resistance, and the formation of local heating points, which affects the long-term operation of the conductor. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a wire conductor repair device and a repair method, which solves the problem that the quality of the repaired cable product does not meet the production requirements after the cable is repaired.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: a wire conductor repair device, comprising

[0006] A mold sleeve and a repair mold, wherein the repair mold is arranged inside the mold sleeve,

[0007] The die sleeve comprises an upper die sleeve and a lower die sleeve, a limiting rod is arranged in the middle of the upper die sleeve, and fixing rods are arranged on both sides of the lower die sleeve. The upper die sleeve and the lower die sleeve are connected by a slot, and the overall shape after connection is a hollow cylinder;

[0008] The repair mold is fixed in the hollow cylinder of the mold sleeve. The repair mold is composed of two identical half molds. The half molds are respectively provided with depressions and protrusions at the fitting surfaces. The half molds are fixed by the depressions and protrusions. The half molds are combined to form a hollow cylinder.

[0009] A limiting flange is formed on one side of the hollow cylinder of the mold sleeve, and when the repair mold is fixed in the mold sleeve, the limiting flange can limit the position of the repair mold in the mold sleeve.

[0010] The middle part of the repairing mold can repair the cable.

[0011] Preferably, a boss is provided at the connection between the repair mold and the limiting flange, and the boss can cooperate with the limiting flange.

[0012] Preferably, a circular arc asymptote is provided on the inner side of the hollow cylinder of the repairing mold away from the boss.

[0013] Preferably, the limiting rod is connected to the mold sleeve by means of bolts, and the limiting rod can contact the repair mold to provide a certain pressure.

[0014] Preferably, the fixing rod can fix the mold sleeve to prevent the mold sleeve from shifting during the process of repairing the cable.

[0015] A repair method for a wire conductor repair device,

[0016] Preferably, it includes:

[0017] Step 1: Assemble the two half molds to form the repair mold, combine the upper mold sleeve and the lower mold sleeve to form the mold sleeve, fix the mold sleeve by the fixing rod, and fix the repair mold into the mold sleeve;

[0018] Step 2: Adjust the limiting rod to fix the position of the repair mold in the mold sleeve;

[0019] Step 3: Pull out the broken core inside the broken cable core, fix the complete core on the original core by welding, and pass the welded core through the repair mold.

[0020] Preferably, the wire core after welding enters the repair mold from the side of the arc asymptote and leaves the repair mold from the side of the boss.

[0021] The beneficial effects of the present invention are:

[0022] (1) Through the present invention, the repair mold is composed of two half molds, which can provide precise guidance and fixation for cable repair. The welded wire core can be braided into a circle. The repair mold is fixed in the mold sleeve, and the structure is stable, avoiding errors caused by offset or inaccuracy in manual repair.

[0023] (2) Through the present invention, a limiting flange is formed in the mold sleeve, and a boss that cooperates with the flange is provided in the repair mold. The limiting flange and the boss cooperate to avoid the displacement of the mold sleeve during the repair process, and the boss can further enhance the fixing effect of the repair mold.

[0024] (3) Through the present invention, fixing rods are provided on both sides of the mold sleeve. During the process of repairing the cable, the fixing rods can stabilize the mold sleeve to prevent the mold sleeve from being offset during the repair process, thereby improving the overall working stability of the repair device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the mold sleeve structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the mold sleeve explosion structure of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the half mold 1 of the present invention.

[0029] In the figure: 1-mold sleeve, 11-upper mold sleeve, 111-limiting rod, 12-lower mold sleeve, 121-fixing rod, 13-limiting flange, 14-slot, 2-repairing mold, 21-depression, 22-protrusion, 23-boss, 24-arc asymptote. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0031] Example 1

[0032] like Figure 1-Figure 4 shown.

[0033] A cable conductor repair device comprises a mold sleeve 1 and a repair mold 2, wherein the repair mold 2 can be fixed inside the mold sleeve 1. A broken cable core can be repaired by the repair mold 2.

[0034] The die sleeve 1 is composed of an upper die sleeve 11 and a lower die sleeve 12, which can be connected to form a hollow cylinder. In this embodiment, the upper die sleeve 11 accounts for two-thirds of the overall size of the die sleeve 1, and the lower die sleeve 12 accounts for one-third of the overall size of the die sleeve 1. Fixed rods 121 are arranged on both sides of the lower die sleeve 12. The fixed rods 121 are arranged in the middle of the lower die sleeve 12 and extend outward at both ends in the horizontal direction. A circular arc asymptote is arranged on the top of the fixed rods 121; a limiting rod 111 is arranged at the top of the middle of the upper die sleeve 11, and the limiting rod 111 is connected to the running die sleeve 11 by bolts. A hole for accommodating the limiting rod 111 is arranged inside the upper die sleeve 11, and a thread is arranged at the bottom of the limiting rod 111, which can be fixed in the hole of the upper die sleeve 11, and the limiting rod 111 can pass through the interior of the upper die sleeve 11.

