CN219887006U

CN219887006U - Electric excavator

Info

Publication number: CN219887006U
Application number: CN202321495297.4U
Authority: CN
Inventors: 罗柏香; 张虹; 冯莉莎; 郭伟福; 刘晓强; 白容; 邢树鑫
Original assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-10-24
Anticipated expiration: 2033-06-13

Abstract

The utility model relates to an electric excavator, which aims to solve the problem of inconvenient maintenance of a power battery of the existing electric excavator. In the utility model, the rear cover is opened along with the top cover to increase the maintenance space of the battery compartment, so as to facilitate the maintenance and the maintenance of the power battery.

Description

Electric excavator

Technical Field

The present utility model relates to an excavator, and more particularly, to an electric excavator.

Background

The electric excavator uses a vehicle-mounted power battery as power, and the power battery is arranged in the battery compartment. The battery compartment is positioned at the front side of the counterweight, the hood side doors at the left side and the right side of the battery compartment, and the top surface is a top hood. The hood side door is primarily intended to be opened during maintenance of the components beside the battery compartment, the counterweight behind the battery compartment being typically fixedly mounted. Therefore, when the existing electric excavator is used for repairing and maintaining the power battery in the battery compartment, the top cover can be opened only, the operable space is small, and when the power battery is required to be disassembled and assembled, even the counterweight at the rear part is required to be removed, so that inconvenience is caused to the repairing and maintaining of the power battery.

Disclosure of Invention

The utility model aims to solve the technical problem that the maintenance of the power battery of the existing electric excavator is inconvenient, and provides an electric excavator which is convenient for the maintenance and the repair of the power battery.

The technical scheme for achieving the purpose of the utility model is as follows: the utility model provides an electric excavator of structure, is provided with the battery compartment that is used for holding power battery in the front side of counter weight, the top of battery compartment is equipped with the top cap, its characterized in that the rear side of battery compartment is provided with the back cover, top cap front portion is articulated with fixed structure, is equipped with the booster unit that promotes the top cap and overturn from top to bottom between top cap and fixed structure, the back cover top with top cap rear end fixed connection, the back cover is located when closing on the counter weight.

In the utility model, the rear cover which is fixedly connected with the top cover and can be turned over and opened along with the top cover is arranged, and the maintenance space of the battery compartment is increased after the rear cover is opened, so that the maintenance and the maintenance of the power battery are convenient.

In the electric excavator, the top position of the position, opposite to the battery compartment, of the counterweight is not higher than the mounting surface of the power battery. Further, the portion is planar. The part is lower than the power battery mounting surface, and is convenient for the power battery to enter and exit the battery compartment in the process of dismounting.

In the electric excavator, a lock catch used for being connected with a rear cover is arranged on a plane, opposite to the top, of the counterweight and the battery compartment.

In the electric excavator, a limiting block for limiting the rear cover left and right is arranged on a plane, opposite to the top, of the counterweight and the battery compartment, the upper part of the limiting block is wedge-shaped, and a limiting groove matched with the limiting block is formed in the lower part of the rear cover.

In the electric excavator, the power assisting device is a torsion spring arranged at the hinged position of the top cover.

In the electric excavator, the power assisting device can also be a hydraulic oil cylinder, an air cylinder or an electric screw rod telescopic device. Further, the power assisting devices are arranged on the left side and the right side of the battery compartment.

Compared with the prior art, in the utility model, the rear cover is opened along with the top cover to increase the maintenance space of the battery compartment, so that the maintenance and the maintenance of the power battery are convenient.

Drawings

Fig. 1 is a schematic view of the structure of the rear part of the upper body of the electric excavator of the present utility model.

Fig. 2 is a schematic view showing the front installation of a top cover in the electric excavator of the present utility model.

Fig. 3 is a schematic view showing a hinge structure of a top cover in the electric excavator of the present utility model.

Fig. 4 is a schematic structural view of a hinge seat of a top cover in the electric excavator of the present utility model.

Fig. 5 is a schematic view of the electric shovel according to the present utility model in a state where the roof cover is opened.

Part names and serial numbers in the figure:

the device comprises a rotary platform 1, a counterweight 2, a top cover 3, a side door 4, a rear cover 5, a channel plate 6, a fixed structural member 7, a top cover hinging seat 8, a power battery 9, a hydraulic cylinder 10 and a limiting block 11.

Detailed Description

The following describes specific embodiments with reference to the drawings.

Fig. 1, 2 and 5 show a partial structure of an upper body of an excavator according to an embodiment of the present utility model.

