Design Differences And Applicable Scenarios Analysis of Wear Resistant Accessories between Springs And Hydraulic Cone Crushers

As a key equipment for medium and fine crushing, the design and selection of wear-resistant components (mainly the rolling mill wall and crushing wall) of the cone crusher need to be deeply adapted to the working principle of the main machine. Spring cone breakage and hydraulic cone breakage (including multi cylinder and single cylinder) have different core structures and adjustment protection mechanisms, which directly affect the design concept, stress environment, and wear characteristics of their wear-resistant components. This article will compare and analyze the differences between the two based on their technical principles, and explore their typical application scenarios.

1、 Design impact caused by differences in core working principles

Comparison Dimension Spring Cone Crusher Hydraulic Cone Crusher (Multi cylinder/Single cylinder)

The over iron protection and discharge port reset rely on the expansion and contraction of the compression spring group to achieve over iron release and reset. When an unbreakable object enters, the moving cone is forced to press down on the spring; After the foreign object is expelled, it is reset by the spring force. Relying on hydraulic systems to achieve iron protection and chamber cleaning. Multi cylinder machines are locked by hydraulic cylinders and provide overload protection; The upper end of the main shaft of a single cylinder engine is directly supported by a hydraulic cylinder, integrating regulation and protection.

The discharge port adjustment method is mechanical adjustment. By rotating the adjustment ring, the height of the fixed cone (rolling bowl wall) can be changed, and manual locking is required after adjustment. Hydraulic adjustment. By driving the adjustment ring (multi cylinder) or directly lifting the cone (single cylinder) through the hydraulic system, the operation is more convenient and can be remotely controlled.

2、 Key differences in wear-resistant accessory design

The above core differences directly lead to differences in the design focus of wear-resistant accessories:

1. Response to "over iron" working conditions and component stress

Spring cone breakage: When passing through iron, the impact energy is mainly absorbed by the spring group and converted into compressive potential energy, and the peak impact force borne by the accessory is to some extent buffered. But its reset depends on the spring, which may result in incomplete or delayed reset, which can easily lead to additional wear or interference of the parts in abnormal positions.

Hydraulic cone breaking: The hydraulic system can more quickly and actively achieve iron release and reset (especially for multi cylinder machines). In theory, instantaneous impact protection for accessories is more direct. However, the response characteristics and pressure settings of the hydraulic system directly affect the size and form of the impact load transmitted to the components.

2. Accessory structure and connection method with the host

Rolling bowl wall (fixed cone lining plate):

Spring cone breakage: Its rolling bowl wall is connected to the adjusting ring through threads. The lining plate itself needs to withstand the torsional load caused by the rotation of the adjustment ring and maintain stability after adjustment, so there are high requirements for the fitting accuracy and anti loosening design of the lining plate and the adjustment ring thread.

Hydraulic cone break (multi cylinder): The connection method is similar, but due to the hydraulic drive adjustment, it relies less on manual operation, and thread wear may be relatively small. The fixed cone of a single cylinder engine is usually a monolithic structure or fixed to the frame, and its lining plate connection method is different from that of a spring/multi cylinder engine, with simpler force distribution.

Broken wall (dynamic cone lining plate):

The broken walls of both are fixed on the moving cone by pouring zinc alloy or epoxy resin. However, due to the subtle differences in the vibration characteristics of the host and the trajectory of the dynamic cone, the stress state of the casting layer may be different, and the stability requirements for the casting process are consistent.

3. The focus of wear uniformity design

Spring cone breakage: The adjustment range of the discharge port is relatively limited and inconvenient. In the later stage of lining wear, the product particle size may change significantly. The design of its lining profile focuses more on maintaining a relatively stable crushing effect throughout the entire life cycle.

Hydraulic cone breaking: It can easily achieve real-time or regular discharge port compensation, making it easier to maintain stable discharge particle size. Its lining design can focus more on controlling wear rates and improving metal utilization under set operating conditions.

3、 Suggestions for dividing applicable scenarios

The choice between the two is usually based on investment costs, operational and maintenance capabilities, and specific process requirements.

The scene features are more inclined towards spring cone breakage and more inclined towards hydraulic cone breakage

The initial investment for investment and maintenance budget is relatively limited, and the maintenance team is more familiar with the mechanical structure, while the hydraulic system maintenance capability is relatively weak. The budget is relatively sufficient, and one has or is willing to establish the ability to maintain hydraulic systems.

The material characteristics are suitable for situations where the material composition is relatively stable and the risk of mixing with non crushable materials is low. It is more suitable for situations with complex materials and high risk of iron passing, as its iron passing protection and cleaning function respond quickly.

Product requirements and automation have a certain tolerance for product granularity stability requirements, and production lines with low automation requirements. The requirement for product granularity stability is high, and it needs to be integrated with automated control systems to achieve remote monitoring and adjustment of modern production lines.

Operational flexibility is applicable to working conditions where production plans are relatively fixed and discharge ports are not frequently adjusted. Suitable for scenarios where product granularity needs to be flexibly adjusted according to market demand, or where a single device needs to handle multiple crushing tasks.

The intermediate crushing section of typical small and medium-sized sand and gravel aggregate plants; Partial cost sensitive iron ore and non-ferrous metal ore crushing projects. Large and modern sand and gravel aggregate production line; Large scale metal mine crushing processes that require high levels of automation; Mobile crushing station.

4、 Conclusion

The difference in wear-resistant accessory design between springs and hydraulic cone crushers lies in the fundamental differences in their over iron protection and adjustment mechanisms. The spring structure is classic and reliable, and has a specific impact on the response of accessories under impact; Hydraulic control is precise and convenient, providing a more proactive tool for managing wear and tear of components.

In terms of selection, there is no single choice that is applicable to all scenarios. The spring cone break still has value in specific applications due to its simple structure, intuitive maintenance, and relatively low investment threshold. And hydraulic cone breaking (especially multi cylinder type) exhibits its characteristics in particle size control, automation integration, and response to complex working conditions, which is more in line with the development trend of modern and large-scale production lines.

The final decision should take into account the initial investment, long-term operation and maintenance costs, material characteristics, product requirements, and the factory's own technical maintenance capabilities, in order to select the appropriate model and corresponding wear-resistant parts solution.