[0035] The upper die set 11 and the lower die set 12 are connected by a slot 14, see Figure 4 The connecting surfaces of the upper die sleeve 11 and the lower die sleeve 12 are both provided with a slot 14 extending outward, and the extended slots 14 have the same structure. The slots 14 provided on the upper die sleeve 11 can be matched and connected with the slots 14 provided on the lower die sleeve 12, and the connected upper die sleeve 11 and the lower die sleeve 12 form a die sleeve 1, which is in the shape of a whole hollow cylinder.

[0036] The assembled mold sleeve 1 forms a limiting flange 13 on one side of the hollow cylinder, and the limiting flange 13 can limit the movement range and movement direction of the repair mold 2 in the mold sleeve 1.

[0037] Reference Figure 2 , Figure 3 , the limiting flange 13 is respectively arranged on one side of the upper die sleeve 11 and the lower die sleeve 12, and a complete circular ring can be formed when the upper die sleeve 11 and the lower die sleeve 12 are combined. In the lower die sleeve 12, the slot 14 protrudes at one end of the lower die sleeve 12 and extends in the direction of the cylinder height; the limiting flange 13 arranged on the lower die sleeve 12 covers the entire side of the protruding slot 14 of the lower die sleeve 12. The limiting flange 13 arranged on the upper die sleeve 11 can be spliced ​​with the limiting flange 13 arranged on the lower die sleeve 12 to form a circular ring. The diameter of the smallest part of the circular ring is shorter than the smallest diameter of the hollow cylinder formed by the upper die sleeve 11 and the lower die sleeve 12, and can block the passage of the repair mold. The fixing rods 121 arranged at both ends of the lower die sleeve 12 are fixed to the two ends of the lower die sleeve 12 by welding, and the two fixing rods 121 are both on the same horizontal plane and perpendicular to the plane where the limiting rod 111 is located.

[0038] Reference Figure 1 The repair mold 2 is composed of two half molds of the same shape. After the half molds are assembled, they can be fixed in the mold sleeve 1. The limiting flange 13 set on the mold sleeve 1 can prevent the repair mold 2 from passing through the mold sleeve 1. The limiting rod 111 set on the top of the upper mold sleeve 11 can limit the position of the repair mold 2 inside the mold sleeve 1.

[0039] Reference Figure 4The structure of the half mold is shown in the figure. Two half molds are connected and matched to form a repair mold 2. The half mold is arched, and a boss 23 protruding forward is provided at one end of the arch. The shape of the boss 23 is consistent with that of the half mold, and the maximum outer diameter of the boss 23 is smaller than that of the half mold. The half mold has two planes of the arch, which are symmetrically arranged. A protrusion 22 protruding from the vertical plane is provided on the plane on one side, and a depression 21 inward from the vertical plane is provided on the plane on the other side. The shape of the protrusion 22 is consistent with that of the depression 21. The two half molds can form a repair mold 2 through the cooperation of the protrusion 22 and the depression 21. A circular arc asymptote is provided on the side of the repair mold 2 away from the boss 23, and the circular arc asymptote can assist the wire core to be repaired to enter the repair mold 2. The repair mold 2 is a hollow cylinder as a whole, and the inner side of the hollow cylinder can accommodate the cable core to be repaired, and the broken wire core can be repaired. The outer diameter of the repair mold 2 is the same as the inner diameter of the mold sleeve 1, and can be fixed in the mold sleeve 1. When the repair mold 2 is fixed in the mold sleeve 1, the limiting rod 111 of the mold sleeve 1 can be twisted to press the repair mold 2 in the mold sleeve 1. The limiting flange 13 of the mold sleeve 1 can limit the position and movement range of the repair mold 2 in the mold sleeve.

[0040] During the repair process, the position of the mold sleeve can be fixed by the fixing rod 121 to prevent the mold sleeve from shifting during the repair process of the cable.

[0041] The invention discloses a repairing method for a wire conductor repairing device. In the process of cable production, it is inevitable that the cable core will be broken. At this time, the broken cable core needs to be repaired.

[0042] During the repair process, a wire conductor repair device is required. The specific steps are as follows:

[0043] Step 1, connect and cooperate two half molds with each other through the recess 21 and the protrusion 22 to form a repair mold 2; combine the upper mold sleeve 11 and the lower mold sleeve 12 to form a mold sleeve 1, and control the fixing rod 121 to fix the mold sleeve 1.

