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CN-117086804-B - Quick-assembling wrench for water-cooled cable of electric furnace coil of spheroidal graphite cast iron pipeline

CN117086804BCN 117086804 BCN117086804 BCN 117086804BCN-117086804-B

Abstract

The invention discloses a quick-assembling wrench for a water-cooled cable of an electric furnace coil of a spheroidal graphite cast iron pipeline, and relates to the technical field of wrenches. This nodular cast iron pipeline electric stove coil water-cooling cable fast-assembling spanner, including the spanner body, the spanner body includes the spanner head, the spanner body is kept away from the one end of spanner head and is provided with the connecting rod, the connecting rod is used for connecting extension sleeve, the end of spanner body rotates with the connecting rod to be connected, extension sleeve can overlap the end of establishing at the spanner body. The quick-mounting spanner for the water-cooling cable of the electric furnace coil of the spheroidal graphite cast iron pipeline is matched with different sleeving positions of the lengthened sleeve, so that the rotation of the connecting rod and the spanner body can be locked when the lengthened sleeve is sleeved to a small extent, further, the spanner can be conveniently rotated by lengthening moment, when an obstacle is met, the lengthened sleeve is shallower, the lengthened sleeve and the connecting rod can rotate relative to the spanner, and further, the lengthened sleeve and the tail end of the spanner can bypass the obstacle.

Inventors

  • YANG JUNCHUN
  • YANG JINPING

Assignees

  • 圣戈班管道系统有限公司
  • 穆松桥新材料科技有限公司

Dates

Publication Date
20260508
Application Date
20230809

Claims (4)

  1. 1. The quick-mounting wrench for the water-cooled cable of the ductile cast iron pipeline electric furnace coil comprises a wrench body (1), wherein the wrench body (1) comprises a wrench head (15), one end, far away from the wrench head (15), of the wrench body (1) is provided with a connecting rod (2), and the connecting rod (2) is used for being connected with an lengthening sleeve (4), and is characterized in that the tail end of the wrench body (1) is rotationally connected with the connecting rod (2), and the lengthening sleeve (4) can be sleeved at the tail end of the wrench body (1); When the lengthening sleeve (4) is only sleeved on the connecting rod (2), the whole formed by the lengthening sleeve (4) and the connecting rod (2) can rotate relative to the tail end of the wrench body (1); When the lengthening sleeve (4) is sleeved on the connecting rod (2) and the tail end of the wrench body (1) is sleeved at the same time, the lengthening sleeve (4) can not rotate relative to the tail end of the wrench body (1); the wrench is characterized in that the wrench body (1) is rotationally connected with the wrench head (15), a U-shaped notch B (151) is formed in one end, close to the wrench body (1), of the wrench head (15), and one end, close to the wrench head (15), of the wrench body (1) is rotationally connected with the U-shaped notch B (151) through a bolt B (152); A lock hole (153) is formed in the U-shaped notch B (151), a through hole (14) is formed in the axis direction of the wrench body (1), the through hole (14) is coaxial with the lock hole (153), a lock rod (3) is arranged in the through hole (14), the lock rod (3) can be inserted into the lock hole (153) through the through hole (14), when the lock rod (3) is inserted into the lock hole (153), the wrench body (1) and the wrench head (15) are locked, and the wrench body (1) and the wrench head (15) cannot rotate relatively; one end of the through hole (14) far away from the lock hole (153) extends to the tail end of the wrench body (1), one end of the lock rod (3) far away from the lock hole (153) also extends to the tail end of the wrench body (1), the length of the lock rod (3) is larger than that of the through hole (14), and after the tail end of the lock rod (3) enters the through hole (14), the other end of the lock rod (3) can be inserted into the lock hole (153); The lengthening sleeve (4) can push the lock rod (3) into the through hole (14) when sleeved at the tail end of the wrench body (1); a spring (142) is arranged in the through hole (14), the spring (142) is sleeved on the lock rod (3), a flange (143) is arranged on the lock rod (3), one end of the spring (142) is connected with the flange (143), the other end of the spring is connected with the inner wall of the through hole (14), and when the spring (142) is not stressed, the lock rod (3) can be pulled out of the lock hole (153); The tail end of the wrench body (1) is provided with a U-shaped notch A (121), and the connecting rod (2) is rotationally connected with the tail end of the wrench body (1) through a bolt A (122) and the U-shaped notch A (121); the connecting rod (2) is provided with a bulge A (21) near one end of the tail end of the wrench body (1), and the bulge A (21) is rotationally connected with a U-shaped notch B (121) through a bolt A (122).
  2. 2. The quick-assembling wrench for the water-cooled cable of the electric furnace coil of the nodular cast iron pipeline according to claim 1, wherein the diameter of the connecting rod (2) is the same as the diameter of the tail end of the wrench body (1).
  3. 3. The quick-assembling wrench for the water-cooled cable of the electric furnace coil of the nodular cast iron pipeline according to claim 1, wherein a transition section (11) is arranged between the tail end of the wrench body (1) and the wrench body (1).
  4. 4. The quick-assembling wrench for the water-cooled cable of the electric furnace coil of the spheroidal graphite cast iron pipeline according to claim 1, wherein the wrench body (1) is provided with a hanging ring (13).

