CN217710940U

CN217710940U - Power assembly device for pure electric loader

Info

Publication number: CN217710940U
Application number: CN202221502014.XU
Authority: CN
Inventors: 陈志杰; 陈海荣; 杨红杰; 周杨
Original assignee: Kamit Taizhou New Energy Intelligent Equipment Co ltd
Current assignee: Kamit Taizhou New Energy Intelligent Equipment Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-11-01
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a pure electric power assembly device for loader, including power battery, high-pressure box, BMS controller, the controller that unifies more, the walking is automatically controlled, walking motor, hydraulic pressure series pump and gearbox for the pump. A double-motor driving mode is adopted, one motor provides walking power, and the other motor provides working power. The double-motor drive has obvious advantages in energy conservation, the loader has very frequent braking actions in work, energy recovery can be carried out, and in addition, the working motor can be automatically closed in a waiting state so as to achieve the effect of saving energy consumption. On the premise of reducing energy consumption, the same working time is achieved, the capacity of the power battery can be reduced, the servicing quality of the whole vehicle is reduced, and the cost of the whole vehicle is reduced.

Description

Power assembly device for pure electric loader

Technical Field

The utility model relates to an electric loader technical field specifically is a power assembly device for electricelectric motor loader.

Background

The development of new energy engineering machinery in China is an important measure for reducing fuel consumption, relieving the contradiction between fuel supply and demand, reducing tail gas emission, improving atmospheric environment, promoting the technical progress of engineering machinery and optimizing and upgrading, and is also a need for the cross-over development of engineering machinery industry and the promotion of international competitiveness.

With the continuous and severe environmental situation in China, research on new energy engineering machinery is valued by the government of China, and the government of China also gives relevant support to the new energy engineering machinery in policy and technology. In addition, from the perspective of practical application, the engineering machinery itself can generate great pollution in the engineering operation process, the energy consumption is high, the harm to the environment is great, and the new energy engineering machinery is more environment-friendly than the traditional fuel engineering machinery, so that the development of the new energy engineering machinery is one of the inevitable directions of sustainable development of the engineering machinery.

In order to save energy and protect environment, the development of new energy engineering machinery has been increased in countries of the day, the U.S. and the Germany for more than ten years, and some engineering machinery factories of China also develop a small amount of new energy engineering machinery in recent years. Theories and practices prove that the development of new energy engineering machinery and the innovation of driving modes of the engineering machinery for energy conservation and emission reduction are one of the inevitable trends of sustainable development of the engineering machinery, and Russian 'TETP' company clarifies the purposes when developing general municipal engineering electric vehicles: (1) energy conservation and environmental protection; (2) Developing new engineering machinery, meeting domestic requirements and exports, and expanding development approaches; (3) Reduce municipal workers' labor intensity and improve the operation comfort (high efficiency and zero emission of the electric car).

The new energy machine accords with the basic idea of energy conservation and environmental protection, and can prepare for solving the energy crisis, and current engineering machine can not satisfy the actual demand in both its operation travelling comfort and energy-conservation nature, and along with each aspect demand constantly promotes, engineering machine will become important pollution sources, follows the trend development new energy engineering machine of times based on this demand.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: an object of the utility model is to prior art not enough, provide a power assembly device for electricelectric motor loader, in order to solve the problem that proposes in the background art.

The technical scheme is as follows: a pure power assembly device for electric loader, including power battery, high-pressure box, BMS controller, unify controller more, the walking is automatically controlled, the walking motor, pump motor, hydraulic pressure tandem pump and gearbox, power battery's output connection high-pressure box, the high-pressure box controls its interior DC contactor's switching through the BMS controller, the output of high-pressure box inserts the input of unifying the controller more, and the output of unifying the controller more divides two shunts, and one shunt connects the automatically controlled input of walking, and the automatically controlled output of walking inserts the walking motor, and the rethread gearbox is used for driving the walking of loader, and another branch records inserts the pump motor for drive hydraulic pressure tandem pump drives big arm, tipping bucket and the a steering system of loader.

