Electric control system of tow line loader

Abstract

The utility model discloses an electric control system of a tow line loader, and belongs to the technical field of electric loaders. A power supply interface assembly; a rectifying assembly; a power distribution and electric control assembly, a gearbox and drive axle assembly and a pump and hydraulic assembly; a battery assembly; a driving motor assembly; a working motor assembly; according to the utility model, 24-hour uninterrupted operation can be realized, the tow line loader can be directly connected with the mains supply during operation, complete dependence on the electric quantity of a battery is eliminated, 24-hour continuous operation can be realized, the working efficiency is greatly improved, and the customer requirements with strict requirements on the operation time are met. And flexible transition operation: when a working site is changed, the loader can be powered by a battery assembly, transition operation without relying on the mains supply is realized, the loader can be quickly transferred among different sites due to the flexibility, time loss caused by site transition is reduced, and the use convenience and the operation adaptability of the equipment are improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric loader technology, specifically, it relates to an electronic control system for a cable loader. Background Technology

[0002] The mainstream pure electric loader technology in the current technology has many limitations: on the one hand, in order to meet the long-term and high-intensity operation requirements of the loader, the power battery is equipped with a large capacity, which makes the battery cost high, and thus the overall machine cost is relatively high; on the other hand, when the battery is depleted, it needs to be charged with a charging pile, which takes a long time and the loader cannot operate normally during the charging period, making it difficult to meet the needs of some customers for 24-hour uninterrupted work and affecting loading efficiency. Utility Model Content

[0003] The problem to be solved

[0004] In view of the problems raised in the prior art, this utility model provides an electrical control system for a wire loader.

[0005] Technical solution

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A wire loader electronic control system, comprising:

[0008] Power supply components: used to connect to mains power and provide power;

[0009] Power supply interface assembly: Connected to the power supply assembly via a high-voltage wiring harness, used to receive power from the power supply assembly;

[0010] Rectifier component: connected to the power supply interface component, and the rectifier component is used to convert the high voltage output voltage of the power supply interface component into a controllable rectified voltage;

[0011] Power distribution and control components, gearbox and drive axle components, and pumps and hydraulic components;

[0012] The power distribution and control components are connected to the gearbox and drive axle components, and the power distribution and control components are connected to the rectifier components;

[0013] Battery assembly: Connected between the rectifier assembly and the power distribution and electronic control assembly, the battery assembly is used to provide power to the loader when the cable is in operation and to replenish the battery when the battery power is low;

[0014] Drive motor assembly: connected to the power distribution and electronic control assembly, and the drive motor assembly is used to drive the vehicle forward and backward through the gearbox and drive axle assembly;

[0015] Working motor assembly: connected to the power distribution and electronic control assembly, and the working electrode assembly is used to realize loading operations through pumps and hydraulic components;

[0016] The working motor assembly is connected to the pump and hydraulic assembly.

[0017] Preferably, the power distribution and control components include a power distribution component and an electronic control component. The power distribution component is used to supply power to the vehicle's air conditioning, heating PTC, and battery water heating PTC. The electronic control component is used to control the speed and power of the drive motor component and the working motor component.

[0018] Preferably, the battery assembly includes a battery, a high-voltage relay, and a control component.

[0019] Preferably, when the SOC of the battery module is lower than the preset value SOC1, the rectifier component outputs according to the current voltage and maximum allowable charging current of the battery module. The output current of the rectifier component is the sum of the allowable charging current of the battery and the actual operating current of the electronic control component, so as to realize that the cable loader charges the battery synchronously when it is working.

[0020] Furthermore, when the SOC of the battery module is higher than the preset value SOC1, the battery module cuts off the internal high-voltage relay, and the rectifier module only outputs current to the electronic control module, stopping the charging of the battery module.

[0021] Furthermore, when moving between work sites, the high-voltage power supply harness on the power supply interface assembly is disconnected, and the loader is powered by the battery assembly. The electronic control assembly controls the drive motor assembly and the work motor assembly, and the loader moves between work sites.

[0022] Beneficial effects

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) This utility model can achieve 24-hour uninterrupted operation: the tow cable loader can be directly connected to the mains power when working, getting rid of the complete dependence on battery power, and can achieve 24-hour continuous operation, which greatly improves work efficiency and meets the needs of customers with strict requirements for working time.

[0025] Reduced overall machine cost: Compared with traditional pure electric loaders, this utility model uses a small-capacity battery in conjunction with a mains power cord, which reduces the need for large-capacity power batteries and lowers battery costs. At the same time, it eliminates the need for high-power charging piles, further reducing the overall cost of the equipment and improving the product's market competitiveness.

[0026] Flexible relocation: When changing work sites, the loader can rely on battery power to achieve relocation operations without relying on mains power. This flexibility allows the loader to move quickly between different sites, reducing the time loss caused by site changes and improving the ease of use and operational adaptability of the equipment.

[0027] Extending battery life: By precisely controlling the battery charging and discharging process, overcharging and over-discharging are avoided. The battery is replenished in time when the power is low and charging is stopped when the power is sufficient, which effectively extends the battery life and reduces the maintenance cost of the equipment and the frequency of battery replacement.

