Drag line type electric loader

Abstract

The utility model discloses a wire dragging type electric loader, and belongs to the technical field of loaders. A tow line type electric loader comprises: a loader body; the power battery is fixedly connected in the loading machine body; the rectifying device is connected with the loader body through a quick plug; the power electronic device is fixedly connected in the loader body; the driving motor is fixedly connected into the loading machine body, and the driving motor is connected with the power electronic device; the working motor is fixedly connected in the loading machine body and is connected with the power electronic device; according to the electric loader, the internal charging and discharging mode of the loader body is optimized and changed, the electric loader can achieve infinite endurance within the limited working radius, meanwhile, the electric loader has transition and power-off endurance capacity, the working efficiency of the loader body is effectively improved, meanwhile, the electric loader reduces the charging and discharging frequency of a power battery, and the electric loader can be used for charging and discharging the power battery. And the capacity loss caused by charging and discharging of the battery is reduced, so that the capacity utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loaders, in particular to a tow-line type electric loader. Background Art

[0002] As the world pays more and more attention to environmental protection and energy efficiency, electric loaders, as a new type of loading equipment, are gradually replacing traditional fuel loaders due to their advantages such as zero emissions and high efficiency. The main working principle of electric loaders is to convert direct current into three-phase electricity through power electronics to drive the travel motor and hydraulic motor to complete various actions of the loader.

[0003] The electric loader was disclosed on 2013-08-07, with the publication number CN203113391U, and includes a bucket, a push shovel arm, a power wiring connection plate, a cab, a power room, an AC and DC motor, wheels and a body. The body is the main part, and the overall structure is an engineering vehicle chassis. The body is provided with wheels for grounding, one end of the body is provided with a push shovel arm, and a bucket is provided through the push shovel arm. The other end of the body is provided with a power room, and the power room is provided with an AC and DC motor. The cab is provided in the approximately middle position of the body, and the power wiring connection plate is provided at the upper end of the cab. The electric loader described in the utility model has a simple overall structure, is easy to operate and use, has good stability and high reliability. The electric loader described in the utility model uses an AC and DC motor as the power source, simplifies the self-setting form and internal structure of the loader, and increases the actual working capacity of push shovel and loading.

[0004] However, the above-mentioned electric loader still has certain shortcomings when it is used in operation. The above-mentioned loader electric loader usually uses a charging pile to convert three-phase electricity into direct current electricity and stores it in a power battery, and then converts the direct current electricity into three-phase electricity through an inverter to drive the motor to complete various actions of the loader. At the same time, part of the electricity is also stepped down into low-voltage electricity for powering low-voltage electrical devices. However, the power battery capacity of the existing electric loader is limited and cannot achieve long-term and efficient operation. At the same time, there is a certain loss in the power battery during charging and discharging, which may cause energy waste. Utility Model Content

[0005] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a tow-line electric loader.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tow-line electric loader, comprising:

[0008] Loader body;

[0009] A power battery, fixedly connected to the loader body;

[0010] The rectifier is connected to the loader body through a quick-connect plug;

[0011] A power electronic device fixedly connected to the loader body;

[0012] A drive motor is fixedly connected to the loader body, and the drive motor is connected to the power electronic device;

[0013] The working motor is fixedly connected in the loader body and is connected to the power electronic device.

[0014] Preferably, a driver's cabin is fixedly connected to the loader body, and a vehicle controller is arranged in the driver's cabin.

[0015] Furthermore, a starting power supply and a low-voltage domain controller are fixedly connected in the loader body, and the starting power supply and the low-voltage domain controller are connected.

[0016] Furthermore, a vehicle-mounted low-voltage electrical appliance is fixedly connected to the loader body, and the vehicle-mounted low-voltage electrical appliance is connected to the low-voltage domain controller.

[0017] Preferably, it also includes a vehicle network platform, which is arranged in the loader body and is connected to the vehicle controller.

[0018] Compared with the prior art, the utility model provides a tow-line electric loader, which has the following beneficial effects:

[0019] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model optimizes and changes the internal charging and discharging mode of the loader body, so that the electric loader can achieve unlimited endurance within a limited working radius, and has the ability to transfer and power off, which effectively improves the operating efficiency of the loader body. At the same time, the electric loader reduces the charging and discharging frequency of the power battery, reduces the energy loss caused by battery charging and discharging, and thus improves the capacity utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the device connection process in a tow-line electric loader proposed by the utility model;

[0021] Figure 2 The utility model is a schematic diagram of the connection structure of a tow-line electric loader and a power supply tower.