[0044] Step 2: Assemble the repairing mold 2 into the mold sleeve 1 , and control the fixing rod 121 to fix the repairing mold 2 .

[0045] Step 3, extract the broken core inside the cable core that broke during the production process, select one or a complete core, fix each complete core to each part of the broken cable core, and fix it to the original core by welding, only weld at one place, and pass the welded core through the repair mold 2.

[0046] In step 2, the fixing rod 121 can be fixed on the workbench, and the fixing rod 121 does not move when the broken wire core is repaired, so as to avoid deviation during the repair process that affects the repair effect.

[0047] In step 3, only one point of the wire core after welding is connected to the entire wire core, and part of the wire core does not form a complete wire core with the entire wire core, that is, the confidence after welding is easy to disperse, resulting in damage to the entire wire core. When the welded wire core passes through the repair mold 2, the repair mold 2 can squeeze the welded wire core into the entire wire core to ensure that the repaired wire core forms a complete, non-dispersed wire core.

[0048] In step 3, the wire core to be repaired enters the repair mold 2 from the side of the arc asymptote of the repair mold 2 (ie, the side away from the boss 23), and leaves from the side of the boss 23 of the repair mold 2.

[0049] The repair mold 2 is composed of two half molds, which can provide precise guidance and fixation for cable repair. They can braid the welded wire core into a circle. The repair mold 2 is fixed in the mold sleeve 1, with a stable structure, avoiding errors caused by offset or inaccuracy in manual repair.

[0050] A limited flange 13 is formed in the mold sleeve 1, and a boss 23 that cooperates with the flange is provided in the repair mold 2. The limited flange 13 cooperates with the boss 23 to avoid the displacement of the mold sleeve 1 during the repair process, and the boss 23 can further enhance the fixing effect of the repair mold 1.

[0051] Fixed rods 121 are arranged on both sides of the mold sleeve 1. During the process of repairing the cable, the fixed rods 121 can stabilize the mold sleeve 1 to prevent the mold sleeve 1 from deflecting during the repair process, thereby improving the overall working stability.

[0052] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wire conductor repair device, comprising: A mold sleeve and a repair mold, wherein the repair mold is arranged inside the mold sleeve, Features: The die sleeve comprises an upper die sleeve and a lower die sleeve, a limiting rod is arranged in the middle of the upper die sleeve, and fixing rods are arranged on both sides of the lower die sleeve. The upper die sleeve and the lower die sleeve are connected by a slot, and the overall shape after connection is a hollow cylinder; The repair mold is fixed in the hollow cylinder of the mold sleeve. The repair mold is composed of two identical half molds. The half molds are respectively provided with depressions and protrusions at the fitting surfaces. The half molds are fixed by the depressions and protrusions. The half molds are combined to form a hollow cylinder. A limiting flange is formed on one side of the hollow cylinder of the mold sleeve, and when the repair mold is fixed in the mold sleeve, the limiting flange can limit the position of the repair mold in the mold sleeve. The middle part of the repairing mold can repair the cable.

2. The wire conductor repair device according to claim 1, characterized in that: A boss is provided at the connection between the repair mold and the limiting flange, and the boss can cooperate with the limiting flange.

3. The wire conductor repair device according to claim 2, characterized in that: A circular arc asymptote is arranged on the inner side of the hollow cylinder of the repairing mold away from the boss.

4. The wire conductor repair device according to claim 1, characterized in that: The limiting rod is connected to the mold sleeve by means of bolts, and the limiting rod can contact the repairing mold to provide a certain pressure.

5. The wire conductor repair device according to claim 1, characterized in that: The fixing rod can fix the mold sleeve to prevent the mold sleeve from shifting during the process of repairing the cable.

6. A repair method for a wire conductor repair device, wherein the repair method for a wire conductor repair device is implemented by using the wire conductor repair device according to any one of claims 1 to 5, characterized in that: include: Step 1: Assemble the two half molds to form the repair mold, combine the upper mold sleeve and the lower mold sleeve to form the mold sleeve, fix the mold sleeve by the fixing rod, and fix the repair mold into the mold sleeve; Step 2: Adjust the limiting rod to fix the position of the repair mold in the mold sleeve; Step 3: Pull out the broken core inside the broken cable core, fix the complete core on the original core by welding, and pass the welded core through the repair mold.

7. A repair method for a wire conductor repair device according to claim 6, characterized in that: The welded wire core enters the repairing mold from the side of the arc asymptote and leaves the repairing mold from the side of the boss.

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