What is the principle of hydraulic clamp?

The principle of hydraulic clamp:

The hydraulic clamp consists of an oil tank, a power mechanism, a reversing valve, a pressure relief valve, and an oil pump mechanism. The oil pump mechanism consists of an oil pump body, high- and low-pressure oil outlets, an eccentric shaft, an eccentric bearing, a driven gear, and a pair of high-pressure oil pumps. It is composed of a low-pressure oil pump. The oil pump body is suspended on the oil tank cover. The high- and low-pressure oil outlets are opened on the oil pump body and connected to the pressure relief valve oil circuit. The eccentric shaft is set longitudinally, and the upper end is pivoted in the center of the oil pump body. An eccentric bearing is fixed at the lower end, and the driven gear is fixed on the top of the eccentric shaft and connected with the power mechanism. The high and low pressure oil pumps are suspended on the oil pump body, each with an actuator in contact with the eccentric bearing. The pump chamber is connected to the high and low pressure oil outlet holes respectively. The connection between the pump oil mechanism and the power mechanism is a vertical connection, which can make full use of space and minimize the floor area, which is conducive to operation and transportation; change the oil pumping form of the high and low pressure oil pumps into the actuation form of the eccentric bearing, which has a structural It has the advantages of simplicity, fewer parts, and ease of assembly.

Classification:

Hydraulic tongs can be divided into integral hydraulic tongs and split hydraulic tongs according to their structural forms. The integrated hydraulic clamp functional module and power module are designed in an integrated manner. It is small in size, light in weight and easy to carry. It is suitable for temporary small-scale operations such as out-of-town repairs. The functional module of the split hydraulic clamp is separated from the power, and is connected to the power through oil pipes and other accessories. It can be manual or electric, and is very flexible.

According to the function, it can be divided into hydraulic crimping pliers and hydraulic cutting pliers. Hydraulic crimping pliers are used for various crimping operations, such as copper and aluminum terminal crimping, riveting, etc.; hydraulic cutting pliers are used for cutting various materials, such as steel bars. , cables, etc.

Instructions:

1. First check whether the crimped terminals and wire specifications match.

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 molds of 240mm2.

3. Install each mold into the piston and mold holder.

4. How to use the pump: Tighten the oil inlet and return switch clockwise, shake the handle repeatedly, and watch the mold. When the upper and lower molds touch together, it means that the pressing is complete. If the user continues to shake without paying attention, the pump will If there is a "clicking" sound, this means that the safety protection device is opened and the piston stops moving forward. At this time, the oil return switch should be turned counterclockwise, and the piston will return to its original position.