Main generator working timing device and method for electric wheel mine truck

Abstract

The invention discloses a main generator work timing device for an electric wheel mine truck, and the main generator work timing device comprises a data collection and calculation controller, a timing module, a data collection and calculation controller, a main generator rotation speed correlation signal collection module, a main generator rotation speed correlation signal collection module and a main generator rotation speed correlation signal collection module, the correlation signals comprise a gear signal, a rotating speed signal of the main generator, a direct-current bus voltage signal and a direct-current bus current signal, the working state of the main generator is judged according to the correlation signals, and when the main generator is in the working state, a timing enabling instruction is output; and the timing module receives the timing enabling instruction and is used for accumulating the working time of the main generator and updating the working time to the CAN bus. The invention further discloses a main generator working timing method for the electric wheel mine truck. The working time of the main generator is accumulated according to the working state, the actual working time of the main generator is accurately judged, and effective maintenance of the main generator is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of electric mining trucks, and in particular relates to a main generator operation timing device and method for electric mining trucks. Background Art

[0002] The main generator of an electric wheel mining truck is one of the core components of the equipment. Timely maintenance can effectively extend its service life. The formulation of the maintenance plan mainly depends on the equipment usage time. In general, the usage time of the main generator is replaced by the working hours of the whole vehicle, but the operating status of the whole vehicle and the working status of the main generator are not exactly the same. Therefore, there is a big error in determining the life of the main generator by the working hours of the whole vehicle. Summary of the invention

[0003] The purpose of the present invention is to provide a main generator working timing device and method for an electric wheel mining truck, which can accumulate the working time of the main generator through the working status, accurately judge the actual working time of the main generator, and facilitate the effective maintenance of the main generator.

[0004] To achieve the above purpose, the technical solution used in the present invention is:

[0005] The main generator working timing device for electric wheel mining trucks includes: a data acquisition and calculation controller, a timing module, wherein

[0006] The data acquisition and calculation controller collects the related signals of the main generator speed through the CAN bus. The related signals include: gear position signal, main generator speed signal, DC bus voltage signal and DC bus current signal. The working state of the main generator is judged according to the related signals, and the timing enable instruction is output when the main generator is in the working state.

[0007] The timing module receives the timing enable instruction, is used to accumulate the working time of the main generator, and updates the working time to the CAN bus.

[0008] Furthermore, a sensor installed on the vehicle chassis obtains a gear signal, and the sensor sends the gear signal to the CAN bus at a regular time; the speed sensor is fixed at the bearing of the main generator, and the speed sensor sends the detected speed signal of the main generator to the CAN bus at a regular time; the DC bus is provided with a voltage and ammeter, and the voltage and ammeter sends the DC bus voltage signal and the DC bus current signal to the CAN bus at a regular time; the data acquisition and calculation controller obtains the gear signal, speed signal, bus voltage signal, and DC bus current signal from the CAN bus according to the data acquisition cycle.

[0009] A method for timing the operation of a main generator for an electric wheel mining truck, comprising:

[0010] The data acquisition and calculation controller collects the related signal of the main generator speed, determines the working state of the main generator according to the related signal, and outputs the timing enable instruction when the main generator is in the working state;

[0011] The timing module receives the timing enable instruction, accumulates the working time of the main generator, and updates the working time of the main generator to the CAN bus.

[0012] Preferably, the data acquisition and calculation controller determines the actual working state of the current main generator through associated signal logic, and outputs a timing enable to the timing module if the main generator is in operation.

[0013] Preferably, the data acquisition and calculation controller determines whether the speed is greater than or equal to the speed setting value and whether the gear is not neutral. If all the conditions are met at the same time, it continues to check whether the DC bus current is greater than the set current value and whether the bus voltage is greater than the set voltage value. If all the conditions are met at the same time, the main generator working time is accumulated within the data acquisition cycle. If the conditions are not met, the main generator working time is not accumulated in this signal cycle; the data acquisition and calculation controller controls the output of the timing enable of the timing module according to the working status of the main generator.

[0014] Preferably, the speed setting value is 500 rpm, the bus current setting value is 900A, and the bus voltage setting value is 1000V.

[0015] Preferably, the gear position signal is obtained from a sensor on the vehicle chassis, and the sensor sends the gear position signal to the CAN bus at a regular interval; the speed sensor is fixed at the bearing of the main generator, and the speed sensor sends the detected speed signal of the main generator to the CAN bus at a regular interval; the DC bus is provided with a voltage and ammeter, and the voltage and ammeter sends the DC bus voltage signal and the DC bus current signal to the CAN bus at a regular interval; the data acquisition and calculation controller obtains the gear position signal, speed signal, bus voltage signal, and DC bus current signal from the CAN bus according to the data acquisition cycle.

[0016] The technical effects of the present invention include:

[0017] The present invention accumulates the working time of the main generator through the working status, can accurately judge the actual working time of the main generator, and then formulate a reasonable and scientific main generator maintenance cycle and maintenance plan, which is conducive to the effective maintenance of the main generator, avoids economic losses caused by ineffective maintenance, and improves the working efficiency and output of the main generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural principle diagram of the main generator working timing device in the present invention;

[0019] Figure 2It is a flow chart of the main generator working timing method in the present invention. DETAILED DESCRIPTION

[0020] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0021] like Figure 1 The figure shows the structural principle diagram of the main generator working timing device for the electric wheel mining truck in the present invention.

[0022] The main generator working timing device used for an electric wheel mining truck comprises: a data acquisition calculation controller and a timing module.

