Shearer pick and roadheader pick are one of the vulnerable parts in coal mining and roadway tunneling machinery, and their mechanical properties directly affect the efficiency of coal mining. Therefore, the production and manufacturing process of the cutting tooth of the roadheader coal machine and the cutting tooth production equipment are very important. Usually according to the material of the pick, there are many production and manufacturing processes. At present, in order to provide its service life, hot extrusion (hot forging) is mostly used for processing and forming, and then heat treatment, etc., the roadheader produced by this method The coal machine has a long service life and high production efficiency.
So, what kind of machinery and equipment is used to produce the cutting teeth of the roadheader coal machine? According to its production process, in the hot extrusion process, the metal heat is selectedExtrusion hydraulic pressWill be more suitable, commonly used 500 tons, 630 tons, 800 tons, etc.four-column hydraulic press. The stamping stroke limit height can be adjusted according to customer needs. The jacking cylinder ejection force and the pressing edge force (which can realize forging and stretching) are adjustable. It adopts large diameter, interpolated control valve, strong oil passing capacity, large flow rate, small pressure loss and high reliability. The hot extrusion hydraulic press of 630-ton coal cutter-roadheader cutter hot forging forming equipment adopts a two-speed mode, the main cylinder adopts a piston mother cylinder structure, the main cylinder is embedded in the sub-cylinder, and the cross-sectional area is small, which can promote the rapid reduction of the main cylinder with less oil. When the main cylinder is close to the product, the sub-cylinder stops working, the mother cylinder is rapidly formed, the no-load power consumption is low, the mode locking is fast, and the low power consumption can be quickly deepened; equipped with intelligent sensing system and adaptive mode, it can realize single motor dual system, Single motor single system, dual motor dual system, multi-system and other two-speed fast control modes;
630-ton coal machine pick hot extrusion hydraulic press-roadheader pick hot forging forming equipmentThe forging process is:
Feeding (cold shearing on bar shearing machine or punching machine) → heating (initial forging temperature is 1200 ℃)→ extrusion molding (630 ton four-column hydraulic press) → post-treatment. Bar stock → cutting breaking → hot extrusion blank → rough machining → solution treatment → mechanical property inspection → finishing forming
The principle of 630 tons four-column hydraulic press hot extrusion roadheader coal cutter:
630-ton coal machine pick hot extrusion hydraulic press-roadheader pick hot forging forming equipmentThe work is mainly achieved through hydraulic transmission. Hydraulic transmission is the use of liquid pressure to transmit power and control a transmission. The hydraulic device is composed of hydraulic pumps, hydraulic cylinders (hydraulic motors and other actuators), hydraulic control valves and hydraulic auxiliary components.
Hydraulic pump: A conversion device that converts mechanical energy into hydraulic energy.
Hydraulic cylinders (actuators such as hydraulic motors): convert hydraulic energy into mechanical energy.
Control valve: control the flow of hydraulic oil, flow direction, pressure, hydraulic actuator working sequence and protection of the hydraulic circuit. The popular point is to control and adjust the flow direction, pressure and flow of the hydraulic medium, so as to control the movement direction of the actuator, the output force or torque, the movement speed, the action sequence, and limit and adjust the working pressure of the hydraulic system to prevent Overload and other functions (such as check valve, reversing valve, overflow valve, pressure reducing valve, sequence valve, throttle valve, speed control valve, etc.).
This paragraph in the text630-ton coal machine pick hot extrusion hydraulic press-roadheader pick hot forging forming equipmentIt's ShandongZhongyou Heavy IndustryDesigned and customized for Henan customers, the equipment has been officially put into production at present, and the debugging personnel have also fed back relevant products and videos from the customers. You can learn together. If you also need this kind of hot extrusion hydraulic press, you can call for advice.Manager Ding: 13562463338 (WeChat can be added)