[0028] Energy-saving and environmentally friendly: Prioritizing the use of mains electricity as the primary power source reduces the consumption of traditional fuel oil and lowers exhaust emissions, complying with environmental protection policy requirements. At the same time, reasonable power distribution and motor control strategies improve energy utilization efficiency, further demonstrating the advantages of energy saving and environmental protection. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or examples of this application, the accompanying drawings used in the embodiments or examples will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other drawings can be obtained according to these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the system components of this utility model. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments. Generally, the components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] Example 1

[0034] like Figure 1 As shown, an electronic control system for a cable loader includes:

[0035] Power supply components: Professional power supply equipment adapted to 380V mains power is selected and connected to the power supply interface components through high-voltage cables that meet safety standards; the power supply components have overvoltage and undervoltage protection functions, which can effectively prevent damage to the system caused by mains voltage fluctuations; when the mains voltage is higher than 400V or lower than 360V, the power supply components automatically cut off the output to protect the safety of downstream components.

[0036] Power supply interface assembly: It adopts a robust and durable high-voltage connector to ensure a stable and reliable connection with the power supply components; the interface integrates current detection and short-circuit protection circuits to monitor the input current in real time. Once a short circuit is detected, the circuit is quickly cut off to prevent the fault from escalating; when an accidental short circuit causes the current to become too large instantaneously, the short-circuit protection circuit can react within milliseconds and cut off the power supply.

[0037] Rectifier Component: Utilizing advanced thyristor rectification technology, the high-voltage AC power output from the power supply interface component is converted into a controllable DC voltage. When the SOC of the battery component is lower than the preset value SOC1 (e.g., set to 30%), the rectifier component receives the current voltage and maximum allowable charging current signal from the battery component. Assuming the allowable charging current of the battery is 60A and the actual operating current of the electronic control component is 40A, the rectifier component outputs 100A current, enabling the operation of the cable loader and battery charging to proceed synchronously. When the SOC of the battery component is higher than the preset value SOC1, the battery component controls the internal high-voltage relay to cut off the charging circuit. At this time, the rectifier component only outputs the current required for operation to the electronic control component.

[0038] Power distribution and control components: The power distribution components use multiple relays and fuses to rationally allocate power to equipment such as the vehicle's air conditioning, heating PTC, and battery hydrothermal PTC. For example, in cold weather, the power distribution components prioritize the power supply to the heating PTC and battery hydrothermal PTC to ensure normal operation of the equipment.

[0039] The electronic control unit is based on a high-performance microprocessor and communicates with the drive motor assembly and the work motor assembly via a CAN bus. When the loader is performing loading operations, the electronic control unit adjusts the speed and power of the work motor assembly in real time according to the working conditions; during driving, it precisely controls the speed of the drive motor assembly to achieve smooth forward and reverse movement of the vehicle.

[0040] Transmission and drive axle assembly: The transmission adopts a planetary gear structure with multiple transmission ratios, which can automatically switch the appropriate transmission ratio according to the output torque and speed of the drive motor assembly; the drive axle efficiently transmits the power output by the transmission to the wheels to drive the vehicle.

[0041] For example, when climbing hills under heavy load, the transmission switches to a low-speed, high-torque gear ratio to ensure the vehicle has sufficient power; when driving on flat roads, it switches to a high-speed gear ratio to improve driving speed and efficiency.

[0042] Pumps and hydraulic components: The working motor assembly drives the hydraulic pump to operate, and the hydraulic pump pressurizes the hydraulic oil and delivers it to various hydraulic actuators, such as hydraulic cylinders and hydraulic motors; during loading operations, the hydraulic cylinders are controlled to realize the lifting and tilting of the bucket; the hydraulic motors are controlled to drive the conveyor belt and other devices to complete the loading, unloading and conveying of materials.

[0043] For example, when loading and unloading sand and gravel, the hydraulic system is controlled to enable the bucket to accurately grab and unload materials.

[0044] Battery Module: Employs lithium iron phosphate battery packs, which offer advantages such as high energy density and long lifespan. The high-voltage relay and control components within the battery module manage the charging and discharging process. When the battery SOC falls below a preset value (SOC1), the control component sends a charging request and relevant parameters to the rectifier module. When the battery SOC exceeds the preset value (SOC1), the control component controls the high-voltage relay to cut off the charging circuit, protecting the battery. During relocation, the battery module provides power to the loader, ensuring the equipment can move flexibly between different work sites.

[0045] Both the drive motor assembly and the work motor assembly utilize permanent magnet synchronous motors, characterized by high efficiency and high power density. The drive motor assembly drives the entire vehicle through the gearbox and drive axle assembly, while the work motor assembly performs loading operations through pumps and hydraulic components. Under different operating scenarios, the electronic control assembly precisely controls the motor speed and power according to actual needs, improving operating efficiency and energy utilization.

