Mining coal mining mechanical mining loaders are mainly composed of three major institutions of driving, excavation, and transportation.Through the coordination and cooperation of each part, the actions prescribed by hydraulic, electrical execution components and mechanical transmission agencies are finally completed to complete each operation process.Let me introduce it in detail below!
Precautions for coal mining machinery
1. Users must be familiar with this manual, and strictly operate and maintain in accordance with this instructions.Do not follow the requirements of this instructions to perform illegal operations, use and maintenance, and cause damage or personnel damage. The user is responsible.
2. The car must have a special person to operate, and non -operators are not allowed to open or move.Digging should be landed at non -working hours, and it is strictly forbidden to park in the air.
3. Before the operation, check whether the three -phase power supply is balanced. The voltage of each phase should indicate normal (380V), and the lack of phase starting motor is strictly prohibited.
4. Before the operation, it must be operated by air load and no load. The operation can be performed when the oil temperature is not lower than 20 ° C.
5. The operator should remember the movement of each handle. To achieve the manipulation of the hand, the sight should be concentrated on the fight.When pulling the handle, the movement should be stable to avoid causing hydraulic impact, damaged components and structural parts.
6. During the operation or debugging, the station is strictly prohibited within the bucket and the scope is prohibited.If a failure or an abnormal noise occurs immediately, it should be stopped and cut off the total power.
7. It is strictly forbidden to adjust the pressure of the safety valve privately to avoid damaging the hydraulic element or affecting the performance. If it is privately adjusted to the work pressure, it is an illegal operation.
8. When manipulating the stagnation of the handle, you must not operate hard.
9. The hydraulic system should use the corresponding model of the hydraulic oil in different seasons; the hydraulic oil should be replaced regularly. The first 200 hours of replacement should be replaced.
10. The rear axle should replace gear oil on a regular basis. For the first 50 hours, it will be replaced every 500 hours.
11. Special attention: When the conveyor rack is raised, people must have reliable security support under the conveyor to prevent the transmitting rack from suddenly falling down.
12. Safety requirements for power supply: Power access should prevent damage to people.
13. Special attention: The state of the fixed position of the shaft sleeve between the transmission shaft between the rear axle and the reducer is needed to take off the connection shaft sleeve when the external force is dragged.The shaft sleeve is reset, and the screw is fixed tightly to fix it.
14. Portable methane alarm instruments should be used when using underground.
15. When working (walking) on ??the uphill (downhill), the shift must be carried out in a static state, and the tire (or front) pillow wood should be padded to prevent a safety accident.
Precautions for assembly of coal mining mechanical assembly
1. When assembling each connection bolt, you should check whether the anti -pine pads are complete and whether the degree of tightness meets the requirements.
2. The joint part of the hydraulic system must be wiped out, and no dust and impurities must be entered.At the same time, check whether the sealing ring is complete or damaged, and all pipelines should be rare and fixed according to the original location.
3. After the whole machine is installed, check the pipelines and auxiliary parts of each component, and whether the installation is correct and stable.
4. There must be a special person in the installation of electrical components.The diameter of the cable entering the wiring box should be consistent with the pore diameter of the rubber pad. Pressing the thread head should ensure that there is no gap between the rubber pads and the cable and the rubber pad and the wiring box, otherwise the explosion -barrier performance will be lost.
Overall structure and work principle, work performance overview
Mining coal mining mechanical mining loaders are mainly composed of three major institutions of driving, excavation, and transportation.Through the coordination and cooperation of each part, the actions prescribed by hydraulic, electrical execution components and mechanical transmission agencies are finally completed to complete each operation process.This machine combines hydraulic walking, excavation collection, transportation, and loading.Among them, the hydraulic walking function is to drive the front and rear wheels through the hydraulic motor, and the hydraulic motor has three properties: forward, backward, and automatic braking. The four -wheel drive has the characteristics of geographical power and strong driving force.Stretching the arm, loading, unloading performance, the large arm can rise, decrease, turn left and right, and the control of the excavation and collection is controlled by the all -hydraulic pressure. It is controlled by six operations. Each handle controls two actions, a total of twelve actions.
The transportation performance is completed by the conveyor system. The conveyor rack is controlled by the hydraulic cylinder. When the conveyor rack is reduced, the front wheels can be raised.Strong, at the same time, you can gather bulk materials and flat the venue.The transmission band width is 650mm, and the transmission speed is about 5m/s. The conveyor belt drives the drum by hydraulic motor to make the transmitter more stable and the service life is longer.The hydraulic system of the vehicle is used as a 15KW motor to drive the di -voltage high -voltage gear pump. The hydraulic oil enters the one -te -multi -road direction valve through the gear pump to achieve control of the hydraulic device by operating the handle.The vehicle electrical system uses a mineral explosion -type electromagnetic starter to control the control of the motor to ensure the safety of personal and equipment.The mobility source is an externally introduced construction frequency 660 (380) V three -phase AC power supply. The whole machine uses a 15kW motor, and the driver is driven by hydraulic pressure. It only needs one person in operation.

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