Further, as a preferred embodiment, the power battery is formed by combining 8 series 2 of C-type electric boxes 4, the voltage of each C-type electric box is 154.56V, the electric quantity is 228Ah, and the total output voltage after the series 2 of power batteries 4 is 618.24V, and the electric quantity is 281.9Ah.

Further, as a preferred embodiment, the high-voltage output of the power battery is divided into two paths to the input end of the high-voltage box; the on-off of a high-voltage direct-current contactor of the output part in the high-voltage box is controlled by a VCU and a BMS controller through CAN communication; the high-voltage box is provided with two paths of inputs and two paths of outputs, and the two paths of outputs are respectively connected with the two paths of inputs of the all-in-one controller.

Further, as a preferred embodiment, the all-in-one controller distributes energy, the output of the all-in-one controller is divided into three branches, and the first branch is supplied to the walking electric control unit and used for driving the walking motor; the second branch is used for supplying a motor for the pump and is used for driving the hydraulic series pump; the third branch supplies an air pump, an air conditioner and a heat management system of the loading vehicle.

Further, as a preferred embodiment, the traveling motor and the pump motor are permanent magnet synchronous motors.

Further, as a preferred embodiment, an output shaft of the walking motor is connected to a gearbox, and the output shaft of the gearbox is connected to a front axle and a rear axle of the electric loader through a coupler and a transmission shaft so as to drive front wheels and rear wheels of the electric loader; the output shaft of the pump motor is connected to the hydraulic series pump through a coupler and used for driving the hydraulic series pump to lift arms, skip buckets and steer of the electric loader.

Has the advantages that: (1) The utility model discloses the scheme adopts two motor drive modes, and a motor provides walking power, and a motor provides operating power, and two motor drive have obvious advantage in energy-conservation, and the loader has very frequent brake action in work, all can carry out energy recuperation, and under the wait state in addition, also can self-closing operating motor be in order to reach the effect of practicing thrift the energy consumption. On the premise of reducing energy consumption, the same working time is achieved, the capacity of the power battery can be reduced, the servicing quality of the whole vehicle is reduced, and the cost of the whole vehicle is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the solution of the present invention;

fig. 2 is a high-voltage topological diagram of the scheme of the utility model.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1: the utility model provides a pure electric power assembly device for loader, refers to fig. 1 and is its schematic diagram of structure, including power battery, high-pressure box, BMS controller, the controller that unifies more, the walking is automatically controlled, the walking motor, pump motor, hydraulic pressure series pump and gearbox, power battery's output is connected the high-pressure box, the switching of direct current contactor in it is controlled through the BMS controller to the high-pressure box, the output of high-pressure box inserts the input of the controller that unifies more, and the output of the controller that unifies more divides two shunts, and one shunt connects the automatically controlled input of walking, and the automatically controlled output of walking inserts the walking motor, and the rethread gearbox is used for driving the walking of loader, and another branch is inserted pump motor for driving hydraulic pressure series pump drives big arm, tipping bucket and the a steering system of loader.

The power battery is formed by combining 8C-type electric boxes 4 in series-parallel mode 2, the voltage of each C-type electric box is 154.56V, the electric quantity is 228Ah, and the total output voltage of the power battery 4 in series-parallel mode 2 is 618.24V, and the electric quantity is 281.9Ah.

The high-voltage output end of 8 power batteries after 4 power batteries are connected in series to form a battery pack is input into the high-voltage box in two ways; the on-off of a high-voltage direct-current contactor of the output part in the high-voltage box is controlled by a VCU and a BMS controller through CAN communication; the high-voltage box is provided with two paths of inputs and two paths of outputs, and the two paths of outputs are respectively connected with the two paths of inputs of the all-in-one controller.