[0023] The data acquisition and calculation controller collects the related signals of the main generator speed through the CAN bus (Controller Area Network bus). The related signals include: gear position signal, main generator speed signal, DC bus voltage signal and DC bus current signal. The working state of the main generator is judged according to the related signals, and the timing enable instruction is output when the main generator is in the working state.

[0024] The timing module receives the timing enable instruction, is used to accumulate the working time of the main generator, and updates the working time to the CAN bus.

[0025] like Figure 2 Shown is a flow chart of the main generator operation timing method for an electric wheel mining truck in the present invention.

[0026] The main generator working timing method for the electric wheel mining truck has the following specific steps:

[0027] Step 1: The data acquisition and calculation controller collects the related signal of the main generator speed, determines the working state of the main generator according to the related signal, and outputs the timing enable instruction when the main generator is in the working state;

[0028] The gear position signal is obtained from the sensor on the chassis of the vehicle body, and the sensor sends the gear position signal to the CAN bus at a fixed time; the speed sensor is fixed at the bearing of the main generator, and the speed sensor sends the detected speed signal of the main generator to the CAN bus at a fixed time; the DC bus is equipped with a voltage and current meter, and the voltage and current meter sends the DC bus voltage signal and DC bus current signal to the CAN bus at a fixed time. The data acquisition calculation controller obtains the gear position signal, speed signal, bus voltage signal, and DC bus current signal from the CAN bus according to the data acquisition cycle.

[0029] The data acquisition and calculation controller determines the actual working state of the current main generator through the associated signal logic, and outputs the timing enable to the timing module if the main generator is in operation.

[0030] The data acquisition and calculation controller first determines whether the speed is greater than or equal to the speed setting value (500 rpm) and whether the gear is not in neutral. If the conditions are met at the same time, it continues to detect and check the DC bus current and DC bus voltage. If the conditions are met, it continues to check whether the DC bus current is greater than the current setting value (900A) and whether the bus voltage is greater than the voltage setting value (1000V). If the conditions are met at the same time, the main generator working time is accumulated within the data acquisition cycle Δt; if the conditions are not met at the same time, the main generator working time is not accumulated in this signal cycle; the data acquisition and calculation controller controls the timing enable of the timing module according to the working status of the main generator.

[0031] Step 2: The timing module receives the timing enable instruction, accumulates the working time of the main generator, and updates the working time of the main generator to the CAN bus.

[0032] The terms used in the present invention are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in various 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 aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A timing device for the main generator of an electric wheel mining truck, characterized in that: include: Data acquisition calculation controller, timing module, including The data acquisition and calculation controller collects the related signals of the main generator speed through the CAN bus. The related signals include: gear position signal, main generator speed signal, DC bus voltage signal and DC bus current signal. The working state of the main generator is judged according to the related signals, and the timing enable instruction is output when the main generator is in the working state. The timing module receives the timing enable instruction, is used to accumulate the working time of the main generator, and updates the working time to the CAN bus.

2. The main generator operation timing device for an electric wheel mining truck according to claim 1, characterized in that: The sensor installed on the chassis of the vehicle body obtains the gear signal, and the sensor sends the gear signal to the CAN bus at a regular time; the speed sensor is fixed on the bearing of the main generator, and the speed sensor sends the detected speed signal of the main generator to the CAN bus at a regular time; the DC bus is provided with a voltage and ammeter, and the voltage and ammeter sends the DC bus voltage signal and the DC bus current signal to the CAN bus at a regular time; the data acquisition calculation controller obtains the gear signal, speed signal, bus voltage signal, and DC bus current signal from the CAN bus according to the data acquisition cycle.

3. The main generator working timing method for an electric wheel mining truck of the main generator working timing device for an electric wheel mining truck according to claim 1, characterized in that: include: The data acquisition and calculation controller collects the related signal of the main generator speed, determines the working state of the main generator according to the related signal, and outputs the timing enable instruction when the main generator is in the working state; The timing module receives the timing enable instruction, accumulates the working time of the main generator, and updates the working time of the main generator to the CAN bus.

4. The main generator operation timing method for an electric wheel mining truck according to claim 3, characterized in that: The data acquisition and calculation controller determines the actual working state of the current main generator through the associated signal logic, and outputs the timing enable to the timing module if the main generator is in operation.

5. The main generator operation timing method for an electric wheel mining truck according to claim 3, characterized in that: The data acquisition calculation controller determines whether the speed is greater than or equal to the speed setting value and whether the gear is not neutral. If the conditions are met at the same time, it continues to check whether the DC bus current is greater than the set current value and whether the bus voltage is greater than the set voltage value. If the conditions are met at the same time, the main generator working time is accumulated within the data acquisition cycle. If the conditions are not met, the main generator working time is not accumulated in this signal cycle; The data acquisition and calculation controller controls and outputs the timing enable of the timing module according to the working state of the main generator.

6. The main generator operation timing method for an electric wheel mining truck according to claim 5, characterized in that: The speed setting value is 500 rpm, the bus current setting value is 900A, and the bus voltage setting value is 1000V.

7. The main generator operation timing method for an electric wheel mining truck according to claim 3, characterized in that: The gear position signal is obtained from the sensor on the chassis of the vehicle body, and the sensor sends the gear position signal to the CAN bus at a regular time; the speed sensor is fixed at the bearing of the main generator, and the speed sensor sends the detected speed signal of the main generator to the CAN bus at a regular time; the DC bus is provided with a voltage and ammeter, and the voltage and ammeter sends the DC bus voltage signal and the DC bus current signal to the CAN bus at a regular time; the data acquisition calculation controller obtains the gear position signal, speed signal, bus voltage signal, and DC bus current signal from the CAN bus according to the data acquisition cycle.

Images