The upper body of the electric excavator comprises a rotary platform 1, a counterweight 2 mounted at the rear of the rotary platform 1, a working device and a cab (not shown) mounted at the front of the rotary platform 1, and the like. The swivel platform is pivotally mounted to a lower body (not shown). A fixed structural member 7 is arranged on the rotary platform 1 and is used for supporting and installing covering parts such as a top cover 3, a channel plate 6, a side door 4, a sealing plate and the like so as to form an installation space for installing components such as a power battery, a motor, a pump, a valve and the like.

As shown in fig. 5, a battery compartment for accommodating and mounting a power battery 9 is provided at the rear of the upper vehicle body, the rear of the battery compartment is a counterweight 2, and the left and right sides are side doors 4.

The top of battery compartment is equipped with top cap 3, and the rear side of battery compartment is provided with back shroud 5, and top cap 3 front portion is articulated with fixed structure 7, is equipped with the booster unit that promotes the top cap upset from top to bottom between top cap 3 and fixed structure 7, and back shroud 5 top and top cap 3 rear end fixed connection sit on counter weight 2 when back shroud 5 is closed.

As shown in fig. 1 and fig. 2, the top of the position of the counterweight 2 opposite to the battery compartment is not higher than the mounting surface of the power battery 9, the position is a plane, a limiting block 11 for limiting the rear cover left and right is mounted on the plane, the upper part of the limiting block 11 is wedge-shaped, and a limiting groove (not shown in the figure) adapted to the limiting block is arranged at the lower part of the rear cover. As shown in fig. 5, the two limiting blocks are arranged at intervals left and right, and after the rear cover is closed, the limiting blocks 11 are embedded into the limiting grooves of the rear cover to prevent the rear cover from shaking left and right. A lock catch can be arranged on the plane of the top of the counterweight, and when the rear cover 5 closes the battery compartment and sits on the counterweight, the lock catch is matched with a lock on the rear cover 5 to lock the rear cover. The part is lower than the power battery mounting surface, and is convenient for the power battery to enter and exit the battery compartment in the process of dismounting.

As shown in fig. 2 to 4, two top cover hinge seats 8 are fixedly installed at the left and right sides of the top of a fixed structural member 7 at the front part of the top cover, and the top cover is rotatably connected with the top cover hinge seats 8 through a pin shaft.

As shown in fig. 5, the booster is composed of hydraulic cylinders 10 arranged on the left and right sides of the battery compartment, one end of each hydraulic cylinder 10 is hinged to the framework on the lower side of the top cover 3, and the other end is hinged to the fixed structural member 7. When the piston rod of the hydraulic cylinder 10 extends out, the top cover 3 can be pushed to turn over forwards and upwards, and the rear cover 5 is driven to lift, so that the battery compartment is exposed.

In this embodiment, battery compartment rear side sets up and can open back shroud 5 together with the overhead guard, and after the overhead guard 3 was opened for battery compartment top and rear portion expose, thereby make power battery have great space and be used for maintenance and maintenance operation to get into battery compartment also comparatively convenient when power battery dismouting.

In this embodiment, the booster may be a cylinder, an electric screw rod expansion device, a gas spring, or the like, or may be a torsion spring mounted at the hinge position of the top cover, or may be a combination of a torsion spring mounted at the hinge position of the top cover and a cylinder, or an electric screw rod expansion device, a gas spring.

Claims

1. The utility model provides an electric excavator, is provided with the battery compartment that is used for holding power battery at the front side of counter weight, the top of battery compartment is equipped with the top cap, its characterized in that the rear side of battery compartment is provided with the back cover, the top cap front portion is articulated with fixed structure, is equipped with the booster unit that promotes the top cap and overturn from top to bottom between top cap and fixed structure, the back cover top with top cap rear end fixed connection, the back cover is located when closing on the counter weight.

2. The electric excavator of claim 1 wherein the location of the counterweight directly opposite the battery compartment is at a top elevation no higher than the power battery mounting surface.

3. The electric excavator of claim 2 wherein the top of the portion of the counterweight opposite the battery compartment is planar.

4. The electric excavator of claim 3 wherein the counterweight and battery compartment are provided with a catch on a plane facing the top and adapted to be coupled to the rear housing.

5. The electric excavator of claim 3, wherein the counterweight and the battery compartment are opposite to the top plane, a limiting block for limiting the rear cover left and right is arranged on the top plane, the upper part of the limiting block is wedge-shaped, and a limiting groove matched with the limiting block is arranged on the lower part of the rear cover.

6. The electric excavator of any one of claims 1 to 5 wherein the booster means is a torsion spring mounted at the top housing hinge position.

7. The electric excavator according to any one of claims 1 to 5, wherein the booster means is a hydraulic ram, or a cylinder, or an electric screw telescopic means.

8. The electric excavator of claim 7 wherein the booster is disposed on both the left and right sides of the battery compartment.