Referring to fig. 2, in the high-voltage topological diagram of the present scheme, the all-in-one controller distributes energy, an output of the all-in-one controller is divided into three branches, and a first branch is supplied to the traveling electric controller and used for driving the traveling motor; the second branch is used for supplying a motor for the pump and is used for driving the hydraulic series pump; the third branch supplies other loads of the loader, such as an inflation pump, an air conditioner, a thermal management system and the like. The walking motor and the pump motor adopt permanent magnet synchronous motors.

An output shaft of the walking motor is connected with a gearbox, and the output shaft of the gearbox is connected to a front axle and a rear axle of the electric loader through a coupler and a transmission shaft and used for driving front wheels and rear wheels of the electric loader; the output shaft of the pump motor is connected to the hydraulic series pump through a coupler and used for driving the hydraulic series pump to lift arms, skip buckets and steer of the electric loader.

This scheme adopts two motor drive modes, and a motor provides walking power, and a motor provides working power. The double-motor drive has obvious advantages in energy conservation, the loader has very frequent braking actions in work, energy recovery can be carried out, and in addition, the working motor can be automatically closed in a waiting state so as to achieve the effect of saving energy consumption. On the premise of reducing energy consumption, the same working time is achieved, the capacity of the power battery can be reduced, the servicing quality of the whole vehicle is reduced, and the cost of the whole vehicle is reduced.

As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a pure power assembly device for electric loader which characterized in that: including power battery, high-pressure box, BMS controller, unify controller, walking automatically controlled, walking motor, pump motor, hydraulic pressure tandem pump and gearbox more, high-pressure box is connected to power battery's output, the switching of direct current contactor in it is controlled through the BMS controller to the high-pressure box, the output of high-pressure box inserts the input of unifying the controller more, and the output of unifying the controller more divides two shunts, and one branch connects the automatically controlled input of walking, and the automatically controlled output of walking inserts the walking motor, and the rethread gearbox is used for driving the walking of loader, and another divides to record inserts the pump motor for drive hydraulic pressure tandem pump drives big arm, tipping bucket and the a steering system of loader.

2. The power assembly device for the pure electric loader according to claim 1, characterized in that: the power battery is formed by connecting 8C-type electric boxes 4 in series and 2 in parallel, the voltage of each C-type electric box is 154.56V, the electric quantity is 228Ah, and the total output voltage of the power battery 4 connected in series and 2 in parallel is 618.24V, and the electric quantity is 281.9Ah.

3. The power assembly device for the pure electric loader according to claim 1 or 2, characterized in that: the high-voltage output of the power battery is divided into two paths to the input end of the high-voltage box; the on-off of a high-voltage direct current contactor at the output part in the high-voltage box is controlled by the VCU and the BMS controller through CAN communication; the high-voltage box is provided with two paths of inputs and two paths of outputs, and the two paths of outputs are respectively connected with the two paths of inputs of the all-in-one controller.

4. The power assembly device for the pure electric loader according to claim 3, characterized in that: the all-in-one controller distributes energy, the output of the all-in-one controller is divided into three branches, and the first branch is supplied to a walking electric controller and used for driving a walking motor; the second branch is used for supplying a motor for the pump and is used for driving the hydraulic series pump; the third branch supplies an air pump, an air conditioner and a heat management system of the loading vehicle.

5. The power assembly device for the pure electric loader according to claim 4, characterized in that: the walking motor and the pump motor adopt permanent magnet synchronous motors.

6. The power assembly device for the pure electric loader according to claim 5, characterized in that: an output shaft of the walking motor is connected with a gearbox, and the output shaft of the gearbox is connected to a front axle and a rear axle of the electric loader through a coupler and a transmission shaft and used for driving front wheels and rear wheels of the electric loader; an output shaft of the pump motor is connected to the hydraulic series pump through a coupler and used for driving the hydraulic series pump to carry out lifting arm, tipping bucket and steering work of the electric loader.