Crimping pliers are necessary tools for wire crimping in line construction and line maintenance in power industry.

By tank, power establishment, reversing valve, pressure relief valve, pump oil, institutions, oil pump body by the oil hole, high and low pressure oil pump body, eccentric shaft, eccentric bearing, driven gear and a pair of high pressure oil pump, and a low pressure oil pump, oil pump body suspended solid in the cap, high and low pressure oil out of the oil hole opening on the pump body, connected to the oil pressure relief valve, eccentric shaft longitudinally Settings, the upper central pivot in the pump body, the bottom fixed eccentric bearing, driven gear fixed on the top of the eccentric shaft, and the dynamic mechanism, high and low pressure oil pump on the suspended solid in the pump body, each has a moving parts in contact with eccentric bearing, The pump cavities of the high and low pressure oil pumps are respectively communicated with the oil outlet holes of the high and low pressure oil pumps. Advantages: the connection between the oil pump mechanism and the power mechanism is a vertical connection, which can make full use of the space and reduce the occupation area, which is conducive to the operation and transportation; The pump oil form of high and low pressure oil pump is changed into the acting form of eccentric bearing, which has the advantages of simple structure, few parts and convenient assembly.

Usage method

1, aluminum core (single) wire line connection method

(1) select the pressed film and oval aluminum sleeve according to the wire section; (2) strip the insulation sheath of the conductor at the connection. Strip the length of the aluminum sleeve, which is usually plus 5~10mm (naked aluminum wire does not have this kind), and brush the oxide layer (film) on the surface of the core wire with steel wire; (3) with another clean wire brush dipped in some vaseline zinc paste evenly altered on the core wire, to prevent the regeneration of the oxide layer. (4) use a round wire brush to remove the oxide layer and oil scale on the inner wall of the aluminum casing, and preferably apply vaseline zinc paste on the inner wall of the pipe. (5) Pierce two core wires into the aluminum sleeve relatively, so that the two wire ends meet exactly in the middle of the aluminum sleeve. (6) according to the thickness of the aluminum sleeve, select an appropriate wire mold and install it on the clamp. After tightening the positioning screw, insert the core wire with aluminum sleeve into the wire mold. (7) align the aluminum sleeve, squeeze the clamp handle with force, and then press: first press the two pits at both ends, then press the two pits in the center, the pressure pit should be upward. After the end of the joint pressing, check the aluminum sleeve bending should not be greater than 2% of the pipe length, or it should be straightened with a wooden hammer; Aluminum sleeve should not have cracks; The wire outside the aluminum sleeve shall not have the appearance of "lantern" shape bulge or "cramp" shape irregularity. (8) wipe off the remaining ointment and apply a layer of quick-drying bituminous paint at both ends and the joint of the aluminum sleeve. Then aluminum sleeve and exposed wire some first wrap two layers of yellow wax belt, then wrap two layers of black tape, always hold to the insulation layer 20mm local

2, aluminum core (single) strand wire and equipment bolt compression type wiring pile connection method

(1) choose suitable aluminum lug according to the thickness of core wire. (2) brush away the oxide layer on the surface of the core wire and evenly apply vaseline zinc powder. (3) brush away the oxide layer on the inner wall of the lug jack, and coat the inner wall with vaseline zinc powder. (4) insert the core wire into the connector hole of the lug and insert it to the bottom of the hole. (5) select the appropriate wire mold and press two pits on the front of the lug. First press the outer pit and then the inner pit. The two pits should be on the same line. (6) wrap the insulating tape between the wiring ear and the wire stripping insulating layer (the insulating tape shall be wrapped from the wire insulating layer). (7) brush away the oxide layer on the opposite side of the lug and evenly apply vaseline zinc powder. (8) make the opposite side of the lug downward and put it on the screw of the lug head, then successively put on the plain washer and tension washer and fix them tightly with the nut.