[0022] In the figure: 1. Cockpit; 2. Starting power supply; 3. Vehicle network platform; 4. Vehicle controller; 5. Low-voltage domain controller; 6. On-board low-voltage electrical appliances; 7. Power battery; 8. Rectifier; 9. Power electronic device; 10. Drive motor; 11. Working motor; 12. Power supply tower; 13. Loader body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1:

[0025] Reference Figure 1-Figure 2 , a tow-line electric loader, comprising

[0026] Loader body 13;

[0027] The power battery 7 is fixedly connected in the loader body 13;

[0028] The rectifier 8 is connected to the loader body 13 via a quick-connect plug;

[0029] The power electronic device 9 is fixedly connected in the loader body 13;

[0030] The drive motor 10 is fixedly connected to the loader body 13, and the drive motor 10 is connected to the power electronic device 9;

[0031] The working motor 11 is fixedly connected in the loader body 13 and is connected to the power electronic device 9 .

[0032] Reference Figure 1-Figure 2 The loader body 13 is connected to the external power supply tower 12 through the rectifier 8, and the power supply tower 12 is connected to the rectifier 8.

[0033] It should be noted that the rectifier 8 can use a high-frequency switching power supply to convert the national standard three-phase electricity into the direct current required by the high-voltage system of the electric loader body 13 with a conversion efficiency of more than 90%, and connect it to the loader body 13 through a quick-change plug.

[0034] It should also be noted that the power battery 7 is a small-capacity battery. By selecting and optimizing the parameters and design of the power battery 7, its energy storage capacity is reduced to only meet the needs of power-off endurance or small-range transfer to save battery costs.

[0035] At the same time, a power electronic architecture is adopted in which the rectifier 8 and the power battery 7 are connected in parallel for power supply; within the limited working radius of the electric loader body 13, the rectifier 8 provides DC high voltage power to the power electronic device 9 through the power supply tower 12; when the power electronic device 9 detects that the high-voltage power supply voltage is insufficient, the power battery 7 is awakened to supply power to the power electronic device 9; when the power battery 7 voltage is insufficient and the power electronic device 9 detects that the high-voltage power supply voltage is sufficient, the power battery 7 enters the charging mode.

[0036] The electric loader can achieve unlimited cruising within a limited working radius, and has the ability to transfer and power off, which effectively improves the operating efficiency of the loader body 13. At the same time, the electric loader reduces the charge and discharge frequency of the power battery 7, reduces the energy loss caused by the battery charging and discharging, and thus improves the energy utilization rate;

[0037] At the same time, by reducing the capacity of the power battery 7, the cost of the loader body 13 is saved, and the economic practicality of the electric loader is improved.

[0038] A driving cabin 1 is fixedly connected to the loader body 13 , and a vehicle controller 4 is arranged in the driving cabin 1 .

[0039] A starting power supply 2 and a low-voltage domain controller 5 are fixedly connected to the loader body 13 , and the starting power supply 2 and the low-voltage domain controller 5 are connected.

[0040] The loader body 13 is also fixedly connected with a vehicle-mounted low-voltage electrical appliance 6 , which is connected to the low-voltage domain controller 5 .

[0041] It also includes a vehicle network platform 3, which is arranged in the loader body 13 and is connected to the vehicle controller 4.

[0042] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A line-towed electric loader, characterized in that: include: Loader body (13); A power battery (7) is fixedly connected in the loader body (13); The rectifying device (8) is connected to the loader body (13) via a quick-connect plug; A power electronic device (9) is fixedly connected in the loader body (13); A drive motor (10) is fixedly connected in the loader body (13), and the drive motor (10) is connected to the power electronic device (9); The working motor (11) is fixedly connected in the loader body (13) and is connected to the power electronic device.

2. A line-towed electric loader according to claim 1, characterized in that: A driving cabin (1) is fixedly connected to the loader body (13), and a vehicle controller (4) is arranged in the driving cabin (1).

3. A tow-line electric loader according to claim 2, characterized in that: A starting power supply (2) and a low-voltage domain controller (5) are fixedly connected in the loader body (13), and the starting power supply (2) and the low-voltage domain controller (5) are connected.

4. A tow-line electric loader according to claim 3, characterized in that: The loader body (13) is also fixedly connected with a vehicle-mounted low-voltage electrical appliance (6), and the vehicle-mounted low-voltage electrical appliance (6) is connected to the low-voltage domain controller (5).

5. A line-towed electric loader according to claim 1, characterized in that: It also includes a vehicle network platform (3), which is arranged in the loader body (13) and is connected to the vehicle controller (4).

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