[0046] For example, reduce motor power to decrease energy consumption during light-load operations, and increase motor power to ensure smooth operation during heavy-load operations.

[0047] This embodiment of a control method for a cable loader's electronic control system includes the following steps.

[0048] S1. When the SOC of the battery pack is lower than the preset value SOC1, the battery pack outputs the current voltage and the maximum allowable charging current. The rectifier outputs according to the sum of the allowable charging current of the battery pack and the actual operating current of the electronic control component, so that the cable loader can charge the battery pack at the same time while working.

[0049] S2. When the SOC of the battery pack is higher than the preset value SOC1, the battery pack cuts off the internal high voltage relay, the rectifier only outputs current to the electronic control system, and stops charging the battery.

[0050] S3. When moving between work sites, disconnect the high-voltage power supply harness of the power supply interface component. The loader will then be powered by the battery component and controlled by the electronic control component to drive the motor component and work motor component, thus enabling the loader to move between different work sites.

[0051] The electronic control system described in this application has the following beneficial effects during actual operation and use:

[0052] Capable of 24-hour uninterrupted operation: The cordless loader can be directly connected to the mains power supply during operation, eliminating complete dependence on battery power and enabling continuous operation for 24 hours, which greatly improves work efficiency and meets the needs of customers with strict requirements for working time.

[0053] Reduced overall machine cost: Compared with traditional pure electric loaders, this utility model uses a small-capacity battery in conjunction with a mains power cord, which reduces the need for large-capacity power batteries and lowers battery costs. At the same time, it eliminates the need for high-power charging piles, further reducing the overall cost of the equipment and improving the product's market competitiveness.

[0054] Flexible relocation: When changing work sites, the loader can rely on battery power to achieve relocation operations without relying on mains power. This flexibility allows the loader to move quickly between different sites, reducing the time loss caused by site changes and improving the ease of use and operational adaptability of the equipment.

[0055] Extending battery life: By precisely controlling the battery charging and discharging process, overcharging and over-discharging are avoided. The battery is replenished in time when the power is low and charging is stopped when the power is sufficient, which effectively extends the battery life and reduces the maintenance cost of the equipment and the frequency of battery replacement.

[0056] Energy-saving and environmentally friendly: Prioritizing the use of mains electricity as the primary power source reduces the consumption of traditional fuel oil and lowers exhaust emissions, complying with environmental protection policy requirements. At the same time, reasonable power distribution and motor control strategies improve energy utilization efficiency, further demonstrating the advantages of energy saving and environmental protection.

[0057] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. An electronic control system for a dragline loader, characterized by, The utility model relates to a kind of trailer loader, including: Power supply assembly: for connecting mains and providing power supply; Power supply interface assembly: connected with power supply assembly through high-voltage cable, for receiving power from power supply assembly; Rectifier assembly: connected with the power supply interface assembly, and the rectifier assembly is used to convert the output end high-voltage voltage of power supply interface assembly into controllable rectified voltage; Power distribution and electronic control assembly, gearbox and drive axle assembly and pump and hydraulic assembly; The power distribution and electronic control assembly is connected with the gearbox and drive axle assembly, and the power distribution and electronic control assembly is connected with the rectifier assembly; Battery assembly: connected between the rectifier assembly and power distribution and electronic control assembly, the battery assembly is used to provide power for loader when trailing operation, and recharging when battery power is low; Driving motor assembly: connected with the power distribution and electronic control assembly, and the driving motor assembly is used to drive the whole vehicle forward and backward through gearbox and drive axle assembly; Working motor assembly: connected with the power distribution and electronic control assembly, and the working motor assembly is used to realize loading operation through pump and hydraulic assembly; The working motor assembly is connected with the pump and hydraulic assembly.

2. An electric control system for a dragline loader as claimed in claim 1 wherein: The power distribution and electronic control assembly includes power distribution assembly and electronic control assembly, the power distribution assembly is used to supply power for vehicle air conditioner, heating PTC, battery water-heat PTC, and the electronic control assembly is used to control the speed and power of driving motor assembly and working motor assembly.

3. An electric control system for a dragline loader as claimed in claim 1 wherein: The battery assembly includes battery, high-voltage relay and control assembly.

4. An electric control system for a dragline loader as defined in claim 1, characterized by: When the SOC of battery assembly is lower than preset value SOC1, the rectifier assembly outputs according to the current voltage and maximum allowable charging current emitted by battery assembly, and the output current of rectifier assembly is the sum of battery allowable charging current and actual working current of electronic control assembly, to realize that trailer loader charges battery synchronously when working.

5. An electric control system for a dragline loader as claimed in claim 4 wherein: When the SOC of battery assembly is higher than preset value SOC1, the battery assembly cuts off internal high-voltage relay, and the rectifier assembly only outputs current to electronic control assembly, to stop charging battery assembly.

6. An electric control system for a dragline loader as defined in claim 1, wherein: When turning, disconnect the power supply high-voltage cable on power supply interface assembly, and the loader is powered by battery assembly, the electronic control assembly controls driving motor assembly and working motor assembly, and the loader turns in each working site.

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