Water pump driving system of electric transmission mine watering cart

Abstract

The utility model discloses a water pump driving system of an electric transmission mine watering cart, which is characterized in that a whole-cart high-voltage power supply is connected with a power supply input end of a controller through a cable and is used for outputting a high-voltage alternating-current power supply; the controller is connected with the motor through a cable and used for driving the motor to operate and controlling the rotating speed of the motor. A rotating shaft of the motor is connected with a rotating shaft of the water pump through a transmission shaft; the water pump is connected with the nozzle and the water tank through pipelines and used for conveying water in the water tank to the nozzle; the nozzle is used for spraying water to a road surface; the water tank is used for storing water. The rotation speed of the water pump is stable and controllable, rotation speed changes of an engine are prevented from affecting work of the water pump, the efficiency of the watering cart is improved, and meanwhile the dust environment is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of electric drive mine sprinkler trucks, and particularly relates to a water pump drive system for an electric drive mine sprinkler truck. Background Art

[0002] Electric drive mine sprinkler trucks belong to off-road sprinkler trucks, which are mainly used for sprinkling dust and fire fighting in large open-pit mines. Electric drive mine sprinkler trucks mainly consist of a vehicle frame, an engine, a generator, wheel motors, a cab assembly, a water tank, a waterway system, etc. Among them, the waterway system is an important part of the electric wheel mine sprinkler truck.

[0003] At present, the waterway system of electric drive mine sprinkler trucks generally consists of a hydraulic pump, a hydraulic motor, a water pump, pipelines, sprinkler heads, etc. Driven by the hydraulic pump, the hydraulic motor provides power for the water pump. The water pump sucks water from the water tank and sprays water through the sprinkler heads. Since the power of the hydraulic pump comes from the engine, and the engine speed is related to the hydraulic pump speed and the throttle, the change of the engine speed will directly cause the speeds of the hydraulic pump, the hydraulic motor and the water pump, thus affecting the sprinkling effect. The mine roads are rough, and there are often continuous downhill road conditions. When the sprinkler truck goes downhill continuously, the engine speed is low, the sprinkling effect is poor, and it cannot play a good role in dust reduction. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a water pump drive system for an electric drive mine sprinkler truck, which can realize stable and controllable water pump speed, avoid the influence of engine speed change on the water pump operation, improve the efficiency of the sprinkler truck, and effectively improve the dust environment at the same time.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The water pump drive system for an electric drive mine sprinkler truck includes:

[0007] A vehicle-mounted high-voltage power supply, which is connected to the power input end of the controller through a cable and is used to output high-voltage alternating current power;

[0008] A controller, which is connected to the motor through a cable and is used to drive the motor to operate and control the motor speed;

[0009] A motor, which is used to drive the water pump to rotate, and the rotating shaft of the motor is connected to the rotating shaft of the water pump through a transmission shaft;

[0010] A water pump, which is connected to the sprinkler head and the water tank through pipelines respectively and is used to transport the water in the water tank to the sprinkler head;

[0011] A sprinkler head, which is used to spray water onto the road surface;

[0012] A water tank, which is used to store water.

[0013] Furthermore, the vehicle's high-voltage power supply, controller, motor, water pump, and water tank are fixed on the chassis of the electric-drive mining truck.

[0014] Furthermore, the vehicle cab is equipped with an operation screen, and the signal transmission port of the controller is connected to the operation screen through a signal line.

[0015] Furthermore, the water pump is a centrifugal water pump. Water is pressed into the pipeline through the high-speed rotating impeller, providing a stable power source for the pipeline; the controller transforms and rectifies the high-voltage alternating current and outputs alternating current with a set frequency to supply power to the motor.

[0016] Furthermore, the controller uses a motor control unit to control the speed of the motor.

[0017] The technical effects of the present utility model include:

[0018] 1. By changing the power source of the water pump and adopting the form of driving the water pump with a motor, the present utility model provides a stable rotational speed for the water pump, ensuring the stable rotational speed of the water pump, ensuring stable water pressure, making the spraying during the sprinkling process of the water truck more stable, and having a higher dust reduction efficiency.

[0019] It avoids the influence of the water pump on the engine speed in the traditional sprinkler truck, avoids unstable water pressure, can effectively solve the problem of low sprinkling efficiency, improves the sprinkling efficiency, and effectively improves the dust environment.

[0020] 2. The present utility model only needs to add a motor controller and a motor to replace the original hydraulic pump, hydraulic motor, etc., simplifying the existing control methods, pipelines, etc., which is simple and easy to implement. Description of the Drawings

[0021] Figure 1 It is the structural schematic diagram of the water pump drive system of the electric-drive mining sprinkler truck in the present utility model. Detailed Embodiments

[0022] The following description fully shows the specific implementation schemes of the present utility model, enabling those skilled in the art to practice and reproduce.

