Principle of hydraulic pliers:
The hydraulic clamp is composed of oil tank, power mechanism, reversing valve, pressure relief valve and pump mechanism. The pump mechanism is composed of oil pump body, high and low pressure oil outlet hole, eccentric shaft, eccentric bearing, driven gear and a pair of high pressure oil pump and a low pressure oil pump. The oil pump body is suspended on the oil tank cover, the high and low pressure oil outlet hole is opened on the oil pump body, and the oil circuit of the pressure relief valve is connected. The upper end is arranged in the center of the oil pump body, the lower end is fixed with eccentric bearing, driven gear is fixed on the top of the eccentric shaft, connected with the power mechanism, the high and low pressure oil pump is suspended on the oil pump body, each with an eccentric bearing contact with the actuator, the high and low pressure oil pump chamber are respectively connected with the high and low pressure oil outlet hole. The connection between the pump mechanism and the power mechanism is vertical connection, which can make full use of the space and reduce the land area, which is conducive to operation and transportation; The pump oil form of high and low pressure oil pump is changed into the action form of eccentric bearing, which has the advantages of simple structure, fewer parts and convenient assembly.
Classification:
Hydraulic pliers according to its structural form, can be divided into integral hydraulic pliers and split hydraulic pliers. Integral hydraulic clamp functional module and power module integrated design, small size, light weight, easy to carry, suitable for temporary repair and other small operations. Split hydraulic clamp function module and power separation, through the tubing and other accessories connected with power, manual or electric, very flexible.
According to the function can be divided into hydraulic crimping pliers and hydraulic cutting pliers, hydraulic crimping pliers for various crimping operations, such as copper and aluminum terminal crimping, riveting and so on; Hydraulic cutting pliers are used to cut off various materials, such as steel bars, cables and so on.
How to use:
1. First check whether the press terminal and wire specifications.
2. Select the mold you want to press. For example, if the size of the terminal to be pressed is 240mm2, select the upper and lower mold of 240mm2.
3. Load each mold into the piston and mold fixing seat.
4. Pump use method: Tighten the oil return switch clockwise and repeatedly shake the handle, and watch the mold. When the upper and lower die touch in one place, it means that the pressing is complete. If the user does not pay attention to continue shaking, the pump will have a "click" sound, which is the safety protection device open and the piston stops moving forward.