Description

Quick-assembling wrench for water-cooled cable of electric furnace coil of spheroidal graphite cast iron pipeline Technical Field The invention relates to the technical field of wrenches, in particular to a quick-assembling wrench for a water-cooled cable of an electric furnace coil of a spheroidal graphite cast iron pipeline. Background The spheroidal graphite cast iron pipe is a pipe which is cast by casting molten iron with more than 18 numbers through a centrifugal spheroidal graphite cast iron machine at high speed after adding a nodulizer, and is called a spheroidal graphite cast pipe, a spheroidal graphite cast iron pipe and the like for short. The material is mainly used for conveying tap water and is an ideal material for selecting tap water pipelines. The intermediate frequency electric furnace plays an important role in the production flow of cast iron pipelines, and is main equipment for producing molten iron. The molten iron produced by the blast furnace can be qualified raw materials of cast iron pipelines only after the processes of temperature rising, tempering, deslagging and the like of the intermediate frequency electric furnace. The electric furnace works by means of electromagnetic induction principle, high-frequency current passes through the coil to generate an alternating magnetic field, and high-quality metal conductor scattered raw materials placed in the furnace body are melted into molten iron under the action of the alternating magnetic field due to the high resistance of the contact surface. The maximum power of the coil is 5000KW when in work, and the coil has the characteristics of high voltage and large current. When coil electric energy is transmitted to the coil from the control cabinet through the water-cooling cable, the cable generates great heat when the current passes through due to overlarge passing current, so that the water-cooling cable is required to be cooled continuously by circulating water with large flow, and the expensive water-cooling cable is prevented from being overheated and damaged. Because the water-cooled cable has large current-carrying capacity and complex multi-layer structure, the weight of each cable is large. Each electric furnace coil is provided with 8 water-cooling cables, and 4 cable installation interfaces at each installation position are distributed in a square shape, so that the structure is compact. Because the water-cooled cable connection needs to be conductive, no sealing measures can be taken during the cable installation. Moreover, the operation characteristics of the electric furnace have high requirements on the insulation performance of the coil, and no water leakage at any point can occur at all installation positions. Once water leaks, the production is stopped for maintenance if the water leaks, and production accidents can be caused if the water leaks are heavy. And the operation space is narrow and the surrounding barriers are more, when the water-cooled cable is overhauled and is assembled back after the operation is finished, the existing tool is difficult to spread, only a little fastening can be performed by a plurality of people and people to exert force together, and the water-cooled cable connection copper head is difficult to fasten in place at the interface at one time. In order to improve the fastening efficiency of the above-mentioned interface, it is generally selected to connect an extension sleeve at the end of the wrench to increase the torque, but in the case of a small working space, the rotation of the wrench itself may be affected, and the rotation of the wrench may be affected by the extension sleeve. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a quick-mounting wrench for a water-cooling cable of a ductile iron pipeline electric furnace coil, which solves the following technical problems: 1. when the wrench and the lengthened sleeve are used in a narrow space, the lengthened sleeve is not easy to cross the obstacle, and the locking and releasing states of the existing single-hinge wrench on the hinge cannot be linked with the sleeve depth and the sleeve depth of the lengthened sleeve; 2. When the wrench and the lengthened sleeve are used in a narrow space, the wrench and the lengthened sleeve are not easy to cross the obstacle, and the locking and releasing states of the existing double-hinge wrench on the hinge cannot be linked with the sleeve depth and the sleeve depth of the lengthened sleeve. (II) technical scheme The quick-mounting wrench for the water-cooled cable of the ductile cast iron pipeline electric furnace coil comprises a wrench body, wherein the wrench body comprises a wrench head, a connecting rod is arranged at one end, far away from the wrench head, of the wrench body, the connecting rod is used for connecting an extension sleeve, the tail end of the wrench body is rotationally connected with the connecti