[0023] As Figure 1 shown, it is the structural schematic diagram of the water pump drive system of the electric-drive mining sprinkler truck in the present utility model.

[0024] The water pump drive system of the electric-drive mining sprinkler truck includes: the vehicle's high-voltage power supply 1, controller 2, motor 3, water pump 4, sprinkler head 5, and water tank 6. The vehicle's high-voltage power supply 1, controller 2, motor 3, water pump 4, and water tank 6 are fixed on the chassis of the electric-drive mining truck, and the water pump 4 is connected to the sprinkler head 5 and water tank 6 through pipelines respectively.

[0025] The vehicle's high-voltage power supply 1 is connected to the power input end of the controller 2 through a cable and is used to output high-voltage alternating current power;

[0026] A controller 2, connected to a motor 3 via a cable, is used to drive the motor 3 to operate and control the rotational speed of the motor 3;

[0027] The controller 2 transforms and rectifies high-voltage alternating current, outputs alternating current with a set frequency, and supplies power to the motor 3.

[0028] If the electric drive mine sprinkler truck uses an electric vehicle, the controller 2 uses a motor control unit (MCU), which is located between the vehicle's high-voltage power supply 1 and the motor 3, to control the rotational speed of the motor 3.

[0029] The controller 2 can also separately use a motor controller.

[0030] In this preferred embodiment, the signal transmission port of the controller 2 is connected to an operation screen 7 via a signal line.

[0031] A motor 3, used to drive a water pump 4 to rotate, and the rotating shaft of the motor 4 is connected to the rotating shaft of the water pump 5 via a transmission shaft;

[0032] A water pump 4, which is respectively connected to a sprinkler head 5 and a water tank 6 via pipelines, is used to transport the water in the water tank 6 to the sprinkler head 5; the water pump 4 is a centrifugal water pump, and the water is pressed into the pipeline by a high-speed rotating impeller, providing a stable power source for the pipeline;

[0033] A sprinkler head 5, used to spray water onto the road surface; the sprinkler head 5 ensures that a certain shape is formed when high-pressure water is sprayed, improving the spraying efficiency.

[0034] A water tank 6, as a water storage device, is used to store water.

[0035] Since the water pump 4 is driven by the motor 3, the motor 3 can set a fixed rotational speed through the operation screen 7, making the rotational speed of the water pump 4 stable and the water pressure stable at the same time.

[0036] A method for driving a water pump of an electric drive mine sprinkler truck includes:

[0037] Step 1: The vehicle's high-voltage power supply 1 outputs high-voltage alternating current, and the controller 2 transforms and rectifies the high-voltage alternating current and then outputs it to supply power to the motor 3;

[0038] Step 2: The water pump 4 generates water pressure under the drive of the motor 3, and the water in the water tank 6 is pressurized by the water pump 4 and then sprayed through the sprinkler head 5.

[0039] An operation screen 7 is provided in the vehicle cab, and the driver can adjust the rotational speed of the motor 3 through the operation screen 7 for human-machine interaction, control the rotational speed of the motor 3, and the operation screen 7 displays relevant parameters such as the motor rotational speed and water pressure.

[0040] The terminology used in this utility model is illustrative and exemplary, rather than restrictive. Since this utility model can be embodied in many forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An electric drive water pump drive system for a mine sprinkler truck, characterized in that, Including: A vehicle high-voltage power supply, connected to the power input terminal of the controller through a cable, for outputting high-voltage alternating current power; A controller, connected to the motor through a cable, for driving the motor to operate and controlling the motor speed; A motor, for driving the water pump to rotate, and the rotating shaft of the motor is connected to the rotating shaft of the water pump through a transmission shaft; A water pump, connected to the sprinkler head and the water tank through pipelines respectively, for transporting the water in the water tank to the sprinkler head; A sprinkler head, for spraying water onto the road surface; A water tank, for storing water.

2. The electric drive water sprinkler pump drive system for mining use according to claim 1, characterized in that, The vehicle high-voltage power supply, controller, motor, water pump, and water tank are fixed on the chassis of the electric drive mining truck.

3. The electric drive water sprinkler pump drive system for mining use according to claim 1, characterized in that, The vehicle cab is provided with an operation screen, and the signal transmission port of the controller is connected to the operation screen through a signal line.

4. The electric drive water sprinkler pump drive system for mining use according to claim 1, characterized in that, The water pump adopts a centrifugal water pump, and the water is pressed into the pipeline through a high-speed rotating impeller to provide a stable power source for the pipeline; the controller transforms and rectifies the high-voltage alternating current and outputs alternating current with a set frequency to supply power to the motor.

5. The electric drive water sprinkler pump drive system for mining use according to claim 1, wherein The controller adopts a motor control unit to control the speed of the motor.

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