This product is developed using imported integrated circuits and electronic components and is based on the "Coal Mine Safety Regulations", designed in accordance with the provisions of GB 3836-2010 . GZY20, 32, 40, 66 mine explosion-proof hydraulic load cell (Hereinafter referred to as the sensor) is an explosion-proof electrical equipment and the explosion-proof mark is "ExdI Mb".

This product executive standard: GB3836.1-2010 General Requirements for Electrical Equipment for Explosive Atmospheres , GB 3836.2-2010 "Explosive Atmosphere Part 2 : Equipment Protected by Flameproof Enclosure " d "", GB 3836.3-2010 "Explosive Atmosphere Section" Part 3 : Increased safety "e" protection equipment" and Q/DJ 75-2019 "Explosion-proof hydraulic load cell for mines". 

Use environmental conditions

Working environment temperature: 0℃ ~ +40℃.

Relative humidity: ≤95%±3% (at +25℃).

Atmospheric pressure: 86kPa ~ 106kPa.

In a chamber where there is no dripping water, and where there is no corrosive gas.

Work in an environment where there is an explosive mixture of gas and coal dust underground.

Working conditions

The cable connected to the power supply requires a copper flame-retardant rubber sheathed cable of 1.5mm ² or more, and the insulation resistance between the core wires of the cable must be greater than 500 MΩ.

This product should be installed  in a location where there is no water, dripping or strong vibration.

2 Structural features and working principle 

2.1 Structural characteristics

a)      High precision, good sealing performance, easy maintenance;

b)      Easy installation and reliable performance;

c)       It adopts the form of the outlet mouth with simple and reliable structure

2.2 Working principle

The sensor works according to the working principle of power-to-electricity conversion, from non-electricity to electricity.

When a fixed weight is required, the sensor outputs (4-20) mA analog signal.

Introduction:

The hydraulic station is a hydraulic source device composed of a hydraulic pump, a motor, an oil tank, an electromagnetic reversing valve, and an overflow valve. The oil is supplied according to the flow direction, pressure and flow required by the driving device. It is suitable for various machinery where the driving device and the hydraulic station are separated. The hydraulic station and the driving device (cylinder or motor) can be connected with oil pipes to achieve various prescribed actions.

Note: The overflow valve, filter, pressure gauge, level gauge, etc. contained in the hydraulic station system are not marked in the figure, but they are included in the system configuration and quotation.

Note: 1 to 7 of the above forms are all standards for hydraulic stations so customers can make a combination configuration according to their own requirements or field conditions and select it in the box in front of the parameters.

V. Non-standard customization:

The above configuration is standard modular production hydraulic stations.In addition to this, non-standard customization, such as dual motor pump set system, proportional servo control system, etc. can be made according to the operating mechanism (purchasing equipment) working condition or customer special requirements.  The hydraulic station use  overall channel block technology with leakage being reduced, reasonable layout, compact structure, powerful, and reliable performance.