Working Principle of Double Toggle Jaw Crusher

In the realm of mining and aggregate industries, jaw crushers serve as a core equipment for crushing raw materials into manageable sizes. Among the different types of jaw crushers, the double toggle jaw crusher stands distinct for its dual-rocking motion and durable performance. In this article, we will delve into the working principle of the double toggle jaw crusher—a crucial machine in materials processing—and uncover its significance, advantages, and operational mechanism.

What is a Double Toggle Jaw Crusher?

A double toggle jaw crusher is a type of jaw crusher that functions with two toggling mechanisms. Unlike single toggle crushers, where the jaw flexes downward, the double toggle model incorporates two shafts—an eccentric and a pivot—and the toggles, which enable a comparative motion for more aggressive crushing.

This design not only makes it suitable for hard and abrasive materials like basalt, granite, quartzite, and concrete but also extends the machine's lifespan through even stress distribution.

Understanding the Working Principle

1. Structure Anatomy

The double toggle jaw crusher comprises two main components: a movable jaw and a stationary jaw. These are mounted on a pitman, and as its name suggests, it operates with two toggles. It includes an eccentric shaft driven by a motor and a pulley.

2. Operational Mechanics

Upon electric motor activation, the eccentric shaft starts to rotate, causing the pitman and toggles to swing back and forth. This motion translates into horizontal and vertical movement of the movable jaw, creating a compressive force on the materials being fed into the chamber.

The two toggles help amplify the force exerted on the materials, thus facilitating better crushing action. As the movable jaw moves away from the stationary jaw in its return stroke, it allows crushed materials to pass through the discharge opening.

3. Cycle Repetition

This crushing cycle repeats consistently as long as the crusher is in operation. With each cycle, large chunks of material are broken down to finer fragments, with oversized pieces being automatically directed back into the chamber for further reduction.

Reasons to Choose a Double Toggle Jaw Crusher

• Efficient Crushing of Hard Materials: Its ability to handle very hard materials makes it ideal for mining applications, where high durability and low maintenance are required.

• Prolonged Service Life: The optimal design minimizes wear and tear, distributing stress across the mechanism, thus enhancing longevity.

• Enhanced Crushing Capacity: The dual-toggle operation equates to better crushing efficiency, reducing energy consumption and optimizing throughput.

Key Advantages of Double Toggle Jaw Crusher

1. High Productivity: Its mechanism ensures a substantial output, saving time and boosting project efficiency.

2. Low Ownership Cost: Its robust design translates to reduced frequency of maintenance and potential outages.

3. Superior Material Handling: Effectively handles the toughest materials without compromising on performance.

4. Safety and Reliability: With fewer parts subject to wear, this type of crusher sees fewer breakdowns, ensuring prolonged periods of uninterrupted operation.

In summary, the double-toggle jaw crusher is a heavy-duty machine that's relevant in industries requiring the treatment of abrasive and hard stone materials. Understanding its working principle helps in not only optimizing its utility but also prolonging its service life. With a robust design and high crushing efficiency, this crusher stands as an indispensable asset to mining and construction operations, ensuring consistent performance in demanding environments.

By incorporating a double-toggle jaw crusher, operations can achieve upper hand competitiveness in material processing, leading to enhanced productivity and profitability.