Analysis of the Power Recovery System for 50-ton Energy-saving Excavator

1.System Introduction

This 50-ton energy-saving excavator integrates an advanced power recovery system, which can efficiently collect the inertia and braking energy generated during operation and convert it into electrical energy for storage in the energy storage device, achieving recycling. This system significantly improves the fuel economy of the entire machine, reduces pollutant emissions, and simultaneously enhances the comprehensive working performance of the equipment.

2.Working principle

This system mainly achieves energy recovery through the following two mechanisms:

Rotary braking energy recovery: When the upper platform of the excavator decelerates and brakes, the rotary motor switches to power generation mode, converting mechanical energy into electrical energy and storing it in a super capacitor or battery.

Boom potential energy recovery: When the boom descends, high-pressure oil is discharged from the hydraulic cylinder, driving the hydraulic motor to generate electricity, achieving the conversion and storage of gravitational potential energy into electrical energy.

3.System advantages

High efficiency and energy saving: The recovered energy can be used to assist the operation of equipment, reduce the load on the engine, and effectively lower fuel consumption.

Green and environmentally friendly: By reducing fuel usage, it directly cuts down on the emissions of carbon dioxide and other harmful gases.

Power enhancement: Release stored electrical energy during high-load operations to provide additional power support and enhance the equipment's response and operational capabilities.

Extended service life: The reduced operating load of the engine helps to extend the service life and maintenance cycle of the entire machine.

4.Applicable scenarios

This 50-ton energy-saving excavator is widely used in heavy-duty working conditions such as mines, construction sites, and water conservancy projects, especially suitable for high-intensity operation scenarios that require frequent starts and stops, rotations, and boom lifting.

5.Future Outlook

With the tightening of global environmental protection regulations and the development of energy technologies, power recovery systems will gradually become a standard configuration for medium and large-sized construction machinery. This system will be deeply integrated with hybrid power, pure electric drive and other technologies in the future, continuously enhancing energy-saving levels and the sustainable operation capabilities of equipment.

The 50-ton energy-saving excavator, with its leading technology and design concept, demonstrates significant advantages in multiple key dimensions, which are specifically reflected in the following aspects:

1.Energy conservation and environmental protection

Power recovery system: Equipped with an advanced energy recovery system, it effectively captures the energy generated during the rotary braking and boom descent processes, converts it into electrical energy and stores it for utilization, significantly reducing fuel consumption and carbon dioxide emissions.

High-efficiency engine: It adopts a turbocharged engine with low fuel consumption and low emissions, combined with electronically controlled high-pressure common rail fuel injection technology, further enhancing combustion efficiency and energy utilization rate.

Intelligent idle speed control: The equipment automatically reduces the engine speed in the idle state, minimizing ineffective energy consumption and achieving refined energy consumption management during the operation process.

2.Efficient operation

Strong power configuration: Matched with a high-power engine and a high-performance hydraulic system, it provides abundant and stable power output, ensuring continuous and efficient operation under heavy load conditions.

Operation cycle optimization: Through in-depth optimization of the hydraulic system and control algorithms, the continuity and speed of actions such as excavation, rotation, and unloading are significantly enhanced, and the cycle time is shortened.

Multi-mode flexible switching: It features multiple operation modes such as heavy-load, standard, and economy. Users can flexibly select based on their actual working conditions to achieve the best balance between efficiency and energy consumption.

3.Reliable and durable

Structural reinforcement design: Key structural components are manufactured using high-strength steel and reinforcement processes to ensure high reliability and long service life of the equipment in harsh environments.

High-efficiency filtration system: Equipped with multi-stage high-precision air, fuel and hydraulic oil filtration systems, it effectively extends the service life of the engine and hydraulic components.

Maintenance convenience: The well-arranged inspection points and modular design significantly reduce the difficulty of daily maintenance and troubleshooting, maximizing the equipment's availability and usability.

Company Strength:

Shandong Shitian Heavy Industry Co., Ltd. is located in the High-tech Industrial Development Zone of Jining City, Shandong Province. It is a national high-tech enterprise with import and export qualifications. The group has 9 subsidiaries worldwide, with a total production area of 120,000 square meters. It currently has over 700 employees, among whom more than 50 are professional technicians and senior engineers.

The company has long been dedicated to the research and development, design and manufacturing of a full range of excavators, bulldozers and other construction machinery. It is a benchmark enterprise in the field of large-scale energy-saving mining machinery and micro electric machinery in China. Its mining equipment and micro electric equipment series have entered the international leading ranks.

A variety of main models - including SH60-8, SH220-8, SH380-9, SH470-9, SH500-9, SH600-9, etc. - integrate advanced manufacturing techniques and design concepts from Japan and Germany. They have been strictly verified over many years in harsh working conditions such as mines, highways, and quarries. It has won wide trust with its outstanding energy-saving effect and stable performance.

Relying on a highly international perspective and a team of experienced engineers, the company has always adhered to the product concept of "reliability, energy conservation and efficiency", and the quality policy of "focusing on details and lean manufacturing". It constantly promotes the technological upgrading and quality improvement of its products, and helps Chinese construction machinery brands go global.

Why Choose Us:

1. We have an independent R&D team and cooperate with 3 large collaborative teams to develop and upgrade products. There are 8 core R&D members and 28 R&D and trial production staff.

2. Utilizing the international advanced TQc total quality management system to implement quality control management.

3. 21 senior technical service personnel to provide a full range of after-sales service.

4. Advanced production management team, industry management experience of more than 15 years, to ensure the assembly quality.